Lines Matching +full:battery +full:- +full:profile
1 // SPDX-License-Identifier: GPL-2.0
4 * Copyright (c) 2011-2014, Intel Corporation.
8 #include <linux/blk-mq.h>
15 #include <linux/backing-dev.h>
84 * nvme_wq - hosts nvme related works that are not reset or delete
85 * nvme_reset_wq - hosts nvme reset works
86 * nvme_delete_wq - hosts nvme delete works
89 * keep-alive, periodic reconnects etc. nvme_reset_wq
131 if (test_and_set_bit(NVME_NS_DEAD, &ns->flags)) in nvme_set_queue_dying()
134 blk_set_queue_dying(ns->queue); in nvme_set_queue_dying()
135 blk_mq_unquiesce_queue(ns->queue); in nvme_set_queue_dying()
137 set_capacity_and_notify(ns->disk, 0); in nvme_set_queue_dying()
145 if (ctrl->state == NVME_CTRL_LIVE && ctrl->tagset) in nvme_queue_scan()
146 queue_work(nvme_wq, &ctrl->scan_work); in nvme_queue_scan()
157 if (ctrl->state != NVME_CTRL_RESETTING) in nvme_try_sched_reset()
158 return -EBUSY; in nvme_try_sched_reset()
159 if (!queue_work(nvme_reset_wq, &ctrl->reset_work)) in nvme_try_sched_reset()
160 return -EBUSY; in nvme_try_sched_reset()
170 if (ctrl->state != NVME_CTRL_CONNECTING) in nvme_failfast_work()
173 set_bit(NVME_CTRL_FAILFAST_EXPIRED, &ctrl->flags); in nvme_failfast_work()
174 dev_info(ctrl->device, "failfast expired\n"); in nvme_failfast_work()
180 if (!ctrl->opts || ctrl->opts->fast_io_fail_tmo == -1) in nvme_start_failfast_work()
183 schedule_delayed_work(&ctrl->failfast_work, in nvme_start_failfast_work()
184 ctrl->opts->fast_io_fail_tmo * HZ); in nvme_start_failfast_work()
189 if (!ctrl->opts) in nvme_stop_failfast_work()
192 cancel_delayed_work_sync(&ctrl->failfast_work); in nvme_stop_failfast_work()
193 clear_bit(NVME_CTRL_FAILFAST_EXPIRED, &ctrl->flags); in nvme_stop_failfast_work()
200 return -EBUSY; in nvme_reset_ctrl()
201 if (!queue_work(nvme_reset_wq, &ctrl->reset_work)) in nvme_reset_ctrl()
202 return -EBUSY; in nvme_reset_ctrl()
213 flush_work(&ctrl->reset_work); in nvme_reset_ctrl_sync()
214 if (ctrl->state != NVME_CTRL_LIVE) in nvme_reset_ctrl_sync()
215 ret = -ENETRESET; in nvme_reset_ctrl_sync()
223 dev_info(ctrl->device, in nvme_do_delete_ctrl()
224 "Removing ctrl: NQN \"%s\"\n", ctrl->opts->subsysnqn); in nvme_do_delete_ctrl()
226 flush_work(&ctrl->reset_work); in nvme_do_delete_ctrl()
229 ctrl->ops->delete_ctrl(ctrl); in nvme_do_delete_ctrl()
244 return -EBUSY; in nvme_delete_ctrl()
245 if (!queue_work(nvme_delete_wq, &ctrl->delete_work)) in nvme_delete_ctrl()
246 return -EBUSY; in nvme_delete_ctrl()
255 * since ->delete_ctrl can free the controller. in nvme_delete_ctrl_sync()
311 crd = (nvme_req(req)->status & NVME_SC_CRD) >> 11; in nvme_retry_req()
313 delay = nvme_req(req)->ctrl->crdt[crd - 1] * 100; in nvme_retry_req()
315 nvme_req(req)->retries++; in nvme_retry_req()
317 blk_mq_delay_kick_requeue_list(req->q, delay); in nvme_retry_req()
328 if (likely(nvme_req(req)->status == 0)) in nvme_decide_disposition()
332 (nvme_req(req)->status & NVME_SC_DNR) || in nvme_decide_disposition()
333 nvme_req(req)->retries >= nvme_max_retries) in nvme_decide_disposition()
336 if (req->cmd_flags & REQ_NVME_MPATH) { in nvme_decide_disposition()
337 if (nvme_is_path_error(nvme_req(req)->status) || in nvme_decide_disposition()
338 blk_queue_dying(req->q)) in nvme_decide_disposition()
341 if (blk_queue_dying(req->q)) in nvme_decide_disposition()
350 blk_status_t status = nvme_error_status(nvme_req(req)->status); in nvme_end_req()
354 req->__sector = nvme_lba_to_sect(req->q->queuedata, in nvme_end_req()
355 le64_to_cpu(nvme_req(req)->result.u64)); in nvme_end_req()
366 if (nvme_req(req)->ctrl->kas) in nvme_complete_rq()
367 nvme_req(req)->ctrl->comp_seen = true; in nvme_complete_rq()
384 * Called to unwind from ->queue_rq on a failed command submission so that the
391 nvme_req(req)->status = NVME_SC_HOST_PATH_ERROR; in nvme_host_path_error()
400 dev_dbg_ratelimited(((struct nvme_ctrl *) data)->device, in nvme_cancel_request()
401 "Cancelling I/O %d", req->tag); in nvme_cancel_request()
407 nvme_req(req)->status = NVME_SC_HOST_ABORTED_CMD; in nvme_cancel_request()
408 nvme_req(req)->flags |= NVME_REQ_CANCELLED; in nvme_cancel_request()
416 if (ctrl->tagset) { in nvme_cancel_tagset()
417 blk_mq_tagset_busy_iter(ctrl->tagset, in nvme_cancel_tagset()
419 blk_mq_tagset_wait_completed_request(ctrl->tagset); in nvme_cancel_tagset()
426 if (ctrl->admin_tagset) { in nvme_cancel_admin_tagset()
427 blk_mq_tagset_busy_iter(ctrl->admin_tagset, in nvme_cancel_admin_tagset()
429 blk_mq_tagset_wait_completed_request(ctrl->admin_tagset); in nvme_cancel_admin_tagset()
441 spin_lock_irqsave(&ctrl->lock, flags); in nvme_change_ctrl_state()
443 old_state = ctrl->state; in nvme_change_ctrl_state()
511 ctrl->state = new_state; in nvme_change_ctrl_state()
512 wake_up_all(&ctrl->state_wq); in nvme_change_ctrl_state()
515 spin_unlock_irqrestore(&ctrl->lock, flags); in nvme_change_ctrl_state()
519 if (ctrl->state == NVME_CTRL_LIVE) { in nvme_change_ctrl_state()
523 } else if (ctrl->state == NVME_CTRL_CONNECTING && in nvme_change_ctrl_state()
536 switch (ctrl->state) { in nvme_state_terminal()
547 WARN_ONCE(1, "Unhandled ctrl state:%d", ctrl->state); in nvme_state_terminal()
558 wait_event(ctrl->state_wq, in nvme_wait_reset()
561 return ctrl->state == NVME_CTRL_RESETTING; in nvme_wait_reset()
571 ida_simple_remove(&head->subsys->ns_ida, head->instance); in nvme_free_ns_head()
572 cleanup_srcu_struct(&head->srcu); in nvme_free_ns_head()
573 nvme_put_subsystem(head->subsys); in nvme_free_ns_head()
579 return kref_get_unless_zero(&head->ref); in nvme_tryget_ns_head()
584 kref_put(&head->ref, nvme_free_ns_head); in nvme_put_ns_head()
591 put_disk(ns->disk); in nvme_free_ns()
592 nvme_put_ns_head(ns->head); in nvme_free_ns()
593 nvme_put_ctrl(ns->ctrl); in nvme_free_ns()
599 return kref_get_unless_zero(&ns->kref); in nvme_get_ns()
604 kref_put(&ns->kref, nvme_free_ns); in nvme_put_ns()
610 nvme_req(req)->status = 0; in nvme_clear_nvme_request()
611 nvme_req(req)->retries = 0; in nvme_clear_nvme_request()
612 nvme_req(req)->flags = 0; in nvme_clear_nvme_request()
613 req->rq_flags |= RQF_DONTPREP; in nvme_clear_nvme_request()
624 if (req->q->queuedata) in nvme_init_request()
625 req->timeout = NVME_IO_TIMEOUT; in nvme_init_request()
627 req->timeout = NVME_ADMIN_TIMEOUT; in nvme_init_request()
630 cmd->common.flags &= ~NVME_CMD_SGL_ALL; in nvme_init_request()
632 req->cmd_flags |= REQ_FAILFAST_DRIVER; in nvme_init_request()
633 if (req->mq_hctx->type == HCTX_TYPE_POLL) in nvme_init_request()
634 req->cmd_flags |= REQ_HIPRI; in nvme_init_request()
636 memcpy(nvme_req(req)->cmd, cmd, sizeof(*cmd)); in nvme_init_request()
657 qid ? qid - 1 : 0); in nvme_alloc_request_qid()
675 if (ctrl->state != NVME_CTRL_DELETING_NOIO && in nvme_fail_nonready_command()
676 ctrl->state != NVME_CTRL_DEAD && in nvme_fail_nonready_command()
677 !test_bit(NVME_CTRL_FAILFAST_EXPIRED, &ctrl->flags) && in nvme_fail_nonready_command()
678 !blk_noretry_request(rq) && !(rq->cmd_flags & REQ_NVME_MPATH)) in nvme_fail_nonready_command()
697 if (rq->q == ctrl->admin_q && (req->flags & NVME_REQ_USERCMD)) in __nvme_check_ready()
700 if (ctrl->ops->flags & NVME_F_FABRICS) { in __nvme_check_ready()
706 switch (ctrl->state) { in __nvme_check_ready()
708 if (blk_rq_is_passthrough(rq) && nvme_is_fabrics(req->cmd) && in __nvme_check_ready()
709 req->cmd->fabrics.fctype == nvme_fabrics_type_connect) in __nvme_check_ready()
734 return nvme_submit_sync_cmd(ctrl->admin_q, &c, NULL, 0); in nvme_toggle_streams()
760 return nvme_submit_sync_cmd(ctrl->admin_q, &c, s, sizeof(*s)); in nvme_get_stream_params()
768 if (!(ctrl->oacs & NVME_CTRL_OACS_DIRECTIVES)) in nvme_configure_directives()
781 ctrl->nssa = le16_to_cpu(s.nssa); in nvme_configure_directives()
782 if (ctrl->nssa < BLK_MAX_WRITE_HINTS - 1) { in nvme_configure_directives()
783 dev_info(ctrl->device, "too few streams (%u) available\n", in nvme_configure_directives()
784 ctrl->nssa); in nvme_configure_directives()
788 ctrl->nr_streams = min_t(u16, ctrl->nssa, BLK_MAX_WRITE_HINTS - 1); in nvme_configure_directives()
789 dev_info(ctrl->device, "Using %u streams\n", ctrl->nr_streams); in nvme_configure_directives()
805 enum rw_hint streamid = req->write_hint; in nvme_assign_write_stream()
810 streamid--; in nvme_assign_write_stream()
811 if (WARN_ON_ONCE(streamid > ctrl->nr_streams)) in nvme_assign_write_stream()
818 if (streamid < ARRAY_SIZE(req->q->write_hints)) in nvme_assign_write_stream()
819 req->q->write_hints[streamid] += blk_rq_bytes(req) >> 9; in nvme_assign_write_stream()
825 cmnd->common.opcode = nvme_cmd_flush; in nvme_setup_flush()
826 cmnd->common.nsid = cpu_to_le32(ns->head->ns_id); in nvme_setup_flush()
850 if (test_and_set_bit_lock(0, &ns->ctrl->discard_page_busy)) in nvme_setup_discard()
853 range = page_address(ns->ctrl->discard_page); in nvme_setup_discard()
857 u64 slba = nvme_sect_to_lba(ns, bio->bi_iter.bi_sector); in nvme_setup_discard()
858 u32 nlb = bio->bi_iter.bi_size >> ns->lba_shift; in nvme_setup_discard()
869 if (virt_to_page(range) == ns->ctrl->discard_page) in nvme_setup_discard()
870 clear_bit_unlock(0, &ns->ctrl->discard_page_busy); in nvme_setup_discard()
876 cmnd->dsm.opcode = nvme_cmd_dsm; in nvme_setup_discard()
877 cmnd->dsm.nsid = cpu_to_le32(ns->head->ns_id); in nvme_setup_discard()
878 cmnd->dsm.nr = cpu_to_le32(segments - 1); in nvme_setup_discard()
879 cmnd->dsm.attributes = cpu_to_le32(NVME_DSMGMT_AD); in nvme_setup_discard()
881 req->special_vec.bv_page = virt_to_page(range); in nvme_setup_discard()
882 req->special_vec.bv_offset = offset_in_page(range); in nvme_setup_discard()
883 req->special_vec.bv_len = alloc_size; in nvme_setup_discard()
884 req->rq_flags |= RQF_SPECIAL_PAYLOAD; in nvme_setup_discard()
892 if (ns->ctrl->quirks & NVME_QUIRK_DEALLOCATE_ZEROES) in nvme_setup_write_zeroes()
895 cmnd->write_zeroes.opcode = nvme_cmd_write_zeroes; in nvme_setup_write_zeroes()
896 cmnd->write_zeroes.nsid = cpu_to_le32(ns->head->ns_id); in nvme_setup_write_zeroes()
897 cmnd->write_zeroes.slba = in nvme_setup_write_zeroes()
899 cmnd->write_zeroes.length = in nvme_setup_write_zeroes()
900 cpu_to_le16((blk_rq_bytes(req) >> ns->lba_shift) - 1); in nvme_setup_write_zeroes()
902 cmnd->write_zeroes.control = cpu_to_le16(NVME_RW_PRINFO_PRACT); in nvme_setup_write_zeroes()
904 cmnd->write_zeroes.control = 0; in nvme_setup_write_zeroes()
912 struct nvme_ctrl *ctrl = ns->ctrl; in nvme_setup_rw()
916 if (req->cmd_flags & REQ_FUA) in nvme_setup_rw()
918 if (req->cmd_flags & (REQ_FAILFAST_DEV | REQ_RAHEAD)) in nvme_setup_rw()
921 if (req->cmd_flags & REQ_RAHEAD) in nvme_setup_rw()
924 cmnd->rw.opcode = op; in nvme_setup_rw()
925 cmnd->rw.nsid = cpu_to_le32(ns->head->ns_id); in nvme_setup_rw()
926 cmnd->rw.slba = cpu_to_le64(nvme_sect_to_lba(ns, blk_rq_pos(req))); in nvme_setup_rw()
927 cmnd->rw.length = cpu_to_le16((blk_rq_bytes(req) >> ns->lba_shift) - 1); in nvme_setup_rw()
929 if (req_op(req) == REQ_OP_WRITE && ctrl->nr_streams) in nvme_setup_rw()
932 if (ns->ms) { in nvme_setup_rw()
945 switch (ns->pi_type) { in nvme_setup_rw()
955 cmnd->rw.reftag = cpu_to_le32(t10_pi_ref_tag(req)); in nvme_setup_rw()
960 cmnd->rw.control = cpu_to_le16(control); in nvme_setup_rw()
961 cmnd->rw.dsmgmt = cpu_to_le32(dsmgmt); in nvme_setup_rw()
967 if (req->rq_flags & RQF_SPECIAL_PAYLOAD) { in nvme_cleanup_cmd()
968 struct nvme_ctrl *ctrl = nvme_req(req)->ctrl; in nvme_cleanup_cmd()
970 if (req->special_vec.bv_page == ctrl->discard_page) in nvme_cleanup_cmd()
971 clear_bit_unlock(0, &ctrl->discard_page_busy); in nvme_cleanup_cmd()
973 kfree(bvec_virt(&req->special_vec)); in nvme_cleanup_cmd()
980 struct nvme_command *cmd = nvme_req(req)->cmd; in nvme_setup_cmd()
981 struct nvme_ctrl *ctrl = nvme_req(req)->ctrl; in nvme_setup_cmd()
984 if (!(req->rq_flags & RQF_DONTPREP)) { in nvme_setup_cmd()
1030 if (!(ctrl->quirks & NVME_QUIRK_SKIP_CID_GEN)) in nvme_setup_cmd()
1031 nvme_req(req)->genctr++; in nvme_setup_cmd()
1032 cmd->common.command_id = nvme_cid(req); in nvme_setup_cmd()
1050 if (nvme_req(rq)->flags & NVME_REQ_CANCELLED) in nvme_execute_rq()
1051 return -EINTR; in nvme_execute_rq()
1052 if (nvme_req(rq)->status) in nvme_execute_rq()
1053 return nvme_req(rq)->status; in nvme_execute_rq()
1077 req->timeout = timeout; in __nvme_submit_sync_cmd()
1087 *result = nvme_req(req)->result; in __nvme_submit_sync_cmd()
1121 if (ns->head->effects) in nvme_command_effects()
1122 effects = le32_to_cpu(ns->head->effects->iocs[opcode]); in nvme_command_effects()
1124 dev_warn_once(ctrl->device, in nvme_command_effects()
1130 if (ctrl->effects) in nvme_command_effects()
1131 effects = le32_to_cpu(ctrl->effects->acs[opcode]); in nvme_command_effects()
1148 mutex_lock(&ctrl->scan_lock); in nvme_passthru_start()
1149 mutex_lock(&ctrl->subsys->lock); in nvme_passthru_start()
1150 nvme_mpath_start_freeze(ctrl->subsys); in nvme_passthru_start()
1151 nvme_mpath_wait_freeze(ctrl->subsys); in nvme_passthru_start()
1163 nvme_mpath_unfreeze(ctrl->subsys); in nvme_passthru_end()
1164 mutex_unlock(&ctrl->subsys->lock); in nvme_passthru_end()
1166 mutex_unlock(&ctrl->scan_lock); in nvme_passthru_end()
1172 flush_work(&ctrl->scan_work); in nvme_passthru_end()
1175 switch (cmd->common.opcode) { in nvme_passthru_end()
1177 switch (le32_to_cpu(cmd->common.cdw10) & 0xFF) { in nvme_passthru_end()
1198 struct nvme_command *cmd = nvme_req(rq)->cmd; in nvme_execute_passthru_rq()
1199 struct nvme_ctrl *ctrl = nvme_req(rq)->ctrl; in nvme_execute_passthru_rq()
1200 struct nvme_ns *ns = rq->q->queuedata; in nvme_execute_passthru_rq()
1201 struct gendisk *disk = ns ? ns->disk : NULL; in nvme_execute_passthru_rq()
1205 effects = nvme_passthru_start(ctrl, ns, cmd->common.opcode); in nvme_execute_passthru_rq()
1222 queue_delayed_work(nvme_wq, &ctrl->ka_work, ctrl->kato * HZ / 2); in nvme_queue_keep_alive_work()
1227 struct nvme_ctrl *ctrl = rq->end_io_data; in nvme_keep_alive_end_io()
1234 dev_err(ctrl->device, in nvme_keep_alive_end_io()
1240 ctrl->comp_seen = false; in nvme_keep_alive_end_io()
1241 spin_lock_irqsave(&ctrl->lock, flags); in nvme_keep_alive_end_io()
1242 if (ctrl->state == NVME_CTRL_LIVE || in nvme_keep_alive_end_io()
1243 ctrl->state == NVME_CTRL_CONNECTING) in nvme_keep_alive_end_io()
1245 spin_unlock_irqrestore(&ctrl->lock, flags); in nvme_keep_alive_end_io()
1254 bool comp_seen = ctrl->comp_seen; in nvme_keep_alive_work()
1257 if ((ctrl->ctratt & NVME_CTRL_ATTR_TBKAS) && comp_seen) { in nvme_keep_alive_work()
1258 dev_dbg(ctrl->device, in nvme_keep_alive_work()
1259 "reschedule traffic based keep-alive timer\n"); in nvme_keep_alive_work()
1260 ctrl->comp_seen = false; in nvme_keep_alive_work()
1265 rq = nvme_alloc_request(ctrl->admin_q, &ctrl->ka_cmd, in nvme_keep_alive_work()
1269 dev_err(ctrl->device, "keep-alive failed: %ld\n", PTR_ERR(rq)); in nvme_keep_alive_work()
1274 rq->timeout = ctrl->kato * HZ; in nvme_keep_alive_work()
1275 rq->end_io_data = ctrl; in nvme_keep_alive_work()
1281 if (unlikely(ctrl->kato == 0)) in nvme_start_keep_alive()
1289 if (unlikely(ctrl->kato == 0)) in nvme_stop_keep_alive()
1292 cancel_delayed_work_sync(&ctrl->ka_work); in nvme_stop_keep_alive()
1300 DIV_ROUND_UP(le32_to_cpu(cmd->common.cdw11), 1000); in nvme_update_keep_alive()
1302 dev_info(ctrl->device, in nvme_update_keep_alive()
1304 ctrl->kato * 1000 / 2, new_kato * 1000 / 2); in nvme_update_keep_alive()
1307 ctrl->kato = new_kato; in nvme_update_keep_alive()
1319 if (ctrl->quirks & NVME_QUIRK_IDENTIFY_CNS) in nvme_ctrl_limited_cns()
1320 return ctrl->vs < NVME_VS(1, 2, 0); in nvme_ctrl_limited_cns()
1321 return ctrl->vs < NVME_VS(1, 1, 0); in nvme_ctrl_limited_cns()
1329 /* gcc-4.4.4 (at least) has issues with initializers and anon unions */ in nvme_identify_ctrl()
1335 return -ENOMEM; in nvme_identify_ctrl()
1337 error = nvme_submit_sync_cmd(dev->admin_q, &c, *id, in nvme_identify_ctrl()
1350 switch (cur->nidt) { in nvme_process_ns_desc()
1352 if (cur->nidl != NVME_NIDT_EUI64_LEN) { in nvme_process_ns_desc()
1353 dev_warn(ctrl->device, "%s %d for NVME_NIDT_EUI64\n", in nvme_process_ns_desc()
1354 warn_str, cur->nidl); in nvme_process_ns_desc()
1355 return -1; in nvme_process_ns_desc()
1357 memcpy(ids->eui64, data + sizeof(*cur), NVME_NIDT_EUI64_LEN); in nvme_process_ns_desc()
1360 if (cur->nidl != NVME_NIDT_NGUID_LEN) { in nvme_process_ns_desc()
1361 dev_warn(ctrl->device, "%s %d for NVME_NIDT_NGUID\n", in nvme_process_ns_desc()
1362 warn_str, cur->nidl); in nvme_process_ns_desc()
1363 return -1; in nvme_process_ns_desc()
1365 memcpy(ids->nguid, data + sizeof(*cur), NVME_NIDT_NGUID_LEN); in nvme_process_ns_desc()
1368 if (cur->nidl != NVME_NIDT_UUID_LEN) { in nvme_process_ns_desc()
1369 dev_warn(ctrl->device, "%s %d for NVME_NIDT_UUID\n", in nvme_process_ns_desc()
1370 warn_str, cur->nidl); in nvme_process_ns_desc()
1371 return -1; in nvme_process_ns_desc()
1373 uuid_copy(&ids->uuid, data + sizeof(*cur)); in nvme_process_ns_desc()
1376 if (cur->nidl != NVME_NIDT_CSI_LEN) { in nvme_process_ns_desc()
1377 dev_warn(ctrl->device, "%s %d for NVME_NIDT_CSI\n", in nvme_process_ns_desc()
1378 warn_str, cur->nidl); in nvme_process_ns_desc()
1379 return -1; in nvme_process_ns_desc()
1381 memcpy(&ids->csi, data + sizeof(*cur), NVME_NIDT_CSI_LEN); in nvme_process_ns_desc()
1386 return cur->nidl; in nvme_process_ns_desc()
1398 if (ctrl->vs < NVME_VS(1, 3, 0) && !nvme_multi_css(ctrl)) in nvme_identify_ns_descs()
1400 if (ctrl->quirks & NVME_QUIRK_NO_NS_DESC_LIST) in nvme_identify_ns_descs()
1409 return -ENOMEM; in nvme_identify_ns_descs()
1411 status = nvme_submit_sync_cmd(ctrl->admin_q, &c, data, in nvme_identify_ns_descs()
1414 dev_warn(ctrl->device, in nvme_identify_ns_descs()
1423 if (cur->nidl == 0) in nvme_identify_ns_descs()
1434 dev_warn(ctrl->device, "Command set not reported for nsid:%d\n", in nvme_identify_ns_descs()
1436 status = -EINVAL; in nvme_identify_ns_descs()
1450 /* gcc-4.4.4 (at least) has issues with initializers and anon unions */ in nvme_identify_ns()
1457 return -ENOMEM; in nvme_identify_ns()
1459 error = nvme_submit_sync_cmd(ctrl->admin_q, &c, *id, sizeof(**id)); in nvme_identify_ns()
1461 dev_warn(ctrl->device, "Identify namespace failed (%d)\n", error); in nvme_identify_ns()
1466 if ((*id)->ncap == 0) /* namespace not allocated or attached */ in nvme_identify_ns()
1469 if (ctrl->vs >= NVME_VS(1, 1, 0) && in nvme_identify_ns()
1470 !memchr_inv(ids->eui64, 0, sizeof(ids->eui64))) in nvme_identify_ns()
1471 memcpy(ids->eui64, (*id)->eui64, sizeof(ids->eui64)); in nvme_identify_ns()
1472 if (ctrl->vs >= NVME_VS(1, 2, 0) && in nvme_identify_ns()
1473 !memchr_inv(ids->nguid, 0, sizeof(ids->nguid))) in nvme_identify_ns()
1474 memcpy(ids->nguid, (*id)->nguid, sizeof(ids->nguid)); in nvme_identify_ns()
1494 ret = __nvme_submit_sync_cmd(dev->admin_q, &c, &res, in nvme_features()
1521 u32 q_count = (*count - 1) | ((*count - 1) << 16); in nvme_set_queue_count()
1536 dev_err(ctrl->device, "Could not set queue count (%d)\n", status); in nvme_set_queue_count()
1553 u32 result, supported_aens = ctrl->oaes & NVME_AEN_SUPPORTED; in nvme_enable_aen()
1562 dev_warn(ctrl->device, "Failed to configure AEN (cfg %x)\n", in nvme_enable_aen()
1565 queue_work(nvme_wq, &ctrl->async_event_work); in nvme_enable_aen()
1572 if (WARN_ON_ONCE(nvme_ns_head_multipath(ns->head))) in nvme_ns_open()
1576 if (!try_module_get(ns->ctrl->ops->module)) in nvme_ns_open()
1584 return -ENXIO; in nvme_ns_open()
1590 module_put(ns->ctrl->ops->module); in nvme_ns_release()
1596 return nvme_ns_open(bdev->bd_disk->private_data); in nvme_open()
1601 nvme_ns_release(disk->private_data); in nvme_release()
1607 geo->heads = 1 << 6; in nvme_getgeo()
1608 geo->sectors = 1 << 5; in nvme_getgeo()
1609 geo->cylinders = get_capacity(bdev->bd_disk) >> 11; in nvme_getgeo()
1621 integrity.profile = &t10_pi_type3_crc; in nvme_init_integrity()
1627 integrity.profile = &t10_pi_type1_crc; in nvme_init_integrity()
1632 integrity.profile = NULL; in nvme_init_integrity()
1637 blk_queue_max_integrity_segments(disk->queue, max_integrity_segments); in nvme_init_integrity()
1648 struct nvme_ctrl *ctrl = ns->ctrl; in nvme_config_discard()
1649 struct request_queue *queue = disk->queue; in nvme_config_discard()
1652 if (ctrl->max_discard_sectors == 0) { in nvme_config_discard()
1657 if (ctrl->nr_streams && ns->sws && ns->sgs) in nvme_config_discard()
1658 size *= ns->sws * ns->sgs; in nvme_config_discard()
1663 queue->limits.discard_alignment = 0; in nvme_config_discard()
1664 queue->limits.discard_granularity = size; in nvme_config_discard()
1670 blk_queue_max_discard_sectors(queue, ctrl->max_discard_sectors); in nvme_config_discard()
1671 blk_queue_max_discard_segments(queue, ctrl->max_discard_segments); in nvme_config_discard()
1673 if (ctrl->quirks & NVME_QUIRK_DEALLOCATE_ZEROES) in nvme_config_discard()
1679 return !uuid_is_null(&ids->uuid) || in nvme_ns_ids_valid()
1680 memchr_inv(ids->nguid, 0, sizeof(ids->nguid)) || in nvme_ns_ids_valid()
1681 memchr_inv(ids->eui64, 0, sizeof(ids->eui64)); in nvme_ns_ids_valid()
1686 return uuid_equal(&a->uuid, &b->uuid) && in nvme_ns_ids_equal()
1687 memcmp(&a->nguid, &b->nguid, sizeof(a->nguid)) == 0 && in nvme_ns_ids_equal()
1688 memcmp(&a->eui64, &b->eui64, sizeof(a->eui64)) == 0 && in nvme_ns_ids_equal()
1689 a->csi == b->csi; in nvme_ns_ids_equal()
1698 if (!ctrl->nr_streams) in nvme_setup_streams_ns()
1701 ret = nvme_get_stream_params(ctrl, &s, ns->head->ns_id); in nvme_setup_streams_ns()
1705 ns->sws = le32_to_cpu(s.sws); in nvme_setup_streams_ns()
1706 ns->sgs = le16_to_cpu(s.sgs); in nvme_setup_streams_ns()
1708 if (ns->sws) { in nvme_setup_streams_ns()
1709 *phys_bs = ns->sws * (1 << ns->lba_shift); in nvme_setup_streams_ns()
1710 if (ns->sgs) in nvme_setup_streams_ns()
1711 *io_opt = *phys_bs * ns->sgs; in nvme_setup_streams_ns()
1719 struct nvme_ctrl *ctrl = ns->ctrl; in nvme_configure_metadata()
1725 ns->ms = le16_to_cpu(id->lbaf[id->flbas & NVME_NS_FLBAS_LBA_MASK].ms); in nvme_configure_metadata()
1726 if (ns->ms == sizeof(struct t10_pi_tuple)) in nvme_configure_metadata()
1727 ns->pi_type = id->dps & NVME_NS_DPS_PI_MASK; in nvme_configure_metadata()
1729 ns->pi_type = 0; in nvme_configure_metadata()
1731 ns->features &= ~(NVME_NS_METADATA_SUPPORTED | NVME_NS_EXT_LBAS); in nvme_configure_metadata()
1732 if (!ns->ms || !(ctrl->ops->flags & NVME_F_METADATA_SUPPORTED)) in nvme_configure_metadata()
1734 if (ctrl->ops->flags & NVME_F_FABRICS) { in nvme_configure_metadata()
1740 if (WARN_ON_ONCE(!(id->flbas & NVME_NS_FLBAS_META_EXT))) in nvme_configure_metadata()
1741 return -EINVAL; in nvme_configure_metadata()
1742 if (ctrl->max_integrity_segments) in nvme_configure_metadata()
1743 ns->features |= in nvme_configure_metadata()
1752 if (id->flbas & NVME_NS_FLBAS_META_EXT) in nvme_configure_metadata()
1753 ns->features |= NVME_NS_EXT_LBAS; in nvme_configure_metadata()
1755 ns->features |= NVME_NS_METADATA_SUPPORTED; in nvme_configure_metadata()
1764 bool vwc = ctrl->vwc & NVME_CTRL_VWC_PRESENT; in nvme_set_queue_limits()
1766 if (ctrl->max_hw_sectors) { in nvme_set_queue_limits()
1768 (ctrl->max_hw_sectors / (NVME_CTRL_PAGE_SIZE >> 9)) + 1; in nvme_set_queue_limits()
1770 max_segments = min_not_zero(max_segments, ctrl->max_segments); in nvme_set_queue_limits()
1771 blk_queue_max_hw_sectors(q, ctrl->max_hw_sectors); in nvme_set_queue_limits()
1774 blk_queue_virt_boundary(q, NVME_CTRL_PAGE_SIZE - 1); in nvme_set_queue_limits()
1782 sector_t capacity = nvme_lba_to_sect(ns, le64_to_cpu(id->nsze)); in nvme_update_disk_info()
1783 unsigned short bs = 1 << ns->lba_shift; in nvme_update_disk_info()
1790 if (ns->lba_shift > PAGE_SHIFT) { in nvme_update_disk_info()
1798 nvme_setup_streams_ns(ns->ctrl, ns, &phys_bs, &io_opt); in nvme_update_disk_info()
1799 if (id->nabo == 0) { in nvme_update_disk_info()
1805 if (id->nsfeat & NVME_NS_FEAT_ATOMICS && id->nawupf) in nvme_update_disk_info()
1806 atomic_bs = (1 + le16_to_cpu(id->nawupf)) * bs; in nvme_update_disk_info()
1808 atomic_bs = (1 + ns->ctrl->subsys->awupf) * bs; in nvme_update_disk_info()
1811 if (id->nsfeat & NVME_NS_FEAT_IO_OPT) { in nvme_update_disk_info()
1813 phys_bs = bs * (1 + le16_to_cpu(id->npwg)); in nvme_update_disk_info()
1815 io_opt = bs * (1 + le16_to_cpu(id->nows)); in nvme_update_disk_info()
1818 blk_queue_logical_block_size(disk->queue, bs); in nvme_update_disk_info()
1824 blk_queue_physical_block_size(disk->queue, min(phys_bs, atomic_bs)); in nvme_update_disk_info()
1825 blk_queue_io_min(disk->queue, phys_bs); in nvme_update_disk_info()
1826 blk_queue_io_opt(disk->queue, io_opt); in nvme_update_disk_info()
1829 * Register a metadata profile for PI, or the plain non-integrity NVMe in nvme_update_disk_info()
1834 if (ns->ms) { in nvme_update_disk_info()
1836 (ns->features & NVME_NS_METADATA_SUPPORTED)) in nvme_update_disk_info()
1837 nvme_init_integrity(disk, ns->ms, ns->pi_type, in nvme_update_disk_info()
1838 ns->ctrl->max_integrity_segments); in nvme_update_disk_info()
1846 blk_queue_max_write_zeroes_sectors(disk->queue, in nvme_update_disk_info()
1847 ns->ctrl->max_zeroes_sectors); in nvme_update_disk_info()
1849 set_disk_ro(disk, (id->nsattr & NVME_NS_ATTR_RO) || in nvme_update_disk_info()
1850 test_bit(NVME_NS_FORCE_RO, &ns->flags)); in nvme_update_disk_info()
1861 struct nvme_ctrl *ctrl = ns->ctrl; in nvme_set_chunk_sectors()
1864 if ((ctrl->quirks & NVME_QUIRK_STRIPE_SIZE) && in nvme_set_chunk_sectors()
1865 is_power_of_2(ctrl->max_hw_sectors)) in nvme_set_chunk_sectors()
1866 iob = ctrl->max_hw_sectors; in nvme_set_chunk_sectors()
1868 iob = nvme_lba_to_sect(ns, le16_to_cpu(id->noiob)); in nvme_set_chunk_sectors()
1874 if (nvme_first_scan(ns->disk)) in nvme_set_chunk_sectors()
1876 ns->disk->disk_name, iob); in nvme_set_chunk_sectors()
1880 if (blk_queue_is_zoned(ns->disk->queue)) { in nvme_set_chunk_sectors()
1881 if (nvme_first_scan(ns->disk)) in nvme_set_chunk_sectors()
1883 ns->disk->disk_name); in nvme_set_chunk_sectors()
1887 blk_queue_chunk_sectors(ns->queue, iob); in nvme_set_chunk_sectors()
1892 unsigned lbaf = id->flbas & NVME_NS_FLBAS_LBA_MASK; in nvme_update_ns_info()
1895 blk_mq_freeze_queue(ns->disk->queue); in nvme_update_ns_info()
1896 ns->lba_shift = id->lbaf[lbaf].ds; in nvme_update_ns_info()
1897 nvme_set_queue_limits(ns->ctrl, ns->queue); in nvme_update_ns_info()
1903 nvme_update_disk_info(ns->disk, ns, id); in nvme_update_ns_info()
1905 if (ns->head->ids.csi == NVME_CSI_ZNS) { in nvme_update_ns_info()
1911 set_bit(NVME_NS_READY, &ns->flags); in nvme_update_ns_info()
1912 blk_mq_unfreeze_queue(ns->disk->queue); in nvme_update_ns_info()
1914 if (blk_queue_is_zoned(ns->queue)) { in nvme_update_ns_info()
1916 if (ret && !nvme_first_scan(ns->disk)) in nvme_update_ns_info()
1920 if (nvme_ns_head_multipath(ns->head)) { in nvme_update_ns_info()
1921 blk_mq_freeze_queue(ns->head->disk->queue); in nvme_update_ns_info()
1922 nvme_update_disk_info(ns->head->disk, ns, id); in nvme_update_ns_info()
1924 blk_stack_limits(&ns->head->disk->queue->limits, in nvme_update_ns_info()
1925 &ns->queue->limits, 0); in nvme_update_ns_info()
1926 disk_update_readahead(ns->head->disk); in nvme_update_ns_info()
1927 blk_mq_unfreeze_queue(ns->head->disk->queue); in nvme_update_ns_info()
1932 blk_mq_unfreeze_queue(ns->disk->queue); in nvme_update_ns_info()
1938 if (ret == -ENODEV) { in nvme_update_ns_info()
1939 ns->disk->flags |= GENHD_FL_HIDDEN; in nvme_update_ns_info()
1968 struct nvme_ns_head *head = bdev->bd_disk->private_data; in nvme_send_ns_head_pr_command()
1969 int srcu_idx = srcu_read_lock(&head->srcu); in nvme_send_ns_head_pr_command()
1971 int ret = -EWOULDBLOCK; in nvme_send_ns_head_pr_command()
1974 c->common.nsid = cpu_to_le32(ns->head->ns_id); in nvme_send_ns_head_pr_command()
1975 ret = nvme_submit_sync_cmd(ns->queue, c, data, 16); in nvme_send_ns_head_pr_command()
1977 srcu_read_unlock(&head->srcu, srcu_idx); in nvme_send_ns_head_pr_command()
1984 c->common.nsid = cpu_to_le32(ns->head->ns_id); in nvme_send_ns_pr_command()
1985 return nvme_submit_sync_cmd(ns->queue, c, data, 16); in nvme_send_ns_pr_command()
2001 bdev->bd_disk->fops == &nvme_ns_head_ops) in nvme_pr_command()
2003 return nvme_send_ns_pr_command(bdev->bd_disk->private_data, &c, data); in nvme_pr_command()
2012 return -EOPNOTSUPP; in nvme_pr_register()
2026 return -EOPNOTSUPP; in nvme_pr_reserve()
2078 return __nvme_submit_sync_cmd(ctrl->admin_q, &cmd, NULL, buffer, len, 0, in nvme_sec_submit()
2088 return nvme_ns_report_zones(disk->private_data, sector, nr_zones, cb, in nvme_report_zones()
2112 while ((ret = ctrl->ops->reg_read32(ctrl, NVME_REG_CSTS, &csts)) == 0) { in nvme_wait_ready()
2114 return -ENODEV; in nvme_wait_ready()
2120 return -EINTR; in nvme_wait_ready()
2122 dev_err(ctrl->device, in nvme_wait_ready()
2125 return -ENODEV; in nvme_wait_ready()
2142 ctrl->ctrl_config &= ~NVME_CC_SHN_MASK; in nvme_disable_ctrl()
2143 ctrl->ctrl_config &= ~NVME_CC_ENABLE; in nvme_disable_ctrl()
2145 ret = ctrl->ops->reg_write32(ctrl, NVME_REG_CC, ctrl->ctrl_config); in nvme_disable_ctrl()
2149 if (ctrl->quirks & NVME_QUIRK_DELAY_BEFORE_CHK_RDY) in nvme_disable_ctrl()
2152 return nvme_wait_ready(ctrl, ctrl->cap, false); in nvme_disable_ctrl()
2161 ret = ctrl->ops->reg_read64(ctrl, NVME_REG_CAP, &ctrl->cap); in nvme_enable_ctrl()
2163 dev_err(ctrl->device, "Reading CAP failed (%d)\n", ret); in nvme_enable_ctrl()
2166 dev_page_min = NVME_CAP_MPSMIN(ctrl->cap) + 12; in nvme_enable_ctrl()
2169 dev_err(ctrl->device, in nvme_enable_ctrl()
2172 return -ENODEV; in nvme_enable_ctrl()
2175 if (NVME_CAP_CSS(ctrl->cap) & NVME_CAP_CSS_CSI) in nvme_enable_ctrl()
2176 ctrl->ctrl_config = NVME_CC_CSS_CSI; in nvme_enable_ctrl()
2178 ctrl->ctrl_config = NVME_CC_CSS_NVM; in nvme_enable_ctrl()
2179 ctrl->ctrl_config |= (NVME_CTRL_PAGE_SHIFT - 12) << NVME_CC_MPS_SHIFT; in nvme_enable_ctrl()
2180 ctrl->ctrl_config |= NVME_CC_AMS_RR | NVME_CC_SHN_NONE; in nvme_enable_ctrl()
2181 ctrl->ctrl_config |= NVME_CC_IOSQES | NVME_CC_IOCQES; in nvme_enable_ctrl()
2182 ctrl->ctrl_config |= NVME_CC_ENABLE; in nvme_enable_ctrl()
2184 ret = ctrl->ops->reg_write32(ctrl, NVME_REG_CC, ctrl->ctrl_config); in nvme_enable_ctrl()
2187 return nvme_wait_ready(ctrl, ctrl->cap, true); in nvme_enable_ctrl()
2193 unsigned long timeout = jiffies + (ctrl->shutdown_timeout * HZ); in nvme_shutdown_ctrl()
2197 ctrl->ctrl_config &= ~NVME_CC_SHN_MASK; in nvme_shutdown_ctrl()
2198 ctrl->ctrl_config |= NVME_CC_SHN_NORMAL; in nvme_shutdown_ctrl()
2200 ret = ctrl->ops->reg_write32(ctrl, NVME_REG_CC, ctrl->ctrl_config); in nvme_shutdown_ctrl()
2204 while ((ret = ctrl->ops->reg_read32(ctrl, NVME_REG_CSTS, &csts)) == 0) { in nvme_shutdown_ctrl()
2210 return -EINTR; in nvme_shutdown_ctrl()
2212 dev_err(ctrl->device, in nvme_shutdown_ctrl()
2214 return -ENODEV; in nvme_shutdown_ctrl()
2227 if (!(ctrl->oncs & NVME_CTRL_ONCS_TIMESTAMP)) in nvme_configure_timestamp()
2234 dev_warn_once(ctrl->device, in nvme_configure_timestamp()
2245 if (!ctrl->crdt[0]) in nvme_configure_acre()
2252 host->acre = NVME_ENABLE_ACRE; in nvme_configure_acre()
2294 * - If the parameters provide explicit timeouts and tolerances, they will be
2295 * used to build a table with up to 2 non-operational states to transition to.
2299 * and battery power, the timeouts and tolerances reflect a compromise
2300 * between values used by Microsoft for AC and battery scenarios.
2301 * - If not, we'll configure the table with a simple heuristic: we are willing
2304 * lower-power non-operational state after waiting 50 * (enlat + exlat)
2308 * We will not autonomously enter any non-operational state for which the total
2319 int max_ps = -1; in nvme_configure_apst()
2328 if (!ctrl->apsta) in nvme_configure_apst()
2331 if (ctrl->npss > 31) { in nvme_configure_apst()
2332 dev_warn(ctrl->device, "NPSS is invalid; not using APST\n"); in nvme_configure_apst()
2340 if (!ctrl->apst_enabled || ctrl->ps_max_latency_us == 0) { in nvme_configure_apst()
2342 dev_dbg(ctrl->device, "APST disabled\n"); in nvme_configure_apst()
2347 * Walk through all states from lowest- to highest-power. in nvme_configure_apst()
2348 * According to the spec, lower-numbered states use more power. NPSS, in nvme_configure_apst()
2349 * despite the name, is the index of the lowest-power state, not the in nvme_configure_apst()
2352 for (state = (int)ctrl->npss; state >= 0; state--) { in nvme_configure_apst()
2356 table->entries[state] = target; in nvme_configure_apst()
2362 if (state == ctrl->npss && in nvme_configure_apst()
2363 (ctrl->quirks & NVME_QUIRK_NO_DEEPEST_PS)) in nvme_configure_apst()
2367 * Is this state a useful non-operational state for higher-power in nvme_configure_apst()
2370 if (!(ctrl->psd[state].flags & NVME_PS_FLAGS_NON_OP_STATE)) in nvme_configure_apst()
2373 exit_latency_us = (u64)le32_to_cpu(ctrl->psd[state].exit_lat); in nvme_configure_apst()
2374 if (exit_latency_us > ctrl->ps_max_latency_us) in nvme_configure_apst()
2378 le32_to_cpu(ctrl->psd[state].entry_lat); in nvme_configure_apst()
2391 if (transition_ms > (1 << 24) - 1) in nvme_configure_apst()
2392 transition_ms = (1 << 24) - 1; in nvme_configure_apst()
2396 if (max_ps == -1) in nvme_configure_apst()
2402 if (max_ps == -1) in nvme_configure_apst()
2403 dev_dbg(ctrl->device, "APST enabled but no non-operational states are available\n"); in nvme_configure_apst()
2405 …dev_dbg(ctrl->device, "APST enabled: max PS = %d, max round-trip latency = %lluus, table = %*phN\n… in nvme_configure_apst()
2413 dev_err(ctrl->device, "failed to set APST feature (%d)\n", ret); in nvme_configure_apst()
2433 if (ctrl->ps_max_latency_us != latency) { in nvme_set_latency_tolerance()
2434 ctrl->ps_max_latency_us = latency; in nvme_set_latency_tolerance()
2435 if (ctrl->state == NVME_CTRL_LIVE) in nvme_set_latency_tolerance()
2464 * This LiteON CL1-3D*-Q11 firmware version has a race
2474 /* match is null-terminated but idstr is space-padded. */
2498 return q->vid == le16_to_cpu(id->vid) && in quirk_matches()
2499 string_matches(id->mn, q->mn, sizeof(id->mn)) && in quirk_matches()
2500 string_matches(id->fr, q->fr, sizeof(id->fr)); in quirk_matches()
2509 if(!(ctrl->quirks & NVME_QUIRK_IGNORE_DEV_SUBNQN)) { in nvme_init_subnqn()
2510 nqnlen = strnlen(id->subnqn, NVMF_NQN_SIZE); in nvme_init_subnqn()
2512 strlcpy(subsys->subnqn, id->subnqn, NVMF_NQN_SIZE); in nvme_init_subnqn()
2516 if (ctrl->vs >= NVME_VS(1, 2, 1)) in nvme_init_subnqn()
2517 dev_warn(ctrl->device, "missing or invalid SUBNQN field.\n"); in nvme_init_subnqn()
2521 off = snprintf(subsys->subnqn, NVMF_NQN_SIZE, in nvme_init_subnqn()
2523 le16_to_cpu(id->vid), le16_to_cpu(id->ssvid)); in nvme_init_subnqn()
2524 memcpy(subsys->subnqn + off, id->sn, sizeof(id->sn)); in nvme_init_subnqn()
2525 off += sizeof(id->sn); in nvme_init_subnqn()
2526 memcpy(subsys->subnqn + off, id->mn, sizeof(id->mn)); in nvme_init_subnqn()
2527 off += sizeof(id->mn); in nvme_init_subnqn()
2528 memset(subsys->subnqn + off, 0, sizeof(subsys->subnqn) - off); in nvme_init_subnqn()
2536 if (subsys->instance >= 0) in nvme_release_subsystem()
2537 ida_simple_remove(&nvme_instance_ida, subsys->instance); in nvme_release_subsystem()
2547 list_del(&subsys->entry); in nvme_destroy_subsystem()
2550 ida_destroy(&subsys->ns_ida); in nvme_destroy_subsystem()
2551 device_del(&subsys->dev); in nvme_destroy_subsystem()
2552 put_device(&subsys->dev); in nvme_destroy_subsystem()
2557 kref_put(&subsys->ref, nvme_destroy_subsystem); in nvme_put_subsystem()
2578 if (strcmp(subsys->subnqn, subsysnqn)) in __nvme_find_get_subsystem()
2580 if (!kref_get_unless_zero(&subsys->ref)) in __nvme_find_get_subsystem()
2599 return sysfs_emit(buf, "%s\n", subsys->subnqn); in nvme_subsys_show_nqn()
2610 (int)sizeof(subsys->field), subsys->field); \
2640 return ctrl->opts && ctrl->opts->discovery_nqn; in nvme_discovery_ctrl()
2650 list_for_each_entry(tmp, &subsys->ctrls, subsys_entry) { in nvme_validate_cntlid()
2654 if (tmp->cntlid == ctrl->cntlid) { in nvme_validate_cntlid()
2655 dev_err(ctrl->device, in nvme_validate_cntlid()
2657 ctrl->cntlid, dev_name(tmp->device)); in nvme_validate_cntlid()
2661 if ((id->cmic & NVME_CTRL_CMIC_MULTI_CTRL) || in nvme_validate_cntlid()
2665 dev_err(ctrl->device, in nvme_validate_cntlid()
2680 return -ENOMEM; in nvme_init_subsystem()
2682 subsys->instance = -1; in nvme_init_subsystem()
2683 mutex_init(&subsys->lock); in nvme_init_subsystem()
2684 kref_init(&subsys->ref); in nvme_init_subsystem()
2685 INIT_LIST_HEAD(&subsys->ctrls); in nvme_init_subsystem()
2686 INIT_LIST_HEAD(&subsys->nsheads); in nvme_init_subsystem()
2688 memcpy(subsys->serial, id->sn, sizeof(subsys->serial)); in nvme_init_subsystem()
2689 memcpy(subsys->model, id->mn, sizeof(subsys->model)); in nvme_init_subsystem()
2690 memcpy(subsys->firmware_rev, id->fr, sizeof(subsys->firmware_rev)); in nvme_init_subsystem()
2691 subsys->vendor_id = le16_to_cpu(id->vid); in nvme_init_subsystem()
2692 subsys->cmic = id->cmic; in nvme_init_subsystem()
2693 subsys->awupf = le16_to_cpu(id->awupf); in nvme_init_subsystem()
2695 subsys->iopolicy = NVME_IOPOLICY_NUMA; in nvme_init_subsystem()
2698 subsys->dev.class = nvme_subsys_class; in nvme_init_subsystem()
2699 subsys->dev.release = nvme_release_subsystem; in nvme_init_subsystem()
2700 subsys->dev.groups = nvme_subsys_attrs_groups; in nvme_init_subsystem()
2701 dev_set_name(&subsys->dev, "nvme-subsys%d", ctrl->instance); in nvme_init_subsystem()
2702 device_initialize(&subsys->dev); in nvme_init_subsystem()
2705 found = __nvme_find_get_subsystem(subsys->subnqn); in nvme_init_subsystem()
2707 put_device(&subsys->dev); in nvme_init_subsystem()
2711 ret = -EINVAL; in nvme_init_subsystem()
2715 ret = device_add(&subsys->dev); in nvme_init_subsystem()
2717 dev_err(ctrl->device, in nvme_init_subsystem()
2719 put_device(&subsys->dev); in nvme_init_subsystem()
2722 ida_init(&subsys->ns_ida); in nvme_init_subsystem()
2723 list_add_tail(&subsys->entry, &nvme_subsystems); in nvme_init_subsystem()
2726 ret = sysfs_create_link(&subsys->dev.kobj, &ctrl->device->kobj, in nvme_init_subsystem()
2727 dev_name(ctrl->device)); in nvme_init_subsystem()
2729 dev_err(ctrl->device, in nvme_init_subsystem()
2735 subsys->instance = ctrl->instance; in nvme_init_subsystem()
2736 ctrl->subsys = subsys; in nvme_init_subsystem()
2737 list_add_tail(&ctrl->subsys_entry, &subsys->ctrls); in nvme_init_subsystem()
2758 c.get_log_page.numdl = cpu_to_le16(dwlen & ((1 << 16) - 1)); in nvme_get_log()
2764 return nvme_submit_sync_cmd(ctrl->admin_q, &c, log, size); in nvme_get_log()
2770 struct nvme_effects_log *cel = xa_load(&ctrl->cels, csi); in nvme_get_effects_log()
2778 return -ENOMEM; in nvme_get_effects_log()
2787 xa_store(&ctrl->cels, csi, cel, GFP_KERNEL); in nvme_get_effects_log()
2795 u32 page_shift = NVME_CAP_MPSMIN(ctrl->cap) + 12, val; in nvme_mps_to_sectors()
2797 if (check_shl_overflow(1U, units + page_shift - 9, &val)) in nvme_mps_to_sectors()
2808 if (ctrl->oncs & NVME_CTRL_ONCS_DSM) { in nvme_init_non_mdts_limits()
2809 ctrl->max_discard_sectors = UINT_MAX; in nvme_init_non_mdts_limits()
2810 ctrl->max_discard_segments = NVME_DSM_MAX_RANGES; in nvme_init_non_mdts_limits()
2812 ctrl->max_discard_sectors = 0; in nvme_init_non_mdts_limits()
2813 ctrl->max_discard_segments = 0; in nvme_init_non_mdts_limits()
2818 * to the write-zeroes, we are cautious and limit the size to the in nvme_init_non_mdts_limits()
2822 if ((ctrl->oncs & NVME_CTRL_ONCS_WRITE_ZEROES) && in nvme_init_non_mdts_limits()
2823 !(ctrl->quirks & NVME_QUIRK_DISABLE_WRITE_ZEROES)) in nvme_init_non_mdts_limits()
2824 ctrl->max_zeroes_sectors = ctrl->max_hw_sectors; in nvme_init_non_mdts_limits()
2826 ctrl->max_zeroes_sectors = 0; in nvme_init_non_mdts_limits()
2839 ret = nvme_submit_sync_cmd(ctrl->admin_q, &c, id, sizeof(*id)); in nvme_init_non_mdts_limits()
2843 if (id->dmrl) in nvme_init_non_mdts_limits()
2844 ctrl->max_discard_segments = id->dmrl; in nvme_init_non_mdts_limits()
2845 if (id->dmrsl) in nvme_init_non_mdts_limits()
2846 ctrl->max_discard_sectors = le32_to_cpu(id->dmrsl); in nvme_init_non_mdts_limits()
2847 if (id->wzsl) in nvme_init_non_mdts_limits()
2848 ctrl->max_zeroes_sectors = nvme_mps_to_sectors(ctrl, id->wzsl); in nvme_init_non_mdts_limits()
2864 dev_err(ctrl->device, "Identify Controller failed (%d)\n", ret); in nvme_init_identify()
2865 return -EIO; in nvme_init_identify()
2868 if (id->lpa & NVME_CTRL_LPA_CMD_EFFECTS_LOG) { in nvme_init_identify()
2869 ret = nvme_get_effects_log(ctrl, NVME_CSI_NVM, &ctrl->effects); in nvme_init_identify()
2874 if (!(ctrl->ops->flags & NVME_F_FABRICS)) in nvme_init_identify()
2875 ctrl->cntlid = le16_to_cpu(id->cntlid); in nvme_init_identify()
2877 if (!ctrl->identified) { in nvme_init_identify()
2888 * could re-scan for quirks every time we reinitialize in nvme_init_identify()
2894 ctrl->quirks |= core_quirks[i].quirks; in nvme_init_identify()
2898 if (force_apst && (ctrl->quirks & NVME_QUIRK_NO_DEEPEST_PS)) { in nvme_init_identify()
2899 …dev_warn(ctrl->device, "forcibly allowing all power states due to nvme_core.force_apst -- use at y… in nvme_init_identify()
2900 ctrl->quirks &= ~NVME_QUIRK_NO_DEEPEST_PS; in nvme_init_identify()
2903 ctrl->crdt[0] = le16_to_cpu(id->crdt1); in nvme_init_identify()
2904 ctrl->crdt[1] = le16_to_cpu(id->crdt2); in nvme_init_identify()
2905 ctrl->crdt[2] = le16_to_cpu(id->crdt3); in nvme_init_identify()
2907 ctrl->oacs = le16_to_cpu(id->oacs); in nvme_init_identify()
2908 ctrl->oncs = le16_to_cpu(id->oncs); in nvme_init_identify()
2909 ctrl->mtfa = le16_to_cpu(id->mtfa); in nvme_init_identify()
2910 ctrl->oaes = le32_to_cpu(id->oaes); in nvme_init_identify()
2911 ctrl->wctemp = le16_to_cpu(id->wctemp); in nvme_init_identify()
2912 ctrl->cctemp = le16_to_cpu(id->cctemp); in nvme_init_identify()
2914 atomic_set(&ctrl->abort_limit, id->acl + 1); in nvme_init_identify()
2915 ctrl->vwc = id->vwc; in nvme_init_identify()
2916 if (id->mdts) in nvme_init_identify()
2917 max_hw_sectors = nvme_mps_to_sectors(ctrl, id->mdts); in nvme_init_identify()
2920 ctrl->max_hw_sectors = in nvme_init_identify()
2921 min_not_zero(ctrl->max_hw_sectors, max_hw_sectors); in nvme_init_identify()
2923 nvme_set_queue_limits(ctrl, ctrl->admin_q); in nvme_init_identify()
2924 ctrl->sgls = le32_to_cpu(id->sgls); in nvme_init_identify()
2925 ctrl->kas = le16_to_cpu(id->kas); in nvme_init_identify()
2926 ctrl->max_namespaces = le32_to_cpu(id->mnan); in nvme_init_identify()
2927 ctrl->ctratt = le32_to_cpu(id->ctratt); in nvme_init_identify()
2929 if (id->rtd3e) { in nvme_init_identify()
2930 /* us -> s */ in nvme_init_identify()
2931 u32 transition_time = le32_to_cpu(id->rtd3e) / USEC_PER_SEC; in nvme_init_identify()
2933 ctrl->shutdown_timeout = clamp_t(unsigned int, transition_time, in nvme_init_identify()
2936 if (ctrl->shutdown_timeout != shutdown_timeout) in nvme_init_identify()
2937 dev_info(ctrl->device, in nvme_init_identify()
2939 ctrl->shutdown_timeout); in nvme_init_identify()
2941 ctrl->shutdown_timeout = shutdown_timeout; in nvme_init_identify()
2943 ctrl->npss = id->npss; in nvme_init_identify()
2944 ctrl->apsta = id->apsta; in nvme_init_identify()
2945 prev_apst_enabled = ctrl->apst_enabled; in nvme_init_identify()
2946 if (ctrl->quirks & NVME_QUIRK_NO_APST) { in nvme_init_identify()
2947 if (force_apst && id->apsta) { in nvme_init_identify()
2948 …dev_warn(ctrl->device, "forcibly allowing APST due to nvme_core.force_apst -- use at your own risk… in nvme_init_identify()
2949 ctrl->apst_enabled = true; in nvme_init_identify()
2951 ctrl->apst_enabled = false; in nvme_init_identify()
2954 ctrl->apst_enabled = id->apsta; in nvme_init_identify()
2956 memcpy(ctrl->psd, id->psd, sizeof(ctrl->psd)); in nvme_init_identify()
2958 if (ctrl->ops->flags & NVME_F_FABRICS) { in nvme_init_identify()
2959 ctrl->icdoff = le16_to_cpu(id->icdoff); in nvme_init_identify()
2960 ctrl->ioccsz = le32_to_cpu(id->ioccsz); in nvme_init_identify()
2961 ctrl->iorcsz = le32_to_cpu(id->iorcsz); in nvme_init_identify()
2962 ctrl->maxcmd = le16_to_cpu(id->maxcmd); in nvme_init_identify()
2968 if (ctrl->cntlid != le16_to_cpu(id->cntlid)) { in nvme_init_identify()
2969 dev_err(ctrl->device, in nvme_init_identify()
2972 ctrl->cntlid, le16_to_cpu(id->cntlid)); in nvme_init_identify()
2973 ret = -EINVAL; in nvme_init_identify()
2977 if (!nvme_discovery_ctrl(ctrl) && !ctrl->kas) { in nvme_init_identify()
2978 dev_err(ctrl->device, in nvme_init_identify()
2979 "keep-alive support is mandatory for fabrics\n"); in nvme_init_identify()
2980 ret = -EINVAL; in nvme_init_identify()
2984 ctrl->hmpre = le32_to_cpu(id->hmpre); in nvme_init_identify()
2985 ctrl->hmmin = le32_to_cpu(id->hmmin); in nvme_init_identify()
2986 ctrl->hmminds = le32_to_cpu(id->hmminds); in nvme_init_identify()
2987 ctrl->hmmaxd = le16_to_cpu(id->hmmaxd); in nvme_init_identify()
2994 if (ctrl->apst_enabled && !prev_apst_enabled) in nvme_init_identify()
2995 dev_pm_qos_expose_latency_tolerance(ctrl->device); in nvme_init_identify()
2996 else if (!ctrl->apst_enabled && prev_apst_enabled) in nvme_init_identify()
2997 dev_pm_qos_hide_latency_tolerance(ctrl->device); in nvme_init_identify()
3013 ret = ctrl->ops->reg_read32(ctrl, NVME_REG_VS, &ctrl->vs); in nvme_init_ctrl_finish()
3015 dev_err(ctrl->device, "Reading VS failed (%d)\n", ret); in nvme_init_ctrl_finish()
3019 ctrl->sqsize = min_t(u16, NVME_CAP_MQES(ctrl->cap), ctrl->sqsize); in nvme_init_ctrl_finish()
3021 if (ctrl->vs >= NVME_VS(1, 1, 0)) in nvme_init_ctrl_finish()
3022 ctrl->subsystem = NVME_CAP_NSSRC(ctrl->cap); in nvme_init_ctrl_finish()
3048 if (!ctrl->identified && !nvme_discovery_ctrl(ctrl)) { in nvme_init_ctrl_finish()
3054 ctrl->identified = true; in nvme_init_ctrl_finish()
3063 container_of(inode->i_cdev, struct nvme_ctrl, cdev); in nvme_dev_open()
3065 switch (ctrl->state) { in nvme_dev_open()
3069 return -EWOULDBLOCK; in nvme_dev_open()
3073 if (!try_module_get(ctrl->ops->module)) { in nvme_dev_open()
3075 return -EINVAL; in nvme_dev_open()
3078 file->private_data = ctrl; in nvme_dev_open()
3085 container_of(inode->i_cdev, struct nvme_ctrl, cdev); in nvme_dev_release()
3087 module_put(ctrl->ops->module); in nvme_dev_release()
3129 if (disk->fops == &nvme_bdev_ops) in dev_to_ns_head()
3130 return nvme_get_ns_from_dev(dev)->head; in dev_to_ns_head()
3132 return disk->private_data; in dev_to_ns_head()
3139 struct nvme_ns_ids *ids = &head->ids; in wwid_show()
3140 struct nvme_subsystem *subsys = head->subsys; in wwid_show()
3141 int serial_len = sizeof(subsys->serial); in wwid_show()
3142 int model_len = sizeof(subsys->model); in wwid_show()
3144 if (!uuid_is_null(&ids->uuid)) in wwid_show()
3145 return sysfs_emit(buf, "uuid.%pU\n", &ids->uuid); in wwid_show()
3147 if (memchr_inv(ids->nguid, 0, sizeof(ids->nguid))) in wwid_show()
3148 return sysfs_emit(buf, "eui.%16phN\n", ids->nguid); in wwid_show()
3150 if (memchr_inv(ids->eui64, 0, sizeof(ids->eui64))) in wwid_show()
3151 return sysfs_emit(buf, "eui.%8phN\n", ids->eui64); in wwid_show()
3153 while (serial_len > 0 && (subsys->serial[serial_len - 1] == ' ' || in wwid_show()
3154 subsys->serial[serial_len - 1] == '\0')) in wwid_show()
3155 serial_len--; in wwid_show()
3156 while (model_len > 0 && (subsys->model[model_len - 1] == ' ' || in wwid_show()
3157 subsys->model[model_len - 1] == '\0')) in wwid_show()
3158 model_len--; in wwid_show()
3160 return sysfs_emit(buf, "nvme.%04x-%*phN-%*phN-%08x\n", subsys->vendor_id, in wwid_show()
3161 serial_len, subsys->serial, model_len, subsys->model, in wwid_show()
3162 head->ns_id); in wwid_show()
3169 return sysfs_emit(buf, "%pU\n", dev_to_ns_head(dev)->ids.nguid); in nguid_show()
3176 struct nvme_ns_ids *ids = &dev_to_ns_head(dev)->ids; in uuid_show()
3181 if (uuid_is_null(&ids->uuid)) { in uuid_show()
3184 return sysfs_emit(buf, "%pU\n", ids->nguid); in uuid_show()
3186 return sysfs_emit(buf, "%pU\n", &ids->uuid); in uuid_show()
3193 return sysfs_emit(buf, "%8ph\n", dev_to_ns_head(dev)->ids.eui64); in eui_show()
3200 return sysfs_emit(buf, "%d\n", dev_to_ns_head(dev)->ns_id); in nsid_show()
3221 struct nvme_ns_ids *ids = &dev_to_ns_head(dev)->ids; in nvme_ns_id_attrs_are_visible()
3224 if (uuid_is_null(&ids->uuid) && in nvme_ns_id_attrs_are_visible()
3225 !memchr_inv(ids->nguid, 0, sizeof(ids->nguid))) in nvme_ns_id_attrs_are_visible()
3229 if (!memchr_inv(ids->nguid, 0, sizeof(ids->nguid))) in nvme_ns_id_attrs_are_visible()
3233 if (!memchr_inv(ids->eui64, 0, sizeof(ids->eui64))) in nvme_ns_id_attrs_are_visible()
3238 if (dev_to_disk(dev)->fops != &nvme_bdev_ops) /* per-path attr */ in nvme_ns_id_attrs_are_visible()
3240 if (!nvme_ctrl_use_ana(nvme_get_ns_from_dev(dev)->ctrl)) in nvme_ns_id_attrs_are_visible()
3244 return a->mode; in nvme_ns_id_attrs_are_visible()
3263 (int)sizeof(ctrl->subsys->field), ctrl->subsys->field); \
3276 return sysfs_emit(buf, "%d\n", ctrl->field); \
3304 return sysfs_emit(buf, "%s\n", ctrl->ops->name); in nvme_sysfs_show_transport()
3323 if ((unsigned)ctrl->state < ARRAY_SIZE(state_name) && in nvme_sysfs_show_state()
3324 state_name[ctrl->state]) in nvme_sysfs_show_state()
3325 return sysfs_emit(buf, "%s\n", state_name[ctrl->state]); in nvme_sysfs_show_state()
3338 return sysfs_emit(buf, "%s\n", ctrl->subsys->subnqn); in nvme_sysfs_show_subsysnqn()
3348 return sysfs_emit(buf, "%s\n", ctrl->opts->host->nqn); in nvme_sysfs_show_hostnqn()
3358 return sysfs_emit(buf, "%pU\n", &ctrl->opts->host->id); in nvme_sysfs_show_hostid()
3368 return ctrl->ops->get_address(ctrl, buf, PAGE_SIZE); in nvme_sysfs_show_address()
3376 struct nvmf_ctrl_options *opts = ctrl->opts; in nvme_ctrl_loss_tmo_show()
3378 if (ctrl->opts->max_reconnects == -1) in nvme_ctrl_loss_tmo_show()
3381 opts->max_reconnects * opts->reconnect_delay); in nvme_ctrl_loss_tmo_show()
3388 struct nvmf_ctrl_options *opts = ctrl->opts; in nvme_ctrl_loss_tmo_store()
3393 return -EINVAL; in nvme_ctrl_loss_tmo_store()
3396 opts->max_reconnects = -1; in nvme_ctrl_loss_tmo_store()
3398 opts->max_reconnects = DIV_ROUND_UP(ctrl_loss_tmo, in nvme_ctrl_loss_tmo_store()
3399 opts->reconnect_delay); in nvme_ctrl_loss_tmo_store()
3410 if (ctrl->opts->reconnect_delay == -1) in nvme_ctrl_reconnect_delay_show()
3412 return sysfs_emit(buf, "%d\n", ctrl->opts->reconnect_delay); in nvme_ctrl_reconnect_delay_show()
3426 ctrl->opts->reconnect_delay = v; in nvme_ctrl_reconnect_delay_store()
3437 if (ctrl->opts->fast_io_fail_tmo == -1) in nvme_ctrl_fast_io_fail_tmo_show()
3439 return sysfs_emit(buf, "%d\n", ctrl->opts->fast_io_fail_tmo); in nvme_ctrl_fast_io_fail_tmo_show()
3446 struct nvmf_ctrl_options *opts = ctrl->opts; in nvme_ctrl_fast_io_fail_tmo_store()
3451 return -EINVAL; in nvme_ctrl_fast_io_fail_tmo_store()
3454 opts->fast_io_fail_tmo = -1; in nvme_ctrl_fast_io_fail_tmo_store()
3456 opts->fast_io_fail_tmo = fast_io_fail_tmo; in nvme_ctrl_fast_io_fail_tmo_store()
3492 if (a == &dev_attr_delete_controller.attr && !ctrl->ops->delete_ctrl) in nvme_dev_attrs_are_visible()
3494 if (a == &dev_attr_address.attr && !ctrl->ops->get_address) in nvme_dev_attrs_are_visible()
3496 if (a == &dev_attr_hostnqn.attr && !ctrl->opts) in nvme_dev_attrs_are_visible()
3498 if (a == &dev_attr_hostid.attr && !ctrl->opts) in nvme_dev_attrs_are_visible()
3500 if (a == &dev_attr_ctrl_loss_tmo.attr && !ctrl->opts) in nvme_dev_attrs_are_visible()
3502 if (a == &dev_attr_reconnect_delay.attr && !ctrl->opts) in nvme_dev_attrs_are_visible()
3504 if (a == &dev_attr_fast_io_fail_tmo.attr && !ctrl->opts) in nvme_dev_attrs_are_visible()
3507 return a->mode; in nvme_dev_attrs_are_visible()
3525 lockdep_assert_held(&subsys->lock); in nvme_find_ns_head()
3527 list_for_each_entry(h, &subsys->nsheads, entry) { in nvme_find_ns_head()
3528 if (h->ns_id != nsid) in nvme_find_ns_head()
3530 if (!list_empty(&h->list) && nvme_tryget_ns_head(h)) in nvme_find_ns_head()
3542 lockdep_assert_held(&subsys->lock); in __nvme_check_ids()
3544 list_for_each_entry(h, &subsys->nsheads, entry) { in __nvme_check_ids()
3545 if (nvme_ns_ids_valid(&new->ids) && in __nvme_check_ids()
3546 nvme_ns_ids_equal(&new->ids, &h->ids)) in __nvme_check_ids()
3547 return -EINVAL; in __nvme_check_ids()
3555 ida_simple_remove(&nvme_ns_chr_minor_ida, MINOR(dev->devt)); in nvme_cdev_rel()
3572 cdev_device->devt = MKDEV(MAJOR(nvme_ns_chr_devt), minor); in nvme_cdev_add()
3573 cdev_device->class = nvme_ns_chr_class; in nvme_cdev_add()
3574 cdev_device->release = nvme_cdev_rel; in nvme_cdev_add()
3577 cdev->owner = owner; in nvme_cdev_add()
3587 return nvme_ns_open(container_of(inode->i_cdev, struct nvme_ns, cdev)); in nvme_ns_chr_open()
3592 nvme_ns_release(container_of(inode->i_cdev, struct nvme_ns, cdev)); in nvme_ns_chr_release()
3608 ns->cdev_device.parent = ns->ctrl->device; in nvme_add_ns_cdev()
3609 ret = dev_set_name(&ns->cdev_device, "ng%dn%d", in nvme_add_ns_cdev()
3610 ns->ctrl->instance, ns->head->instance); in nvme_add_ns_cdev()
3614 return nvme_cdev_add(&ns->cdev, &ns->cdev_device, &nvme_ns_chr_fops, in nvme_add_ns_cdev()
3615 ns->ctrl->ops->module); in nvme_add_ns_cdev()
3623 int ret = -ENOMEM; in nvme_alloc_ns_head()
3632 ret = ida_simple_get(&ctrl->subsys->ns_ida, 1, 0, GFP_KERNEL); in nvme_alloc_ns_head()
3635 head->instance = ret; in nvme_alloc_ns_head()
3636 INIT_LIST_HEAD(&head->list); in nvme_alloc_ns_head()
3637 ret = init_srcu_struct(&head->srcu); in nvme_alloc_ns_head()
3640 head->subsys = ctrl->subsys; in nvme_alloc_ns_head()
3641 head->ns_id = nsid; in nvme_alloc_ns_head()
3642 head->ids = *ids; in nvme_alloc_ns_head()
3643 kref_init(&head->ref); in nvme_alloc_ns_head()
3645 ret = __nvme_check_ids(ctrl->subsys, head); in nvme_alloc_ns_head()
3647 dev_err(ctrl->device, in nvme_alloc_ns_head()
3652 if (head->ids.csi) { in nvme_alloc_ns_head()
3653 ret = nvme_get_effects_log(ctrl, head->ids.csi, &head->effects); in nvme_alloc_ns_head()
3657 head->effects = ctrl->effects; in nvme_alloc_ns_head()
3663 list_add_tail(&head->entry, &ctrl->subsys->nsheads); in nvme_alloc_ns_head()
3665 kref_get(&ctrl->subsys->ref); in nvme_alloc_ns_head()
3669 cleanup_srcu_struct(&head->srcu); in nvme_alloc_ns_head()
3671 ida_simple_remove(&ctrl->subsys->ns_ida, head->instance); in nvme_alloc_ns_head()
3683 struct nvme_ctrl *ctrl = ns->ctrl; in nvme_init_ns_head()
3687 mutex_lock(&ctrl->subsys->lock); in nvme_init_ns_head()
3688 head = nvme_find_ns_head(ctrl->subsys, nsid); in nvme_init_ns_head()
3695 head->shared = is_shared; in nvme_init_ns_head()
3697 ret = -EINVAL; in nvme_init_ns_head()
3698 if (!is_shared || !head->shared) { in nvme_init_ns_head()
3699 dev_err(ctrl->device, in nvme_init_ns_head()
3703 if (!nvme_ns_ids_equal(&head->ids, ids)) { in nvme_init_ns_head()
3704 dev_err(ctrl->device, in nvme_init_ns_head()
3711 list_add_tail_rcu(&ns->siblings, &head->list); in nvme_init_ns_head()
3712 ns->head = head; in nvme_init_ns_head()
3713 mutex_unlock(&ctrl->subsys->lock); in nvme_init_ns_head()
3719 mutex_unlock(&ctrl->subsys->lock); in nvme_init_ns_head()
3727 down_read(&ctrl->namespaces_rwsem); in nvme_find_get_ns()
3728 list_for_each_entry(ns, &ctrl->namespaces, list) { in nvme_find_get_ns()
3729 if (ns->head->ns_id == nsid) { in nvme_find_get_ns()
3735 if (ns->head->ns_id > nsid) in nvme_find_get_ns()
3738 up_read(&ctrl->namespaces_rwsem); in nvme_find_get_ns()
3750 list_for_each_entry_reverse(tmp, &ns->ctrl->namespaces, list) { in nvme_ns_add_to_ctrl_list()
3751 if (tmp->head->ns_id < ns->head->ns_id) { in nvme_ns_add_to_ctrl_list()
3752 list_add(&ns->list, &tmp->list); in nvme_ns_add_to_ctrl_list()
3756 list_add(&ns->list, &ns->ctrl->namespaces); in nvme_ns_add_to_ctrl_list()
3765 int node = ctrl->numa_node; in nvme_alloc_ns()
3774 disk = blk_mq_alloc_disk(ctrl->tagset, ns); in nvme_alloc_ns()
3777 disk->fops = &nvme_bdev_ops; in nvme_alloc_ns()
3778 disk->private_data = ns; in nvme_alloc_ns()
3780 ns->disk = disk; in nvme_alloc_ns()
3781 ns->queue = disk->queue; in nvme_alloc_ns()
3783 if (ctrl->opts && ctrl->opts->data_digest) in nvme_alloc_ns()
3784 blk_queue_flag_set(QUEUE_FLAG_STABLE_WRITES, ns->queue); in nvme_alloc_ns()
3786 blk_queue_flag_set(QUEUE_FLAG_NONROT, ns->queue); in nvme_alloc_ns()
3787 if (ctrl->ops->flags & NVME_F_PCI_P2PDMA) in nvme_alloc_ns()
3788 blk_queue_flag_set(QUEUE_FLAG_PCI_P2PDMA, ns->queue); in nvme_alloc_ns()
3790 ns->ctrl = ctrl; in nvme_alloc_ns()
3791 kref_init(&ns->kref); in nvme_alloc_ns()
3793 if (nvme_init_ns_head(ns, nsid, ids, id->nmic & NVME_NS_NMIC_SHARED)) in nvme_alloc_ns()
3801 if (!nvme_mpath_set_disk_name(ns, disk->disk_name, &disk->flags)) in nvme_alloc_ns()
3802 sprintf(disk->disk_name, "nvme%dn%d", ctrl->instance, in nvme_alloc_ns()
3803 ns->head->instance); in nvme_alloc_ns()
3808 down_write(&ctrl->namespaces_rwsem); in nvme_alloc_ns()
3810 up_write(&ctrl->namespaces_rwsem); in nvme_alloc_ns()
3813 if (device_add_disk(ctrl->device, ns->disk, nvme_ns_id_attr_groups)) in nvme_alloc_ns()
3816 if (!nvme_ns_head_multipath(ns->head)) in nvme_alloc_ns()
3820 nvme_fault_inject_init(&ns->fault_inject, ns->disk->disk_name); in nvme_alloc_ns()
3827 down_write(&ctrl->namespaces_rwsem); in nvme_alloc_ns()
3828 list_del_init(&ns->list); in nvme_alloc_ns()
3829 up_write(&ctrl->namespaces_rwsem); in nvme_alloc_ns()
3831 mutex_lock(&ctrl->subsys->lock); in nvme_alloc_ns()
3832 list_del_rcu(&ns->siblings); in nvme_alloc_ns()
3833 if (list_empty(&ns->head->list)) in nvme_alloc_ns()
3834 list_del_init(&ns->head->entry); in nvme_alloc_ns()
3835 mutex_unlock(&ctrl->subsys->lock); in nvme_alloc_ns()
3836 nvme_put_ns_head(ns->head); in nvme_alloc_ns()
3849 if (test_and_set_bit(NVME_NS_REMOVING, &ns->flags)) in nvme_ns_remove()
3852 clear_bit(NVME_NS_READY, &ns->flags); in nvme_ns_remove()
3853 set_capacity(ns->disk, 0); in nvme_ns_remove()
3854 nvme_fault_inject_fini(&ns->fault_inject); in nvme_ns_remove()
3856 mutex_lock(&ns->ctrl->subsys->lock); in nvme_ns_remove()
3857 list_del_rcu(&ns->siblings); in nvme_ns_remove()
3858 if (list_empty(&ns->head->list)) { in nvme_ns_remove()
3859 list_del_init(&ns->head->entry); in nvme_ns_remove()
3862 mutex_unlock(&ns->ctrl->subsys->lock); in nvme_ns_remove()
3864 /* guarantee not available in head->list */ in nvme_ns_remove()
3869 synchronize_srcu(&ns->head->srcu); in nvme_ns_remove()
3871 if (!nvme_ns_head_multipath(ns->head)) in nvme_ns_remove()
3872 nvme_cdev_del(&ns->cdev, &ns->cdev_device); in nvme_ns_remove()
3873 del_gendisk(ns->disk); in nvme_ns_remove()
3874 blk_cleanup_queue(ns->queue); in nvme_ns_remove()
3876 down_write(&ns->ctrl->namespaces_rwsem); in nvme_ns_remove()
3877 list_del_init(&ns->list); in nvme_ns_remove()
3878 up_write(&ns->ctrl->namespaces_rwsem); in nvme_ns_remove()
3881 nvme_mpath_shutdown_disk(ns->head); in nvme_ns_remove()
3900 if (test_bit(NVME_NS_DEAD, &ns->flags)) in nvme_validate_ns()
3903 ret = nvme_identify_ns(ns->ctrl, ns->head->ns_id, ids, &id); in nvme_validate_ns()
3908 if (!nvme_ns_ids_equal(&ns->head->ids, ids)) { in nvme_validate_ns()
3909 dev_err(ns->ctrl->device, in nvme_validate_ns()
3910 "identifiers changed for nsid %d\n", ns->head->ns_id); in nvme_validate_ns()
3950 dev_warn(ctrl->device, in nvme_validate_or_alloc_ns()
3956 dev_warn(ctrl->device, in nvme_validate_or_alloc_ns()
3964 dev_warn(ctrl->device, "unknown csi %u for nsid %u\n", in nvme_validate_or_alloc_ns()
3976 down_write(&ctrl->namespaces_rwsem); in nvme_remove_invalid_namespaces()
3977 list_for_each_entry_safe(ns, next, &ctrl->namespaces, list) { in nvme_remove_invalid_namespaces()
3978 if (ns->head->ns_id > nsid || test_bit(NVME_NS_DEAD, &ns->flags)) in nvme_remove_invalid_namespaces()
3979 list_move_tail(&ns->list, &rm_list); in nvme_remove_invalid_namespaces()
3981 up_write(&ctrl->namespaces_rwsem); in nvme_remove_invalid_namespaces()
3996 return -EOPNOTSUPP; in nvme_scan_ns_list()
4000 return -ENOMEM; in nvme_scan_ns_list()
4009 ret = nvme_submit_sync_cmd(ctrl->admin_q, &cmd, ns_list, in nvme_scan_ns_list()
4012 dev_warn(ctrl->device, in nvme_scan_ns_list()
4041 nn = le32_to_cpu(id->nn); in nvme_scan_ns_sequential()
4069 dev_warn(ctrl->device, in nvme_clear_changed_ns_log()
4081 if (ctrl->state != NVME_CTRL_LIVE || !ctrl->tagset) in nvme_scan_work()
4084 if (test_and_clear_bit(NVME_AER_NOTICE_NS_CHANGED, &ctrl->events)) { in nvme_scan_work()
4085 dev_info(ctrl->device, "rescanning namespaces.\n"); in nvme_scan_work()
4089 mutex_lock(&ctrl->scan_lock); in nvme_scan_work()
4092 mutex_unlock(&ctrl->scan_lock); in nvme_scan_work()
4113 flush_work(&ctrl->scan_work); in nvme_remove_namespaces()
4121 if (ctrl->state == NVME_CTRL_DEAD) in nvme_remove_namespaces()
4124 /* this is a no-op when called from the controller reset handler */ in nvme_remove_namespaces()
4127 down_write(&ctrl->namespaces_rwsem); in nvme_remove_namespaces()
4128 list_splice_init(&ctrl->namespaces, &ns_list); in nvme_remove_namespaces()
4129 up_write(&ctrl->namespaces_rwsem); in nvme_remove_namespaces()
4140 struct nvmf_ctrl_options *opts = ctrl->opts; in nvme_class_uevent()
4143 ret = add_uevent_var(env, "NVME_TRTYPE=%s", ctrl->ops->name); in nvme_class_uevent()
4148 ret = add_uevent_var(env, "NVME_TRADDR=%s", opts->traddr); in nvme_class_uevent()
4153 opts->trsvcid ?: "none"); in nvme_class_uevent()
4158 opts->host_traddr ?: "none"); in nvme_class_uevent()
4163 opts->host_iface ?: "none"); in nvme_class_uevent()
4171 u32 aen_result = ctrl->aen_result; in nvme_aen_uevent()
4173 ctrl->aen_result = 0; in nvme_aen_uevent()
4180 kobject_uevent_env(&ctrl->device->kobj, KOBJ_CHANGE, envp); in nvme_aen_uevent()
4190 ctrl->ops->submit_async_event(ctrl); in nvme_async_event_work()
4198 if (ctrl->ops->reg_read32(ctrl, NVME_REG_CSTS, &csts)) in nvme_ctrl_pp_status()
4204 return ((ctrl->ctrl_config & NVME_CC_ENABLE) && (csts & NVME_CSTS_PP)); in nvme_ctrl_pp_status()
4217 dev_warn(ctrl->device, "Get FW SLOT INFO log error\n"); in nvme_get_fw_slot_info()
4227 if (ctrl->mtfa) in nvme_fw_act_work()
4229 msecs_to_jiffies(ctrl->mtfa * 100); in nvme_fw_act_work()
4237 dev_warn(ctrl->device, in nvme_fw_act_work()
4261 set_bit(NVME_AER_NOTICE_NS_CHANGED, &ctrl->events); in nvme_handle_aen_notice()
4271 queue_work(nvme_wq, &ctrl->fw_act_work); in nvme_handle_aen_notice()
4275 if (!ctrl->ana_log_buf) in nvme_handle_aen_notice()
4277 queue_work(nvme_wq, &ctrl->ana_work); in nvme_handle_aen_notice()
4281 ctrl->aen_result = result; in nvme_handle_aen_notice()
4284 dev_warn(ctrl->device, "async event result %08x\n", result); in nvme_handle_aen_notice()
4291 u32 result = le32_to_cpu(res->u32); in nvme_complete_async_event()
4306 ctrl->aen_result = result; in nvme_complete_async_event()
4311 queue_work(nvme_wq, &ctrl->async_event_work); in nvme_complete_async_event()
4320 flush_work(&ctrl->async_event_work); in nvme_stop_ctrl()
4321 cancel_work_sync(&ctrl->fw_act_work); in nvme_stop_ctrl()
4331 if (ctrl->queue_count > 1) { in nvme_start_ctrl()
4341 nvme_fault_inject_fini(&ctrl->fault_inject); in nvme_uninit_ctrl()
4342 dev_pm_qos_hide_latency_tolerance(ctrl->device); in nvme_uninit_ctrl()
4343 cdev_device_del(&ctrl->cdev, ctrl->device); in nvme_uninit_ctrl()
4353 xa_for_each(&ctrl->cels, i, cel) { in nvme_free_cels()
4354 xa_erase(&ctrl->cels, i); in nvme_free_cels()
4358 xa_destroy(&ctrl->cels); in nvme_free_cels()
4365 struct nvme_subsystem *subsys = ctrl->subsys; in nvme_free_ctrl()
4367 if (!subsys || ctrl->instance != subsys->instance) in nvme_free_ctrl()
4368 ida_simple_remove(&nvme_instance_ida, ctrl->instance); in nvme_free_ctrl()
4372 __free_page(ctrl->discard_page); in nvme_free_ctrl()
4376 list_del(&ctrl->subsys_entry); in nvme_free_ctrl()
4377 sysfs_remove_link(&subsys->dev.kobj, dev_name(ctrl->device)); in nvme_free_ctrl()
4381 ctrl->ops->free_ctrl(ctrl); in nvme_free_ctrl()
4397 ctrl->state = NVME_CTRL_NEW; in nvme_init_ctrl()
4398 clear_bit(NVME_CTRL_FAILFAST_EXPIRED, &ctrl->flags); in nvme_init_ctrl()
4399 spin_lock_init(&ctrl->lock); in nvme_init_ctrl()
4400 mutex_init(&ctrl->scan_lock); in nvme_init_ctrl()
4401 INIT_LIST_HEAD(&ctrl->namespaces); in nvme_init_ctrl()
4402 xa_init(&ctrl->cels); in nvme_init_ctrl()
4403 init_rwsem(&ctrl->namespaces_rwsem); in nvme_init_ctrl()
4404 ctrl->dev = dev; in nvme_init_ctrl()
4405 ctrl->ops = ops; in nvme_init_ctrl()
4406 ctrl->quirks = quirks; in nvme_init_ctrl()
4407 ctrl->numa_node = NUMA_NO_NODE; in nvme_init_ctrl()
4408 INIT_WORK(&ctrl->scan_work, nvme_scan_work); in nvme_init_ctrl()
4409 INIT_WORK(&ctrl->async_event_work, nvme_async_event_work); in nvme_init_ctrl()
4410 INIT_WORK(&ctrl->fw_act_work, nvme_fw_act_work); in nvme_init_ctrl()
4411 INIT_WORK(&ctrl->delete_work, nvme_delete_ctrl_work); in nvme_init_ctrl()
4412 init_waitqueue_head(&ctrl->state_wq); in nvme_init_ctrl()
4414 INIT_DELAYED_WORK(&ctrl->ka_work, nvme_keep_alive_work); in nvme_init_ctrl()
4415 INIT_DELAYED_WORK(&ctrl->failfast_work, nvme_failfast_work); in nvme_init_ctrl()
4416 memset(&ctrl->ka_cmd, 0, sizeof(ctrl->ka_cmd)); in nvme_init_ctrl()
4417 ctrl->ka_cmd.common.opcode = nvme_admin_keep_alive; in nvme_init_ctrl()
4421 ctrl->discard_page = alloc_page(GFP_KERNEL); in nvme_init_ctrl()
4422 if (!ctrl->discard_page) { in nvme_init_ctrl()
4423 ret = -ENOMEM; in nvme_init_ctrl()
4430 ctrl->instance = ret; in nvme_init_ctrl()
4432 device_initialize(&ctrl->ctrl_device); in nvme_init_ctrl()
4433 ctrl->device = &ctrl->ctrl_device; in nvme_init_ctrl()
4434 ctrl->device->devt = MKDEV(MAJOR(nvme_ctrl_base_chr_devt), in nvme_init_ctrl()
4435 ctrl->instance); in nvme_init_ctrl()
4436 ctrl->device->class = nvme_class; in nvme_init_ctrl()
4437 ctrl->device->parent = ctrl->dev; in nvme_init_ctrl()
4438 ctrl->device->groups = nvme_dev_attr_groups; in nvme_init_ctrl()
4439 ctrl->device->release = nvme_free_ctrl; in nvme_init_ctrl()
4440 dev_set_drvdata(ctrl->device, ctrl); in nvme_init_ctrl()
4441 ret = dev_set_name(ctrl->device, "nvme%d", ctrl->instance); in nvme_init_ctrl()
4446 cdev_init(&ctrl->cdev, &nvme_dev_fops); in nvme_init_ctrl()
4447 ctrl->cdev.owner = ops->module; in nvme_init_ctrl()
4448 ret = cdev_device_add(&ctrl->cdev, ctrl->device); in nvme_init_ctrl()
4456 ctrl->device->power.set_latency_tolerance = nvme_set_latency_tolerance; in nvme_init_ctrl()
4457 dev_pm_qos_update_user_latency_tolerance(ctrl->device, in nvme_init_ctrl()
4460 nvme_fault_inject_init(&ctrl->fault_inject, dev_name(ctrl->device)); in nvme_init_ctrl()
4466 kfree_const(ctrl->device->kobj.name); in nvme_init_ctrl()
4468 ida_simple_remove(&nvme_instance_ida, ctrl->instance); in nvme_init_ctrl()
4470 if (ctrl->discard_page) in nvme_init_ctrl()
4471 __free_page(ctrl->discard_page); in nvme_init_ctrl()
4487 down_read(&ctrl->namespaces_rwsem); in nvme_kill_queues()
4490 if (ctrl->admin_q && !blk_queue_dying(ctrl->admin_q)) in nvme_kill_queues()
4491 blk_mq_unquiesce_queue(ctrl->admin_q); in nvme_kill_queues()
4493 list_for_each_entry(ns, &ctrl->namespaces, list) in nvme_kill_queues()
4496 up_read(&ctrl->namespaces_rwsem); in nvme_kill_queues()
4504 down_read(&ctrl->namespaces_rwsem); in nvme_unfreeze()
4505 list_for_each_entry(ns, &ctrl->namespaces, list) in nvme_unfreeze()
4506 blk_mq_unfreeze_queue(ns->queue); in nvme_unfreeze()
4507 up_read(&ctrl->namespaces_rwsem); in nvme_unfreeze()
4515 down_read(&ctrl->namespaces_rwsem); in nvme_wait_freeze_timeout()
4516 list_for_each_entry(ns, &ctrl->namespaces, list) { in nvme_wait_freeze_timeout()
4517 timeout = blk_mq_freeze_queue_wait_timeout(ns->queue, timeout); in nvme_wait_freeze_timeout()
4521 up_read(&ctrl->namespaces_rwsem); in nvme_wait_freeze_timeout()
4530 down_read(&ctrl->namespaces_rwsem); in nvme_wait_freeze()
4531 list_for_each_entry(ns, &ctrl->namespaces, list) in nvme_wait_freeze()
4532 blk_mq_freeze_queue_wait(ns->queue); in nvme_wait_freeze()
4533 up_read(&ctrl->namespaces_rwsem); in nvme_wait_freeze()
4541 down_read(&ctrl->namespaces_rwsem); in nvme_start_freeze()
4542 list_for_each_entry(ns, &ctrl->namespaces, list) in nvme_start_freeze()
4543 blk_freeze_queue_start(ns->queue); in nvme_start_freeze()
4544 up_read(&ctrl->namespaces_rwsem); in nvme_start_freeze()
4552 down_read(&ctrl->namespaces_rwsem); in nvme_stop_queues()
4553 list_for_each_entry(ns, &ctrl->namespaces, list) in nvme_stop_queues()
4554 blk_mq_quiesce_queue(ns->queue); in nvme_stop_queues()
4555 up_read(&ctrl->namespaces_rwsem); in nvme_stop_queues()
4563 down_read(&ctrl->namespaces_rwsem); in nvme_start_queues()
4564 list_for_each_entry(ns, &ctrl->namespaces, list) in nvme_start_queues()
4565 blk_mq_unquiesce_queue(ns->queue); in nvme_start_queues()
4566 up_read(&ctrl->namespaces_rwsem); in nvme_start_queues()
4574 down_read(&ctrl->namespaces_rwsem); in nvme_sync_io_queues()
4575 list_for_each_entry(ns, &ctrl->namespaces, list) in nvme_sync_io_queues()
4576 blk_sync_queue(ns->queue); in nvme_sync_io_queues()
4577 up_read(&ctrl->namespaces_rwsem); in nvme_sync_io_queues()
4584 if (ctrl->admin_q) in nvme_sync_queues()
4585 blk_sync_queue(ctrl->admin_q); in nvme_sync_queues()
4591 if (file->f_op != &nvme_dev_fops) in nvme_ctrl_from_file()
4593 return file->private_data; in nvme_ctrl_from_file()
4627 int result = -ENOMEM; in nvme_core_init()
4631 nvme_wq = alloc_workqueue("nvme-wq", in nvme_core_init()
4636 nvme_reset_wq = alloc_workqueue("nvme-reset-wq", in nvme_core_init()
4641 nvme_delete_wq = alloc_workqueue("nvme-delete-wq", in nvme_core_init()
4656 nvme_class->dev_uevent = nvme_class_uevent; in nvme_core_init()
4658 nvme_subsys_class = class_create(THIS_MODULE, "nvme-subsystem"); in nvme_core_init()
4665 "nvme-generic"); in nvme_core_init()
4669 nvme_ns_chr_class = class_create(THIS_MODULE, "nvme-generic"); in nvme_core_init()