L: target-devel@vger.kernel.org
L: http://groups.google.com/group/linux-iscsi-target-dev
W: http://www.linux-iscsi.org
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/nab/lio-core.git master
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending.git master
S: Supported
F: drivers/target/
F: include/target/
static void iscsit_do_crypto_hash_buf(
struct hash_desc *hash,
- unsigned char *buf,
+ const void *buf,
u32 payload_length,
u32 padding,
u8 *pad_bytes,
if (conn->conn_ops->HeaderDigest) {
u32 *header_digest = (u32 *)&cmd->pdu[ISCSI_HDR_LEN];
- iscsit_do_crypto_hash_buf(&conn->conn_tx_hash,
- (unsigned char *)hdr, ISCSI_HDR_LEN,
- 0, NULL, (u8 *)header_digest);
+ iscsit_do_crypto_hash_buf(&conn->conn_tx_hash, hdr,
+ ISCSI_HDR_LEN, 0, NULL, (u8 *)header_digest);
cmd->tx_size += ISCSI_CRC_LEN;
pr_debug("Attaching CRC32C HeaderDigest to"
if (conn->conn_ops->HeaderDigest) {
u32 *header_digest = (u32 *)&cmd->pdu[ISCSI_HDR_LEN];
- iscsit_do_crypto_hash_buf(&conn->conn_tx_hash,
- (unsigned char *)cmd->pdu, ISCSI_HDR_LEN,
- 0, NULL, (u8 *)header_digest);
+ iscsit_do_crypto_hash_buf(&conn->conn_tx_hash, cmd->pdu,
+ ISCSI_HDR_LEN, 0, NULL, (u8 *)header_digest);
iov[0].iov_len += ISCSI_CRC_LEN;
tx_size += ISCSI_CRC_LEN;
if (conn->conn_ops->HeaderDigest) {
u32 *header_digest = (u32 *)&cmd->pdu[ISCSI_HDR_LEN];
- iscsit_do_crypto_hash_buf(&conn->conn_tx_hash,
- (unsigned char *)&cmd->pdu[0], ISCSI_HDR_LEN,
- 0, NULL, (u8 *)header_digest);
+ iscsit_do_crypto_hash_buf(&conn->conn_tx_hash, &cmd->pdu[0],
+ ISCSI_HDR_LEN, 0, NULL, (u8 *)header_digest);
iov[0].iov_len += ISCSI_CRC_LEN;
tx_size += ISCSI_CRC_LEN;
if (conn->conn_ops->HeaderDigest) {
u32 *header_digest = (u32 *)&cmd->pdu[ISCSI_HDR_LEN];
- iscsit_do_crypto_hash_buf(&conn->conn_tx_hash,
- (unsigned char *)hdr, ISCSI_HDR_LEN,
- 0, NULL, (u8 *)header_digest);
+ iscsit_do_crypto_hash_buf(&conn->conn_tx_hash, hdr,
+ ISCSI_HDR_LEN, 0, NULL, (u8 *)header_digest);
tx_size += ISCSI_CRC_LEN;
pr_debug("Attaching CRC32C HeaderDigest to"
if (conn->conn_ops->HeaderDigest) {
u32 *header_digest = (u32 *)&cmd->pdu[ISCSI_HDR_LEN];
- iscsit_do_crypto_hash_buf(&conn->conn_tx_hash,
- (unsigned char *)hdr, ISCSI_HDR_LEN,
- 0, NULL, (u8 *)header_digest);
+ iscsit_do_crypto_hash_buf(&conn->conn_tx_hash, hdr,
+ ISCSI_HDR_LEN, 0, NULL, (u8 *)header_digest);
iov[0].iov_len += ISCSI_CRC_LEN;
tx_size += ISCSI_CRC_LEN;
if (conn->conn_ops->HeaderDigest) {
u32 *header_digest = (u32 *)&cmd->pdu[ISCSI_HDR_LEN];
- iscsit_do_crypto_hash_buf(&conn->conn_tx_hash,
- (unsigned char *)hdr, ISCSI_HDR_LEN,
- 0, NULL, (u8 *)header_digest);
+ iscsit_do_crypto_hash_buf(&conn->conn_tx_hash, hdr,
+ ISCSI_HDR_LEN, 0, NULL, (u8 *)header_digest);
cmd->iov_misc[0].iov_len += ISCSI_CRC_LEN;
tx_size += ISCSI_CRC_LEN;
if (conn->conn_ops->HeaderDigest) {
u32 *header_digest = (u32 *)&cmd->pdu[ISCSI_HDR_LEN];
- iscsit_do_crypto_hash_buf(&conn->conn_tx_hash,
- (unsigned char *)cmd->pdu, ISCSI_HDR_LEN,
- 0, NULL, (u8 *)header_digest);
+ iscsit_do_crypto_hash_buf(&conn->conn_tx_hash, cmd->pdu,
+ ISCSI_HDR_LEN, 0, NULL, (u8 *)header_digest);
iov[0].iov_len += ISCSI_CRC_LEN;
tx_size += ISCSI_CRC_LEN;
if (conn->conn_ops->HeaderDigest) {
u32 *header_digest = (u32 *)&cmd->pdu[ISCSI_HDR_LEN];
- iscsit_do_crypto_hash_buf(&conn->conn_tx_hash,
- (unsigned char *)hdr, ISCSI_HDR_LEN,
- 0, NULL, (u8 *)header_digest);
+ iscsit_do_crypto_hash_buf(&conn->conn_tx_hash, hdr,
+ ISCSI_HDR_LEN, 0, NULL, (u8 *)header_digest);
cmd->iov_misc[0].iov_len += ISCSI_CRC_LEN;
tx_size += ISCSI_CRC_LEN;
if (conn->conn_ops->HeaderDigest) {
u32 *header_digest = (u32 *)&cmd->pdu[ISCSI_HDR_LEN];
- iscsit_do_crypto_hash_buf(&conn->conn_tx_hash,
- (unsigned char *)hdr, ISCSI_HDR_LEN,
- 0, NULL, (u8 *)header_digest);
+ iscsit_do_crypto_hash_buf(&conn->conn_tx_hash, hdr,
+ ISCSI_HDR_LEN, 0, NULL, (u8 *)header_digest);
iov[0].iov_len += ISCSI_CRC_LEN;
tx_size += ISCSI_CRC_LEN;
struct iscsi_cmd *cmd,
struct iscsi_conn *conn)
{
- u32 iov_count = 0, tx_size = 0;
- struct iscsi_reject *hdr;
+ struct iscsi_reject *hdr = (struct iscsi_reject *)&cmd->pdu[0];
struct kvec *iov;
+ u32 iov_count = 0, tx_size;
- iscsit_build_reject(cmd, conn, (struct iscsi_reject *)&cmd->pdu[0]);
+ iscsit_build_reject(cmd, conn, hdr);
iov = &cmd->iov_misc[0];
iov[iov_count].iov_base = cmd->pdu;
if (conn->conn_ops->HeaderDigest) {
u32 *header_digest = (u32 *)&cmd->pdu[ISCSI_HDR_LEN];
- iscsit_do_crypto_hash_buf(&conn->conn_tx_hash,
- (unsigned char *)hdr, ISCSI_HDR_LEN,
- 0, NULL, (u8 *)header_digest);
+ iscsit_do_crypto_hash_buf(&conn->conn_tx_hash, hdr,
+ ISCSI_HDR_LEN, 0, NULL, (u8 *)header_digest);
iov[0].iov_len += ISCSI_CRC_LEN;
tx_size += ISCSI_CRC_LEN;
}
if (conn->conn_ops->DataDigest) {
- iscsit_do_crypto_hash_buf(&conn->conn_tx_hash,
- (unsigned char *)cmd->buf_ptr, ISCSI_HDR_LEN,
- 0, NULL, (u8 *)&cmd->data_crc);
+ iscsit_do_crypto_hash_buf(&conn->conn_tx_hash, cmd->buf_ptr,
+ ISCSI_HDR_LEN, 0, NULL, (u8 *)&cmd->data_crc);
iov[iov_count].iov_base = &cmd->data_crc;
iov[iov_count++].iov_len = ISCSI_CRC_LEN;
/*
* CmdSN is greater than the tail of the list.
*/
- if (ooo_tail->cmdsn < ooo_cmdsn->cmdsn)
+ if (iscsi_sna_lt(ooo_tail->cmdsn, ooo_cmdsn->cmdsn))
list_add_tail(&ooo_cmdsn->ooo_list,
&sess->sess_ooo_cmdsn_list);
else {
*/
list_for_each_entry(ooo_tmp, &sess->sess_ooo_cmdsn_list,
ooo_list) {
- if (ooo_tmp->cmdsn < ooo_cmdsn->cmdsn)
+ if (iscsi_sna_lt(ooo_tmp->cmdsn, ooo_cmdsn->cmdsn))
continue;
+ /* Insert before this entry */
list_add(&ooo_cmdsn->ooo_list,
- &ooo_tmp->ooo_list);
+ ooo_tmp->ooo_list.prev);
break;
}
}
/*
* Extra parameters for ISER from RFC-5046
*/
- param = iscsi_set_default_param(pl, RDMAEXTENTIONS, INITIAL_RDMAEXTENTIONS,
+ param = iscsi_set_default_param(pl, RDMAEXTENSIONS, INITIAL_RDMAEXTENSIONS,
PHASE_OPERATIONAL, SCOPE_SESSION_WIDE, SENDER_BOTH,
TYPERANGE_BOOL_AND, USE_LEADING_ONLY);
if (!param)
SET_PSTATE_NEGOTIATE(param);
} else if (!strcmp(param->name, OFMARKINT)) {
SET_PSTATE_NEGOTIATE(param);
- } else if (!strcmp(param->name, RDMAEXTENTIONS)) {
+ } else if (!strcmp(param->name, RDMAEXTENSIONS)) {
if (iser == true)
SET_PSTATE_NEGOTIATE(param);
} else if (!strcmp(param->name, INITIATORRECVDATASEGMENTLENGTH)) {
param->state &= ~PSTATE_NEGOTIATE;
else if (!strcmp(param->name, OFMARKINT))
param->state &= ~PSTATE_NEGOTIATE;
- else if (!strcmp(param->name, RDMAEXTENTIONS))
+ else if (!strcmp(param->name, RDMAEXTENSIONS))
param->state &= ~PSTATE_NEGOTIATE;
else if (!strcmp(param->name, INITIATORRECVDATASEGMENTLENGTH))
param->state &= ~PSTATE_NEGOTIATE;
ops->SessionType = !strcmp(param->value, DISCOVERY);
pr_debug("SessionType: %s\n",
param->value);
- } else if (!strcmp(param->name, RDMAEXTENTIONS)) {
+ } else if (!strcmp(param->name, RDMAEXTENSIONS)) {
ops->RDMAExtensions = !strcmp(param->value, YES);
pr_debug("RDMAExtensions: %s\n",
param->value);
/*
* Parameter names of iSCSI Extentions for RDMA (iSER). See RFC-5046
*/
-#define RDMAEXTENTIONS "RDMAExtensions"
+#define RDMAEXTENSIONS "RDMAExtensions"
#define INITIATORRECVDATASEGMENTLENGTH "InitiatorRecvDataSegmentLength"
#define TARGETRECVDATASEGMENTLENGTH "TargetRecvDataSegmentLength"
/*
* Initial values for iSER parameters following RFC-5046 Section 6
*/
-#define INITIAL_RDMAEXTENTIONS NO
+#define INITIAL_RDMAEXTENSIONS NO
#define INITIAL_INITIATORRECVDATASEGMENTLENGTH "262144"
#define INITIAL_TARGETRECVDATASEGMENTLENGTH "8192"
.store = target_core_store_dev_udev_path,
};
+static ssize_t target_core_show_dev_enable(void *p, char *page)
+{
+ struct se_device *dev = p;
+
+ return snprintf(page, PAGE_SIZE, "%d\n", !!(dev->dev_flags & DF_CONFIGURED));
+}
+
static ssize_t target_core_store_dev_enable(
void *p,
const char *page,
static struct target_core_configfs_attribute target_core_attr_dev_enable = {
.attr = { .ca_owner = THIS_MODULE,
.ca_name = "enable",
- .ca_mode = S_IWUSR },
- .show = NULL,
+ .ca_mode = S_IRUGO | S_IWUSR },
+ .show = target_core_show_dev_enable,
.store = target_core_store_dev_enable,
};
struct se_dev_entry *deve = se_cmd->se_deve;
deve->total_cmds++;
- deve->total_bytes += se_cmd->data_length;
if ((se_cmd->data_direction == DMA_TO_DEVICE) &&
(deve->lun_flags & TRANSPORT_LUNFLAGS_READ_ONLY)) {
else if (se_cmd->data_direction == DMA_FROM_DEVICE)
deve->read_bytes += se_cmd->data_length;
- deve->deve_cmds++;
-
se_lun = deve->se_lun;
se_cmd->se_lun = deve->se_lun;
se_cmd->pr_res_key = deve->pr_res_key;
return 0;
}
-void core_dec_lacl_count(struct se_node_acl *se_nacl, struct se_cmd *se_cmd)
-{
- struct se_dev_entry *deve;
- unsigned long flags;
-
- spin_lock_irqsave(&se_nacl->device_list_lock, flags);
- deve = se_nacl->device_list[se_cmd->orig_fe_lun];
- deve->deve_cmds--;
- spin_unlock_irqrestore(&se_nacl->device_list_lock, flags);
-}
-
void core_update_device_list_access(
u32 mapped_lun,
u32 lun_access,
struct request_queue *q = bdev_get_queue(inode->i_bdev);
unsigned long long dev_size;
- dev->dev_attrib.hw_block_size =
- bdev_logical_block_size(inode->i_bdev);
- dev->dev_attrib.hw_max_sectors = queue_max_hw_sectors(q);
-
/*
* Determine the number of bytes from i_size_read() minus
* one (1) logical sector from underlying struct block_device
goto fail;
}
- dev->dev_attrib.hw_block_size = FD_BLOCKSIZE;
- dev->dev_attrib.hw_max_sectors = FD_MAX_SECTORS;
-
/*
* Limit UNMAP emulation to 8k Number of LBAs (NoLB)
*/
fd_dev->fd_block_size = dev->dev_attrib.hw_block_size;
+ dev->dev_attrib.hw_block_size = FD_BLOCKSIZE;
+ dev->dev_attrib.hw_max_sectors = FD_MAX_SECTORS;
dev->dev_attrib.hw_queue_depth = FD_MAX_DEVICE_QUEUE_DEPTH;
if (fd_dev->fbd_flags & FDBD_HAS_BUFFERED_IO_WCE) {
rw = WRITE_FUA;
else if (!(q->flush_flags & REQ_FLUSH))
rw = WRITE_FUA;
+ else
+ rw = WRITE;
} else {
rw = WRITE;
}
struct se_dev_entry *core_get_se_deve_from_rtpi(struct se_node_acl *, u16);
int core_free_device_list_for_node(struct se_node_acl *,
struct se_portal_group *);
-void core_dec_lacl_count(struct se_node_acl *, struct se_cmd *);
void core_update_device_list_access(u32, u32, struct se_node_acl *);
int core_enable_device_list_for_node(struct se_lun *, struct se_lun_acl *,
u32, u32, struct se_node_acl *, struct se_portal_group *);
u32 src_len;
u64 tmp;
+ if (dev->rd_flags & RDF_NULLIO) {
+ target_complete_cmd(cmd, SAM_STAT_GOOD);
+ return 0;
+ }
+
tmp = cmd->t_task_lba * se_dev->dev_attrib.block_size;
rd_offset = do_div(tmp, PAGE_SIZE);
rd_page = tmp;
}
enum {
- Opt_rd_pages, Opt_err
+ Opt_rd_pages, Opt_rd_nullio, Opt_err
};
static match_table_t tokens = {
{Opt_rd_pages, "rd_pages=%d"},
+ {Opt_rd_nullio, "rd_nullio=%d"},
{Opt_err, NULL}
};
" Count: %u\n", rd_dev->rd_page_count);
rd_dev->rd_flags |= RDF_HAS_PAGE_COUNT;
break;
+ case Opt_rd_nullio:
+ match_int(args, &arg);
+ if (arg != 1)
+ break;
+
+ pr_debug("RAMDISK: Setting NULLIO flag: %d\n", arg);
+ rd_dev->rd_flags |= RDF_NULLIO;
+ break;
default:
break;
}
ssize_t bl = sprintf(b, "TCM RamDisk ID: %u RamDisk Makeup: rd_mcp\n",
rd_dev->rd_dev_id);
bl += sprintf(b + bl, " PAGES/PAGE_SIZE: %u*%lu"
- " SG_table_count: %u\n", rd_dev->rd_page_count,
- PAGE_SIZE, rd_dev->sg_table_count);
+ " SG_table_count: %u nullio: %d\n", rd_dev->rd_page_count,
+ PAGE_SIZE, rd_dev->sg_table_count,
+ !!(rd_dev->rd_flags & RDF_NULLIO));
return bl;
}
} ____cacheline_aligned;
#define RDF_HAS_PAGE_COUNT 0x01
+#define RDF_NULLIO 0x02
struct rd_dev {
struct se_device dev;
if (wait_for_tasks)
transport_wait_for_tasks(cmd);
- core_dec_lacl_count(cmd->se_sess->se_node_acl, cmd);
-
if (cmd->se_lun)
transport_lun_remove_cmd(cmd);
{
struct se_cmd *se_cmd = container_of(kref, struct se_cmd, cmd_kref);
struct se_session *se_sess = se_cmd->se_sess;
- unsigned long flags;
- spin_lock_irqsave(&se_sess->sess_cmd_lock, flags);
if (list_empty(&se_cmd->se_cmd_list)) {
- spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags);
+ spin_unlock(&se_sess->sess_cmd_lock);
se_cmd->se_tfo->release_cmd(se_cmd);
return;
}
if (se_sess->sess_tearing_down && se_cmd->cmd_wait_set) {
- spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags);
+ spin_unlock(&se_sess->sess_cmd_lock);
complete(&se_cmd->cmd_wait_comp);
return;
}
list_del(&se_cmd->se_cmd_list);
- spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags);
+ spin_unlock(&se_sess->sess_cmd_lock);
se_cmd->se_tfo->release_cmd(se_cmd);
}
*/
int target_put_sess_cmd(struct se_session *se_sess, struct se_cmd *se_cmd)
{
- return kref_put(&se_cmd->cmd_kref, target_release_cmd_kref);
+ return kref_put_spinlock_irqsave(&se_cmd->cmd_kref, target_release_cmd_kref,
+ &se_sess->sess_cmd_lock);
}
EXPORT_SYMBOL(target_put_sess_cmd);
#include <linux/atomic.h>
#include <linux/kernel.h>
#include <linux/mutex.h>
+#include <linux/spinlock.h>
struct kref {
atomic_t refcount;
return kref_sub(kref, 1, release);
}
+/**
+ * kref_put_spinlock_irqsave - decrement refcount for object.
+ * @kref: object.
+ * @release: pointer to the function that will clean up the object when the
+ * last reference to the object is released.
+ * This pointer is required, and it is not acceptable to pass kfree
+ * in as this function.
+ * @lock: lock to take in release case
+ *
+ * Behaves identical to kref_put with one exception. If the reference count
+ * drops to zero, the lock will be taken atomically wrt dropping the reference
+ * count. The release function has to call spin_unlock() without _irqrestore.
+ */
+static inline int kref_put_spinlock_irqsave(struct kref *kref,
+ void (*release)(struct kref *kref),
+ spinlock_t *lock)
+{
+ unsigned long flags;
+
+ WARN_ON(release == NULL);
+ if (atomic_add_unless(&kref->refcount, -1, 1))
+ return 0;
+ spin_lock_irqsave(lock, flags);
+ if (atomic_dec_and_test(&kref->refcount)) {
+ release(kref);
+ local_irq_restore(flags);
+ return 1;
+ }
+ spin_unlock_irqrestore(lock, flags);
+ return 0;
+}
+
static inline int kref_put_mutex(struct kref *kref,
void (*release)(struct kref *kref),
struct mutex *lock)
#define CMD_T_ABORTED (1 << 0)
#define CMD_T_ACTIVE (1 << 1)
#define CMD_T_COMPLETE (1 << 2)
-#define CMD_T_QUEUED (1 << 3)
#define CMD_T_SENT (1 << 4)
#define CMD_T_STOP (1 << 5)
#define CMD_T_FAILED (1 << 6)
bool def_pr_registered;
/* See transport_lunflags_table */
u32 lun_flags;
- u32 deve_cmds;
u32 mapped_lun;
- u32 average_bytes;
- u32 last_byte_count;
u32 total_cmds;
- u32 total_bytes;
u64 pr_res_key;
u64 creation_time;
u32 attach_count;