LCOV - code coverage report
Current view: top level - lib/nvmf - ctrlr.c (source / functions) Hit Total Coverage
Test: ut_cov_unit.info Lines: 1380 2558 53.9 %
Date: 2024-07-12 17:22:26 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             :  */
       6             : 
       7             : #include "spdk/stdinc.h"
       8             : 
       9             : #include "nvmf_internal.h"
      10             : #include "transport.h"
      11             : 
      12             : #include "spdk/bdev.h"
      13             : #include "spdk/bdev_zone.h"
      14             : #include "spdk/bit_array.h"
      15             : #include "spdk/endian.h"
      16             : #include "spdk/thread.h"
      17             : #include "spdk/nvme_spec.h"
      18             : #include "spdk/nvmf_cmd.h"
      19             : #include "spdk/string.h"
      20             : #include "spdk/util.h"
      21             : #include "spdk/version.h"
      22             : #include "spdk/log.h"
      23             : #include "spdk_internal/usdt.h"
      24             : 
      25             : #define MIN_KEEP_ALIVE_TIMEOUT_IN_MS 10000
      26             : #define NVMF_DISC_KATO_IN_MS 120000
      27             : #define KAS_TIME_UNIT_IN_MS 100
      28             : #define KAS_DEFAULT_VALUE (MIN_KEEP_ALIVE_TIMEOUT_IN_MS / KAS_TIME_UNIT_IN_MS)
      29             : 
      30             : #define NVMF_CC_RESET_SHN_TIMEOUT_IN_MS 10000
      31             : 
      32             : #define NVMF_CTRLR_RESET_SHN_TIMEOUT_IN_MS      (NVMF_CC_RESET_SHN_TIMEOUT_IN_MS + 5000)
      33             : 
      34             : #define DUPLICATE_QID_RETRY_US 1000
      35             : 
      36             : /*
      37             :  * Report the SPDK version as the firmware revision.
      38             :  * SPDK_VERSION_STRING won't fit into FR (only 8 bytes), so try to fit the most important parts.
      39             :  */
      40             : #define FW_VERSION SPDK_VERSION_MAJOR_STRING SPDK_VERSION_MINOR_STRING SPDK_VERSION_PATCH_STRING
      41             : 
      42             : #define ANA_TRANSITION_TIME_IN_SEC 10
      43             : 
      44             : #define NVMF_ABORT_COMMAND_LIMIT 3
      45             : 
      46             : /*
      47             :  * Support for custom admin command handlers
      48             :  */
      49             : struct spdk_nvmf_custom_admin_cmd {
      50             :         spdk_nvmf_custom_cmd_hdlr hdlr;
      51             :         uint32_t nsid; /* nsid to forward */
      52             : };
      53             : 
      54             : static struct spdk_nvmf_custom_admin_cmd g_nvmf_custom_admin_cmd_hdlrs[SPDK_NVME_MAX_OPC + 1];
      55             : 
      56             : static void _nvmf_request_complete(void *ctx);
      57             : int nvmf_passthru_admin_cmd_for_ctrlr(struct spdk_nvmf_request *req, struct spdk_nvmf_ctrlr *ctrlr);
      58             : 
      59             : static inline void
      60          13 : nvmf_invalid_connect_response(struct spdk_nvmf_fabric_connect_rsp *rsp,
      61             :                               uint8_t iattr, uint16_t ipo)
      62             : {
      63          13 :         rsp->status.sct = SPDK_NVME_SCT_COMMAND_SPECIFIC;
      64          13 :         rsp->status.sc = SPDK_NVMF_FABRIC_SC_INVALID_PARAM;
      65          13 :         rsp->status_code_specific.invalid.iattr = iattr;
      66          13 :         rsp->status_code_specific.invalid.ipo = ipo;
      67          13 : }
      68             : 
      69             : #define SPDK_NVMF_INVALID_CONNECT_CMD(rsp, field)       \
      70             :         nvmf_invalid_connect_response(rsp, 0, offsetof(struct spdk_nvmf_fabric_connect_cmd, field))
      71             : #define SPDK_NVMF_INVALID_CONNECT_DATA(rsp, field)      \
      72             :         nvmf_invalid_connect_response(rsp, 1, offsetof(struct spdk_nvmf_fabric_connect_data, field))
      73             : 
      74             : 
      75             : static void
      76           4 : nvmf_ctrlr_stop_keep_alive_timer(struct spdk_nvmf_ctrlr *ctrlr)
      77             : {
      78           4 :         if (!ctrlr) {
      79           0 :                 SPDK_ERRLOG("Controller is NULL\n");
      80           0 :                 return;
      81             :         }
      82             : 
      83           4 :         if (ctrlr->keep_alive_poller == NULL) {
      84           0 :                 return;
      85             :         }
      86             : 
      87           4 :         SPDK_DEBUGLOG(nvmf, "Stop keep alive poller\n");
      88           4 :         spdk_poller_unregister(&ctrlr->keep_alive_poller);
      89             : }
      90             : 
      91             : static void
      92           1 : nvmf_ctrlr_stop_association_timer(struct spdk_nvmf_ctrlr *ctrlr)
      93             : {
      94           1 :         if (!ctrlr) {
      95           0 :                 SPDK_ERRLOG("Controller is NULL\n");
      96           0 :                 assert(false);
      97             :                 return;
      98             :         }
      99             : 
     100           1 :         if (ctrlr->association_timer == NULL) {
     101           1 :                 return;
     102             :         }
     103             : 
     104           0 :         SPDK_DEBUGLOG(nvmf, "Stop association timer\n");
     105           0 :         spdk_poller_unregister(&ctrlr->association_timer);
     106             : }
     107             : 
     108             : static void
     109           0 : nvmf_ctrlr_disconnect_qpairs_done(struct spdk_io_channel_iter *i, int status)
     110             : {
     111           0 :         if (status == 0) {
     112           0 :                 SPDK_DEBUGLOG(nvmf, "ctrlr disconnect qpairs complete successfully\n");
     113             :         } else {
     114           0 :                 SPDK_ERRLOG("Fail to disconnect ctrlr qpairs\n");
     115             :         }
     116           0 : }
     117             : 
     118             : static int
     119           0 : _nvmf_ctrlr_disconnect_qpairs_on_pg(struct spdk_io_channel_iter *i, bool include_admin)
     120             : {
     121           0 :         int rc = 0;
     122             :         struct spdk_nvmf_ctrlr *ctrlr;
     123             :         struct spdk_nvmf_qpair *qpair, *temp_qpair;
     124             :         struct spdk_io_channel *ch;
     125             :         struct spdk_nvmf_poll_group *group;
     126             : 
     127           0 :         ctrlr = spdk_io_channel_iter_get_ctx(i);
     128           0 :         ch = spdk_io_channel_iter_get_channel(i);
     129           0 :         group = spdk_io_channel_get_ctx(ch);
     130             : 
     131           0 :         TAILQ_FOREACH_SAFE(qpair, &group->qpairs, link, temp_qpair) {
     132           0 :                 if (qpair->ctrlr == ctrlr && (include_admin || !nvmf_qpair_is_admin_queue(qpair))) {
     133           0 :                         rc = spdk_nvmf_qpair_disconnect(qpair);
     134           0 :                         if (rc) {
     135           0 :                                 if (rc == -EINPROGRESS) {
     136           0 :                                         rc = 0;
     137             :                                 } else {
     138           0 :                                         SPDK_ERRLOG("Qpair disconnect failed\n");
     139           0 :                                         return rc;
     140             :                                 }
     141             :                         }
     142             :                 }
     143             :         }
     144             : 
     145           0 :         return rc;
     146             : }
     147             : 
     148             : static void
     149           0 : nvmf_ctrlr_disconnect_qpairs_on_pg(struct spdk_io_channel_iter *i)
     150             : {
     151           0 :         spdk_for_each_channel_continue(i, _nvmf_ctrlr_disconnect_qpairs_on_pg(i, true));
     152           0 : }
     153             : 
     154             : static void
     155           0 : nvmf_ctrlr_disconnect_io_qpairs_on_pg(struct spdk_io_channel_iter *i)
     156             : {
     157           0 :         spdk_for_each_channel_continue(i, _nvmf_ctrlr_disconnect_qpairs_on_pg(i, false));
     158           0 : }
     159             : 
     160             : static int
     161           0 : nvmf_ctrlr_keep_alive_poll(void *ctx)
     162             : {
     163             :         uint64_t keep_alive_timeout_tick;
     164           0 :         uint64_t now = spdk_get_ticks();
     165           0 :         struct spdk_nvmf_ctrlr *ctrlr = ctx;
     166             : 
     167           0 :         if (ctrlr->in_destruct) {
     168           0 :                 nvmf_ctrlr_stop_keep_alive_timer(ctrlr);
     169           0 :                 return SPDK_POLLER_IDLE;
     170             :         }
     171             : 
     172           0 :         SPDK_DEBUGLOG(nvmf, "Polling ctrlr keep alive timeout\n");
     173             : 
     174             :         /* If the Keep alive feature is in use and the timer expires */
     175           0 :         keep_alive_timeout_tick = ctrlr->last_keep_alive_tick +
     176           0 :                                   ctrlr->feat.keep_alive_timer.bits.kato * spdk_get_ticks_hz() / UINT64_C(1000);
     177           0 :         if (now > keep_alive_timeout_tick) {
     178           0 :                 SPDK_NOTICELOG("Disconnecting host %s from subsystem %s due to keep alive timeout.\n",
     179             :                                ctrlr->hostnqn, ctrlr->subsys->subnqn);
     180             :                 /* set the Controller Fatal Status bit to '1' */
     181           0 :                 if (ctrlr->vcprop.csts.bits.cfs == 0) {
     182           0 :                         nvmf_ctrlr_set_fatal_status(ctrlr);
     183             : 
     184             :                         /*
     185             :                          * disconnect qpairs, terminate Transport connection
     186             :                          * destroy ctrlr, break the host to controller association
     187             :                          * disconnect qpairs with qpair->ctrlr == ctrlr
     188             :                          */
     189           0 :                         spdk_for_each_channel(ctrlr->subsys->tgt,
     190             :                                               nvmf_ctrlr_disconnect_qpairs_on_pg,
     191             :                                               ctrlr,
     192             :                                               nvmf_ctrlr_disconnect_qpairs_done);
     193           0 :                         return SPDK_POLLER_BUSY;
     194             :                 }
     195             :         }
     196             : 
     197           0 :         return SPDK_POLLER_IDLE;
     198             : }
     199             : 
     200             : static void
     201           5 : nvmf_ctrlr_start_keep_alive_timer(struct spdk_nvmf_ctrlr *ctrlr)
     202             : {
     203           5 :         if (!ctrlr) {
     204           0 :                 SPDK_ERRLOG("Controller is NULL\n");
     205           0 :                 return;
     206             :         }
     207             : 
     208             :         /* if cleared to 0 then the Keep Alive Timer is disabled */
     209           5 :         if (ctrlr->feat.keep_alive_timer.bits.kato != 0) {
     210             : 
     211           4 :                 ctrlr->last_keep_alive_tick = spdk_get_ticks();
     212             : 
     213           4 :                 SPDK_DEBUGLOG(nvmf, "Ctrlr add keep alive poller\n");
     214           4 :                 ctrlr->keep_alive_poller = SPDK_POLLER_REGISTER(nvmf_ctrlr_keep_alive_poll, ctrlr,
     215             :                                            ctrlr->feat.keep_alive_timer.bits.kato * 1000);
     216             :         }
     217             : }
     218             : 
     219             : static void
     220          14 : nvmf_qpair_set_ctrlr(struct spdk_nvmf_qpair *qpair, struct spdk_nvmf_ctrlr *ctrlr)
     221             : {
     222          14 :         if (qpair->ctrlr != NULL) {
     223             :                 /* Admin queues will call this function twice. */
     224           6 :                 assert(qpair->ctrlr == ctrlr);
     225           6 :                 return;
     226             :         }
     227             : 
     228           8 :         qpair->ctrlr = ctrlr;
     229           8 :         spdk_trace_owner_append_description(qpair->trace_id,
     230           8 :                                             spdk_nvmf_subsystem_get_nqn(ctrlr->subsys));
     231             : }
     232             : 
     233             : static int _retry_qid_check(void *ctx);
     234             : 
     235             : static void
     236           7 : nvmf_ctrlr_send_connect_rsp(void *ctx)
     237             : {
     238           7 :         struct spdk_nvmf_request *req = ctx;
     239           7 :         struct spdk_nvmf_qpair *qpair = req->qpair;
     240           7 :         struct spdk_nvmf_ctrlr *ctrlr = qpair->ctrlr;
     241           7 :         struct spdk_nvmf_fabric_connect_rsp *rsp = &req->rsp->connect_rsp;
     242             :         int rc;
     243             : 
     244             :         /* The qpair might have been disconnected in the meantime */
     245           7 :         assert(qpair->state == SPDK_NVMF_QPAIR_CONNECTING ||
     246             :                qpair->state == SPDK_NVMF_QPAIR_DEACTIVATING);
     247           7 :         if (qpair->state == SPDK_NVMF_QPAIR_CONNECTING) {
     248           7 :                 if (nvmf_subsystem_host_auth_required(ctrlr->subsys, ctrlr->hostnqn)) {
     249           0 :                         rc = nvmf_qpair_auth_init(qpair);
     250           0 :                         if (rc != 0) {
     251           0 :                                 rsp->status.sct = SPDK_NVME_SCT_GENERIC;
     252           0 :                                 rsp->status.sc = SPDK_NVME_SC_INTERNAL_DEVICE_ERROR;
     253           0 :                                 spdk_nvmf_request_complete(req);
     254           0 :                                 spdk_nvmf_qpair_disconnect(qpair);
     255           0 :                                 return;
     256             :                         }
     257           0 :                         rsp->status_code_specific.success.authreq.atr = 1;
     258           0 :                         nvmf_qpair_set_state(qpair, SPDK_NVMF_QPAIR_AUTHENTICATING);
     259             :                 } else {
     260           7 :                         nvmf_qpair_set_state(qpair, SPDK_NVMF_QPAIR_ENABLED);
     261             :                 }
     262             :         }
     263             : 
     264           7 :         SPDK_DEBUGLOG(nvmf, "connect capsule response: cntlid = 0x%04x\n", ctrlr->cntlid);
     265             : 
     266           7 :         assert(spdk_get_thread() == qpair->group->thread);
     267           7 :         rsp->status.sc = SPDK_NVME_SC_SUCCESS;
     268           7 :         rsp->status_code_specific.success.cntlid = ctrlr->cntlid;
     269           7 :         spdk_nvmf_request_complete(req);
     270             : }
     271             : 
     272             : static void
     273          10 : nvmf_ctrlr_add_qpair(struct spdk_nvmf_qpair *qpair,
     274             :                      struct spdk_nvmf_ctrlr *ctrlr,
     275             :                      struct spdk_nvmf_request *req)
     276             : {
     277          10 :         struct spdk_nvmf_fabric_connect_rsp *rsp = &req->rsp->connect_rsp;
     278             : 
     279          10 :         if (!ctrlr->admin_qpair) {
     280           0 :                 SPDK_ERRLOG("Inactive admin qpair\n");
     281           0 :                 rsp->status.sct = SPDK_NVME_SCT_COMMAND_SPECIFIC;
     282           0 :                 rsp->status.sc = SPDK_NVMF_FABRIC_SC_INVALID_PARAM;
     283           0 :                 qpair->connect_req = NULL;
     284           0 :                 qpair->ctrlr = NULL;
     285           0 :                 spdk_nvmf_request_complete(req);
     286           0 :                 return;
     287             :         }
     288             : 
     289          10 :         assert(ctrlr->admin_qpair->group->thread == spdk_get_thread());
     290             : 
     291          10 :         if (spdk_bit_array_get(ctrlr->qpair_mask, qpair->qid)) {
     292           3 :                 if (qpair->connect_req != NULL) {
     293           1 :                         SPDK_ERRLOG("Got I/O connect with duplicate QID %u\n", qpair->qid);
     294           1 :                         rsp->status.sct = SPDK_NVME_SCT_COMMAND_SPECIFIC;
     295           1 :                         rsp->status.sc = SPDK_NVME_SC_INVALID_QUEUE_IDENTIFIER;
     296           1 :                         qpair->connect_req = NULL;
     297           1 :                         qpair->ctrlr = NULL;
     298           1 :                         spdk_nvmf_request_complete(req);
     299             :                 } else {
     300           2 :                         SPDK_WARNLOG("Duplicate QID detected, re-check in %dus\n",
     301             :                                      DUPLICATE_QID_RETRY_US);
     302           2 :                         qpair->connect_req = req;
     303             :                         /* Set qpair->ctrlr here so that we'll have it when the poller expires. */
     304           2 :                         nvmf_qpair_set_ctrlr(qpair, ctrlr);
     305           2 :                         req->poller = SPDK_POLLER_REGISTER(_retry_qid_check, qpair,
     306             :                                                            DUPLICATE_QID_RETRY_US);
     307             :                 }
     308           3 :                 return;
     309             :         }
     310             : 
     311             :         SPDK_DTRACE_PROBE4_TICKS(nvmf_ctrlr_add_qpair, qpair, qpair->qid, ctrlr->subsys->subnqn,
     312             :                                  ctrlr->hostnqn);
     313           7 :         nvmf_qpair_set_ctrlr(qpair, ctrlr);
     314           7 :         spdk_bit_array_set(ctrlr->qpair_mask, qpair->qid);
     315             : 
     316           7 :         spdk_thread_send_msg(qpair->group->thread, nvmf_ctrlr_send_connect_rsp, req);
     317             : }
     318             : 
     319             : static int
     320           2 : _retry_qid_check(void *ctx)
     321             : {
     322           2 :         struct spdk_nvmf_qpair *qpair = ctx;
     323           2 :         struct spdk_nvmf_request *req = qpair->connect_req;
     324           2 :         struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
     325             : 
     326           2 :         spdk_poller_unregister(&req->poller);
     327           2 :         nvmf_ctrlr_add_qpair(qpair, ctrlr, req);
     328           2 :         return SPDK_POLLER_BUSY;
     329             : }
     330             : 
     331             : static void
     332           5 : _nvmf_ctrlr_add_admin_qpair(void *ctx)
     333             : {
     334           5 :         struct spdk_nvmf_request *req = ctx;
     335           5 :         struct spdk_nvmf_qpair *qpair = req->qpair;
     336           5 :         struct spdk_nvmf_ctrlr *ctrlr = qpair->ctrlr;
     337             : 
     338           5 :         ctrlr->admin_qpair = qpair;
     339           5 :         ctrlr->association_timeout = qpair->transport->opts.association_timeout;
     340           5 :         nvmf_ctrlr_start_keep_alive_timer(ctrlr);
     341           5 :         nvmf_ctrlr_add_qpair(qpair, ctrlr, req);
     342           5 : }
     343             : 
     344             : static void
     345           5 : _nvmf_subsystem_add_ctrlr(void *ctx)
     346             : {
     347           5 :         struct spdk_nvmf_request *req = ctx;
     348           5 :         struct spdk_nvmf_qpair *qpair = req->qpair;
     349           5 :         struct spdk_nvmf_fabric_connect_rsp *rsp = &req->rsp->connect_rsp;
     350           5 :         struct spdk_nvmf_ctrlr *ctrlr = qpair->ctrlr;
     351             : 
     352           5 :         if (nvmf_subsystem_add_ctrlr(ctrlr->subsys, ctrlr)) {
     353           0 :                 SPDK_ERRLOG("Unable to add controller to subsystem\n");
     354           0 :                 spdk_bit_array_free(&ctrlr->qpair_mask);
     355           0 :                 free(ctrlr);
     356           0 :                 qpair->ctrlr = NULL;
     357           0 :                 rsp->status.sc = SPDK_NVME_SC_INTERNAL_DEVICE_ERROR;
     358           0 :                 spdk_nvmf_request_complete(req);
     359           0 :                 return;
     360             :         }
     361             : 
     362           5 :         spdk_thread_send_msg(ctrlr->thread, _nvmf_ctrlr_add_admin_qpair, req);
     363             : }
     364             : 
     365             : static void
     366           6 : nvmf_ctrlr_cdata_init(struct spdk_nvmf_transport *transport, struct spdk_nvmf_subsystem *subsystem,
     367             :                       struct spdk_nvmf_ctrlr_data *cdata)
     368             : {
     369           6 :         cdata->aerl = SPDK_NVMF_MAX_ASYNC_EVENTS - 1;
     370           6 :         cdata->kas = KAS_DEFAULT_VALUE;
     371           6 :         cdata->vid = SPDK_PCI_VID_INTEL;
     372           6 :         cdata->ssvid = SPDK_PCI_VID_INTEL;
     373             :         /* INTEL OUI */
     374           6 :         cdata->ieee[0] = 0xe4;
     375           6 :         cdata->ieee[1] = 0xd2;
     376           6 :         cdata->ieee[2] = 0x5c;
     377           6 :         cdata->oncs.compare = 1;
     378           6 :         cdata->oncs.reservations = 1;
     379           6 :         cdata->fuses.compare_and_write = 1;
     380           6 :         cdata->oncs.copy = 1;
     381           6 :         cdata->sgls.supported = 1;
     382           6 :         cdata->sgls.keyed_sgl = 1;
     383           6 :         cdata->sgls.sgl_offset = 1;
     384           6 :         cdata->nvmf_specific.ioccsz = sizeof(struct spdk_nvme_cmd) / 16;
     385           6 :         cdata->nvmf_specific.ioccsz += transport->opts.in_capsule_data_size / 16;
     386           6 :         cdata->nvmf_specific.iorcsz = sizeof(struct spdk_nvme_cpl) / 16;
     387           6 :         cdata->nvmf_specific.icdoff = 0; /* offset starts directly after SQE */
     388           6 :         cdata->nvmf_specific.ctrattr.ctrlr_model = SPDK_NVMF_CTRLR_MODEL_DYNAMIC;
     389           6 :         cdata->nvmf_specific.msdbd = 1;
     390             : 
     391           6 :         if (transport->ops->cdata_init) {
     392           0 :                 transport->ops->cdata_init(transport, subsystem, cdata);
     393             :         }
     394           6 : }
     395             : 
     396             : static bool
     397           5 : nvmf_subsys_has_multi_iocs(struct spdk_nvmf_subsystem *subsystem)
     398             : {
     399             :         struct spdk_nvmf_ns *ns;
     400             :         uint32_t i;
     401             : 
     402           9 :         for (i = 0; i < subsystem->max_nsid; i++) {
     403           4 :                 ns = subsystem->ns[i];
     404           4 :                 if (ns && ns->bdev && spdk_bdev_is_zoned(ns->bdev)) {
     405           0 :                         return true;
     406             :                 }
     407             :         }
     408           5 :         return false;
     409             : }
     410             : 
     411             : static void
     412           9 : nvmf_ctrlr_init_visible_ns(struct spdk_nvmf_ctrlr *ctrlr)
     413             : {
     414           9 :         struct spdk_nvmf_subsystem *subsystem = ctrlr->subsys;
     415             :         struct spdk_nvmf_ns *ns;
     416             : 
     417          17 :         for (ns = spdk_nvmf_subsystem_get_first_ns(subsystem); ns != NULL;
     418           8 :              ns = spdk_nvmf_subsystem_get_next_ns(subsystem, ns)) {
     419           8 :                 if (ns->always_visible || nvmf_ns_find_host(ns, ctrlr->hostnqn) != NULL) {
     420           3 :                         spdk_bit_array_set(ctrlr->visible_ns, ns->nsid - 1);
     421             :                 }
     422             :         }
     423           9 : }
     424             : 
     425             : static struct spdk_nvmf_ctrlr *
     426           5 : nvmf_ctrlr_create(struct spdk_nvmf_subsystem *subsystem,
     427             :                   struct spdk_nvmf_request *req,
     428             :                   struct spdk_nvmf_fabric_connect_cmd *connect_cmd,
     429             :                   struct spdk_nvmf_fabric_connect_data *connect_data)
     430             : {
     431             :         struct spdk_nvmf_ctrlr *ctrlr;
     432           5 :         struct spdk_nvmf_transport *transport = req->qpair->transport;
     433           5 :         struct spdk_nvme_transport_id listen_trid = {};
     434           5 :         bool subsys_has_multi_iocs = false;
     435             : 
     436           5 :         ctrlr = calloc(1, sizeof(*ctrlr));
     437           5 :         if (ctrlr == NULL) {
     438           0 :                 SPDK_ERRLOG("Memory allocation failed\n");
     439           0 :                 return NULL;
     440             :         }
     441             : 
     442           5 :         if (spdk_nvme_trtype_is_fabrics(transport->ops->type)) {
     443           5 :                 ctrlr->dynamic_ctrlr = true;
     444             :         } else {
     445           0 :                 ctrlr->cntlid = connect_data->cntlid;
     446             :         }
     447             : 
     448             :         SPDK_DTRACE_PROBE3_TICKS(nvmf_ctrlr_create, ctrlr, subsystem->subnqn,
     449             :                                  spdk_thread_get_id(req->qpair->group->thread));
     450             : 
     451           5 :         STAILQ_INIT(&ctrlr->async_events);
     452           5 :         TAILQ_INIT(&ctrlr->log_head);
     453           5 :         ctrlr->subsys = subsystem;
     454           5 :         ctrlr->thread = req->qpair->group->thread;
     455           5 :         ctrlr->disconnect_in_progress = false;
     456             : 
     457           5 :         ctrlr->qpair_mask = spdk_bit_array_create(transport->opts.max_qpairs_per_ctrlr);
     458           5 :         if (!ctrlr->qpair_mask) {
     459           0 :                 SPDK_ERRLOG("Failed to allocate controller qpair mask\n");
     460           0 :                 goto err_qpair_mask;
     461             :         }
     462             : 
     463           5 :         nvmf_ctrlr_cdata_init(transport, subsystem, &ctrlr->cdata);
     464             : 
     465             :         /*
     466             :          * KAS: This field indicates the granularity of the Keep Alive Timer in 100ms units.
     467             :          * If this field is cleared to 0h, then Keep Alive is not supported.
     468             :          */
     469           5 :         if (ctrlr->cdata.kas) {
     470           5 :                 ctrlr->feat.keep_alive_timer.bits.kato = spdk_divide_round_up(connect_cmd->kato,
     471             :                                 KAS_DEFAULT_VALUE * KAS_TIME_UNIT_IN_MS) *
     472             :                                 KAS_DEFAULT_VALUE * KAS_TIME_UNIT_IN_MS;
     473             :         }
     474             : 
     475           5 :         ctrlr->feat.async_event_configuration.bits.ns_attr_notice = 1;
     476           5 :         if (ctrlr->subsys->flags.ana_reporting) {
     477           0 :                 ctrlr->feat.async_event_configuration.bits.ana_change_notice = 1;
     478             :         }
     479           5 :         ctrlr->feat.volatile_write_cache.bits.wce = 1;
     480             :         /* Coalescing Disable */
     481           5 :         ctrlr->feat.interrupt_vector_configuration.bits.cd = 1;
     482             : 
     483           5 :         if (spdk_nvmf_subsystem_is_discovery(ctrlr->subsys)) {
     484             :                 /*
     485             :                  * If keep-alive timeout is not set, discovery controllers use some
     486             :                  * arbitrary high value in order to cleanup stale discovery sessions
     487             :                  *
     488             :                  * From the 1.0a nvme-of spec:
     489             :                  * "The Keep Alive command is reserved for
     490             :                  * Discovery controllers. A transport may specify a
     491             :                  * fixed Discovery controller activity timeout value
     492             :                  * (e.g., 2 minutes). If no commands are received
     493             :                  * by a Discovery controller within that time
     494             :                  * period, the controller may perform the
     495             :                  * actions for Keep Alive Timer expiration".
     496             :                  *
     497             :                  * From the 1.1 nvme-of spec:
     498             :                  * "A host requests an explicit persistent connection
     499             :                  * to a Discovery controller and Asynchronous Event Notifications from
     500             :                  * the Discovery controller on that persistent connection by specifying
     501             :                  * a non-zero Keep Alive Timer value in the Connect command."
     502             :                  *
     503             :                  * In case non-zero KATO is used, we enable discovery_log_change_notice
     504             :                  * otherwise we disable it and use default discovery controller KATO.
     505             :                  * KATO is in millisecond.
     506             :                  */
     507           2 :                 if (ctrlr->feat.keep_alive_timer.bits.kato == 0) {
     508           1 :                         ctrlr->feat.keep_alive_timer.bits.kato = NVMF_DISC_KATO_IN_MS;
     509           1 :                         ctrlr->feat.async_event_configuration.bits.discovery_log_change_notice = 0;
     510             :                 } else {
     511           1 :                         ctrlr->feat.async_event_configuration.bits.discovery_log_change_notice = 1;
     512             :                 }
     513             :         }
     514             : 
     515             :         /* Subtract 1 for admin queue, 1 for 0's based */
     516           5 :         ctrlr->feat.number_of_queues.bits.ncqr = transport->opts.max_qpairs_per_ctrlr - 1 -
     517             :                         1;
     518           5 :         ctrlr->feat.number_of_queues.bits.nsqr = transport->opts.max_qpairs_per_ctrlr - 1 -
     519             :                         1;
     520             : 
     521           5 :         spdk_uuid_copy(&ctrlr->hostid, (struct spdk_uuid *)connect_data->hostid);
     522           5 :         memcpy(ctrlr->hostnqn, connect_data->hostnqn, SPDK_NVMF_NQN_MAX_LEN);
     523             : 
     524           5 :         ctrlr->visible_ns = spdk_bit_array_create(subsystem->max_nsid);
     525           5 :         if (!ctrlr->visible_ns) {
     526           0 :                 SPDK_ERRLOG("Failed to allocate visible namespace array\n");
     527           0 :                 goto err_visible_ns;
     528             :         }
     529           5 :         nvmf_ctrlr_init_visible_ns(ctrlr);
     530             : 
     531           5 :         ctrlr->vcprop.cap.raw = 0;
     532           5 :         ctrlr->vcprop.cap.bits.cqr = 1; /* NVMe-oF specification required */
     533           5 :         ctrlr->vcprop.cap.bits.mqes = transport->opts.max_queue_depth -
     534             :                                       1; /* max queue depth */
     535           5 :         ctrlr->vcprop.cap.bits.ams = 0; /* optional arb mechanisms */
     536             :         /* ready timeout - 500 msec units */
     537           5 :         ctrlr->vcprop.cap.bits.to = NVMF_CTRLR_RESET_SHN_TIMEOUT_IN_MS / 500;
     538           5 :         ctrlr->vcprop.cap.bits.dstrd = 0; /* fixed to 0 for NVMe-oF */
     539           5 :         subsys_has_multi_iocs = nvmf_subsys_has_multi_iocs(subsystem);
     540           5 :         if (subsys_has_multi_iocs) {
     541           0 :                 ctrlr->vcprop.cap.bits.css =
     542             :                         SPDK_NVME_CAP_CSS_IOCS; /* One or more I/O command sets supported */
     543             :         } else {
     544           5 :                 ctrlr->vcprop.cap.bits.css = SPDK_NVME_CAP_CSS_NVM; /* NVM command set */
     545             :         }
     546             : 
     547           5 :         ctrlr->vcprop.cap.bits.mpsmin = 0; /* 2 ^ (12 + mpsmin) == 4k */
     548           5 :         ctrlr->vcprop.cap.bits.mpsmax = 0; /* 2 ^ (12 + mpsmax) == 4k */
     549             : 
     550             :         /* Version Supported: 1.3 */
     551           5 :         ctrlr->vcprop.vs.bits.mjr = 1;
     552           5 :         ctrlr->vcprop.vs.bits.mnr = 3;
     553           5 :         ctrlr->vcprop.vs.bits.ter = 0;
     554             : 
     555           5 :         ctrlr->vcprop.cc.raw = 0;
     556           5 :         ctrlr->vcprop.cc.bits.en = 0; /* Init controller disabled */
     557           5 :         if (subsys_has_multi_iocs) {
     558           0 :                 ctrlr->vcprop.cc.bits.css =
     559             :                         SPDK_NVME_CC_CSS_IOCS; /* All supported I/O Command Sets */
     560             :         }
     561             : 
     562           5 :         ctrlr->vcprop.csts.raw = 0;
     563           5 :         ctrlr->vcprop.csts.bits.rdy = 0; /* Init controller as not ready */
     564             : 
     565           5 :         SPDK_DEBUGLOG(nvmf, "cap 0x%" PRIx64 "\n", ctrlr->vcprop.cap.raw);
     566           5 :         SPDK_DEBUGLOG(nvmf, "vs 0x%x\n", ctrlr->vcprop.vs.raw);
     567           5 :         SPDK_DEBUGLOG(nvmf, "cc 0x%x\n", ctrlr->vcprop.cc.raw);
     568           5 :         SPDK_DEBUGLOG(nvmf, "csts 0x%x\n", ctrlr->vcprop.csts.raw);
     569             : 
     570           5 :         ctrlr->dif_insert_or_strip = transport->opts.dif_insert_or_strip;
     571             : 
     572           5 :         if (ctrlr->subsys->subtype == SPDK_NVMF_SUBTYPE_NVME) {
     573           3 :                 if (spdk_nvmf_qpair_get_listen_trid(req->qpair, &listen_trid) != 0) {
     574           0 :                         SPDK_ERRLOG("Could not get listener transport ID\n");
     575           0 :                         goto err_listener;
     576             :                 }
     577             : 
     578           3 :                 ctrlr->listener = nvmf_subsystem_find_listener(ctrlr->subsys, &listen_trid);
     579           3 :                 if (!ctrlr->listener) {
     580           0 :                         SPDK_ERRLOG("Listener was not found\n");
     581           0 :                         goto err_listener;
     582             :                 }
     583             :         }
     584             : 
     585           5 :         nvmf_qpair_set_ctrlr(req->qpair, ctrlr);
     586           5 :         spdk_thread_send_msg(subsystem->thread, _nvmf_subsystem_add_ctrlr, req);
     587             : 
     588           5 :         return ctrlr;
     589           0 : err_listener:
     590           0 :         spdk_bit_array_free(&ctrlr->visible_ns);
     591           0 : err_visible_ns:
     592           0 :         spdk_bit_array_free(&ctrlr->qpair_mask);
     593           0 : err_qpair_mask:
     594           0 :         free(ctrlr);
     595           0 :         return NULL;
     596             : }
     597             : 
     598             : static void
     599           1 : _nvmf_ctrlr_destruct(void *ctx)
     600             : {
     601           1 :         struct spdk_nvmf_ctrlr *ctrlr = ctx;
     602             :         struct spdk_nvmf_reservation_log *log, *log_tmp;
     603             :         struct spdk_nvmf_async_event_completion *event, *event_tmp;
     604             : 
     605             :         SPDK_DTRACE_PROBE3_TICKS(nvmf_ctrlr_destruct, ctrlr, ctrlr->subsys->subnqn,
     606             :                                  spdk_thread_get_id(ctrlr->thread));
     607             : 
     608           1 :         assert(spdk_get_thread() == ctrlr->thread);
     609           1 :         assert(ctrlr->in_destruct);
     610             : 
     611           1 :         SPDK_DEBUGLOG(nvmf, "Destroy ctrlr 0x%hx\n", ctrlr->cntlid);
     612           1 :         if (ctrlr->disconnect_in_progress) {
     613           0 :                 SPDK_ERRLOG("freeing ctrlr with disconnect in progress\n");
     614           0 :                 spdk_thread_send_msg(ctrlr->thread, _nvmf_ctrlr_destruct, ctrlr);
     615           0 :                 return;
     616             :         }
     617             : 
     618           1 :         nvmf_ctrlr_stop_keep_alive_timer(ctrlr);
     619           1 :         nvmf_ctrlr_stop_association_timer(ctrlr);
     620           1 :         spdk_bit_array_free(&ctrlr->qpair_mask);
     621             : 
     622           1 :         TAILQ_FOREACH_SAFE(log, &ctrlr->log_head, link, log_tmp) {
     623           0 :                 TAILQ_REMOVE(&ctrlr->log_head, log, link);
     624           0 :                 free(log);
     625             :         }
     626           1 :         STAILQ_FOREACH_SAFE(event, &ctrlr->async_events, link, event_tmp) {
     627           0 :                 STAILQ_REMOVE(&ctrlr->async_events, event, spdk_nvmf_async_event_completion, link);
     628           0 :                 free(event);
     629             :         }
     630           1 :         spdk_bit_array_free(&ctrlr->visible_ns);
     631           1 :         free(ctrlr);
     632             : }
     633             : 
     634             : void
     635           1 : nvmf_ctrlr_destruct(struct spdk_nvmf_ctrlr *ctrlr)
     636             : {
     637           1 :         nvmf_subsystem_remove_ctrlr(ctrlr->subsys, ctrlr);
     638             : 
     639           1 :         spdk_thread_send_msg(ctrlr->thread, _nvmf_ctrlr_destruct, ctrlr);
     640           1 : }
     641             : 
     642             : static void
     643           8 : nvmf_ctrlr_add_io_qpair(void *ctx)
     644             : {
     645           8 :         struct spdk_nvmf_request *req = ctx;
     646           8 :         struct spdk_nvmf_fabric_connect_rsp *rsp = &req->rsp->connect_rsp;
     647           8 :         struct spdk_nvmf_qpair *qpair = req->qpair;
     648           8 :         struct spdk_nvmf_ctrlr *ctrlr = qpair->ctrlr;
     649           8 :         struct spdk_nvmf_qpair *admin_qpair = ctrlr->admin_qpair;
     650           8 :         struct spdk_nvmf_poll_group *admin_qpair_group = NULL;
     651           8 :         enum spdk_nvmf_qpair_state admin_qpair_state = SPDK_NVMF_QPAIR_UNINITIALIZED;
     652           8 :         bool admin_qpair_active = false;
     653             : 
     654             :         SPDK_DTRACE_PROBE4_TICKS(nvmf_ctrlr_add_io_qpair, ctrlr, req->qpair, req->qpair->qid,
     655             :                                  spdk_thread_get_id(ctrlr->thread));
     656             : 
     657             :         /* Unit test will check qpair->ctrlr after calling spdk_nvmf_ctrlr_connect.
     658             :           * For error case, the value should be NULL. So set it to NULL at first.
     659             :           */
     660           8 :         qpair->ctrlr = NULL;
     661             : 
     662             :         /* Make sure the controller is not being destroyed. */
     663           8 :         if (ctrlr->in_destruct) {
     664           0 :                 SPDK_ERRLOG("Got I/O connect while ctrlr was being destroyed.\n");
     665           0 :                 SPDK_NVMF_INVALID_CONNECT_CMD(rsp, qid);
     666           0 :                 goto end;
     667             :         }
     668             : 
     669           8 :         if (spdk_nvmf_subsystem_is_discovery(ctrlr->subsys)) {
     670           1 :                 SPDK_ERRLOG("I/O connect not allowed on discovery controller\n");
     671           1 :                 SPDK_NVMF_INVALID_CONNECT_CMD(rsp, qid);
     672           1 :                 goto end;
     673             :         }
     674             : 
     675           7 :         if (!ctrlr->vcprop.cc.bits.en) {
     676           1 :                 SPDK_ERRLOG("Got I/O connect before ctrlr was enabled\n");
     677           1 :                 SPDK_NVMF_INVALID_CONNECT_CMD(rsp, qid);
     678           1 :                 goto end;
     679             :         }
     680             : 
     681           6 :         if (1u << ctrlr->vcprop.cc.bits.iosqes != sizeof(struct spdk_nvme_cmd)) {
     682           1 :                 SPDK_ERRLOG("Got I/O connect with invalid IOSQES %u\n",
     683             :                             ctrlr->vcprop.cc.bits.iosqes);
     684           1 :                 SPDK_NVMF_INVALID_CONNECT_CMD(rsp, qid);
     685           1 :                 goto end;
     686             :         }
     687             : 
     688           5 :         if (1u << ctrlr->vcprop.cc.bits.iocqes != sizeof(struct spdk_nvme_cpl)) {
     689           1 :                 SPDK_ERRLOG("Got I/O connect with invalid IOCQES %u\n",
     690             :                             ctrlr->vcprop.cc.bits.iocqes);
     691           1 :                 SPDK_NVMF_INVALID_CONNECT_CMD(rsp, qid);
     692           1 :                 goto end;
     693             :         }
     694             : 
     695             :         /* There is a chance that admin qpair was destroyed. This is an issue that was observed only with ESX initiators */
     696           4 :         if (admin_qpair) {
     697           4 :                 admin_qpair_active = spdk_nvmf_qpair_is_active(admin_qpair);
     698           4 :                 admin_qpair_group = admin_qpair->group;
     699           4 :                 admin_qpair_state = admin_qpair->state;
     700             :         }
     701             : 
     702           4 :         if (!admin_qpair_active || admin_qpair_group == NULL) {
     703             :                 /* There is a chance that admin qpair was destroyed or is being destroyed at this moment due to e.g.
     704             :                  * expired keep alive timer. Part of the qpair destruction process is change of qpair's
     705             :                  * state to DEACTIVATING and removing it from poll group */
     706           0 :                 SPDK_ERRLOG("Inactive admin qpair (state %d, group %p)\n", admin_qpair_state, admin_qpair_group);
     707           0 :                 SPDK_NVMF_INVALID_CONNECT_CMD(rsp, qid);
     708           0 :                 goto end;
     709             :         }
     710             : 
     711             :         /* check if we would exceed ctrlr connection limit */
     712           4 :         if (qpair->qid >= spdk_bit_array_capacity(ctrlr->qpair_mask)) {
     713           1 :                 SPDK_ERRLOG("Requested QID %u but Max QID is %u\n",
     714             :                             qpair->qid, spdk_bit_array_capacity(ctrlr->qpair_mask) - 1);
     715           1 :                 rsp->status.sct = SPDK_NVME_SCT_COMMAND_SPECIFIC;
     716           1 :                 rsp->status.sc = SPDK_NVME_SC_INVALID_QUEUE_IDENTIFIER;
     717           1 :                 goto end;
     718             :         }
     719             : 
     720           3 :         nvmf_ctrlr_add_qpair(qpair, ctrlr, req);
     721           3 :         return;
     722           5 : end:
     723           5 :         spdk_nvmf_request_complete(req);
     724             : }
     725             : 
     726             : static void
     727          11 : _nvmf_ctrlr_add_io_qpair(void *ctx)
     728             : {
     729          11 :         struct spdk_nvmf_request *req = ctx;
     730          11 :         struct spdk_nvmf_fabric_connect_rsp *rsp = &req->rsp->connect_rsp;
     731             :         struct spdk_nvmf_fabric_connect_data *data;
     732             :         struct spdk_nvmf_ctrlr *ctrlr;
     733          11 :         struct spdk_nvmf_qpair *qpair = req->qpair;
     734             :         struct spdk_nvmf_qpair *admin_qpair;
     735          11 :         struct spdk_nvmf_tgt *tgt = qpair->transport->tgt;
     736             :         struct spdk_nvmf_subsystem *subsystem;
     737          11 :         struct spdk_nvme_transport_id listen_trid = {};
     738             :         const struct spdk_nvmf_subsystem_listener *listener;
     739          11 :         struct spdk_nvmf_poll_group *admin_qpair_group = NULL;
     740          11 :         enum spdk_nvmf_qpair_state admin_qpair_state = SPDK_NVMF_QPAIR_UNINITIALIZED;
     741          11 :         bool admin_qpair_active = false;
     742             : 
     743          11 :         assert(req->iovcnt == 1);
     744             : 
     745          11 :         data = req->iov[0].iov_base;
     746             : 
     747          11 :         SPDK_DEBUGLOG(nvmf, "Connect I/O Queue for controller id 0x%x\n", data->cntlid);
     748             : 
     749          11 :         subsystem = spdk_nvmf_tgt_find_subsystem(tgt, data->subnqn);
     750             :         /* We already checked this in spdk_nvmf_ctrlr_connect */
     751          11 :         assert(subsystem != NULL);
     752             : 
     753          11 :         ctrlr = nvmf_subsystem_get_ctrlr(subsystem, data->cntlid);
     754          11 :         if (ctrlr == NULL) {
     755           1 :                 SPDK_ERRLOG("Unknown controller ID 0x%x\n", data->cntlid);
     756           1 :                 SPDK_NVMF_INVALID_CONNECT_DATA(rsp, cntlid);
     757           1 :                 spdk_nvmf_request_complete(req);
     758           1 :                 return;
     759             :         }
     760             : 
     761             :         /* fail before passing a message to the controller thread. */
     762          10 :         if (ctrlr->in_destruct) {
     763           0 :                 SPDK_ERRLOG("Got I/O connect while ctrlr was being destroyed.\n");
     764           0 :                 SPDK_NVMF_INVALID_CONNECT_CMD(rsp, qid);
     765           0 :                 spdk_nvmf_request_complete(req);
     766           0 :                 return;
     767             :         }
     768             : 
     769             :         /* If ANA reporting is enabled, check if I/O connect is on the same listener. */
     770          10 :         if (subsystem->flags.ana_reporting) {
     771           0 :                 if (spdk_nvmf_qpair_get_listen_trid(req->qpair, &listen_trid) != 0) {
     772           0 :                         SPDK_ERRLOG("Could not get listener transport ID\n");
     773           0 :                         SPDK_NVMF_INVALID_CONNECT_CMD(rsp, qid);
     774           0 :                         spdk_nvmf_request_complete(req);
     775           0 :                         return;
     776             :                 }
     777             : 
     778           0 :                 listener = nvmf_subsystem_find_listener(subsystem, &listen_trid);
     779           0 :                 if (listener != ctrlr->listener) {
     780           0 :                         SPDK_ERRLOG("I/O connect is on a listener different from admin connect\n");
     781           0 :                         SPDK_NVMF_INVALID_CONNECT_CMD(rsp, qid);
     782           0 :                         spdk_nvmf_request_complete(req);
     783           0 :                         return;
     784             :                 }
     785             :         }
     786             : 
     787          10 :         admin_qpair = ctrlr->admin_qpair;
     788             : 
     789             :         /* There is a chance that admin qpair was destroyed. This is an issue that was observed only with ESX initiators */
     790          10 :         if (admin_qpair) {
     791           9 :                 admin_qpair_active = spdk_nvmf_qpair_is_active(admin_qpair);
     792           9 :                 admin_qpair_group = admin_qpair->group;
     793           9 :                 admin_qpair_state = admin_qpair->state;
     794             :         }
     795             : 
     796          10 :         if (!admin_qpair_active || admin_qpair_group == NULL) {
     797             :                 /* There is a chance that admin qpair was destroyed or is being destroyed at this moment due to e.g.
     798             :                  * expired keep alive timer. Part of the qpair destruction process is change of qpair's
     799             :                  * state to DEACTIVATING and removing it from poll group */
     800           2 :                 SPDK_ERRLOG("Inactive admin qpair (state %d, group %p)\n", admin_qpair_state, admin_qpair_group);
     801           2 :                 SPDK_NVMF_INVALID_CONNECT_CMD(rsp, qid);
     802           2 :                 spdk_nvmf_request_complete(req);
     803           2 :                 return;
     804             :         }
     805           8 :         qpair->ctrlr = ctrlr;
     806           8 :         spdk_thread_send_msg(admin_qpair_group->thread, nvmf_ctrlr_add_io_qpair, req);
     807             : }
     808             : 
     809             : static bool
     810          21 : nvmf_qpair_access_allowed(struct spdk_nvmf_qpair *qpair, struct spdk_nvmf_subsystem *subsystem,
     811             :                           const char *hostnqn)
     812             : {
     813          21 :         struct spdk_nvme_transport_id listen_trid = {};
     814             : 
     815          21 :         if (!spdk_nvmf_subsystem_host_allowed(subsystem, hostnqn)) {
     816           1 :                 SPDK_ERRLOG("Subsystem '%s' does not allow host '%s'\n", subsystem->subnqn, hostnqn);
     817           1 :                 return false;
     818             :         }
     819             : 
     820          20 :         if (spdk_nvmf_qpair_get_listen_trid(qpair, &listen_trid)) {
     821           0 :                 SPDK_ERRLOG("Subsystem '%s' is unable to enforce access control due to an internal error.\n",
     822             :                             subsystem->subnqn);
     823           0 :                 return false;
     824             :         }
     825             : 
     826          20 :         if (!spdk_nvmf_subsystem_listener_allowed(subsystem, &listen_trid)) {
     827           0 :                 SPDK_ERRLOG("Subsystem '%s' does not allow host '%s' to connect at this address.\n",
     828             :                             subsystem->subnqn, hostnqn);
     829           0 :                 return false;
     830             :         }
     831             : 
     832          20 :         return true;
     833             : }
     834             : 
     835             : static int
     836          20 : _nvmf_ctrlr_connect(struct spdk_nvmf_request *req)
     837             : {
     838          20 :         struct spdk_nvmf_fabric_connect_data *data = req->iov[0].iov_base;
     839          20 :         struct spdk_nvmf_fabric_connect_cmd *cmd = &req->cmd->connect_cmd;
     840          20 :         struct spdk_nvmf_fabric_connect_rsp *rsp = &req->rsp->connect_rsp;
     841          20 :         struct spdk_nvmf_qpair *qpair = req->qpair;
     842          20 :         struct spdk_nvmf_transport *transport = qpair->transport;
     843             :         struct spdk_nvmf_ctrlr *ctrlr;
     844             :         struct spdk_nvmf_subsystem *subsystem;
     845             : 
     846          20 :         SPDK_DEBUGLOG(nvmf, "recfmt 0x%x qid %u sqsize %u\n",
     847             :                       cmd->recfmt, cmd->qid, cmd->sqsize);
     848             : 
     849          20 :         SPDK_DEBUGLOG(nvmf, "Connect data:\n");
     850          20 :         SPDK_DEBUGLOG(nvmf, "  cntlid:  0x%04x\n", data->cntlid);
     851          20 :         SPDK_DEBUGLOG(nvmf, "  hostid: %08x-%04x-%04x-%02x%02x-%04x%08x ***\n",
     852             :                       ntohl(*(uint32_t *)&data->hostid[0]),
     853             :                       ntohs(*(uint16_t *)&data->hostid[4]),
     854             :                       ntohs(*(uint16_t *)&data->hostid[6]),
     855             :                       data->hostid[8],
     856             :                       data->hostid[9],
     857             :                       ntohs(*(uint16_t *)&data->hostid[10]),
     858             :                       ntohl(*(uint32_t *)&data->hostid[12]));
     859          20 :         SPDK_DEBUGLOG(nvmf, "  subnqn: \"%s\"\n", data->subnqn);
     860          20 :         SPDK_DEBUGLOG(nvmf, "  hostnqn: \"%s\"\n", data->hostnqn);
     861             : 
     862          20 :         subsystem = spdk_nvmf_tgt_find_subsystem(transport->tgt, data->subnqn);
     863          20 :         if (!subsystem) {
     864           0 :                 SPDK_NVMF_INVALID_CONNECT_DATA(rsp, subnqn);
     865           0 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
     866             :         }
     867             : 
     868          20 :         if (cmd->recfmt != 0) {
     869           1 :                 SPDK_ERRLOG("Connect command unsupported RECFMT %u\n", cmd->recfmt);
     870           1 :                 rsp->status.sct = SPDK_NVME_SCT_COMMAND_SPECIFIC;
     871           1 :                 rsp->status.sc = SPDK_NVMF_FABRIC_SC_INCOMPATIBLE_FORMAT;
     872           1 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
     873             :         }
     874             : 
     875             :         /*
     876             :          * SQSIZE is a 0-based value, so it must be at least 1 (minimum queue depth is 2) and
     877             :          * strictly less than max_aq_depth (admin queues) or max_queue_depth (io queues).
     878             :          */
     879          19 :         if (cmd->sqsize == 0) {
     880           1 :                 SPDK_ERRLOG("Invalid SQSIZE = 0\n");
     881           1 :                 SPDK_NVMF_INVALID_CONNECT_CMD(rsp, sqsize);
     882           1 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
     883             :         }
     884             : 
     885          18 :         if (cmd->qid == 0) {
     886           6 :                 if (cmd->sqsize >= transport->opts.max_aq_depth) {
     887           1 :                         SPDK_ERRLOG("Invalid SQSIZE for admin queue %u (min 1, max %u)\n",
     888             :                                     cmd->sqsize, transport->opts.max_aq_depth - 1);
     889           1 :                         SPDK_NVMF_INVALID_CONNECT_CMD(rsp, sqsize);
     890           1 :                         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
     891             :                 }
     892          12 :         } else if (cmd->sqsize >= transport->opts.max_queue_depth) {
     893           1 :                 SPDK_ERRLOG("Invalid SQSIZE %u (min 1, max %u)\n",
     894             :                             cmd->sqsize, transport->opts.max_queue_depth - 1);
     895           1 :                 SPDK_NVMF_INVALID_CONNECT_CMD(rsp, sqsize);
     896           1 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
     897             :         }
     898             : 
     899          16 :         qpair->sq_head_max = cmd->sqsize;
     900          16 :         qpair->qid = cmd->qid;
     901          16 :         qpair->connect_received = true;
     902             : 
     903          16 :         pthread_mutex_lock(&qpair->group->mutex);
     904          16 :         qpair->group->current_unassociated_qpairs--;
     905          16 :         pthread_mutex_unlock(&qpair->group->mutex);
     906             : 
     907          16 :         if (0 == qpair->qid) {
     908           5 :                 qpair->group->stat.admin_qpairs++;
     909           5 :                 qpair->group->stat.current_admin_qpairs++;
     910             :         } else {
     911          11 :                 qpair->group->stat.io_qpairs++;
     912          11 :                 qpair->group->stat.current_io_qpairs++;
     913             :         }
     914             : 
     915          16 :         if (cmd->qid == 0) {
     916           5 :                 SPDK_DEBUGLOG(nvmf, "Connect Admin Queue for controller ID 0x%x\n", data->cntlid);
     917             : 
     918           5 :                 if (spdk_nvme_trtype_is_fabrics(transport->ops->type) && data->cntlid != 0xFFFF) {
     919             :                         /* This NVMf target only supports dynamic mode. */
     920           1 :                         SPDK_ERRLOG("The NVMf target only supports dynamic mode (CNTLID = 0x%x).\n", data->cntlid);
     921           1 :                         SPDK_NVMF_INVALID_CONNECT_DATA(rsp, cntlid);
     922           1 :                         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
     923             :                 }
     924             : 
     925             :                 /* Establish a new ctrlr */
     926           4 :                 ctrlr = nvmf_ctrlr_create(subsystem, req, cmd, data);
     927           4 :                 if (!ctrlr) {
     928           0 :                         SPDK_ERRLOG("nvmf_ctrlr_create() failed\n");
     929           0 :                         rsp->status.sc = SPDK_NVME_SC_INTERNAL_DEVICE_ERROR;
     930           0 :                         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
     931             :                 } else {
     932           4 :                         return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
     933             :                 }
     934             :         } else {
     935          11 :                 spdk_thread_send_msg(subsystem->thread, _nvmf_ctrlr_add_io_qpair, req);
     936          11 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
     937             :         }
     938             : }
     939             : 
     940             : static struct spdk_nvmf_subsystem_poll_group *
     941           9 : nvmf_subsystem_pg_from_connect_cmd(struct spdk_nvmf_request *req)
     942             : {
     943             :         struct spdk_nvmf_fabric_connect_data *data;
     944             :         struct spdk_nvmf_subsystem *subsystem;
     945             :         struct spdk_nvmf_tgt *tgt;
     946             : 
     947           9 :         assert(nvmf_request_is_fabric_connect(req));
     948           9 :         assert(req->qpair->ctrlr == NULL);
     949           9 :         assert(req->iovcnt == 1);
     950             : 
     951           9 :         data = req->iov[0].iov_base;
     952           9 :         tgt = req->qpair->transport->tgt;
     953             : 
     954           9 :         subsystem = spdk_nvmf_tgt_find_subsystem(tgt, data->subnqn);
     955           9 :         if (subsystem == NULL) {
     956           0 :                 return NULL;
     957             :         }
     958             : 
     959           9 :         return &req->qpair->group->sgroups[subsystem->id];
     960             : }
     961             : 
     962             : int
     963           0 : spdk_nvmf_ctrlr_connect(struct spdk_nvmf_request *req)
     964             : {
     965           0 :         struct spdk_nvmf_fabric_connect_rsp *rsp = &req->rsp->connect_rsp;
     966             :         struct spdk_nvmf_subsystem_poll_group *sgroup;
     967           0 :         struct spdk_nvmf_qpair *qpair = req->qpair;
     968             :         enum spdk_nvmf_request_exec_status status;
     969             : 
     970           0 :         if (req->iovcnt > 1) {
     971           0 :                 SPDK_ERRLOG("Connect command invalid iovcnt: %d\n", req->iovcnt);
     972           0 :                 rsp->status.sc = SPDK_NVME_SC_INVALID_FIELD;
     973           0 :                 status = SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
     974           0 :                 goto out;
     975             :         }
     976             : 
     977           0 :         sgroup = nvmf_subsystem_pg_from_connect_cmd(req);
     978           0 :         if (!sgroup) {
     979           0 :                 SPDK_NVMF_INVALID_CONNECT_DATA(rsp, subnqn);
     980           0 :                 status = SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
     981           0 :                 goto out;
     982             :         }
     983             : 
     984           0 :         sgroup->mgmt_io_outstanding++;
     985           0 :         TAILQ_INSERT_TAIL(&qpair->outstanding, req, link);
     986             : 
     987           0 :         status = _nvmf_ctrlr_connect(req);
     988             : 
     989           0 : out:
     990           0 :         if (status == SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE) {
     991           0 :                 _nvmf_request_complete(req);
     992             :         }
     993             : 
     994           0 :         return status;
     995             : }
     996             : 
     997             : static int
     998          24 : nvmf_ctrlr_cmd_connect(struct spdk_nvmf_request *req)
     999             : {
    1000          24 :         struct spdk_nvmf_fabric_connect_data *data = req->iov[0].iov_base;
    1001          24 :         struct spdk_nvmf_fabric_connect_rsp *rsp = &req->rsp->connect_rsp;
    1002          24 :         struct spdk_nvmf_transport *transport = req->qpair->transport;
    1003             :         struct spdk_nvmf_subsystem *subsystem;
    1004             : 
    1005          24 :         if (req->length < sizeof(struct spdk_nvmf_fabric_connect_data)) {
    1006           1 :                 SPDK_ERRLOG("Connect command data length 0x%x too small\n", req->length);
    1007           1 :                 rsp->status.sc = SPDK_NVME_SC_INVALID_FIELD;
    1008           1 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1009             :         }
    1010             : 
    1011          23 :         if (req->iovcnt > 1) {
    1012           0 :                 SPDK_ERRLOG("Connect command invalid iovcnt: %d\n", req->iovcnt);
    1013           0 :                 rsp->status.sc = SPDK_NVME_SC_INVALID_FIELD;
    1014           0 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1015             :         }
    1016             : 
    1017          23 :         subsystem = spdk_nvmf_tgt_find_subsystem(transport->tgt, data->subnqn);
    1018          23 :         if (!subsystem) {
    1019           1 :                 SPDK_NVMF_INVALID_CONNECT_DATA(rsp, subnqn);
    1020           1 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1021             :         }
    1022             : 
    1023          22 :         if ((subsystem->state == SPDK_NVMF_SUBSYSTEM_INACTIVE) ||
    1024          22 :             (subsystem->state == SPDK_NVMF_SUBSYSTEM_PAUSING) ||
    1025          22 :             (subsystem->state == SPDK_NVMF_SUBSYSTEM_PAUSED) ||
    1026          22 :             (subsystem->state == SPDK_NVMF_SUBSYSTEM_DEACTIVATING)) {
    1027             :                 struct spdk_nvmf_subsystem_poll_group *sgroup;
    1028             : 
    1029             :                 /* Subsystem is not ready to handle a connect. Decrement
    1030             :                  * the mgmt_io_outstanding to avoid the subsystem waiting
    1031             :                  * for this command to complete before unpausing. Queued
    1032             :                  * requests get retried when subsystem resumes.
    1033             :                  */
    1034           0 :                 sgroup = nvmf_subsystem_pg_from_connect_cmd(req);
    1035           0 :                 assert(sgroup != NULL);
    1036           0 :                 sgroup->mgmt_io_outstanding--;
    1037           0 :                 TAILQ_REMOVE(&req->qpair->outstanding, req, link);
    1038           0 :                 TAILQ_INSERT_TAIL(&sgroup->queued, req, link);
    1039           0 :                 SPDK_DEBUGLOG(nvmf, "Subsystem '%s' is not ready for connect, retrying...\n", subsystem->subnqn);
    1040           0 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
    1041             :         }
    1042             : 
    1043             :         /* Ensure that hostnqn is null terminated */
    1044          22 :         if (!memchr(data->hostnqn, '\0', SPDK_NVMF_NQN_MAX_LEN + 1)) {
    1045           1 :                 SPDK_ERRLOG("Connect HOSTNQN is not null terminated\n");
    1046           1 :                 SPDK_NVMF_INVALID_CONNECT_DATA(rsp, hostnqn);
    1047           1 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1048             :         }
    1049             : 
    1050          21 :         if (!nvmf_qpair_access_allowed(req->qpair, subsystem, data->hostnqn)) {
    1051           1 :                 rsp->status.sct = SPDK_NVME_SCT_COMMAND_SPECIFIC;
    1052           1 :                 rsp->status.sc = SPDK_NVMF_FABRIC_SC_INVALID_HOST;
    1053           1 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1054             :         }
    1055             : 
    1056          20 :         return _nvmf_ctrlr_connect(req);
    1057             : }
    1058             : 
    1059             : static int
    1060           0 : nvmf_ctrlr_association_remove(void *ctx)
    1061             : {
    1062           0 :         struct spdk_nvmf_ctrlr *ctrlr = ctx;
    1063             :         int rc;
    1064             : 
    1065           0 :         nvmf_ctrlr_stop_association_timer(ctrlr);
    1066             : 
    1067           0 :         if (ctrlr->in_destruct) {
    1068           0 :                 return SPDK_POLLER_IDLE;
    1069             :         }
    1070           0 :         SPDK_DEBUGLOG(nvmf, "Disconnecting host from subsystem %s due to association timeout.\n",
    1071             :                       ctrlr->subsys->subnqn);
    1072             : 
    1073           0 :         if (ctrlr->admin_qpair) {
    1074           0 :                 rc = spdk_nvmf_qpair_disconnect(ctrlr->admin_qpair);
    1075           0 :                 if (rc < 0 && rc != -EINPROGRESS) {
    1076           0 :                         SPDK_ERRLOG("Fail to disconnect admin ctrlr qpair\n");
    1077           0 :                         assert(false);
    1078             :                 }
    1079             :         }
    1080             : 
    1081           0 :         return SPDK_POLLER_BUSY;
    1082             : }
    1083             : 
    1084             : static int
    1085           0 : _nvmf_ctrlr_cc_reset_shn_done(void *ctx)
    1086             : {
    1087           0 :         struct spdk_nvmf_ctrlr *ctrlr = ctx;
    1088           0 :         uint64_t now = spdk_get_ticks();
    1089             :         uint32_t count;
    1090             : 
    1091           0 :         if (ctrlr->cc_timer) {
    1092           0 :                 spdk_poller_unregister(&ctrlr->cc_timer);
    1093             :         }
    1094             : 
    1095           0 :         count = spdk_bit_array_count_set(ctrlr->qpair_mask);
    1096           0 :         SPDK_DEBUGLOG(nvmf, "ctrlr %p active queue count %u\n", ctrlr, count);
    1097             : 
    1098           0 :         if (count > 1) {
    1099           0 :                 if (now < ctrlr->cc_timeout_tsc) {
    1100             :                         /* restart cc timer */
    1101           0 :                         ctrlr->cc_timer = SPDK_POLLER_REGISTER(_nvmf_ctrlr_cc_reset_shn_done, ctrlr, 100 * 1000);
    1102           0 :                         return SPDK_POLLER_IDLE;
    1103             :                 } else {
    1104             :                         /* controller fatal status */
    1105           0 :                         SPDK_WARNLOG("IO timeout, ctrlr %p is in fatal status\n", ctrlr);
    1106           0 :                         nvmf_ctrlr_set_fatal_status(ctrlr);
    1107             :                 }
    1108             :         }
    1109             : 
    1110           0 :         spdk_poller_unregister(&ctrlr->cc_timeout_timer);
    1111             : 
    1112           0 :         if (ctrlr->disconnect_is_shn) {
    1113           0 :                 ctrlr->vcprop.csts.bits.shst = SPDK_NVME_SHST_COMPLETE;
    1114           0 :                 ctrlr->disconnect_is_shn = false;
    1115             :         } else {
    1116             :                 /* Only a subset of the registers are cleared out on a reset */
    1117           0 :                 ctrlr->vcprop.cc.raw = 0;
    1118           0 :                 ctrlr->vcprop.csts.raw = 0;
    1119             :         }
    1120             : 
    1121             :         /* After CC.EN transitions to 0 (due to shutdown or reset), the association
    1122             :          * between the host and controller shall be preserved for at least 2 minutes */
    1123           0 :         if (ctrlr->association_timer) {
    1124           0 :                 SPDK_DEBUGLOG(nvmf, "Association timer already set\n");
    1125           0 :                 nvmf_ctrlr_stop_association_timer(ctrlr);
    1126             :         }
    1127           0 :         if (ctrlr->association_timeout) {
    1128           0 :                 ctrlr->association_timer = SPDK_POLLER_REGISTER(nvmf_ctrlr_association_remove, ctrlr,
    1129             :                                            ctrlr->association_timeout * 1000);
    1130             :         }
    1131           0 :         ctrlr->disconnect_in_progress = false;
    1132           0 :         return SPDK_POLLER_BUSY;
    1133             : }
    1134             : 
    1135             : static void
    1136           0 : nvmf_ctrlr_cc_reset_shn_done(struct spdk_io_channel_iter *i, int status)
    1137             : {
    1138           0 :         struct spdk_nvmf_ctrlr *ctrlr = spdk_io_channel_iter_get_ctx(i);
    1139             : 
    1140           0 :         if (status < 0) {
    1141           0 :                 SPDK_ERRLOG("Fail to disconnect io ctrlr qpairs\n");
    1142           0 :                 assert(false);
    1143             :         }
    1144             : 
    1145           0 :         _nvmf_ctrlr_cc_reset_shn_done((void *)ctrlr);
    1146           0 : }
    1147             : 
    1148             : static void
    1149           0 : nvmf_bdev_complete_reset(struct spdk_bdev_io *bdev_io, bool success, void *cb_arg)
    1150             : {
    1151           0 :         SPDK_NOTICELOG("Resetting bdev done with %s\n", success ? "success" : "failure");
    1152             : 
    1153           0 :         spdk_bdev_free_io(bdev_io);
    1154           0 : }
    1155             : 
    1156             : 
    1157             : static int
    1158           0 : nvmf_ctrlr_cc_timeout(void *ctx)
    1159             : {
    1160           0 :         struct spdk_nvmf_ctrlr *ctrlr = ctx;
    1161             :         struct spdk_nvmf_poll_group *group;
    1162             :         struct spdk_nvmf_ns *ns;
    1163             :         struct spdk_nvmf_subsystem_pg_ns_info *ns_info;
    1164             : 
    1165           0 :         spdk_poller_unregister(&ctrlr->cc_timeout_timer);
    1166           0 :         SPDK_DEBUGLOG(nvmf, "Ctrlr %p reset or shutdown timeout\n", ctrlr);
    1167             : 
    1168           0 :         if (!ctrlr->admin_qpair) {
    1169           0 :                 SPDK_NOTICELOG("Ctrlr %p admin qpair disconnected\n", ctrlr);
    1170           0 :                 return SPDK_POLLER_IDLE;
    1171             :         }
    1172             : 
    1173           0 :         group = ctrlr->admin_qpair->group;
    1174           0 :         assert(group != NULL && group->sgroups != NULL);
    1175             : 
    1176           0 :         for (ns = spdk_nvmf_subsystem_get_first_ns(ctrlr->subsys); ns != NULL;
    1177           0 :              ns = spdk_nvmf_subsystem_get_next_ns(ctrlr->subsys, ns)) {
    1178           0 :                 if (ns->bdev == NULL) {
    1179           0 :                         continue;
    1180             :                 }
    1181           0 :                 ns_info = &group->sgroups[ctrlr->subsys->id].ns_info[ns->opts.nsid - 1];
    1182           0 :                 SPDK_NOTICELOG("Ctrlr %p resetting NSID %u\n", ctrlr, ns->opts.nsid);
    1183           0 :                 spdk_bdev_reset(ns->desc, ns_info->channel, nvmf_bdev_complete_reset, NULL);
    1184             :         }
    1185             : 
    1186           0 :         return SPDK_POLLER_BUSY;
    1187             : }
    1188             : 
    1189             : const struct spdk_nvmf_registers *
    1190           0 : spdk_nvmf_ctrlr_get_regs(struct spdk_nvmf_ctrlr *ctrlr)
    1191             : {
    1192           0 :         return &ctrlr->vcprop;
    1193             : }
    1194             : 
    1195             : void
    1196           0 : nvmf_ctrlr_set_fatal_status(struct spdk_nvmf_ctrlr *ctrlr)
    1197             : {
    1198           0 :         ctrlr->vcprop.csts.bits.cfs = 1;
    1199           0 : }
    1200             : 
    1201             : static uint64_t
    1202           0 : nvmf_prop_get_cap(struct spdk_nvmf_ctrlr *ctrlr)
    1203             : {
    1204           0 :         return ctrlr->vcprop.cap.raw;
    1205             : }
    1206             : 
    1207             : static uint64_t
    1208           0 : nvmf_prop_get_vs(struct spdk_nvmf_ctrlr *ctrlr)
    1209             : {
    1210           0 :         return ctrlr->vcprop.vs.raw;
    1211             : }
    1212             : 
    1213             : static uint64_t
    1214           1 : nvmf_prop_get_cc(struct spdk_nvmf_ctrlr *ctrlr)
    1215             : {
    1216           1 :         return ctrlr->vcprop.cc.raw;
    1217             : }
    1218             : 
    1219             : static bool
    1220           1 : nvmf_prop_set_cc(struct spdk_nvmf_ctrlr *ctrlr, uint32_t value)
    1221             : {
    1222             :         union spdk_nvme_cc_register cc, diff;
    1223             :         uint32_t cc_timeout_ms;
    1224             : 
    1225           1 :         cc.raw = value;
    1226             : 
    1227           1 :         SPDK_DEBUGLOG(nvmf, "cur CC: 0x%08x\n", ctrlr->vcprop.cc.raw);
    1228           1 :         SPDK_DEBUGLOG(nvmf, "new CC: 0x%08x\n", cc.raw);
    1229             : 
    1230             :         /*
    1231             :          * Calculate which bits changed between the current and new CC.
    1232             :          * Mark each bit as 0 once it is handled to determine if any unhandled bits were changed.
    1233             :          */
    1234           1 :         diff.raw = cc.raw ^ ctrlr->vcprop.cc.raw;
    1235             : 
    1236           1 :         if (diff.bits.en) {
    1237           0 :                 if (cc.bits.en) {
    1238           0 :                         SPDK_DEBUGLOG(nvmf, "Property Set CC Enable!\n");
    1239           0 :                         nvmf_ctrlr_stop_association_timer(ctrlr);
    1240             : 
    1241           0 :                         ctrlr->vcprop.cc.bits.en = 1;
    1242           0 :                         ctrlr->vcprop.csts.bits.rdy = 1;
    1243             :                 } else {
    1244           0 :                         SPDK_DEBUGLOG(nvmf, "Property Set CC Disable!\n");
    1245           0 :                         if (ctrlr->disconnect_in_progress) {
    1246           0 :                                 SPDK_DEBUGLOG(nvmf, "Disconnect in progress\n");
    1247           0 :                                 return true;
    1248             :                         }
    1249             : 
    1250           0 :                         ctrlr->cc_timeout_timer = SPDK_POLLER_REGISTER(nvmf_ctrlr_cc_timeout, ctrlr,
    1251             :                                                   NVMF_CC_RESET_SHN_TIMEOUT_IN_MS * 1000);
    1252             :                         /* Make sure cc_timeout_ms is between cc_timeout_timer and Host reset/shutdown timeout */
    1253           0 :                         cc_timeout_ms = (NVMF_CC_RESET_SHN_TIMEOUT_IN_MS + NVMF_CTRLR_RESET_SHN_TIMEOUT_IN_MS) / 2;
    1254           0 :                         ctrlr->cc_timeout_tsc = spdk_get_ticks() + cc_timeout_ms * spdk_get_ticks_hz() / (uint64_t)1000;
    1255             : 
    1256           0 :                         ctrlr->vcprop.cc.bits.en = 0;
    1257           0 :                         ctrlr->disconnect_in_progress = true;
    1258           0 :                         ctrlr->disconnect_is_shn = false;
    1259           0 :                         spdk_for_each_channel(ctrlr->subsys->tgt,
    1260             :                                               nvmf_ctrlr_disconnect_io_qpairs_on_pg,
    1261             :                                               ctrlr,
    1262             :                                               nvmf_ctrlr_cc_reset_shn_done);
    1263             :                 }
    1264           0 :                 diff.bits.en = 0;
    1265             :         }
    1266             : 
    1267           1 :         if (diff.bits.shn) {
    1268           0 :                 if (cc.bits.shn == SPDK_NVME_SHN_NORMAL ||
    1269           0 :                     cc.bits.shn == SPDK_NVME_SHN_ABRUPT) {
    1270           0 :                         SPDK_DEBUGLOG(nvmf, "Property Set CC Shutdown %u%ub!\n",
    1271             :                                       cc.bits.shn >> 1, cc.bits.shn & 1);
    1272           0 :                         if (ctrlr->disconnect_in_progress) {
    1273           0 :                                 SPDK_DEBUGLOG(nvmf, "Disconnect in progress\n");
    1274           0 :                                 return true;
    1275             :                         }
    1276             : 
    1277           0 :                         ctrlr->cc_timeout_timer = SPDK_POLLER_REGISTER(nvmf_ctrlr_cc_timeout, ctrlr,
    1278             :                                                   NVMF_CC_RESET_SHN_TIMEOUT_IN_MS * 1000);
    1279             :                         /* Make sure cc_timeout_ms is between cc_timeout_timer and Host reset/shutdown timeout */
    1280           0 :                         cc_timeout_ms = (NVMF_CC_RESET_SHN_TIMEOUT_IN_MS + NVMF_CTRLR_RESET_SHN_TIMEOUT_IN_MS) / 2;
    1281           0 :                         ctrlr->cc_timeout_tsc = spdk_get_ticks() + cc_timeout_ms * spdk_get_ticks_hz() / (uint64_t)1000;
    1282             : 
    1283           0 :                         ctrlr->vcprop.cc.bits.shn = cc.bits.shn;
    1284           0 :                         ctrlr->disconnect_in_progress = true;
    1285           0 :                         ctrlr->disconnect_is_shn = true;
    1286           0 :                         spdk_for_each_channel(ctrlr->subsys->tgt,
    1287             :                                               nvmf_ctrlr_disconnect_io_qpairs_on_pg,
    1288             :                                               ctrlr,
    1289             :                                               nvmf_ctrlr_cc_reset_shn_done);
    1290             : 
    1291             :                         /* From the time a shutdown is initiated the controller shall disable
    1292             :                          * Keep Alive timer */
    1293           0 :                         nvmf_ctrlr_stop_keep_alive_timer(ctrlr);
    1294           0 :                 } else if (cc.bits.shn == 0) {
    1295           0 :                         ctrlr->vcprop.cc.bits.shn = 0;
    1296             :                 } else {
    1297           0 :                         SPDK_ERRLOG("Prop Set CC: Invalid SHN value %u%ub\n",
    1298             :                                     cc.bits.shn >> 1, cc.bits.shn & 1);
    1299           0 :                         return false;
    1300             :                 }
    1301           0 :                 diff.bits.shn = 0;
    1302             :         }
    1303             : 
    1304           1 :         if (diff.bits.iosqes) {
    1305           0 :                 SPDK_DEBUGLOG(nvmf, "Prop Set IOSQES = %u (%u bytes)\n",
    1306             :                               cc.bits.iosqes, 1u << cc.bits.iosqes);
    1307           0 :                 ctrlr->vcprop.cc.bits.iosqes = cc.bits.iosqes;
    1308           0 :                 diff.bits.iosqes = 0;
    1309             :         }
    1310             : 
    1311           1 :         if (diff.bits.iocqes) {
    1312           0 :                 SPDK_DEBUGLOG(nvmf, "Prop Set IOCQES = %u (%u bytes)\n",
    1313             :                               cc.bits.iocqes, 1u << cc.bits.iocqes);
    1314           0 :                 ctrlr->vcprop.cc.bits.iocqes = cc.bits.iocqes;
    1315           0 :                 diff.bits.iocqes = 0;
    1316             :         }
    1317             : 
    1318           1 :         if (diff.bits.ams) {
    1319           0 :                 SPDK_ERRLOG("Arbitration Mechanism Selected (AMS) 0x%x not supported!\n", cc.bits.ams);
    1320           0 :                 return false;
    1321             :         }
    1322             : 
    1323           1 :         if (diff.bits.mps) {
    1324           0 :                 SPDK_ERRLOG("Memory Page Size (MPS) %u KiB not supported!\n", (1 << (2 + cc.bits.mps)));
    1325           0 :                 return false;
    1326             :         }
    1327             : 
    1328           1 :         if (diff.bits.css) {
    1329           0 :                 if (cc.bits.css > SPDK_NVME_CC_CSS_IOCS) {
    1330           0 :                         SPDK_ERRLOG("I/O Command Set Selected (CSS) 0x%x not supported!\n", cc.bits.css);
    1331           0 :                         return false;
    1332             :                 }
    1333           0 :                 diff.bits.css = 0;
    1334             :         }
    1335             : 
    1336           1 :         if (diff.raw != 0) {
    1337             :                 /* Print an error message, but don't fail the command in this case.
    1338             :                  * If we did want to fail in this case, we'd need to ensure we acted
    1339             :                  * on no other bits or the initiator gets confused. */
    1340           0 :                 SPDK_ERRLOG("Prop Set CC toggled reserved bits 0x%x!\n", diff.raw);
    1341             :         }
    1342             : 
    1343           1 :         return true;
    1344             : }
    1345             : 
    1346             : static uint64_t
    1347           0 : nvmf_prop_get_csts(struct spdk_nvmf_ctrlr *ctrlr)
    1348             : {
    1349           0 :         return ctrlr->vcprop.csts.raw;
    1350             : }
    1351             : 
    1352             : static uint64_t
    1353           0 : nvmf_prop_get_aqa(struct spdk_nvmf_ctrlr *ctrlr)
    1354             : {
    1355           0 :         return ctrlr->vcprop.aqa.raw;
    1356             : }
    1357             : 
    1358             : static bool
    1359           0 : nvmf_prop_set_aqa(struct spdk_nvmf_ctrlr *ctrlr, uint32_t value)
    1360             : {
    1361             :         union spdk_nvme_aqa_register aqa;
    1362             : 
    1363           0 :         aqa.raw = value;
    1364             : 
    1365             :         /*
    1366             :          * We don't need to explicitly check for maximum size, as the fields are
    1367             :          * limited to 12 bits (4096).
    1368             :          */
    1369           0 :         if (aqa.bits.asqs < SPDK_NVME_ADMIN_QUEUE_MIN_ENTRIES - 1 ||
    1370           0 :             aqa.bits.acqs < SPDK_NVME_ADMIN_QUEUE_MIN_ENTRIES - 1 ||
    1371           0 :             aqa.bits.reserved1 != 0 || aqa.bits.reserved2 != 0) {
    1372           0 :                 return false;
    1373             :         }
    1374             : 
    1375           0 :         ctrlr->vcprop.aqa.raw = value;
    1376             : 
    1377           0 :         return true;
    1378             : }
    1379             : 
    1380             : static uint64_t
    1381           1 : nvmf_prop_get_asq(struct spdk_nvmf_ctrlr *ctrlr)
    1382             : {
    1383           1 :         return ctrlr->vcprop.asq;
    1384             : }
    1385             : 
    1386             : static bool
    1387           1 : nvmf_prop_set_asq_lower(struct spdk_nvmf_ctrlr *ctrlr, uint32_t value)
    1388             : {
    1389           1 :         ctrlr->vcprop.asq = (ctrlr->vcprop.asq & (0xFFFFFFFFULL << 32ULL)) | value;
    1390             : 
    1391           1 :         return true;
    1392             : }
    1393             : 
    1394             : static bool
    1395           0 : nvmf_prop_set_asq_upper(struct spdk_nvmf_ctrlr *ctrlr, uint32_t value)
    1396             : {
    1397           0 :         ctrlr->vcprop.asq = (ctrlr->vcprop.asq & 0xFFFFFFFFULL) | ((uint64_t)value << 32ULL);
    1398             : 
    1399           0 :         return true;
    1400             : }
    1401             : 
    1402             : static uint64_t
    1403           0 : nvmf_prop_get_acq(struct spdk_nvmf_ctrlr *ctrlr)
    1404             : {
    1405           0 :         return ctrlr->vcprop.acq;
    1406             : }
    1407             : 
    1408             : static bool
    1409           0 : nvmf_prop_set_acq_lower(struct spdk_nvmf_ctrlr *ctrlr, uint32_t value)
    1410             : {
    1411           0 :         ctrlr->vcprop.acq = (ctrlr->vcprop.acq & (0xFFFFFFFFULL << 32ULL)) | value;
    1412             : 
    1413           0 :         return true;
    1414             : }
    1415             : 
    1416             : static bool
    1417           0 : nvmf_prop_set_acq_upper(struct spdk_nvmf_ctrlr *ctrlr, uint32_t value)
    1418             : {
    1419           0 :         ctrlr->vcprop.acq = (ctrlr->vcprop.acq & 0xFFFFFFFFULL) | ((uint64_t)value << 32ULL);
    1420             : 
    1421           0 :         return true;
    1422             : }
    1423             : 
    1424             : struct nvmf_prop {
    1425             :         uint32_t ofst;
    1426             :         uint8_t size;
    1427             :         char name[11];
    1428             :         uint64_t (*get_cb)(struct spdk_nvmf_ctrlr *ctrlr);
    1429             :         bool (*set_cb)(struct spdk_nvmf_ctrlr *ctrlr, uint32_t value);
    1430             :         bool (*set_upper_cb)(struct spdk_nvmf_ctrlr *ctrlr, uint32_t value);
    1431             : };
    1432             : 
    1433             : #define PROP(field, size, get_cb, set_cb, set_upper_cb) \
    1434             :         { \
    1435             :                 offsetof(struct spdk_nvme_registers, field), \
    1436             :                 size, \
    1437             :                 #field, \
    1438             :                 get_cb, set_cb, set_upper_cb \
    1439             :         }
    1440             : 
    1441             : static const struct nvmf_prop nvmf_props[] = {
    1442             :         PROP(cap,  8, nvmf_prop_get_cap,  NULL,                    NULL),
    1443             :         PROP(vs,   4, nvmf_prop_get_vs,   NULL,                    NULL),
    1444             :         PROP(cc,   4, nvmf_prop_get_cc,   nvmf_prop_set_cc,        NULL),
    1445             :         PROP(csts, 4, nvmf_prop_get_csts, NULL,                    NULL),
    1446             :         PROP(aqa,  4, nvmf_prop_get_aqa,  nvmf_prop_set_aqa,       NULL),
    1447             :         PROP(asq,  8, nvmf_prop_get_asq,  nvmf_prop_set_asq_lower, nvmf_prop_set_asq_upper),
    1448             :         PROP(acq,  8, nvmf_prop_get_acq,  nvmf_prop_set_acq_lower, nvmf_prop_set_acq_upper),
    1449             : };
    1450             : 
    1451             : static const struct nvmf_prop *
    1452           6 : find_prop(uint32_t ofst, uint8_t size)
    1453             : {
    1454             :         size_t i;
    1455             : 
    1456          28 :         for (i = 0; i < SPDK_COUNTOF(nvmf_props); i++) {
    1457          27 :                 const struct nvmf_prop *prop = &nvmf_props[i];
    1458             : 
    1459          27 :                 if ((ofst >= prop->ofst) && (ofst + size <= prop->ofst + prop->size)) {
    1460           5 :                         return prop;
    1461             :                 }
    1462             :         }
    1463             : 
    1464           1 :         return NULL;
    1465             : }
    1466             : 
    1467             : static int
    1468           3 : nvmf_property_get(struct spdk_nvmf_request *req)
    1469             : {
    1470           3 :         struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
    1471           3 :         struct spdk_nvmf_fabric_prop_get_cmd *cmd = &req->cmd->prop_get_cmd;
    1472           3 :         struct spdk_nvmf_fabric_prop_get_rsp *response = &req->rsp->prop_get_rsp;
    1473             :         const struct nvmf_prop *prop;
    1474             :         uint8_t size;
    1475             : 
    1476           3 :         response->status.sc = 0;
    1477           3 :         response->value.u64 = 0;
    1478             : 
    1479           3 :         SPDK_DEBUGLOG(nvmf, "size %d, offset 0x%x\n",
    1480             :                       cmd->attrib.size, cmd->ofst);
    1481             : 
    1482           3 :         switch (cmd->attrib.size) {
    1483           3 :         case SPDK_NVMF_PROP_SIZE_4:
    1484           3 :                 size = 4;
    1485           3 :                 break;
    1486           0 :         case SPDK_NVMF_PROP_SIZE_8:
    1487           0 :                 size = 8;
    1488           0 :                 break;
    1489           0 :         default:
    1490           0 :                 SPDK_DEBUGLOG(nvmf, "Invalid size value %d\n", cmd->attrib.size);
    1491           0 :                 response->status.sct = SPDK_NVME_SCT_COMMAND_SPECIFIC;
    1492           0 :                 response->status.sc = SPDK_NVMF_FABRIC_SC_INVALID_PARAM;
    1493           0 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1494             :         }
    1495             : 
    1496           3 :         prop = find_prop(cmd->ofst, size);
    1497           3 :         if (prop == NULL || prop->get_cb == NULL) {
    1498           1 :                 response->status.sct = SPDK_NVME_SCT_COMMAND_SPECIFIC;
    1499           1 :                 response->status.sc = SPDK_NVMF_FABRIC_SC_INVALID_PARAM;
    1500           1 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1501             :         }
    1502             : 
    1503           2 :         SPDK_DEBUGLOG(nvmf, "name: %s\n", prop->name);
    1504             : 
    1505           2 :         response->value.u64 = prop->get_cb(ctrlr);
    1506             : 
    1507           2 :         if (size != prop->size) {
    1508             :                 /* The size must be 4 and the prop->size is 8. Figure out which part of the property to read. */
    1509           1 :                 assert(size == 4);
    1510           1 :                 assert(prop->size == 8);
    1511             : 
    1512           1 :                 if (cmd->ofst == prop->ofst) {
    1513             :                         /* Keep bottom 4 bytes only */
    1514           1 :                         response->value.u64 &= 0xFFFFFFFF;
    1515             :                 } else {
    1516             :                         /* Keep top 4 bytes only */
    1517           0 :                         response->value.u64 >>= 32;
    1518             :                 }
    1519             :         }
    1520             : 
    1521           2 :         SPDK_DEBUGLOG(nvmf, "response value: 0x%" PRIx64 "\n", response->value.u64);
    1522             : 
    1523           2 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1524             : }
    1525             : 
    1526             : static int
    1527           3 : nvmf_property_set(struct spdk_nvmf_request *req)
    1528             : {
    1529           3 :         struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
    1530           3 :         struct spdk_nvmf_fabric_prop_set_cmd *cmd = &req->cmd->prop_set_cmd;
    1531           3 :         struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl;
    1532             :         const struct nvmf_prop *prop;
    1533             :         uint64_t value;
    1534             :         uint8_t size;
    1535             :         bool ret;
    1536             : 
    1537           3 :         SPDK_DEBUGLOG(nvmf, "size %d, offset 0x%x, value 0x%" PRIx64 "\n",
    1538             :                       cmd->attrib.size, cmd->ofst, cmd->value.u64);
    1539             : 
    1540           3 :         switch (cmd->attrib.size) {
    1541           3 :         case SPDK_NVMF_PROP_SIZE_4:
    1542           3 :                 size = 4;
    1543           3 :                 break;
    1544           0 :         case SPDK_NVMF_PROP_SIZE_8:
    1545           0 :                 size = 8;
    1546           0 :                 break;
    1547           0 :         default:
    1548           0 :                 SPDK_DEBUGLOG(nvmf, "Invalid size value %d\n", cmd->attrib.size);
    1549           0 :                 response->status.sct = SPDK_NVME_SCT_COMMAND_SPECIFIC;
    1550           0 :                 response->status.sc = SPDK_NVMF_FABRIC_SC_INVALID_PARAM;
    1551           0 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1552             :         }
    1553             : 
    1554           3 :         prop = find_prop(cmd->ofst, size);
    1555           3 :         if (prop == NULL || prop->set_cb == NULL) {
    1556           1 :                 SPDK_INFOLOG(nvmf, "Invalid offset 0x%x\n", cmd->ofst);
    1557           1 :                 response->status.sct = SPDK_NVME_SCT_COMMAND_SPECIFIC;
    1558           1 :                 response->status.sc = SPDK_NVMF_FABRIC_SC_INVALID_PARAM;
    1559           1 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1560             :         }
    1561             : 
    1562           2 :         SPDK_DEBUGLOG(nvmf, "name: %s\n", prop->name);
    1563             : 
    1564           2 :         value = cmd->value.u64;
    1565             : 
    1566           2 :         if (prop->size == 4) {
    1567           1 :                 ret = prop->set_cb(ctrlr, (uint32_t)value);
    1568           1 :         } else if (size != prop->size) {
    1569             :                 /* The size must be 4 and the prop->size is 8. Figure out which part of the property to write. */
    1570           1 :                 assert(size == 4);
    1571           1 :                 assert(prop->size == 8);
    1572             : 
    1573           1 :                 if (cmd->ofst == prop->ofst) {
    1574           1 :                         ret = prop->set_cb(ctrlr, (uint32_t)value);
    1575             :                 } else {
    1576           0 :                         ret = prop->set_upper_cb(ctrlr, (uint32_t)value);
    1577             :                 }
    1578             :         } else {
    1579           0 :                 ret = prop->set_cb(ctrlr, (uint32_t)value);
    1580           0 :                 if (ret) {
    1581           0 :                         ret = prop->set_upper_cb(ctrlr, (uint32_t)(value >> 32));
    1582             :                 }
    1583             :         }
    1584             : 
    1585           2 :         if (!ret) {
    1586           0 :                 SPDK_ERRLOG("prop set_cb failed\n");
    1587           0 :                 response->status.sct = SPDK_NVME_SCT_COMMAND_SPECIFIC;
    1588           0 :                 response->status.sc = SPDK_NVMF_FABRIC_SC_INVALID_PARAM;
    1589           0 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1590             :         }
    1591             : 
    1592           2 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1593             : }
    1594             : 
    1595             : static int
    1596           0 : nvmf_ctrlr_set_features_arbitration(struct spdk_nvmf_request *req)
    1597             : {
    1598           0 :         struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
    1599           0 :         struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
    1600             : 
    1601           0 :         SPDK_DEBUGLOG(nvmf, "Set Features - Arbitration (cdw11 = 0x%0x)\n", cmd->cdw11);
    1602             : 
    1603           0 :         ctrlr->feat.arbitration.raw = cmd->cdw11;
    1604           0 :         ctrlr->feat.arbitration.bits.reserved = 0;
    1605             : 
    1606           0 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1607             : }
    1608             : 
    1609             : static int
    1610           0 : nvmf_ctrlr_set_features_power_management(struct spdk_nvmf_request *req)
    1611             : {
    1612           0 :         struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
    1613           0 :         struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
    1614           0 :         struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl;
    1615             : 
    1616           0 :         SPDK_DEBUGLOG(nvmf, "Set Features - Power Management (cdw11 = 0x%0x)\n", cmd->cdw11);
    1617             : 
    1618             :         /* Only PS = 0 is allowed, since we report NPSS = 0 */
    1619           0 :         if (cmd->cdw11_bits.feat_power_management.bits.ps != 0) {
    1620           0 :                 SPDK_ERRLOG("Invalid power state %u\n", cmd->cdw11_bits.feat_power_management.bits.ps);
    1621           0 :                 rsp->status.sct = SPDK_NVME_SCT_GENERIC;
    1622           0 :                 rsp->status.sc = SPDK_NVME_SC_INVALID_FIELD;
    1623           0 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1624             :         }
    1625             : 
    1626           0 :         ctrlr->feat.power_management.raw = cmd->cdw11;
    1627           0 :         ctrlr->feat.power_management.bits.reserved = 0;
    1628             : 
    1629           0 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1630             : }
    1631             : 
    1632             : static bool
    1633           5 : temp_threshold_opts_valid(const union spdk_nvme_feat_temperature_threshold *opts)
    1634             : {
    1635             :         /*
    1636             :          * Valid TMPSEL values:
    1637             :          *  0000b - 1000b: temperature sensors
    1638             :          *  1111b: set all implemented temperature sensors
    1639             :          */
    1640           5 :         if (opts->bits.tmpsel >= 9 && opts->bits.tmpsel != 15) {
    1641             :                 /* 1001b - 1110b: reserved */
    1642           2 :                 SPDK_ERRLOG("Invalid TMPSEL %u\n", opts->bits.tmpsel);
    1643           2 :                 return false;
    1644             :         }
    1645             : 
    1646             :         /*
    1647             :          * Valid THSEL values:
    1648             :          *  00b: over temperature threshold
    1649             :          *  01b: under temperature threshold
    1650             :          */
    1651           3 :         if (opts->bits.thsel > 1) {
    1652             :                 /* 10b - 11b: reserved */
    1653           1 :                 SPDK_ERRLOG("Invalid THSEL %u\n", opts->bits.thsel);
    1654           1 :                 return false;
    1655             :         }
    1656             : 
    1657           2 :         return true;
    1658             : }
    1659             : 
    1660             : static int
    1661           3 : nvmf_ctrlr_set_features_temperature_threshold(struct spdk_nvmf_request *req)
    1662             : {
    1663           3 :         struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
    1664           3 :         struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl;
    1665             : 
    1666           3 :         SPDK_DEBUGLOG(nvmf, "Set Features - Temperature Threshold (cdw11 = 0x%0x)\n", cmd->cdw11);
    1667             : 
    1668           3 :         if (!temp_threshold_opts_valid(&cmd->cdw11_bits.feat_temp_threshold)) {
    1669           2 :                 rsp->status.sct = SPDK_NVME_SCT_GENERIC;
    1670           2 :                 rsp->status.sc = SPDK_NVME_SC_INVALID_FIELD;
    1671           2 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1672             :         }
    1673             : 
    1674             :         /* TODO: no sensors implemented - ignore new values */
    1675           1 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1676             : }
    1677             : 
    1678             : static int
    1679           2 : nvmf_ctrlr_get_features_temperature_threshold(struct spdk_nvmf_request *req)
    1680             : {
    1681           2 :         struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
    1682           2 :         struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl;
    1683             : 
    1684           2 :         SPDK_DEBUGLOG(nvmf, "Get Features - Temperature Threshold (cdw11 = 0x%0x)\n", cmd->cdw11);
    1685             : 
    1686           2 :         if (!temp_threshold_opts_valid(&cmd->cdw11_bits.feat_temp_threshold)) {
    1687           1 :                 rsp->status.sct = SPDK_NVME_SCT_GENERIC;
    1688           1 :                 rsp->status.sc = SPDK_NVME_SC_INVALID_FIELD;
    1689           1 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1690             :         }
    1691             : 
    1692             :         /* TODO: no sensors implemented - return 0 for all thresholds */
    1693           1 :         rsp->cdw0 = 0;
    1694             : 
    1695           1 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1696             : }
    1697             : 
    1698             : static int
    1699           0 : nvmf_ctrlr_get_features_interrupt_vector_configuration(struct spdk_nvmf_request *req)
    1700             : {
    1701           0 :         struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
    1702           0 :         struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
    1703           0 :         struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl;
    1704           0 :         union spdk_nvme_feat_interrupt_vector_configuration iv_conf = {};
    1705             : 
    1706           0 :         SPDK_DEBUGLOG(nvmf, "Get Features - Interrupt Vector Configuration (cdw11 = 0x%0x)\n", cmd->cdw11);
    1707             : 
    1708           0 :         iv_conf.bits.iv = cmd->cdw11_bits.feat_interrupt_vector_configuration.bits.iv;
    1709           0 :         iv_conf.bits.cd = ctrlr->feat.interrupt_vector_configuration.bits.cd;
    1710           0 :         rsp->cdw0 = iv_conf.raw;
    1711             : 
    1712           0 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1713             : }
    1714             : 
    1715             : static int
    1716           2 : nvmf_ctrlr_set_features_error_recovery(struct spdk_nvmf_request *req)
    1717             : {
    1718           2 :         struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
    1719           2 :         struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
    1720           2 :         struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl;
    1721             : 
    1722           2 :         SPDK_DEBUGLOG(nvmf, "Set Features - Error Recovery (cdw11 = 0x%0x)\n", cmd->cdw11);
    1723             : 
    1724           2 :         if (cmd->cdw11_bits.feat_error_recovery.bits.dulbe) {
    1725             :                 /*
    1726             :                  * Host is not allowed to set this bit, since we don't advertise it in
    1727             :                  * Identify Namespace.
    1728             :                  */
    1729           1 :                 SPDK_ERRLOG("Host set unsupported DULBE bit\n");
    1730           1 :                 rsp->status.sct = SPDK_NVME_SCT_GENERIC;
    1731           1 :                 rsp->status.sc = SPDK_NVME_SC_INVALID_FIELD;
    1732           1 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1733             :         }
    1734             : 
    1735           1 :         ctrlr->feat.error_recovery.raw = cmd->cdw11;
    1736           1 :         ctrlr->feat.error_recovery.bits.reserved = 0;
    1737             : 
    1738           1 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1739             : }
    1740             : 
    1741             : static int
    1742           0 : nvmf_ctrlr_set_features_volatile_write_cache(struct spdk_nvmf_request *req)
    1743             : {
    1744           0 :         struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
    1745           0 :         struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
    1746             : 
    1747           0 :         SPDK_DEBUGLOG(nvmf, "Set Features - Volatile Write Cache (cdw11 = 0x%0x)\n", cmd->cdw11);
    1748             : 
    1749           0 :         ctrlr->feat.volatile_write_cache.raw = cmd->cdw11;
    1750           0 :         ctrlr->feat.volatile_write_cache.bits.reserved = 0;
    1751             : 
    1752           0 :         SPDK_DEBUGLOG(nvmf, "Set Features - Volatile Write Cache %s\n",
    1753             :                       ctrlr->feat.volatile_write_cache.bits.wce ? "Enabled" : "Disabled");
    1754           0 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1755             : }
    1756             : 
    1757             : static int
    1758           0 : nvmf_ctrlr_set_features_write_atomicity(struct spdk_nvmf_request *req)
    1759             : {
    1760           0 :         struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
    1761           0 :         struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
    1762             : 
    1763           0 :         SPDK_DEBUGLOG(nvmf, "Set Features - Write Atomicity (cdw11 = 0x%0x)\n", cmd->cdw11);
    1764             : 
    1765           0 :         ctrlr->feat.write_atomicity.raw = cmd->cdw11;
    1766           0 :         ctrlr->feat.write_atomicity.bits.reserved = 0;
    1767             : 
    1768           0 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1769             : }
    1770             : 
    1771             : static int
    1772           0 : nvmf_ctrlr_set_features_host_identifier(struct spdk_nvmf_request *req)
    1773             : {
    1774           0 :         struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl;
    1775             : 
    1776           0 :         SPDK_ERRLOG("Set Features - Host Identifier not allowed\n");
    1777           0 :         response->status.sc = SPDK_NVME_SC_COMMAND_SEQUENCE_ERROR;
    1778           0 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1779             : }
    1780             : 
    1781             : static int
    1782           0 : nvmf_ctrlr_get_features_host_identifier(struct spdk_nvmf_request *req)
    1783             : {
    1784           0 :         struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
    1785           0 :         struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
    1786           0 :         struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl;
    1787           0 :         struct spdk_iov_xfer ix;
    1788             : 
    1789           0 :         SPDK_DEBUGLOG(nvmf, "Get Features - Host Identifier\n");
    1790             : 
    1791           0 :         if (!cmd->cdw11_bits.feat_host_identifier.bits.exhid) {
    1792             :                 /* NVMe over Fabrics requires EXHID=1 (128-bit/16-byte host ID) */
    1793           0 :                 SPDK_ERRLOG("Get Features - Host Identifier with EXHID=0 not allowed\n");
    1794           0 :                 response->status.sc = SPDK_NVME_SC_INVALID_FIELD;
    1795           0 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1796             :         }
    1797             : 
    1798           0 :         if (req->iovcnt < 1 || req->length < sizeof(ctrlr->hostid)) {
    1799           0 :                 SPDK_ERRLOG("Invalid data buffer for Get Features - Host Identifier\n");
    1800           0 :                 response->status.sc = SPDK_NVME_SC_INVALID_FIELD;
    1801           0 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1802             :         }
    1803             : 
    1804           0 :         spdk_iov_xfer_init(&ix, req->iov, req->iovcnt);
    1805           0 :         spdk_iov_xfer_from_buf(&ix, &ctrlr->hostid, sizeof(ctrlr->hostid));
    1806             : 
    1807           0 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1808             : }
    1809             : 
    1810             : static int
    1811           0 : nvmf_ctrlr_get_features_reservation_notification_mask(struct spdk_nvmf_request *req)
    1812             : {
    1813           0 :         struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
    1814           0 :         struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
    1815           0 :         struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl;
    1816             :         struct spdk_nvmf_ns *ns;
    1817             : 
    1818           0 :         SPDK_DEBUGLOG(nvmf, "get Features - Reservation Notification Mask\n");
    1819             : 
    1820           0 :         if (cmd->nsid == SPDK_NVME_GLOBAL_NS_TAG) {
    1821           0 :                 SPDK_ERRLOG("get Features - Invalid Namespace ID\n");
    1822           0 :                 rsp->status.sc = SPDK_NVME_SC_INVALID_FIELD;
    1823           0 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1824             :         }
    1825             : 
    1826           0 :         ns = nvmf_ctrlr_get_ns(ctrlr, cmd->nsid);
    1827           0 :         if (ns == NULL) {
    1828           0 :                 SPDK_ERRLOG("get Features - Invalid Namespace ID\n");
    1829           0 :                 rsp->status.sc = SPDK_NVME_SC_INVALID_FIELD;
    1830           0 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1831             :         }
    1832           0 :         rsp->cdw0 = ns->mask;
    1833             : 
    1834           0 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1835             : }
    1836             : 
    1837             : static int
    1838           0 : nvmf_ctrlr_set_features_reservation_notification_mask(struct spdk_nvmf_request *req)
    1839             : {
    1840           0 :         struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
    1841           0 :         struct spdk_nvmf_subsystem *subsystem = ctrlr->subsys;
    1842           0 :         struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
    1843           0 :         struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl;
    1844             :         struct spdk_nvmf_ns *ns;
    1845             : 
    1846           0 :         SPDK_DEBUGLOG(nvmf, "Set Features - Reservation Notification Mask\n");
    1847             : 
    1848           0 :         if (cmd->nsid == SPDK_NVME_GLOBAL_NS_TAG) {
    1849           0 :                 for (ns = spdk_nvmf_subsystem_get_first_ns(subsystem); ns != NULL;
    1850           0 :                      ns = spdk_nvmf_subsystem_get_next_ns(subsystem, ns)) {
    1851           0 :                         ns->mask = cmd->cdw11;
    1852             :                 }
    1853           0 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1854             :         }
    1855             : 
    1856           0 :         ns = nvmf_ctrlr_get_ns(ctrlr, cmd->nsid);
    1857           0 :         if (ns == NULL) {
    1858           0 :                 SPDK_ERRLOG("Set Features - Invalid Namespace ID\n");
    1859           0 :                 rsp->status.sc = SPDK_NVME_SC_INVALID_FIELD;
    1860           0 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1861             :         }
    1862           0 :         ns->mask = cmd->cdw11;
    1863             : 
    1864           0 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1865             : }
    1866             : 
    1867             : static int
    1868           1 : nvmf_ctrlr_get_features_reservation_persistence(struct spdk_nvmf_request *req)
    1869             : {
    1870           1 :         struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
    1871           1 :         struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
    1872           1 :         struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl;
    1873             :         struct spdk_nvmf_ns *ns;
    1874             : 
    1875           1 :         SPDK_DEBUGLOG(nvmf, "Get Features - Reservation Persistence\n");
    1876             : 
    1877           1 :         ns = nvmf_ctrlr_get_ns(ctrlr, cmd->nsid);
    1878             :         /* NSID with SPDK_NVME_GLOBAL_NS_TAG (=0xffffffff) also included */
    1879           1 :         if (ns == NULL) {
    1880           0 :                 SPDK_ERRLOG("Get Features - Invalid Namespace ID\n");
    1881           0 :                 response->status.sct = SPDK_NVME_SCT_GENERIC;
    1882           0 :                 response->status.sc = SPDK_NVME_SC_INVALID_FIELD;
    1883           0 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1884             :         }
    1885             : 
    1886           1 :         response->cdw0 = ns->ptpl_activated;
    1887             : 
    1888           1 :         response->status.sct = SPDK_NVME_SCT_GENERIC;
    1889           1 :         response->status.sc = SPDK_NVME_SC_SUCCESS;
    1890           1 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1891             : }
    1892             : 
    1893             : static int
    1894           1 : nvmf_ctrlr_set_features_reservation_persistence(struct spdk_nvmf_request *req)
    1895             : {
    1896           1 :         struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
    1897           1 :         struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
    1898           1 :         struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl;
    1899             :         struct spdk_nvmf_ns *ns;
    1900             :         bool ptpl;
    1901             : 
    1902           1 :         SPDK_DEBUGLOG(nvmf, "Set Features - Reservation Persistence\n");
    1903             : 
    1904           1 :         ns = nvmf_ctrlr_get_ns(ctrlr, cmd->nsid);
    1905           1 :         ptpl = cmd->cdw11_bits.feat_rsv_persistence.bits.ptpl;
    1906             : 
    1907           1 :         if (cmd->nsid != SPDK_NVME_GLOBAL_NS_TAG && ns && nvmf_ns_is_ptpl_capable(ns)) {
    1908           1 :                 ns->ptpl_activated = ptpl;
    1909           0 :         } else if (cmd->nsid == SPDK_NVME_GLOBAL_NS_TAG) {
    1910           0 :                 for (ns = spdk_nvmf_subsystem_get_first_ns(ctrlr->subsys); ns;
    1911           0 :                      ns = spdk_nvmf_subsystem_get_next_ns(ctrlr->subsys, ns)) {
    1912           0 :                         if (nvmf_ns_is_ptpl_capable(ns)) {
    1913           0 :                                 ns->ptpl_activated = ptpl;
    1914             :                         }
    1915             :                 }
    1916             :         } else {
    1917           0 :                 SPDK_ERRLOG("Set Features - Invalid Namespace ID or Reservation Configuration\n");
    1918           0 :                 response->status.sct = SPDK_NVME_SCT_GENERIC;
    1919           0 :                 response->status.sc = SPDK_NVME_SC_INVALID_FIELD;
    1920           0 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1921             :         }
    1922             : 
    1923             :         /* TODO: Feature not changeable for now */
    1924           1 :         response->status.sct = SPDK_NVME_SCT_COMMAND_SPECIFIC;
    1925           1 :         response->status.sc = SPDK_NVME_SC_FEATURE_ID_NOT_SAVEABLE;
    1926           1 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1927             : }
    1928             : 
    1929             : static int
    1930           3 : nvmf_ctrlr_get_features_host_behavior_support(struct spdk_nvmf_request *req)
    1931             : {
    1932           3 :         struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
    1933           3 :         struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl;
    1934           3 :         struct spdk_nvme_host_behavior host_behavior = {};
    1935           3 :         struct spdk_iov_xfer ix;
    1936             : 
    1937           3 :         SPDK_DEBUGLOG(nvmf, "Get Features - Host Behavior Support\n");
    1938             : 
    1939           3 :         if (req->iovcnt < 1 || req->length < sizeof(struct spdk_nvme_host_behavior)) {
    1940           2 :                 SPDK_ERRLOG("invalid data buffer for Host Behavior Support\n");
    1941           2 :                 response->status.sct = SPDK_NVME_SCT_GENERIC;
    1942           2 :                 response->status.sc = SPDK_NVME_SC_INVALID_FIELD;
    1943           2 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1944             :         }
    1945             : 
    1946           1 :         host_behavior.acre = ctrlr->acre_enabled;
    1947             : 
    1948           1 :         spdk_iov_xfer_init(&ix, req->iov, req->iovcnt);
    1949           1 :         spdk_iov_xfer_from_buf(&ix, &host_behavior, sizeof(host_behavior));
    1950             : 
    1951           1 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1952             : }
    1953             : 
    1954             : static int
    1955           5 : nvmf_ctrlr_set_features_host_behavior_support(struct spdk_nvmf_request *req)
    1956             : {
    1957           5 :         struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
    1958           5 :         struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl;
    1959             :         struct spdk_nvme_host_behavior *host_behavior;
    1960             : 
    1961           5 :         SPDK_DEBUGLOG(nvmf, "Set Features - Host Behavior Support\n");
    1962           5 :         if (req->iovcnt != 1) {
    1963           1 :                 SPDK_ERRLOG("Host Behavior Support invalid iovcnt: %d\n", req->iovcnt);
    1964           1 :                 response->status.sct = SPDK_NVME_SCT_GENERIC;
    1965           1 :                 response->status.sc = SPDK_NVME_SC_INVALID_FIELD;
    1966           1 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1967             :         }
    1968           4 :         if (req->iov[0].iov_len != sizeof(struct spdk_nvme_host_behavior)) {
    1969           1 :                 SPDK_ERRLOG("Host Behavior Support invalid iov_len: %zd\n", req->iov[0].iov_len);
    1970           1 :                 response->status.sct = SPDK_NVME_SCT_GENERIC;
    1971           1 :                 response->status.sc = SPDK_NVME_SC_INVALID_FIELD;
    1972           1 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1973             :         }
    1974             : 
    1975           3 :         host_behavior = (struct spdk_nvme_host_behavior *)req->iov[0].iov_base;
    1976           3 :         if (host_behavior->acre == 0) {
    1977           1 :                 ctrlr->acre_enabled = false;
    1978           2 :         } else if (host_behavior->acre == 1) {
    1979           1 :                 ctrlr->acre_enabled = true;
    1980             :         } else {
    1981           1 :                 SPDK_ERRLOG("Host Behavior Support invalid acre: 0x%02x\n", host_behavior->acre);
    1982           1 :                 response->status.sct = SPDK_NVME_SCT_GENERIC;
    1983           1 :                 response->status.sc = SPDK_NVME_SC_INVALID_FIELD;
    1984           1 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1985             :         }
    1986           2 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    1987             : }
    1988             : 
    1989             : static int
    1990           0 : nvmf_ctrlr_set_features_keep_alive_timer(struct spdk_nvmf_request *req)
    1991             : {
    1992           0 :         struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
    1993           0 :         struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
    1994           0 :         struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl;
    1995             : 
    1996           0 :         SPDK_DEBUGLOG(nvmf, "Set Features - Keep Alive Timer (%u ms)\n", cmd->cdw11);
    1997             : 
    1998             :         /*
    1999             :          * if attempts to disable keep alive by setting kato to 0h
    2000             :          * a status value of keep alive invalid shall be returned
    2001             :          */
    2002           0 :         if (cmd->cdw11_bits.feat_keep_alive_timer.bits.kato == 0) {
    2003           0 :                 rsp->status.sc = SPDK_NVME_SC_KEEP_ALIVE_INVALID;
    2004           0 :         } else if (cmd->cdw11_bits.feat_keep_alive_timer.bits.kato < MIN_KEEP_ALIVE_TIMEOUT_IN_MS) {
    2005           0 :                 ctrlr->feat.keep_alive_timer.bits.kato = MIN_KEEP_ALIVE_TIMEOUT_IN_MS;
    2006             :         } else {
    2007             :                 /* round up to milliseconds */
    2008           0 :                 ctrlr->feat.keep_alive_timer.bits.kato = spdk_divide_round_up(
    2009           0 :                                         cmd->cdw11_bits.feat_keep_alive_timer.bits.kato,
    2010             :                                         KAS_DEFAULT_VALUE * KAS_TIME_UNIT_IN_MS) *
    2011             :                                 KAS_DEFAULT_VALUE * KAS_TIME_UNIT_IN_MS;
    2012             :         }
    2013             : 
    2014             :         /*
    2015             :          * if change the keep alive timeout value successfully
    2016             :          * update the keep alive poller.
    2017             :          */
    2018           0 :         if (cmd->cdw11_bits.feat_keep_alive_timer.bits.kato != 0) {
    2019           0 :                 if (ctrlr->keep_alive_poller != NULL) {
    2020           0 :                         spdk_poller_unregister(&ctrlr->keep_alive_poller);
    2021             :                 }
    2022           0 :                 ctrlr->keep_alive_poller = SPDK_POLLER_REGISTER(nvmf_ctrlr_keep_alive_poll, ctrlr,
    2023             :                                            ctrlr->feat.keep_alive_timer.bits.kato * 1000);
    2024             :         }
    2025             : 
    2026           0 :         SPDK_DEBUGLOG(nvmf, "Set Features - Keep Alive Timer set to %u ms\n",
    2027             :                       ctrlr->feat.keep_alive_timer.bits.kato);
    2028             : 
    2029           0 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    2030             : }
    2031             : 
    2032             : static int
    2033           0 : nvmf_ctrlr_set_features_number_of_queues(struct spdk_nvmf_request *req)
    2034             : {
    2035           0 :         struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
    2036           0 :         struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
    2037           0 :         struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl;
    2038             :         uint32_t count;
    2039             : 
    2040           0 :         SPDK_DEBUGLOG(nvmf, "Set Features - Number of Queues, cdw11 0x%x\n",
    2041             :                       req->cmd->nvme_cmd.cdw11);
    2042             : 
    2043           0 :         if (cmd->cdw11_bits.feat_num_of_queues.bits.ncqr == UINT16_MAX ||
    2044           0 :             cmd->cdw11_bits.feat_num_of_queues.bits.nsqr == UINT16_MAX) {
    2045           0 :                 rsp->status.sc = SPDK_NVME_SC_INVALID_FIELD;
    2046           0 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    2047             :         }
    2048             : 
    2049           0 :         count = spdk_bit_array_count_set(ctrlr->qpair_mask);
    2050             :         /* verify that the controller is ready to process commands */
    2051           0 :         if (count > 1) {
    2052           0 :                 SPDK_DEBUGLOG(nvmf, "Queue pairs already active!\n");
    2053           0 :                 rsp->status.sc = SPDK_NVME_SC_COMMAND_SEQUENCE_ERROR;
    2054             :         } else {
    2055             :                 /*
    2056             :                  * Ignore the value requested by the host -
    2057             :                  * always return the pre-configured value based on max_qpairs_allowed.
    2058             :                  */
    2059           0 :                 rsp->cdw0 = ctrlr->feat.number_of_queues.raw;
    2060             :         }
    2061             : 
    2062           0 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    2063             : }
    2064             : 
    2065             : SPDK_STATIC_ASSERT(sizeof(struct spdk_nvmf_ctrlr) == 4928,
    2066             :                    "Please check migration fields that need to be added or not");
    2067             : 
    2068             : static void
    2069           0 : nvmf_ctrlr_migr_data_copy(struct spdk_nvmf_ctrlr_migr_data *data,
    2070             :                           const struct spdk_nvmf_ctrlr_migr_data *data_src, size_t data_size)
    2071             : {
    2072           0 :         assert(data);
    2073           0 :         assert(data_src);
    2074           0 :         assert(data_size);
    2075             : 
    2076           0 :         memcpy(&data->regs, &data_src->regs, spdk_min(data->regs_size, data_src->regs_size));
    2077           0 :         memcpy(&data->feat, &data_src->feat, spdk_min(data->feat_size, data_src->feat_size));
    2078             : 
    2079             : #define SET_FIELD(field) \
    2080             :     if (offsetof(struct spdk_nvmf_ctrlr_migr_data, field) + sizeof(data->field) <= data_size) { \
    2081             :         data->field = data_src->field; \
    2082             :     } \
    2083             : 
    2084           0 :         SET_FIELD(cntlid);
    2085           0 :         SET_FIELD(acre);
    2086           0 :         SET_FIELD(num_aer_cids);
    2087           0 :         SET_FIELD(num_async_events);
    2088           0 :         SET_FIELD(notice_aen_mask);
    2089             : #undef SET_FIELD
    2090             : 
    2091             : #define SET_ARRAY(arr) \
    2092             :     if (offsetof(struct spdk_nvmf_ctrlr_migr_data, arr) + sizeof(data->arr) <= data_size) { \
    2093             :         memcpy(&data->arr, &data_src->arr, sizeof(data->arr)); \
    2094             :     } \
    2095             : 
    2096           0 :         SET_ARRAY(async_events);
    2097           0 :         SET_ARRAY(aer_cids);
    2098             : #undef SET_ARRAY
    2099           0 : }
    2100             : 
    2101             : int
    2102           0 : spdk_nvmf_ctrlr_save_migr_data(struct spdk_nvmf_ctrlr *ctrlr,
    2103             :                                struct spdk_nvmf_ctrlr_migr_data *data)
    2104             : {
    2105             :         struct spdk_nvmf_async_event_completion *event, *event_tmp;
    2106             :         uint32_t i;
    2107           0 :         struct spdk_nvmf_ctrlr_migr_data data_local = {
    2108             :                 .data_size = offsetof(struct spdk_nvmf_ctrlr_migr_data, unused),
    2109             :                 .regs_size = sizeof(struct spdk_nvmf_registers),
    2110             :                 .feat_size = sizeof(struct spdk_nvmf_ctrlr_feat)
    2111             :         };
    2112             : 
    2113           0 :         assert(data->data_size <= sizeof(data_local));
    2114           0 :         assert(spdk_get_thread() == ctrlr->thread);
    2115             : 
    2116           0 :         memcpy(&data_local.regs, &ctrlr->vcprop, sizeof(struct spdk_nvmf_registers));
    2117           0 :         memcpy(&data_local.feat, &ctrlr->feat, sizeof(struct spdk_nvmf_ctrlr_feat));
    2118             : 
    2119           0 :         data_local.cntlid = ctrlr->cntlid;
    2120           0 :         data_local.acre = ctrlr->acre_enabled;
    2121           0 :         data_local.num_aer_cids = ctrlr->nr_aer_reqs;
    2122             : 
    2123           0 :         STAILQ_FOREACH_SAFE(event, &ctrlr->async_events, link, event_tmp) {
    2124           0 :                 if (data_local.num_async_events + 1 > SPDK_NVMF_MIGR_MAX_PENDING_AERS) {
    2125           0 :                         SPDK_ERRLOG("ctrlr %p has too many pending AERs\n", ctrlr);
    2126           0 :                         break;
    2127             :                 }
    2128             : 
    2129           0 :                 data_local.async_events[data_local.num_async_events++].raw = event->event.raw;
    2130             :         }
    2131             : 
    2132           0 :         for (i = 0; i < ctrlr->nr_aer_reqs; i++) {
    2133           0 :                 struct spdk_nvmf_request *req = ctrlr->aer_req[i];
    2134           0 :                 data_local.aer_cids[i] = req->cmd->nvme_cmd.cid;
    2135             :         }
    2136           0 :         data_local.notice_aen_mask = ctrlr->notice_aen_mask;
    2137             : 
    2138           0 :         nvmf_ctrlr_migr_data_copy(data, &data_local, spdk_min(data->data_size, data_local.data_size));
    2139           0 :         return 0;
    2140             : }
    2141             : 
    2142             : int
    2143           0 : spdk_nvmf_ctrlr_restore_migr_data(struct spdk_nvmf_ctrlr *ctrlr,
    2144             :                                   const struct spdk_nvmf_ctrlr_migr_data *data)
    2145             : {
    2146             :         uint32_t i;
    2147           0 :         struct spdk_nvmf_ctrlr_migr_data data_local = {
    2148             :                 .data_size = offsetof(struct spdk_nvmf_ctrlr_migr_data, unused),
    2149             :                 .regs_size = sizeof(struct spdk_nvmf_registers),
    2150             :                 .feat_size = sizeof(struct spdk_nvmf_ctrlr_feat)
    2151             :         };
    2152             : 
    2153           0 :         assert(data->data_size <= sizeof(data_local));
    2154           0 :         assert(spdk_get_thread() == ctrlr->thread);
    2155             : 
    2156             :         /* local version of data should have defaults set before copy */
    2157           0 :         nvmf_ctrlr_migr_data_copy(&data_local, data, spdk_min(data->data_size, data_local.data_size));
    2158           0 :         memcpy(&ctrlr->vcprop, &data_local.regs, sizeof(struct spdk_nvmf_registers));
    2159           0 :         memcpy(&ctrlr->feat, &data_local.feat, sizeof(struct spdk_nvmf_ctrlr_feat));
    2160             : 
    2161           0 :         ctrlr->cntlid = data_local.cntlid;
    2162           0 :         ctrlr->acre_enabled = data_local.acre;
    2163             : 
    2164           0 :         for (i = 0; i < data_local.num_async_events; i++) {
    2165             :                 struct spdk_nvmf_async_event_completion *event;
    2166             : 
    2167           0 :                 event = calloc(1, sizeof(*event));
    2168           0 :                 if (!event) {
    2169           0 :                         return -ENOMEM;
    2170             :                 }
    2171             : 
    2172           0 :                 event->event.raw = data_local.async_events[i].raw;
    2173           0 :                 STAILQ_INSERT_TAIL(&ctrlr->async_events, event, link);
    2174             :         }
    2175           0 :         ctrlr->notice_aen_mask = data_local.notice_aen_mask;
    2176             : 
    2177           0 :         return 0;
    2178             : }
    2179             : 
    2180             : static int
    2181           0 : nvmf_ctrlr_set_features_async_event_configuration(struct spdk_nvmf_request *req)
    2182             : {
    2183           0 :         struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
    2184           0 :         struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
    2185             : 
    2186           0 :         SPDK_DEBUGLOG(nvmf, "Set Features - Async Event Configuration, cdw11 0x%08x\n",
    2187             :                       cmd->cdw11);
    2188           0 :         ctrlr->feat.async_event_configuration.raw = cmd->cdw11;
    2189           0 :         ctrlr->feat.async_event_configuration.bits.reserved1 = 0;
    2190           0 :         ctrlr->feat.async_event_configuration.bits.reserved2 = 0;
    2191           0 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    2192             : }
    2193             : 
    2194             : static int
    2195          10 : nvmf_ctrlr_async_event_request(struct spdk_nvmf_request *req)
    2196             : {
    2197          10 :         struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
    2198          10 :         struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl;
    2199             :         struct spdk_nvmf_async_event_completion *pending_event;
    2200             : 
    2201          10 :         SPDK_DEBUGLOG(nvmf, "Async Event Request\n");
    2202             : 
    2203             :         /* Four asynchronous events are supported for now */
    2204          10 :         if (ctrlr->nr_aer_reqs >= SPDK_NVMF_MAX_ASYNC_EVENTS) {
    2205           1 :                 SPDK_DEBUGLOG(nvmf, "AERL exceeded\n");
    2206           1 :                 rsp->status.sct = SPDK_NVME_SCT_COMMAND_SPECIFIC;
    2207           1 :                 rsp->status.sc = SPDK_NVME_SC_ASYNC_EVENT_REQUEST_LIMIT_EXCEEDED;
    2208           1 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    2209             :         }
    2210             : 
    2211           9 :         if (!STAILQ_EMPTY(&ctrlr->async_events)) {
    2212           4 :                 pending_event = STAILQ_FIRST(&ctrlr->async_events);
    2213           4 :                 rsp->cdw0 = pending_event->event.raw;
    2214           4 :                 STAILQ_REMOVE(&ctrlr->async_events, pending_event, spdk_nvmf_async_event_completion, link);
    2215           4 :                 free(pending_event);
    2216           4 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    2217             :         }
    2218             : 
    2219           5 :         ctrlr->aer_req[ctrlr->nr_aer_reqs++] = req;
    2220           5 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
    2221             : }
    2222             : 
    2223             : static void
    2224           0 : nvmf_get_firmware_slot_log_page(struct iovec *iovs, int iovcnt, uint64_t offset, uint32_t length)
    2225             : {
    2226           0 :         struct spdk_nvme_firmware_page fw_page;
    2227             :         size_t copy_len;
    2228           0 :         struct spdk_iov_xfer ix;
    2229             : 
    2230           0 :         spdk_iov_xfer_init(&ix, iovs, iovcnt);
    2231             : 
    2232           0 :         memset(&fw_page, 0, sizeof(fw_page));
    2233           0 :         fw_page.afi.active_slot = 1;
    2234           0 :         fw_page.afi.next_reset_slot = 0;
    2235           0 :         spdk_strcpy_pad(fw_page.revision[0], FW_VERSION, sizeof(fw_page.revision[0]), ' ');
    2236             : 
    2237           0 :         if (offset < sizeof(fw_page)) {
    2238           0 :                 copy_len = spdk_min(sizeof(fw_page) - offset, length);
    2239           0 :                 if (copy_len > 0) {
    2240           0 :                         spdk_iov_xfer_from_buf(&ix, (const char *)&fw_page + offset, copy_len);
    2241             :                 }
    2242             :         }
    2243           0 : }
    2244             : 
    2245             : /*
    2246             :  * Asynchronous Event Mask Bit
    2247             :  */
    2248             : enum spdk_nvme_async_event_mask_bit {
    2249             :         /* Mask Namespace Change Notification */
    2250             :         SPDK_NVME_ASYNC_EVENT_NS_ATTR_CHANGE_MASK_BIT           = 0,
    2251             :         /* Mask Asymmetric Namespace Access Change Notification */
    2252             :         SPDK_NVME_ASYNC_EVENT_ANA_CHANGE_MASK_BIT               = 1,
    2253             :         /* Mask Discovery Log Change Notification */
    2254             :         SPDK_NVME_ASYNC_EVENT_DISCOVERY_LOG_CHANGE_MASK_BIT     = 2,
    2255             :         /* Mask Reservation Log Page Available Notification */
    2256             :         SPDK_NVME_ASYNC_EVENT_RESERVATION_LOG_AVAIL_MASK_BIT    = 3,
    2257             :         /* Mask Error Event */
    2258             :         SPDK_NVME_ASYNC_EVENT_ERROR_MASK_BIT                    = 4,
    2259             :         /* 4 - 63 Reserved */
    2260             : };
    2261             : 
    2262             : static inline void
    2263          20 : nvmf_ctrlr_unmask_aen(struct spdk_nvmf_ctrlr *ctrlr,
    2264             :                       enum spdk_nvme_async_event_mask_bit mask)
    2265             : {
    2266          20 :         ctrlr->notice_aen_mask &= ~(1 << mask);
    2267          20 : }
    2268             : 
    2269             : static inline bool
    2270          11 : nvmf_ctrlr_mask_aen(struct spdk_nvmf_ctrlr *ctrlr,
    2271             :                     enum spdk_nvme_async_event_mask_bit mask)
    2272             : {
    2273          11 :         if (ctrlr->notice_aen_mask & (1 << mask)) {
    2274           5 :                 return false;
    2275             :         } else {
    2276           6 :                 ctrlr->notice_aen_mask |= (1 << mask);
    2277           6 :                 return true;
    2278             :         }
    2279             : }
    2280             : 
    2281             : /* we have to use the typedef in the function declaration to appease astyle. */
    2282             : typedef enum spdk_nvme_ana_state spdk_nvme_ana_state_t;
    2283             : 
    2284             : static inline spdk_nvme_ana_state_t
    2285          36 : nvmf_ctrlr_get_ana_state(struct spdk_nvmf_ctrlr *ctrlr, uint32_t anagrpid)
    2286             : {
    2287          36 :         if (!ctrlr->subsys->flags.ana_reporting) {
    2288          36 :                 return SPDK_NVME_ANA_OPTIMIZED_STATE;
    2289             :         }
    2290             : 
    2291           0 :         if (spdk_unlikely(ctrlr->listener == NULL)) {
    2292           0 :                 return SPDK_NVME_ANA_INACCESSIBLE_STATE;
    2293             :         }
    2294             : 
    2295           0 :         assert(anagrpid - 1 < ctrlr->subsys->max_nsid);
    2296           0 :         return ctrlr->listener->ana_state[anagrpid - 1];
    2297             : }
    2298             : 
    2299             : static spdk_nvme_ana_state_t
    2300           8 : nvmf_ctrlr_get_ana_state_from_nsid(struct spdk_nvmf_ctrlr *ctrlr, uint32_t nsid)
    2301             : {
    2302             :         struct spdk_nvmf_ns *ns;
    2303             : 
    2304             :         /* We do not have NVM subsystem specific ANA state. Hence if NSID is either
    2305             :          * SPDK_NVMF_GLOBAL_NS_TAG, invalid, or for inactive namespace, return
    2306             :          * the optimized state.
    2307             :          */
    2308           8 :         ns = nvmf_ctrlr_get_ns(ctrlr, nsid);
    2309           8 :         if (ns == NULL) {
    2310           0 :                 return SPDK_NVME_ANA_OPTIMIZED_STATE;
    2311             :         }
    2312             : 
    2313           8 :         return nvmf_ctrlr_get_ana_state(ctrlr, ns->anagrpid);
    2314             : }
    2315             : 
    2316             : static void
    2317           1 : nvmf_get_error_log_page(struct spdk_nvmf_ctrlr *ctrlr, struct iovec *iovs, int iovcnt,
    2318             :                         uint64_t offset, uint32_t length, uint32_t rae)
    2319             : {
    2320           1 :         if (!rae) {
    2321           1 :                 nvmf_ctrlr_unmask_aen(ctrlr, SPDK_NVME_ASYNC_EVENT_ERROR_MASK_BIT);
    2322             :         }
    2323             : 
    2324             :         /* TODO: actually fill out log page data */
    2325           1 : }
    2326             : 
    2327             : static void
    2328          17 : nvmf_get_ana_log_page(struct spdk_nvmf_ctrlr *ctrlr, struct iovec *iovs, int iovcnt,
    2329             :                       uint64_t offset, uint32_t length, uint32_t rae)
    2330             : {
    2331          17 :         struct spdk_nvme_ana_page ana_hdr;
    2332          17 :         struct spdk_nvme_ana_group_descriptor ana_desc;
    2333             :         size_t copy_len, copied_len;
    2334          17 :         uint32_t num_anagrp = 0, anagrpid;
    2335             :         struct spdk_nvmf_ns *ns;
    2336          17 :         struct spdk_iov_xfer ix;
    2337             : 
    2338          17 :         spdk_iov_xfer_init(&ix, iovs, iovcnt);
    2339             : 
    2340          17 :         if (length == 0) {
    2341           0 :                 goto done;
    2342             :         }
    2343             : 
    2344          17 :         if (offset >= sizeof(ana_hdr)) {
    2345          13 :                 offset -= sizeof(ana_hdr);
    2346             :         } else {
    2347          20 :                 for (anagrpid = 1; anagrpid <= ctrlr->subsys->max_nsid; anagrpid++) {
    2348          16 :                         if (ctrlr->subsys->ana_group[anagrpid - 1] > 0) {
    2349          10 :                                 num_anagrp++;
    2350             :                         }
    2351             :                 }
    2352             : 
    2353           4 :                 memset(&ana_hdr, 0, sizeof(ana_hdr));
    2354             : 
    2355           4 :                 ana_hdr.num_ana_group_desc = num_anagrp;
    2356             :                 /* TODO: Support Change Count. */
    2357           4 :                 ana_hdr.change_count = 0;
    2358             : 
    2359           4 :                 copy_len = spdk_min(sizeof(ana_hdr) - offset, length);
    2360           4 :                 copied_len = spdk_iov_xfer_from_buf(&ix, (const char *)&ana_hdr + offset, copy_len);
    2361           4 :                 assert(copied_len == copy_len);
    2362           4 :                 length -= copied_len;
    2363           4 :                 offset = 0;
    2364             :         }
    2365             : 
    2366          17 :         if (length == 0) {
    2367           2 :                 goto done;
    2368             :         }
    2369             : 
    2370          37 :         for (anagrpid = 1; anagrpid <= ctrlr->subsys->max_nsid; anagrpid++) {
    2371          37 :                 if (ctrlr->subsys->ana_group[anagrpid - 1] == 0) {
    2372           7 :                         continue;
    2373             :                 }
    2374             : 
    2375          30 :                 if (offset >= sizeof(ana_desc)) {
    2376          12 :                         offset -= sizeof(ana_desc);
    2377             :                 } else {
    2378          18 :                         memset(&ana_desc, 0, sizeof(ana_desc));
    2379             : 
    2380          18 :                         ana_desc.ana_group_id = anagrpid;
    2381          18 :                         ana_desc.num_of_nsid = ctrlr->subsys->ana_group[anagrpid - 1];
    2382          18 :                         ana_desc.ana_state = nvmf_ctrlr_get_ana_state(ctrlr, anagrpid);
    2383             : 
    2384          18 :                         copy_len = spdk_min(sizeof(ana_desc) - offset, length);
    2385          18 :                         copied_len = spdk_iov_xfer_from_buf(&ix, (const char *)&ana_desc + offset,
    2386             :                                                             copy_len);
    2387          18 :                         assert(copied_len == copy_len);
    2388          18 :                         length -= copied_len;
    2389          18 :                         offset = 0;
    2390             : 
    2391          18 :                         if (length == 0) {
    2392          10 :                                 goto done;
    2393             :                         }
    2394             :                 }
    2395             : 
    2396             :                 /* TODO: Revisit here about O(n^2) cost if we have subsystem with
    2397             :                  * many namespaces in the future.
    2398             :                  */
    2399          86 :                 for (ns = spdk_nvmf_subsystem_get_first_ns(ctrlr->subsys); ns != NULL;
    2400          66 :                      ns = spdk_nvmf_subsystem_get_next_ns(ctrlr->subsys, ns)) {
    2401          71 :                         if (ns->anagrpid != anagrpid) {
    2402          39 :                                 continue;
    2403             :                         }
    2404             : 
    2405          32 :                         if (offset >= sizeof(uint32_t)) {
    2406          16 :                                 offset -= sizeof(uint32_t);
    2407          16 :                                 continue;
    2408             :                         }
    2409             : 
    2410          16 :                         copy_len = spdk_min(sizeof(uint32_t) - offset, length);
    2411          16 :                         copied_len = spdk_iov_xfer_from_buf(&ix, (const char *)&ns->nsid + offset,
    2412             :                                                             copy_len);
    2413          16 :                         assert(copied_len == copy_len);
    2414          16 :                         length -= copied_len;
    2415          16 :                         offset = 0;
    2416             : 
    2417          16 :                         if (length == 0) {
    2418           5 :                                 goto done;
    2419             :                         }
    2420             :                 }
    2421             :         }
    2422             : 
    2423          17 : done:
    2424          17 :         if (!rae) {
    2425          17 :                 nvmf_ctrlr_unmask_aen(ctrlr, SPDK_NVME_ASYNC_EVENT_ANA_CHANGE_MASK_BIT);
    2426             :         }
    2427          17 : }
    2428             : 
    2429             : void
    2430           0 : nvmf_ctrlr_ns_changed(struct spdk_nvmf_ctrlr *ctrlr, uint32_t nsid)
    2431             : {
    2432           0 :         uint16_t max_changes = SPDK_COUNTOF(ctrlr->changed_ns_list.ns_list);
    2433             :         uint16_t i;
    2434           0 :         bool found = false;
    2435             : 
    2436           0 :         for (i = 0; i < ctrlr->changed_ns_list_count; i++) {
    2437           0 :                 if (ctrlr->changed_ns_list.ns_list[i] == nsid) {
    2438             :                         /* nsid is already in the list */
    2439           0 :                         found = true;
    2440           0 :                         break;
    2441             :                 }
    2442             :         }
    2443             : 
    2444           0 :         if (!found) {
    2445           0 :                 if (ctrlr->changed_ns_list_count == max_changes) {
    2446             :                         /* Out of space - set first entry to FFFFFFFFh and zero-fill the rest. */
    2447           0 :                         ctrlr->changed_ns_list.ns_list[0] = 0xFFFFFFFFu;
    2448           0 :                         for (i = 1; i < max_changes; i++) {
    2449           0 :                                 ctrlr->changed_ns_list.ns_list[i] = 0;
    2450             :                         }
    2451             :                 } else {
    2452           0 :                         ctrlr->changed_ns_list.ns_list[ctrlr->changed_ns_list_count++] = nsid;
    2453             :                 }
    2454             :         }
    2455           0 : }
    2456             : 
    2457             : static void
    2458           2 : nvmf_get_changed_ns_list_log_page(struct spdk_nvmf_ctrlr *ctrlr,
    2459             :                                   struct iovec *iovs, int iovcnt, uint64_t offset, uint32_t length, uint32_t rae)
    2460             : {
    2461             :         size_t copy_length;
    2462           2 :         struct spdk_iov_xfer ix;
    2463             : 
    2464           2 :         spdk_iov_xfer_init(&ix, iovs, iovcnt);
    2465             : 
    2466           2 :         if (offset < sizeof(ctrlr->changed_ns_list)) {
    2467           2 :                 copy_length = spdk_min(length, sizeof(ctrlr->changed_ns_list) - offset);
    2468           2 :                 if (copy_length) {
    2469           2 :                         spdk_iov_xfer_from_buf(&ix, (char *)&ctrlr->changed_ns_list + offset, copy_length);
    2470             :                 }
    2471             :         }
    2472             : 
    2473             :         /* Clear log page each time it is read */
    2474           2 :         ctrlr->changed_ns_list_count = 0;
    2475           2 :         memset(&ctrlr->changed_ns_list, 0, sizeof(ctrlr->changed_ns_list));
    2476             : 
    2477           2 :         if (!rae) {
    2478           1 :                 nvmf_ctrlr_unmask_aen(ctrlr, SPDK_NVME_ASYNC_EVENT_NS_ATTR_CHANGE_MASK_BIT);
    2479             :         }
    2480           2 : }
    2481             : 
    2482             : /* The structure can be modified if we provide support for other commands in future */
    2483             : static const struct spdk_nvme_cmds_and_effect_log_page g_cmds_and_effect_log_page = {
    2484             :         .admin_cmds_supported = {
    2485             :                 /* CSUPP, LBCC, NCC, NIC, CCC, CSE */
    2486             :                 /* Get Log Page */
    2487             :                 [SPDK_NVME_OPC_GET_LOG_PAGE]            = {1, 0, 0, 0, 0, 0, 0, 0},
    2488             :                 /* Identify */
    2489             :                 [SPDK_NVME_OPC_IDENTIFY]                = {1, 0, 0, 0, 0, 0, 0, 0},
    2490             :                 /* Abort */
    2491             :                 [SPDK_NVME_OPC_ABORT]                   = {1, 0, 0, 0, 0, 0, 0, 0},
    2492             :                 /* Set Features */
    2493             :                 [SPDK_NVME_OPC_SET_FEATURES]            = {1, 0, 0, 0, 0, 0, 0, 0},
    2494             :                 /* Get Features */
    2495             :                 [SPDK_NVME_OPC_GET_FEATURES]            = {1, 0, 0, 0, 0, 0, 0, 0},
    2496             :                 /* Async Event Request */
    2497             :                 [SPDK_NVME_OPC_ASYNC_EVENT_REQUEST]     = {1, 0, 0, 0, 0, 0, 0, 0},
    2498             :                 /* Keep Alive */
    2499             :                 [SPDK_NVME_OPC_KEEP_ALIVE]              = {1, 0, 0, 0, 0, 0, 0, 0},
    2500             :         },
    2501             :         .io_cmds_supported = {
    2502             :                 /* FLUSH */
    2503             :                 [SPDK_NVME_OPC_FLUSH]                   = {1, 1, 0, 0, 0, 0, 0, 0},
    2504             :                 /* WRITE */
    2505             :                 [SPDK_NVME_OPC_WRITE]                   = {1, 1, 0, 0, 0, 0, 0, 0},
    2506             :                 /* READ */
    2507             :                 [SPDK_NVME_OPC_READ]                    = {1, 0, 0, 0, 0, 0, 0, 0},
    2508             :                 /* WRITE ZEROES */
    2509             :                 [SPDK_NVME_OPC_WRITE_ZEROES]            = {1, 1, 0, 0, 0, 0, 0, 0},
    2510             :                 /* DATASET MANAGEMENT */
    2511             :                 [SPDK_NVME_OPC_DATASET_MANAGEMENT]      = {1, 1, 0, 0, 0, 0, 0, 0},
    2512             :                 /* COMPARE */
    2513             :                 [SPDK_NVME_OPC_COMPARE]                 = {1, 0, 0, 0, 0, 0, 0, 0},
    2514             :                 /* ZONE MANAGEMENT SEND */
    2515             :                 [SPDK_NVME_OPC_ZONE_MGMT_SEND]          = {1, 1, 0, 0, 0, 0, 0, 0},
    2516             :                 /* ZONE MANAGEMENT RECEIVE */
    2517             :                 [SPDK_NVME_OPC_ZONE_MGMT_RECV]          = {1, 0, 0, 0, 0, 0, 0, 0},
    2518             :                 /* COPY */
    2519             :                 [SPDK_NVME_OPC_COPY]                    = {1, 1, 0, 0, 0, 0, 0, 0},
    2520             :         },
    2521             : };
    2522             : 
    2523             : static void
    2524           0 : nvmf_get_cmds_and_effects_log_page(struct spdk_nvmf_ctrlr *ctrlr, struct iovec *iovs, int iovcnt,
    2525             :                                    uint64_t offset, uint32_t length)
    2526             : {
    2527           0 :         uint32_t page_size = sizeof(struct spdk_nvme_cmds_and_effect_log_page);
    2528           0 :         size_t copy_len = 0;
    2529           0 :         struct spdk_nvme_cmds_and_effect_log_page cmds_and_effect_log_page = g_cmds_and_effect_log_page;
    2530           0 :         struct spdk_nvme_cmds_and_effect_entry csupp_and_lbcc_effect_entry = {1, 1, 0, 0, 0, 0, 0, 0};
    2531           0 :         struct spdk_iov_xfer ix;
    2532             : 
    2533           0 :         spdk_iov_xfer_init(&ix, iovs, iovcnt);
    2534             : 
    2535           0 :         if (offset < page_size) {
    2536           0 :                 if (ctrlr->subsys->zone_append_supported) {
    2537           0 :                         cmds_and_effect_log_page.io_cmds_supported[SPDK_NVME_OPC_ZONE_APPEND] =
    2538             :                                 csupp_and_lbcc_effect_entry;
    2539             :                 }
    2540           0 :                 copy_len = spdk_min(page_size - offset, length);
    2541           0 :                 spdk_iov_xfer_from_buf(&ix, (char *)(&cmds_and_effect_log_page) + offset, copy_len);
    2542             :         }
    2543           0 : }
    2544             : 
    2545             : static void
    2546           1 : nvmf_get_reservation_notification_log_page(struct spdk_nvmf_ctrlr *ctrlr,
    2547             :                 struct iovec *iovs, int iovcnt, uint64_t offset, uint32_t length, uint32_t rae)
    2548             : {
    2549             :         uint32_t unit_log_len, avail_log_len, next_pos, copy_len;
    2550             :         struct spdk_nvmf_reservation_log *log, *log_tmp;
    2551           1 :         struct spdk_iov_xfer ix;
    2552             : 
    2553           1 :         spdk_iov_xfer_init(&ix, iovs, iovcnt);
    2554             : 
    2555           1 :         unit_log_len = sizeof(struct spdk_nvme_reservation_notification_log);
    2556             :         /* No available log, return zeroed log pages */
    2557           1 :         if (!ctrlr->num_avail_log_pages) {
    2558           0 :                 return;
    2559             :         }
    2560             : 
    2561           1 :         avail_log_len = ctrlr->num_avail_log_pages * unit_log_len;
    2562           1 :         if (offset >= avail_log_len) {
    2563           0 :                 return;
    2564             :         }
    2565             : 
    2566           1 :         next_pos = 0;
    2567           3 :         TAILQ_FOREACH_SAFE(log, &ctrlr->log_head, link, log_tmp) {
    2568           3 :                 TAILQ_REMOVE(&ctrlr->log_head, log, link);
    2569           3 :                 ctrlr->num_avail_log_pages--;
    2570             : 
    2571           3 :                 next_pos += unit_log_len;
    2572           3 :                 if (next_pos > offset) {
    2573           3 :                         copy_len = spdk_min(next_pos - offset, length);
    2574           3 :                         spdk_iov_xfer_from_buf(&ix, &log->log, copy_len);
    2575           3 :                         length -= copy_len;
    2576           3 :                         offset += copy_len;
    2577             :                 }
    2578           3 :                 free(log);
    2579             : 
    2580           3 :                 if (length == 0) {
    2581           1 :                         break;
    2582             :                 }
    2583             :         }
    2584             : 
    2585           1 :         if (!rae) {
    2586           1 :                 nvmf_ctrlr_unmask_aen(ctrlr, SPDK_NVME_ASYNC_EVENT_RESERVATION_LOG_AVAIL_MASK_BIT);
    2587             :         }
    2588           1 :         return;
    2589             : }
    2590             : 
    2591             : static int
    2592           6 : nvmf_ctrlr_get_log_page(struct spdk_nvmf_request *req)
    2593             : {
    2594           6 :         struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
    2595           6 :         struct spdk_nvmf_subsystem *subsystem = ctrlr->subsys;
    2596           6 :         struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
    2597           6 :         struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl;
    2598           6 :         struct spdk_nvme_transport_id cmd_source_trid;
    2599             :         uint64_t offset, len;
    2600             :         uint32_t rae, numdl, numdu;
    2601             :         uint8_t lid;
    2602             : 
    2603           6 :         if (req->iovcnt < 1) {
    2604           1 :                 SPDK_DEBUGLOG(nvmf, "get log command with no buffer\n");
    2605           1 :                 response->status.sct = SPDK_NVME_SCT_GENERIC;
    2606           1 :                 response->status.sc = SPDK_NVME_SC_INVALID_FIELD;
    2607           1 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    2608             :         }
    2609             : 
    2610           5 :         offset = (uint64_t)cmd->cdw12 | ((uint64_t)cmd->cdw13 << 32);
    2611           5 :         if (offset & 3) {
    2612           1 :                 SPDK_ERRLOG("Invalid log page offset 0x%" PRIx64 "\n", offset);
    2613           1 :                 response->status.sct = SPDK_NVME_SCT_GENERIC;
    2614           1 :                 response->status.sc = SPDK_NVME_SC_INVALID_FIELD;
    2615           1 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    2616             :         }
    2617             : 
    2618           4 :         rae = cmd->cdw10_bits.get_log_page.rae;
    2619           4 :         numdl = cmd->cdw10_bits.get_log_page.numdl;
    2620           4 :         numdu = cmd->cdw11_bits.get_log_page.numdu;
    2621           4 :         len = ((numdu << 16) + numdl + (uint64_t)1) * 4;
    2622           4 :         if (len > req->length) {
    2623           0 :                 SPDK_ERRLOG("Get log page: len (%" PRIu64 ") > buf size (%u)\n",
    2624             :                             len, req->length);
    2625           0 :                 response->status.sct = SPDK_NVME_SCT_GENERIC;
    2626           0 :                 response->status.sc = SPDK_NVME_SC_INVALID_FIELD;
    2627           0 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    2628             :         }
    2629             : 
    2630           4 :         lid = cmd->cdw10_bits.get_log_page.lid;
    2631           4 :         SPDK_DEBUGLOG(nvmf, "Get log page: LID=0x%02X offset=0x%" PRIx64 " len=0x%" PRIx64 " rae=%u\n",
    2632             :                       lid, offset, len, rae);
    2633             : 
    2634           4 :         if (spdk_nvmf_subsystem_is_discovery(subsystem)) {
    2635           0 :                 switch (lid) {
    2636           0 :                 case SPDK_NVME_LOG_DISCOVERY:
    2637           0 :                         if (spdk_nvmf_qpair_get_listen_trid(req->qpair, &cmd_source_trid)) {
    2638           0 :                                 SPDK_ERRLOG("Failed to get LOG_DISCOVERY source trid\n");
    2639           0 :                                 response->status.sct = SPDK_NVME_SCT_GENERIC;
    2640           0 :                                 response->status.sc = SPDK_NVME_SC_INTERNAL_DEVICE_ERROR;
    2641           0 :                                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    2642             :                         }
    2643           0 :                         nvmf_get_discovery_log_page(subsystem->tgt, ctrlr->hostnqn, req->iov, req->iovcnt,
    2644             :                                                     offset, len, &cmd_source_trid);
    2645           0 :                         if (!rae) {
    2646           0 :                                 nvmf_ctrlr_unmask_aen(ctrlr, SPDK_NVME_ASYNC_EVENT_DISCOVERY_LOG_CHANGE_MASK_BIT);
    2647             :                         }
    2648           0 :                         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    2649           0 :                 default:
    2650           0 :                         goto invalid_log_page;
    2651             :                 }
    2652             :         } else {
    2653           4 :                 if (offset > len) {
    2654           0 :                         SPDK_ERRLOG("Get log page: offset (%" PRIu64 ") > len (%" PRIu64 ")\n",
    2655             :                                     offset, len);
    2656           0 :                         response->status.sct = SPDK_NVME_SCT_GENERIC;
    2657           0 :                         response->status.sc = SPDK_NVME_SC_INVALID_FIELD;
    2658           0 :                         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    2659             :                 }
    2660             : 
    2661           4 :                 switch (lid) {
    2662           1 :                 case SPDK_NVME_LOG_ERROR:
    2663           1 :                         nvmf_get_error_log_page(ctrlr, req->iov, req->iovcnt, offset, len, rae);
    2664           1 :                         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    2665           0 :                 case SPDK_NVME_LOG_HEALTH_INFORMATION:
    2666             :                         /* TODO: actually fill out log page data */
    2667           0 :                         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    2668           0 :                 case SPDK_NVME_LOG_FIRMWARE_SLOT:
    2669           0 :                         nvmf_get_firmware_slot_log_page(req->iov, req->iovcnt, offset, len);
    2670           0 :                         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    2671           0 :                 case SPDK_NVME_LOG_ASYMMETRIC_NAMESPACE_ACCESS:
    2672           0 :                         if (subsystem->flags.ana_reporting) {
    2673           0 :                                 nvmf_get_ana_log_page(ctrlr, req->iov, req->iovcnt, offset, len, rae);
    2674           0 :                                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    2675             :                         } else {
    2676           0 :                                 goto invalid_log_page;
    2677             :                         }
    2678           0 :                 case SPDK_NVME_LOG_COMMAND_EFFECTS_LOG:
    2679           0 :                         nvmf_get_cmds_and_effects_log_page(ctrlr, req->iov, req->iovcnt, offset, len);
    2680           0 :                         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    2681           2 :                 case SPDK_NVME_LOG_CHANGED_NS_LIST:
    2682           2 :                         nvmf_get_changed_ns_list_log_page(ctrlr, req->iov, req->iovcnt, offset, len, rae);
    2683           2 :                         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    2684           0 :                 case SPDK_NVME_LOG_RESERVATION_NOTIFICATION:
    2685           0 :                         nvmf_get_reservation_notification_log_page(ctrlr, req->iov, req->iovcnt, offset, len, rae);
    2686           0 :                         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    2687           1 :                 default:
    2688           1 :                         goto invalid_log_page;
    2689             :                 }
    2690             :         }
    2691             : 
    2692           1 : invalid_log_page:
    2693           1 :         SPDK_INFOLOG(nvmf, "Unsupported Get Log Page 0x%02X\n", lid);
    2694           1 :         response->status.sct = SPDK_NVME_SCT_GENERIC;
    2695           1 :         response->status.sc = SPDK_NVME_SC_INVALID_FIELD;
    2696           1 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    2697             : }
    2698             : 
    2699             : static struct spdk_nvmf_ns *
    2700          11 : _nvmf_ctrlr_get_ns_safe(struct spdk_nvmf_ctrlr *ctrlr,
    2701             :                         uint32_t nsid,
    2702             :                         struct spdk_nvme_cpl *rsp)
    2703             : {
    2704             :         struct spdk_nvmf_ns *ns;
    2705          11 :         if (nsid == 0 || nsid > ctrlr->subsys->max_nsid) {
    2706           5 :                 SPDK_ERRLOG("Identify Namespace for invalid NSID %u\n", nsid);
    2707           5 :                 rsp->status.sct = SPDK_NVME_SCT_GENERIC;
    2708           5 :                 rsp->status.sc = SPDK_NVME_SC_INVALID_NAMESPACE_OR_FORMAT;
    2709           5 :                 return NULL;
    2710             :         }
    2711             : 
    2712           6 :         ns = nvmf_ctrlr_get_ns(ctrlr, nsid);
    2713           6 :         if (ns == NULL || ns->bdev == NULL) {
    2714             :                 /*
    2715             :                  * Inactive namespaces should return a zero filled data structure.
    2716             :                  * The data buffer is already zeroed by nvmf_ctrlr_process_admin_cmd(),
    2717             :                  * so we can just return early here.
    2718             :                  */
    2719           2 :                 SPDK_DEBUGLOG(nvmf, "Identify Namespace for inactive NSID %u\n", nsid);
    2720           2 :                 rsp->status.sct = SPDK_NVME_SCT_GENERIC;
    2721           2 :                 rsp->status.sc = SPDK_NVME_SC_SUCCESS;
    2722           2 :                 return NULL;
    2723             :         }
    2724           4 :         return ns;
    2725             : }
    2726             : 
    2727             : int
    2728           7 : spdk_nvmf_ctrlr_identify_ns(struct spdk_nvmf_ctrlr *ctrlr,
    2729             :                             struct spdk_nvme_cmd *cmd,
    2730             :                             struct spdk_nvme_cpl *rsp,
    2731             :                             struct spdk_nvme_ns_data *nsdata)
    2732             : {
    2733           7 :         struct spdk_nvmf_subsystem *subsystem = ctrlr->subsys;
    2734             :         struct spdk_nvmf_ns *ns;
    2735             :         uint32_t max_num_blocks, format_index;
    2736             :         enum spdk_nvme_ana_state ana_state;
    2737             : 
    2738           7 :         ns = _nvmf_ctrlr_get_ns_safe(ctrlr, cmd->nsid, rsp);
    2739           7 :         if (ns == NULL) {
    2740           5 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    2741             :         }
    2742             : 
    2743           2 :         nvmf_bdev_ctrlr_identify_ns(ns, nsdata, ctrlr->dif_insert_or_strip);
    2744             : 
    2745           2 :         assert(ctrlr->admin_qpair);
    2746             : 
    2747           2 :         format_index = spdk_nvme_ns_get_format_index(nsdata);
    2748             : 
    2749             :         /* Due to bug in the Linux kernel NVMe driver we have to set noiob no larger than mdts */
    2750           2 :         max_num_blocks = ctrlr->admin_qpair->transport->opts.max_io_size /
    2751           2 :                          (1U << nsdata->lbaf[format_index].lbads);
    2752           2 :         if (nsdata->noiob > max_num_blocks) {
    2753           0 :                 nsdata->noiob = max_num_blocks;
    2754             :         }
    2755             : 
    2756             :         /* Set NOWS equal to Controller MDTS */
    2757           2 :         if (nsdata->nsfeat.optperf) {
    2758           0 :                 nsdata->nows = max_num_blocks - 1;
    2759             :         }
    2760             : 
    2761           2 :         if (subsystem->flags.ana_reporting) {
    2762           0 :                 assert(ns->anagrpid - 1 < subsystem->max_nsid);
    2763           0 :                 nsdata->anagrpid = ns->anagrpid;
    2764             : 
    2765           0 :                 ana_state = nvmf_ctrlr_get_ana_state(ctrlr, ns->anagrpid);
    2766           0 :                 if (ana_state == SPDK_NVME_ANA_INACCESSIBLE_STATE ||
    2767             :                     ana_state == SPDK_NVME_ANA_PERSISTENT_LOSS_STATE) {
    2768           0 :                         nsdata->nuse = 0;
    2769             :                 }
    2770             :         }
    2771             : 
    2772           2 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    2773             : }
    2774             : 
    2775             : static void
    2776           3 : nvmf_ctrlr_populate_oacs(struct spdk_nvmf_ctrlr *ctrlr,
    2777             :                          struct spdk_nvme_ctrlr_data *cdata)
    2778             : {
    2779           3 :         cdata->oacs = ctrlr->cdata.oacs;
    2780             : 
    2781           3 :         cdata->oacs.virtualization_management =
    2782           3 :                 g_nvmf_custom_admin_cmd_hdlrs[SPDK_NVME_OPC_VIRTUALIZATION_MANAGEMENT].hdlr != NULL;
    2783           6 :         cdata->oacs.nvme_mi = g_nvmf_custom_admin_cmd_hdlrs[SPDK_NVME_OPC_NVME_MI_SEND].hdlr != NULL
    2784           3 :                               && g_nvmf_custom_admin_cmd_hdlrs[SPDK_NVME_OPC_NVME_MI_RECEIVE].hdlr != NULL;
    2785           6 :         cdata->oacs.directives = g_nvmf_custom_admin_cmd_hdlrs[SPDK_NVME_OPC_DIRECTIVE_SEND].hdlr != NULL
    2786           3 :                                  && g_nvmf_custom_admin_cmd_hdlrs[SPDK_NVME_OPC_DIRECTIVE_RECEIVE].hdlr != NULL;
    2787           3 :         cdata->oacs.device_self_test =
    2788           3 :                 g_nvmf_custom_admin_cmd_hdlrs[SPDK_NVME_OPC_DEVICE_SELF_TEST].hdlr != NULL;
    2789           6 :         cdata->oacs.ns_manage = g_nvmf_custom_admin_cmd_hdlrs[SPDK_NVME_OPC_NS_MANAGEMENT].hdlr != NULL
    2790           3 :                                 && g_nvmf_custom_admin_cmd_hdlrs[SPDK_NVME_OPC_NS_ATTACHMENT].hdlr != NULL;
    2791           6 :         cdata->oacs.firmware = g_nvmf_custom_admin_cmd_hdlrs[SPDK_NVME_OPC_FIRMWARE_IMAGE_DOWNLOAD].hdlr !=
    2792             :                                NULL
    2793           3 :                                && g_nvmf_custom_admin_cmd_hdlrs[SPDK_NVME_OPC_FIRMWARE_COMMIT].hdlr != NULL;
    2794           3 :         cdata->oacs.format =
    2795           3 :                 g_nvmf_custom_admin_cmd_hdlrs[SPDK_NVME_OPC_FORMAT_NVM].hdlr != NULL;
    2796           6 :         cdata->oacs.security = g_nvmf_custom_admin_cmd_hdlrs[SPDK_NVME_OPC_SECURITY_SEND].hdlr != NULL
    2797           3 :                                && g_nvmf_custom_admin_cmd_hdlrs[SPDK_NVME_OPC_SECURITY_RECEIVE].hdlr != NULL;
    2798           3 :         cdata->oacs.get_lba_status = g_nvmf_custom_admin_cmd_hdlrs[SPDK_NVME_OPC_GET_LBA_STATUS].hdlr !=
    2799             :                                      NULL;
    2800           3 : }
    2801             : 
    2802             : int
    2803           3 : spdk_nvmf_ctrlr_identify_ctrlr(struct spdk_nvmf_ctrlr *ctrlr, struct spdk_nvme_ctrlr_data *cdata)
    2804             : {
    2805           3 :         struct spdk_nvmf_subsystem *subsystem = ctrlr->subsys;
    2806             :         struct spdk_nvmf_transport *transport;
    2807             : 
    2808             :         /*
    2809             :          * Common fields for discovery and NVM subsystems
    2810             :          */
    2811           3 :         assert(ctrlr->admin_qpair);
    2812           3 :         transport = ctrlr->admin_qpair->transport;
    2813           3 :         spdk_strcpy_pad(cdata->fr, FW_VERSION, sizeof(cdata->fr), ' ');
    2814           3 :         assert((transport->opts.max_io_size % 4096) == 0);
    2815           3 :         cdata->mdts = spdk_u32log2(transport->opts.max_io_size / 4096);
    2816           3 :         cdata->cntlid = ctrlr->cntlid;
    2817           3 :         cdata->ver = ctrlr->vcprop.vs;
    2818           3 :         cdata->aerl = ctrlr->cdata.aerl;
    2819           3 :         cdata->lpa.edlp = 1;
    2820           3 :         cdata->elpe = 127;
    2821           3 :         cdata->maxcmd = transport->opts.max_queue_depth;
    2822           3 :         cdata->sgls = ctrlr->cdata.sgls;
    2823           3 :         cdata->fuses = ctrlr->cdata.fuses;
    2824           3 :         cdata->acwu = 0; /* ACWU is 0-based. */
    2825           3 :         if (subsystem->flags.ana_reporting) {
    2826           0 :                 cdata->mnan = subsystem->max_nsid;
    2827             :         }
    2828           3 :         spdk_strcpy_pad(cdata->subnqn, subsystem->subnqn, sizeof(cdata->subnqn), '\0');
    2829             : 
    2830           3 :         SPDK_DEBUGLOG(nvmf, "ctrlr data: maxcmd 0x%x\n", cdata->maxcmd);
    2831           3 :         SPDK_DEBUGLOG(nvmf, "sgls data: 0x%x\n", from_le32(&cdata->sgls));
    2832             : 
    2833             : 
    2834           3 :         if (spdk_nvmf_subsystem_is_discovery(subsystem)) {
    2835             :                 /*
    2836             :                  * NVM Discovery subsystem fields
    2837             :                  */
    2838           0 :                 cdata->oaes.discovery_log_change_notices = 1;
    2839             :         } else {
    2840           3 :                 cdata->vid = ctrlr->cdata.vid;
    2841           3 :                 cdata->ssvid = ctrlr->cdata.ssvid;
    2842           3 :                 cdata->ieee[0] = ctrlr->cdata.ieee[0];
    2843           3 :                 cdata->ieee[1] = ctrlr->cdata.ieee[1];
    2844           3 :                 cdata->ieee[2] = ctrlr->cdata.ieee[2];
    2845             : 
    2846             :                 /*
    2847             :                  * NVM subsystem fields (reserved for discovery subsystems)
    2848             :                  */
    2849           3 :                 spdk_strcpy_pad(cdata->mn, spdk_nvmf_subsystem_get_mn(subsystem), sizeof(cdata->mn), ' ');
    2850           3 :                 spdk_strcpy_pad(cdata->sn, spdk_nvmf_subsystem_get_sn(subsystem), sizeof(cdata->sn), ' ');
    2851           3 :                 cdata->kas = ctrlr->cdata.kas;
    2852             : 
    2853           3 :                 cdata->rab = 6;
    2854           3 :                 cdata->cmic.multi_port = 1;
    2855           3 :                 cdata->cmic.multi_ctrlr = 1;
    2856           3 :                 cdata->oaes.ns_attribute_notices = 1;
    2857           3 :                 cdata->ctratt.bits.host_id_exhid_supported = 1;
    2858           3 :                 cdata->ctratt.bits.fdps = ctrlr->subsys->fdp_supported;
    2859             :                 /* We do not have any actual limitation to the number of abort commands.
    2860             :                  * We follow the recommendation by the NVMe specification.
    2861             :                  */
    2862           3 :                 cdata->acl = NVMF_ABORT_COMMAND_LIMIT;
    2863           3 :                 cdata->frmw.slot1_ro = 1;
    2864           3 :                 cdata->frmw.num_slots = 1;
    2865             : 
    2866           3 :                 cdata->lpa.celp = 1; /* Command Effects log page supported */
    2867             : 
    2868           3 :                 cdata->sqes.min = 6;
    2869           3 :                 cdata->sqes.max = 6;
    2870           3 :                 cdata->cqes.min = 4;
    2871           3 :                 cdata->cqes.max = 4;
    2872           3 :                 cdata->nn = subsystem->max_nsid;
    2873           3 :                 cdata->vwc.present = 1;
    2874           3 :                 cdata->vwc.flush_broadcast = SPDK_NVME_FLUSH_BROADCAST_NOT_SUPPORTED;
    2875             : 
    2876           3 :                 cdata->nvmf_specific = ctrlr->cdata.nvmf_specific;
    2877             : 
    2878           3 :                 cdata->oncs.compare = ctrlr->cdata.oncs.compare;
    2879           3 :                 cdata->oncs.dsm = nvmf_ctrlr_dsm_supported(ctrlr);
    2880           3 :                 cdata->oncs.write_zeroes = nvmf_ctrlr_write_zeroes_supported(ctrlr);
    2881           3 :                 cdata->oncs.reservations = ctrlr->cdata.oncs.reservations;
    2882           3 :                 cdata->oncs.copy = ctrlr->cdata.oncs.copy;
    2883           3 :                 cdata->ocfs.copy_format0 = cdata->oncs.copy;
    2884           3 :                 if (subsystem->flags.ana_reporting) {
    2885             :                         /* Asymmetric Namespace Access Reporting is supported. */
    2886           0 :                         cdata->cmic.ana_reporting = 1;
    2887           0 :                         cdata->oaes.ana_change_notices = 1;
    2888             : 
    2889           0 :                         cdata->anatt = ANA_TRANSITION_TIME_IN_SEC;
    2890             :                         /* ANA Change state is not used, and ANA Persistent Loss state
    2891             :                          * is not supported for now.
    2892             :                          */
    2893           0 :                         cdata->anacap.ana_optimized_state = 1;
    2894           0 :                         cdata->anacap.ana_non_optimized_state = 1;
    2895           0 :                         cdata->anacap.ana_inaccessible_state = 1;
    2896             :                         /* ANAGRPID does not change while namespace is attached to controller */
    2897           0 :                         cdata->anacap.no_change_anagrpid = 1;
    2898           0 :                         cdata->anagrpmax = subsystem->max_nsid;
    2899           0 :                         cdata->nanagrpid = subsystem->max_nsid;
    2900             :                 }
    2901             : 
    2902           3 :                 nvmf_ctrlr_populate_oacs(ctrlr, cdata);
    2903             : 
    2904           3 :                 assert(subsystem->tgt != NULL);
    2905           3 :                 cdata->crdt[0] = subsystem->tgt->crdt[0];
    2906           3 :                 cdata->crdt[1] = subsystem->tgt->crdt[1];
    2907           3 :                 cdata->crdt[2] = subsystem->tgt->crdt[2];
    2908             : 
    2909           3 :                 SPDK_DEBUGLOG(nvmf, "ext ctrlr data: ioccsz 0x%x\n",
    2910             :                               cdata->nvmf_specific.ioccsz);
    2911           3 :                 SPDK_DEBUGLOG(nvmf, "ext ctrlr data: iorcsz 0x%x\n",
    2912             :                               cdata->nvmf_specific.iorcsz);
    2913           3 :                 SPDK_DEBUGLOG(nvmf, "ext ctrlr data: icdoff 0x%x\n",
    2914             :                               cdata->nvmf_specific.icdoff);
    2915           3 :                 SPDK_DEBUGLOG(nvmf, "ext ctrlr data: ctrattr 0x%x\n",
    2916             :                               *(uint8_t *)&cdata->nvmf_specific.ctrattr);
    2917           3 :                 SPDK_DEBUGLOG(nvmf, "ext ctrlr data: msdbd 0x%x\n",
    2918             :                               cdata->nvmf_specific.msdbd);
    2919             :         }
    2920             : 
    2921           3 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    2922             : }
    2923             : 
    2924             : static int
    2925           1 : nvmf_ns_identify_iocs_zns(struct spdk_nvmf_ns *ns,
    2926             :                           struct spdk_nvme_cmd *cmd,
    2927             :                           struct spdk_nvme_cpl *rsp,
    2928             :                           struct spdk_nvme_zns_ns_data *nsdata_zns)
    2929             : {
    2930           1 :         nsdata_zns->zoc.variable_zone_capacity = 0;
    2931           1 :         nsdata_zns->zoc.zone_active_excursions = 0;
    2932           1 :         nsdata_zns->ozcs.read_across_zone_boundaries = 1;
    2933             :         /* Underflowing the zero based mar and mor bdev helper results in the correct
    2934             :            value of FFFFFFFFh. */
    2935           1 :         nsdata_zns->mar = spdk_bdev_get_max_active_zones(ns->bdev) - 1;
    2936           1 :         nsdata_zns->mor = spdk_bdev_get_max_open_zones(ns->bdev) - 1;
    2937           1 :         nsdata_zns->rrl = 0;
    2938           1 :         nsdata_zns->frl = 0;
    2939           1 :         nsdata_zns->lbafe[0].zsze = spdk_bdev_get_zone_size(ns->bdev);
    2940             : 
    2941           1 :         rsp->status.sct = SPDK_NVME_SCT_GENERIC;
    2942           1 :         rsp->status.sc = SPDK_NVME_SC_SUCCESS;
    2943           1 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    2944             : }
    2945             : 
    2946             : int
    2947           4 : spdk_nvmf_ns_identify_iocs_specific(struct spdk_nvmf_ctrlr *ctrlr,
    2948             :                                     struct spdk_nvme_cmd *cmd,
    2949             :                                     struct spdk_nvme_cpl *rsp,
    2950             :                                     void *nsdata,
    2951             :                                     size_t nsdata_size)
    2952             : {
    2953           4 :         uint8_t csi = cmd->cdw11_bits.identify.csi;
    2954           4 :         struct spdk_nvmf_ns *ns = _nvmf_ctrlr_get_ns_safe(ctrlr, cmd->nsid, rsp);
    2955             : 
    2956           4 :         memset(nsdata, 0, nsdata_size);
    2957             : 
    2958           4 :         if (ns == NULL) {
    2959           2 :                 rsp->status.sct = SPDK_NVME_SCT_GENERIC;
    2960           2 :                 rsp->status.sc = SPDK_NVME_SC_INVALID_NAMESPACE_OR_FORMAT;
    2961           2 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    2962             :         }
    2963             : 
    2964           2 :         switch (csi) {
    2965           1 :         case SPDK_NVME_CSI_ZNS:
    2966           1 :                 return nvmf_ns_identify_iocs_zns(ns, cmd, rsp, nsdata);
    2967           1 :         default:
    2968           1 :                 break;
    2969             :         }
    2970             : 
    2971           1 :         SPDK_DEBUGLOG(nvmf,
    2972             :                       "Returning zero filled struct for the iocs specific ns "
    2973             :                       "identify command and CSI 0x%02x\n",
    2974             :                       csi);
    2975           1 :         rsp->status.sct = SPDK_NVME_SCT_GENERIC;
    2976           1 :         rsp->status.sc = SPDK_NVME_SC_SUCCESS;
    2977           1 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    2978             : }
    2979             : 
    2980             : static int
    2981           1 : nvmf_ctrlr_identify_iocs_nvm(struct spdk_nvmf_ctrlr *ctrlr,
    2982             :                              struct spdk_nvme_cmd *cmd,
    2983             :                              struct spdk_nvme_cpl *rsp,
    2984             :                              struct spdk_nvme_nvm_ctrlr_data *cdata_nvm)
    2985             : {
    2986             :         /* The unit of max_write_zeroes_size_kib is KiB.
    2987             :          * The unit of wzsl is the minimum memory page size(2 ^ (12 + CAP.MPSMIN) bytes)
    2988             :          * and is reported as a power of two (2^n).
    2989             :          */
    2990           2 :         cdata_nvm->wzsl = spdk_u64log2(ctrlr->subsys->max_write_zeroes_size_kib >>
    2991           1 :                                        (2 + ctrlr->vcprop.cap.bits.mpsmin));
    2992             : 
    2993             :         /* The unit of max_discard_size_kib is KiB.
    2994             :          * The dmrsl indicates the maximum number of logical blocks for
    2995             :          * dataset management command.
    2996             :          */
    2997           1 :         cdata_nvm->dmrsl = ctrlr->subsys->max_discard_size_kib << 1;
    2998           1 :         cdata_nvm->dmrl = 1;
    2999             : 
    3000           1 :         rsp->status.sct = SPDK_NVME_SCT_GENERIC;
    3001           1 :         rsp->status.sc = SPDK_NVME_SC_SUCCESS;
    3002           1 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    3003             : }
    3004             : 
    3005             : static int
    3006           4 : nvmf_ctrlr_identify_iocs_zns(struct spdk_nvmf_ctrlr *ctrlr,
    3007             :                              struct spdk_nvme_cmd *cmd,
    3008             :                              struct spdk_nvme_cpl *rsp,
    3009             :                              struct spdk_nvme_zns_ctrlr_data *cdata_zns)
    3010             : {
    3011             :         /* The unit of max_zone_append_size_kib is KiB.
    3012             :         The unit of zasl is the minimum memory page size
    3013             :         (2 ^ (12 + CAP.MPSMIN) KiB)
    3014             :         and is reported as a power of two (2^n). */
    3015           8 :         cdata_zns->zasl = spdk_u64log2(ctrlr->subsys->max_zone_append_size_kib >>
    3016           4 :                                        (12 + ctrlr->vcprop.cap.bits.mpsmin));
    3017             : 
    3018           4 :         rsp->status.sct = SPDK_NVME_SCT_GENERIC;
    3019           4 :         rsp->status.sc = SPDK_NVME_SC_SUCCESS;
    3020           4 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    3021             : }
    3022             : 
    3023             : int
    3024           5 : spdk_nvmf_ctrlr_identify_iocs_specific(struct spdk_nvmf_ctrlr *ctrlr,
    3025             :                                        struct spdk_nvme_cmd *cmd,
    3026             :                                        struct spdk_nvme_cpl *rsp,
    3027             :                                        void *cdata,
    3028             :                                        size_t cdata_size)
    3029             : {
    3030           5 :         uint8_t csi = cmd->cdw11_bits.identify.csi;
    3031             : 
    3032           5 :         memset(cdata, 0, cdata_size);
    3033             : 
    3034           5 :         switch (csi) {
    3035           1 :         case SPDK_NVME_CSI_NVM:
    3036           1 :                 return nvmf_ctrlr_identify_iocs_nvm(ctrlr, cmd, rsp, cdata);
    3037           4 :         case SPDK_NVME_CSI_ZNS:
    3038           4 :                 return nvmf_ctrlr_identify_iocs_zns(ctrlr, cmd, rsp, cdata);
    3039           0 :         default:
    3040           0 :                 break;
    3041             :         }
    3042             : 
    3043           0 :         SPDK_DEBUGLOG(nvmf,
    3044             :                       "Returning zero filled struct for the iocs specific ctrlr "
    3045             :                       "identify command and CSI 0x%02x\n",
    3046             :                       csi);
    3047           0 :         rsp->status.sct = SPDK_NVME_SCT_GENERIC;
    3048           0 :         rsp->status.sc = SPDK_NVME_SC_SUCCESS;
    3049           0 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    3050             : }
    3051             : 
    3052             : static int
    3053           0 : nvmf_ctrlr_identify_active_ns_list(struct spdk_nvmf_ctrlr *ctrlr,
    3054             :                                    struct spdk_nvme_cmd *cmd,
    3055             :                                    struct spdk_nvme_cpl *rsp,
    3056             :                                    struct spdk_nvme_ns_list *ns_list)
    3057             : {
    3058           0 :         struct spdk_nvmf_subsystem *subsystem = ctrlr->subsys;
    3059             :         struct spdk_nvmf_ns *ns;
    3060           0 :         uint32_t count = 0;
    3061             : 
    3062           0 :         if (cmd->nsid >= 0xfffffffeUL) {
    3063           0 :                 SPDK_ERRLOG("Identify Active Namespace List with invalid NSID %u\n", cmd->nsid);
    3064           0 :                 rsp->status.sc = SPDK_NVME_SC_INVALID_NAMESPACE_OR_FORMAT;
    3065           0 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    3066             :         }
    3067             : 
    3068           0 :         memset(ns_list, 0, sizeof(*ns_list));
    3069             : 
    3070           0 :         for (ns = spdk_nvmf_subsystem_get_first_ns(subsystem); ns != NULL;
    3071           0 :              ns = spdk_nvmf_subsystem_get_next_ns(subsystem, ns)) {
    3072           0 :                 if (ns->opts.nsid <= cmd->nsid || !nvmf_ctrlr_ns_is_visible(ctrlr, ns->opts.nsid)) {
    3073           0 :                         continue;
    3074             :                 }
    3075             : 
    3076           0 :                 ns_list->ns_list[count++] = ns->opts.nsid;
    3077           0 :                 if (count == SPDK_COUNTOF(ns_list->ns_list)) {
    3078           0 :                         break;
    3079             :                 }
    3080             :         }
    3081             : 
    3082           0 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    3083             : }
    3084             : 
    3085             : static void
    3086           7 : _add_ns_id_desc(void **buf_ptr, size_t *buf_remain,
    3087             :                 enum spdk_nvme_nidt type,
    3088             :                 const void *data, size_t data_size)
    3089             : {
    3090             :         struct spdk_nvme_ns_id_desc *desc;
    3091           7 :         size_t desc_size = sizeof(*desc) + data_size;
    3092             : 
    3093             :         /*
    3094             :          * These should never fail in practice, since all valid NS ID descriptors
    3095             :          * should be defined so that they fit in the available 4096-byte buffer.
    3096             :          */
    3097           7 :         assert(data_size > 0);
    3098           7 :         assert(data_size <= UINT8_MAX);
    3099           7 :         assert(desc_size < *buf_remain);
    3100           7 :         if (data_size == 0 || data_size > UINT8_MAX || desc_size > *buf_remain) {
    3101           0 :                 return;
    3102             :         }
    3103             : 
    3104           7 :         desc = *buf_ptr;
    3105           7 :         desc->nidt = type;
    3106           7 :         desc->nidl = data_size;
    3107           7 :         memcpy(desc->nid, data, data_size);
    3108             : 
    3109           7 :         *buf_ptr += desc_size;
    3110           7 :         *buf_remain -= desc_size;
    3111             : }
    3112             : 
    3113             : static int
    3114           7 : nvmf_ctrlr_identify_ns_id_descriptor_list(
    3115             :         struct spdk_nvmf_ctrlr *ctrlr,
    3116             :         struct spdk_nvme_cmd *cmd,
    3117             :         struct spdk_nvme_cpl *rsp,
    3118             :         void *id_desc_list, size_t id_desc_list_size)
    3119             : {
    3120             :         struct spdk_nvmf_ns *ns;
    3121           7 :         size_t buf_remain = id_desc_list_size;
    3122           7 :         void *buf_ptr = id_desc_list;
    3123             : 
    3124           7 :         ns = nvmf_ctrlr_get_ns(ctrlr, cmd->nsid);
    3125           7 :         if (ns == NULL || ns->bdev == NULL) {
    3126           2 :                 rsp->status.sct = SPDK_NVME_SCT_GENERIC;
    3127           2 :                 rsp->status.sc = SPDK_NVME_SC_INVALID_NAMESPACE_OR_FORMAT;
    3128           2 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    3129             :         }
    3130             : 
    3131             : #define ADD_ID_DESC(type, data, size) \
    3132             :         do { \
    3133             :                 if (!spdk_mem_all_zero(data, size)) { \
    3134             :                         _add_ns_id_desc(&buf_ptr, &buf_remain, type, data, size); \
    3135             :                 } \
    3136             :         } while (0)
    3137             : 
    3138           5 :         ADD_ID_DESC(SPDK_NVME_NIDT_EUI64, ns->opts.eui64, sizeof(ns->opts.eui64));
    3139           5 :         ADD_ID_DESC(SPDK_NVME_NIDT_NGUID, ns->opts.nguid, sizeof(ns->opts.nguid));
    3140           5 :         ADD_ID_DESC(SPDK_NVME_NIDT_UUID, &ns->opts.uuid, sizeof(ns->opts.uuid));
    3141           5 :         ADD_ID_DESC(SPDK_NVME_NIDT_CSI, &ns->csi, sizeof(uint8_t));
    3142             : 
    3143             :         /*
    3144             :          * The list is automatically 0-terminated, both in the temporary buffer
    3145             :          * used by nvmf_ctrlr_identify(), and the eventual iov destination -
    3146             :          * controller to host buffers in admin commands always get zeroed in
    3147             :          * nvmf_ctrlr_process_admin_cmd().
    3148             :          */
    3149             : 
    3150             : #undef ADD_ID_DESC
    3151             : 
    3152           5 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    3153             : }
    3154             : 
    3155             : static int
    3156           0 : nvmf_ctrlr_identify_iocs(struct spdk_nvmf_ctrlr *ctrlr,
    3157             :                          struct spdk_nvme_cmd *cmd,
    3158             :                          struct spdk_nvme_cpl *rsp,
    3159             :                          void *cdata, size_t cdata_size)
    3160             : {
    3161             :         struct spdk_nvme_iocs_vector *vector;
    3162             :         struct spdk_nvmf_ns *ns;
    3163             : 
    3164           0 :         if (cdata_size < sizeof(struct spdk_nvme_iocs_vector)) {
    3165           0 :                 rsp->status.sct = SPDK_NVME_SCT_GENERIC;
    3166           0 :                 rsp->status.sc = SPDK_NVME_SC_INVALID_FIELD;
    3167           0 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    3168             :         }
    3169             : 
    3170             :         /* For now we only support this command sent to the current
    3171             :          * controller.
    3172             :          */
    3173           0 :         if (cmd->cdw10_bits.identify.cntid != 0xFFFF &&
    3174           0 :             cmd->cdw10_bits.identify.cntid != ctrlr->cntlid) {
    3175           0 :                 rsp->status.sct = SPDK_NVME_SCT_GENERIC;
    3176           0 :                 rsp->status.sc = SPDK_NVME_SC_INVALID_FIELD;
    3177           0 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    3178             :         }
    3179           0 :         memset(cdata, 0, cdata_size);
    3180             : 
    3181           0 :         vector = cdata;
    3182           0 :         vector->nvm = 1;
    3183           0 :         for (ns = spdk_nvmf_subsystem_get_first_ns(ctrlr->subsys); ns != NULL;
    3184           0 :              ns = spdk_nvmf_subsystem_get_next_ns(ctrlr->subsys, ns)) {
    3185           0 :                 if (ns->bdev == NULL) {
    3186           0 :                         continue;
    3187             :                 }
    3188           0 :                 if (spdk_bdev_is_zoned(ns->bdev)) {
    3189           0 :                         vector->zns = 1;
    3190             :                 }
    3191             :         }
    3192             : 
    3193           0 :         rsp->status.sct = SPDK_NVME_SCT_GENERIC;
    3194           0 :         rsp->status.sc = SPDK_NVME_SC_SUCCESS;
    3195           0 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    3196             : }
    3197             : 
    3198             : static int
    3199           7 : nvmf_ctrlr_identify(struct spdk_nvmf_request *req)
    3200             : {
    3201             :         uint8_t cns;
    3202           7 :         struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
    3203           7 :         struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
    3204           7 :         struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl;
    3205           7 :         struct spdk_nvmf_subsystem *subsystem = ctrlr->subsys;
    3206           7 :         int ret = SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    3207           7 :         char tmpbuf[SPDK_NVME_IDENTIFY_BUFLEN] = "";
    3208           7 :         struct spdk_iov_xfer ix;
    3209             : 
    3210           7 :         if (req->iovcnt < 1 || req->length < SPDK_NVME_IDENTIFY_BUFLEN) {
    3211           0 :                 SPDK_DEBUGLOG(nvmf, "identify command with invalid buffer\n");
    3212           0 :                 rsp->status.sct = SPDK_NVME_SCT_GENERIC;
    3213           0 :                 rsp->status.sc = SPDK_NVME_SC_INVALID_FIELD;
    3214           0 :                 return ret;
    3215             :         }
    3216             : 
    3217           7 :         cns = cmd->cdw10_bits.identify.cns;
    3218             : 
    3219           7 :         if (spdk_nvmf_subsystem_is_discovery(subsystem) &&
    3220             :             cns != SPDK_NVME_IDENTIFY_CTRLR) {
    3221             :                 /* Discovery controllers only support Identify Controller */
    3222           0 :                 goto invalid_cns;
    3223             :         }
    3224             : 
    3225             :         /*
    3226             :          * We must use a temporary buffer: it's entirely possible the out buffer
    3227             :          * is split across more than one IOV.
    3228             :          */
    3229           7 :         spdk_iov_xfer_init(&ix, req->iov, req->iovcnt);
    3230             : 
    3231           7 :         SPDK_DEBUGLOG(nvmf, "Received identify command with CNS 0x%02x\n", cns);
    3232             : 
    3233           7 :         switch (cns) {
    3234           0 :         case SPDK_NVME_IDENTIFY_NS:
    3235           0 :                 ret = spdk_nvmf_ctrlr_identify_ns(ctrlr, cmd, rsp, (void *)&tmpbuf);
    3236           0 :                 break;
    3237           0 :         case SPDK_NVME_IDENTIFY_CTRLR:
    3238           0 :                 ret = spdk_nvmf_ctrlr_identify_ctrlr(ctrlr, (void *)&tmpbuf);
    3239           0 :                 break;
    3240           0 :         case SPDK_NVME_IDENTIFY_ACTIVE_NS_LIST:
    3241           0 :                 ret = nvmf_ctrlr_identify_active_ns_list(ctrlr, cmd, rsp, (void *)&tmpbuf);
    3242           0 :                 break;
    3243           7 :         case SPDK_NVME_IDENTIFY_NS_ID_DESCRIPTOR_LIST:
    3244           7 :                 ret = nvmf_ctrlr_identify_ns_id_descriptor_list(ctrlr, cmd, rsp,
    3245           7 :                                 tmpbuf, req->length);
    3246           7 :                 break;
    3247           0 :         case SPDK_NVME_IDENTIFY_NS_IOCS:
    3248           0 :                 ret = spdk_nvmf_ns_identify_iocs_specific(ctrlr, cmd, rsp, (void *)&tmpbuf, req->length);
    3249           0 :                 break;
    3250           0 :         case SPDK_NVME_IDENTIFY_CTRLR_IOCS:
    3251           0 :                 ret = spdk_nvmf_ctrlr_identify_iocs_specific(ctrlr, cmd, rsp, (void *)&tmpbuf, req->length);
    3252           0 :                 break;
    3253           0 :         case SPDK_NVME_IDENTIFY_IOCS:
    3254           0 :                 ret = nvmf_ctrlr_identify_iocs(ctrlr, cmd, rsp, (void *)&tmpbuf, req->length);
    3255           0 :                 break;
    3256           0 :         default:
    3257           0 :                 goto invalid_cns;
    3258             :         }
    3259             : 
    3260           7 :         if (ret == SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE) {
    3261           7 :                 spdk_iov_xfer_from_buf(&ix, tmpbuf, sizeof(tmpbuf));
    3262             :         }
    3263             : 
    3264           7 :         return ret;
    3265             : 
    3266           0 : invalid_cns:
    3267           0 :         SPDK_DEBUGLOG(nvmf, "Identify command with unsupported CNS 0x%02x\n", cns);
    3268           0 :         rsp->status.sct = SPDK_NVME_SCT_GENERIC;
    3269           0 :         rsp->status.sc = SPDK_NVME_SC_INVALID_FIELD;
    3270           0 :         return ret;
    3271             : }
    3272             : 
    3273             : static bool
    3274           2 : nvmf_qpair_abort_aer(struct spdk_nvmf_qpair *qpair, uint16_t cid)
    3275             : {
    3276           2 :         struct spdk_nvmf_ctrlr *ctrlr = qpair->ctrlr;
    3277             :         struct spdk_nvmf_request *req;
    3278             :         int i;
    3279             : 
    3280           2 :         if (!nvmf_qpair_is_admin_queue(qpair)) {
    3281           0 :                 return false;
    3282             :         }
    3283             : 
    3284           2 :         assert(spdk_get_thread() == ctrlr->thread);
    3285             : 
    3286           6 :         for (i = 0; i < ctrlr->nr_aer_reqs; i++) {
    3287           6 :                 if (ctrlr->aer_req[i]->cmd->nvme_cmd.cid == cid) {
    3288           2 :                         SPDK_DEBUGLOG(nvmf, "Aborting AER request\n");
    3289           2 :                         req = ctrlr->aer_req[i];
    3290           2 :                         ctrlr->aer_req[i] = NULL;
    3291           2 :                         ctrlr->nr_aer_reqs--;
    3292             : 
    3293             :                         /* Move the last req to the aborting position for making aer_reqs
    3294             :                          * in continuous
    3295             :                          */
    3296           2 :                         if (i < ctrlr->nr_aer_reqs) {
    3297           1 :                                 ctrlr->aer_req[i] = ctrlr->aer_req[ctrlr->nr_aer_reqs];
    3298           1 :                                 ctrlr->aer_req[ctrlr->nr_aer_reqs] = NULL;
    3299             :                         }
    3300             : 
    3301           2 :                         req->rsp->nvme_cpl.status.sct = SPDK_NVME_SCT_GENERIC;
    3302           2 :                         req->rsp->nvme_cpl.status.sc = SPDK_NVME_SC_ABORTED_BY_REQUEST;
    3303           2 :                         _nvmf_request_complete(req);
    3304           2 :                         return true;
    3305             :                 }
    3306             :         }
    3307             : 
    3308           0 :         return false;
    3309             : }
    3310             : 
    3311             : void
    3312           0 : nvmf_qpair_abort_pending_zcopy_reqs(struct spdk_nvmf_qpair *qpair)
    3313             : {
    3314             :         struct spdk_nvmf_request *req, *tmp;
    3315             : 
    3316           0 :         TAILQ_FOREACH_SAFE(req, &qpair->outstanding, link, tmp) {
    3317           0 :                 if (req->zcopy_phase == NVMF_ZCOPY_PHASE_EXECUTE) {
    3318             :                         /* Zero-copy requests are kept on the outstanding queue from the moment
    3319             :                          * zcopy_start is sent until a zcopy_end callback is received.  Therefore,
    3320             :                          * we can't remove them from the outstanding queue here, but need to rely on
    3321             :                          * the transport to do a zcopy_end to release their buffers and, in turn,
    3322             :                          * remove them from the queue.
    3323             :                          */
    3324           0 :                         req->rsp->nvme_cpl.status.sct = SPDK_NVME_SCT_GENERIC;
    3325           0 :                         req->rsp->nvme_cpl.status.sc = SPDK_NVME_SC_ABORTED_BY_REQUEST;
    3326           0 :                         nvmf_transport_req_free(req);
    3327             :                 }
    3328             :         }
    3329           0 : }
    3330             : 
    3331             : static void
    3332           0 : nvmf_qpair_abort_request(struct spdk_nvmf_qpair *qpair, struct spdk_nvmf_request *req)
    3333             : {
    3334           0 :         uint16_t cid = req->cmd->nvme_cmd.cdw10_bits.abort.cid;
    3335             : 
    3336           0 :         if (nvmf_qpair_abort_aer(qpair, cid)) {
    3337           0 :                 SPDK_DEBUGLOG(nvmf, "abort ctrlr=%p sqid=%u cid=%u successful\n",
    3338             :                               qpair->ctrlr, qpair->qid, cid);
    3339           0 :                 req->rsp->nvme_cpl.cdw0 &= ~1U; /* Command successfully aborted */
    3340             : 
    3341           0 :                 spdk_nvmf_request_complete(req);
    3342           0 :                 return;
    3343             :         }
    3344             : 
    3345           0 :         nvmf_transport_qpair_abort_request(qpair, req);
    3346             : }
    3347             : 
    3348             : static void
    3349           0 : nvmf_ctrlr_abort_done(struct spdk_io_channel_iter *i, int status)
    3350             : {
    3351           0 :         struct spdk_nvmf_request *req = spdk_io_channel_iter_get_ctx(i);
    3352             : 
    3353           0 :         if (status == 0) {
    3354             :                 /* There was no qpair whose ID matches SQID of the abort command.
    3355             :                  * Hence call _nvmf_request_complete() here.
    3356             :                  */
    3357           0 :                 _nvmf_request_complete(req);
    3358             :         }
    3359           0 : }
    3360             : 
    3361             : static void
    3362           0 : nvmf_ctrlr_abort_on_pg(struct spdk_io_channel_iter *i)
    3363             : {
    3364           0 :         struct spdk_nvmf_request *req = spdk_io_channel_iter_get_ctx(i);
    3365           0 :         struct spdk_io_channel *ch = spdk_io_channel_iter_get_channel(i);
    3366           0 :         struct spdk_nvmf_poll_group *group = spdk_io_channel_get_ctx(ch);
    3367           0 :         uint16_t sqid = req->cmd->nvme_cmd.cdw10_bits.abort.sqid;
    3368             :         struct spdk_nvmf_qpair *qpair;
    3369             : 
    3370           0 :         TAILQ_FOREACH(qpair, &group->qpairs, link) {
    3371           0 :                 if (qpair->ctrlr == req->qpair->ctrlr && qpair->qid == sqid) {
    3372             :                         /* Found the qpair */
    3373             : 
    3374           0 :                         nvmf_qpair_abort_request(qpair, req);
    3375             : 
    3376             :                         /* Return -1 for the status so the iteration across threads stops. */
    3377           0 :                         spdk_for_each_channel_continue(i, -1);
    3378           0 :                         return;
    3379             :                 }
    3380             :         }
    3381             : 
    3382           0 :         spdk_for_each_channel_continue(i, 0);
    3383             : }
    3384             : 
    3385             : static int
    3386           0 : nvmf_ctrlr_abort(struct spdk_nvmf_request *req)
    3387             : {
    3388           0 :         struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl;
    3389             : 
    3390           0 :         rsp->cdw0 = 1U; /* Command not aborted */
    3391           0 :         rsp->status.sct = SPDK_NVME_SCT_GENERIC;
    3392           0 :         rsp->status.sc = SPDK_NVME_SC_SUCCESS;
    3393             : 
    3394             :         /* Send a message to each poll group, searching for this ctrlr, sqid, and command. */
    3395           0 :         spdk_for_each_channel(req->qpair->ctrlr->subsys->tgt,
    3396             :                               nvmf_ctrlr_abort_on_pg,
    3397             :                               req,
    3398             :                               nvmf_ctrlr_abort_done
    3399             :                              );
    3400             : 
    3401           0 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
    3402             : }
    3403             : 
    3404             : int
    3405           0 : nvmf_ctrlr_abort_request(struct spdk_nvmf_request *req)
    3406             : {
    3407           0 :         struct spdk_nvmf_request *req_to_abort = req->req_to_abort;
    3408           0 :         struct spdk_bdev *bdev;
    3409           0 :         struct spdk_bdev_desc *desc;
    3410           0 :         struct spdk_io_channel *ch;
    3411             :         int rc;
    3412             : 
    3413           0 :         assert(req_to_abort != NULL);
    3414             : 
    3415           0 :         if (g_nvmf_custom_admin_cmd_hdlrs[SPDK_NVME_OPC_ABORT].hdlr &&
    3416           0 :             nvmf_qpair_is_admin_queue(req_to_abort->qpair)) {
    3417           0 :                 return g_nvmf_custom_admin_cmd_hdlrs[SPDK_NVME_OPC_ABORT].hdlr(req);
    3418             :         }
    3419             : 
    3420           0 :         rc = spdk_nvmf_request_get_bdev(req_to_abort->cmd->nvme_cmd.nsid, req_to_abort,
    3421             :                                         &bdev, &desc, &ch);
    3422           0 :         if (rc != 0) {
    3423           0 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    3424             :         }
    3425             : 
    3426           0 :         return spdk_nvmf_bdev_ctrlr_abort_cmd(bdev, desc, ch, req, req_to_abort);
    3427             : }
    3428             : 
    3429             : static int
    3430           1 : get_features_generic(struct spdk_nvmf_request *req, uint32_t cdw0)
    3431             : {
    3432           1 :         struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl;
    3433             : 
    3434           1 :         rsp->cdw0 = cdw0;
    3435           1 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    3436             : }
    3437             : 
    3438             : /* we have to use the typedef in the function declaration to appease astyle. */
    3439             : typedef enum spdk_nvme_path_status_code spdk_nvme_path_status_code_t;
    3440             : 
    3441             : static spdk_nvme_path_status_code_t
    3442           0 : _nvme_ana_state_to_path_status(enum spdk_nvme_ana_state ana_state)
    3443             : {
    3444           0 :         switch (ana_state) {
    3445           0 :         case SPDK_NVME_ANA_INACCESSIBLE_STATE:
    3446           0 :                 return SPDK_NVME_SC_ASYMMETRIC_ACCESS_INACCESSIBLE;
    3447           0 :         case SPDK_NVME_ANA_PERSISTENT_LOSS_STATE:
    3448           0 :                 return SPDK_NVME_SC_ASYMMETRIC_ACCESS_PERSISTENT_LOSS;
    3449           0 :         case SPDK_NVME_ANA_CHANGE_STATE:
    3450           0 :                 return SPDK_NVME_SC_ASYMMETRIC_ACCESS_TRANSITION;
    3451           0 :         default:
    3452           0 :                 return SPDK_NVME_SC_INTERNAL_PATH_ERROR;
    3453             :         }
    3454             : }
    3455             : 
    3456             : static int
    3457           3 : nvmf_ctrlr_get_features(struct spdk_nvmf_request *req)
    3458             : {
    3459             :         uint8_t feature;
    3460           3 :         struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
    3461           3 :         struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
    3462           3 :         struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl;
    3463             :         enum spdk_nvme_ana_state ana_state;
    3464             : 
    3465           3 :         feature = cmd->cdw10_bits.get_features.fid;
    3466             : 
    3467           3 :         if (spdk_nvmf_subsystem_is_discovery(ctrlr->subsys)) {
    3468             :                 /*
    3469             :                  * Features supported by Discovery controller
    3470             :                  */
    3471           0 :                 switch (feature) {
    3472           0 :                 case SPDK_NVME_FEAT_KEEP_ALIVE_TIMER:
    3473           0 :                         return get_features_generic(req, ctrlr->feat.keep_alive_timer.raw);
    3474           0 :                 case SPDK_NVME_FEAT_ASYNC_EVENT_CONFIGURATION:
    3475           0 :                         return get_features_generic(req, ctrlr->feat.async_event_configuration.raw);
    3476           0 :                 default:
    3477           0 :                         SPDK_INFOLOG(nvmf, "Get Features command with unsupported feature ID 0x%02x\n", feature);
    3478           0 :                         response->status.sc = SPDK_NVME_SC_INVALID_FIELD;
    3479           0 :                         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    3480             :                 }
    3481             :         }
    3482             :         /*
    3483             :          * Process Get Features command for non-discovery controller
    3484             :          */
    3485           3 :         ana_state = nvmf_ctrlr_get_ana_state_from_nsid(ctrlr, cmd->nsid);
    3486           3 :         switch (ana_state) {
    3487           0 :         case SPDK_NVME_ANA_INACCESSIBLE_STATE:
    3488             :         case SPDK_NVME_ANA_PERSISTENT_LOSS_STATE:
    3489             :         case SPDK_NVME_ANA_CHANGE_STATE:
    3490           0 :                 switch (feature) {
    3491           0 :                 case SPDK_NVME_FEAT_ERROR_RECOVERY:
    3492             :                 case SPDK_NVME_FEAT_WRITE_ATOMICITY:
    3493             :                 case SPDK_NVME_FEAT_HOST_RESERVE_MASK:
    3494             :                 case SPDK_NVME_FEAT_HOST_RESERVE_PERSIST:
    3495           0 :                         response->status.sct = SPDK_NVME_SCT_PATH;
    3496           0 :                         response->status.sc = _nvme_ana_state_to_path_status(ana_state);
    3497           0 :                         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    3498           0 :                 default:
    3499           0 :                         break;
    3500             :                 }
    3501           0 :                 break;
    3502           3 :         default:
    3503           3 :                 break;
    3504             :         }
    3505             : 
    3506           3 :         switch (feature) {
    3507           0 :         case SPDK_NVME_FEAT_ARBITRATION:
    3508           0 :                 return get_features_generic(req, ctrlr->feat.arbitration.raw);
    3509           0 :         case SPDK_NVME_FEAT_POWER_MANAGEMENT:
    3510           0 :                 return get_features_generic(req, ctrlr->feat.power_management.raw);
    3511           2 :         case SPDK_NVME_FEAT_TEMPERATURE_THRESHOLD:
    3512           2 :                 return nvmf_ctrlr_get_features_temperature_threshold(req);
    3513           1 :         case SPDK_NVME_FEAT_ERROR_RECOVERY:
    3514           1 :                 return get_features_generic(req, ctrlr->feat.error_recovery.raw);
    3515           0 :         case SPDK_NVME_FEAT_VOLATILE_WRITE_CACHE:
    3516           0 :                 return get_features_generic(req, ctrlr->feat.volatile_write_cache.raw);
    3517           0 :         case SPDK_NVME_FEAT_NUMBER_OF_QUEUES:
    3518           0 :                 return get_features_generic(req, ctrlr->feat.number_of_queues.raw);
    3519           0 :         case SPDK_NVME_FEAT_INTERRUPT_COALESCING:
    3520           0 :                 return get_features_generic(req, ctrlr->feat.interrupt_coalescing.raw);
    3521           0 :         case SPDK_NVME_FEAT_INTERRUPT_VECTOR_CONFIGURATION:
    3522           0 :                 return nvmf_ctrlr_get_features_interrupt_vector_configuration(req);
    3523           0 :         case SPDK_NVME_FEAT_WRITE_ATOMICITY:
    3524           0 :                 return get_features_generic(req, ctrlr->feat.write_atomicity.raw);
    3525           0 :         case SPDK_NVME_FEAT_ASYNC_EVENT_CONFIGURATION:
    3526           0 :                 return get_features_generic(req, ctrlr->feat.async_event_configuration.raw);
    3527           0 :         case SPDK_NVME_FEAT_KEEP_ALIVE_TIMER:
    3528           0 :                 return get_features_generic(req, ctrlr->feat.keep_alive_timer.raw);
    3529           0 :         case SPDK_NVME_FEAT_HOST_IDENTIFIER:
    3530           0 :                 return nvmf_ctrlr_get_features_host_identifier(req);
    3531           0 :         case SPDK_NVME_FEAT_HOST_RESERVE_MASK:
    3532           0 :                 return nvmf_ctrlr_get_features_reservation_notification_mask(req);
    3533           0 :         case SPDK_NVME_FEAT_HOST_RESERVE_PERSIST:
    3534           0 :                 return nvmf_ctrlr_get_features_reservation_persistence(req);
    3535           0 :         case SPDK_NVME_FEAT_HOST_BEHAVIOR_SUPPORT:
    3536           0 :                 return nvmf_ctrlr_get_features_host_behavior_support(req);
    3537           0 :         default:
    3538           0 :                 SPDK_INFOLOG(nvmf, "Get Features command with unsupported feature ID 0x%02x\n", feature);
    3539           0 :                 response->status.sc = SPDK_NVME_SC_INVALID_FIELD;
    3540           0 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    3541             :         }
    3542             : }
    3543             : 
    3544             : static int
    3545           5 : nvmf_ctrlr_set_features(struct spdk_nvmf_request *req)
    3546             : {
    3547             :         uint8_t feature, save;
    3548           5 :         struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
    3549           5 :         struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
    3550           5 :         struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl;
    3551             :         enum spdk_nvme_ana_state ana_state;
    3552             :         /*
    3553             :          * Features are not saveable by the controller as indicated by
    3554             :          * ONCS field of the Identify Controller data.
    3555             :          * */
    3556           5 :         save = cmd->cdw10_bits.set_features.sv;
    3557           5 :         if (save) {
    3558           0 :                 response->status.sc = SPDK_NVME_SC_FEATURE_ID_NOT_SAVEABLE;
    3559           0 :                 response->status.sct = SPDK_NVME_SCT_COMMAND_SPECIFIC;
    3560           0 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    3561             :         }
    3562             : 
    3563           5 :         feature = cmd->cdw10_bits.set_features.fid;
    3564             : 
    3565           5 :         if (spdk_nvmf_subsystem_is_discovery(ctrlr->subsys)) {
    3566             :                 /*
    3567             :                  * Features supported by Discovery controller
    3568             :                  */
    3569           0 :                 switch (feature) {
    3570           0 :                 case SPDK_NVME_FEAT_KEEP_ALIVE_TIMER:
    3571           0 :                         return nvmf_ctrlr_set_features_keep_alive_timer(req);
    3572           0 :                 case SPDK_NVME_FEAT_ASYNC_EVENT_CONFIGURATION:
    3573           0 :                         return nvmf_ctrlr_set_features_async_event_configuration(req);
    3574           0 :                 default:
    3575           0 :                         SPDK_INFOLOG(nvmf, "Set 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             :          * Process Set Features command for non-discovery controller
    3582             :          */
    3583           5 :         ana_state = nvmf_ctrlr_get_ana_state_from_nsid(ctrlr, cmd->nsid);
    3584           5 :         switch (ana_state) {
    3585           0 :         case SPDK_NVME_ANA_INACCESSIBLE_STATE:
    3586             :         case SPDK_NVME_ANA_CHANGE_STATE:
    3587           0 :                 if (cmd->nsid == SPDK_NVME_GLOBAL_NS_TAG) {
    3588           0 :                         response->status.sct = SPDK_NVME_SCT_PATH;
    3589           0 :                         response->status.sc = _nvme_ana_state_to_path_status(ana_state);
    3590           0 :                         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    3591             :                 } else {
    3592           0 :                         switch (feature) {
    3593           0 :                         case SPDK_NVME_FEAT_ERROR_RECOVERY:
    3594             :                         case SPDK_NVME_FEAT_WRITE_ATOMICITY:
    3595             :                         case SPDK_NVME_FEAT_HOST_RESERVE_MASK:
    3596             :                         case SPDK_NVME_FEAT_HOST_RESERVE_PERSIST:
    3597           0 :                                 response->status.sct = SPDK_NVME_SCT_PATH;
    3598           0 :                                 response->status.sc = _nvme_ana_state_to_path_status(ana_state);
    3599           0 :                                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    3600           0 :                         default:
    3601           0 :                                 break;
    3602             :                         }
    3603             :                 }
    3604           0 :                 break;
    3605           0 :         case SPDK_NVME_ANA_PERSISTENT_LOSS_STATE:
    3606           0 :                 response->status.sct = SPDK_NVME_SCT_PATH;
    3607           0 :                 response->status.sc = SPDK_NVME_SC_ASYMMETRIC_ACCESS_PERSISTENT_LOSS;
    3608           0 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    3609           5 :         default:
    3610           5 :                 break;
    3611             :         }
    3612             : 
    3613           5 :         switch (feature) {
    3614           0 :         case SPDK_NVME_FEAT_ARBITRATION:
    3615           0 :                 return nvmf_ctrlr_set_features_arbitration(req);
    3616           0 :         case SPDK_NVME_FEAT_POWER_MANAGEMENT:
    3617           0 :                 return nvmf_ctrlr_set_features_power_management(req);
    3618           3 :         case SPDK_NVME_FEAT_TEMPERATURE_THRESHOLD:
    3619           3 :                 return nvmf_ctrlr_set_features_temperature_threshold(req);
    3620           2 :         case SPDK_NVME_FEAT_ERROR_RECOVERY:
    3621           2 :                 return nvmf_ctrlr_set_features_error_recovery(req);
    3622           0 :         case SPDK_NVME_FEAT_VOLATILE_WRITE_CACHE:
    3623           0 :                 return nvmf_ctrlr_set_features_volatile_write_cache(req);
    3624           0 :         case SPDK_NVME_FEAT_NUMBER_OF_QUEUES:
    3625           0 :                 return nvmf_ctrlr_set_features_number_of_queues(req);
    3626           0 :         case SPDK_NVME_FEAT_INTERRUPT_COALESCING:
    3627           0 :                 response->status.sct = SPDK_NVME_SCT_COMMAND_SPECIFIC;
    3628           0 :                 response->status.sc = SPDK_NVME_SC_FEATURE_NOT_CHANGEABLE;
    3629           0 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    3630           0 :         case SPDK_NVME_FEAT_WRITE_ATOMICITY:
    3631           0 :                 return nvmf_ctrlr_set_features_write_atomicity(req);
    3632           0 :         case SPDK_NVME_FEAT_ASYNC_EVENT_CONFIGURATION:
    3633           0 :                 return nvmf_ctrlr_set_features_async_event_configuration(req);
    3634           0 :         case SPDK_NVME_FEAT_KEEP_ALIVE_TIMER:
    3635           0 :                 return nvmf_ctrlr_set_features_keep_alive_timer(req);
    3636           0 :         case SPDK_NVME_FEAT_HOST_IDENTIFIER:
    3637           0 :                 return nvmf_ctrlr_set_features_host_identifier(req);
    3638           0 :         case SPDK_NVME_FEAT_HOST_RESERVE_MASK:
    3639           0 :                 return nvmf_ctrlr_set_features_reservation_notification_mask(req);
    3640           0 :         case SPDK_NVME_FEAT_HOST_RESERVE_PERSIST:
    3641           0 :                 return nvmf_ctrlr_set_features_reservation_persistence(req);
    3642           0 :         case SPDK_NVME_FEAT_HOST_BEHAVIOR_SUPPORT:
    3643           0 :                 return nvmf_ctrlr_set_features_host_behavior_support(req);
    3644           0 :         default:
    3645           0 :                 SPDK_INFOLOG(nvmf, "Set Features command with unsupported feature ID 0x%02x\n", feature);
    3646           0 :                 response->status.sc = SPDK_NVME_SC_INVALID_FIELD;
    3647           0 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    3648             :         }
    3649             : }
    3650             : 
    3651             : static int
    3652           0 : nvmf_ctrlr_keep_alive(struct spdk_nvmf_request *req)
    3653             : {
    3654           0 :         struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
    3655             : 
    3656           0 :         SPDK_DEBUGLOG(nvmf, "Keep Alive\n");
    3657             :         /*
    3658             :          * To handle keep alive just clear or reset the
    3659             :          * ctrlr based keep alive duration counter.
    3660             :          * When added, a separate timer based process
    3661             :          * will monitor if the time since last recorded
    3662             :          * keep alive has exceeded the max duration and
    3663             :          * take appropriate action.
    3664             :          */
    3665           0 :         ctrlr->last_keep_alive_tick = spdk_get_ticks();
    3666             : 
    3667           0 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    3668             : }
    3669             : 
    3670             : int
    3671          18 : nvmf_ctrlr_process_admin_cmd(struct spdk_nvmf_request *req)
    3672             : {
    3673          18 :         struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
    3674          18 :         struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
    3675          18 :         struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl;
    3676             :         struct spdk_nvmf_subsystem_poll_group *sgroup;
    3677             :         int rc;
    3678             : 
    3679          18 :         assert(ctrlr != NULL);
    3680          18 :         if (cmd->opc == SPDK_NVME_OPC_ASYNC_EVENT_REQUEST) {
    3681             :                 /* We do not want to treat AERs as outstanding commands,
    3682             :                  * so decrement mgmt_io_outstanding here to offset
    3683             :                  * the increment that happened prior to this call.
    3684             :                  */
    3685          10 :                 sgroup = &req->qpair->group->sgroups[ctrlr->subsys->id];
    3686          10 :                 assert(sgroup != NULL);
    3687          10 :                 sgroup->mgmt_io_outstanding--;
    3688             :         }
    3689             : 
    3690          18 :         assert(spdk_get_thread() == ctrlr->thread);
    3691             : 
    3692          18 :         if (cmd->fuse != 0) {
    3693             :                 /* Fused admin commands are not supported. */
    3694           0 :                 response->status.sct = SPDK_NVME_SCT_GENERIC;
    3695           0 :                 response->status.sc = SPDK_NVME_SC_INVALID_FIELD;
    3696           0 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    3697             :         }
    3698             : 
    3699          18 :         if (ctrlr->vcprop.cc.bits.en != 1) {
    3700           0 :                 SPDK_ERRLOG("Admin command sent to disabled controller\n");
    3701           0 :                 response->status.sct = SPDK_NVME_SCT_GENERIC;
    3702           0 :                 response->status.sc = SPDK_NVME_SC_COMMAND_SEQUENCE_ERROR;
    3703           0 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    3704             :         }
    3705             : 
    3706          18 :         if (req->iovcnt && spdk_nvme_opc_get_data_transfer(cmd->opc) == SPDK_NVME_DATA_CONTROLLER_TO_HOST) {
    3707           7 :                 spdk_iov_memset(req->iov, req->iovcnt, 0);
    3708             :         }
    3709             : 
    3710          18 :         if (spdk_nvmf_subsystem_is_discovery(ctrlr->subsys)) {
    3711             :                 /* Discovery controllers only support these admin OPS. */
    3712           0 :                 switch (cmd->opc) {
    3713           0 :                 case SPDK_NVME_OPC_IDENTIFY:
    3714             :                 case SPDK_NVME_OPC_GET_LOG_PAGE:
    3715             :                 case SPDK_NVME_OPC_KEEP_ALIVE:
    3716             :                 case SPDK_NVME_OPC_SET_FEATURES:
    3717             :                 case SPDK_NVME_OPC_GET_FEATURES:
    3718             :                 case SPDK_NVME_OPC_ASYNC_EVENT_REQUEST:
    3719           0 :                         break;
    3720           0 :                 default:
    3721           0 :                         goto invalid_opcode;
    3722             :                 }
    3723          18 :         }
    3724             : 
    3725             :         /* Call a custom adm cmd handler if set. Aborts are handled in a different path (see nvmf_passthru_admin_cmd) */
    3726          18 :         if (g_nvmf_custom_admin_cmd_hdlrs[cmd->opc].hdlr && cmd->opc != SPDK_NVME_OPC_ABORT) {
    3727           1 :                 rc = g_nvmf_custom_admin_cmd_hdlrs[cmd->opc].hdlr(req);
    3728           1 :                 if (rc >= SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE) {
    3729             :                         /* The handler took care of this command */
    3730           1 :                         return rc;
    3731             :                 }
    3732             :         }
    3733             : 
    3734          17 :         switch (cmd->opc) {
    3735           0 :         case SPDK_NVME_OPC_GET_LOG_PAGE:
    3736           0 :                 return nvmf_ctrlr_get_log_page(req);
    3737           7 :         case SPDK_NVME_OPC_IDENTIFY:
    3738           7 :                 return nvmf_ctrlr_identify(req);
    3739           0 :         case SPDK_NVME_OPC_ABORT:
    3740           0 :                 return nvmf_ctrlr_abort(req);
    3741           0 :         case SPDK_NVME_OPC_GET_FEATURES:
    3742           0 :                 return nvmf_ctrlr_get_features(req);
    3743           0 :         case SPDK_NVME_OPC_SET_FEATURES:
    3744           0 :                 return nvmf_ctrlr_set_features(req);
    3745          10 :         case SPDK_NVME_OPC_ASYNC_EVENT_REQUEST:
    3746          10 :                 return nvmf_ctrlr_async_event_request(req);
    3747           0 :         case SPDK_NVME_OPC_KEEP_ALIVE:
    3748           0 :                 return nvmf_ctrlr_keep_alive(req);
    3749             : 
    3750           0 :         case SPDK_NVME_OPC_CREATE_IO_SQ:
    3751             :         case SPDK_NVME_OPC_CREATE_IO_CQ:
    3752             :         case SPDK_NVME_OPC_DELETE_IO_SQ:
    3753             :         case SPDK_NVME_OPC_DELETE_IO_CQ:
    3754             :                 /* Create and Delete I/O CQ/SQ not allowed in NVMe-oF */
    3755           0 :                 goto invalid_opcode;
    3756             : 
    3757           0 :         default:
    3758           0 :                 goto invalid_opcode;
    3759             :         }
    3760             : 
    3761           0 : invalid_opcode:
    3762           0 :         SPDK_INFOLOG(nvmf, "Unsupported admin opcode 0x%x\n", cmd->opc);
    3763           0 :         response->status.sct = SPDK_NVME_SCT_GENERIC;
    3764           0 :         response->status.sc = SPDK_NVME_SC_INVALID_OPCODE;
    3765           0 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    3766             : }
    3767             : 
    3768             : static int
    3769           0 : nvmf_ctrlr_process_fabrics_cmd(struct spdk_nvmf_request *req)
    3770             : {
    3771           0 :         struct spdk_nvmf_qpair *qpair = req->qpair;
    3772             :         struct spdk_nvmf_capsule_cmd *cap_hdr;
    3773             : 
    3774           0 :         cap_hdr = &req->cmd->nvmf_cmd;
    3775             : 
    3776           0 :         if (qpair->ctrlr == NULL) {
    3777             :                 /* No ctrlr established yet; the only valid command is Connect */
    3778           0 :                 assert(cap_hdr->fctype == SPDK_NVMF_FABRIC_COMMAND_CONNECT);
    3779           0 :                 return nvmf_ctrlr_cmd_connect(req);
    3780           0 :         } else if (nvmf_qpair_is_admin_queue(qpair)) {
    3781             :                 /*
    3782             :                  * Controller session is established, and this is an admin queue.
    3783             :                  * Disallow Connect and allow other fabrics commands.
    3784             :                  */
    3785           0 :                 switch (cap_hdr->fctype) {
    3786           0 :                 case SPDK_NVMF_FABRIC_COMMAND_PROPERTY_SET:
    3787           0 :                         return nvmf_property_set(req);
    3788           0 :                 case SPDK_NVMF_FABRIC_COMMAND_PROPERTY_GET:
    3789           0 :                         return nvmf_property_get(req);
    3790           0 :                 case SPDK_NVMF_FABRIC_COMMAND_AUTHENTICATION_SEND:
    3791             :                 case SPDK_NVMF_FABRIC_COMMAND_AUTHENTICATION_RECV:
    3792           0 :                         return nvmf_auth_request_exec(req);
    3793           0 :                 default:
    3794           0 :                         SPDK_DEBUGLOG(nvmf, "unknown fctype 0x%02x\n",
    3795             :                                       cap_hdr->fctype);
    3796           0 :                         req->rsp->nvme_cpl.status.sct = SPDK_NVME_SCT_GENERIC;
    3797           0 :                         req->rsp->nvme_cpl.status.sc = SPDK_NVME_SC_INVALID_OPCODE;
    3798           0 :                         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    3799             :                 }
    3800             :         } else {
    3801             :                 /*
    3802             :                  * Controller session is established, and this is an I/O queue.
    3803             :                  * Disallow everything besides authentication commands.
    3804             :                  */
    3805           0 :                 switch (cap_hdr->fctype) {
    3806           0 :                 case SPDK_NVMF_FABRIC_COMMAND_AUTHENTICATION_SEND:
    3807             :                 case SPDK_NVMF_FABRIC_COMMAND_AUTHENTICATION_RECV:
    3808           0 :                         return nvmf_auth_request_exec(req);
    3809           0 :                 default:
    3810           0 :                         SPDK_DEBUGLOG(nvmf, "Unexpected I/O fctype 0x%x\n", cap_hdr->fctype);
    3811           0 :                         req->rsp->nvme_cpl.status.sct = SPDK_NVME_SCT_GENERIC;
    3812           0 :                         req->rsp->nvme_cpl.status.sc = SPDK_NVME_SC_INVALID_OPCODE;
    3813           0 :                         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    3814             :                 }
    3815             :         }
    3816             : }
    3817             : 
    3818             : static inline void
    3819           5 : nvmf_ctrlr_queue_pending_async_event(struct spdk_nvmf_ctrlr *ctrlr,
    3820             :                                      union spdk_nvme_async_event_completion *event)
    3821             : {
    3822             :         struct spdk_nvmf_async_event_completion *nvmf_event;
    3823             : 
    3824           5 :         nvmf_event = calloc(1, sizeof(*nvmf_event));
    3825           5 :         if (!nvmf_event) {
    3826           0 :                 SPDK_ERRLOG("Alloc nvmf event failed, ignore the event\n");
    3827           0 :                 return;
    3828             :         }
    3829           5 :         nvmf_event->event.raw = event->raw;
    3830           5 :         STAILQ_INSERT_TAIL(&ctrlr->async_events, nvmf_event, link);
    3831             : }
    3832             : 
    3833             : static inline int
    3834           6 : nvmf_ctrlr_async_event_notification(struct spdk_nvmf_ctrlr *ctrlr,
    3835             :                                     union spdk_nvme_async_event_completion *event)
    3836             : {
    3837             :         struct spdk_nvmf_request *req;
    3838             :         struct spdk_nvme_cpl *rsp;
    3839             : 
    3840           6 :         assert(spdk_get_thread() == ctrlr->thread);
    3841             : 
    3842             :         /* If there is no outstanding AER request, queue the event.  Then
    3843             :          * if an AER is later submitted, this event can be sent as a
    3844             :          * response.
    3845             :          */
    3846           6 :         if (ctrlr->nr_aer_reqs == 0) {
    3847           5 :                 nvmf_ctrlr_queue_pending_async_event(ctrlr, event);
    3848           5 :                 return 0;
    3849             :         }
    3850             : 
    3851           1 :         req = ctrlr->aer_req[--ctrlr->nr_aer_reqs];
    3852           1 :         rsp = &req->rsp->nvme_cpl;
    3853             : 
    3854           1 :         rsp->cdw0 = event->raw;
    3855             : 
    3856           1 :         _nvmf_request_complete(req);
    3857           1 :         ctrlr->aer_req[ctrlr->nr_aer_reqs] = NULL;
    3858             : 
    3859           1 :         return 0;
    3860             : }
    3861             : 
    3862             : int
    3863           6 : nvmf_ctrlr_async_event_ns_notice(struct spdk_nvmf_ctrlr *ctrlr)
    3864             : {
    3865           6 :         union spdk_nvme_async_event_completion event = {0};
    3866             : 
    3867             :         /* Users may disable the event notification */
    3868           6 :         if (!ctrlr->feat.async_event_configuration.bits.ns_attr_notice) {
    3869           0 :                 return 0;
    3870             :         }
    3871             : 
    3872           6 :         if (!nvmf_ctrlr_mask_aen(ctrlr, SPDK_NVME_ASYNC_EVENT_NS_ATTR_CHANGE_MASK_BIT)) {
    3873           3 :                 return 0;
    3874             :         }
    3875             : 
    3876           3 :         event.bits.async_event_type = SPDK_NVME_ASYNC_EVENT_TYPE_NOTICE;
    3877           3 :         event.bits.async_event_info = SPDK_NVME_ASYNC_EVENT_NS_ATTR_CHANGED;
    3878           3 :         event.bits.log_page_identifier = SPDK_NVME_LOG_CHANGED_NS_LIST;
    3879             : 
    3880           3 :         return nvmf_ctrlr_async_event_notification(ctrlr, &event);
    3881             : }
    3882             : 
    3883             : int
    3884           1 : nvmf_ctrlr_async_event_ana_change_notice(struct spdk_nvmf_ctrlr *ctrlr)
    3885             : {
    3886           1 :         union spdk_nvme_async_event_completion event = {0};
    3887             : 
    3888             :         /* Users may disable the event notification */
    3889           1 :         if (!ctrlr->feat.async_event_configuration.bits.ana_change_notice) {
    3890           0 :                 return 0;
    3891             :         }
    3892             : 
    3893           1 :         if (!nvmf_ctrlr_mask_aen(ctrlr, SPDK_NVME_ASYNC_EVENT_ANA_CHANGE_MASK_BIT)) {
    3894           0 :                 return 0;
    3895             :         }
    3896             : 
    3897           1 :         event.bits.async_event_type = SPDK_NVME_ASYNC_EVENT_TYPE_NOTICE;
    3898           1 :         event.bits.async_event_info = SPDK_NVME_ASYNC_EVENT_ANA_CHANGE;
    3899           1 :         event.bits.log_page_identifier = SPDK_NVME_LOG_ASYMMETRIC_NAMESPACE_ACCESS;
    3900             : 
    3901           1 :         return nvmf_ctrlr_async_event_notification(ctrlr, &event);
    3902             : }
    3903             : 
    3904             : void
    3905           3 : nvmf_ctrlr_async_event_reservation_notification(struct spdk_nvmf_ctrlr *ctrlr)
    3906             : {
    3907           3 :         union spdk_nvme_async_event_completion event = {0};
    3908             : 
    3909           3 :         if (!ctrlr->num_avail_log_pages) {
    3910           0 :                 return;
    3911             :         }
    3912             : 
    3913           3 :         if (!nvmf_ctrlr_mask_aen(ctrlr, SPDK_NVME_ASYNC_EVENT_RESERVATION_LOG_AVAIL_MASK_BIT)) {
    3914           2 :                 return;
    3915             :         }
    3916             : 
    3917           1 :         event.bits.async_event_type = SPDK_NVME_ASYNC_EVENT_TYPE_IO;
    3918           1 :         event.bits.async_event_info = SPDK_NVME_ASYNC_EVENT_RESERVATION_LOG_AVAIL;
    3919           1 :         event.bits.log_page_identifier = SPDK_NVME_LOG_RESERVATION_NOTIFICATION;
    3920             : 
    3921           1 :         nvmf_ctrlr_async_event_notification(ctrlr, &event);
    3922             : }
    3923             : 
    3924             : void
    3925           1 : nvmf_ctrlr_async_event_discovery_log_change_notice(void *ctx)
    3926             : {
    3927           1 :         union spdk_nvme_async_event_completion event = {0};
    3928           1 :         struct spdk_nvmf_ctrlr *ctrlr = ctx;
    3929             : 
    3930             :         /* Users may disable the event notification manually or
    3931             :          * it may not be enabled due to keep alive timeout
    3932             :          * not being set in connect command to discovery controller.
    3933             :          */
    3934           1 :         if (!ctrlr->feat.async_event_configuration.bits.discovery_log_change_notice) {
    3935           0 :                 return;
    3936             :         }
    3937             : 
    3938           1 :         if (!nvmf_ctrlr_mask_aen(ctrlr, SPDK_NVME_ASYNC_EVENT_DISCOVERY_LOG_CHANGE_MASK_BIT)) {
    3939           0 :                 return;
    3940             :         }
    3941             : 
    3942           1 :         event.bits.async_event_type = SPDK_NVME_ASYNC_EVENT_TYPE_NOTICE;
    3943           1 :         event.bits.async_event_info = SPDK_NVME_ASYNC_EVENT_DISCOVERY_LOG_CHANGE;
    3944           1 :         event.bits.log_page_identifier = SPDK_NVME_LOG_DISCOVERY;
    3945             : 
    3946           1 :         nvmf_ctrlr_async_event_notification(ctrlr, &event);
    3947             : }
    3948             : 
    3949             : int
    3950           0 : spdk_nvmf_ctrlr_async_event_error_event(struct spdk_nvmf_ctrlr *ctrlr,
    3951             :                                         enum spdk_nvme_async_event_info_error info)
    3952             : {
    3953           0 :         union spdk_nvme_async_event_completion event;
    3954             : 
    3955           0 :         if (!nvmf_ctrlr_mask_aen(ctrlr, SPDK_NVME_ASYNC_EVENT_ERROR_MASK_BIT)) {
    3956           0 :                 return 0;
    3957             :         }
    3958             : 
    3959           0 :         if (info > SPDK_NVME_ASYNC_EVENT_FW_IMAGE_LOAD) {
    3960           0 :                 return 0;
    3961             :         }
    3962             : 
    3963           0 :         event.bits.async_event_type = SPDK_NVME_ASYNC_EVENT_TYPE_ERROR;
    3964           0 :         event.bits.log_page_identifier = SPDK_NVME_LOG_ERROR;
    3965           0 :         event.bits.async_event_info = info;
    3966             : 
    3967           0 :         return nvmf_ctrlr_async_event_notification(ctrlr, &event);
    3968             : }
    3969             : 
    3970             : void
    3971           0 : nvmf_qpair_free_aer(struct spdk_nvmf_qpair *qpair)
    3972             : {
    3973           0 :         struct spdk_nvmf_ctrlr *ctrlr = qpair->ctrlr;
    3974             :         int i;
    3975             : 
    3976           0 :         if (ctrlr == NULL || !nvmf_qpair_is_admin_queue(qpair)) {
    3977           0 :                 return;
    3978             :         }
    3979             : 
    3980           0 :         assert(spdk_get_thread() == ctrlr->thread);
    3981             : 
    3982           0 :         for (i = 0; i < ctrlr->nr_aer_reqs; i++) {
    3983           0 :                 spdk_nvmf_request_free(ctrlr->aer_req[i]);
    3984           0 :                 ctrlr->aer_req[i] = NULL;
    3985             :         }
    3986             : 
    3987           0 :         ctrlr->nr_aer_reqs = 0;
    3988             : }
    3989             : 
    3990             : void
    3991           0 : spdk_nvmf_ctrlr_abort_aer(struct spdk_nvmf_ctrlr *ctrlr)
    3992             : {
    3993             :         struct spdk_nvmf_request *req;
    3994             :         int i;
    3995             : 
    3996           0 :         assert(spdk_get_thread() == ctrlr->thread);
    3997             : 
    3998           0 :         if (!ctrlr->nr_aer_reqs) {
    3999           0 :                 return;
    4000             :         }
    4001             : 
    4002           0 :         for (i = 0; i < ctrlr->nr_aer_reqs; i++) {
    4003           0 :                 req = ctrlr->aer_req[i];
    4004             : 
    4005           0 :                 req->rsp->nvme_cpl.status.sct = SPDK_NVME_SCT_GENERIC;
    4006           0 :                 req->rsp->nvme_cpl.status.sc = SPDK_NVME_SC_ABORTED_BY_REQUEST;
    4007           0 :                 _nvmf_request_complete(req);
    4008             : 
    4009           0 :                 ctrlr->aer_req[i] = NULL;
    4010             :         }
    4011             : 
    4012           0 :         ctrlr->nr_aer_reqs = 0;
    4013             : }
    4014             : 
    4015             : static void
    4016           3 : _nvmf_ctrlr_add_reservation_log(void *ctx)
    4017             : {
    4018           3 :         struct spdk_nvmf_reservation_log *log = (struct spdk_nvmf_reservation_log *)ctx;
    4019           3 :         struct spdk_nvmf_ctrlr *ctrlr = log->ctrlr;
    4020             : 
    4021           3 :         ctrlr->log_page_count++;
    4022             : 
    4023             :         /* Maximum number of queued log pages is 255 */
    4024           3 :         if (ctrlr->num_avail_log_pages == 0xff) {
    4025             :                 struct spdk_nvmf_reservation_log *entry;
    4026           0 :                 entry = TAILQ_LAST(&ctrlr->log_head, log_page_head);
    4027           0 :                 entry->log.log_page_count = ctrlr->log_page_count;
    4028           0 :                 free(log);
    4029           0 :                 return;
    4030             :         }
    4031             : 
    4032           3 :         log->log.log_page_count = ctrlr->log_page_count;
    4033           3 :         log->log.num_avail_log_pages = ctrlr->num_avail_log_pages++;
    4034           3 :         TAILQ_INSERT_TAIL(&ctrlr->log_head, log, link);
    4035             : 
    4036           3 :         nvmf_ctrlr_async_event_reservation_notification(ctrlr);
    4037             : }
    4038             : 
    4039             : void
    4040           6 : nvmf_ctrlr_reservation_notice_log(struct spdk_nvmf_ctrlr *ctrlr,
    4041             :                                   struct spdk_nvmf_ns *ns,
    4042             :                                   enum spdk_nvme_reservation_notification_log_page_type type)
    4043             : {
    4044             :         struct spdk_nvmf_reservation_log *log;
    4045             : 
    4046           6 :         switch (type) {
    4047           0 :         case SPDK_NVME_RESERVATION_LOG_PAGE_EMPTY:
    4048           0 :                 return;
    4049           2 :         case SPDK_NVME_REGISTRATION_PREEMPTED:
    4050           2 :                 if (ns->mask & SPDK_NVME_REGISTRATION_PREEMPTED_MASK) {
    4051           1 :                         return;
    4052             :                 }
    4053           1 :                 break;
    4054           2 :         case SPDK_NVME_RESERVATION_RELEASED:
    4055           2 :                 if (ns->mask & SPDK_NVME_RESERVATION_RELEASED_MASK) {
    4056           1 :                         return;
    4057             :                 }
    4058           1 :                 break;
    4059           2 :         case SPDK_NVME_RESERVATION_PREEMPTED:
    4060           2 :                 if (ns->mask & SPDK_NVME_RESERVATION_PREEMPTED_MASK) {
    4061           1 :                         return;
    4062             :                 }
    4063           1 :                 break;
    4064           0 :         default:
    4065           0 :                 return;
    4066             :         }
    4067             : 
    4068           3 :         log = calloc(1, sizeof(*log));
    4069           3 :         if (!log) {
    4070           0 :                 SPDK_ERRLOG("Alloc log page failed, ignore the log\n");
    4071           0 :                 return;
    4072             :         }
    4073           3 :         log->ctrlr = ctrlr;
    4074           3 :         log->log.type = type;
    4075           3 :         log->log.nsid = ns->nsid;
    4076             : 
    4077           3 :         spdk_thread_send_msg(ctrlr->thread, _nvmf_ctrlr_add_reservation_log, log);
    4078             : }
    4079             : 
    4080             : /* Check from subsystem poll group's namespace information data structure */
    4081             : static bool
    4082          28 : nvmf_ns_info_ctrlr_is_registrant(struct spdk_nvmf_subsystem_pg_ns_info *ns_info,
    4083             :                                  struct spdk_nvmf_ctrlr *ctrlr)
    4084             : {
    4085             :         uint32_t i;
    4086             : 
    4087         205 :         for (i = 0; i < SPDK_NVMF_MAX_NUM_REGISTRANTS; i++) {
    4088         195 :                 if (!spdk_uuid_compare(&ns_info->reg_hostid[i], &ctrlr->hostid)) {
    4089          18 :                         return true;
    4090             :                 }
    4091             :         }
    4092             : 
    4093          10 :         return false;
    4094             : }
    4095             : 
    4096             : /*
    4097             :  * Check the NVMe command is permitted or not for current controller(Host).
    4098             :  */
    4099             : static int
    4100          38 : nvmf_ns_reservation_request_check(struct spdk_nvmf_subsystem_pg_ns_info *ns_info,
    4101             :                                   struct spdk_nvmf_ctrlr *ctrlr,
    4102             :                                   struct spdk_nvmf_request *req)
    4103             : {
    4104          38 :         struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
    4105          38 :         enum spdk_nvme_reservation_type rtype = ns_info->rtype;
    4106          38 :         uint8_t status = SPDK_NVME_SC_SUCCESS;
    4107             :         uint8_t racqa;
    4108             :         bool is_registrant;
    4109             : 
    4110             :         /* No valid reservation */
    4111          38 :         if (!rtype) {
    4112          10 :                 return 0;
    4113             :         }
    4114             : 
    4115          28 :         is_registrant = nvmf_ns_info_ctrlr_is_registrant(ns_info, ctrlr);
    4116             :         /* All registrants type and current ctrlr is a valid registrant */
    4117          28 :         if ((rtype == SPDK_NVME_RESERVE_WRITE_EXCLUSIVE_ALL_REGS ||
    4118           9 :              rtype == SPDK_NVME_RESERVE_EXCLUSIVE_ACCESS_ALL_REGS) && is_registrant) {
    4119           5 :                 return 0;
    4120          23 :         } else if (!spdk_uuid_compare(&ns_info->holder_id, &ctrlr->hostid)) {
    4121           4 :                 return 0;
    4122             :         }
    4123             : 
    4124             :         /* Non-holder for current controller */
    4125          19 :         switch (cmd->opc) {
    4126           9 :         case SPDK_NVME_OPC_READ:
    4127             :         case SPDK_NVME_OPC_COMPARE:
    4128           9 :                 if (rtype == SPDK_NVME_RESERVE_EXCLUSIVE_ACCESS) {
    4129           1 :                         status = SPDK_NVME_SC_RESERVATION_CONFLICT;
    4130           1 :                         goto exit;
    4131             :                 }
    4132           8 :                 if ((rtype == SPDK_NVME_RESERVE_EXCLUSIVE_ACCESS_REG_ONLY ||
    4133           2 :                      rtype == SPDK_NVME_RESERVE_EXCLUSIVE_ACCESS_ALL_REGS) && !is_registrant) {
    4134           2 :                         status = SPDK_NVME_SC_RESERVATION_CONFLICT;
    4135             :                 }
    4136           8 :                 break;
    4137           9 :         case SPDK_NVME_OPC_FLUSH:
    4138             :         case SPDK_NVME_OPC_WRITE:
    4139             :         case SPDK_NVME_OPC_WRITE_UNCORRECTABLE:
    4140             :         case SPDK_NVME_OPC_WRITE_ZEROES:
    4141             :         case SPDK_NVME_OPC_DATASET_MANAGEMENT:
    4142           9 :                 if (rtype == SPDK_NVME_RESERVE_WRITE_EXCLUSIVE ||
    4143             :                     rtype == SPDK_NVME_RESERVE_EXCLUSIVE_ACCESS) {
    4144           3 :                         status = SPDK_NVME_SC_RESERVATION_CONFLICT;
    4145           3 :                         goto exit;
    4146             :                 }
    4147           6 :                 if (!is_registrant) {
    4148           4 :                         status = SPDK_NVME_SC_RESERVATION_CONFLICT;
    4149             :                 }
    4150           6 :                 break;
    4151           0 :         case SPDK_NVME_OPC_RESERVATION_ACQUIRE:
    4152           0 :                 racqa = cmd->cdw10_bits.resv_acquire.racqa;
    4153           0 :                 if (racqa == SPDK_NVME_RESERVE_ACQUIRE) {
    4154           0 :                         status = SPDK_NVME_SC_RESERVATION_CONFLICT;
    4155           0 :                         goto exit;
    4156             :                 }
    4157           0 :                 if (!is_registrant) {
    4158           0 :                         status = SPDK_NVME_SC_RESERVATION_CONFLICT;
    4159             :                 }
    4160           0 :                 break;
    4161           1 :         case SPDK_NVME_OPC_RESERVATION_RELEASE:
    4162           1 :                 if (!is_registrant) {
    4163           0 :                         status = SPDK_NVME_SC_RESERVATION_CONFLICT;
    4164             :                 }
    4165           1 :                 break;
    4166           0 :         default:
    4167           0 :                 break;
    4168             :         }
    4169             : 
    4170          19 : exit:
    4171          19 :         req->rsp->nvme_cpl.status.sct = SPDK_NVME_SCT_GENERIC;
    4172          19 :         req->rsp->nvme_cpl.status.sc = status;
    4173          19 :         if (status == SPDK_NVME_SC_RESERVATION_CONFLICT) {
    4174          10 :                 return -EPERM;
    4175             :         }
    4176             : 
    4177           9 :         return 0;
    4178             : }
    4179             : 
    4180             : static int
    4181           6 : nvmf_ctrlr_process_io_fused_cmd(struct spdk_nvmf_request *req, struct spdk_bdev *bdev,
    4182             :                                 struct spdk_bdev_desc *desc, struct spdk_io_channel *ch)
    4183             : {
    4184           6 :         struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
    4185           6 :         struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl;
    4186           6 :         struct spdk_nvmf_request *first_fused_req = req->qpair->first_fused_req;
    4187             :         int rc;
    4188             : 
    4189           6 :         if (cmd->fuse == SPDK_NVME_CMD_FUSE_FIRST) {
    4190             :                 /* first fused operation (should be compare) */
    4191           3 :                 if (first_fused_req != NULL) {
    4192           0 :                         struct spdk_nvme_cpl *fused_response = &first_fused_req->rsp->nvme_cpl;
    4193             : 
    4194           0 :                         SPDK_ERRLOG("Wrong sequence of fused operations\n");
    4195             : 
    4196             :                         /* abort req->qpair->first_fused_request and continue with new fused command */
    4197           0 :                         fused_response->status.sc = SPDK_NVME_SC_ABORTED_MISSING_FUSED;
    4198           0 :                         fused_response->status.sct = SPDK_NVME_SCT_GENERIC;
    4199           0 :                         _nvmf_request_complete(first_fused_req);
    4200           3 :                 } else if (cmd->opc != SPDK_NVME_OPC_COMPARE) {
    4201           1 :                         SPDK_ERRLOG("Wrong op code of fused operations\n");
    4202           1 :                         rsp->status.sct = SPDK_NVME_SCT_GENERIC;
    4203           1 :                         rsp->status.sc = SPDK_NVME_SC_INVALID_OPCODE;
    4204           1 :                         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    4205             :                 }
    4206             : 
    4207           2 :                 req->qpair->first_fused_req = req;
    4208           2 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
    4209           3 :         } else if (cmd->fuse == SPDK_NVME_CMD_FUSE_SECOND) {
    4210             :                 /* second fused operation (should be write) */
    4211           3 :                 if (first_fused_req == NULL) {
    4212           1 :                         SPDK_ERRLOG("Wrong sequence of fused operations\n");
    4213           1 :                         rsp->status.sct = SPDK_NVME_SCT_GENERIC;
    4214           1 :                         rsp->status.sc = SPDK_NVME_SC_ABORTED_MISSING_FUSED;
    4215           1 :                         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    4216           2 :                 } else if (cmd->opc != SPDK_NVME_OPC_WRITE) {
    4217           1 :                         struct spdk_nvme_cpl *fused_response = &first_fused_req->rsp->nvme_cpl;
    4218             : 
    4219           1 :                         SPDK_ERRLOG("Wrong op code of fused operations\n");
    4220             : 
    4221             :                         /* abort req->qpair->first_fused_request and fail current command */
    4222           1 :                         fused_response->status.sc = SPDK_NVME_SC_ABORTED_MISSING_FUSED;
    4223           1 :                         fused_response->status.sct = SPDK_NVME_SCT_GENERIC;
    4224           1 :                         _nvmf_request_complete(first_fused_req);
    4225             : 
    4226           1 :                         rsp->status.sct = SPDK_NVME_SCT_GENERIC;
    4227           1 :                         rsp->status.sc = SPDK_NVME_SC_INVALID_OPCODE;
    4228           1 :                         req->qpair->first_fused_req = NULL;
    4229           1 :                         return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    4230             :                 }
    4231             : 
    4232             :                 /* save request of first command to generate response later */
    4233           1 :                 req->first_fused_req = first_fused_req;
    4234           1 :                 req->first_fused = true;
    4235           1 :                 req->qpair->first_fused_req = NULL;
    4236             :         } else {
    4237           0 :                 SPDK_ERRLOG("Invalid fused command fuse field.\n");
    4238           0 :                 rsp->status.sct = SPDK_NVME_SCT_GENERIC;
    4239           0 :                 rsp->status.sc = SPDK_NVME_SC_INVALID_FIELD;
    4240           0 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    4241             :         }
    4242             : 
    4243           1 :         rc = nvmf_bdev_ctrlr_compare_and_write_cmd(bdev, desc, ch, req->first_fused_req, req);
    4244             : 
    4245           1 :         if (rc == SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE) {
    4246           1 :                 if (spdk_nvme_cpl_is_error(rsp)) {
    4247           0 :                         struct spdk_nvme_cpl *fused_response = &first_fused_req->rsp->nvme_cpl;
    4248             : 
    4249           0 :                         fused_response->status = rsp->status;
    4250           0 :                         rsp->status.sct = SPDK_NVME_SCT_GENERIC;
    4251           0 :                         rsp->status.sc = SPDK_NVME_SC_ABORTED_FAILED_FUSED;
    4252             :                         /* Complete first of fused commands. Second will be completed by upper layer */
    4253           0 :                         _nvmf_request_complete(first_fused_req);
    4254           0 :                         req->first_fused_req = NULL;
    4255           0 :                         req->first_fused = false;
    4256             :                 }
    4257             :         }
    4258             : 
    4259           1 :         return rc;
    4260             : }
    4261             : 
    4262             : bool
    4263         271 : nvmf_ctrlr_use_zcopy(struct spdk_nvmf_request *req)
    4264             : {
    4265         271 :         struct spdk_nvmf_transport *transport = req->qpair->transport;
    4266             :         struct spdk_nvmf_ns *ns;
    4267             : 
    4268         271 :         assert(req->zcopy_phase == NVMF_ZCOPY_PHASE_NONE);
    4269             : 
    4270         271 :         if (!transport->opts.zcopy) {
    4271           3 :                 return false;
    4272             :         }
    4273             : 
    4274         268 :         if (nvmf_qpair_is_admin_queue(req->qpair)) {
    4275             :                 /* Admin queue */
    4276           1 :                 return false;
    4277             :         }
    4278             : 
    4279         267 :         if ((req->cmd->nvme_cmd.opc != SPDK_NVME_OPC_WRITE) &&
    4280         262 :             (req->cmd->nvme_cmd.opc != SPDK_NVME_OPC_READ)) {
    4281             :                 /* Not a READ or WRITE command */
    4282         254 :                 return false;
    4283             :         }
    4284             : 
    4285          13 :         if (req->cmd->nvme_cmd.fuse != SPDK_NVME_CMD_FUSE_NONE) {
    4286             :                 /* Fused commands dont use zcopy buffers */
    4287           1 :                 return false;
    4288             :         }
    4289             : 
    4290          12 :         ns = nvmf_ctrlr_get_ns(req->qpair->ctrlr, req->cmd->nvme_cmd.nsid);
    4291          12 :         if (ns == NULL || ns->bdev == NULL || !ns->zcopy) {
    4292           2 :                 return false;
    4293             :         }
    4294             : 
    4295          10 :         req->zcopy_phase = NVMF_ZCOPY_PHASE_INIT;
    4296          10 :         return true;
    4297             : }
    4298             : 
    4299             : void
    4300           9 : spdk_nvmf_request_zcopy_start(struct spdk_nvmf_request *req)
    4301             : {
    4302           9 :         assert(req->zcopy_phase == NVMF_ZCOPY_PHASE_INIT);
    4303             : 
    4304             :         /* Set iovcnt to be the maximum number of iovs that the ZCOPY can use */
    4305           9 :         req->iovcnt = NVMF_REQ_MAX_BUFFERS;
    4306             : 
    4307           9 :         spdk_nvmf_request_exec(req);
    4308           9 : }
    4309             : 
    4310             : void
    4311           2 : spdk_nvmf_request_zcopy_end(struct spdk_nvmf_request *req, bool commit)
    4312             : {
    4313           2 :         assert(req->zcopy_phase == NVMF_ZCOPY_PHASE_EXECUTE);
    4314           2 :         req->zcopy_phase = NVMF_ZCOPY_PHASE_END_PENDING;
    4315             : 
    4316           2 :         nvmf_bdev_ctrlr_zcopy_end(req, commit);
    4317           2 : }
    4318             : 
    4319             : int
    4320          10 : nvmf_ctrlr_process_io_cmd(struct spdk_nvmf_request *req)
    4321             : {
    4322             :         uint32_t nsid;
    4323             :         struct spdk_nvmf_ns *ns;
    4324             :         struct spdk_bdev *bdev;
    4325             :         struct spdk_bdev_desc *desc;
    4326             :         struct spdk_io_channel *ch;
    4327          10 :         struct spdk_nvmf_poll_group *group = req->qpair->group;
    4328          10 :         struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
    4329          10 :         struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
    4330          10 :         struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl;
    4331             :         struct spdk_nvmf_subsystem_pg_ns_info *ns_info;
    4332             :         enum spdk_nvme_ana_state ana_state;
    4333             : 
    4334             :         /* pre-set response details for this command */
    4335          10 :         response->status.sc = SPDK_NVME_SC_SUCCESS;
    4336          10 :         nsid = cmd->nsid;
    4337             : 
    4338          10 :         assert(ctrlr != NULL);
    4339          10 :         if (spdk_unlikely(ctrlr->vcprop.cc.bits.en != 1)) {
    4340           0 :                 SPDK_ERRLOG("I/O command sent to disabled controller\n");
    4341           0 :                 response->status.sct = SPDK_NVME_SCT_GENERIC;
    4342           0 :                 response->status.sc = SPDK_NVME_SC_COMMAND_SEQUENCE_ERROR;
    4343           0 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    4344             :         }
    4345             : 
    4346          10 :         ns = nvmf_ctrlr_get_ns(ctrlr, nsid);
    4347          10 :         if (spdk_unlikely(ns == NULL || ns->bdev == NULL)) {
    4348           0 :                 SPDK_DEBUGLOG(nvmf, "Unsuccessful query for nsid %u\n", cmd->nsid);
    4349           0 :                 response->status.sc = SPDK_NVME_SC_INVALID_NAMESPACE_OR_FORMAT;
    4350           0 :                 response->status.dnr = 1;
    4351           0 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    4352             :         }
    4353             : 
    4354          10 :         ana_state = nvmf_ctrlr_get_ana_state(ctrlr, ns->anagrpid);
    4355          10 :         if (spdk_unlikely(ana_state != SPDK_NVME_ANA_OPTIMIZED_STATE &&
    4356             :                           ana_state != SPDK_NVME_ANA_NON_OPTIMIZED_STATE)) {
    4357           0 :                 SPDK_DEBUGLOG(nvmf, "Fail I/O command due to ANA state %d\n",
    4358             :                               ana_state);
    4359           0 :                 response->status.sct = SPDK_NVME_SCT_PATH;
    4360           0 :                 response->status.sc = _nvme_ana_state_to_path_status(ana_state);
    4361           0 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    4362             :         }
    4363             : 
    4364          10 :         if (spdk_likely(ctrlr->listener != NULL)) {
    4365             :                 SPDK_DTRACE_PROBE3_TICKS(nvmf_request_io_exec_path, req,
    4366             :                                          ctrlr->listener->trid->traddr,
    4367             :                                          ctrlr->listener->trid->trsvcid);
    4368             :         }
    4369             : 
    4370             :         /* scan-build falsely reporting dereference of null pointer */
    4371          10 :         assert(group != NULL && group->sgroups != NULL);
    4372          10 :         ns_info = &group->sgroups[ctrlr->subsys->id].ns_info[nsid - 1];
    4373          10 :         if (nvmf_ns_reservation_request_check(ns_info, ctrlr, req)) {
    4374           0 :                 SPDK_DEBUGLOG(nvmf, "Reservation Conflict for nsid %u, opcode %u\n",
    4375             :                               cmd->nsid, cmd->opc);
    4376           0 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    4377             :         }
    4378             : 
    4379          10 :         bdev = ns->bdev;
    4380          10 :         desc = ns->desc;
    4381          10 :         ch = ns_info->channel;
    4382             : 
    4383          10 :         if (spdk_unlikely(cmd->fuse & SPDK_NVME_CMD_FUSE_MASK)) {
    4384           6 :                 return nvmf_ctrlr_process_io_fused_cmd(req, bdev, desc, ch);
    4385           4 :         } else if (spdk_unlikely(req->qpair->first_fused_req != NULL)) {
    4386           0 :                 struct spdk_nvme_cpl *fused_response = &req->qpair->first_fused_req->rsp->nvme_cpl;
    4387             : 
    4388           0 :                 SPDK_ERRLOG("Expected second of fused commands - failing first of fused commands\n");
    4389             : 
    4390             :                 /* abort req->qpair->first_fused_request and continue with new command */
    4391           0 :                 fused_response->status.sc = SPDK_NVME_SC_ABORTED_MISSING_FUSED;
    4392           0 :                 fused_response->status.sct = SPDK_NVME_SCT_GENERIC;
    4393           0 :                 _nvmf_request_complete(req->qpair->first_fused_req);
    4394           0 :                 req->qpair->first_fused_req = NULL;
    4395             :         }
    4396             : 
    4397           4 :         if (spdk_nvmf_request_using_zcopy(req)) {
    4398           4 :                 assert(req->zcopy_phase == NVMF_ZCOPY_PHASE_INIT);
    4399           4 :                 return nvmf_bdev_ctrlr_zcopy_start(bdev, desc, ch, req);
    4400             :         } else {
    4401           0 :                 switch (cmd->opc) {
    4402           0 :                 case SPDK_NVME_OPC_READ:
    4403           0 :                         return nvmf_bdev_ctrlr_read_cmd(bdev, desc, ch, req);
    4404           0 :                 case SPDK_NVME_OPC_WRITE:
    4405           0 :                         return nvmf_bdev_ctrlr_write_cmd(bdev, desc, ch, req);
    4406           0 :                 case SPDK_NVME_OPC_COMPARE:
    4407           0 :                         return nvmf_bdev_ctrlr_compare_cmd(bdev, desc, ch, req);
    4408           0 :                 case SPDK_NVME_OPC_WRITE_ZEROES:
    4409           0 :                         return nvmf_bdev_ctrlr_write_zeroes_cmd(bdev, desc, ch, req);
    4410           0 :                 case SPDK_NVME_OPC_FLUSH:
    4411           0 :                         return nvmf_bdev_ctrlr_flush_cmd(bdev, desc, ch, req);
    4412           0 :                 case SPDK_NVME_OPC_DATASET_MANAGEMENT:
    4413           0 :                         return nvmf_bdev_ctrlr_dsm_cmd(bdev, desc, ch, req);
    4414           0 :                 case SPDK_NVME_OPC_RESERVATION_REGISTER:
    4415             :                 case SPDK_NVME_OPC_RESERVATION_ACQUIRE:
    4416             :                 case SPDK_NVME_OPC_RESERVATION_RELEASE:
    4417             :                 case SPDK_NVME_OPC_RESERVATION_REPORT:
    4418           0 :                         spdk_thread_send_msg(ctrlr->subsys->thread, nvmf_ns_reservation_request, req);
    4419           0 :                         return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
    4420           0 :                 case SPDK_NVME_OPC_COPY:
    4421           0 :                         return nvmf_bdev_ctrlr_copy_cmd(bdev, desc, ch, req);
    4422           0 :                 default:
    4423           0 :                         return nvmf_bdev_ctrlr_nvme_passthru_io(bdev, desc, ch, req);
    4424             :                 }
    4425             :         }
    4426             : }
    4427             : 
    4428             : static void
    4429          40 : nvmf_qpair_request_cleanup(struct spdk_nvmf_qpair *qpair)
    4430             : {
    4431          40 :         if (spdk_unlikely(qpair->state == SPDK_NVMF_QPAIR_DEACTIVATING)) {
    4432           2 :                 assert(qpair->state_cb != NULL);
    4433             : 
    4434           2 :                 if (TAILQ_EMPTY(&qpair->outstanding)) {
    4435           2 :                         qpair->state_cb(qpair->state_cb_arg, 0);
    4436             :                 }
    4437             :         }
    4438          40 : }
    4439             : 
    4440             : int
    4441           0 : spdk_nvmf_request_free(struct spdk_nvmf_request *req)
    4442             : {
    4443           0 :         struct spdk_nvmf_qpair *qpair = req->qpair;
    4444             : 
    4445           0 :         TAILQ_REMOVE(&qpair->outstanding, req, link);
    4446           0 :         if (spdk_unlikely(nvmf_transport_req_free(req))) {
    4447           0 :                 SPDK_ERRLOG("Unable to free transport level request resources.\n");
    4448             :         }
    4449             : 
    4450           0 :         nvmf_qpair_request_cleanup(qpair);
    4451             : 
    4452           0 :         return 0;
    4453             : }
    4454             : 
    4455             : static void
    4456          40 : _nvmf_request_complete(void *ctx)
    4457             : {
    4458          40 :         struct spdk_nvmf_request *req = ctx;
    4459          40 :         struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl;
    4460             :         struct spdk_nvmf_qpair *qpair;
    4461          40 :         struct spdk_nvmf_subsystem_poll_group *sgroup = NULL;
    4462             :         struct spdk_nvmf_subsystem_pg_ns_info *ns_info;
    4463          40 :         bool is_aer = false;
    4464             :         uint32_t nsid;
    4465             :         bool paused;
    4466             :         uint8_t opcode;
    4467             : 
    4468          40 :         rsp->sqid = 0;
    4469          40 :         rsp->status.p = 0;
    4470          40 :         rsp->cid = req->cmd->nvme_cmd.cid;
    4471          40 :         nsid = req->cmd->nvme_cmd.nsid;
    4472          40 :         opcode = req->cmd->nvmf_cmd.opcode;
    4473             : 
    4474          40 :         qpair = req->qpair;
    4475          40 :         if (spdk_likely(qpair->ctrlr)) {
    4476          23 :                 sgroup = &qpair->group->sgroups[qpair->ctrlr->subsys->id];
    4477          23 :                 assert(sgroup != NULL);
    4478          23 :                 is_aer = req->cmd->nvme_cmd.opc == SPDK_NVME_OPC_ASYNC_EVENT_REQUEST;
    4479          23 :                 if (spdk_likely(qpair->qid != 0)) {
    4480          16 :                         qpair->group->stat.completed_nvme_io++;
    4481             :                 }
    4482             : 
    4483             :                 /*
    4484             :                  * Set the crd value.
    4485             :                  * If the the IO has any error, and dnr (DoNotRetry) is not 1,
    4486             :                  * and ACRE is enabled, we will set the crd to 1 to select the first CRDT.
    4487             :                  */
    4488          23 :                 if (spdk_unlikely(spdk_nvme_cpl_is_error(rsp) &&
    4489             :                                   rsp->status.dnr == 0 &&
    4490             :                                   qpair->ctrlr->acre_enabled)) {
    4491           0 :                         rsp->status.crd = 1;
    4492             :                 }
    4493          17 :         } else if (spdk_unlikely(nvmf_request_is_fabric_connect(req))) {
    4494           9 :                 sgroup = nvmf_subsystem_pg_from_connect_cmd(req);
    4495             :         }
    4496             : 
    4497          40 :         if (SPDK_DEBUGLOG_FLAG_ENABLED("nvmf")) {
    4498           0 :                 spdk_nvme_print_completion(qpair->qid, rsp);
    4499             :         }
    4500             : 
    4501          40 :         switch (req->zcopy_phase) {
    4502          30 :         case NVMF_ZCOPY_PHASE_NONE:
    4503          30 :                 TAILQ_REMOVE(&qpair->outstanding, req, link);
    4504          30 :                 break;
    4505           8 :         case NVMF_ZCOPY_PHASE_INIT:
    4506           8 :                 if (spdk_unlikely(spdk_nvme_cpl_is_error(rsp))) {
    4507           5 :                         req->zcopy_phase = NVMF_ZCOPY_PHASE_INIT_FAILED;
    4508           5 :                         TAILQ_REMOVE(&qpair->outstanding, req, link);
    4509             :                 } else {
    4510           3 :                         req->zcopy_phase = NVMF_ZCOPY_PHASE_EXECUTE;
    4511             :                 }
    4512           8 :                 break;
    4513           0 :         case NVMF_ZCOPY_PHASE_EXECUTE:
    4514           0 :                 break;
    4515           2 :         case NVMF_ZCOPY_PHASE_END_PENDING:
    4516           2 :                 TAILQ_REMOVE(&qpair->outstanding, req, link);
    4517           2 :                 req->zcopy_phase = NVMF_ZCOPY_PHASE_COMPLETE;
    4518           2 :                 break;
    4519           0 :         default:
    4520           0 :                 SPDK_ERRLOG("Invalid ZCOPY phase %u\n", req->zcopy_phase);
    4521           0 :                 break;
    4522             :         }
    4523             : 
    4524          40 :         if (spdk_unlikely(nvmf_transport_req_complete(req))) {
    4525           0 :                 SPDK_ERRLOG("Transport request completion error!\n");
    4526             :         }
    4527             : 
    4528             :         /* AER cmd is an exception */
    4529          40 :         if (spdk_likely(sgroup && !is_aer)) {
    4530          30 :                 if (spdk_unlikely(opcode == SPDK_NVME_OPC_FABRIC ||
    4531             :                                   nvmf_qpair_is_admin_queue(qpair))) {
    4532          16 :                         assert(sgroup->mgmt_io_outstanding > 0);
    4533          16 :                         sgroup->mgmt_io_outstanding--;
    4534             :                 } else {
    4535          14 :                         if (req->zcopy_phase == NVMF_ZCOPY_PHASE_NONE ||
    4536           9 :                             req->zcopy_phase == NVMF_ZCOPY_PHASE_COMPLETE ||
    4537           7 :                             req->zcopy_phase == NVMF_ZCOPY_PHASE_INIT_FAILED) {
    4538             :                                 /* End of request */
    4539             : 
    4540             :                                 /* NOTE: This implicitly also checks for 0, since 0 - 1 wraps around to UINT32_MAX. */
    4541          11 :                                 if (spdk_likely(nsid - 1 < sgroup->num_ns)) {
    4542          10 :                                         sgroup->ns_info[nsid - 1].io_outstanding--;
    4543             :                                 }
    4544             :                         }
    4545             :                 }
    4546             : 
    4547          30 :                 if (spdk_unlikely(sgroup->state == SPDK_NVMF_SUBSYSTEM_PAUSING &&
    4548             :                                   sgroup->mgmt_io_outstanding == 0)) {
    4549           0 :                         paused = true;
    4550           0 :                         for (nsid = 0; nsid < sgroup->num_ns; nsid++) {
    4551           0 :                                 ns_info = &sgroup->ns_info[nsid];
    4552             : 
    4553           0 :                                 if (ns_info->state == SPDK_NVMF_SUBSYSTEM_PAUSING &&
    4554           0 :                                     ns_info->io_outstanding > 0) {
    4555           0 :                                         paused = false;
    4556           0 :                                         break;
    4557             :                                 }
    4558             :                         }
    4559             : 
    4560           0 :                         if (paused) {
    4561           0 :                                 sgroup->state = SPDK_NVMF_SUBSYSTEM_PAUSED;
    4562           0 :                                 sgroup->cb_fn(sgroup->cb_arg, 0);
    4563           0 :                                 sgroup->cb_fn = NULL;
    4564           0 :                                 sgroup->cb_arg = NULL;
    4565             :                         }
    4566             :                 }
    4567             : 
    4568             :         }
    4569             : 
    4570          40 :         nvmf_qpair_request_cleanup(qpair);
    4571          40 : }
    4572             : 
    4573             : int
    4574          18 : spdk_nvmf_request_complete(struct spdk_nvmf_request *req)
    4575             : {
    4576          18 :         struct spdk_nvmf_qpair *qpair = req->qpair;
    4577             : 
    4578          18 :         spdk_thread_exec_msg(qpair->group->thread, _nvmf_request_complete, req);
    4579             : 
    4580          18 :         return 0;
    4581             : }
    4582             : 
    4583           2 : SPDK_LOG_DEPRECATION_REGISTER(nvmf_request_exec_fabrics, "spdk_nvmf_request_exec_fabrics()",
    4584             :                               "v24.09", 1);
    4585             : void
    4586           0 : spdk_nvmf_request_exec_fabrics(struct spdk_nvmf_request *req)
    4587             : {
    4588           0 :         SPDK_LOG_DEPRECATED(nvmf_request_exec_fabrics);
    4589             : 
    4590           0 :         return spdk_nvmf_request_exec(req);
    4591             : }
    4592             : 
    4593             : static bool
    4594          15 : nvmf_check_subsystem_active(struct spdk_nvmf_request *req)
    4595             : {
    4596          15 :         struct spdk_nvmf_qpair *qpair = req->qpair;
    4597          15 :         struct spdk_nvmf_subsystem_poll_group *sgroup = NULL;
    4598             :         struct spdk_nvmf_subsystem_pg_ns_info *ns_info;
    4599             :         uint32_t nsid;
    4600             : 
    4601          15 :         if (spdk_likely(qpair->ctrlr)) {
    4602          14 :                 sgroup = &qpair->group->sgroups[qpair->ctrlr->subsys->id];
    4603          14 :                 assert(sgroup != NULL);
    4604           1 :         } else if (spdk_unlikely(nvmf_request_is_fabric_connect(req))) {
    4605           0 :                 sgroup = nvmf_subsystem_pg_from_connect_cmd(req);
    4606             :         }
    4607             : 
    4608             :         /* Check if the subsystem is paused (if there is a subsystem) */
    4609          15 :         if (spdk_unlikely(sgroup == NULL)) {
    4610           1 :                 return true;
    4611             :         }
    4612             : 
    4613          14 :         if (spdk_unlikely(req->cmd->nvmf_cmd.opcode == SPDK_NVME_OPC_FABRIC ||
    4614             :                           nvmf_qpair_is_admin_queue(qpair))) {
    4615           0 :                 if (sgroup->state != SPDK_NVMF_SUBSYSTEM_ACTIVE) {
    4616             :                         /* The subsystem is not currently active. Queue this request. */
    4617           0 :                         TAILQ_INSERT_TAIL(&sgroup->queued, req, link);
    4618           0 :                         return false;
    4619             :                 }
    4620           0 :                 sgroup->mgmt_io_outstanding++;
    4621             :         } else {
    4622          14 :                 nsid = req->cmd->nvme_cmd.nsid;
    4623             : 
    4624             :                 /* NOTE: This implicitly also checks for 0, since 0 - 1 wraps around to UINT32_MAX. */
    4625          14 :                 if (spdk_unlikely(nsid - 1 >= sgroup->num_ns)) {
    4626           1 :                         req->rsp->nvme_cpl.status.sct = SPDK_NVME_SCT_GENERIC;
    4627           1 :                         req->rsp->nvme_cpl.status.sc = SPDK_NVME_SC_INVALID_NAMESPACE_OR_FORMAT;
    4628           1 :                         req->rsp->nvme_cpl.status.dnr = 1;
    4629           1 :                         TAILQ_INSERT_TAIL(&qpair->outstanding, req, link);
    4630           1 :                         _nvmf_request_complete(req);
    4631           1 :                         return false;
    4632             :                 }
    4633             : 
    4634          13 :                 ns_info = &sgroup->ns_info[nsid - 1];
    4635          13 :                 if (spdk_unlikely(ns_info->channel == NULL)) {
    4636             :                         /* This can can happen if host sends I/O to a namespace that is
    4637             :                          * in the process of being added, but before the full addition
    4638             :                          * process is complete.  Report invalid namespace in that case.
    4639             :                          */
    4640           1 :                         req->rsp->nvme_cpl.status.sct = SPDK_NVME_SCT_GENERIC;
    4641           1 :                         req->rsp->nvme_cpl.status.sc = SPDK_NVME_SC_INVALID_NAMESPACE_OR_FORMAT;
    4642           1 :                         req->rsp->nvme_cpl.status.dnr = 1;
    4643           1 :                         TAILQ_INSERT_TAIL(&qpair->outstanding, req, link);
    4644           1 :                         ns_info->io_outstanding++;
    4645           1 :                         _nvmf_request_complete(req);
    4646           1 :                         return false;
    4647             :                 }
    4648             : 
    4649          12 :                 if (spdk_unlikely(ns_info->state != SPDK_NVMF_SUBSYSTEM_ACTIVE)) {
    4650             :                         /* The namespace is not currently active. Queue this request. */
    4651           1 :                         TAILQ_INSERT_TAIL(&sgroup->queued, req, link);
    4652           1 :                         return false;
    4653             :                 }
    4654             : 
    4655          11 :                 ns_info->io_outstanding++;
    4656             :         }
    4657             : 
    4658          11 :         return true;
    4659             : }
    4660             : 
    4661             : static bool
    4662          22 : nvmf_check_qpair_active(struct spdk_nvmf_request *req)
    4663             : {
    4664          22 :         struct spdk_nvmf_qpair *qpair = req->qpair;
    4665             :         int sc, sct;
    4666             : 
    4667          22 :         if (spdk_likely(qpair->state == SPDK_NVMF_QPAIR_ENABLED)) {
    4668          11 :                 return true;
    4669             :         }
    4670             : 
    4671          11 :         sct = SPDK_NVME_SCT_GENERIC;
    4672          11 :         sc = SPDK_NVME_SC_COMMAND_SEQUENCE_ERROR;
    4673             : 
    4674          11 :         switch (qpair->state) {
    4675           4 :         case SPDK_NVMF_QPAIR_CONNECTING:
    4676           4 :                 if (req->cmd->nvmf_cmd.opcode != SPDK_NVME_OPC_FABRIC) {
    4677           3 :                         SPDK_ERRLOG("Received command 0x%x on qid %u before CONNECT\n",
    4678             :                                     req->cmd->nvmf_cmd.opcode, qpair->qid);
    4679           3 :                         break;
    4680             :                 }
    4681           1 :                 if (req->cmd->nvmf_cmd.fctype != SPDK_NVMF_FABRIC_COMMAND_CONNECT) {
    4682           0 :                         SPDK_ERRLOG("Received fctype 0x%x on qid %u before CONNECT\n",
    4683             :                                     req->cmd->nvmf_cmd.fctype, qpair->qid);
    4684           0 :                         break;
    4685             :                 }
    4686           1 :                 return true;
    4687           3 :         case SPDK_NVMF_QPAIR_AUTHENTICATING:
    4688           3 :                 sct = SPDK_NVME_SCT_COMMAND_SPECIFIC;
    4689           3 :                 sc = SPDK_NVMF_FABRIC_SC_AUTH_REQUIRED;
    4690           3 :                 if (req->cmd->nvmf_cmd.opcode != SPDK_NVME_OPC_FABRIC) {
    4691           1 :                         SPDK_ERRLOG("Received command 0x%x on qid %u before authentication\n",
    4692             :                                     req->cmd->nvmf_cmd.opcode, qpair->qid);
    4693           1 :                         break;
    4694             :                 }
    4695           2 :                 if (req->cmd->nvmf_cmd.fctype != SPDK_NVMF_FABRIC_COMMAND_AUTHENTICATION_SEND &&
    4696           1 :                     req->cmd->nvmf_cmd.fctype != SPDK_NVMF_FABRIC_COMMAND_AUTHENTICATION_RECV) {
    4697           0 :                         SPDK_ERRLOG("Received fctype 0x%x on qid %u before authentication\n",
    4698             :                                     req->cmd->nvmf_cmd.fctype, qpair->qid);
    4699           0 :                         break;
    4700             :                 }
    4701           2 :                 return true;
    4702           4 :         default:
    4703           4 :                 SPDK_ERRLOG("Received command 0x%x on qid %u in state %d\n",
    4704             :                             req->cmd->nvmf_cmd.opcode, qpair->qid, qpair->state);
    4705           4 :                 break;
    4706             :         }
    4707             : 
    4708           8 :         req->rsp->nvme_cpl.status.sct = sct;
    4709           8 :         req->rsp->nvme_cpl.status.sc = sc;
    4710           8 :         TAILQ_INSERT_TAIL(&qpair->outstanding, req, link);
    4711           8 :         _nvmf_request_complete(req);
    4712             : 
    4713           8 :         return false;
    4714             : }
    4715             : 
    4716             : void
    4717          15 : spdk_nvmf_request_exec(struct spdk_nvmf_request *req)
    4718             : {
    4719          15 :         struct spdk_nvmf_qpair *qpair = req->qpair;
    4720             :         enum spdk_nvmf_request_exec_status status;
    4721             : 
    4722          15 :         if (spdk_unlikely(!nvmf_check_subsystem_active(req))) {
    4723           3 :                 return;
    4724             :         }
    4725          12 :         if (spdk_unlikely(!nvmf_check_qpair_active(req))) {
    4726           2 :                 return;
    4727             :         }
    4728             : 
    4729          10 :         if (SPDK_DEBUGLOG_FLAG_ENABLED("nvmf")) {
    4730           0 :                 spdk_nvme_print_command(qpair->qid, &req->cmd->nvme_cmd);
    4731             :         }
    4732             : 
    4733             :         /* Place the request on the outstanding list so we can keep track of it */
    4734          10 :         TAILQ_INSERT_TAIL(&qpair->outstanding, req, link);
    4735             : 
    4736          10 :         if (spdk_unlikely(req->cmd->nvmf_cmd.opcode == SPDK_NVME_OPC_FABRIC)) {
    4737           0 :                 status = nvmf_ctrlr_process_fabrics_cmd(req);
    4738          10 :         } else if (spdk_unlikely(nvmf_qpair_is_admin_queue(qpair))) {
    4739           0 :                 status = nvmf_ctrlr_process_admin_cmd(req);
    4740             :         } else {
    4741          10 :                 status = nvmf_ctrlr_process_io_cmd(req);
    4742             :         }
    4743             : 
    4744          10 :         if (status == SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE) {
    4745           8 :                 _nvmf_request_complete(req);
    4746             :         }
    4747             : }
    4748             : 
    4749             : static bool
    4750           4 : nvmf_ctrlr_get_dif_ctx(struct spdk_nvmf_ctrlr *ctrlr, struct spdk_nvme_cmd *cmd,
    4751             :                        struct spdk_dif_ctx *dif_ctx)
    4752             : {
    4753             :         struct spdk_nvmf_ns *ns;
    4754             :         struct spdk_bdev *bdev;
    4755             : 
    4756           4 :         if (ctrlr == NULL || cmd == NULL) {
    4757           0 :                 return false;
    4758             :         }
    4759             : 
    4760           4 :         ns = nvmf_ctrlr_get_ns(ctrlr, cmd->nsid);
    4761           4 :         if (ns == NULL || ns->bdev == NULL) {
    4762           2 :                 return false;
    4763             :         }
    4764             : 
    4765           2 :         bdev = ns->bdev;
    4766             : 
    4767           2 :         switch (cmd->opc) {
    4768           1 :         case SPDK_NVME_OPC_READ:
    4769             :         case SPDK_NVME_OPC_WRITE:
    4770             :         case SPDK_NVME_OPC_COMPARE:
    4771           1 :                 return nvmf_bdev_ctrlr_get_dif_ctx(bdev, cmd, dif_ctx);
    4772           1 :         default:
    4773           1 :                 break;
    4774             :         }
    4775             : 
    4776           1 :         return false;
    4777             : }
    4778             : 
    4779             : bool
    4780          12 : spdk_nvmf_request_get_dif_ctx(struct spdk_nvmf_request *req, struct spdk_dif_ctx *dif_ctx)
    4781             : {
    4782          12 :         struct spdk_nvmf_qpair *qpair = req->qpair;
    4783          12 :         struct spdk_nvmf_ctrlr *ctrlr = qpair->ctrlr;
    4784             : 
    4785          12 :         if (spdk_likely(ctrlr == NULL || !ctrlr->dif_insert_or_strip)) {
    4786           5 :                 return false;
    4787             :         }
    4788             : 
    4789           7 :         if (spdk_unlikely(!spdk_nvmf_qpair_is_active(qpair))) {
    4790           1 :                 return false;
    4791             :         }
    4792             : 
    4793           6 :         if (spdk_unlikely(req->cmd->nvmf_cmd.opcode == SPDK_NVME_OPC_FABRIC)) {
    4794           1 :                 return false;
    4795             :         }
    4796             : 
    4797           5 :         if (spdk_unlikely(nvmf_qpair_is_admin_queue(qpair))) {
    4798           1 :                 return false;
    4799             :         }
    4800             : 
    4801           4 :         return nvmf_ctrlr_get_dif_ctx(ctrlr, &req->cmd->nvme_cmd, dif_ctx);
    4802             : }
    4803             : 
    4804             : void
    4805           1 : spdk_nvmf_set_custom_admin_cmd_hdlr(uint8_t opc, spdk_nvmf_custom_cmd_hdlr hdlr)
    4806             : {
    4807           1 :         g_nvmf_custom_admin_cmd_hdlrs[opc].hdlr = hdlr;
    4808           1 : }
    4809             : 
    4810             : static int
    4811           0 : nvmf_passthru_admin_cmd_for_bdev_nsid(struct spdk_nvmf_request *req, uint32_t bdev_nsid)
    4812             : {
    4813           0 :         struct spdk_bdev *bdev;
    4814           0 :         struct spdk_bdev_desc *desc;
    4815           0 :         struct spdk_io_channel *ch;
    4816           0 :         struct spdk_nvme_cpl *response = spdk_nvmf_request_get_response(req);
    4817             :         int rc;
    4818             : 
    4819           0 :         rc = spdk_nvmf_request_get_bdev(bdev_nsid, req, &bdev, &desc, &ch);
    4820           0 :         if (rc) {
    4821           0 :                 response->status.sct = SPDK_NVME_SCT_GENERIC;
    4822           0 :                 response->status.sc = SPDK_NVME_SC_INVALID_NAMESPACE_OR_FORMAT;
    4823           0 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    4824             :         }
    4825           0 :         return spdk_nvmf_bdev_ctrlr_nvme_passthru_admin(bdev, desc, ch, req, NULL);
    4826             : }
    4827             : 
    4828             : static int
    4829           0 : nvmf_passthru_admin_cmd(struct spdk_nvmf_request *req)
    4830             : {
    4831           0 :         struct spdk_nvme_cmd *cmd = spdk_nvmf_request_get_cmd(req);
    4832             :         uint32_t bdev_nsid;
    4833             : 
    4834           0 :         if (g_nvmf_custom_admin_cmd_hdlrs[cmd->opc].nsid != 0) {
    4835           0 :                 bdev_nsid = g_nvmf_custom_admin_cmd_hdlrs[cmd->opc].nsid;
    4836             :         } else {
    4837           0 :                 bdev_nsid = cmd->nsid;
    4838             :         }
    4839             : 
    4840           0 :         return nvmf_passthru_admin_cmd_for_bdev_nsid(req, bdev_nsid);
    4841             : }
    4842             : 
    4843             : int
    4844           0 : nvmf_passthru_admin_cmd_for_ctrlr(struct spdk_nvmf_request *req, struct spdk_nvmf_ctrlr *ctrlr)
    4845             : {
    4846           0 :         struct spdk_nvme_cpl *response = spdk_nvmf_request_get_response(req);
    4847             :         struct spdk_nvmf_ns *ns;
    4848             : 
    4849           0 :         ns = spdk_nvmf_subsystem_get_first_ns(ctrlr->subsys);
    4850           0 :         if (ns == NULL) {
    4851             :                 /* Is there a better sc to use here? */
    4852           0 :                 response->status.sct = SPDK_NVME_SCT_GENERIC;
    4853           0 :                 response->status.sc = SPDK_NVME_SC_INVALID_NAMESPACE_OR_FORMAT;
    4854           0 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
    4855             :         }
    4856             : 
    4857           0 :         return nvmf_passthru_admin_cmd_for_bdev_nsid(req, ns->nsid);
    4858             : }
    4859             : 
    4860             : void
    4861           0 : spdk_nvmf_set_passthru_admin_cmd(uint8_t opc, uint32_t forward_nsid)
    4862             : {
    4863           0 :         g_nvmf_custom_admin_cmd_hdlrs[opc].hdlr = nvmf_passthru_admin_cmd;
    4864           0 :         g_nvmf_custom_admin_cmd_hdlrs[opc].nsid = forward_nsid;
    4865           0 : }
    4866             : 
    4867             : int
    4868           0 : spdk_nvmf_request_get_bdev(uint32_t nsid, struct spdk_nvmf_request *req,
    4869             :                            struct spdk_bdev **bdev, struct spdk_bdev_desc **desc, struct spdk_io_channel **ch)
    4870             : {
    4871           0 :         struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
    4872             :         struct spdk_nvmf_ns *ns;
    4873           0 :         struct spdk_nvmf_poll_group *group = req->qpair->group;
    4874             :         struct spdk_nvmf_subsystem_pg_ns_info *ns_info;
    4875             : 
    4876           0 :         *bdev = NULL;
    4877           0 :         *desc = NULL;
    4878           0 :         *ch = NULL;
    4879             : 
    4880           0 :         ns = nvmf_ctrlr_get_ns(ctrlr, nsid);
    4881           0 :         if (ns == NULL || ns->bdev == NULL) {
    4882           0 :                 return -EINVAL;
    4883             :         }
    4884             : 
    4885           0 :         assert(group != NULL && group->sgroups != NULL);
    4886           0 :         ns_info = &group->sgroups[ctrlr->subsys->id].ns_info[nsid - 1];
    4887           0 :         *bdev = ns->bdev;
    4888           0 :         *desc = ns->desc;
    4889           0 :         *ch = ns_info->channel;
    4890             : 
    4891           0 :         return 0;
    4892             : }
    4893             : 
    4894           0 : struct spdk_nvmf_ctrlr *spdk_nvmf_request_get_ctrlr(struct spdk_nvmf_request *req)
    4895             : {
    4896           0 :         return req->qpair->ctrlr;
    4897             : }
    4898             : 
    4899           0 : struct spdk_nvme_cmd *spdk_nvmf_request_get_cmd(struct spdk_nvmf_request *req)
    4900             : {
    4901           0 :         return &req->cmd->nvme_cmd;
    4902             : }
    4903             : 
    4904           0 : struct spdk_nvme_cpl *spdk_nvmf_request_get_response(struct spdk_nvmf_request *req)
    4905             : {
    4906           0 :         return &req->rsp->nvme_cpl;
    4907             : }
    4908             : 
    4909           0 : struct spdk_nvmf_subsystem *spdk_nvmf_request_get_subsystem(struct spdk_nvmf_request *req)
    4910             : {
    4911           0 :         return req->qpair->ctrlr->subsys;
    4912             : }
    4913             : 
    4914             : size_t
    4915           0 : spdk_nvmf_request_copy_from_buf(struct spdk_nvmf_request *req,
    4916             :                                 void *buf, size_t buflen)
    4917             : {
    4918           0 :         struct spdk_iov_xfer ix;
    4919             : 
    4920           0 :         spdk_iov_xfer_init(&ix, req->iov, req->iovcnt);
    4921           0 :         return spdk_iov_xfer_from_buf(&ix, buf, buflen);
    4922             : }
    4923             : 
    4924             : size_t
    4925           0 : spdk_nvmf_request_copy_to_buf(struct spdk_nvmf_request *req,
    4926             :                               void *buf, size_t buflen)
    4927             : {
    4928           0 :         struct spdk_iov_xfer ix;
    4929             : 
    4930           0 :         spdk_iov_xfer_init(&ix, req->iov, req->iovcnt);
    4931           0 :         return spdk_iov_xfer_to_buf(&ix, buf, buflen);
    4932             : }
    4933             : 
    4934           0 : struct spdk_nvmf_subsystem *spdk_nvmf_ctrlr_get_subsystem(struct spdk_nvmf_ctrlr *ctrlr)
    4935             : {
    4936           0 :         return ctrlr->subsys;
    4937             : }
    4938             : 
    4939             : uint16_t
    4940           0 : spdk_nvmf_ctrlr_get_id(struct spdk_nvmf_ctrlr *ctrlr)
    4941             : {
    4942           0 :         return ctrlr->cntlid;
    4943             : }
    4944             : 
    4945           0 : struct spdk_nvmf_request *spdk_nvmf_request_get_req_to_abort(struct spdk_nvmf_request *req)
    4946             : {
    4947           0 :         return req->req_to_abort;
    4948             : }

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