* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (170 commits)
[SCSI] scsi_dh_rdac: Add MD36xxf into device list
[SCSI] scsi_debug: add consecutive medium errors
[SCSI] libsas: fix ata list corruption issue
[SCSI] hpsa: export resettable host attribute
[SCSI] hpsa: move device attributes to avoid forward declarations
[SCSI] scsi_debug: Logical Block Provisioning (SBC3r26)
[SCSI] sd: Logical Block Provisioning update
[SCSI] Include protection operation in SCSI command trace
[SCSI] hpsa: fix incorrect PCI IDs and add two new ones (2nd try)
[SCSI] target: Fix volume size misreporting for volumes > 2TB
[SCSI] bnx2fc: Broadcom FCoE offload driver
[SCSI] fcoe: fix broken fcoe interface reset
[SCSI] fcoe: precedence bug in fcoe_filter_frames()
[SCSI] libfcoe: Remove stale fcoe-netdev entries
[SCSI] libfcoe: Move FCOE_MTU definition from fcoe.h to libfcoe.h
[SCSI] libfc: introduce __fc_fill_fc_hdr that accepts fc_hdr as an argument
[SCSI] fcoe, libfc: initialize EM anchors list and then update npiv EMs
[SCSI] Revert "[SCSI] libfc: fix exchange being deleted when the abort itself is timed out"
[SCSI] libfc: Fixing a memory leak when destroying an interface
[SCSI] megaraid_sas: Version and Changelog update
...
Fix up trivial conflicts due to whitespace differences in
drivers/scsi/libsas/{sas_ata.c,sas_scsi_host.c}
+Release Date : Thu. Feb 24, 2011 17:00:00 PST 2010 -
+ (emaild-id:megaraidlinux@lsi.com)
+ Adam Radford
+Current Version : 00.00.05.34-rc1
+Old Version : 00.00.05.29-rc1
+ 1. Fix some failure gotos from megasas_probe_one(), etc.
+ 2. Add missing check_and_restore_queue_depth() call in
+ complete_cmd_fusion().
+ 3. Enable MSI-X before calling megasas_init_fw().
+ 4. Call tasklet_schedule() even if outbound_intr_status == 0 for MFI based
+ boards in MSI-X mode.
+ 5. Fix megasas_probe_one() to clear PCI_MSIX_FLAGS_ENABLE in msi control
+ register in kdump kernel.
+ 6. Fix megasas_get_cmd() to only print "Command pool empty" if
+ megasas_dbg_lvl is set.
+ 7. Fix megasas_build_dcdb_fusion() to not filter by TYPE_DISK.
+ 8. Fix megasas_build_dcdb_fusion() to use io_request->LUN[1] field.
+ 9. Add MR_EVT_CFG_CLEARED to megasas_aen_polling().
+ 10. Fix tasklet_init() in megasas_init_fw() to use instancet->tasklet.
+ 11. Fix fault state handling in megasas_transition_to_ready().
+ 12. Fix max_sectors setting for IEEE SGL's.
+ 13. Fix iMR OCR support to work correctly.
+-------------------------------------------------------------------------------
Release Date : Tues. Dec 14, 2010 17:00:00 PST 2010 -
(emaild-id:megaraidlinux@lsi.com)
Adam Radford
nor supported by HP with this driver. For older Smart Arrays, the cciss
driver should still be used.
+The "hpsa_simple_mode=1" boot parameter may be used to prevent the driver from
+putting the controller into "performant" mode. The difference is that with simple
+mode, each command completion requires an interrupt, while with "performant mode"
+(the default, and ordinarily better performing) it is possible to have multiple
+command completions indicated by a single interrupt.
+
HPSA specific entries in /sys
-----------------------------
/sys/class/scsi_host/host*/rescan
/sys/class/scsi_host/host*/firmware_revision
+ /sys/class/scsi_host/host*/resettable
+ /sys/class/scsi_host/host*/transport_mode
the host "rescan" attribute is a write only attribute. Writing to this
attribute will cause the driver to scan for new, changed, or removed devices
root@host:/sys/class/scsi_host/host4# cat firmware_revision
7.14
+ The transport_mode indicates whether the controller is in "performant"
+ or "simple" mode. This is controlled by the "hpsa_simple_mode" module
+ parameter.
+
+ The "resettable" read-only attribute indicates whether a particular
+ controller is able to honor the "reset_devices" kernel parameter. If the
+ device is resettable, this file will contain a "1", otherwise, a "0". This
+ parameter is used by kdump, for example, to reset the controller at driver
+ load time to eliminate any outstanding commands on the controller and get the
+ controller into a known state so that the kdump initiated i/o will work right
+ and not be disrupted in any way by stale commands or other stale state
+ remaining on the controller from the previous kernel. This attribute enables
+ kexec tools to warn the user if they attempt to designate a device which is
+ unable to honor the reset_devices kernel parameter as a dump device.
+
HPSA specific disk attributes:
------------------------------
underruns (overruns should be rare). If possible an LLD
should set 'resid' prior to invoking 'done'. The most
interesting case is data transfers from a SCSI target
- device device (i.e. READs) that underrun.
+ device (e.g. READs) that underrun.
underflow - LLD should place (DID_ERROR << 16) in 'result' if
actual number of bytes transferred is less than this
figure. Not many LLDs implement this check and some that
report a DID_ERROR. Better for an LLD to implement
'resid'.
+It is recommended that a LLD set 'resid' on data transfers from a SCSI
+target device (e.g. READs). It is especially important that 'resid' is set
+when such data transfers have sense keys of MEDIUM ERROR and HARDWARE ERROR
+(and possibly RECOVERED ERROR). In these cases if a LLD is in doubt how much
+data has been received then the safest approach is to indicate no bytes have
+been received. For example: to indicate that no valid data has been received
+a LLD might use these helpers:
+ scsi_set_resid(SCpnt, scsi_bufflen(SCpnt));
+where 'SCpnt' is a pointer to a scsi_cmnd object. To indicate only three 512
+bytes blocks has been received 'resid' could be set like this:
+ scsi_set_resid(SCpnt, scsi_bufflen(SCpnt) - (3 * 512));
+
The scsi_cmnd structure is defined in include/scsi/scsi_cmnd.h
F: drivers/s390/crypto/
S390 ZFCP DRIVER
-M: Christof Schmitt <christof.schmitt@de.ibm.com>
-M: Swen Schillig <swen@vnet.ibm.com>
+M: Steffen Maier <maier@linux.vnet.ibm.com>
M: linux390@de.ibm.com
L: linux-s390@vger.kernel.org
W: http://www.ibm.com/developerworks/linux/linux390/
if (error && req->cmd_type == REQ_TYPE_FS &&
!(req->cmd_flags & REQ_QUIET)) {
- printk(KERN_ERR "end_request: I/O error, dev %s, sector %llu\n",
- req->rq_disk ? req->rq_disk->disk_name : "?",
- (unsigned long long)blk_rq_pos(req));
+ char *error_type;
+
+ switch (error) {
+ case -ENOLINK:
+ error_type = "recoverable transport";
+ break;
+ case -EREMOTEIO:
+ error_type = "critical target";
+ break;
+ case -EBADE:
+ error_type = "critical nexus";
+ break;
+ case -EIO:
+ default:
+ error_type = "I/O";
+ break;
+ }
+ printk(KERN_ERR "end_request: %s error, dev %s, sector %llu\n",
+ error_type, req->rq_disk ? req->rq_disk->disk_name : "?",
+ (unsigned long long)blk_rq_pos(req));
}
blk_account_io_completion(req, nr_bytes);
stats->custom[3].value = conn->fmr_unalign_cnt;
}
+static int iscsi_iser_get_ep_param(struct iscsi_endpoint *ep,
+ enum iscsi_param param, char *buf)
+{
+ struct iser_conn *ib_conn = ep->dd_data;
+ int len;
+
+ switch (param) {
+ case ISCSI_PARAM_CONN_PORT:
+ case ISCSI_PARAM_CONN_ADDRESS:
+ if (!ib_conn || !ib_conn->cma_id)
+ return -ENOTCONN;
+
+ return iscsi_conn_get_addr_param((struct sockaddr_storage *)
+ &ib_conn->cma_id->route.addr.dst_addr,
+ param, buf);
+ break;
+ default:
+ return -ENOSYS;
+ }
+
+ return len;
+}
+
static struct iscsi_endpoint *
iscsi_iser_ep_connect(struct Scsi_Host *shost, struct sockaddr *dst_addr,
int non_blocking)
ISCSI_MAX_BURST |
ISCSI_PDU_INORDER_EN |
ISCSI_DATASEQ_INORDER_EN |
+ ISCSI_CONN_PORT |
+ ISCSI_CONN_ADDRESS |
ISCSI_EXP_STATSN |
ISCSI_PERSISTENT_PORT |
ISCSI_PERSISTENT_ADDRESS |
.destroy_conn = iscsi_iser_conn_destroy,
.set_param = iscsi_iser_set_param,
.get_conn_param = iscsi_conn_get_param,
+ .get_ep_param = iscsi_iser_get_ep_param,
.get_session_param = iscsi_session_get_param,
.start_conn = iscsi_iser_conn_start,
.stop_conn = iscsi_iser_conn_stop,
if (!error && !clone->errors)
return 0; /* I/O complete */
- if (error == -EOPNOTSUPP)
- return error;
-
- if (clone->cmd_flags & REQ_DISCARD)
- /*
- * Pass all discard request failures up.
- * FIXME: only fail_path if the discard failed due to a
- * transport problem. This requires precise understanding
- * of the underlying failure (e.g. the SCSI sense).
- */
+ if (error == -EOPNOTSUPP || error == -EREMOTEIO)
return error;
if (mpio->pgpath)
fail_path(mpio->pgpath);
spin_lock_irqsave(&m->lock, flags);
- if (!m->nr_valid_paths && !m->queue_if_no_path && !__must_push_back(m))
- r = -EIO;
+ if (!m->nr_valid_paths) {
+ if (!m->queue_if_no_path) {
+ if (!__must_push_back(m))
+ r = -EIO;
+ } else {
+ if (error == -EBADE)
+ r = error;
+ }
+ }
spin_unlock_irqrestore(&m->lock, flags);
return r;
#define MPI_SAS_IOUNIT0_RATE_SATA_OOB_COMPLETE (0x03)
#define MPI_SAS_IOUNIT0_RATE_1_5 (0x08)
#define MPI_SAS_IOUNIT0_RATE_3_0 (0x09)
+#define MPI_SAS_IOUNIT0_RATE_6_0 (0x0A)
/* see mpi_sas.h for values for SAS IO Unit Page 0 ControllerPhyDeviceInfo values */
#define MPI_EVENT_SAS_PLS_LR_RATE_SATA_OOB_COMPLETE (0x03)
#define MPI_EVENT_SAS_PLS_LR_RATE_1_5 (0x08)
#define MPI_EVENT_SAS_PLS_LR_RATE_3_0 (0x09)
+#define MPI_EVENT_SAS_PLS_LR_RATE_6_0 (0x0A)
/* SAS Discovery Event data */
case MPI_EVENT_SAS_PLS_LR_RATE_3_0:
snprintf(evStr, EVENT_DESCR_STR_SZ,
"SAS PHY Link Status: Phy=%d:"
- " Rate 3.0 Gpbs",PhyNumber);
+ " Rate 3.0 Gbps", PhyNumber);
+ break;
+ case MPI_EVENT_SAS_PLS_LR_RATE_6_0:
+ snprintf(evStr, EVENT_DESCR_STR_SZ,
+ "SAS PHY Link Status: Phy=%d:"
+ " Rate 6.0 Gbps", PhyNumber);
break;
default:
snprintf(evStr, EVENT_DESCR_STR_SZ,
else
karg->adapterType = MPT_IOCTL_INTERFACE_SCSI;
- if (karg->hdr.port > 1)
+ if (karg->hdr.port > 1) {
+ kfree(karg);
return -EINVAL;
+ }
port = karg->hdr.port;
karg->port = port;
.change_queue_depth = mptscsih_change_queue_depth,
.eh_abort_handler = mptscsih_abort,
.eh_device_reset_handler = mptscsih_dev_reset,
- .eh_bus_reset_handler = mptscsih_bus_reset,
.eh_host_reset_handler = mptscsih_host_reset,
.bios_param = mptscsih_bios_param,
.can_queue = MPT_SAS_CAN_QUEUE,
case MPI_SAS_IOUNIT0_RATE_3_0:
phy->negotiated_linkrate = SAS_LINK_RATE_3_0_GBPS;
break;
+ case MPI_SAS_IOUNIT0_RATE_6_0:
+ phy->negotiated_linkrate = SAS_LINK_RATE_6_0_GBPS;
+ break;
case MPI_SAS_IOUNIT0_RATE_SATA_OOB_COMPLETE:
case MPI_SAS_IOUNIT0_RATE_UNKNOWN:
default:
}
if (link_rate == MPI_SAS_IOUNIT0_RATE_1_5 ||
- link_rate == MPI_SAS_IOUNIT0_RATE_3_0) {
+ link_rate == MPI_SAS_IOUNIT0_RATE_3_0 ||
+ link_rate == MPI_SAS_IOUNIT0_RATE_6_0) {
if (!port_info) {
if (ioc->old_sas_discovery_protocal) {
{ "Broadcom NetXtreme II BCM57712E XGb" }
};
-#ifndef PCI_DEVICE_ID_NX2_57712
-#define PCI_DEVICE_ID_NX2_57712 0x1662
-#endif
-#ifndef PCI_DEVICE_ID_NX2_57712E
-#define PCI_DEVICE_ID_NX2_57712E 0x1663
-#endif
-
static DEFINE_PCI_DEVICE_TABLE(bnx2x_pci_tbl) = {
{ PCI_VDEVICE(BROADCOM, PCI_DEVICE_ID_NX2_57710), BCM57710 },
{ PCI_VDEVICE(BROADCOM, PCI_DEVICE_ID_NX2_57711), BCM57711 },
{
int retval = -ENOMEM;
- zfcp_data.gpn_ft_cache = zfcp_cache_hw_align("zfcp_gpn",
- sizeof(struct zfcp_fc_gpn_ft_req));
- if (!zfcp_data.gpn_ft_cache)
- goto out;
-
- zfcp_data.qtcb_cache = zfcp_cache_hw_align("zfcp_qtcb",
- sizeof(struct fsf_qtcb));
- if (!zfcp_data.qtcb_cache)
+ zfcp_fsf_qtcb_cache = zfcp_cache_hw_align("zfcp_fsf_qtcb",
+ sizeof(struct fsf_qtcb));
+ if (!zfcp_fsf_qtcb_cache)
goto out_qtcb_cache;
- zfcp_data.sr_buffer_cache = zfcp_cache_hw_align("zfcp_sr",
- sizeof(struct fsf_status_read_buffer));
- if (!zfcp_data.sr_buffer_cache)
- goto out_sr_cache;
+ zfcp_fc_req_cache = zfcp_cache_hw_align("zfcp_fc_req",
+ sizeof(struct zfcp_fc_req));
+ if (!zfcp_fc_req_cache)
+ goto out_fc_cache;
- zfcp_data.gid_pn_cache = zfcp_cache_hw_align("zfcp_gid",
- sizeof(struct zfcp_fc_gid_pn));
- if (!zfcp_data.gid_pn_cache)
- goto out_gid_cache;
-
- zfcp_data.adisc_cache = zfcp_cache_hw_align("zfcp_adisc",
- sizeof(struct zfcp_fc_els_adisc));
- if (!zfcp_data.adisc_cache)
- goto out_adisc_cache;
-
- zfcp_data.scsi_transport_template =
+ zfcp_scsi_transport_template =
fc_attach_transport(&zfcp_transport_functions);
- if (!zfcp_data.scsi_transport_template)
+ if (!zfcp_scsi_transport_template)
goto out_transport;
- scsi_transport_reserve_device(zfcp_data.scsi_transport_template,
+ scsi_transport_reserve_device(zfcp_scsi_transport_template,
sizeof(struct zfcp_scsi_dev));
out_ccw_register:
misc_deregister(&zfcp_cfdc_misc);
out_misc:
- fc_release_transport(zfcp_data.scsi_transport_template);
+ fc_release_transport(zfcp_scsi_transport_template);
out_transport:
- kmem_cache_destroy(zfcp_data.adisc_cache);
-out_adisc_cache:
- kmem_cache_destroy(zfcp_data.gid_pn_cache);
-out_gid_cache:
- kmem_cache_destroy(zfcp_data.sr_buffer_cache);
-out_sr_cache:
- kmem_cache_destroy(zfcp_data.qtcb_cache);
+ kmem_cache_destroy(zfcp_fc_req_cache);
+out_fc_cache:
+ kmem_cache_destroy(zfcp_fsf_qtcb_cache);
out_qtcb_cache:
- kmem_cache_destroy(zfcp_data.gpn_ft_cache);
-out:
return retval;
}
{
ccw_driver_unregister(&zfcp_ccw_driver);
misc_deregister(&zfcp_cfdc_misc);
- fc_release_transport(zfcp_data.scsi_transport_template);
- kmem_cache_destroy(zfcp_data.adisc_cache);
- kmem_cache_destroy(zfcp_data.gid_pn_cache);
- kmem_cache_destroy(zfcp_data.sr_buffer_cache);
- kmem_cache_destroy(zfcp_data.qtcb_cache);
- kmem_cache_destroy(zfcp_data.gpn_ft_cache);
+ fc_release_transport(zfcp_scsi_transport_template);
+ kmem_cache_destroy(zfcp_fc_req_cache);
+ kmem_cache_destroy(zfcp_fsf_qtcb_cache);
}
module_exit(zfcp_module_exit);
return -ENOMEM;
adapter->pool.qtcb_pool =
- mempool_create_slab_pool(4, zfcp_data.qtcb_cache);
+ mempool_create_slab_pool(4, zfcp_fsf_qtcb_cache);
if (!adapter->pool.qtcb_pool)
return -ENOMEM;
- adapter->pool.status_read_data =
- mempool_create_slab_pool(FSF_STATUS_READS_RECOM,
- zfcp_data.sr_buffer_cache);
- if (!adapter->pool.status_read_data)
+ BUILD_BUG_ON(sizeof(struct fsf_status_read_buffer) > PAGE_SIZE);
+ adapter->pool.sr_data =
+ mempool_create_page_pool(FSF_STATUS_READS_RECOM, 0);
+ if (!adapter->pool.sr_data)
return -ENOMEM;
adapter->pool.gid_pn =
- mempool_create_slab_pool(1, zfcp_data.gid_pn_cache);
+ mempool_create_slab_pool(1, zfcp_fc_req_cache);
if (!adapter->pool.gid_pn)
return -ENOMEM;
mempool_destroy(adapter->pool.qtcb_pool);
if (adapter->pool.status_read_req)
mempool_destroy(adapter->pool.status_read_req);
- if (adapter->pool.status_read_data)
- mempool_destroy(adapter->pool.status_read_data);
+ if (adapter->pool.sr_data)
+ mempool_destroy(adapter->pool.sr_data);
if (adapter->pool.gid_pn)
mempool_destroy(adapter->pool.gid_pn);
}
INIT_WORK(&adapter->stat_work, _zfcp_status_read_scheduler);
INIT_WORK(&adapter->scan_work, zfcp_fc_scan_ports);
+ INIT_WORK(&adapter->ns_up_work, zfcp_fc_sym_name_update);
if (zfcp_qdio_setup(adapter))
goto failed;
adapter->dma_parms.max_segment_size = ZFCP_QDIO_SBALE_LEN;
adapter->ccw_device->dev.dma_parms = &adapter->dma_parms;
- if (!zfcp_adapter_scsi_register(adapter))
+ if (!zfcp_scsi_adapter_register(adapter))
return adapter;
failed:
cancel_work_sync(&adapter->scan_work);
cancel_work_sync(&adapter->stat_work);
+ cancel_work_sync(&adapter->ns_up_work);
zfcp_destroy_adapter_work_queue(adapter);
zfcp_fc_wka_ports_force_offline(adapter->gs);
- zfcp_adapter_scsi_unregister(adapter);
+ zfcp_scsi_adapter_unregister(adapter);
sysfs_remove_group(&cdev->dev.kobj, &zfcp_sysfs_adapter_attrs);
zfcp_erp_thread_kill(adapter);
#define ZFCP_STATUS_LUN_READONLY 0x00000008
/* FSF request status (this does not have a common part) */
-#define ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT 0x00000002
#define ZFCP_STATUS_FSFREQ_ERROR 0x00000008
#define ZFCP_STATUS_FSFREQ_CLEANUP 0x00000010
#define ZFCP_STATUS_FSFREQ_ABORTSUCCEEDED 0x00000040
mempool_t *scsi_req;
mempool_t *scsi_abort;
mempool_t *status_read_req;
- mempool_t *status_read_data;
+ mempool_t *sr_data;
mempool_t *gid_pn;
mempool_t *qtcb_pool;
};
struct fsf_qtcb_bottom_port *stats_reset_data;
unsigned long stats_reset;
struct work_struct scan_work;
+ struct work_struct ns_up_work;
struct service_level service_level;
struct workqueue_struct *work_queue;
struct device_dma_parameters dma_parms;
void (*handler)(struct zfcp_fsf_req *);
};
-/* driver data */
-struct zfcp_data {
- struct scsi_host_template scsi_host_template;
- struct scsi_transport_template *scsi_transport_template;
- struct kmem_cache *gpn_ft_cache;
- struct kmem_cache *qtcb_cache;
- struct kmem_cache *sr_buffer_cache;
- struct kmem_cache *gid_pn_cache;
- struct kmem_cache *adisc_cache;
-};
-
#endif /* ZFCP_DEF_H */
if (zfcp_erp_adapter_strategy_open_fsf_xport(act) == ZFCP_ERP_FAILED)
return ZFCP_ERP_FAILED;
- if (mempool_resize(act->adapter->pool.status_read_data,
+ if (mempool_resize(act->adapter->pool.sr_data,
act->adapter->stat_read_buf_num, GFP_KERNEL))
return ZFCP_ERP_FAILED;
if (result == ZFCP_ERP_SUCCEEDED) {
register_service_level(&adapter->service_level);
queue_work(adapter->work_queue, &adapter->scan_work);
+ queue_work(adapter->work_queue, &adapter->ns_up_work);
} else
unregister_service_level(&adapter->service_level);
+
kref_put(&adapter->ref, zfcp_adapter_release);
break;
}
extern void zfcp_erp_timeout_handler(unsigned long);
/* zfcp_fc.c */
+extern struct kmem_cache *zfcp_fc_req_cache;
extern void zfcp_fc_enqueue_event(struct zfcp_adapter *,
enum fc_host_event_code event_code, u32);
extern void zfcp_fc_post_event(struct work_struct *);
extern void zfcp_fc_gs_destroy(struct zfcp_adapter *);
extern int zfcp_fc_exec_bsg_job(struct fc_bsg_job *);
extern int zfcp_fc_timeout_bsg_job(struct fc_bsg_job *);
+extern void zfcp_fc_sym_name_update(struct work_struct *);
/* zfcp_fsf.c */
+extern struct kmem_cache *zfcp_fsf_qtcb_cache;
extern int zfcp_fsf_open_port(struct zfcp_erp_action *);
extern int zfcp_fsf_open_wka_port(struct zfcp_fc_wka_port *);
extern int zfcp_fsf_close_wka_port(struct zfcp_fc_wka_port *);
struct qdio_buffer *);
/* zfcp_scsi.c */
-extern struct zfcp_data zfcp_data;
-extern int zfcp_adapter_scsi_register(struct zfcp_adapter *);
-extern void zfcp_adapter_scsi_unregister(struct zfcp_adapter *);
+extern struct scsi_transport_template *zfcp_scsi_transport_template;
+extern int zfcp_scsi_adapter_register(struct zfcp_adapter *);
+extern void zfcp_scsi_adapter_unregister(struct zfcp_adapter *);
extern struct fc_function_template zfcp_transport_functions;
extern void zfcp_scsi_rport_work(struct work_struct *);
extern void zfcp_scsi_schedule_rport_register(struct zfcp_port *);
#include <linux/types.h>
#include <linux/slab.h>
+#include <linux/utsname.h>
#include <scsi/fc/fc_els.h>
#include <scsi/libfc.h>
#include "zfcp_ext.h"
#include "zfcp_fc.h"
+struct kmem_cache *zfcp_fc_req_cache;
+
static u32 zfcp_fc_rscn_range_mask[] = {
[ELS_ADDR_FMT_PORT] = 0xFFFFFF,
[ELS_ADDR_FMT_AREA] = 0xFFFF00,
zfcp_fc_incoming_rscn(fsf_req);
}
-static void zfcp_fc_ns_gid_pn_eval(void *data)
+static void zfcp_fc_ns_gid_pn_eval(struct zfcp_fc_req *fc_req)
{
- struct zfcp_fc_gid_pn *gid_pn = data;
- struct zfcp_fsf_ct_els *ct = &gid_pn->ct;
- struct zfcp_fc_gid_pn_req *gid_pn_req = sg_virt(ct->req);
- struct zfcp_fc_gid_pn_resp *gid_pn_resp = sg_virt(ct->resp);
- struct zfcp_port *port = gid_pn->port;
+ struct zfcp_fsf_ct_els *ct_els = &fc_req->ct_els;
+ struct zfcp_fc_gid_pn_rsp *gid_pn_rsp = &fc_req->u.gid_pn.rsp;
- if (ct->status)
+ if (ct_els->status)
return;
- if (gid_pn_resp->ct_hdr.ct_cmd != FC_FS_ACC)
+ if (gid_pn_rsp->ct_hdr.ct_cmd != FC_FS_ACC)
return;
- /* paranoia */
- if (gid_pn_req->gid_pn.fn_wwpn != port->wwpn)
- return;
/* looks like a valid d_id */
- port->d_id = ntoh24(gid_pn_resp->gid_pn.fp_fid);
+ ct_els->port->d_id = ntoh24(gid_pn_rsp->gid_pn.fp_fid);
}
static void zfcp_fc_complete(void *data)
complete(data);
}
+static void zfcp_fc_ct_ns_init(struct fc_ct_hdr *ct_hdr, u16 cmd, u16 mr_size)
+{
+ ct_hdr->ct_rev = FC_CT_REV;
+ ct_hdr->ct_fs_type = FC_FST_DIR;
+ ct_hdr->ct_fs_subtype = FC_NS_SUBTYPE;
+ ct_hdr->ct_cmd = cmd;
+ ct_hdr->ct_mr_size = mr_size / 4;
+}
+
static int zfcp_fc_ns_gid_pn_request(struct zfcp_port *port,
- struct zfcp_fc_gid_pn *gid_pn)
+ struct zfcp_fc_req *fc_req)
{
struct zfcp_adapter *adapter = port->adapter;
DECLARE_COMPLETION_ONSTACK(completion);
+ struct zfcp_fc_gid_pn_req *gid_pn_req = &fc_req->u.gid_pn.req;
+ struct zfcp_fc_gid_pn_rsp *gid_pn_rsp = &fc_req->u.gid_pn.rsp;
int ret;
/* setup parameters for send generic command */
- gid_pn->port = port;
- gid_pn->ct.handler = zfcp_fc_complete;
- gid_pn->ct.handler_data = &completion;
- gid_pn->ct.req = &gid_pn->sg_req;
- gid_pn->ct.resp = &gid_pn->sg_resp;
- sg_init_one(&gid_pn->sg_req, &gid_pn->gid_pn_req,
- sizeof(struct zfcp_fc_gid_pn_req));
- sg_init_one(&gid_pn->sg_resp, &gid_pn->gid_pn_resp,
- sizeof(struct zfcp_fc_gid_pn_resp));
-
- /* setup nameserver request */
- gid_pn->gid_pn_req.ct_hdr.ct_rev = FC_CT_REV;
- gid_pn->gid_pn_req.ct_hdr.ct_fs_type = FC_FST_DIR;
- gid_pn->gid_pn_req.ct_hdr.ct_fs_subtype = FC_NS_SUBTYPE;
- gid_pn->gid_pn_req.ct_hdr.ct_options = 0;
- gid_pn->gid_pn_req.ct_hdr.ct_cmd = FC_NS_GID_PN;
- gid_pn->gid_pn_req.ct_hdr.ct_mr_size = ZFCP_FC_CT_SIZE_PAGE / 4;
- gid_pn->gid_pn_req.gid_pn.fn_wwpn = port->wwpn;
-
- ret = zfcp_fsf_send_ct(&adapter->gs->ds, &gid_pn->ct,
+ fc_req->ct_els.port = port;
+ fc_req->ct_els.handler = zfcp_fc_complete;
+ fc_req->ct_els.handler_data = &completion;
+ fc_req->ct_els.req = &fc_req->sg_req;
+ fc_req->ct_els.resp = &fc_req->sg_rsp;
+ sg_init_one(&fc_req->sg_req, gid_pn_req, sizeof(*gid_pn_req));
+ sg_init_one(&fc_req->sg_rsp, gid_pn_rsp, sizeof(*gid_pn_rsp));
+
+ zfcp_fc_ct_ns_init(&gid_pn_req->ct_hdr,
+ FC_NS_GID_PN, ZFCP_FC_CT_SIZE_PAGE);
+ gid_pn_req->gid_pn.fn_wwpn = port->wwpn;
+
+ ret = zfcp_fsf_send_ct(&adapter->gs->ds, &fc_req->ct_els,
adapter->pool.gid_pn_req,
ZFCP_FC_CTELS_TMO);
if (!ret) {
wait_for_completion(&completion);
- zfcp_fc_ns_gid_pn_eval(gid_pn);
+ zfcp_fc_ns_gid_pn_eval(fc_req);
}
return ret;
}
/**
- * zfcp_fc_ns_gid_pn_request - initiate GID_PN nameserver request
+ * zfcp_fc_ns_gid_pn - initiate GID_PN nameserver request
* @port: port where GID_PN request is needed
* return: -ENOMEM on error, 0 otherwise
*/
static int zfcp_fc_ns_gid_pn(struct zfcp_port *port)
{
int ret;
- struct zfcp_fc_gid_pn *gid_pn;
+ struct zfcp_fc_req *fc_req;
struct zfcp_adapter *adapter = port->adapter;
- gid_pn = mempool_alloc(adapter->pool.gid_pn, GFP_ATOMIC);
- if (!gid_pn)
+ fc_req = mempool_alloc(adapter->pool.gid_pn, GFP_ATOMIC);
+ if (!fc_req)
return -ENOMEM;
- memset(gid_pn, 0, sizeof(*gid_pn));
+ memset(fc_req, 0, sizeof(*fc_req));
ret = zfcp_fc_wka_port_get(&adapter->gs->ds);
if (ret)
goto out;
- ret = zfcp_fc_ns_gid_pn_request(port, gid_pn);
+ ret = zfcp_fc_ns_gid_pn_request(port, fc_req);
zfcp_fc_wka_port_put(&adapter->gs->ds);
out:
- mempool_free(gid_pn, adapter->pool.gid_pn);
+ mempool_free(fc_req, adapter->pool.gid_pn);
return ret;
}
static void zfcp_fc_adisc_handler(void *data)
{
- struct zfcp_fc_els_adisc *adisc = data;
- struct zfcp_port *port = adisc->els.port;
- struct fc_els_adisc *adisc_resp = &adisc->adisc_resp;
+ struct zfcp_fc_req *fc_req = data;
+ struct zfcp_port *port = fc_req->ct_els.port;
+ struct fc_els_adisc *adisc_resp = &fc_req->u.adisc.rsp;
- if (adisc->els.status) {
+ if (fc_req->ct_els.status) {
/* request rejected or timed out */
zfcp_erp_port_forced_reopen(port, ZFCP_STATUS_COMMON_ERP_FAILED,
"fcadh_1");
out:
atomic_clear_mask(ZFCP_STATUS_PORT_LINK_TEST, &port->status);
put_device(&port->dev);
- kmem_cache_free(zfcp_data.adisc_cache, adisc);
+ kmem_cache_free(zfcp_fc_req_cache, fc_req);
}
static int zfcp_fc_adisc(struct zfcp_port *port)
{
- struct zfcp_fc_els_adisc *adisc;
+ struct zfcp_fc_req *fc_req;
struct zfcp_adapter *adapter = port->adapter;
+ struct Scsi_Host *shost = adapter->scsi_host;
int ret;
- adisc = kmem_cache_zalloc(zfcp_data.adisc_cache, GFP_ATOMIC);
- if (!adisc)
+ fc_req = kmem_cache_zalloc(zfcp_fc_req_cache, GFP_ATOMIC);
+ if (!fc_req)
return -ENOMEM;
- adisc->els.port = port;
- adisc->els.req = &adisc->req;
- adisc->els.resp = &adisc->resp;
- sg_init_one(adisc->els.req, &adisc->adisc_req,
+ fc_req->ct_els.port = port;
+ fc_req->ct_els.req = &fc_req->sg_req;
+ fc_req->ct_els.resp = &fc_req->sg_rsp;
+ sg_init_one(&fc_req->sg_req, &fc_req->u.adisc.req,
sizeof(struct fc_els_adisc));
- sg_init_one(adisc->els.resp, &adisc->adisc_resp,
+ sg_init_one(&fc_req->sg_rsp, &fc_req->u.adisc.rsp,
sizeof(struct fc_els_adisc));
- adisc->els.handler = zfcp_fc_adisc_handler;
- adisc->els.handler_data = adisc;
+ fc_req->ct_els.handler = zfcp_fc_adisc_handler;
+ fc_req->ct_els.handler_data = fc_req;
/* acc. to FC-FS, hard_nport_id in ADISC should not be set for ports
without FC-AL-2 capability, so we don't set it */
- adisc->adisc_req.adisc_wwpn = fc_host_port_name(adapter->scsi_host);
- adisc->adisc_req.adisc_wwnn = fc_host_node_name(adapter->scsi_host);
- adisc->adisc_req.adisc_cmd = ELS_ADISC;
- hton24(adisc->adisc_req.adisc_port_id,
- fc_host_port_id(adapter->scsi_host));
+ fc_req->u.adisc.req.adisc_wwpn = fc_host_port_name(shost);
+ fc_req->u.adisc.req.adisc_wwnn = fc_host_node_name(shost);
+ fc_req->u.adisc.req.adisc_cmd = ELS_ADISC;
+ hton24(fc_req->u.adisc.req.adisc_port_id, fc_host_port_id(shost));
- ret = zfcp_fsf_send_els(adapter, port->d_id, &adisc->els,
+ ret = zfcp_fsf_send_els(adapter, port->d_id, &fc_req->ct_els,
ZFCP_FC_CTELS_TMO);
if (ret)
- kmem_cache_free(zfcp_data.adisc_cache, adisc);
+ kmem_cache_free(zfcp_fc_req_cache, fc_req);
return ret;
}
put_device(&port->dev);
}
-static void zfcp_free_sg_env(struct zfcp_fc_gpn_ft *gpn_ft, int buf_num)
+static struct zfcp_fc_req *zfcp_alloc_sg_env(int buf_num)
{
- struct scatterlist *sg = &gpn_ft->sg_req;
-
- kmem_cache_free(zfcp_data.gpn_ft_cache, sg_virt(sg));
- zfcp_sg_free_table(gpn_ft->sg_resp, buf_num);
-
- kfree(gpn_ft);
-}
+ struct zfcp_fc_req *fc_req;
-static struct zfcp_fc_gpn_ft *zfcp_alloc_sg_env(int buf_num)
-{
- struct zfcp_fc_gpn_ft *gpn_ft;
- struct zfcp_fc_gpn_ft_req *req;
-
- gpn_ft = kzalloc(sizeof(*gpn_ft), GFP_KERNEL);
- if (!gpn_ft)
+ fc_req = kmem_cache_zalloc(zfcp_fc_req_cache, GFP_KERNEL);
+ if (!fc_req)
return NULL;
- req = kmem_cache_zalloc(zfcp_data.gpn_ft_cache, GFP_KERNEL);
- if (!req) {
- kfree(gpn_ft);
- gpn_ft = NULL;
- goto out;
+ if (zfcp_sg_setup_table(&fc_req->sg_rsp, buf_num)) {
+ kmem_cache_free(zfcp_fc_req_cache, fc_req);
+ return NULL;
}
- sg_init_one(&gpn_ft->sg_req, req, sizeof(*req));
- if (zfcp_sg_setup_table(gpn_ft->sg_resp, buf_num)) {
- zfcp_free_sg_env(gpn_ft, buf_num);
- gpn_ft = NULL;
- }
-out:
- return gpn_ft;
-}
+ sg_init_one(&fc_req->sg_req, &fc_req->u.gpn_ft.req,
+ sizeof(struct zfcp_fc_gpn_ft_req));
+ return fc_req;
+}
-static int zfcp_fc_send_gpn_ft(struct zfcp_fc_gpn_ft *gpn_ft,
+static int zfcp_fc_send_gpn_ft(struct zfcp_fc_req *fc_req,
struct zfcp_adapter *adapter, int max_bytes)
{
- struct zfcp_fsf_ct_els *ct = &gpn_ft->ct;
- struct zfcp_fc_gpn_ft_req *req = sg_virt(&gpn_ft->sg_req);
+ struct zfcp_fsf_ct_els *ct_els = &fc_req->ct_els;
+ struct zfcp_fc_gpn_ft_req *req = &fc_req->u.gpn_ft.req;
DECLARE_COMPLETION_ONSTACK(completion);
int ret;
- /* prepare CT IU for GPN_FT */
- req->ct_hdr.ct_rev = FC_CT_REV;
- req->ct_hdr.ct_fs_type = FC_FST_DIR;
- req->ct_hdr.ct_fs_subtype = FC_NS_SUBTYPE;
- req->ct_hdr.ct_options = 0;
- req->ct_hdr.ct_cmd = FC_NS_GPN_FT;
- req->ct_hdr.ct_mr_size = max_bytes / 4;
- req->gpn_ft.fn_domain_id_scope = 0;
- req->gpn_ft.fn_area_id_scope = 0;
+ zfcp_fc_ct_ns_init(&req->ct_hdr, FC_NS_GPN_FT, max_bytes);
req->gpn_ft.fn_fc4_type = FC_TYPE_FCP;
- /* prepare zfcp_send_ct */
- ct->handler = zfcp_fc_complete;
- ct->handler_data = &completion;
- ct->req = &gpn_ft->sg_req;
- ct->resp = gpn_ft->sg_resp;
+ ct_els->handler = zfcp_fc_complete;
+ ct_els->handler_data = &completion;
+ ct_els->req = &fc_req->sg_req;
+ ct_els->resp = &fc_req->sg_rsp;
- ret = zfcp_fsf_send_ct(&adapter->gs->ds, ct, NULL,
+ ret = zfcp_fsf_send_ct(&adapter->gs->ds, ct_els, NULL,
ZFCP_FC_CTELS_TMO);
if (!ret)
wait_for_completion(&completion);
list_move_tail(&port->list, lh);
}
-static int zfcp_fc_eval_gpn_ft(struct zfcp_fc_gpn_ft *gpn_ft,
+static int zfcp_fc_eval_gpn_ft(struct zfcp_fc_req *fc_req,
struct zfcp_adapter *adapter, int max_entries)
{
- struct zfcp_fsf_ct_els *ct = &gpn_ft->ct;
- struct scatterlist *sg = gpn_ft->sg_resp;
+ struct zfcp_fsf_ct_els *ct_els = &fc_req->ct_els;
+ struct scatterlist *sg = &fc_req->sg_rsp;
struct fc_ct_hdr *hdr = sg_virt(sg);
struct fc_gpn_ft_resp *acc = sg_virt(sg);
struct zfcp_port *port, *tmp;
u32 d_id;
int ret = 0, x, last = 0;
- if (ct->status)
+ if (ct_els->status)
return -EIO;
if (hdr->ct_cmd != FC_FS_ACC) {
struct zfcp_adapter *adapter = container_of(work, struct zfcp_adapter,
scan_work);
int ret, i;
- struct zfcp_fc_gpn_ft *gpn_ft;
+ struct zfcp_fc_req *fc_req;
int chain, max_entries, buf_num, max_bytes;
chain = adapter->adapter_features & FSF_FEATURE_ELS_CT_CHAINED_SBALS;
if (zfcp_fc_wka_port_get(&adapter->gs->ds))
return;
- gpn_ft = zfcp_alloc_sg_env(buf_num);
- if (!gpn_ft)
+ fc_req = zfcp_alloc_sg_env(buf_num);
+ if (!fc_req)
goto out;
for (i = 0; i < 3; i++) {
- ret = zfcp_fc_send_gpn_ft(gpn_ft, adapter, max_bytes);
+ ret = zfcp_fc_send_gpn_ft(fc_req, adapter, max_bytes);
if (!ret) {
- ret = zfcp_fc_eval_gpn_ft(gpn_ft, adapter, max_entries);
+ ret = zfcp_fc_eval_gpn_ft(fc_req, adapter, max_entries);
if (ret == -EAGAIN)
ssleep(1);
else
break;
}
}
- zfcp_free_sg_env(gpn_ft, buf_num);
+ zfcp_sg_free_table(&fc_req->sg_rsp, buf_num);
+ kmem_cache_free(zfcp_fc_req_cache, fc_req);
out:
zfcp_fc_wka_port_put(&adapter->gs->ds);
}
+static int zfcp_fc_gspn(struct zfcp_adapter *adapter,
+ struct zfcp_fc_req *fc_req)
+{
+ DECLARE_COMPLETION_ONSTACK(completion);
+ char devno[] = "DEVNO:";
+ struct zfcp_fsf_ct_els *ct_els = &fc_req->ct_els;
+ struct zfcp_fc_gspn_req *gspn_req = &fc_req->u.gspn.req;
+ struct zfcp_fc_gspn_rsp *gspn_rsp = &fc_req->u.gspn.rsp;
+ int ret;
+
+ zfcp_fc_ct_ns_init(&gspn_req->ct_hdr, FC_NS_GSPN_ID,
+ FC_SYMBOLIC_NAME_SIZE);
+ hton24(gspn_req->gspn.fp_fid, fc_host_port_id(adapter->scsi_host));
+
+ sg_init_one(&fc_req->sg_req, gspn_req, sizeof(*gspn_req));
+ sg_init_one(&fc_req->sg_rsp, gspn_rsp, sizeof(*gspn_rsp));
+
+ ct_els->handler = zfcp_fc_complete;
+ ct_els->handler_data = &completion;
+ ct_els->req = &fc_req->sg_req;
+ ct_els->resp = &fc_req->sg_rsp;
+
+ ret = zfcp_fsf_send_ct(&adapter->gs->ds, ct_els, NULL,
+ ZFCP_FC_CTELS_TMO);
+ if (ret)
+ return ret;
+
+ wait_for_completion(&completion);
+ if (ct_els->status)
+ return ct_els->status;
+
+ if (fc_host_port_type(adapter->scsi_host) == FC_PORTTYPE_NPIV &&
+ !(strstr(gspn_rsp->gspn.fp_name, devno)))
+ snprintf(fc_host_symbolic_name(adapter->scsi_host),
+ FC_SYMBOLIC_NAME_SIZE, "%s%s %s NAME: %s",
+ gspn_rsp->gspn.fp_name, devno,
+ dev_name(&adapter->ccw_device->dev),
+ init_utsname()->nodename);
+ else
+ strlcpy(fc_host_symbolic_name(adapter->scsi_host),
+ gspn_rsp->gspn.fp_name, FC_SYMBOLIC_NAME_SIZE);
+
+ return 0;
+}
+
+static void zfcp_fc_rspn(struct zfcp_adapter *adapter,
+ struct zfcp_fc_req *fc_req)
+{
+ DECLARE_COMPLETION_ONSTACK(completion);
+ struct Scsi_Host *shost = adapter->scsi_host;
+ struct zfcp_fsf_ct_els *ct_els = &fc_req->ct_els;
+ struct zfcp_fc_rspn_req *rspn_req = &fc_req->u.rspn.req;
+ struct fc_ct_hdr *rspn_rsp = &fc_req->u.rspn.rsp;
+ int ret, len;
+
+ zfcp_fc_ct_ns_init(&rspn_req->ct_hdr, FC_NS_RSPN_ID,
+ FC_SYMBOLIC_NAME_SIZE);
+ hton24(rspn_req->rspn.fr_fid.fp_fid, fc_host_port_id(shost));
+ len = strlcpy(rspn_req->rspn.fr_name, fc_host_symbolic_name(shost),
+ FC_SYMBOLIC_NAME_SIZE);
+ rspn_req->rspn.fr_name_len = len;
+
+ sg_init_one(&fc_req->sg_req, rspn_req, sizeof(*rspn_req));
+ sg_init_one(&fc_req->sg_rsp, rspn_rsp, sizeof(*rspn_rsp));
+
+ ct_els->handler = zfcp_fc_complete;
+ ct_els->handler_data = &completion;
+ ct_els->req = &fc_req->sg_req;
+ ct_els->resp = &fc_req->sg_rsp;
+
+ ret = zfcp_fsf_send_ct(&adapter->gs->ds, ct_els, NULL,
+ ZFCP_FC_CTELS_TMO);
+ if (!ret)
+ wait_for_completion(&completion);
+}
+
+/**
+ * zfcp_fc_sym_name_update - Retrieve and update the symbolic port name
+ * @work: ns_up_work of the adapter where to update the symbolic port name
+ *
+ * Retrieve the current symbolic port name that may have been set by
+ * the hardware using the GSPN request and update the fc_host
+ * symbolic_name sysfs attribute. When running in NPIV mode (and hence
+ * the port name is unique for this system), update the symbolic port
+ * name to add Linux specific information and update the FC nameserver
+ * using the RSPN request.
+ */
+void zfcp_fc_sym_name_update(struct work_struct *work)
+{
+ struct zfcp_adapter *adapter = container_of(work, struct zfcp_adapter,
+ ns_up_work);
+ int ret;
+ struct zfcp_fc_req *fc_req;
+
+ if (fc_host_port_type(adapter->scsi_host) != FC_PORTTYPE_NPORT &&
+ fc_host_port_type(adapter->scsi_host) != FC_PORTTYPE_NPIV)
+ return;
+
+ fc_req = kmem_cache_zalloc(zfcp_fc_req_cache, GFP_KERNEL);
+ if (!fc_req)
+ return;
+
+ ret = zfcp_fc_wka_port_get(&adapter->gs->ds);
+ if (ret)
+ goto out_free;
+
+ ret = zfcp_fc_gspn(adapter, fc_req);
+ if (ret || fc_host_port_type(adapter->scsi_host) != FC_PORTTYPE_NPIV)
+ goto out_ds_put;
+
+ memset(fc_req, 0, sizeof(*fc_req));
+ zfcp_fc_rspn(adapter, fc_req);
+
+out_ds_put:
+ zfcp_fc_wka_port_put(&adapter->gs->ds);
+out_free:
+ kmem_cache_free(zfcp_fc_req_cache, fc_req);
+}
+
static void zfcp_fc_ct_els_job_handler(void *data)
{
struct fc_bsg_job *job = data;
} __packed;
/**
- * struct zfcp_fc_gid_pn_resp - container for ct header plus gid_pn response
+ * struct zfcp_fc_gid_pn_rsp - container for ct header plus gid_pn response
* @ct_hdr: FC GS common transport header
* @gid_pn: GID_PN response
*/
-struct zfcp_fc_gid_pn_resp {
+struct zfcp_fc_gid_pn_rsp {
struct fc_ct_hdr ct_hdr;
struct fc_gid_pn_resp gid_pn;
} __packed;
-/**
- * struct zfcp_fc_gid_pn - everything required in zfcp for gid_pn request
- * @ct: data passed to zfcp_fsf for issuing fsf request
- * @sg_req: scatterlist entry for request data
- * @sg_resp: scatterlist entry for response data
- * @gid_pn_req: GID_PN request data
- * @gid_pn_resp: GID_PN response data
- */
-struct zfcp_fc_gid_pn {
- struct zfcp_fsf_ct_els ct;
- struct scatterlist sg_req;
- struct scatterlist sg_resp;
- struct zfcp_fc_gid_pn_req gid_pn_req;
- struct zfcp_fc_gid_pn_resp gid_pn_resp;
- struct zfcp_port *port;
-};
-
/**
* struct zfcp_fc_gpn_ft - container for ct header plus gpn_ft request
* @ct_hdr: FC GS common transport header
} __packed;
/**
- * struct zfcp_fc_gpn_ft_resp - container for ct header plus gpn_ft response
+ * struct zfcp_fc_gspn_req - container for ct header plus GSPN_ID request
* @ct_hdr: FC GS common transport header
- * @gpn_ft: Array of gpn_ft response data to fill one memory page
+ * @gspn: GSPN_ID request
*/
-struct zfcp_fc_gpn_ft_resp {
+struct zfcp_fc_gspn_req {
struct fc_ct_hdr ct_hdr;
- struct fc_gpn_ft_resp gpn_ft[ZFCP_FC_GPN_FT_ENT_PAGE];
+ struct fc_gid_pn_resp gspn;
} __packed;
/**
- * struct zfcp_fc_gpn_ft - zfcp data for gpn_ft request
- * @ct: data passed to zfcp_fsf for issuing fsf request
- * @sg_req: scatter list entry for gpn_ft request
- * @sg_resp: scatter list entries for gpn_ft responses (per memory page)
+ * struct zfcp_fc_gspn_rsp - container for ct header plus GSPN_ID response
+ * @ct_hdr: FC GS common transport header
+ * @gspn: GSPN_ID response
+ * @name: The name string of the GSPN_ID response
*/
-struct zfcp_fc_gpn_ft {
- struct zfcp_fsf_ct_els ct;
- struct scatterlist sg_req;
- struct scatterlist sg_resp[ZFCP_FC_GPN_FT_NUM_BUFS];
-};
+struct zfcp_fc_gspn_rsp {
+ struct fc_ct_hdr ct_hdr;
+ struct fc_gspn_resp gspn;
+ char name[FC_SYMBOLIC_NAME_SIZE];
+} __packed;
/**
- * struct zfcp_fc_els_adisc - everything required in zfcp for issuing ELS ADISC
- * @els: data required for issuing els fsf command
- * @req: scatterlist entry for ELS ADISC request
- * @resp: scatterlist entry for ELS ADISC response
- * @adisc_req: ELS ADISC request data
- * @adisc_resp: ELS ADISC response data
+ * struct zfcp_fc_rspn_req - container for ct header plus RSPN_ID request
+ * @ct_hdr: FC GS common transport header
+ * @rspn: RSPN_ID request
+ * @name: The name string of the RSPN_ID request
*/
-struct zfcp_fc_els_adisc {
- struct zfcp_fsf_ct_els els;
- struct scatterlist req;
- struct scatterlist resp;
- struct fc_els_adisc adisc_req;
- struct fc_els_adisc adisc_resp;
+struct zfcp_fc_rspn_req {
+ struct fc_ct_hdr ct_hdr;
+ struct fc_ns_rspn rspn;
+ char name[FC_SYMBOLIC_NAME_SIZE];
+} __packed;
+
+/**
+ * struct zfcp_fc_req - Container for FC ELS and CT requests sent from zfcp
+ * @ct_els: data required for issuing fsf command
+ * @sg_req: scatterlist entry for request data
+ * @sg_rsp: scatterlist entry for response data
+ * @u: request specific data
+ */
+struct zfcp_fc_req {
+ struct zfcp_fsf_ct_els ct_els;
+ struct scatterlist sg_req;
+ struct scatterlist sg_rsp;
+ union {
+ struct {
+ struct fc_els_adisc req;
+ struct fc_els_adisc rsp;
+ } adisc;
+ struct {
+ struct zfcp_fc_gid_pn_req req;
+ struct zfcp_fc_gid_pn_rsp rsp;
+ } gid_pn;
+ struct {
+ struct scatterlist sg_rsp2[ZFCP_FC_GPN_FT_NUM_BUFS - 1];
+ struct zfcp_fc_gpn_ft_req req;
+ } gpn_ft;
+ struct {
+ struct zfcp_fc_gspn_req req;
+ struct zfcp_fc_gspn_rsp rsp;
+ } gspn;
+ struct {
+ struct zfcp_fc_rspn_req req;
+ struct fc_ct_hdr rsp;
+ } rspn;
+ } u;
};
/**
* zfcp_fc_scsi_to_fcp - setup FCP command with data from scsi_cmnd
* @fcp: fcp_cmnd to setup
* @scsi: scsi_cmnd where to get LUN, task attributes/flags and CDB
+ * @tm: task management flags to setup task management command
*/
static inline
-void zfcp_fc_scsi_to_fcp(struct fcp_cmnd *fcp, struct scsi_cmnd *scsi)
+void zfcp_fc_scsi_to_fcp(struct fcp_cmnd *fcp, struct scsi_cmnd *scsi,
+ u8 tm_flags)
{
char tag[2];
int_to_scsilun(scsi->device->lun, (struct scsi_lun *) &fcp->fc_lun);
+ if (unlikely(tm_flags)) {
+ fcp->fc_tm_flags = tm_flags;
+ return;
+ }
+
if (scsi_populate_tag_msg(scsi, tag)) {
switch (tag[0]) {
case MSG_ORDERED_TAG:
fcp->fc_dl += fcp->fc_dl / scsi->device->sector_size * 8;
}
-/**
- * zfcp_fc_fcp_tm - setup FCP command as task management command
- * @fcp: fcp_cmnd to setup
- * @dev: scsi_device where to send the task management command
- * @tm: task management flags to setup tm command
- */
-static inline
-void zfcp_fc_fcp_tm(struct fcp_cmnd *fcp, struct scsi_device *dev, u8 tm_flags)
-{
- int_to_scsilun(dev->lun, (struct scsi_lun *) &fcp->fc_lun);
- fcp->fc_tm_flags |= tm_flags;
-}
-
/**
* zfcp_fc_evap_fcp_rsp - evaluate FCP RSP IU and update scsi_cmnd accordingly
* @fcp_rsp: FCP RSP IU to evaluate
#include "zfcp_qdio.h"
#include "zfcp_reqlist.h"
+struct kmem_cache *zfcp_fsf_qtcb_cache;
+
static void zfcp_fsf_request_timeout_handler(unsigned long data)
{
struct zfcp_adapter *adapter = (struct zfcp_adapter *) data;
}
if (likely(req->qtcb))
- kmem_cache_free(zfcp_data.qtcb_cache, req->qtcb);
+ kmem_cache_free(zfcp_fsf_qtcb_cache, req->qtcb);
kfree(req);
}
if (req->status & ZFCP_STATUS_FSFREQ_DISMISSED) {
zfcp_dbf_hba_fsf_uss("fssrh_1", req);
- mempool_free(sr_buf, adapter->pool.status_read_data);
+ mempool_free(virt_to_page(sr_buf), adapter->pool.sr_data);
zfcp_fsf_req_free(req);
return;
}
break;
}
- mempool_free(sr_buf, adapter->pool.status_read_data);
+ mempool_free(virt_to_page(sr_buf), adapter->pool.sr_data);
zfcp_fsf_req_free(req);
atomic_inc(&adapter->stat_miss);
if (likely(pool))
qtcb = mempool_alloc(pool, GFP_ATOMIC);
else
- qtcb = kmem_cache_alloc(zfcp_data.qtcb_cache, GFP_ATOMIC);
+ qtcb = kmem_cache_alloc(zfcp_fsf_qtcb_cache, GFP_ATOMIC);
if (unlikely(!qtcb))
return NULL;
struct zfcp_adapter *adapter = qdio->adapter;
struct zfcp_fsf_req *req;
struct fsf_status_read_buffer *sr_buf;
+ struct page *page;
int retval = -EIO;
spin_lock_irq(&qdio->req_q_lock);
goto out;
}
- sr_buf = mempool_alloc(adapter->pool.status_read_data, GFP_ATOMIC);
- if (!sr_buf) {
+ page = mempool_alloc(adapter->pool.sr_data, GFP_ATOMIC);
+ if (!page) {
retval = -ENOMEM;
goto failed_buf;
}
+ sr_buf = page_address(page);
memset(sr_buf, 0, sizeof(*sr_buf));
req->data = sr_buf;
failed_req_send:
req->data = NULL;
- mempool_free(sr_buf, adapter->pool.status_read_data);
+ mempool_free(virt_to_page(sr_buf), adapter->pool.sr_data);
failed_buf:
zfcp_dbf_hba_fsf_uss("fssr__1", req);
zfcp_fsf_req_free(req);
SBAL_FLAGS0_TYPE_READ,
qdio->adapter->pool.erp_req);
- if (unlikely(IS_ERR(req))) {
+ if (IS_ERR(req)) {
retval = PTR_ERR(req);
goto out;
}
SBAL_FLAGS0_TYPE_READ,
qdio->adapter->pool.erp_req);
- if (unlikely(IS_ERR(req))) {
+ if (IS_ERR(req)) {
retval = PTR_ERR(req);
goto out;
}
zfcp_fsf_set_data_dir(scsi_cmnd, &io->data_direction);
fcp_cmnd = (struct fcp_cmnd *) &req->qtcb->bottom.io.fcp_cmnd;
- zfcp_fc_scsi_to_fcp(fcp_cmnd, scsi_cmnd);
+ zfcp_fc_scsi_to_fcp(fcp_cmnd, scsi_cmnd, 0);
if (scsi_prot_sg_count(scsi_cmnd)) {
zfcp_qdio_set_data_div(qdio, &req->qdio_req,
goto out;
}
- req->status |= ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT;
req->data = scmnd;
req->handler = zfcp_fsf_fcp_task_mgmt_handler;
req->qtcb->header.lun_handle = zfcp_sdev->lun_handle;
zfcp_qdio_set_sbale_last(qdio, &req->qdio_req);
fcp_cmnd = (struct fcp_cmnd *) &req->qtcb->bottom.io.fcp_cmnd;
- zfcp_fc_fcp_tm(fcp_cmnd, scmnd->device, tm_flags);
+ zfcp_fc_scsi_to_fcp(fcp_cmnd, scmnd, tm_flags);
zfcp_fsf_start_timer(req, ZFCP_SCSI_ER_TIMEOUT);
if (!zfcp_fsf_req_send(req))
return SUCCESS;
}
-int zfcp_adapter_scsi_register(struct zfcp_adapter *adapter)
+struct scsi_transport_template *zfcp_scsi_transport_template;
+
+static struct scsi_host_template zfcp_scsi_host_template = {
+ .module = THIS_MODULE,
+ .name = "zfcp",
+ .queuecommand = zfcp_scsi_queuecommand,
+ .eh_abort_handler = zfcp_scsi_eh_abort_handler,
+ .eh_device_reset_handler = zfcp_scsi_eh_device_reset_handler,
+ .eh_target_reset_handler = zfcp_scsi_eh_target_reset_handler,
+ .eh_host_reset_handler = zfcp_scsi_eh_host_reset_handler,
+ .slave_alloc = zfcp_scsi_slave_alloc,
+ .slave_configure = zfcp_scsi_slave_configure,
+ .slave_destroy = zfcp_scsi_slave_destroy,
+ .change_queue_depth = zfcp_scsi_change_queue_depth,
+ .proc_name = "zfcp",
+ .can_queue = 4096,
+ .this_id = -1,
+ .sg_tablesize = ZFCP_QDIO_MAX_SBALES_PER_REQ,
+ .max_sectors = (ZFCP_QDIO_MAX_SBALES_PER_REQ * 8),
+ .dma_boundary = ZFCP_QDIO_SBALE_LEN - 1,
+ .cmd_per_lun = 1,
+ .use_clustering = 1,
+ .shost_attrs = zfcp_sysfs_shost_attrs,
+ .sdev_attrs = zfcp_sysfs_sdev_attrs,
+};
+
+/**
+ * zfcp_scsi_adapter_register - Register SCSI and FC host with SCSI midlayer
+ * @adapter: The zfcp adapter to register with the SCSI midlayer
+ */
+int zfcp_scsi_adapter_register(struct zfcp_adapter *adapter)
{
struct ccw_dev_id dev_id;
ccw_device_get_id(adapter->ccw_device, &dev_id);
/* register adapter as SCSI host with mid layer of SCSI stack */
- adapter->scsi_host = scsi_host_alloc(&zfcp_data.scsi_host_template,
+ adapter->scsi_host = scsi_host_alloc(&zfcp_scsi_host_template,
sizeof (struct zfcp_adapter *));
if (!adapter->scsi_host) {
dev_err(&adapter->ccw_device->dev,
adapter->scsi_host->max_channel = 0;
adapter->scsi_host->unique_id = dev_id.devno;
adapter->scsi_host->max_cmd_len = 16; /* in struct fcp_cmnd */
- adapter->scsi_host->transportt = zfcp_data.scsi_transport_template;
+ adapter->scsi_host->transportt = zfcp_scsi_transport_template;
adapter->scsi_host->hostdata[0] = (unsigned long) adapter;
return 0;
}
-void zfcp_adapter_scsi_unregister(struct zfcp_adapter *adapter)
+/**
+ * zfcp_scsi_adapter_unregister - Unregister SCSI and FC host from SCSI midlayer
+ * @adapter: The zfcp adapter to unregister.
+ */
+void zfcp_scsi_adapter_unregister(struct zfcp_adapter *adapter)
{
struct Scsi_Host *shost;
struct zfcp_port *port;
scsi_remove_host(shost);
scsi_host_put(shost);
adapter->scsi_host = NULL;
-
- return;
}
static struct fc_host_statistics*
/* no functions registered for following dynamic attributes but
directly set by LLDD */
.show_host_port_type = 1,
+ .show_host_symbolic_name = 1,
.show_host_speed = 1,
.show_host_port_id = 1,
.dd_bsg_size = sizeof(struct zfcp_fsf_ct_els),
};
-
-struct zfcp_data zfcp_data = {
- .scsi_host_template = {
- .name = "zfcp",
- .module = THIS_MODULE,
- .proc_name = "zfcp",
- .change_queue_depth = zfcp_scsi_change_queue_depth,
- .slave_alloc = zfcp_scsi_slave_alloc,
- .slave_configure = zfcp_scsi_slave_configure,
- .slave_destroy = zfcp_scsi_slave_destroy,
- .queuecommand = zfcp_scsi_queuecommand,
- .eh_abort_handler = zfcp_scsi_eh_abort_handler,
- .eh_device_reset_handler = zfcp_scsi_eh_device_reset_handler,
- .eh_target_reset_handler = zfcp_scsi_eh_target_reset_handler,
- .eh_host_reset_handler = zfcp_scsi_eh_host_reset_handler,
- .can_queue = 4096,
- .this_id = -1,
- .sg_tablesize = ZFCP_QDIO_MAX_SBALES_PER_REQ,
- .cmd_per_lun = 1,
- .use_clustering = 1,
- .sdev_attrs = zfcp_sysfs_sdev_attrs,
- .max_sectors = (ZFCP_QDIO_MAX_SBALES_PER_REQ * 8),
- .dma_boundary = ZFCP_QDIO_SBALE_LEN - 1,
- .shost_attrs = zfcp_sysfs_shost_attrs,
- },
-};
source "drivers/scsi/cxgbi/Kconfig"
source "drivers/scsi/bnx2i/Kconfig"
+source "drivers/scsi/bnx2fc/Kconfig"
source "drivers/scsi/be2iscsi/Kconfig"
config SGIWD93_SCSI
obj-$(CONFIG_LIBFCOE) += fcoe/
obj-$(CONFIG_FCOE) += fcoe/
obj-$(CONFIG_FCOE_FNIC) += fnic/
+obj-$(CONFIG_SCSI_BNX2X_FCOE) += libfc/ fcoe/ bnx2fc/
obj-$(CONFIG_ISCSI_TCP) += libiscsi.o libiscsi_tcp.o iscsi_tcp.o
obj-$(CONFIG_INFINIBAND_ISER) += libiscsi.o
obj-$(CONFIG_ISCSI_BOOT_SYSFS) += iscsi_boot_sysfs.o
{
struct NCR5380_hostdata *hostdata = (struct NCR5380_hostdata *) instance->hostdata;
- cancel_delayed_work(&hostdata->coroutine);
- flush_scheduled_work();
+ cancel_delayed_work_sync(&hostdata->coroutine);
}
/**
int poll_count = 0;
arcmsr_free_sysfs_attr(acb);
scsi_remove_host(host);
- flush_scheduled_work();
+ flush_work_sync(&acb->arcmsr_do_message_isr_bh);
del_timer_sync(&acb->eternal_timer);
arcmsr_disable_outbound_ints(acb);
arcmsr_stop_adapter_bgrb(acb);
(struct AdapterControlBlock *)host->hostdata;
del_timer_sync(&acb->eternal_timer);
arcmsr_disable_outbound_ints(acb);
- flush_scheduled_work();
+ flush_work_sync(&acb->arcmsr_do_message_isr_bh);
arcmsr_stop_adapter_bgrb(acb);
arcmsr_flush_adapter_cache(acb);
}
}
/**
- * beiscsi_conn_get_param - get the iscsi parameter
- * @cls_conn: pointer to iscsi cls conn
+ * beiscsi_ep_get_param - get the iscsi parameter
+ * @ep: pointer to iscsi ep
* @param: parameter type identifier
* @buf: buffer pointer
*
* returns iscsi parameter
*/
-int beiscsi_conn_get_param(struct iscsi_cls_conn *cls_conn,
+int beiscsi_ep_get_param(struct iscsi_endpoint *ep,
enum iscsi_param param, char *buf)
{
- struct beiscsi_endpoint *beiscsi_ep;
- struct iscsi_conn *conn = cls_conn->dd_data;
- struct beiscsi_conn *beiscsi_conn = conn->dd_data;
+ struct beiscsi_endpoint *beiscsi_ep = ep->dd_data;
int len = 0;
SE_DEBUG(DBG_LVL_8, "In beiscsi_conn_get_param, param= %d\n", param);
- beiscsi_ep = beiscsi_conn->ep;
- if (!beiscsi_ep) {
- SE_DEBUG(DBG_LVL_1,
- "In beiscsi_conn_get_param , no beiscsi_ep\n");
- return -ENODEV;
- }
switch (param) {
case ISCSI_PARAM_CONN_PORT:
len = sprintf(buf, "%pI6\n", &beiscsi_ep->dst6_addr);
break;
default:
- return iscsi_conn_get_param(cls_conn, param, buf);
+ return -ENOSYS;
}
return len;
}
struct iscsi_cls_conn *cls_conn,
uint64_t transport_fd, int is_leading);
-int beiscsi_conn_get_param(struct iscsi_cls_conn *cls_conn,
- enum iscsi_param param, char *buf);
+int beiscsi_ep_get_param(struct iscsi_endpoint *ep, enum iscsi_param param,
+ char *buf);
int beiscsi_get_host_param(struct Scsi_Host *shost,
enum iscsi_host_param param, char *buf);
.bind_conn = beiscsi_conn_bind,
.destroy_conn = iscsi_conn_teardown,
.set_param = beiscsi_set_param,
- .get_conn_param = beiscsi_conn_get_param,
+ .get_conn_param = iscsi_conn_get_param,
.get_session_param = iscsi_session_get_param,
.get_host_param = beiscsi_get_host_param,
.start_conn = beiscsi_conn_start,
.alloc_pdu = beiscsi_alloc_pdu,
.parse_pdu_itt = beiscsi_parse_pdu,
.get_stats = beiscsi_conn_get_stats,
+ .get_ep_param = beiscsi_ep_get_param,
.ep_connect = beiscsi_ep_connect,
.ep_poll = beiscsi_ep_poll,
.ep_disconnect = beiscsi_ep_disconnect,
--- /dev/null
+#ifndef __57XX_FCOE_HSI_LINUX_LE__
+#define __57XX_FCOE_HSI_LINUX_LE__
+
+/*
+ * common data for all protocols
+ */
+struct b577xx_doorbell_hdr {
+ u8 header;
+#define B577XX_DOORBELL_HDR_RX (0x1<<0)
+#define B577XX_DOORBELL_HDR_RX_SHIFT 0
+#define B577XX_DOORBELL_HDR_DB_TYPE (0x1<<1)
+#define B577XX_DOORBELL_HDR_DB_TYPE_SHIFT 1
+#define B577XX_DOORBELL_HDR_DPM_SIZE (0x3<<2)
+#define B577XX_DOORBELL_HDR_DPM_SIZE_SHIFT 2
+#define B577XX_DOORBELL_HDR_CONN_TYPE (0xF<<4)
+#define B577XX_DOORBELL_HDR_CONN_TYPE_SHIFT 4
+};
+
+/*
+ * doorbell message sent to the chip
+ */
+struct b577xx_doorbell_set_prod {
+#if defined(__BIG_ENDIAN)
+ u16 prod;
+ u8 zero_fill1;
+ struct b577xx_doorbell_hdr header;
+#elif defined(__LITTLE_ENDIAN)
+ struct b577xx_doorbell_hdr header;
+ u8 zero_fill1;
+ u16 prod;
+#endif
+};
+
+
+struct regpair {
+ __le32 lo;
+ __le32 hi;
+};
+
+
+/*
+ * Fixed size structure in order to plant it in Union structure
+ */
+struct fcoe_abts_rsp_union {
+ u32 r_ctl;
+ u32 abts_rsp_payload[7];
+};
+
+
+/*
+ * 4 regs size
+ */
+struct fcoe_bd_ctx {
+ u32 buf_addr_hi;
+ u32 buf_addr_lo;
+#if defined(__BIG_ENDIAN)
+ u16 rsrv0;
+ u16 buf_len;
+#elif defined(__LITTLE_ENDIAN)
+ u16 buf_len;
+ u16 rsrv0;
+#endif
+#if defined(__BIG_ENDIAN)
+ u16 rsrv1;
+ u16 flags;
+#elif defined(__LITTLE_ENDIAN)
+ u16 flags;
+ u16 rsrv1;
+#endif
+};
+
+
+struct fcoe_cleanup_flow_info {
+#if defined(__BIG_ENDIAN)
+ u16 reserved1;
+ u16 task_id;
+#elif defined(__LITTLE_ENDIAN)
+ u16 task_id;
+ u16 reserved1;
+#endif
+ u32 reserved2[7];
+};
+
+
+struct fcoe_fcp_cmd_payload {
+ u32 opaque[8];
+};
+
+struct fcoe_fc_hdr {
+#if defined(__BIG_ENDIAN)
+ u8 cs_ctl;
+ u8 s_id[3];
+#elif defined(__LITTLE_ENDIAN)
+ u8 s_id[3];
+ u8 cs_ctl;
+#endif
+#if defined(__BIG_ENDIAN)
+ u8 r_ctl;
+ u8 d_id[3];
+#elif defined(__LITTLE_ENDIAN)
+ u8 d_id[3];
+ u8 r_ctl;
+#endif
+#if defined(__BIG_ENDIAN)
+ u8 seq_id;
+ u8 df_ctl;
+ u16 seq_cnt;
+#elif defined(__LITTLE_ENDIAN)
+ u16 seq_cnt;
+ u8 df_ctl;
+ u8 seq_id;
+#endif
+#if defined(__BIG_ENDIAN)
+ u8 type;
+ u8 f_ctl[3];
+#elif defined(__LITTLE_ENDIAN)
+ u8 f_ctl[3];
+ u8 type;
+#endif
+ u32 parameters;
+#if defined(__BIG_ENDIAN)
+ u16 ox_id;
+ u16 rx_id;
+#elif defined(__LITTLE_ENDIAN)
+ u16 rx_id;
+ u16 ox_id;
+#endif
+};
+
+struct fcoe_fc_frame {
+ struct fcoe_fc_hdr fc_hdr;
+ u32 reserved0[2];
+};
+
+union fcoe_cmd_flow_info {
+ struct fcoe_fcp_cmd_payload fcp_cmd_payload;
+ struct fcoe_fc_frame mp_fc_frame;
+};
+
+
+
+struct fcoe_fcp_rsp_flags {
+ u8 flags;
+#define FCOE_FCP_RSP_FLAGS_FCP_RSP_LEN_VALID (0x1<<0)
+#define FCOE_FCP_RSP_FLAGS_FCP_RSP_LEN_VALID_SHIFT 0
+#define FCOE_FCP_RSP_FLAGS_FCP_SNS_LEN_VALID (0x1<<1)
+#define FCOE_FCP_RSP_FLAGS_FCP_SNS_LEN_VALID_SHIFT 1
+#define FCOE_FCP_RSP_FLAGS_FCP_RESID_OVER (0x1<<2)
+#define FCOE_FCP_RSP_FLAGS_FCP_RESID_OVER_SHIFT 2
+#define FCOE_FCP_RSP_FLAGS_FCP_RESID_UNDER (0x1<<3)
+#define FCOE_FCP_RSP_FLAGS_FCP_RESID_UNDER_SHIFT 3
+#define FCOE_FCP_RSP_FLAGS_FCP_CONF_REQ (0x1<<4)
+#define FCOE_FCP_RSP_FLAGS_FCP_CONF_REQ_SHIFT 4
+#define FCOE_FCP_RSP_FLAGS_FCP_BIDI_FLAGS (0x7<<5)
+#define FCOE_FCP_RSP_FLAGS_FCP_BIDI_FLAGS_SHIFT 5
+};
+
+
+struct fcoe_fcp_rsp_payload {
+ struct regpair reserved0;
+ u32 fcp_resid;
+#if defined(__BIG_ENDIAN)
+ u16 retry_delay_timer;
+ struct fcoe_fcp_rsp_flags fcp_flags;
+ u8 scsi_status_code;
+#elif defined(__LITTLE_ENDIAN)
+ u8 scsi_status_code;
+ struct fcoe_fcp_rsp_flags fcp_flags;
+ u16 retry_delay_timer;
+#endif
+ u32 fcp_rsp_len;
+ u32 fcp_sns_len;
+};
+
+
+/*
+ * Fixed size structure in order to plant it in Union structure
+ */
+struct fcoe_fcp_rsp_union {
+ struct fcoe_fcp_rsp_payload payload;
+ struct regpair reserved0;
+};
+
+
+struct fcoe_fcp_xfr_rdy_payload {
+ u32 burst_len;
+ u32 data_ro;
+};
+
+struct fcoe_read_flow_info {
+ struct fcoe_fc_hdr fc_data_in_hdr;
+ u32 reserved[2];
+};
+
+struct fcoe_write_flow_info {
+ struct fcoe_fc_hdr fc_data_out_hdr;
+ struct fcoe_fcp_xfr_rdy_payload fcp_xfr_payload;
+};
+
+union fcoe_rsp_flow_info {
+ struct fcoe_fcp_rsp_union fcp_rsp;
+ struct fcoe_abts_rsp_union abts_rsp;
+};
+
+/*
+ * 32 bytes used for general purposes
+ */
+union fcoe_general_task_ctx {
+ union fcoe_cmd_flow_info cmd_info;
+ struct fcoe_read_flow_info read_info;
+ struct fcoe_write_flow_info write_info;
+ union fcoe_rsp_flow_info rsp_info;
+ struct fcoe_cleanup_flow_info cleanup_info;
+ u32 comp_info[8];
+};
+
+
+/*
+ * FCoE KCQ CQE parameters
+ */
+union fcoe_kcqe_params {
+ u32 reserved0[4];
+};
+
+/*
+ * FCoE KCQ CQE
+ */
+struct fcoe_kcqe {
+ u32 fcoe_conn_id;
+ u32 completion_status;
+ u32 fcoe_conn_context_id;
+ union fcoe_kcqe_params params;
+#if defined(__BIG_ENDIAN)
+ u8 flags;
+#define FCOE_KCQE_RESERVED0 (0x7<<0)
+#define FCOE_KCQE_RESERVED0_SHIFT 0
+#define FCOE_KCQE_RAMROD_COMPLETION (0x1<<3)
+#define FCOE_KCQE_RAMROD_COMPLETION_SHIFT 3
+#define FCOE_KCQE_LAYER_CODE (0x7<<4)
+#define FCOE_KCQE_LAYER_CODE_SHIFT 4
+#define FCOE_KCQE_LINKED_WITH_NEXT (0x1<<7)
+#define FCOE_KCQE_LINKED_WITH_NEXT_SHIFT 7
+ u8 op_code;
+ u16 qe_self_seq;
+#elif defined(__LITTLE_ENDIAN)
+ u16 qe_self_seq;
+ u8 op_code;
+ u8 flags;
+#define FCOE_KCQE_RESERVED0 (0x7<<0)
+#define FCOE_KCQE_RESERVED0_SHIFT 0
+#define FCOE_KCQE_RAMROD_COMPLETION (0x1<<3)
+#define FCOE_KCQE_RAMROD_COMPLETION_SHIFT 3
+#define FCOE_KCQE_LAYER_CODE (0x7<<4)
+#define FCOE_KCQE_LAYER_CODE_SHIFT 4
+#define FCOE_KCQE_LINKED_WITH_NEXT (0x1<<7)
+#define FCOE_KCQE_LINKED_WITH_NEXT_SHIFT 7
+#endif
+};
+
+/*
+ * FCoE KWQE header
+ */
+struct fcoe_kwqe_header {
+#if defined(__BIG_ENDIAN)
+ u8 flags;
+#define FCOE_KWQE_HEADER_RESERVED0 (0xF<<0)
+#define FCOE_KWQE_HEADER_RESERVED0_SHIFT 0
+#define FCOE_KWQE_HEADER_LAYER_CODE (0x7<<4)
+#define FCOE_KWQE_HEADER_LAYER_CODE_SHIFT 4
+#define FCOE_KWQE_HEADER_RESERVED1 (0x1<<7)
+#define FCOE_KWQE_HEADER_RESERVED1_SHIFT 7
+ u8 op_code;
+#elif defined(__LITTLE_ENDIAN)
+ u8 op_code;
+ u8 flags;
+#define FCOE_KWQE_HEADER_RESERVED0 (0xF<<0)
+#define FCOE_KWQE_HEADER_RESERVED0_SHIFT 0
+#define FCOE_KWQE_HEADER_LAYER_CODE (0x7<<4)
+#define FCOE_KWQE_HEADER_LAYER_CODE_SHIFT 4
+#define FCOE_KWQE_HEADER_RESERVED1 (0x1<<7)
+#define FCOE_KWQE_HEADER_RESERVED1_SHIFT 7
+#endif
+};
+
+/*
+ * FCoE firmware init request 1
+ */
+struct fcoe_kwqe_init1 {
+#if defined(__BIG_ENDIAN)
+ struct fcoe_kwqe_header hdr;
+ u16 num_tasks;
+#elif defined(__LITTLE_ENDIAN)
+ u16 num_tasks;
+ struct fcoe_kwqe_header hdr;
+#endif
+ u32 task_list_pbl_addr_lo;
+ u32 task_list_pbl_addr_hi;
+ u32 dummy_buffer_addr_lo;
+ u32 dummy_buffer_addr_hi;
+#if defined(__BIG_ENDIAN)
+ u16 rq_num_wqes;
+ u16 sq_num_wqes;
+#elif defined(__LITTLE_ENDIAN)
+ u16 sq_num_wqes;
+ u16 rq_num_wqes;
+#endif
+#if defined(__BIG_ENDIAN)
+ u16 cq_num_wqes;
+ u16 rq_buffer_log_size;
+#elif defined(__LITTLE_ENDIAN)
+ u16 rq_buffer_log_size;
+ u16 cq_num_wqes;
+#endif
+#if defined(__BIG_ENDIAN)
+ u8 flags;
+#define FCOE_KWQE_INIT1_LOG_PAGE_SIZE (0xF<<0)
+#define FCOE_KWQE_INIT1_LOG_PAGE_SIZE_SHIFT 0
+#define FCOE_KWQE_INIT1_LOG_CACHED_PBES_PER_FUNC (0x7<<4)
+#define FCOE_KWQE_INIT1_LOG_CACHED_PBES_PER_FUNC_SHIFT 4
+#define FCOE_KWQE_INIT1_RESERVED1 (0x1<<7)
+#define FCOE_KWQE_INIT1_RESERVED1_SHIFT 7
+ u8 num_sessions_log;
+ u16 mtu;
+#elif defined(__LITTLE_ENDIAN)
+ u16 mtu;
+ u8 num_sessions_log;
+ u8 flags;
+#define FCOE_KWQE_INIT1_LOG_PAGE_SIZE (0xF<<0)
+#define FCOE_KWQE_INIT1_LOG_PAGE_SIZE_SHIFT 0
+#define FCOE_KWQE_INIT1_LOG_CACHED_PBES_PER_FUNC (0x7<<4)
+#define FCOE_KWQE_INIT1_LOG_CACHED_PBES_PER_FUNC_SHIFT 4
+#define FCOE_KWQE_INIT1_RESERVED1 (0x1<<7)
+#define FCOE_KWQE_INIT1_RESERVED1_SHIFT 7
+#endif
+};
+
+/*
+ * FCoE firmware init request 2
+ */
+struct fcoe_kwqe_init2 {
+#if defined(__BIG_ENDIAN)
+ struct fcoe_kwqe_header hdr;
+ u16 reserved0;
+#elif defined(__LITTLE_ENDIAN)
+ u16 reserved0;
+ struct fcoe_kwqe_header hdr;
+#endif
+ u32 hash_tbl_pbl_addr_lo;
+ u32 hash_tbl_pbl_addr_hi;
+ u32 t2_hash_tbl_addr_lo;
+ u32 t2_hash_tbl_addr_hi;
+ u32 t2_ptr_hash_tbl_addr_lo;
+ u32 t2_ptr_hash_tbl_addr_hi;
+ u32 free_list_count;
+};
+
+/*
+ * FCoE firmware init request 3
+ */
+struct fcoe_kwqe_init3 {
+#if defined(__BIG_ENDIAN)
+ struct fcoe_kwqe_header hdr;
+ u16 reserved0;
+#elif defined(__LITTLE_ENDIAN)
+ u16 reserved0;
+ struct fcoe_kwqe_header hdr;
+#endif
+ u32 error_bit_map_lo;
+ u32 error_bit_map_hi;
+#if defined(__BIG_ENDIAN)
+ u8 reserved21[3];
+ u8 cached_session_enable;
+#elif defined(__LITTLE_ENDIAN)
+ u8 cached_session_enable;
+ u8 reserved21[3];
+#endif
+ u32 reserved2[4];
+};
+
+/*
+ * FCoE connection offload request 1
+ */
+struct fcoe_kwqe_conn_offload1 {
+#if defined(__BIG_ENDIAN)
+ struct fcoe_kwqe_header hdr;
+ u16 fcoe_conn_id;
+#elif defined(__LITTLE_ENDIAN)
+ u16 fcoe_conn_id;
+ struct fcoe_kwqe_header hdr;
+#endif
+ u32 sq_addr_lo;
+ u32 sq_addr_hi;
+ u32 rq_pbl_addr_lo;
+ u32 rq_pbl_addr_hi;
+ u32 rq_first_pbe_addr_lo;
+ u32 rq_first_pbe_addr_hi;
+#if defined(__BIG_ENDIAN)
+ u16 reserved0;
+ u16 rq_prod;
+#elif defined(__LITTLE_ENDIAN)
+ u16 rq_prod;
+ u16 reserved0;
+#endif
+};
+
+/*
+ * FCoE connection offload request 2
+ */
+struct fcoe_kwqe_conn_offload2 {
+#if defined(__BIG_ENDIAN)
+ struct fcoe_kwqe_header hdr;
+ u16 tx_max_fc_pay_len;
+#elif defined(__LITTLE_ENDIAN)
+ u16 tx_max_fc_pay_len;
+ struct fcoe_kwqe_header hdr;
+#endif
+ u32 cq_addr_lo;
+ u32 cq_addr_hi;
+ u32 xferq_addr_lo;
+ u32 xferq_addr_hi;
+ u32 conn_db_addr_lo;
+ u32 conn_db_addr_hi;
+ u32 reserved1;
+};
+
+/*
+ * FCoE connection offload request 3
+ */
+struct fcoe_kwqe_conn_offload3 {
+#if defined(__BIG_ENDIAN)
+ struct fcoe_kwqe_header hdr;
+ u16 vlan_tag;
+#define FCOE_KWQE_CONN_OFFLOAD3_VLAN_ID (0xFFF<<0)
+#define FCOE_KWQE_CONN_OFFLOAD3_VLAN_ID_SHIFT 0
+#define FCOE_KWQE_CONN_OFFLOAD3_CFI (0x1<<12)
+#define FCOE_KWQE_CONN_OFFLOAD3_CFI_SHIFT 12
+#define FCOE_KWQE_CONN_OFFLOAD3_PRIORITY (0x7<<13)
+#define FCOE_KWQE_CONN_OFFLOAD3_PRIORITY_SHIFT 13
+#elif defined(__LITTLE_ENDIAN)
+ u16 vlan_tag;
+#define FCOE_KWQE_CONN_OFFLOAD3_VLAN_ID (0xFFF<<0)
+#define FCOE_KWQE_CONN_OFFLOAD3_VLAN_ID_SHIFT 0
+#define FCOE_KWQE_CONN_OFFLOAD3_CFI (0x1<<12)
+#define FCOE_KWQE_CONN_OFFLOAD3_CFI_SHIFT 12
+#define FCOE_KWQE_CONN_OFFLOAD3_PRIORITY (0x7<<13)
+#define FCOE_KWQE_CONN_OFFLOAD3_PRIORITY_SHIFT 13
+ struct fcoe_kwqe_header hdr;
+#endif
+#if defined(__BIG_ENDIAN)
+ u8 tx_max_conc_seqs_c3;
+ u8 s_id[3];
+#elif defined(__LITTLE_ENDIAN)
+ u8 s_id[3];
+ u8 tx_max_conc_seqs_c3;
+#endif
+#if defined(__BIG_ENDIAN)
+ u8 flags;
+#define FCOE_KWQE_CONN_OFFLOAD3_B_MUL_N_PORT_IDS (0x1<<0)
+#define FCOE_KWQE_CONN_OFFLOAD3_B_MUL_N_PORT_IDS_SHIFT 0
+#define FCOE_KWQE_CONN_OFFLOAD3_B_E_D_TOV_RES (0x1<<1)
+#define FCOE_KWQE_CONN_OFFLOAD3_B_E_D_TOV_RES_SHIFT 1
+#define FCOE_KWQE_CONN_OFFLOAD3_B_CONT_INCR_SEQ_CNT (0x1<<2)
+#define FCOE_KWQE_CONN_OFFLOAD3_B_CONT_INCR_SEQ_CNT_SHIFT 2
+#define FCOE_KWQE_CONN_OFFLOAD3_B_CONF_REQ (0x1<<3)
+#define FCOE_KWQE_CONN_OFFLOAD3_B_CONF_REQ_SHIFT 3
+#define FCOE_KWQE_CONN_OFFLOAD3_B_REC_VALID (0x1<<4)
+#define FCOE_KWQE_CONN_OFFLOAD3_B_REC_VALID_SHIFT 4
+#define FCOE_KWQE_CONN_OFFLOAD3_B_C2_VALID (0x1<<5)
+#define FCOE_KWQE_CONN_OFFLOAD3_B_C2_VALID_SHIFT 5
+#define FCOE_KWQE_CONN_OFFLOAD3_B_ACK_0 (0x1<<6)
+#define FCOE_KWQE_CONN_OFFLOAD3_B_ACK_0_SHIFT 6
+#define FCOE_KWQE_CONN_OFFLOAD3_B_VLAN_FLAG (0x1<<7)
+#define FCOE_KWQE_CONN_OFFLOAD3_B_VLAN_FLAG_SHIFT 7
+ u8 d_id[3];
+#elif defined(__LITTLE_ENDIAN)
+ u8 d_id[3];
+ u8 flags;
+#define FCOE_KWQE_CONN_OFFLOAD3_B_MUL_N_PORT_IDS (0x1<<0)
+#define FCOE_KWQE_CONN_OFFLOAD3_B_MUL_N_PORT_IDS_SHIFT 0
+#define FCOE_KWQE_CONN_OFFLOAD3_B_E_D_TOV_RES (0x1<<1)
+#define FCOE_KWQE_CONN_OFFLOAD3_B_E_D_TOV_RES_SHIFT 1
+#define FCOE_KWQE_CONN_OFFLOAD3_B_CONT_INCR_SEQ_CNT (0x1<<2)
+#define FCOE_KWQE_CONN_OFFLOAD3_B_CONT_INCR_SEQ_CNT_SHIFT 2
+#define FCOE_KWQE_CONN_OFFLOAD3_B_CONF_REQ (0x1<<3)
+#define FCOE_KWQE_CONN_OFFLOAD3_B_CONF_REQ_SHIFT 3
+#define FCOE_KWQE_CONN_OFFLOAD3_B_REC_VALID (0x1<<4)
+#define FCOE_KWQE_CONN_OFFLOAD3_B_REC_VALID_SHIFT 4
+#define FCOE_KWQE_CONN_OFFLOAD3_B_C2_VALID (0x1<<5)
+#define FCOE_KWQE_CONN_OFFLOAD3_B_C2_VALID_SHIFT 5
+#define FCOE_KWQE_CONN_OFFLOAD3_B_ACK_0 (0x1<<6)
+#define FCOE_KWQE_CONN_OFFLOAD3_B_ACK_0_SHIFT 6
+#define FCOE_KWQE_CONN_OFFLOAD3_B_VLAN_FLAG (0x1<<7)
+#define FCOE_KWQE_CONN_OFFLOAD3_B_VLAN_FLAG_SHIFT 7
+#endif
+ u32 reserved;
+ u32 confq_first_pbe_addr_lo;
+ u32 confq_first_pbe_addr_hi;
+#if defined(__BIG_ENDIAN)
+ u16 rx_max_fc_pay_len;
+ u16 tx_total_conc_seqs;
+#elif defined(__LITTLE_ENDIAN)
+ u16 tx_total_conc_seqs;
+ u16 rx_max_fc_pay_len;
+#endif
+#if defined(__BIG_ENDIAN)
+ u8 rx_open_seqs_exch_c3;
+ u8 rx_max_conc_seqs_c3;
+ u16 rx_total_conc_seqs;
+#elif defined(__LITTLE_ENDIAN)
+ u16 rx_total_conc_seqs;
+ u8 rx_max_conc_seqs_c3;
+ u8 rx_open_seqs_exch_c3;
+#endif
+};
+
+/*
+ * FCoE connection offload request 4
+ */
+struct fcoe_kwqe_conn_offload4 {
+#if defined(__BIG_ENDIAN)
+ struct fcoe_kwqe_header hdr;
+ u8 reserved2;
+ u8 e_d_tov_timer_val;
+#elif defined(__LITTLE_ENDIAN)
+ u8 e_d_tov_timer_val;
+ u8 reserved2;
+ struct fcoe_kwqe_header hdr;
+#endif
+ u8 src_mac_addr_lo32[4];
+#if defined(__BIG_ENDIAN)
+ u8 dst_mac_addr_hi16[2];
+ u8 src_mac_addr_hi16[2];
+#elif defined(__LITTLE_ENDIAN)
+ u8 src_mac_addr_hi16[2];
+ u8 dst_mac_addr_hi16[2];
+#endif
+ u8 dst_mac_addr_lo32[4];
+ u32 lcq_addr_lo;
+ u32 lcq_addr_hi;
+ u32 confq_pbl_base_addr_lo;
+ u32 confq_pbl_base_addr_hi;
+};
+
+/*
+ * FCoE connection enable request
+ */
+struct fcoe_kwqe_conn_enable_disable {
+#if defined(__BIG_ENDIAN)
+ struct fcoe_kwqe_header hdr;
+ u16 reserved0;
+#elif defined(__LITTLE_ENDIAN)
+ u16 reserved0;
+ struct fcoe_kwqe_header hdr;
+#endif
+ u8 src_mac_addr_lo32[4];
+#if defined(__BIG_ENDIAN)
+ u16 vlan_tag;
+#define FCOE_KWQE_CONN_ENABLE_DISABLE_VLAN_ID (0xFFF<<0)
+#define FCOE_KWQE_CONN_ENABLE_DISABLE_VLAN_ID_SHIFT 0
+#define FCOE_KWQE_CONN_ENABLE_DISABLE_CFI (0x1<<12)
+#define FCOE_KWQE_CONN_ENABLE_DISABLE_CFI_SHIFT 12
+#define FCOE_KWQE_CONN_ENABLE_DISABLE_PRIORITY (0x7<<13)
+#define FCOE_KWQE_CONN_ENABLE_DISABLE_PRIORITY_SHIFT 13
+ u8 src_mac_addr_hi16[2];
+#elif defined(__LITTLE_ENDIAN)
+ u8 src_mac_addr_hi16[2];
+ u16 vlan_tag;
+#define FCOE_KWQE_CONN_ENABLE_DISABLE_VLAN_ID (0xFFF<<0)
+#define FCOE_KWQE_CONN_ENABLE_DISABLE_VLAN_ID_SHIFT 0
+#define FCOE_KWQE_CONN_ENABLE_DISABLE_CFI (0x1<<12)
+#define FCOE_KWQE_CONN_ENABLE_DISABLE_CFI_SHIFT 12
+#define FCOE_KWQE_CONN_ENABLE_DISABLE_PRIORITY (0x7<<13)
+#define FCOE_KWQE_CONN_ENABLE_DISABLE_PRIORITY_SHIFT 13
+#endif
+ u8 dst_mac_addr_lo32[4];
+#if defined(__BIG_ENDIAN)
+ u16 reserved1;
+ u8 dst_mac_addr_hi16[2];
+#elif defined(__LITTLE_ENDIAN)
+ u8 dst_mac_addr_hi16[2];
+ u16 reserved1;
+#endif
+#if defined(__BIG_ENDIAN)
+ u8 vlan_flag;
+ u8 s_id[3];
+#elif defined(__LITTLE_ENDIAN)
+ u8 s_id[3];
+ u8 vlan_flag;
+#endif
+#if defined(__BIG_ENDIAN)
+ u8 reserved3;
+ u8 d_id[3];
+#elif defined(__LITTLE_ENDIAN)
+ u8 d_id[3];
+ u8 reserved3;
+#endif
+ u32 context_id;
+ u32 conn_id;
+ u32 reserved4;
+};
+
+/*
+ * FCoE connection destroy request
+ */
+struct fcoe_kwqe_conn_destroy {
+#if defined(__BIG_ENDIAN)
+ struct fcoe_kwqe_header hdr;
+ u16 reserved0;
+#elif defined(__LITTLE_ENDIAN)
+ u16 reserved0;
+ struct fcoe_kwqe_header hdr;
+#endif
+ u32 context_id;
+ u32 conn_id;
+ u32 reserved1[5];
+};
+
+/*
+ * FCoe destroy request
+ */
+struct fcoe_kwqe_destroy {
+#if defined(__BIG_ENDIAN)
+ struct fcoe_kwqe_header hdr;
+ u16 reserved0;
+#elif defined(__LITTLE_ENDIAN)
+ u16 reserved0;
+ struct fcoe_kwqe_header hdr;
+#endif
+ u32 reserved1[7];
+};
+
+/*
+ * FCoe statistics request
+ */
+struct fcoe_kwqe_stat {
+#if defined(__BIG_ENDIAN)
+ struct fcoe_kwqe_header hdr;
+ u16 reserved0;
+#elif defined(__LITTLE_ENDIAN)
+ u16 reserved0;
+ struct fcoe_kwqe_header hdr;
+#endif
+ u32 stat_params_addr_lo;
+ u32 stat_params_addr_hi;
+ u32 reserved1[5];
+};
+
+/*
+ * FCoE KWQ WQE
+ */
+union fcoe_kwqe {
+ struct fcoe_kwqe_init1 init1;
+ struct fcoe_kwqe_init2 init2;
+ struct fcoe_kwqe_init3 init3;
+ struct fcoe_kwqe_conn_offload1 conn_offload1;
+ struct fcoe_kwqe_conn_offload2 conn_offload2;
+ struct fcoe_kwqe_conn_offload3 conn_offload3;
+ struct fcoe_kwqe_conn_offload4 conn_offload4;
+ struct fcoe_kwqe_conn_enable_disable conn_enable_disable;
+ struct fcoe_kwqe_conn_destroy conn_destroy;
+ struct fcoe_kwqe_destroy destroy;
+ struct fcoe_kwqe_stat statistics;
+};
+
+struct fcoe_mul_sges_ctx {
+ struct regpair cur_sge_addr;
+#if defined(__BIG_ENDIAN)
+ u8 sgl_size;
+ u8 cur_sge_idx;
+ u16 cur_sge_off;
+#elif defined(__LITTLE_ENDIAN)
+ u16 cur_sge_off;
+ u8 cur_sge_idx;
+ u8 sgl_size;
+#endif
+};
+
+struct fcoe_s_stat_ctx {
+ u8 flags;
+#define FCOE_S_STAT_CTX_ACTIVE (0x1<<0)
+#define FCOE_S_STAT_CTX_ACTIVE_SHIFT 0
+#define FCOE_S_STAT_CTX_ACK_ABORT_SEQ_COND (0x1<<1)
+#define FCOE_S_STAT_CTX_ACK_ABORT_SEQ_COND_SHIFT 1
+#define FCOE_S_STAT_CTX_ABTS_PERFORMED (0x1<<2)
+#define FCOE_S_STAT_CTX_ABTS_PERFORMED_SHIFT 2
+#define FCOE_S_STAT_CTX_SEQ_TIMEOUT (0x1<<3)
+#define FCOE_S_STAT_CTX_SEQ_TIMEOUT_SHIFT 3
+#define FCOE_S_STAT_CTX_P_RJT (0x1<<4)
+#define FCOE_S_STAT_CTX_P_RJT_SHIFT 4
+#define FCOE_S_STAT_CTX_ACK_EOFT (0x1<<5)
+#define FCOE_S_STAT_CTX_ACK_EOFT_SHIFT 5
+#define FCOE_S_STAT_CTX_RSRV1 (0x3<<6)
+#define FCOE_S_STAT_CTX_RSRV1_SHIFT 6
+};
+
+struct fcoe_seq_ctx {
+#if defined(__BIG_ENDIAN)
+ u16 low_seq_cnt;
+ struct fcoe_s_stat_ctx s_stat;
+ u8 seq_id;
+#elif defined(__LITTLE_ENDIAN)
+ u8 seq_id;
+ struct fcoe_s_stat_ctx s_stat;
+ u16 low_seq_cnt;
+#endif
+#if defined(__BIG_ENDIAN)
+ u16 err_seq_cnt;
+ u16 high_seq_cnt;
+#elif defined(__LITTLE_ENDIAN)
+ u16 high_seq_cnt;
+ u16 err_seq_cnt;
+#endif
+ u32 low_exp_ro;
+ u32 high_exp_ro;
+};
+
+
+struct fcoe_single_sge_ctx {
+ struct regpair cur_buf_addr;
+#if defined(__BIG_ENDIAN)
+ u16 reserved0;
+ u16 cur_buf_rem;
+#elif defined(__LITTLE_ENDIAN)
+ u16 cur_buf_rem;
+ u16 reserved0;
+#endif
+};
+
+union fcoe_sgl_ctx {
+ struct fcoe_single_sge_ctx single_sge;
+ struct fcoe_mul_sges_ctx mul_sges;
+};
+
+
+
+/*
+ * FCoE SQ element
+ */
+struct fcoe_sqe {
+ u16 wqe;
+#define FCOE_SQE_TASK_ID (0x7FFF<<0)
+#define FCOE_SQE_TASK_ID_SHIFT 0
+#define FCOE_SQE_TOGGLE_BIT (0x1<<15)
+#define FCOE_SQE_TOGGLE_BIT_SHIFT 15
+};
+
+
+
+struct fcoe_task_ctx_entry_tx_only {
+ union fcoe_sgl_ctx sgl_ctx;
+};
+
+struct fcoe_task_ctx_entry_txwr_rxrd {
+#if defined(__BIG_ENDIAN)
+ u16 verify_tx_seq;
+ u8 init_flags;
+#define FCOE_TASK_CTX_ENTRY_TXWR_RXRD_TASK_TYPE (0x7<<0)
+#define FCOE_TASK_CTX_ENTRY_TXWR_RXRD_TASK_TYPE_SHIFT 0
+#define FCOE_TASK_CTX_ENTRY_TXWR_RXRD_DEV_TYPE (0x1<<3)
+#define FCOE_TASK_CTX_ENTRY_TXWR_RXRD_DEV_TYPE_SHIFT 3
+#define FCOE_TASK_CTX_ENTRY_TXWR_RXRD_CLASS_TYPE (0x1<<4)
+#define FCOE_TASK_CTX_ENTRY_TXWR_RXRD_CLASS_TYPE_SHIFT 4
+#define FCOE_TASK_CTX_ENTRY_TXWR_RXRD_SINGLE_SGE (0x1<<5)
+#define FCOE_TASK_CTX_ENTRY_TXWR_RXRD_SINGLE_SGE_SHIFT 5
+#define FCOE_TASK_CTX_ENTRY_TXWR_RXRD_RSRV5 (0x3<<6)
+#define FCOE_TASK_CTX_ENTRY_TXWR_RXRD_RSRV5_SHIFT 6
+ u8 tx_flags;
+#define FCOE_TASK_CTX_ENTRY_TXWR_RXRD_TX_STATE (0xF<<0)
+#define FCOE_TASK_CTX_ENTRY_TXWR_RXRD_TX_STATE_SHIFT 0
+#define FCOE_TASK_CTX_ENTRY_TXWR_RXRD_RSRV4 (0xF<<4)
+#define FCOE_TASK_CTX_ENTRY_TXWR_RXRD_RSRV4_SHIFT 4
+#elif defined(__LITTLE_ENDIAN)
+ u8 tx_flags;
+#define FCOE_TASK_CTX_ENTRY_TXWR_RXRD_TX_STATE (0xF<<0)
+#define FCOE_TASK_CTX_ENTRY_TXWR_RXRD_TX_STATE_SHIFT 0
+#define FCOE_TASK_CTX_ENTRY_TXWR_RXRD_RSRV4 (0xF<<4)
+#define FCOE_TASK_CTX_ENTRY_TXWR_RXRD_RSRV4_SHIFT 4
+ u8 init_flags;
+#define FCOE_TASK_CTX_ENTRY_TXWR_RXRD_TASK_TYPE (0x7<<0)
+#define FCOE_TASK_CTX_ENTRY_TXWR_RXRD_TASK_TYPE_SHIFT 0
+#define FCOE_TASK_CTX_ENTRY_TXWR_RXRD_DEV_TYPE (0x1<<3)
+#define FCOE_TASK_CTX_ENTRY_TXWR_RXRD_DEV_TYPE_SHIFT 3
+#define FCOE_TASK_CTX_ENTRY_TXWR_RXRD_CLASS_TYPE (0x1<<4)
+#define FCOE_TASK_CTX_ENTRY_TXWR_RXRD_CLASS_TYPE_SHIFT 4
+#define FCOE_TASK_CTX_ENTRY_TXWR_RXRD_SINGLE_SGE (0x1<<5)
+#define FCOE_TASK_CTX_ENTRY_TXWR_RXRD_SINGLE_SGE_SHIFT 5
+#define FCOE_TASK_CTX_ENTRY_TXWR_RXRD_RSRV5 (0x3<<6)
+#define FCOE_TASK_CTX_ENTRY_TXWR_RXRD_RSRV5_SHIFT 6
+ u16 verify_tx_seq;
+#endif
+};
+
+/*
+ * Common section. Both TX and RX processing might write and read from it in
+ * different flows
+ */
+struct fcoe_task_ctx_entry_tx_rx_cmn {
+ u32 data_2_trns;
+ union fcoe_general_task_ctx general;
+#if defined(__BIG_ENDIAN)
+ u16 tx_low_seq_cnt;
+ struct fcoe_s_stat_ctx tx_s_stat;
+ u8 tx_seq_id;
+#elif defined(__LITTLE_ENDIAN)
+ u8 tx_seq_id;
+ struct fcoe_s_stat_ctx tx_s_stat;
+ u16 tx_low_seq_cnt;
+#endif
+ u32 common_flags;
+#define FCOE_TASK_CTX_ENTRY_TX_RX_CMN_CID (0xFFFFFF<<0)
+#define FCOE_TASK_CTX_ENTRY_TX_RX_CMN_CID_SHIFT 0
+#define FCOE_TASK_CTX_ENTRY_TX_RX_CMN_VALID (0x1<<24)
+#define FCOE_TASK_CTX_ENTRY_TX_RX_CMN_VALID_SHIFT 24
+#define FCOE_TASK_CTX_ENTRY_TX_RX_CMN_SEQ_INIT (0x1<<25)
+#define FCOE_TASK_CTX_ENTRY_TX_RX_CMN_SEQ_INIT_SHIFT 25
+#define FCOE_TASK_CTX_ENTRY_TX_RX_CMN_PEND_XFER (0x1<<26)
+#define FCOE_TASK_CTX_ENTRY_TX_RX_CMN_PEND_XFER_SHIFT 26
+#define FCOE_TASK_CTX_ENTRY_TX_RX_CMN_PEND_CONF (0x1<<27)
+#define FCOE_TASK_CTX_ENTRY_TX_RX_CMN_PEND_CONF_SHIFT 27
+#define FCOE_TASK_CTX_ENTRY_TX_RX_CMN_EXP_FIRST_FRAME (0x1<<28)
+#define FCOE_TASK_CTX_ENTRY_TX_RX_CMN_EXP_FIRST_FRAME_SHIFT 28
+#define FCOE_TASK_CTX_ENTRY_TX_RX_CMN_RSRV (0x7<<29)
+#define FCOE_TASK_CTX_ENTRY_TX_RX_CMN_RSRV_SHIFT 29
+};
+
+struct fcoe_task_ctx_entry_rxwr_txrd {
+#if defined(__BIG_ENDIAN)
+ u16 rx_id;
+ u16 rx_flags;
+#define FCOE_TASK_CTX_ENTRY_RXWR_TXRD_RX_STATE (0xF<<0)
+#define FCOE_TASK_CTX_ENTRY_RXWR_TXRD_RX_STATE_SHIFT 0
+#define FCOE_TASK_CTX_ENTRY_RXWR_TXRD_NUM_RQ_WQE (0x7<<4)
+#define FCOE_TASK_CTX_ENTRY_RXWR_TXRD_NUM_RQ_WQE_SHIFT 4
+#define FCOE_TASK_CTX_ENTRY_RXWR_TXRD_CONF_REQ (0x1<<7)
+#define FCOE_TASK_CTX_ENTRY_RXWR_TXRD_CONF_REQ_SHIFT 7
+#define FCOE_TASK_CTX_ENTRY_RXWR_TXRD_MISS_FRAME (0x1<<8)
+#define FCOE_TASK_CTX_ENTRY_RXWR_TXRD_MISS_FRAME_SHIFT 8
+#define FCOE_TASK_CTX_ENTRY_RXWR_TXRD_RESERVED0 (0x7F<<9)
+#define FCOE_TASK_CTX_ENTRY_RXWR_TXRD_RESERVED0_SHIFT 9
+#elif defined(__LITTLE_ENDIAN)
+ u16 rx_flags;
+#define FCOE_TASK_CTX_ENTRY_RXWR_TXRD_RX_STATE (0xF<<0)
+#define FCOE_TASK_CTX_ENTRY_RXWR_TXRD_RX_STATE_SHIFT 0
+#define FCOE_TASK_CTX_ENTRY_RXWR_TXRD_NUM_RQ_WQE (0x7<<4)
+#define FCOE_TASK_CTX_ENTRY_RXWR_TXRD_NUM_RQ_WQE_SHIFT 4
+#define FCOE_TASK_CTX_ENTRY_RXWR_TXRD_CONF_REQ (0x1<<7)
+#define FCOE_TASK_CTX_ENTRY_RXWR_TXRD_CONF_REQ_SHIFT 7
+#define FCOE_TASK_CTX_ENTRY_RXWR_TXRD_MISS_FRAME (0x1<<8)
+#define FCOE_TASK_CTX_ENTRY_RXWR_TXRD_MISS_FRAME_SHIFT 8
+#define FCOE_TASK_CTX_ENTRY_RXWR_TXRD_RESERVED0 (0x7F<<9)
+#define FCOE_TASK_CTX_ENTRY_RXWR_TXRD_RESERVED0_SHIFT 9
+ u16 rx_id;
+#endif
+};
+
+struct fcoe_task_ctx_entry_rx_only {
+ struct fcoe_seq_ctx seq_ctx;
+ struct fcoe_seq_ctx ooo_seq_ctx;
+ u32 rsrv3;
+ union fcoe_sgl_ctx sgl_ctx;
+};
+
+struct fcoe_task_ctx_entry {
+ struct fcoe_task_ctx_entry_tx_only tx_wr_only;
+ struct fcoe_task_ctx_entry_txwr_rxrd tx_wr_rx_rd;
+ struct fcoe_task_ctx_entry_tx_rx_cmn cmn;
+ struct fcoe_task_ctx_entry_rxwr_txrd rx_wr_tx_rd;
+ struct fcoe_task_ctx_entry_rx_only rx_wr_only;
+ u32 reserved[4];
+};
+
+
+/*
+ * FCoE XFRQ element
+ */
+struct fcoe_xfrqe {
+ u16 wqe;
+#define FCOE_XFRQE_TASK_ID (0x7FFF<<0)
+#define FCOE_XFRQE_TASK_ID_SHIFT 0
+#define FCOE_XFRQE_TOGGLE_BIT (0x1<<15)
+#define FCOE_XFRQE_TOGGLE_BIT_SHIFT 15
+};
+
+
+/*
+ * FCoE CONFQ element
+ */
+struct fcoe_confqe {
+#if defined(__BIG_ENDIAN)
+ u16 rx_id;
+ u16 ox_id;
+#elif defined(__LITTLE_ENDIAN)
+ u16 ox_id;
+ u16 rx_id;
+#endif
+ u32 param;
+};
+
+
+/*
+ * FCoE conection data base
+ */
+struct fcoe_conn_db {
+#if defined(__BIG_ENDIAN)
+ u16 rsrv0;
+ u16 rq_prod;
+#elif defined(__LITTLE_ENDIAN)
+ u16 rq_prod;
+ u16 rsrv0;
+#endif
+ u32 rsrv1;
+ struct regpair cq_arm;
+};
+
+
+/*
+ * FCoE CQ element
+ */
+struct fcoe_cqe {
+ u16 wqe;
+#define FCOE_CQE_CQE_INFO (0x3FFF<<0)
+#define FCOE_CQE_CQE_INFO_SHIFT 0
+#define FCOE_CQE_CQE_TYPE (0x1<<14)
+#define FCOE_CQE_CQE_TYPE_SHIFT 14
+#define FCOE_CQE_TOGGLE_BIT (0x1<<15)
+#define FCOE_CQE_TOGGLE_BIT_SHIFT 15
+};
+
+
+/*
+ * FCoE error/warning resporting entry
+ */
+struct fcoe_err_report_entry {
+ u32 err_warn_bitmap_lo;
+ u32 err_warn_bitmap_hi;
+ u32 tx_buf_off;
+ u32 rx_buf_off;
+ struct fcoe_fc_hdr fc_hdr;
+};
+
+
+/*
+ * FCoE hash table entry (32 bytes)
+ */
+struct fcoe_hash_table_entry {
+#if defined(__BIG_ENDIAN)
+ u8 d_id_0;
+ u8 s_id_2;
+ u8 s_id_1;
+ u8 s_id_0;
+#elif defined(__LITTLE_ENDIAN)
+ u8 s_id_0;
+ u8 s_id_1;
+ u8 s_id_2;
+ u8 d_id_0;
+#endif
+#if defined(__BIG_ENDIAN)
+ u16 dst_mac_addr_hi;
+ u8 d_id_2;
+ u8 d_id_1;
+#elif defined(__LITTLE_ENDIAN)
+ u8 d_id_1;
+ u8 d_id_2;
+ u16 dst_mac_addr_hi;
+#endif
+ u32 dst_mac_addr_lo;
+#if defined(__BIG_ENDIAN)
+ u16 vlan_id;
+ u16 src_mac_addr_hi;
+#elif defined(__LITTLE_ENDIAN)
+ u16 src_mac_addr_hi;
+ u16 vlan_id;
+#endif
+ u32 src_mac_addr_lo;
+#if defined(__BIG_ENDIAN)
+ u16 reserved1;
+ u8 reserved0;
+ u8 vlan_flag;
+#elif defined(__LITTLE_ENDIAN)
+ u8 vlan_flag;
+ u8 reserved0;
+ u16 reserved1;
+#endif
+ u32 reserved2;
+ u32 field_id;
+#define FCOE_HASH_TABLE_ENTRY_CID (0xFFFFFF<<0)
+#define FCOE_HASH_TABLE_ENTRY_CID_SHIFT 0
+#define FCOE_HASH_TABLE_ENTRY_RESERVED3 (0x7F<<24)
+#define FCOE_HASH_TABLE_ENTRY_RESERVED3_SHIFT 24
+#define FCOE_HASH_TABLE_ENTRY_VALID (0x1<<31)
+#define FCOE_HASH_TABLE_ENTRY_VALID_SHIFT 31
+};
+
+/*
+ * FCoE pending work request CQE
+ */
+struct fcoe_pend_wq_cqe {
+ u16 wqe;
+#define FCOE_PEND_WQ_CQE_TASK_ID (0x3FFF<<0)
+#define FCOE_PEND_WQ_CQE_TASK_ID_SHIFT 0
+#define FCOE_PEND_WQ_CQE_CQE_TYPE (0x1<<14)
+#define FCOE_PEND_WQ_CQE_CQE_TYPE_SHIFT 14
+#define FCOE_PEND_WQ_CQE_TOGGLE_BIT (0x1<<15)
+#define FCOE_PEND_WQ_CQE_TOGGLE_BIT_SHIFT 15
+};
+
+
+/*
+ * FCoE RX statistics parameters section#0
+ */
+struct fcoe_rx_stat_params_section0 {
+ u32 fcoe_ver_cnt;
+ u32 fcoe_rx_pkt_cnt;
+ u32 fcoe_rx_byte_cnt;
+ u32 fcoe_rx_drop_pkt_cnt;
+};
+
+
+/*
+ * FCoE RX statistics parameters section#1
+ */
+struct fcoe_rx_stat_params_section1 {
+ u32 fc_crc_cnt;
+ u32 eofa_del_cnt;
+ u32 miss_frame_cnt;
+ u32 seq_timeout_cnt;
+ u32 drop_seq_cnt;
+ u32 fcoe_rx_drop_pkt_cnt;
+ u32 fcp_rx_pkt_cnt;
+ u32 reserved0;
+};
+
+
+/*
+ * FCoE TX statistics parameters
+ */
+struct fcoe_tx_stat_params {
+ u32 fcoe_tx_pkt_cnt;
+ u32 fcoe_tx_byte_cnt;
+ u32 fcp_tx_pkt_cnt;
+ u32 reserved0;
+};
+
+/*
+ * FCoE statistics parameters
+ */
+struct fcoe_statistics_params {
+ struct fcoe_tx_stat_params tx_stat;
+ struct fcoe_rx_stat_params_section0 rx_stat0;
+ struct fcoe_rx_stat_params_section1 rx_stat1;
+};
+
+
+/*
+ * FCoE t2 hash table entry (64 bytes)
+ */
+struct fcoe_t2_hash_table_entry {
+ struct fcoe_hash_table_entry data;
+ struct regpair next;
+ struct regpair reserved0[3];
+};
+
+/*
+ * FCoE unsolicited CQE
+ */
+struct fcoe_unsolicited_cqe {
+ u16 wqe;
+#define FCOE_UNSOLICITED_CQE_SUBTYPE (0x3<<0)
+#define FCOE_UNSOLICITED_CQE_SUBTYPE_SHIFT 0
+#define FCOE_UNSOLICITED_CQE_PKT_LEN (0xFFF<<2)
+#define FCOE_UNSOLICITED_CQE_PKT_LEN_SHIFT 2
+#define FCOE_UNSOLICITED_CQE_CQE_TYPE (0x1<<14)
+#define FCOE_UNSOLICITED_CQE_CQE_TYPE_SHIFT 14
+#define FCOE_UNSOLICITED_CQE_TOGGLE_BIT (0x1<<15)
+#define FCOE_UNSOLICITED_CQE_TOGGLE_BIT_SHIFT 15
+};
+
+
+
+#endif /* __57XX_FCOE_HSI_LINUX_LE__ */
--- /dev/null
+config SCSI_BNX2X_FCOE
+ tristate "Broadcom NetXtreme II FCoE support"
+ depends on PCI
+ select NETDEVICES
+ select NETDEV_1000
+ select LIBFC
+ select LIBFCOE
+ select CNIC
+ ---help---
+ This driver supports FCoE offload for the Broadcom NetXtreme II
+ devices.
--- /dev/null
+obj-$(CONFIG_SCSI_BNX2X_FCOE) += bnx2fc.o
+
+bnx2fc-y := bnx2fc_els.o bnx2fc_fcoe.o bnx2fc_hwi.o bnx2fc_io.o bnx2fc_tgt.o
--- /dev/null
+#ifndef _BNX2FC_H_
+#define _BNX2FC_H_
+/* bnx2fc.h: Broadcom NetXtreme II Linux FCoE offload driver.
+ *
+ * Copyright (c) 2008 - 2010 Broadcom Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation.
+ *
+ * Written by: Bhanu Prakash Gollapudi (bprakash@broadcom.com)
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/kernel.h>
+#include <linux/skbuff.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/if_ether.h>
+#include <linux/if_vlan.h>
+#include <linux/kthread.h>
+#include <linux/crc32.h>
+#include <linux/cpu.h>
+#include <linux/types.h>
+#include <linux/list.h>
+#include <linux/delay.h>
+#include <linux/timer.h>
+#include <linux/errno.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/dma-mapping.h>
+#include <linux/workqueue.h>
+#include <linux/mutex.h>
+#include <linux/spinlock.h>
+#include <linux/bitops.h>
+#include <linux/log2.h>
+#include <linux/interrupt.h>
+#include <linux/sched.h>
+#include <linux/io.h>
+
+#include <scsi/scsi.h>
+#include <scsi/scsi_host.h>
+#include <scsi/scsi_device.h>
+#include <scsi/scsi_cmnd.h>
+#include <scsi/scsi_eh.h>
+#include <scsi/scsi_tcq.h>
+#include <scsi/libfc.h>
+#include <scsi/libfcoe.h>
+#include <scsi/fc_encode.h>
+#include <scsi/scsi_transport.h>
+#include <scsi/scsi_transport_fc.h>
+#include <scsi/fc/fc_fip.h>
+#include <scsi/fc/fc_fc2.h>
+#include <scsi/fc_frame.h>
+#include <scsi/fc/fc_fcoe.h>
+#include <scsi/fc/fc_fcp.h>
+
+#include "57xx_hsi_bnx2fc.h"
+#include "bnx2fc_debug.h"
+#include "../../net/cnic_if.h"
+#include "bnx2fc_constants.h"
+
+#define BNX2FC_NAME "bnx2fc"
+#define BNX2FC_VERSION "1.0.0"
+
+#define PFX "bnx2fc: "
+
+#define BNX2X_DOORBELL_PCI_BAR 2
+
+#define BNX2FC_MAX_BD_LEN 0xffff
+#define BNX2FC_BD_SPLIT_SZ 0x8000
+#define BNX2FC_MAX_BDS_PER_CMD 256
+
+#define BNX2FC_SQ_WQES_MAX 256
+
+#define BNX2FC_SCSI_MAX_SQES ((3 * BNX2FC_SQ_WQES_MAX) / 8)
+#define BNX2FC_TM_MAX_SQES ((BNX2FC_SQ_WQES_MAX) / 2)
+#define BNX2FC_ELS_MAX_SQES (BNX2FC_TM_MAX_SQES - 1)
+
+#define BNX2FC_RQ_WQES_MAX 16
+#define BNX2FC_CQ_WQES_MAX (BNX2FC_SQ_WQES_MAX + BNX2FC_RQ_WQES_MAX)
+
+#define BNX2FC_NUM_MAX_SESS 128
+#define BNX2FC_NUM_MAX_SESS_LOG (ilog2(BNX2FC_NUM_MAX_SESS))
+
+#define BNX2FC_MAX_OUTSTANDING_CMNDS 4096
+#define BNX2FC_MIN_PAYLOAD 256
+#define BNX2FC_MAX_PAYLOAD 2048
+
+#define BNX2FC_RQ_BUF_SZ 256
+#define BNX2FC_RQ_BUF_LOG_SZ (ilog2(BNX2FC_RQ_BUF_SZ))
+
+#define BNX2FC_SQ_WQE_SIZE (sizeof(struct fcoe_sqe))
+#define BNX2FC_CQ_WQE_SIZE (sizeof(struct fcoe_cqe))
+#define BNX2FC_RQ_WQE_SIZE (BNX2FC_RQ_BUF_SZ)
+#define BNX2FC_XFERQ_WQE_SIZE (sizeof(struct fcoe_xfrqe))
+#define BNX2FC_CONFQ_WQE_SIZE (sizeof(struct fcoe_confqe))
+#define BNX2FC_5771X_DB_PAGE_SIZE 128
+
+#define BNX2FC_MAX_TASKS BNX2FC_MAX_OUTSTANDING_CMNDS
+#define BNX2FC_TASK_SIZE 128
+#define BNX2FC_TASKS_PER_PAGE (PAGE_SIZE/BNX2FC_TASK_SIZE)
+#define BNX2FC_TASK_CTX_ARR_SZ (BNX2FC_MAX_TASKS/BNX2FC_TASKS_PER_PAGE)
+
+#define BNX2FC_MAX_ROWS_IN_HASH_TBL 8
+#define BNX2FC_HASH_TBL_CHUNK_SIZE (16 * 1024)
+
+#define BNX2FC_MAX_SEQS 255
+
+#define BNX2FC_READ (1 << 1)
+#define BNX2FC_WRITE (1 << 0)
+
+#define BNX2FC_MIN_XID 0
+#define BNX2FC_MAX_XID (BNX2FC_MAX_OUTSTANDING_CMNDS - 1)
+#define FCOE_MIN_XID (BNX2FC_MAX_OUTSTANDING_CMNDS)
+#define FCOE_MAX_XID \
+ (BNX2FC_MAX_OUTSTANDING_CMNDS + (nr_cpu_ids * 256))
+#define BNX2FC_MAX_LUN 0xFFFF
+#define BNX2FC_MAX_FCP_TGT 256
+#define BNX2FC_MAX_CMD_LEN 16
+
+#define BNX2FC_TM_TIMEOUT 60 /* secs */
+#define BNX2FC_IO_TIMEOUT 20000UL /* msecs */
+
+#define BNX2FC_WAIT_CNT 120
+#define BNX2FC_FW_TIMEOUT (3 * HZ)
+
+#define PORT_MAX 2
+
+#define CMD_SCSI_STATUS(Cmnd) ((Cmnd)->SCp.Status)
+
+/* FC FCP Status */
+#define FC_GOOD 0
+
+#define BNX2FC_RNID_HBA 0x7
+
+/* bnx2fc driver uses only one instance of fcoe_percpu_s */
+extern struct fcoe_percpu_s bnx2fc_global;
+
+extern struct workqueue_struct *bnx2fc_wq;
+
+struct bnx2fc_percpu_s {
+ struct task_struct *iothread;
+ struct list_head work_list;
+ spinlock_t fp_work_lock;
+};
+
+
+struct bnx2fc_hba {
+ struct list_head link;
+ struct cnic_dev *cnic;
+ struct pci_dev *pcidev;
+ struct net_device *netdev;
+ struct net_device *phys_dev;
+ unsigned long reg_with_cnic;
+ #define BNX2FC_CNIC_REGISTERED 1
+ struct packet_type fcoe_packet_type;
+ struct packet_type fip_packet_type;
+ struct bnx2fc_cmd_mgr *cmd_mgr;
+ struct workqueue_struct *timer_work_queue;
+ struct kref kref;
+ spinlock_t hba_lock;
+ struct mutex hba_mutex;
+ unsigned long adapter_state;
+ #define ADAPTER_STATE_UP 0
+ #define ADAPTER_STATE_GOING_DOWN 1
+ #define ADAPTER_STATE_LINK_DOWN 2
+ #define ADAPTER_STATE_READY 3
+ u32 flags;
+ unsigned long init_done;
+ #define BNX2FC_FW_INIT_DONE 0
+ #define BNX2FC_CTLR_INIT_DONE 1
+ #define BNX2FC_CREATE_DONE 2
+ struct fcoe_ctlr ctlr;
+ u8 vlan_enabled;
+ int vlan_id;
+ u32 next_conn_id;
+ struct fcoe_task_ctx_entry **task_ctx;
+ dma_addr_t *task_ctx_dma;
+ struct regpair *task_ctx_bd_tbl;
+ dma_addr_t task_ctx_bd_dma;
+
+ int hash_tbl_segment_count;
+ void **hash_tbl_segments;
+ void *hash_tbl_pbl;
+ dma_addr_t hash_tbl_pbl_dma;
+ struct fcoe_t2_hash_table_entry *t2_hash_tbl;
+ dma_addr_t t2_hash_tbl_dma;
+ char *t2_hash_tbl_ptr;
+ dma_addr_t t2_hash_tbl_ptr_dma;
+
+ char *dummy_buffer;
+ dma_addr_t dummy_buf_dma;
+
+ struct fcoe_statistics_params *stats_buffer;
+ dma_addr_t stats_buf_dma;
+
+ /*
+ * PCI related info.
+ */
+ u16 pci_did;
+ u16 pci_vid;
+ u16 pci_sdid;
+ u16 pci_svid;
+ u16 pci_func;
+ u16 pci_devno;
+
+ struct task_struct *l2_thread;
+
+ /* linkdown handling */
+ wait_queue_head_t shutdown_wait;
+ int wait_for_link_down;
+
+ /*destroy handling */
+ struct timer_list destroy_timer;
+ wait_queue_head_t destroy_wait;
+
+ /* Active list of offloaded sessions */
+ struct bnx2fc_rport *tgt_ofld_list[BNX2FC_NUM_MAX_SESS];
+ int num_ofld_sess;
+
+ /* statistics */
+ struct completion stat_req_done;
+};
+
+#define bnx2fc_from_ctlr(fip) container_of(fip, struct bnx2fc_hba, ctlr)
+
+struct bnx2fc_cmd_mgr {
+ struct bnx2fc_hba *hba;
+ u16 next_idx;
+ struct list_head *free_list;
+ spinlock_t *free_list_lock;
+ struct io_bdt **io_bdt_pool;
+ struct bnx2fc_cmd **cmds;
+};
+
+struct bnx2fc_rport {
+ struct fcoe_port *port;
+ struct fc_rport *rport;
+ struct fc_rport_priv *rdata;
+ void __iomem *ctx_base;
+#define DPM_TRIGER_TYPE 0x40
+ u32 fcoe_conn_id;
+ u32 context_id;
+ u32 sid;
+
+ unsigned long flags;
+#define BNX2FC_FLAG_SESSION_READY 0x1
+#define BNX2FC_FLAG_OFFLOADED 0x2
+#define BNX2FC_FLAG_DISABLED 0x3
+#define BNX2FC_FLAG_DESTROYED 0x4
+#define BNX2FC_FLAG_OFLD_REQ_CMPL 0x5
+#define BNX2FC_FLAG_DESTROY_CMPL 0x6
+#define BNX2FC_FLAG_CTX_ALLOC_FAILURE 0x7
+#define BNX2FC_FLAG_UPLD_REQ_COMPL 0x8
+#define BNX2FC_FLAG_EXPL_LOGO 0x9
+
+ u32 max_sqes;
+ u32 max_rqes;
+ u32 max_cqes;
+
+ struct fcoe_sqe *sq;
+ dma_addr_t sq_dma;
+ u16 sq_prod_idx;
+ u8 sq_curr_toggle_bit;
+ u32 sq_mem_size;
+
+ struct fcoe_cqe *cq;
+ dma_addr_t cq_dma;
+ u32 cq_cons_idx;
+ u8 cq_curr_toggle_bit;
+ u32 cq_mem_size;
+
+ void *rq;
+ dma_addr_t rq_dma;
+ u32 rq_prod_idx;
+ u32 rq_cons_idx;
+ u32 rq_mem_size;
+
+ void *rq_pbl;
+ dma_addr_t rq_pbl_dma;
+ u32 rq_pbl_size;
+
+ struct fcoe_xfrqe *xferq;
+ dma_addr_t xferq_dma;
+ u32 xferq_mem_size;
+
+ struct fcoe_confqe *confq;
+ dma_addr_t confq_dma;
+ u32 confq_mem_size;
+
+ void *confq_pbl;
+ dma_addr_t confq_pbl_dma;
+ u32 confq_pbl_size;
+
+ struct fcoe_conn_db *conn_db;
+ dma_addr_t conn_db_dma;
+ u32 conn_db_mem_size;
+
+ struct fcoe_sqe *lcq;
+ dma_addr_t lcq_dma;
+ u32 lcq_mem_size;
+
+ void *ofld_req[4];
+ dma_addr_t ofld_req_dma[4];
+ void *enbl_req;
+ dma_addr_t enbl_req_dma;
+
+ spinlock_t tgt_lock;
+ spinlock_t cq_lock;
+ atomic_t num_active_ios;
+ u32 flush_in_prog;
+ unsigned long work_time_slice;
+ unsigned long timestamp;
+ struct list_head free_task_list;
+ struct bnx2fc_cmd *pending_queue[BNX2FC_SQ_WQES_MAX+1];
+ atomic_t pi;
+ atomic_t ci;
+ struct list_head active_cmd_queue;
+ struct list_head els_queue;
+ struct list_head io_retire_queue;
+ struct list_head active_tm_queue;
+
+ struct timer_list ofld_timer;
+ wait_queue_head_t ofld_wait;
+
+ struct timer_list upld_timer;
+ wait_queue_head_t upld_wait;
+};
+
+struct bnx2fc_mp_req {
+ u8 tm_flags;
+
+ u32 req_len;
+ void *req_buf;
+ dma_addr_t req_buf_dma;
+ struct fcoe_bd_ctx *mp_req_bd;
+ dma_addr_t mp_req_bd_dma;
+ struct fc_frame_header req_fc_hdr;
+
+ u32 resp_len;
+ void *resp_buf;
+ dma_addr_t resp_buf_dma;
+ struct fcoe_bd_ctx *mp_resp_bd;
+ dma_addr_t mp_resp_bd_dma;
+ struct fc_frame_header resp_fc_hdr;
+};
+
+struct bnx2fc_els_cb_arg {
+ struct bnx2fc_cmd *aborted_io_req;
+ struct bnx2fc_cmd *io_req;
+ u16 l2_oxid;
+};
+
+/* bnx2fc command structure */
+struct bnx2fc_cmd {
+ struct list_head link;
+ u8 on_active_queue;
+ u8 on_tmf_queue;
+ u8 cmd_type;
+#define BNX2FC_SCSI_CMD 1
+#define BNX2FC_TASK_MGMT_CMD 2
+#define BNX2FC_ABTS 3
+#define BNX2FC_ELS 4
+#define BNX2FC_CLEANUP 5
+ u8 io_req_flags;
+ struct kref refcount;
+ struct fcoe_port *port;
+ struct bnx2fc_rport *tgt;
+ struct scsi_cmnd *sc_cmd;
+ struct bnx2fc_cmd_mgr *cmd_mgr;
+ struct bnx2fc_mp_req mp_req;
+ void (*cb_func)(struct bnx2fc_els_cb_arg *cb_arg);
+ struct bnx2fc_els_cb_arg *cb_arg;
+ struct delayed_work timeout_work; /* timer for ULP timeouts */
+ struct completion tm_done;
+ int wait_for_comp;
+ u16 xid;
+ struct fcoe_task_ctx_entry *task;
+ struct io_bdt *bd_tbl;
+ struct fcp_rsp *rsp;
+ size_t data_xfer_len;
+ unsigned long req_flags;
+#define BNX2FC_FLAG_ISSUE_RRQ 0x1
+#define BNX2FC_FLAG_ISSUE_ABTS 0x2
+#define BNX2FC_FLAG_ABTS_DONE 0x3
+#define BNX2FC_FLAG_TM_COMPL 0x4
+#define BNX2FC_FLAG_TM_TIMEOUT 0x5
+#define BNX2FC_FLAG_IO_CLEANUP 0x6
+#define BNX2FC_FLAG_RETIRE_OXID 0x7
+#define BNX2FC_FLAG_EH_ABORT 0x8
+#define BNX2FC_FLAG_IO_COMPL 0x9
+#define BNX2FC_FLAG_ELS_DONE 0xa
+#define BNX2FC_FLAG_ELS_TIMEOUT 0xb
+ u32 fcp_resid;
+ u32 fcp_rsp_len;
+ u32 fcp_sns_len;
+ u8 cdb_status; /* SCSI IO status */
+ u8 fcp_status; /* FCP IO status */
+ u8 fcp_rsp_code;
+ u8 scsi_comp_flags;
+};
+
+struct io_bdt {
+ struct bnx2fc_cmd *io_req;
+ struct fcoe_bd_ctx *bd_tbl;
+ dma_addr_t bd_tbl_dma;
+ u16 bd_valid;
+};
+
+struct bnx2fc_work {
+ struct list_head list;
+ struct bnx2fc_rport *tgt;
+ u16 wqe;
+};
+struct bnx2fc_unsol_els {
+ struct fc_lport *lport;
+ struct fc_frame *fp;
+ struct work_struct unsol_els_work;
+};
+
+
+
+struct bnx2fc_cmd *bnx2fc_elstm_alloc(struct bnx2fc_rport *tgt, int type);
+void bnx2fc_cmd_release(struct kref *ref);
+int bnx2fc_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *sc_cmd);
+int bnx2fc_send_fw_fcoe_init_msg(struct bnx2fc_hba *hba);
+int bnx2fc_send_fw_fcoe_destroy_msg(struct bnx2fc_hba *hba);
+int bnx2fc_send_session_ofld_req(struct fcoe_port *port,
+ struct bnx2fc_rport *tgt);
+int bnx2fc_send_session_disable_req(struct fcoe_port *port,
+ struct bnx2fc_rport *tgt);
+int bnx2fc_send_session_destroy_req(struct bnx2fc_hba *hba,
+ struct bnx2fc_rport *tgt);
+int bnx2fc_map_doorbell(struct bnx2fc_rport *tgt);
+void bnx2fc_indicate_kcqe(void *context, struct kcqe *kcq[],
+ u32 num_cqe);
+int bnx2fc_setup_task_ctx(struct bnx2fc_hba *hba);
+void bnx2fc_free_task_ctx(struct bnx2fc_hba *hba);
+int bnx2fc_setup_fw_resc(struct bnx2fc_hba *hba);
+void bnx2fc_free_fw_resc(struct bnx2fc_hba *hba);
+struct bnx2fc_cmd_mgr *bnx2fc_cmd_mgr_alloc(struct bnx2fc_hba *hba,
+ u16 min_xid, u16 max_xid);
+void bnx2fc_cmd_mgr_free(struct bnx2fc_cmd_mgr *cmgr);
+void bnx2fc_get_link_state(struct bnx2fc_hba *hba);
+char *bnx2fc_get_next_rqe(struct bnx2fc_rport *tgt, u8 num_items);
+void bnx2fc_return_rqe(struct bnx2fc_rport *tgt, u8 num_items);
+int bnx2fc_get_paged_crc_eof(struct sk_buff *skb, int tlen);
+int bnx2fc_send_rrq(struct bnx2fc_cmd *aborted_io_req);
+int bnx2fc_send_adisc(struct bnx2fc_rport *tgt, struct fc_frame *fp);
+int bnx2fc_send_logo(struct bnx2fc_rport *tgt, struct fc_frame *fp);
+int bnx2fc_send_rls(struct bnx2fc_rport *tgt, struct fc_frame *fp);
+int bnx2fc_initiate_cleanup(struct bnx2fc_cmd *io_req);
+int bnx2fc_initiate_abts(struct bnx2fc_cmd *io_req);
+void bnx2fc_cmd_timer_set(struct bnx2fc_cmd *io_req,
+ unsigned int timer_msec);
+int bnx2fc_init_mp_req(struct bnx2fc_cmd *io_req);
+void bnx2fc_init_cleanup_task(struct bnx2fc_cmd *io_req,
+ struct fcoe_task_ctx_entry *task,
+ u16 orig_xid);
+void bnx2fc_init_mp_task(struct bnx2fc_cmd *io_req,
+ struct fcoe_task_ctx_entry *task);
+void bnx2fc_init_task(struct bnx2fc_cmd *io_req,
+ struct fcoe_task_ctx_entry *task);
+void bnx2fc_add_2_sq(struct bnx2fc_rport *tgt, u16 xid);
+void bnx2fc_ring_doorbell(struct bnx2fc_rport *tgt);
+int bnx2fc_eh_abort(struct scsi_cmnd *sc_cmd);
+int bnx2fc_eh_host_reset(struct scsi_cmnd *sc_cmd);
+int bnx2fc_eh_target_reset(struct scsi_cmnd *sc_cmd);
+int bnx2fc_eh_device_reset(struct scsi_cmnd *sc_cmd);
+void bnx2fc_rport_event_handler(struct fc_lport *lport,
+ struct fc_rport_priv *rport,
+ enum fc_rport_event event);
+void bnx2fc_process_scsi_cmd_compl(struct bnx2fc_cmd *io_req,
+ struct fcoe_task_ctx_entry *task,
+ u8 num_rq);
+void bnx2fc_process_cleanup_compl(struct bnx2fc_cmd *io_req,
+ struct fcoe_task_ctx_entry *task,
+ u8 num_rq);
+void bnx2fc_process_abts_compl(struct bnx2fc_cmd *io_req,
+ struct fcoe_task_ctx_entry *task,
+ u8 num_rq);
+void bnx2fc_process_tm_compl(struct bnx2fc_cmd *io_req,
+ struct fcoe_task_ctx_entry *task,
+ u8 num_rq);
+void bnx2fc_process_els_compl(struct bnx2fc_cmd *els_req,
+ struct fcoe_task_ctx_entry *task,
+ u8 num_rq);
+void bnx2fc_build_fcp_cmnd(struct bnx2fc_cmd *io_req,
+ struct fcp_cmnd *fcp_cmnd);
+
+
+
+void bnx2fc_flush_active_ios(struct bnx2fc_rport *tgt);
+struct fc_seq *bnx2fc_elsct_send(struct fc_lport *lport, u32 did,
+ struct fc_frame *fp, unsigned int op,
+ void (*resp)(struct fc_seq *,
+ struct fc_frame *,
+ void *),
+ void *arg, u32 timeout);
+int bnx2fc_process_new_cqes(struct bnx2fc_rport *tgt);
+void bnx2fc_process_cq_compl(struct bnx2fc_rport *tgt, u16 wqe);
+struct bnx2fc_rport *bnx2fc_tgt_lookup(struct fcoe_port *port,
+ u32 port_id);
+void bnx2fc_process_l2_frame_compl(struct bnx2fc_rport *tgt,
+ unsigned char *buf,
+ u32 frame_len, u16 l2_oxid);
+int bnx2fc_send_stat_req(struct bnx2fc_hba *hba);
+
+#endif
--- /dev/null
+#ifndef __BNX2FC_CONSTANTS_H_
+#define __BNX2FC_CONSTANTS_H_
+
+/**
+ * This file defines HSI constants for the FCoE flows
+ */
+
+/* KWQ/KCQ FCoE layer code */
+#define FCOE_KWQE_LAYER_CODE (7)
+
+/* KWQ (kernel work queue) request op codes */
+#define FCOE_KWQE_OPCODE_INIT1 (0)
+#define FCOE_KWQE_OPCODE_INIT2 (1)
+#define FCOE_KWQE_OPCODE_INIT3 (2)
+#define FCOE_KWQE_OPCODE_OFFLOAD_CONN1 (3)
+#define FCOE_KWQE_OPCODE_OFFLOAD_CONN2 (4)
+#define FCOE_KWQE_OPCODE_OFFLOAD_CONN3 (5)
+#define FCOE_KWQE_OPCODE_OFFLOAD_CONN4 (6)
+#define FCOE_KWQE_OPCODE_ENABLE_CONN (7)
+#define FCOE_KWQE_OPCODE_DISABLE_CONN (8)
+#define FCOE_KWQE_OPCODE_DESTROY_CONN (9)
+#define FCOE_KWQE_OPCODE_DESTROY (10)
+#define FCOE_KWQE_OPCODE_STAT (11)
+
+/* KCQ (kernel completion queue) response op codes */
+#define FCOE_KCQE_OPCODE_INIT_FUNC (0x10)
+#define FCOE_KCQE_OPCODE_DESTROY_FUNC (0x11)
+#define FCOE_KCQE_OPCODE_STAT_FUNC (0x12)
+#define FCOE_KCQE_OPCODE_OFFLOAD_CONN (0x15)
+#define FCOE_KCQE_OPCODE_ENABLE_CONN (0x16)
+#define FCOE_KCQE_OPCODE_DISABLE_CONN (0x17)
+#define FCOE_KCQE_OPCODE_DESTROY_CONN (0x18)
+#define FCOE_KCQE_OPCODE_CQ_EVENT_NOTIFICATION (0x20)
+#define FCOE_KCQE_OPCODE_FCOE_ERROR (0x21)
+
+/* KCQ (kernel completion queue) completion status */
+#define FCOE_KCQE_COMPLETION_STATUS_SUCCESS (0x0)
+#define FCOE_KCQE_COMPLETION_STATUS_ERROR (0x1)
+#define FCOE_KCQE_COMPLETION_STATUS_INVALID_OPCODE (0x2)
+#define FCOE_KCQE_COMPLETION_STATUS_CTX_ALLOC_FAILURE (0x3)
+#define FCOE_KCQE_COMPLETION_STATUS_CTX_FREE_FAILURE (0x4)
+#define FCOE_KCQE_COMPLETION_STATUS_NIC_ERROR (0x5)
+
+/* Unsolicited CQE type */
+#define FCOE_UNSOLICITED_FRAME_CQE_TYPE 0
+#define FCOE_ERROR_DETECTION_CQE_TYPE 1
+#define FCOE_WARNING_DETECTION_CQE_TYPE 2
+
+/* Task context constants */
+/* After driver has initialize the task in case timer services required */
+#define FCOE_TASK_TX_STATE_INIT 0
+/* In case timer services are required then shall be updated by Xstorm after
+ * start processing the task. In case no timer facilities are required then the
+ * driver would initialize the state to this value */
+#define FCOE_TASK_TX_STATE_NORMAL 1
+/* Task is under abort procedure. Updated in order to stop processing of
+ * pending WQEs on this task */
+#define FCOE_TASK_TX_STATE_ABORT 2
+/* For E_D_T_TOV timer expiration in Xstorm (Class 2 only) */
+#define FCOE_TASK_TX_STATE_ERROR 3
+/* For REC_TOV timer expiration indication received from Xstorm */
+#define FCOE_TASK_TX_STATE_WARNING 4
+/* For completed unsolicited task */
+#define FCOE_TASK_TX_STATE_UNSOLICITED_COMPLETED 5
+/* For exchange cleanup request task */
+#define FCOE_TASK_TX_STATE_EXCHANGE_CLEANUP 6
+/* For sequence cleanup request task */
+#define FCOE_TASK_TX_STATE_SEQUENCE_CLEANUP 7
+/* Mark task as aborted and indicate that ABTS was not transmitted */
+#define FCOE_TASK_TX_STATE_BEFORE_ABTS_TX 8
+/* Mark task as aborted and indicate that ABTS was transmitted */
+#define FCOE_TASK_TX_STATE_AFTER_ABTS_TX 9
+/* For completion the ABTS task. */
+#define FCOE_TASK_TX_STATE_ABTS_TX_COMPLETED 10
+/* Mark task as aborted and indicate that Exchange cleanup was not transmitted
+ */
+#define FCOE_TASK_TX_STATE_BEFORE_EXCHANGE_CLEANUP_TX 11
+/* Mark task as aborted and indicate that Exchange cleanup was transmitted */
+#define FCOE_TASK_TX_STATE_AFTER_EXCHANGE_CLEANUP_TX 12
+
+#define FCOE_TASK_RX_STATE_NORMAL 0
+#define FCOE_TASK_RX_STATE_COMPLETED 1
+/* Obsolete: Intermediate completion (middle path with local completion) */
+#define FCOE_TASK_RX_STATE_INTER_COMP 2
+/* For REC_TOV timer expiration indication received from Xstorm */
+#define FCOE_TASK_RX_STATE_WARNING 3
+/* For E_D_T_TOV timer expiration in Ustorm */
+#define FCOE_TASK_RX_STATE_ERROR 4
+/* ABTS ACC arrived wait for local completion to finally complete the task. */
+#define FCOE_TASK_RX_STATE_ABTS_ACC_ARRIVED 5
+/* local completion arrived wait for ABTS ACC to finally complete the task. */
+#define FCOE_TASK_RX_STATE_ABTS_LOCAL_COMP_ARRIVED 6
+/* Special completion indication in case of task was aborted. */
+#define FCOE_TASK_RX_STATE_ABTS_COMPLETED 7
+/* Special completion indication in case of task was cleaned. */
+#define FCOE_TASK_RX_STATE_EXCHANGE_CLEANUP_COMPLETED 8
+/* Special completion indication (in task requested the exchange cleanup) in
+ * case cleaned task is in non-valid. */
+#define FCOE_TASK_RX_STATE_ABORT_CLEANUP_COMPLETED 9
+/* Special completion indication (in task requested the sequence cleanup) in
+ * case cleaned task was already returned to normal. */
+#define FCOE_TASK_RX_STATE_IGNORED_SEQUENCE_CLEANUP 10
+/* Exchange cleanup arrived wait until xfer will be handled to finally
+ * complete the task. */
+#define FCOE_TASK_RX_STATE_EXCHANGE_CLEANUP_ARRIVED 11
+/* Xfer handled, wait for exchange cleanup to finally complete the task. */
+#define FCOE_TASK_RX_STATE_EXCHANGE_CLEANUP_HANDLED_XFER 12
+
+#define FCOE_TASK_TYPE_WRITE 0
+#define FCOE_TASK_TYPE_READ 1
+#define FCOE_TASK_TYPE_MIDPATH 2
+#define FCOE_TASK_TYPE_UNSOLICITED 3
+#define FCOE_TASK_TYPE_ABTS 4
+#define FCOE_TASK_TYPE_EXCHANGE_CLEANUP 5
+#define FCOE_TASK_TYPE_SEQUENCE_CLEANUP 6
+
+#define FCOE_TASK_DEV_TYPE_DISK 0
+#define FCOE_TASK_DEV_TYPE_TAPE 1
+
+#define FCOE_TASK_CLASS_TYPE_3 0
+#define FCOE_TASK_CLASS_TYPE_2 1
+
+/* Everest FCoE connection type */
+#define B577XX_FCOE_CONNECTION_TYPE 4
+
+/* Error codes for Error Reporting in fast path flows */
+/* XFER error codes */
+#define FCOE_ERROR_CODE_XFER_OOO_RO 0
+#define FCOE_ERROR_CODE_XFER_RO_NOT_ALIGNED 1
+#define FCOE_ERROR_CODE_XFER_NULL_BURST_LEN 2
+#define FCOE_ERROR_CODE_XFER_RO_GREATER_THAN_DATA2TRNS 3
+#define FCOE_ERROR_CODE_XFER_INVALID_PAYLOAD_SIZE 4
+#define FCOE_ERROR_CODE_XFER_TASK_TYPE_NOT_WRITE 5
+#define FCOE_ERROR_CODE_XFER_PEND_XFER_SET 6
+#define FCOE_ERROR_CODE_XFER_OPENED_SEQ 7
+#define FCOE_ERROR_CODE_XFER_FCTL 8
+
+/* FCP RSP error codes */
+#define FCOE_ERROR_CODE_FCP_RSP_BIDI_FLAGS_SET 9
+#define FCOE_ERROR_CODE_FCP_RSP_UNDERFLOW 10
+#define FCOE_ERROR_CODE_FCP_RSP_OVERFLOW 11
+#define FCOE_ERROR_CODE_FCP_RSP_INVALID_LENGTH_FIELD 12
+#define FCOE_ERROR_CODE_FCP_RSP_INVALID_SNS_FIELD 13
+#define FCOE_ERROR_CODE_FCP_RSP_INVALID_PAYLOAD_SIZE 14
+#define FCOE_ERROR_CODE_FCP_RSP_PEND_XFER_SET 15
+#define FCOE_ERROR_CODE_FCP_RSP_OPENED_SEQ 16
+#define FCOE_ERROR_CODE_FCP_RSP_FCTL 17
+#define FCOE_ERROR_CODE_FCP_RSP_LAST_SEQ_RESET 18
+#define FCOE_ERROR_CODE_FCP_RSP_CONF_REQ_NOT_SUPPORTED_YET 19
+
+/* FCP DATA error codes */
+#define FCOE_ERROR_CODE_DATA_OOO_RO 20
+#define FCOE_ERROR_CODE_DATA_EXCEEDS_DEFINED_MAX_FRAME_SIZE 21
+#define FCOE_ERROR_CODE_DATA_EXCEEDS_DATA2TRNS 22
+#define FCOE_ERROR_CODE_DATA_SOFI3_SEQ_ACTIVE_SET 23
+#define FCOE_ERROR_CODE_DATA_SOFN_SEQ_ACTIVE_RESET 24
+#define FCOE_ERROR_CODE_DATA_EOFN_END_SEQ_SET 25
+#define FCOE_ERROR_CODE_DATA_EOFT_END_SEQ_RESET 26
+#define FCOE_ERROR_CODE_DATA_TASK_TYPE_NOT_READ 27
+#define FCOE_ERROR_CODE_DATA_FCTL 28
+
+/* Middle path error codes */
+#define FCOE_ERROR_CODE_MIDPATH_TYPE_NOT_ELS 29
+#define FCOE_ERROR_CODE_MIDPATH_SOFI3_SEQ_ACTIVE_SET 30
+#define FCOE_ERROR_CODE_MIDPATH_SOFN_SEQ_ACTIVE_RESET 31
+#define FCOE_ERROR_CODE_MIDPATH_EOFN_END_SEQ_SET 32
+#define FCOE_ERROR_CODE_MIDPATH_EOFT_END_SEQ_RESET 33
+#define FCOE_ERROR_CODE_MIDPATH_ELS_REPLY_FCTL 34
+#define FCOE_ERROR_CODE_MIDPATH_INVALID_REPLY 35
+#define FCOE_ERROR_CODE_MIDPATH_ELS_REPLY_RCTL 36
+
+/* ABTS error codes */
+#define FCOE_ERROR_CODE_ABTS_REPLY_F_CTL 37
+#define FCOE_ERROR_CODE_ABTS_REPLY_DDF_RCTL_FIELD 38
+#define FCOE_ERROR_CODE_ABTS_REPLY_INVALID_BLS_RCTL 39
+#define FCOE_ERROR_CODE_ABTS_REPLY_INVALID_RCTL 40
+#define FCOE_ERROR_CODE_ABTS_REPLY_RCTL_GENERAL_MISMATCH 41
+
+/* Common error codes */
+#define FCOE_ERROR_CODE_COMMON_MIDDLE_FRAME_WITH_PAD 42
+#define FCOE_ERROR_CODE_COMMON_SEQ_INIT_IN_TCE 43
+#define FCOE_ERROR_CODE_COMMON_FC_HDR_RX_ID_MISMATCH 44
+#define FCOE_ERROR_CODE_COMMON_INCORRECT_SEQ_CNT 45
+#define FCOE_ERROR_CODE_COMMON_DATA_FC_HDR_FCP_TYPE_MISMATCH 46
+#define FCOE_ERROR_CODE_COMMON_DATA_NO_MORE_SGES 47
+#define FCOE_ERROR_CODE_COMMON_OPTIONAL_FC_HDR 48
+#define FCOE_ERROR_CODE_COMMON_READ_TCE_OX_ID_TOO_BIG 49
+#define FCOE_ERROR_CODE_COMMON_DATA_WAS_NOT_TRANSMITTED 50
+
+/* Unsolicited Rx error codes */
+#define FCOE_ERROR_CODE_UNSOLICITED_TYPE_NOT_ELS 51
+#define FCOE_ERROR_CODE_UNSOLICITED_TYPE_NOT_BLS 52
+#define FCOE_ERROR_CODE_UNSOLICITED_FCTL_ELS 53
+#define FCOE_ERROR_CODE_UNSOLICITED_FCTL_BLS 54
+#define FCOE_ERROR_CODE_UNSOLICITED_R_CTL 55
+
+#define FCOE_ERROR_CODE_RW_TASK_DDF_RCTL_INFO_FIELD 56
+#define FCOE_ERROR_CODE_RW_TASK_INVALID_RCTL 57
+#define FCOE_ERROR_CODE_RW_TASK_RCTL_GENERAL_MISMATCH 58
+
+/* Timer error codes */
+#define FCOE_ERROR_CODE_E_D_TOV_TIMER_EXPIRATION 60
+#define FCOE_ERROR_CODE_REC_TOV_TIMER_EXPIRATION 61
+
+
+#endif /* BNX2FC_CONSTANTS_H_ */
--- /dev/null
+#ifndef __BNX2FC_DEBUG__
+#define __BNX2FC_DEBUG__
+
+/* Log level bit mask */
+#define LOG_IO 0x01 /* scsi cmd error, cleanup */
+#define LOG_TGT 0x02 /* Session setup, cleanup, etc' */
+#define LOG_HBA 0x04 /* lport events, link, mtu, etc' */
+#define LOG_ELS 0x08 /* ELS logs */
+#define LOG_MISC 0x10 /* fcoe L2 frame related logs*/
+#define LOG_ALL 0xff /* LOG all messages */
+
+extern unsigned int bnx2fc_debug_level;
+
+#define BNX2FC_CHK_LOGGING(LEVEL, CMD) \
+ do { \
+ if (unlikely(bnx2fc_debug_level & LEVEL)) \
+ do { \
+ CMD; \
+ } while (0); \
+ } while (0)
+
+#define BNX2FC_ELS_DBG(fmt, arg...) \
+ BNX2FC_CHK_LOGGING(LOG_ELS, \
+ printk(KERN_ALERT PFX fmt, ##arg))
+
+#define BNX2FC_MISC_DBG(fmt, arg...) \
+ BNX2FC_CHK_LOGGING(LOG_MISC, \
+ printk(KERN_ALERT PFX fmt, ##arg))
+
+#define BNX2FC_IO_DBG(io_req, fmt, arg...) \
+ do { \
+ if (!io_req || !io_req->port || !io_req->port->lport || \
+ !io_req->port->lport->host) \
+ BNX2FC_CHK_LOGGING(LOG_IO, \
+ printk(KERN_ALERT PFX "NULL " fmt, ##arg)); \
+ else \
+ BNX2FC_CHK_LOGGING(LOG_IO, \
+ shost_printk(KERN_ALERT, \
+ (io_req)->port->lport->host, \
+ PFX "xid:0x%x " fmt, \
+ (io_req)->xid, ##arg)); \
+ } while (0)
+
+#define BNX2FC_TGT_DBG(tgt, fmt, arg...) \
+ do { \
+ if (!tgt || !tgt->port || !tgt->port->lport || \
+ !tgt->port->lport->host || !tgt->rport) \
+ BNX2FC_CHK_LOGGING(LOG_TGT, \
+ printk(KERN_ALERT PFX "NULL " fmt, ##arg)); \
+ else \
+ BNX2FC_CHK_LOGGING(LOG_TGT, \
+ shost_printk(KERN_ALERT, \
+ (tgt)->port->lport->host, \
+ PFX "port:%x " fmt, \
+ (tgt)->rport->port_id, ##arg)); \
+ } while (0)
+
+
+#define BNX2FC_HBA_DBG(lport, fmt, arg...) \
+ do { \
+ if (!lport || !lport->host) \
+ BNX2FC_CHK_LOGGING(LOG_HBA, \
+ printk(KERN_ALERT PFX "NULL " fmt, ##arg)); \
+ else \
+ BNX2FC_CHK_LOGGING(LOG_HBA, \
+ shost_printk(KERN_ALERT, lport->host, \
+ PFX fmt, ##arg)); \
+ } while (0)
+
+#endif
--- /dev/null
+/*
+ * bnx2fc_els.c: Broadcom NetXtreme II Linux FCoE offload driver.
+ * This file contains helper routines that handle ELS requests
+ * and responses.
+ *
+ * Copyright (c) 2008 - 2010 Broadcom Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation.
+ *
+ * Written by: Bhanu Prakash Gollapudi (bprakash@broadcom.com)
+ */
+
+#include "bnx2fc.h"
+
+static void bnx2fc_logo_resp(struct fc_seq *seq, struct fc_frame *fp,
+ void *arg);
+static void bnx2fc_flogi_resp(struct fc_seq *seq, struct fc_frame *fp,
+ void *arg);
+static int bnx2fc_initiate_els(struct bnx2fc_rport *tgt, unsigned int op,
+ void *data, u32 data_len,
+ void (*cb_func)(struct bnx2fc_els_cb_arg *cb_arg),
+ struct bnx2fc_els_cb_arg *cb_arg, u32 timer_msec);
+
+static void bnx2fc_rrq_compl(struct bnx2fc_els_cb_arg *cb_arg)
+{
+ struct bnx2fc_cmd *orig_io_req;
+ struct bnx2fc_cmd *rrq_req;
+ int rc = 0;
+
+ BUG_ON(!cb_arg);
+ rrq_req = cb_arg->io_req;
+ orig_io_req = cb_arg->aborted_io_req;
+ BUG_ON(!orig_io_req);
+ BNX2FC_ELS_DBG("rrq_compl: orig xid = 0x%x, rrq_xid = 0x%x\n",
+ orig_io_req->xid, rrq_req->xid);
+
+ kref_put(&orig_io_req->refcount, bnx2fc_cmd_release);
+
+ if (test_and_clear_bit(BNX2FC_FLAG_ELS_TIMEOUT, &rrq_req->req_flags)) {
+ /*
+ * els req is timed out. cleanup the IO with FW and
+ * drop the completion. Remove from active_cmd_queue.
+ */
+ BNX2FC_ELS_DBG("rrq xid - 0x%x timed out, clean it up\n",
+ rrq_req->xid);
+
+ if (rrq_req->on_active_queue) {
+ list_del_init(&rrq_req->link);
+ rrq_req->on_active_queue = 0;
+ rc = bnx2fc_initiate_cleanup(rrq_req);
+ BUG_ON(rc);
+ }
+ }
+ kfree(cb_arg);
+}
+int bnx2fc_send_rrq(struct bnx2fc_cmd *aborted_io_req)
+{
+
+ struct fc_els_rrq rrq;
+ struct bnx2fc_rport *tgt = aborted_io_req->tgt;
+ struct fc_lport *lport = tgt->rdata->local_port;
+ struct bnx2fc_els_cb_arg *cb_arg = NULL;
+ u32 sid = tgt->sid;
+ u32 r_a_tov = lport->r_a_tov;
+ unsigned long start = jiffies;
+ int rc;
+
+ BNX2FC_ELS_DBG("Sending RRQ orig_xid = 0x%x\n",
+ aborted_io_req->xid);
+ memset(&rrq, 0, sizeof(rrq));
+
+ cb_arg = kzalloc(sizeof(struct bnx2fc_els_cb_arg), GFP_NOIO);
+ if (!cb_arg) {
+ printk(KERN_ERR PFX "Unable to allocate cb_arg for RRQ\n");
+ rc = -ENOMEM;
+ goto rrq_err;
+ }
+
+ cb_arg->aborted_io_req = aborted_io_req;
+
+ rrq.rrq_cmd = ELS_RRQ;
+ hton24(rrq.rrq_s_id, sid);
+ rrq.rrq_ox_id = htons(aborted_io_req->xid);
+ rrq.rrq_rx_id = htons(aborted_io_req->task->rx_wr_tx_rd.rx_id);
+
+retry_rrq:
+ rc = bnx2fc_initiate_els(tgt, ELS_RRQ, &rrq, sizeof(rrq),
+ bnx2fc_rrq_compl, cb_arg,
+ r_a_tov);
+ if (rc == -ENOMEM) {
+ if (time_after(jiffies, start + (10 * HZ))) {
+ BNX2FC_ELS_DBG("rrq Failed\n");
+ rc = FAILED;
+ goto rrq_err;
+ }
+ msleep(20);
+ goto retry_rrq;
+ }
+rrq_err:
+ if (rc) {
+ BNX2FC_ELS_DBG("RRQ failed - release orig io req 0x%x\n",
+ aborted_io_req->xid);
+ kfree(cb_arg);
+ spin_lock_bh(&tgt->tgt_lock);
+ kref_put(&aborted_io_req->refcount, bnx2fc_cmd_release);
+ spin_unlock_bh(&tgt->tgt_lock);
+ }
+ return rc;
+}
+
+static void bnx2fc_l2_els_compl(struct bnx2fc_els_cb_arg *cb_arg)
+{
+ struct bnx2fc_cmd *els_req;
+ struct bnx2fc_rport *tgt;
+ struct bnx2fc_mp_req *mp_req;
+ struct fc_frame_header *fc_hdr;
+ unsigned char *buf;
+ void *resp_buf;
+ u32 resp_len, hdr_len;
+ u16 l2_oxid;
+ int frame_len;
+ int rc = 0;
+
+ l2_oxid = cb_arg->l2_oxid;
+ BNX2FC_ELS_DBG("ELS COMPL - l2_oxid = 0x%x\n", l2_oxid);
+
+ els_req = cb_arg->io_req;
+ if (test_and_clear_bit(BNX2FC_FLAG_ELS_TIMEOUT, &els_req->req_flags)) {
+ /*
+ * els req is timed out. cleanup the IO with FW and
+ * drop the completion. libfc will handle the els timeout
+ */
+ if (els_req->on_active_queue) {
+ list_del_init(&els_req->link);
+ els_req->on_active_queue = 0;
+ rc = bnx2fc_initiate_cleanup(els_req);
+ BUG_ON(rc);
+ }
+ goto free_arg;
+ }
+
+ tgt = els_req->tgt;
+ mp_req = &(els_req->mp_req);
+ fc_hdr = &(mp_req->resp_fc_hdr);
+ resp_len = mp_req->resp_len;
+ resp_buf = mp_req->resp_buf;
+
+ buf = kzalloc(PAGE_SIZE, GFP_ATOMIC);
+ if (!buf) {
+ printk(KERN_ERR PFX "Unable to alloc mp buf\n");
+ goto free_arg;
+ }
+ hdr_len = sizeof(*fc_hdr);
+ if (hdr_len + resp_len > PAGE_SIZE) {
+ printk(KERN_ERR PFX "l2_els_compl: resp len is "
+ "beyond page size\n");
+ goto free_buf;
+ }
+ memcpy(buf, fc_hdr, hdr_len);
+ memcpy(buf + hdr_len, resp_buf, resp_len);
+ frame_len = hdr_len + resp_len;
+
+ bnx2fc_process_l2_frame_compl(tgt, buf, frame_len, l2_oxid);
+
+free_buf:
+ kfree(buf);
+free_arg:
+ kfree(cb_arg);
+}
+
+int bnx2fc_send_adisc(struct bnx2fc_rport *tgt, struct fc_frame *fp)
+{
+ struct fc_els_adisc *adisc;
+ struct fc_frame_header *fh;
+ struct bnx2fc_els_cb_arg *cb_arg;
+ struct fc_lport *lport = tgt->rdata->local_port;
+ u32 r_a_tov = lport->r_a_tov;
+ int rc;
+
+ fh = fc_frame_header_get(fp);
+ cb_arg = kzalloc(sizeof(struct bnx2fc_els_cb_arg), GFP_ATOMIC);
+ if (!cb_arg) {
+ printk(KERN_ERR PFX "Unable to allocate cb_arg for ADISC\n");
+ return -ENOMEM;
+ }
+
+ cb_arg->l2_oxid = ntohs(fh->fh_ox_id);
+
+ BNX2FC_ELS_DBG("send ADISC: l2_oxid = 0x%x\n", cb_arg->l2_oxid);
+ adisc = fc_frame_payload_get(fp, sizeof(*adisc));
+ /* adisc is initialized by libfc */
+ rc = bnx2fc_initiate_els(tgt, ELS_ADISC, adisc, sizeof(*adisc),
+ bnx2fc_l2_els_compl, cb_arg, 2 * r_a_tov);
+ if (rc)
+ kfree(cb_arg);
+ return rc;
+}
+
+int bnx2fc_send_logo(struct bnx2fc_rport *tgt, struct fc_frame *fp)
+{
+ struct fc_els_logo *logo;
+ struct fc_frame_header *fh;
+ struct bnx2fc_els_cb_arg *cb_arg;
+ struct fc_lport *lport = tgt->rdata->local_port;
+ u32 r_a_tov = lport->r_a_tov;
+ int rc;
+
+ fh = fc_frame_header_get(fp);
+ cb_arg = kzalloc(sizeof(struct bnx2fc_els_cb_arg), GFP_ATOMIC);
+ if (!cb_arg) {
+ printk(KERN_ERR PFX "Unable to allocate cb_arg for LOGO\n");
+ return -ENOMEM;
+ }
+
+ cb_arg->l2_oxid = ntohs(fh->fh_ox_id);
+
+ BNX2FC_ELS_DBG("Send LOGO: l2_oxid = 0x%x\n", cb_arg->l2_oxid);
+ logo = fc_frame_payload_get(fp, sizeof(*logo));
+ /* logo is initialized by libfc */
+ rc = bnx2fc_initiate_els(tgt, ELS_LOGO, logo, sizeof(*logo),
+ bnx2fc_l2_els_compl, cb_arg, 2 * r_a_tov);
+ if (rc)
+ kfree(cb_arg);
+ return rc;
+}
+
+int bnx2fc_send_rls(struct bnx2fc_rport *tgt, struct fc_frame *fp)
+{
+ struct fc_els_rls *rls;
+ struct fc_frame_header *fh;
+ struct bnx2fc_els_cb_arg *cb_arg;
+ struct fc_lport *lport = tgt->rdata->local_port;
+ u32 r_a_tov = lport->r_a_tov;
+ int rc;
+
+ fh = fc_frame_header_get(fp);
+ cb_arg = kzalloc(sizeof(struct bnx2fc_els_cb_arg), GFP_ATOMIC);
+ if (!cb_arg) {
+ printk(KERN_ERR PFX "Unable to allocate cb_arg for LOGO\n");
+ return -ENOMEM;
+ }
+
+ cb_arg->l2_oxid = ntohs(fh->fh_ox_id);
+
+ rls = fc_frame_payload_get(fp, sizeof(*rls));
+ /* rls is initialized by libfc */
+ rc = bnx2fc_initiate_els(tgt, ELS_RLS, rls, sizeof(*rls),
+ bnx2fc_l2_els_compl, cb_arg, 2 * r_a_tov);
+ if (rc)
+ kfree(cb_arg);
+ return rc;
+}
+
+static int bnx2fc_initiate_els(struct bnx2fc_rport *tgt, unsigned int op,
+ void *data, u32 data_len,
+ void (*cb_func)(struct bnx2fc_els_cb_arg *cb_arg),
+ struct bnx2fc_els_cb_arg *cb_arg, u32 timer_msec)
+{
+ struct fcoe_port *port = tgt->port;
+ struct bnx2fc_hba *hba = port->priv;
+ struct fc_rport *rport = tgt->rport;
+ struct fc_lport *lport = port->lport;
+ struct bnx2fc_cmd *els_req;
+ struct bnx2fc_mp_req *mp_req;
+ struct fc_frame_header *fc_hdr;
+ struct fcoe_task_ctx_entry *task;
+ struct fcoe_task_ctx_entry *task_page;
+ int rc = 0;
+ int task_idx, index;
+ u32 did, sid;
+ u16 xid;
+
+ rc = fc_remote_port_chkready(rport);
+ if (rc) {
+ printk(KERN_ALERT PFX "els 0x%x: rport not ready\n", op);
+ rc = -EINVAL;
+ goto els_err;
+ }
+ if (lport->state != LPORT_ST_READY || !(lport->link_up)) {
+ printk(KERN_ALERT PFX "els 0x%x: link is not ready\n", op);
+ rc = -EINVAL;
+ goto els_err;
+ }
+ if (!(test_bit(BNX2FC_FLAG_SESSION_READY, &tgt->flags)) ||
+ (test_bit(BNX2FC_FLAG_EXPL_LOGO, &tgt->flags))) {
+ printk(KERN_ERR PFX "els 0x%x: tgt not ready\n", op);
+ rc = -EINVAL;
+ goto els_err;
+ }
+ els_req = bnx2fc_elstm_alloc(tgt, BNX2FC_ELS);
+ if (!els_req) {
+ rc = -ENOMEM;
+ goto els_err;
+ }
+
+ els_req->sc_cmd = NULL;
+ els_req->port = port;
+ els_req->tgt = tgt;
+ els_req->cb_func = cb_func;
+ cb_arg->io_req = els_req;
+ els_req->cb_arg = cb_arg;
+
+ mp_req = (struct bnx2fc_mp_req *)&(els_req->mp_req);
+ rc = bnx2fc_init_mp_req(els_req);
+ if (rc == FAILED) {
+ printk(KERN_ALERT PFX "ELS MP request init failed\n");
+ spin_lock_bh(&tgt->tgt_lock);
+ kref_put(&els_req->refcount, bnx2fc_cmd_release);
+ spin_unlock_bh(&tgt->tgt_lock);
+ rc = -ENOMEM;
+ goto els_err;
+ } else {
+ /* rc SUCCESS */
+ rc = 0;
+ }
+
+ /* Set the data_xfer_len to the size of ELS payload */
+ mp_req->req_len = data_len;
+ els_req->data_xfer_len = mp_req->req_len;
+
+ /* Fill ELS Payload */
+ if ((op >= ELS_LS_RJT) && (op <= ELS_AUTH_ELS)) {
+ memcpy(mp_req->req_buf, data, data_len);
+ } else {
+ printk(KERN_ALERT PFX "Invalid ELS op 0x%x\n", op);
+ els_req->cb_func = NULL;
+ els_req->cb_arg = NULL;
+ spin_lock_bh(&tgt->tgt_lock);
+ kref_put(&els_req->refcount, bnx2fc_cmd_release);
+ spin_unlock_bh(&tgt->tgt_lock);
+ rc = -EINVAL;
+ }
+
+ if (rc)
+ goto els_err;
+
+ /* Fill FC header */
+ fc_hdr = &(mp_req->req_fc_hdr);
+
+ did = tgt->rport->port_id;
+ sid = tgt->sid;
+
+ __fc_fill_fc_hdr(fc_hdr, FC_RCTL_ELS_REQ, did, sid,
+ FC_TYPE_ELS, FC_FC_FIRST_SEQ | FC_FC_END_SEQ |
+ FC_FC_SEQ_INIT, 0);
+
+ /* Obtain exchange id */
+ xid = els_req->xid;
+ task_idx = xid/BNX2FC_TASKS_PER_PAGE;
+ index = xid % BNX2FC_TASKS_PER_PAGE;
+
+ /* Initialize task context for this IO request */
+ task_page = (struct fcoe_task_ctx_entry *) hba->task_ctx[task_idx];
+ task = &(task_page[index]);
+ bnx2fc_init_mp_task(els_req, task);
+
+ spin_lock_bh(&tgt->tgt_lock);
+
+ if (!test_bit(BNX2FC_FLAG_SESSION_READY, &tgt->flags)) {
+ printk(KERN_ERR PFX "initiate_els.. session not ready\n");
+ els_req->cb_func = NULL;
+ els_req->cb_arg = NULL;
+ kref_put(&els_req->refcount, bnx2fc_cmd_release);
+ spin_unlock_bh(&tgt->tgt_lock);
+ return -EINVAL;
+ }
+
+ if (timer_msec)
+ bnx2fc_cmd_timer_set(els_req, timer_msec);
+ bnx2fc_add_2_sq(tgt, xid);
+
+ els_req->on_active_queue = 1;
+ list_add_tail(&els_req->link, &tgt->els_queue);
+
+ /* Ring doorbell */
+ bnx2fc_ring_doorbell(tgt);
+ spin_unlock_bh(&tgt->tgt_lock);
+
+els_err:
+ return rc;
+}
+
+void bnx2fc_process_els_compl(struct bnx2fc_cmd *els_req,
+ struct fcoe_task_ctx_entry *task, u8 num_rq)
+{
+ struct bnx2fc_mp_req *mp_req;
+ struct fc_frame_header *fc_hdr;
+ u64 *hdr;
+ u64 *temp_hdr;
+
+ BNX2FC_ELS_DBG("Entered process_els_compl xid = 0x%x"
+ "cmd_type = %d\n", els_req->xid, els_req->cmd_type);
+
+ if (test_and_set_bit(BNX2FC_FLAG_ELS_DONE,
+ &els_req->req_flags)) {
+ BNX2FC_ELS_DBG("Timer context finished processing this "
+ "els - 0x%x\n", els_req->xid);
+ /* This IO doesnt receive cleanup completion */
+ kref_put(&els_req->refcount, bnx2fc_cmd_release);
+ return;
+ }
+
+ /* Cancel the timeout_work, as we received the response */
+ if (cancel_delayed_work(&els_req->timeout_work))
+ kref_put(&els_req->refcount,
+ bnx2fc_cmd_release); /* drop timer hold */
+
+ if (els_req->on_active_queue) {
+ list_del_init(&els_req->link);
+ els_req->on_active_queue = 0;
+ }
+
+ mp_req = &(els_req->mp_req);
+ fc_hdr = &(mp_req->resp_fc_hdr);
+
+ hdr = (u64 *)fc_hdr;
+ temp_hdr = (u64 *)
+ &task->cmn.general.cmd_info.mp_fc_frame.fc_hdr;
+ hdr[0] = cpu_to_be64(temp_hdr[0]);
+ hdr[1] = cpu_to_be64(temp_hdr[1]);
+ hdr[2] = cpu_to_be64(temp_hdr[2]);
+
+ mp_req->resp_len = task->rx_wr_only.sgl_ctx.mul_sges.cur_sge_off;
+
+ /* Parse ELS response */
+ if ((els_req->cb_func) && (els_req->cb_arg)) {
+ els_req->cb_func(els_req->cb_arg);
+ els_req->cb_arg = NULL;
+ }
+
+ kref_put(&els_req->refcount, bnx2fc_cmd_release);
+}
+
+static void bnx2fc_flogi_resp(struct fc_seq *seq, struct fc_frame *fp,
+ void *arg)
+{
+ struct fcoe_ctlr *fip = arg;
+ struct fc_exch *exch = fc_seq_exch(seq);
+ struct fc_lport *lport = exch->lp;
+ u8 *mac;
+ struct fc_frame_header *fh;
+ u8 op;
+
+ if (IS_ERR(fp))
+ goto done;
+
+ mac = fr_cb(fp)->granted_mac;
+ if (is_zero_ether_addr(mac)) {
+ fh = fc_frame_header_get(fp);
+ if (fh->fh_type != FC_TYPE_ELS) {
+ printk(KERN_ERR PFX "bnx2fc_flogi_resp:"
+ "fh_type != FC_TYPE_ELS\n");
+ fc_frame_free(fp);
+ return;
+ }
+ op = fc_frame_payload_op(fp);
+ if (lport->vport) {
+ if (op == ELS_LS_RJT) {
+ printk(KERN_ERR PFX "bnx2fc_flogi_resp is LS_RJT\n");
+ fc_vport_terminate(lport->vport);
+ fc_frame_free(fp);
+ return;
+ }
+ }
+ if (fcoe_ctlr_recv_flogi(fip, lport, fp)) {
+ fc_frame_free(fp);
+ return;
+ }
+ }
+ fip->update_mac(lport, mac);
+done:
+ fc_lport_flogi_resp(seq, fp, lport);
+}
+
+static void bnx2fc_logo_resp(struct fc_seq *seq, struct fc_frame *fp,
+ void *arg)
+{
+ struct fcoe_ctlr *fip = arg;
+ struct fc_exch *exch = fc_seq_exch(seq);
+ struct fc_lport *lport = exch->lp;
+ static u8 zero_mac[ETH_ALEN] = { 0 };
+
+ if (!IS_ERR(fp))
+ fip->update_mac(lport, zero_mac);
+ fc_lport_logo_resp(seq, fp, lport);
+}
+
+struct fc_seq *bnx2fc_elsct_send(struct fc_lport *lport, u32 did,
+ struct fc_frame *fp, unsigned int op,
+ void (*resp)(struct fc_seq *,
+ struct fc_frame *,
+ void *),
+ void *arg, u32 timeout)
+{
+ struct fcoe_port *port = lport_priv(lport);
+ struct bnx2fc_hba *hba = port->priv;
+ struct fcoe_ctlr *fip = &hba->ctlr;
+ struct fc_frame_header *fh = fc_frame_header_get(fp);
+
+ switch (op) {
+ case ELS_FLOGI:
+ case ELS_FDISC:
+ return fc_elsct_send(lport, did, fp, op, bnx2fc_flogi_resp,
+ fip, timeout);
+ case ELS_LOGO:
+ /* only hook onto fabric logouts, not port logouts */
+ if (ntoh24(fh->fh_d_id) != FC_FID_FLOGI)
+ break;
+ return fc_elsct_send(lport, did, fp, op, bnx2fc_logo_resp,
+ fip, timeout);
+ }
+ return fc_elsct_send(lport, did, fp, op, resp, arg, timeout);
+}
--- /dev/null
+/* bnx2fc_fcoe.c: Broadcom NetXtreme II Linux FCoE offload driver.
+ * This file contains the code that interacts with libfc, libfcoe,
+ * cnic modules to create FCoE instances, send/receive non-offloaded
+ * FIP/FCoE packets, listen to link events etc.
+ *
+ * Copyright (c) 2008 - 2010 Broadcom Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation.
+ *
+ * Written by: Bhanu Prakash Gollapudi (bprakash@broadcom.com)
+ */
+
+#include "bnx2fc.h"
+
+static struct list_head adapter_list;
+static u32 adapter_count;
+static DEFINE_MUTEX(bnx2fc_dev_lock);
+DEFINE_PER_CPU(struct bnx2fc_percpu_s, bnx2fc_percpu);
+
+#define DRV_MODULE_NAME "bnx2fc"
+#define DRV_MODULE_VERSION BNX2FC_VERSION
+#define DRV_MODULE_RELDATE "Jan 25, 2011"
+
+
+static char version[] __devinitdata =
+ "Broadcom NetXtreme II FCoE Driver " DRV_MODULE_NAME \
+ " v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n";
+
+
+MODULE_AUTHOR("Bhanu Prakash Gollapudi <bprakash@broadcom.com>");
+MODULE_DESCRIPTION("Broadcom NetXtreme II BCM57710 FCoE Driver");
+MODULE_LICENSE("GPL");
+MODULE_VERSION(DRV_MODULE_VERSION);
+
+#define BNX2FC_MAX_QUEUE_DEPTH 256
+#define BNX2FC_MIN_QUEUE_DEPTH 32
+#define FCOE_WORD_TO_BYTE 4
+
+static struct scsi_transport_template *bnx2fc_transport_template;
+static struct scsi_transport_template *bnx2fc_vport_xport_template;
+
+struct workqueue_struct *bnx2fc_wq;
+
+/* bnx2fc structure needs only one instance of the fcoe_percpu_s structure.
+ * Here the io threads are per cpu but the l2 thread is just one
+ */
+struct fcoe_percpu_s bnx2fc_global;
+DEFINE_SPINLOCK(bnx2fc_global_lock);
+
+static struct cnic_ulp_ops bnx2fc_cnic_cb;
+static struct libfc_function_template bnx2fc_libfc_fcn_templ;
+static struct scsi_host_template bnx2fc_shost_template;
+static struct fc_function_template bnx2fc_transport_function;
+static struct fc_function_template bnx2fc_vport_xport_function;
+static int bnx2fc_create(struct net_device *netdev, enum fip_state fip_mode);
+static int bnx2fc_destroy(struct net_device *net_device);
+static int bnx2fc_enable(struct net_device *netdev);
+static int bnx2fc_disable(struct net_device *netdev);
+
+static void bnx2fc_recv_frame(struct sk_buff *skb);
+
+static void bnx2fc_start_disc(struct bnx2fc_hba *hba);
+static int bnx2fc_shost_config(struct fc_lport *lport, struct device *dev);
+static int bnx2fc_net_config(struct fc_lport *lp);
+static int bnx2fc_lport_config(struct fc_lport *lport);
+static int bnx2fc_em_config(struct fc_lport *lport);
+static int bnx2fc_bind_adapter_devices(struct bnx2fc_hba *hba);
+static void bnx2fc_unbind_adapter_devices(struct bnx2fc_hba *hba);
+static int bnx2fc_bind_pcidev(struct bnx2fc_hba *hba);
+static void bnx2fc_unbind_pcidev(struct bnx2fc_hba *hba);
+static struct fc_lport *bnx2fc_if_create(struct bnx2fc_hba *hba,
+ struct device *parent, int npiv);
+static void bnx2fc_destroy_work(struct work_struct *work);
+
+static struct bnx2fc_hba *bnx2fc_hba_lookup(struct net_device *phys_dev);
+static struct bnx2fc_hba *bnx2fc_find_hba_for_cnic(struct cnic_dev *cnic);
+
+static int bnx2fc_fw_init(struct bnx2fc_hba *hba);
+static void bnx2fc_fw_destroy(struct bnx2fc_hba *hba);
+
+static void bnx2fc_port_shutdown(struct fc_lport *lport);
+static void bnx2fc_stop(struct bnx2fc_hba *hba);
+static int __init bnx2fc_mod_init(void);
+static void __exit bnx2fc_mod_exit(void);
+
+unsigned int bnx2fc_debug_level;
+module_param_named(debug_logging, bnx2fc_debug_level, int, S_IRUGO|S_IWUSR);
+
+static int bnx2fc_cpu_callback(struct notifier_block *nfb,
+ unsigned long action, void *hcpu);
+/* notification function for CPU hotplug events */
+static struct notifier_block bnx2fc_cpu_notifier = {
+ .notifier_call = bnx2fc_cpu_callback,
+};
+
+static void bnx2fc_clean_rx_queue(struct fc_lport *lp)
+{
+ struct fcoe_percpu_s *bg;
+ struct fcoe_rcv_info *fr;
+ struct sk_buff_head *list;
+ struct sk_buff *skb, *next;
+ struct sk_buff *head;
+
+ bg = &bnx2fc_global;
+ spin_lock_bh(&bg->fcoe_rx_list.lock);
+ list = &bg->fcoe_rx_list;
+ head = list->next;
+ for (skb = head; skb != (struct sk_buff *)list;
+ skb = next) {
+ next = skb->next;
+ fr = fcoe_dev_from_skb(skb);
+ if (fr->fr_dev == lp) {
+ __skb_unlink(skb, list);
+ kfree_skb(skb);
+ }
+ }
+ spin_unlock_bh(&bg->fcoe_rx_list.lock);
+}
+
+int bnx2fc_get_paged_crc_eof(struct sk_buff *skb, int tlen)
+{
+ int rc;
+ spin_lock(&bnx2fc_global_lock);
+ rc = fcoe_get_paged_crc_eof(skb, tlen, &bnx2fc_global);
+ spin_unlock(&bnx2fc_global_lock);
+
+ return rc;
+}
+
+static void bnx2fc_abort_io(struct fc_lport *lport)
+{
+ /*
+ * This function is no-op for bnx2fc, but we do
+ * not want to leave it as NULL either, as libfc
+ * can call the default function which is
+ * fc_fcp_abort_io.
+ */
+}
+
+static void bnx2fc_cleanup(struct fc_lport *lport)
+{
+ struct fcoe_port *port = lport_priv(lport);
+ struct bnx2fc_hba *hba = port->priv;
+ struct bnx2fc_rport *tgt;
+ int i;
+
+ BNX2FC_MISC_DBG("Entered %s\n", __func__);
+ mutex_lock(&hba->hba_mutex);
+ spin_lock_bh(&hba->hba_lock);
+ for (i = 0; i < BNX2FC_NUM_MAX_SESS; i++) {
+ tgt = hba->tgt_ofld_list[i];
+ if (tgt) {
+ /* Cleanup IOs belonging to requested vport */
+ if (tgt->port == port) {
+ spin_unlock_bh(&hba->hba_lock);
+ BNX2FC_TGT_DBG(tgt, "flush/cleanup\n");
+ bnx2fc_flush_active_ios(tgt);
+ spin_lock_bh(&hba->hba_lock);
+ }
+ }
+ }
+ spin_unlock_bh(&hba->hba_lock);
+ mutex_unlock(&hba->hba_mutex);
+}
+
+static int bnx2fc_xmit_l2_frame(struct bnx2fc_rport *tgt,
+ struct fc_frame *fp)
+{
+ struct fc_rport_priv *rdata = tgt->rdata;
+ struct fc_frame_header *fh;
+ int rc = 0;
+
+ fh = fc_frame_header_get(fp);
+ BNX2FC_TGT_DBG(tgt, "Xmit L2 frame rport = 0x%x, oxid = 0x%x, "
+ "r_ctl = 0x%x\n", rdata->ids.port_id,
+ ntohs(fh->fh_ox_id), fh->fh_r_ctl);
+ if ((fh->fh_type == FC_TYPE_ELS) &&
+ (fh->fh_r_ctl == FC_RCTL_ELS_REQ)) {
+
+ switch (fc_frame_payload_op(fp)) {
+ case ELS_ADISC:
+ rc = bnx2fc_send_adisc(tgt, fp);
+ break;
+ case ELS_LOGO:
+ rc = bnx2fc_send_logo(tgt, fp);
+ break;
+ case ELS_RLS:
+ rc = bnx2fc_send_rls(tgt, fp);
+ break;
+ default:
+ break;
+ }
+ } else if ((fh->fh_type == FC_TYPE_BLS) &&
+ (fh->fh_r_ctl == FC_RCTL_BA_ABTS))
+ BNX2FC_TGT_DBG(tgt, "ABTS frame\n");
+ else {
+ BNX2FC_TGT_DBG(tgt, "Send L2 frame type 0x%x "
+ "rctl 0x%x thru non-offload path\n",
+ fh->fh_type, fh->fh_r_ctl);
+ return -ENODEV;
+ }
+ if (rc)
+ return -ENOMEM;
+ else
+ return 0;
+}
+
+/**
+ * bnx2fc_xmit - bnx2fc's FCoE frame transmit function
+ *
+ * @lport: the associated local port
+ * @fp: the fc_frame to be transmitted
+ */
+static int bnx2fc_xmit(struct fc_lport *lport, struct fc_frame *fp)
+{
+ struct ethhdr *eh;
+ struct fcoe_crc_eof *cp;
+ struct sk_buff *skb;
+ struct fc_frame_header *fh;
+ struct bnx2fc_hba *hba;
+ struct fcoe_port *port;
+ struct fcoe_hdr *hp;
+ struct bnx2fc_rport *tgt;
+ struct fcoe_dev_stats *stats;
+ u8 sof, eof;
+ u32 crc;
+ unsigned int hlen, tlen, elen;
+ int wlen, rc = 0;
+
+ port = (struct fcoe_port *)lport_priv(lport);
+ hba = port->priv;
+
+ fh = fc_frame_header_get(fp);
+
+ skb = fp_skb(fp);
+ if (!lport->link_up) {
+ BNX2FC_HBA_DBG(lport, "bnx2fc_xmit link down\n");
+ kfree_skb(skb);
+ return 0;
+ }
+
+ if (unlikely(fh->fh_r_ctl == FC_RCTL_ELS_REQ)) {
+ if (!hba->ctlr.sel_fcf) {
+ BNX2FC_HBA_DBG(lport, "FCF not selected yet!\n");
+ kfree_skb(skb);
+ return -EINVAL;
+ }
+ if (fcoe_ctlr_els_send(&hba->ctlr, lport, skb))
+ return 0;
+ }
+
+ sof = fr_sof(fp);
+ eof = fr_eof(fp);
+
+ /*
+ * Snoop the frame header to check if the frame is for
+ * an offloaded session
+ */
+ /*
+ * tgt_ofld_list access is synchronized using
+ * both hba mutex and hba lock. Atleast hba mutex or
+ * hba lock needs to be held for read access.
+ */
+
+ spin_lock_bh(&hba->hba_lock);
+ tgt = bnx2fc_tgt_lookup(port, ntoh24(fh->fh_d_id));
+ if (tgt && (test_bit(BNX2FC_FLAG_SESSION_READY, &tgt->flags))) {
+ /* This frame is for offloaded session */
+ BNX2FC_HBA_DBG(lport, "xmit: Frame is for offloaded session "
+ "port_id = 0x%x\n", ntoh24(fh->fh_d_id));
+ spin_unlock_bh(&hba->hba_lock);
+ rc = bnx2fc_xmit_l2_frame(tgt, fp);
+ if (rc != -ENODEV) {
+ kfree_skb(skb);
+ return rc;
+ }
+ } else {
+ spin_unlock_bh(&hba->hba_lock);
+ }
+
+ elen = sizeof(struct ethhdr);
+ hlen = sizeof(struct fcoe_hdr);
+ tlen = sizeof(struct fcoe_crc_eof);
+ wlen = (skb->len - tlen + sizeof(crc)) / FCOE_WORD_TO_BYTE;
+
+ skb->ip_summed = CHECKSUM_NONE;
+ crc = fcoe_fc_crc(fp);
+
+ /* copy port crc and eof to the skb buff */
+ if (skb_is_nonlinear(skb)) {
+ skb_frag_t *frag;
+ if (bnx2fc_get_paged_crc_eof(skb, tlen)) {
+ kfree_skb(skb);
+ return -ENOMEM;
+ }
+ frag = &skb_shinfo(skb)->frags[skb_shinfo(skb)->nr_frags - 1];
+ cp = kmap_atomic(frag->page, KM_SKB_DATA_SOFTIRQ)
+ + frag->page_offset;
+ } else {
+ cp = (struct fcoe_crc_eof *)skb_put(skb, tlen);
+ }
+
+ memset(cp, 0, sizeof(*cp));
+ cp->fcoe_eof = eof;
+ cp->fcoe_crc32 = cpu_to_le32(~crc);
+ if (skb_is_nonlinear(skb)) {
+ kunmap_atomic(cp, KM_SKB_DATA_SOFTIRQ);
+ cp = NULL;
+ }
+
+ /* adjust skb network/transport offsets to match mac/fcoe/port */
+ skb_push(skb, elen + hlen);
+ skb_reset_mac_header(skb);
+ skb_reset_network_header(skb);
+ skb->mac_len = elen;
+ skb->protocol = htons(ETH_P_FCOE);
+ skb->dev = hba->netdev;
+
+ /* fill up mac and fcoe headers */
+ eh = eth_hdr(skb);
+ eh->h_proto = htons(ETH_P_FCOE);
+ if (hba->ctlr.map_dest)
+ fc_fcoe_set_mac(eh->h_dest, fh->fh_d_id);
+ else
+ /* insert GW address */
+ memcpy(eh->h_dest, hba->ctlr.dest_addr, ETH_ALEN);
+
+ if (unlikely(hba->ctlr.flogi_oxid != FC_XID_UNKNOWN))
+ memcpy(eh->h_source, hba->ctlr.ctl_src_addr, ETH_ALEN);
+ else
+ memcpy(eh->h_source, port->data_src_addr, ETH_ALEN);
+
+ hp = (struct fcoe_hdr *)(eh + 1);
+ memset(hp, 0, sizeof(*hp));
+ if (FC_FCOE_VER)
+ FC_FCOE_ENCAPS_VER(hp, FC_FCOE_VER);
+ hp->fcoe_sof = sof;
+
+ /* fcoe lso, mss is in max_payload which is non-zero for FCP data */
+ if (lport->seq_offload && fr_max_payload(fp)) {
+ skb_shinfo(skb)->gso_type = SKB_GSO_FCOE;
+ skb_shinfo(skb)->gso_size = fr_max_payload(fp);
+ } else {
+ skb_shinfo(skb)->gso_type = 0;
+ skb_shinfo(skb)->gso_size = 0;
+ }
+
+ /*update tx stats */
+ stats = per_cpu_ptr(lport->dev_stats, get_cpu());
+ stats->TxFrames++;
+ stats->TxWords += wlen;
+ put_cpu();
+
+ /* send down to lld */
+ fr_dev(fp) = lport;
+ if (port->fcoe_pending_queue.qlen)
+ fcoe_check_wait_queue(lport, skb);
+ else if (fcoe_start_io(skb))
+ fcoe_check_wait_queue(lport, skb);
+
+ return 0;
+}
+
+/**
+ * bnx2fc_rcv - This is bnx2fc's receive function called by NET_RX_SOFTIRQ
+ *
+ * @skb: the receive socket buffer
+ * @dev: associated net device
+ * @ptype: context
+ * @olddev: last device
+ *
+ * This function receives the packet and builds FC frame and passes it up
+ */
+static int bnx2fc_rcv(struct sk_buff *skb, struct net_device *dev,
+ struct packet_type *ptype, struct net_device *olddev)
+{
+ struct fc_lport *lport;
+ struct bnx2fc_hba *hba;
+ struct fc_frame_header *fh;
+ struct fcoe_rcv_info *fr;
+ struct fcoe_percpu_s *bg;
+ unsigned short oxid;
+
+ hba = container_of(ptype, struct bnx2fc_hba, fcoe_packet_type);
+ lport = hba->ctlr.lp;
+
+ if (unlikely(lport == NULL)) {
+ printk(KERN_ALERT PFX "bnx2fc_rcv: lport is NULL\n");
+ goto err;
+ }
+
+ if (unlikely(eth_hdr(skb)->h_proto != htons(ETH_P_FCOE))) {
+ printk(KERN_ALERT PFX "bnx2fc_rcv: Wrong FC type frame\n");
+ goto err;
+ }
+
+ /*
+ * Check for minimum frame length, and make sure required FCoE
+ * and FC headers are pulled into the linear data area.
+ */
+ if (unlikely((skb->len < FCOE_MIN_FRAME) ||
+ !pskb_may_pull(skb, FCOE_HEADER_LEN)))
+ goto err;
+
+ skb_set_transport_header(skb, sizeof(struct fcoe_hdr));
+ fh = (struct fc_frame_header *) skb_transport_header(skb);
+
+ oxid = ntohs(fh->fh_ox_id);
+
+ fr = fcoe_dev_from_skb(skb);
+ fr->fr_dev = lport;
+ fr->ptype = ptype;
+
+ bg = &bnx2fc_global;
+ spin_lock_bh(&bg->fcoe_rx_list.lock);
+
+ __skb_queue_tail(&bg->fcoe_rx_list, skb);
+ if (bg->fcoe_rx_list.qlen == 1)
+ wake_up_process(bg->thread);
+
+ spin_unlock_bh(&bg->fcoe_rx_list.lock);
+
+ return 0;
+err:
+ kfree_skb(skb);
+ return -1;
+}
+
+static int bnx2fc_l2_rcv_thread(void *arg)
+{
+ struct fcoe_percpu_s *bg = arg;
+ struct sk_buff *skb;
+
+ set_user_nice(current, -20);
+ set_current_state(TASK_INTERRUPTIBLE);
+ while (!kthread_should_stop()) {
+ schedule();
+ set_current_state(TASK_RUNNING);
+ spin_lock_bh(&bg->fcoe_rx_list.lock);
+ while ((skb = __skb_dequeue(&bg->fcoe_rx_list)) != NULL) {
+ spin_unlock_bh(&bg->fcoe_rx_list.lock);
+ bnx2fc_recv_frame(skb);
+ spin_lock_bh(&bg->fcoe_rx_list.lock);
+ }
+ spin_unlock_bh(&bg->fcoe_rx_list.lock);
+ set_current_state(TASK_INTERRUPTIBLE);
+ }
+ set_current_state(TASK_RUNNING);
+ return 0;
+}
+
+
+static void bnx2fc_recv_frame(struct sk_buff *skb)
+{
+ u32 fr_len;
+ struct fc_lport *lport;
+ struct fcoe_rcv_info *fr;
+ struct fcoe_dev_stats *stats;
+ struct fc_frame_header *fh;
+ struct fcoe_crc_eof crc_eof;
+ struct fc_frame *fp;
+ struct fc_lport *vn_port;
+ struct fcoe_port *port;
+ u8 *mac = NULL;
+ u8 *dest_mac = NULL;
+ struct fcoe_hdr *hp;
+
+ fr = fcoe_dev_from_skb(skb);
+ lport = fr->fr_dev;
+ if (unlikely(lport == NULL)) {
+ printk(KERN_ALERT PFX "Invalid lport struct\n");
+ kfree_skb(skb);
+ return;
+ }
+
+ if (skb_is_nonlinear(skb))
+ skb_linearize(skb);
+ mac = eth_hdr(skb)->h_source;
+ dest_mac = eth_hdr(skb)->h_dest;
+
+ /* Pull the header */
+ hp = (struct fcoe_hdr *) skb_network_header(skb);
+ fh = (struct fc_frame_header *) skb_transport_header(skb);
+ skb_pull(skb, sizeof(struct fcoe_hdr));
+ fr_len = skb->len - sizeof(struct fcoe_crc_eof);
+
+ stats = per_cpu_ptr(lport->dev_stats, get_cpu());
+ stats->RxFrames++;
+ stats->RxWords += fr_len / FCOE_WORD_TO_BYTE;
+
+ fp = (struct fc_frame *)skb;
+ fc_frame_init(fp);
+ fr_dev(fp) = lport;
+ fr_sof(fp) = hp->fcoe_sof;
+ if (skb_copy_bits(skb, fr_len, &crc_eof, sizeof(crc_eof))) {
+ put_cpu();
+ kfree_skb(skb);
+ return;
+ }
+ fr_eof(fp) = crc_eof.fcoe_eof;
+ fr_crc(fp) = crc_eof.fcoe_crc32;
+ if (pskb_trim(skb, fr_len)) {
+ put_cpu();
+ kfree_skb(skb);
+ return;
+ }
+
+ fh = fc_frame_header_get(fp);
+
+ vn_port = fc_vport_id_lookup(lport, ntoh24(fh->fh_d_id));
+ if (vn_port) {
+ port = lport_priv(vn_port);
+ if (compare_ether_addr(port->data_src_addr, dest_mac)
+ != 0) {
+ BNX2FC_HBA_DBG(lport, "fpma mismatch\n");
+ put_cpu();
+ kfree_skb(skb);
+ return;
+ }
+ }
+ if (fh->fh_r_ctl == FC_RCTL_DD_SOL_DATA &&
+ fh->fh_type == FC_TYPE_FCP) {
+ /* Drop FCP data. We dont this in L2 path */
+ put_cpu();
+ kfree_skb(skb);
+ return;
+ }
+ if (fh->fh_r_ctl == FC_RCTL_ELS_REQ &&
+ fh->fh_type == FC_TYPE_ELS) {
+ switch (fc_frame_payload_op(fp)) {
+ case ELS_LOGO:
+ if (ntoh24(fh->fh_s_id) == FC_FID_FLOGI) {
+ /* drop non-FIP LOGO */
+ put_cpu();
+ kfree_skb(skb);
+ return;
+ }
+ break;
+ }
+ }
+ if (le32_to_cpu(fr_crc(fp)) !=
+ ~crc32(~0, skb->data, fr_len)) {
+ if (stats->InvalidCRCCount < 5)
+ printk(KERN_WARNING PFX "dropping frame with "
+ "CRC error\n");
+ stats->InvalidCRCCount++;
+ put_cpu();
+ kfree_skb(skb);
+ return;
+ }
+ put_cpu();
+ fc_exch_recv(lport, fp);
+}
+
+/**
+ * bnx2fc_percpu_io_thread - thread per cpu for ios
+ *
+ * @arg: ptr to bnx2fc_percpu_info structure
+ */
+int bnx2fc_percpu_io_thread(void *arg)
+{
+ struct bnx2fc_percpu_s *p = arg;
+ struct bnx2fc_work *work, *tmp;
+ LIST_HEAD(work_list);
+
+ set_user_nice(current, -20);
+ set_current_state(TASK_INTERRUPTIBLE);
+ while (!kthread_should_stop()) {
+ schedule();
+ set_current_state(TASK_RUNNING);
+ spin_lock_bh(&p->fp_work_lock);
+ while (!list_empty(&p->work_list)) {
+ list_splice_init(&p->work_list, &work_list);
+ spin_unlock_bh(&p->fp_work_lock);
+
+ list_for_each_entry_safe(work, tmp, &work_list, list) {
+ list_del_init(&work->list);
+ bnx2fc_process_cq_compl(work->tgt, work->wqe);
+ kfree(work);
+ }
+
+ spin_lock_bh(&p->fp_work_lock);
+ }
+ spin_unlock_bh(&p->fp_work_lock);
+ set_current_state(TASK_INTERRUPTIBLE);
+ }
+ set_current_state(TASK_RUNNING);
+
+ return 0;
+}
+
+static struct fc_host_statistics *bnx2fc_get_host_stats(struct Scsi_Host *shost)
+{
+ struct fc_host_statistics *bnx2fc_stats;
+ struct fc_lport *lport = shost_priv(shost);
+ struct fcoe_port *port = lport_priv(lport);
+ struct bnx2fc_hba *hba = port->priv;
+ struct fcoe_statistics_params *fw_stats;
+ int rc = 0;
+
+ fw_stats = (struct fcoe_statistics_params *)hba->stats_buffer;
+ if (!fw_stats)
+ return NULL;
+
+ bnx2fc_stats = fc_get_host_stats(shost);
+
+ init_completion(&hba->stat_req_done);
+ if (bnx2fc_send_stat_req(hba))
+ return bnx2fc_stats;
+ rc = wait_for_completion_timeout(&hba->stat_req_done, (2 * HZ));
+ if (!rc) {
+ BNX2FC_HBA_DBG(lport, "FW stat req timed out\n");
+ return bnx2fc_stats;
+ }
+ bnx2fc_stats->invalid_crc_count += fw_stats->rx_stat1.fc_crc_cnt;
+ bnx2fc_stats->tx_frames += fw_stats->tx_stat.fcoe_tx_pkt_cnt;
+ bnx2fc_stats->tx_words += (fw_stats->tx_stat.fcoe_tx_byte_cnt) / 4;
+ bnx2fc_stats->rx_frames += fw_stats->rx_stat0.fcoe_rx_pkt_cnt;
+ bnx2fc_stats->rx_words += (fw_stats->rx_stat0.fcoe_rx_byte_cnt) / 4;
+
+ bnx2fc_stats->dumped_frames = 0;
+ bnx2fc_stats->lip_count = 0;
+ bnx2fc_stats->nos_count = 0;
+ bnx2fc_stats->loss_of_sync_count = 0;
+ bnx2fc_stats->loss_of_signal_count = 0;
+ bnx2fc_stats->prim_seq_protocol_err_count = 0;
+
+ return bnx2fc_stats;
+}
+
+static int bnx2fc_shost_config(struct fc_lport *lport, struct device *dev)
+{
+ struct fcoe_port *port = lport_priv(lport);
+ struct bnx2fc_hba *hba = port->priv;
+ struct Scsi_Host *shost = lport->host;
+ int rc = 0;
+
+ shost->max_cmd_len = BNX2FC_MAX_CMD_LEN;
+ shost->max_lun = BNX2FC_MAX_LUN;
+ shost->max_id = BNX2FC_MAX_FCP_TGT;
+ shost->max_channel = 0;
+ if (lport->vport)
+ shost->transportt = bnx2fc_vport_xport_template;
+ else
+ shost->transportt = bnx2fc_transport_template;
+
+ /* Add the new host to SCSI-ml */
+ rc = scsi_add_host(lport->host, dev);
+ if (rc) {
+ printk(KERN_ERR PFX "Error on scsi_add_host\n");
+ return rc;
+ }
+ if (!lport->vport)
+ fc_host_max_npiv_vports(lport->host) = USHRT_MAX;
+ sprintf(fc_host_symbolic_name(lport->host), "%s v%s over %s",
+ BNX2FC_NAME, BNX2FC_VERSION,
+ hba->netdev->name);
+
+ return 0;
+}
+
+static int bnx2fc_mfs_update(struct fc_lport *lport)
+{
+ struct fcoe_port *port = lport_priv(lport);
+ struct bnx2fc_hba *hba = port->priv;
+ struct net_device *netdev = hba->netdev;
+ u32 mfs;
+ u32 max_mfs;
+
+ mfs = netdev->mtu - (sizeof(struct fcoe_hdr) +
+ sizeof(struct fcoe_crc_eof));
+ max_mfs = BNX2FC_MAX_PAYLOAD + sizeof(struct fc_frame_header);
+ BNX2FC_HBA_DBG(lport, "mfs = %d, max_mfs = %d\n", mfs, max_mfs);
+ if (mfs > max_mfs)
+ mfs = max_mfs;
+
+ /* Adjust mfs to be a multiple of 256 bytes */
+ mfs = (((mfs - sizeof(struct fc_frame_header)) / BNX2FC_MIN_PAYLOAD) *
+ BNX2FC_MIN_PAYLOAD);
+ mfs = mfs + sizeof(struct fc_frame_header);
+
+ BNX2FC_HBA_DBG(lport, "Set MFS = %d\n", mfs);
+ if (fc_set_mfs(lport, mfs))
+ return -EINVAL;
+ return 0;
+}
+static void bnx2fc_link_speed_update(struct fc_lport *lport)
+{
+ struct fcoe_port *port = lport_priv(lport);
+ struct bnx2fc_hba *hba = port->priv;
+ struct net_device *netdev = hba->netdev;
+ struct ethtool_cmd ecmd = { ETHTOOL_GSET };
+
+ if (!dev_ethtool_get_settings(netdev, &ecmd)) {
+ lport->link_supported_speeds &=
+ ~(FC_PORTSPEED_1GBIT | FC_PORTSPEED_10GBIT);
+ if (ecmd.supported & (SUPPORTED_1000baseT_Half |
+ SUPPORTED_1000baseT_Full))
+ lport->link_supported_speeds |= FC_PORTSPEED_1GBIT;
+ if (ecmd.supported & SUPPORTED_10000baseT_Full)
+ lport->link_supported_speeds |= FC_PORTSPEED_10GBIT;
+
+ if (ecmd.speed == SPEED_1000)
+ lport->link_speed = FC_PORTSPEED_1GBIT;
+ if (ecmd.speed == SPEED_10000)
+ lport->link_speed = FC_PORTSPEED_10GBIT;
+ }
+ return;
+}
+static int bnx2fc_link_ok(struct fc_lport *lport)
+{
+ struct fcoe_port *port = lport_priv(lport);
+ struct bnx2fc_hba *hba = port->priv;
+ struct net_device *dev = hba->phys_dev;
+ int rc = 0;
+
+ if ((dev->flags & IFF_UP) && netif_carrier_ok(dev))
+ clear_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state);
+ else {
+ set_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state);
+ rc = -1;
+ }
+ return rc;
+}
+
+/**
+ * bnx2fc_get_link_state - get network link state
+ *
+ * @hba: adapter instance pointer
+ *
+ * updates adapter structure flag based on netdev state
+ */
+void bnx2fc_get_link_state(struct bnx2fc_hba *hba)
+{
+ if (test_bit(__LINK_STATE_NOCARRIER, &hba->netdev->state))
+ set_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state);
+ else
+ clear_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state);
+}
+
+static int bnx2fc_net_config(struct fc_lport *lport)
+{
+ struct bnx2fc_hba *hba;
+ struct fcoe_port *port;
+ u64 wwnn, wwpn;
+
+ port = lport_priv(lport);
+ hba = port->priv;
+
+ /* require support for get_pauseparam ethtool op. */
+ if (!hba->phys_dev->ethtool_ops ||
+ !hba->phys_dev->ethtool_ops->get_pauseparam)
+ return -EOPNOTSUPP;
+
+ if (bnx2fc_mfs_update(lport))
+ return -EINVAL;
+
+ skb_queue_head_init(&port->fcoe_pending_queue);
+ port->fcoe_pending_queue_active = 0;
+ setup_timer(&port->timer, fcoe_queue_timer, (unsigned long) lport);
+
+ bnx2fc_link_speed_update(lport);
+
+ if (!lport->vport) {
+ wwnn = fcoe_wwn_from_mac(hba->ctlr.ctl_src_addr, 1, 0);
+ BNX2FC_HBA_DBG(lport, "WWNN = 0x%llx\n", wwnn);
+ fc_set_wwnn(lport, wwnn);
+
+ wwpn = fcoe_wwn_from_mac(hba->ctlr.ctl_src_addr, 2, 0);
+ BNX2FC_HBA_DBG(lport, "WWPN = 0x%llx\n", wwpn);
+ fc_set_wwpn(lport, wwpn);
+ }
+
+ return 0;
+}
+
+static void bnx2fc_destroy_timer(unsigned long data)
+{
+ struct bnx2fc_hba *hba = (struct bnx2fc_hba *)data;
+
+ BNX2FC_HBA_DBG(hba->ctlr.lp, "ERROR:bnx2fc_destroy_timer - "
+ "Destroy compl not received!!\n");
+ hba->flags |= BNX2FC_FLAG_DESTROY_CMPL;
+ wake_up_interruptible(&hba->destroy_wait);
+}
+
+/**
+ * bnx2fc_indicate_netevent - Generic netdev event handler
+ *
+ * @context: adapter structure pointer
+ * @event: event type
+ *
+ * Handles NETDEV_UP, NETDEV_DOWN, NETDEV_GOING_DOWN,NETDEV_CHANGE and
+ * NETDEV_CHANGE_MTU events
+ */
+static void bnx2fc_indicate_netevent(void *context, unsigned long event)
+{
+ struct bnx2fc_hba *hba = (struct bnx2fc_hba *)context;
+ struct fc_lport *lport = hba->ctlr.lp;
+ struct fc_lport *vport;
+ u32 link_possible = 1;
+
+ if (!test_bit(BNX2FC_CREATE_DONE, &hba->init_done)) {
+ BNX2FC_MISC_DBG("driver not ready. event=%s %ld\n",
+ hba->netdev->name, event);
+ return;
+ }
+
+ /*
+ * ASSUMPTION:
+ * indicate_netevent cannot be called from cnic unless bnx2fc
+ * does register_device
+ */
+ BUG_ON(!lport);
+
+ BNX2FC_HBA_DBG(lport, "enter netevent handler - event=%s %ld\n",
+ hba->netdev->name, event);
+
+ switch (event) {
+ case NETDEV_UP:
+ BNX2FC_HBA_DBG(lport, "Port up, adapter_state = %ld\n",
+ hba->adapter_state);
+ if (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state))
+ printk(KERN_ERR "indicate_netevent: "\
+ "adapter is not UP!!\n");
+ /* fall thru to update mfs if MTU has changed */
+ case NETDEV_CHANGEMTU:
+ BNX2FC_HBA_DBG(lport, "NETDEV_CHANGEMTU event\n");
+ bnx2fc_mfs_update(lport);
+ mutex_lock(&lport->lp_mutex);
+ list_for_each_entry(vport, &lport->vports, list)
+ bnx2fc_mfs_update(vport);
+ mutex_unlock(&lport->lp_mutex);
+ break;
+
+ case NETDEV_DOWN:
+ BNX2FC_HBA_DBG(lport, "Port down\n");
+ clear_bit(ADAPTER_STATE_GOING_DOWN, &hba->adapter_state);
+ clear_bit(ADAPTER_STATE_UP, &hba->adapter_state);
+ link_possible = 0;
+ break;
+
+ case NETDEV_GOING_DOWN:
+ BNX2FC_HBA_DBG(lport, "Port going down\n");
+ set_bit(ADAPTER_STATE_GOING_DOWN, &hba->adapter_state);
+ link_possible = 0;
+ break;
+
+ case NETDEV_CHANGE:
+ BNX2FC_HBA_DBG(lport, "NETDEV_CHANGE\n");
+ break;
+
+ default:
+ printk(KERN_ERR PFX "Unkonwn netevent %ld", event);
+ return;
+ }
+
+ bnx2fc_link_speed_update(lport);
+
+ if (link_possible && !bnx2fc_link_ok(lport)) {
+ printk(KERN_ERR "indicate_netevent: call ctlr_link_up\n");
+ fcoe_ctlr_link_up(&hba->ctlr);
+ } else {
+ printk(KERN_ERR "indicate_netevent: call ctlr_link_down\n");
+ if (fcoe_ctlr_link_down(&hba->ctlr)) {
+ clear_bit(ADAPTER_STATE_READY, &hba->adapter_state);
+ mutex_lock(&lport->lp_mutex);
+ list_for_each_entry(vport, &lport->vports, list)
+ fc_host_port_type(vport->host) =
+ FC_PORTTYPE_UNKNOWN;
+ mutex_unlock(&lport->lp_mutex);
+ fc_host_port_type(lport->host) = FC_PORTTYPE_UNKNOWN;
+ per_cpu_ptr(lport->dev_stats,
+ get_cpu())->LinkFailureCount++;
+ put_cpu();
+ fcoe_clean_pending_queue(lport);
+
+ init_waitqueue_head(&hba->shutdown_wait);
+ BNX2FC_HBA_DBG(lport, "indicate_netevent "
+ "num_ofld_sess = %d\n",
+ hba->num_ofld_sess);
+ hba->wait_for_link_down = 1;
+ BNX2FC_HBA_DBG(lport, "waiting for uploads to "
+ "compl proc = %s\n",
+ current->comm);
+ wait_event_interruptible(hba->shutdown_wait,
+ (hba->num_ofld_sess == 0));
+ BNX2FC_HBA_DBG(lport, "wakeup - num_ofld_sess = %d\n",
+ hba->num_ofld_sess);
+ hba->wait_for_link_down = 0;
+
+ if (signal_pending(current))
+ flush_signals(current);
+ }
+ }
+}
+
+static int bnx2fc_libfc_config(struct fc_lport *lport)
+{
+
+ /* Set the function pointers set by bnx2fc driver */
+ memcpy(&lport->tt, &bnx2fc_libfc_fcn_templ,
+ sizeof(struct libfc_function_template));
+ fc_elsct_init(lport);
+ fc_exch_init(lport);
+ fc_rport_init(lport);
+ fc_disc_init(lport);
+ return 0;
+}
+
+static int bnx2fc_em_config(struct fc_lport *lport)
+{
+ struct fcoe_port *port = lport_priv(lport);
+ struct bnx2fc_hba *hba = port->priv;
+
+ if (!fc_exch_mgr_alloc(lport, FC_CLASS_3, FCOE_MIN_XID,
+ FCOE_MAX_XID, NULL)) {
+ printk(KERN_ERR PFX "em_config:fc_exch_mgr_alloc failed\n");
+ return -ENOMEM;
+ }
+
+ hba->cmd_mgr = bnx2fc_cmd_mgr_alloc(hba, BNX2FC_MIN_XID,
+ BNX2FC_MAX_XID);
+
+ if (!hba->cmd_mgr) {
+ printk(KERN_ERR PFX "em_config:bnx2fc_cmd_mgr_alloc failed\n");
+ fc_exch_mgr_free(lport);
+ return -ENOMEM;
+ }
+ return 0;
+}
+
+static int bnx2fc_lport_config(struct fc_lport *lport)
+{
+ lport->link_up = 0;
+ lport->qfull = 0;
+ lport->max_retry_count = 3;
+ lport->max_rport_retry_count = 3;
+ lport->e_d_tov = 2 * 1000;
+ lport->r_a_tov = 10 * 1000;
+
+ /* REVISIT: enable when supporting tape devices
+ lport->service_params = (FCP_SPPF_INIT_FCN | FCP_SPPF_RD_XRDY_DIS |
+ FCP_SPPF_RETRY | FCP_SPPF_CONF_COMPL);
+ */
+ lport->service_params = (FCP_SPPF_INIT_FCN | FCP_SPPF_RD_XRDY_DIS);
+ lport->does_npiv = 1;
+
+ memset(&lport->rnid_gen, 0, sizeof(struct fc_els_rnid_gen));
+ lport->rnid_gen.rnid_atype = BNX2FC_RNID_HBA;
+
+ /* alloc stats structure */
+ if (fc_lport_init_stats(lport))
+ return -ENOMEM;
+
+ /* Finish fc_lport configuration */
+ fc_lport_config(lport);
+
+ return 0;
+}
+
+/**
+ * bnx2fc_fip_recv - handle a received FIP frame.
+ *
+ * @skb: the received skb
+ * @dev: associated &net_device
+ * @ptype: the &packet_type structure which was used to register this handler.
+ * @orig_dev: original receive &net_device, in case @ dev is a bond.
+ *
+ * Returns: 0 for success
+ */
+static int bnx2fc_fip_recv(struct sk_buff *skb, struct net_device *dev,
+ struct packet_type *ptype,
+ struct net_device *orig_dev)
+{
+ struct bnx2fc_hba *hba;
+ hba = container_of(ptype, struct bnx2fc_hba, fip_packet_type);
+ fcoe_ctlr_recv(&hba->ctlr, skb);
+ return 0;
+}
+
+/**
+ * bnx2fc_update_src_mac - Update Ethernet MAC filters.
+ *
+ * @fip: FCoE controller.
+ * @old: Unicast MAC address to delete if the MAC is non-zero.
+ * @new: Unicast MAC address to add.
+ *
+ * Remove any previously-set unicast MAC filter.
+ * Add secondary FCoE MAC address filter for our OUI.
+ */
+static void bnx2fc_update_src_mac(struct fc_lport *lport, u8 *addr)
+{
+ struct fcoe_port *port = lport_priv(lport);
+
+ memcpy(port->data_src_addr, addr, ETH_ALEN);
+}
+
+/**
+ * bnx2fc_get_src_mac - return the ethernet source address for an lport
+ *
+ * @lport: libfc port
+ */
+static u8 *bnx2fc_get_src_mac(struct fc_lport *lport)
+{
+ struct fcoe_port *port;
+
+ port = (struct fcoe_port *)lport_priv(lport);
+ return port->data_src_addr;
+}
+
+/**
+ * bnx2fc_fip_send - send an Ethernet-encapsulated FIP frame.
+ *
+ * @fip: FCoE controller.
+ * @skb: FIP Packet.
+ */
+static void bnx2fc_fip_send(struct fcoe_ctlr *fip, struct sk_buff *skb)
+{
+ skb->dev = bnx2fc_from_ctlr(fip)->netdev;
+ dev_queue_xmit(skb);
+}
+
+static int bnx2fc_vport_create(struct fc_vport *vport, bool disabled)
+{
+ struct Scsi_Host *shost = vport_to_shost(vport);
+ struct fc_lport *n_port = shost_priv(shost);
+ struct fcoe_port *port = lport_priv(n_port);
+ struct bnx2fc_hba *hba = port->priv;
+ struct net_device *netdev = hba->netdev;
+ struct fc_lport *vn_port;
+
+ if (!test_bit(BNX2FC_FW_INIT_DONE, &hba->init_done)) {
+ printk(KERN_ERR PFX "vn ports cannot be created on"
+ "this hba\n");
+ return -EIO;
+ }
+ mutex_lock(&bnx2fc_dev_lock);
+ vn_port = bnx2fc_if_create(hba, &vport->dev, 1);
+ mutex_unlock(&bnx2fc_dev_lock);
+
+ if (IS_ERR(vn_port)) {
+ printk(KERN_ERR PFX "bnx2fc_vport_create (%s) failed\n",
+ netdev->name);
+ return -EIO;
+ }
+
+ if (disabled) {
+ fc_vport_set_state(vport, FC_VPORT_DISABLED);
+ } else {
+ vn_port->boot_time = jiffies;
+ fc_lport_init(vn_port);
+ fc_fabric_login(vn_port);
+ fc_vport_setlink(vn_port);
+ }
+ return 0;
+}
+
+static int bnx2fc_vport_destroy(struct fc_vport *vport)
+{
+ struct Scsi_Host *shost = vport_to_shost(vport);
+ struct fc_lport *n_port = shost_priv(shost);
+ struct fc_lport *vn_port = vport->dd_data;
+ struct fcoe_port *port = lport_priv(vn_port);
+
+ mutex_lock(&n_port->lp_mutex);
+ list_del(&vn_port->list);
+ mutex_unlock(&n_port->lp_mutex);
+ queue_work(bnx2fc_wq, &port->destroy_work);
+ return 0;
+}
+
+static int bnx2fc_vport_disable(struct fc_vport *vport, bool disable)
+{
+ struct fc_lport *lport = vport->dd_data;
+
+ if (disable) {
+ fc_vport_set_state(vport, FC_VPORT_DISABLED);
+ fc_fabric_logoff(lport);
+ } else {
+ lport->boot_time = jiffies;
+ fc_fabric_login(lport);
+ fc_vport_setlink(lport);
+ }
+ return 0;
+}
+
+
+static int bnx2fc_netdev_setup(struct bnx2fc_hba *hba)
+{
+ struct net_device *netdev = hba->netdev;
+ struct net_device *physdev = hba->phys_dev;
+ struct netdev_hw_addr *ha;
+ int sel_san_mac = 0;
+
+ /* Do not support for bonding device */
+ if ((netdev->priv_flags & IFF_MASTER_ALB) ||
+ (netdev->priv_flags & IFF_SLAVE_INACTIVE) ||
+ (netdev->priv_flags & IFF_MASTER_8023AD)) {
+ return -EOPNOTSUPP;
+ }
+
+ /* setup Source MAC Address */
+ rcu_read_lock();
+ for_each_dev_addr(physdev, ha) {
+ BNX2FC_MISC_DBG("net_config: ha->type = %d, fip_mac = ",
+ ha->type);
+ printk(KERN_INFO "%2x:%2x:%2x:%2x:%2x:%2x\n", ha->addr[0],
+ ha->addr[1], ha->addr[2], ha->addr[3],
+ ha->addr[4], ha->addr[5]);
+
+ if ((ha->type == NETDEV_HW_ADDR_T_SAN) &&
+ (is_valid_ether_addr(ha->addr))) {
+ memcpy(hba->ctlr.ctl_src_addr, ha->addr, ETH_ALEN);
+ sel_san_mac = 1;
+ BNX2FC_MISC_DBG("Found SAN MAC\n");
+ }
+ }
+ rcu_read_unlock();
+
+ if (!sel_san_mac)
+ return -ENODEV;
+
+ hba->fip_packet_type.func = bnx2fc_fip_recv;
+ hba->fip_packet_type.type = htons(ETH_P_FIP);
+ hba->fip_packet_type.dev = netdev;
+ dev_add_pack(&hba->fip_packet_type);
+
+ hba->fcoe_packet_type.func = bnx2fc_rcv;
+ hba->fcoe_packet_type.type = __constant_htons(ETH_P_FCOE);
+ hba->fcoe_packet_type.dev = netdev;
+ dev_add_pack(&hba->fcoe_packet_type);
+
+ return 0;
+}
+
+static int bnx2fc_attach_transport(void)
+{
+ bnx2fc_transport_template =
+ fc_attach_transport(&bnx2fc_transport_function);
+
+ if (bnx2fc_transport_template == NULL) {
+ printk(KERN_ERR PFX "Failed to attach FC transport\n");
+ return -ENODEV;
+ }
+
+ bnx2fc_vport_xport_template =
+ fc_attach_transport(&bnx2fc_vport_xport_function);
+ if (bnx2fc_vport_xport_template == NULL) {
+ printk(KERN_ERR PFX
+ "Failed to attach FC transport for vport\n");
+ fc_release_transport(bnx2fc_transport_template);
+ bnx2fc_transport_template = NULL;
+ return -ENODEV;
+ }
+ return 0;
+}
+static void bnx2fc_release_transport(void)
+{
+ fc_release_transport(bnx2fc_transport_template);
+ fc_release_transport(bnx2fc_vport_xport_template);
+ bnx2fc_transport_template = NULL;
+ bnx2fc_vport_xport_template = NULL;
+}
+
+static void bnx2fc_interface_release(struct kref *kref)
+{
+ struct bnx2fc_hba *hba;
+ struct net_device *netdev;
+ struct net_device *phys_dev;
+
+ hba = container_of(kref, struct bnx2fc_hba, kref);
+ BNX2FC_HBA_DBG(hba->ctlr.lp, "Interface is being released\n");
+
+ netdev = hba->netdev;
+ phys_dev = hba->phys_dev;
+
+ /* tear-down FIP controller */
+ if (test_and_clear_bit(BNX2FC_CTLR_INIT_DONE, &hba->init_done))
+ fcoe_ctlr_destroy(&hba->ctlr);
+
+ /* Free the command manager */
+ if (hba->cmd_mgr) {
+ bnx2fc_cmd_mgr_free(hba->cmd_mgr);
+ hba->cmd_mgr = NULL;
+ }
+ dev_put(netdev);
+ module_put(THIS_MODULE);
+}
+
+static inline void bnx2fc_interface_get(struct bnx2fc_hba *hba)
+{
+ kref_get(&hba->kref);
+}
+
+static inline void bnx2fc_interface_put(struct bnx2fc_hba *hba)
+{
+ kref_put(&hba->kref, bnx2fc_interface_release);
+}
+static void bnx2fc_interface_destroy(struct bnx2fc_hba *hba)
+{
+ bnx2fc_unbind_pcidev(hba);
+ kfree(hba);
+}
+
+/**
+ * bnx2fc_interface_create - create a new fcoe instance
+ *
+ * @cnic: pointer to cnic device
+ *
+ * Creates a new FCoE instance on the given device which include allocating
+ * hba structure, scsi_host and lport structures.
+ */
+static struct bnx2fc_hba *bnx2fc_interface_create(struct cnic_dev *cnic)
+{
+ struct bnx2fc_hba *hba;
+ int rc;
+
+ hba = kzalloc(sizeof(*hba), GFP_KERNEL);
+ if (!hba) {
+ printk(KERN_ERR PFX "Unable to allocate hba structure\n");
+ return NULL;
+ }
+ spin_lock_init(&hba->hba_lock);
+ mutex_init(&hba->hba_mutex);
+
+ hba->cnic = cnic;
+ rc = bnx2fc_bind_pcidev(hba);
+ if (rc)
+ goto bind_err;
+ hba->phys_dev = cnic->netdev;
+ /* will get overwritten after we do vlan discovery */
+ hba->netdev = hba->phys_dev;
+
+ init_waitqueue_head(&hba->shutdown_wait);
+ init_waitqueue_head(&hba->destroy_wait);
+
+ return hba;
+bind_err:
+ printk(KERN_ERR PFX "create_interface: bind error\n");
+ kfree(hba);
+ return NULL;
+}
+
+static int bnx2fc_interface_setup(struct bnx2fc_hba *hba,
+ enum fip_state fip_mode)
+{
+ int rc = 0;
+ struct net_device *netdev = hba->netdev;
+ struct fcoe_ctlr *fip = &hba->ctlr;
+
+ dev_hold(netdev);
+ kref_init(&hba->kref);
+
+ hba->flags = 0;
+
+ /* Initialize FIP */
+ memset(fip, 0, sizeof(*fip));
+ fcoe_ctlr_init(fip, fip_mode);
+ hba->ctlr.send = bnx2fc_fip_send;
+ hba->ctlr.update_mac = bnx2fc_update_src_mac;
+ hba->ctlr.get_src_addr = bnx2fc_get_src_mac;
+ set_bit(BNX2FC_CTLR_INIT_DONE, &hba->init_done);
+
+ rc = bnx2fc_netdev_setup(hba);
+ if (rc)
+ goto setup_err;
+
+ hba->next_conn_id = 0;
+
+ memset(hba->tgt_ofld_list, 0, sizeof(hba->tgt_ofld_list));
+ hba->num_ofld_sess = 0;
+
+ return 0;
+
+setup_err:
+ fcoe_ctlr_destroy(&hba->ctlr);
+ dev_put(netdev);
+ bnx2fc_interface_put(hba);
+ return rc;
+}
+
+/**
+ * bnx2fc_if_create - Create FCoE instance on a given interface
+ *
+ * @hba: FCoE interface to create a local port on
+ * @parent: Device pointer to be the parent in sysfs for the SCSI host
+ * @npiv: Indicates if the port is vport or not
+ *
+ * Creates a fc_lport instance and a Scsi_Host instance and configure them.
+ *
+ * Returns: Allocated fc_lport or an error pointer
+ */
+static struct fc_lport *bnx2fc_if_create(struct bnx2fc_hba *hba,
+ struct device *parent, int npiv)
+{
+ struct fc_lport *lport = NULL;
+ struct fcoe_port *port;
+ struct Scsi_Host *shost;
+ struct fc_vport *vport = dev_to_vport(parent);
+ int rc = 0;
+
+ /* Allocate Scsi_Host structure */
+ if (!npiv) {
+ lport = libfc_host_alloc(&bnx2fc_shost_template,
+ sizeof(struct fcoe_port));
+ } else {
+ lport = libfc_vport_create(vport,
+ sizeof(struct fcoe_port));
+ }
+
+ if (!lport) {
+ printk(KERN_ERR PFX "could not allocate scsi host structure\n");
+ return NULL;
+ }
+ shost = lport->host;
+ port = lport_priv(lport);
+ port->lport = lport;
+ port->priv = hba;
+ INIT_WORK(&port->destroy_work, bnx2fc_destroy_work);
+
+ /* Configure fcoe_port */
+ rc = bnx2fc_lport_config(lport);
+ if (rc)
+ goto lp_config_err;
+
+ if (npiv) {
+ vport = dev_to_vport(parent);
+ printk(KERN_ERR PFX "Setting vport names, 0x%llX 0x%llX\n",
+ vport->node_name, vport->port_name);
+ fc_set_wwnn(lport, vport->node_name);
+ fc_set_wwpn(lport, vport->port_name);
+ }
+ /* Configure netdev and networking properties of the lport */
+ rc = bnx2fc_net_config(lport);
+ if (rc) {
+ printk(KERN_ERR PFX "Error on bnx2fc_net_config\n");
+ goto lp_config_err;
+ }
+
+ rc = bnx2fc_shost_config(lport, parent);
+ if (rc) {
+ printk(KERN_ERR PFX "Couldnt configure shost for %s\n",
+ hba->netdev->name);
+ goto lp_config_err;
+ }
+
+ /* Initialize the libfc library */
+ rc = bnx2fc_libfc_config(lport);
+ if (rc) {
+ printk(KERN_ERR PFX "Couldnt configure libfc\n");
+ goto shost_err;
+ }
+ fc_host_port_type(lport->host) = FC_PORTTYPE_UNKNOWN;
+
+ /* Allocate exchange manager */
+ if (!npiv) {
+ rc = bnx2fc_em_config(lport);
+ if (rc) {
+ printk(KERN_ERR PFX "Error on bnx2fc_em_config\n");
+ goto shost_err;
+ }
+ }
+
+ bnx2fc_interface_get(hba);
+ return lport;
+
+shost_err:
+ scsi_remove_host(shost);
+lp_config_err:
+ scsi_host_put(lport->host);
+ return NULL;
+}
+
+static void bnx2fc_netdev_cleanup(struct bnx2fc_hba *hba)
+{
+ /* Dont listen for Ethernet packets anymore */
+ __dev_remove_pack(&hba->fcoe_packet_type);
+ __dev_remove_pack(&hba->fip_packet_type);
+ synchronize_net();
+}
+
+static void bnx2fc_if_destroy(struct fc_lport *lport)
+{
+ struct fcoe_port *port = lport_priv(lport);
+ struct bnx2fc_hba *hba = port->priv;
+
+ BNX2FC_HBA_DBG(hba->ctlr.lp, "ENTERED bnx2fc_if_destroy\n");
+ /* Stop the transmit retry timer */
+ del_timer_sync(&port->timer);
+
+ /* Free existing transmit skbs */
+ fcoe_clean_pending_queue(lport);
+
+ bnx2fc_interface_put(hba);
+
+ /* Free queued packets for the receive thread */
+ bnx2fc_clean_rx_queue(lport);
+
+ /* Detach from scsi-ml */
+ fc_remove_host(lport->host);
+ scsi_remove_host(lport->host);
+
+ /*
+ * Note that only the physical lport will have the exchange manager.
+ * for vports, this function is NOP
+ */
+ fc_exch_mgr_free(lport);
+
+ /* Free memory used by statistical counters */
+ fc_lport_free_stats(lport);
+
+ /* Release Scsi_Host */
+ scsi_host_put(lport->host);
+}
+
+/**
+ * bnx2fc_destroy - Destroy a bnx2fc FCoE interface
+ *
+ * @buffer: The name of the Ethernet interface to be destroyed
+ * @kp: The associated kernel parameter
+ *
+ * Called from sysfs.
+ *
+ * Returns: 0 for success
+ */
+static int bnx2fc_destroy(struct net_device *netdev)
+{
+ struct bnx2fc_hba *hba = NULL;
+ struct net_device *phys_dev;
+ int rc = 0;
+
+ if (!rtnl_trylock())
+ return restart_syscall();
+
+ mutex_lock(&bnx2fc_dev_lock);
+#ifdef CONFIG_SCSI_BNX2X_FCOE_MODULE
+ if (THIS_MODULE->state != MODULE_STATE_LIVE) {
+ rc = -ENODEV;
+ goto netdev_err;
+ }
+#endif
+ /* obtain physical netdev */
+ if (netdev->priv_flags & IFF_802_1Q_VLAN)
+ phys_dev = vlan_dev_real_dev(netdev);
+ else {
+ printk(KERN_ERR PFX "Not a vlan device\n");
+ rc = -ENODEV;
+ goto netdev_err;
+ }
+
+ hba = bnx2fc_hba_lookup(phys_dev);
+ if (!hba || !hba->ctlr.lp) {
+ rc = -ENODEV;
+ printk(KERN_ERR PFX "bnx2fc_destroy: hba or lport not found\n");
+ goto netdev_err;
+ }
+
+ if (!test_bit(BNX2FC_CREATE_DONE, &hba->init_done)) {
+ printk(KERN_ERR PFX "bnx2fc_destroy: Create not called\n");
+ goto netdev_err;
+ }
+
+ bnx2fc_netdev_cleanup(hba);
+
+ bnx2fc_stop(hba);
+
+ bnx2fc_if_destroy(hba->ctlr.lp);
+
+ destroy_workqueue(hba->timer_work_queue);
+
+ if (test_bit(BNX2FC_FW_INIT_DONE, &hba->init_done))
+ bnx2fc_fw_destroy(hba);
+
+ clear_bit(BNX2FC_CREATE_DONE, &hba->init_done);
+netdev_err:
+ mutex_unlock(&bnx2fc_dev_lock);
+ rtnl_unlock();
+ return rc;
+}
+
+static void bnx2fc_destroy_work(struct work_struct *work)
+{
+ struct fcoe_port *port;
+ struct fc_lport *lport;
+
+ port = container_of(work, struct fcoe_port, destroy_work);
+ lport = port->lport;
+
+ BNX2FC_HBA_DBG(lport, "Entered bnx2fc_destroy_work\n");
+
+ bnx2fc_port_shutdown(lport);
+ rtnl_lock();
+ mutex_lock(&bnx2fc_dev_lock);
+ bnx2fc_if_destroy(lport);
+ mutex_unlock(&bnx2fc_dev_lock);
+ rtnl_unlock();
+}
+
+static void bnx2fc_unbind_adapter_devices(struct bnx2fc_hba *hba)
+{
+ bnx2fc_free_fw_resc(hba);
+ bnx2fc_free_task_ctx(hba);
+}
+
+/**
+ * bnx2fc_bind_adapter_devices - binds bnx2fc adapter with the associated
+ * pci structure
+ *
+ * @hba: Adapter instance
+ */
+static int bnx2fc_bind_adapter_devices(struct bnx2fc_hba *hba)
+{
+ if (bnx2fc_setup_task_ctx(hba))
+ goto mem_err;
+
+ if (bnx2fc_setup_fw_resc(hba))
+ goto mem_err;
+
+ return 0;
+mem_err:
+ bnx2fc_unbind_adapter_devices(hba);
+ return -ENOMEM;
+}
+
+static int bnx2fc_bind_pcidev(struct bnx2fc_hba *hba)
+{
+ struct cnic_dev *cnic;
+
+ if (!hba->cnic) {
+ printk(KERN_ERR PFX "cnic is NULL\n");
+ return -ENODEV;
+ }
+ cnic = hba->cnic;
+ hba->pcidev = cnic->pcidev;
+ if (hba->pcidev)
+ pci_dev_get(hba->pcidev);
+
+ return 0;
+}
+
+static void bnx2fc_unbind_pcidev(struct bnx2fc_hba *hba)
+{
+ if (hba->pcidev)
+ pci_dev_put(hba->pcidev);
+ hba->pcidev = NULL;
+}
+
+
+
+/**
+ * bnx2fc_ulp_start - cnic callback to initialize & start adapter instance
+ *
+ * @handle: transport handle pointing to adapter struture
+ *
+ * This function maps adapter structure to pcidev structure and initiates
+ * firmware handshake to enable/initialize on-chip FCoE components.
+ * This bnx2fc - cnic interface api callback is used after following
+ * conditions are met -
+ * a) underlying network interface is up (marked by event NETDEV_UP
+ * from netdev
+ * b) bnx2fc adatper structure is registered.
+ */
+static void bnx2fc_ulp_start(void *handle)
+{
+ struct bnx2fc_hba *hba = handle;
+ struct fc_lport *lport = hba->ctlr.lp;
+
+ BNX2FC_MISC_DBG("Entered %s\n", __func__);
+ mutex_lock(&bnx2fc_dev_lock);
+
+ if (test_bit(BNX2FC_FW_INIT_DONE, &hba->init_done))
+ goto start_disc;
+
+ if (test_bit(BNX2FC_CREATE_DONE, &hba->init_done))
+ bnx2fc_fw_init(hba);
+
+start_disc:
+ mutex_unlock(&bnx2fc_dev_lock);
+
+ BNX2FC_MISC_DBG("bnx2fc started.\n");
+
+ /* Kick off Fabric discovery*/
+ if (test_bit(BNX2FC_CREATE_DONE, &hba->init_done)) {
+ printk(KERN_ERR PFX "ulp_init: start discovery\n");
+ lport->tt.frame_send = bnx2fc_xmit;
+ bnx2fc_start_disc(hba);
+ }
+}
+
+static void bnx2fc_port_shutdown(struct fc_lport *lport)
+{
+ BNX2FC_MISC_DBG("Entered %s\n", __func__);
+ fc_fabric_logoff(lport);
+ fc_lport_destroy(lport);
+}
+
+static void bnx2fc_stop(struct bnx2fc_hba *hba)
+{
+ struct fc_lport *lport;
+ struct fc_lport *vport;
+
+ BNX2FC_MISC_DBG("ENTERED %s - init_done = %ld\n", __func__,
+ hba->init_done);
+ if (test_bit(BNX2FC_FW_INIT_DONE, &hba->init_done) &&
+ test_bit(BNX2FC_CREATE_DONE, &hba->init_done)) {
+ lport = hba->ctlr.lp;
+ bnx2fc_port_shutdown(lport);
+ BNX2FC_HBA_DBG(lport, "bnx2fc_stop: waiting for %d "
+ "offloaded sessions\n",
+ hba->num_ofld_sess);
+ wait_event_interruptible(hba->shutdown_wait,
+ (hba->num_ofld_sess == 0));
+ mutex_lock(&lport->lp_mutex);
+ list_for_each_entry(vport, &lport->vports, list)
+ fc_host_port_type(vport->host) = FC_PORTTYPE_UNKNOWN;
+ mutex_unlock(&lport->lp_mutex);
+ fc_host_port_type(lport->host) = FC_PORTTYPE_UNKNOWN;
+ fcoe_ctlr_link_down(&hba->ctlr);
+ fcoe_clean_pending_queue(lport);
+
+ mutex_lock(&hba->hba_mutex);
+ clear_bit(ADAPTER_STATE_UP, &hba->adapter_state);
+ clear_bit(ADAPTER_STATE_GOING_DOWN, &hba->adapter_state);
+
+ clear_bit(ADAPTER_STATE_READY, &hba->adapter_state);
+ mutex_unlock(&hba->hba_mutex);
+ }
+}
+
+static int bnx2fc_fw_init(struct bnx2fc_hba *hba)
+{
+#define BNX2FC_INIT_POLL_TIME (1000 / HZ)
+ int rc = -1;
+ int i = HZ;
+
+ rc = bnx2fc_bind_adapter_devices(hba);
+ if (rc) {
+ printk(KERN_ALERT PFX
+ "bnx2fc_bind_adapter_devices failed - rc = %d\n", rc);
+ goto err_out;
+ }
+
+ rc = bnx2fc_send_fw_fcoe_init_msg(hba);
+ if (rc) {
+ printk(KERN_ALERT PFX
+ "bnx2fc_send_fw_fcoe_init_msg failed - rc = %d\n", rc);
+ goto err_unbind;
+ }
+
+ /*
+ * Wait until the adapter init message is complete, and adapter
+ * state is UP.
+ */
+ while (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state) && i--)
+ msleep(BNX2FC_INIT_POLL_TIME);
+
+ if (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state)) {
+ printk(KERN_ERR PFX "bnx2fc_start: %s failed to initialize. "
+ "Ignoring...\n",
+ hba->cnic->netdev->name);
+ rc = -1;
+ goto err_unbind;
+ }
+
+
+ /* Mark HBA to indicate that the FW INIT is done */
+ set_bit(BNX2FC_FW_INIT_DONE, &hba->init_done);
+ return 0;
+
+err_unbind:
+ bnx2fc_unbind_adapter_devices(hba);
+err_out:
+ return rc;
+}
+
+static void bnx2fc_fw_destroy(struct bnx2fc_hba *hba)
+{
+ if (test_and_clear_bit(BNX2FC_FW_INIT_DONE, &hba->init_done)) {
+ if (bnx2fc_send_fw_fcoe_destroy_msg(hba) == 0) {
+ init_timer(&hba->destroy_timer);
+ hba->destroy_timer.expires = BNX2FC_FW_TIMEOUT +
+ jiffies;
+ hba->destroy_timer.function = bnx2fc_destroy_timer;
+ hba->destroy_timer.data = (unsigned long)hba;
+ add_timer(&hba->destroy_timer);
+ wait_event_interruptible(hba->destroy_wait,
+ (hba->flags &
+ BNX2FC_FLAG_DESTROY_CMPL));
+ /* This should never happen */
+ if (signal_pending(current))
+ flush_signals(current);
+
+ del_timer_sync(&hba->destroy_timer);
+ }
+ bnx2fc_unbind_adapter_devices(hba);
+ }
+}
+
+/**
+ * bnx2fc_ulp_stop - cnic callback to shutdown adapter instance
+ *
+ * @handle: transport handle pointing to adapter structure
+ *
+ * Driver checks if adapter is already in shutdown mode, if not start
+ * the shutdown process.
+ */
+static void bnx2fc_ulp_stop(void *handle)
+{
+ struct bnx2fc_hba *hba = (struct bnx2fc_hba *)handle;
+
+ printk(KERN_ERR "ULP_STOP\n");
+
+ mutex_lock(&bnx2fc_dev_lock);
+ bnx2fc_stop(hba);
+ bnx2fc_fw_destroy(hba);
+ mutex_unlock(&bnx2fc_dev_lock);
+}
+
+static void bnx2fc_start_disc(struct bnx2fc_hba *hba)
+{
+ struct fc_lport *lport;
+ int wait_cnt = 0;
+
+ BNX2FC_MISC_DBG("Entered %s\n", __func__);
+ /* Kick off FIP/FLOGI */
+ if (!test_bit(BNX2FC_FW_INIT_DONE, &hba->init_done)) {
+ printk(KERN_ERR PFX "Init not done yet\n");
+ return;
+ }
+
+ lport = hba->ctlr.lp;
+ BNX2FC_HBA_DBG(lport, "calling fc_fabric_login\n");
+
+ if (!bnx2fc_link_ok(lport)) {
+ BNX2FC_HBA_DBG(lport, "ctlr_link_up\n");
+ fcoe_ctlr_link_up(&hba->ctlr);
+ fc_host_port_type(lport->host) = FC_PORTTYPE_NPORT;
+ set_bit(ADAPTER_STATE_READY, &hba->adapter_state);
+ }
+
+ /* wait for the FCF to be selected before issuing FLOGI */
+ while (!hba->ctlr.sel_fcf) {
+ msleep(250);
+ /* give up after 3 secs */
+ if (++wait_cnt > 12)
+ break;
+ }
+ fc_lport_init(lport);
+ fc_fabric_login(lport);
+}
+
+
+/**
+ * bnx2fc_ulp_init - Initialize an adapter instance
+ *
+ * @dev : cnic device handle
+ * Called from cnic_register_driver() context to initialize all
+ * enumerated cnic devices. This routine allocates adapter structure
+ * and other device specific resources.
+ */
+static void bnx2fc_ulp_init(struct cnic_dev *dev)
+{
+ struct bnx2fc_hba *hba;
+ int rc = 0;
+
+ BNX2FC_MISC_DBG("Entered %s\n", __func__);
+ /* bnx2fc works only when bnx2x is loaded */
+ if (!test_bit(CNIC_F_BNX2X_CLASS, &dev->flags)) {
+ printk(KERN_ERR PFX "bnx2fc FCoE not supported on %s,"
+ " flags: %lx\n",
+ dev->netdev->name, dev->flags);
+ return;
+ }
+
+ /* Configure FCoE interface */
+ hba = bnx2fc_interface_create(dev);
+ if (!hba) {
+ printk(KERN_ERR PFX "hba initialization failed\n");
+ return;
+ }
+
+ /* Add HBA to the adapter list */
+ mutex_lock(&bnx2fc_dev_lock);
+ list_add_tail(&hba->link, &adapter_list);
+ adapter_count++;
+ mutex_unlock(&bnx2fc_dev_lock);
+
+ clear_bit(BNX2FC_CNIC_REGISTERED, &hba->reg_with_cnic);
+ rc = dev->register_device(dev, CNIC_ULP_FCOE,
+ (void *) hba);
+ if (rc)
+ printk(KERN_ALERT PFX "register_device failed, rc = %d\n", rc);
+ else
+ set_bit(BNX2FC_CNIC_REGISTERED, &hba->reg_with_cnic);
+}
+
+
+static int bnx2fc_disable(struct net_device *netdev)
+{
+ struct bnx2fc_hba *hba;
+ struct net_device *phys_dev;
+ struct ethtool_drvinfo drvinfo;
+ int rc = 0;
+
+ if (!rtnl_trylock()) {
+ printk(KERN_ERR PFX "retrying for rtnl_lock\n");
+ return -EIO;
+ }
+
+ mutex_lock(&bnx2fc_dev_lock);
+
+ if (THIS_MODULE->state != MODULE_STATE_LIVE) {
+ rc = -ENODEV;
+ goto nodev;
+ }
+
+ /* obtain physical netdev */
+ if (netdev->priv_flags & IFF_802_1Q_VLAN)
+ phys_dev = vlan_dev_real_dev(netdev);
+ else {
+ printk(KERN_ERR PFX "Not a vlan device\n");
+ rc = -ENODEV;
+ goto nodev;
+ }
+
+ /* verify if the physical device is a netxtreme2 device */
+ if (phys_dev->ethtool_ops && phys_dev->ethtool_ops->get_drvinfo) {
+ memset(&drvinfo, 0, sizeof(drvinfo));
+ phys_dev->ethtool_ops->get_drvinfo(phys_dev, &drvinfo);
+ if (strcmp(drvinfo.driver, "bnx2x")) {
+ printk(KERN_ERR PFX "Not a netxtreme2 device\n");
+ rc = -ENODEV;
+ goto nodev;
+ }
+ } else {
+ printk(KERN_ERR PFX "unable to obtain drv_info\n");
+ rc = -ENODEV;
+ goto nodev;
+ }
+
+ printk(KERN_ERR PFX "phys_dev is netxtreme2 device\n");
+
+ /* obtain hba and initialize rest of the structure */
+ hba = bnx2fc_hba_lookup(phys_dev);
+ if (!hba || !hba->ctlr.lp) {
+ rc = -ENODEV;
+ printk(KERN_ERR PFX "bnx2fc_disable: hba or lport not found\n");
+ } else {
+ fcoe_ctlr_link_down(&hba->ctlr);
+ fcoe_clean_pending_queue(hba->ctlr.lp);
+ }
+
+nodev:
+ mutex_unlock(&bnx2fc_dev_lock);
+ rtnl_unlock();
+ return rc;
+}
+
+
+static int bnx2fc_enable(struct net_device *netdev)
+{
+ struct bnx2fc_hba *hba;
+ struct net_device *phys_dev;
+ struct ethtool_drvinfo drvinfo;
+ int rc = 0;
+
+ if (!rtnl_trylock()) {
+ printk(KERN_ERR PFX "retrying for rtnl_lock\n");
+ return -EIO;
+ }
+
+ BNX2FC_MISC_DBG("Entered %s\n", __func__);
+ mutex_lock(&bnx2fc_dev_lock);
+
+ if (THIS_MODULE->state != MODULE_STATE_LIVE) {
+ rc = -ENODEV;
+ goto nodev;
+ }
+
+ /* obtain physical netdev */
+ if (netdev->priv_flags & IFF_802_1Q_VLAN)
+ phys_dev = vlan_dev_real_dev(netdev);
+ else {
+ printk(KERN_ERR PFX "Not a vlan device\n");
+ rc = -ENODEV;
+ goto nodev;
+ }
+ /* verify if the physical device is a netxtreme2 device */
+ if (phys_dev->ethtool_ops && phys_dev->ethtool_ops->get_drvinfo) {
+ memset(&drvinfo, 0, sizeof(drvinfo));
+ phys_dev->ethtool_ops->get_drvinfo(phys_dev, &drvinfo);
+ if (strcmp(drvinfo.driver, "bnx2x")) {
+ printk(KERN_ERR PFX "Not a netxtreme2 device\n");
+ rc = -ENODEV;
+ goto nodev;
+ }
+ } else {
+ printk(KERN_ERR PFX "unable to obtain drv_info\n");
+ rc = -ENODEV;
+ goto nodev;
+ }
+
+ /* obtain hba and initialize rest of the structure */
+ hba = bnx2fc_hba_lookup(phys_dev);
+ if (!hba || !hba->ctlr.lp) {
+ rc = -ENODEV;
+ printk(KERN_ERR PFX "bnx2fc_enable: hba or lport not found\n");
+ } else if (!bnx2fc_link_ok(hba->ctlr.lp))
+ fcoe_ctlr_link_up(&hba->ctlr);
+
+nodev:
+ mutex_unlock(&bnx2fc_dev_lock);
+ rtnl_unlock();
+ return rc;
+}
+
+/**
+ * bnx2fc_create - Create bnx2fc FCoE interface
+ *
+ * @buffer: The name of Ethernet interface to create on
+ * @kp: The associated kernel param
+ *
+ * Called from sysfs.
+ *
+ * Returns: 0 for success
+ */
+static int bnx2fc_create(struct net_device *netdev, enum fip_state fip_mode)
+{
+ struct bnx2fc_hba *hba;
+ struct net_device *phys_dev;
+ struct fc_lport *lport;
+ struct ethtool_drvinfo drvinfo;
+ int rc = 0;
+ int vlan_id;
+
+ BNX2FC_MISC_DBG("Entered bnx2fc_create\n");
+ if (fip_mode != FIP_MODE_FABRIC) {
+ printk(KERN_ERR "fip mode not FABRIC\n");
+ return -EIO;
+ }
+
+ if (!rtnl_trylock()) {
+ printk(KERN_ERR "trying for rtnl_lock\n");
+ return -EIO;
+ }
+ mutex_lock(&bnx2fc_dev_lock);
+
+#ifdef CONFIG_SCSI_BNX2X_FCOE_MODULE
+ if (THIS_MODULE->state != MODULE_STATE_LIVE) {
+ rc = -ENODEV;
+ goto mod_err;
+ }
+#endif
+
+ if (!try_module_get(THIS_MODULE)) {
+ rc = -EINVAL;
+ goto mod_err;
+ }
+
+ /* obtain physical netdev */
+ if (netdev->priv_flags & IFF_802_1Q_VLAN) {
+ phys_dev = vlan_dev_real_dev(netdev);
+ vlan_id = vlan_dev_vlan_id(netdev);
+ } else {
+ printk(KERN_ERR PFX "Not a vlan device\n");
+ rc = -EINVAL;
+ goto netdev_err;
+ }
+ /* verify if the physical device is a netxtreme2 device */
+ if (phys_dev->ethtool_ops && phys_dev->ethtool_ops->get_drvinfo) {
+ memset(&drvinfo, 0, sizeof(drvinfo));
+ phys_dev->ethtool_ops->get_drvinfo(phys_dev, &drvinfo);
+ if (strcmp(drvinfo.driver, "bnx2x")) {
+ printk(KERN_ERR PFX "Not a netxtreme2 device\n");
+ rc = -EINVAL;
+ goto netdev_err;
+ }
+ } else {
+ printk(KERN_ERR PFX "unable to obtain drv_info\n");
+ rc = -EINVAL;
+ goto netdev_err;
+ }
+
+ /* obtain hba and initialize rest of the structure */
+ hba = bnx2fc_hba_lookup(phys_dev);
+ if (!hba) {
+ rc = -ENODEV;
+ printk(KERN_ERR PFX "bnx2fc_create: hba not found\n");
+ goto netdev_err;
+ }
+
+ if (!test_bit(BNX2FC_FW_INIT_DONE, &hba->init_done)) {
+ rc = bnx2fc_fw_init(hba);
+ if (rc)
+ goto netdev_err;
+ }
+
+ if (test_bit(BNX2FC_CREATE_DONE, &hba->init_done)) {
+ rc = -EEXIST;
+ goto netdev_err;
+ }
+
+ /* update netdev with vlan netdev */
+ hba->netdev = netdev;
+ hba->vlan_id = vlan_id;
+ hba->vlan_enabled = 1;
+
+ rc = bnx2fc_interface_setup(hba, fip_mode);
+ if (rc) {
+ printk(KERN_ERR PFX "bnx2fc_interface_setup failed\n");
+ goto ifput_err;
+ }
+
+ hba->timer_work_queue =
+ create_singlethread_workqueue("bnx2fc_timer_wq");
+ if (!hba->timer_work_queue) {
+ printk(KERN_ERR PFX "ulp_init could not create timer_wq\n");
+ rc = -EINVAL;
+ goto ifput_err;
+ }
+
+ lport = bnx2fc_if_create(hba, &hba->pcidev->dev, 0);
+ if (!lport) {
+ printk(KERN_ERR PFX "Failed to create interface (%s)\n",
+ netdev->name);
+ bnx2fc_netdev_cleanup(hba);
+ rc = -EINVAL;
+ goto if_create_err;
+ }
+
+ lport->boot_time = jiffies;
+
+ /* Make this master N_port */
+ hba->ctlr.lp = lport;
+
+ set_bit(BNX2FC_CREATE_DONE, &hba->init_done);
+ printk(KERN_ERR PFX "create: START DISC\n");
+ bnx2fc_start_disc(hba);
+ /*
+ * Release from kref_init in bnx2fc_interface_setup, on success
+ * lport should be holding a reference taken in bnx2fc_if_create
+ */
+ bnx2fc_interface_put(hba);
+ /* put netdev that was held while calling dev_get_by_name */
+ mutex_unlock(&bnx2fc_dev_lock);
+ rtnl_unlock();
+ return 0;
+
+if_create_err:
+ destroy_workqueue(hba->timer_work_queue);
+ifput_err:
+ bnx2fc_interface_put(hba);
+netdev_err:
+ module_put(THIS_MODULE);
+mod_err:
+ mutex_unlock(&bnx2fc_dev_lock);
+ rtnl_unlock();
+ return rc;
+}
+
+/**
+ * bnx2fc_find_hba_for_cnic - maps cnic instance to bnx2fc adapter instance
+ *
+ * @cnic: Pointer to cnic device instance
+ *
+ **/
+static struct bnx2fc_hba *bnx2fc_find_hba_for_cnic(struct cnic_dev *cnic)
+{
+ struct list_head *list;
+ struct list_head *temp;
+ struct bnx2fc_hba *hba;
+
+ /* Called with bnx2fc_dev_lock held */
+ list_for_each_safe(list, temp, &adapter_list) {
+ hba = (struct bnx2fc_hba *)list;
+ if (hba->cnic == cnic)
+ return hba;
+ }
+ return NULL;
+}
+
+static struct bnx2fc_hba *bnx2fc_hba_lookup(struct net_device *phys_dev)
+{
+ struct list_head *list;
+ struct list_head *temp;
+ struct bnx2fc_hba *hba;
+
+ /* Called with bnx2fc_dev_lock held */
+ list_for_each_safe(list, temp, &adapter_list) {
+ hba = (struct bnx2fc_hba *)list;
+ if (hba->phys_dev == phys_dev)
+ return hba;
+ }
+ printk(KERN_ERR PFX "hba_lookup: hba NULL\n");
+ return NULL;
+}
+
+/**
+ * bnx2fc_ulp_exit - shuts down adapter instance and frees all resources
+ *
+ * @dev cnic device handle
+ */
+static void bnx2fc_ulp_exit(struct cnic_dev *dev)
+{
+ struct bnx2fc_hba *hba;
+
+ BNX2FC_MISC_DBG("Entered bnx2fc_ulp_exit\n");
+
+ if (!test_bit(CNIC_F_BNX2X_CLASS, &dev->flags)) {
+ printk(KERN_ERR PFX "bnx2fc port check: %s, flags: %lx\n",
+ dev->netdev->name, dev->flags);
+ return;
+ }
+
+ mutex_lock(&bnx2fc_dev_lock);
+ hba = bnx2fc_find_hba_for_cnic(dev);
+ if (!hba) {
+ printk(KERN_ERR PFX "bnx2fc_ulp_exit: hba not found, dev 0%p\n",
+ dev);
+ mutex_unlock(&bnx2fc_dev_lock);
+ return;
+ }
+
+ list_del_init(&hba->link);
+ adapter_count--;
+
+ if (test_bit(BNX2FC_CREATE_DONE, &hba->init_done)) {
+ /* destroy not called yet, move to quiesced list */
+ bnx2fc_netdev_cleanup(hba);
+ bnx2fc_if_destroy(hba->ctlr.lp);
+ }
+ mutex_unlock(&bnx2fc_dev_lock);
+
+ bnx2fc_ulp_stop(hba);
+ /* unregister cnic device */
+ if (test_and_clear_bit(BNX2FC_CNIC_REGISTERED, &hba->reg_with_cnic))
+ hba->cnic->unregister_device(hba->cnic, CNIC_ULP_FCOE);
+ bnx2fc_interface_destroy(hba);
+}
+
+/**
+ * bnx2fc_fcoe_reset - Resets the fcoe
+ *
+ * @shost: shost the reset is from
+ *
+ * Returns: always 0
+ */
+static int bnx2fc_fcoe_reset(struct Scsi_Host *shost)
+{
+ struct fc_lport *lport = shost_priv(shost);
+ fc_lport_reset(lport);
+ return 0;
+}
+
+
+static bool bnx2fc_match(struct net_device *netdev)
+{
+ mutex_lock(&bnx2fc_dev_lock);
+ if (netdev->priv_flags & IFF_802_1Q_VLAN) {
+ struct net_device *phys_dev = vlan_dev_real_dev(netdev);
+
+ if (bnx2fc_hba_lookup(phys_dev)) {
+ mutex_unlock(&bnx2fc_dev_lock);
+ return true;
+ }
+ }
+ mutex_unlock(&bnx2fc_dev_lock);
+ return false;
+}
+
+
+static struct fcoe_transport bnx2fc_transport = {
+ .name = {"bnx2fc"},
+ .attached = false,
+ .list = LIST_HEAD_INIT(bnx2fc_transport.list),
+ .match = bnx2fc_match,
+ .create = bnx2fc_create,
+ .destroy = bnx2fc_destroy,
+ .enable = bnx2fc_enable,
+ .disable = bnx2fc_disable,
+};
+
+/**
+ * bnx2fc_percpu_thread_create - Create a receive thread for an
+ * online CPU
+ *
+ * @cpu: cpu index for the online cpu
+ */
+static void bnx2fc_percpu_thread_create(unsigned int cpu)
+{
+ struct bnx2fc_percpu_s *p;
+ struct task_struct *thread;
+
+ p = &per_cpu(bnx2fc_percpu, cpu);
+
+ thread = kthread_create(bnx2fc_percpu_io_thread,
+ (void *)p,
+ "bnx2fc_thread/%d", cpu);
+ /* bind thread to the cpu */
+ if (likely(!IS_ERR(p->iothread))) {
+ kthread_bind(thread, cpu);
+ p->iothread = thread;
+ wake_up_process(thread);
+ }
+}
+
+static void bnx2fc_percpu_thread_destroy(unsigned int cpu)
+{
+ struct bnx2fc_percpu_s *p;
+ struct task_struct *thread;
+ struct bnx2fc_work *work, *tmp;
+ LIST_HEAD(work_list);
+
+ BNX2FC_MISC_DBG("destroying io thread for CPU %d\n", cpu);
+
+ /* Prevent any new work from being queued for this CPU */
+ p = &per_cpu(bnx2fc_percpu, cpu);
+ spin_lock_bh(&p->fp_work_lock);
+ thread = p->iothread;
+ p->iothread = NULL;
+
+
+ /* Free all work in the list */
+ list_for_each_entry_safe(work, tmp, &work_list, list) {
+ list_del_init(&work->list);
+ bnx2fc_process_cq_compl(work->tgt, work->wqe);
+ kfree(work);
+ }
+
+ spin_unlock_bh(&p->fp_work_lock);
+
+ if (thread)
+ kthread_stop(thread);
+}
+
+/**
+ * bnx2fc_cpu_callback - Handler for CPU hotplug events
+ *
+ * @nfb: The callback data block
+ * @action: The event triggering the callback
+ * @hcpu: The index of the CPU that the event is for
+ *
+ * This creates or destroys per-CPU data for fcoe
+ *
+ * Returns NOTIFY_OK always.
+ */
+static int bnx2fc_cpu_callback(struct notifier_block *nfb,
+ unsigned long action, void *hcpu)
+{
+ unsigned cpu = (unsigned long)hcpu;
+
+ switch (action) {
+ case CPU_ONLINE:
+ case CPU_ONLINE_FROZEN:
+ printk(PFX "CPU %x online: Create Rx thread\n", cpu);
+ bnx2fc_percpu_thread_create(cpu);
+ break;
+ case CPU_DEAD:
+ case CPU_DEAD_FROZEN:
+ printk(PFX "CPU %x offline: Remove Rx thread\n", cpu);
+ bnx2fc_percpu_thread_destroy(cpu);
+ break;
+ default:
+ break;
+ }
+ return NOTIFY_OK;
+}
+
+/**
+ * bnx2fc_mod_init - module init entry point
+ *
+ * Initialize driver wide global data structures, and register
+ * with cnic module
+ **/
+static int __init bnx2fc_mod_init(void)
+{
+ struct fcoe_percpu_s *bg;
+ struct task_struct *l2_thread;
+ int rc = 0;
+ unsigned int cpu = 0;
+ struct bnx2fc_percpu_s *p;
+
+ printk(KERN_INFO PFX "%s", version);
+
+ /* register as a fcoe transport */
+ rc = fcoe_transport_attach(&bnx2fc_transport);
+ if (rc) {
+ printk(KERN_ERR "failed to register an fcoe transport, check "
+ "if libfcoe is loaded\n");
+ goto out;
+ }
+
+ INIT_LIST_HEAD(&adapter_list);
+ mutex_init(&bnx2fc_dev_lock);
+ adapter_count = 0;
+
+ /* Attach FC transport template */
+ rc = bnx2fc_attach_transport();
+ if (rc)
+ goto detach_ft;
+
+ bnx2fc_wq = alloc_workqueue("bnx2fc", 0, 0);
+ if (!bnx2fc_wq) {
+ rc = -ENOMEM;
+ goto release_bt;
+ }
+
+ bg = &bnx2fc_global;
+ skb_queue_head_init(&bg->fcoe_rx_list);
+ l2_thread = kthread_create(bnx2fc_l2_rcv_thread,
+ (void *)bg,
+ "bnx2fc_l2_thread");
+ if (IS_ERR(l2_thread)) {
+ rc = PTR_ERR(l2_thread);
+ goto free_wq;
+ }
+ wake_up_process(l2_thread);
+ spin_lock_bh(&bg->fcoe_rx_list.lock);
+ bg->thread = l2_thread;
+ spin_unlock_bh(&bg->fcoe_rx_list.lock);
+
+ for_each_possible_cpu(cpu) {
+ p = &per_cpu(bnx2fc_percpu, cpu);
+ INIT_LIST_HEAD(&p->work_list);
+ spin_lock_init(&p->fp_work_lock);
+ }
+
+ for_each_online_cpu(cpu) {
+ bnx2fc_percpu_thread_create(cpu);
+ }
+
+ /* Initialize per CPU interrupt thread */
+ register_hotcpu_notifier(&bnx2fc_cpu_notifier);
+
+ cnic_register_driver(CNIC_ULP_FCOE, &bnx2fc_cnic_cb);
+
+ return 0;
+
+free_wq:
+ destroy_workqueue(bnx2fc_wq);
+release_bt:
+ bnx2fc_release_transport();
+detach_ft:
+ fcoe_transport_detach(&bnx2fc_transport);
+out:
+ return rc;
+}
+
+static void __exit bnx2fc_mod_exit(void)
+{
+ LIST_HEAD(to_be_deleted);
+ struct bnx2fc_hba *hba, *next;
+ struct fcoe_percpu_s *bg;
+ struct task_struct *l2_thread;
+ struct sk_buff *skb;
+ unsigned int cpu = 0;
+
+ /*
+ * NOTE: Since cnic calls register_driver routine rtnl_lock,
+ * it will have higher precedence than bnx2fc_dev_lock.
+ * unregister_device() cannot be called with bnx2fc_dev_lock
+ * held.
+ */
+ mutex_lock(&bnx2fc_dev_lock);
+ list_splice(&adapter_list, &to_be_deleted);
+ INIT_LIST_HEAD(&adapter_list);
+ adapter_count = 0;
+ mutex_unlock(&bnx2fc_dev_lock);
+
+ /* Unregister with cnic */
+ list_for_each_entry_safe(hba, next, &to_be_deleted, link) {
+ list_del_init(&hba->link);
+ printk(KERN_ERR PFX "MOD_EXIT:destroy hba = 0x%p, kref = %d\n",
+ hba, atomic_read(&hba->kref.refcount));
+ bnx2fc_ulp_stop(hba);
+ /* unregister cnic device */
+ if (test_and_clear_bit(BNX2FC_CNIC_REGISTERED,
+ &hba->reg_with_cnic))
+ hba->cnic->unregister_device(hba->cnic, CNIC_ULP_FCOE);
+ bnx2fc_interface_destroy(hba);
+ }
+ cnic_unregister_driver(CNIC_ULP_FCOE);
+
+ /* Destroy global thread */
+ bg = &bnx2fc_global;
+ spin_lock_bh(&bg->fcoe_rx_list.lock);
+ l2_thread = bg->thread;
+ bg->thread = NULL;
+ while ((skb = __skb_dequeue(&bg->fcoe_rx_list)) != NULL)
+ kfree_skb(skb);
+
+ spin_unlock_bh(&bg->fcoe_rx_list.lock);
+
+ if (l2_thread)
+ kthread_stop(l2_thread);
+
+ unregister_hotcpu_notifier(&bnx2fc_cpu_notifier);
+
+ /* Destroy per cpu threads */
+ for_each_online_cpu(cpu) {
+ bnx2fc_percpu_thread_destroy(cpu);
+ }
+
+ destroy_workqueue(bnx2fc_wq);
+ /*
+ * detach from scsi transport
+ * must happen after all destroys are done
+ */
+ bnx2fc_release_transport();
+
+ /* detach from fcoe transport */
+ fcoe_transport_detach(&bnx2fc_transport);
+}
+
+module_init(bnx2fc_mod_init);
+module_exit(bnx2fc_mod_exit);
+
+static struct fc_function_template bnx2fc_transport_function = {
+ .show_host_node_name = 1,
+ .show_host_port_name = 1,
+ .show_host_supported_classes = 1,
+ .show_host_supported_fc4s = 1,
+ .show_host_active_fc4s = 1,
+ .show_host_maxframe_size = 1,
+
+ .show_host_port_id = 1,
+ .show_host_supported_speeds = 1,
+ .get_host_speed = fc_get_host_speed,
+ .show_host_speed = 1,
+ .show_host_port_type = 1,
+ .get_host_port_state = fc_get_host_port_state,
+ .show_host_port_state = 1,
+ .show_host_symbolic_name = 1,
+
+ .dd_fcrport_size = (sizeof(struct fc_rport_libfc_priv) +
+ sizeof(struct bnx2fc_rport)),
+ .show_rport_maxframe_size = 1,
+ .show_rport_supported_classes = 1,
+
+ .show_host_fabric_name = 1,
+ .show_starget_node_name = 1,
+ .show_starget_port_name = 1,
+ .show_starget_port_id = 1,
+ .set_rport_dev_loss_tmo = fc_set_rport_loss_tmo,
+ .show_rport_dev_loss_tmo = 1,
+ .get_fc_host_stats = bnx2fc_get_host_stats,
+
+ .issue_fc_host_lip = bnx2fc_fcoe_reset,
+
+ .terminate_rport_io = fc_rport_terminate_io,
+
+ .vport_create = bnx2fc_vport_create,
+ .vport_delete = bnx2fc_vport_destroy,
+ .vport_disable = bnx2fc_vport_disable,
+};
+
+static struct fc_function_template bnx2fc_vport_xport_function = {
+ .show_host_node_name = 1,
+ .show_host_port_name = 1,
+ .show_host_supported_classes = 1,
+ .show_host_supported_fc4s = 1,
+ .show_host_active_fc4s = 1,
+ .show_host_maxframe_size = 1,
+
+ .show_host_port_id = 1,
+ .show_host_supported_speeds = 1,
+ .get_host_speed = fc_get_host_speed,
+ .show_host_speed = 1,
+ .show_host_port_type = 1,
+ .get_host_port_state = fc_get_host_port_state,
+ .show_host_port_state = 1,
+ .show_host_symbolic_name = 1,
+
+ .dd_fcrport_size = (sizeof(struct fc_rport_libfc_priv) +
+ sizeof(struct bnx2fc_rport)),
+ .show_rport_maxframe_size = 1,
+ .show_rport_supported_classes = 1,
+
+ .show_host_fabric_name = 1,
+ .show_starget_node_name = 1,
+ .show_starget_port_name = 1,
+ .show_starget_port_id = 1,
+ .set_rport_dev_loss_tmo = fc_set_rport_loss_tmo,
+ .show_rport_dev_loss_tmo = 1,
+ .get_fc_host_stats = fc_get_host_stats,
+ .issue_fc_host_lip = bnx2fc_fcoe_reset,
+ .terminate_rport_io = fc_rport_terminate_io,
+};
+
+/**
+ * scsi_host_template structure used while registering with SCSI-ml
+ */
+static struct scsi_host_template bnx2fc_shost_template = {
+ .module = THIS_MODULE,
+ .name = "Broadcom Offload FCoE Initiator",
+ .queuecommand = bnx2fc_queuecommand,
+ .eh_abort_handler = bnx2fc_eh_abort, /* abts */
+ .eh_device_reset_handler = bnx2fc_eh_device_reset, /* lun reset */
+ .eh_target_reset_handler = bnx2fc_eh_target_reset, /* tgt reset */
+ .eh_host_reset_handler = fc_eh_host_reset,
+ .slave_alloc = fc_slave_alloc,
+ .change_queue_depth = fc_change_queue_depth,
+ .change_queue_type = fc_change_queue_type,
+ .this_id = -1,
+ .cmd_per_lun = 3,
+ .can_queue = (BNX2FC_MAX_OUTSTANDING_CMNDS/2),
+ .use_clustering = ENABLE_CLUSTERING,
+ .sg_tablesize = BNX2FC_MAX_BDS_PER_CMD,
+ .max_sectors = 512,
+};
+
+static struct libfc_function_template bnx2fc_libfc_fcn_templ = {
+ .frame_send = bnx2fc_xmit,
+ .elsct_send = bnx2fc_elsct_send,
+ .fcp_abort_io = bnx2fc_abort_io,
+ .fcp_cleanup = bnx2fc_cleanup,
+ .rport_event_callback = bnx2fc_rport_event_handler,
+};
+
+/**
+ * bnx2fc_cnic_cb - global template of bnx2fc - cnic driver interface
+ * structure carrying callback function pointers
+ */
+static struct cnic_ulp_ops bnx2fc_cnic_cb = {
+ .owner = THIS_MODULE,
+ .cnic_init = bnx2fc_ulp_init,
+ .cnic_exit = bnx2fc_ulp_exit,
+ .cnic_start = bnx2fc_ulp_start,
+ .cnic_stop = bnx2fc_ulp_stop,
+ .indicate_kcqes = bnx2fc_indicate_kcqe,
+ .indicate_netevent = bnx2fc_indicate_netevent,
+};
--- /dev/null
+/* bnx2fc_hwi.c: Broadcom NetXtreme II Linux FCoE offload driver.
+ * This file contains the code that low level functions that interact
+ * with 57712 FCoE firmware.
+ *
+ * Copyright (c) 2008 - 2010 Broadcom Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation.
+ *
+ * Written by: Bhanu Prakash Gollapudi (bprakash@broadcom.com)
+ */
+
+#include "bnx2fc.h"
+
+DECLARE_PER_CPU(struct bnx2fc_percpu_s, bnx2fc_percpu);
+
+static void bnx2fc_fastpath_notification(struct bnx2fc_hba *hba,
+ struct fcoe_kcqe *new_cqe_kcqe);
+static void bnx2fc_process_ofld_cmpl(struct bnx2fc_hba *hba,
+ struct fcoe_kcqe *ofld_kcqe);
+static void bnx2fc_process_enable_conn_cmpl(struct bnx2fc_hba *hba,
+ struct fcoe_kcqe *ofld_kcqe);
+static void bnx2fc_init_failure(struct bnx2fc_hba *hba, u32 err_code);
+static void bnx2fc_process_conn_destroy_cmpl(struct bnx2fc_hba *hba,
+ struct fcoe_kcqe *conn_destroy);
+
+int bnx2fc_send_stat_req(struct bnx2fc_hba *hba)
+{
+ struct fcoe_kwqe_stat stat_req;
+ struct kwqe *kwqe_arr[2];
+ int num_kwqes = 1;
+ int rc = 0;
+
+ memset(&stat_req, 0x00, sizeof(struct fcoe_kwqe_stat));
+ stat_req.hdr.op_code = FCOE_KWQE_OPCODE_STAT;
+ stat_req.hdr.flags =
+ (FCOE_KWQE_LAYER_CODE << FCOE_KWQE_HEADER_LAYER_CODE_SHIFT);
+
+ stat_req.stat_params_addr_lo = (u32) hba->stats_buf_dma;
+ stat_req.stat_params_addr_hi = (u32) ((u64)hba->stats_buf_dma >> 32);
+
+ kwqe_arr[0] = (struct kwqe *) &stat_req;
+
+ if (hba->cnic && hba->cnic->submit_kwqes)
+ rc = hba->cnic->submit_kwqes(hba->cnic, kwqe_arr, num_kwqes);
+
+ return rc;
+}
+
+/**
+ * bnx2fc_send_fw_fcoe_init_msg - initiates initial handshake with FCoE f/w
+ *
+ * @hba: adapter structure pointer
+ *
+ * Send down FCoE firmware init KWQEs which initiates the initial handshake
+ * with the f/w.
+ *
+ */
+int bnx2fc_send_fw_fcoe_init_msg(struct bnx2fc_hba *hba)
+{
+ struct fcoe_kwqe_init1 fcoe_init1;
+ struct fcoe_kwqe_init2 fcoe_init2;
+ struct fcoe_kwqe_init3 fcoe_init3;
+ struct kwqe *kwqe_arr[3];
+ int num_kwqes = 3;
+ int rc = 0;
+
+ if (!hba->cnic) {
+ printk(KERN_ALERT PFX "hba->cnic NULL during fcoe fw init\n");
+ return -ENODEV;
+ }
+
+ /* fill init1 KWQE */
+ memset(&fcoe_init1, 0x00, sizeof(struct fcoe_kwqe_init1));
+ fcoe_init1.hdr.op_code = FCOE_KWQE_OPCODE_INIT1;
+ fcoe_init1.hdr.flags = (FCOE_KWQE_LAYER_CODE <<
+ FCOE_KWQE_HEADER_LAYER_CODE_SHIFT);
+
+ fcoe_init1.num_tasks = BNX2FC_MAX_TASKS;
+ fcoe_init1.sq_num_wqes = BNX2FC_SQ_WQES_MAX;
+ fcoe_init1.rq_num_wqes = BNX2FC_RQ_WQES_MAX;
+ fcoe_init1.rq_buffer_log_size = BNX2FC_RQ_BUF_LOG_SZ;
+ fcoe_init1.cq_num_wqes = BNX2FC_CQ_WQES_MAX;
+ fcoe_init1.dummy_buffer_addr_lo = (u32) hba->dummy_buf_dma;
+ fcoe_init1.dummy_buffer_addr_hi = (u32) ((u64)hba->dummy_buf_dma >> 32);
+ fcoe_init1.task_list_pbl_addr_lo = (u32) hba->task_ctx_bd_dma;
+ fcoe_init1.task_list_pbl_addr_hi =
+ (u32) ((u64) hba->task_ctx_bd_dma >> 32);
+ fcoe_init1.mtu = hba->netdev->mtu;
+
+ fcoe_init1.flags = (PAGE_SHIFT <<
+ FCOE_KWQE_INIT1_LOG_PAGE_SIZE_SHIFT);
+
+ fcoe_init1.num_sessions_log = BNX2FC_NUM_MAX_SESS_LOG;
+
+ /* fill init2 KWQE */
+ memset(&fcoe_init2, 0x00, sizeof(struct fcoe_kwqe_init2));
+ fcoe_init2.hdr.op_code = FCOE_KWQE_OPCODE_INIT2;
+ fcoe_init2.hdr.flags = (FCOE_KWQE_LAYER_CODE <<
+ FCOE_KWQE_HEADER_LAYER_CODE_SHIFT);
+
+ fcoe_init2.hash_tbl_pbl_addr_lo = (u32) hba->hash_tbl_pbl_dma;
+ fcoe_init2.hash_tbl_pbl_addr_hi = (u32)
+ ((u64) hba->hash_tbl_pbl_dma >> 32);
+
+ fcoe_init2.t2_hash_tbl_addr_lo = (u32) hba->t2_hash_tbl_dma;
+ fcoe_init2.t2_hash_tbl_addr_hi = (u32)
+ ((u64) hba->t2_hash_tbl_dma >> 32);
+
+ fcoe_init2.t2_ptr_hash_tbl_addr_lo = (u32) hba->t2_hash_tbl_ptr_dma;
+ fcoe_init2.t2_ptr_hash_tbl_addr_hi = (u32)
+ ((u64) hba->t2_hash_tbl_ptr_dma >> 32);
+
+ fcoe_init2.free_list_count = BNX2FC_NUM_MAX_SESS;
+
+ /* fill init3 KWQE */
+ memset(&fcoe_init3, 0x00, sizeof(struct fcoe_kwqe_init3));
+ fcoe_init3.hdr.op_code = FCOE_KWQE_OPCODE_INIT3;
+ fcoe_init3.hdr.flags = (FCOE_KWQE_LAYER_CODE <<
+ FCOE_KWQE_HEADER_LAYER_CODE_SHIFT);
+ fcoe_init3.error_bit_map_lo = 0xffffffff;
+ fcoe_init3.error_bit_map_hi = 0xffffffff;
+
+
+ kwqe_arr[0] = (struct kwqe *) &fcoe_init1;
+ kwqe_arr[1] = (struct kwqe *) &fcoe_init2;
+ kwqe_arr[2] = (struct kwqe *) &fcoe_init3;
+
+ if (hba->cnic && hba->cnic->submit_kwqes)
+ rc = hba->cnic->submit_kwqes(hba->cnic, kwqe_arr, num_kwqes);
+
+ return rc;
+}
+int bnx2fc_send_fw_fcoe_destroy_msg(struct bnx2fc_hba *hba)
+{
+ struct fcoe_kwqe_destroy fcoe_destroy;
+ struct kwqe *kwqe_arr[2];
+ int num_kwqes = 1;
+ int rc = -1;
+
+ /* fill destroy KWQE */
+ memset(&fcoe_destroy, 0x00, sizeof(struct fcoe_kwqe_destroy));
+ fcoe_destroy.hdr.op_code = FCOE_KWQE_OPCODE_DESTROY;
+ fcoe_destroy.hdr.flags = (FCOE_KWQE_LAYER_CODE <<
+ FCOE_KWQE_HEADER_LAYER_CODE_SHIFT);
+ kwqe_arr[0] = (struct kwqe *) &fcoe_destroy;
+
+ if (hba->cnic && hba->cnic->submit_kwqes)
+ rc = hba->cnic->submit_kwqes(hba->cnic, kwqe_arr, num_kwqes);
+ return rc;
+}
+
+/**
+ * bnx2fc_send_session_ofld_req - initiates FCoE Session offload process
+ *
+ * @port: port structure pointer
+ * @tgt: bnx2fc_rport structure pointer
+ */
+int bnx2fc_send_session_ofld_req(struct fcoe_port *port,
+ struct bnx2fc_rport *tgt)
+{
+ struct fc_lport *lport = port->lport;
+ struct bnx2fc_hba *hba = port->priv;
+ struct kwqe *kwqe_arr[4];
+ struct fcoe_kwqe_conn_offload1 ofld_req1;
+ struct fcoe_kwqe_conn_offload2 ofld_req2;
+ struct fcoe_kwqe_conn_offload3 ofld_req3;
+ struct fcoe_kwqe_conn_offload4 ofld_req4;
+ struct fc_rport_priv *rdata = tgt->rdata;
+ struct fc_rport *rport = tgt->rport;
+ int num_kwqes = 4;
+ u32 port_id;
+ int rc = 0;
+ u16 conn_id;
+
+ /* Initialize offload request 1 structure */
+ memset(&ofld_req1, 0x00, sizeof(struct fcoe_kwqe_conn_offload1));
+
+ ofld_req1.hdr.op_code = FCOE_KWQE_OPCODE_OFFLOAD_CONN1;
+ ofld_req1.hdr.flags =
+ (FCOE_KWQE_LAYER_CODE << FCOE_KWQE_HEADER_LAYER_CODE_SHIFT);
+
+
+ conn_id = (u16)tgt->fcoe_conn_id;
+ ofld_req1.fcoe_conn_id = conn_id;
+
+
+ ofld_req1.sq_addr_lo = (u32) tgt->sq_dma;
+ ofld_req1.sq_addr_hi = (u32)((u64) tgt->sq_dma >> 32);
+
+ ofld_req1.rq_pbl_addr_lo = (u32) tgt->rq_pbl_dma;
+ ofld_req1.rq_pbl_addr_hi = (u32)((u64) tgt->rq_pbl_dma >> 32);
+
+ ofld_req1.rq_first_pbe_addr_lo = (u32) tgt->rq_dma;
+ ofld_req1.rq_first_pbe_addr_hi =
+ (u32)((u64) tgt->rq_dma >> 32);
+
+ ofld_req1.rq_prod = 0x8000;
+
+ /* Initialize offload request 2 structure */
+ memset(&ofld_req2, 0x00, sizeof(struct fcoe_kwqe_conn_offload2));
+
+ ofld_req2.hdr.op_code = FCOE_KWQE_OPCODE_OFFLOAD_CONN2;
+ ofld_req2.hdr.flags =
+ (FCOE_KWQE_LAYER_CODE << FCOE_KWQE_HEADER_LAYER_CODE_SHIFT);
+
+ ofld_req2.tx_max_fc_pay_len = rdata->maxframe_size;
+
+ ofld_req2.cq_addr_lo = (u32) tgt->cq_dma;
+ ofld_req2.cq_addr_hi = (u32)((u64)tgt->cq_dma >> 32);
+
+ ofld_req2.xferq_addr_lo = (u32) tgt->xferq_dma;
+ ofld_req2.xferq_addr_hi = (u32)((u64)tgt->xferq_dma >> 32);
+
+ ofld_req2.conn_db_addr_lo = (u32)tgt->conn_db_dma;
+ ofld_req2.conn_db_addr_hi = (u32)((u64)tgt->conn_db_dma >> 32);
+
+ /* Initialize offload request 3 structure */
+ memset(&ofld_req3, 0x00, sizeof(struct fcoe_kwqe_conn_offload3));
+
+ ofld_req3.hdr.op_code = FCOE_KWQE_OPCODE_OFFLOAD_CONN3;
+ ofld_req3.hdr.flags =
+ (FCOE_KWQE_LAYER_CODE << FCOE_KWQE_HEADER_LAYER_CODE_SHIFT);
+
+ ofld_req3.vlan_tag = hba->vlan_id <<
+ FCOE_KWQE_CONN_OFFLOAD3_VLAN_ID_SHIFT;
+ ofld_req3.vlan_tag |= 3 << FCOE_KWQE_CONN_OFFLOAD3_PRIORITY_SHIFT;
+
+ port_id = fc_host_port_id(lport->host);
+ if (port_id == 0) {
+ BNX2FC_HBA_DBG(lport, "ofld_req: port_id = 0, link down?\n");
+ return -EINVAL;
+ }
+
+ /*
+ * Store s_id of the initiator for further reference. This will
+ * be used during disable/destroy during linkdown processing as
+ * when the lport is reset, the port_id also is reset to 0
+ */
+ tgt->sid = port_id;
+ ofld_req3.s_id[0] = (port_id & 0x000000FF);
+ ofld_req3.s_id[1] = (port_id & 0x0000FF00) >> 8;
+ ofld_req3.s_id[2] = (port_id & 0x00FF0000) >> 16;
+
+ port_id = rport->port_id;
+ ofld_req3.d_id[0] = (port_id & 0x000000FF);
+ ofld_req3.d_id[1] = (port_id & 0x0000FF00) >> 8;
+ ofld_req3.d_id[2] = (port_id & 0x00FF0000) >> 16;
+
+ ofld_req3.tx_total_conc_seqs = rdata->max_seq;
+
+ ofld_req3.tx_max_conc_seqs_c3 = rdata->max_seq;
+ ofld_req3.rx_max_fc_pay_len = lport->mfs;
+
+ ofld_req3.rx_total_conc_seqs = BNX2FC_MAX_SEQS;
+ ofld_req3.rx_max_conc_seqs_c3 = BNX2FC_MAX_SEQS;
+ ofld_req3.rx_open_seqs_exch_c3 = 1;
+
+ ofld_req3.confq_first_pbe_addr_lo = tgt->confq_dma;
+ ofld_req3.confq_first_pbe_addr_hi = (u32)((u64) tgt->confq_dma >> 32);
+
+ /* set mul_n_port_ids supported flag to 0, until it is supported */
+ ofld_req3.flags = 0;
+ /*
+ ofld_req3.flags |= (((lport->send_sp_features & FC_SP_FT_MNA) ? 1:0) <<
+ FCOE_KWQE_CONN_OFFLOAD3_B_MUL_N_PORT_IDS_SHIFT);
+ */
+ /* Info from PLOGI response */
+ ofld_req3.flags |= (((rdata->sp_features & FC_SP_FT_EDTR) ? 1 : 0) <<
+ FCOE_KWQE_CONN_OFFLOAD3_B_E_D_TOV_RES_SHIFT);
+
+ ofld_req3.flags |= (((rdata->sp_features & FC_SP_FT_SEQC) ? 1 : 0) <<
+ FCOE_KWQE_CONN_OFFLOAD3_B_CONT_INCR_SEQ_CNT_SHIFT);
+
+ /* vlan flag */
+ ofld_req3.flags |= (hba->vlan_enabled <<
+ FCOE_KWQE_CONN_OFFLOAD3_B_VLAN_FLAG_SHIFT);
+
+ /* C2_VALID and ACK flags are not set as they are not suppported */
+
+
+ /* Initialize offload request 4 structure */
+ memset(&ofld_req4, 0x00, sizeof(struct fcoe_kwqe_conn_offload4));
+ ofld_req4.hdr.op_code = FCOE_KWQE_OPCODE_OFFLOAD_CONN4;
+ ofld_req4.hdr.flags =
+ (FCOE_KWQE_LAYER_CODE << FCOE_KWQE_HEADER_LAYER_CODE_SHIFT);
+
+ ofld_req4.e_d_tov_timer_val = lport->e_d_tov / 20;
+
+
+ ofld_req4.src_mac_addr_lo32[0] = port->data_src_addr[5];
+ /* local mac */
+ ofld_req4.src_mac_addr_lo32[1] = port->data_src_addr[4];
+ ofld_req4.src_mac_addr_lo32[2] = port->data_src_addr[3];
+ ofld_req4.src_mac_addr_lo32[3] = port->data_src_addr[2];
+ ofld_req4.src_mac_addr_hi16[0] = port->data_src_addr[1];
+ ofld_req4.src_mac_addr_hi16[1] = port->data_src_addr[0];
+ ofld_req4.dst_mac_addr_lo32[0] = hba->ctlr.dest_addr[5];/* fcf mac */
+ ofld_req4.dst_mac_addr_lo32[1] = hba->ctlr.dest_addr[4];
+ ofld_req4.dst_mac_addr_lo32[2] = hba->ctlr.dest_addr[3];
+ ofld_req4.dst_mac_addr_lo32[3] = hba->ctlr.dest_addr[2];
+ ofld_req4.dst_mac_addr_hi16[0] = hba->ctlr.dest_addr[1];
+ ofld_req4.dst_mac_addr_hi16[1] = hba->ctlr.dest_addr[0];
+
+ ofld_req4.lcq_addr_lo = (u32) tgt->lcq_dma;
+ ofld_req4.lcq_addr_hi = (u32)((u64) tgt->lcq_dma >> 32);
+
+ ofld_req4.confq_pbl_base_addr_lo = (u32) tgt->confq_pbl_dma;
+ ofld_req4.confq_pbl_base_addr_hi =
+ (u32)((u64) tgt->confq_pbl_dma >> 32);
+
+ kwqe_arr[0] = (struct kwqe *) &ofld_req1;
+ kwqe_arr[1] = (struct kwqe *) &ofld_req2;
+ kwqe_arr[2] = (struct kwqe *) &ofld_req3;
+ kwqe_arr[3] = (struct kwqe *) &ofld_req4;
+
+ if (hba->cnic && hba->cnic->submit_kwqes)
+ rc = hba->cnic->submit_kwqes(hba->cnic, kwqe_arr, num_kwqes);
+
+ return rc;
+}
+
+/**
+ * bnx2fc_send_session_enable_req - initiates FCoE Session enablement
+ *
+ * @port: port structure pointer
+ * @tgt: bnx2fc_rport structure pointer
+ */
+static int bnx2fc_send_session_enable_req(struct fcoe_port *port,
+ struct bnx2fc_rport *tgt)
+{
+ struct kwqe *kwqe_arr[2];
+ struct bnx2fc_hba *hba = port->priv;
+ struct fcoe_kwqe_conn_enable_disable enbl_req;
+ struct fc_lport *lport = port->lport;
+ struct fc_rport *rport = tgt->rport;
+ int num_kwqes = 1;
+ int rc = 0;
+ u32 port_id;
+
+ memset(&enbl_req, 0x00,
+ sizeof(struct fcoe_kwqe_conn_enable_disable));
+ enbl_req.hdr.op_code = FCOE_KWQE_OPCODE_ENABLE_CONN;
+ enbl_req.hdr.flags =
+ (FCOE_KWQE_LAYER_CODE << FCOE_KWQE_HEADER_LAYER_CODE_SHIFT);
+
+ enbl_req.src_mac_addr_lo32[0] = port->data_src_addr[5];
+ /* local mac */
+ enbl_req.src_mac_addr_lo32[1] = port->data_src_addr[4];
+ enbl_req.src_mac_addr_lo32[2] = port->data_src_addr[3];
+ enbl_req.src_mac_addr_lo32[3] = port->data_src_addr[2];
+ enbl_req.src_mac_addr_hi16[0] = port->data_src_addr[1];
+ enbl_req.src_mac_addr_hi16[1] = port->data_src_addr[0];
+
+ enbl_req.dst_mac_addr_lo32[0] = hba->ctlr.dest_addr[5];/* fcf mac */
+ enbl_req.dst_mac_addr_lo32[1] = hba->ctlr.dest_addr[4];
+ enbl_req.dst_mac_addr_lo32[2] = hba->ctlr.dest_addr[3];
+ enbl_req.dst_mac_addr_lo32[3] = hba->ctlr.dest_addr[2];
+ enbl_req.dst_mac_addr_hi16[0] = hba->ctlr.dest_addr[1];
+ enbl_req.dst_mac_addr_hi16[1] = hba->ctlr.dest_addr[0];
+
+ port_id = fc_host_port_id(lport->host);
+ if (port_id != tgt->sid) {
+ printk(KERN_ERR PFX "WARN: enable_req port_id = 0x%x,"
+ "sid = 0x%x\n", port_id, tgt->sid);
+ port_id = tgt->sid;
+ }
+ enbl_req.s_id[0] = (port_id & 0x000000FF);
+ enbl_req.s_id[1] = (port_id & 0x0000FF00) >> 8;
+ enbl_req.s_id[2] = (port_id & 0x00FF0000) >> 16;
+
+ port_id = rport->port_id;
+ enbl_req.d_id[0] = (port_id & 0x000000FF);
+ enbl_req.d_id[1] = (port_id & 0x0000FF00) >> 8;
+ enbl_req.d_id[2] = (port_id & 0x00FF0000) >> 16;
+ enbl_req.vlan_tag = hba->vlan_id <<
+ FCOE_KWQE_CONN_ENABLE_DISABLE_VLAN_ID_SHIFT;
+ enbl_req.vlan_tag |= 3 << FCOE_KWQE_CONN_ENABLE_DISABLE_PRIORITY_SHIFT;
+ enbl_req.vlan_flag = hba->vlan_enabled;
+ enbl_req.context_id = tgt->context_id;
+ enbl_req.conn_id = tgt->fcoe_conn_id;
+
+ kwqe_arr[0] = (struct kwqe *) &enbl_req;
+
+ if (hba->cnic && hba->cnic->submit_kwqes)
+ rc = hba->cnic->submit_kwqes(hba->cnic, kwqe_arr, num_kwqes);
+ return rc;
+}
+
+/**
+ * bnx2fc_send_session_disable_req - initiates FCoE Session disable
+ *
+ * @port: port structure pointer
+ * @tgt: bnx2fc_rport structure pointer
+ */
+int bnx2fc_send_session_disable_req(struct fcoe_port *port,
+ struct bnx2fc_rport *tgt)
+{
+ struct bnx2fc_hba *hba = port->priv;
+ struct fcoe_kwqe_conn_enable_disable disable_req;
+ struct kwqe *kwqe_arr[2];
+ struct fc_rport *rport = tgt->rport;
+ int num_kwqes = 1;
+ int rc = 0;
+ u32 port_id;
+
+ memset(&disable_req, 0x00,
+ sizeof(struct fcoe_kwqe_conn_enable_disable));
+ disable_req.hdr.op_code = FCOE_KWQE_OPCODE_DISABLE_CONN;
+ disable_req.hdr.flags =
+ (FCOE_KWQE_LAYER_CODE << FCOE_KWQE_HEADER_LAYER_CODE_SHIFT);
+
+ disable_req.src_mac_addr_lo32[0] = port->data_src_addr[5];
+ disable_req.src_mac_addr_lo32[2] = port->data_src_addr[3];
+ disable_req.src_mac_addr_lo32[3] = port->data_src_addr[2];
+ disable_req.src_mac_addr_hi16[0] = port->data_src_addr[1];
+ disable_req.src_mac_addr_hi16[1] = port->data_src_addr[0];
+
+ disable_req.dst_mac_addr_lo32[0] = hba->ctlr.dest_addr[5];/* fcf mac */
+ disable_req.dst_mac_addr_lo32[1] = hba->ctlr.dest_addr[4];
+ disable_req.dst_mac_addr_lo32[2] = hba->ctlr.dest_addr[3];
+ disable_req.dst_mac_addr_lo32[3] = hba->ctlr.dest_addr[2];
+ disable_req.dst_mac_addr_hi16[0] = hba->ctlr.dest_addr[1];
+ disable_req.dst_mac_addr_hi16[1] = hba->ctlr.dest_addr[0];
+
+ port_id = tgt->sid;
+ disable_req.s_id[0] = (port_id & 0x000000FF);
+ disable_req.s_id[1] = (port_id & 0x0000FF00) >> 8;
+ disable_req.s_id[2] = (port_id & 0x00FF0000) >> 16;
+
+
+ port_id = rport->port_id;
+ disable_req.d_id[0] = (port_id & 0x000000FF);
+ disable_req.d_id[1] = (port_id & 0x0000FF00) >> 8;
+ disable_req.d_id[2] = (port_id & 0x00FF0000) >> 16;
+ disable_req.context_id = tgt->context_id;
+ disable_req.conn_id = tgt->fcoe_conn_id;
+ disable_req.vlan_tag = hba->vlan_id <<
+ FCOE_KWQE_CONN_ENABLE_DISABLE_VLAN_ID_SHIFT;
+ disable_req.vlan_tag |=
+ 3 << FCOE_KWQE_CONN_ENABLE_DISABLE_PRIORITY_SHIFT;
+ disable_req.vlan_flag = hba->vlan_enabled;
+
+ kwqe_arr[0] = (struct kwqe *) &disable_req;
+
+ if (hba->cnic && hba->cnic->submit_kwqes)
+ rc = hba->cnic->submit_kwqes(hba->cnic, kwqe_arr, num_kwqes);
+
+ return rc;
+}
+
+/**
+ * bnx2fc_send_session_destroy_req - initiates FCoE Session destroy
+ *
+ * @port: port structure pointer
+ * @tgt: bnx2fc_rport structure pointer
+ */
+int bnx2fc_send_session_destroy_req(struct bnx2fc_hba *hba,
+ struct bnx2fc_rport *tgt)
+{
+ struct fcoe_kwqe_conn_destroy destroy_req;
+ struct kwqe *kwqe_arr[2];
+ int num_kwqes = 1;
+ int rc = 0;
+
+ memset(&destroy_req, 0x00, sizeof(struct fcoe_kwqe_conn_destroy));
+ destroy_req.hdr.op_code = FCOE_KWQE_OPCODE_DESTROY_CONN;
+ destroy_req.hdr.flags =
+ (FCOE_KWQE_LAYER_CODE << FCOE_KWQE_HEADER_LAYER_CODE_SHIFT);
+
+ destroy_req.context_id = tgt->context_id;
+ destroy_req.conn_id = tgt->fcoe_conn_id;
+
+ kwqe_arr[0] = (struct kwqe *) &destroy_req;
+
+ if (hba->cnic && hba->cnic->submit_kwqes)
+ rc = hba->cnic->submit_kwqes(hba->cnic, kwqe_arr, num_kwqes);
+
+ return rc;
+}
+
+static void bnx2fc_unsol_els_work(struct work_struct *work)
+{
+ struct bnx2fc_unsol_els *unsol_els;
+ struct fc_lport *lport;
+ struct fc_frame *fp;
+
+ unsol_els = container_of(work, struct bnx2fc_unsol_els, unsol_els_work);
+ lport = unsol_els->lport;
+ fp = unsol_els->fp;
+ fc_exch_recv(lport, fp);
+ kfree(unsol_els);
+}
+
+void bnx2fc_process_l2_frame_compl(struct bnx2fc_rport *tgt,
+ unsigned char *buf,
+ u32 frame_len, u16 l2_oxid)
+{
+ struct fcoe_port *port = tgt->port;
+ struct fc_lport *lport = port->lport;
+ struct bnx2fc_unsol_els *unsol_els;
+ struct fc_frame_header *fh;
+ struct fc_frame *fp;
+ struct sk_buff *skb;
+ u32 payload_len;
+ u32 crc;
+ u8 op;
+
+
+ unsol_els = kzalloc(sizeof(*unsol_els), GFP_ATOMIC);
+ if (!unsol_els) {
+ BNX2FC_TGT_DBG(tgt, "Unable to allocate unsol_work\n");
+ return;
+ }
+
+ BNX2FC_TGT_DBG(tgt, "l2_frame_compl l2_oxid = 0x%x, frame_len = %d\n",
+ l2_oxid, frame_len);
+
+ payload_len = frame_len - sizeof(struct fc_frame_header);
+
+ fp = fc_frame_alloc(lport, payload_len);
+ if (!fp) {
+ printk(KERN_ERR PFX "fc_frame_alloc failure\n");
+ return;
+ }
+
+ fh = (struct fc_frame_header *) fc_frame_header_get(fp);
+ /* Copy FC Frame header and payload into the frame */
+ memcpy(fh, buf, frame_len);
+
+ if (l2_oxid != FC_XID_UNKNOWN)
+ fh->fh_ox_id = htons(l2_oxid);
+
+ skb = fp_skb(fp);
+
+ if ((fh->fh_r_ctl == FC_RCTL_ELS_REQ) ||
+ (fh->fh_r_ctl == FC_RCTL_ELS_REP)) {
+
+ if (fh->fh_type == FC_TYPE_ELS) {
+ op = fc_frame_payload_op(fp);
+ if ((op == ELS_TEST) || (op == ELS_ESTC) ||
+ (op == ELS_FAN) || (op == ELS_CSU)) {
+ /*
+ * No need to reply for these
+ * ELS requests
+ */
+ printk(KERN_ERR PFX "dropping ELS 0x%x\n", op);
+ kfree_skb(skb);
+ return;
+ }
+ }
+ crc = fcoe_fc_crc(fp);
+ fc_frame_init(fp);
+ fr_dev(fp) = lport;
+ fr_sof(fp) = FC_SOF_I3;
+ fr_eof(fp) = FC_EOF_T;
+ fr_crc(fp) = cpu_to_le32(~crc);
+ unsol_els->lport = lport;
+ unsol_els->fp = fp;
+ INIT_WORK(&unsol_els->unsol_els_work, bnx2fc_unsol_els_work);
+ queue_work(bnx2fc_wq, &unsol_els->unsol_els_work);
+ } else {
+ BNX2FC_HBA_DBG(lport, "fh_r_ctl = 0x%x\n", fh->fh_r_ctl);
+ kfree_skb(skb);
+ }
+}
+
+static void bnx2fc_process_unsol_compl(struct bnx2fc_rport *tgt, u16 wqe)
+{
+ u8 num_rq;
+ struct fcoe_err_report_entry *err_entry;
+ unsigned char *rq_data;
+ unsigned char *buf = NULL, *buf1;
+ int i;
+ u16 xid;
+ u32 frame_len, len;
+ struct bnx2fc_cmd *io_req = NULL;
+ struct fcoe_task_ctx_entry *task, *task_page;
+ struct bnx2fc_hba *hba = tgt->port->priv;
+ int task_idx, index;
+ int rc = 0;
+
+
+ BNX2FC_TGT_DBG(tgt, "Entered UNSOL COMPLETION wqe = 0x%x\n", wqe);
+ switch (wqe & FCOE_UNSOLICITED_CQE_SUBTYPE) {
+ case FCOE_UNSOLICITED_FRAME_CQE_TYPE:
+ frame_len = (wqe & FCOE_UNSOLICITED_CQE_PKT_LEN) >>
+ FCOE_UNSOLICITED_CQE_PKT_LEN_SHIFT;
+
+ num_rq = (frame_len + BNX2FC_RQ_BUF_SZ - 1) / BNX2FC_RQ_BUF_SZ;
+
+ rq_data = (unsigned char *)bnx2fc_get_next_rqe(tgt, num_rq);
+ if (rq_data) {
+ buf = rq_data;
+ } else {
+ buf1 = buf = kmalloc((num_rq * BNX2FC_RQ_BUF_SZ),
+ GFP_ATOMIC);
+
+ if (!buf1) {
+ BNX2FC_TGT_DBG(tgt, "Memory alloc failure\n");
+ break;
+ }
+
+ for (i = 0; i < num_rq; i++) {
+ rq_data = (unsigned char *)
+ bnx2fc_get_next_rqe(tgt, 1);
+ len = BNX2FC_RQ_BUF_SZ;
+ memcpy(buf1, rq_data, len);
+ buf1 += len;
+ }
+ }
+ bnx2fc_process_l2_frame_compl(tgt, buf, frame_len,
+ FC_XID_UNKNOWN);
+
+ if (buf != rq_data)
+ kfree(buf);
+ bnx2fc_return_rqe(tgt, num_rq);
+ break;
+
+ case FCOE_ERROR_DETECTION_CQE_TYPE:
+ /*
+ *In case of error reporting CQE a single RQ entry
+ * is consumes.
+ */
+ spin_lock_bh(&tgt->tgt_lock);
+ num_rq = 1;
+ err_entry = (struct fcoe_err_report_entry *)
+ bnx2fc_get_next_rqe(tgt, 1);
+ xid = err_entry->fc_hdr.ox_id;
+ BNX2FC_TGT_DBG(tgt, "Unsol Error Frame OX_ID = 0x%x\n", xid);
+ BNX2FC_TGT_DBG(tgt, "err_warn_bitmap = %08x:%08x\n",
+ err_entry->err_warn_bitmap_hi,
+ err_entry->err_warn_bitmap_lo);
+ BNX2FC_TGT_DBG(tgt, "buf_offsets - tx = 0x%x, rx = 0x%x\n",
+ err_entry->tx_buf_off, err_entry->rx_buf_off);
+
+ bnx2fc_return_rqe(tgt, 1);
+
+ if (xid > BNX2FC_MAX_XID) {
+ BNX2FC_TGT_DBG(tgt, "xid(0x%x) out of FW range\n",
+ xid);
+ spin_unlock_bh(&tgt->tgt_lock);
+ break;
+ }
+
+ task_idx = xid / BNX2FC_TASKS_PER_PAGE;
+ index = xid % BNX2FC_TASKS_PER_PAGE;
+ task_page = (struct fcoe_task_ctx_entry *)
+ hba->task_ctx[task_idx];
+ task = &(task_page[index]);
+
+ io_req = (struct bnx2fc_cmd *)hba->cmd_mgr->cmds[xid];
+ if (!io_req) {
+ spin_unlock_bh(&tgt->tgt_lock);
+ break;
+ }
+
+ if (io_req->cmd_type != BNX2FC_SCSI_CMD) {
+ printk(KERN_ERR PFX "err_warn: Not a SCSI cmd\n");
+ spin_unlock_bh(&tgt->tgt_lock);
+ break;
+ }
+
+ if (test_and_clear_bit(BNX2FC_FLAG_IO_CLEANUP,
+ &io_req->req_flags)) {
+ BNX2FC_IO_DBG(io_req, "unsol_err: cleanup in "
+ "progress.. ignore unsol err\n");
+ spin_unlock_bh(&tgt->tgt_lock);
+ break;
+ }
+
+ /*
+ * If ABTS is already in progress, and FW error is
+ * received after that, do not cancel the timeout_work
+ * and let the error recovery continue by explicitly
+ * logging out the target, when the ABTS eventually
+ * times out.
+ */
+ if (!test_and_set_bit(BNX2FC_FLAG_ISSUE_ABTS,
+ &io_req->req_flags)) {
+ /*
+ * Cancel the timeout_work, as we received IO
+ * completion with FW error.
+ */
+ if (cancel_delayed_work(&io_req->timeout_work))
+ kref_put(&io_req->refcount,
+ bnx2fc_cmd_release); /* timer hold */
+
+ rc = bnx2fc_initiate_abts(io_req);
+ if (rc != SUCCESS) {
+ BNX2FC_IO_DBG(io_req, "err_warn: initiate_abts "
+ "failed. issue cleanup\n");
+ rc = bnx2fc_initiate_cleanup(io_req);
+ BUG_ON(rc);
+ }
+ } else
+ printk(KERN_ERR PFX "err_warn: io_req (0x%x) already "
+ "in ABTS processing\n", xid);
+ spin_unlock_bh(&tgt->tgt_lock);
+ break;
+
+ case FCOE_WARNING_DETECTION_CQE_TYPE:
+ /*
+ *In case of warning reporting CQE a single RQ entry
+ * is consumes.
+ */
+ num_rq = 1;
+ err_entry = (struct fcoe_err_report_entry *)
+ bnx2fc_get_next_rqe(tgt, 1);
+ xid = cpu_to_be16(err_entry->fc_hdr.ox_id);
+ BNX2FC_TGT_DBG(tgt, "Unsol Warning Frame OX_ID = 0x%x\n", xid);
+ BNX2FC_TGT_DBG(tgt, "err_warn_bitmap = %08x:%08x",
+ err_entry->err_warn_bitmap_hi,
+ err_entry->err_warn_bitmap_lo);
+ BNX2FC_TGT_DBG(tgt, "buf_offsets - tx = 0x%x, rx = 0x%x",
+ err_entry->tx_buf_off, err_entry->rx_buf_off);
+
+ bnx2fc_return_rqe(tgt, 1);
+ break;
+
+ default:
+ printk(KERN_ERR PFX "Unsol Compl: Invalid CQE Subtype\n");
+ break;
+ }
+}
+
+void bnx2fc_process_cq_compl(struct bnx2fc_rport *tgt, u16 wqe)
+{
+ struct fcoe_task_ctx_entry *task;
+ struct fcoe_task_ctx_entry *task_page;
+ struct fcoe_port *port = tgt->port;
+ struct bnx2fc_hba *hba = port->priv;
+ struct bnx2fc_cmd *io_req;
+ int task_idx, index;
+ u16 xid;
+ u8 cmd_type;
+ u8 rx_state = 0;
+ u8 num_rq;
+
+ spin_lock_bh(&tgt->tgt_lock);
+ xid = wqe & FCOE_PEND_WQ_CQE_TASK_ID;
+ if (xid >= BNX2FC_MAX_TASKS) {
+ printk(KERN_ALERT PFX "ERROR:xid out of range\n");
+ spin_unlock_bh(&tgt->tgt_lock);
+ return;
+ }
+ task_idx = xid / BNX2FC_TASKS_PER_PAGE;
+ index = xid % BNX2FC_TASKS_PER_PAGE;
+ task_page = (struct fcoe_task_ctx_entry *)hba->task_ctx[task_idx];
+ task = &(task_page[index]);
+
+ num_rq = ((task->rx_wr_tx_rd.rx_flags &
+ FCOE_TASK_CTX_ENTRY_RXWR_TXRD_NUM_RQ_WQE) >>
+ FCOE_TASK_CTX_ENTRY_RXWR_TXRD_NUM_RQ_WQE_SHIFT);
+
+ io_req = (struct bnx2fc_cmd *)hba->cmd_mgr->cmds[xid];
+
+ if (io_req == NULL) {
+ printk(KERN_ERR PFX "ERROR? cq_compl - io_req is NULL\n");
+ spin_unlock_bh(&tgt->tgt_lock);
+ return;
+ }
+
+ /* Timestamp IO completion time */
+ cmd_type = io_req->cmd_type;
+
+ /* optimized completion path */
+ if (cmd_type == BNX2FC_SCSI_CMD) {
+ rx_state = ((task->rx_wr_tx_rd.rx_flags &
+ FCOE_TASK_CTX_ENTRY_RXWR_TXRD_RX_STATE) >>
+ FCOE_TASK_CTX_ENTRY_RXWR_TXRD_RX_STATE_SHIFT);
+
+ if (rx_state == FCOE_TASK_RX_STATE_COMPLETED) {
+ bnx2fc_process_scsi_cmd_compl(io_req, task, num_rq);
+ spin_unlock_bh(&tgt->tgt_lock);
+ return;
+ }
+ }
+
+ /* Process other IO completion types */
+ switch (cmd_type) {
+ case BNX2FC_SCSI_CMD:
+ if (rx_state == FCOE_TASK_RX_STATE_ABTS_COMPLETED)
+ bnx2fc_process_abts_compl(io_req, task, num_rq);
+ else if (rx_state ==
+ FCOE_TASK_RX_STATE_EXCHANGE_CLEANUP_COMPLETED)
+ bnx2fc_process_cleanup_compl(io_req, task, num_rq);
+ else
+ printk(KERN_ERR PFX "Invalid rx state - %d\n",
+ rx_state);
+ break;
+
+ case BNX2FC_TASK_MGMT_CMD:
+ BNX2FC_IO_DBG(io_req, "Processing TM complete\n");
+ bnx2fc_process_tm_compl(io_req, task, num_rq);
+ break;
+
+ case BNX2FC_ABTS:
+ /*
+ * ABTS request received by firmware. ABTS response
+ * will be delivered to the task belonging to the IO
+ * that was aborted
+ */
+ BNX2FC_IO_DBG(io_req, "cq_compl- ABTS sent out by fw\n");
+ kref_put(&io_req->refcount, bnx2fc_cmd_release);
+ break;
+
+ case BNX2FC_ELS:
+ BNX2FC_IO_DBG(io_req, "cq_compl - call process_els_compl\n");
+ bnx2fc_process_els_compl(io_req, task, num_rq);
+ break;
+
+ case BNX2FC_CLEANUP:
+ BNX2FC_IO_DBG(io_req, "cq_compl- cleanup resp rcvd\n");
+ kref_put(&io_req->refcount, bnx2fc_cmd_release);
+ break;
+
+ default:
+ printk(KERN_ERR PFX "Invalid cmd_type %d\n", cmd_type);
+ break;
+ }
+ spin_unlock_bh(&tgt->tgt_lock);
+}
+
+struct bnx2fc_work *bnx2fc_alloc_work(struct bnx2fc_rport *tgt, u16 wqe)
+{
+ struct bnx2fc_work *work;
+ work = kzalloc(sizeof(struct bnx2fc_work), GFP_ATOMIC);
+ if (!work)
+ return NULL;
+
+ INIT_LIST_HEAD(&work->list);
+ work->tgt = tgt;
+ work->wqe = wqe;
+ return work;
+}
+
+int bnx2fc_process_new_cqes(struct bnx2fc_rport *tgt)
+{
+ struct fcoe_cqe *cq;
+ u32 cq_cons;
+ struct fcoe_cqe *cqe;
+ u16 wqe;
+ bool more_cqes_found = false;
+
+ /*
+ * cq_lock is a low contention lock used to protect
+ * the CQ data structure from being freed up during
+ * the upload operation
+ */
+ spin_lock_bh(&tgt->cq_lock);
+
+ if (!tgt->cq) {
+ printk(KERN_ERR PFX "process_new_cqes: cq is NULL\n");
+ spin_unlock_bh(&tgt->cq_lock);
+ return 0;
+ }
+ cq = tgt->cq;
+ cq_cons = tgt->cq_cons_idx;
+ cqe = &cq[cq_cons];
+
+ do {
+ more_cqes_found ^= true;
+
+ while (((wqe = cqe->wqe) & FCOE_CQE_TOGGLE_BIT) ==
+ (tgt->cq_curr_toggle_bit <<
+ FCOE_CQE_TOGGLE_BIT_SHIFT)) {
+
+ /* new entry on the cq */
+ if (wqe & FCOE_CQE_CQE_TYPE) {
+ /* Unsolicited event notification */
+ bnx2fc_process_unsol_compl(tgt, wqe);
+ } else {
+ struct bnx2fc_work *work = NULL;
+ struct bnx2fc_percpu_s *fps = NULL;
+ unsigned int cpu = wqe % num_possible_cpus();
+
+ fps = &per_cpu(bnx2fc_percpu, cpu);
+ spin_lock_bh(&fps->fp_work_lock);
+ if (unlikely(!fps->iothread))
+ goto unlock;
+
+ work = bnx2fc_alloc_work(tgt, wqe);
+ if (work)
+ list_add_tail(&work->list,
+ &fps->work_list);
+unlock:
+ spin_unlock_bh(&fps->fp_work_lock);
+
+ /* Pending work request completion */
+ if (fps->iothread && work)
+ wake_up_process(fps->iothread);
+ else
+ bnx2fc_process_cq_compl(tgt, wqe);
+ }
+ cqe++;
+ tgt->cq_cons_idx++;
+
+ if (tgt->cq_cons_idx == BNX2FC_CQ_WQES_MAX) {
+ tgt->cq_cons_idx = 0;
+ cqe = cq;
+ tgt->cq_curr_toggle_bit =
+ 1 - tgt->cq_curr_toggle_bit;
+ }
+ }
+ /* Re-arm CQ */
+ if (more_cqes_found) {
+ tgt->conn_db->cq_arm.lo = -1;
+ wmb();
+ }
+ } while (more_cqes_found);
+
+ /*
+ * Commit tgt->cq_cons_idx change to the memory
+ * spin_lock implies full memory barrier, no need to smp_wmb
+ */
+
+ spin_unlock_bh(&tgt->cq_lock);
+ return 0;
+}
+
+/**
+ * bnx2fc_fastpath_notification - process global event queue (KCQ)
+ *
+ * @hba: adapter structure pointer
+ * @new_cqe_kcqe: pointer to newly DMA'd KCQ entry
+ *
+ * Fast path event notification handler
+ */
+static void bnx2fc_fastpath_notification(struct bnx2fc_hba *hba,
+ struct fcoe_kcqe *new_cqe_kcqe)
+{
+ u32 conn_id = new_cqe_kcqe->fcoe_conn_id;
+ struct bnx2fc_rport *tgt = hba->tgt_ofld_list[conn_id];
+
+ if (!tgt) {
+ printk(KERN_ALERT PFX "conn_id 0x%x not valid\n", conn_id);
+ return;
+ }
+
+ bnx2fc_process_new_cqes(tgt);
+}
+
+/**
+ * bnx2fc_process_ofld_cmpl - process FCoE session offload completion
+ *
+ * @hba: adapter structure pointer
+ * @ofld_kcqe: connection offload kcqe pointer
+ *
+ * handle session offload completion, enable the session if offload is
+ * successful.
+ */
+static void bnx2fc_process_ofld_cmpl(struct bnx2fc_hba *hba,
+ struct fcoe_kcqe *ofld_kcqe)
+{
+ struct bnx2fc_rport *tgt;
+ struct fcoe_port *port;
+ u32 conn_id;
+ u32 context_id;
+ int rc;
+
+ conn_id = ofld_kcqe->fcoe_conn_id;
+ context_id = ofld_kcqe->fcoe_conn_context_id;
+ tgt = hba->tgt_ofld_list[conn_id];
+ if (!tgt) {
+ printk(KERN_ALERT PFX "ERROR:ofld_cmpl: No pending ofld req\n");
+ return;
+ }
+ BNX2FC_TGT_DBG(tgt, "Entered ofld compl - context_id = 0x%x\n",
+ ofld_kcqe->fcoe_conn_context_id);
+ port = tgt->port;
+ if (hba != tgt->port->priv) {
+ printk(KERN_ALERT PFX "ERROR:ofld_cmpl: HBA mis-match\n");
+ goto ofld_cmpl_err;
+ }
+ /*
+ * cnic has allocated a context_id for this session; use this
+ * while enabling the session.
+ */
+ tgt->context_id = context_id;
+ if (ofld_kcqe->completion_status) {
+ if (ofld_kcqe->completion_status ==
+ FCOE_KCQE_COMPLETION_STATUS_CTX_ALLOC_FAILURE) {
+ printk(KERN_ERR PFX "unable to allocate FCoE context "
+ "resources\n");
+ set_bit(BNX2FC_FLAG_CTX_ALLOC_FAILURE, &tgt->flags);
+ }
+ goto ofld_cmpl_err;
+ } else {
+
+ /* now enable the session */
+ rc = bnx2fc_send_session_enable_req(port, tgt);
+ if (rc) {
+ printk(KERN_ALERT PFX "enable session failed\n");
+ goto ofld_cmpl_err;
+ }
+ }
+ return;
+ofld_cmpl_err:
+ set_bit(BNX2FC_FLAG_OFLD_REQ_CMPL, &tgt->flags);
+ wake_up_interruptible(&tgt->ofld_wait);
+}
+
+/**
+ * bnx2fc_process_enable_conn_cmpl - process FCoE session enable completion
+ *
+ * @hba: adapter structure pointer
+ * @ofld_kcqe: connection offload kcqe pointer
+ *
+ * handle session enable completion, mark the rport as ready
+ */
+
+static void bnx2fc_process_enable_conn_cmpl(struct bnx2fc_hba *hba,
+ struct fcoe_kcqe *ofld_kcqe)
+{
+ struct bnx2fc_rport *tgt;
+ u32 conn_id;
+ u32 context_id;
+
+ context_id = ofld_kcqe->fcoe_conn_context_id;
+ conn_id = ofld_kcqe->fcoe_conn_id;
+ tgt = hba->tgt_ofld_list[conn_id];
+ if (!tgt) {
+ printk(KERN_ALERT PFX "ERROR:enbl_cmpl: No pending ofld req\n");
+ return;
+ }
+
+ BNX2FC_TGT_DBG(tgt, "Enable compl - context_id = 0x%x\n",
+ ofld_kcqe->fcoe_conn_context_id);
+
+ /*
+ * context_id should be the same for this target during offload
+ * and enable
+ */
+ if (tgt->context_id != context_id) {
+ printk(KERN_ALERT PFX "context id mis-match\n");
+ return;
+ }
+ if (hba != tgt->port->priv) {
+ printk(KERN_ALERT PFX "bnx2fc-enbl_cmpl: HBA mis-match\n");
+ goto enbl_cmpl_err;
+ }
+ if (ofld_kcqe->completion_status) {
+ goto enbl_cmpl_err;
+ } else {
+ /* enable successful - rport ready for issuing IOs */
+ set_bit(BNX2FC_FLAG_OFFLOADED, &tgt->flags);
+ set_bit(BNX2FC_FLAG_OFLD_REQ_CMPL, &tgt->flags);
+ wake_up_interruptible(&tgt->ofld_wait);
+ }
+ return;
+
+enbl_cmpl_err:
+ set_bit(BNX2FC_FLAG_OFLD_REQ_CMPL, &tgt->flags);
+ wake_up_interruptible(&tgt->ofld_wait);
+}
+
+static void bnx2fc_process_conn_disable_cmpl(struct bnx2fc_hba *hba,
+ struct fcoe_kcqe *disable_kcqe)
+{
+
+ struct bnx2fc_rport *tgt;
+ u32 conn_id;
+
+ conn_id = disable_kcqe->fcoe_conn_id;
+ tgt = hba->tgt_ofld_list[conn_id];
+ if (!tgt) {
+ printk(KERN_ALERT PFX "ERROR: disable_cmpl: No disable req\n");
+ return;
+ }
+
+ BNX2FC_TGT_DBG(tgt, PFX "disable_cmpl: conn_id %d\n", conn_id);
+
+ if (disable_kcqe->completion_status) {
+ printk(KERN_ALERT PFX "ERROR: Disable failed with cmpl status %d\n",
+ disable_kcqe->completion_status);
+ return;
+ } else {
+ /* disable successful */
+ BNX2FC_TGT_DBG(tgt, "disable successful\n");
+ clear_bit(BNX2FC_FLAG_OFFLOADED, &tgt->flags);
+ set_bit(BNX2FC_FLAG_DISABLED, &tgt->flags);
+ set_bit(BNX2FC_FLAG_UPLD_REQ_COMPL, &tgt->flags);
+ wake_up_interruptible(&tgt->upld_wait);
+ }
+}
+
+static void bnx2fc_process_conn_destroy_cmpl(struct bnx2fc_hba *hba,
+ struct fcoe_kcqe *destroy_kcqe)
+{
+ struct bnx2fc_rport *tgt;
+ u32 conn_id;
+
+ conn_id = destroy_kcqe->fcoe_conn_id;
+ tgt = hba->tgt_ofld_list[conn_id];
+ if (!tgt) {
+ printk(KERN_ALERT PFX "destroy_cmpl: No destroy req\n");
+ return;
+ }
+
+ BNX2FC_TGT_DBG(tgt, "destroy_cmpl: conn_id %d\n", conn_id);
+
+ if (destroy_kcqe->completion_status) {
+ printk(KERN_ALERT PFX "Destroy conn failed, cmpl status %d\n",
+ destroy_kcqe->completion_status);
+ return;
+ } else {
+ /* destroy successful */
+ BNX2FC_TGT_DBG(tgt, "upload successful\n");
+ clear_bit(BNX2FC_FLAG_DISABLED, &tgt->flags);
+ set_bit(BNX2FC_FLAG_DESTROYED, &tgt->flags);
+ set_bit(BNX2FC_FLAG_UPLD_REQ_COMPL, &tgt->flags);
+ wake_up_interruptible(&tgt->upld_wait);
+ }
+}
+
+static void bnx2fc_init_failure(struct bnx2fc_hba *hba, u32 err_code)
+{
+ switch (err_code) {
+ case FCOE_KCQE_COMPLETION_STATUS_INVALID_OPCODE:
+ printk(KERN_ERR PFX "init_failure due to invalid opcode\n");
+ break;
+
+ case FCOE_KCQE_COMPLETION_STATUS_CTX_ALLOC_FAILURE:
+ printk(KERN_ERR PFX "init failed due to ctx alloc failure\n");
+ break;
+
+ case FCOE_KCQE_COMPLETION_STATUS_NIC_ERROR:
+ printk(KERN_ERR PFX "init_failure due to NIC error\n");
+ break;
+
+ default:
+ printk(KERN_ERR PFX "Unknown Error code %d\n", err_code);
+ }
+}
+
+/**
+ * bnx2fc_indicae_kcqe - process KCQE
+ *
+ * @hba: adapter structure pointer
+ * @kcqe: kcqe pointer
+ * @num_cqe: Number of completion queue elements
+ *
+ * Generic KCQ event handler
+ */
+void bnx2fc_indicate_kcqe(void *context, struct kcqe *kcq[],
+ u32 num_cqe)
+{
+ struct bnx2fc_hba *hba = (struct bnx2fc_hba *)context;
+ int i = 0;
+ struct fcoe_kcqe *kcqe = NULL;
+
+ while (i < num_cqe) {
+ kcqe = (struct fcoe_kcqe *) kcq[i++];
+
+ switch (kcqe->op_code) {
+ case FCOE_KCQE_OPCODE_CQ_EVENT_NOTIFICATION:
+ bnx2fc_fastpath_notification(hba, kcqe);
+ break;
+
+ case FCOE_KCQE_OPCODE_OFFLOAD_CONN:
+ bnx2fc_process_ofld_cmpl(hba, kcqe);
+ break;
+
+ case FCOE_KCQE_OPCODE_ENABLE_CONN:
+ bnx2fc_process_enable_conn_cmpl(hba, kcqe);
+ break;
+
+ case FCOE_KCQE_OPCODE_INIT_FUNC:
+ if (kcqe->completion_status !=
+ FCOE_KCQE_COMPLETION_STATUS_SUCCESS) {
+ bnx2fc_init_failure(hba,
+ kcqe->completion_status);
+ } else {
+ set_bit(ADAPTER_STATE_UP, &hba->adapter_state);
+ bnx2fc_get_link_state(hba);
+ printk(KERN_INFO PFX "[%.2x]: FCOE_INIT passed\n",
+ (u8)hba->pcidev->bus->number);
+ }
+ break;
+
+ case FCOE_KCQE_OPCODE_DESTROY_FUNC:
+ if (kcqe->completion_status !=
+ FCOE_KCQE_COMPLETION_STATUS_SUCCESS) {
+
+ printk(KERN_ERR PFX "DESTROY failed\n");
+ } else {
+ printk(KERN_ERR PFX "DESTROY success\n");
+ }
+ hba->flags |= BNX2FC_FLAG_DESTROY_CMPL;
+ wake_up_interruptible(&hba->destroy_wait);
+ break;
+
+ case FCOE_KCQE_OPCODE_DISABLE_CONN:
+ bnx2fc_process_conn_disable_cmpl(hba, kcqe);
+ break;
+
+ case FCOE_KCQE_OPCODE_DESTROY_CONN:
+ bnx2fc_process_conn_destroy_cmpl(hba, kcqe);
+ break;
+
+ case FCOE_KCQE_OPCODE_STAT_FUNC:
+ if (kcqe->completion_status !=
+ FCOE_KCQE_COMPLETION_STATUS_SUCCESS)
+ printk(KERN_ERR PFX "STAT failed\n");
+ complete(&hba->stat_req_done);
+ break;
+
+ case FCOE_KCQE_OPCODE_FCOE_ERROR:
+ /* fall thru */
+ default:
+ printk(KERN_ALERT PFX "unknown opcode 0x%x\n",
+ kcqe->op_code);
+ }
+ }
+}
+
+void bnx2fc_add_2_sq(struct bnx2fc_rport *tgt, u16 xid)
+{
+ struct fcoe_sqe *sqe;
+
+ sqe = &tgt->sq[tgt->sq_prod_idx];
+
+ /* Fill SQ WQE */
+ sqe->wqe = xid << FCOE_SQE_TASK_ID_SHIFT;
+ sqe->wqe |= tgt->sq_curr_toggle_bit << FCOE_SQE_TOGGLE_BIT_SHIFT;
+
+ /* Advance SQ Prod Idx */
+ if (++tgt->sq_prod_idx == BNX2FC_SQ_WQES_MAX) {
+ tgt->sq_prod_idx = 0;
+ tgt->sq_curr_toggle_bit = 1 - tgt->sq_curr_toggle_bit;
+ }
+}
+
+void bnx2fc_ring_doorbell(struct bnx2fc_rport *tgt)
+{
+ struct b577xx_doorbell_set_prod ev_doorbell;
+ u32 msg;
+
+ wmb();
+
+ memset(&ev_doorbell, 0, sizeof(struct b577xx_doorbell_set_prod));
+ ev_doorbell.header.header = B577XX_DOORBELL_HDR_DB_TYPE;
+
+ ev_doorbell.prod = tgt->sq_prod_idx |
+ (tgt->sq_curr_toggle_bit << 15);
+ ev_doorbell.header.header |= B577XX_FCOE_CONNECTION_TYPE <<
+ B577XX_DOORBELL_HDR_CONN_TYPE_SHIFT;
+ msg = *((u32 *)&ev_doorbell);
+ writel(cpu_to_le32(msg), tgt->ctx_base);
+
+ mmiowb();
+
+}
+
+int bnx2fc_map_doorbell(struct bnx2fc_rport *tgt)
+{
+ u32 context_id = tgt->context_id;
+ struct fcoe_port *port = tgt->port;
+ u32 reg_off;
+ resource_size_t reg_base;
+ struct bnx2fc_hba *hba = port->priv;
+
+ reg_base = pci_resource_start(hba->pcidev,
+ BNX2X_DOORBELL_PCI_BAR);
+ reg_off = BNX2FC_5771X_DB_PAGE_SIZE *
+ (context_id & 0x1FFFF) + DPM_TRIGER_TYPE;
+ tgt->ctx_base = ioremap_nocache(reg_base + reg_off, 4);
+ if (!tgt->ctx_base)
+ return -ENOMEM;
+ return 0;
+}
+
+char *bnx2fc_get_next_rqe(struct bnx2fc_rport *tgt, u8 num_items)
+{
+ char *buf = (char *)tgt->rq + (tgt->rq_cons_idx * BNX2FC_RQ_BUF_SZ);
+
+ if (tgt->rq_cons_idx + num_items > BNX2FC_RQ_WQES_MAX)
+ return NULL;
+
+ tgt->rq_cons_idx += num_items;
+
+ if (tgt->rq_cons_idx >= BNX2FC_RQ_WQES_MAX)
+ tgt->rq_cons_idx -= BNX2FC_RQ_WQES_MAX;
+
+ return buf;
+}
+
+void bnx2fc_return_rqe(struct bnx2fc_rport *tgt, u8 num_items)
+{
+ /* return the rq buffer */
+ u32 next_prod_idx = tgt->rq_prod_idx + num_items;
+ if ((next_prod_idx & 0x7fff) == BNX2FC_RQ_WQES_MAX) {
+ /* Wrap around RQ */
+ next_prod_idx += 0x8000 - BNX2FC_RQ_WQES_MAX;
+ }
+ tgt->rq_prod_idx = next_prod_idx;
+ tgt->conn_db->rq_prod = tgt->rq_prod_idx;
+}
+
+void bnx2fc_init_cleanup_task(struct bnx2fc_cmd *io_req,
+ struct fcoe_task_ctx_entry *task,
+ u16 orig_xid)
+{
+ u8 task_type = FCOE_TASK_TYPE_EXCHANGE_CLEANUP;
+ struct bnx2fc_rport *tgt = io_req->tgt;
+ u32 context_id = tgt->context_id;
+
+ memset(task, 0, sizeof(struct fcoe_task_ctx_entry));
+
+ /* Tx Write Rx Read */
+ task->tx_wr_rx_rd.tx_flags = FCOE_TASK_TX_STATE_EXCHANGE_CLEANUP <<
+ FCOE_TASK_CTX_ENTRY_TXWR_RXRD_TX_STATE_SHIFT;
+ task->tx_wr_rx_rd.init_flags = task_type <<
+ FCOE_TASK_CTX_ENTRY_TXWR_RXRD_TASK_TYPE_SHIFT;
+ task->tx_wr_rx_rd.init_flags |= FCOE_TASK_CLASS_TYPE_3 <<
+ FCOE_TASK_CTX_ENTRY_TXWR_RXRD_CLASS_TYPE_SHIFT;
+ /* Common */
+ task->cmn.common_flags = context_id <<
+ FCOE_TASK_CTX_ENTRY_TX_RX_CMN_CID_SHIFT;
+ task->cmn.general.cleanup_info.task_id = orig_xid;
+
+
+}
+
+void bnx2fc_init_mp_task(struct bnx2fc_cmd *io_req,
+ struct fcoe_task_ctx_entry *task)
+{
+ struct bnx2fc_mp_req *mp_req = &(io_req->mp_req);
+ struct bnx2fc_rport *tgt = io_req->tgt;
+ struct fc_frame_header *fc_hdr;
+ u8 task_type = 0;
+ u64 *hdr;
+ u64 temp_hdr[3];
+ u32 context_id;
+
+
+ /* Obtain task_type */
+ if ((io_req->cmd_type == BNX2FC_TASK_MGMT_CMD) ||
+ (io_req->cmd_type == BNX2FC_ELS)) {
+ task_type = FCOE_TASK_TYPE_MIDPATH;
+ } else if (io_req->cmd_type == BNX2FC_ABTS) {
+ task_type = FCOE_TASK_TYPE_ABTS;
+ }
+
+ memset(task, 0, sizeof(struct fcoe_task_ctx_entry));
+
+ /* Setup the task from io_req for easy reference */
+ io_req->task = task;
+
+ BNX2FC_IO_DBG(io_req, "Init MP task for cmd_type = %d task_type = %d\n",
+ io_req->cmd_type, task_type);
+
+ /* Tx only */
+ if ((task_type == FCOE_TASK_TYPE_MIDPATH) ||
+ (task_type == FCOE_TASK_TYPE_UNSOLICITED)) {
+ task->tx_wr_only.sgl_ctx.mul_sges.cur_sge_addr.lo =
+ (u32)mp_req->mp_req_bd_dma;
+ task->tx_wr_only.sgl_ctx.mul_sges.cur_sge_addr.hi =
+ (u32)((u64)mp_req->mp_req_bd_dma >> 32);
+ task->tx_wr_only.sgl_ctx.mul_sges.sgl_size = 1;
+ BNX2FC_IO_DBG(io_req, "init_mp_task - bd_dma = 0x%llx\n",
+ (unsigned long long)mp_req->mp_req_bd_dma);
+ }
+
+ /* Tx Write Rx Read */
+ task->tx_wr_rx_rd.tx_flags = FCOE_TASK_TX_STATE_INIT <<
+ FCOE_TASK_CTX_ENTRY_TXWR_RXRD_TX_STATE_SHIFT;
+ task->tx_wr_rx_rd.init_flags = task_type <<
+ FCOE_TASK_CTX_ENTRY_TXWR_RXRD_TASK_TYPE_SHIFT;
+ task->tx_wr_rx_rd.init_flags |= FCOE_TASK_DEV_TYPE_DISK <<
+ FCOE_TASK_CTX_ENTRY_TXWR_RXRD_DEV_TYPE_SHIFT;
+ task->tx_wr_rx_rd.init_flags |= FCOE_TASK_CLASS_TYPE_3 <<
+ FCOE_TASK_CTX_ENTRY_TXWR_RXRD_CLASS_TYPE_SHIFT;
+
+ /* Common */
+ task->cmn.data_2_trns = io_req->data_xfer_len;
+ context_id = tgt->context_id;
+ task->cmn.common_flags = context_id <<
+ FCOE_TASK_CTX_ENTRY_TX_RX_CMN_CID_SHIFT;
+ task->cmn.common_flags |= 1 <<
+ FCOE_TASK_CTX_ENTRY_TX_RX_CMN_VALID_SHIFT;
+ task->cmn.common_flags |= 1 <<
+ FCOE_TASK_CTX_ENTRY_TX_RX_CMN_EXP_FIRST_FRAME_SHIFT;
+
+ /* Rx Write Tx Read */
+ fc_hdr = &(mp_req->req_fc_hdr);
+ if (task_type == FCOE_TASK_TYPE_MIDPATH) {
+ fc_hdr->fh_ox_id = cpu_to_be16(io_req->xid);
+ fc_hdr->fh_rx_id = htons(0xffff);
+ task->rx_wr_tx_rd.rx_id = 0xffff;
+ } else if (task_type == FCOE_TASK_TYPE_UNSOLICITED) {
+ fc_hdr->fh_rx_id = cpu_to_be16(io_req->xid);
+ }
+
+ /* Fill FC Header into middle path buffer */
+ hdr = (u64 *) &task->cmn.general.cmd_info.mp_fc_frame.fc_hdr;
+ memcpy(temp_hdr, fc_hdr, sizeof(temp_hdr));
+ hdr[0] = cpu_to_be64(temp_hdr[0]);
+ hdr[1] = cpu_to_be64(temp_hdr[1]);
+ hdr[2] = cpu_to_be64(temp_hdr[2]);
+
+ /* Rx Only */
+ if (task_type == FCOE_TASK_TYPE_MIDPATH) {
+
+ task->rx_wr_only.sgl_ctx.mul_sges.cur_sge_addr.lo =
+ (u32)mp_req->mp_resp_bd_dma;
+ task->rx_wr_only.sgl_ctx.mul_sges.cur_sge_addr.hi =
+ (u32)((u64)mp_req->mp_resp_bd_dma >> 32);
+ task->rx_wr_only.sgl_ctx.mul_sges.sgl_size = 1;
+ }
+}
+
+void bnx2fc_init_task(struct bnx2fc_cmd *io_req,
+ struct fcoe_task_ctx_entry *task)
+{
+ u8 task_type;
+ struct scsi_cmnd *sc_cmd = io_req->sc_cmd;
+ struct io_bdt *bd_tbl = io_req->bd_tbl;
+ struct bnx2fc_rport *tgt = io_req->tgt;
+ u64 *fcp_cmnd;
+ u64 tmp_fcp_cmnd[4];
+ u32 context_id;
+ int cnt, i;
+ int bd_count;
+
+ memset(task, 0, sizeof(struct fcoe_task_ctx_entry));
+
+ /* Setup the task from io_req for easy reference */
+ io_req->task = task;
+
+ if (sc_cmd->sc_data_direction == DMA_TO_DEVICE)
+ task_type = FCOE_TASK_TYPE_WRITE;
+ else
+ task_type = FCOE_TASK_TYPE_READ;
+
+ /* Tx only */
+ if (task_type == FCOE_TASK_TYPE_WRITE) {
+ task->tx_wr_only.sgl_ctx.mul_sges.cur_sge_addr.lo =
+ (u32)bd_tbl->bd_tbl_dma;
+ task->tx_wr_only.sgl_ctx.mul_sges.cur_sge_addr.hi =
+ (u32)((u64)bd_tbl->bd_tbl_dma >> 32);
+ task->tx_wr_only.sgl_ctx.mul_sges.sgl_size =
+ bd_tbl->bd_valid;
+ }
+
+ /*Tx Write Rx Read */
+ /* Init state to NORMAL */
+ task->tx_wr_rx_rd.tx_flags = FCOE_TASK_TX_STATE_NORMAL <<
+ FCOE_TASK_CTX_ENTRY_TXWR_RXRD_TX_STATE_SHIFT;
+ task->tx_wr_rx_rd.init_flags = task_type <<
+ FCOE_TASK_CTX_ENTRY_TXWR_RXRD_TASK_TYPE_SHIFT;
+ task->tx_wr_rx_rd.init_flags |= FCOE_TASK_DEV_TYPE_DISK <<
+ FCOE_TASK_CTX_ENTRY_TXWR_RXRD_DEV_TYPE_SHIFT;
+ task->tx_wr_rx_rd.init_flags |= FCOE_TASK_CLASS_TYPE_3 <<
+ FCOE_TASK_CTX_ENTRY_TXWR_RXRD_CLASS_TYPE_SHIFT;
+
+ /* Common */
+ task->cmn.data_2_trns = io_req->data_xfer_len;
+ context_id = tgt->context_id;
+ task->cmn.common_flags = context_id <<
+ FCOE_TASK_CTX_ENTRY_TX_RX_CMN_CID_SHIFT;
+ task->cmn.common_flags |= 1 <<
+ FCOE_TASK_CTX_ENTRY_TX_RX_CMN_VALID_SHIFT;
+ task->cmn.common_flags |= 1 <<
+ FCOE_TASK_CTX_ENTRY_TX_RX_CMN_EXP_FIRST_FRAME_SHIFT;
+
+ /* Set initiative ownership */
+ task->cmn.common_flags |= FCOE_TASK_CTX_ENTRY_TX_RX_CMN_SEQ_INIT;
+
+ /* Set initial seq counter */
+ task->cmn.tx_low_seq_cnt = 1;
+
+ /* Set state to "waiting for the first packet" */
+ task->cmn.common_flags |= FCOE_TASK_CTX_ENTRY_TX_RX_CMN_EXP_FIRST_FRAME;
+
+ /* Fill FCP_CMND IU */
+ fcp_cmnd = (u64 *)
+ task->cmn.general.cmd_info.fcp_cmd_payload.opaque;
+ bnx2fc_build_fcp_cmnd(io_req, (struct fcp_cmnd *)&tmp_fcp_cmnd);
+
+ /* swap fcp_cmnd */
+ cnt = sizeof(struct fcp_cmnd) / sizeof(u64);
+
+ for (i = 0; i < cnt; i++) {
+ *fcp_cmnd = cpu_to_be64(tmp_fcp_cmnd[i]);
+ fcp_cmnd++;
+ }
+
+ /* Rx Write Tx Read */
+ task->rx_wr_tx_rd.rx_id = 0xffff;
+
+ /* Rx Only */
+ if (task_type == FCOE_TASK_TYPE_READ) {
+
+ bd_count = bd_tbl->bd_valid;
+ if (bd_count == 1) {
+
+ struct fcoe_bd_ctx *fcoe_bd_tbl = bd_tbl->bd_tbl;
+
+ task->rx_wr_only.sgl_ctx.single_sge.cur_buf_addr.lo =
+ fcoe_bd_tbl->buf_addr_lo;
+ task->rx_wr_only.sgl_ctx.single_sge.cur_buf_addr.hi =
+ fcoe_bd_tbl->buf_addr_hi;
+ task->rx_wr_only.sgl_ctx.single_sge.cur_buf_rem =
+ fcoe_bd_tbl->buf_len;
+ task->tx_wr_rx_rd.init_flags |= 1 <<
+ FCOE_TASK_CTX_ENTRY_TXWR_RXRD_SINGLE_SGE_SHIFT;
+ } else {
+
+ task->rx_wr_only.sgl_ctx.mul_sges.cur_sge_addr.lo =
+ (u32)bd_tbl->bd_tbl_dma;
+ task->rx_wr_only.sgl_ctx.mul_sges.cur_sge_addr.hi =
+ (u32)((u64)bd_tbl->bd_tbl_dma >> 32);
+ task->rx_wr_only.sgl_ctx.mul_sges.sgl_size =
+ bd_tbl->bd_valid;
+ }
+ }
+}
+
+/**
+ * bnx2fc_setup_task_ctx - allocate and map task context
+ *
+ * @hba: pointer to adapter structure
+ *
+ * allocate memory for task context, and associated BD table to be used
+ * by firmware
+ *
+ */
+int bnx2fc_setup_task_ctx(struct bnx2fc_hba *hba)
+{
+ int rc = 0;
+ struct regpair *task_ctx_bdt;
+ dma_addr_t addr;
+ int i;
+
+ /*
+ * Allocate task context bd table. A page size of bd table
+ * can map 256 buffers. Each buffer contains 32 task context
+ * entries. Hence the limit with one page is 8192 task context
+ * entries.
+ */
+ hba->task_ctx_bd_tbl = dma_alloc_coherent(&hba->pcidev->dev,
+ PAGE_SIZE,
+ &hba->task_ctx_bd_dma,
+ GFP_KERNEL);
+ if (!hba->task_ctx_bd_tbl) {
+ printk(KERN_ERR PFX "unable to allocate task context BDT\n");
+ rc = -1;
+ goto out;
+ }
+ memset(hba->task_ctx_bd_tbl, 0, PAGE_SIZE);
+
+ /*
+ * Allocate task_ctx which is an array of pointers pointing to
+ * a page containing 32 task contexts
+ */
+ hba->task_ctx = kzalloc((BNX2FC_TASK_CTX_ARR_SZ * sizeof(void *)),
+ GFP_KERNEL);
+ if (!hba->task_ctx) {
+ printk(KERN_ERR PFX "unable to allocate task context array\n");
+ rc = -1;
+ goto out1;
+ }
+
+ /*
+ * Allocate task_ctx_dma which is an array of dma addresses
+ */
+ hba->task_ctx_dma = kmalloc((BNX2FC_TASK_CTX_ARR_SZ *
+ sizeof(dma_addr_t)), GFP_KERNEL);
+ if (!hba->task_ctx_dma) {
+ printk(KERN_ERR PFX "unable to alloc context mapping array\n");
+ rc = -1;
+ goto out2;
+ }
+
+ task_ctx_bdt = (struct regpair *)hba->task_ctx_bd_tbl;
+ for (i = 0; i < BNX2FC_TASK_CTX_ARR_SZ; i++) {
+
+ hba->task_ctx[i] = dma_alloc_coherent(&hba->pcidev->dev,
+ PAGE_SIZE,
+ &hba->task_ctx_dma[i],
+ GFP_KERNEL);
+ if (!hba->task_ctx[i]) {
+ printk(KERN_ERR PFX "unable to alloc task context\n");
+ rc = -1;
+ goto out3;
+ }
+ memset(hba->task_ctx[i], 0, PAGE_SIZE);
+ addr = (u64)hba->task_ctx_dma[i];
+ task_ctx_bdt->hi = cpu_to_le32((u64)addr >> 32);
+ task_ctx_bdt->lo = cpu_to_le32((u32)addr);
+ task_ctx_bdt++;
+ }
+ return 0;
+
+out3:
+ for (i = 0; i < BNX2FC_TASK_CTX_ARR_SZ; i++) {
+ if (hba->task_ctx[i]) {
+
+ dma_free_coherent(&hba->pcidev->dev, PAGE_SIZE,
+ hba->task_ctx[i], hba->task_ctx_dma[i]);
+ hba->task_ctx[i] = NULL;
+ }
+ }
+
+ kfree(hba->task_ctx_dma);
+ hba->task_ctx_dma = NULL;
+out2:
+ kfree(hba->task_ctx);
+ hba->task_ctx = NULL;
+out1:
+ dma_free_coherent(&hba->pcidev->dev, PAGE_SIZE,
+ hba->task_ctx_bd_tbl, hba->task_ctx_bd_dma);
+ hba->task_ctx_bd_tbl = NULL;
+out:
+ return rc;
+}
+
+void bnx2fc_free_task_ctx(struct bnx2fc_hba *hba)
+{
+ int i;
+
+ if (hba->task_ctx_bd_tbl) {
+ dma_free_coherent(&hba->pcidev->dev, PAGE_SIZE,
+ hba->task_ctx_bd_tbl,
+ hba->task_ctx_bd_dma);
+ hba->task_ctx_bd_tbl = NULL;
+ }
+
+ if (hba->task_ctx) {
+ for (i = 0; i < BNX2FC_TASK_CTX_ARR_SZ; i++) {
+ if (hba->task_ctx[i]) {
+ dma_free_coherent(&hba->pcidev->dev, PAGE_SIZE,
+ hba->task_ctx[i],
+ hba->task_ctx_dma[i]);
+ hba->task_ctx[i] = NULL;
+ }
+ }
+ kfree(hba->task_ctx);
+ hba->task_ctx = NULL;
+ }
+
+ kfree(hba->task_ctx_dma);
+ hba->task_ctx_dma = NULL;
+}
+
+static void bnx2fc_free_hash_table(struct bnx2fc_hba *hba)
+{
+ int i;
+ int segment_count;
+ int hash_table_size;
+ u32 *pbl;
+
+ segment_count = hba->hash_tbl_segment_count;
+ hash_table_size = BNX2FC_NUM_MAX_SESS * BNX2FC_MAX_ROWS_IN_HASH_TBL *
+ sizeof(struct fcoe_hash_table_entry);
+
+ pbl = hba->hash_tbl_pbl;
+ for (i = 0; i < segment_count; ++i) {
+ dma_addr_t dma_address;
+
+ dma_address = le32_to_cpu(*pbl);
+ ++pbl;
+ dma_address += ((u64)le32_to_cpu(*pbl)) << 32;
+ ++pbl;
+ dma_free_coherent(&hba->pcidev->dev,
+ BNX2FC_HASH_TBL_CHUNK_SIZE,
+ hba->hash_tbl_segments[i],
+ dma_address);
+
+ }
+
+ if (hba->hash_tbl_pbl) {
+ dma_free_coherent(&hba->pcidev->dev, PAGE_SIZE,
+ hba->hash_tbl_pbl,
+ hba->hash_tbl_pbl_dma);
+ hba->hash_tbl_pbl = NULL;
+ }
+}
+
+static int bnx2fc_allocate_hash_table(struct bnx2fc_hba *hba)
+{
+ int i;
+ int hash_table_size;
+ int segment_count;
+ int segment_array_size;
+ int dma_segment_array_size;
+ dma_addr_t *dma_segment_array;
+ u32 *pbl;
+
+ hash_table_size = BNX2FC_NUM_MAX_SESS * BNX2FC_MAX_ROWS_IN_HASH_TBL *
+ sizeof(struct fcoe_hash_table_entry);
+
+ segment_count = hash_table_size + BNX2FC_HASH_TBL_CHUNK_SIZE - 1;
+ segment_count /= BNX2FC_HASH_TBL_CHUNK_SIZE;
+ hba->hash_tbl_segment_count = segment_count;
+
+ segment_array_size = segment_count * sizeof(*hba->hash_tbl_segments);
+ hba->hash_tbl_segments = kzalloc(segment_array_size, GFP_KERNEL);
+ if (!hba->hash_tbl_segments) {
+ printk(KERN_ERR PFX "hash table pointers alloc failed\n");
+ return -ENOMEM;
+ }
+ dma_segment_array_size = segment_count * sizeof(*dma_segment_array);
+ dma_segment_array = kzalloc(dma_segment_array_size, GFP_KERNEL);
+ if (!dma_segment_array) {
+ printk(KERN_ERR PFX "hash table pointers (dma) alloc failed\n");
+ return -ENOMEM;
+ }
+
+ for (i = 0; i < segment_count; ++i) {
+ hba->hash_tbl_segments[i] =
+ dma_alloc_coherent(&hba->pcidev->dev,
+ BNX2FC_HASH_TBL_CHUNK_SIZE,
+ &dma_segment_array[i],
+ GFP_KERNEL);
+ if (!hba->hash_tbl_segments[i]) {
+ printk(KERN_ERR PFX "hash segment alloc failed\n");
+ while (--i >= 0) {
+ dma_free_coherent(&hba->pcidev->dev,
+ BNX2FC_HASH_TBL_CHUNK_SIZE,
+ hba->hash_tbl_segments[i],
+ dma_segment_array[i]);
+ hba->hash_tbl_segments[i] = NULL;
+ }
+ kfree(dma_segment_array);
+ return -ENOMEM;
+ }
+ memset(hba->hash_tbl_segments[i], 0,
+ BNX2FC_HASH_TBL_CHUNK_SIZE);
+ }
+
+ hba->hash_tbl_pbl = dma_alloc_coherent(&hba->pcidev->dev,
+ PAGE_SIZE,
+ &hba->hash_tbl_pbl_dma,
+ GFP_KERNEL);
+ if (!hba->hash_tbl_pbl) {
+ printk(KERN_ERR PFX "hash table pbl alloc failed\n");
+ kfree(dma_segment_array);
+ return -ENOMEM;
+ }
+ memset(hba->hash_tbl_pbl, 0, PAGE_SIZE);
+
+ pbl = hba->hash_tbl_pbl;
+ for (i = 0; i < segment_count; ++i) {
+ u64 paddr = dma_segment_array[i];
+ *pbl = cpu_to_le32((u32) paddr);
+ ++pbl;
+ *pbl = cpu_to_le32((u32) (paddr >> 32));
+ ++pbl;
+ }
+ pbl = hba->hash_tbl_pbl;
+ i = 0;
+ while (*pbl && *(pbl + 1)) {
+ u32 lo;
+ u32 hi;
+ lo = *pbl;
+ ++pbl;
+ hi = *pbl;
+ ++pbl;
+ ++i;
+ }
+ kfree(dma_segment_array);
+ return 0;
+}
+
+/**
+ * bnx2fc_setup_fw_resc - Allocate and map hash table and dummy buffer
+ *
+ * @hba: Pointer to adapter structure
+ *
+ */
+int bnx2fc_setup_fw_resc(struct bnx2fc_hba *hba)
+{
+ u64 addr;
+ u32 mem_size;
+ int i;
+
+ if (bnx2fc_allocate_hash_table(hba))
+ return -ENOMEM;
+
+ mem_size = BNX2FC_NUM_MAX_SESS * sizeof(struct regpair);
+ hba->t2_hash_tbl_ptr = dma_alloc_coherent(&hba->pcidev->dev, mem_size,
+ &hba->t2_hash_tbl_ptr_dma,
+ GFP_KERNEL);
+ if (!hba->t2_hash_tbl_ptr) {
+ printk(KERN_ERR PFX "unable to allocate t2 hash table ptr\n");
+ bnx2fc_free_fw_resc(hba);
+ return -ENOMEM;
+ }
+ memset(hba->t2_hash_tbl_ptr, 0x00, mem_size);
+
+ mem_size = BNX2FC_NUM_MAX_SESS *
+ sizeof(struct fcoe_t2_hash_table_entry);
+ hba->t2_hash_tbl = dma_alloc_coherent(&hba->pcidev->dev, mem_size,
+ &hba->t2_hash_tbl_dma,
+ GFP_KERNEL);
+ if (!hba->t2_hash_tbl) {
+ printk(KERN_ERR PFX "unable to allocate t2 hash table\n");
+ bnx2fc_free_fw_resc(hba);
+ return -ENOMEM;
+ }
+ memset(hba->t2_hash_tbl, 0x00, mem_size);
+ for (i = 0; i < BNX2FC_NUM_MAX_SESS; i++) {
+ addr = (unsigned long) hba->t2_hash_tbl_dma +
+ ((i+1) * sizeof(struct fcoe_t2_hash_table_entry));
+ hba->t2_hash_tbl[i].next.lo = addr & 0xffffffff;
+ hba->t2_hash_tbl[i].next.hi = addr >> 32;
+ }
+
+ hba->dummy_buffer = dma_alloc_coherent(&hba->pcidev->dev,
+ PAGE_SIZE, &hba->dummy_buf_dma,
+ GFP_KERNEL);
+ if (!hba->dummy_buffer) {
+ printk(KERN_ERR PFX "unable to alloc MP Dummy Buffer\n");
+ bnx2fc_free_fw_resc(hba);
+ return -ENOMEM;
+ }
+
+ hba->stats_buffer = dma_alloc_coherent(&hba->pcidev->dev,
+ PAGE_SIZE,
+ &hba->stats_buf_dma,
+ GFP_KERNEL);
+ if (!hba->stats_buffer) {
+ printk(KERN_ERR PFX "unable to alloc Stats Buffer\n");
+ bnx2fc_free_fw_resc(hba);
+ return -ENOMEM;
+ }
+ memset(hba->stats_buffer, 0x00, PAGE_SIZE);
+
+ return 0;
+}
+
+void bnx2fc_free_fw_resc(struct bnx2fc_hba *hba)
+{
+ u32 mem_size;
+
+ if (hba->stats_buffer) {
+ dma_free_coherent(&hba->pcidev->dev, PAGE_SIZE,
+ hba->stats_buffer, hba->stats_buf_dma);
+ hba->stats_buffer = NULL;
+ }
+
+ if (hba->dummy_buffer) {
+ dma_free_coherent(&hba->pcidev->dev, PAGE_SIZE,
+ hba->dummy_buffer, hba->dummy_buf_dma);
+ hba->dummy_buffer = NULL;
+ }
+
+ if (hba->t2_hash_tbl_ptr) {
+ mem_size = BNX2FC_NUM_MAX_SESS * sizeof(struct regpair);
+ dma_free_coherent(&hba->pcidev->dev, mem_size,
+ hba->t2_hash_tbl_ptr,
+ hba->t2_hash_tbl_ptr_dma);
+ hba->t2_hash_tbl_ptr = NULL;
+ }
+
+ if (hba->t2_hash_tbl) {
+ mem_size = BNX2FC_NUM_MAX_SESS *
+ sizeof(struct fcoe_t2_hash_table_entry);
+ dma_free_coherent(&hba->pcidev->dev, mem_size,
+ hba->t2_hash_tbl, hba->t2_hash_tbl_dma);
+ hba->t2_hash_tbl = NULL;
+ }
+ bnx2fc_free_hash_table(hba);
+}
--- /dev/null
+/* bnx2fc_io.c: Broadcom NetXtreme II Linux FCoE offload driver.
+ * IO manager and SCSI IO processing.
+ *
+ * Copyright (c) 2008 - 2010 Broadcom Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation.
+ *
+ * Written by: Bhanu Prakash Gollapudi (bprakash@broadcom.com)
+ */
+
+#include "bnx2fc.h"
+static int bnx2fc_split_bd(struct bnx2fc_cmd *io_req, u64 addr, int sg_len,
+ int bd_index);
+static int bnx2fc_map_sg(struct bnx2fc_cmd *io_req);
+static void bnx2fc_build_bd_list_from_sg(struct bnx2fc_cmd *io_req);
+static int bnx2fc_post_io_req(struct bnx2fc_rport *tgt,
+ struct bnx2fc_cmd *io_req);
+static void bnx2fc_unmap_sg_list(struct bnx2fc_cmd *io_req);
+static void bnx2fc_free_mp_resc(struct bnx2fc_cmd *io_req);
+static void bnx2fc_parse_fcp_rsp(struct bnx2fc_cmd *io_req,
+ struct fcoe_fcp_rsp_payload *fcp_rsp,
+ u8 num_rq);
+
+void bnx2fc_cmd_timer_set(struct bnx2fc_cmd *io_req,
+ unsigned int timer_msec)
+{
+ struct bnx2fc_hba *hba = io_req->port->priv;
+
+ if (queue_delayed_work(hba->timer_work_queue, &io_req->timeout_work,
+ msecs_to_jiffies(timer_msec)))
+ kref_get(&io_req->refcount);
+}
+
+static void bnx2fc_cmd_timeout(struct work_struct *work)
+{
+ struct bnx2fc_cmd *io_req = container_of(work, struct bnx2fc_cmd,
+ timeout_work.work);
+ struct fc_lport *lport;
+ struct fc_rport_priv *rdata;
+ u8 cmd_type = io_req->cmd_type;
+ struct bnx2fc_rport *tgt = io_req->tgt;
+ int logo_issued;
+ int rc;
+
+ BNX2FC_IO_DBG(io_req, "cmd_timeout, cmd_type = %d,"
+ "req_flags = %lx\n", cmd_type, io_req->req_flags);
+
+ spin_lock_bh(&tgt->tgt_lock);
+ if (test_and_clear_bit(BNX2FC_FLAG_ISSUE_RRQ, &io_req->req_flags)) {
+ clear_bit(BNX2FC_FLAG_RETIRE_OXID, &io_req->req_flags);
+ /*
+ * ideally we should hold the io_req until RRQ complets,
+ * and release io_req from timeout hold.
+ */
+ spin_unlock_bh(&tgt->tgt_lock);
+ bnx2fc_send_rrq(io_req);
+ return;
+ }
+ if (test_and_clear_bit(BNX2FC_FLAG_RETIRE_OXID, &io_req->req_flags)) {
+ BNX2FC_IO_DBG(io_req, "IO ready for reuse now\n");
+ goto done;
+ }
+
+ switch (cmd_type) {
+ case BNX2FC_SCSI_CMD:
+ if (test_and_clear_bit(BNX2FC_FLAG_EH_ABORT,
+ &io_req->req_flags)) {
+ /* Handle eh_abort timeout */
+ BNX2FC_IO_DBG(io_req, "eh_abort timed out\n");
+ complete(&io_req->tm_done);
+ } else if (test_bit(BNX2FC_FLAG_ISSUE_ABTS,
+ &io_req->req_flags)) {
+ /* Handle internally generated ABTS timeout */
+ BNX2FC_IO_DBG(io_req, "ABTS timed out refcnt = %d\n",
+ io_req->refcount.refcount.counter);
+ if (!(test_and_set_bit(BNX2FC_FLAG_ABTS_DONE,
+ &io_req->req_flags))) {
+
+ lport = io_req->port->lport;
+ rdata = io_req->tgt->rdata;
+ logo_issued = test_and_set_bit(
+ BNX2FC_FLAG_EXPL_LOGO,
+ &tgt->flags);
+ kref_put(&io_req->refcount, bnx2fc_cmd_release);
+ spin_unlock_bh(&tgt->tgt_lock);
+
+ /* Explicitly logo the target */
+ if (!logo_issued) {
+ BNX2FC_IO_DBG(io_req, "Explicit "
+ "logo - tgt flags = 0x%lx\n",
+ tgt->flags);
+
+ mutex_lock(&lport->disc.disc_mutex);
+ lport->tt.rport_logoff(rdata);
+ mutex_unlock(&lport->disc.disc_mutex);
+ }
+ return;
+ }
+ } else {
+ /* Hanlde IO timeout */
+ BNX2FC_IO_DBG(io_req, "IO timed out. issue ABTS\n");
+ if (test_and_set_bit(BNX2FC_FLAG_IO_COMPL,
+ &io_req->req_flags)) {
+ BNX2FC_IO_DBG(io_req, "IO completed before "
+ " timer expiry\n");
+ goto done;
+ }
+
+ if (!test_and_set_bit(BNX2FC_FLAG_ISSUE_ABTS,
+ &io_req->req_flags)) {
+ rc = bnx2fc_initiate_abts(io_req);
+ if (rc == SUCCESS)
+ goto done;
+ /*
+ * Explicitly logo the target if
+ * abts initiation fails
+ */
+ lport = io_req->port->lport;
+ rdata = io_req->tgt->rdata;
+ logo_issued = test_and_set_bit(
+ BNX2FC_FLAG_EXPL_LOGO,
+ &tgt->flags);
+ kref_put(&io_req->refcount, bnx2fc_cmd_release);
+ spin_unlock_bh(&tgt->tgt_lock);
+
+ if (!logo_issued) {
+ BNX2FC_IO_DBG(io_req, "Explicit "
+ "logo - tgt flags = 0x%lx\n",
+ tgt->flags);
+
+
+ mutex_lock(&lport->disc.disc_mutex);
+ lport->tt.rport_logoff(rdata);
+ mutex_unlock(&lport->disc.disc_mutex);
+ }
+ return;
+ } else {
+ BNX2FC_IO_DBG(io_req, "IO already in "
+ "ABTS processing\n");
+ }
+ }
+ break;
+ case BNX2FC_ELS:
+
+ if (test_bit(BNX2FC_FLAG_ISSUE_ABTS, &io_req->req_flags)) {
+ BNX2FC_IO_DBG(io_req, "ABTS for ELS timed out\n");
+
+ if (!test_and_set_bit(BNX2FC_FLAG_ABTS_DONE,
+ &io_req->req_flags)) {
+ lport = io_req->port->lport;
+ rdata = io_req->tgt->rdata;
+ logo_issued = test_and_set_bit(
+ BNX2FC_FLAG_EXPL_LOGO,
+ &tgt->flags);
+ kref_put(&io_req->refcount, bnx2fc_cmd_release);
+ spin_unlock_bh(&tgt->tgt_lock);
+
+ /* Explicitly logo the target */
+ if (!logo_issued) {
+ BNX2FC_IO_DBG(io_req, "Explicitly logo"
+ "(els)\n");
+ mutex_lock(&lport->disc.disc_mutex);
+ lport->tt.rport_logoff(rdata);
+ mutex_unlock(&lport->disc.disc_mutex);
+ }
+ return;
+ }
+ } else {
+ /*
+ * Handle ELS timeout.
+ * tgt_lock is used to sync compl path and timeout
+ * path. If els compl path is processing this IO, we
+ * have nothing to do here, just release the timer hold
+ */
+ BNX2FC_IO_DBG(io_req, "ELS timed out\n");
+ if (test_and_set_bit(BNX2FC_FLAG_ELS_DONE,
+ &io_req->req_flags))
+ goto done;
+
+ /* Indicate the cb_func that this ELS is timed out */
+ set_bit(BNX2FC_FLAG_ELS_TIMEOUT, &io_req->req_flags);
+
+ if ((io_req->cb_func) && (io_req->cb_arg)) {
+ io_req->cb_func(io_req->cb_arg);
+ io_req->cb_arg = NULL;
+ }
+ }
+ break;
+ default:
+ printk(KERN_ERR PFX "cmd_timeout: invalid cmd_type %d\n",
+ cmd_type);
+ break;
+ }
+
+done:
+ /* release the cmd that was held when timer was set */
+ kref_put(&io_req->refcount, bnx2fc_cmd_release);
+ spin_unlock_bh(&tgt->tgt_lock);
+}
+
+static void bnx2fc_scsi_done(struct bnx2fc_cmd *io_req, int err_code)
+{
+ /* Called with host lock held */
+ struct scsi_cmnd *sc_cmd = io_req->sc_cmd;
+
+ /*
+ * active_cmd_queue may have other command types as well,
+ * and during flush operation, we want to error back only
+ * scsi commands.
+ */
+ if (io_req->cmd_type != BNX2FC_SCSI_CMD)
+ return;
+
+ BNX2FC_IO_DBG(io_req, "scsi_done. err_code = 0x%x\n", err_code);
+ bnx2fc_unmap_sg_list(io_req);
+ io_req->sc_cmd = NULL;
+ if (!sc_cmd) {
+ printk(KERN_ERR PFX "scsi_done - sc_cmd NULL. "
+ "IO(0x%x) already cleaned up\n",
+ io_req->xid);
+ return;
+ }
+ sc_cmd->result = err_code << 16;
+
+ BNX2FC_IO_DBG(io_req, "sc=%p, result=0x%x, retries=%d, allowed=%d\n",
+ sc_cmd, host_byte(sc_cmd->result), sc_cmd->retries,
+ sc_cmd->allowed);
+ scsi_set_resid(sc_cmd, scsi_bufflen(sc_cmd));
+ sc_cmd->SCp.ptr = NULL;
+ sc_cmd->scsi_done(sc_cmd);
+}
+
+struct bnx2fc_cmd_mgr *bnx2fc_cmd_mgr_alloc(struct bnx2fc_hba *hba,
+ u16 min_xid, u16 max_xid)
+{
+ struct bnx2fc_cmd_mgr *cmgr;
+ struct io_bdt *bdt_info;
+ struct bnx2fc_cmd *io_req;
+ size_t len;
+ u32 mem_size;
+ u16 xid;
+ int i;
+ int num_ios;
+ size_t bd_tbl_sz;
+
+ if (max_xid <= min_xid || max_xid == FC_XID_UNKNOWN) {
+ printk(KERN_ERR PFX "cmd_mgr_alloc: Invalid min_xid 0x%x \
+ and max_xid 0x%x\n", min_xid, max_xid);
+ return NULL;
+ }
+ BNX2FC_MISC_DBG("min xid 0x%x, max xid 0x%x\n", min_xid, max_xid);
+
+ num_ios = max_xid - min_xid + 1;
+ len = (num_ios * (sizeof(struct bnx2fc_cmd *)));
+ len += sizeof(struct bnx2fc_cmd_mgr);
+
+ cmgr = kzalloc(len, GFP_KERNEL);
+ if (!cmgr) {
+ printk(KERN_ERR PFX "failed to alloc cmgr\n");
+ return NULL;
+ }
+
+ cmgr->free_list = kzalloc(sizeof(*cmgr->free_list) *
+ num_possible_cpus(), GFP_KERNEL);
+ if (!cmgr->free_list) {
+ printk(KERN_ERR PFX "failed to alloc free_list\n");
+ goto mem_err;
+ }
+
+ cmgr->free_list_lock = kzalloc(sizeof(*cmgr->free_list_lock) *
+ num_possible_cpus(), GFP_KERNEL);
+ if (!cmgr->free_list_lock) {
+ printk(KERN_ERR PFX "failed to alloc free_list_lock\n");
+ goto mem_err;
+ }
+
+ cmgr->hba = hba;
+ cmgr->cmds = (struct bnx2fc_cmd **)(cmgr + 1);
+
+ for (i = 0; i < num_possible_cpus(); i++) {
+ INIT_LIST_HEAD(&cmgr->free_list[i]);
+ spin_lock_init(&cmgr->free_list_lock[i]);
+ }
+
+ /* Pre-allocated pool of bnx2fc_cmds */
+ xid = BNX2FC_MIN_XID;
+ for (i = 0; i < num_ios; i++) {
+ io_req = kzalloc(sizeof(*io_req), GFP_KERNEL);
+
+ if (!io_req) {
+ printk(KERN_ERR PFX "failed to alloc io_req\n");
+ goto mem_err;
+ }
+
+ INIT_LIST_HEAD(&io_req->link);
+ INIT_DELAYED_WORK(&io_req->timeout_work, bnx2fc_cmd_timeout);
+
+ io_req->xid = xid++;
+ if (io_req->xid >= BNX2FC_MAX_OUTSTANDING_CMNDS)
+ printk(KERN_ERR PFX "ERROR allocating xids - 0x%x\n",
+ io_req->xid);
+ list_add_tail(&io_req->link,
+ &cmgr->free_list[io_req->xid % num_possible_cpus()]);
+ io_req++;
+ }
+
+ /* Allocate pool of io_bdts - one for each bnx2fc_cmd */
+ mem_size = num_ios * sizeof(struct io_bdt *);
+ cmgr->io_bdt_pool = kmalloc(mem_size, GFP_KERNEL);
+ if (!cmgr->io_bdt_pool) {
+ printk(KERN_ERR PFX "failed to alloc io_bdt_pool\n");
+ goto mem_err;
+ }
+
+ mem_size = sizeof(struct io_bdt);
+ for (i = 0; i < num_ios; i++) {
+ cmgr->io_bdt_pool[i] = kmalloc(mem_size, GFP_KERNEL);
+ if (!cmgr->io_bdt_pool[i]) {
+ printk(KERN_ERR PFX "failed to alloc "
+ "io_bdt_pool[%d]\n", i);
+ goto mem_err;
+ }
+ }
+
+ /* Allocate an map fcoe_bdt_ctx structures */
+ bd_tbl_sz = BNX2FC_MAX_BDS_PER_CMD * sizeof(struct fcoe_bd_ctx);
+ for (i = 0; i < num_ios; i++) {
+ bdt_info = cmgr->io_bdt_pool[i];
+ bdt_info->bd_tbl = dma_alloc_coherent(&hba->pcidev->dev,
+ bd_tbl_sz,
+ &bdt_info->bd_tbl_dma,
+ GFP_KERNEL);
+ if (!bdt_info->bd_tbl) {
+ printk(KERN_ERR PFX "failed to alloc "
+ "bdt_tbl[%d]\n", i);
+ goto mem_err;
+ }
+ }
+
+ return cmgr;
+
+mem_err:
+ bnx2fc_cmd_mgr_free(cmgr);
+ return NULL;
+}
+
+void bnx2fc_cmd_mgr_free(struct bnx2fc_cmd_mgr *cmgr)
+{
+ struct io_bdt *bdt_info;
+ struct bnx2fc_hba *hba = cmgr->hba;
+ size_t bd_tbl_sz;
+ u16 min_xid = BNX2FC_MIN_XID;
+ u16 max_xid = BNX2FC_MAX_XID;
+ int num_ios;
+ int i;
+
+ num_ios = max_xid - min_xid + 1;
+
+ /* Free fcoe_bdt_ctx structures */
+ if (!cmgr->io_bdt_pool)
+ goto free_cmd_pool;
+
+ bd_tbl_sz = BNX2FC_MAX_BDS_PER_CMD * sizeof(struct fcoe_bd_ctx);
+ for (i = 0; i < num_ios; i++) {
+ bdt_info = cmgr->io_bdt_pool[i];
+ if (bdt_info->bd_tbl) {
+ dma_free_coherent(&hba->pcidev->dev, bd_tbl_sz,
+ bdt_info->bd_tbl,
+ bdt_info->bd_tbl_dma);
+ bdt_info->bd_tbl = NULL;
+ }
+ }
+
+ /* Destroy io_bdt pool */
+ for (i = 0; i < num_ios; i++) {
+ kfree(cmgr->io_bdt_pool[i]);
+ cmgr->io_bdt_pool[i] = NULL;
+ }
+
+ kfree(cmgr->io_bdt_pool);
+ cmgr->io_bdt_pool = NULL;
+
+free_cmd_pool:
+ kfree(cmgr->free_list_lock);
+
+ /* Destroy cmd pool */
+ if (!cmgr->free_list)
+ goto free_cmgr;
+
+ for (i = 0; i < num_possible_cpus(); i++) {
+ struct list_head *list;
+ struct list_head *tmp;
+
+ list_for_each_safe(list, tmp, &cmgr->free_list[i]) {
+ struct bnx2fc_cmd *io_req = (struct bnx2fc_cmd *)list;
+ list_del(&io_req->link);
+ kfree(io_req);
+ }
+ }
+ kfree(cmgr->free_list);
+free_cmgr:
+ /* Free command manager itself */
+ kfree(cmgr);
+}
+
+struct bnx2fc_cmd *bnx2fc_elstm_alloc(struct bnx2fc_rport *tgt, int type)
+{
+ struct fcoe_port *port = tgt->port;
+ struct bnx2fc_hba *hba = port->priv;
+ struct bnx2fc_cmd_mgr *cmd_mgr = hba->cmd_mgr;
+ struct bnx2fc_cmd *io_req;
+ struct list_head *listp;
+ struct io_bdt *bd_tbl;
+ u32 max_sqes;
+ u16 xid;
+
+ max_sqes = tgt->max_sqes;
+ switch (type) {
+ case BNX2FC_TASK_MGMT_CMD:
+ max_sqes = BNX2FC_TM_MAX_SQES;
+ break;
+ case BNX2FC_ELS:
+ max_sqes = BNX2FC_ELS_MAX_SQES;
+ break;
+ default:
+ break;
+ }
+
+ /*
+ * NOTE: Free list insertions and deletions are protected with
+ * cmgr lock
+ */
+ spin_lock_bh(&cmd_mgr->free_list_lock[smp_processor_id()]);
+ if ((list_empty(&(cmd_mgr->free_list[smp_processor_id()]))) ||
+ (tgt->num_active_ios.counter >= max_sqes)) {
+ BNX2FC_TGT_DBG(tgt, "No free els_tm cmds available "
+ "ios(%d):sqes(%d)\n",
+ tgt->num_active_ios.counter, tgt->max_sqes);
+ if (list_empty(&(cmd_mgr->free_list[smp_processor_id()])))
+ printk(KERN_ERR PFX "elstm_alloc: list_empty\n");
+ spin_unlock_bh(&cmd_mgr->free_list_lock[smp_processor_id()]);
+ return NULL;
+ }
+
+ listp = (struct list_head *)
+ cmd_mgr->free_list[smp_processor_id()].next;
+ list_del_init(listp);
+ io_req = (struct bnx2fc_cmd *) listp;
+ xid = io_req->xid;
+ cmd_mgr->cmds[xid] = io_req;
+ atomic_inc(&tgt->num_active_ios);
+ spin_unlock_bh(&cmd_mgr->free_list_lock[smp_processor_id()]);
+
+ INIT_LIST_HEAD(&io_req->link);
+
+ io_req->port = port;
+ io_req->cmd_mgr = cmd_mgr;
+ io_req->req_flags = 0;
+ io_req->cmd_type = type;
+
+ /* Bind io_bdt for this io_req */
+ /* Have a static link between io_req and io_bdt_pool */
+ bd_tbl = io_req->bd_tbl = cmd_mgr->io_bdt_pool[xid];
+ bd_tbl->io_req = io_req;
+
+ /* Hold the io_req against deletion */
+ kref_init(&io_req->refcount);
+ return io_req;
+}
+static struct bnx2fc_cmd *bnx2fc_cmd_alloc(struct bnx2fc_rport *tgt)
+{
+ struct fcoe_port *port = tgt->port;
+ struct bnx2fc_hba *hba = port->priv;
+ struct bnx2fc_cmd_mgr *cmd_mgr = hba->cmd_mgr;
+ struct bnx2fc_cmd *io_req;
+ struct list_head *listp;
+ struct io_bdt *bd_tbl;
+ u32 max_sqes;
+ u16 xid;
+
+ max_sqes = BNX2FC_SCSI_MAX_SQES;
+ /*
+ * NOTE: Free list insertions and deletions are protected with
+ * cmgr lock
+ */
+ spin_lock_bh(&cmd_mgr->free_list_lock[smp_processor_id()]);
+ if ((list_empty(&cmd_mgr->free_list[smp_processor_id()])) ||
+ (tgt->num_active_ios.counter >= max_sqes)) {
+ spin_unlock_bh(&cmd_mgr->free_list_lock[smp_processor_id()]);
+ return NULL;
+ }
+
+ listp = (struct list_head *)
+ cmd_mgr->free_list[smp_processor_id()].next;
+ list_del_init(listp);
+ io_req = (struct bnx2fc_cmd *) listp;
+ xid = io_req->xid;
+ cmd_mgr->cmds[xid] = io_req;
+ atomic_inc(&tgt->num_active_ios);
+ spin_unlock_bh(&cmd_mgr->free_list_lock[smp_processor_id()]);
+
+ INIT_LIST_HEAD(&io_req->link);
+
+ io_req->port = port;
+ io_req->cmd_mgr = cmd_mgr;
+ io_req->req_flags = 0;
+
+ /* Bind io_bdt for this io_req */
+ /* Have a static link between io_req and io_bdt_pool */
+ bd_tbl = io_req->bd_tbl = cmd_mgr->io_bdt_pool[xid];
+ bd_tbl->io_req = io_req;
+
+ /* Hold the io_req against deletion */
+ kref_init(&io_req->refcount);
+ return io_req;
+}
+
+void bnx2fc_cmd_release(struct kref *ref)
+{
+ struct bnx2fc_cmd *io_req = container_of(ref,
+ struct bnx2fc_cmd, refcount);
+ struct bnx2fc_cmd_mgr *cmd_mgr = io_req->cmd_mgr;
+
+ spin_lock_bh(&cmd_mgr->free_list_lock[smp_processor_id()]);
+ if (io_req->cmd_type != BNX2FC_SCSI_CMD)
+ bnx2fc_free_mp_resc(io_req);
+ cmd_mgr->cmds[io_req->xid] = NULL;
+ /* Delete IO from retire queue */
+ list_del_init(&io_req->link);
+ /* Add it to the free list */
+ list_add(&io_req->link,
+ &cmd_mgr->free_list[smp_processor_id()]);
+ atomic_dec(&io_req->tgt->num_active_ios);
+ spin_unlock_bh(&cmd_mgr->free_list_lock[smp_processor_id()]);
+}
+
+static void bnx2fc_free_mp_resc(struct bnx2fc_cmd *io_req)
+{
+ struct bnx2fc_mp_req *mp_req = &(io_req->mp_req);
+ struct bnx2fc_hba *hba = io_req->port->priv;
+ size_t sz = sizeof(struct fcoe_bd_ctx);
+
+ /* clear tm flags */
+ mp_req->tm_flags = 0;
+ if (mp_req->mp_req_bd) {
+ dma_free_coherent(&hba->pcidev->dev, sz,
+ mp_req->mp_req_bd,
+ mp_req->mp_req_bd_dma);
+ mp_req->mp_req_bd = NULL;
+ }
+ if (mp_req->mp_resp_bd) {
+ dma_free_coherent(&hba->pcidev->dev, sz,
+ mp_req->mp_resp_bd,
+ mp_req->mp_resp_bd_dma);
+ mp_req->mp_resp_bd = NULL;
+ }
+ if (mp_req->req_buf) {
+ dma_free_coherent(&hba->pcidev->dev, PAGE_SIZE,
+ mp_req->req_buf,
+ mp_req->req_buf_dma);
+ mp_req->req_buf = NULL;
+ }
+ if (mp_req->resp_buf) {
+ dma_free_coherent(&hba->pcidev->dev, PAGE_SIZE,
+ mp_req->resp_buf,
+ mp_req->resp_buf_dma);
+ mp_req->resp_buf = NULL;
+ }
+}
+
+int bnx2fc_init_mp_req(struct bnx2fc_cmd *io_req)
+{
+ struct bnx2fc_mp_req *mp_req;
+ struct fcoe_bd_ctx *mp_req_bd;
+ struct fcoe_bd_ctx *mp_resp_bd;
+ struct bnx2fc_hba *hba = io_req->port->priv;
+ dma_addr_t addr;
+ size_t sz;
+
+ mp_req = (struct bnx2fc_mp_req *)&(io_req->mp_req);
+ memset(mp_req, 0, sizeof(struct bnx2fc_mp_req));
+
+ mp_req->req_len = sizeof(struct fcp_cmnd);
+ io_req->data_xfer_len = mp_req->req_len;
+ mp_req->req_buf = dma_alloc_coherent(&hba->pcidev->dev, PAGE_SIZE,
+ &mp_req->req_buf_dma,
+ GFP_ATOMIC);
+ if (!mp_req->req_buf) {
+ printk(KERN_ERR PFX "unable to alloc MP req buffer\n");
+ bnx2fc_free_mp_resc(io_req);
+ return FAILED;
+ }
+
+ mp_req->resp_buf = dma_alloc_coherent(&hba->pcidev->dev, PAGE_SIZE,
+ &mp_req->resp_buf_dma,
+ GFP_ATOMIC);
+ if (!mp_req->resp_buf) {
+ printk(KERN_ERR PFX "unable to alloc TM resp buffer\n");
+ bnx2fc_free_mp_resc(io_req);
+ return FAILED;
+ }
+ memset(mp_req->req_buf, 0, PAGE_SIZE);
+ memset(mp_req->resp_buf, 0, PAGE_SIZE);
+
+ /* Allocate and map mp_req_bd and mp_resp_bd */
+ sz = sizeof(struct fcoe_bd_ctx);
+ mp_req->mp_req_bd = dma_alloc_coherent(&hba->pcidev->dev, sz,
+ &mp_req->mp_req_bd_dma,
+ GFP_ATOMIC);
+ if (!mp_req->mp_req_bd) {
+ printk(KERN_ERR PFX "unable to alloc MP req bd\n");
+ bnx2fc_free_mp_resc(io_req);
+ return FAILED;
+ }
+ mp_req->mp_resp_bd = dma_alloc_coherent(&hba->pcidev->dev, sz,
+ &mp_req->mp_resp_bd_dma,
+ GFP_ATOMIC);
+ if (!mp_req->mp_req_bd) {
+ printk(KERN_ERR PFX "unable to alloc MP resp bd\n");
+ bnx2fc_free_mp_resc(io_req);
+ return FAILED;
+ }
+ /* Fill bd table */
+ addr = mp_req->req_buf_dma;
+ mp_req_bd = mp_req->mp_req_bd;
+ mp_req_bd->buf_addr_lo = (u32)addr & 0xffffffff;
+ mp_req_bd->buf_addr_hi = (u32)((u64)addr >> 32);
+ mp_req_bd->buf_len = PAGE_SIZE;
+ mp_req_bd->flags = 0;
+
+ /*
+ * MP buffer is either a task mgmt command or an ELS.
+ * So the assumption is that it consumes a single bd
+ * entry in the bd table
+ */
+ mp_resp_bd = mp_req->mp_resp_bd;
+ addr = mp_req->resp_buf_dma;
+ mp_resp_bd->buf_addr_lo = (u32)addr & 0xffffffff;
+ mp_resp_bd->buf_addr_hi = (u32)((u64)addr >> 32);
+ mp_resp_bd->buf_len = PAGE_SIZE;
+ mp_resp_bd->flags = 0;
+
+ return SUCCESS;
+}
+
+static int bnx2fc_initiate_tmf(struct scsi_cmnd *sc_cmd, u8 tm_flags)
+{
+ struct fc_lport *lport;
+ struct fc_rport *rport = starget_to_rport(scsi_target(sc_cmd->device));
+ struct fc_rport_libfc_priv *rp = rport->dd_data;
+ struct fcoe_port *port;
+ struct bnx2fc_hba *hba;
+ struct bnx2fc_rport *tgt;
+ struct bnx2fc_cmd *io_req;
+ struct bnx2fc_mp_req *tm_req;
+ struct fcoe_task_ctx_entry *task;
+ struct fcoe_task_ctx_entry *task_page;
+ struct Scsi_Host *host = sc_cmd->device->host;
+ struct fc_frame_header *fc_hdr;
+ struct fcp_cmnd *fcp_cmnd;
+ int task_idx, index;
+ int rc = SUCCESS;
+ u16 xid;
+ u32 sid, did;
+ unsigned long start = jiffies;
+
+ lport = shost_priv(host);
+ port = lport_priv(lport);
+ hba = port->priv;
+
+ if (rport == NULL) {
+ printk(KERN_ALERT PFX "device_reset: rport is NULL\n");
+ rc = FAILED;
+ goto tmf_err;
+ }
+
+ rc = fc_block_scsi_eh(sc_cmd);
+ if (rc)
+ return rc;
+
+ if (lport->state != LPORT_ST_READY || !(lport->link_up)) {
+ printk(KERN_ERR PFX "device_reset: link is not ready\n");
+ rc = FAILED;
+ goto tmf_err;
+ }
+ /* rport and tgt are allocated together, so tgt should be non-NULL */
+ tgt = (struct bnx2fc_rport *)&rp[1];
+
+ if (!(test_bit(BNX2FC_FLAG_SESSION_READY, &tgt->flags))) {
+ printk(KERN_ERR PFX "device_reset: tgt not offloaded\n");
+ rc = FAILED;
+ goto tmf_err;
+ }
+retry_tmf:
+ io_req = bnx2fc_elstm_alloc(tgt, BNX2FC_TASK_MGMT_CMD);
+ if (!io_req) {
+ if (time_after(jiffies, start + HZ)) {
+ printk(KERN_ERR PFX "tmf: Failed TMF");
+ rc = FAILED;
+ goto tmf_err;
+ }
+ msleep(20);
+ goto retry_tmf;
+ }
+ /* Initialize rest of io_req fields */
+ io_req->sc_cmd = sc_cmd;
+ io_req->port = port;
+ io_req->tgt = tgt;
+
+ tm_req = (struct bnx2fc_mp_req *)&(io_req->mp_req);
+
+ rc = bnx2fc_init_mp_req(io_req);
+ if (rc == FAILED) {
+ printk(KERN_ERR PFX "Task mgmt MP request init failed\n");
+ kref_put(&io_req->refcount, bnx2fc_cmd_release);
+ goto tmf_err;
+ }
+
+ /* Set TM flags */
+ io_req->io_req_flags = 0;
+ tm_req->tm_flags = tm_flags;
+
+ /* Fill FCP_CMND */
+ bnx2fc_build_fcp_cmnd(io_req, (struct fcp_cmnd *)tm_req->req_buf);
+ fcp_cmnd = (struct fcp_cmnd *)tm_req->req_buf;
+ memset(fcp_cmnd->fc_cdb, 0, sc_cmd->cmd_len);
+ fcp_cmnd->fc_dl = 0;
+
+ /* Fill FC header */
+ fc_hdr = &(tm_req->req_fc_hdr);
+ sid = tgt->sid;
+ did = rport->port_id;
+ __fc_fill_fc_hdr(fc_hdr, FC_RCTL_DD_UNSOL_CMD, did, sid,
+ FC_TYPE_FCP, FC_FC_FIRST_SEQ | FC_FC_END_SEQ |
+ FC_FC_SEQ_INIT, 0);
+ /* Obtain exchange id */
+ xid = io_req->xid;
+
+ BNX2FC_TGT_DBG(tgt, "Initiate TMF - xid = 0x%x\n", xid);
+ task_idx = xid/BNX2FC_TASKS_PER_PAGE;
+ index = xid % BNX2FC_TASKS_PER_PAGE;
+
+ /* Initialize task context for this IO request */
+ task_page = (struct fcoe_task_ctx_entry *) hba->task_ctx[task_idx];
+ task = &(task_page[index]);
+ bnx2fc_init_mp_task(io_req, task);
+
+ sc_cmd->SCp.ptr = (char *)io_req;
+
+ /* Obtain free SQ entry */
+ spin_lock_bh(&tgt->tgt_lock);
+ bnx2fc_add_2_sq(tgt, xid);
+
+ /* Enqueue the io_req to active_tm_queue */
+ io_req->on_tmf_queue = 1;
+ list_add_tail(&io_req->link, &tgt->active_tm_queue);
+
+ init_completion(&io_req->tm_done);
+ io_req->wait_for_comp = 1;
+
+ /* Ring doorbell */
+ bnx2fc_ring_doorbell(tgt);
+ spin_unlock_bh(&tgt->tgt_lock);
+
+ rc = wait_for_completion_timeout(&io_req->tm_done,
+ BNX2FC_TM_TIMEOUT * HZ);
+ spin_lock_bh(&tgt->tgt_lock);
+
+ io_req->wait_for_comp = 0;
+ if (!(test_bit(BNX2FC_FLAG_TM_COMPL, &io_req->req_flags)))
+ set_bit(BNX2FC_FLAG_TM_TIMEOUT, &io_req->req_flags);
+
+ spin_unlock_bh(&tgt->tgt_lock);
+
+ if (!rc) {
+ printk(KERN_ERR PFX "task mgmt command failed...\n");
+ rc = FAILED;
+ } else {
+ printk(KERN_ERR PFX "task mgmt command success...\n");
+ rc = SUCCESS;
+ }
+tmf_err:
+ return rc;
+}
+
+int bnx2fc_initiate_abts(struct bnx2fc_cmd *io_req)
+{
+ struct fc_lport *lport;
+ struct bnx2fc_rport *tgt = io_req->tgt;
+ struct fc_rport *rport = tgt->rport;
+ struct fc_rport_priv *rdata = tgt->rdata;
+ struct bnx2fc_hba *hba;
+ struct fcoe_port *port;
+ struct bnx2fc_cmd *abts_io_req;
+ struct fcoe_task_ctx_entry *task;
+ struct fcoe_task_ctx_entry *task_page;
+ struct fc_frame_header *fc_hdr;
+ struct bnx2fc_mp_req *abts_req;
+ int task_idx, index;
+ u32 sid, did;
+ u16 xid;
+ int rc = SUCCESS;
+ u32 r_a_tov = rdata->r_a_tov;
+
+ /* called with tgt_lock held */
+ BNX2FC_IO_DBG(io_req, "Entered bnx2fc_initiate_abts\n");
+
+ port = io_req->port;
+ hba = port->priv;
+ lport = port->lport;
+
+ if (!test_bit(BNX2FC_FLAG_SESSION_READY, &tgt->flags)) {
+ printk(KERN_ERR PFX "initiate_abts: tgt not offloaded\n");
+ rc = FAILED;
+ goto abts_err;
+ }
+
+ if (rport == NULL) {
+ printk(KERN_ALERT PFX "initiate_abts: rport is NULL\n");
+ rc = FAILED;
+ goto abts_err;
+ }
+
+ if (lport->state != LPORT_ST_READY || !(lport->link_up)) {
+ printk(KERN_ERR PFX "initiate_abts: link is not ready\n");
+ rc = FAILED;
+ goto abts_err;
+ }
+
+ abts_io_req = bnx2fc_elstm_alloc(tgt, BNX2FC_ABTS);
+ if (!abts_io_req) {
+ printk(KERN_ERR PFX "abts: couldnt allocate cmd\n");
+ rc = FAILED;
+ goto abts_err;
+ }
+
+ /* Initialize rest of io_req fields */
+ abts_io_req->sc_cmd = NULL;
+ abts_io_req->port = port;
+ abts_io_req->tgt = tgt;
+ abts_io_req->data_xfer_len = 0; /* No data transfer for ABTS */
+
+ abts_req = (struct bnx2fc_mp_req *)&(abts_io_req->mp_req);
+ memset(abts_req, 0, sizeof(struct bnx2fc_mp_req));
+
+ /* Fill FC header */
+ fc_hdr = &(abts_req->req_fc_hdr);
+
+ /* Obtain oxid and rxid for the original exchange to be aborted */
+ fc_hdr->fh_ox_id = htons(io_req->xid);
+ fc_hdr->fh_rx_id = htons(io_req->task->rx_wr_tx_rd.rx_id);
+
+ sid = tgt->sid;
+ did = rport->port_id;
+
+ __fc_fill_fc_hdr(fc_hdr, FC_RCTL_BA_ABTS, did, sid,
+ FC_TYPE_BLS, FC_FC_FIRST_SEQ | FC_FC_END_SEQ |
+ FC_FC_SEQ_INIT, 0);
+
+ xid = abts_io_req->xid;
+ BNX2FC_IO_DBG(abts_io_req, "ABTS io_req\n");
+ task_idx = xid/BNX2FC_TASKS_PER_PAGE;
+ index = xid % BNX2FC_TASKS_PER_PAGE;
+
+ /* Initialize task context for this IO request */
+ task_page = (struct fcoe_task_ctx_entry *) hba->task_ctx[task_idx];
+ task = &(task_page[index]);
+ bnx2fc_init_mp_task(abts_io_req, task);
+
+ /*
+ * ABTS task is a temporary task that will be cleaned up
+ * irrespective of ABTS response. We need to start the timer
+ * for the original exchange, as the CQE is posted for the original
+ * IO request.
+ *
+ * Timer for ABTS is started only when it is originated by a
+ * TM request. For the ABTS issued as part of ULP timeout,
+ * scsi-ml maintains the timers.
+ */
+
+ /* if (test_bit(BNX2FC_FLAG_ISSUE_ABTS, &io_req->req_flags))*/
+ bnx2fc_cmd_timer_set(io_req, 2 * r_a_tov);
+
+ /* Obtain free SQ entry */
+ bnx2fc_add_2_sq(tgt, xid);
+
+ /* Ring doorbell */
+ bnx2fc_ring_doorbell(tgt);
+
+abts_err:
+ return rc;
+}
+
+int bnx2fc_initiate_cleanup(struct bnx2fc_cmd *io_req)
+{
+ struct fc_lport *lport;
+ struct bnx2fc_rport *tgt = io_req->tgt;
+ struct bnx2fc_hba *hba;
+ struct fcoe_port *port;
+ struct bnx2fc_cmd *cleanup_io_req;
+ struct fcoe_task_ctx_entry *task;
+ struct fcoe_task_ctx_entry *task_page;
+ int task_idx, index;
+ u16 xid, orig_xid;
+ int rc = 0;
+
+ /* ASSUMPTION: called with tgt_lock held */
+ BNX2FC_IO_DBG(io_req, "Entered bnx2fc_initiate_cleanup\n");
+
+ port = io_req->port;
+ hba = port->priv;
+ lport = port->lport;
+
+ cleanup_io_req = bnx2fc_elstm_alloc(tgt, BNX2FC_CLEANUP);
+ if (!cleanup_io_req) {
+ printk(KERN_ERR PFX "cleanup: couldnt allocate cmd\n");
+ rc = -1;
+ goto cleanup_err;
+ }
+
+ /* Initialize rest of io_req fields */
+ cleanup_io_req->sc_cmd = NULL;
+ cleanup_io_req->port = port;
+ cleanup_io_req->tgt = tgt;
+ cleanup_io_req->data_xfer_len = 0; /* No data transfer for cleanup */
+
+ xid = cleanup_io_req->xid;
+
+ task_idx = xid/BNX2FC_TASKS_PER_PAGE;
+ index = xid % BNX2FC_TASKS_PER_PAGE;
+
+ /* Initialize task context for this IO request */
+ task_page = (struct fcoe_task_ctx_entry *) hba->task_ctx[task_idx];
+ task = &(task_page[index]);
+ orig_xid = io_req->xid;
+
+ BNX2FC_IO_DBG(io_req, "CLEANUP io_req xid = 0x%x\n", xid);
+
+ bnx2fc_init_cleanup_task(cleanup_io_req, task, orig_xid);
+
+ /* Obtain free SQ entry */
+ bnx2fc_add_2_sq(tgt, xid);
+
+ /* Ring doorbell */
+ bnx2fc_ring_doorbell(tgt);
+
+cleanup_err:
+ return rc;
+}
+
+/**
+ * bnx2fc_eh_target_reset: Reset a target
+ *
+ * @sc_cmd: SCSI command
+ *
+ * Set from SCSI host template to send task mgmt command to the target
+ * and wait for the response
+ */
+int bnx2fc_eh_target_reset(struct scsi_cmnd *sc_cmd)
+{
+ return bnx2fc_initiate_tmf(sc_cmd, FCP_TMF_TGT_RESET);
+}
+
+/**
+ * bnx2fc_eh_device_reset - Reset a single LUN
+ *
+ * @sc_cmd: SCSI command
+ *
+ * Set from SCSI host template to send task mgmt command to the target
+ * and wait for the response
+ */
+int bnx2fc_eh_device_reset(struct scsi_cmnd *sc_cmd)
+{
+ return bnx2fc_initiate_tmf(sc_cmd, FCP_TMF_LUN_RESET);
+}
+
+/**
+ * bnx2fc_eh_abort - eh_abort_handler api to abort an outstanding
+ * SCSI command
+ *
+ * @sc_cmd: SCSI_ML command pointer
+ *
+ * SCSI abort request handler
+ */
+int bnx2fc_eh_abort(struct scsi_cmnd *sc_cmd)
+{
+ struct fc_rport *rport = starget_to_rport(scsi_target(sc_cmd->device));
+ struct fc_rport_libfc_priv *rp = rport->dd_data;
+ struct bnx2fc_cmd *io_req;
+ struct fc_lport *lport;
+ struct bnx2fc_rport *tgt;
+ int rc = FAILED;
+
+
+ rc = fc_block_scsi_eh(sc_cmd);
+ if (rc)
+ return rc;
+
+ lport = shost_priv(sc_cmd->device->host);
+ if ((lport->state != LPORT_ST_READY) || !(lport->link_up)) {
+ printk(KERN_ALERT PFX "eh_abort: link not ready\n");
+ return rc;
+ }
+
+ tgt = (struct bnx2fc_rport *)&rp[1];
+
+ BNX2FC_TGT_DBG(tgt, "Entered bnx2fc_eh_abort\n");
+
+ spin_lock_bh(&tgt->tgt_lock);
+ io_req = (struct bnx2fc_cmd *)sc_cmd->SCp.ptr;
+ if (!io_req) {
+ /* Command might have just completed */
+ printk(KERN_ERR PFX "eh_abort: io_req is NULL\n");
+ spin_unlock_bh(&tgt->tgt_lock);
+ return SUCCESS;
+ }
+ BNX2FC_IO_DBG(io_req, "eh_abort - refcnt = %d\n",
+ io_req->refcount.refcount.counter);
+
+ /* Hold IO request across abort processing */
+ kref_get(&io_req->refcount);
+
+ BUG_ON(tgt != io_req->tgt);
+
+ /* Remove the io_req from the active_q. */
+ /*
+ * Task Mgmt functions (LUN RESET & TGT RESET) will not
+ * issue an ABTS on this particular IO req, as the
+ * io_req is no longer in the active_q.
+ */
+ if (tgt->flush_in_prog) {
+ printk(KERN_ALERT PFX "eh_abort: io_req (xid = 0x%x) "
+ "flush in progress\n", io_req->xid);
+ kref_put(&io_req->refcount, bnx2fc_cmd_release);
+ spin_unlock_bh(&tgt->tgt_lock);
+ return SUCCESS;
+ }
+
+ if (io_req->on_active_queue == 0) {
+ printk(KERN_ALERT PFX "eh_abort: io_req (xid = 0x%x) "
+ "not on active_q\n", io_req->xid);
+ /*
+ * This condition can happen only due to the FW bug,
+ * where we do not receive cleanup response from
+ * the FW. Handle this case gracefully by erroring
+ * back the IO request to SCSI-ml
+ */
+ bnx2fc_scsi_done(io_req, DID_ABORT);
+
+ kref_put(&io_req->refcount, bnx2fc_cmd_release);
+ spin_unlock_bh(&tgt->tgt_lock);
+ return SUCCESS;
+ }
+
+ /*
+ * Only eh_abort processing will remove the IO from
+ * active_cmd_q before processing the request. this is
+ * done to avoid race conditions between IOs aborted
+ * as part of task management completion and eh_abort
+ * processing
+ */
+ list_del_init(&io_req->link);
+ io_req->on_active_queue = 0;
+ /* Move IO req to retire queue */
+ list_add_tail(&io_req->link, &tgt->io_retire_queue);
+
+ init_completion(&io_req->tm_done);
+ io_req->wait_for_comp = 1;
+
+ if (!test_and_set_bit(BNX2FC_FLAG_ISSUE_ABTS, &io_req->req_flags)) {
+ /* Cancel the current timer running on this io_req */
+ if (cancel_delayed_work(&io_req->timeout_work))
+ kref_put(&io_req->refcount,
+ bnx2fc_cmd_release); /* drop timer hold */
+ set_bit(BNX2FC_FLAG_EH_ABORT, &io_req->req_flags);
+ rc = bnx2fc_initiate_abts(io_req);
+ } else {
+ printk(KERN_ALERT PFX "eh_abort: io_req (xid = 0x%x) "
+ "already in abts processing\n", io_req->xid);
+ kref_put(&io_req->refcount, bnx2fc_cmd_release);
+ spin_unlock_bh(&tgt->tgt_lock);
+ return SUCCESS;
+ }
+ if (rc == FAILED) {
+ kref_put(&io_req->refcount, bnx2fc_cmd_release);
+ spin_unlock_bh(&tgt->tgt_lock);
+ return rc;
+ }
+ spin_unlock_bh(&tgt->tgt_lock);
+
+ wait_for_completion(&io_req->tm_done);
+
+ spin_lock_bh(&tgt->tgt_lock);
+ io_req->wait_for_comp = 0;
+ if (!(test_and_set_bit(BNX2FC_FLAG_ABTS_DONE,
+ &io_req->req_flags))) {
+ /* Let the scsi-ml try to recover this command */
+ printk(KERN_ERR PFX "abort failed, xid = 0x%x\n",
+ io_req->xid);
+ rc = FAILED;
+ } else {
+ /*
+ * We come here even when there was a race condition
+ * between timeout and abts completion, and abts
+ * completion happens just in time.
+ */
+ BNX2FC_IO_DBG(io_req, "abort succeeded\n");
+ rc = SUCCESS;
+ bnx2fc_scsi_done(io_req, DID_ABORT);
+ kref_put(&io_req->refcount, bnx2fc_cmd_release);
+ }
+
+ /* release the reference taken in eh_abort */
+ kref_put(&io_req->refcount, bnx2fc_cmd_release);
+ spin_unlock_bh(&tgt->tgt_lock);
+ return rc;
+}
+
+void bnx2fc_process_cleanup_compl(struct bnx2fc_cmd *io_req,
+ struct fcoe_task_ctx_entry *task,
+ u8 num_rq)
+{
+ BNX2FC_IO_DBG(io_req, "Entered process_cleanup_compl "
+ "refcnt = %d, cmd_type = %d\n",
+ io_req->refcount.refcount.counter, io_req->cmd_type);
+ bnx2fc_scsi_done(io_req, DID_ERROR);
+ kref_put(&io_req->refcount, bnx2fc_cmd_release);
+}
+
+void bnx2fc_process_abts_compl(struct bnx2fc_cmd *io_req,
+ struct fcoe_task_ctx_entry *task,
+ u8 num_rq)
+{
+ u32 r_ctl;
+ u32 r_a_tov = FC_DEF_R_A_TOV;
+ u8 issue_rrq = 0;
+ struct bnx2fc_rport *tgt = io_req->tgt;
+
+ BNX2FC_IO_DBG(io_req, "Entered process_abts_compl xid = 0x%x"
+ "refcnt = %d, cmd_type = %d\n",
+ io_req->xid,
+ io_req->refcount.refcount.counter, io_req->cmd_type);
+
+ if (test_and_set_bit(BNX2FC_FLAG_ABTS_DONE,
+ &io_req->req_flags)) {
+ BNX2FC_IO_DBG(io_req, "Timer context finished processing"
+ " this io\n");
+ return;
+ }
+
+ /* Do not issue RRQ as this IO is already cleanedup */
+ if (test_and_set_bit(BNX2FC_FLAG_IO_CLEANUP,
+ &io_req->req_flags))
+ goto io_compl;
+
+ /*
+ * For ABTS issued due to SCSI eh_abort_handler, timeout
+ * values are maintained by scsi-ml itself. Cancel timeout
+ * in case ABTS issued as part of task management function
+ * or due to FW error.
+ */
+ if (test_bit(BNX2FC_FLAG_ISSUE_ABTS, &io_req->req_flags))
+ if (cancel_delayed_work(&io_req->timeout_work))
+ kref_put(&io_req->refcount,
+ bnx2fc_cmd_release); /* drop timer hold */
+
+ r_ctl = task->cmn.general.rsp_info.abts_rsp.r_ctl;
+
+ switch (r_ctl) {
+ case FC_RCTL_BA_ACC:
+ /*
+ * Dont release this cmd yet. It will be relesed
+ * after we get RRQ response
+ */
+ BNX2FC_IO_DBG(io_req, "ABTS response - ACC Send RRQ\n");
+ issue_rrq = 1;
+ break;
+
+ case FC_RCTL_BA_RJT:
+ BNX2FC_IO_DBG(io_req, "ABTS response - RJT\n");
+ break;
+ default:
+ printk(KERN_ERR PFX "Unknown ABTS response\n");
+ break;
+ }
+
+ if (issue_rrq) {
+ BNX2FC_IO_DBG(io_req, "Issue RRQ after R_A_TOV\n");
+ set_bit(BNX2FC_FLAG_ISSUE_RRQ, &io_req->req_flags);
+ }
+ set_bit(BNX2FC_FLAG_RETIRE_OXID, &io_req->req_flags);
+ bnx2fc_cmd_timer_set(io_req, r_a_tov);
+
+io_compl:
+ if (io_req->wait_for_comp) {
+ if (test_and_clear_bit(BNX2FC_FLAG_EH_ABORT,
+ &io_req->req_flags))
+ complete(&io_req->tm_done);
+ } else {
+ /*
+ * We end up here when ABTS is issued as
+ * in asynchronous context, i.e., as part
+ * of task management completion, or
+ * when FW error is received or when the
+ * ABTS is issued when the IO is timed
+ * out.
+ */
+
+ if (io_req->on_active_queue) {
+ list_del_init(&io_req->link);
+ io_req->on_active_queue = 0;
+ /* Move IO req to retire queue */
+ list_add_tail(&io_req->link, &tgt->io_retire_queue);
+ }
+ bnx2fc_scsi_done(io_req, DID_ERROR);
+ kref_put(&io_req->refcount, bnx2fc_cmd_release);
+ }
+}
+
+static void bnx2fc_lun_reset_cmpl(struct bnx2fc_cmd *io_req)
+{
+ struct scsi_cmnd *sc_cmd = io_req->sc_cmd;
+ struct bnx2fc_rport *tgt = io_req->tgt;
+ struct list_head *list;
+ struct list_head *tmp;
+ struct bnx2fc_cmd *cmd;
+ int tm_lun = sc_cmd->device->lun;
+ int rc = 0;
+ int lun;
+
+ /* called with tgt_lock held */
+ BNX2FC_IO_DBG(io_req, "Entered bnx2fc_lun_reset_cmpl\n");
+ /*
+ * Walk thru the active_ios queue and ABORT the IO
+ * that matches with the LUN that was reset
+ */
+ list_for_each_safe(list, tmp, &tgt->active_cmd_queue) {
+ BNX2FC_TGT_DBG(tgt, "LUN RST cmpl: scan for pending IOs\n");
+ cmd = (struct bnx2fc_cmd *)list;
+ lun = cmd->sc_cmd->device->lun;
+ if (lun == tm_lun) {
+ /* Initiate ABTS on this cmd */
+ if (!test_and_set_bit(BNX2FC_FLAG_ISSUE_ABTS,
+ &cmd->req_flags)) {
+ /* cancel the IO timeout */
+ if (cancel_delayed_work(&io_req->timeout_work))
+ kref_put(&io_req->refcount,
+ bnx2fc_cmd_release);
+ /* timer hold */
+ rc = bnx2fc_initiate_abts(cmd);
+ /* abts shouldnt fail in this context */
+ WARN_ON(rc != SUCCESS);
+ } else
+ printk(KERN_ERR PFX "lun_rst: abts already in"
+ " progress for this IO 0x%x\n",
+ cmd->xid);
+ }
+ }
+}
+
+static void bnx2fc_tgt_reset_cmpl(struct bnx2fc_cmd *io_req)
+{
+ struct bnx2fc_rport *tgt = io_req->tgt;
+ struct list_head *list;
+ struct list_head *tmp;
+ struct bnx2fc_cmd *cmd;
+ int rc = 0;
+
+ /* called with tgt_lock held */
+ BNX2FC_IO_DBG(io_req, "Entered bnx2fc_tgt_reset_cmpl\n");
+ /*
+ * Walk thru the active_ios queue and ABORT the IO
+ * that matches with the LUN that was reset
+ */
+ list_for_each_safe(list, tmp, &tgt->active_cmd_queue) {
+ BNX2FC_TGT_DBG(tgt, "TGT RST cmpl: scan for pending IOs\n");
+ cmd = (struct bnx2fc_cmd *)list;
+ /* Initiate ABTS */
+ if (!test_and_set_bit(BNX2FC_FLAG_ISSUE_ABTS,
+ &cmd->req_flags)) {
+ /* cancel the IO timeout */
+ if (cancel_delayed_work(&io_req->timeout_work))
+ kref_put(&io_req->refcount,
+ bnx2fc_cmd_release); /* timer hold */
+ rc = bnx2fc_initiate_abts(cmd);
+ /* abts shouldnt fail in this context */
+ WARN_ON(rc != SUCCESS);
+
+ } else
+ printk(KERN_ERR PFX "tgt_rst: abts already in progress"
+ " for this IO 0x%x\n", cmd->xid);
+ }
+}
+
+void bnx2fc_process_tm_compl(struct bnx2fc_cmd *io_req,
+ struct fcoe_task_ctx_entry *task, u8 num_rq)
+{
+ struct bnx2fc_mp_req *tm_req;
+ struct fc_frame_header *fc_hdr;
+ struct scsi_cmnd *sc_cmd = io_req->sc_cmd;
+ u64 *hdr;
+ u64 *temp_hdr;
+ void *rsp_buf;
+
+ /* Called with tgt_lock held */
+ BNX2FC_IO_DBG(io_req, "Entered process_tm_compl\n");
+
+ if (!(test_bit(BNX2FC_FLAG_TM_TIMEOUT, &io_req->req_flags)))
+ set_bit(BNX2FC_FLAG_TM_COMPL, &io_req->req_flags);
+ else {
+ /* TM has already timed out and we got
+ * delayed completion. Ignore completion
+ * processing.
+ */
+ return;
+ }
+
+ tm_req = &(io_req->mp_req);
+ fc_hdr = &(tm_req->resp_fc_hdr);
+ hdr = (u64 *)fc_hdr;
+ temp_hdr = (u64 *)
+ &task->cmn.general.cmd_info.mp_fc_frame.fc_hdr;
+ hdr[0] = cpu_to_be64(temp_hdr[0]);
+ hdr[1] = cpu_to_be64(temp_hdr[1]);
+ hdr[2] = cpu_to_be64(temp_hdr[2]);
+
+ tm_req->resp_len = task->rx_wr_only.sgl_ctx.mul_sges.cur_sge_off;
+
+ rsp_buf = tm_req->resp_buf;
+
+ if (fc_hdr->fh_r_ctl == FC_RCTL_DD_CMD_STATUS) {
+ bnx2fc_parse_fcp_rsp(io_req,
+ (struct fcoe_fcp_rsp_payload *)
+ rsp_buf, num_rq);
+ if (io_req->fcp_rsp_code == 0) {
+ /* TM successful */
+ if (tm_req->tm_flags & FCP_TMF_LUN_RESET)
+ bnx2fc_lun_reset_cmpl(io_req);
+ else if (tm_req->tm_flags & FCP_TMF_TGT_RESET)
+ bnx2fc_tgt_reset_cmpl(io_req);
+ }
+ } else {
+ printk(KERN_ERR PFX "tmf's fc_hdr r_ctl = 0x%x\n",
+ fc_hdr->fh_r_ctl);
+ }
+ if (!sc_cmd->SCp.ptr) {
+ printk(KERN_ALERT PFX "tm_compl: SCp.ptr is NULL\n");
+ return;
+ }
+ switch (io_req->fcp_status) {
+ case FC_GOOD:
+ if (io_req->cdb_status == 0) {
+ /* Good IO completion */
+ sc_cmd->result = DID_OK << 16;
+ } else {
+ /* Transport status is good, SCSI status not good */
+ sc_cmd->result = (DID_OK << 16) | io_req->cdb_status;
+ }
+ if (io_req->fcp_resid)
+ scsi_set_resid(sc_cmd, io_req->fcp_resid);
+ break;
+
+ default:
+ BNX2FC_IO_DBG(io_req, "process_tm_compl: fcp_status = %d\n",
+ io_req->fcp_status);
+ break;
+ }
+
+ sc_cmd = io_req->sc_cmd;
+ io_req->sc_cmd = NULL;
+
+ /* check if the io_req exists in tgt's tmf_q */
+ if (io_req->on_tmf_queue) {
+
+ list_del_init(&io_req->link);
+ io_req->on_tmf_queue = 0;
+ } else {
+
+ printk(KERN_ALERT PFX "Command not on active_cmd_queue!\n");
+ return;
+ }
+
+ sc_cmd->SCp.ptr = NULL;
+ sc_cmd->scsi_done(sc_cmd);
+
+ kref_put(&io_req->refcount, bnx2fc_cmd_release);
+ if (io_req->wait_for_comp) {
+ BNX2FC_IO_DBG(io_req, "tm_compl - wake up the waiter\n");
+ complete(&io_req->tm_done);
+ }
+}
+
+static int bnx2fc_split_bd(struct bnx2fc_cmd *io_req, u64 addr, int sg_len,
+ int bd_index)
+{
+ struct fcoe_bd_ctx *bd = io_req->bd_tbl->bd_tbl;
+ int frag_size, sg_frags;
+
+ sg_frags = 0;
+ while (sg_len) {
+ if (sg_len >= BNX2FC_BD_SPLIT_SZ)
+ frag_size = BNX2FC_BD_SPLIT_SZ;
+ else
+ frag_size = sg_len;
+ bd[bd_index + sg_frags].buf_addr_lo = addr & 0xffffffff;
+ bd[bd_index + sg_frags].buf_addr_hi = addr >> 32;
+ bd[bd_index + sg_frags].buf_len = (u16)frag_size;
+ bd[bd_index + sg_frags].flags = 0;
+
+ addr += (u64) frag_size;
+ sg_frags++;
+ sg_len -= frag_size;
+ }
+ return sg_frags;
+
+}
+
+static int bnx2fc_map_sg(struct bnx2fc_cmd *io_req)
+{
+ struct scsi_cmnd *sc = io_req->sc_cmd;
+ struct fcoe_bd_ctx *bd = io_req->bd_tbl->bd_tbl;
+ struct scatterlist *sg;
+ int byte_count = 0;
+ int sg_count = 0;
+ int bd_count = 0;
+ int sg_frags;
+ unsigned int sg_len;
+ u64 addr;
+ int i;
+
+ sg_count = scsi_dma_map(sc);
+ scsi_for_each_sg(sc, sg, sg_count, i) {
+ sg_len = sg_dma_len(sg);
+ addr = sg_dma_address(sg);
+ if (sg_len > BNX2FC_MAX_BD_LEN) {
+ sg_frags = bnx2fc_split_bd(io_req, addr, sg_len,
+ bd_count);
+ } else {
+
+ sg_frags = 1;
+ bd[bd_count].buf_addr_lo = addr & 0xffffffff;
+ bd[bd_count].buf_addr_hi = addr >> 32;
+ bd[bd_count].buf_len = (u16)sg_len;
+ bd[bd_count].flags = 0;
+ }
+ bd_count += sg_frags;
+ byte_count += sg_len;
+ }
+ if (byte_count != scsi_bufflen(sc))
+ printk(KERN_ERR PFX "byte_count = %d != scsi_bufflen = %d, "
+ "task_id = 0x%x\n", byte_count, scsi_bufflen(sc),
+ io_req->xid);
+ return bd_count;
+}
+
+static void bnx2fc_build_bd_list_from_sg(struct bnx2fc_cmd *io_req)
+{
+ struct scsi_cmnd *sc = io_req->sc_cmd;
+ struct fcoe_bd_ctx *bd = io_req->bd_tbl->bd_tbl;
+ int bd_count;
+
+ if (scsi_sg_count(sc))
+ bd_count = bnx2fc_map_sg(io_req);
+ else {
+ bd_count = 0;
+ bd[0].buf_addr_lo = bd[0].buf_addr_hi = 0;
+ bd[0].buf_len = bd[0].flags = 0;
+ }
+ io_req->bd_tbl->bd_valid = bd_count;
+}
+
+static void bnx2fc_unmap_sg_list(struct bnx2fc_cmd *io_req)
+{
+ struct scsi_cmnd *sc = io_req->sc_cmd;
+
+ if (io_req->bd_tbl->bd_valid && sc) {
+ scsi_dma_unmap(sc);
+ io_req->bd_tbl->bd_valid = 0;
+ }
+}
+
+void bnx2fc_build_fcp_cmnd(struct bnx2fc_cmd *io_req,
+ struct fcp_cmnd *fcp_cmnd)
+{
+ struct scsi_cmnd *sc_cmd = io_req->sc_cmd;
+ char tag[2];
+
+ memset(fcp_cmnd, 0, sizeof(struct fcp_cmnd));
+
+ int_to_scsilun(sc_cmd->device->lun,
+ (struct scsi_lun *) fcp_cmnd->fc_lun);
+
+
+ fcp_cmnd->fc_dl = htonl(io_req->data_xfer_len);
+ memcpy(fcp_cmnd->fc_cdb, sc_cmd->cmnd, sc_cmd->cmd_len);
+
+ fcp_cmnd->fc_cmdref = 0;
+ fcp_cmnd->fc_pri_ta = 0;
+ fcp_cmnd->fc_tm_flags = io_req->mp_req.tm_flags;
+ fcp_cmnd->fc_flags = io_req->io_req_flags;
+
+ if (scsi_populate_tag_msg(sc_cmd, tag)) {
+ switch (tag[0]) {
+ case HEAD_OF_QUEUE_TAG:
+ fcp_cmnd->fc_pri_ta = FCP_PTA_HEADQ;
+ break;
+ case ORDERED_QUEUE_TAG:
+ fcp_cmnd->fc_pri_ta = FCP_PTA_ORDERED;
+ break;
+ default:
+ fcp_cmnd->fc_pri_ta = FCP_PTA_SIMPLE;
+ break;
+ }
+ } else {
+ fcp_cmnd->fc_pri_ta = 0;
+ }
+}
+
+static void bnx2fc_parse_fcp_rsp(struct bnx2fc_cmd *io_req,
+ struct fcoe_fcp_rsp_payload *fcp_rsp,
+ u8 num_rq)
+{
+ struct scsi_cmnd *sc_cmd = io_req->sc_cmd;
+ struct bnx2fc_rport *tgt = io_req->tgt;
+ u8 rsp_flags = fcp_rsp->fcp_flags.flags;
+ u32 rq_buff_len = 0;
+ int i;
+ unsigned char *rq_data;
+ unsigned char *dummy;
+ int fcp_sns_len = 0;
+ int fcp_rsp_len = 0;
+
+ io_req->fcp_status = FC_GOOD;
+ io_req->fcp_resid = fcp_rsp->fcp_resid;
+
+ io_req->scsi_comp_flags = rsp_flags;
+ CMD_SCSI_STATUS(sc_cmd) = io_req->cdb_status =
+ fcp_rsp->scsi_status_code;
+
+ /* Fetch fcp_rsp_info and fcp_sns_info if available */
+ if (num_rq) {
+
+ /*
+ * We do not anticipate num_rq >1, as the linux defined
+ * SCSI_SENSE_BUFFERSIZE is 96 bytes + 8 bytes of FCP_RSP_INFO
+ * 256 bytes of single rq buffer is good enough to hold this.
+ */
+
+ if (rsp_flags &
+ FCOE_FCP_RSP_FLAGS_FCP_RSP_LEN_VALID) {
+ fcp_rsp_len = rq_buff_len
+ = fcp_rsp->fcp_rsp_len;
+ }
+
+ if (rsp_flags &
+ FCOE_FCP_RSP_FLAGS_FCP_SNS_LEN_VALID) {
+ fcp_sns_len = fcp_rsp->fcp_sns_len;
+ rq_buff_len += fcp_rsp->fcp_sns_len;
+ }
+
+ io_req->fcp_rsp_len = fcp_rsp_len;
+ io_req->fcp_sns_len = fcp_sns_len;
+
+ if (rq_buff_len > num_rq * BNX2FC_RQ_BUF_SZ) {
+ /* Invalid sense sense length. */
+ printk(KERN_ALERT PFX "invalid sns length %d\n",
+ rq_buff_len);
+ /* reset rq_buff_len */
+ rq_buff_len = num_rq * BNX2FC_RQ_BUF_SZ;
+ }
+
+ rq_data = bnx2fc_get_next_rqe(tgt, 1);
+
+ if (num_rq > 1) {
+ /* We do not need extra sense data */
+ for (i = 1; i < num_rq; i++)
+ dummy = bnx2fc_get_next_rqe(tgt, 1);
+ }
+
+ /* fetch fcp_rsp_code */
+ if ((fcp_rsp_len == 4) || (fcp_rsp_len == 8)) {
+ /* Only for task management function */
+ io_req->fcp_rsp_code = rq_data[3];
+ printk(KERN_ERR PFX "fcp_rsp_code = %d\n",
+ io_req->fcp_rsp_code);
+ }
+
+ /* fetch sense data */
+ rq_data += fcp_rsp_len;
+
+ if (fcp_sns_len > SCSI_SENSE_BUFFERSIZE) {
+ printk(KERN_ERR PFX "Truncating sense buffer\n");
+ fcp_sns_len = SCSI_SENSE_BUFFERSIZE;
+ }
+
+ memset(sc_cmd->sense_buffer, 0, sizeof(sc_cmd->sense_buffer));
+ if (fcp_sns_len)
+ memcpy(sc_cmd->sense_buffer, rq_data, fcp_sns_len);
+
+ /* return RQ entries */
+ for (i = 0; i < num_rq; i++)
+ bnx2fc_return_rqe(tgt, 1);
+ }
+}
+
+/**
+ * bnx2fc_queuecommand - Queuecommand function of the scsi template
+ *
+ * @host: The Scsi_Host the command was issued to
+ * @sc_cmd: struct scsi_cmnd to be executed
+ *
+ * This is the IO strategy routine, called by SCSI-ML
+ **/
+int bnx2fc_queuecommand(struct Scsi_Host *host,
+ struct scsi_cmnd *sc_cmd)
+{
+ struct fc_lport *lport = shost_priv(host);
+ struct fc_rport *rport = starget_to_rport(scsi_target(sc_cmd->device));
+ struct fc_rport_libfc_priv *rp = rport->dd_data;
+ struct bnx2fc_rport *tgt;
+ struct bnx2fc_cmd *io_req;
+ int rc = 0;
+ int rval;
+
+ rval = fc_remote_port_chkready(rport);
+ if (rval) {
+ sc_cmd->result = rval;
+ sc_cmd->scsi_done(sc_cmd);
+ return 0;
+ }
+
+ if ((lport->state != LPORT_ST_READY) || !(lport->link_up)) {
+ rc = SCSI_MLQUEUE_HOST_BUSY;
+ goto exit_qcmd;
+ }
+
+ /* rport and tgt are allocated together, so tgt should be non-NULL */
+ tgt = (struct bnx2fc_rport *)&rp[1];
+
+ if (!test_bit(BNX2FC_FLAG_SESSION_READY, &tgt->flags)) {
+ /*
+ * Session is not offloaded yet. Let SCSI-ml retry
+ * the command.
+ */
+ rc = SCSI_MLQUEUE_TARGET_BUSY;
+ goto exit_qcmd;
+ }
+
+ io_req = bnx2fc_cmd_alloc(tgt);
+ if (!io_req) {
+ rc = SCSI_MLQUEUE_HOST_BUSY;
+ goto exit_qcmd;
+ }
+ io_req->sc_cmd = sc_cmd;
+
+ if (bnx2fc_post_io_req(tgt, io_req)) {
+ printk(KERN_ERR PFX "Unable to post io_req\n");
+ rc = SCSI_MLQUEUE_HOST_BUSY;
+ goto exit_qcmd;
+ }
+exit_qcmd:
+ return rc;
+}
+
+void bnx2fc_process_scsi_cmd_compl(struct bnx2fc_cmd *io_req,
+ struct fcoe_task_ctx_entry *task,
+ u8 num_rq)
+{
+ struct fcoe_fcp_rsp_payload *fcp_rsp;
+ struct bnx2fc_rport *tgt = io_req->tgt;
+ struct scsi_cmnd *sc_cmd;
+ struct Scsi_Host *host;
+
+
+ /* scsi_cmd_cmpl is called with tgt lock held */
+
+ if (test_and_set_bit(BNX2FC_FLAG_IO_COMPL, &io_req->req_flags)) {
+ /* we will not receive ABTS response for this IO */
+ BNX2FC_IO_DBG(io_req, "Timer context finished processing "
+ "this scsi cmd\n");
+ }
+
+ /* Cancel the timeout_work, as we received IO completion */
+ if (cancel_delayed_work(&io_req->timeout_work))
+ kref_put(&io_req->refcount,
+ bnx2fc_cmd_release); /* drop timer hold */
+
+ sc_cmd = io_req->sc_cmd;
+ if (sc_cmd == NULL) {
+ printk(KERN_ERR PFX "scsi_cmd_compl - sc_cmd is NULL\n");
+ return;
+ }
+
+ /* Fetch fcp_rsp from task context and perform cmd completion */
+ fcp_rsp = (struct fcoe_fcp_rsp_payload *)
+ &(task->cmn.general.rsp_info.fcp_rsp.payload);
+
+ /* parse fcp_rsp and obtain sense data from RQ if available */
+ bnx2fc_parse_fcp_rsp(io_req, fcp_rsp, num_rq);
+
+ host = sc_cmd->device->host;
+ if (!sc_cmd->SCp.ptr) {
+ printk(KERN_ERR PFX "SCp.ptr is NULL\n");
+ return;
+ }
+ io_req->sc_cmd = NULL;
+
+ if (io_req->on_active_queue) {
+ list_del_init(&io_req->link);
+ io_req->on_active_queue = 0;
+ /* Move IO req to retire queue */
+ list_add_tail(&io_req->link, &tgt->io_retire_queue);
+ } else {
+ /* This should not happen, but could have been pulled
+ * by bnx2fc_flush_active_ios(), or during a race
+ * between command abort and (late) completion.
+ */
+ BNX2FC_IO_DBG(io_req, "xid not on active_cmd_queue\n");
+ if (io_req->wait_for_comp)
+ if (test_and_clear_bit(BNX2FC_FLAG_EH_ABORT,
+ &io_req->req_flags))
+ complete(&io_req->tm_done);
+ }
+
+ bnx2fc_unmap_sg_list(io_req);
+
+ switch (io_req->fcp_status) {
+ case FC_GOOD:
+ if (io_req->cdb_status == 0) {
+ /* Good IO completion */
+ sc_cmd->result = DID_OK << 16;
+ } else {
+ /* Transport status is good, SCSI status not good */
+ BNX2FC_IO_DBG(io_req, "scsi_cmpl: cdb_status = %d"
+ " fcp_resid = 0x%x\n",
+ io_req->cdb_status, io_req->fcp_resid);
+ sc_cmd->result = (DID_OK << 16) | io_req->cdb_status;
+ }
+ if (io_req->fcp_resid)
+ scsi_set_resid(sc_cmd, io_req->fcp_resid);
+ break;
+ default:
+ printk(KERN_ALERT PFX "scsi_cmd_compl: fcp_status = %d\n",
+ io_req->fcp_status);
+ break;
+ }
+ sc_cmd->SCp.ptr = NULL;
+ sc_cmd->scsi_done(sc_cmd);
+ kref_put(&io_req->refcount, bnx2fc_cmd_release);
+}
+
+static int bnx2fc_post_io_req(struct bnx2fc_rport *tgt,
+ struct bnx2fc_cmd *io_req)
+{
+ struct fcoe_task_ctx_entry *task;
+ struct fcoe_task_ctx_entry *task_page;
+ struct scsi_cmnd *sc_cmd = io_req->sc_cmd;
+ struct fcoe_port *port = tgt->port;
+ struct bnx2fc_hba *hba = port->priv;
+ struct fc_lport *lport = port->lport;
+ struct fcoe_dev_stats *stats;
+ int task_idx, index;
+ u16 xid;
+
+ /* Initialize rest of io_req fields */
+ io_req->cmd_type = BNX2FC_SCSI_CMD;
+ io_req->port = port;
+ io_req->tgt = tgt;
+ io_req->data_xfer_len = scsi_bufflen(sc_cmd);
+ sc_cmd->SCp.ptr = (char *)io_req;
+
+ stats = per_cpu_ptr(lport->dev_stats, get_cpu());
+ if (sc_cmd->sc_data_direction == DMA_FROM_DEVICE) {
+ io_req->io_req_flags = BNX2FC_READ;
+ stats->InputRequests++;
+ stats->InputBytes += io_req->data_xfer_len;
+ } else if (sc_cmd->sc_data_direction == DMA_TO_DEVICE) {
+ io_req->io_req_flags = BNX2FC_WRITE;
+ stats->OutputRequests++;
+ stats->OutputBytes += io_req->data_xfer_len;
+ } else {
+ io_req->io_req_flags = 0;
+ stats->ControlRequests++;
+ }
+ put_cpu();
+
+ xid = io_req->xid;
+
+ /* Build buffer descriptor list for firmware from sg list */
+ bnx2fc_build_bd_list_from_sg(io_req);
+
+ task_idx = xid / BNX2FC_TASKS_PER_PAGE;
+ index = xid % BNX2FC_TASKS_PER_PAGE;
+
+ /* Initialize task context for this IO request */
+ task_page = (struct fcoe_task_ctx_entry *) hba->task_ctx[task_idx];
+ task = &(task_page[index]);
+ bnx2fc_init_task(io_req, task);
+
+ spin_lock_bh(&tgt->tgt_lock);
+
+ if (tgt->flush_in_prog) {
+ printk(KERN_ERR PFX "Flush in progress..Host Busy\n");
+ kref_put(&io_req->refcount, bnx2fc_cmd_release);
+ spin_unlock_bh(&tgt->tgt_lock);
+ return -EAGAIN;
+ }
+
+ if (!test_bit(BNX2FC_FLAG_SESSION_READY, &tgt->flags)) {
+ printk(KERN_ERR PFX "Session not ready...post_io\n");
+ kref_put(&io_req->refcount, bnx2fc_cmd_release);
+ spin_unlock_bh(&tgt->tgt_lock);
+ return -EAGAIN;
+ }
+
+ /* Time IO req */
+ bnx2fc_cmd_timer_set(io_req, BNX2FC_IO_TIMEOUT);
+ /* Obtain free SQ entry */
+ bnx2fc_add_2_sq(tgt, xid);
+
+ /* Enqueue the io_req to active_cmd_queue */
+
+ io_req->on_active_queue = 1;
+ /* move io_req from pending_queue to active_queue */
+ list_add_tail(&io_req->link, &tgt->active_cmd_queue);
+
+ /* Ring doorbell */
+ bnx2fc_ring_doorbell(tgt);
+ spin_unlock_bh(&tgt->tgt_lock);
+ return 0;
+}
--- /dev/null
+/* bnx2fc_tgt.c: Broadcom NetXtreme II Linux FCoE offload driver.
+ * Handles operations such as session offload/upload etc, and manages
+ * session resources such as connection id and qp resources.
+ *
+ * Copyright (c) 2008 - 2010 Broadcom Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation.
+ *
+ * Written by: Bhanu Prakash Gollapudi (bprakash@broadcom.com)
+ */
+
+#include "bnx2fc.h"
+static void bnx2fc_upld_timer(unsigned long data);
+static void bnx2fc_ofld_timer(unsigned long data);
+static int bnx2fc_init_tgt(struct bnx2fc_rport *tgt,
+ struct fcoe_port *port,
+ struct fc_rport_priv *rdata);
+static u32 bnx2fc_alloc_conn_id(struct bnx2fc_hba *hba,
+ struct bnx2fc_rport *tgt);
+static int bnx2fc_alloc_session_resc(struct bnx2fc_hba *hba,
+ struct bnx2fc_rport *tgt);
+static void bnx2fc_free_session_resc(struct bnx2fc_hba *hba,
+ struct bnx2fc_rport *tgt);
+static void bnx2fc_free_conn_id(struct bnx2fc_hba *hba, u32 conn_id);
+
+static void bnx2fc_upld_timer(unsigned long data)
+{
+
+ struct bnx2fc_rport *tgt = (struct bnx2fc_rport *)data;
+
+ BNX2FC_TGT_DBG(tgt, "upld_timer - Upload compl not received!!\n");
+ /* fake upload completion */
+ clear_bit(BNX2FC_FLAG_OFFLOADED, &tgt->flags);
+ set_bit(BNX2FC_FLAG_UPLD_REQ_COMPL, &tgt->flags);
+ wake_up_interruptible(&tgt->upld_wait);
+}
+
+static void bnx2fc_ofld_timer(unsigned long data)
+{
+
+ struct bnx2fc_rport *tgt = (struct bnx2fc_rport *)data;
+
+ BNX2FC_TGT_DBG(tgt, "entered bnx2fc_ofld_timer\n");
+ /* NOTE: This function should never be called, as
+ * offload should never timeout
+ */
+ /*
+ * If the timer has expired, this session is dead
+ * Clear offloaded flag and logout of this device.
+ * Since OFFLOADED flag is cleared, this case
+ * will be considered as offload error and the
+ * port will be logged off, and conn_id, session
+ * resources are freed up in bnx2fc_offload_session
+ */
+ clear_bit(BNX2FC_FLAG_OFFLOADED, &tgt->flags);
+ set_bit(BNX2FC_FLAG_OFLD_REQ_CMPL, &tgt->flags);
+ wake_up_interruptible(&tgt->ofld_wait);
+}
+
+static void bnx2fc_offload_session(struct fcoe_port *port,
+ struct bnx2fc_rport *tgt,
+ struct fc_rport_priv *rdata)
+{
+ struct fc_lport *lport = rdata->local_port;
+ struct fc_rport *rport = rdata->rport;
+ struct bnx2fc_hba *hba = port->priv;
+ int rval;
+ int i = 0;
+
+ /* Initialize bnx2fc_rport */
+ /* NOTE: tgt is already bzero'd */
+ rval = bnx2fc_init_tgt(tgt, port, rdata);
+ if (rval) {
+ printk(KERN_ERR PFX "Failed to allocate conn id for "
+ "port_id (%6x)\n", rport->port_id);
+ goto ofld_err;
+ }
+
+ /* Allocate session resources */
+ rval = bnx2fc_alloc_session_resc(hba, tgt);
+ if (rval) {
+ printk(KERN_ERR PFX "Failed to allocate resources\n");
+ goto ofld_err;
+ }
+
+ /*
+ * Initialize FCoE session offload process.
+ * Upon completion of offload process add
+ * rport to list of rports
+ */
+retry_ofld:
+ clear_bit(BNX2FC_FLAG_OFLD_REQ_CMPL, &tgt->flags);
+ rval = bnx2fc_send_session_ofld_req(port, tgt);
+ if (rval) {
+ printk(KERN_ERR PFX "ofld_req failed\n");
+ goto ofld_err;
+ }
+
+ /*
+ * wait for the session is offloaded and enabled. 3 Secs
+ * should be ample time for this process to complete.
+ */
+ setup_timer(&tgt->ofld_timer, bnx2fc_ofld_timer, (unsigned long)tgt);
+ mod_timer(&tgt->ofld_timer, jiffies + BNX2FC_FW_TIMEOUT);
+
+ wait_event_interruptible(tgt->ofld_wait,
+ (test_bit(
+ BNX2FC_FLAG_OFLD_REQ_CMPL,
+ &tgt->flags)));
+ if (signal_pending(current))
+ flush_signals(current);
+
+ del_timer_sync(&tgt->ofld_timer);
+
+ if (!(test_bit(BNX2FC_FLAG_OFFLOADED, &tgt->flags))) {
+ if (test_and_clear_bit(BNX2FC_FLAG_CTX_ALLOC_FAILURE,
+ &tgt->flags)) {
+ BNX2FC_TGT_DBG(tgt, "ctx_alloc_failure, "
+ "retry ofld..%d\n", i++);
+ msleep_interruptible(1000);
+ if (i > 3) {
+ i = 0;
+ goto ofld_err;
+ }
+ goto retry_ofld;
+ }
+ goto ofld_err;
+ }
+ if (bnx2fc_map_doorbell(tgt)) {
+ printk(KERN_ERR PFX "map doorbell failed - no mem\n");
+ /* upload will take care of cleaning up sess resc */
+ lport->tt.rport_logoff(rdata);
+ }
+ return;
+
+ofld_err:
+ /* couldn't offload the session. log off from this rport */
+ BNX2FC_TGT_DBG(tgt, "bnx2fc_offload_session - offload error\n");
+ lport->tt.rport_logoff(rdata);
+ /* Free session resources */
+ bnx2fc_free_session_resc(hba, tgt);
+ if (tgt->fcoe_conn_id != -1)
+ bnx2fc_free_conn_id(hba, tgt->fcoe_conn_id);
+}
+
+void bnx2fc_flush_active_ios(struct bnx2fc_rport *tgt)
+{
+ struct bnx2fc_cmd *io_req;
+ struct list_head *list;
+ struct list_head *tmp;
+ int rc;
+ int i = 0;
+ BNX2FC_TGT_DBG(tgt, "Entered flush_active_ios - %d\n",
+ tgt->num_active_ios.counter);
+
+ spin_lock_bh(&tgt->tgt_lock);
+ tgt->flush_in_prog = 1;
+
+ list_for_each_safe(list, tmp, &tgt->active_cmd_queue) {
+ i++;
+ io_req = (struct bnx2fc_cmd *)list;
+ list_del_init(&io_req->link);
+ io_req->on_active_queue = 0;
+ BNX2FC_IO_DBG(io_req, "cmd_queue cleanup\n");
+
+ if (cancel_delayed_work(&io_req->timeout_work)) {
+ if (test_and_clear_bit(BNX2FC_FLAG_EH_ABORT,
+ &io_req->req_flags)) {
+ /* Handle eh_abort timeout */
+ BNX2FC_IO_DBG(io_req, "eh_abort for IO "
+ "cleaned up\n");
+ complete(&io_req->tm_done);
+ }
+ kref_put(&io_req->refcount,
+ bnx2fc_cmd_release); /* drop timer hold */
+ }
+
+ set_bit(BNX2FC_FLAG_IO_COMPL, &io_req->req_flags);
+ set_bit(BNX2FC_FLAG_IO_CLEANUP, &io_req->req_flags);
+ rc = bnx2fc_initiate_cleanup(io_req);
+ BUG_ON(rc);
+ }
+
+ list_for_each_safe(list, tmp, &tgt->els_queue) {
+ i++;
+ io_req = (struct bnx2fc_cmd *)list;
+ list_del_init(&io_req->link);
+ io_req->on_active_queue = 0;
+
+ BNX2FC_IO_DBG(io_req, "els_queue cleanup\n");
+
+ if (cancel_delayed_work(&io_req->timeout_work))
+ kref_put(&io_req->refcount,
+ bnx2fc_cmd_release); /* drop timer hold */
+
+ if ((io_req->cb_func) && (io_req->cb_arg)) {
+ io_req->cb_func(io_req->cb_arg);
+ io_req->cb_arg = NULL;
+ }
+
+ rc = bnx2fc_initiate_cleanup(io_req);
+ BUG_ON(rc);
+ }
+
+ list_for_each_safe(list, tmp, &tgt->io_retire_queue) {
+ i++;
+ io_req = (struct bnx2fc_cmd *)list;
+ list_del_init(&io_req->link);
+
+ BNX2FC_IO_DBG(io_req, "retire_queue flush\n");
+
+ if (cancel_delayed_work(&io_req->timeout_work))
+ kref_put(&io_req->refcount, bnx2fc_cmd_release);
+
+ clear_bit(BNX2FC_FLAG_ISSUE_RRQ, &io_req->req_flags);
+ }
+
+ BNX2FC_TGT_DBG(tgt, "IOs flushed = %d\n", i);
+ i = 0;
+ spin_unlock_bh(&tgt->tgt_lock);
+ /* wait for active_ios to go to 0 */
+ while ((tgt->num_active_ios.counter != 0) && (i++ < BNX2FC_WAIT_CNT))
+ msleep(25);
+ if (tgt->num_active_ios.counter != 0)
+ printk(KERN_ERR PFX "CLEANUP on port 0x%x:"
+ " active_ios = %d\n",
+ tgt->rdata->ids.port_id, tgt->num_active_ios.counter);
+ spin_lock_bh(&tgt->tgt_lock);
+ tgt->flush_in_prog = 0;
+ spin_unlock_bh(&tgt->tgt_lock);
+}
+
+static void bnx2fc_upload_session(struct fcoe_port *port,
+ struct bnx2fc_rport *tgt)
+{
+ struct bnx2fc_hba *hba = port->priv;
+
+ BNX2FC_TGT_DBG(tgt, "upload_session: active_ios = %d\n",
+ tgt->num_active_ios.counter);
+
+ /*
+ * Called with hba->hba_mutex held.
+ * This is a blocking call
+ */
+ clear_bit(BNX2FC_FLAG_UPLD_REQ_COMPL, &tgt->flags);
+ bnx2fc_send_session_disable_req(port, tgt);
+
+ /*
+ * wait for upload to complete. 3 Secs
+ * should be sufficient time for this process to complete.
+ */
+ setup_timer(&tgt->upld_timer, bnx2fc_upld_timer, (unsigned long)tgt);
+ mod_timer(&tgt->upld_timer, jiffies + BNX2FC_FW_TIMEOUT);
+
+ BNX2FC_TGT_DBG(tgt, "waiting for disable compl\n");
+ wait_event_interruptible(tgt->upld_wait,
+ (test_bit(
+ BNX2FC_FLAG_UPLD_REQ_COMPL,
+ &tgt->flags)));
+
+ if (signal_pending(current))
+ flush_signals(current);
+
+ del_timer_sync(&tgt->upld_timer);
+
+ /*
+ * traverse thru the active_q and tmf_q and cleanup
+ * IOs in these lists
+ */
+ BNX2FC_TGT_DBG(tgt, "flush/upload - disable wait flags = 0x%lx\n",
+ tgt->flags);
+ bnx2fc_flush_active_ios(tgt);
+
+ /* Issue destroy KWQE */
+ if (test_bit(BNX2FC_FLAG_DISABLED, &tgt->flags)) {
+ BNX2FC_TGT_DBG(tgt, "send destroy req\n");
+ clear_bit(BNX2FC_FLAG_UPLD_REQ_COMPL, &tgt->flags);
+ bnx2fc_send_session_destroy_req(hba, tgt);
+
+ /* wait for destroy to complete */
+ setup_timer(&tgt->upld_timer,
+ bnx2fc_upld_timer, (unsigned long)tgt);
+ mod_timer(&tgt->upld_timer, jiffies + BNX2FC_FW_TIMEOUT);
+
+ wait_event_interruptible(tgt->upld_wait,
+ (test_bit(
+ BNX2FC_FLAG_UPLD_REQ_COMPL,
+ &tgt->flags)));
+
+ if (!(test_bit(BNX2FC_FLAG_DESTROYED, &tgt->flags)))
+ printk(KERN_ERR PFX "ERROR!! destroy timed out\n");
+
+ BNX2FC_TGT_DBG(tgt, "destroy wait complete flags = 0x%lx\n",
+ tgt->flags);
+ if (signal_pending(current))
+ flush_signals(current);
+
+ del_timer_sync(&tgt->upld_timer);
+
+ } else
+ printk(KERN_ERR PFX "ERROR!! DISABLE req timed out, destroy"
+ " not sent to FW\n");
+
+ /* Free session resources */
+ spin_lock_bh(&tgt->cq_lock);
+ bnx2fc_free_session_resc(hba, tgt);
+ bnx2fc_free_conn_id(hba, tgt->fcoe_conn_id);
+ spin_unlock_bh(&tgt->cq_lock);
+}
+
+static int bnx2fc_init_tgt(struct bnx2fc_rport *tgt,
+ struct fcoe_port *port,
+ struct fc_rport_priv *rdata)
+{
+
+ struct fc_rport *rport = rdata->rport;
+ struct bnx2fc_hba *hba = port->priv;
+
+ tgt->rport = rport;
+ tgt->rdata = rdata;
+ tgt->port = port;
+
+ if (hba->num_ofld_sess >= BNX2FC_NUM_MAX_SESS) {
+ BNX2FC_TGT_DBG(tgt, "exceeded max sessions. logoff this tgt\n");
+ tgt->fcoe_conn_id = -1;
+ return -1;
+ }
+
+ tgt->fcoe_conn_id = bnx2fc_alloc_conn_id(hba, tgt);
+ if (tgt->fcoe_conn_id == -1)
+ return -1;
+
+ BNX2FC_TGT_DBG(tgt, "init_tgt - conn_id = 0x%x\n", tgt->fcoe_conn_id);
+
+ tgt->max_sqes = BNX2FC_SQ_WQES_MAX;
+ tgt->max_rqes = BNX2FC_RQ_WQES_MAX;
+ tgt->max_cqes = BNX2FC_CQ_WQES_MAX;
+
+ /* Initialize the toggle bit */
+ tgt->sq_curr_toggle_bit = 1;
+ tgt->cq_curr_toggle_bit = 1;
+ tgt->sq_prod_idx = 0;
+ tgt->cq_cons_idx = 0;
+ tgt->rq_prod_idx = 0x8000;
+ tgt->rq_cons_idx = 0;
+ atomic_set(&tgt->num_active_ios, 0);
+
+ tgt->work_time_slice = 2;
+
+ spin_lock_init(&tgt->tgt_lock);
+ spin_lock_init(&tgt->cq_lock);
+
+ /* Initialize active_cmd_queue list */
+ INIT_LIST_HEAD(&tgt->active_cmd_queue);
+
+ /* Initialize IO retire queue */
+ INIT_LIST_HEAD(&tgt->io_retire_queue);
+
+ INIT_LIST_HEAD(&tgt->els_queue);
+
+ /* Initialize active_tm_queue list */
+ INIT_LIST_HEAD(&tgt->active_tm_queue);
+
+ init_waitqueue_head(&tgt->ofld_wait);
+ init_waitqueue_head(&tgt->upld_wait);
+
+ return 0;
+}
+
+/**
+ * This event_callback is called after successful completion of libfc
+ * initiated target login. bnx2fc can proceed with initiating the session
+ * establishment.
+ */
+void bnx2fc_rport_event_handler(struct fc_lport *lport,
+ struct fc_rport_priv *rdata,
+ enum fc_rport_event event)
+{
+ struct fcoe_port *port = lport_priv(lport);
+ struct bnx2fc_hba *hba = port->priv;
+ struct fc_rport *rport = rdata->rport;
+ struct fc_rport_libfc_priv *rp;
+ struct bnx2fc_rport *tgt;
+ u32 port_id;
+
+ BNX2FC_HBA_DBG(lport, "rport_event_hdlr: event = %d, port_id = 0x%x\n",
+ event, rdata->ids.port_id);
+ switch (event) {
+ case RPORT_EV_READY:
+ if (!rport) {
+ printk(KERN_ALERT PFX "rport is NULL: ERROR!\n");
+ break;
+ }
+
+ rp = rport->dd_data;
+ if (rport->port_id == FC_FID_DIR_SERV) {
+ /*
+ * bnx2fc_rport structure doesnt exist for
+ * directory server.
+ * We should not come here, as lport will
+ * take care of fabric login
+ */
+ printk(KERN_ALERT PFX "%x - rport_event_handler ERROR\n",
+ rdata->ids.port_id);
+ break;
+ }
+
+ if (rdata->spp_type != FC_TYPE_FCP) {
+ BNX2FC_HBA_DBG(lport, "not FCP type target."
+ " not offloading\n");
+ break;
+ }
+ if (!(rdata->ids.roles & FC_RPORT_ROLE_FCP_TARGET)) {
+ BNX2FC_HBA_DBG(lport, "not FCP_TARGET"
+ " not offloading\n");
+ break;
+ }
+
+ /*
+ * Offlaod process is protected with hba mutex.
+ * Use the same mutex_lock for upload process too
+ */
+ mutex_lock(&hba->hba_mutex);
+ tgt = (struct bnx2fc_rport *)&rp[1];
+
+ /* This can happen when ADISC finds the same target */
+ if (test_bit(BNX2FC_FLAG_OFFLOADED, &tgt->flags)) {
+ BNX2FC_TGT_DBG(tgt, "already offloaded\n");
+ mutex_unlock(&hba->hba_mutex);
+ return;
+ }
+
+ /*
+ * Offload the session. This is a blocking call, and will
+ * wait until the session is offloaded.
+ */
+ bnx2fc_offload_session(port, tgt, rdata);
+
+ BNX2FC_TGT_DBG(tgt, "OFFLOAD num_ofld_sess = %d\n",
+ hba->num_ofld_sess);
+
+ if (test_bit(BNX2FC_FLAG_OFFLOADED, &tgt->flags)) {
+ /*
+ * Session is offloaded and enabled. Map
+ * doorbell register for this target
+ */
+ BNX2FC_TGT_DBG(tgt, "sess offloaded\n");
+ /* This counter is protected with hba mutex */
+ hba->num_ofld_sess++;
+
+ set_bit(BNX2FC_FLAG_SESSION_READY, &tgt->flags);
+ } else {
+ /*
+ * Offload or enable would have failed.
+ * In offload/enable completion path, the
+ * rport would have already been removed
+ */
+ BNX2FC_TGT_DBG(tgt, "Port is being logged off as "
+ "offloaded flag not set\n");
+ }
+ mutex_unlock(&hba->hba_mutex);
+ break;
+ case RPORT_EV_LOGO:
+ case RPORT_EV_FAILED:
+ case RPORT_EV_STOP:
+ port_id = rdata->ids.port_id;
+ if (port_id == FC_FID_DIR_SERV)
+ break;
+
+ if (!rport) {
+ printk(KERN_ALERT PFX "%x - rport not created Yet!!\n",
+ port_id);
+ break;
+ }
+ rp = rport->dd_data;
+ mutex_lock(&hba->hba_mutex);
+ /*
+ * Perform session upload. Note that rdata->peers is already
+ * removed from disc->rports list before we get this event.
+ */
+ tgt = (struct bnx2fc_rport *)&rp[1];
+
+ if (!(test_bit(BNX2FC_FLAG_OFFLOADED, &tgt->flags))) {
+ mutex_unlock(&hba->hba_mutex);
+ break;
+ }
+ clear_bit(BNX2FC_FLAG_SESSION_READY, &tgt->flags);
+
+ bnx2fc_upload_session(port, tgt);
+ hba->num_ofld_sess--;
+ BNX2FC_TGT_DBG(tgt, "UPLOAD num_ofld_sess = %d\n",
+ hba->num_ofld_sess);
+ /*
+ * Try to wake up the linkdown wait thread. If num_ofld_sess
+ * is 0, the waiting therad wakes up
+ */
+ if ((hba->wait_for_link_down) &&
+ (hba->num_ofld_sess == 0)) {
+ wake_up_interruptible(&hba->shutdown_wait);
+ }
+ if (test_bit(BNX2FC_FLAG_EXPL_LOGO, &tgt->flags)) {
+ printk(KERN_ERR PFX "Relogin to the tgt\n");
+ mutex_lock(&lport->disc.disc_mutex);
+ lport->tt.rport_login(rdata);
+ mutex_unlock(&lport->disc.disc_mutex);
+ }
+ mutex_unlock(&hba->hba_mutex);
+
+ break;
+
+ case RPORT_EV_NONE:
+ break;
+ }
+}
+
+/**
+ * bnx2fc_tgt_lookup() - Lookup a bnx2fc_rport by port_id
+ *
+ * @port: fcoe_port struct to lookup the target port on
+ * @port_id: The remote port ID to look up
+ */
+struct bnx2fc_rport *bnx2fc_tgt_lookup(struct fcoe_port *port,
+ u32 port_id)
+{
+ struct bnx2fc_hba *hba = port->priv;
+ struct bnx2fc_rport *tgt;
+ struct fc_rport_priv *rdata;
+ int i;
+
+ for (i = 0; i < BNX2FC_NUM_MAX_SESS; i++) {
+ tgt = hba->tgt_ofld_list[i];
+ if ((tgt) && (tgt->port == port)) {
+ rdata = tgt->rdata;
+ if (rdata->ids.port_id == port_id) {
+ if (rdata->rp_state != RPORT_ST_DELETE) {
+ BNX2FC_TGT_DBG(tgt, "rport "
+ "obtained\n");
+ return tgt;
+ } else {
+ printk(KERN_ERR PFX "rport 0x%x "
+ "is in DELETED state\n",
+ rdata->ids.port_id);
+ return NULL;
+ }
+ }
+ }
+ }
+ return NULL;
+}
+
+
+/**
+ * bnx2fc_alloc_conn_id - allocates FCOE Connection id
+ *
+ * @hba: pointer to adapter structure
+ * @tgt: pointer to bnx2fc_rport structure
+ */
+static u32 bnx2fc_alloc_conn_id(struct bnx2fc_hba *hba,
+ struct bnx2fc_rport *tgt)
+{
+ u32 conn_id, next;
+
+ /* called with hba mutex held */
+
+ /*
+ * tgt_ofld_list access is synchronized using
+ * both hba mutex and hba lock. Atleast hba mutex or
+ * hba lock needs to be held for read access.
+ */
+
+ spin_lock_bh(&hba->hba_lock);
+ next = hba->next_conn_id;
+ conn_id = hba->next_conn_id++;
+ if (hba->next_conn_id == BNX2FC_NUM_MAX_SESS)
+ hba->next_conn_id = 0;
+
+ while (hba->tgt_ofld_list[conn_id] != NULL) {
+ conn_id++;
+ if (conn_id == BNX2FC_NUM_MAX_SESS)
+ conn_id = 0;
+
+ if (conn_id == next) {
+ /* No free conn_ids are available */
+ spin_unlock_bh(&hba->hba_lock);
+ return -1;
+ }
+ }
+ hba->tgt_ofld_list[conn_id] = tgt;
+ tgt->fcoe_conn_id = conn_id;
+ spin_unlock_bh(&hba->hba_lock);
+ return conn_id;
+}
+
+static void bnx2fc_free_conn_id(struct bnx2fc_hba *hba, u32 conn_id)
+{
+ /* called with hba mutex held */
+ spin_lock_bh(&hba->hba_lock);
+ hba->tgt_ofld_list[conn_id] = NULL;
+ hba->next_conn_id = conn_id;
+ spin_unlock_bh(&hba->hba_lock);
+}
+
+/**
+ *bnx2fc_alloc_session_resc - Allocate qp resources for the session
+ *
+ */
+static int bnx2fc_alloc_session_resc(struct bnx2fc_hba *hba,
+ struct bnx2fc_rport *tgt)
+{
+ dma_addr_t page;
+ int num_pages;
+ u32 *pbl;
+
+ /* Allocate and map SQ */
+ tgt->sq_mem_size = tgt->max_sqes * BNX2FC_SQ_WQE_SIZE;
+ tgt->sq_mem_size = (tgt->sq_mem_size + (PAGE_SIZE - 1)) & PAGE_MASK;
+
+ tgt->sq = dma_alloc_coherent(&hba->pcidev->dev, tgt->sq_mem_size,
+ &tgt->sq_dma, GFP_KERNEL);
+ if (!tgt->sq) {
+ printk(KERN_ALERT PFX "unable to allocate SQ memory %d\n",
+ tgt->sq_mem_size);
+ goto mem_alloc_failure;
+ }
+ memset(tgt->sq, 0, tgt->sq_mem_size);
+
+ /* Allocate and map CQ */
+ tgt->cq_mem_size = tgt->max_cqes * BNX2FC_CQ_WQE_SIZE;
+ tgt->cq_mem_size = (tgt->cq_mem_size + (PAGE_SIZE - 1)) & PAGE_MASK;
+
+ tgt->cq = dma_alloc_coherent(&hba->pcidev->dev, tgt->cq_mem_size,
+ &tgt->cq_dma, GFP_KERNEL);
+ if (!tgt->cq) {
+ printk(KERN_ALERT PFX "unable to allocate CQ memory %d\n",
+ tgt->cq_mem_size);
+ goto mem_alloc_failure;
+ }
+ memset(tgt->cq, 0, tgt->cq_mem_size);
+
+ /* Allocate and map RQ and RQ PBL */
+ tgt->rq_mem_size = tgt->max_rqes * BNX2FC_RQ_WQE_SIZE;
+ tgt->rq_mem_size = (tgt->rq_mem_size + (PAGE_SIZE - 1)) & PAGE_MASK;
+
+ tgt->rq = dma_alloc_coherent(&hba->pcidev->dev, tgt->rq_mem_size,
+ &tgt->rq_dma, GFP_KERNEL);
+ if (!tgt->rq) {
+ printk(KERN_ALERT PFX "unable to allocate RQ memory %d\n",
+ tgt->rq_mem_size);
+ goto mem_alloc_failure;
+ }
+ memset(tgt->rq, 0, tgt->rq_mem_size);
+
+ tgt->rq_pbl_size = (tgt->rq_mem_size / PAGE_SIZE) * sizeof(void *);
+ tgt->rq_pbl_size = (tgt->rq_pbl_size + (PAGE_SIZE - 1)) & PAGE_MASK;
+
+ tgt->rq_pbl = dma_alloc_coherent(&hba->pcidev->dev, tgt->rq_pbl_size,
+ &tgt->rq_pbl_dma, GFP_KERNEL);
+ if (!tgt->rq_pbl) {
+ printk(KERN_ALERT PFX "unable to allocate RQ PBL %d\n",
+ tgt->rq_pbl_size);
+ goto mem_alloc_failure;
+ }
+
+ memset(tgt->rq_pbl, 0, tgt->rq_pbl_size);
+ num_pages = tgt->rq_mem_size / PAGE_SIZE;
+ page = tgt->rq_dma;
+ pbl = (u32 *)tgt->rq_pbl;
+
+ while (num_pages--) {
+ *pbl = (u32)page;
+ pbl++;
+ *pbl = (u32)((u64)page >> 32);
+ pbl++;
+ page += PAGE_SIZE;
+ }
+
+ /* Allocate and map XFERQ */
+ tgt->xferq_mem_size = tgt->max_sqes * BNX2FC_XFERQ_WQE_SIZE;
+ tgt->xferq_mem_size = (tgt->xferq_mem_size + (PAGE_SIZE - 1)) &
+ PAGE_MASK;
+
+ tgt->xferq = dma_alloc_coherent(&hba->pcidev->dev, tgt->xferq_mem_size,
+ &tgt->xferq_dma, GFP_KERNEL);
+ if (!tgt->xferq) {
+ printk(KERN_ALERT PFX "unable to allocate XFERQ %d\n",
+ tgt->xferq_mem_size);
+ goto mem_alloc_failure;
+ }
+ memset(tgt->xferq, 0, tgt->xferq_mem_size);
+
+ /* Allocate and map CONFQ & CONFQ PBL */
+ tgt->confq_mem_size = tgt->max_sqes * BNX2FC_CONFQ_WQE_SIZE;
+ tgt->confq_mem_size = (tgt->confq_mem_size + (PAGE_SIZE - 1)) &
+ PAGE_MASK;
+
+ tgt->confq = dma_alloc_coherent(&hba->pcidev->dev, tgt->confq_mem_size,
+ &tgt->confq_dma, GFP_KERNEL);
+ if (!tgt->confq) {
+ printk(KERN_ALERT PFX "unable to allocate CONFQ %d\n",
+ tgt->confq_mem_size);
+ goto mem_alloc_failure;
+ }
+ memset(tgt->confq, 0, tgt->confq_mem_size);
+
+ tgt->confq_pbl_size =
+ (tgt->confq_mem_size / PAGE_SIZE) * sizeof(void *);
+ tgt->confq_pbl_size =
+ (tgt->confq_pbl_size + (PAGE_SIZE - 1)) & PAGE_MASK;
+
+ tgt->confq_pbl = dma_alloc_coherent(&hba->pcidev->dev,
+ tgt->confq_pbl_size,
+ &tgt->confq_pbl_dma, GFP_KERNEL);
+ if (!tgt->confq_pbl) {
+ printk(KERN_ALERT PFX "unable to allocate CONFQ PBL %d\n",
+ tgt->confq_pbl_size);
+ goto mem_alloc_failure;
+ }
+
+ memset(tgt->confq_pbl, 0, tgt->confq_pbl_size);
+ num_pages = tgt->confq_mem_size / PAGE_SIZE;
+ page = tgt->confq_dma;
+ pbl = (u32 *)tgt->confq_pbl;
+
+ while (num_pages--) {
+ *pbl = (u32)page;
+ pbl++;
+ *pbl = (u32)((u64)page >> 32);
+ pbl++;
+ page += PAGE_SIZE;
+ }
+
+ /* Allocate and map ConnDB */
+ tgt->conn_db_mem_size = sizeof(struct fcoe_conn_db);
+
+ tgt->conn_db = dma_alloc_coherent(&hba->pcidev->dev,
+ tgt->conn_db_mem_size,
+ &tgt->conn_db_dma, GFP_KERNEL);
+ if (!tgt->conn_db) {
+ printk(KERN_ALERT PFX "unable to allocate conn_db %d\n",
+ tgt->conn_db_mem_size);
+ goto mem_alloc_failure;
+ }
+ memset(tgt->conn_db, 0, tgt->conn_db_mem_size);
+
+
+ /* Allocate and map LCQ */
+ tgt->lcq_mem_size = (tgt->max_sqes + 8) * BNX2FC_SQ_WQE_SIZE;
+ tgt->lcq_mem_size = (tgt->lcq_mem_size + (PAGE_SIZE - 1)) &
+ PAGE_MASK;
+
+ tgt->lcq = dma_alloc_coherent(&hba->pcidev->dev, tgt->lcq_mem_size,
+ &tgt->lcq_dma, GFP_KERNEL);
+
+ if (!tgt->lcq) {
+ printk(KERN_ALERT PFX "unable to allocate lcq %d\n",
+ tgt->lcq_mem_size);
+ goto mem_alloc_failure;
+ }
+ memset(tgt->lcq, 0, tgt->lcq_mem_size);
+
+ /* Arm CQ */
+ tgt->conn_db->cq_arm.lo = -1;
+ tgt->conn_db->rq_prod = 0x8000;
+
+ return 0;
+
+mem_alloc_failure:
+ bnx2fc_free_session_resc(hba, tgt);
+ bnx2fc_free_conn_id(hba, tgt->fcoe_conn_id);
+ return -ENOMEM;
+}
+
+/**
+ * bnx2i_free_session_resc - free qp resources for the session
+ *
+ * @hba: adapter structure pointer
+ * @tgt: bnx2fc_rport structure pointer
+ *
+ * Free QP resources - SQ/RQ/CQ/XFERQ memory and PBL
+ */
+static void bnx2fc_free_session_resc(struct bnx2fc_hba *hba,
+ struct bnx2fc_rport *tgt)
+{
+ BNX2FC_TGT_DBG(tgt, "Freeing up session resources\n");
+
+ if (tgt->ctx_base) {
+ iounmap(tgt->ctx_base);
+ tgt->ctx_base = NULL;
+ }
+ /* Free LCQ */
+ if (tgt->lcq) {
+ dma_free_coherent(&hba->pcidev->dev, tgt->lcq_mem_size,
+ tgt->lcq, tgt->lcq_dma);
+ tgt->lcq = NULL;
+ }
+ /* Free connDB */
+ if (tgt->conn_db) {
+ dma_free_coherent(&hba->pcidev->dev, tgt->conn_db_mem_size,
+ tgt->conn_db, tgt->conn_db_dma);
+ tgt->conn_db = NULL;
+ }
+ /* Free confq and confq pbl */
+ if (tgt->confq_pbl) {
+ dma_free_coherent(&hba->pcidev->dev, tgt->confq_pbl_size,
+ tgt->confq_pbl, tgt->confq_pbl_dma);
+ tgt->confq_pbl = NULL;
+ }
+ if (tgt->confq) {
+ dma_free_coherent(&hba->pcidev->dev, tgt->confq_mem_size,
+ tgt->confq, tgt->confq_dma);
+ tgt->confq = NULL;
+ }
+ /* Free XFERQ */
+ if (tgt->xferq) {
+ dma_free_coherent(&hba->pcidev->dev, tgt->xferq_mem_size,
+ tgt->xferq, tgt->xferq_dma);
+ tgt->xferq = NULL;
+ }
+ /* Free RQ PBL and RQ */
+ if (tgt->rq_pbl) {
+ dma_free_coherent(&hba->pcidev->dev, tgt->rq_pbl_size,
+ tgt->rq_pbl, tgt->rq_pbl_dma);
+ tgt->rq_pbl = NULL;
+ }
+ if (tgt->rq) {
+ dma_free_coherent(&hba->pcidev->dev, tgt->rq_mem_size,
+ tgt->rq, tgt->rq_dma);
+ tgt->rq = NULL;
+ }
+ /* Free CQ */
+ if (tgt->cq) {
+ dma_free_coherent(&hba->pcidev->dev, tgt->cq_mem_size,
+ tgt->cq, tgt->cq_dma);
+ tgt->cq = NULL;
+ }
+ /* Free SQ */
+ if (tgt->sq) {
+ dma_free_coherent(&hba->pcidev->dev, tgt->sq_mem_size,
+ tgt->sq, tgt->sq_dma);
+ tgt->sq = NULL;
+ }
+}
#define ADAPTER_STATE_LINK_DOWN 2
#define ADAPTER_STATE_INIT_FAILED 31
unsigned int mtu_supported;
- #define BNX2I_MAX_MTU_SUPPORTED 1500
+ #define BNX2I_MAX_MTU_SUPPORTED 9000
struct Scsi_Host *shost;
struct iscsi_task *mtask);
extern int bnx2i_send_iscsi_tmf(struct bnx2i_conn *conn,
struct iscsi_task *mtask);
+extern int bnx2i_send_iscsi_text(struct bnx2i_conn *conn,
+ struct iscsi_task *mtask);
extern int bnx2i_send_iscsi_scsicmd(struct bnx2i_conn *conn,
struct bnx2i_cmd *cmnd);
extern int bnx2i_send_iscsi_nopout(struct bnx2i_conn *conn,
return 0;
}
+/**
+ * bnx2i_send_iscsi_text - post iSCSI text WQE to hardware
+ * @conn: iscsi connection
+ * @mtask: driver command structure which is requesting
+ * a WQE to sent to chip for further processing
+ *
+ * prepare and post an iSCSI Text request WQE to CNIC firmware
+ */
+int bnx2i_send_iscsi_text(struct bnx2i_conn *bnx2i_conn,
+ struct iscsi_task *mtask)
+{
+ struct bnx2i_cmd *bnx2i_cmd;
+ struct bnx2i_text_request *text_wqe;
+ struct iscsi_text *text_hdr;
+ u32 dword;
+
+ bnx2i_cmd = (struct bnx2i_cmd *)mtask->dd_data;
+ text_hdr = (struct iscsi_text *)mtask->hdr;
+ text_wqe = (struct bnx2i_text_request *) bnx2i_conn->ep->qp.sq_prod_qe;
+
+ memset(text_wqe, 0, sizeof(struct bnx2i_text_request));
+
+ text_wqe->op_code = text_hdr->opcode;
+ text_wqe->op_attr = text_hdr->flags;
+ text_wqe->data_length = ntoh24(text_hdr->dlength);
+ text_wqe->itt = mtask->itt |
+ (ISCSI_TASK_TYPE_MPATH << ISCSI_TEXT_REQUEST_TYPE_SHIFT);
+ text_wqe->ttt = be32_to_cpu(text_hdr->ttt);
+
+ text_wqe->cmd_sn = be32_to_cpu(text_hdr->cmdsn);
+
+ text_wqe->resp_bd_list_addr_lo = (u32) bnx2i_conn->gen_pdu.resp_bd_dma;
+ text_wqe->resp_bd_list_addr_hi =
+ (u32) ((u64) bnx2i_conn->gen_pdu.resp_bd_dma >> 32);
+
+ dword = ((1 << ISCSI_TEXT_REQUEST_NUM_RESP_BDS_SHIFT) |
+ (bnx2i_conn->gen_pdu.resp_buf_size <<
+ ISCSI_TEXT_REQUEST_RESP_BUFFER_LENGTH_SHIFT));
+ text_wqe->resp_buffer = dword;
+ text_wqe->bd_list_addr_lo = (u32) bnx2i_conn->gen_pdu.req_bd_dma;
+ text_wqe->bd_list_addr_hi =
+ (u32) ((u64) bnx2i_conn->gen_pdu.req_bd_dma >> 32);
+ text_wqe->num_bds = 1;
+ text_wqe->cq_index = 0; /* CQ# used for completion, 5771x only */
+
+ bnx2i_ring_dbell_update_sq_params(bnx2i_conn, 1);
+ return 0;
+}
+
+
/**
* bnx2i_send_iscsi_scsicmd - post iSCSI scsicmd request WQE to hardware
* @conn: iscsi connection
bnx2i_cmd = (struct bnx2i_cmd *)task->dd_data;
nopout_hdr = (struct iscsi_nopout *)task->hdr;
nopout_wqe = (struct bnx2i_nop_out_request *)ep->qp.sq_prod_qe;
+
+ memset(nopout_wqe, 0x00, sizeof(struct bnx2i_nop_out_request));
+
nopout_wqe->op_code = nopout_hdr->opcode;
nopout_wqe->op_attr = ISCSI_FLAG_CMD_FINAL;
memcpy(nopout_wqe->lun, nopout_hdr->lun, 8);
if (test_bit(BNX2I_NX2_DEV_57710, &ep->hba->cnic_dev_type)) {
- u32 tmp = nopout_hdr->lun[0];
+ u32 tmp = nopout_wqe->lun[0];
/* 57710 requires LUN field to be swapped */
- nopout_hdr->lun[0] = nopout_hdr->lun[1];
- nopout_hdr->lun[1] = tmp;
+ nopout_wqe->lun[0] = nopout_wqe->lun[1];
+ nopout_wqe->lun[1] = tmp;
}
nopout_wqe->itt = ((u16)task->itt |
return 0;
}
+
+/**
+ * bnx2i_process_text_resp - this function handles iscsi text response
+ * @session: iscsi session pointer
+ * @bnx2i_conn: iscsi connection pointer
+ * @cqe: pointer to newly DMA'ed CQE entry for processing
+ *
+ * process iSCSI Text Response CQE& complete it to open-iscsi user daemon
+ */
+static int bnx2i_process_text_resp(struct iscsi_session *session,
+ struct bnx2i_conn *bnx2i_conn,
+ struct cqe *cqe)
+{
+ struct iscsi_conn *conn = bnx2i_conn->cls_conn->dd_data;
+ struct iscsi_task *task;
+ struct bnx2i_text_response *text;
+ struct iscsi_text_rsp *resp_hdr;
+ int pld_len;
+ int pad_len;
+
+ text = (struct bnx2i_text_response *) cqe;
+ spin_lock(&session->lock);
+ task = iscsi_itt_to_task(conn, text->itt & ISCSI_LOGIN_RESPONSE_INDEX);
+ if (!task)
+ goto done;
+
+ resp_hdr = (struct iscsi_text_rsp *)&bnx2i_conn->gen_pdu.resp_hdr;
+ memset(resp_hdr, 0, sizeof(struct iscsi_hdr));
+ resp_hdr->opcode = text->op_code;
+ resp_hdr->flags = text->response_flags;
+ resp_hdr->hlength = 0;
+
+ hton24(resp_hdr->dlength, text->data_length);
+ resp_hdr->itt = task->hdr->itt;
+ resp_hdr->ttt = cpu_to_be32(text->ttt);
+ resp_hdr->statsn = task->hdr->exp_statsn;
+ resp_hdr->exp_cmdsn = cpu_to_be32(text->exp_cmd_sn);
+ resp_hdr->max_cmdsn = cpu_to_be32(text->max_cmd_sn);
+ pld_len = text->data_length;
+ bnx2i_conn->gen_pdu.resp_wr_ptr = bnx2i_conn->gen_pdu.resp_buf +
+ pld_len;
+ pad_len = 0;
+ if (pld_len & 0x3)
+ pad_len = 4 - (pld_len % 4);
+
+ if (pad_len) {
+ int i = 0;
+ for (i = 0; i < pad_len; i++) {
+ bnx2i_conn->gen_pdu.resp_wr_ptr[0] = 0;
+ bnx2i_conn->gen_pdu.resp_wr_ptr++;
+ }
+ }
+ __iscsi_complete_pdu(conn, (struct iscsi_hdr *)resp_hdr,
+ bnx2i_conn->gen_pdu.resp_buf,
+ bnx2i_conn->gen_pdu.resp_wr_ptr -
+ bnx2i_conn->gen_pdu.resp_buf);
+done:
+ spin_unlock(&session->lock);
+ return 0;
+}
+
+
/**
* bnx2i_process_tmf_resp - this function handles iscsi TMF response
* @session: iscsi session pointer
bnx2i_process_tmf_resp(session, bnx2i_conn,
qp->cq_cons_qe);
break;
+ case ISCSI_OP_TEXT_RSP:
+ bnx2i_process_text_resp(session, bnx2i_conn,
+ qp->cq_cons_qe);
+ break;
case ISCSI_OP_LOGOUT_RSP:
bnx2i_process_logout_resp(session, bnx2i_conn,
qp->cq_cons_qe);
static u32 adapter_count;
#define DRV_MODULE_NAME "bnx2i"
-#define DRV_MODULE_VERSION "2.6.2.2"
-#define DRV_MODULE_RELDATE "Nov 23, 2010"
+#define DRV_MODULE_VERSION "2.6.2.3"
+#define DRV_MODULE_RELDATE "Dec 31, 2010"
static char version[] __devinitdata =
"Broadcom NetXtreme II iSCSI Driver " DRV_MODULE_NAME \
MODULE_AUTHOR("Anil Veerabhadrappa <anilgv@broadcom.com> and "
"Eddie Wai <eddie.wai@broadcom.com>");
-MODULE_DESCRIPTION("Broadcom NetXtreme II BCM5706/5708/5709/57710/57711"
+MODULE_DESCRIPTION("Broadcom NetXtreme II BCM5706/5708/5709/57710/57711/57712"
" iSCSI Driver");
MODULE_LICENSE("GPL");
MODULE_VERSION(DRV_MODULE_VERSION);
(hba->pci_did == PCI_DEVICE_ID_NX2_5709S)) {
set_bit(BNX2I_NX2_DEV_5709, &hba->cnic_dev_type);
hba->mail_queue_access = BNX2I_MQ_BIN_MODE;
- } else if (hba->pci_did == PCI_DEVICE_ID_NX2_57710 ||
- hba->pci_did == PCI_DEVICE_ID_NX2_57711 ||
- hba->pci_did == PCI_DEVICE_ID_NX2_57711E)
+ } else if (hba->pci_did == PCI_DEVICE_ID_NX2_57710 ||
+ hba->pci_did == PCI_DEVICE_ID_NX2_57711 ||
+ hba->pci_did == PCI_DEVICE_ID_NX2_57711E ||
+ hba->pci_did == PCI_DEVICE_ID_NX2_57712 ||
+ hba->pci_did == PCI_DEVICE_ID_NX2_57712E)
set_bit(BNX2I_NX2_DEV_57710, &hba->cnic_dev_type);
else
printk(KERN_ALERT "bnx2i: unknown device, 0x%x\n",
struct bnx2i_hba *hba = handle;
int i = HZ;
+ if (!hba->cnic->max_iscsi_conn) {
+ printk(KERN_ALERT "bnx2i: dev %s does not support "
+ "iSCSI\n", hba->netdev->name);
+
+ if (test_bit(BNX2I_CNIC_REGISTERED, &hba->reg_with_cnic)) {
+ mutex_lock(&bnx2i_dev_lock);
+ list_del_init(&hba->link);
+ adapter_count--;
+ hba->cnic->unregister_device(hba->cnic, CNIC_ULP_ISCSI);
+ clear_bit(BNX2I_CNIC_REGISTERED, &hba->reg_with_cnic);
+ mutex_unlock(&bnx2i_dev_lock);
+ bnx2i_free_hba(hba);
+ }
+ return;
+ }
bnx2i_send_fw_iscsi_init_msg(hba);
while (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state) && i--)
msleep(BNX2I_INIT_POLL_TIME);
case ISCSI_OP_SCSI_TMFUNC:
rc = bnx2i_send_iscsi_tmf(bnx2i_conn, task);
break;
+ case ISCSI_OP_TEXT:
+ rc = bnx2i_send_iscsi_text(bnx2i_conn, task);
+ break;
default:
iscsi_conn_printk(KERN_ALERT, bnx2i_conn->cls_conn->dd_data,
"send_gen: unsupported op 0x%x\n",
/**
- * bnx2i_conn_get_param - return iscsi connection parameter to caller
- * @cls_conn: pointer to iscsi cls conn
+ * bnx2i_ep_get_param - return iscsi ep parameter to caller
+ * @ep: pointer to iscsi endpoint
* @param: parameter type identifier
* @buf: buffer pointer
*
- * returns iSCSI connection parameters
+ * returns iSCSI ep parameters
*/
-static int bnx2i_conn_get_param(struct iscsi_cls_conn *cls_conn,
- enum iscsi_param param, char *buf)
+static int bnx2i_ep_get_param(struct iscsi_endpoint *ep,
+ enum iscsi_param param, char *buf)
{
- struct iscsi_conn *conn = cls_conn->dd_data;
- struct bnx2i_conn *bnx2i_conn = conn->dd_data;
- int len = 0;
+ struct bnx2i_endpoint *bnx2i_ep = ep->dd_data;
+ struct bnx2i_hba *hba = bnx2i_ep->hba;
+ int len = -ENOTCONN;
- if (!(bnx2i_conn && bnx2i_conn->ep && bnx2i_conn->ep->hba))
- goto out;
+ if (!hba)
+ return -ENOTCONN;
switch (param) {
case ISCSI_PARAM_CONN_PORT:
- mutex_lock(&bnx2i_conn->ep->hba->net_dev_lock);
- if (bnx2i_conn->ep->cm_sk)
- len = sprintf(buf, "%hu\n",
- bnx2i_conn->ep->cm_sk->dst_port);
- mutex_unlock(&bnx2i_conn->ep->hba->net_dev_lock);
+ mutex_lock(&hba->net_dev_lock);
+ if (bnx2i_ep->cm_sk)
+ len = sprintf(buf, "%hu\n", bnx2i_ep->cm_sk->dst_port);
+ mutex_unlock(&hba->net_dev_lock);
break;
case ISCSI_PARAM_CONN_ADDRESS:
- mutex_lock(&bnx2i_conn->ep->hba->net_dev_lock);
- if (bnx2i_conn->ep->cm_sk)
- len = sprintf(buf, "%pI4\n",
- &bnx2i_conn->ep->cm_sk->dst_ip);
- mutex_unlock(&bnx2i_conn->ep->hba->net_dev_lock);
+ mutex_lock(&hba->net_dev_lock);
+ if (bnx2i_ep->cm_sk)
+ len = sprintf(buf, "%pI4\n", &bnx2i_ep->cm_sk->dst_ip);
+ mutex_unlock(&hba->net_dev_lock);
break;
default:
- return iscsi_conn_get_param(cls_conn, param, buf);
+ return -ENOSYS;
}
-out:
+
return len;
}
cnic_dev_10g = 1;
switch (bnx2i_ep->state) {
- case EP_STATE_CONNECT_FAILED:
case EP_STATE_CLEANUP_FAILED:
case EP_STATE_OFLD_FAILED:
case EP_STATE_DISCONN_TIMEDOUT:
ret = 0;
break;
case EP_STATE_CONNECT_START:
+ case EP_STATE_CONNECT_FAILED:
case EP_STATE_CONNECT_COMPL:
case EP_STATE_ULP_UPDATE_START:
case EP_STATE_ULP_UPDATE_COMPL:
.name = "bnx2i",
.caps = CAP_RECOVERY_L0 | CAP_HDRDGST |
CAP_MULTI_R2T | CAP_DATADGST |
- CAP_DATA_PATH_OFFLOAD,
+ CAP_DATA_PATH_OFFLOAD |
+ CAP_TEXT_NEGO,
.param_mask = ISCSI_MAX_RECV_DLENGTH |
ISCSI_MAX_XMIT_DLENGTH |
ISCSI_HDRDGST_EN |
.bind_conn = bnx2i_conn_bind,
.destroy_conn = bnx2i_conn_destroy,
.set_param = iscsi_set_param,
- .get_conn_param = bnx2i_conn_get_param,
+ .get_conn_param = iscsi_conn_get_param,
.get_session_param = iscsi_session_get_param,
.get_host_param = bnx2i_host_get_param,
.start_conn = bnx2i_conn_start,
.xmit_task = bnx2i_task_xmit,
.get_stats = bnx2i_conn_get_stats,
/* TCP connect - disconnect - option-2 interface calls */
+ .get_ep_param = bnx2i_ep_get_param,
.ep_connect = bnx2i_ep_connect,
.ep_poll = bnx2i_ep_poll,
.ep_disconnect = bnx2i_ep_disconnect,
/* owner and name should be set already */
.caps = CAP_RECOVERY_L0 | CAP_MULTI_R2T | CAP_HDRDGST
| CAP_DATADGST | CAP_DIGEST_OFFLOAD |
- CAP_PADDING_OFFLOAD,
+ CAP_PADDING_OFFLOAD | CAP_TEXT_NEGO,
.param_mask = ISCSI_MAX_RECV_DLENGTH | ISCSI_MAX_XMIT_DLENGTH |
ISCSI_HDRDGST_EN | ISCSI_DATADGST_EN |
ISCSI_INITIAL_R2T_EN | ISCSI_MAX_R2T |
.destroy_conn = iscsi_tcp_conn_teardown,
.start_conn = iscsi_conn_start,
.stop_conn = iscsi_conn_stop,
- .get_conn_param = cxgbi_get_conn_param,
+ .get_conn_param = iscsi_conn_get_param,
.set_param = cxgbi_set_conn_param,
.get_stats = cxgbi_get_conn_stats,
/* pdu xmit req from user space */
.xmit_pdu = cxgbi_conn_xmit_pdu,
.parse_pdu_itt = cxgbi_parse_pdu_itt,
/* TCP connect/disconnect */
+ .get_ep_param = cxgbi_get_ep_param,
.ep_connect = cxgbi_ep_connect,
.ep_poll = cxgbi_ep_poll,
.ep_disconnect = cxgbi_ep_disconnect,
csk, idx, npods, gl);
for (i = 0; i < npods; i++, idx++, pm_addr += PPOD_SIZE) {
- struct sk_buff *skb = ddp->gl_skb[idx];
+ struct sk_buff *skb = alloc_wr(sizeof(struct ulp_mem_io) +
+ PPOD_SIZE, 0, GFP_ATOMIC);
- /* hold on to the skb until we clear the ddp mapping */
- skb_get(skb);
+ if (!skb)
+ return -ENOMEM;
ulp_mem_io_set_hdr(skb, pm_addr);
cxgbi_ddp_ppod_set((struct cxgbi_pagepod *)(skb->head +
cdev, idx, npods, tag);
for (i = 0; i < npods; i++, idx++, pm_addr += PPOD_SIZE) {
- struct sk_buff *skb = ddp->gl_skb[idx];
+ struct sk_buff *skb = alloc_wr(sizeof(struct ulp_mem_io) +
+ PPOD_SIZE, 0, GFP_ATOMIC);
if (!skb) {
- pr_err("tag 0x%x, 0x%x, %d/%u, skb NULL.\n",
+ pr_err("tag 0x%x, 0x%x, %d/%u, skb OOM.\n",
tag, idx, i, npods);
continue;
}
- ddp->gl_skb[idx] = NULL;
- memset(skb->head + sizeof(struct ulp_mem_io), 0, PPOD_SIZE);
ulp_mem_io_set_hdr(skb, pm_addr);
skb->priority = CPL_PRIORITY_CONTROL;
cxgb3_ofld_send(cdev->lldev, skb);
}
}
-static void ddp_free_gl_skb(struct cxgbi_ddp_info *ddp, int idx, int cnt)
-{
- int i;
-
- log_debug(1 << CXGBI_DBG_DDP,
- "ddp 0x%p, idx %d, cnt %d.\n", ddp, idx, cnt);
-
- for (i = 0; i < cnt; i++, idx++)
- if (ddp->gl_skb[idx]) {
- kfree_skb(ddp->gl_skb[idx]);
- ddp->gl_skb[idx] = NULL;
- }
-}
-
-static int ddp_alloc_gl_skb(struct cxgbi_ddp_info *ddp, int idx,
- int cnt, gfp_t gfp)
-{
- int i;
-
- log_debug(1 << CXGBI_DBG_DDP,
- "ddp 0x%p, idx %d, cnt %d.\n", ddp, idx, cnt);
-
- for (i = 0; i < cnt; i++) {
- struct sk_buff *skb = alloc_wr(sizeof(struct ulp_mem_io) +
- PPOD_SIZE, 0, gfp);
- if (skb)
- ddp->gl_skb[idx + i] = skb;
- else {
- ddp_free_gl_skb(ddp, idx, i);
- return -ENOMEM;
- }
- }
- return 0;
-}
-
static int ddp_setup_conn_pgidx(struct cxgbi_sock *csk,
unsigned int tid, int pg_idx, bool reply)
{
}
tdev->ulp_iscsi = ddp;
- cdev->csk_ddp_free_gl_skb = ddp_free_gl_skb;
- cdev->csk_ddp_alloc_gl_skb = ddp_alloc_gl_skb;
cdev->csk_ddp_setup_digest = ddp_setup_conn_digest;
cdev->csk_ddp_setup_pgidx = ddp_setup_conn_pgidx;
cdev->csk_ddp_set = ddp_set_map;
extern cxgb3_cpl_handler_func cxgb3i_cpl_handlers[NUM_CPL_CMDS];
-#define cxgb3i_get_private_ipv4addr(ndev) \
- (((struct port_info *)(netdev_priv(ndev)))->iscsi_ipv4addr)
-#define cxgb3i_set_private_ipv4addr(ndev, addr) \
- (((struct port_info *)(netdev_priv(ndev)))->iscsi_ipv4addr) = addr
+static inline unsigned int cxgb3i_get_private_ipv4addr(struct net_device *ndev)
+{
+ return ((struct port_info *)(netdev_priv(ndev)))->iscsi_ipv4addr;
+}
+
+static inline void cxgb3i_set_private_ipv4addr(struct net_device *ndev,
+ unsigned int addr)
+{
+ struct port_info *pi = (struct port_info *)netdev_priv(ndev);
+
+ pi->iscsic.flags = addr ? 1 : 0;
+ pi->iscsi_ipv4addr = addr;
+ if (addr)
+ memcpy(pi->iscsic.mac_addr, ndev->dev_addr, ETH_ALEN);
+}
struct cpl_iscsi_hdr_norss {
union opcode_tid ot;
.name = DRV_MODULE_NAME,
.caps = CAP_RECOVERY_L0 | CAP_MULTI_R2T | CAP_HDRDGST |
CAP_DATADGST | CAP_DIGEST_OFFLOAD |
- CAP_PADDING_OFFLOAD,
+ CAP_PADDING_OFFLOAD | CAP_TEXT_NEGO,
.param_mask = ISCSI_MAX_RECV_DLENGTH | ISCSI_MAX_XMIT_DLENGTH |
ISCSI_HDRDGST_EN | ISCSI_DATADGST_EN |
ISCSI_INITIAL_R2T_EN | ISCSI_MAX_R2T |
.destroy_conn = iscsi_tcp_conn_teardown,
.start_conn = iscsi_conn_start,
.stop_conn = iscsi_conn_stop,
- .get_conn_param = cxgbi_get_conn_param,
+ .get_conn_param = iscsi_conn_get_param,
.set_param = cxgbi_set_conn_param,
.get_stats = cxgbi_get_conn_stats,
/* pdu xmit req from user space */
.xmit_pdu = cxgbi_conn_xmit_pdu,
.parse_pdu_itt = cxgbi_parse_pdu_itt,
/* TCP connect/disconnect */
+ .get_ep_param = cxgbi_get_ep_param,
.ep_connect = cxgbi_ep_connect,
.ep_poll = cxgbi_ep_poll,
.ep_disconnect = cxgbi_ep_disconnect,
cxgbi_ddp_page_size_factor(pgsz_factor);
cxgb4_iscsi_init(lldi->ports[0], tagmask, pgsz_factor);
- cdev->csk_ddp_free_gl_skb = NULL;
- cdev->csk_ddp_alloc_gl_skb = NULL;
cdev->csk_ddp_setup_digest = ddp_setup_conn_digest;
cdev->csk_ddp_setup_pgidx = ddp_setup_conn_pgidx;
cdev->csk_ddp_set = ddp_set_map;
csk->dst = dst;
csk->daddr.sin_addr.s_addr = daddr->sin_addr.s_addr;
csk->daddr.sin_port = daddr->sin_port;
+ csk->daddr.sin_family = daddr->sin_family;
csk->saddr.sin_addr.s_addr = rt->rt_src;
return csk;
return idx;
}
- if (cdev->csk_ddp_alloc_gl_skb) {
- err = cdev->csk_ddp_alloc_gl_skb(ddp, idx, npods, gfp);
- if (err < 0)
- goto unmark_entries;
- }
-
tag = cxgbi_ddp_tag_base(tformat, sw_tag);
tag |= idx << PPOD_IDX_SHIFT;
hdr.page_offset = htonl(gl->offset);
err = cdev->csk_ddp_set(csk, &hdr, idx, npods, gl);
- if (err < 0) {
- if (cdev->csk_ddp_free_gl_skb)
- cdev->csk_ddp_free_gl_skb(ddp, idx, npods);
+ if (err < 0)
goto unmark_entries;
- }
ddp->idx_last = idx;
log_debug(1 << CXGBI_DBG_DDP,
>> PPOD_PAGES_SHIFT;
pr_info("cdev 0x%p, ddp %d + %d.\n", cdev, i, npods);
kfree(gl);
- if (cdev->csk_ddp_free_gl_skb)
- cdev->csk_ddp_free_gl_skb(ddp, i, npods);
i += npods;
} else
i++;
return -ENOMEM;
}
ddp->gl_map = (struct cxgbi_gather_list **)(ddp + 1);
- ddp->gl_skb = (struct sk_buff **)(((char *)ddp->gl_map) +
- ppmax * sizeof(struct cxgbi_gather_list *));
cdev->ddp = ddp;
spin_lock_init(&ddp->map_lock);
static inline void tx_skb_setmode(struct sk_buff *skb, int hcrc, int dcrc)
{
- u8 submode = 0;
+ if (hcrc || dcrc) {
+ u8 submode = 0;
- if (hcrc)
- submode |= 1;
- if (dcrc)
- submode |= 2;
- cxgbi_skcb_ulp_mode(skb) = (ULP2_MODE_ISCSI << 4) | submode;
+ if (hcrc)
+ submode |= 1;
+ if (dcrc)
+ submode |= 2;
+ cxgbi_skcb_ulp_mode(skb) = (ULP2_MODE_ISCSI << 4) | submode;
+ } else
+ cxgbi_skcb_ulp_mode(skb) = 0;
}
int cxgbi_conn_init_pdu(struct iscsi_task *task, unsigned int offset,
}
EXPORT_SYMBOL_GPL(cxgbi_set_conn_param);
-int cxgbi_get_conn_param(struct iscsi_cls_conn *cls_conn,
- enum iscsi_param param, char *buf)
+int cxgbi_get_ep_param(struct iscsi_endpoint *ep, enum iscsi_param param,
+ char *buf)
{
- struct iscsi_conn *iconn = cls_conn->dd_data;
+ struct cxgbi_endpoint *cep = ep->dd_data;
+ struct cxgbi_sock *csk;
int len;
log_debug(1 << CXGBI_DBG_ISCSI,
- "cls_conn 0x%p, param %d.\n", cls_conn, param);
+ "cls_conn 0x%p, param %d.\n", ep, param);
switch (param) {
case ISCSI_PARAM_CONN_PORT:
- spin_lock_bh(&iconn->session->lock);
- len = sprintf(buf, "%hu\n", iconn->portal_port);
- spin_unlock_bh(&iconn->session->lock);
- break;
case ISCSI_PARAM_CONN_ADDRESS:
- spin_lock_bh(&iconn->session->lock);
- len = sprintf(buf, "%s\n", iconn->portal_address);
- spin_unlock_bh(&iconn->session->lock);
- break;
+ if (!cep)
+ return -ENOTCONN;
+
+ csk = cep->csk;
+ if (!csk)
+ return -ENOTCONN;
+
+ return iscsi_conn_get_addr_param((struct sockaddr_storage *)
+ &csk->daddr, param, buf);
default:
- return iscsi_conn_get_param(cls_conn, param, buf);
+ return -ENOSYS;
}
return len;
}
-EXPORT_SYMBOL_GPL(cxgbi_get_conn_param);
+EXPORT_SYMBOL_GPL(cxgbi_get_ep_param);
struct iscsi_cls_conn *
cxgbi_create_conn(struct iscsi_cls_session *cls_session, u32 cid)
cxgbi_conn_max_xmit_dlength(conn);
cxgbi_conn_max_recv_dlength(conn);
- spin_lock_bh(&conn->session->lock);
- sprintf(conn->portal_address, "%pI4", &csk->daddr.sin_addr.s_addr);
- conn->portal_port = ntohs(csk->daddr.sin_port);
- spin_unlock_bh(&conn->session->lock);
-
log_debug(1 << CXGBI_DBG_ISCSI,
"cls 0x%p,0x%p, ep 0x%p, cconn 0x%p, csk 0x%p.\n",
cls_session, cls_conn, ep, cconn, csk);
unsigned int rsvd_tag_mask;
spinlock_t map_lock;
struct cxgbi_gather_list **gl_map;
- struct sk_buff **gl_skb;
};
#define DDP_PGIDX_MAX 4
struct cxgbi_ddp_info *ddp;
void (*dev_ddp_cleanup)(struct cxgbi_device *);
- void (*csk_ddp_free_gl_skb)(struct cxgbi_ddp_info *, int, int);
- int (*csk_ddp_alloc_gl_skb)(struct cxgbi_ddp_info *, int, int, gfp_t);
int (*csk_ddp_set)(struct cxgbi_sock *, struct cxgbi_pagepod_hdr *,
unsigned int, unsigned int,
struct cxgbi_gather_list *);
void cxgbi_get_conn_stats(struct iscsi_cls_conn *, struct iscsi_stats *);
int cxgbi_set_conn_param(struct iscsi_cls_conn *,
enum iscsi_param, char *, int);
-int cxgbi_get_conn_param(struct iscsi_cls_conn *, enum iscsi_param, char *);
+int cxgbi_get_ep_param(struct iscsi_endpoint *ep, enum iscsi_param, char *);
struct iscsi_cls_conn *cxgbi_create_conn(struct iscsi_cls_session *, u32);
int cxgbi_bind_conn(struct iscsi_cls_session *,
struct iscsi_cls_conn *, u64, int);
#include <scsi/scsi_dh.h>
#include "../scsi_priv.h"
-struct scsi_dh_devinfo_list {
- struct list_head node;
- char vendor[9];
- char model[17];
- struct scsi_device_handler *handler;
-};
-
static DEFINE_SPINLOCK(list_lock);
static LIST_HEAD(scsi_dh_list);
-static LIST_HEAD(scsi_dh_dev_list);
+static int scsi_dh_list_idx = 1;
static struct scsi_device_handler *get_device_handler(const char *name)
{
return found;
}
-
-static struct scsi_device_handler *
-scsi_dh_cache_lookup(struct scsi_device *sdev)
+static struct scsi_device_handler *get_device_handler_by_idx(int idx)
{
- struct scsi_dh_devinfo_list *tmp;
- struct scsi_device_handler *found_dh = NULL;
+ struct scsi_device_handler *tmp, *found = NULL;
spin_lock(&list_lock);
- list_for_each_entry(tmp, &scsi_dh_dev_list, node) {
- if (!strncmp(sdev->vendor, tmp->vendor, strlen(tmp->vendor)) &&
- !strncmp(sdev->model, tmp->model, strlen(tmp->model))) {
- found_dh = tmp->handler;
+ list_for_each_entry(tmp, &scsi_dh_list, list) {
+ if (tmp->idx == idx) {
+ found = tmp;
break;
}
}
spin_unlock(&list_lock);
-
- return found_dh;
-}
-
-static int scsi_dh_handler_lookup(struct scsi_device_handler *scsi_dh,
- struct scsi_device *sdev)
-{
- int i, found = 0;
-
- for(i = 0; scsi_dh->devlist[i].vendor; i++) {
- if (!strncmp(sdev->vendor, scsi_dh->devlist[i].vendor,
- strlen(scsi_dh->devlist[i].vendor)) &&
- !strncmp(sdev->model, scsi_dh->devlist[i].model,
- strlen(scsi_dh->devlist[i].model))) {
- found = 1;
- break;
- }
- }
return found;
}
struct scsi_device *sdev)
{
struct scsi_device_handler *found_dh = NULL;
- struct scsi_dh_devinfo_list *tmp;
+ int idx;
- found_dh = scsi_dh_cache_lookup(sdev);
- if (found_dh)
- return found_dh;
+ idx = scsi_get_device_flags_keyed(sdev, sdev->vendor, sdev->model,
+ SCSI_DEVINFO_DH);
+ found_dh = get_device_handler_by_idx(idx);
- if (scsi_dh) {
- if (scsi_dh_handler_lookup(scsi_dh, sdev))
- found_dh = scsi_dh;
- } else {
- struct scsi_device_handler *tmp_dh;
-
- spin_lock(&list_lock);
- list_for_each_entry(tmp_dh, &scsi_dh_list, list) {
- if (scsi_dh_handler_lookup(tmp_dh, sdev))
- found_dh = tmp_dh;
- }
- spin_unlock(&list_lock);
- }
-
- if (found_dh) { /* If device is found, add it to the cache */
- tmp = kmalloc(sizeof(*tmp), GFP_KERNEL);
- if (tmp) {
- strncpy(tmp->vendor, sdev->vendor, 8);
- strncpy(tmp->model, sdev->model, 16);
- tmp->vendor[8] = '\0';
- tmp->model[16] = '\0';
- tmp->handler = found_dh;
- spin_lock(&list_lock);
- list_add(&tmp->node, &scsi_dh_dev_list);
- spin_unlock(&list_lock);
- } else {
- found_dh = NULL;
- }
- }
+ if (scsi_dh && found_dh != scsi_dh)
+ found_dh = NULL;
return found_dh;
}
*/
int scsi_register_device_handler(struct scsi_device_handler *scsi_dh)
{
+ int i;
+
if (get_device_handler(scsi_dh->name))
return -EBUSY;
spin_lock(&list_lock);
+ scsi_dh->idx = scsi_dh_list_idx++;
list_add(&scsi_dh->list, &scsi_dh_list);
spin_unlock(&list_lock);
+
+ for (i = 0; scsi_dh->devlist[i].vendor; i++) {
+ scsi_dev_info_list_add_keyed(0,
+ scsi_dh->devlist[i].vendor,
+ scsi_dh->devlist[i].model,
+ NULL,
+ scsi_dh->idx,
+ SCSI_DEVINFO_DH);
+ }
+
bus_for_each_dev(&scsi_bus_type, NULL, scsi_dh, scsi_dh_notifier_add);
printk(KERN_INFO "%s: device handler registered\n", scsi_dh->name);
*/
int scsi_unregister_device_handler(struct scsi_device_handler *scsi_dh)
{
- struct scsi_dh_devinfo_list *tmp, *pos;
+ int i;
if (!get_device_handler(scsi_dh->name))
return -ENODEV;
bus_for_each_dev(&scsi_bus_type, NULL, scsi_dh,
scsi_dh_notifier_remove);
+ for (i = 0; scsi_dh->devlist[i].vendor; i++) {
+ scsi_dev_info_list_del_keyed(scsi_dh->devlist[i].vendor,
+ scsi_dh->devlist[i].model,
+ SCSI_DEVINFO_DH);
+ }
+
spin_lock(&list_lock);
list_del(&scsi_dh->list);
- list_for_each_entry_safe(pos, tmp, &scsi_dh_dev_list, node) {
- if (pos->handler == scsi_dh) {
- list_del(&pos->node);
- kfree(pos);
- }
- }
spin_unlock(&list_lock);
printk(KERN_INFO "%s: device handler unregistered\n", scsi_dh->name);
{
int r;
+ r = scsi_dev_info_add_list(SCSI_DEVINFO_DH, "SCSI Device Handler");
+ if (r)
+ return r;
+
r = bus_register_notifier(&scsi_bus_type, &scsi_dh_nb);
if (!r)
bus_for_each_dev(&scsi_bus_type, NULL, NULL,
scsi_dh_sysfs_attr_remove);
bus_unregister_notifier(&scsi_bus_type, &scsi_dh_nb);
+ scsi_dev_info_remove_list(SCSI_DEVINFO_DH);
}
module_init(scsi_dh_init);
{
struct alua_dh_data *h = req->end_io_data;
struct scsi_sense_hdr sense_hdr;
- unsigned err = SCSI_DH_IO;
+ unsigned err = SCSI_DH_OK;
if (error || host_byte(req->errors) != DID_OK ||
- msg_byte(req->errors) != COMMAND_COMPLETE)
+ msg_byte(req->errors) != COMMAND_COMPLETE) {
+ err = SCSI_DH_IO;
goto done;
+ }
- if (err == SCSI_DH_IO && h->senselen > 0) {
+ if (h->senselen > 0) {
err = scsi_normalize_sense(h->sense, SCSI_SENSE_BUFFERSIZE,
&sense_hdr);
if (!err) {
print_alua_state(h->state));
}
done:
- blk_put_request(req);
+ req->end_io_data = NULL;
+ __blk_put_request(req->q, req);
if (h->callback_fn) {
h->callback_fn(h->callback_data, err);
h->callback_fn = h->callback_data = NULL;
static unsigned submit_stpg(struct alua_dh_data *h)
{
struct request *rq;
- int err = SCSI_DH_RES_TEMP_UNAVAIL;
int stpg_len = 8;
struct scsi_device *sdev = h->sdev;
rq->end_io_data = h;
blk_execute_rq_nowait(rq->q, NULL, rq, 1, stpg_endio);
- return err;
+ return SCSI_DH_OK;
}
/*
{"Pillar", "Axiom" },
{"Intel", "Multi-Flex"},
{"NETAPP", "LUN"},
+ {"NETAPP", "LUN C-Mode"},
{"AIX", "NVDISK"},
+ {"Promise", "VTrak"},
{NULL, NULL}
};
unsigned long flags;
int err = SCSI_DH_OK;
- scsi_dh_data = kzalloc(sizeof(struct scsi_device_handler *)
+ scsi_dh_data = kzalloc(sizeof(*scsi_dh_data)
+ sizeof(*h) , GFP_KERNEL);
if (!scsi_dh_data) {
sdev_printk(KERN_ERR, sdev, "%s: Attach failed\n",
unsigned long flags;
int err;
- scsi_dh_data = kzalloc(sizeof(struct scsi_device_handler *)
+ scsi_dh_data = kzalloc(sizeof(*scsi_dh_data)
+ sizeof(*h) , GFP_KERNEL);
if (!scsi_dh_data) {
sdev_printk(KERN_ERR, sdev, "%s: Attach failed\n",
}
}
done:
- blk_put_request(req);
+ req->end_io_data = NULL;
+ __blk_put_request(req->q, req);
if (h->callback_fn) {
h->callback_fn(h->callback_data, err);
h->callback_fn = h->callback_data = NULL;
unsigned long flags;
int ret;
- scsi_dh_data = kzalloc(sizeof(struct scsi_device_handler *)
- + sizeof(struct hp_sw_dh_data) , GFP_KERNEL);
+ scsi_dh_data = kzalloc(sizeof(*scsi_dh_data)
+ + sizeof(*h) , GFP_KERNEL);
if (!scsi_dh_data) {
sdev_printk(KERN_ERR, sdev, "%s: Attach Failed\n",
HP_SW_NAME);
}
static struct request *rdac_failover_get(struct scsi_device *sdev,
- struct rdac_dh_data *h)
+ struct rdac_dh_data *h, struct list_head *list)
{
struct request *rq;
struct rdac_mode_common *common;
unsigned data_size;
+ struct rdac_queue_data *qdata;
+ u8 *lun_table;
if (h->ctlr->use_ms10) {
struct rdac_pg_expanded *rdac_pg;
rdac_pg->subpage_code = 0x1;
rdac_pg->page_len[0] = 0x01;
rdac_pg->page_len[1] = 0x28;
+ lun_table = rdac_pg->lun_table;
} else {
struct rdac_pg_legacy *rdac_pg;
common = &rdac_pg->common;
rdac_pg->page_code = RDAC_PAGE_CODE_REDUNDANT_CONTROLLER;
rdac_pg->page_len = 0x68;
+ lun_table = rdac_pg->lun_table;
}
common->rdac_mode[1] = RDAC_MODE_TRANSFER_SPECIFIED_LUNS;
common->quiescence_timeout = RDAC_QUIESCENCE_TIME;
common->rdac_options = RDAC_FORCED_QUIESENCE;
+ list_for_each_entry(qdata, list, entry) {
+ lun_table[qdata->h->lun] = 0x81;
+ }
+
/* get request for block layer packet command */
rq = get_rdac_req(sdev, &h->ctlr->mode_select, data_size, WRITE);
if (!rq)
int err, retry_cnt = RDAC_RETRY_COUNT;
struct rdac_queue_data *tmp, *qdata;
LIST_HEAD(list);
- u8 *lun_table;
spin_lock(&ctlr->ms_lock);
list_splice_init(&ctlr->ms_head, &list);
ctlr->ms_sdev = NULL;
spin_unlock(&ctlr->ms_lock);
- if (ctlr->use_ms10)
- lun_table = ctlr->mode_select.expanded.lun_table;
- else
- lun_table = ctlr->mode_select.legacy.lun_table;
-
retry:
err = SCSI_DH_RES_TEMP_UNAVAIL;
- rq = rdac_failover_get(sdev, h);
+ rq = rdac_failover_get(sdev, h, &list);
if (!rq)
goto done;
- list_for_each_entry(qdata, &list, entry) {
- lun_table[qdata->h->lun] = 0x81;
- }
-
RDAC_LOG(RDAC_LOG_FAILOVER, sdev, "array %s, ctlr %d, "
"%s MODE_SELECT command",
(char *) h->ctlr->array_name, h->ctlr->index,
{"DELL", "MD32xx"},
{"DELL", "MD32xxi"},
{"DELL", "MD36xxi"},
+ {"DELL", "MD36xxf"},
{"LSI", "INF-01-00"},
{"ENGENIO", "INF-01-00"},
{"STK", "FLEXLINE 380"},
int err;
char array_name[ARRAY_LABEL_LEN];
- scsi_dh_data = kzalloc(sizeof(struct scsi_device_handler *)
+ scsi_dh_data = kzalloc(sizeof(*scsi_dh_data)
+ sizeof(*h) , GFP_KERNEL);
if (!scsi_dh_data) {
sdev_printk(KERN_ERR, sdev, "%s: Attach failed\n",
MODULE_DESCRIPTION("Multipath LSI/Engenio RDAC driver");
MODULE_AUTHOR("Mike Christie, Chandra Seetharaman");
+MODULE_VERSION("01.00.0000.0000");
MODULE_LICENSE("GPL");
obj-$(CONFIG_FCOE) += fcoe.o
obj-$(CONFIG_LIBFCOE) += libfcoe.o
+
+libfcoe-objs := fcoe_ctlr.o fcoe_transport.o
#include <linux/fs.h>
#include <linux/sysfs.h>
#include <linux/ctype.h>
+#include <linux/workqueue.h>
#include <scsi/scsi_tcq.h>
#include <scsi/scsicam.h>
#include <scsi/scsi_transport.h>
DEFINE_MUTEX(fcoe_config_mutex);
+static struct workqueue_struct *fcoe_wq;
+
/* fcoe_percpu_clean completion. Waiter protected by fcoe_create_mutex */
static DECLARE_COMPLETION(fcoe_flush_completion);
static int fcoe_rcv(struct sk_buff *, struct net_device *,
struct packet_type *, struct net_device *);
static int fcoe_percpu_receive_thread(void *);
-static void fcoe_clean_pending_queue(struct fc_lport *);
static void fcoe_percpu_clean(struct fc_lport *);
static int fcoe_link_speed_update(struct fc_lport *);
static int fcoe_link_ok(struct fc_lport *);
static struct fc_lport *fcoe_hostlist_lookup(const struct net_device *);
static int fcoe_hostlist_add(const struct fc_lport *);
-static void fcoe_check_wait_queue(struct fc_lport *, struct sk_buff *);
static int fcoe_device_notification(struct notifier_block *, ulong, void *);
static void fcoe_dev_setup(void);
static void fcoe_dev_cleanup(void);
static int fcoe_cpu_callback(struct notifier_block *, unsigned long, void *);
-static int fcoe_create(const char *, struct kernel_param *);
-static int fcoe_destroy(const char *, struct kernel_param *);
-static int fcoe_enable(const char *, struct kernel_param *);
-static int fcoe_disable(const char *, struct kernel_param *);
+static bool fcoe_match(struct net_device *netdev);
+static int fcoe_create(struct net_device *netdev, enum fip_state fip_mode);
+static int fcoe_destroy(struct net_device *netdev);
+static int fcoe_enable(struct net_device *netdev);
+static int fcoe_disable(struct net_device *netdev);
static struct fc_seq *fcoe_elsct_send(struct fc_lport *,
u32 did, struct fc_frame *,
static void fcoe_get_lesb(struct fc_lport *, struct fc_els_lesb *);
-module_param_call(create, fcoe_create, NULL, (void *)FIP_MODE_FABRIC, S_IWUSR);
-__MODULE_PARM_TYPE(create, "string");
-MODULE_PARM_DESC(create, " Creates fcoe instance on a ethernet interface");
-module_param_call(create_vn2vn, fcoe_create, NULL,
- (void *)FIP_MODE_VN2VN, S_IWUSR);
-__MODULE_PARM_TYPE(create_vn2vn, "string");
-MODULE_PARM_DESC(create_vn2vn, " Creates a VN_node to VN_node FCoE instance "
- "on an Ethernet interface");
-module_param_call(destroy, fcoe_destroy, NULL, NULL, S_IWUSR);
-__MODULE_PARM_TYPE(destroy, "string");
-MODULE_PARM_DESC(destroy, " Destroys fcoe instance on a ethernet interface");
-module_param_call(enable, fcoe_enable, NULL, NULL, S_IWUSR);
-__MODULE_PARM_TYPE(enable, "string");
-MODULE_PARM_DESC(enable, " Enables fcoe on a ethernet interface.");
-module_param_call(disable, fcoe_disable, NULL, NULL, S_IWUSR);
-__MODULE_PARM_TYPE(disable, "string");
-MODULE_PARM_DESC(disable, " Disables fcoe on a ethernet interface.");
-
/* notification function for packets from net device */
static struct notifier_block fcoe_notifier = {
.notifier_call = fcoe_device_notification,
.notifier_call = fcoe_cpu_callback,
};
-static struct scsi_transport_template *fcoe_transport_template;
-static struct scsi_transport_template *fcoe_vport_transport_template;
+static struct scsi_transport_template *fcoe_nport_scsi_transport;
+static struct scsi_transport_template *fcoe_vport_scsi_transport;
static int fcoe_vport_destroy(struct fc_vport *);
static int fcoe_vport_create(struct fc_vport *, bool disabled);
.lport_set_port_id = fcoe_set_port_id,
};
-struct fc_function_template fcoe_transport_function = {
+struct fc_function_template fcoe_nport_fc_functions = {
.show_host_node_name = 1,
.show_host_port_name = 1,
.show_host_supported_classes = 1,
.bsg_request = fc_lport_bsg_request,
};
-struct fc_function_template fcoe_vport_transport_function = {
+struct fc_function_template fcoe_vport_fc_functions = {
.show_host_node_name = 1,
.show_host_port_name = 1,
.show_host_supported_classes = 1,
struct fcoe_interface *fcoe;
int err;
+ if (!try_module_get(THIS_MODULE)) {
+ FCOE_NETDEV_DBG(netdev,
+ "Could not get a reference to the module\n");
+ fcoe = ERR_PTR(-EBUSY);
+ goto out;
+ }
+
fcoe = kzalloc(sizeof(*fcoe), GFP_KERNEL);
if (!fcoe) {
FCOE_NETDEV_DBG(netdev, "Could not allocate fcoe structure\n");
- return NULL;
+ fcoe = ERR_PTR(-ENOMEM);
+ goto out_nomod;
}
dev_hold(netdev);
fcoe_ctlr_destroy(&fcoe->ctlr);
kfree(fcoe);
dev_put(netdev);
- return NULL;
+ fcoe = ERR_PTR(err);
+ goto out_nomod;
}
+ goto out;
+
+out_nomod:
+ module_put(THIS_MODULE);
+out:
return fcoe;
}
fcoe_ctlr_destroy(&fcoe->ctlr);
kfree(fcoe);
dev_put(netdev);
+ module_put(THIS_MODULE);
}
/**
static void fcoe_update_src_mac(struct fc_lport *lport, u8 *addr)
{
struct fcoe_port *port = lport_priv(lport);
- struct fcoe_interface *fcoe = port->fcoe;
+ struct fcoe_interface *fcoe = port->priv;
rtnl_lock();
if (!is_zero_ether_addr(port->data_src_addr))
return 0;
}
-/**
- * fcoe_queue_timer() - The fcoe queue timer
- * @lport: The local port
- *
- * Calls fcoe_check_wait_queue on timeout
- */
-static void fcoe_queue_timer(ulong lport)
-{
- fcoe_check_wait_queue((struct fc_lport *)lport, NULL);
-}
-
/**
* fcoe_get_wwn() - Get the world wide name from LLD if it supports it
* @netdev: the associated net device
/* Setup lport private data to point to fcoe softc */
port = lport_priv(lport);
- fcoe = port->fcoe;
+ fcoe = port->priv;
/*
* Determine max frame size based on underlying device and optional
lport->host->max_cmd_len = FCOE_MAX_CMD_LEN;
if (lport->vport)
- lport->host->transportt = fcoe_vport_transport_template;
+ lport->host->transportt = fcoe_vport_scsi_transport;
else
- lport->host->transportt = fcoe_transport_template;
+ lport->host->transportt = fcoe_nport_scsi_transport;
/* add the new host to the SCSI-ml */
rc = scsi_add_host(lport->host, dev);
static inline int fcoe_em_config(struct fc_lport *lport)
{
struct fcoe_port *port = lport_priv(lport);
- struct fcoe_interface *fcoe = port->fcoe;
+ struct fcoe_interface *fcoe = port->priv;
struct fcoe_interface *oldfcoe = NULL;
struct net_device *old_real_dev, *cur_real_dev;
u16 min_xid = FCOE_MIN_XID;
static void fcoe_if_destroy(struct fc_lport *lport)
{
struct fcoe_port *port = lport_priv(lport);
- struct fcoe_interface *fcoe = port->fcoe;
+ struct fcoe_interface *fcoe = port->priv;
struct net_device *netdev = fcoe->netdev;
FCOE_NETDEV_DBG(netdev, "Destroying interface\n");
/* Release the Scsi_Host */
scsi_host_put(lport->host);
- module_put(THIS_MODULE);
}
/**
struct device *parent, int npiv)
{
struct net_device *netdev = fcoe->netdev;
- struct fc_lport *lport = NULL;
+ struct fc_lport *lport, *n_port;
struct fcoe_port *port;
+ struct Scsi_Host *shost;
int rc;
/*
* parent is only a vport if npiv is 1,
FCOE_NETDEV_DBG(netdev, "Create Interface\n");
- if (!npiv) {
- lport = libfc_host_alloc(&fcoe_shost_template,
- sizeof(struct fcoe_port));
- } else {
- lport = libfc_vport_create(vport,
- sizeof(struct fcoe_port));
- }
+ if (!npiv)
+ lport = libfc_host_alloc(&fcoe_shost_template, sizeof(*port));
+ else
+ lport = libfc_vport_create(vport, sizeof(*port));
+
if (!lport) {
FCOE_NETDEV_DBG(netdev, "Could not allocate host structure\n");
rc = -ENOMEM;
}
port = lport_priv(lport);
port->lport = lport;
- port->fcoe = fcoe;
+ port->priv = fcoe;
+ port->max_queue_depth = FCOE_MAX_QUEUE_DEPTH;
+ port->min_queue_depth = FCOE_MIN_QUEUE_DEPTH;
INIT_WORK(&port->destroy_work, fcoe_destroy_work);
/* configure a fc_lport including the exchange manager */
goto out_lp_destroy;
}
- if (!npiv) {
- /*
- * fcoe_em_alloc() and fcoe_hostlist_add() both
- * need to be atomic with respect to other changes to the
- * hostlist since fcoe_em_alloc() looks for an existing EM
- * instance on host list updated by fcoe_hostlist_add().
- *
- * This is currently handled through the fcoe_config_mutex
- * begin held.
- */
-
+ /*
+ * fcoe_em_alloc() and fcoe_hostlist_add() both
+ * need to be atomic with respect to other changes to the
+ * hostlist since fcoe_em_alloc() looks for an existing EM
+ * instance on host list updated by fcoe_hostlist_add().
+ *
+ * This is currently handled through the fcoe_config_mutex
+ * begin held.
+ */
+ if (!npiv)
/* lport exch manager allocation */
rc = fcoe_em_config(lport);
- if (rc) {
- FCOE_NETDEV_DBG(netdev, "Could not configure the EM "
- "for the interface\n");
- goto out_lp_destroy;
- }
+ else {
+ shost = vport_to_shost(vport);
+ n_port = shost_priv(shost);
+ rc = fc_exch_mgr_list_clone(n_port, lport);
+ }
+
+ if (rc) {
+ FCOE_NETDEV_DBG(netdev, "Could not configure the EM\n");
+ goto out_lp_destroy;
}
fcoe_interface_get(fcoe);
static int __init fcoe_if_init(void)
{
/* attach to scsi transport */
- fcoe_transport_template = fc_attach_transport(&fcoe_transport_function);
- fcoe_vport_transport_template =
- fc_attach_transport(&fcoe_vport_transport_function);
+ fcoe_nport_scsi_transport =
+ fc_attach_transport(&fcoe_nport_fc_functions);
+ fcoe_vport_scsi_transport =
+ fc_attach_transport(&fcoe_vport_fc_functions);
- if (!fcoe_transport_template) {
+ if (!fcoe_nport_scsi_transport) {
printk(KERN_ERR "fcoe: Failed to attach to the FC transport\n");
return -ENODEV;
}
*/
int __exit fcoe_if_exit(void)
{
- fc_release_transport(fcoe_transport_template);
- fc_release_transport(fcoe_vport_transport_template);
- fcoe_transport_template = NULL;
- fcoe_vport_transport_template = NULL;
+ fc_release_transport(fcoe_nport_scsi_transport);
+ fc_release_transport(fcoe_vport_scsi_transport);
+ fcoe_nport_scsi_transport = NULL;
+ fcoe_vport_scsi_transport = NULL;
return 0;
}
}
/**
- * fcoe_start_io() - Start FCoE I/O
- * @skb: The packet to be transmitted
- *
- * This routine is called from the net device to start transmitting
- * FCoE packets.
- *
- * Returns: 0 for success
- */
-static inline int fcoe_start_io(struct sk_buff *skb)
-{
- struct sk_buff *nskb;
- int rc;
-
- nskb = skb_clone(skb, GFP_ATOMIC);
- rc = dev_queue_xmit(nskb);
- if (rc != 0)
- return rc;
- kfree_skb(skb);
- return 0;
-}
-
-/**
- * fcoe_get_paged_crc_eof() - Allocate a page to be used for the trailer CRC
+ * fcoe_alloc_paged_crc_eof() - Allocate a page to be used for the trailer CRC
* @skb: The packet to be transmitted
* @tlen: The total length of the trailer
*
- * This routine allocates a page for frame trailers. The page is re-used if
- * there is enough room left on it for the current trailer. If there isn't
- * enough buffer left a new page is allocated for the trailer. Reference to
- * the page from this function as well as the skbs using the page fragments
- * ensure that the page is freed at the appropriate time.
- *
* Returns: 0 for success
*/
-static int fcoe_get_paged_crc_eof(struct sk_buff *skb, int tlen)
+static int fcoe_alloc_paged_crc_eof(struct sk_buff *skb, int tlen)
{
struct fcoe_percpu_s *fps;
- struct page *page;
+ int rc;
fps = &get_cpu_var(fcoe_percpu);
- page = fps->crc_eof_page;
- if (!page) {
- page = alloc_page(GFP_ATOMIC);
- if (!page) {
- put_cpu_var(fcoe_percpu);
- return -ENOMEM;
- }
- fps->crc_eof_page = page;
- fps->crc_eof_offset = 0;
- }
-
- get_page(page);
- skb_fill_page_desc(skb, skb_shinfo(skb)->nr_frags, page,
- fps->crc_eof_offset, tlen);
- skb->len += tlen;
- skb->data_len += tlen;
- skb->truesize += tlen;
- fps->crc_eof_offset += sizeof(struct fcoe_crc_eof);
-
- if (fps->crc_eof_offset >= PAGE_SIZE) {
- fps->crc_eof_page = NULL;
- fps->crc_eof_offset = 0;
- put_page(page);
- }
+ rc = fcoe_get_paged_crc_eof(skb, tlen, fps);
put_cpu_var(fcoe_percpu);
- return 0;
-}
-/**
- * fcoe_fc_crc() - Calculates the CRC for a given frame
- * @fp: The frame to be checksumed
- *
- * This uses crc32() routine to calculate the CRC for a frame
- *
- * Return: The 32 bit CRC value
- */
-u32 fcoe_fc_crc(struct fc_frame *fp)
-{
- struct sk_buff *skb = fp_skb(fp);
- struct skb_frag_struct *frag;
- unsigned char *data;
- unsigned long off, len, clen;
- u32 crc;
- unsigned i;
-
- crc = crc32(~0, skb->data, skb_headlen(skb));
-
- for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
- frag = &skb_shinfo(skb)->frags[i];
- off = frag->page_offset;
- len = frag->size;
- while (len > 0) {
- clen = min(len, PAGE_SIZE - (off & ~PAGE_MASK));
- data = kmap_atomic(frag->page + (off >> PAGE_SHIFT),
- KM_SKB_DATA_SOFTIRQ);
- crc = crc32(crc, data + (off & ~PAGE_MASK), clen);
- kunmap_atomic(data, KM_SKB_DATA_SOFTIRQ);
- off += clen;
- len -= clen;
- }
- }
- return crc;
+ return rc;
}
/**
unsigned int tlen; /* trailer length */
unsigned int elen; /* eth header, may include vlan */
struct fcoe_port *port = lport_priv(lport);
- struct fcoe_interface *fcoe = port->fcoe;
+ struct fcoe_interface *fcoe = port->priv;
u8 sof, eof;
struct fcoe_hdr *hp;
/* copy port crc and eof to the skb buff */
if (skb_is_nonlinear(skb)) {
skb_frag_t *frag;
- if (fcoe_get_paged_crc_eof(skb, tlen)) {
+ if (fcoe_alloc_paged_crc_eof(skb, tlen)) {
kfree_skb(skb);
return -ENOMEM;
}
complete(&fcoe_flush_completion);
}
+/**
+ * fcoe_filter_frames() - filter out bad fcoe frames, i.e. bad CRC
+ * @lport: The local port the frame was received on
+ * @fp: The received frame
+ *
+ * Return: 0 on passing filtering checks
+ */
+static inline int fcoe_filter_frames(struct fc_lport *lport,
+ struct fc_frame *fp)
+{
+ struct fcoe_interface *fcoe;
+ struct fc_frame_header *fh;
+ struct sk_buff *skb = (struct sk_buff *)fp;
+ struct fcoe_dev_stats *stats;
+
+ /*
+ * We only check CRC if no offload is available and if it is
+ * it's solicited data, in which case, the FCP layer would
+ * check it during the copy.
+ */
+ if (lport->crc_offload && skb->ip_summed == CHECKSUM_UNNECESSARY)
+ fr_flags(fp) &= ~FCPHF_CRC_UNCHECKED;
+ else
+ fr_flags(fp) |= FCPHF_CRC_UNCHECKED;
+
+ fh = (struct fc_frame_header *) skb_transport_header(skb);
+ fh = fc_frame_header_get(fp);
+ if (fh->fh_r_ctl == FC_RCTL_DD_SOL_DATA && fh->fh_type == FC_TYPE_FCP)
+ return 0;
+
+ fcoe = ((struct fcoe_port *)lport_priv(lport))->priv;
+ if (is_fip_mode(&fcoe->ctlr) && fc_frame_payload_op(fp) == ELS_LOGO &&
+ ntoh24(fh->fh_s_id) == FC_FID_FLOGI) {
+ FCOE_DBG("fcoe: dropping FCoE lport LOGO in fip mode\n");
+ return -EINVAL;
+ }
+
+ if (!(fr_flags(fp) & FCPHF_CRC_UNCHECKED) ||
+ le32_to_cpu(fr_crc(fp)) == ~crc32(~0, skb->data, skb->len)) {
+ fr_flags(fp) &= ~FCPHF_CRC_UNCHECKED;
+ return 0;
+ }
+
+ stats = per_cpu_ptr(lport->dev_stats, get_cpu());
+ stats->InvalidCRCCount++;
+ if (stats->InvalidCRCCount < 5)
+ printk(KERN_WARNING "fcoe: dropping frame with CRC error\n");
+ return -EINVAL;
+}
+
/**
* fcoe_recv_frame() - process a single received frame
* @skb: frame to process
struct fc_lport *lport;
struct fcoe_rcv_info *fr;
struct fcoe_dev_stats *stats;
- struct fc_frame_header *fh;
struct fcoe_crc_eof crc_eof;
struct fc_frame *fp;
struct fcoe_port *port;
* was done in fcoe_rcv already.
*/
hp = (struct fcoe_hdr *) skb_network_header(skb);
- fh = (struct fc_frame_header *) skb_transport_header(skb);
stats = per_cpu_ptr(lport->dev_stats, get_cpu());
if (unlikely(FC_FCOE_DECAPS_VER(hp) != FC_FCOE_VER)) {
if (pskb_trim(skb, fr_len))
goto drop;
- /*
- * We only check CRC if no offload is available and if it is
- * it's solicited data, in which case, the FCP layer would
- * check it during the copy.
- */
- if (lport->crc_offload &&
- skb->ip_summed == CHECKSUM_UNNECESSARY)
- fr_flags(fp) &= ~FCPHF_CRC_UNCHECKED;
- else
- fr_flags(fp) |= FCPHF_CRC_UNCHECKED;
-
- fh = fc_frame_header_get(fp);
- if ((fh->fh_r_ctl != FC_RCTL_DD_SOL_DATA ||
- fh->fh_type != FC_TYPE_FCP) &&
- (fr_flags(fp) & FCPHF_CRC_UNCHECKED)) {
- if (le32_to_cpu(fr_crc(fp)) !=
- ~crc32(~0, skb->data, fr_len)) {
- if (stats->InvalidCRCCount < 5)
- printk(KERN_WARNING "fcoe: dropping "
- "frame with CRC error\n");
- stats->InvalidCRCCount++;
- goto drop;
- }
- fr_flags(fp) &= ~FCPHF_CRC_UNCHECKED;
+ if (!fcoe_filter_frames(lport, fp)) {
+ put_cpu();
+ fc_exch_recv(lport, fp);
+ return;
}
- put_cpu();
- fc_exch_recv(lport, fp);
- return;
-
drop:
stats->ErrorFrames++;
put_cpu();
return 0;
}
-/**
- * fcoe_check_wait_queue() - Attempt to clear the transmit backlog
- * @lport: The local port whose backlog is to be cleared
- *
- * This empties the wait_queue, dequeues the head of the wait_queue queue
- * and calls fcoe_start_io() for each packet. If all skb have been
- * transmitted it returns the qlen. If an error occurs it restores
- * wait_queue (to try again later) and returns -1.
- *
- * The wait_queue is used when the skb transmit fails. The failed skb
- * will go in the wait_queue which will be emptied by the timer function or
- * by the next skb transmit.
- */
-static void fcoe_check_wait_queue(struct fc_lport *lport, struct sk_buff *skb)
-{
- struct fcoe_port *port = lport_priv(lport);
- int rc;
-
- spin_lock_bh(&port->fcoe_pending_queue.lock);
-
- if (skb)
- __skb_queue_tail(&port->fcoe_pending_queue, skb);
-
- if (port->fcoe_pending_queue_active)
- goto out;
- port->fcoe_pending_queue_active = 1;
-
- while (port->fcoe_pending_queue.qlen) {
- /* keep qlen > 0 until fcoe_start_io succeeds */
- port->fcoe_pending_queue.qlen++;
- skb = __skb_dequeue(&port->fcoe_pending_queue);
-
- spin_unlock_bh(&port->fcoe_pending_queue.lock);
- rc = fcoe_start_io(skb);
- spin_lock_bh(&port->fcoe_pending_queue.lock);
-
- if (rc) {
- __skb_queue_head(&port->fcoe_pending_queue, skb);
- /* undo temporary increment above */
- port->fcoe_pending_queue.qlen--;
- break;
- }
- /* undo temporary increment above */
- port->fcoe_pending_queue.qlen--;
- }
-
- if (port->fcoe_pending_queue.qlen < FCOE_LOW_QUEUE_DEPTH)
- lport->qfull = 0;
- if (port->fcoe_pending_queue.qlen && !timer_pending(&port->timer))
- mod_timer(&port->timer, jiffies + 2);
- port->fcoe_pending_queue_active = 0;
-out:
- if (port->fcoe_pending_queue.qlen > FCOE_MAX_QUEUE_DEPTH)
- lport->qfull = 1;
- spin_unlock_bh(&port->fcoe_pending_queue.lock);
- return;
-}
-
/**
* fcoe_dev_setup() - Setup the link change notification interface
*/
list_del(&fcoe->list);
port = lport_priv(fcoe->ctlr.lp);
fcoe_interface_cleanup(fcoe);
- schedule_work(&port->destroy_work);
+ queue_work(fcoe_wq, &port->destroy_work);
goto out;
break;
case NETDEV_FEAT_CHANGE:
return rc;
}
-/**
- * fcoe_if_to_netdev() - Parse a name buffer to get a net device
- * @buffer: The name of the net device
- *
- * Returns: NULL or a ptr to net_device
- */
-static struct net_device *fcoe_if_to_netdev(const char *buffer)
-{
- char *cp;
- char ifname[IFNAMSIZ + 2];
-
- if (buffer) {
- strlcpy(ifname, buffer, IFNAMSIZ);
- cp = ifname + strlen(ifname);
- while (--cp >= ifname && *cp == '\n')
- *cp = '\0';
- return dev_get_by_name(&init_net, ifname);
- }
- return NULL;
-}
-
/**
* fcoe_disable() - Disables a FCoE interface
- * @buffer: The name of the Ethernet interface to be disabled
- * @kp: The associated kernel parameter
+ * @netdev : The net_device object the Ethernet interface to create on
*
- * Called from sysfs.
+ * Called from fcoe transport.
*
* Returns: 0 for success
*/
-static int fcoe_disable(const char *buffer, struct kernel_param *kp)
+static int fcoe_disable(struct net_device *netdev)
{
struct fcoe_interface *fcoe;
- struct net_device *netdev;
int rc = 0;
mutex_lock(&fcoe_config_mutex);
}
#endif
- netdev = fcoe_if_to_netdev(buffer);
- if (!netdev) {
- rc = -ENODEV;
- goto out_nodev;
- }
-
if (!rtnl_trylock()) {
- dev_put(netdev);
mutex_unlock(&fcoe_config_mutex);
- return restart_syscall();
+ return -ERESTARTSYS;
}
fcoe = fcoe_hostlist_lookup_port(netdev);
} else
rc = -ENODEV;
- dev_put(netdev);
out_nodev:
mutex_unlock(&fcoe_config_mutex);
return rc;
/**
* fcoe_enable() - Enables a FCoE interface
- * @buffer: The name of the Ethernet interface to be enabled
- * @kp: The associated kernel parameter
+ * @netdev : The net_device object the Ethernet interface to create on
*
- * Called from sysfs.
+ * Called from fcoe transport.
*
* Returns: 0 for success
*/
-static int fcoe_enable(const char *buffer, struct kernel_param *kp)
+static int fcoe_enable(struct net_device *netdev)
{
struct fcoe_interface *fcoe;
- struct net_device *netdev;
int rc = 0;
mutex_lock(&fcoe_config_mutex);
goto out_nodev;
}
#endif
-
- netdev = fcoe_if_to_netdev(buffer);
- if (!netdev) {
- rc = -ENODEV;
- goto out_nodev;
- }
-
if (!rtnl_trylock()) {
- dev_put(netdev);
mutex_unlock(&fcoe_config_mutex);
- return restart_syscall();
+ return -ERESTARTSYS;
}
fcoe = fcoe_hostlist_lookup_port(netdev);
else if (!fcoe_link_ok(fcoe->ctlr.lp))
fcoe_ctlr_link_up(&fcoe->ctlr);
- dev_put(netdev);
out_nodev:
mutex_unlock(&fcoe_config_mutex);
return rc;
/**
* fcoe_destroy() - Destroy a FCoE interface
- * @buffer: The name of the Ethernet interface to be destroyed
- * @kp: The associated kernel parameter
+ * @netdev : The net_device object the Ethernet interface to create on
*
- * Called from sysfs.
+ * Called from fcoe transport
*
* Returns: 0 for success
*/
-static int fcoe_destroy(const char *buffer, struct kernel_param *kp)
+static int fcoe_destroy(struct net_device *netdev)
{
struct fcoe_interface *fcoe;
- struct net_device *netdev;
int rc = 0;
mutex_lock(&fcoe_config_mutex);
goto out_nodev;
}
#endif
-
- netdev = fcoe_if_to_netdev(buffer);
- if (!netdev) {
- rc = -ENODEV;
- goto out_nodev;
- }
-
if (!rtnl_trylock()) {
- dev_put(netdev);
mutex_unlock(&fcoe_config_mutex);
- return restart_syscall();
+ return -ERESTARTSYS;
}
fcoe = fcoe_hostlist_lookup_port(netdev);
if (!fcoe) {
rtnl_unlock();
rc = -ENODEV;
- goto out_putdev;
+ goto out_nodev;
}
fcoe_interface_cleanup(fcoe);
list_del(&fcoe->list);
/* RTNL mutex is dropped by fcoe_if_destroy */
fcoe_if_destroy(fcoe->ctlr.lp);
-
-out_putdev:
- dev_put(netdev);
out_nodev:
mutex_unlock(&fcoe_config_mutex);
return rc;
mutex_unlock(&fcoe_config_mutex);
}
+/**
+ * fcoe_match() - Check if the FCoE is supported on the given netdevice
+ * @netdev : The net_device object the Ethernet interface to create on
+ *
+ * Called from fcoe transport.
+ *
+ * Returns: always returns true as this is the default FCoE transport,
+ * i.e., support all netdevs.
+ */
+static bool fcoe_match(struct net_device *netdev)
+{
+ return true;
+}
+
/**
* fcoe_create() - Create a fcoe interface
- * @buffer: The name of the Ethernet interface to create on
- * @kp: The associated kernel param
+ * @netdev : The net_device object the Ethernet interface to create on
+ * @fip_mode: The FIP mode for this creation
*
- * Called from sysfs.
+ * Called from fcoe transport
*
* Returns: 0 for success
*/
-static int fcoe_create(const char *buffer, struct kernel_param *kp)
+static int fcoe_create(struct net_device *netdev, enum fip_state fip_mode)
{
- enum fip_state fip_mode = (enum fip_state)(long)kp->arg;
int rc;
struct fcoe_interface *fcoe;
struct fc_lport *lport;
- struct net_device *netdev;
mutex_lock(&fcoe_config_mutex);
if (!rtnl_trylock()) {
mutex_unlock(&fcoe_config_mutex);
- return restart_syscall();
+ return -ERESTARTSYS;
}
#ifdef CONFIG_FCOE_MODULE
* module_init function is called and after module_exit.
*/
if (THIS_MODULE->state != MODULE_STATE_LIVE) {
- rc = -ENODEV;
- goto out_nomod;
- }
-#endif
-
- if (!try_module_get(THIS_MODULE)) {
- rc = -EINVAL;
- goto out_nomod;
- }
-
- netdev = fcoe_if_to_netdev(buffer);
- if (!netdev) {
rc = -ENODEV;
goto out_nodev;
}
+#endif
/* look for existing lport */
if (fcoe_hostlist_lookup(netdev)) {
rc = -EEXIST;
- goto out_putdev;
+ goto out_nodev;
}
fcoe = fcoe_interface_create(netdev, fip_mode);
- if (!fcoe) {
- rc = -ENOMEM;
- goto out_putdev;
+ if (IS_ERR(fcoe)) {
+ rc = PTR_ERR(fcoe);
+ goto out_nodev;
}
lport = fcoe_if_create(fcoe, &netdev->dev, 0);
* should be holding a reference taken in fcoe_if_create().
*/
fcoe_interface_put(fcoe);
- dev_put(netdev);
rtnl_unlock();
mutex_unlock(&fcoe_config_mutex);
return 0;
out_free:
fcoe_interface_put(fcoe);
-out_putdev:
- dev_put(netdev);
out_nodev:
- module_put(THIS_MODULE);
-out_nomod:
rtnl_unlock();
mutex_unlock(&fcoe_config_mutex);
return rc;
*/
int fcoe_link_speed_update(struct fc_lport *lport)
{
- struct fcoe_port *port = lport_priv(lport);
- struct net_device *netdev = port->fcoe->netdev;
+ struct net_device *netdev = fcoe_netdev(lport);
struct ethtool_cmd ecmd = { ETHTOOL_GSET };
if (!dev_ethtool_get_settings(netdev, &ecmd)) {
*/
int fcoe_link_ok(struct fc_lport *lport)
{
- struct fcoe_port *port = lport_priv(lport);
- struct net_device *netdev = port->fcoe->netdev;
+ struct net_device *netdev = fcoe_netdev(lport);
if (netif_oper_up(netdev))
return 0;
}
}
-/**
- * fcoe_clean_pending_queue() - Dequeue a skb and free it
- * @lport: The local port to dequeue a skb on
- */
-void fcoe_clean_pending_queue(struct fc_lport *lport)
-{
- struct fcoe_port *port = lport_priv(lport);
- struct sk_buff *skb;
-
- spin_lock_bh(&port->fcoe_pending_queue.lock);
- while ((skb = __skb_dequeue(&port->fcoe_pending_queue)) != NULL) {
- spin_unlock_bh(&port->fcoe_pending_queue.lock);
- kfree_skb(skb);
- spin_lock_bh(&port->fcoe_pending_queue.lock);
- }
- spin_unlock_bh(&port->fcoe_pending_queue.lock);
-}
-
/**
* fcoe_reset() - Reset a local port
* @shost: The SCSI host associated with the local port to be reset
int fcoe_reset(struct Scsi_Host *shost)
{
struct fc_lport *lport = shost_priv(shost);
- fc_lport_reset(lport);
+ struct fcoe_port *port = lport_priv(lport);
+ struct fcoe_interface *fcoe = port->priv;
+
+ fcoe_ctlr_link_down(&fcoe->ctlr);
+ fcoe_clean_pending_queue(fcoe->ctlr.lp);
+ if (!fcoe_link_ok(fcoe->ctlr.lp))
+ fcoe_ctlr_link_up(&fcoe->ctlr);
return 0;
}
fcoe = fcoe_hostlist_lookup_port(fcoe_netdev(lport));
if (!fcoe) {
port = lport_priv(lport);
- fcoe = port->fcoe;
+ fcoe = port->priv;
list_add_tail(&fcoe->list, &fcoe_hostlist);
}
return 0;
}
+
+static struct fcoe_transport fcoe_sw_transport = {
+ .name = {FCOE_TRANSPORT_DEFAULT},
+ .attached = false,
+ .list = LIST_HEAD_INIT(fcoe_sw_transport.list),
+ .match = fcoe_match,
+ .create = fcoe_create,
+ .destroy = fcoe_destroy,
+ .enable = fcoe_enable,
+ .disable = fcoe_disable,
+};
+
/**
* fcoe_init() - Initialize fcoe.ko
*
unsigned int cpu;
int rc = 0;
+ fcoe_wq = alloc_workqueue("fcoe", 0, 0);
+ if (!fcoe_wq)
+ return -ENOMEM;
+
+ /* register as a fcoe transport */
+ rc = fcoe_transport_attach(&fcoe_sw_transport);
+ if (rc) {
+ printk(KERN_ERR "failed to register an fcoe transport, check "
+ "if libfcoe is loaded\n");
+ return rc;
+ }
+
mutex_lock(&fcoe_config_mutex);
for_each_possible_cpu(cpu) {
fcoe_percpu_thread_destroy(cpu);
}
mutex_unlock(&fcoe_config_mutex);
+ destroy_workqueue(fcoe_wq);
return rc;
}
module_init(fcoe_init);
list_del(&fcoe->list);
port = lport_priv(fcoe->ctlr.lp);
fcoe_interface_cleanup(fcoe);
- schedule_work(&port->destroy_work);
+ queue_work(fcoe_wq, &port->destroy_work);
}
rtnl_unlock();
mutex_unlock(&fcoe_config_mutex);
- /* flush any asyncronous interface destroys,
- * this should happen after the netdev notifier is unregistered */
- flush_scheduled_work();
- /* That will flush out all the N_Ports on the hostlist, but now we
- * may have NPIV VN_Ports scheduled for destruction */
- flush_scheduled_work();
+ /*
+ * destroy_work's may be chained but destroy_workqueue()
+ * can take care of them. Just kill the fcoe_wq.
+ */
+ destroy_workqueue(fcoe_wq);
- /* detach from scsi transport
- * must happen after all destroys are done, therefor after the flush */
+ /*
+ * Detaching from the scsi transport must happen after all
+ * destroys are done on the fcoe_wq. destroy_workqueue will
+ * enusre the fcoe_wq is flushed.
+ */
fcoe_if_exit();
+
+ /* detach from fcoe transport */
+ fcoe_transport_detach(&fcoe_sw_transport);
}
module_exit(fcoe_exit);
void *arg, u32 timeout)
{
struct fcoe_port *port = lport_priv(lport);
- struct fcoe_interface *fcoe = port->fcoe;
+ struct fcoe_interface *fcoe = port->priv;
struct fcoe_ctlr *fip = &fcoe->ctlr;
struct fc_frame_header *fh = fc_frame_header_get(fp);
struct Scsi_Host *shost = vport_to_shost(vport);
struct fc_lport *n_port = shost_priv(shost);
struct fcoe_port *port = lport_priv(n_port);
- struct fcoe_interface *fcoe = port->fcoe;
+ struct fcoe_interface *fcoe = port->priv;
struct net_device *netdev = fcoe->netdev;
struct fc_lport *vn_port;
mutex_lock(&n_port->lp_mutex);
list_del(&vn_port->list);
mutex_unlock(&n_port->lp_mutex);
- schedule_work(&port->destroy_work);
+ queue_work(fcoe_wq, &port->destroy_work);
return 0;
}
u32 port_id, struct fc_frame *fp)
{
struct fcoe_port *port = lport_priv(lport);
- struct fcoe_interface *fcoe = port->fcoe;
+ struct fcoe_interface *fcoe = port->priv;
if (fp && fc_frame_payload_op(fp) == ELS_FLOGI)
fcoe_ctlr_recv_flogi(&fcoe->ctlr, lport, fp);
#include <linux/kthread.h>
#define FCOE_MAX_QUEUE_DEPTH 256
-#define FCOE_LOW_QUEUE_DEPTH 32
+#define FCOE_MIN_QUEUE_DEPTH 32
#define FCOE_WORD_TO_BYTE 4
#define FCOE_MIN_XID 0x0000 /* the min xid supported by fcoe_sw */
#define FCOE_MAX_XID 0x0FFF /* the max xid supported by fcoe_sw */
-/*
- * Max MTU for FCoE: 14 (FCoE header) + 24 (FC header) + 2112 (max FC payload)
- * + 4 (FC CRC) + 4 (FCoE trailer) = 2158 bytes
- */
-#define FCOE_MTU 2158
-
unsigned int fcoe_debug_logging;
module_param_named(debug_logging, fcoe_debug_logging, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(debug_logging, "a bit mask of logging levels");
printk(KERN_INFO "fcoe: %s: " fmt, \
netdev->name, ##args);)
-/**
- * struct fcoe_percpu_s - The per-CPU context for FCoE receive threads
- * @thread: The thread context
- * @fcoe_rx_list: The queue of pending packets to process
- * @page: The memory page for calculating frame trailer CRCs
- * @crc_eof_offset: The offset into the CRC page pointing to available
- * memory for a new trailer
- */
-struct fcoe_percpu_s {
- struct task_struct *thread;
- struct sk_buff_head fcoe_rx_list;
- struct page *crc_eof_page;
- int crc_eof_offset;
-};
-
/**
* struct fcoe_interface - A FCoE interface
* @list: Handle for a list of FCoE interfaces
struct kref kref;
};
-/**
- * struct fcoe_port - The FCoE private structure
- * @fcoe: The associated fcoe interface
- * @lport: The associated local port
- * @fcoe_pending_queue: The pending Rx queue of skbs
- * @fcoe_pending_queue_active: Indicates if the pending queue is active
- * @timer: The queue timer
- * @destroy_work: Handle for work context
- * (to prevent RTNL deadlocks)
- * @data_srt_addr: Source address for data
- *
- * An instance of this structure is to be allocated along with the
- * Scsi_Host and libfc fc_lport structures.
- */
-struct fcoe_port {
- struct fcoe_interface *fcoe;
- struct fc_lport *lport;
- struct sk_buff_head fcoe_pending_queue;
- u8 fcoe_pending_queue_active;
- struct timer_list timer;
- struct work_struct destroy_work;
- u8 data_src_addr[ETH_ALEN];
-};
-
#define fcoe_from_ctlr(fip) container_of(fip, struct fcoe_interface, ctlr)
/**
*/
static inline struct net_device *fcoe_netdev(const struct fc_lport *lport)
{
- return ((struct fcoe_port *)lport_priv(lport))->fcoe->netdev;
+ return ((struct fcoe_interface *)
+ ((struct fcoe_port *)lport_priv(lport))->priv)->netdev;
}
#endif /* _FCOE_H_ */
#include <scsi/libfc.h>
#include <scsi/libfcoe.h>
-MODULE_AUTHOR("Open-FCoE.org");
-MODULE_DESCRIPTION("FIP discovery protocol support for FCoE HBAs");
-MODULE_LICENSE("GPL v2");
+#include "libfcoe.h"
#define FCOE_CTLR_MIN_FKA 500 /* min keep alive (mS) */
#define FCOE_CTLR_DEF_FKA FIP_DEF_FKA /* default keep alive (mS) */
static u8 fcoe_all_vn2vn[ETH_ALEN] = FIP_ALL_VN2VN_MACS;
static u8 fcoe_all_p2p[ETH_ALEN] = FIP_ALL_P2P_MACS;
-unsigned int libfcoe_debug_logging;
-module_param_named(debug_logging, libfcoe_debug_logging, int, S_IRUGO|S_IWUSR);
-MODULE_PARM_DESC(debug_logging, "a bit mask of logging levels");
-
-#define LIBFCOE_LOGGING 0x01 /* General logging, not categorized */
-#define LIBFCOE_FIP_LOGGING 0x02 /* FIP logging */
-
-#define LIBFCOE_CHECK_LOGGING(LEVEL, CMD) \
-do { \
- if (unlikely(libfcoe_debug_logging & LEVEL)) \
- do { \
- CMD; \
- } while (0); \
-} while (0)
-
-#define LIBFCOE_DBG(fmt, args...) \
- LIBFCOE_CHECK_LOGGING(LIBFCOE_LOGGING, \
- printk(KERN_INFO "libfcoe: " fmt, ##args);)
-
-#define LIBFCOE_FIP_DBG(fip, fmt, args...) \
- LIBFCOE_CHECK_LOGGING(LIBFCOE_FIP_LOGGING, \
- printk(KERN_INFO "host%d: fip: " fmt, \
- (fip)->lp->host->host_no, ##args);)
-
-static const char *fcoe_ctlr_states[] = {
+static const char * const fcoe_ctlr_states[] = {
[FIP_ST_DISABLED] = "DISABLED",
[FIP_ST_LINK_WAIT] = "LINK_WAIT",
[FIP_ST_AUTO] = "AUTO",
struct fip_mac_desc mac;
struct fip_wwn_desc wwnn;
struct fip_size_desc size;
- } __attribute__((packed)) desc;
- } __attribute__((packed)) *sol;
+ } __packed desc;
+ } __packed * sol;
u32 fcoe_size;
skb = dev_alloc_skb(sizeof(*sol));
struct ethhdr eth;
struct fip_header fip;
struct fip_mac_desc mac;
- } __attribute__((packed)) *kal;
+ } __packed * kal;
struct fip_vn_desc *vn;
u32 len;
struct fc_lport *lp;
struct ethhdr eth;
struct fip_header fip;
struct fip_encaps encaps;
- } __attribute__((packed)) *cap;
+ } __packed * cap;
struct fc_frame_header *fh;
struct fip_mac_desc *mac;
struct fcoe_fcf *fcf;
struct fip_mac_desc mac;
struct fip_wwn_desc wwnn;
struct fip_vn_desc vn;
- } __attribute__((packed)) *frame;
+ } __packed * frame;
struct fip_fc4_feat *ff;
struct fip_size_desc *size;
u32 fcp_feat;
--- /dev/null
+/*
+ * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Maintained at www.Open-FCoE.org
+ */
+
+#include <linux/types.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/list.h>
+#include <linux/netdevice.h>
+#include <linux/errno.h>
+#include <linux/crc32.h>
+#include <scsi/libfcoe.h>
+
+#include "libfcoe.h"
+
+MODULE_AUTHOR("Open-FCoE.org");
+MODULE_DESCRIPTION("FIP discovery protocol and FCoE transport for FCoE HBAs");
+MODULE_LICENSE("GPL v2");
+
+static int fcoe_transport_create(const char *, struct kernel_param *);
+static int fcoe_transport_destroy(const char *, struct kernel_param *);
+static int fcoe_transport_show(char *buffer, const struct kernel_param *kp);
+static struct fcoe_transport *fcoe_transport_lookup(struct net_device *device);
+static struct fcoe_transport *fcoe_netdev_map_lookup(struct net_device *device);
+static int fcoe_transport_enable(const char *, struct kernel_param *);
+static int fcoe_transport_disable(const char *, struct kernel_param *);
+static int libfcoe_device_notification(struct notifier_block *notifier,
+ ulong event, void *ptr);
+
+static LIST_HEAD(fcoe_transports);
+static DEFINE_MUTEX(ft_mutex);
+static LIST_HEAD(fcoe_netdevs);
+static DEFINE_MUTEX(fn_mutex);
+
+unsigned int libfcoe_debug_logging;
+module_param_named(debug_logging, libfcoe_debug_logging, int, S_IRUGO|S_IWUSR);
+MODULE_PARM_DESC(debug_logging, "a bit mask of logging levels");
+
+module_param_call(show, NULL, fcoe_transport_show, NULL, S_IRUSR);
+__MODULE_PARM_TYPE(show, "string");
+MODULE_PARM_DESC(show, " Show attached FCoE transports");
+
+module_param_call(create, fcoe_transport_create, NULL,
+ (void *)FIP_MODE_FABRIC, S_IWUSR);
+__MODULE_PARM_TYPE(create, "string");
+MODULE_PARM_DESC(create, " Creates fcoe instance on a ethernet interface");
+
+module_param_call(create_vn2vn, fcoe_transport_create, NULL,
+ (void *)FIP_MODE_VN2VN, S_IWUSR);
+__MODULE_PARM_TYPE(create_vn2vn, "string");
+MODULE_PARM_DESC(create_vn2vn, " Creates a VN_node to VN_node FCoE instance "
+ "on an Ethernet interface");
+
+module_param_call(destroy, fcoe_transport_destroy, NULL, NULL, S_IWUSR);
+__MODULE_PARM_TYPE(destroy, "string");
+MODULE_PARM_DESC(destroy, " Destroys fcoe instance on a ethernet interface");
+
+module_param_call(enable, fcoe_transport_enable, NULL, NULL, S_IWUSR);
+__MODULE_PARM_TYPE(enable, "string");
+MODULE_PARM_DESC(enable, " Enables fcoe on a ethernet interface.");
+
+module_param_call(disable, fcoe_transport_disable, NULL, NULL, S_IWUSR);
+__MODULE_PARM_TYPE(disable, "string");
+MODULE_PARM_DESC(disable, " Disables fcoe on a ethernet interface.");
+
+/* notification function for packets from net device */
+static struct notifier_block libfcoe_notifier = {
+ .notifier_call = libfcoe_device_notification,
+};
+
+/**
+ * fcoe_fc_crc() - Calculates the CRC for a given frame
+ * @fp: The frame to be checksumed
+ *
+ * This uses crc32() routine to calculate the CRC for a frame
+ *
+ * Return: The 32 bit CRC value
+ */
+u32 fcoe_fc_crc(struct fc_frame *fp)
+{
+ struct sk_buff *skb = fp_skb(fp);
+ struct skb_frag_struct *frag;
+ unsigned char *data;
+ unsigned long off, len, clen;
+ u32 crc;
+ unsigned i;
+
+ crc = crc32(~0, skb->data, skb_headlen(skb));
+
+ for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
+ frag = &skb_shinfo(skb)->frags[i];
+ off = frag->page_offset;
+ len = frag->size;
+ while (len > 0) {
+ clen = min(len, PAGE_SIZE - (off & ~PAGE_MASK));
+ data = kmap_atomic(frag->page + (off >> PAGE_SHIFT),
+ KM_SKB_DATA_SOFTIRQ);
+ crc = crc32(crc, data + (off & ~PAGE_MASK), clen);
+ kunmap_atomic(data, KM_SKB_DATA_SOFTIRQ);
+ off += clen;
+ len -= clen;
+ }
+ }
+ return crc;
+}
+EXPORT_SYMBOL_GPL(fcoe_fc_crc);
+
+/**
+ * fcoe_start_io() - Start FCoE I/O
+ * @skb: The packet to be transmitted
+ *
+ * This routine is called from the net device to start transmitting
+ * FCoE packets.
+ *
+ * Returns: 0 for success
+ */
+int fcoe_start_io(struct sk_buff *skb)
+{
+ struct sk_buff *nskb;
+ int rc;
+
+ nskb = skb_clone(skb, GFP_ATOMIC);
+ if (!nskb)
+ return -ENOMEM;
+ rc = dev_queue_xmit(nskb);
+ if (rc != 0)
+ return rc;
+ kfree_skb(skb);
+ return 0;
+}
+EXPORT_SYMBOL_GPL(fcoe_start_io);
+
+
+/**
+ * fcoe_clean_pending_queue() - Dequeue a skb and free it
+ * @lport: The local port to dequeue a skb on
+ */
+void fcoe_clean_pending_queue(struct fc_lport *lport)
+{
+ struct fcoe_port *port = lport_priv(lport);
+ struct sk_buff *skb;
+
+ spin_lock_bh(&port->fcoe_pending_queue.lock);
+ while ((skb = __skb_dequeue(&port->fcoe_pending_queue)) != NULL) {
+ spin_unlock_bh(&port->fcoe_pending_queue.lock);
+ kfree_skb(skb);
+ spin_lock_bh(&port->fcoe_pending_queue.lock);
+ }
+ spin_unlock_bh(&port->fcoe_pending_queue.lock);
+}
+EXPORT_SYMBOL_GPL(fcoe_clean_pending_queue);
+
+/**
+ * fcoe_check_wait_queue() - Attempt to clear the transmit backlog
+ * @lport: The local port whose backlog is to be cleared
+ *
+ * This empties the wait_queue, dequeues the head of the wait_queue queue
+ * and calls fcoe_start_io() for each packet. If all skb have been
+ * transmitted it returns the qlen. If an error occurs it restores
+ * wait_queue (to try again later) and returns -1.
+ *
+ * The wait_queue is used when the skb transmit fails. The failed skb
+ * will go in the wait_queue which will be emptied by the timer function or
+ * by the next skb transmit.
+ */
+void fcoe_check_wait_queue(struct fc_lport *lport, struct sk_buff *skb)
+{
+ struct fcoe_port *port = lport_priv(lport);
+ int rc;
+
+ spin_lock_bh(&port->fcoe_pending_queue.lock);
+
+ if (skb)
+ __skb_queue_tail(&port->fcoe_pending_queue, skb);
+
+ if (port->fcoe_pending_queue_active)
+ goto out;
+ port->fcoe_pending_queue_active = 1;
+
+ while (port->fcoe_pending_queue.qlen) {
+ /* keep qlen > 0 until fcoe_start_io succeeds */
+ port->fcoe_pending_queue.qlen++;
+ skb = __skb_dequeue(&port->fcoe_pending_queue);
+
+ spin_unlock_bh(&port->fcoe_pending_queue.lock);
+ rc = fcoe_start_io(skb);
+ spin_lock_bh(&port->fcoe_pending_queue.lock);
+
+ if (rc) {
+ __skb_queue_head(&port->fcoe_pending_queue, skb);
+ /* undo temporary increment above */
+ port->fcoe_pending_queue.qlen--;
+ break;
+ }
+ /* undo temporary increment above */
+ port->fcoe_pending_queue.qlen--;
+ }
+
+ if (port->fcoe_pending_queue.qlen < port->min_queue_depth)
+ lport->qfull = 0;
+ if (port->fcoe_pending_queue.qlen && !timer_pending(&port->timer))
+ mod_timer(&port->timer, jiffies + 2);
+ port->fcoe_pending_queue_active = 0;
+out:
+ if (port->fcoe_pending_queue.qlen > port->max_queue_depth)
+ lport->qfull = 1;
+ spin_unlock_bh(&port->fcoe_pending_queue.lock);
+}
+EXPORT_SYMBOL_GPL(fcoe_check_wait_queue);
+
+/**
+ * fcoe_queue_timer() - The fcoe queue timer
+ * @lport: The local port
+ *
+ * Calls fcoe_check_wait_queue on timeout
+ */
+void fcoe_queue_timer(ulong lport)
+{
+ fcoe_check_wait_queue((struct fc_lport *)lport, NULL);
+}
+EXPORT_SYMBOL_GPL(fcoe_queue_timer);
+
+/**
+ * fcoe_get_paged_crc_eof() - Allocate a page to be used for the trailer CRC
+ * @skb: The packet to be transmitted
+ * @tlen: The total length of the trailer
+ * @fps: The fcoe context
+ *
+ * This routine allocates a page for frame trailers. The page is re-used if
+ * there is enough room left on it for the current trailer. If there isn't
+ * enough buffer left a new page is allocated for the trailer. Reference to
+ * the page from this function as well as the skbs using the page fragments
+ * ensure that the page is freed at the appropriate time.
+ *
+ * Returns: 0 for success
+ */
+int fcoe_get_paged_crc_eof(struct sk_buff *skb, int tlen,
+ struct fcoe_percpu_s *fps)
+{
+ struct page *page;
+
+ page = fps->crc_eof_page;
+ if (!page) {
+ page = alloc_page(GFP_ATOMIC);
+ if (!page)
+ return -ENOMEM;
+
+ fps->crc_eof_page = page;
+ fps->crc_eof_offset = 0;
+ }
+
+ get_page(page);
+ skb_fill_page_desc(skb, skb_shinfo(skb)->nr_frags, page,
+ fps->crc_eof_offset, tlen);
+ skb->len += tlen;
+ skb->data_len += tlen;
+ skb->truesize += tlen;
+ fps->crc_eof_offset += sizeof(struct fcoe_crc_eof);
+
+ if (fps->crc_eof_offset >= PAGE_SIZE) {
+ fps->crc_eof_page = NULL;
+ fps->crc_eof_offset = 0;
+ put_page(page);
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(fcoe_get_paged_crc_eof);
+
+/**
+ * fcoe_transport_lookup - find an fcoe transport that matches a netdev
+ * @netdev: The netdev to look for from all attached transports
+ *
+ * Returns : ptr to the fcoe transport that supports this netdev or NULL
+ * if not found.
+ *
+ * The ft_mutex should be held when this is called
+ */
+static struct fcoe_transport *fcoe_transport_lookup(struct net_device *netdev)
+{
+ struct fcoe_transport *ft = NULL;
+
+ list_for_each_entry(ft, &fcoe_transports, list)
+ if (ft->match && ft->match(netdev))
+ return ft;
+ return NULL;
+}
+
+/**
+ * fcoe_transport_attach - Attaches an FCoE transport
+ * @ft: The fcoe transport to be attached
+ *
+ * Returns : 0 for success
+ */
+int fcoe_transport_attach(struct fcoe_transport *ft)
+{
+ int rc = 0;
+
+ mutex_lock(&ft_mutex);
+ if (ft->attached) {
+ LIBFCOE_TRANSPORT_DBG("transport %s already attached\n",
+ ft->name);
+ rc = -EEXIST;
+ goto out_attach;
+ }
+
+ /* Add default transport to the tail */
+ if (strcmp(ft->name, FCOE_TRANSPORT_DEFAULT))
+ list_add(&ft->list, &fcoe_transports);
+ else
+ list_add_tail(&ft->list, &fcoe_transports);
+
+ ft->attached = true;
+ LIBFCOE_TRANSPORT_DBG("attaching transport %s\n", ft->name);
+
+out_attach:
+ mutex_unlock(&ft_mutex);
+ return rc;
+}
+EXPORT_SYMBOL(fcoe_transport_attach);
+
+/**
+ * fcoe_transport_attach - Detaches an FCoE transport
+ * @ft: The fcoe transport to be attached
+ *
+ * Returns : 0 for success
+ */
+int fcoe_transport_detach(struct fcoe_transport *ft)
+{
+ int rc = 0;
+
+ mutex_lock(&ft_mutex);
+ if (!ft->attached) {
+ LIBFCOE_TRANSPORT_DBG("transport %s already detached\n",
+ ft->name);
+ rc = -ENODEV;
+ goto out_attach;
+ }
+
+ list_del(&ft->list);
+ ft->attached = false;
+ LIBFCOE_TRANSPORT_DBG("detaching transport %s\n", ft->name);
+
+out_attach:
+ mutex_unlock(&ft_mutex);
+ return rc;
+
+}
+EXPORT_SYMBOL(fcoe_transport_detach);
+
+static int fcoe_transport_show(char *buffer, const struct kernel_param *kp)
+{
+ int i, j;
+ struct fcoe_transport *ft = NULL;
+
+ i = j = sprintf(buffer, "Attached FCoE transports:");
+ mutex_lock(&ft_mutex);
+ list_for_each_entry(ft, &fcoe_transports, list) {
+ i += snprintf(&buffer[i], IFNAMSIZ, "%s ", ft->name);
+ if (i >= PAGE_SIZE)
+ break;
+ }
+ mutex_unlock(&ft_mutex);
+ if (i == j)
+ i += snprintf(&buffer[i], IFNAMSIZ, "none");
+ return i;
+}
+
+static int __init fcoe_transport_init(void)
+{
+ register_netdevice_notifier(&libfcoe_notifier);
+ return 0;
+}
+
+static int __exit fcoe_transport_exit(void)
+{
+ struct fcoe_transport *ft;
+
+ unregister_netdevice_notifier(&libfcoe_notifier);
+ mutex_lock(&ft_mutex);
+ list_for_each_entry(ft, &fcoe_transports, list)
+ printk(KERN_ERR "FCoE transport %s is still attached!\n",
+ ft->name);
+ mutex_unlock(&ft_mutex);
+ return 0;
+}
+
+
+static int fcoe_add_netdev_mapping(struct net_device *netdev,
+ struct fcoe_transport *ft)
+{
+ struct fcoe_netdev_mapping *nm;
+
+ nm = kmalloc(sizeof(*nm), GFP_KERNEL);
+ if (!nm) {
+ printk(KERN_ERR "Unable to allocate netdev_mapping");
+ return -ENOMEM;
+ }
+
+ nm->netdev = netdev;
+ nm->ft = ft;
+
+ mutex_lock(&fn_mutex);
+ list_add(&nm->list, &fcoe_netdevs);
+ mutex_unlock(&fn_mutex);
+ return 0;
+}
+
+
+static void fcoe_del_netdev_mapping(struct net_device *netdev)
+{
+ struct fcoe_netdev_mapping *nm = NULL, *tmp;
+
+ mutex_lock(&fn_mutex);
+ list_for_each_entry_safe(nm, tmp, &fcoe_netdevs, list) {
+ if (nm->netdev == netdev) {
+ list_del(&nm->list);
+ kfree(nm);
+ mutex_unlock(&fn_mutex);
+ return;
+ }
+ }
+ mutex_unlock(&fn_mutex);
+}
+
+
+/**
+ * fcoe_netdev_map_lookup - find the fcoe transport that matches the netdev on which
+ * it was created
+ *
+ * Returns : ptr to the fcoe transport that supports this netdev or NULL
+ * if not found.
+ *
+ * The ft_mutex should be held when this is called
+ */
+static struct fcoe_transport *fcoe_netdev_map_lookup(struct net_device *netdev)
+{
+ struct fcoe_transport *ft = NULL;
+ struct fcoe_netdev_mapping *nm;
+
+ mutex_lock(&fn_mutex);
+ list_for_each_entry(nm, &fcoe_netdevs, list) {
+ if (netdev == nm->netdev) {
+ ft = nm->ft;
+ mutex_unlock(&fn_mutex);
+ return ft;
+ }
+ }
+
+ mutex_unlock(&fn_mutex);
+ return NULL;
+}
+
+/**
+ * fcoe_if_to_netdev() - Parse a name buffer to get a net device
+ * @buffer: The name of the net device
+ *
+ * Returns: NULL or a ptr to net_device
+ */
+static struct net_device *fcoe_if_to_netdev(const char *buffer)
+{
+ char *cp;
+ char ifname[IFNAMSIZ + 2];
+
+ if (buffer) {
+ strlcpy(ifname, buffer, IFNAMSIZ);
+ cp = ifname + strlen(ifname);
+ while (--cp >= ifname && *cp == '\n')
+ *cp = '\0';
+ return dev_get_by_name(&init_net, ifname);
+ }
+ return NULL;
+}
+
+/**
+ * libfcoe_device_notification() - Handler for net device events
+ * @notifier: The context of the notification
+ * @event: The type of event
+ * @ptr: The net device that the event was on
+ *
+ * This function is called by the Ethernet driver in case of link change event.
+ *
+ * Returns: 0 for success
+ */
+static int libfcoe_device_notification(struct notifier_block *notifier,
+ ulong event, void *ptr)
+{
+ struct net_device *netdev = ptr;
+
+ switch (event) {
+ case NETDEV_UNREGISTER:
+ printk(KERN_ERR "libfcoe_device_notification: NETDEV_UNREGISTER %s\n",
+ netdev->name);
+ fcoe_del_netdev_mapping(netdev);
+ break;
+ }
+ return NOTIFY_OK;
+}
+
+
+/**
+ * fcoe_transport_create() - Create a fcoe interface
+ * @buffer: The name of the Ethernet interface to create on
+ * @kp: The associated kernel param
+ *
+ * Called from sysfs. This holds the ft_mutex while calling the
+ * registered fcoe transport's create function.
+ *
+ * Returns: 0 for success
+ */
+static int fcoe_transport_create(const char *buffer, struct kernel_param *kp)
+{
+ int rc = -ENODEV;
+ struct net_device *netdev = NULL;
+ struct fcoe_transport *ft = NULL;
+ enum fip_state fip_mode = (enum fip_state)(long)kp->arg;
+
+ if (!mutex_trylock(&ft_mutex))
+ return restart_syscall();
+
+#ifdef CONFIG_LIBFCOE_MODULE
+ /*
+ * Make sure the module has been initialized, and is not about to be
+ * removed. Module parameter sysfs files are writable before the
+ * module_init function is called and after module_exit.
+ */
+ if (THIS_MODULE->state != MODULE_STATE_LIVE)
+ goto out_nodev;
+#endif
+
+ netdev = fcoe_if_to_netdev(buffer);
+ if (!netdev) {
+ LIBFCOE_TRANSPORT_DBG("Invalid device %s.\n", buffer);
+ goto out_nodev;
+ }
+
+ ft = fcoe_netdev_map_lookup(netdev);
+ if (ft) {
+ LIBFCOE_TRANSPORT_DBG("transport %s already has existing "
+ "FCoE instance on %s.\n",
+ ft->name, netdev->name);
+ rc = -EEXIST;
+ goto out_putdev;
+ }
+
+ ft = fcoe_transport_lookup(netdev);
+ if (!ft) {
+ LIBFCOE_TRANSPORT_DBG("no FCoE transport found for %s.\n",
+ netdev->name);
+ goto out_putdev;
+ }
+
+ rc = fcoe_add_netdev_mapping(netdev, ft);
+ if (rc) {
+ LIBFCOE_TRANSPORT_DBG("failed to add new netdev mapping "
+ "for FCoE transport %s for %s.\n",
+ ft->name, netdev->name);
+ goto out_putdev;
+ }
+
+ /* pass to transport create */
+ rc = ft->create ? ft->create(netdev, fip_mode) : -ENODEV;
+ if (rc)
+ fcoe_del_netdev_mapping(netdev);
+
+ LIBFCOE_TRANSPORT_DBG("transport %s %s to create fcoe on %s.\n",
+ ft->name, (rc) ? "failed" : "succeeded",
+ netdev->name);
+
+out_putdev:
+ dev_put(netdev);
+out_nodev:
+ mutex_unlock(&ft_mutex);
+ if (rc == -ERESTARTSYS)
+ return restart_syscall();
+ else
+ return rc;
+}
+
+/**
+ * fcoe_transport_destroy() - Destroy a FCoE interface
+ * @buffer: The name of the Ethernet interface to be destroyed
+ * @kp: The associated kernel parameter
+ *
+ * Called from sysfs. This holds the ft_mutex while calling the
+ * registered fcoe transport's destroy function.
+ *
+ * Returns: 0 for success
+ */
+static int fcoe_transport_destroy(const char *buffer, struct kernel_param *kp)
+{
+ int rc = -ENODEV;
+ struct net_device *netdev = NULL;
+ struct fcoe_transport *ft = NULL;
+
+ if (!mutex_trylock(&ft_mutex))
+ return restart_syscall();
+
+#ifdef CONFIG_LIBFCOE_MODULE
+ /*
+ * Make sure the module has been initialized, and is not about to be
+ * removed. Module parameter sysfs files are writable before the
+ * module_init function is called and after module_exit.
+ */
+ if (THIS_MODULE->state != MODULE_STATE_LIVE)
+ goto out_nodev;
+#endif
+
+ netdev = fcoe_if_to_netdev(buffer);
+ if (!netdev) {
+ LIBFCOE_TRANSPORT_DBG("invalid device %s.\n", buffer);
+ goto out_nodev;
+ }
+
+ ft = fcoe_netdev_map_lookup(netdev);
+ if (!ft) {
+ LIBFCOE_TRANSPORT_DBG("no FCoE transport found for %s.\n",
+ netdev->name);
+ goto out_putdev;
+ }
+
+ /* pass to transport destroy */
+ rc = ft->destroy ? ft->destroy(netdev) : -ENODEV;
+ fcoe_del_netdev_mapping(netdev);
+ LIBFCOE_TRANSPORT_DBG("transport %s %s to destroy fcoe on %s.\n",
+ ft->name, (rc) ? "failed" : "succeeded",
+ netdev->name);
+
+out_putdev:
+ dev_put(netdev);
+out_nodev:
+ mutex_unlock(&ft_mutex);
+
+ if (rc == -ERESTARTSYS)
+ return restart_syscall();
+ else
+ return rc;
+}
+
+/**
+ * fcoe_transport_disable() - Disables a FCoE interface
+ * @buffer: The name of the Ethernet interface to be disabled
+ * @kp: The associated kernel parameter
+ *
+ * Called from sysfs.
+ *
+ * Returns: 0 for success
+ */
+static int fcoe_transport_disable(const char *buffer, struct kernel_param *kp)
+{
+ int rc = -ENODEV;
+ struct net_device *netdev = NULL;
+ struct fcoe_transport *ft = NULL;
+
+ if (!mutex_trylock(&ft_mutex))
+ return restart_syscall();
+
+#ifdef CONFIG_LIBFCOE_MODULE
+ /*
+ * Make sure the module has been initialized, and is not about to be
+ * removed. Module parameter sysfs files are writable before the
+ * module_init function is called and after module_exit.
+ */
+ if (THIS_MODULE->state != MODULE_STATE_LIVE)
+ goto out_nodev;
+#endif
+
+ netdev = fcoe_if_to_netdev(buffer);
+ if (!netdev)
+ goto out_nodev;
+
+ ft = fcoe_netdev_map_lookup(netdev);
+ if (!ft)
+ goto out_putdev;
+
+ rc = ft->disable ? ft->disable(netdev) : -ENODEV;
+
+out_putdev:
+ dev_put(netdev);
+out_nodev:
+ mutex_unlock(&ft_mutex);
+
+ if (rc == -ERESTARTSYS)
+ return restart_syscall();
+ else
+ return rc;
+}
+
+/**
+ * fcoe_transport_enable() - Enables a FCoE interface
+ * @buffer: The name of the Ethernet interface to be enabled
+ * @kp: The associated kernel parameter
+ *
+ * Called from sysfs.
+ *
+ * Returns: 0 for success
+ */
+static int fcoe_transport_enable(const char *buffer, struct kernel_param *kp)
+{
+ int rc = -ENODEV;
+ struct net_device *netdev = NULL;
+ struct fcoe_transport *ft = NULL;
+
+ if (!mutex_trylock(&ft_mutex))
+ return restart_syscall();
+
+#ifdef CONFIG_LIBFCOE_MODULE
+ /*
+ * Make sure the module has been initialized, and is not about to be
+ * removed. Module parameter sysfs files are writable before the
+ * module_init function is called and after module_exit.
+ */
+ if (THIS_MODULE->state != MODULE_STATE_LIVE)
+ goto out_nodev;
+#endif
+
+ netdev = fcoe_if_to_netdev(buffer);
+ if (!netdev)
+ goto out_nodev;
+
+ ft = fcoe_netdev_map_lookup(netdev);
+ if (!ft)
+ goto out_putdev;
+
+ rc = ft->enable ? ft->enable(netdev) : -ENODEV;
+
+out_putdev:
+ dev_put(netdev);
+out_nodev:
+ mutex_unlock(&ft_mutex);
+ if (rc == -ERESTARTSYS)
+ return restart_syscall();
+ else
+ return rc;
+}
+
+/**
+ * libfcoe_init() - Initialization routine for libfcoe.ko
+ */
+static int __init libfcoe_init(void)
+{
+ fcoe_transport_init();
+
+ return 0;
+}
+module_init(libfcoe_init);
+
+/**
+ * libfcoe_exit() - Tear down libfcoe.ko
+ */
+static void __exit libfcoe_exit(void)
+{
+ fcoe_transport_exit();
+}
+module_exit(libfcoe_exit);
--- /dev/null
+#ifndef _FCOE_LIBFCOE_H_
+#define _FCOE_LIBFCOE_H_
+
+extern unsigned int libfcoe_debug_logging;
+#define LIBFCOE_LOGGING 0x01 /* General logging, not categorized */
+#define LIBFCOE_FIP_LOGGING 0x02 /* FIP logging */
+#define LIBFCOE_TRANSPORT_LOGGING 0x04 /* FCoE transport logging */
+
+#define LIBFCOE_CHECK_LOGGING(LEVEL, CMD) \
+do { \
+ if (unlikely(libfcoe_debug_logging & LEVEL)) \
+ do { \
+ CMD; \
+ } while (0); \
+} while (0)
+
+#define LIBFCOE_DBG(fmt, args...) \
+ LIBFCOE_CHECK_LOGGING(LIBFCOE_LOGGING, \
+ printk(KERN_INFO "libfcoe: " fmt, ##args);)
+
+#define LIBFCOE_FIP_DBG(fip, fmt, args...) \
+ LIBFCOE_CHECK_LOGGING(LIBFCOE_FIP_LOGGING, \
+ printk(KERN_INFO "host%d: fip: " fmt, \
+ (fip)->lp->host->host_no, ##args);)
+
+#define LIBFCOE_TRANSPORT_DBG(fmt, args...) \
+ LIBFCOE_CHECK_LOGGING(LIBFCOE_TRANSPORT_LOGGING, \
+ printk(KERN_INFO "%s: " fmt, \
+ __func__, ##args);)
+
+#endif /* _FCOE_LIBFCOE_H_ */
#define DRV_NAME "fnic"
#define DRV_DESCRIPTION "Cisco FCoE HBA Driver"
-#define DRV_VERSION "1.4.0.145"
+#define DRV_VERSION "1.5.0.1"
#define PFX DRV_NAME ": "
#define DFX DRV_NAME "%d: "
vdev->linkstatus_pa);
if (vdev->stats)
pci_free_consistent(vdev->pdev,
- sizeof(struct vnic_dev),
+ sizeof(struct vnic_stats),
vdev->stats, vdev->stats_pa);
if (vdev->fw_info)
pci_free_consistent(vdev->pdev,
module_param(hpsa_allow_any, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(hpsa_allow_any,
"Allow hpsa driver to access unknown HP Smart Array hardware");
+static int hpsa_simple_mode;
+module_param(hpsa_simple_mode, int, S_IRUGO|S_IWUSR);
+MODULE_PARM_DESC(hpsa_simple_mode,
+ "Use 'simple mode' rather than 'performant mode'");
/* define the PCI info for the cards we can control */
static const struct pci_device_id hpsa_pci_device_id[] = {
{PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSE, 0x103C, 0x324a},
{PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSE, 0x103C, 0x324b},
{PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSE, 0x103C, 0x3233},
- {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSE, 0x103C, 0x3250},
- {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSE, 0x103C, 0x3251},
- {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSE, 0x103C, 0x3252},
- {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSE, 0x103C, 0x3253},
- {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSE, 0x103C, 0x3254},
+ {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSF, 0x103C, 0x3350},
+ {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSF, 0x103C, 0x3351},
+ {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSF, 0x103C, 0x3352},
+ {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSF, 0x103C, 0x3353},
+ {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSF, 0x103C, 0x3354},
+ {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSF, 0x103C, 0x3355},
+ {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSF, 0x103C, 0x3356},
{PCI_VENDOR_ID_HP, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
PCI_CLASS_STORAGE_RAID << 8, 0xffff << 8, 0},
{0,}
{0x3249103C, "Smart Array P812", &SA5_access},
{0x324a103C, "Smart Array P712m", &SA5_access},
{0x324b103C, "Smart Array P711m", &SA5_access},
- {0x3250103C, "Smart Array", &SA5_access},
- {0x3250113C, "Smart Array", &SA5_access},
- {0x3250123C, "Smart Array", &SA5_access},
- {0x3250133C, "Smart Array", &SA5_access},
- {0x3250143C, "Smart Array", &SA5_access},
+ {0x3350103C, "Smart Array", &SA5_access},
+ {0x3351103C, "Smart Array", &SA5_access},
+ {0x3352103C, "Smart Array", &SA5_access},
+ {0x3353103C, "Smart Array", &SA5_access},
+ {0x3354103C, "Smart Array", &SA5_access},
+ {0x3355103C, "Smart Array", &SA5_access},
+ {0x3356103C, "Smart Array", &SA5_access},
{0xFFFF103C, "Unknown Smart Array", &SA5_access},
};
static int hpsa_slave_alloc(struct scsi_device *sdev);
static void hpsa_slave_destroy(struct scsi_device *sdev);
-static ssize_t raid_level_show(struct device *dev,
- struct device_attribute *attr, char *buf);
-static ssize_t lunid_show(struct device *dev,
- struct device_attribute *attr, char *buf);
-static ssize_t unique_id_show(struct device *dev,
- struct device_attribute *attr, char *buf);
-static ssize_t host_show_firmware_revision(struct device *dev,
- struct device_attribute *attr, char *buf);
static void hpsa_update_scsi_devices(struct ctlr_info *h, int hostno);
-static ssize_t host_store_rescan(struct device *dev,
- struct device_attribute *attr, const char *buf, size_t count);
static int check_for_unit_attention(struct ctlr_info *h,
struct CommandList *c);
static void check_ioctl_unit_attention(struct ctlr_info *h,
static int __devinit hpsa_pci_find_memory_BAR(struct pci_dev *pdev,
unsigned long *memory_bar);
static int __devinit hpsa_lookup_board_id(struct pci_dev *pdev, u32 *board_id);
-
-static DEVICE_ATTR(raid_level, S_IRUGO, raid_level_show, NULL);
-static DEVICE_ATTR(lunid, S_IRUGO, lunid_show, NULL);
-static DEVICE_ATTR(unique_id, S_IRUGO, unique_id_show, NULL);
-static DEVICE_ATTR(rescan, S_IWUSR, NULL, host_store_rescan);
-static DEVICE_ATTR(firmware_revision, S_IRUGO,
- host_show_firmware_revision, NULL);
-
-static struct device_attribute *hpsa_sdev_attrs[] = {
- &dev_attr_raid_level,
- &dev_attr_lunid,
- &dev_attr_unique_id,
- NULL,
-};
-
-static struct device_attribute *hpsa_shost_attrs[] = {
- &dev_attr_rescan,
- &dev_attr_firmware_revision,
- NULL,
-};
-
-static struct scsi_host_template hpsa_driver_template = {
- .module = THIS_MODULE,
- .name = "hpsa",
- .proc_name = "hpsa",
- .queuecommand = hpsa_scsi_queue_command,
- .scan_start = hpsa_scan_start,
- .scan_finished = hpsa_scan_finished,
- .change_queue_depth = hpsa_change_queue_depth,
- .this_id = -1,
- .use_clustering = ENABLE_CLUSTERING,
- .eh_device_reset_handler = hpsa_eh_device_reset_handler,
- .ioctl = hpsa_ioctl,
- .slave_alloc = hpsa_slave_alloc,
- .slave_destroy = hpsa_slave_destroy,
-#ifdef CONFIG_COMPAT
- .compat_ioctl = hpsa_compat_ioctl,
-#endif
- .sdev_attrs = hpsa_sdev_attrs,
- .shost_attrs = hpsa_shost_attrs,
-};
+static int __devinit hpsa_wait_for_board_state(struct pci_dev *pdev,
+ void __iomem *vaddr, int wait_for_ready);
+#define BOARD_NOT_READY 0
+#define BOARD_READY 1
static inline struct ctlr_info *sdev_to_hba(struct scsi_device *sdev)
{
fwrev[0], fwrev[1], fwrev[2], fwrev[3]);
}
-/* Enqueuing and dequeuing functions for cmdlists. */
-static inline void addQ(struct hlist_head *list, struct CommandList *c)
+static ssize_t host_show_commands_outstanding(struct device *dev,
+ struct device_attribute *attr, char *buf)
{
- hlist_add_head(&c->list, list);
+ struct Scsi_Host *shost = class_to_shost(dev);
+ struct ctlr_info *h = shost_to_hba(shost);
+
+ return snprintf(buf, 20, "%d\n", h->commands_outstanding);
}
-static inline u32 next_command(struct ctlr_info *h)
+static ssize_t host_show_transport_mode(struct device *dev,
+ struct device_attribute *attr, char *buf)
{
- u32 a;
-
- if (unlikely(h->transMethod != CFGTBL_Trans_Performant))
- return h->access.command_completed(h);
+ struct ctlr_info *h;
+ struct Scsi_Host *shost = class_to_shost(dev);
- if ((*(h->reply_pool_head) & 1) == (h->reply_pool_wraparound)) {
- a = *(h->reply_pool_head); /* Next cmd in ring buffer */
- (h->reply_pool_head)++;
- h->commands_outstanding--;
- } else {
- a = FIFO_EMPTY;
- }
- /* Check for wraparound */
- if (h->reply_pool_head == (h->reply_pool + h->max_commands)) {
- h->reply_pool_head = h->reply_pool;
- h->reply_pool_wraparound ^= 1;
- }
- return a;
+ h = shost_to_hba(shost);
+ return snprintf(buf, 20, "%s\n",
+ h->transMethod & CFGTBL_Trans_Performant ?
+ "performant" : "simple");
}
-/* set_performant_mode: Modify the tag for cciss performant
- * set bit 0 for pull model, bits 3-1 for block fetch
- * register number
- */
-static void set_performant_mode(struct ctlr_info *h, struct CommandList *c)
-{
- if (likely(h->transMethod == CFGTBL_Trans_Performant))
- c->busaddr |= 1 | (h->blockFetchTable[c->Header.SGList] << 1);
-}
+/* List of controllers which cannot be reset on kexec with reset_devices */
+static u32 unresettable_controller[] = {
+ 0x324a103C, /* Smart Array P712m */
+ 0x324b103C, /* SmartArray P711m */
+ 0x3223103C, /* Smart Array P800 */
+ 0x3234103C, /* Smart Array P400 */
+ 0x3235103C, /* Smart Array P400i */
+ 0x3211103C, /* Smart Array E200i */
+ 0x3212103C, /* Smart Array E200 */
+ 0x3213103C, /* Smart Array E200i */
+ 0x3214103C, /* Smart Array E200i */
+ 0x3215103C, /* Smart Array E200i */
+ 0x3237103C, /* Smart Array E500 */
+ 0x323D103C, /* Smart Array P700m */
+ 0x409C0E11, /* Smart Array 6400 */
+ 0x409D0E11, /* Smart Array 6400 EM */
+};
-static void enqueue_cmd_and_start_io(struct ctlr_info *h,
- struct CommandList *c)
+static int ctlr_is_resettable(struct ctlr_info *h)
{
- unsigned long flags;
+ int i;
- set_performant_mode(h, c);
- spin_lock_irqsave(&h->lock, flags);
- addQ(&h->reqQ, c);
- h->Qdepth++;
- start_io(h);
- spin_unlock_irqrestore(&h->lock, flags);
+ for (i = 0; i < ARRAY_SIZE(unresettable_controller); i++)
+ if (unresettable_controller[i] == h->board_id)
+ return 0;
+ return 1;
}
-static inline void removeQ(struct CommandList *c)
+static ssize_t host_show_resettable(struct device *dev,
+ struct device_attribute *attr, char *buf)
{
- if (WARN_ON(hlist_unhashed(&c->list)))
- return;
- hlist_del_init(&c->list);
-}
+ struct ctlr_info *h;
+ struct Scsi_Host *shost = class_to_shost(dev);
-static inline int is_hba_lunid(unsigned char scsi3addr[])
-{
- return memcmp(scsi3addr, RAID_CTLR_LUNID, 8) == 0;
+ h = shost_to_hba(shost);
+ return snprintf(buf, 20, "%d\n", ctlr_is_resettable(h));
}
static inline int is_logical_dev_addr_mode(unsigned char scsi3addr[])
return (scsi3addr[3] & 0xC0) == 0x40;
}
-static inline int is_scsi_rev_5(struct ctlr_info *h)
-{
- if (!h->hba_inquiry_data)
- return 0;
- if ((h->hba_inquiry_data[2] & 0x07) == 5)
- return 1;
- return 0;
-}
-
static const char *raid_label[] = { "0", "4", "1(1+0)", "5", "5+1", "ADG",
"UNKNOWN"
};
sn[12], sn[13], sn[14], sn[15]);
}
+static DEVICE_ATTR(raid_level, S_IRUGO, raid_level_show, NULL);
+static DEVICE_ATTR(lunid, S_IRUGO, lunid_show, NULL);
+static DEVICE_ATTR(unique_id, S_IRUGO, unique_id_show, NULL);
+static DEVICE_ATTR(rescan, S_IWUSR, NULL, host_store_rescan);
+static DEVICE_ATTR(firmware_revision, S_IRUGO,
+ host_show_firmware_revision, NULL);
+static DEVICE_ATTR(commands_outstanding, S_IRUGO,
+ host_show_commands_outstanding, NULL);
+static DEVICE_ATTR(transport_mode, S_IRUGO,
+ host_show_transport_mode, NULL);
+static DEVICE_ATTR(resettable, S_IRUGO,
+ host_show_resettable, NULL);
+
+static struct device_attribute *hpsa_sdev_attrs[] = {
+ &dev_attr_raid_level,
+ &dev_attr_lunid,
+ &dev_attr_unique_id,
+ NULL,
+};
+
+static struct device_attribute *hpsa_shost_attrs[] = {
+ &dev_attr_rescan,
+ &dev_attr_firmware_revision,
+ &dev_attr_commands_outstanding,
+ &dev_attr_transport_mode,
+ &dev_attr_resettable,
+ NULL,
+};
+
+static struct scsi_host_template hpsa_driver_template = {
+ .module = THIS_MODULE,
+ .name = "hpsa",
+ .proc_name = "hpsa",
+ .queuecommand = hpsa_scsi_queue_command,
+ .scan_start = hpsa_scan_start,
+ .scan_finished = hpsa_scan_finished,
+ .change_queue_depth = hpsa_change_queue_depth,
+ .this_id = -1,
+ .use_clustering = ENABLE_CLUSTERING,
+ .eh_device_reset_handler = hpsa_eh_device_reset_handler,
+ .ioctl = hpsa_ioctl,
+ .slave_alloc = hpsa_slave_alloc,
+ .slave_destroy = hpsa_slave_destroy,
+#ifdef CONFIG_COMPAT
+ .compat_ioctl = hpsa_compat_ioctl,
+#endif
+ .sdev_attrs = hpsa_sdev_attrs,
+ .shost_attrs = hpsa_shost_attrs,
+};
+
+
+/* Enqueuing and dequeuing functions for cmdlists. */
+static inline void addQ(struct list_head *list, struct CommandList *c)
+{
+ list_add_tail(&c->list, list);
+}
+
+static inline u32 next_command(struct ctlr_info *h)
+{
+ u32 a;
+
+ if (unlikely(!(h->transMethod & CFGTBL_Trans_Performant)))
+ return h->access.command_completed(h);
+
+ if ((*(h->reply_pool_head) & 1) == (h->reply_pool_wraparound)) {
+ a = *(h->reply_pool_head); /* Next cmd in ring buffer */
+ (h->reply_pool_head)++;
+ h->commands_outstanding--;
+ } else {
+ a = FIFO_EMPTY;
+ }
+ /* Check for wraparound */
+ if (h->reply_pool_head == (h->reply_pool + h->max_commands)) {
+ h->reply_pool_head = h->reply_pool;
+ h->reply_pool_wraparound ^= 1;
+ }
+ return a;
+}
+
+/* set_performant_mode: Modify the tag for cciss performant
+ * set bit 0 for pull model, bits 3-1 for block fetch
+ * register number
+ */
+static void set_performant_mode(struct ctlr_info *h, struct CommandList *c)
+{
+ if (likely(h->transMethod & CFGTBL_Trans_Performant))
+ c->busaddr |= 1 | (h->blockFetchTable[c->Header.SGList] << 1);
+}
+
+static void enqueue_cmd_and_start_io(struct ctlr_info *h,
+ struct CommandList *c)
+{
+ unsigned long flags;
+
+ set_performant_mode(h, c);
+ spin_lock_irqsave(&h->lock, flags);
+ addQ(&h->reqQ, c);
+ h->Qdepth++;
+ start_io(h);
+ spin_unlock_irqrestore(&h->lock, flags);
+}
+
+static inline void removeQ(struct CommandList *c)
+{
+ if (WARN_ON(list_empty(&c->list)))
+ return;
+ list_del_init(&c->list);
+}
+
+static inline int is_hba_lunid(unsigned char scsi3addr[])
+{
+ return memcmp(scsi3addr, RAID_CTLR_LUNID, 8) == 0;
+}
+
+static inline int is_scsi_rev_5(struct ctlr_info *h)
+{
+ if (!h->hba_inquiry_data)
+ return 0;
+ if ((h->hba_inquiry_data[2] & 0x07) == 5)
+ return 1;
+ return 0;
+}
+
static int hpsa_find_target_lun(struct ctlr_info *h,
unsigned char scsi3addr[], int bus, int *target, int *lun)
{
cmd->result = DID_TIME_OUT << 16;
dev_warn(&h->pdev->dev, "cp %p timedout\n", cp);
break;
+ case CMD_UNABORTABLE:
+ cmd->result = DID_ERROR << 16;
+ dev_warn(&h->pdev->dev, "Command unabortable\n");
+ break;
default:
cmd->result = DID_ERROR << 16;
dev_warn(&h->pdev->dev, "cp %p returned unknown status %x\n",
sh->sg_tablesize = h->maxsgentries;
h->scsi_host = sh;
sh->hostdata[0] = (unsigned long) h;
- sh->irq = h->intr[PERF_MODE_INT];
+ sh->irq = h->intr[h->intr_mode];
sh->unique_id = sh->irq;
error = scsi_add_host(sh, &h->pdev->dev);
if (error)
case CMD_TIMEOUT:
dev_warn(d, "cp %p timed out\n", cp);
break;
+ case CMD_UNABORTABLE:
+ dev_warn(d, "Command unabortable\n");
+ break;
default:
dev_warn(d, "cp %p returned unknown status %x\n", cp,
ei->CommandStatus);
if (lun == 0) /* if lun is 0, then obviously we have a lun 0. */
return 0;
+ memset(scsi3addr, 0, 8);
+ scsi3addr[3] = target;
if (is_hba_lunid(scsi3addr))
return 0; /* Don't add the RAID controller here. */
return 0;
}
- memset(scsi3addr, 0, 8);
- scsi3addr[3] = target;
if (hpsa_update_device_info(h, scsi3addr, this_device))
return 0;
(*nmsa2xxx_enclosures)++;
c->cmdindex = i;
- INIT_HLIST_NODE(&c->list);
+ INIT_LIST_HEAD(&c->list);
c->busaddr = (u32) cmd_dma_handle;
temp64.val = (u64) err_dma_handle;
c->ErrDesc.Addr.lower = temp64.val32.lower;
}
memset(c->err_info, 0, sizeof(*c->err_info));
- INIT_HLIST_NODE(&c->list);
+ INIT_LIST_HEAD(&c->list);
c->busaddr = (u32) cmd_dma_handle;
temp64.val = (u64) err_dma_handle;
c->ErrDesc.Addr.lower = temp64.val32.lower;
pci_free_consistent(h->pdev, sizeof(*c->err_info),
c->err_info, (dma_addr_t) temp64.val);
pci_free_consistent(h->pdev, sizeof(*c),
- c, (dma_addr_t) c->busaddr);
+ c, (dma_addr_t) (c->busaddr & DIRECT_LOOKUP_MASK));
}
#ifdef CONFIG_COMPAT
int err;
u32 cp;
+ memset(&arg64, 0, sizeof(arg64));
err = 0;
err |= copy_from_user(&arg64.LUN_info, &arg32->LUN_info,
sizeof(arg64.LUN_info));
int err;
u32 cp;
+ memset(&arg64, 0, sizeof(arg64));
err = 0;
err |= copy_from_user(&arg64.LUN_info, &arg32->LUN_info,
sizeof(arg64.LUN_info));
buff = kmalloc(iocommand.buf_size, GFP_KERNEL);
if (buff == NULL)
return -EFAULT;
- }
- if (iocommand.Request.Type.Direction == XFER_WRITE) {
- /* Copy the data into the buffer we created */
- if (copy_from_user(buff, iocommand.buf, iocommand.buf_size)) {
- kfree(buff);
- return -EFAULT;
+ if (iocommand.Request.Type.Direction == XFER_WRITE) {
+ /* Copy the data into the buffer we created */
+ if (copy_from_user(buff, iocommand.buf,
+ iocommand.buf_size)) {
+ kfree(buff);
+ return -EFAULT;
+ }
+ } else {
+ memset(buff, 0, iocommand.buf_size);
}
- } else
- memset(buff, 0, iocommand.buf_size);
+ }
c = cmd_special_alloc(h);
if (c == NULL) {
kfree(buff);
cmd_special_free(h, c);
return -EFAULT;
}
-
- if (iocommand.Request.Type.Direction == XFER_READ) {
+ if (iocommand.Request.Type.Direction == XFER_READ &&
+ iocommand.buf_size > 0) {
/* Copy the data out of the buffer we created */
if (copy_to_user(iocommand.buf, buff, iocommand.buf_size)) {
kfree(buff);
}
c->cmd_type = CMD_IOCTL_PEND;
c->Header.ReplyQueue = 0;
-
- if (ioc->buf_size > 0) {
- c->Header.SGList = sg_used;
- c->Header.SGTotal = sg_used;
- } else {
- c->Header.SGList = 0;
- c->Header.SGTotal = 0;
- }
+ c->Header.SGList = c->Header.SGTotal = sg_used;
memcpy(&c->Header.LUN, &ioc->LUN_info, sizeof(c->Header.LUN));
c->Header.Tag.lower = c->busaddr;
memcpy(&c->Request, &ioc->Request, sizeof(c->Request));
}
}
hpsa_scsi_do_simple_cmd_core(h, c);
- hpsa_pci_unmap(h->pdev, c, sg_used, PCI_DMA_BIDIRECTIONAL);
+ if (sg_used)
+ hpsa_pci_unmap(h->pdev, c, sg_used, PCI_DMA_BIDIRECTIONAL);
check_ioctl_unit_attention(h, c);
/* Copy the error information out */
memcpy(&ioc->error_info, c->err_info, sizeof(ioc->error_info));
status = -EFAULT;
goto cleanup1;
}
- if (ioc->Request.Type.Direction == XFER_READ) {
+ if (ioc->Request.Type.Direction == XFER_READ && ioc->buf_size > 0) {
/* Copy the data out of the buffer we created */
BYTE __user *ptr = ioc->buf;
for (i = 0; i < sg_used; i++) {
{
struct CommandList *c;
- while (!hlist_empty(&h->reqQ)) {
- c = hlist_entry(h->reqQ.first, struct CommandList, list);
+ while (!list_empty(&h->reqQ)) {
+ c = list_entry(h->reqQ.next, struct CommandList, list);
/* can't do anything if fifo is full */
if ((h->access.fifo_full(h))) {
dev_warn(&h->pdev->dev, "fifo full\n");
static inline u32 hpsa_tag_contains_index(u32 tag)
{
-#define DIRECT_LOOKUP_BIT 0x10
return tag & DIRECT_LOOKUP_BIT;
}
static inline u32 hpsa_tag_to_index(u32 tag)
{
-#define DIRECT_LOOKUP_SHIFT 5
return tag >> DIRECT_LOOKUP_SHIFT;
}
-static inline u32 hpsa_tag_discard_error_bits(u32 tag)
+
+static inline u32 hpsa_tag_discard_error_bits(struct ctlr_info *h, u32 tag)
{
-#define HPSA_ERROR_BITS 0x03
- return tag & ~HPSA_ERROR_BITS;
+#define HPSA_PERF_ERROR_BITS ((1 << DIRECT_LOOKUP_SHIFT) - 1)
+#define HPSA_SIMPLE_ERROR_BITS 0x03
+ if (unlikely(!(h->transMethod & CFGTBL_Trans_Performant)))
+ return tag & ~HPSA_SIMPLE_ERROR_BITS;
+ return tag & ~HPSA_PERF_ERROR_BITS;
}
/* process completion of an indexed ("direct lookup") command */
{
u32 tag;
struct CommandList *c = NULL;
- struct hlist_node *tmp;
- tag = hpsa_tag_discard_error_bits(raw_tag);
- hlist_for_each_entry(c, tmp, &h->cmpQ, list) {
+ tag = hpsa_tag_discard_error_bits(h, raw_tag);
+ list_for_each_entry(c, &h->cmpQ, list) {
if ((c->busaddr & 0xFFFFFFE0) == (tag & 0xFFFFFFE0)) {
finish_cmd(c, raw_tag);
return next_command(h);
return IRQ_HANDLED;
}
-/* Send a message CDB to the firmware. */
+/* Send a message CDB to the firmware. Careful, this only works
+ * in simple mode, not performant mode due to the tag lookup.
+ * We only ever use this immediately after a controller reset.
+ */
static __devinit int hpsa_message(struct pci_dev *pdev, unsigned char opcode,
unsigned char type)
{
for (i = 0; i < HPSA_MSG_SEND_RETRY_LIMIT; i++) {
tag = readl(vaddr + SA5_REPLY_PORT_OFFSET);
- if (hpsa_tag_discard_error_bits(tag) == paddr32)
+ if ((tag & ~HPSA_SIMPLE_ERROR_BITS) == paddr32)
break;
msleep(HPSA_MSG_SEND_RETRY_INTERVAL_MSECS);
}
#define hpsa_soft_reset_controller(p) hpsa_message(p, 1, 0)
#define hpsa_noop(p) hpsa_message(p, 3, 0)
-static __devinit int hpsa_reset_msi(struct pci_dev *pdev)
-{
-/* the #defines are stolen from drivers/pci/msi.h. */
-#define msi_control_reg(base) (base + PCI_MSI_FLAGS)
-#define PCI_MSIX_FLAGS_ENABLE (1 << 15)
-
- int pos;
- u16 control = 0;
-
- pos = pci_find_capability(pdev, PCI_CAP_ID_MSI);
- if (pos) {
- pci_read_config_word(pdev, msi_control_reg(pos), &control);
- if (control & PCI_MSI_FLAGS_ENABLE) {
- dev_info(&pdev->dev, "resetting MSI\n");
- pci_write_config_word(pdev, msi_control_reg(pos),
- control & ~PCI_MSI_FLAGS_ENABLE);
- }
- }
-
- pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
- if (pos) {
- pci_read_config_word(pdev, msi_control_reg(pos), &control);
- if (control & PCI_MSIX_FLAGS_ENABLE) {
- dev_info(&pdev->dev, "resetting MSI-X\n");
- pci_write_config_word(pdev, msi_control_reg(pos),
- control & ~PCI_MSIX_FLAGS_ENABLE);
- }
- }
-
- return 0;
-}
-
static int hpsa_controller_hard_reset(struct pci_dev *pdev,
void * __iomem vaddr, bool use_doorbell)
{
*/
static __devinit int hpsa_kdump_hard_reset_controller(struct pci_dev *pdev)
{
- u16 saved_config_space[32];
u64 cfg_offset;
u32 cfg_base_addr;
u64 cfg_base_addr_index;
void __iomem *vaddr;
unsigned long paddr;
u32 misc_fw_support, active_transport;
- int rc, i;
+ int rc;
struct CfgTable __iomem *cfgtable;
bool use_doorbell;
u32 board_id;
+ u16 command_register;
/* For controllers as old as the P600, this is very nearly
* the same thing as
* pci_set_power_state(pci_dev, PCI_D0);
* pci_restore_state(pci_dev);
*
- * but we can't use these nice canned kernel routines on
- * kexec, because they also check the MSI/MSI-X state in PCI
- * configuration space and do the wrong thing when it is
- * set/cleared. Also, the pci_save/restore_state functions
- * violate the ordering requirements for restoring the
- * configuration space from the CCISS document (see the
- * comment below). So we roll our own ....
- *
* For controllers newer than the P600, the pci power state
* method of resetting doesn't work so we have another way
* using the doorbell register.
* likely not be happy. Just forbid resetting this conjoined mess.
* The 640x isn't really supported by hpsa anyway.
*/
- hpsa_lookup_board_id(pdev, &board_id);
+ rc = hpsa_lookup_board_id(pdev, &board_id);
+ if (rc < 0) {
+ dev_warn(&pdev->dev, "Not resetting device.\n");
+ return -ENODEV;
+ }
if (board_id == 0x409C0E11 || board_id == 0x409D0E11)
return -ENOTSUPP;
- for (i = 0; i < 32; i++)
- pci_read_config_word(pdev, 2*i, &saved_config_space[i]);
-
+ /* Save the PCI command register */
+ pci_read_config_word(pdev, 4, &command_register);
+ /* Turn the board off. This is so that later pci_restore_state()
+ * won't turn the board on before the rest of config space is ready.
+ */
+ pci_disable_device(pdev);
+ pci_save_state(pdev);
/* find the first memory BAR, so we can find the cfg table */
rc = hpsa_pci_find_memory_BAR(pdev, &paddr);
misc_fw_support = readl(&cfgtable->misc_fw_support);
use_doorbell = misc_fw_support & MISC_FW_DOORBELL_RESET;
- /* The doorbell reset seems to cause lockups on some Smart
- * Arrays (e.g. P410, P410i, maybe others). Until this is
- * fixed or at least isolated, avoid the doorbell reset.
- */
- use_doorbell = 0;
-
rc = hpsa_controller_hard_reset(pdev, vaddr, use_doorbell);
if (rc)
goto unmap_cfgtable;
- /* Restore the PCI configuration space. The Open CISS
- * Specification says, "Restore the PCI Configuration
- * Registers, offsets 00h through 60h. It is important to
- * restore the command register, 16-bits at offset 04h,
- * last. Do not restore the configuration status register,
- * 16-bits at offset 06h." Note that the offset is 2*i.
- */
- for (i = 0; i < 32; i++) {
- if (i == 2 || i == 3)
- continue;
- pci_write_config_word(pdev, 2*i, saved_config_space[i]);
+ pci_restore_state(pdev);
+ rc = pci_enable_device(pdev);
+ if (rc) {
+ dev_warn(&pdev->dev, "failed to enable device.\n");
+ goto unmap_cfgtable;
}
- wmb();
- pci_write_config_word(pdev, 4, saved_config_space[2]);
+ pci_write_config_word(pdev, 4, command_register);
/* Some devices (notably the HP Smart Array 5i Controller)
need a little pause here */
msleep(HPSA_POST_RESET_PAUSE_MSECS);
+ /* Wait for board to become not ready, then ready. */
+ dev_info(&pdev->dev, "Waiting for board to become ready.\n");
+ rc = hpsa_wait_for_board_state(pdev, vaddr, BOARD_NOT_READY);
+ if (rc)
+ dev_warn(&pdev->dev,
+ "failed waiting for board to become not ready\n");
+ rc = hpsa_wait_for_board_state(pdev, vaddr, BOARD_READY);
+ if (rc) {
+ dev_warn(&pdev->dev,
+ "failed waiting for board to become ready\n");
+ goto unmap_cfgtable;
+ }
+ dev_info(&pdev->dev, "board ready.\n");
+
/* Controller should be in simple mode at this point. If it's not,
* It means we're on one of those controllers which doesn't support
* the doorbell reset method and on which the PCI power management reset
* method doesn't work (P800, for example.)
- * In those cases, pretend the reset worked and hope for the best.
+ * In those cases, don't try to proceed, as it generally doesn't work.
*/
active_transport = readl(&cfgtable->TransportActive);
if (active_transport & PERFORMANT_MODE) {
dev_warn(&pdev->dev, "Unable to successfully reset controller,"
- " proceeding anyway.\n");
- rc = -ENOTSUPP;
+ " Ignoring controller.\n");
+ rc = -ENODEV;
}
unmap_cfgtable:
default_int_mode:
#endif /* CONFIG_PCI_MSI */
/* if we get here we're going to use the default interrupt mode */
- h->intr[PERF_MODE_INT] = h->pdev->irq;
+ h->intr[h->intr_mode] = h->pdev->irq;
}
static int __devinit hpsa_lookup_board_id(struct pci_dev *pdev, u32 *board_id)
return -ENODEV;
}
-static int __devinit hpsa_wait_for_board_ready(struct ctlr_info *h)
+static int __devinit hpsa_wait_for_board_state(struct pci_dev *pdev,
+ void __iomem *vaddr, int wait_for_ready)
{
- int i;
+ int i, iterations;
u32 scratchpad;
+ if (wait_for_ready)
+ iterations = HPSA_BOARD_READY_ITERATIONS;
+ else
+ iterations = HPSA_BOARD_NOT_READY_ITERATIONS;
- for (i = 0; i < HPSA_BOARD_READY_ITERATIONS; i++) {
- scratchpad = readl(h->vaddr + SA5_SCRATCHPAD_OFFSET);
- if (scratchpad == HPSA_FIRMWARE_READY)
- return 0;
+ for (i = 0; i < iterations; i++) {
+ scratchpad = readl(vaddr + SA5_SCRATCHPAD_OFFSET);
+ if (wait_for_ready) {
+ if (scratchpad == HPSA_FIRMWARE_READY)
+ return 0;
+ } else {
+ if (scratchpad != HPSA_FIRMWARE_READY)
+ return 0;
+ }
msleep(HPSA_BOARD_READY_POLL_INTERVAL_MSECS);
}
- dev_warn(&h->pdev->dev, "board not ready, timed out.\n");
+ dev_warn(&pdev->dev, "board not ready, timed out.\n");
return -ENODEV;
}
static void __devinit hpsa_get_max_perf_mode_cmds(struct ctlr_info *h)
{
h->max_commands = readl(&(h->cfgtable->MaxPerformantModeCommands));
+
+ /* Limit commands in memory limited kdump scenario. */
+ if (reset_devices && h->max_commands > 32)
+ h->max_commands = 32;
+
if (h->max_commands < 16) {
dev_warn(&h->pdev->dev, "Controller reports "
"max supported commands of %d, an obvious lie. "
static void __devinit hpsa_wait_for_mode_change_ack(struct ctlr_info *h)
{
int i;
+ u32 doorbell_value;
+ unsigned long flags;
/* under certain very rare conditions, this can take awhile.
* (e.g.: hot replace a failed 144GB drive in a RAID 5 set right
* as we enter this code.)
*/
for (i = 0; i < MAX_CONFIG_WAIT; i++) {
- if (!(readl(h->vaddr + SA5_DOORBELL) & CFGTBL_ChangeReq))
+ spin_lock_irqsave(&h->lock, flags);
+ doorbell_value = readl(h->vaddr + SA5_DOORBELL);
+ spin_unlock_irqrestore(&h->lock, flags);
+ if (!(doorbell_value & CFGTBL_ChangeReq))
break;
/* delay and try again */
- msleep(10);
+ usleep_range(10000, 20000);
}
}
"unable to get board into simple mode\n");
return -ENODEV;
}
+ h->transMethod = CFGTBL_Trans_Simple;
return 0;
}
err = -ENOMEM;
goto err_out_free_res;
}
- err = hpsa_wait_for_board_ready(h);
+ err = hpsa_wait_for_board_state(h->pdev, h->vaddr, BOARD_READY);
if (err)
goto err_out_free_res;
err = hpsa_find_cfgtables(h);
return 0; /* just try to do the kdump anyhow. */
if (rc)
return -ENODEV;
- if (hpsa_reset_msi(pdev))
- return -ENODEV;
/* Now try to get the controller to respond to a no-op */
for (i = 0; i < HPSA_POST_RESET_NOOP_RETRIES; i++) {
h->pdev = pdev;
h->busy_initializing = 1;
- INIT_HLIST_HEAD(&h->cmpQ);
- INIT_HLIST_HEAD(&h->reqQ);
+ h->intr_mode = hpsa_simple_mode ? SIMPLE_MODE_INT : PERF_MODE_INT;
+ INIT_LIST_HEAD(&h->cmpQ);
+ INIT_LIST_HEAD(&h->reqQ);
+ spin_lock_init(&h->lock);
+ spin_lock_init(&h->scan_lock);
rc = hpsa_pci_init(h);
if (rc != 0)
goto clean1;
h->access.set_intr_mask(h, HPSA_INTR_OFF);
if (h->msix_vector || h->msi_vector)
- rc = request_irq(h->intr[PERF_MODE_INT], do_hpsa_intr_msi,
+ rc = request_irq(h->intr[h->intr_mode], do_hpsa_intr_msi,
IRQF_DISABLED, h->devname, h);
else
- rc = request_irq(h->intr[PERF_MODE_INT], do_hpsa_intr_intx,
+ rc = request_irq(h->intr[h->intr_mode], do_hpsa_intr_intx,
IRQF_DISABLED, h->devname, h);
if (rc) {
dev_err(&pdev->dev, "unable to get irq %d for %s\n",
- h->intr[PERF_MODE_INT], h->devname);
+ h->intr[h->intr_mode], h->devname);
goto clean2;
}
dev_info(&pdev->dev, "%s: <0x%x> at IRQ %d%s using DAC\n",
h->devname, pdev->device,
- h->intr[PERF_MODE_INT], dac ? "" : " not");
+ h->intr[h->intr_mode], dac ? "" : " not");
h->cmd_pool_bits =
kmalloc(((h->nr_cmds + BITS_PER_LONG -
}
if (hpsa_allocate_sg_chain_blocks(h))
goto clean4;
- spin_lock_init(&h->lock);
- spin_lock_init(&h->scan_lock);
init_waitqueue_head(&h->scan_wait_queue);
h->scan_finished = 1; /* no scan currently in progress */
h->nr_cmds * sizeof(struct ErrorInfo),
h->errinfo_pool,
h->errinfo_pool_dhandle);
- free_irq(h->intr[PERF_MODE_INT], h);
+ free_irq(h->intr[h->intr_mode], h);
clean2:
clean1:
h->busy_initializing = 0;
*/
hpsa_flush_cache(h);
h->access.set_intr_mask(h, HPSA_INTR_OFF);
- free_irq(h->intr[PERF_MODE_INT], h);
+ free_irq(h->intr[h->intr_mode], h);
#ifdef CONFIG_PCI_MSI
if (h->msix_vector)
pci_disable_msix(h->pdev);
}
}
-static __devinit void hpsa_enter_performant_mode(struct ctlr_info *h)
+static __devinit void hpsa_enter_performant_mode(struct ctlr_info *h,
+ u32 use_short_tags)
{
int i;
unsigned long register_value;
writel(0, &h->transtable->RepQCtrAddrHigh32);
writel(h->reply_pool_dhandle, &h->transtable->RepQAddr0Low32);
writel(0, &h->transtable->RepQAddr0High32);
- writel(CFGTBL_Trans_Performant,
+ writel(CFGTBL_Trans_Performant | use_short_tags,
&(h->cfgtable->HostWrite.TransportRequest));
writel(CFGTBL_ChangeReq, h->vaddr + SA5_DOORBELL);
hpsa_wait_for_mode_change_ack(h);
" performant mode\n");
return;
}
+ /* Change the access methods to the performant access methods */
+ h->access = SA5_performant_access;
+ h->transMethod = CFGTBL_Trans_Performant;
}
static __devinit void hpsa_put_ctlr_into_performant_mode(struct ctlr_info *h)
{
u32 trans_support;
+ if (hpsa_simple_mode)
+ return;
+
trans_support = readl(&(h->cfgtable->TransportSupport));
if (!(trans_support & PERFORMANT_MODE))
return;
|| (h->blockFetchTable == NULL))
goto clean_up;
- hpsa_enter_performant_mode(h);
-
- /* Change the access methods to the performant access methods */
- h->access = SA5_performant_access;
- h->transMethod = CFGTBL_Trans_Performant;
+ hpsa_enter_performant_mode(h,
+ trans_support & CFGTBL_Trans_use_short_tags);
return;
unsigned int intr[4];
unsigned int msix_vector;
unsigned int msi_vector;
+ int intr_mode; /* either PERF_MODE_INT or SIMPLE_MODE_INT */
struct access_method access;
/* queue and queue Info */
- struct hlist_head reqQ;
- struct hlist_head cmpQ;
+ struct list_head reqQ;
+ struct list_head cmpQ;
unsigned int Qdepth;
unsigned int maxQsinceinit;
unsigned int maxSG;
* HPSA_BOARD_READY_ITERATIONS are derived from those.
*/
#define HPSA_BOARD_READY_WAIT_SECS (120)
+#define HPSA_BOARD_NOT_READY_WAIT_SECS (10)
#define HPSA_BOARD_READY_POLL_INTERVAL_MSECS (100)
#define HPSA_BOARD_READY_POLL_INTERVAL \
((HPSA_BOARD_READY_POLL_INTERVAL_MSECS * HZ) / 1000)
#define HPSA_BOARD_READY_ITERATIONS \
((HPSA_BOARD_READY_WAIT_SECS * 1000) / \
HPSA_BOARD_READY_POLL_INTERVAL_MSECS)
+#define HPSA_BOARD_NOT_READY_ITERATIONS \
+ ((HPSA_BOARD_NOT_READY_WAIT_SECS * 1000) / \
+ HPSA_BOARD_READY_POLL_INTERVAL_MSECS)
#define HPSA_POST_RESET_PAUSE_MSECS (3000)
#define HPSA_POST_RESET_NOOP_RETRIES (12)
#define CFGTBL_Trans_Simple 0x00000002l
#define CFGTBL_Trans_Performant 0x00000004l
+#define CFGTBL_Trans_use_short_tags 0x20000000l
#define CFGTBL_BusType_Ultra2 0x00000001l
#define CFGTBL_BusType_Ultra3 0x00000002l
#define DIRECT_LOOKUP_SHIFT 5
#define DIRECT_LOOKUP_BIT 0x10
+#define DIRECT_LOOKUP_MASK (~((1 << DIRECT_LOOKUP_SHIFT) - 1))
#define HPSA_ERROR_BIT 0x02
struct ctlr_info; /* defined in hpsa.h */
struct ctlr_info *h;
int cmd_type;
long cmdindex;
- struct hlist_node list;
+ struct list_head list;
struct request *rq;
struct completion *waiting;
void *scsi_cmd;
ipr_clear_res_target(res);
list_move_tail(&res->queue, &ioa_cfg->free_res_q);
}
- } else if (!res->sdev) {
+ } else if (!res->sdev || res->del_from_ml) {
res->add_to_ml = 1;
if (ioa_cfg->allow_ml_add_del)
schedule_work(&ioa_cfg->work_q);
did_work = 1;
sdev = res->sdev;
if (!scsi_device_get(sdev)) {
- list_move_tail(&res->queue, &ioa_cfg->free_res_q);
+ if (!res->add_to_ml)
+ list_move_tail(&res->queue, &ioa_cfg->free_res_q);
+ else
+ res->del_from_ml = 0;
spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
scsi_remove_device(sdev);
scsi_device_put(sdev);
spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
- flush_scheduled_work();
+ flush_work_sync(&ioa_cfg->work_q);
spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
spin_lock(&ipr_driver_lock);
iscsi_sw_tcp_release_conn(conn);
}
-static int iscsi_sw_tcp_get_addr(struct iscsi_conn *conn, struct socket *sock,
- char *buf, int *port,
- int (*getname)(struct socket *,
- struct sockaddr *,
- int *addrlen))
-{
- struct sockaddr_storage *addr;
- struct sockaddr_in6 *sin6;
- struct sockaddr_in *sin;
- int rc = 0, len;
-
- addr = kmalloc(sizeof(*addr), GFP_KERNEL);
- if (!addr)
- return -ENOMEM;
-
- if (getname(sock, (struct sockaddr *) addr, &len)) {
- rc = -ENODEV;
- goto free_addr;
- }
-
- switch (addr->ss_family) {
- case AF_INET:
- sin = (struct sockaddr_in *)addr;
- spin_lock_bh(&conn->session->lock);
- sprintf(buf, "%pI4", &sin->sin_addr.s_addr);
- *port = be16_to_cpu(sin->sin_port);
- spin_unlock_bh(&conn->session->lock);
- break;
- case AF_INET6:
- sin6 = (struct sockaddr_in6 *)addr;
- spin_lock_bh(&conn->session->lock);
- sprintf(buf, "%pI6", &sin6->sin6_addr);
- *port = be16_to_cpu(sin6->sin6_port);
- spin_unlock_bh(&conn->session->lock);
- break;
- }
-free_addr:
- kfree(addr);
- return rc;
-}
-
static int
iscsi_sw_tcp_conn_bind(struct iscsi_cls_session *cls_session,
struct iscsi_cls_conn *cls_conn, uint64_t transport_eph,
int is_leading)
{
- struct Scsi_Host *shost = iscsi_session_to_shost(cls_session);
- struct iscsi_host *ihost = shost_priv(shost);
+ struct iscsi_session *session = cls_session->dd_data;
struct iscsi_conn *conn = cls_conn->dd_data;
struct iscsi_tcp_conn *tcp_conn = conn->dd_data;
struct iscsi_sw_tcp_conn *tcp_sw_conn = tcp_conn->dd_data;
"sockfd_lookup failed %d\n", err);
return -EEXIST;
}
- /*
- * copy these values now because if we drop the session
- * userspace may still want to query the values since we will
- * be using them for the reconnect
- */
- err = iscsi_sw_tcp_get_addr(conn, sock, conn->portal_address,
- &conn->portal_port, kernel_getpeername);
- if (err)
- goto free_socket;
-
- err = iscsi_sw_tcp_get_addr(conn, sock, ihost->local_address,
- &ihost->local_port, kernel_getsockname);
- if (err)
- goto free_socket;
err = iscsi_conn_bind(cls_session, cls_conn, is_leading);
if (err)
goto free_socket;
+ spin_lock_bh(&session->lock);
/* bind iSCSI connection and socket */
tcp_sw_conn->sock = sock;
+ spin_unlock_bh(&session->lock);
/* setup Socket parameters */
sk = sock->sk;
enum iscsi_param param, char *buf)
{
struct iscsi_conn *conn = cls_conn->dd_data;
- int len;
+ struct iscsi_tcp_conn *tcp_conn = conn->dd_data;
+ struct iscsi_sw_tcp_conn *tcp_sw_conn = tcp_conn->dd_data;
+ struct sockaddr_in6 addr;
+ int rc, len;
switch(param) {
case ISCSI_PARAM_CONN_PORT:
- spin_lock_bh(&conn->session->lock);
- len = sprintf(buf, "%hu\n", conn->portal_port);
- spin_unlock_bh(&conn->session->lock);
- break;
case ISCSI_PARAM_CONN_ADDRESS:
spin_lock_bh(&conn->session->lock);
- len = sprintf(buf, "%s\n", conn->portal_address);
+ if (!tcp_sw_conn || !tcp_sw_conn->sock) {
+ spin_unlock_bh(&conn->session->lock);
+ return -ENOTCONN;
+ }
+ rc = kernel_getpeername(tcp_sw_conn->sock,
+ (struct sockaddr *)&addr, &len);
spin_unlock_bh(&conn->session->lock);
- break;
+ if (rc)
+ return rc;
+
+ return iscsi_conn_get_addr_param((struct sockaddr_storage *)
+ &addr, param, buf);
default:
return iscsi_conn_get_param(cls_conn, param, buf);
}
- return len;
+ return 0;
+}
+
+static int iscsi_sw_tcp_host_get_param(struct Scsi_Host *shost,
+ enum iscsi_host_param param, char *buf)
+{
+ struct iscsi_sw_tcp_host *tcp_sw_host = iscsi_host_priv(shost);
+ struct iscsi_session *session = tcp_sw_host->session;
+ struct iscsi_conn *conn;
+ struct iscsi_tcp_conn *tcp_conn;
+ struct iscsi_sw_tcp_conn *tcp_sw_conn;
+ struct sockaddr_in6 addr;
+ int rc, len;
+
+ switch (param) {
+ case ISCSI_HOST_PARAM_IPADDRESS:
+ spin_lock_bh(&session->lock);
+ conn = session->leadconn;
+ if (!conn) {
+ spin_unlock_bh(&session->lock);
+ return -ENOTCONN;
+ }
+ tcp_conn = conn->dd_data;
+
+ tcp_sw_conn = tcp_conn->dd_data;
+ if (!tcp_sw_conn->sock) {
+ spin_unlock_bh(&session->lock);
+ return -ENOTCONN;
+ }
+
+ rc = kernel_getsockname(tcp_sw_conn->sock,
+ (struct sockaddr *)&addr, &len);
+ spin_unlock_bh(&session->lock);
+ if (rc)
+ return rc;
+
+ return iscsi_conn_get_addr_param((struct sockaddr_storage *)
+ &addr, param, buf);
+ default:
+ return iscsi_host_get_param(shost, param, buf);
+ }
+
+ return 0;
}
static void
{
struct iscsi_cls_session *cls_session;
struct iscsi_session *session;
+ struct iscsi_sw_tcp_host *tcp_sw_host;
struct Scsi_Host *shost;
if (ep) {
return NULL;
}
- shost = iscsi_host_alloc(&iscsi_sw_tcp_sht, 0, 1);
+ shost = iscsi_host_alloc(&iscsi_sw_tcp_sht,
+ sizeof(struct iscsi_sw_tcp_host), 1);
if (!shost)
return NULL;
shost->transportt = iscsi_sw_tcp_scsi_transport;
if (!cls_session)
goto remove_host;
session = cls_session->dd_data;
+ tcp_sw_host = iscsi_host_priv(shost);
+ tcp_sw_host->session = session;
shost->can_queue = session->scsi_cmds_max;
if (iscsi_tcp_r2tpool_alloc(session))
.start_conn = iscsi_conn_start,
.stop_conn = iscsi_sw_tcp_conn_stop,
/* iscsi host params */
- .get_host_param = iscsi_host_get_param,
+ .get_host_param = iscsi_sw_tcp_host_get_param,
.set_host_param = iscsi_host_set_param,
/* IO */
.send_pdu = iscsi_conn_send_pdu,
ssize_t (*sendpage)(struct socket *, struct page *, int, size_t, int);
};
+struct iscsi_sw_tcp_host {
+ struct iscsi_session *session;
+};
+
struct iscsi_sw_tcp_hdrbuf {
struct iscsi_hdr hdrbuf;
char hdrextbuf[ISCSI_MAX_AHS_SIZE +
EXPORT_SYMBOL(fc_cpu_mask);
static u16 fc_cpu_order; /* 2's power to represent total possible cpus */
static struct kmem_cache *fc_em_cachep; /* cache for exchanges */
-struct workqueue_struct *fc_exch_workqueue;
+static struct workqueue_struct *fc_exch_workqueue;
/*
* Structure and function definitions for managing Fibre Channel Exchanges
return sp;
}
+/*
+ * Set the response handler for the exchange associated with a sequence.
+ */
+static void fc_seq_set_resp(struct fc_seq *sp,
+ void (*resp)(struct fc_seq *, struct fc_frame *,
+ void *),
+ void *arg)
+{
+ struct fc_exch *ep = fc_seq_exch(sp);
+
+ spin_lock_bh(&ep->ex_lock);
+ ep->resp = resp;
+ ep->arg = arg;
+ spin_unlock_bh(&ep->ex_lock);
+}
+
/**
* fc_seq_exch_abort() - Abort an exchange and sequence
* @req_sp: The sequence to be aborted
if (e_stat & ESB_ST_ABNORMAL)
rc = fc_exch_done_locked(ep);
spin_unlock_bh(&ep->ex_lock);
+ if (!rc)
+ fc_exch_delete(ep);
if (resp)
resp(sp, ERR_PTR(-FC_EX_TIMEOUT), arg);
- if (!rc) {
- /* delete the exchange if it's already being aborted */
- fc_exch_delete(ep);
- return;
- }
fc_seq_exch_abort(sp, 2 * ep->r_a_tov);
goto done;
}
* @fp: The request frame
*
* On success, the sequence pointer will be returned and also in fr_seq(@fp).
+ * A reference will be held on the exchange/sequence for the caller, which
+ * must call fc_seq_release().
*/
static struct fc_seq *fc_seq_assign(struct fc_lport *lport, struct fc_frame *fp)
{
return fr_seq(fp);
}
+/**
+ * fc_seq_release() - Release the hold
+ * @sp: The sequence.
+ */
+static void fc_seq_release(struct fc_seq *sp)
+{
+ fc_exch_release(fc_seq_exch(sp));
+}
+
/**
* fc_exch_recv_req() - Handler for an incoming request
* @lport: The local port that received the request
fc_exch_mgr_del(ema);
return -ENOMEM;
}
+EXPORT_SYMBOL(fc_exch_mgr_list_clone);
/**
* fc_exch_mgr_alloc() - Allocate an exchange manager
}
EXPORT_SYMBOL(fc_exch_mgr_free);
+/**
+ * fc_find_ema() - Lookup and return appropriate Exchange Manager Anchor depending
+ * upon 'xid'.
+ * @f_ctl: f_ctl
+ * @lport: The local port the frame was received on
+ * @fh: The received frame header
+ */
+static struct fc_exch_mgr_anchor *fc_find_ema(u32 f_ctl,
+ struct fc_lport *lport,
+ struct fc_frame_header *fh)
+{
+ struct fc_exch_mgr_anchor *ema;
+ u16 xid;
+
+ if (f_ctl & FC_FC_EX_CTX)
+ xid = ntohs(fh->fh_ox_id);
+ else {
+ xid = ntohs(fh->fh_rx_id);
+ if (xid == FC_XID_UNKNOWN)
+ return list_entry(lport->ema_list.prev,
+ typeof(*ema), ema_list);
+ }
+
+ list_for_each_entry(ema, &lport->ema_list, ema_list) {
+ if ((xid >= ema->mp->min_xid) &&
+ (xid <= ema->mp->max_xid))
+ return ema;
+ }
+ return NULL;
+}
/**
* fc_exch_recv() - Handler for received frames
* @lport: The local port the frame was received on
- * @fp: The received frame
+ * @fp: The received frame
*/
void fc_exch_recv(struct fc_lport *lport, struct fc_frame *fp)
{
struct fc_frame_header *fh = fc_frame_header_get(fp);
struct fc_exch_mgr_anchor *ema;
- u32 f_ctl, found = 0;
- u16 oxid;
+ u32 f_ctl;
/* lport lock ? */
if (!lport || lport->state == LPORT_ST_DISABLED) {
}
f_ctl = ntoh24(fh->fh_f_ctl);
- oxid = ntohs(fh->fh_ox_id);
- if (f_ctl & FC_FC_EX_CTX) {
- list_for_each_entry(ema, &lport->ema_list, ema_list) {
- if ((oxid >= ema->mp->min_xid) &&
- (oxid <= ema->mp->max_xid)) {
- found = 1;
- break;
- }
- }
-
- if (!found) {
- FC_LPORT_DBG(lport, "Received response for out "
- "of range oxid:%hx\n", oxid);
- fc_frame_free(fp);
- return;
- }
- } else
- ema = list_entry(lport->ema_list.prev, typeof(*ema), ema_list);
+ ema = fc_find_ema(f_ctl, lport, fh);
+ if (!ema) {
+ FC_LPORT_DBG(lport, "Unable to find Exchange Manager Anchor,"
+ "fc_ctl <0x%x>, xid <0x%x>\n",
+ f_ctl,
+ (f_ctl & FC_FC_EX_CTX) ?
+ ntohs(fh->fh_ox_id) :
+ ntohs(fh->fh_rx_id));
+ fc_frame_free(fp);
+ return;
+ }
/*
* If frame is marked invalid, just drop it.
if (!lport->tt.seq_start_next)
lport->tt.seq_start_next = fc_seq_start_next;
+ if (!lport->tt.seq_set_resp)
+ lport->tt.seq_set_resp = fc_seq_set_resp;
+
if (!lport->tt.exch_seq_send)
lport->tt.exch_seq_send = fc_exch_seq_send;
if (!lport->tt.seq_assign)
lport->tt.seq_assign = fc_seq_assign;
+ if (!lport->tt.seq_release)
+ lport->tt.seq_release = fc_seq_release;
+
return 0;
}
EXPORT_SYMBOL(fc_exch_init);
/**
* fc_setup_exch_mgr() - Setup an exchange manager
*/
-int fc_setup_exch_mgr()
+int fc_setup_exch_mgr(void)
{
fc_em_cachep = kmem_cache_create("libfc_em", sizeof(struct fc_exch),
0, SLAB_HWCACHE_ALIGN, NULL);
/**
* fc_destroy_exch_mgr() - Destroy an exchange manager
*/
-void fc_destroy_exch_mgr()
+void fc_destroy_exch_mgr(void)
{
destroy_workqueue(fc_exch_workqueue);
kmem_cache_destroy(fc_em_cachep);
#include "fc_libfc.h"
-struct kmem_cache *scsi_pkt_cachep;
+static struct kmem_cache *scsi_pkt_cachep;
/* SRB state definitions */
#define FC_SRB_FREE 0 /* cmd is free */
if (fsp) {
memset(fsp, 0, sizeof(*fsp));
fsp->lp = lport;
+ fsp->xfer_ddp = FC_XID_UNKNOWN;
atomic_set(&fsp->ref_cnt, 1);
init_timer(&fsp->timer);
INIT_LIST_HEAD(&fsp->list);
static int fc_fcp_pkt_abort(struct fc_fcp_pkt *fsp)
{
int rc = FAILED;
+ unsigned long ticks_left;
if (fc_fcp_send_abort(fsp))
return FAILED;
fsp->wait_for_comp = 1;
spin_unlock_bh(&fsp->scsi_pkt_lock);
- rc = wait_for_completion_timeout(&fsp->tm_done, FC_SCSI_TM_TOV);
+ ticks_left = wait_for_completion_timeout(&fsp->tm_done,
+ FC_SCSI_TM_TOV);
spin_lock_bh(&fsp->scsi_pkt_lock);
fsp->wait_for_comp = 0;
- if (!rc) {
+ if (!ticks_left) {
FC_FCP_DBG(fsp, "target abort cmd failed\n");
- rc = FAILED;
} else if (fsp->state & FC_SRB_ABORTED) {
FC_FCP_DBG(fsp, "target abort cmd passed\n");
rc = SUCCESS;
*
* scsi-eh will escalate for when either happens.
*/
- goto out;
+ return;
}
if (fc_fcp_lock_pkt(fsp))
/**
* fc_queuecommand() - The queuecommand function of the SCSI template
+ * @shost: The Scsi_Host that the command was issued to
* @cmd: The scsi_cmnd to be executed
- * @done: The callback function to be called when the scsi_cmnd is complete
*
- * This is the i/o strategy routine, called by the SCSI layer. This routine
- * is called with the host_lock held.
+ * This is the i/o strategy routine, called by the SCSI layer.
*/
-static int fc_queuecommand_lck(struct scsi_cmnd *sc_cmd, void (*done)(struct scsi_cmnd *))
+int fc_queuecommand(struct Scsi_Host *shost, struct scsi_cmnd *sc_cmd)
{
- struct fc_lport *lport;
+ struct fc_lport *lport = shost_priv(shost);
struct fc_rport *rport = starget_to_rport(scsi_target(sc_cmd->device));
struct fc_fcp_pkt *fsp;
struct fc_rport_libfc_priv *rpriv;
int rc = 0;
struct fcoe_dev_stats *stats;
- lport = shost_priv(sc_cmd->device->host);
-
rval = fc_remote_port_chkready(rport);
if (rval) {
sc_cmd->result = rval;
- done(sc_cmd);
+ sc_cmd->scsi_done(sc_cmd);
return 0;
}
- spin_unlock_irq(lport->host->host_lock);
if (!*(struct fc_remote_port **)rport->dd_data) {
/*
* online
*/
sc_cmd->result = DID_IMM_RETRY << 16;
- done(sc_cmd);
+ sc_cmd->scsi_done(sc_cmd);
goto out;
}
* build the libfc request pkt
*/
fsp->cmd = sc_cmd; /* save the cmd */
- fsp->lp = lport; /* save the softc ptr */
fsp->rport = rport; /* set the remote port ptr */
- fsp->xfer_ddp = FC_XID_UNKNOWN;
- sc_cmd->scsi_done = done;
/*
* set up the transfer length
rc = SCSI_MLQUEUE_HOST_BUSY;
}
out:
- spin_lock_irq(lport->host->host_lock);
return rc;
}
-
-DEF_SCSI_QCMD(fc_queuecommand)
EXPORT_SYMBOL(fc_queuecommand);
/**
* the sc passed in is not setup for execution like when sent
* through the queuecommand callout.
*/
- fsp->lp = lport; /* save the softc ptr */
fsp->rport = rport; /* set the remote port ptr */
/*
}
EXPORT_SYMBOL(fc_fcp_destroy);
-int fc_setup_fcp()
+int fc_setup_fcp(void)
{
int rc = 0;
return rc;
}
-void fc_destroy_fcp()
+void fc_destroy_fcp(void)
{
if (scsi_pkt_cachep)
kmem_cache_destroy(scsi_pkt_cachep);
module_param_named(debug_logging, fc_debug_logging, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(debug_logging, "a bit mask of logging levels");
+DEFINE_MUTEX(fc_prov_mutex);
+static LIST_HEAD(fc_local_ports);
+struct blocking_notifier_head fc_lport_notifier_head =
+ BLOCKING_NOTIFIER_INIT(fc_lport_notifier_head);
+EXPORT_SYMBOL(fc_lport_notifier_head);
+
+/*
+ * Providers which primarily send requests and PRLIs.
+ */
+struct fc4_prov *fc_active_prov[FC_FC4_PROV_SIZE] = {
+ [0] = &fc_rport_t0_prov,
+ [FC_TYPE_FCP] = &fc_rport_fcp_init,
+};
+
+/*
+ * Providers which receive requests.
+ */
+struct fc4_prov *fc_passive_prov[FC_FC4_PROV_SIZE] = {
+ [FC_TYPE_ELS] = &fc_lport_els_prov,
+};
+
/**
* libfc_init() - Initialize libfc.ko
*/
fc_fill_hdr(fp, in_fp, r_ctl, FC_FCTL_RESP, 0, parm_offset);
}
EXPORT_SYMBOL(fc_fill_reply_hdr);
+
+/**
+ * fc_fc4_conf_lport_params() - Modify "service_params" of specified lport
+ * if there is service provider (target provider) registered with libfc
+ * for specified "fc_ft_type"
+ * @lport: Local port which service_params needs to be modified
+ * @type: FC-4 type, such as FC_TYPE_FCP
+ */
+void fc_fc4_conf_lport_params(struct fc_lport *lport, enum fc_fh_type type)
+{
+ struct fc4_prov *prov_entry;
+ BUG_ON(type >= FC_FC4_PROV_SIZE);
+ BUG_ON(!lport);
+ prov_entry = fc_passive_prov[type];
+ if (type == FC_TYPE_FCP) {
+ if (prov_entry && prov_entry->recv)
+ lport->service_params |= FCP_SPPF_TARG_FCN;
+ }
+}
+
+void fc_lport_iterate(void (*notify)(struct fc_lport *, void *), void *arg)
+{
+ struct fc_lport *lport;
+
+ mutex_lock(&fc_prov_mutex);
+ list_for_each_entry(lport, &fc_local_ports, lport_list)
+ notify(lport, arg);
+ mutex_unlock(&fc_prov_mutex);
+}
+EXPORT_SYMBOL(fc_lport_iterate);
+
+/**
+ * fc_fc4_register_provider() - register FC-4 upper-level provider.
+ * @type: FC-4 type, such as FC_TYPE_FCP
+ * @prov: structure describing provider including ops vector.
+ *
+ * Returns 0 on success, negative error otherwise.
+ */
+int fc_fc4_register_provider(enum fc_fh_type type, struct fc4_prov *prov)
+{
+ struct fc4_prov **prov_entry;
+ int ret = 0;
+
+ if (type >= FC_FC4_PROV_SIZE)
+ return -EINVAL;
+ mutex_lock(&fc_prov_mutex);
+ prov_entry = (prov->recv ? fc_passive_prov : fc_active_prov) + type;
+ if (*prov_entry)
+ ret = -EBUSY;
+ else
+ *prov_entry = prov;
+ mutex_unlock(&fc_prov_mutex);
+ return ret;
+}
+EXPORT_SYMBOL(fc_fc4_register_provider);
+
+/**
+ * fc_fc4_deregister_provider() - deregister FC-4 upper-level provider.
+ * @type: FC-4 type, such as FC_TYPE_FCP
+ * @prov: structure describing provider including ops vector.
+ */
+void fc_fc4_deregister_provider(enum fc_fh_type type, struct fc4_prov *prov)
+{
+ BUG_ON(type >= FC_FC4_PROV_SIZE);
+ mutex_lock(&fc_prov_mutex);
+ if (prov->recv)
+ rcu_assign_pointer(fc_passive_prov[type], NULL);
+ else
+ rcu_assign_pointer(fc_active_prov[type], NULL);
+ mutex_unlock(&fc_prov_mutex);
+ synchronize_rcu();
+}
+EXPORT_SYMBOL(fc_fc4_deregister_provider);
+
+/**
+ * fc_fc4_add_lport() - add new local port to list and run notifiers.
+ * @lport: The new local port.
+ */
+void fc_fc4_add_lport(struct fc_lport *lport)
+{
+ mutex_lock(&fc_prov_mutex);
+ list_add_tail(&lport->lport_list, &fc_local_ports);
+ blocking_notifier_call_chain(&fc_lport_notifier_head,
+ FC_LPORT_EV_ADD, lport);
+ mutex_unlock(&fc_prov_mutex);
+}
+
+/**
+ * fc_fc4_del_lport() - remove local port from list and run notifiers.
+ * @lport: The new local port.
+ */
+void fc_fc4_del_lport(struct fc_lport *lport)
+{
+ mutex_lock(&fc_prov_mutex);
+ list_del(&lport->lport_list);
+ blocking_notifier_call_chain(&fc_lport_notifier_head,
+ FC_LPORT_EV_DEL, lport);
+ mutex_unlock(&fc_prov_mutex);
+}
printk(KERN_INFO "host%u: scsi: " fmt, \
(lport)->host->host_no, ##args))
+/*
+ * FC-4 Providers.
+ */
+extern struct fc4_prov *fc_active_prov[]; /* providers without recv */
+extern struct fc4_prov *fc_passive_prov[]; /* providers with recv */
+extern struct mutex fc_prov_mutex; /* lock over table changes */
+
+extern struct fc4_prov fc_rport_t0_prov; /* type 0 provider */
+extern struct fc4_prov fc_lport_els_prov; /* ELS provider */
+extern struct fc4_prov fc_rport_fcp_init; /* FCP initiator provider */
+
/*
* Set up direct-data placement for this I/O request
*/
* Internal libfc functions
*/
const char *fc_els_resp_type(struct fc_frame *);
+extern void fc_fc4_add_lport(struct fc_lport *);
+extern void fc_fc4_del_lport(struct fc_lport *);
+extern void fc_fc4_conf_lport_params(struct fc_lport *, enum fc_fh_type);
/*
* Copies a buffer into an sg list
lport->tt.fcp_abort_io(lport);
lport->tt.disc_stop_final(lport);
lport->tt.exch_mgr_reset(lport, 0, 0);
+ fc_fc4_del_lport(lport);
return 0;
}
EXPORT_SYMBOL(fc_lport_destroy);
}
/**
- * fc_lport_recv_req() - The generic lport request handler
+ * fc_lport_recv_els_req() - The generic lport ELS request handler
* @lport: The local port that received the request
* @fp: The request frame
*
* Locking Note: This function should not be called with the lport
* lock held becuase it will grab the lock.
*/
-static void fc_lport_recv_req(struct fc_lport *lport, struct fc_frame *fp)
+static void fc_lport_recv_els_req(struct fc_lport *lport,
+ struct fc_frame *fp)
{
- struct fc_frame_header *fh = fc_frame_header_get(fp);
void (*recv)(struct fc_lport *, struct fc_frame *);
mutex_lock(&lport->lp_mutex);
*/
if (!lport->link_up)
fc_frame_free(fp);
- else if (fh->fh_type == FC_TYPE_ELS &&
- fh->fh_r_ctl == FC_RCTL_ELS_REQ) {
+ else {
/*
* Check opcode.
*/
}
recv(lport, fp);
- } else {
- FC_LPORT_DBG(lport, "dropping invalid frame (eof %x)\n",
- fr_eof(fp));
- fc_frame_free(fp);
}
mutex_unlock(&lport->lp_mutex);
}
+static int fc_lport_els_prli(struct fc_rport_priv *rdata, u32 spp_len,
+ const struct fc_els_spp *spp_in,
+ struct fc_els_spp *spp_out)
+{
+ return FC_SPP_RESP_INVL;
+}
+
+struct fc4_prov fc_lport_els_prov = {
+ .prli = fc_lport_els_prli,
+ .recv = fc_lport_recv_els_req,
+};
+
+/**
+ * fc_lport_recv_req() - The generic lport request handler
+ * @lport: The lport that received the request
+ * @fp: The frame the request is in
+ *
+ * Locking Note: This function should not be called with the lport
+ * lock held becuase it may grab the lock.
+ */
+static void fc_lport_recv_req(struct fc_lport *lport,
+ struct fc_frame *fp)
+{
+ struct fc_frame_header *fh = fc_frame_header_get(fp);
+ struct fc_seq *sp = fr_seq(fp);
+ struct fc4_prov *prov;
+
+ /*
+ * Use RCU read lock and module_lock to be sure module doesn't
+ * deregister and get unloaded while we're calling it.
+ * try_module_get() is inlined and accepts a NULL parameter.
+ * Only ELSes and FCP target ops should come through here.
+ * The locking is unfortunate, and a better scheme is being sought.
+ */
+
+ rcu_read_lock();
+ if (fh->fh_type >= FC_FC4_PROV_SIZE)
+ goto drop;
+ prov = rcu_dereference(fc_passive_prov[fh->fh_type]);
+ if (!prov || !try_module_get(prov->module))
+ goto drop;
+ rcu_read_unlock();
+ prov->recv(lport, fp);
+ module_put(prov->module);
+ return;
+drop:
+ rcu_read_unlock();
+ FC_LPORT_DBG(lport, "dropping unexpected frame type %x\n", fh->fh_type);
+ fc_frame_free(fp);
+ lport->tt.exch_done(sp);
+}
+
/**
* fc_lport_reset() - Reset a local port
* @lport: The local port which should be reset
*/
int fc_lport_config(struct fc_lport *lport)
{
+ INIT_LIST_HEAD(&lport->ema_list);
INIT_DELAYED_WORK(&lport->retry_work, fc_lport_timeout);
mutex_init(&lport->lp_mutex);
fc_lport_add_fc4_type(lport, FC_TYPE_FCP);
fc_lport_add_fc4_type(lport, FC_TYPE_CT);
+ fc_fc4_conf_lport_params(lport, FC_TYPE_FCP);
return 0;
}
fc_host_supported_speeds(lport->host) |= FC_PORTSPEED_1GBIT;
if (lport->link_supported_speeds & FC_PORTSPEED_10GBIT)
fc_host_supported_speeds(lport->host) |= FC_PORTSPEED_10GBIT;
+ fc_fc4_add_lport(lport);
return 0;
}
vn_port = libfc_host_alloc(shost->hostt, privsize);
if (!vn_port)
- goto err_out;
- if (fc_exch_mgr_list_clone(n_port, vn_port))
- goto err_put;
+ return vn_port;
vn_port->vport = vport;
vport->dd_data = vn_port;
mutex_unlock(&n_port->lp_mutex);
return vn_port;
-
-err_put:
- scsi_host_put(vn_port->host);
-err_out:
- return NULL;
}
EXPORT_SYMBOL(libfc_vport_create);
return lport;
}
+EXPORT_SYMBOL(fc_vport_id_lookup);
/*
* When setting the link state of vports during an lport state change, it's
#include "fc_libfc.h"
-struct workqueue_struct *rport_event_queue;
+static struct workqueue_struct *rport_event_queue;
static void fc_rport_enter_flogi(struct fc_rport_priv *);
static void fc_rport_enter_plogi(struct fc_rport_priv *);
rdata->maxframe_size = FC_MIN_MAX_PAYLOAD;
INIT_DELAYED_WORK(&rdata->retry_work, fc_rport_timeout);
INIT_WORK(&rdata->event_work, fc_rport_work);
- if (port_id != FC_FID_DIR_SERV)
+ if (port_id != FC_FID_DIR_SERV) {
+ rdata->lld_event_callback = lport->tt.rport_event_callback;
list_add_rcu(&rdata->peers, &lport->disc.rports);
+ }
return rdata;
}
struct fc_rport_operations *rport_ops;
struct fc_rport_identifiers ids;
struct fc_rport *rport;
+ struct fc4_prov *prov;
+ u8 type;
mutex_lock(&rdata->rp_mutex);
event = rdata->event;
FC_RPORT_DBG(rdata, "callback ev %d\n", event);
rport_ops->event_callback(lport, rdata, event);
}
+ if (rdata->lld_event_callback) {
+ FC_RPORT_DBG(rdata, "lld callback ev %d\n", event);
+ rdata->lld_event_callback(lport, rdata, event);
+ }
kref_put(&rdata->kref, lport->tt.rport_destroy);
break;
case RPORT_EV_FAILED:
case RPORT_EV_LOGO:
case RPORT_EV_STOP:
+ if (rdata->prli_count) {
+ mutex_lock(&fc_prov_mutex);
+ for (type = 1; type < FC_FC4_PROV_SIZE; type++) {
+ prov = fc_passive_prov[type];
+ if (prov && prov->prlo)
+ prov->prlo(rdata);
+ }
+ mutex_unlock(&fc_prov_mutex);
+ }
port_id = rdata->ids.port_id;
mutex_unlock(&rdata->rp_mutex);
FC_RPORT_DBG(rdata, "callback ev %d\n", event);
rport_ops->event_callback(lport, rdata, event);
}
+ if (rdata->lld_event_callback) {
+ FC_RPORT_DBG(rdata, "lld callback ev %d\n", event);
+ rdata->lld_event_callback(lport, rdata, event);
+ }
cancel_delayed_work_sync(&rdata->retry_work);
/*
if (port_id == FC_FID_DIR_SERV) {
rdata->event = RPORT_EV_NONE;
mutex_unlock(&rdata->rp_mutex);
+ kref_put(&rdata->kref, lport->tt.rport_destroy);
} else if ((rdata->flags & FC_RP_STARTED) &&
rdata->major_retries <
lport->max_rport_retry_count) {
/* make sure this isn't an FC_EX_CLOSED error, never retry those */
if (PTR_ERR(fp) == -FC_EX_CLOSED)
- return fc_rport_error(rdata, fp);
+ goto out;
if (rdata->retries < rdata->local_port->max_rport_retry_count) {
FC_RPORT_DBG(rdata, "Error %ld in state %s, retrying\n",
return;
}
- return fc_rport_error(rdata, fp);
+out:
+ fc_rport_error(rdata, fp);
}
/**
rdata->ids.port_name = get_unaligned_be64(&plp->fl_wwpn);
rdata->ids.node_name = get_unaligned_be64(&plp->fl_wwnn);
+ /* save plogi response sp_features for further reference */
+ rdata->sp_features = ntohs(plp->fl_csp.sp_features);
+
if (lport->point_to_multipoint)
fc_rport_login_complete(rdata, fp);
csp_seq = ntohs(plp->fl_csp.sp_tot_seq);
struct fc_els_prli prli;
struct fc_els_spp spp;
} *pp;
+ struct fc_els_spp temp_spp;
+ struct fc4_prov *prov;
u32 roles = FC_RPORT_ROLE_UNKNOWN;
u32 fcp_parm = 0;
u8 op;
resp_code = (pp->spp.spp_flags & FC_SPP_RESP_MASK);
FC_RPORT_DBG(rdata, "PRLI spp_flags = 0x%x\n",
pp->spp.spp_flags);
+ rdata->spp_type = pp->spp.spp_type;
if (resp_code != FC_SPP_RESP_ACK) {
if (resp_code == FC_SPP_RESP_CONF)
fc_rport_error(rdata, fp);
fcp_parm = ntohl(pp->spp.spp_params);
if (fcp_parm & FCP_SPPF_RETRY)
rdata->flags |= FC_RP_FLAGS_RETRY;
+ if (fcp_parm & FCP_SPPF_CONF_COMPL)
+ rdata->flags |= FC_RP_FLAGS_CONF_REQ;
+
+ prov = fc_passive_prov[FC_TYPE_FCP];
+ if (prov) {
+ memset(&temp_spp, 0, sizeof(temp_spp));
+ prov->prli(rdata, pp->prli.prli_spp_len,
+ &pp->spp, &temp_spp);
+ }
rdata->supported_classes = FC_COS_CLASS3;
if (fcp_parm & FCP_SPPF_INIT_FCN)
struct fc_els_spp spp;
} *pp;
struct fc_frame *fp;
+ struct fc4_prov *prov;
/*
* If the rport is one of the well known addresses
return;
}
- if (!lport->tt.elsct_send(lport, rdata->ids.port_id, fp, ELS_PRLI,
- fc_rport_prli_resp, rdata,
- 2 * lport->r_a_tov))
+ fc_prli_fill(lport, fp);
+
+ prov = fc_passive_prov[FC_TYPE_FCP];
+ if (prov) {
+ pp = fc_frame_payload_get(fp, sizeof(*pp));
+ prov->prli(rdata, sizeof(pp->spp), NULL, &pp->spp);
+ }
+
+ fc_fill_fc_hdr(fp, FC_RCTL_ELS_REQ, rdata->ids.port_id,
+ fc_host_port_id(lport->host), FC_TYPE_ELS,
+ FC_FC_FIRST_SEQ | FC_FC_END_SEQ | FC_FC_SEQ_INIT, 0);
+
+ if (!lport->tt.exch_seq_send(lport, fp, fc_rport_prli_resp,
+ NULL, rdata, 2 * lport->r_a_tov))
fc_rport_error_retry(rdata, NULL);
else
kref_get(&rdata->kref);
unsigned int len;
unsigned int plen;
enum fc_els_spp_resp resp;
+ enum fc_els_spp_resp passive;
struct fc_seq_els_data rjt_data;
- u32 fcp_parm;
- u32 roles = FC_RPORT_ROLE_UNKNOWN;
+ struct fc4_prov *prov;
FC_RPORT_DBG(rdata, "Received PRLI request while in state %s\n",
fc_rport_state(rdata));
pp->prli.prli_len = htons(len);
len -= sizeof(struct fc_els_prli);
- /* reinitialize remote port roles */
- rdata->ids.roles = FC_RPORT_ROLE_UNKNOWN;
-
/*
* Go through all the service parameter pages and build
* response. If plen indicates longer SPP than standard,
* use that. The entire response has been pre-cleared above.
*/
spp = &pp->spp;
+ mutex_lock(&fc_prov_mutex);
while (len >= plen) {
+ rdata->spp_type = rspp->spp_type;
spp->spp_type = rspp->spp_type;
spp->spp_type_ext = rspp->spp_type_ext;
- spp->spp_flags = rspp->spp_flags & FC_SPP_EST_IMG_PAIR;
- resp = FC_SPP_RESP_ACK;
-
- switch (rspp->spp_type) {
- case 0: /* common to all FC-4 types */
- break;
- case FC_TYPE_FCP:
- fcp_parm = ntohl(rspp->spp_params);
- if (fcp_parm & FCP_SPPF_RETRY)
- rdata->flags |= FC_RP_FLAGS_RETRY;
- rdata->supported_classes = FC_COS_CLASS3;
- if (fcp_parm & FCP_SPPF_INIT_FCN)
- roles |= FC_RPORT_ROLE_FCP_INITIATOR;
- if (fcp_parm & FCP_SPPF_TARG_FCN)
- roles |= FC_RPORT_ROLE_FCP_TARGET;
- rdata->ids.roles = roles;
-
- spp->spp_params = htonl(lport->service_params);
- break;
- default:
- resp = FC_SPP_RESP_INVL;
- break;
+ resp = 0;
+
+ if (rspp->spp_type < FC_FC4_PROV_SIZE) {
+ prov = fc_active_prov[rspp->spp_type];
+ if (prov)
+ resp = prov->prli(rdata, plen, rspp, spp);
+ prov = fc_passive_prov[rspp->spp_type];
+ if (prov) {
+ passive = prov->prli(rdata, plen, rspp, spp);
+ if (!resp || passive == FC_SPP_RESP_ACK)
+ resp = passive;
+ }
+ }
+ if (!resp) {
+ if (spp->spp_flags & FC_SPP_EST_IMG_PAIR)
+ resp |= FC_SPP_RESP_CONF;
+ else
+ resp |= FC_SPP_RESP_INVL;
}
spp->spp_flags |= resp;
len -= plen;
rspp = (struct fc_els_spp *)((char *)rspp + plen);
spp = (struct fc_els_spp *)((char *)spp + plen);
}
+ mutex_unlock(&fc_prov_mutex);
/*
* Send LS_ACC. If this fails, the originator should retry.
}
EXPORT_SYMBOL(fc_rport_init);
+/**
+ * fc_rport_fcp_prli() - Handle incoming PRLI for the FCP initiator.
+ * @rdata: remote port private
+ * @spp_len: service parameter page length
+ * @rspp: received service parameter page
+ * @spp: response service parameter page
+ *
+ * Returns the value for the response code to be placed in spp_flags;
+ * Returns 0 if not an initiator.
+ */
+static int fc_rport_fcp_prli(struct fc_rport_priv *rdata, u32 spp_len,
+ const struct fc_els_spp *rspp,
+ struct fc_els_spp *spp)
+{
+ struct fc_lport *lport = rdata->local_port;
+ u32 fcp_parm;
+
+ fcp_parm = ntohl(rspp->spp_params);
+ rdata->ids.roles = FC_RPORT_ROLE_UNKNOWN;
+ if (fcp_parm & FCP_SPPF_INIT_FCN)
+ rdata->ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR;
+ if (fcp_parm & FCP_SPPF_TARG_FCN)
+ rdata->ids.roles |= FC_RPORT_ROLE_FCP_TARGET;
+ if (fcp_parm & FCP_SPPF_RETRY)
+ rdata->flags |= FC_RP_FLAGS_RETRY;
+ rdata->supported_classes = FC_COS_CLASS3;
+
+ if (!(lport->service_params & FC_RPORT_ROLE_FCP_INITIATOR))
+ return 0;
+
+ spp->spp_flags |= rspp->spp_flags & FC_SPP_EST_IMG_PAIR;
+
+ /*
+ * OR in our service parameters with other providers (target), if any.
+ */
+ fcp_parm = ntohl(spp->spp_params);
+ spp->spp_params = htonl(fcp_parm | lport->service_params);
+ return FC_SPP_RESP_ACK;
+}
+
+/*
+ * FC-4 provider ops for FCP initiator.
+ */
+struct fc4_prov fc_rport_fcp_init = {
+ .prli = fc_rport_fcp_prli,
+};
+
+/**
+ * fc_rport_t0_prli() - Handle incoming PRLI parameters for type 0
+ * @rdata: remote port private
+ * @spp_len: service parameter page length
+ * @rspp: received service parameter page
+ * @spp: response service parameter page
+ */
+static int fc_rport_t0_prli(struct fc_rport_priv *rdata, u32 spp_len,
+ const struct fc_els_spp *rspp,
+ struct fc_els_spp *spp)
+{
+ if (rspp->spp_flags & FC_SPP_EST_IMG_PAIR)
+ return FC_SPP_RESP_INVL;
+ return FC_SPP_RESP_ACK;
+}
+
+/*
+ * FC-4 provider ops for type 0 service parameters.
+ *
+ * This handles the special case of type 0 which is always successful
+ * but doesn't do anything otherwise.
+ */
+struct fc4_prov fc_rport_t0_prov = {
+ .prli = fc_rport_t0_prli,
+};
+
/**
* fc_setup_rport() - Initialize the rport_event_queue
*/
-int fc_setup_rport()
+int fc_setup_rport(void)
{
rport_event_queue = create_singlethread_workqueue("fc_rport_eq");
if (!rport_event_queue)
/**
* fc_destroy_rport() - Destroy the rport_event_queue
*/
-void fc_destroy_rport()
+void fc_destroy_rport(void)
{
destroy_workqueue(rport_event_queue);
}
}
EXPORT_SYMBOL_GPL(iscsi_session_get_param);
+int iscsi_conn_get_addr_param(struct sockaddr_storage *addr,
+ enum iscsi_param param, char *buf)
+{
+ struct sockaddr_in6 *sin6 = NULL;
+ struct sockaddr_in *sin = NULL;
+ int len;
+
+ switch (addr->ss_family) {
+ case AF_INET:
+ sin = (struct sockaddr_in *)addr;
+ break;
+ case AF_INET6:
+ sin6 = (struct sockaddr_in6 *)addr;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ switch (param) {
+ case ISCSI_PARAM_CONN_ADDRESS:
+ case ISCSI_HOST_PARAM_IPADDRESS:
+ if (sin)
+ len = sprintf(buf, "%pI4\n", &sin->sin_addr.s_addr);
+ else
+ len = sprintf(buf, "%pI6\n", &sin6->sin6_addr);
+ break;
+ case ISCSI_PARAM_CONN_PORT:
+ if (sin)
+ len = sprintf(buf, "%hu\n", be16_to_cpu(sin->sin_port));
+ else
+ len = sprintf(buf, "%hu\n",
+ be16_to_cpu(sin6->sin6_port));
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return len;
+}
+EXPORT_SYMBOL_GPL(iscsi_conn_get_addr_param);
+
int iscsi_conn_get_param(struct iscsi_cls_conn *cls_conn,
enum iscsi_param param, char *buf)
{
case ISCSI_HOST_PARAM_INITIATOR_NAME:
len = sprintf(buf, "%s\n", ihost->initiatorname);
break;
- case ISCSI_HOST_PARAM_IPADDRESS:
- len = sprintf(buf, "%s\n", ihost->local_address);
- break;
default:
return -ENOSYS;
}
Allows sas hosts to receive SMP frames. Selecting this
option builds an SMP interpreter into libsas. Say
N here if you want to save the few kb this consumes.
-
-config SCSI_SAS_LIBSAS_DEBUG
- bool "Compile the SAS Domain Transport Attributes in debug mode"
- default y
- depends on SCSI_SAS_LIBSAS
- help
- Compiles the SAS Layer in debug mode. In debug mode, the
- SAS Layer prints diagnostic and debug messages.
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
# USA
-ifeq ($(CONFIG_SCSI_SAS_LIBSAS_DEBUG),y)
- EXTRA_CFLAGS += -DSAS_DEBUG
-endif
-
obj-$(CONFIG_SCSI_SAS_LIBSAS) += libsas.o
libsas-y += sas_init.o \
sas_phy.o \
case SAS_SG_ERR:
return AC_ERR_INVALID;
- case SAM_STAT_CHECK_CONDITION:
case SAS_OPEN_TO:
case SAS_OPEN_REJECT:
SAS_DPRINTK("%s: Saw error %d. What to do?\n",
__func__, ts->stat);
return AC_ERR_OTHER;
+ case SAM_STAT_CHECK_CONDITION:
case SAS_ABORTED_TASK:
return AC_ERR_DEV;
sas_ha = dev->port->ha;
spin_lock_irqsave(dev->sata_dev.ap->lock, flags);
- if (stat->stat == SAS_PROTO_RESPONSE || stat->stat == SAM_STAT_GOOD) {
+ if (stat->stat == SAS_PROTO_RESPONSE || stat->stat == SAM_STAT_GOOD ||
+ ((stat->stat == SAM_STAT_CHECK_CONDITION &&
+ dev->sata_dev.command_set == ATAPI_COMMAND_SET))) {
ata_tf_from_fis(resp->ending_fis, &dev->sata_dev.tf);
qc->err_mask |= ac_err_mask(dev->sata_dev.tf.command);
dev->sata_dev.sstatus = resp->sstatus;
dev->sata_dev.serror = resp->serror;
dev->sata_dev.scontrol = resp->scontrol;
- } else if (stat->stat != SAM_STAT_GOOD) {
+ } else {
ac = sas_to_ata_err(stat);
if (ac) {
SAS_DPRINTK("%s: SAS error %x\n", __func__,
}
}
-static int sas_ata_scr_write(struct ata_link *link, unsigned int sc_reg_in,
- u32 val)
-{
- struct domain_device *dev = link->ap->private_data;
-
- SAS_DPRINTK("STUB %s\n", __func__);
- switch (sc_reg_in) {
- case SCR_STATUS:
- dev->sata_dev.sstatus = val;
- break;
- case SCR_CONTROL:
- dev->sata_dev.scontrol = val;
- break;
- case SCR_ERROR:
- dev->sata_dev.serror = val;
- break;
- case SCR_ACTIVE:
- dev->sata_dev.ap->link.sactive = val;
- break;
- default:
- return -EINVAL;
- }
- return 0;
-}
-
-static int sas_ata_scr_read(struct ata_link *link, unsigned int sc_reg_in,
- u32 *val)
-{
- struct domain_device *dev = link->ap->private_data;
-
- SAS_DPRINTK("STUB %s\n", __func__);
- switch (sc_reg_in) {
- case SCR_STATUS:
- *val = dev->sata_dev.sstatus;
- return 0;
- case SCR_CONTROL:
- *val = dev->sata_dev.scontrol;
- return 0;
- case SCR_ERROR:
- *val = dev->sata_dev.serror;
- return 0;
- case SCR_ACTIVE:
- *val = dev->sata_dev.ap->link.sactive;
- return 0;
- default:
- return -EINVAL;
- }
-}
-
static struct ata_port_operations sas_sata_ops = {
.prereset = ata_std_prereset,
.softreset = NULL,
.qc_fill_rtf = sas_ata_qc_fill_rtf,
.port_start = ata_sas_port_start,
.port_stop = ata_sas_port_stop,
- .scr_read = sas_ata_scr_read,
- .scr_write = sas_ata_scr_write
};
static struct ata_port_info sata_port_info = {
if (!dev_is_sata(ddev))
continue;
-
+
ata_port_printk(ap, KERN_DEBUG, "sas eh calling libata port error handler");
ata_scsi_port_error_handler(shost, ap);
}
LIST_HEAD(sata_q);
ap = NULL;
-
+
list_for_each_entry_safe(cmd, n, work_q, eh_entry) {
struct domain_device *ddev = cmd_to_domain_dev(cmd);
if (!dev_is_sata(ddev) || TO_SAS_TASK(cmd))
continue;
- if(ap && ap != ddev->sata_dev.ap)
+ if (ap && ap != ddev->sata_dev.ap)
continue;
ap = ddev->sata_dev.ap;
rtn = 1;
}
if (!list_empty(&sata_q)) {
- ata_port_printk(ap, KERN_DEBUG,"sas eh calling libata cmd error handler\n");
+ ata_port_printk(ap, KERN_DEBUG, "sas eh calling libata cmd error handler\n");
ata_scsi_cmd_error_handler(shost, ap, &sata_q);
+ /*
+ * ata's error handler may leave the cmd on the list
+ * so make sure they don't remain on a stack list
+ * about to go out of scope.
+ *
+ * This looks strange, since the commands are
+ * now part of no list, but the next error
+ * action will be ata_port_error_handler()
+ * which takes no list and sweeps them up
+ * anyway from the ata tag array.
+ */
+ while (!list_empty(&sata_q))
+ list_del_init(sata_q.next);
}
} while (ap);
#include "sas_dump.h"
-#ifdef SAS_DEBUG
-
static const char *sas_hae_str[] = {
[0] = "HAE_RESET",
};
SAS_DPRINTK("port%d: oob_mode:0x%x\n", port->id, port->oob_mode);
SAS_DPRINTK("port%d: num_phys:%d\n", port->id, port->num_phys);
}
-
-#endif /* SAS_DEBUG */
#include "sas_internal.h"
-#ifdef SAS_DEBUG
-
void sas_dprint_porte(int phyid, enum port_event pe);
void sas_dprint_phye(int phyid, enum phy_event pe);
void sas_dprint_hae(struct sas_ha_struct *sas_ha, enum ha_event he);
void sas_dump_port(struct asd_sas_port *port);
-
-#else /* SAS_DEBUG */
-
-static inline void sas_dprint_porte(int phyid, enum port_event pe) { }
-static inline void sas_dprint_phye(int phyid, enum phy_event pe) { }
-static inline void sas_dprint_hae(struct sas_ha_struct *sas_ha,
- enum ha_event he) { }
-static inline void sas_dump_port(struct asd_sas_port *port) { }
-
-#endif /* SAS_DEBUG */
* dev to host FIS as described in section G.5 of
* sas-2 r 04b */
dr = &((struct smp_resp *)disc_resp)->disc;
+ if (memcmp(dev->sas_addr, dr->attached_sas_addr,
+ SAS_ADDR_SIZE) == 0) {
+ sas_printk("Found loopback topology, just ignore it!\n");
+ return 0;
+ }
if (!(dr->attached_dev_type == 0 &&
dr->attached_sata_dev))
break;
#define sas_printk(fmt, ...) printk(KERN_NOTICE "sas: " fmt, ## __VA_ARGS__)
-#ifdef SAS_DEBUG
-#define SAS_DPRINTK(fmt, ...) printk(KERN_NOTICE "sas: " fmt, ## __VA_ARGS__)
-#else
-#define SAS_DPRINTK(fmt, ...)
-#endif
+#define SAS_DPRINTK(fmt, ...) printk(KERN_DEBUG "sas: " fmt, ## __VA_ARGS__)
#define TO_SAS_TASK(_scsi_cmd) ((void *)(_scsi_cmd)->host_scribble)
#define ASSIGN_SAS_TASK(_sc, _t) do { (_sc)->host_scribble = (void *) _t; } while (0)
{
struct sas_task *task = TO_SAS_TASK(cmd);
unsigned long flags;
- enum blk_eh_timer_return rtn;
+ enum blk_eh_timer_return rtn;
if (sas_ata_timed_out(cmd, task, &rtn))
return rtn;
-
if (!task) {
cmd->request->timeout /= 2;
/*******************************************************************
* This file is part of the Emulex Linux Device Driver for *
* Fibre Channel Host Bus Adapters. *
- * Copyright (C) 2004-2010 Emulex. All rights reserved. *
+ * Copyright (C) 2004-2011 Emulex. All rights reserved. *
* EMULEX and SLI are trademarks of Emulex. *
* www.emulex.com *
* Portions Copyright (C) 2004-2005 Christoph Hellwig *
#define FC_VPORT_CVL_RCVD 0x400000 /* VLink failed due to CVL */
#define FC_VFI_REGISTERED 0x800000 /* VFI is registered */
#define FC_FDISC_COMPLETED 0x1000000/* FDISC completed */
+#define FC_DISC_DELAYED 0x2000000/* Delay NPort discovery */
uint32_t ct_flags;
#define FC_CT_RFF_ID 0x1 /* RFF_ID accepted by switch */
uint32_t fc_myDID; /* fibre channel S_ID */
uint32_t fc_prevDID; /* previous fibre channel S_ID */
+ struct lpfc_name fabric_portname;
+ struct lpfc_name fabric_nodename;
int32_t stopped; /* HBA has not been restarted since last ERATT */
uint8_t fc_linkspeed; /* Link speed after last READ_LA */
#define WORKER_DISC_TMO 0x1 /* vport: Discovery timeout */
#define WORKER_ELS_TMO 0x2 /* vport: ELS timeout */
#define WORKER_FDMI_TMO 0x4 /* vport: FDMI timeout */
+#define WORKER_DELAYED_DISC_TMO 0x8 /* vport: delayed discovery */
#define WORKER_MBOX_TMO 0x100 /* hba: MBOX timeout */
#define WORKER_HB_TMO 0x200 /* hba: Heart beat timeout */
struct timer_list fc_fdmitmo;
struct timer_list els_tmofunc;
+ struct timer_list delayed_disc_tmo;
int unreg_vpi_cmpl;
#define LPFC_SLI3_CRP_ENABLED 0x08
#define LPFC_SLI3_BG_ENABLED 0x20
#define LPFC_SLI3_DSS_ENABLED 0x40
+#define LPFC_SLI4_PERFH_ENABLED 0x80
+#define LPFC_SLI4_PHWQ_ENABLED 0x100
uint32_t iocb_cmd_size;
uint32_t iocb_rsp_size;
#define LPFC_INITIALIZE_LINK 0 /* do normal init_link mbox */
#define LPFC_DELAY_INIT_LINK 1 /* layered driver hold off */
#define LPFC_DELAY_INIT_LINK_INDEFINITELY 2 /* wait, manual intervention */
-
+ uint32_t cfg_enable_dss;
lpfc_vpd_t vpd; /* vital product data */
struct pci_dev *pcidev;
struct dentry *debug_slow_ring_trc;
struct lpfc_debugfs_trc *slow_ring_trc;
atomic_t slow_ring_trc_cnt;
+ /* iDiag debugfs sub-directory */
+ struct dentry *idiag_root;
+ struct dentry *idiag_pci_cfg;
+ struct dentry *idiag_que_info;
#endif
/* Used for deferred freeing of ELS data buffers */
/*******************************************************************
* This file is part of the Emulex Linux Device Driver for *
* Fibre Channel Host Bus Adapters. *
- * Copyright (C) 2004-2009 Emulex. All rights reserved. *
+ * Copyright (C) 2004-2011 Emulex. All rights reserved. *
* EMULEX and SLI are trademarks of Emulex. *
* www.emulex.com *
* Portions Copyright (C) 2004-2005 Christoph Hellwig *
int status = 0;
int cnt = 0;
int i;
+ int rc;
init_completion(&online_compl);
- lpfc_workq_post_event(phba, &status, &online_compl,
+ rc = lpfc_workq_post_event(phba, &status, &online_compl,
LPFC_EVT_OFFLINE_PREP);
+ if (rc == 0)
+ return -ENOMEM;
+
wait_for_completion(&online_compl);
if (status != 0)
}
init_completion(&online_compl);
- lpfc_workq_post_event(phba, &status, &online_compl, type);
+ rc = lpfc_workq_post_event(phba, &status, &online_compl, type);
+ if (rc == 0)
+ return -ENOMEM;
+
wait_for_completion(&online_compl);
if (status != 0)
*
* Notes:
* Assumes any error from lpfc_do_offline() will be negative.
+ * Do not make this function static.
*
* Returns:
* lpfc_do_offline() return code if not zero
{
struct completion online_compl;
int status = 0;
+ int rc;
if (!phba->cfg_enable_hba_reset)
return -EIO;
return status;
init_completion(&online_compl);
- lpfc_workq_post_event(phba, &status, &online_compl,
+ rc = lpfc_workq_post_event(phba, &status, &online_compl,
LPFC_EVT_ONLINE);
+ if (rc == 0)
+ return -ENOMEM;
+
wait_for_completion(&online_compl);
if (status != 0)
struct lpfc_hba *phba = vport->phba;
struct completion online_compl;
int status=0;
+ int rc;
if (!phba->cfg_enable_hba_reset)
return -EACCES;
init_completion(&online_compl);
if(strncmp(buf, "online", sizeof("online") - 1) == 0) {
- lpfc_workq_post_event(phba, &status, &online_compl,
+ rc = lpfc_workq_post_event(phba, &status, &online_compl,
LPFC_EVT_ONLINE);
+ if (rc == 0)
+ return -ENOMEM;
wait_for_completion(&online_compl);
} else if (strncmp(buf, "offline", sizeof("offline") - 1) == 0)
status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
return snprintf(buf, PAGE_SIZE, "%d\n", phba->fips_spec_rev);
}
+/**
+ * lpfc_dss_show - Return the current state of dss and the configured state
+ * @dev: class converted to a Scsi_host structure.
+ * @attr: device attribute, not used.
+ * @buf: on return contains the formatted text.
+ *
+ * Returns: size of formatted string.
+ **/
+static ssize_t
+lpfc_dss_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct Scsi_Host *shost = class_to_shost(dev);
+ struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
+ struct lpfc_hba *phba = vport->phba;
+
+ return snprintf(buf, PAGE_SIZE, "%s - %sOperational\n",
+ (phba->cfg_enable_dss) ? "Enabled" : "Disabled",
+ (phba->sli3_options & LPFC_SLI3_DSS_ENABLED) ?
+ "" : "Not ");
+}
+
/**
* lpfc_param_show - Return a cfg attribute value in decimal
*
#define LPFC_ATTR(name, defval, minval, maxval, desc) \
static uint lpfc_##name = defval;\
-module_param(lpfc_##name, uint, 0);\
+module_param(lpfc_##name, uint, S_IRUGO);\
MODULE_PARM_DESC(lpfc_##name, desc);\
lpfc_param_init(name, defval, minval, maxval)
#define LPFC_ATTR_R(name, defval, minval, maxval, desc) \
static uint lpfc_##name = defval;\
-module_param(lpfc_##name, uint, 0);\
+module_param(lpfc_##name, uint, S_IRUGO);\
MODULE_PARM_DESC(lpfc_##name, desc);\
lpfc_param_show(name)\
lpfc_param_init(name, defval, minval, maxval)\
#define LPFC_ATTR_RW(name, defval, minval, maxval, desc) \
static uint lpfc_##name = defval;\
-module_param(lpfc_##name, uint, 0);\
+module_param(lpfc_##name, uint, S_IRUGO);\
MODULE_PARM_DESC(lpfc_##name, desc);\
lpfc_param_show(name)\
lpfc_param_init(name, defval, minval, maxval)\
#define LPFC_ATTR_HEX_R(name, defval, minval, maxval, desc) \
static uint lpfc_##name = defval;\
-module_param(lpfc_##name, uint, 0);\
+module_param(lpfc_##name, uint, S_IRUGO);\
MODULE_PARM_DESC(lpfc_##name, desc);\
lpfc_param_hex_show(name)\
lpfc_param_init(name, defval, minval, maxval)\
#define LPFC_ATTR_HEX_RW(name, defval, minval, maxval, desc) \
static uint lpfc_##name = defval;\
-module_param(lpfc_##name, uint, 0);\
+module_param(lpfc_##name, uint, S_IRUGO);\
MODULE_PARM_DESC(lpfc_##name, desc);\
lpfc_param_hex_show(name)\
lpfc_param_init(name, defval, minval, maxval)\
#define LPFC_VPORT_ATTR(name, defval, minval, maxval, desc) \
static uint lpfc_##name = defval;\
-module_param(lpfc_##name, uint, 0);\
+module_param(lpfc_##name, uint, S_IRUGO);\
MODULE_PARM_DESC(lpfc_##name, desc);\
lpfc_vport_param_init(name, defval, minval, maxval)
#define LPFC_VPORT_ATTR_R(name, defval, minval, maxval, desc) \
static uint lpfc_##name = defval;\
-module_param(lpfc_##name, uint, 0);\
+module_param(lpfc_##name, uint, S_IRUGO);\
MODULE_PARM_DESC(lpfc_##name, desc);\
lpfc_vport_param_show(name)\
lpfc_vport_param_init(name, defval, minval, maxval)\
#define LPFC_VPORT_ATTR_RW(name, defval, minval, maxval, desc) \
static uint lpfc_##name = defval;\
-module_param(lpfc_##name, uint, 0);\
+module_param(lpfc_##name, uint, S_IRUGO);\
MODULE_PARM_DESC(lpfc_##name, desc);\
lpfc_vport_param_show(name)\
lpfc_vport_param_init(name, defval, minval, maxval)\
#define LPFC_VPORT_ATTR_HEX_R(name, defval, minval, maxval, desc) \
static uint lpfc_##name = defval;\
-module_param(lpfc_##name, uint, 0);\
+module_param(lpfc_##name, uint, S_IRUGO);\
MODULE_PARM_DESC(lpfc_##name, desc);\
lpfc_vport_param_hex_show(name)\
lpfc_vport_param_init(name, defval, minval, maxval)\
#define LPFC_VPORT_ATTR_HEX_RW(name, defval, minval, maxval, desc) \
static uint lpfc_##name = defval;\
-module_param(lpfc_##name, uint, 0);\
+module_param(lpfc_##name, uint, S_IRUGO);\
MODULE_PARM_DESC(lpfc_##name, desc);\
lpfc_vport_param_hex_show(name)\
lpfc_vport_param_init(name, defval, minval, maxval)\
static DEVICE_ATTR(lpfc_temp_sensor, S_IRUGO, lpfc_temp_sensor_show, NULL);
static DEVICE_ATTR(lpfc_fips_level, S_IRUGO, lpfc_fips_level_show, NULL);
static DEVICE_ATTR(lpfc_fips_rev, S_IRUGO, lpfc_fips_rev_show, NULL);
-
+static DEVICE_ATTR(lpfc_dss, S_IRUGO, lpfc_dss_show, NULL);
static char *lpfc_soft_wwn_key = "C99G71SL8032A";
int stat1=0, stat2=0;
unsigned int i, j, cnt=count;
u8 wwpn[8];
+ int rc;
if (!phba->cfg_enable_hba_reset)
return -EACCES;
"0463 lpfc_soft_wwpn attribute set failed to "
"reinit adapter - %d\n", stat1);
init_completion(&online_compl);
- lpfc_workq_post_event(phba, &stat2, &online_compl, LPFC_EVT_ONLINE);
+ rc = lpfc_workq_post_event(phba, &stat2, &online_compl,
+ LPFC_EVT_ONLINE);
+ if (rc == 0)
+ return -ENOMEM;
+
wait_for_completion(&online_compl);
if (stat2)
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
static int lpfc_poll = 0;
-module_param(lpfc_poll, int, 0);
+module_param(lpfc_poll, int, S_IRUGO);
MODULE_PARM_DESC(lpfc_poll, "FCP ring polling mode control:"
" 0 - none,"
" 1 - poll with interrupts enabled"
lpfc_poll_show, lpfc_poll_store);
int lpfc_sli_mode = 0;
-module_param(lpfc_sli_mode, int, 0);
+module_param(lpfc_sli_mode, int, S_IRUGO);
MODULE_PARM_DESC(lpfc_sli_mode, "SLI mode selector:"
" 0 - auto (SLI-3 if supported),"
" 2 - select SLI-2 even on SLI-3 capable HBAs,"
" 3 - select SLI-3");
int lpfc_enable_npiv = 1;
-module_param(lpfc_enable_npiv, int, 0);
+module_param(lpfc_enable_npiv, int, S_IRUGO);
MODULE_PARM_DESC(lpfc_enable_npiv, "Enable NPIV functionality");
lpfc_param_show(enable_npiv);
lpfc_param_init(enable_npiv, 1, 0, 1);
static DEVICE_ATTR(lpfc_enable_npiv, S_IRUGO, lpfc_enable_npiv_show, NULL);
int lpfc_enable_rrq;
-module_param(lpfc_enable_rrq, int, 0);
+module_param(lpfc_enable_rrq, int, S_IRUGO);
MODULE_PARM_DESC(lpfc_enable_rrq, "Enable RRQ functionality");
lpfc_param_show(enable_rrq);
lpfc_param_init(enable_rrq, 0, 0, 1);
lpfc_txcmplq_hw_show, NULL);
int lpfc_iocb_cnt = 2;
-module_param(lpfc_iocb_cnt, int, 1);
+module_param(lpfc_iocb_cnt, int, S_IRUGO);
MODULE_PARM_DESC(lpfc_iocb_cnt,
"Number of IOCBs alloc for ELS, CT, and ABTS: 1k to 5k IOCBs");
lpfc_param_show(iocb_cnt);
# disappear until the timer expires. Value range is [0,255]. Default
# value is 30.
*/
-module_param(lpfc_devloss_tmo, int, 0);
+module_param(lpfc_devloss_tmo, int, S_IRUGO);
MODULE_PARM_DESC(lpfc_devloss_tmo,
"Seconds driver will hold I/O waiting "
"for a device to come back");
# Default value of this parameter is 1.
*/
static int lpfc_restrict_login = 1;
-module_param(lpfc_restrict_login, int, 0);
+module_param(lpfc_restrict_login, int, S_IRUGO);
MODULE_PARM_DESC(lpfc_restrict_login,
"Restrict virtual ports login to remote initiators.");
lpfc_vport_param_show(restrict_login);
return -EINVAL;
}
static int lpfc_topology = 0;
-module_param(lpfc_topology, int, 0);
+module_param(lpfc_topology, int, S_IRUGO);
MODULE_PARM_DESC(lpfc_topology, "Select Fibre Channel topology");
lpfc_param_show(topology)
lpfc_param_init(topology, 0, 0, 6)
}
static int lpfc_link_speed = 0;
-module_param(lpfc_link_speed, int, 0);
+module_param(lpfc_link_speed, int, S_IRUGO);
MODULE_PARM_DESC(lpfc_link_speed, "Select link speed");
lpfc_param_show(link_speed)
}
static int lpfc_aer_support = 1;
-module_param(lpfc_aer_support, int, 1);
+module_param(lpfc_aer_support, int, S_IRUGO);
MODULE_PARM_DESC(lpfc_aer_support, "Enable PCIe device AER support");
lpfc_param_show(aer_support)
# The value is set in milliseconds.
*/
static int lpfc_max_scsicmpl_time;
-module_param(lpfc_max_scsicmpl_time, int, 0);
+module_param(lpfc_max_scsicmpl_time, int, S_IRUGO);
MODULE_PARM_DESC(lpfc_max_scsicmpl_time,
"Use command completion time to control queue depth");
lpfc_vport_param_show(max_scsicmpl_time);
*/
unsigned int lpfc_prot_mask = SHOST_DIF_TYPE1_PROTECTION;
-module_param(lpfc_prot_mask, uint, 0);
+module_param(lpfc_prot_mask, uint, S_IRUGO);
MODULE_PARM_DESC(lpfc_prot_mask, "host protection mask");
/*
#
*/
unsigned char lpfc_prot_guard = SHOST_DIX_GUARD_IP;
-module_param(lpfc_prot_guard, byte, 0);
+module_param(lpfc_prot_guard, byte, S_IRUGO);
MODULE_PARM_DESC(lpfc_prot_guard, "host protection guard type");
+/*
+ * Delay initial NPort discovery when Clean Address bit is cleared in
+ * FLOGI/FDISC accept and FCID/Fabric name/Fabric portname is changed.
+ * This parameter can have value 0 or 1.
+ * When this parameter is set to 0, no delay is added to the initial
+ * discovery.
+ * When this parameter is set to non-zero value, initial Nport discovery is
+ * delayed by ra_tov seconds when Clean Address bit is cleared in FLOGI/FDISC
+ * accept and FCID/Fabric name/Fabric portname is changed.
+ * Driver always delay Nport discovery for subsequent FLOGI/FDISC completion
+ * when Clean Address bit is cleared in FLOGI/FDISC
+ * accept and FCID/Fabric name/Fabric portname is changed.
+ * Default value is 0.
+ */
+int lpfc_delay_discovery;
+module_param(lpfc_delay_discovery, int, S_IRUGO);
+MODULE_PARM_DESC(lpfc_delay_discovery,
+ "Delay NPort discovery when Clean Address bit is cleared. "
+ "Allowed values: 0,1.");
/*
* lpfc_sg_seg_cnt - Initial Maximum DMA Segment Count
&dev_attr_txcmplq_hw,
&dev_attr_lpfc_fips_level,
&dev_attr_lpfc_fips_rev,
+ &dev_attr_lpfc_dss,
NULL,
};
lpfc_aer_support_init(phba, lpfc_aer_support);
lpfc_suppress_link_up_init(phba, lpfc_suppress_link_up);
lpfc_iocb_cnt_init(phba, lpfc_iocb_cnt);
+ phba->cfg_enable_dss = 1;
return;
}
void lpfc_init_link(struct lpfc_hba *, LPFC_MBOXQ_t *, uint32_t, uint32_t);
void lpfc_request_features(struct lpfc_hba *, struct lpfcMboxq *);
void lpfc_supported_pages(struct lpfcMboxq *);
-void lpfc_sli4_params(struct lpfcMboxq *);
+void lpfc_pc_sli4_params(struct lpfcMboxq *);
int lpfc_pc_sli4_params_get(struct lpfc_hba *, LPFC_MBOXQ_t *);
-
+int lpfc_get_sli4_parameters(struct lpfc_hba *, LPFC_MBOXQ_t *);
struct lpfc_vport *lpfc_find_vport_by_did(struct lpfc_hba *, uint32_t);
void lpfc_cleanup_rcv_buffers(struct lpfc_vport *);
void lpfc_rcv_seq_check_edtov(struct lpfc_vport *);
int lpfc_fdmi_cmd(struct lpfc_vport *, struct lpfc_nodelist *, int);
void lpfc_fdmi_tmo(unsigned long);
void lpfc_fdmi_timeout_handler(struct lpfc_vport *);
+void lpfc_delayed_disc_tmo(unsigned long);
+void lpfc_delayed_disc_timeout_handler(struct lpfc_vport *);
int lpfc_config_port_prep(struct lpfc_hba *);
int lpfc_config_port_post(struct lpfc_hba *);
extern struct fc_function_template lpfc_vport_transport_functions;
extern int lpfc_sli_mode;
extern int lpfc_enable_npiv;
+extern int lpfc_delay_discovery;
int lpfc_vport_symbolic_node_name(struct lpfc_vport *, char *, size_t);
int lpfc_vport_symbolic_port_name(struct lpfc_vport *, char *, size_t);
int lpfc_set_rrq_active(struct lpfc_hba *, struct lpfc_nodelist *,
uint16_t, uint16_t, uint16_t);
void lpfc_cleanup_wt_rrqs(struct lpfc_hba *);
-void lpfc_cleanup_vports_rrqs(struct lpfc_vport *);
+void lpfc_cleanup_vports_rrqs(struct lpfc_vport *, struct lpfc_nodelist *);
struct lpfc_node_rrq *lpfc_get_active_rrq(struct lpfc_vport *, uint16_t,
uint32_t);
return 1;
}
+/**
+ * lpfc_delayed_disc_tmo - Timeout handler for delayed discovery timer.
+ * @ptr - Context object of the timer.
+ *
+ * This function set the WORKER_DELAYED_DISC_TMO flag and wake up
+ * the worker thread.
+ **/
+void
+lpfc_delayed_disc_tmo(unsigned long ptr)
+{
+ struct lpfc_vport *vport = (struct lpfc_vport *)ptr;
+ struct lpfc_hba *phba = vport->phba;
+ uint32_t tmo_posted;
+ unsigned long iflag;
+
+ spin_lock_irqsave(&vport->work_port_lock, iflag);
+ tmo_posted = vport->work_port_events & WORKER_DELAYED_DISC_TMO;
+ if (!tmo_posted)
+ vport->work_port_events |= WORKER_DELAYED_DISC_TMO;
+ spin_unlock_irqrestore(&vport->work_port_lock, iflag);
+
+ if (!tmo_posted)
+ lpfc_worker_wake_up(phba);
+ return;
+}
+
+/**
+ * lpfc_delayed_disc_timeout_handler - Function called by worker thread to
+ * handle delayed discovery.
+ * @vport: pointer to a host virtual N_Port data structure.
+ *
+ * This function start nport discovery of the vport.
+ **/
+void
+lpfc_delayed_disc_timeout_handler(struct lpfc_vport *vport)
+{
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+
+ spin_lock_irq(shost->host_lock);
+ if (!(vport->fc_flag & FC_DISC_DELAYED)) {
+ spin_unlock_irq(shost->host_lock);
+ return;
+ }
+ vport->fc_flag &= ~FC_DISC_DELAYED;
+ spin_unlock_irq(shost->host_lock);
+
+ lpfc_do_scr_ns_plogi(vport->phba, vport);
+}
+
void
lpfc_fdmi_tmo(unsigned long ptr)
{
/*******************************************************************
* This file is part of the Emulex Linux Device Driver for *
* Fibre Channel Host Bus Adapters. *
- * Copyright (C) 2007-2009 Emulex. All rights reserved. *
+ * Copyright (C) 2007-2011 Emulex. All rights reserved. *
* EMULEX and SLI are trademarks of Emulex. *
* www.emulex.com *
* *
* # mount -t debugfs none /sys/kernel/debug
*
* The lpfc debugfs directory hierarchy is:
- * lpfc/lpfcX/vportY
- * where X is the lpfc hba unique_id
+ * /sys/kernel/debug/lpfc/fnX/vportY
+ * where X is the lpfc hba function unique_id
* where Y is the vport VPI on that hba
*
* Debugging services available per vport:
* the HBA. X MUST also be a power of 2.
*/
static int lpfc_debugfs_enable = 1;
-module_param(lpfc_debugfs_enable, int, 0);
+module_param(lpfc_debugfs_enable, int, S_IRUGO);
MODULE_PARM_DESC(lpfc_debugfs_enable, "Enable debugfs services");
/* This MUST be a power of 2 */
static int lpfc_debugfs_max_disc_trc;
-module_param(lpfc_debugfs_max_disc_trc, int, 0);
+module_param(lpfc_debugfs_max_disc_trc, int, S_IRUGO);
MODULE_PARM_DESC(lpfc_debugfs_max_disc_trc,
"Set debugfs discovery trace depth");
/* This MUST be a power of 2 */
static int lpfc_debugfs_max_slow_ring_trc;
-module_param(lpfc_debugfs_max_slow_ring_trc, int, 0);
+module_param(lpfc_debugfs_max_slow_ring_trc, int, S_IRUGO);
MODULE_PARM_DESC(lpfc_debugfs_max_slow_ring_trc,
"Set debugfs slow ring trace depth");
static int lpfc_debugfs_mask_disc_trc;
-module_param(lpfc_debugfs_mask_disc_trc, int, 0);
+module_param(lpfc_debugfs_mask_disc_trc, int, S_IRUGO);
MODULE_PARM_DESC(lpfc_debugfs_mask_disc_trc,
"Set debugfs discovery trace mask");
#include <linux/debugfs.h>
-/* size of output line, for discovery_trace and slow_ring_trace */
-#define LPFC_DEBUG_TRC_ENTRY_SIZE 100
-
-/* nodelist output buffer size */
-#define LPFC_NODELIST_SIZE 8192
-#define LPFC_NODELIST_ENTRY_SIZE 120
-
-/* dumpHBASlim output buffer size */
-#define LPFC_DUMPHBASLIM_SIZE 4096
-
-/* dumpHostSlim output buffer size */
-#define LPFC_DUMPHOSTSLIM_SIZE 4096
-
-/* hbqinfo output buffer size */
-#define LPFC_HBQINFO_SIZE 8192
-
-struct lpfc_debug {
- char *buffer;
- int len;
-};
-
static atomic_t lpfc_debugfs_seq_trc_cnt = ATOMIC_INIT(0);
static unsigned long lpfc_debugfs_start_time = 0L;
+/* iDiag */
+static struct lpfc_idiag idiag;
+
/**
* lpfc_debugfs_disc_trc_data - Dump discovery logging to a buffer
* @vport: The vport to gather the log info from.
return nbytes;
}
-
-
/**
* lpfc_debugfs_nodelist_open - Open the nodelist debugfs file
* @inode: The inode pointer that contains a vport pointer.
size_t nbytes, loff_t *ppos)
{
struct lpfc_debug *debug = file->private_data;
+
return simple_read_from_buffer(buf, nbytes, ppos, debug->buffer,
debug->len);
}
return 0;
}
+/*
+ * iDiag debugfs file access methods
+ */
+
+/*
+ * iDiag PCI config space register access methods:
+ *
+ * The PCI config space register accessees of read, write, read-modify-write
+ * for set bits, and read-modify-write for clear bits to SLI4 PCI functions
+ * are provided. In the proper SLI4 PCI function's debugfs iDiag directory,
+ *
+ * /sys/kernel/debug/lpfc/fn<#>/iDiag
+ *
+ * the access is through the debugfs entry pciCfg:
+ *
+ * 1. For PCI config space register read access, there are two read methods:
+ * A) read a single PCI config space register in the size of a byte
+ * (8 bits), a word (16 bits), or a dword (32 bits); or B) browse through
+ * the 4K extended PCI config space.
+ *
+ * A) Read a single PCI config space register consists of two steps:
+ *
+ * Step-1: Set up PCI config space register read command, the command
+ * syntax is,
+ *
+ * echo 1 <where> <count> > pciCfg
+ *
+ * where, 1 is the iDiag command for PCI config space read, <where> is the
+ * offset from the beginning of the device's PCI config space to read from,
+ * and <count> is the size of PCI config space register data to read back,
+ * it will be 1 for reading a byte (8 bits), 2 for reading a word (16 bits
+ * or 2 bytes), or 4 for reading a dword (32 bits or 4 bytes).
+ *
+ * Setp-2: Perform the debugfs read operation to execute the idiag command
+ * set up in Step-1,
+ *
+ * cat pciCfg
+ *
+ * Examples:
+ * To read PCI device's vendor-id and device-id from PCI config space,
+ *
+ * echo 1 0 4 > pciCfg
+ * cat pciCfg
+ *
+ * To read PCI device's currnt command from config space,
+ *
+ * echo 1 4 2 > pciCfg
+ * cat pciCfg
+ *
+ * B) Browse through the entire 4K extended PCI config space also consists
+ * of two steps:
+ *
+ * Step-1: Set up PCI config space register browsing command, the command
+ * syntax is,
+ *
+ * echo 1 0 4096 > pciCfg
+ *
+ * where, 1 is the iDiag command for PCI config space read, 0 must be used
+ * as the offset for PCI config space register browse, and 4096 must be
+ * used as the count for PCI config space register browse.
+ *
+ * Step-2: Repeately issue the debugfs read operation to browse through
+ * the entire PCI config space registers:
+ *
+ * cat pciCfg
+ * cat pciCfg
+ * cat pciCfg
+ * ...
+ *
+ * When browsing to the end of the 4K PCI config space, the browse method
+ * shall wrap around to start reading from beginning again, and again...
+ *
+ * 2. For PCI config space register write access, it supports a single PCI
+ * config space register write in the size of a byte (8 bits), a word
+ * (16 bits), or a dword (32 bits). The command syntax is,
+ *
+ * echo 2 <where> <count> <value> > pciCfg
+ *
+ * where, 2 is the iDiag command for PCI config space write, <where> is
+ * the offset from the beginning of the device's PCI config space to write
+ * into, <count> is the size of data to write into the PCI config space,
+ * it will be 1 for writing a byte (8 bits), 2 for writing a word (16 bits
+ * or 2 bytes), or 4 for writing a dword (32 bits or 4 bytes), and <value>
+ * is the data to be written into the PCI config space register at the
+ * offset.
+ *
+ * Examples:
+ * To disable PCI device's interrupt assertion,
+ *
+ * 1) Read in device's PCI config space register command field <cmd>:
+ *
+ * echo 1 4 2 > pciCfg
+ * cat pciCfg
+ *
+ * 2) Set bit 10 (Interrupt Disable bit) in the <cmd>:
+ *
+ * <cmd> = <cmd> | (1 < 10)
+ *
+ * 3) Write the modified command back:
+ *
+ * echo 2 4 2 <cmd> > pciCfg
+ *
+ * 3. For PCI config space register set bits access, it supports a single PCI
+ * config space register set bits in the size of a byte (8 bits), a word
+ * (16 bits), or a dword (32 bits). The command syntax is,
+ *
+ * echo 3 <where> <count> <bitmask> > pciCfg
+ *
+ * where, 3 is the iDiag command for PCI config space set bits, <where> is
+ * the offset from the beginning of the device's PCI config space to set
+ * bits into, <count> is the size of the bitmask to set into the PCI config
+ * space, it will be 1 for setting a byte (8 bits), 2 for setting a word
+ * (16 bits or 2 bytes), or 4 for setting a dword (32 bits or 4 bytes), and
+ * <bitmask> is the bitmask, indicating the bits to be set into the PCI
+ * config space register at the offset. The logic performed to the content
+ * of the PCI config space register, regval, is,
+ *
+ * regval |= <bitmask>
+ *
+ * 4. For PCI config space register clear bits access, it supports a single
+ * PCI config space register clear bits in the size of a byte (8 bits),
+ * a word (16 bits), or a dword (32 bits). The command syntax is,
+ *
+ * echo 4 <where> <count> <bitmask> > pciCfg
+ *
+ * where, 4 is the iDiag command for PCI config space clear bits, <where>
+ * is the offset from the beginning of the device's PCI config space to
+ * clear bits from, <count> is the size of the bitmask to set into the PCI
+ * config space, it will be 1 for setting a byte (8 bits), 2 for setting
+ * a word(16 bits or 2 bytes), or 4 for setting a dword (32 bits or 4
+ * bytes), and <bitmask> is the bitmask, indicating the bits to be cleared
+ * from the PCI config space register at the offset. the logic performed
+ * to the content of the PCI config space register, regval, is,
+ *
+ * regval &= ~<bitmask>
+ *
+ * Note, for all single register read, write, set bits, or clear bits access,
+ * the offset (<where>) must be aligned with the size of the data:
+ *
+ * For data size of byte (8 bits), the offset must be aligned to the byte
+ * boundary; for data size of word (16 bits), the offset must be aligned
+ * to the word boundary; while for data size of dword (32 bits), the offset
+ * must be aligned to the dword boundary. Otherwise, the interface will
+ * return the error:
+ *
+ * "-bash: echo: write error: Invalid argument".
+ *
+ * For example:
+ *
+ * echo 1 2 4 > pciCfg
+ * -bash: echo: write error: Invalid argument
+ *
+ * Note also, all of the numbers in the command fields for all read, write,
+ * set bits, and clear bits PCI config space register command fields can be
+ * either decimal or hex.
+ *
+ * For example,
+ * echo 1 0 4096 > pciCfg
+ *
+ * will be the same as
+ * echo 1 0 0x1000 > pciCfg
+ *
+ * And,
+ * echo 2 155 1 10 > pciCfg
+ *
+ * will be
+ * echo 2 0x9b 1 0xa > pciCfg
+ */
+
+/**
+ * lpfc_idiag_cmd_get - Get and parse idiag debugfs comands from user space
+ * @buf: The pointer to the user space buffer.
+ * @nbytes: The number of bytes in the user space buffer.
+ * @idiag_cmd: pointer to the idiag command struct.
+ *
+ * This routine reads data from debugfs user space buffer and parses the
+ * buffer for getting the idiag command and arguments. The while space in
+ * between the set of data is used as the parsing separator.
+ *
+ * This routine returns 0 when successful, it returns proper error code
+ * back to the user space in error conditions.
+ */
+static int lpfc_idiag_cmd_get(const char __user *buf, size_t nbytes,
+ struct lpfc_idiag_cmd *idiag_cmd)
+{
+ char mybuf[64];
+ char *pbuf, *step_str;
+ int bsize, i;
+
+ /* Protect copy from user */
+ if (!access_ok(VERIFY_READ, buf, nbytes))
+ return -EFAULT;
+
+ memset(mybuf, 0, sizeof(mybuf));
+ memset(idiag_cmd, 0, sizeof(*idiag_cmd));
+ bsize = min(nbytes, (sizeof(mybuf)-1));
+
+ if (copy_from_user(mybuf, buf, bsize))
+ return -EFAULT;
+ pbuf = &mybuf[0];
+ step_str = strsep(&pbuf, "\t ");
+
+ /* The opcode must present */
+ if (!step_str)
+ return -EINVAL;
+
+ idiag_cmd->opcode = simple_strtol(step_str, NULL, 0);
+ if (idiag_cmd->opcode == 0)
+ return -EINVAL;
+
+ for (i = 0; i < LPFC_IDIAG_CMD_DATA_SIZE; i++) {
+ step_str = strsep(&pbuf, "\t ");
+ if (!step_str)
+ return 0;
+ idiag_cmd->data[i] = simple_strtol(step_str, NULL, 0);
+ }
+ return 0;
+}
+
+/**
+ * lpfc_idiag_open - idiag open debugfs
+ * @inode: The inode pointer that contains a pointer to phba.
+ * @file: The file pointer to attach the file operation.
+ *
+ * Description:
+ * This routine is the entry point for the debugfs open file operation. It
+ * gets the reference to phba from the i_private field in @inode, it then
+ * allocates buffer for the file operation, performs the necessary PCI config
+ * space read into the allocated buffer according to the idiag user command
+ * setup, and then returns a pointer to buffer in the private_data field in
+ * @file.
+ *
+ * Returns:
+ * This function returns zero if successful. On error it will return an
+ * negative error value.
+ **/
+static int
+lpfc_idiag_open(struct inode *inode, struct file *file)
+{
+ struct lpfc_debug *debug;
+
+ debug = kmalloc(sizeof(*debug), GFP_KERNEL);
+ if (!debug)
+ return -ENOMEM;
+
+ debug->i_private = inode->i_private;
+ debug->buffer = NULL;
+ file->private_data = debug;
+
+ return 0;
+}
+
+/**
+ * lpfc_idiag_release - Release idiag access file operation
+ * @inode: The inode pointer that contains a vport pointer. (unused)
+ * @file: The file pointer that contains the buffer to release.
+ *
+ * Description:
+ * This routine is the generic release routine for the idiag access file
+ * operation, it frees the buffer that was allocated when the debugfs file
+ * was opened.
+ *
+ * Returns:
+ * This function returns zero.
+ **/
+static int
+lpfc_idiag_release(struct inode *inode, struct file *file)
+{
+ struct lpfc_debug *debug = file->private_data;
+
+ /* Free the buffers to the file operation */
+ kfree(debug->buffer);
+ kfree(debug);
+
+ return 0;
+}
+
+/**
+ * lpfc_idiag_cmd_release - Release idiag cmd access file operation
+ * @inode: The inode pointer that contains a vport pointer. (unused)
+ * @file: The file pointer that contains the buffer to release.
+ *
+ * Description:
+ * This routine frees the buffer that was allocated when the debugfs file
+ * was opened. It also reset the fields in the idiag command struct in the
+ * case the command is not continuous browsing of the data structure.
+ *
+ * Returns:
+ * This function returns zero.
+ **/
+static int
+lpfc_idiag_cmd_release(struct inode *inode, struct file *file)
+{
+ struct lpfc_debug *debug = file->private_data;
+
+ /* Read PCI config register, if not read all, clear command fields */
+ if ((debug->op == LPFC_IDIAG_OP_RD) &&
+ (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_RD))
+ if ((idiag.cmd.data[1] == sizeof(uint8_t)) ||
+ (idiag.cmd.data[1] == sizeof(uint16_t)) ||
+ (idiag.cmd.data[1] == sizeof(uint32_t)))
+ memset(&idiag, 0, sizeof(idiag));
+
+ /* Write PCI config register, clear command fields */
+ if ((debug->op == LPFC_IDIAG_OP_WR) &&
+ (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR))
+ memset(&idiag, 0, sizeof(idiag));
+
+ /* Free the buffers to the file operation */
+ kfree(debug->buffer);
+ kfree(debug);
+
+ return 0;
+}
+
+/**
+ * lpfc_idiag_pcicfg_read - idiag debugfs read pcicfg
+ * @file: The file pointer to read from.
+ * @buf: The buffer to copy the data to.
+ * @nbytes: The number of bytes to read.
+ * @ppos: The position in the file to start reading from.
+ *
+ * Description:
+ * This routine reads data from the @phba pci config space according to the
+ * idiag command, and copies to user @buf. Depending on the PCI config space
+ * read command setup, it does either a single register read of a byte
+ * (8 bits), a word (16 bits), or a dword (32 bits) or browsing through all
+ * registers from the 4K extended PCI config space.
+ *
+ * Returns:
+ * This function returns the amount of data that was read (this could be less
+ * than @nbytes if the end of the file was reached) or a negative error value.
+ **/
+static ssize_t
+lpfc_idiag_pcicfg_read(struct file *file, char __user *buf, size_t nbytes,
+ loff_t *ppos)
+{
+ struct lpfc_debug *debug = file->private_data;
+ struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
+ int offset_label, offset, len = 0, index = LPFC_PCI_CFG_RD_SIZE;
+ int where, count;
+ char *pbuffer;
+ struct pci_dev *pdev;
+ uint32_t u32val;
+ uint16_t u16val;
+ uint8_t u8val;
+
+ pdev = phba->pcidev;
+ if (!pdev)
+ return 0;
+
+ /* This is a user read operation */
+ debug->op = LPFC_IDIAG_OP_RD;
+
+ if (!debug->buffer)
+ debug->buffer = kmalloc(LPFC_PCI_CFG_SIZE, GFP_KERNEL);
+ if (!debug->buffer)
+ return 0;
+ pbuffer = debug->buffer;
+
+ if (*ppos)
+ return 0;
+
+ if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_RD) {
+ where = idiag.cmd.data[0];
+ count = idiag.cmd.data[1];
+ } else
+ return 0;
+
+ /* Read single PCI config space register */
+ switch (count) {
+ case SIZE_U8: /* byte (8 bits) */
+ pci_read_config_byte(pdev, where, &u8val);
+ len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
+ "%03x: %02x\n", where, u8val);
+ break;
+ case SIZE_U16: /* word (16 bits) */
+ pci_read_config_word(pdev, where, &u16val);
+ len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
+ "%03x: %04x\n", where, u16val);
+ break;
+ case SIZE_U32: /* double word (32 bits) */
+ pci_read_config_dword(pdev, where, &u32val);
+ len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
+ "%03x: %08x\n", where, u32val);
+ break;
+ case LPFC_PCI_CFG_SIZE: /* browse all */
+ goto pcicfg_browse;
+ break;
+ default:
+ /* illegal count */
+ len = 0;
+ break;
+ }
+ return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
+
+pcicfg_browse:
+
+ /* Browse all PCI config space registers */
+ offset_label = idiag.offset.last_rd;
+ offset = offset_label;
+
+ /* Read PCI config space */
+ len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
+ "%03x: ", offset_label);
+ while (index > 0) {
+ pci_read_config_dword(pdev, offset, &u32val);
+ len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
+ "%08x ", u32val);
+ offset += sizeof(uint32_t);
+ index -= sizeof(uint32_t);
+ if (!index)
+ len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
+ "\n");
+ else if (!(index % (8 * sizeof(uint32_t)))) {
+ offset_label += (8 * sizeof(uint32_t));
+ len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
+ "\n%03x: ", offset_label);
+ }
+ }
+
+ /* Set up the offset for next portion of pci cfg read */
+ idiag.offset.last_rd += LPFC_PCI_CFG_RD_SIZE;
+ if (idiag.offset.last_rd >= LPFC_PCI_CFG_SIZE)
+ idiag.offset.last_rd = 0;
+
+ return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
+}
+
+/**
+ * lpfc_idiag_pcicfg_write - Syntax check and set up idiag pcicfg commands
+ * @file: The file pointer to read from.
+ * @buf: The buffer to copy the user data from.
+ * @nbytes: The number of bytes to get.
+ * @ppos: The position in the file to start reading from.
+ *
+ * This routine get the debugfs idiag command struct from user space and
+ * then perform the syntax check for PCI config space read or write command
+ * accordingly. In the case of PCI config space read command, it sets up
+ * the command in the idiag command struct for the debugfs read operation.
+ * In the case of PCI config space write operation, it executes the write
+ * operation into the PCI config space accordingly.
+ *
+ * It returns the @nbytges passing in from debugfs user space when successful.
+ * In case of error conditions, it returns proper error code back to the user
+ * space.
+ */
+static ssize_t
+lpfc_idiag_pcicfg_write(struct file *file, const char __user *buf,
+ size_t nbytes, loff_t *ppos)
+{
+ struct lpfc_debug *debug = file->private_data;
+ struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
+ uint32_t where, value, count;
+ uint32_t u32val;
+ uint16_t u16val;
+ uint8_t u8val;
+ struct pci_dev *pdev;
+ int rc;
+
+ pdev = phba->pcidev;
+ if (!pdev)
+ return -EFAULT;
+
+ /* This is a user write operation */
+ debug->op = LPFC_IDIAG_OP_WR;
+
+ rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd);
+ if (rc)
+ return rc;
+
+ if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_RD) {
+ /* Read command from PCI config space, set up command fields */
+ where = idiag.cmd.data[0];
+ count = idiag.cmd.data[1];
+ if (count == LPFC_PCI_CFG_SIZE) {
+ if (where != 0)
+ goto error_out;
+ } else if ((count != sizeof(uint8_t)) &&
+ (count != sizeof(uint16_t)) &&
+ (count != sizeof(uint32_t)))
+ goto error_out;
+ if (count == sizeof(uint8_t)) {
+ if (where > LPFC_PCI_CFG_SIZE - sizeof(uint8_t))
+ goto error_out;
+ if (where % sizeof(uint8_t))
+ goto error_out;
+ }
+ if (count == sizeof(uint16_t)) {
+ if (where > LPFC_PCI_CFG_SIZE - sizeof(uint16_t))
+ goto error_out;
+ if (where % sizeof(uint16_t))
+ goto error_out;
+ }
+ if (count == sizeof(uint32_t)) {
+ if (where > LPFC_PCI_CFG_SIZE - sizeof(uint32_t))
+ goto error_out;
+ if (where % sizeof(uint32_t))
+ goto error_out;
+ }
+ } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR ||
+ idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST ||
+ idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) {
+ /* Write command to PCI config space, read-modify-write */
+ where = idiag.cmd.data[0];
+ count = idiag.cmd.data[1];
+ value = idiag.cmd.data[2];
+ /* Sanity checks */
+ if ((count != sizeof(uint8_t)) &&
+ (count != sizeof(uint16_t)) &&
+ (count != sizeof(uint32_t)))
+ goto error_out;
+ if (count == sizeof(uint8_t)) {
+ if (where > LPFC_PCI_CFG_SIZE - sizeof(uint8_t))
+ goto error_out;
+ if (where % sizeof(uint8_t))
+ goto error_out;
+ if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR)
+ pci_write_config_byte(pdev, where,
+ (uint8_t)value);
+ if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) {
+ rc = pci_read_config_byte(pdev, where, &u8val);
+ if (!rc) {
+ u8val |= (uint8_t)value;
+ pci_write_config_byte(pdev, where,
+ u8val);
+ }
+ }
+ if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) {
+ rc = pci_read_config_byte(pdev, where, &u8val);
+ if (!rc) {
+ u8val &= (uint8_t)(~value);
+ pci_write_config_byte(pdev, where,
+ u8val);
+ }
+ }
+ }
+ if (count == sizeof(uint16_t)) {
+ if (where > LPFC_PCI_CFG_SIZE - sizeof(uint16_t))
+ goto error_out;
+ if (where % sizeof(uint16_t))
+ goto error_out;
+ if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR)
+ pci_write_config_word(pdev, where,
+ (uint16_t)value);
+ if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) {
+ rc = pci_read_config_word(pdev, where, &u16val);
+ if (!rc) {
+ u16val |= (uint16_t)value;
+ pci_write_config_word(pdev, where,
+ u16val);
+ }
+ }
+ if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) {
+ rc = pci_read_config_word(pdev, where, &u16val);
+ if (!rc) {
+ u16val &= (uint16_t)(~value);
+ pci_write_config_word(pdev, where,
+ u16val);
+ }
+ }
+ }
+ if (count == sizeof(uint32_t)) {
+ if (where > LPFC_PCI_CFG_SIZE - sizeof(uint32_t))
+ goto error_out;
+ if (where % sizeof(uint32_t))
+ goto error_out;
+ if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR)
+ pci_write_config_dword(pdev, where, value);
+ if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) {
+ rc = pci_read_config_dword(pdev, where,
+ &u32val);
+ if (!rc) {
+ u32val |= value;
+ pci_write_config_dword(pdev, where,
+ u32val);
+ }
+ }
+ if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) {
+ rc = pci_read_config_dword(pdev, where,
+ &u32val);
+ if (!rc) {
+ u32val &= ~value;
+ pci_write_config_dword(pdev, where,
+ u32val);
+ }
+ }
+ }
+ } else
+ /* All other opecodes are illegal for now */
+ goto error_out;
+
+ return nbytes;
+error_out:
+ memset(&idiag, 0, sizeof(idiag));
+ return -EINVAL;
+}
+
+/**
+ * lpfc_idiag_queinfo_read - idiag debugfs read queue information
+ * @file: The file pointer to read from.
+ * @buf: The buffer to copy the data to.
+ * @nbytes: The number of bytes to read.
+ * @ppos: The position in the file to start reading from.
+ *
+ * Description:
+ * This routine reads data from the @phba SLI4 PCI function queue information,
+ * and copies to user @buf.
+ *
+ * Returns:
+ * This function returns the amount of data that was read (this could be less
+ * than @nbytes if the end of the file was reached) or a negative error value.
+ **/
+static ssize_t
+lpfc_idiag_queinfo_read(struct file *file, char __user *buf, size_t nbytes,
+ loff_t *ppos)
+{
+ struct lpfc_debug *debug = file->private_data;
+ struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
+ int len = 0, fcp_qidx;
+ char *pbuffer;
+
+ if (!debug->buffer)
+ debug->buffer = kmalloc(LPFC_QUE_INFO_GET_BUF_SIZE, GFP_KERNEL);
+ if (!debug->buffer)
+ return 0;
+ pbuffer = debug->buffer;
+
+ if (*ppos)
+ return 0;
+
+ /* Get slow-path event queue information */
+ len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
+ "Slow-path EQ information:\n");
+ len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
+ "\tID [%02d], EQE-COUNT [%04d], "
+ "HOST-INDEX [%04x], PORT-INDEX [%04x]\n\n",
+ phba->sli4_hba.sp_eq->queue_id,
+ phba->sli4_hba.sp_eq->entry_count,
+ phba->sli4_hba.sp_eq->host_index,
+ phba->sli4_hba.sp_eq->hba_index);
+
+ /* Get fast-path event queue information */
+ len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
+ "Fast-path EQ information:\n");
+ for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) {
+ len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
+ "\tID [%02d], EQE-COUNT [%04d], "
+ "HOST-INDEX [%04x], PORT-INDEX [%04x]\n",
+ phba->sli4_hba.fp_eq[fcp_qidx]->queue_id,
+ phba->sli4_hba.fp_eq[fcp_qidx]->entry_count,
+ phba->sli4_hba.fp_eq[fcp_qidx]->host_index,
+ phba->sli4_hba.fp_eq[fcp_qidx]->hba_index);
+ }
+ len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n");
+
+ /* Get mailbox complete queue information */
+ len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
+ "Mailbox CQ information:\n");
+ len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
+ "\t\tAssociated EQ-ID [%02d]:\n",
+ phba->sli4_hba.mbx_cq->assoc_qid);
+ len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
+ "\tID [%02d], CQE-COUNT [%04d], "
+ "HOST-INDEX [%04x], PORT-INDEX [%04x]\n\n",
+ phba->sli4_hba.mbx_cq->queue_id,
+ phba->sli4_hba.mbx_cq->entry_count,
+ phba->sli4_hba.mbx_cq->host_index,
+ phba->sli4_hba.mbx_cq->hba_index);
+
+ /* Get slow-path complete queue information */
+ len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
+ "Slow-path CQ information:\n");
+ len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
+ "\t\tAssociated EQ-ID [%02d]:\n",
+ phba->sli4_hba.els_cq->assoc_qid);
+ len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
+ "\tID [%02d], CQE-COUNT [%04d], "
+ "HOST-INDEX [%04x], PORT-INDEX [%04x]\n\n",
+ phba->sli4_hba.els_cq->queue_id,
+ phba->sli4_hba.els_cq->entry_count,
+ phba->sli4_hba.els_cq->host_index,
+ phba->sli4_hba.els_cq->hba_index);
+
+ /* Get fast-path complete queue information */
+ len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
+ "Fast-path CQ information:\n");
+ for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) {
+ len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
+ "\t\tAssociated EQ-ID [%02d]:\n",
+ phba->sli4_hba.fcp_cq[fcp_qidx]->assoc_qid);
+ len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
+ "\tID [%02d], EQE-COUNT [%04d], "
+ "HOST-INDEX [%04x], PORT-INDEX [%04x]\n",
+ phba->sli4_hba.fcp_cq[fcp_qidx]->queue_id,
+ phba->sli4_hba.fcp_cq[fcp_qidx]->entry_count,
+ phba->sli4_hba.fcp_cq[fcp_qidx]->host_index,
+ phba->sli4_hba.fcp_cq[fcp_qidx]->hba_index);
+ }
+ len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n");
+
+ /* Get mailbox queue information */
+ len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
+ "Mailbox MQ information:\n");
+ len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
+ "\t\tAssociated CQ-ID [%02d]:\n",
+ phba->sli4_hba.mbx_wq->assoc_qid);
+ len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
+ "\tID [%02d], MQE-COUNT [%04d], "
+ "HOST-INDEX [%04x], PORT-INDEX [%04x]\n\n",
+ phba->sli4_hba.mbx_wq->queue_id,
+ phba->sli4_hba.mbx_wq->entry_count,
+ phba->sli4_hba.mbx_wq->host_index,
+ phba->sli4_hba.mbx_wq->hba_index);
+
+ /* Get slow-path work queue information */
+ len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
+ "Slow-path WQ information:\n");
+ len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
+ "\t\tAssociated CQ-ID [%02d]:\n",
+ phba->sli4_hba.els_wq->assoc_qid);
+ len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
+ "\tID [%02d], WQE-COUNT [%04d], "
+ "HOST-INDEX [%04x], PORT-INDEX [%04x]\n\n",
+ phba->sli4_hba.els_wq->queue_id,
+ phba->sli4_hba.els_wq->entry_count,
+ phba->sli4_hba.els_wq->host_index,
+ phba->sli4_hba.els_wq->hba_index);
+
+ /* Get fast-path work queue information */
+ len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
+ "Fast-path WQ information:\n");
+ for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++) {
+ len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
+ "\t\tAssociated CQ-ID [%02d]:\n",
+ phba->sli4_hba.fcp_wq[fcp_qidx]->assoc_qid);
+ len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
+ "\tID [%02d], WQE-COUNT [%04d], "
+ "HOST-INDEX [%04x], PORT-INDEX [%04x]\n",
+ phba->sli4_hba.fcp_wq[fcp_qidx]->queue_id,
+ phba->sli4_hba.fcp_wq[fcp_qidx]->entry_count,
+ phba->sli4_hba.fcp_wq[fcp_qidx]->host_index,
+ phba->sli4_hba.fcp_wq[fcp_qidx]->hba_index);
+ }
+ len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n");
+
+ /* Get receive queue information */
+ len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
+ "Slow-path RQ information:\n");
+ len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
+ "\t\tAssociated CQ-ID [%02d]:\n",
+ phba->sli4_hba.hdr_rq->assoc_qid);
+ len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
+ "\tID [%02d], RHQE-COUNT [%04d], "
+ "HOST-INDEX [%04x], PORT-INDEX [%04x]\n",
+ phba->sli4_hba.hdr_rq->queue_id,
+ phba->sli4_hba.hdr_rq->entry_count,
+ phba->sli4_hba.hdr_rq->host_index,
+ phba->sli4_hba.hdr_rq->hba_index);
+ len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
+ "\tID [%02d], RDQE-COUNT [%04d], "
+ "HOST-INDEX [%04x], PORT-INDEX [%04x]\n",
+ phba->sli4_hba.dat_rq->queue_id,
+ phba->sli4_hba.dat_rq->entry_count,
+ phba->sli4_hba.dat_rq->host_index,
+ phba->sli4_hba.dat_rq->hba_index);
+
+ return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
+}
+
#undef lpfc_debugfs_op_disc_trc
static const struct file_operations lpfc_debugfs_op_disc_trc = {
.owner = THIS_MODULE,
static struct dentry *lpfc_debugfs_root = NULL;
static atomic_t lpfc_debugfs_hba_count;
+
+/*
+ * File operations for the iDiag debugfs
+ */
+#undef lpfc_idiag_op_pciCfg
+static const struct file_operations lpfc_idiag_op_pciCfg = {
+ .owner = THIS_MODULE,
+ .open = lpfc_idiag_open,
+ .llseek = lpfc_debugfs_lseek,
+ .read = lpfc_idiag_pcicfg_read,
+ .write = lpfc_idiag_pcicfg_write,
+ .release = lpfc_idiag_cmd_release,
+};
+
+#undef lpfc_idiag_op_queInfo
+static const struct file_operations lpfc_idiag_op_queInfo = {
+ .owner = THIS_MODULE,
+ .open = lpfc_idiag_open,
+ .read = lpfc_idiag_queinfo_read,
+ .release = lpfc_idiag_release,
+};
+
#endif
/**
if (!lpfc_debugfs_start_time)
lpfc_debugfs_start_time = jiffies;
- /* Setup lpfcX directory for specific HBA */
- snprintf(name, sizeof(name), "lpfc%d", phba->brd_no);
+ /* Setup funcX directory for specific HBA PCI function */
+ snprintf(name, sizeof(name), "fn%d", phba->brd_no);
if (!phba->hba_debugfs_root) {
phba->hba_debugfs_root =
debugfs_create_dir(name, lpfc_debugfs_root);
}
/* Setup dumpHBASlim */
- snprintf(name, sizeof(name), "dumpHBASlim");
- phba->debug_dumpHBASlim =
- debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
- phba->hba_debugfs_root,
- phba, &lpfc_debugfs_op_dumpHBASlim);
- if (!phba->debug_dumpHBASlim) {
- lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
- "0413 Cannot create debugfs dumpHBASlim\n");
- goto debug_failed;
- }
+ if (phba->sli_rev < LPFC_SLI_REV4) {
+ snprintf(name, sizeof(name), "dumpHBASlim");
+ phba->debug_dumpHBASlim =
+ debugfs_create_file(name,
+ S_IFREG|S_IRUGO|S_IWUSR,
+ phba->hba_debugfs_root,
+ phba, &lpfc_debugfs_op_dumpHBASlim);
+ if (!phba->debug_dumpHBASlim) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
+ "0413 Cannot create debugfs "
+ "dumpHBASlim\n");
+ goto debug_failed;
+ }
+ } else
+ phba->debug_dumpHBASlim = NULL;
/* Setup dumpHostSlim */
- snprintf(name, sizeof(name), "dumpHostSlim");
- phba->debug_dumpHostSlim =
- debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
- phba->hba_debugfs_root,
- phba, &lpfc_debugfs_op_dumpHostSlim);
- if (!phba->debug_dumpHostSlim) {
- lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
- "0414 Cannot create debugfs dumpHostSlim\n");
- goto debug_failed;
- }
+ if (phba->sli_rev < LPFC_SLI_REV4) {
+ snprintf(name, sizeof(name), "dumpHostSlim");
+ phba->debug_dumpHostSlim =
+ debugfs_create_file(name,
+ S_IFREG|S_IRUGO|S_IWUSR,
+ phba->hba_debugfs_root,
+ phba, &lpfc_debugfs_op_dumpHostSlim);
+ if (!phba->debug_dumpHostSlim) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
+ "0414 Cannot create debugfs "
+ "dumpHostSlim\n");
+ goto debug_failed;
+ }
+ } else
+ phba->debug_dumpHBASlim = NULL;
/* Setup dumpData */
snprintf(name, sizeof(name), "dumpData");
goto debug_failed;
}
-
-
/* Setup slow ring trace */
if (lpfc_debugfs_max_slow_ring_trc) {
num = lpfc_debugfs_max_slow_ring_trc - 1;
}
}
-
snprintf(name, sizeof(name), "slow_ring_trace");
phba->debug_slow_ring_trc =
debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
"0409 Cant create debugfs nodelist\n");
goto debug_failed;
}
+
+ /*
+ * iDiag debugfs root entry points for SLI4 device only
+ */
+ if (phba->sli_rev < LPFC_SLI_REV4)
+ goto debug_failed;
+
+ snprintf(name, sizeof(name), "iDiag");
+ if (!phba->idiag_root) {
+ phba->idiag_root =
+ debugfs_create_dir(name, phba->hba_debugfs_root);
+ if (!phba->idiag_root) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
+ "2922 Can't create idiag debugfs\n");
+ goto debug_failed;
+ }
+ /* Initialize iDiag data structure */
+ memset(&idiag, 0, sizeof(idiag));
+ }
+
+ /* iDiag read PCI config space */
+ snprintf(name, sizeof(name), "pciCfg");
+ if (!phba->idiag_pci_cfg) {
+ phba->idiag_pci_cfg =
+ debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
+ phba->idiag_root, phba, &lpfc_idiag_op_pciCfg);
+ if (!phba->idiag_pci_cfg) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
+ "2923 Can't create idiag debugfs\n");
+ goto debug_failed;
+ }
+ idiag.offset.last_rd = 0;
+ }
+
+ /* iDiag get PCI function queue information */
+ snprintf(name, sizeof(name), "queInfo");
+ if (!phba->idiag_que_info) {
+ phba->idiag_que_info =
+ debugfs_create_file(name, S_IFREG|S_IRUGO,
+ phba->idiag_root, phba, &lpfc_idiag_op_queInfo);
+ if (!phba->idiag_que_info) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
+ "2924 Can't create idiag debugfs\n");
+ goto debug_failed;
+ }
+ }
+
debug_failed:
return;
#endif
phba->debug_slow_ring_trc = NULL;
}
+ /*
+ * iDiag release
+ */
+ if (phba->sli_rev == LPFC_SLI_REV4) {
+ if (phba->idiag_que_info) {
+ /* iDiag queInfo */
+ debugfs_remove(phba->idiag_que_info);
+ phba->idiag_que_info = NULL;
+ }
+ if (phba->idiag_pci_cfg) {
+ /* iDiag pciCfg */
+ debugfs_remove(phba->idiag_pci_cfg);
+ phba->idiag_pci_cfg = NULL;
+ }
+
+ /* Finally remove the iDiag debugfs root */
+ if (phba->idiag_root) {
+ /* iDiag root */
+ debugfs_remove(phba->idiag_root);
+ phba->idiag_root = NULL;
+ }
+ }
+
if (phba->hba_debugfs_root) {
- debugfs_remove(phba->hba_debugfs_root); /* lpfcX */
+ debugfs_remove(phba->hba_debugfs_root); /* fnX */
phba->hba_debugfs_root = NULL;
atomic_dec(&lpfc_debugfs_hba_count);
}
/*******************************************************************
* This file is part of the Emulex Linux Device Driver for *
* Fibre Channel Host Bus Adapters. *
- * Copyright (C) 2007 Emulex. All rights reserved. *
+ * Copyright (C) 2007-2011 Emulex. All rights reserved. *
* EMULEX and SLI are trademarks of Emulex. *
* www.emulex.com *
* *
#define _H_LPFC_DEBUG_FS
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
+
+/* size of output line, for discovery_trace and slow_ring_trace */
+#define LPFC_DEBUG_TRC_ENTRY_SIZE 100
+
+/* nodelist output buffer size */
+#define LPFC_NODELIST_SIZE 8192
+#define LPFC_NODELIST_ENTRY_SIZE 120
+
+/* dumpHBASlim output buffer size */
+#define LPFC_DUMPHBASLIM_SIZE 4096
+
+/* dumpHostSlim output buffer size */
+#define LPFC_DUMPHOSTSLIM_SIZE 4096
+
+/* hbqinfo output buffer size */
+#define LPFC_HBQINFO_SIZE 8192
+
+/* rdPciConf output buffer size */
+#define LPFC_PCI_CFG_SIZE 4096
+#define LPFC_PCI_CFG_RD_BUF_SIZE (LPFC_PCI_CFG_SIZE/2)
+#define LPFC_PCI_CFG_RD_SIZE (LPFC_PCI_CFG_SIZE/4)
+
+/* queue info output buffer size */
+#define LPFC_QUE_INFO_GET_BUF_SIZE 2048
+
+#define SIZE_U8 sizeof(uint8_t)
+#define SIZE_U16 sizeof(uint16_t)
+#define SIZE_U32 sizeof(uint32_t)
+
+struct lpfc_debug {
+ char *i_private;
+ char op;
+#define LPFC_IDIAG_OP_RD 1
+#define LPFC_IDIAG_OP_WR 2
+ char *buffer;
+ int len;
+};
+
struct lpfc_debugfs_trc {
char *fmt;
uint32_t data1;
uint32_t seq_cnt;
unsigned long jif;
};
+
+struct lpfc_idiag_offset {
+ uint32_t last_rd;
+};
+
+#define LPFC_IDIAG_CMD_DATA_SIZE 4
+struct lpfc_idiag_cmd {
+ uint32_t opcode;
+#define LPFC_IDIAG_CMD_PCICFG_RD 0x00000001
+#define LPFC_IDIAG_CMD_PCICFG_WR 0x00000002
+#define LPFC_IDIAG_CMD_PCICFG_ST 0x00000003
+#define LPFC_IDIAG_CMD_PCICFG_CL 0x00000004
+ uint32_t data[LPFC_IDIAG_CMD_DATA_SIZE];
+};
+
+struct lpfc_idiag {
+ uint32_t active;
+ struct lpfc_idiag_cmd cmd;
+ struct lpfc_idiag_offset offset;
+};
#endif
/* Mask for discovery_trace */
/*******************************************************************
* This file is part of the Emulex Linux Device Driver for *
* Fibre Channel Host Bus Adapters. *
- * Copyright (C) 2004-2009 Emulex. All rights reserved. *
+ * Copyright (C) 2004-2011 Emulex. All rights reserved. *
* EMULEX and SLI are trademarks of Emulex. *
* www.emulex.com *
* Portions Copyright (C) 2004-2005 Christoph Hellwig *
return rc;
}
+/**
+ * lpfc_check_clean_addr_bit - Check whether assigned FCID is clean.
+ * @vport: pointer to a host virtual N_Port data structure.
+ * @sp: pointer to service parameter data structure.
+ *
+ * This routine is called from FLOGI/FDISC completion handler functions.
+ * lpfc_check_clean_addr_bit return 1 when FCID/Fabric portname/ Fabric
+ * node nodename is changed in the completion service parameter else return
+ * 0. This function also set flag in the vport data structure to delay
+ * NP_Port discovery after the FLOGI/FDISC completion if Clean address bit
+ * in FLOGI/FDISC response is cleared and FCID/Fabric portname/ Fabric
+ * node nodename is changed in the completion service parameter.
+ *
+ * Return code
+ * 0 - FCID and Fabric Nodename and Fabric portname is not changed.
+ * 1 - FCID or Fabric Nodename or Fabric portname is changed.
+ *
+ **/
+static uint8_t
+lpfc_check_clean_addr_bit(struct lpfc_vport *vport,
+ struct serv_parm *sp)
+{
+ uint8_t fabric_param_changed = 0;
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+
+ if ((vport->fc_prevDID != vport->fc_myDID) ||
+ memcmp(&vport->fabric_portname, &sp->portName,
+ sizeof(struct lpfc_name)) ||
+ memcmp(&vport->fabric_nodename, &sp->nodeName,
+ sizeof(struct lpfc_name)))
+ fabric_param_changed = 1;
+
+ /*
+ * Word 1 Bit 31 in common service parameter is overloaded.
+ * Word 1 Bit 31 in FLOGI request is multiple NPort request
+ * Word 1 Bit 31 in FLOGI response is clean address bit
+ *
+ * If fabric parameter is changed and clean address bit is
+ * cleared delay nport discovery if
+ * - vport->fc_prevDID != 0 (not initial discovery) OR
+ * - lpfc_delay_discovery module parameter is set.
+ */
+ if (fabric_param_changed && !sp->cmn.clean_address_bit &&
+ (vport->fc_prevDID || lpfc_delay_discovery)) {
+ spin_lock_irq(shost->host_lock);
+ vport->fc_flag |= FC_DISC_DELAYED;
+ spin_unlock_irq(shost->host_lock);
+ }
+
+ return fabric_param_changed;
+}
+
+
/**
* lpfc_cmpl_els_flogi_fabric - Completion function for flogi to a fabric port
* @vport: pointer to a host virtual N_Port data structure.
struct lpfc_hba *phba = vport->phba;
struct lpfc_nodelist *np;
struct lpfc_nodelist *next_np;
+ uint8_t fabric_param_changed;
spin_lock_irq(shost->host_lock);
vport->fc_flag |= FC_FABRIC;
ndlp->nlp_class_sup |= FC_COS_CLASS4;
ndlp->nlp_maxframe = ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) |
sp->cmn.bbRcvSizeLsb;
+
+ fabric_param_changed = lpfc_check_clean_addr_bit(vport, sp);
+ memcpy(&vport->fabric_portname, &sp->portName,
+ sizeof(struct lpfc_name));
+ memcpy(&vport->fabric_nodename, &sp->nodeName,
+ sizeof(struct lpfc_name));
memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm));
if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) {
}
}
- if ((vport->fc_prevDID != vport->fc_myDID) &&
+ if (fabric_param_changed &&
!(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) {
/* If our NportID changed, we need to ensure all
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
IOCB_t *irsp;
struct lpfc_sli *psli;
+ struct lpfcMboxq *mbox;
psli = &phba->sli;
/* we pass cmdiocb to state machine which needs rspiocb as well */
NLP_EVT_CMPL_LOGO);
out:
lpfc_els_free_iocb(phba, cmdiocb);
+ /* If we are in pt2pt mode, we could rcv new S_ID on PLOGI */
+ if ((vport->fc_flag & FC_PT2PT) &&
+ !(vport->fc_flag & FC_PT2PT_PLOGI)) {
+ phba->pport->fc_myDID = 0;
+ mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+ if (mbox) {
+ lpfc_config_link(phba, mbox);
+ mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
+ mbox->vport = vport;
+ if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) ==
+ MBX_NOT_FINISHED) {
+ mempool_free(mbox, phba->mbox_mem_pool);
+ }
+ }
+ }
return;
}
}
break;
case ELS_CMD_FDISC:
- lpfc_issue_els_fdisc(vport, ndlp, retry);
+ if (!(vport->fc_flag & FC_VPORT_NEEDS_INIT_VPI))
+ lpfc_issue_els_fdisc(vport, ndlp, retry);
break;
}
return;
switch (irsp->ulpStatus) {
case IOSTAT_FCP_RSP_ERROR:
+ break;
case IOSTAT_REMOTE_STOP:
+ if (phba->sli_rev == LPFC_SLI_REV4) {
+ /* This IO was aborted by the target, we don't
+ * know the rxid and because we did not send the
+ * ABTS we cannot generate and RRQ.
+ */
+ lpfc_set_rrq_active(phba, ndlp,
+ cmdiocb->sli4_xritag, 0, 0);
+ }
break;
-
case IOSTAT_LOCAL_REJECT:
switch ((irsp->un.ulpWord[4] & 0xff)) {
case IOERR_LOOP_OPEN_FAILURE:
uint8_t *pcmd;
struct RRQ *rrq;
uint16_t rxid;
+ uint16_t xri;
struct lpfc_node_rrq *prrq;
pcmd = (uint8_t *) (((struct lpfc_dmabuf *) iocb->context2)->virt);
pcmd += sizeof(uint32_t);
rrq = (struct RRQ *)pcmd;
- rxid = bf_get(rrq_oxid, rrq);
+ rrq->rrq_exchg = be32_to_cpu(rrq->rrq_exchg);
+ rxid = be16_to_cpu(bf_get(rrq_rxid, rrq));
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
"2883 Clear RRQ for SID:x%x OXID:x%x RXID:x%x"
" x%x x%x\n",
- bf_get(rrq_did, rrq),
- bf_get(rrq_oxid, rrq),
+ be32_to_cpu(bf_get(rrq_did, rrq)),
+ be16_to_cpu(bf_get(rrq_oxid, rrq)),
rxid,
iocb->iotag, iocb->iocb.ulpContext);
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
"Clear RRQ: did:x%x flg:x%x exchg:x%.08x",
ndlp->nlp_DID, ndlp->nlp_flag, rrq->rrq_exchg);
- prrq = lpfc_get_active_rrq(vport, rxid, ndlp->nlp_DID);
+ if (vport->fc_myDID == be32_to_cpu(bf_get(rrq_did, rrq)))
+ xri = be16_to_cpu(bf_get(rrq_oxid, rrq));
+ else
+ xri = rxid;
+ prrq = lpfc_get_active_rrq(vport, xri, ndlp->nlp_DID);
if (prrq)
- lpfc_clr_rrq_active(phba, rxid, prrq);
+ lpfc_clr_rrq_active(phba, xri, prrq);
return;
}
if (vport->load_flag & FC_UNLOADING)
goto dropit;
+ /* If NPort discovery is delayed drop incoming ELS */
+ if ((vport->fc_flag & FC_DISC_DELAYED) &&
+ (cmd != ELS_CMD_PLOGI))
+ goto dropit;
+
ndlp = lpfc_findnode_did(vport, did);
if (!ndlp) {
/* Cannot find existing Fabric ndlp, so allocate a new one */
ndlp = lpfc_plogi_confirm_nport(phba, payload, ndlp);
lpfc_send_els_event(vport, ndlp, payload);
+
+ /* If Nport discovery is delayed, reject PLOGIs */
+ if (vport->fc_flag & FC_DISC_DELAYED) {
+ rjt_err = LSRJT_UNABLE_TPC;
+ break;
+ }
if (vport->port_state < LPFC_DISC_AUTH) {
if (!(phba->pport->fc_flag & FC_PT2PT) ||
(phba->pport->fc_flag & FC_PT2PT_PLOGI)) {
lpfc_do_scr_ns_plogi(struct lpfc_hba *phba, struct lpfc_vport *vport)
{
struct lpfc_nodelist *ndlp, *ndlp_fdmi;
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+
+ /*
+ * If lpfc_delay_discovery parameter is set and the clean address
+ * bit is cleared and fc fabric parameters chenged, delay FC NPort
+ * discovery.
+ */
+ spin_lock_irq(shost->host_lock);
+ if (vport->fc_flag & FC_DISC_DELAYED) {
+ spin_unlock_irq(shost->host_lock);
+ mod_timer(&vport->delayed_disc_tmo,
+ jiffies + HZ * phba->fc_ratov);
+ return;
+ }
+ spin_unlock_irq(shost->host_lock);
ndlp = lpfc_findnode_did(vport, NameServer_DID);
if (!ndlp) {
struct lpfc_nodelist *next_np;
IOCB_t *irsp = &rspiocb->iocb;
struct lpfc_iocbq *piocb;
+ struct lpfc_dmabuf *pcmd = cmdiocb->context2, *prsp;
+ struct serv_parm *sp;
+ uint8_t fabric_param_changed;
lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
"0123 FDISC completes. x%x/x%x prevDID: x%x\n",
vport->fc_myDID = irsp->un.ulpWord[4] & Mask_DID;
lpfc_vport_set_state(vport, FC_VPORT_ACTIVE);
- if ((vport->fc_prevDID != vport->fc_myDID) &&
+ prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list);
+ sp = prsp->virt + sizeof(uint32_t);
+ fabric_param_changed = lpfc_check_clean_addr_bit(vport, sp);
+ memcpy(&vport->fabric_portname, &sp->portName,
+ sizeof(struct lpfc_name));
+ memcpy(&vport->fabric_nodename, &sp->nodeName,
+ sizeof(struct lpfc_name));
+ if (fabric_param_changed &&
!(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) {
/* If our NportID changed, we need to ensure all
* remaining NPORTs get unreg_login'ed so we can
IOERR_SLI_ABORTED);
}
+/**
+ * lpfc_sli4_vport_delete_els_xri_aborted -Remove all ndlp references for vport
+ * @vport: pointer to lpfc vport data structure.
+ *
+ * This routine is invoked by the vport cleanup for deletions and the cleanup
+ * for an ndlp on removal.
+ **/
+void
+lpfc_sli4_vport_delete_els_xri_aborted(struct lpfc_vport *vport)
+{
+ struct lpfc_hba *phba = vport->phba;
+ struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
+ unsigned long iflag = 0;
+
+ spin_lock_irqsave(&phba->hbalock, iflag);
+ spin_lock(&phba->sli4_hba.abts_sgl_list_lock);
+ list_for_each_entry_safe(sglq_entry, sglq_next,
+ &phba->sli4_hba.lpfc_abts_els_sgl_list, list) {
+ if (sglq_entry->ndlp && sglq_entry->ndlp->vport == vport)
+ sglq_entry->ndlp = NULL;
+ }
+ spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
+ spin_unlock_irqrestore(&phba->hbalock, iflag);
+ return;
+}
+
/**
* lpfc_sli4_els_xri_aborted - Slow-path process of els xri abort
* @phba: pointer to lpfc hba data structure.
lpfc_ramp_down_queue_handler(phba);
if (work_port_events & WORKER_RAMP_UP_QUEUE)
lpfc_ramp_up_queue_handler(phba);
+ if (work_port_events & WORKER_DELAYED_DISC_TMO)
+ lpfc_delayed_disc_timeout_handler(vport);
}
lpfc_destroy_vport_work_array(phba, vports);
lpfc_port_link_failure(vport);
+ /* Stop delayed Nport discovery */
+ spin_lock_irq(shost->host_lock);
+ vport->fc_flag &= ~FC_DISC_DELAYED;
+ spin_unlock_irq(shost->host_lock);
+ del_timer_sync(&vport->delayed_disc_tmo);
}
int
spin_unlock_irq(shost->host_lock);
vport->unreg_vpi_cmpl = VPORT_OK;
mempool_free(pmb, phba->mbox_mem_pool);
- lpfc_cleanup_vports_rrqs(vport);
+ lpfc_cleanup_vports_rrqs(vport, NULL);
/*
* This shost reference might have been taken at the beginning of
* lpfc_vport_delete()
if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
return;
lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE);
+ if (vport->phba->sli_rev == LPFC_SLI_REV4)
+ lpfc_cleanup_vports_rrqs(vport, ndlp);
lpfc_nlp_put(ndlp);
return;
}
list_del_init(&ndlp->els_retry_evt.evt_listp);
list_del_init(&ndlp->dev_loss_evt.evt_listp);
-
+ lpfc_cleanup_vports_rrqs(vport, ndlp);
lpfc_unreg_rpi(vport, ndlp);
return 0;
{
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct lpfc_nodelist *ndlp;
+ unsigned long iflags;
- spin_lock_irq(shost->host_lock);
+ spin_lock_irqsave(shost->host_lock, iflags);
ndlp = __lpfc_findnode_did(vport, did);
- spin_unlock_irq(shost->host_lock);
+ spin_unlock_irqrestore(shost->host_lock, iflags);
return ndlp;
}
uint8_t bbCreditMsb;
uint8_t bbCreditlsb; /* FC Word 0, byte 3 */
+/*
+ * Word 1 Bit 31 in common service parameter is overloaded.
+ * Word 1 Bit 31 in FLOGI request is multiple NPort request
+ * Word 1 Bit 31 in FLOGI response is clean address bit
+ */
+#define clean_address_bit request_multiple_Nport /* Word 1, bit 31 */
#ifdef __BIG_ENDIAN_BITFIELD
uint16_t request_multiple_Nport:1; /* FC Word 1, bit 31 */
uint16_t randomOffset:1; /* FC Word 1, bit 30 */
#define IOERR_SLER_RRQ_RJT_ERR 0x4C
#define IOERR_SLER_RRQ_RETRY_ERR 0x4D
#define IOERR_SLER_ABTS_ERR 0x4E
-
+#define IOERR_ELXSEC_KEY_UNWRAP_ERROR 0xF0
+#define IOERR_ELXSEC_KEY_UNWRAP_COMPARE_ERROR 0xF1
+#define IOERR_ELXSEC_CRYPTO_ERROR 0xF2
+#define IOERR_ELXSEC_CRYPTO_COMPARE_ERROR 0xF3
#define IOERR_DRVR_MASK 0x100
#define IOERR_SLI_DOWN 0x101 /* ulpStatus - Driver defined */
#define IOERR_SLI_BRESET 0x102
#define LPFC_MBOX_OPCODE_QUERY_FW_CFG 0x3A
#define LPFC_MBOX_OPCODE_FUNCTION_RESET 0x3D
#define LPFC_MBOX_OPCODE_MQ_CREATE_EXT 0x5A
+#define LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS 0xB5
/* FCoE Opcodes */
#define LPFC_MBOX_OPCODE_FCOE_WQ_CREATE 0x01
#define lpfc_mbx_rq_ftr_rq_ifip_SHIFT 7
#define lpfc_mbx_rq_ftr_rq_ifip_MASK 0x00000001
#define lpfc_mbx_rq_ftr_rq_ifip_WORD word2
+#define lpfc_mbx_rq_ftr_rq_perfh_SHIFT 11
+#define lpfc_mbx_rq_ftr_rq_perfh_MASK 0x00000001
+#define lpfc_mbx_rq_ftr_rq_perfh_WORD word2
uint32_t word3;
#define lpfc_mbx_rq_ftr_rsp_iaab_SHIFT 0
#define lpfc_mbx_rq_ftr_rsp_iaab_MASK 0x00000001
#define lpfc_mbx_rq_ftr_rsp_ifip_SHIFT 7
#define lpfc_mbx_rq_ftr_rsp_ifip_MASK 0x00000001
#define lpfc_mbx_rq_ftr_rsp_ifip_WORD word3
+#define lpfc_mbx_rq_ftr_rsp_perfh_SHIFT 11
+#define lpfc_mbx_rq_ftr_rsp_perfh_MASK 0x00000001
+#define lpfc_mbx_rq_ftr_rsp_perfh_WORD word3
};
struct lpfc_mbx_supp_pages {
#define LPFC_SLI4_PARAMETERS 2
};
-struct lpfc_mbx_sli4_params {
+struct lpfc_mbx_pc_sli4_params {
uint32_t word1;
#define qs_SHIFT 0
#define qs_MASK 0x00000001
uint32_t rsvd_13_63[51];
};
+struct lpfc_sli4_parameters {
+ uint32_t word0;
+#define cfg_prot_type_SHIFT 0
+#define cfg_prot_type_MASK 0x000000FF
+#define cfg_prot_type_WORD word0
+ uint32_t word1;
+#define cfg_ft_SHIFT 0
+#define cfg_ft_MASK 0x00000001
+#define cfg_ft_WORD word1
+#define cfg_sli_rev_SHIFT 4
+#define cfg_sli_rev_MASK 0x0000000f
+#define cfg_sli_rev_WORD word1
+#define cfg_sli_family_SHIFT 8
+#define cfg_sli_family_MASK 0x0000000f
+#define cfg_sli_family_WORD word1
+#define cfg_if_type_SHIFT 12
+#define cfg_if_type_MASK 0x0000000f
+#define cfg_if_type_WORD word1
+#define cfg_sli_hint_1_SHIFT 16
+#define cfg_sli_hint_1_MASK 0x000000ff
+#define cfg_sli_hint_1_WORD word1
+#define cfg_sli_hint_2_SHIFT 24
+#define cfg_sli_hint_2_MASK 0x0000001f
+#define cfg_sli_hint_2_WORD word1
+ uint32_t word2;
+ uint32_t word3;
+ uint32_t word4;
+#define cfg_cqv_SHIFT 14
+#define cfg_cqv_MASK 0x00000003
+#define cfg_cqv_WORD word4
+ uint32_t word5;
+ uint32_t word6;
+#define cfg_mqv_SHIFT 14
+#define cfg_mqv_MASK 0x00000003
+#define cfg_mqv_WORD word6
+ uint32_t word7;
+ uint32_t word8;
+#define cfg_wqv_SHIFT 14
+#define cfg_wqv_MASK 0x00000003
+#define cfg_wqv_WORD word8
+ uint32_t word9;
+ uint32_t word10;
+#define cfg_rqv_SHIFT 14
+#define cfg_rqv_MASK 0x00000003
+#define cfg_rqv_WORD word10
+ uint32_t word11;
+#define cfg_rq_db_window_SHIFT 28
+#define cfg_rq_db_window_MASK 0x0000000f
+#define cfg_rq_db_window_WORD word11
+ uint32_t word12;
+#define cfg_fcoe_SHIFT 0
+#define cfg_fcoe_MASK 0x00000001
+#define cfg_fcoe_WORD word12
+#define cfg_phwq_SHIFT 15
+#define cfg_phwq_MASK 0x00000001
+#define cfg_phwq_WORD word12
+#define cfg_loopbk_scope_SHIFT 28
+#define cfg_loopbk_scope_MASK 0x0000000f
+#define cfg_loopbk_scope_WORD word12
+ uint32_t sge_supp_len;
+ uint32_t word14;
+#define cfg_sgl_page_cnt_SHIFT 0
+#define cfg_sgl_page_cnt_MASK 0x0000000f
+#define cfg_sgl_page_cnt_WORD word14
+#define cfg_sgl_page_size_SHIFT 8
+#define cfg_sgl_page_size_MASK 0x000000ff
+#define cfg_sgl_page_size_WORD word14
+#define cfg_sgl_pp_align_SHIFT 16
+#define cfg_sgl_pp_align_MASK 0x000000ff
+#define cfg_sgl_pp_align_WORD word14
+ uint32_t word15;
+ uint32_t word16;
+ uint32_t word17;
+ uint32_t word18;
+ uint32_t word19;
+};
+
+struct lpfc_mbx_get_sli4_parameters {
+ struct mbox_header header;
+ struct lpfc_sli4_parameters sli4_parameters;
+};
+
/* Mailbox Completion Queue Error Messages */
#define MB_CQE_STATUS_SUCCESS 0x0
#define MB_CQE_STATUS_INSUFFICIENT_PRIVILEGES 0x1
struct lpfc_mbx_post_hdr_tmpl hdr_tmpl;
struct lpfc_mbx_query_fw_cfg query_fw_cfg;
struct lpfc_mbx_supp_pages supp_pages;
- struct lpfc_mbx_sli4_params sli4_params;
+ struct lpfc_mbx_pc_sli4_params sli4_params;
+ struct lpfc_mbx_get_sli4_parameters get_sli4_parameters;
struct lpfc_mbx_nop nop;
} un;
};
#define wqe_wqes_SHIFT 15
#define wqe_wqes_MASK 0x00000001
#define wqe_wqes_WORD word10
+/* Note that this field overlaps above fields */
+#define wqe_wqid_SHIFT 1
+#define wqe_wqid_MASK 0x0000007f
+#define wqe_wqid_WORD word10
#define wqe_pri_SHIFT 16
#define wqe_pri_MASK 0x00000007
#define wqe_pri_WORD word10
uint32_t total_xfer_len;
uint32_t initial_xfer_len;
struct wqe_common wqe_com; /* words 6-11 */
- uint32_t rsvd_12_15[4]; /* word 12-15 */
+ uint32_t rsrvd12;
+ struct ulp_bde64 ph_bde; /* words 13-15 */
};
struct fcp_iread64_wqe {
uint32_t total_xfer_len; /* word 4 */
uint32_t rsrvd5; /* word 5 */
struct wqe_common wqe_com; /* words 6-11 */
- uint32_t rsvd_12_15[4]; /* word 12-15 */
+ uint32_t rsrvd12;
+ struct ulp_bde64 ph_bde; /* words 13-15 */
};
struct fcp_icmnd64_wqe {
|| ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G)
&& !(phba->lmt & LMT_16Gb))) {
/* Reset link speed to auto */
- lpfc_printf_log(phba, KERN_WARNING, LOG_LINK_EVENT,
+ lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
"1302 Invalid speed for this board: "
"Reset link speed to auto: x%x\n",
phba->cfg_link_speed);
lpfc_rrq_timeout(unsigned long ptr)
{
struct lpfc_hba *phba;
- uint32_t tmo_posted;
unsigned long iflag;
phba = (struct lpfc_hba *)ptr;
spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
- tmo_posted = phba->hba_flag & HBA_RRQ_ACTIVE;
- if (!tmo_posted)
- phba->hba_flag |= HBA_RRQ_ACTIVE;
+ phba->hba_flag |= HBA_RRQ_ACTIVE;
spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
- if (!tmo_posted)
- lpfc_worker_wake_up(phba);
+ lpfc_worker_wake_up(phba);
}
/**
/* Wait for any activity on ndlps to settle */
msleep(10);
}
+ lpfc_cleanup_vports_rrqs(vport, NULL);
}
/**
{
del_timer_sync(&vport->els_tmofunc);
del_timer_sync(&vport->fc_fdmitmo);
+ del_timer_sync(&vport->delayed_disc_tmo);
lpfc_can_disctmo(vport);
return;
}
del_timer_sync(&phba->fabric_block_timer);
del_timer_sync(&phba->eratt_poll);
del_timer_sync(&phba->hb_tmofunc);
+ if (phba->sli_rev == LPFC_SLI_REV4) {
+ del_timer_sync(&phba->rrq_tmr);
+ phba->hba_flag &= ~HBA_RRQ_ACTIVE;
+ }
phba->hb_outstanding = 0;
switch (phba->pci_dev_grp) {
init_timer(&vport->els_tmofunc);
vport->els_tmofunc.function = lpfc_els_timeout;
vport->els_tmofunc.data = (unsigned long)vport;
+
+ init_timer(&vport->delayed_disc_tmo);
+ vport->delayed_disc_tmo.function = lpfc_delayed_disc_tmo;
+ vport->delayed_disc_tmo.data = (unsigned long)vport;
+
error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
if (error)
goto out_put_shost;
goto out_free_bsmbx;
}
- /* Get the Supported Pages. It is always available. */
+ /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
lpfc_supported_pages(mboxq);
rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
- if (unlikely(rc)) {
- rc = -EIO;
- mempool_free(mboxq, phba->mbox_mem_pool);
- goto out_free_bsmbx;
- }
-
- mqe = &mboxq->u.mqe;
- memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
- LPFC_MAX_SUPPORTED_PAGES);
- for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
- switch (pn_page[i]) {
- case LPFC_SLI4_PARAMETERS:
- phba->sli4_hba.pc_sli4_params.supported = 1;
- break;
- default:
- break;
+ if (!rc) {
+ mqe = &mboxq->u.mqe;
+ memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
+ LPFC_MAX_SUPPORTED_PAGES);
+ for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
+ switch (pn_page[i]) {
+ case LPFC_SLI4_PARAMETERS:
+ phba->sli4_hba.pc_sli4_params.supported = 1;
+ break;
+ default:
+ break;
+ }
+ }
+ /* Read the port's SLI4 Parameters capabilities if supported. */
+ if (phba->sli4_hba.pc_sli4_params.supported)
+ rc = lpfc_pc_sli4_params_get(phba, mboxq);
+ if (rc) {
+ mempool_free(mboxq, phba->mbox_mem_pool);
+ rc = -EIO;
+ goto out_free_bsmbx;
}
}
-
- /* Read the port's SLI4 Parameters capabilities if supported. */
- if (phba->sli4_hba.pc_sli4_params.supported)
- rc = lpfc_pc_sli4_params_get(phba, mboxq);
+ /*
+ * Get sli4 parameters that override parameters from Port capabilities.
+ * If this call fails it is not a critical error so continue loading.
+ */
+ lpfc_get_sli4_parameters(phba, mboxq);
mempool_free(mboxq, phba->mbox_mem_pool);
- if (rc) {
- rc = -EIO;
- goto out_free_bsmbx;
- }
/* Create all the SLI4 queues */
rc = lpfc_sli4_queue_create(phba);
if (rc)
mqe = &mboxq->u.mqe;
/* Read the port's SLI4 Parameters port capabilities */
- lpfc_sli4_params(mboxq);
+ lpfc_pc_sli4_params(mboxq);
if (!phba->sli4_hba.intr_enable)
rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
else {
return rc;
}
+/**
+ * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
+ * @phba: Pointer to HBA context object.
+ * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
+ *
+ * This function is called in the SLI4 code path to read the port's
+ * sli4 capabilities.
+ *
+ * This function may be be called from any context that can block-wait
+ * for the completion. The expectation is that this routine is called
+ * typically from probe_one or from the online routine.
+ **/
+int
+lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
+{
+ int rc;
+ struct lpfc_mqe *mqe = &mboxq->u.mqe;
+ struct lpfc_pc_sli4_params *sli4_params;
+ int length;
+ struct lpfc_sli4_parameters *mbx_sli4_parameters;
+
+ /* Read the port's SLI4 Config Parameters */
+ length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
+ sizeof(struct lpfc_sli4_cfg_mhdr));
+ lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
+ LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
+ length, LPFC_SLI4_MBX_EMBED);
+ if (!phba->sli4_hba.intr_enable)
+ rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
+ else
+ rc = lpfc_sli_issue_mbox_wait(phba, mboxq,
+ lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG));
+ if (unlikely(rc))
+ return rc;
+ sli4_params = &phba->sli4_hba.pc_sli4_params;
+ mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
+ sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
+ sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
+ sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
+ sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
+ mbx_sli4_parameters);
+ sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
+ mbx_sli4_parameters);
+ if (bf_get(cfg_phwq, mbx_sli4_parameters))
+ phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
+ else
+ phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
+ sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
+ sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters);
+ sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
+ sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
+ sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
+ sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
+ sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
+ mbx_sli4_parameters);
+ sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
+ mbx_sli4_parameters);
+ return 0;
+}
+
/**
* lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
* @pdev: pointer to PCI device
if (phba->sli_rev == LPFC_SLI_REV3 && phba->vpd.sli3Feat.cerbm) {
if (phba->cfg_enable_bg)
mb->un.varCfgPort.cbg = 1; /* configure BlockGuard */
- mb->un.varCfgPort.cdss = 1; /* Configure Security */
+ if (phba->cfg_enable_dss)
+ mb->un.varCfgPort.cdss = 1; /* Configure Security */
mb->un.varCfgPort.cerbm = 1; /* Request HBQs */
mb->un.varCfgPort.ccrp = 1; /* Command Ring Polling */
mb->un.varCfgPort.max_hbq = lpfc_sli_hbq_count();
* @mbox: pointer to lpfc mbox command.
* @subsystem: The sli4 config sub mailbox subsystem.
* @opcode: The sli4 config sub mailbox command opcode.
- * @length: Length of the sli4 config mailbox command.
+ * @length: Length of the sli4 config mailbox command (including sub-header).
*
* This routine sets up the header fields of SLI4 specific mailbox command
* for sending IOCTL command.
if (emb) {
/* Set up main header fields */
bf_set(lpfc_mbox_hdr_emb, &sli4_config->header.cfg_mhdr, 1);
- sli4_config->header.cfg_mhdr.payload_length =
- LPFC_MBX_CMD_HDR_LENGTH + length;
+ sli4_config->header.cfg_mhdr.payload_length = length;
/* Set up sub-header fields following main header */
bf_set(lpfc_mbox_hdr_opcode,
&sli4_config->header.cfg_shdr.request, opcode);
bf_set(lpfc_mbox_hdr_subsystem,
&sli4_config->header.cfg_shdr.request, subsystem);
- sli4_config->header.cfg_shdr.request.request_length = length;
+ sli4_config->header.cfg_shdr.request.request_length =
+ length - LPFC_MBX_CMD_HDR_LENGTH;
return length;
}
/* Set up host requested features. */
bf_set(lpfc_mbx_rq_ftr_rq_fcpi, &mboxq->u.mqe.un.req_ftrs, 1);
+ bf_set(lpfc_mbx_rq_ftr_rq_perfh, &mboxq->u.mqe.un.req_ftrs, 1);
/* Enable DIF (block guard) only if configured to do so. */
if (phba->cfg_enable_bg)
}
/**
- * lpfc_sli4_params - Initialize the PORT_CAPABILITIES SLI4 Params
- * mailbox command.
+ * lpfc_pc_sli4_params - Initialize the PORT_CAPABILITIES SLI4 Params mbox cmd.
* @mbox: pointer to lpfc mbox command to initialize.
*
* The PORT_CAPABILITIES SLI4 parameters mailbox command is issued to
* retrieve the particular SLI4 features supported by the port.
**/
void
-lpfc_sli4_params(struct lpfcMboxq *mbox)
+lpfc_pc_sli4_params(struct lpfcMboxq *mbox)
{
- struct lpfc_mbx_sli4_params *sli4_params;
+ struct lpfc_mbx_pc_sli4_params *sli4_params;
memset(mbox, 0, sizeof(*mbox));
sli4_params = &mbox->u.mqe.un.sli4_params;
ndlp->nlp_maxframe =
((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb;
- /* no need to reg_login if we are already in one of these states */
+ /*
+ * Need to unreg_login if we are already in one of these states and
+ * change to NPR state. This will block the port until after the ACC
+ * completes and the reg_login is issued and completed.
+ */
switch (ndlp->nlp_state) {
case NLP_STE_NPR_NODE:
if (!(ndlp->nlp_flag & NLP_NPR_ADISC))
case NLP_STE_PRLI_ISSUE:
case NLP_STE_UNMAPPED_NODE:
case NLP_STE_MAPPED_NODE:
- lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, ndlp, NULL);
- return 1;
+ lpfc_unreg_rpi(vport, ndlp);
+ ndlp->nlp_prev_state = ndlp->nlp_state;
+ lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
}
if ((vport->fc_flag & FC_PT2PT) &&
return bcnt;
}
+/**
+ * lpfc_sli4_vport_delete_fcp_xri_aborted -Remove all ndlp references for vport
+ * @vport: pointer to lpfc vport data structure.
+ *
+ * This routine is invoked by the vport cleanup for deletions and the cleanup
+ * for an ndlp on removal.
+ **/
+void
+lpfc_sli4_vport_delete_fcp_xri_aborted(struct lpfc_vport *vport)
+{
+ struct lpfc_hba *phba = vport->phba;
+ struct lpfc_scsi_buf *psb, *next_psb;
+ unsigned long iflag = 0;
+
+ spin_lock_irqsave(&phba->hbalock, iflag);
+ spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock);
+ list_for_each_entry_safe(psb, next_psb,
+ &phba->sli4_hba.lpfc_abts_scsi_buf_list, list) {
+ if (psb->rdata && psb->rdata->pnode
+ && psb->rdata->pnode->vport == vport)
+ psb->rdata = NULL;
+ }
+ spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock);
+ spin_unlock_irqrestore(&phba->hbalock, iflag);
+}
+
/**
* lpfc_sli4_fcp_xri_aborted - Fast-path process of fcp xri abort
* @phba: pointer to lpfc hba data structure.
psb->status = IOSTAT_SUCCESS;
spin_unlock(
&phba->sli4_hba.abts_scsi_buf_list_lock);
- ndlp = psb->rdata->pnode;
+ if (psb->rdata && psb->rdata->pnode)
+ ndlp = psb->rdata->pnode;
+ else
+ ndlp = NULL;
+
rrq_empty = list_empty(&phba->active_rrq_list);
spin_unlock_irqrestore(&phba->hbalock, iflag);
if (ndlp)
static struct lpfc_scsi_buf*
lpfc_get_scsi_buf_s4(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
{
- struct lpfc_scsi_buf *lpfc_cmd = NULL;
- struct lpfc_scsi_buf *start_lpfc_cmd = NULL;
- struct list_head *scsi_buf_list = &phba->lpfc_scsi_buf_list;
+ struct lpfc_scsi_buf *lpfc_cmd ;
unsigned long iflag = 0;
int found = 0;
spin_lock_irqsave(&phba->scsi_buf_list_lock, iflag);
- list_remove_head(scsi_buf_list, lpfc_cmd, struct lpfc_scsi_buf, list);
- spin_unlock_irqrestore(&phba->scsi_buf_list_lock, iflag);
- while (!found && lpfc_cmd) {
+ list_for_each_entry(lpfc_cmd, &phba->lpfc_scsi_buf_list,
+ list) {
if (lpfc_test_rrq_active(phba, ndlp,
- lpfc_cmd->cur_iocbq.sli4_xritag)) {
- lpfc_release_scsi_buf_s4(phba, lpfc_cmd);
- spin_lock_irqsave(&phba->scsi_buf_list_lock, iflag);
- list_remove_head(scsi_buf_list, lpfc_cmd,
- struct lpfc_scsi_buf, list);
- spin_unlock_irqrestore(&phba->scsi_buf_list_lock,
- iflag);
- if (lpfc_cmd == start_lpfc_cmd) {
- lpfc_cmd = NULL;
- break;
- } else
- continue;
- }
+ lpfc_cmd->cur_iocbq.sli4_xritag))
+ continue;
+ list_del(&lpfc_cmd->list);
found = 1;
lpfc_cmd->seg_cnt = 0;
lpfc_cmd->nonsg_phys = 0;
lpfc_cmd->prot_seg_cnt = 0;
+ break;
}
- return lpfc_cmd;
+ spin_unlock_irqrestore(&phba->scsi_buf_list_lock,
+ iflag);
+ if (!found)
+ return NULL;
+ else
+ return lpfc_cmd;
}
/**
* lpfc_get_scsi_buf - Get a scsi buffer from lpfc_scsi_buf_list of the HBA
struct scatterlist *sgel = NULL;
struct fcp_cmnd *fcp_cmnd = lpfc_cmd->fcp_cmnd;
struct sli4_sge *sgl = (struct sli4_sge *)lpfc_cmd->fcp_bpl;
+ struct sli4_sge *first_data_sgl;
IOCB_t *iocb_cmd = &lpfc_cmd->cur_iocbq.iocb;
dma_addr_t physaddr;
uint32_t num_bde = 0;
uint32_t dma_len;
uint32_t dma_offset = 0;
int nseg;
+ struct ulp_bde64 *bde;
/*
* There are three possibilities here - use scatter-gather segment, use
bf_set(lpfc_sli4_sge_last, sgl, 0);
sgl->word2 = cpu_to_le32(sgl->word2);
sgl += 1;
-
+ first_data_sgl = sgl;
lpfc_cmd->seg_cnt = nseg;
if (lpfc_cmd->seg_cnt > phba->cfg_sg_seg_cnt) {
lpfc_printf_log(phba, KERN_ERR, LOG_BG, "9074 BLKGRD:"
dma_offset += dma_len;
sgl++;
}
+ /* setup the performance hint (first data BDE) if enabled */
+ if (phba->sli3_options & LPFC_SLI4_PERFH_ENABLED) {
+ bde = (struct ulp_bde64 *)
+ &(iocb_cmd->unsli3.sli3Words[5]);
+ bde->addrLow = first_data_sgl->addr_lo;
+ bde->addrHigh = first_data_sgl->addr_hi;
+ bde->tus.f.bdeSize =
+ le32_to_cpu(first_data_sgl->sge_len);
+ bde->tus.f.bdeFlags = BUFF_TYPE_BDE_64;
+ bde->tus.w = cpu_to_le32(bde->tus.w);
+ }
} else {
sgl += 1;
/* clear the last flag in the fcp_rsp map entry */
lpfc_worker_wake_up(phba);
break;
case IOSTAT_LOCAL_REJECT:
+ case IOSTAT_REMOTE_STOP:
+ if (lpfc_cmd->result == IOERR_ELXSEC_KEY_UNWRAP_ERROR ||
+ lpfc_cmd->result ==
+ IOERR_ELXSEC_KEY_UNWRAP_COMPARE_ERROR ||
+ lpfc_cmd->result == IOERR_ELXSEC_CRYPTO_ERROR ||
+ lpfc_cmd->result ==
+ IOERR_ELXSEC_CRYPTO_COMPARE_ERROR) {
+ cmd->result = ScsiResult(DID_NO_CONNECT, 0);
+ break;
+ }
if (lpfc_cmd->result == IOERR_INVALID_RPI ||
lpfc_cmd->result == IOERR_NO_RESOURCES ||
lpfc_cmd->result == IOERR_ABORT_REQUESTED ||
cmd->result = ScsiResult(DID_REQUEUE, 0);
break;
}
-
if ((lpfc_cmd->result == IOERR_RX_DMA_FAILED ||
lpfc_cmd->result == IOERR_TX_DMA_FAILED) &&
pIocbOut->iocb.unsli3.sli3_bg.bgstat) {
"on unprotected cmd\n");
}
}
-
+ if ((lpfc_cmd->status == IOSTAT_REMOTE_STOP)
+ && (phba->sli_rev == LPFC_SLI_REV4)
+ && (pnode && NLP_CHK_NODE_ACT(pnode))) {
+ /* This IO was aborted by the target, we don't
+ * know the rxid and because we did not send the
+ * ABTS we cannot generate and RRQ.
+ */
+ lpfc_set_rrq_active(phba, pnode,
+ lpfc_cmd->cur_iocbq.sli4_xritag,
+ 0, 0);
+ }
/* else: fall through */
default:
cmd->result = ScsiResult(DID_ERROR, 0);
|| (pnode->nlp_state != NLP_STE_MAPPED_NODE))
cmd->result = ScsiResult(DID_TRANSPORT_DISRUPTED,
SAM_STAT_BUSY);
- } else {
+ } else
cmd->result = ScsiResult(DID_OK, 0);
- }
if (cmd->result || lpfc_cmd->fcp_rsp->rspSnsLen) {
uint32_t *lp = (uint32_t *)cmd->sense_buffer;
* transport is still transitioning.
*/
if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) {
- cmnd->result = ScsiResult(DID_TRANSPORT_DISRUPTED, 0);
+ cmnd->result = ScsiResult(DID_IMM_RETRY, 0);
goto out_fail_command;
}
if (atomic_read(&ndlp->cmd_pending) >= ndlp->cmd_qdepth)
- goto out_host_busy;
+ goto out_tgt_busy;
lpfc_cmd = lpfc_get_scsi_buf(phba, ndlp);
if (lpfc_cmd == NULL) {
out_host_busy:
return SCSI_MLQUEUE_HOST_BUSY;
+ out_tgt_busy:
+ return SCSI_MLQUEUE_TARGET_BUSY;
+
out_fail_command:
done(cmnd);
return 0;
/* set consumption flag every once in a while */
if (!((q->host_index + 1) % LPFC_RELEASE_NOTIFICATION_INTERVAL))
bf_set(wqe_wqec, &wqe->generic.wqe_com, 1);
-
+ if (q->phba->sli3_options & LPFC_SLI4_PHWQ_ENABLED)
+ bf_set(wqe_wqid, &wqe->generic.wqe_com, q->queue_id);
lpfc_sli_pcimem_bcopy(wqe, temp_wqe, q->entry_size);
/* Update the host index before invoking device */
uint16_t adj_xri;
struct lpfc_node_rrq *rrq;
int empty;
+ uint32_t did = 0;
+
+
+ if (!ndlp)
+ return -EINVAL;
+
+ if (!phba->cfg_enable_rrq)
+ return -EINVAL;
+
+ if (phba->pport->load_flag & FC_UNLOADING) {
+ phba->hba_flag &= ~HBA_RRQ_ACTIVE;
+ goto out;
+ }
+ did = ndlp->nlp_DID;
/*
* set the active bit even if there is no mem available.
*/
adj_xri = xritag - phba->sli4_hba.max_cfg_param.xri_base;
- if (!ndlp)
- return -EINVAL;
+
+ if (NLP_CHK_FREE_REQ(ndlp))
+ goto out;
+
+ if (ndlp->vport && (ndlp->vport->load_flag & FC_UNLOADING))
+ goto out;
+
if (test_and_set_bit(adj_xri, ndlp->active_rrqs.xri_bitmap))
- return -EINVAL;
+ goto out;
+
rrq = mempool_alloc(phba->rrq_pool, GFP_KERNEL);
if (rrq) {
rrq->send_rrq = send_rrq;
rrq->vport = ndlp->vport;
rrq->rxid = rxid;
empty = list_empty(&phba->active_rrq_list);
- if (phba->cfg_enable_rrq && send_rrq)
- /*
- * We need the xri before we can add this to the
- * phba active rrq list.
- */
- rrq->send_rrq = send_rrq;
- else
- rrq->send_rrq = 0;
+ rrq->send_rrq = send_rrq;
list_add_tail(&rrq->list, &phba->active_rrq_list);
if (!(phba->hba_flag & HBA_RRQ_ACTIVE)) {
phba->hba_flag |= HBA_RRQ_ACTIVE;
}
return 0;
}
- return -ENOMEM;
+out:
+ lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
+ "2921 Can't set rrq active xri:0x%x rxid:0x%x"
+ " DID:0x%x Send:%d\n",
+ xritag, rxid, did, send_rrq);
+ return -EINVAL;
}
/**
- * __lpfc_clr_rrq_active - Clears RRQ active bit in xri_bitmap.
+ * lpfc_clr_rrq_active - Clears RRQ active bit in xri_bitmap.
* @phba: Pointer to HBA context object.
* @xritag: xri used in this exchange.
* @rrq: The RRQ to be cleared.
*
- * This function is called with hbalock held. This function
**/
-static void
-__lpfc_clr_rrq_active(struct lpfc_hba *phba,
- uint16_t xritag,
- struct lpfc_node_rrq *rrq)
+void
+lpfc_clr_rrq_active(struct lpfc_hba *phba,
+ uint16_t xritag,
+ struct lpfc_node_rrq *rrq)
{
uint16_t adj_xri;
- struct lpfc_nodelist *ndlp;
+ struct lpfc_nodelist *ndlp = NULL;
- ndlp = lpfc_findnode_did(rrq->vport, rrq->nlp_DID);
+ if ((rrq->vport) && NLP_CHK_NODE_ACT(rrq->ndlp))
+ ndlp = lpfc_findnode_did(rrq->vport, rrq->nlp_DID);
/* The target DID could have been swapped (cable swap)
* we should use the ndlp from the findnode if it is
* available.
*/
- if (!ndlp)
+ if ((!ndlp) && rrq->ndlp)
ndlp = rrq->ndlp;
+ if (!ndlp)
+ goto out;
+
adj_xri = xritag - phba->sli4_hba.max_cfg_param.xri_base;
if (test_and_clear_bit(adj_xri, ndlp->active_rrqs.xri_bitmap)) {
rrq->send_rrq = 0;
rrq->xritag = 0;
rrq->rrq_stop_time = 0;
}
+out:
mempool_free(rrq, phba->rrq_pool);
}
struct lpfc_node_rrq *nextrrq;
unsigned long next_time;
unsigned long iflags;
+ LIST_HEAD(send_rrq);
spin_lock_irqsave(&phba->hbalock, iflags);
phba->hba_flag &= ~HBA_RRQ_ACTIVE;
next_time = jiffies + HZ * (phba->fc_ratov + 1);
list_for_each_entry_safe(rrq, nextrrq,
- &phba->active_rrq_list, list) {
- if (time_after(jiffies, rrq->rrq_stop_time)) {
- list_del(&rrq->list);
- if (!rrq->send_rrq)
- /* this call will free the rrq */
- __lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
- else {
- /* if we send the rrq then the completion handler
- * will clear the bit in the xribitmap.
- */
- spin_unlock_irqrestore(&phba->hbalock, iflags);
- if (lpfc_send_rrq(phba, rrq)) {
- lpfc_clr_rrq_active(phba, rrq->xritag,
- rrq);
- }
- spin_lock_irqsave(&phba->hbalock, iflags);
- }
- } else if (time_before(rrq->rrq_stop_time, next_time))
+ &phba->active_rrq_list, list) {
+ if (time_after(jiffies, rrq->rrq_stop_time))
+ list_move(&rrq->list, &send_rrq);
+ else if (time_before(rrq->rrq_stop_time, next_time))
next_time = rrq->rrq_stop_time;
}
spin_unlock_irqrestore(&phba->hbalock, iflags);
if (!list_empty(&phba->active_rrq_list))
mod_timer(&phba->rrq_tmr, next_time);
+ list_for_each_entry_safe(rrq, nextrrq, &send_rrq, list) {
+ list_del(&rrq->list);
+ if (!rrq->send_rrq)
+ /* this call will free the rrq */
+ lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
+ else if (lpfc_send_rrq(phba, rrq)) {
+ /* if we send the rrq then the completion handler
+ * will clear the bit in the xribitmap.
+ */
+ lpfc_clr_rrq_active(phba, rrq->xritag,
+ rrq);
+ }
+ }
}
/**
/**
* lpfc_cleanup_vports_rrqs - Remove and clear the active RRQ for this vport.
* @vport: Pointer to vport context object.
- *
- * Remove all active RRQs for this vport from the phba->active_rrq_list and
- * clear the rrq.
+ * @ndlp: Pointer to the lpfc_node_list structure.
+ * If ndlp is NULL Remove all active RRQs for this vport from the
+ * phba->active_rrq_list and clear the rrq.
+ * If ndlp is not NULL then only remove rrqs for this vport & this ndlp.
**/
void
-lpfc_cleanup_vports_rrqs(struct lpfc_vport *vport)
+lpfc_cleanup_vports_rrqs(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
{
struct lpfc_hba *phba = vport->phba;
struct lpfc_node_rrq *rrq;
struct lpfc_node_rrq *nextrrq;
unsigned long iflags;
+ LIST_HEAD(rrq_list);
if (phba->sli_rev != LPFC_SLI_REV4)
return;
- spin_lock_irqsave(&phba->hbalock, iflags);
- list_for_each_entry_safe(rrq, nextrrq, &phba->active_rrq_list, list) {
- if (rrq->vport == vport) {
- list_del(&rrq->list);
- __lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
- }
+ if (!ndlp) {
+ lpfc_sli4_vport_delete_els_xri_aborted(vport);
+ lpfc_sli4_vport_delete_fcp_xri_aborted(vport);
}
+ spin_lock_irqsave(&phba->hbalock, iflags);
+ list_for_each_entry_safe(rrq, nextrrq, &phba->active_rrq_list, list)
+ if ((rrq->vport == vport) && (!ndlp || rrq->ndlp == ndlp))
+ list_move(&rrq->list, &rrq_list);
spin_unlock_irqrestore(&phba->hbalock, iflags);
+
+ list_for_each_entry_safe(rrq, nextrrq, &rrq_list, list) {
+ list_del(&rrq->list);
+ lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
+ }
}
/**
struct lpfc_node_rrq *nextrrq;
unsigned long next_time;
unsigned long iflags;
+ LIST_HEAD(rrq_list);
if (phba->sli_rev != LPFC_SLI_REV4)
return;
spin_lock_irqsave(&phba->hbalock, iflags);
phba->hba_flag &= ~HBA_RRQ_ACTIVE;
next_time = jiffies + HZ * (phba->fc_ratov * 2);
- list_for_each_entry_safe(rrq, nextrrq, &phba->active_rrq_list, list) {
+ list_splice_init(&phba->active_rrq_list, &rrq_list);
+ spin_unlock_irqrestore(&phba->hbalock, iflags);
+
+ list_for_each_entry_safe(rrq, nextrrq, &rrq_list, list) {
list_del(&rrq->list);
- __lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
+ lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
}
- spin_unlock_irqrestore(&phba->hbalock, iflags);
if (!list_empty(&phba->active_rrq_list))
mod_timer(&phba->rrq_tmr, next_time);
}
/**
- * __lpfc_test_rrq_active - Test RRQ bit in xri_bitmap.
+ * lpfc_test_rrq_active - Test RRQ bit in xri_bitmap.
* @phba: Pointer to HBA context object.
* @ndlp: Targets nodelist pointer for this exchange.
* @xritag the xri in the bitmap to test.
* returns 0 = rrq not active for this xri
* 1 = rrq is valid for this xri.
**/
-static int
-__lpfc_test_rrq_active(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
+int
+lpfc_test_rrq_active(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
uint16_t xritag)
{
uint16_t adj_xri;
return ret;
}
-/**
- * lpfc_clr_rrq_active - Clears RRQ active bit in xri_bitmap.
- * @phba: Pointer to HBA context object.
- * @xritag: xri used in this exchange.
- * @rrq: The RRQ to be cleared.
- *
- * This function is takes the hbalock.
- **/
-void
-lpfc_clr_rrq_active(struct lpfc_hba *phba,
- uint16_t xritag,
- struct lpfc_node_rrq *rrq)
-{
- unsigned long iflags;
-
- spin_lock_irqsave(&phba->hbalock, iflags);
- __lpfc_clr_rrq_active(phba, xritag, rrq);
- spin_unlock_irqrestore(&phba->hbalock, iflags);
- return;
-}
-
-
-
-/**
- * lpfc_test_rrq_active - Test RRQ bit in xri_bitmap.
- * @phba: Pointer to HBA context object.
- * @ndlp: Targets nodelist pointer for this exchange.
- * @xritag the xri in the bitmap to test.
- *
- * This function takes the hbalock.
- * returns 0 = rrq not active for this xri
- * 1 = rrq is valid for this xri.
- **/
-int
-lpfc_test_rrq_active(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
- uint16_t xritag)
-{
- int ret;
- unsigned long iflags;
-
- spin_lock_irqsave(&phba->hbalock, iflags);
- ret = __lpfc_test_rrq_active(phba, ndlp, xritag);
- spin_unlock_irqrestore(&phba->hbalock, iflags);
- return ret;
-}
-
/**
* __lpfc_sli_get_sglq - Allocates an iocb object from sgl pool
* @phba: Pointer to HBA context object.
return NULL;
adj_xri = sglq->sli4_xritag -
phba->sli4_hba.max_cfg_param.xri_base;
- if (__lpfc_test_rrq_active(phba, ndlp, sglq->sli4_xritag)) {
+ if (lpfc_test_rrq_active(phba, ndlp, sglq->sli4_xritag)) {
/* This xri has an rrq outstanding for this DID.
* put it back in the list and get another xri.
*/
} else {
sglq->state = SGL_FREED;
sglq->ndlp = NULL;
- list_add(&sglq->list, &phba->sli4_hba.lpfc_sgl_list);
+ list_add_tail(&sglq->list,
+ &phba->sli4_hba.lpfc_sgl_list);
/* Check if TXQ queue needs to be serviced */
if (pring->txq_cnt)
"0378 No support for fcpi mode.\n");
ftr_rsp++;
}
-
+ if (bf_get(lpfc_mbx_rq_ftr_rsp_perfh, &mqe->un.req_ftrs))
+ phba->sli3_options |= LPFC_SLI4_PERFH_ENABLED;
+ else
+ phba->sli3_options &= ~LPFC_SLI4_PERFH_ENABLED;
/*
* If the port cannot support the host's requested features
* then turn off the global config parameters to disable the
spin_lock_irq(&phba->hbalock);
phba->link_state = LPFC_LINK_DOWN;
spin_unlock_irq(&phba->hbalock);
- rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
+ if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK)
+ rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
out_unset_queue:
/* Unset all the queues set up in this routine when error out */
if (rc)
cq->type = type;
cq->subtype = subtype;
cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
+ cq->assoc_qid = eq->queue_id;
cq->host_index = 0;
cq->hba_index = 0;
goto out;
}
mq->type = LPFC_MQ;
+ mq->assoc_qid = cq->queue_id;
mq->subtype = subtype;
mq->host_index = 0;
mq->hba_index = 0;
goto out;
}
wq->type = LPFC_WQ;
+ wq->assoc_qid = cq->queue_id;
wq->subtype = subtype;
wq->host_index = 0;
wq->hba_index = 0;
goto out;
}
hrq->type = LPFC_HRQ;
+ hrq->assoc_qid = cq->queue_id;
hrq->subtype = subtype;
hrq->host_index = 0;
hrq->hba_index = 0;
goto out;
}
drq->type = LPFC_DRQ;
+ drq->assoc_qid = cq->queue_id;
drq->subtype = subtype;
drq->host_index = 0;
drq->hba_index = 0;
if (!mbox)
return -ENOMEM;
length = (sizeof(struct lpfc_mbx_rq_destroy) -
- sizeof(struct mbox_header));
+ sizeof(struct lpfc_sli4_cfg_mhdr));
lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
LPFC_MBOX_OPCODE_FCOE_RQ_DESTROY,
length, LPFC_SLI4_MBX_EMBED);
lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES,
sizeof(struct lpfc_mbx_post_sgl_pages) -
- sizeof(struct mbox_header), LPFC_SLI4_MBX_EMBED);
+ sizeof(struct lpfc_sli4_cfg_mhdr), LPFC_SLI4_MBX_EMBED);
post_sgl_pages = (struct lpfc_mbx_post_sgl_pages *)
&mbox->u.mqe.un.post_sgl_pages;
lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
LPFC_MBOX_OPCODE_FCOE_POST_HDR_TEMPLATE,
sizeof(struct lpfc_mbx_post_hdr_tmpl) -
- sizeof(struct mbox_header), LPFC_SLI4_MBX_EMBED);
+ sizeof(struct lpfc_sli4_cfg_mhdr),
+ LPFC_SLI4_MBX_EMBED);
bf_set(lpfc_mbx_post_hdr_tmpl_page_cnt,
hdr_tmpl, rpi_page->page_count);
bf_set(lpfc_mbx_post_hdr_tmpl_rpi_offset, hdr_tmpl,
uint32_t entry_count; /* Number of entries to support on the queue */
uint32_t entry_size; /* Size of each queue entry. */
uint32_t queue_id; /* Queue ID assigned by the hardware */
+ uint32_t assoc_qid; /* Queue ID associated with, for CQ/WQ/MQ */
struct list_head page_list;
uint32_t page_count; /* Number of pages allocated for this queue */
-
uint32_t host_index; /* The host's index for putting or getting */
uint32_t hba_index; /* The last known hba index for get or put */
union sli4_qe qe[1]; /* array to index entries (must be last) */
uint32_t hdr_pp_align;
uint32_t sgl_pages_max;
uint32_t sgl_pp_align;
+ uint8_t cqv;
+ uint8_t mqv;
+ uint8_t wqv;
+ uint8_t rqv;
};
/* SLI4 HBA data structure entries */
struct sli4_wcqe_xri_aborted *);
void lpfc_sli4_els_xri_aborted(struct lpfc_hba *,
struct sli4_wcqe_xri_aborted *);
+void lpfc_sli4_vport_delete_els_xri_aborted(struct lpfc_vport *);
+void lpfc_sli4_vport_delete_fcp_xri_aborted(struct lpfc_vport *);
int lpfc_sli4_brdreset(struct lpfc_hba *);
int lpfc_sli4_add_fcf_record(struct lpfc_hba *, struct fcf_record *);
void lpfc_sli_remove_dflt_fcf(struct lpfc_hba *);
/*******************************************************************
* This file is part of the Emulex Linux Device Driver for *
* Fibre Channel Host Bus Adapters. *
- * Copyright (C) 2004-2010 Emulex. All rights reserved. *
+ * Copyright (C) 2004-2011 Emulex. All rights reserved. *
* EMULEX and SLI are trademarks of Emulex. *
* www.emulex.com *
* *
* included with this package. *
*******************************************************************/
-#define LPFC_DRIVER_VERSION "8.3.20"
+#define LPFC_DRIVER_VERSION "8.3.21"
#define LPFC_DRIVER_NAME "lpfc"
#define LPFC_SP_DRIVER_HANDLER_NAME "lpfc:sp"
#define LPFC_FP_DRIVER_HANDLER_NAME "lpfc:fp"
struct lpfc_hba *phba = vport->phba;
struct lpfc_nodelist *ndlp = NULL, *next_ndlp = NULL;
long timeout;
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
ndlp = lpfc_findnode_did(vport, Fabric_DID);
if (ndlp && NLP_CHK_NODE_ACT(ndlp)
* scsi_host_put() to release the vport.
*/
lpfc_mbx_unreg_vpi(vport);
+ spin_lock_irq(shost->host_lock);
+ vport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
+ spin_unlock_irq(shost->host_lock);
lpfc_vport_set_state(vport, FC_VPORT_DISABLED);
lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT,
/*
* MegaRAID SAS Driver meta data
*/
-#define MEGASAS_VERSION "00.00.05.29-rc1"
-#define MEGASAS_RELDATE "Dec. 7, 2010"
-#define MEGASAS_EXT_VERSION "Tue. Dec. 7 17:00:00 PDT 2010"
+#define MEGASAS_VERSION "00.00.05.34-rc1"
+#define MEGASAS_RELDATE "Feb. 24, 2011"
+#define MEGASAS_EXT_VERSION "Thu. Feb. 24 17:00:00 PDT 2011"
/*
* Device IDs
MEGASAS_MAX_DEV_PER_CHANNEL)
#define MEGASAS_MAX_SECTORS (2*1024)
+#define MEGASAS_MAX_SECTORS_IEEE (2*128)
#define MEGASAS_DBG_LVL 1
#define MEGASAS_FW_BUSY 1
int max_index;
};
+#define msi_control_reg(base) (base + PCI_MSI_FLAGS)
+#define PCI_MSIX_FLAGS_ENABLE (1 << 15)
+
#endif /*LSI_MEGARAID_SAS_H */
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* FILE: megaraid_sas_base.c
- * Version : v00.00.05.29-rc1
+ * Version : v00.00.05.34-rc1
*
* Authors: LSI Corporation
* Sreenivas Bagalkote
* Sumant Patro
* Bo Yang
+ * Adam Radford <linuxraid@lsi.com>
*
* Send feedback to: <megaraidlinux@lsi.com>
*
void
megasas_complete_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd,
u8 alt_status);
-
+static u32
+megasas_read_fw_status_reg_gen2(struct megasas_register_set __iomem *regs);
+static int
+megasas_adp_reset_gen2(struct megasas_instance *instance,
+ struct megasas_register_set __iomem *reg_set);
static irqreturn_t megasas_isr(int irq, void *devp);
static u32
megasas_init_adapter_mfi(struct megasas_instance *instance);
megasas_clear_intr_skinny(struct megasas_register_set __iomem *regs)
{
u32 status;
+ u32 mfiStatus = 0;
+
/*
* Check if it is our interrupt
*/
return 0;
}
+ /*
+ * Check if it is our interrupt
+ */
+ if ((megasas_read_fw_status_reg_gen2(regs) & MFI_STATE_MASK) ==
+ MFI_STATE_FAULT) {
+ mfiStatus = MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE;
+ } else
+ mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE;
+
/*
* Clear the interrupt by writing back the same value
*/
*/
readl(®s->outbound_intr_status);
- return 1;
+ return mfiStatus;
}
/**
spin_unlock_irqrestore(&instance->hba_lock, flags);
}
-/**
- * megasas_adp_reset_skinny - For controller reset
- * @regs: MFI register set
- */
-static int
-megasas_adp_reset_skinny(struct megasas_instance *instance,
- struct megasas_register_set __iomem *regs)
-{
- return 0;
-}
-
/**
* megasas_check_reset_skinny - For controller reset check
* @regs: MFI register set
.disable_intr = megasas_disable_intr_skinny,
.clear_intr = megasas_clear_intr_skinny,
.read_fw_status_reg = megasas_read_fw_status_reg_skinny,
- .adp_reset = megasas_adp_reset_skinny,
+ .adp_reset = megasas_adp_reset_gen2,
.check_reset = megasas_check_reset_skinny,
.service_isr = megasas_isr,
.tasklet = megasas_complete_cmd_dpc,
{
u32 retry = 0 ;
u32 HostDiag;
+ u32 *seq_offset = ®_set->seq_offset;
+ u32 *hostdiag_offset = ®_set->host_diag;
+
+ if (instance->instancet == &megasas_instance_template_skinny) {
+ seq_offset = ®_set->fusion_seq_offset;
+ hostdiag_offset = ®_set->fusion_host_diag;
+ }
+
+ writel(0, seq_offset);
+ writel(4, seq_offset);
+ writel(0xb, seq_offset);
+ writel(2, seq_offset);
+ writel(7, seq_offset);
+ writel(0xd, seq_offset);
- writel(0, ®_set->seq_offset);
- writel(4, ®_set->seq_offset);
- writel(0xb, ®_set->seq_offset);
- writel(2, ®_set->seq_offset);
- writel(7, ®_set->seq_offset);
- writel(0xd, ®_set->seq_offset);
msleep(1000);
- HostDiag = (u32)readl(®_set->host_diag);
+ HostDiag = (u32)readl(hostdiag_offset);
while ( !( HostDiag & DIAG_WRITE_ENABLE) ) {
msleep(100);
- HostDiag = (u32)readl(®_set->host_diag);
+ HostDiag = (u32)readl(hostdiag_offset);
printk(KERN_NOTICE "RESETGEN2: retry=%x, hostdiag=%x\n",
retry, HostDiag);
printk(KERN_NOTICE "ADP_RESET_GEN2: HostDiag=%x\n", HostDiag);
- writel((HostDiag | DIAG_RESET_ADAPTER), ®_set->host_diag);
+ writel((HostDiag | DIAG_RESET_ADAPTER), hostdiag_offset);
ssleep(10);
- HostDiag = (u32)readl(®_set->host_diag);
+ HostDiag = (u32)readl(hostdiag_offset);
while ( ( HostDiag & DIAG_RESET_ADAPTER) ) {
msleep(100);
- HostDiag = (u32)readl(®_set->host_diag);
+ HostDiag = (u32)readl(hostdiag_offset);
printk(KERN_NOTICE "RESET_GEN2: retry=%x, hostdiag=%x\n",
retry, HostDiag);
if ((mfiStatus = instance->instancet->clear_intr(
instance->reg_set)
) == 0) {
- return IRQ_NONE;
+ /* Hardware may not set outbound_intr_status in MSI-X mode */
+ if (!instance->msi_flag)
+ return IRQ_NONE;
}
instance->mfiStatus = mfiStatus;
case MFI_STATE_FAULT:
printk(KERN_DEBUG "megasas: FW in FAULT state!!\n");
- return -ENODEV;
+ max_wait = MEGASAS_RESET_WAIT_TIME;
+ cur_state = MFI_STATE_FAULT;
+ break;
case MFI_STATE_WAIT_HANDSHAKE:
/*
megasas_free_cmds(instance);
fail_alloc_cmds:
- iounmap(instance->reg_set);
return 1;
}
/* Get operational params, sge flags, send init cmd to controller */
if (instance->instancet->init_adapter(instance))
- return -ENODEV;
+ goto fail_init_adapter;
printk(KERN_ERR "megasas: INIT adapter done\n");
* Setup tasklet for cmd completion
*/
- tasklet_init(&instance->isr_tasklet, megasas_complete_cmd_dpc,
+ tasklet_init(&instance->isr_tasklet, instance->instancet->tasklet,
(unsigned long)instance);
/* Initialize the cmd completion timer */
MEGASAS_COMPLETION_TIMER_INTERVAL);
return 0;
+fail_init_adapter:
fail_ready_state:
iounmap(instance->reg_set);
instance->max_fw_cmds - MEGASAS_INT_CMDS;
host->this_id = instance->init_id;
host->sg_tablesize = instance->max_num_sge;
+
+ if (instance->fw_support_ieee)
+ instance->max_sectors_per_req = MEGASAS_MAX_SECTORS_IEEE;
+
/*
* Check if the module parameter value for max_sectors can be used
*/
static int __devinit
megasas_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
{
- int rval;
+ int rval, pos;
struct Scsi_Host *host;
struct megasas_instance *instance;
+ u16 control = 0;
+
+ /* Reset MSI-X in the kdump kernel */
+ if (reset_devices) {
+ pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
+ if (pos) {
+ pci_read_config_word(pdev, msi_control_reg(pos),
+ &control);
+ if (control & PCI_MSIX_FLAGS_ENABLE) {
+ dev_info(&pdev->dev, "resetting MSI-X\n");
+ pci_write_config_word(pdev,
+ msi_control_reg(pos),
+ control &
+ ~PCI_MSIX_FLAGS_ENABLE);
+ }
+ }
+ }
/*
* Announce PCI information
else
INIT_WORK(&instance->work_init, process_fw_state_change_wq);
- /*
- * Initialize MFI Firmware
- */
- if (megasas_init_fw(instance))
- goto fail_init_mfi;
-
/* Try to enable MSI-X */
if ((instance->pdev->device != PCI_DEVICE_ID_LSI_SAS1078R) &&
(instance->pdev->device != PCI_DEVICE_ID_LSI_SAS1078DE) &&
&instance->msixentry, 1))
instance->msi_flag = 1;
+ /*
+ * Initialize MFI Firmware
+ */
+ if (megasas_init_fw(instance))
+ goto fail_init_mfi;
+
/*
* Register IRQ
*/
instance->instancet->disable_intr(instance->reg_set);
free_irq(instance->msi_flag ? instance->msixentry.vector :
instance->pdev->irq, instance);
+fail_irq:
+ if (instance->pdev->device == PCI_DEVICE_ID_LSI_FUSION)
+ megasas_release_fusion(instance);
+ else
+ megasas_release_mfi(instance);
+ fail_init_mfi:
if (instance->msi_flag)
pci_disable_msix(instance->pdev);
-
- fail_irq:
- fail_init_mfi:
fail_alloc_dma_buf:
if (instance->evt_detail)
pci_free_consistent(pdev, sizeof(struct megasas_evt_detail),
instance->evt_detail,
instance->evt_detail_h);
- if (instance->producer) {
+ if (instance->producer)
pci_free_consistent(pdev, sizeof(u32), instance->producer,
instance->producer_h);
- megasas_release_mfi(instance);
- } else {
- megasas_release_fusion(instance);
- }
if (instance->consumer)
pci_free_consistent(pdev, sizeof(u32), instance->consumer,
instance->consumer_h);
/* cancel the delayed work if this work still in queue */
if (instance->ev != NULL) {
struct megasas_aen_event *ev = instance->ev;
- cancel_delayed_work(
+ cancel_delayed_work_sync(
(struct delayed_work *)&ev->hotplug_work);
- flush_scheduled_work();
instance->ev = NULL;
}
if (megasas_set_dma_mask(pdev))
goto fail_set_dma_mask;
+ /* Now re-enable MSI-X */
+ if (instance->msi_flag)
+ pci_enable_msix(instance->pdev, &instance->msixentry, 1);
+
/*
* Initialize MFI Firmware
*/
tasklet_init(&instance->isr_tasklet, instance->instancet->tasklet,
(unsigned long)instance);
- /* Now re-enable MSI-X */
- if (instance->msi_flag)
- pci_enable_msix(instance->pdev, &instance->msixentry, 1);
-
/*
* Register IRQ
*/
/* cancel the delayed work if this work still in queue*/
if (instance->ev != NULL) {
struct megasas_aen_event *ev = instance->ev;
- cancel_delayed_work(
+ cancel_delayed_work_sync(
(struct delayed_work *)&ev->hotplug_work);
- flush_scheduled_work();
instance->ev = NULL;
}
* For each user buffer, create a mirror buffer and copy in
*/
for (i = 0; i < ioc->sge_count; i++) {
+ if (!ioc->sgl[i].iov_len)
+ continue;
+
kbuff_arr[i] = dma_alloc_coherent(&instance->pdev->dev,
ioc->sgl[i].iov_len,
&buf_handle, GFP_KERNEL);
break;
case MR_EVT_LD_OFFLINE:
+ case MR_EVT_CFG_CLEARED:
case MR_EVT_LD_DELETED:
megasas_get_ld_list(instance);
for (i = 0; i < MEGASAS_MAX_LD_CHANNELS; i++) {
struct MR_LD_RAID *MR_LdRaidGet(u32 ld, struct MR_FW_RAID_MAP_ALL *map);
u16 MR_GetLDTgtId(u32 ld, struct MR_FW_RAID_MAP_ALL *map);
+
+void
+megasas_check_and_restore_queue_depth(struct megasas_instance *instance);
+
u8 MR_ValidateMapInfo(struct MR_FW_RAID_MAP_ALL *map,
struct LD_LOAD_BALANCE_INFO *lbInfo);
u16 get_updated_dev_handle(struct LD_LOAD_BALANCE_INFO *lbInfo,
return 0;
-fail_alloc_cmds:
-fail_alloc_mfi_cmds:
fail_map_info:
if (i == 1)
dma_free_coherent(&instance->pdev->dev, fusion->map_sz,
fusion->ld_map[0], fusion->ld_map_phys[0]);
fail_ioc_init:
+ megasas_free_cmds_fusion(instance);
+fail_alloc_cmds:
+ megasas_free_cmds(instance);
+fail_alloc_mfi_cmds:
return 1;
}
local_map_ptr = fusion->ld_map[(instance->map_id & 1)];
/* Check if this is a system PD I/O */
- if ((instance->pd_list[pd_index].driveState == MR_PD_STATE_SYSTEM) &&
- (instance->pd_list[pd_index].driveType == TYPE_DISK)) {
+ if (instance->pd_list[pd_index].driveState == MR_PD_STATE_SYSTEM) {
io_request->Function = 0;
io_request->DevHandle =
local_map_ptr->raidMap.devHndlInfo[device_id].curDevHdl;
MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
}
io_request->RaidContext.VirtualDiskTgtId = device_id;
- io_request->LUN[0] = scmd->device->lun;
+ io_request->LUN[1] = scmd->device->lun;
io_request->DataLength = scsi_bufflen(scmd);
}
device_id = MEGASAS_DEV_INDEX(instance, scp);
/* Zero out some fields so they don't get reused */
- io_request->LUN[0] = 0;
+ io_request->LUN[1] = 0;
io_request->CDB.EEDP32.PrimaryReferenceTag = 0;
io_request->CDB.EEDP32.PrimaryApplicationTagMask = 0;
io_request->EEDPFlags = 0;
wmb();
writel(fusion->last_reply_idx,
&instance->reg_set->reply_post_host_index);
-
+ megasas_check_and_restore_queue_depth(instance);
return IRQ_HANDLED;
}
* scatter/gather formats.
* Creation Date: June 21, 2006
*
- * mpi2.h Version: 02.00.16
+ * mpi2.h Version: 02.00.17
*
* Version History
* ---------------
* function codes, 0xF0 to 0xFF.
* 05-12-10 02.00.16 Bumped MPI2_HEADER_VERSION_UNIT.
* Added alternative defines for the SGE Direction bit.
+ * 08-11-10 02.00.17 Bumped MPI2_HEADER_VERSION_UNIT.
* --------------------------------------------------------------------------
*/
#define MPI2_VERSION_02_00 (0x0200)
/* versioning for this MPI header set */
-#define MPI2_HEADER_VERSION_UNIT (0x10)
+#define MPI2_HEADER_VERSION_UNIT (0x11)
#define MPI2_HEADER_VERSION_DEV (0x00)
#define MPI2_HEADER_VERSION_UNIT_MASK (0xFF00)
#define MPI2_HEADER_VERSION_UNIT_SHIFT (8)
* Title: MPI Configuration messages and pages
* Creation Date: November 10, 2006
*
- * mpi2_cnfg.h Version: 02.00.15
+ * mpi2_cnfg.h Version: 02.00.16
*
* Version History
* ---------------
* define.
* Added MPI2_PHYSDISK0_INCOMPATIBLE_MEDIA_TYPE define.
* Added MPI2_SAS_NEG_LINK_RATE_UNSUPPORTED_PHY define.
+ * 08-11-10 02.00.16 Removed IO Unit Page 1 device path (multi-pathing)
+ * defines.
* --------------------------------------------------------------------------
*/
#define MPI2_IOUNITPAGE1_DISABLE_IR (0x00000040)
#define MPI2_IOUNITPAGE1_DISABLE_TASK_SET_FULL_HANDLING (0x00000020)
#define MPI2_IOUNITPAGE1_IR_USE_STATIC_VOLUME_ID (0x00000004)
-#define MPI2_IOUNITPAGE1_MULTI_PATHING (0x00000002)
-#define MPI2_IOUNITPAGE1_SINGLE_PATHING (0x00000000)
/* IO Unit Page 3 */
+++ /dev/null
- ==============================
- Fusion-MPT MPI 2.0 Header File Change History
- ==============================
-
- Copyright (c) 2000-2010 LSI Corporation.
-
- ---------------------------------------
- Header Set Release Version: 02.00.14
- Header Set Release Date: 10-28-09
- ---------------------------------------
-
- Filename Current version Prior version
- ---------- --------------- -------------
- mpi2.h 02.00.14 02.00.13
- mpi2_cnfg.h 02.00.13 02.00.12
- mpi2_init.h 02.00.08 02.00.07
- mpi2_ioc.h 02.00.13 02.00.12
- mpi2_raid.h 02.00.04 02.00.04
- mpi2_sas.h 02.00.03 02.00.02
- mpi2_targ.h 02.00.03 02.00.03
- mpi2_tool.h 02.00.04 02.00.04
- mpi2_type.h 02.00.00 02.00.00
- mpi2_ra.h 02.00.00 02.00.00
- mpi2_hbd.h 02.00.00
- mpi2_history.txt 02.00.14 02.00.13
-
-
- * Date Version Description
- * -------- -------- ------------------------------------------------------
-
-mpi2.h
- * 04-30-07 02.00.00 Corresponds to Fusion-MPT MPI Specification Rev A.
- * 06-04-07 02.00.01 Bumped MPI2_HEADER_VERSION_UNIT.
- * 06-26-07 02.00.02 Bumped MPI2_HEADER_VERSION_UNIT.
- * 08-31-07 02.00.03 Bumped MPI2_HEADER_VERSION_UNIT.
- * Moved ReplyPostHostIndex register to offset 0x6C of the
- * MPI2_SYSTEM_INTERFACE_REGS and modified the define for
- * MPI2_REPLY_POST_HOST_INDEX_OFFSET.
- * Added union of request descriptors.
- * Added union of reply descriptors.
- * 10-31-07 02.00.04 Bumped MPI2_HEADER_VERSION_UNIT.
- * Added define for MPI2_VERSION_02_00.
- * Fixed the size of the FunctionDependent5 field in the
- * MPI2_DEFAULT_REPLY structure.
- * 12-18-07 02.00.05 Bumped MPI2_HEADER_VERSION_UNIT.
- * Removed the MPI-defined Fault Codes and extended the
- * product specific codes up to 0xEFFF.
- * Added a sixth key value for the WriteSequence register
- * and changed the flush value to 0x0.
- * Added message function codes for Diagnostic Buffer Post
- * and Diagnsotic Release.
- * New IOCStatus define: MPI2_IOCSTATUS_DIAGNOSTIC_RELEASED
- * Moved MPI2_VERSION_UNION from mpi2_ioc.h.
- * 02-29-08 02.00.06 Bumped MPI2_HEADER_VERSION_UNIT.
- * 03-03-08 02.00.07 Bumped MPI2_HEADER_VERSION_UNIT.
- * 05-21-08 02.00.08 Bumped MPI2_HEADER_VERSION_UNIT.
- * Added #defines for marking a reply descriptor as unused.
- * 06-27-08 02.00.09 Bumped MPI2_HEADER_VERSION_UNIT.
- * 10-02-08 02.00.10 Bumped MPI2_HEADER_VERSION_UNIT.
- * Moved LUN field defines from mpi2_init.h.
- * 01-19-09 02.00.11 Bumped MPI2_HEADER_VERSION_UNIT.
- * 05-06-09 02.00.12 Bumped MPI2_HEADER_VERSION_UNIT.
- * In all request and reply descriptors, replaced VF_ID
- * field with MSIxIndex field.
- * Removed DevHandle field from
- * MPI2_SCSI_IO_SUCCESS_REPLY_DESCRIPTOR and made those
- * bytes reserved.
- * Added RAID Accelerator functionality.
- * 07-30-09 02.00.13 Bumped MPI2_HEADER_VERSION_UNIT.
- * 10-28-09 02.00.14 Bumped MPI2_HEADER_VERSION_UNIT.
- * Added MSI-x index mask and shift for Reply Post Host
- * Index register.
- * Added function code for Host Based Discovery Action.
- * --------------------------------------------------------------------------
-
-mpi2_cnfg.h
- * 04-30-07 02.00.00 Corresponds to Fusion-MPT MPI Specification Rev A.
- * 06-04-07 02.00.01 Added defines for SAS IO Unit Page 2 PhyFlags.
- * Added Manufacturing Page 11.
- * Added MPI2_SAS_EXPANDER0_FLAGS_CONNECTOR_END_DEVICE
- * define.
- * 06-26-07 02.00.02 Adding generic structure for product-specific
- * Manufacturing pages: MPI2_CONFIG_PAGE_MANUFACTURING_PS.
- * Rework of BIOS Page 2 configuration page.
- * Fixed MPI2_BIOSPAGE2_BOOT_DEVICE to be a union of the
- * forms.
- * Added configuration pages IOC Page 8 and Driver
- * Persistent Mapping Page 0.
- * 08-31-07 02.00.03 Modified configuration pages dealing with Integrated
- * RAID (Manufacturing Page 4, RAID Volume Pages 0 and 1,
- * RAID Physical Disk Pages 0 and 1, RAID Configuration
- * Page 0).
- * Added new value for AccessStatus field of SAS Device
- * Page 0 (_SATA_NEEDS_INITIALIZATION).
- * 10-31-07 02.00.04 Added missing SEPDevHandle field to
- * MPI2_CONFIG_PAGE_SAS_ENCLOSURE_0.
- * 12-18-07 02.00.05 Modified IO Unit Page 0 to use 32-bit version fields for
- * NVDATA.
- * Modified IOC Page 7 to use masks and added field for
- * SASBroadcastPrimitiveMasks.
- * Added MPI2_CONFIG_PAGE_BIOS_4.
- * Added MPI2_CONFIG_PAGE_LOG_0.
- * 02-29-08 02.00.06 Modified various names to make them 32-character unique.
- * Added SAS Device IDs.
- * Updated Integrated RAID configuration pages including
- * Manufacturing Page 4, IOC Page 6, and RAID Configuration
- * Page 0.
- * 05-21-08 02.00.07 Added define MPI2_MANPAGE4_MIX_SSD_SAS_SATA.
- * Added define MPI2_MANPAGE4_PHYSDISK_128MB_COERCION.
- * Fixed define MPI2_IOCPAGE8_FLAGS_ENCLOSURE_SLOT_MAPPING.
- * Added missing MaxNumRoutedSasAddresses field to
- * MPI2_CONFIG_PAGE_EXPANDER_0.
- * Added SAS Port Page 0.
- * Modified structure layout for
- * MPI2_CONFIG_PAGE_DRIVER_MAPPING_0.
- * 06-27-08 02.00.08 Changed MPI2_CONFIG_PAGE_RD_PDISK_1 to use
- * MPI2_RAID_PHYS_DISK1_PATH_MAX to size the array.
- * 10-02-08 02.00.09 Changed MPI2_RAID_PGAD_CONFIGNUM_MASK from 0x0000FFFF
- * to 0x000000FF.
- * Added two new values for the Physical Disk Coercion Size
- * bits in the Flags field of Manufacturing Page 4.
- * Added product-specific Manufacturing pages 16 to 31.
- * Modified Flags bits for controlling write cache on SATA
- * drives in IO Unit Page 1.
- * Added new bit to AdditionalControlFlags of SAS IO Unit
- * Page 1 to control Invalid Topology Correction.
- * Added SupportedPhysDisks field to RAID Volume Page 1 and
- * added related defines.
- * Added additional defines for RAID Volume Page 0
- * VolumeStatusFlags field.
- * Modified meaning of RAID Volume Page 0 VolumeSettings
- * define for auto-configure of hot-swap drives.
- * Added PhysDiskAttributes field (and related defines) to
- * RAID Physical Disk Page 0.
- * Added MPI2_SAS_PHYINFO_PHY_VACANT define.
- * Added three new DiscoveryStatus bits for SAS IO Unit
- * Page 0 and SAS Expander Page 0.
- * Removed multiplexing information from SAS IO Unit pages.
- * Added BootDeviceWaitTime field to SAS IO Unit Page 4.
- * Removed Zone Address Resolved bit from PhyInfo and from
- * Expander Page 0 Flags field.
- * Added two new AccessStatus values to SAS Device Page 0
- * for indicating routing problems. Added 3 reserved words
- * to this page.
- * 01-19-09 02.00.10 Fixed defines for GPIOVal field of IO Unit Page 3.
- * Inserted missing reserved field into structure for IOC
- * Page 6.
- * Added more pending task bits to RAID Volume Page 0
- * VolumeStatusFlags defines.
- * Added MPI2_PHYSDISK0_STATUS_FLAG_NOT_CERTIFIED define.
- * Added a new DiscoveryStatus bit for SAS IO Unit Page 0
- * and SAS Expander Page 0 to flag a downstream initiator
- * when in simplified routing mode.
- * Removed SATA Init Failure defines for DiscoveryStatus
- * fields of SAS IO Unit Page 0 and SAS Expander Page 0.
- * Added MPI2_SAS_DEVICE0_ASTATUS_DEVICE_BLOCKED define.
- * Added PortGroups, DmaGroup, and ControlGroup fields to
- * SAS Device Page 0.
- * 05-06-09 02.00.11 Added structures and defines for IO Unit Page 5 and IO
- * Unit Page 6.
- * Added expander reduced functionality data to SAS
- * Expander Page 0.
- * Added SAS PHY Page 2 and SAS PHY Page 3.
- * 07-30-09 02.00.12 Added IO Unit Page 7.
- * Added new device ids.
- * Added SAS IO Unit Page 5.
- * Added partial and slumber power management capable flags
- * to SAS Device Page 0 Flags field.
- * Added PhyInfo defines for power condition.
- * Added Ethernet configuration pages.
- * 10-28-09 02.00.13 Added MPI2_IOUNITPAGE1_ENABLE_HOST_BASED_DISCOVERY.
- * Added SAS PHY Page 4 structure and defines.
- * --------------------------------------------------------------------------
-
-mpi2_init.h
- * 04-30-07 02.00.00 Corresponds to Fusion-MPT MPI Specification Rev A.
- * 10-31-07 02.00.01 Fixed name for pMpi2SCSITaskManagementRequest_t.
- * 12-18-07 02.00.02 Modified Task Management Target Reset Method defines.
- * 02-29-08 02.00.03 Added Query Task Set and Query Unit Attention.
- * 03-03-08 02.00.04 Fixed name of struct _MPI2_SCSI_TASK_MANAGE_REPLY.
- * 05-21-08 02.00.05 Fixed typo in name of Mpi2SepRequest_t.
- * 10-02-08 02.00.06 Removed Untagged and No Disconnect values from SCSI IO
- * Control field Task Attribute flags.
- * Moved LUN field defines to mpi2.h becasue they are
- * common to many structures.
- * 05-06-09 02.00.07 Changed task management type of Query Unit Attention to
- * Query Asynchronous Event.
- * Defined two new bits in the SlotStatus field of the SCSI
- * Enclosure Processor Request and Reply.
- * 10-28-09 02.00.08 Added defines for decoding the ResponseInfo bytes for
- * both SCSI IO Error Reply and SCSI Task Management Reply.
- * Added ResponseInfo field to MPI2_SCSI_TASK_MANAGE_REPLY.
- * Added MPI2_SCSITASKMGMT_RSP_TM_OVERLAPPED_TAG define.
- * --------------------------------------------------------------------------
-
-mpi2_ioc.h
- * 04-30-07 02.00.00 Corresponds to Fusion-MPT MPI Specification Rev A.
- * 06-04-07 02.00.01 In IOCFacts Reply structure, renamed MaxDevices to
- * MaxTargets.
- * Added TotalImageSize field to FWDownload Request.
- * Added reserved words to FWUpload Request.
- * 06-26-07 02.00.02 Added IR Configuration Change List Event.
- * 08-31-07 02.00.03 Removed SystemReplyQueueDepth field from the IOCInit
- * request and replaced it with
- * ReplyDescriptorPostQueueDepth and ReplyFreeQueueDepth.
- * Replaced the MinReplyQueueDepth field of the IOCFacts
- * reply with MaxReplyDescriptorPostQueueDepth.
- * Added MPI2_RDPQ_DEPTH_MIN define to specify the minimum
- * depth for the Reply Descriptor Post Queue.
- * Added SASAddress field to Initiator Device Table
- * Overflow Event data.
- * 10-31-07 02.00.04 Added ReasonCode MPI2_EVENT_SAS_INIT_RC_NOT_RESPONDING
- * for SAS Initiator Device Status Change Event data.
- * Modified Reason Code defines for SAS Topology Change
- * List Event data, including adding a bit for PHY Vacant
- * status, and adding a mask for the Reason Code.
- * Added define for
- * MPI2_EVENT_SAS_TOPO_ES_DELAY_NOT_RESPONDING.
- * Added define for MPI2_EXT_IMAGE_TYPE_MEGARAID.
- * 12-18-07 02.00.05 Added Boot Status defines for the IOCExceptions field of
- * the IOCFacts Reply.
- * Removed MPI2_IOCFACTS_CAPABILITY_EXTENDED_BUFFER define.
- * Moved MPI2_VERSION_UNION to mpi2.h.
- * Changed MPI2_EVENT_NOTIFICATION_REQUEST to use masks
- * instead of enables, and added SASBroadcastPrimitiveMasks
- * field.
- * Added Log Entry Added Event and related structure.
- * 02-29-08 02.00.06 Added define MPI2_IOCFACTS_CAPABILITY_INTEGRATED_RAID.
- * Removed define MPI2_IOCFACTS_PROTOCOL_SMP_TARGET.
- * Added MaxVolumes and MaxPersistentEntries fields to
- * IOCFacts reply.
- * Added ProtocalFlags and IOCCapabilities fields to
- * MPI2_FW_IMAGE_HEADER.
- * Removed MPI2_PORTENABLE_FLAGS_ENABLE_SINGLE_PORT.
- * 03-03-08 02.00.07 Fixed MPI2_FW_IMAGE_HEADER by changing Reserved26 to
- * a U16 (from a U32).
- * Removed extra 's' from EventMasks name.
- * 06-27-08 02.00.08 Fixed an offset in a comment.
- * 10-02-08 02.00.09 Removed SystemReplyFrameSize from MPI2_IOC_INIT_REQUEST.
- * Removed CurReplyFrameSize from MPI2_IOC_FACTS_REPLY and
- * renamed MinReplyFrameSize to ReplyFrameSize.
- * Added MPI2_IOCFACTS_EXCEPT_IR_FOREIGN_CONFIG_MAX.
- * Added two new RAIDOperation values for Integrated RAID
- * Operations Status Event data.
- * Added four new IR Configuration Change List Event data
- * ReasonCode values.
- * Added two new ReasonCode defines for SAS Device Status
- * Change Event data.
- * Added three new DiscoveryStatus bits for the SAS
- * Discovery event data.
- * Added Multiplexing Status Change bit to the PhyStatus
- * field of the SAS Topology Change List event data.
- * Removed define for MPI2_INIT_IMAGE_BOOTFLAGS_XMEMCOPY.
- * BootFlags are now product-specific.
- * Added defines for the indivdual signature bytes
- * for MPI2_INIT_IMAGE_FOOTER.
- * 01-19-09 02.00.10 Added MPI2_IOCFACTS_CAPABILITY_EVENT_REPLAY define.
- * Added MPI2_EVENT_SAS_DISC_DS_DOWNSTREAM_INITIATOR
- * define.
- * Added MPI2_EVENT_SAS_DEV_STAT_RC_SATA_INIT_FAILURE
- * define.
- * Removed MPI2_EVENT_SAS_DISC_DS_SATA_INIT_FAILURE define.
- * 05-06-09 02.00.11 Added MPI2_IOCFACTS_CAPABILITY_RAID_ACCELERATOR define.
- * Added MPI2_IOCFACTS_CAPABILITY_MSI_X_INDEX define.
- * Added two new reason codes for SAS Device Status Change
- * Event.
- * Added new event: SAS PHY Counter.
- * 07-30-09 02.00.12 Added GPIO Interrupt event define and structure.
- * Added MPI2_IOCFACTS_CAPABILITY_EXTENDED_BUFFER define.
- * Added new product id family for 2208.
- * 10-28-09 02.00.13 Added HostMSIxVectors field to MPI2_IOC_INIT_REQUEST.
- * Added MaxMSIxVectors field to MPI2_IOC_FACTS_REPLY.
- * Added MinDevHandle field to MPI2_IOC_FACTS_REPLY.
- * Added MPI2_IOCFACTS_CAPABILITY_HOST_BASED_DISCOVERY.
- * Added MPI2_EVENT_HOST_BASED_DISCOVERY_PHY define.
- * Added MPI2_EVENT_SAS_TOPO_ES_NO_EXPANDER define.
- * Added Host Based Discovery Phy Event data.
- * Added defines for ProductID Product field
- * (MPI2_FW_HEADER_PID_).
- * Modified values for SAS ProductID Family
- * (MPI2_FW_HEADER_PID_FAMILY_).
- * --------------------------------------------------------------------------
-
-mpi2_raid.h
- * 04-30-07 02.00.00 Corresponds to Fusion-MPT MPI Specification Rev A.
- * 08-31-07 02.00.01 Modifications to RAID Action request and reply,
- * including the Actions and ActionData.
- * 02-29-08 02.00.02 Added MPI2_RAID_ACTION_ADATA_DISABL_FULL_REBUILD.
- * 05-21-08 02.00.03 Added MPI2_RAID_VOL_CREATION_NUM_PHYSDISKS so that
- * the PhysDisk array in MPI2_RAID_VOLUME_CREATION_STRUCT
- * can be sized by the build environment.
- * 07-30-09 02.00.04 Added proper define for the Use Default Settings bit of
- * VolumeCreationFlags and marked the old one as obsolete.
- * 05-12-10 02.00.05 Added MPI2_RAID_VOL_FLAGS_OP_MDC define.
- * --------------------------------------------------------------------------
-
-mpi2_sas.h
- * 04-30-07 02.00.00 Corresponds to Fusion-MPT MPI Specification Rev A.
- * 06-26-07 02.00.01 Added Clear All Persistent Operation to SAS IO Unit
- * Control Request.
- * 10-02-08 02.00.02 Added Set IOC Parameter Operation to SAS IO Unit Control
- * Request.
- * 10-28-09 02.00.03 Changed the type of SGL in MPI2_SATA_PASSTHROUGH_REQUEST
- * to MPI2_SGE_IO_UNION since it supports chained SGLs.
- * 05-12-10 02.00.04 Modified some comments.
- * --------------------------------------------------------------------------
-
-mpi2_targ.h
- * 04-30-07 02.00.00 Corresponds to Fusion-MPT MPI Specification Rev A.
- * 08-31-07 02.00.01 Added Command Buffer Data Location Address Space bits to
- * BufferPostFlags field of CommandBufferPostBase Request.
- * 02-29-08 02.00.02 Modified various names to make them 32-character unique.
- * 10-02-08 02.00.03 Removed NextCmdBufferOffset from
- * MPI2_TARGET_CMD_BUF_POST_BASE_REQUEST.
- * Target Status Send Request only takes a single SGE for
- * response data.
- * --------------------------------------------------------------------------
-
-mpi2_tool.h
- * 04-30-07 02.00.00 Corresponds to Fusion-MPT MPI Specification Rev A.
- * 12-18-07 02.00.01 Added Diagnostic Buffer Post and Diagnostic Release
- * structures and defines.
- * 02-29-08 02.00.02 Modified various names to make them 32-character unique.
- * 05-06-09 02.00.03 Added ISTWI Read Write Tool and Diagnostic CLI Tool.
- * 07-30-09 02.00.04 Added ExtendedType field to DiagnosticBufferPost request
- * and reply messages.
- * Added MPI2_DIAG_BUF_TYPE_EXTENDED.
- * Incremented MPI2_DIAG_BUF_TYPE_COUNT.
- * 05-12-10 02.00.05 Added Diagnostic Data Upload tool.
- * --------------------------------------------------------------------------
-
-mpi2_type.h
- * 04-30-07 02.00.00 Corresponds to Fusion-MPT MPI Specification Rev A.
- * --------------------------------------------------------------------------
-
-mpi2_ra.h
- * 05-06-09 02.00.00 Initial version.
- * --------------------------------------------------------------------------
-
-mpi2_hbd.h
- * 10-28-09 02.00.00 Initial version.
- * --------------------------------------------------------------------------
-
-
-mpi2_history.txt Parts list history
-
-Filename 02.00.14 02.00.13 02.00.12
----------- -------- -------- --------
-mpi2.h 02.00.14 02.00.13 02.00.12
-mpi2_cnfg.h 02.00.13 02.00.12 02.00.11
-mpi2_init.h 02.00.08 02.00.07 02.00.07
-mpi2_ioc.h 02.00.13 02.00.12 02.00.11
-mpi2_raid.h 02.00.04 02.00.04 02.00.03
-mpi2_sas.h 02.00.03 02.00.02 02.00.02
-mpi2_targ.h 02.00.03 02.00.03 02.00.03
-mpi2_tool.h 02.00.04 02.00.04 02.00.03
-mpi2_type.h 02.00.00 02.00.00 02.00.00
-mpi2_ra.h 02.00.00 02.00.00 02.00.00
-mpi2_hbd.h 02.00.00
-
-Filename 02.00.11 02.00.10 02.00.09 02.00.08 02.00.07 02.00.06
----------- -------- -------- -------- -------- -------- --------
-mpi2.h 02.00.11 02.00.10 02.00.09 02.00.08 02.00.07 02.00.06
-mpi2_cnfg.h 02.00.10 02.00.09 02.00.08 02.00.07 02.00.06 02.00.06
-mpi2_init.h 02.00.06 02.00.06 02.00.05 02.00.05 02.00.04 02.00.03
-mpi2_ioc.h 02.00.10 02.00.09 02.00.08 02.00.07 02.00.07 02.00.06
-mpi2_raid.h 02.00.03 02.00.03 02.00.03 02.00.03 02.00.02 02.00.02
-mpi2_sas.h 02.00.02 02.00.02 02.00.01 02.00.01 02.00.01 02.00.01
-mpi2_targ.h 02.00.03 02.00.03 02.00.02 02.00.02 02.00.02 02.00.02
-mpi2_tool.h 02.00.02 02.00.02 02.00.02 02.00.02 02.00.02 02.00.02
-mpi2_type.h 02.00.00 02.00.00 02.00.00 02.00.00 02.00.00 02.00.00
-
-Filename 02.00.05 02.00.04 02.00.03 02.00.02 02.00.01 02.00.00
----------- -------- -------- -------- -------- -------- --------
-mpi2.h 02.00.05 02.00.04 02.00.03 02.00.02 02.00.01 02.00.00
-mpi2_cnfg.h 02.00.05 02.00.04 02.00.03 02.00.02 02.00.01 02.00.00
-mpi2_init.h 02.00.02 02.00.01 02.00.00 02.00.00 02.00.00 02.00.00
-mpi2_ioc.h 02.00.05 02.00.04 02.00.03 02.00.02 02.00.01 02.00.00
-mpi2_raid.h 02.00.01 02.00.01 02.00.01 02.00.00 02.00.00 02.00.00
-mpi2_sas.h 02.00.01 02.00.01 02.00.01 02.00.01 02.00.00 02.00.00
-mpi2_targ.h 02.00.01 02.00.01 02.00.01 02.00.00 02.00.00 02.00.00
-mpi2_tool.h 02.00.01 02.00.00 02.00.00 02.00.00 02.00.00 02.00.00
-mpi2_type.h 02.00.00 02.00.00 02.00.00 02.00.00 02.00.00 02.00.00
-
* Title: MPI Serial Attached SCSI structures and definitions
* Creation Date: February 9, 2007
*
- * mpi2_sas.h Version: 02.00.04
+ * mpi2_sas.h Version: 02.00.05
*
* Version History
* ---------------
* 10-28-09 02.00.03 Changed the type of SGL in MPI2_SATA_PASSTHROUGH_REQUEST
* to MPI2_SGE_IO_UNION since it supports chained SGLs.
* 05-12-10 02.00.04 Modified some comments.
+ * 08-11-10 02.00.05 Added NCQ operations to SAS IO Unit Control.
* --------------------------------------------------------------------------
*/
U32 Reserved4; /* 0x14 */
U32 DataLength; /* 0x18 */
U8 CommandFIS[20]; /* 0x1C */
- MPI2_SGE_IO_UNION SGL; /* 0x20 */
+ MPI2_SGE_IO_UNION SGL; /* 0x30 */
} MPI2_SATA_PASSTHROUGH_REQUEST, MPI2_POINTER PTR_MPI2_SATA_PASSTHROUGH_REQUEST,
Mpi2SataPassthroughRequest_t, MPI2_POINTER pMpi2SataPassthroughRequest_t;
#define MPI2_SAS_OP_REMOVE_DEVICE (0x0D)
#define MPI2_SAS_OP_LOOKUP_MAPPING (0x0E)
#define MPI2_SAS_OP_SET_IOC_PARAMETER (0x0F)
+#define MPI2_SAS_OP_DEV_ENABLE_NCQ (0x14)
+#define MPI2_SAS_OP_DEV_DISABLE_NCQ (0x15)
#define MPI2_SAS_OP_PRODUCT_SPECIFIC_MIN (0x80)
/* values for the PrimFlags field */
* Title: MPI diagnostic tool structures and definitions
* Creation Date: March 26, 2007
*
- * mpi2_tool.h Version: 02.00.05
+ * mpi2_tool.h Version: 02.00.06
*
* Version History
* ---------------
* Added MPI2_DIAG_BUF_TYPE_EXTENDED.
* Incremented MPI2_DIAG_BUF_TYPE_COUNT.
* 05-12-10 02.00.05 Added Diagnostic Data Upload tool.
+ * 08-11-10 02.00.06 Added defines that were missing for Diagnostic Buffer
+ * Post Request.
* --------------------------------------------------------------------------
*/
/* count of the number of buffer types */
#define MPI2_DIAG_BUF_TYPE_COUNT (0x03)
+/* values for the Flags field */
+#define MPI2_DIAG_BUF_FLAG_RELEASE_ON_FULL (0x00000002)
+#define MPI2_DIAG_BUF_FLAG_IMMEDIATE_RELEASE (0x00000001)
+
/****************************************************************************
* Diagnostic Buffer Post reply
_base_get_cb_idx(struct MPT2SAS_ADAPTER *ioc, u16 smid)
{
int i;
- u8 cb_idx = 0xFF;
-
- if (smid >= ioc->hi_priority_smid) {
- if (smid < ioc->internal_smid) {
- i = smid - ioc->hi_priority_smid;
- cb_idx = ioc->hpr_lookup[i].cb_idx;
- } else if (smid <= ioc->hba_queue_depth) {
- i = smid - ioc->internal_smid;
- cb_idx = ioc->internal_lookup[i].cb_idx;
- }
- } else {
+ u8 cb_idx;
+
+ if (smid < ioc->hi_priority_smid) {
i = smid - 1;
cb_idx = ioc->scsi_lookup[i].cb_idx;
- }
+ } else if (smid < ioc->internal_smid) {
+ i = smid - ioc->hi_priority_smid;
+ cb_idx = ioc->hpr_lookup[i].cb_idx;
+ } else if (smid <= ioc->hba_queue_depth) {
+ i = smid - ioc->internal_smid;
+ cb_idx = ioc->internal_lookup[i].cb_idx;
+ } else
+ cb_idx = 0xFF;
return cb_idx;
}
struct scsi_cmnd *scmd)
{
unsigned long flags;
- struct request_tracker *request;
+ struct scsiio_tracker *request;
u16 smid;
spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
}
request = list_entry(ioc->free_list.next,
- struct request_tracker, tracker_list);
+ struct scsiio_tracker, tracker_list);
request->scmd = scmd;
request->cb_idx = cb_idx;
smid = request->smid;
struct chain_tracker *chain_req, *next;
spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
- if (smid >= ioc->hi_priority_smid) {
- if (smid < ioc->internal_smid) {
- /* hi-priority */
- i = smid - ioc->hi_priority_smid;
- ioc->hpr_lookup[i].cb_idx = 0xFF;
- list_add_tail(&ioc->hpr_lookup[i].tracker_list,
- &ioc->hpr_free_list);
- } else {
- /* internal queue */
- i = smid - ioc->internal_smid;
- ioc->internal_lookup[i].cb_idx = 0xFF;
- list_add_tail(&ioc->internal_lookup[i].tracker_list,
- &ioc->internal_free_list);
+ if (smid < ioc->hi_priority_smid) {
+ /* scsiio queue */
+ i = smid - 1;
+ if (!list_empty(&ioc->scsi_lookup[i].chain_list)) {
+ list_for_each_entry_safe(chain_req, next,
+ &ioc->scsi_lookup[i].chain_list, tracker_list) {
+ list_del_init(&chain_req->tracker_list);
+ list_add_tail(&chain_req->tracker_list,
+ &ioc->free_chain_list);
+ }
}
+ ioc->scsi_lookup[i].cb_idx = 0xFF;
+ ioc->scsi_lookup[i].scmd = NULL;
+ list_add_tail(&ioc->scsi_lookup[i].tracker_list,
+ &ioc->free_list);
spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
- return;
- }
- /* scsiio queue */
- i = smid - 1;
- if (!list_empty(&ioc->scsi_lookup[i].chain_list)) {
- list_for_each_entry_safe(chain_req, next,
- &ioc->scsi_lookup[i].chain_list, tracker_list) {
- list_del_init(&chain_req->tracker_list);
- list_add_tail(&chain_req->tracker_list,
- &ioc->free_chain_list);
+ /*
+ * See _wait_for_commands_to_complete() call with regards
+ * to this code.
+ */
+ if (ioc->shost_recovery && ioc->pending_io_count) {
+ if (ioc->pending_io_count == 1)
+ wake_up(&ioc->reset_wq);
+ ioc->pending_io_count--;
}
+ return;
+ } else if (smid < ioc->internal_smid) {
+ /* hi-priority */
+ i = smid - ioc->hi_priority_smid;
+ ioc->hpr_lookup[i].cb_idx = 0xFF;
+ list_add_tail(&ioc->hpr_lookup[i].tracker_list,
+ &ioc->hpr_free_list);
+ } else if (smid <= ioc->hba_queue_depth) {
+ /* internal queue */
+ i = smid - ioc->internal_smid;
+ ioc->internal_lookup[i].cb_idx = 0xFF;
+ list_add_tail(&ioc->internal_lookup[i].tracker_list,
+ &ioc->internal_free_list);
}
- ioc->scsi_lookup[i].cb_idx = 0xFF;
- ioc->scsi_lookup[i].scmd = NULL;
- list_add_tail(&ioc->scsi_lookup[i].tracker_list,
- &ioc->free_list);
spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
-
- /*
- * See _wait_for_commands_to_complete() call with regards to this code.
- */
- if (ioc->shost_recovery && ioc->pending_io_count) {
- if (ioc->pending_io_count == 1)
- wake_up(&ioc->reset_wq);
- ioc->pending_io_count--;
- }
}
/**
ioc->pdev->subsystem_device);
}
+/**
+ * _base_display_intel_branding - Display branding string
+ * @ioc: per adapter object
+ *
+ * Return nothing.
+ */
+static void
+_base_display_intel_branding(struct MPT2SAS_ADAPTER *ioc)
+{
+ if (ioc->pdev->subsystem_vendor == PCI_VENDOR_ID_INTEL &&
+ ioc->pdev->device == MPI2_MFGPAGE_DEVID_SAS2008) {
+
+ switch (ioc->pdev->subsystem_device) {
+ case MPT2SAS_INTEL_RMS2LL080_SSDID:
+ printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
+ MPT2SAS_INTEL_RMS2LL080_BRANDING);
+ break;
+ case MPT2SAS_INTEL_RMS2LL040_SSDID:
+ printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
+ MPT2SAS_INTEL_RMS2LL040_BRANDING);
+ break;
+ }
+ }
+}
+
/**
* _base_display_ioc_capabilities - Disply IOC's capabilities.
* @ioc: per adapter object
ioc->bios_pg3.BiosVersion & 0x000000FF);
_base_display_dell_branding(ioc);
+ _base_display_intel_branding(ioc);
printk(MPT2SAS_INFO_FMT "Protocol=(", ioc->name);
ioc->name, (unsigned long long) ioc->request_dma));
total_sz += sz;
- sz = ioc->scsiio_depth * sizeof(struct request_tracker);
+ sz = ioc->scsiio_depth * sizeof(struct scsiio_tracker);
ioc->scsi_lookup_pages = get_order(sz);
- ioc->scsi_lookup = (struct request_tracker *)__get_free_pages(
+ ioc->scsi_lookup = (struct scsiio_tracker *)__get_free_pages(
GFP_KERNEL, ioc->scsi_lookup_pages);
if (!ioc->scsi_lookup) {
printk(MPT2SAS_ERR_FMT "scsi_lookup: get_free_pages failed, "
#define MPT2SAS_DRIVER_NAME "mpt2sas"
#define MPT2SAS_AUTHOR "LSI Corporation <DL-MPTFusionLinux@lsi.com>"
#define MPT2SAS_DESCRIPTION "LSI MPT Fusion SAS 2.0 Device Driver"
-#define MPT2SAS_DRIVER_VERSION "07.100.00.00"
-#define MPT2SAS_MAJOR_VERSION 07
+#define MPT2SAS_DRIVER_VERSION "08.100.00.00"
+#define MPT2SAS_MAJOR_VERSION 08
#define MPT2SAS_MINOR_VERSION 100
#define MPT2SAS_BUILD_VERSION 00
#define MPT2SAS_RELEASE_VERSION 00
#define MPT_NAME_LENGTH 32 /* generic length of strings */
#define MPT_STRING_LENGTH 64
-#define MPT_MAX_CALLBACKS 16
+#define MPT_MAX_CALLBACKS 16
+
#define CAN_SLEEP 1
#define NO_SLEEP 0
#define MPT2SAS_DELL_PERC_H200_SSDID 0x1F21
#define MPT2SAS_DELL_6GBPS_SAS_SSDID 0x1F22
+/*
+ * Intel HBA branding
+ */
+#define MPT2SAS_INTEL_RMS2LL080_BRANDING \
+ "Intel Integrated RAID Module RMS2LL080"
+#define MPT2SAS_INTEL_RMS2LL040_BRANDING \
+ "Intel Integrated RAID Module RMS2LL040"
+
+/*
+ * Intel HBA SSDIDs
+ */
+#define MPT2SAS_INTEL_RMS2LL080_SSDID 0x350E
+#define MPT2SAS_INTEL_RMS2LL040_SSDID 0x350F
+
/*
* per target private data
*/
};
/**
- * struct request_tracker - firmware request tracker
+ * struct scsiio_tracker - scsi mf request tracker
* @smid: system message id
* @scmd: scsi request pointer
* @cb_idx: callback index
* @chain_list: list of chains associated to this IO
* @tracker_list: list of free request (ioc->free_list)
*/
-struct request_tracker {
+struct scsiio_tracker {
u16 smid;
struct scsi_cmnd *scmd;
u8 cb_idx;
struct list_head tracker_list;
};
+/**
+ * struct request_tracker - misc mf request tracker
+ * @smid: system message id
+ * @scmd: scsi request pointer
+ * @cb_idx: callback index
+ * @tracker_list: list of free request (ioc->free_list)
+ */
+struct request_tracker {
+ u16 smid;
+ u8 cb_idx;
+ struct list_head tracker_list;
+};
+
/**
* struct _tr_list - target reset list
* @handle: device handle
u8 *request;
dma_addr_t request_dma;
u32 request_dma_sz;
- struct request_tracker *scsi_lookup;
+ struct scsiio_tracker *scsi_lookup;
ulong scsi_lookup_pages;
spinlock_t scsi_lookup_lock;
struct list_head free_list;
u32 device_state;
mpt2sas_base_stop_watchdog(ioc);
- flush_scheduled_work();
scsi_block_requests(shost);
device_state = pci_choose_state(pdev, state);
printk(MPT2SAS_INFO_FMT "pdev=0x%p, slot=%s, entering "
const struct osd_sg_entry *sglist, unsigned numentries)
{
u64 len;
- int ret = _add_sg_continuation_descriptor(or, sglist, numentries, &len);
+ u64 off;
+ int ret;
- if (ret)
- return ret;
- osd_req_read(or, obj, 0, bio, len);
+ if (numentries > 1) {
+ off = 0;
+ ret = _add_sg_continuation_descriptor(or, sglist, numentries,
+ &len);
+ if (ret)
+ return ret;
+ } else {
+ /* Optimize the case of single segment, read_sg is a
+ * bidi operation.
+ */
+ len = sglist->len;
+ off = sglist->offset;
+ }
+ osd_req_read(or, obj, off, bio, len);
return 0;
}
return MPI_IO_STATUS_BUSY;
}
-static void pm8001_work_queue(struct work_struct *work)
+static void pm8001_work_fn(struct work_struct *work)
{
- struct delayed_work *dw = container_of(work, struct delayed_work, work);
- struct pm8001_wq *wq = container_of(dw, struct pm8001_wq, work_q);
+ struct pm8001_work *pw = container_of(work, struct pm8001_work, work);
struct pm8001_device *pm8001_dev;
- struct domain_device *dev;
+ struct domain_device *dev;
- switch (wq->handler) {
+ switch (pw->handler) {
case IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS:
- pm8001_dev = wq->data;
+ pm8001_dev = pw->data;
dev = pm8001_dev->sas_device;
pm8001_I_T_nexus_reset(dev);
break;
case IO_OPEN_CNX_ERROR_STP_RESOURCES_BUSY:
- pm8001_dev = wq->data;
+ pm8001_dev = pw->data;
dev = pm8001_dev->sas_device;
pm8001_I_T_nexus_reset(dev);
break;
case IO_DS_IN_ERROR:
- pm8001_dev = wq->data;
+ pm8001_dev = pw->data;
dev = pm8001_dev->sas_device;
pm8001_I_T_nexus_reset(dev);
break;
case IO_DS_NON_OPERATIONAL:
- pm8001_dev = wq->data;
+ pm8001_dev = pw->data;
dev = pm8001_dev->sas_device;
pm8001_I_T_nexus_reset(dev);
break;
}
- list_del(&wq->entry);
- kfree(wq);
+ kfree(pw);
}
static int pm8001_handle_event(struct pm8001_hba_info *pm8001_ha, void *data,
int handler)
{
- struct pm8001_wq *wq;
+ struct pm8001_work *pw;
int ret = 0;
- wq = kmalloc(sizeof(struct pm8001_wq), GFP_ATOMIC);
- if (wq) {
- wq->pm8001_ha = pm8001_ha;
- wq->data = data;
- wq->handler = handler;
- INIT_DELAYED_WORK(&wq->work_q, pm8001_work_queue);
- list_add_tail(&wq->entry, &pm8001_ha->wq_list);
- schedule_delayed_work(&wq->work_q, 0);
+ pw = kmalloc(sizeof(struct pm8001_work), GFP_ATOMIC);
+ if (pw) {
+ pw->pm8001_ha = pm8001_ha;
+ pw->data = data;
+ pw->handler = handler;
+ INIT_WORK(&pw->work, pm8001_work_fn);
+ queue_work(pm8001_wq, &pw->work);
} else
ret = -ENOMEM;
LIST_HEAD(hba_list);
+struct workqueue_struct *pm8001_wq;
+
/**
* The main structure which LLDD must register for scsi core.
*/
static void pm8001_free(struct pm8001_hba_info *pm8001_ha)
{
int i;
- struct pm8001_wq *wq;
if (!pm8001_ha)
return;
PM8001_CHIP_DISP->chip_iounmap(pm8001_ha);
if (pm8001_ha->shost)
scsi_host_put(pm8001_ha->shost);
- list_for_each_entry(wq, &pm8001_ha->wq_list, entry)
- cancel_delayed_work(&wq->work_q);
+ flush_workqueue(pm8001_wq);
kfree(pm8001_ha->tags);
kfree(pm8001_ha);
}
pm8001_ha->sas = sha;
pm8001_ha->shost = shost;
pm8001_ha->id = pm8001_id++;
- INIT_LIST_HEAD(&pm8001_ha->wq_list);
pm8001_ha->logging_level = 0x01;
sprintf(pm8001_ha->name, "%s%d", DRV_NAME, pm8001_ha->id);
#ifdef PM8001_USE_TASKLET
int i , pos;
u32 device_state;
pm8001_ha = sha->lldd_ha;
- flush_scheduled_work();
+ flush_workqueue(pm8001_wq);
scsi_block_requests(pm8001_ha->shost);
pos = pci_find_capability(pdev, PCI_CAP_ID_PM);
if (pos == 0) {
*/
static int __init pm8001_init(void)
{
- int rc;
+ int rc = -ENOMEM;
+
+ pm8001_wq = alloc_workqueue("pm8001", 0, 0);
+ if (!pm8001_wq)
+ goto err;
+
pm8001_id = 0;
pm8001_stt = sas_domain_attach_transport(&pm8001_transport_ops);
if (!pm8001_stt)
- return -ENOMEM;
+ goto err_wq;
rc = pci_register_driver(&pm8001_pci_driver);
if (rc)
- goto err_out;
+ goto err_tp;
return 0;
-err_out:
+
+err_tp:
sas_release_transport(pm8001_stt);
+err_wq:
+ destroy_workqueue(pm8001_wq);
+err:
return rc;
}
{
pci_unregister_driver(&pm8001_pci_driver);
sas_release_transport(pm8001_stt);
+ destroy_workqueue(pm8001_wq);
}
module_init(pm8001_init);
#include <linux/dma-mapping.h>
#include <linux/pci.h>
#include <linux/interrupt.h>
+#include <linux/workqueue.h>
#include <scsi/libsas.h>
#include <scsi/scsi_tcq.h>
#include <scsi/sas_ata.h>
#ifdef PM8001_USE_TASKLET
struct tasklet_struct tasklet;
#endif
- struct list_head wq_list;
u32 logging_level;
u32 fw_status;
const struct firmware *fw_image;
};
-struct pm8001_wq {
- struct delayed_work work_q;
+struct pm8001_work {
+ struct work_struct work;
struct pm8001_hba_info *pm8001_ha;
void *data;
int handler;
- struct list_head entry;
};
struct pm8001_fw_image_header {
void *param3;
};
+/* pm8001 workqueue */
+extern struct workqueue_struct *pm8001_wq;
+
/******************** function prototype *********************/
int pm8001_tag_alloc(struct pm8001_hba_info *pm8001_ha, u32 *tag_out);
void pm8001_tag_init(struct pm8001_hba_info *pm8001_ha);
pmcraid_shutdown(pdev);
pmcraid_disable_interrupts(pinstance, ~0);
- flush_scheduled_work();
+ flush_work_sync(&pinstance->worker_q);
pmcraid_kill_tasklets(pinstance);
pmcraid_unregister_interrupt_handler(pinstance);
volatile struct {
uint32_t mbox_int :1;
uint32_t mbox_busy :1;
-
uint32_t disable_risc_code_load :1;
uint32_t enable_64bit_addressing :1;
uint32_t enable_lip_reset :1;
uint32_t enable_target_reset :1;
uint32_t enable_lip_full_login :1;
uint32_t enable_led_scheme :1;
+
uint32_t msi_enabled :1;
uint32_t msix_enabled :1;
uint32_t disable_serdes :1;
uint32_t pci_channel_io_perm_failure :1;
uint32_t fce_enabled :1;
uint32_t fac_supported :1;
+
uint32_t chip_reset_done :1;
uint32_t port0 :1;
uint32_t running_gold_fw :1;
uint32_t cpu_affinity_enabled :1;
uint32_t disable_msix_handshake :1;
uint32_t fcp_prio_enabled :1;
- uint32_t fw_hung :1;
- uint32_t quiesce_owner:1;
+ uint32_t isp82xx_fw_hung:1;
+
+ uint32_t quiesce_owner:1;
uint32_t thermal_supported:1;
+ uint32_t isp82xx_reset_hdlr_active:1;
/* 26 bits */
} flags;
extern int qla82xx_mbx_intr_disable(scsi_qla_host_t *);
extern void qla82xx_start_iocbs(srb_t *);
extern int qla82xx_fcoe_ctx_reset(scsi_qla_host_t *);
+extern void qla82xx_chip_reset_cleanup(scsi_qla_host_t *);
/* BSG related functions */
extern int qla24xx_bsg_request(struct fc_bsg_job *);
rval = QLA_FUNCTION_FAILED;
if (ms_pkt->entry_status != 0) {
- DEBUG2_3(printk("scsi(%ld): %s failed, error status (%x).\n",
- vha->host_no, routine, ms_pkt->entry_status));
+ DEBUG2_3(printk(KERN_WARNING "scsi(%ld): %s failed, error status "
+ "(%x) on port_id: %02x%02x%02x.\n",
+ vha->host_no, routine, ms_pkt->entry_status,
+ vha->d_id.b.domain, vha->d_id.b.area,
+ vha->d_id.b.al_pa));
} else {
if (IS_FWI2_CAPABLE(ha))
comp_status = le16_to_cpu(
if (ct_rsp->header.response !=
__constant_cpu_to_be16(CT_ACCEPT_RESPONSE)) {
DEBUG2_3(printk("scsi(%ld): %s failed, "
- "rejected request:\n", vha->host_no,
- routine));
+ "rejected request on port_id: %02x%02x%02x\n",
+ vha->host_no, routine,
+ vha->d_id.b.domain, vha->d_id.b.area,
+ vha->d_id.b.al_pa));
DEBUG2_3(qla2x00_dump_buffer(
(uint8_t *)&ct_rsp->header,
sizeof(struct ct_rsp_hdr)));
break;
default:
DEBUG2_3(printk("scsi(%ld): %s failed, completion "
- "status (%x).\n", vha->host_no, routine,
- comp_status));
+ "status (%x) on port_id: %02x%02x%02x.\n",
+ vha->host_no, routine, comp_status,
+ vha->d_id.b.domain, vha->d_id.b.area,
+ vha->d_id.b.al_pa));
break;
}
}
"scsi(%ld): GFF_ID issue IOCB failed "
"(%d).\n", vha->host_no, rval));
} else if (qla2x00_chk_ms_status(vha, ms_pkt, ct_rsp,
- "GPN_ID") != QLA_SUCCESS) {
+ "GFF_ID") != QLA_SUCCESS) {
DEBUG2_3(printk(KERN_INFO
"scsi(%ld): GFF_ID IOCB status had a "
"failure status code\n", vha->host_no));
} else {
/* Mailbox cmd failed. Timeout on min_wait. */
if (time_after_eq(jiffies, mtime) ||
- (IS_QLA82XX(ha) && ha->flags.fw_hung))
+ ha->flags.isp82xx_fw_hung)
break;
}
struct qla_hw_data *ha = vha->hw;
struct scsi_qla_host *vp;
unsigned long flags;
+ fc_port_t *fcport;
- vha->flags.online = 0;
+ /* For ISP82XX, driver waits for completion of the commands.
+ * online flag should be set.
+ */
+ if (!IS_QLA82XX(ha))
+ vha->flags.online = 0;
ha->flags.chip_reset_done = 0;
clear_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
ha->qla_stats.total_isp_aborts++;
qla_printk(KERN_INFO, ha,
"Performing ISP error recovery - ha= %p.\n", ha);
- /* Chip reset does not apply to 82XX */
+ /* For ISP82XX, reset_chip is just disabling interrupts.
+ * Driver waits for the completion of the commands.
+ * the interrupts need to be enabled.
+ */
if (!IS_QLA82XX(ha))
ha->isp_ops->reset_chip(vha);
LOOP_DOWN_TIME);
}
+ /* Clear all async request states across all VPs. */
+ list_for_each_entry(fcport, &vha->vp_fcports, list)
+ fcport->flags &= ~(FCF_LOGIN_NEEDED | FCF_ASYNC_SENT);
+ spin_lock_irqsave(&ha->vport_slock, flags);
+ list_for_each_entry(vp, &ha->vp_list, list) {
+ atomic_inc(&vp->vref_count);
+ spin_unlock_irqrestore(&ha->vport_slock, flags);
+
+ list_for_each_entry(fcport, &vp->vp_fcports, list)
+ fcport->flags &= ~(FCF_LOGIN_NEEDED | FCF_ASYNC_SENT);
+
+ spin_lock_irqsave(&ha->vport_slock, flags);
+ atomic_dec(&vp->vref_count);
+ }
+ spin_unlock_irqrestore(&ha->vport_slock, flags);
+
if (!ha->flags.eeh_busy) {
/* Make sure for ISP 82XX IO DMA is complete */
if (IS_QLA82XX(ha)) {
- if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0,
- WAIT_HOST) == QLA_SUCCESS) {
- DEBUG2(qla_printk(KERN_INFO, ha,
- "Done wait for pending commands\n"));
- }
+ qla82xx_chip_reset_cleanup(vha);
+
+ /* Done waiting for pending commands.
+ * Reset the online flag.
+ */
+ vha->flags.online = 0;
}
/* Requeue all commands in outstanding command list. */
struct qla_hw_data *ha;
struct req_que *req;
struct rsp_que *rsp;
+ char tag[2];
/* Setup device pointers. */
ret = 0;
cmd_pkt->lun = cpu_to_le16(sp->cmd->device->lun);
/* Update tagged queuing modifier */
- cmd_pkt->control_flags = __constant_cpu_to_le16(CF_SIMPLE_TAG);
+ if (scsi_populate_tag_msg(cmd, tag)) {
+ switch (tag[0]) {
+ case HEAD_OF_QUEUE_TAG:
+ cmd_pkt->control_flags =
+ __constant_cpu_to_le16(CF_HEAD_TAG);
+ break;
+ case ORDERED_QUEUE_TAG:
+ cmd_pkt->control_flags =
+ __constant_cpu_to_le16(CF_ORDERED_TAG);
+ break;
+ default:
+ cmd_pkt->control_flags =
+ __constant_cpu_to_le16(CF_SIMPLE_TAG);
+ break;
+ }
+ }
/* Load SCSI command packet. */
memcpy(cmd_pkt->scsi_cdb, cmd->cmnd, cmd->cmd_len);
uint16_t fcp_cmnd_len;
struct fcp_cmnd *fcp_cmnd;
dma_addr_t crc_ctx_dma;
+ char tag[2];
cmd = sp->cmd;
LSD(crc_ctx_dma + CRC_CONTEXT_FCPCMND_OFF));
cmd_pkt->fcp_cmnd_dseg_address[1] = cpu_to_le32(
MSD(crc_ctx_dma + CRC_CONTEXT_FCPCMND_OFF));
- fcp_cmnd->task_attribute = 0;
fcp_cmnd->task_management = 0;
+ /*
+ * Update tagged queuing modifier if using command tag queuing
+ */
+ if (scsi_populate_tag_msg(cmd, tag)) {
+ switch (tag[0]) {
+ case HEAD_OF_QUEUE_TAG:
+ fcp_cmnd->task_attribute = TSK_HEAD_OF_QUEUE;
+ break;
+ case ORDERED_QUEUE_TAG:
+ fcp_cmnd->task_attribute = TSK_ORDERED;
+ break;
+ default:
+ fcp_cmnd->task_attribute = 0;
+ break;
+ }
+ } else {
+ fcp_cmnd->task_attribute = 0;
+ }
+
cmd_pkt->fcp_rsp_dseg_len = 0; /* Let response come in status iocb */
DEBUG18(printk(KERN_INFO "%s(%ld): Total SG(s) Entries %d, Data"
struct scsi_cmnd *cmd = sp->cmd;
struct scsi_qla_host *vha = sp->fcport->vha;
struct qla_hw_data *ha = vha->hw;
+ char tag[2];
/* Setup device pointers. */
ret = 0;
int_to_scsilun(sp->cmd->device->lun, &cmd_pkt->lun);
host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun));
+ /* Update tagged queuing modifier -- default is TSK_SIMPLE (0). */
+ if (scsi_populate_tag_msg(cmd, tag)) {
+ switch (tag[0]) {
+ case HEAD_OF_QUEUE_TAG:
+ cmd_pkt->task = TSK_HEAD_OF_QUEUE;
+ break;
+ case ORDERED_QUEUE_TAG:
+ cmd_pkt->task = TSK_ORDERED;
+ break;
+ }
+ }
+
/* Load SCSI command packet. */
memcpy(cmd_pkt->fcp_cdb, cmd->cmnd, cmd->cmd_len);
host_to_fcp_swap(cmd_pkt->fcp_cdb, sizeof(cmd_pkt->fcp_cdb));
return QLA_FUNCTION_TIMEOUT;
}
+ if (ha->flags.isp82xx_fw_hung) {
+ /* Setting Link-Down error */
+ mcp->mb[0] = MBS_LINK_DOWN_ERROR;
+ rval = QLA_FUNCTION_FAILED;
+ goto premature_exit;
+ }
+
/*
* Wait for active mailbox commands to finish by waiting at most tov
* seconds. This is to serialize actual issuing of mailbox cmds during
return QLA_FUNCTION_TIMEOUT;
}
- if (IS_QLA82XX(ha) && ha->flags.fw_hung) {
- /* Setting Link-Down error */
- mcp->mb[0] = MBS_LINK_DOWN_ERROR;
- rval = QLA_FUNCTION_FAILED;
- goto premature_exit;
- }
-
ha->flags.mbox_busy = 1;
/* Save mailbox command for debug */
ha->mcp = mcp;
ha->flags.mbox_int = 0;
clear_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
- if (IS_QLA82XX(ha) && ha->flags.fw_hung) {
+ if (ha->flags.isp82xx_fw_hung) {
ha->flags.mbox_busy = 0;
/* Setting Link-Down error */
mcp->mb[0] = MBS_LINK_DOWN_ERROR;
"-- completion status (%x).\n", __func__,
vha->host_no, le16_to_cpu(sts->comp_status)));
rval = QLA_FUNCTION_FAILED;
- } else if (!(le16_to_cpu(sts->scsi_status) &
- SS_RESPONSE_INFO_LEN_VALID)) {
- DEBUG2_3_11(printk("%s(%ld): failed to complete IOCB "
- "-- no response info (%x).\n", __func__, vha->host_no,
- le16_to_cpu(sts->scsi_status)));
- rval = QLA_FUNCTION_FAILED;
- } else if (le32_to_cpu(sts->rsp_data_len) < 4) {
- DEBUG2_3_11(printk("%s(%ld): failed to complete IOCB "
- "-- not enough response info (%d).\n", __func__,
- vha->host_no, le32_to_cpu(sts->rsp_data_len)));
- rval = QLA_FUNCTION_FAILED;
- } else if (sts->data[3]) {
- DEBUG2_3_11(printk("%s(%ld): failed to complete IOCB "
- "-- response (%x).\n", __func__,
- vha->host_no, sts->data[3]));
- rval = QLA_FUNCTION_FAILED;
+ } else if (le16_to_cpu(sts->scsi_status) &
+ SS_RESPONSE_INFO_LEN_VALID) {
+ if (le32_to_cpu(sts->rsp_data_len) < 4) {
+ DEBUG2_3_11(printk("%s(%ld): ignoring inconsistent "
+ "data length -- not enough response info (%d).\n",
+ __func__, vha->host_no,
+ le32_to_cpu(sts->rsp_data_len)));
+ } else if (sts->data[3]) {
+ DEBUG2_3_11(printk("%s(%ld): failed to complete IOCB "
+ "-- response (%x).\n", __func__,
+ vha->host_no, sts->data[3]));
+ rval = QLA_FUNCTION_FAILED;
+ }
}
/* Issue marker IOCB. */
#include "qla_def.h"
#include <linux/delay.h>
#include <linux/pci.h>
+#include <scsi/scsi_tcq.h>
#define MASK(n) ((1ULL<<(n))-1)
#define MN_WIN(addr) (((addr & 0x1fc0000) >> 1) | \
dsd_seg = (uint32_t *)&cmd_pkt->fcp_data_dseg_address;
*dsd_seg++ = cpu_to_le32(LSD(dsd_ptr->dsd_list_dma));
*dsd_seg++ = cpu_to_le32(MSD(dsd_ptr->dsd_list_dma));
- *dsd_seg++ = dsd_list_len;
+ cmd_pkt->fcp_data_dseg_len = dsd_list_len;
} else {
*cur_dsd++ = cpu_to_le32(LSD(dsd_ptr->dsd_list_dma));
*cur_dsd++ = cpu_to_le32(MSD(dsd_ptr->dsd_list_dma));
struct qla_hw_data *ha = vha->hw;
struct req_que *req = NULL;
struct rsp_que *rsp = NULL;
+ char tag[2];
/* Setup device pointers. */
ret = 0;
int_to_scsilun(sp->cmd->device->lun, &cmd_pkt->lun);
host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun));
+ /*
+ * Update tagged queuing modifier -- default is TSK_SIMPLE (0).
+ */
+ if (scsi_populate_tag_msg(cmd, tag)) {
+ switch (tag[0]) {
+ case HEAD_OF_QUEUE_TAG:
+ ctx->fcp_cmnd->task_attribute =
+ TSK_HEAD_OF_QUEUE;
+ break;
+ case ORDERED_QUEUE_TAG:
+ ctx->fcp_cmnd->task_attribute =
+ TSK_ORDERED;
+ break;
+ }
+ }
+
/* build FCP_CMND IU */
memset(ctx->fcp_cmnd, 0, sizeof(struct fcp_cmnd));
int_to_scsilun(sp->cmd->device->lun, &ctx->fcp_cmnd->lun);
host_to_fcp_swap((uint8_t *)&cmd_pkt->lun,
sizeof(cmd_pkt->lun));
+ /*
+ * Update tagged queuing modifier -- default is TSK_SIMPLE (0).
+ */
+ if (scsi_populate_tag_msg(cmd, tag)) {
+ switch (tag[0]) {
+ case HEAD_OF_QUEUE_TAG:
+ cmd_pkt->task = TSK_HEAD_OF_QUEUE;
+ break;
+ case ORDERED_QUEUE_TAG:
+ cmd_pkt->task = TSK_ORDERED;
+ break;
+ }
+ }
+
/* Load SCSI command packet. */
memcpy(cmd_pkt->fcp_cdb, cmd->cmnd, cmd->cmd_len);
host_to_fcp_swap(cmd_pkt->fcp_cdb, sizeof(cmd_pkt->fcp_cdb));
}
}
-static void
+int
qla82xx_check_fw_alive(scsi_qla_host_t *vha)
{
- uint32_t fw_heartbeat_counter, halt_status;
- struct qla_hw_data *ha = vha->hw;
+ uint32_t fw_heartbeat_counter;
+ int status = 0;
- fw_heartbeat_counter = qla82xx_rd_32(ha, QLA82XX_PEG_ALIVE_COUNTER);
+ fw_heartbeat_counter = qla82xx_rd_32(vha->hw,
+ QLA82XX_PEG_ALIVE_COUNTER);
/* all 0xff, assume AER/EEH in progress, ignore */
if (fw_heartbeat_counter == 0xffffffff)
- return;
+ return status;
if (vha->fw_heartbeat_counter == fw_heartbeat_counter) {
vha->seconds_since_last_heartbeat++;
/* FW not alive after 2 seconds */
if (vha->seconds_since_last_heartbeat == 2) {
vha->seconds_since_last_heartbeat = 0;
- halt_status = qla82xx_rd_32(ha,
- QLA82XX_PEG_HALT_STATUS1);
- if (halt_status & HALT_STATUS_UNRECOVERABLE) {
- set_bit(ISP_UNRECOVERABLE, &vha->dpc_flags);
- } else {
- qla_printk(KERN_INFO, ha,
- "scsi(%ld): %s - detect abort needed\n",
- vha->host_no, __func__);
- set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
- }
- qla2xxx_wake_dpc(vha);
- ha->flags.fw_hung = 1;
- if (ha->flags.mbox_busy) {
- ha->flags.mbox_int = 1;
- DEBUG2(qla_printk(KERN_ERR, ha,
- "Due to fw hung, doing premature "
- "completion of mbx command\n"));
- if (test_bit(MBX_INTR_WAIT,
- &ha->mbx_cmd_flags))
- complete(&ha->mbx_intr_comp);
- }
+ status = 1;
}
} else
vha->seconds_since_last_heartbeat = 0;
vha->fw_heartbeat_counter = fw_heartbeat_counter;
+ return status;
}
/*
break;
case QLA82XX_DEV_NEED_RESET:
qla82xx_need_reset_handler(vha);
+ dev_init_timeout = jiffies +
+ (ha->nx_dev_init_timeout * HZ);
break;
case QLA82XX_DEV_NEED_QUIESCENT:
qla82xx_need_qsnt_handler(vha);
void qla82xx_watchdog(scsi_qla_host_t *vha)
{
- uint32_t dev_state;
+ uint32_t dev_state, halt_status;
struct qla_hw_data *ha = vha->hw;
- dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
-
/* don't poll if reset is going on */
- if (!(test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) ||
- test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags) ||
- test_bit(ISP_ABORT_RETRY, &vha->dpc_flags))) {
- if (dev_state == QLA82XX_DEV_NEED_RESET) {
+ if (!ha->flags.isp82xx_reset_hdlr_active) {
+ dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
+ if (dev_state == QLA82XX_DEV_NEED_RESET &&
+ !test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags)) {
qla_printk(KERN_WARNING, ha,
- "%s(): Adapter reset needed!\n", __func__);
+ "%s(): Adapter reset needed!\n", __func__);
set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
qla2xxx_wake_dpc(vha);
- ha->flags.fw_hung = 1;
- if (ha->flags.mbox_busy) {
- ha->flags.mbox_int = 1;
- DEBUG2(qla_printk(KERN_ERR, ha,
- "Need reset, doing premature "
- "completion of mbx command\n"));
- if (test_bit(MBX_INTR_WAIT,
- &ha->mbx_cmd_flags))
- complete(&ha->mbx_intr_comp);
- }
} else if (dev_state == QLA82XX_DEV_NEED_QUIESCENT &&
!test_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags)) {
DEBUG(qla_printk(KERN_INFO, ha,
qla2xxx_wake_dpc(vha);
} else {
qla82xx_check_fw_alive(vha);
+ if (qla82xx_check_fw_alive(vha)) {
+ halt_status = qla82xx_rd_32(ha,
+ QLA82XX_PEG_HALT_STATUS1);
+ if (halt_status & HALT_STATUS_UNRECOVERABLE) {
+ set_bit(ISP_UNRECOVERABLE,
+ &vha->dpc_flags);
+ } else {
+ qla_printk(KERN_INFO, ha,
+ "scsi(%ld): %s - detect abort needed\n",
+ vha->host_no, __func__);
+ set_bit(ISP_ABORT_NEEDED,
+ &vha->dpc_flags);
+ }
+ qla2xxx_wake_dpc(vha);
+ ha->flags.isp82xx_fw_hung = 1;
+ if (ha->flags.mbox_busy) {
+ ha->flags.mbox_int = 1;
+ DEBUG2(qla_printk(KERN_ERR, ha,
+ "Due to fw hung, doing premature "
+ "completion of mbx command\n"));
+ if (test_bit(MBX_INTR_WAIT,
+ &ha->mbx_cmd_flags))
+ complete(&ha->mbx_intr_comp);
+ }
+ }
}
}
}
"Exiting.\n", __func__, vha->host_no);
return QLA_SUCCESS;
}
+ ha->flags.isp82xx_reset_hdlr_active = 1;
qla82xx_idc_lock(ha);
dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
qla82xx_idc_unlock(ha);
if (rval == QLA_SUCCESS) {
- ha->flags.fw_hung = 0;
+ ha->flags.isp82xx_fw_hung = 0;
+ ha->flags.isp82xx_reset_hdlr_active = 0;
qla82xx_restart_isp(vha);
}
return status;
}
+
+void
+qla82xx_chip_reset_cleanup(scsi_qla_host_t *vha)
+{
+ int i;
+ unsigned long flags;
+ struct qla_hw_data *ha = vha->hw;
+
+ /* Check if 82XX firmware is alive or not
+ * We may have arrived here from NEED_RESET
+ * detection only
+ */
+ if (!ha->flags.isp82xx_fw_hung) {
+ for (i = 0; i < 2; i++) {
+ msleep(1000);
+ if (qla82xx_check_fw_alive(vha)) {
+ ha->flags.isp82xx_fw_hung = 1;
+ if (ha->flags.mbox_busy) {
+ ha->flags.mbox_int = 1;
+ complete(&ha->mbx_intr_comp);
+ }
+ break;
+ }
+ }
+ }
+
+ /* Abort all commands gracefully if fw NOT hung */
+ if (!ha->flags.isp82xx_fw_hung) {
+ int cnt, que;
+ srb_t *sp;
+ struct req_que *req;
+
+ spin_lock_irqsave(&ha->hardware_lock, flags);
+ for (que = 0; que < ha->max_req_queues; que++) {
+ req = ha->req_q_map[que];
+ if (!req)
+ continue;
+ for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
+ sp = req->outstanding_cmds[cnt];
+ if (sp) {
+ if (!sp->ctx ||
+ (sp->flags & SRB_FCP_CMND_DMA_VALID)) {
+ spin_unlock_irqrestore(
+ &ha->hardware_lock, flags);
+ if (ha->isp_ops->abort_command(sp)) {
+ qla_printk(KERN_INFO, ha,
+ "scsi(%ld): mbx abort command failed in %s\n",
+ vha->host_no, __func__);
+ } else {
+ qla_printk(KERN_INFO, ha,
+ "scsi(%ld): mbx abort command success in %s\n",
+ vha->host_no, __func__);
+ }
+ spin_lock_irqsave(&ha->hardware_lock, flags);
+ }
+ }
+ }
+ }
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
+
+ /* Wait for pending cmds (physical and virtual) to complete */
+ if (!qla2x00_eh_wait_for_pending_commands(vha, 0, 0,
+ WAIT_HOST) == QLA_SUCCESS) {
+ DEBUG2(qla_printk(KERN_INFO, ha,
+ "Done wait for pending commands\n"));
+ }
+ }
+}
static inline srb_t *
qla2x00_get_new_sp(scsi_qla_host_t *vha, fc_port_t *fcport,
- struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
+ struct scsi_cmnd *cmd)
{
srb_t *sp;
struct qla_hw_data *ha = vha->hw;
sp->cmd = cmd;
sp->flags = 0;
CMD_SP(cmd) = (void *)sp;
- cmd->scsi_done = done;
sp->ctx = NULL;
return sp;
}
static int
-qla2xxx_queuecommand_lck(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
+qla2xxx_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd)
{
scsi_qla_host_t *vha = shost_priv(cmd->device->host);
fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
srb_t *sp;
int rval;
- spin_unlock_irq(vha->host->host_lock);
if (ha->flags.eeh_busy) {
if (ha->flags.pci_channel_io_perm_failure)
cmd->result = DID_NO_CONNECT << 16;
goto qc24_target_busy;
}
- sp = qla2x00_get_new_sp(base_vha, fcport, cmd, done);
+ sp = qla2x00_get_new_sp(base_vha, fcport, cmd);
if (!sp)
- goto qc24_host_busy_lock;
+ goto qc24_host_busy;
rval = ha->isp_ops->start_scsi(sp);
if (rval != QLA_SUCCESS)
goto qc24_host_busy_free_sp;
- spin_lock_irq(vha->host->host_lock);
-
return 0;
qc24_host_busy_free_sp:
qla2x00_sp_free_dma(sp);
mempool_free(sp, ha->srb_mempool);
-qc24_host_busy_lock:
- spin_lock_irq(vha->host->host_lock);
+qc24_host_busy:
return SCSI_MLQUEUE_HOST_BUSY;
qc24_target_busy:
- spin_lock_irq(vha->host->host_lock);
return SCSI_MLQUEUE_TARGET_BUSY;
qc24_fail_command:
- spin_lock_irq(vha->host->host_lock);
- done(cmd);
+ cmd->scsi_done(cmd);
return 0;
}
-static DEF_SCSI_QCMD(qla2xxx_queuecommand)
-
-
/*
* qla2x00_eh_wait_on_command
* Waits for the command to be returned by the Firmware for some
{
scsi_qla_host_t *vha = shost_priv(cmd->device->host);
srb_t *sp;
- int ret = SUCCESS;
+ int ret;
unsigned int id, lun;
unsigned long flags;
int wait = 0;
struct qla_hw_data *ha = vha->hw;
- fc_block_scsi_eh(cmd);
-
if (!CMD_SP(cmd))
return SUCCESS;
+ ret = fc_block_scsi_eh(cmd);
+ if (ret != 0)
+ return ret;
+ ret = SUCCESS;
+
id = cmd->device->id;
lun = cmd->device->lun;
fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
int err;
- fc_block_scsi_eh(cmd);
-
if (!fcport)
return FAILED;
+ err = fc_block_scsi_eh(cmd);
+ if (err != 0)
+ return err;
+
qla_printk(KERN_INFO, vha->hw, "scsi(%ld:%d:%d): %s RESET ISSUED.\n",
vha->host_no, cmd->device->id, cmd->device->lun, name);
int ret = FAILED;
unsigned int id, lun;
- fc_block_scsi_eh(cmd);
-
id = cmd->device->id;
lun = cmd->device->lun;
if (!fcport)
return ret;
+ ret = fc_block_scsi_eh(cmd);
+ if (ret != 0)
+ return ret;
+ ret = FAILED;
+
qla_printk(KERN_INFO, vha->hw,
"scsi(%ld:%d:%d): BUS RESET ISSUED.\n", vha->host_no, id, lun);
unsigned int id, lun;
scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
- fc_block_scsi_eh(cmd);
-
id = cmd->device->id;
lun = cmd->device->lun;
if (!fcport)
return ret;
+ ret = fc_block_scsi_eh(cmd);
+ if (ret != 0)
+ return ret;
+ ret = FAILED;
+
qla_printk(KERN_INFO, ha,
"scsi(%ld:%d:%d): ADAPTER RESET ISSUED.\n", vha->host_no, id, lun);
ha->flags.eeh_busy = 1;
/* For ISP82XX complete any pending mailbox cmd */
if (IS_QLA82XX(ha)) {
- ha->flags.fw_hung = 1;
+ ha->flags.isp82xx_fw_hung = 1;
if (ha->flags.mbox_busy) {
ha->flags.mbox_int = 1;
DEBUG2(qla_printk(KERN_ERR, ha,
qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
QLA82XX_DEV_READY);
qla82xx_idc_unlock(ha);
- ha->flags.fw_hung = 0;
+ ha->flags.isp82xx_fw_hung = 0;
rval = qla82xx_restart_isp(base_vha);
qla82xx_idc_lock(ha);
/* Clear driver state register */
"This devfn is not reset owner = 0x%x\n", ha->pdev->devfn));
if ((qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE) ==
QLA82XX_DEV_READY)) {
- ha->flags.fw_hung = 0;
+ ha->flags.isp82xx_fw_hung = 0;
rval = qla82xx_restart_isp(base_vha);
qla82xx_idc_lock(ha);
qla82xx_set_drv_active(base_vha);
/*
* Driver version
*/
-#define QLA2XXX_VERSION "8.03.05-k0"
+#define QLA2XXX_VERSION "8.03.07.00"
#define QLA_DRIVER_MAJOR_VER 8
#define QLA_DRIVER_MINOR_VER 3
-#define QLA_DRIVER_PATCH_VER 5
+#define QLA_DRIVER_PATCH_VER 7
#define QLA_DRIVER_BETA_VER 0
/* With these defaults, this driver will make 1 host with 1 target
* (id 0) containing 1 logical unit (lun 0). That is 1 device.
*/
+#define DEF_ATO 1
#define DEF_DELAY 1
#define DEF_DEV_SIZE_MB 8
-#define DEF_EVERY_NTH 0
-#define DEF_NUM_PARTS 0
-#define DEF_OPTS 0
-#define DEF_SCSI_LEVEL 5 /* INQUIRY, byte2 [5->SPC-3] */
-#define DEF_PTYPE 0
+#define DEF_DIF 0
+#define DEF_DIX 0
#define DEF_D_SENSE 0
-#define DEF_NO_LUN_0 0
-#define DEF_VIRTUAL_GB 0
+#define DEF_EVERY_NTH 0
#define DEF_FAKE_RW 0
-#define DEF_VPD_USE_HOSTNO 1
-#define DEF_SECTOR_SIZE 512
-#define DEF_DIX 0
-#define DEF_DIF 0
#define DEF_GUARD 0
-#define DEF_ATO 1
-#define DEF_PHYSBLK_EXP 0
+#define DEF_LBPU 0
+#define DEF_LBPWS 0
+#define DEF_LBPWS10 0
#define DEF_LOWEST_ALIGNED 0
+#define DEF_NO_LUN_0 0
+#define DEF_NUM_PARTS 0
+#define DEF_OPTS 0
#define DEF_OPT_BLKS 64
+#define DEF_PHYSBLK_EXP 0
+#define DEF_PTYPE 0
+#define DEF_SCSI_LEVEL 5 /* INQUIRY, byte2 [5->SPC-3] */
+#define DEF_SECTOR_SIZE 512
+#define DEF_UNMAP_ALIGNMENT 0
+#define DEF_UNMAP_GRANULARITY 1
#define DEF_UNMAP_MAX_BLOCKS 0xFFFFFFFF
#define DEF_UNMAP_MAX_DESC 256
-#define DEF_UNMAP_GRANULARITY 1
-#define DEF_UNMAP_ALIGNMENT 0
-#define DEF_TPWS 0
-#define DEF_TPU 0
+#define DEF_VIRTUAL_GB 0
+#define DEF_VPD_USE_HOSTNO 1
+#define DEF_WRITESAME_LENGTH 0xFFFF
/* bit mask values for scsi_debug_opts */
#define SCSI_DEBUG_OPT_NOISE 1
/* when 1==SCSI_DEBUG_OPT_MEDIUM_ERR, a medium error is simulated at this
* sector on read commands: */
#define OPT_MEDIUM_ERR_ADDR 0x1234 /* that's sector 4660 in decimal */
+#define OPT_MEDIUM_ERR_NUM 10 /* number of consecutive medium errs */
/* If REPORT LUNS has luns >= 256 it can choose "flat space" (value 1)
* or "peripheral device" addressing (value 0) */
#define SCSI_DEBUG_CANQUEUE 255
static int scsi_debug_add_host = DEF_NUM_HOST;
+static int scsi_debug_ato = DEF_ATO;
static int scsi_debug_delay = DEF_DELAY;
static int scsi_debug_dev_size_mb = DEF_DEV_SIZE_MB;
+static int scsi_debug_dif = DEF_DIF;
+static int scsi_debug_dix = DEF_DIX;
+static int scsi_debug_dsense = DEF_D_SENSE;
static int scsi_debug_every_nth = DEF_EVERY_NTH;
+static int scsi_debug_fake_rw = DEF_FAKE_RW;
+static int scsi_debug_guard = DEF_GUARD;
+static int scsi_debug_lowest_aligned = DEF_LOWEST_ALIGNED;
static int scsi_debug_max_luns = DEF_MAX_LUNS;
static int scsi_debug_max_queue = SCSI_DEBUG_CANQUEUE;
-static int scsi_debug_num_parts = DEF_NUM_PARTS;
+static int scsi_debug_no_lun_0 = DEF_NO_LUN_0;
static int scsi_debug_no_uld = 0;
+static int scsi_debug_num_parts = DEF_NUM_PARTS;
static int scsi_debug_num_tgts = DEF_NUM_TGTS; /* targets per host */
+static int scsi_debug_opt_blks = DEF_OPT_BLKS;
static int scsi_debug_opts = DEF_OPTS;
-static int scsi_debug_scsi_level = DEF_SCSI_LEVEL;
+static int scsi_debug_physblk_exp = DEF_PHYSBLK_EXP;
static int scsi_debug_ptype = DEF_PTYPE; /* SCSI peripheral type (0==disk) */
-static int scsi_debug_dsense = DEF_D_SENSE;
-static int scsi_debug_no_lun_0 = DEF_NO_LUN_0;
+static int scsi_debug_scsi_level = DEF_SCSI_LEVEL;
+static int scsi_debug_sector_size = DEF_SECTOR_SIZE;
static int scsi_debug_virtual_gb = DEF_VIRTUAL_GB;
-static int scsi_debug_fake_rw = DEF_FAKE_RW;
static int scsi_debug_vpd_use_hostno = DEF_VPD_USE_HOSTNO;
-static int scsi_debug_sector_size = DEF_SECTOR_SIZE;
-static int scsi_debug_dix = DEF_DIX;
-static int scsi_debug_dif = DEF_DIF;
-static int scsi_debug_guard = DEF_GUARD;
-static int scsi_debug_ato = DEF_ATO;
-static int scsi_debug_physblk_exp = DEF_PHYSBLK_EXP;
-static int scsi_debug_lowest_aligned = DEF_LOWEST_ALIGNED;
-static int scsi_debug_opt_blks = DEF_OPT_BLKS;
-static unsigned int scsi_debug_unmap_max_desc = DEF_UNMAP_MAX_DESC;
-static unsigned int scsi_debug_unmap_max_blocks = DEF_UNMAP_MAX_BLOCKS;
-static unsigned int scsi_debug_unmap_granularity = DEF_UNMAP_GRANULARITY;
+static unsigned int scsi_debug_lbpu = DEF_LBPU;
+static unsigned int scsi_debug_lbpws = DEF_LBPWS;
+static unsigned int scsi_debug_lbpws10 = DEF_LBPWS10;
static unsigned int scsi_debug_unmap_alignment = DEF_UNMAP_ALIGNMENT;
-static unsigned int scsi_debug_tpws = DEF_TPWS;
-static unsigned int scsi_debug_tpu = DEF_TPU;
+static unsigned int scsi_debug_unmap_granularity = DEF_UNMAP_GRANULARITY;
+static unsigned int scsi_debug_unmap_max_blocks = DEF_UNMAP_MAX_BLOCKS;
+static unsigned int scsi_debug_unmap_max_desc = DEF_UNMAP_MAX_DESC;
+static unsigned int scsi_debug_write_same_length = DEF_WRITESAME_LENGTH;
static int scsi_debug_cmnd_count = 0;
#define SCSI_DEBUG_MAX_CMD_LEN 32
+static unsigned int scsi_debug_lbp(void)
+{
+ return scsi_debug_lbpu | scsi_debug_lbpws | scsi_debug_lbpws10;
+}
+
struct sdebug_dev_info {
struct list_head dev_list;
unsigned char sense_buff[SDEBUG_SENSE_LEN]; /* weak nexus */
/* Optimal Transfer Length */
put_unaligned_be32(scsi_debug_opt_blks, &arr[8]);
- if (scsi_debug_tpu) {
+ if (scsi_debug_lbpu) {
/* Maximum Unmap LBA Count */
put_unaligned_be32(scsi_debug_unmap_max_blocks, &arr[16]);
/* Optimal Unmap Granularity */
put_unaligned_be32(scsi_debug_unmap_granularity, &arr[24]);
- return 0x3c; /* Mandatory page length for thin provisioning */
+ /* Maximum WRITE SAME Length */
+ put_unaligned_be64(scsi_debug_write_same_length, &arr[32]);
+
+ return 0x3c; /* Mandatory page length for Logical Block Provisioning */
return sizeof(vpdb0_data);
}
memset(arr, 0, 0x8);
arr[0] = 0; /* threshold exponent */
- if (scsi_debug_tpu)
+ if (scsi_debug_lbpu)
arr[1] = 1 << 7;
- if (scsi_debug_tpws)
+ if (scsi_debug_lbpws)
arr[1] |= 1 << 6;
+ if (scsi_debug_lbpws10)
+ arr[1] |= 1 << 5;
+
return 0x8;
}
arr[n++] = 0x89; /* ATA information */
arr[n++] = 0xb0; /* Block limits (SBC) */
arr[n++] = 0xb1; /* Block characteristics (SBC) */
- arr[n++] = 0xb2; /* Thin provisioning (SBC) */
+ if (scsi_debug_lbp()) /* Logical Block Prov. (SBC) */
+ arr[n++] = 0xb2;
arr[3] = n - 4; /* number of supported VPD pages */
} else if (0x80 == cmd[2]) { /* unit serial number */
arr[1] = cmd[2]; /*sanity */
} else if (0xb1 == cmd[2]) { /* Block characteristics (SBC) */
arr[1] = cmd[2]; /*sanity */
arr[3] = inquiry_evpd_b1(&arr[4]);
- } else if (0xb2 == cmd[2]) { /* Thin provisioning (SBC) */
+ } else if (0xb2 == cmd[2]) { /* Logical Block Prov. (SBC) */
arr[1] = cmd[2]; /*sanity */
arr[3] = inquiry_evpd_b2(&arr[4]);
} else {
arr[13] = scsi_debug_physblk_exp & 0xf;
arr[14] = (scsi_debug_lowest_aligned >> 8) & 0x3f;
- if (scsi_debug_tpu || scsi_debug_tpws)
- arr[14] |= 0x80; /* TPE */
+ if (scsi_debug_lbp())
+ arr[14] |= 0x80; /* LBPME */
arr[15] = scsi_debug_lowest_aligned & 0xff;
return ret;
if ((SCSI_DEBUG_OPT_MEDIUM_ERR & scsi_debug_opts) &&
- (lba <= OPT_MEDIUM_ERR_ADDR) &&
+ (lba <= (OPT_MEDIUM_ERR_ADDR + OPT_MEDIUM_ERR_NUM - 1)) &&
((lba + num) > OPT_MEDIUM_ERR_ADDR)) {
/* claim unrecoverable read error */
- mk_sense_buffer(devip, MEDIUM_ERROR, UNRECOVERED_READ_ERR,
- 0);
+ mk_sense_buffer(devip, MEDIUM_ERROR, UNRECOVERED_READ_ERR, 0);
/* set info field and valid bit for fixed descriptor */
if (0x70 == (devip->sense_buff[0] & 0x7f)) {
devip->sense_buff[0] |= 0x80; /* Valid bit */
- ret = OPT_MEDIUM_ERR_ADDR;
+ ret = (lba < OPT_MEDIUM_ERR_ADDR)
+ ? OPT_MEDIUM_ERR_ADDR : (int)lba;
devip->sense_buff[3] = (ret >> 24) & 0xff;
devip->sense_buff[4] = (ret >> 16) & 0xff;
devip->sense_buff[5] = (ret >> 8) & 0xff;
if (ret)
return ret;
+ if (num > scsi_debug_write_same_length) {
+ mk_sense_buffer(devip, ILLEGAL_REQUEST, INVALID_FIELD_IN_CDB,
+ 0);
+ return check_condition_result;
+ }
+
write_lock_irqsave(&atomic_rw, iflags);
if (unmap && scsi_debug_unmap_granularity) {
/sys/bus/pseudo/drivers/scsi_debug directory is changed.
*/
module_param_named(add_host, scsi_debug_add_host, int, S_IRUGO | S_IWUSR);
+module_param_named(ato, scsi_debug_ato, int, S_IRUGO);
module_param_named(delay, scsi_debug_delay, int, S_IRUGO | S_IWUSR);
module_param_named(dev_size_mb, scsi_debug_dev_size_mb, int, S_IRUGO);
+module_param_named(dif, scsi_debug_dif, int, S_IRUGO);
+module_param_named(dix, scsi_debug_dix, int, S_IRUGO);
module_param_named(dsense, scsi_debug_dsense, int, S_IRUGO | S_IWUSR);
module_param_named(every_nth, scsi_debug_every_nth, int, S_IRUGO | S_IWUSR);
module_param_named(fake_rw, scsi_debug_fake_rw, int, S_IRUGO | S_IWUSR);
+module_param_named(guard, scsi_debug_guard, int, S_IRUGO);
+module_param_named(lbpu, scsi_debug_lbpu, int, S_IRUGO);
+module_param_named(lbpws, scsi_debug_lbpws, int, S_IRUGO);
+module_param_named(lbpws10, scsi_debug_lbpws10, int, S_IRUGO);
+module_param_named(lowest_aligned, scsi_debug_lowest_aligned, int, S_IRUGO);
module_param_named(max_luns, scsi_debug_max_luns, int, S_IRUGO | S_IWUSR);
module_param_named(max_queue, scsi_debug_max_queue, int, S_IRUGO | S_IWUSR);
module_param_named(no_lun_0, scsi_debug_no_lun_0, int, S_IRUGO | S_IWUSR);
module_param_named(no_uld, scsi_debug_no_uld, int, S_IRUGO);
module_param_named(num_parts, scsi_debug_num_parts, int, S_IRUGO);
module_param_named(num_tgts, scsi_debug_num_tgts, int, S_IRUGO | S_IWUSR);
+module_param_named(opt_blks, scsi_debug_opt_blks, int, S_IRUGO);
module_param_named(opts, scsi_debug_opts, int, S_IRUGO | S_IWUSR);
+module_param_named(physblk_exp, scsi_debug_physblk_exp, int, S_IRUGO);
module_param_named(ptype, scsi_debug_ptype, int, S_IRUGO | S_IWUSR);
module_param_named(scsi_level, scsi_debug_scsi_level, int, S_IRUGO);
-module_param_named(virtual_gb, scsi_debug_virtual_gb, int, S_IRUGO | S_IWUSR);
-module_param_named(vpd_use_hostno, scsi_debug_vpd_use_hostno, int,
- S_IRUGO | S_IWUSR);
module_param_named(sector_size, scsi_debug_sector_size, int, S_IRUGO);
-module_param_named(dix, scsi_debug_dix, int, S_IRUGO);
-module_param_named(dif, scsi_debug_dif, int, S_IRUGO);
-module_param_named(guard, scsi_debug_guard, int, S_IRUGO);
-module_param_named(ato, scsi_debug_ato, int, S_IRUGO);
-module_param_named(physblk_exp, scsi_debug_physblk_exp, int, S_IRUGO);
-module_param_named(opt_blks, scsi_debug_opt_blks, int, S_IRUGO);
-module_param_named(lowest_aligned, scsi_debug_lowest_aligned, int, S_IRUGO);
+module_param_named(unmap_alignment, scsi_debug_unmap_alignment, int, S_IRUGO);
+module_param_named(unmap_granularity, scsi_debug_unmap_granularity, int, S_IRUGO);
module_param_named(unmap_max_blocks, scsi_debug_unmap_max_blocks, int, S_IRUGO);
module_param_named(unmap_max_desc, scsi_debug_unmap_max_desc, int, S_IRUGO);
-module_param_named(unmap_granularity, scsi_debug_unmap_granularity, int, S_IRUGO);
-module_param_named(unmap_alignment, scsi_debug_unmap_alignment, int, S_IRUGO);
-module_param_named(tpu, scsi_debug_tpu, int, S_IRUGO);
-module_param_named(tpws, scsi_debug_tpws, int, S_IRUGO);
+module_param_named(virtual_gb, scsi_debug_virtual_gb, int, S_IRUGO | S_IWUSR);
+module_param_named(vpd_use_hostno, scsi_debug_vpd_use_hostno, int,
+ S_IRUGO | S_IWUSR);
+module_param_named(write_same_length, scsi_debug_write_same_length, int,
+ S_IRUGO | S_IWUSR);
MODULE_AUTHOR("Eric Youngdale + Douglas Gilbert");
MODULE_DESCRIPTION("SCSI debug adapter driver");
MODULE_VERSION(SCSI_DEBUG_VERSION);
MODULE_PARM_DESC(add_host, "0..127 hosts allowed(def=1)");
+MODULE_PARM_DESC(ato, "application tag ownership: 0=disk 1=host (def=1)");
MODULE_PARM_DESC(delay, "# of jiffies to delay response(def=1)");
MODULE_PARM_DESC(dev_size_mb, "size in MB of ram shared by devs(def=8)");
+MODULE_PARM_DESC(dif, "data integrity field type: 0-3 (def=0)");
+MODULE_PARM_DESC(dix, "data integrity extensions mask (def=0)");
MODULE_PARM_DESC(dsense, "use descriptor sense format(def=0 -> fixed)");
MODULE_PARM_DESC(every_nth, "timeout every nth command(def=0)");
MODULE_PARM_DESC(fake_rw, "fake reads/writes instead of copying (def=0)");
+MODULE_PARM_DESC(guard, "protection checksum: 0=crc, 1=ip (def=0)");
+MODULE_PARM_DESC(lbpu, "enable LBP, support UNMAP command (def=0)");
+MODULE_PARM_DESC(lbpws, "enable LBP, support WRITE SAME(16) with UNMAP bit (def=0)");
+MODULE_PARM_DESC(lbpws10, "enable LBP, support WRITE SAME(10) with UNMAP bit (def=0)");
+MODULE_PARM_DESC(lowest_aligned, "lowest aligned lba (def=0)");
MODULE_PARM_DESC(max_luns, "number of LUNs per target to simulate(def=1)");
MODULE_PARM_DESC(max_queue, "max number of queued commands (1 to 255(def))");
MODULE_PARM_DESC(no_lun_0, "no LU number 0 (def=0 -> have lun 0)");
MODULE_PARM_DESC(no_uld, "stop ULD (e.g. sd driver) attaching (def=0))");
MODULE_PARM_DESC(num_parts, "number of partitions(def=0)");
MODULE_PARM_DESC(num_tgts, "number of targets per host to simulate(def=1)");
+MODULE_PARM_DESC(opt_blks, "optimal transfer length in block (def=64)");
MODULE_PARM_DESC(opts, "1->noise, 2->medium_err, 4->timeout, 8->recovered_err... (def=0)");
+MODULE_PARM_DESC(physblk_exp, "physical block exponent (def=0)");
MODULE_PARM_DESC(ptype, "SCSI peripheral type(def=0[disk])");
MODULE_PARM_DESC(scsi_level, "SCSI level to simulate(def=5[SPC-3])");
-MODULE_PARM_DESC(virtual_gb, "virtual gigabyte size (def=0 -> use dev_size_mb)");
-MODULE_PARM_DESC(vpd_use_hostno, "0 -> dev ids ignore hostno (def=1 -> unique dev ids)");
MODULE_PARM_DESC(sector_size, "logical block size in bytes (def=512)");
-MODULE_PARM_DESC(physblk_exp, "physical block exponent (def=0)");
-MODULE_PARM_DESC(opt_blks, "optimal transfer length in block (def=64)");
-MODULE_PARM_DESC(lowest_aligned, "lowest aligned lba (def=0)");
-MODULE_PARM_DESC(dix, "data integrity extensions mask (def=0)");
-MODULE_PARM_DESC(dif, "data integrity field type: 0-3 (def=0)");
-MODULE_PARM_DESC(guard, "protection checksum: 0=crc, 1=ip (def=0)");
-MODULE_PARM_DESC(ato, "application tag ownership: 0=disk 1=host (def=1)");
+MODULE_PARM_DESC(unmap_alignment, "lowest aligned thin provisioning lba (def=0)");
+MODULE_PARM_DESC(unmap_granularity, "thin provisioning granularity in blocks (def=1)");
MODULE_PARM_DESC(unmap_max_blocks, "max # of blocks can be unmapped in one cmd (def=0xffffffff)");
MODULE_PARM_DESC(unmap_max_desc, "max # of ranges that can be unmapped in one cmd (def=256)");
-MODULE_PARM_DESC(unmap_granularity, "thin provisioning granularity in blocks (def=1)");
-MODULE_PARM_DESC(unmap_alignment, "lowest aligned thin provisioning lba (def=0)");
-MODULE_PARM_DESC(tpu, "enable TP, support UNMAP command (def=0)");
-MODULE_PARM_DESC(tpws, "enable TP, support WRITE SAME(16) with UNMAP bit (def=0)");
+MODULE_PARM_DESC(virtual_gb, "virtual gigabyte size (def=0 -> use dev_size_mb)");
+MODULE_PARM_DESC(vpd_use_hostno, "0 -> dev ids ignore hostno (def=1 -> unique dev ids)");
+MODULE_PARM_DESC(write_same_length, "Maximum blocks per WRITE SAME cmd (def=0xffff)");
static char sdebug_info[256];
{
ssize_t count;
- if (scsi_debug_tpu == 0 && scsi_debug_tpws == 0)
+ if (!scsi_debug_lbp())
return scnprintf(buf, PAGE_SIZE, "0-%u\n",
sdebug_store_sectors);
memset(dif_storep, 0xff, dif_size);
}
- /* Thin Provisioning */
- if (scsi_debug_tpu || scsi_debug_tpws) {
+ /* Logical Block Provisioning */
+ if (scsi_debug_lbp()) {
unsigned int map_bytes;
scsi_debug_unmap_max_blocks =
errsts = resp_readcap16(SCpnt, devip);
else if (cmd[1] == SAI_GET_LBA_STATUS) {
- if (scsi_debug_tpu == 0 && scsi_debug_tpws == 0) {
+ if (scsi_debug_lbp() == 0) {
mk_sense_buffer(devip, ILLEGAL_REQUEST,
INVALID_COMMAND_OPCODE, 0);
errsts = check_condition_result;
}
break;
case WRITE_SAME_16:
+ case WRITE_SAME:
if (cmd[1] & 0x8) {
- if (scsi_debug_tpws == 0) {
+ if ((*cmd == WRITE_SAME_16 && scsi_debug_lbpws == 0) ||
+ (*cmd == WRITE_SAME && scsi_debug_lbpws10 == 0)) {
mk_sense_buffer(devip, ILLEGAL_REQUEST,
INVALID_FIELD_IN_CDB, 0);
errsts = check_condition_result;
}
if (errsts)
break;
- /* fall through */
- case WRITE_SAME:
errsts = check_readiness(SCpnt, 0, devip);
if (errsts)
break;
if (errsts)
break;
- if (scsi_debug_unmap_max_desc == 0 || scsi_debug_tpu == 0) {
+ if (scsi_debug_unmap_max_desc == 0 || scsi_debug_lbpu == 0) {
mk_sense_buffer(devip, ILLEGAL_REQUEST,
INVALID_COMMAND_OPCODE, 0);
errsts = check_condition_result;
}
EXPORT_SYMBOL(scsi_dev_info_list_add_keyed);
+/**
+ * scsi_dev_info_list_del_keyed - remove one dev_info list entry.
+ * @vendor: vendor string
+ * @model: model (product) string
+ * @key: specify list to use
+ *
+ * Description:
+ * Remove and destroy one dev_info entry for @vendor, @model
+ * in list specified by @key.
+ *
+ * Returns: 0 OK, -error on failure.
+ **/
+int scsi_dev_info_list_del_keyed(char *vendor, char *model, int key)
+{
+ struct scsi_dev_info_list *devinfo, *found = NULL;
+ struct scsi_dev_info_list_table *devinfo_table =
+ scsi_devinfo_lookup_by_key(key);
+
+ if (IS_ERR(devinfo_table))
+ return PTR_ERR(devinfo_table);
+
+ list_for_each_entry(devinfo, &devinfo_table->scsi_dev_info_list,
+ dev_info_list) {
+ if (devinfo->compatible) {
+ /*
+ * Behave like the older version of get_device_flags.
+ */
+ size_t max;
+ /*
+ * XXX why skip leading spaces? If an odd INQUIRY
+ * value, that should have been part of the
+ * scsi_static_device_list[] entry, such as " FOO"
+ * rather than "FOO". Since this code is already
+ * here, and we don't know what device it is
+ * trying to work with, leave it as-is.
+ */
+ max = 8; /* max length of vendor */
+ while ((max > 0) && *vendor == ' ') {
+ max--;
+ vendor++;
+ }
+ /*
+ * XXX removing the following strlen() would be
+ * good, using it means that for a an entry not in
+ * the list, we scan every byte of every vendor
+ * listed in scsi_static_device_list[], and never match
+ * a single one (and still have to compare at
+ * least the first byte of each vendor).
+ */
+ if (memcmp(devinfo->vendor, vendor,
+ min(max, strlen(devinfo->vendor))))
+ continue;
+ /*
+ * Skip spaces again.
+ */
+ max = 16; /* max length of model */
+ while ((max > 0) && *model == ' ') {
+ max--;
+ model++;
+ }
+ if (memcmp(devinfo->model, model,
+ min(max, strlen(devinfo->model))))
+ continue;
+ found = devinfo;
+ } else {
+ if (!memcmp(devinfo->vendor, vendor,
+ sizeof(devinfo->vendor)) &&
+ !memcmp(devinfo->model, model,
+ sizeof(devinfo->model)))
+ found = devinfo;
+ }
+ if (found)
+ break;
+ }
+
+ if (found) {
+ list_del(&found->dev_info_list);
+ kfree(found);
+ return 0;
+ }
+
+ return -ENOENT;
+}
+EXPORT_SYMBOL(scsi_dev_info_list_del_keyed);
+
/**
* scsi_dev_info_list_add_str - parse dev_list and add to the scsi_dev_info_list.
* @dev_list: string of device flags to add
* @scmd: Cmd to have sense checked.
*
* Return value:
- * SUCCESS or FAILED or NEEDS_RETRY
+ * SUCCESS or FAILED or NEEDS_RETRY or TARGET_ERROR
*
* Notes:
* When a deferred error is detected the current command has
*/
return SUCCESS;
- /* these three are not supported */
+ /* these are not supported */
case COPY_ABORTED:
case VOLUME_OVERFLOW:
case MISCOMPARE:
- return SUCCESS;
+ case BLANK_CHECK:
+ case DATA_PROTECT:
+ return TARGET_ERROR;
case MEDIUM_ERROR:
if (sshdr.asc == 0x11 || /* UNRECOVERED READ ERR */
sshdr.asc == 0x13 || /* AMNF DATA FIELD */
sshdr.asc == 0x14) { /* RECORD NOT FOUND */
- return SUCCESS;
+ return TARGET_ERROR;
}
return NEEDS_RETRY;
if (scmd->device->retry_hwerror)
return ADD_TO_MLQUEUE;
else
- return SUCCESS;
+ return TARGET_ERROR;
case ILLEGAL_REQUEST:
- case BLANK_CHECK:
- case DATA_PROTECT:
default:
return SUCCESS;
}
case SUCCESS:
case NEEDS_RETRY:
case FAILED:
+ case TARGET_ERROR:
break;
case ADD_TO_MLQUEUE:
rtn = NEEDS_RETRY;
rtn = scsi_check_sense(scmd);
if (rtn == NEEDS_RETRY)
goto maybe_retry;
+ else if (rtn == TARGET_ERROR) {
+ /*
+ * Need to modify host byte to signal a
+ * permanent target failure
+ */
+ scmd->result |= (DID_TARGET_FAILURE << 16);
+ rtn = SUCCESS;
+ }
/* if rtn == FAILED, we have no sense information;
* returning FAILED will wake the error handler thread
* to collect the sense and redo the decide
case RESERVATION_CONFLICT:
sdev_printk(KERN_INFO, scmd->device,
"reservation conflict\n");
+ scmd->result |= (DID_NEXUS_FAILURE << 16);
return SUCCESS; /* causes immediate i/o error */
default:
return FAILED;
}
EXPORT_SYMBOL(scsi_release_buffers);
+static int __scsi_error_from_host_byte(struct scsi_cmnd *cmd, int result)
+{
+ int error = 0;
+
+ switch(host_byte(result)) {
+ case DID_TRANSPORT_FAILFAST:
+ error = -ENOLINK;
+ break;
+ case DID_TARGET_FAILURE:
+ cmd->result |= (DID_OK << 16);
+ error = -EREMOTEIO;
+ break;
+ case DID_NEXUS_FAILURE:
+ cmd->result |= (DID_OK << 16);
+ error = -EBADE;
+ break;
+ default:
+ error = -EIO;
+ break;
+ }
+
+ return error;
+}
+
/*
* Function: scsi_io_completion()
*
req->sense_len = len;
}
if (!sense_deferred)
- error = -EIO;
+ error = __scsi_error_from_host_byte(cmd, result);
}
req->resid_len = scsi_get_resid(cmd);
if (scsi_end_request(cmd, error, good_bytes, result == 0) == NULL)
return;
- error = -EIO;
+ error = __scsi_error_from_host_byte(cmd, result);
if (host_byte(result) == DID_RESET) {
/* Third party bus reset or reset for error recovery
description = "Host Data Integrity Failure";
action = ACTION_FAIL;
error = -EILSEQ;
+ /* INVALID COMMAND OPCODE or INVALID FIELD IN CDB */
+ } else if ((sshdr.asc == 0x20 || sshdr.asc == 0x24) &&
+ (cmd->cmnd[0] == UNMAP ||
+ cmd->cmnd[0] == WRITE_SAME_16 ||
+ cmd->cmnd[0] == WRITE_SAME)) {
+ description = "Discard failure";
+ action = ACTION_FAIL;
} else
action = ACTION_FAIL;
break;
cmd->request = req;
cmd->cmnd = req->cmd;
+ cmd->prot_op = SCSI_PROT_NORMAL;
return cmd;
}
enum {
SCSI_DEVINFO_GLOBAL = 0,
SCSI_DEVINFO_SPI,
+ SCSI_DEVINFO_DH,
};
extern int scsi_get_device_flags(struct scsi_device *sdev,
extern int scsi_dev_info_list_add_keyed(int compatible, char *vendor,
char *model, char *strflags,
int flags, int key);
+extern int scsi_dev_info_list_del_keyed(char *vendor, char *model, int key);
extern int scsi_dev_info_add_list(int key, const char *name);
extern int scsi_dev_info_remove_list(int key);
if (dd_size)
conn->dd_data = &conn[1];
+ mutex_init(&conn->ep_mutex);
INIT_LIST_HEAD(&conn->conn_list);
conn->transport = transport;
conn->cid = cid;
spin_lock_irqsave(&connlock, flags);
list_add(&conn->conn_list, &connlist);
- conn->active = 1;
spin_unlock_irqrestore(&connlock, flags);
ISCSI_DBG_TRANS_CONN(conn, "Completed conn creation\n");
unsigned long flags;
spin_lock_irqsave(&connlock, flags);
- conn->active = 0;
list_del(&conn->conn_list);
spin_unlock_irqrestore(&connlock, flags);
return err;
}
+static int iscsi_if_ep_disconnect(struct iscsi_transport *transport,
+ u64 ep_handle)
+{
+ struct iscsi_cls_conn *conn;
+ struct iscsi_endpoint *ep;
+
+ if (!transport->ep_disconnect)
+ return -EINVAL;
+
+ ep = iscsi_lookup_endpoint(ep_handle);
+ if (!ep)
+ return -EINVAL;
+ conn = ep->conn;
+ if (conn) {
+ mutex_lock(&conn->ep_mutex);
+ conn->ep = NULL;
+ mutex_unlock(&conn->ep_mutex);
+ }
+
+ transport->ep_disconnect(ep);
+ return 0;
+}
+
static int
iscsi_if_transport_ep(struct iscsi_transport *transport,
struct iscsi_uevent *ev, int msg_type)
ev->u.ep_poll.timeout_ms);
break;
case ISCSI_UEVENT_TRANSPORT_EP_DISCONNECT:
- if (!transport->ep_disconnect)
- return -EINVAL;
-
- ep = iscsi_lookup_endpoint(ev->u.ep_disconnect.ep_handle);
- if (!ep)
- return -EINVAL;
-
- transport->ep_disconnect(ep);
+ rc = iscsi_if_ep_disconnect(transport,
+ ev->u.ep_disconnect.ep_handle);
break;
}
return rc;
session = iscsi_session_lookup(ev->u.b_conn.sid);
conn = iscsi_conn_lookup(ev->u.b_conn.sid, ev->u.b_conn.cid);
- if (session && conn)
- ev->r.retcode = transport->bind_conn(session, conn,
- ev->u.b_conn.transport_eph,
- ev->u.b_conn.is_leading);
- else
+ if (conn && conn->ep)
+ iscsi_if_ep_disconnect(transport, conn->ep->id);
+
+ if (!session || !conn) {
err = -EINVAL;
+ break;
+ }
+
+ ev->r.retcode = transport->bind_conn(session, conn,
+ ev->u.b_conn.transport_eph,
+ ev->u.b_conn.is_leading);
+ if (ev->r.retcode || !transport->ep_connect)
+ break;
+
+ ep = iscsi_lookup_endpoint(ev->u.b_conn.transport_eph);
+ if (ep) {
+ ep->conn = conn;
+
+ mutex_lock(&conn->ep_mutex);
+ conn->ep = ep;
+ mutex_unlock(&conn->ep_mutex);
+ } else
+ iscsi_cls_conn_printk(KERN_ERR, conn,
+ "Could not set ep conn "
+ "binding\n");
break;
case ISCSI_UEVENT_SET_PARAM:
err = iscsi_set_param(transport, ev);
iscsi_conn_attr(ifmarker, ISCSI_PARAM_IFMARKER_EN);
iscsi_conn_attr(ofmarker, ISCSI_PARAM_OFMARKER_EN);
iscsi_conn_attr(persistent_port, ISCSI_PARAM_PERSISTENT_PORT);
-iscsi_conn_attr(port, ISCSI_PARAM_CONN_PORT);
iscsi_conn_attr(exp_statsn, ISCSI_PARAM_EXP_STATSN);
iscsi_conn_attr(persistent_address, ISCSI_PARAM_PERSISTENT_ADDRESS);
-iscsi_conn_attr(address, ISCSI_PARAM_CONN_ADDRESS);
iscsi_conn_attr(ping_tmo, ISCSI_PARAM_PING_TMO);
iscsi_conn_attr(recv_tmo, ISCSI_PARAM_RECV_TMO);
+#define iscsi_conn_ep_attr_show(param) \
+static ssize_t show_conn_ep_param_##param(struct device *dev, \
+ struct device_attribute *attr,\
+ char *buf) \
+{ \
+ struct iscsi_cls_conn *conn = iscsi_dev_to_conn(dev->parent); \
+ struct iscsi_transport *t = conn->transport; \
+ struct iscsi_endpoint *ep; \
+ ssize_t rc; \
+ \
+ /* \
+ * Need to make sure ep_disconnect does not free the LLD's \
+ * interconnect resources while we are trying to read them. \
+ */ \
+ mutex_lock(&conn->ep_mutex); \
+ ep = conn->ep; \
+ if (!ep && t->ep_connect) { \
+ mutex_unlock(&conn->ep_mutex); \
+ return -ENOTCONN; \
+ } \
+ \
+ if (ep) \
+ rc = t->get_ep_param(ep, param, buf); \
+ else \
+ rc = t->get_conn_param(conn, param, buf); \
+ mutex_unlock(&conn->ep_mutex); \
+ return rc; \
+}
+
+#define iscsi_conn_ep_attr(field, param) \
+ iscsi_conn_ep_attr_show(param) \
+static ISCSI_CLASS_ATTR(conn, field, S_IRUGO, \
+ show_conn_ep_param_##param, NULL);
+
+iscsi_conn_ep_attr(address, ISCSI_PARAM_CONN_ADDRESS);
+iscsi_conn_ep_attr(port, ISCSI_PARAM_CONN_PORT);
+
/*
* iSCSI session attrs
*/
#define SD_MINORS 0
#endif
+static void sd_config_discard(struct scsi_disk *, unsigned int);
static int sd_revalidate_disk(struct gendisk *);
static void sd_unlock_native_capacity(struct gendisk *disk);
static int sd_probe(struct device *);
{
struct scsi_disk *sdkp = to_scsi_disk(dev);
- return snprintf(buf, 20, "%u\n", sdkp->thin_provisioning);
+ return snprintf(buf, 20, "%u\n", sdkp->lbpme);
+}
+
+static const char *lbp_mode[] = {
+ [SD_LBP_FULL] = "full",
+ [SD_LBP_UNMAP] = "unmap",
+ [SD_LBP_WS16] = "writesame_16",
+ [SD_LBP_WS10] = "writesame_10",
+ [SD_LBP_ZERO] = "writesame_zero",
+ [SD_LBP_DISABLE] = "disabled",
+};
+
+static ssize_t
+sd_show_provisioning_mode(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct scsi_disk *sdkp = to_scsi_disk(dev);
+
+ return snprintf(buf, 20, "%s\n", lbp_mode[sdkp->provisioning_mode]);
+}
+
+static ssize_t
+sd_store_provisioning_mode(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct scsi_disk *sdkp = to_scsi_disk(dev);
+ struct scsi_device *sdp = sdkp->device;
+
+ if (!capable(CAP_SYS_ADMIN))
+ return -EACCES;
+
+ if (sdp->type != TYPE_DISK)
+ return -EINVAL;
+
+ if (!strncmp(buf, lbp_mode[SD_LBP_UNMAP], 20))
+ sd_config_discard(sdkp, SD_LBP_UNMAP);
+ else if (!strncmp(buf, lbp_mode[SD_LBP_WS16], 20))
+ sd_config_discard(sdkp, SD_LBP_WS16);
+ else if (!strncmp(buf, lbp_mode[SD_LBP_WS10], 20))
+ sd_config_discard(sdkp, SD_LBP_WS10);
+ else if (!strncmp(buf, lbp_mode[SD_LBP_ZERO], 20))
+ sd_config_discard(sdkp, SD_LBP_ZERO);
+ else if (!strncmp(buf, lbp_mode[SD_LBP_DISABLE], 20))
+ sd_config_discard(sdkp, SD_LBP_DISABLE);
+ else
+ return -EINVAL;
+
+ return count;
}
static struct device_attribute sd_disk_attrs[] = {
__ATTR(protection_mode, S_IRUGO, sd_show_protection_mode, NULL),
__ATTR(app_tag_own, S_IRUGO, sd_show_app_tag_own, NULL),
__ATTR(thin_provisioning, S_IRUGO, sd_show_thin_provisioning, NULL),
+ __ATTR(provisioning_mode, S_IRUGO|S_IWUSR, sd_show_provisioning_mode,
+ sd_store_provisioning_mode),
__ATTR_NULL,
};
scsi_set_prot_type(scmd, dif);
}
+static void sd_config_discard(struct scsi_disk *sdkp, unsigned int mode)
+{
+ struct request_queue *q = sdkp->disk->queue;
+ unsigned int logical_block_size = sdkp->device->sector_size;
+ unsigned int max_blocks = 0;
+
+ q->limits.discard_zeroes_data = sdkp->lbprz;
+ q->limits.discard_alignment = sdkp->unmap_alignment;
+ q->limits.discard_granularity =
+ max(sdkp->physical_block_size,
+ sdkp->unmap_granularity * logical_block_size);
+
+ switch (mode) {
+
+ case SD_LBP_DISABLE:
+ q->limits.max_discard_sectors = 0;
+ queue_flag_clear_unlocked(QUEUE_FLAG_DISCARD, q);
+ return;
+
+ case SD_LBP_UNMAP:
+ max_blocks = min_not_zero(sdkp->max_unmap_blocks, 0xffffffff);
+ break;
+
+ case SD_LBP_WS16:
+ max_blocks = min_not_zero(sdkp->max_ws_blocks, 0xffffffff);
+ break;
+
+ case SD_LBP_WS10:
+ max_blocks = min_not_zero(sdkp->max_ws_blocks, (u32)0xffff);
+ break;
+
+ case SD_LBP_ZERO:
+ max_blocks = min_not_zero(sdkp->max_ws_blocks, (u32)0xffff);
+ q->limits.discard_zeroes_data = 1;
+ break;
+ }
+
+ q->limits.max_discard_sectors = max_blocks * (logical_block_size >> 9);
+ queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, q);
+
+ sdkp->provisioning_mode = mode;
+}
+
/**
* scsi_setup_discard_cmnd - unmap blocks on thinly provisioned device
* @sdp: scsi device to operate one
unsigned int nr_sectors = bio_sectors(bio);
unsigned int len;
int ret;
+ char *buf;
struct page *page;
if (sdkp->device->sector_size == 4096) {
if (!page)
return BLKPREP_DEFER;
- if (sdkp->unmap) {
- char *buf = page_address(page);
+ switch (sdkp->provisioning_mode) {
+ case SD_LBP_UNMAP:
+ buf = page_address(page);
rq->cmd_len = 10;
rq->cmd[0] = UNMAP;
put_unaligned_be32(nr_sectors, &buf[16]);
len = 24;
- } else {
+ break;
+
+ case SD_LBP_WS16:
rq->cmd_len = 16;
rq->cmd[0] = WRITE_SAME_16;
rq->cmd[1] = 0x8; /* UNMAP */
put_unaligned_be32(nr_sectors, &rq->cmd[10]);
len = sdkp->device->sector_size;
+ break;
+
+ case SD_LBP_WS10:
+ case SD_LBP_ZERO:
+ rq->cmd_len = 10;
+ rq->cmd[0] = WRITE_SAME;
+ if (sdkp->provisioning_mode == SD_LBP_WS10)
+ rq->cmd[1] = 0x8; /* UNMAP */
+ put_unaligned_be32(sector, &rq->cmd[2]);
+ put_unaligned_be16(nr_sectors, &rq->cmd[7]);
+
+ len = sdkp->device->sector_size;
+ break;
+
+ default:
+ goto out;
}
blk_add_request_payload(rq, page, len);
ret = scsi_setup_blk_pc_cmnd(sdp, rq);
rq->buffer = page_address(page);
+
+out:
if (ret != BLKPREP_OK) {
__free_page(page);
rq->buffer = NULL;
struct scsi_disk *sdkp = scsi_disk(SCpnt->request->rq_disk);
int sense_valid = 0;
int sense_deferred = 0;
+ unsigned char op = SCpnt->cmnd[0];
- if (SCpnt->request->cmd_flags & REQ_DISCARD) {
- if (!result)
- scsi_set_resid(SCpnt, 0);
- return good_bytes;
- }
+ if ((SCpnt->request->cmd_flags & REQ_DISCARD) && !result)
+ scsi_set_resid(SCpnt, 0);
if (result) {
sense_valid = scsi_command_normalize_sense(SCpnt, &sshdr);
SCpnt->result = 0;
memset(SCpnt->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
break;
- case ABORTED_COMMAND: /* DIF: Target detected corruption */
- case ILLEGAL_REQUEST: /* DIX: Host detected corruption */
- if (sshdr.asc == 0x10)
+ case ABORTED_COMMAND:
+ if (sshdr.asc == 0x10) /* DIF: Target detected corruption */
+ good_bytes = sd_completed_bytes(SCpnt);
+ break;
+ case ILLEGAL_REQUEST:
+ if (sshdr.asc == 0x10) /* DIX: Host detected corruption */
good_bytes = sd_completed_bytes(SCpnt);
+ /* INVALID COMMAND OPCODE or INVALID FIELD IN CDB */
+ if ((sshdr.asc == 0x20 || sshdr.asc == 0x24) &&
+ (op == UNMAP || op == WRITE_SAME_16 || op == WRITE_SAME))
+ sd_config_discard(sdkp, SD_LBP_DISABLE);
break;
default:
break;
sd_printk(KERN_NOTICE, sdkp,
"physical block alignment offset: %u\n", alignment);
- if (buffer[14] & 0x80) { /* TPE */
- struct request_queue *q = sdp->request_queue;
+ if (buffer[14] & 0x80) { /* LBPME */
+ sdkp->lbpme = 1;
- sdkp->thin_provisioning = 1;
- q->limits.discard_granularity = sdkp->physical_block_size;
- q->limits.max_discard_sectors = 0xffffffff;
+ if (buffer[14] & 0x40) /* LBPRZ */
+ sdkp->lbprz = 1;
- if (buffer[14] & 0x40) /* TPRZ */
- q->limits.discard_zeroes_data = 1;
-
- queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, q);
+ sd_config_discard(sdkp, SD_LBP_WS16);
}
sdkp->capacity = lba + 1;
*/
static void sd_read_block_limits(struct scsi_disk *sdkp)
{
- struct request_queue *q = sdkp->disk->queue;
unsigned int sector_sz = sdkp->device->sector_size;
const int vpd_len = 64;
unsigned char *buffer = kmalloc(vpd_len, GFP_KERNEL);
blk_queue_io_opt(sdkp->disk->queue,
get_unaligned_be32(&buffer[12]) * sector_sz);
- /* Thin provisioning enabled and page length indicates TP support */
- if (sdkp->thin_provisioning && buffer[3] == 0x3c) {
- unsigned int lba_count, desc_count, granularity;
+ if (buffer[3] == 0x3c) {
+ unsigned int lba_count, desc_count;
- lba_count = get_unaligned_be32(&buffer[20]);
- desc_count = get_unaligned_be32(&buffer[24]);
-
- if (lba_count && desc_count) {
- if (sdkp->tpvpd && !sdkp->tpu)
- sdkp->unmap = 0;
- else
- sdkp->unmap = 1;
- }
+ sdkp->max_ws_blocks =
+ (u32) min_not_zero(get_unaligned_be64(&buffer[36]),
+ (u64)0xffffffff);
- if (sdkp->tpvpd && !sdkp->tpu && !sdkp->tpws) {
- sd_printk(KERN_ERR, sdkp, "Thin provisioning is " \
- "enabled but neither TPU, nor TPWS are " \
- "set. Disabling discard!\n");
+ if (!sdkp->lbpme)
goto out;
- }
- if (lba_count)
- q->limits.max_discard_sectors =
- lba_count * sector_sz >> 9;
+ lba_count = get_unaligned_be32(&buffer[20]);
+ desc_count = get_unaligned_be32(&buffer[24]);
- granularity = get_unaligned_be32(&buffer[28]);
+ if (lba_count && desc_count)
+ sdkp->max_unmap_blocks = lba_count;
- if (granularity)
- q->limits.discard_granularity = granularity * sector_sz;
+ sdkp->unmap_granularity = get_unaligned_be32(&buffer[28]);
if (buffer[32] & 0x80)
- q->limits.discard_alignment =
+ sdkp->unmap_alignment =
get_unaligned_be32(&buffer[32]) & ~(1 << 31);
+
+ if (!sdkp->lbpvpd) { /* LBP VPD page not provided */
+
+ if (sdkp->max_unmap_blocks)
+ sd_config_discard(sdkp, SD_LBP_UNMAP);
+ else
+ sd_config_discard(sdkp, SD_LBP_WS16);
+
+ } else { /* LBP VPD page tells us what to use */
+
+ if (sdkp->lbpu && sdkp->max_unmap_blocks)
+ sd_config_discard(sdkp, SD_LBP_UNMAP);
+ else if (sdkp->lbpws)
+ sd_config_discard(sdkp, SD_LBP_WS16);
+ else if (sdkp->lbpws10)
+ sd_config_discard(sdkp, SD_LBP_WS10);
+ else
+ sd_config_discard(sdkp, SD_LBP_DISABLE);
+ }
}
out:
}
/**
- * sd_read_thin_provisioning - Query thin provisioning VPD page
+ * sd_read_block_provisioning - Query provisioning VPD page
* @disk: disk to query
*/
-static void sd_read_thin_provisioning(struct scsi_disk *sdkp)
+static void sd_read_block_provisioning(struct scsi_disk *sdkp)
{
unsigned char *buffer;
const int vpd_len = 8;
- if (sdkp->thin_provisioning == 0)
+ if (sdkp->lbpme == 0)
return;
buffer = kmalloc(vpd_len, GFP_KERNEL);
if (!buffer || scsi_get_vpd_page(sdkp->device, 0xb2, buffer, vpd_len))
goto out;
- sdkp->tpvpd = 1;
- sdkp->tpu = (buffer[5] >> 7) & 1; /* UNMAP */
- sdkp->tpws = (buffer[5] >> 6) & 1; /* WRITE SAME(16) with UNMAP */
+ sdkp->lbpvpd = 1;
+ sdkp->lbpu = (buffer[5] >> 7) & 1; /* UNMAP */
+ sdkp->lbpws = (buffer[5] >> 6) & 1; /* WRITE SAME(16) with UNMAP */
+ sdkp->lbpws10 = (buffer[5] >> 5) & 1; /* WRITE SAME(10) with UNMAP */
out:
kfree(buffer);
sd_read_capacity(sdkp, buffer);
if (sd_try_extended_inquiry(sdp)) {
- sd_read_thin_provisioning(sdkp);
+ sd_read_block_provisioning(sdkp);
sd_read_block_limits(sdkp);
sd_read_block_characteristics(sdkp);
}
SD_MEMPOOL_SIZE = 2, /* CDB pool size */
};
+enum {
+ SD_LBP_FULL = 0, /* Full logical block provisioning */
+ SD_LBP_UNMAP, /* Use UNMAP command */
+ SD_LBP_WS16, /* Use WRITE SAME(16) with UNMAP bit */
+ SD_LBP_WS10, /* Use WRITE SAME(10) with UNMAP bit */
+ SD_LBP_ZERO, /* Use WRITE SAME(10) with zero payload */
+ SD_LBP_DISABLE, /* Discard disabled due to failed cmd */
+};
+
struct scsi_disk {
struct scsi_driver *driver; /* always &sd_template */
struct scsi_device *device;
struct gendisk *disk;
atomic_t openers;
sector_t capacity; /* size in 512-byte sectors */
+ u32 max_ws_blocks;
+ u32 max_unmap_blocks;
+ u32 unmap_granularity;
+ u32 unmap_alignment;
u32 index;
unsigned int physical_block_size;
u8 media_present;
u8 write_prot;
u8 protection_type;/* Data Integrity Field */
+ u8 provisioning_mode;
unsigned ATO : 1; /* state of disk ATO bit */
unsigned WCE : 1; /* state of disk WCE bit */
unsigned RCD : 1; /* state of disk RCD bit, unused */
unsigned DPOFUA : 1; /* state of disk DPOFUA bit */
unsigned first_scan : 1;
- unsigned thin_provisioning : 1;
- unsigned unmap : 1;
- unsigned tpws : 1;
- unsigned tpu : 1;
- unsigned tpvpd : 1;
+ unsigned lbpme : 1;
+ unsigned lbprz : 1;
+ unsigned lbpu : 1;
+ unsigned lbpws : 1;
+ unsigned lbpws10 : 1;
+ unsigned lbpvpd : 1;
};
#define to_scsi_disk(obj) container_of(obj,struct scsi_disk,dev)
{
struct se_device *dev = SE_DEV(cmd);
unsigned char *buf = cmd->t_task->t_task_buf;
- u32 blocks = dev->transport->get_blocks(dev);
+ unsigned long long blocks_long = dev->transport->get_blocks(dev);
+ u32 blocks;
+
+ if (blocks_long >= 0x00000000ffffffff)
+ blocks = 0xffffffff;
+ else
+ blocks = (u32)blocks_long;
buf[0] = (blocks >> 24) & 0xff;
buf[1] = (blocks >> 16) & 0xff;
#define PCI_DEVICE_ID_TIGON3_5723 0x165b
#define PCI_DEVICE_ID_TIGON3_5705M 0x165d
#define PCI_DEVICE_ID_TIGON3_5705M_2 0x165e
+#define PCI_DEVICE_ID_NX2_57712 0x1662
+#define PCI_DEVICE_ID_NX2_57712E 0x1663
#define PCI_DEVICE_ID_TIGON3_5714 0x1668
#define PCI_DEVICE_ID_TIGON3_5714S 0x1669
#define PCI_DEVICE_ID_TIGON3_5780 0x166a
FC_NS_GI_A = 0x0101, /* get identifiers - scope */
FC_NS_GPN_ID = 0x0112, /* get port name by ID */
FC_NS_GNN_ID = 0x0113, /* get node name by ID */
+ FC_NS_GSPN_ID = 0x0118, /* get symbolic port name */
FC_NS_GID_PN = 0x0121, /* get ID for port name */
FC_NS_GID_NN = 0x0131, /* get IDs for node name */
FC_NS_GID_FT = 0x0171, /* get IDs by FC4 type */
};
/*
- * GID_PN response
+ * GID_PN response or GSPN_ID request
*/
struct fc_gid_pn_resp {
__u8 fp_resvd;
__u8 fp_fid[3]; /* port ID */
};
+/*
+ * GSPN_ID response
+ */
+struct fc_gspn_resp {
+ __u8 fp_name_len;
+ char fp_name[];
+};
+
/*
* RFT_ID request - register FC-4 types for ID.
*/
} payload;
};
-/**
- * fill FC header fields in specified fc_frame
- */
-static inline void fc_fill_fc_hdr(struct fc_frame *fp, enum fc_rctl r_ctl,
- u32 did, u32 sid, enum fc_fh_type type,
- u32 f_ctl, u32 parm_offset)
+static inline void __fc_fill_fc_hdr(struct fc_frame_header *fh,
+ enum fc_rctl r_ctl,
+ u32 did, u32 sid, enum fc_fh_type type,
+ u32 f_ctl, u32 parm_offset)
{
- struct fc_frame_header *fh;
-
- fh = fc_frame_header_get(fp);
WARN_ON(r_ctl == 0);
fh->fh_r_ctl = r_ctl;
hton24(fh->fh_d_id, did);
fh->fh_parm_offset = htonl(parm_offset);
}
+/**
+ * fill FC header fields in specified fc_frame
+ */
+static inline void fc_fill_fc_hdr(struct fc_frame *fp, enum fc_rctl r_ctl,
+ u32 did, u32 sid, enum fc_fh_type type,
+ u32 f_ctl, u32 parm_offset)
+{
+ struct fc_frame_header *fh;
+
+ fh = fc_frame_header_get(fp);
+ __fc_fill_fc_hdr(fh, r_ctl, did, sid, type, f_ctl, parm_offset);
+}
+
/**
* fc_adisc_fill() - Fill in adisc request frame
* @lport: local port.
#include <scsi/fc_frame.h>
+#define FC_FC4_PROV_SIZE (FC_TYPE_FCP + 1) /* size of tables */
+
/*
* libfc error codes
*/
#define FC_RP_FLAGS_REC_SUPPORTED (1 << 0)
#define FC_RP_FLAGS_RETRY (1 << 1)
#define FC_RP_STARTED (1 << 2)
+ #define FC_RP_FLAGS_CONF_REQ (1 << 3)
unsigned int e_d_tov;
unsigned int r_a_tov;
};
* @rp_mutex: The mutex that protects the remote port
* @retry_work: Handle for retries
* @event_callback: Callback when READY, FAILED or LOGO states complete
+ * @prli_count: Count of open PRLI sessions in providers
* @rcu: Structure used for freeing in an RCU-safe manner
*/
struct fc_rport_priv {
struct list_head peers;
struct work_struct event_work;
u32 supported_classes;
+ u16 prli_count;
struct rcu_head rcu;
+ u16 sp_features;
+ u8 spp_type;
+ void (*lld_event_callback)(struct fc_lport *,
+ struct fc_rport_priv *,
+ enum fc_rport_event);
};
/**
*/
struct fc_seq *(*seq_start_next)(struct fc_seq *);
+ /*
+ * Set a response handler for the exchange of the sequence.
+ *
+ * STATUS: OPTIONAL
+ */
+ void (*seq_set_resp)(struct fc_seq *sp,
+ void (*resp)(struct fc_seq *, struct fc_frame *,
+ void *),
+ void *arg);
+
/*
* Assign a sequence for an incoming request frame.
*
*/
struct fc_seq *(*seq_assign)(struct fc_lport *, struct fc_frame *);
+ /*
+ * Release the reference on the sequence returned by seq_assign().
+ *
+ * STATUS: OPTIONAL
+ */
+ void (*seq_release)(struct fc_seq *);
+
/*
* Reset an exchange manager, completing all sequences and exchanges.
* If s_id is non-zero, reset only exchanges originating from that FID.
*/
void (*rport_destroy)(struct kref *);
+ /*
+ * Callback routine after the remote port is logged in
+ *
+ * STATUS: OPTIONAL
+ */
+ void (*rport_event_callback)(struct fc_lport *,
+ struct fc_rport_priv *,
+ enum fc_rport_event);
+
/*
* Send a fcp cmd from fsp pkt.
* Called with the SCSI host lock unlocked and irqs disabled.
enum fc_disc_event);
};
+/*
+ * Local port notifier and events.
+ */
+extern struct blocking_notifier_head fc_lport_notifier_head;
+enum fc_lport_event {
+ FC_LPORT_EV_ADD,
+ FC_LPORT_EV_DEL,
+};
+
/**
* struct fc_lport - Local port
* @host: The SCSI host associated with a local port
* @lso_max: The maximum large offload send size
* @fcts: FC-4 type mask
* @lp_mutex: Mutex to protect the local port
- * @list: Handle for list of local ports
+ * @list: Linkage on list of vport peers
* @retry_work: Handle to local port for delayed retry context
+ * @prov: Pointers available for use by passive FC-4 providers
+ * @lport_list: Linkage on module-wide list of local ports
*/
struct fc_lport {
/* Associations */
struct mutex lp_mutex;
struct list_head list;
struct delayed_work retry_work;
+ void *prov[FC_FC4_PROV_SIZE];
+ struct list_head lport_list;
};
+/**
+ * struct fc4_prov - FC-4 provider registration
+ * @prli: Handler for incoming PRLI
+ * @prlo: Handler for session reset
+ * @recv: Handler for incoming request
+ * @module: Pointer to module. May be NULL.
+ */
+struct fc4_prov {
+ int (*prli)(struct fc_rport_priv *, u32 spp_len,
+ const struct fc_els_spp *spp_in,
+ struct fc_els_spp *spp_out);
+ void (*prlo)(struct fc_rport_priv *);
+ void (*recv)(struct fc_lport *, struct fc_frame *);
+ struct module *module;
+};
+
+/*
+ * Register FC-4 provider with libfc.
+ */
+int fc_fc4_register_provider(enum fc_fh_type type, struct fc4_prov *);
+void fc_fc4_deregister_provider(enum fc_fh_type type, struct fc4_prov *);
+
/*
* FC_LPORT HELPER FUNCTIONS
*****************************/
struct fc_lport *fc_vport_id_lookup(struct fc_lport *, u32 port_id);
int fc_lport_bsg_request(struct fc_bsg_job *);
void fc_lport_set_local_id(struct fc_lport *, u32 port_id);
+void fc_lport_iterate(void (*func)(struct fc_lport *, void *), void *);
/*
* REMOTE PORT LAYER
#define FCOE_MAX_CMD_LEN 16 /* Supported CDB length */
+/*
+ * Max MTU for FCoE: 14 (FCoE header) + 24 (FC header) + 2112 (max FC payload)
+ * + 4 (FC CRC) + 4 (FCoE trailer) = 2158 bytes
+ */
+#define FCOE_MTU 2158
+
/*
* FIP tunable parameters.
*/
u64 fcoe_wwn_from_mac(unsigned char mac[], unsigned int, unsigned int);
int fcoe_libfc_config(struct fc_lport *, struct fcoe_ctlr *,
const struct libfc_function_template *, int init_fcp);
+u32 fcoe_fc_crc(struct fc_frame *fp);
+int fcoe_start_io(struct sk_buff *skb);
/**
* is_fip_mode() - returns true if FIP mode selected.
return fip->state == FIP_ST_ENABLED;
}
+/* helper for FCoE SW HBA drivers, can include subven and subdev if needed. The
+ * modpost would use pci_device_id table to auto-generate formatted module alias
+ * into the corresponding .mod.c file, but there may or may not be a pci device
+ * id table for FCoE drivers so we use the following helper for build the fcoe
+ * driver module alias.
+ */
+#define MODULE_ALIAS_FCOE_PCI(ven, dev) \
+ MODULE_ALIAS("fcoe-pci:" \
+ "v" __stringify(ven) \
+ "d" __stringify(dev) "sv*sd*bc*sc*i*")
+
+/* the name of the default FCoE transport driver fcoe.ko */
+#define FCOE_TRANSPORT_DEFAULT "fcoe"
+
+/* struct fcoe_transport - The FCoE transport interface
+ * @name: a vendor specific name for their FCoE transport driver
+ * @attached: whether this transport is already attached
+ * @list: list linkage to all attached transports
+ * @match: handler to allow the transport driver to match up a given netdev
+ * @create: handler to sysfs entry of create for FCoE instances
+ * @destroy: handler to sysfs entry of destroy for FCoE instances
+ * @enable: handler to sysfs entry of enable for FCoE instances
+ * @disable: handler to sysfs entry of disable for FCoE instances
+ */
+struct fcoe_transport {
+ char name[IFNAMSIZ];
+ bool attached;
+ struct list_head list;
+ bool (*match) (struct net_device *device);
+ int (*create) (struct net_device *device, enum fip_state fip_mode);
+ int (*destroy) (struct net_device *device);
+ int (*enable) (struct net_device *device);
+ int (*disable) (struct net_device *device);
+};
+
+/**
+ * struct fcoe_percpu_s - The context for FCoE receive thread(s)
+ * @thread: The thread context
+ * @fcoe_rx_list: The queue of pending packets to process
+ * @page: The memory page for calculating frame trailer CRCs
+ * @crc_eof_offset: The offset into the CRC page pointing to available
+ * memory for a new trailer
+ */
+struct fcoe_percpu_s {
+ struct task_struct *thread;
+ struct sk_buff_head fcoe_rx_list;
+ struct page *crc_eof_page;
+ int crc_eof_offset;
+};
+
+/**
+ * struct fcoe_port - The FCoE private structure
+ * @priv: The associated fcoe interface. The structure is
+ * defined by the low level driver
+ * @lport: The associated local port
+ * @fcoe_pending_queue: The pending Rx queue of skbs
+ * @fcoe_pending_queue_active: Indicates if the pending queue is active
+ * @max_queue_depth: Max queue depth of pending queue
+ * @min_queue_depth: Min queue depth of pending queue
+ * @timer: The queue timer
+ * @destroy_work: Handle for work context
+ * (to prevent RTNL deadlocks)
+ * @data_srt_addr: Source address for data
+ *
+ * An instance of this structure is to be allocated along with the
+ * Scsi_Host and libfc fc_lport structures.
+ */
+struct fcoe_port {
+ void *priv;
+ struct fc_lport *lport;
+ struct sk_buff_head fcoe_pending_queue;
+ u8 fcoe_pending_queue_active;
+ u32 max_queue_depth;
+ u32 min_queue_depth;
+ struct timer_list timer;
+ struct work_struct destroy_work;
+ u8 data_src_addr[ETH_ALEN];
+};
+void fcoe_clean_pending_queue(struct fc_lport *);
+void fcoe_check_wait_queue(struct fc_lport *lport, struct sk_buff *skb);
+void fcoe_queue_timer(ulong lport);
+int fcoe_get_paged_crc_eof(struct sk_buff *skb, int tlen,
+ struct fcoe_percpu_s *fps);
+
+/**
+ * struct netdev_list
+ * A mapping from netdevice to fcoe_transport
+ */
+struct fcoe_netdev_mapping {
+ struct list_head list;
+ struct net_device *netdev;
+ struct fcoe_transport *ft;
+};
+
+/* fcoe transports registration and deregistration */
+int fcoe_transport_attach(struct fcoe_transport *ft);
+int fcoe_transport_detach(struct fcoe_transport *ft);
#endif /* _LIBFCOE_H */
/* values userspace uses to id a conn */
int persistent_port;
char *persistent_address;
- /* remote portal currently connected to */
- int portal_port;
- char portal_address[ISCSI_ADDRESS_BUF_LEN];
/* MIB-statistics */
uint64_t txdata_octets;
/* hw address or netdev iscsi connection is bound to */
char *hwaddress;
char *netdev;
- /* local address */
- int local_port;
- char local_address[ISCSI_ADDRESS_BUF_LEN];
wait_queue_head_t session_removal_wq;
/* protects sessions and state */
enum iscsi_err err);
extern int iscsi_conn_get_param(struct iscsi_cls_conn *cls_conn,
enum iscsi_param param, char *buf);
+extern int iscsi_conn_get_addr_param(struct sockaddr_storage *addr,
+ enum iscsi_param param, char *buf);
extern void iscsi_suspend_tx(struct iscsi_conn *conn);
extern void iscsi_suspend_queue(struct iscsi_conn *conn);
extern void iscsi_conn_queue_work(struct iscsi_conn *conn);
* recover the link. Transport class will
* retry or fail IO */
#define DID_TRANSPORT_FAILFAST 0x0f /* Transport class fastfailed the io */
+#define DID_TARGET_FAILURE 0x10 /* Permanent target failure, do not retry on
+ * other paths */
+#define DID_NEXUS_FAILURE 0x11 /* Permanent nexus failure, retry on other
+ * paths might yield different results */
#define DRIVER_OK 0x00 /* Driver status */
/*
#define TIMEOUT_ERROR 0x2007
#define SCSI_RETURN_NOT_HANDLED 0x2008
#define FAST_IO_FAIL 0x2009
+#define TARGET_ERROR 0x200A
/*
* Midlevel queue return values.
struct scsi_device_handler {
/* Used by the infrastructure */
struct list_head list; /* list of scsi_device_handlers */
+ int idx;
/* Filled by the hardware handler */
struct module *module;
void (*destroy_conn) (struct iscsi_cls_conn *conn);
int (*set_param) (struct iscsi_cls_conn *conn, enum iscsi_param param,
char *buf, int buflen);
+ int (*get_ep_param) (struct iscsi_endpoint *ep, enum iscsi_param param,
+ char *buf);
int (*get_conn_param) (struct iscsi_cls_conn *conn,
enum iscsi_param param, char *buf);
int (*get_session_param) (struct iscsi_cls_session *session,
void *dd_data; /* LLD private data */
struct iscsi_transport *transport;
uint32_t cid; /* connection id */
+ struct mutex ep_mutex;
+ struct iscsi_endpoint *ep;
- int active; /* must be accessed with the connlock */
struct device dev; /* sysfs transport/container device */
};
void *dd_data; /* LLD private data */
struct device dev;
uint64_t id;
+ struct iscsi_cls_conn *conn;
};
/*
scsi_statusbyte_name(SAM_STAT_ACA_ACTIVE), \
scsi_statusbyte_name(SAM_STAT_TASK_ABORTED))
+#define scsi_prot_op_name(result) { result, #result }
+#define show_prot_op_name(val) \
+ __print_symbolic(val, \
+ scsi_prot_op_name(SCSI_PROT_NORMAL), \
+ scsi_prot_op_name(SCSI_PROT_READ_INSERT), \
+ scsi_prot_op_name(SCSI_PROT_WRITE_STRIP), \
+ scsi_prot_op_name(SCSI_PROT_READ_STRIP), \
+ scsi_prot_op_name(SCSI_PROT_WRITE_INSERT), \
+ scsi_prot_op_name(SCSI_PROT_READ_PASS), \
+ scsi_prot_op_name(SCSI_PROT_WRITE_PASS))
+
const char *scsi_trace_parse_cdb(struct trace_seq*, unsigned char*, int);
#define __parse_cdb(cdb, len) scsi_trace_parse_cdb(p, cdb, len)
__field( unsigned int, cmd_len )
__field( unsigned int, data_sglen )
__field( unsigned int, prot_sglen )
+ __field( unsigned char, prot_op )
__dynamic_array(unsigned char, cmnd, cmd->cmd_len)
),
__entry->cmd_len = cmd->cmd_len;
__entry->data_sglen = scsi_sg_count(cmd);
__entry->prot_sglen = scsi_prot_sg_count(cmd);
+ __entry->prot_op = scsi_get_prot_op(cmd);
memcpy(__get_dynamic_array(cmnd), cmd->cmnd, cmd->cmd_len);
),
TP_printk("host_no=%u channel=%u id=%u lun=%u data_sgl=%u prot_sgl=%u" \
- " cmnd=(%s %s raw=%s)",
+ " prot_op=%s cmnd=(%s %s raw=%s)",
__entry->host_no, __entry->channel, __entry->id,
__entry->lun, __entry->data_sglen, __entry->prot_sglen,
+ show_prot_op_name(__entry->prot_op),
show_opcode_name(__entry->opcode),
__parse_cdb(__get_dynamic_array(cmnd), __entry->cmd_len),
__print_hex(__get_dynamic_array(cmnd), __entry->cmd_len))
__field( unsigned int, cmd_len )
__field( unsigned int, data_sglen )
__field( unsigned int, prot_sglen )
+ __field( unsigned char, prot_op )
__dynamic_array(unsigned char, cmnd, cmd->cmd_len)
),
__entry->cmd_len = cmd->cmd_len;
__entry->data_sglen = scsi_sg_count(cmd);
__entry->prot_sglen = scsi_prot_sg_count(cmd);
+ __entry->prot_op = scsi_get_prot_op(cmd);
memcpy(__get_dynamic_array(cmnd), cmd->cmnd, cmd->cmd_len);
),
TP_printk("host_no=%u channel=%u id=%u lun=%u data_sgl=%u prot_sgl=%u" \
- " cmnd=(%s %s raw=%s) rtn=%d",
+ " prot_op=%s cmnd=(%s %s raw=%s) rtn=%d",
__entry->host_no, __entry->channel, __entry->id,
__entry->lun, __entry->data_sglen, __entry->prot_sglen,
+ show_prot_op_name(__entry->prot_op),
show_opcode_name(__entry->opcode),
__parse_cdb(__get_dynamic_array(cmnd), __entry->cmd_len),
__print_hex(__get_dynamic_array(cmnd), __entry->cmd_len),
__field( unsigned int, cmd_len )
__field( unsigned int, data_sglen )
__field( unsigned int, prot_sglen )
+ __field( unsigned char, prot_op )
__dynamic_array(unsigned char, cmnd, cmd->cmd_len)
),
__entry->cmd_len = cmd->cmd_len;
__entry->data_sglen = scsi_sg_count(cmd);
__entry->prot_sglen = scsi_prot_sg_count(cmd);
+ __entry->prot_op = scsi_get_prot_op(cmd);
memcpy(__get_dynamic_array(cmnd), cmd->cmnd, cmd->cmd_len);
),
TP_printk("host_no=%u channel=%u id=%u lun=%u data_sgl=%u " \
- "prot_sgl=%u cmnd=(%s %s raw=%s) result=(driver=%s host=%s " \
- "message=%s status=%s)",
+ "prot_sgl=%u prot_op=%s cmnd=(%s %s raw=%s) result=(driver=" \
+ "%s host=%s message=%s status=%s)",
__entry->host_no, __entry->channel, __entry->id,
__entry->lun, __entry->data_sglen, __entry->prot_sglen,
+ show_prot_op_name(__entry->prot_op),
show_opcode_name(__entry->opcode),
__parse_cdb(__get_dynamic_array(cmnd), __entry->cmd_len),
__print_hex(__get_dynamic_array(cmnd), __entry->cmd_len),
projects / karo-tx-linux.git / commitdiff