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Commit | Line | Data |
---|---|---|
74bd75c2 LR |
1 | /* |
2 | * utils.c RDMA tool | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or | |
5 | * modify it under the terms of the GNU General Public License | |
6 | * as published by the Free Software Foundation; either version | |
7 | * 2 of the License, or (at your option) any later version. | |
8 | * | |
9 | * Authors: Leon Romanovsky <leonro@mellanox.com> | |
10 | */ | |
11 | ||
12 | #include "rdma.h" | |
6416d1a0 | 13 | #include <ctype.h> |
33115275 | 14 | #include <inttypes.h> |
74bd75c2 | 15 | |
5f4892e2 | 16 | int rd_argc(struct rd *rd) |
74bd75c2 LR |
17 | { |
18 | return rd->argc; | |
19 | } | |
20 | ||
40df8263 | 21 | char *rd_argv(struct rd *rd) |
74bd75c2 LR |
22 | { |
23 | if (!rd_argc(rd)) | |
24 | return NULL; | |
25 | return *rd->argv; | |
26 | } | |
27 | ||
684d8209 | 28 | int strcmpx(const char *str1, const char *str2) |
74bd75c2 LR |
29 | { |
30 | if (strlen(str1) > strlen(str2)) | |
31 | return -1; | |
32 | return strncmp(str1, str2, strlen(str1)); | |
33 | } | |
34 | ||
35 | static bool rd_argv_match(struct rd *rd, const char *pattern) | |
36 | { | |
37 | if (!rd_argc(rd)) | |
38 | return false; | |
39 | return strcmpx(rd_argv(rd), pattern) == 0; | |
40 | } | |
41 | ||
42 | void rd_arg_inc(struct rd *rd) | |
43 | { | |
44 | if (!rd_argc(rd)) | |
45 | return; | |
46 | rd->argc--; | |
47 | rd->argv++; | |
48 | } | |
49 | ||
50 | bool rd_no_arg(struct rd *rd) | |
51 | { | |
52 | return rd_argc(rd) == 0; | |
53 | } | |
54 | ||
6416d1a0 LR |
55 | /* |
56 | * Possible input:output | |
57 | * dev/port | first port | is_dump_all | |
58 | * mlx5_1 | 0 | true | |
59 | * mlx5_1/ | 0 | true | |
60 | * mlx5_1/0 | 0 | false | |
61 | * mlx5_1/1 | 1 | false | |
62 | * mlx5_1/- | 0 | false | |
63 | * | |
64 | * In strict mode, /- will return error. | |
65 | */ | |
66 | static int get_port_from_argv(struct rd *rd, uint32_t *port, | |
67 | bool *is_dump_all, bool strict_port) | |
40df8263 LR |
68 | { |
69 | char *slash; | |
70 | ||
6416d1a0 LR |
71 | *port = 0; |
72 | *is_dump_all = true; | |
73 | ||
40df8263 LR |
74 | slash = strchr(rd_argv(rd), '/'); |
75 | /* if no port found, return 0 */ | |
6416d1a0 LR |
76 | if (slash++) { |
77 | if (*slash == '-') { | |
78 | if (strict_port) | |
79 | return -EINVAL; | |
80 | *is_dump_all = false; | |
81 | return 0; | |
82 | } | |
83 | ||
84 | if (isdigit(*slash)) { | |
85 | *is_dump_all = false; | |
86 | *port = atoi(slash); | |
87 | } | |
88 | if (!*port && strlen(slash)) | |
89 | return -EINVAL; | |
90 | } | |
91 | return 0; | |
40df8263 LR |
92 | } |
93 | ||
74bd75c2 LR |
94 | static struct dev_map *dev_map_alloc(const char *dev_name) |
95 | { | |
96 | struct dev_map *dev_map; | |
97 | ||
98 | dev_map = calloc(1, sizeof(*dev_map)); | |
99 | if (!dev_map) | |
100 | return NULL; | |
101 | dev_map->dev_name = strdup(dev_name); | |
5f826553 LR |
102 | if (!dev_map->dev_name) { |
103 | free(dev_map); | |
104 | return NULL; | |
105 | } | |
74bd75c2 LR |
106 | |
107 | return dev_map; | |
108 | } | |
109 | ||
74bd75c2 LR |
110 | static void dev_map_cleanup(struct rd *rd) |
111 | { | |
112 | struct dev_map *dev_map, *tmp; | |
113 | ||
114 | list_for_each_entry_safe(dev_map, tmp, | |
115 | &rd->dev_map_list, list) { | |
116 | list_del(&dev_map->list); | |
b1e6bc43 LR |
117 | free(dev_map->dev_name); |
118 | free(dev_map); | |
74bd75c2 LR |
119 | } |
120 | } | |
121 | ||
1174be72 LR |
122 | static int add_filter(struct rd *rd, char *key, char *value, |
123 | const struct filters valid_filters[]) | |
124 | { | |
125 | char cset[] = "1234567890,-"; | |
126 | struct filter_entry *fe; | |
127 | bool key_found = false; | |
128 | int idx = 0; | |
129 | int ret; | |
130 | ||
131 | fe = calloc(1, sizeof(*fe)); | |
132 | if (!fe) | |
133 | return -ENOMEM; | |
134 | ||
135 | while (idx < MAX_NUMBER_OF_FILTERS && valid_filters[idx].name) { | |
136 | if (!strcmpx(key, valid_filters[idx].name)) { | |
137 | key_found = true; | |
138 | break; | |
139 | } | |
140 | idx++; | |
141 | } | |
142 | if (!key_found) { | |
143 | pr_err("Unsupported filter option: %s\n", key); | |
144 | ret = -EINVAL; | |
145 | goto err; | |
146 | } | |
147 | ||
148 | /* | |
149 | * Check the filter validity, not optimal, but works | |
150 | * | |
151 | * Actually, there are three types of filters | |
152 | * numeric - for example PID or QPN | |
153 | * string - for example states | |
154 | * link - user requested to filter on specific link | |
155 | * e.g. mlx5_1/1, mlx5_1/-, mlx5_1 ... | |
156 | */ | |
157 | if (valid_filters[idx].is_number && | |
158 | strspn(value, cset) != strlen(value)) { | |
159 | pr_err("%s filter accepts \"%s\" characters only\n", key, cset); | |
160 | ret = -EINVAL; | |
161 | goto err; | |
162 | } | |
163 | ||
164 | fe->key = strdup(key); | |
165 | fe->value = strdup(value); | |
166 | if (!fe->key || !fe->value) { | |
167 | ret = -ENOMEM; | |
168 | goto err_alloc; | |
169 | } | |
170 | ||
171 | for (idx = 0; idx < strlen(fe->value); idx++) | |
172 | fe->value[idx] = tolower(fe->value[idx]); | |
173 | ||
174 | list_add_tail(&fe->list, &rd->filter_list); | |
175 | return 0; | |
176 | ||
177 | err_alloc: | |
178 | free(fe->value); | |
179 | free(fe->key); | |
180 | err: | |
181 | free(fe); | |
182 | return ret; | |
183 | } | |
184 | ||
185 | int rd_build_filter(struct rd *rd, const struct filters valid_filters[]) | |
186 | { | |
187 | int ret = 0; | |
188 | int idx = 0; | |
189 | ||
190 | if (!valid_filters || !rd_argc(rd)) | |
191 | goto out; | |
192 | ||
193 | if (rd_argc(rd) == 1) { | |
194 | pr_err("No filter data was supplied to filter option %s\n", rd_argv(rd)); | |
195 | ret = -EINVAL; | |
196 | goto out; | |
197 | } | |
198 | ||
199 | if (rd_argc(rd) % 2) { | |
200 | pr_err("There is filter option without data\n"); | |
201 | ret = -EINVAL; | |
202 | goto out; | |
203 | } | |
204 | ||
205 | while (idx != rd_argc(rd)) { | |
206 | /* | |
207 | * We can do micro-optimization and skip "dev" | |
208 | * and "link" filters, but it is not worth of it. | |
209 | */ | |
210 | ret = add_filter(rd, *(rd->argv + idx), | |
211 | *(rd->argv + idx + 1), valid_filters); | |
212 | if (ret) | |
213 | goto out; | |
214 | idx += 2; | |
215 | } | |
216 | ||
217 | out: | |
218 | return ret; | |
219 | } | |
220 | ||
221 | bool rd_check_is_key_exist(struct rd *rd, const char *key) | |
222 | { | |
223 | struct filter_entry *fe; | |
224 | ||
225 | list_for_each_entry(fe, &rd->filter_list, list) { | |
226 | if (!strcmpx(fe->key, key)) | |
227 | return true; | |
228 | } | |
229 | ||
230 | return false; | |
231 | } | |
232 | ||
233 | /* | |
234 | * Check if string entry is filtered: | |
235 | * * key doesn't exist -> user didn't request -> not filtered | |
236 | */ | |
237 | bool rd_check_is_string_filtered(struct rd *rd, | |
238 | const char *key, const char *val) | |
239 | { | |
240 | bool key_is_filtered = false; | |
241 | struct filter_entry *fe; | |
242 | char *p = NULL; | |
243 | char *str; | |
244 | ||
245 | list_for_each_entry(fe, &rd->filter_list, list) { | |
246 | if (!strcmpx(fe->key, key)) { | |
247 | /* We found the key */ | |
248 | p = strdup(fe->value); | |
249 | key_is_filtered = true; | |
250 | if (!p) { | |
251 | /* | |
252 | * Something extremely wrong if we fail | |
253 | * to allocate small amount of bytes. | |
254 | */ | |
255 | pr_err("Found key, but failed to allocate memory to store value\n"); | |
256 | return key_is_filtered; | |
257 | } | |
258 | ||
259 | /* | |
260 | * Need to check if value in range | |
261 | * It can come in the following formats | |
262 | * and their permutations: | |
263 | * str | |
264 | * str1,str2 | |
265 | */ | |
266 | str = strtok(p, ","); | |
267 | while (str) { | |
268 | if (strlen(str) == strlen(val) && | |
269 | !strcasecmp(str, val)) { | |
270 | key_is_filtered = false; | |
271 | goto out; | |
272 | } | |
273 | str = strtok(NULL, ","); | |
274 | } | |
275 | goto out; | |
276 | } | |
277 | } | |
278 | ||
279 | out: | |
280 | free(p); | |
281 | return key_is_filtered; | |
282 | } | |
283 | ||
284 | /* | |
285 | * Check if key is filtered: | |
286 | * key doesn't exist -> user didn't request -> not filtered | |
287 | */ | |
288 | bool rd_check_is_filtered(struct rd *rd, const char *key, uint32_t val) | |
289 | { | |
290 | bool key_is_filtered = false; | |
291 | struct filter_entry *fe; | |
292 | ||
293 | list_for_each_entry(fe, &rd->filter_list, list) { | |
294 | uint32_t left_val = 0, fe_value = 0; | |
295 | bool range_check = false; | |
296 | char *p = fe->value; | |
297 | ||
298 | if (!strcmpx(fe->key, key)) { | |
299 | /* We found the key */ | |
300 | key_is_filtered = true; | |
301 | /* | |
302 | * Need to check if value in range | |
303 | * It can come in the following formats | |
304 | * (and their permutations): | |
305 | * numb | |
306 | * numb1,numb2 | |
307 | * ,numb1,numb2 | |
308 | * numb1-numb2 | |
309 | * numb1,numb2-numb3,numb4-numb5 | |
310 | */ | |
311 | while (*p) { | |
312 | if (isdigit(*p)) { | |
313 | fe_value = strtol(p, &p, 10); | |
314 | if (fe_value == val || | |
315 | (range_check && left_val < val && | |
316 | val < fe_value)) { | |
317 | key_is_filtered = false; | |
318 | goto out; | |
319 | } | |
320 | range_check = false; | |
321 | } else { | |
322 | if (*p == '-') { | |
323 | left_val = fe_value; | |
324 | range_check = true; | |
325 | } | |
326 | p++; | |
327 | } | |
328 | } | |
329 | goto out; | |
330 | } | |
331 | } | |
332 | ||
333 | out: | |
334 | return key_is_filtered; | |
335 | } | |
336 | ||
337 | static void filters_cleanup(struct rd *rd) | |
338 | { | |
339 | struct filter_entry *fe, *tmp; | |
340 | ||
341 | list_for_each_entry_safe(fe, tmp, | |
342 | &rd->filter_list, list) { | |
343 | list_del(&fe->list); | |
344 | free(fe->key); | |
345 | free(fe->value); | |
346 | free(fe); | |
347 | } | |
348 | } | |
349 | ||
74bd75c2 | 350 | static const enum mnl_attr_data_type nldev_policy[RDMA_NLDEV_ATTR_MAX] = { |
40df8263 | 351 | [RDMA_NLDEV_ATTR_DEV_INDEX] = MNL_TYPE_U32, |
74bd75c2 LR |
352 | [RDMA_NLDEV_ATTR_DEV_NAME] = MNL_TYPE_NUL_STRING, |
353 | [RDMA_NLDEV_ATTR_PORT_INDEX] = MNL_TYPE_U32, | |
40df8263 LR |
354 | [RDMA_NLDEV_ATTR_CAP_FLAGS] = MNL_TYPE_U64, |
355 | [RDMA_NLDEV_ATTR_FW_VERSION] = MNL_TYPE_NUL_STRING, | |
356 | [RDMA_NLDEV_ATTR_NODE_GUID] = MNL_TYPE_U64, | |
357 | [RDMA_NLDEV_ATTR_SYS_IMAGE_GUID] = MNL_TYPE_U64, | |
da990ab4 LR |
358 | [RDMA_NLDEV_ATTR_LID] = MNL_TYPE_U32, |
359 | [RDMA_NLDEV_ATTR_SM_LID] = MNL_TYPE_U32, | |
360 | [RDMA_NLDEV_ATTR_LMC] = MNL_TYPE_U8, | |
361 | [RDMA_NLDEV_ATTR_PORT_STATE] = MNL_TYPE_U8, | |
362 | [RDMA_NLDEV_ATTR_PORT_PHYS_STATE] = MNL_TYPE_U8, | |
40df8263 | 363 | [RDMA_NLDEV_ATTR_DEV_NODE_TYPE] = MNL_TYPE_U8, |
923aa825 LR |
364 | [RDMA_NLDEV_ATTR_RES_SUMMARY] = MNL_TYPE_NESTED, |
365 | [RDMA_NLDEV_ATTR_RES_SUMMARY_ENTRY] = MNL_TYPE_NESTED, | |
366 | [RDMA_NLDEV_ATTR_RES_SUMMARY_ENTRY_NAME] = MNL_TYPE_NUL_STRING, | |
367 | [RDMA_NLDEV_ATTR_RES_SUMMARY_ENTRY_CURR] = MNL_TYPE_U64, | |
8ecac46a LR |
368 | [RDMA_NLDEV_ATTR_RES_QP] = MNL_TYPE_NESTED, |
369 | [RDMA_NLDEV_ATTR_RES_QP_ENTRY] = MNL_TYPE_NESTED, | |
370 | [RDMA_NLDEV_ATTR_RES_LQPN] = MNL_TYPE_U32, | |
371 | [RDMA_NLDEV_ATTR_RES_RQPN] = MNL_TYPE_U32, | |
372 | [RDMA_NLDEV_ATTR_RES_RQ_PSN] = MNL_TYPE_U32, | |
373 | [RDMA_NLDEV_ATTR_RES_SQ_PSN] = MNL_TYPE_U32, | |
374 | [RDMA_NLDEV_ATTR_RES_PATH_MIG_STATE] = MNL_TYPE_U8, | |
375 | [RDMA_NLDEV_ATTR_RES_TYPE] = MNL_TYPE_U8, | |
376 | [RDMA_NLDEV_ATTR_RES_STATE] = MNL_TYPE_U8, | |
377 | [RDMA_NLDEV_ATTR_RES_PID] = MNL_TYPE_U32, | |
378 | [RDMA_NLDEV_ATTR_RES_KERN_NAME] = MNL_TYPE_NUL_STRING, | |
9a362cc7 SW |
379 | [RDMA_NLDEV_ATTR_RES_CM_ID] = MNL_TYPE_NESTED, |
380 | [RDMA_NLDEV_ATTR_RES_CM_ID_ENTRY] = MNL_TYPE_NESTED, | |
381 | [RDMA_NLDEV_ATTR_RES_PS] = MNL_TYPE_U32, | |
382 | [RDMA_NLDEV_ATTR_RES_SRC_ADDR] = MNL_TYPE_UNSPEC, | |
383 | [RDMA_NLDEV_ATTR_RES_DST_ADDR] = MNL_TYPE_UNSPEC, | |
b0b8e32c SW |
384 | [RDMA_NLDEV_ATTR_RES_CQ] = MNL_TYPE_NESTED, |
385 | [RDMA_NLDEV_ATTR_RES_CQ_ENTRY] = MNL_TYPE_NESTED, | |
386 | [RDMA_NLDEV_ATTR_RES_CQE] = MNL_TYPE_U32, | |
387 | [RDMA_NLDEV_ATTR_RES_USECNT] = MNL_TYPE_U64, | |
388 | [RDMA_NLDEV_ATTR_RES_POLL_CTX] = MNL_TYPE_U8, | |
8958a15c SW |
389 | [RDMA_NLDEV_ATTR_RES_MR] = MNL_TYPE_NESTED, |
390 | [RDMA_NLDEV_ATTR_RES_MR_ENTRY] = MNL_TYPE_NESTED, | |
391 | [RDMA_NLDEV_ATTR_RES_RKEY] = MNL_TYPE_U32, | |
392 | [RDMA_NLDEV_ATTR_RES_LKEY] = MNL_TYPE_U32, | |
393 | [RDMA_NLDEV_ATTR_RES_IOVA] = MNL_TYPE_U64, | |
394 | [RDMA_NLDEV_ATTR_RES_MRLEN] = MNL_TYPE_U64, | |
15259427 LR |
395 | [RDMA_NLDEV_ATTR_NDEV_INDEX] = MNL_TYPE_U32, |
396 | [RDMA_NLDEV_ATTR_NDEV_NAME] = MNL_TYPE_NUL_STRING, | |
33115275 SW |
397 | [RDMA_NLDEV_ATTR_DRIVER] = MNL_TYPE_NESTED, |
398 | [RDMA_NLDEV_ATTR_DRIVER_ENTRY] = MNL_TYPE_NESTED, | |
399 | [RDMA_NLDEV_ATTR_DRIVER_STRING] = MNL_TYPE_NUL_STRING, | |
400 | [RDMA_NLDEV_ATTR_DRIVER_PRINT_TYPE] = MNL_TYPE_U8, | |
401 | [RDMA_NLDEV_ATTR_DRIVER_S32] = MNL_TYPE_U32, | |
402 | [RDMA_NLDEV_ATTR_DRIVER_U32] = MNL_TYPE_U32, | |
403 | [RDMA_NLDEV_ATTR_DRIVER_S64] = MNL_TYPE_U64, | |
404 | [RDMA_NLDEV_ATTR_DRIVER_U64] = MNL_TYPE_U64, | |
74bd75c2 LR |
405 | }; |
406 | ||
33115275 SW |
407 | int rd_attr_check(const struct nlattr *attr, int *typep) |
408 | { | |
409 | int type; | |
410 | ||
411 | if (mnl_attr_type_valid(attr, RDMA_NLDEV_ATTR_MAX) < 0) | |
412 | return MNL_CB_ERROR; | |
413 | ||
414 | type = mnl_attr_get_type(attr); | |
415 | ||
416 | if (mnl_attr_validate(attr, nldev_policy[type]) < 0) | |
417 | return MNL_CB_ERROR; | |
418 | ||
419 | *typep = nldev_policy[type]; | |
420 | return MNL_CB_OK; | |
421 | } | |
422 | ||
74bd75c2 LR |
423 | int rd_attr_cb(const struct nlattr *attr, void *data) |
424 | { | |
425 | const struct nlattr **tb = data; | |
426 | int type; | |
427 | ||
428 | if (mnl_attr_type_valid(attr, RDMA_NLDEV_ATTR_MAX) < 0) | |
fda0a61d LR |
429 | /* We received uknown attribute */ |
430 | return MNL_CB_OK; | |
74bd75c2 LR |
431 | |
432 | type = mnl_attr_get_type(attr); | |
433 | ||
434 | if (mnl_attr_validate(attr, nldev_policy[type]) < 0) | |
435 | return MNL_CB_ERROR; | |
436 | ||
437 | tb[type] = attr; | |
438 | return MNL_CB_OK; | |
439 | } | |
440 | ||
441 | int rd_dev_init_cb(const struct nlmsghdr *nlh, void *data) | |
442 | { | |
443 | struct nlattr *tb[RDMA_NLDEV_ATTR_MAX] = {}; | |
444 | struct dev_map *dev_map; | |
445 | struct rd *rd = data; | |
446 | const char *dev_name; | |
447 | ||
448 | mnl_attr_parse(nlh, 0, rd_attr_cb, tb); | |
449 | if (!tb[RDMA_NLDEV_ATTR_DEV_NAME] || !tb[RDMA_NLDEV_ATTR_DEV_INDEX]) | |
450 | return MNL_CB_ERROR; | |
451 | if (!tb[RDMA_NLDEV_ATTR_PORT_INDEX]) { | |
452 | pr_err("This tool doesn't support switches yet\n"); | |
453 | return MNL_CB_ERROR; | |
454 | } | |
455 | ||
456 | dev_name = mnl_attr_get_str(tb[RDMA_NLDEV_ATTR_DEV_NAME]); | |
457 | ||
458 | dev_map = dev_map_alloc(dev_name); | |
459 | if (!dev_map) | |
460 | /* The main function will cleanup the allocations */ | |
461 | return MNL_CB_ERROR; | |
462 | list_add_tail(&dev_map->list, &rd->dev_map_list); | |
463 | ||
464 | dev_map->num_ports = mnl_attr_get_u32(tb[RDMA_NLDEV_ATTR_PORT_INDEX]); | |
465 | dev_map->idx = mnl_attr_get_u32(tb[RDMA_NLDEV_ATTR_DEV_INDEX]); | |
466 | return MNL_CB_OK; | |
467 | } | |
468 | ||
5fc17280 | 469 | void rd_free(struct rd *rd) |
74bd75c2 LR |
470 | { |
471 | if (!rd) | |
472 | return; | |
5fc17280 | 473 | free(rd->buff); |
74bd75c2 | 474 | dev_map_cleanup(rd); |
1174be72 | 475 | filters_cleanup(rd); |
74bd75c2 LR |
476 | } |
477 | ||
6e0de6e8 LR |
478 | int rd_set_arg_to_devname(struct rd *rd) |
479 | { | |
480 | int ret = 0; | |
481 | ||
482 | while (!rd_no_arg(rd)) { | |
483 | if (rd_argv_match(rd, "dev") || rd_argv_match(rd, "link")) { | |
484 | rd_arg_inc(rd); | |
485 | if (rd_no_arg(rd)) { | |
486 | pr_err("No device name was supplied\n"); | |
487 | ret = -EINVAL; | |
488 | } | |
489 | goto out; | |
490 | } | |
491 | rd_arg_inc(rd); | |
492 | } | |
493 | out: | |
494 | return ret; | |
495 | } | |
496 | ||
6416d1a0 | 497 | int rd_exec_link(struct rd *rd, int (*cb)(struct rd *rd), bool strict_port) |
874c734c LR |
498 | { |
499 | struct dev_map *dev_map; | |
500 | uint32_t port; | |
501 | int ret = 0; | |
502 | ||
503 | if (rd->json_output) | |
504 | jsonw_start_array(rd->jw); | |
505 | if (rd_no_arg(rd)) { | |
506 | list_for_each_entry(dev_map, &rd->dev_map_list, list) { | |
507 | rd->dev_idx = dev_map->idx; | |
6416d1a0 LR |
508 | port = (strict_port) ? 1 : 0; |
509 | for (; port < dev_map->num_ports + 1; port++) { | |
874c734c LR |
510 | rd->port_idx = port; |
511 | ret = cb(rd); | |
512 | if (ret) | |
513 | goto out; | |
514 | } | |
515 | } | |
516 | ||
517 | } else { | |
6416d1a0 LR |
518 | bool is_dump_all; |
519 | ||
874c734c | 520 | dev_map = dev_map_lookup(rd, true); |
6416d1a0 LR |
521 | ret = get_port_from_argv(rd, &port, &is_dump_all, strict_port); |
522 | if (!dev_map || port > dev_map->num_ports || (!port && ret)) { | |
874c734c LR |
523 | pr_err("Wrong device name\n"); |
524 | ret = -ENOENT; | |
525 | goto out; | |
526 | } | |
527 | rd_arg_inc(rd); | |
528 | rd->dev_idx = dev_map->idx; | |
6416d1a0 | 529 | rd->port_idx = port; |
874c734c LR |
530 | for (; rd->port_idx < dev_map->num_ports + 1; rd->port_idx++) { |
531 | ret = cb(rd); | |
532 | if (ret) | |
533 | goto out; | |
6416d1a0 | 534 | if (!is_dump_all) |
874c734c LR |
535 | /* |
536 | * We got request to show link for devname | |
537 | * with port index. | |
538 | */ | |
539 | break; | |
540 | } | |
541 | } | |
542 | ||
543 | out: | |
544 | if (rd->json_output) | |
545 | jsonw_end_array(rd->jw); | |
546 | return ret; | |
547 | } | |
548 | ||
8b92a2c9 LR |
549 | int rd_exec_dev(struct rd *rd, int (*cb)(struct rd *rd)) |
550 | { | |
551 | struct dev_map *dev_map; | |
552 | int ret = 0; | |
553 | ||
554 | if (rd->json_output) | |
555 | jsonw_start_array(rd->jw); | |
556 | if (rd_no_arg(rd)) { | |
557 | list_for_each_entry(dev_map, &rd->dev_map_list, list) { | |
558 | rd->dev_idx = dev_map->idx; | |
559 | ret = cb(rd); | |
560 | if (ret) | |
561 | goto out; | |
562 | } | |
563 | } else { | |
564 | dev_map = dev_map_lookup(rd, false); | |
565 | if (!dev_map) { | |
b5564441 | 566 | pr_err("Wrong device name - %s\n", rd_argv(rd)); |
8b92a2c9 LR |
567 | ret = -ENOENT; |
568 | goto out; | |
569 | } | |
570 | rd_arg_inc(rd); | |
571 | rd->dev_idx = dev_map->idx; | |
572 | ret = cb(rd); | |
573 | } | |
574 | out: | |
575 | if (rd->json_output) | |
576 | jsonw_end_array(rd->jw); | |
577 | return ret; | |
578 | } | |
579 | ||
a14ceed3 LR |
580 | int rd_exec_require_dev(struct rd *rd, int (*cb)(struct rd *rd)) |
581 | { | |
582 | if (rd_no_arg(rd)) { | |
583 | pr_err("Please provide device name.\n"); | |
584 | return -EINVAL; | |
585 | } | |
586 | ||
587 | return rd_exec_dev(rd, cb); | |
588 | } | |
589 | ||
74bd75c2 LR |
590 | int rd_exec_cmd(struct rd *rd, const struct rd_cmd *cmds, const char *str) |
591 | { | |
592 | const struct rd_cmd *c; | |
593 | ||
594 | /* First argument in objs table is default variant */ | |
595 | if (rd_no_arg(rd)) | |
596 | return cmds->func(rd); | |
597 | ||
598 | for (c = cmds + 1; c->cmd; ++c) { | |
599 | if (rd_argv_match(rd, c->cmd)) { | |
600 | /* Move to next argument */ | |
601 | rd_arg_inc(rd); | |
602 | return c->func(rd); | |
603 | } | |
604 | } | |
605 | ||
606 | pr_err("Unknown %s '%s'.\n", str, rd_argv(rd)); | |
607 | return 0; | |
608 | } | |
609 | ||
610 | void rd_prepare_msg(struct rd *rd, uint32_t cmd, uint32_t *seq, uint16_t flags) | |
611 | { | |
612 | *seq = time(NULL); | |
613 | ||
614 | rd->nlh = mnl_nlmsg_put_header(rd->buff); | |
615 | rd->nlh->nlmsg_type = RDMA_NL_GET_TYPE(RDMA_NL_NLDEV, cmd); | |
616 | rd->nlh->nlmsg_seq = *seq; | |
617 | rd->nlh->nlmsg_flags = flags; | |
618 | } | |
619 | ||
620 | int rd_send_msg(struct rd *rd) | |
621 | { | |
622 | int ret; | |
623 | ||
624 | rd->nl = mnl_socket_open(NETLINK_RDMA); | |
625 | if (!rd->nl) { | |
626 | pr_err("Failed to open NETLINK_RDMA socket\n"); | |
627 | return -ENODEV; | |
628 | } | |
629 | ||
630 | ret = mnl_socket_bind(rd->nl, 0, MNL_SOCKET_AUTOPID); | |
631 | if (ret < 0) { | |
632 | pr_err("Failed to bind socket with err %d\n", ret); | |
633 | goto err; | |
634 | } | |
635 | ||
636 | ret = mnl_socket_sendto(rd->nl, rd->nlh, rd->nlh->nlmsg_len); | |
637 | if (ret < 0) { | |
638 | pr_err("Failed to send to socket with err %d\n", ret); | |
639 | goto err; | |
640 | } | |
641 | return 0; | |
642 | ||
643 | err: | |
644 | mnl_socket_close(rd->nl); | |
645 | return ret; | |
646 | } | |
647 | ||
648 | int rd_recv_msg(struct rd *rd, mnl_cb_t callback, void *data, unsigned int seq) | |
649 | { | |
650 | int ret; | |
651 | unsigned int portid; | |
652 | char buf[MNL_SOCKET_BUFFER_SIZE]; | |
653 | ||
654 | portid = mnl_socket_get_portid(rd->nl); | |
655 | do { | |
656 | ret = mnl_socket_recvfrom(rd->nl, buf, sizeof(buf)); | |
657 | if (ret <= 0) | |
658 | break; | |
659 | ||
660 | ret = mnl_cb_run(buf, ret, seq, portid, callback, data); | |
661 | } while (ret > 0); | |
662 | ||
663 | mnl_socket_close(rd->nl); | |
664 | return ret; | |
665 | } | |
40df8263 | 666 | |
0fc8c30b | 667 | static struct dev_map *_dev_map_lookup(struct rd *rd, const char *dev_name) |
40df8263 LR |
668 | { |
669 | struct dev_map *dev_map; | |
670 | ||
671 | list_for_each_entry(dev_map, &rd->dev_map_list, list) | |
672 | if (strcmp(dev_name, dev_map->dev_name) == 0) | |
673 | return dev_map; | |
674 | ||
675 | return NULL; | |
676 | } | |
677 | ||
678 | struct dev_map *dev_map_lookup(struct rd *rd, bool allow_port_index) | |
679 | { | |
680 | struct dev_map *dev_map; | |
681 | char *dev_name; | |
682 | char *slash; | |
683 | ||
99da9032 LR |
684 | if (rd_no_arg(rd)) |
685 | return NULL; | |
686 | ||
40df8263 LR |
687 | dev_name = strdup(rd_argv(rd)); |
688 | if (allow_port_index) { | |
689 | slash = strrchr(dev_name, '/'); | |
690 | if (slash) | |
691 | *slash = '\0'; | |
692 | } | |
693 | ||
694 | dev_map = _dev_map_lookup(rd, dev_name); | |
695 | free(dev_name); | |
696 | return dev_map; | |
697 | } | |
33115275 SW |
698 | |
699 | #define nla_type(attr) ((attr)->nla_type & NLA_TYPE_MASK) | |
700 | ||
701 | void newline(struct rd *rd) | |
702 | { | |
703 | if (rd->json_output) | |
704 | jsonw_end_array(rd->jw); | |
705 | else | |
706 | pr_out("\n"); | |
707 | } | |
708 | ||
709 | void newline_indent(struct rd *rd) | |
710 | { | |
711 | newline(rd); | |
712 | if (!rd->json_output) | |
713 | pr_out(" "); | |
714 | } | |
715 | ||
716 | static int print_driver_string(struct rd *rd, const char *key_str, | |
717 | const char *val_str) | |
718 | { | |
719 | if (rd->json_output) { | |
720 | jsonw_string_field(rd->jw, key_str, val_str); | |
721 | return 0; | |
722 | } else { | |
723 | return pr_out("%s %s ", key_str, val_str); | |
724 | } | |
725 | } | |
726 | ||
727 | static int print_driver_s32(struct rd *rd, const char *key_str, int32_t val, | |
728 | enum rdma_nldev_print_type print_type) | |
729 | { | |
730 | if (rd->json_output) { | |
731 | jsonw_int_field(rd->jw, key_str, val); | |
732 | return 0; | |
733 | } | |
734 | switch (print_type) { | |
735 | case RDMA_NLDEV_PRINT_TYPE_UNSPEC: | |
736 | return pr_out("%s %d ", key_str, val); | |
737 | case RDMA_NLDEV_PRINT_TYPE_HEX: | |
738 | return pr_out("%s 0x%x ", key_str, val); | |
739 | default: | |
740 | return -EINVAL; | |
741 | } | |
742 | } | |
743 | ||
744 | static int print_driver_u32(struct rd *rd, const char *key_str, uint32_t val, | |
745 | enum rdma_nldev_print_type print_type) | |
746 | { | |
747 | if (rd->json_output) { | |
748 | jsonw_int_field(rd->jw, key_str, val); | |
749 | return 0; | |
750 | } | |
751 | switch (print_type) { | |
752 | case RDMA_NLDEV_PRINT_TYPE_UNSPEC: | |
753 | return pr_out("%s %u ", key_str, val); | |
754 | case RDMA_NLDEV_PRINT_TYPE_HEX: | |
755 | return pr_out("%s 0x%x ", key_str, val); | |
756 | default: | |
757 | return -EINVAL; | |
758 | } | |
759 | } | |
760 | ||
761 | static int print_driver_s64(struct rd *rd, const char *key_str, int64_t val, | |
762 | enum rdma_nldev_print_type print_type) | |
763 | { | |
764 | if (rd->json_output) { | |
765 | jsonw_int_field(rd->jw, key_str, val); | |
766 | return 0; | |
767 | } | |
768 | switch (print_type) { | |
769 | case RDMA_NLDEV_PRINT_TYPE_UNSPEC: | |
770 | return pr_out("%s %" PRId64 " ", key_str, val); | |
771 | case RDMA_NLDEV_PRINT_TYPE_HEX: | |
772 | return pr_out("%s 0x%" PRIx64 " ", key_str, val); | |
773 | default: | |
774 | return -EINVAL; | |
775 | } | |
776 | } | |
777 | ||
778 | static int print_driver_u64(struct rd *rd, const char *key_str, uint64_t val, | |
779 | enum rdma_nldev_print_type print_type) | |
780 | { | |
781 | if (rd->json_output) { | |
782 | jsonw_int_field(rd->jw, key_str, val); | |
783 | return 0; | |
784 | } | |
785 | switch (print_type) { | |
786 | case RDMA_NLDEV_PRINT_TYPE_UNSPEC: | |
787 | return pr_out("%s %" PRIu64 " ", key_str, val); | |
788 | case RDMA_NLDEV_PRINT_TYPE_HEX: | |
789 | return pr_out("%s 0x%" PRIx64 " ", key_str, val); | |
790 | default: | |
791 | return -EINVAL; | |
792 | } | |
793 | } | |
794 | ||
795 | static int print_driver_entry(struct rd *rd, struct nlattr *key_attr, | |
796 | struct nlattr *val_attr, | |
797 | enum rdma_nldev_print_type print_type) | |
798 | { | |
799 | const char *key_str = mnl_attr_get_str(key_attr); | |
800 | int attr_type = nla_type(val_attr); | |
801 | ||
802 | switch (attr_type) { | |
803 | case RDMA_NLDEV_ATTR_DRIVER_STRING: | |
804 | return print_driver_string(rd, key_str, | |
805 | mnl_attr_get_str(val_attr)); | |
806 | case RDMA_NLDEV_ATTR_DRIVER_S32: | |
807 | return print_driver_s32(rd, key_str, | |
808 | mnl_attr_get_u32(val_attr), print_type); | |
809 | case RDMA_NLDEV_ATTR_DRIVER_U32: | |
810 | return print_driver_u32(rd, key_str, | |
811 | mnl_attr_get_u32(val_attr), print_type); | |
812 | case RDMA_NLDEV_ATTR_DRIVER_S64: | |
813 | return print_driver_s64(rd, key_str, | |
814 | mnl_attr_get_u64(val_attr), print_type); | |
815 | case RDMA_NLDEV_ATTR_DRIVER_U64: | |
816 | return print_driver_u64(rd, key_str, | |
817 | mnl_attr_get_u64(val_attr), print_type); | |
818 | } | |
819 | return -EINVAL; | |
820 | } | |
821 | ||
822 | void print_driver_table(struct rd *rd, struct nlattr *tb) | |
823 | { | |
824 | int print_type = RDMA_NLDEV_PRINT_TYPE_UNSPEC; | |
825 | struct nlattr *tb_entry, *key = NULL, *val; | |
826 | int type, cc = 0; | |
827 | int ret; | |
828 | ||
829 | if (!rd->show_driver_details || !tb) | |
830 | return; | |
831 | ||
832 | if (rd->pretty_output) | |
833 | newline_indent(rd); | |
834 | ||
835 | /* | |
836 | * Driver attrs are tuples of {key, [print-type], value}. | |
837 | * The key must be a string. If print-type is present, it | |
838 | * defines an alternate printf format type vs the native format | |
839 | * for the attribute. And the value can be any available | |
840 | * driver type. | |
841 | */ | |
842 | mnl_attr_for_each_nested(tb_entry, tb) { | |
843 | ||
844 | if (cc > MAX_LINE_LENGTH) { | |
845 | if (rd->pretty_output) | |
846 | newline_indent(rd); | |
847 | cc = 0; | |
848 | } | |
849 | if (rd_attr_check(tb_entry, &type) != MNL_CB_OK) | |
850 | return; | |
851 | if (!key) { | |
852 | if (type != MNL_TYPE_NUL_STRING) | |
853 | return; | |
854 | key = tb_entry; | |
855 | } else if (type == MNL_TYPE_U8) { | |
856 | print_type = mnl_attr_get_u8(tb_entry); | |
857 | } else { | |
858 | val = tb_entry; | |
859 | ret = print_driver_entry(rd, key, val, print_type); | |
860 | if (ret < 0) | |
861 | return; | |
862 | cc += ret; | |
863 | print_type = RDMA_NLDEV_PRINT_TYPE_UNSPEC; | |
864 | key = NULL; | |
865 | } | |
866 | } | |
867 | return; | |
868 | } |