Lines Matching +full:ctrl +full:- +full:len
1 // SPDX-License-Identifier: GPL-2.0
12 #include <linux/nvme-tcp.h>
13 #include <linux/nvme-keyring.h>
19 #include <linux/blk-mq.h>
31 * A non-zero value being sufficient to indicate general consideration of any
45 MODULE_PARM_DESC(wq_unbound, "Use unbound workqueue for nvme-tcp IO context (default false)");
61 * sk_lock -> mmap_lock (page fault) -> fs locks -> sk_lock
62 * because dependencies are tracked for both nvme-tcp and user contexts. Using
63 * a separate class prevents lockdep from conflating nvme-tcp socket use with
64 * user-space socket API use.
71 struct sock *sk = sock->sk; in nvme_tcp_reclassify_socket()
76 switch (sk->sk_family) { in nvme_tcp_reclassify_socket()
78 sock_lock_init_class_and_name(sk, "slock-AF_INET-NVME", in nvme_tcp_reclassify_socket()
80 "sk_lock-AF_INET-NVME", in nvme_tcp_reclassify_socket()
84 sock_lock_init_class_and_name(sk, "slock-AF_INET6-NVME", in nvme_tcp_reclassify_socket()
86 "sk_lock-AF_INET6-NVME", in nvme_tcp_reclassify_socket()
165 struct nvme_tcp_ctrl *ctrl; member
195 struct nvme_ctrl ctrl; member
210 static inline struct nvme_tcp_ctrl *to_tcp_ctrl(struct nvme_ctrl *ctrl) in to_tcp_ctrl() argument
212 return container_of(ctrl, struct nvme_tcp_ctrl, ctrl); in to_tcp_ctrl()
217 return queue - queue->ctrl->queues; in nvme_tcp_queue_id()
241 return queue->tls_enabled; in nvme_tcp_queue_tls()
247 static inline bool nvme_tcp_tls_configured(struct nvme_ctrl *ctrl) in nvme_tcp_tls_configured() argument
252 return ctrl->opts->tls; in nvme_tcp_tls_configured()
260 return queue->ctrl->admin_tag_set.tags[queue_idx]; in nvme_tcp_tagset()
261 return queue->ctrl->tag_set.tags[queue_idx - 1]; in nvme_tcp_tagset()
266 return queue->hdr_digest ? NVME_TCP_DIGEST_LENGTH : 0; in nvme_tcp_hdgst_len()
271 return queue->data_digest ? NVME_TCP_DIGEST_LENGTH : 0; in nvme_tcp_ddgst_len()
276 return req->pdu; in nvme_tcp_req_cmd_pdu()
282 return req->pdu + sizeof(struct nvme_tcp_cmd_pdu) - in nvme_tcp_req_data_pdu()
288 if (nvme_is_fabrics(req->req.cmd)) in nvme_tcp_inline_data_size()
290 return req->queue->cmnd_capsule_len - sizeof(struct nvme_command); in nvme_tcp_inline_data_size()
295 return req == &req->queue->ctrl->async_req; in nvme_tcp_async_req()
307 return rq_data_dir(rq) == WRITE && req->data_len && in nvme_tcp_has_inline_data()
308 req->data_len <= nvme_tcp_inline_data_size(req); in nvme_tcp_has_inline_data()
313 return req->iter.bvec->bv_page; in nvme_tcp_req_cur_page()
318 return req->iter.bvec->bv_offset + req->iter.iov_offset; in nvme_tcp_req_cur_offset()
323 return min_t(size_t, iov_iter_single_seg_count(&req->iter), in nvme_tcp_req_cur_length()
324 req->pdu_len - req->pdu_sent); in nvme_tcp_req_cur_length()
330 req->pdu_len - req->pdu_sent : 0; in nvme_tcp_pdu_data_left()
334 int len) in nvme_tcp_pdu_last_send() argument
336 return nvme_tcp_pdu_data_left(req) <= len; in nvme_tcp_pdu_last_send()
348 if (rq->rq_flags & RQF_SPECIAL_PAYLOAD) { in nvme_tcp_init_iter()
349 vec = &rq->special_vec; in nvme_tcp_init_iter()
354 struct bio *bio = req->curr_bio; in nvme_tcp_init_iter()
358 vec = __bvec_iter_bvec(bio->bi_io_vec, bio->bi_iter); in nvme_tcp_init_iter()
363 size = bio->bi_iter.bi_size; in nvme_tcp_init_iter()
364 offset = bio->bi_iter.bi_bvec_done; in nvme_tcp_init_iter()
367 iov_iter_bvec(&req->iter, dir, vec, nr_bvec, size); in nvme_tcp_init_iter()
368 req->iter.iov_offset = offset; in nvme_tcp_init_iter()
372 int len) in nvme_tcp_advance_req() argument
374 req->data_sent += len; in nvme_tcp_advance_req()
375 req->pdu_sent += len; in nvme_tcp_advance_req()
376 iov_iter_advance(&req->iter, len); in nvme_tcp_advance_req()
377 if (!iov_iter_count(&req->iter) && in nvme_tcp_advance_req()
378 req->data_sent < req->data_len) { in nvme_tcp_advance_req()
379 req->curr_bio = req->curr_bio->bi_next; in nvme_tcp_advance_req()
396 return !list_empty(&queue->send_list) || in nvme_tcp_queue_has_pending()
397 !llist_empty(&queue->req_list); in nvme_tcp_queue_has_pending()
409 struct nvme_tcp_queue *queue = req->queue; in nvme_tcp_queue_request()
412 empty = llist_add(&req->lentry, &queue->req_list) && in nvme_tcp_queue_request()
413 list_empty(&queue->send_list) && !queue->request; in nvme_tcp_queue_request()
420 if (queue->io_cpu == raw_smp_processor_id() && in nvme_tcp_queue_request()
421 sync && empty && mutex_trylock(&queue->send_mutex)) { in nvme_tcp_queue_request()
423 mutex_unlock(&queue->send_mutex); in nvme_tcp_queue_request()
427 queue_work_on(queue->io_cpu, nvme_tcp_wq, &queue->io_work); in nvme_tcp_queue_request()
435 for (node = llist_del_all(&queue->req_list); node; node = node->next) { in nvme_tcp_process_req_list()
437 list_add(&req->entry, &queue->send_list); in nvme_tcp_process_req_list()
446 req = list_first_entry_or_null(&queue->send_list, in nvme_tcp_fetch_request()
450 req = list_first_entry_or_null(&queue->send_list, in nvme_tcp_fetch_request()
456 list_del(&req->entry); in nvme_tcp_fetch_request()
468 struct page *page, off_t off, size_t len) in nvme_tcp_ddgst_update() argument
473 sg_set_page(&sg, page, len, off); in nvme_tcp_ddgst_update()
474 ahash_request_set_crypt(hash, &sg, NULL, len); in nvme_tcp_ddgst_update()
479 void *pdu, size_t len) in nvme_tcp_hdgst() argument
483 sg_init_one(&sg, pdu, len); in nvme_tcp_hdgst()
484 ahash_request_set_crypt(hash, &sg, pdu + len, len); in nvme_tcp_hdgst()
495 if (unlikely(!(hdr->flags & NVME_TCP_F_HDGST))) { in nvme_tcp_verify_hdgst()
496 dev_err(queue->ctrl->ctrl.device, in nvme_tcp_verify_hdgst()
499 return -EPROTO; in nvme_tcp_verify_hdgst()
502 recv_digest = *(__le32 *)(pdu + hdr->hlen); in nvme_tcp_verify_hdgst()
503 nvme_tcp_hdgst(queue->rcv_hash, pdu, pdu_len); in nvme_tcp_verify_hdgst()
504 exp_digest = *(__le32 *)(pdu + hdr->hlen); in nvme_tcp_verify_hdgst()
506 dev_err(queue->ctrl->ctrl.device, in nvme_tcp_verify_hdgst()
509 return -EIO; in nvme_tcp_verify_hdgst()
519 u32 len; in nvme_tcp_check_ddgst() local
521 len = le32_to_cpu(hdr->plen) - hdr->hlen - in nvme_tcp_check_ddgst()
522 ((hdr->flags & NVME_TCP_F_HDGST) ? digest_len : 0); in nvme_tcp_check_ddgst()
524 if (unlikely(len && !(hdr->flags & NVME_TCP_F_DDGST))) { in nvme_tcp_check_ddgst()
525 dev_err(queue->ctrl->ctrl.device, in nvme_tcp_check_ddgst()
528 return -EPROTO; in nvme_tcp_check_ddgst()
530 crypto_ahash_init(queue->rcv_hash); in nvme_tcp_check_ddgst()
540 page_frag_free(req->pdu); in nvme_tcp_exit_request()
547 struct nvme_tcp_ctrl *ctrl = to_tcp_ctrl(set->driver_data); in nvme_tcp_init_request() local
550 int queue_idx = (set == &ctrl->tag_set) ? hctx_idx + 1 : 0; in nvme_tcp_init_request()
551 struct nvme_tcp_queue *queue = &ctrl->queues[queue_idx]; in nvme_tcp_init_request()
554 req->pdu = page_frag_alloc(&queue->pf_cache, in nvme_tcp_init_request()
557 if (!req->pdu) in nvme_tcp_init_request()
558 return -ENOMEM; in nvme_tcp_init_request()
560 pdu = req->pdu; in nvme_tcp_init_request()
561 req->queue = queue; in nvme_tcp_init_request()
562 nvme_req(rq)->ctrl = &ctrl->ctrl; in nvme_tcp_init_request()
563 nvme_req(rq)->cmd = &pdu->cmd; in nvme_tcp_init_request()
571 struct nvme_tcp_ctrl *ctrl = to_tcp_ctrl(data); in nvme_tcp_init_hctx() local
572 struct nvme_tcp_queue *queue = &ctrl->queues[hctx_idx + 1]; in nvme_tcp_init_hctx()
574 hctx->driver_data = queue; in nvme_tcp_init_hctx()
581 struct nvme_tcp_ctrl *ctrl = to_tcp_ctrl(data); in nvme_tcp_init_admin_hctx() local
582 struct nvme_tcp_queue *queue = &ctrl->queues[0]; in nvme_tcp_init_admin_hctx()
584 hctx->driver_data = queue; in nvme_tcp_init_admin_hctx()
591 return (queue->pdu_remaining) ? NVME_TCP_RECV_PDU : in nvme_tcp_recv_state()
592 (queue->ddgst_remaining) ? NVME_TCP_RECV_DDGST : in nvme_tcp_recv_state()
598 queue->pdu_remaining = sizeof(struct nvme_tcp_rsp_pdu) + in nvme_tcp_init_recv_ctx()
600 queue->pdu_offset = 0; in nvme_tcp_init_recv_ctx()
601 queue->data_remaining = -1; in nvme_tcp_init_recv_ctx()
602 queue->ddgst_remaining = 0; in nvme_tcp_init_recv_ctx()
605 static void nvme_tcp_error_recovery(struct nvme_ctrl *ctrl) in nvme_tcp_error_recovery() argument
607 if (!nvme_change_ctrl_state(ctrl, NVME_CTRL_RESETTING)) in nvme_tcp_error_recovery()
610 dev_warn(ctrl->device, "starting error recovery\n"); in nvme_tcp_error_recovery()
611 queue_work(nvme_reset_wq, &to_tcp_ctrl(ctrl)->err_work); in nvme_tcp_error_recovery()
620 rq = nvme_find_rq(nvme_tcp_tagset(queue), cqe->command_id); in nvme_tcp_process_nvme_cqe()
622 dev_err(queue->ctrl->ctrl.device, in nvme_tcp_process_nvme_cqe()
624 cqe->command_id, nvme_tcp_queue_id(queue)); in nvme_tcp_process_nvme_cqe()
625 nvme_tcp_error_recovery(&queue->ctrl->ctrl); in nvme_tcp_process_nvme_cqe()
626 return -EINVAL; in nvme_tcp_process_nvme_cqe()
630 if (req->status == cpu_to_le16(NVME_SC_SUCCESS)) in nvme_tcp_process_nvme_cqe()
631 req->status = cqe->status; in nvme_tcp_process_nvme_cqe()
633 if (!nvme_try_complete_req(rq, req->status, cqe->result)) in nvme_tcp_process_nvme_cqe()
635 queue->nr_cqe++; in nvme_tcp_process_nvme_cqe()
645 rq = nvme_find_rq(nvme_tcp_tagset(queue), pdu->command_id); in nvme_tcp_handle_c2h_data()
647 dev_err(queue->ctrl->ctrl.device, in nvme_tcp_handle_c2h_data()
649 pdu->command_id, nvme_tcp_queue_id(queue)); in nvme_tcp_handle_c2h_data()
650 return -ENOENT; in nvme_tcp_handle_c2h_data()
654 dev_err(queue->ctrl->ctrl.device, in nvme_tcp_handle_c2h_data()
656 nvme_tcp_queue_id(queue), rq->tag); in nvme_tcp_handle_c2h_data()
657 return -EIO; in nvme_tcp_handle_c2h_data()
660 queue->data_remaining = le32_to_cpu(pdu->data_length); in nvme_tcp_handle_c2h_data()
662 if (pdu->hdr.flags & NVME_TCP_F_DATA_SUCCESS && in nvme_tcp_handle_c2h_data()
663 unlikely(!(pdu->hdr.flags & NVME_TCP_F_DATA_LAST))) { in nvme_tcp_handle_c2h_data()
664 dev_err(queue->ctrl->ctrl.device, in nvme_tcp_handle_c2h_data()
666 nvme_tcp_queue_id(queue), rq->tag); in nvme_tcp_handle_c2h_data()
667 nvme_tcp_error_recovery(&queue->ctrl->ctrl); in nvme_tcp_handle_c2h_data()
668 return -EPROTO; in nvme_tcp_handle_c2h_data()
677 struct nvme_completion *cqe = &pdu->cqe; in nvme_tcp_handle_comp()
687 cqe->command_id))) in nvme_tcp_handle_comp()
688 nvme_complete_async_event(&queue->ctrl->ctrl, cqe->status, in nvme_tcp_handle_comp()
689 &cqe->result); in nvme_tcp_handle_comp()
699 struct nvme_tcp_queue *queue = req->queue; in nvme_tcp_setup_h2c_data_pdu()
701 u32 h2cdata_sent = req->pdu_len; in nvme_tcp_setup_h2c_data_pdu()
705 req->state = NVME_TCP_SEND_H2C_PDU; in nvme_tcp_setup_h2c_data_pdu()
706 req->offset = 0; in nvme_tcp_setup_h2c_data_pdu()
707 req->pdu_len = min(req->h2cdata_left, queue->maxh2cdata); in nvme_tcp_setup_h2c_data_pdu()
708 req->pdu_sent = 0; in nvme_tcp_setup_h2c_data_pdu()
709 req->h2cdata_left -= req->pdu_len; in nvme_tcp_setup_h2c_data_pdu()
710 req->h2cdata_offset += h2cdata_sent; in nvme_tcp_setup_h2c_data_pdu()
713 data->hdr.type = nvme_tcp_h2c_data; in nvme_tcp_setup_h2c_data_pdu()
714 if (!req->h2cdata_left) in nvme_tcp_setup_h2c_data_pdu()
715 data->hdr.flags = NVME_TCP_F_DATA_LAST; in nvme_tcp_setup_h2c_data_pdu()
716 if (queue->hdr_digest) in nvme_tcp_setup_h2c_data_pdu()
717 data->hdr.flags |= NVME_TCP_F_HDGST; in nvme_tcp_setup_h2c_data_pdu()
718 if (queue->data_digest) in nvme_tcp_setup_h2c_data_pdu()
719 data->hdr.flags |= NVME_TCP_F_DDGST; in nvme_tcp_setup_h2c_data_pdu()
720 data->hdr.hlen = sizeof(*data); in nvme_tcp_setup_h2c_data_pdu()
721 data->hdr.pdo = data->hdr.hlen + hdgst; in nvme_tcp_setup_h2c_data_pdu()
722 data->hdr.plen = in nvme_tcp_setup_h2c_data_pdu()
723 cpu_to_le32(data->hdr.hlen + hdgst + req->pdu_len + ddgst); in nvme_tcp_setup_h2c_data_pdu()
724 data->ttag = req->ttag; in nvme_tcp_setup_h2c_data_pdu()
725 data->command_id = nvme_cid(rq); in nvme_tcp_setup_h2c_data_pdu()
726 data->data_offset = cpu_to_le32(req->h2cdata_offset); in nvme_tcp_setup_h2c_data_pdu()
727 data->data_length = cpu_to_le32(req->pdu_len); in nvme_tcp_setup_h2c_data_pdu()
735 u32 r2t_length = le32_to_cpu(pdu->r2t_length); in nvme_tcp_handle_r2t()
736 u32 r2t_offset = le32_to_cpu(pdu->r2t_offset); in nvme_tcp_handle_r2t()
738 rq = nvme_find_rq(nvme_tcp_tagset(queue), pdu->command_id); in nvme_tcp_handle_r2t()
740 dev_err(queue->ctrl->ctrl.device, in nvme_tcp_handle_r2t()
742 pdu->command_id, nvme_tcp_queue_id(queue)); in nvme_tcp_handle_r2t()
743 return -ENOENT; in nvme_tcp_handle_r2t()
748 dev_err(queue->ctrl->ctrl.device, in nvme_tcp_handle_r2t()
749 "req %d r2t len is %u, probably a bug...\n", in nvme_tcp_handle_r2t()
750 rq->tag, r2t_length); in nvme_tcp_handle_r2t()
751 return -EPROTO; in nvme_tcp_handle_r2t()
754 if (unlikely(req->data_sent + r2t_length > req->data_len)) { in nvme_tcp_handle_r2t()
755 dev_err(queue->ctrl->ctrl.device, in nvme_tcp_handle_r2t()
756 "req %d r2t len %u exceeded data len %u (%zu sent)\n", in nvme_tcp_handle_r2t()
757 rq->tag, r2t_length, req->data_len, req->data_sent); in nvme_tcp_handle_r2t()
758 return -EPROTO; in nvme_tcp_handle_r2t()
761 if (unlikely(r2t_offset < req->data_sent)) { in nvme_tcp_handle_r2t()
762 dev_err(queue->ctrl->ctrl.device, in nvme_tcp_handle_r2t()
764 rq->tag, r2t_offset, req->data_sent); in nvme_tcp_handle_r2t()
765 return -EPROTO; in nvme_tcp_handle_r2t()
768 req->pdu_len = 0; in nvme_tcp_handle_r2t()
769 req->h2cdata_left = r2t_length; in nvme_tcp_handle_r2t()
770 req->h2cdata_offset = r2t_offset; in nvme_tcp_handle_r2t()
771 req->ttag = pdu->ttag; in nvme_tcp_handle_r2t()
784 u32 plen = le32_to_cpu(pdu->hdr.plen); in nvme_tcp_handle_c2h_term()
797 dev_err(queue->ctrl->ctrl.device, in nvme_tcp_handle_c2h_term()
803 fes = le16_to_cpu(pdu->fes); in nvme_tcp_handle_c2h_term()
809 dev_err(queue->ctrl->ctrl.device, in nvme_tcp_handle_c2h_term()
814 unsigned int *offset, size_t *len) in nvme_tcp_recv_pdu() argument
817 char *pdu = queue->pdu; in nvme_tcp_recv_pdu()
818 size_t rcv_len = min_t(size_t, *len, queue->pdu_remaining); in nvme_tcp_recv_pdu()
822 &pdu[queue->pdu_offset], rcv_len); in nvme_tcp_recv_pdu()
826 queue->pdu_remaining -= rcv_len; in nvme_tcp_recv_pdu()
827 queue->pdu_offset += rcv_len; in nvme_tcp_recv_pdu()
829 *len -= rcv_len; in nvme_tcp_recv_pdu()
830 if (queue->pdu_remaining) in nvme_tcp_recv_pdu()
833 hdr = queue->pdu; in nvme_tcp_recv_pdu()
834 if (unlikely(hdr->hlen != sizeof(struct nvme_tcp_rsp_pdu))) { in nvme_tcp_recv_pdu()
835 if (!nvme_tcp_recv_pdu_supported(hdr->type)) in nvme_tcp_recv_pdu()
838 dev_err(queue->ctrl->ctrl.device, in nvme_tcp_recv_pdu()
840 hdr->type, hdr->hlen); in nvme_tcp_recv_pdu()
841 return -EPROTO; in nvme_tcp_recv_pdu()
844 if (unlikely(hdr->type == nvme_tcp_c2h_term)) { in nvme_tcp_recv_pdu()
849 nvme_tcp_handle_c2h_term(queue, (void *)queue->pdu); in nvme_tcp_recv_pdu()
850 return -EINVAL; in nvme_tcp_recv_pdu()
853 if (queue->hdr_digest) { in nvme_tcp_recv_pdu()
854 ret = nvme_tcp_verify_hdgst(queue, queue->pdu, hdr->hlen); in nvme_tcp_recv_pdu()
860 if (queue->data_digest) { in nvme_tcp_recv_pdu()
861 ret = nvme_tcp_check_ddgst(queue, queue->pdu); in nvme_tcp_recv_pdu()
866 switch (hdr->type) { in nvme_tcp_recv_pdu()
868 return nvme_tcp_handle_c2h_data(queue, (void *)queue->pdu); in nvme_tcp_recv_pdu()
871 return nvme_tcp_handle_comp(queue, (void *)queue->pdu); in nvme_tcp_recv_pdu()
874 return nvme_tcp_handle_r2t(queue, (void *)queue->pdu); in nvme_tcp_recv_pdu()
880 dev_err(queue->ctrl->ctrl.device, in nvme_tcp_recv_pdu()
881 "unsupported pdu type (%d)\n", hdr->type); in nvme_tcp_recv_pdu()
882 return -EINVAL; in nvme_tcp_recv_pdu()
894 unsigned int *offset, size_t *len) in nvme_tcp_recv_data() argument
896 struct nvme_tcp_data_pdu *pdu = (void *)queue->pdu; in nvme_tcp_recv_data()
898 nvme_cid_to_rq(nvme_tcp_tagset(queue), pdu->command_id); in nvme_tcp_recv_data()
904 recv_len = min_t(size_t, *len, queue->data_remaining); in nvme_tcp_recv_data()
908 if (!iov_iter_count(&req->iter)) { in nvme_tcp_recv_data()
909 req->curr_bio = req->curr_bio->bi_next; in nvme_tcp_recv_data()
915 if (!req->curr_bio) { in nvme_tcp_recv_data()
916 dev_err(queue->ctrl->ctrl.device, in nvme_tcp_recv_data()
918 nvme_tcp_queue_id(queue), rq->tag); in nvme_tcp_recv_data()
920 return -EIO; in nvme_tcp_recv_data()
927 iov_iter_count(&req->iter)); in nvme_tcp_recv_data()
929 if (queue->data_digest) in nvme_tcp_recv_data()
931 &req->iter, recv_len, queue->rcv_hash); in nvme_tcp_recv_data()
934 &req->iter, recv_len); in nvme_tcp_recv_data()
936 dev_err(queue->ctrl->ctrl.device, in nvme_tcp_recv_data()
938 nvme_tcp_queue_id(queue), rq->tag); in nvme_tcp_recv_data()
942 *len -= recv_len; in nvme_tcp_recv_data()
944 queue->data_remaining -= recv_len; in nvme_tcp_recv_data()
947 if (!queue->data_remaining) { in nvme_tcp_recv_data()
948 if (queue->data_digest) { in nvme_tcp_recv_data()
949 nvme_tcp_ddgst_final(queue->rcv_hash, &queue->exp_ddgst); in nvme_tcp_recv_data()
950 queue->ddgst_remaining = NVME_TCP_DIGEST_LENGTH; in nvme_tcp_recv_data()
952 if (pdu->hdr.flags & NVME_TCP_F_DATA_SUCCESS) { in nvme_tcp_recv_data()
954 le16_to_cpu(req->status)); in nvme_tcp_recv_data()
955 queue->nr_cqe++; in nvme_tcp_recv_data()
965 struct sk_buff *skb, unsigned int *offset, size_t *len) in nvme_tcp_recv_ddgst() argument
967 struct nvme_tcp_data_pdu *pdu = (void *)queue->pdu; in nvme_tcp_recv_ddgst()
968 char *ddgst = (char *)&queue->recv_ddgst; in nvme_tcp_recv_ddgst()
969 size_t recv_len = min_t(size_t, *len, queue->ddgst_remaining); in nvme_tcp_recv_ddgst()
970 off_t off = NVME_TCP_DIGEST_LENGTH - queue->ddgst_remaining; in nvme_tcp_recv_ddgst()
977 queue->ddgst_remaining -= recv_len; in nvme_tcp_recv_ddgst()
979 *len -= recv_len; in nvme_tcp_recv_ddgst()
980 if (queue->ddgst_remaining) in nvme_tcp_recv_ddgst()
983 if (queue->recv_ddgst != queue->exp_ddgst) { in nvme_tcp_recv_ddgst()
985 pdu->command_id); in nvme_tcp_recv_ddgst()
988 req->status = cpu_to_le16(NVME_SC_DATA_XFER_ERROR); in nvme_tcp_recv_ddgst()
990 dev_err(queue->ctrl->ctrl.device, in nvme_tcp_recv_ddgst()
992 le32_to_cpu(queue->recv_ddgst), in nvme_tcp_recv_ddgst()
993 le32_to_cpu(queue->exp_ddgst)); in nvme_tcp_recv_ddgst()
996 if (pdu->hdr.flags & NVME_TCP_F_DATA_SUCCESS) { in nvme_tcp_recv_ddgst()
998 pdu->command_id); in nvme_tcp_recv_ddgst()
1001 nvme_tcp_end_request(rq, le16_to_cpu(req->status)); in nvme_tcp_recv_ddgst()
1002 queue->nr_cqe++; in nvme_tcp_recv_ddgst()
1010 unsigned int offset, size_t len) in nvme_tcp_recv_skb() argument
1012 struct nvme_tcp_queue *queue = desc->arg.data; in nvme_tcp_recv_skb()
1013 size_t consumed = len; in nvme_tcp_recv_skb()
1016 if (unlikely(!queue->rd_enabled)) in nvme_tcp_recv_skb()
1017 return -EFAULT; in nvme_tcp_recv_skb()
1019 while (len) { in nvme_tcp_recv_skb()
1022 result = nvme_tcp_recv_pdu(queue, skb, &offset, &len); in nvme_tcp_recv_skb()
1025 result = nvme_tcp_recv_data(queue, skb, &offset, &len); in nvme_tcp_recv_skb()
1028 result = nvme_tcp_recv_ddgst(queue, skb, &offset, &len); in nvme_tcp_recv_skb()
1031 result = -EFAULT; in nvme_tcp_recv_skb()
1034 dev_err(queue->ctrl->ctrl.device, in nvme_tcp_recv_skb()
1036 queue->rd_enabled = false; in nvme_tcp_recv_skb()
1037 nvme_tcp_error_recovery(&queue->ctrl->ctrl); in nvme_tcp_recv_skb()
1051 read_lock_bh(&sk->sk_callback_lock); in nvme_tcp_data_ready()
1052 queue = sk->sk_user_data; in nvme_tcp_data_ready()
1053 if (likely(queue && queue->rd_enabled) && in nvme_tcp_data_ready()
1054 !test_bit(NVME_TCP_Q_POLLING, &queue->flags)) in nvme_tcp_data_ready()
1055 queue_work_on(queue->io_cpu, nvme_tcp_wq, &queue->io_work); in nvme_tcp_data_ready()
1056 read_unlock_bh(&sk->sk_callback_lock); in nvme_tcp_data_ready()
1063 read_lock_bh(&sk->sk_callback_lock); in nvme_tcp_write_space()
1064 queue = sk->sk_user_data; in nvme_tcp_write_space()
1066 clear_bit(SOCK_NOSPACE, &sk->sk_socket->flags); in nvme_tcp_write_space()
1067 queue_work_on(queue->io_cpu, nvme_tcp_wq, &queue->io_work); in nvme_tcp_write_space()
1069 read_unlock_bh(&sk->sk_callback_lock); in nvme_tcp_write_space()
1076 read_lock_bh(&sk->sk_callback_lock); in nvme_tcp_state_change()
1077 queue = sk->sk_user_data; in nvme_tcp_state_change()
1081 switch (sk->sk_state) { in nvme_tcp_state_change()
1087 nvme_tcp_error_recovery(&queue->ctrl->ctrl); in nvme_tcp_state_change()
1090 dev_info(queue->ctrl->ctrl.device, in nvme_tcp_state_change()
1092 nvme_tcp_queue_id(queue), sk->sk_state); in nvme_tcp_state_change()
1095 queue->state_change(sk); in nvme_tcp_state_change()
1097 read_unlock_bh(&sk->sk_callback_lock); in nvme_tcp_state_change()
1102 queue->request = NULL; in nvme_tcp_done_send_req()
1110 nvme_complete_async_event(&req->queue->ctrl->ctrl, in nvme_tcp_fail_request()
1120 struct nvme_tcp_queue *queue = req->queue; in nvme_tcp_try_send_data()
1121 int req_data_len = req->data_len; in nvme_tcp_try_send_data()
1122 u32 h2cdata_left = req->h2cdata_left; in nvme_tcp_try_send_data()
1131 size_t len = nvme_tcp_req_cur_length(req); in nvme_tcp_try_send_data() local
1132 bool last = nvme_tcp_pdu_last_send(req, len); in nvme_tcp_try_send_data()
1133 int req_data_sent = req->data_sent; in nvme_tcp_try_send_data()
1136 if (last && !queue->data_digest && !nvme_tcp_queue_more(queue)) in nvme_tcp_try_send_data()
1141 if (!sendpages_ok(page, len, offset)) in nvme_tcp_try_send_data()
1144 bvec_set_page(&bvec, page, len, offset); in nvme_tcp_try_send_data()
1145 iov_iter_bvec(&msg.msg_iter, ITER_SOURCE, &bvec, 1, len); in nvme_tcp_try_send_data()
1146 ret = sock_sendmsg(queue->sock, &msg); in nvme_tcp_try_send_data()
1150 if (queue->data_digest) in nvme_tcp_try_send_data()
1151 nvme_tcp_ddgst_update(queue->snd_hash, page, in nvme_tcp_try_send_data()
1163 if (last && ret == len) { in nvme_tcp_try_send_data()
1164 if (queue->data_digest) { in nvme_tcp_try_send_data()
1165 nvme_tcp_ddgst_final(queue->snd_hash, in nvme_tcp_try_send_data()
1166 &req->ddgst); in nvme_tcp_try_send_data()
1167 req->state = NVME_TCP_SEND_DDGST; in nvme_tcp_try_send_data()
1168 req->offset = 0; in nvme_tcp_try_send_data()
1178 return -EAGAIN; in nvme_tcp_try_send_data()
1183 struct nvme_tcp_queue *queue = req->queue; in nvme_tcp_try_send_cmd_pdu()
1189 int len = sizeof(*pdu) + hdgst - req->offset; in nvme_tcp_try_send_cmd_pdu() local
1197 if (queue->hdr_digest && !req->offset) in nvme_tcp_try_send_cmd_pdu()
1198 nvme_tcp_hdgst(queue->snd_hash, pdu, sizeof(*pdu)); in nvme_tcp_try_send_cmd_pdu()
1200 bvec_set_virt(&bvec, (void *)pdu + req->offset, len); in nvme_tcp_try_send_cmd_pdu()
1201 iov_iter_bvec(&msg.msg_iter, ITER_SOURCE, &bvec, 1, len); in nvme_tcp_try_send_cmd_pdu()
1202 ret = sock_sendmsg(queue->sock, &msg); in nvme_tcp_try_send_cmd_pdu()
1206 len -= ret; in nvme_tcp_try_send_cmd_pdu()
1207 if (!len) { in nvme_tcp_try_send_cmd_pdu()
1209 req->state = NVME_TCP_SEND_DATA; in nvme_tcp_try_send_cmd_pdu()
1210 if (queue->data_digest) in nvme_tcp_try_send_cmd_pdu()
1211 crypto_ahash_init(queue->snd_hash); in nvme_tcp_try_send_cmd_pdu()
1217 req->offset += ret; in nvme_tcp_try_send_cmd_pdu()
1219 return -EAGAIN; in nvme_tcp_try_send_cmd_pdu()
1224 struct nvme_tcp_queue *queue = req->queue; in nvme_tcp_try_send_data_pdu()
1229 int len = sizeof(*pdu) - req->offset + hdgst; in nvme_tcp_try_send_data_pdu() local
1232 if (queue->hdr_digest && !req->offset) in nvme_tcp_try_send_data_pdu()
1233 nvme_tcp_hdgst(queue->snd_hash, pdu, sizeof(*pdu)); in nvme_tcp_try_send_data_pdu()
1235 if (!req->h2cdata_left) in nvme_tcp_try_send_data_pdu()
1238 bvec_set_virt(&bvec, (void *)pdu + req->offset, len); in nvme_tcp_try_send_data_pdu()
1239 iov_iter_bvec(&msg.msg_iter, ITER_SOURCE, &bvec, 1, len); in nvme_tcp_try_send_data_pdu()
1240 ret = sock_sendmsg(queue->sock, &msg); in nvme_tcp_try_send_data_pdu()
1244 len -= ret; in nvme_tcp_try_send_data_pdu()
1245 if (!len) { in nvme_tcp_try_send_data_pdu()
1246 req->state = NVME_TCP_SEND_DATA; in nvme_tcp_try_send_data_pdu()
1247 if (queue->data_digest) in nvme_tcp_try_send_data_pdu()
1248 crypto_ahash_init(queue->snd_hash); in nvme_tcp_try_send_data_pdu()
1251 req->offset += ret; in nvme_tcp_try_send_data_pdu()
1253 return -EAGAIN; in nvme_tcp_try_send_data_pdu()
1258 struct nvme_tcp_queue *queue = req->queue; in nvme_tcp_try_send_ddgst()
1259 size_t offset = req->offset; in nvme_tcp_try_send_ddgst()
1260 u32 h2cdata_left = req->h2cdata_left; in nvme_tcp_try_send_ddgst()
1264 .iov_base = (u8 *)&req->ddgst + req->offset, in nvme_tcp_try_send_ddgst()
1265 .iov_len = NVME_TCP_DIGEST_LENGTH - req->offset in nvme_tcp_try_send_ddgst()
1273 ret = kernel_sendmsg(queue->sock, &msg, &iov, 1, iov.iov_len); in nvme_tcp_try_send_ddgst()
1285 req->offset += ret; in nvme_tcp_try_send_ddgst()
1286 return -EAGAIN; in nvme_tcp_try_send_ddgst()
1295 if (!queue->request) { in nvme_tcp_try_send()
1296 queue->request = nvme_tcp_fetch_request(queue); in nvme_tcp_try_send()
1297 if (!queue->request) in nvme_tcp_try_send()
1300 req = queue->request; in nvme_tcp_try_send()
1303 if (req->state == NVME_TCP_SEND_CMD_PDU) { in nvme_tcp_try_send()
1311 if (req->state == NVME_TCP_SEND_H2C_PDU) { in nvme_tcp_try_send()
1317 if (req->state == NVME_TCP_SEND_DATA) { in nvme_tcp_try_send()
1323 if (req->state == NVME_TCP_SEND_DDGST) in nvme_tcp_try_send()
1326 if (ret == -EAGAIN) { in nvme_tcp_try_send()
1329 dev_err(queue->ctrl->ctrl.device, in nvme_tcp_try_send()
1331 nvme_tcp_fail_request(queue->request); in nvme_tcp_try_send()
1341 struct socket *sock = queue->sock; in nvme_tcp_try_recv()
1342 struct sock *sk = sock->sk; in nvme_tcp_try_recv()
1349 queue->nr_cqe = 0; in nvme_tcp_try_recv()
1350 consumed = sock->ops->read_sock(sk, &rd_desc, nvme_tcp_recv_skb); in nvme_tcp_try_recv()
1365 if (mutex_trylock(&queue->send_mutex)) { in nvme_tcp_io_work()
1367 mutex_unlock(&queue->send_mutex); in nvme_tcp_io_work()
1380 if (!pending || !queue->rd_enabled) in nvme_tcp_io_work()
1385 queue_work_on(queue->io_cpu, nvme_tcp_wq, &queue->io_work); in nvme_tcp_io_work()
1390 struct crypto_ahash *tfm = crypto_ahash_reqtfm(queue->rcv_hash); in nvme_tcp_free_crypto()
1392 ahash_request_free(queue->rcv_hash); in nvme_tcp_free_crypto()
1393 ahash_request_free(queue->snd_hash); in nvme_tcp_free_crypto()
1405 queue->snd_hash = ahash_request_alloc(tfm, GFP_KERNEL); in nvme_tcp_alloc_crypto()
1406 if (!queue->snd_hash) in nvme_tcp_alloc_crypto()
1408 ahash_request_set_callback(queue->snd_hash, 0, NULL, NULL); in nvme_tcp_alloc_crypto()
1410 queue->rcv_hash = ahash_request_alloc(tfm, GFP_KERNEL); in nvme_tcp_alloc_crypto()
1411 if (!queue->rcv_hash) in nvme_tcp_alloc_crypto()
1413 ahash_request_set_callback(queue->rcv_hash, 0, NULL, NULL); in nvme_tcp_alloc_crypto()
1417 ahash_request_free(queue->snd_hash); in nvme_tcp_alloc_crypto()
1420 return -ENOMEM; in nvme_tcp_alloc_crypto()
1423 static void nvme_tcp_free_async_req(struct nvme_tcp_ctrl *ctrl) in nvme_tcp_free_async_req() argument
1425 struct nvme_tcp_request *async = &ctrl->async_req; in nvme_tcp_free_async_req()
1427 page_frag_free(async->pdu); in nvme_tcp_free_async_req()
1430 static int nvme_tcp_alloc_async_req(struct nvme_tcp_ctrl *ctrl) in nvme_tcp_alloc_async_req() argument
1432 struct nvme_tcp_queue *queue = &ctrl->queues[0]; in nvme_tcp_alloc_async_req()
1433 struct nvme_tcp_request *async = &ctrl->async_req; in nvme_tcp_alloc_async_req()
1436 async->pdu = page_frag_alloc(&queue->pf_cache, in nvme_tcp_alloc_async_req()
1439 if (!async->pdu) in nvme_tcp_alloc_async_req()
1440 return -ENOMEM; in nvme_tcp_alloc_async_req()
1442 async->queue = &ctrl->queues[0]; in nvme_tcp_alloc_async_req()
1448 struct nvme_tcp_ctrl *ctrl = to_tcp_ctrl(nctrl); in nvme_tcp_free_queue() local
1449 struct nvme_tcp_queue *queue = &ctrl->queues[qid]; in nvme_tcp_free_queue()
1452 if (!test_and_clear_bit(NVME_TCP_Q_ALLOCATED, &queue->flags)) in nvme_tcp_free_queue()
1455 if (queue->hdr_digest || queue->data_digest) in nvme_tcp_free_queue()
1458 page_frag_cache_drain(&queue->pf_cache); in nvme_tcp_free_queue()
1461 /* ->sock will be released by fput() */ in nvme_tcp_free_queue()
1462 fput(queue->sock->file); in nvme_tcp_free_queue()
1463 queue->sock = NULL; in nvme_tcp_free_queue()
1466 kfree(queue->pdu); in nvme_tcp_free_queue()
1467 mutex_destroy(&queue->send_mutex); in nvme_tcp_free_queue()
1468 mutex_destroy(&queue->queue_lock); in nvme_tcp_free_queue()
1485 return -ENOMEM; in nvme_tcp_init_connection()
1489 ret = -ENOMEM; in nvme_tcp_init_connection()
1493 icreq->hdr.type = nvme_tcp_icreq; in nvme_tcp_init_connection()
1494 icreq->hdr.hlen = sizeof(*icreq); in nvme_tcp_init_connection()
1495 icreq->hdr.pdo = 0; in nvme_tcp_init_connection()
1496 icreq->hdr.plen = cpu_to_le32(icreq->hdr.hlen); in nvme_tcp_init_connection()
1497 icreq->pfv = cpu_to_le16(NVME_TCP_PFV_1_0); in nvme_tcp_init_connection()
1498 icreq->maxr2t = 0; /* single inflight r2t supported */ in nvme_tcp_init_connection()
1499 icreq->hpda = 0; /* no alignment constraint */ in nvme_tcp_init_connection()
1500 if (queue->hdr_digest) in nvme_tcp_init_connection()
1501 icreq->digest |= NVME_TCP_HDR_DIGEST_ENABLE; in nvme_tcp_init_connection()
1502 if (queue->data_digest) in nvme_tcp_init_connection()
1503 icreq->digest |= NVME_TCP_DATA_DIGEST_ENABLE; in nvme_tcp_init_connection()
1507 ret = kernel_sendmsg(queue->sock, &msg, &iov, 1, iov.iov_len); in nvme_tcp_init_connection()
1522 ret = kernel_recvmsg(queue->sock, &msg, &iov, 1, in nvme_tcp_init_connection()
1525 ret = -ECONNRESET; in nvme_tcp_init_connection()
1531 ret = -ENOTCONN; in nvme_tcp_init_connection()
1533 ctype = tls_get_record_type(queue->sock->sk, in nvme_tcp_init_connection()
1541 ret = -EINVAL; in nvme_tcp_init_connection()
1542 if (icresp->hdr.type != nvme_tcp_icresp) { in nvme_tcp_init_connection()
1544 nvme_tcp_queue_id(queue), icresp->hdr.type); in nvme_tcp_init_connection()
1548 if (le32_to_cpu(icresp->hdr.plen) != sizeof(*icresp)) { in nvme_tcp_init_connection()
1550 nvme_tcp_queue_id(queue), icresp->hdr.plen); in nvme_tcp_init_connection()
1554 if (icresp->pfv != NVME_TCP_PFV_1_0) { in nvme_tcp_init_connection()
1556 nvme_tcp_queue_id(queue), icresp->pfv); in nvme_tcp_init_connection()
1560 ctrl_ddgst = !!(icresp->digest & NVME_TCP_DATA_DIGEST_ENABLE); in nvme_tcp_init_connection()
1561 if ((queue->data_digest && !ctrl_ddgst) || in nvme_tcp_init_connection()
1562 (!queue->data_digest && ctrl_ddgst)) { in nvme_tcp_init_connection()
1563 pr_err("queue %d: data digest mismatch host: %s ctrl: %s\n", in nvme_tcp_init_connection()
1565 queue->data_digest ? "enabled" : "disabled", in nvme_tcp_init_connection()
1570 ctrl_hdgst = !!(icresp->digest & NVME_TCP_HDR_DIGEST_ENABLE); in nvme_tcp_init_connection()
1571 if ((queue->hdr_digest && !ctrl_hdgst) || in nvme_tcp_init_connection()
1572 (!queue->hdr_digest && ctrl_hdgst)) { in nvme_tcp_init_connection()
1573 pr_err("queue %d: header digest mismatch host: %s ctrl: %s\n", in nvme_tcp_init_connection()
1575 queue->hdr_digest ? "enabled" : "disabled", in nvme_tcp_init_connection()
1580 if (icresp->cpda != 0) { in nvme_tcp_init_connection()
1582 nvme_tcp_queue_id(queue), icresp->cpda); in nvme_tcp_init_connection()
1586 maxh2cdata = le32_to_cpu(icresp->maxdata); in nvme_tcp_init_connection()
1592 queue->maxh2cdata = maxh2cdata; in nvme_tcp_init_connection()
1609 struct nvme_tcp_ctrl *ctrl = queue->ctrl; in nvme_tcp_default_queue() local
1613 qid < 1 + ctrl->io_queues[HCTX_TYPE_DEFAULT]; in nvme_tcp_default_queue()
1618 struct nvme_tcp_ctrl *ctrl = queue->ctrl; in nvme_tcp_read_queue() local
1623 qid < 1 + ctrl->io_queues[HCTX_TYPE_DEFAULT] + in nvme_tcp_read_queue()
1624 ctrl->io_queues[HCTX_TYPE_READ]; in nvme_tcp_read_queue()
1629 struct nvme_tcp_ctrl *ctrl = queue->ctrl; in nvme_tcp_poll_queue() local
1635 qid < 1 + ctrl->io_queues[HCTX_TYPE_DEFAULT] + in nvme_tcp_poll_queue()
1636 ctrl->io_queues[HCTX_TYPE_READ] + in nvme_tcp_poll_queue()
1637 ctrl->io_queues[HCTX_TYPE_POLL]; in nvme_tcp_poll_queue()
1641 * Track the number of queues assigned to each cpu using a global per-cpu
1651 struct nvme_tcp_ctrl *ctrl = queue->ctrl; in nvme_tcp_set_queue_io_cpu() local
1652 struct blk_mq_tag_set *set = &ctrl->tag_set; in nvme_tcp_set_queue_io_cpu()
1653 int qid = nvme_tcp_queue_id(queue) - 1; in nvme_tcp_set_queue_io_cpu()
1661 mq_map = set->map[HCTX_TYPE_DEFAULT].mq_map; in nvme_tcp_set_queue_io_cpu()
1663 mq_map = set->map[HCTX_TYPE_READ].mq_map; in nvme_tcp_set_queue_io_cpu()
1665 mq_map = set->map[HCTX_TYPE_POLL].mq_map; in nvme_tcp_set_queue_io_cpu()
1683 queue->io_cpu = io_cpu; in nvme_tcp_set_queue_io_cpu()
1685 set_bit(NVME_TCP_Q_IO_CPU_SET, &queue->flags); in nvme_tcp_set_queue_io_cpu()
1688 dev_dbg(ctrl->ctrl.device, "queue %d: using cpu %d\n", in nvme_tcp_set_queue_io_cpu()
1689 qid, queue->io_cpu); in nvme_tcp_set_queue_io_cpu()
1695 struct nvme_tcp_ctrl *ctrl = queue->ctrl; in nvme_tcp_tls_done() local
1699 dev_dbg(ctrl->ctrl.device, "queue %d: TLS handshake done, key %x, status %d\n", in nvme_tcp_tls_done()
1703 queue->tls_err = -status; in nvme_tcp_tls_done()
1709 dev_warn(ctrl->ctrl.device, "queue %d: Invalid key %x\n", in nvme_tcp_tls_done()
1711 queue->tls_err = -ENOKEY; in nvme_tcp_tls_done()
1713 queue->tls_enabled = true; in nvme_tcp_tls_done()
1715 ctrl->ctrl.tls_pskid = key_serial(tls_key); in nvme_tcp_tls_done()
1717 queue->tls_err = 0; in nvme_tcp_tls_done()
1721 complete(&queue->tls_complete); in nvme_tcp_tls_done()
1734 dev_dbg(nctrl->device, "queue %d: start TLS with key %x\n", in nvme_tcp_start_tls()
1737 args.ta_sock = queue->sock; in nvme_tcp_start_tls()
1742 if (nctrl->opts->keyring) in nvme_tcp_start_tls()
1743 keyring = key_serial(nctrl->opts->keyring); in nvme_tcp_start_tls()
1746 queue->tls_err = -EOPNOTSUPP; in nvme_tcp_start_tls()
1747 init_completion(&queue->tls_complete); in nvme_tcp_start_tls()
1750 dev_err(nctrl->device, "queue %d: failed to start TLS: %d\n", in nvme_tcp_start_tls()
1754 ret = wait_for_completion_interruptible_timeout(&queue->tls_complete, tmo); in nvme_tcp_start_tls()
1757 ret = -ETIMEDOUT; in nvme_tcp_start_tls()
1759 dev_err(nctrl->device, in nvme_tcp_start_tls()
1762 tls_handshake_cancel(queue->sock->sk); in nvme_tcp_start_tls()
1764 dev_dbg(nctrl->device, in nvme_tcp_start_tls()
1766 qid, queue->tls_err); in nvme_tcp_start_tls()
1767 ret = queue->tls_err; in nvme_tcp_start_tls()
1775 struct nvme_tcp_ctrl *ctrl = to_tcp_ctrl(nctrl); in nvme_tcp_alloc_queue() local
1776 struct nvme_tcp_queue *queue = &ctrl->queues[qid]; in nvme_tcp_alloc_queue()
1780 mutex_init(&queue->queue_lock); in nvme_tcp_alloc_queue()
1781 queue->ctrl = ctrl; in nvme_tcp_alloc_queue()
1782 init_llist_head(&queue->req_list); in nvme_tcp_alloc_queue()
1783 INIT_LIST_HEAD(&queue->send_list); in nvme_tcp_alloc_queue()
1784 mutex_init(&queue->send_mutex); in nvme_tcp_alloc_queue()
1785 INIT_WORK(&queue->io_work, nvme_tcp_io_work); in nvme_tcp_alloc_queue()
1788 queue->cmnd_capsule_len = nctrl->ioccsz * 16; in nvme_tcp_alloc_queue()
1790 queue->cmnd_capsule_len = sizeof(struct nvme_command) + in nvme_tcp_alloc_queue()
1793 ret = sock_create(ctrl->addr.ss_family, SOCK_STREAM, in nvme_tcp_alloc_queue()
1794 IPPROTO_TCP, &queue->sock); in nvme_tcp_alloc_queue()
1796 dev_err(nctrl->device, in nvme_tcp_alloc_queue()
1801 sock_file = sock_alloc_file(queue->sock, O_CLOEXEC, NULL); in nvme_tcp_alloc_queue()
1806 nvme_tcp_reclassify_socket(queue->sock); in nvme_tcp_alloc_queue()
1809 tcp_sock_set_syncnt(queue->sock->sk, 1); in nvme_tcp_alloc_queue()
1812 tcp_sock_set_nodelay(queue->sock->sk); in nvme_tcp_alloc_queue()
1819 sock_no_linger(queue->sock->sk); in nvme_tcp_alloc_queue()
1822 sock_set_priority(queue->sock->sk, so_priority); in nvme_tcp_alloc_queue()
1825 if (nctrl->opts->tos >= 0) in nvme_tcp_alloc_queue()
1826 ip_sock_set_tos(queue->sock->sk, nctrl->opts->tos); in nvme_tcp_alloc_queue()
1829 queue->sock->sk->sk_rcvtimeo = 10 * HZ; in nvme_tcp_alloc_queue()
1831 queue->sock->sk->sk_allocation = GFP_ATOMIC; in nvme_tcp_alloc_queue()
1832 queue->sock->sk->sk_use_task_frag = false; in nvme_tcp_alloc_queue()
1833 queue->io_cpu = WORK_CPU_UNBOUND; in nvme_tcp_alloc_queue()
1834 queue->request = NULL; in nvme_tcp_alloc_queue()
1835 queue->data_remaining = 0; in nvme_tcp_alloc_queue()
1836 queue->ddgst_remaining = 0; in nvme_tcp_alloc_queue()
1837 queue->pdu_remaining = 0; in nvme_tcp_alloc_queue()
1838 queue->pdu_offset = 0; in nvme_tcp_alloc_queue()
1839 sk_set_memalloc(queue->sock->sk); in nvme_tcp_alloc_queue()
1841 if (nctrl->opts->mask & NVMF_OPT_HOST_TRADDR) { in nvme_tcp_alloc_queue()
1842 ret = kernel_bind(queue->sock, (struct sockaddr *)&ctrl->src_addr, in nvme_tcp_alloc_queue()
1843 sizeof(ctrl->src_addr)); in nvme_tcp_alloc_queue()
1845 dev_err(nctrl->device, in nvme_tcp_alloc_queue()
1852 if (nctrl->opts->mask & NVMF_OPT_HOST_IFACE) { in nvme_tcp_alloc_queue()
1853 char *iface = nctrl->opts->host_iface; in nvme_tcp_alloc_queue()
1856 ret = sock_setsockopt(queue->sock, SOL_SOCKET, SO_BINDTODEVICE, in nvme_tcp_alloc_queue()
1859 dev_err(nctrl->device, in nvme_tcp_alloc_queue()
1866 queue->hdr_digest = nctrl->opts->hdr_digest; in nvme_tcp_alloc_queue()
1867 queue->data_digest = nctrl->opts->data_digest; in nvme_tcp_alloc_queue()
1868 if (queue->hdr_digest || queue->data_digest) { in nvme_tcp_alloc_queue()
1871 dev_err(nctrl->device, in nvme_tcp_alloc_queue()
1879 queue->pdu = kmalloc(rcv_pdu_size, GFP_KERNEL); in nvme_tcp_alloc_queue()
1880 if (!queue->pdu) { in nvme_tcp_alloc_queue()
1881 ret = -ENOMEM; in nvme_tcp_alloc_queue()
1885 dev_dbg(nctrl->device, "connecting queue %d\n", in nvme_tcp_alloc_queue()
1888 ret = kernel_connect(queue->sock, (struct sockaddr *)&ctrl->addr, in nvme_tcp_alloc_queue()
1889 sizeof(ctrl->addr), 0); in nvme_tcp_alloc_queue()
1891 dev_err(nctrl->device, in nvme_tcp_alloc_queue()
1907 set_bit(NVME_TCP_Q_ALLOCATED, &queue->flags); in nvme_tcp_alloc_queue()
1912 kernel_sock_shutdown(queue->sock, SHUT_RDWR); in nvme_tcp_alloc_queue()
1914 kfree(queue->pdu); in nvme_tcp_alloc_queue()
1916 if (queue->hdr_digest || queue->data_digest) in nvme_tcp_alloc_queue()
1919 /* ->sock will be released by fput() */ in nvme_tcp_alloc_queue()
1920 fput(queue->sock->file); in nvme_tcp_alloc_queue()
1921 queue->sock = NULL; in nvme_tcp_alloc_queue()
1923 mutex_destroy(&queue->send_mutex); in nvme_tcp_alloc_queue()
1924 mutex_destroy(&queue->queue_lock); in nvme_tcp_alloc_queue()
1930 struct socket *sock = queue->sock; in nvme_tcp_restore_sock_ops()
1932 write_lock_bh(&sock->sk->sk_callback_lock); in nvme_tcp_restore_sock_ops()
1933 sock->sk->sk_user_data = NULL; in nvme_tcp_restore_sock_ops()
1934 sock->sk->sk_data_ready = queue->data_ready; in nvme_tcp_restore_sock_ops()
1935 sock->sk->sk_state_change = queue->state_change; in nvme_tcp_restore_sock_ops()
1936 sock->sk->sk_write_space = queue->write_space; in nvme_tcp_restore_sock_ops()
1937 write_unlock_bh(&sock->sk->sk_callback_lock); in nvme_tcp_restore_sock_ops()
1942 kernel_sock_shutdown(queue->sock, SHUT_RDWR); in __nvme_tcp_stop_queue()
1944 cancel_work_sync(&queue->io_work); in __nvme_tcp_stop_queue()
1949 struct nvme_tcp_ctrl *ctrl = to_tcp_ctrl(nctrl); in nvme_tcp_stop_queue() local
1950 struct nvme_tcp_queue *queue = &ctrl->queues[qid]; in nvme_tcp_stop_queue()
1952 if (!test_bit(NVME_TCP_Q_ALLOCATED, &queue->flags)) in nvme_tcp_stop_queue()
1955 if (test_and_clear_bit(NVME_TCP_Q_IO_CPU_SET, &queue->flags)) in nvme_tcp_stop_queue()
1956 atomic_dec(&nvme_tcp_cpu_queues[queue->io_cpu]); in nvme_tcp_stop_queue()
1958 mutex_lock(&queue->queue_lock); in nvme_tcp_stop_queue()
1959 if (test_and_clear_bit(NVME_TCP_Q_LIVE, &queue->flags)) in nvme_tcp_stop_queue()
1962 queue->tls_enabled = false; in nvme_tcp_stop_queue()
1963 mutex_unlock(&queue->queue_lock); in nvme_tcp_stop_queue()
1968 write_lock_bh(&queue->sock->sk->sk_callback_lock); in nvme_tcp_setup_sock_ops()
1969 queue->sock->sk->sk_user_data = queue; in nvme_tcp_setup_sock_ops()
1970 queue->state_change = queue->sock->sk->sk_state_change; in nvme_tcp_setup_sock_ops()
1971 queue->data_ready = queue->sock->sk->sk_data_ready; in nvme_tcp_setup_sock_ops()
1972 queue->write_space = queue->sock->sk->sk_write_space; in nvme_tcp_setup_sock_ops()
1973 queue->sock->sk->sk_data_ready = nvme_tcp_data_ready; in nvme_tcp_setup_sock_ops()
1974 queue->sock->sk->sk_state_change = nvme_tcp_state_change; in nvme_tcp_setup_sock_ops()
1975 queue->sock->sk->sk_write_space = nvme_tcp_write_space; in nvme_tcp_setup_sock_ops()
1977 queue->sock->sk->sk_ll_usec = 1; in nvme_tcp_setup_sock_ops()
1979 write_unlock_bh(&queue->sock->sk->sk_callback_lock); in nvme_tcp_setup_sock_ops()
1984 struct nvme_tcp_ctrl *ctrl = to_tcp_ctrl(nctrl); in nvme_tcp_start_queue() local
1985 struct nvme_tcp_queue *queue = &ctrl->queues[idx]; in nvme_tcp_start_queue()
1988 queue->rd_enabled = true; in nvme_tcp_start_queue()
1999 set_bit(NVME_TCP_Q_LIVE, &queue->flags); in nvme_tcp_start_queue()
2001 if (test_bit(NVME_TCP_Q_ALLOCATED, &queue->flags)) in nvme_tcp_start_queue()
2003 dev_err(nctrl->device, in nvme_tcp_start_queue()
2009 static void nvme_tcp_free_admin_queue(struct nvme_ctrl *ctrl) in nvme_tcp_free_admin_queue() argument
2011 if (to_tcp_ctrl(ctrl)->async_req.pdu) { in nvme_tcp_free_admin_queue()
2012 cancel_work_sync(&ctrl->async_event_work); in nvme_tcp_free_admin_queue()
2013 nvme_tcp_free_async_req(to_tcp_ctrl(ctrl)); in nvme_tcp_free_admin_queue()
2014 to_tcp_ctrl(ctrl)->async_req.pdu = NULL; in nvme_tcp_free_admin_queue()
2017 nvme_tcp_free_queue(ctrl, 0); in nvme_tcp_free_admin_queue()
2020 static void nvme_tcp_free_io_queues(struct nvme_ctrl *ctrl) in nvme_tcp_free_io_queues() argument
2024 for (i = 1; i < ctrl->queue_count; i++) in nvme_tcp_free_io_queues()
2025 nvme_tcp_free_queue(ctrl, i); in nvme_tcp_free_io_queues()
2028 static void nvme_tcp_stop_io_queues(struct nvme_ctrl *ctrl) in nvme_tcp_stop_io_queues() argument
2032 for (i = 1; i < ctrl->queue_count; i++) in nvme_tcp_stop_io_queues()
2033 nvme_tcp_stop_queue(ctrl, i); in nvme_tcp_stop_io_queues()
2036 static int nvme_tcp_start_io_queues(struct nvme_ctrl *ctrl, in nvme_tcp_start_io_queues() argument
2042 ret = nvme_tcp_start_queue(ctrl, i); in nvme_tcp_start_io_queues()
2050 for (i--; i >= first; i--) in nvme_tcp_start_io_queues()
2051 nvme_tcp_stop_queue(ctrl, i); in nvme_tcp_start_io_queues()
2055 static int nvme_tcp_alloc_admin_queue(struct nvme_ctrl *ctrl) in nvme_tcp_alloc_admin_queue() argument
2060 if (nvme_tcp_tls_configured(ctrl)) { in nvme_tcp_alloc_admin_queue()
2061 if (ctrl->opts->tls_key) in nvme_tcp_alloc_admin_queue()
2062 pskid = key_serial(ctrl->opts->tls_key); in nvme_tcp_alloc_admin_queue()
2064 pskid = nvme_tls_psk_default(ctrl->opts->keyring, in nvme_tcp_alloc_admin_queue()
2065 ctrl->opts->host->nqn, in nvme_tcp_alloc_admin_queue()
2066 ctrl->opts->subsysnqn); in nvme_tcp_alloc_admin_queue()
2068 dev_err(ctrl->device, "no valid PSK found\n"); in nvme_tcp_alloc_admin_queue()
2069 return -ENOKEY; in nvme_tcp_alloc_admin_queue()
2074 ret = nvme_tcp_alloc_queue(ctrl, 0, pskid); in nvme_tcp_alloc_admin_queue()
2078 ret = nvme_tcp_alloc_async_req(to_tcp_ctrl(ctrl)); in nvme_tcp_alloc_admin_queue()
2085 nvme_tcp_free_queue(ctrl, 0); in nvme_tcp_alloc_admin_queue()
2089 static int __nvme_tcp_alloc_io_queues(struct nvme_ctrl *ctrl) in __nvme_tcp_alloc_io_queues() argument
2093 if (nvme_tcp_tls_configured(ctrl) && !ctrl->tls_pskid) { in __nvme_tcp_alloc_io_queues()
2094 dev_err(ctrl->device, "no PSK negotiated\n"); in __nvme_tcp_alloc_io_queues()
2095 return -ENOKEY; in __nvme_tcp_alloc_io_queues()
2098 for (i = 1; i < ctrl->queue_count; i++) { in __nvme_tcp_alloc_io_queues()
2099 ret = nvme_tcp_alloc_queue(ctrl, i, in __nvme_tcp_alloc_io_queues()
2100 ctrl->tls_pskid); in __nvme_tcp_alloc_io_queues()
2108 for (i--; i >= 1; i--) in __nvme_tcp_alloc_io_queues()
2109 nvme_tcp_free_queue(ctrl, i); in __nvme_tcp_alloc_io_queues()
2114 static int nvme_tcp_alloc_io_queues(struct nvme_ctrl *ctrl) in nvme_tcp_alloc_io_queues() argument
2119 nr_io_queues = nvmf_nr_io_queues(ctrl->opts); in nvme_tcp_alloc_io_queues()
2120 ret = nvme_set_queue_count(ctrl, &nr_io_queues); in nvme_tcp_alloc_io_queues()
2125 dev_err(ctrl->device, in nvme_tcp_alloc_io_queues()
2127 return -ENOMEM; in nvme_tcp_alloc_io_queues()
2130 ctrl->queue_count = nr_io_queues + 1; in nvme_tcp_alloc_io_queues()
2131 dev_info(ctrl->device, in nvme_tcp_alloc_io_queues()
2134 nvmf_set_io_queues(ctrl->opts, nr_io_queues, in nvme_tcp_alloc_io_queues()
2135 to_tcp_ctrl(ctrl)->io_queues); in nvme_tcp_alloc_io_queues()
2136 return __nvme_tcp_alloc_io_queues(ctrl); in nvme_tcp_alloc_io_queues()
2139 static int nvme_tcp_configure_io_queues(struct nvme_ctrl *ctrl, bool new) in nvme_tcp_configure_io_queues() argument
2143 ret = nvme_tcp_alloc_io_queues(ctrl); in nvme_tcp_configure_io_queues()
2148 ret = nvme_alloc_io_tag_set(ctrl, &to_tcp_ctrl(ctrl)->tag_set, in nvme_tcp_configure_io_queues()
2150 ctrl->opts->nr_poll_queues ? HCTX_MAX_TYPES : 2, in nvme_tcp_configure_io_queues()
2161 nr_queues = min(ctrl->tagset->nr_hw_queues + 1, ctrl->queue_count); in nvme_tcp_configure_io_queues()
2162 ret = nvme_tcp_start_io_queues(ctrl, 1, nr_queues); in nvme_tcp_configure_io_queues()
2167 nvme_start_freeze(ctrl); in nvme_tcp_configure_io_queues()
2168 nvme_unquiesce_io_queues(ctrl); in nvme_tcp_configure_io_queues()
2169 if (!nvme_wait_freeze_timeout(ctrl, NVME_IO_TIMEOUT)) { in nvme_tcp_configure_io_queues()
2175 ret = -ENODEV; in nvme_tcp_configure_io_queues()
2176 nvme_unfreeze(ctrl); in nvme_tcp_configure_io_queues()
2179 blk_mq_update_nr_hw_queues(ctrl->tagset, in nvme_tcp_configure_io_queues()
2180 ctrl->queue_count - 1); in nvme_tcp_configure_io_queues()
2181 nvme_unfreeze(ctrl); in nvme_tcp_configure_io_queues()
2188 ret = nvme_tcp_start_io_queues(ctrl, nr_queues, in nvme_tcp_configure_io_queues()
2189 ctrl->tagset->nr_hw_queues + 1); in nvme_tcp_configure_io_queues()
2196 nvme_quiesce_io_queues(ctrl); in nvme_tcp_configure_io_queues()
2197 nvme_sync_io_queues(ctrl); in nvme_tcp_configure_io_queues()
2198 nvme_tcp_stop_io_queues(ctrl); in nvme_tcp_configure_io_queues()
2200 nvme_cancel_tagset(ctrl); in nvme_tcp_configure_io_queues()
2202 nvme_remove_io_tag_set(ctrl); in nvme_tcp_configure_io_queues()
2204 nvme_tcp_free_io_queues(ctrl); in nvme_tcp_configure_io_queues()
2208 static int nvme_tcp_configure_admin_queue(struct nvme_ctrl *ctrl, bool new) in nvme_tcp_configure_admin_queue() argument
2212 error = nvme_tcp_alloc_admin_queue(ctrl); in nvme_tcp_configure_admin_queue()
2217 error = nvme_alloc_admin_tag_set(ctrl, in nvme_tcp_configure_admin_queue()
2218 &to_tcp_ctrl(ctrl)->admin_tag_set, in nvme_tcp_configure_admin_queue()
2225 error = nvme_tcp_start_queue(ctrl, 0); in nvme_tcp_configure_admin_queue()
2229 error = nvme_enable_ctrl(ctrl); in nvme_tcp_configure_admin_queue()
2233 nvme_unquiesce_admin_queue(ctrl); in nvme_tcp_configure_admin_queue()
2235 error = nvme_init_ctrl_finish(ctrl, false); in nvme_tcp_configure_admin_queue()
2242 nvme_quiesce_admin_queue(ctrl); in nvme_tcp_configure_admin_queue()
2243 blk_sync_queue(ctrl->admin_q); in nvme_tcp_configure_admin_queue()
2245 nvme_tcp_stop_queue(ctrl, 0); in nvme_tcp_configure_admin_queue()
2246 nvme_cancel_admin_tagset(ctrl); in nvme_tcp_configure_admin_queue()
2249 nvme_remove_admin_tag_set(ctrl); in nvme_tcp_configure_admin_queue()
2251 nvme_tcp_free_admin_queue(ctrl); in nvme_tcp_configure_admin_queue()
2255 static void nvme_tcp_teardown_admin_queue(struct nvme_ctrl *ctrl, in nvme_tcp_teardown_admin_queue() argument
2258 nvme_quiesce_admin_queue(ctrl); in nvme_tcp_teardown_admin_queue()
2259 blk_sync_queue(ctrl->admin_q); in nvme_tcp_teardown_admin_queue()
2260 nvme_tcp_stop_queue(ctrl, 0); in nvme_tcp_teardown_admin_queue()
2261 nvme_cancel_admin_tagset(ctrl); in nvme_tcp_teardown_admin_queue()
2263 nvme_unquiesce_admin_queue(ctrl); in nvme_tcp_teardown_admin_queue()
2264 nvme_remove_admin_tag_set(ctrl); in nvme_tcp_teardown_admin_queue()
2266 nvme_tcp_free_admin_queue(ctrl); in nvme_tcp_teardown_admin_queue()
2267 if (ctrl->tls_pskid) { in nvme_tcp_teardown_admin_queue()
2268 dev_dbg(ctrl->device, "Wipe negotiated TLS_PSK %08x\n", in nvme_tcp_teardown_admin_queue()
2269 ctrl->tls_pskid); in nvme_tcp_teardown_admin_queue()
2270 ctrl->tls_pskid = 0; in nvme_tcp_teardown_admin_queue()
2274 static void nvme_tcp_teardown_io_queues(struct nvme_ctrl *ctrl, in nvme_tcp_teardown_io_queues() argument
2277 if (ctrl->queue_count <= 1) in nvme_tcp_teardown_io_queues()
2279 nvme_quiesce_io_queues(ctrl); in nvme_tcp_teardown_io_queues()
2280 nvme_sync_io_queues(ctrl); in nvme_tcp_teardown_io_queues()
2281 nvme_tcp_stop_io_queues(ctrl); in nvme_tcp_teardown_io_queues()
2282 nvme_cancel_tagset(ctrl); in nvme_tcp_teardown_io_queues()
2284 nvme_unquiesce_io_queues(ctrl); in nvme_tcp_teardown_io_queues()
2285 nvme_remove_io_tag_set(ctrl); in nvme_tcp_teardown_io_queues()
2287 nvme_tcp_free_io_queues(ctrl); in nvme_tcp_teardown_io_queues()
2290 static void nvme_tcp_reconnect_or_remove(struct nvme_ctrl *ctrl, in nvme_tcp_reconnect_or_remove() argument
2293 enum nvme_ctrl_state state = nvme_ctrl_state(ctrl); in nvme_tcp_reconnect_or_remove()
2301 if (nvmf_should_reconnect(ctrl, status)) { in nvme_tcp_reconnect_or_remove()
2302 dev_info(ctrl->device, "Reconnecting in %d seconds...\n", in nvme_tcp_reconnect_or_remove()
2303 ctrl->opts->reconnect_delay); in nvme_tcp_reconnect_or_remove()
2304 queue_delayed_work(nvme_wq, &to_tcp_ctrl(ctrl)->connect_work, in nvme_tcp_reconnect_or_remove()
2305 ctrl->opts->reconnect_delay * HZ); in nvme_tcp_reconnect_or_remove()
2307 dev_info(ctrl->device, "Removing controller (%d)...\n", in nvme_tcp_reconnect_or_remove()
2309 nvme_delete_ctrl(ctrl); in nvme_tcp_reconnect_or_remove()
2313 static int nvme_tcp_setup_ctrl(struct nvme_ctrl *ctrl, bool new) in nvme_tcp_setup_ctrl() argument
2315 struct nvmf_ctrl_options *opts = ctrl->opts; in nvme_tcp_setup_ctrl()
2318 ret = nvme_tcp_configure_admin_queue(ctrl, new); in nvme_tcp_setup_ctrl()
2322 if (ctrl->icdoff) { in nvme_tcp_setup_ctrl()
2323 ret = -EOPNOTSUPP; in nvme_tcp_setup_ctrl()
2324 dev_err(ctrl->device, "icdoff is not supported!\n"); in nvme_tcp_setup_ctrl()
2328 if (!nvme_ctrl_sgl_supported(ctrl)) { in nvme_tcp_setup_ctrl()
2329 ret = -EOPNOTSUPP; in nvme_tcp_setup_ctrl()
2330 dev_err(ctrl->device, "Mandatory sgls are not supported!\n"); in nvme_tcp_setup_ctrl()
2334 if (opts->queue_size > ctrl->sqsize + 1) in nvme_tcp_setup_ctrl()
2335 dev_warn(ctrl->device, in nvme_tcp_setup_ctrl()
2336 "queue_size %zu > ctrl sqsize %u, clamping down\n", in nvme_tcp_setup_ctrl()
2337 opts->queue_size, ctrl->sqsize + 1); in nvme_tcp_setup_ctrl()
2339 if (ctrl->sqsize + 1 > ctrl->maxcmd) { in nvme_tcp_setup_ctrl()
2340 dev_warn(ctrl->device, in nvme_tcp_setup_ctrl()
2341 "sqsize %u > ctrl maxcmd %u, clamping down\n", in nvme_tcp_setup_ctrl()
2342 ctrl->sqsize + 1, ctrl->maxcmd); in nvme_tcp_setup_ctrl()
2343 ctrl->sqsize = ctrl->maxcmd - 1; in nvme_tcp_setup_ctrl()
2346 if (ctrl->queue_count > 1) { in nvme_tcp_setup_ctrl()
2347 ret = nvme_tcp_configure_io_queues(ctrl, new); in nvme_tcp_setup_ctrl()
2352 if (!nvme_change_ctrl_state(ctrl, NVME_CTRL_LIVE)) { in nvme_tcp_setup_ctrl()
2354 * state change failure is ok if we started ctrl delete, in nvme_tcp_setup_ctrl()
2358 enum nvme_ctrl_state state = nvme_ctrl_state(ctrl); in nvme_tcp_setup_ctrl()
2363 ret = -EINVAL; in nvme_tcp_setup_ctrl()
2367 nvme_start_ctrl(ctrl); in nvme_tcp_setup_ctrl()
2371 if (ctrl->queue_count > 1) { in nvme_tcp_setup_ctrl()
2372 nvme_quiesce_io_queues(ctrl); in nvme_tcp_setup_ctrl()
2373 nvme_sync_io_queues(ctrl); in nvme_tcp_setup_ctrl()
2374 nvme_tcp_stop_io_queues(ctrl); in nvme_tcp_setup_ctrl()
2375 nvme_cancel_tagset(ctrl); in nvme_tcp_setup_ctrl()
2377 nvme_remove_io_tag_set(ctrl); in nvme_tcp_setup_ctrl()
2378 nvme_tcp_free_io_queues(ctrl); in nvme_tcp_setup_ctrl()
2381 nvme_stop_keep_alive(ctrl); in nvme_tcp_setup_ctrl()
2382 nvme_tcp_teardown_admin_queue(ctrl, new); in nvme_tcp_setup_ctrl()
2390 struct nvme_ctrl *ctrl = &tcp_ctrl->ctrl; in nvme_tcp_reconnect_ctrl_work() local
2393 ++ctrl->nr_reconnects; in nvme_tcp_reconnect_ctrl_work()
2395 ret = nvme_tcp_setup_ctrl(ctrl, false); in nvme_tcp_reconnect_ctrl_work()
2399 dev_info(ctrl->device, "Successfully reconnected (attempt %d/%d)\n", in nvme_tcp_reconnect_ctrl_work()
2400 ctrl->nr_reconnects, ctrl->opts->max_reconnects); in nvme_tcp_reconnect_ctrl_work()
2402 ctrl->nr_reconnects = 0; in nvme_tcp_reconnect_ctrl_work()
2407 dev_info(ctrl->device, "Failed reconnect attempt %d/%d\n", in nvme_tcp_reconnect_ctrl_work()
2408 ctrl->nr_reconnects, ctrl->opts->max_reconnects); in nvme_tcp_reconnect_ctrl_work()
2409 nvme_tcp_reconnect_or_remove(ctrl, ret); in nvme_tcp_reconnect_ctrl_work()
2416 struct nvme_ctrl *ctrl = &tcp_ctrl->ctrl; in nvme_tcp_error_recovery_work() local
2418 nvme_stop_keep_alive(ctrl); in nvme_tcp_error_recovery_work()
2419 flush_work(&ctrl->async_event_work); in nvme_tcp_error_recovery_work()
2420 nvme_tcp_teardown_io_queues(ctrl, false); in nvme_tcp_error_recovery_work()
2422 nvme_unquiesce_io_queues(ctrl); in nvme_tcp_error_recovery_work()
2423 nvme_tcp_teardown_admin_queue(ctrl, false); in nvme_tcp_error_recovery_work()
2424 nvme_unquiesce_admin_queue(ctrl); in nvme_tcp_error_recovery_work()
2425 nvme_auth_stop(ctrl); in nvme_tcp_error_recovery_work()
2427 if (!nvme_change_ctrl_state(ctrl, NVME_CTRL_CONNECTING)) { in nvme_tcp_error_recovery_work()
2428 /* state change failure is ok if we started ctrl delete */ in nvme_tcp_error_recovery_work()
2429 enum nvme_ctrl_state state = nvme_ctrl_state(ctrl); in nvme_tcp_error_recovery_work()
2436 nvme_tcp_reconnect_or_remove(ctrl, 0); in nvme_tcp_error_recovery_work()
2439 static void nvme_tcp_teardown_ctrl(struct nvme_ctrl *ctrl, bool shutdown) in nvme_tcp_teardown_ctrl() argument
2441 nvme_tcp_teardown_io_queues(ctrl, shutdown); in nvme_tcp_teardown_ctrl()
2442 nvme_quiesce_admin_queue(ctrl); in nvme_tcp_teardown_ctrl()
2443 nvme_disable_ctrl(ctrl, shutdown); in nvme_tcp_teardown_ctrl()
2444 nvme_tcp_teardown_admin_queue(ctrl, shutdown); in nvme_tcp_teardown_ctrl()
2447 static void nvme_tcp_delete_ctrl(struct nvme_ctrl *ctrl) in nvme_tcp_delete_ctrl() argument
2449 nvme_tcp_teardown_ctrl(ctrl, true); in nvme_tcp_delete_ctrl()
2454 struct nvme_ctrl *ctrl = in nvme_reset_ctrl_work() local
2458 nvme_stop_ctrl(ctrl); in nvme_reset_ctrl_work()
2459 nvme_tcp_teardown_ctrl(ctrl, false); in nvme_reset_ctrl_work()
2461 if (!nvme_change_ctrl_state(ctrl, NVME_CTRL_CONNECTING)) { in nvme_reset_ctrl_work()
2462 /* state change failure is ok if we started ctrl delete */ in nvme_reset_ctrl_work()
2463 enum nvme_ctrl_state state = nvme_ctrl_state(ctrl); in nvme_reset_ctrl_work()
2470 ret = nvme_tcp_setup_ctrl(ctrl, false); in nvme_reset_ctrl_work()
2477 ++ctrl->nr_reconnects; in nvme_reset_ctrl_work()
2478 nvme_tcp_reconnect_or_remove(ctrl, ret); in nvme_reset_ctrl_work()
2481 static void nvme_tcp_stop_ctrl(struct nvme_ctrl *ctrl) in nvme_tcp_stop_ctrl() argument
2483 flush_work(&to_tcp_ctrl(ctrl)->err_work); in nvme_tcp_stop_ctrl()
2484 cancel_delayed_work_sync(&to_tcp_ctrl(ctrl)->connect_work); in nvme_tcp_stop_ctrl()
2489 struct nvme_tcp_ctrl *ctrl = to_tcp_ctrl(nctrl); in nvme_tcp_free_ctrl() local
2491 if (list_empty(&ctrl->list)) in nvme_tcp_free_ctrl()
2495 list_del(&ctrl->list); in nvme_tcp_free_ctrl()
2498 nvmf_free_options(nctrl->opts); in nvme_tcp_free_ctrl()
2500 kfree(ctrl->queues); in nvme_tcp_free_ctrl()
2501 kfree(ctrl); in nvme_tcp_free_ctrl()
2506 struct nvme_sgl_desc *sg = &c->common.dptr.sgl; in nvme_tcp_set_sg_null()
2508 sg->addr = 0; in nvme_tcp_set_sg_null()
2509 sg->length = 0; in nvme_tcp_set_sg_null()
2510 sg->type = (NVME_TRANSPORT_SGL_DATA_DESC << 4) | in nvme_tcp_set_sg_null()
2517 struct nvme_sgl_desc *sg = &c->common.dptr.sgl; in nvme_tcp_set_sg_inline()
2519 sg->addr = cpu_to_le64(queue->ctrl->ctrl.icdoff); in nvme_tcp_set_sg_inline()
2520 sg->length = cpu_to_le32(data_len); in nvme_tcp_set_sg_inline()
2521 sg->type = (NVME_SGL_FMT_DATA_DESC << 4) | NVME_SGL_FMT_OFFSET; in nvme_tcp_set_sg_inline()
2527 struct nvme_sgl_desc *sg = &c->common.dptr.sgl; in nvme_tcp_set_sg_host_data()
2529 sg->addr = 0; in nvme_tcp_set_sg_host_data()
2530 sg->length = cpu_to_le32(data_len); in nvme_tcp_set_sg_host_data()
2531 sg->type = (NVME_TRANSPORT_SGL_DATA_DESC << 4) | in nvme_tcp_set_sg_host_data()
2537 struct nvme_tcp_ctrl *ctrl = to_tcp_ctrl(arg); in nvme_tcp_submit_async_event() local
2538 struct nvme_tcp_queue *queue = &ctrl->queues[0]; in nvme_tcp_submit_async_event()
2539 struct nvme_tcp_cmd_pdu *pdu = ctrl->async_req.pdu; in nvme_tcp_submit_async_event()
2540 struct nvme_command *cmd = &pdu->cmd; in nvme_tcp_submit_async_event()
2544 pdu->hdr.type = nvme_tcp_cmd; in nvme_tcp_submit_async_event()
2545 if (queue->hdr_digest) in nvme_tcp_submit_async_event()
2546 pdu->hdr.flags |= NVME_TCP_F_HDGST; in nvme_tcp_submit_async_event()
2547 pdu->hdr.hlen = sizeof(*pdu); in nvme_tcp_submit_async_event()
2548 pdu->hdr.plen = cpu_to_le32(pdu->hdr.hlen + hdgst); in nvme_tcp_submit_async_event()
2550 cmd->common.opcode = nvme_admin_async_event; in nvme_tcp_submit_async_event()
2551 cmd->common.command_id = NVME_AQ_BLK_MQ_DEPTH; in nvme_tcp_submit_async_event()
2552 cmd->common.flags |= NVME_CMD_SGL_METABUF; in nvme_tcp_submit_async_event()
2555 ctrl->async_req.state = NVME_TCP_SEND_CMD_PDU; in nvme_tcp_submit_async_event()
2556 ctrl->async_req.offset = 0; in nvme_tcp_submit_async_event()
2557 ctrl->async_req.curr_bio = NULL; in nvme_tcp_submit_async_event()
2558 ctrl->async_req.data_len = 0; in nvme_tcp_submit_async_event()
2560 nvme_tcp_queue_request(&ctrl->async_req, true, true); in nvme_tcp_submit_async_event()
2566 struct nvme_ctrl *ctrl = &req->queue->ctrl->ctrl; in nvme_tcp_complete_timed_out() local
2568 nvme_tcp_stop_queue(ctrl, nvme_tcp_queue_id(req->queue)); in nvme_tcp_complete_timed_out()
2575 struct nvme_ctrl *ctrl = &req->queue->ctrl->ctrl; in nvme_tcp_timeout() local
2577 struct nvme_command *cmd = &pdu->cmd; in nvme_tcp_timeout()
2578 int qid = nvme_tcp_queue_id(req->queue); in nvme_tcp_timeout()
2580 dev_warn(ctrl->device, in nvme_tcp_timeout()
2582 rq->tag, nvme_cid(rq), pdu->hdr.type, cmd->common.opcode, in nvme_tcp_timeout()
2585 if (nvme_ctrl_state(ctrl) != NVME_CTRL_LIVE) { in nvme_tcp_timeout()
2590 * - ctrl disable/shutdown fabrics requests in nvme_tcp_timeout()
2591 * - connect requests in nvme_tcp_timeout()
2592 * - initialization admin requests in nvme_tcp_timeout()
2593 * - I/O requests that entered after unquiescing and in nvme_tcp_timeout()
2607 nvme_tcp_error_recovery(ctrl); in nvme_tcp_timeout()
2616 struct nvme_command *c = &pdu->cmd; in nvme_tcp_map_data()
2618 c->common.flags |= NVME_CMD_SGL_METABUF; in nvme_tcp_map_data()
2623 req->data_len <= nvme_tcp_inline_data_size(req)) in nvme_tcp_map_data()
2624 nvme_tcp_set_sg_inline(queue, c, req->data_len); in nvme_tcp_map_data()
2626 nvme_tcp_set_sg_host_data(c, req->data_len); in nvme_tcp_map_data()
2636 struct nvme_tcp_queue *queue = req->queue; in nvme_tcp_setup_cmd_pdu()
2644 req->state = NVME_TCP_SEND_CMD_PDU; in nvme_tcp_setup_cmd_pdu()
2645 req->status = cpu_to_le16(NVME_SC_SUCCESS); in nvme_tcp_setup_cmd_pdu()
2646 req->offset = 0; in nvme_tcp_setup_cmd_pdu()
2647 req->data_sent = 0; in nvme_tcp_setup_cmd_pdu()
2648 req->pdu_len = 0; in nvme_tcp_setup_cmd_pdu()
2649 req->pdu_sent = 0; in nvme_tcp_setup_cmd_pdu()
2650 req->h2cdata_left = 0; in nvme_tcp_setup_cmd_pdu()
2651 req->data_len = blk_rq_nr_phys_segments(rq) ? in nvme_tcp_setup_cmd_pdu()
2653 req->curr_bio = rq->bio; in nvme_tcp_setup_cmd_pdu()
2654 if (req->curr_bio && req->data_len) in nvme_tcp_setup_cmd_pdu()
2658 req->data_len <= nvme_tcp_inline_data_size(req)) in nvme_tcp_setup_cmd_pdu()
2659 req->pdu_len = req->data_len; in nvme_tcp_setup_cmd_pdu()
2661 pdu->hdr.type = nvme_tcp_cmd; in nvme_tcp_setup_cmd_pdu()
2662 pdu->hdr.flags = 0; in nvme_tcp_setup_cmd_pdu()
2663 if (queue->hdr_digest) in nvme_tcp_setup_cmd_pdu()
2664 pdu->hdr.flags |= NVME_TCP_F_HDGST; in nvme_tcp_setup_cmd_pdu()
2665 if (queue->data_digest && req->pdu_len) { in nvme_tcp_setup_cmd_pdu()
2666 pdu->hdr.flags |= NVME_TCP_F_DDGST; in nvme_tcp_setup_cmd_pdu()
2669 pdu->hdr.hlen = sizeof(*pdu); in nvme_tcp_setup_cmd_pdu()
2670 pdu->hdr.pdo = req->pdu_len ? pdu->hdr.hlen + hdgst : 0; in nvme_tcp_setup_cmd_pdu()
2671 pdu->hdr.plen = in nvme_tcp_setup_cmd_pdu()
2672 cpu_to_le32(pdu->hdr.hlen + hdgst + req->pdu_len + ddgst); in nvme_tcp_setup_cmd_pdu()
2677 dev_err(queue->ctrl->ctrl.device, in nvme_tcp_setup_cmd_pdu()
2687 struct nvme_tcp_queue *queue = hctx->driver_data; in nvme_tcp_commit_rqs()
2689 if (!llist_empty(&queue->req_list)) in nvme_tcp_commit_rqs()
2690 queue_work_on(queue->io_cpu, nvme_tcp_wq, &queue->io_work); in nvme_tcp_commit_rqs()
2696 struct nvme_ns *ns = hctx->queue->queuedata; in nvme_tcp_queue_rq()
2697 struct nvme_tcp_queue *queue = hctx->driver_data; in nvme_tcp_queue_rq()
2698 struct request *rq = bd->rq; in nvme_tcp_queue_rq()
2700 bool queue_ready = test_bit(NVME_TCP_Q_LIVE, &queue->flags); in nvme_tcp_queue_rq()
2703 if (!nvme_check_ready(&queue->ctrl->ctrl, rq, queue_ready)) in nvme_tcp_queue_rq()
2704 return nvme_fail_nonready_command(&queue->ctrl->ctrl, rq); in nvme_tcp_queue_rq()
2712 nvme_tcp_queue_request(req, true, bd->last); in nvme_tcp_queue_rq()
2719 struct nvme_tcp_ctrl *ctrl = to_tcp_ctrl(set->driver_data); in nvme_tcp_map_queues() local
2721 nvmf_map_queues(set, &ctrl->ctrl, ctrl->io_queues); in nvme_tcp_map_queues()
2726 struct nvme_tcp_queue *queue = hctx->driver_data; in nvme_tcp_poll()
2727 struct sock *sk = queue->sock->sk; in nvme_tcp_poll()
2730 if (!test_bit(NVME_TCP_Q_LIVE, &queue->flags)) in nvme_tcp_poll()
2733 set_bit(NVME_TCP_Q_POLLING, &queue->flags); in nvme_tcp_poll()
2734 if (sk_can_busy_loop(sk) && skb_queue_empty_lockless(&sk->sk_receive_queue)) in nvme_tcp_poll()
2737 clear_bit(NVME_TCP_Q_POLLING, &queue->flags); in nvme_tcp_poll()
2738 return ret < 0 ? ret : queue->nr_cqe; in nvme_tcp_poll()
2741 static int nvme_tcp_get_address(struct nvme_ctrl *ctrl, char *buf, int size) in nvme_tcp_get_address() argument
2743 struct nvme_tcp_queue *queue = &to_tcp_ctrl(ctrl)->queues[0]; in nvme_tcp_get_address()
2745 int ret, len; in nvme_tcp_get_address() local
2747 len = nvmf_get_address(ctrl, buf, size); in nvme_tcp_get_address()
2749 if (!test_bit(NVME_TCP_Q_LIVE, &queue->flags)) in nvme_tcp_get_address()
2750 return len; in nvme_tcp_get_address()
2752 mutex_lock(&queue->queue_lock); in nvme_tcp_get_address()
2754 ret = kernel_getsockname(queue->sock, (struct sockaddr *)&src_addr); in nvme_tcp_get_address()
2756 if (len > 0) in nvme_tcp_get_address()
2757 len--; /* strip trailing newline */ in nvme_tcp_get_address()
2758 len += scnprintf(buf + len, size - len, "%ssrc_addr=%pISc\n", in nvme_tcp_get_address()
2759 (len) ? "," : "", &src_addr); in nvme_tcp_get_address()
2762 mutex_unlock(&queue->queue_lock); in nvme_tcp_get_address()
2764 return len; in nvme_tcp_get_address()
2806 struct nvme_tcp_ctrl *ctrl; in nvme_tcp_existing_controller() local
2810 list_for_each_entry(ctrl, &nvme_tcp_ctrl_list, list) { in nvme_tcp_existing_controller()
2811 found = nvmf_ip_options_match(&ctrl->ctrl, opts); in nvme_tcp_existing_controller()
2823 struct nvme_tcp_ctrl *ctrl; in nvme_tcp_alloc_ctrl() local
2826 ctrl = kzalloc(sizeof(*ctrl), GFP_KERNEL); in nvme_tcp_alloc_ctrl()
2827 if (!ctrl) in nvme_tcp_alloc_ctrl()
2828 return ERR_PTR(-ENOMEM); in nvme_tcp_alloc_ctrl()
2830 INIT_LIST_HEAD(&ctrl->list); in nvme_tcp_alloc_ctrl()
2831 ctrl->ctrl.opts = opts; in nvme_tcp_alloc_ctrl()
2832 ctrl->ctrl.queue_count = opts->nr_io_queues + opts->nr_write_queues + in nvme_tcp_alloc_ctrl()
2833 opts->nr_poll_queues + 1; in nvme_tcp_alloc_ctrl()
2834 ctrl->ctrl.sqsize = opts->queue_size - 1; in nvme_tcp_alloc_ctrl()
2835 ctrl->ctrl.kato = opts->kato; in nvme_tcp_alloc_ctrl()
2837 INIT_DELAYED_WORK(&ctrl->connect_work, in nvme_tcp_alloc_ctrl()
2839 INIT_WORK(&ctrl->err_work, nvme_tcp_error_recovery_work); in nvme_tcp_alloc_ctrl()
2840 INIT_WORK(&ctrl->ctrl.reset_work, nvme_reset_ctrl_work); in nvme_tcp_alloc_ctrl()
2842 if (!(opts->mask & NVMF_OPT_TRSVCID)) { in nvme_tcp_alloc_ctrl()
2843 opts->trsvcid = in nvme_tcp_alloc_ctrl()
2845 if (!opts->trsvcid) { in nvme_tcp_alloc_ctrl()
2846 ret = -ENOMEM; in nvme_tcp_alloc_ctrl()
2849 opts->mask |= NVMF_OPT_TRSVCID; in nvme_tcp_alloc_ctrl()
2853 opts->traddr, opts->trsvcid, &ctrl->addr); in nvme_tcp_alloc_ctrl()
2856 opts->traddr, opts->trsvcid); in nvme_tcp_alloc_ctrl()
2860 if (opts->mask & NVMF_OPT_HOST_TRADDR) { in nvme_tcp_alloc_ctrl()
2862 opts->host_traddr, NULL, &ctrl->src_addr); in nvme_tcp_alloc_ctrl()
2865 opts->host_traddr); in nvme_tcp_alloc_ctrl()
2870 if (opts->mask & NVMF_OPT_HOST_IFACE) { in nvme_tcp_alloc_ctrl()
2871 if (!__dev_get_by_name(&init_net, opts->host_iface)) { in nvme_tcp_alloc_ctrl()
2873 opts->host_iface); in nvme_tcp_alloc_ctrl()
2874 ret = -ENODEV; in nvme_tcp_alloc_ctrl()
2879 if (!opts->duplicate_connect && nvme_tcp_existing_controller(opts)) { in nvme_tcp_alloc_ctrl()
2880 ret = -EALREADY; in nvme_tcp_alloc_ctrl()
2884 ctrl->queues = kcalloc(ctrl->ctrl.queue_count, sizeof(*ctrl->queues), in nvme_tcp_alloc_ctrl()
2886 if (!ctrl->queues) { in nvme_tcp_alloc_ctrl()
2887 ret = -ENOMEM; in nvme_tcp_alloc_ctrl()
2891 ret = nvme_init_ctrl(&ctrl->ctrl, dev, &nvme_tcp_ctrl_ops, 0); in nvme_tcp_alloc_ctrl()
2895 return ctrl; in nvme_tcp_alloc_ctrl()
2897 kfree(ctrl->queues); in nvme_tcp_alloc_ctrl()
2899 kfree(ctrl); in nvme_tcp_alloc_ctrl()
2906 struct nvme_tcp_ctrl *ctrl; in nvme_tcp_create_ctrl() local
2909 ctrl = nvme_tcp_alloc_ctrl(dev, opts); in nvme_tcp_create_ctrl()
2910 if (IS_ERR(ctrl)) in nvme_tcp_create_ctrl()
2911 return ERR_CAST(ctrl); in nvme_tcp_create_ctrl()
2913 ret = nvme_add_ctrl(&ctrl->ctrl); in nvme_tcp_create_ctrl()
2917 if (!nvme_change_ctrl_state(&ctrl->ctrl, NVME_CTRL_CONNECTING)) { in nvme_tcp_create_ctrl()
2919 ret = -EINTR; in nvme_tcp_create_ctrl()
2923 ret = nvme_tcp_setup_ctrl(&ctrl->ctrl, true); in nvme_tcp_create_ctrl()
2927 dev_info(ctrl->ctrl.device, "new ctrl: NQN \"%s\", addr %pISp, hostnqn: %s\n", in nvme_tcp_create_ctrl()
2928 nvmf_ctrl_subsysnqn(&ctrl->ctrl), &ctrl->addr, opts->host->nqn); in nvme_tcp_create_ctrl()
2931 list_add_tail(&ctrl->list, &nvme_tcp_ctrl_list); in nvme_tcp_create_ctrl()
2934 return &ctrl->ctrl; in nvme_tcp_create_ctrl()
2937 nvme_uninit_ctrl(&ctrl->ctrl); in nvme_tcp_create_ctrl()
2939 nvme_put_ctrl(&ctrl->ctrl); in nvme_tcp_create_ctrl()
2941 ret = -EIO; in nvme_tcp_create_ctrl()
2977 return -ENOMEM; in nvme_tcp_init_module()
2988 struct nvme_tcp_ctrl *ctrl; in nvme_tcp_cleanup_module() local
2993 list_for_each_entry(ctrl, &nvme_tcp_ctrl_list, list) in nvme_tcp_cleanup_module()
2994 nvme_delete_ctrl(&ctrl->ctrl); in nvme_tcp_cleanup_module()