LCOV - code coverage report
Current view: top level - module/bdev/compress - vbdev_compress_rpc.c (source / functions) Hit Total Coverage
Test: ut_cov_unit.info Lines: 0 83 0.0 %
Date: 2024-11-17 12:24:17 Functions: 0 10 0.0 %

          Line data    Source code
       1             : /*   SPDX-License-Identifier: BSD-3-Clause
       2             :  *   Copyright (C) 2018 Intel Corporation.
       3             :  *   Copyright (c) 2023 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
       4             :  *   All rights reserved.
       5             :  */
       6             : 
       7             : #include "vbdev_compress.h"
       8             : #include "spdk/rpc.h"
       9             : #include "spdk/util.h"
      10             : #include "spdk/string.h"
      11             : #include "spdk/log.h"
      12             : 
      13             : struct rpc_bdev_compress_get_orphans {
      14             :         char *name;
      15             : };
      16             : 
      17             : static void
      18           0 : free_rpc_bdev_compress_get_orphans(struct rpc_bdev_compress_get_orphans *r)
      19             : {
      20           0 :         free(r->name);
      21           0 : }
      22             : 
      23             : static const struct spdk_json_object_decoder rpc_bdev_compress_get_orphans_decoders[] = {
      24             :         {"name", offsetof(struct rpc_bdev_compress_get_orphans, name), spdk_json_decode_string, true},
      25             : };
      26             : 
      27             : static void
      28           0 : rpc_bdev_compress_get_orphans(struct spdk_jsonrpc_request *request,
      29             :                               const struct spdk_json_val *params)
      30             : {
      31           0 :         struct rpc_bdev_compress_get_orphans req = {};
      32           0 :         struct spdk_json_write_ctx *w;
      33           0 :         struct vbdev_compress *comp_bdev;
      34           0 :         bool found = false;
      35             : 
      36             : 
      37           0 :         if (params && spdk_json_decode_object(params, rpc_bdev_compress_get_orphans_decoders,
      38             :                                               SPDK_COUNTOF(rpc_bdev_compress_get_orphans_decoders),
      39             :                                               &req)) {
      40           0 :                 SPDK_ERRLOG("spdk_json_decode_object failed\n");
      41           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
      42             :                                                  "spdk_json_decode_object failed");
      43           0 :                 free_rpc_bdev_compress_get_orphans(&req);
      44           0 :                 return;
      45             :         }
      46             : 
      47           0 :         if (req.name) {
      48           0 :                 if (compress_has_orphan(req.name) == false) {
      49           0 :                         spdk_jsonrpc_send_error_response(request, -ENODEV, spdk_strerror(ENODEV));
      50           0 :                         free_rpc_bdev_compress_get_orphans(&req);
      51           0 :                         return;
      52             :                 }
      53           0 :                 found = true;
      54           0 :         }
      55             : 
      56           0 :         w = spdk_jsonrpc_begin_result(request);
      57           0 :         spdk_json_write_array_begin(w);
      58           0 :         if (found) {
      59           0 :                 spdk_json_write_string(w, req.name);
      60           0 :         } else {
      61           0 :                 for (comp_bdev = compress_bdev_first(); comp_bdev != NULL;
      62           0 :                      comp_bdev = compress_bdev_next(comp_bdev)) {
      63           0 :                         if (compress_has_orphan(compress_get_name(comp_bdev))) {
      64           0 :                                 spdk_json_write_string(w, compress_get_name(comp_bdev));
      65           0 :                         }
      66           0 :                 }
      67             :         }
      68           0 :         spdk_json_write_array_end(w);
      69           0 :         spdk_jsonrpc_end_result(request, w);
      70           0 :         free_rpc_bdev_compress_get_orphans(&req);
      71           0 : }
      72           0 : SPDK_RPC_REGISTER("bdev_compress_get_orphans", rpc_bdev_compress_get_orphans, SPDK_RPC_RUNTIME)
      73             : 
      74             : /* Structure to hold the parameters for this RPC method. */
      75             : struct rpc_construct_compress {
      76             :         char *base_bdev_name;
      77             :         char *pm_path;
      78             :         uint32_t lb_size;
      79             : };
      80             : 
      81             : /* Free the allocated memory resource after the RPC handling. */
      82             : static void
      83           0 : free_rpc_construct_compress(struct rpc_construct_compress *r)
      84             : {
      85           0 :         free(r->base_bdev_name);
      86           0 :         free(r->pm_path);
      87           0 : }
      88             : 
      89             : /* Structure to decode the input parameters for this RPC method. */
      90             : static const struct spdk_json_object_decoder rpc_construct_compress_decoders[] = {
      91             :         {"base_bdev_name", offsetof(struct rpc_construct_compress, base_bdev_name), spdk_json_decode_string},
      92             :         {"pm_path", offsetof(struct rpc_construct_compress, pm_path), spdk_json_decode_string},
      93             :         {"lb_size", offsetof(struct rpc_construct_compress, lb_size), spdk_json_decode_uint32, true},
      94             : };
      95             : 
      96             : /* Decode the parameters for this RPC method and properly construct the compress
      97             :  * device. Error status returned in the failed cases.
      98             :  */
      99             : static void
     100           0 : rpc_bdev_compress_create(struct spdk_jsonrpc_request *request,
     101             :                          const struct spdk_json_val *params)
     102             : {
     103           0 :         struct rpc_construct_compress req = {NULL};
     104           0 :         struct spdk_json_write_ctx *w;
     105           0 :         char *name;
     106           0 :         int rc;
     107             : 
     108           0 :         if (spdk_json_decode_object(params, rpc_construct_compress_decoders,
     109             :                                     SPDK_COUNTOF(rpc_construct_compress_decoders),
     110             :                                     &req)) {
     111           0 :                 SPDK_DEBUGLOG(vbdev_compress, "spdk_json_decode_object failed\n");
     112           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_PARSE_ERROR,
     113             :                                                  "spdk_json_decode_object failed");
     114           0 :                 goto cleanup;
     115             :         }
     116             : 
     117           0 :         rc = create_compress_bdev(req.base_bdev_name, req.pm_path, req.lb_size);
     118           0 :         if (rc != 0) {
     119           0 :                 if (rc == -EBUSY) {
     120           0 :                         spdk_jsonrpc_send_error_response(request, rc, "Base bdev already in use for compression.");
     121           0 :                 } else {
     122           0 :                         spdk_jsonrpc_send_error_response(request, rc, spdk_strerror(-rc));
     123             :                 }
     124           0 :                 goto cleanup;
     125             :         }
     126             : 
     127           0 :         w = spdk_jsonrpc_begin_result(request);
     128           0 :         name = spdk_sprintf_alloc("COMP_%s", req.base_bdev_name);
     129           0 :         spdk_json_write_string(w, name);
     130           0 :         spdk_jsonrpc_end_result(request, w);
     131           0 :         free(name);
     132             : 
     133             : cleanup:
     134           0 :         free_rpc_construct_compress(&req);
     135           0 : }
     136           0 : SPDK_RPC_REGISTER("bdev_compress_create", rpc_bdev_compress_create, SPDK_RPC_RUNTIME)
     137             : 
     138             : struct rpc_delete_compress {
     139             :         char *name;
     140             : };
     141             : 
     142             : static void
     143           0 : free_rpc_delete_compress(struct rpc_delete_compress *req)
     144             : {
     145           0 :         free(req->name);
     146           0 : }
     147             : 
     148             : static const struct spdk_json_object_decoder rpc_delete_compress_decoders[] = {
     149             :         {"name", offsetof(struct rpc_delete_compress, name), spdk_json_decode_string},
     150             : };
     151             : 
     152             : static void
     153           0 : _rpc_bdev_compress_delete_cb(void *cb_arg, int bdeverrno)
     154             : {
     155           0 :         struct spdk_jsonrpc_request *request = cb_arg;
     156             : 
     157           0 :         if (bdeverrno == 0) {
     158           0 :                 spdk_jsonrpc_send_bool_response(request, true);
     159           0 :         } else {
     160           0 :                 spdk_jsonrpc_send_error_response(request, bdeverrno, spdk_strerror(-bdeverrno));
     161             :         }
     162           0 : }
     163             : 
     164             : static void
     165           0 : rpc_bdev_compress_delete(struct spdk_jsonrpc_request *request,
     166             :                          const struct spdk_json_val *params)
     167             : {
     168           0 :         struct rpc_delete_compress req = {NULL};
     169             : 
     170           0 :         if (spdk_json_decode_object(params, rpc_delete_compress_decoders,
     171             :                                     SPDK_COUNTOF(rpc_delete_compress_decoders),
     172             :                                     &req)) {
     173           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
     174             :                                                  "spdk_json_decode_object failed");
     175           0 :         } else {
     176           0 :                 bdev_compress_delete(req.name, _rpc_bdev_compress_delete_cb, request);
     177             :         }
     178             : 
     179           0 :         free_rpc_delete_compress(&req);
     180           0 : }
     181           0 : SPDK_RPC_REGISTER("bdev_compress_delete", rpc_bdev_compress_delete, SPDK_RPC_RUNTIME)

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