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1 | // SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB | |
2 | /* | |
3 | * dev.c RDMA tool | |
4 | * Authors: Leon Romanovsky <leonro@mellanox.com> | |
5 | */ | |
6 | ||
7 | #include <fcntl.h> | |
8 | #include "rdma.h" | |
9 | ||
10 | static int dev_help(struct rd *rd) | |
11 | { | |
12 | pr_out("Usage: %s dev show [DEV]\n", rd->filename); | |
13 | pr_out(" %s dev set [DEV] name DEVNAME\n", rd->filename); | |
14 | pr_out(" %s dev set [DEV] netns NSNAME\n", rd->filename); | |
15 | pr_out(" %s dev set [DEV] adaptive-moderation [on|off]\n", rd->filename); | |
16 | return 0; | |
17 | } | |
18 | ||
19 | static const char *dev_caps_to_str(uint32_t idx) | |
20 | { | |
21 | #define RDMA_DEV_FLAGS_LOW(x) \ | |
22 | x(RESIZE_MAX_WR, 0) \ | |
23 | x(BAD_PKEY_CNTR, 1) \ | |
24 | x(BAD_QKEY_CNTR, 2) \ | |
25 | x(RAW_MULTI, 3) \ | |
26 | x(AUTO_PATH_MIG, 4) \ | |
27 | x(CHANGE_PHY_PORT, 5) \ | |
28 | x(UD_AV_PORT_ENFORCE_PORT_ENFORCE, 6) \ | |
29 | x(CURR_QP_STATE_MOD, 7) \ | |
30 | x(SHUTDOWN_PORT, 8) \ | |
31 | x(INIT_TYPE, 9) \ | |
32 | x(PORT_ACTIVE_EVENT, 10) \ | |
33 | x(SYS_IMAGE_GUID, 11) \ | |
34 | x(RC_RNR_NAK_GEN, 12) \ | |
35 | x(SRQ_RESIZE, 13) \ | |
36 | x(N_NOTIFY_CQ, 14) \ | |
37 | x(LOCAL_DMA_LKEY, 15) \ | |
38 | x(MEM_WINDOW, 17) \ | |
39 | x(UD_IP_CSUM, 18) \ | |
40 | x(UD_TSO, 19) \ | |
41 | x(XRC, 20) \ | |
42 | x(MEM_MGT_EXTENSIONS, 21) \ | |
43 | x(BLOCK_MULTICAST_LOOPBACK, 22) \ | |
44 | x(MEM_WINDOW_TYPE_2A, 23) \ | |
45 | x(MEM_WINDOW_TYPE_2B, 24) \ | |
46 | x(RC_IP_CSUM, 25) \ | |
47 | x(RAW_IP_CSUM, 26) \ | |
48 | x(CROSS_CHANNEL, 27) \ | |
49 | x(MANAGED_FLOW_STEERING, 29) \ | |
50 | x(SIGNATURE_HANDOVER, 30) \ | |
51 | x(ON_DEMAND_PAGING, 31) | |
52 | ||
53 | #define RDMA_DEV_FLAGS_HIGH(x) \ | |
54 | x(SG_GAPS_REG, 0) \ | |
55 | x(VIRTUAL_FUNCTION, 1) \ | |
56 | x(RAW_SCATTER_FCS, 2) \ | |
57 | x(RDMA_NETDEV_OPA_VNIC, 3) \ | |
58 | x(PCI_WRITE_END_PADDING, 4) | |
59 | ||
60 | /* | |
61 | * Separation below is needed to allow compilation of rdmatool | |
62 | * on 32bits systems. On such systems, C-enum is limited to be | |
63 | * int and can't hold more than 32 bits. | |
64 | */ | |
65 | enum { RDMA_DEV_FLAGS_LOW(RDMA_BITMAP_ENUM) }; | |
66 | enum { RDMA_DEV_FLAGS_HIGH(RDMA_BITMAP_ENUM) }; | |
67 | ||
68 | static const char * const | |
69 | rdma_dev_names_low[] = { RDMA_DEV_FLAGS_LOW(RDMA_BITMAP_NAMES) }; | |
70 | static const char * const | |
71 | rdma_dev_names_high[] = { RDMA_DEV_FLAGS_HIGH(RDMA_BITMAP_NAMES) }; | |
72 | uint32_t high_idx; | |
73 | #undef RDMA_DEV_FLAGS_LOW | |
74 | #undef RDMA_DEV_FLAGS_HIGH | |
75 | ||
76 | if (idx < ARRAY_SIZE(rdma_dev_names_low) && rdma_dev_names_low[idx]) | |
77 | return rdma_dev_names_low[idx]; | |
78 | ||
79 | high_idx = idx - ARRAY_SIZE(rdma_dev_names_low); | |
80 | if (high_idx < ARRAY_SIZE(rdma_dev_names_high) && | |
81 | rdma_dev_names_high[high_idx]) | |
82 | return rdma_dev_names_high[high_idx]; | |
83 | ||
84 | return "UNKNOWN"; | |
85 | } | |
86 | ||
87 | static void dev_print_caps(struct rd *rd, struct nlattr **tb) | |
88 | { | |
89 | uint64_t caps; | |
90 | uint32_t idx; | |
91 | ||
92 | if (!tb[RDMA_NLDEV_ATTR_CAP_FLAGS]) | |
93 | return; | |
94 | ||
95 | caps = mnl_attr_get_u64(tb[RDMA_NLDEV_ATTR_CAP_FLAGS]); | |
96 | ||
97 | if (rd->json_output) { | |
98 | jsonw_name(rd->jw, "caps"); | |
99 | jsonw_start_array(rd->jw); | |
100 | } else { | |
101 | pr_out("\n caps: <"); | |
102 | } | |
103 | for (idx = 0; caps; idx++) { | |
104 | if (caps & 0x1) { | |
105 | if (rd->json_output) { | |
106 | jsonw_string(rd->jw, dev_caps_to_str(idx)); | |
107 | } else { | |
108 | pr_out("%s", dev_caps_to_str(idx)); | |
109 | if (caps >> 0x1) | |
110 | pr_out(", "); | |
111 | } | |
112 | } | |
113 | caps >>= 0x1; | |
114 | } | |
115 | ||
116 | if (rd->json_output) | |
117 | jsonw_end_array(rd->jw); | |
118 | else | |
119 | pr_out(">"); | |
120 | } | |
121 | ||
122 | static void dev_print_fw(struct rd *rd, struct nlattr **tb) | |
123 | { | |
124 | const char *str; | |
125 | if (!tb[RDMA_NLDEV_ATTR_FW_VERSION]) | |
126 | return; | |
127 | ||
128 | str = mnl_attr_get_str(tb[RDMA_NLDEV_ATTR_FW_VERSION]); | |
129 | if (rd->json_output) | |
130 | jsonw_string_field(rd->jw, "fw", str); | |
131 | else | |
132 | pr_out("fw %s ", str); | |
133 | } | |
134 | ||
135 | static void dev_print_node_guid(struct rd *rd, struct nlattr **tb) | |
136 | { | |
137 | uint64_t node_guid; | |
138 | uint16_t vp[4]; | |
139 | char str[32]; | |
140 | ||
141 | if (!tb[RDMA_NLDEV_ATTR_NODE_GUID]) | |
142 | return; | |
143 | ||
144 | node_guid = mnl_attr_get_u64(tb[RDMA_NLDEV_ATTR_NODE_GUID]); | |
145 | memcpy(vp, &node_guid, sizeof(uint64_t)); | |
146 | snprintf(str, 32, "%04x:%04x:%04x:%04x", vp[3], vp[2], vp[1], vp[0]); | |
147 | if (rd->json_output) | |
148 | jsonw_string_field(rd->jw, "node_guid", str); | |
149 | else | |
150 | pr_out("node_guid %s ", str); | |
151 | } | |
152 | ||
153 | static void dev_print_sys_image_guid(struct rd *rd, struct nlattr **tb) | |
154 | { | |
155 | uint64_t sys_image_guid; | |
156 | uint16_t vp[4]; | |
157 | char str[32]; | |
158 | ||
159 | if (!tb[RDMA_NLDEV_ATTR_SYS_IMAGE_GUID]) | |
160 | return; | |
161 | ||
162 | sys_image_guid = mnl_attr_get_u64(tb[RDMA_NLDEV_ATTR_SYS_IMAGE_GUID]); | |
163 | memcpy(vp, &sys_image_guid, sizeof(uint64_t)); | |
164 | snprintf(str, 32, "%04x:%04x:%04x:%04x", vp[3], vp[2], vp[1], vp[0]); | |
165 | if (rd->json_output) | |
166 | jsonw_string_field(rd->jw, "sys_image_guid", str); | |
167 | else | |
168 | pr_out("sys_image_guid %s ", str); | |
169 | } | |
170 | ||
171 | static void dev_print_dim_setting(struct rd *rd, struct nlattr **tb) | |
172 | { | |
173 | uint8_t dim_setting; | |
174 | ||
175 | if (!tb[RDMA_NLDEV_ATTR_DEV_DIM]) | |
176 | return; | |
177 | ||
178 | dim_setting = mnl_attr_get_u8(tb[RDMA_NLDEV_ATTR_DEV_DIM]); | |
179 | if (dim_setting > 1) | |
180 | return; | |
181 | ||
182 | print_on_off(rd, "adaptive-moderation", dim_setting); | |
183 | ||
184 | } | |
185 | ||
186 | static const char *node_type_to_str(uint8_t node_type) | |
187 | { | |
188 | static const char * const node_type_str[] = { "unknown", "ca", | |
189 | "switch", "router", | |
190 | "rnic", "usnic", | |
191 | "usnic_udp", | |
192 | "unspecified" }; | |
193 | if (node_type < ARRAY_SIZE(node_type_str)) | |
194 | return node_type_str[node_type]; | |
195 | return "unknown"; | |
196 | } | |
197 | ||
198 | static void dev_print_node_type(struct rd *rd, struct nlattr **tb) | |
199 | { | |
200 | const char *node_str; | |
201 | uint8_t node_type; | |
202 | ||
203 | if (!tb[RDMA_NLDEV_ATTR_DEV_NODE_TYPE]) | |
204 | return; | |
205 | ||
206 | node_type = mnl_attr_get_u8(tb[RDMA_NLDEV_ATTR_DEV_NODE_TYPE]); | |
207 | node_str = node_type_to_str(node_type); | |
208 | if (rd->json_output) | |
209 | jsonw_string_field(rd->jw, "node_type", node_str); | |
210 | else | |
211 | pr_out("node_type %s ", node_str); | |
212 | } | |
213 | ||
214 | static int dev_parse_cb(const struct nlmsghdr *nlh, void *data) | |
215 | { | |
216 | struct nlattr *tb[RDMA_NLDEV_ATTR_MAX] = {}; | |
217 | struct rd *rd = data; | |
218 | const char *name; | |
219 | uint32_t idx; | |
220 | ||
221 | mnl_attr_parse(nlh, 0, rd_attr_cb, tb); | |
222 | if (!tb[RDMA_NLDEV_ATTR_DEV_INDEX] || !tb[RDMA_NLDEV_ATTR_DEV_NAME]) | |
223 | return MNL_CB_ERROR; | |
224 | ||
225 | idx = mnl_attr_get_u32(tb[RDMA_NLDEV_ATTR_DEV_INDEX]); | |
226 | name = mnl_attr_get_str(tb[RDMA_NLDEV_ATTR_DEV_NAME]); | |
227 | if (rd->json_output) { | |
228 | jsonw_uint_field(rd->jw, "ifindex", idx); | |
229 | jsonw_string_field(rd->jw, "ifname", name); | |
230 | } else { | |
231 | pr_out("%u: %s: ", idx, name); | |
232 | } | |
233 | ||
234 | dev_print_node_type(rd, tb); | |
235 | dev_print_fw(rd, tb); | |
236 | dev_print_node_guid(rd, tb); | |
237 | dev_print_sys_image_guid(rd, tb); | |
238 | if (rd->show_details) { | |
239 | dev_print_dim_setting(rd, tb); | |
240 | dev_print_caps(rd, tb); | |
241 | } | |
242 | ||
243 | if (!rd->json_output) | |
244 | pr_out("\n"); | |
245 | return MNL_CB_OK; | |
246 | } | |
247 | ||
248 | static int dev_no_args(struct rd *rd) | |
249 | { | |
250 | uint32_t seq; | |
251 | int ret; | |
252 | ||
253 | rd_prepare_msg(rd, RDMA_NLDEV_CMD_GET, | |
254 | &seq, (NLM_F_REQUEST | NLM_F_ACK)); | |
255 | mnl_attr_put_u32(rd->nlh, RDMA_NLDEV_ATTR_DEV_INDEX, rd->dev_idx); | |
256 | ret = rd_send_msg(rd); | |
257 | if (ret) | |
258 | return ret; | |
259 | ||
260 | if (rd->json_output) | |
261 | jsonw_start_object(rd->jw); | |
262 | ret = rd_recv_msg(rd, dev_parse_cb, rd, seq); | |
263 | if (rd->json_output) | |
264 | jsonw_end_object(rd->jw); | |
265 | return ret; | |
266 | } | |
267 | ||
268 | static int dev_one_show(struct rd *rd) | |
269 | { | |
270 | const struct rd_cmd cmds[] = { | |
271 | { NULL, dev_no_args}, | |
272 | { 0 } | |
273 | }; | |
274 | ||
275 | return rd_exec_cmd(rd, cmds, "parameter"); | |
276 | } | |
277 | ||
278 | static int dev_set_name(struct rd *rd) | |
279 | { | |
280 | uint32_t seq; | |
281 | ||
282 | if (rd_no_arg(rd)) { | |
283 | pr_err("Please provide device new name.\n"); | |
284 | return -EINVAL; | |
285 | } | |
286 | ||
287 | rd_prepare_msg(rd, RDMA_NLDEV_CMD_SET, | |
288 | &seq, (NLM_F_REQUEST | NLM_F_ACK)); | |
289 | mnl_attr_put_u32(rd->nlh, RDMA_NLDEV_ATTR_DEV_INDEX, rd->dev_idx); | |
290 | mnl_attr_put_strz(rd->nlh, RDMA_NLDEV_ATTR_DEV_NAME, rd_argv(rd)); | |
291 | ||
292 | return rd_sendrecv_msg(rd, seq); | |
293 | } | |
294 | ||
295 | static int dev_set_netns(struct rd *rd) | |
296 | { | |
297 | char *netns_path; | |
298 | uint32_t seq; | |
299 | int netns; | |
300 | int ret; | |
301 | ||
302 | if (rd_no_arg(rd)) { | |
303 | pr_err("Please provide device name.\n"); | |
304 | return -EINVAL; | |
305 | } | |
306 | ||
307 | if (asprintf(&netns_path, "%s/%s", NETNS_RUN_DIR, rd_argv(rd)) < 0) | |
308 | return -ENOMEM; | |
309 | ||
310 | netns = open(netns_path, O_RDONLY | O_CLOEXEC); | |
311 | if (netns < 0) { | |
312 | fprintf(stderr, "Cannot open network namespace \"%s\": %s\n", | |
313 | rd_argv(rd), strerror(errno)); | |
314 | ret = -EINVAL; | |
315 | goto done; | |
316 | } | |
317 | ||
318 | rd_prepare_msg(rd, RDMA_NLDEV_CMD_SET, | |
319 | &seq, (NLM_F_REQUEST | NLM_F_ACK)); | |
320 | mnl_attr_put_u32(rd->nlh, RDMA_NLDEV_ATTR_DEV_INDEX, rd->dev_idx); | |
321 | mnl_attr_put_u32(rd->nlh, RDMA_NLDEV_NET_NS_FD, netns); | |
322 | ret = rd_sendrecv_msg(rd, seq); | |
323 | close(netns); | |
324 | done: | |
325 | free(netns_path); | |
326 | return ret; | |
327 | } | |
328 | ||
329 | static int dev_set_dim_sendmsg(struct rd *rd, uint8_t dim_setting) | |
330 | { | |
331 | uint32_t seq; | |
332 | ||
333 | rd_prepare_msg(rd, RDMA_NLDEV_CMD_SET, &seq, | |
334 | (NLM_F_REQUEST | NLM_F_ACK)); | |
335 | mnl_attr_put_u32(rd->nlh, RDMA_NLDEV_ATTR_DEV_INDEX, rd->dev_idx); | |
336 | mnl_attr_put_u8(rd->nlh, RDMA_NLDEV_ATTR_DEV_DIM, dim_setting); | |
337 | ||
338 | return rd_sendrecv_msg(rd, seq); | |
339 | } | |
340 | ||
341 | static int dev_set_dim_off(struct rd *rd) | |
342 | { | |
343 | return dev_set_dim_sendmsg(rd, 0); | |
344 | } | |
345 | ||
346 | static int dev_set_dim_on(struct rd *rd) | |
347 | { | |
348 | return dev_set_dim_sendmsg(rd, 1); | |
349 | } | |
350 | ||
351 | static int dev_set_dim(struct rd *rd) | |
352 | { | |
353 | const struct rd_cmd cmds[] = { | |
354 | { NULL, dev_help}, | |
355 | { "on", dev_set_dim_on}, | |
356 | { "off", dev_set_dim_off}, | |
357 | { 0 } | |
358 | }; | |
359 | ||
360 | return rd_exec_cmd(rd, cmds, "parameter"); | |
361 | } | |
362 | ||
363 | static int dev_one_set(struct rd *rd) | |
364 | { | |
365 | const struct rd_cmd cmds[] = { | |
366 | { NULL, dev_help}, | |
367 | { "name", dev_set_name}, | |
368 | { "netns", dev_set_netns}, | |
369 | { "adaptive-moderation", dev_set_dim}, | |
370 | { 0 } | |
371 | }; | |
372 | ||
373 | return rd_exec_cmd(rd, cmds, "parameter"); | |
374 | } | |
375 | ||
376 | static int dev_show(struct rd *rd) | |
377 | { | |
378 | return rd_exec_dev(rd, dev_one_show); | |
379 | } | |
380 | ||
381 | static int dev_set(struct rd *rd) | |
382 | { | |
383 | return rd_exec_require_dev(rd, dev_one_set); | |
384 | } | |
385 | ||
386 | int cmd_dev(struct rd *rd) | |
387 | { | |
388 | const struct rd_cmd cmds[] = { | |
389 | { NULL, dev_show }, | |
390 | { "show", dev_show }, | |
391 | { "list", dev_show }, | |
392 | { "set", dev_set }, | |
393 | { "help", dev_help }, | |
394 | { 0 } | |
395 | }; | |
396 | ||
397 | return rd_exec_cmd(rd, cmds, "dev command"); | |
398 | } |