Lines Matching +full:sig +full:- +full:dir +full:- +full:cmd
1 // SPDX-License-Identifier: GPL-2.0-or-later
7 * Nicholas A. Bellinger <nab@linux-iscsi.org>
50 isert_put_response(struct iscsit_conn *conn, struct iscsit_cmd *cmd);
70 return -EINVAL; in isert_sg_tablesize_set()
76 isert_prot_cmd(struct isert_conn *conn, struct se_cmd *cmd) in isert_prot_cmd() argument
78 return (conn->pi_support && in isert_prot_cmd()
79 cmd->prot_op != TARGET_PROT_NORMAL); in isert_prot_cmd()
88 ib_event_msg(e->event), e->event, isert_conn); in isert_qp_event_callback()
90 switch (e->event) { in isert_qp_event_callback()
92 rdma_notify(isert_conn->cm_id, IB_EVENT_COMM_EST); in isert_qp_event_callback()
107 struct isert_device *device = isert_conn->device; in isert_create_qp()
108 struct ib_device *ib_dev = device->ib_device; in isert_create_qp()
112 isert_conn->cq = ib_cq_pool_get(ib_dev, cq_size, -1, IB_POLL_WORKQUEUE); in isert_create_qp()
113 if (IS_ERR(isert_conn->cq)) { in isert_create_qp()
115 ret = PTR_ERR(isert_conn->cq); in isert_create_qp()
118 isert_conn->cq_size = cq_size; in isert_create_qp()
123 attr.send_cq = isert_conn->cq; in isert_create_qp()
124 attr.recv_cq = isert_conn->cq; in isert_create_qp()
127 factor = rdma_rw_mr_factor(device->ib_device, cma_id->port_num, in isert_create_qp()
130 attr.cap.max_send_sge = device->ib_device->attrs.max_send_sge; in isert_create_qp()
134 if (device->pi_capable) in isert_create_qp()
137 ret = rdma_create_qp(cma_id, device->pd, &attr); in isert_create_qp()
140 ib_cq_pool_put(isert_conn->cq, isert_conn->cq_size); in isert_create_qp()
145 return cma_id->qp; in isert_create_qp()
151 struct isert_device *device = isert_conn->device; in isert_alloc_rx_descriptors()
152 struct ib_device *ib_dev = device->ib_device; in isert_alloc_rx_descriptors()
158 isert_conn->rx_descs = kcalloc(ISERT_QP_MAX_RECV_DTOS, in isert_alloc_rx_descriptors()
161 if (!isert_conn->rx_descs) in isert_alloc_rx_descriptors()
162 return -ENOMEM; in isert_alloc_rx_descriptors()
164 rx_desc = isert_conn->rx_descs; in isert_alloc_rx_descriptors()
167 dma_addr = ib_dma_map_single(ib_dev, rx_desc->buf, in isert_alloc_rx_descriptors()
172 rx_desc->dma_addr = dma_addr; in isert_alloc_rx_descriptors()
174 rx_sg = &rx_desc->rx_sg; in isert_alloc_rx_descriptors()
175 rx_sg->addr = rx_desc->dma_addr + isert_get_hdr_offset(rx_desc); in isert_alloc_rx_descriptors()
176 rx_sg->length = ISER_RX_PAYLOAD_SIZE; in isert_alloc_rx_descriptors()
177 rx_sg->lkey = device->pd->local_dma_lkey; in isert_alloc_rx_descriptors()
178 rx_desc->rx_cqe.done = isert_recv_done; in isert_alloc_rx_descriptors()
184 rx_desc = isert_conn->rx_descs; in isert_alloc_rx_descriptors()
186 ib_dma_unmap_single(ib_dev, rx_desc->dma_addr, in isert_alloc_rx_descriptors()
189 kfree(isert_conn->rx_descs); in isert_alloc_rx_descriptors()
190 isert_conn->rx_descs = NULL; in isert_alloc_rx_descriptors()
192 return -ENOMEM; in isert_alloc_rx_descriptors()
198 struct ib_device *ib_dev = isert_conn->device->ib_device; in isert_free_rx_descriptors()
202 if (!isert_conn->rx_descs) in isert_free_rx_descriptors()
205 rx_desc = isert_conn->rx_descs; in isert_free_rx_descriptors()
207 ib_dma_unmap_single(ib_dev, rx_desc->dma_addr, in isert_free_rx_descriptors()
211 kfree(isert_conn->rx_descs); in isert_free_rx_descriptors()
212 isert_conn->rx_descs = NULL; in isert_free_rx_descriptors()
218 struct ib_device *ib_dev = device->ib_device; in isert_create_device_ib_res()
221 isert_dbg("devattr->max_send_sge: %d devattr->max_recv_sge %d\n", in isert_create_device_ib_res()
222 ib_dev->attrs.max_send_sge, ib_dev->attrs.max_recv_sge); in isert_create_device_ib_res()
223 isert_dbg("devattr->max_sge_rd: %d\n", ib_dev->attrs.max_sge_rd); in isert_create_device_ib_res()
225 device->pd = ib_alloc_pd(ib_dev, 0); in isert_create_device_ib_res()
226 if (IS_ERR(device->pd)) { in isert_create_device_ib_res()
227 ret = PTR_ERR(device->pd); in isert_create_device_ib_res()
234 if (ib_dev->attrs.kernel_cap_flags & IBK_INTEGRITY_HANDOVER) in isert_create_device_ib_res()
235 device->pi_capable = true; in isert_create_device_ib_res()
237 device->pi_capable = false; in isert_create_device_ib_res()
247 ib_dealloc_pd(device->pd); in isert_free_device_ib_res()
254 device->refcount--; in isert_device_put()
255 isert_info("device %p refcount %d\n", device, device->refcount); in isert_device_put()
256 if (!device->refcount) { in isert_device_put()
258 list_del(&device->dev_node); in isert_device_put()
272 if (device->ib_device->node_guid == cma_id->device->node_guid) { in isert_device_get()
273 device->refcount++; in isert_device_get()
275 device, device->refcount); in isert_device_get()
284 return ERR_PTR(-ENOMEM); in isert_device_get()
287 INIT_LIST_HEAD(&device->dev_node); in isert_device_get()
289 device->ib_device = cma_id->device; in isert_device_get()
297 device->refcount++; in isert_device_get()
298 list_add_tail(&device->dev_node, &device_list); in isert_device_get()
300 device, device->refcount); in isert_device_get()
309 isert_conn->state = ISER_CONN_INIT; in isert_init_conn()
310 INIT_LIST_HEAD(&isert_conn->node); in isert_init_conn()
311 init_completion(&isert_conn->login_comp); in isert_init_conn()
312 init_completion(&isert_conn->login_req_comp); in isert_init_conn()
313 init_waitqueue_head(&isert_conn->rem_wait); in isert_init_conn()
314 kref_init(&isert_conn->kref); in isert_init_conn()
315 mutex_init(&isert_conn->mutex); in isert_init_conn()
316 INIT_WORK(&isert_conn->release_work, isert_release_work); in isert_init_conn()
322 struct ib_device *ib_dev = isert_conn->device->ib_device; in isert_free_login_buf()
324 ib_dma_unmap_single(ib_dev, isert_conn->login_rsp_dma, in isert_free_login_buf()
326 kfree(isert_conn->login_rsp_buf); in isert_free_login_buf()
328 ib_dma_unmap_single(ib_dev, isert_conn->login_desc->dma_addr, in isert_free_login_buf()
330 kfree(isert_conn->login_desc); in isert_free_login_buf()
339 isert_conn->login_desc = kzalloc(sizeof(*isert_conn->login_desc), in isert_alloc_login_buf()
341 if (!isert_conn->login_desc) in isert_alloc_login_buf()
342 return -ENOMEM; in isert_alloc_login_buf()
344 isert_conn->login_desc->dma_addr = ib_dma_map_single(ib_dev, in isert_alloc_login_buf()
345 isert_conn->login_desc->buf, in isert_alloc_login_buf()
347 ret = ib_dma_mapping_error(ib_dev, isert_conn->login_desc->dma_addr); in isert_alloc_login_buf()
350 isert_conn->login_desc->dma_addr = 0; in isert_alloc_login_buf()
354 isert_conn->login_rsp_buf = kzalloc(ISER_RX_PAYLOAD_SIZE, GFP_KERNEL); in isert_alloc_login_buf()
355 if (!isert_conn->login_rsp_buf) { in isert_alloc_login_buf()
356 ret = -ENOMEM; in isert_alloc_login_buf()
360 isert_conn->login_rsp_dma = ib_dma_map_single(ib_dev, in isert_alloc_login_buf()
361 isert_conn->login_rsp_buf, in isert_alloc_login_buf()
363 ret = ib_dma_mapping_error(ib_dev, isert_conn->login_rsp_dma); in isert_alloc_login_buf()
366 isert_conn->login_rsp_dma = 0; in isert_alloc_login_buf()
373 kfree(isert_conn->login_rsp_buf); in isert_alloc_login_buf()
375 ib_dma_unmap_single(ib_dev, isert_conn->login_desc->dma_addr, in isert_alloc_login_buf()
378 kfree(isert_conn->login_desc); in isert_alloc_login_buf()
386 struct ib_device_attr *attr = &isert_conn->device->ib_device->attrs; in isert_set_nego_params()
389 isert_conn->initiator_depth = min_t(u8, param->initiator_depth, in isert_set_nego_params()
390 attr->max_qp_init_rd_atom); in isert_set_nego_params()
391 isert_dbg("Using initiator_depth: %u\n", isert_conn->initiator_depth); in isert_set_nego_params()
393 if (param->private_data) { in isert_set_nego_params()
394 u8 flags = *(u8 *)param->private_data; in isert_set_nego_params()
400 isert_conn->snd_w_inv = !(flags & ISER_SEND_W_INV_NOT_SUP) && in isert_set_nego_params()
401 (attr->device_cap_flags & in isert_set_nego_params()
403 if (isert_conn->snd_w_inv) in isert_set_nego_params()
411 ib_destroy_qp(isert_conn->qp); in isert_destroy_qp()
412 ib_cq_pool_put(isert_conn->cq, isert_conn->cq_size); in isert_destroy_qp()
418 struct isert_np *isert_np = cma_id->context; in isert_connect_request()
419 struct iscsi_np *np = isert_np->np; in isert_connect_request()
424 spin_lock_bh(&np->np_thread_lock); in isert_connect_request()
425 if (!np->enabled) { in isert_connect_request()
426 spin_unlock_bh(&np->np_thread_lock); in isert_connect_request()
430 spin_unlock_bh(&np->np_thread_lock); in isert_connect_request()
433 cma_id, cma_id->context); in isert_connect_request()
437 return -ENOMEM; in isert_connect_request()
440 isert_conn->cm_id = cma_id; in isert_connect_request()
447 isert_conn->device = device; in isert_connect_request()
449 ret = isert_alloc_login_buf(isert_conn, cma_id->device); in isert_connect_request()
453 isert_set_nego_params(isert_conn, &event->param.conn); in isert_connect_request()
455 isert_conn->qp = isert_create_qp(isert_conn, cma_id); in isert_connect_request()
456 if (IS_ERR(isert_conn->qp)) { in isert_connect_request()
457 ret = PTR_ERR(isert_conn->qp); in isert_connect_request()
469 mutex_lock(&isert_np->mutex); in isert_connect_request()
470 list_add_tail(&isert_conn->node, &isert_np->accepted); in isert_connect_request()
471 mutex_unlock(&isert_np->mutex); in isert_connect_request()
490 struct isert_device *device = isert_conn->device; in isert_connect_release()
497 if (isert_conn->cm_id && in isert_connect_release()
498 !isert_conn->dev_removed) in isert_connect_release()
499 rdma_destroy_id(isert_conn->cm_id); in isert_connect_release()
501 if (isert_conn->qp) in isert_connect_release()
504 if (isert_conn->login_desc) in isert_connect_release()
509 if (isert_conn->dev_removed) in isert_connect_release()
510 wake_up_interruptible(&isert_conn->rem_wait); in isert_connect_release()
518 struct isert_conn *isert_conn = cma_id->qp->qp_context; in isert_connected_handler()
519 struct isert_np *isert_np = cma_id->context; in isert_connected_handler()
523 mutex_lock(&isert_conn->mutex); in isert_connected_handler()
524 isert_conn->state = ISER_CONN_UP; in isert_connected_handler()
525 kref_get(&isert_conn->kref); in isert_connected_handler()
526 mutex_unlock(&isert_conn->mutex); in isert_connected_handler()
528 mutex_lock(&isert_np->mutex); in isert_connected_handler()
529 list_move_tail(&isert_conn->node, &isert_np->pending); in isert_connected_handler()
530 mutex_unlock(&isert_np->mutex); in isert_connected_handler()
533 up(&isert_np->sem); in isert_connected_handler()
542 isert_info("conn %p final kref %s/%d\n", isert_conn, current->comm, in isert_release_kref()
543 current->pid); in isert_release_kref()
551 kref_put(&isert_conn->kref, isert_release_kref); in isert_put_conn()
557 struct isert_np *isert_np = isert_conn->cm_id->context; in isert_handle_unbound_conn()
559 mutex_lock(&isert_np->mutex); in isert_handle_unbound_conn()
560 if (!list_empty(&isert_conn->node)) { in isert_handle_unbound_conn()
565 list_del_init(&isert_conn->node); in isert_handle_unbound_conn()
567 queue_work(isert_release_wq, &isert_conn->release_work); in isert_handle_unbound_conn()
569 mutex_unlock(&isert_np->mutex); in isert_handle_unbound_conn()
573 * isert_conn_terminate() - Initiate connection termination
589 if (isert_conn->state >= ISER_CONN_TERMINATING) in isert_conn_terminate()
593 isert_conn, isert_conn->state); in isert_conn_terminate()
594 isert_conn->state = ISER_CONN_TERMINATING; in isert_conn_terminate()
595 err = rdma_disconnect(isert_conn->cm_id); in isert_conn_terminate()
610 isert_np->cm_id = NULL; in isert_np_cma_handler()
613 isert_np->cm_id = isert_setup_id(isert_np); in isert_np_cma_handler()
614 if (IS_ERR(isert_np->cm_id)) { in isert_np_cma_handler()
616 isert_np, PTR_ERR(isert_np->cm_id)); in isert_np_cma_handler()
617 isert_np->cm_id = NULL; in isert_np_cma_handler()
625 return -1; in isert_np_cma_handler()
632 struct isert_conn *isert_conn = cma_id->qp->qp_context; in isert_disconnected_handler()
634 mutex_lock(&isert_conn->mutex); in isert_disconnected_handler()
635 switch (isert_conn->state) { in isert_disconnected_handler()
640 ib_drain_qp(isert_conn->qp); in isert_disconnected_handler()
645 iscsit_cause_connection_reinstatement(isert_conn->conn, 0); in isert_disconnected_handler()
649 isert_conn, isert_conn->state); in isert_disconnected_handler()
651 mutex_unlock(&isert_conn->mutex); in isert_disconnected_handler()
659 struct isert_conn *isert_conn = cma_id->qp->qp_context; in isert_connect_error()
660 struct isert_np *isert_np = cma_id->context; in isert_connect_error()
662 ib_drain_qp(isert_conn->qp); in isert_connect_error()
664 mutex_lock(&isert_np->mutex); in isert_connect_error()
665 list_del_init(&isert_conn->node); in isert_connect_error()
666 mutex_unlock(&isert_np->mutex); in isert_connect_error()
667 isert_conn->cm_id = NULL; in isert_connect_error()
670 return -1; in isert_connect_error()
676 struct isert_np *isert_np = cma_id->context; in isert_cma_handler()
681 rdma_event_msg(event->event), event->event, in isert_cma_handler()
682 event->status, cma_id, cma_id->context); in isert_cma_handler()
684 if (isert_np->cm_id == cma_id) in isert_cma_handler()
685 return isert_np_cma_handler(cma_id->context, event->event); in isert_cma_handler()
687 switch (event->event) { in isert_cma_handler()
699 ret = isert_disconnected_handler(cma_id, event->event); in isert_cma_handler()
702 isert_conn = cma_id->qp->qp_context; in isert_cma_handler()
703 isert_conn->dev_removed = true; in isert_cma_handler()
704 isert_disconnected_handler(cma_id, event->event); in isert_cma_handler()
705 wait_event_interruptible(isert_conn->rem_wait, in isert_cma_handler()
706 isert_conn->state == ISER_CONN_DOWN); in isert_cma_handler()
709 * return non-zero from the callback to destroy in isert_cma_handler()
715 rdma_reject_msg(cma_id, event->status)); in isert_cma_handler()
722 isert_err("Unhandled RDMA CMA event: %d\n", event->event); in isert_cma_handler()
736 for (rx_wr = isert_conn->rx_wr, i = 0; i < count; i++, rx_wr++) { in isert_post_recvm()
737 rx_desc = &isert_conn->rx_descs[i]; in isert_post_recvm()
739 rx_wr->wr_cqe = &rx_desc->rx_cqe; in isert_post_recvm()
740 rx_wr->sg_list = &rx_desc->rx_sg; in isert_post_recvm()
741 rx_wr->num_sge = 1; in isert_post_recvm()
742 rx_wr->next = rx_wr + 1; in isert_post_recvm()
743 rx_desc->in_use = false; in isert_post_recvm()
745 rx_wr--; in isert_post_recvm()
746 rx_wr->next = NULL; /* mark end of work requests list */ in isert_post_recvm()
748 ret = ib_post_recv(isert_conn->qp, isert_conn->rx_wr, NULL); in isert_post_recvm()
761 if (!rx_desc->in_use) { in isert_post_recv()
763 * if the descriptor is not in-use we already reposted it in isert_post_recv()
769 rx_desc->in_use = false; in isert_post_recv()
770 rx_wr.wr_cqe = &rx_desc->rx_cqe; in isert_post_recv()
771 rx_wr.sg_list = &rx_desc->rx_sg; in isert_post_recv()
775 ret = ib_post_recv(isert_conn->qp, &rx_wr, NULL); in isert_post_recv()
785 struct ib_device *ib_dev = isert_conn->cm_id->device; in isert_login_post_send()
789 ib_dma_sync_single_for_device(ib_dev, tx_desc->dma_addr, in isert_login_post_send()
792 tx_desc->tx_cqe.done = isert_login_send_done; in isert_login_post_send()
795 send_wr.wr_cqe = &tx_desc->tx_cqe; in isert_login_post_send()
796 send_wr.sg_list = tx_desc->tx_sg; in isert_login_post_send()
797 send_wr.num_sge = tx_desc->num_sge; in isert_login_post_send()
801 ret = ib_post_send(isert_conn->qp, &send_wr, NULL); in isert_login_post_send()
813 memset(&tx_desc->iser_header, 0, sizeof(struct iser_ctrl)); in __isert_create_send_desc()
814 tx_desc->iser_header.flags = ISCSI_CTRL; in __isert_create_send_desc()
816 tx_desc->num_sge = 1; in __isert_create_send_desc()
818 if (tx_desc->tx_sg[0].lkey != device->pd->local_dma_lkey) { in __isert_create_send_desc()
819 tx_desc->tx_sg[0].lkey = device->pd->local_dma_lkey; in __isert_create_send_desc()
829 struct isert_device *device = isert_conn->device; in isert_create_send_desc()
830 struct ib_device *ib_dev = device->ib_device; in isert_create_send_desc()
832 ib_dma_sync_single_for_cpu(ib_dev, tx_desc->dma_addr, in isert_create_send_desc()
842 struct isert_device *device = isert_conn->device; in isert_init_tx_hdrs()
843 struct ib_device *ib_dev = device->ib_device; in isert_init_tx_hdrs()
850 return -ENOMEM; in isert_init_tx_hdrs()
853 tx_desc->dma_addr = dma_addr; in isert_init_tx_hdrs()
854 tx_desc->tx_sg[0].addr = tx_desc->dma_addr; in isert_init_tx_hdrs()
855 tx_desc->tx_sg[0].length = ISER_HEADERS_LEN; in isert_init_tx_hdrs()
856 tx_desc->tx_sg[0].lkey = device->pd->local_dma_lkey; in isert_init_tx_hdrs()
859 tx_desc->tx_sg[0].addr, tx_desc->tx_sg[0].length, in isert_init_tx_hdrs()
860 tx_desc->tx_sg[0].lkey); in isert_init_tx_hdrs()
869 struct iser_tx_desc *tx_desc = &isert_cmd->tx_desc; in isert_init_send_wr()
871 tx_desc->tx_cqe.done = isert_send_done; in isert_init_send_wr()
872 send_wr->wr_cqe = &tx_desc->tx_cqe; in isert_init_send_wr()
874 if (isert_conn->snd_w_inv && isert_cmd->inv_rkey) { in isert_init_send_wr()
875 send_wr->opcode = IB_WR_SEND_WITH_INV; in isert_init_send_wr()
876 send_wr->ex.invalidate_rkey = isert_cmd->inv_rkey; in isert_init_send_wr()
878 send_wr->opcode = IB_WR_SEND; in isert_init_send_wr()
881 send_wr->sg_list = &tx_desc->tx_sg[0]; in isert_init_send_wr()
882 send_wr->num_sge = isert_cmd->tx_desc.num_sge; in isert_init_send_wr()
883 send_wr->send_flags = IB_SEND_SIGNALED; in isert_init_send_wr()
894 sge.addr = isert_conn->login_desc->dma_addr + in isert_login_post_recv()
895 isert_get_hdr_offset(isert_conn->login_desc); in isert_login_post_recv()
897 sge.lkey = isert_conn->device->pd->local_dma_lkey; in isert_login_post_recv()
902 isert_conn->login_desc->rx_cqe.done = isert_login_recv_done; in isert_login_post_recv()
905 rx_wr.wr_cqe = &isert_conn->login_desc->rx_cqe; in isert_login_post_recv()
909 ret = ib_post_recv(isert_conn->qp, &rx_wr, NULL); in isert_login_post_recv()
920 struct isert_conn *isert_conn = conn->context; in isert_put_login_tx()
921 struct isert_device *device = isert_conn->device; in isert_put_login_tx()
922 struct ib_device *ib_dev = device->ib_device; in isert_put_login_tx()
923 struct iser_tx_desc *tx_desc = &isert_conn->login_tx_desc; in isert_put_login_tx()
928 memcpy(&tx_desc->iscsi_header, &login->rsp[0], in isert_put_login_tx()
934 struct ib_sge *tx_dsg = &tx_desc->tx_sg[1]; in isert_put_login_tx()
936 ib_dma_sync_single_for_cpu(ib_dev, isert_conn->login_rsp_dma, in isert_put_login_tx()
939 memcpy(isert_conn->login_rsp_buf, login->rsp_buf, length); in isert_put_login_tx()
941 ib_dma_sync_single_for_device(ib_dev, isert_conn->login_rsp_dma, in isert_put_login_tx()
944 tx_dsg->addr = isert_conn->login_rsp_dma; in isert_put_login_tx()
945 tx_dsg->length = length; in isert_put_login_tx()
946 tx_dsg->lkey = isert_conn->device->pd->local_dma_lkey; in isert_put_login_tx()
947 tx_desc->num_sge = 2; in isert_put_login_tx()
949 if (!login->login_failed) { in isert_put_login_tx()
950 if (login->login_complete) { in isert_put_login_tx()
961 mutex_lock(&isert_conn->mutex); in isert_put_login_tx()
962 isert_conn->state = ISER_CONN_FULL_FEATURE; in isert_put_login_tx()
963 mutex_unlock(&isert_conn->mutex); in isert_put_login_tx()
982 struct iser_rx_desc *rx_desc = isert_conn->login_desc; in isert_rx_login_req()
983 int rx_buflen = isert_conn->login_req_len; in isert_rx_login_req()
984 struct iscsit_conn *conn = isert_conn->conn; in isert_rx_login_req()
985 struct iscsi_login *login = conn->conn_login; in isert_rx_login_req()
992 if (login->first_request) { in isert_rx_login_req()
999 login->leading_connection = (!login_req->tsih) ? 1 : 0; in isert_rx_login_req()
1000 login->current_stage = ISCSI_LOGIN_CURRENT_STAGE( in isert_rx_login_req()
1001 login_req->flags); in isert_rx_login_req()
1002 login->version_min = login_req->min_version; in isert_rx_login_req()
1003 login->version_max = login_req->max_version; in isert_rx_login_req()
1004 memcpy(login->isid, login_req->isid, 6); in isert_rx_login_req()
1005 login->cmd_sn = be32_to_cpu(login_req->cmdsn); in isert_rx_login_req()
1006 login->init_task_tag = login_req->itt; in isert_rx_login_req()
1007 login->initial_exp_statsn = be32_to_cpu(login_req->exp_statsn); in isert_rx_login_req()
1008 login->cid = be16_to_cpu(login_req->cid); in isert_rx_login_req()
1009 login->tsih = be16_to_cpu(login_req->tsih); in isert_rx_login_req()
1012 memcpy(&login->req[0], isert_get_iscsi_hdr(rx_desc), ISCSI_HDR_LEN); in isert_rx_login_req()
1018 memcpy(login->req_buf, isert_get_data(rx_desc), size); in isert_rx_login_req()
1020 if (login->first_request) { in isert_rx_login_req()
1021 complete(&isert_conn->login_comp); in isert_rx_login_req()
1024 queue_delayed_work(isert_login_wq, &conn->login_work, 0); in isert_rx_login_req()
1030 struct isert_conn *isert_conn = conn->context; in isert_allocate_cmd()
1032 struct iscsit_cmd *cmd; in isert_allocate_cmd() local
1034 cmd = iscsit_allocate_cmd(conn, TASK_INTERRUPTIBLE); in isert_allocate_cmd()
1035 if (!cmd) { in isert_allocate_cmd()
1039 isert_cmd = iscsit_priv_cmd(cmd); in isert_allocate_cmd()
1040 isert_cmd->conn = isert_conn; in isert_allocate_cmd()
1041 isert_cmd->iscsit_cmd = cmd; in isert_allocate_cmd()
1042 isert_cmd->rx_desc = rx_desc; in isert_allocate_cmd()
1044 return cmd; in isert_allocate_cmd()
1049 struct isert_cmd *isert_cmd, struct iscsit_cmd *cmd, in isert_handle_scsi_cmd() argument
1052 struct iscsit_conn *conn = isert_conn->conn; in isert_handle_scsi_cmd()
1058 rc = iscsit_setup_scsi_cmd(conn, cmd, buf); in isert_handle_scsi_cmd()
1062 imm_data = cmd->immediate_data; in isert_handle_scsi_cmd()
1063 imm_data_len = cmd->first_burst_len; in isert_handle_scsi_cmd()
1064 unsol_data = cmd->unsolicited_data; in isert_handle_scsi_cmd()
1065 data_len = cmd->se_cmd.data_length; in isert_handle_scsi_cmd()
1068 cmd->se_cmd.se_cmd_flags |= SCF_PASSTHROUGH_SG_TO_MEM_NOALLOC; in isert_handle_scsi_cmd()
1069 rc = iscsit_process_scsi_cmd(conn, cmd, hdr); in isert_handle_scsi_cmd()
1082 sg_copy_from_buffer(cmd->se_cmd.t_data_sg, sg_nents, in isert_handle_scsi_cmd()
1087 sg_init_table(&isert_cmd->sg, 1); in isert_handle_scsi_cmd()
1088 cmd->se_cmd.t_data_sg = &isert_cmd->sg; in isert_handle_scsi_cmd()
1089 cmd->se_cmd.t_data_nents = 1; in isert_handle_scsi_cmd()
1090 sg_set_buf(&isert_cmd->sg, isert_get_data(rx_desc), in isert_handle_scsi_cmd()
1096 cmd->write_data_done += imm_data_len; in isert_handle_scsi_cmd()
1098 if (cmd->write_data_done == cmd->se_cmd.data_length) { in isert_handle_scsi_cmd()
1099 spin_lock_bh(&cmd->istate_lock); in isert_handle_scsi_cmd()
1100 cmd->cmd_flags |= ICF_GOT_LAST_DATAOUT; in isert_handle_scsi_cmd()
1101 cmd->i_state = ISTATE_RECEIVED_LAST_DATAOUT; in isert_handle_scsi_cmd()
1102 spin_unlock_bh(&cmd->istate_lock); in isert_handle_scsi_cmd()
1106 rc = iscsit_sequence_cmd(conn, cmd, buf, hdr->cmdsn); in isert_handle_scsi_cmd()
1109 iscsit_set_unsolicited_dataout(cmd); in isert_handle_scsi_cmd()
1111 target_put_sess_cmd(&cmd->se_cmd); in isert_handle_scsi_cmd()
1121 struct iscsit_conn *conn = isert_conn->conn; in isert_handle_iscsi_dataout()
1122 struct iscsit_cmd *cmd = NULL; in isert_handle_iscsi_dataout() local
1124 u32 unsol_data_len = ntoh24(hdr->dlength); in isert_handle_iscsi_dataout()
1127 rc = iscsit_check_dataout_hdr(conn, buf, &cmd); in isert_handle_iscsi_dataout()
1130 else if (!cmd) in isert_handle_iscsi_dataout()
1135 if (!cmd->unsolicited_data) { in isert_handle_iscsi_dataout()
1138 return -1; in isert_handle_iscsi_dataout()
1143 unsol_data_len, cmd->write_data_done, in isert_handle_iscsi_dataout()
1144 cmd->se_cmd.data_length); in isert_handle_iscsi_dataout()
1146 sg_off = cmd->write_data_done / PAGE_SIZE; in isert_handle_iscsi_dataout()
1147 sg_start = &cmd->se_cmd.t_data_sg[sg_off]; in isert_handle_iscsi_dataout()
1149 page_off = cmd->write_data_done % PAGE_SIZE; in isert_handle_iscsi_dataout()
1151 * FIXME: Non page-aligned unsolicited_data out in isert_handle_iscsi_dataout()
1154 isert_err("unexpected non-page aligned data payload\n"); in isert_handle_iscsi_dataout()
1156 return -1; in isert_handle_iscsi_dataout()
1165 rc = iscsit_check_dataout_payload(cmd, hdr, false); in isert_handle_iscsi_dataout()
1170 * multiple data-outs on the same command can arrive - in isert_handle_iscsi_dataout()
1178 struct iscsit_cmd *cmd, struct iser_rx_desc *rx_desc, in isert_handle_nop_out() argument
1181 struct iscsit_conn *conn = isert_conn->conn; in isert_handle_nop_out()
1185 rc = iscsit_setup_nop_out(conn, cmd, hdr); in isert_handle_nop_out()
1192 return iscsit_process_nop_out(conn, cmd, hdr); in isert_handle_nop_out()
1197 struct iscsit_cmd *cmd, struct iser_rx_desc *rx_desc, in isert_handle_text_cmd() argument
1200 struct iscsit_conn *conn = isert_conn->conn; in isert_handle_text_cmd()
1201 u32 payload_length = ntoh24(hdr->dlength); in isert_handle_text_cmd()
1205 rc = iscsit_setup_text_cmd(conn, cmd, hdr); in isert_handle_text_cmd()
1212 return -ENOMEM; in isert_handle_text_cmd()
1214 cmd->text_in_ptr = text_in; in isert_handle_text_cmd()
1216 memcpy(cmd->text_in_ptr, isert_get_data(rx_desc), payload_length); in isert_handle_text_cmd()
1218 return iscsit_process_text_cmd(conn, cmd, hdr); in isert_handle_text_cmd()
1227 struct iscsit_conn *conn = isert_conn->conn; in isert_rx_opcode()
1228 struct iscsit_cmd *cmd; in isert_rx_opcode() local
1230 int ret = -EINVAL; in isert_rx_opcode()
1231 u8 opcode = (hdr->opcode & ISCSI_OPCODE_MASK); in isert_rx_opcode()
1233 if (conn->sess->sess_ops->SessionType && in isert_rx_opcode()
1242 cmd = isert_allocate_cmd(conn, rx_desc); in isert_rx_opcode()
1243 if (!cmd) in isert_rx_opcode()
1246 isert_cmd = iscsit_priv_cmd(cmd); in isert_rx_opcode()
1247 isert_cmd->read_stag = read_stag; in isert_rx_opcode()
1248 isert_cmd->read_va = read_va; in isert_rx_opcode()
1249 isert_cmd->write_stag = write_stag; in isert_rx_opcode()
1250 isert_cmd->write_va = write_va; in isert_rx_opcode()
1251 isert_cmd->inv_rkey = read_stag ? read_stag : write_stag; in isert_rx_opcode()
1253 ret = isert_handle_scsi_cmd(isert_conn, isert_cmd, cmd, in isert_rx_opcode()
1257 cmd = isert_allocate_cmd(conn, rx_desc); in isert_rx_opcode()
1258 if (!cmd) in isert_rx_opcode()
1261 isert_cmd = iscsit_priv_cmd(cmd); in isert_rx_opcode()
1262 ret = isert_handle_nop_out(isert_conn, isert_cmd, cmd, in isert_rx_opcode()
1270 cmd = isert_allocate_cmd(conn, rx_desc); in isert_rx_opcode()
1271 if (!cmd) in isert_rx_opcode()
1274 ret = iscsit_handle_task_mgt_cmd(conn, cmd, in isert_rx_opcode()
1278 cmd = isert_allocate_cmd(conn, rx_desc); in isert_rx_opcode()
1279 if (!cmd) in isert_rx_opcode()
1282 ret = iscsit_handle_logout_cmd(conn, cmd, (unsigned char *)hdr); in isert_rx_opcode()
1285 if (be32_to_cpu(hdr->ttt) != 0xFFFFFFFF) in isert_rx_opcode()
1286 cmd = iscsit_find_cmd_from_itt(conn, hdr->itt); in isert_rx_opcode()
1288 cmd = isert_allocate_cmd(conn, rx_desc); in isert_rx_opcode()
1290 if (!cmd) in isert_rx_opcode()
1293 isert_cmd = iscsit_priv_cmd(cmd); in isert_rx_opcode()
1294 ret = isert_handle_text_cmd(isert_conn, isert_cmd, cmd, in isert_rx_opcode()
1309 if (wc->status != IB_WC_WR_FLUSH_ERR) in isert_print_wc()
1311 ib_wc_status_msg(wc->status), wc->status, in isert_print_wc()
1312 wc->vendor_err); in isert_print_wc()
1315 ib_wc_status_msg(wc->status), wc->status); in isert_print_wc()
1321 struct isert_conn *isert_conn = wc->qp->qp_context; in isert_recv_done()
1322 struct ib_device *ib_dev = isert_conn->cm_id->device; in isert_recv_done()
1323 struct iser_rx_desc *rx_desc = cqe_to_rx_desc(wc->wr_cqe); in isert_recv_done()
1329 if (unlikely(wc->status != IB_WC_SUCCESS)) { in isert_recv_done()
1331 if (wc->status != IB_WC_WR_FLUSH_ERR) in isert_recv_done()
1332 iscsit_cause_connection_reinstatement(isert_conn->conn, 0); in isert_recv_done()
1336 rx_desc->in_use = true; in isert_recv_done()
1338 ib_dma_sync_single_for_cpu(ib_dev, rx_desc->dma_addr, in isert_recv_done()
1342 rx_desc->dma_addr, hdr->opcode, hdr->itt, hdr->flags, in isert_recv_done()
1343 (int)(wc->byte_len - ISER_HEADERS_LEN)); in isert_recv_done()
1345 switch (iser_ctrl->flags & 0xF0) { in isert_recv_done()
1347 if (iser_ctrl->flags & ISER_RSV) { in isert_recv_done()
1348 read_stag = be32_to_cpu(iser_ctrl->read_stag); in isert_recv_done()
1349 read_va = be64_to_cpu(iser_ctrl->read_va); in isert_recv_done()
1353 if (iser_ctrl->flags & ISER_WSV) { in isert_recv_done()
1354 write_stag = be32_to_cpu(iser_ctrl->write_stag); in isert_recv_done()
1355 write_va = be64_to_cpu(iser_ctrl->write_va); in isert_recv_done()
1366 isert_warn("Unknown iSER hdr flags: 0x%02x\n", iser_ctrl->flags); in isert_recv_done()
1373 ib_dma_sync_single_for_device(ib_dev, rx_desc->dma_addr, in isert_recv_done()
1380 struct isert_conn *isert_conn = wc->qp->qp_context; in isert_login_recv_done()
1381 struct ib_device *ib_dev = isert_conn->device->ib_device; in isert_login_recv_done()
1383 if (unlikely(wc->status != IB_WC_SUCCESS)) { in isert_login_recv_done()
1388 ib_dma_sync_single_for_cpu(ib_dev, isert_conn->login_desc->dma_addr, in isert_login_recv_done()
1391 isert_conn->login_req_len = wc->byte_len - ISER_HEADERS_LEN; in isert_login_recv_done()
1393 if (isert_conn->conn) { in isert_login_recv_done()
1394 struct iscsi_login *login = isert_conn->conn->conn_login; in isert_login_recv_done()
1396 if (login && !login->first_request) in isert_login_recv_done()
1400 mutex_lock(&isert_conn->mutex); in isert_login_recv_done()
1401 complete(&isert_conn->login_req_comp); in isert_login_recv_done()
1402 mutex_unlock(&isert_conn->mutex); in isert_login_recv_done()
1404 ib_dma_sync_single_for_device(ib_dev, isert_conn->login_desc->dma_addr, in isert_login_recv_done()
1409 isert_rdma_rw_ctx_destroy(struct isert_cmd *cmd, struct isert_conn *conn) in isert_rdma_rw_ctx_destroy() argument
1411 struct se_cmd *se_cmd = &cmd->iscsit_cmd->se_cmd; in isert_rdma_rw_ctx_destroy()
1412 enum dma_data_direction dir = target_reverse_dma_direction(se_cmd); in isert_rdma_rw_ctx_destroy() local
1414 if (!cmd->rw.nr_ops) in isert_rdma_rw_ctx_destroy()
1418 rdma_rw_ctx_destroy_signature(&cmd->rw, conn->qp, in isert_rdma_rw_ctx_destroy()
1419 conn->cm_id->port_num, se_cmd->t_data_sg, in isert_rdma_rw_ctx_destroy()
1420 se_cmd->t_data_nents, se_cmd->t_prot_sg, in isert_rdma_rw_ctx_destroy()
1421 se_cmd->t_prot_nents, dir); in isert_rdma_rw_ctx_destroy()
1423 rdma_rw_ctx_destroy(&cmd->rw, conn->qp, conn->cm_id->port_num, in isert_rdma_rw_ctx_destroy()
1424 se_cmd->t_data_sg, se_cmd->t_data_nents, dir); in isert_rdma_rw_ctx_destroy()
1427 cmd->rw.nr_ops = 0; in isert_rdma_rw_ctx_destroy()
1433 struct iscsit_cmd *cmd = isert_cmd->iscsit_cmd; in isert_put_cmd() local
1434 struct isert_conn *isert_conn = isert_cmd->conn; in isert_put_cmd()
1435 struct iscsit_conn *conn = isert_conn->conn; in isert_put_cmd()
1438 isert_dbg("Cmd %p\n", isert_cmd); in isert_put_cmd()
1440 switch (cmd->iscsi_opcode) { in isert_put_cmd()
1442 spin_lock_bh(&conn->cmd_lock); in isert_put_cmd()
1443 if (!list_empty(&cmd->i_conn_node)) in isert_put_cmd()
1444 list_del_init(&cmd->i_conn_node); in isert_put_cmd()
1445 spin_unlock_bh(&conn->cmd_lock); in isert_put_cmd()
1447 if (cmd->data_direction == DMA_TO_DEVICE) { in isert_put_cmd()
1448 iscsit_stop_dataout_timer(cmd); in isert_put_cmd()
1456 cmd->se_cmd.t_state == TRANSPORT_WRITE_PENDING) { in isert_put_cmd()
1457 struct se_cmd *se_cmd = &cmd->se_cmd; in isert_put_cmd()
1464 transport_generic_free_cmd(&cmd->se_cmd, 0); in isert_put_cmd()
1467 spin_lock_bh(&conn->cmd_lock); in isert_put_cmd()
1468 if (!list_empty(&cmd->i_conn_node)) in isert_put_cmd()
1469 list_del_init(&cmd->i_conn_node); in isert_put_cmd()
1470 spin_unlock_bh(&conn->cmd_lock); in isert_put_cmd()
1472 transport_generic_free_cmd(&cmd->se_cmd, 0); in isert_put_cmd()
1477 hdr = (struct iscsi_text_rsp *)&isert_cmd->tx_desc.iscsi_header; in isert_put_cmd()
1479 if (hdr->flags & ISCSI_FLAG_TEXT_CONTINUE) in isert_put_cmd()
1482 spin_lock_bh(&conn->cmd_lock); in isert_put_cmd()
1483 if (!list_empty(&cmd->i_conn_node)) in isert_put_cmd()
1484 list_del_init(&cmd->i_conn_node); in isert_put_cmd()
1485 spin_unlock_bh(&conn->cmd_lock); in isert_put_cmd()
1490 * associated cmd->se_cmd needs to be released. in isert_put_cmd()
1492 if (cmd->se_cmd.se_tfo != NULL) { in isert_put_cmd()
1494 cmd->iscsi_opcode); in isert_put_cmd()
1495 transport_generic_free_cmd(&cmd->se_cmd, 0); in isert_put_cmd()
1500 iscsit_release_cmd(cmd); in isert_put_cmd()
1508 if (tx_desc->dma_addr != 0) { in isert_unmap_tx_desc()
1509 isert_dbg("unmap single for tx_desc->dma_addr\n"); in isert_unmap_tx_desc()
1510 ib_dma_unmap_single(ib_dev, tx_desc->dma_addr, in isert_unmap_tx_desc()
1512 tx_desc->dma_addr = 0; in isert_unmap_tx_desc()
1520 if (isert_cmd->pdu_buf_dma != 0) { in isert_completion_put()
1521 isert_dbg("unmap single for isert_cmd->pdu_buf_dma\n"); in isert_completion_put()
1522 ib_dma_unmap_single(ib_dev, isert_cmd->pdu_buf_dma, in isert_completion_put()
1523 isert_cmd->pdu_buf_len, DMA_TO_DEVICE); in isert_completion_put()
1524 isert_cmd->pdu_buf_dma = 0; in isert_completion_put()
1545 u32 block_size = se_cmd->se_dev->dev_attrib.block_size + 8; in isert_check_pi_status()
1549 se_cmd->pi_err = TCM_LOGICAL_BLOCK_GUARD_CHECK_FAILED; in isert_check_pi_status()
1552 se_cmd->pi_err = TCM_LOGICAL_BLOCK_REF_TAG_CHECK_FAILED; in isert_check_pi_status()
1555 se_cmd->pi_err = TCM_LOGICAL_BLOCK_APP_TAG_CHECK_FAILED; in isert_check_pi_status()
1560 se_cmd->sense_info = sec_offset_err + se_cmd->t_task_lba; in isert_check_pi_status()
1565 (unsigned long long)se_cmd->sense_info, in isert_check_pi_status()
1578 struct isert_conn *isert_conn = wc->qp->qp_context; in isert_rdma_write_done()
1579 struct isert_device *device = isert_conn->device; in isert_rdma_write_done()
1580 struct iser_tx_desc *desc = cqe_to_tx_desc(wc->wr_cqe); in isert_rdma_write_done()
1582 struct se_cmd *cmd = &isert_cmd->iscsit_cmd->se_cmd; in isert_rdma_write_done() local
1585 if (unlikely(wc->status != IB_WC_SUCCESS)) { in isert_rdma_write_done()
1587 if (wc->status != IB_WC_WR_FLUSH_ERR) in isert_rdma_write_done()
1588 iscsit_cause_connection_reinstatement(isert_conn->conn, 0); in isert_rdma_write_done()
1589 isert_completion_put(desc, isert_cmd, device->ib_device, true); in isert_rdma_write_done()
1593 isert_dbg("Cmd %p\n", isert_cmd); in isert_rdma_write_done()
1595 ret = isert_check_pi_status(cmd, isert_cmd->rw.reg->mr); in isert_rdma_write_done()
1601 * plus two references to handle queue-full, so re-add in isert_rdma_write_done()
1602 * one here as target-core will have already dropped in isert_rdma_write_done()
1605 kref_get(&cmd->cmd_kref); in isert_rdma_write_done()
1606 transport_generic_request_failure(cmd, cmd->pi_err); in isert_rdma_write_done()
1611 ret = isert_put_response(isert_conn->conn, isert_cmd->iscsit_cmd); in isert_rdma_write_done()
1620 struct isert_conn *isert_conn = wc->qp->qp_context; in isert_rdma_read_done()
1621 struct isert_device *device = isert_conn->device; in isert_rdma_read_done()
1622 struct iser_tx_desc *desc = cqe_to_tx_desc(wc->wr_cqe); in isert_rdma_read_done()
1624 struct iscsit_cmd *cmd = isert_cmd->iscsit_cmd; in isert_rdma_read_done() local
1625 struct se_cmd *se_cmd = &cmd->se_cmd; in isert_rdma_read_done()
1628 if (unlikely(wc->status != IB_WC_SUCCESS)) { in isert_rdma_read_done()
1630 if (wc->status != IB_WC_WR_FLUSH_ERR) in isert_rdma_read_done()
1631 iscsit_cause_connection_reinstatement(isert_conn->conn, 0); in isert_rdma_read_done()
1632 isert_completion_put(desc, isert_cmd, device->ib_device, true); in isert_rdma_read_done()
1636 isert_dbg("Cmd %p\n", isert_cmd); in isert_rdma_read_done()
1638 iscsit_stop_dataout_timer(cmd); in isert_rdma_read_done()
1641 ret = isert_check_pi_status(se_cmd, isert_cmd->rw.reg->mr); in isert_rdma_read_done()
1643 cmd->write_data_done = 0; in isert_rdma_read_done()
1645 isert_dbg("Cmd: %p RDMA_READ comp calling execute_cmd\n", isert_cmd); in isert_rdma_read_done()
1646 spin_lock_bh(&cmd->istate_lock); in isert_rdma_read_done()
1647 cmd->cmd_flags |= ICF_GOT_LAST_DATAOUT; in isert_rdma_read_done()
1648 cmd->i_state = ISTATE_RECEIVED_LAST_DATAOUT; in isert_rdma_read_done()
1649 spin_unlock_bh(&cmd->istate_lock); in isert_rdma_read_done()
1653 * se_cmd->cmd_kref reference after T10-PI error, and handle in isert_rdma_read_done()
1654 * any non-zero ->queue_status() callback error retries. in isert_rdma_read_done()
1657 transport_generic_request_failure(se_cmd, se_cmd->pi_err); in isert_rdma_read_done()
1667 struct isert_conn *isert_conn = isert_cmd->conn; in isert_do_control_comp()
1668 struct ib_device *ib_dev = isert_conn->cm_id->device; in isert_do_control_comp()
1669 struct iscsit_cmd *cmd = isert_cmd->iscsit_cmd; in isert_do_control_comp() local
1671 isert_dbg("Cmd %p i_state %d\n", isert_cmd, cmd->i_state); in isert_do_control_comp()
1673 switch (cmd->i_state) { in isert_do_control_comp()
1675 iscsit_tmr_post_handler(cmd, cmd->conn); in isert_do_control_comp()
1679 cmd->i_state = ISTATE_SENT_STATUS; in isert_do_control_comp()
1680 isert_completion_put(&isert_cmd->tx_desc, isert_cmd, in isert_do_control_comp()
1684 iscsit_logout_post_handler(cmd, cmd->conn); in isert_do_control_comp()
1687 isert_err("Unknown i_state %d\n", cmd->i_state); in isert_do_control_comp()
1696 struct isert_conn *isert_conn = wc->qp->qp_context; in isert_login_send_done()
1697 struct ib_device *ib_dev = isert_conn->cm_id->device; in isert_login_send_done()
1698 struct iser_tx_desc *tx_desc = cqe_to_tx_desc(wc->wr_cqe); in isert_login_send_done()
1700 if (unlikely(wc->status != IB_WC_SUCCESS)) { in isert_login_send_done()
1702 if (wc->status != IB_WC_WR_FLUSH_ERR) in isert_login_send_done()
1703 iscsit_cause_connection_reinstatement(isert_conn->conn, 0); in isert_login_send_done()
1712 struct isert_conn *isert_conn = wc->qp->qp_context; in isert_send_done()
1713 struct ib_device *ib_dev = isert_conn->cm_id->device; in isert_send_done()
1714 struct iser_tx_desc *tx_desc = cqe_to_tx_desc(wc->wr_cqe); in isert_send_done()
1717 if (unlikely(wc->status != IB_WC_SUCCESS)) { in isert_send_done()
1719 if (wc->status != IB_WC_WR_FLUSH_ERR) in isert_send_done()
1720 iscsit_cause_connection_reinstatement(isert_conn->conn, 0); in isert_send_done()
1725 isert_dbg("Cmd %p\n", isert_cmd); in isert_send_done()
1727 switch (isert_cmd->iscsit_cmd->i_state) { in isert_send_done()
1734 INIT_WORK(&isert_cmd->comp_work, isert_do_control_comp); in isert_send_done()
1735 queue_work(isert_comp_wq, &isert_cmd->comp_work); in isert_send_done()
1738 isert_cmd->iscsit_cmd->i_state = ISTATE_SENT_STATUS; in isert_send_done()
1749 ret = isert_post_recv(isert_conn, isert_cmd->rx_desc); in isert_post_response()
1753 ret = ib_post_send(isert_conn->qp, &isert_cmd->tx_desc.send_wr, NULL); in isert_post_response()
1762 isert_put_response(struct iscsit_conn *conn, struct iscsit_cmd *cmd) in isert_put_response() argument
1764 struct isert_cmd *isert_cmd = iscsit_priv_cmd(cmd); in isert_put_response()
1765 struct isert_conn *isert_conn = conn->context; in isert_put_response()
1766 struct ib_send_wr *send_wr = &isert_cmd->tx_desc.send_wr; in isert_put_response()
1768 &isert_cmd->tx_desc.iscsi_header; in isert_put_response()
1770 isert_create_send_desc(isert_conn, isert_cmd, &isert_cmd->tx_desc); in isert_put_response()
1771 iscsit_build_rsp_pdu(cmd, conn, true, hdr); in isert_put_response()
1772 isert_init_tx_hdrs(isert_conn, &isert_cmd->tx_desc); in isert_put_response()
1776 if (cmd->se_cmd.sense_buffer && in isert_put_response()
1777 ((cmd->se_cmd.se_cmd_flags & SCF_TRANSPORT_TASK_SENSE) || in isert_put_response()
1778 (cmd->se_cmd.se_cmd_flags & SCF_EMULATED_TASK_SENSE))) { in isert_put_response()
1779 struct isert_device *device = isert_conn->device; in isert_put_response()
1780 struct ib_device *ib_dev = device->ib_device; in isert_put_response()
1781 struct ib_sge *tx_dsg = &isert_cmd->tx_desc.tx_sg[1]; in isert_put_response()
1784 put_unaligned_be16(cmd->se_cmd.scsi_sense_length, in isert_put_response()
1785 cmd->sense_buffer); in isert_put_response()
1786 cmd->se_cmd.scsi_sense_length += sizeof(__be16); in isert_put_response()
1788 padding = -(cmd->se_cmd.scsi_sense_length) & 3; in isert_put_response()
1789 hton24(hdr->dlength, (u32)cmd->se_cmd.scsi_sense_length); in isert_put_response()
1790 pdu_len = cmd->se_cmd.scsi_sense_length + padding; in isert_put_response()
1792 isert_cmd->pdu_buf_dma = ib_dma_map_single(ib_dev, in isert_put_response()
1793 (void *)cmd->sense_buffer, pdu_len, in isert_put_response()
1795 if (ib_dma_mapping_error(ib_dev, isert_cmd->pdu_buf_dma)) in isert_put_response()
1796 return -ENOMEM; in isert_put_response()
1798 isert_cmd->pdu_buf_len = pdu_len; in isert_put_response()
1799 tx_dsg->addr = isert_cmd->pdu_buf_dma; in isert_put_response()
1800 tx_dsg->length = pdu_len; in isert_put_response()
1801 tx_dsg->lkey = device->pd->local_dma_lkey; in isert_put_response()
1802 isert_cmd->tx_desc.num_sge = 2; in isert_put_response()
1813 isert_aborted_task(struct iscsit_conn *conn, struct iscsit_cmd *cmd) in isert_aborted_task() argument
1815 struct isert_cmd *isert_cmd = iscsit_priv_cmd(cmd); in isert_aborted_task()
1816 struct isert_conn *isert_conn = conn->context; in isert_aborted_task()
1818 spin_lock_bh(&conn->cmd_lock); in isert_aborted_task()
1819 if (!list_empty(&cmd->i_conn_node)) in isert_aborted_task()
1820 list_del_init(&cmd->i_conn_node); in isert_aborted_task()
1821 spin_unlock_bh(&conn->cmd_lock); in isert_aborted_task()
1823 if (cmd->data_direction == DMA_TO_DEVICE) in isert_aborted_task()
1824 iscsit_stop_dataout_timer(cmd); in isert_aborted_task()
1831 struct isert_conn *isert_conn = conn->context; in isert_get_sup_prot_ops()
1832 struct isert_device *device = isert_conn->device; in isert_get_sup_prot_ops()
1834 if (conn->tpg->tpg_attrib.t10_pi) { in isert_get_sup_prot_ops()
1835 if (device->pi_capable) { in isert_get_sup_prot_ops()
1837 isert_conn->pi_support = true; in isert_get_sup_prot_ops()
1843 isert_conn->pi_support = false; in isert_get_sup_prot_ops()
1849 isert_put_nopin(struct iscsit_cmd *cmd, struct iscsit_conn *conn, in isert_put_nopin() argument
1852 struct isert_cmd *isert_cmd = iscsit_priv_cmd(cmd); in isert_put_nopin()
1853 struct isert_conn *isert_conn = conn->context; in isert_put_nopin()
1854 struct ib_send_wr *send_wr = &isert_cmd->tx_desc.send_wr; in isert_put_nopin()
1856 isert_create_send_desc(isert_conn, isert_cmd, &isert_cmd->tx_desc); in isert_put_nopin()
1857 iscsit_build_nopin_rsp(cmd, conn, (struct iscsi_nopin *) in isert_put_nopin()
1858 &isert_cmd->tx_desc.iscsi_header, in isert_put_nopin()
1860 isert_init_tx_hdrs(isert_conn, &isert_cmd->tx_desc); in isert_put_nopin()
1869 isert_put_logout_rsp(struct iscsit_cmd *cmd, struct iscsit_conn *conn) in isert_put_logout_rsp() argument
1871 struct isert_cmd *isert_cmd = iscsit_priv_cmd(cmd); in isert_put_logout_rsp()
1872 struct isert_conn *isert_conn = conn->context; in isert_put_logout_rsp()
1873 struct ib_send_wr *send_wr = &isert_cmd->tx_desc.send_wr; in isert_put_logout_rsp()
1875 isert_create_send_desc(isert_conn, isert_cmd, &isert_cmd->tx_desc); in isert_put_logout_rsp()
1876 iscsit_build_logout_rsp(cmd, conn, (struct iscsi_logout_rsp *) in isert_put_logout_rsp()
1877 &isert_cmd->tx_desc.iscsi_header); in isert_put_logout_rsp()
1878 isert_init_tx_hdrs(isert_conn, &isert_cmd->tx_desc); in isert_put_logout_rsp()
1887 isert_put_tm_rsp(struct iscsit_cmd *cmd, struct iscsit_conn *conn) in isert_put_tm_rsp() argument
1889 struct isert_cmd *isert_cmd = iscsit_priv_cmd(cmd); in isert_put_tm_rsp()
1890 struct isert_conn *isert_conn = conn->context; in isert_put_tm_rsp()
1891 struct ib_send_wr *send_wr = &isert_cmd->tx_desc.send_wr; in isert_put_tm_rsp()
1893 isert_create_send_desc(isert_conn, isert_cmd, &isert_cmd->tx_desc); in isert_put_tm_rsp()
1894 iscsit_build_task_mgt_rsp(cmd, conn, (struct iscsi_tm_rsp *) in isert_put_tm_rsp()
1895 &isert_cmd->tx_desc.iscsi_header); in isert_put_tm_rsp()
1896 isert_init_tx_hdrs(isert_conn, &isert_cmd->tx_desc); in isert_put_tm_rsp()
1905 isert_put_reject(struct iscsit_cmd *cmd, struct iscsit_conn *conn) in isert_put_reject() argument
1907 struct isert_cmd *isert_cmd = iscsit_priv_cmd(cmd); in isert_put_reject()
1908 struct isert_conn *isert_conn = conn->context; in isert_put_reject()
1909 struct ib_send_wr *send_wr = &isert_cmd->tx_desc.send_wr; in isert_put_reject()
1910 struct isert_device *device = isert_conn->device; in isert_put_reject()
1911 struct ib_device *ib_dev = device->ib_device; in isert_put_reject()
1912 struct ib_sge *tx_dsg = &isert_cmd->tx_desc.tx_sg[1]; in isert_put_reject()
1914 (struct iscsi_reject *)&isert_cmd->tx_desc.iscsi_header; in isert_put_reject()
1916 isert_create_send_desc(isert_conn, isert_cmd, &isert_cmd->tx_desc); in isert_put_reject()
1917 iscsit_build_reject(cmd, conn, hdr); in isert_put_reject()
1918 isert_init_tx_hdrs(isert_conn, &isert_cmd->tx_desc); in isert_put_reject()
1920 hton24(hdr->dlength, ISCSI_HDR_LEN); in isert_put_reject()
1921 isert_cmd->pdu_buf_dma = ib_dma_map_single(ib_dev, in isert_put_reject()
1922 (void *)cmd->buf_ptr, ISCSI_HDR_LEN, in isert_put_reject()
1924 if (ib_dma_mapping_error(ib_dev, isert_cmd->pdu_buf_dma)) in isert_put_reject()
1925 return -ENOMEM; in isert_put_reject()
1926 isert_cmd->pdu_buf_len = ISCSI_HDR_LEN; in isert_put_reject()
1927 tx_dsg->addr = isert_cmd->pdu_buf_dma; in isert_put_reject()
1928 tx_dsg->length = ISCSI_HDR_LEN; in isert_put_reject()
1929 tx_dsg->lkey = device->pd->local_dma_lkey; in isert_put_reject()
1930 isert_cmd->tx_desc.num_sge = 2; in isert_put_reject()
1940 isert_put_text_rsp(struct iscsit_cmd *cmd, struct iscsit_conn *conn) in isert_put_text_rsp() argument
1942 struct isert_cmd *isert_cmd = iscsit_priv_cmd(cmd); in isert_put_text_rsp()
1943 struct isert_conn *isert_conn = conn->context; in isert_put_text_rsp()
1944 struct ib_send_wr *send_wr = &isert_cmd->tx_desc.send_wr; in isert_put_text_rsp()
1946 (struct iscsi_text_rsp *)&isert_cmd->tx_desc.iscsi_header; in isert_put_text_rsp()
1950 isert_create_send_desc(isert_conn, isert_cmd, &isert_cmd->tx_desc); in isert_put_text_rsp()
1951 rc = iscsit_build_text_rsp(cmd, conn, hdr, ISCSI_INFINIBAND); in isert_put_text_rsp()
1956 isert_init_tx_hdrs(isert_conn, &isert_cmd->tx_desc); in isert_put_text_rsp()
1959 struct isert_device *device = isert_conn->device; in isert_put_text_rsp()
1960 struct ib_device *ib_dev = device->ib_device; in isert_put_text_rsp()
1961 struct ib_sge *tx_dsg = &isert_cmd->tx_desc.tx_sg[1]; in isert_put_text_rsp()
1962 void *txt_rsp_buf = cmd->buf_ptr; in isert_put_text_rsp()
1964 isert_cmd->pdu_buf_dma = ib_dma_map_single(ib_dev, in isert_put_text_rsp()
1966 if (ib_dma_mapping_error(ib_dev, isert_cmd->pdu_buf_dma)) in isert_put_text_rsp()
1967 return -ENOMEM; in isert_put_text_rsp()
1969 isert_cmd->pdu_buf_len = txt_rsp_len; in isert_put_text_rsp()
1970 tx_dsg->addr = isert_cmd->pdu_buf_dma; in isert_put_text_rsp()
1971 tx_dsg->length = txt_rsp_len; in isert_put_text_rsp()
1972 tx_dsg->lkey = device->pd->local_dma_lkey; in isert_put_text_rsp()
1973 isert_cmd->tx_desc.num_sge = 2; in isert_put_text_rsp()
1985 domain->sig_type = IB_SIG_TYPE_T10_DIF; in isert_set_dif_domain()
1986 domain->sig.dif.bg_type = IB_T10DIF_CRC; in isert_set_dif_domain()
1987 domain->sig.dif.pi_interval = se_cmd->se_dev->dev_attrib.block_size; in isert_set_dif_domain()
1988 domain->sig.dif.ref_tag = se_cmd->reftag_seed; in isert_set_dif_domain()
1994 domain->sig.dif.apptag_check_mask = 0xffff; in isert_set_dif_domain()
1995 domain->sig.dif.app_escape = true; in isert_set_dif_domain()
1996 domain->sig.dif.ref_escape = true; in isert_set_dif_domain()
1997 if (se_cmd->prot_type == TARGET_DIF_TYPE1_PROT || in isert_set_dif_domain()
1998 se_cmd->prot_type == TARGET_DIF_TYPE2_PROT) in isert_set_dif_domain()
1999 domain->sig.dif.ref_remap = true; in isert_set_dif_domain()
2007 switch (se_cmd->prot_op) { in isert_set_sig_attrs()
2010 sig_attrs->mem.sig_type = IB_SIG_TYPE_NONE; in isert_set_sig_attrs()
2011 isert_set_dif_domain(se_cmd, &sig_attrs->wire); in isert_set_sig_attrs()
2015 sig_attrs->wire.sig_type = IB_SIG_TYPE_NONE; in isert_set_sig_attrs()
2016 isert_set_dif_domain(se_cmd, &sig_attrs->mem); in isert_set_sig_attrs()
2020 isert_set_dif_domain(se_cmd, &sig_attrs->wire); in isert_set_sig_attrs()
2021 isert_set_dif_domain(se_cmd, &sig_attrs->mem); in isert_set_sig_attrs()
2024 isert_err("Unsupported PI operation %d\n", se_cmd->prot_op); in isert_set_sig_attrs()
2025 return -EINVAL; in isert_set_sig_attrs()
2028 if (se_cmd->prot_checks & TARGET_DIF_CHECK_GUARD) in isert_set_sig_attrs()
2029 sig_attrs->check_mask |= IB_SIG_CHECK_GUARD; in isert_set_sig_attrs()
2030 if (se_cmd->prot_checks & TARGET_DIF_CHECK_APPTAG) in isert_set_sig_attrs()
2031 sig_attrs->check_mask |= IB_SIG_CHECK_APPTAG; in isert_set_sig_attrs()
2032 if (se_cmd->prot_checks & TARGET_DIF_CHECK_REFTAG) in isert_set_sig_attrs()
2033 sig_attrs->check_mask |= IB_SIG_CHECK_REFTAG; in isert_set_sig_attrs()
2039 isert_rdma_rw_ctx_post(struct isert_cmd *cmd, struct isert_conn *conn, in isert_rdma_rw_ctx_post() argument
2042 struct se_cmd *se_cmd = &cmd->iscsit_cmd->se_cmd; in isert_rdma_rw_ctx_post()
2043 enum dma_data_direction dir = target_reverse_dma_direction(se_cmd); in isert_rdma_rw_ctx_post() local
2044 u8 port_num = conn->cm_id->port_num; in isert_rdma_rw_ctx_post()
2049 if (cmd->ctx_init_done) in isert_rdma_rw_ctx_post()
2052 if (dir == DMA_FROM_DEVICE) { in isert_rdma_rw_ctx_post()
2053 addr = cmd->write_va; in isert_rdma_rw_ctx_post()
2054 rkey = cmd->write_stag; in isert_rdma_rw_ctx_post()
2055 offset = cmd->iscsit_cmd->write_data_done; in isert_rdma_rw_ctx_post()
2057 addr = cmd->read_va; in isert_rdma_rw_ctx_post()
2058 rkey = cmd->read_stag; in isert_rdma_rw_ctx_post()
2070 ret = rdma_rw_ctx_signature_init(&cmd->rw, conn->qp, port_num, in isert_rdma_rw_ctx_post()
2071 se_cmd->t_data_sg, se_cmd->t_data_nents, in isert_rdma_rw_ctx_post()
2072 se_cmd->t_prot_sg, se_cmd->t_prot_nents, in isert_rdma_rw_ctx_post()
2073 &sig_attrs, addr, rkey, dir); in isert_rdma_rw_ctx_post()
2075 ret = rdma_rw_ctx_init(&cmd->rw, conn->qp, port_num, in isert_rdma_rw_ctx_post()
2076 se_cmd->t_data_sg, se_cmd->t_data_nents, in isert_rdma_rw_ctx_post()
2077 offset, addr, rkey, dir); in isert_rdma_rw_ctx_post()
2081 isert_err("Cmd: %p failed to prepare RDMA res\n", cmd); in isert_rdma_rw_ctx_post()
2085 cmd->ctx_init_done = true; in isert_rdma_rw_ctx_post()
2088 ret = rdma_rw_ctx_post(&cmd->rw, conn->qp, port_num, cqe, chain_wr); in isert_rdma_rw_ctx_post()
2090 isert_err("Cmd: %p failed to post RDMA res\n", cmd); in isert_rdma_rw_ctx_post()
2095 isert_put_datain(struct iscsit_conn *conn, struct iscsit_cmd *cmd) in isert_put_datain() argument
2097 struct se_cmd *se_cmd = &cmd->se_cmd; in isert_put_datain()
2098 struct isert_cmd *isert_cmd = iscsit_priv_cmd(cmd); in isert_put_datain()
2099 struct isert_conn *isert_conn = conn->context; in isert_put_datain()
2104 isert_dbg("Cmd: %p RDMA_WRITE data_length: %u\n", in isert_put_datain()
2105 isert_cmd, se_cmd->data_length); in isert_put_datain()
2108 isert_cmd->tx_desc.tx_cqe.done = isert_rdma_write_done; in isert_put_datain()
2109 cqe = &isert_cmd->tx_desc.tx_cqe; in isert_put_datain()
2112 * Build isert_conn->tx_desc for iSCSI response PDU and attach in isert_put_datain()
2115 &isert_cmd->tx_desc); in isert_put_datain()
2116 iscsit_build_rsp_pdu(cmd, conn, true, (struct iscsi_scsi_rsp *) in isert_put_datain()
2117 &isert_cmd->tx_desc.iscsi_header); in isert_put_datain()
2118 isert_init_tx_hdrs(isert_conn, &isert_cmd->tx_desc); in isert_put_datain()
2120 &isert_cmd->tx_desc.send_wr); in isert_put_datain()
2122 rc = isert_post_recv(isert_conn, isert_cmd->rx_desc); in isert_put_datain()
2126 chain_wr = &isert_cmd->tx_desc.send_wr; in isert_put_datain()
2130 isert_dbg("Cmd: %p posted RDMA_WRITE for iSER Data READ rc: %d\n", in isert_put_datain()
2136 isert_get_dataout(struct iscsit_conn *conn, struct iscsit_cmd *cmd, bool recovery) in isert_get_dataout() argument
2138 struct isert_cmd *isert_cmd = iscsit_priv_cmd(cmd); in isert_get_dataout()
2141 isert_dbg("Cmd: %p RDMA_READ data_length: %u write_data_done: %u\n", in isert_get_dataout()
2142 isert_cmd, cmd->se_cmd.data_length, cmd->write_data_done); in isert_get_dataout()
2144 isert_cmd->tx_desc.tx_cqe.done = isert_rdma_read_done; in isert_get_dataout()
2145 ret = isert_rdma_rw_ctx_post(isert_cmd, conn->context, in isert_get_dataout()
2146 &isert_cmd->tx_desc.tx_cqe, NULL); in isert_get_dataout()
2148 isert_dbg("Cmd: %p posted RDMA_READ memory for ISER Data WRITE rc: %d\n", in isert_get_dataout()
2154 isert_immediate_queue(struct iscsit_conn *conn, struct iscsit_cmd *cmd, int state) in isert_immediate_queue() argument
2156 struct isert_cmd *isert_cmd = iscsit_priv_cmd(cmd); in isert_immediate_queue()
2161 spin_lock_bh(&conn->cmd_lock); in isert_immediate_queue()
2162 list_del_init(&cmd->i_conn_node); in isert_immediate_queue()
2163 spin_unlock_bh(&conn->cmd_lock); in isert_immediate_queue()
2167 ret = isert_put_nopin(cmd, conn, false); in isert_immediate_queue()
2171 ret = -EINVAL; in isert_immediate_queue()
2179 isert_response_queue(struct iscsit_conn *conn, struct iscsit_cmd *cmd, int state) in isert_response_queue() argument
2181 struct isert_conn *isert_conn = conn->context; in isert_response_queue()
2186 ret = isert_put_logout_rsp(cmd, conn); in isert_response_queue()
2188 isert_conn->logout_posted = true; in isert_response_queue()
2191 ret = isert_put_nopin(cmd, conn, true); in isert_response_queue()
2194 ret = isert_put_tm_rsp(cmd, conn); in isert_response_queue()
2197 ret = isert_put_reject(cmd, conn); in isert_response_queue()
2200 ret = isert_put_text_rsp(cmd, conn); in isert_response_queue()
2207 ret = isert_put_response(conn, cmd); in isert_response_queue()
2211 ret = -EINVAL; in isert_response_queue()
2221 struct iscsi_np *np = isert_np->np; in isert_setup_id()
2226 sa = (struct sockaddr *)&np->np_sockaddr; in isert_setup_id()
2227 isert_dbg("ksockaddr: %p, sa: %p\n", &np->np_sockaddr, sa); in isert_setup_id()
2236 isert_dbg("id %p context %p\n", id, id->context); in isert_setup_id()
2277 return -ENOMEM; in isert_setup_np()
2279 sema_init(&isert_np->sem, 0); in isert_setup_np()
2280 mutex_init(&isert_np->mutex); in isert_setup_np()
2281 INIT_LIST_HEAD(&isert_np->accepted); in isert_setup_np()
2282 INIT_LIST_HEAD(&isert_np->pending); in isert_setup_np()
2283 isert_np->np = np; in isert_setup_np()
2286 * Setup the np->np_sockaddr from the passed sockaddr setup in isert_setup_np()
2289 memcpy(&np->np_sockaddr, ksockaddr, in isert_setup_np()
2298 isert_np->cm_id = isert_lid; in isert_setup_np()
2299 np->np_context = isert_np; in isert_setup_np()
2312 struct rdma_cm_id *cm_id = isert_conn->cm_id; in isert_rdma_accept()
2318 cp.initiator_depth = isert_conn->initiator_depth; in isert_rdma_accept()
2324 if (!isert_conn->snd_w_inv) in isert_rdma_accept()
2341 struct isert_conn *isert_conn = conn->context; in isert_get_login_rx()
2345 ret = wait_for_completion_interruptible(&isert_conn->login_req_comp); in isert_get_login_rx()
2351 reinit_completion(&isert_conn->login_req_comp); in isert_get_login_rx()
2355 * kick queue_delayed_work(isert_login_wq, &conn->login_work) as in isert_get_login_rx()
2359 if (!login->first_request) in isert_get_login_rx()
2365 ret = wait_for_completion_interruptible(&isert_conn->login_comp); in isert_get_login_rx()
2369 isert_info("processing login->req: %p\n", login->req); in isert_get_login_rx()
2378 struct rdma_cm_id *cm_id = isert_conn->cm_id; in isert_set_conn_info()
2379 struct rdma_route *cm_route = &cm_id->route; in isert_set_conn_info()
2381 conn->login_family = np->np_sockaddr.ss_family; in isert_set_conn_info()
2383 conn->login_sockaddr = cm_route->addr.dst_addr; in isert_set_conn_info()
2384 conn->local_sockaddr = cm_route->addr.src_addr; in isert_set_conn_info()
2390 struct isert_np *isert_np = np->np_context; in isert_accept_np()
2395 ret = down_interruptible(&isert_np->sem); in isert_accept_np()
2397 return -ENODEV; in isert_accept_np()
2399 spin_lock_bh(&np->np_thread_lock); in isert_accept_np()
2400 if (np->np_thread_state >= ISCSI_NP_THREAD_RESET) { in isert_accept_np()
2401 spin_unlock_bh(&np->np_thread_lock); in isert_accept_np()
2403 np->np_thread_state); in isert_accept_np()
2406 * is in state RESET/SHUTDOWN/EXIT - bail in isert_accept_np()
2408 return -ENODEV; in isert_accept_np()
2410 spin_unlock_bh(&np->np_thread_lock); in isert_accept_np()
2412 mutex_lock(&isert_np->mutex); in isert_accept_np()
2413 if (list_empty(&isert_np->pending)) { in isert_accept_np()
2414 mutex_unlock(&isert_np->mutex); in isert_accept_np()
2417 isert_conn = list_first_entry(&isert_np->pending, in isert_accept_np()
2419 list_del_init(&isert_conn->node); in isert_accept_np()
2420 mutex_unlock(&isert_np->mutex); in isert_accept_np()
2422 conn->context = isert_conn; in isert_accept_np()
2423 isert_conn->conn = conn; in isert_accept_np()
2424 isert_conn->state = ISER_CONN_BOUND; in isert_accept_np()
2436 struct isert_np *isert_np = np->np_context; in isert_free_np()
2440 if (isert_np->cm_id) in isert_free_np()
2441 rdma_destroy_id(isert_np->cm_id); in isert_free_np()
2447 * process. So work-around this by cleaning up what ever piled in isert_free_np()
2450 mutex_lock(&isert_np->mutex); in isert_free_np()
2451 if (!list_empty(&isert_np->pending)) { in isert_free_np()
2454 &isert_np->pending, in isert_free_np()
2457 isert_conn, isert_conn->state); in isert_free_np()
2458 list_move_tail(&isert_conn->node, &drop_conn_list); in isert_free_np()
2462 if (!list_empty(&isert_np->accepted)) { in isert_free_np()
2465 &isert_np->accepted, in isert_free_np()
2468 isert_conn, isert_conn->state); in isert_free_np()
2469 list_move_tail(&isert_conn->node, &drop_conn_list); in isert_free_np()
2472 mutex_unlock(&isert_np->mutex); in isert_free_np()
2475 list_del_init(&isert_conn->node); in isert_free_np()
2479 np->np_context = NULL; in isert_free_np()
2491 mutex_lock(&isert_conn->mutex); in isert_release_work()
2492 isert_conn->state = ISER_CONN_DOWN; in isert_release_work()
2493 mutex_unlock(&isert_conn->mutex); in isert_release_work()
2502 struct iscsit_conn *conn = isert_conn->conn; in isert_wait4logout()
2506 if (isert_conn->logout_posted) { in isert_wait4logout()
2508 wait_for_completion_timeout(&conn->conn_logout_comp, in isert_wait4logout()
2518 if (conn->sess) { in isert_wait4cmds()
2519 target_stop_cmd_counter(conn->cmd_cnt); in isert_wait4cmds()
2520 target_wait_for_cmds(conn->cmd_cnt); in isert_wait4cmds()
2525 * isert_put_unsol_pending_cmds() - Drop commands waiting for
2536 struct iscsit_cmd *cmd, *tmp; in isert_put_unsol_pending_cmds() local
2539 spin_lock_bh(&conn->cmd_lock); in isert_put_unsol_pending_cmds()
2540 list_for_each_entry_safe(cmd, tmp, &conn->conn_cmd_list, i_conn_node) { in isert_put_unsol_pending_cmds()
2541 if ((cmd->cmd_flags & ICF_NON_IMMEDIATE_UNSOLICITED_DATA) && in isert_put_unsol_pending_cmds()
2542 (cmd->write_data_done < conn->sess->sess_ops->FirstBurstLength) && in isert_put_unsol_pending_cmds()
2543 (cmd->write_data_done < cmd->se_cmd.data_length)) in isert_put_unsol_pending_cmds()
2544 list_move_tail(&cmd->i_conn_node, &drop_cmd_list); in isert_put_unsol_pending_cmds()
2546 spin_unlock_bh(&conn->cmd_lock); in isert_put_unsol_pending_cmds()
2548 list_for_each_entry_safe(cmd, tmp, &drop_cmd_list, i_conn_node) { in isert_put_unsol_pending_cmds()
2549 list_del_init(&cmd->i_conn_node); in isert_put_unsol_pending_cmds()
2550 if (cmd->i_state != ISTATE_REMOVE) { in isert_put_unsol_pending_cmds()
2551 struct isert_cmd *isert_cmd = iscsit_priv_cmd(cmd); in isert_put_unsol_pending_cmds()
2553 isert_info("conn %p dropping cmd %p\n", conn, cmd); in isert_put_unsol_pending_cmds()
2561 struct isert_conn *isert_conn = conn->context; in isert_wait_conn()
2565 mutex_lock(&isert_conn->mutex); in isert_wait_conn()
2567 mutex_unlock(&isert_conn->mutex); in isert_wait_conn()
2569 ib_drain_qp(isert_conn->qp); in isert_wait_conn()
2574 queue_work(isert_release_wq, &isert_conn->release_work); in isert_wait_conn()
2579 struct isert_conn *isert_conn = conn->context; in isert_free_conn()
2581 ib_drain_qp(isert_conn->qp); in isert_free_conn()
2622 return -ENOMEM; in isert_init()
2640 isert_info("iSER_TARGET[0] - Loaded iser_target_transport\n"); in isert_init()
2649 return -ENOMEM; in isert_init()
2658 isert_info("iSER_TARGET[0] - Released iser_target_transport\n"); in isert_exit()
2662 MODULE_DESCRIPTION("iSER-Target for mainline target infrastructure");
2663 MODULE_AUTHOR("nab@Linux-iSCSI.org");