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_conf.opts.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_conf.opts.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 : uint32_t *_filter = out;
70 0 : uint32_t 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 int
163 0 : decode_digest(const struct spdk_json_val *val, void *out)
164 : {
165 0 : uint32_t *flags = out;
166 0 : char *digest = NULL;
167 : int rc;
168 :
169 0 : rc = spdk_json_decode_string(val, &digest);
170 0 : if (rc != 0) {
171 0 : return rc;
172 : }
173 :
174 0 : rc = spdk_nvme_dhchap_get_digest_id(digest);
175 0 : if (rc >= 0) {
176 0 : *flags |= SPDK_BIT(rc);
177 0 : rc = 0;
178 : }
179 0 : free(digest);
180 :
181 0 : return rc;
182 : }
183 :
184 : static int
185 0 : decode_digest_array(const struct spdk_json_val *val, void *out)
186 : {
187 0 : uint32_t *flags = out;
188 0 : size_t count;
189 :
190 0 : *flags = 0;
191 :
192 0 : return spdk_json_decode_array(val, decode_digest, out, 32, &count, 0);
193 : }
194 :
195 : static int
196 0 : decode_dhgroup(const struct spdk_json_val *val, void *out)
197 : {
198 0 : uint32_t *flags = out;
199 0 : char *dhgroup = NULL;
200 : int rc;
201 :
202 0 : rc = spdk_json_decode_string(val, &dhgroup);
203 0 : if (rc != 0) {
204 0 : return rc;
205 : }
206 :
207 0 : rc = spdk_nvme_dhchap_get_dhgroup_id(dhgroup);
208 0 : if (rc >= 0) {
209 0 : *flags |= SPDK_BIT(rc);
210 0 : rc = 0;
211 : }
212 0 : free(dhgroup);
213 :
214 0 : return rc;
215 : }
216 :
217 : static int
218 0 : decode_dhgroup_array(const struct spdk_json_val *val, void *out)
219 : {
220 0 : uint32_t *flags = out;
221 0 : size_t count;
222 :
223 0 : *flags = 0;
224 :
225 0 : return spdk_json_decode_array(val, decode_dhgroup, out, 32, &count, 0);
226 : }
227 :
228 : static const struct spdk_json_object_decoder nvmf_rpc_subsystem_tgt_conf_decoder[] = {
229 : {"admin_cmd_passthru", offsetof(struct spdk_nvmf_tgt_conf, admin_passthru), decode_admin_passthru, true},
230 : {"poll_groups_mask", 0, nvmf_decode_poll_groups_mask, true},
231 : {"discovery_filter", offsetof(struct spdk_nvmf_tgt_conf, opts.discovery_filter), decode_discovery_filter, true},
232 : {"dhchap_digests", offsetof(struct spdk_nvmf_tgt_conf, opts.dhchap_digests), decode_digest_array, true},
233 : {"dhchap_dhgroups", offsetof(struct spdk_nvmf_tgt_conf, opts.dhchap_dhgroups), decode_dhgroup_array, true},
234 : };
235 :
236 : static void
237 0 : rpc_nvmf_set_config(struct spdk_jsonrpc_request *request,
238 : const struct spdk_json_val *params)
239 : {
240 0 : struct spdk_nvmf_tgt_conf conf;
241 :
242 0 : memcpy(&conf, &g_spdk_nvmf_tgt_conf, sizeof(conf));
243 :
244 0 : if (params != NULL) {
245 0 : if (spdk_json_decode_object(params, nvmf_rpc_subsystem_tgt_conf_decoder,
246 : SPDK_COUNTOF(nvmf_rpc_subsystem_tgt_conf_decoder), &conf)) {
247 0 : SPDK_ERRLOG("spdk_json_decode_object() failed\n");
248 0 : spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
249 : "Invalid parameters");
250 0 : return;
251 : }
252 : }
253 :
254 0 : memcpy(&g_spdk_nvmf_tgt_conf, &conf, sizeof(conf));
255 :
256 0 : spdk_jsonrpc_send_bool_response(request, true);
257 : }
258 0 : SPDK_RPC_REGISTER("nvmf_set_config", rpc_nvmf_set_config, SPDK_RPC_STARTUP)
259 :
260 : struct nvmf_rpc_set_crdt {
261 : uint16_t crdt1;
262 : uint16_t crdt2;
263 : uint16_t crdt3;
264 : };
265 :
266 : static const struct spdk_json_object_decoder rpc_set_crdt_opts_decoders[] = {
267 : {"crdt1", offsetof(struct nvmf_rpc_set_crdt, crdt1), spdk_json_decode_uint16, true},
268 : {"crdt2", offsetof(struct nvmf_rpc_set_crdt, crdt2), spdk_json_decode_uint16, true},
269 : {"crdt3", offsetof(struct nvmf_rpc_set_crdt, crdt3), spdk_json_decode_uint16, true},
270 : };
271 :
272 : static void
273 0 : rpc_nvmf_set_crdt(struct spdk_jsonrpc_request *request,
274 : const struct spdk_json_val *params)
275 : {
276 0 : struct nvmf_rpc_set_crdt rpc_set_crdt;
277 :
278 0 : rpc_set_crdt.crdt1 = 0;
279 0 : rpc_set_crdt.crdt2 = 0;
280 0 : rpc_set_crdt.crdt3 = 0;
281 :
282 0 : if (params != NULL) {
283 0 : if (spdk_json_decode_object(params, rpc_set_crdt_opts_decoders,
284 : SPDK_COUNTOF(rpc_set_crdt_opts_decoders), &rpc_set_crdt)) {
285 0 : SPDK_ERRLOG("spdk_json_decode_object() failed\n");
286 0 : spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
287 : "Invalid parameters");
288 0 : return;
289 : }
290 : }
291 :
292 0 : g_spdk_nvmf_tgt_conf.opts.crdt[0] = rpc_set_crdt.crdt1;
293 0 : g_spdk_nvmf_tgt_conf.opts.crdt[1] = rpc_set_crdt.crdt2;
294 0 : g_spdk_nvmf_tgt_conf.opts.crdt[2] = rpc_set_crdt.crdt3;
295 :
296 0 : spdk_jsonrpc_send_bool_response(request, true);
297 : }
298 0 : SPDK_RPC_REGISTER("nvmf_set_crdt", rpc_nvmf_set_crdt, SPDK_RPC_STARTUP)
|