LCOV - code coverage report
Current view: top level - lib/vhost - vhost_rpc.c (source / functions) Hit Total Coverage
Test: ut_cov_unit.info Lines: 0 277 0.0 %
Date: 2024-07-10 18:23:03 Functions: 0 32 0.0 %

          Line data    Source code
       1             : /*   SPDX-License-Identifier: BSD-3-Clause
       2             :  *   Copyright (C) 2017 Intel Corporation. All rights reserved.
       3             :  *   All rights reserved.
       4             :  */
       5             : 
       6             : #include "spdk/stdinc.h"
       7             : 
       8             : #include "spdk/log.h"
       9             : #include "spdk/rpc.h"
      10             : #include "spdk/util.h"
      11             : #include "spdk/string.h"
      12             : #include "spdk/env.h"
      13             : #include "spdk/log.h"
      14             : #include "spdk/scsi.h"
      15             : #include "spdk/vhost.h"
      16             : #include "vhost_internal.h"
      17             : #include "spdk/bdev.h"
      18             : 
      19             : struct rpc_vhost_scsi_ctrlr {
      20             :         char *ctrlr;
      21             :         char *cpumask;
      22             :         bool delay;
      23             : };
      24             : 
      25             : static void
      26           0 : free_rpc_vhost_scsi_ctrlr(struct rpc_vhost_scsi_ctrlr *req)
      27             : {
      28           0 :         free(req->ctrlr);
      29           0 :         free(req->cpumask);
      30           0 : }
      31             : 
      32             : static const struct spdk_json_object_decoder rpc_vhost_create_scsi_ctrlr[] = {
      33             :         {"ctrlr", offsetof(struct rpc_vhost_scsi_ctrlr, ctrlr), spdk_json_decode_string },
      34             :         {"cpumask", offsetof(struct rpc_vhost_scsi_ctrlr, cpumask), spdk_json_decode_string, true},
      35             :         {"delay", offsetof(struct rpc_vhost_scsi_ctrlr, delay), spdk_json_decode_bool, true},
      36             : };
      37             : 
      38             : static void
      39           0 : rpc_vhost_create_scsi_controller(struct spdk_jsonrpc_request *request,
      40             :                                  const struct spdk_json_val *params)
      41             : {
      42           0 :         struct rpc_vhost_scsi_ctrlr req = {0};
      43             :         int rc;
      44             : 
      45           0 :         if (spdk_json_decode_object(params, rpc_vhost_create_scsi_ctrlr,
      46             :                                     SPDK_COUNTOF(rpc_vhost_create_scsi_ctrlr),
      47             :                                     &req)) {
      48           0 :                 SPDK_DEBUGLOG(vhost_rpc, "spdk_json_decode_object failed\n");
      49           0 :                 rc = -EINVAL;
      50           0 :                 goto invalid;
      51             :         }
      52             : 
      53           0 :         if (req.delay) {
      54           0 :                 rc = spdk_vhost_scsi_dev_construct_no_start(req.ctrlr, req.cpumask);
      55             :         } else {
      56           0 :                 rc = spdk_vhost_scsi_dev_construct(req.ctrlr, req.cpumask);
      57             :         }
      58           0 :         if (rc < 0) {
      59           0 :                 goto invalid;
      60             :         }
      61             : 
      62           0 :         free_rpc_vhost_scsi_ctrlr(&req);
      63             : 
      64           0 :         spdk_jsonrpc_send_bool_response(request, true);
      65           0 :         return;
      66             : 
      67           0 : invalid:
      68           0 :         free_rpc_vhost_scsi_ctrlr(&req);
      69           0 :         spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
      70             :                                          spdk_strerror(-rc));
      71             : }
      72           0 : SPDK_RPC_REGISTER("vhost_create_scsi_controller", rpc_vhost_create_scsi_controller,
      73             :                   SPDK_RPC_RUNTIME)
      74             : 
      75             : struct rpc_start_vhost_scsi_ctrlr {
      76             :         char *ctrlr;
      77             : };
      78             : 
      79             : static void
      80           0 : free_rpc_start_vhost_scsi_ctrlr(struct rpc_start_vhost_scsi_ctrlr *req)
      81             : {
      82           0 :         free(req->ctrlr);
      83           0 : }
      84             : 
      85             : static const struct spdk_json_object_decoder rpc_start_vhost_scsi_ctrlr_decoder[] = {
      86             :         {"ctrlr", offsetof(struct rpc_start_vhost_scsi_ctrlr, ctrlr), spdk_json_decode_string },
      87             : };
      88             : 
      89             : static void
      90           0 : rpc_vhost_start_scsi_controller(struct spdk_jsonrpc_request *request,
      91             :                                 const struct spdk_json_val *params)
      92             : {
      93           0 :         struct rpc_start_vhost_scsi_ctrlr req = {0};
      94             :         int rc;
      95             : 
      96           0 :         if (spdk_json_decode_object(params, rpc_start_vhost_scsi_ctrlr_decoder,
      97             :                                     SPDK_COUNTOF(rpc_start_vhost_scsi_ctrlr_decoder),
      98             :                                     &req)) {
      99           0 :                 SPDK_DEBUGLOG(vhost_rpc, "spdk_json_decode_object failed\n");
     100           0 :                 rc = -EINVAL;
     101           0 :                 goto invalid;
     102             :         }
     103             : 
     104           0 :         rc = vhost_scsi_controller_start(req.ctrlr);
     105           0 :         if (rc < 0) {
     106           0 :                 goto invalid;
     107             :         }
     108             : 
     109           0 :         free_rpc_start_vhost_scsi_ctrlr(&req);
     110             : 
     111           0 :         spdk_jsonrpc_send_bool_response(request, true);
     112           0 :         return;
     113             : 
     114           0 : invalid:
     115           0 :         free_rpc_start_vhost_scsi_ctrlr(&req);
     116           0 :         spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
     117             :                                          spdk_strerror(-rc));
     118             : }
     119           0 : SPDK_RPC_REGISTER("vhost_start_scsi_controller", rpc_vhost_start_scsi_controller,
     120             :                   SPDK_RPC_RUNTIME)
     121             : 
     122             : struct rpc_vhost_scsi_ctrlr_add_target {
     123             :         char *ctrlr;
     124             :         int32_t scsi_target_num;
     125             :         char *bdev_name;
     126             : };
     127             : 
     128             : static void
     129           0 : free_rpc_vhost_scsi_ctrlr_add_target(struct rpc_vhost_scsi_ctrlr_add_target *req)
     130             : {
     131           0 :         free(req->ctrlr);
     132           0 :         free(req->bdev_name);
     133           0 : }
     134             : 
     135             : static const struct spdk_json_object_decoder rpc_vhost_scsi_ctrlr_add_target[] = {
     136             :         {"ctrlr", offsetof(struct rpc_vhost_scsi_ctrlr_add_target, ctrlr), spdk_json_decode_string },
     137             :         {"scsi_target_num", offsetof(struct rpc_vhost_scsi_ctrlr_add_target, scsi_target_num), spdk_json_decode_int32},
     138             :         {"bdev_name", offsetof(struct rpc_vhost_scsi_ctrlr_add_target, bdev_name), spdk_json_decode_string },
     139             : };
     140             : 
     141             : static void
     142           0 : rpc_vhost_scsi_controller_add_target(struct spdk_jsonrpc_request *request,
     143             :                                      const struct spdk_json_val *params)
     144             : {
     145           0 :         struct rpc_vhost_scsi_ctrlr_add_target req = {0};
     146             :         struct spdk_json_write_ctx *w;
     147             :         struct spdk_vhost_dev *vdev;
     148             :         int rc;
     149             : 
     150           0 :         if (spdk_json_decode_object(params, rpc_vhost_scsi_ctrlr_add_target,
     151             :                                     SPDK_COUNTOF(rpc_vhost_scsi_ctrlr_add_target),
     152             :                                     &req)) {
     153           0 :                 SPDK_DEBUGLOG(vhost_rpc, "spdk_json_decode_object failed\n");
     154           0 :                 rc = -EINVAL;
     155           0 :                 goto invalid;
     156             :         }
     157             : 
     158           0 :         spdk_vhost_lock();
     159           0 :         vdev = spdk_vhost_dev_find(req.ctrlr);
     160           0 :         if (vdev == NULL) {
     161           0 :                 spdk_vhost_unlock();
     162           0 :                 rc = -ENODEV;
     163           0 :                 goto invalid;
     164             :         }
     165             : 
     166           0 :         rc = spdk_vhost_scsi_dev_add_tgt(vdev, req.scsi_target_num, req.bdev_name);
     167           0 :         spdk_vhost_unlock();
     168           0 :         if (rc < 0) {
     169           0 :                 goto invalid;
     170             :         }
     171             : 
     172           0 :         free_rpc_vhost_scsi_ctrlr_add_target(&req);
     173             : 
     174           0 :         w = spdk_jsonrpc_begin_result(request);
     175           0 :         spdk_json_write_int32(w, rc);
     176           0 :         spdk_jsonrpc_end_result(request, w);
     177           0 :         return;
     178             : 
     179           0 : invalid:
     180           0 :         free_rpc_vhost_scsi_ctrlr_add_target(&req);
     181           0 :         spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
     182             :                                          spdk_strerror(-rc));
     183             : }
     184           0 : SPDK_RPC_REGISTER("vhost_scsi_controller_add_target", rpc_vhost_scsi_controller_add_target,
     185             :                   SPDK_RPC_RUNTIME)
     186             : 
     187             : struct rpc_remove_vhost_scsi_ctrlr_target {
     188             :         char *ctrlr;
     189             :         uint32_t scsi_target_num;
     190             : };
     191             : 
     192             : static void
     193           0 : free_rpc_remove_vhost_scsi_ctrlr_target(struct rpc_remove_vhost_scsi_ctrlr_target *req)
     194             : {
     195           0 :         free(req->ctrlr);
     196           0 : }
     197             : 
     198             : static const struct spdk_json_object_decoder rpc_vhost_remove_target[] = {
     199             :         {"ctrlr", offsetof(struct rpc_remove_vhost_scsi_ctrlr_target, ctrlr), spdk_json_decode_string },
     200             :         {"scsi_target_num", offsetof(struct rpc_remove_vhost_scsi_ctrlr_target, scsi_target_num), spdk_json_decode_uint32},
     201             : };
     202             : 
     203             : static int
     204           0 : rpc_vhost_scsi_controller_remove_target_finish_cb(struct spdk_vhost_dev *vdev, void *arg)
     205             : {
     206           0 :         struct spdk_jsonrpc_request *request = arg;
     207             : 
     208           0 :         spdk_jsonrpc_send_bool_response(request, true);
     209           0 :         return 0;
     210             : }
     211             : 
     212             : static void
     213           0 : rpc_vhost_scsi_controller_remove_target(struct spdk_jsonrpc_request *request,
     214             :                                         const struct spdk_json_val *params)
     215             : {
     216           0 :         struct rpc_remove_vhost_scsi_ctrlr_target req = {0};
     217             :         struct spdk_vhost_dev *vdev;
     218             :         int rc;
     219             : 
     220           0 :         if (spdk_json_decode_object(params, rpc_vhost_remove_target,
     221             :                                     SPDK_COUNTOF(rpc_vhost_remove_target),
     222             :                                     &req)) {
     223           0 :                 SPDK_DEBUGLOG(vhost_rpc, "spdk_json_decode_object failed\n");
     224           0 :                 rc = -EINVAL;
     225           0 :                 goto invalid;
     226             :         }
     227             : 
     228           0 :         spdk_vhost_lock();
     229           0 :         vdev = spdk_vhost_dev_find(req.ctrlr);
     230           0 :         if (vdev == NULL) {
     231           0 :                 spdk_vhost_unlock();
     232           0 :                 rc = -ENODEV;
     233           0 :                 goto invalid;
     234             :         }
     235             : 
     236           0 :         rc = spdk_vhost_scsi_dev_remove_tgt(vdev, req.scsi_target_num,
     237             :                                             rpc_vhost_scsi_controller_remove_target_finish_cb,
     238             :                                             request);
     239           0 :         spdk_vhost_unlock();
     240           0 :         if (rc < 0) {
     241           0 :                 goto invalid;
     242             :         }
     243             : 
     244           0 :         free_rpc_remove_vhost_scsi_ctrlr_target(&req);
     245           0 :         return;
     246             : 
     247           0 : invalid:
     248           0 :         free_rpc_remove_vhost_scsi_ctrlr_target(&req);
     249           0 :         spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
     250             :                                          spdk_strerror(-rc));
     251             : }
     252             : 
     253           0 : SPDK_RPC_REGISTER("vhost_scsi_controller_remove_target",
     254             :                   rpc_vhost_scsi_controller_remove_target, SPDK_RPC_RUNTIME)
     255             : 
     256             : struct rpc_vhost_blk_ctrlr {
     257             :         char *ctrlr;
     258             :         char *dev_name;
     259             :         char *cpumask;
     260             :         char *transport;
     261             : };
     262             : 
     263             : static const struct spdk_json_object_decoder rpc_construct_vhost_blk_ctrlr[] = {
     264             :         {"ctrlr", offsetof(struct rpc_vhost_blk_ctrlr, ctrlr), spdk_json_decode_string },
     265             :         {"dev_name", offsetof(struct rpc_vhost_blk_ctrlr, dev_name), spdk_json_decode_string },
     266             :         {"cpumask", offsetof(struct rpc_vhost_blk_ctrlr, cpumask), spdk_json_decode_string, true},
     267             :         {"transport", offsetof(struct rpc_vhost_blk_ctrlr, transport), spdk_json_decode_string, true},
     268             : };
     269             : 
     270             : static void
     271           0 : free_rpc_vhost_blk_ctrlr(struct rpc_vhost_blk_ctrlr *req)
     272             : {
     273           0 :         free(req->ctrlr);
     274           0 :         free(req->dev_name);
     275           0 :         free(req->cpumask);
     276           0 :         free(req->transport);
     277           0 : }
     278             : 
     279             : static void
     280           0 : rpc_vhost_create_blk_controller(struct spdk_jsonrpc_request *request,
     281             :                                 const struct spdk_json_val *params)
     282             : {
     283           0 :         struct rpc_vhost_blk_ctrlr req = {0};
     284             :         int rc;
     285             : 
     286           0 :         if (spdk_json_decode_object_relaxed(params, rpc_construct_vhost_blk_ctrlr,
     287             :                                             SPDK_COUNTOF(rpc_construct_vhost_blk_ctrlr),
     288             :                                             &req)) {
     289           0 :                 SPDK_DEBUGLOG(vhost_rpc, "spdk_json_decode_object failed\n");
     290           0 :                 rc = -EINVAL;
     291           0 :                 goto invalid;
     292             :         }
     293             : 
     294           0 :         rc = spdk_vhost_blk_construct(req.ctrlr, req.cpumask, req.dev_name, req.transport, params);
     295           0 :         if (rc < 0) {
     296           0 :                 goto invalid;
     297             :         }
     298             : 
     299           0 :         free_rpc_vhost_blk_ctrlr(&req);
     300             : 
     301           0 :         spdk_jsonrpc_send_bool_response(request, true);
     302           0 :         return;
     303             : 
     304           0 : invalid:
     305           0 :         free_rpc_vhost_blk_ctrlr(&req);
     306           0 :         spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
     307             :                                          spdk_strerror(-rc));
     308             : 
     309             : }
     310           0 : SPDK_RPC_REGISTER("vhost_create_blk_controller", rpc_vhost_create_blk_controller,
     311             :                   SPDK_RPC_RUNTIME)
     312             : 
     313             : struct rpc_delete_vhost_ctrlr {
     314             :         char *ctrlr;
     315             : };
     316             : 
     317             : static const struct spdk_json_object_decoder rpc_delete_vhost_ctrlr_decoder[] = {
     318             :         {"ctrlr", offsetof(struct rpc_delete_vhost_ctrlr, ctrlr), spdk_json_decode_string },
     319             : };
     320             : 
     321             : static void
     322           0 : free_rpc_delete_vhost_ctrlr(struct rpc_delete_vhost_ctrlr *req)
     323             : {
     324           0 :         free(req->ctrlr);
     325           0 : }
     326             : 
     327             : static void
     328           0 : rpc_vhost_delete_controller(struct spdk_jsonrpc_request *request,
     329             :                             const struct spdk_json_val *params)
     330             : {
     331           0 :         struct rpc_delete_vhost_ctrlr req = {0};
     332             :         struct spdk_vhost_dev *vdev;
     333             :         int rc;
     334             : 
     335           0 :         if (spdk_json_decode_object(params, rpc_delete_vhost_ctrlr_decoder,
     336             :                                     SPDK_COUNTOF(rpc_delete_vhost_ctrlr_decoder), &req)) {
     337           0 :                 SPDK_DEBUGLOG(vhost_rpc, "spdk_json_decode_object failed\n");
     338           0 :                 rc = -EINVAL;
     339           0 :                 goto invalid;
     340             :         }
     341             : 
     342           0 :         spdk_vhost_lock();
     343           0 :         vdev = spdk_vhost_dev_find(req.ctrlr);
     344           0 :         if (vdev == NULL) {
     345           0 :                 spdk_vhost_unlock();
     346           0 :                 rc = -ENODEV;
     347           0 :                 goto invalid;
     348             :         }
     349           0 :         spdk_vhost_unlock();
     350             : 
     351           0 :         rc = spdk_vhost_dev_remove(vdev);
     352           0 :         if (rc < 0) {
     353           0 :                 goto invalid;
     354             :         }
     355             : 
     356           0 :         free_rpc_delete_vhost_ctrlr(&req);
     357             : 
     358           0 :         spdk_jsonrpc_send_bool_response(request, true);
     359           0 :         return;
     360             : 
     361           0 : invalid:
     362           0 :         free_rpc_delete_vhost_ctrlr(&req);
     363           0 :         spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
     364             :                                          spdk_strerror(-rc));
     365             : 
     366             : }
     367           0 : SPDK_RPC_REGISTER("vhost_delete_controller", rpc_vhost_delete_controller, SPDK_RPC_RUNTIME)
     368             : 
     369             : struct rpc_get_vhost_ctrlrs {
     370             :         char *name;
     371             : };
     372             : 
     373             : static void
     374           0 : _rpc_get_vhost_controller(struct spdk_json_write_ctx *w, struct spdk_vhost_dev *vdev)
     375             : {
     376           0 :         uint32_t delay_base_us, iops_threshold;
     377             : 
     378           0 :         spdk_vhost_get_coalescing(vdev, &delay_base_us, &iops_threshold);
     379             : 
     380           0 :         spdk_json_write_object_begin(w);
     381             : 
     382           0 :         spdk_json_write_named_string(w, "ctrlr", spdk_vhost_dev_get_name(vdev));
     383           0 :         spdk_json_write_named_string_fmt(w, "cpumask", "0x%s",
     384             :                                          spdk_cpuset_fmt(spdk_thread_get_cpumask(vdev->thread)));
     385           0 :         spdk_json_write_named_uint32(w, "delay_base_us", delay_base_us);
     386           0 :         spdk_json_write_named_uint32(w, "iops_threshold", iops_threshold);
     387           0 :         spdk_json_write_named_string(w, "socket", vdev->path);
     388           0 :         spdk_json_write_named_array_begin(w, "sessions");
     389           0 :         vhost_session_info_json(vdev, w);
     390           0 :         spdk_json_write_array_end(w);
     391             : 
     392           0 :         spdk_json_write_named_object_begin(w, "backend_specific");
     393           0 :         vhost_dump_info_json(vdev, w);
     394           0 :         spdk_json_write_object_end(w);
     395             : 
     396           0 :         spdk_json_write_object_end(w);
     397           0 : }
     398             : 
     399             : static const struct spdk_json_object_decoder rpc_get_vhost_ctrlrs_decoders[] = {
     400             :         {"name", offsetof(struct rpc_get_vhost_ctrlrs, name), spdk_json_decode_string, true},
     401             : };
     402             : 
     403             : static void
     404           0 : free_rpc_get_vhost_ctrlrs(struct rpc_get_vhost_ctrlrs *req)
     405             : {
     406           0 :         free(req->name);
     407           0 : }
     408             : 
     409             : static void
     410           0 : rpc_vhost_get_controllers(struct spdk_jsonrpc_request *request,
     411             :                           const struct spdk_json_val *params)
     412             : {
     413           0 :         struct rpc_get_vhost_ctrlrs req = {0};
     414             :         struct spdk_json_write_ctx *w;
     415             :         struct spdk_vhost_dev *vdev;
     416             :         int rc;
     417             : 
     418           0 :         if (params && spdk_json_decode_object(params, rpc_get_vhost_ctrlrs_decoders,
     419             :                                               SPDK_COUNTOF(rpc_get_vhost_ctrlrs_decoders), &req)) {
     420           0 :                 SPDK_ERRLOG("spdk_json_decode_object failed\n");
     421           0 :                 rc = -EINVAL;
     422           0 :                 goto invalid;
     423             :         }
     424             : 
     425           0 :         spdk_vhost_lock();
     426           0 :         if (req.name != NULL) {
     427           0 :                 vdev = spdk_vhost_dev_find(req.name);
     428           0 :                 if (vdev == NULL) {
     429           0 :                         spdk_vhost_unlock();
     430           0 :                         rc = -ENODEV;
     431           0 :                         goto invalid;
     432             :                 }
     433             : 
     434           0 :                 free_rpc_get_vhost_ctrlrs(&req);
     435             : 
     436           0 :                 w = spdk_jsonrpc_begin_result(request);
     437           0 :                 spdk_json_write_array_begin(w);
     438             : 
     439           0 :                 _rpc_get_vhost_controller(w, vdev);
     440           0 :                 spdk_vhost_unlock();
     441             : 
     442           0 :                 spdk_json_write_array_end(w);
     443           0 :                 spdk_jsonrpc_end_result(request, w);
     444           0 :                 return;
     445             :         }
     446             : 
     447           0 :         free_rpc_get_vhost_ctrlrs(&req);
     448             : 
     449           0 :         w = spdk_jsonrpc_begin_result(request);
     450           0 :         spdk_json_write_array_begin(w);
     451             : 
     452           0 :         vdev = spdk_vhost_dev_next(NULL);
     453           0 :         while (vdev != NULL) {
     454           0 :                 _rpc_get_vhost_controller(w, vdev);
     455           0 :                 vdev = spdk_vhost_dev_next(vdev);
     456             :         }
     457           0 :         spdk_vhost_unlock();
     458             : 
     459           0 :         spdk_json_write_array_end(w);
     460           0 :         spdk_jsonrpc_end_result(request, w);
     461           0 :         return;
     462             : 
     463           0 : invalid:
     464           0 :         free_rpc_get_vhost_ctrlrs(&req);
     465           0 :         spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
     466             :                                          spdk_strerror(-rc));
     467             : }
     468           0 : SPDK_RPC_REGISTER("vhost_get_controllers", rpc_vhost_get_controllers, SPDK_RPC_RUNTIME)
     469             : 
     470             : 
     471             : struct rpc_vhost_ctrlr_coalescing {
     472             :         char *ctrlr;
     473             :         uint32_t delay_base_us;
     474             :         uint32_t iops_threshold;
     475             : };
     476             : 
     477             : static const struct spdk_json_object_decoder rpc_set_vhost_ctrlr_coalescing[] = {
     478             :         {"ctrlr", offsetof(struct rpc_vhost_ctrlr_coalescing, ctrlr), spdk_json_decode_string },
     479             :         {"delay_base_us", offsetof(struct rpc_vhost_ctrlr_coalescing, delay_base_us), spdk_json_decode_uint32},
     480             :         {"iops_threshold", offsetof(struct rpc_vhost_ctrlr_coalescing, iops_threshold), spdk_json_decode_uint32},
     481             : };
     482             : 
     483             : static void
     484           0 : free_rpc_set_vhost_controllers_event_coalescing(struct rpc_vhost_ctrlr_coalescing *req)
     485             : {
     486           0 :         free(req->ctrlr);
     487           0 : }
     488             : 
     489             : static void
     490           0 : rpc_vhost_controller_set_coalescing(struct spdk_jsonrpc_request *request,
     491             :                                     const struct spdk_json_val *params)
     492             : {
     493           0 :         struct rpc_vhost_ctrlr_coalescing req = {0};
     494             :         struct spdk_vhost_dev *vdev;
     495             :         int rc;
     496             : 
     497           0 :         if (spdk_json_decode_object(params, rpc_set_vhost_ctrlr_coalescing,
     498             :                                     SPDK_COUNTOF(rpc_set_vhost_ctrlr_coalescing), &req)) {
     499           0 :                 SPDK_DEBUGLOG(vhost_rpc, "spdk_json_decode_object failed\n");
     500           0 :                 rc = -EINVAL;
     501           0 :                 goto invalid;
     502             :         }
     503             : 
     504           0 :         spdk_vhost_lock();
     505           0 :         vdev = spdk_vhost_dev_find(req.ctrlr);
     506           0 :         if (vdev == NULL) {
     507           0 :                 spdk_vhost_unlock();
     508           0 :                 rc = -ENODEV;
     509           0 :                 goto invalid;
     510             :         }
     511             : 
     512           0 :         rc = spdk_vhost_set_coalescing(vdev, req.delay_base_us, req.iops_threshold);
     513           0 :         spdk_vhost_unlock();
     514           0 :         if (rc) {
     515           0 :                 goto invalid;
     516             :         }
     517             : 
     518           0 :         free_rpc_set_vhost_controllers_event_coalescing(&req);
     519             : 
     520           0 :         spdk_jsonrpc_send_bool_response(request, true);
     521           0 :         return;
     522             : 
     523           0 : invalid:
     524           0 :         free_rpc_set_vhost_controllers_event_coalescing(&req);
     525           0 :         spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
     526             :                                          spdk_strerror(-rc));
     527             : }
     528           0 : SPDK_RPC_REGISTER("vhost_controller_set_coalescing", rpc_vhost_controller_set_coalescing,
     529             :                   SPDK_RPC_RUNTIME)
     530             : 
     531             : struct rpc_get_transport {
     532             :         char *name;
     533             : };
     534             : 
     535             : static const struct spdk_json_object_decoder rpc_get_transport_decoders[] = {
     536             :         {"name", offsetof(struct rpc_get_transport, name), spdk_json_decode_string, true},
     537             : };
     538             : 
     539             : static void
     540           0 : rpc_virtio_blk_get_transports(struct spdk_jsonrpc_request *request,
     541             :                               const struct spdk_json_val *params)
     542             : {
     543           0 :         struct rpc_get_transport req = { 0 };
     544             :         struct spdk_json_write_ctx *w;
     545           0 :         struct spdk_virtio_blk_transport *transport = NULL;
     546             : 
     547           0 :         if (params) {
     548           0 :                 if (spdk_json_decode_object(params, rpc_get_transport_decoders,
     549             :                                             SPDK_COUNTOF(rpc_get_transport_decoders),
     550             :                                             &req)) {
     551           0 :                         SPDK_ERRLOG("spdk_json_decode_object failed\n");
     552           0 :                         spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid parameters");
     553           0 :                         return;
     554             :                 }
     555             :         }
     556             : 
     557           0 :         if (req.name) {
     558           0 :                 transport = virtio_blk_tgt_get_transport(req.name);
     559           0 :                 if (transport == NULL) {
     560           0 :                         SPDK_ERRLOG("transport '%s' does not exist\n", req.name);
     561           0 :                         spdk_jsonrpc_send_error_response(request, -ENODEV, spdk_strerror(ENODEV));
     562           0 :                         free(req.name);
     563           0 :                         return;
     564             :                 }
     565             :         }
     566             : 
     567           0 :         w = spdk_jsonrpc_begin_result(request);
     568           0 :         spdk_json_write_array_begin(w);
     569             : 
     570           0 :         if (transport) {
     571           0 :                 virtio_blk_transport_dump_opts(transport, w);
     572             :         } else {
     573           0 :                 for (transport = virtio_blk_transport_get_first(); transport != NULL;
     574           0 :                      transport = virtio_blk_transport_get_next(transport)) {
     575           0 :                         virtio_blk_transport_dump_opts(transport, w);
     576             :                 }
     577             :         }
     578             : 
     579           0 :         spdk_json_write_array_end(w);
     580           0 :         spdk_jsonrpc_end_result(request, w);
     581           0 :         free(req.name);
     582             : }
     583           0 : SPDK_RPC_REGISTER("virtio_blk_get_transports", rpc_virtio_blk_get_transports, SPDK_RPC_RUNTIME)
     584             : 
     585             : struct rpc_virtio_blk_create_transport {
     586             :         char *name;
     587             : };
     588             : 
     589             : static const struct spdk_json_object_decoder rpc_create_virtio_blk_transport[] = {
     590             :         {"name", offsetof(struct rpc_virtio_blk_create_transport, name), spdk_json_decode_string},
     591             : };
     592             : 
     593             : static void
     594           0 : free_rpc_virtio_blk_create_transport(struct rpc_virtio_blk_create_transport *req)
     595             : {
     596           0 :         free(req->name);
     597           0 : }
     598             : 
     599             : static void
     600           0 : rpc_virtio_blk_create_transport(struct spdk_jsonrpc_request *request,
     601             :                                 const struct spdk_json_val *params)
     602             : {
     603           0 :         struct rpc_virtio_blk_create_transport req = {0};
     604             :         int rc;
     605             : 
     606           0 :         if (spdk_json_decode_object_relaxed(params, rpc_create_virtio_blk_transport,
     607             :                                             SPDK_COUNTOF(rpc_create_virtio_blk_transport), &req)) {
     608           0 :                 SPDK_DEBUGLOG(vhost_rpc, "spdk_json_decode_object failed\n");
     609           0 :                 rc = -EINVAL;
     610           0 :                 goto invalid;
     611             :         }
     612             : 
     613           0 :         spdk_vhost_lock();
     614           0 :         rc = virtio_blk_transport_create(req.name, params);
     615           0 :         spdk_vhost_unlock();
     616           0 :         if (rc != 0) {
     617           0 :                 goto invalid;
     618             :         }
     619             : 
     620           0 :         free_rpc_virtio_blk_create_transport(&req);
     621           0 :         spdk_jsonrpc_send_bool_response(request, true);
     622           0 :         return;
     623             : 
     624           0 : invalid:
     625           0 :         free_rpc_virtio_blk_create_transport(&req);
     626           0 :         spdk_jsonrpc_send_error_response(request, rc, spdk_strerror(-rc));
     627             : }
     628           0 : SPDK_RPC_REGISTER("virtio_blk_create_transport", rpc_virtio_blk_create_transport,
     629             :                   SPDK_RPC_RUNTIME)
     630             : 
     631           0 : SPDK_LOG_REGISTER_COMPONENT(vhost_rpc)

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