1688 int iscsi_session_chkready(struct iscsi_cls_session *session)  in iscsi_session_chkready()  argument
1693 	spin_lock_irqsave(&session->lock, flags);  in iscsi_session_chkready()
1694 	switch (session->state) {  in iscsi_session_chkready()
1708 	spin_unlock_irqrestore(&session->lock, flags);  in iscsi_session_chkready()
1713 int iscsi_is_session_online(struct iscsi_cls_session *session)  in iscsi_is_session_online()  argument
1718 	spin_lock_irqsave(&session->lock, flags);  in iscsi_is_session_online()
1719 	if (session->state == ISCSI_SESSION_LOGGED_IN)  in iscsi_is_session_online()
1721 	spin_unlock_irqrestore(&session->lock, flags);  in iscsi_is_session_online()
1728 	struct iscsi_cls_session *session = iscsi_dev_to_session(dev);  in iscsi_session_release()  local
1731 	shost = iscsi_session_to_shost(session);  in iscsi_session_release()
1733 	ISCSI_DBG_TRANS_SESSION(session, "Completing session release\n");  in iscsi_session_release()
1734 	kfree(session);  in iscsi_session_release()
1789 	struct iscsi_cls_session *session;  in iscsi_user_scan_session()  local
1798 	session = iscsi_dev_to_session(dev);  in iscsi_user_scan_session()
1800 	ISCSI_DBG_TRANS_SESSION(session, "Scanning session\n");  in iscsi_user_scan_session()
1802 	shost = iscsi_session_to_shost(session);  in iscsi_user_scan_session()
1806 	spin_lock_irqsave(&session->lock, flags);  in iscsi_user_scan_session()
1807 	if (session->state != ISCSI_SESSION_LOGGED_IN) {  in iscsi_user_scan_session()
1808 		spin_unlock_irqrestore(&session->lock, flags);  in iscsi_user_scan_session()
1811 	id = session->target_id;  in iscsi_user_scan_session()
1812 	spin_unlock_irqrestore(&session->lock, flags);  in iscsi_user_scan_session()
1819 			scsi_scan_target(&session->dev, 0, id,  in iscsi_user_scan_session()
1825 	ISCSI_DBG_TRANS_SESSION(session, "Completed session scan\n");  in iscsi_user_scan_session()
1844 	struct iscsi_cls_session *session =  in iscsi_scan_session()  local
1846 	struct Scsi_Host *shost = iscsi_session_to_shost(session);  in iscsi_scan_session()
1854 	iscsi_user_scan_session(&session->dev, &scan_data);  in iscsi_scan_session()
1869 	struct iscsi_cls_session *session =  in iscsi_block_scsi_eh()  local
1874 	spin_lock_irqsave(&session->lock, flags);  in iscsi_block_scsi_eh()
1875 	while (session->state != ISCSI_SESSION_LOGGED_IN) {  in iscsi_block_scsi_eh()
1876 		if (session->state == ISCSI_SESSION_FREE) {  in iscsi_block_scsi_eh()
1880 		spin_unlock_irqrestore(&session->lock, flags);  in iscsi_block_scsi_eh()
1882 		spin_lock_irqsave(&session->lock, flags);  in iscsi_block_scsi_eh()
1884 	spin_unlock_irqrestore(&session->lock, flags);  in iscsi_block_scsi_eh()
1891 	struct iscsi_cls_session *session =  in session_recovery_timedout()  local
1896 	iscsi_cls_session_printk(KERN_INFO, session,  in session_recovery_timedout()
1898 				 session->recovery_tmo);  in session_recovery_timedout()
1900 	spin_lock_irqsave(&session->lock, flags);  in session_recovery_timedout()
1901 	switch (session->state) {  in session_recovery_timedout()
1903 		session->state = ISCSI_SESSION_FREE;  in session_recovery_timedout()
1908 		spin_unlock_irqrestore(&session->lock, flags);  in session_recovery_timedout()
1911 	spin_unlock_irqrestore(&session->lock, flags);  in session_recovery_timedout()
1913 	if (session->transport->session_recovery_timedout)  in session_recovery_timedout()
1914 		session->transport->session_recovery_timedout(session);  in session_recovery_timedout()
1916 	ISCSI_DBG_TRANS_SESSION(session, "Unblocking SCSI target\n");  in session_recovery_timedout()
1917 	scsi_target_unblock(&session->dev, SDEV_TRANSPORT_OFFLINE);  in session_recovery_timedout()
1918 	ISCSI_DBG_TRANS_SESSION(session, "Completed unblocking SCSI target\n");  in session_recovery_timedout()
1923 	struct iscsi_cls_session *session =  in __iscsi_unblock_session()  local
1926 	struct Scsi_Host *shost = iscsi_session_to_shost(session);  in __iscsi_unblock_session()
1930 	ISCSI_DBG_TRANS_SESSION(session, "Unblocking session\n");  in __iscsi_unblock_session()
1935 	cancel_delayed_work(&session->recovery_work);  in __iscsi_unblock_session()
1936 	spin_lock_irqsave(&session->lock, flags);  in __iscsi_unblock_session()
1937 	session->state = ISCSI_SESSION_LOGGED_IN;  in __iscsi_unblock_session()
1938 	spin_unlock_irqrestore(&session->lock, flags);  in __iscsi_unblock_session()
1940 	scsi_target_unblock(&session->dev, SDEV_RUNNING);  in __iscsi_unblock_session()
1947 		if (scsi_queue_work(shost, &session->scan_work))  in __iscsi_unblock_session()
1950 	ISCSI_DBG_TRANS_SESSION(session, "Completed unblocking session\n");  in __iscsi_unblock_session()
1959 void iscsi_unblock_session(struct iscsi_cls_session *session)  in iscsi_unblock_session()  argument
1961 	queue_work(iscsi_eh_timer_workq, &session->unblock_work);  in iscsi_unblock_session()
1972 	struct iscsi_cls_session *session =  in __iscsi_block_session()  local
1977 	ISCSI_DBG_TRANS_SESSION(session, "Blocking session\n");  in __iscsi_block_session()
1978 	spin_lock_irqsave(&session->lock, flags);  in __iscsi_block_session()
1979 	session->state = ISCSI_SESSION_FAILED;  in __iscsi_block_session()
1980 	spin_unlock_irqrestore(&session->lock, flags);  in __iscsi_block_session()
1981 	scsi_target_block(&session->dev);  in __iscsi_block_session()
1982 	ISCSI_DBG_TRANS_SESSION(session, "Completed SCSI target blocking\n");  in __iscsi_block_session()
1983 	if (session->recovery_tmo >= 0)  in __iscsi_block_session()
1985 				   &session->recovery_work,  in __iscsi_block_session()
1986 				   session->recovery_tmo * HZ);  in __iscsi_block_session()
1989 void iscsi_block_session(struct iscsi_cls_session *session)  in iscsi_block_session()  argument
1991 	queue_work(iscsi_eh_timer_workq, &session->block_work);  in iscsi_block_session()
1997 	struct iscsi_cls_session *session =  in __iscsi_unbind_session()  local
2000 	struct Scsi_Host *shost = iscsi_session_to_shost(session);  in __iscsi_unbind_session()
2005 	ISCSI_DBG_TRANS_SESSION(session, "Unbinding session\n");  in __iscsi_unbind_session()
2009 	spin_lock_irqsave(&session->lock, flags);  in __iscsi_unbind_session()
2010 	if (session->target_id == ISCSI_MAX_TARGET) {  in __iscsi_unbind_session()
2011 		spin_unlock_irqrestore(&session->lock, flags);  in __iscsi_unbind_session()
2016 	target_id = session->target_id;  in __iscsi_unbind_session()
2017 	session->target_id = ISCSI_MAX_TARGET;  in __iscsi_unbind_session()
2018 	spin_unlock_irqrestore(&session->lock, flags);  in __iscsi_unbind_session()
2021 	if (session->ida_used)  in __iscsi_unbind_session()
2024 	scsi_remove_target(&session->dev);  in __iscsi_unbind_session()
2025 	iscsi_session_event(session, ISCSI_KEVENT_UNBIND_SESSION);  in __iscsi_unbind_session()
2026 	ISCSI_DBG_TRANS_SESSION(session, "Completed target removal\n");  in __iscsi_unbind_session()
2033 	struct iscsi_cls_session *session;  in iscsi_alloc_session()  local
2035 	session = kzalloc(sizeof(*session) + dd_size,  in iscsi_alloc_session()
2037 	if (!session)  in iscsi_alloc_session()
2040 	session->transport = transport;  in iscsi_alloc_session()
2041 	session->creator = -1;  in iscsi_alloc_session()
2042 	session->recovery_tmo = 120;  in iscsi_alloc_session()
2043 	session->state = ISCSI_SESSION_FREE;  in iscsi_alloc_session()
2044 	INIT_DELAYED_WORK(&session->recovery_work, session_recovery_timedout);  in iscsi_alloc_session()
2045 	INIT_LIST_HEAD(&session->sess_list);  in iscsi_alloc_session()
2046 	INIT_WORK(&session->unblock_work, __iscsi_unblock_session);  in iscsi_alloc_session()
2047 	INIT_WORK(&session->block_work, __iscsi_block_session);  in iscsi_alloc_session()
2048 	INIT_WORK(&session->unbind_work, __iscsi_unbind_session);  in iscsi_alloc_session()
2049 	INIT_WORK(&session->scan_work, iscsi_scan_session);  in iscsi_alloc_session()
2050 	spin_lock_init(&session->lock);  in iscsi_alloc_session()
2054 	session->dev.parent = &shost->shost_gendev;  in iscsi_alloc_session()
2055 	session->dev.release = iscsi_session_release;  in iscsi_alloc_session()
2056 	device_initialize(&session->dev);  in iscsi_alloc_session()
2058 		session->dd_data = &session[1];  in iscsi_alloc_session()
2060 	ISCSI_DBG_TRANS_SESSION(session, "Completed session allocation\n");  in iscsi_alloc_session()
2061 	return session;  in iscsi_alloc_session()
2065 int iscsi_add_session(struct iscsi_cls_session *session, unsigned int target_id)  in iscsi_add_session()  argument
2067 	struct Scsi_Host *shost = iscsi_session_to_shost(session);  in iscsi_add_session()
2074 	session->sid = atomic_add_return(1, &iscsi_session_nr);  in iscsi_add_session()
2080 			iscsi_cls_session_printk(KERN_ERR, session,  in iscsi_add_session()
2084 		session->target_id = (unsigned int)id;  in iscsi_add_session()
2085 		session->ida_used = true;  in iscsi_add_session()
2087 		session->target_id = target_id;  in iscsi_add_session()
2089 	dev_set_name(&session->dev, "session%u", session->sid);  in iscsi_add_session()
2090 	err = device_add(&session->dev);  in iscsi_add_session()
2092 		iscsi_cls_session_printk(KERN_ERR, session,  in iscsi_add_session()
2096 	transport_register_device(&session->dev);  in iscsi_add_session()
2099 	list_add(&session->sess_list, &sesslist);  in iscsi_add_session()
2102 	iscsi_session_event(session, ISCSI_KEVENT_CREATE_SESSION);  in iscsi_add_session()
2103 	ISCSI_DBG_TRANS_SESSION(session, "Completed session adding\n");  in iscsi_add_session()
2107 	if (session->ida_used)  in iscsi_add_session()
2108 		ida_simple_remove(&iscsi_sess_ida, session->target_id);  in iscsi_add_session()
2127 	struct iscsi_cls_session *session;  in iscsi_create_session()  local
2129 	session = iscsi_alloc_session(shost, transport, dd_size);  in iscsi_create_session()
2130 	if (!session)  in iscsi_create_session()
2133 	if (iscsi_add_session(session, target_id)) {  in iscsi_create_session()
2134 		iscsi_free_session(session);  in iscsi_create_session()
2137 	return session;  in iscsi_create_session()
2163 void iscsi_remove_session(struct iscsi_cls_session *session)  in iscsi_remove_session()  argument
2165 	struct Scsi_Host *shost = iscsi_session_to_shost(session);  in iscsi_remove_session()
2169 	ISCSI_DBG_TRANS_SESSION(session, "Removing session\n");  in iscsi_remove_session()
2172 	list_del(&session->sess_list);  in iscsi_remove_session()
2178 	if (!cancel_delayed_work(&session->recovery_work))  in iscsi_remove_session()
2186 	spin_lock_irqsave(&session->lock, flags);  in iscsi_remove_session()
2187 	session->state = ISCSI_SESSION_FREE;  in iscsi_remove_session()
2188 	spin_unlock_irqrestore(&session->lock, flags);  in iscsi_remove_session()
2190 	scsi_target_unblock(&session->dev, SDEV_TRANSPORT_OFFLINE);  in iscsi_remove_session()
2193 	__iscsi_unbind_session(&session->unbind_work);  in iscsi_remove_session()
2196 	err = device_for_each_child(&session->dev, NULL,  in iscsi_remove_session()
2199 		iscsi_cls_session_printk(KERN_ERR, session,  in iscsi_remove_session()
2203 	transport_unregister_device(&session->dev);  in iscsi_remove_session()
2205 	ISCSI_DBG_TRANS_SESSION(session, "Completing session removal\n");  in iscsi_remove_session()
2206 	device_del(&session->dev);  in iscsi_remove_session()
2210 void iscsi_free_session(struct iscsi_cls_session *session)  in iscsi_free_session()  argument
2212 	ISCSI_DBG_TRANS_SESSION(session, "Freeing session\n");  in iscsi_free_session()
2213 	iscsi_session_event(session, ISCSI_KEVENT_DESTROY_SESSION);  in iscsi_free_session()
2214 	put_device(&session->dev);  in iscsi_free_session()
2225 int iscsi_destroy_session(struct iscsi_cls_session *session)  in iscsi_destroy_session()  argument
2227 	iscsi_remove_session(session);  in iscsi_destroy_session()
2228 	ISCSI_DBG_TRANS_SESSION(session, "Completing session destruction\n");  in iscsi_destroy_session()
2229 	iscsi_free_session(session);  in iscsi_destroy_session()
2250 iscsi_create_conn(struct iscsi_cls_session *session, int dd_size, uint32_t cid)  in iscsi_create_conn()  argument
2252 	struct iscsi_transport *transport = session->transport;  in iscsi_create_conn()
2269 	if (!get_device(&session->dev))  in iscsi_create_conn()
2272 	dev_set_name(&conn->dev, "connection%d:%u", session->sid, cid);  in iscsi_create_conn()
2273 	conn->dev.parent = &session->dev;  in iscsi_create_conn()
2277 		iscsi_cls_session_printk(KERN_ERR, session, "could not "  in iscsi_create_conn()
2291 	put_device(&session->dev);  in iscsi_create_conn()
2639 int iscsi_session_event(struct iscsi_cls_session *session,  in iscsi_session_event()  argument
2649 	priv = iscsi_if_transport_lookup(session->transport);  in iscsi_session_event()
2652 	shost = iscsi_session_to_shost(session);  in iscsi_session_event()
2656 		iscsi_cls_session_printk(KERN_ERR, session,  in iscsi_session_event()
2664 	ev->transport_handle = iscsi_handle(session->transport);  in iscsi_session_event()
2670 		ev->r.d_session.sid = session->sid;  in iscsi_session_event()
2674 		ev->r.c_session_ret.sid = session->sid;  in iscsi_session_event()
2678 		ev->r.unbind_session.sid = session->sid;  in iscsi_session_event()
2681 		iscsi_cls_session_printk(KERN_ERR, session, "Invalid event "  in iscsi_session_event()
2693 		iscsi_cls_session_printk(KERN_ERR, session,  in iscsi_session_event()
2698 	ISCSI_DBG_TRANS_SESSION(session, "Completed handling event %d rc %d\n",  in iscsi_session_event()
2711 	struct iscsi_cls_session *session;  in iscsi_if_create_session()  local
2714 	session = transport->create_session(ep, cmds_max, queue_depth,  in iscsi_if_create_session()
2716 	if (!session)  in iscsi_if_create_session()
2719 	session->creator = pid;  in iscsi_if_create_session()
2720 	shost = iscsi_session_to_shost(session);  in iscsi_if_create_session()
2722 	ev->r.c_session_ret.sid = session->sid;  in iscsi_if_create_session()
2723 	ISCSI_DBG_TRANS_SESSION(session,  in iscsi_if_create_session()
2732 	struct iscsi_cls_session *session;  in iscsi_if_create_conn()  local
2734 	session = iscsi_session_lookup(ev->u.c_conn.sid);  in iscsi_if_create_conn()
2735 	if (!session) {  in iscsi_if_create_conn()
2741 	conn = transport->create_conn(session, ev->u.c_conn.cid);  in iscsi_if_create_conn()
2743 		iscsi_cls_session_printk(KERN_ERR, session,  in iscsi_if_create_conn()
2748 	ev->r.c_conn_ret.sid = session->sid;  in iscsi_if_create_conn()
2776 	struct iscsi_cls_session *session;  in iscsi_set_param()  local
2779 	session = iscsi_session_lookup(ev->u.set_param.sid);  in iscsi_set_param()
2781 	if (!conn || !session)  in iscsi_set_param()
2787 		session->recovery_tmo = value;  in iscsi_set_param()
3385 	struct iscsi_cls_session *session;  in iscsi_logout_flashnode_sid()  local
3401 	session = iscsi_session_lookup(ev->u.logout_flashnode_sid.sid);  in iscsi_logout_flashnode_sid()
3402 	if (!session) {  in iscsi_logout_flashnode_sid()
3409 	err = transport->logout_flashnode_sid(session);  in iscsi_logout_flashnode_sid()
3496 	struct iscsi_cls_session *session;  in iscsi_if_recv_msg()  local
3535 		session = iscsi_session_lookup(ev->u.d_session.sid);  in iscsi_if_recv_msg()
3536 		if (session)  in iscsi_if_recv_msg()
3537 			transport->destroy_session(session);  in iscsi_if_recv_msg()
3542 		session = iscsi_session_lookup(ev->u.d_session.sid);  in iscsi_if_recv_msg()
3543 		if (session)  in iscsi_if_recv_msg()
3544 			scsi_queue_work(iscsi_session_to_shost(session),  in iscsi_if_recv_msg()
3545 					&session->unbind_work);  in iscsi_if_recv_msg()
3556 		session = iscsi_session_lookup(ev->u.b_conn.sid);  in iscsi_if_recv_msg()
3562 		if (!session || !conn) {  in iscsi_if_recv_msg()
3567 		ev->r.retcode =	transport->bind_conn(session, conn,  in iscsi_if_recv_msg()
3942 	struct iscsi_cls_session *session = 				\
3944 	struct iscsi_transport *t = session->transport;			\
3948 	return t->get_session_param(session, param, buf);		\
4001 	struct iscsi_cls_session *session = iscsi_dev_to_session(dev->parent);  in show_priv_session_state()  local
4002 	return sprintf(buf, "%s\n", iscsi_session_state_name(session->state));  in show_priv_session_state()
4010 	struct iscsi_cls_session *session = iscsi_dev_to_session(dev->parent);  in show_priv_session_creator()  local
4011 	return sprintf(buf, "%d\n", session->creator);  in show_priv_session_creator()
4019 	struct iscsi_cls_session *session = iscsi_dev_to_session(dev->parent);  in show_priv_session_target_id()  local
4020 	return sprintf(buf, "%d\n", session->target_id);  in show_priv_session_target_id()
4030 	struct iscsi_cls_session *session = 				\
4032 	if (session->field == -1)					\
4034 	return sprintf(buf, format"\n", session->field);		\
4045 	struct iscsi_cls_session *session =				\
4047 	if ((session->state == ISCSI_SESSION_FREE) ||			\
4048 	    (session->state == ISCSI_SESSION_FAILED))			\
4051 		session->field = -1;					\
4056 		session->field = val;					\
4121 	struct iscsi_cls_session *session = transport_class_to_session(cdev);  in iscsi_session_attr_is_visible()  local
4122 	struct iscsi_transport *t = session->transport;  in iscsi_session_attr_is_visible()
4352 	struct iscsi_cls_session *session;  in iscsi_session_match()  local
4359 	session = iscsi_dev_to_session(dev);  in iscsi_session_match()
4360 	shost = iscsi_session_to_shost(session);  in iscsi_session_match()
4374 	struct iscsi_cls_session *session;  in iscsi_conn_match()  local
4383 	session = iscsi_dev_to_session(conn->dev.parent);  in iscsi_conn_match()
4384 	shost = iscsi_session_to_shost(session);  in iscsi_conn_match()