Lines Matching refs:conn
86 inline void iscsi_conn_queue_work(struct iscsi_conn *conn) in iscsi_conn_queue_work() argument
88 struct Scsi_Host *shost = conn->session->host; in iscsi_conn_queue_work()
92 queue_work(ihost->workq, &conn->xmitwork); in iscsi_conn_queue_work()
137 struct iscsi_conn *conn = task->conn; in iscsi_prep_data_out_pdu() local
151 if (left > conn->max_xmit_dlength) { in iscsi_prep_data_out_pdu()
152 hton24(hdr->dlength, conn->max_xmit_dlength); in iscsi_prep_data_out_pdu()
153 r2t->data_count = conn->max_xmit_dlength; in iscsi_prep_data_out_pdu()
160 conn->dataout_pdus_cnt++; in iscsi_prep_data_out_pdu()
210 ISCSI_DBG_SESSION(task->conn->session, in iscsi_prep_ecdb_ahs()
233 struct iscsi_conn *conn = task->conn; in iscsi_check_tmf_restrictions() local
234 struct iscsi_tm *tmf = &conn->tmhdr; in iscsi_check_tmf_restrictions()
237 if (conn->tmf_state == TMF_INITIAL) in iscsi_check_tmf_restrictions()
257 iscsi_conn_printk(KERN_INFO, conn, in iscsi_check_tmf_restrictions()
269 if (conn->session->fast_abort) { in iscsi_check_tmf_restrictions()
270 iscsi_conn_printk(KERN_INFO, conn, in iscsi_check_tmf_restrictions()
287 ISCSI_DBG_SESSION(conn->session, in iscsi_check_tmf_restrictions()
309 struct iscsi_conn *conn = task->conn; in iscsi_prep_scsi_cmd_pdu() local
310 struct iscsi_session *session = conn->session; in iscsi_prep_scsi_cmd_pdu()
321 if (conn->session->tt->alloc_pdu) { in iscsi_prep_scsi_cmd_pdu()
322 rc = conn->session->tt->alloc_pdu(task, ISCSI_OP_SCSI_CMD); in iscsi_prep_scsi_cmd_pdu()
334 task->conn->session->age); in iscsi_prep_scsi_cmd_pdu()
343 hdr->exp_statsn = cpu_to_be32(conn->exp_statsn); in iscsi_prep_scsi_cmd_pdu()
384 conn->max_xmit_dlength); in iscsi_prep_scsi_cmd_pdu()
387 conn->max_xmit_dlength); in iscsi_prep_scsi_cmd_pdu()
398 r2t->exp_statsn = cpu_to_be32(conn->exp_statsn); in iscsi_prep_scsi_cmd_pdu()
428 conn->scsicmd_pdus_cnt++; in iscsi_prep_scsi_cmd_pdu()
432 "write" : "read", conn->id, sc, sc->cmnd[0], in iscsi_prep_scsi_cmd_pdu()
449 struct iscsi_conn *conn = task->conn; in iscsi_free_task() local
450 struct iscsi_session *session = conn->session; in iscsi_free_task()
463 if (conn->login_task == task) in iscsi_free_task()
495 struct iscsi_session *session = task->conn->session; in iscsi_put_task()
513 struct iscsi_conn *conn = task->conn; in iscsi_complete_task() local
515 ISCSI_DBG_SESSION(conn->session, in iscsi_complete_task()
526 spin_lock_bh(&conn->taskqueuelock); in iscsi_complete_task()
531 spin_unlock_bh(&conn->taskqueuelock); in iscsi_complete_task()
533 if (conn->task == task) in iscsi_complete_task()
534 conn->task = NULL; in iscsi_complete_task()
536 if (conn->ping_task == task) in iscsi_complete_task()
537 conn->ping_task = NULL; in iscsi_complete_task()
557 struct iscsi_conn *conn = task->conn; in iscsi_complete_scsi_task() local
559 ISCSI_DBG_SESSION(conn->session, "[itt 0x%x]\n", task->itt); in iscsi_complete_scsi_task()
561 conn->last_recv = jiffies; in iscsi_complete_scsi_task()
562 __iscsi_update_cmdsn(conn->session, exp_cmdsn, max_cmdsn); in iscsi_complete_scsi_task()
575 struct iscsi_conn *conn = task->conn; in fail_scsi_task() local
593 conn->session->queued_cmdsn--; in fail_scsi_task()
605 spin_lock_bh(&conn->session->back_lock); in fail_scsi_task()
607 spin_unlock_bh(&conn->session->back_lock); in fail_scsi_task()
610 static int iscsi_prep_mgmt_task(struct iscsi_conn *conn, in iscsi_prep_mgmt_task() argument
613 struct iscsi_session *session = conn->session; in iscsi_prep_mgmt_task()
618 if (conn->session->state == ISCSI_STATE_LOGGING_OUT) in iscsi_prep_mgmt_task()
622 nop->exp_statsn = cpu_to_be32(conn->exp_statsn); in iscsi_prep_mgmt_task()
636 if (conn->c_stage == ISCSI_CONN_STARTED && in iscsi_prep_mgmt_task()
657 __iscsi_conn_send_pdu(struct iscsi_conn *conn, struct iscsi_hdr *hdr, in __iscsi_conn_send_pdu() argument
660 struct iscsi_session *session = conn->session; in __iscsi_conn_send_pdu()
676 if (conn->login_task->state != ISCSI_TASK_FREE) { in __iscsi_conn_send_pdu()
677 iscsi_conn_printk(KERN_ERR, conn, "Login/Text in " in __iscsi_conn_send_pdu()
683 …iscsi_conn_printk(KERN_ERR, conn, "Invalid buffer len of %u for login task. Max len is %u\n", data… in __iscsi_conn_send_pdu()
687 task = conn->login_task; in __iscsi_conn_send_pdu()
693 …iscsi_conn_printk(KERN_ERR, conn, "Can not send data buffer of len %u for op 0x%x\n", data_size, o… in __iscsi_conn_send_pdu()
697 BUG_ON(conn->c_stage == ISCSI_CONN_INITIAL_STAGE); in __iscsi_conn_send_pdu()
698 BUG_ON(conn->c_stage == ISCSI_CONN_STOPPED); in __iscsi_conn_send_pdu()
710 task->conn = conn; in __iscsi_conn_send_pdu()
721 if (conn->session->tt->alloc_pdu) { in __iscsi_conn_send_pdu()
722 if (conn->session->tt->alloc_pdu(task, hdr->opcode)) { in __iscsi_conn_send_pdu()
723 iscsi_conn_printk(KERN_ERR, conn, "Could not allocate " in __iscsi_conn_send_pdu()
738 task->conn->session->age); in __iscsi_conn_send_pdu()
742 if (iscsi_prep_mgmt_task(conn, task)) in __iscsi_conn_send_pdu()
748 spin_lock_bh(&conn->taskqueuelock); in __iscsi_conn_send_pdu()
749 list_add_tail(&task->running, &conn->mgmtqueue); in __iscsi_conn_send_pdu()
750 spin_unlock_bh(&conn->taskqueuelock); in __iscsi_conn_send_pdu()
751 iscsi_conn_queue_work(conn); in __iscsi_conn_send_pdu()
767 struct iscsi_conn *conn = cls_conn->dd_data; in iscsi_conn_send_pdu() local
768 struct iscsi_session *session = conn->session; in iscsi_conn_send_pdu()
772 if (!__iscsi_conn_send_pdu(conn, hdr, data, data_size)) in iscsi_conn_send_pdu()
790 static void iscsi_scsi_cmd_rsp(struct iscsi_conn *conn, struct iscsi_hdr *hdr, in iscsi_scsi_cmd_rsp() argument
795 struct iscsi_session *session = conn->session; in iscsi_scsi_cmd_rsp()
799 conn->exp_statsn = be32_to_cpu(rhdr->statsn) + 1; in iscsi_scsi_cmd_rsp()
837 iscsi_conn_printk(KERN_ERR, conn, in iscsi_scsi_cmd_rsp()
875 conn->scsirsp_pdus_cnt++; in iscsi_scsi_cmd_rsp()
889 iscsi_data_in_rsp(struct iscsi_conn *conn, struct iscsi_hdr *hdr, in iscsi_data_in_rsp() argument
898 iscsi_update_cmdsn(conn->session, (struct iscsi_nopin *)hdr); in iscsi_data_in_rsp()
900 conn->exp_statsn = be32_to_cpu(rhdr->statsn) + 1; in iscsi_data_in_rsp()
913 ISCSI_DBG_SESSION(conn->session, "data in with status done " in iscsi_data_in_rsp()
916 conn->scsirsp_pdus_cnt++; in iscsi_data_in_rsp()
920 static void iscsi_tmf_rsp(struct iscsi_conn *conn, struct iscsi_hdr *hdr) in iscsi_tmf_rsp() argument
924 conn->exp_statsn = be32_to_cpu(hdr->statsn) + 1; in iscsi_tmf_rsp()
925 conn->tmfrsp_pdus_cnt++; in iscsi_tmf_rsp()
927 if (conn->tmf_state != TMF_QUEUED) in iscsi_tmf_rsp()
931 conn->tmf_state = TMF_SUCCESS; in iscsi_tmf_rsp()
933 conn->tmf_state = TMF_NOT_FOUND; in iscsi_tmf_rsp()
935 conn->tmf_state = TMF_FAILED; in iscsi_tmf_rsp()
936 wake_up(&conn->ehwait); in iscsi_tmf_rsp()
939 static int iscsi_send_nopout(struct iscsi_conn *conn, struct iscsi_nopin *rhdr) in iscsi_send_nopout() argument
944 if (!rhdr && conn->ping_task) in iscsi_send_nopout()
958 task = __iscsi_conn_send_pdu(conn, (struct iscsi_hdr *)&hdr, NULL, 0); in iscsi_send_nopout()
960 iscsi_conn_printk(KERN_ERR, conn, "Could not send nopout\n"); in iscsi_send_nopout()
964 conn->ping_task = task; in iscsi_send_nopout()
965 conn->last_ping = jiffies; in iscsi_send_nopout()
984 struct iscsi_conn *conn = task->conn; in iscsi_nop_out_rsp() local
987 if (conn->ping_task != task) { in iscsi_nop_out_rsp()
992 if (iscsi_recv_pdu(conn->cls_conn, (struct iscsi_hdr *)nop, in iscsi_nop_out_rsp()
996 mod_timer(&conn->transport_timer, jiffies + conn->recv_timeout); in iscsi_nop_out_rsp()
1001 static int iscsi_handle_reject(struct iscsi_conn *conn, struct iscsi_hdr *hdr, in iscsi_handle_reject() argument
1008 conn->exp_statsn = be32_to_cpu(reject->statsn) + 1; in iscsi_handle_reject()
1012 iscsi_conn_printk(KERN_ERR, conn, "Cannot handle rejected " in iscsi_handle_reject()
1023 iscsi_conn_printk(KERN_ERR, conn, in iscsi_handle_reject()
1029 iscsi_conn_printk(KERN_ERR, conn, in iscsi_handle_reject()
1050 spin_unlock(&conn->session->back_lock); in iscsi_handle_reject()
1051 spin_lock(&conn->session->frwd_lock); in iscsi_handle_reject()
1052 iscsi_send_nopout(conn, in iscsi_handle_reject()
1054 spin_unlock(&conn->session->frwd_lock); in iscsi_handle_reject()
1055 spin_lock(&conn->session->back_lock); in iscsi_handle_reject()
1062 task = iscsi_itt_to_task(conn, rejected_pdu.itt); in iscsi_handle_reject()
1064 iscsi_conn_printk(KERN_ERR, conn, in iscsi_handle_reject()
1075 iscsi_conn_printk(KERN_ERR, conn, in iscsi_handle_reject()
1094 struct iscsi_task *iscsi_itt_to_task(struct iscsi_conn *conn, itt_t itt) in iscsi_itt_to_task() argument
1096 struct iscsi_session *session = conn->session; in iscsi_itt_to_task()
1103 session->tt->parse_pdu_itt(conn, itt, &i, NULL); in iscsi_itt_to_task()
1124 int __iscsi_complete_pdu(struct iscsi_conn *conn, struct iscsi_hdr *hdr, in __iscsi_complete_pdu() argument
1127 struct iscsi_session *session = conn->session; in __iscsi_complete_pdu()
1132 conn->last_recv = jiffies; in __iscsi_complete_pdu()
1133 rc = iscsi_verify_itt(conn, hdr->itt); in __iscsi_complete_pdu()
1143 opcode, conn->id, itt, datalen); in __iscsi_complete_pdu()
1161 iscsi_send_nopout(conn, (struct iscsi_nopin*)hdr); in __iscsi_complete_pdu()
1166 rc = iscsi_handle_reject(conn, hdr, data, datalen); in __iscsi_complete_pdu()
1169 conn->exp_statsn = be32_to_cpu(hdr->statsn) + 1; in __iscsi_complete_pdu()
1170 if (iscsi_recv_pdu(conn->cls_conn, hdr, data, datalen)) in __iscsi_complete_pdu()
1183 task = iscsi_itt_to_ctask(conn, hdr->itt); in __iscsi_complete_pdu()
1198 task = iscsi_itt_to_task(conn, hdr->itt); in __iscsi_complete_pdu()
1208 iscsi_scsi_cmd_rsp(conn, hdr, task, data, datalen); in __iscsi_complete_pdu()
1211 iscsi_data_in_rsp(conn, hdr, task); in __iscsi_complete_pdu()
1219 conn->exp_statsn = be32_to_cpu(hdr->statsn) + 1; in __iscsi_complete_pdu()
1236 iscsi_tmf_rsp(conn, hdr); in __iscsi_complete_pdu()
1245 conn->exp_statsn = be32_to_cpu(hdr->statsn) + 1; in __iscsi_complete_pdu()
1258 if (iscsi_recv_pdu(conn->cls_conn, hdr, data, datalen)) in __iscsi_complete_pdu()
1265 int iscsi_complete_pdu(struct iscsi_conn *conn, struct iscsi_hdr *hdr, in iscsi_complete_pdu() argument
1270 spin_lock(&conn->session->back_lock); in iscsi_complete_pdu()
1271 rc = __iscsi_complete_pdu(conn, hdr, data, datalen); in iscsi_complete_pdu()
1272 spin_unlock(&conn->session->back_lock); in iscsi_complete_pdu()
1277 int iscsi_verify_itt(struct iscsi_conn *conn, itt_t itt) in iscsi_verify_itt() argument
1279 struct iscsi_session *session = conn->session; in iscsi_verify_itt()
1286 session->tt->parse_pdu_itt(conn, itt, &i, &age); in iscsi_verify_itt()
1293 iscsi_conn_printk(KERN_ERR, conn, in iscsi_verify_itt()
1300 iscsi_conn_printk(KERN_ERR, conn, in iscsi_verify_itt()
1318 struct iscsi_task *iscsi_itt_to_ctask(struct iscsi_conn *conn, itt_t itt) in iscsi_itt_to_ctask() argument
1322 if (iscsi_verify_itt(conn, itt)) in iscsi_itt_to_ctask()
1325 task = iscsi_itt_to_task(conn, itt); in iscsi_itt_to_ctask()
1329 if (task->sc->SCp.phase != conn->session->age) { in iscsi_itt_to_ctask()
1330 iscsi_session_printk(KERN_ERR, conn->session, in iscsi_itt_to_ctask()
1332 task->sc->SCp.phase, conn->session->age); in iscsi_itt_to_ctask()
1343 struct iscsi_conn *conn; in iscsi_session_failure() local
1347 conn = session->leadconn; in iscsi_session_failure()
1348 if (session->state == ISCSI_STATE_TERMINATE || !conn) { in iscsi_session_failure()
1353 dev = get_device(&conn->cls_conn->dev); in iscsi_session_failure()
1363 iscsi_conn_error_event(conn->cls_conn, err); in iscsi_session_failure()
1365 iscsi_conn_failure(conn, err); in iscsi_session_failure()
1370 void iscsi_conn_failure(struct iscsi_conn *conn, enum iscsi_err err) in iscsi_conn_failure() argument
1372 struct iscsi_session *session = conn->session; in iscsi_conn_failure()
1380 if (conn->stop_stage == 0) in iscsi_conn_failure()
1384 set_bit(ISCSI_SUSPEND_BIT, &conn->suspend_tx); in iscsi_conn_failure()
1385 set_bit(ISCSI_SUSPEND_BIT, &conn->suspend_rx); in iscsi_conn_failure()
1386 iscsi_conn_error_event(conn->cls_conn, err); in iscsi_conn_failure()
1390 static int iscsi_check_cmdsn_window_closed(struct iscsi_conn *conn) in iscsi_check_cmdsn_window_closed() argument
1392 struct iscsi_session *session = conn->session; in iscsi_check_cmdsn_window_closed()
1407 static int iscsi_xmit_task(struct iscsi_conn *conn) in iscsi_xmit_task() argument
1409 struct iscsi_task *task = conn->task; in iscsi_xmit_task()
1412 if (test_bit(ISCSI_SUSPEND_BIT, &conn->suspend_tx)) in iscsi_xmit_task()
1415 spin_lock_bh(&conn->session->back_lock); in iscsi_xmit_task()
1416 if (conn->task == NULL) { in iscsi_xmit_task()
1417 spin_unlock_bh(&conn->session->back_lock); in iscsi_xmit_task()
1421 spin_unlock_bh(&conn->session->back_lock); in iscsi_xmit_task()
1422 spin_unlock_bh(&conn->session->frwd_lock); in iscsi_xmit_task()
1423 rc = conn->session->tt->xmit_task(task); in iscsi_xmit_task()
1424 spin_lock_bh(&conn->session->frwd_lock); in iscsi_xmit_task()
1428 conn->task = NULL; in iscsi_xmit_task()
1431 spin_lock(&conn->session->back_lock); in iscsi_xmit_task()
1433 spin_unlock(&conn->session->back_lock); in iscsi_xmit_task()
1447 struct iscsi_conn *conn = task->conn; in iscsi_requeue_task() local
1453 spin_lock_bh(&conn->taskqueuelock); in iscsi_requeue_task()
1455 list_add_tail(&task->running, &conn->requeue); in iscsi_requeue_task()
1456 spin_unlock_bh(&conn->taskqueuelock); in iscsi_requeue_task()
1457 iscsi_conn_queue_work(conn); in iscsi_requeue_task()
1470 static int iscsi_data_xmit(struct iscsi_conn *conn) in iscsi_data_xmit() argument
1475 spin_lock_bh(&conn->session->frwd_lock); in iscsi_data_xmit()
1476 if (test_bit(ISCSI_SUSPEND_BIT, &conn->suspend_tx)) { in iscsi_data_xmit()
1477 ISCSI_DBG_SESSION(conn->session, "Tx suspended!\n"); in iscsi_data_xmit()
1478 spin_unlock_bh(&conn->session->frwd_lock); in iscsi_data_xmit()
1482 if (conn->task) { in iscsi_data_xmit()
1483 rc = iscsi_xmit_task(conn); in iscsi_data_xmit()
1493 spin_lock_bh(&conn->taskqueuelock); in iscsi_data_xmit()
1495 while (!list_empty(&conn->mgmtqueue)) { in iscsi_data_xmit()
1496 conn->task = list_entry(conn->mgmtqueue.next, in iscsi_data_xmit()
1498 list_del_init(&conn->task->running); in iscsi_data_xmit()
1499 spin_unlock_bh(&conn->taskqueuelock); in iscsi_data_xmit()
1500 if (iscsi_prep_mgmt_task(conn, conn->task)) { in iscsi_data_xmit()
1502 spin_lock_bh(&conn->session->back_lock); in iscsi_data_xmit()
1503 __iscsi_put_task(conn->task); in iscsi_data_xmit()
1504 spin_unlock_bh(&conn->session->back_lock); in iscsi_data_xmit()
1505 conn->task = NULL; in iscsi_data_xmit()
1506 spin_lock_bh(&conn->taskqueuelock); in iscsi_data_xmit()
1509 rc = iscsi_xmit_task(conn); in iscsi_data_xmit()
1512 spin_lock_bh(&conn->taskqueuelock); in iscsi_data_xmit()
1516 while (!list_empty(&conn->cmdqueue)) { in iscsi_data_xmit()
1517 conn->task = list_entry(conn->cmdqueue.next, struct iscsi_task, in iscsi_data_xmit()
1519 list_del_init(&conn->task->running); in iscsi_data_xmit()
1520 spin_unlock_bh(&conn->taskqueuelock); in iscsi_data_xmit()
1521 if (conn->session->state == ISCSI_STATE_LOGGING_OUT) { in iscsi_data_xmit()
1522 fail_scsi_task(conn->task, DID_IMM_RETRY); in iscsi_data_xmit()
1523 spin_lock_bh(&conn->taskqueuelock); in iscsi_data_xmit()
1526 rc = iscsi_prep_scsi_cmd_pdu(conn->task); in iscsi_data_xmit()
1529 spin_lock_bh(&conn->taskqueuelock); in iscsi_data_xmit()
1530 list_add_tail(&conn->task->running, in iscsi_data_xmit()
1531 &conn->cmdqueue); in iscsi_data_xmit()
1532 conn->task = NULL; in iscsi_data_xmit()
1533 spin_unlock_bh(&conn->taskqueuelock); in iscsi_data_xmit()
1536 fail_scsi_task(conn->task, DID_ABORT); in iscsi_data_xmit()
1537 spin_lock_bh(&conn->taskqueuelock); in iscsi_data_xmit()
1540 rc = iscsi_xmit_task(conn); in iscsi_data_xmit()
1548 spin_lock_bh(&conn->taskqueuelock); in iscsi_data_xmit()
1549 if (!list_empty(&conn->mgmtqueue)) in iscsi_data_xmit()
1553 while (!list_empty(&conn->requeue)) { in iscsi_data_xmit()
1557 if (conn->session->state == ISCSI_STATE_LOGGING_OUT) in iscsi_data_xmit()
1560 task = list_entry(conn->requeue.next, struct iscsi_task, in iscsi_data_xmit()
1565 conn->task = task; in iscsi_data_xmit()
1566 list_del_init(&conn->task->running); in iscsi_data_xmit()
1567 conn->task->state = ISCSI_TASK_RUNNING; in iscsi_data_xmit()
1568 spin_unlock_bh(&conn->taskqueuelock); in iscsi_data_xmit()
1569 rc = iscsi_xmit_task(conn); in iscsi_data_xmit()
1572 spin_lock_bh(&conn->taskqueuelock); in iscsi_data_xmit()
1573 if (!list_empty(&conn->mgmtqueue)) in iscsi_data_xmit()
1576 spin_unlock_bh(&conn->taskqueuelock); in iscsi_data_xmit()
1577 spin_unlock_bh(&conn->session->frwd_lock); in iscsi_data_xmit()
1581 spin_unlock_bh(&conn->session->frwd_lock); in iscsi_data_xmit()
1587 struct iscsi_conn *conn = in iscsi_xmitworker() local
1594 rc = iscsi_data_xmit(conn); in iscsi_xmitworker()
1598 static inline struct iscsi_task *iscsi_alloc_task(struct iscsi_conn *conn, in iscsi_alloc_task() argument
1603 if (!kfifo_out(&conn->session->cmdpool.queue, in iscsi_alloc_task()
1607 sc->SCp.phase = conn->session->age; in iscsi_alloc_task()
1612 task->conn = conn; in iscsi_alloc_task()
1641 struct iscsi_conn *conn; in iscsi_queuecommand() local
1701 conn = session->leadconn; in iscsi_queuecommand()
1702 if (!conn) { in iscsi_queuecommand()
1708 if (test_bit(ISCSI_SUSPEND_BIT, &conn->suspend_tx)) { in iscsi_queuecommand()
1714 if (iscsi_check_cmdsn_window_closed(conn)) { in iscsi_queuecommand()
1719 task = iscsi_alloc_task(conn, sc); in iscsi_queuecommand()
1742 spin_lock_bh(&conn->taskqueuelock); in iscsi_queuecommand()
1743 list_add_tail(&task->running, &conn->cmdqueue); in iscsi_queuecommand()
1744 spin_unlock_bh(&conn->taskqueuelock); in iscsi_queuecommand()
1745 iscsi_conn_queue_work(conn); in iscsi_queuecommand()
1788 struct iscsi_conn *conn = from_timer(conn, t, tmf_timer); in iscsi_tmf_timedout() local
1789 struct iscsi_session *session = conn->session; in iscsi_tmf_timedout()
1792 if (conn->tmf_state == TMF_QUEUED) { in iscsi_tmf_timedout()
1793 conn->tmf_state = TMF_TIMEDOUT; in iscsi_tmf_timedout()
1796 wake_up(&conn->ehwait); in iscsi_tmf_timedout()
1801 static int iscsi_exec_task_mgmt_fn(struct iscsi_conn *conn, in iscsi_exec_task_mgmt_fn() argument
1806 struct iscsi_session *session = conn->session; in iscsi_exec_task_mgmt_fn()
1809 task = __iscsi_conn_send_pdu(conn, (struct iscsi_hdr *)hdr, in iscsi_exec_task_mgmt_fn()
1813 iscsi_conn_printk(KERN_ERR, conn, "Could not send TMF.\n"); in iscsi_exec_task_mgmt_fn()
1814 iscsi_conn_failure(conn, ISCSI_ERR_CONN_FAILED); in iscsi_exec_task_mgmt_fn()
1818 conn->tmfcmd_pdus_cnt++; in iscsi_exec_task_mgmt_fn()
1819 conn->tmf_timer.expires = timeout * HZ + jiffies; in iscsi_exec_task_mgmt_fn()
1820 add_timer(&conn->tmf_timer); in iscsi_exec_task_mgmt_fn()
1834 wait_event_interruptible(conn->ehwait, age != session->age || in iscsi_exec_task_mgmt_fn()
1836 conn->tmf_state != TMF_QUEUED); in iscsi_exec_task_mgmt_fn()
1839 del_timer_sync(&conn->tmf_timer); in iscsi_exec_task_mgmt_fn()
1854 static void fail_scsi_tasks(struct iscsi_conn *conn, u64 lun, int error) in fail_scsi_tasks() argument
1859 for (i = 0; i < conn->session->cmds_max; i++) { in fail_scsi_tasks()
1860 task = conn->session->cmds[i]; in fail_scsi_tasks()
1867 ISCSI_DBG_SESSION(conn->session, in fail_scsi_tasks()
1885 void iscsi_suspend_queue(struct iscsi_conn *conn) in iscsi_suspend_queue() argument
1887 spin_lock_bh(&conn->session->frwd_lock); in iscsi_suspend_queue()
1888 set_bit(ISCSI_SUSPEND_BIT, &conn->suspend_tx); in iscsi_suspend_queue()
1889 spin_unlock_bh(&conn->session->frwd_lock); in iscsi_suspend_queue()
1901 void iscsi_suspend_tx(struct iscsi_conn *conn) in iscsi_suspend_tx() argument
1903 struct Scsi_Host *shost = conn->session->host; in iscsi_suspend_tx()
1906 set_bit(ISCSI_SUSPEND_BIT, &conn->suspend_tx); in iscsi_suspend_tx()
1912 static void iscsi_start_tx(struct iscsi_conn *conn) in iscsi_start_tx() argument
1914 clear_bit(ISCSI_SUSPEND_BIT, &conn->suspend_tx); in iscsi_start_tx()
1915 iscsi_conn_queue_work(conn); in iscsi_start_tx()
1924 static int iscsi_has_ping_timed_out(struct iscsi_conn *conn) in iscsi_has_ping_timed_out() argument
1926 if (conn->ping_task && in iscsi_has_ping_timed_out()
1927 time_before_eq(conn->last_recv + (conn->recv_timeout * HZ) + in iscsi_has_ping_timed_out()
1928 (conn->ping_timeout * HZ), jiffies)) in iscsi_has_ping_timed_out()
1940 struct iscsi_conn *conn; in iscsi_eh_cmd_timed_out() local
1981 conn = session->leadconn; in iscsi_eh_cmd_timed_out()
1982 if (!conn) { in iscsi_eh_cmd_timed_out()
2005 if (!conn->recv_timeout && !conn->ping_timeout) in iscsi_eh_cmd_timed_out()
2011 if (iscsi_has_ping_timed_out(conn)) { in iscsi_eh_cmd_timed_out()
2016 for (i = 0; i < conn->session->cmds_max; i++) { in iscsi_eh_cmd_timed_out()
2017 running_task = conn->session->cmds[i]; in iscsi_eh_cmd_timed_out()
2061 if (conn->ping_task) { in iscsi_eh_cmd_timed_out()
2068 iscsi_send_nopout(conn, NULL); in iscsi_eh_cmd_timed_out()
2084 struct iscsi_conn *conn = from_timer(conn, t, transport_timer); in iscsi_check_transport_timeouts() local
2085 struct iscsi_session *session = conn->session; in iscsi_check_transport_timeouts()
2092 recv_timeout = conn->recv_timeout; in iscsi_check_transport_timeouts()
2097 last_recv = conn->last_recv; in iscsi_check_transport_timeouts()
2099 if (iscsi_has_ping_timed_out(conn)) { in iscsi_check_transport_timeouts()
2100 iscsi_conn_printk(KERN_ERR, conn, "ping timeout of %d secs " in iscsi_check_transport_timeouts()
2103 conn->ping_timeout, conn->recv_timeout, in iscsi_check_transport_timeouts()
2104 last_recv, conn->last_ping, jiffies); in iscsi_check_transport_timeouts()
2106 iscsi_conn_failure(conn, ISCSI_ERR_NOP_TIMEDOUT); in iscsi_check_transport_timeouts()
2112 ISCSI_DBG_CONN(conn, "Sending nopout as ping\n"); in iscsi_check_transport_timeouts()
2113 if (iscsi_send_nopout(conn, NULL)) in iscsi_check_transport_timeouts()
2116 next_timeout = conn->last_ping + (conn->ping_timeout * HZ); in iscsi_check_transport_timeouts()
2120 ISCSI_DBG_CONN(conn, "Setting next tmo %lu\n", next_timeout); in iscsi_check_transport_timeouts()
2121 mod_timer(&conn->transport_timer, next_timeout); in iscsi_check_transport_timeouts()
2142 struct iscsi_conn *conn; in iscsi_eh_abort() local
2179 conn = session->leadconn; in iscsi_eh_abort()
2180 conn->eh_abort_cnt++; in iscsi_eh_abort()
2199 if (conn->tmf_state != TMF_INITIAL) in iscsi_eh_abort()
2201 conn->tmf_state = TMF_QUEUED; in iscsi_eh_abort()
2203 hdr = &conn->tmhdr; in iscsi_eh_abort()
2206 if (iscsi_exec_task_mgmt_fn(conn, hdr, age, session->abort_timeout)) in iscsi_eh_abort()
2209 switch (conn->tmf_state) { in iscsi_eh_abort()
2216 iscsi_suspend_tx(conn); in iscsi_eh_abort()
2224 conn->tmf_state = TMF_INITIAL; in iscsi_eh_abort()
2227 iscsi_start_tx(conn); in iscsi_eh_abort()
2231 iscsi_conn_failure(conn, ISCSI_ERR_SCSI_EH_SESSION_RST); in iscsi_eh_abort()
2235 conn->tmf_state = TMF_INITIAL; in iscsi_eh_abort()
2244 conn->tmf_state = TMF_INITIAL; in iscsi_eh_abort()
2280 struct iscsi_conn *conn; in iscsi_eh_device_reset() local
2298 conn = session->leadconn; in iscsi_eh_device_reset()
2301 if (conn->tmf_state != TMF_INITIAL) in iscsi_eh_device_reset()
2303 conn->tmf_state = TMF_QUEUED; in iscsi_eh_device_reset()
2305 hdr = &conn->tmhdr; in iscsi_eh_device_reset()
2308 if (iscsi_exec_task_mgmt_fn(conn, hdr, session->age, in iscsi_eh_device_reset()
2314 switch (conn->tmf_state) { in iscsi_eh_device_reset()
2319 iscsi_conn_failure(conn, ISCSI_ERR_SCSI_EH_SESSION_RST); in iscsi_eh_device_reset()
2322 conn->tmf_state = TMF_INITIAL; in iscsi_eh_device_reset()
2329 iscsi_suspend_tx(conn); in iscsi_eh_device_reset()
2333 fail_scsi_tasks(conn, sc->device->lun, DID_ERROR); in iscsi_eh_device_reset()
2334 conn->tmf_state = TMF_INITIAL; in iscsi_eh_device_reset()
2337 iscsi_start_tx(conn); in iscsi_eh_device_reset()
2375 struct iscsi_conn *conn; in iscsi_eh_session_reset() local
2379 conn = session->leadconn; in iscsi_eh_session_reset()
2400 iscsi_conn_failure(conn, ISCSI_ERR_SCSI_EH_SESSION_RST); in iscsi_eh_session_reset()
2403 wait_event_interruptible(conn->ehwait, in iscsi_eh_session_reset()
2415 session->targetname, conn->persistent_address); in iscsi_eh_session_reset()
2443 struct iscsi_conn *conn; in iscsi_eh_target_reset() local
2461 conn = session->leadconn; in iscsi_eh_target_reset()
2464 if (conn->tmf_state != TMF_INITIAL) in iscsi_eh_target_reset()
2466 conn->tmf_state = TMF_QUEUED; in iscsi_eh_target_reset()
2468 hdr = &conn->tmhdr; in iscsi_eh_target_reset()
2471 if (iscsi_exec_task_mgmt_fn(conn, hdr, session->age, in iscsi_eh_target_reset()
2477 switch (conn->tmf_state) { in iscsi_eh_target_reset()
2482 iscsi_conn_failure(conn, ISCSI_ERR_SCSI_EH_SESSION_RST); in iscsi_eh_target_reset()
2485 conn->tmf_state = TMF_INITIAL; in iscsi_eh_target_reset()
2492 iscsi_suspend_tx(conn); in iscsi_eh_target_reset()
2496 fail_scsi_tasks(conn, -1, DID_ERROR); in iscsi_eh_target_reset()
2497 conn->tmf_state = TMF_INITIAL; in iscsi_eh_target_reset()
2500 iscsi_start_tx(conn); in iscsi_eh_target_reset()
2889 struct iscsi_conn *conn; in iscsi_conn_setup() local
2893 cls_conn = iscsi_create_conn(cls_session, sizeof(*conn) + dd_size, in iscsi_conn_setup()
2897 conn = cls_conn->dd_data; in iscsi_conn_setup()
2898 memset(conn, 0, sizeof(*conn) + dd_size); in iscsi_conn_setup()
2900 conn->dd_data = cls_conn->dd_data + sizeof(*conn); in iscsi_conn_setup()
2901 conn->session = session; in iscsi_conn_setup()
2902 conn->cls_conn = cls_conn; in iscsi_conn_setup()
2903 conn->c_stage = ISCSI_CONN_INITIAL_STAGE; in iscsi_conn_setup()
2904 conn->id = conn_idx; in iscsi_conn_setup()
2905 conn->exp_statsn = 0; in iscsi_conn_setup()
2906 conn->tmf_state = TMF_INITIAL; in iscsi_conn_setup()
2908 timer_setup(&conn->transport_timer, iscsi_check_transport_timeouts, 0); in iscsi_conn_setup()
2910 INIT_LIST_HEAD(&conn->mgmtqueue); in iscsi_conn_setup()
2911 INIT_LIST_HEAD(&conn->cmdqueue); in iscsi_conn_setup()
2912 INIT_LIST_HEAD(&conn->requeue); in iscsi_conn_setup()
2913 spin_lock_init(&conn->taskqueuelock); in iscsi_conn_setup()
2914 INIT_WORK(&conn->xmitwork, iscsi_xmitworker); in iscsi_conn_setup()
2919 (void*)&conn->login_task, in iscsi_conn_setup()
2930 conn->login_task->data = conn->data = data; in iscsi_conn_setup()
2932 timer_setup(&conn->tmf_timer, iscsi_tmf_timedout, 0); in iscsi_conn_setup()
2933 init_waitqueue_head(&conn->ehwait); in iscsi_conn_setup()
2938 kfifo_in(&session->cmdpool.queue, (void*)&conn->login_task, in iscsi_conn_setup()
2955 struct iscsi_conn *conn = cls_conn->dd_data; in iscsi_conn_teardown() local
2956 struct iscsi_session *session = conn->session; in iscsi_conn_teardown()
2958 del_timer_sync(&conn->transport_timer); in iscsi_conn_teardown()
2962 conn->c_stage = ISCSI_CONN_CLEANUP_WAIT; in iscsi_conn_teardown()
2963 if (session->leadconn == conn) { in iscsi_conn_teardown()
2968 wake_up(&conn->ehwait); in iscsi_conn_teardown()
2973 iscsi_suspend_tx(conn); in iscsi_conn_teardown()
2976 free_pages((unsigned long) conn->data, in iscsi_conn_teardown()
2978 kfree(conn->persistent_address); in iscsi_conn_teardown()
2979 kfree(conn->local_ipaddr); in iscsi_conn_teardown()
2982 kfifo_in(&session->cmdpool.queue, (void*)&conn->login_task, in iscsi_conn_teardown()
2985 if (session->leadconn == conn) in iscsi_conn_teardown()
2996 struct iscsi_conn *conn = cls_conn->dd_data; in iscsi_conn_start() local
2997 struct iscsi_session *session = conn->session; in iscsi_conn_start()
3000 iscsi_conn_printk(KERN_ERR, conn, in iscsi_conn_start()
3007 iscsi_conn_printk(KERN_INFO, conn, "invalid burst lengths: " in iscsi_conn_start()
3013 if (conn->ping_timeout && !conn->recv_timeout) { in iscsi_conn_start()
3014 iscsi_conn_printk(KERN_ERR, conn, "invalid recv timeout of " in iscsi_conn_start()
3016 conn->recv_timeout = 5; in iscsi_conn_start()
3019 if (conn->recv_timeout && !conn->ping_timeout) { in iscsi_conn_start()
3020 iscsi_conn_printk(KERN_ERR, conn, "invalid ping timeout of " in iscsi_conn_start()
3022 conn->ping_timeout = 5; in iscsi_conn_start()
3026 conn->c_stage = ISCSI_CONN_STARTED; in iscsi_conn_start()
3030 conn->last_recv = jiffies; in iscsi_conn_start()
3031 conn->last_ping = jiffies; in iscsi_conn_start()
3032 if (conn->recv_timeout && conn->ping_timeout) in iscsi_conn_start()
3033 mod_timer(&conn->transport_timer, in iscsi_conn_start()
3034 jiffies + (conn->recv_timeout * HZ)); in iscsi_conn_start()
3036 switch(conn->stop_stage) { in iscsi_conn_start()
3042 conn->stop_stage = 0; in iscsi_conn_start()
3043 conn->tmf_state = TMF_INITIAL; in iscsi_conn_start()
3049 conn->stop_stage = 0; in iscsi_conn_start()
3057 wake_up(&conn->ehwait); in iscsi_conn_start()
3063 fail_mgmt_tasks(struct iscsi_session *session, struct iscsi_conn *conn) in fail_mgmt_tasks() argument
3068 for (i = 0; i < conn->session->cmds_max; i++) { in fail_mgmt_tasks()
3069 task = conn->session->cmds[i]; in fail_mgmt_tasks()
3076 ISCSI_DBG_SESSION(conn->session, in fail_mgmt_tasks()
3089 struct iscsi_conn *conn, int flag) in iscsi_start_session_recovery() argument
3095 if (conn->stop_stage == STOP_CONN_TERM) { in iscsi_start_session_recovery()
3108 else if (conn->stop_stage != STOP_CONN_RECOVER) in iscsi_start_session_recovery()
3111 old_stop_stage = conn->stop_stage; in iscsi_start_session_recovery()
3112 conn->stop_stage = flag; in iscsi_start_session_recovery()
3115 del_timer_sync(&conn->transport_timer); in iscsi_start_session_recovery()
3116 iscsi_suspend_tx(conn); in iscsi_start_session_recovery()
3119 conn->c_stage = ISCSI_CONN_STOPPED; in iscsi_start_session_recovery()
3129 conn->hdrdgst_en = 0; in iscsi_start_session_recovery()
3130 conn->datadgst_en = 0; in iscsi_start_session_recovery()
3142 fail_scsi_tasks(conn, -1, DID_TRANSPORT_DISRUPTED); in iscsi_start_session_recovery()
3143 fail_mgmt_tasks(session, conn); in iscsi_start_session_recovery()
3144 memset(&conn->tmhdr, 0, sizeof(conn->tmhdr)); in iscsi_start_session_recovery()
3151 struct iscsi_conn *conn = cls_conn->dd_data; in iscsi_conn_stop() local
3152 struct iscsi_session *session = conn->session; in iscsi_conn_stop()
3157 iscsi_start_session_recovery(session, conn, flag); in iscsi_conn_stop()
3160 iscsi_conn_printk(KERN_ERR, conn, in iscsi_conn_stop()
3170 struct iscsi_conn *conn = cls_conn->dd_data; in iscsi_conn_bind() local
3174 session->leadconn = conn; in iscsi_conn_bind()
3180 clear_bit(ISCSI_SUSPEND_BIT, &conn->suspend_rx); in iscsi_conn_bind()
3181 clear_bit(ISCSI_SUSPEND_BIT, &conn->suspend_tx); in iscsi_conn_bind()
3208 struct iscsi_conn *conn = cls_conn->dd_data; in iscsi_set_param() local
3209 struct iscsi_session *session = conn->session; in iscsi_set_param()
3226 sscanf(buf, "%d", &conn->ping_timeout); in iscsi_set_param()
3229 sscanf(buf, "%d", &conn->recv_timeout); in iscsi_set_param()
3232 sscanf(buf, "%d", &conn->max_recv_dlength); in iscsi_set_param()
3235 sscanf(buf, "%d", &conn->max_xmit_dlength); in iscsi_set_param()
3238 sscanf(buf, "%d", &conn->hdrdgst_en); in iscsi_set_param()
3241 sscanf(buf, "%d", &conn->datadgst_en); in iscsi_set_param()
3268 sscanf(buf, "%u", &conn->exp_statsn); in iscsi_set_param()
3286 sscanf(buf, "%d", &conn->persistent_port); in iscsi_set_param()
3289 return iscsi_switch_str_param(&conn->persistent_address, buf); in iscsi_set_param()
3310 return iscsi_switch_str_param(&conn->local_ipaddr, buf); in iscsi_set_param()
3500 struct iscsi_conn *conn = cls_conn->dd_data; in iscsi_conn_get_param() local
3505 len = sprintf(buf, "%u\n", conn->ping_timeout); in iscsi_conn_get_param()
3508 len = sprintf(buf, "%u\n", conn->recv_timeout); in iscsi_conn_get_param()
3511 len = sprintf(buf, "%u\n", conn->max_recv_dlength); in iscsi_conn_get_param()
3514 len = sprintf(buf, "%u\n", conn->max_xmit_dlength); in iscsi_conn_get_param()
3517 len = sprintf(buf, "%d\n", conn->hdrdgst_en); in iscsi_conn_get_param()
3520 len = sprintf(buf, "%d\n", conn->datadgst_en); in iscsi_conn_get_param()
3523 len = sprintf(buf, "%d\n", conn->ifmarker_en); in iscsi_conn_get_param()
3526 len = sprintf(buf, "%d\n", conn->ofmarker_en); in iscsi_conn_get_param()
3529 len = sprintf(buf, "%u\n", conn->exp_statsn); in iscsi_conn_get_param()
3532 len = sprintf(buf, "%d\n", conn->persistent_port); in iscsi_conn_get_param()
3535 len = sprintf(buf, "%s\n", conn->persistent_address); in iscsi_conn_get_param()
3538 len = sprintf(buf, "%u\n", conn->statsn); in iscsi_conn_get_param()
3541 len = sprintf(buf, "%u\n", conn->max_segment_size); in iscsi_conn_get_param()
3544 len = sprintf(buf, "%u\n", conn->keepalive_tmo); in iscsi_conn_get_param()
3547 len = sprintf(buf, "%u\n", conn->local_port); in iscsi_conn_get_param()
3550 len = sprintf(buf, "%u\n", conn->tcp_timestamp_stat); in iscsi_conn_get_param()
3553 len = sprintf(buf, "%u\n", conn->tcp_nagle_disable); in iscsi_conn_get_param()
3556 len = sprintf(buf, "%u\n", conn->tcp_wsf_disable); in iscsi_conn_get_param()
3559 len = sprintf(buf, "%u\n", conn->tcp_timer_scale); in iscsi_conn_get_param()
3562 len = sprintf(buf, "%u\n", conn->tcp_timestamp_en); in iscsi_conn_get_param()
3565 len = sprintf(buf, "%u\n", conn->fragment_disable); in iscsi_conn_get_param()
3568 len = sprintf(buf, "%u\n", conn->ipv4_tos); in iscsi_conn_get_param()
3571 len = sprintf(buf, "%u\n", conn->ipv6_traffic_class); in iscsi_conn_get_param()
3574 len = sprintf(buf, "%u\n", conn->ipv6_flow_label); in iscsi_conn_get_param()
3577 len = sprintf(buf, "%u\n", conn->is_fw_assigned_ipv6); in iscsi_conn_get_param()
3580 len = sprintf(buf, "%u\n", conn->tcp_xmit_wsf); in iscsi_conn_get_param()
3583 len = sprintf(buf, "%u\n", conn->tcp_recv_wsf); in iscsi_conn_get_param()
3586 len = sprintf(buf, "%s\n", conn->local_ipaddr); in iscsi_conn_get_param()