2 * SAS Transport Layer for MPT (Message Passing Technology) based controllers
4 * This code is based on drivers/scsi/mpt2sas/mpt2_transport.c
5 * Copyright (C) 2007-2009 LSI Corporation
6 * (mailto:DL-MPTFusionLinux@lsi.com)
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License
10 * as published by the Free Software Foundation; either version 2
11 * of the License, or (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
19 * THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
20 * CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
21 * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
22 * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
23 * solely responsible for determining the appropriateness of using and
24 * distributing the Program and assumes all risks associated with its
25 * exercise of rights under this Agreement, including but not limited to
26 * the risks and costs of program errors, damage to or loss of data,
27 * programs or equipment, and unavailability or interruption of operations.
29 * DISCLAIMER OF LIABILITY
30 * NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
31 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
32 * DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
33 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
34 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
35 * USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
36 * HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
38 * You should have received a copy of the GNU General Public License
39 * along with this program; if not, write to the Free Software
40 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
44 #include <linux/module.h>
45 #include <linux/kernel.h>
46 #include <linux/init.h>
47 #include <linux/errno.h>
48 #include <linux/sched.h>
49 #include <linux/workqueue.h>
50 #include <linux/delay.h>
51 #include <linux/pci.h>
53 #include <scsi/scsi.h>
54 #include <scsi/scsi_cmnd.h>
55 #include <scsi/scsi_device.h>
56 #include <scsi/scsi_host.h>
57 #include <scsi/scsi_transport_sas.h>
58 #include <scsi/scsi_dbg.h>
60 #include "mpt2sas_base.h"
62 * _transport_sas_node_find_by_handle - sas node search
63 * @ioc: per adapter object
64 * @handle: expander or hba handle (assigned by firmware)
65 * Context: Calling function should acquire ioc->sas_node_lock.
67 * Search for either hba phys or expander device based on handle, then returns
68 * the sas_node object.
70 static struct _sas_node *
71 _transport_sas_node_find_by_handle(struct MPT2SAS_ADAPTER *ioc, u16 handle)
75 for (i = 0; i < ioc->sas_hba.num_phys; i++)
76 if (ioc->sas_hba.phy[i].handle == handle)
79 return mpt2sas_scsih_expander_find_by_handle(ioc, handle);
83 * _transport_convert_phy_link_rate -
84 * @link_rate: link rate returned from mpt firmware
86 * Convert link_rate from mpi fusion into sas_transport form.
88 static enum sas_linkrate
89 _transport_convert_phy_link_rate(u8 link_rate)
94 case MPI2_SAS_NEG_LINK_RATE_1_5:
95 rc = SAS_LINK_RATE_1_5_GBPS;
97 case MPI2_SAS_NEG_LINK_RATE_3_0:
98 rc = SAS_LINK_RATE_3_0_GBPS;
100 case MPI2_SAS_NEG_LINK_RATE_6_0:
101 rc = SAS_LINK_RATE_6_0_GBPS;
103 case MPI2_SAS_NEG_LINK_RATE_PHY_DISABLED:
104 rc = SAS_PHY_DISABLED;
106 case MPI2_SAS_NEG_LINK_RATE_NEGOTIATION_FAILED:
107 rc = SAS_LINK_RATE_FAILED;
109 case MPI2_SAS_NEG_LINK_RATE_PORT_SELECTOR:
110 rc = SAS_SATA_PORT_SELECTOR;
112 case MPI2_SAS_NEG_LINK_RATE_SMP_RESET_IN_PROGRESS:
113 rc = SAS_PHY_RESET_IN_PROGRESS;
116 case MPI2_SAS_NEG_LINK_RATE_SATA_OOB_COMPLETE:
117 case MPI2_SAS_NEG_LINK_RATE_UNKNOWN_LINK_RATE:
118 rc = SAS_LINK_RATE_UNKNOWN;
125 * _transport_set_identify - set identify for phys and end devices
126 * @ioc: per adapter object
127 * @handle: device handle
128 * @identify: sas identify info
130 * Populates sas identify info.
132 * Returns 0 for success, non-zero for failure.
135 _transport_set_identify(struct MPT2SAS_ADAPTER *ioc, u16 handle,
136 struct sas_identify *identify)
138 Mpi2SasDevicePage0_t sas_device_pg0;
139 Mpi2ConfigReply_t mpi_reply;
143 if (ioc->shost_recovery) {
144 printk(MPT2SAS_INFO_FMT "%s: host reset in progress!\n",
145 __func__, ioc->name);
149 if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
150 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
151 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
153 ioc->name, __FILE__, __LINE__, __func__);
157 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
159 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
160 printk(MPT2SAS_ERR_FMT "handle(0x%04x), ioc_status(0x%04x)"
161 "\nfailure at %s:%d/%s()!\n", ioc->name, handle, ioc_status,
162 __FILE__, __LINE__, __func__);
166 memset(identify, 0, sizeof(identify));
167 device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
170 identify->sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
173 switch (device_info & MPI2_SAS_DEVICE_INFO_MASK_DEVICE_TYPE) {
174 case MPI2_SAS_DEVICE_INFO_NO_DEVICE:
175 identify->device_type = SAS_PHY_UNUSED;
177 case MPI2_SAS_DEVICE_INFO_END_DEVICE:
178 identify->device_type = SAS_END_DEVICE;
180 case MPI2_SAS_DEVICE_INFO_EDGE_EXPANDER:
181 identify->device_type = SAS_EDGE_EXPANDER_DEVICE;
183 case MPI2_SAS_DEVICE_INFO_FANOUT_EXPANDER:
184 identify->device_type = SAS_FANOUT_EXPANDER_DEVICE;
188 /* initiator_port_protocols */
189 if (device_info & MPI2_SAS_DEVICE_INFO_SSP_INITIATOR)
190 identify->initiator_port_protocols |= SAS_PROTOCOL_SSP;
191 if (device_info & MPI2_SAS_DEVICE_INFO_STP_INITIATOR)
192 identify->initiator_port_protocols |= SAS_PROTOCOL_STP;
193 if (device_info & MPI2_SAS_DEVICE_INFO_SMP_INITIATOR)
194 identify->initiator_port_protocols |= SAS_PROTOCOL_SMP;
195 if (device_info & MPI2_SAS_DEVICE_INFO_SATA_HOST)
196 identify->initiator_port_protocols |= SAS_PROTOCOL_SATA;
198 /* target_port_protocols */
199 if (device_info & MPI2_SAS_DEVICE_INFO_SSP_TARGET)
200 identify->target_port_protocols |= SAS_PROTOCOL_SSP;
201 if (device_info & MPI2_SAS_DEVICE_INFO_STP_TARGET)
202 identify->target_port_protocols |= SAS_PROTOCOL_STP;
203 if (device_info & MPI2_SAS_DEVICE_INFO_SMP_TARGET)
204 identify->target_port_protocols |= SAS_PROTOCOL_SMP;
205 if (device_info & MPI2_SAS_DEVICE_INFO_SATA_DEVICE)
206 identify->target_port_protocols |= SAS_PROTOCOL_SATA;
212 * mpt2sas_transport_done - internal transport layer callback handler.
213 * @ioc: per adapter object
214 * @smid: system request message index
215 * @msix_index: MSIX table index supplied by the OS
216 * @reply: reply message frame(lower 32bit addr)
218 * Callback handler when sending internal generated transport cmds.
219 * The callback index passed is `ioc->transport_cb_idx`
224 mpt2sas_transport_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
227 MPI2DefaultReply_t *mpi_reply;
229 mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
230 if (ioc->transport_cmds.status == MPT2_CMD_NOT_USED)
232 if (ioc->transport_cmds.smid != smid)
234 ioc->transport_cmds.status |= MPT2_CMD_COMPLETE;
236 memcpy(ioc->transport_cmds.reply, mpi_reply,
237 mpi_reply->MsgLength*4);
238 ioc->transport_cmds.status |= MPT2_CMD_REPLY_VALID;
240 ioc->transport_cmds.status &= ~MPT2_CMD_PENDING;
241 complete(&ioc->transport_cmds.done);
244 /* report manufacture request structure */
245 struct rep_manu_request{
252 /* report manufacture reply structure */
253 struct rep_manu_reply{
254 u8 smp_frame_type; /* 0x41 */
255 u8 function; /* 0x01 */
258 u16 expander_change_count;
263 u8 vendor_id[SAS_EXPANDER_VENDOR_ID_LEN];
264 u8 product_id[SAS_EXPANDER_PRODUCT_ID_LEN];
265 u8 product_rev[SAS_EXPANDER_PRODUCT_REV_LEN];
266 u8 component_vendor_id[SAS_EXPANDER_COMPONENT_VENDOR_ID_LEN];
268 u8 component_revision_id;
270 u8 vendor_specific[8];
274 * _transport_expander_report_manufacture - obtain SMP report_manufacture
275 * @ioc: per adapter object
276 * @sas_address: expander sas address
277 * @edev: the sas_expander_device object
279 * Fills in the sas_expander_device object when SMP port is created.
281 * Returns 0 for success, non-zero for failure.
284 _transport_expander_report_manufacture(struct MPT2SAS_ADAPTER *ioc,
285 u64 sas_address, struct sas_expander_device *edev)
287 Mpi2SmpPassthroughRequest_t *mpi_request;
288 Mpi2SmpPassthroughReply_t *mpi_reply;
289 struct rep_manu_reply *manufacture_reply;
290 struct rep_manu_request *manufacture_request;
294 unsigned long timeleft;
298 void *data_out = NULL;
299 dma_addr_t data_out_dma;
302 u16 wait_state_count;
304 if (ioc->shost_recovery) {
305 printk(MPT2SAS_INFO_FMT "%s: host reset in progress!\n",
306 __func__, ioc->name);
310 mutex_lock(&ioc->transport_cmds.mutex);
312 if (ioc->transport_cmds.status != MPT2_CMD_NOT_USED) {
313 printk(MPT2SAS_ERR_FMT "%s: transport_cmds in use\n",
314 ioc->name, __func__);
318 ioc->transport_cmds.status = MPT2_CMD_PENDING;
320 wait_state_count = 0;
321 ioc_state = mpt2sas_base_get_iocstate(ioc, 1);
322 while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
323 if (wait_state_count++ == 10) {
324 printk(MPT2SAS_ERR_FMT
325 "%s: failed due to ioc not operational\n",
326 ioc->name, __func__);
331 ioc_state = mpt2sas_base_get_iocstate(ioc, 1);
332 printk(MPT2SAS_INFO_FMT "%s: waiting for "
333 "operational state(count=%d)\n", ioc->name,
334 __func__, wait_state_count);
336 if (wait_state_count)
337 printk(MPT2SAS_INFO_FMT "%s: ioc is operational\n",
338 ioc->name, __func__);
340 smid = mpt2sas_base_get_smid(ioc, ioc->transport_cb_idx);
342 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
343 ioc->name, __func__);
349 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
350 ioc->transport_cmds.smid = smid;
352 sz = sizeof(struct rep_manu_request) + sizeof(struct rep_manu_reply);
353 data_out = pci_alloc_consistent(ioc->pdev, sz, &data_out_dma);
356 printk(KERN_ERR "failure at %s:%d/%s()!\n", __FILE__,
359 mpt2sas_base_free_smid(ioc, smid);
363 manufacture_request = data_out;
364 manufacture_request->smp_frame_type = 0x40;
365 manufacture_request->function = 1;
366 manufacture_request->reserved = 0;
367 manufacture_request->request_length = 0;
369 memset(mpi_request, 0, sizeof(Mpi2SmpPassthroughRequest_t));
370 mpi_request->Function = MPI2_FUNCTION_SMP_PASSTHROUGH;
371 mpi_request->PhysicalPort = 0xFF;
372 mpi_request->VF_ID = 0; /* TODO */
373 mpi_request->VP_ID = 0;
374 sas_address_le = (u64 *)&mpi_request->SASAddress;
375 *sas_address_le = cpu_to_le64(sas_address);
376 mpi_request->RequestDataLength = sizeof(struct rep_manu_request);
377 psge = &mpi_request->SGL;
379 /* WRITE sgel first */
380 sgl_flags = (MPI2_SGE_FLAGS_SIMPLE_ELEMENT |
381 MPI2_SGE_FLAGS_END_OF_BUFFER | MPI2_SGE_FLAGS_HOST_TO_IOC);
382 sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT;
383 ioc->base_add_sg_single(psge, sgl_flags |
384 sizeof(struct rep_manu_request), data_out_dma);
387 psge += ioc->sge_size;
390 sgl_flags = (MPI2_SGE_FLAGS_SIMPLE_ELEMENT |
391 MPI2_SGE_FLAGS_LAST_ELEMENT | MPI2_SGE_FLAGS_END_OF_BUFFER |
392 MPI2_SGE_FLAGS_END_OF_LIST);
393 sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT;
394 ioc->base_add_sg_single(psge, sgl_flags |
395 sizeof(struct rep_manu_reply), data_out_dma +
396 sizeof(struct rep_manu_request));
398 dtransportprintk(ioc, printk(MPT2SAS_DEBUG_FMT "report_manufacture - "
399 "send to sas_addr(0x%016llx)\n", ioc->name,
400 (unsigned long long)sas_address));
401 mpt2sas_base_put_smid_default(ioc, smid);
402 timeleft = wait_for_completion_timeout(&ioc->transport_cmds.done,
405 if (!(ioc->transport_cmds.status & MPT2_CMD_COMPLETE)) {
406 printk(MPT2SAS_ERR_FMT "%s: timeout\n",
407 ioc->name, __func__);
408 _debug_dump_mf(mpi_request,
409 sizeof(Mpi2SmpPassthroughRequest_t)/4);
410 if (!(ioc->transport_cmds.status & MPT2_CMD_RESET))
412 goto issue_host_reset;
415 dtransportprintk(ioc, printk(MPT2SAS_DEBUG_FMT "report_manufacture - "
416 "complete\n", ioc->name));
418 if (ioc->transport_cmds.status & MPT2_CMD_REPLY_VALID) {
421 mpi_reply = ioc->transport_cmds.reply;
423 dtransportprintk(ioc, printk(MPT2SAS_DEBUG_FMT
424 "report_manufacture - reply data transfer size(%d)\n",
425 ioc->name, le16_to_cpu(mpi_reply->ResponseDataLength)));
427 if (le16_to_cpu(mpi_reply->ResponseDataLength) !=
428 sizeof(struct rep_manu_reply))
431 manufacture_reply = data_out + sizeof(struct rep_manu_request);
432 strncpy(edev->vendor_id, manufacture_reply->vendor_id,
433 SAS_EXPANDER_VENDOR_ID_LEN);
434 strncpy(edev->product_id, manufacture_reply->product_id,
435 SAS_EXPANDER_PRODUCT_ID_LEN);
436 strncpy(edev->product_rev, manufacture_reply->product_rev,
437 SAS_EXPANDER_PRODUCT_REV_LEN);
438 edev->level = manufacture_reply->sas_format;
439 if (manufacture_reply->sas_format) {
440 strncpy(edev->component_vendor_id,
441 manufacture_reply->component_vendor_id,
442 SAS_EXPANDER_COMPONENT_VENDOR_ID_LEN);
443 tmp = (u8 *)&manufacture_reply->component_id;
444 edev->component_id = tmp[0] << 8 | tmp[1];
445 edev->component_revision_id =
446 manufacture_reply->component_revision_id;
449 dtransportprintk(ioc, printk(MPT2SAS_DEBUG_FMT
450 "report_manufacture - no reply\n", ioc->name));
454 mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
457 ioc->transport_cmds.status = MPT2_CMD_NOT_USED;
459 pci_free_consistent(ioc->pdev, sz, data_out, data_out_dma);
461 mutex_unlock(&ioc->transport_cmds.mutex);
466 * mpt2sas_transport_port_add - insert port to the list
467 * @ioc: per adapter object
468 * @handle: handle of attached device
469 * @parent_handle: parent handle(either hba or expander)
470 * Context: This function will acquire ioc->sas_node_lock.
472 * Adding new port object to the sas_node->sas_port_list.
474 * Returns mpt2sas_port.
477 mpt2sas_transport_port_add(struct MPT2SAS_ADAPTER *ioc, u16 handle,
480 struct _sas_phy *mpt2sas_phy, *next;
481 struct _sas_port *mpt2sas_port;
483 struct _sas_node *sas_node;
484 struct sas_rphy *rphy;
486 struct sas_port *port;
491 mpt2sas_port = kzalloc(sizeof(struct _sas_port),
494 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
495 ioc->name, __FILE__, __LINE__, __func__);
499 INIT_LIST_HEAD(&mpt2sas_port->port_list);
500 INIT_LIST_HEAD(&mpt2sas_port->phy_list);
501 spin_lock_irqsave(&ioc->sas_node_lock, flags);
502 sas_node = _transport_sas_node_find_by_handle(ioc, parent_handle);
503 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
506 printk(MPT2SAS_ERR_FMT "%s: Could not find parent(0x%04x)!\n",
507 ioc->name, __func__, parent_handle);
511 mpt2sas_port->handle = parent_handle;
512 mpt2sas_port->sas_address = sas_node->sas_address;
513 if ((_transport_set_identify(ioc, handle,
514 &mpt2sas_port->remote_identify))) {
515 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
516 ioc->name, __FILE__, __LINE__, __func__);
520 if (mpt2sas_port->remote_identify.device_type == SAS_PHY_UNUSED) {
521 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
522 ioc->name, __FILE__, __LINE__, __func__);
526 for (i = 0; i < sas_node->num_phys; i++) {
527 if (sas_node->phy[i].remote_identify.sas_address !=
528 mpt2sas_port->remote_identify.sas_address)
530 list_add_tail(&sas_node->phy[i].port_siblings,
531 &mpt2sas_port->phy_list);
532 mpt2sas_port->num_phys++;
535 if (!mpt2sas_port->num_phys) {
536 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
537 ioc->name, __FILE__, __LINE__, __func__);
541 port = sas_port_alloc_num(sas_node->parent_dev);
542 if ((sas_port_add(port))) {
543 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
544 ioc->name, __FILE__, __LINE__, __func__);
548 list_for_each_entry(mpt2sas_phy, &mpt2sas_port->phy_list,
550 if ((ioc->logging_level & MPT_DEBUG_TRANSPORT))
551 dev_printk(KERN_INFO, &port->dev, "add: handle(0x%04x)"
552 ", sas_addr(0x%016llx), phy(%d)\n", handle,
554 mpt2sas_port->remote_identify.sas_address,
555 mpt2sas_phy->phy_id);
556 sas_port_add_phy(port, mpt2sas_phy->phy);
559 mpt2sas_port->port = port;
560 if (mpt2sas_port->remote_identify.device_type == SAS_END_DEVICE)
561 rphy = sas_end_device_alloc(port);
563 rphy = sas_expander_alloc(port,
564 mpt2sas_port->remote_identify.device_type);
566 rphy->identify = mpt2sas_port->remote_identify;
567 if ((sas_rphy_add(rphy))) {
568 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
569 ioc->name, __FILE__, __LINE__, __func__);
571 if ((ioc->logging_level & MPT_DEBUG_TRANSPORT))
572 dev_printk(KERN_INFO, &rphy->dev, "add: handle(0x%04x), "
573 "sas_addr(0x%016llx)\n", handle,
575 mpt2sas_port->remote_identify.sas_address);
576 mpt2sas_port->rphy = rphy;
577 spin_lock_irqsave(&ioc->sas_node_lock, flags);
578 list_add_tail(&mpt2sas_port->port_list, &sas_node->sas_port_list);
579 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
581 /* fill in report manufacture */
582 if (mpt2sas_port->remote_identify.device_type ==
583 MPI2_SAS_DEVICE_INFO_EDGE_EXPANDER ||
584 mpt2sas_port->remote_identify.device_type ==
585 MPI2_SAS_DEVICE_INFO_FANOUT_EXPANDER)
586 _transport_expander_report_manufacture(ioc,
587 mpt2sas_port->remote_identify.sas_address,
588 rphy_to_expander_device(rphy));
593 list_for_each_entry_safe(mpt2sas_phy, next, &mpt2sas_port->phy_list,
595 list_del(&mpt2sas_phy->port_siblings);
601 * mpt2sas_transport_port_remove - remove port from the list
602 * @ioc: per adapter object
603 * @sas_address: sas address of attached device
604 * @parent_handle: handle to the upstream parent(either hba or expander)
605 * Context: This function will acquire ioc->sas_node_lock.
607 * Removing object and freeing associated memory from the
608 * ioc->sas_port_list.
613 mpt2sas_transport_port_remove(struct MPT2SAS_ADAPTER *ioc, u64 sas_address,
618 struct _sas_port *mpt2sas_port, *next;
619 struct _sas_node *sas_node;
621 struct _sas_phy *mpt2sas_phy, *next_phy;
623 spin_lock_irqsave(&ioc->sas_node_lock, flags);
624 sas_node = _transport_sas_node_find_by_handle(ioc, parent_handle);
625 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
628 list_for_each_entry_safe(mpt2sas_port, next, &sas_node->sas_port_list,
630 if (mpt2sas_port->remote_identify.sas_address != sas_address)
633 list_del(&mpt2sas_port->port_list);
640 for (i = 0; i < sas_node->num_phys; i++) {
641 if (sas_node->phy[i].remote_identify.sas_address == sas_address)
642 memset(&sas_node->phy[i].remote_identify, 0 ,
643 sizeof(struct sas_identify));
646 list_for_each_entry_safe(mpt2sas_phy, next_phy,
647 &mpt2sas_port->phy_list, port_siblings) {
648 if ((ioc->logging_level & MPT_DEBUG_TRANSPORT))
649 dev_printk(KERN_INFO, &mpt2sas_port->port->dev,
650 "remove: parent_handle(0x%04x), "
651 "sas_addr(0x%016llx), phy(%d)\n", parent_handle,
653 mpt2sas_port->remote_identify.sas_address,
654 mpt2sas_phy->phy_id);
655 sas_port_delete_phy(mpt2sas_port->port, mpt2sas_phy->phy);
656 list_del(&mpt2sas_phy->port_siblings);
658 sas_port_delete(mpt2sas_port->port);
663 * mpt2sas_transport_add_host_phy - report sas_host phy to transport
664 * @ioc: per adapter object
665 * @mpt2sas_phy: mpt2sas per phy object
666 * @phy_pg0: sas phy page 0
667 * @parent_dev: parent device class object
669 * Returns 0 for success, non-zero for failure.
672 mpt2sas_transport_add_host_phy(struct MPT2SAS_ADAPTER *ioc, struct _sas_phy
673 *mpt2sas_phy, Mpi2SasPhyPage0_t phy_pg0, struct device *parent_dev)
676 int phy_index = mpt2sas_phy->phy_id;
679 INIT_LIST_HEAD(&mpt2sas_phy->port_siblings);
680 phy = sas_phy_alloc(parent_dev, phy_index);
682 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
683 ioc->name, __FILE__, __LINE__, __func__);
686 if ((_transport_set_identify(ioc, mpt2sas_phy->handle,
687 &mpt2sas_phy->identify))) {
688 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
689 ioc->name, __FILE__, __LINE__, __func__);
692 phy->identify = mpt2sas_phy->identify;
693 mpt2sas_phy->attached_handle = le16_to_cpu(phy_pg0.AttachedDevHandle);
694 if (mpt2sas_phy->attached_handle)
695 _transport_set_identify(ioc, mpt2sas_phy->attached_handle,
696 &mpt2sas_phy->remote_identify);
697 phy->identify.phy_identifier = mpt2sas_phy->phy_id;
698 phy->negotiated_linkrate = _transport_convert_phy_link_rate(
699 phy_pg0.NegotiatedLinkRate & MPI2_SAS_NEG_LINK_RATE_MASK_PHYSICAL);
700 phy->minimum_linkrate_hw = _transport_convert_phy_link_rate(
701 phy_pg0.HwLinkRate & MPI2_SAS_HWRATE_MIN_RATE_MASK);
702 phy->maximum_linkrate_hw = _transport_convert_phy_link_rate(
703 phy_pg0.HwLinkRate >> 4);
704 phy->minimum_linkrate = _transport_convert_phy_link_rate(
705 phy_pg0.ProgrammedLinkRate & MPI2_SAS_PRATE_MIN_RATE_MASK);
706 phy->maximum_linkrate = _transport_convert_phy_link_rate(
707 phy_pg0.ProgrammedLinkRate >> 4);
709 if ((sas_phy_add(phy))) {
710 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
711 ioc->name, __FILE__, __LINE__, __func__);
715 if ((ioc->logging_level & MPT_DEBUG_TRANSPORT))
716 dev_printk(KERN_INFO, &phy->dev,
717 "add: handle(0x%04x), sas_addr(0x%016llx)\n"
718 "\tattached_handle(0x%04x), sas_addr(0x%016llx)\n",
719 mpt2sas_phy->handle, (unsigned long long)
720 mpt2sas_phy->identify.sas_address,
721 mpt2sas_phy->attached_handle,
723 mpt2sas_phy->remote_identify.sas_address);
724 mpt2sas_phy->phy = phy;
730 * mpt2sas_transport_add_expander_phy - report expander phy to transport
731 * @ioc: per adapter object
732 * @mpt2sas_phy: mpt2sas per phy object
733 * @expander_pg1: expander page 1
734 * @parent_dev: parent device class object
736 * Returns 0 for success, non-zero for failure.
739 mpt2sas_transport_add_expander_phy(struct MPT2SAS_ADAPTER *ioc, struct _sas_phy
740 *mpt2sas_phy, Mpi2ExpanderPage1_t expander_pg1, struct device *parent_dev)
743 int phy_index = mpt2sas_phy->phy_id;
745 INIT_LIST_HEAD(&mpt2sas_phy->port_siblings);
746 phy = sas_phy_alloc(parent_dev, phy_index);
748 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
749 ioc->name, __FILE__, __LINE__, __func__);
752 if ((_transport_set_identify(ioc, mpt2sas_phy->handle,
753 &mpt2sas_phy->identify))) {
754 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
755 ioc->name, __FILE__, __LINE__, __func__);
758 phy->identify = mpt2sas_phy->identify;
759 mpt2sas_phy->attached_handle =
760 le16_to_cpu(expander_pg1.AttachedDevHandle);
761 if (mpt2sas_phy->attached_handle)
762 _transport_set_identify(ioc, mpt2sas_phy->attached_handle,
763 &mpt2sas_phy->remote_identify);
764 phy->identify.phy_identifier = mpt2sas_phy->phy_id;
765 phy->negotiated_linkrate = _transport_convert_phy_link_rate(
766 expander_pg1.NegotiatedLinkRate &
767 MPI2_SAS_NEG_LINK_RATE_MASK_PHYSICAL);
768 phy->minimum_linkrate_hw = _transport_convert_phy_link_rate(
769 expander_pg1.HwLinkRate & MPI2_SAS_HWRATE_MIN_RATE_MASK);
770 phy->maximum_linkrate_hw = _transport_convert_phy_link_rate(
771 expander_pg1.HwLinkRate >> 4);
772 phy->minimum_linkrate = _transport_convert_phy_link_rate(
773 expander_pg1.ProgrammedLinkRate & MPI2_SAS_PRATE_MIN_RATE_MASK);
774 phy->maximum_linkrate = _transport_convert_phy_link_rate(
775 expander_pg1.ProgrammedLinkRate >> 4);
777 if ((sas_phy_add(phy))) {
778 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
779 ioc->name, __FILE__, __LINE__, __func__);
783 if ((ioc->logging_level & MPT_DEBUG_TRANSPORT))
784 dev_printk(KERN_INFO, &phy->dev,
785 "add: handle(0x%04x), sas_addr(0x%016llx)\n"
786 "\tattached_handle(0x%04x), sas_addr(0x%016llx)\n",
787 mpt2sas_phy->handle, (unsigned long long)
788 mpt2sas_phy->identify.sas_address,
789 mpt2sas_phy->attached_handle,
791 mpt2sas_phy->remote_identify.sas_address);
792 mpt2sas_phy->phy = phy;
797 * mpt2sas_transport_update_links - refreshing phy link changes
798 * @ioc: per adapter object
799 * @handle: handle to sas_host or expander
800 * @attached_handle: attached device handle
801 * @phy_numberv: phy number
802 * @link_rate: new link rate
807 mpt2sas_transport_update_links(struct MPT2SAS_ADAPTER *ioc,
808 u16 handle, u16 attached_handle, u8 phy_number, u8 link_rate)
811 struct _sas_node *sas_node;
812 struct _sas_phy *mpt2sas_phy;
814 if (ioc->shost_recovery) {
815 printk(MPT2SAS_INFO_FMT "%s: host reset in progress!\n",
816 __func__, ioc->name);
820 spin_lock_irqsave(&ioc->sas_node_lock, flags);
821 sas_node = _transport_sas_node_find_by_handle(ioc, handle);
822 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
826 mpt2sas_phy = &sas_node->phy[phy_number];
827 mpt2sas_phy->attached_handle = attached_handle;
828 if (attached_handle && (link_rate >= MPI2_SAS_NEG_LINK_RATE_1_5))
829 _transport_set_identify(ioc, mpt2sas_phy->attached_handle,
830 &mpt2sas_phy->remote_identify);
832 memset(&mpt2sas_phy->remote_identify, 0 , sizeof(struct
835 if (mpt2sas_phy->phy)
836 mpt2sas_phy->phy->negotiated_linkrate =
837 _transport_convert_phy_link_rate(link_rate);
839 if ((ioc->logging_level & MPT_DEBUG_TRANSPORT))
840 dev_printk(KERN_INFO, &mpt2sas_phy->phy->dev,
841 "refresh: handle(0x%04x), sas_addr(0x%016llx),\n"
842 "\tlink_rate(0x%02x), phy(%d)\n"
843 "\tattached_handle(0x%04x), sas_addr(0x%016llx)\n",
844 handle, (unsigned long long)
845 mpt2sas_phy->identify.sas_address, link_rate,
846 phy_number, attached_handle,
848 mpt2sas_phy->remote_identify.sas_address);
852 phy_to_ioc(struct sas_phy *phy)
854 struct Scsi_Host *shost = dev_to_shost(phy->dev.parent);
855 return shost_priv(shost);
859 rphy_to_ioc(struct sas_rphy *rphy)
861 struct Scsi_Host *shost = dev_to_shost(rphy->dev.parent->parent);
862 return shost_priv(shost);
866 * _transport_get_linkerrors -
867 * @phy: The sas phy object
869 * Only support sas_host direct attached phys.
870 * Returns 0 for success, non-zero for failure.
874 _transport_get_linkerrors(struct sas_phy *phy)
876 struct MPT2SAS_ADAPTER *ioc = phy_to_ioc(phy);
877 struct _sas_phy *mpt2sas_phy;
878 Mpi2ConfigReply_t mpi_reply;
879 Mpi2SasPhyPage1_t phy_pg1;
882 for (i = 0, mpt2sas_phy = NULL; i < ioc->sas_hba.num_phys &&
884 if (ioc->sas_hba.phy[i].phy != phy)
886 mpt2sas_phy = &ioc->sas_hba.phy[i];
889 if (!mpt2sas_phy) /* this phy not on sas_host */
892 if ((mpt2sas_config_get_phy_pg1(ioc, &mpi_reply, &phy_pg1,
893 mpt2sas_phy->phy_id))) {
894 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
895 ioc->name, __FILE__, __LINE__, __func__);
899 if (mpi_reply.IOCStatus || mpi_reply.IOCLogInfo)
900 printk(MPT2SAS_INFO_FMT "phy(%d), ioc_status"
901 "(0x%04x), loginfo(0x%08x)\n", ioc->name,
903 le16_to_cpu(mpi_reply.IOCStatus),
904 le32_to_cpu(mpi_reply.IOCLogInfo));
906 phy->invalid_dword_count = le32_to_cpu(phy_pg1.InvalidDwordCount);
907 phy->running_disparity_error_count =
908 le32_to_cpu(phy_pg1.RunningDisparityErrorCount);
909 phy->loss_of_dword_sync_count =
910 le32_to_cpu(phy_pg1.LossDwordSynchCount);
911 phy->phy_reset_problem_count =
912 le32_to_cpu(phy_pg1.PhyResetProblemCount);
917 * _transport_get_enclosure_identifier -
918 * @phy: The sas phy object
920 * Obtain the enclosure logical id for an expander.
921 * Returns 0 for success, non-zero for failure.
924 _transport_get_enclosure_identifier(struct sas_rphy *rphy, u64 *identifier)
926 struct MPT2SAS_ADAPTER *ioc = rphy_to_ioc(rphy);
927 struct _sas_node *sas_expander;
930 spin_lock_irqsave(&ioc->sas_node_lock, flags);
931 sas_expander = mpt2sas_scsih_expander_find_by_sas_address(ioc,
932 rphy->identify.sas_address);
933 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
938 *identifier = sas_expander->enclosure_logical_id;
943 * _transport_get_bay_identifier -
944 * @phy: The sas phy object
946 * Returns the slot id for a device that resides inside an enclosure.
949 _transport_get_bay_identifier(struct sas_rphy *rphy)
951 struct MPT2SAS_ADAPTER *ioc = rphy_to_ioc(rphy);
952 struct _sas_device *sas_device;
955 spin_lock_irqsave(&ioc->sas_device_lock, flags);
956 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
957 rphy->identify.sas_address);
958 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
963 return sas_device->slot;
967 * _transport_phy_reset -
968 * @phy: The sas phy object
971 * Only support sas_host direct attached phys.
972 * Returns 0 for success, non-zero for failure.
975 _transport_phy_reset(struct sas_phy *phy, int hard_reset)
977 struct MPT2SAS_ADAPTER *ioc = phy_to_ioc(phy);
978 struct _sas_phy *mpt2sas_phy;
979 Mpi2SasIoUnitControlReply_t mpi_reply;
980 Mpi2SasIoUnitControlRequest_t mpi_request;
983 for (i = 0, mpt2sas_phy = NULL; i < ioc->sas_hba.num_phys &&
985 if (ioc->sas_hba.phy[i].phy != phy)
987 mpt2sas_phy = &ioc->sas_hba.phy[i];
990 if (!mpt2sas_phy) /* this phy not on sas_host */
993 memset(&mpi_request, 0, sizeof(Mpi2SasIoUnitControlReply_t));
994 mpi_request.Function = MPI2_FUNCTION_SAS_IO_UNIT_CONTROL;
995 mpi_request.Operation = hard_reset ?
996 MPI2_SAS_OP_PHY_HARD_RESET : MPI2_SAS_OP_PHY_LINK_RESET;
997 mpi_request.PhyNum = mpt2sas_phy->phy_id;
999 if ((mpt2sas_base_sas_iounit_control(ioc, &mpi_reply, &mpi_request))) {
1000 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1001 ioc->name, __FILE__, __LINE__, __func__);
1005 if (mpi_reply.IOCStatus || mpi_reply.IOCLogInfo)
1006 printk(MPT2SAS_INFO_FMT "phy(%d), ioc_status"
1007 "(0x%04x), loginfo(0x%08x)\n", ioc->name,
1008 mpt2sas_phy->phy_id,
1009 le16_to_cpu(mpi_reply.IOCStatus),
1010 le32_to_cpu(mpi_reply.IOCLogInfo));
1016 * _transport_smp_handler - transport portal for smp passthru
1017 * @shost: shost object
1018 * @rphy: sas transport rphy object
1021 * This used primarily for smp_utils.
1023 * smp_rep_general /sys/class/bsg/expander-5:0
1026 _transport_smp_handler(struct Scsi_Host *shost, struct sas_rphy *rphy,
1027 struct request *req)
1029 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
1030 Mpi2SmpPassthroughRequest_t *mpi_request;
1031 Mpi2SmpPassthroughReply_t *mpi_reply;
1035 unsigned long timeleft;
1039 dma_addr_t dma_addr_in = 0;
1040 dma_addr_t dma_addr_out = 0;
1041 u16 wait_state_count;
1042 struct request *rsp = req->next_rq;
1045 printk(MPT2SAS_ERR_FMT "%s: the smp response space is "
1046 "missing\n", ioc->name, __func__);
1050 /* do we need to support multiple segments? */
1051 if (req->bio->bi_vcnt > 1 || rsp->bio->bi_vcnt > 1) {
1052 printk(MPT2SAS_ERR_FMT "%s: multiple segments req %u %u, "
1053 "rsp %u %u\n", ioc->name, __func__, req->bio->bi_vcnt,
1054 blk_rq_bytes(req), rsp->bio->bi_vcnt, blk_rq_bytes(rsp));
1058 if (ioc->shost_recovery) {
1059 printk(MPT2SAS_INFO_FMT "%s: host reset in progress!\n",
1060 __func__, ioc->name);
1064 rc = mutex_lock_interruptible(&ioc->transport_cmds.mutex);
1068 if (ioc->transport_cmds.status != MPT2_CMD_NOT_USED) {
1069 printk(MPT2SAS_ERR_FMT "%s: transport_cmds in use\n", ioc->name,
1074 ioc->transport_cmds.status = MPT2_CMD_PENDING;
1076 wait_state_count = 0;
1077 ioc_state = mpt2sas_base_get_iocstate(ioc, 1);
1078 while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
1079 if (wait_state_count++ == 10) {
1080 printk(MPT2SAS_ERR_FMT
1081 "%s: failed due to ioc not operational\n",
1082 ioc->name, __func__);
1087 ioc_state = mpt2sas_base_get_iocstate(ioc, 1);
1088 printk(MPT2SAS_INFO_FMT "%s: waiting for "
1089 "operational state(count=%d)\n", ioc->name,
1090 __func__, wait_state_count);
1092 if (wait_state_count)
1093 printk(MPT2SAS_INFO_FMT "%s: ioc is operational\n",
1094 ioc->name, __func__);
1096 smid = mpt2sas_base_get_smid(ioc, ioc->transport_cb_idx);
1098 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
1099 ioc->name, __func__);
1105 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
1106 ioc->transport_cmds.smid = smid;
1108 memset(mpi_request, 0, sizeof(Mpi2SmpPassthroughRequest_t));
1109 mpi_request->Function = MPI2_FUNCTION_SMP_PASSTHROUGH;
1110 mpi_request->PhysicalPort = 0xFF;
1111 mpi_request->VF_ID = 0; /* TODO */
1112 mpi_request->VP_ID = 0;
1113 *((u64 *)&mpi_request->SASAddress) = (rphy) ?
1114 cpu_to_le64(rphy->identify.sas_address) :
1115 cpu_to_le64(ioc->sas_hba.sas_address);
1116 mpi_request->RequestDataLength = cpu_to_le16(blk_rq_bytes(req) - 4);
1117 psge = &mpi_request->SGL;
1119 /* WRITE sgel first */
1120 sgl_flags = (MPI2_SGE_FLAGS_SIMPLE_ELEMENT |
1121 MPI2_SGE_FLAGS_END_OF_BUFFER | MPI2_SGE_FLAGS_HOST_TO_IOC);
1122 sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT;
1123 dma_addr_out = pci_map_single(ioc->pdev, bio_data(req->bio),
1124 blk_rq_bytes(req), PCI_DMA_BIDIRECTIONAL);
1125 if (!dma_addr_out) {
1126 mpt2sas_base_free_smid(ioc, le16_to_cpu(smid));
1130 ioc->base_add_sg_single(psge, sgl_flags | (blk_rq_bytes(req) - 4),
1134 psge += ioc->sge_size;
1136 /* READ sgel last */
1137 sgl_flags = (MPI2_SGE_FLAGS_SIMPLE_ELEMENT |
1138 MPI2_SGE_FLAGS_LAST_ELEMENT | MPI2_SGE_FLAGS_END_OF_BUFFER |
1139 MPI2_SGE_FLAGS_END_OF_LIST);
1140 sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT;
1141 dma_addr_in = pci_map_single(ioc->pdev, bio_data(rsp->bio),
1142 blk_rq_bytes(rsp), PCI_DMA_BIDIRECTIONAL);
1144 mpt2sas_base_free_smid(ioc, le16_to_cpu(smid));
1148 ioc->base_add_sg_single(psge, sgl_flags | (blk_rq_bytes(rsp) + 4),
1151 dtransportprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s - "
1152 "sending smp request\n", ioc->name, __func__));
1154 mpt2sas_base_put_smid_default(ioc, smid);
1155 timeleft = wait_for_completion_timeout(&ioc->transport_cmds.done,
1158 if (!(ioc->transport_cmds.status & MPT2_CMD_COMPLETE)) {
1159 printk(MPT2SAS_ERR_FMT "%s : timeout\n",
1160 __func__, ioc->name);
1161 _debug_dump_mf(mpi_request,
1162 sizeof(Mpi2SmpPassthroughRequest_t)/4);
1163 if (!(ioc->transport_cmds.status & MPT2_CMD_RESET))
1165 goto issue_host_reset;
1168 dtransportprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s - "
1169 "complete\n", ioc->name, __func__));
1171 if (ioc->transport_cmds.status & MPT2_CMD_REPLY_VALID) {
1173 mpi_reply = ioc->transport_cmds.reply;
1175 dtransportprintk(ioc, printk(MPT2SAS_DEBUG_FMT
1176 "%s - reply data transfer size(%d)\n",
1177 ioc->name, __func__,
1178 le16_to_cpu(mpi_reply->ResponseDataLength)));
1180 memcpy(req->sense, mpi_reply, sizeof(*mpi_reply));
1181 req->sense_len = sizeof(*mpi_reply);
1183 rsp->resid_len -= mpi_reply->ResponseDataLength;
1185 dtransportprintk(ioc, printk(MPT2SAS_DEBUG_FMT
1186 "%s - no reply\n", ioc->name, __func__));
1192 mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
1199 pci_unmap_single(ioc->pdev, dma_addr_out, blk_rq_bytes(req),
1200 PCI_DMA_BIDIRECTIONAL);
1202 pci_unmap_single(ioc->pdev, dma_addr_in, blk_rq_bytes(rsp),
1203 PCI_DMA_BIDIRECTIONAL);
1206 ioc->transport_cmds.status = MPT2_CMD_NOT_USED;
1207 mutex_unlock(&ioc->transport_cmds.mutex);
1211 struct sas_function_template mpt2sas_transport_functions = {
1212 .get_linkerrors = _transport_get_linkerrors,
1213 .get_enclosure_identifier = _transport_get_enclosure_identifier,
1214 .get_bay_identifier = _transport_get_bay_identifier,
1215 .phy_reset = _transport_phy_reset,
1216 .smp_handler = _transport_smp_handler,
1219 struct scsi_transport_template *mpt2sas_transport_template;