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()
104 struct isert_device *device = isert_conn->device; in isert_create_qp()
105 struct ib_device *ib_dev = device->ib_device; in isert_create_qp()
109 isert_conn->cq = ib_cq_pool_get(ib_dev, cq_size, -1, IB_POLL_WORKQUEUE); in isert_create_qp()
110 if (IS_ERR(isert_conn->cq)) { in isert_create_qp()
112 ret = PTR_ERR(isert_conn->cq); in isert_create_qp()
115 isert_conn->cq_size = cq_size; in isert_create_qp()
120 attr.send_cq = isert_conn->cq; in isert_create_qp()
121 attr.recv_cq = isert_conn->cq; in isert_create_qp()
124 factor = rdma_rw_mr_factor(device->ib_device, cma_id->port_num, in isert_create_qp()
127 attr.cap.max_send_sge = device->ib_device->attrs.max_send_sge; in isert_create_qp()
131 if (device->pi_capable) in isert_create_qp()
134 ret = rdma_create_qp(cma_id, device->pd, &attr); in isert_create_qp()
137 ib_cq_pool_put(isert_conn->cq, isert_conn->cq_size); in isert_create_qp()
142 return cma_id->qp; in isert_create_qp()
148 struct isert_device *device = isert_conn->device; in isert_alloc_rx_descriptors()
149 struct ib_device *ib_dev = device->ib_device; in isert_alloc_rx_descriptors()
155 isert_conn->rx_descs = kcalloc(ISERT_QP_MAX_RECV_DTOS, in isert_alloc_rx_descriptors()
158 if (!isert_conn->rx_descs) in isert_alloc_rx_descriptors()
159 return -ENOMEM; in isert_alloc_rx_descriptors()
161 rx_desc = isert_conn->rx_descs; in isert_alloc_rx_descriptors()
164 dma_addr = ib_dma_map_single(ib_dev, rx_desc->buf, in isert_alloc_rx_descriptors()
169 rx_desc->dma_addr = dma_addr; in isert_alloc_rx_descriptors()
171 rx_sg = &rx_desc->rx_sg; in isert_alloc_rx_descriptors()
172 rx_sg->addr = rx_desc->dma_addr + isert_get_hdr_offset(rx_desc); in isert_alloc_rx_descriptors()
173 rx_sg->length = ISER_RX_PAYLOAD_SIZE; in isert_alloc_rx_descriptors()
174 rx_sg->lkey = device->pd->local_dma_lkey; in isert_alloc_rx_descriptors()
175 rx_desc->rx_cqe.done = isert_recv_done; in isert_alloc_rx_descriptors()
181 rx_desc = isert_conn->rx_descs; in isert_alloc_rx_descriptors()
183 ib_dma_unmap_single(ib_dev, rx_desc->dma_addr, in isert_alloc_rx_descriptors()
186 kfree(isert_conn->rx_descs); in isert_alloc_rx_descriptors()
187 isert_conn->rx_descs = NULL; in isert_alloc_rx_descriptors()
189 return -ENOMEM; in isert_alloc_rx_descriptors()
195 struct ib_device *ib_dev = isert_conn->device->ib_device; in isert_free_rx_descriptors()
199 if (!isert_conn->rx_descs) in isert_free_rx_descriptors()
202 rx_desc = isert_conn->rx_descs; in isert_free_rx_descriptors()
204 ib_dma_unmap_single(ib_dev, rx_desc->dma_addr, in isert_free_rx_descriptors()
208 kfree(isert_conn->rx_descs); in isert_free_rx_descriptors()
209 isert_conn->rx_descs = NULL; in isert_free_rx_descriptors()
215 struct ib_device *ib_dev = device->ib_device; in isert_create_device_ib_res()
218 isert_dbg("devattr->max_send_sge: %d devattr->max_recv_sge %d\n", in isert_create_device_ib_res()
219 ib_dev->attrs.max_send_sge, ib_dev->attrs.max_recv_sge); in isert_create_device_ib_res()
220 isert_dbg("devattr->max_sge_rd: %d\n", ib_dev->attrs.max_sge_rd); in isert_create_device_ib_res()
222 device->pd = ib_alloc_pd(ib_dev, 0); in isert_create_device_ib_res()
223 if (IS_ERR(device->pd)) { in isert_create_device_ib_res()
224 ret = PTR_ERR(device->pd); in isert_create_device_ib_res()
231 if (ib_dev->attrs.kernel_cap_flags & IBK_INTEGRITY_HANDOVER) in isert_create_device_ib_res()
232 device->pi_capable = true; in isert_create_device_ib_res()
234 device->pi_capable = false; in isert_create_device_ib_res()
244 ib_dealloc_pd(device->pd); in isert_free_device_ib_res()
251 device->refcount--; in isert_device_put()
252 isert_info("device %p refcount %d\n", device, device->refcount); in isert_device_put()
253 if (!device->refcount) { in isert_device_put()
255 list_del(&device->dev_node); in isert_device_put()
269 if (device->ib_device->node_guid == cma_id->device->node_guid) { in isert_device_get()
270 device->refcount++; in isert_device_get()
272 device, device->refcount); in isert_device_get()
281 return ERR_PTR(-ENOMEM); in isert_device_get()
284 INIT_LIST_HEAD(&device->dev_node); in isert_device_get()
286 device->ib_device = cma_id->device; in isert_device_get()
294 device->refcount++; in isert_device_get()
295 list_add_tail(&device->dev_node, &device_list); in isert_device_get()
297 device, device->refcount); in isert_device_get()
306 isert_conn->state = ISER_CONN_INIT; in isert_init_conn()
307 INIT_LIST_HEAD(&isert_conn->node); in isert_init_conn()
308 init_completion(&isert_conn->login_comp); in isert_init_conn()
309 init_completion(&isert_conn->login_req_comp); in isert_init_conn()
310 init_waitqueue_head(&isert_conn->rem_wait); in isert_init_conn()
311 kref_init(&isert_conn->kref); in isert_init_conn()
312 mutex_init(&isert_conn->mutex); in isert_init_conn()
313 INIT_WORK(&isert_conn->release_work, isert_release_work); in isert_init_conn()
319 struct ib_device *ib_dev = isert_conn->device->ib_device; in isert_free_login_buf()
321 ib_dma_unmap_single(ib_dev, isert_conn->login_rsp_dma, in isert_free_login_buf()
323 kfree(isert_conn->login_rsp_buf); in isert_free_login_buf()
325 ib_dma_unmap_single(ib_dev, isert_conn->login_desc->dma_addr, in isert_free_login_buf()
327 kfree(isert_conn->login_desc); in isert_free_login_buf()
336 isert_conn->login_desc = kzalloc(sizeof(*isert_conn->login_desc), in isert_alloc_login_buf()
338 if (!isert_conn->login_desc) in isert_alloc_login_buf()
339 return -ENOMEM; in isert_alloc_login_buf()
341 isert_conn->login_desc->dma_addr = ib_dma_map_single(ib_dev, in isert_alloc_login_buf()
342 isert_conn->login_desc->buf, in isert_alloc_login_buf()
344 ret = ib_dma_mapping_error(ib_dev, isert_conn->login_desc->dma_addr); in isert_alloc_login_buf()
347 isert_conn->login_desc->dma_addr = 0; in isert_alloc_login_buf()
351 isert_conn->login_rsp_buf = kzalloc(ISER_RX_PAYLOAD_SIZE, GFP_KERNEL); in isert_alloc_login_buf()
352 if (!isert_conn->login_rsp_buf) { in isert_alloc_login_buf()
353 ret = -ENOMEM; in isert_alloc_login_buf()
357 isert_conn->login_rsp_dma = ib_dma_map_single(ib_dev, in isert_alloc_login_buf()
358 isert_conn->login_rsp_buf, in isert_alloc_login_buf()
360 ret = ib_dma_mapping_error(ib_dev, isert_conn->login_rsp_dma); in isert_alloc_login_buf()
363 isert_conn->login_rsp_dma = 0; in isert_alloc_login_buf()
370 kfree(isert_conn->login_rsp_buf); in isert_alloc_login_buf()
372 ib_dma_unmap_single(ib_dev, isert_conn->login_desc->dma_addr, in isert_alloc_login_buf()
375 kfree(isert_conn->login_desc); in isert_alloc_login_buf()
383 struct ib_device_attr *attr = &isert_conn->device->ib_device->attrs; in isert_set_nego_params()
386 isert_conn->initiator_depth = min_t(u8, param->initiator_depth, in isert_set_nego_params()
387 attr->max_qp_init_rd_atom); in isert_set_nego_params()
388 isert_dbg("Using initiator_depth: %u\n", isert_conn->initiator_depth); in isert_set_nego_params()
390 if (param->private_data) { in isert_set_nego_params()
391 u8 flags = *(u8 *)param->private_data; in isert_set_nego_params()
397 isert_conn->snd_w_inv = !(flags & ISER_SEND_W_INV_NOT_SUP) && in isert_set_nego_params()
398 (attr->device_cap_flags & in isert_set_nego_params()
400 if (isert_conn->snd_w_inv) in isert_set_nego_params()
408 ib_destroy_qp(isert_conn->qp); in isert_destroy_qp()
409 ib_cq_pool_put(isert_conn->cq, isert_conn->cq_size); in isert_destroy_qp()
415 struct isert_np *isert_np = cma_id->context; in isert_connect_request()
416 struct iscsi_np *np = isert_np->np; in isert_connect_request()
421 spin_lock_bh(&np->np_thread_lock); in isert_connect_request()
422 if (!np->enabled) { in isert_connect_request()
423 spin_unlock_bh(&np->np_thread_lock); in isert_connect_request()
427 spin_unlock_bh(&np->np_thread_lock); in isert_connect_request()
430 cma_id, cma_id->context); in isert_connect_request()
434 return -ENOMEM; in isert_connect_request()
437 isert_conn->cm_id = cma_id; in isert_connect_request()
444 isert_conn->device = device; in isert_connect_request()
446 ret = isert_alloc_login_buf(isert_conn, cma_id->device); in isert_connect_request()
450 isert_set_nego_params(isert_conn, &event->param.conn); in isert_connect_request()
452 isert_conn->qp = isert_create_qp(isert_conn, cma_id); in isert_connect_request()
453 if (IS_ERR(isert_conn->qp)) { in isert_connect_request()
454 ret = PTR_ERR(isert_conn->qp); in isert_connect_request()
466 mutex_lock(&isert_np->mutex); in isert_connect_request()
467 list_add_tail(&isert_conn->node, &isert_np->accepted); in isert_connect_request()
468 mutex_unlock(&isert_np->mutex); in isert_connect_request()
487 struct isert_device *device = isert_conn->device; in isert_connect_release()
494 if (isert_conn->cm_id && in isert_connect_release()
495 !isert_conn->dev_removed) in isert_connect_release()
496 rdma_destroy_id(isert_conn->cm_id); in isert_connect_release()
498 if (isert_conn->qp) in isert_connect_release()
501 if (isert_conn->login_desc) in isert_connect_release()
506 if (isert_conn->dev_removed) in isert_connect_release()
507 wake_up_interruptible(&isert_conn->rem_wait); in isert_connect_release()
515 struct isert_conn *isert_conn = cma_id->qp->qp_context; in isert_connected_handler()
516 struct isert_np *isert_np = cma_id->context; in isert_connected_handler()
520 mutex_lock(&isert_conn->mutex); in isert_connected_handler()
521 isert_conn->state = ISER_CONN_UP; in isert_connected_handler()
522 kref_get(&isert_conn->kref); in isert_connected_handler()
523 mutex_unlock(&isert_conn->mutex); in isert_connected_handler()
525 mutex_lock(&isert_np->mutex); in isert_connected_handler()
526 list_move_tail(&isert_conn->node, &isert_np->pending); in isert_connected_handler()
527 mutex_unlock(&isert_np->mutex); in isert_connected_handler()
530 up(&isert_np->sem); in isert_connected_handler()
539 isert_info("conn %p final kref %s/%d\n", isert_conn, current->comm, in isert_release_kref()
540 current->pid); in isert_release_kref()
548 kref_put(&isert_conn->kref, isert_release_kref); in isert_put_conn()
554 struct isert_np *isert_np = isert_conn->cm_id->context; in isert_handle_unbound_conn()
556 mutex_lock(&isert_np->mutex); in isert_handle_unbound_conn()
557 if (!list_empty(&isert_conn->node)) { in isert_handle_unbound_conn()
562 list_del_init(&isert_conn->node); in isert_handle_unbound_conn()
564 queue_work(isert_release_wq, &isert_conn->release_work); in isert_handle_unbound_conn()
566 mutex_unlock(&isert_np->mutex); in isert_handle_unbound_conn()
570 * isert_conn_terminate() - Initiate connection termination
586 if (isert_conn->state >= ISER_CONN_TERMINATING) in isert_conn_terminate()
590 isert_conn, isert_conn->state); in isert_conn_terminate()
591 isert_conn->state = ISER_CONN_TERMINATING; in isert_conn_terminate()
592 err = rdma_disconnect(isert_conn->cm_id); in isert_conn_terminate()
607 isert_np->cm_id = NULL; in isert_np_cma_handler()
610 isert_np->cm_id = isert_setup_id(isert_np); in isert_np_cma_handler()
611 if (IS_ERR(isert_np->cm_id)) { in isert_np_cma_handler()
613 isert_np, PTR_ERR(isert_np->cm_id)); in isert_np_cma_handler()
614 isert_np->cm_id = NULL; in isert_np_cma_handler()
622 return -1; in isert_np_cma_handler()
629 struct isert_conn *isert_conn = cma_id->qp->qp_context; in isert_disconnected_handler()
631 mutex_lock(&isert_conn->mutex); in isert_disconnected_handler()
632 switch (isert_conn->state) { in isert_disconnected_handler()
637 ib_drain_qp(isert_conn->qp); in isert_disconnected_handler()
642 iscsit_cause_connection_reinstatement(isert_conn->conn, 0); in isert_disconnected_handler()
646 isert_conn, isert_conn->state); in isert_disconnected_handler()
648 mutex_unlock(&isert_conn->mutex); in isert_disconnected_handler()
656 struct isert_conn *isert_conn = cma_id->qp->qp_context; in isert_connect_error()
657 struct isert_np *isert_np = cma_id->context; in isert_connect_error()
659 ib_drain_qp(isert_conn->qp); in isert_connect_error()
661 mutex_lock(&isert_np->mutex); in isert_connect_error()
662 list_del_init(&isert_conn->node); in isert_connect_error()
663 mutex_unlock(&isert_np->mutex); in isert_connect_error()
664 isert_conn->cm_id = NULL; in isert_connect_error()
667 return -1; in isert_connect_error()
673 struct isert_np *isert_np = cma_id->context; in isert_cma_handler()
678 rdma_event_msg(event->event), event->event, in isert_cma_handler()
679 event->status, cma_id, cma_id->context); in isert_cma_handler()
681 if (isert_np->cm_id == cma_id) in isert_cma_handler()
682 return isert_np_cma_handler(cma_id->context, event->event); in isert_cma_handler()
684 switch (event->event) { in isert_cma_handler()
696 ret = isert_disconnected_handler(cma_id, event->event); in isert_cma_handler()
699 isert_conn = cma_id->qp->qp_context; in isert_cma_handler()
700 isert_conn->dev_removed = true; in isert_cma_handler()
701 isert_disconnected_handler(cma_id, event->event); in isert_cma_handler()
702 wait_event_interruptible(isert_conn->rem_wait, in isert_cma_handler()
703 isert_conn->state == ISER_CONN_DOWN); in isert_cma_handler()
706 * return non-zero from the callback to destroy in isert_cma_handler()
712 rdma_reject_msg(cma_id, event->status)); in isert_cma_handler()
719 isert_err("Unhandled RDMA CMA event: %d\n", event->event); in isert_cma_handler()
733 for (rx_wr = isert_conn->rx_wr, i = 0; i < count; i++, rx_wr++) { in isert_post_recvm()
734 rx_desc = &isert_conn->rx_descs[i]; in isert_post_recvm()
736 rx_wr->wr_cqe = &rx_desc->rx_cqe; in isert_post_recvm()
737 rx_wr->sg_list = &rx_desc->rx_sg; in isert_post_recvm()
738 rx_wr->num_sge = 1; in isert_post_recvm()
739 rx_wr->next = rx_wr + 1; in isert_post_recvm()
740 rx_desc->in_use = false; in isert_post_recvm()
742 rx_wr--; in isert_post_recvm()
743 rx_wr->next = NULL; /* mark end of work requests list */ in isert_post_recvm()
745 ret = ib_post_recv(isert_conn->qp, isert_conn->rx_wr, NULL); in isert_post_recvm()
758 if (!rx_desc->in_use) { in isert_post_recv()
760 * if the descriptor is not in-use we already reposted it in isert_post_recv()
766 rx_desc->in_use = false; in isert_post_recv()
767 rx_wr.wr_cqe = &rx_desc->rx_cqe; in isert_post_recv()
768 rx_wr.sg_list = &rx_desc->rx_sg; in isert_post_recv()
772 ret = ib_post_recv(isert_conn->qp, &rx_wr, NULL); in isert_post_recv()
782 struct ib_device *ib_dev = isert_conn->cm_id->device; in isert_login_post_send()
786 ib_dma_sync_single_for_device(ib_dev, tx_desc->dma_addr, in isert_login_post_send()
789 tx_desc->tx_cqe.done = isert_login_send_done; in isert_login_post_send()
792 send_wr.wr_cqe = &tx_desc->tx_cqe; in isert_login_post_send()
793 send_wr.sg_list = tx_desc->tx_sg; in isert_login_post_send()
794 send_wr.num_sge = tx_desc->num_sge; in isert_login_post_send()
798 ret = ib_post_send(isert_conn->qp, &send_wr, NULL); in isert_login_post_send()
810 memset(&tx_desc->iser_header, 0, sizeof(struct iser_ctrl)); in __isert_create_send_desc()
811 tx_desc->iser_header.flags = ISCSI_CTRL; in __isert_create_send_desc()
813 tx_desc->num_sge = 1; in __isert_create_send_desc()
815 if (tx_desc->tx_sg[0].lkey != device->pd->local_dma_lkey) { in __isert_create_send_desc()
816 tx_desc->tx_sg[0].lkey = device->pd->local_dma_lkey; in __isert_create_send_desc()
826 struct isert_device *device = isert_conn->device; in isert_create_send_desc()
827 struct ib_device *ib_dev = device->ib_device; in isert_create_send_desc()
829 ib_dma_sync_single_for_cpu(ib_dev, tx_desc->dma_addr, in isert_create_send_desc()
839 struct isert_device *device = isert_conn->device; in isert_init_tx_hdrs()
840 struct ib_device *ib_dev = device->ib_device; in isert_init_tx_hdrs()
847 return -ENOMEM; in isert_init_tx_hdrs()
850 tx_desc->dma_addr = dma_addr; in isert_init_tx_hdrs()
851 tx_desc->tx_sg[0].addr = tx_desc->dma_addr; in isert_init_tx_hdrs()
852 tx_desc->tx_sg[0].length = ISER_HEADERS_LEN; in isert_init_tx_hdrs()
853 tx_desc->tx_sg[0].lkey = device->pd->local_dma_lkey; in isert_init_tx_hdrs()
856 tx_desc->tx_sg[0].addr, tx_desc->tx_sg[0].length, in isert_init_tx_hdrs()
857 tx_desc->tx_sg[0].lkey); in isert_init_tx_hdrs()
866 struct iser_tx_desc *tx_desc = &isert_cmd->tx_desc; in isert_init_send_wr()
868 tx_desc->tx_cqe.done = isert_send_done; in isert_init_send_wr()
869 send_wr->wr_cqe = &tx_desc->tx_cqe; in isert_init_send_wr()
871 if (isert_conn->snd_w_inv && isert_cmd->inv_rkey) { in isert_init_send_wr()
872 send_wr->opcode = IB_WR_SEND_WITH_INV; in isert_init_send_wr()
873 send_wr->ex.invalidate_rkey = isert_cmd->inv_rkey; in isert_init_send_wr()
875 send_wr->opcode = IB_WR_SEND; in isert_init_send_wr()
878 send_wr->sg_list = &tx_desc->tx_sg[0]; in isert_init_send_wr()
879 send_wr->num_sge = isert_cmd->tx_desc.num_sge; in isert_init_send_wr()
880 send_wr->send_flags = IB_SEND_SIGNALED; in isert_init_send_wr()
891 sge.addr = isert_conn->login_desc->dma_addr + in isert_login_post_recv()
892 isert_get_hdr_offset(isert_conn->login_desc); in isert_login_post_recv()
894 sge.lkey = isert_conn->device->pd->local_dma_lkey; in isert_login_post_recv()
899 isert_conn->login_desc->rx_cqe.done = isert_login_recv_done; in isert_login_post_recv()
902 rx_wr.wr_cqe = &isert_conn->login_desc->rx_cqe; in isert_login_post_recv()
906 ret = ib_post_recv(isert_conn->qp, &rx_wr, NULL); in isert_login_post_recv()
917 struct isert_conn *isert_conn = conn->context; in isert_put_login_tx()
918 struct isert_device *device = isert_conn->device; in isert_put_login_tx()
919 struct ib_device *ib_dev = device->ib_device; in isert_put_login_tx()
920 struct iser_tx_desc *tx_desc = &isert_conn->login_tx_desc; in isert_put_login_tx()
925 memcpy(&tx_desc->iscsi_header, &login->rsp[0], in isert_put_login_tx()
931 struct ib_sge *tx_dsg = &tx_desc->tx_sg[1]; in isert_put_login_tx()
933 ib_dma_sync_single_for_cpu(ib_dev, isert_conn->login_rsp_dma, in isert_put_login_tx()
936 memcpy(isert_conn->login_rsp_buf, login->rsp_buf, length); in isert_put_login_tx()
938 ib_dma_sync_single_for_device(ib_dev, isert_conn->login_rsp_dma, in isert_put_login_tx()
941 tx_dsg->addr = isert_conn->login_rsp_dma; in isert_put_login_tx()
942 tx_dsg->length = length; in isert_put_login_tx()
943 tx_dsg->lkey = isert_conn->device->pd->local_dma_lkey; in isert_put_login_tx()
944 tx_desc->num_sge = 2; in isert_put_login_tx()
946 if (!login->login_failed) { in isert_put_login_tx()
947 if (login->login_complete) { in isert_put_login_tx()
958 mutex_lock(&isert_conn->mutex); in isert_put_login_tx()
959 isert_conn->state = ISER_CONN_FULL_FEATURE; in isert_put_login_tx()
960 mutex_unlock(&isert_conn->mutex); in isert_put_login_tx()
979 struct iser_rx_desc *rx_desc = isert_conn->login_desc; in isert_rx_login_req()
980 int rx_buflen = isert_conn->login_req_len; in isert_rx_login_req()
981 struct iscsit_conn *conn = isert_conn->conn; in isert_rx_login_req()
982 struct iscsi_login *login = conn->conn_login; in isert_rx_login_req()
989 if (login->first_request) { in isert_rx_login_req()
996 login->leading_connection = (!login_req->tsih) ? 1 : 0; in isert_rx_login_req()
997 login->current_stage = ISCSI_LOGIN_CURRENT_STAGE( in isert_rx_login_req()
998 login_req->flags); in isert_rx_login_req()
999 login->version_min = login_req->min_version; in isert_rx_login_req()
1000 login->version_max = login_req->max_version; in isert_rx_login_req()
1001 memcpy(login->isid, login_req->isid, 6); in isert_rx_login_req()
1002 login->cmd_sn = be32_to_cpu(login_req->cmdsn); in isert_rx_login_req()
1003 login->init_task_tag = login_req->itt; in isert_rx_login_req()
1004 login->initial_exp_statsn = be32_to_cpu(login_req->exp_statsn); in isert_rx_login_req()
1005 login->cid = be16_to_cpu(login_req->cid); in isert_rx_login_req()
1006 login->tsih = be16_to_cpu(login_req->tsih); in isert_rx_login_req()
1009 memcpy(&login->req[0], isert_get_iscsi_hdr(rx_desc), ISCSI_HDR_LEN); in isert_rx_login_req()
1015 memcpy(login->req_buf, isert_get_data(rx_desc), size); in isert_rx_login_req()
1017 if (login->first_request) { in isert_rx_login_req()
1018 complete(&isert_conn->login_comp); in isert_rx_login_req()
1021 queue_delayed_work(isert_login_wq, &conn->login_work, 0); in isert_rx_login_req()
1027 struct isert_conn *isert_conn = conn->context; in isert_allocate_cmd()
1029 struct iscsit_cmd *cmd; in isert_allocate_cmd() local
1031 cmd = iscsit_allocate_cmd(conn, TASK_INTERRUPTIBLE); in isert_allocate_cmd()
1032 if (!cmd) { in isert_allocate_cmd()
1036 isert_cmd = iscsit_priv_cmd(cmd); in isert_allocate_cmd()
1037 isert_cmd->conn = isert_conn; in isert_allocate_cmd()
1038 isert_cmd->iscsit_cmd = cmd; in isert_allocate_cmd()
1039 isert_cmd->rx_desc = rx_desc; in isert_allocate_cmd()
1041 return cmd; in isert_allocate_cmd()
1046 struct isert_cmd *isert_cmd, struct iscsit_cmd *cmd, in isert_handle_scsi_cmd() argument
1049 struct iscsit_conn *conn = isert_conn->conn; in isert_handle_scsi_cmd()
1055 rc = iscsit_setup_scsi_cmd(conn, cmd, buf); in isert_handle_scsi_cmd()
1059 imm_data = cmd->immediate_data; in isert_handle_scsi_cmd()
1060 imm_data_len = cmd->first_burst_len; in isert_handle_scsi_cmd()
1061 unsol_data = cmd->unsolicited_data; in isert_handle_scsi_cmd()
1062 data_len = cmd->se_cmd.data_length; in isert_handle_scsi_cmd()
1065 cmd->se_cmd.se_cmd_flags |= SCF_PASSTHROUGH_SG_TO_MEM_NOALLOC; in isert_handle_scsi_cmd()
1066 rc = iscsit_process_scsi_cmd(conn, cmd, hdr); in isert_handle_scsi_cmd()
1079 sg_copy_from_buffer(cmd->se_cmd.t_data_sg, sg_nents, in isert_handle_scsi_cmd()
1084 sg_init_table(&isert_cmd->sg, 1); in isert_handle_scsi_cmd()
1085 cmd->se_cmd.t_data_sg = &isert_cmd->sg; in isert_handle_scsi_cmd()
1086 cmd->se_cmd.t_data_nents = 1; in isert_handle_scsi_cmd()
1087 sg_set_buf(&isert_cmd->sg, isert_get_data(rx_desc), in isert_handle_scsi_cmd()
1093 cmd->write_data_done += imm_data_len; in isert_handle_scsi_cmd()
1095 if (cmd->write_data_done == cmd->se_cmd.data_length) { in isert_handle_scsi_cmd()
1096 spin_lock_bh(&cmd->istate_lock); in isert_handle_scsi_cmd()
1097 cmd->cmd_flags |= ICF_GOT_LAST_DATAOUT; in isert_handle_scsi_cmd()
1098 cmd->i_state = ISTATE_RECEIVED_LAST_DATAOUT; in isert_handle_scsi_cmd()
1099 spin_unlock_bh(&cmd->istate_lock); in isert_handle_scsi_cmd()
1103 rc = iscsit_sequence_cmd(conn, cmd, buf, hdr->cmdsn); in isert_handle_scsi_cmd()
1106 iscsit_set_unsolicited_dataout(cmd); in isert_handle_scsi_cmd()
1108 target_put_sess_cmd(&cmd->se_cmd); in isert_handle_scsi_cmd()
1118 struct iscsit_conn *conn = isert_conn->conn; in isert_handle_iscsi_dataout()
1119 struct iscsit_cmd *cmd = NULL; in isert_handle_iscsi_dataout() local
1121 u32 unsol_data_len = ntoh24(hdr->dlength); in isert_handle_iscsi_dataout()
1124 rc = iscsit_check_dataout_hdr(conn, buf, &cmd); in isert_handle_iscsi_dataout()
1127 else if (!cmd) in isert_handle_iscsi_dataout()
1132 if (!cmd->unsolicited_data) { in isert_handle_iscsi_dataout()
1135 return -1; in isert_handle_iscsi_dataout()
1140 unsol_data_len, cmd->write_data_done, in isert_handle_iscsi_dataout()
1141 cmd->se_cmd.data_length); in isert_handle_iscsi_dataout()
1143 sg_off = cmd->write_data_done / PAGE_SIZE; in isert_handle_iscsi_dataout()
1144 sg_start = &cmd->se_cmd.t_data_sg[sg_off]; in isert_handle_iscsi_dataout()
1146 page_off = cmd->write_data_done % PAGE_SIZE; in isert_handle_iscsi_dataout()
1148 * FIXME: Non page-aligned unsolicited_data out in isert_handle_iscsi_dataout()
1151 isert_err("unexpected non-page aligned data payload\n"); in isert_handle_iscsi_dataout()
1153 return -1; in isert_handle_iscsi_dataout()
1162 rc = iscsit_check_dataout_payload(cmd, hdr, false); in isert_handle_iscsi_dataout()
1167 * multiple data-outs on the same command can arrive - in isert_handle_iscsi_dataout()
1175 struct iscsit_cmd *cmd, struct iser_rx_desc *rx_desc, in isert_handle_nop_out() argument
1178 struct iscsit_conn *conn = isert_conn->conn; in isert_handle_nop_out()
1182 rc = iscsit_setup_nop_out(conn, cmd, hdr); in isert_handle_nop_out()
1189 return iscsit_process_nop_out(conn, cmd, hdr); in isert_handle_nop_out()
1194 struct iscsit_cmd *cmd, struct iser_rx_desc *rx_desc, in isert_handle_text_cmd() argument
1197 struct iscsit_conn *conn = isert_conn->conn; in isert_handle_text_cmd()
1198 u32 payload_length = ntoh24(hdr->dlength); in isert_handle_text_cmd()
1202 rc = iscsit_setup_text_cmd(conn, cmd, hdr); in isert_handle_text_cmd()
1209 return -ENOMEM; in isert_handle_text_cmd()
1211 cmd->text_in_ptr = text_in; in isert_handle_text_cmd()
1213 memcpy(cmd->text_in_ptr, isert_get_data(rx_desc), payload_length); in isert_handle_text_cmd()
1215 return iscsit_process_text_cmd(conn, cmd, hdr); in isert_handle_text_cmd()
1224 struct iscsit_conn *conn = isert_conn->conn; in isert_rx_opcode()
1225 struct iscsit_cmd *cmd; in isert_rx_opcode() local
1227 int ret = -EINVAL; in isert_rx_opcode()
1228 u8 opcode = (hdr->opcode & ISCSI_OPCODE_MASK); in isert_rx_opcode()
1230 if (conn->sess->sess_ops->SessionType && in isert_rx_opcode()
1239 cmd = isert_allocate_cmd(conn, rx_desc); in isert_rx_opcode()
1240 if (!cmd) in isert_rx_opcode()
1243 isert_cmd = iscsit_priv_cmd(cmd); in isert_rx_opcode()
1244 isert_cmd->read_stag = read_stag; in isert_rx_opcode()
1245 isert_cmd->read_va = read_va; in isert_rx_opcode()
1246 isert_cmd->write_stag = write_stag; in isert_rx_opcode()
1247 isert_cmd->write_va = write_va; in isert_rx_opcode()
1248 isert_cmd->inv_rkey = read_stag ? read_stag : write_stag; in isert_rx_opcode()
1250 ret = isert_handle_scsi_cmd(isert_conn, isert_cmd, cmd, in isert_rx_opcode()
1254 cmd = isert_allocate_cmd(conn, rx_desc); in isert_rx_opcode()
1255 if (!cmd) in isert_rx_opcode()
1258 isert_cmd = iscsit_priv_cmd(cmd); in isert_rx_opcode()
1259 ret = isert_handle_nop_out(isert_conn, isert_cmd, cmd, in isert_rx_opcode()
1267 cmd = isert_allocate_cmd(conn, rx_desc); in isert_rx_opcode()
1268 if (!cmd) in isert_rx_opcode()
1271 ret = iscsit_handle_task_mgt_cmd(conn, cmd, in isert_rx_opcode()
1275 cmd = isert_allocate_cmd(conn, rx_desc); in isert_rx_opcode()
1276 if (!cmd) in isert_rx_opcode()
1279 ret = iscsit_handle_logout_cmd(conn, cmd, (unsigned char *)hdr); in isert_rx_opcode()
1282 if (be32_to_cpu(hdr->ttt) != 0xFFFFFFFF) in isert_rx_opcode()
1283 cmd = iscsit_find_cmd_from_itt(conn, hdr->itt); in isert_rx_opcode()
1285 cmd = isert_allocate_cmd(conn, rx_desc); in isert_rx_opcode()
1287 if (!cmd) in isert_rx_opcode()
1290 isert_cmd = iscsit_priv_cmd(cmd); in isert_rx_opcode()
1291 ret = isert_handle_text_cmd(isert_conn, isert_cmd, cmd, in isert_rx_opcode()
1306 if (wc->status != IB_WC_WR_FLUSH_ERR) in isert_print_wc()
1308 ib_wc_status_msg(wc->status), wc->status, in isert_print_wc()
1309 wc->vendor_err); in isert_print_wc()
1312 ib_wc_status_msg(wc->status), wc->status); in isert_print_wc()
1318 struct isert_conn *isert_conn = wc->qp->qp_context; in isert_recv_done()
1319 struct ib_device *ib_dev = isert_conn->cm_id->device; in isert_recv_done()
1320 struct iser_rx_desc *rx_desc = cqe_to_rx_desc(wc->wr_cqe); in isert_recv_done()
1326 if (unlikely(wc->status != IB_WC_SUCCESS)) { in isert_recv_done()
1328 if (wc->status != IB_WC_WR_FLUSH_ERR) in isert_recv_done()
1329 iscsit_cause_connection_reinstatement(isert_conn->conn, 0); in isert_recv_done()
1333 rx_desc->in_use = true; in isert_recv_done()
1335 ib_dma_sync_single_for_cpu(ib_dev, rx_desc->dma_addr, in isert_recv_done()
1339 rx_desc->dma_addr, hdr->opcode, hdr->itt, hdr->flags, in isert_recv_done()
1340 (int)(wc->byte_len - ISER_HEADERS_LEN)); in isert_recv_done()
1342 switch (iser_ctrl->flags & 0xF0) { in isert_recv_done()
1344 if (iser_ctrl->flags & ISER_RSV) { in isert_recv_done()
1345 read_stag = be32_to_cpu(iser_ctrl->read_stag); in isert_recv_done()
1346 read_va = be64_to_cpu(iser_ctrl->read_va); in isert_recv_done()
1350 if (iser_ctrl->flags & ISER_WSV) { in isert_recv_done()
1351 write_stag = be32_to_cpu(iser_ctrl->write_stag); in isert_recv_done()
1352 write_va = be64_to_cpu(iser_ctrl->write_va); in isert_recv_done()
1363 isert_warn("Unknown iSER hdr flags: 0x%02x\n", iser_ctrl->flags); in isert_recv_done()
1370 ib_dma_sync_single_for_device(ib_dev, rx_desc->dma_addr, in isert_recv_done()
1377 struct isert_conn *isert_conn = wc->qp->qp_context; in isert_login_recv_done()
1378 struct ib_device *ib_dev = isert_conn->device->ib_device; in isert_login_recv_done()
1380 if (unlikely(wc->status != IB_WC_SUCCESS)) { in isert_login_recv_done()
1385 ib_dma_sync_single_for_cpu(ib_dev, isert_conn->login_desc->dma_addr, in isert_login_recv_done()
1388 isert_conn->login_req_len = wc->byte_len - ISER_HEADERS_LEN; in isert_login_recv_done()
1390 if (isert_conn->conn) { in isert_login_recv_done()
1391 struct iscsi_login *login = isert_conn->conn->conn_login; in isert_login_recv_done()
1393 if (login && !login->first_request) in isert_login_recv_done()
1397 mutex_lock(&isert_conn->mutex); in isert_login_recv_done()
1398 complete(&isert_conn->login_req_comp); in isert_login_recv_done()
1399 mutex_unlock(&isert_conn->mutex); in isert_login_recv_done()
1401 ib_dma_sync_single_for_device(ib_dev, isert_conn->login_desc->dma_addr, in isert_login_recv_done()
1406 isert_rdma_rw_ctx_destroy(struct isert_cmd *cmd, struct isert_conn *conn) in isert_rdma_rw_ctx_destroy() argument
1408 struct se_cmd *se_cmd = &cmd->iscsit_cmd->se_cmd; in isert_rdma_rw_ctx_destroy()
1409 enum dma_data_direction dir = target_reverse_dma_direction(se_cmd); in isert_rdma_rw_ctx_destroy() local
1411 if (!cmd->rw.nr_ops) in isert_rdma_rw_ctx_destroy()
1415 rdma_rw_ctx_destroy_signature(&cmd->rw, conn->qp, in isert_rdma_rw_ctx_destroy()
1416 conn->cm_id->port_num, se_cmd->t_data_sg, in isert_rdma_rw_ctx_destroy()
1417 se_cmd->t_data_nents, se_cmd->t_prot_sg, in isert_rdma_rw_ctx_destroy()
1418 se_cmd->t_prot_nents, dir); in isert_rdma_rw_ctx_destroy()
1420 rdma_rw_ctx_destroy(&cmd->rw, conn->qp, conn->cm_id->port_num, in isert_rdma_rw_ctx_destroy()
1421 se_cmd->t_data_sg, se_cmd->t_data_nents, dir); in isert_rdma_rw_ctx_destroy()
1424 cmd->rw.nr_ops = 0; in isert_rdma_rw_ctx_destroy()
1430 struct iscsit_cmd *cmd = isert_cmd->iscsit_cmd; in isert_put_cmd() local
1431 struct isert_conn *isert_conn = isert_cmd->conn; in isert_put_cmd()
1432 struct iscsit_conn *conn = isert_conn->conn; in isert_put_cmd()
1435 isert_dbg("Cmd %p\n", isert_cmd); in isert_put_cmd()
1437 switch (cmd->iscsi_opcode) { in isert_put_cmd()
1439 spin_lock_bh(&conn->cmd_lock); in isert_put_cmd()
1440 if (!list_empty(&cmd->i_conn_node)) in isert_put_cmd()
1441 list_del_init(&cmd->i_conn_node); in isert_put_cmd()
1442 spin_unlock_bh(&conn->cmd_lock); in isert_put_cmd()
1444 if (cmd->data_direction == DMA_TO_DEVICE) { in isert_put_cmd()
1445 iscsit_stop_dataout_timer(cmd); in isert_put_cmd()
1453 cmd->se_cmd.t_state == TRANSPORT_WRITE_PENDING) { in isert_put_cmd()
1454 struct se_cmd *se_cmd = &cmd->se_cmd; in isert_put_cmd()
1461 transport_generic_free_cmd(&cmd->se_cmd, 0); in isert_put_cmd()
1464 spin_lock_bh(&conn->cmd_lock); in isert_put_cmd()
1465 if (!list_empty(&cmd->i_conn_node)) in isert_put_cmd()
1466 list_del_init(&cmd->i_conn_node); in isert_put_cmd()
1467 spin_unlock_bh(&conn->cmd_lock); in isert_put_cmd()
1469 transport_generic_free_cmd(&cmd->se_cmd, 0); in isert_put_cmd()
1474 hdr = (struct iscsi_text_rsp *)&isert_cmd->tx_desc.iscsi_header; in isert_put_cmd()
1476 if (hdr->flags & ISCSI_FLAG_TEXT_CONTINUE) in isert_put_cmd()
1479 spin_lock_bh(&conn->cmd_lock); in isert_put_cmd()
1480 if (!list_empty(&cmd->i_conn_node)) in isert_put_cmd()
1481 list_del_init(&cmd->i_conn_node); in isert_put_cmd()
1482 spin_unlock_bh(&conn->cmd_lock); in isert_put_cmd()
1487 * associated cmd->se_cmd needs to be released. in isert_put_cmd()
1489 if (cmd->se_cmd.se_tfo != NULL) { in isert_put_cmd()
1491 cmd->iscsi_opcode); in isert_put_cmd()
1492 transport_generic_free_cmd(&cmd->se_cmd, 0); in isert_put_cmd()
1497 iscsit_release_cmd(cmd); in isert_put_cmd()
1505 if (tx_desc->dma_addr != 0) { in isert_unmap_tx_desc()
1506 isert_dbg("unmap single for tx_desc->dma_addr\n"); in isert_unmap_tx_desc()
1507 ib_dma_unmap_single(ib_dev, tx_desc->dma_addr, in isert_unmap_tx_desc()
1509 tx_desc->dma_addr = 0; in isert_unmap_tx_desc()
1517 if (isert_cmd->pdu_buf_dma != 0) { in isert_completion_put()
1518 isert_dbg("unmap single for isert_cmd->pdu_buf_dma\n"); in isert_completion_put()
1519 ib_dma_unmap_single(ib_dev, isert_cmd->pdu_buf_dma, in isert_completion_put()
1520 isert_cmd->pdu_buf_len, DMA_TO_DEVICE); in isert_completion_put()
1521 isert_cmd->pdu_buf_dma = 0; in isert_completion_put()
1542 u32 block_size = se_cmd->se_dev->dev_attrib.block_size + 8; in isert_check_pi_status()
1546 se_cmd->pi_err = TCM_LOGICAL_BLOCK_GUARD_CHECK_FAILED; in isert_check_pi_status()
1549 se_cmd->pi_err = TCM_LOGICAL_BLOCK_REF_TAG_CHECK_FAILED; in isert_check_pi_status()
1552 se_cmd->pi_err = TCM_LOGICAL_BLOCK_APP_TAG_CHECK_FAILED; in isert_check_pi_status()
1557 se_cmd->sense_info = sec_offset_err + se_cmd->t_task_lba; in isert_check_pi_status()
1562 (unsigned long long)se_cmd->sense_info, in isert_check_pi_status()
1575 struct isert_conn *isert_conn = wc->qp->qp_context; in isert_rdma_write_done()
1576 struct isert_device *device = isert_conn->device; in isert_rdma_write_done()
1577 struct iser_tx_desc *desc = cqe_to_tx_desc(wc->wr_cqe); in isert_rdma_write_done()
1579 struct se_cmd *cmd = &isert_cmd->iscsit_cmd->se_cmd; in isert_rdma_write_done() local
1582 if (unlikely(wc->status != IB_WC_SUCCESS)) { in isert_rdma_write_done()
1584 if (wc->status != IB_WC_WR_FLUSH_ERR) in isert_rdma_write_done()
1585 iscsit_cause_connection_reinstatement(isert_conn->conn, 0); in isert_rdma_write_done()
1586 isert_completion_put(desc, isert_cmd, device->ib_device, true); in isert_rdma_write_done()
1590 isert_dbg("Cmd %p\n", isert_cmd); in isert_rdma_write_done()
1592 ret = isert_check_pi_status(cmd, isert_cmd->rw.reg->mr); in isert_rdma_write_done()
1598 * plus two references to handle queue-full, so re-add in isert_rdma_write_done()
1599 * one here as target-core will have already dropped in isert_rdma_write_done()
1602 kref_get(&cmd->cmd_kref); in isert_rdma_write_done()
1603 transport_generic_request_failure(cmd, cmd->pi_err); in isert_rdma_write_done()
1608 ret = isert_put_response(isert_conn->conn, isert_cmd->iscsit_cmd); in isert_rdma_write_done()
1617 struct isert_conn *isert_conn = wc->qp->qp_context; in isert_rdma_read_done()
1618 struct isert_device *device = isert_conn->device; in isert_rdma_read_done()
1619 struct iser_tx_desc *desc = cqe_to_tx_desc(wc->wr_cqe); in isert_rdma_read_done()
1621 struct iscsit_cmd *cmd = isert_cmd->iscsit_cmd; in isert_rdma_read_done() local
1622 struct se_cmd *se_cmd = &cmd->se_cmd; in isert_rdma_read_done()
1625 if (unlikely(wc->status != IB_WC_SUCCESS)) { in isert_rdma_read_done()
1627 if (wc->status != IB_WC_WR_FLUSH_ERR) in isert_rdma_read_done()
1628 iscsit_cause_connection_reinstatement(isert_conn->conn, 0); in isert_rdma_read_done()
1629 isert_completion_put(desc, isert_cmd, device->ib_device, true); in isert_rdma_read_done()
1633 isert_dbg("Cmd %p\n", isert_cmd); in isert_rdma_read_done()
1635 iscsit_stop_dataout_timer(cmd); in isert_rdma_read_done()
1638 ret = isert_check_pi_status(se_cmd, isert_cmd->rw.reg->mr); in isert_rdma_read_done()
1640 cmd->write_data_done = 0; in isert_rdma_read_done()
1642 isert_dbg("Cmd: %p RDMA_READ comp calling execute_cmd\n", isert_cmd); in isert_rdma_read_done()
1643 spin_lock_bh(&cmd->istate_lock); in isert_rdma_read_done()
1644 cmd->cmd_flags |= ICF_GOT_LAST_DATAOUT; in isert_rdma_read_done()
1645 cmd->i_state = ISTATE_RECEIVED_LAST_DATAOUT; in isert_rdma_read_done()
1646 spin_unlock_bh(&cmd->istate_lock); in isert_rdma_read_done()
1650 * se_cmd->cmd_kref reference after T10-PI error, and handle in isert_rdma_read_done()
1651 * any non-zero ->queue_status() callback error retries. in isert_rdma_read_done()
1654 transport_generic_request_failure(se_cmd, se_cmd->pi_err); in isert_rdma_read_done()
1664 struct isert_conn *isert_conn = isert_cmd->conn; in isert_do_control_comp()
1665 struct ib_device *ib_dev = isert_conn->cm_id->device; in isert_do_control_comp()
1666 struct iscsit_cmd *cmd = isert_cmd->iscsit_cmd; in isert_do_control_comp() local
1668 isert_dbg("Cmd %p i_state %d\n", isert_cmd, cmd->i_state); in isert_do_control_comp()
1670 switch (cmd->i_state) { in isert_do_control_comp()
1672 iscsit_tmr_post_handler(cmd, cmd->conn); in isert_do_control_comp()
1676 cmd->i_state = ISTATE_SENT_STATUS; in isert_do_control_comp()
1677 isert_completion_put(&isert_cmd->tx_desc, isert_cmd, in isert_do_control_comp()
1681 iscsit_logout_post_handler(cmd, cmd->conn); in isert_do_control_comp()
1684 isert_err("Unknown i_state %d\n", cmd->i_state); in isert_do_control_comp()
1693 struct isert_conn *isert_conn = wc->qp->qp_context; in isert_login_send_done()
1694 struct ib_device *ib_dev = isert_conn->cm_id->device; in isert_login_send_done()
1695 struct iser_tx_desc *tx_desc = cqe_to_tx_desc(wc->wr_cqe); in isert_login_send_done()
1697 if (unlikely(wc->status != IB_WC_SUCCESS)) { in isert_login_send_done()
1699 if (wc->status != IB_WC_WR_FLUSH_ERR) in isert_login_send_done()
1700 iscsit_cause_connection_reinstatement(isert_conn->conn, 0); in isert_login_send_done()
1709 struct isert_conn *isert_conn = wc->qp->qp_context; in isert_send_done()
1710 struct ib_device *ib_dev = isert_conn->cm_id->device; in isert_send_done()
1711 struct iser_tx_desc *tx_desc = cqe_to_tx_desc(wc->wr_cqe); in isert_send_done()
1714 if (unlikely(wc->status != IB_WC_SUCCESS)) { in isert_send_done()
1716 if (wc->status != IB_WC_WR_FLUSH_ERR) in isert_send_done()
1717 iscsit_cause_connection_reinstatement(isert_conn->conn, 0); in isert_send_done()
1722 isert_dbg("Cmd %p\n", isert_cmd); in isert_send_done()
1724 switch (isert_cmd->iscsit_cmd->i_state) { in isert_send_done()
1731 INIT_WORK(&isert_cmd->comp_work, isert_do_control_comp); in isert_send_done()
1732 queue_work(isert_comp_wq, &isert_cmd->comp_work); in isert_send_done()
1735 isert_cmd->iscsit_cmd->i_state = ISTATE_SENT_STATUS; in isert_send_done()
1746 ret = isert_post_recv(isert_conn, isert_cmd->rx_desc); in isert_post_response()
1750 ret = ib_post_send(isert_conn->qp, &isert_cmd->tx_desc.send_wr, NULL); in isert_post_response()
1759 isert_put_response(struct iscsit_conn *conn, struct iscsit_cmd *cmd) in isert_put_response() argument
1761 struct isert_cmd *isert_cmd = iscsit_priv_cmd(cmd); in isert_put_response()
1762 struct isert_conn *isert_conn = conn->context; in isert_put_response()
1763 struct ib_send_wr *send_wr = &isert_cmd->tx_desc.send_wr; in isert_put_response()
1765 &isert_cmd->tx_desc.iscsi_header; in isert_put_response()
1767 isert_create_send_desc(isert_conn, isert_cmd, &isert_cmd->tx_desc); in isert_put_response()
1768 iscsit_build_rsp_pdu(cmd, conn, true, hdr); in isert_put_response()
1769 isert_init_tx_hdrs(isert_conn, &isert_cmd->tx_desc); in isert_put_response()
1773 if (cmd->se_cmd.sense_buffer && in isert_put_response()
1774 ((cmd->se_cmd.se_cmd_flags & SCF_TRANSPORT_TASK_SENSE) || in isert_put_response()
1775 (cmd->se_cmd.se_cmd_flags & SCF_EMULATED_TASK_SENSE))) { in isert_put_response()
1776 struct isert_device *device = isert_conn->device; in isert_put_response()
1777 struct ib_device *ib_dev = device->ib_device; in isert_put_response()
1778 struct ib_sge *tx_dsg = &isert_cmd->tx_desc.tx_sg[1]; in isert_put_response()
1781 put_unaligned_be16(cmd->se_cmd.scsi_sense_length, in isert_put_response()
1782 cmd->sense_buffer); in isert_put_response()
1783 cmd->se_cmd.scsi_sense_length += sizeof(__be16); in isert_put_response()
1785 padding = -(cmd->se_cmd.scsi_sense_length) & 3; in isert_put_response()
1786 hton24(hdr->dlength, (u32)cmd->se_cmd.scsi_sense_length); in isert_put_response()
1787 pdu_len = cmd->se_cmd.scsi_sense_length + padding; in isert_put_response()
1789 isert_cmd->pdu_buf_dma = ib_dma_map_single(ib_dev, in isert_put_response()
1790 (void *)cmd->sense_buffer, pdu_len, in isert_put_response()
1792 if (ib_dma_mapping_error(ib_dev, isert_cmd->pdu_buf_dma)) in isert_put_response()
1793 return -ENOMEM; in isert_put_response()
1795 isert_cmd->pdu_buf_len = pdu_len; in isert_put_response()
1796 tx_dsg->addr = isert_cmd->pdu_buf_dma; in isert_put_response()
1797 tx_dsg->length = pdu_len; in isert_put_response()
1798 tx_dsg->lkey = device->pd->local_dma_lkey; in isert_put_response()
1799 isert_cmd->tx_desc.num_sge = 2; in isert_put_response()
1810 isert_aborted_task(struct iscsit_conn *conn, struct iscsit_cmd *cmd) in isert_aborted_task() argument
1812 struct isert_cmd *isert_cmd = iscsit_priv_cmd(cmd); in isert_aborted_task()
1813 struct isert_conn *isert_conn = conn->context; in isert_aborted_task()
1815 spin_lock_bh(&conn->cmd_lock); in isert_aborted_task()
1816 if (!list_empty(&cmd->i_conn_node)) in isert_aborted_task()
1817 list_del_init(&cmd->i_conn_node); in isert_aborted_task()
1818 spin_unlock_bh(&conn->cmd_lock); in isert_aborted_task()
1820 if (cmd->data_direction == DMA_TO_DEVICE) in isert_aborted_task()
1821 iscsit_stop_dataout_timer(cmd); in isert_aborted_task()
1828 struct isert_conn *isert_conn = conn->context; in isert_get_sup_prot_ops()
1829 struct isert_device *device = isert_conn->device; in isert_get_sup_prot_ops()
1831 if (conn->tpg->tpg_attrib.t10_pi) { in isert_get_sup_prot_ops()
1832 if (device->pi_capable) { in isert_get_sup_prot_ops()
1834 isert_conn->pi_support = true; in isert_get_sup_prot_ops()
1840 isert_conn->pi_support = false; in isert_get_sup_prot_ops()
1846 isert_put_nopin(struct iscsit_cmd *cmd, struct iscsit_conn *conn, in isert_put_nopin() argument
1849 struct isert_cmd *isert_cmd = iscsit_priv_cmd(cmd); in isert_put_nopin()
1850 struct isert_conn *isert_conn = conn->context; in isert_put_nopin()
1851 struct ib_send_wr *send_wr = &isert_cmd->tx_desc.send_wr; in isert_put_nopin()
1853 isert_create_send_desc(isert_conn, isert_cmd, &isert_cmd->tx_desc); in isert_put_nopin()
1854 iscsit_build_nopin_rsp(cmd, conn, (struct iscsi_nopin *) in isert_put_nopin()
1855 &isert_cmd->tx_desc.iscsi_header, in isert_put_nopin()
1857 isert_init_tx_hdrs(isert_conn, &isert_cmd->tx_desc); in isert_put_nopin()
1866 isert_put_logout_rsp(struct iscsit_cmd *cmd, struct iscsit_conn *conn) in isert_put_logout_rsp() argument
1868 struct isert_cmd *isert_cmd = iscsit_priv_cmd(cmd); in isert_put_logout_rsp()
1869 struct isert_conn *isert_conn = conn->context; in isert_put_logout_rsp()
1870 struct ib_send_wr *send_wr = &isert_cmd->tx_desc.send_wr; in isert_put_logout_rsp()
1872 isert_create_send_desc(isert_conn, isert_cmd, &isert_cmd->tx_desc); in isert_put_logout_rsp()
1873 iscsit_build_logout_rsp(cmd, conn, (struct iscsi_logout_rsp *) in isert_put_logout_rsp()
1874 &isert_cmd->tx_desc.iscsi_header); in isert_put_logout_rsp()
1875 isert_init_tx_hdrs(isert_conn, &isert_cmd->tx_desc); in isert_put_logout_rsp()
1884 isert_put_tm_rsp(struct iscsit_cmd *cmd, struct iscsit_conn *conn) in isert_put_tm_rsp() argument
1886 struct isert_cmd *isert_cmd = iscsit_priv_cmd(cmd); in isert_put_tm_rsp()
1887 struct isert_conn *isert_conn = conn->context; in isert_put_tm_rsp()
1888 struct ib_send_wr *send_wr = &isert_cmd->tx_desc.send_wr; in isert_put_tm_rsp()
1890 isert_create_send_desc(isert_conn, isert_cmd, &isert_cmd->tx_desc); in isert_put_tm_rsp()
1891 iscsit_build_task_mgt_rsp(cmd, conn, (struct iscsi_tm_rsp *) in isert_put_tm_rsp()
1892 &isert_cmd->tx_desc.iscsi_header); in isert_put_tm_rsp()
1893 isert_init_tx_hdrs(isert_conn, &isert_cmd->tx_desc); in isert_put_tm_rsp()
1902 isert_put_reject(struct iscsit_cmd *cmd, struct iscsit_conn *conn) in isert_put_reject() argument
1904 struct isert_cmd *isert_cmd = iscsit_priv_cmd(cmd); in isert_put_reject()
1905 struct isert_conn *isert_conn = conn->context; in isert_put_reject()
1906 struct ib_send_wr *send_wr = &isert_cmd->tx_desc.send_wr; in isert_put_reject()
1907 struct isert_device *device = isert_conn->device; in isert_put_reject()
1908 struct ib_device *ib_dev = device->ib_device; in isert_put_reject()
1909 struct ib_sge *tx_dsg = &isert_cmd->tx_desc.tx_sg[1]; in isert_put_reject()
1911 (struct iscsi_reject *)&isert_cmd->tx_desc.iscsi_header; in isert_put_reject()
1913 isert_create_send_desc(isert_conn, isert_cmd, &isert_cmd->tx_desc); in isert_put_reject()
1914 iscsit_build_reject(cmd, conn, hdr); in isert_put_reject()
1915 isert_init_tx_hdrs(isert_conn, &isert_cmd->tx_desc); in isert_put_reject()
1917 hton24(hdr->dlength, ISCSI_HDR_LEN); in isert_put_reject()
1918 isert_cmd->pdu_buf_dma = ib_dma_map_single(ib_dev, in isert_put_reject()
1919 (void *)cmd->buf_ptr, ISCSI_HDR_LEN, in isert_put_reject()
1921 if (ib_dma_mapping_error(ib_dev, isert_cmd->pdu_buf_dma)) in isert_put_reject()
1922 return -ENOMEM; in isert_put_reject()
1923 isert_cmd->pdu_buf_len = ISCSI_HDR_LEN; in isert_put_reject()
1924 tx_dsg->addr = isert_cmd->pdu_buf_dma; in isert_put_reject()
1925 tx_dsg->length = ISCSI_HDR_LEN; in isert_put_reject()
1926 tx_dsg->lkey = device->pd->local_dma_lkey; in isert_put_reject()
1927 isert_cmd->tx_desc.num_sge = 2; in isert_put_reject()
1937 isert_put_text_rsp(struct iscsit_cmd *cmd, struct iscsit_conn *conn) in isert_put_text_rsp() argument
1939 struct isert_cmd *isert_cmd = iscsit_priv_cmd(cmd); in isert_put_text_rsp()
1940 struct isert_conn *isert_conn = conn->context; in isert_put_text_rsp()
1941 struct ib_send_wr *send_wr = &isert_cmd->tx_desc.send_wr; in isert_put_text_rsp()
1943 (struct iscsi_text_rsp *)&isert_cmd->tx_desc.iscsi_header; in isert_put_text_rsp()
1947 isert_create_send_desc(isert_conn, isert_cmd, &isert_cmd->tx_desc); in isert_put_text_rsp()
1948 rc = iscsit_build_text_rsp(cmd, conn, hdr, ISCSI_INFINIBAND); in isert_put_text_rsp()
1953 isert_init_tx_hdrs(isert_conn, &isert_cmd->tx_desc); in isert_put_text_rsp()
1956 struct isert_device *device = isert_conn->device; in isert_put_text_rsp()
1957 struct ib_device *ib_dev = device->ib_device; in isert_put_text_rsp()
1958 struct ib_sge *tx_dsg = &isert_cmd->tx_desc.tx_sg[1]; in isert_put_text_rsp()
1959 void *txt_rsp_buf = cmd->buf_ptr; in isert_put_text_rsp()
1961 isert_cmd->pdu_buf_dma = ib_dma_map_single(ib_dev, in isert_put_text_rsp()
1963 if (ib_dma_mapping_error(ib_dev, isert_cmd->pdu_buf_dma)) in isert_put_text_rsp()
1964 return -ENOMEM; in isert_put_text_rsp()
1966 isert_cmd->pdu_buf_len = txt_rsp_len; in isert_put_text_rsp()
1967 tx_dsg->addr = isert_cmd->pdu_buf_dma; in isert_put_text_rsp()
1968 tx_dsg->length = txt_rsp_len; in isert_put_text_rsp()
1969 tx_dsg->lkey = device->pd->local_dma_lkey; in isert_put_text_rsp()
1970 isert_cmd->tx_desc.num_sge = 2; in isert_put_text_rsp()
1982 domain->sig_type = IB_SIG_TYPE_T10_DIF; in isert_set_dif_domain()
1983 domain->sig.dif.bg_type = IB_T10DIF_CRC; in isert_set_dif_domain()
1984 domain->sig.dif.pi_interval = se_cmd->se_dev->dev_attrib.block_size; in isert_set_dif_domain()
1985 domain->sig.dif.ref_tag = se_cmd->reftag_seed; in isert_set_dif_domain()
1991 domain->sig.dif.apptag_check_mask = 0xffff; in isert_set_dif_domain()
1992 domain->sig.dif.app_escape = true; in isert_set_dif_domain()
1993 domain->sig.dif.ref_escape = true; in isert_set_dif_domain()
1994 if (se_cmd->prot_type == TARGET_DIF_TYPE1_PROT || in isert_set_dif_domain()
1995 se_cmd->prot_type == TARGET_DIF_TYPE2_PROT) in isert_set_dif_domain()
1996 domain->sig.dif.ref_remap = true; in isert_set_dif_domain()
2004 switch (se_cmd->prot_op) { in isert_set_sig_attrs()
2007 sig_attrs->mem.sig_type = IB_SIG_TYPE_NONE; in isert_set_sig_attrs()
2008 isert_set_dif_domain(se_cmd, &sig_attrs->wire); in isert_set_sig_attrs()
2012 sig_attrs->wire.sig_type = IB_SIG_TYPE_NONE; in isert_set_sig_attrs()
2013 isert_set_dif_domain(se_cmd, &sig_attrs->mem); in isert_set_sig_attrs()
2017 isert_set_dif_domain(se_cmd, &sig_attrs->wire); in isert_set_sig_attrs()
2018 isert_set_dif_domain(se_cmd, &sig_attrs->mem); in isert_set_sig_attrs()
2021 isert_err("Unsupported PI operation %d\n", se_cmd->prot_op); in isert_set_sig_attrs()
2022 return -EINVAL; in isert_set_sig_attrs()
2025 if (se_cmd->prot_checks & TARGET_DIF_CHECK_GUARD) in isert_set_sig_attrs()
2026 sig_attrs->check_mask |= IB_SIG_CHECK_GUARD; in isert_set_sig_attrs()
2027 if (se_cmd->prot_checks & TARGET_DIF_CHECK_APPTAG) in isert_set_sig_attrs()
2028 sig_attrs->check_mask |= IB_SIG_CHECK_APPTAG; in isert_set_sig_attrs()
2029 if (se_cmd->prot_checks & TARGET_DIF_CHECK_REFTAG) in isert_set_sig_attrs()
2030 sig_attrs->check_mask |= IB_SIG_CHECK_REFTAG; in isert_set_sig_attrs()
2036 isert_rdma_rw_ctx_post(struct isert_cmd *cmd, struct isert_conn *conn, in isert_rdma_rw_ctx_post() argument
2039 struct se_cmd *se_cmd = &cmd->iscsit_cmd->se_cmd; in isert_rdma_rw_ctx_post()
2040 enum dma_data_direction dir = target_reverse_dma_direction(se_cmd); in isert_rdma_rw_ctx_post() local
2041 u8 port_num = conn->cm_id->port_num; in isert_rdma_rw_ctx_post()
2046 if (cmd->ctx_init_done) in isert_rdma_rw_ctx_post()
2049 if (dir == DMA_FROM_DEVICE) { in isert_rdma_rw_ctx_post()
2050 addr = cmd->write_va; in isert_rdma_rw_ctx_post()
2051 rkey = cmd->write_stag; in isert_rdma_rw_ctx_post()
2052 offset = cmd->iscsit_cmd->write_data_done; in isert_rdma_rw_ctx_post()
2054 addr = cmd->read_va; in isert_rdma_rw_ctx_post()
2055 rkey = cmd->read_stag; in isert_rdma_rw_ctx_post()
2067 ret = rdma_rw_ctx_signature_init(&cmd->rw, conn->qp, port_num, in isert_rdma_rw_ctx_post()
2068 se_cmd->t_data_sg, se_cmd->t_data_nents, in isert_rdma_rw_ctx_post()
2069 se_cmd->t_prot_sg, se_cmd->t_prot_nents, in isert_rdma_rw_ctx_post()
2070 &sig_attrs, addr, rkey, dir); in isert_rdma_rw_ctx_post()
2072 ret = rdma_rw_ctx_init(&cmd->rw, conn->qp, port_num, in isert_rdma_rw_ctx_post()
2073 se_cmd->t_data_sg, se_cmd->t_data_nents, in isert_rdma_rw_ctx_post()
2074 offset, addr, rkey, dir); in isert_rdma_rw_ctx_post()
2078 isert_err("Cmd: %p failed to prepare RDMA res\n", cmd); in isert_rdma_rw_ctx_post()
2082 cmd->ctx_init_done = true; in isert_rdma_rw_ctx_post()
2085 ret = rdma_rw_ctx_post(&cmd->rw, conn->qp, port_num, cqe, chain_wr); in isert_rdma_rw_ctx_post()
2087 isert_err("Cmd: %p failed to post RDMA res\n", cmd); in isert_rdma_rw_ctx_post()
2092 isert_put_datain(struct iscsit_conn *conn, struct iscsit_cmd *cmd) in isert_put_datain() argument
2094 struct se_cmd *se_cmd = &cmd->se_cmd; in isert_put_datain()
2095 struct isert_cmd *isert_cmd = iscsit_priv_cmd(cmd); in isert_put_datain()
2096 struct isert_conn *isert_conn = conn->context; in isert_put_datain()
2101 isert_dbg("Cmd: %p RDMA_WRITE data_length: %u\n", in isert_put_datain()
2102 isert_cmd, se_cmd->data_length); in isert_put_datain()
2105 isert_cmd->tx_desc.tx_cqe.done = isert_rdma_write_done; in isert_put_datain()
2106 cqe = &isert_cmd->tx_desc.tx_cqe; in isert_put_datain()
2109 * Build isert_conn->tx_desc for iSCSI response PDU and attach in isert_put_datain()
2112 &isert_cmd->tx_desc); in isert_put_datain()
2113 iscsit_build_rsp_pdu(cmd, conn, true, (struct iscsi_scsi_rsp *) in isert_put_datain()
2114 &isert_cmd->tx_desc.iscsi_header); in isert_put_datain()
2115 isert_init_tx_hdrs(isert_conn, &isert_cmd->tx_desc); in isert_put_datain()
2117 &isert_cmd->tx_desc.send_wr); in isert_put_datain()
2119 rc = isert_post_recv(isert_conn, isert_cmd->rx_desc); in isert_put_datain()
2123 chain_wr = &isert_cmd->tx_desc.send_wr; in isert_put_datain()
2127 isert_dbg("Cmd: %p posted RDMA_WRITE for iSER Data READ rc: %d\n", in isert_put_datain()
2133 isert_get_dataout(struct iscsit_conn *conn, struct iscsit_cmd *cmd, bool recovery) in isert_get_dataout() argument
2135 struct isert_cmd *isert_cmd = iscsit_priv_cmd(cmd); in isert_get_dataout()
2138 isert_dbg("Cmd: %p RDMA_READ data_length: %u write_data_done: %u\n", in isert_get_dataout()
2139 isert_cmd, cmd->se_cmd.data_length, cmd->write_data_done); in isert_get_dataout()
2141 isert_cmd->tx_desc.tx_cqe.done = isert_rdma_read_done; in isert_get_dataout()
2142 ret = isert_rdma_rw_ctx_post(isert_cmd, conn->context, in isert_get_dataout()
2143 &isert_cmd->tx_desc.tx_cqe, NULL); in isert_get_dataout()
2145 isert_dbg("Cmd: %p posted RDMA_READ memory for ISER Data WRITE rc: %d\n", in isert_get_dataout()
2151 isert_immediate_queue(struct iscsit_conn *conn, struct iscsit_cmd *cmd, int state) in isert_immediate_queue() argument
2153 struct isert_cmd *isert_cmd = iscsit_priv_cmd(cmd); in isert_immediate_queue()
2158 spin_lock_bh(&conn->cmd_lock); in isert_immediate_queue()
2159 list_del_init(&cmd->i_conn_node); in isert_immediate_queue()
2160 spin_unlock_bh(&conn->cmd_lock); in isert_immediate_queue()
2164 ret = isert_put_nopin(cmd, conn, false); in isert_immediate_queue()
2168 ret = -EINVAL; in isert_immediate_queue()
2176 isert_response_queue(struct iscsit_conn *conn, struct iscsit_cmd *cmd, int state) in isert_response_queue() argument
2178 struct isert_conn *isert_conn = conn->context; in isert_response_queue()
2183 ret = isert_put_logout_rsp(cmd, conn); in isert_response_queue()
2185 isert_conn->logout_posted = true; in isert_response_queue()
2188 ret = isert_put_nopin(cmd, conn, true); in isert_response_queue()
2191 ret = isert_put_tm_rsp(cmd, conn); in isert_response_queue()
2194 ret = isert_put_reject(cmd, conn); in isert_response_queue()
2197 ret = isert_put_text_rsp(cmd, conn); in isert_response_queue()
2204 ret = isert_put_response(conn, cmd); in isert_response_queue()
2208 ret = -EINVAL; in isert_response_queue()
2218 struct iscsi_np *np = isert_np->np; in isert_setup_id()
2223 sa = (struct sockaddr *)&np->np_sockaddr; in isert_setup_id()
2224 isert_dbg("ksockaddr: %p, sa: %p\n", &np->np_sockaddr, sa); in isert_setup_id()
2233 isert_dbg("id %p context %p\n", id, id->context); in isert_setup_id()
2274 return -ENOMEM; in isert_setup_np()
2276 sema_init(&isert_np->sem, 0); in isert_setup_np()
2277 mutex_init(&isert_np->mutex); in isert_setup_np()
2278 INIT_LIST_HEAD(&isert_np->accepted); in isert_setup_np()
2279 INIT_LIST_HEAD(&isert_np->pending); in isert_setup_np()
2280 isert_np->np = np; in isert_setup_np()
2283 * Setup the np->np_sockaddr from the passed sockaddr setup in isert_setup_np()
2286 memcpy(&np->np_sockaddr, ksockaddr, in isert_setup_np()
2295 isert_np->cm_id = isert_lid; in isert_setup_np()
2296 np->np_context = isert_np; in isert_setup_np()
2309 struct rdma_cm_id *cm_id = isert_conn->cm_id; in isert_rdma_accept()
2315 cp.initiator_depth = isert_conn->initiator_depth; in isert_rdma_accept()
2321 if (!isert_conn->snd_w_inv) in isert_rdma_accept()
2338 struct isert_conn *isert_conn = conn->context; in isert_get_login_rx()
2342 ret = wait_for_completion_interruptible(&isert_conn->login_req_comp); in isert_get_login_rx()
2348 reinit_completion(&isert_conn->login_req_comp); in isert_get_login_rx()
2352 * kick queue_delayed_work(isert_login_wq, &conn->login_work) as in isert_get_login_rx()
2356 if (!login->first_request) in isert_get_login_rx()
2362 ret = wait_for_completion_interruptible(&isert_conn->login_comp); in isert_get_login_rx()
2366 isert_info("processing login->req: %p\n", login->req); in isert_get_login_rx()
2375 struct rdma_cm_id *cm_id = isert_conn->cm_id; in isert_set_conn_info()
2376 struct rdma_route *cm_route = &cm_id->route; in isert_set_conn_info()
2378 conn->login_family = np->np_sockaddr.ss_family; in isert_set_conn_info()
2380 conn->login_sockaddr = cm_route->addr.dst_addr; in isert_set_conn_info()
2381 conn->local_sockaddr = cm_route->addr.src_addr; in isert_set_conn_info()
2387 struct isert_np *isert_np = np->np_context; in isert_accept_np()
2392 ret = down_interruptible(&isert_np->sem); in isert_accept_np()
2394 return -ENODEV; in isert_accept_np()
2396 spin_lock_bh(&np->np_thread_lock); in isert_accept_np()
2397 if (np->np_thread_state >= ISCSI_NP_THREAD_RESET) { in isert_accept_np()
2398 spin_unlock_bh(&np->np_thread_lock); in isert_accept_np()
2400 np->np_thread_state); in isert_accept_np()
2403 * is in state RESET/SHUTDOWN/EXIT - bail in isert_accept_np()
2405 return -ENODEV; in isert_accept_np()
2407 spin_unlock_bh(&np->np_thread_lock); in isert_accept_np()
2409 mutex_lock(&isert_np->mutex); in isert_accept_np()
2410 if (list_empty(&isert_np->pending)) { in isert_accept_np()
2411 mutex_unlock(&isert_np->mutex); in isert_accept_np()
2414 isert_conn = list_first_entry(&isert_np->pending, in isert_accept_np()
2416 list_del_init(&isert_conn->node); in isert_accept_np()
2417 mutex_unlock(&isert_np->mutex); in isert_accept_np()
2419 conn->context = isert_conn; in isert_accept_np()
2420 isert_conn->conn = conn; in isert_accept_np()
2421 isert_conn->state = ISER_CONN_BOUND; in isert_accept_np()
2433 struct isert_np *isert_np = np->np_context; in isert_free_np()
2437 if (isert_np->cm_id) in isert_free_np()
2438 rdma_destroy_id(isert_np->cm_id); in isert_free_np()
2444 * process. So work-around this by cleaning up what ever piled in isert_free_np()
2447 mutex_lock(&isert_np->mutex); in isert_free_np()
2448 if (!list_empty(&isert_np->pending)) { in isert_free_np()
2451 &isert_np->pending, in isert_free_np()
2454 isert_conn, isert_conn->state); in isert_free_np()
2455 list_move_tail(&isert_conn->node, &drop_conn_list); in isert_free_np()
2459 if (!list_empty(&isert_np->accepted)) { in isert_free_np()
2462 &isert_np->accepted, in isert_free_np()
2465 isert_conn, isert_conn->state); in isert_free_np()
2466 list_move_tail(&isert_conn->node, &drop_conn_list); in isert_free_np()
2469 mutex_unlock(&isert_np->mutex); in isert_free_np()
2472 list_del_init(&isert_conn->node); in isert_free_np()
2476 np->np_context = NULL; in isert_free_np()
2488 mutex_lock(&isert_conn->mutex); in isert_release_work()
2489 isert_conn->state = ISER_CONN_DOWN; in isert_release_work()
2490 mutex_unlock(&isert_conn->mutex); in isert_release_work()
2499 struct iscsit_conn *conn = isert_conn->conn; in isert_wait4logout()
2503 if (isert_conn->logout_posted) { in isert_wait4logout()
2505 wait_for_completion_timeout(&conn->conn_logout_comp, in isert_wait4logout()
2515 if (conn->sess) { in isert_wait4cmds()
2516 target_stop_cmd_counter(conn->cmd_cnt); in isert_wait4cmds()
2517 target_wait_for_cmds(conn->cmd_cnt); in isert_wait4cmds()
2522 * isert_put_unsol_pending_cmds() - Drop commands waiting for
2533 struct iscsit_cmd *cmd, *tmp; in isert_put_unsol_pending_cmds() local
2536 spin_lock_bh(&conn->cmd_lock); in isert_put_unsol_pending_cmds()
2537 list_for_each_entry_safe(cmd, tmp, &conn->conn_cmd_list, i_conn_node) { in isert_put_unsol_pending_cmds()
2538 if ((cmd->cmd_flags & ICF_NON_IMMEDIATE_UNSOLICITED_DATA) && in isert_put_unsol_pending_cmds()
2539 (cmd->write_data_done < conn->sess->sess_ops->FirstBurstLength) && in isert_put_unsol_pending_cmds()
2540 (cmd->write_data_done < cmd->se_cmd.data_length)) in isert_put_unsol_pending_cmds()
2541 list_move_tail(&cmd->i_conn_node, &drop_cmd_list); in isert_put_unsol_pending_cmds()
2543 spin_unlock_bh(&conn->cmd_lock); in isert_put_unsol_pending_cmds()
2545 list_for_each_entry_safe(cmd, tmp, &drop_cmd_list, i_conn_node) { in isert_put_unsol_pending_cmds()
2546 list_del_init(&cmd->i_conn_node); in isert_put_unsol_pending_cmds()
2547 if (cmd->i_state != ISTATE_REMOVE) { in isert_put_unsol_pending_cmds()
2548 struct isert_cmd *isert_cmd = iscsit_priv_cmd(cmd); in isert_put_unsol_pending_cmds()
2550 isert_info("conn %p dropping cmd %p\n", conn, cmd); in isert_put_unsol_pending_cmds()
2558 struct isert_conn *isert_conn = conn->context; in isert_wait_conn()
2562 mutex_lock(&isert_conn->mutex); in isert_wait_conn()
2564 mutex_unlock(&isert_conn->mutex); in isert_wait_conn()
2566 ib_drain_qp(isert_conn->qp); in isert_wait_conn()
2571 queue_work(isert_release_wq, &isert_conn->release_work); in isert_wait_conn()
2576 struct isert_conn *isert_conn = conn->context; in isert_free_conn()
2578 ib_drain_qp(isert_conn->qp); in isert_free_conn()
2619 return -ENOMEM; in isert_init()
2637 isert_info("iSER_TARGET[0] - Loaded iser_target_transport\n"); in isert_init()
2646 return -ENOMEM; in isert_init()
2655 isert_info("iSER_TARGET[0] - Released iser_target_transport\n"); in isert_exit()
2659 MODULE_DESCRIPTION("iSER-Target for mainline target infrastructure");
2660 MODULE_AUTHOR("nab@Linux-iSCSI.org");