Lines Matching refs:queue
66 struct nvmet_tcp_queue *queue; member
172 static inline u16 nvmet_tcp_cmd_tag(struct nvmet_tcp_queue *queue, in nvmet_tcp_cmd_tag() argument
175 if (unlikely(!queue->nr_cmds)) { in nvmet_tcp_cmd_tag()
180 return cmd - queue->cmds; in nvmet_tcp_cmd_tag()
208 nvmet_tcp_get_cmd(struct nvmet_tcp_queue *queue) in nvmet_tcp_get_cmd() argument
212 cmd = list_first_entry_or_null(&queue->free_list, in nvmet_tcp_get_cmd()
228 if (unlikely(cmd == &cmd->queue->connect)) in nvmet_tcp_put_cmd()
231 list_add_tail(&cmd->entry, &cmd->queue->free_list); in nvmet_tcp_put_cmd()
234 static inline int queue_cpu(struct nvmet_tcp_queue *queue) in queue_cpu() argument
236 return queue->sock->sk->sk_incoming_cpu; in queue_cpu()
239 static inline u8 nvmet_tcp_hdgst_len(struct nvmet_tcp_queue *queue) in nvmet_tcp_hdgst_len() argument
241 return queue->hdr_digest ? NVME_TCP_DIGEST_LENGTH : 0; in nvmet_tcp_hdgst_len()
244 static inline u8 nvmet_tcp_ddgst_len(struct nvmet_tcp_queue *queue) in nvmet_tcp_ddgst_len() argument
246 return queue->data_digest ? NVME_TCP_DIGEST_LENGTH : 0; in nvmet_tcp_ddgst_len()
259 static int nvmet_tcp_verify_hdgst(struct nvmet_tcp_queue *queue, in nvmet_tcp_verify_hdgst() argument
268 queue->idx); in nvmet_tcp_verify_hdgst()
273 nvmet_tcp_hdgst(queue->rcv_hash, pdu, len); in nvmet_tcp_verify_hdgst()
277 queue->idx, le32_to_cpu(recv_digest), in nvmet_tcp_verify_hdgst()
285 static int nvmet_tcp_check_ddgst(struct nvmet_tcp_queue *queue, void *pdu) in nvmet_tcp_check_ddgst() argument
288 u8 digest_len = nvmet_tcp_hdgst_len(queue); in nvmet_tcp_check_ddgst()
295 pr_err("queue %d: data digest flag is cleared\n", queue->idx); in nvmet_tcp_check_ddgst()
354 static void nvmet_tcp_fatal_error(struct nvmet_tcp_queue *queue) in nvmet_tcp_fatal_error() argument
356 queue->rcv_state = NVMET_TCP_RECV_ERR; in nvmet_tcp_fatal_error()
357 if (queue->nvme_sq.ctrl) in nvmet_tcp_fatal_error()
358 nvmet_ctrl_fatal_error(queue->nvme_sq.ctrl); in nvmet_tcp_fatal_error()
360 kernel_sock_shutdown(queue->sock, SHUT_RDWR); in nvmet_tcp_fatal_error()
363 static void nvmet_tcp_socket_error(struct nvmet_tcp_queue *queue, int status) in nvmet_tcp_socket_error() argument
366 kernel_sock_shutdown(queue->sock, SHUT_RDWR); in nvmet_tcp_socket_error()
368 nvmet_tcp_fatal_error(queue); in nvmet_tcp_socket_error()
436 struct nvmet_tcp_queue *queue = cmd->queue; in nvmet_setup_c2h_data_pdu() local
437 u8 hdgst = nvmet_tcp_hdgst_len(cmd->queue); in nvmet_setup_c2h_data_pdu()
438 u8 ddgst = nvmet_tcp_ddgst_len(cmd->queue); in nvmet_setup_c2h_data_pdu()
444 pdu->hdr.flags = NVME_TCP_F_DATA_LAST | (queue->nvme_sq.sqhd_disabled ? in nvmet_setup_c2h_data_pdu()
455 if (queue->data_digest) { in nvmet_setup_c2h_data_pdu()
457 nvmet_tcp_send_ddgst(queue->snd_hash, cmd); in nvmet_setup_c2h_data_pdu()
460 if (cmd->queue->hdr_digest) { in nvmet_setup_c2h_data_pdu()
462 nvmet_tcp_hdgst(queue->snd_hash, pdu, sizeof(*pdu)); in nvmet_setup_c2h_data_pdu()
469 struct nvmet_tcp_queue *queue = cmd->queue; in nvmet_setup_r2t_pdu() local
470 u8 hdgst = nvmet_tcp_hdgst_len(cmd->queue); in nvmet_setup_r2t_pdu()
482 pdu->ttag = nvmet_tcp_cmd_tag(cmd->queue, cmd); in nvmet_setup_r2t_pdu()
485 if (cmd->queue->hdr_digest) { in nvmet_setup_r2t_pdu()
487 nvmet_tcp_hdgst(queue->snd_hash, pdu, sizeof(*pdu)); in nvmet_setup_r2t_pdu()
494 struct nvmet_tcp_queue *queue = cmd->queue; in nvmet_setup_response_pdu() local
495 u8 hdgst = nvmet_tcp_hdgst_len(cmd->queue); in nvmet_setup_response_pdu()
505 if (cmd->queue->hdr_digest) { in nvmet_setup_response_pdu()
507 nvmet_tcp_hdgst(queue->snd_hash, pdu, sizeof(*pdu)); in nvmet_setup_response_pdu()
511 static void nvmet_tcp_process_resp_list(struct nvmet_tcp_queue *queue) in nvmet_tcp_process_resp_list() argument
516 for (node = llist_del_all(&queue->resp_list); node; node = node->next) { in nvmet_tcp_process_resp_list()
518 list_add(&cmd->entry, &queue->resp_send_list); in nvmet_tcp_process_resp_list()
519 queue->send_list_len++; in nvmet_tcp_process_resp_list()
523 static struct nvmet_tcp_cmd *nvmet_tcp_fetch_cmd(struct nvmet_tcp_queue *queue) in nvmet_tcp_fetch_cmd() argument
525 queue->snd_cmd = list_first_entry_or_null(&queue->resp_send_list, in nvmet_tcp_fetch_cmd()
527 if (!queue->snd_cmd) { in nvmet_tcp_fetch_cmd()
528 nvmet_tcp_process_resp_list(queue); in nvmet_tcp_fetch_cmd()
529 queue->snd_cmd = in nvmet_tcp_fetch_cmd()
530 list_first_entry_or_null(&queue->resp_send_list, in nvmet_tcp_fetch_cmd()
532 if (unlikely(!queue->snd_cmd)) in nvmet_tcp_fetch_cmd()
536 list_del_init(&queue->snd_cmd->entry); in nvmet_tcp_fetch_cmd()
537 queue->send_list_len--; in nvmet_tcp_fetch_cmd()
539 if (nvmet_tcp_need_data_out(queue->snd_cmd)) in nvmet_tcp_fetch_cmd()
540 nvmet_setup_c2h_data_pdu(queue->snd_cmd); in nvmet_tcp_fetch_cmd()
541 else if (nvmet_tcp_need_data_in(queue->snd_cmd)) in nvmet_tcp_fetch_cmd()
542 nvmet_setup_r2t_pdu(queue->snd_cmd); in nvmet_tcp_fetch_cmd()
544 nvmet_setup_response_pdu(queue->snd_cmd); in nvmet_tcp_fetch_cmd()
546 return queue->snd_cmd; in nvmet_tcp_fetch_cmd()
553 struct nvmet_tcp_queue *queue = cmd->queue; in nvmet_tcp_queue_response() local
557 if (unlikely(cmd == queue->cmd)) { in nvmet_tcp_queue_response()
566 if (queue->rcv_state == NVMET_TCP_RECV_PDU && in nvmet_tcp_queue_response()
572 llist_add(&cmd->lentry, &queue->resp_list); in nvmet_tcp_queue_response()
573 queue_work_on(queue_cpu(queue), nvmet_tcp_wq, &cmd->queue->io_work); in nvmet_tcp_queue_response()
586 u8 hdgst = nvmet_tcp_hdgst_len(cmd->queue); in nvmet_try_send_data_pdu()
590 ret = kernel_sendpage(cmd->queue->sock, virt_to_page(cmd->data_pdu), in nvmet_try_send_data_pdu()
609 struct nvmet_tcp_queue *queue = cmd->queue; in nvmet_try_send_data() local
617 if ((!last_in_batch && cmd->queue->send_list_len) || in nvmet_try_send_data()
619 queue->data_digest || !queue->nvme_sq.sqhd_disabled) in nvmet_try_send_data()
622 ret = kernel_sendpage(cmd->queue->sock, page, cmd->offset, in nvmet_try_send_data()
637 if (queue->data_digest) { in nvmet_try_send_data()
641 if (queue->nvme_sq.sqhd_disabled) { in nvmet_try_send_data()
642 cmd->queue->snd_cmd = NULL; in nvmet_try_send_data()
649 if (queue->nvme_sq.sqhd_disabled) in nvmet_try_send_data()
659 u8 hdgst = nvmet_tcp_hdgst_len(cmd->queue); in nvmet_try_send_response()
664 if (!last_in_batch && cmd->queue->send_list_len) in nvmet_try_send_response()
669 ret = kernel_sendpage(cmd->queue->sock, virt_to_page(cmd->rsp_pdu), in nvmet_try_send_response()
680 cmd->queue->snd_cmd = NULL; in nvmet_try_send_response()
687 u8 hdgst = nvmet_tcp_hdgst_len(cmd->queue); in nvmet_try_send_r2t()
692 if (!last_in_batch && cmd->queue->send_list_len) in nvmet_try_send_r2t()
697 ret = kernel_sendpage(cmd->queue->sock, virt_to_page(cmd->r2t_pdu), in nvmet_try_send_r2t()
707 cmd->queue->snd_cmd = NULL; in nvmet_try_send_r2t()
713 struct nvmet_tcp_queue *queue = cmd->queue; in nvmet_try_send_ddgst() local
722 if (!last_in_batch && cmd->queue->send_list_len) in nvmet_try_send_ddgst()
727 ret = kernel_sendmsg(queue->sock, &msg, &iov, 1, iov.iov_len); in nvmet_try_send_ddgst()
737 if (queue->nvme_sq.sqhd_disabled) { in nvmet_try_send_ddgst()
738 cmd->queue->snd_cmd = NULL; in nvmet_try_send_ddgst()
746 static int nvmet_tcp_try_send_one(struct nvmet_tcp_queue *queue, in nvmet_tcp_try_send_one() argument
749 struct nvmet_tcp_cmd *cmd = queue->snd_cmd; in nvmet_tcp_try_send_one()
752 if (!cmd || queue->state == NVMET_TCP_Q_DISCONNECTING) { in nvmet_tcp_try_send_one()
753 cmd = nvmet_tcp_fetch_cmd(queue); in nvmet_tcp_try_send_one()
795 static int nvmet_tcp_try_send(struct nvmet_tcp_queue *queue, in nvmet_tcp_try_send() argument
801 ret = nvmet_tcp_try_send_one(queue, i == budget - 1); in nvmet_tcp_try_send()
803 nvmet_tcp_socket_error(queue, ret); in nvmet_tcp_try_send()
814 static void nvmet_prepare_receive_pdu(struct nvmet_tcp_queue *queue) in nvmet_prepare_receive_pdu() argument
816 queue->offset = 0; in nvmet_prepare_receive_pdu()
817 queue->left = sizeof(struct nvme_tcp_hdr); in nvmet_prepare_receive_pdu()
818 queue->cmd = NULL; in nvmet_prepare_receive_pdu()
819 queue->rcv_state = NVMET_TCP_RECV_PDU; in nvmet_prepare_receive_pdu()
822 static void nvmet_tcp_free_crypto(struct nvmet_tcp_queue *queue) in nvmet_tcp_free_crypto() argument
824 struct crypto_ahash *tfm = crypto_ahash_reqtfm(queue->rcv_hash); in nvmet_tcp_free_crypto()
826 ahash_request_free(queue->rcv_hash); in nvmet_tcp_free_crypto()
827 ahash_request_free(queue->snd_hash); in nvmet_tcp_free_crypto()
831 static int nvmet_tcp_alloc_crypto(struct nvmet_tcp_queue *queue) in nvmet_tcp_alloc_crypto() argument
839 queue->snd_hash = ahash_request_alloc(tfm, GFP_KERNEL); in nvmet_tcp_alloc_crypto()
840 if (!queue->snd_hash) in nvmet_tcp_alloc_crypto()
842 ahash_request_set_callback(queue->snd_hash, 0, NULL, NULL); in nvmet_tcp_alloc_crypto()
844 queue->rcv_hash = ahash_request_alloc(tfm, GFP_KERNEL); in nvmet_tcp_alloc_crypto()
845 if (!queue->rcv_hash) in nvmet_tcp_alloc_crypto()
847 ahash_request_set_callback(queue->rcv_hash, 0, NULL, NULL); in nvmet_tcp_alloc_crypto()
851 ahash_request_free(queue->snd_hash); in nvmet_tcp_alloc_crypto()
858 static int nvmet_tcp_handle_icreq(struct nvmet_tcp_queue *queue) in nvmet_tcp_handle_icreq() argument
860 struct nvme_tcp_icreq_pdu *icreq = &queue->pdu.icreq; in nvmet_tcp_handle_icreq()
861 struct nvme_tcp_icresp_pdu *icresp = &queue->pdu.icresp; in nvmet_tcp_handle_icreq()
869 nvmet_tcp_fatal_error(queue); in nvmet_tcp_handle_icreq()
873 pr_err("queue %d: bad pfv %d\n", queue->idx, icreq->pfv); in nvmet_tcp_handle_icreq()
878 pr_err("queue %d: unsupported hpda %d\n", queue->idx, in nvmet_tcp_handle_icreq()
883 queue->hdr_digest = !!(icreq->digest & NVME_TCP_HDR_DIGEST_ENABLE); in nvmet_tcp_handle_icreq()
884 queue->data_digest = !!(icreq->digest & NVME_TCP_DATA_DIGEST_ENABLE); in nvmet_tcp_handle_icreq()
885 if (queue->hdr_digest || queue->data_digest) { in nvmet_tcp_handle_icreq()
886 ret = nvmet_tcp_alloc_crypto(queue); in nvmet_tcp_handle_icreq()
899 if (queue->hdr_digest) in nvmet_tcp_handle_icreq()
901 if (queue->data_digest) in nvmet_tcp_handle_icreq()
906 ret = kernel_sendmsg(queue->sock, &msg, &iov, 1, iov.iov_len); in nvmet_tcp_handle_icreq()
910 queue->state = NVMET_TCP_Q_LIVE; in nvmet_tcp_handle_icreq()
911 nvmet_prepare_receive_pdu(queue); in nvmet_tcp_handle_icreq()
914 if (queue->hdr_digest || queue->data_digest) in nvmet_tcp_handle_icreq()
915 nvmet_tcp_free_crypto(queue); in nvmet_tcp_handle_icreq()
919 static void nvmet_tcp_handle_req_failure(struct nvmet_tcp_queue *queue, in nvmet_tcp_handle_req_failure() argument
934 nvmet_prepare_receive_pdu(queue); in nvmet_tcp_handle_req_failure()
940 pr_err("queue %d: failed to map data\n", queue->idx); in nvmet_tcp_handle_req_failure()
941 nvmet_tcp_fatal_error(queue); in nvmet_tcp_handle_req_failure()
945 queue->rcv_state = NVMET_TCP_RECV_DATA; in nvmet_tcp_handle_req_failure()
950 static int nvmet_tcp_handle_h2c_data_pdu(struct nvmet_tcp_queue *queue) in nvmet_tcp_handle_h2c_data_pdu() argument
952 struct nvme_tcp_data_pdu *data = &queue->pdu.data; in nvmet_tcp_handle_h2c_data_pdu()
955 if (likely(queue->nr_cmds)) in nvmet_tcp_handle_h2c_data_pdu()
956 cmd = &queue->cmds[data->ttag]; in nvmet_tcp_handle_h2c_data_pdu()
958 cmd = &queue->connect; in nvmet_tcp_handle_h2c_data_pdu()
973 queue->cmd = cmd; in nvmet_tcp_handle_h2c_data_pdu()
974 queue->rcv_state = NVMET_TCP_RECV_DATA; in nvmet_tcp_handle_h2c_data_pdu()
979 static int nvmet_tcp_done_recv_pdu(struct nvmet_tcp_queue *queue) in nvmet_tcp_done_recv_pdu() argument
981 struct nvme_tcp_hdr *hdr = &queue->pdu.cmd.hdr; in nvmet_tcp_done_recv_pdu()
982 struct nvme_command *nvme_cmd = &queue->pdu.cmd.cmd; in nvmet_tcp_done_recv_pdu()
986 if (unlikely(queue->state == NVMET_TCP_Q_CONNECTING)) { in nvmet_tcp_done_recv_pdu()
990 nvmet_tcp_fatal_error(queue); in nvmet_tcp_done_recv_pdu()
993 return nvmet_tcp_handle_icreq(queue); in nvmet_tcp_done_recv_pdu()
997 ret = nvmet_tcp_handle_h2c_data_pdu(queue); in nvmet_tcp_done_recv_pdu()
1003 queue->cmd = nvmet_tcp_get_cmd(queue); in nvmet_tcp_done_recv_pdu()
1004 if (unlikely(!queue->cmd)) { in nvmet_tcp_done_recv_pdu()
1007 queue->idx, queue->nr_cmds, queue->send_list_len, in nvmet_tcp_done_recv_pdu()
1009 nvmet_tcp_fatal_error(queue); in nvmet_tcp_done_recv_pdu()
1013 req = &queue->cmd->req; in nvmet_tcp_done_recv_pdu()
1016 if (unlikely(!nvmet_req_init(req, &queue->nvme_cq, in nvmet_tcp_done_recv_pdu()
1017 &queue->nvme_sq, &nvmet_tcp_ops))) { in nvmet_tcp_done_recv_pdu()
1023 nvmet_tcp_handle_req_failure(queue, queue->cmd, req); in nvmet_tcp_done_recv_pdu()
1027 ret = nvmet_tcp_map_data(queue->cmd); in nvmet_tcp_done_recv_pdu()
1029 pr_err("queue %d: failed to map data\n", queue->idx); in nvmet_tcp_done_recv_pdu()
1030 if (nvmet_tcp_has_inline_data(queue->cmd)) in nvmet_tcp_done_recv_pdu()
1031 nvmet_tcp_fatal_error(queue); in nvmet_tcp_done_recv_pdu()
1038 if (nvmet_tcp_need_data_in(queue->cmd)) { in nvmet_tcp_done_recv_pdu()
1039 if (nvmet_tcp_has_inline_data(queue->cmd)) { in nvmet_tcp_done_recv_pdu()
1040 queue->rcv_state = NVMET_TCP_RECV_DATA; in nvmet_tcp_done_recv_pdu()
1041 nvmet_tcp_map_pdu_iovec(queue->cmd); in nvmet_tcp_done_recv_pdu()
1045 nvmet_tcp_queue_response(&queue->cmd->req); in nvmet_tcp_done_recv_pdu()
1049 queue->cmd->req.execute(&queue->cmd->req); in nvmet_tcp_done_recv_pdu()
1051 nvmet_prepare_receive_pdu(queue); in nvmet_tcp_done_recv_pdu()
1083 static int nvmet_tcp_try_recv_pdu(struct nvmet_tcp_queue *queue) in nvmet_tcp_try_recv_pdu() argument
1085 struct nvme_tcp_hdr *hdr = &queue->pdu.cmd.hdr; in nvmet_tcp_try_recv_pdu()
1091 iov.iov_base = (void *)&queue->pdu + queue->offset; in nvmet_tcp_try_recv_pdu()
1092 iov.iov_len = queue->left; in nvmet_tcp_try_recv_pdu()
1093 len = kernel_recvmsg(queue->sock, &msg, &iov, 1, in nvmet_tcp_try_recv_pdu()
1098 queue->offset += len; in nvmet_tcp_try_recv_pdu()
1099 queue->left -= len; in nvmet_tcp_try_recv_pdu()
1100 if (queue->left) in nvmet_tcp_try_recv_pdu()
1103 if (queue->offset == sizeof(struct nvme_tcp_hdr)) { in nvmet_tcp_try_recv_pdu()
1104 u8 hdgst = nvmet_tcp_hdgst_len(queue); in nvmet_tcp_try_recv_pdu()
1108 nvmet_tcp_fatal_error(queue); in nvmet_tcp_try_recv_pdu()
1117 queue->left = hdr->hlen - queue->offset + hdgst; in nvmet_tcp_try_recv_pdu()
1121 if (queue->hdr_digest && in nvmet_tcp_try_recv_pdu()
1122 nvmet_tcp_verify_hdgst(queue, &queue->pdu, hdr->hlen)) { in nvmet_tcp_try_recv_pdu()
1123 nvmet_tcp_fatal_error(queue); /* fatal */ in nvmet_tcp_try_recv_pdu()
1127 if (queue->data_digest && in nvmet_tcp_try_recv_pdu()
1128 nvmet_tcp_check_ddgst(queue, &queue->pdu)) { in nvmet_tcp_try_recv_pdu()
1129 nvmet_tcp_fatal_error(queue); /* fatal */ in nvmet_tcp_try_recv_pdu()
1133 return nvmet_tcp_done_recv_pdu(queue); in nvmet_tcp_try_recv_pdu()
1138 struct nvmet_tcp_queue *queue = cmd->queue; in nvmet_tcp_prep_recv_ddgst() local
1140 nvmet_tcp_recv_ddgst(queue->rcv_hash, cmd); in nvmet_tcp_prep_recv_ddgst()
1141 queue->offset = 0; in nvmet_tcp_prep_recv_ddgst()
1142 queue->left = NVME_TCP_DIGEST_LENGTH; in nvmet_tcp_prep_recv_ddgst()
1143 queue->rcv_state = NVMET_TCP_RECV_DDGST; in nvmet_tcp_prep_recv_ddgst()
1146 static int nvmet_tcp_try_recv_data(struct nvmet_tcp_queue *queue) in nvmet_tcp_try_recv_data() argument
1148 struct nvmet_tcp_cmd *cmd = queue->cmd; in nvmet_tcp_try_recv_data()
1152 ret = sock_recvmsg(cmd->queue->sock, &cmd->recv_msg, in nvmet_tcp_try_recv_data()
1162 if (queue->data_digest) { in nvmet_tcp_try_recv_data()
1170 nvmet_prepare_receive_pdu(queue); in nvmet_tcp_try_recv_data()
1174 static int nvmet_tcp_try_recv_ddgst(struct nvmet_tcp_queue *queue) in nvmet_tcp_try_recv_ddgst() argument
1176 struct nvmet_tcp_cmd *cmd = queue->cmd; in nvmet_tcp_try_recv_ddgst()
1180 .iov_base = (void *)&cmd->recv_ddgst + queue->offset, in nvmet_tcp_try_recv_ddgst()
1181 .iov_len = queue->left in nvmet_tcp_try_recv_ddgst()
1184 ret = kernel_recvmsg(queue->sock, &msg, &iov, 1, in nvmet_tcp_try_recv_ddgst()
1189 queue->offset += ret; in nvmet_tcp_try_recv_ddgst()
1190 queue->left -= ret; in nvmet_tcp_try_recv_ddgst()
1191 if (queue->left) in nvmet_tcp_try_recv_ddgst()
1194 if (queue->data_digest && cmd->exp_ddgst != cmd->recv_ddgst) { in nvmet_tcp_try_recv_ddgst()
1196 queue->idx, cmd->req.cmd->common.command_id, in nvmet_tcp_try_recv_ddgst()
1197 queue->pdu.cmd.hdr.type, le32_to_cpu(cmd->recv_ddgst), in nvmet_tcp_try_recv_ddgst()
1200 nvmet_tcp_fatal_error(queue); in nvmet_tcp_try_recv_ddgst()
1210 nvmet_prepare_receive_pdu(queue); in nvmet_tcp_try_recv_ddgst()
1214 static int nvmet_tcp_try_recv_one(struct nvmet_tcp_queue *queue) in nvmet_tcp_try_recv_one() argument
1218 if (unlikely(queue->rcv_state == NVMET_TCP_RECV_ERR)) in nvmet_tcp_try_recv_one()
1221 if (queue->rcv_state == NVMET_TCP_RECV_PDU) { in nvmet_tcp_try_recv_one()
1222 result = nvmet_tcp_try_recv_pdu(queue); in nvmet_tcp_try_recv_one()
1227 if (queue->rcv_state == NVMET_TCP_RECV_DATA) { in nvmet_tcp_try_recv_one()
1228 result = nvmet_tcp_try_recv_data(queue); in nvmet_tcp_try_recv_one()
1233 if (queue->rcv_state == NVMET_TCP_RECV_DDGST) { in nvmet_tcp_try_recv_one()
1234 result = nvmet_tcp_try_recv_ddgst(queue); in nvmet_tcp_try_recv_one()
1248 static int nvmet_tcp_try_recv(struct nvmet_tcp_queue *queue, in nvmet_tcp_try_recv() argument
1254 ret = nvmet_tcp_try_recv_one(queue); in nvmet_tcp_try_recv()
1256 nvmet_tcp_socket_error(queue, ret); in nvmet_tcp_try_recv()
1267 static void nvmet_tcp_schedule_release_queue(struct nvmet_tcp_queue *queue) in nvmet_tcp_schedule_release_queue() argument
1269 spin_lock(&queue->state_lock); in nvmet_tcp_schedule_release_queue()
1270 if (queue->state != NVMET_TCP_Q_DISCONNECTING) { in nvmet_tcp_schedule_release_queue()
1271 queue->state = NVMET_TCP_Q_DISCONNECTING; in nvmet_tcp_schedule_release_queue()
1272 schedule_work(&queue->release_work); in nvmet_tcp_schedule_release_queue()
1274 spin_unlock(&queue->state_lock); in nvmet_tcp_schedule_release_queue()
1277 static inline void nvmet_tcp_arm_queue_deadline(struct nvmet_tcp_queue *queue) in nvmet_tcp_arm_queue_deadline() argument
1279 queue->poll_end = jiffies + usecs_to_jiffies(idle_poll_period_usecs); in nvmet_tcp_arm_queue_deadline()
1282 static bool nvmet_tcp_check_queue_deadline(struct nvmet_tcp_queue *queue, in nvmet_tcp_check_queue_deadline() argument
1289 nvmet_tcp_arm_queue_deadline(queue); in nvmet_tcp_check_queue_deadline()
1291 return !time_after(jiffies, queue->poll_end); in nvmet_tcp_check_queue_deadline()
1296 struct nvmet_tcp_queue *queue = in nvmet_tcp_io_work() local
1304 ret = nvmet_tcp_try_recv(queue, NVMET_TCP_RECV_BUDGET, &ops); in nvmet_tcp_io_work()
1310 ret = nvmet_tcp_try_send(queue, NVMET_TCP_SEND_BUDGET, &ops); in nvmet_tcp_io_work()
1322 if (nvmet_tcp_check_queue_deadline(queue, ops) || pending) in nvmet_tcp_io_work()
1323 queue_work_on(queue_cpu(queue), nvmet_tcp_wq, &queue->io_work); in nvmet_tcp_io_work()
1326 static int nvmet_tcp_alloc_cmd(struct nvmet_tcp_queue *queue, in nvmet_tcp_alloc_cmd() argument
1329 u8 hdgst = nvmet_tcp_hdgst_len(queue); in nvmet_tcp_alloc_cmd()
1331 c->queue = queue; in nvmet_tcp_alloc_cmd()
1332 c->req.port = queue->port->nport; in nvmet_tcp_alloc_cmd()
1334 c->cmd_pdu = page_frag_alloc(&queue->pf_cache, in nvmet_tcp_alloc_cmd()
1340 c->rsp_pdu = page_frag_alloc(&queue->pf_cache, in nvmet_tcp_alloc_cmd()
1346 c->data_pdu = page_frag_alloc(&queue->pf_cache, in nvmet_tcp_alloc_cmd()
1351 c->r2t_pdu = page_frag_alloc(&queue->pf_cache, in nvmet_tcp_alloc_cmd()
1358 list_add_tail(&c->entry, &queue->free_list); in nvmet_tcp_alloc_cmd()
1378 static int nvmet_tcp_alloc_cmds(struct nvmet_tcp_queue *queue) in nvmet_tcp_alloc_cmds() argument
1381 int i, ret = -EINVAL, nr_cmds = queue->nr_cmds; in nvmet_tcp_alloc_cmds()
1388 ret = nvmet_tcp_alloc_cmd(queue, cmds + i); in nvmet_tcp_alloc_cmds()
1393 queue->cmds = cmds; in nvmet_tcp_alloc_cmds()
1404 static void nvmet_tcp_free_cmds(struct nvmet_tcp_queue *queue) in nvmet_tcp_free_cmds() argument
1406 struct nvmet_tcp_cmd *cmds = queue->cmds; in nvmet_tcp_free_cmds()
1409 for (i = 0; i < queue->nr_cmds; i++) in nvmet_tcp_free_cmds()
1412 nvmet_tcp_free_cmd(&queue->connect); in nvmet_tcp_free_cmds()
1416 static void nvmet_tcp_restore_socket_callbacks(struct nvmet_tcp_queue *queue) in nvmet_tcp_restore_socket_callbacks() argument
1418 struct socket *sock = queue->sock; in nvmet_tcp_restore_socket_callbacks()
1421 sock->sk->sk_data_ready = queue->data_ready; in nvmet_tcp_restore_socket_callbacks()
1422 sock->sk->sk_state_change = queue->state_change; in nvmet_tcp_restore_socket_callbacks()
1423 sock->sk->sk_write_space = queue->write_space; in nvmet_tcp_restore_socket_callbacks()
1435 static void nvmet_tcp_uninit_data_in_cmds(struct nvmet_tcp_queue *queue) in nvmet_tcp_uninit_data_in_cmds() argument
1437 struct nvmet_tcp_cmd *cmd = queue->cmds; in nvmet_tcp_uninit_data_in_cmds()
1440 for (i = 0; i < queue->nr_cmds; i++, cmd++) { in nvmet_tcp_uninit_data_in_cmds()
1448 if (!queue->nr_cmds && nvmet_tcp_need_data_in(&queue->connect)) { in nvmet_tcp_uninit_data_in_cmds()
1450 nvmet_tcp_finish_cmd(&queue->connect); in nvmet_tcp_uninit_data_in_cmds()
1457 struct nvmet_tcp_queue *queue = in nvmet_tcp_release_queue_work() local
1461 list_del_init(&queue->queue_list); in nvmet_tcp_release_queue_work()
1464 nvmet_tcp_restore_socket_callbacks(queue); in nvmet_tcp_release_queue_work()
1465 cancel_work_sync(&queue->io_work); in nvmet_tcp_release_queue_work()
1467 queue->rcv_state = NVMET_TCP_RECV_ERR; in nvmet_tcp_release_queue_work()
1469 nvmet_tcp_uninit_data_in_cmds(queue); in nvmet_tcp_release_queue_work()
1470 nvmet_sq_destroy(&queue->nvme_sq); in nvmet_tcp_release_queue_work()
1471 cancel_work_sync(&queue->io_work); in nvmet_tcp_release_queue_work()
1472 sock_release(queue->sock); in nvmet_tcp_release_queue_work()
1473 nvmet_tcp_free_cmds(queue); in nvmet_tcp_release_queue_work()
1474 if (queue->hdr_digest || queue->data_digest) in nvmet_tcp_release_queue_work()
1475 nvmet_tcp_free_crypto(queue); in nvmet_tcp_release_queue_work()
1476 ida_simple_remove(&nvmet_tcp_queue_ida, queue->idx); in nvmet_tcp_release_queue_work()
1478 page = virt_to_head_page(queue->pf_cache.va); in nvmet_tcp_release_queue_work()
1479 __page_frag_cache_drain(page, queue->pf_cache.pagecnt_bias); in nvmet_tcp_release_queue_work()
1480 kfree(queue); in nvmet_tcp_release_queue_work()
1485 struct nvmet_tcp_queue *queue; in nvmet_tcp_data_ready() local
1488 queue = sk->sk_user_data; in nvmet_tcp_data_ready()
1489 if (likely(queue)) in nvmet_tcp_data_ready()
1490 queue_work_on(queue_cpu(queue), nvmet_tcp_wq, &queue->io_work); in nvmet_tcp_data_ready()
1496 struct nvmet_tcp_queue *queue; in nvmet_tcp_write_space() local
1499 queue = sk->sk_user_data; in nvmet_tcp_write_space()
1500 if (unlikely(!queue)) in nvmet_tcp_write_space()
1503 if (unlikely(queue->state == NVMET_TCP_Q_CONNECTING)) { in nvmet_tcp_write_space()
1504 queue->write_space(sk); in nvmet_tcp_write_space()
1510 queue_work_on(queue_cpu(queue), nvmet_tcp_wq, &queue->io_work); in nvmet_tcp_write_space()
1518 struct nvmet_tcp_queue *queue; in nvmet_tcp_state_change() local
1521 queue = sk->sk_user_data; in nvmet_tcp_state_change()
1522 if (!queue) in nvmet_tcp_state_change()
1530 nvmet_tcp_schedule_release_queue(queue); in nvmet_tcp_state_change()
1534 queue->idx, sk->sk_state); in nvmet_tcp_state_change()
1540 static int nvmet_tcp_set_queue_sock(struct nvmet_tcp_queue *queue) in nvmet_tcp_set_queue_sock() argument
1542 struct socket *sock = queue->sock; in nvmet_tcp_set_queue_sock()
1547 (struct sockaddr *)&queue->sockaddr); in nvmet_tcp_set_queue_sock()
1552 (struct sockaddr *)&queue->sockaddr_peer); in nvmet_tcp_set_queue_sock()
1579 sock->sk->sk_user_data = queue; in nvmet_tcp_set_queue_sock()
1580 queue->data_ready = sock->sk->sk_data_ready; in nvmet_tcp_set_queue_sock()
1582 queue->state_change = sock->sk->sk_state_change; in nvmet_tcp_set_queue_sock()
1584 queue->write_space = sock->sk->sk_write_space; in nvmet_tcp_set_queue_sock()
1587 nvmet_tcp_arm_queue_deadline(queue); in nvmet_tcp_set_queue_sock()
1588 queue_work_on(queue_cpu(queue), nvmet_tcp_wq, &queue->io_work); in nvmet_tcp_set_queue_sock()
1598 struct nvmet_tcp_queue *queue; in nvmet_tcp_alloc_queue() local
1601 queue = kzalloc(sizeof(*queue), GFP_KERNEL); in nvmet_tcp_alloc_queue()
1602 if (!queue) in nvmet_tcp_alloc_queue()
1605 INIT_WORK(&queue->release_work, nvmet_tcp_release_queue_work); in nvmet_tcp_alloc_queue()
1606 INIT_WORK(&queue->io_work, nvmet_tcp_io_work); in nvmet_tcp_alloc_queue()
1607 queue->sock = newsock; in nvmet_tcp_alloc_queue()
1608 queue->port = port; in nvmet_tcp_alloc_queue()
1609 queue->nr_cmds = 0; in nvmet_tcp_alloc_queue()
1610 spin_lock_init(&queue->state_lock); in nvmet_tcp_alloc_queue()
1611 queue->state = NVMET_TCP_Q_CONNECTING; in nvmet_tcp_alloc_queue()
1612 INIT_LIST_HEAD(&queue->free_list); in nvmet_tcp_alloc_queue()
1613 init_llist_head(&queue->resp_list); in nvmet_tcp_alloc_queue()
1614 INIT_LIST_HEAD(&queue->resp_send_list); in nvmet_tcp_alloc_queue()
1616 queue->idx = ida_simple_get(&nvmet_tcp_queue_ida, 0, 0, GFP_KERNEL); in nvmet_tcp_alloc_queue()
1617 if (queue->idx < 0) { in nvmet_tcp_alloc_queue()
1618 ret = queue->idx; in nvmet_tcp_alloc_queue()
1622 ret = nvmet_tcp_alloc_cmd(queue, &queue->connect); in nvmet_tcp_alloc_queue()
1626 ret = nvmet_sq_init(&queue->nvme_sq); in nvmet_tcp_alloc_queue()
1630 nvmet_prepare_receive_pdu(queue); in nvmet_tcp_alloc_queue()
1633 list_add_tail(&queue->queue_list, &nvmet_tcp_queue_list); in nvmet_tcp_alloc_queue()
1636 ret = nvmet_tcp_set_queue_sock(queue); in nvmet_tcp_alloc_queue()
1643 list_del_init(&queue->queue_list); in nvmet_tcp_alloc_queue()
1645 nvmet_sq_destroy(&queue->nvme_sq); in nvmet_tcp_alloc_queue()
1647 nvmet_tcp_free_cmd(&queue->connect); in nvmet_tcp_alloc_queue()
1649 ida_simple_remove(&nvmet_tcp_queue_ida, queue->idx); in nvmet_tcp_alloc_queue()
1651 kfree(queue); in nvmet_tcp_alloc_queue()
1772 struct nvmet_tcp_queue *queue; in nvmet_tcp_destroy_port_queues() local
1775 list_for_each_entry(queue, &nvmet_tcp_queue_list, queue_list) in nvmet_tcp_destroy_port_queues()
1776 if (queue->port == port) in nvmet_tcp_destroy_port_queues()
1777 kernel_sock_shutdown(queue->sock, SHUT_RDWR); in nvmet_tcp_destroy_port_queues()
1802 struct nvmet_tcp_queue *queue; in nvmet_tcp_delete_ctrl() local
1805 list_for_each_entry(queue, &nvmet_tcp_queue_list, queue_list) in nvmet_tcp_delete_ctrl()
1806 if (queue->nvme_sq.ctrl == ctrl) in nvmet_tcp_delete_ctrl()
1807 kernel_sock_shutdown(queue->sock, SHUT_RDWR); in nvmet_tcp_delete_ctrl()
1813 struct nvmet_tcp_queue *queue = in nvmet_tcp_install_queue() local
1821 queue->nr_cmds = sq->size * 2; in nvmet_tcp_install_queue()
1822 if (nvmet_tcp_alloc_cmds(queue)) in nvmet_tcp_install_queue()
1835 struct nvmet_tcp_queue *queue = cmd->queue; in nvmet_tcp_disc_port_addr() local
1837 sprintf(traddr, "%pISc", (struct sockaddr *)&queue->sockaddr); in nvmet_tcp_disc_port_addr()
1875 struct nvmet_tcp_queue *queue; in nvmet_tcp_exit() local
1881 list_for_each_entry(queue, &nvmet_tcp_queue_list, queue_list) in nvmet_tcp_exit()
1882 kernel_sock_shutdown(queue->sock, SHUT_RDWR); in nvmet_tcp_exit()