Lines Matching +full:ctrl +full:- +full:len
1 // SPDX-License-Identifier: GPL-2.0
11 #include <linux/nvme-tcp.h>
14 #include <linux/blk-mq.h>
26 * A non-zero value being sufficient to indicate general consideration of any
36 * sk_lock -> mmap_lock (page fault) -> fs locks -> sk_lock
37 * because dependencies are tracked for both nvme-tcp and user contexts. Using
38 * a separate class prevents lockdep from conflating nvme-tcp socket use with
39 * user-space socket API use.
46 struct sock *sk = sock->sk; in nvme_tcp_reclassify_socket()
51 switch (sk->sk_family) { in nvme_tcp_reclassify_socket()
53 sock_lock_init_class_and_name(sk, "slock-AF_INET-NVME", in nvme_tcp_reclassify_socket()
55 "sk_lock-AF_INET-NVME", in nvme_tcp_reclassify_socket()
59 sock_lock_init_class_and_name(sk, "slock-AF_INET6-NVME", in nvme_tcp_reclassify_socket()
61 "sk_lock-AF_INET6-NVME", in nvme_tcp_reclassify_socket()
139 struct nvme_tcp_ctrl *ctrl; member
167 struct nvme_ctrl ctrl; member
182 static inline struct nvme_tcp_ctrl *to_tcp_ctrl(struct nvme_ctrl *ctrl) in to_tcp_ctrl() argument
184 return container_of(ctrl, struct nvme_tcp_ctrl, ctrl); in to_tcp_ctrl()
189 return queue - queue->ctrl->queues; in nvme_tcp_queue_id()
197 return queue->ctrl->admin_tag_set.tags[queue_idx]; in nvme_tcp_tagset()
198 return queue->ctrl->tag_set.tags[queue_idx - 1]; in nvme_tcp_tagset()
203 return queue->hdr_digest ? NVME_TCP_DIGEST_LENGTH : 0; in nvme_tcp_hdgst_len()
208 return queue->data_digest ? NVME_TCP_DIGEST_LENGTH : 0; in nvme_tcp_ddgst_len()
213 return req->pdu; in nvme_tcp_req_cmd_pdu()
219 return req->pdu + sizeof(struct nvme_tcp_cmd_pdu) - in nvme_tcp_req_data_pdu()
225 if (nvme_is_fabrics(req->req.cmd)) in nvme_tcp_inline_data_size()
227 return req->queue->cmnd_capsule_len - sizeof(struct nvme_command); in nvme_tcp_inline_data_size()
232 return req == &req->queue->ctrl->async_req; in nvme_tcp_async_req()
244 return rq_data_dir(rq) == WRITE && req->data_len && in nvme_tcp_has_inline_data()
245 req->data_len <= nvme_tcp_inline_data_size(req); in nvme_tcp_has_inline_data()
250 return req->iter.bvec->bv_page; in nvme_tcp_req_cur_page()
255 return req->iter.bvec->bv_offset + req->iter.iov_offset; in nvme_tcp_req_cur_offset()
260 return min_t(size_t, iov_iter_single_seg_count(&req->iter), in nvme_tcp_req_cur_length()
261 req->pdu_len - req->pdu_sent); in nvme_tcp_req_cur_length()
267 req->pdu_len - req->pdu_sent : 0; in nvme_tcp_pdu_data_left()
271 int len) in nvme_tcp_pdu_last_send() argument
273 return nvme_tcp_pdu_data_left(req) <= len; in nvme_tcp_pdu_last_send()
285 if (rq->rq_flags & RQF_SPECIAL_PAYLOAD) { in nvme_tcp_init_iter()
286 vec = &rq->special_vec; in nvme_tcp_init_iter()
291 struct bio *bio = req->curr_bio; in nvme_tcp_init_iter()
295 vec = __bvec_iter_bvec(bio->bi_io_vec, bio->bi_iter); in nvme_tcp_init_iter()
300 size = bio->bi_iter.bi_size; in nvme_tcp_init_iter()
301 offset = bio->bi_iter.bi_bvec_done; in nvme_tcp_init_iter()
304 iov_iter_bvec(&req->iter, dir, vec, nr_bvec, size); in nvme_tcp_init_iter()
305 req->iter.iov_offset = offset; in nvme_tcp_init_iter()
309 int len) in nvme_tcp_advance_req() argument
311 req->data_sent += len; in nvme_tcp_advance_req()
312 req->pdu_sent += len; in nvme_tcp_advance_req()
313 iov_iter_advance(&req->iter, len); in nvme_tcp_advance_req()
314 if (!iov_iter_count(&req->iter) && in nvme_tcp_advance_req()
315 req->data_sent < req->data_len) { in nvme_tcp_advance_req()
316 req->curr_bio = req->curr_bio->bi_next; in nvme_tcp_advance_req()
333 return !list_empty(&queue->send_list) || in nvme_tcp_queue_more()
334 !llist_empty(&queue->req_list); in nvme_tcp_queue_more()
340 struct nvme_tcp_queue *queue = req->queue; in nvme_tcp_queue_request()
343 empty = llist_add(&req->lentry, &queue->req_list) && in nvme_tcp_queue_request()
344 list_empty(&queue->send_list) && !queue->request; in nvme_tcp_queue_request()
351 if (queue->io_cpu == raw_smp_processor_id() && in nvme_tcp_queue_request()
352 sync && empty && mutex_trylock(&queue->send_mutex)) { in nvme_tcp_queue_request()
354 mutex_unlock(&queue->send_mutex); in nvme_tcp_queue_request()
358 queue_work_on(queue->io_cpu, nvme_tcp_wq, &queue->io_work); in nvme_tcp_queue_request()
366 for (node = llist_del_all(&queue->req_list); node; node = node->next) { in nvme_tcp_process_req_list()
368 list_add(&req->entry, &queue->send_list); in nvme_tcp_process_req_list()
377 req = list_first_entry_or_null(&queue->send_list, in nvme_tcp_fetch_request()
381 req = list_first_entry_or_null(&queue->send_list, in nvme_tcp_fetch_request()
387 list_del(&req->entry); in nvme_tcp_fetch_request()
399 struct page *page, off_t off, size_t len) in nvme_tcp_ddgst_update() argument
404 sg_set_page(&sg, page, len, off); in nvme_tcp_ddgst_update()
405 ahash_request_set_crypt(hash, &sg, NULL, len); in nvme_tcp_ddgst_update()
410 void *pdu, size_t len) in nvme_tcp_hdgst() argument
414 sg_init_one(&sg, pdu, len); in nvme_tcp_hdgst()
415 ahash_request_set_crypt(hash, &sg, pdu + len, len); in nvme_tcp_hdgst()
426 if (unlikely(!(hdr->flags & NVME_TCP_F_HDGST))) { in nvme_tcp_verify_hdgst()
427 dev_err(queue->ctrl->ctrl.device, in nvme_tcp_verify_hdgst()
430 return -EPROTO; in nvme_tcp_verify_hdgst()
433 recv_digest = *(__le32 *)(pdu + hdr->hlen); in nvme_tcp_verify_hdgst()
434 nvme_tcp_hdgst(queue->rcv_hash, pdu, pdu_len); in nvme_tcp_verify_hdgst()
435 exp_digest = *(__le32 *)(pdu + hdr->hlen); in nvme_tcp_verify_hdgst()
437 dev_err(queue->ctrl->ctrl.device, in nvme_tcp_verify_hdgst()
440 return -EIO; in nvme_tcp_verify_hdgst()
450 u32 len; in nvme_tcp_check_ddgst() local
452 len = le32_to_cpu(hdr->plen) - hdr->hlen - in nvme_tcp_check_ddgst()
453 ((hdr->flags & NVME_TCP_F_HDGST) ? digest_len : 0); in nvme_tcp_check_ddgst()
455 if (unlikely(len && !(hdr->flags & NVME_TCP_F_DDGST))) { in nvme_tcp_check_ddgst()
456 dev_err(queue->ctrl->ctrl.device, in nvme_tcp_check_ddgst()
459 return -EPROTO; in nvme_tcp_check_ddgst()
461 crypto_ahash_init(queue->rcv_hash); in nvme_tcp_check_ddgst()
471 page_frag_free(req->pdu); in nvme_tcp_exit_request()
478 struct nvme_tcp_ctrl *ctrl = to_tcp_ctrl(set->driver_data); in nvme_tcp_init_request() local
481 int queue_idx = (set == &ctrl->tag_set) ? hctx_idx + 1 : 0; in nvme_tcp_init_request()
482 struct nvme_tcp_queue *queue = &ctrl->queues[queue_idx]; in nvme_tcp_init_request()
485 req->pdu = page_frag_alloc(&queue->pf_cache, in nvme_tcp_init_request()
488 if (!req->pdu) in nvme_tcp_init_request()
489 return -ENOMEM; in nvme_tcp_init_request()
491 pdu = req->pdu; in nvme_tcp_init_request()
492 req->queue = queue; in nvme_tcp_init_request()
493 nvme_req(rq)->ctrl = &ctrl->ctrl; in nvme_tcp_init_request()
494 nvme_req(rq)->cmd = &pdu->cmd; in nvme_tcp_init_request()
502 struct nvme_tcp_ctrl *ctrl = to_tcp_ctrl(data); in nvme_tcp_init_hctx() local
503 struct nvme_tcp_queue *queue = &ctrl->queues[hctx_idx + 1]; in nvme_tcp_init_hctx()
505 hctx->driver_data = queue; in nvme_tcp_init_hctx()
512 struct nvme_tcp_ctrl *ctrl = to_tcp_ctrl(data); in nvme_tcp_init_admin_hctx() local
513 struct nvme_tcp_queue *queue = &ctrl->queues[0]; in nvme_tcp_init_admin_hctx()
515 hctx->driver_data = queue; in nvme_tcp_init_admin_hctx()
522 return (queue->pdu_remaining) ? NVME_TCP_RECV_PDU : in nvme_tcp_recv_state()
523 (queue->ddgst_remaining) ? NVME_TCP_RECV_DDGST : in nvme_tcp_recv_state()
529 queue->pdu_remaining = sizeof(struct nvme_tcp_rsp_pdu) + in nvme_tcp_init_recv_ctx()
531 queue->pdu_offset = 0; in nvme_tcp_init_recv_ctx()
532 queue->data_remaining = -1; in nvme_tcp_init_recv_ctx()
533 queue->ddgst_remaining = 0; in nvme_tcp_init_recv_ctx()
536 static void nvme_tcp_error_recovery(struct nvme_ctrl *ctrl) in nvme_tcp_error_recovery() argument
538 if (!nvme_change_ctrl_state(ctrl, NVME_CTRL_RESETTING)) in nvme_tcp_error_recovery()
541 dev_warn(ctrl->device, "starting error recovery\n"); in nvme_tcp_error_recovery()
542 queue_work(nvme_reset_wq, &to_tcp_ctrl(ctrl)->err_work); in nvme_tcp_error_recovery()
551 rq = nvme_find_rq(nvme_tcp_tagset(queue), cqe->command_id); in nvme_tcp_process_nvme_cqe()
553 dev_err(queue->ctrl->ctrl.device, in nvme_tcp_process_nvme_cqe()
555 cqe->command_id, nvme_tcp_queue_id(queue)); in nvme_tcp_process_nvme_cqe()
556 nvme_tcp_error_recovery(&queue->ctrl->ctrl); in nvme_tcp_process_nvme_cqe()
557 return -EINVAL; in nvme_tcp_process_nvme_cqe()
561 if (req->status == cpu_to_le16(NVME_SC_SUCCESS)) in nvme_tcp_process_nvme_cqe()
562 req->status = cqe->status; in nvme_tcp_process_nvme_cqe()
564 if (!nvme_try_complete_req(rq, req->status, cqe->result)) in nvme_tcp_process_nvme_cqe()
566 queue->nr_cqe++; in nvme_tcp_process_nvme_cqe()
576 rq = nvme_find_rq(nvme_tcp_tagset(queue), pdu->command_id); in nvme_tcp_handle_c2h_data()
578 dev_err(queue->ctrl->ctrl.device, in nvme_tcp_handle_c2h_data()
580 pdu->command_id, nvme_tcp_queue_id(queue)); in nvme_tcp_handle_c2h_data()
581 return -ENOENT; in nvme_tcp_handle_c2h_data()
585 dev_err(queue->ctrl->ctrl.device, in nvme_tcp_handle_c2h_data()
587 nvme_tcp_queue_id(queue), rq->tag); in nvme_tcp_handle_c2h_data()
588 return -EIO; in nvme_tcp_handle_c2h_data()
591 queue->data_remaining = le32_to_cpu(pdu->data_length); in nvme_tcp_handle_c2h_data()
593 if (pdu->hdr.flags & NVME_TCP_F_DATA_SUCCESS && in nvme_tcp_handle_c2h_data()
594 unlikely(!(pdu->hdr.flags & NVME_TCP_F_DATA_LAST))) { in nvme_tcp_handle_c2h_data()
595 dev_err(queue->ctrl->ctrl.device, in nvme_tcp_handle_c2h_data()
597 nvme_tcp_queue_id(queue), rq->tag); in nvme_tcp_handle_c2h_data()
598 nvme_tcp_error_recovery(&queue->ctrl->ctrl); in nvme_tcp_handle_c2h_data()
599 return -EPROTO; in nvme_tcp_handle_c2h_data()
608 struct nvme_completion *cqe = &pdu->cqe; in nvme_tcp_handle_comp()
618 cqe->command_id))) in nvme_tcp_handle_comp()
619 nvme_complete_async_event(&queue->ctrl->ctrl, cqe->status, in nvme_tcp_handle_comp()
620 &cqe->result); in nvme_tcp_handle_comp()
630 struct nvme_tcp_queue *queue = req->queue; in nvme_tcp_setup_h2c_data_pdu()
632 u32 h2cdata_sent = req->pdu_len; in nvme_tcp_setup_h2c_data_pdu()
636 req->state = NVME_TCP_SEND_H2C_PDU; in nvme_tcp_setup_h2c_data_pdu()
637 req->offset = 0; in nvme_tcp_setup_h2c_data_pdu()
638 req->pdu_len = min(req->h2cdata_left, queue->maxh2cdata); in nvme_tcp_setup_h2c_data_pdu()
639 req->pdu_sent = 0; in nvme_tcp_setup_h2c_data_pdu()
640 req->h2cdata_left -= req->pdu_len; in nvme_tcp_setup_h2c_data_pdu()
641 req->h2cdata_offset += h2cdata_sent; in nvme_tcp_setup_h2c_data_pdu()
644 data->hdr.type = nvme_tcp_h2c_data; in nvme_tcp_setup_h2c_data_pdu()
645 if (!req->h2cdata_left) in nvme_tcp_setup_h2c_data_pdu()
646 data->hdr.flags = NVME_TCP_F_DATA_LAST; in nvme_tcp_setup_h2c_data_pdu()
647 if (queue->hdr_digest) in nvme_tcp_setup_h2c_data_pdu()
648 data->hdr.flags |= NVME_TCP_F_HDGST; in nvme_tcp_setup_h2c_data_pdu()
649 if (queue->data_digest) in nvme_tcp_setup_h2c_data_pdu()
650 data->hdr.flags |= NVME_TCP_F_DDGST; in nvme_tcp_setup_h2c_data_pdu()
651 data->hdr.hlen = sizeof(*data); in nvme_tcp_setup_h2c_data_pdu()
652 data->hdr.pdo = data->hdr.hlen + hdgst; in nvme_tcp_setup_h2c_data_pdu()
653 data->hdr.plen = in nvme_tcp_setup_h2c_data_pdu()
654 cpu_to_le32(data->hdr.hlen + hdgst + req->pdu_len + ddgst); in nvme_tcp_setup_h2c_data_pdu()
655 data->ttag = req->ttag; in nvme_tcp_setup_h2c_data_pdu()
656 data->command_id = nvme_cid(rq); in nvme_tcp_setup_h2c_data_pdu()
657 data->data_offset = cpu_to_le32(req->h2cdata_offset); in nvme_tcp_setup_h2c_data_pdu()
658 data->data_length = cpu_to_le32(req->pdu_len); in nvme_tcp_setup_h2c_data_pdu()
666 u32 r2t_length = le32_to_cpu(pdu->r2t_length); in nvme_tcp_handle_r2t()
667 u32 r2t_offset = le32_to_cpu(pdu->r2t_offset); in nvme_tcp_handle_r2t()
669 rq = nvme_find_rq(nvme_tcp_tagset(queue), pdu->command_id); in nvme_tcp_handle_r2t()
671 dev_err(queue->ctrl->ctrl.device, in nvme_tcp_handle_r2t()
673 pdu->command_id, nvme_tcp_queue_id(queue)); in nvme_tcp_handle_r2t()
674 return -ENOENT; in nvme_tcp_handle_r2t()
679 dev_err(queue->ctrl->ctrl.device, in nvme_tcp_handle_r2t()
680 "req %d r2t len is %u, probably a bug...\n", in nvme_tcp_handle_r2t()
681 rq->tag, r2t_length); in nvme_tcp_handle_r2t()
682 return -EPROTO; in nvme_tcp_handle_r2t()
685 if (unlikely(req->data_sent + r2t_length > req->data_len)) { in nvme_tcp_handle_r2t()
686 dev_err(queue->ctrl->ctrl.device, in nvme_tcp_handle_r2t()
687 "req %d r2t len %u exceeded data len %u (%zu sent)\n", in nvme_tcp_handle_r2t()
688 rq->tag, r2t_length, req->data_len, req->data_sent); in nvme_tcp_handle_r2t()
689 return -EPROTO; in nvme_tcp_handle_r2t()
692 if (unlikely(r2t_offset < req->data_sent)) { in nvme_tcp_handle_r2t()
693 dev_err(queue->ctrl->ctrl.device, in nvme_tcp_handle_r2t()
695 rq->tag, r2t_offset, req->data_sent); in nvme_tcp_handle_r2t()
696 return -EPROTO; in nvme_tcp_handle_r2t()
699 req->pdu_len = 0; in nvme_tcp_handle_r2t()
700 req->h2cdata_left = r2t_length; in nvme_tcp_handle_r2t()
701 req->h2cdata_offset = r2t_offset; in nvme_tcp_handle_r2t()
702 req->ttag = pdu->ttag; in nvme_tcp_handle_r2t()
711 unsigned int *offset, size_t *len) in nvme_tcp_recv_pdu() argument
714 char *pdu = queue->pdu; in nvme_tcp_recv_pdu()
715 size_t rcv_len = min_t(size_t, *len, queue->pdu_remaining); in nvme_tcp_recv_pdu()
719 &pdu[queue->pdu_offset], rcv_len); in nvme_tcp_recv_pdu()
723 queue->pdu_remaining -= rcv_len; in nvme_tcp_recv_pdu()
724 queue->pdu_offset += rcv_len; in nvme_tcp_recv_pdu()
726 *len -= rcv_len; in nvme_tcp_recv_pdu()
727 if (queue->pdu_remaining) in nvme_tcp_recv_pdu()
730 hdr = queue->pdu; in nvme_tcp_recv_pdu()
731 if (queue->hdr_digest) { in nvme_tcp_recv_pdu()
732 ret = nvme_tcp_verify_hdgst(queue, queue->pdu, hdr->hlen); in nvme_tcp_recv_pdu()
738 if (queue->data_digest) { in nvme_tcp_recv_pdu()
739 ret = nvme_tcp_check_ddgst(queue, queue->pdu); in nvme_tcp_recv_pdu()
744 switch (hdr->type) { in nvme_tcp_recv_pdu()
746 return nvme_tcp_handle_c2h_data(queue, (void *)queue->pdu); in nvme_tcp_recv_pdu()
749 return nvme_tcp_handle_comp(queue, (void *)queue->pdu); in nvme_tcp_recv_pdu()
752 return nvme_tcp_handle_r2t(queue, (void *)queue->pdu); in nvme_tcp_recv_pdu()
754 dev_err(queue->ctrl->ctrl.device, in nvme_tcp_recv_pdu()
755 "unsupported pdu type (%d)\n", hdr->type); in nvme_tcp_recv_pdu()
756 return -EINVAL; in nvme_tcp_recv_pdu()
769 unsigned int *offset, size_t *len) in nvme_tcp_recv_data() argument
771 struct nvme_tcp_data_pdu *pdu = (void *)queue->pdu; in nvme_tcp_recv_data()
773 nvme_cid_to_rq(nvme_tcp_tagset(queue), pdu->command_id); in nvme_tcp_recv_data()
779 recv_len = min_t(size_t, *len, queue->data_remaining); in nvme_tcp_recv_data()
783 if (!iov_iter_count(&req->iter)) { in nvme_tcp_recv_data()
784 req->curr_bio = req->curr_bio->bi_next; in nvme_tcp_recv_data()
790 if (!req->curr_bio) { in nvme_tcp_recv_data()
791 dev_err(queue->ctrl->ctrl.device, in nvme_tcp_recv_data()
793 nvme_tcp_queue_id(queue), rq->tag); in nvme_tcp_recv_data()
795 return -EIO; in nvme_tcp_recv_data()
802 iov_iter_count(&req->iter)); in nvme_tcp_recv_data()
804 if (queue->data_digest) in nvme_tcp_recv_data()
806 &req->iter, recv_len, queue->rcv_hash); in nvme_tcp_recv_data()
809 &req->iter, recv_len); in nvme_tcp_recv_data()
811 dev_err(queue->ctrl->ctrl.device, in nvme_tcp_recv_data()
813 nvme_tcp_queue_id(queue), rq->tag); in nvme_tcp_recv_data()
817 *len -= recv_len; in nvme_tcp_recv_data()
819 queue->data_remaining -= recv_len; in nvme_tcp_recv_data()
822 if (!queue->data_remaining) { in nvme_tcp_recv_data()
823 if (queue->data_digest) { in nvme_tcp_recv_data()
824 nvme_tcp_ddgst_final(queue->rcv_hash, &queue->exp_ddgst); in nvme_tcp_recv_data()
825 queue->ddgst_remaining = NVME_TCP_DIGEST_LENGTH; in nvme_tcp_recv_data()
827 if (pdu->hdr.flags & NVME_TCP_F_DATA_SUCCESS) { in nvme_tcp_recv_data()
829 le16_to_cpu(req->status)); in nvme_tcp_recv_data()
830 queue->nr_cqe++; in nvme_tcp_recv_data()
840 struct sk_buff *skb, unsigned int *offset, size_t *len) in nvme_tcp_recv_ddgst() argument
842 struct nvme_tcp_data_pdu *pdu = (void *)queue->pdu; in nvme_tcp_recv_ddgst()
843 char *ddgst = (char *)&queue->recv_ddgst; in nvme_tcp_recv_ddgst()
844 size_t recv_len = min_t(size_t, *len, queue->ddgst_remaining); in nvme_tcp_recv_ddgst()
845 off_t off = NVME_TCP_DIGEST_LENGTH - queue->ddgst_remaining; in nvme_tcp_recv_ddgst()
852 queue->ddgst_remaining -= recv_len; in nvme_tcp_recv_ddgst()
854 *len -= recv_len; in nvme_tcp_recv_ddgst()
855 if (queue->ddgst_remaining) in nvme_tcp_recv_ddgst()
858 if (queue->recv_ddgst != queue->exp_ddgst) { in nvme_tcp_recv_ddgst()
860 pdu->command_id); in nvme_tcp_recv_ddgst()
863 req->status = cpu_to_le16(NVME_SC_DATA_XFER_ERROR); in nvme_tcp_recv_ddgst()
865 dev_err(queue->ctrl->ctrl.device, in nvme_tcp_recv_ddgst()
867 le32_to_cpu(queue->recv_ddgst), in nvme_tcp_recv_ddgst()
868 le32_to_cpu(queue->exp_ddgst)); in nvme_tcp_recv_ddgst()
871 if (pdu->hdr.flags & NVME_TCP_F_DATA_SUCCESS) { in nvme_tcp_recv_ddgst()
873 pdu->command_id); in nvme_tcp_recv_ddgst()
876 nvme_tcp_end_request(rq, le16_to_cpu(req->status)); in nvme_tcp_recv_ddgst()
877 queue->nr_cqe++; in nvme_tcp_recv_ddgst()
885 unsigned int offset, size_t len) in nvme_tcp_recv_skb() argument
887 struct nvme_tcp_queue *queue = desc->arg.data; in nvme_tcp_recv_skb()
888 size_t consumed = len; in nvme_tcp_recv_skb()
891 if (unlikely(!queue->rd_enabled)) in nvme_tcp_recv_skb()
892 return -EFAULT; in nvme_tcp_recv_skb()
894 while (len) { in nvme_tcp_recv_skb()
897 result = nvme_tcp_recv_pdu(queue, skb, &offset, &len); in nvme_tcp_recv_skb()
900 result = nvme_tcp_recv_data(queue, skb, &offset, &len); in nvme_tcp_recv_skb()
903 result = nvme_tcp_recv_ddgst(queue, skb, &offset, &len); in nvme_tcp_recv_skb()
906 result = -EFAULT; in nvme_tcp_recv_skb()
909 dev_err(queue->ctrl->ctrl.device, in nvme_tcp_recv_skb()
911 queue->rd_enabled = false; in nvme_tcp_recv_skb()
912 nvme_tcp_error_recovery(&queue->ctrl->ctrl); in nvme_tcp_recv_skb()
926 read_lock_bh(&sk->sk_callback_lock); in nvme_tcp_data_ready()
927 queue = sk->sk_user_data; in nvme_tcp_data_ready()
928 if (likely(queue && queue->rd_enabled) && in nvme_tcp_data_ready()
929 !test_bit(NVME_TCP_Q_POLLING, &queue->flags)) in nvme_tcp_data_ready()
930 queue_work_on(queue->io_cpu, nvme_tcp_wq, &queue->io_work); in nvme_tcp_data_ready()
931 read_unlock_bh(&sk->sk_callback_lock); in nvme_tcp_data_ready()
938 read_lock_bh(&sk->sk_callback_lock); in nvme_tcp_write_space()
939 queue = sk->sk_user_data; in nvme_tcp_write_space()
941 clear_bit(SOCK_NOSPACE, &sk->sk_socket->flags); in nvme_tcp_write_space()
942 queue_work_on(queue->io_cpu, nvme_tcp_wq, &queue->io_work); in nvme_tcp_write_space()
944 read_unlock_bh(&sk->sk_callback_lock); in nvme_tcp_write_space()
951 read_lock_bh(&sk->sk_callback_lock); in nvme_tcp_state_change()
952 queue = sk->sk_user_data; in nvme_tcp_state_change()
956 switch (sk->sk_state) { in nvme_tcp_state_change()
962 nvme_tcp_error_recovery(&queue->ctrl->ctrl); in nvme_tcp_state_change()
965 dev_info(queue->ctrl->ctrl.device, in nvme_tcp_state_change()
967 nvme_tcp_queue_id(queue), sk->sk_state); in nvme_tcp_state_change()
970 queue->state_change(sk); in nvme_tcp_state_change()
972 read_unlock_bh(&sk->sk_callback_lock); in nvme_tcp_state_change()
977 queue->request = NULL; in nvme_tcp_done_send_req()
985 nvme_complete_async_event(&req->queue->ctrl->ctrl, in nvme_tcp_fail_request()
995 struct nvme_tcp_queue *queue = req->queue; in nvme_tcp_try_send_data()
996 int req_data_len = req->data_len; in nvme_tcp_try_send_data()
997 u32 h2cdata_left = req->h2cdata_left; in nvme_tcp_try_send_data()
1006 size_t len = nvme_tcp_req_cur_length(req); in nvme_tcp_try_send_data() local
1007 bool last = nvme_tcp_pdu_last_send(req, len); in nvme_tcp_try_send_data()
1008 int req_data_sent = req->data_sent; in nvme_tcp_try_send_data()
1011 if (last && !queue->data_digest && !nvme_tcp_queue_more(queue)) in nvme_tcp_try_send_data()
1019 bvec_set_page(&bvec, page, len, offset); in nvme_tcp_try_send_data()
1020 iov_iter_bvec(&msg.msg_iter, ITER_SOURCE, &bvec, 1, len); in nvme_tcp_try_send_data()
1021 ret = sock_sendmsg(queue->sock, &msg); in nvme_tcp_try_send_data()
1025 if (queue->data_digest) in nvme_tcp_try_send_data()
1026 nvme_tcp_ddgst_update(queue->snd_hash, page, in nvme_tcp_try_send_data()
1038 if (last && ret == len) { in nvme_tcp_try_send_data()
1039 if (queue->data_digest) { in nvme_tcp_try_send_data()
1040 nvme_tcp_ddgst_final(queue->snd_hash, in nvme_tcp_try_send_data()
1041 &req->ddgst); in nvme_tcp_try_send_data()
1042 req->state = NVME_TCP_SEND_DDGST; in nvme_tcp_try_send_data()
1043 req->offset = 0; in nvme_tcp_try_send_data()
1053 return -EAGAIN; in nvme_tcp_try_send_data()
1058 struct nvme_tcp_queue *queue = req->queue; in nvme_tcp_try_send_cmd_pdu()
1064 int len = sizeof(*pdu) + hdgst - req->offset; in nvme_tcp_try_send_cmd_pdu() local
1072 if (queue->hdr_digest && !req->offset) in nvme_tcp_try_send_cmd_pdu()
1073 nvme_tcp_hdgst(queue->snd_hash, pdu, sizeof(*pdu)); in nvme_tcp_try_send_cmd_pdu()
1075 bvec_set_virt(&bvec, (void *)pdu + req->offset, len); in nvme_tcp_try_send_cmd_pdu()
1076 iov_iter_bvec(&msg.msg_iter, ITER_SOURCE, &bvec, 1, len); in nvme_tcp_try_send_cmd_pdu()
1077 ret = sock_sendmsg(queue->sock, &msg); in nvme_tcp_try_send_cmd_pdu()
1081 len -= ret; in nvme_tcp_try_send_cmd_pdu()
1082 if (!len) { in nvme_tcp_try_send_cmd_pdu()
1084 req->state = NVME_TCP_SEND_DATA; in nvme_tcp_try_send_cmd_pdu()
1085 if (queue->data_digest) in nvme_tcp_try_send_cmd_pdu()
1086 crypto_ahash_init(queue->snd_hash); in nvme_tcp_try_send_cmd_pdu()
1092 req->offset += ret; in nvme_tcp_try_send_cmd_pdu()
1094 return -EAGAIN; in nvme_tcp_try_send_cmd_pdu()
1099 struct nvme_tcp_queue *queue = req->queue; in nvme_tcp_try_send_data_pdu()
1104 int len = sizeof(*pdu) - req->offset + hdgst; in nvme_tcp_try_send_data_pdu() local
1107 if (queue->hdr_digest && !req->offset) in nvme_tcp_try_send_data_pdu()
1108 nvme_tcp_hdgst(queue->snd_hash, pdu, sizeof(*pdu)); in nvme_tcp_try_send_data_pdu()
1110 if (!req->h2cdata_left) in nvme_tcp_try_send_data_pdu()
1113 bvec_set_virt(&bvec, (void *)pdu + req->offset, len); in nvme_tcp_try_send_data_pdu()
1114 iov_iter_bvec(&msg.msg_iter, ITER_SOURCE, &bvec, 1, len); in nvme_tcp_try_send_data_pdu()
1115 ret = sock_sendmsg(queue->sock, &msg); in nvme_tcp_try_send_data_pdu()
1119 len -= ret; in nvme_tcp_try_send_data_pdu()
1120 if (!len) { in nvme_tcp_try_send_data_pdu()
1121 req->state = NVME_TCP_SEND_DATA; in nvme_tcp_try_send_data_pdu()
1122 if (queue->data_digest) in nvme_tcp_try_send_data_pdu()
1123 crypto_ahash_init(queue->snd_hash); in nvme_tcp_try_send_data_pdu()
1126 req->offset += ret; in nvme_tcp_try_send_data_pdu()
1128 return -EAGAIN; in nvme_tcp_try_send_data_pdu()
1133 struct nvme_tcp_queue *queue = req->queue; in nvme_tcp_try_send_ddgst()
1134 size_t offset = req->offset; in nvme_tcp_try_send_ddgst()
1135 u32 h2cdata_left = req->h2cdata_left; in nvme_tcp_try_send_ddgst()
1139 .iov_base = (u8 *)&req->ddgst + req->offset, in nvme_tcp_try_send_ddgst()
1140 .iov_len = NVME_TCP_DIGEST_LENGTH - req->offset in nvme_tcp_try_send_ddgst()
1148 ret = kernel_sendmsg(queue->sock, &msg, &iov, 1, iov.iov_len); in nvme_tcp_try_send_ddgst()
1160 req->offset += ret; in nvme_tcp_try_send_ddgst()
1161 return -EAGAIN; in nvme_tcp_try_send_ddgst()
1170 if (!queue->request) { in nvme_tcp_try_send()
1171 queue->request = nvme_tcp_fetch_request(queue); in nvme_tcp_try_send()
1172 if (!queue->request) in nvme_tcp_try_send()
1175 req = queue->request; in nvme_tcp_try_send()
1178 if (req->state == NVME_TCP_SEND_CMD_PDU) { in nvme_tcp_try_send()
1186 if (req->state == NVME_TCP_SEND_H2C_PDU) { in nvme_tcp_try_send()
1192 if (req->state == NVME_TCP_SEND_DATA) { in nvme_tcp_try_send()
1198 if (req->state == NVME_TCP_SEND_DDGST) in nvme_tcp_try_send()
1201 if (ret == -EAGAIN) { in nvme_tcp_try_send()
1204 dev_err(queue->ctrl->ctrl.device, in nvme_tcp_try_send()
1206 nvme_tcp_fail_request(queue->request); in nvme_tcp_try_send()
1216 struct socket *sock = queue->sock; in nvme_tcp_try_recv()
1217 struct sock *sk = sock->sk; in nvme_tcp_try_recv()
1224 queue->nr_cqe = 0; in nvme_tcp_try_recv()
1225 consumed = sock->ops->read_sock(sk, &rd_desc, nvme_tcp_recv_skb); in nvme_tcp_try_recv()
1240 if (mutex_trylock(&queue->send_mutex)) { in nvme_tcp_io_work()
1242 mutex_unlock(&queue->send_mutex); in nvme_tcp_io_work()
1255 if (!pending || !queue->rd_enabled) in nvme_tcp_io_work()
1260 queue_work_on(queue->io_cpu, nvme_tcp_wq, &queue->io_work); in nvme_tcp_io_work()
1265 struct crypto_ahash *tfm = crypto_ahash_reqtfm(queue->rcv_hash); in nvme_tcp_free_crypto()
1267 ahash_request_free(queue->rcv_hash); in nvme_tcp_free_crypto()
1268 ahash_request_free(queue->snd_hash); in nvme_tcp_free_crypto()
1280 queue->snd_hash = ahash_request_alloc(tfm, GFP_KERNEL); in nvme_tcp_alloc_crypto()
1281 if (!queue->snd_hash) in nvme_tcp_alloc_crypto()
1283 ahash_request_set_callback(queue->snd_hash, 0, NULL, NULL); in nvme_tcp_alloc_crypto()
1285 queue->rcv_hash = ahash_request_alloc(tfm, GFP_KERNEL); in nvme_tcp_alloc_crypto()
1286 if (!queue->rcv_hash) in nvme_tcp_alloc_crypto()
1288 ahash_request_set_callback(queue->rcv_hash, 0, NULL, NULL); in nvme_tcp_alloc_crypto()
1292 ahash_request_free(queue->snd_hash); in nvme_tcp_alloc_crypto()
1295 return -ENOMEM; in nvme_tcp_alloc_crypto()
1298 static void nvme_tcp_free_async_req(struct nvme_tcp_ctrl *ctrl) in nvme_tcp_free_async_req() argument
1300 struct nvme_tcp_request *async = &ctrl->async_req; in nvme_tcp_free_async_req()
1302 page_frag_free(async->pdu); in nvme_tcp_free_async_req()
1305 static int nvme_tcp_alloc_async_req(struct nvme_tcp_ctrl *ctrl) in nvme_tcp_alloc_async_req() argument
1307 struct nvme_tcp_queue *queue = &ctrl->queues[0]; in nvme_tcp_alloc_async_req()
1308 struct nvme_tcp_request *async = &ctrl->async_req; in nvme_tcp_alloc_async_req()
1311 async->pdu = page_frag_alloc(&queue->pf_cache, in nvme_tcp_alloc_async_req()
1314 if (!async->pdu) in nvme_tcp_alloc_async_req()
1315 return -ENOMEM; in nvme_tcp_alloc_async_req()
1317 async->queue = &ctrl->queues[0]; in nvme_tcp_alloc_async_req()
1324 struct nvme_tcp_ctrl *ctrl = to_tcp_ctrl(nctrl); in nvme_tcp_free_queue() local
1325 struct nvme_tcp_queue *queue = &ctrl->queues[qid]; in nvme_tcp_free_queue()
1328 if (!test_and_clear_bit(NVME_TCP_Q_ALLOCATED, &queue->flags)) in nvme_tcp_free_queue()
1331 if (queue->hdr_digest || queue->data_digest) in nvme_tcp_free_queue()
1334 if (queue->pf_cache.va) { in nvme_tcp_free_queue()
1335 page = virt_to_head_page(queue->pf_cache.va); in nvme_tcp_free_queue()
1336 __page_frag_cache_drain(page, queue->pf_cache.pagecnt_bias); in nvme_tcp_free_queue()
1337 queue->pf_cache.va = NULL; in nvme_tcp_free_queue()
1341 sock_release(queue->sock); in nvme_tcp_free_queue()
1344 kfree(queue->pdu); in nvme_tcp_free_queue()
1345 mutex_destroy(&queue->send_mutex); in nvme_tcp_free_queue()
1346 mutex_destroy(&queue->queue_lock); in nvme_tcp_free_queue()
1361 return -ENOMEM; in nvme_tcp_init_connection()
1365 ret = -ENOMEM; in nvme_tcp_init_connection()
1369 icreq->hdr.type = nvme_tcp_icreq; in nvme_tcp_init_connection()
1370 icreq->hdr.hlen = sizeof(*icreq); in nvme_tcp_init_connection()
1371 icreq->hdr.pdo = 0; in nvme_tcp_init_connection()
1372 icreq->hdr.plen = cpu_to_le32(icreq->hdr.hlen); in nvme_tcp_init_connection()
1373 icreq->pfv = cpu_to_le16(NVME_TCP_PFV_1_0); in nvme_tcp_init_connection()
1374 icreq->maxr2t = 0; /* single inflight r2t supported */ in nvme_tcp_init_connection()
1375 icreq->hpda = 0; /* no alignment constraint */ in nvme_tcp_init_connection()
1376 if (queue->hdr_digest) in nvme_tcp_init_connection()
1377 icreq->digest |= NVME_TCP_HDR_DIGEST_ENABLE; in nvme_tcp_init_connection()
1378 if (queue->data_digest) in nvme_tcp_init_connection()
1379 icreq->digest |= NVME_TCP_DATA_DIGEST_ENABLE; in nvme_tcp_init_connection()
1383 ret = kernel_sendmsg(queue->sock, &msg, &iov, 1, iov.iov_len); in nvme_tcp_init_connection()
1390 ret = kernel_recvmsg(queue->sock, &msg, &iov, 1, in nvme_tcp_init_connection()
1395 ret = -EINVAL; in nvme_tcp_init_connection()
1396 if (icresp->hdr.type != nvme_tcp_icresp) { in nvme_tcp_init_connection()
1398 nvme_tcp_queue_id(queue), icresp->hdr.type); in nvme_tcp_init_connection()
1402 if (le32_to_cpu(icresp->hdr.plen) != sizeof(*icresp)) { in nvme_tcp_init_connection()
1404 nvme_tcp_queue_id(queue), icresp->hdr.plen); in nvme_tcp_init_connection()
1408 if (icresp->pfv != NVME_TCP_PFV_1_0) { in nvme_tcp_init_connection()
1410 nvme_tcp_queue_id(queue), icresp->pfv); in nvme_tcp_init_connection()
1414 ctrl_ddgst = !!(icresp->digest & NVME_TCP_DATA_DIGEST_ENABLE); in nvme_tcp_init_connection()
1415 if ((queue->data_digest && !ctrl_ddgst) || in nvme_tcp_init_connection()
1416 (!queue->data_digest && ctrl_ddgst)) { in nvme_tcp_init_connection()
1417 pr_err("queue %d: data digest mismatch host: %s ctrl: %s\n", in nvme_tcp_init_connection()
1419 queue->data_digest ? "enabled" : "disabled", in nvme_tcp_init_connection()
1424 ctrl_hdgst = !!(icresp->digest & NVME_TCP_HDR_DIGEST_ENABLE); in nvme_tcp_init_connection()
1425 if ((queue->hdr_digest && !ctrl_hdgst) || in nvme_tcp_init_connection()
1426 (!queue->hdr_digest && ctrl_hdgst)) { in nvme_tcp_init_connection()
1427 pr_err("queue %d: header digest mismatch host: %s ctrl: %s\n", in nvme_tcp_init_connection()
1429 queue->hdr_digest ? "enabled" : "disabled", in nvme_tcp_init_connection()
1434 if (icresp->cpda != 0) { in nvme_tcp_init_connection()
1436 nvme_tcp_queue_id(queue), icresp->cpda); in nvme_tcp_init_connection()
1440 maxh2cdata = le32_to_cpu(icresp->maxdata); in nvme_tcp_init_connection()
1446 queue->maxh2cdata = maxh2cdata; in nvme_tcp_init_connection()
1463 struct nvme_tcp_ctrl *ctrl = queue->ctrl; in nvme_tcp_default_queue() local
1467 qid < 1 + ctrl->io_queues[HCTX_TYPE_DEFAULT]; in nvme_tcp_default_queue()
1472 struct nvme_tcp_ctrl *ctrl = queue->ctrl; in nvme_tcp_read_queue() local
1477 qid < 1 + ctrl->io_queues[HCTX_TYPE_DEFAULT] + in nvme_tcp_read_queue()
1478 ctrl->io_queues[HCTX_TYPE_READ]; in nvme_tcp_read_queue()
1483 struct nvme_tcp_ctrl *ctrl = queue->ctrl; in nvme_tcp_poll_queue() local
1489 qid < 1 + ctrl->io_queues[HCTX_TYPE_DEFAULT] + in nvme_tcp_poll_queue()
1490 ctrl->io_queues[HCTX_TYPE_READ] + in nvme_tcp_poll_queue()
1491 ctrl->io_queues[HCTX_TYPE_POLL]; in nvme_tcp_poll_queue()
1496 struct nvme_tcp_ctrl *ctrl = queue->ctrl; in nvme_tcp_set_queue_io_cpu() local
1501 n = qid - 1; in nvme_tcp_set_queue_io_cpu()
1503 n = qid - ctrl->io_queues[HCTX_TYPE_DEFAULT] - 1; in nvme_tcp_set_queue_io_cpu()
1505 n = qid - ctrl->io_queues[HCTX_TYPE_DEFAULT] - in nvme_tcp_set_queue_io_cpu()
1506 ctrl->io_queues[HCTX_TYPE_READ] - 1; in nvme_tcp_set_queue_io_cpu()
1507 queue->io_cpu = cpumask_next_wrap(n - 1, cpu_online_mask, -1, false); in nvme_tcp_set_queue_io_cpu()
1512 struct nvme_tcp_ctrl *ctrl = to_tcp_ctrl(nctrl); in nvme_tcp_alloc_queue() local
1513 struct nvme_tcp_queue *queue = &ctrl->queues[qid]; in nvme_tcp_alloc_queue()
1516 mutex_init(&queue->queue_lock); in nvme_tcp_alloc_queue()
1517 queue->ctrl = ctrl; in nvme_tcp_alloc_queue()
1518 init_llist_head(&queue->req_list); in nvme_tcp_alloc_queue()
1519 INIT_LIST_HEAD(&queue->send_list); in nvme_tcp_alloc_queue()
1520 mutex_init(&queue->send_mutex); in nvme_tcp_alloc_queue()
1521 INIT_WORK(&queue->io_work, nvme_tcp_io_work); in nvme_tcp_alloc_queue()
1524 queue->cmnd_capsule_len = nctrl->ioccsz * 16; in nvme_tcp_alloc_queue()
1526 queue->cmnd_capsule_len = sizeof(struct nvme_command) + in nvme_tcp_alloc_queue()
1529 ret = sock_create(ctrl->addr.ss_family, SOCK_STREAM, in nvme_tcp_alloc_queue()
1530 IPPROTO_TCP, &queue->sock); in nvme_tcp_alloc_queue()
1532 dev_err(nctrl->device, in nvme_tcp_alloc_queue()
1537 nvme_tcp_reclassify_socket(queue->sock); in nvme_tcp_alloc_queue()
1540 tcp_sock_set_syncnt(queue->sock->sk, 1); in nvme_tcp_alloc_queue()
1543 tcp_sock_set_nodelay(queue->sock->sk); in nvme_tcp_alloc_queue()
1550 sock_no_linger(queue->sock->sk); in nvme_tcp_alloc_queue()
1553 sock_set_priority(queue->sock->sk, so_priority); in nvme_tcp_alloc_queue()
1556 if (nctrl->opts->tos >= 0) in nvme_tcp_alloc_queue()
1557 ip_sock_set_tos(queue->sock->sk, nctrl->opts->tos); in nvme_tcp_alloc_queue()
1560 queue->sock->sk->sk_rcvtimeo = 10 * HZ; in nvme_tcp_alloc_queue()
1562 queue->sock->sk->sk_allocation = GFP_ATOMIC; in nvme_tcp_alloc_queue()
1563 queue->sock->sk->sk_use_task_frag = false; in nvme_tcp_alloc_queue()
1565 queue->request = NULL; in nvme_tcp_alloc_queue()
1566 queue->data_remaining = 0; in nvme_tcp_alloc_queue()
1567 queue->ddgst_remaining = 0; in nvme_tcp_alloc_queue()
1568 queue->pdu_remaining = 0; in nvme_tcp_alloc_queue()
1569 queue->pdu_offset = 0; in nvme_tcp_alloc_queue()
1570 sk_set_memalloc(queue->sock->sk); in nvme_tcp_alloc_queue()
1572 if (nctrl->opts->mask & NVMF_OPT_HOST_TRADDR) { in nvme_tcp_alloc_queue()
1573 ret = kernel_bind(queue->sock, (struct sockaddr *)&ctrl->src_addr, in nvme_tcp_alloc_queue()
1574 sizeof(ctrl->src_addr)); in nvme_tcp_alloc_queue()
1576 dev_err(nctrl->device, in nvme_tcp_alloc_queue()
1583 if (nctrl->opts->mask & NVMF_OPT_HOST_IFACE) { in nvme_tcp_alloc_queue()
1584 char *iface = nctrl->opts->host_iface; in nvme_tcp_alloc_queue()
1587 ret = sock_setsockopt(queue->sock, SOL_SOCKET, SO_BINDTODEVICE, in nvme_tcp_alloc_queue()
1590 dev_err(nctrl->device, in nvme_tcp_alloc_queue()
1597 queue->hdr_digest = nctrl->opts->hdr_digest; in nvme_tcp_alloc_queue()
1598 queue->data_digest = nctrl->opts->data_digest; in nvme_tcp_alloc_queue()
1599 if (queue->hdr_digest || queue->data_digest) { in nvme_tcp_alloc_queue()
1602 dev_err(nctrl->device, in nvme_tcp_alloc_queue()
1610 queue->pdu = kmalloc(rcv_pdu_size, GFP_KERNEL); in nvme_tcp_alloc_queue()
1611 if (!queue->pdu) { in nvme_tcp_alloc_queue()
1612 ret = -ENOMEM; in nvme_tcp_alloc_queue()
1616 dev_dbg(nctrl->device, "connecting queue %d\n", in nvme_tcp_alloc_queue()
1619 ret = kernel_connect(queue->sock, (struct sockaddr *)&ctrl->addr, in nvme_tcp_alloc_queue()
1620 sizeof(ctrl->addr), 0); in nvme_tcp_alloc_queue()
1622 dev_err(nctrl->device, in nvme_tcp_alloc_queue()
1631 set_bit(NVME_TCP_Q_ALLOCATED, &queue->flags); in nvme_tcp_alloc_queue()
1636 kernel_sock_shutdown(queue->sock, SHUT_RDWR); in nvme_tcp_alloc_queue()
1638 kfree(queue->pdu); in nvme_tcp_alloc_queue()
1640 if (queue->hdr_digest || queue->data_digest) in nvme_tcp_alloc_queue()
1643 sock_release(queue->sock); in nvme_tcp_alloc_queue()
1644 queue->sock = NULL; in nvme_tcp_alloc_queue()
1646 mutex_destroy(&queue->send_mutex); in nvme_tcp_alloc_queue()
1647 mutex_destroy(&queue->queue_lock); in nvme_tcp_alloc_queue()
1653 struct socket *sock = queue->sock; in nvme_tcp_restore_sock_ops()
1655 write_lock_bh(&sock->sk->sk_callback_lock); in nvme_tcp_restore_sock_ops()
1656 sock->sk->sk_user_data = NULL; in nvme_tcp_restore_sock_ops()
1657 sock->sk->sk_data_ready = queue->data_ready; in nvme_tcp_restore_sock_ops()
1658 sock->sk->sk_state_change = queue->state_change; in nvme_tcp_restore_sock_ops()
1659 sock->sk->sk_write_space = queue->write_space; in nvme_tcp_restore_sock_ops()
1660 write_unlock_bh(&sock->sk->sk_callback_lock); in nvme_tcp_restore_sock_ops()
1665 kernel_sock_shutdown(queue->sock, SHUT_RDWR); in __nvme_tcp_stop_queue()
1667 cancel_work_sync(&queue->io_work); in __nvme_tcp_stop_queue()
1672 struct nvme_tcp_ctrl *ctrl = to_tcp_ctrl(nctrl); in nvme_tcp_stop_queue() local
1673 struct nvme_tcp_queue *queue = &ctrl->queues[qid]; in nvme_tcp_stop_queue()
1675 if (!test_bit(NVME_TCP_Q_ALLOCATED, &queue->flags)) in nvme_tcp_stop_queue()
1678 mutex_lock(&queue->queue_lock); in nvme_tcp_stop_queue()
1679 if (test_and_clear_bit(NVME_TCP_Q_LIVE, &queue->flags)) in nvme_tcp_stop_queue()
1681 mutex_unlock(&queue->queue_lock); in nvme_tcp_stop_queue()
1686 write_lock_bh(&queue->sock->sk->sk_callback_lock); in nvme_tcp_setup_sock_ops()
1687 queue->sock->sk->sk_user_data = queue; in nvme_tcp_setup_sock_ops()
1688 queue->state_change = queue->sock->sk->sk_state_change; in nvme_tcp_setup_sock_ops()
1689 queue->data_ready = queue->sock->sk->sk_data_ready; in nvme_tcp_setup_sock_ops()
1690 queue->write_space = queue->sock->sk->sk_write_space; in nvme_tcp_setup_sock_ops()
1691 queue->sock->sk->sk_data_ready = nvme_tcp_data_ready; in nvme_tcp_setup_sock_ops()
1692 queue->sock->sk->sk_state_change = nvme_tcp_state_change; in nvme_tcp_setup_sock_ops()
1693 queue->sock->sk->sk_write_space = nvme_tcp_write_space; in nvme_tcp_setup_sock_ops()
1695 queue->sock->sk->sk_ll_usec = 1; in nvme_tcp_setup_sock_ops()
1697 write_unlock_bh(&queue->sock->sk->sk_callback_lock); in nvme_tcp_setup_sock_ops()
1702 struct nvme_tcp_ctrl *ctrl = to_tcp_ctrl(nctrl); in nvme_tcp_start_queue() local
1703 struct nvme_tcp_queue *queue = &ctrl->queues[idx]; in nvme_tcp_start_queue()
1706 queue->rd_enabled = true; in nvme_tcp_start_queue()
1716 set_bit(NVME_TCP_Q_LIVE, &queue->flags); in nvme_tcp_start_queue()
1718 if (test_bit(NVME_TCP_Q_ALLOCATED, &queue->flags)) in nvme_tcp_start_queue()
1720 dev_err(nctrl->device, in nvme_tcp_start_queue()
1726 static void nvme_tcp_free_admin_queue(struct nvme_ctrl *ctrl) in nvme_tcp_free_admin_queue() argument
1728 if (to_tcp_ctrl(ctrl)->async_req.pdu) { in nvme_tcp_free_admin_queue()
1729 cancel_work_sync(&ctrl->async_event_work); in nvme_tcp_free_admin_queue()
1730 nvme_tcp_free_async_req(to_tcp_ctrl(ctrl)); in nvme_tcp_free_admin_queue()
1731 to_tcp_ctrl(ctrl)->async_req.pdu = NULL; in nvme_tcp_free_admin_queue()
1734 nvme_tcp_free_queue(ctrl, 0); in nvme_tcp_free_admin_queue()
1737 static void nvme_tcp_free_io_queues(struct nvme_ctrl *ctrl) in nvme_tcp_free_io_queues() argument
1741 for (i = 1; i < ctrl->queue_count; i++) in nvme_tcp_free_io_queues()
1742 nvme_tcp_free_queue(ctrl, i); in nvme_tcp_free_io_queues()
1745 static void nvme_tcp_stop_io_queues(struct nvme_ctrl *ctrl) in nvme_tcp_stop_io_queues() argument
1749 for (i = 1; i < ctrl->queue_count; i++) in nvme_tcp_stop_io_queues()
1750 nvme_tcp_stop_queue(ctrl, i); in nvme_tcp_stop_io_queues()
1753 static int nvme_tcp_start_io_queues(struct nvme_ctrl *ctrl, in nvme_tcp_start_io_queues() argument
1759 ret = nvme_tcp_start_queue(ctrl, i); in nvme_tcp_start_io_queues()
1767 for (i--; i >= first; i--) in nvme_tcp_start_io_queues()
1768 nvme_tcp_stop_queue(ctrl, i); in nvme_tcp_start_io_queues()
1772 static int nvme_tcp_alloc_admin_queue(struct nvme_ctrl *ctrl) in nvme_tcp_alloc_admin_queue() argument
1776 ret = nvme_tcp_alloc_queue(ctrl, 0); in nvme_tcp_alloc_admin_queue()
1780 ret = nvme_tcp_alloc_async_req(to_tcp_ctrl(ctrl)); in nvme_tcp_alloc_admin_queue()
1787 nvme_tcp_free_queue(ctrl, 0); in nvme_tcp_alloc_admin_queue()
1791 static int __nvme_tcp_alloc_io_queues(struct nvme_ctrl *ctrl) in __nvme_tcp_alloc_io_queues() argument
1795 for (i = 1; i < ctrl->queue_count; i++) { in __nvme_tcp_alloc_io_queues()
1796 ret = nvme_tcp_alloc_queue(ctrl, i); in __nvme_tcp_alloc_io_queues()
1804 for (i--; i >= 1; i--) in __nvme_tcp_alloc_io_queues()
1805 nvme_tcp_free_queue(ctrl, i); in __nvme_tcp_alloc_io_queues()
1810 static int nvme_tcp_alloc_io_queues(struct nvme_ctrl *ctrl) in nvme_tcp_alloc_io_queues() argument
1815 nr_io_queues = nvmf_nr_io_queues(ctrl->opts); in nvme_tcp_alloc_io_queues()
1816 ret = nvme_set_queue_count(ctrl, &nr_io_queues); in nvme_tcp_alloc_io_queues()
1821 dev_err(ctrl->device, in nvme_tcp_alloc_io_queues()
1823 return -ENOMEM; in nvme_tcp_alloc_io_queues()
1826 ctrl->queue_count = nr_io_queues + 1; in nvme_tcp_alloc_io_queues()
1827 dev_info(ctrl->device, in nvme_tcp_alloc_io_queues()
1830 nvmf_set_io_queues(ctrl->opts, nr_io_queues, in nvme_tcp_alloc_io_queues()
1831 to_tcp_ctrl(ctrl)->io_queues); in nvme_tcp_alloc_io_queues()
1832 return __nvme_tcp_alloc_io_queues(ctrl); in nvme_tcp_alloc_io_queues()
1835 static void nvme_tcp_destroy_io_queues(struct nvme_ctrl *ctrl, bool remove) in nvme_tcp_destroy_io_queues() argument
1837 nvme_tcp_stop_io_queues(ctrl); in nvme_tcp_destroy_io_queues()
1839 nvme_remove_io_tag_set(ctrl); in nvme_tcp_destroy_io_queues()
1840 nvme_tcp_free_io_queues(ctrl); in nvme_tcp_destroy_io_queues()
1843 static int nvme_tcp_configure_io_queues(struct nvme_ctrl *ctrl, bool new) in nvme_tcp_configure_io_queues() argument
1847 ret = nvme_tcp_alloc_io_queues(ctrl); in nvme_tcp_configure_io_queues()
1852 ret = nvme_alloc_io_tag_set(ctrl, &to_tcp_ctrl(ctrl)->tag_set, in nvme_tcp_configure_io_queues()
1854 ctrl->opts->nr_poll_queues ? HCTX_MAX_TYPES : 2, in nvme_tcp_configure_io_queues()
1865 nr_queues = min(ctrl->tagset->nr_hw_queues + 1, ctrl->queue_count); in nvme_tcp_configure_io_queues()
1866 ret = nvme_tcp_start_io_queues(ctrl, 1, nr_queues); in nvme_tcp_configure_io_queues()
1871 nvme_start_freeze(ctrl); in nvme_tcp_configure_io_queues()
1872 nvme_unquiesce_io_queues(ctrl); in nvme_tcp_configure_io_queues()
1873 if (!nvme_wait_freeze_timeout(ctrl, NVME_IO_TIMEOUT)) { in nvme_tcp_configure_io_queues()
1879 ret = -ENODEV; in nvme_tcp_configure_io_queues()
1880 nvme_unfreeze(ctrl); in nvme_tcp_configure_io_queues()
1883 blk_mq_update_nr_hw_queues(ctrl->tagset, in nvme_tcp_configure_io_queues()
1884 ctrl->queue_count - 1); in nvme_tcp_configure_io_queues()
1885 nvme_unfreeze(ctrl); in nvme_tcp_configure_io_queues()
1892 ret = nvme_tcp_start_io_queues(ctrl, nr_queues, in nvme_tcp_configure_io_queues()
1893 ctrl->tagset->nr_hw_queues + 1); in nvme_tcp_configure_io_queues()
1900 nvme_quiesce_io_queues(ctrl); in nvme_tcp_configure_io_queues()
1901 nvme_sync_io_queues(ctrl); in nvme_tcp_configure_io_queues()
1902 nvme_tcp_stop_io_queues(ctrl); in nvme_tcp_configure_io_queues()
1904 nvme_cancel_tagset(ctrl); in nvme_tcp_configure_io_queues()
1906 nvme_remove_io_tag_set(ctrl); in nvme_tcp_configure_io_queues()
1908 nvme_tcp_free_io_queues(ctrl); in nvme_tcp_configure_io_queues()
1912 static void nvme_tcp_destroy_admin_queue(struct nvme_ctrl *ctrl, bool remove) in nvme_tcp_destroy_admin_queue() argument
1914 nvme_tcp_stop_queue(ctrl, 0); in nvme_tcp_destroy_admin_queue()
1916 nvme_remove_admin_tag_set(ctrl); in nvme_tcp_destroy_admin_queue()
1917 nvme_tcp_free_admin_queue(ctrl); in nvme_tcp_destroy_admin_queue()
1920 static int nvme_tcp_configure_admin_queue(struct nvme_ctrl *ctrl, bool new) in nvme_tcp_configure_admin_queue() argument
1924 error = nvme_tcp_alloc_admin_queue(ctrl); in nvme_tcp_configure_admin_queue()
1929 error = nvme_alloc_admin_tag_set(ctrl, in nvme_tcp_configure_admin_queue()
1930 &to_tcp_ctrl(ctrl)->admin_tag_set, in nvme_tcp_configure_admin_queue()
1937 error = nvme_tcp_start_queue(ctrl, 0); in nvme_tcp_configure_admin_queue()
1941 error = nvme_enable_ctrl(ctrl); in nvme_tcp_configure_admin_queue()
1945 nvme_unquiesce_admin_queue(ctrl); in nvme_tcp_configure_admin_queue()
1947 error = nvme_init_ctrl_finish(ctrl, false); in nvme_tcp_configure_admin_queue()
1954 nvme_quiesce_admin_queue(ctrl); in nvme_tcp_configure_admin_queue()
1955 blk_sync_queue(ctrl->admin_q); in nvme_tcp_configure_admin_queue()
1957 nvme_tcp_stop_queue(ctrl, 0); in nvme_tcp_configure_admin_queue()
1958 nvme_cancel_admin_tagset(ctrl); in nvme_tcp_configure_admin_queue()
1961 nvme_remove_admin_tag_set(ctrl); in nvme_tcp_configure_admin_queue()
1963 nvme_tcp_free_admin_queue(ctrl); in nvme_tcp_configure_admin_queue()
1967 static void nvme_tcp_teardown_admin_queue(struct nvme_ctrl *ctrl, in nvme_tcp_teardown_admin_queue() argument
1970 nvme_quiesce_admin_queue(ctrl); in nvme_tcp_teardown_admin_queue()
1971 blk_sync_queue(ctrl->admin_q); in nvme_tcp_teardown_admin_queue()
1972 nvme_tcp_stop_queue(ctrl, 0); in nvme_tcp_teardown_admin_queue()
1973 nvme_cancel_admin_tagset(ctrl); in nvme_tcp_teardown_admin_queue()
1975 nvme_unquiesce_admin_queue(ctrl); in nvme_tcp_teardown_admin_queue()
1976 nvme_tcp_destroy_admin_queue(ctrl, remove); in nvme_tcp_teardown_admin_queue()
1979 static void nvme_tcp_teardown_io_queues(struct nvme_ctrl *ctrl, in nvme_tcp_teardown_io_queues() argument
1982 if (ctrl->queue_count <= 1) in nvme_tcp_teardown_io_queues()
1984 nvme_quiesce_admin_queue(ctrl); in nvme_tcp_teardown_io_queues()
1985 nvme_quiesce_io_queues(ctrl); in nvme_tcp_teardown_io_queues()
1986 nvme_sync_io_queues(ctrl); in nvme_tcp_teardown_io_queues()
1987 nvme_tcp_stop_io_queues(ctrl); in nvme_tcp_teardown_io_queues()
1988 nvme_cancel_tagset(ctrl); in nvme_tcp_teardown_io_queues()
1990 nvme_unquiesce_io_queues(ctrl); in nvme_tcp_teardown_io_queues()
1991 nvme_tcp_destroy_io_queues(ctrl, remove); in nvme_tcp_teardown_io_queues()
1994 static void nvme_tcp_reconnect_or_remove(struct nvme_ctrl *ctrl) in nvme_tcp_reconnect_or_remove() argument
1996 enum nvme_ctrl_state state = nvme_ctrl_state(ctrl); in nvme_tcp_reconnect_or_remove()
2004 if (nvmf_should_reconnect(ctrl)) { in nvme_tcp_reconnect_or_remove()
2005 dev_info(ctrl->device, "Reconnecting in %d seconds...\n", in nvme_tcp_reconnect_or_remove()
2006 ctrl->opts->reconnect_delay); in nvme_tcp_reconnect_or_remove()
2007 queue_delayed_work(nvme_wq, &to_tcp_ctrl(ctrl)->connect_work, in nvme_tcp_reconnect_or_remove()
2008 ctrl->opts->reconnect_delay * HZ); in nvme_tcp_reconnect_or_remove()
2010 dev_info(ctrl->device, "Removing controller...\n"); in nvme_tcp_reconnect_or_remove()
2011 nvme_delete_ctrl(ctrl); in nvme_tcp_reconnect_or_remove()
2015 static int nvme_tcp_setup_ctrl(struct nvme_ctrl *ctrl, bool new) in nvme_tcp_setup_ctrl() argument
2017 struct nvmf_ctrl_options *opts = ctrl->opts; in nvme_tcp_setup_ctrl()
2020 ret = nvme_tcp_configure_admin_queue(ctrl, new); in nvme_tcp_setup_ctrl()
2024 if (ctrl->icdoff) { in nvme_tcp_setup_ctrl()
2025 ret = -EOPNOTSUPP; in nvme_tcp_setup_ctrl()
2026 dev_err(ctrl->device, "icdoff is not supported!\n"); in nvme_tcp_setup_ctrl()
2030 if (!nvme_ctrl_sgl_supported(ctrl)) { in nvme_tcp_setup_ctrl()
2031 ret = -EOPNOTSUPP; in nvme_tcp_setup_ctrl()
2032 dev_err(ctrl->device, "Mandatory sgls are not supported!\n"); in nvme_tcp_setup_ctrl()
2036 if (opts->queue_size > ctrl->sqsize + 1) in nvme_tcp_setup_ctrl()
2037 dev_warn(ctrl->device, in nvme_tcp_setup_ctrl()
2038 "queue_size %zu > ctrl sqsize %u, clamping down\n", in nvme_tcp_setup_ctrl()
2039 opts->queue_size, ctrl->sqsize + 1); in nvme_tcp_setup_ctrl()
2041 if (ctrl->sqsize + 1 > ctrl->maxcmd) { in nvme_tcp_setup_ctrl()
2042 dev_warn(ctrl->device, in nvme_tcp_setup_ctrl()
2043 "sqsize %u > ctrl maxcmd %u, clamping down\n", in nvme_tcp_setup_ctrl()
2044 ctrl->sqsize + 1, ctrl->maxcmd); in nvme_tcp_setup_ctrl()
2045 ctrl->sqsize = ctrl->maxcmd - 1; in nvme_tcp_setup_ctrl()
2048 if (ctrl->queue_count > 1) { in nvme_tcp_setup_ctrl()
2049 ret = nvme_tcp_configure_io_queues(ctrl, new); in nvme_tcp_setup_ctrl()
2054 if (!nvme_change_ctrl_state(ctrl, NVME_CTRL_LIVE)) { in nvme_tcp_setup_ctrl()
2056 * state change failure is ok if we started ctrl delete, in nvme_tcp_setup_ctrl()
2060 enum nvme_ctrl_state state = nvme_ctrl_state(ctrl); in nvme_tcp_setup_ctrl()
2065 ret = -EINVAL; in nvme_tcp_setup_ctrl()
2069 nvme_start_ctrl(ctrl); in nvme_tcp_setup_ctrl()
2073 if (ctrl->queue_count > 1) { in nvme_tcp_setup_ctrl()
2074 nvme_quiesce_io_queues(ctrl); in nvme_tcp_setup_ctrl()
2075 nvme_sync_io_queues(ctrl); in nvme_tcp_setup_ctrl()
2076 nvme_tcp_stop_io_queues(ctrl); in nvme_tcp_setup_ctrl()
2077 nvme_cancel_tagset(ctrl); in nvme_tcp_setup_ctrl()
2078 nvme_tcp_destroy_io_queues(ctrl, new); in nvme_tcp_setup_ctrl()
2081 nvme_quiesce_admin_queue(ctrl); in nvme_tcp_setup_ctrl()
2082 blk_sync_queue(ctrl->admin_q); in nvme_tcp_setup_ctrl()
2083 nvme_tcp_stop_queue(ctrl, 0); in nvme_tcp_setup_ctrl()
2084 nvme_cancel_admin_tagset(ctrl); in nvme_tcp_setup_ctrl()
2085 nvme_tcp_destroy_admin_queue(ctrl, new); in nvme_tcp_setup_ctrl()
2093 struct nvme_ctrl *ctrl = &tcp_ctrl->ctrl; in nvme_tcp_reconnect_ctrl_work() local
2095 ++ctrl->nr_reconnects; in nvme_tcp_reconnect_ctrl_work()
2097 if (nvme_tcp_setup_ctrl(ctrl, false)) in nvme_tcp_reconnect_ctrl_work()
2100 dev_info(ctrl->device, "Successfully reconnected (%d attempt)\n", in nvme_tcp_reconnect_ctrl_work()
2101 ctrl->nr_reconnects); in nvme_tcp_reconnect_ctrl_work()
2103 ctrl->nr_reconnects = 0; in nvme_tcp_reconnect_ctrl_work()
2108 dev_info(ctrl->device, "Failed reconnect attempt %d\n", in nvme_tcp_reconnect_ctrl_work()
2109 ctrl->nr_reconnects); in nvme_tcp_reconnect_ctrl_work()
2110 nvme_tcp_reconnect_or_remove(ctrl); in nvme_tcp_reconnect_ctrl_work()
2117 struct nvme_ctrl *ctrl = &tcp_ctrl->ctrl; in nvme_tcp_error_recovery_work() local
2119 nvme_stop_keep_alive(ctrl); in nvme_tcp_error_recovery_work()
2120 flush_work(&ctrl->async_event_work); in nvme_tcp_error_recovery_work()
2121 nvme_tcp_teardown_io_queues(ctrl, false); in nvme_tcp_error_recovery_work()
2123 nvme_unquiesce_io_queues(ctrl); in nvme_tcp_error_recovery_work()
2124 nvme_tcp_teardown_admin_queue(ctrl, false); in nvme_tcp_error_recovery_work()
2125 nvme_unquiesce_admin_queue(ctrl); in nvme_tcp_error_recovery_work()
2126 nvme_auth_stop(ctrl); in nvme_tcp_error_recovery_work()
2128 if (!nvme_change_ctrl_state(ctrl, NVME_CTRL_CONNECTING)) { in nvme_tcp_error_recovery_work()
2129 /* state change failure is ok if we started ctrl delete */ in nvme_tcp_error_recovery_work()
2130 enum nvme_ctrl_state state = nvme_ctrl_state(ctrl); in nvme_tcp_error_recovery_work()
2137 nvme_tcp_reconnect_or_remove(ctrl); in nvme_tcp_error_recovery_work()
2140 static void nvme_tcp_teardown_ctrl(struct nvme_ctrl *ctrl, bool shutdown) in nvme_tcp_teardown_ctrl() argument
2142 nvme_tcp_teardown_io_queues(ctrl, shutdown); in nvme_tcp_teardown_ctrl()
2143 nvme_quiesce_admin_queue(ctrl); in nvme_tcp_teardown_ctrl()
2144 nvme_disable_ctrl(ctrl, shutdown); in nvme_tcp_teardown_ctrl()
2145 nvme_tcp_teardown_admin_queue(ctrl, shutdown); in nvme_tcp_teardown_ctrl()
2148 static void nvme_tcp_delete_ctrl(struct nvme_ctrl *ctrl) in nvme_tcp_delete_ctrl() argument
2150 nvme_tcp_teardown_ctrl(ctrl, true); in nvme_tcp_delete_ctrl()
2155 struct nvme_ctrl *ctrl = in nvme_reset_ctrl_work() local
2158 nvme_stop_ctrl(ctrl); in nvme_reset_ctrl_work()
2159 nvme_tcp_teardown_ctrl(ctrl, false); in nvme_reset_ctrl_work()
2161 if (!nvme_change_ctrl_state(ctrl, NVME_CTRL_CONNECTING)) { in nvme_reset_ctrl_work()
2162 /* state change failure is ok if we started ctrl delete */ in nvme_reset_ctrl_work()
2163 enum nvme_ctrl_state state = nvme_ctrl_state(ctrl); in nvme_reset_ctrl_work()
2170 if (nvme_tcp_setup_ctrl(ctrl, false)) in nvme_reset_ctrl_work()
2176 ++ctrl->nr_reconnects; in nvme_reset_ctrl_work()
2177 nvme_tcp_reconnect_or_remove(ctrl); in nvme_reset_ctrl_work()
2180 static void nvme_tcp_stop_ctrl(struct nvme_ctrl *ctrl) in nvme_tcp_stop_ctrl() argument
2182 flush_work(&to_tcp_ctrl(ctrl)->err_work); in nvme_tcp_stop_ctrl()
2183 cancel_delayed_work_sync(&to_tcp_ctrl(ctrl)->connect_work); in nvme_tcp_stop_ctrl()
2188 struct nvme_tcp_ctrl *ctrl = to_tcp_ctrl(nctrl); in nvme_tcp_free_ctrl() local
2190 if (list_empty(&ctrl->list)) in nvme_tcp_free_ctrl()
2194 list_del(&ctrl->list); in nvme_tcp_free_ctrl()
2197 nvmf_free_options(nctrl->opts); in nvme_tcp_free_ctrl()
2199 kfree(ctrl->queues); in nvme_tcp_free_ctrl()
2200 kfree(ctrl); in nvme_tcp_free_ctrl()
2205 struct nvme_sgl_desc *sg = &c->common.dptr.sgl; in nvme_tcp_set_sg_null()
2207 sg->addr = 0; in nvme_tcp_set_sg_null()
2208 sg->length = 0; in nvme_tcp_set_sg_null()
2209 sg->type = (NVME_TRANSPORT_SGL_DATA_DESC << 4) | in nvme_tcp_set_sg_null()
2216 struct nvme_sgl_desc *sg = &c->common.dptr.sgl; in nvme_tcp_set_sg_inline()
2218 sg->addr = cpu_to_le64(queue->ctrl->ctrl.icdoff); in nvme_tcp_set_sg_inline()
2219 sg->length = cpu_to_le32(data_len); in nvme_tcp_set_sg_inline()
2220 sg->type = (NVME_SGL_FMT_DATA_DESC << 4) | NVME_SGL_FMT_OFFSET; in nvme_tcp_set_sg_inline()
2226 struct nvme_sgl_desc *sg = &c->common.dptr.sgl; in nvme_tcp_set_sg_host_data()
2228 sg->addr = 0; in nvme_tcp_set_sg_host_data()
2229 sg->length = cpu_to_le32(data_len); in nvme_tcp_set_sg_host_data()
2230 sg->type = (NVME_TRANSPORT_SGL_DATA_DESC << 4) | in nvme_tcp_set_sg_host_data()
2236 struct nvme_tcp_ctrl *ctrl = to_tcp_ctrl(arg); in nvme_tcp_submit_async_event() local
2237 struct nvme_tcp_queue *queue = &ctrl->queues[0]; in nvme_tcp_submit_async_event()
2238 struct nvme_tcp_cmd_pdu *pdu = ctrl->async_req.pdu; in nvme_tcp_submit_async_event()
2239 struct nvme_command *cmd = &pdu->cmd; in nvme_tcp_submit_async_event()
2243 pdu->hdr.type = nvme_tcp_cmd; in nvme_tcp_submit_async_event()
2244 if (queue->hdr_digest) in nvme_tcp_submit_async_event()
2245 pdu->hdr.flags |= NVME_TCP_F_HDGST; in nvme_tcp_submit_async_event()
2246 pdu->hdr.hlen = sizeof(*pdu); in nvme_tcp_submit_async_event()
2247 pdu->hdr.plen = cpu_to_le32(pdu->hdr.hlen + hdgst); in nvme_tcp_submit_async_event()
2249 cmd->common.opcode = nvme_admin_async_event; in nvme_tcp_submit_async_event()
2250 cmd->common.command_id = NVME_AQ_BLK_MQ_DEPTH; in nvme_tcp_submit_async_event()
2251 cmd->common.flags |= NVME_CMD_SGL_METABUF; in nvme_tcp_submit_async_event()
2254 ctrl->async_req.state = NVME_TCP_SEND_CMD_PDU; in nvme_tcp_submit_async_event()
2255 ctrl->async_req.offset = 0; in nvme_tcp_submit_async_event()
2256 ctrl->async_req.curr_bio = NULL; in nvme_tcp_submit_async_event()
2257 ctrl->async_req.data_len = 0; in nvme_tcp_submit_async_event()
2259 nvme_tcp_queue_request(&ctrl->async_req, true, true); in nvme_tcp_submit_async_event()
2265 struct nvme_ctrl *ctrl = &req->queue->ctrl->ctrl; in nvme_tcp_complete_timed_out() local
2267 nvme_tcp_stop_queue(ctrl, nvme_tcp_queue_id(req->queue)); in nvme_tcp_complete_timed_out()
2274 struct nvme_ctrl *ctrl = &req->queue->ctrl->ctrl; in nvme_tcp_timeout() local
2276 u8 opc = pdu->cmd.common.opcode, fctype = pdu->cmd.fabrics.fctype; in nvme_tcp_timeout()
2277 int qid = nvme_tcp_queue_id(req->queue); in nvme_tcp_timeout()
2279 dev_warn(ctrl->device, in nvme_tcp_timeout()
2281 nvme_tcp_queue_id(req->queue), nvme_cid(rq), pdu->hdr.type, in nvme_tcp_timeout()
2284 if (nvme_ctrl_state(ctrl) != NVME_CTRL_LIVE) { in nvme_tcp_timeout()
2289 * - ctrl disable/shutdown fabrics requests in nvme_tcp_timeout()
2290 * - connect requests in nvme_tcp_timeout()
2291 * - initialization admin requests in nvme_tcp_timeout()
2292 * - I/O requests that entered after unquiescing and in nvme_tcp_timeout()
2306 nvme_tcp_error_recovery(ctrl); in nvme_tcp_timeout()
2315 struct nvme_command *c = &pdu->cmd; in nvme_tcp_map_data()
2317 c->common.flags |= NVME_CMD_SGL_METABUF; in nvme_tcp_map_data()
2322 req->data_len <= nvme_tcp_inline_data_size(req)) in nvme_tcp_map_data()
2323 nvme_tcp_set_sg_inline(queue, c, req->data_len); in nvme_tcp_map_data()
2325 nvme_tcp_set_sg_host_data(c, req->data_len); in nvme_tcp_map_data()
2335 struct nvme_tcp_queue *queue = req->queue; in nvme_tcp_setup_cmd_pdu()
2343 req->state = NVME_TCP_SEND_CMD_PDU; in nvme_tcp_setup_cmd_pdu()
2344 req->status = cpu_to_le16(NVME_SC_SUCCESS); in nvme_tcp_setup_cmd_pdu()
2345 req->offset = 0; in nvme_tcp_setup_cmd_pdu()
2346 req->data_sent = 0; in nvme_tcp_setup_cmd_pdu()
2347 req->pdu_len = 0; in nvme_tcp_setup_cmd_pdu()
2348 req->pdu_sent = 0; in nvme_tcp_setup_cmd_pdu()
2349 req->h2cdata_left = 0; in nvme_tcp_setup_cmd_pdu()
2350 req->data_len = blk_rq_nr_phys_segments(rq) ? in nvme_tcp_setup_cmd_pdu()
2352 req->curr_bio = rq->bio; in nvme_tcp_setup_cmd_pdu()
2353 if (req->curr_bio && req->data_len) in nvme_tcp_setup_cmd_pdu()
2357 req->data_len <= nvme_tcp_inline_data_size(req)) in nvme_tcp_setup_cmd_pdu()
2358 req->pdu_len = req->data_len; in nvme_tcp_setup_cmd_pdu()
2360 pdu->hdr.type = nvme_tcp_cmd; in nvme_tcp_setup_cmd_pdu()
2361 pdu->hdr.flags = 0; in nvme_tcp_setup_cmd_pdu()
2362 if (queue->hdr_digest) in nvme_tcp_setup_cmd_pdu()
2363 pdu->hdr.flags |= NVME_TCP_F_HDGST; in nvme_tcp_setup_cmd_pdu()
2364 if (queue->data_digest && req->pdu_len) { in nvme_tcp_setup_cmd_pdu()
2365 pdu->hdr.flags |= NVME_TCP_F_DDGST; in nvme_tcp_setup_cmd_pdu()
2368 pdu->hdr.hlen = sizeof(*pdu); in nvme_tcp_setup_cmd_pdu()
2369 pdu->hdr.pdo = req->pdu_len ? pdu->hdr.hlen + hdgst : 0; in nvme_tcp_setup_cmd_pdu()
2370 pdu->hdr.plen = in nvme_tcp_setup_cmd_pdu()
2371 cpu_to_le32(pdu->hdr.hlen + hdgst + req->pdu_len + ddgst); in nvme_tcp_setup_cmd_pdu()
2376 dev_err(queue->ctrl->ctrl.device, in nvme_tcp_setup_cmd_pdu()
2386 struct nvme_tcp_queue *queue = hctx->driver_data; in nvme_tcp_commit_rqs()
2388 if (!llist_empty(&queue->req_list)) in nvme_tcp_commit_rqs()
2389 queue_work_on(queue->io_cpu, nvme_tcp_wq, &queue->io_work); in nvme_tcp_commit_rqs()
2395 struct nvme_ns *ns = hctx->queue->queuedata; in nvme_tcp_queue_rq()
2396 struct nvme_tcp_queue *queue = hctx->driver_data; in nvme_tcp_queue_rq()
2397 struct request *rq = bd->rq; in nvme_tcp_queue_rq()
2399 bool queue_ready = test_bit(NVME_TCP_Q_LIVE, &queue->flags); in nvme_tcp_queue_rq()
2402 if (!nvme_check_ready(&queue->ctrl->ctrl, rq, queue_ready)) in nvme_tcp_queue_rq()
2403 return nvme_fail_nonready_command(&queue->ctrl->ctrl, rq); in nvme_tcp_queue_rq()
2411 nvme_tcp_queue_request(req, true, bd->last); in nvme_tcp_queue_rq()
2418 struct nvme_tcp_ctrl *ctrl = to_tcp_ctrl(set->driver_data); in nvme_tcp_map_queues() local
2420 nvmf_map_queues(set, &ctrl->ctrl, ctrl->io_queues); in nvme_tcp_map_queues()
2425 struct nvme_tcp_queue *queue = hctx->driver_data; in nvme_tcp_poll()
2426 struct sock *sk = queue->sock->sk; in nvme_tcp_poll()
2428 if (!test_bit(NVME_TCP_Q_LIVE, &queue->flags)) in nvme_tcp_poll()
2431 set_bit(NVME_TCP_Q_POLLING, &queue->flags); in nvme_tcp_poll()
2432 if (sk_can_busy_loop(sk) && skb_queue_empty_lockless(&sk->sk_receive_queue)) in nvme_tcp_poll()
2435 clear_bit(NVME_TCP_Q_POLLING, &queue->flags); in nvme_tcp_poll()
2436 return queue->nr_cqe; in nvme_tcp_poll()
2439 static int nvme_tcp_get_address(struct nvme_ctrl *ctrl, char *buf, int size) in nvme_tcp_get_address() argument
2441 struct nvme_tcp_queue *queue = &to_tcp_ctrl(ctrl)->queues[0]; in nvme_tcp_get_address()
2443 int ret, len; in nvme_tcp_get_address() local
2445 len = nvmf_get_address(ctrl, buf, size); in nvme_tcp_get_address()
2447 mutex_lock(&queue->queue_lock); in nvme_tcp_get_address()
2449 if (!test_bit(NVME_TCP_Q_LIVE, &queue->flags)) in nvme_tcp_get_address()
2451 ret = kernel_getsockname(queue->sock, (struct sockaddr *)&src_addr); in nvme_tcp_get_address()
2453 if (len > 0) in nvme_tcp_get_address()
2454 len--; /* strip trailing newline */ in nvme_tcp_get_address()
2455 len += scnprintf(buf + len, size - len, "%ssrc_addr=%pISc\n", in nvme_tcp_get_address()
2456 (len) ? "," : "", &src_addr); in nvme_tcp_get_address()
2459 mutex_unlock(&queue->queue_lock); in nvme_tcp_get_address()
2461 return len; in nvme_tcp_get_address()
2502 struct nvme_tcp_ctrl *ctrl; in nvme_tcp_existing_controller() local
2506 list_for_each_entry(ctrl, &nvme_tcp_ctrl_list, list) { in nvme_tcp_existing_controller()
2507 found = nvmf_ip_options_match(&ctrl->ctrl, opts); in nvme_tcp_existing_controller()
2519 struct nvme_tcp_ctrl *ctrl; in nvme_tcp_create_ctrl() local
2522 ctrl = kzalloc(sizeof(*ctrl), GFP_KERNEL); in nvme_tcp_create_ctrl()
2523 if (!ctrl) in nvme_tcp_create_ctrl()
2524 return ERR_PTR(-ENOMEM); in nvme_tcp_create_ctrl()
2526 INIT_LIST_HEAD(&ctrl->list); in nvme_tcp_create_ctrl()
2527 ctrl->ctrl.opts = opts; in nvme_tcp_create_ctrl()
2528 ctrl->ctrl.queue_count = opts->nr_io_queues + opts->nr_write_queues + in nvme_tcp_create_ctrl()
2529 opts->nr_poll_queues + 1; in nvme_tcp_create_ctrl()
2530 ctrl->ctrl.sqsize = opts->queue_size - 1; in nvme_tcp_create_ctrl()
2531 ctrl->ctrl.kato = opts->kato; in nvme_tcp_create_ctrl()
2533 INIT_DELAYED_WORK(&ctrl->connect_work, in nvme_tcp_create_ctrl()
2535 INIT_WORK(&ctrl->err_work, nvme_tcp_error_recovery_work); in nvme_tcp_create_ctrl()
2536 INIT_WORK(&ctrl->ctrl.reset_work, nvme_reset_ctrl_work); in nvme_tcp_create_ctrl()
2538 if (!(opts->mask & NVMF_OPT_TRSVCID)) { in nvme_tcp_create_ctrl()
2539 opts->trsvcid = in nvme_tcp_create_ctrl()
2541 if (!opts->trsvcid) { in nvme_tcp_create_ctrl()
2542 ret = -ENOMEM; in nvme_tcp_create_ctrl()
2545 opts->mask |= NVMF_OPT_TRSVCID; in nvme_tcp_create_ctrl()
2549 opts->traddr, opts->trsvcid, &ctrl->addr); in nvme_tcp_create_ctrl()
2552 opts->traddr, opts->trsvcid); in nvme_tcp_create_ctrl()
2556 if (opts->mask & NVMF_OPT_HOST_TRADDR) { in nvme_tcp_create_ctrl()
2558 opts->host_traddr, NULL, &ctrl->src_addr); in nvme_tcp_create_ctrl()
2561 opts->host_traddr); in nvme_tcp_create_ctrl()
2566 if (opts->mask & NVMF_OPT_HOST_IFACE) { in nvme_tcp_create_ctrl()
2567 if (!__dev_get_by_name(&init_net, opts->host_iface)) { in nvme_tcp_create_ctrl()
2569 opts->host_iface); in nvme_tcp_create_ctrl()
2570 ret = -ENODEV; in nvme_tcp_create_ctrl()
2575 if (!opts->duplicate_connect && nvme_tcp_existing_controller(opts)) { in nvme_tcp_create_ctrl()
2576 ret = -EALREADY; in nvme_tcp_create_ctrl()
2580 ctrl->queues = kcalloc(ctrl->ctrl.queue_count, sizeof(*ctrl->queues), in nvme_tcp_create_ctrl()
2582 if (!ctrl->queues) { in nvme_tcp_create_ctrl()
2583 ret = -ENOMEM; in nvme_tcp_create_ctrl()
2587 ret = nvme_init_ctrl(&ctrl->ctrl, dev, &nvme_tcp_ctrl_ops, 0); in nvme_tcp_create_ctrl()
2591 if (!nvme_change_ctrl_state(&ctrl->ctrl, NVME_CTRL_CONNECTING)) { in nvme_tcp_create_ctrl()
2593 ret = -EINTR; in nvme_tcp_create_ctrl()
2597 ret = nvme_tcp_setup_ctrl(&ctrl->ctrl, true); in nvme_tcp_create_ctrl()
2601 dev_info(ctrl->ctrl.device, "new ctrl: NQN \"%s\", addr %pISp\n", in nvme_tcp_create_ctrl()
2602 nvmf_ctrl_subsysnqn(&ctrl->ctrl), &ctrl->addr); in nvme_tcp_create_ctrl()
2605 list_add_tail(&ctrl->list, &nvme_tcp_ctrl_list); in nvme_tcp_create_ctrl()
2608 return &ctrl->ctrl; in nvme_tcp_create_ctrl()
2611 nvme_uninit_ctrl(&ctrl->ctrl); in nvme_tcp_create_ctrl()
2612 nvme_put_ctrl(&ctrl->ctrl); in nvme_tcp_create_ctrl()
2614 ret = -EIO; in nvme_tcp_create_ctrl()
2617 kfree(ctrl->queues); in nvme_tcp_create_ctrl()
2619 kfree(ctrl); in nvme_tcp_create_ctrl()
2649 return -ENOMEM; in nvme_tcp_init_module()
2657 struct nvme_tcp_ctrl *ctrl; in nvme_tcp_cleanup_module() local
2662 list_for_each_entry(ctrl, &nvme_tcp_ctrl_list, list) in nvme_tcp_cleanup_module()
2663 nvme_delete_ctrl(&ctrl->ctrl); in nvme_tcp_cleanup_module()