LCOV - code coverage report
Current view: top level - module/bdev/delay - vbdev_delay_rpc.c (source / functions) Hit Total Coverage
Test: ut_cov_unit.info Lines: 0 75 0.0 %
Date: 2024-07-15 18:58:26 Functions: 0 10 0.0 %

          Line data    Source code
       1             : /*   SPDX-License-Identifier: BSD-3-Clause
       2             :  *   Copyright (C) 2019 Intel Corporation.
       3             :  *   All rights reserved.
       4             :  */
       5             : 
       6             : #include "vbdev_delay.h"
       7             : #include "spdk/rpc.h"
       8             : #include "spdk/util.h"
       9             : #include "spdk/string.h"
      10             : #include "spdk/log.h"
      11             : #include "spdk_internal/assert.h"
      12             : 
      13             : struct rpc_update_latency {
      14             :         char *delay_bdev_name;
      15             :         char *latency_type;
      16             :         uint64_t latency_us;
      17             : };
      18             : 
      19             : static const struct spdk_json_object_decoder rpc_update_latency_decoders[] = {
      20             :         {"delay_bdev_name", offsetof(struct rpc_update_latency, delay_bdev_name), spdk_json_decode_string},
      21             :         {"latency_type", offsetof(struct rpc_update_latency, latency_type), spdk_json_decode_string},
      22             :         {"latency_us", offsetof(struct rpc_update_latency, latency_us), spdk_json_decode_uint64}
      23             : };
      24             : 
      25             : static void
      26           0 : free_rpc_update_latency(struct rpc_update_latency *req)
      27             : {
      28           0 :         free(req->delay_bdev_name);
      29           0 :         free(req->latency_type);
      30           0 : }
      31             : 
      32             : static void
      33           0 : rpc_bdev_delay_update_latency(struct spdk_jsonrpc_request *request,
      34             :                               const struct spdk_json_val *params)
      35             : {
      36           0 :         struct rpc_update_latency req = {NULL};
      37             :         enum delay_io_type latency_type;
      38           0 :         int rc = 0;
      39             : 
      40           0 :         if (spdk_json_decode_object(params, rpc_update_latency_decoders,
      41             :                                     SPDK_COUNTOF(rpc_update_latency_decoders),
      42             :                                     &req)) {
      43           0 :                 SPDK_DEBUGLOG(vbdev_delay, "spdk_json_decode_object failed\n");
      44           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
      45             :                                                  "spdk_json_decode_object failed");
      46           0 :                 goto cleanup;
      47             :         }
      48             : 
      49           0 :         if (!strncmp(req.latency_type, "avg_read", 9)) {
      50           0 :                 latency_type = DELAY_AVG_READ;
      51           0 :         } else if (!strncmp(req.latency_type, "p99_read", 9)) {
      52           0 :                 latency_type = DELAY_P99_READ;
      53           0 :         } else if (!strncmp(req.latency_type, "avg_write", 10)) {
      54           0 :                 latency_type = DELAY_AVG_WRITE;
      55           0 :         } else if (!strncmp(req.latency_type, "p99_write", 10)) {
      56           0 :                 latency_type = DELAY_P99_WRITE;
      57             :         } else {
      58           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
      59             :                                                  "Please specify a valid latency type.");
      60           0 :                 goto cleanup;
      61             :         }
      62             : 
      63           0 :         rc = vbdev_delay_update_latency_value(req.delay_bdev_name, req.latency_us, latency_type);
      64             : 
      65           0 :         if (rc == -ENODEV) {
      66           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
      67             :                                                  "The requested bdev does not exist.");
      68           0 :                 goto cleanup;
      69           0 :         } else if (rc == -EINVAL) {
      70           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_REQUEST,
      71             :                                                  "The requested bdev is not a delay bdev.");
      72           0 :                 goto cleanup;
      73           0 :         } else if (rc) {
      74           0 :                 SPDK_UNREACHABLE();
      75             :         }
      76             : 
      77           0 :         spdk_jsonrpc_send_bool_response(request, true);
      78             : 
      79           0 : cleanup:
      80           0 :         free_rpc_update_latency(&req);
      81           0 : }
      82           0 : SPDK_RPC_REGISTER("bdev_delay_update_latency", rpc_bdev_delay_update_latency, SPDK_RPC_RUNTIME)
      83             : 
      84             : struct rpc_construct_delay {
      85             :         char *base_bdev_name;
      86             :         char *name;
      87             :         struct spdk_uuid uuid;
      88             :         uint64_t avg_read_latency;
      89             :         uint64_t p99_read_latency;
      90             :         uint64_t avg_write_latency;
      91             :         uint64_t p99_write_latency;
      92             : };
      93             : 
      94             : static void
      95           0 : free_rpc_construct_delay(struct rpc_construct_delay *r)
      96             : {
      97           0 :         free(r->base_bdev_name);
      98           0 :         free(r->name);
      99           0 : }
     100             : 
     101             : static const struct spdk_json_object_decoder rpc_construct_delay_decoders[] = {
     102             :         {"base_bdev_name", offsetof(struct rpc_construct_delay, base_bdev_name), spdk_json_decode_string},
     103             :         {"name", offsetof(struct rpc_construct_delay, name), spdk_json_decode_string},
     104             :         {"uuid", offsetof(struct rpc_construct_delay, uuid), spdk_json_decode_uuid, true},
     105             :         {"avg_read_latency", offsetof(struct rpc_construct_delay, avg_read_latency), spdk_json_decode_uint64},
     106             :         {"p99_read_latency", offsetof(struct rpc_construct_delay, p99_read_latency), spdk_json_decode_uint64},
     107             :         {"avg_write_latency", offsetof(struct rpc_construct_delay, avg_write_latency), spdk_json_decode_uint64},
     108             :         {"p99_write_latency", offsetof(struct rpc_construct_delay, p99_write_latency), spdk_json_decode_uint64},
     109             : };
     110             : 
     111             : static void
     112           0 : rpc_bdev_delay_create(struct spdk_jsonrpc_request *request,
     113             :                       const struct spdk_json_val *params)
     114             : {
     115           0 :         struct rpc_construct_delay req = {NULL};
     116             :         struct spdk_json_write_ctx *w;
     117             :         int rc;
     118             : 
     119           0 :         if (spdk_json_decode_object(params, rpc_construct_delay_decoders,
     120             :                                     SPDK_COUNTOF(rpc_construct_delay_decoders),
     121             :                                     &req)) {
     122           0 :                 SPDK_DEBUGLOG(vbdev_delay, "spdk_json_decode_object failed\n");
     123           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
     124             :                                                  "spdk_json_decode_object failed");
     125           0 :                 goto cleanup;
     126             :         }
     127             : 
     128           0 :         rc = create_delay_disk(req.base_bdev_name, req.name, &req.uuid, req.avg_read_latency,
     129             :                                req.p99_read_latency,
     130             :                                req.avg_write_latency, req.p99_write_latency);
     131           0 :         if (rc != 0) {
     132           0 :                 spdk_jsonrpc_send_error_response(request, rc, spdk_strerror(-rc));
     133           0 :                 goto cleanup;
     134             :         }
     135             : 
     136           0 :         w = spdk_jsonrpc_begin_result(request);
     137           0 :         spdk_json_write_string(w, req.name);
     138           0 :         spdk_jsonrpc_end_result(request, w);
     139             : 
     140           0 : cleanup:
     141           0 :         free_rpc_construct_delay(&req);
     142           0 : }
     143           0 : SPDK_RPC_REGISTER("bdev_delay_create", rpc_bdev_delay_create, SPDK_RPC_RUNTIME)
     144             : 
     145             : struct rpc_delete_delay {
     146             :         char *name;
     147             : };
     148             : 
     149             : static void
     150           0 : free_rpc_delete_delay(struct rpc_delete_delay *req)
     151             : {
     152           0 :         free(req->name);
     153           0 : }
     154             : 
     155             : static const struct spdk_json_object_decoder rpc_delete_delay_decoders[] = {
     156             :         {"name", offsetof(struct rpc_delete_delay, name), spdk_json_decode_string},
     157             : };
     158             : 
     159             : static void
     160           0 : rpc_bdev_delay_delete_cb(void *cb_arg, int bdeverrno)
     161             : {
     162           0 :         struct spdk_jsonrpc_request *request = cb_arg;
     163             : 
     164           0 :         if (bdeverrno == 0) {
     165           0 :                 spdk_jsonrpc_send_bool_response(request, true);
     166             :         } else {
     167           0 :                 spdk_jsonrpc_send_error_response(request, bdeverrno, spdk_strerror(-bdeverrno));
     168             :         }
     169           0 : }
     170             : 
     171             : static void
     172           0 : rpc_bdev_delay_delete(struct spdk_jsonrpc_request *request,
     173             :                       const struct spdk_json_val *params)
     174             : {
     175           0 :         struct rpc_delete_delay req = {NULL};
     176             : 
     177           0 :         if (spdk_json_decode_object(params, rpc_delete_delay_decoders,
     178             :                                     SPDK_COUNTOF(rpc_delete_delay_decoders),
     179             :                                     &req)) {
     180           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
     181             :                                                  "spdk_json_decode_object failed");
     182           0 :                 goto cleanup;
     183             :         }
     184             : 
     185           0 :         delete_delay_disk(req.name, rpc_bdev_delay_delete_cb, request);
     186             : 
     187           0 : cleanup:
     188           0 :         free_rpc_delete_delay(&req);
     189           0 : }
     190           0 : SPDK_RPC_REGISTER("bdev_delay_delete", rpc_bdev_delay_delete, SPDK_RPC_RUNTIME)

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