}
if (rhdr->cmd_status == SAM_STAT_CHECK_CONDITION) {
- int senselen;
+ uint16_t senselen;
if (datalen < 2) {
invalid_datalen:
goto out;
}
- senselen = (data[0] << 8) | data[1];
+ senselen = be16_to_cpu(*(uint16_t *)data);
if (datalen < senselen)
goto invalid_datalen;
memcpy(sc->sense_buffer, data + 2,
- min(senselen, SCSI_SENSE_BUFFERSIZE));
+ min_t(uint16_t, senselen, SCSI_SENSE_BUFFERSIZE));
debug_scsi("copied %d bytes of sense\n",
min(senselen, SCSI_SENSE_BUFFERSIZE));
}
break;
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;
+ if (iscsi_recv_pdu(conn->cls_conn, hdr, data, datalen))
+ rc = ISCSI_ERR_CONN_FAILED;
break;
default:
rc = ISCSI_ERR_BAD_OPCODE;
}
EXPORT_SYMBOL_GPL(iscsi_conn_failure);
+static int iscsi_xmit_imm_task(struct iscsi_conn *conn)
+{
+ struct iscsi_hdr *hdr = conn->mtask->hdr;
+ int rc, was_logout = 0;
+
+ if ((hdr->opcode & ISCSI_OPCODE_MASK) == ISCSI_OP_LOGOUT) {
+ conn->session->state = ISCSI_STATE_IN_RECOVERY;
+ iscsi_block_session(session_to_cls(conn->session));
+ was_logout = 1;
+ }
+ rc = conn->session->tt->xmit_mgmt_task(conn, conn->mtask);
+ if (rc)
+ return rc;
+
+ if (was_logout) {
+ set_bit(ISCSI_SUSPEND_BIT, &conn->suspend_tx);
+ return -ENODATA;
+ }
+ return 0;
+}
+
/**
* iscsi_data_xmit - xmit any command into the scheduled connection
* @conn: iscsi connection
conn->ctask = NULL;
}
if (conn->mtask) {
- rc = tt->xmit_mgmt_task(conn, conn->mtask);
+ rc = iscsi_xmit_imm_task(conn);
if (rc)
goto again;
/* done with this in-progress mtask */
list_add_tail(&conn->mtask->running,
&conn->mgmt_run_list);
spin_unlock_bh(&conn->session->lock);
- rc = tt->xmit_mgmt_task(conn, conn->mtask);
+ rc = iscsi_xmit_imm_task(conn);
if (rc)
goto again;
}
spin_unlock_bh(&conn->session->lock);
rc = tt->xmit_cmd_task(conn, conn->ctask);
- if (rc)
- goto again;
spin_lock_bh(&conn->session->lock);
__iscsi_put_ctask(conn->ctask);
return rc;
}
-static void iscsi_xmitworker(void *data)
+static void iscsi_xmitworker(struct work_struct *work)
{
- struct iscsi_conn *conn = data;
+ struct iscsi_conn *conn =
+ container_of(work, struct iscsi_conn, xmitwork);
int rc;
/*
* serialize Xmit worker on a per-connection basis.
}
conn = session->leadconn;
+ if (!conn) {
+ reason = FAILURE_SESSION_FREED;
+ goto fault;
+ }
if (!__kfifo_get(session->cmdpool.queue, (void*)&ctask,
sizeof(void*))) {
if (session->state == ISCSI_STATE_TERMINATE) {
failed:
debug_scsi("failing host reset: session terminated "
- "[CID %d age %d]", conn->id, session->age);
+ "[CID %d age %d]\n", conn->id, session->age);
spin_unlock_bh(&session->lock);
return FAILED;
}
if (sc->SCp.phase == session->age) {
- debug_scsi("failing connection CID %d due to SCSI host reset",
+ debug_scsi("failing connection CID %d due to SCSI host reset\n",
conn->id);
fail_session = 1;
}
NULL, 0);
if (rc) {
iscsi_conn_failure(conn, ISCSI_ERR_CONN_FAILED);
- debug_scsi("abort sent failure [itt 0x%x] %d", ctask->itt, rc);
+ debug_scsi("abort sent failure [itt 0x%x] %d\n", ctask->itt,
+ rc);
return rc;
}
conn->tmabort_timer.function = iscsi_tmabort_timedout;
conn->tmabort_timer.data = (unsigned long)ctask;
add_timer(&conn->tmabort_timer);
- debug_scsi("abort set timeout [itt 0x%x]", ctask->itt);
+ debug_scsi("abort set timeout [itt 0x%x]\n", ctask->itt);
}
spin_unlock_bh(&session->lock);
mutex_unlock(&conn->xmitmutex);
}
spin_lock_init(&session->lock);
- INIT_LIST_HEAD(&session->connections);
/* initialize immediate command pool */
if (iscsi_pool_init(&session->mgmtpool, session->mgmtpool_max,
if (conn->mgmtqueue == ERR_PTR(-ENOMEM))
goto mgmtqueue_alloc_fail;
- INIT_WORK(&conn->xmitwork, iscsi_xmitworker, conn);
+ INIT_WORK(&conn->xmitwork, iscsi_xmitworker);
/* allocate login_mtask used for the login/text sequences */
spin_lock_bh(&session->lock);
kfree(conn->persistent_address);
__kfifo_put(session->mgmtpool.queue, (void*)&conn->login_mtask,
sizeof(void*));
- list_del(&conn->item);
- if (list_empty(&session->connections))
+ if (session->leadconn == conn) {
session->leadconn = NULL;
- if (session->leadconn && session->leadconn == conn)
- session->leadconn = container_of(session->connections.next,
- struct iscsi_conn, item);
-
- if (session->leadconn == NULL)
/* no connections exits.. reset sequencing */
session->cmdsn = session->max_cmdsn = session->exp_cmdsn = 1;
+ }
spin_unlock_bh(&session->lock);
kfifo_free(conn->immqueue);
struct iscsi_cls_conn *cls_conn, int is_leading)
{
struct iscsi_session *session = class_to_transport_session(cls_session);
- struct iscsi_conn *tmp = ERR_PTR(-EEXIST), *conn = cls_conn->dd_data;
+ struct iscsi_conn *conn = cls_conn->dd_data;
- /* lookup for existing connection */
spin_lock_bh(&session->lock);
- list_for_each_entry(tmp, &session->connections, item) {
- if (tmp == conn) {
- if (conn->c_stage != ISCSI_CONN_STOPPED ||
- conn->stop_stage == STOP_CONN_TERM) {
- printk(KERN_ERR "iscsi: can't bind "
- "non-stopped connection (%d:%d)\n",
- conn->c_stage, conn->stop_stage);
- spin_unlock_bh(&session->lock);
- return -EIO;
- }
- break;
- }
- }
- if (tmp != conn) {
- /* bind new iSCSI connection to session */
- conn->session = session;
- list_add(&conn->item, &session->connections);
- }
- spin_unlock_bh(&session->lock);
-
if (is_leading)
session->leadconn = conn;
+ spin_unlock_bh(&session->lock);
/*
* Unblock xmitworker(), Login Phase will pass through.
git.openpandora.org / pandora-kernel.git / blobdiff