Commit | Line | Data |
---|---|---|
bfcd3a46 JP |
1 | /* |
2 | * net/core/devlink.c - Network physical/parent device Netlink interface | |
3 | * | |
4 | * Heavily inspired by net/wireless/ | |
5 | * Copyright (c) 2016 Mellanox Technologies. All rights reserved. | |
6 | * Copyright (c) 2016 Jiri Pirko <jiri@mellanox.com> | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; either version 2 of the License, or | |
11 | * (at your option) any later version. | |
12 | */ | |
13 | ||
14 | #include <linux/kernel.h> | |
15 | #include <linux/module.h> | |
16 | #include <linux/types.h> | |
17 | #include <linux/slab.h> | |
18 | #include <linux/gfp.h> | |
19 | #include <linux/device.h> | |
20 | #include <linux/list.h> | |
21 | #include <linux/netdevice.h> | |
22 | #include <rdma/ib_verbs.h> | |
23 | #include <net/netlink.h> | |
24 | #include <net/genetlink.h> | |
25 | #include <net/rtnetlink.h> | |
26 | #include <net/net_namespace.h> | |
27 | #include <net/sock.h> | |
28 | #include <net/devlink.h> | |
e5224f0f JP |
29 | #define CREATE_TRACE_POINTS |
30 | #include <trace/events/devlink.h> | |
31 | ||
11770091 AS |
32 | static struct devlink_dpipe_field devlink_dpipe_fields_ethernet[] = { |
33 | { | |
12bdc5e1 | 34 | .name = "destination mac", |
11770091 AS |
35 | .id = DEVLINK_DPIPE_FIELD_ETHERNET_DST_MAC, |
36 | .bitwidth = 48, | |
37 | }, | |
38 | }; | |
39 | ||
40 | struct devlink_dpipe_header devlink_dpipe_header_ethernet = { | |
41 | .name = "ethernet", | |
42 | .id = DEVLINK_DPIPE_HEADER_ETHERNET, | |
43 | .fields = devlink_dpipe_fields_ethernet, | |
44 | .fields_count = ARRAY_SIZE(devlink_dpipe_fields_ethernet), | |
45 | .global = true, | |
46 | }; | |
47 | EXPORT_SYMBOL(devlink_dpipe_header_ethernet); | |
48 | ||
3fb886ec AS |
49 | static struct devlink_dpipe_field devlink_dpipe_fields_ipv4[] = { |
50 | { | |
51 | .name = "destination ip", | |
52 | .id = DEVLINK_DPIPE_FIELD_IPV4_DST_IP, | |
53 | .bitwidth = 32, | |
54 | }, | |
55 | }; | |
56 | ||
57 | struct devlink_dpipe_header devlink_dpipe_header_ipv4 = { | |
58 | .name = "ipv4", | |
59 | .id = DEVLINK_DPIPE_HEADER_IPV4, | |
60 | .fields = devlink_dpipe_fields_ipv4, | |
61 | .fields_count = ARRAY_SIZE(devlink_dpipe_fields_ipv4), | |
62 | .global = true, | |
63 | }; | |
64 | EXPORT_SYMBOL(devlink_dpipe_header_ipv4); | |
65 | ||
1797f5b3 AS |
66 | static struct devlink_dpipe_field devlink_dpipe_fields_ipv6[] = { |
67 | { | |
68 | .name = "destination ip", | |
69 | .id = DEVLINK_DPIPE_FIELD_IPV6_DST_IP, | |
70 | .bitwidth = 128, | |
71 | }, | |
72 | }; | |
73 | ||
74 | struct devlink_dpipe_header devlink_dpipe_header_ipv6 = { | |
75 | .name = "ipv6", | |
76 | .id = DEVLINK_DPIPE_HEADER_IPV6, | |
77 | .fields = devlink_dpipe_fields_ipv6, | |
78 | .fields_count = ARRAY_SIZE(devlink_dpipe_fields_ipv6), | |
79 | .global = true, | |
80 | }; | |
81 | EXPORT_SYMBOL(devlink_dpipe_header_ipv6); | |
82 | ||
e5224f0f | 83 | EXPORT_TRACEPOINT_SYMBOL_GPL(devlink_hwmsg); |
57186a5f | 84 | EXPORT_TRACEPOINT_SYMBOL_GPL(devlink_hwerr); |
bfcd3a46 JP |
85 | |
86 | static LIST_HEAD(devlink_list); | |
87 | ||
88 | /* devlink_mutex | |
89 | * | |
90 | * An overall lock guarding every operation coming from userspace. | |
91 | * It also guards devlink devices list and it is taken when | |
92 | * driver registers/unregisters it. | |
93 | */ | |
94 | static DEFINE_MUTEX(devlink_mutex); | |
95 | ||
bfcd3a46 JP |
96 | static struct net *devlink_net(const struct devlink *devlink) |
97 | { | |
98 | return read_pnet(&devlink->_net); | |
99 | } | |
100 | ||
101 | static void devlink_net_set(struct devlink *devlink, struct net *net) | |
102 | { | |
103 | write_pnet(&devlink->_net, net); | |
104 | } | |
105 | ||
106 | static struct devlink *devlink_get_from_attrs(struct net *net, | |
107 | struct nlattr **attrs) | |
108 | { | |
109 | struct devlink *devlink; | |
110 | char *busname; | |
111 | char *devname; | |
112 | ||
113 | if (!attrs[DEVLINK_ATTR_BUS_NAME] || !attrs[DEVLINK_ATTR_DEV_NAME]) | |
114 | return ERR_PTR(-EINVAL); | |
115 | ||
116 | busname = nla_data(attrs[DEVLINK_ATTR_BUS_NAME]); | |
117 | devname = nla_data(attrs[DEVLINK_ATTR_DEV_NAME]); | |
118 | ||
119 | list_for_each_entry(devlink, &devlink_list, list) { | |
120 | if (strcmp(devlink->dev->bus->name, busname) == 0 && | |
121 | strcmp(dev_name(devlink->dev), devname) == 0 && | |
122 | net_eq(devlink_net(devlink), net)) | |
123 | return devlink; | |
124 | } | |
125 | ||
126 | return ERR_PTR(-ENODEV); | |
127 | } | |
128 | ||
129 | static struct devlink *devlink_get_from_info(struct genl_info *info) | |
130 | { | |
131 | return devlink_get_from_attrs(genl_info_net(info), info->attrs); | |
132 | } | |
133 | ||
134 | static struct devlink_port *devlink_port_get_by_index(struct devlink *devlink, | |
135 | int port_index) | |
136 | { | |
137 | struct devlink_port *devlink_port; | |
138 | ||
139 | list_for_each_entry(devlink_port, &devlink->port_list, list) { | |
140 | if (devlink_port->index == port_index) | |
141 | return devlink_port; | |
142 | } | |
143 | return NULL; | |
144 | } | |
145 | ||
146 | static bool devlink_port_index_exists(struct devlink *devlink, int port_index) | |
147 | { | |
148 | return devlink_port_get_by_index(devlink, port_index); | |
149 | } | |
150 | ||
151 | static struct devlink_port *devlink_port_get_from_attrs(struct devlink *devlink, | |
152 | struct nlattr **attrs) | |
153 | { | |
154 | if (attrs[DEVLINK_ATTR_PORT_INDEX]) { | |
155 | u32 port_index = nla_get_u32(attrs[DEVLINK_ATTR_PORT_INDEX]); | |
156 | struct devlink_port *devlink_port; | |
157 | ||
158 | devlink_port = devlink_port_get_by_index(devlink, port_index); | |
159 | if (!devlink_port) | |
160 | return ERR_PTR(-ENODEV); | |
161 | return devlink_port; | |
162 | } | |
163 | return ERR_PTR(-EINVAL); | |
164 | } | |
165 | ||
166 | static struct devlink_port *devlink_port_get_from_info(struct devlink *devlink, | |
167 | struct genl_info *info) | |
168 | { | |
169 | return devlink_port_get_from_attrs(devlink, info->attrs); | |
170 | } | |
171 | ||
bf797471 JP |
172 | struct devlink_sb { |
173 | struct list_head list; | |
174 | unsigned int index; | |
175 | u32 size; | |
176 | u16 ingress_pools_count; | |
177 | u16 egress_pools_count; | |
178 | u16 ingress_tc_count; | |
179 | u16 egress_tc_count; | |
180 | }; | |
181 | ||
182 | static u16 devlink_sb_pool_count(struct devlink_sb *devlink_sb) | |
183 | { | |
184 | return devlink_sb->ingress_pools_count + devlink_sb->egress_pools_count; | |
185 | } | |
186 | ||
187 | static struct devlink_sb *devlink_sb_get_by_index(struct devlink *devlink, | |
188 | unsigned int sb_index) | |
189 | { | |
190 | struct devlink_sb *devlink_sb; | |
191 | ||
192 | list_for_each_entry(devlink_sb, &devlink->sb_list, list) { | |
193 | if (devlink_sb->index == sb_index) | |
194 | return devlink_sb; | |
195 | } | |
196 | return NULL; | |
197 | } | |
198 | ||
199 | static bool devlink_sb_index_exists(struct devlink *devlink, | |
200 | unsigned int sb_index) | |
201 | { | |
202 | return devlink_sb_get_by_index(devlink, sb_index); | |
203 | } | |
204 | ||
205 | static struct devlink_sb *devlink_sb_get_from_attrs(struct devlink *devlink, | |
206 | struct nlattr **attrs) | |
207 | { | |
208 | if (attrs[DEVLINK_ATTR_SB_INDEX]) { | |
209 | u32 sb_index = nla_get_u32(attrs[DEVLINK_ATTR_SB_INDEX]); | |
210 | struct devlink_sb *devlink_sb; | |
211 | ||
212 | devlink_sb = devlink_sb_get_by_index(devlink, sb_index); | |
213 | if (!devlink_sb) | |
214 | return ERR_PTR(-ENODEV); | |
215 | return devlink_sb; | |
216 | } | |
217 | return ERR_PTR(-EINVAL); | |
218 | } | |
219 | ||
220 | static struct devlink_sb *devlink_sb_get_from_info(struct devlink *devlink, | |
221 | struct genl_info *info) | |
222 | { | |
223 | return devlink_sb_get_from_attrs(devlink, info->attrs); | |
224 | } | |
225 | ||
226 | static int devlink_sb_pool_index_get_from_attrs(struct devlink_sb *devlink_sb, | |
227 | struct nlattr **attrs, | |
228 | u16 *p_pool_index) | |
229 | { | |
230 | u16 val; | |
231 | ||
232 | if (!attrs[DEVLINK_ATTR_SB_POOL_INDEX]) | |
233 | return -EINVAL; | |
234 | ||
235 | val = nla_get_u16(attrs[DEVLINK_ATTR_SB_POOL_INDEX]); | |
236 | if (val >= devlink_sb_pool_count(devlink_sb)) | |
237 | return -EINVAL; | |
238 | *p_pool_index = val; | |
239 | return 0; | |
240 | } | |
241 | ||
242 | static int devlink_sb_pool_index_get_from_info(struct devlink_sb *devlink_sb, | |
243 | struct genl_info *info, | |
244 | u16 *p_pool_index) | |
245 | { | |
246 | return devlink_sb_pool_index_get_from_attrs(devlink_sb, info->attrs, | |
247 | p_pool_index); | |
248 | } | |
249 | ||
250 | static int | |
251 | devlink_sb_pool_type_get_from_attrs(struct nlattr **attrs, | |
252 | enum devlink_sb_pool_type *p_pool_type) | |
253 | { | |
254 | u8 val; | |
255 | ||
256 | if (!attrs[DEVLINK_ATTR_SB_POOL_TYPE]) | |
257 | return -EINVAL; | |
258 | ||
259 | val = nla_get_u8(attrs[DEVLINK_ATTR_SB_POOL_TYPE]); | |
260 | if (val != DEVLINK_SB_POOL_TYPE_INGRESS && | |
261 | val != DEVLINK_SB_POOL_TYPE_EGRESS) | |
262 | return -EINVAL; | |
263 | *p_pool_type = val; | |
264 | return 0; | |
265 | } | |
266 | ||
267 | static int | |
268 | devlink_sb_pool_type_get_from_info(struct genl_info *info, | |
269 | enum devlink_sb_pool_type *p_pool_type) | |
270 | { | |
271 | return devlink_sb_pool_type_get_from_attrs(info->attrs, p_pool_type); | |
272 | } | |
273 | ||
274 | static int | |
275 | devlink_sb_th_type_get_from_attrs(struct nlattr **attrs, | |
276 | enum devlink_sb_threshold_type *p_th_type) | |
277 | { | |
278 | u8 val; | |
279 | ||
280 | if (!attrs[DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE]) | |
281 | return -EINVAL; | |
282 | ||
283 | val = nla_get_u8(attrs[DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE]); | |
284 | if (val != DEVLINK_SB_THRESHOLD_TYPE_STATIC && | |
285 | val != DEVLINK_SB_THRESHOLD_TYPE_DYNAMIC) | |
286 | return -EINVAL; | |
287 | *p_th_type = val; | |
288 | return 0; | |
289 | } | |
290 | ||
291 | static int | |
292 | devlink_sb_th_type_get_from_info(struct genl_info *info, | |
293 | enum devlink_sb_threshold_type *p_th_type) | |
294 | { | |
295 | return devlink_sb_th_type_get_from_attrs(info->attrs, p_th_type); | |
296 | } | |
297 | ||
298 | static int | |
299 | devlink_sb_tc_index_get_from_attrs(struct devlink_sb *devlink_sb, | |
300 | struct nlattr **attrs, | |
301 | enum devlink_sb_pool_type pool_type, | |
302 | u16 *p_tc_index) | |
303 | { | |
304 | u16 val; | |
305 | ||
306 | if (!attrs[DEVLINK_ATTR_SB_TC_INDEX]) | |
307 | return -EINVAL; | |
308 | ||
309 | val = nla_get_u16(attrs[DEVLINK_ATTR_SB_TC_INDEX]); | |
310 | if (pool_type == DEVLINK_SB_POOL_TYPE_INGRESS && | |
311 | val >= devlink_sb->ingress_tc_count) | |
312 | return -EINVAL; | |
313 | if (pool_type == DEVLINK_SB_POOL_TYPE_EGRESS && | |
314 | val >= devlink_sb->egress_tc_count) | |
315 | return -EINVAL; | |
316 | *p_tc_index = val; | |
317 | return 0; | |
318 | } | |
319 | ||
320 | static int | |
321 | devlink_sb_tc_index_get_from_info(struct devlink_sb *devlink_sb, | |
322 | struct genl_info *info, | |
323 | enum devlink_sb_pool_type pool_type, | |
324 | u16 *p_tc_index) | |
325 | { | |
326 | return devlink_sb_tc_index_get_from_attrs(devlink_sb, info->attrs, | |
327 | pool_type, p_tc_index); | |
328 | } | |
329 | ||
b16ebe92 AV |
330 | struct devlink_region { |
331 | struct devlink *devlink; | |
332 | struct list_head list; | |
333 | const char *name; | |
334 | struct list_head snapshot_list; | |
335 | u32 max_snapshots; | |
336 | u32 cur_snapshots; | |
337 | u64 size; | |
338 | }; | |
339 | ||
d7e52722 AV |
340 | struct devlink_snapshot { |
341 | struct list_head list; | |
342 | struct devlink_region *region; | |
343 | devlink_snapshot_data_dest_t *data_destructor; | |
344 | u64 data_len; | |
345 | u8 *data; | |
346 | u32 id; | |
347 | }; | |
348 | ||
b16ebe92 AV |
349 | static struct devlink_region * |
350 | devlink_region_get_by_name(struct devlink *devlink, const char *region_name) | |
351 | { | |
352 | struct devlink_region *region; | |
353 | ||
354 | list_for_each_entry(region, &devlink->region_list, list) | |
355 | if (!strcmp(region->name, region_name)) | |
356 | return region; | |
357 | ||
358 | return NULL; | |
359 | } | |
360 | ||
d7e52722 AV |
361 | static struct devlink_snapshot * |
362 | devlink_region_snapshot_get_by_id(struct devlink_region *region, u32 id) | |
363 | { | |
364 | struct devlink_snapshot *snapshot; | |
365 | ||
366 | list_for_each_entry(snapshot, ®ion->snapshot_list, list) | |
367 | if (snapshot->id == id) | |
368 | return snapshot; | |
369 | ||
370 | return NULL; | |
371 | } | |
372 | ||
373 | static void devlink_region_snapshot_del(struct devlink_snapshot *snapshot) | |
374 | { | |
375 | snapshot->region->cur_snapshots--; | |
376 | list_del(&snapshot->list); | |
377 | (*snapshot->data_destructor)(snapshot->data); | |
378 | kfree(snapshot); | |
379 | } | |
380 | ||
1fc2257e JP |
381 | #define DEVLINK_NL_FLAG_NEED_DEVLINK BIT(0) |
382 | #define DEVLINK_NL_FLAG_NEED_PORT BIT(1) | |
bf797471 | 383 | #define DEVLINK_NL_FLAG_NEED_SB BIT(2) |
2406e7e5 AS |
384 | |
385 | /* The per devlink instance lock is taken by default in the pre-doit | |
386 | * operation, yet several commands do not require this. The global | |
387 | * devlink lock is taken and protects from disruption by user-calls. | |
388 | */ | |
389 | #define DEVLINK_NL_FLAG_NO_LOCK BIT(3) | |
bfcd3a46 JP |
390 | |
391 | static int devlink_nl_pre_doit(const struct genl_ops *ops, | |
392 | struct sk_buff *skb, struct genl_info *info) | |
393 | { | |
394 | struct devlink *devlink; | |
2406e7e5 | 395 | int err; |
bfcd3a46 JP |
396 | |
397 | mutex_lock(&devlink_mutex); | |
398 | devlink = devlink_get_from_info(info); | |
399 | if (IS_ERR(devlink)) { | |
400 | mutex_unlock(&devlink_mutex); | |
401 | return PTR_ERR(devlink); | |
402 | } | |
2406e7e5 AS |
403 | if (~ops->internal_flags & DEVLINK_NL_FLAG_NO_LOCK) |
404 | mutex_lock(&devlink->lock); | |
1fc2257e JP |
405 | if (ops->internal_flags & DEVLINK_NL_FLAG_NEED_DEVLINK) { |
406 | info->user_ptr[0] = devlink; | |
407 | } else if (ops->internal_flags & DEVLINK_NL_FLAG_NEED_PORT) { | |
bfcd3a46 JP |
408 | struct devlink_port *devlink_port; |
409 | ||
bfcd3a46 JP |
410 | devlink_port = devlink_port_get_from_info(devlink, info); |
411 | if (IS_ERR(devlink_port)) { | |
2406e7e5 AS |
412 | err = PTR_ERR(devlink_port); |
413 | goto unlock; | |
bfcd3a46 | 414 | } |
1fc2257e | 415 | info->user_ptr[0] = devlink_port; |
bfcd3a46 | 416 | } |
bf797471 JP |
417 | if (ops->internal_flags & DEVLINK_NL_FLAG_NEED_SB) { |
418 | struct devlink_sb *devlink_sb; | |
419 | ||
420 | devlink_sb = devlink_sb_get_from_info(devlink, info); | |
421 | if (IS_ERR(devlink_sb)) { | |
2406e7e5 AS |
422 | err = PTR_ERR(devlink_sb); |
423 | goto unlock; | |
bf797471 JP |
424 | } |
425 | info->user_ptr[1] = devlink_sb; | |
426 | } | |
bfcd3a46 | 427 | return 0; |
2406e7e5 AS |
428 | |
429 | unlock: | |
430 | if (~ops->internal_flags & DEVLINK_NL_FLAG_NO_LOCK) | |
431 | mutex_unlock(&devlink->lock); | |
432 | mutex_unlock(&devlink_mutex); | |
433 | return err; | |
bfcd3a46 JP |
434 | } |
435 | ||
436 | static void devlink_nl_post_doit(const struct genl_ops *ops, | |
437 | struct sk_buff *skb, struct genl_info *info) | |
438 | { | |
2406e7e5 AS |
439 | struct devlink *devlink; |
440 | ||
441 | devlink = devlink_get_from_info(info); | |
442 | if (~ops->internal_flags & DEVLINK_NL_FLAG_NO_LOCK) | |
443 | mutex_unlock(&devlink->lock); | |
bfcd3a46 JP |
444 | mutex_unlock(&devlink_mutex); |
445 | } | |
446 | ||
489111e5 | 447 | static struct genl_family devlink_nl_family; |
bfcd3a46 JP |
448 | |
449 | enum devlink_multicast_groups { | |
450 | DEVLINK_MCGRP_CONFIG, | |
451 | }; | |
452 | ||
453 | static const struct genl_multicast_group devlink_nl_mcgrps[] = { | |
454 | [DEVLINK_MCGRP_CONFIG] = { .name = DEVLINK_GENL_MCGRP_CONFIG_NAME }, | |
455 | }; | |
456 | ||
457 | static int devlink_nl_put_handle(struct sk_buff *msg, struct devlink *devlink) | |
458 | { | |
459 | if (nla_put_string(msg, DEVLINK_ATTR_BUS_NAME, devlink->dev->bus->name)) | |
460 | return -EMSGSIZE; | |
461 | if (nla_put_string(msg, DEVLINK_ATTR_DEV_NAME, dev_name(devlink->dev))) | |
462 | return -EMSGSIZE; | |
463 | return 0; | |
464 | } | |
465 | ||
466 | static int devlink_nl_fill(struct sk_buff *msg, struct devlink *devlink, | |
467 | enum devlink_command cmd, u32 portid, | |
468 | u32 seq, int flags) | |
469 | { | |
470 | void *hdr; | |
471 | ||
472 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
473 | if (!hdr) | |
474 | return -EMSGSIZE; | |
475 | ||
476 | if (devlink_nl_put_handle(msg, devlink)) | |
477 | goto nla_put_failure; | |
478 | ||
479 | genlmsg_end(msg, hdr); | |
480 | return 0; | |
481 | ||
482 | nla_put_failure: | |
483 | genlmsg_cancel(msg, hdr); | |
484 | return -EMSGSIZE; | |
485 | } | |
486 | ||
487 | static void devlink_notify(struct devlink *devlink, enum devlink_command cmd) | |
488 | { | |
489 | struct sk_buff *msg; | |
490 | int err; | |
491 | ||
492 | WARN_ON(cmd != DEVLINK_CMD_NEW && cmd != DEVLINK_CMD_DEL); | |
493 | ||
494 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
495 | if (!msg) | |
496 | return; | |
497 | ||
498 | err = devlink_nl_fill(msg, devlink, cmd, 0, 0, 0); | |
499 | if (err) { | |
500 | nlmsg_free(msg); | |
501 | return; | |
502 | } | |
503 | ||
504 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), | |
505 | msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
506 | } | |
507 | ||
b9ffcbaf JP |
508 | static int devlink_nl_port_attrs_put(struct sk_buff *msg, |
509 | struct devlink_port *devlink_port) | |
510 | { | |
511 | struct devlink_port_attrs *attrs = &devlink_port->attrs; | |
512 | ||
513 | if (!attrs->set) | |
514 | return 0; | |
5ec1380a JP |
515 | if (nla_put_u16(msg, DEVLINK_ATTR_PORT_FLAVOUR, attrs->flavour)) |
516 | return -EMSGSIZE; | |
b9ffcbaf JP |
517 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_NUMBER, attrs->port_number)) |
518 | return -EMSGSIZE; | |
519 | if (!attrs->split) | |
520 | return 0; | |
521 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_SPLIT_GROUP, attrs->port_number)) | |
522 | return -EMSGSIZE; | |
523 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_SPLIT_SUBPORT_NUMBER, | |
524 | attrs->split_subport_number)) | |
525 | return -EMSGSIZE; | |
526 | return 0; | |
527 | } | |
528 | ||
bfcd3a46 JP |
529 | static int devlink_nl_port_fill(struct sk_buff *msg, struct devlink *devlink, |
530 | struct devlink_port *devlink_port, | |
531 | enum devlink_command cmd, u32 portid, | |
532 | u32 seq, int flags) | |
533 | { | |
534 | void *hdr; | |
535 | ||
536 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
537 | if (!hdr) | |
538 | return -EMSGSIZE; | |
539 | ||
540 | if (devlink_nl_put_handle(msg, devlink)) | |
541 | goto nla_put_failure; | |
542 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, devlink_port->index)) | |
543 | goto nla_put_failure; | |
544 | if (nla_put_u16(msg, DEVLINK_ATTR_PORT_TYPE, devlink_port->type)) | |
545 | goto nla_put_failure; | |
546 | if (devlink_port->desired_type != DEVLINK_PORT_TYPE_NOTSET && | |
547 | nla_put_u16(msg, DEVLINK_ATTR_PORT_DESIRED_TYPE, | |
548 | devlink_port->desired_type)) | |
549 | goto nla_put_failure; | |
550 | if (devlink_port->type == DEVLINK_PORT_TYPE_ETH) { | |
551 | struct net_device *netdev = devlink_port->type_dev; | |
552 | ||
553 | if (netdev && | |
554 | (nla_put_u32(msg, DEVLINK_ATTR_PORT_NETDEV_IFINDEX, | |
555 | netdev->ifindex) || | |
556 | nla_put_string(msg, DEVLINK_ATTR_PORT_NETDEV_NAME, | |
557 | netdev->name))) | |
558 | goto nla_put_failure; | |
559 | } | |
560 | if (devlink_port->type == DEVLINK_PORT_TYPE_IB) { | |
561 | struct ib_device *ibdev = devlink_port->type_dev; | |
562 | ||
563 | if (ibdev && | |
564 | nla_put_string(msg, DEVLINK_ATTR_PORT_IBDEV_NAME, | |
565 | ibdev->name)) | |
566 | goto nla_put_failure; | |
567 | } | |
b9ffcbaf | 568 | if (devlink_nl_port_attrs_put(msg, devlink_port)) |
bfcd3a46 JP |
569 | goto nla_put_failure; |
570 | ||
571 | genlmsg_end(msg, hdr); | |
572 | return 0; | |
573 | ||
574 | nla_put_failure: | |
575 | genlmsg_cancel(msg, hdr); | |
576 | return -EMSGSIZE; | |
577 | } | |
578 | ||
579 | static void devlink_port_notify(struct devlink_port *devlink_port, | |
580 | enum devlink_command cmd) | |
581 | { | |
582 | struct devlink *devlink = devlink_port->devlink; | |
583 | struct sk_buff *msg; | |
584 | int err; | |
585 | ||
586 | if (!devlink_port->registered) | |
587 | return; | |
588 | ||
589 | WARN_ON(cmd != DEVLINK_CMD_PORT_NEW && cmd != DEVLINK_CMD_PORT_DEL); | |
590 | ||
591 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
592 | if (!msg) | |
593 | return; | |
594 | ||
595 | err = devlink_nl_port_fill(msg, devlink, devlink_port, cmd, 0, 0, 0); | |
596 | if (err) { | |
597 | nlmsg_free(msg); | |
598 | return; | |
599 | } | |
600 | ||
601 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), | |
602 | msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
603 | } | |
604 | ||
605 | static int devlink_nl_cmd_get_doit(struct sk_buff *skb, struct genl_info *info) | |
606 | { | |
607 | struct devlink *devlink = info->user_ptr[0]; | |
608 | struct sk_buff *msg; | |
609 | int err; | |
610 | ||
611 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
612 | if (!msg) | |
613 | return -ENOMEM; | |
614 | ||
615 | err = devlink_nl_fill(msg, devlink, DEVLINK_CMD_NEW, | |
616 | info->snd_portid, info->snd_seq, 0); | |
617 | if (err) { | |
618 | nlmsg_free(msg); | |
619 | return err; | |
620 | } | |
621 | ||
622 | return genlmsg_reply(msg, info); | |
623 | } | |
624 | ||
625 | static int devlink_nl_cmd_get_dumpit(struct sk_buff *msg, | |
626 | struct netlink_callback *cb) | |
627 | { | |
628 | struct devlink *devlink; | |
629 | int start = cb->args[0]; | |
630 | int idx = 0; | |
631 | int err; | |
632 | ||
633 | mutex_lock(&devlink_mutex); | |
634 | list_for_each_entry(devlink, &devlink_list, list) { | |
635 | if (!net_eq(devlink_net(devlink), sock_net(msg->sk))) | |
636 | continue; | |
637 | if (idx < start) { | |
638 | idx++; | |
639 | continue; | |
640 | } | |
641 | err = devlink_nl_fill(msg, devlink, DEVLINK_CMD_NEW, | |
642 | NETLINK_CB(cb->skb).portid, | |
643 | cb->nlh->nlmsg_seq, NLM_F_MULTI); | |
644 | if (err) | |
645 | goto out; | |
646 | idx++; | |
647 | } | |
648 | out: | |
649 | mutex_unlock(&devlink_mutex); | |
650 | ||
651 | cb->args[0] = idx; | |
652 | return msg->len; | |
653 | } | |
654 | ||
655 | static int devlink_nl_cmd_port_get_doit(struct sk_buff *skb, | |
656 | struct genl_info *info) | |
657 | { | |
1fc2257e JP |
658 | struct devlink_port *devlink_port = info->user_ptr[0]; |
659 | struct devlink *devlink = devlink_port->devlink; | |
bfcd3a46 JP |
660 | struct sk_buff *msg; |
661 | int err; | |
662 | ||
663 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
664 | if (!msg) | |
665 | return -ENOMEM; | |
666 | ||
667 | err = devlink_nl_port_fill(msg, devlink, devlink_port, | |
668 | DEVLINK_CMD_PORT_NEW, | |
669 | info->snd_portid, info->snd_seq, 0); | |
670 | if (err) { | |
671 | nlmsg_free(msg); | |
672 | return err; | |
673 | } | |
674 | ||
675 | return genlmsg_reply(msg, info); | |
676 | } | |
677 | ||
678 | static int devlink_nl_cmd_port_get_dumpit(struct sk_buff *msg, | |
679 | struct netlink_callback *cb) | |
680 | { | |
681 | struct devlink *devlink; | |
682 | struct devlink_port *devlink_port; | |
683 | int start = cb->args[0]; | |
684 | int idx = 0; | |
685 | int err; | |
686 | ||
687 | mutex_lock(&devlink_mutex); | |
bfcd3a46 JP |
688 | list_for_each_entry(devlink, &devlink_list, list) { |
689 | if (!net_eq(devlink_net(devlink), sock_net(msg->sk))) | |
690 | continue; | |
2406e7e5 | 691 | mutex_lock(&devlink->lock); |
bfcd3a46 JP |
692 | list_for_each_entry(devlink_port, &devlink->port_list, list) { |
693 | if (idx < start) { | |
694 | idx++; | |
695 | continue; | |
696 | } | |
697 | err = devlink_nl_port_fill(msg, devlink, devlink_port, | |
698 | DEVLINK_CMD_NEW, | |
699 | NETLINK_CB(cb->skb).portid, | |
700 | cb->nlh->nlmsg_seq, | |
701 | NLM_F_MULTI); | |
2406e7e5 AS |
702 | if (err) { |
703 | mutex_unlock(&devlink->lock); | |
bfcd3a46 | 704 | goto out; |
2406e7e5 | 705 | } |
bfcd3a46 JP |
706 | idx++; |
707 | } | |
2406e7e5 | 708 | mutex_unlock(&devlink->lock); |
bfcd3a46 JP |
709 | } |
710 | out: | |
bfcd3a46 JP |
711 | mutex_unlock(&devlink_mutex); |
712 | ||
713 | cb->args[0] = idx; | |
714 | return msg->len; | |
715 | } | |
716 | ||
717 | static int devlink_port_type_set(struct devlink *devlink, | |
718 | struct devlink_port *devlink_port, | |
719 | enum devlink_port_type port_type) | |
720 | ||
721 | { | |
722 | int err; | |
723 | ||
724 | if (devlink->ops && devlink->ops->port_type_set) { | |
725 | if (port_type == DEVLINK_PORT_TYPE_NOTSET) | |
726 | return -EINVAL; | |
6edf1017 ER |
727 | if (port_type == devlink_port->type) |
728 | return 0; | |
bfcd3a46 JP |
729 | err = devlink->ops->port_type_set(devlink_port, port_type); |
730 | if (err) | |
731 | return err; | |
732 | devlink_port->desired_type = port_type; | |
733 | devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_NEW); | |
734 | return 0; | |
735 | } | |
736 | return -EOPNOTSUPP; | |
737 | } | |
738 | ||
739 | static int devlink_nl_cmd_port_set_doit(struct sk_buff *skb, | |
740 | struct genl_info *info) | |
741 | { | |
1fc2257e JP |
742 | struct devlink_port *devlink_port = info->user_ptr[0]; |
743 | struct devlink *devlink = devlink_port->devlink; | |
bfcd3a46 JP |
744 | int err; |
745 | ||
746 | if (info->attrs[DEVLINK_ATTR_PORT_TYPE]) { | |
747 | enum devlink_port_type port_type; | |
748 | ||
749 | port_type = nla_get_u16(info->attrs[DEVLINK_ATTR_PORT_TYPE]); | |
750 | err = devlink_port_type_set(devlink, devlink_port, port_type); | |
751 | if (err) | |
752 | return err; | |
753 | } | |
754 | return 0; | |
755 | } | |
756 | ||
ac0fc8a1 DA |
757 | static int devlink_port_split(struct devlink *devlink, u32 port_index, |
758 | u32 count, struct netlink_ext_ack *extack) | |
bfcd3a46 JP |
759 | |
760 | { | |
761 | if (devlink->ops && devlink->ops->port_split) | |
ac0fc8a1 DA |
762 | return devlink->ops->port_split(devlink, port_index, count, |
763 | extack); | |
bfcd3a46 JP |
764 | return -EOPNOTSUPP; |
765 | } | |
766 | ||
767 | static int devlink_nl_cmd_port_split_doit(struct sk_buff *skb, | |
768 | struct genl_info *info) | |
769 | { | |
770 | struct devlink *devlink = info->user_ptr[0]; | |
771 | u32 port_index; | |
772 | u32 count; | |
773 | ||
774 | if (!info->attrs[DEVLINK_ATTR_PORT_INDEX] || | |
775 | !info->attrs[DEVLINK_ATTR_PORT_SPLIT_COUNT]) | |
776 | return -EINVAL; | |
777 | ||
778 | port_index = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_INDEX]); | |
779 | count = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_SPLIT_COUNT]); | |
ac0fc8a1 | 780 | return devlink_port_split(devlink, port_index, count, info->extack); |
bfcd3a46 JP |
781 | } |
782 | ||
ac0fc8a1 DA |
783 | static int devlink_port_unsplit(struct devlink *devlink, u32 port_index, |
784 | struct netlink_ext_ack *extack) | |
bfcd3a46 JP |
785 | |
786 | { | |
787 | if (devlink->ops && devlink->ops->port_unsplit) | |
ac0fc8a1 | 788 | return devlink->ops->port_unsplit(devlink, port_index, extack); |
bfcd3a46 JP |
789 | return -EOPNOTSUPP; |
790 | } | |
791 | ||
792 | static int devlink_nl_cmd_port_unsplit_doit(struct sk_buff *skb, | |
793 | struct genl_info *info) | |
794 | { | |
795 | struct devlink *devlink = info->user_ptr[0]; | |
796 | u32 port_index; | |
797 | ||
798 | if (!info->attrs[DEVLINK_ATTR_PORT_INDEX]) | |
799 | return -EINVAL; | |
800 | ||
801 | port_index = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_INDEX]); | |
ac0fc8a1 | 802 | return devlink_port_unsplit(devlink, port_index, info->extack); |
bfcd3a46 JP |
803 | } |
804 | ||
bf797471 JP |
805 | static int devlink_nl_sb_fill(struct sk_buff *msg, struct devlink *devlink, |
806 | struct devlink_sb *devlink_sb, | |
807 | enum devlink_command cmd, u32 portid, | |
808 | u32 seq, int flags) | |
809 | { | |
810 | void *hdr; | |
811 | ||
812 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
813 | if (!hdr) | |
814 | return -EMSGSIZE; | |
815 | ||
816 | if (devlink_nl_put_handle(msg, devlink)) | |
817 | goto nla_put_failure; | |
818 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_INDEX, devlink_sb->index)) | |
819 | goto nla_put_failure; | |
820 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_SIZE, devlink_sb->size)) | |
821 | goto nla_put_failure; | |
822 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_INGRESS_POOL_COUNT, | |
823 | devlink_sb->ingress_pools_count)) | |
824 | goto nla_put_failure; | |
825 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_EGRESS_POOL_COUNT, | |
826 | devlink_sb->egress_pools_count)) | |
827 | goto nla_put_failure; | |
828 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_INGRESS_TC_COUNT, | |
829 | devlink_sb->ingress_tc_count)) | |
830 | goto nla_put_failure; | |
831 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_EGRESS_TC_COUNT, | |
832 | devlink_sb->egress_tc_count)) | |
833 | goto nla_put_failure; | |
834 | ||
835 | genlmsg_end(msg, hdr); | |
836 | return 0; | |
837 | ||
838 | nla_put_failure: | |
839 | genlmsg_cancel(msg, hdr); | |
840 | return -EMSGSIZE; | |
841 | } | |
842 | ||
843 | static int devlink_nl_cmd_sb_get_doit(struct sk_buff *skb, | |
844 | struct genl_info *info) | |
845 | { | |
846 | struct devlink *devlink = info->user_ptr[0]; | |
847 | struct devlink_sb *devlink_sb = info->user_ptr[1]; | |
848 | struct sk_buff *msg; | |
849 | int err; | |
850 | ||
851 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
852 | if (!msg) | |
853 | return -ENOMEM; | |
854 | ||
855 | err = devlink_nl_sb_fill(msg, devlink, devlink_sb, | |
856 | DEVLINK_CMD_SB_NEW, | |
857 | info->snd_portid, info->snd_seq, 0); | |
858 | if (err) { | |
859 | nlmsg_free(msg); | |
860 | return err; | |
861 | } | |
862 | ||
863 | return genlmsg_reply(msg, info); | |
864 | } | |
865 | ||
866 | static int devlink_nl_cmd_sb_get_dumpit(struct sk_buff *msg, | |
867 | struct netlink_callback *cb) | |
868 | { | |
869 | struct devlink *devlink; | |
870 | struct devlink_sb *devlink_sb; | |
871 | int start = cb->args[0]; | |
872 | int idx = 0; | |
873 | int err; | |
874 | ||
875 | mutex_lock(&devlink_mutex); | |
876 | list_for_each_entry(devlink, &devlink_list, list) { | |
877 | if (!net_eq(devlink_net(devlink), sock_net(msg->sk))) | |
878 | continue; | |
2406e7e5 | 879 | mutex_lock(&devlink->lock); |
bf797471 JP |
880 | list_for_each_entry(devlink_sb, &devlink->sb_list, list) { |
881 | if (idx < start) { | |
882 | idx++; | |
883 | continue; | |
884 | } | |
885 | err = devlink_nl_sb_fill(msg, devlink, devlink_sb, | |
886 | DEVLINK_CMD_SB_NEW, | |
887 | NETLINK_CB(cb->skb).portid, | |
888 | cb->nlh->nlmsg_seq, | |
889 | NLM_F_MULTI); | |
2406e7e5 AS |
890 | if (err) { |
891 | mutex_unlock(&devlink->lock); | |
bf797471 | 892 | goto out; |
2406e7e5 | 893 | } |
bf797471 JP |
894 | idx++; |
895 | } | |
2406e7e5 | 896 | mutex_unlock(&devlink->lock); |
bf797471 JP |
897 | } |
898 | out: | |
899 | mutex_unlock(&devlink_mutex); | |
900 | ||
901 | cb->args[0] = idx; | |
902 | return msg->len; | |
903 | } | |
904 | ||
905 | static int devlink_nl_sb_pool_fill(struct sk_buff *msg, struct devlink *devlink, | |
906 | struct devlink_sb *devlink_sb, | |
907 | u16 pool_index, enum devlink_command cmd, | |
908 | u32 portid, u32 seq, int flags) | |
909 | { | |
910 | struct devlink_sb_pool_info pool_info; | |
911 | void *hdr; | |
912 | int err; | |
913 | ||
914 | err = devlink->ops->sb_pool_get(devlink, devlink_sb->index, | |
915 | pool_index, &pool_info); | |
916 | if (err) | |
917 | return err; | |
918 | ||
919 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
920 | if (!hdr) | |
921 | return -EMSGSIZE; | |
922 | ||
923 | if (devlink_nl_put_handle(msg, devlink)) | |
924 | goto nla_put_failure; | |
925 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_INDEX, devlink_sb->index)) | |
926 | goto nla_put_failure; | |
927 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_POOL_INDEX, pool_index)) | |
928 | goto nla_put_failure; | |
929 | if (nla_put_u8(msg, DEVLINK_ATTR_SB_POOL_TYPE, pool_info.pool_type)) | |
930 | goto nla_put_failure; | |
931 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_POOL_SIZE, pool_info.size)) | |
932 | goto nla_put_failure; | |
933 | if (nla_put_u8(msg, DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE, | |
934 | pool_info.threshold_type)) | |
935 | goto nla_put_failure; | |
bff5731d JK |
936 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_POOL_CELL_SIZE, |
937 | pool_info.cell_size)) | |
938 | goto nla_put_failure; | |
bf797471 JP |
939 | |
940 | genlmsg_end(msg, hdr); | |
941 | return 0; | |
942 | ||
943 | nla_put_failure: | |
944 | genlmsg_cancel(msg, hdr); | |
945 | return -EMSGSIZE; | |
946 | } | |
947 | ||
948 | static int devlink_nl_cmd_sb_pool_get_doit(struct sk_buff *skb, | |
949 | struct genl_info *info) | |
950 | { | |
951 | struct devlink *devlink = info->user_ptr[0]; | |
952 | struct devlink_sb *devlink_sb = info->user_ptr[1]; | |
953 | struct sk_buff *msg; | |
954 | u16 pool_index; | |
955 | int err; | |
956 | ||
957 | err = devlink_sb_pool_index_get_from_info(devlink_sb, info, | |
958 | &pool_index); | |
959 | if (err) | |
960 | return err; | |
961 | ||
962 | if (!devlink->ops || !devlink->ops->sb_pool_get) | |
963 | return -EOPNOTSUPP; | |
964 | ||
965 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
966 | if (!msg) | |
967 | return -ENOMEM; | |
968 | ||
969 | err = devlink_nl_sb_pool_fill(msg, devlink, devlink_sb, pool_index, | |
970 | DEVLINK_CMD_SB_POOL_NEW, | |
971 | info->snd_portid, info->snd_seq, 0); | |
972 | if (err) { | |
973 | nlmsg_free(msg); | |
974 | return err; | |
975 | } | |
976 | ||
977 | return genlmsg_reply(msg, info); | |
978 | } | |
979 | ||
980 | static int __sb_pool_get_dumpit(struct sk_buff *msg, int start, int *p_idx, | |
981 | struct devlink *devlink, | |
982 | struct devlink_sb *devlink_sb, | |
983 | u32 portid, u32 seq) | |
984 | { | |
985 | u16 pool_count = devlink_sb_pool_count(devlink_sb); | |
986 | u16 pool_index; | |
987 | int err; | |
988 | ||
989 | for (pool_index = 0; pool_index < pool_count; pool_index++) { | |
990 | if (*p_idx < start) { | |
991 | (*p_idx)++; | |
992 | continue; | |
993 | } | |
994 | err = devlink_nl_sb_pool_fill(msg, devlink, | |
995 | devlink_sb, | |
996 | pool_index, | |
997 | DEVLINK_CMD_SB_POOL_NEW, | |
998 | portid, seq, NLM_F_MULTI); | |
999 | if (err) | |
1000 | return err; | |
1001 | (*p_idx)++; | |
1002 | } | |
1003 | return 0; | |
1004 | } | |
1005 | ||
1006 | static int devlink_nl_cmd_sb_pool_get_dumpit(struct sk_buff *msg, | |
1007 | struct netlink_callback *cb) | |
1008 | { | |
1009 | struct devlink *devlink; | |
1010 | struct devlink_sb *devlink_sb; | |
1011 | int start = cb->args[0]; | |
1012 | int idx = 0; | |
1013 | int err; | |
1014 | ||
1015 | mutex_lock(&devlink_mutex); | |
1016 | list_for_each_entry(devlink, &devlink_list, list) { | |
1017 | if (!net_eq(devlink_net(devlink), sock_net(msg->sk)) || | |
1018 | !devlink->ops || !devlink->ops->sb_pool_get) | |
1019 | continue; | |
2406e7e5 | 1020 | mutex_lock(&devlink->lock); |
bf797471 JP |
1021 | list_for_each_entry(devlink_sb, &devlink->sb_list, list) { |
1022 | err = __sb_pool_get_dumpit(msg, start, &idx, devlink, | |
1023 | devlink_sb, | |
1024 | NETLINK_CB(cb->skb).portid, | |
1025 | cb->nlh->nlmsg_seq); | |
2406e7e5 AS |
1026 | if (err && err != -EOPNOTSUPP) { |
1027 | mutex_unlock(&devlink->lock); | |
bf797471 | 1028 | goto out; |
2406e7e5 | 1029 | } |
bf797471 | 1030 | } |
2406e7e5 | 1031 | mutex_unlock(&devlink->lock); |
bf797471 JP |
1032 | } |
1033 | out: | |
1034 | mutex_unlock(&devlink_mutex); | |
1035 | ||
1036 | cb->args[0] = idx; | |
1037 | return msg->len; | |
1038 | } | |
1039 | ||
1040 | static int devlink_sb_pool_set(struct devlink *devlink, unsigned int sb_index, | |
1041 | u16 pool_index, u32 size, | |
1042 | enum devlink_sb_threshold_type threshold_type) | |
1043 | ||
1044 | { | |
1045 | const struct devlink_ops *ops = devlink->ops; | |
1046 | ||
1047 | if (ops && ops->sb_pool_set) | |
1048 | return ops->sb_pool_set(devlink, sb_index, pool_index, | |
1049 | size, threshold_type); | |
1050 | return -EOPNOTSUPP; | |
1051 | } | |
1052 | ||
1053 | static int devlink_nl_cmd_sb_pool_set_doit(struct sk_buff *skb, | |
1054 | struct genl_info *info) | |
1055 | { | |
1056 | struct devlink *devlink = info->user_ptr[0]; | |
1057 | struct devlink_sb *devlink_sb = info->user_ptr[1]; | |
1058 | enum devlink_sb_threshold_type threshold_type; | |
1059 | u16 pool_index; | |
1060 | u32 size; | |
1061 | int err; | |
1062 | ||
1063 | err = devlink_sb_pool_index_get_from_info(devlink_sb, info, | |
1064 | &pool_index); | |
1065 | if (err) | |
1066 | return err; | |
1067 | ||
1068 | err = devlink_sb_th_type_get_from_info(info, &threshold_type); | |
1069 | if (err) | |
1070 | return err; | |
1071 | ||
1072 | if (!info->attrs[DEVLINK_ATTR_SB_POOL_SIZE]) | |
1073 | return -EINVAL; | |
1074 | ||
1075 | size = nla_get_u32(info->attrs[DEVLINK_ATTR_SB_POOL_SIZE]); | |
1076 | return devlink_sb_pool_set(devlink, devlink_sb->index, | |
1077 | pool_index, size, threshold_type); | |
1078 | } | |
1079 | ||
1080 | static int devlink_nl_sb_port_pool_fill(struct sk_buff *msg, | |
1081 | struct devlink *devlink, | |
1082 | struct devlink_port *devlink_port, | |
1083 | struct devlink_sb *devlink_sb, | |
1084 | u16 pool_index, | |
1085 | enum devlink_command cmd, | |
1086 | u32 portid, u32 seq, int flags) | |
1087 | { | |
df38dafd | 1088 | const struct devlink_ops *ops = devlink->ops; |
bf797471 JP |
1089 | u32 threshold; |
1090 | void *hdr; | |
1091 | int err; | |
1092 | ||
df38dafd JP |
1093 | err = ops->sb_port_pool_get(devlink_port, devlink_sb->index, |
1094 | pool_index, &threshold); | |
bf797471 JP |
1095 | if (err) |
1096 | return err; | |
1097 | ||
1098 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
1099 | if (!hdr) | |
1100 | return -EMSGSIZE; | |
1101 | ||
1102 | if (devlink_nl_put_handle(msg, devlink)) | |
1103 | goto nla_put_failure; | |
1104 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, devlink_port->index)) | |
1105 | goto nla_put_failure; | |
1106 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_INDEX, devlink_sb->index)) | |
1107 | goto nla_put_failure; | |
1108 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_POOL_INDEX, pool_index)) | |
1109 | goto nla_put_failure; | |
1110 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_THRESHOLD, threshold)) | |
1111 | goto nla_put_failure; | |
1112 | ||
df38dafd JP |
1113 | if (ops->sb_occ_port_pool_get) { |
1114 | u32 cur; | |
1115 | u32 max; | |
1116 | ||
1117 | err = ops->sb_occ_port_pool_get(devlink_port, devlink_sb->index, | |
1118 | pool_index, &cur, &max); | |
1119 | if (err && err != -EOPNOTSUPP) | |
1120 | return err; | |
1121 | if (!err) { | |
1122 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_OCC_CUR, cur)) | |
1123 | goto nla_put_failure; | |
1124 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_OCC_MAX, max)) | |
1125 | goto nla_put_failure; | |
1126 | } | |
1127 | } | |
1128 | ||
bf797471 JP |
1129 | genlmsg_end(msg, hdr); |
1130 | return 0; | |
1131 | ||
1132 | nla_put_failure: | |
1133 | genlmsg_cancel(msg, hdr); | |
1134 | return -EMSGSIZE; | |
1135 | } | |
1136 | ||
1137 | static int devlink_nl_cmd_sb_port_pool_get_doit(struct sk_buff *skb, | |
1138 | struct genl_info *info) | |
1139 | { | |
1140 | struct devlink_port *devlink_port = info->user_ptr[0]; | |
1141 | struct devlink *devlink = devlink_port->devlink; | |
1142 | struct devlink_sb *devlink_sb = info->user_ptr[1]; | |
1143 | struct sk_buff *msg; | |
1144 | u16 pool_index; | |
1145 | int err; | |
1146 | ||
1147 | err = devlink_sb_pool_index_get_from_info(devlink_sb, info, | |
1148 | &pool_index); | |
1149 | if (err) | |
1150 | return err; | |
1151 | ||
1152 | if (!devlink->ops || !devlink->ops->sb_port_pool_get) | |
1153 | return -EOPNOTSUPP; | |
1154 | ||
1155 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
1156 | if (!msg) | |
1157 | return -ENOMEM; | |
1158 | ||
1159 | err = devlink_nl_sb_port_pool_fill(msg, devlink, devlink_port, | |
1160 | devlink_sb, pool_index, | |
1161 | DEVLINK_CMD_SB_PORT_POOL_NEW, | |
1162 | info->snd_portid, info->snd_seq, 0); | |
1163 | if (err) { | |
1164 | nlmsg_free(msg); | |
1165 | return err; | |
1166 | } | |
1167 | ||
1168 | return genlmsg_reply(msg, info); | |
1169 | } | |
1170 | ||
1171 | static int __sb_port_pool_get_dumpit(struct sk_buff *msg, int start, int *p_idx, | |
1172 | struct devlink *devlink, | |
1173 | struct devlink_sb *devlink_sb, | |
1174 | u32 portid, u32 seq) | |
1175 | { | |
1176 | struct devlink_port *devlink_port; | |
1177 | u16 pool_count = devlink_sb_pool_count(devlink_sb); | |
1178 | u16 pool_index; | |
1179 | int err; | |
1180 | ||
1181 | list_for_each_entry(devlink_port, &devlink->port_list, list) { | |
1182 | for (pool_index = 0; pool_index < pool_count; pool_index++) { | |
1183 | if (*p_idx < start) { | |
1184 | (*p_idx)++; | |
1185 | continue; | |
1186 | } | |
1187 | err = devlink_nl_sb_port_pool_fill(msg, devlink, | |
1188 | devlink_port, | |
1189 | devlink_sb, | |
1190 | pool_index, | |
1191 | DEVLINK_CMD_SB_PORT_POOL_NEW, | |
1192 | portid, seq, | |
1193 | NLM_F_MULTI); | |
1194 | if (err) | |
1195 | return err; | |
1196 | (*p_idx)++; | |
1197 | } | |
1198 | } | |
1199 | return 0; | |
1200 | } | |
1201 | ||
1202 | static int devlink_nl_cmd_sb_port_pool_get_dumpit(struct sk_buff *msg, | |
1203 | struct netlink_callback *cb) | |
1204 | { | |
1205 | struct devlink *devlink; | |
1206 | struct devlink_sb *devlink_sb; | |
1207 | int start = cb->args[0]; | |
1208 | int idx = 0; | |
1209 | int err; | |
1210 | ||
1211 | mutex_lock(&devlink_mutex); | |
bf797471 JP |
1212 | list_for_each_entry(devlink, &devlink_list, list) { |
1213 | if (!net_eq(devlink_net(devlink), sock_net(msg->sk)) || | |
1214 | !devlink->ops || !devlink->ops->sb_port_pool_get) | |
1215 | continue; | |
2406e7e5 | 1216 | mutex_lock(&devlink->lock); |
bf797471 JP |
1217 | list_for_each_entry(devlink_sb, &devlink->sb_list, list) { |
1218 | err = __sb_port_pool_get_dumpit(msg, start, &idx, | |
1219 | devlink, devlink_sb, | |
1220 | NETLINK_CB(cb->skb).portid, | |
1221 | cb->nlh->nlmsg_seq); | |
2406e7e5 AS |
1222 | if (err && err != -EOPNOTSUPP) { |
1223 | mutex_unlock(&devlink->lock); | |
bf797471 | 1224 | goto out; |
2406e7e5 | 1225 | } |
bf797471 | 1226 | } |
2406e7e5 | 1227 | mutex_unlock(&devlink->lock); |
bf797471 JP |
1228 | } |
1229 | out: | |
bf797471 JP |
1230 | mutex_unlock(&devlink_mutex); |
1231 | ||
1232 | cb->args[0] = idx; | |
1233 | return msg->len; | |
1234 | } | |
1235 | ||
1236 | static int devlink_sb_port_pool_set(struct devlink_port *devlink_port, | |
1237 | unsigned int sb_index, u16 pool_index, | |
1238 | u32 threshold) | |
1239 | ||
1240 | { | |
1241 | const struct devlink_ops *ops = devlink_port->devlink->ops; | |
1242 | ||
1243 | if (ops && ops->sb_port_pool_set) | |
1244 | return ops->sb_port_pool_set(devlink_port, sb_index, | |
1245 | pool_index, threshold); | |
1246 | return -EOPNOTSUPP; | |
1247 | } | |
1248 | ||
1249 | static int devlink_nl_cmd_sb_port_pool_set_doit(struct sk_buff *skb, | |
1250 | struct genl_info *info) | |
1251 | { | |
1252 | struct devlink_port *devlink_port = info->user_ptr[0]; | |
1253 | struct devlink_sb *devlink_sb = info->user_ptr[1]; | |
1254 | u16 pool_index; | |
1255 | u32 threshold; | |
1256 | int err; | |
1257 | ||
1258 | err = devlink_sb_pool_index_get_from_info(devlink_sb, info, | |
1259 | &pool_index); | |
1260 | if (err) | |
1261 | return err; | |
1262 | ||
1263 | if (!info->attrs[DEVLINK_ATTR_SB_THRESHOLD]) | |
1264 | return -EINVAL; | |
1265 | ||
1266 | threshold = nla_get_u32(info->attrs[DEVLINK_ATTR_SB_THRESHOLD]); | |
1267 | return devlink_sb_port_pool_set(devlink_port, devlink_sb->index, | |
1268 | pool_index, threshold); | |
1269 | } | |
1270 | ||
1271 | static int | |
1272 | devlink_nl_sb_tc_pool_bind_fill(struct sk_buff *msg, struct devlink *devlink, | |
1273 | struct devlink_port *devlink_port, | |
1274 | struct devlink_sb *devlink_sb, u16 tc_index, | |
1275 | enum devlink_sb_pool_type pool_type, | |
1276 | enum devlink_command cmd, | |
1277 | u32 portid, u32 seq, int flags) | |
1278 | { | |
df38dafd | 1279 | const struct devlink_ops *ops = devlink->ops; |
bf797471 JP |
1280 | u16 pool_index; |
1281 | u32 threshold; | |
1282 | void *hdr; | |
1283 | int err; | |
1284 | ||
df38dafd JP |
1285 | err = ops->sb_tc_pool_bind_get(devlink_port, devlink_sb->index, |
1286 | tc_index, pool_type, | |
1287 | &pool_index, &threshold); | |
bf797471 JP |
1288 | if (err) |
1289 | return err; | |
1290 | ||
1291 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
1292 | if (!hdr) | |
1293 | return -EMSGSIZE; | |
1294 | ||
1295 | if (devlink_nl_put_handle(msg, devlink)) | |
1296 | goto nla_put_failure; | |
1297 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, devlink_port->index)) | |
1298 | goto nla_put_failure; | |
1299 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_INDEX, devlink_sb->index)) | |
1300 | goto nla_put_failure; | |
1301 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_TC_INDEX, tc_index)) | |
1302 | goto nla_put_failure; | |
1303 | if (nla_put_u8(msg, DEVLINK_ATTR_SB_POOL_TYPE, pool_type)) | |
1304 | goto nla_put_failure; | |
1305 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_POOL_INDEX, pool_index)) | |
1306 | goto nla_put_failure; | |
1307 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_THRESHOLD, threshold)) | |
1308 | goto nla_put_failure; | |
1309 | ||
df38dafd JP |
1310 | if (ops->sb_occ_tc_port_bind_get) { |
1311 | u32 cur; | |
1312 | u32 max; | |
1313 | ||
1314 | err = ops->sb_occ_tc_port_bind_get(devlink_port, | |
1315 | devlink_sb->index, | |
1316 | tc_index, pool_type, | |
1317 | &cur, &max); | |
1318 | if (err && err != -EOPNOTSUPP) | |
1319 | return err; | |
1320 | if (!err) { | |
1321 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_OCC_CUR, cur)) | |
1322 | goto nla_put_failure; | |
1323 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_OCC_MAX, max)) | |
1324 | goto nla_put_failure; | |
1325 | } | |
1326 | } | |
1327 | ||
bf797471 JP |
1328 | genlmsg_end(msg, hdr); |
1329 | return 0; | |
1330 | ||
1331 | nla_put_failure: | |
1332 | genlmsg_cancel(msg, hdr); | |
1333 | return -EMSGSIZE; | |
1334 | } | |
1335 | ||
1336 | static int devlink_nl_cmd_sb_tc_pool_bind_get_doit(struct sk_buff *skb, | |
1337 | struct genl_info *info) | |
1338 | { | |
1339 | struct devlink_port *devlink_port = info->user_ptr[0]; | |
1340 | struct devlink *devlink = devlink_port->devlink; | |
1341 | struct devlink_sb *devlink_sb = info->user_ptr[1]; | |
1342 | struct sk_buff *msg; | |
1343 | enum devlink_sb_pool_type pool_type; | |
1344 | u16 tc_index; | |
1345 | int err; | |
1346 | ||
1347 | err = devlink_sb_pool_type_get_from_info(info, &pool_type); | |
1348 | if (err) | |
1349 | return err; | |
1350 | ||
1351 | err = devlink_sb_tc_index_get_from_info(devlink_sb, info, | |
1352 | pool_type, &tc_index); | |
1353 | if (err) | |
1354 | return err; | |
1355 | ||
1356 | if (!devlink->ops || !devlink->ops->sb_tc_pool_bind_get) | |
1357 | return -EOPNOTSUPP; | |
1358 | ||
1359 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
1360 | if (!msg) | |
1361 | return -ENOMEM; | |
1362 | ||
1363 | err = devlink_nl_sb_tc_pool_bind_fill(msg, devlink, devlink_port, | |
1364 | devlink_sb, tc_index, pool_type, | |
1365 | DEVLINK_CMD_SB_TC_POOL_BIND_NEW, | |
1366 | info->snd_portid, | |
1367 | info->snd_seq, 0); | |
1368 | if (err) { | |
1369 | nlmsg_free(msg); | |
1370 | return err; | |
1371 | } | |
1372 | ||
1373 | return genlmsg_reply(msg, info); | |
1374 | } | |
1375 | ||
1376 | static int __sb_tc_pool_bind_get_dumpit(struct sk_buff *msg, | |
1377 | int start, int *p_idx, | |
1378 | struct devlink *devlink, | |
1379 | struct devlink_sb *devlink_sb, | |
1380 | u32 portid, u32 seq) | |
1381 | { | |
1382 | struct devlink_port *devlink_port; | |
1383 | u16 tc_index; | |
1384 | int err; | |
1385 | ||
1386 | list_for_each_entry(devlink_port, &devlink->port_list, list) { | |
1387 | for (tc_index = 0; | |
1388 | tc_index < devlink_sb->ingress_tc_count; tc_index++) { | |
1389 | if (*p_idx < start) { | |
1390 | (*p_idx)++; | |
1391 | continue; | |
1392 | } | |
1393 | err = devlink_nl_sb_tc_pool_bind_fill(msg, devlink, | |
1394 | devlink_port, | |
1395 | devlink_sb, | |
1396 | tc_index, | |
1397 | DEVLINK_SB_POOL_TYPE_INGRESS, | |
1398 | DEVLINK_CMD_SB_TC_POOL_BIND_NEW, | |
1399 | portid, seq, | |
1400 | NLM_F_MULTI); | |
1401 | if (err) | |
1402 | return err; | |
1403 | (*p_idx)++; | |
1404 | } | |
1405 | for (tc_index = 0; | |
1406 | tc_index < devlink_sb->egress_tc_count; tc_index++) { | |
1407 | if (*p_idx < start) { | |
1408 | (*p_idx)++; | |
1409 | continue; | |
1410 | } | |
1411 | err = devlink_nl_sb_tc_pool_bind_fill(msg, devlink, | |
1412 | devlink_port, | |
1413 | devlink_sb, | |
1414 | tc_index, | |
1415 | DEVLINK_SB_POOL_TYPE_EGRESS, | |
1416 | DEVLINK_CMD_SB_TC_POOL_BIND_NEW, | |
1417 | portid, seq, | |
1418 | NLM_F_MULTI); | |
1419 | if (err) | |
1420 | return err; | |
1421 | (*p_idx)++; | |
1422 | } | |
1423 | } | |
1424 | return 0; | |
1425 | } | |
1426 | ||
1427 | static int | |
1428 | devlink_nl_cmd_sb_tc_pool_bind_get_dumpit(struct sk_buff *msg, | |
1429 | struct netlink_callback *cb) | |
1430 | { | |
1431 | struct devlink *devlink; | |
1432 | struct devlink_sb *devlink_sb; | |
1433 | int start = cb->args[0]; | |
1434 | int idx = 0; | |
1435 | int err; | |
1436 | ||
1437 | mutex_lock(&devlink_mutex); | |
bf797471 JP |
1438 | list_for_each_entry(devlink, &devlink_list, list) { |
1439 | if (!net_eq(devlink_net(devlink), sock_net(msg->sk)) || | |
1440 | !devlink->ops || !devlink->ops->sb_tc_pool_bind_get) | |
1441 | continue; | |
2406e7e5 AS |
1442 | |
1443 | mutex_lock(&devlink->lock); | |
bf797471 JP |
1444 | list_for_each_entry(devlink_sb, &devlink->sb_list, list) { |
1445 | err = __sb_tc_pool_bind_get_dumpit(msg, start, &idx, | |
1446 | devlink, | |
1447 | devlink_sb, | |
1448 | NETLINK_CB(cb->skb).portid, | |
1449 | cb->nlh->nlmsg_seq); | |
2406e7e5 AS |
1450 | if (err && err != -EOPNOTSUPP) { |
1451 | mutex_unlock(&devlink->lock); | |
bf797471 | 1452 | goto out; |
2406e7e5 | 1453 | } |
bf797471 | 1454 | } |
2406e7e5 | 1455 | mutex_unlock(&devlink->lock); |
bf797471 JP |
1456 | } |
1457 | out: | |
bf797471 JP |
1458 | mutex_unlock(&devlink_mutex); |
1459 | ||
1460 | cb->args[0] = idx; | |
1461 | return msg->len; | |
1462 | } | |
1463 | ||
1464 | static int devlink_sb_tc_pool_bind_set(struct devlink_port *devlink_port, | |
1465 | unsigned int sb_index, u16 tc_index, | |
1466 | enum devlink_sb_pool_type pool_type, | |
1467 | u16 pool_index, u32 threshold) | |
1468 | ||
1469 | { | |
1470 | const struct devlink_ops *ops = devlink_port->devlink->ops; | |
1471 | ||
1472 | if (ops && ops->sb_tc_pool_bind_set) | |
1473 | return ops->sb_tc_pool_bind_set(devlink_port, sb_index, | |
1474 | tc_index, pool_type, | |
1475 | pool_index, threshold); | |
1476 | return -EOPNOTSUPP; | |
1477 | } | |
1478 | ||
1479 | static int devlink_nl_cmd_sb_tc_pool_bind_set_doit(struct sk_buff *skb, | |
1480 | struct genl_info *info) | |
1481 | { | |
1482 | struct devlink_port *devlink_port = info->user_ptr[0]; | |
1483 | struct devlink_sb *devlink_sb = info->user_ptr[1]; | |
1484 | enum devlink_sb_pool_type pool_type; | |
1485 | u16 tc_index; | |
1486 | u16 pool_index; | |
1487 | u32 threshold; | |
1488 | int err; | |
1489 | ||
1490 | err = devlink_sb_pool_type_get_from_info(info, &pool_type); | |
1491 | if (err) | |
1492 | return err; | |
1493 | ||
1494 | err = devlink_sb_tc_index_get_from_info(devlink_sb, info, | |
1495 | pool_type, &tc_index); | |
1496 | if (err) | |
1497 | return err; | |
1498 | ||
1499 | err = devlink_sb_pool_index_get_from_info(devlink_sb, info, | |
1500 | &pool_index); | |
1501 | if (err) | |
1502 | return err; | |
1503 | ||
1504 | if (!info->attrs[DEVLINK_ATTR_SB_THRESHOLD]) | |
1505 | return -EINVAL; | |
1506 | ||
1507 | threshold = nla_get_u32(info->attrs[DEVLINK_ATTR_SB_THRESHOLD]); | |
1508 | return devlink_sb_tc_pool_bind_set(devlink_port, devlink_sb->index, | |
1509 | tc_index, pool_type, | |
1510 | pool_index, threshold); | |
1511 | } | |
1512 | ||
df38dafd JP |
1513 | static int devlink_nl_cmd_sb_occ_snapshot_doit(struct sk_buff *skb, |
1514 | struct genl_info *info) | |
1515 | { | |
1516 | struct devlink *devlink = info->user_ptr[0]; | |
1517 | struct devlink_sb *devlink_sb = info->user_ptr[1]; | |
1518 | const struct devlink_ops *ops = devlink->ops; | |
1519 | ||
1520 | if (ops && ops->sb_occ_snapshot) | |
1521 | return ops->sb_occ_snapshot(devlink, devlink_sb->index); | |
1522 | return -EOPNOTSUPP; | |
1523 | } | |
1524 | ||
1525 | static int devlink_nl_cmd_sb_occ_max_clear_doit(struct sk_buff *skb, | |
1526 | struct genl_info *info) | |
1527 | { | |
1528 | struct devlink *devlink = info->user_ptr[0]; | |
1529 | struct devlink_sb *devlink_sb = info->user_ptr[1]; | |
1530 | const struct devlink_ops *ops = devlink->ops; | |
1531 | ||
1532 | if (ops && ops->sb_occ_max_clear) | |
1533 | return ops->sb_occ_max_clear(devlink, devlink_sb->index); | |
1534 | return -EOPNOTSUPP; | |
1535 | } | |
1536 | ||
21e3d2dd JP |
1537 | static int devlink_nl_eswitch_fill(struct sk_buff *msg, struct devlink *devlink, |
1538 | enum devlink_command cmd, u32 portid, | |
1539 | u32 seq, int flags) | |
08f4b591 | 1540 | { |
59bfde01 | 1541 | const struct devlink_ops *ops = devlink->ops; |
f43e9b06 | 1542 | u8 inline_mode, encap_mode; |
08f4b591 | 1543 | void *hdr; |
59bfde01 RD |
1544 | int err = 0; |
1545 | u16 mode; | |
08f4b591 OG |
1546 | |
1547 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
1548 | if (!hdr) | |
1549 | return -EMSGSIZE; | |
1550 | ||
59bfde01 RD |
1551 | err = devlink_nl_put_handle(msg, devlink); |
1552 | if (err) | |
1a6aa36b | 1553 | goto nla_put_failure; |
08f4b591 | 1554 | |
4456f61c JP |
1555 | if (ops->eswitch_mode_get) { |
1556 | err = ops->eswitch_mode_get(devlink, &mode); | |
1557 | if (err) | |
1558 | goto nla_put_failure; | |
1559 | err = nla_put_u16(msg, DEVLINK_ATTR_ESWITCH_MODE, mode); | |
1560 | if (err) | |
1561 | goto nla_put_failure; | |
1562 | } | |
59bfde01 RD |
1563 | |
1564 | if (ops->eswitch_inline_mode_get) { | |
1565 | err = ops->eswitch_inline_mode_get(devlink, &inline_mode); | |
1566 | if (err) | |
1a6aa36b | 1567 | goto nla_put_failure; |
59bfde01 RD |
1568 | err = nla_put_u8(msg, DEVLINK_ATTR_ESWITCH_INLINE_MODE, |
1569 | inline_mode); | |
1570 | if (err) | |
1a6aa36b | 1571 | goto nla_put_failure; |
59bfde01 | 1572 | } |
08f4b591 | 1573 | |
f43e9b06 RD |
1574 | if (ops->eswitch_encap_mode_get) { |
1575 | err = ops->eswitch_encap_mode_get(devlink, &encap_mode); | |
1576 | if (err) | |
1577 | goto nla_put_failure; | |
1578 | err = nla_put_u8(msg, DEVLINK_ATTR_ESWITCH_ENCAP_MODE, encap_mode); | |
1579 | if (err) | |
1580 | goto nla_put_failure; | |
1581 | } | |
1582 | ||
08f4b591 OG |
1583 | genlmsg_end(msg, hdr); |
1584 | return 0; | |
1585 | ||
1a6aa36b | 1586 | nla_put_failure: |
08f4b591 | 1587 | genlmsg_cancel(msg, hdr); |
59bfde01 | 1588 | return err; |
08f4b591 OG |
1589 | } |
1590 | ||
adf200f3 JP |
1591 | static int devlink_nl_cmd_eswitch_get_doit(struct sk_buff *skb, |
1592 | struct genl_info *info) | |
08f4b591 OG |
1593 | { |
1594 | struct devlink *devlink = info->user_ptr[0]; | |
1595 | const struct devlink_ops *ops = devlink->ops; | |
1596 | struct sk_buff *msg; | |
08f4b591 OG |
1597 | int err; |
1598 | ||
4456f61c | 1599 | if (!ops) |
08f4b591 OG |
1600 | return -EOPNOTSUPP; |
1601 | ||
08f4b591 OG |
1602 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
1603 | if (!msg) | |
1604 | return -ENOMEM; | |
1605 | ||
21e3d2dd JP |
1606 | err = devlink_nl_eswitch_fill(msg, devlink, DEVLINK_CMD_ESWITCH_GET, |
1607 | info->snd_portid, info->snd_seq, 0); | |
08f4b591 OG |
1608 | |
1609 | if (err) { | |
1610 | nlmsg_free(msg); | |
1611 | return err; | |
1612 | } | |
1613 | ||
1614 | return genlmsg_reply(msg, info); | |
1615 | } | |
1616 | ||
adf200f3 JP |
1617 | static int devlink_nl_cmd_eswitch_set_doit(struct sk_buff *skb, |
1618 | struct genl_info *info) | |
08f4b591 OG |
1619 | { |
1620 | struct devlink *devlink = info->user_ptr[0]; | |
1621 | const struct devlink_ops *ops = devlink->ops; | |
f43e9b06 | 1622 | u8 inline_mode, encap_mode; |
59bfde01 | 1623 | int err = 0; |
f43e9b06 | 1624 | u16 mode; |
08f4b591 | 1625 | |
59bfde01 RD |
1626 | if (!ops) |
1627 | return -EOPNOTSUPP; | |
08f4b591 | 1628 | |
59bfde01 RD |
1629 | if (info->attrs[DEVLINK_ATTR_ESWITCH_MODE]) { |
1630 | if (!ops->eswitch_mode_set) | |
1631 | return -EOPNOTSUPP; | |
1632 | mode = nla_get_u16(info->attrs[DEVLINK_ATTR_ESWITCH_MODE]); | |
db7ff19e | 1633 | err = ops->eswitch_mode_set(devlink, mode, info->extack); |
59bfde01 RD |
1634 | if (err) |
1635 | return err; | |
1636 | } | |
08f4b591 | 1637 | |
59bfde01 RD |
1638 | if (info->attrs[DEVLINK_ATTR_ESWITCH_INLINE_MODE]) { |
1639 | if (!ops->eswitch_inline_mode_set) | |
1640 | return -EOPNOTSUPP; | |
1641 | inline_mode = nla_get_u8( | |
1642 | info->attrs[DEVLINK_ATTR_ESWITCH_INLINE_MODE]); | |
db7ff19e EB |
1643 | err = ops->eswitch_inline_mode_set(devlink, inline_mode, |
1644 | info->extack); | |
59bfde01 RD |
1645 | if (err) |
1646 | return err; | |
1647 | } | |
f43e9b06 RD |
1648 | |
1649 | if (info->attrs[DEVLINK_ATTR_ESWITCH_ENCAP_MODE]) { | |
1650 | if (!ops->eswitch_encap_mode_set) | |
1651 | return -EOPNOTSUPP; | |
1652 | encap_mode = nla_get_u8(info->attrs[DEVLINK_ATTR_ESWITCH_ENCAP_MODE]); | |
db7ff19e EB |
1653 | err = ops->eswitch_encap_mode_set(devlink, encap_mode, |
1654 | info->extack); | |
f43e9b06 RD |
1655 | if (err) |
1656 | return err; | |
1657 | } | |
1658 | ||
1555d204 AS |
1659 | return 0; |
1660 | } | |
1661 | ||
1662 | int devlink_dpipe_match_put(struct sk_buff *skb, | |
1663 | struct devlink_dpipe_match *match) | |
1664 | { | |
1665 | struct devlink_dpipe_header *header = match->header; | |
1666 | struct devlink_dpipe_field *field = &header->fields[match->field_id]; | |
1667 | struct nlattr *match_attr; | |
1668 | ||
1669 | match_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_MATCH); | |
1670 | if (!match_attr) | |
1671 | return -EMSGSIZE; | |
1672 | ||
1673 | if (nla_put_u32(skb, DEVLINK_ATTR_DPIPE_MATCH_TYPE, match->type) || | |
1674 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_INDEX, match->header_index) || | |
1675 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_ID, header->id) || | |
1676 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_ID, field->id) || | |
1677 | nla_put_u8(skb, DEVLINK_ATTR_DPIPE_HEADER_GLOBAL, header->global)) | |
1678 | goto nla_put_failure; | |
1679 | ||
1680 | nla_nest_end(skb, match_attr); | |
1681 | return 0; | |
1682 | ||
1683 | nla_put_failure: | |
1684 | nla_nest_cancel(skb, match_attr); | |
1685 | return -EMSGSIZE; | |
1686 | } | |
1687 | EXPORT_SYMBOL_GPL(devlink_dpipe_match_put); | |
1688 | ||
1689 | static int devlink_dpipe_matches_put(struct devlink_dpipe_table *table, | |
1690 | struct sk_buff *skb) | |
1691 | { | |
1692 | struct nlattr *matches_attr; | |
1693 | ||
1694 | matches_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_TABLE_MATCHES); | |
1695 | if (!matches_attr) | |
1696 | return -EMSGSIZE; | |
1697 | ||
1698 | if (table->table_ops->matches_dump(table->priv, skb)) | |
1699 | goto nla_put_failure; | |
1700 | ||
1701 | nla_nest_end(skb, matches_attr); | |
1702 | return 0; | |
1703 | ||
1704 | nla_put_failure: | |
1705 | nla_nest_cancel(skb, matches_attr); | |
1706 | return -EMSGSIZE; | |
1707 | } | |
1708 | ||
1709 | int devlink_dpipe_action_put(struct sk_buff *skb, | |
1710 | struct devlink_dpipe_action *action) | |
1711 | { | |
1712 | struct devlink_dpipe_header *header = action->header; | |
1713 | struct devlink_dpipe_field *field = &header->fields[action->field_id]; | |
1714 | struct nlattr *action_attr; | |
1715 | ||
1716 | action_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_ACTION); | |
1717 | if (!action_attr) | |
1718 | return -EMSGSIZE; | |
1719 | ||
1720 | if (nla_put_u32(skb, DEVLINK_ATTR_DPIPE_ACTION_TYPE, action->type) || | |
1721 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_INDEX, action->header_index) || | |
1722 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_ID, header->id) || | |
1723 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_ID, field->id) || | |
1724 | nla_put_u8(skb, DEVLINK_ATTR_DPIPE_HEADER_GLOBAL, header->global)) | |
1725 | goto nla_put_failure; | |
1726 | ||
1727 | nla_nest_end(skb, action_attr); | |
1728 | return 0; | |
1729 | ||
1730 | nla_put_failure: | |
1731 | nla_nest_cancel(skb, action_attr); | |
1732 | return -EMSGSIZE; | |
1733 | } | |
1734 | EXPORT_SYMBOL_GPL(devlink_dpipe_action_put); | |
1735 | ||
1736 | static int devlink_dpipe_actions_put(struct devlink_dpipe_table *table, | |
1737 | struct sk_buff *skb) | |
1738 | { | |
1739 | struct nlattr *actions_attr; | |
1740 | ||
1741 | actions_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_TABLE_ACTIONS); | |
1742 | if (!actions_attr) | |
1743 | return -EMSGSIZE; | |
1744 | ||
1745 | if (table->table_ops->actions_dump(table->priv, skb)) | |
1746 | goto nla_put_failure; | |
1747 | ||
1748 | nla_nest_end(skb, actions_attr); | |
1749 | return 0; | |
1750 | ||
1751 | nla_put_failure: | |
1752 | nla_nest_cancel(skb, actions_attr); | |
1753 | return -EMSGSIZE; | |
1754 | } | |
1755 | ||
1756 | static int devlink_dpipe_table_put(struct sk_buff *skb, | |
1757 | struct devlink_dpipe_table *table) | |
1758 | { | |
1759 | struct nlattr *table_attr; | |
ffd3cdcc | 1760 | u64 table_size; |
1555d204 | 1761 | |
ffd3cdcc | 1762 | table_size = table->table_ops->size_get(table->priv); |
1555d204 AS |
1763 | table_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_TABLE); |
1764 | if (!table_attr) | |
1765 | return -EMSGSIZE; | |
1766 | ||
1767 | if (nla_put_string(skb, DEVLINK_ATTR_DPIPE_TABLE_NAME, table->name) || | |
ffd3cdcc | 1768 | nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_TABLE_SIZE, table_size, |
1555d204 AS |
1769 | DEVLINK_ATTR_PAD)) |
1770 | goto nla_put_failure; | |
1771 | if (nla_put_u8(skb, DEVLINK_ATTR_DPIPE_TABLE_COUNTERS_ENABLED, | |
1772 | table->counters_enabled)) | |
1773 | goto nla_put_failure; | |
1774 | ||
56dc7cd0 | 1775 | if (table->resource_valid) { |
3d18e4f1 AS |
1776 | if (nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_TABLE_RESOURCE_ID, |
1777 | table->resource_id, DEVLINK_ATTR_PAD) || | |
1778 | nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_TABLE_RESOURCE_UNITS, | |
1779 | table->resource_units, DEVLINK_ATTR_PAD)) | |
1780 | goto nla_put_failure; | |
56dc7cd0 | 1781 | } |
1555d204 AS |
1782 | if (devlink_dpipe_matches_put(table, skb)) |
1783 | goto nla_put_failure; | |
1784 | ||
1785 | if (devlink_dpipe_actions_put(table, skb)) | |
1786 | goto nla_put_failure; | |
1787 | ||
1788 | nla_nest_end(skb, table_attr); | |
1789 | return 0; | |
1790 | ||
1791 | nla_put_failure: | |
1792 | nla_nest_cancel(skb, table_attr); | |
1793 | return -EMSGSIZE; | |
1794 | } | |
1795 | ||
1796 | static int devlink_dpipe_send_and_alloc_skb(struct sk_buff **pskb, | |
1797 | struct genl_info *info) | |
1798 | { | |
1799 | int err; | |
1800 | ||
1801 | if (*pskb) { | |
1802 | err = genlmsg_reply(*pskb, info); | |
1803 | if (err) | |
1804 | return err; | |
1805 | } | |
1806 | *pskb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
1807 | if (!*pskb) | |
1808 | return -ENOMEM; | |
1809 | return 0; | |
1810 | } | |
1811 | ||
1812 | static int devlink_dpipe_tables_fill(struct genl_info *info, | |
1813 | enum devlink_command cmd, int flags, | |
1814 | struct list_head *dpipe_tables, | |
1815 | const char *table_name) | |
1816 | { | |
1817 | struct devlink *devlink = info->user_ptr[0]; | |
1818 | struct devlink_dpipe_table *table; | |
1819 | struct nlattr *tables_attr; | |
1820 | struct sk_buff *skb = NULL; | |
1821 | struct nlmsghdr *nlh; | |
1822 | bool incomplete; | |
1823 | void *hdr; | |
1824 | int i; | |
1825 | int err; | |
1826 | ||
1827 | table = list_first_entry(dpipe_tables, | |
1828 | struct devlink_dpipe_table, list); | |
1829 | start_again: | |
1830 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); | |
1831 | if (err) | |
1832 | return err; | |
1833 | ||
1834 | hdr = genlmsg_put(skb, info->snd_portid, info->snd_seq, | |
1835 | &devlink_nl_family, NLM_F_MULTI, cmd); | |
6044bd4a HY |
1836 | if (!hdr) { |
1837 | nlmsg_free(skb); | |
1555d204 | 1838 | return -EMSGSIZE; |
6044bd4a | 1839 | } |
1555d204 AS |
1840 | |
1841 | if (devlink_nl_put_handle(skb, devlink)) | |
1842 | goto nla_put_failure; | |
1843 | tables_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_TABLES); | |
1844 | if (!tables_attr) | |
1845 | goto nla_put_failure; | |
1846 | ||
1847 | i = 0; | |
1848 | incomplete = false; | |
1849 | list_for_each_entry_from(table, dpipe_tables, list) { | |
1850 | if (!table_name) { | |
1851 | err = devlink_dpipe_table_put(skb, table); | |
1852 | if (err) { | |
1853 | if (!i) | |
1854 | goto err_table_put; | |
1855 | incomplete = true; | |
1856 | break; | |
1857 | } | |
1858 | } else { | |
1859 | if (!strcmp(table->name, table_name)) { | |
1860 | err = devlink_dpipe_table_put(skb, table); | |
1861 | if (err) | |
1862 | break; | |
1863 | } | |
1864 | } | |
1865 | i++; | |
1866 | } | |
1867 | ||
1868 | nla_nest_end(skb, tables_attr); | |
1869 | genlmsg_end(skb, hdr); | |
1870 | if (incomplete) | |
1871 | goto start_again; | |
1872 | ||
1873 | send_done: | |
1874 | nlh = nlmsg_put(skb, info->snd_portid, info->snd_seq, | |
1875 | NLMSG_DONE, 0, flags | NLM_F_MULTI); | |
1876 | if (!nlh) { | |
1877 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); | |
1878 | if (err) | |
7fe4d6dc | 1879 | return err; |
1555d204 AS |
1880 | goto send_done; |
1881 | } | |
1882 | ||
1883 | return genlmsg_reply(skb, info); | |
1884 | ||
1885 | nla_put_failure: | |
1886 | err = -EMSGSIZE; | |
1887 | err_table_put: | |
1555d204 AS |
1888 | nlmsg_free(skb); |
1889 | return err; | |
1890 | } | |
1891 | ||
1892 | static int devlink_nl_cmd_dpipe_table_get(struct sk_buff *skb, | |
1893 | struct genl_info *info) | |
1894 | { | |
1895 | struct devlink *devlink = info->user_ptr[0]; | |
1896 | const char *table_name = NULL; | |
1897 | ||
1898 | if (info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME]) | |
1899 | table_name = nla_data(info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME]); | |
1900 | ||
1901 | return devlink_dpipe_tables_fill(info, DEVLINK_CMD_DPIPE_TABLE_GET, 0, | |
1902 | &devlink->dpipe_table_list, | |
1903 | table_name); | |
1904 | } | |
1905 | ||
1906 | static int devlink_dpipe_value_put(struct sk_buff *skb, | |
1907 | struct devlink_dpipe_value *value) | |
1908 | { | |
1909 | if (nla_put(skb, DEVLINK_ATTR_DPIPE_VALUE, | |
1910 | value->value_size, value->value)) | |
1911 | return -EMSGSIZE; | |
1912 | if (value->mask) | |
1913 | if (nla_put(skb, DEVLINK_ATTR_DPIPE_VALUE_MASK, | |
1914 | value->value_size, value->mask)) | |
1915 | return -EMSGSIZE; | |
1916 | if (value->mapping_valid) | |
1917 | if (nla_put_u32(skb, DEVLINK_ATTR_DPIPE_VALUE_MAPPING, | |
1918 | value->mapping_value)) | |
1919 | return -EMSGSIZE; | |
1920 | return 0; | |
1921 | } | |
1922 | ||
1923 | static int devlink_dpipe_action_value_put(struct sk_buff *skb, | |
1924 | struct devlink_dpipe_value *value) | |
1925 | { | |
1926 | if (!value->action) | |
1927 | return -EINVAL; | |
1928 | if (devlink_dpipe_action_put(skb, value->action)) | |
1929 | return -EMSGSIZE; | |
1930 | if (devlink_dpipe_value_put(skb, value)) | |
1931 | return -EMSGSIZE; | |
1932 | return 0; | |
1933 | } | |
1934 | ||
1935 | static int devlink_dpipe_action_values_put(struct sk_buff *skb, | |
1936 | struct devlink_dpipe_value *values, | |
1937 | unsigned int values_count) | |
1938 | { | |
1939 | struct nlattr *action_attr; | |
1940 | int i; | |
1941 | int err; | |
1942 | ||
1943 | for (i = 0; i < values_count; i++) { | |
1944 | action_attr = nla_nest_start(skb, | |
1945 | DEVLINK_ATTR_DPIPE_ACTION_VALUE); | |
1946 | if (!action_attr) | |
1947 | return -EMSGSIZE; | |
1948 | err = devlink_dpipe_action_value_put(skb, &values[i]); | |
1949 | if (err) | |
1950 | goto err_action_value_put; | |
1951 | nla_nest_end(skb, action_attr); | |
1952 | } | |
1953 | return 0; | |
1954 | ||
1955 | err_action_value_put: | |
1956 | nla_nest_cancel(skb, action_attr); | |
1957 | return err; | |
1958 | } | |
1959 | ||
1960 | static int devlink_dpipe_match_value_put(struct sk_buff *skb, | |
1961 | struct devlink_dpipe_value *value) | |
1962 | { | |
1963 | if (!value->match) | |
1964 | return -EINVAL; | |
1965 | if (devlink_dpipe_match_put(skb, value->match)) | |
1966 | return -EMSGSIZE; | |
1967 | if (devlink_dpipe_value_put(skb, value)) | |
1968 | return -EMSGSIZE; | |
1969 | return 0; | |
1970 | } | |
1971 | ||
1972 | static int devlink_dpipe_match_values_put(struct sk_buff *skb, | |
1973 | struct devlink_dpipe_value *values, | |
1974 | unsigned int values_count) | |
1975 | { | |
1976 | struct nlattr *match_attr; | |
1977 | int i; | |
1978 | int err; | |
1979 | ||
1980 | for (i = 0; i < values_count; i++) { | |
1981 | match_attr = nla_nest_start(skb, | |
1982 | DEVLINK_ATTR_DPIPE_MATCH_VALUE); | |
1983 | if (!match_attr) | |
1984 | return -EMSGSIZE; | |
1985 | err = devlink_dpipe_match_value_put(skb, &values[i]); | |
1986 | if (err) | |
1987 | goto err_match_value_put; | |
1988 | nla_nest_end(skb, match_attr); | |
1989 | } | |
1990 | return 0; | |
1991 | ||
1992 | err_match_value_put: | |
1993 | nla_nest_cancel(skb, match_attr); | |
1994 | return err; | |
1995 | } | |
1996 | ||
1997 | static int devlink_dpipe_entry_put(struct sk_buff *skb, | |
1998 | struct devlink_dpipe_entry *entry) | |
1999 | { | |
2000 | struct nlattr *entry_attr, *matches_attr, *actions_attr; | |
2001 | int err; | |
2002 | ||
2003 | entry_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_ENTRY); | |
2004 | if (!entry_attr) | |
2005 | return -EMSGSIZE; | |
2006 | ||
2007 | if (nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_ENTRY_INDEX, entry->index, | |
2008 | DEVLINK_ATTR_PAD)) | |
2009 | goto nla_put_failure; | |
2010 | if (entry->counter_valid) | |
2011 | if (nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_ENTRY_COUNTER, | |
2012 | entry->counter, DEVLINK_ATTR_PAD)) | |
2013 | goto nla_put_failure; | |
2014 | ||
2015 | matches_attr = nla_nest_start(skb, | |
2016 | DEVLINK_ATTR_DPIPE_ENTRY_MATCH_VALUES); | |
2017 | if (!matches_attr) | |
2018 | goto nla_put_failure; | |
2019 | ||
2020 | err = devlink_dpipe_match_values_put(skb, entry->match_values, | |
2021 | entry->match_values_count); | |
2022 | if (err) { | |
2023 | nla_nest_cancel(skb, matches_attr); | |
2024 | goto err_match_values_put; | |
2025 | } | |
2026 | nla_nest_end(skb, matches_attr); | |
2027 | ||
2028 | actions_attr = nla_nest_start(skb, | |
2029 | DEVLINK_ATTR_DPIPE_ENTRY_ACTION_VALUES); | |
2030 | if (!actions_attr) | |
2031 | goto nla_put_failure; | |
2032 | ||
2033 | err = devlink_dpipe_action_values_put(skb, entry->action_values, | |
2034 | entry->action_values_count); | |
2035 | if (err) { | |
2036 | nla_nest_cancel(skb, actions_attr); | |
2037 | goto err_action_values_put; | |
2038 | } | |
2039 | nla_nest_end(skb, actions_attr); | |
59bfde01 | 2040 | |
1555d204 | 2041 | nla_nest_end(skb, entry_attr); |
59bfde01 | 2042 | return 0; |
1555d204 AS |
2043 | |
2044 | nla_put_failure: | |
2045 | err = -EMSGSIZE; | |
2046 | err_match_values_put: | |
2047 | err_action_values_put: | |
2048 | nla_nest_cancel(skb, entry_attr); | |
2049 | return err; | |
2050 | } | |
2051 | ||
2052 | static struct devlink_dpipe_table * | |
2053 | devlink_dpipe_table_find(struct list_head *dpipe_tables, | |
2054 | const char *table_name) | |
2055 | { | |
2056 | struct devlink_dpipe_table *table; | |
2057 | ||
2058 | list_for_each_entry_rcu(table, dpipe_tables, list) { | |
2059 | if (!strcmp(table->name, table_name)) | |
2060 | return table; | |
2061 | } | |
2062 | return NULL; | |
2063 | } | |
2064 | ||
2065 | int devlink_dpipe_entry_ctx_prepare(struct devlink_dpipe_dump_ctx *dump_ctx) | |
2066 | { | |
2067 | struct devlink *devlink; | |
2068 | int err; | |
2069 | ||
2070 | err = devlink_dpipe_send_and_alloc_skb(&dump_ctx->skb, | |
2071 | dump_ctx->info); | |
2072 | if (err) | |
2073 | return err; | |
2074 | ||
2075 | dump_ctx->hdr = genlmsg_put(dump_ctx->skb, | |
2076 | dump_ctx->info->snd_portid, | |
2077 | dump_ctx->info->snd_seq, | |
2078 | &devlink_nl_family, NLM_F_MULTI, | |
2079 | dump_ctx->cmd); | |
2080 | if (!dump_ctx->hdr) | |
2081 | goto nla_put_failure; | |
2082 | ||
2083 | devlink = dump_ctx->info->user_ptr[0]; | |
2084 | if (devlink_nl_put_handle(dump_ctx->skb, devlink)) | |
2085 | goto nla_put_failure; | |
2086 | dump_ctx->nest = nla_nest_start(dump_ctx->skb, | |
2087 | DEVLINK_ATTR_DPIPE_ENTRIES); | |
2088 | if (!dump_ctx->nest) | |
2089 | goto nla_put_failure; | |
2090 | return 0; | |
2091 | ||
2092 | nla_put_failure: | |
1555d204 AS |
2093 | nlmsg_free(dump_ctx->skb); |
2094 | return -EMSGSIZE; | |
2095 | } | |
2096 | EXPORT_SYMBOL_GPL(devlink_dpipe_entry_ctx_prepare); | |
2097 | ||
2098 | int devlink_dpipe_entry_ctx_append(struct devlink_dpipe_dump_ctx *dump_ctx, | |
2099 | struct devlink_dpipe_entry *entry) | |
2100 | { | |
2101 | return devlink_dpipe_entry_put(dump_ctx->skb, entry); | |
2102 | } | |
2103 | EXPORT_SYMBOL_GPL(devlink_dpipe_entry_ctx_append); | |
2104 | ||
2105 | int devlink_dpipe_entry_ctx_close(struct devlink_dpipe_dump_ctx *dump_ctx) | |
2106 | { | |
2107 | nla_nest_end(dump_ctx->skb, dump_ctx->nest); | |
2108 | genlmsg_end(dump_ctx->skb, dump_ctx->hdr); | |
2109 | return 0; | |
2110 | } | |
2111 | EXPORT_SYMBOL_GPL(devlink_dpipe_entry_ctx_close); | |
2112 | ||
35807324 AS |
2113 | void devlink_dpipe_entry_clear(struct devlink_dpipe_entry *entry) |
2114 | ||
2115 | { | |
2116 | unsigned int value_count, value_index; | |
2117 | struct devlink_dpipe_value *value; | |
2118 | ||
2119 | value = entry->action_values; | |
2120 | value_count = entry->action_values_count; | |
2121 | for (value_index = 0; value_index < value_count; value_index++) { | |
2122 | kfree(value[value_index].value); | |
2123 | kfree(value[value_index].mask); | |
2124 | } | |
2125 | ||
2126 | value = entry->match_values; | |
2127 | value_count = entry->match_values_count; | |
2128 | for (value_index = 0; value_index < value_count; value_index++) { | |
2129 | kfree(value[value_index].value); | |
2130 | kfree(value[value_index].mask); | |
2131 | } | |
2132 | } | |
2133 | EXPORT_SYMBOL(devlink_dpipe_entry_clear); | |
2134 | ||
1555d204 AS |
2135 | static int devlink_dpipe_entries_fill(struct genl_info *info, |
2136 | enum devlink_command cmd, int flags, | |
2137 | struct devlink_dpipe_table *table) | |
2138 | { | |
2139 | struct devlink_dpipe_dump_ctx dump_ctx; | |
2140 | struct nlmsghdr *nlh; | |
2141 | int err; | |
2142 | ||
2143 | dump_ctx.skb = NULL; | |
2144 | dump_ctx.cmd = cmd; | |
2145 | dump_ctx.info = info; | |
2146 | ||
2147 | err = table->table_ops->entries_dump(table->priv, | |
2148 | table->counters_enabled, | |
2149 | &dump_ctx); | |
2150 | if (err) | |
7fe4d6dc | 2151 | return err; |
1555d204 AS |
2152 | |
2153 | send_done: | |
2154 | nlh = nlmsg_put(dump_ctx.skb, info->snd_portid, info->snd_seq, | |
2155 | NLMSG_DONE, 0, flags | NLM_F_MULTI); | |
2156 | if (!nlh) { | |
2157 | err = devlink_dpipe_send_and_alloc_skb(&dump_ctx.skb, info); | |
2158 | if (err) | |
7fe4d6dc | 2159 | return err; |
1555d204 AS |
2160 | goto send_done; |
2161 | } | |
2162 | return genlmsg_reply(dump_ctx.skb, info); | |
1555d204 AS |
2163 | } |
2164 | ||
2165 | static int devlink_nl_cmd_dpipe_entries_get(struct sk_buff *skb, | |
2166 | struct genl_info *info) | |
2167 | { | |
2168 | struct devlink *devlink = info->user_ptr[0]; | |
2169 | struct devlink_dpipe_table *table; | |
2170 | const char *table_name; | |
2171 | ||
2172 | if (!info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME]) | |
2173 | return -EINVAL; | |
2174 | ||
2175 | table_name = nla_data(info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME]); | |
2176 | table = devlink_dpipe_table_find(&devlink->dpipe_table_list, | |
2177 | table_name); | |
2178 | if (!table) | |
2179 | return -EINVAL; | |
2180 | ||
2181 | if (!table->table_ops->entries_dump) | |
2182 | return -EINVAL; | |
2183 | ||
2184 | return devlink_dpipe_entries_fill(info, DEVLINK_CMD_DPIPE_ENTRIES_GET, | |
2185 | 0, table); | |
2186 | } | |
2187 | ||
2188 | static int devlink_dpipe_fields_put(struct sk_buff *skb, | |
2189 | const struct devlink_dpipe_header *header) | |
2190 | { | |
2191 | struct devlink_dpipe_field *field; | |
2192 | struct nlattr *field_attr; | |
2193 | int i; | |
2194 | ||
2195 | for (i = 0; i < header->fields_count; i++) { | |
2196 | field = &header->fields[i]; | |
2197 | field_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_FIELD); | |
2198 | if (!field_attr) | |
2199 | return -EMSGSIZE; | |
2200 | if (nla_put_string(skb, DEVLINK_ATTR_DPIPE_FIELD_NAME, field->name) || | |
2201 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_ID, field->id) || | |
2202 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_BITWIDTH, field->bitwidth) || | |
2203 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_MAPPING_TYPE, field->mapping_type)) | |
2204 | goto nla_put_failure; | |
2205 | nla_nest_end(skb, field_attr); | |
2206 | } | |
2207 | return 0; | |
2208 | ||
2209 | nla_put_failure: | |
2210 | nla_nest_cancel(skb, field_attr); | |
2211 | return -EMSGSIZE; | |
2212 | } | |
2213 | ||
2214 | static int devlink_dpipe_header_put(struct sk_buff *skb, | |
2215 | struct devlink_dpipe_header *header) | |
2216 | { | |
2217 | struct nlattr *fields_attr, *header_attr; | |
2218 | int err; | |
2219 | ||
2220 | header_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_HEADER); | |
cb6bf9cf | 2221 | if (!header_attr) |
1555d204 AS |
2222 | return -EMSGSIZE; |
2223 | ||
2224 | if (nla_put_string(skb, DEVLINK_ATTR_DPIPE_HEADER_NAME, header->name) || | |
2225 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_ID, header->id) || | |
2226 | nla_put_u8(skb, DEVLINK_ATTR_DPIPE_HEADER_GLOBAL, header->global)) | |
2227 | goto nla_put_failure; | |
2228 | ||
2229 | fields_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_HEADER_FIELDS); | |
2230 | if (!fields_attr) | |
2231 | goto nla_put_failure; | |
2232 | ||
2233 | err = devlink_dpipe_fields_put(skb, header); | |
2234 | if (err) { | |
2235 | nla_nest_cancel(skb, fields_attr); | |
2236 | goto nla_put_failure; | |
2237 | } | |
2238 | nla_nest_end(skb, fields_attr); | |
2239 | nla_nest_end(skb, header_attr); | |
2240 | return 0; | |
2241 | ||
2242 | nla_put_failure: | |
2243 | err = -EMSGSIZE; | |
2244 | nla_nest_cancel(skb, header_attr); | |
2245 | return err; | |
2246 | } | |
2247 | ||
2248 | static int devlink_dpipe_headers_fill(struct genl_info *info, | |
2249 | enum devlink_command cmd, int flags, | |
2250 | struct devlink_dpipe_headers * | |
2251 | dpipe_headers) | |
2252 | { | |
2253 | struct devlink *devlink = info->user_ptr[0]; | |
2254 | struct nlattr *headers_attr; | |
2255 | struct sk_buff *skb = NULL; | |
2256 | struct nlmsghdr *nlh; | |
2257 | void *hdr; | |
2258 | int i, j; | |
2259 | int err; | |
2260 | ||
2261 | i = 0; | |
2262 | start_again: | |
2263 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); | |
2264 | if (err) | |
2265 | return err; | |
2266 | ||
2267 | hdr = genlmsg_put(skb, info->snd_portid, info->snd_seq, | |
2268 | &devlink_nl_family, NLM_F_MULTI, cmd); | |
6044bd4a HY |
2269 | if (!hdr) { |
2270 | nlmsg_free(skb); | |
1555d204 | 2271 | return -EMSGSIZE; |
6044bd4a | 2272 | } |
1555d204 AS |
2273 | |
2274 | if (devlink_nl_put_handle(skb, devlink)) | |
2275 | goto nla_put_failure; | |
2276 | headers_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_HEADERS); | |
2277 | if (!headers_attr) | |
2278 | goto nla_put_failure; | |
2279 | ||
2280 | j = 0; | |
2281 | for (; i < dpipe_headers->headers_count; i++) { | |
2282 | err = devlink_dpipe_header_put(skb, dpipe_headers->headers[i]); | |
2283 | if (err) { | |
2284 | if (!j) | |
2285 | goto err_table_put; | |
2286 | break; | |
2287 | } | |
2288 | j++; | |
2289 | } | |
2290 | nla_nest_end(skb, headers_attr); | |
2291 | genlmsg_end(skb, hdr); | |
2292 | if (i != dpipe_headers->headers_count) | |
2293 | goto start_again; | |
2294 | ||
2295 | send_done: | |
2296 | nlh = nlmsg_put(skb, info->snd_portid, info->snd_seq, | |
2297 | NLMSG_DONE, 0, flags | NLM_F_MULTI); | |
2298 | if (!nlh) { | |
2299 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); | |
2300 | if (err) | |
7fe4d6dc | 2301 | return err; |
1555d204 AS |
2302 | goto send_done; |
2303 | } | |
2304 | return genlmsg_reply(skb, info); | |
2305 | ||
2306 | nla_put_failure: | |
2307 | err = -EMSGSIZE; | |
2308 | err_table_put: | |
1555d204 AS |
2309 | nlmsg_free(skb); |
2310 | return err; | |
2311 | } | |
2312 | ||
2313 | static int devlink_nl_cmd_dpipe_headers_get(struct sk_buff *skb, | |
2314 | struct genl_info *info) | |
2315 | { | |
2316 | struct devlink *devlink = info->user_ptr[0]; | |
2317 | ||
2318 | if (!devlink->dpipe_headers) | |
2319 | return -EOPNOTSUPP; | |
2320 | return devlink_dpipe_headers_fill(info, DEVLINK_CMD_DPIPE_HEADERS_GET, | |
2321 | 0, devlink->dpipe_headers); | |
2322 | } | |
2323 | ||
2324 | static int devlink_dpipe_table_counters_set(struct devlink *devlink, | |
2325 | const char *table_name, | |
2326 | bool enable) | |
2327 | { | |
2328 | struct devlink_dpipe_table *table; | |
2329 | ||
2330 | table = devlink_dpipe_table_find(&devlink->dpipe_table_list, | |
2331 | table_name); | |
2332 | if (!table) | |
2333 | return -EINVAL; | |
2334 | ||
2335 | if (table->counter_control_extern) | |
2336 | return -EOPNOTSUPP; | |
2337 | ||
2338 | if (!(table->counters_enabled ^ enable)) | |
2339 | return 0; | |
2340 | ||
2341 | table->counters_enabled = enable; | |
2342 | if (table->table_ops->counters_set_update) | |
2343 | table->table_ops->counters_set_update(table->priv, enable); | |
2344 | return 0; | |
2345 | } | |
2346 | ||
2347 | static int devlink_nl_cmd_dpipe_table_counters_set(struct sk_buff *skb, | |
2348 | struct genl_info *info) | |
2349 | { | |
2350 | struct devlink *devlink = info->user_ptr[0]; | |
2351 | const char *table_name; | |
2352 | bool counters_enable; | |
2353 | ||
2354 | if (!info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME] || | |
2355 | !info->attrs[DEVLINK_ATTR_DPIPE_TABLE_COUNTERS_ENABLED]) | |
2356 | return -EINVAL; | |
2357 | ||
2358 | table_name = nla_data(info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME]); | |
2359 | counters_enable = !!nla_get_u8(info->attrs[DEVLINK_ATTR_DPIPE_TABLE_COUNTERS_ENABLED]); | |
2360 | ||
2361 | return devlink_dpipe_table_counters_set(devlink, table_name, | |
2362 | counters_enable); | |
08f4b591 OG |
2363 | } |
2364 | ||
43dd7512 | 2365 | static struct devlink_resource * |
d9f9b9a4 AS |
2366 | devlink_resource_find(struct devlink *devlink, |
2367 | struct devlink_resource *resource, u64 resource_id) | |
2368 | { | |
2369 | struct list_head *resource_list; | |
2370 | ||
2371 | if (resource) | |
2372 | resource_list = &resource->resource_list; | |
2373 | else | |
2374 | resource_list = &devlink->resource_list; | |
2375 | ||
2376 | list_for_each_entry(resource, resource_list, list) { | |
2377 | struct devlink_resource *child_resource; | |
2378 | ||
2379 | if (resource->id == resource_id) | |
2380 | return resource; | |
2381 | ||
2382 | child_resource = devlink_resource_find(devlink, resource, | |
2383 | resource_id); | |
2384 | if (child_resource) | |
2385 | return child_resource; | |
2386 | } | |
2387 | return NULL; | |
2388 | } | |
2389 | ||
43dd7512 WY |
2390 | static void |
2391 | devlink_resource_validate_children(struct devlink_resource *resource) | |
d9f9b9a4 AS |
2392 | { |
2393 | struct devlink_resource *child_resource; | |
2394 | bool size_valid = true; | |
2395 | u64 parts_size = 0; | |
2396 | ||
2397 | if (list_empty(&resource->resource_list)) | |
2398 | goto out; | |
2399 | ||
2400 | list_for_each_entry(child_resource, &resource->resource_list, list) | |
2401 | parts_size += child_resource->size_new; | |
2402 | ||
b9d17175 | 2403 | if (parts_size > resource->size_new) |
d9f9b9a4 AS |
2404 | size_valid = false; |
2405 | out: | |
2406 | resource->size_valid = size_valid; | |
2407 | } | |
2408 | ||
cc944ead AS |
2409 | static int |
2410 | devlink_resource_validate_size(struct devlink_resource *resource, u64 size, | |
2411 | struct netlink_ext_ack *extack) | |
2412 | { | |
2413 | u64 reminder; | |
2414 | int err = 0; | |
2415 | ||
0f3e9c97 | 2416 | if (size > resource->size_params.size_max) { |
cc944ead AS |
2417 | NL_SET_ERR_MSG_MOD(extack, "Size larger than maximum"); |
2418 | err = -EINVAL; | |
2419 | } | |
2420 | ||
0f3e9c97 | 2421 | if (size < resource->size_params.size_min) { |
cc944ead AS |
2422 | NL_SET_ERR_MSG_MOD(extack, "Size smaller than minimum"); |
2423 | err = -EINVAL; | |
2424 | } | |
2425 | ||
0f3e9c97 | 2426 | div64_u64_rem(size, resource->size_params.size_granularity, &reminder); |
cc944ead AS |
2427 | if (reminder) { |
2428 | NL_SET_ERR_MSG_MOD(extack, "Wrong granularity"); | |
2429 | err = -EINVAL; | |
2430 | } | |
2431 | ||
2432 | return err; | |
2433 | } | |
2434 | ||
d9f9b9a4 AS |
2435 | static int devlink_nl_cmd_resource_set(struct sk_buff *skb, |
2436 | struct genl_info *info) | |
2437 | { | |
2438 | struct devlink *devlink = info->user_ptr[0]; | |
2439 | struct devlink_resource *resource; | |
2440 | u64 resource_id; | |
2441 | u64 size; | |
2442 | int err; | |
2443 | ||
2444 | if (!info->attrs[DEVLINK_ATTR_RESOURCE_ID] || | |
2445 | !info->attrs[DEVLINK_ATTR_RESOURCE_SIZE]) | |
2446 | return -EINVAL; | |
2447 | resource_id = nla_get_u64(info->attrs[DEVLINK_ATTR_RESOURCE_ID]); | |
2448 | ||
2449 | resource = devlink_resource_find(devlink, NULL, resource_id); | |
2450 | if (!resource) | |
2451 | return -EINVAL; | |
2452 | ||
d9f9b9a4 | 2453 | size = nla_get_u64(info->attrs[DEVLINK_ATTR_RESOURCE_SIZE]); |
cc944ead | 2454 | err = devlink_resource_validate_size(resource, size, info->extack); |
d9f9b9a4 AS |
2455 | if (err) |
2456 | return err; | |
2457 | ||
2458 | resource->size_new = size; | |
2459 | devlink_resource_validate_children(resource); | |
2460 | if (resource->parent) | |
2461 | devlink_resource_validate_children(resource->parent); | |
2462 | return 0; | |
2463 | } | |
2464 | ||
3d18e4f1 | 2465 | static int |
d9f9b9a4 AS |
2466 | devlink_resource_size_params_put(struct devlink_resource *resource, |
2467 | struct sk_buff *skb) | |
2468 | { | |
2469 | struct devlink_resource_size_params *size_params; | |
2470 | ||
77d27096 | 2471 | size_params = &resource->size_params; |
3d18e4f1 AS |
2472 | if (nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE_GRAN, |
2473 | size_params->size_granularity, DEVLINK_ATTR_PAD) || | |
2474 | nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE_MAX, | |
2475 | size_params->size_max, DEVLINK_ATTR_PAD) || | |
2476 | nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE_MIN, | |
2477 | size_params->size_min, DEVLINK_ATTR_PAD) || | |
2478 | nla_put_u8(skb, DEVLINK_ATTR_RESOURCE_UNIT, size_params->unit)) | |
2479 | return -EMSGSIZE; | |
2480 | return 0; | |
d9f9b9a4 AS |
2481 | } |
2482 | ||
fc56be47 JP |
2483 | static int devlink_resource_occ_put(struct devlink_resource *resource, |
2484 | struct sk_buff *skb) | |
2485 | { | |
2486 | if (!resource->occ_get) | |
2487 | return 0; | |
2488 | return nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_OCC, | |
2489 | resource->occ_get(resource->occ_get_priv), | |
2490 | DEVLINK_ATTR_PAD); | |
2491 | } | |
2492 | ||
d9f9b9a4 AS |
2493 | static int devlink_resource_put(struct devlink *devlink, struct sk_buff *skb, |
2494 | struct devlink_resource *resource) | |
2495 | { | |
2496 | struct devlink_resource *child_resource; | |
2497 | struct nlattr *child_resource_attr; | |
2498 | struct nlattr *resource_attr; | |
2499 | ||
2500 | resource_attr = nla_nest_start(skb, DEVLINK_ATTR_RESOURCE); | |
2501 | if (!resource_attr) | |
2502 | return -EMSGSIZE; | |
2503 | ||
2504 | if (nla_put_string(skb, DEVLINK_ATTR_RESOURCE_NAME, resource->name) || | |
2505 | nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE, resource->size, | |
2506 | DEVLINK_ATTR_PAD) || | |
2507 | nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_ID, resource->id, | |
2508 | DEVLINK_ATTR_PAD)) | |
2509 | goto nla_put_failure; | |
2510 | if (resource->size != resource->size_new) | |
2511 | nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE_NEW, | |
2512 | resource->size_new, DEVLINK_ATTR_PAD); | |
fc56be47 JP |
2513 | if (devlink_resource_occ_put(resource, skb)) |
2514 | goto nla_put_failure; | |
3d18e4f1 AS |
2515 | if (devlink_resource_size_params_put(resource, skb)) |
2516 | goto nla_put_failure; | |
d9f9b9a4 AS |
2517 | if (list_empty(&resource->resource_list)) |
2518 | goto out; | |
2519 | ||
2520 | if (nla_put_u8(skb, DEVLINK_ATTR_RESOURCE_SIZE_VALID, | |
2521 | resource->size_valid)) | |
2522 | goto nla_put_failure; | |
2523 | ||
2524 | child_resource_attr = nla_nest_start(skb, DEVLINK_ATTR_RESOURCE_LIST); | |
2525 | if (!child_resource_attr) | |
2526 | goto nla_put_failure; | |
2527 | ||
2528 | list_for_each_entry(child_resource, &resource->resource_list, list) { | |
2529 | if (devlink_resource_put(devlink, skb, child_resource)) | |
2530 | goto resource_put_failure; | |
2531 | } | |
2532 | ||
2533 | nla_nest_end(skb, child_resource_attr); | |
2534 | out: | |
2535 | nla_nest_end(skb, resource_attr); | |
2536 | return 0; | |
2537 | ||
2538 | resource_put_failure: | |
2539 | nla_nest_cancel(skb, child_resource_attr); | |
2540 | nla_put_failure: | |
2541 | nla_nest_cancel(skb, resource_attr); | |
2542 | return -EMSGSIZE; | |
2543 | } | |
2544 | ||
2545 | static int devlink_resource_fill(struct genl_info *info, | |
2546 | enum devlink_command cmd, int flags) | |
2547 | { | |
2548 | struct devlink *devlink = info->user_ptr[0]; | |
2549 | struct devlink_resource *resource; | |
2550 | struct nlattr *resources_attr; | |
2551 | struct sk_buff *skb = NULL; | |
2552 | struct nlmsghdr *nlh; | |
2553 | bool incomplete; | |
2554 | void *hdr; | |
2555 | int i; | |
2556 | int err; | |
2557 | ||
2558 | resource = list_first_entry(&devlink->resource_list, | |
2559 | struct devlink_resource, list); | |
2560 | start_again: | |
2561 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); | |
2562 | if (err) | |
2563 | return err; | |
2564 | ||
2565 | hdr = genlmsg_put(skb, info->snd_portid, info->snd_seq, | |
2566 | &devlink_nl_family, NLM_F_MULTI, cmd); | |
2567 | if (!hdr) { | |
2568 | nlmsg_free(skb); | |
2569 | return -EMSGSIZE; | |
2570 | } | |
2571 | ||
2572 | if (devlink_nl_put_handle(skb, devlink)) | |
2573 | goto nla_put_failure; | |
2574 | ||
2575 | resources_attr = nla_nest_start(skb, DEVLINK_ATTR_RESOURCE_LIST); | |
2576 | if (!resources_attr) | |
2577 | goto nla_put_failure; | |
2578 | ||
2579 | incomplete = false; | |
2580 | i = 0; | |
2581 | list_for_each_entry_from(resource, &devlink->resource_list, list) { | |
2582 | err = devlink_resource_put(devlink, skb, resource); | |
2583 | if (err) { | |
2584 | if (!i) | |
2585 | goto err_resource_put; | |
2586 | incomplete = true; | |
2587 | break; | |
2588 | } | |
2589 | i++; | |
2590 | } | |
2591 | nla_nest_end(skb, resources_attr); | |
2592 | genlmsg_end(skb, hdr); | |
2593 | if (incomplete) | |
2594 | goto start_again; | |
2595 | send_done: | |
2596 | nlh = nlmsg_put(skb, info->snd_portid, info->snd_seq, | |
2597 | NLMSG_DONE, 0, flags | NLM_F_MULTI); | |
2598 | if (!nlh) { | |
2599 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); | |
2600 | if (err) | |
83fe9a96 | 2601 | return err; |
d9f9b9a4 AS |
2602 | goto send_done; |
2603 | } | |
2604 | return genlmsg_reply(skb, info); | |
2605 | ||
2606 | nla_put_failure: | |
2607 | err = -EMSGSIZE; | |
2608 | err_resource_put: | |
d9f9b9a4 AS |
2609 | nlmsg_free(skb); |
2610 | return err; | |
2611 | } | |
2612 | ||
2613 | static int devlink_nl_cmd_resource_dump(struct sk_buff *skb, | |
2614 | struct genl_info *info) | |
2615 | { | |
2616 | struct devlink *devlink = info->user_ptr[0]; | |
2617 | ||
2618 | if (list_empty(&devlink->resource_list)) | |
2619 | return -EOPNOTSUPP; | |
2620 | ||
2621 | return devlink_resource_fill(info, DEVLINK_CMD_RESOURCE_DUMP, 0); | |
2622 | } | |
2623 | ||
2d8dc5bb AS |
2624 | static int |
2625 | devlink_resources_validate(struct devlink *devlink, | |
2626 | struct devlink_resource *resource, | |
2627 | struct genl_info *info) | |
2628 | { | |
2629 | struct list_head *resource_list; | |
2630 | int err = 0; | |
2631 | ||
2632 | if (resource) | |
2633 | resource_list = &resource->resource_list; | |
2634 | else | |
2635 | resource_list = &devlink->resource_list; | |
2636 | ||
2637 | list_for_each_entry(resource, resource_list, list) { | |
2638 | if (!resource->size_valid) | |
2639 | return -EINVAL; | |
2640 | err = devlink_resources_validate(devlink, resource, info); | |
2641 | if (err) | |
2642 | return err; | |
2643 | } | |
2644 | return err; | |
2645 | } | |
2646 | ||
2647 | static int devlink_nl_cmd_reload(struct sk_buff *skb, struct genl_info *info) | |
2648 | { | |
2649 | struct devlink *devlink = info->user_ptr[0]; | |
2650 | int err; | |
2651 | ||
2652 | if (!devlink->ops->reload) | |
2653 | return -EOPNOTSUPP; | |
2654 | ||
2655 | err = devlink_resources_validate(devlink, NULL, info); | |
2656 | if (err) { | |
2657 | NL_SET_ERR_MSG_MOD(info->extack, "resources size validation failed"); | |
2658 | return err; | |
2659 | } | |
ac0fc8a1 | 2660 | return devlink->ops->reload(devlink, info->extack); |
2d8dc5bb AS |
2661 | } |
2662 | ||
036467c3 MS |
2663 | static const struct devlink_param devlink_param_generic[] = { |
2664 | { | |
2665 | .id = DEVLINK_PARAM_GENERIC_ID_INT_ERR_RESET, | |
2666 | .name = DEVLINK_PARAM_GENERIC_INT_ERR_RESET_NAME, | |
2667 | .type = DEVLINK_PARAM_GENERIC_INT_ERR_RESET_TYPE, | |
2668 | }, | |
2669 | { | |
2670 | .id = DEVLINK_PARAM_GENERIC_ID_MAX_MACS, | |
2671 | .name = DEVLINK_PARAM_GENERIC_MAX_MACS_NAME, | |
2672 | .type = DEVLINK_PARAM_GENERIC_MAX_MACS_TYPE, | |
2673 | }, | |
f567bcda VV |
2674 | { |
2675 | .id = DEVLINK_PARAM_GENERIC_ID_ENABLE_SRIOV, | |
2676 | .name = DEVLINK_PARAM_GENERIC_ENABLE_SRIOV_NAME, | |
2677 | .type = DEVLINK_PARAM_GENERIC_ENABLE_SRIOV_TYPE, | |
2678 | }, | |
f6a69885 AV |
2679 | { |
2680 | .id = DEVLINK_PARAM_GENERIC_ID_REGION_SNAPSHOT, | |
2681 | .name = DEVLINK_PARAM_GENERIC_REGION_SNAPSHOT_NAME, | |
2682 | .type = DEVLINK_PARAM_GENERIC_REGION_SNAPSHOT_TYPE, | |
2683 | }, | |
e3b51061 VV |
2684 | { |
2685 | .id = DEVLINK_PARAM_GENERIC_ID_IGNORE_ARI, | |
2686 | .name = DEVLINK_PARAM_GENERIC_IGNORE_ARI_NAME, | |
2687 | .type = DEVLINK_PARAM_GENERIC_IGNORE_ARI_TYPE, | |
2688 | }, | |
f61cba42 VV |
2689 | { |
2690 | .id = DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MAX, | |
2691 | .name = DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MAX_NAME, | |
2692 | .type = DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MAX_TYPE, | |
2693 | }, | |
16511789 VV |
2694 | { |
2695 | .id = DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MIN, | |
2696 | .name = DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MIN_NAME, | |
2697 | .type = DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MIN_TYPE, | |
2698 | }, | |
846e980a ST |
2699 | { |
2700 | .id = DEVLINK_PARAM_GENERIC_ID_FW_LOAD_POLICY, | |
2701 | .name = DEVLINK_PARAM_GENERIC_FW_LOAD_POLICY_NAME, | |
2702 | .type = DEVLINK_PARAM_GENERIC_FW_LOAD_POLICY_TYPE, | |
2703 | }, | |
b639583f VV |
2704 | { |
2705 | .id = DEVLINK_PARAM_GENERIC_ID_WOL, | |
2706 | .name = DEVLINK_PARAM_GENERIC_WOL_NAME, | |
2707 | .type = DEVLINK_PARAM_GENERIC_WOL_TYPE, | |
2708 | }, | |
036467c3 | 2709 | }; |
eabaef18 MS |
2710 | |
2711 | static int devlink_param_generic_verify(const struct devlink_param *param) | |
2712 | { | |
2713 | /* verify it match generic parameter by id and name */ | |
2714 | if (param->id > DEVLINK_PARAM_GENERIC_ID_MAX) | |
2715 | return -EINVAL; | |
2716 | if (strcmp(param->name, devlink_param_generic[param->id].name)) | |
2717 | return -ENOENT; | |
2718 | ||
2719 | WARN_ON(param->type != devlink_param_generic[param->id].type); | |
2720 | ||
2721 | return 0; | |
2722 | } | |
2723 | ||
2724 | static int devlink_param_driver_verify(const struct devlink_param *param) | |
2725 | { | |
2726 | int i; | |
2727 | ||
2728 | if (param->id <= DEVLINK_PARAM_GENERIC_ID_MAX) | |
2729 | return -EINVAL; | |
2730 | /* verify no such name in generic params */ | |
2731 | for (i = 0; i <= DEVLINK_PARAM_GENERIC_ID_MAX; i++) | |
2732 | if (!strcmp(param->name, devlink_param_generic[i].name)) | |
2733 | return -EEXIST; | |
2734 | ||
2735 | return 0; | |
2736 | } | |
2737 | ||
2738 | static struct devlink_param_item * | |
2739 | devlink_param_find_by_name(struct list_head *param_list, | |
2740 | const char *param_name) | |
2741 | { | |
2742 | struct devlink_param_item *param_item; | |
2743 | ||
2744 | list_for_each_entry(param_item, param_list, list) | |
2745 | if (!strcmp(param_item->param->name, param_name)) | |
2746 | return param_item; | |
2747 | return NULL; | |
2748 | } | |
2749 | ||
ec01aeb1 MS |
2750 | static struct devlink_param_item * |
2751 | devlink_param_find_by_id(struct list_head *param_list, u32 param_id) | |
2752 | { | |
2753 | struct devlink_param_item *param_item; | |
2754 | ||
2755 | list_for_each_entry(param_item, param_list, list) | |
2756 | if (param_item->param->id == param_id) | |
2757 | return param_item; | |
2758 | return NULL; | |
2759 | } | |
2760 | ||
45f05def MS |
2761 | static bool |
2762 | devlink_param_cmode_is_supported(const struct devlink_param *param, | |
2763 | enum devlink_param_cmode cmode) | |
2764 | { | |
2765 | return test_bit(cmode, ¶m->supported_cmodes); | |
2766 | } | |
2767 | ||
2768 | static int devlink_param_get(struct devlink *devlink, | |
2769 | const struct devlink_param *param, | |
2770 | struct devlink_param_gset_ctx *ctx) | |
2771 | { | |
2772 | if (!param->get) | |
2773 | return -EOPNOTSUPP; | |
2774 | return param->get(devlink, param->id, ctx); | |
2775 | } | |
2776 | ||
e3b7ca18 MS |
2777 | static int devlink_param_set(struct devlink *devlink, |
2778 | const struct devlink_param *param, | |
2779 | struct devlink_param_gset_ctx *ctx) | |
2780 | { | |
2781 | if (!param->set) | |
2782 | return -EOPNOTSUPP; | |
2783 | return param->set(devlink, param->id, ctx); | |
2784 | } | |
2785 | ||
45f05def MS |
2786 | static int |
2787 | devlink_param_type_to_nla_type(enum devlink_param_type param_type) | |
2788 | { | |
2789 | switch (param_type) { | |
2790 | case DEVLINK_PARAM_TYPE_U8: | |
2791 | return NLA_U8; | |
2792 | case DEVLINK_PARAM_TYPE_U16: | |
2793 | return NLA_U16; | |
2794 | case DEVLINK_PARAM_TYPE_U32: | |
2795 | return NLA_U32; | |
2796 | case DEVLINK_PARAM_TYPE_STRING: | |
2797 | return NLA_STRING; | |
2798 | case DEVLINK_PARAM_TYPE_BOOL: | |
2799 | return NLA_FLAG; | |
2800 | default: | |
2801 | return -EINVAL; | |
2802 | } | |
2803 | } | |
2804 | ||
2805 | static int | |
2806 | devlink_nl_param_value_fill_one(struct sk_buff *msg, | |
2807 | enum devlink_param_type type, | |
2808 | enum devlink_param_cmode cmode, | |
2809 | union devlink_param_value val) | |
2810 | { | |
2811 | struct nlattr *param_value_attr; | |
2812 | ||
2813 | param_value_attr = nla_nest_start(msg, DEVLINK_ATTR_PARAM_VALUE); | |
2814 | if (!param_value_attr) | |
2815 | goto nla_put_failure; | |
2816 | ||
2817 | if (nla_put_u8(msg, DEVLINK_ATTR_PARAM_VALUE_CMODE, cmode)) | |
2818 | goto value_nest_cancel; | |
2819 | ||
2820 | switch (type) { | |
2821 | case DEVLINK_PARAM_TYPE_U8: | |
2822 | if (nla_put_u8(msg, DEVLINK_ATTR_PARAM_VALUE_DATA, val.vu8)) | |
2823 | goto value_nest_cancel; | |
2824 | break; | |
2825 | case DEVLINK_PARAM_TYPE_U16: | |
2826 | if (nla_put_u16(msg, DEVLINK_ATTR_PARAM_VALUE_DATA, val.vu16)) | |
2827 | goto value_nest_cancel; | |
2828 | break; | |
2829 | case DEVLINK_PARAM_TYPE_U32: | |
2830 | if (nla_put_u32(msg, DEVLINK_ATTR_PARAM_VALUE_DATA, val.vu32)) | |
2831 | goto value_nest_cancel; | |
2832 | break; | |
2833 | case DEVLINK_PARAM_TYPE_STRING: | |
2834 | if (nla_put_string(msg, DEVLINK_ATTR_PARAM_VALUE_DATA, | |
2835 | val.vstr)) | |
2836 | goto value_nest_cancel; | |
2837 | break; | |
2838 | case DEVLINK_PARAM_TYPE_BOOL: | |
2839 | if (val.vbool && | |
2840 | nla_put_flag(msg, DEVLINK_ATTR_PARAM_VALUE_DATA)) | |
2841 | goto value_nest_cancel; | |
2842 | break; | |
2843 | } | |
2844 | ||
2845 | nla_nest_end(msg, param_value_attr); | |
2846 | return 0; | |
2847 | ||
2848 | value_nest_cancel: | |
2849 | nla_nest_cancel(msg, param_value_attr); | |
2850 | nla_put_failure: | |
2851 | return -EMSGSIZE; | |
2852 | } | |
2853 | ||
2854 | static int devlink_nl_param_fill(struct sk_buff *msg, struct devlink *devlink, | |
f4601dee | 2855 | unsigned int port_index, |
45f05def MS |
2856 | struct devlink_param_item *param_item, |
2857 | enum devlink_command cmd, | |
2858 | u32 portid, u32 seq, int flags) | |
2859 | { | |
2860 | union devlink_param_value param_value[DEVLINK_PARAM_CMODE_MAX + 1]; | |
2861 | const struct devlink_param *param = param_item->param; | |
2862 | struct devlink_param_gset_ctx ctx; | |
2863 | struct nlattr *param_values_list; | |
2864 | struct nlattr *param_attr; | |
2865 | int nla_type; | |
2866 | void *hdr; | |
2867 | int err; | |
2868 | int i; | |
2869 | ||
2870 | /* Get value from driver part to driverinit configuration mode */ | |
2871 | for (i = 0; i <= DEVLINK_PARAM_CMODE_MAX; i++) { | |
2872 | if (!devlink_param_cmode_is_supported(param, i)) | |
2873 | continue; | |
2874 | if (i == DEVLINK_PARAM_CMODE_DRIVERINIT) { | |
2875 | if (!param_item->driverinit_value_valid) | |
2876 | return -EOPNOTSUPP; | |
2877 | param_value[i] = param_item->driverinit_value; | |
2878 | } else { | |
2879 | ctx.cmode = i; | |
2880 | err = devlink_param_get(devlink, param, &ctx); | |
2881 | if (err) | |
2882 | return err; | |
2883 | param_value[i] = ctx.val; | |
2884 | } | |
2885 | } | |
2886 | ||
2887 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
2888 | if (!hdr) | |
2889 | return -EMSGSIZE; | |
2890 | ||
2891 | if (devlink_nl_put_handle(msg, devlink)) | |
2892 | goto genlmsg_cancel; | |
f4601dee | 2893 | |
c1e5786d VV |
2894 | if (cmd == DEVLINK_CMD_PORT_PARAM_GET || |
2895 | cmd == DEVLINK_CMD_PORT_PARAM_NEW || | |
2896 | cmd == DEVLINK_CMD_PORT_PARAM_DEL) | |
f4601dee VV |
2897 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, port_index)) |
2898 | goto genlmsg_cancel; | |
2899 | ||
45f05def MS |
2900 | param_attr = nla_nest_start(msg, DEVLINK_ATTR_PARAM); |
2901 | if (!param_attr) | |
2902 | goto genlmsg_cancel; | |
2903 | if (nla_put_string(msg, DEVLINK_ATTR_PARAM_NAME, param->name)) | |
2904 | goto param_nest_cancel; | |
2905 | if (param->generic && nla_put_flag(msg, DEVLINK_ATTR_PARAM_GENERIC)) | |
2906 | goto param_nest_cancel; | |
2907 | ||
2908 | nla_type = devlink_param_type_to_nla_type(param->type); | |
2909 | if (nla_type < 0) | |
2910 | goto param_nest_cancel; | |
2911 | if (nla_put_u8(msg, DEVLINK_ATTR_PARAM_TYPE, nla_type)) | |
2912 | goto param_nest_cancel; | |
2913 | ||
2914 | param_values_list = nla_nest_start(msg, DEVLINK_ATTR_PARAM_VALUES_LIST); | |
2915 | if (!param_values_list) | |
2916 | goto param_nest_cancel; | |
2917 | ||
2918 | for (i = 0; i <= DEVLINK_PARAM_CMODE_MAX; i++) { | |
2919 | if (!devlink_param_cmode_is_supported(param, i)) | |
2920 | continue; | |
2921 | err = devlink_nl_param_value_fill_one(msg, param->type, | |
2922 | i, param_value[i]); | |
2923 | if (err) | |
2924 | goto values_list_nest_cancel; | |
2925 | } | |
2926 | ||
2927 | nla_nest_end(msg, param_values_list); | |
2928 | nla_nest_end(msg, param_attr); | |
2929 | genlmsg_end(msg, hdr); | |
2930 | return 0; | |
2931 | ||
2932 | values_list_nest_cancel: | |
2933 | nla_nest_end(msg, param_values_list); | |
2934 | param_nest_cancel: | |
2935 | nla_nest_cancel(msg, param_attr); | |
2936 | genlmsg_cancel: | |
2937 | genlmsg_cancel(msg, hdr); | |
2938 | return -EMSGSIZE; | |
2939 | } | |
2940 | ||
ea601e17 | 2941 | static void devlink_param_notify(struct devlink *devlink, |
c1e5786d | 2942 | unsigned int port_index, |
ea601e17 MS |
2943 | struct devlink_param_item *param_item, |
2944 | enum devlink_command cmd) | |
2945 | { | |
2946 | struct sk_buff *msg; | |
2947 | int err; | |
2948 | ||
c1e5786d VV |
2949 | WARN_ON(cmd != DEVLINK_CMD_PARAM_NEW && cmd != DEVLINK_CMD_PARAM_DEL && |
2950 | cmd != DEVLINK_CMD_PORT_PARAM_NEW && | |
2951 | cmd != DEVLINK_CMD_PORT_PARAM_DEL); | |
ea601e17 MS |
2952 | |
2953 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
2954 | if (!msg) | |
2955 | return; | |
c1e5786d VV |
2956 | err = devlink_nl_param_fill(msg, devlink, port_index, param_item, cmd, |
2957 | 0, 0, 0); | |
ea601e17 MS |
2958 | if (err) { |
2959 | nlmsg_free(msg); | |
2960 | return; | |
2961 | } | |
2962 | ||
2963 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), | |
2964 | msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
2965 | } | |
2966 | ||
45f05def MS |
2967 | static int devlink_nl_cmd_param_get_dumpit(struct sk_buff *msg, |
2968 | struct netlink_callback *cb) | |
2969 | { | |
2970 | struct devlink_param_item *param_item; | |
2971 | struct devlink *devlink; | |
2972 | int start = cb->args[0]; | |
2973 | int idx = 0; | |
2974 | int err; | |
2975 | ||
2976 | mutex_lock(&devlink_mutex); | |
2977 | list_for_each_entry(devlink, &devlink_list, list) { | |
2978 | if (!net_eq(devlink_net(devlink), sock_net(msg->sk))) | |
2979 | continue; | |
2980 | mutex_lock(&devlink->lock); | |
2981 | list_for_each_entry(param_item, &devlink->param_list, list) { | |
2982 | if (idx < start) { | |
2983 | idx++; | |
2984 | continue; | |
2985 | } | |
f4601dee | 2986 | err = devlink_nl_param_fill(msg, devlink, 0, param_item, |
45f05def MS |
2987 | DEVLINK_CMD_PARAM_GET, |
2988 | NETLINK_CB(cb->skb).portid, | |
2989 | cb->nlh->nlmsg_seq, | |
2990 | NLM_F_MULTI); | |
2991 | if (err) { | |
2992 | mutex_unlock(&devlink->lock); | |
2993 | goto out; | |
2994 | } | |
2995 | idx++; | |
2996 | } | |
2997 | mutex_unlock(&devlink->lock); | |
2998 | } | |
2999 | out: | |
3000 | mutex_unlock(&devlink_mutex); | |
3001 | ||
3002 | cb->args[0] = idx; | |
3003 | return msg->len; | |
3004 | } | |
3005 | ||
e3b7ca18 MS |
3006 | static int |
3007 | devlink_param_type_get_from_info(struct genl_info *info, | |
3008 | enum devlink_param_type *param_type) | |
3009 | { | |
3010 | if (!info->attrs[DEVLINK_ATTR_PARAM_TYPE]) | |
3011 | return -EINVAL; | |
3012 | ||
3013 | switch (nla_get_u8(info->attrs[DEVLINK_ATTR_PARAM_TYPE])) { | |
3014 | case NLA_U8: | |
3015 | *param_type = DEVLINK_PARAM_TYPE_U8; | |
3016 | break; | |
3017 | case NLA_U16: | |
3018 | *param_type = DEVLINK_PARAM_TYPE_U16; | |
3019 | break; | |
3020 | case NLA_U32: | |
3021 | *param_type = DEVLINK_PARAM_TYPE_U32; | |
3022 | break; | |
3023 | case NLA_STRING: | |
3024 | *param_type = DEVLINK_PARAM_TYPE_STRING; | |
3025 | break; | |
3026 | case NLA_FLAG: | |
3027 | *param_type = DEVLINK_PARAM_TYPE_BOOL; | |
3028 | break; | |
3029 | default: | |
3030 | return -EINVAL; | |
3031 | } | |
3032 | ||
3033 | return 0; | |
3034 | } | |
3035 | ||
3036 | static int | |
3037 | devlink_param_value_get_from_info(const struct devlink_param *param, | |
3038 | struct genl_info *info, | |
3039 | union devlink_param_value *value) | |
3040 | { | |
f355cfcd MS |
3041 | int len; |
3042 | ||
e3b7ca18 MS |
3043 | if (param->type != DEVLINK_PARAM_TYPE_BOOL && |
3044 | !info->attrs[DEVLINK_ATTR_PARAM_VALUE_DATA]) | |
3045 | return -EINVAL; | |
3046 | ||
3047 | switch (param->type) { | |
3048 | case DEVLINK_PARAM_TYPE_U8: | |
3049 | value->vu8 = nla_get_u8(info->attrs[DEVLINK_ATTR_PARAM_VALUE_DATA]); | |
3050 | break; | |
3051 | case DEVLINK_PARAM_TYPE_U16: | |
3052 | value->vu16 = nla_get_u16(info->attrs[DEVLINK_ATTR_PARAM_VALUE_DATA]); | |
3053 | break; | |
3054 | case DEVLINK_PARAM_TYPE_U32: | |
3055 | value->vu32 = nla_get_u32(info->attrs[DEVLINK_ATTR_PARAM_VALUE_DATA]); | |
3056 | break; | |
3057 | case DEVLINK_PARAM_TYPE_STRING: | |
f355cfcd MS |
3058 | len = strnlen(nla_data(info->attrs[DEVLINK_ATTR_PARAM_VALUE_DATA]), |
3059 | nla_len(info->attrs[DEVLINK_ATTR_PARAM_VALUE_DATA])); | |
3060 | if (len == nla_len(info->attrs[DEVLINK_ATTR_PARAM_VALUE_DATA]) || | |
bde74ad1 | 3061 | len >= __DEVLINK_PARAM_MAX_STRING_VALUE) |
e3b7ca18 | 3062 | return -EINVAL; |
f355cfcd MS |
3063 | strcpy(value->vstr, |
3064 | nla_data(info->attrs[DEVLINK_ATTR_PARAM_VALUE_DATA])); | |
e3b7ca18 MS |
3065 | break; |
3066 | case DEVLINK_PARAM_TYPE_BOOL: | |
3067 | value->vbool = info->attrs[DEVLINK_ATTR_PARAM_VALUE_DATA] ? | |
3068 | true : false; | |
3069 | break; | |
3070 | } | |
3071 | return 0; | |
3072 | } | |
3073 | ||
45f05def | 3074 | static struct devlink_param_item * |
f4601dee | 3075 | devlink_param_get_from_info(struct list_head *param_list, |
45f05def MS |
3076 | struct genl_info *info) |
3077 | { | |
3078 | char *param_name; | |
3079 | ||
3080 | if (!info->attrs[DEVLINK_ATTR_PARAM_NAME]) | |
3081 | return NULL; | |
3082 | ||
3083 | param_name = nla_data(info->attrs[DEVLINK_ATTR_PARAM_NAME]); | |
f4601dee | 3084 | return devlink_param_find_by_name(param_list, param_name); |
45f05def MS |
3085 | } |
3086 | ||
3087 | static int devlink_nl_cmd_param_get_doit(struct sk_buff *skb, | |
3088 | struct genl_info *info) | |
3089 | { | |
3090 | struct devlink *devlink = info->user_ptr[0]; | |
3091 | struct devlink_param_item *param_item; | |
3092 | struct sk_buff *msg; | |
3093 | int err; | |
3094 | ||
f4601dee | 3095 | param_item = devlink_param_get_from_info(&devlink->param_list, info); |
45f05def MS |
3096 | if (!param_item) |
3097 | return -EINVAL; | |
3098 | ||
3099 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
3100 | if (!msg) | |
3101 | return -ENOMEM; | |
3102 | ||
f4601dee | 3103 | err = devlink_nl_param_fill(msg, devlink, 0, param_item, |
45f05def MS |
3104 | DEVLINK_CMD_PARAM_GET, |
3105 | info->snd_portid, info->snd_seq, 0); | |
3106 | if (err) { | |
3107 | nlmsg_free(msg); | |
3108 | return err; | |
3109 | } | |
3110 | ||
3111 | return genlmsg_reply(msg, info); | |
3112 | } | |
3113 | ||
9c54873b | 3114 | static int __devlink_nl_cmd_param_set_doit(struct devlink *devlink, |
c1e5786d | 3115 | unsigned int port_index, |
9c54873b VV |
3116 | struct list_head *param_list, |
3117 | struct genl_info *info, | |
3118 | enum devlink_command cmd) | |
e3b7ca18 | 3119 | { |
e3b7ca18 MS |
3120 | enum devlink_param_type param_type; |
3121 | struct devlink_param_gset_ctx ctx; | |
3122 | enum devlink_param_cmode cmode; | |
3123 | struct devlink_param_item *param_item; | |
3124 | const struct devlink_param *param; | |
3125 | union devlink_param_value value; | |
3126 | int err = 0; | |
3127 | ||
9c54873b | 3128 | param_item = devlink_param_get_from_info(param_list, info); |
e3b7ca18 MS |
3129 | if (!param_item) |
3130 | return -EINVAL; | |
3131 | param = param_item->param; | |
3132 | err = devlink_param_type_get_from_info(info, ¶m_type); | |
3133 | if (err) | |
3134 | return err; | |
3135 | if (param_type != param->type) | |
3136 | return -EINVAL; | |
3137 | err = devlink_param_value_get_from_info(param, info, &value); | |
3138 | if (err) | |
3139 | return err; | |
3140 | if (param->validate) { | |
3141 | err = param->validate(devlink, param->id, value, info->extack); | |
3142 | if (err) | |
3143 | return err; | |
3144 | } | |
3145 | ||
3146 | if (!info->attrs[DEVLINK_ATTR_PARAM_VALUE_CMODE]) | |
3147 | return -EINVAL; | |
3148 | cmode = nla_get_u8(info->attrs[DEVLINK_ATTR_PARAM_VALUE_CMODE]); | |
3149 | if (!devlink_param_cmode_is_supported(param, cmode)) | |
3150 | return -EOPNOTSUPP; | |
3151 | ||
3152 | if (cmode == DEVLINK_PARAM_CMODE_DRIVERINIT) { | |
1276534c MS |
3153 | if (param->type == DEVLINK_PARAM_TYPE_STRING) |
3154 | strcpy(param_item->driverinit_value.vstr, value.vstr); | |
3155 | else | |
3156 | param_item->driverinit_value = value; | |
e3b7ca18 MS |
3157 | param_item->driverinit_value_valid = true; |
3158 | } else { | |
3159 | if (!param->set) | |
3160 | return -EOPNOTSUPP; | |
3161 | ctx.val = value; | |
3162 | ctx.cmode = cmode; | |
3163 | err = devlink_param_set(devlink, param, &ctx); | |
3164 | if (err) | |
3165 | return err; | |
3166 | } | |
3167 | ||
c1e5786d | 3168 | devlink_param_notify(devlink, port_index, param_item, cmd); |
e3b7ca18 MS |
3169 | return 0; |
3170 | } | |
3171 | ||
9c54873b VV |
3172 | static int devlink_nl_cmd_param_set_doit(struct sk_buff *skb, |
3173 | struct genl_info *info) | |
3174 | { | |
3175 | struct devlink *devlink = info->user_ptr[0]; | |
3176 | ||
c1e5786d | 3177 | return __devlink_nl_cmd_param_set_doit(devlink, 0, &devlink->param_list, |
9c54873b VV |
3178 | info, DEVLINK_CMD_PARAM_NEW); |
3179 | } | |
3180 | ||
eabaef18 | 3181 | static int devlink_param_register_one(struct devlink *devlink, |
c1e5786d | 3182 | unsigned int port_index, |
39e6160e | 3183 | struct list_head *param_list, |
c1e5786d VV |
3184 | const struct devlink_param *param, |
3185 | enum devlink_command cmd) | |
eabaef18 MS |
3186 | { |
3187 | struct devlink_param_item *param_item; | |
3188 | ||
39e6160e | 3189 | if (devlink_param_find_by_name(param_list, param->name)) |
eabaef18 MS |
3190 | return -EEXIST; |
3191 | ||
3192 | if (param->supported_cmodes == BIT(DEVLINK_PARAM_CMODE_DRIVERINIT)) | |
3193 | WARN_ON(param->get || param->set); | |
3194 | else | |
3195 | WARN_ON(!param->get || !param->set); | |
3196 | ||
3197 | param_item = kzalloc(sizeof(*param_item), GFP_KERNEL); | |
3198 | if (!param_item) | |
3199 | return -ENOMEM; | |
3200 | param_item->param = param; | |
3201 | ||
39e6160e | 3202 | list_add_tail(¶m_item->list, param_list); |
c1e5786d | 3203 | devlink_param_notify(devlink, port_index, param_item, cmd); |
eabaef18 MS |
3204 | return 0; |
3205 | } | |
3206 | ||
3207 | static void devlink_param_unregister_one(struct devlink *devlink, | |
c1e5786d | 3208 | unsigned int port_index, |
39e6160e | 3209 | struct list_head *param_list, |
c1e5786d VV |
3210 | const struct devlink_param *param, |
3211 | enum devlink_command cmd) | |
eabaef18 MS |
3212 | { |
3213 | struct devlink_param_item *param_item; | |
3214 | ||
39e6160e | 3215 | param_item = devlink_param_find_by_name(param_list, param->name); |
eabaef18 | 3216 | WARN_ON(!param_item); |
c1e5786d | 3217 | devlink_param_notify(devlink, port_index, param_item, cmd); |
eabaef18 MS |
3218 | list_del(¶m_item->list); |
3219 | kfree(param_item); | |
3220 | } | |
3221 | ||
f4601dee VV |
3222 | static int devlink_nl_cmd_port_param_get_dumpit(struct sk_buff *msg, |
3223 | struct netlink_callback *cb) | |
3224 | { | |
3225 | struct devlink_param_item *param_item; | |
3226 | struct devlink_port *devlink_port; | |
3227 | struct devlink *devlink; | |
3228 | int start = cb->args[0]; | |
3229 | int idx = 0; | |
3230 | int err; | |
3231 | ||
3232 | mutex_lock(&devlink_mutex); | |
3233 | list_for_each_entry(devlink, &devlink_list, list) { | |
3234 | if (!net_eq(devlink_net(devlink), sock_net(msg->sk))) | |
3235 | continue; | |
3236 | mutex_lock(&devlink->lock); | |
3237 | list_for_each_entry(devlink_port, &devlink->port_list, list) { | |
3238 | list_for_each_entry(param_item, | |
3239 | &devlink_port->param_list, list) { | |
3240 | if (idx < start) { | |
3241 | idx++; | |
3242 | continue; | |
3243 | } | |
3244 | err = devlink_nl_param_fill(msg, | |
3245 | devlink_port->devlink, | |
3246 | devlink_port->index, param_item, | |
3247 | DEVLINK_CMD_PORT_PARAM_GET, | |
3248 | NETLINK_CB(cb->skb).portid, | |
3249 | cb->nlh->nlmsg_seq, | |
3250 | NLM_F_MULTI); | |
3251 | if (err) { | |
3252 | mutex_unlock(&devlink->lock); | |
3253 | goto out; | |
3254 | } | |
3255 | idx++; | |
3256 | } | |
3257 | } | |
3258 | mutex_unlock(&devlink->lock); | |
3259 | } | |
3260 | out: | |
3261 | mutex_unlock(&devlink_mutex); | |
3262 | ||
3263 | cb->args[0] = idx; | |
3264 | return msg->len; | |
3265 | } | |
3266 | ||
3267 | static int devlink_nl_cmd_port_param_get_doit(struct sk_buff *skb, | |
3268 | struct genl_info *info) | |
3269 | { | |
3270 | struct devlink_port *devlink_port = info->user_ptr[0]; | |
3271 | struct devlink_param_item *param_item; | |
3272 | struct sk_buff *msg; | |
3273 | int err; | |
3274 | ||
3275 | param_item = devlink_param_get_from_info(&devlink_port->param_list, | |
3276 | info); | |
3277 | if (!param_item) | |
3278 | return -EINVAL; | |
3279 | ||
3280 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
3281 | if (!msg) | |
3282 | return -ENOMEM; | |
3283 | ||
3284 | err = devlink_nl_param_fill(msg, devlink_port->devlink, | |
3285 | devlink_port->index, param_item, | |
3286 | DEVLINK_CMD_PORT_PARAM_GET, | |
3287 | info->snd_portid, info->snd_seq, 0); | |
3288 | if (err) { | |
3289 | nlmsg_free(msg); | |
3290 | return err; | |
3291 | } | |
3292 | ||
3293 | return genlmsg_reply(msg, info); | |
3294 | } | |
3295 | ||
9c54873b VV |
3296 | static int devlink_nl_cmd_port_param_set_doit(struct sk_buff *skb, |
3297 | struct genl_info *info) | |
3298 | { | |
3299 | struct devlink_port *devlink_port = info->user_ptr[0]; | |
3300 | ||
3301 | return __devlink_nl_cmd_param_set_doit(devlink_port->devlink, | |
c1e5786d VV |
3302 | devlink_port->index, |
3303 | &devlink_port->param_list, info, | |
3304 | DEVLINK_CMD_PORT_PARAM_NEW); | |
9c54873b VV |
3305 | } |
3306 | ||
a006d467 AV |
3307 | static int devlink_nl_region_snapshot_id_put(struct sk_buff *msg, |
3308 | struct devlink *devlink, | |
3309 | struct devlink_snapshot *snapshot) | |
3310 | { | |
3311 | struct nlattr *snap_attr; | |
3312 | int err; | |
3313 | ||
3314 | snap_attr = nla_nest_start(msg, DEVLINK_ATTR_REGION_SNAPSHOT); | |
3315 | if (!snap_attr) | |
3316 | return -EINVAL; | |
3317 | ||
3318 | err = nla_put_u32(msg, DEVLINK_ATTR_REGION_SNAPSHOT_ID, snapshot->id); | |
3319 | if (err) | |
3320 | goto nla_put_failure; | |
3321 | ||
3322 | nla_nest_end(msg, snap_attr); | |
3323 | return 0; | |
3324 | ||
3325 | nla_put_failure: | |
3326 | nla_nest_cancel(msg, snap_attr); | |
3327 | return err; | |
3328 | } | |
3329 | ||
3330 | static int devlink_nl_region_snapshots_id_put(struct sk_buff *msg, | |
3331 | struct devlink *devlink, | |
3332 | struct devlink_region *region) | |
3333 | { | |
3334 | struct devlink_snapshot *snapshot; | |
3335 | struct nlattr *snapshots_attr; | |
3336 | int err; | |
3337 | ||
3338 | snapshots_attr = nla_nest_start(msg, DEVLINK_ATTR_REGION_SNAPSHOTS); | |
3339 | if (!snapshots_attr) | |
3340 | return -EINVAL; | |
3341 | ||
3342 | list_for_each_entry(snapshot, ®ion->snapshot_list, list) { | |
3343 | err = devlink_nl_region_snapshot_id_put(msg, devlink, snapshot); | |
3344 | if (err) | |
3345 | goto nla_put_failure; | |
3346 | } | |
3347 | ||
3348 | nla_nest_end(msg, snapshots_attr); | |
3349 | return 0; | |
3350 | ||
3351 | nla_put_failure: | |
3352 | nla_nest_cancel(msg, snapshots_attr); | |
3353 | return err; | |
3354 | } | |
3355 | ||
d8db7ea5 AV |
3356 | static int devlink_nl_region_fill(struct sk_buff *msg, struct devlink *devlink, |
3357 | enum devlink_command cmd, u32 portid, | |
3358 | u32 seq, int flags, | |
3359 | struct devlink_region *region) | |
3360 | { | |
3361 | void *hdr; | |
3362 | int err; | |
3363 | ||
3364 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
3365 | if (!hdr) | |
3366 | return -EMSGSIZE; | |
3367 | ||
3368 | err = devlink_nl_put_handle(msg, devlink); | |
3369 | if (err) | |
3370 | goto nla_put_failure; | |
3371 | ||
3372 | err = nla_put_string(msg, DEVLINK_ATTR_REGION_NAME, region->name); | |
3373 | if (err) | |
3374 | goto nla_put_failure; | |
3375 | ||
3376 | err = nla_put_u64_64bit(msg, DEVLINK_ATTR_REGION_SIZE, | |
3377 | region->size, | |
3378 | DEVLINK_ATTR_PAD); | |
3379 | if (err) | |
3380 | goto nla_put_failure; | |
3381 | ||
a006d467 AV |
3382 | err = devlink_nl_region_snapshots_id_put(msg, devlink, region); |
3383 | if (err) | |
3384 | goto nla_put_failure; | |
3385 | ||
d8db7ea5 AV |
3386 | genlmsg_end(msg, hdr); |
3387 | return 0; | |
3388 | ||
3389 | nla_put_failure: | |
3390 | genlmsg_cancel(msg, hdr); | |
3391 | return err; | |
3392 | } | |
3393 | ||
866319bb AV |
3394 | static void devlink_nl_region_notify(struct devlink_region *region, |
3395 | struct devlink_snapshot *snapshot, | |
3396 | enum devlink_command cmd) | |
3397 | { | |
3398 | struct devlink *devlink = region->devlink; | |
3399 | struct sk_buff *msg; | |
3400 | void *hdr; | |
3401 | int err; | |
3402 | ||
3403 | WARN_ON(cmd != DEVLINK_CMD_REGION_NEW && cmd != DEVLINK_CMD_REGION_DEL); | |
3404 | ||
3405 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
3406 | if (!msg) | |
3407 | return; | |
3408 | ||
3409 | hdr = genlmsg_put(msg, 0, 0, &devlink_nl_family, 0, cmd); | |
3410 | if (!hdr) | |
3411 | goto out_free_msg; | |
3412 | ||
3413 | err = devlink_nl_put_handle(msg, devlink); | |
3414 | if (err) | |
3415 | goto out_cancel_msg; | |
3416 | ||
3417 | err = nla_put_string(msg, DEVLINK_ATTR_REGION_NAME, | |
3418 | region->name); | |
3419 | if (err) | |
3420 | goto out_cancel_msg; | |
3421 | ||
3422 | if (snapshot) { | |
3423 | err = nla_put_u32(msg, DEVLINK_ATTR_REGION_SNAPSHOT_ID, | |
3424 | snapshot->id); | |
3425 | if (err) | |
3426 | goto out_cancel_msg; | |
3427 | } else { | |
3428 | err = nla_put_u64_64bit(msg, DEVLINK_ATTR_REGION_SIZE, | |
3429 | region->size, DEVLINK_ATTR_PAD); | |
3430 | if (err) | |
3431 | goto out_cancel_msg; | |
3432 | } | |
3433 | genlmsg_end(msg, hdr); | |
3434 | ||
3435 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), | |
3436 | msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
3437 | ||
3438 | return; | |
3439 | ||
3440 | out_cancel_msg: | |
3441 | genlmsg_cancel(msg, hdr); | |
3442 | out_free_msg: | |
3443 | nlmsg_free(msg); | |
3444 | } | |
3445 | ||
d8db7ea5 AV |
3446 | static int devlink_nl_cmd_region_get_doit(struct sk_buff *skb, |
3447 | struct genl_info *info) | |
3448 | { | |
3449 | struct devlink *devlink = info->user_ptr[0]; | |
3450 | struct devlink_region *region; | |
3451 | const char *region_name; | |
3452 | struct sk_buff *msg; | |
3453 | int err; | |
3454 | ||
3455 | if (!info->attrs[DEVLINK_ATTR_REGION_NAME]) | |
3456 | return -EINVAL; | |
3457 | ||
3458 | region_name = nla_data(info->attrs[DEVLINK_ATTR_REGION_NAME]); | |
3459 | region = devlink_region_get_by_name(devlink, region_name); | |
3460 | if (!region) | |
3461 | return -EINVAL; | |
3462 | ||
3463 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
3464 | if (!msg) | |
3465 | return -ENOMEM; | |
3466 | ||
3467 | err = devlink_nl_region_fill(msg, devlink, DEVLINK_CMD_REGION_GET, | |
3468 | info->snd_portid, info->snd_seq, 0, | |
3469 | region); | |
3470 | if (err) { | |
3471 | nlmsg_free(msg); | |
3472 | return err; | |
3473 | } | |
3474 | ||
3475 | return genlmsg_reply(msg, info); | |
3476 | } | |
3477 | ||
3478 | static int devlink_nl_cmd_region_get_dumpit(struct sk_buff *msg, | |
3479 | struct netlink_callback *cb) | |
3480 | { | |
3481 | struct devlink_region *region; | |
3482 | struct devlink *devlink; | |
3483 | int start = cb->args[0]; | |
3484 | int idx = 0; | |
3485 | int err; | |
3486 | ||
3487 | mutex_lock(&devlink_mutex); | |
3488 | list_for_each_entry(devlink, &devlink_list, list) { | |
3489 | if (!net_eq(devlink_net(devlink), sock_net(msg->sk))) | |
3490 | continue; | |
3491 | ||
3492 | mutex_lock(&devlink->lock); | |
3493 | list_for_each_entry(region, &devlink->region_list, list) { | |
3494 | if (idx < start) { | |
3495 | idx++; | |
3496 | continue; | |
3497 | } | |
3498 | err = devlink_nl_region_fill(msg, devlink, | |
3499 | DEVLINK_CMD_REGION_GET, | |
3500 | NETLINK_CB(cb->skb).portid, | |
3501 | cb->nlh->nlmsg_seq, | |
3502 | NLM_F_MULTI, region); | |
3503 | if (err) { | |
3504 | mutex_unlock(&devlink->lock); | |
3505 | goto out; | |
3506 | } | |
3507 | idx++; | |
3508 | } | |
3509 | mutex_unlock(&devlink->lock); | |
3510 | } | |
3511 | out: | |
3512 | mutex_unlock(&devlink_mutex); | |
3513 | cb->args[0] = idx; | |
3514 | return msg->len; | |
3515 | } | |
3516 | ||
866319bb AV |
3517 | static int devlink_nl_cmd_region_del(struct sk_buff *skb, |
3518 | struct genl_info *info) | |
3519 | { | |
3520 | struct devlink *devlink = info->user_ptr[0]; | |
3521 | struct devlink_snapshot *snapshot; | |
3522 | struct devlink_region *region; | |
3523 | const char *region_name; | |
3524 | u32 snapshot_id; | |
3525 | ||
3526 | if (!info->attrs[DEVLINK_ATTR_REGION_NAME] || | |
3527 | !info->attrs[DEVLINK_ATTR_REGION_SNAPSHOT_ID]) | |
3528 | return -EINVAL; | |
3529 | ||
3530 | region_name = nla_data(info->attrs[DEVLINK_ATTR_REGION_NAME]); | |
3531 | snapshot_id = nla_get_u32(info->attrs[DEVLINK_ATTR_REGION_SNAPSHOT_ID]); | |
3532 | ||
3533 | region = devlink_region_get_by_name(devlink, region_name); | |
3534 | if (!region) | |
3535 | return -EINVAL; | |
3536 | ||
3537 | snapshot = devlink_region_snapshot_get_by_id(region, snapshot_id); | |
3538 | if (!snapshot) | |
3539 | return -EINVAL; | |
3540 | ||
3541 | devlink_nl_region_notify(region, snapshot, DEVLINK_CMD_REGION_DEL); | |
3542 | devlink_region_snapshot_del(snapshot); | |
3543 | return 0; | |
3544 | } | |
3545 | ||
4e54795a AV |
3546 | static int devlink_nl_cmd_region_read_chunk_fill(struct sk_buff *msg, |
3547 | struct devlink *devlink, | |
3548 | u8 *chunk, u32 chunk_size, | |
3549 | u64 addr) | |
3550 | { | |
3551 | struct nlattr *chunk_attr; | |
3552 | int err; | |
3553 | ||
3554 | chunk_attr = nla_nest_start(msg, DEVLINK_ATTR_REGION_CHUNK); | |
3555 | if (!chunk_attr) | |
3556 | return -EINVAL; | |
3557 | ||
3558 | err = nla_put(msg, DEVLINK_ATTR_REGION_CHUNK_DATA, chunk_size, chunk); | |
3559 | if (err) | |
3560 | goto nla_put_failure; | |
3561 | ||
3562 | err = nla_put_u64_64bit(msg, DEVLINK_ATTR_REGION_CHUNK_ADDR, addr, | |
3563 | DEVLINK_ATTR_PAD); | |
3564 | if (err) | |
3565 | goto nla_put_failure; | |
3566 | ||
3567 | nla_nest_end(msg, chunk_attr); | |
3568 | return 0; | |
3569 | ||
3570 | nla_put_failure: | |
3571 | nla_nest_cancel(msg, chunk_attr); | |
3572 | return err; | |
3573 | } | |
3574 | ||
3575 | #define DEVLINK_REGION_READ_CHUNK_SIZE 256 | |
3576 | ||
3577 | static int devlink_nl_region_read_snapshot_fill(struct sk_buff *skb, | |
3578 | struct devlink *devlink, | |
3579 | struct devlink_region *region, | |
3580 | struct nlattr **attrs, | |
3581 | u64 start_offset, | |
3582 | u64 end_offset, | |
3583 | bool dump, | |
3584 | u64 *new_offset) | |
3585 | { | |
3586 | struct devlink_snapshot *snapshot; | |
3587 | u64 curr_offset = start_offset; | |
3588 | u32 snapshot_id; | |
3589 | int err = 0; | |
3590 | ||
3591 | *new_offset = start_offset; | |
3592 | ||
3593 | snapshot_id = nla_get_u32(attrs[DEVLINK_ATTR_REGION_SNAPSHOT_ID]); | |
3594 | snapshot = devlink_region_snapshot_get_by_id(region, snapshot_id); | |
3595 | if (!snapshot) | |
3596 | return -EINVAL; | |
3597 | ||
3598 | if (end_offset > snapshot->data_len || dump) | |
3599 | end_offset = snapshot->data_len; | |
3600 | ||
3601 | while (curr_offset < end_offset) { | |
3602 | u32 data_size; | |
3603 | u8 *data; | |
3604 | ||
3605 | if (end_offset - curr_offset < DEVLINK_REGION_READ_CHUNK_SIZE) | |
3606 | data_size = end_offset - curr_offset; | |
3607 | else | |
3608 | data_size = DEVLINK_REGION_READ_CHUNK_SIZE; | |
3609 | ||
3610 | data = &snapshot->data[curr_offset]; | |
3611 | err = devlink_nl_cmd_region_read_chunk_fill(skb, devlink, | |
3612 | data, data_size, | |
3613 | curr_offset); | |
3614 | if (err) | |
3615 | break; | |
3616 | ||
3617 | curr_offset += data_size; | |
3618 | } | |
3619 | *new_offset = curr_offset; | |
3620 | ||
3621 | return err; | |
3622 | } | |
3623 | ||
3624 | static int devlink_nl_cmd_region_read_dumpit(struct sk_buff *skb, | |
3625 | struct netlink_callback *cb) | |
3626 | { | |
3627 | u64 ret_offset, start_offset, end_offset = 0; | |
3628 | struct nlattr *attrs[DEVLINK_ATTR_MAX + 1]; | |
3629 | const struct genl_ops *ops = cb->data; | |
3630 | struct devlink_region *region; | |
3631 | struct nlattr *chunks_attr; | |
3632 | const char *region_name; | |
3633 | struct devlink *devlink; | |
3634 | bool dump = true; | |
3635 | void *hdr; | |
3636 | int err; | |
3637 | ||
3638 | start_offset = *((u64 *)&cb->args[0]); | |
3639 | ||
3640 | err = nlmsg_parse(cb->nlh, GENL_HDRLEN + devlink_nl_family.hdrsize, | |
dac9c979 | 3641 | attrs, DEVLINK_ATTR_MAX, ops->policy, cb->extack); |
4e54795a AV |
3642 | if (err) |
3643 | goto out; | |
3644 | ||
3645 | devlink = devlink_get_from_attrs(sock_net(cb->skb->sk), attrs); | |
3646 | if (IS_ERR(devlink)) | |
3647 | goto out; | |
3648 | ||
3649 | mutex_lock(&devlink_mutex); | |
3650 | mutex_lock(&devlink->lock); | |
3651 | ||
3652 | if (!attrs[DEVLINK_ATTR_REGION_NAME] || | |
3653 | !attrs[DEVLINK_ATTR_REGION_SNAPSHOT_ID]) | |
3654 | goto out_unlock; | |
3655 | ||
3656 | region_name = nla_data(attrs[DEVLINK_ATTR_REGION_NAME]); | |
3657 | region = devlink_region_get_by_name(devlink, region_name); | |
3658 | if (!region) | |
3659 | goto out_unlock; | |
3660 | ||
3661 | hdr = genlmsg_put(skb, NETLINK_CB(cb->skb).portid, cb->nlh->nlmsg_seq, | |
3662 | &devlink_nl_family, NLM_F_ACK | NLM_F_MULTI, | |
3663 | DEVLINK_CMD_REGION_READ); | |
3664 | if (!hdr) | |
3665 | goto out_unlock; | |
3666 | ||
3667 | err = devlink_nl_put_handle(skb, devlink); | |
3668 | if (err) | |
3669 | goto nla_put_failure; | |
3670 | ||
3671 | err = nla_put_string(skb, DEVLINK_ATTR_REGION_NAME, region_name); | |
3672 | if (err) | |
3673 | goto nla_put_failure; | |
3674 | ||
3675 | chunks_attr = nla_nest_start(skb, DEVLINK_ATTR_REGION_CHUNKS); | |
3676 | if (!chunks_attr) | |
3677 | goto nla_put_failure; | |
3678 | ||
3679 | if (attrs[DEVLINK_ATTR_REGION_CHUNK_ADDR] && | |
3680 | attrs[DEVLINK_ATTR_REGION_CHUNK_LEN]) { | |
3681 | if (!start_offset) | |
3682 | start_offset = | |
3683 | nla_get_u64(attrs[DEVLINK_ATTR_REGION_CHUNK_ADDR]); | |
3684 | ||
3685 | end_offset = nla_get_u64(attrs[DEVLINK_ATTR_REGION_CHUNK_ADDR]); | |
3686 | end_offset += nla_get_u64(attrs[DEVLINK_ATTR_REGION_CHUNK_LEN]); | |
3687 | dump = false; | |
3688 | } | |
3689 | ||
3690 | err = devlink_nl_region_read_snapshot_fill(skb, devlink, | |
3691 | region, attrs, | |
3692 | start_offset, | |
3693 | end_offset, dump, | |
3694 | &ret_offset); | |
3695 | ||
3696 | if (err && err != -EMSGSIZE) | |
3697 | goto nla_put_failure; | |
3698 | ||
3699 | /* Check if there was any progress done to prevent infinite loop */ | |
3700 | if (ret_offset == start_offset) | |
3701 | goto nla_put_failure; | |
3702 | ||
3703 | *((u64 *)&cb->args[0]) = ret_offset; | |
3704 | ||
3705 | nla_nest_end(skb, chunks_attr); | |
3706 | genlmsg_end(skb, hdr); | |
3707 | mutex_unlock(&devlink->lock); | |
3708 | mutex_unlock(&devlink_mutex); | |
3709 | ||
3710 | return skb->len; | |
3711 | ||
3712 | nla_put_failure: | |
3713 | genlmsg_cancel(skb, hdr); | |
3714 | out_unlock: | |
3715 | mutex_unlock(&devlink->lock); | |
3716 | mutex_unlock(&devlink_mutex); | |
3717 | out: | |
3718 | return 0; | |
3719 | } | |
3720 | ||
f9cf2288 JK |
3721 | struct devlink_info_req { |
3722 | struct sk_buff *msg; | |
3723 | }; | |
3724 | ||
3725 | int devlink_info_driver_name_put(struct devlink_info_req *req, const char *name) | |
3726 | { | |
3727 | return nla_put_string(req->msg, DEVLINK_ATTR_INFO_DRIVER_NAME, name); | |
3728 | } | |
3729 | EXPORT_SYMBOL_GPL(devlink_info_driver_name_put); | |
3730 | ||
3731 | int devlink_info_serial_number_put(struct devlink_info_req *req, const char *sn) | |
3732 | { | |
3733 | return nla_put_string(req->msg, DEVLINK_ATTR_INFO_SERIAL_NUMBER, sn); | |
3734 | } | |
3735 | EXPORT_SYMBOL_GPL(devlink_info_serial_number_put); | |
3736 | ||
fc6fae7d JK |
3737 | static int devlink_info_version_put(struct devlink_info_req *req, int attr, |
3738 | const char *version_name, | |
3739 | const char *version_value) | |
3740 | { | |
3741 | struct nlattr *nest; | |
3742 | int err; | |
3743 | ||
3744 | nest = nla_nest_start(req->msg, attr); | |
3745 | if (!nest) | |
3746 | return -EMSGSIZE; | |
3747 | ||
3748 | err = nla_put_string(req->msg, DEVLINK_ATTR_INFO_VERSION_NAME, | |
3749 | version_name); | |
3750 | if (err) | |
3751 | goto nla_put_failure; | |
3752 | ||
3753 | err = nla_put_string(req->msg, DEVLINK_ATTR_INFO_VERSION_VALUE, | |
3754 | version_value); | |
3755 | if (err) | |
3756 | goto nla_put_failure; | |
3757 | ||
3758 | nla_nest_end(req->msg, nest); | |
3759 | ||
3760 | return 0; | |
3761 | ||
3762 | nla_put_failure: | |
3763 | nla_nest_cancel(req->msg, nest); | |
3764 | return err; | |
3765 | } | |
3766 | ||
3767 | int devlink_info_version_fixed_put(struct devlink_info_req *req, | |
3768 | const char *version_name, | |
3769 | const char *version_value) | |
3770 | { | |
3771 | return devlink_info_version_put(req, DEVLINK_ATTR_INFO_VERSION_FIXED, | |
3772 | version_name, version_value); | |
3773 | } | |
3774 | EXPORT_SYMBOL_GPL(devlink_info_version_fixed_put); | |
3775 | ||
3776 | int devlink_info_version_stored_put(struct devlink_info_req *req, | |
3777 | const char *version_name, | |
3778 | const char *version_value) | |
3779 | { | |
3780 | return devlink_info_version_put(req, DEVLINK_ATTR_INFO_VERSION_STORED, | |
3781 | version_name, version_value); | |
3782 | } | |
3783 | EXPORT_SYMBOL_GPL(devlink_info_version_stored_put); | |
3784 | ||
3785 | int devlink_info_version_running_put(struct devlink_info_req *req, | |
3786 | const char *version_name, | |
3787 | const char *version_value) | |
3788 | { | |
3789 | return devlink_info_version_put(req, DEVLINK_ATTR_INFO_VERSION_RUNNING, | |
3790 | version_name, version_value); | |
3791 | } | |
3792 | EXPORT_SYMBOL_GPL(devlink_info_version_running_put); | |
3793 | ||
f9cf2288 JK |
3794 | static int |
3795 | devlink_nl_info_fill(struct sk_buff *msg, struct devlink *devlink, | |
3796 | enum devlink_command cmd, u32 portid, | |
3797 | u32 seq, int flags, struct netlink_ext_ack *extack) | |
3798 | { | |
3799 | struct devlink_info_req req; | |
3800 | void *hdr; | |
3801 | int err; | |
3802 | ||
3803 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
3804 | if (!hdr) | |
3805 | return -EMSGSIZE; | |
3806 | ||
3807 | err = -EMSGSIZE; | |
3808 | if (devlink_nl_put_handle(msg, devlink)) | |
3809 | goto err_cancel_msg; | |
3810 | ||
3811 | req.msg = msg; | |
3812 | err = devlink->ops->info_get(devlink, &req, extack); | |
3813 | if (err) | |
3814 | goto err_cancel_msg; | |
3815 | ||
3816 | genlmsg_end(msg, hdr); | |
3817 | return 0; | |
3818 | ||
3819 | err_cancel_msg: | |
3820 | genlmsg_cancel(msg, hdr); | |
3821 | return err; | |
3822 | } | |
3823 | ||
3824 | static int devlink_nl_cmd_info_get_doit(struct sk_buff *skb, | |
3825 | struct genl_info *info) | |
3826 | { | |
3827 | struct devlink *devlink = info->user_ptr[0]; | |
3828 | struct sk_buff *msg; | |
3829 | int err; | |
3830 | ||
3831 | if (!devlink->ops || !devlink->ops->info_get) | |
3832 | return -EOPNOTSUPP; | |
3833 | ||
3834 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
3835 | if (!msg) | |
3836 | return -ENOMEM; | |
3837 | ||
3838 | err = devlink_nl_info_fill(msg, devlink, DEVLINK_CMD_INFO_GET, | |
3839 | info->snd_portid, info->snd_seq, 0, | |
3840 | info->extack); | |
3841 | if (err) { | |
3842 | nlmsg_free(msg); | |
3843 | return err; | |
3844 | } | |
3845 | ||
3846 | return genlmsg_reply(msg, info); | |
3847 | } | |
3848 | ||
3849 | static int devlink_nl_cmd_info_get_dumpit(struct sk_buff *msg, | |
3850 | struct netlink_callback *cb) | |
3851 | { | |
3852 | struct devlink *devlink; | |
3853 | int start = cb->args[0]; | |
3854 | int idx = 0; | |
3855 | int err; | |
3856 | ||
3857 | mutex_lock(&devlink_mutex); | |
3858 | list_for_each_entry(devlink, &devlink_list, list) { | |
3859 | if (!net_eq(devlink_net(devlink), sock_net(msg->sk))) | |
3860 | continue; | |
3861 | if (idx < start) { | |
3862 | idx++; | |
3863 | continue; | |
3864 | } | |
3865 | ||
3866 | mutex_lock(&devlink->lock); | |
3867 | err = devlink_nl_info_fill(msg, devlink, DEVLINK_CMD_INFO_GET, | |
3868 | NETLINK_CB(cb->skb).portid, | |
3869 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
3870 | cb->extack); | |
3871 | mutex_unlock(&devlink->lock); | |
3872 | if (err) | |
3873 | break; | |
3874 | idx++; | |
3875 | } | |
3876 | mutex_unlock(&devlink_mutex); | |
3877 | ||
3878 | cb->args[0] = idx; | |
3879 | return msg->len; | |
3880 | } | |
3881 | ||
bfcd3a46 JP |
3882 | static const struct nla_policy devlink_nl_policy[DEVLINK_ATTR_MAX + 1] = { |
3883 | [DEVLINK_ATTR_BUS_NAME] = { .type = NLA_NUL_STRING }, | |
3884 | [DEVLINK_ATTR_DEV_NAME] = { .type = NLA_NUL_STRING }, | |
3885 | [DEVLINK_ATTR_PORT_INDEX] = { .type = NLA_U32 }, | |
3886 | [DEVLINK_ATTR_PORT_TYPE] = { .type = NLA_U16 }, | |
3887 | [DEVLINK_ATTR_PORT_SPLIT_COUNT] = { .type = NLA_U32 }, | |
bf797471 JP |
3888 | [DEVLINK_ATTR_SB_INDEX] = { .type = NLA_U32 }, |
3889 | [DEVLINK_ATTR_SB_POOL_INDEX] = { .type = NLA_U16 }, | |
3890 | [DEVLINK_ATTR_SB_POOL_TYPE] = { .type = NLA_U8 }, | |
3891 | [DEVLINK_ATTR_SB_POOL_SIZE] = { .type = NLA_U32 }, | |
3892 | [DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE] = { .type = NLA_U8 }, | |
3893 | [DEVLINK_ATTR_SB_THRESHOLD] = { .type = NLA_U32 }, | |
3894 | [DEVLINK_ATTR_SB_TC_INDEX] = { .type = NLA_U16 }, | |
08f4b591 | 3895 | [DEVLINK_ATTR_ESWITCH_MODE] = { .type = NLA_U16 }, |
59bfde01 | 3896 | [DEVLINK_ATTR_ESWITCH_INLINE_MODE] = { .type = NLA_U8 }, |
f43e9b06 | 3897 | [DEVLINK_ATTR_ESWITCH_ENCAP_MODE] = { .type = NLA_U8 }, |
1555d204 AS |
3898 | [DEVLINK_ATTR_DPIPE_TABLE_NAME] = { .type = NLA_NUL_STRING }, |
3899 | [DEVLINK_ATTR_DPIPE_TABLE_COUNTERS_ENABLED] = { .type = NLA_U8 }, | |
d9f9b9a4 AS |
3900 | [DEVLINK_ATTR_RESOURCE_ID] = { .type = NLA_U64}, |
3901 | [DEVLINK_ATTR_RESOURCE_SIZE] = { .type = NLA_U64}, | |
e3b7ca18 MS |
3902 | [DEVLINK_ATTR_PARAM_NAME] = { .type = NLA_NUL_STRING }, |
3903 | [DEVLINK_ATTR_PARAM_TYPE] = { .type = NLA_U8 }, | |
3904 | [DEVLINK_ATTR_PARAM_VALUE_CMODE] = { .type = NLA_U8 }, | |
d8db7ea5 | 3905 | [DEVLINK_ATTR_REGION_NAME] = { .type = NLA_NUL_STRING }, |
866319bb | 3906 | [DEVLINK_ATTR_REGION_SNAPSHOT_ID] = { .type = NLA_U32 }, |
bfcd3a46 JP |
3907 | }; |
3908 | ||
3909 | static const struct genl_ops devlink_nl_ops[] = { | |
3910 | { | |
3911 | .cmd = DEVLINK_CMD_GET, | |
3912 | .doit = devlink_nl_cmd_get_doit, | |
3913 | .dumpit = devlink_nl_cmd_get_dumpit, | |
3914 | .policy = devlink_nl_policy, | |
1fc2257e | 3915 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, |
bfcd3a46 JP |
3916 | /* can be retrieved by unprivileged users */ |
3917 | }, | |
3918 | { | |
3919 | .cmd = DEVLINK_CMD_PORT_GET, | |
3920 | .doit = devlink_nl_cmd_port_get_doit, | |
3921 | .dumpit = devlink_nl_cmd_port_get_dumpit, | |
3922 | .policy = devlink_nl_policy, | |
3923 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, | |
3924 | /* can be retrieved by unprivileged users */ | |
3925 | }, | |
3926 | { | |
3927 | .cmd = DEVLINK_CMD_PORT_SET, | |
3928 | .doit = devlink_nl_cmd_port_set_doit, | |
3929 | .policy = devlink_nl_policy, | |
3930 | .flags = GENL_ADMIN_PERM, | |
3931 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, | |
3932 | }, | |
3933 | { | |
3934 | .cmd = DEVLINK_CMD_PORT_SPLIT, | |
3935 | .doit = devlink_nl_cmd_port_split_doit, | |
3936 | .policy = devlink_nl_policy, | |
3937 | .flags = GENL_ADMIN_PERM, | |
2406e7e5 AS |
3938 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK | |
3939 | DEVLINK_NL_FLAG_NO_LOCK, | |
bfcd3a46 JP |
3940 | }, |
3941 | { | |
3942 | .cmd = DEVLINK_CMD_PORT_UNSPLIT, | |
3943 | .doit = devlink_nl_cmd_port_unsplit_doit, | |
3944 | .policy = devlink_nl_policy, | |
3945 | .flags = GENL_ADMIN_PERM, | |
2406e7e5 AS |
3946 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK | |
3947 | DEVLINK_NL_FLAG_NO_LOCK, | |
bfcd3a46 | 3948 | }, |
bf797471 JP |
3949 | { |
3950 | .cmd = DEVLINK_CMD_SB_GET, | |
3951 | .doit = devlink_nl_cmd_sb_get_doit, | |
3952 | .dumpit = devlink_nl_cmd_sb_get_dumpit, | |
3953 | .policy = devlink_nl_policy, | |
3954 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK | | |
3955 | DEVLINK_NL_FLAG_NEED_SB, | |
3956 | /* can be retrieved by unprivileged users */ | |
3957 | }, | |
3958 | { | |
3959 | .cmd = DEVLINK_CMD_SB_POOL_GET, | |
3960 | .doit = devlink_nl_cmd_sb_pool_get_doit, | |
3961 | .dumpit = devlink_nl_cmd_sb_pool_get_dumpit, | |
3962 | .policy = devlink_nl_policy, | |
3963 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK | | |
3964 | DEVLINK_NL_FLAG_NEED_SB, | |
3965 | /* can be retrieved by unprivileged users */ | |
3966 | }, | |
3967 | { | |
3968 | .cmd = DEVLINK_CMD_SB_POOL_SET, | |
3969 | .doit = devlink_nl_cmd_sb_pool_set_doit, | |
3970 | .policy = devlink_nl_policy, | |
3971 | .flags = GENL_ADMIN_PERM, | |
3972 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK | | |
3973 | DEVLINK_NL_FLAG_NEED_SB, | |
3974 | }, | |
3975 | { | |
3976 | .cmd = DEVLINK_CMD_SB_PORT_POOL_GET, | |
3977 | .doit = devlink_nl_cmd_sb_port_pool_get_doit, | |
3978 | .dumpit = devlink_nl_cmd_sb_port_pool_get_dumpit, | |
3979 | .policy = devlink_nl_policy, | |
3980 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT | | |
3981 | DEVLINK_NL_FLAG_NEED_SB, | |
3982 | /* can be retrieved by unprivileged users */ | |
3983 | }, | |
3984 | { | |
3985 | .cmd = DEVLINK_CMD_SB_PORT_POOL_SET, | |
3986 | .doit = devlink_nl_cmd_sb_port_pool_set_doit, | |
3987 | .policy = devlink_nl_policy, | |
3988 | .flags = GENL_ADMIN_PERM, | |
3989 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT | | |
3990 | DEVLINK_NL_FLAG_NEED_SB, | |
3991 | }, | |
3992 | { | |
3993 | .cmd = DEVLINK_CMD_SB_TC_POOL_BIND_GET, | |
3994 | .doit = devlink_nl_cmd_sb_tc_pool_bind_get_doit, | |
3995 | .dumpit = devlink_nl_cmd_sb_tc_pool_bind_get_dumpit, | |
3996 | .policy = devlink_nl_policy, | |
3997 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT | | |
3998 | DEVLINK_NL_FLAG_NEED_SB, | |
3999 | /* can be retrieved by unprivileged users */ | |
4000 | }, | |
4001 | { | |
4002 | .cmd = DEVLINK_CMD_SB_TC_POOL_BIND_SET, | |
4003 | .doit = devlink_nl_cmd_sb_tc_pool_bind_set_doit, | |
4004 | .policy = devlink_nl_policy, | |
4005 | .flags = GENL_ADMIN_PERM, | |
4006 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT | | |
4007 | DEVLINK_NL_FLAG_NEED_SB, | |
4008 | }, | |
df38dafd JP |
4009 | { |
4010 | .cmd = DEVLINK_CMD_SB_OCC_SNAPSHOT, | |
4011 | .doit = devlink_nl_cmd_sb_occ_snapshot_doit, | |
4012 | .policy = devlink_nl_policy, | |
4013 | .flags = GENL_ADMIN_PERM, | |
4014 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK | | |
2406e7e5 | 4015 | DEVLINK_NL_FLAG_NEED_SB, |
df38dafd JP |
4016 | }, |
4017 | { | |
4018 | .cmd = DEVLINK_CMD_SB_OCC_MAX_CLEAR, | |
4019 | .doit = devlink_nl_cmd_sb_occ_max_clear_doit, | |
4020 | .policy = devlink_nl_policy, | |
4021 | .flags = GENL_ADMIN_PERM, | |
4022 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK | | |
2406e7e5 | 4023 | DEVLINK_NL_FLAG_NEED_SB, |
df38dafd | 4024 | }, |
08f4b591 | 4025 | { |
adf200f3 JP |
4026 | .cmd = DEVLINK_CMD_ESWITCH_GET, |
4027 | .doit = devlink_nl_cmd_eswitch_get_doit, | |
08f4b591 OG |
4028 | .policy = devlink_nl_policy, |
4029 | .flags = GENL_ADMIN_PERM, | |
4030 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, | |
4031 | }, | |
4032 | { | |
adf200f3 JP |
4033 | .cmd = DEVLINK_CMD_ESWITCH_SET, |
4034 | .doit = devlink_nl_cmd_eswitch_set_doit, | |
08f4b591 OG |
4035 | .policy = devlink_nl_policy, |
4036 | .flags = GENL_ADMIN_PERM, | |
7ac1cc9a JK |
4037 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK | |
4038 | DEVLINK_NL_FLAG_NO_LOCK, | |
08f4b591 | 4039 | }, |
1555d204 AS |
4040 | { |
4041 | .cmd = DEVLINK_CMD_DPIPE_TABLE_GET, | |
4042 | .doit = devlink_nl_cmd_dpipe_table_get, | |
4043 | .policy = devlink_nl_policy, | |
1555d204 | 4044 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, |
67ae686b | 4045 | /* can be retrieved by unprivileged users */ |
1555d204 AS |
4046 | }, |
4047 | { | |
4048 | .cmd = DEVLINK_CMD_DPIPE_ENTRIES_GET, | |
4049 | .doit = devlink_nl_cmd_dpipe_entries_get, | |
4050 | .policy = devlink_nl_policy, | |
1555d204 | 4051 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, |
67ae686b | 4052 | /* can be retrieved by unprivileged users */ |
1555d204 AS |
4053 | }, |
4054 | { | |
4055 | .cmd = DEVLINK_CMD_DPIPE_HEADERS_GET, | |
4056 | .doit = devlink_nl_cmd_dpipe_headers_get, | |
4057 | .policy = devlink_nl_policy, | |
1555d204 | 4058 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, |
67ae686b | 4059 | /* can be retrieved by unprivileged users */ |
1555d204 AS |
4060 | }, |
4061 | { | |
4062 | .cmd = DEVLINK_CMD_DPIPE_TABLE_COUNTERS_SET, | |
4063 | .doit = devlink_nl_cmd_dpipe_table_counters_set, | |
4064 | .policy = devlink_nl_policy, | |
4065 | .flags = GENL_ADMIN_PERM, | |
4066 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, | |
4067 | }, | |
d9f9b9a4 AS |
4068 | { |
4069 | .cmd = DEVLINK_CMD_RESOURCE_SET, | |
4070 | .doit = devlink_nl_cmd_resource_set, | |
4071 | .policy = devlink_nl_policy, | |
4072 | .flags = GENL_ADMIN_PERM, | |
4073 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, | |
4074 | }, | |
4075 | { | |
4076 | .cmd = DEVLINK_CMD_RESOURCE_DUMP, | |
4077 | .doit = devlink_nl_cmd_resource_dump, | |
4078 | .policy = devlink_nl_policy, | |
d9f9b9a4 | 4079 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, |
67ae686b | 4080 | /* can be retrieved by unprivileged users */ |
d9f9b9a4 | 4081 | }, |
2d8dc5bb AS |
4082 | { |
4083 | .cmd = DEVLINK_CMD_RELOAD, | |
4084 | .doit = devlink_nl_cmd_reload, | |
4085 | .policy = devlink_nl_policy, | |
4086 | .flags = GENL_ADMIN_PERM, | |
4087 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK | | |
4088 | DEVLINK_NL_FLAG_NO_LOCK, | |
4089 | }, | |
45f05def MS |
4090 | { |
4091 | .cmd = DEVLINK_CMD_PARAM_GET, | |
4092 | .doit = devlink_nl_cmd_param_get_doit, | |
4093 | .dumpit = devlink_nl_cmd_param_get_dumpit, | |
4094 | .policy = devlink_nl_policy, | |
4095 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, | |
4096 | /* can be retrieved by unprivileged users */ | |
4097 | }, | |
e3b7ca18 MS |
4098 | { |
4099 | .cmd = DEVLINK_CMD_PARAM_SET, | |
4100 | .doit = devlink_nl_cmd_param_set_doit, | |
4101 | .policy = devlink_nl_policy, | |
4102 | .flags = GENL_ADMIN_PERM, | |
4103 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, | |
4104 | }, | |
f4601dee VV |
4105 | { |
4106 | .cmd = DEVLINK_CMD_PORT_PARAM_GET, | |
4107 | .doit = devlink_nl_cmd_port_param_get_doit, | |
4108 | .dumpit = devlink_nl_cmd_port_param_get_dumpit, | |
4109 | .policy = devlink_nl_policy, | |
4110 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, | |
4111 | /* can be retrieved by unprivileged users */ | |
4112 | }, | |
9c54873b VV |
4113 | { |
4114 | .cmd = DEVLINK_CMD_PORT_PARAM_SET, | |
4115 | .doit = devlink_nl_cmd_port_param_set_doit, | |
4116 | .policy = devlink_nl_policy, | |
4117 | .flags = GENL_ADMIN_PERM, | |
4118 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, | |
4119 | }, | |
d8db7ea5 AV |
4120 | { |
4121 | .cmd = DEVLINK_CMD_REGION_GET, | |
4122 | .doit = devlink_nl_cmd_region_get_doit, | |
4123 | .dumpit = devlink_nl_cmd_region_get_dumpit, | |
4124 | .policy = devlink_nl_policy, | |
4125 | .flags = GENL_ADMIN_PERM, | |
4126 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, | |
4127 | }, | |
866319bb AV |
4128 | { |
4129 | .cmd = DEVLINK_CMD_REGION_DEL, | |
4130 | .doit = devlink_nl_cmd_region_del, | |
4131 | .policy = devlink_nl_policy, | |
4132 | .flags = GENL_ADMIN_PERM, | |
4133 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, | |
4134 | }, | |
4e54795a AV |
4135 | { |
4136 | .cmd = DEVLINK_CMD_REGION_READ, | |
4137 | .dumpit = devlink_nl_cmd_region_read_dumpit, | |
4138 | .policy = devlink_nl_policy, | |
4139 | .flags = GENL_ADMIN_PERM, | |
4140 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, | |
4141 | }, | |
f9cf2288 JK |
4142 | { |
4143 | .cmd = DEVLINK_CMD_INFO_GET, | |
4144 | .doit = devlink_nl_cmd_info_get_doit, | |
4145 | .dumpit = devlink_nl_cmd_info_get_dumpit, | |
4146 | .policy = devlink_nl_policy, | |
4147 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, | |
4148 | /* can be retrieved by unprivileged users */ | |
4149 | }, | |
bfcd3a46 JP |
4150 | }; |
4151 | ||
56989f6d | 4152 | static struct genl_family devlink_nl_family __ro_after_init = { |
489111e5 JB |
4153 | .name = DEVLINK_GENL_NAME, |
4154 | .version = DEVLINK_GENL_VERSION, | |
4155 | .maxattr = DEVLINK_ATTR_MAX, | |
4156 | .netnsok = true, | |
4157 | .pre_doit = devlink_nl_pre_doit, | |
4158 | .post_doit = devlink_nl_post_doit, | |
4159 | .module = THIS_MODULE, | |
4160 | .ops = devlink_nl_ops, | |
4161 | .n_ops = ARRAY_SIZE(devlink_nl_ops), | |
4162 | .mcgrps = devlink_nl_mcgrps, | |
4163 | .n_mcgrps = ARRAY_SIZE(devlink_nl_mcgrps), | |
4164 | }; | |
4165 | ||
bfcd3a46 JP |
4166 | /** |
4167 | * devlink_alloc - Allocate new devlink instance resources | |
4168 | * | |
4169 | * @ops: ops | |
4170 | * @priv_size: size of user private data | |
4171 | * | |
4172 | * Allocate new devlink instance resources, including devlink index | |
4173 | * and name. | |
4174 | */ | |
4175 | struct devlink *devlink_alloc(const struct devlink_ops *ops, size_t priv_size) | |
4176 | { | |
4177 | struct devlink *devlink; | |
4178 | ||
4179 | devlink = kzalloc(sizeof(*devlink) + priv_size, GFP_KERNEL); | |
4180 | if (!devlink) | |
4181 | return NULL; | |
4182 | devlink->ops = ops; | |
4183 | devlink_net_set(devlink, &init_net); | |
4184 | INIT_LIST_HEAD(&devlink->port_list); | |
bf797471 | 4185 | INIT_LIST_HEAD(&devlink->sb_list); |
1555d204 | 4186 | INIT_LIST_HEAD_RCU(&devlink->dpipe_table_list); |
d9f9b9a4 | 4187 | INIT_LIST_HEAD(&devlink->resource_list); |
eabaef18 | 4188 | INIT_LIST_HEAD(&devlink->param_list); |
b16ebe92 | 4189 | INIT_LIST_HEAD(&devlink->region_list); |
2406e7e5 | 4190 | mutex_init(&devlink->lock); |
bfcd3a46 JP |
4191 | return devlink; |
4192 | } | |
4193 | EXPORT_SYMBOL_GPL(devlink_alloc); | |
4194 | ||
4195 | /** | |
4196 | * devlink_register - Register devlink instance | |
4197 | * | |
4198 | * @devlink: devlink | |
4199 | */ | |
4200 | int devlink_register(struct devlink *devlink, struct device *dev) | |
4201 | { | |
4202 | mutex_lock(&devlink_mutex); | |
4203 | devlink->dev = dev; | |
4204 | list_add_tail(&devlink->list, &devlink_list); | |
4205 | devlink_notify(devlink, DEVLINK_CMD_NEW); | |
4206 | mutex_unlock(&devlink_mutex); | |
4207 | return 0; | |
4208 | } | |
4209 | EXPORT_SYMBOL_GPL(devlink_register); | |
4210 | ||
4211 | /** | |
4212 | * devlink_unregister - Unregister devlink instance | |
4213 | * | |
4214 | * @devlink: devlink | |
4215 | */ | |
4216 | void devlink_unregister(struct devlink *devlink) | |
4217 | { | |
4218 | mutex_lock(&devlink_mutex); | |
4219 | devlink_notify(devlink, DEVLINK_CMD_DEL); | |
4220 | list_del(&devlink->list); | |
4221 | mutex_unlock(&devlink_mutex); | |
4222 | } | |
4223 | EXPORT_SYMBOL_GPL(devlink_unregister); | |
4224 | ||
4225 | /** | |
4226 | * devlink_free - Free devlink instance resources | |
4227 | * | |
4228 | * @devlink: devlink | |
4229 | */ | |
4230 | void devlink_free(struct devlink *devlink) | |
4231 | { | |
4232 | kfree(devlink); | |
4233 | } | |
4234 | EXPORT_SYMBOL_GPL(devlink_free); | |
4235 | ||
4236 | /** | |
4237 | * devlink_port_register - Register devlink port | |
4238 | * | |
4239 | * @devlink: devlink | |
4240 | * @devlink_port: devlink port | |
4241 | * @port_index | |
4242 | * | |
4243 | * Register devlink port with provided port index. User can use | |
4244 | * any indexing, even hw-related one. devlink_port structure | |
4245 | * is convenient to be embedded inside user driver private structure. | |
4246 | * Note that the caller should take care of zeroing the devlink_port | |
4247 | * structure. | |
4248 | */ | |
4249 | int devlink_port_register(struct devlink *devlink, | |
4250 | struct devlink_port *devlink_port, | |
4251 | unsigned int port_index) | |
4252 | { | |
2406e7e5 | 4253 | mutex_lock(&devlink->lock); |
bfcd3a46 | 4254 | if (devlink_port_index_exists(devlink, port_index)) { |
2406e7e5 | 4255 | mutex_unlock(&devlink->lock); |
bfcd3a46 JP |
4256 | return -EEXIST; |
4257 | } | |
4258 | devlink_port->devlink = devlink; | |
4259 | devlink_port->index = port_index; | |
bfcd3a46 JP |
4260 | devlink_port->registered = true; |
4261 | list_add_tail(&devlink_port->list, &devlink->port_list); | |
39e6160e | 4262 | INIT_LIST_HEAD(&devlink_port->param_list); |
2406e7e5 | 4263 | mutex_unlock(&devlink->lock); |
bfcd3a46 JP |
4264 | devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_NEW); |
4265 | return 0; | |
4266 | } | |
4267 | EXPORT_SYMBOL_GPL(devlink_port_register); | |
4268 | ||
4269 | /** | |
4270 | * devlink_port_unregister - Unregister devlink port | |
4271 | * | |
4272 | * @devlink_port: devlink port | |
4273 | */ | |
4274 | void devlink_port_unregister(struct devlink_port *devlink_port) | |
4275 | { | |
2406e7e5 AS |
4276 | struct devlink *devlink = devlink_port->devlink; |
4277 | ||
bfcd3a46 | 4278 | devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_DEL); |
2406e7e5 | 4279 | mutex_lock(&devlink->lock); |
bfcd3a46 | 4280 | list_del(&devlink_port->list); |
2406e7e5 | 4281 | mutex_unlock(&devlink->lock); |
bfcd3a46 JP |
4282 | } |
4283 | EXPORT_SYMBOL_GPL(devlink_port_unregister); | |
4284 | ||
4285 | static void __devlink_port_type_set(struct devlink_port *devlink_port, | |
4286 | enum devlink_port_type type, | |
4287 | void *type_dev) | |
4288 | { | |
4289 | devlink_port->type = type; | |
4290 | devlink_port->type_dev = type_dev; | |
4291 | devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_NEW); | |
4292 | } | |
4293 | ||
4294 | /** | |
4295 | * devlink_port_type_eth_set - Set port type to Ethernet | |
4296 | * | |
4297 | * @devlink_port: devlink port | |
4298 | * @netdev: related netdevice | |
4299 | */ | |
4300 | void devlink_port_type_eth_set(struct devlink_port *devlink_port, | |
4301 | struct net_device *netdev) | |
4302 | { | |
4303 | return __devlink_port_type_set(devlink_port, | |
4304 | DEVLINK_PORT_TYPE_ETH, netdev); | |
4305 | } | |
4306 | EXPORT_SYMBOL_GPL(devlink_port_type_eth_set); | |
4307 | ||
4308 | /** | |
4309 | * devlink_port_type_ib_set - Set port type to InfiniBand | |
4310 | * | |
4311 | * @devlink_port: devlink port | |
4312 | * @ibdev: related IB device | |
4313 | */ | |
4314 | void devlink_port_type_ib_set(struct devlink_port *devlink_port, | |
4315 | struct ib_device *ibdev) | |
4316 | { | |
4317 | return __devlink_port_type_set(devlink_port, | |
4318 | DEVLINK_PORT_TYPE_IB, ibdev); | |
4319 | } | |
4320 | EXPORT_SYMBOL_GPL(devlink_port_type_ib_set); | |
4321 | ||
4322 | /** | |
4323 | * devlink_port_type_clear - Clear port type | |
4324 | * | |
4325 | * @devlink_port: devlink port | |
4326 | */ | |
4327 | void devlink_port_type_clear(struct devlink_port *devlink_port) | |
4328 | { | |
4329 | return __devlink_port_type_set(devlink_port, | |
4330 | DEVLINK_PORT_TYPE_NOTSET, NULL); | |
4331 | } | |
4332 | EXPORT_SYMBOL_GPL(devlink_port_type_clear); | |
4333 | ||
4334 | /** | |
b9ffcbaf | 4335 | * devlink_port_attrs_set - Set port attributes |
bfcd3a46 JP |
4336 | * |
4337 | * @devlink_port: devlink port | |
5ec1380a | 4338 | * @flavour: flavour of the port |
b9ffcbaf JP |
4339 | * @port_number: number of the port that is facing user, for example |
4340 | * the front panel port number | |
4341 | * @split: indicates if this is split port | |
4342 | * @split_subport_number: if the port is split, this is the number | |
4343 | * of subport. | |
bfcd3a46 | 4344 | */ |
b9ffcbaf | 4345 | void devlink_port_attrs_set(struct devlink_port *devlink_port, |
5ec1380a | 4346 | enum devlink_port_flavour flavour, |
b9ffcbaf JP |
4347 | u32 port_number, bool split, |
4348 | u32 split_subport_number) | |
bfcd3a46 | 4349 | { |
b9ffcbaf JP |
4350 | struct devlink_port_attrs *attrs = &devlink_port->attrs; |
4351 | ||
4352 | attrs->set = true; | |
5ec1380a | 4353 | attrs->flavour = flavour; |
b9ffcbaf JP |
4354 | attrs->port_number = port_number; |
4355 | attrs->split = split; | |
4356 | attrs->split_subport_number = split_subport_number; | |
bfcd3a46 JP |
4357 | devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_NEW); |
4358 | } | |
b9ffcbaf | 4359 | EXPORT_SYMBOL_GPL(devlink_port_attrs_set); |
bfcd3a46 | 4360 | |
08474c1a JP |
4361 | int devlink_port_get_phys_port_name(struct devlink_port *devlink_port, |
4362 | char *name, size_t len) | |
4363 | { | |
4364 | struct devlink_port_attrs *attrs = &devlink_port->attrs; | |
4365 | int n = 0; | |
4366 | ||
4367 | if (!attrs->set) | |
4368 | return -EOPNOTSUPP; | |
4369 | ||
4370 | switch (attrs->flavour) { | |
4371 | case DEVLINK_PORT_FLAVOUR_PHYSICAL: | |
4372 | if (!attrs->split) | |
4373 | n = snprintf(name, len, "p%u", attrs->port_number); | |
4374 | else | |
4375 | n = snprintf(name, len, "p%us%u", attrs->port_number, | |
4376 | attrs->split_subport_number); | |
4377 | break; | |
4378 | case DEVLINK_PORT_FLAVOUR_CPU: | |
4379 | case DEVLINK_PORT_FLAVOUR_DSA: | |
4380 | /* As CPU and DSA ports do not have a netdevice associated | |
4381 | * case should not ever happen. | |
4382 | */ | |
4383 | WARN_ON(1); | |
4384 | return -EINVAL; | |
4385 | } | |
4386 | ||
4387 | if (n >= len) | |
4388 | return -EINVAL; | |
4389 | ||
4390 | return 0; | |
4391 | } | |
4392 | EXPORT_SYMBOL_GPL(devlink_port_get_phys_port_name); | |
4393 | ||
bf797471 JP |
4394 | int devlink_sb_register(struct devlink *devlink, unsigned int sb_index, |
4395 | u32 size, u16 ingress_pools_count, | |
4396 | u16 egress_pools_count, u16 ingress_tc_count, | |
4397 | u16 egress_tc_count) | |
4398 | { | |
4399 | struct devlink_sb *devlink_sb; | |
4400 | int err = 0; | |
4401 | ||
2406e7e5 | 4402 | mutex_lock(&devlink->lock); |
bf797471 JP |
4403 | if (devlink_sb_index_exists(devlink, sb_index)) { |
4404 | err = -EEXIST; | |
4405 | goto unlock; | |
4406 | } | |
4407 | ||
4408 | devlink_sb = kzalloc(sizeof(*devlink_sb), GFP_KERNEL); | |
4409 | if (!devlink_sb) { | |
4410 | err = -ENOMEM; | |
4411 | goto unlock; | |
4412 | } | |
4413 | devlink_sb->index = sb_index; | |
4414 | devlink_sb->size = size; | |
4415 | devlink_sb->ingress_pools_count = ingress_pools_count; | |
4416 | devlink_sb->egress_pools_count = egress_pools_count; | |
4417 | devlink_sb->ingress_tc_count = ingress_tc_count; | |
4418 | devlink_sb->egress_tc_count = egress_tc_count; | |
4419 | list_add_tail(&devlink_sb->list, &devlink->sb_list); | |
4420 | unlock: | |
2406e7e5 | 4421 | mutex_unlock(&devlink->lock); |
bf797471 JP |
4422 | return err; |
4423 | } | |
4424 | EXPORT_SYMBOL_GPL(devlink_sb_register); | |
4425 | ||
4426 | void devlink_sb_unregister(struct devlink *devlink, unsigned int sb_index) | |
4427 | { | |
4428 | struct devlink_sb *devlink_sb; | |
4429 | ||
2406e7e5 | 4430 | mutex_lock(&devlink->lock); |
bf797471 JP |
4431 | devlink_sb = devlink_sb_get_by_index(devlink, sb_index); |
4432 | WARN_ON(!devlink_sb); | |
4433 | list_del(&devlink_sb->list); | |
2406e7e5 | 4434 | mutex_unlock(&devlink->lock); |
bf797471 JP |
4435 | kfree(devlink_sb); |
4436 | } | |
4437 | EXPORT_SYMBOL_GPL(devlink_sb_unregister); | |
4438 | ||
1555d204 AS |
4439 | /** |
4440 | * devlink_dpipe_headers_register - register dpipe headers | |
4441 | * | |
4442 | * @devlink: devlink | |
4443 | * @dpipe_headers: dpipe header array | |
4444 | * | |
4445 | * Register the headers supported by hardware. | |
4446 | */ | |
4447 | int devlink_dpipe_headers_register(struct devlink *devlink, | |
4448 | struct devlink_dpipe_headers *dpipe_headers) | |
4449 | { | |
2406e7e5 | 4450 | mutex_lock(&devlink->lock); |
1555d204 | 4451 | devlink->dpipe_headers = dpipe_headers; |
2406e7e5 | 4452 | mutex_unlock(&devlink->lock); |
1555d204 AS |
4453 | return 0; |
4454 | } | |
4455 | EXPORT_SYMBOL_GPL(devlink_dpipe_headers_register); | |
4456 | ||
4457 | /** | |
4458 | * devlink_dpipe_headers_unregister - unregister dpipe headers | |
4459 | * | |
4460 | * @devlink: devlink | |
4461 | * | |
4462 | * Unregister the headers supported by hardware. | |
4463 | */ | |
4464 | void devlink_dpipe_headers_unregister(struct devlink *devlink) | |
4465 | { | |
2406e7e5 | 4466 | mutex_lock(&devlink->lock); |
1555d204 | 4467 | devlink->dpipe_headers = NULL; |
2406e7e5 | 4468 | mutex_unlock(&devlink->lock); |
1555d204 AS |
4469 | } |
4470 | EXPORT_SYMBOL_GPL(devlink_dpipe_headers_unregister); | |
4471 | ||
4472 | /** | |
4473 | * devlink_dpipe_table_counter_enabled - check if counter allocation | |
4474 | * required | |
4475 | * @devlink: devlink | |
4476 | * @table_name: tables name | |
4477 | * | |
4478 | * Used by driver to check if counter allocation is required. | |
4479 | * After counter allocation is turned on the table entries | |
4480 | * are updated to include counter statistics. | |
4481 | * | |
4482 | * After that point on the driver must respect the counter | |
4483 | * state so that each entry added to the table is added | |
4484 | * with a counter. | |
4485 | */ | |
4486 | bool devlink_dpipe_table_counter_enabled(struct devlink *devlink, | |
4487 | const char *table_name) | |
4488 | { | |
4489 | struct devlink_dpipe_table *table; | |
4490 | bool enabled; | |
4491 | ||
4492 | rcu_read_lock(); | |
4493 | table = devlink_dpipe_table_find(&devlink->dpipe_table_list, | |
4494 | table_name); | |
4495 | enabled = false; | |
4496 | if (table) | |
4497 | enabled = table->counters_enabled; | |
4498 | rcu_read_unlock(); | |
4499 | return enabled; | |
4500 | } | |
4501 | EXPORT_SYMBOL_GPL(devlink_dpipe_table_counter_enabled); | |
4502 | ||
4503 | /** | |
4504 | * devlink_dpipe_table_register - register dpipe table | |
4505 | * | |
4506 | * @devlink: devlink | |
4507 | * @table_name: table name | |
4508 | * @table_ops: table ops | |
4509 | * @priv: priv | |
1555d204 AS |
4510 | * @counter_control_extern: external control for counters |
4511 | */ | |
4512 | int devlink_dpipe_table_register(struct devlink *devlink, | |
4513 | const char *table_name, | |
4514 | struct devlink_dpipe_table_ops *table_ops, | |
ffd3cdcc | 4515 | void *priv, bool counter_control_extern) |
1555d204 AS |
4516 | { |
4517 | struct devlink_dpipe_table *table; | |
4518 | ||
4519 | if (devlink_dpipe_table_find(&devlink->dpipe_table_list, table_name)) | |
4520 | return -EEXIST; | |
4521 | ||
ffd3cdcc AS |
4522 | if (WARN_ON(!table_ops->size_get)) |
4523 | return -EINVAL; | |
4524 | ||
1555d204 AS |
4525 | table = kzalloc(sizeof(*table), GFP_KERNEL); |
4526 | if (!table) | |
4527 | return -ENOMEM; | |
4528 | ||
4529 | table->name = table_name; | |
4530 | table->table_ops = table_ops; | |
4531 | table->priv = priv; | |
1555d204 AS |
4532 | table->counter_control_extern = counter_control_extern; |
4533 | ||
2406e7e5 | 4534 | mutex_lock(&devlink->lock); |
1555d204 | 4535 | list_add_tail_rcu(&table->list, &devlink->dpipe_table_list); |
2406e7e5 | 4536 | mutex_unlock(&devlink->lock); |
1555d204 AS |
4537 | return 0; |
4538 | } | |
4539 | EXPORT_SYMBOL_GPL(devlink_dpipe_table_register); | |
4540 | ||
4541 | /** | |
4542 | * devlink_dpipe_table_unregister - unregister dpipe table | |
4543 | * | |
4544 | * @devlink: devlink | |
4545 | * @table_name: table name | |
4546 | */ | |
4547 | void devlink_dpipe_table_unregister(struct devlink *devlink, | |
4548 | const char *table_name) | |
4549 | { | |
4550 | struct devlink_dpipe_table *table; | |
4551 | ||
2406e7e5 | 4552 | mutex_lock(&devlink->lock); |
1555d204 AS |
4553 | table = devlink_dpipe_table_find(&devlink->dpipe_table_list, |
4554 | table_name); | |
4555 | if (!table) | |
4556 | goto unlock; | |
4557 | list_del_rcu(&table->list); | |
2406e7e5 | 4558 | mutex_unlock(&devlink->lock); |
1555d204 AS |
4559 | kfree_rcu(table, rcu); |
4560 | return; | |
4561 | unlock: | |
2406e7e5 | 4562 | mutex_unlock(&devlink->lock); |
1555d204 AS |
4563 | } |
4564 | EXPORT_SYMBOL_GPL(devlink_dpipe_table_unregister); | |
4565 | ||
d9f9b9a4 AS |
4566 | /** |
4567 | * devlink_resource_register - devlink resource register | |
4568 | * | |
4569 | * @devlink: devlink | |
4570 | * @resource_name: resource's name | |
4571 | * @top_hierarchy: top hierarchy | |
4572 | * @reload_required: reload is required for new configuration to | |
4573 | * apply | |
4574 | * @resource_size: resource's size | |
4575 | * @resource_id: resource's id | |
4576 | * @parent_reosurce_id: resource's parent id | |
4577 | * @size params: size parameters | |
d9f9b9a4 AS |
4578 | */ |
4579 | int devlink_resource_register(struct devlink *devlink, | |
4580 | const char *resource_name, | |
d9f9b9a4 AS |
4581 | u64 resource_size, |
4582 | u64 resource_id, | |
4583 | u64 parent_resource_id, | |
fc56be47 | 4584 | const struct devlink_resource_size_params *size_params) |
d9f9b9a4 AS |
4585 | { |
4586 | struct devlink_resource *resource; | |
4587 | struct list_head *resource_list; | |
14530746 | 4588 | bool top_hierarchy; |
d9f9b9a4 AS |
4589 | int err = 0; |
4590 | ||
14530746 DA |
4591 | top_hierarchy = parent_resource_id == DEVLINK_RESOURCE_ID_PARENT_TOP; |
4592 | ||
d9f9b9a4 AS |
4593 | mutex_lock(&devlink->lock); |
4594 | resource = devlink_resource_find(devlink, NULL, resource_id); | |
4595 | if (resource) { | |
4596 | err = -EINVAL; | |
4597 | goto out; | |
4598 | } | |
4599 | ||
4600 | resource = kzalloc(sizeof(*resource), GFP_KERNEL); | |
4601 | if (!resource) { | |
4602 | err = -ENOMEM; | |
4603 | goto out; | |
4604 | } | |
4605 | ||
4606 | if (top_hierarchy) { | |
4607 | resource_list = &devlink->resource_list; | |
4608 | } else { | |
4609 | struct devlink_resource *parent_resource; | |
4610 | ||
4611 | parent_resource = devlink_resource_find(devlink, NULL, | |
4612 | parent_resource_id); | |
4613 | if (parent_resource) { | |
4614 | resource_list = &parent_resource->resource_list; | |
4615 | resource->parent = parent_resource; | |
4616 | } else { | |
b75703de | 4617 | kfree(resource); |
d9f9b9a4 AS |
4618 | err = -EINVAL; |
4619 | goto out; | |
4620 | } | |
4621 | } | |
4622 | ||
4623 | resource->name = resource_name; | |
4624 | resource->size = resource_size; | |
4625 | resource->size_new = resource_size; | |
4626 | resource->id = resource_id; | |
d9f9b9a4 | 4627 | resource->size_valid = true; |
77d27096 JP |
4628 | memcpy(&resource->size_params, size_params, |
4629 | sizeof(resource->size_params)); | |
d9f9b9a4 AS |
4630 | INIT_LIST_HEAD(&resource->resource_list); |
4631 | list_add_tail(&resource->list, resource_list); | |
4632 | out: | |
4633 | mutex_unlock(&devlink->lock); | |
4634 | return err; | |
4635 | } | |
4636 | EXPORT_SYMBOL_GPL(devlink_resource_register); | |
4637 | ||
4638 | /** | |
4639 | * devlink_resources_unregister - free all resources | |
4640 | * | |
4641 | * @devlink: devlink | |
4642 | * @resource: resource | |
4643 | */ | |
4644 | void devlink_resources_unregister(struct devlink *devlink, | |
4645 | struct devlink_resource *resource) | |
4646 | { | |
4647 | struct devlink_resource *tmp, *child_resource; | |
4648 | struct list_head *resource_list; | |
4649 | ||
4650 | if (resource) | |
4651 | resource_list = &resource->resource_list; | |
4652 | else | |
4653 | resource_list = &devlink->resource_list; | |
4654 | ||
4655 | if (!resource) | |
4656 | mutex_lock(&devlink->lock); | |
4657 | ||
4658 | list_for_each_entry_safe(child_resource, tmp, resource_list, list) { | |
4659 | devlink_resources_unregister(devlink, child_resource); | |
4660 | list_del(&child_resource->list); | |
4661 | kfree(child_resource); | |
4662 | } | |
4663 | ||
4664 | if (!resource) | |
4665 | mutex_unlock(&devlink->lock); | |
4666 | } | |
4667 | EXPORT_SYMBOL_GPL(devlink_resources_unregister); | |
4668 | ||
4669 | /** | |
4670 | * devlink_resource_size_get - get and update size | |
4671 | * | |
4672 | * @devlink: devlink | |
4673 | * @resource_id: the requested resource id | |
4674 | * @p_resource_size: ptr to update | |
4675 | */ | |
4676 | int devlink_resource_size_get(struct devlink *devlink, | |
4677 | u64 resource_id, | |
4678 | u64 *p_resource_size) | |
4679 | { | |
4680 | struct devlink_resource *resource; | |
4681 | int err = 0; | |
4682 | ||
4683 | mutex_lock(&devlink->lock); | |
4684 | resource = devlink_resource_find(devlink, NULL, resource_id); | |
4685 | if (!resource) { | |
4686 | err = -EINVAL; | |
4687 | goto out; | |
4688 | } | |
4689 | *p_resource_size = resource->size_new; | |
4690 | resource->size = resource->size_new; | |
4691 | out: | |
4692 | mutex_unlock(&devlink->lock); | |
4693 | return err; | |
4694 | } | |
4695 | EXPORT_SYMBOL_GPL(devlink_resource_size_get); | |
4696 | ||
56dc7cd0 AS |
4697 | /** |
4698 | * devlink_dpipe_table_resource_set - set the resource id | |
4699 | * | |
4700 | * @devlink: devlink | |
4701 | * @table_name: table name | |
4702 | * @resource_id: resource id | |
4703 | * @resource_units: number of resource's units consumed per table's entry | |
4704 | */ | |
4705 | int devlink_dpipe_table_resource_set(struct devlink *devlink, | |
4706 | const char *table_name, u64 resource_id, | |
4707 | u64 resource_units) | |
4708 | { | |
4709 | struct devlink_dpipe_table *table; | |
4710 | int err = 0; | |
4711 | ||
4712 | mutex_lock(&devlink->lock); | |
4713 | table = devlink_dpipe_table_find(&devlink->dpipe_table_list, | |
4714 | table_name); | |
4715 | if (!table) { | |
4716 | err = -EINVAL; | |
4717 | goto out; | |
4718 | } | |
4719 | table->resource_id = resource_id; | |
4720 | table->resource_units = resource_units; | |
4721 | table->resource_valid = true; | |
4722 | out: | |
4723 | mutex_unlock(&devlink->lock); | |
4724 | return err; | |
4725 | } | |
4726 | EXPORT_SYMBOL_GPL(devlink_dpipe_table_resource_set); | |
4727 | ||
fc56be47 JP |
4728 | /** |
4729 | * devlink_resource_occ_get_register - register occupancy getter | |
4730 | * | |
4731 | * @devlink: devlink | |
4732 | * @resource_id: resource id | |
4733 | * @occ_get: occupancy getter callback | |
4734 | * @occ_get_priv: occupancy getter callback priv | |
4735 | */ | |
4736 | void devlink_resource_occ_get_register(struct devlink *devlink, | |
4737 | u64 resource_id, | |
4738 | devlink_resource_occ_get_t *occ_get, | |
4739 | void *occ_get_priv) | |
4740 | { | |
4741 | struct devlink_resource *resource; | |
4742 | ||
4743 | mutex_lock(&devlink->lock); | |
4744 | resource = devlink_resource_find(devlink, NULL, resource_id); | |
4745 | if (WARN_ON(!resource)) | |
4746 | goto out; | |
4747 | WARN_ON(resource->occ_get); | |
4748 | ||
4749 | resource->occ_get = occ_get; | |
4750 | resource->occ_get_priv = occ_get_priv; | |
4751 | out: | |
4752 | mutex_unlock(&devlink->lock); | |
4753 | } | |
4754 | EXPORT_SYMBOL_GPL(devlink_resource_occ_get_register); | |
4755 | ||
4756 | /** | |
4757 | * devlink_resource_occ_get_unregister - unregister occupancy getter | |
4758 | * | |
4759 | * @devlink: devlink | |
4760 | * @resource_id: resource id | |
4761 | */ | |
4762 | void devlink_resource_occ_get_unregister(struct devlink *devlink, | |
4763 | u64 resource_id) | |
4764 | { | |
4765 | struct devlink_resource *resource; | |
4766 | ||
4767 | mutex_lock(&devlink->lock); | |
4768 | resource = devlink_resource_find(devlink, NULL, resource_id); | |
4769 | if (WARN_ON(!resource)) | |
4770 | goto out; | |
4771 | WARN_ON(!resource->occ_get); | |
4772 | ||
4773 | resource->occ_get = NULL; | |
4774 | resource->occ_get_priv = NULL; | |
4775 | out: | |
4776 | mutex_unlock(&devlink->lock); | |
4777 | } | |
4778 | EXPORT_SYMBOL_GPL(devlink_resource_occ_get_unregister); | |
4779 | ||
39e6160e VV |
4780 | static int devlink_param_verify(const struct devlink_param *param) |
4781 | { | |
4782 | if (!param || !param->name || !param->supported_cmodes) | |
4783 | return -EINVAL; | |
4784 | if (param->generic) | |
4785 | return devlink_param_generic_verify(param); | |
4786 | else | |
4787 | return devlink_param_driver_verify(param); | |
4788 | } | |
4789 | ||
4790 | static int __devlink_params_register(struct devlink *devlink, | |
c1e5786d | 4791 | unsigned int port_index, |
39e6160e VV |
4792 | struct list_head *param_list, |
4793 | const struct devlink_param *params, | |
c1e5786d VV |
4794 | size_t params_count, |
4795 | enum devlink_command reg_cmd, | |
4796 | enum devlink_command unreg_cmd) | |
eabaef18 MS |
4797 | { |
4798 | const struct devlink_param *param = params; | |
4799 | int i; | |
4800 | int err; | |
4801 | ||
4802 | mutex_lock(&devlink->lock); | |
4803 | for (i = 0; i < params_count; i++, param++) { | |
39e6160e VV |
4804 | err = devlink_param_verify(param); |
4805 | if (err) | |
eabaef18 | 4806 | goto rollback; |
39e6160e | 4807 | |
c1e5786d VV |
4808 | err = devlink_param_register_one(devlink, port_index, |
4809 | param_list, param, reg_cmd); | |
eabaef18 MS |
4810 | if (err) |
4811 | goto rollback; | |
4812 | } | |
4813 | ||
4814 | mutex_unlock(&devlink->lock); | |
4815 | return 0; | |
4816 | ||
4817 | rollback: | |
4818 | if (!i) | |
4819 | goto unlock; | |
4820 | for (param--; i > 0; i--, param--) | |
c1e5786d VV |
4821 | devlink_param_unregister_one(devlink, port_index, param_list, |
4822 | param, unreg_cmd); | |
eabaef18 MS |
4823 | unlock: |
4824 | mutex_unlock(&devlink->lock); | |
4825 | return err; | |
4826 | } | |
39e6160e VV |
4827 | |
4828 | static void __devlink_params_unregister(struct devlink *devlink, | |
c1e5786d | 4829 | unsigned int port_index, |
39e6160e VV |
4830 | struct list_head *param_list, |
4831 | const struct devlink_param *params, | |
c1e5786d VV |
4832 | size_t params_count, |
4833 | enum devlink_command cmd) | |
39e6160e VV |
4834 | { |
4835 | const struct devlink_param *param = params; | |
4836 | int i; | |
4837 | ||
4838 | mutex_lock(&devlink->lock); | |
4839 | for (i = 0; i < params_count; i++, param++) | |
c1e5786d VV |
4840 | devlink_param_unregister_one(devlink, 0, param_list, param, |
4841 | cmd); | |
39e6160e VV |
4842 | mutex_unlock(&devlink->lock); |
4843 | } | |
4844 | ||
4845 | /** | |
4846 | * devlink_params_register - register configuration parameters | |
4847 | * | |
4848 | * @devlink: devlink | |
4849 | * @params: configuration parameters array | |
4850 | * @params_count: number of parameters provided | |
4851 | * | |
4852 | * Register the configuration parameters supported by the driver. | |
4853 | */ | |
4854 | int devlink_params_register(struct devlink *devlink, | |
4855 | const struct devlink_param *params, | |
4856 | size_t params_count) | |
4857 | { | |
c1e5786d VV |
4858 | return __devlink_params_register(devlink, 0, &devlink->param_list, |
4859 | params, params_count, | |
4860 | DEVLINK_CMD_PARAM_NEW, | |
4861 | DEVLINK_CMD_PARAM_DEL); | |
39e6160e | 4862 | } |
eabaef18 MS |
4863 | EXPORT_SYMBOL_GPL(devlink_params_register); |
4864 | ||
4865 | /** | |
4866 | * devlink_params_unregister - unregister configuration parameters | |
4867 | * @devlink: devlink | |
4868 | * @params: configuration parameters to unregister | |
4869 | * @params_count: number of parameters provided | |
4870 | */ | |
4871 | void devlink_params_unregister(struct devlink *devlink, | |
4872 | const struct devlink_param *params, | |
4873 | size_t params_count) | |
4874 | { | |
c1e5786d VV |
4875 | return __devlink_params_unregister(devlink, 0, &devlink->param_list, |
4876 | params, params_count, | |
4877 | DEVLINK_CMD_PARAM_DEL); | |
eabaef18 MS |
4878 | } |
4879 | EXPORT_SYMBOL_GPL(devlink_params_unregister); | |
4880 | ||
39e6160e VV |
4881 | /** |
4882 | * devlink_port_params_register - register port configuration parameters | |
4883 | * | |
4884 | * @devlink_port: devlink port | |
4885 | * @params: configuration parameters array | |
4886 | * @params_count: number of parameters provided | |
4887 | * | |
4888 | * Register the configuration parameters supported by the port. | |
4889 | */ | |
4890 | int devlink_port_params_register(struct devlink_port *devlink_port, | |
4891 | const struct devlink_param *params, | |
4892 | size_t params_count) | |
4893 | { | |
4894 | return __devlink_params_register(devlink_port->devlink, | |
c1e5786d | 4895 | devlink_port->index, |
39e6160e | 4896 | &devlink_port->param_list, params, |
c1e5786d VV |
4897 | params_count, |
4898 | DEVLINK_CMD_PORT_PARAM_NEW, | |
4899 | DEVLINK_CMD_PORT_PARAM_DEL); | |
39e6160e VV |
4900 | } |
4901 | EXPORT_SYMBOL_GPL(devlink_port_params_register); | |
4902 | ||
4903 | /** | |
4904 | * devlink_port_params_unregister - unregister port configuration | |
4905 | * parameters | |
4906 | * | |
4907 | * @devlink_port: devlink port | |
4908 | * @params: configuration parameters array | |
4909 | * @params_count: number of parameters provided | |
4910 | */ | |
4911 | void devlink_port_params_unregister(struct devlink_port *devlink_port, | |
4912 | const struct devlink_param *params, | |
4913 | size_t params_count) | |
4914 | { | |
4915 | return __devlink_params_unregister(devlink_port->devlink, | |
c1e5786d | 4916 | devlink_port->index, |
39e6160e | 4917 | &devlink_port->param_list, |
c1e5786d VV |
4918 | params, params_count, |
4919 | DEVLINK_CMD_PORT_PARAM_DEL); | |
39e6160e VV |
4920 | } |
4921 | EXPORT_SYMBOL_GPL(devlink_port_params_unregister); | |
4922 | ||
ffd19b9a VV |
4923 | static int |
4924 | __devlink_param_driverinit_value_get(struct list_head *param_list, u32 param_id, | |
4925 | union devlink_param_value *init_val) | |
ec01aeb1 MS |
4926 | { |
4927 | struct devlink_param_item *param_item; | |
4928 | ||
ffd19b9a | 4929 | param_item = devlink_param_find_by_id(param_list, param_id); |
ec01aeb1 MS |
4930 | if (!param_item) |
4931 | return -EINVAL; | |
4932 | ||
4933 | if (!param_item->driverinit_value_valid || | |
4934 | !devlink_param_cmode_is_supported(param_item->param, | |
4935 | DEVLINK_PARAM_CMODE_DRIVERINIT)) | |
4936 | return -EOPNOTSUPP; | |
4937 | ||
1276534c MS |
4938 | if (param_item->param->type == DEVLINK_PARAM_TYPE_STRING) |
4939 | strcpy(init_val->vstr, param_item->driverinit_value.vstr); | |
4940 | else | |
4941 | *init_val = param_item->driverinit_value; | |
ec01aeb1 MS |
4942 | |
4943 | return 0; | |
4944 | } | |
ffd19b9a | 4945 | |
5473a7bd VV |
4946 | static int |
4947 | __devlink_param_driverinit_value_set(struct devlink *devlink, | |
c1e5786d | 4948 | unsigned int port_index, |
5473a7bd VV |
4949 | struct list_head *param_list, u32 param_id, |
4950 | union devlink_param_value init_val, | |
4951 | enum devlink_command cmd) | |
4952 | { | |
4953 | struct devlink_param_item *param_item; | |
4954 | ||
4955 | param_item = devlink_param_find_by_id(param_list, param_id); | |
4956 | if (!param_item) | |
4957 | return -EINVAL; | |
4958 | ||
4959 | if (!devlink_param_cmode_is_supported(param_item->param, | |
4960 | DEVLINK_PARAM_CMODE_DRIVERINIT)) | |
4961 | return -EOPNOTSUPP; | |
4962 | ||
4963 | if (param_item->param->type == DEVLINK_PARAM_TYPE_STRING) | |
4964 | strcpy(param_item->driverinit_value.vstr, init_val.vstr); | |
4965 | else | |
4966 | param_item->driverinit_value = init_val; | |
4967 | param_item->driverinit_value_valid = true; | |
4968 | ||
c1e5786d | 4969 | devlink_param_notify(devlink, port_index, param_item, cmd); |
5473a7bd VV |
4970 | return 0; |
4971 | } | |
4972 | ||
ffd19b9a VV |
4973 | /** |
4974 | * devlink_param_driverinit_value_get - get configuration parameter | |
4975 | * value for driver initializing | |
4976 | * | |
4977 | * @devlink: devlink | |
4978 | * @param_id: parameter ID | |
4979 | * @init_val: value of parameter in driverinit configuration mode | |
4980 | * | |
4981 | * This function should be used by the driver to get driverinit | |
4982 | * configuration for initialization after reload command. | |
4983 | */ | |
4984 | int devlink_param_driverinit_value_get(struct devlink *devlink, u32 param_id, | |
4985 | union devlink_param_value *init_val) | |
4986 | { | |
4987 | if (!devlink->ops || !devlink->ops->reload) | |
4988 | return -EOPNOTSUPP; | |
4989 | ||
4990 | return __devlink_param_driverinit_value_get(&devlink->param_list, | |
4991 | param_id, init_val); | |
4992 | } | |
ec01aeb1 MS |
4993 | EXPORT_SYMBOL_GPL(devlink_param_driverinit_value_get); |
4994 | ||
4995 | /** | |
4996 | * devlink_param_driverinit_value_set - set value of configuration | |
4997 | * parameter for driverinit | |
4998 | * configuration mode | |
4999 | * | |
5000 | * @devlink: devlink | |
5001 | * @param_id: parameter ID | |
5002 | * @init_val: value of parameter to set for driverinit configuration mode | |
5003 | * | |
5004 | * This function should be used by the driver to set driverinit | |
5005 | * configuration mode default value. | |
5006 | */ | |
5007 | int devlink_param_driverinit_value_set(struct devlink *devlink, u32 param_id, | |
5008 | union devlink_param_value init_val) | |
5009 | { | |
c1e5786d | 5010 | return __devlink_param_driverinit_value_set(devlink, 0, |
5473a7bd VV |
5011 | &devlink->param_list, |
5012 | param_id, init_val, | |
5013 | DEVLINK_CMD_PARAM_NEW); | |
ec01aeb1 MS |
5014 | } |
5015 | EXPORT_SYMBOL_GPL(devlink_param_driverinit_value_set); | |
5016 | ||
ffd19b9a VV |
5017 | /** |
5018 | * devlink_port_param_driverinit_value_get - get configuration parameter | |
5019 | * value for driver initializing | |
5020 | * | |
5021 | * @devlink_port: devlink_port | |
5022 | * @param_id: parameter ID | |
5023 | * @init_val: value of parameter in driverinit configuration mode | |
5024 | * | |
5025 | * This function should be used by the driver to get driverinit | |
5026 | * configuration for initialization after reload command. | |
5027 | */ | |
5028 | int devlink_port_param_driverinit_value_get(struct devlink_port *devlink_port, | |
5029 | u32 param_id, | |
5030 | union devlink_param_value *init_val) | |
5031 | { | |
5032 | struct devlink *devlink = devlink_port->devlink; | |
5033 | ||
5034 | if (!devlink->ops || !devlink->ops->reload) | |
5035 | return -EOPNOTSUPP; | |
5036 | ||
5037 | return __devlink_param_driverinit_value_get(&devlink_port->param_list, | |
5038 | param_id, init_val); | |
5039 | } | |
5040 | EXPORT_SYMBOL_GPL(devlink_port_param_driverinit_value_get); | |
5041 | ||
5473a7bd VV |
5042 | /** |
5043 | * devlink_port_param_driverinit_value_set - set value of configuration | |
5044 | * parameter for driverinit | |
5045 | * configuration mode | |
5046 | * | |
5047 | * @devlink_port: devlink_port | |
5048 | * @param_id: parameter ID | |
5049 | * @init_val: value of parameter to set for driverinit configuration mode | |
5050 | * | |
5051 | * This function should be used by the driver to set driverinit | |
5052 | * configuration mode default value. | |
5053 | */ | |
5054 | int devlink_port_param_driverinit_value_set(struct devlink_port *devlink_port, | |
5055 | u32 param_id, | |
5056 | union devlink_param_value init_val) | |
5057 | { | |
5058 | return __devlink_param_driverinit_value_set(devlink_port->devlink, | |
c1e5786d | 5059 | devlink_port->index, |
5473a7bd | 5060 | &devlink_port->param_list, |
c1e5786d VV |
5061 | param_id, init_val, |
5062 | DEVLINK_CMD_PORT_PARAM_NEW); | |
5473a7bd VV |
5063 | } |
5064 | EXPORT_SYMBOL_GPL(devlink_port_param_driverinit_value_set); | |
5065 | ||
ea601e17 MS |
5066 | /** |
5067 | * devlink_param_value_changed - notify devlink on a parameter's value | |
5068 | * change. Should be called by the driver | |
5069 | * right after the change. | |
5070 | * | |
5071 | * @devlink: devlink | |
5072 | * @param_id: parameter ID | |
5073 | * | |
5074 | * This function should be used by the driver to notify devlink on value | |
5075 | * change, excluding driverinit configuration mode. | |
5076 | * For driverinit configuration mode driver should use the function | |
ea601e17 MS |
5077 | */ |
5078 | void devlink_param_value_changed(struct devlink *devlink, u32 param_id) | |
5079 | { | |
5080 | struct devlink_param_item *param_item; | |
5081 | ||
5082 | param_item = devlink_param_find_by_id(&devlink->param_list, param_id); | |
5083 | WARN_ON(!param_item); | |
5084 | ||
c1e5786d | 5085 | devlink_param_notify(devlink, 0, param_item, DEVLINK_CMD_PARAM_NEW); |
ea601e17 MS |
5086 | } |
5087 | EXPORT_SYMBOL_GPL(devlink_param_value_changed); | |
5088 | ||
c1e5786d VV |
5089 | /** |
5090 | * devlink_port_param_value_changed - notify devlink on a parameter's value | |
5091 | * change. Should be called by the driver | |
5092 | * right after the change. | |
5093 | * | |
5094 | * @devlink_port: devlink_port | |
5095 | * @param_id: parameter ID | |
5096 | * | |
5097 | * This function should be used by the driver to notify devlink on value | |
5098 | * change, excluding driverinit configuration mode. | |
5099 | * For driverinit configuration mode driver should use the function | |
5100 | * devlink_port_param_driverinit_value_set() instead. | |
5101 | */ | |
5102 | void devlink_port_param_value_changed(struct devlink_port *devlink_port, | |
5103 | u32 param_id) | |
5104 | { | |
5105 | struct devlink_param_item *param_item; | |
5106 | ||
5107 | param_item = devlink_param_find_by_id(&devlink_port->param_list, | |
5108 | param_id); | |
5109 | WARN_ON(!param_item); | |
5110 | ||
5111 | devlink_param_notify(devlink_port->devlink, devlink_port->index, | |
5112 | param_item, DEVLINK_CMD_PORT_PARAM_NEW); | |
5113 | } | |
5114 | EXPORT_SYMBOL_GPL(devlink_port_param_value_changed); | |
5115 | ||
bde74ad1 MS |
5116 | /** |
5117 | * devlink_param_value_str_fill - Safely fill-up the string preventing | |
5118 | * from overflow of the preallocated buffer | |
5119 | * | |
5120 | * @dst_val: destination devlink_param_value | |
5121 | * @src: source buffer | |
5122 | */ | |
5123 | void devlink_param_value_str_fill(union devlink_param_value *dst_val, | |
5124 | const char *src) | |
5125 | { | |
5126 | size_t len; | |
5127 | ||
5128 | len = strlcpy(dst_val->vstr, src, __DEVLINK_PARAM_MAX_STRING_VALUE); | |
5129 | WARN_ON(len >= __DEVLINK_PARAM_MAX_STRING_VALUE); | |
5130 | } | |
5131 | EXPORT_SYMBOL_GPL(devlink_param_value_str_fill); | |
5132 | ||
b16ebe92 AV |
5133 | /** |
5134 | * devlink_region_create - create a new address region | |
5135 | * | |
5136 | * @devlink: devlink | |
5137 | * @region_name: region name | |
5138 | * @region_max_snapshots: Maximum supported number of snapshots for region | |
5139 | * @region_size: size of region | |
5140 | */ | |
5141 | struct devlink_region *devlink_region_create(struct devlink *devlink, | |
5142 | const char *region_name, | |
5143 | u32 region_max_snapshots, | |
5144 | u64 region_size) | |
5145 | { | |
5146 | struct devlink_region *region; | |
5147 | int err = 0; | |
5148 | ||
5149 | mutex_lock(&devlink->lock); | |
5150 | ||
5151 | if (devlink_region_get_by_name(devlink, region_name)) { | |
5152 | err = -EEXIST; | |
5153 | goto unlock; | |
5154 | } | |
5155 | ||
5156 | region = kzalloc(sizeof(*region), GFP_KERNEL); | |
5157 | if (!region) { | |
5158 | err = -ENOMEM; | |
5159 | goto unlock; | |
5160 | } | |
5161 | ||
5162 | region->devlink = devlink; | |
5163 | region->max_snapshots = region_max_snapshots; | |
5164 | region->name = region_name; | |
5165 | region->size = region_size; | |
5166 | INIT_LIST_HEAD(®ion->snapshot_list); | |
5167 | list_add_tail(®ion->list, &devlink->region_list); | |
866319bb | 5168 | devlink_nl_region_notify(region, NULL, DEVLINK_CMD_REGION_NEW); |
b16ebe92 AV |
5169 | |
5170 | mutex_unlock(&devlink->lock); | |
5171 | return region; | |
5172 | ||
5173 | unlock: | |
5174 | mutex_unlock(&devlink->lock); | |
5175 | return ERR_PTR(err); | |
5176 | } | |
5177 | EXPORT_SYMBOL_GPL(devlink_region_create); | |
5178 | ||
5179 | /** | |
5180 | * devlink_region_destroy - destroy address region | |
5181 | * | |
5182 | * @region: devlink region to destroy | |
5183 | */ | |
5184 | void devlink_region_destroy(struct devlink_region *region) | |
5185 | { | |
5186 | struct devlink *devlink = region->devlink; | |
d7e52722 | 5187 | struct devlink_snapshot *snapshot, *ts; |
b16ebe92 AV |
5188 | |
5189 | mutex_lock(&devlink->lock); | |
d7e52722 AV |
5190 | |
5191 | /* Free all snapshots of region */ | |
5192 | list_for_each_entry_safe(snapshot, ts, ®ion->snapshot_list, list) | |
5193 | devlink_region_snapshot_del(snapshot); | |
5194 | ||
b16ebe92 | 5195 | list_del(®ion->list); |
866319bb AV |
5196 | |
5197 | devlink_nl_region_notify(region, NULL, DEVLINK_CMD_REGION_DEL); | |
b16ebe92 AV |
5198 | mutex_unlock(&devlink->lock); |
5199 | kfree(region); | |
5200 | } | |
5201 | EXPORT_SYMBOL_GPL(devlink_region_destroy); | |
5202 | ||
ccadfa44 AV |
5203 | /** |
5204 | * devlink_region_shapshot_id_get - get snapshot ID | |
5205 | * | |
5206 | * This callback should be called when adding a new snapshot, | |
5207 | * Driver should use the same id for multiple snapshots taken | |
5208 | * on multiple regions at the same time/by the same trigger. | |
5209 | * | |
5210 | * @devlink: devlink | |
5211 | */ | |
5212 | u32 devlink_region_shapshot_id_get(struct devlink *devlink) | |
5213 | { | |
5214 | u32 id; | |
5215 | ||
5216 | mutex_lock(&devlink->lock); | |
5217 | id = ++devlink->snapshot_id; | |
5218 | mutex_unlock(&devlink->lock); | |
5219 | ||
5220 | return id; | |
5221 | } | |
5222 | EXPORT_SYMBOL_GPL(devlink_region_shapshot_id_get); | |
5223 | ||
d7e52722 AV |
5224 | /** |
5225 | * devlink_region_snapshot_create - create a new snapshot | |
5226 | * This will add a new snapshot of a region. The snapshot | |
5227 | * will be stored on the region struct and can be accessed | |
5228 | * from devlink. This is useful for future analyses of snapshots. | |
5229 | * Multiple snapshots can be created on a region. | |
5230 | * The @snapshot_id should be obtained using the getter function. | |
5231 | * | |
5232 | * @devlink_region: devlink region of the snapshot | |
5233 | * @data_len: size of snapshot data | |
5234 | * @data: snapshot data | |
5235 | * @snapshot_id: snapshot id to be created | |
5236 | * @data_destructor: pointer to destructor function to free data | |
5237 | */ | |
5238 | int devlink_region_snapshot_create(struct devlink_region *region, u64 data_len, | |
5239 | u8 *data, u32 snapshot_id, | |
5240 | devlink_snapshot_data_dest_t *data_destructor) | |
5241 | { | |
5242 | struct devlink *devlink = region->devlink; | |
5243 | struct devlink_snapshot *snapshot; | |
5244 | int err; | |
5245 | ||
5246 | mutex_lock(&devlink->lock); | |
5247 | ||
5248 | /* check if region can hold one more snapshot */ | |
5249 | if (region->cur_snapshots == region->max_snapshots) { | |
5250 | err = -ENOMEM; | |
5251 | goto unlock; | |
5252 | } | |
5253 | ||
5254 | if (devlink_region_snapshot_get_by_id(region, snapshot_id)) { | |
5255 | err = -EEXIST; | |
5256 | goto unlock; | |
5257 | } | |
5258 | ||
5259 | snapshot = kzalloc(sizeof(*snapshot), GFP_KERNEL); | |
5260 | if (!snapshot) { | |
5261 | err = -ENOMEM; | |
5262 | goto unlock; | |
5263 | } | |
5264 | ||
5265 | snapshot->id = snapshot_id; | |
5266 | snapshot->region = region; | |
5267 | snapshot->data = data; | |
5268 | snapshot->data_len = data_len; | |
5269 | snapshot->data_destructor = data_destructor; | |
5270 | ||
5271 | list_add_tail(&snapshot->list, ®ion->snapshot_list); | |
5272 | ||
5273 | region->cur_snapshots++; | |
5274 | ||
866319bb | 5275 | devlink_nl_region_notify(region, snapshot, DEVLINK_CMD_REGION_NEW); |
d7e52722 AV |
5276 | mutex_unlock(&devlink->lock); |
5277 | return 0; | |
5278 | ||
5279 | unlock: | |
5280 | mutex_unlock(&devlink->lock); | |
5281 | return err; | |
5282 | } | |
5283 | EXPORT_SYMBOL_GPL(devlink_region_snapshot_create); | |
5284 | ||
ddb6e99e JK |
5285 | static void __devlink_compat_running_version(struct devlink *devlink, |
5286 | char *buf, size_t len) | |
5287 | { | |
5288 | const struct nlattr *nlattr; | |
5289 | struct devlink_info_req req; | |
5290 | struct sk_buff *msg; | |
5291 | int rem, err; | |
5292 | ||
5293 | if (!devlink->ops->info_get) | |
5294 | return; | |
5295 | ||
5296 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
5297 | if (!msg) | |
5298 | return; | |
5299 | ||
5300 | req.msg = msg; | |
5301 | err = devlink->ops->info_get(devlink, &req, NULL); | |
5302 | if (err) | |
5303 | goto free_msg; | |
5304 | ||
5305 | nla_for_each_attr(nlattr, (void *)msg->data, msg->len, rem) { | |
5306 | const struct nlattr *kv; | |
5307 | int rem_kv; | |
5308 | ||
5309 | if (nla_type(nlattr) != DEVLINK_ATTR_INFO_VERSION_RUNNING) | |
5310 | continue; | |
5311 | ||
5312 | nla_for_each_nested(kv, nlattr, rem_kv) { | |
5313 | if (nla_type(kv) != DEVLINK_ATTR_INFO_VERSION_VALUE) | |
5314 | continue; | |
5315 | ||
5316 | strlcat(buf, nla_data(kv), len); | |
5317 | strlcat(buf, " ", len); | |
5318 | } | |
5319 | } | |
5320 | free_msg: | |
5321 | nlmsg_free(msg); | |
5322 | } | |
5323 | ||
5324 | void devlink_compat_running_version(struct net_device *dev, | |
5325 | char *buf, size_t len) | |
5326 | { | |
5327 | struct devlink_port *devlink_port; | |
5328 | struct devlink *devlink; | |
5329 | ||
5330 | mutex_lock(&devlink_mutex); | |
5331 | list_for_each_entry(devlink, &devlink_list, list) { | |
5332 | mutex_lock(&devlink->lock); | |
5333 | list_for_each_entry(devlink_port, &devlink->port_list, list) { | |
5334 | if (devlink_port->type == DEVLINK_PORT_TYPE_ETH || | |
5335 | devlink_port->type_dev == dev) { | |
5336 | __devlink_compat_running_version(devlink, | |
5337 | buf, len); | |
5338 | mutex_unlock(&devlink->lock); | |
5339 | goto out; | |
5340 | } | |
5341 | } | |
5342 | mutex_unlock(&devlink->lock); | |
5343 | } | |
5344 | out: | |
5345 | mutex_unlock(&devlink_mutex); | |
5346 | } | |
5347 | ||
bfcd3a46 JP |
5348 | static int __init devlink_module_init(void) |
5349 | { | |
489111e5 | 5350 | return genl_register_family(&devlink_nl_family); |
bfcd3a46 JP |
5351 | } |
5352 | ||
5353 | static void __exit devlink_module_exit(void) | |
5354 | { | |
5355 | genl_unregister_family(&devlink_nl_family); | |
5356 | } | |
5357 | ||
5358 | module_init(devlink_module_init); | |
5359 | module_exit(devlink_module_exit); | |
5360 | ||
5361 | MODULE_LICENSE("GPL v2"); | |
5362 | MODULE_AUTHOR("Jiri Pirko <jiri@mellanox.com>"); | |
5363 | MODULE_DESCRIPTION("Network physical device Netlink interface"); | |
5364 | MODULE_ALIAS_GENL_FAMILY(DEVLINK_GENL_NAME); |