debug_scsi("immrsp [op 0x%x cid %d itt 0x%x len %d]\n",
opcode, conn->id, mtask->itt, datalen);
+ rc = iscsi_check_assign_cmdsn(session,
+ (struct iscsi_nopin*)hdr);
+ if (rc)
+ goto done;
+
switch(opcode) {
+ case ISCSI_OP_LOGOUT_RSP:
+ conn->exp_statsn = be32_to_cpu(hdr->statsn) + 1;
+ /* fall through */
case ISCSI_OP_LOGIN_RSP:
case ISCSI_OP_TEXT_RSP:
- case ISCSI_OP_LOGOUT_RSP:
- rc = iscsi_check_assign_cmdsn(session,
- (struct iscsi_nopin*)hdr);
- if (rc)
- break;
-
+ /*
+ * login related PDU's exp_statsn is handled in
+ * userspace
+ */
rc = iscsi_recv_pdu(conn->cls_conn, hdr, data, datalen);
list_del(&mtask->running);
if (conn->login_mtask != mtask)
(void*)&mtask, sizeof(void*));
break;
case ISCSI_OP_SCSI_TMFUNC_RSP:
- rc = iscsi_check_assign_cmdsn(session,
- (struct iscsi_nopin*)hdr);
- if (rc)
- break;
-
if (datalen) {
rc = ISCSI_ERR_PROTO;
break;
}
+
+ conn->exp_statsn = be32_to_cpu(hdr->statsn) + 1;
conn->tmfrsp_pdus_cnt++;
if (conn->tmabort_state == TMABORT_INITIAL) {
conn->tmabort_state =
rc = ISCSI_ERR_PROTO;
break;
}
- rc = iscsi_check_assign_cmdsn(session,
- (struct iscsi_nopin*)hdr);
- if (rc)
- break;
conn->exp_statsn = be32_to_cpu(hdr->statsn) + 1;
rc = iscsi_recv_pdu(conn->cls_conn, hdr, data, datalen);
case ISCSI_OP_REJECT:
/* we need sth like iscsi_reject_rsp()*/
case ISCSI_OP_ASYNC_EVENT:
+ conn->exp_statsn = be32_to_cpu(hdr->statsn) + 1;
/* we need sth like iscsi_async_event_rsp() */
rc = ISCSI_ERR_BAD_OPCODE;
break;
} else
rc = ISCSI_ERR_BAD_ITT;
+done:
return rc;
}
EXPORT_SYMBOL_GPL(__iscsi_complete_pdu);
unsigned long flags;
spin_lock_irqsave(&session->lock, flags);
- if (session->conn_cnt == 1 || session->leadconn == conn)
+ if (session->state == ISCSI_STATE_FAILED) {
+ spin_unlock_irqrestore(&session->lock, flags);
+ return;
+ }
+
+ if (conn->stop_stage == 0)
session->state = ISCSI_STATE_FAILED;
spin_unlock_irqrestore(&session->lock, flags);
set_bit(ISCSI_SUSPEND_BIT, &conn->suspend_tx);
static int iscsi_data_xmit(struct iscsi_conn *conn)
{
struct iscsi_transport *tt;
+ int rc = 0;
if (unlikely(conn->suspend_tx)) {
debug_scsi("conn %d Tx suspended!\n", conn->id);
- return 0;
+ return -ENODATA;
}
tt = conn->session->tt;
BUG_ON(conn->ctask && conn->mtask);
if (conn->ctask) {
- if (tt->xmit_cmd_task(conn, conn->ctask))
+ rc = tt->xmit_cmd_task(conn, conn->ctask);
+ if (rc)
goto again;
/* done with this in-progress ctask */
conn->ctask = NULL;
}
if (conn->mtask) {
- if (tt->xmit_mgmt_task(conn, conn->mtask))
+ rc = tt->xmit_mgmt_task(conn, conn->mtask);
+ if (rc)
goto again;
/* done with this in-progress mtask */
conn->mtask = NULL;
if (unlikely(__kfifo_len(conn->immqueue))) {
while (__kfifo_get(conn->immqueue, (void*)&conn->mtask,
sizeof(void*))) {
+ spin_lock_bh(&conn->session->lock);
list_add_tail(&conn->mtask->running,
&conn->mgmt_run_list);
- if (tt->xmit_mgmt_task(conn, conn->mtask))
+ spin_unlock_bh(&conn->session->lock);
+ rc = tt->xmit_mgmt_task(conn, conn->mtask);
+ if (rc)
goto again;
}
/* done with this mtask */
* iscsi tcp may readd the task to the xmitqueue to send
* write data
*/
+ spin_lock_bh(&conn->session->lock);
if (list_empty(&conn->ctask->running))
list_add_tail(&conn->ctask->running, &conn->run_list);
- if (tt->xmit_cmd_task(conn, conn->ctask))
+ spin_unlock_bh(&conn->session->lock);
+ rc = tt->xmit_cmd_task(conn, conn->ctask);
+ if (rc)
goto again;
}
/* done with this ctask */
if (unlikely(__kfifo_len(conn->mgmtqueue))) {
while (__kfifo_get(conn->mgmtqueue, (void*)&conn->mtask,
sizeof(void*))) {
+ spin_lock_bh(&conn->session->lock);
list_add_tail(&conn->mtask->running,
&conn->mgmt_run_list);
- if (tt->xmit_mgmt_task(conn, conn->mtask))
+ spin_unlock_bh(&conn->session->lock);
+ rc = tt->xmit_mgmt_task(conn, conn->mtask);
+ if (rc)
goto again;
}
/* done with this mtask */
conn->mtask = NULL;
}
- return 0;
+ return -ENODATA;
again:
if (unlikely(conn->suspend_tx))
- return 0;
+ return -ENODATA;
- return -EAGAIN;
+ return rc;
}
static void iscsi_xmitworker(void *data)
{
struct iscsi_conn *conn = data;
-
+ int rc;
/*
* serialize Xmit worker on a per-connection basis.
*/
mutex_lock(&conn->xmitmutex);
- if (iscsi_data_xmit(conn))
- scsi_queue_work(conn->session->host, &conn->xmitwork);
+ do {
+ rc = iscsi_data_xmit(conn);
+ } while (rc >= 0 || rc == -EAGAIN);
mutex_unlock(&conn->xmitmutex);
}
FAILURE_SESSION_FREED,
FAILURE_WINDOW_CLOSED,
FAILURE_SESSION_TERMINATE,
+ FAILURE_SESSION_IN_RECOVERY,
FAILURE_SESSION_RECOVERY_TIMEOUT,
};
spin_lock(&session->lock);
- if (session->state != ISCSI_STATE_LOGGED_IN) {
- if (session->recovery_failed) {
- reason = FAILURE_SESSION_RECOVERY_TIMEOUT;
- goto fault;
- } else if (session->state == ISCSI_STATE_FAILED) {
- reason = FAILURE_SESSION_FAILED;
+ /*
+ * ISCSI_STATE_FAILED is a temp. state. The recovery
+ * code will decide what is best to do with command queued
+ * during this time
+ */
+ if (session->state != ISCSI_STATE_LOGGED_IN &&
+ session->state != ISCSI_STATE_FAILED) {
+ /*
+ * to handle the race between when we set the recovery state
+ * and block the session we requeue here (commands could
+ * be entering our queuecommand while a block is starting
+ * up because the block code is not locked)
+ */
+ if (session->state == ISCSI_STATE_IN_RECOVERY) {
+ reason = FAILURE_SESSION_IN_RECOVERY;
goto reject;
- } else if (session->state == ISCSI_STATE_TERMINATE) {
- reason = FAILURE_SESSION_TERMINATE;
- goto fault;
}
- reason = FAILURE_SESSION_FREED;
+
+ if (session->state == ISCSI_STATE_RECOVERY_FAILED)
+ reason = FAILURE_SESSION_RECOVERY_TIMEOUT;
+ else if (session->state == ISCSI_STATE_TERMINATE)
+ reason = FAILURE_SESSION_TERMINATE;
+ else
+ reason = FAILURE_SESSION_FREED;
goto fault;
}
*/
mtask = conn->login_mtask;
else {
- BUG_ON(conn->c_stage == ISCSI_CONN_INITIAL_STAGE);
- BUG_ON(conn->c_stage == ISCSI_CONN_STOPPED);
+ BUG_ON(conn->c_stage == ISCSI_CONN_INITIAL_STAGE);
+ BUG_ON(conn->c_stage == ISCSI_CONN_STOPPED);
+ nop->exp_statsn = cpu_to_be32(conn->exp_statsn);
if (!__kfifo_get(session->mgmtpool.queue,
(void*)&mtask, sizeof(void*))) {
spin_unlock_bh(&session->lock);
}
/*
- * pre-format CmdSN and ExpStatSN for outgoing PDU.
+ * pre-format CmdSN for outgoing PDU.
*/
if (hdr->itt != cpu_to_be32(ISCSI_RESERVED_TAG)) {
hdr->itt = mtask->itt | (conn->id << ISCSI_CID_SHIFT) |
/* do not advance CmdSN */
nop->cmdsn = cpu_to_be32(session->cmdsn);
- nop->exp_statsn = cpu_to_be32(conn->exp_statsn);
-
if (data_size) {
memcpy(mtask->data, data, data_size);
mtask->data_count = data_size;
spin_lock_bh(&session->lock);
if (session->state != ISCSI_STATE_LOGGED_IN) {
- session->recovery_failed = 1;
+ session->state = ISCSI_STATE_RECOVERY_FAILED;
if (conn)
wake_up(&conn->ehwait);
}
* we drop the lock here but the leadconn cannot be destoyed while
* we are in the scsi eh
*/
- if (fail_session) {
+ if (fail_session)
iscsi_conn_failure(conn, ISCSI_ERR_CONN_FAILED);
- /*
- * if userspace cannot respond then we must kick this off
- * here for it
- */
- iscsi_start_session_recovery(session, conn, STOP_CONN_RECOVER);
- }
debug_scsi("iscsi_eh_host_reset wait for relogin\n");
wait_event_interruptible(conn->ehwait,
session->state == ISCSI_STATE_TERMINATE ||
session->state == ISCSI_STATE_LOGGED_IN ||
- session->recovery_failed);
+ session->state == ISCSI_STATE_RECOVERY_FAILED);
if (signal_pending(current))
flush_signals(current);
wait_event_interruptible(conn->ehwait,
sc->SCp.phase != session->age ||
session->state != ISCSI_STATE_LOGGED_IN ||
- conn->tmabort_state != TMABORT_INITIAL ||
- session->recovery_failed);
+ conn->tmabort_state != TMABORT_INITIAL);
if (signal_pending(current))
flush_signals(current);
del_timer_sync(&conn->tmabort_timer);
\
if (task->itt == itt) { \
debug_scsi("matched task\n"); \
- break; \
+ return task; \
} \
\
__kfifo_put(fifo, (void*)&task, sizeof(void*)); \
if (mgmt_task_size)
mtask->dd_data = &mtask[1];
mtask->itt = ISCSI_MGMT_ITT_OFFSET + cmd_i;
- mtask->data = kmalloc(DEFAULT_MAX_RECV_DATA_SEGMENT_LENGTH,
- GFP_KERNEL);
- if (!mtask->data) {
- int j;
-
- for (j = 0; j < cmd_i; j++)
- kfree(session->mgmt_cmds[j]->data);
- goto immdata_alloc_fail;
- }
}
if (scsi_add_host(shost, NULL))
goto add_host_fail;
+ if (!try_module_get(iscsit->owner))
+ goto cls_session_fail;
+
cls_session = iscsi_create_session(shost, iscsit, 0);
if (!cls_session)
- goto cls_session_fail;
+ goto module_put;
*(unsigned long*)shost->hostdata = (unsigned long)cls_session;
return cls_session;
+module_put:
+ module_put(iscsit->owner);
cls_session_fail:
scsi_remove_host(shost);
add_host_fail:
- for (cmd_i = 0; cmd_i < session->mgmtpool_max; cmd_i++)
- kfree(session->mgmt_cmds[cmd_i]->data);
-immdata_alloc_fail:
iscsi_pool_free(&session->mgmtpool, (void**)session->mgmt_cmds);
mgmtpool_alloc_fail:
iscsi_pool_free(&session->cmdpool, (void**)session->cmds);
{
struct Scsi_Host *shost = iscsi_session_to_shost(cls_session);
struct iscsi_session *session = iscsi_hostdata(shost->hostdata);
- int cmd_i;
scsi_remove_host(shost);
- for (cmd_i = 0; cmd_i < session->mgmtpool_max; cmd_i++)
- kfree(session->mgmt_cmds[cmd_i]->data);
-
iscsi_pool_free(&session->mgmtpool, (void**)session->mgmt_cmds);
iscsi_pool_free(&session->cmdpool, (void**)session->cmds);
iscsi_destroy_session(cls_session);
scsi_host_put(shost);
+ module_put(cls_session->transport->owner);
}
EXPORT_SYMBOL_GPL(iscsi_session_teardown);
struct iscsi_session *session = class_to_transport_session(cls_session);
struct iscsi_conn *conn;
struct iscsi_cls_conn *cls_conn;
+ char *data;
cls_conn = iscsi_create_conn(cls_session, conn_idx);
if (!cls_conn)
}
spin_unlock_bh(&session->lock);
+ data = kmalloc(DEFAULT_MAX_RECV_DATA_SEGMENT_LENGTH, GFP_KERNEL);
+ if (!data)
+ goto login_mtask_data_alloc_fail;
+ conn->login_mtask->data = data;
+
init_timer(&conn->tmabort_timer);
mutex_init(&conn->xmitmutex);
init_waitqueue_head(&conn->ehwait);
return cls_conn;
+login_mtask_data_alloc_fail:
+ __kfifo_put(session->mgmtpool.queue, (void*)&conn->login_mtask,
+ sizeof(void*));
login_mtask_alloc_fail:
kfifo_free(conn->mgmtqueue);
mgmtqueue_alloc_fail:
struct iscsi_session *session = conn->session;
unsigned long flags;
- mutex_lock(&conn->xmitmutex);
set_bit(ISCSI_SUSPEND_BIT, &conn->suspend_tx);
+ mutex_lock(&conn->xmitmutex);
if (conn->c_stage == ISCSI_CONN_INITIAL_STAGE) {
if (session->tt->suspend_conn_recv)
session->tt->suspend_conn_recv(conn);
}
spin_lock_bh(&session->lock);
+ kfree(conn->login_mtask->data);
__kfifo_put(session->mgmtpool.queue, (void*)&conn->login_mtask,
sizeof(void*));
list_del(&conn->item);
* unblock eh_abort() if it is blocked. re-try all
* commands after successful recovery
*/
- session->conn_cnt++;
conn->stop_stage = 0;
conn->tmabort_state = TMABORT_INITIAL;
session->age++;
- session->recovery_failed = 0;
spin_unlock_bh(&session->lock);
iscsi_unblock_session(session_to_cls(session));
wake_up(&conn->ehwait);
return 0;
case STOP_CONN_TERM:
- session->conn_cnt++;
conn->stop_stage = 0;
break;
- case STOP_CONN_SUSPEND:
- conn->stop_stage = 0;
- clear_bit(ISCSI_SUSPEND_BIT, &conn->suspend_rx);
- clear_bit(ISCSI_SUSPEND_BIT, &conn->suspend_tx);
- break;
default:
break;
}
conn->ctask = NULL;
}
-void iscsi_start_session_recovery(struct iscsi_session *session,
- struct iscsi_conn *conn, int flag)
+static void iscsi_start_session_recovery(struct iscsi_session *session,
+ struct iscsi_conn *conn, int flag)
{
int old_stop_stage;
/*
* When this is called for the in_login state, we only want to clean
- * up the login task and connection.
+ * up the login task and connection. We do not need to block and set
+ * the recovery state again
*/
- if (conn->stop_stage != STOP_CONN_RECOVER)
- session->conn_cnt--;
+ if (flag == STOP_CONN_TERM)
+ session->state = ISCSI_STATE_TERMINATE;
+ else if (conn->stop_stage != STOP_CONN_RECOVER)
+ session->state = ISCSI_STATE_IN_RECOVERY;
old_stop_stage = conn->stop_stage;
conn->stop_stage = flag;
+ conn->c_stage = ISCSI_CONN_STOPPED;
+ set_bit(ISCSI_SUSPEND_BIT, &conn->suspend_tx);
spin_unlock_bh(&session->lock);
if (session->tt->suspend_conn_recv)
session->tt->suspend_conn_recv(conn);
mutex_lock(&conn->xmitmutex);
- spin_lock_bh(&session->lock);
- conn->c_stage = ISCSI_CONN_STOPPED;
- set_bit(ISCSI_SUSPEND_BIT, &conn->suspend_tx);
-
- if (session->conn_cnt == 0 || session->leadconn == conn)
- session->state = ISCSI_STATE_FAILED;
-
- spin_unlock_bh(&session->lock);
-
- session->tt->terminate_conn(conn);
- /*
- * flush queues.
- */
- spin_lock_bh(&session->lock);
- fail_all_commands(conn);
- flush_control_queues(session, conn);
- spin_unlock_bh(&session->lock);
-
/*
* for connection level recovery we should not calculate
* header digest. conn->hdr_size used for optimization
if (flag == STOP_CONN_RECOVER) {
conn->hdrdgst_en = 0;
conn->datadgst_en = 0;
-
- /*
- * if this is called from the eh and and from userspace
- * then we only need to block once.
- */
- if (session->state == ISCSI_STATE_FAILED &&
- old_stop_stage != STOP_CONN_RECOVER)
+ if (session->state == ISCSI_STATE_IN_RECOVERY &&
+ old_stop_stage != STOP_CONN_RECOVER) {
+ debug_scsi("blocking session\n");
iscsi_block_session(session_to_cls(session));
+ }
}
+
+ session->tt->terminate_conn(conn);
+ /*
+ * flush queues.
+ */
+ spin_lock_bh(&session->lock);
+ fail_all_commands(conn);
+ flush_control_queues(session, conn);
+ spin_unlock_bh(&session->lock);
+
mutex_unlock(&conn->xmitmutex);
}
-EXPORT_SYMBOL_GPL(iscsi_start_session_recovery);
void iscsi_conn_stop(struct iscsi_cls_conn *cls_conn, int flag)
{
case STOP_CONN_RECOVER:
case STOP_CONN_TERM:
iscsi_start_session_recovery(session, conn, flag);
- return;
- case STOP_CONN_SUSPEND:
- if (session->tt->suspend_conn_recv)
- session->tt->suspend_conn_recv(conn);
-
- mutex_lock(&conn->xmitmutex);
- spin_lock_bh(&session->lock);
-
- conn->stop_stage = flag;
- conn->c_stage = ISCSI_CONN_STOPPED;
- set_bit(ISCSI_SUSPEND_BIT, &conn->suspend_tx);
-
- spin_unlock_bh(&session->lock);
- mutex_unlock(&conn->xmitmutex);
break;
default:
printk(KERN_ERR "iscsi: invalid stop flag %d\n", flag);
}
EXPORT_SYMBOL_GPL(iscsi_conn_bind);
+
+int iscsi_set_param(struct iscsi_cls_conn *cls_conn,
+ enum iscsi_param param, char *buf, int buflen)
+{
+ struct iscsi_conn *conn = cls_conn->dd_data;
+ struct iscsi_session *session = conn->session;
+ uint32_t value;
+
+ switch(param) {
+ case ISCSI_PARAM_MAX_RECV_DLENGTH:
+ sscanf(buf, "%d", &conn->max_recv_dlength);
+ break;
+ case ISCSI_PARAM_MAX_XMIT_DLENGTH:
+ sscanf(buf, "%d", &conn->max_xmit_dlength);
+ break;
+ case ISCSI_PARAM_HDRDGST_EN:
+ sscanf(buf, "%d", &conn->hdrdgst_en);
+ break;
+ case ISCSI_PARAM_DATADGST_EN:
+ sscanf(buf, "%d", &conn->datadgst_en);
+ break;
+ case ISCSI_PARAM_INITIAL_R2T_EN:
+ sscanf(buf, "%d", &session->initial_r2t_en);
+ break;
+ case ISCSI_PARAM_MAX_R2T:
+ sscanf(buf, "%d", &session->max_r2t);
+ break;
+ case ISCSI_PARAM_IMM_DATA_EN:
+ sscanf(buf, "%d", &session->imm_data_en);
+ break;
+ case ISCSI_PARAM_FIRST_BURST:
+ sscanf(buf, "%d", &session->first_burst);
+ break;
+ case ISCSI_PARAM_MAX_BURST:
+ sscanf(buf, "%d", &session->max_burst);
+ break;
+ case ISCSI_PARAM_PDU_INORDER_EN:
+ sscanf(buf, "%d", &session->pdu_inorder_en);
+ break;
+ case ISCSI_PARAM_DATASEQ_INORDER_EN:
+ sscanf(buf, "%d", &session->dataseq_inorder_en);
+ break;
+ case ISCSI_PARAM_ERL:
+ sscanf(buf, "%d", &session->erl);
+ break;
+ case ISCSI_PARAM_IFMARKER_EN:
+ sscanf(buf, "%d", &value);
+ BUG_ON(value);
+ break;
+ case ISCSI_PARAM_OFMARKER_EN:
+ sscanf(buf, "%d", &value);
+ BUG_ON(value);
+ break;
+ case ISCSI_PARAM_EXP_STATSN:
+ sscanf(buf, "%u", &conn->exp_statsn);
+ break;
+ case ISCSI_PARAM_TARGET_NAME:
+ /* this should not change between logins */
+ if (session->targetname)
+ break;
+
+ session->targetname = kstrdup(buf, GFP_KERNEL);
+ if (!session->targetname)
+ return -ENOMEM;
+ break;
+ case ISCSI_PARAM_TPGT:
+ sscanf(buf, "%d", &session->tpgt);
+ break;
+ case ISCSI_PARAM_PERSISTENT_PORT:
+ sscanf(buf, "%d", &conn->persistent_port);
+ break;
+ case ISCSI_PARAM_PERSISTENT_ADDRESS:
+ /*
+ * this is the address returned in discovery so it should
+ * not change between logins.
+ */
+ if (conn->persistent_address)
+ break;
+
+ conn->persistent_address = kstrdup(buf, GFP_KERNEL);
+ if (!conn->persistent_address)
+ return -ENOMEM;
+ break;
+ default:
+ return -ENOSYS;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(iscsi_set_param);
+
+int iscsi_session_get_param(struct iscsi_cls_session *cls_session,
+ enum iscsi_param param, char *buf)
+{
+ struct Scsi_Host *shost = iscsi_session_to_shost(cls_session);
+ struct iscsi_session *session = iscsi_hostdata(shost->hostdata);
+ int len;
+
+ switch(param) {
+ case ISCSI_PARAM_INITIAL_R2T_EN:
+ len = sprintf(buf, "%d\n", session->initial_r2t_en);
+ break;
+ case ISCSI_PARAM_MAX_R2T:
+ len = sprintf(buf, "%hu\n", session->max_r2t);
+ break;
+ case ISCSI_PARAM_IMM_DATA_EN:
+ len = sprintf(buf, "%d\n", session->imm_data_en);
+ break;
+ case ISCSI_PARAM_FIRST_BURST:
+ len = sprintf(buf, "%u\n", session->first_burst);
+ break;
+ case ISCSI_PARAM_MAX_BURST:
+ len = sprintf(buf, "%u\n", session->max_burst);
+ break;
+ case ISCSI_PARAM_PDU_INORDER_EN:
+ len = sprintf(buf, "%d\n", session->pdu_inorder_en);
+ break;
+ case ISCSI_PARAM_DATASEQ_INORDER_EN:
+ len = sprintf(buf, "%d\n", session->dataseq_inorder_en);
+ break;
+ case ISCSI_PARAM_ERL:
+ len = sprintf(buf, "%d\n", session->erl);
+ break;
+ case ISCSI_PARAM_TARGET_NAME:
+ len = sprintf(buf, "%s\n", session->targetname);
+ break;
+ case ISCSI_PARAM_TPGT:
+ len = sprintf(buf, "%d\n", session->tpgt);
+ break;
+ default:
+ return -ENOSYS;
+ }
+
+ return len;
+}
+EXPORT_SYMBOL_GPL(iscsi_session_get_param);
+
+int iscsi_conn_get_param(struct iscsi_cls_conn *cls_conn,
+ enum iscsi_param param, char *buf)
+{
+ struct iscsi_conn *conn = cls_conn->dd_data;
+ int len;
+
+ switch(param) {
+ case ISCSI_PARAM_MAX_RECV_DLENGTH:
+ len = sprintf(buf, "%u\n", conn->max_recv_dlength);
+ break;
+ case ISCSI_PARAM_MAX_XMIT_DLENGTH:
+ len = sprintf(buf, "%u\n", conn->max_xmit_dlength);
+ break;
+ case ISCSI_PARAM_HDRDGST_EN:
+ len = sprintf(buf, "%d\n", conn->hdrdgst_en);
+ break;
+ case ISCSI_PARAM_DATADGST_EN:
+ len = sprintf(buf, "%d\n", conn->datadgst_en);
+ break;
+ case ISCSI_PARAM_IFMARKER_EN:
+ len = sprintf(buf, "%d\n", conn->ifmarker_en);
+ break;
+ case ISCSI_PARAM_OFMARKER_EN:
+ len = sprintf(buf, "%d\n", conn->ofmarker_en);
+ break;
+ case ISCSI_PARAM_EXP_STATSN:
+ len = sprintf(buf, "%u\n", conn->exp_statsn);
+ break;
+ case ISCSI_PARAM_PERSISTENT_PORT:
+ len = sprintf(buf, "%d\n", conn->persistent_port);
+ break;
+ case ISCSI_PARAM_PERSISTENT_ADDRESS:
+ len = sprintf(buf, "%s\n", conn->persistent_address);
+ break;
+ default:
+ return -ENOSYS;
+ }
+
+ return len;
+}
+EXPORT_SYMBOL_GPL(iscsi_conn_get_param);
+
MODULE_AUTHOR("Mike Christie");
MODULE_DESCRIPTION("iSCSI library functions");
MODULE_LICENSE("GPL");
projects / powerpc.git / blobdiff