237 	struct iser_conn *iser_conn = to_iser_conn(ib_conn);  in iser_create_ib_conn_res()  local
280 	iser_conn->max_cmds = ISER_GET_MAX_XMIT_CMDS(max_send_wr - 1);  in iser_create_ib_conn_res()
353 static int iser_conn_state_comp_exch(struct iser_conn *iser_conn,  in iser_conn_state_comp_exch()  argument
359 	ret = (iser_conn->state == comp);  in iser_conn_state_comp_exch()
361 		iser_conn->state = exch;  in iser_conn_state_comp_exch()
368 	struct iser_conn *iser_conn;  in iser_release_work()  local
370 	iser_conn = container_of(work, struct iser_conn, release_work);  in iser_release_work()
373 	wait_for_completion(&iser_conn->stop_completion);  in iser_release_work()
375 	wait_for_completion(&iser_conn->ib_completion);  in iser_release_work()
377 	mutex_lock(&iser_conn->state_mutex);  in iser_release_work()
378 	iser_conn->state = ISER_CONN_DOWN;  in iser_release_work()
379 	mutex_unlock(&iser_conn->state_mutex);  in iser_release_work()
381 	iser_conn_release(iser_conn);  in iser_release_work()
395 static void iser_free_ib_conn_res(struct iser_conn *iser_conn, bool destroy)  in iser_free_ib_conn_res()  argument
397 	struct ib_conn *ib_conn = &iser_conn->ib_conn;  in iser_free_ib_conn_res()
401 		  iser_conn, ib_conn->cma_id, ib_conn->qp);  in iser_free_ib_conn_res()
410 		if (iser_conn->rx_descs)  in iser_free_ib_conn_res()
411 			iser_free_rx_descriptors(iser_conn);  in iser_free_ib_conn_res()
424 void iser_conn_release(struct iser_conn *iser_conn)  in iser_conn_release()  argument
426 	struct ib_conn *ib_conn = &iser_conn->ib_conn;  in iser_conn_release()
429 	list_del(&iser_conn->conn_list);  in iser_conn_release()
432 	mutex_lock(&iser_conn->state_mutex);  in iser_conn_release()
434 	if (iser_conn->state != ISER_CONN_DOWN) {  in iser_conn_release()
436 			  iser_conn, iser_conn->state);  in iser_conn_release()
437 		iscsi_destroy_endpoint(iser_conn->ep);  in iser_conn_release()
438 		iser_conn->state = ISER_CONN_DOWN;  in iser_conn_release()
444 	iser_free_ib_conn_res(iser_conn, true);  in iser_conn_release()
445 	mutex_unlock(&iser_conn->state_mutex);  in iser_conn_release()
452 	kfree(iser_conn);  in iser_conn_release()
462 int iser_conn_terminate(struct iser_conn *iser_conn)  in iser_conn_terminate()  argument
464 	struct ib_conn *ib_conn = &iser_conn->ib_conn;  in iser_conn_terminate()
468 	if (!iser_conn_state_comp_exch(iser_conn, ISER_CONN_UP,  in iser_conn_terminate()
472 	iser_info("iser_conn %p state %d\n", iser_conn, iser_conn->state);  in iser_conn_terminate()
475 	if (iser_conn->iscsi_conn)  in iser_conn_terminate()
476 		iscsi_suspend_queue(iser_conn->iscsi_conn);  in iser_conn_terminate()
487 				 iser_conn, err);  in iser_conn_terminate()
501 	struct iser_conn *iser_conn;  in iser_connect_error()  local
503 	iser_conn = cma_id->context;  in iser_connect_error()
504 	iser_conn->state = ISER_CONN_TERMINATING;  in iser_connect_error()
507 static void iser_calc_scsi_params(struct iser_conn *iser_conn,  in iser_calc_scsi_params()  argument
510 	struct iser_device *device = iser_conn->ib_conn.device;  in iser_calc_scsi_params()
527 	if (iser_conn->ib_conn.pi_support)  in iser_calc_scsi_params()
535 	iser_conn->scsi_sg_tablesize = min(sg_tablesize, sup_sg_tablesize);  in iser_calc_scsi_params()
536 	iser_conn->pages_per_mr =  in iser_calc_scsi_params()
537 		iser_conn->scsi_sg_tablesize + reserved_mr_pages;  in iser_calc_scsi_params()
546 	struct iser_conn *iser_conn;  in iser_addr_handler()  local
550 	iser_conn = cma_id->context;  in iser_addr_handler()
551 	if (iser_conn->state != ISER_CONN_PENDING)  in iser_addr_handler()
555 	ib_conn = &iser_conn->ib_conn;  in iser_addr_handler()
578 	iser_calc_scsi_params(iser_conn, iser_max_sectors);  in iser_addr_handler()
596 	struct iser_conn *iser_conn = cma_id->context;  in iser_route_handler()  local
597 	struct ib_conn *ib_conn = &iser_conn->ib_conn;  in iser_route_handler()
600 	if (iser_conn->state != ISER_CONN_PENDING)  in iser_route_handler()
635 	struct iser_conn *iser_conn;  in iser_connected_handler()  local
639 	iser_conn = cma_id->context;  in iser_connected_handler()
640 	if (iser_conn->state != ISER_CONN_PENDING)  in iser_connected_handler()
650 		iser_conn->snd_w_inv = !(flags & ISER_SEND_W_INV_NOT_SUP);  in iser_connected_handler()
654 		  iser_conn, iser_conn->snd_w_inv ? "remote" : "local");  in iser_connected_handler()
656 	iser_conn->state = ISER_CONN_UP;  in iser_connected_handler()
657 	complete(&iser_conn->up_completion);  in iser_connected_handler()
662 	struct iser_conn *iser_conn = cma_id->context;  in iser_disconnected_handler()  local
664 	if (iser_conn_terminate(iser_conn)) {  in iser_disconnected_handler()
665 		if (iser_conn->iscsi_conn)  in iser_disconnected_handler()
666 			iscsi_conn_failure(iser_conn->iscsi_conn,  in iser_disconnected_handler()
676 	struct iser_conn *iser_conn = cma_id->context;  in iser_cleanup_handler()  local
684 	iser_free_ib_conn_res(iser_conn, destroy);  in iser_cleanup_handler()
685 	complete(&iser_conn->ib_completion);  in iser_cleanup_handler()
691 	struct iser_conn *iser_conn;  in iser_cma_handler()  local
694 	iser_conn = cma_id->context;  in iser_cma_handler()
699 	mutex_lock(&iser_conn->state_mutex);  in iser_cma_handler()
733 		if (iser_conn->state != ISER_CONN_DOWN) {  in iser_cma_handler()
734 			iser_conn->ib_conn.cma_id = NULL;  in iser_cma_handler()
743 	mutex_unlock(&iser_conn->state_mutex);  in iser_cma_handler()
748 void iser_conn_init(struct iser_conn *iser_conn)  in iser_conn_init()  argument
750 	struct ib_conn *ib_conn = &iser_conn->ib_conn;  in iser_conn_init()
752 	iser_conn->state = ISER_CONN_INIT;  in iser_conn_init()
753 	init_completion(&iser_conn->stop_completion);  in iser_conn_init()
754 	init_completion(&iser_conn->ib_completion);  in iser_conn_init()
755 	init_completion(&iser_conn->up_completion);  in iser_conn_init()
756 	INIT_LIST_HEAD(&iser_conn->conn_list);  in iser_conn_init()
757 	mutex_init(&iser_conn->state_mutex);  in iser_conn_init()
766 int iser_connect(struct iser_conn *iser_conn, struct sockaddr *src_addr,  in iser_connect()  argument
769 	struct ib_conn *ib_conn = &iser_conn->ib_conn;  in iser_connect()
772 	mutex_lock(&iser_conn->state_mutex);  in iser_connect()
774 	sprintf(iser_conn->name, "%pISp", dst_addr);  in iser_connect()
776 	iser_info("connecting to: %s\n", iser_conn->name);  in iser_connect()
781 	iser_conn->state = ISER_CONN_PENDING;  in iser_connect()
784 					 iser_conn, RDMA_PS_TCP, IB_QPT_RC);  in iser_connect()
798 		wait_for_completion_interruptible(&iser_conn->up_completion);  in iser_connect()
800 		if (iser_conn->state != ISER_CONN_UP) {  in iser_connect()
805 	mutex_unlock(&iser_conn->state_mutex);  in iser_connect()
808 	list_add(&iser_conn->conn_list, &ig.connlist);  in iser_connect()
815 	iser_conn->state = ISER_CONN_DOWN;  in iser_connect()
817 	mutex_unlock(&iser_conn->state_mutex);  in iser_connect()
818 	iser_conn_release(iser_conn);  in iser_connect()
822 int iser_post_recvl(struct iser_conn *iser_conn)  in iser_post_recvl()  argument
824 	struct ib_conn *ib_conn = &iser_conn->ib_conn;  in iser_post_recvl()
825 	struct iser_login_desc *desc = &iser_conn->login_desc;  in iser_post_recvl()
846 int iser_post_recvm(struct iser_conn *iser_conn, struct iser_rx_desc *rx_desc)  in iser_post_recvm()  argument
848 	struct ib_conn *ib_conn = &iser_conn->ib_conn;  in iser_post_recvm()
955 		struct iser_conn *iser_conn = to_iser_conn(wc->qp->qp_context);  in iser_err_comp()  local
961 		if (iser_conn->iscsi_conn)  in iser_err_comp()
962 			iscsi_conn_failure(iser_conn->iscsi_conn,  in iser_err_comp()