Line data Source code
1 : /* SPDX-License-Identifier: BSD-3-Clause
2 : * Copyright (C) 2016 Intel Corporation. All rights reserved.
3 : * Copyright (c) 2018-2019 Mellanox Technologies LTD. All rights reserved.
4 : * Copyright (c) 2021 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
5 : */
6 :
7 : #include "event_nvmf.h"
8 :
9 : #include "spdk/rpc.h"
10 : #include "spdk/util.h"
11 : #include "spdk/cpuset.h"
12 :
13 : static const struct spdk_json_object_decoder nvmf_rpc_subsystem_tgt_opts_decoder[] = {
14 : {"max_subsystems", 0, spdk_json_decode_uint32, true}
15 : };
16 :
17 : static void
18 0 : rpc_nvmf_set_max_subsystems(struct spdk_jsonrpc_request *request,
19 : const struct spdk_json_val *params)
20 : {
21 0 : uint32_t max_subsystems = 0;
22 :
23 0 : if (g_spdk_nvmf_tgt_max_subsystems != 0) {
24 0 : SPDK_ERRLOG("this RPC must not be called more than once.\n");
25 0 : spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
26 : "Must not call more than once");
27 0 : return;
28 : }
29 :
30 0 : if (params != NULL) {
31 0 : if (spdk_json_decode_object(params, nvmf_rpc_subsystem_tgt_opts_decoder,
32 : SPDK_COUNTOF(nvmf_rpc_subsystem_tgt_opts_decoder), &max_subsystems)) {
33 0 : SPDK_ERRLOG("spdk_json_decode_object() failed\n");
34 0 : spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
35 : "Invalid parameters");
36 0 : return;
37 : }
38 : }
39 :
40 0 : g_spdk_nvmf_tgt_max_subsystems = max_subsystems;
41 :
42 0 : spdk_jsonrpc_send_bool_response(request, true);
43 : }
44 0 : SPDK_RPC_REGISTER("nvmf_set_max_subsystems", rpc_nvmf_set_max_subsystems,
45 : SPDK_RPC_STARTUP)
46 :
47 : static const struct spdk_json_object_decoder admin_passthru_decoder[] = {
48 : {"identify_ctrlr", offsetof(struct spdk_nvmf_admin_passthru_conf, identify_ctrlr), spdk_json_decode_bool}
49 : };
50 :
51 : static int
52 0 : decode_admin_passthru(const struct spdk_json_val *val, void *out)
53 : {
54 0 : struct spdk_nvmf_admin_passthru_conf *req = (struct spdk_nvmf_admin_passthru_conf *)out;
55 :
56 0 : if (spdk_json_decode_object(val, admin_passthru_decoder,
57 : SPDK_COUNTOF(admin_passthru_decoder),
58 : req)) {
59 0 : SPDK_ERRLOG("spdk_json_decode_object failed\n");
60 0 : return -1;
61 : }
62 :
63 0 : return 0;
64 : }
65 :
66 : static int
67 0 : decode_discovery_filter(const struct spdk_json_val *val, void *out)
68 : {
69 0 : enum spdk_nvmf_tgt_discovery_filter *_filter = (enum spdk_nvmf_tgt_discovery_filter *)out;
70 0 : enum spdk_nvmf_tgt_discovery_filter filter = SPDK_NVMF_TGT_DISCOVERY_MATCH_ANY;
71 0 : char *tokens = spdk_json_strdup(val);
72 : char *tok;
73 0 : int rc = -EINVAL;
74 0 : bool all_specified = false;
75 :
76 0 : if (!tokens) {
77 0 : return -ENOMEM;
78 : }
79 :
80 0 : tok = strtok(tokens, ",");
81 0 : while (tok) {
82 0 : if (strncmp(tok, "match_any", 9) == 0) {
83 0 : if (filter != SPDK_NVMF_TGT_DISCOVERY_MATCH_ANY) {
84 0 : goto out;
85 : }
86 0 : filter = SPDK_NVMF_TGT_DISCOVERY_MATCH_ANY;
87 0 : all_specified = true;
88 : } else {
89 0 : if (all_specified) {
90 0 : goto out;
91 : }
92 0 : if (strncmp(tok, "transport", 9) == 0) {
93 0 : filter |= SPDK_NVMF_TGT_DISCOVERY_MATCH_TRANSPORT_TYPE;
94 0 : } else if (strncmp(tok, "address", 7) == 0) {
95 0 : filter |= SPDK_NVMF_TGT_DISCOVERY_MATCH_TRANSPORT_ADDRESS;
96 0 : } else if (strncmp(tok, "svcid", 5) == 0) {
97 0 : filter |= SPDK_NVMF_TGT_DISCOVERY_MATCH_TRANSPORT_SVCID;
98 : } else {
99 0 : SPDK_ERRLOG("Invalid value %s\n", tok);
100 0 : goto out;
101 : }
102 : }
103 :
104 0 : tok = strtok(NULL, ",");
105 : }
106 :
107 0 : rc = 0;
108 0 : *_filter = filter;
109 :
110 0 : out:
111 0 : free(tokens);
112 :
113 0 : return rc;
114 : }
115 :
116 : static int
117 0 : nvmf_is_subset_of_env_core_mask(const struct spdk_cpuset *set)
118 : {
119 0 : uint32_t i, tmp_counter = 0;
120 :
121 0 : SPDK_ENV_FOREACH_CORE(i) {
122 0 : if (spdk_cpuset_get_cpu(set, i)) {
123 0 : ++tmp_counter;
124 : }
125 : }
126 0 : return spdk_cpuset_count(set) - tmp_counter;
127 : }
128 :
129 : static int
130 0 : nvmf_decode_poll_groups_mask(const struct spdk_json_val *val, void *out)
131 : {
132 0 : char *mask = spdk_json_strdup(val);
133 0 : int ret = -1;
134 :
135 0 : if (mask == NULL) {
136 0 : return -1;
137 : }
138 :
139 0 : if (!(g_poll_groups_mask = spdk_cpuset_alloc())) {
140 0 : SPDK_ERRLOG("Unable to allocate a poll groups mask object in nvmf_decode_poll_groups_mask.\n");
141 0 : free(mask);
142 0 : return -1;
143 : }
144 :
145 0 : ret = spdk_cpuset_parse(g_poll_groups_mask, mask);
146 0 : free(mask);
147 0 : if (ret == 0) {
148 0 : if (nvmf_is_subset_of_env_core_mask(g_poll_groups_mask) == 0) {
149 0 : return 0;
150 : } else {
151 0 : SPDK_ERRLOG("Poll groups cpumask 0x%s is out of range\n", spdk_cpuset_fmt(g_poll_groups_mask));
152 : }
153 : } else {
154 0 : SPDK_ERRLOG("Invalid cpumask\n");
155 : }
156 :
157 0 : spdk_cpuset_free(g_poll_groups_mask);
158 0 : g_poll_groups_mask = NULL;
159 0 : return -1;
160 : }
161 :
162 : static const struct spdk_json_object_decoder nvmf_rpc_subsystem_tgt_conf_decoder[] = {
163 : {"admin_cmd_passthru", offsetof(struct spdk_nvmf_tgt_conf, admin_passthru), decode_admin_passthru, true},
164 : {"poll_groups_mask", 0, nvmf_decode_poll_groups_mask, true},
165 : {"discovery_filter", offsetof(struct spdk_nvmf_tgt_conf, discovery_filter), decode_discovery_filter, true}
166 : };
167 :
168 : static void
169 0 : rpc_nvmf_set_config(struct spdk_jsonrpc_request *request,
170 : const struct spdk_json_val *params)
171 : {
172 0 : struct spdk_nvmf_tgt_conf conf;
173 :
174 0 : memcpy(&conf, &g_spdk_nvmf_tgt_conf, sizeof(conf));
175 :
176 0 : if (params != NULL) {
177 0 : if (spdk_json_decode_object(params, nvmf_rpc_subsystem_tgt_conf_decoder,
178 : SPDK_COUNTOF(nvmf_rpc_subsystem_tgt_conf_decoder), &conf)) {
179 0 : SPDK_ERRLOG("spdk_json_decode_object() failed\n");
180 0 : spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
181 : "Invalid parameters");
182 0 : return;
183 : }
184 : }
185 :
186 0 : memcpy(&g_spdk_nvmf_tgt_conf, &conf, sizeof(conf));
187 :
188 0 : spdk_jsonrpc_send_bool_response(request, true);
189 : }
190 0 : SPDK_RPC_REGISTER("nvmf_set_config", rpc_nvmf_set_config, SPDK_RPC_STARTUP)
191 :
192 : struct nvmf_rpc_set_crdt {
193 : uint16_t crdt1;
194 : uint16_t crdt2;
195 : uint16_t crdt3;
196 : };
197 :
198 : static const struct spdk_json_object_decoder rpc_set_crdt_opts_decoders[] = {
199 : {"crdt1", offsetof(struct nvmf_rpc_set_crdt, crdt1), spdk_json_decode_uint16, true},
200 : {"crdt2", offsetof(struct nvmf_rpc_set_crdt, crdt2), spdk_json_decode_uint16, true},
201 : {"crdt3", offsetof(struct nvmf_rpc_set_crdt, crdt3), spdk_json_decode_uint16, true},
202 : };
203 :
204 : static void
205 0 : rpc_nvmf_set_crdt(struct spdk_jsonrpc_request *request,
206 : const struct spdk_json_val *params)
207 : {
208 0 : struct nvmf_rpc_set_crdt rpc_set_crdt;
209 :
210 0 : rpc_set_crdt.crdt1 = 0;
211 0 : rpc_set_crdt.crdt2 = 0;
212 0 : rpc_set_crdt.crdt3 = 0;
213 :
214 0 : if (params != NULL) {
215 0 : if (spdk_json_decode_object(params, rpc_set_crdt_opts_decoders,
216 : SPDK_COUNTOF(rpc_set_crdt_opts_decoders), &rpc_set_crdt)) {
217 0 : SPDK_ERRLOG("spdk_json_decode_object() failed\n");
218 0 : spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
219 : "Invalid parameters");
220 0 : return;
221 : }
222 : }
223 :
224 0 : g_spdk_nvmf_tgt_crdt[0] = rpc_set_crdt.crdt1;
225 0 : g_spdk_nvmf_tgt_crdt[1] = rpc_set_crdt.crdt2;
226 0 : g_spdk_nvmf_tgt_crdt[2] = rpc_set_crdt.crdt3;
227 :
228 0 : spdk_jsonrpc_send_bool_response(request, true);
229 : }
230 0 : SPDK_RPC_REGISTER("nvmf_set_crdt", rpc_nvmf_set_crdt, SPDK_RPC_STARTUP)
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