LCOV - code coverage report
Current view: top level - lib/nvmf - ctrlr.c (source / functions) Hit Total Coverage
Test: ut_cov_unit.info Lines: 1391 2603 53.4 %
Date: 2024-08-14 06:39:28 Functions: 89 159 56.0 %

          Line data    Source code
       1             : /*   SPDX-License-Identifier: BSD-3-Clause
       2             :  *   Copyright (C) 2017 Intel Corporation. All rights reserved.
       3             :  *   Copyright (c) 2019, 2020 Mellanox Technologies LTD. All rights reserved.
       4             :  *   Copyright (c) 2021, 2023 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
       5             :  *   Copyright (c) 2024 Samsung Electronics Co., Ltd. All rights reserved.
       6             :  */
       7             : 
       8             : #include "spdk/stdinc.h"
       9             : 
      10             : #include "nvmf_internal.h"
      11             : #include "transport.h"
      12             : 
      13             : #include "spdk/bdev.h"
      14             : #include "spdk/bdev_zone.h"
      15             : #include "spdk/bit_array.h"
      16             : #include "spdk/endian.h"
      17             : #include "spdk/thread.h"
      18             : #include "spdk/nvme_spec.h"
      19             : #include "spdk/nvmf_cmd.h"
      20             : #include "spdk/string.h"
      21             : #include "spdk/util.h"
      22             : #include "spdk/version.h"
      23             : #include "spdk/log.h"
      24             : #include "spdk_internal/usdt.h"
      25             : 
      26             : #define MIN_KEEP_ALIVE_TIMEOUT_IN_MS 10000
      27             : #define NVMF_DISC_KATO_IN_MS 120000
      28             : #define KAS_TIME_UNIT_IN_MS 100
      29             : #define KAS_DEFAULT_VALUE (MIN_KEEP_ALIVE_TIMEOUT_IN_MS / KAS_TIME_UNIT_IN_MS)
      30             : 
      31             : #define NVMF_CC_RESET_SHN_TIMEOUT_IN_MS 10000
      32             : 
      33             : #define NVMF_CTRLR_RESET_SHN_TIMEOUT_IN_MS      (NVMF_CC_RESET_SHN_TIMEOUT_IN_MS + 5000)
      34             : 
      35             : #define DUPLICATE_QID_RETRY_US 1000
      36             : 
      37             : /*
      38             :  * Report the SPDK version as the firmware revision.
      39             :  * SPDK_VERSION_STRING won't fit into FR (only 8 bytes), so try to fit the most important parts.
      40             :  */
      41             : #define FW_VERSION SPDK_VERSION_MAJOR_STRING SPDK_VERSION_MINOR_STRING SPDK_VERSION_PATCH_STRING
      42             : 
      43             : #define ANA_TRANSITION_TIME_IN_SEC 10
      44             : 
      45             : #define NVMF_ABORT_COMMAND_LIMIT 3
      46             : 
      47             : /*
      48             :  * Support for custom admin command handlers
      49             :  */
      50             : struct spdk_nvmf_custom_admin_cmd {
      51             :         spdk_nvmf_custom_cmd_hdlr hdlr;
      52             :         uint32_t nsid; /* nsid to forward */
      53             : };
      54             : 
      55             : static struct spdk_nvmf_custom_admin_cmd g_nvmf_custom_admin_cmd_hdlrs[SPDK_NVME_MAX_OPC + 1];
      56             : 
      57             : static void _nvmf_request_complete(void *ctx);
      58             : int nvmf_passthru_admin_cmd_for_ctrlr(struct spdk_nvmf_request *req, struct spdk_nvmf_ctrlr *ctrlr);
      59             : 
      60             : static inline void
      61          13 : nvmf_invalid_connect_response(struct spdk_nvmf_fabric_connect_rsp *rsp,
      62             :                               uint8_t iattr, uint16_t ipo)
      63             : {
      64          13 :         rsp->status.sct = SPDK_NVME_SCT_COMMAND_SPECIFIC;
      65          13 :         rsp->status.sc = SPDK_NVMF_FABRIC_SC_INVALID_PARAM;
      66          13 :         rsp->status_code_specific.invalid.iattr = iattr;
      67          13 :         rsp->status_code_specific.invalid.ipo = ipo;
      68          13 : }
      69             : 
      70             : #define SPDK_NVMF_INVALID_CONNECT_CMD(rsp, field)       \
      71             :         nvmf_invalid_connect_response(rsp, 0, offsetof(struct spdk_nvmf_fabric_connect_cmd, field))
      72             : #define SPDK_NVMF_INVALID_CONNECT_DATA(rsp, field)      \
      73             :         nvmf_invalid_connect_response(rsp, 1, offsetof(struct spdk_nvmf_fabric_connect_data, field))
      74             : 
      75             : 
      76             : static void
      77           4 : nvmf_ctrlr_stop_keep_alive_timer(struct spdk_nvmf_ctrlr *ctrlr)
      78             : {
      79           4 :         if (!ctrlr) {
      80           0 :                 SPDK_ERRLOG("Controller is NULL\n");
      81           0 :                 return;
      82             :         }
      83             : 
      84           4 :         if (ctrlr->keep_alive_poller == NULL) {
      85           0 :                 return;
      86             :         }
      87             : 
      88           4 :         SPDK_DEBUGLOG(nvmf, "Stop keep alive poller\n");
      89           4 :         spdk_poller_unregister(&ctrlr->keep_alive_poller);
      90             : }
      91             : 
      92             : static void
      93           1 : nvmf_ctrlr_stop_association_timer(struct spdk_nvmf_ctrlr *ctrlr)
      94             : {
      95           1 :         if (!ctrlr) {
      96           0 :                 SPDK_ERRLOG("Controller is NULL\n");
      97           0 :                 assert(false);
      98             :                 return;
      99             :         }
     100             : 
     101           1 :         if (ctrlr->association_timer == NULL) {
     102           1 :                 return;
     103             :         }
     104             : 
     105           0 :         SPDK_DEBUGLOG(nvmf, "Stop association timer\n");
     106           0 :         spdk_poller_unregister(&ctrlr->association_timer);
     107             : }
     108             : 
     109             : static void
     110           0 : nvmf_ctrlr_disconnect_qpairs_done(struct spdk_io_channel_iter *i, int status)
     111             : {
     112           0 :         if (status == 0) {
     113           0 :                 SPDK_DEBUGLOG(nvmf, "ctrlr disconnect qpairs complete successfully\n");
     114             :         } else {
     115           0 :                 SPDK_ERRLOG("Fail to disconnect ctrlr qpairs\n");
     116             :         }
     117           0 : }
     118             : 
     119             : static int
     120           0 : _nvmf_ctrlr_disconnect_qpairs_on_pg(struct spdk_io_channel_iter *i, bool include_admin)
     121             : {
     122           0 :         int rc = 0;
     123             :         struct spdk_nvmf_ctrlr *ctrlr;
     124             :         struct spdk_nvmf_qpair *qpair, *temp_qpair;
     125             :         struct spdk_io_channel *ch;
     126             :         struct spdk_nvmf_poll_group *group;
     127             : 
     128           0 :         ctrlr = spdk_io_channel_iter_get_ctx(i);
     129           0 :         ch = spdk_io_channel_iter_get_channel(i);
     130           0 :         group = spdk_io_channel_get_ctx(ch);
     131             : 
     132           0 :         TAILQ_FOREACH_SAFE(qpair, &group->qpairs, link, temp_qpair) {
     133           0 :                 if (qpair->ctrlr == ctrlr && (include_admin || !nvmf_qpair_is_admin_queue(qpair))) {
     134           0 :                         rc = spdk_nvmf_qpair_disconnect(qpair);
     135           0 :                         if (rc) {
     136           0 :                                 if (rc == -EINPROGRESS) {
     137           0 :                                         rc = 0;
     138             :                                 } else {
     139           0 :                                         SPDK_ERRLOG("Qpair disconnect failed\n");
     140           0 :                                         return rc;
     141             :                                 }
     142             :                         }
     143             :                 }
     144             :         }
     145             : 
     146           0 :         return rc;
     147             : }
     148             : 
     149             : static void
     150           0 : nvmf_ctrlr_disconnect_qpairs_on_pg(struct spdk_io_channel_iter *i)
     151             : {
     152           0 :         spdk_for_each_channel_continue(i, _nvmf_ctrlr_disconnect_qpairs_on_pg(i, true));
     153           0 : }
     154             : 
     155             : static void
     156           0 : nvmf_ctrlr_disconnect_io_qpairs_on_pg(struct spdk_io_channel_iter *i)
     157             : {
     158           0 :         spdk_for_each_channel_continue(i, _nvmf_ctrlr_disconnect_qpairs_on_pg(i, false));
     159           0 : }
     160             : 
     161             : static int
     162           0 : nvmf_ctrlr_keep_alive_poll(void *ctx)
     163             : {
     164             :         uint64_t keep_alive_timeout_tick;
     165           0 :         uint64_t now = spdk_get_ticks();
     166           0 :         struct spdk_nvmf_ctrlr *ctrlr = ctx;
     167             : 
     168           0 :         if (ctrlr->in_destruct) {
     169           0 :                 nvmf_ctrlr_stop_keep_alive_timer(ctrlr);
     170           0 :                 return SPDK_POLLER_IDLE;
     171             :         }
     172             : 
     173           0 :         SPDK_DEBUGLOG(nvmf, "Polling ctrlr keep alive timeout\n");
     174             : 
     175             :         /* If the Keep alive feature is in use and the timer expires */
     176           0 :         keep_alive_timeout_tick = ctrlr->last_keep_alive_tick +
     177           0 :                                   ctrlr->feat.keep_alive_timer.bits.kato * spdk_get_ticks_hz() / UINT64_C(1000);
     178           0 :         if (now > keep_alive_timeout_tick) {
     179           0 :                 SPDK_NOTICELOG("Disconnecting host %s from subsystem %s due to keep alive timeout.\n",
     180             :                                ctrlr->hostnqn, ctrlr->subsys->subnqn);
     181             :                 /* set the Controller Fatal Status bit to '1' */
     182           0 :                 if (ctrlr->vcprop.csts.bits.cfs == 0) {
     183           0 :                         nvmf_ctrlr_set_fatal_status(ctrlr);
     184             : 
     185             :                         /*
     186             :                          * disconnect qpairs, terminate Transport connection
     187             :                          * destroy ctrlr, break the host to controller association
     188             :                          * disconnect qpairs with qpair->ctrlr == ctrlr
     189             :                          */
     190           0 :                         spdk_for_each_channel(ctrlr->subsys->tgt,
     191             :                                               nvmf_ctrlr_disconnect_qpairs_on_pg,
     192             :                                               ctrlr,
     193             :                                               nvmf_ctrlr_disconnect_qpairs_done);
     194           0 :                         return SPDK_POLLER_BUSY;
     195             :                 }
     196             :         }
     197             : 
     198           0 :         return SPDK_POLLER_IDLE;
     199             : }
     200             : 
     201             : static void
     202           5 : nvmf_ctrlr_start_keep_alive_timer(struct spdk_nvmf_ctrlr *ctrlr)
     203             : {
     204           5 :         if (!ctrlr) {
     205           0 :                 SPDK_ERRLOG("Controller is NULL\n");
     206           0 :                 return;
     207             :         }
     208             : 
     209             :         /* if cleared to 0 then the Keep Alive Timer is disabled */
     210           5 :         if (ctrlr->feat.keep_alive_timer.bits.kato != 0) {
     211             : 
     212           4 :                 ctrlr->last_keep_alive_tick = spdk_get_ticks();
     213             : 
     214           4 :                 SPDK_DEBUGLOG(nvmf, "Ctrlr add keep alive poller\n");
     215           4 :                 ctrlr->keep_alive_poller = SPDK_POLLER_REGISTER(nvmf_ctrlr_keep_alive_poll, ctrlr,
     216             :                                            ctrlr->feat.keep_alive_timer.bits.kato * 1000);
     217             :         }
     218             : }
     219             : 
     220             : static void
     221          14 : nvmf_qpair_set_ctrlr(struct spdk_nvmf_qpair *qpair, struct spdk_nvmf_ctrlr *ctrlr)
     222             : {
     223          14 :         if (qpair->ctrlr != NULL) {
     224             :                 /* Admin queues will call this function twice. */
     225           6 :                 assert(qpair->ctrlr == ctrlr);
     226           6 :                 return;
     227             :         }
     228             : 
     229           8 :         qpair->ctrlr = ctrlr;
     230           8 :         spdk_trace_owner_append_description(qpair->trace_id,
     231           8 :                                             spdk_nvmf_subsystem_get_nqn(ctrlr->subsys));
     232             : }
     233             : 
     234             : static int _retry_qid_check(void *ctx);
     235             : 
     236             : static void
     237           7 : nvmf_ctrlr_send_connect_rsp(void *ctx)
     238             : {
     239           7 :         struct spdk_nvmf_request *req = ctx;
     240           7 :         struct spdk_nvmf_qpair *qpair = req->qpair;
     241           7 :         struct spdk_nvmf_ctrlr *ctrlr = qpair->ctrlr;
     242           7 :         struct spdk_nvmf_fabric_connect_rsp *rsp = &req->rsp->connect_rsp;
     243             :         int rc;
     244             : 
     245             :         /* The qpair might have been disconnected in the meantime */
     246           7 :         assert(qpair->state == SPDK_NVMF_QPAIR_CONNECTING ||
     247             :                qpair->state == SPDK_NVMF_QPAIR_DEACTIVATING);
     248           7 :         if (qpair->state == SPDK_NVMF_QPAIR_CONNECTING) {
     249           7 :                 if (nvmf_subsystem_host_auth_required(ctrlr->subsys, ctrlr->hostnqn)) {
     250           0 :                         rc = nvmf_qpair_auth_init(qpair);
     251           0 :                         if (rc != 0) {
     252           0 :                                 rsp->status.sct = SPDK_NVME_SCT_GENERIC;
     253           0 :                                 rsp->status.sc = SPDK_NVME_SC_INTERNAL_DEVICE_ERROR;
     254           0 :                                 spdk_nvmf_request_complete(req);
     255           0 :                                 spdk_nvmf_qpair_disconnect(qpair);
     256           0 :                                 return;
     257             :                         }
     258           0 :                         rsp->status_code_specific.success.authreq.atr = 1;
     259           0 :                         nvmf_qpair_set_state(qpair, SPDK_NVMF_QPAIR_AUTHENTICATING);
     260             :                 } else {
     261           7 :                         nvmf_qpair_set_state(qpair, SPDK_NVMF_QPAIR_ENABLED);
     262             :                 }
     263             :         }
     264             : 
     265           7 :         SPDK_DEBUGLOG(nvmf, "connect capsule response: cntlid = 0x%04x\n", ctrlr->cntlid);
     266             : 
     267           7 :         assert(spdk_get_thread() == qpair->group->thread);
     268           7 :         rsp->status.sc = SPDK_NVME_SC_SUCCESS;
     269           7 :         rsp->status_code_specific.success.cntlid = ctrlr->cntlid;
     270           7 :         spdk_nvmf_request_complete(req);
     271             : }
     272             : 
     273             : static void
     274          10 : nvmf_ctrlr_add_qpair(struct spdk_nvmf_qpair *qpair,
     275             :                      struct spdk_nvmf_ctrlr *ctrlr,
     276             :                      struct spdk_nvmf_request *req)
     277             : {
     278          10 :         struct spdk_nvmf_fabric_connect_rsp *rsp = &req->rsp->connect_rsp;
     279             : 
     280          10 :         if (!ctrlr->admin_qpair) {
     281           0 :                 SPDK_ERRLOG("Inactive admin qpair\n");
     282           0 :                 rsp->status.sct = SPDK_NVME_SCT_COMMAND_SPECIFIC;
     283           0 :                 rsp->status.sc = SPDK_NVMF_FABRIC_SC_INVALID_PARAM;
     284           0 :                 qpair->connect_req = NULL;
     285           0 :                 qpair->ctrlr = NULL;
     286           0 :                 spdk_nvmf_request_complete(req);
     287           0 :                 return;
     288             :         }
     289             : 
     290          10 :         assert(ctrlr->admin_qpair->group->thread == spdk_get_thread());
     291             : 
     292          10 :         if (spdk_bit_array_get(ctrlr->qpair_mask, qpair->qid)) {
     293           3 :                 if (qpair->connect_req != NULL) {
     294           1 :                         SPDK_ERRLOG("Got I/O connect with duplicate QID %u (cntlid:%u)\n",
     295             :                                     qpair->qid, ctrlr->cntlid);
     296           1 :                         rsp->status.sct = SPDK_NVME_SCT_COMMAND_SPECIFIC;
     297           1 :                         rsp->status.sc = SPDK_NVME_SC_INVALID_QUEUE_IDENTIFIER;
     298           1 :                         qpair->connect_req = NULL;
     299           1 :                         qpair->ctrlr = NULL;
     300           1 :                         spdk_nvmf_request_complete(req);
     301             :                 } else {
     302           2 :                         SPDK_WARNLOG("Duplicate QID detected (cntlid:%u, qid:%u), re-check in %dus\n",
     303             :                                      ctrlr->cntlid, qpair->qid, DUPLICATE_QID_RETRY_US);
     304           2 :                         qpair->connect_req = req;
     305             :                         /* Set qpair->ctrlr here so that we'll have it when the poller expires. */
     306           2 :                         nvmf_qpair_set_ctrlr(qpair, ctrlr);
     307           2 :                         req->poller = SPDK_POLLER_REGISTER(_retry_qid_check, qpair,
     308             :                                                            DUPLICATE_QID_RETRY_US);
     309             :                 }
     310           3 :                 return;
     311             :         }
     312             : 
     313             :         SPDK_DTRACE_PROBE4_TICKS(nvmf_ctrlr_add_qpair, qpair, qpair->qid, ctrlr->subsys->subnqn,
     314             :                                  ctrlr->hostnqn);
     315           7 :         nvmf_qpair_set_ctrlr(qpair, ctrlr);
     316           7 :         spdk_bit_array_set(ctrlr->qpair_mask, qpair->qid);
     317           7 :         SPDK_DEBUGLOG(nvmf, "qpair_mask set, qid %u\n", qpair->qid);
     318             : 
     319           7 :         spdk_thread_send_msg(qpair->group->thread, nvmf_ctrlr_send_connect_rsp, req);
     320             : }
     321             : 
     322             : static int
     323           2 : _retry_qid_check(void *ctx)
     324             : {
     325           2 :         struct spdk_nvmf_qpair *qpair = ctx;
     326           2 :         struct spdk_nvmf_request *req = qpair->connect_req;
     327           2 :         struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
     328             : 
     329           2 :         spdk_poller_unregister(&req->poller);
     330           2 :         SPDK_WARNLOG("Retrying adding qpair, qid:%d\n", qpair->qid);
     331           2 :         nvmf_ctrlr_add_qpair(qpair, ctrlr, req);
     332           2 :         return SPDK_POLLER_BUSY;
     333             : }
     334             : 
     335             : static void
     336           5 : _nvmf_ctrlr_add_admin_qpair(void *ctx)
     337             : {
     338           5 :         struct spdk_nvmf_request *req = ctx;
     339           5 :         struct spdk_nvmf_qpair *qpair = req->qpair;
     340           5 :         struct spdk_nvmf_ctrlr *ctrlr = qpair->ctrlr;
     341             : 
     342           5 :         ctrlr->admin_qpair = qpair;
     343           5 :         ctrlr->association_timeout = qpair->transport->opts.association_timeout;
     344           5 :         nvmf_ctrlr_start_keep_alive_timer(ctrlr);
     345           5 :         nvmf_ctrlr_add_qpair(qpair, ctrlr, req);
     346           5 : }
     347             : 
     348             : static void
     349           5 : _nvmf_subsystem_add_ctrlr(void *ctx)
     350             : {
     351           5 :         struct spdk_nvmf_request *req = ctx;
     352           5 :         struct spdk_nvmf_qpair *qpair = req->qpair;
     353           5 :         struct spdk_nvmf_fabric_connect_rsp *rsp = &req->rsp->connect_rsp;
     354           5 :         struct spdk_nvmf_ctrlr *ctrlr = qpair->ctrlr;
     355             : 
     356           5 :         if (nvmf_subsystem_add_ctrlr(ctrlr->subsys, ctrlr)) {
     357           0 :                 SPDK_ERRLOG("Unable to add controller to subsystem\n");
     358           0 :                 spdk_bit_array_free(&ctrlr->qpair_mask);
     359           0 :                 free(ctrlr);
     360           0 :                 qpair->ctrlr = NULL;
     361           0 :                 rsp->status.sc = SPDK_NVME_SC_INTERNAL_DEVICE_ERROR;
     362           0 :                 spdk_nvmf_request_complete(req);
     363           0 :                 return;
     364             :         }
     365             : 
     366           5 :         spdk_thread_send_msg(ctrlr->thread, _nvmf_ctrlr_add_admin_qpair, req);
     367             : }
     368             : 
     369             : static void
     370           6 : nvmf_ctrlr_cdata_init(struct spdk_nvmf_transport *transport, struct spdk_nvmf_subsystem *subsystem,
     371             :                       struct spdk_nvmf_ctrlr_data *cdata)
     372             : {
     373           6 :         cdata->aerl = SPDK_NVMF_MAX_ASYNC_EVENTS - 1;
     374           6 :         cdata->kas = KAS_DEFAULT_VALUE;
     375           6 :         cdata->vid = SPDK_PCI_VID_INTEL;
     376           6 :         cdata->ssvid = SPDK_PCI_VID_INTEL;
     377             :         /* INTEL OUI */
     378           6 :         cdata->ieee[0] = 0xe4;
     379           6 :         cdata->ieee[1] = 0xd2;
     380           6 :         cdata->ieee[2] = 0x5c;
     381           6 :         cdata->oncs.compare = 1;
     382           6 :         cdata->oncs.dsm = 1;
     383           6 :         cdata->oncs.write_zeroes = 1;
     384           6 :         cdata->oncs.reservations = 1;
     385           6 :         cdata->oncs.copy = 1;
     386           6 :         cdata->fuses.compare_and_write = 1;
     387           6 :         cdata->sgls.supported = 1;
     388           6 :         cdata->sgls.keyed_sgl = 1;
     389           6 :         cdata->sgls.sgl_offset = 1;
     390           6 :         cdata->nvmf_specific.ioccsz = sizeof(struct spdk_nvme_cmd) / 16;
     391           6 :         cdata->nvmf_specific.ioccsz += transport->opts.in_capsule_data_size / 16;
     392           6 :         cdata->nvmf_specific.iorcsz = sizeof(struct spdk_nvme_cpl) / 16;
     393           6 :         cdata->nvmf_specific.icdoff = 0; /* offset starts directly after SQE */
     394           6 :         cdata->nvmf_specific.ctrattr.ctrlr_model = SPDK_NVMF_CTRLR_MODEL_DYNAMIC;
     395           6 :         cdata->nvmf_specific.msdbd = 1;
     396             : 
     397           6 :         if (transport->ops->cdata_init) {
     398           0 :                 transport->ops->cdata_init(transport, subsystem, cdata);
     399             :         }
     400           6 : }
     401             : 
     402             : static bool
     403           5 : nvmf_subsystem_has_zns_iocs(struct spdk_nvmf_subsystem *subsystem)
     404             : {
     405             :         struct spdk_nvmf_ns *ns;
     406             :         uint32_t i;
     407             : 
     408           9 :         for (i = 0; i < subsystem->max_nsid; i++) {
     409           4 :                 ns = subsystem->ns[i];
     410           4 :                 if (ns && ns->bdev && spdk_bdev_is_zoned(ns->bdev)) {
     411           0 :                         return true;
     412             :                 }
     413             :         }
     414           5 :         return false;
     415             : }
     416             : 
     417             : static void
     418           9 : nvmf_ctrlr_init_visible_ns(struct spdk_nvmf_ctrlr *ctrlr)
     419             : {
     420           9 :         struct spdk_nvmf_subsystem *subsystem = ctrlr->subsys;
     421             :         struct spdk_nvmf_ns *ns;
     422             : 
     423          17 :         for (ns = spdk_nvmf_subsystem_get_first_ns(subsystem); ns != NULL;
     424           8 :              ns = spdk_nvmf_subsystem_get_next_ns(subsystem, ns)) {
     425           8 :                 if (ns->always_visible || nvmf_ns_find_host(ns, ctrlr->hostnqn) != NULL) {
     426           3 :                         spdk_bit_array_set(ctrlr->visible_ns, ns->nsid - 1);
     427             :                 }
     428             :         }
     429           9 : }
     430             : 
     431             : static struct spdk_nvmf_ctrlr *
     432           5 : nvmf_ctrlr_create(struct spdk_nvmf_subsystem *subsystem,
     433             :                   struct spdk_nvmf_request *req,
     434             :                   struct spdk_nvmf_fabric_connect_cmd *connect_cmd,
     435             :                   struct spdk_nvmf_fabric_connect_data *connect_data)
     436             : {
     437             :         struct spdk_nvmf_ctrlr *ctrlr;
     438           5 :         struct spdk_nvmf_transport *transport = req->qpair->transport;
     439           5 :         struct spdk_nvme_transport_id listen_trid = {};
     440           5 :         bool subsys_has_multi_iocs = false;
     441             : 
     442           5 :         ctrlr = calloc(1, sizeof(*ctrlr));
     443           5 :         if (ctrlr == NULL) {
     444           0 :                 SPDK_ERRLOG("Memory allocation failed\n");
     445           0 :                 return NULL;
     446             :         }
     447             : 
     448           5 :         if (spdk_nvme_trtype_is_fabrics(transport->ops->type)) {
     449           5 :                 ctrlr->dynamic_ctrlr = true;
     450             :         } else {
     451           0 :                 ctrlr->cntlid = connect_data->cntlid;
     452             :         }
     453             : 
     454             :         SPDK_DTRACE_PROBE3_TICKS(nvmf_ctrlr_create, ctrlr, subsystem->subnqn,
     455             :                                  spdk_thread_get_id(req->qpair->group->thread));
     456             : 
     457           5 :         STAILQ_INIT(&ctrlr->async_events);
     458           5 :         TAILQ_INIT(&ctrlr->log_head);
     459           5 :         ctrlr->subsys = subsystem;
     460           5 :         ctrlr->thread = req->qpair->group->thread;
     461           5 :         ctrlr->disconnect_in_progress = false;
     462             : 
     463           5 :         ctrlr->qpair_mask = spdk_bit_array_create(transport->opts.max_qpairs_per_ctrlr);
     464           5 :         if (!ctrlr->qpair_mask) {
     465           0 :                 SPDK_ERRLOG("Failed to allocate controller qpair mask\n");
     466           0 :                 goto err_qpair_mask;
     467             :         }
     468             : 
     469           5 :         nvmf_ctrlr_cdata_init(transport, subsystem, &ctrlr->cdata);
     470             : 
     471             :         /*
     472             :          * KAS: This field indicates the granularity of the Keep Alive Timer in 100ms units.
     473             :          * If this field is cleared to 0h, then Keep Alive is not supported.
     474             :          */
     475           5 :         if (ctrlr->cdata.kas) {
     476           5 :                 ctrlr->feat.keep_alive_timer.bits.kato = spdk_divide_round_up(connect_cmd->kato,
     477             :                                 KAS_DEFAULT_VALUE * KAS_TIME_UNIT_IN_MS) *
     478             :                                 KAS_DEFAULT_VALUE * KAS_TIME_UNIT_IN_MS;
     479             :         }
     480             : 
     481           5 :         ctrlr->feat.async_event_configuration.bits.ns_attr_notice = 1;
     482           5 :         if (ctrlr->subsys->flags.ana_reporting) {
     483           0 :                 ctrlr->feat.async_event_configuration.bits.ana_change_notice = 1;
     484             :         }
     485           5 :         ctrlr->feat.volatile_write_cache.bits.wce = 1;
     486             :         /* Coalescing Disable */
     487           5 :         ctrlr->feat.interrupt_vector_configuration.bits.cd = 1;
     488             : 
     489           5 :         if (spdk_nvmf_subsystem_is_discovery(ctrlr->subsys)) {
     490             :                 /*
     491             :                  * If keep-alive timeout is not set, discovery controllers use some
     492             :                  * arbitrary high value in order to cleanup stale discovery sessions
     493             :                  *
     494             :                  * From the 1.0a nvme-of spec:
     495             :                  * "The Keep Alive command is reserved for
     496             :                  * Discovery controllers. A transport may specify a
     497             :                  * fixed Discovery controller activity timeout value
     498             :                  * (e.g., 2 minutes). If no commands are received
     499             :                  * by a Discovery controller within that time
     500             :                  * period, the controller may perform the
     501             :                  * actions for Keep Alive Timer expiration".
     502             :                  *
     503             :                  * From the 1.1 nvme-of spec:
     504             :                  * "A host requests an explicit persistent connection
     505             :                  * to a Discovery controller and Asynchronous Event Notifications from
     506             :                  * the Discovery controller on that persistent connection by specifying
     507             :                  * a non-zero Keep Alive Timer value in the Connect command."
     508             :                  *
     509             :                  * In case non-zero KATO is used, we enable discovery_log_change_notice
     510             :                  * otherwise we disable it and use default discovery controller KATO.
     511             :                  * KATO is in millisecond.
     512             :                  */
     513           2 :                 if (ctrlr->feat.keep_alive_timer.bits.kato == 0) {
     514           1 :                         ctrlr->feat.keep_alive_timer.bits.kato = NVMF_DISC_KATO_IN_MS;
     515           1 :                         ctrlr->feat.async_event_configuration.bits.discovery_log_change_notice = 0;
     516             :                 } else {
     517           1 :                         ctrlr->feat.async_event_configuration.bits.discovery_log_change_notice = 1;
     518             :                 }
     519             :         }
     520             : 
     521             :         /* Subtract 1 for admin queue, 1 for 0's based */
     522           5 :         ctrlr->feat.number_of_queues.bits.ncqr = transport->opts.max_qpairs_per_ctrlr - 1 -
     523             :                         1;
     524           5 :         ctrlr->feat.number_of_queues.bits.nsqr = transport->opts.max_qpairs_per_ctrlr - 1 -
     525             :                         1;
     526             : 
     527           5 :         spdk_uuid_copy(&ctrlr->hostid, (struct spdk_uuid *)connect_data->hostid);
     528           5 :         memcpy(ctrlr->hostnqn, connect_data->hostnqn, SPDK_NVMF_NQN_MAX_LEN);
     529             : 
     530           5 :         ctrlr->visible_ns = spdk_bit_array_create(subsystem->max_nsid);
     531           5 :         if (!ctrlr->visible_ns) {
     532           0 :                 SPDK_ERRLOG("Failed to allocate visible namespace array\n");
     533           0 :                 goto err_visible_ns;
     534             :         }
     535           5 :         nvmf_ctrlr_init_visible_ns(ctrlr);
     536             : 
     537           5 :         ctrlr->vcprop.cap.raw = 0;
     538           5 :         ctrlr->vcprop.cap.bits.cqr = 1; /* NVMe-oF specification required */
     539           5 :         ctrlr->vcprop.cap.bits.mqes = transport->opts.max_queue_depth -
     540             :                                       1; /* max queue depth */
     541           5 :         ctrlr->vcprop.cap.bits.ams = 0; /* optional arb mechanisms */
     542             :         /* ready timeout - 500 msec units */
     543           5 :         ctrlr->vcprop.cap.bits.to = NVMF_CTRLR_RESET_SHN_TIMEOUT_IN_MS / 500;
     544           5 :         ctrlr->vcprop.cap.bits.dstrd = 0; /* fixed to 0 for NVMe-oF */
     545           5 :         subsys_has_multi_iocs = nvmf_subsystem_has_zns_iocs(subsystem);
     546           5 :         if (subsys_has_multi_iocs) {
     547           0 :                 ctrlr->vcprop.cap.bits.css =
     548             :                         SPDK_NVME_CAP_CSS_IOCS; /* One or more I/O command sets supported */
     549             :         } else {
     550           5 :                 ctrlr->vcprop.cap.bits.css = SPDK_NVME_CAP_CSS_NVM; /* NVM command set */
     551             :         }
     552             : 
     553           5 :         ctrlr->vcprop.cap.bits.mpsmin = 0; /* 2 ^ (12 + mpsmin) == 4k */
     554           5 :         ctrlr->vcprop.cap.bits.mpsmax = 0; /* 2 ^ (12 + mpsmax) == 4k */
     555             : 
     556             :         /* Version Supported: 1.3 */
     557           5 :         ctrlr->vcprop.vs.bits.mjr = 1;
     558           5 :         ctrlr->vcprop.vs.bits.mnr = 3;
     559           5 :         ctrlr->vcprop.vs.bits.ter = 0;
     560             : 
     561           5 :         ctrlr->vcprop.cc.raw = 0;
     562           5 :         ctrlr->vcprop.cc.bits.en = 0; /* Init controller disabled */
     563           5 :         if (subsys_has_multi_iocs) {
     564           0 :                 ctrlr->vcprop.cc.bits.css =
     565             :                         SPDK_NVME_CC_CSS_IOCS; /* All supported I/O Command Sets */
     566             :         }
     567             : 
     568           5 :         ctrlr->vcprop.csts.raw = 0;
     569           5 :         ctrlr->vcprop.csts.bits.rdy = 0; /* Init controller as not ready */
     570             : 
     571           5 :         SPDK_DEBUGLOG(nvmf, "cap 0x%" PRIx64 "\n", ctrlr->vcprop.cap.raw);
     572           5 :         SPDK_DEBUGLOG(nvmf, "vs 0x%x\n", ctrlr->vcprop.vs.raw);
     573           5 :         SPDK_DEBUGLOG(nvmf, "cc 0x%x\n", ctrlr->vcprop.cc.raw);
     574           5 :         SPDK_DEBUGLOG(nvmf, "csts 0x%x\n", ctrlr->vcprop.csts.raw);
     575             : 
     576           5 :         ctrlr->dif_insert_or_strip = transport->opts.dif_insert_or_strip;
     577             : 
     578           5 :         if (ctrlr->subsys->subtype == SPDK_NVMF_SUBTYPE_NVME) {
     579           3 :                 if (spdk_nvmf_qpair_get_listen_trid(req->qpair, &listen_trid) != 0) {
     580           0 :                         SPDK_ERRLOG("Could not get listener transport ID\n");
     581           0 :                         goto err_listener;
     582             :                 }
     583             : 
     584           3 :                 ctrlr->listener = nvmf_subsystem_find_listener(ctrlr->subsys, &listen_trid);
     585           3 :                 if (!ctrlr->listener) {
     586           0 :                         SPDK_ERRLOG("Listener was not found\n");
     587           0 :                         goto err_listener;
     588             :                 }
     589             :         }
     590             : 
     591           5 :         nvmf_qpair_set_ctrlr(req->qpair, ctrlr);
     592           5 :         spdk_thread_send_msg(subsystem->thread, _nvmf_subsystem_add_ctrlr, req);
     593             : 
     594           5 :         return ctrlr;
     595           0 : err_listener:
     596           0 :         spdk_bit_array_free(&ctrlr->visible_ns);
     597           0 : err_visible_ns:
     598           0 :         spdk_bit_array_free(&ctrlr->qpair_mask);
     599           0 : err_qpair_mask:
     600           0 :         free(ctrlr);
     601           0 :         return NULL;
     602             : }
     603             : 
     604             : static void
     605           1 : _nvmf_ctrlr_destruct(void *ctx)
     606             : {
     607           1 :         struct spdk_nvmf_ctrlr *ctrlr = ctx;
     608             :         struct spdk_nvmf_reservation_log *log, *log_tmp;
     609             :         struct spdk_nvmf_async_event_completion *event, *event_tmp;
     610             : 
     611             :         SPDK_DTRACE_PROBE3_TICKS(nvmf_ctrlr_destruct, ctrlr, ctrlr->subsys->subnqn,
     612             :                                  spdk_thread_get_id(ctrlr->thread));
     613             : 
     614           1 :         assert(spdk_get_thread() == ctrlr->thread);
     615           1 :         assert(ctrlr->in_destruct);
     616             : 
     617           1 :         SPDK_DEBUGLOG(nvmf, "Destroy ctrlr 0x%hx\n", ctrlr->cntlid);
     618           1 :         if (ctrlr->disconnect_in_progress) {
     619           0 :                 SPDK_ERRLOG("freeing ctrlr with disconnect in progress\n");
     620           0 :                 spdk_thread_send_msg(ctrlr->thread, _nvmf_ctrlr_destruct, ctrlr);
     621           0 :                 return;
     622             :         }
     623             : 
     624           1 :         nvmf_ctrlr_stop_keep_alive_timer(ctrlr);
     625           1 :         nvmf_ctrlr_stop_association_timer(ctrlr);
     626           1 :         spdk_bit_array_free(&ctrlr->qpair_mask);
     627             : 
     628           1 :         TAILQ_FOREACH_SAFE(log, &ctrlr->log_head, link, log_tmp) {
     629           0 :                 TAILQ_REMOVE(&ctrlr->log_head, log, link);
     630           0 :                 free(log);
     631             :         }
     632           1 :         STAILQ_FOREACH_SAFE(event, &ctrlr->async_events, link, event_tmp) {
     633           0 :                 STAILQ_REMOVE(&ctrlr->async_events, event, spdk_nvmf_async_event_completion, link);
     634           0 :                 free(event);
     635             :         }
     636           1 :         spdk_bit_array_free(&ctrlr->visible_ns);
     637           1 :         free(ctrlr);
     638             : }
     639             : 
     640             : void
     641           1 : nvmf_ctrlr_destruct(struct spdk_nvmf_ctrlr *ctrlr)
     642             : {
     643           1 :         nvmf_subsystem_remove_ctrlr(ctrlr->subsys, ctrlr);
     644             : 
     645           1 :         spdk_thread_send_msg(ctrlr->thread, _nvmf_ctrlr_destruct, ctrlr);
     646           1 : }
     647             : 
     648             : static void
     649           8 : nvmf_ctrlr_add_io_qpair(void *ctx)
     650             : {
     651           8 :         struct spdk_nvmf_request *req = ctx;
     652           8 :         struct spdk_nvmf_fabric_connect_rsp *rsp = &req->rsp->connect_rsp;
     653           8 :         struct spdk_nvmf_qpair *qpair = req->qpair;
     654           8 :         struct spdk_nvmf_ctrlr *ctrlr = qpair->ctrlr;
     655           8 :         struct spdk_nvmf_qpair *admin_qpair = ctrlr->admin_qpair;
     656           8 :         struct spdk_nvmf_poll_group *admin_qpair_group = NULL;
     657           8 :         enum spdk_nvmf_qpair_state admin_qpair_state = SPDK_NVMF_QPAIR_UNINITIALIZED;
     658           8 :         bool admin_qpair_active = false;
     659             : 
     660             :         SPDK_DTRACE_PROBE4_TICKS(nvmf_ctrlr_add_io_qpair, ctrlr, req->qpair, req->qpair->qid,
     661             :                                  spdk_thread_get_id(ctrlr->thread));
     662             : 
     663             :         /* Unit test will check qpair->ctrlr after calling spdk_nvmf_ctrlr_connect.
     664             :           * For error case, the value should be NULL. So set it to NULL at first.
     665             :           */
     666           8 :         qpair->ctrlr = NULL;
     667             : 
     668             :         /* Make sure the controller is not being destroyed. */
     669           8 :         if (ctrlr->in_destruct) {
     670           0 :                 SPDK_ERRLOG("Got I/O connect while ctrlr was being destroyed.\n");
     671           0 :                 SPDK_NVMF_INVALID_CONNECT_CMD(rsp, qid);
     672           0 :                 goto end;
     673             :         }
     674             : 
     675           8 :         if (spdk_nvmf_subsystem_is_discovery(ctrlr->subsys)) {
     676           1 :                 SPDK_ERRLOG("I/O connect not allowed on discovery controller\n");
     677           1 :                 SPDK_NVMF_INVALID_CONNECT_CMD(rsp, qid);
     678           1 :                 goto end;
     679             :         }
     680             : 
     681           7 :         if (!ctrlr->vcprop.cc.bits.en) {
     682           1 :                 SPDK_ERRLOG("Got I/O connect before ctrlr was enabled\n");
     683           1 :                 SPDK_NVMF_INVALID_CONNECT_CMD(rsp, qid);
     684           1 :                 goto end;
     685             :         }
     686             : 
     687           6 :         if (1u << ctrlr->vcprop.cc.bits.iosqes != sizeof(struct spdk_nvme_cmd)) {
     688           1 :                 SPDK_ERRLOG("Got I/O connect with invalid IOSQES %u\n",
     689             :                             ctrlr->vcprop.cc.bits.iosqes);
     690           1 :                 SPDK_NVMF_INVALID_CONNECT_CMD(rsp, qid);
     691           1 :                 goto end;
     692             :         }
     693             : 
     694           5 :         if (1u << ctrlr->vcprop.cc.bits.iocqes != sizeof(struct spdk_nvme_cpl)) {
     695           1 :                 SPDK_ERRLOG("Got I/O connect with invalid IOCQES %u\n",
     696             :                             ctrlr->vcprop.cc.bits.iocqes);
     697           1 :                 SPDK_NVMF_INVALID_CONNECT_CMD(rsp, qid);
     698           1 :                 goto end;
     699             :         }
     700             : 
     701             :         /* There is a chance that admin qpair was destroyed. This is an issue that was observed only with ESX initiators */
     702           4 :         if (admin_qpair) {
     703           4 :                 admin_qpair_active = spdk_nvmf_qpair_is_active(admin_qpair);
     704           4 :                 admin_qpair_group = admin_qpair->group;
     705           4 :                 admin_qpair_state = admin_qpair->state;
     706             :         }
     707             : 
     708           4 :         if (!admin_qpair_active || admin_qpair_group == NULL) {
     709             :                 /* There is a chance that admin qpair was destroyed or is being destroyed at this moment due to e.g.
     710             :                  * expired keep alive timer. Part of the qpair destruction process is change of qpair's
     711             :                  * state to DEACTIVATING and removing it from poll group */
     712           0 :                 SPDK_ERRLOG("Inactive admin qpair (state %d, group %p)\n", admin_qpair_state, admin_qpair_group);
     713           0 :                 SPDK_NVMF_INVALID_CONNECT_CMD(rsp, qid);
     714           0 :                 goto end;
     715             :         }
     716             : 
     717             :         /* check if we would exceed ctrlr connection limit */
     718           4 :         if (qpair->qid >= spdk_bit_array_capacity(ctrlr->qpair_mask)) {
     719           1 :                 SPDK_ERRLOG("Requested QID %u but Max QID is %u\n",
     720             :                             qpair->qid, spdk_bit_array_capacity(ctrlr->qpair_mask) - 1);
     721           1 :                 rsp->status.sct = SPDK_NVME_SCT_COMMAND_SPECIFIC;
     722           1 :                 rsp->status.sc = SPDK_NVME_SC_INVALID_QUEUE_IDENTIFIER;
     723           1 :                 goto end;
     724             :         }
     725             : 
     726           3 :         nvmf_ctrlr_add_qpair(qpair, ctrlr, req);
     727           3 :         return;
     728           5 : end:
     729           5 :         spdk_nvmf_request_complete(req);
     730             : }
     731             : 
     732             : static void
     733          11 : _nvmf_ctrlr_add_io_qpair(void *ctx)
     734             : {
     735          11 :         struct spdk_nvmf_request *req = ctx;
     736          11 :         struct spdk_nvmf_fabric_connect_rsp *rsp = &req->rsp->connect_rsp;
     737             :         struct spdk_nvmf_fabric_connect_data *data;
     738             :         struct spdk_nvmf_ctrlr *ctrlr;
     739          11 :         struct spdk_nvmf_qpair *qpair = req->qpair;
     740             :         struct spdk_nvmf_qpair *admin_qpair;
     741          11 :         struct spdk_nvmf_tgt *tgt = qpair->transport->tgt;
     742             :         struct spdk_nvmf_subsystem *subsystem;
     743          11 :         struct spdk_nvme_transport_id listen_trid = {};
     744             :         const struct spdk_nvmf_subsystem_listener *listener;
     745          11 :         struct spdk_nvmf_poll_group *admin_qpair_group = NULL;
     746          11 :         enum spdk_nvmf_qpair_state admin_qpair_state = SPDK_NVMF_QPAIR_UNINITIALIZED;
     747          11 :         bool admin_qpair_active = false;
     748             : 
     749          11 :         assert(req->iovcnt == 1);
     750             : 
     751          11 :         data = req->iov[0].iov_base;
     752             : 
     753          11 :         SPDK_DEBUGLOG(nvmf, "Connect I/O Queue for controller id 0x%x\n", data->cntlid);
     754             : 
     755          11 :         subsystem = spdk_nvmf_tgt_find_subsystem(tgt, data->subnqn);
     756             :         /* We already checked this in spdk_nvmf_ctrlr_connect */
     757          11 :         assert(subsystem != NULL);
     758             : 
     759          11 :         ctrlr = nvmf_subsystem_get_ctrlr(subsystem, data->cntlid);
     760          11 :         if (ctrlr == NULL) {
     761           1 :                 SPDK_ERRLOG("Unknown controller ID 0x%x\n", data->cntlid);
     762           1 :                 SPDK_NVMF_INVALID_CONNECT_DATA(rsp, cntlid);
     763           1 :                 spdk_nvmf_request_complete(req);
     764           1 :                 return;
     765             :         }
     766             : 
     767             :         /* fail before passing a message to the controller thread. */
     768          10 :         if (ctrlr->in_destruct) {
     769           0 :                 SPDK_ERRLOG("Got I/O connect while ctrlr was being destroyed.\n");
     770           0 :                 SPDK_NVMF_INVALID_CONNECT_CMD(rsp, qid);
     771           0 :                 spdk_nvmf_request_complete(req);
     772           0 :                 return;
     773             :         }
     774             : 
     775             :         /* If ANA reporting is enabled, check if I/O connect is on the same listener. */
     776          10 :         if (subsystem->flags.ana_reporting) {
     777           0 :                 if (spdk_nvmf_qpair_get_listen_trid(req->qpair, &listen_trid) != 0) {
     778           0 :                         SPDK_ERRLOG("Could not get listener transport ID\n");
     779           0 :                         SPDK_NVMF_INVALID_CONNECT_CMD(rsp, qid);
     780           0 :                         spdk_nvmf_request_complete(req);
     781           0 :                         return;
     782             :                 }
     783             : 
     784           0 :                 listener = nvmf_subsystem_find_listener(subsystem, &listen_trid);
     785           0 :                 if (listener != ctrlr->listener) {
     786           0 :                         SPDK_ERRLOG("I/O connect is on a listener different from admin connect\n");
     787           0 :                         SPDK_NVMF_INVALID_CONNECT_CMD(rsp, qid);
     788           0 :                         spdk_nvmf_request_complete(req);
     789           0 :                         return;
     790             :                 }
     791             :         }
     792             : 
     793          10 :         admin_qpair = ctrlr->admin_qpair;
     794             : 
     795             :         /* There is a chance that admin qpair was destroyed. This is an issue that was observed only with ESX initiators */
     796          10 :         if (admin_qpair) {
     797           9 :                 admin_qpair_active = spdk_nvmf_qpair_is_active(admin_qpair);
     798           9 :                 admin_qpair_group = admin_qpair->group;
     799           9 :                 admin_qpair_state = admin_qpair->state;
     800             :         }
     801             : 
     802          10 :         if (!admin_qpair_active || admin_qpair_group == NULL) {
     803             :                 /* There is a chance that admin qpair was destroyed or is being destroyed at this moment due to e.g.
     804             :                  * expired keep alive timer. Part of the qpair destruction process is change of qpair's
     805             :                  * state to DEACTIVATING and removing it from poll group */
     806           2 :                 SPDK_ERRLOG("Inactive admin qpair (state %d, group %p)\n", admin_qpair_state, admin_qpair_group);
     807           2 :                 SPDK_NVMF_INVALID_CONNECT_CMD(rsp, qid);
     808           2 :                 spdk_nvmf_request_complete(req);
     809           2 :                 return;
     810             :         }
     811           8 :         qpair->ctrlr = ctrlr;
     812           8 :         spdk_thread_send_msg(admin_qpair_group->thread, nvmf_ctrlr_add_io_qpair, req);
     813             : }
     814             : 
     815             : static bool
     816          21 : nvmf_qpair_access_allowed(struct spdk_nvmf_qpair *qpair, struct spdk_nvmf_subsystem *subsystem,
     817             :                           const char *hostnqn)
     818             : {
     819          21 :         struct spdk_nvme_transport_id listen_trid = {};
     820             : 
     821          21 :         if (!spdk_nvmf_subsystem_host_allowed(subsystem, hostnqn)) {
     822           1 :                 SPDK_ERRLOG("Subsystem '%s' does not allow host '%s'\n", subsystem->subnqn, hostnqn);
     823           1 :                 return false;
     824             :         }
     825             : 
     826          20 :         if (spdk_nvmf_qpair_get_listen_trid(qpair, &listen_trid)) {
     827           0 :                 SPDK_ERRLOG("Subsystem '%s' is unable to enforce access control due to an internal error.\n",
     828             :                             subsystem->subnqn);
     829           0 :                 return false;
     830             :         }
     831             : 
     832          20 :         if (!spdk_nvmf_subsystem_listener_allowed(subsystem, &listen_trid)) {
     833           0 :                 SPDK_ERRLOG("Subsystem '%s' does not allow host '%s' to connect at this address.\n",
     834             :                             subsystem->subnqn, hostnqn);
     835           0 :                 return false;
     836             :         }
     837             : 
     838          20 :         return true;
     839             : }
     840             : 
     841             : static int
     842          20 : _nvmf_ctrlr_connect(struct spdk_nvmf_request *req)
     843             : {
     844          20 :         struct spdk_nvmf_fabric_connect_data *data = req->iov[0].iov_base;
     845          20 :         struct spdk_nvmf_fabric_connect_cmd *cmd = &req->cmd->connect_cmd;
     846          20 :         struct spdk_nvmf_fabric_connect_rsp *rsp = &req->rsp->connect_rsp;
     847          20 :         struct spdk_nvmf_qpair *qpair = req->qpair;
     848          20 :         struct spdk_nvmf_transport *transport = qpair->transport;
     849             :         struct spdk_nvmf_ctrlr *ctrlr;
     850             :         struct spdk_nvmf_subsystem *subsystem;
     851             : 
     852          20 :         SPDK_DEBUGLOG(nvmf, "recfmt 0x%x qid %u sqsize %u\n",
     853             :                       cmd->recfmt, cmd->qid, cmd->sqsize);
     854             : 
     855          20 :         SPDK_DEBUGLOG(nvmf, "Connect data:\n");
     856          20 :         SPDK_DEBUGLOG(nvmf, "  cntlid:  0x%04x\n", data->cntlid);
     857          20 :         SPDK_DEBUGLOG(nvmf, "  hostid: %08x-%04x-%04x-%02x%02x-%04x%08x ***\n",
     858             :                       ntohl(*(uint32_t *)&data->hostid[0]),
     859             :                       ntohs(*(uint16_t *)&data->hostid[4]),
     860             :                       ntohs(*(uint16_t *)&data->hostid[6]),
     861             :                       data->hostid[8],
     862             :                       data->hostid[9],
     863             :                       ntohs(*(uint16_t *)&data->hostid[10]),
     864             :                       ntohl(*(uint32_t *)&data->hostid[12]));
     865          20 :         SPDK_DEBUGLOG(nvmf, "  subnqn: \"%s\"\n", data->subnqn);
     866          20 :         SPDK_DEBUGLOG(nvmf, "  hostnqn: \"%s\"\n", data->hostnqn);
     867             : 
     868          20 :         subsystem = spdk_nvmf_tgt_find_subsystem(transport->tgt, data->subnqn);
     869          20 :         if (!subsystem) {
     870           0 :                 SPDK_NVMF_INVALID_CONNECT_DATA(rsp, subnqn);
     871           0 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
     872             :         }
     873             : 
     874          20 :         if (cmd->recfmt != 0) {
     875           1 :                 SPDK_ERRLOG("Connect command unsupported RECFMT %u\n", cmd->recfmt);
     876           1 :                 rsp->status.sct = SPDK_NVME_SCT_COMMAND_SPECIFIC;
     877           1 :                 rsp->status.sc = SPDK_NVMF_FABRIC_SC_INCOMPATIBLE_FORMAT;
     878           1 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
     879             :         }
     880             : 
     881             :         /*
     882             :          * SQSIZE is a 0-based value, so it must be at least 1 (minimum queue depth is 2) and
     883             :          * strictly less than max_aq_depth (admin queues) or max_queue_depth (io queues).
     884             :          */
     885          19 :         if (cmd->sqsize == 0) {
     886           1 :                 SPDK_ERRLOG("Invalid SQSIZE = 0\n");
     887           1 :                 SPDK_NVMF_INVALID_CONNECT_CMD(rsp, sqsize);
     888           1 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
     889             :         }
     890             : 
     891          18 :         if (cmd->qid == 0) {
     892           6 :                 if (cmd->sqsize >= transport->opts.max_aq_depth) {
     893           1 :                         SPDK_ERRLOG("Invalid SQSIZE for admin queue %u (min 1, max %u)\n",
     894             :                                     cmd->sqsize, transport->opts.max_aq_depth - 1);
     895           1 :                         SPDK_NVMF_INVALID_CONNECT_CMD(rsp, sqsize);
     896           1 :                         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
     897             :                 }
     898          12 :         } else if (cmd->sqsize >= transport->opts.max_queue_depth) {
     899           1 :                 SPDK_ERRLOG("Invalid SQSIZE %u (min 1, max %u)\n",
     900             :                             cmd->sqsize, transport->opts.max_queue_depth - 1);
     901           1 :                 SPDK_NVMF_INVALID_CONNECT_CMD(rsp, sqsize);
     902           1 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
     903             :         }
     904             : 
     905          16 :         qpair->sq_head_max = cmd->sqsize;
     906          16 :         qpair->qid = cmd->qid;
     907          16 :         qpair->connect_received = true;
     908             : 
     909          16 :         pthread_mutex_lock(&qpair->group->mutex);
     910          16 :         qpair->group->current_unassociated_qpairs--;
     911          16 :         pthread_mutex_unlock(&qpair->group->mutex);
     912             : 
     913          16 :         if (0 == qpair->qid) {
     914           5 :                 qpair->group->stat.admin_qpairs++;
     915           5 :                 qpair->group->stat.current_admin_qpairs++;
     916             :         } else {
     917          11 :                 qpair->group->stat.io_qpairs++;
     918          11 :                 qpair->group->stat.current_io_qpairs++;
     919             :         }
     920             : 
     921          16 :         if (cmd->qid == 0) {
     922           5 :                 SPDK_DEBUGLOG(nvmf, "Connect Admin Queue for controller ID 0x%x\n", data->cntlid);
     923             : 
     924           5 :                 if (spdk_nvme_trtype_is_fabrics(transport->ops->type) && data->cntlid != 0xFFFF) {
     925             :                         /* This NVMf target only supports dynamic mode. */
     926           1 :                         SPDK_ERRLOG("The NVMf target only supports dynamic mode (CNTLID = 0x%x).\n", data->cntlid);
     927           1 :                         SPDK_NVMF_INVALID_CONNECT_DATA(rsp, cntlid);
     928           1 :                         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
     929             :                 }
     930             : 
     931             :                 /* Establish a new ctrlr */
     932           4 :                 ctrlr = nvmf_ctrlr_create(subsystem, req, cmd, data);
     933           4 :                 if (!ctrlr) {
     934           0 :                         SPDK_ERRLOG("nvmf_ctrlr_create() failed\n");
     935           0 :                         rsp->status.sc = SPDK_NVME_SC_INTERNAL_DEVICE_ERROR;
     936           0 :                         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
     937             :                 } else {
     938           4 :                         return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
     939             :                 }
     940             :         } else {
     941          11 :                 spdk_thread_send_msg(subsystem->thread, _nvmf_ctrlr_add_io_qpair, req);
     942          11 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
     943             :         }
     944             : }
     945             : 
     946             : static struct spdk_nvmf_subsystem_poll_group *
     947           9 : nvmf_subsystem_pg_from_connect_cmd(struct spdk_nvmf_request *req)
     948             : {
     949             :         struct spdk_nvmf_fabric_connect_data *data;
     950             :         struct spdk_nvmf_subsystem *subsystem;
     951             :         struct spdk_nvmf_tgt *tgt;
     952             : 
     953           9 :         assert(nvmf_request_is_fabric_connect(req));
     954           9 :         assert(req->qpair->ctrlr == NULL);
     955           9 :         assert(req->iovcnt == 1);
     956             : 
     957           9 :         data = req->iov[0].iov_base;
     958           9 :         tgt = req->qpair->transport->tgt;
     959             : 
     960           9 :         subsystem = spdk_nvmf_tgt_find_subsystem(tgt, data->subnqn);
     961           9 :         if (subsystem == NULL) {
     962           0 :                 return NULL;
     963             :         }
     964             : 
     965           9 :         return &req->qpair->group->sgroups[subsystem->id];
     966             : }
     967             : 
     968             : int
     969           0 : spdk_nvmf_ctrlr_connect(struct spdk_nvmf_request *req)
     970             : {
     971           0 :         struct spdk_nvmf_fabric_connect_rsp *rsp = &req->rsp->connect_rsp;
     972             :         struct spdk_nvmf_subsystem_poll_group *sgroup;
     973           0 :         struct spdk_nvmf_qpair *qpair = req->qpair;
     974             :         enum spdk_nvmf_request_exec_status status;
     975             : 
     976           0 :         if (req->iovcnt > 1) {
     977           0 :                 SPDK_ERRLOG("Connect command invalid iovcnt: %d\n", req->iovcnt);
     978           0 :                 rsp->status.sc = SPDK_NVME_SC_INVALID_FIELD;
     979           0 :                 status = SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
     980           0 :                 goto out;
     981             :         }
     982             : 
     983           0 :         sgroup = nvmf_subsystem_pg_from_connect_cmd(req);
     984           0 :         if (!sgroup) {
     985           0 :                 SPDK_NVMF_INVALID_CONNECT_DATA(rsp, subnqn);
     986           0 :                 status = SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
     987           0 :                 goto out;
     988             :         }
     989             : 
     990           0 :         sgroup->mgmt_io_outstanding++;
     991           0 :         TAILQ_INSERT_TAIL(&qpair->outstanding, req, link);
     992             : 
     993           0 :         status = _nvmf_ctrlr_connect(req);
     994             : 
     995           0 : out:
     996           0 :         if (status == SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE) {
     997           0 :                 _nvmf_request_complete(req);
     998             :         }
     999             : 
    1000           0 :         return status;
    1001             : }
    1002             : 
    1003             : static int
    1004          24 : nvmf_ctrlr_cmd_connect(struct spdk_nvmf_request *req)
    1005             : {
    1006          24 :         struct spdk_nvmf_fabric_connect_data *data = req->iov[0].iov_base;
    1007          24 :         struct spdk_nvmf_fabric_connect_rsp *rsp = &req->rsp->connect_rsp;
    1008          24 :         struct spdk_nvmf_transport *transport = req->qpair->transport;
    1009             :         struct spdk_nvmf_subsystem *subsystem;
    1010             : 
    1011          24 :         if (req->length < sizeof(struct spdk_nvmf_fabric_connect_data)) {
    1012           1 :                 SPDK_ERRLOG("Connect command data length 0x%x too small\n", req->length);
    1013           1 :                 rsp->status.sc = SPDK_NVME_SC_INVALID_FIELD;
    1014           1 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1015             :         }
    1016             : 
    1017          23 :         if (req->iovcnt > 1) {
    1018           0 :                 SPDK_ERRLOG("Connect command invalid iovcnt: %d\n", req->iovcnt);
    1019           0 :                 rsp->status.sc = SPDK_NVME_SC_INVALID_FIELD;
    1020           0 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1021             :         }
    1022             : 
    1023          23 :         subsystem = spdk_nvmf_tgt_find_subsystem(transport->tgt, data->subnqn);
    1024          23 :         if (!subsystem) {
    1025           1 :                 SPDK_NVMF_INVALID_CONNECT_DATA(rsp, subnqn);
    1026           1 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1027             :         }
    1028             : 
    1029          22 :         if ((subsystem->state == SPDK_NVMF_SUBSYSTEM_INACTIVE) ||
    1030          22 :             (subsystem->state == SPDK_NVMF_SUBSYSTEM_PAUSING) ||
    1031          22 :             (subsystem->state == SPDK_NVMF_SUBSYSTEM_PAUSED) ||
    1032          22 :             (subsystem->state == SPDK_NVMF_SUBSYSTEM_DEACTIVATING)) {
    1033             :                 struct spdk_nvmf_subsystem_poll_group *sgroup;
    1034             : 
    1035             :                 /* Subsystem is not ready to handle a connect. Decrement
    1036             :                  * the mgmt_io_outstanding to avoid the subsystem waiting
    1037             :                  * for this command to complete before unpausing. Queued
    1038             :                  * requests get retried when subsystem resumes.
    1039             :                  */
    1040           0 :                 sgroup = nvmf_subsystem_pg_from_connect_cmd(req);
    1041           0 :                 assert(sgroup != NULL);
    1042           0 :                 sgroup->mgmt_io_outstanding--;
    1043           0 :                 TAILQ_REMOVE(&req->qpair->outstanding, req, link);
    1044           0 :                 TAILQ_INSERT_TAIL(&sgroup->queued, req, link);
    1045           0 :                 SPDK_DEBUGLOG(nvmf, "Subsystem '%s' is not ready for connect, retrying...\n", subsystem->subnqn);
    1046           0 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
    1047             :         }
    1048             : 
    1049             :         /* Ensure that hostnqn is null terminated */
    1050          22 :         if (!memchr(data->hostnqn, '\0', SPDK_NVMF_NQN_MAX_LEN + 1)) {
    1051           1 :                 SPDK_ERRLOG("Connect HOSTNQN is not null terminated\n");
    1052           1 :                 SPDK_NVMF_INVALID_CONNECT_DATA(rsp, hostnqn);
    1053           1 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1054             :         }
    1055             : 
    1056          21 :         if (!nvmf_qpair_access_allowed(req->qpair, subsystem, data->hostnqn)) {
    1057           1 :                 rsp->status.sct = SPDK_NVME_SCT_COMMAND_SPECIFIC;
    1058           1 :                 rsp->status.sc = SPDK_NVMF_FABRIC_SC_INVALID_HOST;
    1059           1 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1060             :         }
    1061             : 
    1062          20 :         return _nvmf_ctrlr_connect(req);
    1063             : }
    1064             : 
    1065             : static int
    1066           0 : nvmf_ctrlr_association_remove(void *ctx)
    1067             : {
    1068           0 :         struct spdk_nvmf_ctrlr *ctrlr = ctx;
    1069             :         int rc;
    1070             : 
    1071           0 :         nvmf_ctrlr_stop_association_timer(ctrlr);
    1072             : 
    1073           0 :         if (ctrlr->in_destruct) {
    1074           0 :                 return SPDK_POLLER_IDLE;
    1075             :         }
    1076           0 :         SPDK_DEBUGLOG(nvmf, "Disconnecting host from subsystem %s due to association timeout.\n",
    1077             :                       ctrlr->subsys->subnqn);
    1078             : 
    1079           0 :         if (ctrlr->admin_qpair) {
    1080           0 :                 rc = spdk_nvmf_qpair_disconnect(ctrlr->admin_qpair);
    1081           0 :                 if (rc < 0 && rc != -EINPROGRESS) {
    1082           0 :                         SPDK_ERRLOG("Fail to disconnect admin ctrlr qpair\n");
    1083           0 :                         assert(false);
    1084             :                 }
    1085             :         }
    1086             : 
    1087           0 :         return SPDK_POLLER_BUSY;
    1088             : }
    1089             : 
    1090             : static int
    1091           0 : _nvmf_ctrlr_cc_reset_shn_done(void *ctx)
    1092             : {
    1093           0 :         struct spdk_nvmf_ctrlr *ctrlr = ctx;
    1094           0 :         uint64_t now = spdk_get_ticks();
    1095             :         uint32_t count;
    1096             : 
    1097           0 :         if (ctrlr->cc_timer) {
    1098           0 :                 spdk_poller_unregister(&ctrlr->cc_timer);
    1099             :         }
    1100             : 
    1101           0 :         count = spdk_bit_array_count_set(ctrlr->qpair_mask);
    1102           0 :         SPDK_DEBUGLOG(nvmf, "ctrlr %p active queue count %u\n", ctrlr, count);
    1103             : 
    1104           0 :         if (count > 1) {
    1105           0 :                 if (now < ctrlr->cc_timeout_tsc) {
    1106             :                         /* restart cc timer */
    1107           0 :                         ctrlr->cc_timer = SPDK_POLLER_REGISTER(_nvmf_ctrlr_cc_reset_shn_done, ctrlr, 100 * 1000);
    1108           0 :                         return SPDK_POLLER_IDLE;
    1109             :                 } else {
    1110             :                         /* controller fatal status */
    1111           0 :                         SPDK_WARNLOG("IO timeout, ctrlr %p is in fatal status\n", ctrlr);
    1112           0 :                         nvmf_ctrlr_set_fatal_status(ctrlr);
    1113             :                 }
    1114             :         }
    1115             : 
    1116           0 :         spdk_poller_unregister(&ctrlr->cc_timeout_timer);
    1117             : 
    1118           0 :         if (ctrlr->disconnect_is_shn) {
    1119           0 :                 ctrlr->vcprop.csts.bits.shst = SPDK_NVME_SHST_COMPLETE;
    1120           0 :                 ctrlr->disconnect_is_shn = false;
    1121             :         } else {
    1122             :                 /* Only a subset of the registers are cleared out on a reset */
    1123           0 :                 ctrlr->vcprop.cc.raw = 0;
    1124           0 :                 ctrlr->vcprop.csts.raw = 0;
    1125             :         }
    1126             : 
    1127             :         /* After CC.EN transitions to 0 (due to shutdown or reset), the association
    1128             :          * between the host and controller shall be preserved for at least 2 minutes */
    1129           0 :         if (ctrlr->association_timer) {
    1130           0 :                 SPDK_DEBUGLOG(nvmf, "Association timer already set\n");
    1131           0 :                 nvmf_ctrlr_stop_association_timer(ctrlr);
    1132             :         }
    1133           0 :         if (ctrlr->association_timeout) {
    1134           0 :                 ctrlr->association_timer = SPDK_POLLER_REGISTER(nvmf_ctrlr_association_remove, ctrlr,
    1135             :                                            ctrlr->association_timeout * 1000);
    1136             :         }
    1137           0 :         ctrlr->disconnect_in_progress = false;
    1138           0 :         return SPDK_POLLER_BUSY;
    1139             : }
    1140             : 
    1141             : static void
    1142           0 : nvmf_ctrlr_cc_reset_shn_done(struct spdk_io_channel_iter *i, int status)
    1143             : {
    1144           0 :         struct spdk_nvmf_ctrlr *ctrlr = spdk_io_channel_iter_get_ctx(i);
    1145             : 
    1146           0 :         if (status < 0) {
    1147           0 :                 SPDK_ERRLOG("Fail to disconnect io ctrlr qpairs\n");
    1148           0 :                 assert(false);
    1149             :         }
    1150             : 
    1151           0 :         _nvmf_ctrlr_cc_reset_shn_done((void *)ctrlr);
    1152           0 : }
    1153             : 
    1154             : static void
    1155           0 : nvmf_bdev_complete_reset(struct spdk_bdev_io *bdev_io, bool success, void *cb_arg)
    1156             : {
    1157           0 :         SPDK_NOTICELOG("Resetting bdev done with %s\n", success ? "success" : "failure");
    1158             : 
    1159           0 :         spdk_bdev_free_io(bdev_io);
    1160           0 : }
    1161             : 
    1162             : 
    1163             : static int
    1164           0 : nvmf_ctrlr_cc_timeout(void *ctx)
    1165             : {
    1166           0 :         struct spdk_nvmf_ctrlr *ctrlr = ctx;
    1167             :         struct spdk_nvmf_poll_group *group;
    1168             :         struct spdk_nvmf_ns *ns;
    1169             :         struct spdk_nvmf_subsystem_pg_ns_info *ns_info;
    1170             : 
    1171           0 :         spdk_poller_unregister(&ctrlr->cc_timeout_timer);
    1172           0 :         SPDK_DEBUGLOG(nvmf, "Ctrlr %p reset or shutdown timeout\n", ctrlr);
    1173             : 
    1174           0 :         if (!ctrlr->admin_qpair) {
    1175           0 :                 SPDK_NOTICELOG("Ctrlr %p admin qpair disconnected\n", ctrlr);
    1176           0 :                 return SPDK_POLLER_IDLE;
    1177             :         }
    1178             : 
    1179           0 :         group = ctrlr->admin_qpair->group;
    1180           0 :         assert(group != NULL && group->sgroups != NULL);
    1181             : 
    1182           0 :         for (ns = spdk_nvmf_subsystem_get_first_ns(ctrlr->subsys); ns != NULL;
    1183           0 :              ns = spdk_nvmf_subsystem_get_next_ns(ctrlr->subsys, ns)) {
    1184           0 :                 if (ns->bdev == NULL) {
    1185           0 :                         continue;
    1186             :                 }
    1187           0 :                 ns_info = &group->sgroups[ctrlr->subsys->id].ns_info[ns->opts.nsid - 1];
    1188           0 :                 SPDK_NOTICELOG("Ctrlr %p resetting NSID %u\n", ctrlr, ns->opts.nsid);
    1189           0 :                 spdk_bdev_reset(ns->desc, ns_info->channel, nvmf_bdev_complete_reset, NULL);
    1190             :         }
    1191             : 
    1192           0 :         return SPDK_POLLER_BUSY;
    1193             : }
    1194             : 
    1195             : const struct spdk_nvmf_registers *
    1196           0 : spdk_nvmf_ctrlr_get_regs(struct spdk_nvmf_ctrlr *ctrlr)
    1197             : {
    1198           0 :         return &ctrlr->vcprop;
    1199             : }
    1200             : 
    1201             : void
    1202           0 : nvmf_ctrlr_set_fatal_status(struct spdk_nvmf_ctrlr *ctrlr)
    1203             : {
    1204           0 :         ctrlr->vcprop.csts.bits.cfs = 1;
    1205           0 : }
    1206             : 
    1207             : static uint64_t
    1208           0 : nvmf_prop_get_cap(struct spdk_nvmf_ctrlr *ctrlr)
    1209             : {
    1210           0 :         return ctrlr->vcprop.cap.raw;
    1211             : }
    1212             : 
    1213             : static uint64_t
    1214           0 : nvmf_prop_get_vs(struct spdk_nvmf_ctrlr *ctrlr)
    1215             : {
    1216           0 :         return ctrlr->vcprop.vs.raw;
    1217             : }
    1218             : 
    1219             : static uint64_t
    1220           1 : nvmf_prop_get_cc(struct spdk_nvmf_ctrlr *ctrlr)
    1221             : {
    1222           1 :         return ctrlr->vcprop.cc.raw;
    1223             : }
    1224             : 
    1225             : static bool
    1226           1 : nvmf_prop_set_cc(struct spdk_nvmf_ctrlr *ctrlr, uint32_t value)
    1227             : {
    1228             :         union spdk_nvme_cc_register cc, diff;
    1229             :         uint32_t cc_timeout_ms;
    1230             : 
    1231           1 :         cc.raw = value;
    1232             : 
    1233           1 :         SPDK_DEBUGLOG(nvmf, "cur CC: 0x%08x\n", ctrlr->vcprop.cc.raw);
    1234           1 :         SPDK_DEBUGLOG(nvmf, "new CC: 0x%08x\n", cc.raw);
    1235             : 
    1236             :         /*
    1237             :          * Calculate which bits changed between the current and new CC.
    1238             :          * Mark each bit as 0 once it is handled to determine if any unhandled bits were changed.
    1239             :          */
    1240           1 :         diff.raw = cc.raw ^ ctrlr->vcprop.cc.raw;
    1241             : 
    1242           1 :         if (diff.bits.en) {
    1243           0 :                 if (cc.bits.en) {
    1244           0 :                         SPDK_DEBUGLOG(nvmf, "Property Set CC Enable!\n");
    1245           0 :                         nvmf_ctrlr_stop_association_timer(ctrlr);
    1246             : 
    1247           0 :                         ctrlr->vcprop.cc.bits.en = 1;
    1248           0 :                         ctrlr->vcprop.csts.bits.rdy = 1;
    1249             :                 } else {
    1250           0 :                         SPDK_DEBUGLOG(nvmf, "Property Set CC Disable!\n");
    1251           0 :                         if (ctrlr->disconnect_in_progress) {
    1252           0 :                                 SPDK_DEBUGLOG(nvmf, "Disconnect in progress\n");
    1253           0 :                                 return true;
    1254             :                         }
    1255             : 
    1256           0 :                         ctrlr->cc_timeout_timer = SPDK_POLLER_REGISTER(nvmf_ctrlr_cc_timeout, ctrlr,
    1257             :                                                   NVMF_CC_RESET_SHN_TIMEOUT_IN_MS * 1000);
    1258             :                         /* Make sure cc_timeout_ms is between cc_timeout_timer and Host reset/shutdown timeout */
    1259           0 :                         cc_timeout_ms = (NVMF_CC_RESET_SHN_TIMEOUT_IN_MS + NVMF_CTRLR_RESET_SHN_TIMEOUT_IN_MS) / 2;
    1260           0 :                         ctrlr->cc_timeout_tsc = spdk_get_ticks() + cc_timeout_ms * spdk_get_ticks_hz() / (uint64_t)1000;
    1261             : 
    1262           0 :                         ctrlr->vcprop.cc.bits.en = 0;
    1263           0 :                         ctrlr->disconnect_in_progress = true;
    1264           0 :                         ctrlr->disconnect_is_shn = false;
    1265           0 :                         spdk_for_each_channel(ctrlr->subsys->tgt,
    1266             :                                               nvmf_ctrlr_disconnect_io_qpairs_on_pg,
    1267             :                                               ctrlr,
    1268             :                                               nvmf_ctrlr_cc_reset_shn_done);
    1269             :                 }
    1270           0 :                 diff.bits.en = 0;
    1271             :         }
    1272             : 
    1273           1 :         if (diff.bits.shn) {
    1274           0 :                 if (cc.bits.shn == SPDK_NVME_SHN_NORMAL ||
    1275           0 :                     cc.bits.shn == SPDK_NVME_SHN_ABRUPT) {
    1276           0 :                         SPDK_DEBUGLOG(nvmf, "Property Set CC Shutdown %u%ub!\n",
    1277             :                                       cc.bits.shn >> 1, cc.bits.shn & 1);
    1278           0 :                         if (ctrlr->disconnect_in_progress) {
    1279           0 :                                 SPDK_DEBUGLOG(nvmf, "Disconnect in progress\n");
    1280           0 :                                 return true;
    1281             :                         }
    1282             : 
    1283           0 :                         ctrlr->cc_timeout_timer = SPDK_POLLER_REGISTER(nvmf_ctrlr_cc_timeout, ctrlr,
    1284             :                                                   NVMF_CC_RESET_SHN_TIMEOUT_IN_MS * 1000);
    1285             :                         /* Make sure cc_timeout_ms is between cc_timeout_timer and Host reset/shutdown timeout */
    1286           0 :                         cc_timeout_ms = (NVMF_CC_RESET_SHN_TIMEOUT_IN_MS + NVMF_CTRLR_RESET_SHN_TIMEOUT_IN_MS) / 2;
    1287           0 :                         ctrlr->cc_timeout_tsc = spdk_get_ticks() + cc_timeout_ms * spdk_get_ticks_hz() / (uint64_t)1000;
    1288             : 
    1289           0 :                         ctrlr->vcprop.cc.bits.shn = cc.bits.shn;
    1290           0 :                         ctrlr->disconnect_in_progress = true;
    1291           0 :                         ctrlr->disconnect_is_shn = true;
    1292           0 :                         spdk_for_each_channel(ctrlr->subsys->tgt,
    1293             :                                               nvmf_ctrlr_disconnect_io_qpairs_on_pg,
    1294             :                                               ctrlr,
    1295             :                                               nvmf_ctrlr_cc_reset_shn_done);
    1296             : 
    1297             :                         /* From the time a shutdown is initiated the controller shall disable
    1298             :                          * Keep Alive timer */
    1299           0 :                         nvmf_ctrlr_stop_keep_alive_timer(ctrlr);
    1300           0 :                 } else if (cc.bits.shn == 0) {
    1301           0 :                         ctrlr->vcprop.cc.bits.shn = 0;
    1302             :                 } else {
    1303           0 :                         SPDK_ERRLOG("Prop Set CC: Invalid SHN value %u%ub\n",
    1304             :                                     cc.bits.shn >> 1, cc.bits.shn & 1);
    1305           0 :                         return false;
    1306             :                 }
    1307           0 :                 diff.bits.shn = 0;
    1308             :         }
    1309             : 
    1310           1 :         if (diff.bits.iosqes) {
    1311           0 :                 SPDK_DEBUGLOG(nvmf, "Prop Set IOSQES = %u (%u bytes)\n",
    1312             :                               cc.bits.iosqes, 1u << cc.bits.iosqes);
    1313           0 :                 ctrlr->vcprop.cc.bits.iosqes = cc.bits.iosqes;
    1314           0 :                 diff.bits.iosqes = 0;
    1315             :         }
    1316             : 
    1317           1 :         if (diff.bits.iocqes) {
    1318           0 :                 SPDK_DEBUGLOG(nvmf, "Prop Set IOCQES = %u (%u bytes)\n",
    1319             :                               cc.bits.iocqes, 1u << cc.bits.iocqes);
    1320           0 :                 ctrlr->vcprop.cc.bits.iocqes = cc.bits.iocqes;
    1321           0 :                 diff.bits.iocqes = 0;
    1322             :         }
    1323             : 
    1324           1 :         if (diff.bits.ams) {
    1325           0 :                 SPDK_ERRLOG("Arbitration Mechanism Selected (AMS) 0x%x not supported!\n", cc.bits.ams);
    1326           0 :                 return false;
    1327             :         }
    1328             : 
    1329           1 :         if (diff.bits.mps) {
    1330           0 :                 SPDK_ERRLOG("Memory Page Size (MPS) %u KiB not supported!\n", (1 << (2 + cc.bits.mps)));
    1331           0 :                 return false;
    1332             :         }
    1333             : 
    1334           1 :         if (diff.bits.css) {
    1335           0 :                 if (cc.bits.css > SPDK_NVME_CC_CSS_IOCS) {
    1336           0 :                         SPDK_ERRLOG("I/O Command Set Selected (CSS) 0x%x not supported!\n", cc.bits.css);
    1337           0 :                         return false;
    1338             :                 }
    1339           0 :                 diff.bits.css = 0;
    1340             :         }
    1341             : 
    1342           1 :         if (diff.raw != 0) {
    1343             :                 /* Print an error message, but don't fail the command in this case.
    1344             :                  * If we did want to fail in this case, we'd need to ensure we acted
    1345             :                  * on no other bits or the initiator gets confused. */
    1346           0 :                 SPDK_ERRLOG("Prop Set CC toggled reserved bits 0x%x!\n", diff.raw);
    1347             :         }
    1348             : 
    1349           1 :         return true;
    1350             : }
    1351             : 
    1352             : static uint64_t
    1353           0 : nvmf_prop_get_csts(struct spdk_nvmf_ctrlr *ctrlr)
    1354             : {
    1355           0 :         return ctrlr->vcprop.csts.raw;
    1356             : }
    1357             : 
    1358             : static uint64_t
    1359           0 : nvmf_prop_get_aqa(struct spdk_nvmf_ctrlr *ctrlr)
    1360             : {
    1361           0 :         return ctrlr->vcprop.aqa.raw;
    1362             : }
    1363             : 
    1364             : static bool
    1365           0 : nvmf_prop_set_aqa(struct spdk_nvmf_ctrlr *ctrlr, uint32_t value)
    1366             : {
    1367             :         union spdk_nvme_aqa_register aqa;
    1368             : 
    1369           0 :         aqa.raw = value;
    1370             : 
    1371             :         /*
    1372             :          * We don't need to explicitly check for maximum size, as the fields are
    1373             :          * limited to 12 bits (4096).
    1374             :          */
    1375           0 :         if (aqa.bits.asqs < SPDK_NVME_ADMIN_QUEUE_MIN_ENTRIES - 1 ||
    1376           0 :             aqa.bits.acqs < SPDK_NVME_ADMIN_QUEUE_MIN_ENTRIES - 1 ||
    1377           0 :             aqa.bits.reserved1 != 0 || aqa.bits.reserved2 != 0) {
    1378           0 :                 return false;
    1379             :         }
    1380             : 
    1381           0 :         ctrlr->vcprop.aqa.raw = value;
    1382             : 
    1383           0 :         return true;
    1384             : }
    1385             : 
    1386             : static uint64_t
    1387           1 : nvmf_prop_get_asq(struct spdk_nvmf_ctrlr *ctrlr)
    1388             : {
    1389           1 :         return ctrlr->vcprop.asq;
    1390             : }
    1391             : 
    1392             : static bool
    1393           1 : nvmf_prop_set_asq_lower(struct spdk_nvmf_ctrlr *ctrlr, uint32_t value)
    1394             : {
    1395           1 :         ctrlr->vcprop.asq = (ctrlr->vcprop.asq & (0xFFFFFFFFULL << 32ULL)) | value;
    1396             : 
    1397           1 :         return true;
    1398             : }
    1399             : 
    1400             : static bool
    1401           0 : nvmf_prop_set_asq_upper(struct spdk_nvmf_ctrlr *ctrlr, uint32_t value)
    1402             : {
    1403           0 :         ctrlr->vcprop.asq = (ctrlr->vcprop.asq & 0xFFFFFFFFULL) | ((uint64_t)value << 32ULL);
    1404             : 
    1405           0 :         return true;
    1406             : }
    1407             : 
    1408             : static uint64_t
    1409           0 : nvmf_prop_get_acq(struct spdk_nvmf_ctrlr *ctrlr)
    1410             : {
    1411           0 :         return ctrlr->vcprop.acq;
    1412             : }
    1413             : 
    1414             : static bool
    1415           0 : nvmf_prop_set_acq_lower(struct spdk_nvmf_ctrlr *ctrlr, uint32_t value)
    1416             : {
    1417           0 :         ctrlr->vcprop.acq = (ctrlr->vcprop.acq & (0xFFFFFFFFULL << 32ULL)) | value;
    1418             : 
    1419           0 :         return true;
    1420             : }
    1421             : 
    1422             : static bool
    1423           0 : nvmf_prop_set_acq_upper(struct spdk_nvmf_ctrlr *ctrlr, uint32_t value)
    1424             : {
    1425           0 :         ctrlr->vcprop.acq = (ctrlr->vcprop.acq & 0xFFFFFFFFULL) | ((uint64_t)value << 32ULL);
    1426             : 
    1427           0 :         return true;
    1428             : }
    1429             : 
    1430             : struct nvmf_prop {
    1431             :         uint32_t ofst;
    1432             :         uint8_t size;
    1433             :         char name[11];
    1434             :         uint64_t (*get_cb)(struct spdk_nvmf_ctrlr *ctrlr);
    1435             :         bool (*set_cb)(struct spdk_nvmf_ctrlr *ctrlr, uint32_t value);
    1436             :         bool (*set_upper_cb)(struct spdk_nvmf_ctrlr *ctrlr, uint32_t value);
    1437             : };
    1438             : 
    1439             : #define PROP(field, size, get_cb, set_cb, set_upper_cb) \
    1440             :         { \
    1441             :                 offsetof(struct spdk_nvme_registers, field), \
    1442             :                 size, \
    1443             :                 #field, \
    1444             :                 get_cb, set_cb, set_upper_cb \
    1445             :         }
    1446             : 
    1447             : static const struct nvmf_prop nvmf_props[] = {
    1448             :         PROP(cap,  8, nvmf_prop_get_cap,  NULL,                    NULL),
    1449             :         PROP(vs,   4, nvmf_prop_get_vs,   NULL,                    NULL),
    1450             :         PROP(cc,   4, nvmf_prop_get_cc,   nvmf_prop_set_cc,        NULL),
    1451             :         PROP(csts, 4, nvmf_prop_get_csts, NULL,                    NULL),
    1452             :         PROP(aqa,  4, nvmf_prop_get_aqa,  nvmf_prop_set_aqa,       NULL),
    1453             :         PROP(asq,  8, nvmf_prop_get_asq,  nvmf_prop_set_asq_lower, nvmf_prop_set_asq_upper),
    1454             :         PROP(acq,  8, nvmf_prop_get_acq,  nvmf_prop_set_acq_lower, nvmf_prop_set_acq_upper),
    1455             : };
    1456             : 
    1457             : static const struct nvmf_prop *
    1458           6 : find_prop(uint32_t ofst, uint8_t size)
    1459             : {
    1460             :         size_t i;
    1461             : 
    1462          28 :         for (i = 0; i < SPDK_COUNTOF(nvmf_props); i++) {
    1463          27 :                 const struct nvmf_prop *prop = &nvmf_props[i];
    1464             : 
    1465          27 :                 if ((ofst >= prop->ofst) && (ofst + size <= prop->ofst + prop->size)) {
    1466           5 :                         return prop;
    1467             :                 }
    1468             :         }
    1469             : 
    1470           1 :         return NULL;
    1471             : }
    1472             : 
    1473             : static int
    1474           3 : nvmf_property_get(struct spdk_nvmf_request *req)
    1475             : {
    1476           3 :         struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
    1477           3 :         struct spdk_nvmf_fabric_prop_get_cmd *cmd = &req->cmd->prop_get_cmd;
    1478           3 :         struct spdk_nvmf_fabric_prop_get_rsp *response = &req->rsp->prop_get_rsp;
    1479             :         const struct nvmf_prop *prop;
    1480             :         uint8_t size;
    1481             : 
    1482           3 :         response->status.sc = 0;
    1483           3 :         response->value.u64 = 0;
    1484             : 
    1485           3 :         SPDK_DEBUGLOG(nvmf, "size %d, offset 0x%x\n",
    1486             :                       cmd->attrib.size, cmd->ofst);
    1487             : 
    1488           3 :         switch (cmd->attrib.size) {
    1489           3 :         case SPDK_NVMF_PROP_SIZE_4:
    1490           3 :                 size = 4;
    1491           3 :                 break;
    1492           0 :         case SPDK_NVMF_PROP_SIZE_8:
    1493           0 :                 size = 8;
    1494           0 :                 break;
    1495           0 :         default:
    1496           0 :                 SPDK_DEBUGLOG(nvmf, "Invalid size value %d\n", cmd->attrib.size);
    1497           0 :                 response->status.sct = SPDK_NVME_SCT_COMMAND_SPECIFIC;
    1498           0 :                 response->status.sc = SPDK_NVMF_FABRIC_SC_INVALID_PARAM;
    1499           0 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1500             :         }
    1501             : 
    1502           3 :         prop = find_prop(cmd->ofst, size);
    1503           3 :         if (prop == NULL || prop->get_cb == NULL) {
    1504           1 :                 response->status.sct = SPDK_NVME_SCT_COMMAND_SPECIFIC;
    1505           1 :                 response->status.sc = SPDK_NVMF_FABRIC_SC_INVALID_PARAM;
    1506           1 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1507             :         }
    1508             : 
    1509           2 :         SPDK_DEBUGLOG(nvmf, "name: %s\n", prop->name);
    1510             : 
    1511           2 :         response->value.u64 = prop->get_cb(ctrlr);
    1512             : 
    1513           2 :         if (size != prop->size) {
    1514             :                 /* The size must be 4 and the prop->size is 8. Figure out which part of the property to read. */
    1515           1 :                 assert(size == 4);
    1516           1 :                 assert(prop->size == 8);
    1517             : 
    1518           1 :                 if (cmd->ofst == prop->ofst) {
    1519             :                         /* Keep bottom 4 bytes only */
    1520           1 :                         response->value.u64 &= 0xFFFFFFFF;
    1521             :                 } else {
    1522             :                         /* Keep top 4 bytes only */
    1523           0 :                         response->value.u64 >>= 32;
    1524             :                 }
    1525             :         }
    1526             : 
    1527           2 :         SPDK_DEBUGLOG(nvmf, "response value: 0x%" PRIx64 "\n", response->value.u64);
    1528             : 
    1529           2 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1530             : }
    1531             : 
    1532             : static int
    1533           3 : nvmf_property_set(struct spdk_nvmf_request *req)
    1534             : {
    1535           3 :         struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
    1536           3 :         struct spdk_nvmf_fabric_prop_set_cmd *cmd = &req->cmd->prop_set_cmd;
    1537           3 :         struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl;
    1538             :         const struct nvmf_prop *prop;
    1539             :         uint64_t value;
    1540             :         uint8_t size;
    1541             :         bool ret;
    1542             : 
    1543           3 :         SPDK_DEBUGLOG(nvmf, "size %d, offset 0x%x, value 0x%" PRIx64 "\n",
    1544             :                       cmd->attrib.size, cmd->ofst, cmd->value.u64);
    1545             : 
    1546           3 :         switch (cmd->attrib.size) {
    1547           3 :         case SPDK_NVMF_PROP_SIZE_4:
    1548           3 :                 size = 4;
    1549           3 :                 break;
    1550           0 :         case SPDK_NVMF_PROP_SIZE_8:
    1551           0 :                 size = 8;
    1552           0 :                 break;
    1553           0 :         default:
    1554           0 :                 SPDK_DEBUGLOG(nvmf, "Invalid size value %d\n", cmd->attrib.size);
    1555           0 :                 response->status.sct = SPDK_NVME_SCT_COMMAND_SPECIFIC;
    1556           0 :                 response->status.sc = SPDK_NVMF_FABRIC_SC_INVALID_PARAM;
    1557           0 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1558             :         }
    1559             : 
    1560           3 :         prop = find_prop(cmd->ofst, size);
    1561           3 :         if (prop == NULL || prop->set_cb == NULL) {
    1562           1 :                 SPDK_INFOLOG(nvmf, "Invalid offset 0x%x\n", cmd->ofst);
    1563           1 :                 response->status.sct = SPDK_NVME_SCT_COMMAND_SPECIFIC;
    1564           1 :                 response->status.sc = SPDK_NVMF_FABRIC_SC_INVALID_PARAM;
    1565           1 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1566             :         }
    1567             : 
    1568           2 :         SPDK_DEBUGLOG(nvmf, "name: %s\n", prop->name);
    1569             : 
    1570           2 :         value = cmd->value.u64;
    1571             : 
    1572           2 :         if (prop->size == 4) {
    1573           1 :                 ret = prop->set_cb(ctrlr, (uint32_t)value);
    1574           1 :         } else if (size != prop->size) {
    1575             :                 /* The size must be 4 and the prop->size is 8. Figure out which part of the property to write. */
    1576           1 :                 assert(size == 4);
    1577           1 :                 assert(prop->size == 8);
    1578             : 
    1579           1 :                 if (cmd->ofst == prop->ofst) {
    1580           1 :                         ret = prop->set_cb(ctrlr, (uint32_t)value);
    1581             :                 } else {
    1582           0 :                         ret = prop->set_upper_cb(ctrlr, (uint32_t)value);
    1583             :                 }
    1584             :         } else {
    1585           0 :                 ret = prop->set_cb(ctrlr, (uint32_t)value);
    1586           0 :                 if (ret) {
    1587           0 :                         ret = prop->set_upper_cb(ctrlr, (uint32_t)(value >> 32));
    1588             :                 }
    1589             :         }
    1590             : 
    1591           2 :         if (!ret) {
    1592           0 :                 SPDK_ERRLOG("prop set_cb failed\n");
    1593           0 :                 response->status.sct = SPDK_NVME_SCT_COMMAND_SPECIFIC;
    1594           0 :                 response->status.sc = SPDK_NVMF_FABRIC_SC_INVALID_PARAM;
    1595           0 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1596             :         }
    1597             : 
    1598           2 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1599             : }
    1600             : 
    1601             : static int
    1602           0 : nvmf_ctrlr_set_features_arbitration(struct spdk_nvmf_request *req)
    1603             : {
    1604           0 :         struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
    1605           0 :         struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
    1606             : 
    1607           0 :         SPDK_DEBUGLOG(nvmf, "Set Features - Arbitration (cdw11 = 0x%0x)\n", cmd->cdw11);
    1608             : 
    1609           0 :         ctrlr->feat.arbitration.raw = cmd->cdw11;
    1610           0 :         ctrlr->feat.arbitration.bits.reserved = 0;
    1611             : 
    1612           0 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1613             : }
    1614             : 
    1615             : static int
    1616           0 : nvmf_ctrlr_set_features_power_management(struct spdk_nvmf_request *req)
    1617             : {
    1618           0 :         struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
    1619           0 :         struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
    1620           0 :         struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl;
    1621             : 
    1622           0 :         SPDK_DEBUGLOG(nvmf, "Set Features - Power Management (cdw11 = 0x%0x)\n", cmd->cdw11);
    1623             : 
    1624             :         /* Only PS = 0 is allowed, since we report NPSS = 0 */
    1625           0 :         if (cmd->cdw11_bits.feat_power_management.bits.ps != 0) {
    1626           0 :                 SPDK_ERRLOG("Invalid power state %u\n", cmd->cdw11_bits.feat_power_management.bits.ps);
    1627           0 :                 rsp->status.sct = SPDK_NVME_SCT_GENERIC;
    1628           0 :                 rsp->status.sc = SPDK_NVME_SC_INVALID_FIELD;
    1629           0 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1630             :         }
    1631             : 
    1632           0 :         ctrlr->feat.power_management.raw = cmd->cdw11;
    1633           0 :         ctrlr->feat.power_management.bits.reserved = 0;
    1634             : 
    1635           0 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1636             : }
    1637             : 
    1638             : static bool
    1639           5 : temp_threshold_opts_valid(const union spdk_nvme_feat_temperature_threshold *opts)
    1640             : {
    1641             :         /*
    1642             :          * Valid TMPSEL values:
    1643             :          *  0000b - 1000b: temperature sensors
    1644             :          *  1111b: set all implemented temperature sensors
    1645             :          */
    1646           5 :         if (opts->bits.tmpsel >= 9 && opts->bits.tmpsel != 15) {
    1647             :                 /* 1001b - 1110b: reserved */
    1648           2 :                 SPDK_ERRLOG("Invalid TMPSEL %u\n", opts->bits.tmpsel);
    1649           2 :                 return false;
    1650             :         }
    1651             : 
    1652             :         /*
    1653             :          * Valid THSEL values:
    1654             :          *  00b: over temperature threshold
    1655             :          *  01b: under temperature threshold
    1656             :          */
    1657           3 :         if (opts->bits.thsel > 1) {
    1658             :                 /* 10b - 11b: reserved */
    1659           1 :                 SPDK_ERRLOG("Invalid THSEL %u\n", opts->bits.thsel);
    1660           1 :                 return false;
    1661             :         }
    1662             : 
    1663           2 :         return true;
    1664             : }
    1665             : 
    1666             : static int
    1667           3 : nvmf_ctrlr_set_features_temperature_threshold(struct spdk_nvmf_request *req)
    1668             : {
    1669           3 :         struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
    1670           3 :         struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl;
    1671             : 
    1672           3 :         SPDK_DEBUGLOG(nvmf, "Set Features - Temperature Threshold (cdw11 = 0x%0x)\n", cmd->cdw11);
    1673             : 
    1674           3 :         if (!temp_threshold_opts_valid(&cmd->cdw11_bits.feat_temp_threshold)) {
    1675           2 :                 rsp->status.sct = SPDK_NVME_SCT_GENERIC;
    1676           2 :                 rsp->status.sc = SPDK_NVME_SC_INVALID_FIELD;
    1677           2 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1678             :         }
    1679             : 
    1680             :         /* TODO: no sensors implemented - ignore new values */
    1681           1 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1682             : }
    1683             : 
    1684             : static int
    1685           2 : nvmf_ctrlr_get_features_temperature_threshold(struct spdk_nvmf_request *req)
    1686             : {
    1687           2 :         struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
    1688           2 :         struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl;
    1689             : 
    1690           2 :         SPDK_DEBUGLOG(nvmf, "Get Features - Temperature Threshold (cdw11 = 0x%0x)\n", cmd->cdw11);
    1691             : 
    1692           2 :         if (!temp_threshold_opts_valid(&cmd->cdw11_bits.feat_temp_threshold)) {
    1693           1 :                 rsp->status.sct = SPDK_NVME_SCT_GENERIC;
    1694           1 :                 rsp->status.sc = SPDK_NVME_SC_INVALID_FIELD;
    1695           1 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1696             :         }
    1697             : 
    1698             :         /* TODO: no sensors implemented - return 0 for all thresholds */
    1699           1 :         rsp->cdw0 = 0;
    1700             : 
    1701           1 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1702             : }
    1703             : 
    1704             : static int
    1705           0 : nvmf_ctrlr_get_features_interrupt_vector_configuration(struct spdk_nvmf_request *req)
    1706             : {
    1707           0 :         struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
    1708           0 :         struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
    1709           0 :         struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl;
    1710           0 :         union spdk_nvme_feat_interrupt_vector_configuration iv_conf = {};
    1711             : 
    1712           0 :         SPDK_DEBUGLOG(nvmf, "Get Features - Interrupt Vector Configuration (cdw11 = 0x%0x)\n", cmd->cdw11);
    1713             : 
    1714           0 :         iv_conf.bits.iv = cmd->cdw11_bits.feat_interrupt_vector_configuration.bits.iv;
    1715           0 :         iv_conf.bits.cd = ctrlr->feat.interrupt_vector_configuration.bits.cd;
    1716           0 :         rsp->cdw0 = iv_conf.raw;
    1717             : 
    1718           0 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1719             : }
    1720             : 
    1721             : static int
    1722           2 : nvmf_ctrlr_set_features_error_recovery(struct spdk_nvmf_request *req)
    1723             : {
    1724           2 :         struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
    1725           2 :         struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
    1726           2 :         struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl;
    1727             : 
    1728           2 :         SPDK_DEBUGLOG(nvmf, "Set Features - Error Recovery (cdw11 = 0x%0x)\n", cmd->cdw11);
    1729             : 
    1730           2 :         if (cmd->cdw11_bits.feat_error_recovery.bits.dulbe) {
    1731             :                 /*
    1732             :                  * Host is not allowed to set this bit, since we don't advertise it in
    1733             :                  * Identify Namespace.
    1734             :                  */
    1735           1 :                 SPDK_ERRLOG("Host set unsupported DULBE bit\n");
    1736           1 :                 rsp->status.sct = SPDK_NVME_SCT_GENERIC;
    1737           1 :                 rsp->status.sc = SPDK_NVME_SC_INVALID_FIELD;
    1738           1 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1739             :         }
    1740             : 
    1741           1 :         ctrlr->feat.error_recovery.raw = cmd->cdw11;
    1742           1 :         ctrlr->feat.error_recovery.bits.reserved = 0;
    1743             : 
    1744           1 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1745             : }
    1746             : 
    1747             : static int
    1748           0 : nvmf_ctrlr_set_features_volatile_write_cache(struct spdk_nvmf_request *req)
    1749             : {
    1750           0 :         struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
    1751           0 :         struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
    1752             : 
    1753           0 :         SPDK_DEBUGLOG(nvmf, "Set Features - Volatile Write Cache (cdw11 = 0x%0x)\n", cmd->cdw11);
    1754             : 
    1755           0 :         ctrlr->feat.volatile_write_cache.raw = cmd->cdw11;
    1756           0 :         ctrlr->feat.volatile_write_cache.bits.reserved = 0;
    1757             : 
    1758           0 :         SPDK_DEBUGLOG(nvmf, "Set Features - Volatile Write Cache %s\n",
    1759             :                       ctrlr->feat.volatile_write_cache.bits.wce ? "Enabled" : "Disabled");
    1760           0 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1761             : }
    1762             : 
    1763             : static int
    1764           0 : nvmf_ctrlr_set_features_write_atomicity(struct spdk_nvmf_request *req)
    1765             : {
    1766           0 :         struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
    1767           0 :         struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
    1768             : 
    1769           0 :         SPDK_DEBUGLOG(nvmf, "Set Features - Write Atomicity (cdw11 = 0x%0x)\n", cmd->cdw11);
    1770             : 
    1771           0 :         ctrlr->feat.write_atomicity.raw = cmd->cdw11;
    1772           0 :         ctrlr->feat.write_atomicity.bits.reserved = 0;
    1773             : 
    1774           0 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1775             : }
    1776             : 
    1777             : static int
    1778           0 : nvmf_ctrlr_set_features_host_identifier(struct spdk_nvmf_request *req)
    1779             : {
    1780           0 :         struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl;
    1781             : 
    1782           0 :         SPDK_ERRLOG("Set Features - Host Identifier not allowed\n");
    1783           0 :         response->status.sc = SPDK_NVME_SC_COMMAND_SEQUENCE_ERROR;
    1784           0 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1785             : }
    1786             : 
    1787             : static int
    1788           0 : nvmf_ctrlr_get_features_host_identifier(struct spdk_nvmf_request *req)
    1789             : {
    1790           0 :         struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
    1791           0 :         struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
    1792           0 :         struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl;
    1793           0 :         struct spdk_iov_xfer ix;
    1794             : 
    1795           0 :         SPDK_DEBUGLOG(nvmf, "Get Features - Host Identifier\n");
    1796             : 
    1797           0 :         if (!cmd->cdw11_bits.feat_host_identifier.bits.exhid) {
    1798             :                 /* NVMe over Fabrics requires EXHID=1 (128-bit/16-byte host ID) */
    1799           0 :                 SPDK_ERRLOG("Get Features - Host Identifier with EXHID=0 not allowed\n");
    1800           0 :                 response->status.sc = SPDK_NVME_SC_INVALID_FIELD;
    1801           0 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1802             :         }
    1803             : 
    1804           0 :         if (req->iovcnt < 1 || req->length < sizeof(ctrlr->hostid)) {
    1805           0 :                 SPDK_ERRLOG("Invalid data buffer for Get Features - Host Identifier\n");
    1806           0 :                 response->status.sc = SPDK_NVME_SC_INVALID_FIELD;
    1807           0 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1808             :         }
    1809             : 
    1810           0 :         spdk_iov_xfer_init(&ix, req->iov, req->iovcnt);
    1811           0 :         spdk_iov_xfer_from_buf(&ix, &ctrlr->hostid, sizeof(ctrlr->hostid));
    1812             : 
    1813           0 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1814             : }
    1815             : 
    1816             : static int
    1817           0 : nvmf_ctrlr_get_features_reservation_notification_mask(struct spdk_nvmf_request *req)
    1818             : {
    1819           0 :         struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
    1820           0 :         struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
    1821           0 :         struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl;
    1822             :         struct spdk_nvmf_ns *ns;
    1823             : 
    1824           0 :         SPDK_DEBUGLOG(nvmf, "get Features - Reservation Notification Mask\n");
    1825             : 
    1826           0 :         if (cmd->nsid == SPDK_NVME_GLOBAL_NS_TAG) {
    1827           0 :                 SPDK_ERRLOG("get Features - Invalid Namespace ID\n");
    1828           0 :                 rsp->status.sc = SPDK_NVME_SC_INVALID_FIELD;
    1829           0 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1830             :         }
    1831             : 
    1832           0 :         ns = nvmf_ctrlr_get_ns(ctrlr, cmd->nsid);
    1833           0 :         if (ns == NULL) {
    1834           0 :                 SPDK_ERRLOG("get Features - Invalid Namespace ID\n");
    1835           0 :                 rsp->status.sc = SPDK_NVME_SC_INVALID_FIELD;
    1836           0 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1837             :         }
    1838           0 :         rsp->cdw0 = ns->mask;
    1839             : 
    1840           0 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1841             : }
    1842             : 
    1843             : static int
    1844           0 : nvmf_ctrlr_set_features_reservation_notification_mask(struct spdk_nvmf_request *req)
    1845             : {
    1846           0 :         struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
    1847           0 :         struct spdk_nvmf_subsystem *subsystem = ctrlr->subsys;
    1848           0 :         struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
    1849           0 :         struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl;
    1850             :         struct spdk_nvmf_ns *ns;
    1851             : 
    1852           0 :         SPDK_DEBUGLOG(nvmf, "Set Features - Reservation Notification Mask\n");
    1853             : 
    1854           0 :         if (cmd->nsid == SPDK_NVME_GLOBAL_NS_TAG) {
    1855           0 :                 for (ns = spdk_nvmf_subsystem_get_first_ns(subsystem); ns != NULL;
    1856           0 :                      ns = spdk_nvmf_subsystem_get_next_ns(subsystem, ns)) {
    1857           0 :                         ns->mask = cmd->cdw11;
    1858             :                 }
    1859           0 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1860             :         }
    1861             : 
    1862           0 :         ns = nvmf_ctrlr_get_ns(ctrlr, cmd->nsid);
    1863           0 :         if (ns == NULL) {
    1864           0 :                 SPDK_ERRLOG("Set Features - Invalid Namespace ID\n");
    1865           0 :                 rsp->status.sc = SPDK_NVME_SC_INVALID_FIELD;
    1866           0 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1867             :         }
    1868           0 :         ns->mask = cmd->cdw11;
    1869             : 
    1870           0 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1871             : }
    1872             : 
    1873             : static int
    1874           1 : nvmf_ctrlr_get_features_reservation_persistence(struct spdk_nvmf_request *req)
    1875             : {
    1876           1 :         struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
    1877           1 :         struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
    1878           1 :         struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl;
    1879             :         struct spdk_nvmf_ns *ns;
    1880             : 
    1881           1 :         SPDK_DEBUGLOG(nvmf, "Get Features - Reservation Persistence\n");
    1882             : 
    1883           1 :         ns = nvmf_ctrlr_get_ns(ctrlr, cmd->nsid);
    1884             :         /* NSID with SPDK_NVME_GLOBAL_NS_TAG (=0xffffffff) also included */
    1885           1 :         if (ns == NULL) {
    1886           0 :                 SPDK_ERRLOG("Get Features - Invalid Namespace ID\n");
    1887           0 :                 response->status.sct = SPDK_NVME_SCT_GENERIC;
    1888           0 :                 response->status.sc = SPDK_NVME_SC_INVALID_FIELD;
    1889           0 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1890             :         }
    1891             : 
    1892           1 :         response->cdw0 = ns->ptpl_activated;
    1893             : 
    1894           1 :         response->status.sct = SPDK_NVME_SCT_GENERIC;
    1895           1 :         response->status.sc = SPDK_NVME_SC_SUCCESS;
    1896           1 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1897             : }
    1898             : 
    1899             : static int
    1900           1 : nvmf_ctrlr_set_features_reservation_persistence(struct spdk_nvmf_request *req)
    1901             : {
    1902           1 :         struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
    1903           1 :         struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
    1904           1 :         struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl;
    1905             :         struct spdk_nvmf_ns *ns;
    1906             :         bool ptpl;
    1907             : 
    1908           1 :         SPDK_DEBUGLOG(nvmf, "Set Features - Reservation Persistence\n");
    1909             : 
    1910           1 :         ns = nvmf_ctrlr_get_ns(ctrlr, cmd->nsid);
    1911           1 :         ptpl = cmd->cdw11_bits.feat_rsv_persistence.bits.ptpl;
    1912             : 
    1913           1 :         if (cmd->nsid != SPDK_NVME_GLOBAL_NS_TAG && ns && nvmf_ns_is_ptpl_capable(ns)) {
    1914           1 :                 ns->ptpl_activated = ptpl;
    1915           0 :         } else if (cmd->nsid == SPDK_NVME_GLOBAL_NS_TAG) {
    1916           0 :                 for (ns = spdk_nvmf_subsystem_get_first_ns(ctrlr->subsys); ns;
    1917           0 :                      ns = spdk_nvmf_subsystem_get_next_ns(ctrlr->subsys, ns)) {
    1918           0 :                         if (nvmf_ns_is_ptpl_capable(ns)) {
    1919           0 :                                 ns->ptpl_activated = ptpl;
    1920             :                         }
    1921             :                 }
    1922             :         } else {
    1923           0 :                 SPDK_ERRLOG("Set Features - Invalid Namespace ID or Reservation Configuration\n");
    1924           0 :                 response->status.sct = SPDK_NVME_SCT_GENERIC;
    1925           0 :                 response->status.sc = SPDK_NVME_SC_INVALID_FIELD;
    1926           0 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1927             :         }
    1928             : 
    1929             :         /* TODO: Feature not changeable for now */
    1930           1 :         response->status.sct = SPDK_NVME_SCT_COMMAND_SPECIFIC;
    1931           1 :         response->status.sc = SPDK_NVME_SC_FEATURE_ID_NOT_SAVEABLE;
    1932           1 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1933             : }
    1934             : 
    1935             : static int
    1936           3 : nvmf_ctrlr_get_features_host_behavior_support(struct spdk_nvmf_request *req)
    1937             : {
    1938           3 :         struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
    1939           3 :         struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl;
    1940           3 :         struct spdk_nvme_host_behavior host_behavior = {};
    1941           3 :         struct spdk_iov_xfer ix;
    1942             : 
    1943           3 :         SPDK_DEBUGLOG(nvmf, "Get Features - Host Behavior Support\n");
    1944             : 
    1945           3 :         if (req->iovcnt < 1 || req->length < sizeof(struct spdk_nvme_host_behavior)) {
    1946           2 :                 SPDK_ERRLOG("invalid data buffer for Host Behavior Support\n");
    1947           2 :                 response->status.sct = SPDK_NVME_SCT_GENERIC;
    1948           2 :                 response->status.sc = SPDK_NVME_SC_INVALID_FIELD;
    1949           2 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1950             :         }
    1951             : 
    1952           1 :         host_behavior.acre = ctrlr->acre_enabled;
    1953           1 :         host_behavior.lbafee = ctrlr->lbafee_enabled;
    1954             : 
    1955           1 :         spdk_iov_xfer_init(&ix, req->iov, req->iovcnt);
    1956           1 :         spdk_iov_xfer_from_buf(&ix, &host_behavior, sizeof(host_behavior));
    1957             : 
    1958           1 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1959             : }
    1960             : 
    1961             : static int
    1962           6 : nvmf_ctrlr_set_features_host_behavior_support(struct spdk_nvmf_request *req)
    1963             : {
    1964           6 :         struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
    1965           6 :         struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl;
    1966             :         struct spdk_nvme_host_behavior *host_behavior;
    1967             : 
    1968           6 :         SPDK_DEBUGLOG(nvmf, "Set Features - Host Behavior Support\n");
    1969           6 :         if (req->iovcnt != 1) {
    1970           1 :                 SPDK_ERRLOG("Host Behavior Support invalid iovcnt: %d\n", req->iovcnt);
    1971           1 :                 response->status.sct = SPDK_NVME_SCT_GENERIC;
    1972           1 :                 response->status.sc = SPDK_NVME_SC_INVALID_FIELD;
    1973           1 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1974             :         }
    1975           5 :         if (req->iov[0].iov_len != sizeof(struct spdk_nvme_host_behavior)) {
    1976           1 :                 SPDK_ERRLOG("Host Behavior Support invalid iov_len: %zd\n", req->iov[0].iov_len);
    1977           1 :                 response->status.sct = SPDK_NVME_SCT_GENERIC;
    1978           1 :                 response->status.sc = SPDK_NVME_SC_INVALID_FIELD;
    1979           1 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1980             :         }
    1981             : 
    1982           4 :         host_behavior = (struct spdk_nvme_host_behavior *)req->iov[0].iov_base;
    1983           4 :         if (host_behavior->acre == 0) {
    1984           1 :                 ctrlr->acre_enabled = false;
    1985           3 :         } else if (host_behavior->acre == 1) {
    1986           1 :                 ctrlr->acre_enabled = true;
    1987             :         } else {
    1988           2 :                 SPDK_ERRLOG("Host Behavior Support invalid acre: 0x%02x\n", host_behavior->acre);
    1989           2 :                 response->status.sct = SPDK_NVME_SCT_GENERIC;
    1990           2 :                 response->status.sc = SPDK_NVME_SC_INVALID_FIELD;
    1991           2 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1992             :         }
    1993           2 :         if (host_behavior->lbafee == 0) {
    1994           1 :                 ctrlr->lbafee_enabled = false;
    1995           1 :         } else if (host_behavior->lbafee == 1) {
    1996           1 :                 ctrlr->lbafee_enabled = true;
    1997             :         } else {
    1998           0 :                 SPDK_ERRLOG("Host Behavior Support invalid acre: 0x%02x\n", host_behavior->lbafee);
    1999           0 :                 response->status.sct = SPDK_NVME_SCT_GENERIC;
    2000           0 :                 response->status.sc = SPDK_NVME_SC_INVALID_FIELD;
    2001           0 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    2002             :         }
    2003           2 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    2004             : }
    2005             : 
    2006             : static int
    2007           0 : nvmf_ctrlr_set_features_keep_alive_timer(struct spdk_nvmf_request *req)
    2008             : {
    2009           0 :         struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
    2010           0 :         struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
    2011           0 :         struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl;
    2012             : 
    2013           0 :         SPDK_DEBUGLOG(nvmf, "Set Features - Keep Alive Timer (%u ms)\n", cmd->cdw11);
    2014             : 
    2015             :         /*
    2016             :          * if attempts to disable keep alive by setting kato to 0h
    2017             :          * a status value of keep alive invalid shall be returned
    2018             :          */
    2019           0 :         if (cmd->cdw11_bits.feat_keep_alive_timer.bits.kato == 0) {
    2020           0 :                 rsp->status.sc = SPDK_NVME_SC_KEEP_ALIVE_INVALID;
    2021           0 :         } else if (cmd->cdw11_bits.feat_keep_alive_timer.bits.kato < MIN_KEEP_ALIVE_TIMEOUT_IN_MS) {
    2022           0 :                 ctrlr->feat.keep_alive_timer.bits.kato = MIN_KEEP_ALIVE_TIMEOUT_IN_MS;
    2023             :         } else {
    2024             :                 /* round up to milliseconds */
    2025           0 :                 ctrlr->feat.keep_alive_timer.bits.kato = spdk_divide_round_up(
    2026           0 :                                         cmd->cdw11_bits.feat_keep_alive_timer.bits.kato,
    2027             :                                         KAS_DEFAULT_VALUE * KAS_TIME_UNIT_IN_MS) *
    2028             :                                 KAS_DEFAULT_VALUE * KAS_TIME_UNIT_IN_MS;
    2029             :         }
    2030             : 
    2031             :         /*
    2032             :          * if change the keep alive timeout value successfully
    2033             :          * update the keep alive poller.
    2034             :          */
    2035           0 :         if (cmd->cdw11_bits.feat_keep_alive_timer.bits.kato != 0) {
    2036           0 :                 if (ctrlr->keep_alive_poller != NULL) {
    2037           0 :                         spdk_poller_unregister(&ctrlr->keep_alive_poller);
    2038             :                 }
    2039           0 :                 ctrlr->keep_alive_poller = SPDK_POLLER_REGISTER(nvmf_ctrlr_keep_alive_poll, ctrlr,
    2040             :                                            ctrlr->feat.keep_alive_timer.bits.kato * 1000);
    2041             :         }
    2042             : 
    2043           0 :         SPDK_DEBUGLOG(nvmf, "Set Features - Keep Alive Timer set to %u ms\n",
    2044             :                       ctrlr->feat.keep_alive_timer.bits.kato);
    2045             : 
    2046           0 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    2047             : }
    2048             : 
    2049             : static int
    2050           0 : nvmf_ctrlr_set_features_number_of_queues(struct spdk_nvmf_request *req)
    2051             : {
    2052           0 :         struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
    2053           0 :         struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
    2054           0 :         struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl;
    2055             :         uint32_t count;
    2056             : 
    2057           0 :         SPDK_DEBUGLOG(nvmf, "Set Features - Number of Queues, cdw11 0x%x\n",
    2058             :                       req->cmd->nvme_cmd.cdw11);
    2059             : 
    2060           0 :         if (cmd->cdw11_bits.feat_num_of_queues.bits.ncqr == UINT16_MAX ||
    2061           0 :             cmd->cdw11_bits.feat_num_of_queues.bits.nsqr == UINT16_MAX) {
    2062           0 :                 rsp->status.sc = SPDK_NVME_SC_INVALID_FIELD;
    2063           0 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    2064             :         }
    2065             : 
    2066           0 :         count = spdk_bit_array_count_set(ctrlr->qpair_mask);
    2067             :         /* verify that the controller is ready to process commands */
    2068           0 :         if (count > 1) {
    2069           0 :                 SPDK_DEBUGLOG(nvmf, "Queue pairs already active!\n");
    2070           0 :                 rsp->status.sc = SPDK_NVME_SC_COMMAND_SEQUENCE_ERROR;
    2071             :         } else {
    2072             :                 /*
    2073             :                  * Ignore the value requested by the host -
    2074             :                  * always return the pre-configured value based on max_qpairs_allowed.
    2075             :                  */
    2076           0 :                 rsp->cdw0 = ctrlr->feat.number_of_queues.raw;
    2077             :         }
    2078             : 
    2079           0 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    2080             : }
    2081             : 
    2082             : SPDK_STATIC_ASSERT(sizeof(struct spdk_nvmf_ctrlr) == 4928,
    2083             :                    "Please check migration fields that need to be added or not");
    2084             : 
    2085             : static void
    2086           0 : nvmf_ctrlr_migr_data_copy(struct spdk_nvmf_ctrlr_migr_data *data,
    2087             :                           const struct spdk_nvmf_ctrlr_migr_data *data_src, size_t data_size)
    2088             : {
    2089           0 :         assert(data);
    2090           0 :         assert(data_src);
    2091           0 :         assert(data_size);
    2092             : 
    2093           0 :         memcpy(&data->regs, &data_src->regs, spdk_min(data->regs_size, data_src->regs_size));
    2094           0 :         memcpy(&data->feat, &data_src->feat, spdk_min(data->feat_size, data_src->feat_size));
    2095             : 
    2096             : #define SET_FIELD(field) \
    2097             :     if (offsetof(struct spdk_nvmf_ctrlr_migr_data, field) + sizeof(data->field) <= data_size) { \
    2098             :         data->field = data_src->field; \
    2099             :     } \
    2100             : 
    2101           0 :         SET_FIELD(cntlid);
    2102           0 :         SET_FIELD(acre);
    2103           0 :         SET_FIELD(num_aer_cids);
    2104           0 :         SET_FIELD(num_async_events);
    2105           0 :         SET_FIELD(notice_aen_mask);
    2106             : #undef SET_FIELD
    2107             : 
    2108             : #define SET_ARRAY(arr) \
    2109             :     if (offsetof(struct spdk_nvmf_ctrlr_migr_data, arr) + sizeof(data->arr) <= data_size) { \
    2110             :         memcpy(&data->arr, &data_src->arr, sizeof(data->arr)); \
    2111             :     } \
    2112             : 
    2113           0 :         SET_ARRAY(async_events);
    2114           0 :         SET_ARRAY(aer_cids);
    2115             : #undef SET_ARRAY
    2116           0 : }
    2117             : 
    2118             : int
    2119           0 : spdk_nvmf_ctrlr_save_migr_data(struct spdk_nvmf_ctrlr *ctrlr,
    2120             :                                struct spdk_nvmf_ctrlr_migr_data *data)
    2121             : {
    2122             :         struct spdk_nvmf_async_event_completion *event, *event_tmp;
    2123             :         uint32_t i;
    2124           0 :         struct spdk_nvmf_ctrlr_migr_data data_local = {
    2125             :                 .data_size = offsetof(struct spdk_nvmf_ctrlr_migr_data, unused),
    2126             :                 .regs_size = sizeof(struct spdk_nvmf_registers),
    2127             :                 .feat_size = sizeof(struct spdk_nvmf_ctrlr_feat)
    2128             :         };
    2129             : 
    2130           0 :         assert(data->data_size <= sizeof(data_local));
    2131           0 :         assert(spdk_get_thread() == ctrlr->thread);
    2132             : 
    2133           0 :         memcpy(&data_local.regs, &ctrlr->vcprop, sizeof(struct spdk_nvmf_registers));
    2134           0 :         memcpy(&data_local.feat, &ctrlr->feat, sizeof(struct spdk_nvmf_ctrlr_feat));
    2135             : 
    2136           0 :         data_local.cntlid = ctrlr->cntlid;
    2137           0 :         data_local.acre = ctrlr->acre_enabled;
    2138           0 :         data_local.num_aer_cids = ctrlr->nr_aer_reqs;
    2139             : 
    2140           0 :         STAILQ_FOREACH_SAFE(event, &ctrlr->async_events, link, event_tmp) {
    2141           0 :                 if (data_local.num_async_events + 1 > SPDK_NVMF_MIGR_MAX_PENDING_AERS) {
    2142           0 :                         SPDK_ERRLOG("ctrlr %p has too many pending AERs\n", ctrlr);
    2143           0 :                         break;
    2144             :                 }
    2145             : 
    2146           0 :                 data_local.async_events[data_local.num_async_events++].raw = event->event.raw;
    2147             :         }
    2148             : 
    2149           0 :         for (i = 0; i < ctrlr->nr_aer_reqs; i++) {
    2150           0 :                 struct spdk_nvmf_request *req = ctrlr->aer_req[i];
    2151           0 :                 data_local.aer_cids[i] = req->cmd->nvme_cmd.cid;
    2152             :         }
    2153           0 :         data_local.notice_aen_mask = ctrlr->notice_aen_mask;
    2154             : 
    2155           0 :         nvmf_ctrlr_migr_data_copy(data, &data_local, spdk_min(data->data_size, data_local.data_size));
    2156           0 :         return 0;
    2157             : }
    2158             : 
    2159             : int
    2160           0 : spdk_nvmf_ctrlr_restore_migr_data(struct spdk_nvmf_ctrlr *ctrlr,
    2161             :                                   const struct spdk_nvmf_ctrlr_migr_data *data)
    2162             : {
    2163             :         uint32_t i;
    2164           0 :         struct spdk_nvmf_ctrlr_migr_data data_local = {
    2165             :                 .data_size = offsetof(struct spdk_nvmf_ctrlr_migr_data, unused),
    2166             :                 .regs_size = sizeof(struct spdk_nvmf_registers),
    2167             :                 .feat_size = sizeof(struct spdk_nvmf_ctrlr_feat)
    2168             :         };
    2169             : 
    2170           0 :         assert(data->data_size <= sizeof(data_local));
    2171           0 :         assert(spdk_get_thread() == ctrlr->thread);
    2172             : 
    2173             :         /* local version of data should have defaults set before copy */
    2174           0 :         nvmf_ctrlr_migr_data_copy(&data_local, data, spdk_min(data->data_size, data_local.data_size));
    2175           0 :         memcpy(&ctrlr->vcprop, &data_local.regs, sizeof(struct spdk_nvmf_registers));
    2176           0 :         memcpy(&ctrlr->feat, &data_local.feat, sizeof(struct spdk_nvmf_ctrlr_feat));
    2177             : 
    2178           0 :         ctrlr->cntlid = data_local.cntlid;
    2179           0 :         ctrlr->acre_enabled = data_local.acre;
    2180             : 
    2181           0 :         for (i = 0; i < data_local.num_async_events; i++) {
    2182             :                 struct spdk_nvmf_async_event_completion *event;
    2183             : 
    2184           0 :                 event = calloc(1, sizeof(*event));
    2185           0 :                 if (!event) {
    2186           0 :                         return -ENOMEM;
    2187             :                 }
    2188             : 
    2189           0 :                 event->event.raw = data_local.async_events[i].raw;
    2190           0 :                 STAILQ_INSERT_TAIL(&ctrlr->async_events, event, link);
    2191             :         }
    2192           0 :         ctrlr->notice_aen_mask = data_local.notice_aen_mask;
    2193             : 
    2194           0 :         return 0;
    2195             : }
    2196             : 
    2197             : static int
    2198           0 : nvmf_ctrlr_set_features_async_event_configuration(struct spdk_nvmf_request *req)
    2199             : {
    2200           0 :         struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
    2201           0 :         struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
    2202             : 
    2203           0 :         SPDK_DEBUGLOG(nvmf, "Set Features - Async Event Configuration, cdw11 0x%08x\n",
    2204             :                       cmd->cdw11);
    2205           0 :         ctrlr->feat.async_event_configuration.raw = cmd->cdw11;
    2206           0 :         ctrlr->feat.async_event_configuration.bits.reserved1 = 0;
    2207           0 :         ctrlr->feat.async_event_configuration.bits.reserved2 = 0;
    2208           0 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    2209             : }
    2210             : 
    2211             : static int
    2212          10 : nvmf_ctrlr_async_event_request(struct spdk_nvmf_request *req)
    2213             : {
    2214          10 :         struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
    2215          10 :         struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl;
    2216             :         struct spdk_nvmf_async_event_completion *pending_event;
    2217             : 
    2218          10 :         SPDK_DEBUGLOG(nvmf, "Async Event Request\n");
    2219             : 
    2220             :         /* Four asynchronous events are supported for now */
    2221          10 :         if (ctrlr->nr_aer_reqs >= SPDK_NVMF_MAX_ASYNC_EVENTS) {
    2222           1 :                 SPDK_DEBUGLOG(nvmf, "AERL exceeded\n");
    2223           1 :                 rsp->status.sct = SPDK_NVME_SCT_COMMAND_SPECIFIC;
    2224           1 :                 rsp->status.sc = SPDK_NVME_SC_ASYNC_EVENT_REQUEST_LIMIT_EXCEEDED;
    2225           1 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    2226             :         }
    2227             : 
    2228           9 :         if (!STAILQ_EMPTY(&ctrlr->async_events)) {
    2229           4 :                 pending_event = STAILQ_FIRST(&ctrlr->async_events);
    2230           4 :                 rsp->cdw0 = pending_event->event.raw;
    2231           4 :                 STAILQ_REMOVE(&ctrlr->async_events, pending_event, spdk_nvmf_async_event_completion, link);
    2232           4 :                 free(pending_event);
    2233           4 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    2234             :         }
    2235             : 
    2236           5 :         ctrlr->aer_req[ctrlr->nr_aer_reqs++] = req;
    2237           5 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
    2238             : }
    2239             : 
    2240             : static void
    2241           0 : nvmf_get_firmware_slot_log_page(struct iovec *iovs, int iovcnt, uint64_t offset, uint32_t length)
    2242             : {
    2243           0 :         struct spdk_nvme_firmware_page fw_page;
    2244             :         size_t copy_len;
    2245           0 :         struct spdk_iov_xfer ix;
    2246             : 
    2247           0 :         spdk_iov_xfer_init(&ix, iovs, iovcnt);
    2248             : 
    2249           0 :         memset(&fw_page, 0, sizeof(fw_page));
    2250           0 :         fw_page.afi.active_slot = 1;
    2251           0 :         fw_page.afi.next_reset_slot = 0;
    2252           0 :         spdk_strcpy_pad(fw_page.revision[0], FW_VERSION, sizeof(fw_page.revision[0]), ' ');
    2253             : 
    2254           0 :         if (offset < sizeof(fw_page)) {
    2255           0 :                 copy_len = spdk_min(sizeof(fw_page) - offset, length);
    2256           0 :                 if (copy_len > 0) {
    2257           0 :                         spdk_iov_xfer_from_buf(&ix, (const char *)&fw_page + offset, copy_len);
    2258             :                 }
    2259             :         }
    2260           0 : }
    2261             : 
    2262             : /*
    2263             :  * Asynchronous Event Mask Bit
    2264             :  */
    2265             : enum spdk_nvme_async_event_mask_bit {
    2266             :         /* Mask Namespace Change Notification */
    2267             :         SPDK_NVME_ASYNC_EVENT_NS_ATTR_CHANGE_MASK_BIT           = 0,
    2268             :         /* Mask Asymmetric Namespace Access Change Notification */
    2269             :         SPDK_NVME_ASYNC_EVENT_ANA_CHANGE_MASK_BIT               = 1,
    2270             :         /* Mask Discovery Log Change Notification */
    2271             :         SPDK_NVME_ASYNC_EVENT_DISCOVERY_LOG_CHANGE_MASK_BIT     = 2,
    2272             :         /* Mask Reservation Log Page Available Notification */
    2273             :         SPDK_NVME_ASYNC_EVENT_RESERVATION_LOG_AVAIL_MASK_BIT    = 3,
    2274             :         /* Mask Error Event */
    2275             :         SPDK_NVME_ASYNC_EVENT_ERROR_MASK_BIT                    = 4,
    2276             :         /* 4 - 63 Reserved */
    2277             : };
    2278             : 
    2279             : static inline void
    2280          20 : nvmf_ctrlr_unmask_aen(struct spdk_nvmf_ctrlr *ctrlr,
    2281             :                       enum spdk_nvme_async_event_mask_bit mask)
    2282             : {
    2283          20 :         ctrlr->notice_aen_mask &= ~(1 << mask);
    2284          20 : }
    2285             : 
    2286             : static inline bool
    2287          11 : nvmf_ctrlr_mask_aen(struct spdk_nvmf_ctrlr *ctrlr,
    2288             :                     enum spdk_nvme_async_event_mask_bit mask)
    2289             : {
    2290          11 :         if (ctrlr->notice_aen_mask & (1 << mask)) {
    2291           5 :                 return false;
    2292             :         } else {
    2293           6 :                 ctrlr->notice_aen_mask |= (1 << mask);
    2294           6 :                 return true;
    2295             :         }
    2296             : }
    2297             : 
    2298             : /* we have to use the typedef in the function declaration to appease astyle. */
    2299             : typedef enum spdk_nvme_ana_state spdk_nvme_ana_state_t;
    2300             : 
    2301             : static inline spdk_nvme_ana_state_t
    2302          36 : nvmf_ctrlr_get_ana_state(struct spdk_nvmf_ctrlr *ctrlr, uint32_t anagrpid)
    2303             : {
    2304          36 :         if (!ctrlr->subsys->flags.ana_reporting) {
    2305          36 :                 return SPDK_NVME_ANA_OPTIMIZED_STATE;
    2306             :         }
    2307             : 
    2308           0 :         if (spdk_unlikely(ctrlr->listener == NULL)) {
    2309           0 :                 return SPDK_NVME_ANA_INACCESSIBLE_STATE;
    2310             :         }
    2311             : 
    2312           0 :         assert(anagrpid - 1 < ctrlr->subsys->max_nsid);
    2313           0 :         return ctrlr->listener->ana_state[anagrpid - 1];
    2314             : }
    2315             : 
    2316             : static spdk_nvme_ana_state_t
    2317           8 : nvmf_ctrlr_get_ana_state_from_nsid(struct spdk_nvmf_ctrlr *ctrlr, uint32_t nsid)
    2318             : {
    2319             :         struct spdk_nvmf_ns *ns;
    2320             : 
    2321             :         /* We do not have NVM subsystem specific ANA state. Hence if NSID is either
    2322             :          * SPDK_NVMF_GLOBAL_NS_TAG, invalid, or for inactive namespace, return
    2323             :          * the optimized state.
    2324             :          */
    2325           8 :         ns = nvmf_ctrlr_get_ns(ctrlr, nsid);
    2326           8 :         if (ns == NULL) {
    2327           0 :                 return SPDK_NVME_ANA_OPTIMIZED_STATE;
    2328             :         }
    2329             : 
    2330           8 :         return nvmf_ctrlr_get_ana_state(ctrlr, ns->anagrpid);
    2331             : }
    2332             : 
    2333             : static void
    2334           1 : nvmf_get_error_log_page(struct spdk_nvmf_ctrlr *ctrlr, struct iovec *iovs, int iovcnt,
    2335             :                         uint64_t offset, uint32_t length, uint32_t rae)
    2336             : {
    2337           1 :         if (!rae) {
    2338           1 :                 nvmf_ctrlr_unmask_aen(ctrlr, SPDK_NVME_ASYNC_EVENT_ERROR_MASK_BIT);
    2339             :         }
    2340             : 
    2341             :         /* TODO: actually fill out log page data */
    2342           1 : }
    2343             : 
    2344             : static void
    2345          17 : nvmf_get_ana_log_page(struct spdk_nvmf_ctrlr *ctrlr, struct iovec *iovs, int iovcnt,
    2346             :                       uint64_t offset, uint32_t length, uint32_t rae)
    2347             : {
    2348          17 :         struct spdk_nvme_ana_page ana_hdr;
    2349          17 :         struct spdk_nvme_ana_group_descriptor ana_desc;
    2350             :         size_t copy_len, copied_len;
    2351          17 :         uint32_t num_anagrp = 0, anagrpid;
    2352             :         struct spdk_nvmf_ns *ns;
    2353          17 :         struct spdk_iov_xfer ix;
    2354             : 
    2355          17 :         spdk_iov_xfer_init(&ix, iovs, iovcnt);
    2356             : 
    2357          17 :         if (length == 0) {
    2358           0 :                 goto done;
    2359             :         }
    2360             : 
    2361          17 :         if (offset >= sizeof(ana_hdr)) {
    2362          13 :                 offset -= sizeof(ana_hdr);
    2363             :         } else {
    2364          20 :                 for (anagrpid = 1; anagrpid <= ctrlr->subsys->max_nsid; anagrpid++) {
    2365          16 :                         if (ctrlr->subsys->ana_group[anagrpid - 1] > 0) {
    2366          10 :                                 num_anagrp++;
    2367             :                         }
    2368             :                 }
    2369             : 
    2370           4 :                 memset(&ana_hdr, 0, sizeof(ana_hdr));
    2371             : 
    2372           4 :                 ana_hdr.num_ana_group_desc = num_anagrp;
    2373             :                 /* TODO: Support Change Count. */
    2374           4 :                 ana_hdr.change_count = 0;
    2375             : 
    2376           4 :                 copy_len = spdk_min(sizeof(ana_hdr) - offset, length);
    2377           4 :                 copied_len = spdk_iov_xfer_from_buf(&ix, (const char *)&ana_hdr + offset, copy_len);
    2378           4 :                 assert(copied_len == copy_len);
    2379           4 :                 length -= copied_len;
    2380           4 :                 offset = 0;
    2381             :         }
    2382             : 
    2383          17 :         if (length == 0) {
    2384           2 :                 goto done;
    2385             :         }
    2386             : 
    2387          37 :         for (anagrpid = 1; anagrpid <= ctrlr->subsys->max_nsid; anagrpid++) {
    2388          37 :                 if (ctrlr->subsys->ana_group[anagrpid - 1] == 0) {
    2389           7 :                         continue;
    2390             :                 }
    2391             : 
    2392          30 :                 if (offset >= sizeof(ana_desc)) {
    2393          12 :                         offset -= sizeof(ana_desc);
    2394             :                 } else {
    2395          18 :                         memset(&ana_desc, 0, sizeof(ana_desc));
    2396             : 
    2397          18 :                         ana_desc.ana_group_id = anagrpid;
    2398          18 :                         ana_desc.num_of_nsid = ctrlr->subsys->ana_group[anagrpid - 1];
    2399          18 :                         ana_desc.ana_state = nvmf_ctrlr_get_ana_state(ctrlr, anagrpid);
    2400             : 
    2401          18 :                         copy_len = spdk_min(sizeof(ana_desc) - offset, length);
    2402          18 :                         copied_len = spdk_iov_xfer_from_buf(&ix, (const char *)&ana_desc + offset,
    2403             :                                                             copy_len);
    2404          18 :                         assert(copied_len == copy_len);
    2405          18 :                         length -= copied_len;
    2406          18 :                         offset = 0;
    2407             : 
    2408          18 :                         if (length == 0) {
    2409          10 :                                 goto done;
    2410             :                         }
    2411             :                 }
    2412             : 
    2413             :                 /* TODO: Revisit here about O(n^2) cost if we have subsystem with
    2414             :                  * many namespaces in the future.
    2415             :                  */
    2416          86 :                 for (ns = spdk_nvmf_subsystem_get_first_ns(ctrlr->subsys); ns != NULL;
    2417          66 :                      ns = spdk_nvmf_subsystem_get_next_ns(ctrlr->subsys, ns)) {
    2418          71 :                         if (ns->anagrpid != anagrpid) {
    2419          39 :                                 continue;
    2420             :                         }
    2421             : 
    2422          32 :                         if (offset >= sizeof(uint32_t)) {
    2423          16 :                                 offset -= sizeof(uint32_t);
    2424          16 :                                 continue;
    2425             :                         }
    2426             : 
    2427          16 :                         copy_len = spdk_min(sizeof(uint32_t) - offset, length);
    2428          16 :                         copied_len = spdk_iov_xfer_from_buf(&ix, (const char *)&ns->nsid + offset,
    2429             :                                                             copy_len);
    2430          16 :                         assert(copied_len == copy_len);
    2431          16 :                         length -= copied_len;
    2432          16 :                         offset = 0;
    2433             : 
    2434          16 :                         if (length == 0) {
    2435           5 :                                 goto done;
    2436             :                         }
    2437             :                 }
    2438             :         }
    2439             : 
    2440          17 : done:
    2441          17 :         if (!rae) {
    2442          17 :                 nvmf_ctrlr_unmask_aen(ctrlr, SPDK_NVME_ASYNC_EVENT_ANA_CHANGE_MASK_BIT);
    2443             :         }
    2444          17 : }
    2445             : 
    2446             : void
    2447           0 : nvmf_ctrlr_ns_changed(struct spdk_nvmf_ctrlr *ctrlr, uint32_t nsid)
    2448             : {
    2449           0 :         uint16_t max_changes = SPDK_COUNTOF(ctrlr->changed_ns_list.ns_list);
    2450             :         uint16_t i;
    2451           0 :         bool found = false;
    2452             : 
    2453           0 :         for (i = 0; i < ctrlr->changed_ns_list_count; i++) {
    2454           0 :                 if (ctrlr->changed_ns_list.ns_list[i] == nsid) {
    2455             :                         /* nsid is already in the list */
    2456           0 :                         found = true;
    2457           0 :                         break;
    2458             :                 }
    2459             :         }
    2460             : 
    2461           0 :         if (!found) {
    2462           0 :                 if (ctrlr->changed_ns_list_count == max_changes) {
    2463             :                         /* Out of space - set first entry to FFFFFFFFh and zero-fill the rest. */
    2464           0 :                         ctrlr->changed_ns_list.ns_list[0] = 0xFFFFFFFFu;
    2465           0 :                         for (i = 1; i < max_changes; i++) {
    2466           0 :                                 ctrlr->changed_ns_list.ns_list[i] = 0;
    2467             :                         }
    2468             :                 } else {
    2469           0 :                         ctrlr->changed_ns_list.ns_list[ctrlr->changed_ns_list_count++] = nsid;
    2470             :                 }
    2471             :         }
    2472           0 : }
    2473             : 
    2474             : static void
    2475           2 : nvmf_get_changed_ns_list_log_page(struct spdk_nvmf_ctrlr *ctrlr,
    2476             :                                   struct iovec *iovs, int iovcnt, uint64_t offset, uint32_t length, uint32_t rae)
    2477             : {
    2478             :         size_t copy_length;
    2479           2 :         struct spdk_iov_xfer ix;
    2480             : 
    2481           2 :         spdk_iov_xfer_init(&ix, iovs, iovcnt);
    2482             : 
    2483           2 :         if (offset < sizeof(ctrlr->changed_ns_list)) {
    2484           2 :                 copy_length = spdk_min(length, sizeof(ctrlr->changed_ns_list) - offset);
    2485           2 :                 if (copy_length) {
    2486           2 :                         spdk_iov_xfer_from_buf(&ix, (char *)&ctrlr->changed_ns_list + offset, copy_length);
    2487             :                 }
    2488             :         }
    2489             : 
    2490             :         /* Clear log page each time it is read */
    2491           2 :         ctrlr->changed_ns_list_count = 0;
    2492           2 :         memset(&ctrlr->changed_ns_list, 0, sizeof(ctrlr->changed_ns_list));
    2493             : 
    2494           2 :         if (!rae) {
    2495           1 :                 nvmf_ctrlr_unmask_aen(ctrlr, SPDK_NVME_ASYNC_EVENT_NS_ATTR_CHANGE_MASK_BIT);
    2496             :         }
    2497           2 : }
    2498             : 
    2499             : /* The structure can be modified if we provide support for other commands in future */
    2500             : static const struct spdk_nvme_cmds_and_effect_log_page g_cmds_and_effect_log_page = {
    2501             :         .admin_cmds_supported = {
    2502             :                 /* CSUPP, LBCC, NCC, NIC, CCC, CSE */
    2503             :                 /* Get Log Page */
    2504             :                 [SPDK_NVME_OPC_GET_LOG_PAGE]            = {1, 0, 0, 0, 0, 0, 0, 0},
    2505             :                 /* Identify */
    2506             :                 [SPDK_NVME_OPC_IDENTIFY]                = {1, 0, 0, 0, 0, 0, 0, 0},
    2507             :                 /* Abort */
    2508             :                 [SPDK_NVME_OPC_ABORT]                   = {1, 0, 0, 0, 0, 0, 0, 0},
    2509             :                 /* Set Features */
    2510             :                 [SPDK_NVME_OPC_SET_FEATURES]            = {1, 0, 0, 0, 0, 0, 0, 0},
    2511             :                 /* Get Features */
    2512             :                 [SPDK_NVME_OPC_GET_FEATURES]            = {1, 0, 0, 0, 0, 0, 0, 0},
    2513             :                 /* Async Event Request */
    2514             :                 [SPDK_NVME_OPC_ASYNC_EVENT_REQUEST]     = {1, 0, 0, 0, 0, 0, 0, 0},
    2515             :                 /* Keep Alive */
    2516             :                 [SPDK_NVME_OPC_KEEP_ALIVE]              = {1, 0, 0, 0, 0, 0, 0, 0},
    2517             :         },
    2518             :         .io_cmds_supported = {
    2519             :                 /* FLUSH */
    2520             :                 [SPDK_NVME_OPC_FLUSH]                   = {1, 1, 0, 0, 0, 0, 0, 0},
    2521             :                 /* WRITE */
    2522             :                 [SPDK_NVME_OPC_WRITE]                   = {1, 1, 0, 0, 0, 0, 0, 0},
    2523             :                 /* READ */
    2524             :                 [SPDK_NVME_OPC_READ]                    = {1, 0, 0, 0, 0, 0, 0, 0},
    2525             :                 /* WRITE ZEROES */
    2526             :                 [SPDK_NVME_OPC_WRITE_ZEROES]            = {1, 1, 0, 0, 0, 0, 0, 0},
    2527             :                 /* DATASET MANAGEMENT */
    2528             :                 [SPDK_NVME_OPC_DATASET_MANAGEMENT]      = {1, 1, 0, 0, 0, 0, 0, 0},
    2529             :                 /* COMPARE */
    2530             :                 [SPDK_NVME_OPC_COMPARE]                 = {1, 0, 0, 0, 0, 0, 0, 0},
    2531             :                 /* ZONE MANAGEMENT SEND */
    2532             :                 [SPDK_NVME_OPC_ZONE_MGMT_SEND]          = {1, 1, 0, 0, 0, 0, 0, 0},
    2533             :                 /* ZONE MANAGEMENT RECEIVE */
    2534             :                 [SPDK_NVME_OPC_ZONE_MGMT_RECV]          = {1, 0, 0, 0, 0, 0, 0, 0},
    2535             :                 /* ZONE APPEND */
    2536             :                 [SPDK_NVME_OPC_ZONE_APPEND]             = {1, 1, 0, 0, 0, 0, 0, 0},
    2537             :                 /* COPY */
    2538             :                 [SPDK_NVME_OPC_COPY]                    = {1, 1, 0, 0, 0, 0, 0, 0},
    2539             :         },
    2540             : };
    2541             : 
    2542             : static void
    2543           0 : nvmf_get_cmds_and_effects_log_page(struct spdk_nvmf_ctrlr *ctrlr, struct iovec *iovs, int iovcnt,
    2544             :                                    uint64_t offset, uint32_t length)
    2545             : {
    2546           0 :         uint32_t page_size = sizeof(struct spdk_nvme_cmds_and_effect_log_page);
    2547           0 :         size_t copy_len = 0;
    2548           0 :         struct spdk_nvme_cmds_and_effect_log_page cmds_and_effect_log_page = g_cmds_and_effect_log_page;
    2549           0 :         struct spdk_nvme_cmds_and_effect_entry zero = {};
    2550           0 :         struct spdk_iov_xfer ix;
    2551             : 
    2552           0 :         if (!ctrlr->cdata.oncs.write_zeroes || !nvmf_ctrlr_write_zeroes_supported(ctrlr)) {
    2553           0 :                 cmds_and_effect_log_page.io_cmds_supported[SPDK_NVME_OPC_WRITE_ZEROES] = zero;
    2554             :         }
    2555           0 :         if (!ctrlr->cdata.oncs.dsm || !nvmf_ctrlr_dsm_supported(ctrlr)) {
    2556           0 :                 cmds_and_effect_log_page.io_cmds_supported[SPDK_NVME_OPC_DATASET_MANAGEMENT] = zero;
    2557             :         }
    2558           0 :         if (!ctrlr->cdata.oncs.compare) {
    2559           0 :                 cmds_and_effect_log_page.io_cmds_supported[SPDK_NVME_OPC_COMPARE] = zero;
    2560             :         }
    2561           0 :         if (!nvmf_subsystem_has_zns_iocs(ctrlr->subsys)) {
    2562           0 :                 cmds_and_effect_log_page.io_cmds_supported[SPDK_NVME_OPC_ZONE_MGMT_SEND] = zero;
    2563           0 :                 cmds_and_effect_log_page.io_cmds_supported[SPDK_NVME_OPC_ZONE_MGMT_RECV] = zero;
    2564             :         }
    2565           0 :         if (!nvmf_subsystem_zone_append_supported(ctrlr->subsys)) {
    2566           0 :                 cmds_and_effect_log_page.io_cmds_supported[SPDK_NVME_OPC_ZONE_APPEND] = zero;
    2567             :         }
    2568           0 :         if (!ctrlr->cdata.oncs.copy) {
    2569           0 :                 cmds_and_effect_log_page.io_cmds_supported[SPDK_NVME_OPC_COPY] = zero;
    2570             :         }
    2571             : 
    2572           0 :         spdk_iov_xfer_init(&ix, iovs, iovcnt);
    2573           0 :         if (offset < page_size) {
    2574           0 :                 copy_len = spdk_min(page_size - offset, length);
    2575           0 :                 spdk_iov_xfer_from_buf(&ix, (char *)(&cmds_and_effect_log_page) + offset, copy_len);
    2576             :         }
    2577           0 : }
    2578             : 
    2579             : static void
    2580           1 : nvmf_get_reservation_notification_log_page(struct spdk_nvmf_ctrlr *ctrlr,
    2581             :                 struct iovec *iovs, int iovcnt, uint64_t offset, uint32_t length, uint32_t rae)
    2582             : {
    2583             :         uint32_t unit_log_len, avail_log_len, next_pos, copy_len;
    2584             :         struct spdk_nvmf_reservation_log *log, *log_tmp;
    2585           1 :         struct spdk_iov_xfer ix;
    2586             : 
    2587           1 :         spdk_iov_xfer_init(&ix, iovs, iovcnt);
    2588             : 
    2589           1 :         unit_log_len = sizeof(struct spdk_nvme_reservation_notification_log);
    2590             :         /* No available log, return zeroed log pages */
    2591           1 :         if (!ctrlr->num_avail_log_pages) {
    2592           0 :                 return;
    2593             :         }
    2594             : 
    2595           1 :         avail_log_len = ctrlr->num_avail_log_pages * unit_log_len;
    2596           1 :         if (offset >= avail_log_len) {
    2597           0 :                 return;
    2598             :         }
    2599             : 
    2600           1 :         next_pos = 0;
    2601           3 :         TAILQ_FOREACH_SAFE(log, &ctrlr->log_head, link, log_tmp) {
    2602           3 :                 TAILQ_REMOVE(&ctrlr->log_head, log, link);
    2603           3 :                 ctrlr->num_avail_log_pages--;
    2604             : 
    2605           3 :                 next_pos += unit_log_len;
    2606           3 :                 if (next_pos > offset) {
    2607           3 :                         copy_len = spdk_min(next_pos - offset, length);
    2608           3 :                         spdk_iov_xfer_from_buf(&ix, &log->log, copy_len);
    2609           3 :                         length -= copy_len;
    2610           3 :                         offset += copy_len;
    2611             :                 }
    2612           3 :                 free(log);
    2613             : 
    2614           3 :                 if (length == 0) {
    2615           1 :                         break;
    2616             :                 }
    2617             :         }
    2618             : 
    2619           1 :         if (!rae) {
    2620           1 :                 nvmf_ctrlr_unmask_aen(ctrlr, SPDK_NVME_ASYNC_EVENT_RESERVATION_LOG_AVAIL_MASK_BIT);
    2621             :         }
    2622           1 :         return;
    2623             : }
    2624             : 
    2625             : static int
    2626           6 : nvmf_ctrlr_get_log_page(struct spdk_nvmf_request *req)
    2627             : {
    2628           6 :         struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
    2629           6 :         struct spdk_nvmf_subsystem *subsystem = ctrlr->subsys;
    2630           6 :         struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
    2631           6 :         struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl;
    2632           6 :         struct spdk_nvme_transport_id cmd_source_trid;
    2633             :         uint64_t offset, len;
    2634             :         uint32_t rae, numdl, numdu;
    2635             :         uint8_t lid;
    2636             : 
    2637           6 :         if (req->iovcnt < 1) {
    2638           1 :                 SPDK_DEBUGLOG(nvmf, "get log command with no buffer\n");
    2639           1 :                 response->status.sct = SPDK_NVME_SCT_GENERIC;
    2640           1 :                 response->status.sc = SPDK_NVME_SC_INVALID_FIELD;
    2641           1 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    2642             :         }
    2643             : 
    2644           5 :         offset = (uint64_t)cmd->cdw12 | ((uint64_t)cmd->cdw13 << 32);
    2645           5 :         if (offset & 3) {
    2646           1 :                 SPDK_ERRLOG("Invalid log page offset 0x%" PRIx64 "\n", offset);
    2647           1 :                 response->status.sct = SPDK_NVME_SCT_GENERIC;
    2648           1 :                 response->status.sc = SPDK_NVME_SC_INVALID_FIELD;
    2649           1 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    2650             :         }
    2651             : 
    2652           4 :         rae = cmd->cdw10_bits.get_log_page.rae;
    2653           4 :         numdl = cmd->cdw10_bits.get_log_page.numdl;
    2654           4 :         numdu = cmd->cdw11_bits.get_log_page.numdu;
    2655           4 :         len = ((numdu << 16) + numdl + (uint64_t)1) * 4;
    2656           4 :         if (len > req->length) {
    2657           0 :                 SPDK_ERRLOG("Get log page: len (%" PRIu64 ") > buf size (%u)\n",
    2658             :                             len, req->length);
    2659           0 :                 response->status.sct = SPDK_NVME_SCT_GENERIC;
    2660           0 :                 response->status.sc = SPDK_NVME_SC_INVALID_FIELD;
    2661           0 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    2662             :         }
    2663             : 
    2664           4 :         lid = cmd->cdw10_bits.get_log_page.lid;
    2665           4 :         SPDK_DEBUGLOG(nvmf, "Get log page: LID=0x%02X offset=0x%" PRIx64 " len=0x%" PRIx64 " rae=%u\n",
    2666             :                       lid, offset, len, rae);
    2667             : 
    2668           4 :         if (spdk_nvmf_subsystem_is_discovery(subsystem)) {
    2669           0 :                 switch (lid) {
    2670           0 :                 case SPDK_NVME_LOG_DISCOVERY:
    2671           0 :                         if (spdk_nvmf_qpair_get_listen_trid(req->qpair, &cmd_source_trid)) {
    2672           0 :                                 SPDK_ERRLOG("Failed to get LOG_DISCOVERY source trid\n");
    2673           0 :                                 response->status.sct = SPDK_NVME_SCT_GENERIC;
    2674           0 :                                 response->status.sc = SPDK_NVME_SC_INTERNAL_DEVICE_ERROR;
    2675           0 :                                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    2676             :                         }
    2677           0 :                         nvmf_get_discovery_log_page(subsystem->tgt, ctrlr->hostnqn, req->iov, req->iovcnt,
    2678             :                                                     offset, len, &cmd_source_trid);
    2679           0 :                         if (!rae) {
    2680           0 :                                 nvmf_ctrlr_unmask_aen(ctrlr, SPDK_NVME_ASYNC_EVENT_DISCOVERY_LOG_CHANGE_MASK_BIT);
    2681             :                         }
    2682           0 :                         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    2683           0 :                 default:
    2684           0 :                         goto invalid_log_page;
    2685             :                 }
    2686             :         } else {
    2687           4 :                 if (offset > len) {
    2688           0 :                         SPDK_ERRLOG("Get log page: offset (%" PRIu64 ") > len (%" PRIu64 ")\n",
    2689             :                                     offset, len);
    2690           0 :                         response->status.sct = SPDK_NVME_SCT_GENERIC;
    2691           0 :                         response->status.sc = SPDK_NVME_SC_INVALID_FIELD;
    2692           0 :                         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    2693             :                 }
    2694             : 
    2695           4 :                 switch (lid) {
    2696           1 :                 case SPDK_NVME_LOG_ERROR:
    2697           1 :                         nvmf_get_error_log_page(ctrlr, req->iov, req->iovcnt, offset, len, rae);
    2698           1 :                         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    2699           0 :                 case SPDK_NVME_LOG_HEALTH_INFORMATION:
    2700             :                         /* TODO: actually fill out log page data */
    2701           0 :                         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    2702           0 :                 case SPDK_NVME_LOG_FIRMWARE_SLOT:
    2703           0 :                         nvmf_get_firmware_slot_log_page(req->iov, req->iovcnt, offset, len);
    2704           0 :                         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    2705           0 :                 case SPDK_NVME_LOG_ASYMMETRIC_NAMESPACE_ACCESS:
    2706           0 :                         if (subsystem->flags.ana_reporting) {
    2707           0 :                                 nvmf_get_ana_log_page(ctrlr, req->iov, req->iovcnt, offset, len, rae);
    2708           0 :                                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    2709             :                         } else {
    2710           0 :                                 goto invalid_log_page;
    2711             :                         }
    2712           0 :                 case SPDK_NVME_LOG_COMMAND_EFFECTS_LOG:
    2713           0 :                         nvmf_get_cmds_and_effects_log_page(ctrlr, req->iov, req->iovcnt, offset, len);
    2714           0 :                         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    2715           2 :                 case SPDK_NVME_LOG_CHANGED_NS_LIST:
    2716           2 :                         nvmf_get_changed_ns_list_log_page(ctrlr, req->iov, req->iovcnt, offset, len, rae);
    2717           2 :                         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    2718           0 :                 case SPDK_NVME_LOG_RESERVATION_NOTIFICATION:
    2719           0 :                         nvmf_get_reservation_notification_log_page(ctrlr, req->iov, req->iovcnt, offset, len, rae);
    2720           0 :                         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    2721           1 :                 default:
    2722           1 :                         goto invalid_log_page;
    2723             :                 }
    2724             :         }
    2725             : 
    2726           1 : invalid_log_page:
    2727           1 :         SPDK_INFOLOG(nvmf, "Unsupported Get Log Page 0x%02X\n", lid);
    2728           1 :         response->status.sct = SPDK_NVME_SCT_GENERIC;
    2729           1 :         response->status.sc = SPDK_NVME_SC_INVALID_FIELD;
    2730           1 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    2731             : }
    2732             : 
    2733             : static struct spdk_nvmf_ns *
    2734          11 : _nvmf_ctrlr_get_ns_safe(struct spdk_nvmf_ctrlr *ctrlr,
    2735             :                         uint32_t nsid,
    2736             :                         struct spdk_nvme_cpl *rsp)
    2737             : {
    2738             :         struct spdk_nvmf_ns *ns;
    2739          11 :         if (nsid == 0 || nsid > ctrlr->subsys->max_nsid) {
    2740           5 :                 SPDK_ERRLOG("Identify Namespace for invalid NSID %u\n", nsid);
    2741           5 :                 rsp->status.sct = SPDK_NVME_SCT_GENERIC;
    2742           5 :                 rsp->status.sc = SPDK_NVME_SC_INVALID_NAMESPACE_OR_FORMAT;
    2743           5 :                 return NULL;
    2744             :         }
    2745             : 
    2746           6 :         ns = nvmf_ctrlr_get_ns(ctrlr, nsid);
    2747           6 :         if (ns == NULL || ns->bdev == NULL) {
    2748             :                 /*
    2749             :                  * Inactive namespaces should return a zero filled data structure.
    2750             :                  * The data buffer is already zeroed by nvmf_ctrlr_process_admin_cmd(),
    2751             :                  * so we can just return early here.
    2752             :                  */
    2753           2 :                 SPDK_DEBUGLOG(nvmf, "Identify Namespace for inactive NSID %u\n", nsid);
    2754           2 :                 rsp->status.sct = SPDK_NVME_SCT_GENERIC;
    2755           2 :                 rsp->status.sc = SPDK_NVME_SC_SUCCESS;
    2756           2 :                 return NULL;
    2757             :         }
    2758           4 :         return ns;
    2759             : }
    2760             : 
    2761             : int
    2762           7 : spdk_nvmf_ctrlr_identify_ns(struct spdk_nvmf_ctrlr *ctrlr,
    2763             :                             struct spdk_nvme_cmd *cmd,
    2764             :                             struct spdk_nvme_cpl *rsp,
    2765             :                             struct spdk_nvme_ns_data *nsdata)
    2766             : {
    2767           7 :         struct spdk_nvmf_subsystem *subsystem = ctrlr->subsys;
    2768             :         struct spdk_nvmf_ns *ns;
    2769             :         uint32_t max_num_blocks, format_index;
    2770             :         enum spdk_nvme_ana_state ana_state;
    2771             : 
    2772           7 :         ns = _nvmf_ctrlr_get_ns_safe(ctrlr, cmd->nsid, rsp);
    2773           7 :         if (ns == NULL) {
    2774           5 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    2775             :         }
    2776             : 
    2777           2 :         nvmf_bdev_ctrlr_identify_ns(ns, nsdata, ctrlr->dif_insert_or_strip);
    2778             : 
    2779           2 :         assert(ctrlr->admin_qpair);
    2780             : 
    2781           2 :         format_index = spdk_nvme_ns_get_format_index(nsdata);
    2782             : 
    2783             :         /* Due to bug in the Linux kernel NVMe driver we have to set noiob no larger than mdts */
    2784           2 :         max_num_blocks = ctrlr->admin_qpair->transport->opts.max_io_size /
    2785           2 :                          (1U << nsdata->lbaf[format_index].lbads);
    2786           2 :         if (nsdata->noiob > max_num_blocks) {
    2787           0 :                 nsdata->noiob = max_num_blocks;
    2788             :         }
    2789             : 
    2790             :         /* Set NOWS equal to Controller MDTS */
    2791           2 :         if (nsdata->nsfeat.optperf) {
    2792           0 :                 nsdata->nows = max_num_blocks - 1;
    2793             :         }
    2794             : 
    2795           2 :         if (subsystem->flags.ana_reporting) {
    2796           0 :                 assert(ns->anagrpid - 1 < subsystem->max_nsid);
    2797           0 :                 nsdata->anagrpid = ns->anagrpid;
    2798             : 
    2799           0 :                 ana_state = nvmf_ctrlr_get_ana_state(ctrlr, ns->anagrpid);
    2800           0 :                 if (ana_state == SPDK_NVME_ANA_INACCESSIBLE_STATE ||
    2801             :                     ana_state == SPDK_NVME_ANA_PERSISTENT_LOSS_STATE) {
    2802           0 :                         nsdata->nuse = 0;
    2803             :                 }
    2804             :         }
    2805             : 
    2806           2 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    2807             : }
    2808             : 
    2809             : static void
    2810           3 : nvmf_ctrlr_populate_oacs(struct spdk_nvmf_ctrlr *ctrlr,
    2811             :                          struct spdk_nvme_ctrlr_data *cdata)
    2812             : {
    2813           3 :         cdata->oacs = ctrlr->cdata.oacs;
    2814             : 
    2815           3 :         cdata->oacs.virtualization_management =
    2816           3 :                 g_nvmf_custom_admin_cmd_hdlrs[SPDK_NVME_OPC_VIRTUALIZATION_MANAGEMENT].hdlr != NULL;
    2817           6 :         cdata->oacs.nvme_mi = g_nvmf_custom_admin_cmd_hdlrs[SPDK_NVME_OPC_NVME_MI_SEND].hdlr != NULL
    2818           3 :                               && g_nvmf_custom_admin_cmd_hdlrs[SPDK_NVME_OPC_NVME_MI_RECEIVE].hdlr != NULL;
    2819           6 :         cdata->oacs.directives = g_nvmf_custom_admin_cmd_hdlrs[SPDK_NVME_OPC_DIRECTIVE_SEND].hdlr != NULL
    2820           3 :                                  && g_nvmf_custom_admin_cmd_hdlrs[SPDK_NVME_OPC_DIRECTIVE_RECEIVE].hdlr != NULL;
    2821           3 :         cdata->oacs.device_self_test =
    2822           3 :                 g_nvmf_custom_admin_cmd_hdlrs[SPDK_NVME_OPC_DEVICE_SELF_TEST].hdlr != NULL;
    2823           6 :         cdata->oacs.ns_manage = g_nvmf_custom_admin_cmd_hdlrs[SPDK_NVME_OPC_NS_MANAGEMENT].hdlr != NULL
    2824           3 :                                 && g_nvmf_custom_admin_cmd_hdlrs[SPDK_NVME_OPC_NS_ATTACHMENT].hdlr != NULL;
    2825           6 :         cdata->oacs.firmware = g_nvmf_custom_admin_cmd_hdlrs[SPDK_NVME_OPC_FIRMWARE_IMAGE_DOWNLOAD].hdlr !=
    2826             :                                NULL
    2827           3 :                                && g_nvmf_custom_admin_cmd_hdlrs[SPDK_NVME_OPC_FIRMWARE_COMMIT].hdlr != NULL;
    2828           3 :         cdata->oacs.format =
    2829           3 :                 g_nvmf_custom_admin_cmd_hdlrs[SPDK_NVME_OPC_FORMAT_NVM].hdlr != NULL;
    2830           6 :         cdata->oacs.security = g_nvmf_custom_admin_cmd_hdlrs[SPDK_NVME_OPC_SECURITY_SEND].hdlr != NULL
    2831           3 :                                && g_nvmf_custom_admin_cmd_hdlrs[SPDK_NVME_OPC_SECURITY_RECEIVE].hdlr != NULL;
    2832           3 :         cdata->oacs.get_lba_status = g_nvmf_custom_admin_cmd_hdlrs[SPDK_NVME_OPC_GET_LBA_STATUS].hdlr !=
    2833             :                                      NULL;
    2834           3 : }
    2835             : 
    2836             : int
    2837           3 : spdk_nvmf_ctrlr_identify_ctrlr(struct spdk_nvmf_ctrlr *ctrlr, struct spdk_nvme_ctrlr_data *cdata)
    2838             : {
    2839           3 :         struct spdk_nvmf_subsystem *subsystem = ctrlr->subsys;
    2840             :         struct spdk_nvmf_transport *transport;
    2841             : 
    2842             :         /*
    2843             :          * Common fields for discovery and NVM subsystems
    2844             :          */
    2845           3 :         assert(ctrlr->admin_qpair);
    2846           3 :         transport = ctrlr->admin_qpair->transport;
    2847           3 :         spdk_strcpy_pad(cdata->fr, FW_VERSION, sizeof(cdata->fr), ' ');
    2848           3 :         assert((transport->opts.max_io_size % 4096) == 0);
    2849           3 :         cdata->mdts = spdk_u32log2(transport->opts.max_io_size / 4096);
    2850           3 :         cdata->cntlid = ctrlr->cntlid;
    2851           3 :         cdata->ver = ctrlr->vcprop.vs;
    2852           3 :         cdata->aerl = ctrlr->cdata.aerl;
    2853           3 :         cdata->lpa.edlp = 1;
    2854           3 :         cdata->elpe = 127;
    2855           3 :         cdata->maxcmd = transport->opts.max_queue_depth;
    2856           3 :         cdata->sgls = ctrlr->cdata.sgls;
    2857           3 :         cdata->fuses = ctrlr->cdata.fuses;
    2858           3 :         cdata->acwu = 0; /* ACWU is 0-based. */
    2859           3 :         if (subsystem->flags.ana_reporting) {
    2860           0 :                 cdata->mnan = subsystem->max_nsid;
    2861             :         }
    2862           3 :         spdk_strcpy_pad(cdata->subnqn, subsystem->subnqn, sizeof(cdata->subnqn), '\0');
    2863             : 
    2864           3 :         SPDK_DEBUGLOG(nvmf, "ctrlr data: maxcmd 0x%x\n", cdata->maxcmd);
    2865           3 :         SPDK_DEBUGLOG(nvmf, "sgls data: 0x%x\n", from_le32(&cdata->sgls));
    2866             : 
    2867             : 
    2868           3 :         if (spdk_nvmf_subsystem_is_discovery(subsystem)) {
    2869             :                 /*
    2870             :                  * NVM Discovery subsystem fields
    2871             :                  */
    2872           0 :                 cdata->oaes.discovery_log_change_notices = 1;
    2873           0 :                 cdata->cntrltype = SPDK_NVME_CTRLR_DISCOVERY;
    2874             :         } else {
    2875           3 :                 cdata->vid = ctrlr->cdata.vid;
    2876           3 :                 cdata->ssvid = ctrlr->cdata.ssvid;
    2877           3 :                 cdata->ieee[0] = ctrlr->cdata.ieee[0];
    2878           3 :                 cdata->ieee[1] = ctrlr->cdata.ieee[1];
    2879           3 :                 cdata->ieee[2] = ctrlr->cdata.ieee[2];
    2880             : 
    2881             :                 /*
    2882             :                  * NVM subsystem fields (reserved for discovery subsystems)
    2883             :                  */
    2884           3 :                 spdk_strcpy_pad(cdata->mn, spdk_nvmf_subsystem_get_mn(subsystem), sizeof(cdata->mn), ' ');
    2885           3 :                 spdk_strcpy_pad(cdata->sn, spdk_nvmf_subsystem_get_sn(subsystem), sizeof(cdata->sn), ' ');
    2886           3 :                 cdata->kas = ctrlr->cdata.kas;
    2887             : 
    2888           3 :                 cdata->rab = 6;
    2889           3 :                 cdata->cmic.multi_port = 1;
    2890           3 :                 cdata->cmic.multi_ctrlr = 1;
    2891           3 :                 cdata->oaes.ns_attribute_notices = 1;
    2892           3 :                 cdata->ctratt.bits.host_id_exhid_supported = 1;
    2893           3 :                 cdata->ctratt.bits.fdps = ctrlr->subsys->fdp_supported;
    2894           3 :                 cdata->cntrltype = SPDK_NVME_CTRLR_IO;
    2895             :                 /* We do not have any actual limitation to the number of abort commands.
    2896             :                  * We follow the recommendation by the NVMe specification.
    2897             :                  */
    2898           3 :                 cdata->acl = NVMF_ABORT_COMMAND_LIMIT;
    2899           3 :                 cdata->frmw.slot1_ro = 1;
    2900           3 :                 cdata->frmw.num_slots = 1;
    2901             : 
    2902           3 :                 cdata->lpa.celp = 1; /* Command Effects log page supported */
    2903             : 
    2904           3 :                 cdata->sqes.min = 6;
    2905           3 :                 cdata->sqes.max = 6;
    2906           3 :                 cdata->cqes.min = 4;
    2907           3 :                 cdata->cqes.max = 4;
    2908           3 :                 cdata->nn = subsystem->max_nsid;
    2909           3 :                 cdata->vwc.present = 1;
    2910           3 :                 cdata->vwc.flush_broadcast = SPDK_NVME_FLUSH_BROADCAST_NOT_SUPPORTED;
    2911             : 
    2912           3 :                 cdata->nvmf_specific = ctrlr->cdata.nvmf_specific;
    2913             : 
    2914           3 :                 cdata->oncs.compare = ctrlr->cdata.oncs.compare;
    2915           3 :                 cdata->oncs.dsm = ctrlr->cdata.oncs.dsm && nvmf_ctrlr_dsm_supported(ctrlr);
    2916           6 :                 cdata->oncs.write_zeroes = ctrlr->cdata.oncs.write_zeroes &&
    2917           3 :                                            nvmf_ctrlr_write_zeroes_supported(ctrlr);
    2918           3 :                 cdata->oncs.reservations = ctrlr->cdata.oncs.reservations;
    2919           3 :                 cdata->oncs.copy = ctrlr->cdata.oncs.copy;
    2920           3 :                 cdata->ocfs.copy_format0 = cdata->oncs.copy;
    2921           3 :                 if (subsystem->flags.ana_reporting) {
    2922             :                         /* Asymmetric Namespace Access Reporting is supported. */
    2923           0 :                         cdata->cmic.ana_reporting = 1;
    2924           0 :                         cdata->oaes.ana_change_notices = 1;
    2925             : 
    2926           0 :                         cdata->anatt = ANA_TRANSITION_TIME_IN_SEC;
    2927             :                         /* ANA Change state is not used, and ANA Persistent Loss state
    2928             :                          * is not supported for now.
    2929             :                          */
    2930           0 :                         cdata->anacap.ana_optimized_state = 1;
    2931           0 :                         cdata->anacap.ana_non_optimized_state = 1;
    2932           0 :                         cdata->anacap.ana_inaccessible_state = 1;
    2933             :                         /* ANAGRPID does not change while namespace is attached to controller */
    2934           0 :                         cdata->anacap.no_change_anagrpid = 1;
    2935           0 :                         cdata->anagrpmax = subsystem->max_nsid;
    2936           0 :                         cdata->nanagrpid = subsystem->max_nsid;
    2937             :                 }
    2938             : 
    2939           3 :                 nvmf_ctrlr_populate_oacs(ctrlr, cdata);
    2940             : 
    2941           3 :                 assert(subsystem->tgt != NULL);
    2942           3 :                 cdata->crdt[0] = subsystem->tgt->crdt[0];
    2943           3 :                 cdata->crdt[1] = subsystem->tgt->crdt[1];
    2944           3 :                 cdata->crdt[2] = subsystem->tgt->crdt[2];
    2945             : 
    2946           3 :                 SPDK_DEBUGLOG(nvmf, "ext ctrlr data: ioccsz 0x%x\n",
    2947             :                               cdata->nvmf_specific.ioccsz);
    2948           3 :                 SPDK_DEBUGLOG(nvmf, "ext ctrlr data: iorcsz 0x%x\n",
    2949             :                               cdata->nvmf_specific.iorcsz);
    2950           3 :                 SPDK_DEBUGLOG(nvmf, "ext ctrlr data: icdoff 0x%x\n",
    2951             :                               cdata->nvmf_specific.icdoff);
    2952           3 :                 SPDK_DEBUGLOG(nvmf, "ext ctrlr data: ctrattr 0x%x\n",
    2953             :                               *(uint8_t *)&cdata->nvmf_specific.ctrattr);
    2954           3 :                 SPDK_DEBUGLOG(nvmf, "ext ctrlr data: msdbd 0x%x\n",
    2955             :                               cdata->nvmf_specific.msdbd);
    2956             :         }
    2957             : 
    2958           3 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    2959             : }
    2960             : 
    2961             : static int
    2962           1 : nvmf_ns_identify_iocs_zns(struct spdk_nvmf_ns *ns,
    2963             :                           struct spdk_nvme_cmd *cmd,
    2964             :                           struct spdk_nvme_cpl *rsp,
    2965             :                           struct spdk_nvme_zns_ns_data *nsdata_zns)
    2966             : {
    2967           1 :         nsdata_zns->zoc.variable_zone_capacity = 0;
    2968           1 :         nsdata_zns->zoc.zone_active_excursions = 0;
    2969           1 :         nsdata_zns->ozcs.read_across_zone_boundaries = 1;
    2970             :         /* Underflowing the zero based mar and mor bdev helper results in the correct
    2971             :            value of FFFFFFFFh. */
    2972           1 :         nsdata_zns->mar = spdk_bdev_get_max_active_zones(ns->bdev) - 1;
    2973           1 :         nsdata_zns->mor = spdk_bdev_get_max_open_zones(ns->bdev) - 1;
    2974           1 :         nsdata_zns->rrl = 0;
    2975           1 :         nsdata_zns->frl = 0;
    2976           1 :         nsdata_zns->lbafe[0].zsze = spdk_bdev_get_zone_size(ns->bdev);
    2977             : 
    2978           1 :         rsp->status.sct = SPDK_NVME_SCT_GENERIC;
    2979           1 :         rsp->status.sc = SPDK_NVME_SC_SUCCESS;
    2980           1 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    2981             : }
    2982             : 
    2983             : int
    2984           4 : spdk_nvmf_ns_identify_iocs_specific(struct spdk_nvmf_ctrlr *ctrlr,
    2985             :                                     struct spdk_nvme_cmd *cmd,
    2986             :                                     struct spdk_nvme_cpl *rsp,
    2987             :                                     void *nsdata,
    2988             :                                     size_t nsdata_size)
    2989             : {
    2990           4 :         uint8_t csi = cmd->cdw11_bits.identify.csi;
    2991           4 :         struct spdk_nvmf_ns *ns = _nvmf_ctrlr_get_ns_safe(ctrlr, cmd->nsid, rsp);
    2992             : 
    2993           4 :         memset(nsdata, 0, nsdata_size);
    2994             : 
    2995           4 :         if (ns == NULL) {
    2996           2 :                 rsp->status.sct = SPDK_NVME_SCT_GENERIC;
    2997           2 :                 rsp->status.sc = SPDK_NVME_SC_INVALID_NAMESPACE_OR_FORMAT;
    2998           2 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    2999             :         }
    3000             : 
    3001           2 :         switch (csi) {
    3002           1 :         case SPDK_NVME_CSI_ZNS:
    3003           1 :                 return nvmf_ns_identify_iocs_zns(ns, cmd, rsp, nsdata);
    3004           1 :         default:
    3005           1 :                 break;
    3006             :         }
    3007             : 
    3008           1 :         SPDK_DEBUGLOG(nvmf,
    3009             :                       "Returning zero filled struct for the iocs specific ns "
    3010             :                       "identify command and CSI 0x%02x\n",
    3011             :                       csi);
    3012           1 :         rsp->status.sct = SPDK_NVME_SCT_GENERIC;
    3013           1 :         rsp->status.sc = SPDK_NVME_SC_SUCCESS;
    3014           1 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    3015             : }
    3016             : 
    3017             : static int
    3018           1 : nvmf_ctrlr_identify_iocs_nvm(struct spdk_nvmf_ctrlr *ctrlr,
    3019             :                              struct spdk_nvme_cmd *cmd,
    3020             :                              struct spdk_nvme_cpl *rsp,
    3021             :                              struct spdk_nvme_nvm_ctrlr_data *cdata_nvm)
    3022             : {
    3023             :         /* The unit of max_write_zeroes_size_kib is KiB.
    3024             :          * The unit of wzsl is the minimum memory page size(2 ^ (12 + CAP.MPSMIN) bytes)
    3025             :          * and is reported as a power of two (2^n).
    3026             :          */
    3027           2 :         cdata_nvm->wzsl = spdk_u64log2(ctrlr->subsys->max_write_zeroes_size_kib >>
    3028           1 :                                        (2 + ctrlr->vcprop.cap.bits.mpsmin));
    3029             : 
    3030             :         /* The unit of max_discard_size_kib is KiB.
    3031             :          * The dmrsl indicates the maximum number of logical blocks for
    3032             :          * dataset management command.
    3033             :          */
    3034           1 :         cdata_nvm->dmrsl = ctrlr->subsys->max_discard_size_kib << 1;
    3035           1 :         cdata_nvm->dmrl = 1;
    3036             : 
    3037           1 :         rsp->status.sct = SPDK_NVME_SCT_GENERIC;
    3038           1 :         rsp->status.sc = SPDK_NVME_SC_SUCCESS;
    3039           1 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    3040             : }
    3041             : 
    3042             : static int
    3043           4 : nvmf_ctrlr_identify_iocs_zns(struct spdk_nvmf_ctrlr *ctrlr,
    3044             :                              struct spdk_nvme_cmd *cmd,
    3045             :                              struct spdk_nvme_cpl *rsp,
    3046             :                              struct spdk_nvme_zns_ctrlr_data *cdata_zns)
    3047             : {
    3048             :         /* The unit of max_zone_append_size_kib is KiB.
    3049             :         The unit of zasl is the minimum memory page size
    3050             :         (2 ^ (12 + CAP.MPSMIN) KiB)
    3051             :         and is reported as a power of two (2^n). */
    3052           8 :         cdata_zns->zasl = spdk_u64log2(ctrlr->subsys->max_zone_append_size_kib >>
    3053           4 :                                        (12 + ctrlr->vcprop.cap.bits.mpsmin));
    3054             : 
    3055           4 :         rsp->status.sct = SPDK_NVME_SCT_GENERIC;
    3056           4 :         rsp->status.sc = SPDK_NVME_SC_SUCCESS;
    3057           4 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    3058             : }
    3059             : 
    3060             : int
    3061           5 : spdk_nvmf_ctrlr_identify_iocs_specific(struct spdk_nvmf_ctrlr *ctrlr,
    3062             :                                        struct spdk_nvme_cmd *cmd,
    3063             :                                        struct spdk_nvme_cpl *rsp,
    3064             :                                        void *cdata,
    3065             :                                        size_t cdata_size)
    3066             : {
    3067           5 :         uint8_t csi = cmd->cdw11_bits.identify.csi;
    3068             : 
    3069           5 :         memset(cdata, 0, cdata_size);
    3070             : 
    3071           5 :         switch (csi) {
    3072           1 :         case SPDK_NVME_CSI_NVM:
    3073           1 :                 return nvmf_ctrlr_identify_iocs_nvm(ctrlr, cmd, rsp, cdata);
    3074           4 :         case SPDK_NVME_CSI_ZNS:
    3075           4 :                 return nvmf_ctrlr_identify_iocs_zns(ctrlr, cmd, rsp, cdata);
    3076           0 :         default:
    3077           0 :                 break;
    3078             :         }
    3079             : 
    3080           0 :         SPDK_DEBUGLOG(nvmf,
    3081             :                       "Returning zero filled struct for the iocs specific ctrlr "
    3082             :                       "identify command and CSI 0x%02x\n",
    3083             :                       csi);
    3084           0 :         rsp->status.sct = SPDK_NVME_SCT_GENERIC;
    3085           0 :         rsp->status.sc = SPDK_NVME_SC_SUCCESS;
    3086           0 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    3087             : }
    3088             : 
    3089             : static int
    3090           0 : nvmf_ctrlr_identify_active_ns_list(struct spdk_nvmf_ctrlr *ctrlr,
    3091             :                                    struct spdk_nvme_cmd *cmd,
    3092             :                                    struct spdk_nvme_cpl *rsp,
    3093             :                                    struct spdk_nvme_ns_list *ns_list)
    3094             : {
    3095           0 :         struct spdk_nvmf_subsystem *subsystem = ctrlr->subsys;
    3096             :         struct spdk_nvmf_ns *ns;
    3097           0 :         uint32_t count = 0;
    3098             : 
    3099           0 :         if (cmd->nsid >= 0xfffffffeUL) {
    3100           0 :                 SPDK_ERRLOG("Identify Active Namespace List with invalid NSID %u\n", cmd->nsid);
    3101           0 :                 rsp->status.sc = SPDK_NVME_SC_INVALID_NAMESPACE_OR_FORMAT;
    3102           0 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    3103             :         }
    3104             : 
    3105           0 :         memset(ns_list, 0, sizeof(*ns_list));
    3106             : 
    3107           0 :         for (ns = spdk_nvmf_subsystem_get_first_ns(subsystem); ns != NULL;
    3108           0 :              ns = spdk_nvmf_subsystem_get_next_ns(subsystem, ns)) {
    3109           0 :                 if (ns->opts.nsid <= cmd->nsid || !nvmf_ctrlr_ns_is_visible(ctrlr, ns->opts.nsid)) {
    3110           0 :                         continue;
    3111             :                 }
    3112             : 
    3113           0 :                 ns_list->ns_list[count++] = ns->opts.nsid;
    3114           0 :                 if (count == SPDK_COUNTOF(ns_list->ns_list)) {
    3115           0 :                         break;
    3116             :                 }
    3117             :         }
    3118             : 
    3119           0 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    3120             : }
    3121             : 
    3122             : static void
    3123           7 : _add_ns_id_desc(void **buf_ptr, size_t *buf_remain,
    3124             :                 enum spdk_nvme_nidt type,
    3125             :                 const void *data, size_t data_size)
    3126             : {
    3127             :         struct spdk_nvme_ns_id_desc *desc;
    3128           7 :         size_t desc_size = sizeof(*desc) + data_size;
    3129             : 
    3130             :         /*
    3131             :          * These should never fail in practice, since all valid NS ID descriptors
    3132             :          * should be defined so that they fit in the available 4096-byte buffer.
    3133             :          */
    3134           7 :         assert(data_size > 0);
    3135           7 :         assert(data_size <= UINT8_MAX);
    3136           7 :         assert(desc_size < *buf_remain);
    3137           7 :         if (data_size == 0 || data_size > UINT8_MAX || desc_size > *buf_remain) {
    3138           0 :                 return;
    3139             :         }
    3140             : 
    3141           7 :         desc = *buf_ptr;
    3142           7 :         desc->nidt = type;
    3143           7 :         desc->nidl = data_size;
    3144           7 :         memcpy(desc->nid, data, data_size);
    3145             : 
    3146           7 :         *buf_ptr += desc_size;
    3147           7 :         *buf_remain -= desc_size;
    3148             : }
    3149             : 
    3150             : static int
    3151           7 : nvmf_ctrlr_identify_ns_id_descriptor_list(
    3152             :         struct spdk_nvmf_ctrlr *ctrlr,
    3153             :         struct spdk_nvme_cmd *cmd,
    3154             :         struct spdk_nvme_cpl *rsp,
    3155             :         void *id_desc_list, size_t id_desc_list_size)
    3156             : {
    3157             :         struct spdk_nvmf_ns *ns;
    3158           7 :         size_t buf_remain = id_desc_list_size;
    3159           7 :         void *buf_ptr = id_desc_list;
    3160             : 
    3161           7 :         ns = nvmf_ctrlr_get_ns(ctrlr, cmd->nsid);
    3162           7 :         if (ns == NULL || ns->bdev == NULL) {
    3163           2 :                 rsp->status.sct = SPDK_NVME_SCT_GENERIC;
    3164           2 :                 rsp->status.sc = SPDK_NVME_SC_INVALID_NAMESPACE_OR_FORMAT;
    3165           2 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    3166             :         }
    3167             : 
    3168             : #define ADD_ID_DESC(type, data, size) \
    3169             :         do { \
    3170             :                 if (!spdk_mem_all_zero(data, size)) { \
    3171             :                         _add_ns_id_desc(&buf_ptr, &buf_remain, type, data, size); \
    3172             :                 } \
    3173             :         } while (0)
    3174             : 
    3175           5 :         ADD_ID_DESC(SPDK_NVME_NIDT_EUI64, ns->opts.eui64, sizeof(ns->opts.eui64));
    3176           5 :         ADD_ID_DESC(SPDK_NVME_NIDT_NGUID, ns->opts.nguid, sizeof(ns->opts.nguid));
    3177           5 :         ADD_ID_DESC(SPDK_NVME_NIDT_UUID, &ns->opts.uuid, sizeof(ns->opts.uuid));
    3178           5 :         ADD_ID_DESC(SPDK_NVME_NIDT_CSI, &ns->csi, sizeof(uint8_t));
    3179             : 
    3180             :         /*
    3181             :          * The list is automatically 0-terminated, both in the temporary buffer
    3182             :          * used by nvmf_ctrlr_identify(), and the eventual iov destination -
    3183             :          * controller to host buffers in admin commands always get zeroed in
    3184             :          * nvmf_ctrlr_process_admin_cmd().
    3185             :          */
    3186             : 
    3187             : #undef ADD_ID_DESC
    3188             : 
    3189           5 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    3190             : }
    3191             : 
    3192             : static int
    3193           0 : nvmf_ctrlr_identify_iocs(struct spdk_nvmf_ctrlr *ctrlr,
    3194             :                          struct spdk_nvme_cmd *cmd,
    3195             :                          struct spdk_nvme_cpl *rsp,
    3196             :                          void *cdata, size_t cdata_size)
    3197             : {
    3198             :         struct spdk_nvme_iocs_vector *vector;
    3199             :         struct spdk_nvmf_ns *ns;
    3200             : 
    3201           0 :         if (cdata_size < sizeof(struct spdk_nvme_iocs_vector)) {
    3202           0 :                 rsp->status.sct = SPDK_NVME_SCT_GENERIC;
    3203           0 :                 rsp->status.sc = SPDK_NVME_SC_INVALID_FIELD;
    3204           0 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    3205             :         }
    3206             : 
    3207             :         /* For now we only support this command sent to the current
    3208             :          * controller.
    3209             :          */
    3210           0 :         if (cmd->cdw10_bits.identify.cntid != 0xFFFF &&
    3211           0 :             cmd->cdw10_bits.identify.cntid != ctrlr->cntlid) {
    3212           0 :                 rsp->status.sct = SPDK_NVME_SCT_GENERIC;
    3213           0 :                 rsp->status.sc = SPDK_NVME_SC_INVALID_FIELD;
    3214           0 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    3215             :         }
    3216           0 :         memset(cdata, 0, cdata_size);
    3217             : 
    3218           0 :         vector = cdata;
    3219           0 :         vector->nvm = 1;
    3220           0 :         for (ns = spdk_nvmf_subsystem_get_first_ns(ctrlr->subsys); ns != NULL;
    3221           0 :              ns = spdk_nvmf_subsystem_get_next_ns(ctrlr->subsys, ns)) {
    3222           0 :                 if (ns->bdev == NULL) {
    3223           0 :                         continue;
    3224             :                 }
    3225           0 :                 if (spdk_bdev_is_zoned(ns->bdev)) {
    3226           0 :                         vector->zns = 1;
    3227             :                 }
    3228             :         }
    3229             : 
    3230           0 :         rsp->status.sct = SPDK_NVME_SCT_GENERIC;
    3231           0 :         rsp->status.sc = SPDK_NVME_SC_SUCCESS;
    3232           0 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    3233             : }
    3234             : 
    3235             : static int
    3236           7 : nvmf_ctrlr_identify(struct spdk_nvmf_request *req)
    3237             : {
    3238             :         uint8_t cns;
    3239           7 :         struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
    3240           7 :         struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
    3241           7 :         struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl;
    3242           7 :         struct spdk_nvmf_subsystem *subsystem = ctrlr->subsys;
    3243           7 :         int ret = SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    3244           7 :         char tmpbuf[SPDK_NVME_IDENTIFY_BUFLEN] = "";
    3245           7 :         struct spdk_iov_xfer ix;
    3246             : 
    3247           7 :         if (req->iovcnt < 1 || req->length < SPDK_NVME_IDENTIFY_BUFLEN) {
    3248           0 :                 SPDK_DEBUGLOG(nvmf, "identify command with invalid buffer\n");
    3249           0 :                 rsp->status.sct = SPDK_NVME_SCT_GENERIC;
    3250           0 :                 rsp->status.sc = SPDK_NVME_SC_INVALID_FIELD;
    3251           0 :                 return ret;
    3252             :         }
    3253             : 
    3254           7 :         cns = cmd->cdw10_bits.identify.cns;
    3255             : 
    3256           7 :         if (spdk_nvmf_subsystem_is_discovery(subsystem) &&
    3257             :             cns != SPDK_NVME_IDENTIFY_CTRLR) {
    3258             :                 /* Discovery controllers only support Identify Controller */
    3259           0 :                 goto invalid_cns;
    3260             :         }
    3261             : 
    3262             :         /*
    3263             :          * We must use a temporary buffer: it's entirely possible the out buffer
    3264             :          * is split across more than one IOV.
    3265             :          */
    3266           7 :         spdk_iov_xfer_init(&ix, req->iov, req->iovcnt);
    3267             : 
    3268           7 :         SPDK_DEBUGLOG(nvmf, "Received identify command with CNS 0x%02x\n", cns);
    3269             : 
    3270           7 :         switch (cns) {
    3271           0 :         case SPDK_NVME_IDENTIFY_NS:
    3272           0 :                 ret = spdk_nvmf_ctrlr_identify_ns(ctrlr, cmd, rsp, (void *)&tmpbuf);
    3273           0 :                 break;
    3274           0 :         case SPDK_NVME_IDENTIFY_CTRLR:
    3275           0 :                 ret = spdk_nvmf_ctrlr_identify_ctrlr(ctrlr, (void *)&tmpbuf);
    3276           0 :                 break;
    3277           0 :         case SPDK_NVME_IDENTIFY_ACTIVE_NS_LIST:
    3278           0 :                 ret = nvmf_ctrlr_identify_active_ns_list(ctrlr, cmd, rsp, (void *)&tmpbuf);
    3279           0 :                 break;
    3280           7 :         case SPDK_NVME_IDENTIFY_NS_ID_DESCRIPTOR_LIST:
    3281           7 :                 ret = nvmf_ctrlr_identify_ns_id_descriptor_list(ctrlr, cmd, rsp,
    3282           7 :                                 tmpbuf, req->length);
    3283           7 :                 break;
    3284           0 :         case SPDK_NVME_IDENTIFY_NS_IOCS:
    3285           0 :                 ret = spdk_nvmf_ns_identify_iocs_specific(ctrlr, cmd, rsp, (void *)&tmpbuf, req->length);
    3286           0 :                 break;
    3287           0 :         case SPDK_NVME_IDENTIFY_CTRLR_IOCS:
    3288           0 :                 ret = spdk_nvmf_ctrlr_identify_iocs_specific(ctrlr, cmd, rsp, (void *)&tmpbuf, req->length);
    3289           0 :                 break;
    3290           0 :         case SPDK_NVME_IDENTIFY_IOCS:
    3291           0 :                 ret = nvmf_ctrlr_identify_iocs(ctrlr, cmd, rsp, (void *)&tmpbuf, req->length);
    3292           0 :                 break;
    3293           0 :         default:
    3294           0 :                 goto invalid_cns;
    3295             :         }
    3296             : 
    3297           7 :         if (ret == SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE) {
    3298           7 :                 spdk_iov_xfer_from_buf(&ix, tmpbuf, sizeof(tmpbuf));
    3299             :         }
    3300             : 
    3301           7 :         return ret;
    3302             : 
    3303           0 : invalid_cns:
    3304           0 :         SPDK_DEBUGLOG(nvmf, "Identify command with unsupported CNS 0x%02x\n", cns);
    3305           0 :         rsp->status.sct = SPDK_NVME_SCT_GENERIC;
    3306           0 :         rsp->status.sc = SPDK_NVME_SC_INVALID_FIELD;
    3307           0 :         return ret;
    3308             : }
    3309             : 
    3310             : static bool
    3311           2 : nvmf_qpair_abort_aer(struct spdk_nvmf_qpair *qpair, uint16_t cid)
    3312             : {
    3313           2 :         struct spdk_nvmf_ctrlr *ctrlr = qpair->ctrlr;
    3314             :         struct spdk_nvmf_request *req;
    3315             :         int i;
    3316             : 
    3317           2 :         if (!nvmf_qpair_is_admin_queue(qpair)) {
    3318           0 :                 return false;
    3319             :         }
    3320             : 
    3321           2 :         assert(spdk_get_thread() == ctrlr->thread);
    3322             : 
    3323           6 :         for (i = 0; i < ctrlr->nr_aer_reqs; i++) {
    3324           6 :                 if (ctrlr->aer_req[i]->cmd->nvme_cmd.cid == cid) {
    3325           2 :                         SPDK_DEBUGLOG(nvmf, "Aborting AER request\n");
    3326           2 :                         req = ctrlr->aer_req[i];
    3327           2 :                         ctrlr->aer_req[i] = NULL;
    3328           2 :                         ctrlr->nr_aer_reqs--;
    3329             : 
    3330             :                         /* Move the last req to the aborting position for making aer_reqs
    3331             :                          * in continuous
    3332             :                          */
    3333           2 :                         if (i < ctrlr->nr_aer_reqs) {
    3334           1 :                                 ctrlr->aer_req[i] = ctrlr->aer_req[ctrlr->nr_aer_reqs];
    3335           1 :                                 ctrlr->aer_req[ctrlr->nr_aer_reqs] = NULL;
    3336             :                         }
    3337             : 
    3338           2 :                         req->rsp->nvme_cpl.status.sct = SPDK_NVME_SCT_GENERIC;
    3339           2 :                         req->rsp->nvme_cpl.status.sc = SPDK_NVME_SC_ABORTED_BY_REQUEST;
    3340           2 :                         _nvmf_request_complete(req);
    3341           2 :                         return true;
    3342             :                 }
    3343             :         }
    3344             : 
    3345           0 :         return false;
    3346             : }
    3347             : 
    3348             : void
    3349           0 : nvmf_qpair_abort_pending_zcopy_reqs(struct spdk_nvmf_qpair *qpair)
    3350             : {
    3351             :         struct spdk_nvmf_request *req, *tmp;
    3352             : 
    3353           0 :         TAILQ_FOREACH_SAFE(req, &qpair->outstanding, link, tmp) {
    3354           0 :                 if (req->zcopy_phase == NVMF_ZCOPY_PHASE_EXECUTE) {
    3355             :                         /* Zero-copy requests are kept on the outstanding queue from the moment
    3356             :                          * zcopy_start is sent until a zcopy_end callback is received.  Therefore,
    3357             :                          * we can't remove them from the outstanding queue here, but need to rely on
    3358             :                          * the transport to do a zcopy_end to release their buffers and, in turn,
    3359             :                          * remove them from the queue.
    3360             :                          */
    3361           0 :                         req->rsp->nvme_cpl.status.sct = SPDK_NVME_SCT_GENERIC;
    3362           0 :                         req->rsp->nvme_cpl.status.sc = SPDK_NVME_SC_ABORTED_BY_REQUEST;
    3363           0 :                         nvmf_transport_req_free(req);
    3364             :                 }
    3365             :         }
    3366           0 : }
    3367             : 
    3368             : static void
    3369           0 : nvmf_qpair_abort_request(struct spdk_nvmf_qpair *qpair, struct spdk_nvmf_request *req)
    3370             : {
    3371           0 :         uint16_t cid = req->cmd->nvme_cmd.cdw10_bits.abort.cid;
    3372             : 
    3373           0 :         if (nvmf_qpair_abort_aer(qpair, cid)) {
    3374           0 :                 SPDK_DEBUGLOG(nvmf, "abort ctrlr=%p sqid=%u cid=%u successful\n",
    3375             :                               qpair->ctrlr, qpair->qid, cid);
    3376           0 :                 req->rsp->nvme_cpl.cdw0 &= ~1U; /* Command successfully aborted */
    3377             : 
    3378           0 :                 spdk_nvmf_request_complete(req);
    3379           0 :                 return;
    3380             :         }
    3381             : 
    3382           0 :         nvmf_transport_qpair_abort_request(qpair, req);
    3383             : }
    3384             : 
    3385             : static void
    3386           0 : nvmf_ctrlr_abort_done(struct spdk_io_channel_iter *i, int status)
    3387             : {
    3388           0 :         struct spdk_nvmf_request *req = spdk_io_channel_iter_get_ctx(i);
    3389             : 
    3390           0 :         if (status == 0) {
    3391             :                 /* There was no qpair whose ID matches SQID of the abort command.
    3392             :                  * Hence call _nvmf_request_complete() here.
    3393             :                  */
    3394           0 :                 _nvmf_request_complete(req);
    3395             :         }
    3396           0 : }
    3397             : 
    3398             : static void
    3399           0 : nvmf_ctrlr_abort_on_pg(struct spdk_io_channel_iter *i)
    3400             : {
    3401           0 :         struct spdk_nvmf_request *req = spdk_io_channel_iter_get_ctx(i);
    3402           0 :         struct spdk_io_channel *ch = spdk_io_channel_iter_get_channel(i);
    3403           0 :         struct spdk_nvmf_poll_group *group = spdk_io_channel_get_ctx(ch);
    3404           0 :         uint16_t sqid = req->cmd->nvme_cmd.cdw10_bits.abort.sqid;
    3405             :         struct spdk_nvmf_qpair *qpair;
    3406             : 
    3407           0 :         TAILQ_FOREACH(qpair, &group->qpairs, link) {
    3408           0 :                 if (qpair->ctrlr == req->qpair->ctrlr && qpair->qid == sqid) {
    3409             :                         /* Found the qpair */
    3410             : 
    3411           0 :                         nvmf_qpair_abort_request(qpair, req);
    3412             : 
    3413             :                         /* Return -1 for the status so the iteration across threads stops. */
    3414           0 :                         spdk_for_each_channel_continue(i, -1);
    3415           0 :                         return;
    3416             :                 }
    3417             :         }
    3418             : 
    3419           0 :         spdk_for_each_channel_continue(i, 0);
    3420             : }
    3421             : 
    3422             : static int
    3423           0 : nvmf_ctrlr_abort(struct spdk_nvmf_request *req)
    3424             : {
    3425           0 :         struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl;
    3426             : 
    3427           0 :         rsp->cdw0 = 1U; /* Command not aborted */
    3428           0 :         rsp->status.sct = SPDK_NVME_SCT_GENERIC;
    3429           0 :         rsp->status.sc = SPDK_NVME_SC_SUCCESS;
    3430             : 
    3431             :         /* Send a message to each poll group, searching for this ctrlr, sqid, and command. */
    3432           0 :         spdk_for_each_channel(req->qpair->ctrlr->subsys->tgt,
    3433             :                               nvmf_ctrlr_abort_on_pg,
    3434             :                               req,
    3435             :                               nvmf_ctrlr_abort_done
    3436             :                              );
    3437             : 
    3438           0 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
    3439             : }
    3440             : 
    3441             : int
    3442           0 : nvmf_ctrlr_abort_request(struct spdk_nvmf_request *req)
    3443             : {
    3444           0 :         struct spdk_nvmf_request *req_to_abort = req->req_to_abort;
    3445           0 :         struct spdk_bdev *bdev;
    3446           0 :         struct spdk_bdev_desc *desc;
    3447           0 :         struct spdk_io_channel *ch;
    3448             :         int rc;
    3449             : 
    3450           0 :         assert(req_to_abort != NULL);
    3451             : 
    3452           0 :         if (g_nvmf_custom_admin_cmd_hdlrs[SPDK_NVME_OPC_ABORT].hdlr &&
    3453           0 :             nvmf_qpair_is_admin_queue(req_to_abort->qpair)) {
    3454           0 :                 return g_nvmf_custom_admin_cmd_hdlrs[SPDK_NVME_OPC_ABORT].hdlr(req);
    3455             :         }
    3456             : 
    3457           0 :         rc = spdk_nvmf_request_get_bdev(req_to_abort->cmd->nvme_cmd.nsid, req_to_abort,
    3458             :                                         &bdev, &desc, &ch);
    3459           0 :         if (rc != 0) {
    3460           0 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    3461             :         }
    3462             : 
    3463           0 :         return spdk_nvmf_bdev_ctrlr_abort_cmd(bdev, desc, ch, req, req_to_abort);
    3464             : }
    3465             : 
    3466             : static int
    3467           1 : get_features_generic(struct spdk_nvmf_request *req, uint32_t cdw0)
    3468             : {
    3469           1 :         struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl;
    3470             : 
    3471           1 :         rsp->cdw0 = cdw0;
    3472           1 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    3473             : }
    3474             : 
    3475             : /* we have to use the typedef in the function declaration to appease astyle. */
    3476             : typedef enum spdk_nvme_path_status_code spdk_nvme_path_status_code_t;
    3477             : 
    3478             : static spdk_nvme_path_status_code_t
    3479           0 : _nvme_ana_state_to_path_status(enum spdk_nvme_ana_state ana_state)
    3480             : {
    3481           0 :         switch (ana_state) {
    3482           0 :         case SPDK_NVME_ANA_INACCESSIBLE_STATE:
    3483           0 :                 return SPDK_NVME_SC_ASYMMETRIC_ACCESS_INACCESSIBLE;
    3484           0 :         case SPDK_NVME_ANA_PERSISTENT_LOSS_STATE:
    3485           0 :                 return SPDK_NVME_SC_ASYMMETRIC_ACCESS_PERSISTENT_LOSS;
    3486           0 :         case SPDK_NVME_ANA_CHANGE_STATE:
    3487           0 :                 return SPDK_NVME_SC_ASYMMETRIC_ACCESS_TRANSITION;
    3488           0 :         default:
    3489           0 :                 return SPDK_NVME_SC_INTERNAL_PATH_ERROR;
    3490             :         }
    3491             : }
    3492             : 
    3493             : static int
    3494           3 : nvmf_ctrlr_get_features(struct spdk_nvmf_request *req)
    3495             : {
    3496             :         uint8_t feature;
    3497           3 :         struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
    3498           3 :         struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
    3499           3 :         struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl;
    3500             :         enum spdk_nvme_ana_state ana_state;
    3501             : 
    3502           3 :         feature = cmd->cdw10_bits.get_features.fid;
    3503             : 
    3504           3 :         if (spdk_nvmf_subsystem_is_discovery(ctrlr->subsys)) {
    3505             :                 /*
    3506             :                  * Features supported by Discovery controller
    3507             :                  */
    3508           0 :                 switch (feature) {
    3509           0 :                 case SPDK_NVME_FEAT_KEEP_ALIVE_TIMER:
    3510           0 :                         return get_features_generic(req, ctrlr->feat.keep_alive_timer.raw);
    3511           0 :                 case SPDK_NVME_FEAT_ASYNC_EVENT_CONFIGURATION:
    3512           0 :                         return get_features_generic(req, ctrlr->feat.async_event_configuration.raw);
    3513           0 :                 default:
    3514           0 :                         SPDK_INFOLOG(nvmf, "Get Features command with unsupported feature ID 0x%02x\n", feature);
    3515           0 :                         response->status.sc = SPDK_NVME_SC_INVALID_FIELD;
    3516           0 :                         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    3517             :                 }
    3518             :         }
    3519             :         /*
    3520             :          * Process Get Features command for non-discovery controller
    3521             :          */
    3522           3 :         ana_state = nvmf_ctrlr_get_ana_state_from_nsid(ctrlr, cmd->nsid);
    3523           3 :         switch (ana_state) {
    3524           0 :         case SPDK_NVME_ANA_INACCESSIBLE_STATE:
    3525             :         case SPDK_NVME_ANA_PERSISTENT_LOSS_STATE:
    3526             :         case SPDK_NVME_ANA_CHANGE_STATE:
    3527           0 :                 switch (feature) {
    3528           0 :                 case SPDK_NVME_FEAT_ERROR_RECOVERY:
    3529             :                 case SPDK_NVME_FEAT_WRITE_ATOMICITY:
    3530             :                 case SPDK_NVME_FEAT_HOST_RESERVE_MASK:
    3531             :                 case SPDK_NVME_FEAT_HOST_RESERVE_PERSIST:
    3532           0 :                         response->status.sct = SPDK_NVME_SCT_PATH;
    3533           0 :                         response->status.sc = _nvme_ana_state_to_path_status(ana_state);
    3534           0 :                         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    3535           0 :                 default:
    3536           0 :                         break;
    3537             :                 }
    3538           0 :                 break;
    3539           3 :         default:
    3540           3 :                 break;
    3541             :         }
    3542             : 
    3543           3 :         switch (feature) {
    3544           0 :         case SPDK_NVME_FEAT_ARBITRATION:
    3545           0 :                 return get_features_generic(req, ctrlr->feat.arbitration.raw);
    3546           0 :         case SPDK_NVME_FEAT_POWER_MANAGEMENT:
    3547           0 :                 return get_features_generic(req, ctrlr->feat.power_management.raw);
    3548           2 :         case SPDK_NVME_FEAT_TEMPERATURE_THRESHOLD:
    3549           2 :                 return nvmf_ctrlr_get_features_temperature_threshold(req);
    3550           1 :         case SPDK_NVME_FEAT_ERROR_RECOVERY:
    3551           1 :                 return get_features_generic(req, ctrlr->feat.error_recovery.raw);
    3552           0 :         case SPDK_NVME_FEAT_VOLATILE_WRITE_CACHE:
    3553           0 :                 return get_features_generic(req, ctrlr->feat.volatile_write_cache.raw);
    3554           0 :         case SPDK_NVME_FEAT_NUMBER_OF_QUEUES:
    3555           0 :                 return get_features_generic(req, ctrlr->feat.number_of_queues.raw);
    3556           0 :         case SPDK_NVME_FEAT_INTERRUPT_COALESCING:
    3557           0 :                 return get_features_generic(req, ctrlr->feat.interrupt_coalescing.raw);
    3558           0 :         case SPDK_NVME_FEAT_INTERRUPT_VECTOR_CONFIGURATION:
    3559           0 :                 return nvmf_ctrlr_get_features_interrupt_vector_configuration(req);
    3560           0 :         case SPDK_NVME_FEAT_WRITE_ATOMICITY:
    3561           0 :                 return get_features_generic(req, ctrlr->feat.write_atomicity.raw);
    3562           0 :         case SPDK_NVME_FEAT_ASYNC_EVENT_CONFIGURATION:
    3563           0 :                 return get_features_generic(req, ctrlr->feat.async_event_configuration.raw);
    3564           0 :         case SPDK_NVME_FEAT_KEEP_ALIVE_TIMER:
    3565           0 :                 return get_features_generic(req, ctrlr->feat.keep_alive_timer.raw);
    3566           0 :         case SPDK_NVME_FEAT_HOST_IDENTIFIER:
    3567           0 :                 return nvmf_ctrlr_get_features_host_identifier(req);
    3568           0 :         case SPDK_NVME_FEAT_HOST_RESERVE_MASK:
    3569           0 :                 return nvmf_ctrlr_get_features_reservation_notification_mask(req);
    3570           0 :         case SPDK_NVME_FEAT_HOST_RESERVE_PERSIST:
    3571           0 :                 return nvmf_ctrlr_get_features_reservation_persistence(req);
    3572           0 :         case SPDK_NVME_FEAT_HOST_BEHAVIOR_SUPPORT:
    3573           0 :                 return nvmf_ctrlr_get_features_host_behavior_support(req);
    3574           0 :         default:
    3575           0 :                 SPDK_INFOLOG(nvmf, "Get Features command with unsupported feature ID 0x%02x\n", feature);
    3576           0 :                 response->status.sc = SPDK_NVME_SC_INVALID_FIELD;
    3577           0 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    3578             :         }
    3579             : }
    3580             : 
    3581             : static int
    3582           5 : nvmf_ctrlr_set_features(struct spdk_nvmf_request *req)
    3583             : {
    3584             :         uint8_t feature, save;
    3585           5 :         struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
    3586           5 :         struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
    3587           5 :         struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl;
    3588             :         enum spdk_nvme_ana_state ana_state;
    3589             :         /*
    3590             :          * Features are not saveable by the controller as indicated by
    3591             :          * ONCS field of the Identify Controller data.
    3592             :          * */
    3593           5 :         save = cmd->cdw10_bits.set_features.sv;
    3594           5 :         if (save) {
    3595           0 :                 response->status.sc = SPDK_NVME_SC_FEATURE_ID_NOT_SAVEABLE;
    3596           0 :                 response->status.sct = SPDK_NVME_SCT_COMMAND_SPECIFIC;
    3597           0 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    3598             :         }
    3599             : 
    3600           5 :         feature = cmd->cdw10_bits.set_features.fid;
    3601             : 
    3602           5 :         if (spdk_nvmf_subsystem_is_discovery(ctrlr->subsys)) {
    3603             :                 /*
    3604             :                  * Features supported by Discovery controller
    3605             :                  */
    3606           0 :                 switch (feature) {
    3607           0 :                 case SPDK_NVME_FEAT_KEEP_ALIVE_TIMER:
    3608           0 :                         return nvmf_ctrlr_set_features_keep_alive_timer(req);
    3609           0 :                 case SPDK_NVME_FEAT_ASYNC_EVENT_CONFIGURATION:
    3610           0 :                         return nvmf_ctrlr_set_features_async_event_configuration(req);
    3611           0 :                 default:
    3612           0 :                         SPDK_INFOLOG(nvmf, "Set Features command with unsupported feature ID 0x%02x\n", feature);
    3613           0 :                         response->status.sc = SPDK_NVME_SC_INVALID_FIELD;
    3614           0 :                         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    3615             :                 }
    3616             :         }
    3617             :         /*
    3618             :          * Process Set Features command for non-discovery controller
    3619             :          */
    3620           5 :         ana_state = nvmf_ctrlr_get_ana_state_from_nsid(ctrlr, cmd->nsid);
    3621           5 :         switch (ana_state) {
    3622           0 :         case SPDK_NVME_ANA_INACCESSIBLE_STATE:
    3623             :         case SPDK_NVME_ANA_CHANGE_STATE:
    3624           0 :                 if (cmd->nsid == SPDK_NVME_GLOBAL_NS_TAG) {
    3625           0 :                         response->status.sct = SPDK_NVME_SCT_PATH;
    3626           0 :                         response->status.sc = _nvme_ana_state_to_path_status(ana_state);
    3627           0 :                         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    3628             :                 } else {
    3629           0 :                         switch (feature) {
    3630           0 :                         case SPDK_NVME_FEAT_ERROR_RECOVERY:
    3631             :                         case SPDK_NVME_FEAT_WRITE_ATOMICITY:
    3632             :                         case SPDK_NVME_FEAT_HOST_RESERVE_MASK:
    3633             :                         case SPDK_NVME_FEAT_HOST_RESERVE_PERSIST:
    3634           0 :                                 response->status.sct = SPDK_NVME_SCT_PATH;
    3635           0 :                                 response->status.sc = _nvme_ana_state_to_path_status(ana_state);
    3636           0 :                                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    3637           0 :                         default:
    3638           0 :                                 break;
    3639             :                         }
    3640             :                 }
    3641           0 :                 break;
    3642           0 :         case SPDK_NVME_ANA_PERSISTENT_LOSS_STATE:
    3643           0 :                 response->status.sct = SPDK_NVME_SCT_PATH;
    3644           0 :                 response->status.sc = SPDK_NVME_SC_ASYMMETRIC_ACCESS_PERSISTENT_LOSS;
    3645           0 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    3646           5 :         default:
    3647           5 :                 break;
    3648             :         }
    3649             : 
    3650           5 :         switch (feature) {
    3651           0 :         case SPDK_NVME_FEAT_ARBITRATION:
    3652           0 :                 return nvmf_ctrlr_set_features_arbitration(req);
    3653           0 :         case SPDK_NVME_FEAT_POWER_MANAGEMENT:
    3654           0 :                 return nvmf_ctrlr_set_features_power_management(req);
    3655           3 :         case SPDK_NVME_FEAT_TEMPERATURE_THRESHOLD:
    3656           3 :                 return nvmf_ctrlr_set_features_temperature_threshold(req);
    3657           2 :         case SPDK_NVME_FEAT_ERROR_RECOVERY:
    3658           2 :                 return nvmf_ctrlr_set_features_error_recovery(req);
    3659           0 :         case SPDK_NVME_FEAT_VOLATILE_WRITE_CACHE:
    3660           0 :                 return nvmf_ctrlr_set_features_volatile_write_cache(req);
    3661           0 :         case SPDK_NVME_FEAT_NUMBER_OF_QUEUES:
    3662           0 :                 return nvmf_ctrlr_set_features_number_of_queues(req);
    3663           0 :         case SPDK_NVME_FEAT_INTERRUPT_COALESCING:
    3664           0 :                 response->status.sct = SPDK_NVME_SCT_COMMAND_SPECIFIC;
    3665           0 :                 response->status.sc = SPDK_NVME_SC_FEATURE_NOT_CHANGEABLE;
    3666           0 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    3667           0 :         case SPDK_NVME_FEAT_WRITE_ATOMICITY:
    3668           0 :                 return nvmf_ctrlr_set_features_write_atomicity(req);
    3669           0 :         case SPDK_NVME_FEAT_ASYNC_EVENT_CONFIGURATION:
    3670           0 :                 return nvmf_ctrlr_set_features_async_event_configuration(req);
    3671           0 :         case SPDK_NVME_FEAT_KEEP_ALIVE_TIMER:
    3672           0 :                 return nvmf_ctrlr_set_features_keep_alive_timer(req);
    3673           0 :         case SPDK_NVME_FEAT_HOST_IDENTIFIER:
    3674           0 :                 return nvmf_ctrlr_set_features_host_identifier(req);
    3675           0 :         case SPDK_NVME_FEAT_HOST_RESERVE_MASK:
    3676           0 :                 return nvmf_ctrlr_set_features_reservation_notification_mask(req);
    3677           0 :         case SPDK_NVME_FEAT_HOST_RESERVE_PERSIST:
    3678           0 :                 return nvmf_ctrlr_set_features_reservation_persistence(req);
    3679           0 :         case SPDK_NVME_FEAT_HOST_BEHAVIOR_SUPPORT:
    3680           0 :                 return nvmf_ctrlr_set_features_host_behavior_support(req);
    3681           0 :         default:
    3682           0 :                 SPDK_INFOLOG(nvmf, "Set Features command with unsupported feature ID 0x%02x\n", feature);
    3683           0 :                 response->status.sc = SPDK_NVME_SC_INVALID_FIELD;
    3684           0 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    3685             :         }
    3686             : }
    3687             : 
    3688             : static int
    3689           0 : nvmf_ctrlr_keep_alive(struct spdk_nvmf_request *req)
    3690             : {
    3691           0 :         struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
    3692             : 
    3693           0 :         SPDK_DEBUGLOG(nvmf, "Keep Alive\n");
    3694             :         /*
    3695             :          * To handle keep alive just clear or reset the
    3696             :          * ctrlr based keep alive duration counter.
    3697             :          * When added, a separate timer based process
    3698             :          * will monitor if the time since last recorded
    3699             :          * keep alive has exceeded the max duration and
    3700             :          * take appropriate action.
    3701             :          */
    3702           0 :         ctrlr->last_keep_alive_tick = spdk_get_ticks();
    3703             : 
    3704           0 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    3705             : }
    3706             : 
    3707             : int
    3708          18 : nvmf_ctrlr_process_admin_cmd(struct spdk_nvmf_request *req)
    3709             : {
    3710          18 :         struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
    3711          18 :         struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
    3712          18 :         struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl;
    3713             :         struct spdk_nvmf_subsystem_poll_group *sgroup;
    3714             :         int rc;
    3715             : 
    3716          18 :         assert(ctrlr != NULL);
    3717          18 :         if (cmd->opc == SPDK_NVME_OPC_ASYNC_EVENT_REQUEST) {
    3718             :                 /* We do not want to treat AERs as outstanding commands,
    3719             :                  * so decrement mgmt_io_outstanding here to offset
    3720             :                  * the increment that happened prior to this call.
    3721             :                  */
    3722          10 :                 sgroup = &req->qpair->group->sgroups[ctrlr->subsys->id];
    3723          10 :                 assert(sgroup != NULL);
    3724          10 :                 sgroup->mgmt_io_outstanding--;
    3725             :         }
    3726             : 
    3727          18 :         assert(spdk_get_thread() == ctrlr->thread);
    3728             : 
    3729          18 :         if (cmd->fuse != 0) {
    3730             :                 /* Fused admin commands are not supported. */
    3731           0 :                 response->status.sct = SPDK_NVME_SCT_GENERIC;
    3732           0 :                 response->status.sc = SPDK_NVME_SC_INVALID_FIELD;
    3733           0 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    3734             :         }
    3735             : 
    3736          18 :         if (ctrlr->vcprop.cc.bits.en != 1) {
    3737           0 :                 SPDK_ERRLOG("Admin command sent to disabled controller\n");
    3738           0 :                 response->status.sct = SPDK_NVME_SCT_GENERIC;
    3739           0 :                 response->status.sc = SPDK_NVME_SC_COMMAND_SEQUENCE_ERROR;
    3740           0 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    3741             :         }
    3742             : 
    3743          18 :         if (req->iovcnt && spdk_nvme_opc_get_data_transfer(cmd->opc) == SPDK_NVME_DATA_CONTROLLER_TO_HOST) {
    3744           7 :                 spdk_iov_memset(req->iov, req->iovcnt, 0);
    3745             :         }
    3746             : 
    3747          18 :         if (spdk_nvmf_subsystem_is_discovery(ctrlr->subsys)) {
    3748             :                 /* Discovery controllers only support these admin OPS. */
    3749           0 :                 switch (cmd->opc) {
    3750           0 :                 case SPDK_NVME_OPC_IDENTIFY:
    3751             :                 case SPDK_NVME_OPC_GET_LOG_PAGE:
    3752             :                 case SPDK_NVME_OPC_KEEP_ALIVE:
    3753             :                 case SPDK_NVME_OPC_SET_FEATURES:
    3754             :                 case SPDK_NVME_OPC_GET_FEATURES:
    3755             :                 case SPDK_NVME_OPC_ASYNC_EVENT_REQUEST:
    3756           0 :                         break;
    3757           0 :                 default:
    3758           0 :                         goto invalid_opcode;
    3759             :                 }
    3760             :         }
    3761             : 
    3762             :         /* Call a custom adm cmd handler if set. Aborts are handled in a different path (see nvmf_passthru_admin_cmd) */
    3763          18 :         if (g_nvmf_custom_admin_cmd_hdlrs[cmd->opc].hdlr && cmd->opc != SPDK_NVME_OPC_ABORT) {
    3764           1 :                 rc = g_nvmf_custom_admin_cmd_hdlrs[cmd->opc].hdlr(req);
    3765           1 :                 if (rc >= SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE) {
    3766             :                         /* The handler took care of this command */
    3767           1 :                         return rc;
    3768             :                 }
    3769             :         }
    3770             : 
    3771          17 :         switch (cmd->opc) {
    3772           0 :         case SPDK_NVME_OPC_GET_LOG_PAGE:
    3773           0 :                 return nvmf_ctrlr_get_log_page(req);
    3774           7 :         case SPDK_NVME_OPC_IDENTIFY:
    3775           7 :                 return nvmf_ctrlr_identify(req);
    3776           0 :         case SPDK_NVME_OPC_ABORT:
    3777           0 :                 return nvmf_ctrlr_abort(req);
    3778           0 :         case SPDK_NVME_OPC_GET_FEATURES:
    3779           0 :                 return nvmf_ctrlr_get_features(req);
    3780           0 :         case SPDK_NVME_OPC_SET_FEATURES:
    3781           0 :                 return nvmf_ctrlr_set_features(req);
    3782          10 :         case SPDK_NVME_OPC_ASYNC_EVENT_REQUEST:
    3783          10 :                 return nvmf_ctrlr_async_event_request(req);
    3784           0 :         case SPDK_NVME_OPC_KEEP_ALIVE:
    3785           0 :                 return nvmf_ctrlr_keep_alive(req);
    3786             : 
    3787           0 :         case SPDK_NVME_OPC_CREATE_IO_SQ:
    3788             :         case SPDK_NVME_OPC_CREATE_IO_CQ:
    3789             :         case SPDK_NVME_OPC_DELETE_IO_SQ:
    3790             :         case SPDK_NVME_OPC_DELETE_IO_CQ:
    3791             :                 /* Create and Delete I/O CQ/SQ not allowed in NVMe-oF */
    3792           0 :                 goto invalid_opcode;
    3793             : 
    3794           0 :         default:
    3795           0 :                 goto invalid_opcode;
    3796             :         }
    3797             : 
    3798           0 : invalid_opcode:
    3799           0 :         SPDK_INFOLOG(nvmf, "Unsupported admin opcode 0x%x\n", cmd->opc);
    3800           0 :         response->status.sct = SPDK_NVME_SCT_GENERIC;
    3801           0 :         response->status.sc = SPDK_NVME_SC_INVALID_OPCODE;
    3802           0 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    3803             : }
    3804             : 
    3805             : static int
    3806           0 : nvmf_ctrlr_process_fabrics_cmd(struct spdk_nvmf_request *req)
    3807             : {
    3808           0 :         struct spdk_nvmf_qpair *qpair = req->qpair;
    3809             :         struct spdk_nvmf_capsule_cmd *cap_hdr;
    3810             : 
    3811           0 :         cap_hdr = &req->cmd->nvmf_cmd;
    3812             : 
    3813           0 :         if (qpair->ctrlr == NULL) {
    3814             :                 /* No ctrlr established yet; the only valid command is Connect */
    3815           0 :                 assert(cap_hdr->fctype == SPDK_NVMF_FABRIC_COMMAND_CONNECT);
    3816           0 :                 return nvmf_ctrlr_cmd_connect(req);
    3817           0 :         } else if (nvmf_qpair_is_admin_queue(qpair)) {
    3818             :                 /*
    3819             :                  * Controller session is established, and this is an admin queue.
    3820             :                  * Disallow Connect and allow other fabrics commands.
    3821             :                  */
    3822           0 :                 switch (cap_hdr->fctype) {
    3823           0 :                 case SPDK_NVMF_FABRIC_COMMAND_PROPERTY_SET:
    3824           0 :                         return nvmf_property_set(req);
    3825           0 :                 case SPDK_NVMF_FABRIC_COMMAND_PROPERTY_GET:
    3826           0 :                         return nvmf_property_get(req);
    3827           0 :                 case SPDK_NVMF_FABRIC_COMMAND_AUTHENTICATION_SEND:
    3828             :                 case SPDK_NVMF_FABRIC_COMMAND_AUTHENTICATION_RECV:
    3829           0 :                         return nvmf_auth_request_exec(req);
    3830           0 :                 default:
    3831           0 :                         SPDK_DEBUGLOG(nvmf, "unknown fctype 0x%02x\n",
    3832             :                                       cap_hdr->fctype);
    3833           0 :                         req->rsp->nvme_cpl.status.sct = SPDK_NVME_SCT_GENERIC;
    3834           0 :                         req->rsp->nvme_cpl.status.sc = SPDK_NVME_SC_INVALID_OPCODE;
    3835           0 :                         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    3836             :                 }
    3837             :         } else {
    3838             :                 /*
    3839             :                  * Controller session is established, and this is an I/O queue.
    3840             :                  * Disallow everything besides authentication commands.
    3841             :                  */
    3842           0 :                 switch (cap_hdr->fctype) {
    3843           0 :                 case SPDK_NVMF_FABRIC_COMMAND_AUTHENTICATION_SEND:
    3844             :                 case SPDK_NVMF_FABRIC_COMMAND_AUTHENTICATION_RECV:
    3845           0 :                         return nvmf_auth_request_exec(req);
    3846           0 :                 default:
    3847           0 :                         SPDK_DEBUGLOG(nvmf, "Unexpected I/O fctype 0x%x\n", cap_hdr->fctype);
    3848           0 :                         req->rsp->nvme_cpl.status.sct = SPDK_NVME_SCT_GENERIC;
    3849           0 :                         req->rsp->nvme_cpl.status.sc = SPDK_NVME_SC_INVALID_OPCODE;
    3850           0 :                         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    3851             :                 }
    3852             :         }
    3853             : }
    3854             : 
    3855             : static inline void
    3856           5 : nvmf_ctrlr_queue_pending_async_event(struct spdk_nvmf_ctrlr *ctrlr,
    3857             :                                      union spdk_nvme_async_event_completion *event)
    3858             : {
    3859             :         struct spdk_nvmf_async_event_completion *nvmf_event;
    3860             : 
    3861           5 :         nvmf_event = calloc(1, sizeof(*nvmf_event));
    3862           5 :         if (!nvmf_event) {
    3863           0 :                 SPDK_ERRLOG("Alloc nvmf event failed, ignore the event\n");
    3864           0 :                 return;
    3865             :         }
    3866           5 :         nvmf_event->event.raw = event->raw;
    3867           5 :         STAILQ_INSERT_TAIL(&ctrlr->async_events, nvmf_event, link);
    3868             : }
    3869             : 
    3870             : static inline int
    3871           6 : nvmf_ctrlr_async_event_notification(struct spdk_nvmf_ctrlr *ctrlr,
    3872             :                                     union spdk_nvme_async_event_completion *event)
    3873             : {
    3874             :         struct spdk_nvmf_request *req;
    3875             :         struct spdk_nvme_cpl *rsp;
    3876             : 
    3877           6 :         assert(spdk_get_thread() == ctrlr->thread);
    3878             : 
    3879             :         /* If there is no outstanding AER request, queue the event.  Then
    3880             :          * if an AER is later submitted, this event can be sent as a
    3881             :          * response.
    3882             :          */
    3883           6 :         if (ctrlr->nr_aer_reqs == 0) {
    3884           5 :                 nvmf_ctrlr_queue_pending_async_event(ctrlr, event);
    3885           5 :                 return 0;
    3886             :         }
    3887             : 
    3888           1 :         req = ctrlr->aer_req[--ctrlr->nr_aer_reqs];
    3889           1 :         rsp = &req->rsp->nvme_cpl;
    3890             : 
    3891           1 :         rsp->cdw0 = event->raw;
    3892             : 
    3893           1 :         _nvmf_request_complete(req);
    3894           1 :         ctrlr->aer_req[ctrlr->nr_aer_reqs] = NULL;
    3895             : 
    3896           1 :         return 0;
    3897             : }
    3898             : 
    3899             : int
    3900           6 : nvmf_ctrlr_async_event_ns_notice(struct spdk_nvmf_ctrlr *ctrlr)
    3901             : {
    3902           6 :         union spdk_nvme_async_event_completion event = {0};
    3903             : 
    3904             :         /* Users may disable the event notification */
    3905           6 :         if (!ctrlr->feat.async_event_configuration.bits.ns_attr_notice) {
    3906           0 :                 return 0;
    3907             :         }
    3908             : 
    3909           6 :         if (!nvmf_ctrlr_mask_aen(ctrlr, SPDK_NVME_ASYNC_EVENT_NS_ATTR_CHANGE_MASK_BIT)) {
    3910           3 :                 return 0;
    3911             :         }
    3912             : 
    3913           3 :         event.bits.async_event_type = SPDK_NVME_ASYNC_EVENT_TYPE_NOTICE;
    3914           3 :         event.bits.async_event_info = SPDK_NVME_ASYNC_EVENT_NS_ATTR_CHANGED;
    3915           3 :         event.bits.log_page_identifier = SPDK_NVME_LOG_CHANGED_NS_LIST;
    3916             : 
    3917           3 :         return nvmf_ctrlr_async_event_notification(ctrlr, &event);
    3918             : }
    3919             : 
    3920             : int
    3921           1 : nvmf_ctrlr_async_event_ana_change_notice(struct spdk_nvmf_ctrlr *ctrlr)
    3922             : {
    3923           1 :         union spdk_nvme_async_event_completion event = {0};
    3924             : 
    3925             :         /* Users may disable the event notification */
    3926           1 :         if (!ctrlr->feat.async_event_configuration.bits.ana_change_notice) {
    3927           0 :                 return 0;
    3928             :         }
    3929             : 
    3930           1 :         if (!nvmf_ctrlr_mask_aen(ctrlr, SPDK_NVME_ASYNC_EVENT_ANA_CHANGE_MASK_BIT)) {
    3931           0 :                 return 0;
    3932             :         }
    3933             : 
    3934           1 :         event.bits.async_event_type = SPDK_NVME_ASYNC_EVENT_TYPE_NOTICE;
    3935           1 :         event.bits.async_event_info = SPDK_NVME_ASYNC_EVENT_ANA_CHANGE;
    3936           1 :         event.bits.log_page_identifier = SPDK_NVME_LOG_ASYMMETRIC_NAMESPACE_ACCESS;
    3937             : 
    3938           1 :         return nvmf_ctrlr_async_event_notification(ctrlr, &event);
    3939             : }
    3940             : 
    3941             : void
    3942           3 : nvmf_ctrlr_async_event_reservation_notification(struct spdk_nvmf_ctrlr *ctrlr)
    3943             : {
    3944           3 :         union spdk_nvme_async_event_completion event = {0};
    3945             : 
    3946           3 :         if (!ctrlr->num_avail_log_pages) {
    3947           0 :                 return;
    3948             :         }
    3949             : 
    3950           3 :         if (!nvmf_ctrlr_mask_aen(ctrlr, SPDK_NVME_ASYNC_EVENT_RESERVATION_LOG_AVAIL_MASK_BIT)) {
    3951           2 :                 return;
    3952             :         }
    3953             : 
    3954           1 :         event.bits.async_event_type = SPDK_NVME_ASYNC_EVENT_TYPE_IO;
    3955           1 :         event.bits.async_event_info = SPDK_NVME_ASYNC_EVENT_RESERVATION_LOG_AVAIL;
    3956           1 :         event.bits.log_page_identifier = SPDK_NVME_LOG_RESERVATION_NOTIFICATION;
    3957             : 
    3958           1 :         nvmf_ctrlr_async_event_notification(ctrlr, &event);
    3959             : }
    3960             : 
    3961             : void
    3962           1 : nvmf_ctrlr_async_event_discovery_log_change_notice(void *ctx)
    3963             : {
    3964           1 :         union spdk_nvme_async_event_completion event = {0};
    3965           1 :         struct spdk_nvmf_ctrlr *ctrlr = ctx;
    3966             : 
    3967             :         /* Users may disable the event notification manually or
    3968             :          * it may not be enabled due to keep alive timeout
    3969             :          * not being set in connect command to discovery controller.
    3970             :          */
    3971           1 :         if (!ctrlr->feat.async_event_configuration.bits.discovery_log_change_notice) {
    3972           0 :                 return;
    3973             :         }
    3974             : 
    3975           1 :         if (!nvmf_ctrlr_mask_aen(ctrlr, SPDK_NVME_ASYNC_EVENT_DISCOVERY_LOG_CHANGE_MASK_BIT)) {
    3976           0 :                 return;
    3977             :         }
    3978             : 
    3979           1 :         event.bits.async_event_type = SPDK_NVME_ASYNC_EVENT_TYPE_NOTICE;
    3980           1 :         event.bits.async_event_info = SPDK_NVME_ASYNC_EVENT_DISCOVERY_LOG_CHANGE;
    3981           1 :         event.bits.log_page_identifier = SPDK_NVME_LOG_DISCOVERY;
    3982             : 
    3983           1 :         nvmf_ctrlr_async_event_notification(ctrlr, &event);
    3984             : }
    3985             : 
    3986             : int
    3987           0 : spdk_nvmf_ctrlr_async_event_error_event(struct spdk_nvmf_ctrlr *ctrlr,
    3988             :                                         enum spdk_nvme_async_event_info_error info)
    3989             : {
    3990           0 :         union spdk_nvme_async_event_completion event;
    3991             : 
    3992           0 :         if (!nvmf_ctrlr_mask_aen(ctrlr, SPDK_NVME_ASYNC_EVENT_ERROR_MASK_BIT)) {
    3993           0 :                 return 0;
    3994             :         }
    3995             : 
    3996           0 :         if (info > SPDK_NVME_ASYNC_EVENT_FW_IMAGE_LOAD) {
    3997           0 :                 return 0;
    3998             :         }
    3999             : 
    4000           0 :         event.bits.async_event_type = SPDK_NVME_ASYNC_EVENT_TYPE_ERROR;
    4001           0 :         event.bits.log_page_identifier = SPDK_NVME_LOG_ERROR;
    4002           0 :         event.bits.async_event_info = info;
    4003             : 
    4004           0 :         return nvmf_ctrlr_async_event_notification(ctrlr, &event);
    4005             : }
    4006             : 
    4007             : void
    4008           0 : nvmf_qpair_free_aer(struct spdk_nvmf_qpair *qpair)
    4009             : {
    4010           0 :         struct spdk_nvmf_ctrlr *ctrlr = qpair->ctrlr;
    4011             :         int i;
    4012             : 
    4013           0 :         if (ctrlr == NULL || !nvmf_qpair_is_admin_queue(qpair)) {
    4014           0 :                 return;
    4015             :         }
    4016             : 
    4017           0 :         assert(spdk_get_thread() == ctrlr->thread);
    4018             : 
    4019           0 :         for (i = 0; i < ctrlr->nr_aer_reqs; i++) {
    4020           0 :                 spdk_nvmf_request_free(ctrlr->aer_req[i]);
    4021           0 :                 ctrlr->aer_req[i] = NULL;
    4022             :         }
    4023             : 
    4024           0 :         ctrlr->nr_aer_reqs = 0;
    4025             : }
    4026             : 
    4027             : void
    4028           0 : spdk_nvmf_ctrlr_abort_aer(struct spdk_nvmf_ctrlr *ctrlr)
    4029             : {
    4030             :         struct spdk_nvmf_request *req;
    4031             :         int i;
    4032             : 
    4033           0 :         assert(spdk_get_thread() == ctrlr->thread);
    4034             : 
    4035           0 :         if (!ctrlr->nr_aer_reqs) {
    4036           0 :                 return;
    4037             :         }
    4038             : 
    4039           0 :         for (i = 0; i < ctrlr->nr_aer_reqs; i++) {
    4040           0 :                 req = ctrlr->aer_req[i];
    4041             : 
    4042           0 :                 req->rsp->nvme_cpl.status.sct = SPDK_NVME_SCT_GENERIC;
    4043           0 :                 req->rsp->nvme_cpl.status.sc = SPDK_NVME_SC_ABORTED_BY_REQUEST;
    4044           0 :                 _nvmf_request_complete(req);
    4045             : 
    4046           0 :                 ctrlr->aer_req[i] = NULL;
    4047             :         }
    4048             : 
    4049           0 :         ctrlr->nr_aer_reqs = 0;
    4050             : }
    4051             : 
    4052             : static void
    4053           3 : _nvmf_ctrlr_add_reservation_log(void *ctx)
    4054             : {
    4055           3 :         struct spdk_nvmf_reservation_log *log = (struct spdk_nvmf_reservation_log *)ctx;
    4056           3 :         struct spdk_nvmf_ctrlr *ctrlr = log->ctrlr;
    4057             : 
    4058           3 :         ctrlr->log_page_count++;
    4059             : 
    4060             :         /* Maximum number of queued log pages is 255 */
    4061           3 :         if (ctrlr->num_avail_log_pages == 0xff) {
    4062             :                 struct spdk_nvmf_reservation_log *entry;
    4063           0 :                 entry = TAILQ_LAST(&ctrlr->log_head, log_page_head);
    4064           0 :                 entry->log.log_page_count = ctrlr->log_page_count;
    4065           0 :                 free(log);
    4066           0 :                 return;
    4067             :         }
    4068             : 
    4069           3 :         log->log.log_page_count = ctrlr->log_page_count;
    4070           3 :         log->log.num_avail_log_pages = ctrlr->num_avail_log_pages++;
    4071           3 :         TAILQ_INSERT_TAIL(&ctrlr->log_head, log, link);
    4072             : 
    4073           3 :         nvmf_ctrlr_async_event_reservation_notification(ctrlr);
    4074             : }
    4075             : 
    4076             : void
    4077           6 : nvmf_ctrlr_reservation_notice_log(struct spdk_nvmf_ctrlr *ctrlr,
    4078             :                                   struct spdk_nvmf_ns *ns,
    4079             :                                   enum spdk_nvme_reservation_notification_log_page_type type)
    4080             : {
    4081             :         struct spdk_nvmf_reservation_log *log;
    4082             : 
    4083           6 :         switch (type) {
    4084           0 :         case SPDK_NVME_RESERVATION_LOG_PAGE_EMPTY:
    4085           0 :                 return;
    4086           2 :         case SPDK_NVME_REGISTRATION_PREEMPTED:
    4087           2 :                 if (ns->mask & SPDK_NVME_REGISTRATION_PREEMPTED_MASK) {
    4088           1 :                         return;
    4089             :                 }
    4090           1 :                 break;
    4091           2 :         case SPDK_NVME_RESERVATION_RELEASED:
    4092           2 :                 if (ns->mask & SPDK_NVME_RESERVATION_RELEASED_MASK) {
    4093           1 :                         return;
    4094             :                 }
    4095           1 :                 break;
    4096           2 :         case SPDK_NVME_RESERVATION_PREEMPTED:
    4097           2 :                 if (ns->mask & SPDK_NVME_RESERVATION_PREEMPTED_MASK) {
    4098           1 :                         return;
    4099             :                 }
    4100           1 :                 break;
    4101           0 :         default:
    4102           0 :                 return;
    4103             :         }
    4104             : 
    4105           3 :         log = calloc(1, sizeof(*log));
    4106           3 :         if (!log) {
    4107           0 :                 SPDK_ERRLOG("Alloc log page failed, ignore the log\n");
    4108           0 :                 return;
    4109             :         }
    4110           3 :         log->ctrlr = ctrlr;
    4111           3 :         log->log.type = type;
    4112           3 :         log->log.nsid = ns->nsid;
    4113             : 
    4114           3 :         spdk_thread_send_msg(ctrlr->thread, _nvmf_ctrlr_add_reservation_log, log);
    4115             : }
    4116             : 
    4117             : /* Check from subsystem poll group's namespace information data structure */
    4118             : static bool
    4119          28 : nvmf_ns_info_ctrlr_is_registrant(struct spdk_nvmf_subsystem_pg_ns_info *ns_info,
    4120             :                                  struct spdk_nvmf_ctrlr *ctrlr)
    4121             : {
    4122             :         uint32_t i;
    4123             : 
    4124         205 :         for (i = 0; i < SPDK_NVMF_MAX_NUM_REGISTRANTS; i++) {
    4125         195 :                 if (!spdk_uuid_compare(&ns_info->reg_hostid[i], &ctrlr->hostid)) {
    4126          18 :                         return true;
    4127             :                 }
    4128             :         }
    4129             : 
    4130          10 :         return false;
    4131             : }
    4132             : 
    4133             : /*
    4134             :  * Check the NVMe command is permitted or not for current controller(Host).
    4135             :  */
    4136             : static int
    4137          38 : nvmf_ns_reservation_request_check(struct spdk_nvmf_subsystem_pg_ns_info *ns_info,
    4138             :                                   struct spdk_nvmf_ctrlr *ctrlr,
    4139             :                                   struct spdk_nvmf_request *req)
    4140             : {
    4141          38 :         struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
    4142          38 :         enum spdk_nvme_reservation_type rtype = ns_info->rtype;
    4143          38 :         uint8_t status = SPDK_NVME_SC_SUCCESS;
    4144             :         uint8_t racqa;
    4145             :         bool is_registrant;
    4146             : 
    4147             :         /* No valid reservation */
    4148          38 :         if (!rtype) {
    4149          10 :                 return 0;
    4150             :         }
    4151             : 
    4152          28 :         is_registrant = nvmf_ns_info_ctrlr_is_registrant(ns_info, ctrlr);
    4153             :         /* All registrants type and current ctrlr is a valid registrant */
    4154          28 :         if ((rtype == SPDK_NVME_RESERVE_WRITE_EXCLUSIVE_ALL_REGS ||
    4155           9 :              rtype == SPDK_NVME_RESERVE_EXCLUSIVE_ACCESS_ALL_REGS) && is_registrant) {
    4156           5 :                 return 0;
    4157          23 :         } else if (!spdk_uuid_compare(&ns_info->holder_id, &ctrlr->hostid)) {
    4158           4 :                 return 0;
    4159             :         }
    4160             : 
    4161             :         /* Non-holder for current controller */
    4162          19 :         switch (cmd->opc) {
    4163           9 :         case SPDK_NVME_OPC_READ:
    4164             :         case SPDK_NVME_OPC_COMPARE:
    4165           9 :                 if (rtype == SPDK_NVME_RESERVE_EXCLUSIVE_ACCESS) {
    4166           1 :                         status = SPDK_NVME_SC_RESERVATION_CONFLICT;
    4167           1 :                         goto exit;
    4168             :                 }
    4169           8 :                 if ((rtype == SPDK_NVME_RESERVE_EXCLUSIVE_ACCESS_REG_ONLY ||
    4170           2 :                      rtype == SPDK_NVME_RESERVE_EXCLUSIVE_ACCESS_ALL_REGS) && !is_registrant) {
    4171           2 :                         status = SPDK_NVME_SC_RESERVATION_CONFLICT;
    4172             :                 }
    4173           8 :                 break;
    4174           9 :         case SPDK_NVME_OPC_FLUSH:
    4175             :         case SPDK_NVME_OPC_WRITE:
    4176             :         case SPDK_NVME_OPC_WRITE_UNCORRECTABLE:
    4177             :         case SPDK_NVME_OPC_WRITE_ZEROES:
    4178             :         case SPDK_NVME_OPC_DATASET_MANAGEMENT:
    4179           9 :                 if (rtype == SPDK_NVME_RESERVE_WRITE_EXCLUSIVE ||
    4180             :                     rtype == SPDK_NVME_RESERVE_EXCLUSIVE_ACCESS) {
    4181           3 :                         status = SPDK_NVME_SC_RESERVATION_CONFLICT;
    4182           3 :                         goto exit;
    4183             :                 }
    4184           6 :                 if (!is_registrant) {
    4185           4 :                         status = SPDK_NVME_SC_RESERVATION_CONFLICT;
    4186             :                 }
    4187           6 :                 break;
    4188           0 :         case SPDK_NVME_OPC_RESERVATION_ACQUIRE:
    4189           0 :                 racqa = cmd->cdw10_bits.resv_acquire.racqa;
    4190           0 :                 if (racqa == SPDK_NVME_RESERVE_ACQUIRE) {
    4191           0 :                         status = SPDK_NVME_SC_RESERVATION_CONFLICT;
    4192           0 :                         goto exit;
    4193             :                 }
    4194           0 :                 if (!is_registrant) {
    4195           0 :                         status = SPDK_NVME_SC_RESERVATION_CONFLICT;
    4196             :                 }
    4197           0 :                 break;
    4198           1 :         case SPDK_NVME_OPC_RESERVATION_RELEASE:
    4199           1 :                 if (!is_registrant) {
    4200           0 :                         status = SPDK_NVME_SC_RESERVATION_CONFLICT;
    4201             :                 }
    4202           1 :                 break;
    4203           0 :         default:
    4204           0 :                 break;
    4205             :         }
    4206             : 
    4207          19 : exit:
    4208          19 :         req->rsp->nvme_cpl.status.sct = SPDK_NVME_SCT_GENERIC;
    4209          19 :         req->rsp->nvme_cpl.status.sc = status;
    4210          19 :         if (status == SPDK_NVME_SC_RESERVATION_CONFLICT) {
    4211          10 :                 return -EPERM;
    4212             :         }
    4213             : 
    4214           9 :         return 0;
    4215             : }
    4216             : 
    4217             : static int
    4218           6 : nvmf_ctrlr_process_io_fused_cmd(struct spdk_nvmf_request *req, struct spdk_bdev *bdev,
    4219             :                                 struct spdk_bdev_desc *desc, struct spdk_io_channel *ch)
    4220             : {
    4221           6 :         struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
    4222           6 :         struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl;
    4223           6 :         struct spdk_nvmf_request *first_fused_req = req->qpair->first_fused_req;
    4224             :         int rc;
    4225             : 
    4226           6 :         if (cmd->fuse == SPDK_NVME_CMD_FUSE_FIRST) {
    4227             :                 /* first fused operation (should be compare) */
    4228           3 :                 if (first_fused_req != NULL) {
    4229           0 :                         struct spdk_nvme_cpl *fused_response = &first_fused_req->rsp->nvme_cpl;
    4230             : 
    4231           0 :                         SPDK_ERRLOG("Wrong sequence of fused operations\n");
    4232             : 
    4233             :                         /* abort req->qpair->first_fused_request and continue with new fused command */
    4234           0 :                         fused_response->status.sc = SPDK_NVME_SC_ABORTED_MISSING_FUSED;
    4235           0 :                         fused_response->status.sct = SPDK_NVME_SCT_GENERIC;
    4236           0 :                         _nvmf_request_complete(first_fused_req);
    4237           3 :                 } else if (cmd->opc != SPDK_NVME_OPC_COMPARE) {
    4238           1 :                         SPDK_ERRLOG("Wrong op code of fused operations\n");
    4239           1 :                         rsp->status.sct = SPDK_NVME_SCT_GENERIC;
    4240           1 :                         rsp->status.sc = SPDK_NVME_SC_INVALID_OPCODE;
    4241           1 :                         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    4242             :                 }
    4243             : 
    4244           2 :                 req->qpair->first_fused_req = req;
    4245           2 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
    4246           3 :         } else if (cmd->fuse == SPDK_NVME_CMD_FUSE_SECOND) {
    4247             :                 /* second fused operation (should be write) */
    4248           3 :                 if (first_fused_req == NULL) {
    4249           1 :                         SPDK_ERRLOG("Wrong sequence of fused operations\n");
    4250           1 :                         rsp->status.sct = SPDK_NVME_SCT_GENERIC;
    4251           1 :                         rsp->status.sc = SPDK_NVME_SC_ABORTED_MISSING_FUSED;
    4252           1 :                         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    4253           2 :                 } else if (cmd->opc != SPDK_NVME_OPC_WRITE) {
    4254           1 :                         struct spdk_nvme_cpl *fused_response = &first_fused_req->rsp->nvme_cpl;
    4255             : 
    4256           1 :                         SPDK_ERRLOG("Wrong op code of fused operations\n");
    4257             : 
    4258             :                         /* abort req->qpair->first_fused_request and fail current command */
    4259           1 :                         fused_response->status.sc = SPDK_NVME_SC_ABORTED_MISSING_FUSED;
    4260           1 :                         fused_response->status.sct = SPDK_NVME_SCT_GENERIC;
    4261           1 :                         _nvmf_request_complete(first_fused_req);
    4262             : 
    4263           1 :                         rsp->status.sct = SPDK_NVME_SCT_GENERIC;
    4264           1 :                         rsp->status.sc = SPDK_NVME_SC_INVALID_OPCODE;
    4265           1 :                         req->qpair->first_fused_req = NULL;
    4266           1 :                         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    4267             :                 }
    4268             : 
    4269             :                 /* save request of first command to generate response later */
    4270           1 :                 req->first_fused_req = first_fused_req;
    4271           1 :                 req->first_fused = true;
    4272           1 :                 req->qpair->first_fused_req = NULL;
    4273             :         } else {
    4274           0 :                 SPDK_ERRLOG("Invalid fused command fuse field.\n");
    4275           0 :                 rsp->status.sct = SPDK_NVME_SCT_GENERIC;
    4276           0 :                 rsp->status.sc = SPDK_NVME_SC_INVALID_FIELD;
    4277           0 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    4278             :         }
    4279             : 
    4280           1 :         rc = nvmf_bdev_ctrlr_compare_and_write_cmd(bdev, desc, ch, req->first_fused_req, req);
    4281             : 
    4282           1 :         if (rc == SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE) {
    4283           1 :                 if (spdk_nvme_cpl_is_error(rsp)) {
    4284           0 :                         struct spdk_nvme_cpl *fused_response = &first_fused_req->rsp->nvme_cpl;
    4285             : 
    4286           0 :                         fused_response->status = rsp->status;
    4287           0 :                         rsp->status.sct = SPDK_NVME_SCT_GENERIC;
    4288           0 :                         rsp->status.sc = SPDK_NVME_SC_ABORTED_FAILED_FUSED;
    4289             :                         /* Complete first of fused commands. Second will be completed by upper layer */
    4290           0 :                         _nvmf_request_complete(first_fused_req);
    4291           0 :                         req->first_fused_req = NULL;
    4292           0 :                         req->first_fused = false;
    4293             :                 }
    4294             :         }
    4295             : 
    4296           1 :         return rc;
    4297             : }
    4298             : 
    4299             : bool
    4300         271 : nvmf_ctrlr_use_zcopy(struct spdk_nvmf_request *req)
    4301             : {
    4302         271 :         struct spdk_nvmf_transport *transport = req->qpair->transport;
    4303             :         struct spdk_nvmf_ns *ns;
    4304             : 
    4305         271 :         assert(req->zcopy_phase == NVMF_ZCOPY_PHASE_NONE);
    4306             : 
    4307         271 :         if (!transport->opts.zcopy) {
    4308           3 :                 return false;
    4309             :         }
    4310             : 
    4311         268 :         if (nvmf_qpair_is_admin_queue(req->qpair)) {
    4312             :                 /* Admin queue */
    4313           1 :                 return false;
    4314             :         }
    4315             : 
    4316         267 :         if ((req->cmd->nvme_cmd.opc != SPDK_NVME_OPC_WRITE) &&
    4317         262 :             (req->cmd->nvme_cmd.opc != SPDK_NVME_OPC_READ)) {
    4318             :                 /* Not a READ or WRITE command */
    4319         254 :                 return false;
    4320             :         }
    4321             : 
    4322          13 :         if (req->cmd->nvme_cmd.fuse != SPDK_NVME_CMD_FUSE_NONE) {
    4323             :                 /* Fused commands dont use zcopy buffers */
    4324           1 :                 return false;
    4325             :         }
    4326             : 
    4327          12 :         ns = nvmf_ctrlr_get_ns(req->qpair->ctrlr, req->cmd->nvme_cmd.nsid);
    4328          12 :         if (ns == NULL || ns->bdev == NULL || !ns->zcopy) {
    4329           2 :                 return false;
    4330             :         }
    4331             : 
    4332          10 :         req->zcopy_phase = NVMF_ZCOPY_PHASE_INIT;
    4333          10 :         return true;
    4334             : }
    4335             : 
    4336             : void
    4337           9 : spdk_nvmf_request_zcopy_start(struct spdk_nvmf_request *req)
    4338             : {
    4339           9 :         assert(req->zcopy_phase == NVMF_ZCOPY_PHASE_INIT);
    4340             : 
    4341             :         /* Set iovcnt to be the maximum number of iovs that the ZCOPY can use */
    4342           9 :         req->iovcnt = NVMF_REQ_MAX_BUFFERS;
    4343             : 
    4344           9 :         spdk_nvmf_request_exec(req);
    4345           9 : }
    4346             : 
    4347             : void
    4348           2 : spdk_nvmf_request_zcopy_end(struct spdk_nvmf_request *req, bool commit)
    4349             : {
    4350           2 :         assert(req->zcopy_phase == NVMF_ZCOPY_PHASE_EXECUTE);
    4351           2 :         req->zcopy_phase = NVMF_ZCOPY_PHASE_END_PENDING;
    4352             : 
    4353           2 :         nvmf_bdev_ctrlr_zcopy_end(req, commit);
    4354           2 : }
    4355             : 
    4356             : int
    4357          10 : nvmf_ctrlr_process_io_cmd(struct spdk_nvmf_request *req)
    4358             : {
    4359             :         uint32_t nsid;
    4360             :         struct spdk_nvmf_ns *ns;
    4361             :         struct spdk_bdev *bdev;
    4362             :         struct spdk_bdev_desc *desc;
    4363             :         struct spdk_io_channel *ch;
    4364          10 :         struct spdk_nvmf_qpair *qpair = req->qpair;
    4365          10 :         struct spdk_nvmf_poll_group *group = qpair->group;
    4366          10 :         struct spdk_nvmf_ctrlr *ctrlr = qpair->ctrlr;
    4367          10 :         struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
    4368          10 :         struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl;
    4369             :         struct spdk_nvmf_subsystem_pg_ns_info *ns_info;
    4370             :         enum spdk_nvme_ana_state ana_state;
    4371             : 
    4372             :         /* pre-set response details for this command */
    4373          10 :         response->status.sc = SPDK_NVME_SC_SUCCESS;
    4374          10 :         nsid = cmd->nsid;
    4375             : 
    4376          10 :         assert(ctrlr != NULL);
    4377          10 :         if (spdk_unlikely(ctrlr->vcprop.cc.bits.en != 1)) {
    4378           0 :                 SPDK_ERRLOG("I/O command sent to disabled controller\n");
    4379           0 :                 response->status.sct = SPDK_NVME_SCT_GENERIC;
    4380           0 :                 response->status.sc = SPDK_NVME_SC_COMMAND_SEQUENCE_ERROR;
    4381           0 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    4382             :         }
    4383             : 
    4384          10 :         ns = nvmf_ctrlr_get_ns(ctrlr, nsid);
    4385          10 :         if (spdk_unlikely(ns == NULL || ns->bdev == NULL)) {
    4386           0 :                 SPDK_DEBUGLOG(nvmf, "Unsuccessful query for nsid %u\n", cmd->nsid);
    4387           0 :                 response->status.sc = SPDK_NVME_SC_INVALID_NAMESPACE_OR_FORMAT;
    4388           0 :                 response->status.dnr = 1;
    4389           0 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    4390             :         }
    4391             : 
    4392          10 :         ana_state = nvmf_ctrlr_get_ana_state(ctrlr, ns->anagrpid);
    4393          10 :         if (spdk_unlikely(ana_state != SPDK_NVME_ANA_OPTIMIZED_STATE &&
    4394             :                           ana_state != SPDK_NVME_ANA_NON_OPTIMIZED_STATE)) {
    4395           0 :                 SPDK_DEBUGLOG(nvmf, "Fail I/O command due to ANA state %d\n",
    4396             :                               ana_state);
    4397           0 :                 response->status.sct = SPDK_NVME_SCT_PATH;
    4398           0 :                 response->status.sc = _nvme_ana_state_to_path_status(ana_state);
    4399           0 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    4400             :         }
    4401             : 
    4402          10 :         if (spdk_likely(ctrlr->listener != NULL)) {
    4403             :                 SPDK_DTRACE_PROBE3_TICKS(nvmf_request_io_exec_path, req,
    4404             :                                          ctrlr->listener->trid->traddr,
    4405             :                                          ctrlr->listener->trid->trsvcid);
    4406             :         }
    4407             : 
    4408             :         /* scan-build falsely reporting dereference of null pointer */
    4409          10 :         assert(group != NULL && group->sgroups != NULL);
    4410          10 :         ns_info = &group->sgroups[ctrlr->subsys->id].ns_info[nsid - 1];
    4411          10 :         if (nvmf_ns_reservation_request_check(ns_info, ctrlr, req)) {
    4412           0 :                 SPDK_DEBUGLOG(nvmf, "Reservation Conflict for nsid %u, opcode %u\n",
    4413             :                               cmd->nsid, cmd->opc);
    4414           0 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    4415             :         }
    4416             : 
    4417          10 :         bdev = ns->bdev;
    4418          10 :         desc = ns->desc;
    4419          10 :         ch = ns_info->channel;
    4420             : 
    4421          10 :         if (spdk_unlikely(cmd->fuse & SPDK_NVME_CMD_FUSE_MASK)) {
    4422           6 :                 return nvmf_ctrlr_process_io_fused_cmd(req, bdev, desc, ch);
    4423           4 :         } else if (spdk_unlikely(qpair->first_fused_req != NULL)) {
    4424           0 :                 struct spdk_nvme_cpl *fused_response = &qpair->first_fused_req->rsp->nvme_cpl;
    4425             : 
    4426           0 :                 SPDK_ERRLOG("Second fused cmd expected - failing first one (cntlid:%u, qid:%u, opcode:0x%x)\n",
    4427             :                             ctrlr->cntlid, qpair->qid,
    4428             :                             req->qpair->first_fused_req->cmd->nvmf_cmd.opcode);
    4429             : 
    4430             :                 /* abort qpair->first_fused_request and continue with new command */
    4431           0 :                 fused_response->status.sc = SPDK_NVME_SC_ABORTED_MISSING_FUSED;
    4432           0 :                 fused_response->status.sct = SPDK_NVME_SCT_GENERIC;
    4433           0 :                 _nvmf_request_complete(qpair->first_fused_req);
    4434           0 :                 qpair->first_fused_req = NULL;
    4435             :         }
    4436             : 
    4437           4 :         if (spdk_nvmf_request_using_zcopy(req)) {
    4438           4 :                 assert(req->zcopy_phase == NVMF_ZCOPY_PHASE_INIT);
    4439           4 :                 return nvmf_bdev_ctrlr_zcopy_start(bdev, desc, ch, req);
    4440             :         } else {
    4441           0 :                 switch (cmd->opc) {
    4442           0 :                 case SPDK_NVME_OPC_READ:
    4443           0 :                         return nvmf_bdev_ctrlr_read_cmd(bdev, desc, ch, req);
    4444           0 :                 case SPDK_NVME_OPC_WRITE:
    4445           0 :                         return nvmf_bdev_ctrlr_write_cmd(bdev, desc, ch, req);
    4446           0 :                 case SPDK_NVME_OPC_FLUSH:
    4447           0 :                         return nvmf_bdev_ctrlr_flush_cmd(bdev, desc, ch, req);
    4448           0 :                 case SPDK_NVME_OPC_COMPARE:
    4449           0 :                         if (spdk_unlikely(!ctrlr->cdata.oncs.compare)) {
    4450           0 :                                 goto invalid_opcode;
    4451             :                         }
    4452           0 :                         return nvmf_bdev_ctrlr_compare_cmd(bdev, desc, ch, req);
    4453           0 :                 case SPDK_NVME_OPC_WRITE_ZEROES:
    4454           0 :                         if (spdk_unlikely(!ctrlr->cdata.oncs.write_zeroes)) {
    4455           0 :                                 goto invalid_opcode;
    4456             :                         }
    4457           0 :                         return nvmf_bdev_ctrlr_write_zeroes_cmd(bdev, desc, ch, req);
    4458           0 :                 case SPDK_NVME_OPC_DATASET_MANAGEMENT:
    4459           0 :                         if (spdk_unlikely(!ctrlr->cdata.oncs.dsm)) {
    4460           0 :                                 goto invalid_opcode;
    4461             :                         }
    4462           0 :                         return nvmf_bdev_ctrlr_dsm_cmd(bdev, desc, ch, req);
    4463           0 :                 case SPDK_NVME_OPC_RESERVATION_REGISTER:
    4464             :                 case SPDK_NVME_OPC_RESERVATION_ACQUIRE:
    4465             :                 case SPDK_NVME_OPC_RESERVATION_RELEASE:
    4466             :                 case SPDK_NVME_OPC_RESERVATION_REPORT:
    4467           0 :                         if (spdk_unlikely(!ctrlr->cdata.oncs.reservations)) {
    4468           0 :                                 goto invalid_opcode;
    4469             :                         }
    4470           0 :                         spdk_thread_send_msg(ctrlr->subsys->thread, nvmf_ns_reservation_request, req);
    4471           0 :                         return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
    4472           0 :                 case SPDK_NVME_OPC_COPY:
    4473           0 :                         if (spdk_unlikely(!ctrlr->cdata.oncs.copy)) {
    4474           0 :                                 goto invalid_opcode;
    4475             :                         }
    4476           0 :                         return nvmf_bdev_ctrlr_copy_cmd(bdev, desc, ch, req);
    4477           0 :                 default:
    4478           0 :                         if (spdk_unlikely(qpair->transport->opts.disable_command_passthru)) {
    4479           0 :                                 goto invalid_opcode;
    4480             :                         }
    4481           0 :                         return nvmf_bdev_ctrlr_nvme_passthru_io(bdev, desc, ch, req);
    4482             :                 }
    4483             :         }
    4484           0 : invalid_opcode:
    4485           0 :         SPDK_INFOLOG(nvmf, "Unsupported IO opcode 0x%x\n", cmd->opc);
    4486           0 :         response->status.sct = SPDK_NVME_SCT_GENERIC;
    4487           0 :         response->status.sc = SPDK_NVME_SC_INVALID_OPCODE;
    4488           0 :         response->status.dnr = 1;
    4489           0 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    4490             : }
    4491             : 
    4492             : static void
    4493          40 : nvmf_qpair_request_cleanup(struct spdk_nvmf_qpair *qpair)
    4494             : {
    4495          40 :         if (spdk_unlikely(qpair->state == SPDK_NVMF_QPAIR_DEACTIVATING)) {
    4496           2 :                 assert(qpair->state_cb != NULL);
    4497             : 
    4498           2 :                 if (TAILQ_EMPTY(&qpair->outstanding)) {
    4499           2 :                         qpair->state_cb(qpair->state_cb_arg, 0);
    4500             :                 }
    4501             :         }
    4502          40 : }
    4503             : 
    4504             : int
    4505           0 : spdk_nvmf_request_free(struct spdk_nvmf_request *req)
    4506             : {
    4507           0 :         struct spdk_nvmf_qpair *qpair = req->qpair;
    4508             : 
    4509           0 :         TAILQ_REMOVE(&qpair->outstanding, req, link);
    4510           0 :         if (spdk_unlikely(nvmf_transport_req_free(req))) {
    4511           0 :                 SPDK_ERRLOG("Unable to free transport level request resources.\n");
    4512             :         }
    4513             : 
    4514           0 :         nvmf_qpair_request_cleanup(qpair);
    4515             : 
    4516           0 :         return 0;
    4517             : }
    4518             : 
    4519             : static void
    4520          40 : _nvmf_request_complete(void *ctx)
    4521             : {
    4522          40 :         struct spdk_nvmf_request *req = ctx;
    4523          40 :         struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl;
    4524             :         struct spdk_nvmf_qpair *qpair;
    4525          40 :         struct spdk_nvmf_subsystem_poll_group *sgroup = NULL;
    4526             :         struct spdk_nvmf_subsystem_pg_ns_info *ns_info;
    4527          40 :         bool is_aer = false;
    4528             :         uint32_t nsid;
    4529             :         bool paused;
    4530             :         uint8_t opcode;
    4531             : 
    4532          40 :         rsp->sqid = 0;
    4533          40 :         rsp->status.p = 0;
    4534          40 :         rsp->cid = req->cmd->nvme_cmd.cid;
    4535          40 :         nsid = req->cmd->nvme_cmd.nsid;
    4536          40 :         opcode = req->cmd->nvmf_cmd.opcode;
    4537             : 
    4538          40 :         qpair = req->qpair;
    4539          40 :         if (spdk_likely(qpair->ctrlr)) {
    4540          23 :                 sgroup = &qpair->group->sgroups[qpair->ctrlr->subsys->id];
    4541          23 :                 assert(sgroup != NULL);
    4542          23 :                 is_aer = req->cmd->nvme_cmd.opc == SPDK_NVME_OPC_ASYNC_EVENT_REQUEST;
    4543          23 :                 if (spdk_likely(qpair->qid != 0)) {
    4544          16 :                         qpair->group->stat.completed_nvme_io++;
    4545             :                 }
    4546             : 
    4547             :                 /*
    4548             :                  * Set the crd value.
    4549             :                  * If the the IO has any error, and dnr (DoNotRetry) is not 1,
    4550             :                  * and ACRE is enabled, we will set the crd to 1 to select the first CRDT.
    4551             :                  */
    4552          23 :                 if (spdk_unlikely(spdk_nvme_cpl_is_error(rsp) &&
    4553             :                                   rsp->status.dnr == 0 &&
    4554             :                                   qpair->ctrlr->acre_enabled)) {
    4555           0 :                         rsp->status.crd = 1;
    4556             :                 }
    4557          17 :         } else if (spdk_unlikely(nvmf_request_is_fabric_connect(req))) {
    4558           9 :                 sgroup = nvmf_subsystem_pg_from_connect_cmd(req);
    4559             :         }
    4560             : 
    4561          40 :         if (SPDK_DEBUGLOG_FLAG_ENABLED("nvmf")) {
    4562           0 :                 spdk_nvme_print_completion(qpair->qid, rsp);
    4563             :         }
    4564             : 
    4565          40 :         switch (req->zcopy_phase) {
    4566          30 :         case NVMF_ZCOPY_PHASE_NONE:
    4567          30 :                 TAILQ_REMOVE(&qpair->outstanding, req, link);
    4568          30 :                 break;
    4569           8 :         case NVMF_ZCOPY_PHASE_INIT:
    4570           8 :                 if (spdk_unlikely(spdk_nvme_cpl_is_error(rsp))) {
    4571           5 :                         req->zcopy_phase = NVMF_ZCOPY_PHASE_INIT_FAILED;
    4572           5 :                         TAILQ_REMOVE(&qpair->outstanding, req, link);
    4573             :                 } else {
    4574           3 :                         req->zcopy_phase = NVMF_ZCOPY_PHASE_EXECUTE;
    4575             :                 }
    4576           8 :                 break;
    4577           0 :         case NVMF_ZCOPY_PHASE_EXECUTE:
    4578           0 :                 break;
    4579           2 :         case NVMF_ZCOPY_PHASE_END_PENDING:
    4580           2 :                 TAILQ_REMOVE(&qpair->outstanding, req, link);
    4581           2 :                 req->zcopy_phase = NVMF_ZCOPY_PHASE_COMPLETE;
    4582           2 :                 break;
    4583           0 :         default:
    4584           0 :                 SPDK_ERRLOG("Invalid ZCOPY phase %u\n", req->zcopy_phase);
    4585           0 :                 break;
    4586             :         }
    4587             : 
    4588          40 :         if (spdk_unlikely(nvmf_transport_req_complete(req))) {
    4589           0 :                 SPDK_ERRLOG("Transport request completion error!\n");
    4590             :         }
    4591             : 
    4592             :         /* AER cmd is an exception */
    4593          40 :         if (spdk_likely(sgroup && !is_aer)) {
    4594          30 :                 if (spdk_unlikely(opcode == SPDK_NVME_OPC_FABRIC ||
    4595             :                                   nvmf_qpair_is_admin_queue(qpair))) {
    4596          16 :                         assert(sgroup->mgmt_io_outstanding > 0);
    4597          16 :                         sgroup->mgmt_io_outstanding--;
    4598             :                 } else {
    4599          14 :                         if (req->zcopy_phase == NVMF_ZCOPY_PHASE_NONE ||
    4600           9 :                             req->zcopy_phase == NVMF_ZCOPY_PHASE_COMPLETE ||
    4601           7 :                             req->zcopy_phase == NVMF_ZCOPY_PHASE_INIT_FAILED) {
    4602             :                                 /* End of request */
    4603             : 
    4604             :                                 /* NOTE: This implicitly also checks for 0, since 0 - 1 wraps around to UINT32_MAX. */
    4605          11 :                                 if (spdk_likely(nsid - 1 < sgroup->num_ns)) {
    4606          10 :                                         sgroup->ns_info[nsid - 1].io_outstanding--;
    4607             :                                 }
    4608             :                         }
    4609             :                 }
    4610             : 
    4611          30 :                 if (spdk_unlikely(sgroup->state == SPDK_NVMF_SUBSYSTEM_PAUSING &&
    4612             :                                   sgroup->mgmt_io_outstanding == 0)) {
    4613           0 :                         paused = true;
    4614           0 :                         for (nsid = 0; nsid < sgroup->num_ns; nsid++) {
    4615           0 :                                 ns_info = &sgroup->ns_info[nsid];
    4616             : 
    4617           0 :                                 if (ns_info->state == SPDK_NVMF_SUBSYSTEM_PAUSING &&
    4618           0 :                                     ns_info->io_outstanding > 0) {
    4619           0 :                                         paused = false;
    4620           0 :                                         break;
    4621             :                                 }
    4622             :                         }
    4623             : 
    4624           0 :                         if (paused) {
    4625           0 :                                 sgroup->state = SPDK_NVMF_SUBSYSTEM_PAUSED;
    4626           0 :                                 sgroup->cb_fn(sgroup->cb_arg, 0);
    4627           0 :                                 sgroup->cb_fn = NULL;
    4628           0 :                                 sgroup->cb_arg = NULL;
    4629             :                         }
    4630             :                 }
    4631             : 
    4632             :         }
    4633             : 
    4634          40 :         nvmf_qpair_request_cleanup(qpair);
    4635          40 : }
    4636             : 
    4637             : int
    4638          18 : spdk_nvmf_request_complete(struct spdk_nvmf_request *req)
    4639             : {
    4640          18 :         struct spdk_nvmf_qpair *qpair = req->qpair;
    4641             : 
    4642          18 :         spdk_thread_exec_msg(qpair->group->thread, _nvmf_request_complete, req);
    4643             : 
    4644          18 :         return 0;
    4645             : }
    4646             : 
    4647           2 : SPDK_LOG_DEPRECATION_REGISTER(nvmf_request_exec_fabrics, "spdk_nvmf_request_exec_fabrics()",
    4648             :                               "v24.09", 1);
    4649             : void
    4650           0 : spdk_nvmf_request_exec_fabrics(struct spdk_nvmf_request *req)
    4651             : {
    4652           0 :         SPDK_LOG_DEPRECATED(nvmf_request_exec_fabrics);
    4653             : 
    4654           0 :         return spdk_nvmf_request_exec(req);
    4655             : }
    4656             : 
    4657             : static bool
    4658          15 : nvmf_check_subsystem_active(struct spdk_nvmf_request *req)
    4659             : {
    4660          15 :         struct spdk_nvmf_qpair *qpair = req->qpair;
    4661          15 :         struct spdk_nvmf_subsystem_poll_group *sgroup = NULL;
    4662             :         struct spdk_nvmf_subsystem_pg_ns_info *ns_info;
    4663             :         uint32_t nsid;
    4664             : 
    4665          15 :         if (spdk_likely(qpair->ctrlr)) {
    4666          14 :                 sgroup = &qpair->group->sgroups[qpair->ctrlr->subsys->id];
    4667          14 :                 assert(sgroup != NULL);
    4668           1 :         } else if (spdk_unlikely(nvmf_request_is_fabric_connect(req))) {
    4669           0 :                 sgroup = nvmf_subsystem_pg_from_connect_cmd(req);
    4670             :         }
    4671             : 
    4672             :         /* Check if the subsystem is paused (if there is a subsystem) */
    4673          15 :         if (spdk_unlikely(sgroup == NULL)) {
    4674           1 :                 return true;
    4675             :         }
    4676             : 
    4677          14 :         if (spdk_unlikely(req->cmd->nvmf_cmd.opcode == SPDK_NVME_OPC_FABRIC ||
    4678             :                           nvmf_qpair_is_admin_queue(qpair))) {
    4679           0 :                 if (sgroup->state != SPDK_NVMF_SUBSYSTEM_ACTIVE) {
    4680             :                         /* The subsystem is not currently active. Queue this request. */
    4681           0 :                         TAILQ_INSERT_TAIL(&sgroup->queued, req, link);
    4682           0 :                         return false;
    4683             :                 }
    4684           0 :                 sgroup->mgmt_io_outstanding++;
    4685             :         } else {
    4686          14 :                 nsid = req->cmd->nvme_cmd.nsid;
    4687             : 
    4688             :                 /* NOTE: This implicitly also checks for 0, since 0 - 1 wraps around to UINT32_MAX. */
    4689          14 :                 if (spdk_unlikely(nsid - 1 >= sgroup->num_ns)) {
    4690           1 :                         req->rsp->nvme_cpl.status.sct = SPDK_NVME_SCT_GENERIC;
    4691           1 :                         req->rsp->nvme_cpl.status.sc = SPDK_NVME_SC_INVALID_NAMESPACE_OR_FORMAT;
    4692           1 :                         req->rsp->nvme_cpl.status.dnr = 1;
    4693           1 :                         TAILQ_INSERT_TAIL(&qpair->outstanding, req, link);
    4694           1 :                         _nvmf_request_complete(req);
    4695           1 :                         return false;
    4696             :                 }
    4697             : 
    4698          13 :                 ns_info = &sgroup->ns_info[nsid - 1];
    4699          13 :                 if (spdk_unlikely(ns_info->channel == NULL)) {
    4700             :                         /* This can can happen if host sends I/O to a namespace that is
    4701             :                          * in the process of being added, but before the full addition
    4702             :                          * process is complete.  Report invalid namespace in that case.
    4703             :                          */
    4704           1 :                         req->rsp->nvme_cpl.status.sct = SPDK_NVME_SCT_GENERIC;
    4705           1 :                         req->rsp->nvme_cpl.status.sc = SPDK_NVME_SC_INVALID_NAMESPACE_OR_FORMAT;
    4706           1 :                         req->rsp->nvme_cpl.status.dnr = 1;
    4707           1 :                         TAILQ_INSERT_TAIL(&qpair->outstanding, req, link);
    4708           1 :                         ns_info->io_outstanding++;
    4709           1 :                         _nvmf_request_complete(req);
    4710           1 :                         return false;
    4711             :                 }
    4712             : 
    4713          12 :                 if (spdk_unlikely(ns_info->state != SPDK_NVMF_SUBSYSTEM_ACTIVE)) {
    4714             :                         /* The namespace is not currently active. Queue this request. */
    4715           1 :                         TAILQ_INSERT_TAIL(&sgroup->queued, req, link);
    4716           1 :                         return false;
    4717             :                 }
    4718             : 
    4719          11 :                 ns_info->io_outstanding++;
    4720             :         }
    4721             : 
    4722          11 :         return true;
    4723             : }
    4724             : 
    4725             : static bool
    4726          22 : nvmf_check_qpair_active(struct spdk_nvmf_request *req)
    4727             : {
    4728          22 :         struct spdk_nvmf_qpair *qpair = req->qpair;
    4729             :         int sc, sct;
    4730             : 
    4731          22 :         if (spdk_likely(qpair->state == SPDK_NVMF_QPAIR_ENABLED)) {
    4732          11 :                 return true;
    4733             :         }
    4734             : 
    4735          11 :         sct = SPDK_NVME_SCT_GENERIC;
    4736          11 :         sc = SPDK_NVME_SC_COMMAND_SEQUENCE_ERROR;
    4737             : 
    4738          11 :         switch (qpair->state) {
    4739           4 :         case SPDK_NVMF_QPAIR_CONNECTING:
    4740           4 :                 if (req->cmd->nvmf_cmd.opcode != SPDK_NVME_OPC_FABRIC) {
    4741           3 :                         SPDK_ERRLOG("Received command 0x%x on qid %u before CONNECT\n",
    4742             :                                     req->cmd->nvmf_cmd.opcode, qpair->qid);
    4743           3 :                         break;
    4744             :                 }
    4745           1 :                 if (req->cmd->nvmf_cmd.fctype != SPDK_NVMF_FABRIC_COMMAND_CONNECT) {
    4746           0 :                         SPDK_ERRLOG("Received fctype 0x%x on qid %u before CONNECT\n",
    4747             :                                     req->cmd->nvmf_cmd.fctype, qpair->qid);
    4748           0 :                         break;
    4749             :                 }
    4750           1 :                 return true;
    4751           3 :         case SPDK_NVMF_QPAIR_AUTHENTICATING:
    4752           3 :                 sct = SPDK_NVME_SCT_COMMAND_SPECIFIC;
    4753           3 :                 sc = SPDK_NVMF_FABRIC_SC_AUTH_REQUIRED;
    4754           3 :                 if (req->cmd->nvmf_cmd.opcode != SPDK_NVME_OPC_FABRIC) {
    4755           1 :                         SPDK_ERRLOG("Received command 0x%x on qid %u before authentication\n",
    4756             :                                     req->cmd->nvmf_cmd.opcode, qpair->qid);
    4757           1 :                         break;
    4758             :                 }
    4759           2 :                 if (req->cmd->nvmf_cmd.fctype != SPDK_NVMF_FABRIC_COMMAND_AUTHENTICATION_SEND &&
    4760           1 :                     req->cmd->nvmf_cmd.fctype != SPDK_NVMF_FABRIC_COMMAND_AUTHENTICATION_RECV) {
    4761           0 :                         SPDK_ERRLOG("Received fctype 0x%x on qid %u before authentication\n",
    4762             :                                     req->cmd->nvmf_cmd.fctype, qpair->qid);
    4763           0 :                         break;
    4764             :                 }
    4765           2 :                 return true;
    4766           4 :         default:
    4767           4 :                 SPDK_ERRLOG("Received command 0x%x on qid %u in state %d\n",
    4768             :                             req->cmd->nvmf_cmd.opcode, qpair->qid, qpair->state);
    4769           4 :                 break;
    4770             :         }
    4771             : 
    4772           8 :         req->rsp->nvme_cpl.status.sct = sct;
    4773           8 :         req->rsp->nvme_cpl.status.sc = sc;
    4774           8 :         TAILQ_INSERT_TAIL(&qpair->outstanding, req, link);
    4775           8 :         _nvmf_request_complete(req);
    4776             : 
    4777           8 :         return false;
    4778             : }
    4779             : 
    4780             : void
    4781          15 : spdk_nvmf_request_exec(struct spdk_nvmf_request *req)
    4782             : {
    4783          15 :         struct spdk_nvmf_qpair *qpair = req->qpair;
    4784             :         enum spdk_nvmf_request_exec_status status;
    4785             : 
    4786          15 :         if (spdk_unlikely(!nvmf_check_subsystem_active(req))) {
    4787           3 :                 return;
    4788             :         }
    4789          12 :         if (spdk_unlikely(!nvmf_check_qpair_active(req))) {
    4790           2 :                 return;
    4791             :         }
    4792             : 
    4793          10 :         if (SPDK_DEBUGLOG_FLAG_ENABLED("nvmf")) {
    4794           0 :                 spdk_nvme_print_command(qpair->qid, &req->cmd->nvme_cmd);
    4795             :         }
    4796             : 
    4797             :         /* Place the request on the outstanding list so we can keep track of it */
    4798          10 :         TAILQ_INSERT_TAIL(&qpair->outstanding, req, link);
    4799             : 
    4800          10 :         if (spdk_unlikely(req->cmd->nvmf_cmd.opcode == SPDK_NVME_OPC_FABRIC)) {
    4801           0 :                 status = nvmf_ctrlr_process_fabrics_cmd(req);
    4802          10 :         } else if (spdk_unlikely(nvmf_qpair_is_admin_queue(qpair))) {
    4803           0 :                 status = nvmf_ctrlr_process_admin_cmd(req);
    4804             :         } else {
    4805          10 :                 status = nvmf_ctrlr_process_io_cmd(req);
    4806             :         }
    4807             : 
    4808          10 :         if (status == SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE) {
    4809           8 :                 _nvmf_request_complete(req);
    4810             :         }
    4811             : }
    4812             : 
    4813             : static bool
    4814           4 : nvmf_ctrlr_get_dif_ctx(struct spdk_nvmf_ctrlr *ctrlr, struct spdk_nvme_cmd *cmd,
    4815             :                        struct spdk_dif_ctx *dif_ctx)
    4816             : {
    4817             :         struct spdk_nvmf_ns *ns;
    4818             :         struct spdk_bdev *bdev;
    4819             : 
    4820           4 :         if (ctrlr == NULL || cmd == NULL) {
    4821           0 :                 return false;
    4822             :         }
    4823             : 
    4824           4 :         ns = nvmf_ctrlr_get_ns(ctrlr, cmd->nsid);
    4825           4 :         if (ns == NULL || ns->bdev == NULL) {
    4826           2 :                 return false;
    4827             :         }
    4828             : 
    4829           2 :         bdev = ns->bdev;
    4830             : 
    4831           2 :         switch (cmd->opc) {
    4832           1 :         case SPDK_NVME_OPC_READ:
    4833             :         case SPDK_NVME_OPC_WRITE:
    4834             :         case SPDK_NVME_OPC_COMPARE:
    4835           1 :                 return nvmf_bdev_ctrlr_get_dif_ctx(bdev, cmd, dif_ctx);
    4836           1 :         default:
    4837           1 :                 break;
    4838             :         }
    4839             : 
    4840           1 :         return false;
    4841             : }
    4842             : 
    4843             : bool
    4844          12 : spdk_nvmf_request_get_dif_ctx(struct spdk_nvmf_request *req, struct spdk_dif_ctx *dif_ctx)
    4845             : {
    4846          12 :         struct spdk_nvmf_qpair *qpair = req->qpair;
    4847          12 :         struct spdk_nvmf_ctrlr *ctrlr = qpair->ctrlr;
    4848             : 
    4849          12 :         if (spdk_likely(ctrlr == NULL || !ctrlr->dif_insert_or_strip)) {
    4850           5 :                 return false;
    4851             :         }
    4852             : 
    4853           7 :         if (spdk_unlikely(!spdk_nvmf_qpair_is_active(qpair))) {
    4854           1 :                 return false;
    4855             :         }
    4856             : 
    4857           6 :         if (spdk_unlikely(req->cmd->nvmf_cmd.opcode == SPDK_NVME_OPC_FABRIC)) {
    4858           1 :                 return false;
    4859             :         }
    4860             : 
    4861           5 :         if (spdk_unlikely(nvmf_qpair_is_admin_queue(qpair))) {
    4862           1 :                 return false;
    4863             :         }
    4864             : 
    4865           4 :         return nvmf_ctrlr_get_dif_ctx(ctrlr, &req->cmd->nvme_cmd, dif_ctx);
    4866             : }
    4867             : 
    4868             : void
    4869           1 : spdk_nvmf_set_custom_admin_cmd_hdlr(uint8_t opc, spdk_nvmf_custom_cmd_hdlr hdlr)
    4870             : {
    4871           1 :         g_nvmf_custom_admin_cmd_hdlrs[opc].hdlr = hdlr;
    4872           1 : }
    4873             : 
    4874             : static int
    4875           0 : nvmf_passthru_admin_cmd_for_bdev_nsid(struct spdk_nvmf_request *req, uint32_t bdev_nsid)
    4876             : {
    4877           0 :         struct spdk_bdev *bdev;
    4878           0 :         struct spdk_bdev_desc *desc;
    4879           0 :         struct spdk_io_channel *ch;
    4880           0 :         struct spdk_nvme_cpl *response = spdk_nvmf_request_get_response(req);
    4881             :         int rc;
    4882             : 
    4883           0 :         rc = spdk_nvmf_request_get_bdev(bdev_nsid, req, &bdev, &desc, &ch);
    4884           0 :         if (rc) {
    4885           0 :                 response->status.sct = SPDK_NVME_SCT_GENERIC;
    4886           0 :                 response->status.sc = SPDK_NVME_SC_INVALID_NAMESPACE_OR_FORMAT;
    4887           0 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    4888             :         }
    4889           0 :         return spdk_nvmf_bdev_ctrlr_nvme_passthru_admin(bdev, desc, ch, req, NULL);
    4890             : }
    4891             : 
    4892             : static int
    4893           0 : nvmf_passthru_admin_cmd(struct spdk_nvmf_request *req)
    4894             : {
    4895           0 :         struct spdk_nvme_cmd *cmd = spdk_nvmf_request_get_cmd(req);
    4896             :         uint32_t bdev_nsid;
    4897             : 
    4898           0 :         if (g_nvmf_custom_admin_cmd_hdlrs[cmd->opc].nsid != 0) {
    4899           0 :                 bdev_nsid = g_nvmf_custom_admin_cmd_hdlrs[cmd->opc].nsid;
    4900             :         } else {
    4901           0 :                 bdev_nsid = cmd->nsid;
    4902             :         }
    4903             : 
    4904           0 :         return nvmf_passthru_admin_cmd_for_bdev_nsid(req, bdev_nsid);
    4905             : }
    4906             : 
    4907             : int
    4908           0 : nvmf_passthru_admin_cmd_for_ctrlr(struct spdk_nvmf_request *req, struct spdk_nvmf_ctrlr *ctrlr)
    4909             : {
    4910           0 :         struct spdk_nvme_cpl *response = spdk_nvmf_request_get_response(req);
    4911             :         struct spdk_nvmf_ns *ns;
    4912             : 
    4913           0 :         ns = spdk_nvmf_subsystem_get_first_ns(ctrlr->subsys);
    4914           0 :         if (ns == NULL) {
    4915             :                 /* Is there a better sc to use here? */
    4916           0 :                 response->status.sct = SPDK_NVME_SCT_GENERIC;
    4917           0 :                 response->status.sc = SPDK_NVME_SC_INVALID_NAMESPACE_OR_FORMAT;
    4918           0 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    4919             :         }
    4920             : 
    4921           0 :         return nvmf_passthru_admin_cmd_for_bdev_nsid(req, ns->nsid);
    4922             : }
    4923             : 
    4924             : void
    4925           0 : spdk_nvmf_set_passthru_admin_cmd(uint8_t opc, uint32_t forward_nsid)
    4926             : {
    4927           0 :         g_nvmf_custom_admin_cmd_hdlrs[opc].hdlr = nvmf_passthru_admin_cmd;
    4928           0 :         g_nvmf_custom_admin_cmd_hdlrs[opc].nsid = forward_nsid;
    4929           0 : }
    4930             : 
    4931             : int
    4932           0 : spdk_nvmf_request_get_bdev(uint32_t nsid, struct spdk_nvmf_request *req,
    4933             :                            struct spdk_bdev **bdev, struct spdk_bdev_desc **desc, struct spdk_io_channel **ch)
    4934             : {
    4935           0 :         struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
    4936             :         struct spdk_nvmf_ns *ns;
    4937           0 :         struct spdk_nvmf_poll_group *group = req->qpair->group;
    4938             :         struct spdk_nvmf_subsystem_pg_ns_info *ns_info;
    4939             : 
    4940           0 :         *bdev = NULL;
    4941           0 :         *desc = NULL;
    4942           0 :         *ch = NULL;
    4943             : 
    4944           0 :         ns = nvmf_ctrlr_get_ns(ctrlr, nsid);
    4945           0 :         if (ns == NULL || ns->bdev == NULL) {
    4946           0 :                 return -EINVAL;
    4947             :         }
    4948             : 
    4949           0 :         assert(group != NULL && group->sgroups != NULL);
    4950           0 :         ns_info = &group->sgroups[ctrlr->subsys->id].ns_info[nsid - 1];
    4951           0 :         *bdev = ns->bdev;
    4952           0 :         *desc = ns->desc;
    4953           0 :         *ch = ns_info->channel;
    4954             : 
    4955           0 :         return 0;
    4956             : }
    4957             : 
    4958           0 : struct spdk_nvmf_ctrlr *spdk_nvmf_request_get_ctrlr(struct spdk_nvmf_request *req)
    4959             : {
    4960           0 :         return req->qpair->ctrlr;
    4961             : }
    4962             : 
    4963           0 : struct spdk_nvme_cmd *spdk_nvmf_request_get_cmd(struct spdk_nvmf_request *req)
    4964             : {
    4965           0 :         return &req->cmd->nvme_cmd;
    4966             : }
    4967             : 
    4968           0 : struct spdk_nvme_cpl *spdk_nvmf_request_get_response(struct spdk_nvmf_request *req)
    4969             : {
    4970           0 :         return &req->rsp->nvme_cpl;
    4971             : }
    4972             : 
    4973           0 : struct spdk_nvmf_subsystem *spdk_nvmf_request_get_subsystem(struct spdk_nvmf_request *req)
    4974             : {
    4975           0 :         return req->qpair->ctrlr->subsys;
    4976             : }
    4977             : 
    4978             : size_t
    4979           0 : spdk_nvmf_request_copy_from_buf(struct spdk_nvmf_request *req,
    4980             :                                 void *buf, size_t buflen)
    4981             : {
    4982           0 :         struct spdk_iov_xfer ix;
    4983             : 
    4984           0 :         spdk_iov_xfer_init(&ix, req->iov, req->iovcnt);
    4985           0 :         return spdk_iov_xfer_from_buf(&ix, buf, buflen);
    4986             : }
    4987             : 
    4988             : size_t
    4989           0 : spdk_nvmf_request_copy_to_buf(struct spdk_nvmf_request *req,
    4990             :                               void *buf, size_t buflen)
    4991             : {
    4992           0 :         struct spdk_iov_xfer ix;
    4993             : 
    4994           0 :         spdk_iov_xfer_init(&ix, req->iov, req->iovcnt);
    4995           0 :         return spdk_iov_xfer_to_buf(&ix, buf, buflen);
    4996             : }
    4997             : 
    4998           0 : struct spdk_nvmf_subsystem *spdk_nvmf_ctrlr_get_subsystem(struct spdk_nvmf_ctrlr *ctrlr)
    4999             : {
    5000           0 :         return ctrlr->subsys;
    5001             : }
    5002             : 
    5003             : uint16_t
    5004           0 : spdk_nvmf_ctrlr_get_id(struct spdk_nvmf_ctrlr *ctrlr)
    5005             : {
    5006           0 :         return ctrlr->cntlid;
    5007             : }
    5008             : 
    5009           0 : struct spdk_nvmf_request *spdk_nvmf_request_get_req_to_abort(struct spdk_nvmf_request *req)
    5010             : {
    5011           0 :         return req->req_to_abort;
    5012             : }

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