diff options
| -rw-r--r-- | drivers/infiniband/ulp/iser/iscsi_iser.c | 4 | ||||
| -rw-r--r-- | drivers/scsi/iscsi_tcp.c | 4 | ||||
| -rw-r--r-- | drivers/scsi/libiscsi.c | 331 | ||||
| -rw-r--r-- | drivers/scsi/scsi_transport_iscsi.c | 4 | ||||
| -rw-r--r-- | include/scsi/iscsi_if.h | 11 | ||||
| -rw-r--r-- | include/scsi/libiscsi.h | 8 |
6 files changed, 294 insertions, 68 deletions
diff --git a/drivers/infiniband/ulp/iser/iscsi_iser.c b/drivers/infiniband/ulp/iser/iscsi_iser.c index a2622f4bd858..265606422278 100644 --- a/drivers/infiniband/ulp/iser/iscsi_iser.c +++ b/drivers/infiniband/ulp/iser/iscsi_iser.c @@ -577,7 +577,9 @@ static struct iscsi_transport iscsi_iser_transport = { ISCSI_PERSISTENT_ADDRESS | ISCSI_TARGET_NAME | ISCSI_TPGT | ISCSI_USERNAME | ISCSI_PASSWORD | - ISCSI_USERNAME_IN | ISCSI_PASSWORD_IN, + ISCSI_USERNAME_IN | ISCSI_PASSWORD_IN | + ISCSI_FAST_ABORT | ISCSI_ABORT_TMO | + ISCSI_PING_TMO | ISCSI_RECV_TMO, .host_param_mask = ISCSI_HOST_HWADDRESS | ISCSI_HOST_NETDEV_NAME | ISCSI_HOST_INITIATOR_NAME, diff --git a/drivers/scsi/iscsi_tcp.c b/drivers/scsi/iscsi_tcp.c index 90eae8e0d978..9b418522c9bf 100644 --- a/drivers/scsi/iscsi_tcp.c +++ b/drivers/scsi/iscsi_tcp.c @@ -2246,7 +2246,9 @@ static struct iscsi_transport iscsi_tcp_transport = { ISCSI_TARGET_NAME | ISCSI_TPGT | ISCSI_USERNAME | ISCSI_PASSWORD | ISCSI_USERNAME_IN | ISCSI_PASSWORD_IN | - ISCSI_FAST_ABORT, + ISCSI_FAST_ABORT | ISCSI_ABORT_TMO | + ISCSI_LU_RESET_TMO | + ISCSI_PING_TMO | ISCSI_RECV_TMO, .host_param_mask = ISCSI_HOST_HWADDRESS | ISCSI_HOST_IPADDRESS | ISCSI_HOST_INITIATOR_NAME | ISCSI_HOST_NETDEV_NAME, diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c index 5205ef2c29b2..96883614ba08 100644 --- a/drivers/scsi/libiscsi.c +++ b/drivers/scsi/libiscsi.c @@ -313,11 +313,70 @@ void iscsi_free_mgmt_task(struct iscsi_conn *conn, list_del_init(&mtask->running); if (conn->login_mtask == mtask) return; + + if (conn->ping_mtask == mtask) + conn->ping_mtask = NULL; __kfifo_put(conn->session->mgmtpool.queue, (void*)&mtask, sizeof(void*)); } EXPORT_SYMBOL_GPL(iscsi_free_mgmt_task); +static struct iscsi_mgmt_task * +__iscsi_conn_send_pdu(struct iscsi_conn *conn, struct iscsi_hdr *hdr, + char *data, uint32_t data_size) +{ + struct iscsi_session *session = conn->session; + struct iscsi_mgmt_task *mtask; + + if (session->state == ISCSI_STATE_TERMINATE) + return NULL; + + if (hdr->opcode == (ISCSI_OP_LOGIN | ISCSI_OP_IMMEDIATE) || + hdr->opcode == (ISCSI_OP_TEXT | ISCSI_OP_IMMEDIATE)) + /* + * Login and Text are sent serially, in + * request-followed-by-response sequence. + * Same mtask can be used. Same ITT must be used. + * Note that login_mtask is preallocated at conn_create(). + */ + mtask = conn->login_mtask; + else { + BUG_ON(conn->c_stage == ISCSI_CONN_INITIAL_STAGE); + BUG_ON(conn->c_stage == ISCSI_CONN_STOPPED); + + if (!__kfifo_get(session->mgmtpool.queue, + (void*)&mtask, sizeof(void*))) + return NULL; + } + + if (data_size) { + memcpy(mtask->data, data, data_size); + mtask->data_count = data_size; + } else + mtask->data_count = 0; + + memcpy(mtask->hdr, hdr, sizeof(struct iscsi_hdr)); + INIT_LIST_HEAD(&mtask->running); + list_add_tail(&mtask->running, &conn->mgmtqueue); + return mtask; +} + +int iscsi_conn_send_pdu(struct iscsi_cls_conn *cls_conn, struct iscsi_hdr *hdr, + char *data, uint32_t data_size) +{ + struct iscsi_conn *conn = cls_conn->dd_data; + struct iscsi_session *session = conn->session; + int err = 0; + + spin_lock_bh(&session->lock); + if (!__iscsi_conn_send_pdu(conn, hdr, data, data_size)) + err = -EPERM; + spin_unlock_bh(&session->lock); + scsi_queue_work(session->host, &conn->xmitwork); + return err; +} +EXPORT_SYMBOL_GPL(iscsi_conn_send_pdu); + /** * iscsi_cmd_rsp - SCSI Command Response processing * @conn: iscsi connection @@ -409,6 +468,39 @@ static void iscsi_tmf_rsp(struct iscsi_conn *conn, struct iscsi_hdr *hdr) wake_up(&conn->ehwait); } +static void iscsi_send_nopout(struct iscsi_conn *conn, struct iscsi_nopin *rhdr) +{ + struct iscsi_nopout hdr; + struct iscsi_mgmt_task *mtask; + + if (!rhdr && conn->ping_mtask) + return; + + memset(&hdr, 0, sizeof(struct iscsi_nopout)); + hdr.opcode = ISCSI_OP_NOOP_OUT | ISCSI_OP_IMMEDIATE; + hdr.flags = ISCSI_FLAG_CMD_FINAL; + + if (rhdr) { + memcpy(hdr.lun, rhdr->lun, 8); + hdr.ttt = rhdr->ttt; + hdr.itt = RESERVED_ITT; + } else + hdr.ttt = RESERVED_ITT; + + mtask = __iscsi_conn_send_pdu(conn, (struct iscsi_hdr *)&hdr, NULL, 0); + if (!mtask) { + printk(KERN_ERR "Could not send nopout\n"); + return; + } + + /* only track our nops */ + if (!rhdr) { + conn->ping_mtask = mtask; + conn->last_ping = jiffies; + } + scsi_queue_work(conn->session->host, &conn->xmitwork); +} + static int iscsi_handle_reject(struct iscsi_conn *conn, struct iscsi_hdr *hdr, char *data, int datalen) { @@ -453,6 +545,7 @@ int __iscsi_complete_pdu(struct iscsi_conn *conn, struct iscsi_hdr *hdr, struct iscsi_mgmt_task *mtask; uint32_t itt; + conn->last_recv = jiffies; if (hdr->itt != RESERVED_ITT) itt = get_itt(hdr->itt); else @@ -520,14 +613,22 @@ int __iscsi_complete_pdu(struct iscsi_conn *conn, struct iscsi_hdr *hdr, iscsi_free_mgmt_task(conn, mtask); break; case ISCSI_OP_NOOP_IN: - if (hdr->ttt != cpu_to_be32(ISCSI_RESERVED_TAG) || datalen) { + if (hdr->ttt != cpu_to_be32(ISCSI_RESERVED_TAG) || + datalen) { rc = ISCSI_ERR_PROTO; break; } conn->exp_statsn = be32_to_cpu(hdr->statsn) + 1; - if (iscsi_recv_pdu(conn->cls_conn, hdr, data, datalen)) - rc = ISCSI_ERR_CONN_FAILED; + if (conn->ping_mtask != mtask) { + /* + * If this is not in response to one of our + * nops then it must be from userspace. + */ + if (iscsi_recv_pdu(conn->cls_conn, hdr, data, + datalen)) + rc = ISCSI_ERR_CONN_FAILED; + } iscsi_free_mgmt_task(conn, mtask); break; default: @@ -547,8 +648,7 @@ int __iscsi_complete_pdu(struct iscsi_conn *conn, struct iscsi_hdr *hdr, if (hdr->ttt == cpu_to_be32(ISCSI_RESERVED_TAG)) break; - if (iscsi_recv_pdu(conn->cls_conn, hdr, NULL, 0)) - rc = ISCSI_ERR_CONN_FAILED; + iscsi_send_nopout(conn, (struct iscsi_nopin*)hdr); break; case ISCSI_OP_REJECT: rc = iscsi_handle_reject(conn, hdr, data, datalen); @@ -1003,62 +1103,6 @@ int iscsi_change_queue_depth(struct scsi_device *sdev, int depth) } EXPORT_SYMBOL_GPL(iscsi_change_queue_depth); -static struct iscsi_mgmt_task * -__iscsi_conn_send_pdu(struct iscsi_conn *conn, struct iscsi_hdr *hdr, - char *data, uint32_t data_size) -{ - struct iscsi_session *session = conn->session; - struct iscsi_mgmt_task *mtask; - - if (session->state == ISCSI_STATE_TERMINATE) - return NULL; - - if (hdr->opcode == (ISCSI_OP_LOGIN | ISCSI_OP_IMMEDIATE) || - hdr->opcode == (ISCSI_OP_TEXT | ISCSI_OP_IMMEDIATE)) - /* - * Login and Text are sent serially, in - * request-followed-by-response sequence. - * Same mtask can be used. Same ITT must be used. - * Note that login_mtask is preallocated at conn_create(). - */ - mtask = conn->login_mtask; - else { - BUG_ON(conn->c_stage == ISCSI_CONN_INITIAL_STAGE); - BUG_ON(conn->c_stage == ISCSI_CONN_STOPPED); - - if (!__kfifo_get(session->mgmtpool.queue, - (void*)&mtask, sizeof(void*))) - return NULL; - } - - if (data_size) { - memcpy(mtask->data, data, data_size); - mtask->data_count = data_size; - } else - mtask->data_count = 0; - - memcpy(mtask->hdr, hdr, sizeof(struct iscsi_hdr)); - INIT_LIST_HEAD(&mtask->running); - list_add_tail(&mtask->running, &conn->mgmtqueue); - return mtask; -} - -int iscsi_conn_send_pdu(struct iscsi_cls_conn *cls_conn, struct iscsi_hdr *hdr, - char *data, uint32_t data_size) -{ - struct iscsi_conn *conn = cls_conn->dd_data; - struct iscsi_session *session = conn->session; - int err = 0; - - spin_lock_bh(&session->lock); - if (!__iscsi_conn_send_pdu(conn, hdr, data, data_size)) - err = -EPERM; - spin_unlock_bh(&session->lock); - scsi_queue_work(session->host, &conn->xmitwork); - return err; -} -EXPORT_SYMBOL_GPL(iscsi_conn_send_pdu); - void iscsi_session_recovery_timedout(struct iscsi_cls_session *cls_session) { struct iscsi_session *session = class_to_transport_session(cls_session); @@ -1134,7 +1178,8 @@ static void iscsi_tmf_timedout(unsigned long data) } static int iscsi_exec_task_mgmt_fn(struct iscsi_conn *conn, - struct iscsi_tm *hdr, int age) + struct iscsi_tm *hdr, int age, + int timeout) { struct iscsi_session *session = conn->session; struct iscsi_mgmt_task *mtask; @@ -1149,7 +1194,7 @@ static int iscsi_exec_task_mgmt_fn(struct iscsi_conn *conn, return -EPERM; } conn->tmfcmd_pdus_cnt++; - conn->tmf_timer.expires = 30 * HZ + jiffies; + conn->tmf_timer.expires = timeout * HZ + jiffies; conn->tmf_timer.function = iscsi_tmf_timedout; conn->tmf_timer.data = (unsigned long)conn; add_timer(&conn->tmf_timer); @@ -1233,6 +1278,106 @@ static void iscsi_start_tx(struct iscsi_conn *conn) scsi_queue_work(conn->session->host, &conn->xmitwork); } +static enum scsi_eh_timer_return iscsi_eh_cmd_timed_out(struct scsi_cmnd *scmd) +{ + struct iscsi_cls_session *cls_session; + struct iscsi_session *session; + struct iscsi_conn *conn; + enum scsi_eh_timer_return rc = EH_NOT_HANDLED; + + cls_session = starget_to_session(scsi_target(scmd->device)); + session = class_to_transport_session(cls_session); + + debug_scsi("scsi cmd %p timedout\n", scmd); + + spin_lock(&session->lock); + if (session->state != ISCSI_STATE_LOGGED_IN) { + /* + * We are probably in the middle of iscsi recovery so let + * that complete and handle the error. + */ + rc = EH_RESET_TIMER; + goto done; + } + + conn = session->leadconn; + if (!conn) { + /* In the middle of shuting down */ + rc = EH_RESET_TIMER; + goto done; + } + + if (!conn->recv_timeout && !conn->ping_timeout) + goto done; + /* + * if the ping timedout then we are in the middle of cleaning up + * and can let the iscsi eh handle it + */ + if (time_before_eq(conn->last_recv + (conn->recv_timeout * HZ) + + (conn->ping_timeout * HZ), jiffies)) + rc = EH_RESET_TIMER; + /* + * if we are about to check the transport then give the command + * more time + */ + if (time_before_eq(conn->last_recv + (conn->recv_timeout * HZ), + jiffies)) + rc = EH_RESET_TIMER; + /* if in the middle of checking the transport then give us more time */ + if (conn->ping_mtask) + rc = EH_RESET_TIMER; +done: + spin_unlock(&session->lock); + debug_scsi("return %s\n", rc == EH_RESET_TIMER ? "timer reset" : "nh"); + return rc; +} + +static void iscsi_check_transport_timeouts(unsigned long data) +{ + struct iscsi_conn *conn = (struct iscsi_conn *)data; + struct iscsi_session *session = conn->session; + unsigned long timeout, next_timeout = 0, last_recv; + + spin_lock(&session->lock); + if (session->state != ISCSI_STATE_LOGGED_IN) + goto done; + + timeout = conn->recv_timeout; + if (!timeout) + goto done; + + timeout *= HZ; + last_recv = conn->last_recv; + if (time_before_eq(last_recv + timeout + (conn->ping_timeout * HZ), + jiffies)) { + printk(KERN_ERR "ping timeout of %d secs expired, " + "last rx %lu, last ping %lu, now %lu\n", + conn->ping_timeout, last_recv, + conn->last_ping, jiffies); + spin_unlock(&session->lock); + iscsi_conn_failure(conn, ISCSI_ERR_CONN_FAILED); + return; + } + + if (time_before_eq(last_recv + timeout, jiffies)) { + if (time_before_eq(conn->last_ping, last_recv)) { + /* send a ping to try to provoke some traffic */ + debug_scsi("Sending nopout as ping on conn %p\n", conn); + iscsi_send_nopout(conn, NULL); + } + next_timeout = last_recv + timeout + (conn->ping_timeout * HZ); + } else { + next_timeout = last_recv + timeout; + } + + if (next_timeout) { + debug_scsi("Setting next tmo %lu\n", next_timeout); + mod_timer(&conn->transport_timer, next_timeout); + } +done: + spin_unlock(&session->lock); +} + static void iscsi_prep_abort_task_pdu(struct iscsi_cmd_task *ctask, struct iscsi_tm *hdr) { @@ -1304,7 +1449,7 @@ int iscsi_eh_abort(struct scsi_cmnd *sc) hdr = &conn->tmhdr; iscsi_prep_abort_task_pdu(ctask, hdr); - if (iscsi_exec_task_mgmt_fn(conn, hdr, age)) { + if (iscsi_exec_task_mgmt_fn(conn, hdr, age, session->abort_timeout)) { rc = FAILED; goto failed; } @@ -1365,7 +1510,7 @@ static void iscsi_prep_lun_reset_pdu(struct scsi_cmnd *sc, struct iscsi_tm *hdr) hdr->flags = ISCSI_TM_FUNC_LOGICAL_UNIT_RESET & ISCSI_FLAG_TM_FUNC_MASK; hdr->flags |= ISCSI_FLAG_CMD_FINAL; int_to_scsilun(sc->device->lun, (struct scsi_lun *)hdr->lun); - hdr->rtt = ISCSI_RESERVED_TAG; + hdr->rtt = RESERVED_ITT; } int iscsi_eh_device_reset(struct scsi_cmnd *sc) @@ -1396,7 +1541,8 @@ int iscsi_eh_device_reset(struct scsi_cmnd *sc) hdr = &conn->tmhdr; iscsi_prep_lun_reset_pdu(sc, hdr); - if (iscsi_exec_task_mgmt_fn(conn, hdr, session->age)) { + if (iscsi_exec_task_mgmt_fn(conn, hdr, session->age, + session->lu_reset_timeout)) { rc = FAILED; goto unlock; } @@ -1572,12 +1718,14 @@ iscsi_session_setup(struct iscsi_transport *iscsit, shost->max_cmd_len = iscsit->max_cmd_len; shost->transportt = scsit; shost->transportt->create_work_queue = 1; + shost->transportt->eh_timed_out = iscsi_eh_cmd_timed_out; *hostno = shost->host_no; session = iscsi_hostdata(shost->hostdata); memset(session, 0, sizeof(struct iscsi_session)); session->host = shost; session->state = ISCSI_STATE_FREE; + session->fast_abort = 1; session->mgmtpool_max = ISCSI_MGMT_CMDS_MAX; session->cmds_max = cmds_max; session->queued_cmdsn = session->cmdsn = initial_cmdsn; @@ -1708,6 +1856,11 @@ iscsi_conn_setup(struct iscsi_cls_session *cls_session, uint32_t conn_idx) conn->id = conn_idx; conn->exp_statsn = 0; conn->tmf_state = TMF_INITIAL; + + init_timer(&conn->transport_timer); + conn->transport_timer.data = (unsigned long)conn; + conn->transport_timer.function = iscsi_check_transport_timeouts; + INIT_LIST_HEAD(&conn->run_list); INIT_LIST_HEAD(&conn->mgmt_run_list); INIT_LIST_HEAD(&conn->mgmtqueue); @@ -1757,6 +1910,8 @@ void iscsi_conn_teardown(struct iscsi_cls_conn *cls_conn) struct iscsi_session *session = conn->session; unsigned long flags; + del_timer_sync(&conn->transport_timer); + spin_lock_bh(&session->lock); conn->c_stage = ISCSI_CONN_CLEANUP_WAIT; if (session->leadconn == conn) { @@ -1823,11 +1978,29 @@ int iscsi_conn_start(struct iscsi_cls_conn *cls_conn) return -EINVAL; } + if (conn->ping_timeout && !conn->recv_timeout) { + printk(KERN_ERR "iscsi: invalid recv timeout of zero " + "Using 5 seconds\n."); + conn->recv_timeout = 5; + } + + if (conn->recv_timeout && !conn->ping_timeout) { + printk(KERN_ERR "iscsi: invalid ping timeout of zero " + "Using 5 seconds.\n"); + conn->ping_timeout = 5; + } + spin_lock_bh(&session->lock); conn->c_stage = ISCSI_CONN_STARTED; session->state = ISCSI_STATE_LOGGED_IN; session->queued_cmdsn = session->cmdsn; + conn->last_recv = jiffies; + conn->last_ping = jiffies; + if (conn->recv_timeout && conn->ping_timeout) + mod_timer(&conn->transport_timer, + jiffies + (conn->recv_timeout * HZ)); + switch(conn->stop_stage) { case STOP_CONN_RECOVER: /* @@ -1879,6 +2052,8 @@ static void iscsi_start_session_recovery(struct iscsi_session *session, { int old_stop_stage; + del_timer_sync(&conn->transport_timer); + mutex_lock(&session->eh_mutex); spin_lock_bh(&session->lock); if (conn->stop_stage == STOP_CONN_TERM) { @@ -1993,6 +2168,18 @@ int iscsi_set_param(struct iscsi_cls_conn *cls_conn, case ISCSI_PARAM_FAST_ABORT: sscanf(buf, "%d", &session->fast_abort); break; + case ISCSI_PARAM_ABORT_TMO: + sscanf(buf, "%d", &session->abort_timeout); + break; + case ISCSI_PARAM_LU_RESET_TMO: + sscanf(buf, "%d", &session->lu_reset_timeout); + break; + case ISCSI_PARAM_PING_TMO: + sscanf(buf, "%d", &conn->ping_timeout); + break; + case ISCSI_PARAM_RECV_TMO: + sscanf(buf, "%d", &conn->recv_timeout); + break; case ISCSI_PARAM_MAX_RECV_DLENGTH: sscanf(buf, "%d", &conn->max_recv_dlength); break; @@ -2110,6 +2297,12 @@ int iscsi_session_get_param(struct iscsi_cls_session *cls_session, case ISCSI_PARAM_FAST_ABORT: len = sprintf(buf, "%d\n", session->fast_abort); break; + case ISCSI_PARAM_ABORT_TMO: + len = sprintf(buf, "%d\n", session->abort_timeout); + break; + case ISCSI_PARAM_LU_RESET_TMO: + len = sprintf(buf, "%d\n", session->lu_reset_timeout); + break; case ISCSI_PARAM_INITIAL_R2T_EN: len = sprintf(buf, "%d\n", session->initial_r2t_en); break; @@ -2167,6 +2360,12 @@ int iscsi_conn_get_param(struct iscsi_cls_conn *cls_conn, int len; switch(param) { + case ISCSI_PARAM_PING_TMO: + len = sprintf(buf, "%u\n", conn->ping_timeout); + break; + case ISCSI_PARAM_RECV_TMO: + len = sprintf(buf, "%u\n", conn->recv_timeout); + break; case ISCSI_PARAM_MAX_RECV_DLENGTH: len = sprintf(buf, "%u\n", conn->max_recv_dlength); break; diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c index b82139dc4830..36aa50e45ec7 100644 --- a/drivers/scsi/scsi_transport_iscsi.c +++ b/drivers/scsi/scsi_transport_iscsi.c @@ -1202,6 +1202,8 @@ iscsi_conn_attr(port, ISCSI_PARAM_CONN_PORT); iscsi_conn_attr(exp_statsn, ISCSI_PARAM_EXP_STATSN); iscsi_conn_attr(persistent_address, ISCSI_PARAM_PERSISTENT_ADDRESS); iscsi_conn_attr(address, ISCSI_PARAM_CONN_ADDRESS); +iscsi_conn_attr(ping_tmo, ISCSI_PARAM_PING_TMO); +iscsi_conn_attr(recv_tmo, ISCSI_PARAM_RECV_TMO); #define iscsi_cdev_to_session(_cdev) \ iscsi_dev_to_session(_cdev->dev) @@ -1437,6 +1439,8 @@ iscsi_register_transport(struct iscsi_transport *tt) SETUP_CONN_RD_ATTR(exp_statsn, ISCSI_EXP_STATSN); SETUP_CONN_RD_ATTR(persistent_address, ISCSI_PERSISTENT_ADDRESS); SETUP_CONN_RD_ATTR(persistent_port, ISCSI_PERSISTENT_PORT); + SETUP_CONN_RD_ATTR(ping_tmo, ISCSI_PING_TMO); + SETUP_CONN_RD_ATTR(recv_tmo, ISCSI_RECV_TMO); BUG_ON(count > ISCSI_CONN_ATTRS); priv->conn_attrs[count] = NULL; diff --git a/include/scsi/iscsi_if.h b/include/scsi/iscsi_if.h index 8a4426df6c3a..e19e58423166 100644 --- a/include/scsi/iscsi_if.h +++ b/include/scsi/iscsi_if.h @@ -244,6 +244,12 @@ enum iscsi_param { ISCSI_PARAM_PASSWORD_IN, ISCSI_PARAM_FAST_ABORT, + ISCSI_PARAM_ABORT_TMO, + ISCSI_PARAM_LU_RESET_TMO, + ISCSI_PARAM_HOST_RESET_TMO, + + ISCSI_PARAM_PING_TMO, + ISCSI_PARAM_RECV_TMO, /* must always be last */ ISCSI_PARAM_MAX, }; @@ -275,6 +281,11 @@ enum iscsi_param { #define ISCSI_PASSWORD (1 << ISCSI_PARAM_PASSWORD) #define ISCSI_PASSWORD_IN (1 << ISCSI_PARAM_PASSWORD_IN) #define ISCSI_FAST_ABORT (1 << ISCSI_PARAM_FAST_ABORT) +#define ISCSI_ABORT_TMO (1 << ISCSI_PARAM_ABORT_TMO) +#define ISCSI_LU_RESET_TMO (1 << ISCSI_PARAM_LU_RESET_TMO) +#define ISCSI_HOST_RESET_TMO (1 << ISCSI_PARAM_HOST_RESET_TMO) +#define ISCSI_PING_TMO (1 << ISCSI_PARAM_PING_TMO) +#define ISCSI_RECV_TMO (1 << ISCSI_PARAM_RECV_TMO) /* iSCSI HBA params */ enum iscsi_host_param { diff --git a/include/scsi/libiscsi.h b/include/scsi/libiscsi.h index d68f74523f2e..889f51fabab9 100644 --- a/include/scsi/libiscsi.h +++ b/include/scsi/libiscsi.h @@ -148,6 +148,12 @@ struct iscsi_conn { * conn_stop() flag: stop to recover, stop to terminate */ int stop_stage; + struct timer_list transport_timer; + unsigned long last_recv; + unsigned long last_ping; + int ping_timeout; + int recv_timeout; + struct iscsi_mgmt_task *ping_mtask; /* iSCSI connection-wide sequencing */ uint32_t exp_statsn; @@ -238,6 +244,8 @@ struct iscsi_session { uint32_t queued_cmdsn; /* configuration */ + int abort_timeout; + int lu_reset_timeout; int initial_r2t_en; unsigned max_r2t; int imm_data_en; |