LCOV - code coverage report
Current view: top level - module/bdev/null - bdev_null_rpc.c (source / functions) Hit Total Coverage
Test: ut_cov_unit.info Lines: 0 87 0.0 %
Date: 2024-07-13 04:01:10 Functions: 0 10 0.0 %

          Line data    Source code
       1             : /*   SPDX-License-Identifier: BSD-3-Clause
       2             :  *   Copyright (C) 2017 Intel Corporation. All rights reserved.
       3             :  *   Copyright (c) 2019 Mellanox Technologies LTD. All rights reserved.
       4             :  */
       5             : 
       6             : #include "spdk/rpc.h"
       7             : #include "spdk/util.h"
       8             : #include "spdk/string.h"
       9             : #include "spdk/bdev_module.h"
      10             : #include "spdk/log.h"
      11             : 
      12             : #include "bdev_null.h"
      13             : 
      14             : struct rpc_construct_null {
      15             :         char *name;
      16             :         struct spdk_uuid uuid;
      17             :         uint64_t num_blocks;
      18             :         uint32_t block_size;
      19             :         uint32_t physical_block_size;
      20             :         uint32_t md_size;
      21             :         int32_t dif_type;
      22             :         bool dif_is_head_of_md;
      23             : };
      24             : 
      25             : static void
      26           0 : free_rpc_construct_null(struct rpc_construct_null *req)
      27             : {
      28           0 :         free(req->name);
      29           0 : }
      30             : 
      31             : static const struct spdk_json_object_decoder rpc_construct_null_decoders[] = {
      32             :         {"name", offsetof(struct rpc_construct_null, name), spdk_json_decode_string},
      33             :         {"uuid", offsetof(struct rpc_construct_null, uuid), spdk_json_decode_uuid, true},
      34             :         {"num_blocks", offsetof(struct rpc_construct_null, num_blocks), spdk_json_decode_uint64},
      35             :         {"block_size", offsetof(struct rpc_construct_null, block_size), spdk_json_decode_uint32},
      36             :         {"physical_block_size", offsetof(struct rpc_construct_null, physical_block_size), spdk_json_decode_uint32, true},
      37             :         {"md_size", offsetof(struct rpc_construct_null, md_size), spdk_json_decode_uint32, true},
      38             :         {"dif_type", offsetof(struct rpc_construct_null, dif_type), spdk_json_decode_int32, true},
      39             :         {"dif_is_head_of_md", offsetof(struct rpc_construct_null, dif_is_head_of_md), spdk_json_decode_bool, true},
      40             : };
      41             : 
      42             : static void
      43           0 : rpc_bdev_null_create(struct spdk_jsonrpc_request *request,
      44             :                      const struct spdk_json_val *params)
      45             : {
      46           0 :         struct rpc_construct_null req = {};
      47             :         struct spdk_json_write_ctx *w;
      48           0 :         struct spdk_bdev *bdev;
      49           0 :         struct spdk_null_bdev_opts opts = {};
      50           0 :         int rc = 0;
      51             : 
      52           0 :         if (spdk_json_decode_object(params, rpc_construct_null_decoders,
      53             :                                     SPDK_COUNTOF(rpc_construct_null_decoders),
      54             :                                     &req)) {
      55           0 :                 SPDK_DEBUGLOG(bdev_null, "spdk_json_decode_object failed\n");
      56           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
      57             :                                                  "spdk_json_decode_object failed");
      58           0 :                 goto cleanup;
      59             :         }
      60             : 
      61           0 :         if (req.block_size < req.md_size) {
      62           0 :                 spdk_jsonrpc_send_error_response_fmt(request, -EINVAL,
      63             :                                                      "Interleaved metadata size can not be greater than block size");
      64           0 :                 goto cleanup;
      65             :         }
      66             : 
      67           0 :         if (req.block_size % 512 != 0) {
      68           0 :                 spdk_jsonrpc_send_error_response_fmt(request, -EINVAL,
      69             :                                                      "Data block size %u is not a multiple of 512", req.block_size);
      70           0 :                 goto cleanup;
      71             :         }
      72             : 
      73           0 :         if (req.physical_block_size % 512 != 0) {
      74           0 :                 spdk_jsonrpc_send_error_response_fmt(request, -EINVAL,
      75             :                                                      "Physical block size %u is not a multiple of 512", req.physical_block_size);
      76             :         }
      77             : 
      78           0 :         if (req.num_blocks == 0) {
      79           0 :                 spdk_jsonrpc_send_error_response(request, -EINVAL,
      80             :                                                  "Disk num_blocks must be greater than 0");
      81           0 :                 goto cleanup;
      82             :         }
      83             : 
      84           0 :         if (req.dif_type < SPDK_DIF_DISABLE || req.dif_type > SPDK_DIF_TYPE3) {
      85           0 :                 spdk_jsonrpc_send_error_response(request, -EINVAL, "Invalid protection information type");
      86           0 :                 goto cleanup;
      87             :         }
      88             : 
      89           0 :         if (req.dif_type != SPDK_DIF_DISABLE && !req.md_size) {
      90           0 :                 spdk_jsonrpc_send_error_response(request, -EINVAL,
      91             :                                                  "Interleaved metadata size should be set for DIF");
      92           0 :                 goto cleanup;
      93             :         }
      94             : 
      95           0 :         opts.name = req.name;
      96           0 :         opts.uuid = &req.uuid;
      97           0 :         opts.num_blocks = req.num_blocks;
      98           0 :         opts.block_size = req.block_size + req.md_size;
      99           0 :         opts.physical_block_size = req.physical_block_size;
     100           0 :         opts.md_size = req.md_size;
     101           0 :         opts.md_interleave = true;
     102           0 :         opts.dif_type = req.dif_type;
     103           0 :         opts.dif_is_head_of_md = req.dif_is_head_of_md;
     104           0 :         rc = bdev_null_create(&bdev, &opts);
     105           0 :         if (rc) {
     106           0 :                 spdk_jsonrpc_send_error_response(request, rc, spdk_strerror(-rc));
     107           0 :                 goto cleanup;
     108             :         }
     109             : 
     110           0 :         w = spdk_jsonrpc_begin_result(request);
     111           0 :         spdk_json_write_string(w, bdev->name);
     112           0 :         spdk_jsonrpc_end_result(request, w);
     113           0 :         free_rpc_construct_null(&req);
     114           0 :         return;
     115             : 
     116           0 : cleanup:
     117           0 :         free_rpc_construct_null(&req);
     118             : }
     119           0 : SPDK_RPC_REGISTER("bdev_null_create", rpc_bdev_null_create, SPDK_RPC_RUNTIME)
     120             : 
     121             : struct rpc_delete_null {
     122             :         char *name;
     123             : };
     124             : 
     125             : static void
     126           0 : free_rpc_delete_null(struct rpc_delete_null *req)
     127             : {
     128           0 :         free(req->name);
     129           0 : }
     130             : 
     131             : static const struct spdk_json_object_decoder rpc_delete_null_decoders[] = {
     132             :         {"name", offsetof(struct rpc_delete_null, name), spdk_json_decode_string},
     133             : };
     134             : 
     135             : static void
     136           0 : rpc_bdev_null_delete_cb(void *cb_arg, int bdeverrno)
     137             : {
     138           0 :         struct spdk_jsonrpc_request *request = cb_arg;
     139             : 
     140           0 :         if (bdeverrno == 0) {
     141           0 :                 spdk_jsonrpc_send_bool_response(request, true);
     142             :         } else {
     143           0 :                 spdk_jsonrpc_send_error_response(request, bdeverrno, spdk_strerror(-bdeverrno));
     144             :         }
     145           0 : }
     146             : 
     147             : static void
     148           0 : rpc_bdev_null_delete(struct spdk_jsonrpc_request *request,
     149             :                      const struct spdk_json_val *params)
     150             : {
     151           0 :         struct rpc_delete_null req = {NULL};
     152             : 
     153           0 :         if (spdk_json_decode_object(params, rpc_delete_null_decoders,
     154             :                                     SPDK_COUNTOF(rpc_delete_null_decoders),
     155             :                                     &req)) {
     156           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
     157             :                                                  "spdk_json_decode_object failed");
     158           0 :                 goto cleanup;
     159             :         }
     160             : 
     161           0 :         bdev_null_delete(req.name, rpc_bdev_null_delete_cb, request);
     162             : 
     163           0 :         free_rpc_delete_null(&req);
     164             : 
     165           0 :         return;
     166             : 
     167           0 : cleanup:
     168           0 :         free_rpc_delete_null(&req);
     169             : }
     170           0 : SPDK_RPC_REGISTER("bdev_null_delete", rpc_bdev_null_delete, SPDK_RPC_RUNTIME)
     171             : 
     172             : struct rpc_bdev_null_resize {
     173             :         char *name;
     174             :         uint64_t new_size;
     175             : };
     176             : 
     177             : static const struct spdk_json_object_decoder rpc_bdev_null_resize_decoders[] = {
     178             :         {"name", offsetof(struct rpc_bdev_null_resize, name), spdk_json_decode_string},
     179             :         {"new_size", offsetof(struct rpc_bdev_null_resize, new_size), spdk_json_decode_uint64}
     180             : };
     181             : 
     182             : static void
     183           0 : free_rpc_bdev_null_resize(struct rpc_bdev_null_resize *req)
     184             : {
     185           0 :         free(req->name);
     186           0 : }
     187             : 
     188             : static void
     189           0 : spdk_rpc_bdev_null_resize(struct spdk_jsonrpc_request *request,
     190             :                           const struct spdk_json_val *params)
     191             : {
     192           0 :         struct rpc_bdev_null_resize req = {};
     193             :         int rc;
     194             : 
     195           0 :         if (spdk_json_decode_object(params, rpc_bdev_null_resize_decoders,
     196             :                                     SPDK_COUNTOF(rpc_bdev_null_resize_decoders),
     197             :                                     &req)) {
     198           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
     199             :                                                  "spdk_json_decode_object failed");
     200           0 :                 goto cleanup;
     201             :         }
     202             : 
     203           0 :         rc = bdev_null_resize(req.name, req.new_size);
     204           0 :         if (rc) {
     205           0 :                 spdk_jsonrpc_send_error_response(request, rc, spdk_strerror(-rc));
     206           0 :                 goto cleanup;
     207             :         }
     208             : 
     209           0 :         spdk_jsonrpc_send_bool_response(request, true);
     210           0 : cleanup:
     211           0 :         free_rpc_bdev_null_resize(&req);
     212           0 : }
     213           0 : SPDK_RPC_REGISTER("bdev_null_resize", spdk_rpc_bdev_null_resize, SPDK_RPC_RUNTIME)

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