diff options
author | Paul Mackerras <paulus@samba.org> | 2006-12-04 15:59:07 +1100 |
---|---|---|
committer | Paul Mackerras <paulus@samba.org> | 2006-12-04 15:59:07 +1100 |
commit | 79acbb3ff2d8095b692e1502b9eb2ccec348de26 (patch) | |
tree | 6ab773e5a8f9de2cd6443362b21d0d6fffe3b35e /drivers/scsi/libiscsi.c | |
parent | 19a79859e168640f8e16d7b216d211c1c52b687a (diff) | |
parent | 2b5f6dcce5bf94b9b119e9ed8d537098ec61c3d2 (diff) |
Merge branch 'linux-2.6' into for-linus
Diffstat (limited to 'drivers/scsi/libiscsi.c')
-rw-r--r-- | drivers/scsi/libiscsi.c | 78 |
1 files changed, 38 insertions, 40 deletions
diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c index c542d0e95e68..5d8862189485 100644 --- a/drivers/scsi/libiscsi.c +++ b/drivers/scsi/libiscsi.c @@ -481,8 +481,8 @@ int __iscsi_complete_pdu(struct iscsi_conn *conn, struct iscsi_hdr *hdr, 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; @@ -578,6 +578,27 @@ void iscsi_conn_failure(struct iscsi_conn *conn, enum iscsi_err err) } 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 @@ -623,7 +644,7 @@ static int iscsi_data_xmit(struct iscsi_conn *conn) 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 */ @@ -638,7 +659,7 @@ static int iscsi_data_xmit(struct iscsi_conn *conn) 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; } @@ -661,8 +682,6 @@ static int iscsi_data_xmit(struct iscsi_conn *conn) 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); @@ -778,6 +797,10 @@ int iscsi_queuecommand(struct scsi_cmnd *sc, void (*done)(struct scsi_cmnd *)) } conn = session->leadconn; + if (!conn) { + reason = FAILURE_SESSION_FREED; + goto fault; + } if (!__kfifo_get(session->cmdpool.queue, (void*)&ctask, sizeof(void*))) { @@ -952,13 +975,13 @@ int iscsi_eh_host_reset(struct scsi_cmnd *sc) 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; } @@ -1031,7 +1054,8 @@ static int iscsi_exec_abort_task(struct scsi_cmnd *sc, 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; } @@ -1048,7 +1072,7 @@ static int iscsi_exec_abort_task(struct scsi_cmnd *sc, 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); @@ -1377,7 +1401,6 @@ iscsi_session_setup(struct iscsi_transport *iscsit, } spin_lock_init(&session->lock); - INIT_LIST_HEAD(&session->connections); /* initialize immediate command pool */ if (iscsi_pool_init(&session->mgmtpool, session->mgmtpool_max, @@ -1580,16 +1603,11 @@ void iscsi_conn_teardown(struct iscsi_cls_conn *cls_conn) 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); @@ -1777,32 +1795,12 @@ int iscsi_conn_bind(struct iscsi_cls_session *cls_session, 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. |