ceph/src/spdk/lib/sock/sock_rpc.c

   1 /*-
   2  *   BSD LICENSE
   3  *
   4  *   Copyright (c) 2020 Mellanox Technologies LTD. All rights reserved.
   5  *
   6  *   Redistribution and use in source and binary forms, with or without
   7  *   modification, are permitted provided that the following conditions
   8  *   are met:
   9  *
  10  *     * Redistributions of source code must retain the above copyright
  11  *       notice, this list of conditions and the following disclaimer.
  12  *     * Redistributions in binary form must reproduce the above copyright
  13  *       notice, this list of conditions and the following disclaimer in
  14  *       the documentation and/or other materials provided with the
  15  *       distribution.
  16  *     * Neither the name of Intel Corporation nor the names of its
  17  *       contributors may be used to endorse or promote products derived
  18  *       from this software without specific prior written permission.
  19  *
  20  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  21  *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  22  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  23  *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  24  *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  25  *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  26  *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  27  *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  28  *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  29  *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  30  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  31  */
  32
  33 #include "spdk/sock.h"
  34
  35 #include "spdk/rpc.h"
  36 #include "spdk/util.h"
  37 #include "spdk/string.h"
  38
  39 #include "spdk_internal/log.h"
  40
  41
  42 static const struct spdk_json_object_decoder rpc_sock_impl_get_opts_decoders[] = {
  43         { "impl_name", 0, spdk_json_decode_string, false },
  44 };
  45
  46 static void
  47 rpc_sock_impl_get_options(struct spdk_jsonrpc_request *request,
  48                           const struct spdk_json_val *params)
  49 {
  50         char *impl_name = NULL;
  51         struct spdk_sock_impl_opts sock_opts = {};
  52         struct spdk_json_write_ctx *w;
  53         size_t len;
  54         int rc;
  55
  56         if (spdk_json_decode_object(params, rpc_sock_impl_get_opts_decoders,
  57                                     SPDK_COUNTOF(rpc_sock_impl_get_opts_decoders), &impl_name)) {
  58                 SPDK_ERRLOG("spdk_json_decode_object() failed\n");
  59                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
  60                                                  "Invalid parameters");
  61                 return;
  62         }
  63
  64         len = sizeof(sock_opts);
  65         rc = spdk_sock_impl_get_opts(impl_name, &sock_opts, &len);
  66         if (rc) {
  67                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
  68                                                  "Invalid parameters");
  69                 return;
  70         }
  71
  72         w = spdk_jsonrpc_begin_result(request);
  73         spdk_json_write_object_begin(w);
  74         spdk_json_write_named_uint32(w, "recv_buf_size", sock_opts.recv_buf_size);
  75         spdk_json_write_named_uint32(w, "send_buf_size", sock_opts.send_buf_size);
  76         spdk_json_write_named_bool(w, "enable_recv_pipe", sock_opts.enable_recv_pipe);
  77         spdk_json_write_named_bool(w, "enable_zerocopy_send", sock_opts.enable_zerocopy_send);
  78         spdk_json_write_object_end(w);
  79         spdk_jsonrpc_end_result(request, w);
  80         free(impl_name);
  81 }
  82 SPDK_RPC_REGISTER("sock_impl_get_options", rpc_sock_impl_get_options,
  83                   SPDK_RPC_STARTUP | SPDK_RPC_RUNTIME)
  84
  85 struct spdk_rpc_sock_impl_set_opts {
  86         char *impl_name;
  87         struct spdk_sock_impl_opts sock_opts;
  88 };
  89
  90 static const struct spdk_json_object_decoder rpc_sock_impl_set_opts_decoders[] = {
  91         {
  92                 "impl_name", offsetof(struct spdk_rpc_sock_impl_set_opts, impl_name),
  93                 spdk_json_decode_string, false
  94         },
  95         {
  96                 "recv_buf_size", offsetof(struct spdk_rpc_sock_impl_set_opts, sock_opts.recv_buf_size),
  97                 spdk_json_decode_uint32, true
  98         },
  99         {
 100                 "send_buf_size", offsetof(struct spdk_rpc_sock_impl_set_opts, sock_opts.send_buf_size),
 101                 spdk_json_decode_uint32, true
 102         },
 103         {
 104                 "enable_recv_pipe", offsetof(struct spdk_rpc_sock_impl_set_opts, sock_opts.enable_recv_pipe),
 105                 spdk_json_decode_bool, true
 106         },
 107         {
 108                 "enable_zerocopy_send", offsetof(struct spdk_rpc_sock_impl_set_opts, sock_opts.enable_zerocopy_send),
 109                 spdk_json_decode_bool, true
 110         },
 111 };
 112
 113 static void
 114 rpc_sock_impl_set_options(struct spdk_jsonrpc_request *request,
 115                           const struct spdk_json_val *params)
 116 {
 117         struct spdk_rpc_sock_impl_set_opts opts = {};
 118         struct spdk_json_write_ctx *w;
 119         size_t len;
 120         int rc;
 121
 122         /* Get type */
 123         if (spdk_json_decode_object(params, rpc_sock_impl_set_opts_decoders,
 124                                     SPDK_COUNTOF(rpc_sock_impl_set_opts_decoders), &opts)) {
 125                 SPDK_ERRLOG("spdk_json_decode_object() failed\n");
 126                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
 127                                                  "Invalid parameters");
 128                 return;
 129         }
 130
 131         /* Retrieve default opts for requested socket implementation */
 132         len = sizeof(opts.sock_opts);
 133         rc = spdk_sock_impl_get_opts(opts.impl_name, &opts.sock_opts, &len);
 134         if (rc) {
 135                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
 136                                                  "Invalid parameters");
 137                 return;
 138         }
 139
 140         /* Decode opts */
 141         if (spdk_json_decode_object(params, rpc_sock_impl_set_opts_decoders,
 142                                     SPDK_COUNTOF(rpc_sock_impl_set_opts_decoders), &opts)) {
 143                 SPDK_ERRLOG("spdk_json_decode_object() failed\n");
 144                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
 145                                                  "Invalid parameters");
 146                 return;
 147         }
 148
 149         rc = spdk_sock_impl_set_opts(opts.impl_name, &opts.sock_opts, sizeof(opts.sock_opts));
 150         if (rc != 0) {
 151                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
 152                                                  "Invalid parameters");
 153                 return;
 154         }
 155
 156         w = spdk_jsonrpc_begin_result(request);
 157         spdk_json_write_bool(w, true);
 158         spdk_jsonrpc_end_result(request, w);
 159         free(opts.impl_name);
 160 }
 161 SPDK_RPC_REGISTER("sock_impl_set_options", rpc_sock_impl_set_options, SPDK_RPC_STARTUP)