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_session *session = task->conn->session; in iscsi_check_tmf_restrictions()
304 struct iscsi_conn *conn = task->conn; in iscsi_prep_scsi_cmd_pdu() local
305 struct iscsi_session *session = conn->session; in iscsi_prep_scsi_cmd_pdu()
316 if (conn->session->tt->alloc_pdu) { in iscsi_prep_scsi_cmd_pdu()
317 rc = conn->session->tt->alloc_pdu(task, ISCSI_OP_SCSI_CMD); in iscsi_prep_scsi_cmd_pdu()
329 task->conn->session->age); in iscsi_prep_scsi_cmd_pdu()
338 hdr->exp_statsn = cpu_to_be32(conn->exp_statsn); in iscsi_prep_scsi_cmd_pdu()
379 conn->max_xmit_dlength); in iscsi_prep_scsi_cmd_pdu()
382 conn->max_xmit_dlength); in iscsi_prep_scsi_cmd_pdu()
393 r2t->exp_statsn = cpu_to_be32(conn->exp_statsn); in iscsi_prep_scsi_cmd_pdu()
423 conn->scsicmd_pdus_cnt++; in iscsi_prep_scsi_cmd_pdu()
427 "write" : "read", conn->id, sc, sc->cmnd[0], in iscsi_prep_scsi_cmd_pdu()
444 struct iscsi_conn *conn = task->conn; in iscsi_free_task() local
445 struct iscsi_session *session = conn->session; in iscsi_free_task()
458 if (conn->login_task == task) in iscsi_free_task()
490 struct iscsi_session *session = task->conn->session; in iscsi_put_task()
508 struct iscsi_conn *conn = task->conn; in iscsi_complete_task() local
510 ISCSI_DBG_SESSION(conn->session, in iscsi_complete_task()
521 if (READ_ONCE(conn->ping_task) == task) in iscsi_complete_task()
522 WRITE_ONCE(conn->ping_task, NULL); in iscsi_complete_task()
542 struct iscsi_conn *conn = task->conn; in iscsi_complete_scsi_task() local
544 ISCSI_DBG_SESSION(conn->session, "[itt 0x%x]\n", task->itt); in iscsi_complete_scsi_task()
546 conn->last_recv = jiffies; in iscsi_complete_scsi_task()
547 __iscsi_update_cmdsn(conn->session, exp_cmdsn, max_cmdsn); in iscsi_complete_scsi_task()
557 struct iscsi_conn *conn = task->conn; in cleanup_queued_task() local
576 if (conn->task == task) { in cleanup_queued_task()
577 conn->task = NULL; in cleanup_queued_task()
590 struct iscsi_conn *conn = task->conn; in fail_scsi_task() local
594 spin_lock_bh(&conn->session->back_lock); in fail_scsi_task()
596 spin_unlock_bh(&conn->session->back_lock); in fail_scsi_task()
605 conn->session->queued_cmdsn--; in fail_scsi_task()
617 spin_unlock_bh(&conn->session->back_lock); in fail_scsi_task()
620 static int iscsi_prep_mgmt_task(struct iscsi_conn *conn, in iscsi_prep_mgmt_task() argument
623 struct iscsi_session *session = conn->session; in iscsi_prep_mgmt_task()
628 if (conn->session->state == ISCSI_STATE_LOGGING_OUT) in iscsi_prep_mgmt_task()
632 nop->exp_statsn = cpu_to_be32(conn->exp_statsn); in iscsi_prep_mgmt_task()
646 if (conn->c_stage == ISCSI_CONN_STARTED && in iscsi_prep_mgmt_task()
667 __iscsi_conn_send_pdu(struct iscsi_conn *conn, struct iscsi_hdr *hdr, in __iscsi_conn_send_pdu() argument
670 struct iscsi_session *session = conn->session; in __iscsi_conn_send_pdu()
686 if (conn->login_task->state != ISCSI_TASK_FREE) { in __iscsi_conn_send_pdu()
687 iscsi_conn_printk(KERN_ERR, conn, "Login/Text in " in __iscsi_conn_send_pdu()
693 …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()
697 task = conn->login_task; in __iscsi_conn_send_pdu()
703 …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()
707 BUG_ON(conn->c_stage == ISCSI_CONN_INITIAL_STAGE); in __iscsi_conn_send_pdu()
708 BUG_ON(conn->c_stage == ISCSI_CONN_STOPPED); in __iscsi_conn_send_pdu()
720 task->conn = conn; in __iscsi_conn_send_pdu()
731 if (conn->session->tt->alloc_pdu) { in __iscsi_conn_send_pdu()
732 if (conn->session->tt->alloc_pdu(task, hdr->opcode)) { in __iscsi_conn_send_pdu()
733 iscsi_conn_printk(KERN_ERR, conn, "Could not allocate " in __iscsi_conn_send_pdu()
748 task->conn->session->age); in __iscsi_conn_send_pdu()
751 if (unlikely(READ_ONCE(conn->ping_task) == INVALID_SCSI_TASK)) in __iscsi_conn_send_pdu()
752 WRITE_ONCE(conn->ping_task, task); in __iscsi_conn_send_pdu()
755 if (iscsi_prep_mgmt_task(conn, task)) in __iscsi_conn_send_pdu()
761 list_add_tail(&task->running, &conn->mgmtqueue); in __iscsi_conn_send_pdu()
762 iscsi_conn_queue_work(conn); in __iscsi_conn_send_pdu()
778 struct iscsi_conn *conn = cls_conn->dd_data; in iscsi_conn_send_pdu() local
779 struct iscsi_session *session = conn->session; in iscsi_conn_send_pdu()
783 if (!__iscsi_conn_send_pdu(conn, hdr, data, data_size)) in iscsi_conn_send_pdu()
801 static void iscsi_scsi_cmd_rsp(struct iscsi_conn *conn, struct iscsi_hdr *hdr, in iscsi_scsi_cmd_rsp() argument
806 struct iscsi_session *session = conn->session; in iscsi_scsi_cmd_rsp()
810 conn->exp_statsn = be32_to_cpu(rhdr->statsn) + 1; in iscsi_scsi_cmd_rsp()
848 iscsi_conn_printk(KERN_ERR, conn, in iscsi_scsi_cmd_rsp()
886 conn->scsirsp_pdus_cnt++; in iscsi_scsi_cmd_rsp()
900 iscsi_data_in_rsp(struct iscsi_conn *conn, struct iscsi_hdr *hdr, in iscsi_data_in_rsp() argument
909 iscsi_update_cmdsn(conn->session, (struct iscsi_nopin *)hdr); in iscsi_data_in_rsp()
911 conn->exp_statsn = be32_to_cpu(rhdr->statsn) + 1; in iscsi_data_in_rsp()
924 ISCSI_DBG_SESSION(conn->session, "data in with status done " in iscsi_data_in_rsp()
927 conn->scsirsp_pdus_cnt++; in iscsi_data_in_rsp()
931 static void iscsi_tmf_rsp(struct iscsi_conn *conn, struct iscsi_hdr *hdr) in iscsi_tmf_rsp() argument
934 struct iscsi_session *session = conn->session; in iscsi_tmf_rsp()
936 conn->exp_statsn = be32_to_cpu(hdr->statsn) + 1; in iscsi_tmf_rsp()
937 conn->tmfrsp_pdus_cnt++; in iscsi_tmf_rsp()
951 static int iscsi_send_nopout(struct iscsi_conn *conn, struct iscsi_nopin *rhdr) in iscsi_send_nopout() argument
957 if (READ_ONCE(conn->ping_task)) in iscsi_send_nopout()
959 WRITE_ONCE(conn->ping_task, INVALID_SCSI_TASK); in iscsi_send_nopout()
973 task = __iscsi_conn_send_pdu(conn, (struct iscsi_hdr *)&hdr, NULL, 0); in iscsi_send_nopout()
976 WRITE_ONCE(conn->ping_task, NULL); in iscsi_send_nopout()
977 iscsi_conn_printk(KERN_ERR, conn, "Could not send nopout\n"); in iscsi_send_nopout()
981 conn->last_ping = jiffies; in iscsi_send_nopout()
1000 struct iscsi_conn *conn = task->conn; in iscsi_nop_out_rsp() local
1003 if (READ_ONCE(conn->ping_task) != task) { in iscsi_nop_out_rsp()
1008 if (iscsi_recv_pdu(conn->cls_conn, (struct iscsi_hdr *)nop, in iscsi_nop_out_rsp()
1012 mod_timer(&conn->transport_timer, jiffies + conn->recv_timeout); in iscsi_nop_out_rsp()
1017 static int iscsi_handle_reject(struct iscsi_conn *conn, struct iscsi_hdr *hdr, in iscsi_handle_reject() argument
1024 conn->exp_statsn = be32_to_cpu(reject->statsn) + 1; in iscsi_handle_reject()
1028 iscsi_conn_printk(KERN_ERR, conn, "Cannot handle rejected " in iscsi_handle_reject()
1039 iscsi_conn_printk(KERN_ERR, conn, in iscsi_handle_reject()
1045 iscsi_conn_printk(KERN_ERR, conn, in iscsi_handle_reject()
1066 spin_unlock(&conn->session->back_lock); in iscsi_handle_reject()
1067 spin_lock(&conn->session->frwd_lock); in iscsi_handle_reject()
1068 iscsi_send_nopout(conn, in iscsi_handle_reject()
1070 spin_unlock(&conn->session->frwd_lock); in iscsi_handle_reject()
1071 spin_lock(&conn->session->back_lock); in iscsi_handle_reject()
1078 task = iscsi_itt_to_task(conn, rejected_pdu.itt); in iscsi_handle_reject()
1080 iscsi_conn_printk(KERN_ERR, conn, in iscsi_handle_reject()
1091 iscsi_conn_printk(KERN_ERR, conn, in iscsi_handle_reject()
1110 struct iscsi_task *iscsi_itt_to_task(struct iscsi_conn *conn, itt_t itt) in iscsi_itt_to_task() argument
1112 struct iscsi_session *session = conn->session; in iscsi_itt_to_task()
1119 session->tt->parse_pdu_itt(conn, itt, &i, NULL); in iscsi_itt_to_task()
1140 int __iscsi_complete_pdu(struct iscsi_conn *conn, struct iscsi_hdr *hdr, in __iscsi_complete_pdu() argument
1143 struct iscsi_session *session = conn->session; in __iscsi_complete_pdu()
1148 conn->last_recv = jiffies; in __iscsi_complete_pdu()
1149 rc = iscsi_verify_itt(conn, hdr->itt); in __iscsi_complete_pdu()
1159 opcode, conn->id, itt, datalen); in __iscsi_complete_pdu()
1177 iscsi_send_nopout(conn, (struct iscsi_nopin*)hdr); in __iscsi_complete_pdu()
1182 rc = iscsi_handle_reject(conn, hdr, data, datalen); in __iscsi_complete_pdu()
1185 conn->exp_statsn = be32_to_cpu(hdr->statsn) + 1; in __iscsi_complete_pdu()
1186 if (iscsi_recv_pdu(conn->cls_conn, hdr, data, datalen)) in __iscsi_complete_pdu()
1199 task = iscsi_itt_to_ctask(conn, hdr->itt); in __iscsi_complete_pdu()
1214 task = iscsi_itt_to_task(conn, hdr->itt); in __iscsi_complete_pdu()
1224 iscsi_scsi_cmd_rsp(conn, hdr, task, data, datalen); in __iscsi_complete_pdu()
1227 iscsi_data_in_rsp(conn, hdr, task); in __iscsi_complete_pdu()
1235 conn->exp_statsn = be32_to_cpu(hdr->statsn) + 1; in __iscsi_complete_pdu()
1252 iscsi_tmf_rsp(conn, hdr); in __iscsi_complete_pdu()
1261 conn->exp_statsn = be32_to_cpu(hdr->statsn) + 1; in __iscsi_complete_pdu()
1274 if (iscsi_recv_pdu(conn->cls_conn, hdr, data, datalen)) in __iscsi_complete_pdu()
1281 int iscsi_complete_pdu(struct iscsi_conn *conn, struct iscsi_hdr *hdr, in iscsi_complete_pdu() argument
1286 spin_lock(&conn->session->back_lock); in iscsi_complete_pdu()
1287 rc = __iscsi_complete_pdu(conn, hdr, data, datalen); in iscsi_complete_pdu()
1288 spin_unlock(&conn->session->back_lock); in iscsi_complete_pdu()
1293 int iscsi_verify_itt(struct iscsi_conn *conn, itt_t itt) in iscsi_verify_itt() argument
1295 struct iscsi_session *session = conn->session; in iscsi_verify_itt()
1302 session->tt->parse_pdu_itt(conn, itt, &i, &age); in iscsi_verify_itt()
1309 iscsi_conn_printk(KERN_ERR, conn, in iscsi_verify_itt()
1316 iscsi_conn_printk(KERN_ERR, conn, in iscsi_verify_itt()
1334 struct iscsi_task *iscsi_itt_to_ctask(struct iscsi_conn *conn, itt_t itt) in iscsi_itt_to_ctask() argument
1338 if (iscsi_verify_itt(conn, itt)) in iscsi_itt_to_ctask()
1341 task = iscsi_itt_to_task(conn, itt); in iscsi_itt_to_ctask()
1345 if (task->sc->SCp.phase != conn->session->age) { in iscsi_itt_to_ctask()
1346 iscsi_session_printk(KERN_ERR, conn->session, in iscsi_itt_to_ctask()
1348 task->sc->SCp.phase, conn->session->age); in iscsi_itt_to_ctask()
1359 struct iscsi_conn *conn; in iscsi_session_failure() local
1362 conn = session->leadconn; in iscsi_session_failure()
1363 if (session->state == ISCSI_STATE_TERMINATE || !conn) { in iscsi_session_failure()
1368 iscsi_get_conn(conn->cls_conn); in iscsi_session_failure()
1376 iscsi_conn_error_event(conn->cls_conn, err); in iscsi_session_failure()
1378 iscsi_conn_failure(conn, err); in iscsi_session_failure()
1379 iscsi_put_conn(conn->cls_conn); in iscsi_session_failure()
1383 void iscsi_conn_failure(struct iscsi_conn *conn, enum iscsi_err err) in iscsi_conn_failure() argument
1385 struct iscsi_session *session = conn->session; in iscsi_conn_failure()
1393 if (conn->stop_stage == 0) in iscsi_conn_failure()
1397 set_bit(ISCSI_SUSPEND_BIT, &conn->suspend_tx); in iscsi_conn_failure()
1398 set_bit(ISCSI_SUSPEND_BIT, &conn->suspend_rx); in iscsi_conn_failure()
1399 iscsi_conn_error_event(conn->cls_conn, err); in iscsi_conn_failure()
1403 static int iscsi_check_cmdsn_window_closed(struct iscsi_conn *conn) in iscsi_check_cmdsn_window_closed() argument
1405 struct iscsi_session *session = conn->session; in iscsi_check_cmdsn_window_closed()
1420 static int iscsi_xmit_task(struct iscsi_conn *conn, struct iscsi_task *task, in iscsi_xmit_task() argument
1425 spin_lock_bh(&conn->session->back_lock); in iscsi_xmit_task()
1427 if (!conn->task) { in iscsi_xmit_task()
1432 conn->task = NULL; in iscsi_xmit_task()
1446 if (test_bit(ISCSI_SUSPEND_BIT, &conn->suspend_tx)) { in iscsi_xmit_task()
1451 conn->task = task; in iscsi_xmit_task()
1452 spin_unlock_bh(&conn->session->back_lock); in iscsi_xmit_task()
1455 spin_unlock_bh(&conn->session->back_lock); in iscsi_xmit_task()
1457 spin_unlock_bh(&conn->session->frwd_lock); in iscsi_xmit_task()
1458 rc = conn->session->tt->xmit_task(task); in iscsi_xmit_task()
1459 spin_lock_bh(&conn->session->frwd_lock); in iscsi_xmit_task()
1465 spin_lock(&conn->session->back_lock); in iscsi_xmit_task()
1472 conn->task = task; in iscsi_xmit_task()
1476 spin_unlock(&conn->session->back_lock); in iscsi_xmit_task()
1488 struct iscsi_conn *conn = task->conn; in iscsi_requeue_task() local
1494 spin_lock_bh(&conn->session->frwd_lock); in iscsi_requeue_task()
1496 list_add_tail(&task->running, &conn->requeue); in iscsi_requeue_task()
1504 iscsi_conn_queue_work(conn); in iscsi_requeue_task()
1505 spin_unlock_bh(&conn->session->frwd_lock); in iscsi_requeue_task()
1518 static int iscsi_data_xmit(struct iscsi_conn *conn) in iscsi_data_xmit() argument
1523 spin_lock_bh(&conn->session->frwd_lock); in iscsi_data_xmit()
1524 if (test_bit(ISCSI_SUSPEND_BIT, &conn->suspend_tx)) { in iscsi_data_xmit()
1525 ISCSI_DBG_SESSION(conn->session, "Tx suspended!\n"); in iscsi_data_xmit()
1526 spin_unlock_bh(&conn->session->frwd_lock); in iscsi_data_xmit()
1530 if (conn->task) { in iscsi_data_xmit()
1531 rc = iscsi_xmit_task(conn, conn->task, false); in iscsi_data_xmit()
1542 while (!list_empty(&conn->mgmtqueue)) { in iscsi_data_xmit()
1543 task = list_entry(conn->mgmtqueue.next, struct iscsi_task, in iscsi_data_xmit()
1546 if (iscsi_prep_mgmt_task(conn, task)) { in iscsi_data_xmit()
1548 spin_lock_bh(&conn->session->back_lock); in iscsi_data_xmit()
1550 spin_unlock_bh(&conn->session->back_lock); in iscsi_data_xmit()
1553 rc = iscsi_xmit_task(conn, task, false); in iscsi_data_xmit()
1559 while (!list_empty(&conn->cmdqueue)) { in iscsi_data_xmit()
1560 task = list_entry(conn->cmdqueue.next, struct iscsi_task, in iscsi_data_xmit()
1563 if (conn->session->state == ISCSI_STATE_LOGGING_OUT) { in iscsi_data_xmit()
1575 rc = iscsi_xmit_task(conn, task, false); in iscsi_data_xmit()
1583 if (!list_empty(&conn->mgmtqueue)) in iscsi_data_xmit()
1587 while (!list_empty(&conn->requeue)) { in iscsi_data_xmit()
1591 if (conn->session->state == ISCSI_STATE_LOGGING_OUT) in iscsi_data_xmit()
1594 task = list_entry(conn->requeue.next, struct iscsi_task, in iscsi_data_xmit()
1601 rc = iscsi_xmit_task(conn, task, true); in iscsi_data_xmit()
1604 if (!list_empty(&conn->mgmtqueue)) in iscsi_data_xmit()
1607 spin_unlock_bh(&conn->session->frwd_lock); in iscsi_data_xmit()
1611 spin_unlock_bh(&conn->session->frwd_lock); in iscsi_data_xmit()
1617 struct iscsi_conn *conn = in iscsi_xmitworker() local
1624 rc = iscsi_data_xmit(conn); in iscsi_xmitworker()
1628 static inline struct iscsi_task *iscsi_alloc_task(struct iscsi_conn *conn, in iscsi_alloc_task() argument
1633 if (!kfifo_out(&conn->session->cmdpool.queue, in iscsi_alloc_task()
1637 sc->SCp.phase = conn->session->age; in iscsi_alloc_task()
1642 task->conn = conn; in iscsi_alloc_task()
1671 struct iscsi_conn *conn; in iscsi_queuecommand() local
1731 conn = session->leadconn; in iscsi_queuecommand()
1732 if (!conn) { in iscsi_queuecommand()
1738 if (test_bit(ISCSI_SUSPEND_BIT, &conn->suspend_tx)) { in iscsi_queuecommand()
1744 if (iscsi_check_cmdsn_window_closed(conn)) { in iscsi_queuecommand()
1749 task = iscsi_alloc_task(conn, sc); in iscsi_queuecommand()
1772 list_add_tail(&task->running, &conn->cmdqueue); in iscsi_queuecommand()
1773 iscsi_conn_queue_work(conn); in iscsi_queuecommand()
1828 static int iscsi_exec_task_mgmt_fn(struct iscsi_conn *conn, in iscsi_exec_task_mgmt_fn() argument
1833 struct iscsi_session *session = conn->session; in iscsi_exec_task_mgmt_fn()
1836 task = __iscsi_conn_send_pdu(conn, (struct iscsi_hdr *)hdr, in iscsi_exec_task_mgmt_fn()
1840 iscsi_conn_printk(KERN_ERR, conn, "Could not send TMF.\n"); in iscsi_exec_task_mgmt_fn()
1841 iscsi_conn_failure(conn, ISCSI_ERR_CONN_FAILED); in iscsi_exec_task_mgmt_fn()
1845 conn->tmfcmd_pdus_cnt++; in iscsi_exec_task_mgmt_fn()
1880 static void fail_scsi_tasks(struct iscsi_conn *conn, u64 lun, int error) in fail_scsi_tasks() argument
1882 struct iscsi_session *session = conn->session; in fail_scsi_tasks()
1924 void iscsi_suspend_queue(struct iscsi_conn *conn) in iscsi_suspend_queue() argument
1926 spin_lock_bh(&conn->session->frwd_lock); in iscsi_suspend_queue()
1927 set_bit(ISCSI_SUSPEND_BIT, &conn->suspend_tx); in iscsi_suspend_queue()
1928 spin_unlock_bh(&conn->session->frwd_lock); in iscsi_suspend_queue()
1940 void iscsi_suspend_tx(struct iscsi_conn *conn) in iscsi_suspend_tx() argument
1942 struct Scsi_Host *shost = conn->session->host; in iscsi_suspend_tx()
1945 set_bit(ISCSI_SUSPEND_BIT, &conn->suspend_tx); in iscsi_suspend_tx()
1951 static void iscsi_start_tx(struct iscsi_conn *conn) in iscsi_start_tx() argument
1953 clear_bit(ISCSI_SUSPEND_BIT, &conn->suspend_tx); in iscsi_start_tx()
1954 iscsi_conn_queue_work(conn); in iscsi_start_tx()
1963 static int iscsi_has_ping_timed_out(struct iscsi_conn *conn) in iscsi_has_ping_timed_out() argument
1965 if (READ_ONCE(conn->ping_task) && in iscsi_has_ping_timed_out()
1966 time_before_eq(conn->last_recv + (conn->recv_timeout * HZ) + in iscsi_has_ping_timed_out()
1967 (conn->ping_timeout * HZ), jiffies)) in iscsi_has_ping_timed_out()
1979 struct iscsi_conn *conn; in iscsi_eh_cmd_timed_out() local
2024 conn = session->leadconn; in iscsi_eh_cmd_timed_out()
2025 if (!conn) { in iscsi_eh_cmd_timed_out()
2048 if (!conn->recv_timeout && !conn->ping_timeout) in iscsi_eh_cmd_timed_out()
2054 if (iscsi_has_ping_timed_out(conn)) { in iscsi_eh_cmd_timed_out()
2060 for (i = 0; i < conn->session->cmds_max; i++) { in iscsi_eh_cmd_timed_out()
2061 running_task = conn->session->cmds[i]; in iscsi_eh_cmd_timed_out()
2107 if (READ_ONCE(conn->ping_task)) { in iscsi_eh_cmd_timed_out()
2114 iscsi_send_nopout(conn, NULL); in iscsi_eh_cmd_timed_out()
2133 struct iscsi_conn *conn = from_timer(conn, t, transport_timer); in iscsi_check_transport_timeouts() local
2134 struct iscsi_session *session = conn->session; in iscsi_check_transport_timeouts()
2141 recv_timeout = conn->recv_timeout; in iscsi_check_transport_timeouts()
2146 last_recv = conn->last_recv; in iscsi_check_transport_timeouts()
2148 if (iscsi_has_ping_timed_out(conn)) { in iscsi_check_transport_timeouts()
2149 iscsi_conn_printk(KERN_ERR, conn, "ping timeout of %d secs " in iscsi_check_transport_timeouts()
2152 conn->ping_timeout, conn->recv_timeout, in iscsi_check_transport_timeouts()
2153 last_recv, conn->last_ping, jiffies); in iscsi_check_transport_timeouts()
2155 iscsi_conn_failure(conn, ISCSI_ERR_NOP_TIMEDOUT); in iscsi_check_transport_timeouts()
2161 ISCSI_DBG_CONN(conn, "Sending nopout as ping\n"); in iscsi_check_transport_timeouts()
2162 if (iscsi_send_nopout(conn, NULL)) in iscsi_check_transport_timeouts()
2165 next_timeout = conn->last_ping + (conn->ping_timeout * HZ); in iscsi_check_transport_timeouts()
2169 ISCSI_DBG_CONN(conn, "Setting next tmo %lu\n", next_timeout); in iscsi_check_transport_timeouts()
2170 mod_timer(&conn->transport_timer, next_timeout); in iscsi_check_transport_timeouts()
2191 struct iscsi_conn *conn; in iscsi_eh_abort() local
2228 conn = session->leadconn; in iscsi_eh_abort()
2229 conn->eh_abort_cnt++; in iscsi_eh_abort()
2260 if (iscsi_exec_task_mgmt_fn(conn, hdr, age, session->abort_timeout)) in iscsi_eh_abort()
2270 iscsi_suspend_tx(conn); in iscsi_eh_abort()
2281 iscsi_start_tx(conn); in iscsi_eh_abort()
2285 iscsi_conn_failure(conn, ISCSI_ERR_SCSI_EH_SESSION_RST); in iscsi_eh_abort()
2336 struct iscsi_conn *conn; in iscsi_eh_device_reset() local
2354 conn = session->leadconn; in iscsi_eh_device_reset()
2364 if (iscsi_exec_task_mgmt_fn(conn, hdr, session->age, in iscsi_eh_device_reset()
2375 iscsi_conn_failure(conn, ISCSI_ERR_SCSI_EH_SESSION_RST); in iscsi_eh_device_reset()
2385 iscsi_suspend_tx(conn); in iscsi_eh_device_reset()
2389 fail_scsi_tasks(conn, sc->device->lun, DID_ERROR); in iscsi_eh_device_reset()
2393 iscsi_start_tx(conn); in iscsi_eh_device_reset()
2430 struct iscsi_conn *conn; in iscsi_eh_session_reset() local
2434 conn = session->leadconn; in iscsi_eh_session_reset()
2455 iscsi_conn_failure(conn, ISCSI_ERR_SCSI_EH_SESSION_RST); in iscsi_eh_session_reset()
2470 session->targetname, conn->persistent_address); in iscsi_eh_session_reset()
2498 struct iscsi_conn *conn; in iscsi_eh_target_reset() local
2516 conn = session->leadconn; in iscsi_eh_target_reset()
2526 if (iscsi_exec_task_mgmt_fn(conn, hdr, session->age, in iscsi_eh_target_reset()
2537 iscsi_conn_failure(conn, ISCSI_ERR_SCSI_EH_SESSION_RST); in iscsi_eh_target_reset()
2547 iscsi_suspend_tx(conn); in iscsi_eh_target_reset()
2551 fail_scsi_tasks(conn, -1, DID_ERROR); in iscsi_eh_target_reset()
2555 iscsi_start_tx(conn); in iscsi_eh_target_reset()
2972 struct iscsi_conn *conn; in iscsi_conn_setup() local
2976 cls_conn = iscsi_create_conn(cls_session, sizeof(*conn) + dd_size, in iscsi_conn_setup()
2980 conn = cls_conn->dd_data; in iscsi_conn_setup()
2981 memset(conn, 0, sizeof(*conn) + dd_size); in iscsi_conn_setup()
2983 conn->dd_data = cls_conn->dd_data + sizeof(*conn); in iscsi_conn_setup()
2984 conn->session = session; in iscsi_conn_setup()
2985 conn->cls_conn = cls_conn; in iscsi_conn_setup()
2986 conn->c_stage = ISCSI_CONN_INITIAL_STAGE; in iscsi_conn_setup()
2987 conn->id = conn_idx; in iscsi_conn_setup()
2988 conn->exp_statsn = 0; in iscsi_conn_setup()
2990 timer_setup(&conn->transport_timer, iscsi_check_transport_timeouts, 0); in iscsi_conn_setup()
2992 INIT_LIST_HEAD(&conn->mgmtqueue); in iscsi_conn_setup()
2993 INIT_LIST_HEAD(&conn->cmdqueue); in iscsi_conn_setup()
2994 INIT_LIST_HEAD(&conn->requeue); in iscsi_conn_setup()
2995 INIT_WORK(&conn->xmitwork, iscsi_xmitworker); in iscsi_conn_setup()
3000 (void*)&conn->login_task, in iscsi_conn_setup()
3011 conn->login_task->data = conn->data = data; in iscsi_conn_setup()
3018 kfifo_in(&session->cmdpool.queue, (void*)&conn->login_task, in iscsi_conn_setup()
3035 struct iscsi_conn *conn = cls_conn->dd_data; in iscsi_conn_teardown() local
3036 struct iscsi_session *session = conn->session; in iscsi_conn_teardown()
3037 char *tmp_persistent_address = conn->persistent_address; in iscsi_conn_teardown()
3038 char *tmp_local_ipaddr = conn->local_ipaddr; in iscsi_conn_teardown()
3040 del_timer_sync(&conn->transport_timer); in iscsi_conn_teardown()
3044 conn->c_stage = ISCSI_CONN_CLEANUP_WAIT; in iscsi_conn_teardown()
3045 if (session->leadconn == conn) { in iscsi_conn_teardown()
3055 iscsi_suspend_tx(conn); in iscsi_conn_teardown()
3058 free_pages((unsigned long) conn->data, in iscsi_conn_teardown()
3062 kfifo_in(&session->cmdpool.queue, (void*)&conn->login_task, in iscsi_conn_teardown()
3065 if (session->leadconn == conn) in iscsi_conn_teardown()
3078 struct iscsi_conn *conn = cls_conn->dd_data; in iscsi_conn_start() local
3079 struct iscsi_session *session = conn->session; in iscsi_conn_start()
3082 iscsi_conn_printk(KERN_ERR, conn, in iscsi_conn_start()
3089 iscsi_conn_printk(KERN_INFO, conn, "invalid burst lengths: " in iscsi_conn_start()
3095 if (conn->ping_timeout && !conn->recv_timeout) { in iscsi_conn_start()
3096 iscsi_conn_printk(KERN_ERR, conn, "invalid recv timeout of " in iscsi_conn_start()
3098 conn->recv_timeout = 5; in iscsi_conn_start()
3101 if (conn->recv_timeout && !conn->ping_timeout) { in iscsi_conn_start()
3102 iscsi_conn_printk(KERN_ERR, conn, "invalid ping timeout of " in iscsi_conn_start()
3104 conn->ping_timeout = 5; in iscsi_conn_start()
3108 conn->c_stage = ISCSI_CONN_STARTED; in iscsi_conn_start()
3112 conn->last_recv = jiffies; in iscsi_conn_start()
3113 conn->last_ping = jiffies; in iscsi_conn_start()
3114 if (conn->recv_timeout && conn->ping_timeout) in iscsi_conn_start()
3115 mod_timer(&conn->transport_timer, in iscsi_conn_start()
3116 jiffies + (conn->recv_timeout * HZ)); in iscsi_conn_start()
3118 switch(conn->stop_stage) { in iscsi_conn_start()
3124 conn->stop_stage = 0; in iscsi_conn_start()
3131 conn->stop_stage = 0; in iscsi_conn_start()
3145 fail_mgmt_tasks(struct iscsi_session *session, struct iscsi_conn *conn) in fail_mgmt_tasks() argument
3150 for (i = 0; i < conn->session->cmds_max; i++) { in fail_mgmt_tasks()
3151 task = conn->session->cmds[i]; in fail_mgmt_tasks()
3158 ISCSI_DBG_SESSION(conn->session, in fail_mgmt_tasks()
3178 struct iscsi_conn *conn = cls_conn->dd_data; in iscsi_conn_stop() local
3179 struct iscsi_session *session = conn->session; in iscsi_conn_stop()
3184 if (conn->stop_stage == STOP_CONN_TERM) { in iscsi_conn_stop()
3197 else if (conn->stop_stage != STOP_CONN_RECOVER) in iscsi_conn_stop()
3200 old_stop_stage = conn->stop_stage; in iscsi_conn_stop()
3201 conn->stop_stage = flag; in iscsi_conn_stop()
3204 del_timer_sync(&conn->transport_timer); in iscsi_conn_stop()
3205 iscsi_suspend_tx(conn); in iscsi_conn_stop()
3208 conn->c_stage = ISCSI_CONN_STOPPED; in iscsi_conn_stop()
3218 conn->hdrdgst_en = 0; in iscsi_conn_stop()
3219 conn->datadgst_en = 0; in iscsi_conn_stop()
3231 fail_scsi_tasks(conn, -1, DID_TRANSPORT_DISRUPTED); in iscsi_conn_stop()
3232 fail_mgmt_tasks(session, conn); in iscsi_conn_stop()
3243 struct iscsi_conn *conn = cls_conn->dd_data; in iscsi_conn_bind() local
3247 session->leadconn = conn; in iscsi_conn_bind()
3260 clear_bit(ISCSI_SUSPEND_BIT, &conn->suspend_rx); in iscsi_conn_bind()
3261 clear_bit(ISCSI_SUSPEND_BIT, &conn->suspend_tx); in iscsi_conn_bind()
3288 struct iscsi_conn *conn = cls_conn->dd_data; in iscsi_set_param() local
3289 struct iscsi_session *session = conn->session; in iscsi_set_param()
3306 sscanf(buf, "%d", &conn->ping_timeout); in iscsi_set_param()
3309 sscanf(buf, "%d", &conn->recv_timeout); in iscsi_set_param()
3312 sscanf(buf, "%d", &conn->max_recv_dlength); in iscsi_set_param()
3315 sscanf(buf, "%d", &conn->max_xmit_dlength); in iscsi_set_param()
3318 sscanf(buf, "%d", &conn->hdrdgst_en); in iscsi_set_param()
3321 sscanf(buf, "%d", &conn->datadgst_en); in iscsi_set_param()
3348 sscanf(buf, "%u", &conn->exp_statsn); in iscsi_set_param()
3366 sscanf(buf, "%d", &conn->persistent_port); in iscsi_set_param()
3369 return iscsi_switch_str_param(&conn->persistent_address, buf); in iscsi_set_param()
3390 return iscsi_switch_str_param(&conn->local_ipaddr, buf); in iscsi_set_param()
3580 struct iscsi_conn *conn = cls_conn->dd_data; in iscsi_conn_get_param() local
3585 len = sysfs_emit(buf, "%u\n", conn->ping_timeout); in iscsi_conn_get_param()
3588 len = sysfs_emit(buf, "%u\n", conn->recv_timeout); in iscsi_conn_get_param()
3591 len = sysfs_emit(buf, "%u\n", conn->max_recv_dlength); in iscsi_conn_get_param()
3594 len = sysfs_emit(buf, "%u\n", conn->max_xmit_dlength); in iscsi_conn_get_param()
3597 len = sysfs_emit(buf, "%d\n", conn->hdrdgst_en); in iscsi_conn_get_param()
3600 len = sysfs_emit(buf, "%d\n", conn->datadgst_en); in iscsi_conn_get_param()
3603 len = sysfs_emit(buf, "%d\n", conn->ifmarker_en); in iscsi_conn_get_param()
3606 len = sysfs_emit(buf, "%d\n", conn->ofmarker_en); in iscsi_conn_get_param()
3609 len = sysfs_emit(buf, "%u\n", conn->exp_statsn); in iscsi_conn_get_param()
3612 len = sysfs_emit(buf, "%d\n", conn->persistent_port); in iscsi_conn_get_param()
3615 len = sysfs_emit(buf, "%s\n", conn->persistent_address); in iscsi_conn_get_param()
3618 len = sysfs_emit(buf, "%u\n", conn->statsn); in iscsi_conn_get_param()
3621 len = sysfs_emit(buf, "%u\n", conn->max_segment_size); in iscsi_conn_get_param()
3624 len = sysfs_emit(buf, "%u\n", conn->keepalive_tmo); in iscsi_conn_get_param()
3627 len = sysfs_emit(buf, "%u\n", conn->local_port); in iscsi_conn_get_param()
3630 len = sysfs_emit(buf, "%u\n", conn->tcp_timestamp_stat); in iscsi_conn_get_param()
3633 len = sysfs_emit(buf, "%u\n", conn->tcp_nagle_disable); in iscsi_conn_get_param()
3636 len = sysfs_emit(buf, "%u\n", conn->tcp_wsf_disable); in iscsi_conn_get_param()
3639 len = sysfs_emit(buf, "%u\n", conn->tcp_timer_scale); in iscsi_conn_get_param()
3642 len = sysfs_emit(buf, "%u\n", conn->tcp_timestamp_en); in iscsi_conn_get_param()
3645 len = sysfs_emit(buf, "%u\n", conn->fragment_disable); in iscsi_conn_get_param()
3648 len = sysfs_emit(buf, "%u\n", conn->ipv4_tos); in iscsi_conn_get_param()
3651 len = sysfs_emit(buf, "%u\n", conn->ipv6_traffic_class); in iscsi_conn_get_param()
3654 len = sysfs_emit(buf, "%u\n", conn->ipv6_flow_label); in iscsi_conn_get_param()
3657 len = sysfs_emit(buf, "%u\n", conn->is_fw_assigned_ipv6); in iscsi_conn_get_param()
3660 len = sysfs_emit(buf, "%u\n", conn->tcp_xmit_wsf); in iscsi_conn_get_param()
3663 len = sysfs_emit(buf, "%u\n", conn->tcp_recv_wsf); in iscsi_conn_get_param()
3666 len = sysfs_emit(buf, "%s\n", conn->local_ipaddr); in iscsi_conn_get_param()