Commit | Line | Data |
---|---|---|
2874c5fd | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
bfcd3a46 JP |
2 | /* |
3 | * net/core/devlink.c - Network physical/parent device Netlink interface | |
4 | * | |
5 | * Heavily inspired by net/wireless/ | |
6 | * Copyright (c) 2016 Mellanox Technologies. All rights reserved. | |
7 | * Copyright (c) 2016 Jiri Pirko <jiri@mellanox.com> | |
bfcd3a46 JP |
8 | */ |
9 | ||
10 | #include <linux/kernel.h> | |
11 | #include <linux/module.h> | |
12 | #include <linux/types.h> | |
13 | #include <linux/slab.h> | |
14 | #include <linux/gfp.h> | |
15 | #include <linux/device.h> | |
16 | #include <linux/list.h> | |
17 | #include <linux/netdevice.h> | |
b8f97554 | 18 | #include <linux/spinlock.h> |
b587bdaf | 19 | #include <linux/refcount.h> |
136bf27f | 20 | #include <linux/workqueue.h> |
0f420b6c IS |
21 | #include <linux/u64_stats_sync.h> |
22 | #include <linux/timekeeping.h> | |
bfcd3a46 JP |
23 | #include <rdma/ib_verbs.h> |
24 | #include <net/netlink.h> | |
25 | #include <net/genetlink.h> | |
26 | #include <net/rtnetlink.h> | |
27 | #include <net/net_namespace.h> | |
28 | #include <net/sock.h> | |
29 | #include <net/devlink.h> | |
e5224f0f JP |
30 | #define CREATE_TRACE_POINTS |
31 | #include <trace/events/devlink.h> | |
32 | ||
11770091 AS |
33 | static struct devlink_dpipe_field devlink_dpipe_fields_ethernet[] = { |
34 | { | |
12bdc5e1 | 35 | .name = "destination mac", |
11770091 AS |
36 | .id = DEVLINK_DPIPE_FIELD_ETHERNET_DST_MAC, |
37 | .bitwidth = 48, | |
38 | }, | |
39 | }; | |
40 | ||
41 | struct devlink_dpipe_header devlink_dpipe_header_ethernet = { | |
42 | .name = "ethernet", | |
43 | .id = DEVLINK_DPIPE_HEADER_ETHERNET, | |
44 | .fields = devlink_dpipe_fields_ethernet, | |
45 | .fields_count = ARRAY_SIZE(devlink_dpipe_fields_ethernet), | |
46 | .global = true, | |
47 | }; | |
48 | EXPORT_SYMBOL(devlink_dpipe_header_ethernet); | |
49 | ||
3fb886ec AS |
50 | static struct devlink_dpipe_field devlink_dpipe_fields_ipv4[] = { |
51 | { | |
52 | .name = "destination ip", | |
53 | .id = DEVLINK_DPIPE_FIELD_IPV4_DST_IP, | |
54 | .bitwidth = 32, | |
55 | }, | |
56 | }; | |
57 | ||
58 | struct devlink_dpipe_header devlink_dpipe_header_ipv4 = { | |
59 | .name = "ipv4", | |
60 | .id = DEVLINK_DPIPE_HEADER_IPV4, | |
61 | .fields = devlink_dpipe_fields_ipv4, | |
62 | .fields_count = ARRAY_SIZE(devlink_dpipe_fields_ipv4), | |
63 | .global = true, | |
64 | }; | |
65 | EXPORT_SYMBOL(devlink_dpipe_header_ipv4); | |
66 | ||
1797f5b3 AS |
67 | static struct devlink_dpipe_field devlink_dpipe_fields_ipv6[] = { |
68 | { | |
69 | .name = "destination ip", | |
70 | .id = DEVLINK_DPIPE_FIELD_IPV6_DST_IP, | |
71 | .bitwidth = 128, | |
72 | }, | |
73 | }; | |
74 | ||
75 | struct devlink_dpipe_header devlink_dpipe_header_ipv6 = { | |
76 | .name = "ipv6", | |
77 | .id = DEVLINK_DPIPE_HEADER_IPV6, | |
78 | .fields = devlink_dpipe_fields_ipv6, | |
79 | .fields_count = ARRAY_SIZE(devlink_dpipe_fields_ipv6), | |
80 | .global = true, | |
81 | }; | |
82 | EXPORT_SYMBOL(devlink_dpipe_header_ipv6); | |
83 | ||
e5224f0f | 84 | EXPORT_TRACEPOINT_SYMBOL_GPL(devlink_hwmsg); |
57186a5f | 85 | EXPORT_TRACEPOINT_SYMBOL_GPL(devlink_hwerr); |
5b88823b | 86 | EXPORT_TRACEPOINT_SYMBOL_GPL(devlink_trap_report); |
bfcd3a46 | 87 | |
a1e8ae90 PP |
88 | static const struct nla_policy devlink_function_nl_policy[DEVLINK_PORT_FUNCTION_ATTR_MAX + 1] = { |
89 | [DEVLINK_PORT_FUNCTION_ATTR_HW_ADDR] = { .type = NLA_BINARY }, | |
90 | }; | |
91 | ||
bfcd3a46 JP |
92 | static LIST_HEAD(devlink_list); |
93 | ||
94 | /* devlink_mutex | |
95 | * | |
96 | * An overall lock guarding every operation coming from userspace. | |
97 | * It also guards devlink devices list and it is taken when | |
98 | * driver registers/unregisters it. | |
99 | */ | |
100 | static DEFINE_MUTEX(devlink_mutex); | |
101 | ||
471f894f | 102 | struct net *devlink_net(const struct devlink *devlink) |
bfcd3a46 JP |
103 | { |
104 | return read_pnet(&devlink->_net); | |
105 | } | |
471f894f | 106 | EXPORT_SYMBOL_GPL(devlink_net); |
bfcd3a46 | 107 | |
8273fd84 | 108 | static void __devlink_net_set(struct devlink *devlink, struct net *net) |
bfcd3a46 JP |
109 | { |
110 | write_pnet(&devlink->_net, net); | |
111 | } | |
112 | ||
8273fd84 JP |
113 | void devlink_net_set(struct devlink *devlink, struct net *net) |
114 | { | |
115 | if (WARN_ON(devlink->registered)) | |
116 | return; | |
117 | __devlink_net_set(devlink, net); | |
118 | } | |
119 | EXPORT_SYMBOL_GPL(devlink_net_set); | |
120 | ||
bfcd3a46 JP |
121 | static struct devlink *devlink_get_from_attrs(struct net *net, |
122 | struct nlattr **attrs) | |
123 | { | |
124 | struct devlink *devlink; | |
125 | char *busname; | |
126 | char *devname; | |
127 | ||
128 | if (!attrs[DEVLINK_ATTR_BUS_NAME] || !attrs[DEVLINK_ATTR_DEV_NAME]) | |
129 | return ERR_PTR(-EINVAL); | |
130 | ||
131 | busname = nla_data(attrs[DEVLINK_ATTR_BUS_NAME]); | |
132 | devname = nla_data(attrs[DEVLINK_ATTR_DEV_NAME]); | |
133 | ||
dac7c08f PP |
134 | lockdep_assert_held(&devlink_mutex); |
135 | ||
bfcd3a46 JP |
136 | list_for_each_entry(devlink, &devlink_list, list) { |
137 | if (strcmp(devlink->dev->bus->name, busname) == 0 && | |
138 | strcmp(dev_name(devlink->dev), devname) == 0 && | |
139 | net_eq(devlink_net(devlink), net)) | |
140 | return devlink; | |
141 | } | |
142 | ||
143 | return ERR_PTR(-ENODEV); | |
144 | } | |
145 | ||
146 | static struct devlink *devlink_get_from_info(struct genl_info *info) | |
147 | { | |
148 | return devlink_get_from_attrs(genl_info_net(info), info->attrs); | |
149 | } | |
150 | ||
151 | static struct devlink_port *devlink_port_get_by_index(struct devlink *devlink, | |
c7282b50 | 152 | unsigned int port_index) |
bfcd3a46 JP |
153 | { |
154 | struct devlink_port *devlink_port; | |
155 | ||
156 | list_for_each_entry(devlink_port, &devlink->port_list, list) { | |
157 | if (devlink_port->index == port_index) | |
158 | return devlink_port; | |
159 | } | |
160 | return NULL; | |
161 | } | |
162 | ||
c7282b50 PP |
163 | static bool devlink_port_index_exists(struct devlink *devlink, |
164 | unsigned int port_index) | |
bfcd3a46 JP |
165 | { |
166 | return devlink_port_get_by_index(devlink, port_index); | |
167 | } | |
168 | ||
169 | static struct devlink_port *devlink_port_get_from_attrs(struct devlink *devlink, | |
170 | struct nlattr **attrs) | |
171 | { | |
172 | if (attrs[DEVLINK_ATTR_PORT_INDEX]) { | |
173 | u32 port_index = nla_get_u32(attrs[DEVLINK_ATTR_PORT_INDEX]); | |
174 | struct devlink_port *devlink_port; | |
175 | ||
176 | devlink_port = devlink_port_get_by_index(devlink, port_index); | |
177 | if (!devlink_port) | |
178 | return ERR_PTR(-ENODEV); | |
179 | return devlink_port; | |
180 | } | |
181 | return ERR_PTR(-EINVAL); | |
182 | } | |
183 | ||
184 | static struct devlink_port *devlink_port_get_from_info(struct devlink *devlink, | |
185 | struct genl_info *info) | |
186 | { | |
187 | return devlink_port_get_from_attrs(devlink, info->attrs); | |
188 | } | |
189 | ||
bf797471 JP |
190 | struct devlink_sb { |
191 | struct list_head list; | |
192 | unsigned int index; | |
193 | u32 size; | |
194 | u16 ingress_pools_count; | |
195 | u16 egress_pools_count; | |
196 | u16 ingress_tc_count; | |
197 | u16 egress_tc_count; | |
198 | }; | |
199 | ||
200 | static u16 devlink_sb_pool_count(struct devlink_sb *devlink_sb) | |
201 | { | |
202 | return devlink_sb->ingress_pools_count + devlink_sb->egress_pools_count; | |
203 | } | |
204 | ||
205 | static struct devlink_sb *devlink_sb_get_by_index(struct devlink *devlink, | |
206 | unsigned int sb_index) | |
207 | { | |
208 | struct devlink_sb *devlink_sb; | |
209 | ||
210 | list_for_each_entry(devlink_sb, &devlink->sb_list, list) { | |
211 | if (devlink_sb->index == sb_index) | |
212 | return devlink_sb; | |
213 | } | |
214 | return NULL; | |
215 | } | |
216 | ||
217 | static bool devlink_sb_index_exists(struct devlink *devlink, | |
218 | unsigned int sb_index) | |
219 | { | |
220 | return devlink_sb_get_by_index(devlink, sb_index); | |
221 | } | |
222 | ||
223 | static struct devlink_sb *devlink_sb_get_from_attrs(struct devlink *devlink, | |
224 | struct nlattr **attrs) | |
225 | { | |
226 | if (attrs[DEVLINK_ATTR_SB_INDEX]) { | |
227 | u32 sb_index = nla_get_u32(attrs[DEVLINK_ATTR_SB_INDEX]); | |
228 | struct devlink_sb *devlink_sb; | |
229 | ||
230 | devlink_sb = devlink_sb_get_by_index(devlink, sb_index); | |
231 | if (!devlink_sb) | |
232 | return ERR_PTR(-ENODEV); | |
233 | return devlink_sb; | |
234 | } | |
235 | return ERR_PTR(-EINVAL); | |
236 | } | |
237 | ||
238 | static struct devlink_sb *devlink_sb_get_from_info(struct devlink *devlink, | |
239 | struct genl_info *info) | |
240 | { | |
241 | return devlink_sb_get_from_attrs(devlink, info->attrs); | |
242 | } | |
243 | ||
244 | static int devlink_sb_pool_index_get_from_attrs(struct devlink_sb *devlink_sb, | |
245 | struct nlattr **attrs, | |
246 | u16 *p_pool_index) | |
247 | { | |
248 | u16 val; | |
249 | ||
250 | if (!attrs[DEVLINK_ATTR_SB_POOL_INDEX]) | |
251 | return -EINVAL; | |
252 | ||
253 | val = nla_get_u16(attrs[DEVLINK_ATTR_SB_POOL_INDEX]); | |
254 | if (val >= devlink_sb_pool_count(devlink_sb)) | |
255 | return -EINVAL; | |
256 | *p_pool_index = val; | |
257 | return 0; | |
258 | } | |
259 | ||
260 | static int devlink_sb_pool_index_get_from_info(struct devlink_sb *devlink_sb, | |
261 | struct genl_info *info, | |
262 | u16 *p_pool_index) | |
263 | { | |
264 | return devlink_sb_pool_index_get_from_attrs(devlink_sb, info->attrs, | |
265 | p_pool_index); | |
266 | } | |
267 | ||
268 | static int | |
269 | devlink_sb_pool_type_get_from_attrs(struct nlattr **attrs, | |
270 | enum devlink_sb_pool_type *p_pool_type) | |
271 | { | |
272 | u8 val; | |
273 | ||
274 | if (!attrs[DEVLINK_ATTR_SB_POOL_TYPE]) | |
275 | return -EINVAL; | |
276 | ||
277 | val = nla_get_u8(attrs[DEVLINK_ATTR_SB_POOL_TYPE]); | |
278 | if (val != DEVLINK_SB_POOL_TYPE_INGRESS && | |
279 | val != DEVLINK_SB_POOL_TYPE_EGRESS) | |
280 | return -EINVAL; | |
281 | *p_pool_type = val; | |
282 | return 0; | |
283 | } | |
284 | ||
285 | static int | |
286 | devlink_sb_pool_type_get_from_info(struct genl_info *info, | |
287 | enum devlink_sb_pool_type *p_pool_type) | |
288 | { | |
289 | return devlink_sb_pool_type_get_from_attrs(info->attrs, p_pool_type); | |
290 | } | |
291 | ||
292 | static int | |
293 | devlink_sb_th_type_get_from_attrs(struct nlattr **attrs, | |
294 | enum devlink_sb_threshold_type *p_th_type) | |
295 | { | |
296 | u8 val; | |
297 | ||
298 | if (!attrs[DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE]) | |
299 | return -EINVAL; | |
300 | ||
301 | val = nla_get_u8(attrs[DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE]); | |
302 | if (val != DEVLINK_SB_THRESHOLD_TYPE_STATIC && | |
303 | val != DEVLINK_SB_THRESHOLD_TYPE_DYNAMIC) | |
304 | return -EINVAL; | |
305 | *p_th_type = val; | |
306 | return 0; | |
307 | } | |
308 | ||
309 | static int | |
310 | devlink_sb_th_type_get_from_info(struct genl_info *info, | |
311 | enum devlink_sb_threshold_type *p_th_type) | |
312 | { | |
313 | return devlink_sb_th_type_get_from_attrs(info->attrs, p_th_type); | |
314 | } | |
315 | ||
316 | static int | |
317 | devlink_sb_tc_index_get_from_attrs(struct devlink_sb *devlink_sb, | |
318 | struct nlattr **attrs, | |
319 | enum devlink_sb_pool_type pool_type, | |
320 | u16 *p_tc_index) | |
321 | { | |
322 | u16 val; | |
323 | ||
324 | if (!attrs[DEVLINK_ATTR_SB_TC_INDEX]) | |
325 | return -EINVAL; | |
326 | ||
327 | val = nla_get_u16(attrs[DEVLINK_ATTR_SB_TC_INDEX]); | |
328 | if (pool_type == DEVLINK_SB_POOL_TYPE_INGRESS && | |
329 | val >= devlink_sb->ingress_tc_count) | |
330 | return -EINVAL; | |
331 | if (pool_type == DEVLINK_SB_POOL_TYPE_EGRESS && | |
332 | val >= devlink_sb->egress_tc_count) | |
333 | return -EINVAL; | |
334 | *p_tc_index = val; | |
335 | return 0; | |
336 | } | |
337 | ||
338 | static int | |
339 | devlink_sb_tc_index_get_from_info(struct devlink_sb *devlink_sb, | |
340 | struct genl_info *info, | |
341 | enum devlink_sb_pool_type pool_type, | |
342 | u16 *p_tc_index) | |
343 | { | |
344 | return devlink_sb_tc_index_get_from_attrs(devlink_sb, info->attrs, | |
345 | pool_type, p_tc_index); | |
346 | } | |
347 | ||
b16ebe92 AV |
348 | struct devlink_region { |
349 | struct devlink *devlink; | |
544e7c33 | 350 | struct devlink_port *port; |
b16ebe92 | 351 | struct list_head list; |
544e7c33 AL |
352 | union { |
353 | const struct devlink_region_ops *ops; | |
354 | const struct devlink_port_region_ops *port_ops; | |
355 | }; | |
b16ebe92 AV |
356 | struct list_head snapshot_list; |
357 | u32 max_snapshots; | |
358 | u32 cur_snapshots; | |
359 | u64 size; | |
360 | }; | |
361 | ||
d7e52722 AV |
362 | struct devlink_snapshot { |
363 | struct list_head list; | |
364 | struct devlink_region *region; | |
d7e52722 AV |
365 | u8 *data; |
366 | u32 id; | |
367 | }; | |
368 | ||
b16ebe92 AV |
369 | static struct devlink_region * |
370 | devlink_region_get_by_name(struct devlink *devlink, const char *region_name) | |
371 | { | |
372 | struct devlink_region *region; | |
373 | ||
374 | list_for_each_entry(region, &devlink->region_list, list) | |
e8937681 | 375 | if (!strcmp(region->ops->name, region_name)) |
b16ebe92 AV |
376 | return region; |
377 | ||
378 | return NULL; | |
379 | } | |
380 | ||
544e7c33 AL |
381 | static struct devlink_region * |
382 | devlink_port_region_get_by_name(struct devlink_port *port, | |
383 | const char *region_name) | |
384 | { | |
385 | struct devlink_region *region; | |
386 | ||
387 | list_for_each_entry(region, &port->region_list, list) | |
388 | if (!strcmp(region->ops->name, region_name)) | |
389 | return region; | |
390 | ||
391 | return NULL; | |
392 | } | |
393 | ||
d7e52722 AV |
394 | static struct devlink_snapshot * |
395 | devlink_region_snapshot_get_by_id(struct devlink_region *region, u32 id) | |
396 | { | |
397 | struct devlink_snapshot *snapshot; | |
398 | ||
399 | list_for_each_entry(snapshot, ®ion->snapshot_list, list) | |
400 | if (snapshot->id == id) | |
401 | return snapshot; | |
402 | ||
403 | return NULL; | |
404 | } | |
405 | ||
637989b5 PP |
406 | #define DEVLINK_NL_FLAG_NEED_PORT BIT(0) |
407 | #define DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT BIT(1) | |
2406e7e5 AS |
408 | |
409 | /* The per devlink instance lock is taken by default in the pre-doit | |
410 | * operation, yet several commands do not require this. The global | |
411 | * devlink lock is taken and protects from disruption by user-calls. | |
412 | */ | |
637989b5 | 413 | #define DEVLINK_NL_FLAG_NO_LOCK BIT(2) |
bfcd3a46 JP |
414 | |
415 | static int devlink_nl_pre_doit(const struct genl_ops *ops, | |
416 | struct sk_buff *skb, struct genl_info *info) | |
417 | { | |
f4f54166 | 418 | struct devlink_port *devlink_port; |
bfcd3a46 | 419 | struct devlink *devlink; |
2406e7e5 | 420 | int err; |
bfcd3a46 JP |
421 | |
422 | mutex_lock(&devlink_mutex); | |
423 | devlink = devlink_get_from_info(info); | |
424 | if (IS_ERR(devlink)) { | |
425 | mutex_unlock(&devlink_mutex); | |
426 | return PTR_ERR(devlink); | |
427 | } | |
2406e7e5 AS |
428 | if (~ops->internal_flags & DEVLINK_NL_FLAG_NO_LOCK) |
429 | mutex_lock(&devlink->lock); | |
637989b5 PP |
430 | info->user_ptr[0] = devlink; |
431 | if (ops->internal_flags & DEVLINK_NL_FLAG_NEED_PORT) { | |
bfcd3a46 JP |
432 | devlink_port = devlink_port_get_from_info(devlink, info); |
433 | if (IS_ERR(devlink_port)) { | |
2406e7e5 AS |
434 | err = PTR_ERR(devlink_port); |
435 | goto unlock; | |
bfcd3a46 | 436 | } |
637989b5 | 437 | info->user_ptr[1] = devlink_port; |
f4f54166 | 438 | } else if (ops->internal_flags & DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT) { |
f4f54166 VT |
439 | devlink_port = devlink_port_get_from_info(devlink, info); |
440 | if (!IS_ERR(devlink_port)) | |
441 | info->user_ptr[1] = devlink_port; | |
bfcd3a46 JP |
442 | } |
443 | return 0; | |
2406e7e5 AS |
444 | |
445 | unlock: | |
446 | if (~ops->internal_flags & DEVLINK_NL_FLAG_NO_LOCK) | |
447 | mutex_unlock(&devlink->lock); | |
448 | mutex_unlock(&devlink_mutex); | |
449 | return err; | |
bfcd3a46 JP |
450 | } |
451 | ||
452 | static void devlink_nl_post_doit(const struct genl_ops *ops, | |
453 | struct sk_buff *skb, struct genl_info *info) | |
454 | { | |
2406e7e5 AS |
455 | struct devlink *devlink; |
456 | ||
637989b5 PP |
457 | devlink = info->user_ptr[0]; |
458 | if (~ops->internal_flags & DEVLINK_NL_FLAG_NO_LOCK) | |
2406e7e5 | 459 | mutex_unlock(&devlink->lock); |
bfcd3a46 JP |
460 | mutex_unlock(&devlink_mutex); |
461 | } | |
462 | ||
489111e5 | 463 | static struct genl_family devlink_nl_family; |
bfcd3a46 JP |
464 | |
465 | enum devlink_multicast_groups { | |
466 | DEVLINK_MCGRP_CONFIG, | |
467 | }; | |
468 | ||
469 | static const struct genl_multicast_group devlink_nl_mcgrps[] = { | |
470 | [DEVLINK_MCGRP_CONFIG] = { .name = DEVLINK_GENL_MCGRP_CONFIG_NAME }, | |
471 | }; | |
472 | ||
473 | static int devlink_nl_put_handle(struct sk_buff *msg, struct devlink *devlink) | |
474 | { | |
475 | if (nla_put_string(msg, DEVLINK_ATTR_BUS_NAME, devlink->dev->bus->name)) | |
476 | return -EMSGSIZE; | |
477 | if (nla_put_string(msg, DEVLINK_ATTR_DEV_NAME, dev_name(devlink->dev))) | |
478 | return -EMSGSIZE; | |
479 | return 0; | |
480 | } | |
481 | ||
dc64cc7c MS |
482 | struct devlink_reload_combination { |
483 | enum devlink_reload_action action; | |
484 | enum devlink_reload_limit limit; | |
485 | }; | |
486 | ||
487 | static const struct devlink_reload_combination devlink_reload_invalid_combinations[] = { | |
488 | { | |
489 | /* can't reinitialize driver with no down time */ | |
490 | .action = DEVLINK_RELOAD_ACTION_DRIVER_REINIT, | |
491 | .limit = DEVLINK_RELOAD_LIMIT_NO_RESET, | |
492 | }, | |
493 | }; | |
494 | ||
495 | static bool | |
496 | devlink_reload_combination_is_invalid(enum devlink_reload_action action, | |
497 | enum devlink_reload_limit limit) | |
498 | { | |
499 | int i; | |
500 | ||
501 | for (i = 0; i < ARRAY_SIZE(devlink_reload_invalid_combinations); i++) | |
502 | if (devlink_reload_invalid_combinations[i].action == action && | |
503 | devlink_reload_invalid_combinations[i].limit == limit) | |
504 | return true; | |
505 | return false; | |
506 | } | |
507 | ||
ccdf0721 MS |
508 | static bool |
509 | devlink_reload_action_is_supported(struct devlink *devlink, enum devlink_reload_action action) | |
510 | { | |
511 | return test_bit(action, &devlink->ops->reload_actions); | |
512 | } | |
513 | ||
dc64cc7c MS |
514 | static bool |
515 | devlink_reload_limit_is_supported(struct devlink *devlink, enum devlink_reload_limit limit) | |
516 | { | |
517 | return test_bit(limit, &devlink->ops->reload_limits); | |
518 | } | |
519 | ||
5204bb68 | 520 | static int devlink_reload_stat_put(struct sk_buff *msg, |
a254c264 MS |
521 | enum devlink_reload_limit limit, u32 value) |
522 | { | |
523 | struct nlattr *reload_stats_entry; | |
524 | ||
525 | reload_stats_entry = nla_nest_start(msg, DEVLINK_ATTR_RELOAD_STATS_ENTRY); | |
526 | if (!reload_stats_entry) | |
527 | return -EMSGSIZE; | |
528 | ||
5204bb68 | 529 | if (nla_put_u8(msg, DEVLINK_ATTR_RELOAD_STATS_LIMIT, limit) || |
a254c264 MS |
530 | nla_put_u32(msg, DEVLINK_ATTR_RELOAD_STATS_VALUE, value)) |
531 | goto nla_put_failure; | |
532 | nla_nest_end(msg, reload_stats_entry); | |
533 | return 0; | |
534 | ||
535 | nla_put_failure: | |
536 | nla_nest_cancel(msg, reload_stats_entry); | |
537 | return -EMSGSIZE; | |
538 | } | |
539 | ||
77069ba2 | 540 | static int devlink_reload_stats_put(struct sk_buff *msg, struct devlink *devlink, bool is_remote) |
a254c264 | 541 | { |
5204bb68 | 542 | struct nlattr *reload_stats_attr, *act_info, *act_stats; |
a254c264 MS |
543 | int i, j, stat_idx; |
544 | u32 value; | |
545 | ||
77069ba2 MS |
546 | if (!is_remote) |
547 | reload_stats_attr = nla_nest_start(msg, DEVLINK_ATTR_RELOAD_STATS); | |
548 | else | |
549 | reload_stats_attr = nla_nest_start(msg, DEVLINK_ATTR_REMOTE_RELOAD_STATS); | |
a254c264 MS |
550 | |
551 | if (!reload_stats_attr) | |
552 | return -EMSGSIZE; | |
553 | ||
5204bb68 MS |
554 | for (i = 0; i <= DEVLINK_RELOAD_ACTION_MAX; i++) { |
555 | if ((!is_remote && | |
556 | !devlink_reload_action_is_supported(devlink, i)) || | |
557 | i == DEVLINK_RELOAD_ACTION_UNSPEC) | |
a254c264 | 558 | continue; |
5204bb68 MS |
559 | act_info = nla_nest_start(msg, DEVLINK_ATTR_RELOAD_ACTION_INFO); |
560 | if (!act_info) | |
561 | goto nla_put_failure; | |
562 | ||
563 | if (nla_put_u8(msg, DEVLINK_ATTR_RELOAD_ACTION, i)) | |
564 | goto action_info_nest_cancel; | |
565 | act_stats = nla_nest_start(msg, DEVLINK_ATTR_RELOAD_ACTION_STATS); | |
566 | if (!act_stats) | |
567 | goto action_info_nest_cancel; | |
568 | ||
569 | for (j = 0; j <= DEVLINK_RELOAD_LIMIT_MAX; j++) { | |
570 | /* Remote stats are shown even if not locally supported. | |
571 | * Stats of actions with unspecified limit are shown | |
572 | * though drivers don't need to register unspecified | |
573 | * limit. | |
574 | */ | |
575 | if ((!is_remote && j != DEVLINK_RELOAD_LIMIT_UNSPEC && | |
576 | !devlink_reload_limit_is_supported(devlink, j)) || | |
a254c264 MS |
577 | devlink_reload_combination_is_invalid(i, j)) |
578 | continue; | |
579 | ||
580 | stat_idx = j * __DEVLINK_RELOAD_ACTION_MAX + i; | |
77069ba2 MS |
581 | if (!is_remote) |
582 | value = devlink->stats.reload_stats[stat_idx]; | |
583 | else | |
584 | value = devlink->stats.remote_reload_stats[stat_idx]; | |
5204bb68 MS |
585 | if (devlink_reload_stat_put(msg, j, value)) |
586 | goto action_stats_nest_cancel; | |
a254c264 | 587 | } |
5204bb68 MS |
588 | nla_nest_end(msg, act_stats); |
589 | nla_nest_end(msg, act_info); | |
a254c264 MS |
590 | } |
591 | nla_nest_end(msg, reload_stats_attr); | |
592 | return 0; | |
593 | ||
5204bb68 MS |
594 | action_stats_nest_cancel: |
595 | nla_nest_cancel(msg, act_stats); | |
596 | action_info_nest_cancel: | |
597 | nla_nest_cancel(msg, act_info); | |
a254c264 MS |
598 | nla_put_failure: |
599 | nla_nest_cancel(msg, reload_stats_attr); | |
600 | return -EMSGSIZE; | |
601 | } | |
602 | ||
bfcd3a46 JP |
603 | static int devlink_nl_fill(struct sk_buff *msg, struct devlink *devlink, |
604 | enum devlink_command cmd, u32 portid, | |
605 | u32 seq, int flags) | |
606 | { | |
a254c264 | 607 | struct nlattr *dev_stats; |
bfcd3a46 JP |
608 | void *hdr; |
609 | ||
610 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
611 | if (!hdr) | |
612 | return -EMSGSIZE; | |
613 | ||
614 | if (devlink_nl_put_handle(msg, devlink)) | |
615 | goto nla_put_failure; | |
2670ac26 JP |
616 | if (nla_put_u8(msg, DEVLINK_ATTR_RELOAD_FAILED, devlink->reload_failed)) |
617 | goto nla_put_failure; | |
bfcd3a46 | 618 | |
a254c264 MS |
619 | dev_stats = nla_nest_start(msg, DEVLINK_ATTR_DEV_STATS); |
620 | if (!dev_stats) | |
621 | goto nla_put_failure; | |
622 | ||
77069ba2 MS |
623 | if (devlink_reload_stats_put(msg, devlink, false)) |
624 | goto dev_stats_nest_cancel; | |
625 | if (devlink_reload_stats_put(msg, devlink, true)) | |
a254c264 MS |
626 | goto dev_stats_nest_cancel; |
627 | ||
628 | nla_nest_end(msg, dev_stats); | |
bfcd3a46 JP |
629 | genlmsg_end(msg, hdr); |
630 | return 0; | |
631 | ||
a254c264 MS |
632 | dev_stats_nest_cancel: |
633 | nla_nest_cancel(msg, dev_stats); | |
bfcd3a46 JP |
634 | nla_put_failure: |
635 | genlmsg_cancel(msg, hdr); | |
636 | return -EMSGSIZE; | |
637 | } | |
638 | ||
639 | static void devlink_notify(struct devlink *devlink, enum devlink_command cmd) | |
640 | { | |
641 | struct sk_buff *msg; | |
642 | int err; | |
643 | ||
644 | WARN_ON(cmd != DEVLINK_CMD_NEW && cmd != DEVLINK_CMD_DEL); | |
645 | ||
646 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
647 | if (!msg) | |
648 | return; | |
649 | ||
650 | err = devlink_nl_fill(msg, devlink, cmd, 0, 0, 0); | |
651 | if (err) { | |
652 | nlmsg_free(msg); | |
653 | return; | |
654 | } | |
655 | ||
656 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), | |
657 | msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
658 | } | |
659 | ||
b9ffcbaf JP |
660 | static int devlink_nl_port_attrs_put(struct sk_buff *msg, |
661 | struct devlink_port *devlink_port) | |
662 | { | |
663 | struct devlink_port_attrs *attrs = &devlink_port->attrs; | |
664 | ||
10a429ba | 665 | if (!devlink_port->attrs_set) |
b9ffcbaf | 666 | return 0; |
a21cf0a8 DR |
667 | if (attrs->lanes) { |
668 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_LANES, attrs->lanes)) | |
669 | return -EMSGSIZE; | |
670 | } | |
a0f49b54 DR |
671 | if (nla_put_u8(msg, DEVLINK_ATTR_PORT_SPLITTABLE, attrs->splittable)) |
672 | return -EMSGSIZE; | |
5ec1380a JP |
673 | if (nla_put_u16(msg, DEVLINK_ATTR_PORT_FLAVOUR, attrs->flavour)) |
674 | return -EMSGSIZE; | |
58b6be41 PP |
675 | switch (devlink_port->attrs.flavour) { |
676 | case DEVLINK_PORT_FLAVOUR_PCI_PF: | |
3a2d9588 PP |
677 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_CONTROLLER_NUMBER, |
678 | attrs->pci_pf.controller) || | |
679 | nla_put_u16(msg, DEVLINK_ATTR_PORT_PCI_PF_NUMBER, attrs->pci_pf.pf)) | |
98fd2d65 | 680 | return -EMSGSIZE; |
05b595e9 PP |
681 | if (nla_put_u8(msg, DEVLINK_ATTR_PORT_EXTERNAL, attrs->pci_pf.external)) |
682 | return -EMSGSIZE; | |
58b6be41 PP |
683 | break; |
684 | case DEVLINK_PORT_FLAVOUR_PCI_VF: | |
3a2d9588 PP |
685 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_CONTROLLER_NUMBER, |
686 | attrs->pci_vf.controller) || | |
687 | nla_put_u16(msg, DEVLINK_ATTR_PORT_PCI_PF_NUMBER, attrs->pci_vf.pf) || | |
688 | nla_put_u16(msg, DEVLINK_ATTR_PORT_PCI_VF_NUMBER, attrs->pci_vf.vf)) | |
e41b6bf3 | 689 | return -EMSGSIZE; |
05b595e9 PP |
690 | if (nla_put_u8(msg, DEVLINK_ATTR_PORT_EXTERNAL, attrs->pci_vf.external)) |
691 | return -EMSGSIZE; | |
58b6be41 PP |
692 | break; |
693 | case DEVLINK_PORT_FLAVOUR_PHYSICAL: | |
694 | case DEVLINK_PORT_FLAVOUR_CPU: | |
695 | case DEVLINK_PORT_FLAVOUR_DSA: | |
acf1ee44 | 696 | case DEVLINK_PORT_FLAVOUR_VIRTUAL: |
58b6be41 PP |
697 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_NUMBER, |
698 | attrs->phys.port_number)) | |
699 | return -EMSGSIZE; | |
700 | if (!attrs->split) | |
701 | return 0; | |
702 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_SPLIT_GROUP, | |
703 | attrs->phys.port_number)) | |
704 | return -EMSGSIZE; | |
705 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_SPLIT_SUBPORT_NUMBER, | |
706 | attrs->phys.split_subport_number)) | |
707 | return -EMSGSIZE; | |
708 | break; | |
709 | default: | |
710 | break; | |
98fd2d65 | 711 | } |
b9ffcbaf JP |
712 | return 0; |
713 | } | |
714 | ||
2a916ecc PP |
715 | static int |
716 | devlink_nl_port_function_attrs_put(struct sk_buff *msg, struct devlink_port *port, | |
717 | struct netlink_ext_ack *extack) | |
718 | { | |
719 | struct devlink *devlink = port->devlink; | |
720 | const struct devlink_ops *ops; | |
721 | struct nlattr *function_attr; | |
722 | bool empty_nest = true; | |
723 | int err = 0; | |
724 | ||
725 | function_attr = nla_nest_start_noflag(msg, DEVLINK_ATTR_PORT_FUNCTION); | |
726 | if (!function_attr) | |
727 | return -EMSGSIZE; | |
728 | ||
729 | ops = devlink->ops; | |
730 | if (ops->port_function_hw_addr_get) { | |
29cb9868 | 731 | int hw_addr_len; |
2a916ecc PP |
732 | u8 hw_addr[MAX_ADDR_LEN]; |
733 | ||
734 | err = ops->port_function_hw_addr_get(devlink, port, hw_addr, &hw_addr_len, extack); | |
735 | if (err == -EOPNOTSUPP) { | |
736 | /* Port function attributes are optional for a port. If port doesn't | |
737 | * support function attribute, returning -EOPNOTSUPP is not an error. | |
738 | */ | |
739 | err = 0; | |
740 | goto out; | |
741 | } else if (err) { | |
742 | goto out; | |
743 | } | |
744 | err = nla_put(msg, DEVLINK_PORT_FUNCTION_ATTR_HW_ADDR, hw_addr_len, hw_addr); | |
745 | if (err) | |
746 | goto out; | |
747 | empty_nest = false; | |
748 | } | |
749 | ||
750 | out: | |
751 | if (err || empty_nest) | |
752 | nla_nest_cancel(msg, function_attr); | |
753 | else | |
754 | nla_nest_end(msg, function_attr); | |
755 | return err; | |
756 | } | |
757 | ||
bfcd3a46 JP |
758 | static int devlink_nl_port_fill(struct sk_buff *msg, struct devlink *devlink, |
759 | struct devlink_port *devlink_port, | |
760 | enum devlink_command cmd, u32 portid, | |
a829eb0d PP |
761 | u32 seq, int flags, |
762 | struct netlink_ext_ack *extack) | |
bfcd3a46 JP |
763 | { |
764 | void *hdr; | |
765 | ||
766 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
767 | if (!hdr) | |
768 | return -EMSGSIZE; | |
769 | ||
770 | if (devlink_nl_put_handle(msg, devlink)) | |
771 | goto nla_put_failure; | |
772 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, devlink_port->index)) | |
773 | goto nla_put_failure; | |
b8f97554 | 774 | |
b187c9b4 PP |
775 | /* Hold rtnl lock while accessing port's netdev attributes. */ |
776 | rtnl_lock(); | |
0f420b6c | 777 | spin_lock_bh(&devlink_port->type_lock); |
bfcd3a46 | 778 | if (nla_put_u16(msg, DEVLINK_ATTR_PORT_TYPE, devlink_port->type)) |
b8f97554 | 779 | goto nla_put_failure_type_locked; |
bfcd3a46 JP |
780 | if (devlink_port->desired_type != DEVLINK_PORT_TYPE_NOTSET && |
781 | nla_put_u16(msg, DEVLINK_ATTR_PORT_DESIRED_TYPE, | |
782 | devlink_port->desired_type)) | |
b8f97554 | 783 | goto nla_put_failure_type_locked; |
bfcd3a46 | 784 | if (devlink_port->type == DEVLINK_PORT_TYPE_ETH) { |
a7b43649 | 785 | struct net *net = devlink_net(devlink_port->devlink); |
bfcd3a46 JP |
786 | struct net_device *netdev = devlink_port->type_dev; |
787 | ||
a7b43649 | 788 | if (netdev && net_eq(net, dev_net(netdev)) && |
bfcd3a46 JP |
789 | (nla_put_u32(msg, DEVLINK_ATTR_PORT_NETDEV_IFINDEX, |
790 | netdev->ifindex) || | |
791 | nla_put_string(msg, DEVLINK_ATTR_PORT_NETDEV_NAME, | |
792 | netdev->name))) | |
b8f97554 | 793 | goto nla_put_failure_type_locked; |
bfcd3a46 JP |
794 | } |
795 | if (devlink_port->type == DEVLINK_PORT_TYPE_IB) { | |
796 | struct ib_device *ibdev = devlink_port->type_dev; | |
797 | ||
798 | if (ibdev && | |
799 | nla_put_string(msg, DEVLINK_ATTR_PORT_IBDEV_NAME, | |
800 | ibdev->name)) | |
b8f97554 | 801 | goto nla_put_failure_type_locked; |
bfcd3a46 | 802 | } |
0f420b6c | 803 | spin_unlock_bh(&devlink_port->type_lock); |
b187c9b4 | 804 | rtnl_unlock(); |
b9ffcbaf | 805 | if (devlink_nl_port_attrs_put(msg, devlink_port)) |
bfcd3a46 | 806 | goto nla_put_failure; |
2a916ecc PP |
807 | if (devlink_nl_port_function_attrs_put(msg, devlink_port, extack)) |
808 | goto nla_put_failure; | |
bfcd3a46 JP |
809 | |
810 | genlmsg_end(msg, hdr); | |
811 | return 0; | |
812 | ||
b8f97554 | 813 | nla_put_failure_type_locked: |
0f420b6c | 814 | spin_unlock_bh(&devlink_port->type_lock); |
b187c9b4 | 815 | rtnl_unlock(); |
bfcd3a46 JP |
816 | nla_put_failure: |
817 | genlmsg_cancel(msg, hdr); | |
818 | return -EMSGSIZE; | |
819 | } | |
820 | ||
821 | static void devlink_port_notify(struct devlink_port *devlink_port, | |
822 | enum devlink_command cmd) | |
823 | { | |
824 | struct devlink *devlink = devlink_port->devlink; | |
825 | struct sk_buff *msg; | |
826 | int err; | |
827 | ||
828 | if (!devlink_port->registered) | |
829 | return; | |
830 | ||
831 | WARN_ON(cmd != DEVLINK_CMD_PORT_NEW && cmd != DEVLINK_CMD_PORT_DEL); | |
832 | ||
833 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
834 | if (!msg) | |
835 | return; | |
836 | ||
a829eb0d PP |
837 | err = devlink_nl_port_fill(msg, devlink, devlink_port, cmd, 0, 0, 0, |
838 | NULL); | |
bfcd3a46 JP |
839 | if (err) { |
840 | nlmsg_free(msg); | |
841 | return; | |
842 | } | |
843 | ||
844 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), | |
845 | msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
846 | } | |
847 | ||
848 | static int devlink_nl_cmd_get_doit(struct sk_buff *skb, struct genl_info *info) | |
849 | { | |
850 | struct devlink *devlink = info->user_ptr[0]; | |
851 | struct sk_buff *msg; | |
852 | int err; | |
853 | ||
854 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
855 | if (!msg) | |
856 | return -ENOMEM; | |
857 | ||
858 | err = devlink_nl_fill(msg, devlink, DEVLINK_CMD_NEW, | |
859 | info->snd_portid, info->snd_seq, 0); | |
860 | if (err) { | |
861 | nlmsg_free(msg); | |
862 | return err; | |
863 | } | |
864 | ||
865 | return genlmsg_reply(msg, info); | |
866 | } | |
867 | ||
868 | static int devlink_nl_cmd_get_dumpit(struct sk_buff *msg, | |
869 | struct netlink_callback *cb) | |
870 | { | |
871 | struct devlink *devlink; | |
872 | int start = cb->args[0]; | |
873 | int idx = 0; | |
874 | int err; | |
875 | ||
876 | mutex_lock(&devlink_mutex); | |
877 | list_for_each_entry(devlink, &devlink_list, list) { | |
878 | if (!net_eq(devlink_net(devlink), sock_net(msg->sk))) | |
879 | continue; | |
880 | if (idx < start) { | |
881 | idx++; | |
882 | continue; | |
883 | } | |
884 | err = devlink_nl_fill(msg, devlink, DEVLINK_CMD_NEW, | |
885 | NETLINK_CB(cb->skb).portid, | |
886 | cb->nlh->nlmsg_seq, NLM_F_MULTI); | |
887 | if (err) | |
888 | goto out; | |
889 | idx++; | |
890 | } | |
891 | out: | |
892 | mutex_unlock(&devlink_mutex); | |
893 | ||
894 | cb->args[0] = idx; | |
895 | return msg->len; | |
896 | } | |
897 | ||
898 | static int devlink_nl_cmd_port_get_doit(struct sk_buff *skb, | |
899 | struct genl_info *info) | |
900 | { | |
637989b5 | 901 | struct devlink_port *devlink_port = info->user_ptr[1]; |
1fc2257e | 902 | struct devlink *devlink = devlink_port->devlink; |
bfcd3a46 JP |
903 | struct sk_buff *msg; |
904 | int err; | |
905 | ||
906 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
907 | if (!msg) | |
908 | return -ENOMEM; | |
909 | ||
910 | err = devlink_nl_port_fill(msg, devlink, devlink_port, | |
911 | DEVLINK_CMD_PORT_NEW, | |
a829eb0d PP |
912 | info->snd_portid, info->snd_seq, 0, |
913 | info->extack); | |
bfcd3a46 JP |
914 | if (err) { |
915 | nlmsg_free(msg); | |
916 | return err; | |
917 | } | |
918 | ||
919 | return genlmsg_reply(msg, info); | |
920 | } | |
921 | ||
922 | static int devlink_nl_cmd_port_get_dumpit(struct sk_buff *msg, | |
923 | struct netlink_callback *cb) | |
924 | { | |
925 | struct devlink *devlink; | |
926 | struct devlink_port *devlink_port; | |
927 | int start = cb->args[0]; | |
928 | int idx = 0; | |
929 | int err; | |
930 | ||
931 | mutex_lock(&devlink_mutex); | |
bfcd3a46 JP |
932 | list_for_each_entry(devlink, &devlink_list, list) { |
933 | if (!net_eq(devlink_net(devlink), sock_net(msg->sk))) | |
934 | continue; | |
2406e7e5 | 935 | mutex_lock(&devlink->lock); |
bfcd3a46 JP |
936 | list_for_each_entry(devlink_port, &devlink->port_list, list) { |
937 | if (idx < start) { | |
938 | idx++; | |
939 | continue; | |
940 | } | |
941 | err = devlink_nl_port_fill(msg, devlink, devlink_port, | |
942 | DEVLINK_CMD_NEW, | |
943 | NETLINK_CB(cb->skb).portid, | |
944 | cb->nlh->nlmsg_seq, | |
a829eb0d PP |
945 | NLM_F_MULTI, |
946 | cb->extack); | |
2406e7e5 AS |
947 | if (err) { |
948 | mutex_unlock(&devlink->lock); | |
bfcd3a46 | 949 | goto out; |
2406e7e5 | 950 | } |
bfcd3a46 JP |
951 | idx++; |
952 | } | |
2406e7e5 | 953 | mutex_unlock(&devlink->lock); |
bfcd3a46 JP |
954 | } |
955 | out: | |
bfcd3a46 JP |
956 | mutex_unlock(&devlink_mutex); |
957 | ||
958 | cb->args[0] = idx; | |
959 | return msg->len; | |
960 | } | |
961 | ||
962 | static int devlink_port_type_set(struct devlink *devlink, | |
963 | struct devlink_port *devlink_port, | |
964 | enum devlink_port_type port_type) | |
965 | ||
966 | { | |
967 | int err; | |
968 | ||
be6fe1d8 | 969 | if (devlink->ops->port_type_set) { |
6edf1017 ER |
970 | if (port_type == devlink_port->type) |
971 | return 0; | |
bfcd3a46 JP |
972 | err = devlink->ops->port_type_set(devlink_port, port_type); |
973 | if (err) | |
974 | return err; | |
975 | devlink_port->desired_type = port_type; | |
976 | devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_NEW); | |
977 | return 0; | |
978 | } | |
979 | return -EOPNOTSUPP; | |
980 | } | |
981 | ||
a1e8ae90 PP |
982 | static int |
983 | devlink_port_function_hw_addr_set(struct devlink *devlink, struct devlink_port *port, | |
984 | const struct nlattr *attr, struct netlink_ext_ack *extack) | |
985 | { | |
986 | const struct devlink_ops *ops; | |
987 | const u8 *hw_addr; | |
988 | int hw_addr_len; | |
989 | int err; | |
990 | ||
991 | hw_addr = nla_data(attr); | |
992 | hw_addr_len = nla_len(attr); | |
993 | if (hw_addr_len > MAX_ADDR_LEN) { | |
994 | NL_SET_ERR_MSG_MOD(extack, "Port function hardware address too long"); | |
995 | return -EINVAL; | |
996 | } | |
997 | if (port->type == DEVLINK_PORT_TYPE_ETH) { | |
998 | if (hw_addr_len != ETH_ALEN) { | |
999 | NL_SET_ERR_MSG_MOD(extack, "Address must be 6 bytes for Ethernet device"); | |
1000 | return -EINVAL; | |
1001 | } | |
1002 | if (!is_unicast_ether_addr(hw_addr)) { | |
1003 | NL_SET_ERR_MSG_MOD(extack, "Non-unicast hardware address unsupported"); | |
1004 | return -EINVAL; | |
1005 | } | |
1006 | } | |
1007 | ||
1008 | ops = devlink->ops; | |
1009 | if (!ops->port_function_hw_addr_set) { | |
1010 | NL_SET_ERR_MSG_MOD(extack, "Port doesn't support function attributes"); | |
1011 | return -EOPNOTSUPP; | |
1012 | } | |
1013 | ||
1014 | err = ops->port_function_hw_addr_set(devlink, port, hw_addr, hw_addr_len, extack); | |
1015 | if (err) | |
1016 | return err; | |
1017 | ||
1018 | devlink_port_notify(port, DEVLINK_CMD_PORT_NEW); | |
1019 | return 0; | |
1020 | } | |
1021 | ||
1022 | static int | |
1023 | devlink_port_function_set(struct devlink *devlink, struct devlink_port *port, | |
1024 | const struct nlattr *attr, struct netlink_ext_ack *extack) | |
1025 | { | |
1026 | struct nlattr *tb[DEVLINK_PORT_FUNCTION_ATTR_MAX + 1]; | |
1027 | int err; | |
1028 | ||
1029 | err = nla_parse_nested(tb, DEVLINK_PORT_FUNCTION_ATTR_MAX, attr, | |
1030 | devlink_function_nl_policy, extack); | |
1031 | if (err < 0) { | |
1032 | NL_SET_ERR_MSG_MOD(extack, "Fail to parse port function attributes"); | |
1033 | return err; | |
1034 | } | |
1035 | ||
1036 | attr = tb[DEVLINK_PORT_FUNCTION_ATTR_HW_ADDR]; | |
1037 | if (attr) | |
1038 | err = devlink_port_function_hw_addr_set(devlink, port, attr, extack); | |
1039 | ||
1040 | return err; | |
1041 | } | |
1042 | ||
bfcd3a46 JP |
1043 | static int devlink_nl_cmd_port_set_doit(struct sk_buff *skb, |
1044 | struct genl_info *info) | |
1045 | { | |
637989b5 | 1046 | struct devlink_port *devlink_port = info->user_ptr[1]; |
1fc2257e | 1047 | struct devlink *devlink = devlink_port->devlink; |
bfcd3a46 JP |
1048 | int err; |
1049 | ||
1050 | if (info->attrs[DEVLINK_ATTR_PORT_TYPE]) { | |
1051 | enum devlink_port_type port_type; | |
1052 | ||
1053 | port_type = nla_get_u16(info->attrs[DEVLINK_ATTR_PORT_TYPE]); | |
1054 | err = devlink_port_type_set(devlink, devlink_port, port_type); | |
1055 | if (err) | |
1056 | return err; | |
1057 | } | |
a1e8ae90 PP |
1058 | |
1059 | if (info->attrs[DEVLINK_ATTR_PORT_FUNCTION]) { | |
1060 | struct nlattr *attr = info->attrs[DEVLINK_ATTR_PORT_FUNCTION]; | |
1061 | struct netlink_ext_ack *extack = info->extack; | |
1062 | ||
1063 | err = devlink_port_function_set(devlink, devlink_port, attr, extack); | |
1064 | if (err) | |
1065 | return err; | |
1066 | } | |
1067 | ||
bfcd3a46 JP |
1068 | return 0; |
1069 | } | |
1070 | ||
ac0fc8a1 DA |
1071 | static int devlink_port_split(struct devlink *devlink, u32 port_index, |
1072 | u32 count, struct netlink_ext_ack *extack) | |
bfcd3a46 JP |
1073 | |
1074 | { | |
be6fe1d8 | 1075 | if (devlink->ops->port_split) |
ac0fc8a1 DA |
1076 | return devlink->ops->port_split(devlink, port_index, count, |
1077 | extack); | |
bfcd3a46 JP |
1078 | return -EOPNOTSUPP; |
1079 | } | |
1080 | ||
1081 | static int devlink_nl_cmd_port_split_doit(struct sk_buff *skb, | |
1082 | struct genl_info *info) | |
1083 | { | |
1084 | struct devlink *devlink = info->user_ptr[0]; | |
82901ad1 | 1085 | struct devlink_port *devlink_port; |
bfcd3a46 JP |
1086 | u32 port_index; |
1087 | u32 count; | |
1088 | ||
1089 | if (!info->attrs[DEVLINK_ATTR_PORT_INDEX] || | |
1090 | !info->attrs[DEVLINK_ATTR_PORT_SPLIT_COUNT]) | |
1091 | return -EINVAL; | |
1092 | ||
82901ad1 | 1093 | devlink_port = devlink_port_get_from_info(devlink, info); |
bfcd3a46 JP |
1094 | port_index = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_INDEX]); |
1095 | count = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_SPLIT_COUNT]); | |
82901ad1 DR |
1096 | |
1097 | if (IS_ERR(devlink_port)) | |
1098 | return -EINVAL; | |
1099 | ||
1100 | if (!devlink_port->attrs.splittable) { | |
1101 | /* Split ports cannot be split. */ | |
1102 | if (devlink_port->attrs.split) | |
1103 | NL_SET_ERR_MSG_MOD(info->extack, "Port cannot be split further"); | |
1104 | else | |
1105 | NL_SET_ERR_MSG_MOD(info->extack, "Port cannot be split"); | |
1106 | return -EINVAL; | |
1107 | } | |
1108 | ||
1109 | if (count < 2 || !is_power_of_2(count) || count > devlink_port->attrs.lanes) { | |
1110 | NL_SET_ERR_MSG_MOD(info->extack, "Invalid split count"); | |
1111 | return -EINVAL; | |
1112 | } | |
1113 | ||
ac0fc8a1 | 1114 | return devlink_port_split(devlink, port_index, count, info->extack); |
bfcd3a46 JP |
1115 | } |
1116 | ||
ac0fc8a1 DA |
1117 | static int devlink_port_unsplit(struct devlink *devlink, u32 port_index, |
1118 | struct netlink_ext_ack *extack) | |
bfcd3a46 JP |
1119 | |
1120 | { | |
be6fe1d8 | 1121 | if (devlink->ops->port_unsplit) |
ac0fc8a1 | 1122 | return devlink->ops->port_unsplit(devlink, port_index, extack); |
bfcd3a46 JP |
1123 | return -EOPNOTSUPP; |
1124 | } | |
1125 | ||
1126 | static int devlink_nl_cmd_port_unsplit_doit(struct sk_buff *skb, | |
1127 | struct genl_info *info) | |
1128 | { | |
1129 | struct devlink *devlink = info->user_ptr[0]; | |
1130 | u32 port_index; | |
1131 | ||
1132 | if (!info->attrs[DEVLINK_ATTR_PORT_INDEX]) | |
1133 | return -EINVAL; | |
1134 | ||
1135 | port_index = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_INDEX]); | |
ac0fc8a1 | 1136 | return devlink_port_unsplit(devlink, port_index, info->extack); |
bfcd3a46 JP |
1137 | } |
1138 | ||
bf797471 JP |
1139 | static int devlink_nl_sb_fill(struct sk_buff *msg, struct devlink *devlink, |
1140 | struct devlink_sb *devlink_sb, | |
1141 | enum devlink_command cmd, u32 portid, | |
1142 | u32 seq, int flags) | |
1143 | { | |
1144 | void *hdr; | |
1145 | ||
1146 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
1147 | if (!hdr) | |
1148 | return -EMSGSIZE; | |
1149 | ||
1150 | if (devlink_nl_put_handle(msg, devlink)) | |
1151 | goto nla_put_failure; | |
1152 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_INDEX, devlink_sb->index)) | |
1153 | goto nla_put_failure; | |
1154 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_SIZE, devlink_sb->size)) | |
1155 | goto nla_put_failure; | |
1156 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_INGRESS_POOL_COUNT, | |
1157 | devlink_sb->ingress_pools_count)) | |
1158 | goto nla_put_failure; | |
1159 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_EGRESS_POOL_COUNT, | |
1160 | devlink_sb->egress_pools_count)) | |
1161 | goto nla_put_failure; | |
1162 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_INGRESS_TC_COUNT, | |
1163 | devlink_sb->ingress_tc_count)) | |
1164 | goto nla_put_failure; | |
1165 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_EGRESS_TC_COUNT, | |
1166 | devlink_sb->egress_tc_count)) | |
1167 | goto nla_put_failure; | |
1168 | ||
1169 | genlmsg_end(msg, hdr); | |
1170 | return 0; | |
1171 | ||
1172 | nla_put_failure: | |
1173 | genlmsg_cancel(msg, hdr); | |
1174 | return -EMSGSIZE; | |
1175 | } | |
1176 | ||
1177 | static int devlink_nl_cmd_sb_get_doit(struct sk_buff *skb, | |
1178 | struct genl_info *info) | |
1179 | { | |
1180 | struct devlink *devlink = info->user_ptr[0]; | |
637989b5 | 1181 | struct devlink_sb *devlink_sb; |
bf797471 JP |
1182 | struct sk_buff *msg; |
1183 | int err; | |
1184 | ||
637989b5 PP |
1185 | devlink_sb = devlink_sb_get_from_info(devlink, info); |
1186 | if (IS_ERR(devlink_sb)) | |
1187 | return PTR_ERR(devlink_sb); | |
1188 | ||
bf797471 JP |
1189 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
1190 | if (!msg) | |
1191 | return -ENOMEM; | |
1192 | ||
1193 | err = devlink_nl_sb_fill(msg, devlink, devlink_sb, | |
1194 | DEVLINK_CMD_SB_NEW, | |
1195 | info->snd_portid, info->snd_seq, 0); | |
1196 | if (err) { | |
1197 | nlmsg_free(msg); | |
1198 | return err; | |
1199 | } | |
1200 | ||
1201 | return genlmsg_reply(msg, info); | |
1202 | } | |
1203 | ||
1204 | static int devlink_nl_cmd_sb_get_dumpit(struct sk_buff *msg, | |
1205 | struct netlink_callback *cb) | |
1206 | { | |
1207 | struct devlink *devlink; | |
1208 | struct devlink_sb *devlink_sb; | |
1209 | int start = cb->args[0]; | |
1210 | int idx = 0; | |
1211 | int err; | |
1212 | ||
1213 | mutex_lock(&devlink_mutex); | |
1214 | list_for_each_entry(devlink, &devlink_list, list) { | |
1215 | if (!net_eq(devlink_net(devlink), sock_net(msg->sk))) | |
1216 | continue; | |
2406e7e5 | 1217 | mutex_lock(&devlink->lock); |
bf797471 JP |
1218 | list_for_each_entry(devlink_sb, &devlink->sb_list, list) { |
1219 | if (idx < start) { | |
1220 | idx++; | |
1221 | continue; | |
1222 | } | |
1223 | err = devlink_nl_sb_fill(msg, devlink, devlink_sb, | |
1224 | DEVLINK_CMD_SB_NEW, | |
1225 | NETLINK_CB(cb->skb).portid, | |
1226 | cb->nlh->nlmsg_seq, | |
1227 | NLM_F_MULTI); | |
2406e7e5 AS |
1228 | if (err) { |
1229 | mutex_unlock(&devlink->lock); | |
bf797471 | 1230 | goto out; |
2406e7e5 | 1231 | } |
bf797471 JP |
1232 | idx++; |
1233 | } | |
2406e7e5 | 1234 | mutex_unlock(&devlink->lock); |
bf797471 JP |
1235 | } |
1236 | out: | |
1237 | mutex_unlock(&devlink_mutex); | |
1238 | ||
1239 | cb->args[0] = idx; | |
1240 | return msg->len; | |
1241 | } | |
1242 | ||
1243 | static int devlink_nl_sb_pool_fill(struct sk_buff *msg, struct devlink *devlink, | |
1244 | struct devlink_sb *devlink_sb, | |
1245 | u16 pool_index, enum devlink_command cmd, | |
1246 | u32 portid, u32 seq, int flags) | |
1247 | { | |
1248 | struct devlink_sb_pool_info pool_info; | |
1249 | void *hdr; | |
1250 | int err; | |
1251 | ||
1252 | err = devlink->ops->sb_pool_get(devlink, devlink_sb->index, | |
1253 | pool_index, &pool_info); | |
1254 | if (err) | |
1255 | return err; | |
1256 | ||
1257 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
1258 | if (!hdr) | |
1259 | return -EMSGSIZE; | |
1260 | ||
1261 | if (devlink_nl_put_handle(msg, devlink)) | |
1262 | goto nla_put_failure; | |
1263 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_INDEX, devlink_sb->index)) | |
1264 | goto nla_put_failure; | |
1265 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_POOL_INDEX, pool_index)) | |
1266 | goto nla_put_failure; | |
1267 | if (nla_put_u8(msg, DEVLINK_ATTR_SB_POOL_TYPE, pool_info.pool_type)) | |
1268 | goto nla_put_failure; | |
1269 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_POOL_SIZE, pool_info.size)) | |
1270 | goto nla_put_failure; | |
1271 | if (nla_put_u8(msg, DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE, | |
1272 | pool_info.threshold_type)) | |
1273 | goto nla_put_failure; | |
bff5731d JK |
1274 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_POOL_CELL_SIZE, |
1275 | pool_info.cell_size)) | |
1276 | goto nla_put_failure; | |
bf797471 JP |
1277 | |
1278 | genlmsg_end(msg, hdr); | |
1279 | return 0; | |
1280 | ||
1281 | nla_put_failure: | |
1282 | genlmsg_cancel(msg, hdr); | |
1283 | return -EMSGSIZE; | |
1284 | } | |
1285 | ||
1286 | static int devlink_nl_cmd_sb_pool_get_doit(struct sk_buff *skb, | |
1287 | struct genl_info *info) | |
1288 | { | |
1289 | struct devlink *devlink = info->user_ptr[0]; | |
637989b5 | 1290 | struct devlink_sb *devlink_sb; |
bf797471 JP |
1291 | struct sk_buff *msg; |
1292 | u16 pool_index; | |
1293 | int err; | |
1294 | ||
637989b5 PP |
1295 | devlink_sb = devlink_sb_get_from_info(devlink, info); |
1296 | if (IS_ERR(devlink_sb)) | |
1297 | return PTR_ERR(devlink_sb); | |
1298 | ||
bf797471 JP |
1299 | err = devlink_sb_pool_index_get_from_info(devlink_sb, info, |
1300 | &pool_index); | |
1301 | if (err) | |
1302 | return err; | |
1303 | ||
be6fe1d8 | 1304 | if (!devlink->ops->sb_pool_get) |
bf797471 JP |
1305 | return -EOPNOTSUPP; |
1306 | ||
1307 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
1308 | if (!msg) | |
1309 | return -ENOMEM; | |
1310 | ||
1311 | err = devlink_nl_sb_pool_fill(msg, devlink, devlink_sb, pool_index, | |
1312 | DEVLINK_CMD_SB_POOL_NEW, | |
1313 | info->snd_portid, info->snd_seq, 0); | |
1314 | if (err) { | |
1315 | nlmsg_free(msg); | |
1316 | return err; | |
1317 | } | |
1318 | ||
1319 | return genlmsg_reply(msg, info); | |
1320 | } | |
1321 | ||
1322 | static int __sb_pool_get_dumpit(struct sk_buff *msg, int start, int *p_idx, | |
1323 | struct devlink *devlink, | |
1324 | struct devlink_sb *devlink_sb, | |
1325 | u32 portid, u32 seq) | |
1326 | { | |
1327 | u16 pool_count = devlink_sb_pool_count(devlink_sb); | |
1328 | u16 pool_index; | |
1329 | int err; | |
1330 | ||
1331 | for (pool_index = 0; pool_index < pool_count; pool_index++) { | |
1332 | if (*p_idx < start) { | |
1333 | (*p_idx)++; | |
1334 | continue; | |
1335 | } | |
1336 | err = devlink_nl_sb_pool_fill(msg, devlink, | |
1337 | devlink_sb, | |
1338 | pool_index, | |
1339 | DEVLINK_CMD_SB_POOL_NEW, | |
1340 | portid, seq, NLM_F_MULTI); | |
1341 | if (err) | |
1342 | return err; | |
1343 | (*p_idx)++; | |
1344 | } | |
1345 | return 0; | |
1346 | } | |
1347 | ||
1348 | static int devlink_nl_cmd_sb_pool_get_dumpit(struct sk_buff *msg, | |
1349 | struct netlink_callback *cb) | |
1350 | { | |
1351 | struct devlink *devlink; | |
1352 | struct devlink_sb *devlink_sb; | |
1353 | int start = cb->args[0]; | |
1354 | int idx = 0; | |
c62c2cfb | 1355 | int err = 0; |
bf797471 JP |
1356 | |
1357 | mutex_lock(&devlink_mutex); | |
1358 | list_for_each_entry(devlink, &devlink_list, list) { | |
1359 | if (!net_eq(devlink_net(devlink), sock_net(msg->sk)) || | |
be6fe1d8 | 1360 | !devlink->ops->sb_pool_get) |
bf797471 | 1361 | continue; |
2406e7e5 | 1362 | mutex_lock(&devlink->lock); |
bf797471 JP |
1363 | list_for_each_entry(devlink_sb, &devlink->sb_list, list) { |
1364 | err = __sb_pool_get_dumpit(msg, start, &idx, devlink, | |
1365 | devlink_sb, | |
1366 | NETLINK_CB(cb->skb).portid, | |
1367 | cb->nlh->nlmsg_seq); | |
82274d07 JK |
1368 | if (err == -EOPNOTSUPP) { |
1369 | err = 0; | |
1370 | } else if (err) { | |
2406e7e5 | 1371 | mutex_unlock(&devlink->lock); |
bf797471 | 1372 | goto out; |
2406e7e5 | 1373 | } |
bf797471 | 1374 | } |
2406e7e5 | 1375 | mutex_unlock(&devlink->lock); |
bf797471 JP |
1376 | } |
1377 | out: | |
1378 | mutex_unlock(&devlink_mutex); | |
1379 | ||
c62c2cfb JP |
1380 | if (err != -EMSGSIZE) |
1381 | return err; | |
1382 | ||
bf797471 JP |
1383 | cb->args[0] = idx; |
1384 | return msg->len; | |
1385 | } | |
1386 | ||
1387 | static int devlink_sb_pool_set(struct devlink *devlink, unsigned int sb_index, | |
1388 | u16 pool_index, u32 size, | |
f2ad1a52 IS |
1389 | enum devlink_sb_threshold_type threshold_type, |
1390 | struct netlink_ext_ack *extack) | |
bf797471 JP |
1391 | |
1392 | { | |
1393 | const struct devlink_ops *ops = devlink->ops; | |
1394 | ||
be6fe1d8 | 1395 | if (ops->sb_pool_set) |
bf797471 | 1396 | return ops->sb_pool_set(devlink, sb_index, pool_index, |
f2ad1a52 | 1397 | size, threshold_type, extack); |
bf797471 JP |
1398 | return -EOPNOTSUPP; |
1399 | } | |
1400 | ||
1401 | static int devlink_nl_cmd_sb_pool_set_doit(struct sk_buff *skb, | |
1402 | struct genl_info *info) | |
1403 | { | |
1404 | struct devlink *devlink = info->user_ptr[0]; | |
bf797471 | 1405 | enum devlink_sb_threshold_type threshold_type; |
637989b5 | 1406 | struct devlink_sb *devlink_sb; |
bf797471 JP |
1407 | u16 pool_index; |
1408 | u32 size; | |
1409 | int err; | |
1410 | ||
637989b5 PP |
1411 | devlink_sb = devlink_sb_get_from_info(devlink, info); |
1412 | if (IS_ERR(devlink_sb)) | |
1413 | return PTR_ERR(devlink_sb); | |
1414 | ||
bf797471 JP |
1415 | err = devlink_sb_pool_index_get_from_info(devlink_sb, info, |
1416 | &pool_index); | |
1417 | if (err) | |
1418 | return err; | |
1419 | ||
1420 | err = devlink_sb_th_type_get_from_info(info, &threshold_type); | |
1421 | if (err) | |
1422 | return err; | |
1423 | ||
1424 | if (!info->attrs[DEVLINK_ATTR_SB_POOL_SIZE]) | |
1425 | return -EINVAL; | |
1426 | ||
1427 | size = nla_get_u32(info->attrs[DEVLINK_ATTR_SB_POOL_SIZE]); | |
1428 | return devlink_sb_pool_set(devlink, devlink_sb->index, | |
f2ad1a52 IS |
1429 | pool_index, size, threshold_type, |
1430 | info->extack); | |
bf797471 JP |
1431 | } |
1432 | ||
1433 | static int devlink_nl_sb_port_pool_fill(struct sk_buff *msg, | |
1434 | struct devlink *devlink, | |
1435 | struct devlink_port *devlink_port, | |
1436 | struct devlink_sb *devlink_sb, | |
1437 | u16 pool_index, | |
1438 | enum devlink_command cmd, | |
1439 | u32 portid, u32 seq, int flags) | |
1440 | { | |
df38dafd | 1441 | const struct devlink_ops *ops = devlink->ops; |
bf797471 JP |
1442 | u32 threshold; |
1443 | void *hdr; | |
1444 | int err; | |
1445 | ||
df38dafd JP |
1446 | err = ops->sb_port_pool_get(devlink_port, devlink_sb->index, |
1447 | pool_index, &threshold); | |
bf797471 JP |
1448 | if (err) |
1449 | return err; | |
1450 | ||
1451 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
1452 | if (!hdr) | |
1453 | return -EMSGSIZE; | |
1454 | ||
1455 | if (devlink_nl_put_handle(msg, devlink)) | |
1456 | goto nla_put_failure; | |
1457 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, devlink_port->index)) | |
1458 | goto nla_put_failure; | |
1459 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_INDEX, devlink_sb->index)) | |
1460 | goto nla_put_failure; | |
1461 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_POOL_INDEX, pool_index)) | |
1462 | goto nla_put_failure; | |
1463 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_THRESHOLD, threshold)) | |
1464 | goto nla_put_failure; | |
1465 | ||
df38dafd JP |
1466 | if (ops->sb_occ_port_pool_get) { |
1467 | u32 cur; | |
1468 | u32 max; | |
1469 | ||
1470 | err = ops->sb_occ_port_pool_get(devlink_port, devlink_sb->index, | |
1471 | pool_index, &cur, &max); | |
1472 | if (err && err != -EOPNOTSUPP) | |
849920c7 | 1473 | goto sb_occ_get_failure; |
df38dafd JP |
1474 | if (!err) { |
1475 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_OCC_CUR, cur)) | |
1476 | goto nla_put_failure; | |
1477 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_OCC_MAX, max)) | |
1478 | goto nla_put_failure; | |
1479 | } | |
1480 | } | |
1481 | ||
bf797471 JP |
1482 | genlmsg_end(msg, hdr); |
1483 | return 0; | |
1484 | ||
1485 | nla_put_failure: | |
849920c7 WH |
1486 | err = -EMSGSIZE; |
1487 | sb_occ_get_failure: | |
bf797471 | 1488 | genlmsg_cancel(msg, hdr); |
849920c7 | 1489 | return err; |
bf797471 JP |
1490 | } |
1491 | ||
1492 | static int devlink_nl_cmd_sb_port_pool_get_doit(struct sk_buff *skb, | |
1493 | struct genl_info *info) | |
1494 | { | |
637989b5 | 1495 | struct devlink_port *devlink_port = info->user_ptr[1]; |
bf797471 | 1496 | struct devlink *devlink = devlink_port->devlink; |
637989b5 | 1497 | struct devlink_sb *devlink_sb; |
bf797471 JP |
1498 | struct sk_buff *msg; |
1499 | u16 pool_index; | |
1500 | int err; | |
1501 | ||
637989b5 PP |
1502 | devlink_sb = devlink_sb_get_from_info(devlink, info); |
1503 | if (IS_ERR(devlink_sb)) | |
1504 | return PTR_ERR(devlink_sb); | |
1505 | ||
bf797471 JP |
1506 | err = devlink_sb_pool_index_get_from_info(devlink_sb, info, |
1507 | &pool_index); | |
1508 | if (err) | |
1509 | return err; | |
1510 | ||
be6fe1d8 | 1511 | if (!devlink->ops->sb_port_pool_get) |
bf797471 JP |
1512 | return -EOPNOTSUPP; |
1513 | ||
1514 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
1515 | if (!msg) | |
1516 | return -ENOMEM; | |
1517 | ||
1518 | err = devlink_nl_sb_port_pool_fill(msg, devlink, devlink_port, | |
1519 | devlink_sb, pool_index, | |
1520 | DEVLINK_CMD_SB_PORT_POOL_NEW, | |
1521 | info->snd_portid, info->snd_seq, 0); | |
1522 | if (err) { | |
1523 | nlmsg_free(msg); | |
1524 | return err; | |
1525 | } | |
1526 | ||
1527 | return genlmsg_reply(msg, info); | |
1528 | } | |
1529 | ||
1530 | static int __sb_port_pool_get_dumpit(struct sk_buff *msg, int start, int *p_idx, | |
1531 | struct devlink *devlink, | |
1532 | struct devlink_sb *devlink_sb, | |
1533 | u32 portid, u32 seq) | |
1534 | { | |
1535 | struct devlink_port *devlink_port; | |
1536 | u16 pool_count = devlink_sb_pool_count(devlink_sb); | |
1537 | u16 pool_index; | |
1538 | int err; | |
1539 | ||
1540 | list_for_each_entry(devlink_port, &devlink->port_list, list) { | |
1541 | for (pool_index = 0; pool_index < pool_count; pool_index++) { | |
1542 | if (*p_idx < start) { | |
1543 | (*p_idx)++; | |
1544 | continue; | |
1545 | } | |
1546 | err = devlink_nl_sb_port_pool_fill(msg, devlink, | |
1547 | devlink_port, | |
1548 | devlink_sb, | |
1549 | pool_index, | |
1550 | DEVLINK_CMD_SB_PORT_POOL_NEW, | |
1551 | portid, seq, | |
1552 | NLM_F_MULTI); | |
1553 | if (err) | |
1554 | return err; | |
1555 | (*p_idx)++; | |
1556 | } | |
1557 | } | |
1558 | return 0; | |
1559 | } | |
1560 | ||
1561 | static int devlink_nl_cmd_sb_port_pool_get_dumpit(struct sk_buff *msg, | |
1562 | struct netlink_callback *cb) | |
1563 | { | |
1564 | struct devlink *devlink; | |
1565 | struct devlink_sb *devlink_sb; | |
1566 | int start = cb->args[0]; | |
1567 | int idx = 0; | |
c62c2cfb | 1568 | int err = 0; |
bf797471 JP |
1569 | |
1570 | mutex_lock(&devlink_mutex); | |
bf797471 JP |
1571 | list_for_each_entry(devlink, &devlink_list, list) { |
1572 | if (!net_eq(devlink_net(devlink), sock_net(msg->sk)) || | |
be6fe1d8 | 1573 | !devlink->ops->sb_port_pool_get) |
bf797471 | 1574 | continue; |
2406e7e5 | 1575 | mutex_lock(&devlink->lock); |
bf797471 JP |
1576 | list_for_each_entry(devlink_sb, &devlink->sb_list, list) { |
1577 | err = __sb_port_pool_get_dumpit(msg, start, &idx, | |
1578 | devlink, devlink_sb, | |
1579 | NETLINK_CB(cb->skb).portid, | |
1580 | cb->nlh->nlmsg_seq); | |
82274d07 JK |
1581 | if (err == -EOPNOTSUPP) { |
1582 | err = 0; | |
1583 | } else if (err) { | |
2406e7e5 | 1584 | mutex_unlock(&devlink->lock); |
bf797471 | 1585 | goto out; |
2406e7e5 | 1586 | } |
bf797471 | 1587 | } |
2406e7e5 | 1588 | mutex_unlock(&devlink->lock); |
bf797471 JP |
1589 | } |
1590 | out: | |
bf797471 JP |
1591 | mutex_unlock(&devlink_mutex); |
1592 | ||
c62c2cfb JP |
1593 | if (err != -EMSGSIZE) |
1594 | return err; | |
1595 | ||
bf797471 JP |
1596 | cb->args[0] = idx; |
1597 | return msg->len; | |
1598 | } | |
1599 | ||
1600 | static int devlink_sb_port_pool_set(struct devlink_port *devlink_port, | |
1601 | unsigned int sb_index, u16 pool_index, | |
f2ad1a52 IS |
1602 | u32 threshold, |
1603 | struct netlink_ext_ack *extack) | |
bf797471 JP |
1604 | |
1605 | { | |
1606 | const struct devlink_ops *ops = devlink_port->devlink->ops; | |
1607 | ||
be6fe1d8 | 1608 | if (ops->sb_port_pool_set) |
bf797471 | 1609 | return ops->sb_port_pool_set(devlink_port, sb_index, |
f2ad1a52 | 1610 | pool_index, threshold, extack); |
bf797471 JP |
1611 | return -EOPNOTSUPP; |
1612 | } | |
1613 | ||
1614 | static int devlink_nl_cmd_sb_port_pool_set_doit(struct sk_buff *skb, | |
1615 | struct genl_info *info) | |
1616 | { | |
637989b5 PP |
1617 | struct devlink_port *devlink_port = info->user_ptr[1]; |
1618 | struct devlink *devlink = info->user_ptr[0]; | |
1619 | struct devlink_sb *devlink_sb; | |
bf797471 JP |
1620 | u16 pool_index; |
1621 | u32 threshold; | |
1622 | int err; | |
1623 | ||
637989b5 PP |
1624 | devlink_sb = devlink_sb_get_from_info(devlink, info); |
1625 | if (IS_ERR(devlink_sb)) | |
1626 | return PTR_ERR(devlink_sb); | |
1627 | ||
bf797471 JP |
1628 | err = devlink_sb_pool_index_get_from_info(devlink_sb, info, |
1629 | &pool_index); | |
1630 | if (err) | |
1631 | return err; | |
1632 | ||
1633 | if (!info->attrs[DEVLINK_ATTR_SB_THRESHOLD]) | |
1634 | return -EINVAL; | |
1635 | ||
1636 | threshold = nla_get_u32(info->attrs[DEVLINK_ATTR_SB_THRESHOLD]); | |
1637 | return devlink_sb_port_pool_set(devlink_port, devlink_sb->index, | |
f2ad1a52 | 1638 | pool_index, threshold, info->extack); |
bf797471 JP |
1639 | } |
1640 | ||
1641 | static int | |
1642 | devlink_nl_sb_tc_pool_bind_fill(struct sk_buff *msg, struct devlink *devlink, | |
1643 | struct devlink_port *devlink_port, | |
1644 | struct devlink_sb *devlink_sb, u16 tc_index, | |
1645 | enum devlink_sb_pool_type pool_type, | |
1646 | enum devlink_command cmd, | |
1647 | u32 portid, u32 seq, int flags) | |
1648 | { | |
df38dafd | 1649 | const struct devlink_ops *ops = devlink->ops; |
bf797471 JP |
1650 | u16 pool_index; |
1651 | u32 threshold; | |
1652 | void *hdr; | |
1653 | int err; | |
1654 | ||
df38dafd JP |
1655 | err = ops->sb_tc_pool_bind_get(devlink_port, devlink_sb->index, |
1656 | tc_index, pool_type, | |
1657 | &pool_index, &threshold); | |
bf797471 JP |
1658 | if (err) |
1659 | return err; | |
1660 | ||
1661 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
1662 | if (!hdr) | |
1663 | return -EMSGSIZE; | |
1664 | ||
1665 | if (devlink_nl_put_handle(msg, devlink)) | |
1666 | goto nla_put_failure; | |
1667 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, devlink_port->index)) | |
1668 | goto nla_put_failure; | |
1669 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_INDEX, devlink_sb->index)) | |
1670 | goto nla_put_failure; | |
1671 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_TC_INDEX, tc_index)) | |
1672 | goto nla_put_failure; | |
1673 | if (nla_put_u8(msg, DEVLINK_ATTR_SB_POOL_TYPE, pool_type)) | |
1674 | goto nla_put_failure; | |
1675 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_POOL_INDEX, pool_index)) | |
1676 | goto nla_put_failure; | |
1677 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_THRESHOLD, threshold)) | |
1678 | goto nla_put_failure; | |
1679 | ||
df38dafd JP |
1680 | if (ops->sb_occ_tc_port_bind_get) { |
1681 | u32 cur; | |
1682 | u32 max; | |
1683 | ||
1684 | err = ops->sb_occ_tc_port_bind_get(devlink_port, | |
1685 | devlink_sb->index, | |
1686 | tc_index, pool_type, | |
1687 | &cur, &max); | |
1688 | if (err && err != -EOPNOTSUPP) | |
1689 | return err; | |
1690 | if (!err) { | |
1691 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_OCC_CUR, cur)) | |
1692 | goto nla_put_failure; | |
1693 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_OCC_MAX, max)) | |
1694 | goto nla_put_failure; | |
1695 | } | |
1696 | } | |
1697 | ||
bf797471 JP |
1698 | genlmsg_end(msg, hdr); |
1699 | return 0; | |
1700 | ||
1701 | nla_put_failure: | |
1702 | genlmsg_cancel(msg, hdr); | |
1703 | return -EMSGSIZE; | |
1704 | } | |
1705 | ||
1706 | static int devlink_nl_cmd_sb_tc_pool_bind_get_doit(struct sk_buff *skb, | |
1707 | struct genl_info *info) | |
1708 | { | |
637989b5 | 1709 | struct devlink_port *devlink_port = info->user_ptr[1]; |
bf797471 | 1710 | struct devlink *devlink = devlink_port->devlink; |
637989b5 | 1711 | struct devlink_sb *devlink_sb; |
bf797471 JP |
1712 | struct sk_buff *msg; |
1713 | enum devlink_sb_pool_type pool_type; | |
1714 | u16 tc_index; | |
1715 | int err; | |
1716 | ||
637989b5 PP |
1717 | devlink_sb = devlink_sb_get_from_info(devlink, info); |
1718 | if (IS_ERR(devlink_sb)) | |
1719 | return PTR_ERR(devlink_sb); | |
1720 | ||
bf797471 JP |
1721 | err = devlink_sb_pool_type_get_from_info(info, &pool_type); |
1722 | if (err) | |
1723 | return err; | |
1724 | ||
1725 | err = devlink_sb_tc_index_get_from_info(devlink_sb, info, | |
1726 | pool_type, &tc_index); | |
1727 | if (err) | |
1728 | return err; | |
1729 | ||
be6fe1d8 | 1730 | if (!devlink->ops->sb_tc_pool_bind_get) |
bf797471 JP |
1731 | return -EOPNOTSUPP; |
1732 | ||
1733 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
1734 | if (!msg) | |
1735 | return -ENOMEM; | |
1736 | ||
1737 | err = devlink_nl_sb_tc_pool_bind_fill(msg, devlink, devlink_port, | |
1738 | devlink_sb, tc_index, pool_type, | |
1739 | DEVLINK_CMD_SB_TC_POOL_BIND_NEW, | |
1740 | info->snd_portid, | |
1741 | info->snd_seq, 0); | |
1742 | if (err) { | |
1743 | nlmsg_free(msg); | |
1744 | return err; | |
1745 | } | |
1746 | ||
1747 | return genlmsg_reply(msg, info); | |
1748 | } | |
1749 | ||
1750 | static int __sb_tc_pool_bind_get_dumpit(struct sk_buff *msg, | |
1751 | int start, int *p_idx, | |
1752 | struct devlink *devlink, | |
1753 | struct devlink_sb *devlink_sb, | |
1754 | u32 portid, u32 seq) | |
1755 | { | |
1756 | struct devlink_port *devlink_port; | |
1757 | u16 tc_index; | |
1758 | int err; | |
1759 | ||
1760 | list_for_each_entry(devlink_port, &devlink->port_list, list) { | |
1761 | for (tc_index = 0; | |
1762 | tc_index < devlink_sb->ingress_tc_count; tc_index++) { | |
1763 | if (*p_idx < start) { | |
1764 | (*p_idx)++; | |
1765 | continue; | |
1766 | } | |
1767 | err = devlink_nl_sb_tc_pool_bind_fill(msg, devlink, | |
1768 | devlink_port, | |
1769 | devlink_sb, | |
1770 | tc_index, | |
1771 | DEVLINK_SB_POOL_TYPE_INGRESS, | |
1772 | DEVLINK_CMD_SB_TC_POOL_BIND_NEW, | |
1773 | portid, seq, | |
1774 | NLM_F_MULTI); | |
1775 | if (err) | |
1776 | return err; | |
1777 | (*p_idx)++; | |
1778 | } | |
1779 | for (tc_index = 0; | |
1780 | tc_index < devlink_sb->egress_tc_count; tc_index++) { | |
1781 | if (*p_idx < start) { | |
1782 | (*p_idx)++; | |
1783 | continue; | |
1784 | } | |
1785 | err = devlink_nl_sb_tc_pool_bind_fill(msg, devlink, | |
1786 | devlink_port, | |
1787 | devlink_sb, | |
1788 | tc_index, | |
1789 | DEVLINK_SB_POOL_TYPE_EGRESS, | |
1790 | DEVLINK_CMD_SB_TC_POOL_BIND_NEW, | |
1791 | portid, seq, | |
1792 | NLM_F_MULTI); | |
1793 | if (err) | |
1794 | return err; | |
1795 | (*p_idx)++; | |
1796 | } | |
1797 | } | |
1798 | return 0; | |
1799 | } | |
1800 | ||
1801 | static int | |
1802 | devlink_nl_cmd_sb_tc_pool_bind_get_dumpit(struct sk_buff *msg, | |
1803 | struct netlink_callback *cb) | |
1804 | { | |
1805 | struct devlink *devlink; | |
1806 | struct devlink_sb *devlink_sb; | |
1807 | int start = cb->args[0]; | |
1808 | int idx = 0; | |
c62c2cfb | 1809 | int err = 0; |
bf797471 JP |
1810 | |
1811 | mutex_lock(&devlink_mutex); | |
bf797471 JP |
1812 | list_for_each_entry(devlink, &devlink_list, list) { |
1813 | if (!net_eq(devlink_net(devlink), sock_net(msg->sk)) || | |
be6fe1d8 | 1814 | !devlink->ops->sb_tc_pool_bind_get) |
bf797471 | 1815 | continue; |
2406e7e5 AS |
1816 | |
1817 | mutex_lock(&devlink->lock); | |
bf797471 JP |
1818 | list_for_each_entry(devlink_sb, &devlink->sb_list, list) { |
1819 | err = __sb_tc_pool_bind_get_dumpit(msg, start, &idx, | |
1820 | devlink, | |
1821 | devlink_sb, | |
1822 | NETLINK_CB(cb->skb).portid, | |
1823 | cb->nlh->nlmsg_seq); | |
82274d07 JK |
1824 | if (err == -EOPNOTSUPP) { |
1825 | err = 0; | |
1826 | } else if (err) { | |
2406e7e5 | 1827 | mutex_unlock(&devlink->lock); |
bf797471 | 1828 | goto out; |
2406e7e5 | 1829 | } |
bf797471 | 1830 | } |
2406e7e5 | 1831 | mutex_unlock(&devlink->lock); |
bf797471 JP |
1832 | } |
1833 | out: | |
bf797471 JP |
1834 | mutex_unlock(&devlink_mutex); |
1835 | ||
c62c2cfb JP |
1836 | if (err != -EMSGSIZE) |
1837 | return err; | |
1838 | ||
bf797471 JP |
1839 | cb->args[0] = idx; |
1840 | return msg->len; | |
1841 | } | |
1842 | ||
1843 | static int devlink_sb_tc_pool_bind_set(struct devlink_port *devlink_port, | |
1844 | unsigned int sb_index, u16 tc_index, | |
1845 | enum devlink_sb_pool_type pool_type, | |
f2ad1a52 IS |
1846 | u16 pool_index, u32 threshold, |
1847 | struct netlink_ext_ack *extack) | |
bf797471 JP |
1848 | |
1849 | { | |
1850 | const struct devlink_ops *ops = devlink_port->devlink->ops; | |
1851 | ||
be6fe1d8 | 1852 | if (ops->sb_tc_pool_bind_set) |
bf797471 JP |
1853 | return ops->sb_tc_pool_bind_set(devlink_port, sb_index, |
1854 | tc_index, pool_type, | |
f2ad1a52 | 1855 | pool_index, threshold, extack); |
bf797471 JP |
1856 | return -EOPNOTSUPP; |
1857 | } | |
1858 | ||
1859 | static int devlink_nl_cmd_sb_tc_pool_bind_set_doit(struct sk_buff *skb, | |
1860 | struct genl_info *info) | |
1861 | { | |
637989b5 PP |
1862 | struct devlink_port *devlink_port = info->user_ptr[1]; |
1863 | struct devlink *devlink = info->user_ptr[0]; | |
bf797471 | 1864 | enum devlink_sb_pool_type pool_type; |
637989b5 | 1865 | struct devlink_sb *devlink_sb; |
bf797471 JP |
1866 | u16 tc_index; |
1867 | u16 pool_index; | |
1868 | u32 threshold; | |
1869 | int err; | |
1870 | ||
637989b5 PP |
1871 | devlink_sb = devlink_sb_get_from_info(devlink, info); |
1872 | if (IS_ERR(devlink_sb)) | |
1873 | return PTR_ERR(devlink_sb); | |
1874 | ||
bf797471 JP |
1875 | err = devlink_sb_pool_type_get_from_info(info, &pool_type); |
1876 | if (err) | |
1877 | return err; | |
1878 | ||
1879 | err = devlink_sb_tc_index_get_from_info(devlink_sb, info, | |
1880 | pool_type, &tc_index); | |
1881 | if (err) | |
1882 | return err; | |
1883 | ||
1884 | err = devlink_sb_pool_index_get_from_info(devlink_sb, info, | |
1885 | &pool_index); | |
1886 | if (err) | |
1887 | return err; | |
1888 | ||
1889 | if (!info->attrs[DEVLINK_ATTR_SB_THRESHOLD]) | |
1890 | return -EINVAL; | |
1891 | ||
1892 | threshold = nla_get_u32(info->attrs[DEVLINK_ATTR_SB_THRESHOLD]); | |
1893 | return devlink_sb_tc_pool_bind_set(devlink_port, devlink_sb->index, | |
1894 | tc_index, pool_type, | |
f2ad1a52 | 1895 | pool_index, threshold, info->extack); |
bf797471 JP |
1896 | } |
1897 | ||
df38dafd JP |
1898 | static int devlink_nl_cmd_sb_occ_snapshot_doit(struct sk_buff *skb, |
1899 | struct genl_info *info) | |
1900 | { | |
1901 | struct devlink *devlink = info->user_ptr[0]; | |
df38dafd | 1902 | const struct devlink_ops *ops = devlink->ops; |
637989b5 PP |
1903 | struct devlink_sb *devlink_sb; |
1904 | ||
1905 | devlink_sb = devlink_sb_get_from_info(devlink, info); | |
1906 | if (IS_ERR(devlink_sb)) | |
1907 | return PTR_ERR(devlink_sb); | |
df38dafd | 1908 | |
be6fe1d8 | 1909 | if (ops->sb_occ_snapshot) |
df38dafd JP |
1910 | return ops->sb_occ_snapshot(devlink, devlink_sb->index); |
1911 | return -EOPNOTSUPP; | |
1912 | } | |
1913 | ||
1914 | static int devlink_nl_cmd_sb_occ_max_clear_doit(struct sk_buff *skb, | |
1915 | struct genl_info *info) | |
1916 | { | |
1917 | struct devlink *devlink = info->user_ptr[0]; | |
df38dafd | 1918 | const struct devlink_ops *ops = devlink->ops; |
637989b5 PP |
1919 | struct devlink_sb *devlink_sb; |
1920 | ||
1921 | devlink_sb = devlink_sb_get_from_info(devlink, info); | |
1922 | if (IS_ERR(devlink_sb)) | |
1923 | return PTR_ERR(devlink_sb); | |
df38dafd | 1924 | |
be6fe1d8 | 1925 | if (ops->sb_occ_max_clear) |
df38dafd JP |
1926 | return ops->sb_occ_max_clear(devlink, devlink_sb->index); |
1927 | return -EOPNOTSUPP; | |
1928 | } | |
1929 | ||
21e3d2dd JP |
1930 | static int devlink_nl_eswitch_fill(struct sk_buff *msg, struct devlink *devlink, |
1931 | enum devlink_command cmd, u32 portid, | |
1932 | u32 seq, int flags) | |
08f4b591 | 1933 | { |
59bfde01 | 1934 | const struct devlink_ops *ops = devlink->ops; |
98fdbea5 LR |
1935 | enum devlink_eswitch_encap_mode encap_mode; |
1936 | u8 inline_mode; | |
08f4b591 | 1937 | void *hdr; |
59bfde01 RD |
1938 | int err = 0; |
1939 | u16 mode; | |
08f4b591 OG |
1940 | |
1941 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
1942 | if (!hdr) | |
1943 | return -EMSGSIZE; | |
1944 | ||
59bfde01 RD |
1945 | err = devlink_nl_put_handle(msg, devlink); |
1946 | if (err) | |
1a6aa36b | 1947 | goto nla_put_failure; |
08f4b591 | 1948 | |
4456f61c JP |
1949 | if (ops->eswitch_mode_get) { |
1950 | err = ops->eswitch_mode_get(devlink, &mode); | |
1951 | if (err) | |
1952 | goto nla_put_failure; | |
1953 | err = nla_put_u16(msg, DEVLINK_ATTR_ESWITCH_MODE, mode); | |
1954 | if (err) | |
1955 | goto nla_put_failure; | |
1956 | } | |
59bfde01 RD |
1957 | |
1958 | if (ops->eswitch_inline_mode_get) { | |
1959 | err = ops->eswitch_inline_mode_get(devlink, &inline_mode); | |
1960 | if (err) | |
1a6aa36b | 1961 | goto nla_put_failure; |
59bfde01 RD |
1962 | err = nla_put_u8(msg, DEVLINK_ATTR_ESWITCH_INLINE_MODE, |
1963 | inline_mode); | |
1964 | if (err) | |
1a6aa36b | 1965 | goto nla_put_failure; |
59bfde01 | 1966 | } |
08f4b591 | 1967 | |
f43e9b06 RD |
1968 | if (ops->eswitch_encap_mode_get) { |
1969 | err = ops->eswitch_encap_mode_get(devlink, &encap_mode); | |
1970 | if (err) | |
1971 | goto nla_put_failure; | |
1972 | err = nla_put_u8(msg, DEVLINK_ATTR_ESWITCH_ENCAP_MODE, encap_mode); | |
1973 | if (err) | |
1974 | goto nla_put_failure; | |
1975 | } | |
1976 | ||
08f4b591 OG |
1977 | genlmsg_end(msg, hdr); |
1978 | return 0; | |
1979 | ||
1a6aa36b | 1980 | nla_put_failure: |
08f4b591 | 1981 | genlmsg_cancel(msg, hdr); |
59bfde01 | 1982 | return err; |
08f4b591 OG |
1983 | } |
1984 | ||
adf200f3 JP |
1985 | static int devlink_nl_cmd_eswitch_get_doit(struct sk_buff *skb, |
1986 | struct genl_info *info) | |
08f4b591 OG |
1987 | { |
1988 | struct devlink *devlink = info->user_ptr[0]; | |
08f4b591 | 1989 | struct sk_buff *msg; |
08f4b591 OG |
1990 | int err; |
1991 | ||
08f4b591 OG |
1992 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
1993 | if (!msg) | |
1994 | return -ENOMEM; | |
1995 | ||
21e3d2dd JP |
1996 | err = devlink_nl_eswitch_fill(msg, devlink, DEVLINK_CMD_ESWITCH_GET, |
1997 | info->snd_portid, info->snd_seq, 0); | |
08f4b591 OG |
1998 | |
1999 | if (err) { | |
2000 | nlmsg_free(msg); | |
2001 | return err; | |
2002 | } | |
2003 | ||
2004 | return genlmsg_reply(msg, info); | |
2005 | } | |
2006 | ||
adf200f3 JP |
2007 | static int devlink_nl_cmd_eswitch_set_doit(struct sk_buff *skb, |
2008 | struct genl_info *info) | |
08f4b591 OG |
2009 | { |
2010 | struct devlink *devlink = info->user_ptr[0]; | |
2011 | const struct devlink_ops *ops = devlink->ops; | |
98fdbea5 LR |
2012 | enum devlink_eswitch_encap_mode encap_mode; |
2013 | u8 inline_mode; | |
59bfde01 | 2014 | int err = 0; |
f43e9b06 | 2015 | u16 mode; |
08f4b591 | 2016 | |
59bfde01 RD |
2017 | if (info->attrs[DEVLINK_ATTR_ESWITCH_MODE]) { |
2018 | if (!ops->eswitch_mode_set) | |
2019 | return -EOPNOTSUPP; | |
2020 | mode = nla_get_u16(info->attrs[DEVLINK_ATTR_ESWITCH_MODE]); | |
db7ff19e | 2021 | err = ops->eswitch_mode_set(devlink, mode, info->extack); |
59bfde01 RD |
2022 | if (err) |
2023 | return err; | |
2024 | } | |
08f4b591 | 2025 | |
59bfde01 RD |
2026 | if (info->attrs[DEVLINK_ATTR_ESWITCH_INLINE_MODE]) { |
2027 | if (!ops->eswitch_inline_mode_set) | |
2028 | return -EOPNOTSUPP; | |
2029 | inline_mode = nla_get_u8( | |
2030 | info->attrs[DEVLINK_ATTR_ESWITCH_INLINE_MODE]); | |
db7ff19e EB |
2031 | err = ops->eswitch_inline_mode_set(devlink, inline_mode, |
2032 | info->extack); | |
59bfde01 RD |
2033 | if (err) |
2034 | return err; | |
2035 | } | |
f43e9b06 RD |
2036 | |
2037 | if (info->attrs[DEVLINK_ATTR_ESWITCH_ENCAP_MODE]) { | |
2038 | if (!ops->eswitch_encap_mode_set) | |
2039 | return -EOPNOTSUPP; | |
2040 | encap_mode = nla_get_u8(info->attrs[DEVLINK_ATTR_ESWITCH_ENCAP_MODE]); | |
db7ff19e EB |
2041 | err = ops->eswitch_encap_mode_set(devlink, encap_mode, |
2042 | info->extack); | |
f43e9b06 RD |
2043 | if (err) |
2044 | return err; | |
2045 | } | |
2046 | ||
1555d204 AS |
2047 | return 0; |
2048 | } | |
2049 | ||
2050 | int devlink_dpipe_match_put(struct sk_buff *skb, | |
2051 | struct devlink_dpipe_match *match) | |
2052 | { | |
2053 | struct devlink_dpipe_header *header = match->header; | |
2054 | struct devlink_dpipe_field *field = &header->fields[match->field_id]; | |
2055 | struct nlattr *match_attr; | |
2056 | ||
ae0be8de | 2057 | match_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_MATCH); |
1555d204 AS |
2058 | if (!match_attr) |
2059 | return -EMSGSIZE; | |
2060 | ||
2061 | if (nla_put_u32(skb, DEVLINK_ATTR_DPIPE_MATCH_TYPE, match->type) || | |
2062 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_INDEX, match->header_index) || | |
2063 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_ID, header->id) || | |
2064 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_ID, field->id) || | |
2065 | nla_put_u8(skb, DEVLINK_ATTR_DPIPE_HEADER_GLOBAL, header->global)) | |
2066 | goto nla_put_failure; | |
2067 | ||
2068 | nla_nest_end(skb, match_attr); | |
2069 | return 0; | |
2070 | ||
2071 | nla_put_failure: | |
2072 | nla_nest_cancel(skb, match_attr); | |
2073 | return -EMSGSIZE; | |
2074 | } | |
2075 | EXPORT_SYMBOL_GPL(devlink_dpipe_match_put); | |
2076 | ||
2077 | static int devlink_dpipe_matches_put(struct devlink_dpipe_table *table, | |
2078 | struct sk_buff *skb) | |
2079 | { | |
2080 | struct nlattr *matches_attr; | |
2081 | ||
ae0be8de MK |
2082 | matches_attr = nla_nest_start_noflag(skb, |
2083 | DEVLINK_ATTR_DPIPE_TABLE_MATCHES); | |
1555d204 AS |
2084 | if (!matches_attr) |
2085 | return -EMSGSIZE; | |
2086 | ||
2087 | if (table->table_ops->matches_dump(table->priv, skb)) | |
2088 | goto nla_put_failure; | |
2089 | ||
2090 | nla_nest_end(skb, matches_attr); | |
2091 | return 0; | |
2092 | ||
2093 | nla_put_failure: | |
2094 | nla_nest_cancel(skb, matches_attr); | |
2095 | return -EMSGSIZE; | |
2096 | } | |
2097 | ||
2098 | int devlink_dpipe_action_put(struct sk_buff *skb, | |
2099 | struct devlink_dpipe_action *action) | |
2100 | { | |
2101 | struct devlink_dpipe_header *header = action->header; | |
2102 | struct devlink_dpipe_field *field = &header->fields[action->field_id]; | |
2103 | struct nlattr *action_attr; | |
2104 | ||
ae0be8de | 2105 | action_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_ACTION); |
1555d204 AS |
2106 | if (!action_attr) |
2107 | return -EMSGSIZE; | |
2108 | ||
2109 | if (nla_put_u32(skb, DEVLINK_ATTR_DPIPE_ACTION_TYPE, action->type) || | |
2110 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_INDEX, action->header_index) || | |
2111 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_ID, header->id) || | |
2112 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_ID, field->id) || | |
2113 | nla_put_u8(skb, DEVLINK_ATTR_DPIPE_HEADER_GLOBAL, header->global)) | |
2114 | goto nla_put_failure; | |
2115 | ||
2116 | nla_nest_end(skb, action_attr); | |
2117 | return 0; | |
2118 | ||
2119 | nla_put_failure: | |
2120 | nla_nest_cancel(skb, action_attr); | |
2121 | return -EMSGSIZE; | |
2122 | } | |
2123 | EXPORT_SYMBOL_GPL(devlink_dpipe_action_put); | |
2124 | ||
2125 | static int devlink_dpipe_actions_put(struct devlink_dpipe_table *table, | |
2126 | struct sk_buff *skb) | |
2127 | { | |
2128 | struct nlattr *actions_attr; | |
2129 | ||
ae0be8de MK |
2130 | actions_attr = nla_nest_start_noflag(skb, |
2131 | DEVLINK_ATTR_DPIPE_TABLE_ACTIONS); | |
1555d204 AS |
2132 | if (!actions_attr) |
2133 | return -EMSGSIZE; | |
2134 | ||
2135 | if (table->table_ops->actions_dump(table->priv, skb)) | |
2136 | goto nla_put_failure; | |
2137 | ||
2138 | nla_nest_end(skb, actions_attr); | |
2139 | return 0; | |
2140 | ||
2141 | nla_put_failure: | |
2142 | nla_nest_cancel(skb, actions_attr); | |
2143 | return -EMSGSIZE; | |
2144 | } | |
2145 | ||
2146 | static int devlink_dpipe_table_put(struct sk_buff *skb, | |
2147 | struct devlink_dpipe_table *table) | |
2148 | { | |
2149 | struct nlattr *table_attr; | |
ffd3cdcc | 2150 | u64 table_size; |
1555d204 | 2151 | |
ffd3cdcc | 2152 | table_size = table->table_ops->size_get(table->priv); |
ae0be8de | 2153 | table_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_TABLE); |
1555d204 AS |
2154 | if (!table_attr) |
2155 | return -EMSGSIZE; | |
2156 | ||
2157 | if (nla_put_string(skb, DEVLINK_ATTR_DPIPE_TABLE_NAME, table->name) || | |
ffd3cdcc | 2158 | nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_TABLE_SIZE, table_size, |
1555d204 AS |
2159 | DEVLINK_ATTR_PAD)) |
2160 | goto nla_put_failure; | |
2161 | if (nla_put_u8(skb, DEVLINK_ATTR_DPIPE_TABLE_COUNTERS_ENABLED, | |
2162 | table->counters_enabled)) | |
2163 | goto nla_put_failure; | |
2164 | ||
56dc7cd0 | 2165 | if (table->resource_valid) { |
3d18e4f1 AS |
2166 | if (nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_TABLE_RESOURCE_ID, |
2167 | table->resource_id, DEVLINK_ATTR_PAD) || | |
2168 | nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_TABLE_RESOURCE_UNITS, | |
2169 | table->resource_units, DEVLINK_ATTR_PAD)) | |
2170 | goto nla_put_failure; | |
56dc7cd0 | 2171 | } |
1555d204 AS |
2172 | if (devlink_dpipe_matches_put(table, skb)) |
2173 | goto nla_put_failure; | |
2174 | ||
2175 | if (devlink_dpipe_actions_put(table, skb)) | |
2176 | goto nla_put_failure; | |
2177 | ||
2178 | nla_nest_end(skb, table_attr); | |
2179 | return 0; | |
2180 | ||
2181 | nla_put_failure: | |
2182 | nla_nest_cancel(skb, table_attr); | |
2183 | return -EMSGSIZE; | |
2184 | } | |
2185 | ||
2186 | static int devlink_dpipe_send_and_alloc_skb(struct sk_buff **pskb, | |
2187 | struct genl_info *info) | |
2188 | { | |
2189 | int err; | |
2190 | ||
2191 | if (*pskb) { | |
2192 | err = genlmsg_reply(*pskb, info); | |
2193 | if (err) | |
2194 | return err; | |
2195 | } | |
2196 | *pskb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
2197 | if (!*pskb) | |
2198 | return -ENOMEM; | |
2199 | return 0; | |
2200 | } | |
2201 | ||
2202 | static int devlink_dpipe_tables_fill(struct genl_info *info, | |
2203 | enum devlink_command cmd, int flags, | |
2204 | struct list_head *dpipe_tables, | |
2205 | const char *table_name) | |
2206 | { | |
2207 | struct devlink *devlink = info->user_ptr[0]; | |
2208 | struct devlink_dpipe_table *table; | |
2209 | struct nlattr *tables_attr; | |
2210 | struct sk_buff *skb = NULL; | |
2211 | struct nlmsghdr *nlh; | |
2212 | bool incomplete; | |
2213 | void *hdr; | |
2214 | int i; | |
2215 | int err; | |
2216 | ||
2217 | table = list_first_entry(dpipe_tables, | |
2218 | struct devlink_dpipe_table, list); | |
2219 | start_again: | |
2220 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); | |
2221 | if (err) | |
2222 | return err; | |
2223 | ||
2224 | hdr = genlmsg_put(skb, info->snd_portid, info->snd_seq, | |
2225 | &devlink_nl_family, NLM_F_MULTI, cmd); | |
6044bd4a HY |
2226 | if (!hdr) { |
2227 | nlmsg_free(skb); | |
1555d204 | 2228 | return -EMSGSIZE; |
6044bd4a | 2229 | } |
1555d204 AS |
2230 | |
2231 | if (devlink_nl_put_handle(skb, devlink)) | |
2232 | goto nla_put_failure; | |
ae0be8de | 2233 | tables_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_TABLES); |
1555d204 AS |
2234 | if (!tables_attr) |
2235 | goto nla_put_failure; | |
2236 | ||
2237 | i = 0; | |
2238 | incomplete = false; | |
2239 | list_for_each_entry_from(table, dpipe_tables, list) { | |
2240 | if (!table_name) { | |
2241 | err = devlink_dpipe_table_put(skb, table); | |
2242 | if (err) { | |
2243 | if (!i) | |
2244 | goto err_table_put; | |
2245 | incomplete = true; | |
2246 | break; | |
2247 | } | |
2248 | } else { | |
2249 | if (!strcmp(table->name, table_name)) { | |
2250 | err = devlink_dpipe_table_put(skb, table); | |
2251 | if (err) | |
2252 | break; | |
2253 | } | |
2254 | } | |
2255 | i++; | |
2256 | } | |
2257 | ||
2258 | nla_nest_end(skb, tables_attr); | |
2259 | genlmsg_end(skb, hdr); | |
2260 | if (incomplete) | |
2261 | goto start_again; | |
2262 | ||
2263 | send_done: | |
2264 | nlh = nlmsg_put(skb, info->snd_portid, info->snd_seq, | |
2265 | NLMSG_DONE, 0, flags | NLM_F_MULTI); | |
2266 | if (!nlh) { | |
2267 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); | |
2268 | if (err) | |
7fe4d6dc | 2269 | return err; |
1555d204 AS |
2270 | goto send_done; |
2271 | } | |
2272 | ||
2273 | return genlmsg_reply(skb, info); | |
2274 | ||
2275 | nla_put_failure: | |
2276 | err = -EMSGSIZE; | |
2277 | err_table_put: | |
1555d204 AS |
2278 | nlmsg_free(skb); |
2279 | return err; | |
2280 | } | |
2281 | ||
2282 | static int devlink_nl_cmd_dpipe_table_get(struct sk_buff *skb, | |
2283 | struct genl_info *info) | |
2284 | { | |
2285 | struct devlink *devlink = info->user_ptr[0]; | |
2286 | const char *table_name = NULL; | |
2287 | ||
2288 | if (info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME]) | |
2289 | table_name = nla_data(info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME]); | |
2290 | ||
2291 | return devlink_dpipe_tables_fill(info, DEVLINK_CMD_DPIPE_TABLE_GET, 0, | |
2292 | &devlink->dpipe_table_list, | |
2293 | table_name); | |
2294 | } | |
2295 | ||
2296 | static int devlink_dpipe_value_put(struct sk_buff *skb, | |
2297 | struct devlink_dpipe_value *value) | |
2298 | { | |
2299 | if (nla_put(skb, DEVLINK_ATTR_DPIPE_VALUE, | |
2300 | value->value_size, value->value)) | |
2301 | return -EMSGSIZE; | |
2302 | if (value->mask) | |
2303 | if (nla_put(skb, DEVLINK_ATTR_DPIPE_VALUE_MASK, | |
2304 | value->value_size, value->mask)) | |
2305 | return -EMSGSIZE; | |
2306 | if (value->mapping_valid) | |
2307 | if (nla_put_u32(skb, DEVLINK_ATTR_DPIPE_VALUE_MAPPING, | |
2308 | value->mapping_value)) | |
2309 | return -EMSGSIZE; | |
2310 | return 0; | |
2311 | } | |
2312 | ||
2313 | static int devlink_dpipe_action_value_put(struct sk_buff *skb, | |
2314 | struct devlink_dpipe_value *value) | |
2315 | { | |
2316 | if (!value->action) | |
2317 | return -EINVAL; | |
2318 | if (devlink_dpipe_action_put(skb, value->action)) | |
2319 | return -EMSGSIZE; | |
2320 | if (devlink_dpipe_value_put(skb, value)) | |
2321 | return -EMSGSIZE; | |
2322 | return 0; | |
2323 | } | |
2324 | ||
2325 | static int devlink_dpipe_action_values_put(struct sk_buff *skb, | |
2326 | struct devlink_dpipe_value *values, | |
2327 | unsigned int values_count) | |
2328 | { | |
2329 | struct nlattr *action_attr; | |
2330 | int i; | |
2331 | int err; | |
2332 | ||
2333 | for (i = 0; i < values_count; i++) { | |
ae0be8de MK |
2334 | action_attr = nla_nest_start_noflag(skb, |
2335 | DEVLINK_ATTR_DPIPE_ACTION_VALUE); | |
1555d204 AS |
2336 | if (!action_attr) |
2337 | return -EMSGSIZE; | |
2338 | err = devlink_dpipe_action_value_put(skb, &values[i]); | |
2339 | if (err) | |
2340 | goto err_action_value_put; | |
2341 | nla_nest_end(skb, action_attr); | |
2342 | } | |
2343 | return 0; | |
2344 | ||
2345 | err_action_value_put: | |
2346 | nla_nest_cancel(skb, action_attr); | |
2347 | return err; | |
2348 | } | |
2349 | ||
2350 | static int devlink_dpipe_match_value_put(struct sk_buff *skb, | |
2351 | struct devlink_dpipe_value *value) | |
2352 | { | |
2353 | if (!value->match) | |
2354 | return -EINVAL; | |
2355 | if (devlink_dpipe_match_put(skb, value->match)) | |
2356 | return -EMSGSIZE; | |
2357 | if (devlink_dpipe_value_put(skb, value)) | |
2358 | return -EMSGSIZE; | |
2359 | return 0; | |
2360 | } | |
2361 | ||
2362 | static int devlink_dpipe_match_values_put(struct sk_buff *skb, | |
2363 | struct devlink_dpipe_value *values, | |
2364 | unsigned int values_count) | |
2365 | { | |
2366 | struct nlattr *match_attr; | |
2367 | int i; | |
2368 | int err; | |
2369 | ||
2370 | for (i = 0; i < values_count; i++) { | |
ae0be8de MK |
2371 | match_attr = nla_nest_start_noflag(skb, |
2372 | DEVLINK_ATTR_DPIPE_MATCH_VALUE); | |
1555d204 AS |
2373 | if (!match_attr) |
2374 | return -EMSGSIZE; | |
2375 | err = devlink_dpipe_match_value_put(skb, &values[i]); | |
2376 | if (err) | |
2377 | goto err_match_value_put; | |
2378 | nla_nest_end(skb, match_attr); | |
2379 | } | |
2380 | return 0; | |
2381 | ||
2382 | err_match_value_put: | |
2383 | nla_nest_cancel(skb, match_attr); | |
2384 | return err; | |
2385 | } | |
2386 | ||
2387 | static int devlink_dpipe_entry_put(struct sk_buff *skb, | |
2388 | struct devlink_dpipe_entry *entry) | |
2389 | { | |
2390 | struct nlattr *entry_attr, *matches_attr, *actions_attr; | |
2391 | int err; | |
2392 | ||
ae0be8de | 2393 | entry_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_ENTRY); |
1555d204 AS |
2394 | if (!entry_attr) |
2395 | return -EMSGSIZE; | |
2396 | ||
2397 | if (nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_ENTRY_INDEX, entry->index, | |
2398 | DEVLINK_ATTR_PAD)) | |
2399 | goto nla_put_failure; | |
2400 | if (entry->counter_valid) | |
2401 | if (nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_ENTRY_COUNTER, | |
2402 | entry->counter, DEVLINK_ATTR_PAD)) | |
2403 | goto nla_put_failure; | |
2404 | ||
ae0be8de MK |
2405 | matches_attr = nla_nest_start_noflag(skb, |
2406 | DEVLINK_ATTR_DPIPE_ENTRY_MATCH_VALUES); | |
1555d204 AS |
2407 | if (!matches_attr) |
2408 | goto nla_put_failure; | |
2409 | ||
2410 | err = devlink_dpipe_match_values_put(skb, entry->match_values, | |
2411 | entry->match_values_count); | |
2412 | if (err) { | |
2413 | nla_nest_cancel(skb, matches_attr); | |
2414 | goto err_match_values_put; | |
2415 | } | |
2416 | nla_nest_end(skb, matches_attr); | |
2417 | ||
ae0be8de MK |
2418 | actions_attr = nla_nest_start_noflag(skb, |
2419 | DEVLINK_ATTR_DPIPE_ENTRY_ACTION_VALUES); | |
1555d204 AS |
2420 | if (!actions_attr) |
2421 | goto nla_put_failure; | |
2422 | ||
2423 | err = devlink_dpipe_action_values_put(skb, entry->action_values, | |
2424 | entry->action_values_count); | |
2425 | if (err) { | |
2426 | nla_nest_cancel(skb, actions_attr); | |
2427 | goto err_action_values_put; | |
2428 | } | |
2429 | nla_nest_end(skb, actions_attr); | |
59bfde01 | 2430 | |
1555d204 | 2431 | nla_nest_end(skb, entry_attr); |
59bfde01 | 2432 | return 0; |
1555d204 AS |
2433 | |
2434 | nla_put_failure: | |
2435 | err = -EMSGSIZE; | |
2436 | err_match_values_put: | |
2437 | err_action_values_put: | |
2438 | nla_nest_cancel(skb, entry_attr); | |
2439 | return err; | |
2440 | } | |
2441 | ||
2442 | static struct devlink_dpipe_table * | |
2443 | devlink_dpipe_table_find(struct list_head *dpipe_tables, | |
2eb51c75 | 2444 | const char *table_name, struct devlink *devlink) |
1555d204 AS |
2445 | { |
2446 | struct devlink_dpipe_table *table; | |
2eb51c75 MB |
2447 | list_for_each_entry_rcu(table, dpipe_tables, list, |
2448 | lockdep_is_held(&devlink->lock)) { | |
1555d204 AS |
2449 | if (!strcmp(table->name, table_name)) |
2450 | return table; | |
2451 | } | |
2452 | return NULL; | |
2453 | } | |
2454 | ||
2455 | int devlink_dpipe_entry_ctx_prepare(struct devlink_dpipe_dump_ctx *dump_ctx) | |
2456 | { | |
2457 | struct devlink *devlink; | |
2458 | int err; | |
2459 | ||
2460 | err = devlink_dpipe_send_and_alloc_skb(&dump_ctx->skb, | |
2461 | dump_ctx->info); | |
2462 | if (err) | |
2463 | return err; | |
2464 | ||
2465 | dump_ctx->hdr = genlmsg_put(dump_ctx->skb, | |
2466 | dump_ctx->info->snd_portid, | |
2467 | dump_ctx->info->snd_seq, | |
2468 | &devlink_nl_family, NLM_F_MULTI, | |
2469 | dump_ctx->cmd); | |
2470 | if (!dump_ctx->hdr) | |
2471 | goto nla_put_failure; | |
2472 | ||
2473 | devlink = dump_ctx->info->user_ptr[0]; | |
2474 | if (devlink_nl_put_handle(dump_ctx->skb, devlink)) | |
2475 | goto nla_put_failure; | |
ae0be8de MK |
2476 | dump_ctx->nest = nla_nest_start_noflag(dump_ctx->skb, |
2477 | DEVLINK_ATTR_DPIPE_ENTRIES); | |
1555d204 AS |
2478 | if (!dump_ctx->nest) |
2479 | goto nla_put_failure; | |
2480 | return 0; | |
2481 | ||
2482 | nla_put_failure: | |
1555d204 AS |
2483 | nlmsg_free(dump_ctx->skb); |
2484 | return -EMSGSIZE; | |
2485 | } | |
2486 | EXPORT_SYMBOL_GPL(devlink_dpipe_entry_ctx_prepare); | |
2487 | ||
2488 | int devlink_dpipe_entry_ctx_append(struct devlink_dpipe_dump_ctx *dump_ctx, | |
2489 | struct devlink_dpipe_entry *entry) | |
2490 | { | |
2491 | return devlink_dpipe_entry_put(dump_ctx->skb, entry); | |
2492 | } | |
2493 | EXPORT_SYMBOL_GPL(devlink_dpipe_entry_ctx_append); | |
2494 | ||
2495 | int devlink_dpipe_entry_ctx_close(struct devlink_dpipe_dump_ctx *dump_ctx) | |
2496 | { | |
2497 | nla_nest_end(dump_ctx->skb, dump_ctx->nest); | |
2498 | genlmsg_end(dump_ctx->skb, dump_ctx->hdr); | |
2499 | return 0; | |
2500 | } | |
2501 | EXPORT_SYMBOL_GPL(devlink_dpipe_entry_ctx_close); | |
2502 | ||
35807324 AS |
2503 | void devlink_dpipe_entry_clear(struct devlink_dpipe_entry *entry) |
2504 | ||
2505 | { | |
2506 | unsigned int value_count, value_index; | |
2507 | struct devlink_dpipe_value *value; | |
2508 | ||
2509 | value = entry->action_values; | |
2510 | value_count = entry->action_values_count; | |
2511 | for (value_index = 0; value_index < value_count; value_index++) { | |
2512 | kfree(value[value_index].value); | |
2513 | kfree(value[value_index].mask); | |
2514 | } | |
2515 | ||
2516 | value = entry->match_values; | |
2517 | value_count = entry->match_values_count; | |
2518 | for (value_index = 0; value_index < value_count; value_index++) { | |
2519 | kfree(value[value_index].value); | |
2520 | kfree(value[value_index].mask); | |
2521 | } | |
2522 | } | |
2523 | EXPORT_SYMBOL(devlink_dpipe_entry_clear); | |
2524 | ||
1555d204 AS |
2525 | static int devlink_dpipe_entries_fill(struct genl_info *info, |
2526 | enum devlink_command cmd, int flags, | |
2527 | struct devlink_dpipe_table *table) | |
2528 | { | |
2529 | struct devlink_dpipe_dump_ctx dump_ctx; | |
2530 | struct nlmsghdr *nlh; | |
2531 | int err; | |
2532 | ||
2533 | dump_ctx.skb = NULL; | |
2534 | dump_ctx.cmd = cmd; | |
2535 | dump_ctx.info = info; | |
2536 | ||
2537 | err = table->table_ops->entries_dump(table->priv, | |
2538 | table->counters_enabled, | |
2539 | &dump_ctx); | |
2540 | if (err) | |
7fe4d6dc | 2541 | return err; |
1555d204 AS |
2542 | |
2543 | send_done: | |
2544 | nlh = nlmsg_put(dump_ctx.skb, info->snd_portid, info->snd_seq, | |
2545 | NLMSG_DONE, 0, flags | NLM_F_MULTI); | |
2546 | if (!nlh) { | |
2547 | err = devlink_dpipe_send_and_alloc_skb(&dump_ctx.skb, info); | |
2548 | if (err) | |
7fe4d6dc | 2549 | return err; |
1555d204 AS |
2550 | goto send_done; |
2551 | } | |
2552 | return genlmsg_reply(dump_ctx.skb, info); | |
1555d204 AS |
2553 | } |
2554 | ||
2555 | static int devlink_nl_cmd_dpipe_entries_get(struct sk_buff *skb, | |
2556 | struct genl_info *info) | |
2557 | { | |
2558 | struct devlink *devlink = info->user_ptr[0]; | |
2559 | struct devlink_dpipe_table *table; | |
2560 | const char *table_name; | |
2561 | ||
2562 | if (!info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME]) | |
2563 | return -EINVAL; | |
2564 | ||
2565 | table_name = nla_data(info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME]); | |
2566 | table = devlink_dpipe_table_find(&devlink->dpipe_table_list, | |
2eb51c75 | 2567 | table_name, devlink); |
1555d204 AS |
2568 | if (!table) |
2569 | return -EINVAL; | |
2570 | ||
2571 | if (!table->table_ops->entries_dump) | |
2572 | return -EINVAL; | |
2573 | ||
2574 | return devlink_dpipe_entries_fill(info, DEVLINK_CMD_DPIPE_ENTRIES_GET, | |
2575 | 0, table); | |
2576 | } | |
2577 | ||
2578 | static int devlink_dpipe_fields_put(struct sk_buff *skb, | |
2579 | const struct devlink_dpipe_header *header) | |
2580 | { | |
2581 | struct devlink_dpipe_field *field; | |
2582 | struct nlattr *field_attr; | |
2583 | int i; | |
2584 | ||
2585 | for (i = 0; i < header->fields_count; i++) { | |
2586 | field = &header->fields[i]; | |
ae0be8de MK |
2587 | field_attr = nla_nest_start_noflag(skb, |
2588 | DEVLINK_ATTR_DPIPE_FIELD); | |
1555d204 AS |
2589 | if (!field_attr) |
2590 | return -EMSGSIZE; | |
2591 | if (nla_put_string(skb, DEVLINK_ATTR_DPIPE_FIELD_NAME, field->name) || | |
2592 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_ID, field->id) || | |
2593 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_BITWIDTH, field->bitwidth) || | |
2594 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_MAPPING_TYPE, field->mapping_type)) | |
2595 | goto nla_put_failure; | |
2596 | nla_nest_end(skb, field_attr); | |
2597 | } | |
2598 | return 0; | |
2599 | ||
2600 | nla_put_failure: | |
2601 | nla_nest_cancel(skb, field_attr); | |
2602 | return -EMSGSIZE; | |
2603 | } | |
2604 | ||
2605 | static int devlink_dpipe_header_put(struct sk_buff *skb, | |
2606 | struct devlink_dpipe_header *header) | |
2607 | { | |
2608 | struct nlattr *fields_attr, *header_attr; | |
2609 | int err; | |
2610 | ||
ae0be8de | 2611 | header_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_HEADER); |
cb6bf9cf | 2612 | if (!header_attr) |
1555d204 AS |
2613 | return -EMSGSIZE; |
2614 | ||
2615 | if (nla_put_string(skb, DEVLINK_ATTR_DPIPE_HEADER_NAME, header->name) || | |
2616 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_ID, header->id) || | |
2617 | nla_put_u8(skb, DEVLINK_ATTR_DPIPE_HEADER_GLOBAL, header->global)) | |
2618 | goto nla_put_failure; | |
2619 | ||
ae0be8de MK |
2620 | fields_attr = nla_nest_start_noflag(skb, |
2621 | DEVLINK_ATTR_DPIPE_HEADER_FIELDS); | |
1555d204 AS |
2622 | if (!fields_attr) |
2623 | goto nla_put_failure; | |
2624 | ||
2625 | err = devlink_dpipe_fields_put(skb, header); | |
2626 | if (err) { | |
2627 | nla_nest_cancel(skb, fields_attr); | |
2628 | goto nla_put_failure; | |
2629 | } | |
2630 | nla_nest_end(skb, fields_attr); | |
2631 | nla_nest_end(skb, header_attr); | |
2632 | return 0; | |
2633 | ||
2634 | nla_put_failure: | |
2635 | err = -EMSGSIZE; | |
2636 | nla_nest_cancel(skb, header_attr); | |
2637 | return err; | |
2638 | } | |
2639 | ||
2640 | static int devlink_dpipe_headers_fill(struct genl_info *info, | |
2641 | enum devlink_command cmd, int flags, | |
2642 | struct devlink_dpipe_headers * | |
2643 | dpipe_headers) | |
2644 | { | |
2645 | struct devlink *devlink = info->user_ptr[0]; | |
2646 | struct nlattr *headers_attr; | |
2647 | struct sk_buff *skb = NULL; | |
2648 | struct nlmsghdr *nlh; | |
2649 | void *hdr; | |
2650 | int i, j; | |
2651 | int err; | |
2652 | ||
2653 | i = 0; | |
2654 | start_again: | |
2655 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); | |
2656 | if (err) | |
2657 | return err; | |
2658 | ||
2659 | hdr = genlmsg_put(skb, info->snd_portid, info->snd_seq, | |
2660 | &devlink_nl_family, NLM_F_MULTI, cmd); | |
6044bd4a HY |
2661 | if (!hdr) { |
2662 | nlmsg_free(skb); | |
1555d204 | 2663 | return -EMSGSIZE; |
6044bd4a | 2664 | } |
1555d204 AS |
2665 | |
2666 | if (devlink_nl_put_handle(skb, devlink)) | |
2667 | goto nla_put_failure; | |
ae0be8de | 2668 | headers_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_HEADERS); |
1555d204 AS |
2669 | if (!headers_attr) |
2670 | goto nla_put_failure; | |
2671 | ||
2672 | j = 0; | |
2673 | for (; i < dpipe_headers->headers_count; i++) { | |
2674 | err = devlink_dpipe_header_put(skb, dpipe_headers->headers[i]); | |
2675 | if (err) { | |
2676 | if (!j) | |
2677 | goto err_table_put; | |
2678 | break; | |
2679 | } | |
2680 | j++; | |
2681 | } | |
2682 | nla_nest_end(skb, headers_attr); | |
2683 | genlmsg_end(skb, hdr); | |
2684 | if (i != dpipe_headers->headers_count) | |
2685 | goto start_again; | |
2686 | ||
2687 | send_done: | |
2688 | nlh = nlmsg_put(skb, info->snd_portid, info->snd_seq, | |
2689 | NLMSG_DONE, 0, flags | NLM_F_MULTI); | |
2690 | if (!nlh) { | |
2691 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); | |
2692 | if (err) | |
7fe4d6dc | 2693 | return err; |
1555d204 AS |
2694 | goto send_done; |
2695 | } | |
2696 | return genlmsg_reply(skb, info); | |
2697 | ||
2698 | nla_put_failure: | |
2699 | err = -EMSGSIZE; | |
2700 | err_table_put: | |
1555d204 AS |
2701 | nlmsg_free(skb); |
2702 | return err; | |
2703 | } | |
2704 | ||
2705 | static int devlink_nl_cmd_dpipe_headers_get(struct sk_buff *skb, | |
2706 | struct genl_info *info) | |
2707 | { | |
2708 | struct devlink *devlink = info->user_ptr[0]; | |
2709 | ||
2710 | if (!devlink->dpipe_headers) | |
2711 | return -EOPNOTSUPP; | |
2712 | return devlink_dpipe_headers_fill(info, DEVLINK_CMD_DPIPE_HEADERS_GET, | |
2713 | 0, devlink->dpipe_headers); | |
2714 | } | |
2715 | ||
2716 | static int devlink_dpipe_table_counters_set(struct devlink *devlink, | |
2717 | const char *table_name, | |
2718 | bool enable) | |
2719 | { | |
2720 | struct devlink_dpipe_table *table; | |
2721 | ||
2722 | table = devlink_dpipe_table_find(&devlink->dpipe_table_list, | |
2eb51c75 | 2723 | table_name, devlink); |
1555d204 AS |
2724 | if (!table) |
2725 | return -EINVAL; | |
2726 | ||
2727 | if (table->counter_control_extern) | |
2728 | return -EOPNOTSUPP; | |
2729 | ||
2730 | if (!(table->counters_enabled ^ enable)) | |
2731 | return 0; | |
2732 | ||
2733 | table->counters_enabled = enable; | |
2734 | if (table->table_ops->counters_set_update) | |
2735 | table->table_ops->counters_set_update(table->priv, enable); | |
2736 | return 0; | |
2737 | } | |
2738 | ||
2739 | static int devlink_nl_cmd_dpipe_table_counters_set(struct sk_buff *skb, | |
2740 | struct genl_info *info) | |
2741 | { | |
2742 | struct devlink *devlink = info->user_ptr[0]; | |
2743 | const char *table_name; | |
2744 | bool counters_enable; | |
2745 | ||
2746 | if (!info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME] || | |
2747 | !info->attrs[DEVLINK_ATTR_DPIPE_TABLE_COUNTERS_ENABLED]) | |
2748 | return -EINVAL; | |
2749 | ||
2750 | table_name = nla_data(info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME]); | |
2751 | counters_enable = !!nla_get_u8(info->attrs[DEVLINK_ATTR_DPIPE_TABLE_COUNTERS_ENABLED]); | |
2752 | ||
2753 | return devlink_dpipe_table_counters_set(devlink, table_name, | |
2754 | counters_enable); | |
08f4b591 OG |
2755 | } |
2756 | ||
43dd7512 | 2757 | static struct devlink_resource * |
d9f9b9a4 AS |
2758 | devlink_resource_find(struct devlink *devlink, |
2759 | struct devlink_resource *resource, u64 resource_id) | |
2760 | { | |
2761 | struct list_head *resource_list; | |
2762 | ||
2763 | if (resource) | |
2764 | resource_list = &resource->resource_list; | |
2765 | else | |
2766 | resource_list = &devlink->resource_list; | |
2767 | ||
2768 | list_for_each_entry(resource, resource_list, list) { | |
2769 | struct devlink_resource *child_resource; | |
2770 | ||
2771 | if (resource->id == resource_id) | |
2772 | return resource; | |
2773 | ||
2774 | child_resource = devlink_resource_find(devlink, resource, | |
2775 | resource_id); | |
2776 | if (child_resource) | |
2777 | return child_resource; | |
2778 | } | |
2779 | return NULL; | |
2780 | } | |
2781 | ||
43dd7512 WY |
2782 | static void |
2783 | devlink_resource_validate_children(struct devlink_resource *resource) | |
d9f9b9a4 AS |
2784 | { |
2785 | struct devlink_resource *child_resource; | |
2786 | bool size_valid = true; | |
2787 | u64 parts_size = 0; | |
2788 | ||
2789 | if (list_empty(&resource->resource_list)) | |
2790 | goto out; | |
2791 | ||
2792 | list_for_each_entry(child_resource, &resource->resource_list, list) | |
2793 | parts_size += child_resource->size_new; | |
2794 | ||
b9d17175 | 2795 | if (parts_size > resource->size_new) |
d9f9b9a4 AS |
2796 | size_valid = false; |
2797 | out: | |
2798 | resource->size_valid = size_valid; | |
2799 | } | |
2800 | ||
cc944ead AS |
2801 | static int |
2802 | devlink_resource_validate_size(struct devlink_resource *resource, u64 size, | |
2803 | struct netlink_ext_ack *extack) | |
2804 | { | |
2805 | u64 reminder; | |
2806 | int err = 0; | |
2807 | ||
0f3e9c97 | 2808 | if (size > resource->size_params.size_max) { |
cc944ead AS |
2809 | NL_SET_ERR_MSG_MOD(extack, "Size larger than maximum"); |
2810 | err = -EINVAL; | |
2811 | } | |
2812 | ||
0f3e9c97 | 2813 | if (size < resource->size_params.size_min) { |
cc944ead AS |
2814 | NL_SET_ERR_MSG_MOD(extack, "Size smaller than minimum"); |
2815 | err = -EINVAL; | |
2816 | } | |
2817 | ||
0f3e9c97 | 2818 | div64_u64_rem(size, resource->size_params.size_granularity, &reminder); |
cc944ead AS |
2819 | if (reminder) { |
2820 | NL_SET_ERR_MSG_MOD(extack, "Wrong granularity"); | |
2821 | err = -EINVAL; | |
2822 | } | |
2823 | ||
2824 | return err; | |
2825 | } | |
2826 | ||
d9f9b9a4 AS |
2827 | static int devlink_nl_cmd_resource_set(struct sk_buff *skb, |
2828 | struct genl_info *info) | |
2829 | { | |
2830 | struct devlink *devlink = info->user_ptr[0]; | |
2831 | struct devlink_resource *resource; | |
2832 | u64 resource_id; | |
2833 | u64 size; | |
2834 | int err; | |
2835 | ||
2836 | if (!info->attrs[DEVLINK_ATTR_RESOURCE_ID] || | |
2837 | !info->attrs[DEVLINK_ATTR_RESOURCE_SIZE]) | |
2838 | return -EINVAL; | |
2839 | resource_id = nla_get_u64(info->attrs[DEVLINK_ATTR_RESOURCE_ID]); | |
2840 | ||
2841 | resource = devlink_resource_find(devlink, NULL, resource_id); | |
2842 | if (!resource) | |
2843 | return -EINVAL; | |
2844 | ||
d9f9b9a4 | 2845 | size = nla_get_u64(info->attrs[DEVLINK_ATTR_RESOURCE_SIZE]); |
cc944ead | 2846 | err = devlink_resource_validate_size(resource, size, info->extack); |
d9f9b9a4 AS |
2847 | if (err) |
2848 | return err; | |
2849 | ||
2850 | resource->size_new = size; | |
2851 | devlink_resource_validate_children(resource); | |
2852 | if (resource->parent) | |
2853 | devlink_resource_validate_children(resource->parent); | |
2854 | return 0; | |
2855 | } | |
2856 | ||
3d18e4f1 | 2857 | static int |
d9f9b9a4 AS |
2858 | devlink_resource_size_params_put(struct devlink_resource *resource, |
2859 | struct sk_buff *skb) | |
2860 | { | |
2861 | struct devlink_resource_size_params *size_params; | |
2862 | ||
77d27096 | 2863 | size_params = &resource->size_params; |
3d18e4f1 AS |
2864 | if (nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE_GRAN, |
2865 | size_params->size_granularity, DEVLINK_ATTR_PAD) || | |
2866 | nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE_MAX, | |
2867 | size_params->size_max, DEVLINK_ATTR_PAD) || | |
2868 | nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE_MIN, | |
2869 | size_params->size_min, DEVLINK_ATTR_PAD) || | |
2870 | nla_put_u8(skb, DEVLINK_ATTR_RESOURCE_UNIT, size_params->unit)) | |
2871 | return -EMSGSIZE; | |
2872 | return 0; | |
d9f9b9a4 AS |
2873 | } |
2874 | ||
fc56be47 JP |
2875 | static int devlink_resource_occ_put(struct devlink_resource *resource, |
2876 | struct sk_buff *skb) | |
2877 | { | |
2878 | if (!resource->occ_get) | |
2879 | return 0; | |
2880 | return nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_OCC, | |
2881 | resource->occ_get(resource->occ_get_priv), | |
2882 | DEVLINK_ATTR_PAD); | |
2883 | } | |
2884 | ||
d9f9b9a4 AS |
2885 | static int devlink_resource_put(struct devlink *devlink, struct sk_buff *skb, |
2886 | struct devlink_resource *resource) | |
2887 | { | |
2888 | struct devlink_resource *child_resource; | |
2889 | struct nlattr *child_resource_attr; | |
2890 | struct nlattr *resource_attr; | |
2891 | ||
ae0be8de | 2892 | resource_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_RESOURCE); |
d9f9b9a4 AS |
2893 | if (!resource_attr) |
2894 | return -EMSGSIZE; | |
2895 | ||
2896 | if (nla_put_string(skb, DEVLINK_ATTR_RESOURCE_NAME, resource->name) || | |
2897 | nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE, resource->size, | |
2898 | DEVLINK_ATTR_PAD) || | |
2899 | nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_ID, resource->id, | |
2900 | DEVLINK_ATTR_PAD)) | |
2901 | goto nla_put_failure; | |
2902 | if (resource->size != resource->size_new) | |
2903 | nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE_NEW, | |
2904 | resource->size_new, DEVLINK_ATTR_PAD); | |
fc56be47 JP |
2905 | if (devlink_resource_occ_put(resource, skb)) |
2906 | goto nla_put_failure; | |
3d18e4f1 AS |
2907 | if (devlink_resource_size_params_put(resource, skb)) |
2908 | goto nla_put_failure; | |
d9f9b9a4 AS |
2909 | if (list_empty(&resource->resource_list)) |
2910 | goto out; | |
2911 | ||
2912 | if (nla_put_u8(skb, DEVLINK_ATTR_RESOURCE_SIZE_VALID, | |
2913 | resource->size_valid)) | |
2914 | goto nla_put_failure; | |
2915 | ||
ae0be8de MK |
2916 | child_resource_attr = nla_nest_start_noflag(skb, |
2917 | DEVLINK_ATTR_RESOURCE_LIST); | |
d9f9b9a4 AS |
2918 | if (!child_resource_attr) |
2919 | goto nla_put_failure; | |
2920 | ||
2921 | list_for_each_entry(child_resource, &resource->resource_list, list) { | |
2922 | if (devlink_resource_put(devlink, skb, child_resource)) | |
2923 | goto resource_put_failure; | |
2924 | } | |
2925 | ||
2926 | nla_nest_end(skb, child_resource_attr); | |
2927 | out: | |
2928 | nla_nest_end(skb, resource_attr); | |
2929 | return 0; | |
2930 | ||
2931 | resource_put_failure: | |
2932 | nla_nest_cancel(skb, child_resource_attr); | |
2933 | nla_put_failure: | |
2934 | nla_nest_cancel(skb, resource_attr); | |
2935 | return -EMSGSIZE; | |
2936 | } | |
2937 | ||
2938 | static int devlink_resource_fill(struct genl_info *info, | |
2939 | enum devlink_command cmd, int flags) | |
2940 | { | |
2941 | struct devlink *devlink = info->user_ptr[0]; | |
2942 | struct devlink_resource *resource; | |
2943 | struct nlattr *resources_attr; | |
2944 | struct sk_buff *skb = NULL; | |
2945 | struct nlmsghdr *nlh; | |
2946 | bool incomplete; | |
2947 | void *hdr; | |
2948 | int i; | |
2949 | int err; | |
2950 | ||
2951 | resource = list_first_entry(&devlink->resource_list, | |
2952 | struct devlink_resource, list); | |
2953 | start_again: | |
2954 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); | |
2955 | if (err) | |
2956 | return err; | |
2957 | ||
2958 | hdr = genlmsg_put(skb, info->snd_portid, info->snd_seq, | |
2959 | &devlink_nl_family, NLM_F_MULTI, cmd); | |
2960 | if (!hdr) { | |
2961 | nlmsg_free(skb); | |
2962 | return -EMSGSIZE; | |
2963 | } | |
2964 | ||
2965 | if (devlink_nl_put_handle(skb, devlink)) | |
2966 | goto nla_put_failure; | |
2967 | ||
ae0be8de MK |
2968 | resources_attr = nla_nest_start_noflag(skb, |
2969 | DEVLINK_ATTR_RESOURCE_LIST); | |
d9f9b9a4 AS |
2970 | if (!resources_attr) |
2971 | goto nla_put_failure; | |
2972 | ||
2973 | incomplete = false; | |
2974 | i = 0; | |
2975 | list_for_each_entry_from(resource, &devlink->resource_list, list) { | |
2976 | err = devlink_resource_put(devlink, skb, resource); | |
2977 | if (err) { | |
2978 | if (!i) | |
2979 | goto err_resource_put; | |
2980 | incomplete = true; | |
2981 | break; | |
2982 | } | |
2983 | i++; | |
2984 | } | |
2985 | nla_nest_end(skb, resources_attr); | |
2986 | genlmsg_end(skb, hdr); | |
2987 | if (incomplete) | |
2988 | goto start_again; | |
2989 | send_done: | |
2990 | nlh = nlmsg_put(skb, info->snd_portid, info->snd_seq, | |
2991 | NLMSG_DONE, 0, flags | NLM_F_MULTI); | |
2992 | if (!nlh) { | |
2993 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); | |
2994 | if (err) | |
83fe9a96 | 2995 | return err; |
d9f9b9a4 AS |
2996 | goto send_done; |
2997 | } | |
2998 | return genlmsg_reply(skb, info); | |
2999 | ||
3000 | nla_put_failure: | |
3001 | err = -EMSGSIZE; | |
3002 | err_resource_put: | |
d9f9b9a4 AS |
3003 | nlmsg_free(skb); |
3004 | return err; | |
3005 | } | |
3006 | ||
3007 | static int devlink_nl_cmd_resource_dump(struct sk_buff *skb, | |
3008 | struct genl_info *info) | |
3009 | { | |
3010 | struct devlink *devlink = info->user_ptr[0]; | |
3011 | ||
3012 | if (list_empty(&devlink->resource_list)) | |
3013 | return -EOPNOTSUPP; | |
3014 | ||
3015 | return devlink_resource_fill(info, DEVLINK_CMD_RESOURCE_DUMP, 0); | |
3016 | } | |
3017 | ||
2d8dc5bb AS |
3018 | static int |
3019 | devlink_resources_validate(struct devlink *devlink, | |
3020 | struct devlink_resource *resource, | |
3021 | struct genl_info *info) | |
3022 | { | |
3023 | struct list_head *resource_list; | |
3024 | int err = 0; | |
3025 | ||
3026 | if (resource) | |
3027 | resource_list = &resource->resource_list; | |
3028 | else | |
3029 | resource_list = &devlink->resource_list; | |
3030 | ||
3031 | list_for_each_entry(resource, resource_list, list) { | |
3032 | if (!resource->size_valid) | |
3033 | return -EINVAL; | |
3034 | err = devlink_resources_validate(devlink, resource, info); | |
3035 | if (err) | |
3036 | return err; | |
3037 | } | |
3038 | return err; | |
3039 | } | |
3040 | ||
070c63f2 JP |
3041 | static struct net *devlink_netns_get(struct sk_buff *skb, |
3042 | struct genl_info *info) | |
3043 | { | |
3044 | struct nlattr *netns_pid_attr = info->attrs[DEVLINK_ATTR_NETNS_PID]; | |
3045 | struct nlattr *netns_fd_attr = info->attrs[DEVLINK_ATTR_NETNS_FD]; | |
3046 | struct nlattr *netns_id_attr = info->attrs[DEVLINK_ATTR_NETNS_ID]; | |
3047 | struct net *net; | |
3048 | ||
3049 | if (!!netns_pid_attr + !!netns_fd_attr + !!netns_id_attr > 1) { | |
054eae82 | 3050 | NL_SET_ERR_MSG_MOD(info->extack, "multiple netns identifying attributes specified"); |
070c63f2 JP |
3051 | return ERR_PTR(-EINVAL); |
3052 | } | |
3053 | ||
3054 | if (netns_pid_attr) { | |
3055 | net = get_net_ns_by_pid(nla_get_u32(netns_pid_attr)); | |
3056 | } else if (netns_fd_attr) { | |
3057 | net = get_net_ns_by_fd(nla_get_u32(netns_fd_attr)); | |
3058 | } else if (netns_id_attr) { | |
3059 | net = get_net_ns_by_id(sock_net(skb->sk), | |
3060 | nla_get_u32(netns_id_attr)); | |
3061 | if (!net) | |
3062 | net = ERR_PTR(-EINVAL); | |
3063 | } else { | |
3064 | WARN_ON(1); | |
3065 | net = ERR_PTR(-EINVAL); | |
3066 | } | |
3067 | if (IS_ERR(net)) { | |
054eae82 | 3068 | NL_SET_ERR_MSG_MOD(info->extack, "Unknown network namespace"); |
070c63f2 JP |
3069 | return ERR_PTR(-EINVAL); |
3070 | } | |
3071 | if (!netlink_ns_capable(skb, net->user_ns, CAP_NET_ADMIN)) { | |
3072 | put_net(net); | |
3073 | return ERR_PTR(-EPERM); | |
3074 | } | |
3075 | return net; | |
3076 | } | |
3077 | ||
3078 | static void devlink_param_notify(struct devlink *devlink, | |
3079 | unsigned int port_index, | |
3080 | struct devlink_param_item *param_item, | |
3081 | enum devlink_command cmd); | |
3082 | ||
3083 | static void devlink_reload_netns_change(struct devlink *devlink, | |
3084 | struct net *dest_net) | |
3085 | { | |
3086 | struct devlink_param_item *param_item; | |
3087 | ||
3088 | /* Userspace needs to be notified about devlink objects | |
3089 | * removed from original and entering new network namespace. | |
3090 | * The rest of the devlink objects are re-created during | |
3091 | * reload process so the notifications are generated separatelly. | |
3092 | */ | |
3093 | ||
3094 | list_for_each_entry(param_item, &devlink->param_list, list) | |
3095 | devlink_param_notify(devlink, 0, param_item, | |
3096 | DEVLINK_CMD_PARAM_DEL); | |
3097 | devlink_notify(devlink, DEVLINK_CMD_DEL); | |
3098 | ||
8273fd84 | 3099 | __devlink_net_set(devlink, dest_net); |
070c63f2 JP |
3100 | |
3101 | devlink_notify(devlink, DEVLINK_CMD_NEW); | |
3102 | list_for_each_entry(param_item, &devlink->param_list, list) | |
3103 | devlink_param_notify(devlink, 0, param_item, | |
3104 | DEVLINK_CMD_PARAM_NEW); | |
3105 | } | |
3106 | ||
69d56e0e | 3107 | static bool devlink_reload_supported(const struct devlink_ops *ops) |
97691069 | 3108 | { |
69d56e0e | 3109 | return ops->reload_down && ops->reload_up; |
97691069 JP |
3110 | } |
3111 | ||
2670ac26 JP |
3112 | static void devlink_reload_failed_set(struct devlink *devlink, |
3113 | bool reload_failed) | |
3114 | { | |
3115 | if (devlink->reload_failed == reload_failed) | |
3116 | return; | |
3117 | devlink->reload_failed = reload_failed; | |
3118 | devlink_notify(devlink, DEVLINK_CMD_NEW); | |
3119 | } | |
3120 | ||
3121 | bool devlink_is_reload_failed(const struct devlink *devlink) | |
3122 | { | |
3123 | return devlink->reload_failed; | |
3124 | } | |
3125 | EXPORT_SYMBOL_GPL(devlink_is_reload_failed); | |
3126 | ||
a254c264 MS |
3127 | static void |
3128 | __devlink_reload_stats_update(struct devlink *devlink, u32 *reload_stats, | |
3129 | enum devlink_reload_limit limit, u32 actions_performed) | |
3130 | { | |
3131 | unsigned long actions = actions_performed; | |
3132 | int stat_idx; | |
3133 | int action; | |
3134 | ||
3135 | for_each_set_bit(action, &actions, __DEVLINK_RELOAD_ACTION_MAX) { | |
3136 | stat_idx = limit * __DEVLINK_RELOAD_ACTION_MAX + action; | |
3137 | reload_stats[stat_idx]++; | |
3138 | } | |
3139 | devlink_notify(devlink, DEVLINK_CMD_NEW); | |
3140 | } | |
3141 | ||
3142 | static void | |
3143 | devlink_reload_stats_update(struct devlink *devlink, enum devlink_reload_limit limit, | |
3144 | u32 actions_performed) | |
3145 | { | |
3146 | __devlink_reload_stats_update(devlink, devlink->stats.reload_stats, limit, | |
3147 | actions_performed); | |
3148 | } | |
3149 | ||
77069ba2 MS |
3150 | /** |
3151 | * devlink_remote_reload_actions_performed - Update devlink on reload actions | |
3152 | * performed which are not a direct result of devlink reload call. | |
3153 | * | |
3154 | * This should be called by a driver after performing reload actions in case it was not | |
3155 | * a result of devlink reload call. For example fw_activate was performed as a result | |
3156 | * of devlink reload triggered fw_activate on another host. | |
3157 | * The motivation for this function is to keep data on reload actions performed on this | |
3158 | * function whether it was done due to direct devlink reload call or not. | |
3159 | * | |
3160 | * @devlink: devlink | |
3161 | * @limit: reload limit | |
3162 | * @actions_performed: bitmask of actions performed | |
3163 | */ | |
3164 | void devlink_remote_reload_actions_performed(struct devlink *devlink, | |
3165 | enum devlink_reload_limit limit, | |
3166 | u32 actions_performed) | |
3167 | { | |
3168 | if (WARN_ON(!actions_performed || | |
3169 | actions_performed & BIT(DEVLINK_RELOAD_ACTION_UNSPEC) || | |
3170 | actions_performed >= BIT(__DEVLINK_RELOAD_ACTION_MAX) || | |
3171 | limit > DEVLINK_RELOAD_LIMIT_MAX)) | |
3172 | return; | |
3173 | ||
3174 | __devlink_reload_stats_update(devlink, devlink->stats.remote_reload_stats, limit, | |
3175 | actions_performed); | |
3176 | } | |
3177 | EXPORT_SYMBOL_GPL(devlink_remote_reload_actions_performed); | |
3178 | ||
070c63f2 | 3179 | static int devlink_reload(struct devlink *devlink, struct net *dest_net, |
dc64cc7c MS |
3180 | enum devlink_reload_action action, enum devlink_reload_limit limit, |
3181 | u32 *actions_performed, struct netlink_ext_ack *extack) | |
070c63f2 | 3182 | { |
77069ba2 | 3183 | u32 remote_reload_stats[DEVLINK_RELOAD_STATS_ARRAY_SIZE]; |
070c63f2 JP |
3184 | int err; |
3185 | ||
a0c76345 JP |
3186 | if (!devlink->reload_enabled) |
3187 | return -EOPNOTSUPP; | |
3188 | ||
77069ba2 MS |
3189 | memcpy(remote_reload_stats, devlink->stats.remote_reload_stats, |
3190 | sizeof(remote_reload_stats)); | |
dc64cc7c | 3191 | err = devlink->ops->reload_down(devlink, !!dest_net, action, limit, extack); |
070c63f2 JP |
3192 | if (err) |
3193 | return err; | |
3194 | ||
3195 | if (dest_net && !net_eq(dest_net, devlink_net(devlink))) | |
3196 | devlink_reload_netns_change(devlink, dest_net); | |
3197 | ||
dc64cc7c | 3198 | err = devlink->ops->reload_up(devlink, action, limit, actions_performed, extack); |
070c63f2 | 3199 | devlink_reload_failed_set(devlink, !!err); |
ccdf0721 MS |
3200 | if (err) |
3201 | return err; | |
3202 | ||
3203 | WARN_ON(!(*actions_performed & BIT(action))); | |
77069ba2 MS |
3204 | /* Catch driver on updating the remote action within devlink reload */ |
3205 | WARN_ON(memcmp(remote_reload_stats, devlink->stats.remote_reload_stats, | |
3206 | sizeof(remote_reload_stats))); | |
a254c264 | 3207 | devlink_reload_stats_update(devlink, limit, *actions_performed); |
ccdf0721 MS |
3208 | return 0; |
3209 | } | |
3210 | ||
3211 | static int | |
3212 | devlink_nl_reload_actions_performed_snd(struct devlink *devlink, u32 actions_performed, | |
3213 | enum devlink_command cmd, struct genl_info *info) | |
3214 | { | |
3215 | struct sk_buff *msg; | |
3216 | void *hdr; | |
3217 | ||
3218 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
3219 | if (!msg) | |
3220 | return -ENOMEM; | |
3221 | ||
3222 | hdr = genlmsg_put(msg, info->snd_portid, info->snd_seq, &devlink_nl_family, 0, cmd); | |
3223 | if (!hdr) | |
3224 | goto free_msg; | |
3225 | ||
3226 | if (devlink_nl_put_handle(msg, devlink)) | |
3227 | goto nla_put_failure; | |
3228 | ||
3229 | if (nla_put_bitfield32(msg, DEVLINK_ATTR_RELOAD_ACTIONS_PERFORMED, actions_performed, | |
3230 | actions_performed)) | |
3231 | goto nla_put_failure; | |
3232 | genlmsg_end(msg, hdr); | |
3233 | ||
3234 | return genlmsg_reply(msg, info); | |
3235 | ||
3236 | nla_put_failure: | |
3237 | genlmsg_cancel(msg, hdr); | |
3238 | free_msg: | |
3239 | nlmsg_free(msg); | |
3240 | return -EMSGSIZE; | |
070c63f2 JP |
3241 | } |
3242 | ||
2d8dc5bb AS |
3243 | static int devlink_nl_cmd_reload(struct sk_buff *skb, struct genl_info *info) |
3244 | { | |
3245 | struct devlink *devlink = info->user_ptr[0]; | |
ccdf0721 | 3246 | enum devlink_reload_action action; |
dc64cc7c | 3247 | enum devlink_reload_limit limit; |
070c63f2 | 3248 | struct net *dest_net = NULL; |
ccdf0721 | 3249 | u32 actions_performed; |
2d8dc5bb AS |
3250 | int err; |
3251 | ||
69d56e0e | 3252 | if (!devlink_reload_supported(devlink->ops)) |
2d8dc5bb AS |
3253 | return -EOPNOTSUPP; |
3254 | ||
3255 | err = devlink_resources_validate(devlink, NULL, info); | |
3256 | if (err) { | |
3257 | NL_SET_ERR_MSG_MOD(info->extack, "resources size validation failed"); | |
3258 | return err; | |
3259 | } | |
070c63f2 JP |
3260 | |
3261 | if (info->attrs[DEVLINK_ATTR_NETNS_PID] || | |
3262 | info->attrs[DEVLINK_ATTR_NETNS_FD] || | |
3263 | info->attrs[DEVLINK_ATTR_NETNS_ID]) { | |
3264 | dest_net = devlink_netns_get(skb, info); | |
3265 | if (IS_ERR(dest_net)) | |
3266 | return PTR_ERR(dest_net); | |
3267 | } | |
3268 | ||
ccdf0721 MS |
3269 | if (info->attrs[DEVLINK_ATTR_RELOAD_ACTION]) |
3270 | action = nla_get_u8(info->attrs[DEVLINK_ATTR_RELOAD_ACTION]); | |
3271 | else | |
3272 | action = DEVLINK_RELOAD_ACTION_DRIVER_REINIT; | |
3273 | ||
3274 | if (!devlink_reload_action_is_supported(devlink, action)) { | |
3275 | NL_SET_ERR_MSG_MOD(info->extack, | |
3276 | "Requested reload action is not supported by the driver"); | |
3277 | return -EOPNOTSUPP; | |
3278 | } | |
3279 | ||
dc64cc7c MS |
3280 | limit = DEVLINK_RELOAD_LIMIT_UNSPEC; |
3281 | if (info->attrs[DEVLINK_ATTR_RELOAD_LIMITS]) { | |
3282 | struct nla_bitfield32 limits; | |
3283 | u32 limits_selected; | |
3284 | ||
3285 | limits = nla_get_bitfield32(info->attrs[DEVLINK_ATTR_RELOAD_LIMITS]); | |
3286 | limits_selected = limits.value & limits.selector; | |
3287 | if (!limits_selected) { | |
3288 | NL_SET_ERR_MSG_MOD(info->extack, "Invalid limit selected"); | |
3289 | return -EINVAL; | |
3290 | } | |
3291 | for (limit = 0 ; limit <= DEVLINK_RELOAD_LIMIT_MAX ; limit++) | |
3292 | if (limits_selected & BIT(limit)) | |
3293 | break; | |
3294 | /* UAPI enables multiselection, but currently it is not used */ | |
3295 | if (limits_selected != BIT(limit)) { | |
3296 | NL_SET_ERR_MSG_MOD(info->extack, | |
3297 | "Multiselection of limit is not supported"); | |
3298 | return -EOPNOTSUPP; | |
3299 | } | |
3300 | if (!devlink_reload_limit_is_supported(devlink, limit)) { | |
3301 | NL_SET_ERR_MSG_MOD(info->extack, | |
3302 | "Requested limit is not supported by the driver"); | |
3303 | return -EOPNOTSUPP; | |
3304 | } | |
3305 | if (devlink_reload_combination_is_invalid(action, limit)) { | |
3306 | NL_SET_ERR_MSG_MOD(info->extack, | |
3307 | "Requested limit is invalid for this action"); | |
3308 | return -EINVAL; | |
3309 | } | |
3310 | } | |
3311 | err = devlink_reload(devlink, dest_net, action, limit, &actions_performed, info->extack); | |
070c63f2 JP |
3312 | |
3313 | if (dest_net) | |
3314 | put_net(dest_net); | |
3315 | ||
ccdf0721 MS |
3316 | if (err) |
3317 | return err; | |
3318 | /* For backward compatibility generate reply only if attributes used by user */ | |
dc64cc7c | 3319 | if (!info->attrs[DEVLINK_ATTR_RELOAD_ACTION] && !info->attrs[DEVLINK_ATTR_RELOAD_LIMITS]) |
ccdf0721 MS |
3320 | return 0; |
3321 | ||
3322 | return devlink_nl_reload_actions_performed_snd(devlink, actions_performed, | |
3323 | DEVLINK_CMD_RELOAD, info); | |
2d8dc5bb AS |
3324 | } |
3325 | ||
191ed202 JP |
3326 | static int devlink_nl_flash_update_fill(struct sk_buff *msg, |
3327 | struct devlink *devlink, | |
3328 | enum devlink_command cmd, | |
6700acc5 | 3329 | struct devlink_flash_notify *params) |
191ed202 JP |
3330 | { |
3331 | void *hdr; | |
3332 | ||
3333 | hdr = genlmsg_put(msg, 0, 0, &devlink_nl_family, 0, cmd); | |
3334 | if (!hdr) | |
3335 | return -EMSGSIZE; | |
3336 | ||
3337 | if (devlink_nl_put_handle(msg, devlink)) | |
3338 | goto nla_put_failure; | |
3339 | ||
3340 | if (cmd != DEVLINK_CMD_FLASH_UPDATE_STATUS) | |
3341 | goto out; | |
3342 | ||
6700acc5 | 3343 | if (params->status_msg && |
191ed202 | 3344 | nla_put_string(msg, DEVLINK_ATTR_FLASH_UPDATE_STATUS_MSG, |
6700acc5 | 3345 | params->status_msg)) |
191ed202 | 3346 | goto nla_put_failure; |
6700acc5 | 3347 | if (params->component && |
191ed202 | 3348 | nla_put_string(msg, DEVLINK_ATTR_FLASH_UPDATE_COMPONENT, |
6700acc5 | 3349 | params->component)) |
191ed202 JP |
3350 | goto nla_put_failure; |
3351 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_FLASH_UPDATE_STATUS_DONE, | |
6700acc5 | 3352 | params->done, DEVLINK_ATTR_PAD)) |
191ed202 JP |
3353 | goto nla_put_failure; |
3354 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_FLASH_UPDATE_STATUS_TOTAL, | |
6700acc5 | 3355 | params->total, DEVLINK_ATTR_PAD)) |
191ed202 | 3356 | goto nla_put_failure; |
f92970c6 | 3357 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_FLASH_UPDATE_STATUS_TIMEOUT, |
6700acc5 | 3358 | params->timeout, DEVLINK_ATTR_PAD)) |
f92970c6 | 3359 | goto nla_put_failure; |
191ed202 JP |
3360 | |
3361 | out: | |
3362 | genlmsg_end(msg, hdr); | |
3363 | return 0; | |
3364 | ||
3365 | nla_put_failure: | |
3366 | genlmsg_cancel(msg, hdr); | |
3367 | return -EMSGSIZE; | |
3368 | } | |
3369 | ||
3370 | static void __devlink_flash_update_notify(struct devlink *devlink, | |
3371 | enum devlink_command cmd, | |
6700acc5 | 3372 | struct devlink_flash_notify *params) |
191ed202 JP |
3373 | { |
3374 | struct sk_buff *msg; | |
3375 | int err; | |
3376 | ||
3377 | WARN_ON(cmd != DEVLINK_CMD_FLASH_UPDATE && | |
3378 | cmd != DEVLINK_CMD_FLASH_UPDATE_END && | |
3379 | cmd != DEVLINK_CMD_FLASH_UPDATE_STATUS); | |
3380 | ||
3381 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
3382 | if (!msg) | |
3383 | return; | |
3384 | ||
6700acc5 | 3385 | err = devlink_nl_flash_update_fill(msg, devlink, cmd, params); |
191ed202 JP |
3386 | if (err) |
3387 | goto out_free_msg; | |
3388 | ||
3389 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), | |
3390 | msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
3391 | return; | |
3392 | ||
3393 | out_free_msg: | |
3394 | nlmsg_free(msg); | |
3395 | } | |
3396 | ||
52cc5f3a | 3397 | static void devlink_flash_update_begin_notify(struct devlink *devlink) |
191ed202 | 3398 | { |
6700acc5 SN |
3399 | struct devlink_flash_notify params = { 0 }; |
3400 | ||
191ed202 JP |
3401 | __devlink_flash_update_notify(devlink, |
3402 | DEVLINK_CMD_FLASH_UPDATE, | |
6700acc5 | 3403 | ¶ms); |
191ed202 | 3404 | } |
191ed202 | 3405 | |
52cc5f3a | 3406 | static void devlink_flash_update_end_notify(struct devlink *devlink) |
191ed202 | 3407 | { |
6700acc5 SN |
3408 | struct devlink_flash_notify params = { 0 }; |
3409 | ||
191ed202 JP |
3410 | __devlink_flash_update_notify(devlink, |
3411 | DEVLINK_CMD_FLASH_UPDATE_END, | |
6700acc5 | 3412 | ¶ms); |
191ed202 | 3413 | } |
191ed202 JP |
3414 | |
3415 | void devlink_flash_update_status_notify(struct devlink *devlink, | |
3416 | const char *status_msg, | |
3417 | const char *component, | |
3418 | unsigned long done, | |
3419 | unsigned long total) | |
3420 | { | |
6700acc5 SN |
3421 | struct devlink_flash_notify params = { |
3422 | .status_msg = status_msg, | |
3423 | .component = component, | |
3424 | .done = done, | |
3425 | .total = total, | |
3426 | }; | |
3427 | ||
191ed202 JP |
3428 | __devlink_flash_update_notify(devlink, |
3429 | DEVLINK_CMD_FLASH_UPDATE_STATUS, | |
6700acc5 | 3430 | ¶ms); |
191ed202 JP |
3431 | } |
3432 | EXPORT_SYMBOL_GPL(devlink_flash_update_status_notify); | |
3433 | ||
f92970c6 SN |
3434 | void devlink_flash_update_timeout_notify(struct devlink *devlink, |
3435 | const char *status_msg, | |
3436 | const char *component, | |
3437 | unsigned long timeout) | |
3438 | { | |
6700acc5 SN |
3439 | struct devlink_flash_notify params = { |
3440 | .status_msg = status_msg, | |
3441 | .component = component, | |
3442 | .timeout = timeout, | |
3443 | }; | |
3444 | ||
f92970c6 SN |
3445 | __devlink_flash_update_notify(devlink, |
3446 | DEVLINK_CMD_FLASH_UPDATE_STATUS, | |
6700acc5 | 3447 | ¶ms); |
f92970c6 SN |
3448 | } |
3449 | EXPORT_SYMBOL_GPL(devlink_flash_update_timeout_notify); | |
3450 | ||
76726ccb JK |
3451 | static int devlink_nl_cmd_flash_update(struct sk_buff *skb, |
3452 | struct genl_info *info) | |
3453 | { | |
b44cfd4f | 3454 | struct nlattr *nla_component, *nla_overwrite_mask, *nla_file_name; |
bc75c054 | 3455 | struct devlink_flash_update_params params = {}; |
76726ccb | 3456 | struct devlink *devlink = info->user_ptr[0]; |
b44cfd4f | 3457 | const char *file_name; |
22ec3d23 | 3458 | u32 supported_params; |
b44cfd4f | 3459 | int ret; |
76726ccb JK |
3460 | |
3461 | if (!devlink->ops->flash_update) | |
3462 | return -EOPNOTSUPP; | |
3463 | ||
3464 | if (!info->attrs[DEVLINK_ATTR_FLASH_UPDATE_FILE_NAME]) | |
3465 | return -EINVAL; | |
22ec3d23 JK |
3466 | |
3467 | supported_params = devlink->ops->supported_flash_update_params; | |
3468 | ||
76726ccb | 3469 | nla_component = info->attrs[DEVLINK_ATTR_FLASH_UPDATE_COMPONENT]; |
22ec3d23 JK |
3470 | if (nla_component) { |
3471 | if (!(supported_params & DEVLINK_SUPPORT_FLASH_UPDATE_COMPONENT)) { | |
3472 | NL_SET_ERR_MSG_ATTR(info->extack, nla_component, | |
3473 | "component update is not supported by this device"); | |
3474 | return -EOPNOTSUPP; | |
3475 | } | |
bc75c054 | 3476 | params.component = nla_data(nla_component); |
22ec3d23 | 3477 | } |
76726ccb | 3478 | |
5d5b4128 JK |
3479 | nla_overwrite_mask = info->attrs[DEVLINK_ATTR_FLASH_UPDATE_OVERWRITE_MASK]; |
3480 | if (nla_overwrite_mask) { | |
3481 | struct nla_bitfield32 sections; | |
3482 | ||
3483 | if (!(supported_params & DEVLINK_SUPPORT_FLASH_UPDATE_OVERWRITE_MASK)) { | |
3484 | NL_SET_ERR_MSG_ATTR(info->extack, nla_overwrite_mask, | |
3485 | "overwrite settings are not supported by this device"); | |
3486 | return -EOPNOTSUPP; | |
3487 | } | |
3488 | sections = nla_get_bitfield32(nla_overwrite_mask); | |
3489 | params.overwrite_mask = sections.value & sections.selector; | |
3490 | } | |
3491 | ||
b44cfd4f JK |
3492 | nla_file_name = info->attrs[DEVLINK_ATTR_FLASH_UPDATE_FILE_NAME]; |
3493 | file_name = nla_data(nla_file_name); | |
3494 | ret = request_firmware(¶ms.fw, file_name, devlink->dev); | |
3495 | if (ret) { | |
3496 | NL_SET_ERR_MSG_ATTR(info->extack, nla_file_name, "failed to locate the requested firmware file"); | |
3497 | return ret; | |
3498 | } | |
3499 | ||
52cc5f3a | 3500 | devlink_flash_update_begin_notify(devlink); |
b44cfd4f | 3501 | ret = devlink->ops->flash_update(devlink, ¶ms, info->extack); |
52cc5f3a | 3502 | devlink_flash_update_end_notify(devlink); |
b44cfd4f JK |
3503 | |
3504 | release_firmware(params.fw); | |
3505 | ||
3506 | return ret; | |
76726ccb JK |
3507 | } |
3508 | ||
036467c3 MS |
3509 | static const struct devlink_param devlink_param_generic[] = { |
3510 | { | |
3511 | .id = DEVLINK_PARAM_GENERIC_ID_INT_ERR_RESET, | |
3512 | .name = DEVLINK_PARAM_GENERIC_INT_ERR_RESET_NAME, | |
3513 | .type = DEVLINK_PARAM_GENERIC_INT_ERR_RESET_TYPE, | |
3514 | }, | |
3515 | { | |
3516 | .id = DEVLINK_PARAM_GENERIC_ID_MAX_MACS, | |
3517 | .name = DEVLINK_PARAM_GENERIC_MAX_MACS_NAME, | |
3518 | .type = DEVLINK_PARAM_GENERIC_MAX_MACS_TYPE, | |
3519 | }, | |
f567bcda VV |
3520 | { |
3521 | .id = DEVLINK_PARAM_GENERIC_ID_ENABLE_SRIOV, | |
3522 | .name = DEVLINK_PARAM_GENERIC_ENABLE_SRIOV_NAME, | |
3523 | .type = DEVLINK_PARAM_GENERIC_ENABLE_SRIOV_TYPE, | |
3524 | }, | |
f6a69885 AV |
3525 | { |
3526 | .id = DEVLINK_PARAM_GENERIC_ID_REGION_SNAPSHOT, | |
3527 | .name = DEVLINK_PARAM_GENERIC_REGION_SNAPSHOT_NAME, | |
3528 | .type = DEVLINK_PARAM_GENERIC_REGION_SNAPSHOT_TYPE, | |
3529 | }, | |
e3b51061 VV |
3530 | { |
3531 | .id = DEVLINK_PARAM_GENERIC_ID_IGNORE_ARI, | |
3532 | .name = DEVLINK_PARAM_GENERIC_IGNORE_ARI_NAME, | |
3533 | .type = DEVLINK_PARAM_GENERIC_IGNORE_ARI_TYPE, | |
3534 | }, | |
f61cba42 VV |
3535 | { |
3536 | .id = DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MAX, | |
3537 | .name = DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MAX_NAME, | |
3538 | .type = DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MAX_TYPE, | |
3539 | }, | |
16511789 VV |
3540 | { |
3541 | .id = DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MIN, | |
3542 | .name = DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MIN_NAME, | |
3543 | .type = DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MIN_TYPE, | |
3544 | }, | |
846e980a ST |
3545 | { |
3546 | .id = DEVLINK_PARAM_GENERIC_ID_FW_LOAD_POLICY, | |
3547 | .name = DEVLINK_PARAM_GENERIC_FW_LOAD_POLICY_NAME, | |
3548 | .type = DEVLINK_PARAM_GENERIC_FW_LOAD_POLICY_TYPE, | |
3549 | }, | |
5bbd21df DM |
3550 | { |
3551 | .id = DEVLINK_PARAM_GENERIC_ID_RESET_DEV_ON_DRV_PROBE, | |
3552 | .name = DEVLINK_PARAM_GENERIC_RESET_DEV_ON_DRV_PROBE_NAME, | |
3553 | .type = DEVLINK_PARAM_GENERIC_RESET_DEV_ON_DRV_PROBE_TYPE, | |
3554 | }, | |
6c7295e1 MG |
3555 | { |
3556 | .id = DEVLINK_PARAM_GENERIC_ID_ENABLE_ROCE, | |
3557 | .name = DEVLINK_PARAM_GENERIC_ENABLE_ROCE_NAME, | |
3558 | .type = DEVLINK_PARAM_GENERIC_ENABLE_ROCE_TYPE, | |
3559 | }, | |
195d9dec MS |
3560 | { |
3561 | .id = DEVLINK_PARAM_GENERIC_ID_ENABLE_REMOTE_DEV_RESET, | |
3562 | .name = DEVLINK_PARAM_GENERIC_ENABLE_REMOTE_DEV_RESET_NAME, | |
3563 | .type = DEVLINK_PARAM_GENERIC_ENABLE_REMOTE_DEV_RESET_TYPE, | |
3564 | }, | |
036467c3 | 3565 | }; |
eabaef18 MS |
3566 | |
3567 | static int devlink_param_generic_verify(const struct devlink_param *param) | |
3568 | { | |
3569 | /* verify it match generic parameter by id and name */ | |
3570 | if (param->id > DEVLINK_PARAM_GENERIC_ID_MAX) | |
3571 | return -EINVAL; | |
3572 | if (strcmp(param->name, devlink_param_generic[param->id].name)) | |
3573 | return -ENOENT; | |
3574 | ||
3575 | WARN_ON(param->type != devlink_param_generic[param->id].type); | |
3576 | ||
3577 | return 0; | |
3578 | } | |
3579 | ||
3580 | static int devlink_param_driver_verify(const struct devlink_param *param) | |
3581 | { | |
3582 | int i; | |
3583 | ||
3584 | if (param->id <= DEVLINK_PARAM_GENERIC_ID_MAX) | |
3585 | return -EINVAL; | |
3586 | /* verify no such name in generic params */ | |
3587 | for (i = 0; i <= DEVLINK_PARAM_GENERIC_ID_MAX; i++) | |
3588 | if (!strcmp(param->name, devlink_param_generic[i].name)) | |
3589 | return -EEXIST; | |
3590 | ||
3591 | return 0; | |
3592 | } | |
3593 | ||
3594 | static struct devlink_param_item * | |
3595 | devlink_param_find_by_name(struct list_head *param_list, | |
3596 | const char *param_name) | |
3597 | { | |
3598 | struct devlink_param_item *param_item; | |
3599 | ||
3600 | list_for_each_entry(param_item, param_list, list) | |
3601 | if (!strcmp(param_item->param->name, param_name)) | |
3602 | return param_item; | |
3603 | return NULL; | |
3604 | } | |
3605 | ||
ec01aeb1 MS |
3606 | static struct devlink_param_item * |
3607 | devlink_param_find_by_id(struct list_head *param_list, u32 param_id) | |
3608 | { | |
3609 | struct devlink_param_item *param_item; | |
3610 | ||
3611 | list_for_each_entry(param_item, param_list, list) | |
3612 | if (param_item->param->id == param_id) | |
3613 | return param_item; | |
3614 | return NULL; | |
3615 | } | |
3616 | ||
45f05def MS |
3617 | static bool |
3618 | devlink_param_cmode_is_supported(const struct devlink_param *param, | |
3619 | enum devlink_param_cmode cmode) | |
3620 | { | |
3621 | return test_bit(cmode, ¶m->supported_cmodes); | |
3622 | } | |
3623 | ||
3624 | static int devlink_param_get(struct devlink *devlink, | |
3625 | const struct devlink_param *param, | |
3626 | struct devlink_param_gset_ctx *ctx) | |
3627 | { | |
3628 | if (!param->get) | |
3629 | return -EOPNOTSUPP; | |
3630 | return param->get(devlink, param->id, ctx); | |
3631 | } | |
3632 | ||
e3b7ca18 MS |
3633 | static int devlink_param_set(struct devlink *devlink, |
3634 | const struct devlink_param *param, | |
3635 | struct devlink_param_gset_ctx *ctx) | |
3636 | { | |
3637 | if (!param->set) | |
3638 | return -EOPNOTSUPP; | |
3639 | return param->set(devlink, param->id, ctx); | |
3640 | } | |
3641 | ||
45f05def MS |
3642 | static int |
3643 | devlink_param_type_to_nla_type(enum devlink_param_type param_type) | |
3644 | { | |
3645 | switch (param_type) { | |
3646 | case DEVLINK_PARAM_TYPE_U8: | |
3647 | return NLA_U8; | |
3648 | case DEVLINK_PARAM_TYPE_U16: | |
3649 | return NLA_U16; | |
3650 | case DEVLINK_PARAM_TYPE_U32: | |
3651 | return NLA_U32; | |
3652 | case DEVLINK_PARAM_TYPE_STRING: | |
3653 | return NLA_STRING; | |
3654 | case DEVLINK_PARAM_TYPE_BOOL: | |
3655 | return NLA_FLAG; | |
3656 | default: | |
3657 | return -EINVAL; | |
3658 | } | |
3659 | } | |
3660 | ||
3661 | static int | |
3662 | devlink_nl_param_value_fill_one(struct sk_buff *msg, | |
3663 | enum devlink_param_type type, | |
3664 | enum devlink_param_cmode cmode, | |
3665 | union devlink_param_value val) | |
3666 | { | |
3667 | struct nlattr *param_value_attr; | |
3668 | ||
ae0be8de MK |
3669 | param_value_attr = nla_nest_start_noflag(msg, |
3670 | DEVLINK_ATTR_PARAM_VALUE); | |
45f05def MS |
3671 | if (!param_value_attr) |
3672 | goto nla_put_failure; | |
3673 | ||
3674 | if (nla_put_u8(msg, DEVLINK_ATTR_PARAM_VALUE_CMODE, cmode)) | |
3675 | goto value_nest_cancel; | |
3676 | ||
3677 | switch (type) { | |
3678 | case DEVLINK_PARAM_TYPE_U8: | |
3679 | if (nla_put_u8(msg, DEVLINK_ATTR_PARAM_VALUE_DATA, val.vu8)) | |
3680 | goto value_nest_cancel; | |
3681 | break; | |
3682 | case DEVLINK_PARAM_TYPE_U16: | |
3683 | if (nla_put_u16(msg, DEVLINK_ATTR_PARAM_VALUE_DATA, val.vu16)) | |
3684 | goto value_nest_cancel; | |
3685 | break; | |
3686 | case DEVLINK_PARAM_TYPE_U32: | |
3687 | if (nla_put_u32(msg, DEVLINK_ATTR_PARAM_VALUE_DATA, val.vu32)) | |
3688 | goto value_nest_cancel; | |
3689 | break; | |
3690 | case DEVLINK_PARAM_TYPE_STRING: | |
3691 | if (nla_put_string(msg, DEVLINK_ATTR_PARAM_VALUE_DATA, | |
3692 | val.vstr)) | |
3693 | goto value_nest_cancel; | |
3694 | break; | |
3695 | case DEVLINK_PARAM_TYPE_BOOL: | |
3696 | if (val.vbool && | |
3697 | nla_put_flag(msg, DEVLINK_ATTR_PARAM_VALUE_DATA)) | |
3698 | goto value_nest_cancel; | |
3699 | break; | |
3700 | } | |
3701 | ||
3702 | nla_nest_end(msg, param_value_attr); | |
3703 | return 0; | |
3704 | ||
3705 | value_nest_cancel: | |
3706 | nla_nest_cancel(msg, param_value_attr); | |
3707 | nla_put_failure: | |
3708 | return -EMSGSIZE; | |
3709 | } | |
3710 | ||
3711 | static int devlink_nl_param_fill(struct sk_buff *msg, struct devlink *devlink, | |
f4601dee | 3712 | unsigned int port_index, |
45f05def MS |
3713 | struct devlink_param_item *param_item, |
3714 | enum devlink_command cmd, | |
3715 | u32 portid, u32 seq, int flags) | |
3716 | { | |
3717 | union devlink_param_value param_value[DEVLINK_PARAM_CMODE_MAX + 1]; | |
7c62cfb8 | 3718 | bool param_value_set[DEVLINK_PARAM_CMODE_MAX + 1] = {}; |
45f05def MS |
3719 | const struct devlink_param *param = param_item->param; |
3720 | struct devlink_param_gset_ctx ctx; | |
3721 | struct nlattr *param_values_list; | |
3722 | struct nlattr *param_attr; | |
3723 | int nla_type; | |
3724 | void *hdr; | |
3725 | int err; | |
3726 | int i; | |
3727 | ||
3728 | /* Get value from driver part to driverinit configuration mode */ | |
3729 | for (i = 0; i <= DEVLINK_PARAM_CMODE_MAX; i++) { | |
3730 | if (!devlink_param_cmode_is_supported(param, i)) | |
3731 | continue; | |
3732 | if (i == DEVLINK_PARAM_CMODE_DRIVERINIT) { | |
3733 | if (!param_item->driverinit_value_valid) | |
3734 | return -EOPNOTSUPP; | |
3735 | param_value[i] = param_item->driverinit_value; | |
3736 | } else { | |
7c62cfb8 JP |
3737 | if (!param_item->published) |
3738 | continue; | |
45f05def MS |
3739 | ctx.cmode = i; |
3740 | err = devlink_param_get(devlink, param, &ctx); | |
3741 | if (err) | |
3742 | return err; | |
3743 | param_value[i] = ctx.val; | |
3744 | } | |
7c62cfb8 | 3745 | param_value_set[i] = true; |
45f05def MS |
3746 | } |
3747 | ||
3748 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
3749 | if (!hdr) | |
3750 | return -EMSGSIZE; | |
3751 | ||
3752 | if (devlink_nl_put_handle(msg, devlink)) | |
3753 | goto genlmsg_cancel; | |
f4601dee | 3754 | |
c1e5786d VV |
3755 | if (cmd == DEVLINK_CMD_PORT_PARAM_GET || |
3756 | cmd == DEVLINK_CMD_PORT_PARAM_NEW || | |
3757 | cmd == DEVLINK_CMD_PORT_PARAM_DEL) | |
f4601dee VV |
3758 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, port_index)) |
3759 | goto genlmsg_cancel; | |
3760 | ||
ae0be8de | 3761 | param_attr = nla_nest_start_noflag(msg, DEVLINK_ATTR_PARAM); |
45f05def MS |
3762 | if (!param_attr) |
3763 | goto genlmsg_cancel; | |
3764 | if (nla_put_string(msg, DEVLINK_ATTR_PARAM_NAME, param->name)) | |
3765 | goto param_nest_cancel; | |
3766 | if (param->generic && nla_put_flag(msg, DEVLINK_ATTR_PARAM_GENERIC)) | |
3767 | goto param_nest_cancel; | |
3768 | ||
3769 | nla_type = devlink_param_type_to_nla_type(param->type); | |
3770 | if (nla_type < 0) | |
3771 | goto param_nest_cancel; | |
3772 | if (nla_put_u8(msg, DEVLINK_ATTR_PARAM_TYPE, nla_type)) | |
3773 | goto param_nest_cancel; | |
3774 | ||
ae0be8de MK |
3775 | param_values_list = nla_nest_start_noflag(msg, |
3776 | DEVLINK_ATTR_PARAM_VALUES_LIST); | |
45f05def MS |
3777 | if (!param_values_list) |
3778 | goto param_nest_cancel; | |
3779 | ||
3780 | for (i = 0; i <= DEVLINK_PARAM_CMODE_MAX; i++) { | |
7c62cfb8 | 3781 | if (!param_value_set[i]) |
45f05def MS |
3782 | continue; |
3783 | err = devlink_nl_param_value_fill_one(msg, param->type, | |
3784 | i, param_value[i]); | |
3785 | if (err) | |
3786 | goto values_list_nest_cancel; | |
3787 | } | |
3788 | ||
3789 | nla_nest_end(msg, param_values_list); | |
3790 | nla_nest_end(msg, param_attr); | |
3791 | genlmsg_end(msg, hdr); | |
3792 | return 0; | |
3793 | ||
3794 | values_list_nest_cancel: | |
3795 | nla_nest_end(msg, param_values_list); | |
3796 | param_nest_cancel: | |
3797 | nla_nest_cancel(msg, param_attr); | |
3798 | genlmsg_cancel: | |
3799 | genlmsg_cancel(msg, hdr); | |
3800 | return -EMSGSIZE; | |
3801 | } | |
3802 | ||
ea601e17 | 3803 | static void devlink_param_notify(struct devlink *devlink, |
c1e5786d | 3804 | unsigned int port_index, |
ea601e17 MS |
3805 | struct devlink_param_item *param_item, |
3806 | enum devlink_command cmd) | |
3807 | { | |
3808 | struct sk_buff *msg; | |
3809 | int err; | |
3810 | ||
c1e5786d VV |
3811 | WARN_ON(cmd != DEVLINK_CMD_PARAM_NEW && cmd != DEVLINK_CMD_PARAM_DEL && |
3812 | cmd != DEVLINK_CMD_PORT_PARAM_NEW && | |
3813 | cmd != DEVLINK_CMD_PORT_PARAM_DEL); | |
ea601e17 MS |
3814 | |
3815 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
3816 | if (!msg) | |
3817 | return; | |
c1e5786d VV |
3818 | err = devlink_nl_param_fill(msg, devlink, port_index, param_item, cmd, |
3819 | 0, 0, 0); | |
ea601e17 MS |
3820 | if (err) { |
3821 | nlmsg_free(msg); | |
3822 | return; | |
3823 | } | |
3824 | ||
3825 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), | |
3826 | msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
3827 | } | |
3828 | ||
45f05def MS |
3829 | static int devlink_nl_cmd_param_get_dumpit(struct sk_buff *msg, |
3830 | struct netlink_callback *cb) | |
3831 | { | |
3832 | struct devlink_param_item *param_item; | |
3833 | struct devlink *devlink; | |
3834 | int start = cb->args[0]; | |
3835 | int idx = 0; | |
c62c2cfb | 3836 | int err = 0; |
45f05def MS |
3837 | |
3838 | mutex_lock(&devlink_mutex); | |
3839 | list_for_each_entry(devlink, &devlink_list, list) { | |
3840 | if (!net_eq(devlink_net(devlink), sock_net(msg->sk))) | |
3841 | continue; | |
3842 | mutex_lock(&devlink->lock); | |
3843 | list_for_each_entry(param_item, &devlink->param_list, list) { | |
3844 | if (idx < start) { | |
3845 | idx++; | |
3846 | continue; | |
3847 | } | |
f4601dee | 3848 | err = devlink_nl_param_fill(msg, devlink, 0, param_item, |
45f05def MS |
3849 | DEVLINK_CMD_PARAM_GET, |
3850 | NETLINK_CB(cb->skb).portid, | |
3851 | cb->nlh->nlmsg_seq, | |
3852 | NLM_F_MULTI); | |
82274d07 JK |
3853 | if (err == -EOPNOTSUPP) { |
3854 | err = 0; | |
3855 | } else if (err) { | |
45f05def MS |
3856 | mutex_unlock(&devlink->lock); |
3857 | goto out; | |
3858 | } | |
3859 | idx++; | |
3860 | } | |
3861 | mutex_unlock(&devlink->lock); | |
3862 | } | |
3863 | out: | |
3864 | mutex_unlock(&devlink_mutex); | |
3865 | ||
c62c2cfb JP |
3866 | if (err != -EMSGSIZE) |
3867 | return err; | |
3868 | ||
45f05def MS |
3869 | cb->args[0] = idx; |
3870 | return msg->len; | |
3871 | } | |
3872 | ||
e3b7ca18 MS |
3873 | static int |
3874 | devlink_param_type_get_from_info(struct genl_info *info, | |
3875 | enum devlink_param_type *param_type) | |
3876 | { | |
3877 | if (!info->attrs[DEVLINK_ATTR_PARAM_TYPE]) | |
3878 | return -EINVAL; | |
3879 | ||
3880 | switch (nla_get_u8(info->attrs[DEVLINK_ATTR_PARAM_TYPE])) { | |
3881 | case NLA_U8: | |
3882 | *param_type = DEVLINK_PARAM_TYPE_U8; | |
3883 | break; | |
3884 | case NLA_U16: | |
3885 | *param_type = DEVLINK_PARAM_TYPE_U16; | |
3886 | break; | |
3887 | case NLA_U32: | |
3888 | *param_type = DEVLINK_PARAM_TYPE_U32; | |
3889 | break; | |
3890 | case NLA_STRING: | |
3891 | *param_type = DEVLINK_PARAM_TYPE_STRING; | |
3892 | break; | |
3893 | case NLA_FLAG: | |
3894 | *param_type = DEVLINK_PARAM_TYPE_BOOL; | |
3895 | break; | |
3896 | default: | |
3897 | return -EINVAL; | |
3898 | } | |
3899 | ||
3900 | return 0; | |
3901 | } | |
3902 | ||
3903 | static int | |
3904 | devlink_param_value_get_from_info(const struct devlink_param *param, | |
3905 | struct genl_info *info, | |
3906 | union devlink_param_value *value) | |
3907 | { | |
8750939b | 3908 | struct nlattr *param_data; |
f355cfcd MS |
3909 | int len; |
3910 | ||
8750939b JK |
3911 | param_data = info->attrs[DEVLINK_ATTR_PARAM_VALUE_DATA]; |
3912 | ||
3913 | if (param->type != DEVLINK_PARAM_TYPE_BOOL && !param_data) | |
e3b7ca18 MS |
3914 | return -EINVAL; |
3915 | ||
3916 | switch (param->type) { | |
3917 | case DEVLINK_PARAM_TYPE_U8: | |
8750939b JK |
3918 | if (nla_len(param_data) != sizeof(u8)) |
3919 | return -EINVAL; | |
3920 | value->vu8 = nla_get_u8(param_data); | |
e3b7ca18 MS |
3921 | break; |
3922 | case DEVLINK_PARAM_TYPE_U16: | |
8750939b JK |
3923 | if (nla_len(param_data) != sizeof(u16)) |
3924 | return -EINVAL; | |
3925 | value->vu16 = nla_get_u16(param_data); | |
e3b7ca18 MS |
3926 | break; |
3927 | case DEVLINK_PARAM_TYPE_U32: | |
8750939b JK |
3928 | if (nla_len(param_data) != sizeof(u32)) |
3929 | return -EINVAL; | |
3930 | value->vu32 = nla_get_u32(param_data); | |
e3b7ca18 MS |
3931 | break; |
3932 | case DEVLINK_PARAM_TYPE_STRING: | |
8750939b JK |
3933 | len = strnlen(nla_data(param_data), nla_len(param_data)); |
3934 | if (len == nla_len(param_data) || | |
bde74ad1 | 3935 | len >= __DEVLINK_PARAM_MAX_STRING_VALUE) |
e3b7ca18 | 3936 | return -EINVAL; |
8750939b | 3937 | strcpy(value->vstr, nla_data(param_data)); |
e3b7ca18 MS |
3938 | break; |
3939 | case DEVLINK_PARAM_TYPE_BOOL: | |
8750939b JK |
3940 | if (param_data && nla_len(param_data)) |
3941 | return -EINVAL; | |
3942 | value->vbool = nla_get_flag(param_data); | |
e3b7ca18 MS |
3943 | break; |
3944 | } | |
3945 | return 0; | |
3946 | } | |
3947 | ||
45f05def | 3948 | static struct devlink_param_item * |
f4601dee | 3949 | devlink_param_get_from_info(struct list_head *param_list, |
45f05def MS |
3950 | struct genl_info *info) |
3951 | { | |
3952 | char *param_name; | |
3953 | ||
3954 | if (!info->attrs[DEVLINK_ATTR_PARAM_NAME]) | |
3955 | return NULL; | |
3956 | ||
3957 | param_name = nla_data(info->attrs[DEVLINK_ATTR_PARAM_NAME]); | |
f4601dee | 3958 | return devlink_param_find_by_name(param_list, param_name); |
45f05def MS |
3959 | } |
3960 | ||
3961 | static int devlink_nl_cmd_param_get_doit(struct sk_buff *skb, | |
3962 | struct genl_info *info) | |
3963 | { | |
3964 | struct devlink *devlink = info->user_ptr[0]; | |
3965 | struct devlink_param_item *param_item; | |
3966 | struct sk_buff *msg; | |
3967 | int err; | |
3968 | ||
f4601dee | 3969 | param_item = devlink_param_get_from_info(&devlink->param_list, info); |
45f05def MS |
3970 | if (!param_item) |
3971 | return -EINVAL; | |
3972 | ||
3973 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
3974 | if (!msg) | |
3975 | return -ENOMEM; | |
3976 | ||
f4601dee | 3977 | err = devlink_nl_param_fill(msg, devlink, 0, param_item, |
45f05def MS |
3978 | DEVLINK_CMD_PARAM_GET, |
3979 | info->snd_portid, info->snd_seq, 0); | |
3980 | if (err) { | |
3981 | nlmsg_free(msg); | |
3982 | return err; | |
3983 | } | |
3984 | ||
3985 | return genlmsg_reply(msg, info); | |
3986 | } | |
3987 | ||
9c54873b | 3988 | static int __devlink_nl_cmd_param_set_doit(struct devlink *devlink, |
c1e5786d | 3989 | unsigned int port_index, |
9c54873b VV |
3990 | struct list_head *param_list, |
3991 | struct genl_info *info, | |
3992 | enum devlink_command cmd) | |
e3b7ca18 | 3993 | { |
e3b7ca18 MS |
3994 | enum devlink_param_type param_type; |
3995 | struct devlink_param_gset_ctx ctx; | |
3996 | enum devlink_param_cmode cmode; | |
3997 | struct devlink_param_item *param_item; | |
3998 | const struct devlink_param *param; | |
3999 | union devlink_param_value value; | |
4000 | int err = 0; | |
4001 | ||
9c54873b | 4002 | param_item = devlink_param_get_from_info(param_list, info); |
e3b7ca18 MS |
4003 | if (!param_item) |
4004 | return -EINVAL; | |
4005 | param = param_item->param; | |
4006 | err = devlink_param_type_get_from_info(info, ¶m_type); | |
4007 | if (err) | |
4008 | return err; | |
4009 | if (param_type != param->type) | |
4010 | return -EINVAL; | |
4011 | err = devlink_param_value_get_from_info(param, info, &value); | |
4012 | if (err) | |
4013 | return err; | |
4014 | if (param->validate) { | |
4015 | err = param->validate(devlink, param->id, value, info->extack); | |
4016 | if (err) | |
4017 | return err; | |
4018 | } | |
4019 | ||
4020 | if (!info->attrs[DEVLINK_ATTR_PARAM_VALUE_CMODE]) | |
4021 | return -EINVAL; | |
4022 | cmode = nla_get_u8(info->attrs[DEVLINK_ATTR_PARAM_VALUE_CMODE]); | |
4023 | if (!devlink_param_cmode_is_supported(param, cmode)) | |
4024 | return -EOPNOTSUPP; | |
4025 | ||
4026 | if (cmode == DEVLINK_PARAM_CMODE_DRIVERINIT) { | |
1276534c MS |
4027 | if (param->type == DEVLINK_PARAM_TYPE_STRING) |
4028 | strcpy(param_item->driverinit_value.vstr, value.vstr); | |
4029 | else | |
4030 | param_item->driverinit_value = value; | |
e3b7ca18 MS |
4031 | param_item->driverinit_value_valid = true; |
4032 | } else { | |
4033 | if (!param->set) | |
4034 | return -EOPNOTSUPP; | |
4035 | ctx.val = value; | |
4036 | ctx.cmode = cmode; | |
4037 | err = devlink_param_set(devlink, param, &ctx); | |
4038 | if (err) | |
4039 | return err; | |
4040 | } | |
4041 | ||
c1e5786d | 4042 | devlink_param_notify(devlink, port_index, param_item, cmd); |
e3b7ca18 MS |
4043 | return 0; |
4044 | } | |
4045 | ||
9c54873b VV |
4046 | static int devlink_nl_cmd_param_set_doit(struct sk_buff *skb, |
4047 | struct genl_info *info) | |
4048 | { | |
4049 | struct devlink *devlink = info->user_ptr[0]; | |
4050 | ||
c1e5786d | 4051 | return __devlink_nl_cmd_param_set_doit(devlink, 0, &devlink->param_list, |
9c54873b VV |
4052 | info, DEVLINK_CMD_PARAM_NEW); |
4053 | } | |
4054 | ||
eabaef18 | 4055 | static int devlink_param_register_one(struct devlink *devlink, |
c1e5786d | 4056 | unsigned int port_index, |
39e6160e | 4057 | struct list_head *param_list, |
c1e5786d VV |
4058 | const struct devlink_param *param, |
4059 | enum devlink_command cmd) | |
eabaef18 MS |
4060 | { |
4061 | struct devlink_param_item *param_item; | |
4062 | ||
39e6160e | 4063 | if (devlink_param_find_by_name(param_list, param->name)) |
eabaef18 MS |
4064 | return -EEXIST; |
4065 | ||
4066 | if (param->supported_cmodes == BIT(DEVLINK_PARAM_CMODE_DRIVERINIT)) | |
4067 | WARN_ON(param->get || param->set); | |
4068 | else | |
4069 | WARN_ON(!param->get || !param->set); | |
4070 | ||
4071 | param_item = kzalloc(sizeof(*param_item), GFP_KERNEL); | |
4072 | if (!param_item) | |
4073 | return -ENOMEM; | |
4074 | param_item->param = param; | |
4075 | ||
39e6160e | 4076 | list_add_tail(¶m_item->list, param_list); |
c1e5786d | 4077 | devlink_param_notify(devlink, port_index, param_item, cmd); |
eabaef18 MS |
4078 | return 0; |
4079 | } | |
4080 | ||
4081 | static void devlink_param_unregister_one(struct devlink *devlink, | |
c1e5786d | 4082 | unsigned int port_index, |
39e6160e | 4083 | struct list_head *param_list, |
c1e5786d VV |
4084 | const struct devlink_param *param, |
4085 | enum devlink_command cmd) | |
eabaef18 MS |
4086 | { |
4087 | struct devlink_param_item *param_item; | |
4088 | ||
39e6160e | 4089 | param_item = devlink_param_find_by_name(param_list, param->name); |
eabaef18 | 4090 | WARN_ON(!param_item); |
c1e5786d | 4091 | devlink_param_notify(devlink, port_index, param_item, cmd); |
eabaef18 MS |
4092 | list_del(¶m_item->list); |
4093 | kfree(param_item); | |
4094 | } | |
4095 | ||
f4601dee VV |
4096 | static int devlink_nl_cmd_port_param_get_dumpit(struct sk_buff *msg, |
4097 | struct netlink_callback *cb) | |
4098 | { | |
4099 | struct devlink_param_item *param_item; | |
4100 | struct devlink_port *devlink_port; | |
4101 | struct devlink *devlink; | |
4102 | int start = cb->args[0]; | |
4103 | int idx = 0; | |
c62c2cfb | 4104 | int err = 0; |
f4601dee VV |
4105 | |
4106 | mutex_lock(&devlink_mutex); | |
4107 | list_for_each_entry(devlink, &devlink_list, list) { | |
4108 | if (!net_eq(devlink_net(devlink), sock_net(msg->sk))) | |
4109 | continue; | |
4110 | mutex_lock(&devlink->lock); | |
4111 | list_for_each_entry(devlink_port, &devlink->port_list, list) { | |
4112 | list_for_each_entry(param_item, | |
4113 | &devlink_port->param_list, list) { | |
4114 | if (idx < start) { | |
4115 | idx++; | |
4116 | continue; | |
4117 | } | |
4118 | err = devlink_nl_param_fill(msg, | |
4119 | devlink_port->devlink, | |
4120 | devlink_port->index, param_item, | |
4121 | DEVLINK_CMD_PORT_PARAM_GET, | |
4122 | NETLINK_CB(cb->skb).portid, | |
4123 | cb->nlh->nlmsg_seq, | |
4124 | NLM_F_MULTI); | |
82274d07 JK |
4125 | if (err == -EOPNOTSUPP) { |
4126 | err = 0; | |
4127 | } else if (err) { | |
f4601dee VV |
4128 | mutex_unlock(&devlink->lock); |
4129 | goto out; | |
4130 | } | |
4131 | idx++; | |
4132 | } | |
4133 | } | |
4134 | mutex_unlock(&devlink->lock); | |
4135 | } | |
4136 | out: | |
4137 | mutex_unlock(&devlink_mutex); | |
4138 | ||
c62c2cfb JP |
4139 | if (err != -EMSGSIZE) |
4140 | return err; | |
4141 | ||
f4601dee VV |
4142 | cb->args[0] = idx; |
4143 | return msg->len; | |
4144 | } | |
4145 | ||
4146 | static int devlink_nl_cmd_port_param_get_doit(struct sk_buff *skb, | |
4147 | struct genl_info *info) | |
4148 | { | |
4149 | struct devlink_port *devlink_port = info->user_ptr[0]; | |
4150 | struct devlink_param_item *param_item; | |
4151 | struct sk_buff *msg; | |
4152 | int err; | |
4153 | ||
4154 | param_item = devlink_param_get_from_info(&devlink_port->param_list, | |
4155 | info); | |
4156 | if (!param_item) | |
4157 | return -EINVAL; | |
4158 | ||
4159 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
4160 | if (!msg) | |
4161 | return -ENOMEM; | |
4162 | ||
4163 | err = devlink_nl_param_fill(msg, devlink_port->devlink, | |
4164 | devlink_port->index, param_item, | |
4165 | DEVLINK_CMD_PORT_PARAM_GET, | |
4166 | info->snd_portid, info->snd_seq, 0); | |
4167 | if (err) { | |
4168 | nlmsg_free(msg); | |
4169 | return err; | |
4170 | } | |
4171 | ||
4172 | return genlmsg_reply(msg, info); | |
4173 | } | |
4174 | ||
9c54873b VV |
4175 | static int devlink_nl_cmd_port_param_set_doit(struct sk_buff *skb, |
4176 | struct genl_info *info) | |
4177 | { | |
4178 | struct devlink_port *devlink_port = info->user_ptr[0]; | |
4179 | ||
4180 | return __devlink_nl_cmd_param_set_doit(devlink_port->devlink, | |
c1e5786d VV |
4181 | devlink_port->index, |
4182 | &devlink_port->param_list, info, | |
4183 | DEVLINK_CMD_PORT_PARAM_NEW); | |
9c54873b VV |
4184 | } |
4185 | ||
a006d467 AV |
4186 | static int devlink_nl_region_snapshot_id_put(struct sk_buff *msg, |
4187 | struct devlink *devlink, | |
4188 | struct devlink_snapshot *snapshot) | |
4189 | { | |
4190 | struct nlattr *snap_attr; | |
4191 | int err; | |
4192 | ||
ae0be8de | 4193 | snap_attr = nla_nest_start_noflag(msg, DEVLINK_ATTR_REGION_SNAPSHOT); |
a006d467 AV |
4194 | if (!snap_attr) |
4195 | return -EINVAL; | |
4196 | ||
4197 | err = nla_put_u32(msg, DEVLINK_ATTR_REGION_SNAPSHOT_ID, snapshot->id); | |
4198 | if (err) | |
4199 | goto nla_put_failure; | |
4200 | ||
4201 | nla_nest_end(msg, snap_attr); | |
4202 | return 0; | |
4203 | ||
4204 | nla_put_failure: | |
4205 | nla_nest_cancel(msg, snap_attr); | |
4206 | return err; | |
4207 | } | |
4208 | ||
4209 | static int devlink_nl_region_snapshots_id_put(struct sk_buff *msg, | |
4210 | struct devlink *devlink, | |
4211 | struct devlink_region *region) | |
4212 | { | |
4213 | struct devlink_snapshot *snapshot; | |
4214 | struct nlattr *snapshots_attr; | |
4215 | int err; | |
4216 | ||
ae0be8de MK |
4217 | snapshots_attr = nla_nest_start_noflag(msg, |
4218 | DEVLINK_ATTR_REGION_SNAPSHOTS); | |
a006d467 AV |
4219 | if (!snapshots_attr) |
4220 | return -EINVAL; | |
4221 | ||
4222 | list_for_each_entry(snapshot, ®ion->snapshot_list, list) { | |
4223 | err = devlink_nl_region_snapshot_id_put(msg, devlink, snapshot); | |
4224 | if (err) | |
4225 | goto nla_put_failure; | |
4226 | } | |
4227 | ||
4228 | nla_nest_end(msg, snapshots_attr); | |
4229 | return 0; | |
4230 | ||
4231 | nla_put_failure: | |
4232 | nla_nest_cancel(msg, snapshots_attr); | |
4233 | return err; | |
4234 | } | |
4235 | ||
d8db7ea5 AV |
4236 | static int devlink_nl_region_fill(struct sk_buff *msg, struct devlink *devlink, |
4237 | enum devlink_command cmd, u32 portid, | |
4238 | u32 seq, int flags, | |
4239 | struct devlink_region *region) | |
4240 | { | |
4241 | void *hdr; | |
4242 | int err; | |
4243 | ||
4244 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
4245 | if (!hdr) | |
4246 | return -EMSGSIZE; | |
4247 | ||
4248 | err = devlink_nl_put_handle(msg, devlink); | |
4249 | if (err) | |
4250 | goto nla_put_failure; | |
4251 | ||
6c211809 DC |
4252 | if (region->port) { |
4253 | err = nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, | |
4254 | region->port->index); | |
4255 | if (err) | |
544e7c33 | 4256 | goto nla_put_failure; |
6c211809 | 4257 | } |
544e7c33 | 4258 | |
e8937681 | 4259 | err = nla_put_string(msg, DEVLINK_ATTR_REGION_NAME, region->ops->name); |
d8db7ea5 AV |
4260 | if (err) |
4261 | goto nla_put_failure; | |
4262 | ||
4263 | err = nla_put_u64_64bit(msg, DEVLINK_ATTR_REGION_SIZE, | |
4264 | region->size, | |
4265 | DEVLINK_ATTR_PAD); | |
4266 | if (err) | |
4267 | goto nla_put_failure; | |
4268 | ||
a006d467 AV |
4269 | err = devlink_nl_region_snapshots_id_put(msg, devlink, region); |
4270 | if (err) | |
4271 | goto nla_put_failure; | |
4272 | ||
d8db7ea5 AV |
4273 | genlmsg_end(msg, hdr); |
4274 | return 0; | |
4275 | ||
4276 | nla_put_failure: | |
4277 | genlmsg_cancel(msg, hdr); | |
4278 | return err; | |
4279 | } | |
4280 | ||
dd86fec7 JK |
4281 | static struct sk_buff * |
4282 | devlink_nl_region_notify_build(struct devlink_region *region, | |
4283 | struct devlink_snapshot *snapshot, | |
4284 | enum devlink_command cmd, u32 portid, u32 seq) | |
866319bb AV |
4285 | { |
4286 | struct devlink *devlink = region->devlink; | |
4287 | struct sk_buff *msg; | |
4288 | void *hdr; | |
4289 | int err; | |
4290 | ||
866319bb AV |
4291 | |
4292 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
4293 | if (!msg) | |
dd86fec7 | 4294 | return ERR_PTR(-ENOMEM); |
866319bb | 4295 | |
dd86fec7 JK |
4296 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, 0, cmd); |
4297 | if (!hdr) { | |
4298 | err = -EMSGSIZE; | |
866319bb | 4299 | goto out_free_msg; |
dd86fec7 | 4300 | } |
866319bb AV |
4301 | |
4302 | err = devlink_nl_put_handle(msg, devlink); | |
4303 | if (err) | |
4304 | goto out_cancel_msg; | |
4305 | ||
6c211809 DC |
4306 | if (region->port) { |
4307 | err = nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, | |
4308 | region->port->index); | |
4309 | if (err) | |
544e7c33 | 4310 | goto out_cancel_msg; |
6c211809 | 4311 | } |
544e7c33 | 4312 | |
866319bb | 4313 | err = nla_put_string(msg, DEVLINK_ATTR_REGION_NAME, |
e8937681 | 4314 | region->ops->name); |
866319bb AV |
4315 | if (err) |
4316 | goto out_cancel_msg; | |
4317 | ||
4318 | if (snapshot) { | |
4319 | err = nla_put_u32(msg, DEVLINK_ATTR_REGION_SNAPSHOT_ID, | |
4320 | snapshot->id); | |
4321 | if (err) | |
4322 | goto out_cancel_msg; | |
4323 | } else { | |
4324 | err = nla_put_u64_64bit(msg, DEVLINK_ATTR_REGION_SIZE, | |
4325 | region->size, DEVLINK_ATTR_PAD); | |
4326 | if (err) | |
4327 | goto out_cancel_msg; | |
4328 | } | |
4329 | genlmsg_end(msg, hdr); | |
4330 | ||
dd86fec7 | 4331 | return msg; |
866319bb AV |
4332 | |
4333 | out_cancel_msg: | |
4334 | genlmsg_cancel(msg, hdr); | |
4335 | out_free_msg: | |
4336 | nlmsg_free(msg); | |
dd86fec7 JK |
4337 | return ERR_PTR(err); |
4338 | } | |
4339 | ||
4340 | static void devlink_nl_region_notify(struct devlink_region *region, | |
4341 | struct devlink_snapshot *snapshot, | |
4342 | enum devlink_command cmd) | |
4343 | { | |
4344 | struct devlink *devlink = region->devlink; | |
4345 | struct sk_buff *msg; | |
4346 | ||
4347 | WARN_ON(cmd != DEVLINK_CMD_REGION_NEW && cmd != DEVLINK_CMD_REGION_DEL); | |
4348 | ||
4349 | msg = devlink_nl_region_notify_build(region, snapshot, cmd, 0, 0); | |
4350 | if (IS_ERR(msg)) | |
4351 | return; | |
4352 | ||
4353 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), | |
4354 | msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
866319bb AV |
4355 | } |
4356 | ||
12102436 JK |
4357 | /** |
4358 | * __devlink_snapshot_id_increment - Increment number of snapshots using an id | |
4359 | * @devlink: devlink instance | |
4360 | * @id: the snapshot id | |
4361 | * | |
4362 | * Track when a new snapshot begins using an id. Load the count for the | |
4363 | * given id from the snapshot xarray, increment it, and store it back. | |
4364 | * | |
4365 | * Called when a new snapshot is created with the given id. | |
4366 | * | |
4367 | * The id *must* have been previously allocated by | |
4368 | * devlink_region_snapshot_id_get(). | |
4369 | * | |
4370 | * Returns 0 on success, or an error on failure. | |
4371 | */ | |
4372 | static int __devlink_snapshot_id_increment(struct devlink *devlink, u32 id) | |
4373 | { | |
4374 | unsigned long count; | |
4375 | void *p; | |
4376 | ||
4377 | lockdep_assert_held(&devlink->lock); | |
4378 | ||
4379 | p = xa_load(&devlink->snapshot_ids, id); | |
4380 | if (WARN_ON(!p)) | |
4381 | return -EINVAL; | |
4382 | ||
4383 | if (WARN_ON(!xa_is_value(p))) | |
4384 | return -EINVAL; | |
4385 | ||
4386 | count = xa_to_value(p); | |
4387 | count++; | |
4388 | ||
4389 | return xa_err(xa_store(&devlink->snapshot_ids, id, xa_mk_value(count), | |
4390 | GFP_KERNEL)); | |
4391 | } | |
4392 | ||
4393 | /** | |
4394 | * __devlink_snapshot_id_decrement - Decrease number of snapshots using an id | |
4395 | * @devlink: devlink instance | |
4396 | * @id: the snapshot id | |
4397 | * | |
4398 | * Track when a snapshot is deleted and stops using an id. Load the count | |
4399 | * for the given id from the snapshot xarray, decrement it, and store it | |
4400 | * back. | |
4401 | * | |
4402 | * If the count reaches zero, erase this id from the xarray, freeing it | |
4403 | * up for future re-use by devlink_region_snapshot_id_get(). | |
4404 | * | |
4405 | * Called when a snapshot using the given id is deleted, and when the | |
4406 | * initial allocator of the id is finished using it. | |
4407 | */ | |
4408 | static void __devlink_snapshot_id_decrement(struct devlink *devlink, u32 id) | |
4409 | { | |
4410 | unsigned long count; | |
4411 | void *p; | |
4412 | ||
4413 | lockdep_assert_held(&devlink->lock); | |
4414 | ||
4415 | p = xa_load(&devlink->snapshot_ids, id); | |
4416 | if (WARN_ON(!p)) | |
4417 | return; | |
4418 | ||
4419 | if (WARN_ON(!xa_is_value(p))) | |
4420 | return; | |
4421 | ||
4422 | count = xa_to_value(p); | |
4423 | ||
4424 | if (count > 1) { | |
4425 | count--; | |
4426 | xa_store(&devlink->snapshot_ids, id, xa_mk_value(count), | |
4427 | GFP_KERNEL); | |
4428 | } else { | |
4429 | /* If this was the last user, we can erase this id */ | |
4430 | xa_erase(&devlink->snapshot_ids, id); | |
4431 | } | |
4432 | } | |
4433 | ||
b9a17abf JK |
4434 | /** |
4435 | * __devlink_snapshot_id_insert - Insert a specific snapshot ID | |
4436 | * @devlink: devlink instance | |
4437 | * @id: the snapshot id | |
4438 | * | |
4439 | * Mark the given snapshot id as used by inserting a zero value into the | |
4440 | * snapshot xarray. | |
4441 | * | |
4442 | * This must be called while holding the devlink instance lock. Unlike | |
4443 | * devlink_snapshot_id_get, the initial reference count is zero, not one. | |
4444 | * It is expected that the id will immediately be used before | |
4445 | * releasing the devlink instance lock. | |
4446 | * | |
4447 | * Returns zero on success, or an error code if the snapshot id could not | |
4448 | * be inserted. | |
4449 | */ | |
4450 | static int __devlink_snapshot_id_insert(struct devlink *devlink, u32 id) | |
4451 | { | |
4452 | lockdep_assert_held(&devlink->lock); | |
4453 | ||
bd71ea60 | 4454 | if (xa_load(&devlink->snapshot_ids, id)) |
b9a17abf JK |
4455 | return -EEXIST; |
4456 | ||
4457 | return xa_err(xa_store(&devlink->snapshot_ids, id, xa_mk_value(0), | |
4458 | GFP_KERNEL)); | |
4459 | } | |
4460 | ||
7000108f JK |
4461 | /** |
4462 | * __devlink_region_snapshot_id_get - get snapshot ID | |
4463 | * @devlink: devlink instance | |
7ef19d3b | 4464 | * @id: storage to return snapshot id |
7000108f | 4465 | * |
7ef19d3b JK |
4466 | * Allocates a new snapshot id. Returns zero on success, or a negative |
4467 | * error on failure. Must be called while holding the devlink instance | |
4468 | * lock. | |
12102436 JK |
4469 | * |
4470 | * Snapshot IDs are tracked using an xarray which stores the number of | |
4471 | * users of the snapshot id. | |
4472 | * | |
4473 | * Note that the caller of this function counts as a 'user', in order to | |
4474 | * avoid race conditions. The caller must release its hold on the | |
4475 | * snapshot by using devlink_region_snapshot_id_put. | |
7000108f | 4476 | */ |
7ef19d3b | 4477 | static int __devlink_region_snapshot_id_get(struct devlink *devlink, u32 *id) |
7000108f JK |
4478 | { |
4479 | lockdep_assert_held(&devlink->lock); | |
7ef19d3b | 4480 | |
12102436 JK |
4481 | return xa_alloc(&devlink->snapshot_ids, id, xa_mk_value(1), |
4482 | xa_limit_32b, GFP_KERNEL); | |
7000108f JK |
4483 | } |
4484 | ||
cf80faee JK |
4485 | /** |
4486 | * __devlink_region_snapshot_create - create a new snapshot | |
4487 | * This will add a new snapshot of a region. The snapshot | |
4488 | * will be stored on the region struct and can be accessed | |
4489 | * from devlink. This is useful for future analyses of snapshots. | |
4490 | * Multiple snapshots can be created on a region. | |
4491 | * The @snapshot_id should be obtained using the getter function. | |
4492 | * | |
4493 | * Must be called only while holding the devlink instance lock. | |
4494 | * | |
4495 | * @region: devlink region of the snapshot | |
4496 | * @data: snapshot data | |
4497 | * @snapshot_id: snapshot id to be created | |
4498 | */ | |
4499 | static int | |
4500 | __devlink_region_snapshot_create(struct devlink_region *region, | |
4501 | u8 *data, u32 snapshot_id) | |
4502 | { | |
4503 | struct devlink *devlink = region->devlink; | |
4504 | struct devlink_snapshot *snapshot; | |
12102436 | 4505 | int err; |
cf80faee JK |
4506 | |
4507 | lockdep_assert_held(&devlink->lock); | |
4508 | ||
4509 | /* check if region can hold one more snapshot */ | |
4510 | if (region->cur_snapshots == region->max_snapshots) | |
47a39f61 | 4511 | return -ENOSPC; |
cf80faee JK |
4512 | |
4513 | if (devlink_region_snapshot_get_by_id(region, snapshot_id)) | |
4514 | return -EEXIST; | |
4515 | ||
4516 | snapshot = kzalloc(sizeof(*snapshot), GFP_KERNEL); | |
4517 | if (!snapshot) | |
4518 | return -ENOMEM; | |
4519 | ||
12102436 JK |
4520 | err = __devlink_snapshot_id_increment(devlink, snapshot_id); |
4521 | if (err) | |
4522 | goto err_snapshot_id_increment; | |
4523 | ||
cf80faee JK |
4524 | snapshot->id = snapshot_id; |
4525 | snapshot->region = region; | |
4526 | snapshot->data = data; | |
4527 | ||
4528 | list_add_tail(&snapshot->list, ®ion->snapshot_list); | |
4529 | ||
4530 | region->cur_snapshots++; | |
4531 | ||
4532 | devlink_nl_region_notify(region, snapshot, DEVLINK_CMD_REGION_NEW); | |
4533 | return 0; | |
12102436 JK |
4534 | |
4535 | err_snapshot_id_increment: | |
4536 | kfree(snapshot); | |
4537 | return err; | |
cf80faee JK |
4538 | } |
4539 | ||
92b49822 JP |
4540 | static void devlink_region_snapshot_del(struct devlink_region *region, |
4541 | struct devlink_snapshot *snapshot) | |
4542 | { | |
12102436 JK |
4543 | struct devlink *devlink = region->devlink; |
4544 | ||
4545 | lockdep_assert_held(&devlink->lock); | |
4546 | ||
92b49822 JP |
4547 | devlink_nl_region_notify(region, snapshot, DEVLINK_CMD_REGION_DEL); |
4548 | region->cur_snapshots--; | |
4549 | list_del(&snapshot->list); | |
a0a09f6b | 4550 | region->ops->destructor(snapshot->data); |
12102436 | 4551 | __devlink_snapshot_id_decrement(devlink, snapshot->id); |
92b49822 JP |
4552 | kfree(snapshot); |
4553 | } | |
4554 | ||
d8db7ea5 AV |
4555 | static int devlink_nl_cmd_region_get_doit(struct sk_buff *skb, |
4556 | struct genl_info *info) | |
4557 | { | |
4558 | struct devlink *devlink = info->user_ptr[0]; | |
544e7c33 | 4559 | struct devlink_port *port = NULL; |
d8db7ea5 AV |
4560 | struct devlink_region *region; |
4561 | const char *region_name; | |
4562 | struct sk_buff *msg; | |
544e7c33 | 4563 | unsigned int index; |
d8db7ea5 AV |
4564 | int err; |
4565 | ||
4566 | if (!info->attrs[DEVLINK_ATTR_REGION_NAME]) | |
4567 | return -EINVAL; | |
4568 | ||
544e7c33 AL |
4569 | if (info->attrs[DEVLINK_ATTR_PORT_INDEX]) { |
4570 | index = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_INDEX]); | |
4571 | ||
4572 | port = devlink_port_get_by_index(devlink, index); | |
4573 | if (!port) | |
4574 | return -ENODEV; | |
4575 | } | |
4576 | ||
d8db7ea5 | 4577 | region_name = nla_data(info->attrs[DEVLINK_ATTR_REGION_NAME]); |
544e7c33 AL |
4578 | if (port) |
4579 | region = devlink_port_region_get_by_name(port, region_name); | |
4580 | else | |
4581 | region = devlink_region_get_by_name(devlink, region_name); | |
4582 | ||
d8db7ea5 AV |
4583 | if (!region) |
4584 | return -EINVAL; | |
4585 | ||
4586 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
4587 | if (!msg) | |
4588 | return -ENOMEM; | |
4589 | ||
4590 | err = devlink_nl_region_fill(msg, devlink, DEVLINK_CMD_REGION_GET, | |
4591 | info->snd_portid, info->snd_seq, 0, | |
4592 | region); | |
4593 | if (err) { | |
4594 | nlmsg_free(msg); | |
4595 | return err; | |
4596 | } | |
4597 | ||
4598 | return genlmsg_reply(msg, info); | |
4599 | } | |
4600 | ||
544e7c33 AL |
4601 | static int devlink_nl_cmd_region_get_port_dumpit(struct sk_buff *msg, |
4602 | struct netlink_callback *cb, | |
4603 | struct devlink_port *port, | |
4604 | int *idx, | |
4605 | int start) | |
4606 | { | |
4607 | struct devlink_region *region; | |
4608 | int err = 0; | |
4609 | ||
4610 | list_for_each_entry(region, &port->region_list, list) { | |
4611 | if (*idx < start) { | |
4612 | (*idx)++; | |
4613 | continue; | |
4614 | } | |
4615 | err = devlink_nl_region_fill(msg, port->devlink, | |
4616 | DEVLINK_CMD_REGION_GET, | |
4617 | NETLINK_CB(cb->skb).portid, | |
4618 | cb->nlh->nlmsg_seq, | |
4619 | NLM_F_MULTI, region); | |
4620 | if (err) | |
4621 | goto out; | |
4622 | (*idx)++; | |
4623 | } | |
4624 | ||
4625 | out: | |
4626 | return err; | |
4627 | } | |
4628 | ||
4629 | static int devlink_nl_cmd_region_get_devlink_dumpit(struct sk_buff *msg, | |
4630 | struct netlink_callback *cb, | |
4631 | struct devlink *devlink, | |
4632 | int *idx, | |
4633 | int start) | |
4634 | { | |
4635 | struct devlink_region *region; | |
4636 | struct devlink_port *port; | |
4637 | int err = 0; | |
4638 | ||
4639 | mutex_lock(&devlink->lock); | |
4640 | list_for_each_entry(region, &devlink->region_list, list) { | |
4641 | if (*idx < start) { | |
4642 | (*idx)++; | |
4643 | continue; | |
4644 | } | |
4645 | err = devlink_nl_region_fill(msg, devlink, | |
4646 | DEVLINK_CMD_REGION_GET, | |
4647 | NETLINK_CB(cb->skb).portid, | |
4648 | cb->nlh->nlmsg_seq, | |
4649 | NLM_F_MULTI, region); | |
4650 | if (err) | |
4651 | goto out; | |
4652 | (*idx)++; | |
4653 | } | |
4654 | ||
4655 | list_for_each_entry(port, &devlink->port_list, list) { | |
4656 | err = devlink_nl_cmd_region_get_port_dumpit(msg, cb, port, idx, | |
4657 | start); | |
4658 | if (err) | |
4659 | goto out; | |
4660 | } | |
4661 | ||
4662 | out: | |
4663 | mutex_unlock(&devlink->lock); | |
4664 | return err; | |
4665 | } | |
4666 | ||
d8db7ea5 AV |
4667 | static int devlink_nl_cmd_region_get_dumpit(struct sk_buff *msg, |
4668 | struct netlink_callback *cb) | |
4669 | { | |
d8db7ea5 AV |
4670 | struct devlink *devlink; |
4671 | int start = cb->args[0]; | |
4672 | int idx = 0; | |
4673 | int err; | |
4674 | ||
4675 | mutex_lock(&devlink_mutex); | |
4676 | list_for_each_entry(devlink, &devlink_list, list) { | |
4677 | if (!net_eq(devlink_net(devlink), sock_net(msg->sk))) | |
4678 | continue; | |
544e7c33 AL |
4679 | err = devlink_nl_cmd_region_get_devlink_dumpit(msg, cb, devlink, |
4680 | &idx, start); | |
4681 | if (err) | |
4682 | goto out; | |
d8db7ea5 AV |
4683 | } |
4684 | out: | |
4685 | mutex_unlock(&devlink_mutex); | |
4686 | cb->args[0] = idx; | |
4687 | return msg->len; | |
4688 | } | |
4689 | ||
866319bb AV |
4690 | static int devlink_nl_cmd_region_del(struct sk_buff *skb, |
4691 | struct genl_info *info) | |
4692 | { | |
4693 | struct devlink *devlink = info->user_ptr[0]; | |
4694 | struct devlink_snapshot *snapshot; | |
544e7c33 | 4695 | struct devlink_port *port = NULL; |
866319bb AV |
4696 | struct devlink_region *region; |
4697 | const char *region_name; | |
544e7c33 | 4698 | unsigned int index; |
866319bb AV |
4699 | u32 snapshot_id; |
4700 | ||
4701 | if (!info->attrs[DEVLINK_ATTR_REGION_NAME] || | |
4702 | !info->attrs[DEVLINK_ATTR_REGION_SNAPSHOT_ID]) | |
4703 | return -EINVAL; | |
4704 | ||
4705 | region_name = nla_data(info->attrs[DEVLINK_ATTR_REGION_NAME]); | |
4706 | snapshot_id = nla_get_u32(info->attrs[DEVLINK_ATTR_REGION_SNAPSHOT_ID]); | |
4707 | ||
544e7c33 AL |
4708 | if (info->attrs[DEVLINK_ATTR_PORT_INDEX]) { |
4709 | index = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_INDEX]); | |
4710 | ||
4711 | port = devlink_port_get_by_index(devlink, index); | |
4712 | if (!port) | |
4713 | return -ENODEV; | |
4714 | } | |
4715 | ||
4716 | if (port) | |
4717 | region = devlink_port_region_get_by_name(port, region_name); | |
4718 | else | |
4719 | region = devlink_region_get_by_name(devlink, region_name); | |
4720 | ||
866319bb AV |
4721 | if (!region) |
4722 | return -EINVAL; | |
4723 | ||
4724 | snapshot = devlink_region_snapshot_get_by_id(region, snapshot_id); | |
4725 | if (!snapshot) | |
4726 | return -EINVAL; | |
4727 | ||
92b49822 | 4728 | devlink_region_snapshot_del(region, snapshot); |
866319bb AV |
4729 | return 0; |
4730 | } | |
4731 | ||
b9a17abf JK |
4732 | static int |
4733 | devlink_nl_cmd_region_new(struct sk_buff *skb, struct genl_info *info) | |
4734 | { | |
4735 | struct devlink *devlink = info->user_ptr[0]; | |
043b3e22 | 4736 | struct devlink_snapshot *snapshot; |
544e7c33 | 4737 | struct devlink_port *port = NULL; |
043b3e22 | 4738 | struct nlattr *snapshot_id_attr; |
b9a17abf JK |
4739 | struct devlink_region *region; |
4740 | const char *region_name; | |
544e7c33 | 4741 | unsigned int index; |
b9a17abf JK |
4742 | u32 snapshot_id; |
4743 | u8 *data; | |
4744 | int err; | |
4745 | ||
4746 | if (!info->attrs[DEVLINK_ATTR_REGION_NAME]) { | |
4747 | NL_SET_ERR_MSG_MOD(info->extack, "No region name provided"); | |
4748 | return -EINVAL; | |
4749 | } | |
4750 | ||
b9a17abf | 4751 | region_name = nla_data(info->attrs[DEVLINK_ATTR_REGION_NAME]); |
544e7c33 AL |
4752 | |
4753 | if (info->attrs[DEVLINK_ATTR_PORT_INDEX]) { | |
4754 | index = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_INDEX]); | |
4755 | ||
4756 | port = devlink_port_get_by_index(devlink, index); | |
4757 | if (!port) | |
4758 | return -ENODEV; | |
4759 | } | |
4760 | ||
4761 | if (port) | |
4762 | region = devlink_port_region_get_by_name(port, region_name); | |
4763 | else | |
4764 | region = devlink_region_get_by_name(devlink, region_name); | |
4765 | ||
b9a17abf JK |
4766 | if (!region) { |
4767 | NL_SET_ERR_MSG_MOD(info->extack, "The requested region does not exist"); | |
4768 | return -EINVAL; | |
4769 | } | |
4770 | ||
4771 | if (!region->ops->snapshot) { | |
4772 | NL_SET_ERR_MSG_MOD(info->extack, "The requested region does not support taking an immediate snapshot"); | |
4773 | return -EOPNOTSUPP; | |
4774 | } | |
4775 | ||
4776 | if (region->cur_snapshots == region->max_snapshots) { | |
4777 | NL_SET_ERR_MSG_MOD(info->extack, "The region has reached the maximum number of stored snapshots"); | |
4778 | return -ENOSPC; | |
4779 | } | |
4780 | ||
043b3e22 JK |
4781 | snapshot_id_attr = info->attrs[DEVLINK_ATTR_REGION_SNAPSHOT_ID]; |
4782 | if (snapshot_id_attr) { | |
4783 | snapshot_id = nla_get_u32(snapshot_id_attr); | |
b9a17abf | 4784 | |
043b3e22 JK |
4785 | if (devlink_region_snapshot_get_by_id(region, snapshot_id)) { |
4786 | NL_SET_ERR_MSG_MOD(info->extack, "The requested snapshot id is already in use"); | |
4787 | return -EEXIST; | |
4788 | } | |
b9a17abf | 4789 | |
043b3e22 JK |
4790 | err = __devlink_snapshot_id_insert(devlink, snapshot_id); |
4791 | if (err) | |
4792 | return err; | |
4793 | } else { | |
4794 | err = __devlink_region_snapshot_id_get(devlink, &snapshot_id); | |
4795 | if (err) { | |
4796 | NL_SET_ERR_MSG_MOD(info->extack, "Failed to allocate a new snapshot id"); | |
4797 | return err; | |
4798 | } | |
4799 | } | |
b9a17abf | 4800 | |
544e7c33 AL |
4801 | if (port) |
4802 | err = region->port_ops->snapshot(port, region->port_ops, | |
4803 | info->extack, &data); | |
4804 | else | |
4805 | err = region->ops->snapshot(devlink, region->ops, | |
4806 | info->extack, &data); | |
b9a17abf JK |
4807 | if (err) |
4808 | goto err_snapshot_capture; | |
4809 | ||
4810 | err = __devlink_region_snapshot_create(region, data, snapshot_id); | |
4811 | if (err) | |
4812 | goto err_snapshot_create; | |
4813 | ||
043b3e22 JK |
4814 | if (!snapshot_id_attr) { |
4815 | struct sk_buff *msg; | |
4816 | ||
4817 | snapshot = devlink_region_snapshot_get_by_id(region, | |
4818 | snapshot_id); | |
4819 | if (WARN_ON(!snapshot)) | |
4820 | return -EINVAL; | |
4821 | ||
4822 | msg = devlink_nl_region_notify_build(region, snapshot, | |
4823 | DEVLINK_CMD_REGION_NEW, | |
4824 | info->snd_portid, | |
4825 | info->snd_seq); | |
4826 | err = PTR_ERR_OR_ZERO(msg); | |
4827 | if (err) | |
4828 | goto err_notify; | |
4829 | ||
4830 | err = genlmsg_reply(msg, info); | |
4831 | if (err) | |
4832 | goto err_notify; | |
4833 | } | |
4834 | ||
b9a17abf JK |
4835 | return 0; |
4836 | ||
4837 | err_snapshot_create: | |
4838 | region->ops->destructor(data); | |
4839 | err_snapshot_capture: | |
4840 | __devlink_snapshot_id_decrement(devlink, snapshot_id); | |
4841 | return err; | |
043b3e22 JK |
4842 | |
4843 | err_notify: | |
4844 | devlink_region_snapshot_del(region, snapshot); | |
4845 | return err; | |
b9a17abf JK |
4846 | } |
4847 | ||
4e54795a AV |
4848 | static int devlink_nl_cmd_region_read_chunk_fill(struct sk_buff *msg, |
4849 | struct devlink *devlink, | |
4850 | u8 *chunk, u32 chunk_size, | |
4851 | u64 addr) | |
4852 | { | |
4853 | struct nlattr *chunk_attr; | |
4854 | int err; | |
4855 | ||
ae0be8de | 4856 | chunk_attr = nla_nest_start_noflag(msg, DEVLINK_ATTR_REGION_CHUNK); |
4e54795a AV |
4857 | if (!chunk_attr) |
4858 | return -EINVAL; | |
4859 | ||
4860 | err = nla_put(msg, DEVLINK_ATTR_REGION_CHUNK_DATA, chunk_size, chunk); | |
4861 | if (err) | |
4862 | goto nla_put_failure; | |
4863 | ||
4864 | err = nla_put_u64_64bit(msg, DEVLINK_ATTR_REGION_CHUNK_ADDR, addr, | |
4865 | DEVLINK_ATTR_PAD); | |
4866 | if (err) | |
4867 | goto nla_put_failure; | |
4868 | ||
4869 | nla_nest_end(msg, chunk_attr); | |
4870 | return 0; | |
4871 | ||
4872 | nla_put_failure: | |
4873 | nla_nest_cancel(msg, chunk_attr); | |
4874 | return err; | |
4875 | } | |
4876 | ||
4877 | #define DEVLINK_REGION_READ_CHUNK_SIZE 256 | |
4878 | ||
4879 | static int devlink_nl_region_read_snapshot_fill(struct sk_buff *skb, | |
4880 | struct devlink *devlink, | |
4881 | struct devlink_region *region, | |
4882 | struct nlattr **attrs, | |
4883 | u64 start_offset, | |
4884 | u64 end_offset, | |
4e54795a AV |
4885 | u64 *new_offset) |
4886 | { | |
4887 | struct devlink_snapshot *snapshot; | |
4888 | u64 curr_offset = start_offset; | |
4889 | u32 snapshot_id; | |
4890 | int err = 0; | |
4891 | ||
4892 | *new_offset = start_offset; | |
4893 | ||
4894 | snapshot_id = nla_get_u32(attrs[DEVLINK_ATTR_REGION_SNAPSHOT_ID]); | |
4895 | snapshot = devlink_region_snapshot_get_by_id(region, snapshot_id); | |
4896 | if (!snapshot) | |
4897 | return -EINVAL; | |
4898 | ||
4e54795a AV |
4899 | while (curr_offset < end_offset) { |
4900 | u32 data_size; | |
4901 | u8 *data; | |
4902 | ||
4903 | if (end_offset - curr_offset < DEVLINK_REGION_READ_CHUNK_SIZE) | |
4904 | data_size = end_offset - curr_offset; | |
4905 | else | |
4906 | data_size = DEVLINK_REGION_READ_CHUNK_SIZE; | |
4907 | ||
4908 | data = &snapshot->data[curr_offset]; | |
4909 | err = devlink_nl_cmd_region_read_chunk_fill(skb, devlink, | |
4910 | data, data_size, | |
4911 | curr_offset); | |
4912 | if (err) | |
4913 | break; | |
4914 | ||
4915 | curr_offset += data_size; | |
4916 | } | |
4917 | *new_offset = curr_offset; | |
4918 | ||
4919 | return err; | |
4920 | } | |
4921 | ||
4922 | static int devlink_nl_cmd_region_read_dumpit(struct sk_buff *skb, | |
4923 | struct netlink_callback *cb) | |
4924 | { | |
ee85da53 | 4925 | const struct genl_dumpit_info *info = genl_dumpit_info(cb); |
5a46b062 | 4926 | u64 ret_offset, start_offset, end_offset = U64_MAX; |
ee85da53 | 4927 | struct nlattr **attrs = info->attrs; |
544e7c33 | 4928 | struct devlink_port *port = NULL; |
4e54795a AV |
4929 | struct devlink_region *region; |
4930 | struct nlattr *chunks_attr; | |
4931 | const char *region_name; | |
4932 | struct devlink *devlink; | |
544e7c33 | 4933 | unsigned int index; |
4e54795a AV |
4934 | void *hdr; |
4935 | int err; | |
4936 | ||
4937 | start_offset = *((u64 *)&cb->args[0]); | |
4938 | ||
dac7c08f | 4939 | mutex_lock(&devlink_mutex); |
4e54795a | 4940 | devlink = devlink_get_from_attrs(sock_net(cb->skb->sk), attrs); |
fdd41ec2 PP |
4941 | if (IS_ERR(devlink)) { |
4942 | err = PTR_ERR(devlink); | |
dac7c08f | 4943 | goto out_dev; |
fdd41ec2 | 4944 | } |
4e54795a | 4945 | |
4e54795a AV |
4946 | mutex_lock(&devlink->lock); |
4947 | ||
4948 | if (!attrs[DEVLINK_ATTR_REGION_NAME] || | |
fdd41ec2 PP |
4949 | !attrs[DEVLINK_ATTR_REGION_SNAPSHOT_ID]) { |
4950 | err = -EINVAL; | |
4e54795a | 4951 | goto out_unlock; |
fdd41ec2 | 4952 | } |
4e54795a | 4953 | |
544e7c33 AL |
4954 | if (info->attrs[DEVLINK_ATTR_PORT_INDEX]) { |
4955 | index = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_INDEX]); | |
4956 | ||
4957 | port = devlink_port_get_by_index(devlink, index); | |
0d8cb946 DC |
4958 | if (!port) { |
4959 | err = -ENODEV; | |
4960 | goto out_unlock; | |
4961 | } | |
544e7c33 AL |
4962 | } |
4963 | ||
4e54795a | 4964 | region_name = nla_data(attrs[DEVLINK_ATTR_REGION_NAME]); |
544e7c33 AL |
4965 | |
4966 | if (port) | |
4967 | region = devlink_port_region_get_by_name(port, region_name); | |
4968 | else | |
4969 | region = devlink_region_get_by_name(devlink, region_name); | |
4970 | ||
fdd41ec2 PP |
4971 | if (!region) { |
4972 | err = -EINVAL; | |
4e54795a | 4973 | goto out_unlock; |
fdd41ec2 | 4974 | } |
4e54795a | 4975 | |
5a46b062 JK |
4976 | if (attrs[DEVLINK_ATTR_REGION_CHUNK_ADDR] && |
4977 | attrs[DEVLINK_ATTR_REGION_CHUNK_LEN]) { | |
4978 | if (!start_offset) | |
4979 | start_offset = | |
4980 | nla_get_u64(attrs[DEVLINK_ATTR_REGION_CHUNK_ADDR]); | |
4981 | ||
4982 | end_offset = nla_get_u64(attrs[DEVLINK_ATTR_REGION_CHUNK_ADDR]); | |
4983 | end_offset += nla_get_u64(attrs[DEVLINK_ATTR_REGION_CHUNK_LEN]); | |
4984 | } | |
4985 | ||
4986 | if (end_offset > region->size) | |
4987 | end_offset = region->size; | |
4988 | ||
d5b90e99 | 4989 | /* return 0 if there is no further data to read */ |
5a46b062 | 4990 | if (start_offset == end_offset) { |
d5b90e99 JK |
4991 | err = 0; |
4992 | goto out_unlock; | |
4993 | } | |
4994 | ||
4e54795a AV |
4995 | hdr = genlmsg_put(skb, NETLINK_CB(cb->skb).portid, cb->nlh->nlmsg_seq, |
4996 | &devlink_nl_family, NLM_F_ACK | NLM_F_MULTI, | |
4997 | DEVLINK_CMD_REGION_READ); | |
fdd41ec2 PP |
4998 | if (!hdr) { |
4999 | err = -EMSGSIZE; | |
4e54795a | 5000 | goto out_unlock; |
fdd41ec2 | 5001 | } |
4e54795a AV |
5002 | |
5003 | err = devlink_nl_put_handle(skb, devlink); | |
5004 | if (err) | |
5005 | goto nla_put_failure; | |
5006 | ||
6c211809 DC |
5007 | if (region->port) { |
5008 | err = nla_put_u32(skb, DEVLINK_ATTR_PORT_INDEX, | |
5009 | region->port->index); | |
5010 | if (err) | |
544e7c33 | 5011 | goto nla_put_failure; |
6c211809 | 5012 | } |
544e7c33 | 5013 | |
4e54795a AV |
5014 | err = nla_put_string(skb, DEVLINK_ATTR_REGION_NAME, region_name); |
5015 | if (err) | |
5016 | goto nla_put_failure; | |
5017 | ||
ae0be8de | 5018 | chunks_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_REGION_CHUNKS); |
fdd41ec2 PP |
5019 | if (!chunks_attr) { |
5020 | err = -EMSGSIZE; | |
4e54795a | 5021 | goto nla_put_failure; |
fdd41ec2 | 5022 | } |
4e54795a | 5023 | |
4e54795a AV |
5024 | err = devlink_nl_region_read_snapshot_fill(skb, devlink, |
5025 | region, attrs, | |
5026 | start_offset, | |
5a46b062 | 5027 | end_offset, &ret_offset); |
4e54795a AV |
5028 | |
5029 | if (err && err != -EMSGSIZE) | |
5030 | goto nla_put_failure; | |
5031 | ||
5032 | /* Check if there was any progress done to prevent infinite loop */ | |
fdd41ec2 PP |
5033 | if (ret_offset == start_offset) { |
5034 | err = -EINVAL; | |
4e54795a | 5035 | goto nla_put_failure; |
fdd41ec2 | 5036 | } |
4e54795a AV |
5037 | |
5038 | *((u64 *)&cb->args[0]) = ret_offset; | |
5039 | ||
5040 | nla_nest_end(skb, chunks_attr); | |
5041 | genlmsg_end(skb, hdr); | |
5042 | mutex_unlock(&devlink->lock); | |
5043 | mutex_unlock(&devlink_mutex); | |
5044 | ||
5045 | return skb->len; | |
5046 | ||
5047 | nla_put_failure: | |
5048 | genlmsg_cancel(skb, hdr); | |
5049 | out_unlock: | |
5050 | mutex_unlock(&devlink->lock); | |
dac7c08f | 5051 | out_dev: |
4e54795a | 5052 | mutex_unlock(&devlink_mutex); |
fdd41ec2 | 5053 | return err; |
4e54795a AV |
5054 | } |
5055 | ||
f9cf2288 JK |
5056 | struct devlink_info_req { |
5057 | struct sk_buff *msg; | |
5058 | }; | |
5059 | ||
5060 | int devlink_info_driver_name_put(struct devlink_info_req *req, const char *name) | |
5061 | { | |
5062 | return nla_put_string(req->msg, DEVLINK_ATTR_INFO_DRIVER_NAME, name); | |
5063 | } | |
5064 | EXPORT_SYMBOL_GPL(devlink_info_driver_name_put); | |
5065 | ||
5066 | int devlink_info_serial_number_put(struct devlink_info_req *req, const char *sn) | |
5067 | { | |
5068 | return nla_put_string(req->msg, DEVLINK_ATTR_INFO_SERIAL_NUMBER, sn); | |
5069 | } | |
5070 | EXPORT_SYMBOL_GPL(devlink_info_serial_number_put); | |
5071 | ||
b5872cd0 VV |
5072 | int devlink_info_board_serial_number_put(struct devlink_info_req *req, |
5073 | const char *bsn) | |
5074 | { | |
5075 | return nla_put_string(req->msg, DEVLINK_ATTR_INFO_BOARD_SERIAL_NUMBER, | |
5076 | bsn); | |
5077 | } | |
5078 | EXPORT_SYMBOL_GPL(devlink_info_board_serial_number_put); | |
5079 | ||
fc6fae7d JK |
5080 | static int devlink_info_version_put(struct devlink_info_req *req, int attr, |
5081 | const char *version_name, | |
5082 | const char *version_value) | |
5083 | { | |
5084 | struct nlattr *nest; | |
5085 | int err; | |
5086 | ||
ae0be8de | 5087 | nest = nla_nest_start_noflag(req->msg, attr); |
fc6fae7d JK |
5088 | if (!nest) |
5089 | return -EMSGSIZE; | |
5090 | ||
5091 | err = nla_put_string(req->msg, DEVLINK_ATTR_INFO_VERSION_NAME, | |
5092 | version_name); | |
5093 | if (err) | |
5094 | goto nla_put_failure; | |
5095 | ||
5096 | err = nla_put_string(req->msg, DEVLINK_ATTR_INFO_VERSION_VALUE, | |
5097 | version_value); | |
5098 | if (err) | |
5099 | goto nla_put_failure; | |
5100 | ||
5101 | nla_nest_end(req->msg, nest); | |
5102 | ||
5103 | return 0; | |
5104 | ||
5105 | nla_put_failure: | |
5106 | nla_nest_cancel(req->msg, nest); | |
5107 | return err; | |
5108 | } | |
5109 | ||
5110 | int devlink_info_version_fixed_put(struct devlink_info_req *req, | |
5111 | const char *version_name, | |
5112 | const char *version_value) | |
5113 | { | |
5114 | return devlink_info_version_put(req, DEVLINK_ATTR_INFO_VERSION_FIXED, | |
5115 | version_name, version_value); | |
5116 | } | |
5117 | EXPORT_SYMBOL_GPL(devlink_info_version_fixed_put); | |
5118 | ||
5119 | int devlink_info_version_stored_put(struct devlink_info_req *req, | |
5120 | const char *version_name, | |
5121 | const char *version_value) | |
5122 | { | |
5123 | return devlink_info_version_put(req, DEVLINK_ATTR_INFO_VERSION_STORED, | |
5124 | version_name, version_value); | |
5125 | } | |
5126 | EXPORT_SYMBOL_GPL(devlink_info_version_stored_put); | |
5127 | ||
5128 | int devlink_info_version_running_put(struct devlink_info_req *req, | |
5129 | const char *version_name, | |
5130 | const char *version_value) | |
5131 | { | |
5132 | return devlink_info_version_put(req, DEVLINK_ATTR_INFO_VERSION_RUNNING, | |
5133 | version_name, version_value); | |
5134 | } | |
5135 | EXPORT_SYMBOL_GPL(devlink_info_version_running_put); | |
5136 | ||
f9cf2288 JK |
5137 | static int |
5138 | devlink_nl_info_fill(struct sk_buff *msg, struct devlink *devlink, | |
5139 | enum devlink_command cmd, u32 portid, | |
5140 | u32 seq, int flags, struct netlink_ext_ack *extack) | |
5141 | { | |
5142 | struct devlink_info_req req; | |
5143 | void *hdr; | |
5144 | int err; | |
5145 | ||
5146 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
5147 | if (!hdr) | |
5148 | return -EMSGSIZE; | |
5149 | ||
5150 | err = -EMSGSIZE; | |
5151 | if (devlink_nl_put_handle(msg, devlink)) | |
5152 | goto err_cancel_msg; | |
5153 | ||
5154 | req.msg = msg; | |
5155 | err = devlink->ops->info_get(devlink, &req, extack); | |
5156 | if (err) | |
5157 | goto err_cancel_msg; | |
5158 | ||
5159 | genlmsg_end(msg, hdr); | |
5160 | return 0; | |
5161 | ||
5162 | err_cancel_msg: | |
5163 | genlmsg_cancel(msg, hdr); | |
5164 | return err; | |
5165 | } | |
5166 | ||
5167 | static int devlink_nl_cmd_info_get_doit(struct sk_buff *skb, | |
5168 | struct genl_info *info) | |
5169 | { | |
5170 | struct devlink *devlink = info->user_ptr[0]; | |
5171 | struct sk_buff *msg; | |
5172 | int err; | |
5173 | ||
be6fe1d8 | 5174 | if (!devlink->ops->info_get) |
f9cf2288 JK |
5175 | return -EOPNOTSUPP; |
5176 | ||
5177 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
5178 | if (!msg) | |
5179 | return -ENOMEM; | |
5180 | ||
5181 | err = devlink_nl_info_fill(msg, devlink, DEVLINK_CMD_INFO_GET, | |
5182 | info->snd_portid, info->snd_seq, 0, | |
5183 | info->extack); | |
5184 | if (err) { | |
5185 | nlmsg_free(msg); | |
5186 | return err; | |
5187 | } | |
5188 | ||
5189 | return genlmsg_reply(msg, info); | |
5190 | } | |
5191 | ||
5192 | static int devlink_nl_cmd_info_get_dumpit(struct sk_buff *msg, | |
5193 | struct netlink_callback *cb) | |
5194 | { | |
5195 | struct devlink *devlink; | |
5196 | int start = cb->args[0]; | |
5197 | int idx = 0; | |
c62c2cfb | 5198 | int err = 0; |
f9cf2288 JK |
5199 | |
5200 | mutex_lock(&devlink_mutex); | |
5201 | list_for_each_entry(devlink, &devlink_list, list) { | |
5202 | if (!net_eq(devlink_net(devlink), sock_net(msg->sk))) | |
5203 | continue; | |
5204 | if (idx < start) { | |
5205 | idx++; | |
5206 | continue; | |
5207 | } | |
5208 | ||
c493b09b JP |
5209 | if (!devlink->ops->info_get) { |
5210 | idx++; | |
5211 | continue; | |
5212 | } | |
5213 | ||
f9cf2288 JK |
5214 | mutex_lock(&devlink->lock); |
5215 | err = devlink_nl_info_fill(msg, devlink, DEVLINK_CMD_INFO_GET, | |
5216 | NETLINK_CB(cb->skb).portid, | |
5217 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
5218 | cb->extack); | |
5219 | mutex_unlock(&devlink->lock); | |
82274d07 JK |
5220 | if (err == -EOPNOTSUPP) |
5221 | err = 0; | |
5222 | else if (err) | |
f9cf2288 JK |
5223 | break; |
5224 | idx++; | |
5225 | } | |
5226 | mutex_unlock(&devlink_mutex); | |
5227 | ||
c62c2cfb JP |
5228 | if (err != -EMSGSIZE) |
5229 | return err; | |
5230 | ||
f9cf2288 JK |
5231 | cb->args[0] = idx; |
5232 | return msg->len; | |
5233 | } | |
5234 | ||
1db64e87 EBE |
5235 | struct devlink_fmsg_item { |
5236 | struct list_head list; | |
5237 | int attrtype; | |
5238 | u8 nla_type; | |
5239 | u16 len; | |
d2afb41a | 5240 | int value[]; |
1db64e87 EBE |
5241 | }; |
5242 | ||
5243 | struct devlink_fmsg { | |
5244 | struct list_head item_list; | |
573ed90a AL |
5245 | bool putting_binary; /* This flag forces enclosing of binary data |
5246 | * in an array brackets. It forces using | |
5247 | * of designated API: | |
5248 | * devlink_fmsg_binary_pair_nest_start() | |
5249 | * devlink_fmsg_binary_pair_nest_end() | |
5250 | */ | |
1db64e87 EBE |
5251 | }; |
5252 | ||
5253 | static struct devlink_fmsg *devlink_fmsg_alloc(void) | |
5254 | { | |
5255 | struct devlink_fmsg *fmsg; | |
5256 | ||
5257 | fmsg = kzalloc(sizeof(*fmsg), GFP_KERNEL); | |
5258 | if (!fmsg) | |
5259 | return NULL; | |
5260 | ||
5261 | INIT_LIST_HEAD(&fmsg->item_list); | |
5262 | ||
5263 | return fmsg; | |
5264 | } | |
5265 | ||
5266 | static void devlink_fmsg_free(struct devlink_fmsg *fmsg) | |
5267 | { | |
5268 | struct devlink_fmsg_item *item, *tmp; | |
5269 | ||
5270 | list_for_each_entry_safe(item, tmp, &fmsg->item_list, list) { | |
5271 | list_del(&item->list); | |
5272 | kfree(item); | |
5273 | } | |
5274 | kfree(fmsg); | |
5275 | } | |
5276 | ||
5277 | static int devlink_fmsg_nest_common(struct devlink_fmsg *fmsg, | |
5278 | int attrtype) | |
5279 | { | |
5280 | struct devlink_fmsg_item *item; | |
5281 | ||
5282 | item = kzalloc(sizeof(*item), GFP_KERNEL); | |
5283 | if (!item) | |
5284 | return -ENOMEM; | |
5285 | ||
5286 | item->attrtype = attrtype; | |
5287 | list_add_tail(&item->list, &fmsg->item_list); | |
5288 | ||
5289 | return 0; | |
5290 | } | |
5291 | ||
5292 | int devlink_fmsg_obj_nest_start(struct devlink_fmsg *fmsg) | |
5293 | { | |
573ed90a AL |
5294 | if (fmsg->putting_binary) |
5295 | return -EINVAL; | |
5296 | ||
1db64e87 EBE |
5297 | return devlink_fmsg_nest_common(fmsg, DEVLINK_ATTR_FMSG_OBJ_NEST_START); |
5298 | } | |
5299 | EXPORT_SYMBOL_GPL(devlink_fmsg_obj_nest_start); | |
5300 | ||
5301 | static int devlink_fmsg_nest_end(struct devlink_fmsg *fmsg) | |
5302 | { | |
573ed90a AL |
5303 | if (fmsg->putting_binary) |
5304 | return -EINVAL; | |
5305 | ||
1db64e87 EBE |
5306 | return devlink_fmsg_nest_common(fmsg, DEVLINK_ATTR_FMSG_NEST_END); |
5307 | } | |
5308 | ||
5309 | int devlink_fmsg_obj_nest_end(struct devlink_fmsg *fmsg) | |
5310 | { | |
573ed90a AL |
5311 | if (fmsg->putting_binary) |
5312 | return -EINVAL; | |
5313 | ||
1db64e87 EBE |
5314 | return devlink_fmsg_nest_end(fmsg); |
5315 | } | |
5316 | EXPORT_SYMBOL_GPL(devlink_fmsg_obj_nest_end); | |
5317 | ||
5318 | #define DEVLINK_FMSG_MAX_SIZE (GENLMSG_DEFAULT_SIZE - GENL_HDRLEN - NLA_HDRLEN) | |
5319 | ||
5320 | static int devlink_fmsg_put_name(struct devlink_fmsg *fmsg, const char *name) | |
5321 | { | |
5322 | struct devlink_fmsg_item *item; | |
5323 | ||
573ed90a AL |
5324 | if (fmsg->putting_binary) |
5325 | return -EINVAL; | |
5326 | ||
1db64e87 EBE |
5327 | if (strlen(name) + 1 > DEVLINK_FMSG_MAX_SIZE) |
5328 | return -EMSGSIZE; | |
5329 | ||
5330 | item = kzalloc(sizeof(*item) + strlen(name) + 1, GFP_KERNEL); | |
5331 | if (!item) | |
5332 | return -ENOMEM; | |
5333 | ||
5334 | item->nla_type = NLA_NUL_STRING; | |
5335 | item->len = strlen(name) + 1; | |
5336 | item->attrtype = DEVLINK_ATTR_FMSG_OBJ_NAME; | |
5337 | memcpy(&item->value, name, item->len); | |
5338 | list_add_tail(&item->list, &fmsg->item_list); | |
5339 | ||
5340 | return 0; | |
5341 | } | |
5342 | ||
5343 | int devlink_fmsg_pair_nest_start(struct devlink_fmsg *fmsg, const char *name) | |
5344 | { | |
5345 | int err; | |
5346 | ||
573ed90a AL |
5347 | if (fmsg->putting_binary) |
5348 | return -EINVAL; | |
5349 | ||
1db64e87 EBE |
5350 | err = devlink_fmsg_nest_common(fmsg, DEVLINK_ATTR_FMSG_PAIR_NEST_START); |
5351 | if (err) | |
5352 | return err; | |
5353 | ||
5354 | err = devlink_fmsg_put_name(fmsg, name); | |
5355 | if (err) | |
5356 | return err; | |
5357 | ||
5358 | return 0; | |
5359 | } | |
5360 | EXPORT_SYMBOL_GPL(devlink_fmsg_pair_nest_start); | |
5361 | ||
5362 | int devlink_fmsg_pair_nest_end(struct devlink_fmsg *fmsg) | |
5363 | { | |
573ed90a AL |
5364 | if (fmsg->putting_binary) |
5365 | return -EINVAL; | |
5366 | ||
1db64e87 EBE |
5367 | return devlink_fmsg_nest_end(fmsg); |
5368 | } | |
5369 | EXPORT_SYMBOL_GPL(devlink_fmsg_pair_nest_end); | |
5370 | ||
5371 | int devlink_fmsg_arr_pair_nest_start(struct devlink_fmsg *fmsg, | |
5372 | const char *name) | |
5373 | { | |
5374 | int err; | |
5375 | ||
573ed90a AL |
5376 | if (fmsg->putting_binary) |
5377 | return -EINVAL; | |
5378 | ||
1db64e87 EBE |
5379 | err = devlink_fmsg_pair_nest_start(fmsg, name); |
5380 | if (err) | |
5381 | return err; | |
5382 | ||
5383 | err = devlink_fmsg_nest_common(fmsg, DEVLINK_ATTR_FMSG_ARR_NEST_START); | |
5384 | if (err) | |
5385 | return err; | |
5386 | ||
5387 | return 0; | |
5388 | } | |
5389 | EXPORT_SYMBOL_GPL(devlink_fmsg_arr_pair_nest_start); | |
5390 | ||
5391 | int devlink_fmsg_arr_pair_nest_end(struct devlink_fmsg *fmsg) | |
5392 | { | |
5393 | int err; | |
5394 | ||
573ed90a AL |
5395 | if (fmsg->putting_binary) |
5396 | return -EINVAL; | |
5397 | ||
1db64e87 EBE |
5398 | err = devlink_fmsg_nest_end(fmsg); |
5399 | if (err) | |
5400 | return err; | |
5401 | ||
5402 | err = devlink_fmsg_nest_end(fmsg); | |
5403 | if (err) | |
5404 | return err; | |
5405 | ||
5406 | return 0; | |
5407 | } | |
5408 | EXPORT_SYMBOL_GPL(devlink_fmsg_arr_pair_nest_end); | |
5409 | ||
573ed90a AL |
5410 | int devlink_fmsg_binary_pair_nest_start(struct devlink_fmsg *fmsg, |
5411 | const char *name) | |
5412 | { | |
5413 | int err; | |
5414 | ||
5415 | err = devlink_fmsg_arr_pair_nest_start(fmsg, name); | |
5416 | if (err) | |
5417 | return err; | |
5418 | ||
5419 | fmsg->putting_binary = true; | |
5420 | return err; | |
5421 | } | |
5422 | EXPORT_SYMBOL_GPL(devlink_fmsg_binary_pair_nest_start); | |
5423 | ||
5424 | int devlink_fmsg_binary_pair_nest_end(struct devlink_fmsg *fmsg) | |
5425 | { | |
5426 | if (!fmsg->putting_binary) | |
5427 | return -EINVAL; | |
5428 | ||
5429 | fmsg->putting_binary = false; | |
5430 | return devlink_fmsg_arr_pair_nest_end(fmsg); | |
5431 | } | |
5432 | EXPORT_SYMBOL_GPL(devlink_fmsg_binary_pair_nest_end); | |
5433 | ||
1db64e87 EBE |
5434 | static int devlink_fmsg_put_value(struct devlink_fmsg *fmsg, |
5435 | const void *value, u16 value_len, | |
5436 | u8 value_nla_type) | |
5437 | { | |
5438 | struct devlink_fmsg_item *item; | |
5439 | ||
5440 | if (value_len > DEVLINK_FMSG_MAX_SIZE) | |
5441 | return -EMSGSIZE; | |
5442 | ||
5443 | item = kzalloc(sizeof(*item) + value_len, GFP_KERNEL); | |
5444 | if (!item) | |
5445 | return -ENOMEM; | |
5446 | ||
5447 | item->nla_type = value_nla_type; | |
5448 | item->len = value_len; | |
5449 | item->attrtype = DEVLINK_ATTR_FMSG_OBJ_VALUE_DATA; | |
5450 | memcpy(&item->value, value, item->len); | |
5451 | list_add_tail(&item->list, &fmsg->item_list); | |
5452 | ||
5453 | return 0; | |
5454 | } | |
5455 | ||
5456 | int devlink_fmsg_bool_put(struct devlink_fmsg *fmsg, bool value) | |
5457 | { | |
573ed90a AL |
5458 | if (fmsg->putting_binary) |
5459 | return -EINVAL; | |
5460 | ||
1db64e87 EBE |
5461 | return devlink_fmsg_put_value(fmsg, &value, sizeof(value), NLA_FLAG); |
5462 | } | |
5463 | EXPORT_SYMBOL_GPL(devlink_fmsg_bool_put); | |
5464 | ||
5465 | int devlink_fmsg_u8_put(struct devlink_fmsg *fmsg, u8 value) | |
5466 | { | |
573ed90a AL |
5467 | if (fmsg->putting_binary) |
5468 | return -EINVAL; | |
5469 | ||
1db64e87 EBE |
5470 | return devlink_fmsg_put_value(fmsg, &value, sizeof(value), NLA_U8); |
5471 | } | |
5472 | EXPORT_SYMBOL_GPL(devlink_fmsg_u8_put); | |
5473 | ||
5474 | int devlink_fmsg_u32_put(struct devlink_fmsg *fmsg, u32 value) | |
5475 | { | |
573ed90a AL |
5476 | if (fmsg->putting_binary) |
5477 | return -EINVAL; | |
5478 | ||
1db64e87 EBE |
5479 | return devlink_fmsg_put_value(fmsg, &value, sizeof(value), NLA_U32); |
5480 | } | |
5481 | EXPORT_SYMBOL_GPL(devlink_fmsg_u32_put); | |
5482 | ||
5483 | int devlink_fmsg_u64_put(struct devlink_fmsg *fmsg, u64 value) | |
5484 | { | |
573ed90a AL |
5485 | if (fmsg->putting_binary) |
5486 | return -EINVAL; | |
5487 | ||
1db64e87 EBE |
5488 | return devlink_fmsg_put_value(fmsg, &value, sizeof(value), NLA_U64); |
5489 | } | |
5490 | EXPORT_SYMBOL_GPL(devlink_fmsg_u64_put); | |
5491 | ||
5492 | int devlink_fmsg_string_put(struct devlink_fmsg *fmsg, const char *value) | |
5493 | { | |
573ed90a AL |
5494 | if (fmsg->putting_binary) |
5495 | return -EINVAL; | |
5496 | ||
1db64e87 EBE |
5497 | return devlink_fmsg_put_value(fmsg, value, strlen(value) + 1, |
5498 | NLA_NUL_STRING); | |
5499 | } | |
5500 | EXPORT_SYMBOL_GPL(devlink_fmsg_string_put); | |
5501 | ||
573ed90a AL |
5502 | int devlink_fmsg_binary_put(struct devlink_fmsg *fmsg, const void *value, |
5503 | u16 value_len) | |
1db64e87 | 5504 | { |
573ed90a AL |
5505 | if (!fmsg->putting_binary) |
5506 | return -EINVAL; | |
5507 | ||
1db64e87 EBE |
5508 | return devlink_fmsg_put_value(fmsg, value, value_len, NLA_BINARY); |
5509 | } | |
573ed90a | 5510 | EXPORT_SYMBOL_GPL(devlink_fmsg_binary_put); |
1db64e87 EBE |
5511 | |
5512 | int devlink_fmsg_bool_pair_put(struct devlink_fmsg *fmsg, const char *name, | |
5513 | bool value) | |
5514 | { | |
5515 | int err; | |
5516 | ||
5517 | err = devlink_fmsg_pair_nest_start(fmsg, name); | |
5518 | if (err) | |
5519 | return err; | |
5520 | ||
5521 | err = devlink_fmsg_bool_put(fmsg, value); | |
5522 | if (err) | |
5523 | return err; | |
5524 | ||
5525 | err = devlink_fmsg_pair_nest_end(fmsg); | |
5526 | if (err) | |
5527 | return err; | |
5528 | ||
5529 | return 0; | |
5530 | } | |
5531 | EXPORT_SYMBOL_GPL(devlink_fmsg_bool_pair_put); | |
5532 | ||
5533 | int devlink_fmsg_u8_pair_put(struct devlink_fmsg *fmsg, const char *name, | |
5534 | u8 value) | |
5535 | { | |
5536 | int err; | |
5537 | ||
5538 | err = devlink_fmsg_pair_nest_start(fmsg, name); | |
5539 | if (err) | |
5540 | return err; | |
5541 | ||
5542 | err = devlink_fmsg_u8_put(fmsg, value); | |
5543 | if (err) | |
5544 | return err; | |
5545 | ||
5546 | err = devlink_fmsg_pair_nest_end(fmsg); | |
5547 | if (err) | |
5548 | return err; | |
5549 | ||
5550 | return 0; | |
5551 | } | |
5552 | EXPORT_SYMBOL_GPL(devlink_fmsg_u8_pair_put); | |
5553 | ||
5554 | int devlink_fmsg_u32_pair_put(struct devlink_fmsg *fmsg, const char *name, | |
5555 | u32 value) | |
5556 | { | |
5557 | int err; | |
5558 | ||
5559 | err = devlink_fmsg_pair_nest_start(fmsg, name); | |
5560 | if (err) | |
5561 | return err; | |
5562 | ||
5563 | err = devlink_fmsg_u32_put(fmsg, value); | |
5564 | if (err) | |
5565 | return err; | |
5566 | ||
5567 | err = devlink_fmsg_pair_nest_end(fmsg); | |
5568 | if (err) | |
5569 | return err; | |
5570 | ||
5571 | return 0; | |
5572 | } | |
5573 | EXPORT_SYMBOL_GPL(devlink_fmsg_u32_pair_put); | |
5574 | ||
5575 | int devlink_fmsg_u64_pair_put(struct devlink_fmsg *fmsg, const char *name, | |
5576 | u64 value) | |
5577 | { | |
5578 | int err; | |
5579 | ||
5580 | err = devlink_fmsg_pair_nest_start(fmsg, name); | |
5581 | if (err) | |
5582 | return err; | |
5583 | ||
5584 | err = devlink_fmsg_u64_put(fmsg, value); | |
5585 | if (err) | |
5586 | return err; | |
5587 | ||
5588 | err = devlink_fmsg_pair_nest_end(fmsg); | |
5589 | if (err) | |
5590 | return err; | |
5591 | ||
5592 | return 0; | |
5593 | } | |
5594 | EXPORT_SYMBOL_GPL(devlink_fmsg_u64_pair_put); | |
5595 | ||
5596 | int devlink_fmsg_string_pair_put(struct devlink_fmsg *fmsg, const char *name, | |
5597 | const char *value) | |
5598 | { | |
5599 | int err; | |
5600 | ||
5601 | err = devlink_fmsg_pair_nest_start(fmsg, name); | |
5602 | if (err) | |
5603 | return err; | |
5604 | ||
5605 | err = devlink_fmsg_string_put(fmsg, value); | |
5606 | if (err) | |
5607 | return err; | |
5608 | ||
5609 | err = devlink_fmsg_pair_nest_end(fmsg); | |
5610 | if (err) | |
5611 | return err; | |
5612 | ||
5613 | return 0; | |
5614 | } | |
5615 | EXPORT_SYMBOL_GPL(devlink_fmsg_string_pair_put); | |
5616 | ||
5617 | int devlink_fmsg_binary_pair_put(struct devlink_fmsg *fmsg, const char *name, | |
e2cde864 | 5618 | const void *value, u32 value_len) |
1db64e87 | 5619 | { |
e2cde864 | 5620 | u32 data_size; |
573ed90a | 5621 | int end_err; |
e2cde864 | 5622 | u32 offset; |
1db64e87 EBE |
5623 | int err; |
5624 | ||
573ed90a | 5625 | err = devlink_fmsg_binary_pair_nest_start(fmsg, name); |
1db64e87 EBE |
5626 | if (err) |
5627 | return err; | |
5628 | ||
e2cde864 AL |
5629 | for (offset = 0; offset < value_len; offset += data_size) { |
5630 | data_size = value_len - offset; | |
5631 | if (data_size > DEVLINK_FMSG_MAX_SIZE) | |
5632 | data_size = DEVLINK_FMSG_MAX_SIZE; | |
5633 | err = devlink_fmsg_binary_put(fmsg, value + offset, data_size); | |
5634 | if (err) | |
573ed90a AL |
5635 | break; |
5636 | /* Exit from loop with a break (instead of | |
5637 | * return) to make sure putting_binary is turned off in | |
5638 | * devlink_fmsg_binary_pair_nest_end | |
5639 | */ | |
e2cde864 | 5640 | } |
1db64e87 | 5641 | |
573ed90a AL |
5642 | end_err = devlink_fmsg_binary_pair_nest_end(fmsg); |
5643 | if (end_err) | |
5644 | err = end_err; | |
1db64e87 | 5645 | |
573ed90a | 5646 | return err; |
1db64e87 EBE |
5647 | } |
5648 | EXPORT_SYMBOL_GPL(devlink_fmsg_binary_pair_put); | |
5649 | ||
5650 | static int | |
5651 | devlink_fmsg_item_fill_type(struct devlink_fmsg_item *msg, struct sk_buff *skb) | |
5652 | { | |
5653 | switch (msg->nla_type) { | |
5654 | case NLA_FLAG: | |
5655 | case NLA_U8: | |
5656 | case NLA_U32: | |
5657 | case NLA_U64: | |
5658 | case NLA_NUL_STRING: | |
5659 | case NLA_BINARY: | |
5660 | return nla_put_u8(skb, DEVLINK_ATTR_FMSG_OBJ_VALUE_TYPE, | |
5661 | msg->nla_type); | |
5662 | default: | |
5663 | return -EINVAL; | |
5664 | } | |
5665 | } | |
5666 | ||
5667 | static int | |
5668 | devlink_fmsg_item_fill_data(struct devlink_fmsg_item *msg, struct sk_buff *skb) | |
5669 | { | |
5670 | int attrtype = DEVLINK_ATTR_FMSG_OBJ_VALUE_DATA; | |
5671 | u8 tmp; | |
5672 | ||
5673 | switch (msg->nla_type) { | |
5674 | case NLA_FLAG: | |
5675 | /* Always provide flag data, regardless of its value */ | |
5676 | tmp = *(bool *) msg->value; | |
5677 | ||
5678 | return nla_put_u8(skb, attrtype, tmp); | |
5679 | case NLA_U8: | |
5680 | return nla_put_u8(skb, attrtype, *(u8 *) msg->value); | |
5681 | case NLA_U32: | |
5682 | return nla_put_u32(skb, attrtype, *(u32 *) msg->value); | |
5683 | case NLA_U64: | |
5684 | return nla_put_u64_64bit(skb, attrtype, *(u64 *) msg->value, | |
5685 | DEVLINK_ATTR_PAD); | |
5686 | case NLA_NUL_STRING: | |
5687 | return nla_put_string(skb, attrtype, (char *) &msg->value); | |
5688 | case NLA_BINARY: | |
5689 | return nla_put(skb, attrtype, msg->len, (void *) &msg->value); | |
5690 | default: | |
5691 | return -EINVAL; | |
5692 | } | |
5693 | } | |
5694 | ||
5695 | static int | |
5696 | devlink_fmsg_prepare_skb(struct devlink_fmsg *fmsg, struct sk_buff *skb, | |
5697 | int *start) | |
5698 | { | |
5699 | struct devlink_fmsg_item *item; | |
5700 | struct nlattr *fmsg_nlattr; | |
5701 | int i = 0; | |
5702 | int err; | |
5703 | ||
ae0be8de | 5704 | fmsg_nlattr = nla_nest_start_noflag(skb, DEVLINK_ATTR_FMSG); |
1db64e87 EBE |
5705 | if (!fmsg_nlattr) |
5706 | return -EMSGSIZE; | |
5707 | ||
5708 | list_for_each_entry(item, &fmsg->item_list, list) { | |
5709 | if (i < *start) { | |
5710 | i++; | |
5711 | continue; | |
5712 | } | |
5713 | ||
5714 | switch (item->attrtype) { | |
5715 | case DEVLINK_ATTR_FMSG_OBJ_NEST_START: | |
5716 | case DEVLINK_ATTR_FMSG_PAIR_NEST_START: | |
5717 | case DEVLINK_ATTR_FMSG_ARR_NEST_START: | |
5718 | case DEVLINK_ATTR_FMSG_NEST_END: | |
5719 | err = nla_put_flag(skb, item->attrtype); | |
5720 | break; | |
5721 | case DEVLINK_ATTR_FMSG_OBJ_VALUE_DATA: | |
5722 | err = devlink_fmsg_item_fill_type(item, skb); | |
5723 | if (err) | |
5724 | break; | |
5725 | err = devlink_fmsg_item_fill_data(item, skb); | |
5726 | break; | |
5727 | case DEVLINK_ATTR_FMSG_OBJ_NAME: | |
5728 | err = nla_put_string(skb, item->attrtype, | |
5729 | (char *) &item->value); | |
5730 | break; | |
5731 | default: | |
5732 | err = -EINVAL; | |
5733 | break; | |
5734 | } | |
5735 | if (!err) | |
5736 | *start = ++i; | |
5737 | else | |
5738 | break; | |
5739 | } | |
5740 | ||
5741 | nla_nest_end(skb, fmsg_nlattr); | |
5742 | return err; | |
5743 | } | |
5744 | ||
5745 | static int devlink_fmsg_snd(struct devlink_fmsg *fmsg, | |
5746 | struct genl_info *info, | |
5747 | enum devlink_command cmd, int flags) | |
5748 | { | |
5749 | struct nlmsghdr *nlh; | |
5750 | struct sk_buff *skb; | |
5751 | bool last = false; | |
5752 | int index = 0; | |
5753 | void *hdr; | |
5754 | int err; | |
5755 | ||
5756 | while (!last) { | |
5757 | int tmp_index = index; | |
5758 | ||
5759 | skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
5760 | if (!skb) | |
5761 | return -ENOMEM; | |
5762 | ||
5763 | hdr = genlmsg_put(skb, info->snd_portid, info->snd_seq, | |
5764 | &devlink_nl_family, flags | NLM_F_MULTI, cmd); | |
5765 | if (!hdr) { | |
5766 | err = -EMSGSIZE; | |
5767 | goto nla_put_failure; | |
5768 | } | |
5769 | ||
5770 | err = devlink_fmsg_prepare_skb(fmsg, skb, &index); | |
5771 | if (!err) | |
5772 | last = true; | |
5773 | else if (err != -EMSGSIZE || tmp_index == index) | |
5774 | goto nla_put_failure; | |
5775 | ||
5776 | genlmsg_end(skb, hdr); | |
5777 | err = genlmsg_reply(skb, info); | |
5778 | if (err) | |
5779 | return err; | |
5780 | } | |
5781 | ||
5782 | skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
5783 | if (!skb) | |
5784 | return -ENOMEM; | |
5785 | nlh = nlmsg_put(skb, info->snd_portid, info->snd_seq, | |
5786 | NLMSG_DONE, 0, flags | NLM_F_MULTI); | |
5787 | if (!nlh) { | |
5788 | err = -EMSGSIZE; | |
5789 | goto nla_put_failure; | |
5790 | } | |
1db64e87 | 5791 | |
fde55ea7 | 5792 | return genlmsg_reply(skb, info); |
1db64e87 EBE |
5793 | |
5794 | nla_put_failure: | |
5795 | nlmsg_free(skb); | |
5796 | return err; | |
5797 | } | |
5798 | ||
e44ef4e4 AL |
5799 | static int devlink_fmsg_dumpit(struct devlink_fmsg *fmsg, struct sk_buff *skb, |
5800 | struct netlink_callback *cb, | |
5801 | enum devlink_command cmd) | |
5802 | { | |
5803 | int index = cb->args[0]; | |
5804 | int tmp_index = index; | |
5805 | void *hdr; | |
5806 | int err; | |
5807 | ||
5808 | hdr = genlmsg_put(skb, NETLINK_CB(cb->skb).portid, cb->nlh->nlmsg_seq, | |
5809 | &devlink_nl_family, NLM_F_ACK | NLM_F_MULTI, cmd); | |
5810 | if (!hdr) { | |
5811 | err = -EMSGSIZE; | |
5812 | goto nla_put_failure; | |
5813 | } | |
5814 | ||
5815 | err = devlink_fmsg_prepare_skb(fmsg, skb, &index); | |
5816 | if ((err && err != -EMSGSIZE) || tmp_index == index) | |
5817 | goto nla_put_failure; | |
5818 | ||
5819 | cb->args[0] = index; | |
5820 | genlmsg_end(skb, hdr); | |
5821 | return skb->len; | |
5822 | ||
5823 | nla_put_failure: | |
5824 | genlmsg_cancel(skb, hdr); | |
5825 | return err; | |
5826 | } | |
5827 | ||
a0bdcc59 EBE |
5828 | struct devlink_health_reporter { |
5829 | struct list_head list; | |
5830 | void *priv; | |
5831 | const struct devlink_health_reporter_ops *ops; | |
5832 | struct devlink *devlink; | |
f4f54166 | 5833 | struct devlink_port *devlink_port; |
c8e1da0b EBE |
5834 | struct devlink_fmsg *dump_fmsg; |
5835 | struct mutex dump_lock; /* lock parallel read/write from dump buffers */ | |
a0bdcc59 EBE |
5836 | u64 graceful_period; |
5837 | bool auto_recover; | |
48bb52c8 | 5838 | bool auto_dump; |
a0bdcc59 | 5839 | u8 health_state; |
c8e1da0b | 5840 | u64 dump_ts; |
d279505b | 5841 | u64 dump_real_ts; |
c8e1da0b EBE |
5842 | u64 error_count; |
5843 | u64 recovery_count; | |
5844 | u64 last_recovery_ts; | |
b587bdaf | 5845 | refcount_t refcount; |
c8e1da0b EBE |
5846 | }; |
5847 | ||
a0bdcc59 EBE |
5848 | void * |
5849 | devlink_health_reporter_priv(struct devlink_health_reporter *reporter) | |
5850 | { | |
5851 | return reporter->priv; | |
5852 | } | |
5853 | EXPORT_SYMBOL_GPL(devlink_health_reporter_priv); | |
5854 | ||
5855 | static struct devlink_health_reporter * | |
bd821005 VT |
5856 | __devlink_health_reporter_find_by_name(struct list_head *reporter_list, |
5857 | struct mutex *list_lock, | |
5858 | const char *reporter_name) | |
a0bdcc59 EBE |
5859 | { |
5860 | struct devlink_health_reporter *reporter; | |
5861 | ||
bd821005 VT |
5862 | lockdep_assert_held(list_lock); |
5863 | list_for_each_entry(reporter, reporter_list, list) | |
a0bdcc59 EBE |
5864 | if (!strcmp(reporter->ops->name, reporter_name)) |
5865 | return reporter; | |
5866 | return NULL; | |
5867 | } | |
5868 | ||
bd821005 VT |
5869 | static struct devlink_health_reporter * |
5870 | devlink_health_reporter_find_by_name(struct devlink *devlink, | |
5871 | const char *reporter_name) | |
5872 | { | |
5873 | return __devlink_health_reporter_find_by_name(&devlink->reporter_list, | |
5874 | &devlink->reporters_lock, | |
5875 | reporter_name); | |
5876 | } | |
5877 | ||
f4f54166 VT |
5878 | static struct devlink_health_reporter * |
5879 | devlink_port_health_reporter_find_by_name(struct devlink_port *devlink_port, | |
5880 | const char *reporter_name) | |
5881 | { | |
5882 | return __devlink_health_reporter_find_by_name(&devlink_port->reporter_list, | |
5883 | &devlink_port->reporters_lock, | |
5884 | reporter_name); | |
5885 | } | |
5886 | ||
c57544b3 VT |
5887 | static struct devlink_health_reporter * |
5888 | __devlink_health_reporter_create(struct devlink *devlink, | |
5889 | const struct devlink_health_reporter_ops *ops, | |
5890 | u64 graceful_period, void *priv) | |
5891 | { | |
5892 | struct devlink_health_reporter *reporter; | |
5893 | ||
5894 | if (WARN_ON(graceful_period && !ops->recover)) | |
5895 | return ERR_PTR(-EINVAL); | |
5896 | ||
5897 | reporter = kzalloc(sizeof(*reporter), GFP_KERNEL); | |
5898 | if (!reporter) | |
5899 | return ERR_PTR(-ENOMEM); | |
5900 | ||
5901 | reporter->priv = priv; | |
5902 | reporter->ops = ops; | |
5903 | reporter->devlink = devlink; | |
5904 | reporter->graceful_period = graceful_period; | |
5905 | reporter->auto_recover = !!ops->recover; | |
5906 | reporter->auto_dump = !!ops->dump; | |
5907 | mutex_init(&reporter->dump_lock); | |
5908 | refcount_set(&reporter->refcount, 1); | |
5909 | return reporter; | |
5910 | } | |
5911 | ||
15c724b9 VT |
5912 | /** |
5913 | * devlink_port_health_reporter_create - create devlink health reporter for | |
5914 | * specified port instance | |
5915 | * | |
5916 | * @port: devlink_port which should contain the new reporter | |
5917 | * @ops: ops | |
5918 | * @graceful_period: to avoid recovery loops, in msecs | |
5919 | * @priv: priv | |
5920 | */ | |
5921 | struct devlink_health_reporter * | |
5922 | devlink_port_health_reporter_create(struct devlink_port *port, | |
5923 | const struct devlink_health_reporter_ops *ops, | |
5924 | u64 graceful_period, void *priv) | |
5925 | { | |
5926 | struct devlink_health_reporter *reporter; | |
5927 | ||
5928 | mutex_lock(&port->reporters_lock); | |
5929 | if (__devlink_health_reporter_find_by_name(&port->reporter_list, | |
5930 | &port->reporters_lock, ops->name)) { | |
5931 | reporter = ERR_PTR(-EEXIST); | |
5932 | goto unlock; | |
5933 | } | |
5934 | ||
5935 | reporter = __devlink_health_reporter_create(port->devlink, ops, | |
5936 | graceful_period, priv); | |
5937 | if (IS_ERR(reporter)) | |
5938 | goto unlock; | |
5939 | ||
5940 | reporter->devlink_port = port; | |
5941 | list_add_tail(&reporter->list, &port->reporter_list); | |
5942 | unlock: | |
5943 | mutex_unlock(&port->reporters_lock); | |
5944 | return reporter; | |
5945 | } | |
5946 | EXPORT_SYMBOL_GPL(devlink_port_health_reporter_create); | |
5947 | ||
a0bdcc59 EBE |
5948 | /** |
5949 | * devlink_health_reporter_create - create devlink health reporter | |
5950 | * | |
5951 | * @devlink: devlink | |
5952 | * @ops: ops | |
5953 | * @graceful_period: to avoid recovery loops, in msecs | |
a0bdcc59 EBE |
5954 | * @priv: priv |
5955 | */ | |
5956 | struct devlink_health_reporter * | |
5957 | devlink_health_reporter_create(struct devlink *devlink, | |
5958 | const struct devlink_health_reporter_ops *ops, | |
ba7d16c7 | 5959 | u64 graceful_period, void *priv) |
a0bdcc59 EBE |
5960 | { |
5961 | struct devlink_health_reporter *reporter; | |
5962 | ||
b587bdaf | 5963 | mutex_lock(&devlink->reporters_lock); |
a0bdcc59 EBE |
5964 | if (devlink_health_reporter_find_by_name(devlink, ops->name)) { |
5965 | reporter = ERR_PTR(-EEXIST); | |
5966 | goto unlock; | |
5967 | } | |
5968 | ||
c57544b3 VT |
5969 | reporter = __devlink_health_reporter_create(devlink, ops, |
5970 | graceful_period, priv); | |
5971 | if (IS_ERR(reporter)) | |
a0bdcc59 | 5972 | goto unlock; |
a0bdcc59 | 5973 | |
a0bdcc59 EBE |
5974 | list_add_tail(&reporter->list, &devlink->reporter_list); |
5975 | unlock: | |
b587bdaf | 5976 | mutex_unlock(&devlink->reporters_lock); |
a0bdcc59 EBE |
5977 | return reporter; |
5978 | } | |
5979 | EXPORT_SYMBOL_GPL(devlink_health_reporter_create); | |
5980 | ||
3c5584bf VT |
5981 | static void |
5982 | devlink_health_reporter_free(struct devlink_health_reporter *reporter) | |
5983 | { | |
5984 | mutex_destroy(&reporter->dump_lock); | |
5985 | if (reporter->dump_fmsg) | |
5986 | devlink_fmsg_free(reporter->dump_fmsg); | |
5987 | kfree(reporter); | |
5988 | } | |
5989 | ||
5990 | static void | |
5991 | devlink_health_reporter_put(struct devlink_health_reporter *reporter) | |
5992 | { | |
5993 | if (refcount_dec_and_test(&reporter->refcount)) | |
5994 | devlink_health_reporter_free(reporter); | |
5995 | } | |
5996 | ||
5997 | static void | |
5998 | __devlink_health_reporter_destroy(struct devlink_health_reporter *reporter) | |
5999 | { | |
6000 | list_del(&reporter->list); | |
6001 | devlink_health_reporter_put(reporter); | |
6002 | } | |
6003 | ||
a0bdcc59 EBE |
6004 | /** |
6005 | * devlink_health_reporter_destroy - destroy devlink health reporter | |
6006 | * | |
6007 | * @reporter: devlink health reporter to destroy | |
6008 | */ | |
6009 | void | |
6010 | devlink_health_reporter_destroy(struct devlink_health_reporter *reporter) | |
6011 | { | |
5d037b4d IS |
6012 | struct mutex *lock = &reporter->devlink->reporters_lock; |
6013 | ||
6014 | mutex_lock(lock); | |
3c5584bf | 6015 | __devlink_health_reporter_destroy(reporter); |
5d037b4d | 6016 | mutex_unlock(lock); |
a0bdcc59 EBE |
6017 | } |
6018 | EXPORT_SYMBOL_GPL(devlink_health_reporter_destroy); | |
6019 | ||
15c724b9 VT |
6020 | /** |
6021 | * devlink_port_health_reporter_destroy - destroy devlink port health reporter | |
6022 | * | |
6023 | * @reporter: devlink health reporter to destroy | |
6024 | */ | |
6025 | void | |
6026 | devlink_port_health_reporter_destroy(struct devlink_health_reporter *reporter) | |
6027 | { | |
5d037b4d IS |
6028 | struct mutex *lock = &reporter->devlink_port->reporters_lock; |
6029 | ||
6030 | mutex_lock(lock); | |
15c724b9 | 6031 | __devlink_health_reporter_destroy(reporter); |
5d037b4d | 6032 | mutex_unlock(lock); |
15c724b9 VT |
6033 | } |
6034 | EXPORT_SYMBOL_GPL(devlink_port_health_reporter_destroy); | |
6035 | ||
6ec8b6cd MS |
6036 | static int |
6037 | devlink_nl_health_reporter_fill(struct sk_buff *msg, | |
6038 | struct devlink *devlink, | |
6039 | struct devlink_health_reporter *reporter, | |
6040 | enum devlink_command cmd, u32 portid, | |
6041 | u32 seq, int flags) | |
6042 | { | |
6043 | struct nlattr *reporter_attr; | |
6044 | void *hdr; | |
6045 | ||
6046 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
6047 | if (!hdr) | |
6048 | return -EMSGSIZE; | |
6049 | ||
6050 | if (devlink_nl_put_handle(msg, devlink)) | |
6051 | goto genlmsg_cancel; | |
6052 | ||
f4f54166 VT |
6053 | if (reporter->devlink_port) { |
6054 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, reporter->devlink_port->index)) | |
6055 | goto genlmsg_cancel; | |
6056 | } | |
6ec8b6cd MS |
6057 | reporter_attr = nla_nest_start_noflag(msg, |
6058 | DEVLINK_ATTR_HEALTH_REPORTER); | |
6059 | if (!reporter_attr) | |
6060 | goto genlmsg_cancel; | |
6061 | if (nla_put_string(msg, DEVLINK_ATTR_HEALTH_REPORTER_NAME, | |
6062 | reporter->ops->name)) | |
6063 | goto reporter_nest_cancel; | |
6064 | if (nla_put_u8(msg, DEVLINK_ATTR_HEALTH_REPORTER_STATE, | |
6065 | reporter->health_state)) | |
6066 | goto reporter_nest_cancel; | |
6067 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_HEALTH_REPORTER_ERR_COUNT, | |
6068 | reporter->error_count, DEVLINK_ATTR_PAD)) | |
6069 | goto reporter_nest_cancel; | |
6070 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_HEALTH_REPORTER_RECOVER_COUNT, | |
6071 | reporter->recovery_count, DEVLINK_ATTR_PAD)) | |
6072 | goto reporter_nest_cancel; | |
6073 | if (reporter->ops->recover && | |
6074 | nla_put_u64_64bit(msg, DEVLINK_ATTR_HEALTH_REPORTER_GRACEFUL_PERIOD, | |
6075 | reporter->graceful_period, | |
6076 | DEVLINK_ATTR_PAD)) | |
6077 | goto reporter_nest_cancel; | |
6078 | if (reporter->ops->recover && | |
6079 | nla_put_u8(msg, DEVLINK_ATTR_HEALTH_REPORTER_AUTO_RECOVER, | |
6080 | reporter->auto_recover)) | |
6081 | goto reporter_nest_cancel; | |
6082 | if (reporter->dump_fmsg && | |
6083 | nla_put_u64_64bit(msg, DEVLINK_ATTR_HEALTH_REPORTER_DUMP_TS, | |
6084 | jiffies_to_msecs(reporter->dump_ts), | |
6085 | DEVLINK_ATTR_PAD)) | |
6086 | goto reporter_nest_cancel; | |
6087 | if (reporter->dump_fmsg && | |
6088 | nla_put_u64_64bit(msg, DEVLINK_ATTR_HEALTH_REPORTER_DUMP_TS_NS, | |
6089 | reporter->dump_real_ts, DEVLINK_ATTR_PAD)) | |
6090 | goto reporter_nest_cancel; | |
48bb52c8 EBE |
6091 | if (reporter->ops->dump && |
6092 | nla_put_u8(msg, DEVLINK_ATTR_HEALTH_REPORTER_AUTO_DUMP, | |
6093 | reporter->auto_dump)) | |
6094 | goto reporter_nest_cancel; | |
6ec8b6cd MS |
6095 | |
6096 | nla_nest_end(msg, reporter_attr); | |
6097 | genlmsg_end(msg, hdr); | |
6098 | return 0; | |
6099 | ||
6100 | reporter_nest_cancel: | |
6101 | nla_nest_end(msg, reporter_attr); | |
6102 | genlmsg_cancel: | |
6103 | genlmsg_cancel(msg, hdr); | |
6104 | return -EMSGSIZE; | |
6105 | } | |
6106 | ||
6107 | static void devlink_recover_notify(struct devlink_health_reporter *reporter, | |
6108 | enum devlink_command cmd) | |
6109 | { | |
6110 | struct sk_buff *msg; | |
6111 | int err; | |
6112 | ||
6113 | WARN_ON(cmd != DEVLINK_CMD_HEALTH_REPORTER_RECOVER); | |
6114 | ||
6115 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
6116 | if (!msg) | |
6117 | return; | |
6118 | ||
6119 | err = devlink_nl_health_reporter_fill(msg, reporter->devlink, | |
6120 | reporter, cmd, 0, 0, 0); | |
6121 | if (err) { | |
6122 | nlmsg_free(msg); | |
6123 | return; | |
6124 | } | |
6125 | ||
6126 | genlmsg_multicast_netns(&devlink_nl_family, | |
6127 | devlink_net(reporter->devlink), | |
6128 | msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
6129 | } | |
6130 | ||
6181e5cb VG |
6131 | void |
6132 | devlink_health_reporter_recovery_done(struct devlink_health_reporter *reporter) | |
6133 | { | |
6134 | reporter->recovery_count++; | |
6135 | reporter->last_recovery_ts = jiffies; | |
6136 | } | |
6137 | EXPORT_SYMBOL_GPL(devlink_health_reporter_recovery_done); | |
6138 | ||
c8e1da0b EBE |
6139 | static int |
6140 | devlink_health_reporter_recover(struct devlink_health_reporter *reporter, | |
e7a98105 | 6141 | void *priv_ctx, struct netlink_ext_ack *extack) |
c8e1da0b EBE |
6142 | { |
6143 | int err; | |
6144 | ||
40281820 JP |
6145 | if (reporter->health_state == DEVLINK_HEALTH_REPORTER_STATE_HEALTHY) |
6146 | return 0; | |
6147 | ||
c8e1da0b EBE |
6148 | if (!reporter->ops->recover) |
6149 | return -EOPNOTSUPP; | |
6150 | ||
e7a98105 | 6151 | err = reporter->ops->recover(reporter, priv_ctx, extack); |
c8e1da0b EBE |
6152 | if (err) |
6153 | return err; | |
6154 | ||
6181e5cb | 6155 | devlink_health_reporter_recovery_done(reporter); |
c8e1da0b | 6156 | reporter->health_state = DEVLINK_HEALTH_REPORTER_STATE_HEALTHY; |
6ec8b6cd | 6157 | devlink_recover_notify(reporter, DEVLINK_CMD_HEALTH_REPORTER_RECOVER); |
c8e1da0b EBE |
6158 | |
6159 | return 0; | |
6160 | } | |
6161 | ||
6162 | static void | |
6163 | devlink_health_dump_clear(struct devlink_health_reporter *reporter) | |
6164 | { | |
6165 | if (!reporter->dump_fmsg) | |
6166 | return; | |
6167 | devlink_fmsg_free(reporter->dump_fmsg); | |
6168 | reporter->dump_fmsg = NULL; | |
6169 | } | |
6170 | ||
6171 | static int devlink_health_do_dump(struct devlink_health_reporter *reporter, | |
e7a98105 JP |
6172 | void *priv_ctx, |
6173 | struct netlink_ext_ack *extack) | |
c8e1da0b EBE |
6174 | { |
6175 | int err; | |
6176 | ||
6177 | if (!reporter->ops->dump) | |
6178 | return 0; | |
6179 | ||
6180 | if (reporter->dump_fmsg) | |
6181 | return 0; | |
6182 | ||
6183 | reporter->dump_fmsg = devlink_fmsg_alloc(); | |
6184 | if (!reporter->dump_fmsg) { | |
6185 | err = -ENOMEM; | |
6186 | return err; | |
6187 | } | |
6188 | ||
6189 | err = devlink_fmsg_obj_nest_start(reporter->dump_fmsg); | |
6190 | if (err) | |
6191 | goto dump_err; | |
6192 | ||
6193 | err = reporter->ops->dump(reporter, reporter->dump_fmsg, | |
e7a98105 | 6194 | priv_ctx, extack); |
c8e1da0b EBE |
6195 | if (err) |
6196 | goto dump_err; | |
6197 | ||
6198 | err = devlink_fmsg_obj_nest_end(reporter->dump_fmsg); | |
6199 | if (err) | |
6200 | goto dump_err; | |
6201 | ||
6202 | reporter->dump_ts = jiffies; | |
d279505b | 6203 | reporter->dump_real_ts = ktime_get_real_ns(); |
c8e1da0b EBE |
6204 | |
6205 | return 0; | |
6206 | ||
6207 | dump_err: | |
6208 | devlink_health_dump_clear(reporter); | |
6209 | return err; | |
6210 | } | |
6211 | ||
6212 | int devlink_health_report(struct devlink_health_reporter *reporter, | |
6213 | const char *msg, void *priv_ctx) | |
6214 | { | |
a0a21adb | 6215 | enum devlink_health_reporter_state prev_health_state; |
c8e1da0b | 6216 | struct devlink *devlink = reporter->devlink; |
bea0c5c9 | 6217 | unsigned long recover_ts_threshold; |
c8e1da0b EBE |
6218 | |
6219 | /* write a log message of the current error */ | |
6220 | WARN_ON(!msg); | |
6221 | trace_devlink_health_report(devlink, reporter->ops->name, msg); | |
6222 | reporter->error_count++; | |
a0a21adb EBE |
6223 | prev_health_state = reporter->health_state; |
6224 | reporter->health_state = DEVLINK_HEALTH_REPORTER_STATE_ERROR; | |
6ec8b6cd | 6225 | devlink_recover_notify(reporter, DEVLINK_CMD_HEALTH_REPORTER_RECOVER); |
c8e1da0b EBE |
6226 | |
6227 | /* abort if the previous error wasn't recovered */ | |
bea0c5c9 AL |
6228 | recover_ts_threshold = reporter->last_recovery_ts + |
6229 | msecs_to_jiffies(reporter->graceful_period); | |
c8e1da0b | 6230 | if (reporter->auto_recover && |
a0a21adb | 6231 | (prev_health_state != DEVLINK_HEALTH_REPORTER_STATE_HEALTHY || |
bea0c5c9 AL |
6232 | (reporter->last_recovery_ts && reporter->recovery_count && |
6233 | time_is_after_jiffies(recover_ts_threshold)))) { | |
c8e1da0b EBE |
6234 | trace_devlink_health_recover_aborted(devlink, |
6235 | reporter->ops->name, | |
6236 | reporter->health_state, | |
6237 | jiffies - | |
6238 | reporter->last_recovery_ts); | |
6239 | return -ECANCELED; | |
6240 | } | |
6241 | ||
6242 | reporter->health_state = DEVLINK_HEALTH_REPORTER_STATE_ERROR; | |
6243 | ||
48bb52c8 EBE |
6244 | if (reporter->auto_dump) { |
6245 | mutex_lock(&reporter->dump_lock); | |
6246 | /* store current dump of current error, for later analysis */ | |
6247 | devlink_health_do_dump(reporter, priv_ctx, NULL); | |
6248 | mutex_unlock(&reporter->dump_lock); | |
6249 | } | |
c8e1da0b EBE |
6250 | |
6251 | if (reporter->auto_recover) | |
e7a98105 JP |
6252 | return devlink_health_reporter_recover(reporter, |
6253 | priv_ctx, NULL); | |
c8e1da0b EBE |
6254 | |
6255 | return 0; | |
6256 | } | |
6257 | EXPORT_SYMBOL_GPL(devlink_health_report); | |
6258 | ||
7afe335a | 6259 | static struct devlink_health_reporter * |
e44ef4e4 AL |
6260 | devlink_health_reporter_get_from_attrs(struct devlink *devlink, |
6261 | struct nlattr **attrs) | |
7afe335a | 6262 | { |
b587bdaf | 6263 | struct devlink_health_reporter *reporter; |
f4f54166 | 6264 | struct devlink_port *devlink_port; |
7afe335a EBE |
6265 | char *reporter_name; |
6266 | ||
e44ef4e4 | 6267 | if (!attrs[DEVLINK_ATTR_HEALTH_REPORTER_NAME]) |
7afe335a EBE |
6268 | return NULL; |
6269 | ||
e44ef4e4 | 6270 | reporter_name = nla_data(attrs[DEVLINK_ATTR_HEALTH_REPORTER_NAME]); |
f4f54166 VT |
6271 | devlink_port = devlink_port_get_from_attrs(devlink, attrs); |
6272 | if (IS_ERR(devlink_port)) { | |
6273 | mutex_lock(&devlink->reporters_lock); | |
6274 | reporter = devlink_health_reporter_find_by_name(devlink, reporter_name); | |
6275 | if (reporter) | |
6276 | refcount_inc(&reporter->refcount); | |
6277 | mutex_unlock(&devlink->reporters_lock); | |
6278 | } else { | |
6279 | mutex_lock(&devlink_port->reporters_lock); | |
6280 | reporter = devlink_port_health_reporter_find_by_name(devlink_port, reporter_name); | |
6281 | if (reporter) | |
6282 | refcount_inc(&reporter->refcount); | |
6283 | mutex_unlock(&devlink_port->reporters_lock); | |
6284 | } | |
6285 | ||
b587bdaf MS |
6286 | return reporter; |
6287 | } | |
6288 | ||
e44ef4e4 AL |
6289 | static struct devlink_health_reporter * |
6290 | devlink_health_reporter_get_from_info(struct devlink *devlink, | |
6291 | struct genl_info *info) | |
6292 | { | |
6293 | return devlink_health_reporter_get_from_attrs(devlink, info->attrs); | |
6294 | } | |
6295 | ||
6296 | static struct devlink_health_reporter * | |
6297 | devlink_health_reporter_get_from_cb(struct netlink_callback *cb) | |
6298 | { | |
ee85da53 | 6299 | const struct genl_dumpit_info *info = genl_dumpit_info(cb); |
e44ef4e4 | 6300 | struct devlink_health_reporter *reporter; |
ee85da53 | 6301 | struct nlattr **attrs = info->attrs; |
e44ef4e4 | 6302 | struct devlink *devlink; |
e44ef4e4 AL |
6303 | |
6304 | mutex_lock(&devlink_mutex); | |
6305 | devlink = devlink_get_from_attrs(sock_net(cb->skb->sk), attrs); | |
6306 | if (IS_ERR(devlink)) | |
6307 | goto unlock; | |
6308 | ||
6309 | reporter = devlink_health_reporter_get_from_attrs(devlink, attrs); | |
6310 | mutex_unlock(&devlink_mutex); | |
e44ef4e4 AL |
6311 | return reporter; |
6312 | unlock: | |
6313 | mutex_unlock(&devlink_mutex); | |
e44ef4e4 AL |
6314 | return NULL; |
6315 | } | |
6316 | ||
97ff3bd3 VG |
6317 | void |
6318 | devlink_health_reporter_state_update(struct devlink_health_reporter *reporter, | |
6319 | enum devlink_health_reporter_state state) | |
6320 | { | |
6321 | if (WARN_ON(state != DEVLINK_HEALTH_REPORTER_STATE_HEALTHY && | |
6322 | state != DEVLINK_HEALTH_REPORTER_STATE_ERROR)) | |
6323 | return; | |
6324 | ||
6325 | if (reporter->health_state == state) | |
6326 | return; | |
6327 | ||
6328 | reporter->health_state = state; | |
6329 | trace_devlink_health_reporter_state_update(reporter->devlink, | |
6330 | reporter->ops->name, state); | |
6331 | devlink_recover_notify(reporter, DEVLINK_CMD_HEALTH_REPORTER_RECOVER); | |
6332 | } | |
6333 | EXPORT_SYMBOL_GPL(devlink_health_reporter_state_update); | |
6334 | ||
7afe335a EBE |
6335 | static int devlink_nl_cmd_health_reporter_get_doit(struct sk_buff *skb, |
6336 | struct genl_info *info) | |
6337 | { | |
6338 | struct devlink *devlink = info->user_ptr[0]; | |
6339 | struct devlink_health_reporter *reporter; | |
6340 | struct sk_buff *msg; | |
6341 | int err; | |
6342 | ||
6343 | reporter = devlink_health_reporter_get_from_info(devlink, info); | |
6344 | if (!reporter) | |
6345 | return -EINVAL; | |
6346 | ||
6347 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
b587bdaf MS |
6348 | if (!msg) { |
6349 | err = -ENOMEM; | |
6350 | goto out; | |
6351 | } | |
7afe335a EBE |
6352 | |
6353 | err = devlink_nl_health_reporter_fill(msg, devlink, reporter, | |
6354 | DEVLINK_CMD_HEALTH_REPORTER_GET, | |
6355 | info->snd_portid, info->snd_seq, | |
6356 | 0); | |
6357 | if (err) { | |
6358 | nlmsg_free(msg); | |
b587bdaf | 6359 | goto out; |
7afe335a EBE |
6360 | } |
6361 | ||
b587bdaf MS |
6362 | err = genlmsg_reply(msg, info); |
6363 | out: | |
6364 | devlink_health_reporter_put(reporter); | |
6365 | return err; | |
7afe335a EBE |
6366 | } |
6367 | ||
6368 | static int | |
6369 | devlink_nl_cmd_health_reporter_get_dumpit(struct sk_buff *msg, | |
6370 | struct netlink_callback *cb) | |
6371 | { | |
6372 | struct devlink_health_reporter *reporter; | |
f4f54166 | 6373 | struct devlink_port *port; |
7afe335a EBE |
6374 | struct devlink *devlink; |
6375 | int start = cb->args[0]; | |
6376 | int idx = 0; | |
6377 | int err; | |
6378 | ||
6379 | mutex_lock(&devlink_mutex); | |
6380 | list_for_each_entry(devlink, &devlink_list, list) { | |
6381 | if (!net_eq(devlink_net(devlink), sock_net(msg->sk))) | |
6382 | continue; | |
b587bdaf | 6383 | mutex_lock(&devlink->reporters_lock); |
7afe335a EBE |
6384 | list_for_each_entry(reporter, &devlink->reporter_list, |
6385 | list) { | |
6386 | if (idx < start) { | |
6387 | idx++; | |
6388 | continue; | |
6389 | } | |
6390 | err = devlink_nl_health_reporter_fill(msg, devlink, | |
6391 | reporter, | |
6392 | DEVLINK_CMD_HEALTH_REPORTER_GET, | |
6393 | NETLINK_CB(cb->skb).portid, | |
6394 | cb->nlh->nlmsg_seq, | |
6395 | NLM_F_MULTI); | |
6396 | if (err) { | |
b587bdaf | 6397 | mutex_unlock(&devlink->reporters_lock); |
7afe335a EBE |
6398 | goto out; |
6399 | } | |
6400 | idx++; | |
6401 | } | |
b587bdaf | 6402 | mutex_unlock(&devlink->reporters_lock); |
7afe335a | 6403 | } |
f4f54166 VT |
6404 | |
6405 | list_for_each_entry(devlink, &devlink_list, list) { | |
6406 | if (!net_eq(devlink_net(devlink), sock_net(msg->sk))) | |
6407 | continue; | |
5d080b50 | 6408 | mutex_lock(&devlink->lock); |
f4f54166 VT |
6409 | list_for_each_entry(port, &devlink->port_list, list) { |
6410 | mutex_lock(&port->reporters_lock); | |
6411 | list_for_each_entry(reporter, &port->reporter_list, list) { | |
6412 | if (idx < start) { | |
6413 | idx++; | |
6414 | continue; | |
6415 | } | |
6416 | err = devlink_nl_health_reporter_fill(msg, devlink, reporter, | |
6417 | DEVLINK_CMD_HEALTH_REPORTER_GET, | |
6418 | NETLINK_CB(cb->skb).portid, | |
6419 | cb->nlh->nlmsg_seq, | |
6420 | NLM_F_MULTI); | |
6421 | if (err) { | |
6422 | mutex_unlock(&port->reporters_lock); | |
5d080b50 | 6423 | mutex_unlock(&devlink->lock); |
f4f54166 VT |
6424 | goto out; |
6425 | } | |
6426 | idx++; | |
6427 | } | |
6428 | mutex_unlock(&port->reporters_lock); | |
6429 | } | |
5d080b50 | 6430 | mutex_unlock(&devlink->lock); |
f4f54166 | 6431 | } |
7afe335a EBE |
6432 | out: |
6433 | mutex_unlock(&devlink_mutex); | |
6434 | ||
6435 | cb->args[0] = idx; | |
6436 | return msg->len; | |
6437 | } | |
6438 | ||
a1e55ec0 EBE |
6439 | static int |
6440 | devlink_nl_cmd_health_reporter_set_doit(struct sk_buff *skb, | |
6441 | struct genl_info *info) | |
6442 | { | |
6443 | struct devlink *devlink = info->user_ptr[0]; | |
6444 | struct devlink_health_reporter *reporter; | |
b587bdaf | 6445 | int err; |
a1e55ec0 EBE |
6446 | |
6447 | reporter = devlink_health_reporter_get_from_info(devlink, info); | |
6448 | if (!reporter) | |
6449 | return -EINVAL; | |
6450 | ||
6451 | if (!reporter->ops->recover && | |
6452 | (info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_GRACEFUL_PERIOD] || | |
b587bdaf MS |
6453 | info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_AUTO_RECOVER])) { |
6454 | err = -EOPNOTSUPP; | |
6455 | goto out; | |
6456 | } | |
48bb52c8 EBE |
6457 | if (!reporter->ops->dump && |
6458 | info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_AUTO_DUMP]) { | |
6459 | err = -EOPNOTSUPP; | |
6460 | goto out; | |
6461 | } | |
a1e55ec0 EBE |
6462 | |
6463 | if (info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_GRACEFUL_PERIOD]) | |
6464 | reporter->graceful_period = | |
6465 | nla_get_u64(info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_GRACEFUL_PERIOD]); | |
6466 | ||
6467 | if (info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_AUTO_RECOVER]) | |
6468 | reporter->auto_recover = | |
6469 | nla_get_u8(info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_AUTO_RECOVER]); | |
6470 | ||
48bb52c8 EBE |
6471 | if (info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_AUTO_DUMP]) |
6472 | reporter->auto_dump = | |
6473 | nla_get_u8(info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_AUTO_DUMP]); | |
6474 | ||
b587bdaf | 6475 | devlink_health_reporter_put(reporter); |
a1e55ec0 | 6476 | return 0; |
b587bdaf MS |
6477 | out: |
6478 | devlink_health_reporter_put(reporter); | |
6479 | return err; | |
a1e55ec0 EBE |
6480 | } |
6481 | ||
20a0943a EBE |
6482 | static int devlink_nl_cmd_health_reporter_recover_doit(struct sk_buff *skb, |
6483 | struct genl_info *info) | |
6484 | { | |
6485 | struct devlink *devlink = info->user_ptr[0]; | |
6486 | struct devlink_health_reporter *reporter; | |
b587bdaf | 6487 | int err; |
20a0943a EBE |
6488 | |
6489 | reporter = devlink_health_reporter_get_from_info(devlink, info); | |
6490 | if (!reporter) | |
6491 | return -EINVAL; | |
6492 | ||
e7a98105 | 6493 | err = devlink_health_reporter_recover(reporter, NULL, info->extack); |
b587bdaf MS |
6494 | |
6495 | devlink_health_reporter_put(reporter); | |
6496 | return err; | |
20a0943a EBE |
6497 | } |
6498 | ||
fca42a27 EBE |
6499 | static int devlink_nl_cmd_health_reporter_diagnose_doit(struct sk_buff *skb, |
6500 | struct genl_info *info) | |
6501 | { | |
6502 | struct devlink *devlink = info->user_ptr[0]; | |
6503 | struct devlink_health_reporter *reporter; | |
6504 | struct devlink_fmsg *fmsg; | |
6505 | int err; | |
6506 | ||
6507 | reporter = devlink_health_reporter_get_from_info(devlink, info); | |
6508 | if (!reporter) | |
6509 | return -EINVAL; | |
6510 | ||
b587bdaf MS |
6511 | if (!reporter->ops->diagnose) { |
6512 | devlink_health_reporter_put(reporter); | |
fca42a27 | 6513 | return -EOPNOTSUPP; |
b587bdaf | 6514 | } |
fca42a27 EBE |
6515 | |
6516 | fmsg = devlink_fmsg_alloc(); | |
b587bdaf MS |
6517 | if (!fmsg) { |
6518 | devlink_health_reporter_put(reporter); | |
fca42a27 | 6519 | return -ENOMEM; |
b587bdaf | 6520 | } |
fca42a27 EBE |
6521 | |
6522 | err = devlink_fmsg_obj_nest_start(fmsg); | |
6523 | if (err) | |
6524 | goto out; | |
6525 | ||
e7a98105 | 6526 | err = reporter->ops->diagnose(reporter, fmsg, info->extack); |
fca42a27 EBE |
6527 | if (err) |
6528 | goto out; | |
6529 | ||
6530 | err = devlink_fmsg_obj_nest_end(fmsg); | |
6531 | if (err) | |
6532 | goto out; | |
6533 | ||
6534 | err = devlink_fmsg_snd(fmsg, info, | |
6535 | DEVLINK_CMD_HEALTH_REPORTER_DIAGNOSE, 0); | |
6536 | ||
6537 | out: | |
6538 | devlink_fmsg_free(fmsg); | |
b587bdaf | 6539 | devlink_health_reporter_put(reporter); |
fca42a27 EBE |
6540 | return err; |
6541 | } | |
6542 | ||
e44ef4e4 AL |
6543 | static int |
6544 | devlink_nl_cmd_health_reporter_dump_get_dumpit(struct sk_buff *skb, | |
6545 | struct netlink_callback *cb) | |
35455e23 | 6546 | { |
35455e23 | 6547 | struct devlink_health_reporter *reporter; |
e44ef4e4 | 6548 | u64 start = cb->args[0]; |
35455e23 EBE |
6549 | int err; |
6550 | ||
e44ef4e4 | 6551 | reporter = devlink_health_reporter_get_from_cb(cb); |
35455e23 EBE |
6552 | if (!reporter) |
6553 | return -EINVAL; | |
6554 | ||
b587bdaf | 6555 | if (!reporter->ops->dump) { |
e44ef4e4 AL |
6556 | err = -EOPNOTSUPP; |
6557 | goto out; | |
b587bdaf | 6558 | } |
35455e23 | 6559 | mutex_lock(&reporter->dump_lock); |
e44ef4e4 | 6560 | if (!start) { |
e7a98105 | 6561 | err = devlink_health_do_dump(reporter, NULL, cb->extack); |
e44ef4e4 AL |
6562 | if (err) |
6563 | goto unlock; | |
6564 | cb->args[1] = reporter->dump_ts; | |
6565 | } | |
6566 | if (!reporter->dump_fmsg || cb->args[1] != reporter->dump_ts) { | |
6567 | NL_SET_ERR_MSG_MOD(cb->extack, "Dump trampled, please retry"); | |
6568 | err = -EAGAIN; | |
6569 | goto unlock; | |
6570 | } | |
35455e23 | 6571 | |
e44ef4e4 AL |
6572 | err = devlink_fmsg_dumpit(reporter->dump_fmsg, skb, cb, |
6573 | DEVLINK_CMD_HEALTH_REPORTER_DUMP_GET); | |
6574 | unlock: | |
35455e23 | 6575 | mutex_unlock(&reporter->dump_lock); |
e44ef4e4 | 6576 | out: |
b587bdaf | 6577 | devlink_health_reporter_put(reporter); |
35455e23 EBE |
6578 | return err; |
6579 | } | |
6580 | ||
6581 | static int | |
6582 | devlink_nl_cmd_health_reporter_dump_clear_doit(struct sk_buff *skb, | |
6583 | struct genl_info *info) | |
6584 | { | |
6585 | struct devlink *devlink = info->user_ptr[0]; | |
6586 | struct devlink_health_reporter *reporter; | |
6587 | ||
6588 | reporter = devlink_health_reporter_get_from_info(devlink, info); | |
6589 | if (!reporter) | |
6590 | return -EINVAL; | |
6591 | ||
b587bdaf MS |
6592 | if (!reporter->ops->dump) { |
6593 | devlink_health_reporter_put(reporter); | |
35455e23 | 6594 | return -EOPNOTSUPP; |
b587bdaf | 6595 | } |
35455e23 EBE |
6596 | |
6597 | mutex_lock(&reporter->dump_lock); | |
6598 | devlink_health_dump_clear(reporter); | |
6599 | mutex_unlock(&reporter->dump_lock); | |
b587bdaf | 6600 | devlink_health_reporter_put(reporter); |
35455e23 EBE |
6601 | return 0; |
6602 | } | |
6603 | ||
e2ce94dc JP |
6604 | static int devlink_nl_cmd_health_reporter_test_doit(struct sk_buff *skb, |
6605 | struct genl_info *info) | |
6606 | { | |
6607 | struct devlink *devlink = info->user_ptr[0]; | |
6608 | struct devlink_health_reporter *reporter; | |
6609 | int err; | |
6610 | ||
6611 | reporter = devlink_health_reporter_get_from_info(devlink, info); | |
6612 | if (!reporter) | |
6613 | return -EINVAL; | |
6614 | ||
6615 | if (!reporter->ops->test) { | |
6616 | devlink_health_reporter_put(reporter); | |
6617 | return -EOPNOTSUPP; | |
6618 | } | |
6619 | ||
6620 | err = reporter->ops->test(reporter, info->extack); | |
6621 | ||
6622 | devlink_health_reporter_put(reporter); | |
6623 | return err; | |
6624 | } | |
6625 | ||
0f420b6c IS |
6626 | struct devlink_stats { |
6627 | u64 rx_bytes; | |
6628 | u64 rx_packets; | |
6629 | struct u64_stats_sync syncp; | |
6630 | }; | |
6631 | ||
1e8c6619 IS |
6632 | /** |
6633 | * struct devlink_trap_policer_item - Packet trap policer attributes. | |
6634 | * @policer: Immutable packet trap policer attributes. | |
6635 | * @rate: Rate in packets / sec. | |
6636 | * @burst: Burst size in packets. | |
6637 | * @list: trap_policer_list member. | |
6638 | * | |
6639 | * Describes packet trap policer attributes. Created by devlink during trap | |
6640 | * policer registration. | |
6641 | */ | |
6642 | struct devlink_trap_policer_item { | |
6643 | const struct devlink_trap_policer *policer; | |
6644 | u64 rate; | |
6645 | u64 burst; | |
6646 | struct list_head list; | |
6647 | }; | |
6648 | ||
0f420b6c IS |
6649 | /** |
6650 | * struct devlink_trap_group_item - Packet trap group attributes. | |
6651 | * @group: Immutable packet trap group attributes. | |
f9f54392 | 6652 | * @policer_item: Associated policer item. Can be NULL. |
0f420b6c IS |
6653 | * @list: trap_group_list member. |
6654 | * @stats: Trap group statistics. | |
6655 | * | |
6656 | * Describes packet trap group attributes. Created by devlink during trap | |
a09b37fc | 6657 | * group registration. |
0f420b6c IS |
6658 | */ |
6659 | struct devlink_trap_group_item { | |
6660 | const struct devlink_trap_group *group; | |
f9f54392 | 6661 | struct devlink_trap_policer_item *policer_item; |
0f420b6c IS |
6662 | struct list_head list; |
6663 | struct devlink_stats __percpu *stats; | |
6664 | }; | |
6665 | ||
6666 | /** | |
6667 | * struct devlink_trap_item - Packet trap attributes. | |
6668 | * @trap: Immutable packet trap attributes. | |
6669 | * @group_item: Associated group item. | |
6670 | * @list: trap_list member. | |
6671 | * @action: Trap action. | |
6672 | * @stats: Trap statistics. | |
6673 | * @priv: Driver private information. | |
6674 | * | |
6675 | * Describes both mutable and immutable packet trap attributes. Created by | |
6676 | * devlink during trap registration and used for all trap related operations. | |
6677 | */ | |
6678 | struct devlink_trap_item { | |
6679 | const struct devlink_trap *trap; | |
6680 | struct devlink_trap_group_item *group_item; | |
6681 | struct list_head list; | |
6682 | enum devlink_trap_action action; | |
6683 | struct devlink_stats __percpu *stats; | |
6684 | void *priv; | |
6685 | }; | |
6686 | ||
1e8c6619 IS |
6687 | static struct devlink_trap_policer_item * |
6688 | devlink_trap_policer_item_lookup(struct devlink *devlink, u32 id) | |
6689 | { | |
6690 | struct devlink_trap_policer_item *policer_item; | |
6691 | ||
6692 | list_for_each_entry(policer_item, &devlink->trap_policer_list, list) { | |
6693 | if (policer_item->policer->id == id) | |
6694 | return policer_item; | |
6695 | } | |
6696 | ||
6697 | return NULL; | |
6698 | } | |
6699 | ||
0f420b6c IS |
6700 | static struct devlink_trap_item * |
6701 | devlink_trap_item_lookup(struct devlink *devlink, const char *name) | |
6702 | { | |
6703 | struct devlink_trap_item *trap_item; | |
6704 | ||
6705 | list_for_each_entry(trap_item, &devlink->trap_list, list) { | |
6706 | if (!strcmp(trap_item->trap->name, name)) | |
6707 | return trap_item; | |
6708 | } | |
6709 | ||
6710 | return NULL; | |
6711 | } | |
6712 | ||
6713 | static struct devlink_trap_item * | |
6714 | devlink_trap_item_get_from_info(struct devlink *devlink, | |
6715 | struct genl_info *info) | |
6716 | { | |
6717 | struct nlattr *attr; | |
6718 | ||
6719 | if (!info->attrs[DEVLINK_ATTR_TRAP_NAME]) | |
6720 | return NULL; | |
6721 | attr = info->attrs[DEVLINK_ATTR_TRAP_NAME]; | |
6722 | ||
6723 | return devlink_trap_item_lookup(devlink, nla_data(attr)); | |
6724 | } | |
6725 | ||
6726 | static int | |
6727 | devlink_trap_action_get_from_info(struct genl_info *info, | |
6728 | enum devlink_trap_action *p_trap_action) | |
6729 | { | |
6730 | u8 val; | |
6731 | ||
6732 | val = nla_get_u8(info->attrs[DEVLINK_ATTR_TRAP_ACTION]); | |
6733 | switch (val) { | |
df561f66 GS |
6734 | case DEVLINK_TRAP_ACTION_DROP: |
6735 | case DEVLINK_TRAP_ACTION_TRAP: | |
9eefeabe | 6736 | case DEVLINK_TRAP_ACTION_MIRROR: |
0f420b6c IS |
6737 | *p_trap_action = val; |
6738 | break; | |
6739 | default: | |
6740 | return -EINVAL; | |
6741 | } | |
6742 | ||
6743 | return 0; | |
6744 | } | |
6745 | ||
6746 | static int devlink_trap_metadata_put(struct sk_buff *msg, | |
6747 | const struct devlink_trap *trap) | |
6748 | { | |
6749 | struct nlattr *attr; | |
6750 | ||
6751 | attr = nla_nest_start(msg, DEVLINK_ATTR_TRAP_METADATA); | |
6752 | if (!attr) | |
6753 | return -EMSGSIZE; | |
6754 | ||
6755 | if ((trap->metadata_cap & DEVLINK_TRAP_METADATA_TYPE_F_IN_PORT) && | |
6756 | nla_put_flag(msg, DEVLINK_ATTR_TRAP_METADATA_TYPE_IN_PORT)) | |
6757 | goto nla_put_failure; | |
85b0589e JP |
6758 | if ((trap->metadata_cap & DEVLINK_TRAP_METADATA_TYPE_F_FA_COOKIE) && |
6759 | nla_put_flag(msg, DEVLINK_ATTR_TRAP_METADATA_TYPE_FA_COOKIE)) | |
6760 | goto nla_put_failure; | |
0f420b6c IS |
6761 | |
6762 | nla_nest_end(msg, attr); | |
6763 | ||
6764 | return 0; | |
6765 | ||
6766 | nla_put_failure: | |
6767 | nla_nest_cancel(msg, attr); | |
6768 | return -EMSGSIZE; | |
6769 | } | |
6770 | ||
6771 | static void devlink_trap_stats_read(struct devlink_stats __percpu *trap_stats, | |
6772 | struct devlink_stats *stats) | |
6773 | { | |
6774 | int i; | |
6775 | ||
6776 | memset(stats, 0, sizeof(*stats)); | |
6777 | for_each_possible_cpu(i) { | |
6778 | struct devlink_stats *cpu_stats; | |
6779 | u64 rx_packets, rx_bytes; | |
6780 | unsigned int start; | |
6781 | ||
6782 | cpu_stats = per_cpu_ptr(trap_stats, i); | |
6783 | do { | |
6784 | start = u64_stats_fetch_begin_irq(&cpu_stats->syncp); | |
6785 | rx_packets = cpu_stats->rx_packets; | |
6786 | rx_bytes = cpu_stats->rx_bytes; | |
6787 | } while (u64_stats_fetch_retry_irq(&cpu_stats->syncp, start)); | |
6788 | ||
6789 | stats->rx_packets += rx_packets; | |
6790 | stats->rx_bytes += rx_bytes; | |
6791 | } | |
6792 | } | |
6793 | ||
6794 | static int devlink_trap_stats_put(struct sk_buff *msg, | |
6795 | struct devlink_stats __percpu *trap_stats) | |
6796 | { | |
6797 | struct devlink_stats stats; | |
6798 | struct nlattr *attr; | |
6799 | ||
6800 | devlink_trap_stats_read(trap_stats, &stats); | |
6801 | ||
6802 | attr = nla_nest_start(msg, DEVLINK_ATTR_STATS); | |
6803 | if (!attr) | |
6804 | return -EMSGSIZE; | |
6805 | ||
6806 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_STATS_RX_PACKETS, | |
6807 | stats.rx_packets, DEVLINK_ATTR_PAD)) | |
6808 | goto nla_put_failure; | |
6809 | ||
6810 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_STATS_RX_BYTES, | |
6811 | stats.rx_bytes, DEVLINK_ATTR_PAD)) | |
6812 | goto nla_put_failure; | |
6813 | ||
6814 | nla_nest_end(msg, attr); | |
6815 | ||
6816 | return 0; | |
6817 | ||
6818 | nla_put_failure: | |
6819 | nla_nest_cancel(msg, attr); | |
6820 | return -EMSGSIZE; | |
6821 | } | |
6822 | ||
6823 | static int devlink_nl_trap_fill(struct sk_buff *msg, struct devlink *devlink, | |
6824 | const struct devlink_trap_item *trap_item, | |
6825 | enum devlink_command cmd, u32 portid, u32 seq, | |
6826 | int flags) | |
6827 | { | |
6828 | struct devlink_trap_group_item *group_item = trap_item->group_item; | |
6829 | void *hdr; | |
6830 | int err; | |
6831 | ||
6832 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
6833 | if (!hdr) | |
6834 | return -EMSGSIZE; | |
6835 | ||
6836 | if (devlink_nl_put_handle(msg, devlink)) | |
6837 | goto nla_put_failure; | |
6838 | ||
6839 | if (nla_put_string(msg, DEVLINK_ATTR_TRAP_GROUP_NAME, | |
6840 | group_item->group->name)) | |
6841 | goto nla_put_failure; | |
6842 | ||
6843 | if (nla_put_string(msg, DEVLINK_ATTR_TRAP_NAME, trap_item->trap->name)) | |
6844 | goto nla_put_failure; | |
6845 | ||
6846 | if (nla_put_u8(msg, DEVLINK_ATTR_TRAP_TYPE, trap_item->trap->type)) | |
6847 | goto nla_put_failure; | |
6848 | ||
6849 | if (trap_item->trap->generic && | |
6850 | nla_put_flag(msg, DEVLINK_ATTR_TRAP_GENERIC)) | |
6851 | goto nla_put_failure; | |
6852 | ||
6853 | if (nla_put_u8(msg, DEVLINK_ATTR_TRAP_ACTION, trap_item->action)) | |
6854 | goto nla_put_failure; | |
6855 | ||
6856 | err = devlink_trap_metadata_put(msg, trap_item->trap); | |
6857 | if (err) | |
6858 | goto nla_put_failure; | |
6859 | ||
6860 | err = devlink_trap_stats_put(msg, trap_item->stats); | |
6861 | if (err) | |
6862 | goto nla_put_failure; | |
6863 | ||
6864 | genlmsg_end(msg, hdr); | |
6865 | ||
6866 | return 0; | |
6867 | ||
6868 | nla_put_failure: | |
6869 | genlmsg_cancel(msg, hdr); | |
6870 | return -EMSGSIZE; | |
6871 | } | |
6872 | ||
6873 | static int devlink_nl_cmd_trap_get_doit(struct sk_buff *skb, | |
6874 | struct genl_info *info) | |
6875 | { | |
6876 | struct netlink_ext_ack *extack = info->extack; | |
6877 | struct devlink *devlink = info->user_ptr[0]; | |
6878 | struct devlink_trap_item *trap_item; | |
6879 | struct sk_buff *msg; | |
6880 | int err; | |
6881 | ||
6882 | if (list_empty(&devlink->trap_list)) | |
6883 | return -EOPNOTSUPP; | |
6884 | ||
6885 | trap_item = devlink_trap_item_get_from_info(devlink, info); | |
6886 | if (!trap_item) { | |
6887 | NL_SET_ERR_MSG_MOD(extack, "Device did not register this trap"); | |
6888 | return -ENOENT; | |
6889 | } | |
6890 | ||
6891 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
6892 | if (!msg) | |
6893 | return -ENOMEM; | |
6894 | ||
6895 | err = devlink_nl_trap_fill(msg, devlink, trap_item, | |
6896 | DEVLINK_CMD_TRAP_NEW, info->snd_portid, | |
6897 | info->snd_seq, 0); | |
6898 | if (err) | |
6899 | goto err_trap_fill; | |
6900 | ||
6901 | return genlmsg_reply(msg, info); | |
6902 | ||
6903 | err_trap_fill: | |
6904 | nlmsg_free(msg); | |
6905 | return err; | |
6906 | } | |
6907 | ||
6908 | static int devlink_nl_cmd_trap_get_dumpit(struct sk_buff *msg, | |
6909 | struct netlink_callback *cb) | |
6910 | { | |
6911 | struct devlink_trap_item *trap_item; | |
6912 | struct devlink *devlink; | |
6913 | int start = cb->args[0]; | |
6914 | int idx = 0; | |
6915 | int err; | |
6916 | ||
6917 | mutex_lock(&devlink_mutex); | |
6918 | list_for_each_entry(devlink, &devlink_list, list) { | |
6919 | if (!net_eq(devlink_net(devlink), sock_net(msg->sk))) | |
6920 | continue; | |
6921 | mutex_lock(&devlink->lock); | |
6922 | list_for_each_entry(trap_item, &devlink->trap_list, list) { | |
6923 | if (idx < start) { | |
6924 | idx++; | |
6925 | continue; | |
6926 | } | |
6927 | err = devlink_nl_trap_fill(msg, devlink, trap_item, | |
6928 | DEVLINK_CMD_TRAP_NEW, | |
6929 | NETLINK_CB(cb->skb).portid, | |
6930 | cb->nlh->nlmsg_seq, | |
6931 | NLM_F_MULTI); | |
6932 | if (err) { | |
6933 | mutex_unlock(&devlink->lock); | |
6934 | goto out; | |
6935 | } | |
6936 | idx++; | |
6937 | } | |
6938 | mutex_unlock(&devlink->lock); | |
6939 | } | |
6940 | out: | |
6941 | mutex_unlock(&devlink_mutex); | |
6942 | ||
6943 | cb->args[0] = idx; | |
6944 | return msg->len; | |
6945 | } | |
6946 | ||
6947 | static int __devlink_trap_action_set(struct devlink *devlink, | |
6948 | struct devlink_trap_item *trap_item, | |
6949 | enum devlink_trap_action trap_action, | |
6950 | struct netlink_ext_ack *extack) | |
6951 | { | |
6952 | int err; | |
6953 | ||
6954 | if (trap_item->action != trap_action && | |
6955 | trap_item->trap->type != DEVLINK_TRAP_TYPE_DROP) { | |
6956 | NL_SET_ERR_MSG_MOD(extack, "Cannot change action of non-drop traps. Skipping"); | |
6957 | return 0; | |
6958 | } | |
6959 | ||
6960 | err = devlink->ops->trap_action_set(devlink, trap_item->trap, | |
c88e11e0 | 6961 | trap_action, extack); |
0f420b6c IS |
6962 | if (err) |
6963 | return err; | |
6964 | ||
6965 | trap_item->action = trap_action; | |
6966 | ||
6967 | return 0; | |
6968 | } | |
6969 | ||
6970 | static int devlink_trap_action_set(struct devlink *devlink, | |
6971 | struct devlink_trap_item *trap_item, | |
6972 | struct genl_info *info) | |
6973 | { | |
6974 | enum devlink_trap_action trap_action; | |
6975 | int err; | |
6976 | ||
6977 | if (!info->attrs[DEVLINK_ATTR_TRAP_ACTION]) | |
6978 | return 0; | |
6979 | ||
6980 | err = devlink_trap_action_get_from_info(info, &trap_action); | |
6981 | if (err) { | |
6982 | NL_SET_ERR_MSG_MOD(info->extack, "Invalid trap action"); | |
6983 | return -EINVAL; | |
6984 | } | |
6985 | ||
6986 | return __devlink_trap_action_set(devlink, trap_item, trap_action, | |
6987 | info->extack); | |
6988 | } | |
6989 | ||
6990 | static int devlink_nl_cmd_trap_set_doit(struct sk_buff *skb, | |
6991 | struct genl_info *info) | |
6992 | { | |
6993 | struct netlink_ext_ack *extack = info->extack; | |
6994 | struct devlink *devlink = info->user_ptr[0]; | |
6995 | struct devlink_trap_item *trap_item; | |
0f420b6c IS |
6996 | |
6997 | if (list_empty(&devlink->trap_list)) | |
6998 | return -EOPNOTSUPP; | |
6999 | ||
7000 | trap_item = devlink_trap_item_get_from_info(devlink, info); | |
7001 | if (!trap_item) { | |
7002 | NL_SET_ERR_MSG_MOD(extack, "Device did not register this trap"); | |
7003 | return -ENOENT; | |
7004 | } | |
7005 | ||
8daa76a5 | 7006 | return devlink_trap_action_set(devlink, trap_item, info); |
0f420b6c IS |
7007 | } |
7008 | ||
7009 | static struct devlink_trap_group_item * | |
7010 | devlink_trap_group_item_lookup(struct devlink *devlink, const char *name) | |
7011 | { | |
7012 | struct devlink_trap_group_item *group_item; | |
7013 | ||
7014 | list_for_each_entry(group_item, &devlink->trap_group_list, list) { | |
7015 | if (!strcmp(group_item->group->name, name)) | |
7016 | return group_item; | |
7017 | } | |
7018 | ||
7019 | return NULL; | |
7020 | } | |
7021 | ||
107f1678 IS |
7022 | static struct devlink_trap_group_item * |
7023 | devlink_trap_group_item_lookup_by_id(struct devlink *devlink, u16 id) | |
7024 | { | |
7025 | struct devlink_trap_group_item *group_item; | |
7026 | ||
7027 | list_for_each_entry(group_item, &devlink->trap_group_list, list) { | |
7028 | if (group_item->group->id == id) | |
7029 | return group_item; | |
7030 | } | |
7031 | ||
7032 | return NULL; | |
7033 | } | |
7034 | ||
0f420b6c IS |
7035 | static struct devlink_trap_group_item * |
7036 | devlink_trap_group_item_get_from_info(struct devlink *devlink, | |
7037 | struct genl_info *info) | |
7038 | { | |
7039 | char *name; | |
7040 | ||
7041 | if (!info->attrs[DEVLINK_ATTR_TRAP_GROUP_NAME]) | |
7042 | return NULL; | |
7043 | name = nla_data(info->attrs[DEVLINK_ATTR_TRAP_GROUP_NAME]); | |
7044 | ||
7045 | return devlink_trap_group_item_lookup(devlink, name); | |
7046 | } | |
7047 | ||
7048 | static int | |
7049 | devlink_nl_trap_group_fill(struct sk_buff *msg, struct devlink *devlink, | |
7050 | const struct devlink_trap_group_item *group_item, | |
7051 | enum devlink_command cmd, u32 portid, u32 seq, | |
7052 | int flags) | |
7053 | { | |
7054 | void *hdr; | |
7055 | int err; | |
7056 | ||
7057 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
7058 | if (!hdr) | |
7059 | return -EMSGSIZE; | |
7060 | ||
7061 | if (devlink_nl_put_handle(msg, devlink)) | |
7062 | goto nla_put_failure; | |
7063 | ||
7064 | if (nla_put_string(msg, DEVLINK_ATTR_TRAP_GROUP_NAME, | |
7065 | group_item->group->name)) | |
7066 | goto nla_put_failure; | |
7067 | ||
7068 | if (group_item->group->generic && | |
7069 | nla_put_flag(msg, DEVLINK_ATTR_TRAP_GENERIC)) | |
7070 | goto nla_put_failure; | |
7071 | ||
f9f54392 IS |
7072 | if (group_item->policer_item && |
7073 | nla_put_u32(msg, DEVLINK_ATTR_TRAP_POLICER_ID, | |
7074 | group_item->policer_item->policer->id)) | |
7075 | goto nla_put_failure; | |
7076 | ||
0f420b6c IS |
7077 | err = devlink_trap_stats_put(msg, group_item->stats); |
7078 | if (err) | |
7079 | goto nla_put_failure; | |
7080 | ||
7081 | genlmsg_end(msg, hdr); | |
7082 | ||
7083 | return 0; | |
7084 | ||
7085 | nla_put_failure: | |
7086 | genlmsg_cancel(msg, hdr); | |
7087 | return -EMSGSIZE; | |
7088 | } | |
7089 | ||
7090 | static int devlink_nl_cmd_trap_group_get_doit(struct sk_buff *skb, | |
7091 | struct genl_info *info) | |
7092 | { | |
7093 | struct netlink_ext_ack *extack = info->extack; | |
7094 | struct devlink *devlink = info->user_ptr[0]; | |
7095 | struct devlink_trap_group_item *group_item; | |
7096 | struct sk_buff *msg; | |
7097 | int err; | |
7098 | ||
7099 | if (list_empty(&devlink->trap_group_list)) | |
7100 | return -EOPNOTSUPP; | |
7101 | ||
7102 | group_item = devlink_trap_group_item_get_from_info(devlink, info); | |
7103 | if (!group_item) { | |
7104 | NL_SET_ERR_MSG_MOD(extack, "Device did not register this trap group"); | |
7105 | return -ENOENT; | |
7106 | } | |
7107 | ||
7108 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
7109 | if (!msg) | |
7110 | return -ENOMEM; | |
7111 | ||
7112 | err = devlink_nl_trap_group_fill(msg, devlink, group_item, | |
7113 | DEVLINK_CMD_TRAP_GROUP_NEW, | |
7114 | info->snd_portid, info->snd_seq, 0); | |
7115 | if (err) | |
7116 | goto err_trap_group_fill; | |
7117 | ||
7118 | return genlmsg_reply(msg, info); | |
7119 | ||
7120 | err_trap_group_fill: | |
7121 | nlmsg_free(msg); | |
7122 | return err; | |
7123 | } | |
7124 | ||
7125 | static int devlink_nl_cmd_trap_group_get_dumpit(struct sk_buff *msg, | |
7126 | struct netlink_callback *cb) | |
7127 | { | |
7128 | enum devlink_command cmd = DEVLINK_CMD_TRAP_GROUP_NEW; | |
7129 | struct devlink_trap_group_item *group_item; | |
7130 | u32 portid = NETLINK_CB(cb->skb).portid; | |
7131 | struct devlink *devlink; | |
7132 | int start = cb->args[0]; | |
7133 | int idx = 0; | |
7134 | int err; | |
7135 | ||
7136 | mutex_lock(&devlink_mutex); | |
7137 | list_for_each_entry(devlink, &devlink_list, list) { | |
7138 | if (!net_eq(devlink_net(devlink), sock_net(msg->sk))) | |
7139 | continue; | |
7140 | mutex_lock(&devlink->lock); | |
7141 | list_for_each_entry(group_item, &devlink->trap_group_list, | |
7142 | list) { | |
7143 | if (idx < start) { | |
7144 | idx++; | |
7145 | continue; | |
7146 | } | |
7147 | err = devlink_nl_trap_group_fill(msg, devlink, | |
7148 | group_item, cmd, | |
7149 | portid, | |
7150 | cb->nlh->nlmsg_seq, | |
7151 | NLM_F_MULTI); | |
7152 | if (err) { | |
7153 | mutex_unlock(&devlink->lock); | |
7154 | goto out; | |
7155 | } | |
7156 | idx++; | |
7157 | } | |
7158 | mutex_unlock(&devlink->lock); | |
7159 | } | |
7160 | out: | |
7161 | mutex_unlock(&devlink_mutex); | |
7162 | ||
7163 | cb->args[0] = idx; | |
7164 | return msg->len; | |
7165 | } | |
7166 | ||
7167 | static int | |
7168 | __devlink_trap_group_action_set(struct devlink *devlink, | |
7169 | struct devlink_trap_group_item *group_item, | |
7170 | enum devlink_trap_action trap_action, | |
7171 | struct netlink_ext_ack *extack) | |
7172 | { | |
7173 | const char *group_name = group_item->group->name; | |
7174 | struct devlink_trap_item *trap_item; | |
7175 | int err; | |
7176 | ||
c50bf2be IC |
7177 | if (devlink->ops->trap_group_action_set) { |
7178 | err = devlink->ops->trap_group_action_set(devlink, group_item->group, | |
7179 | trap_action, extack); | |
7180 | if (err) | |
7181 | return err; | |
7182 | ||
7183 | list_for_each_entry(trap_item, &devlink->trap_list, list) { | |
7184 | if (strcmp(trap_item->group_item->group->name, group_name)) | |
7185 | continue; | |
7186 | if (trap_item->action != trap_action && | |
7187 | trap_item->trap->type != DEVLINK_TRAP_TYPE_DROP) | |
7188 | continue; | |
7189 | trap_item->action = trap_action; | |
7190 | } | |
7191 | ||
7192 | return 0; | |
7193 | } | |
7194 | ||
0f420b6c | 7195 | list_for_each_entry(trap_item, &devlink->trap_list, list) { |
107f1678 | 7196 | if (strcmp(trap_item->group_item->group->name, group_name)) |
0f420b6c IS |
7197 | continue; |
7198 | err = __devlink_trap_action_set(devlink, trap_item, | |
7199 | trap_action, extack); | |
7200 | if (err) | |
7201 | return err; | |
7202 | } | |
7203 | ||
7204 | return 0; | |
7205 | } | |
7206 | ||
7207 | static int | |
7208 | devlink_trap_group_action_set(struct devlink *devlink, | |
7209 | struct devlink_trap_group_item *group_item, | |
c064875a | 7210 | struct genl_info *info, bool *p_modified) |
0f420b6c IS |
7211 | { |
7212 | enum devlink_trap_action trap_action; | |
7213 | int err; | |
7214 | ||
7215 | if (!info->attrs[DEVLINK_ATTR_TRAP_ACTION]) | |
7216 | return 0; | |
7217 | ||
7218 | err = devlink_trap_action_get_from_info(info, &trap_action); | |
7219 | if (err) { | |
7220 | NL_SET_ERR_MSG_MOD(info->extack, "Invalid trap action"); | |
7221 | return -EINVAL; | |
7222 | } | |
7223 | ||
7224 | err = __devlink_trap_group_action_set(devlink, group_item, trap_action, | |
7225 | info->extack); | |
7226 | if (err) | |
7227 | return err; | |
7228 | ||
c064875a IS |
7229 | *p_modified = true; |
7230 | ||
7231 | return 0; | |
7232 | } | |
7233 | ||
7234 | static int devlink_trap_group_set(struct devlink *devlink, | |
7235 | struct devlink_trap_group_item *group_item, | |
7236 | struct genl_info *info) | |
7237 | { | |
7238 | struct devlink_trap_policer_item *policer_item; | |
7239 | struct netlink_ext_ack *extack = info->extack; | |
7240 | const struct devlink_trap_policer *policer; | |
7241 | struct nlattr **attrs = info->attrs; | |
7242 | int err; | |
7243 | ||
7244 | if (!attrs[DEVLINK_ATTR_TRAP_POLICER_ID]) | |
7245 | return 0; | |
7246 | ||
7247 | if (!devlink->ops->trap_group_set) | |
7248 | return -EOPNOTSUPP; | |
7249 | ||
7250 | policer_item = group_item->policer_item; | |
7251 | if (attrs[DEVLINK_ATTR_TRAP_POLICER_ID]) { | |
7252 | u32 policer_id; | |
7253 | ||
7254 | policer_id = nla_get_u32(attrs[DEVLINK_ATTR_TRAP_POLICER_ID]); | |
7255 | policer_item = devlink_trap_policer_item_lookup(devlink, | |
7256 | policer_id); | |
7257 | if (policer_id && !policer_item) { | |
7258 | NL_SET_ERR_MSG_MOD(extack, "Device did not register this trap policer"); | |
7259 | return -ENOENT; | |
7260 | } | |
7261 | } | |
7262 | policer = policer_item ? policer_item->policer : NULL; | |
7263 | ||
c88e11e0 IS |
7264 | err = devlink->ops->trap_group_set(devlink, group_item->group, policer, |
7265 | extack); | |
c064875a IS |
7266 | if (err) |
7267 | return err; | |
7268 | ||
7269 | group_item->policer_item = policer_item; | |
7270 | ||
0f420b6c IS |
7271 | return 0; |
7272 | } | |
7273 | ||
7274 | static int devlink_nl_cmd_trap_group_set_doit(struct sk_buff *skb, | |
7275 | struct genl_info *info) | |
7276 | { | |
7277 | struct netlink_ext_ack *extack = info->extack; | |
7278 | struct devlink *devlink = info->user_ptr[0]; | |
7279 | struct devlink_trap_group_item *group_item; | |
c064875a | 7280 | bool modified = false; |
0f420b6c IS |
7281 | int err; |
7282 | ||
7283 | if (list_empty(&devlink->trap_group_list)) | |
7284 | return -EOPNOTSUPP; | |
7285 | ||
7286 | group_item = devlink_trap_group_item_get_from_info(devlink, info); | |
7287 | if (!group_item) { | |
7288 | NL_SET_ERR_MSG_MOD(extack, "Device did not register this trap group"); | |
7289 | return -ENOENT; | |
7290 | } | |
7291 | ||
c064875a IS |
7292 | err = devlink_trap_group_action_set(devlink, group_item, info, |
7293 | &modified); | |
0f420b6c IS |
7294 | if (err) |
7295 | return err; | |
7296 | ||
c064875a IS |
7297 | err = devlink_trap_group_set(devlink, group_item, info); |
7298 | if (err) | |
7299 | goto err_trap_group_set; | |
7300 | ||
0f420b6c | 7301 | return 0; |
c064875a IS |
7302 | |
7303 | err_trap_group_set: | |
7304 | if (modified) | |
7305 | NL_SET_ERR_MSG_MOD(extack, "Trap group set failed, but some changes were committed already"); | |
7306 | return err; | |
0f420b6c IS |
7307 | } |
7308 | ||
1e8c6619 IS |
7309 | static struct devlink_trap_policer_item * |
7310 | devlink_trap_policer_item_get_from_info(struct devlink *devlink, | |
7311 | struct genl_info *info) | |
7312 | { | |
7313 | u32 id; | |
7314 | ||
7315 | if (!info->attrs[DEVLINK_ATTR_TRAP_POLICER_ID]) | |
7316 | return NULL; | |
7317 | id = nla_get_u32(info->attrs[DEVLINK_ATTR_TRAP_POLICER_ID]); | |
7318 | ||
7319 | return devlink_trap_policer_item_lookup(devlink, id); | |
7320 | } | |
7321 | ||
7322 | static int | |
7323 | devlink_trap_policer_stats_put(struct sk_buff *msg, struct devlink *devlink, | |
7324 | const struct devlink_trap_policer *policer) | |
7325 | { | |
7326 | struct nlattr *attr; | |
7327 | u64 drops; | |
7328 | int err; | |
7329 | ||
7330 | if (!devlink->ops->trap_policer_counter_get) | |
7331 | return 0; | |
7332 | ||
7333 | err = devlink->ops->trap_policer_counter_get(devlink, policer, &drops); | |
7334 | if (err) | |
7335 | return err; | |
7336 | ||
7337 | attr = nla_nest_start(msg, DEVLINK_ATTR_STATS); | |
7338 | if (!attr) | |
7339 | return -EMSGSIZE; | |
7340 | ||
7341 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_STATS_RX_DROPPED, drops, | |
7342 | DEVLINK_ATTR_PAD)) | |
7343 | goto nla_put_failure; | |
7344 | ||
7345 | nla_nest_end(msg, attr); | |
7346 | ||
7347 | return 0; | |
7348 | ||
7349 | nla_put_failure: | |
7350 | nla_nest_cancel(msg, attr); | |
7351 | return -EMSGSIZE; | |
7352 | } | |
7353 | ||
7354 | static int | |
7355 | devlink_nl_trap_policer_fill(struct sk_buff *msg, struct devlink *devlink, | |
7356 | const struct devlink_trap_policer_item *policer_item, | |
7357 | enum devlink_command cmd, u32 portid, u32 seq, | |
7358 | int flags) | |
7359 | { | |
7360 | void *hdr; | |
7361 | int err; | |
7362 | ||
7363 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
7364 | if (!hdr) | |
7365 | return -EMSGSIZE; | |
7366 | ||
7367 | if (devlink_nl_put_handle(msg, devlink)) | |
7368 | goto nla_put_failure; | |
7369 | ||
7370 | if (nla_put_u32(msg, DEVLINK_ATTR_TRAP_POLICER_ID, | |
7371 | policer_item->policer->id)) | |
7372 | goto nla_put_failure; | |
7373 | ||
7374 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_TRAP_POLICER_RATE, | |
7375 | policer_item->rate, DEVLINK_ATTR_PAD)) | |
7376 | goto nla_put_failure; | |
7377 | ||
7378 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_TRAP_POLICER_BURST, | |
7379 | policer_item->burst, DEVLINK_ATTR_PAD)) | |
7380 | goto nla_put_failure; | |
7381 | ||
7382 | err = devlink_trap_policer_stats_put(msg, devlink, | |
7383 | policer_item->policer); | |
7384 | if (err) | |
7385 | goto nla_put_failure; | |
7386 | ||
7387 | genlmsg_end(msg, hdr); | |
7388 | ||
7389 | return 0; | |
7390 | ||
7391 | nla_put_failure: | |
7392 | genlmsg_cancel(msg, hdr); | |
7393 | return -EMSGSIZE; | |
7394 | } | |
7395 | ||
7396 | static int devlink_nl_cmd_trap_policer_get_doit(struct sk_buff *skb, | |
7397 | struct genl_info *info) | |
7398 | { | |
7399 | struct devlink_trap_policer_item *policer_item; | |
7400 | struct netlink_ext_ack *extack = info->extack; | |
7401 | struct devlink *devlink = info->user_ptr[0]; | |
7402 | struct sk_buff *msg; | |
7403 | int err; | |
7404 | ||
7405 | if (list_empty(&devlink->trap_policer_list)) | |
7406 | return -EOPNOTSUPP; | |
7407 | ||
7408 | policer_item = devlink_trap_policer_item_get_from_info(devlink, info); | |
7409 | if (!policer_item) { | |
7410 | NL_SET_ERR_MSG_MOD(extack, "Device did not register this trap policer"); | |
7411 | return -ENOENT; | |
7412 | } | |
7413 | ||
7414 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
7415 | if (!msg) | |
7416 | return -ENOMEM; | |
7417 | ||
7418 | err = devlink_nl_trap_policer_fill(msg, devlink, policer_item, | |
7419 | DEVLINK_CMD_TRAP_POLICER_NEW, | |
7420 | info->snd_portid, info->snd_seq, 0); | |
7421 | if (err) | |
7422 | goto err_trap_policer_fill; | |
7423 | ||
7424 | return genlmsg_reply(msg, info); | |
7425 | ||
7426 | err_trap_policer_fill: | |
7427 | nlmsg_free(msg); | |
7428 | return err; | |
7429 | } | |
7430 | ||
7431 | static int devlink_nl_cmd_trap_policer_get_dumpit(struct sk_buff *msg, | |
7432 | struct netlink_callback *cb) | |
7433 | { | |
7434 | enum devlink_command cmd = DEVLINK_CMD_TRAP_POLICER_NEW; | |
7435 | struct devlink_trap_policer_item *policer_item; | |
7436 | u32 portid = NETLINK_CB(cb->skb).portid; | |
7437 | struct devlink *devlink; | |
7438 | int start = cb->args[0]; | |
7439 | int idx = 0; | |
7440 | int err; | |
7441 | ||
7442 | mutex_lock(&devlink_mutex); | |
7443 | list_for_each_entry(devlink, &devlink_list, list) { | |
7444 | if (!net_eq(devlink_net(devlink), sock_net(msg->sk))) | |
7445 | continue; | |
7446 | mutex_lock(&devlink->lock); | |
7447 | list_for_each_entry(policer_item, &devlink->trap_policer_list, | |
7448 | list) { | |
7449 | if (idx < start) { | |
7450 | idx++; | |
7451 | continue; | |
7452 | } | |
7453 | err = devlink_nl_trap_policer_fill(msg, devlink, | |
7454 | policer_item, cmd, | |
7455 | portid, | |
7456 | cb->nlh->nlmsg_seq, | |
7457 | NLM_F_MULTI); | |
7458 | if (err) { | |
7459 | mutex_unlock(&devlink->lock); | |
7460 | goto out; | |
7461 | } | |
7462 | idx++; | |
7463 | } | |
7464 | mutex_unlock(&devlink->lock); | |
7465 | } | |
7466 | out: | |
7467 | mutex_unlock(&devlink_mutex); | |
7468 | ||
7469 | cb->args[0] = idx; | |
7470 | return msg->len; | |
7471 | } | |
7472 | ||
7473 | static int | |
7474 | devlink_trap_policer_set(struct devlink *devlink, | |
7475 | struct devlink_trap_policer_item *policer_item, | |
7476 | struct genl_info *info) | |
7477 | { | |
7478 | struct netlink_ext_ack *extack = info->extack; | |
7479 | struct nlattr **attrs = info->attrs; | |
7480 | u64 rate, burst; | |
7481 | int err; | |
7482 | ||
7483 | rate = policer_item->rate; | |
7484 | burst = policer_item->burst; | |
7485 | ||
7486 | if (attrs[DEVLINK_ATTR_TRAP_POLICER_RATE]) | |
7487 | rate = nla_get_u64(attrs[DEVLINK_ATTR_TRAP_POLICER_RATE]); | |
7488 | ||
7489 | if (attrs[DEVLINK_ATTR_TRAP_POLICER_BURST]) | |
7490 | burst = nla_get_u64(attrs[DEVLINK_ATTR_TRAP_POLICER_BURST]); | |
7491 | ||
7492 | if (rate < policer_item->policer->min_rate) { | |
7493 | NL_SET_ERR_MSG_MOD(extack, "Policer rate lower than limit"); | |
7494 | return -EINVAL; | |
7495 | } | |
7496 | ||
7497 | if (rate > policer_item->policer->max_rate) { | |
7498 | NL_SET_ERR_MSG_MOD(extack, "Policer rate higher than limit"); | |
7499 | return -EINVAL; | |
7500 | } | |
7501 | ||
7502 | if (burst < policer_item->policer->min_burst) { | |
7503 | NL_SET_ERR_MSG_MOD(extack, "Policer burst size lower than limit"); | |
7504 | return -EINVAL; | |
7505 | } | |
7506 | ||
7507 | if (burst > policer_item->policer->max_burst) { | |
7508 | NL_SET_ERR_MSG_MOD(extack, "Policer burst size higher than limit"); | |
7509 | return -EINVAL; | |
7510 | } | |
7511 | ||
7512 | err = devlink->ops->trap_policer_set(devlink, policer_item->policer, | |
7513 | rate, burst, info->extack); | |
7514 | if (err) | |
7515 | return err; | |
7516 | ||
7517 | policer_item->rate = rate; | |
7518 | policer_item->burst = burst; | |
7519 | ||
7520 | return 0; | |
7521 | } | |
7522 | ||
7523 | static int devlink_nl_cmd_trap_policer_set_doit(struct sk_buff *skb, | |
7524 | struct genl_info *info) | |
7525 | { | |
7526 | struct devlink_trap_policer_item *policer_item; | |
7527 | struct netlink_ext_ack *extack = info->extack; | |
7528 | struct devlink *devlink = info->user_ptr[0]; | |
7529 | ||
7530 | if (list_empty(&devlink->trap_policer_list)) | |
7531 | return -EOPNOTSUPP; | |
7532 | ||
7533 | if (!devlink->ops->trap_policer_set) | |
7534 | return -EOPNOTSUPP; | |
7535 | ||
7536 | policer_item = devlink_trap_policer_item_get_from_info(devlink, info); | |
7537 | if (!policer_item) { | |
7538 | NL_SET_ERR_MSG_MOD(extack, "Device did not register this trap policer"); | |
7539 | return -ENOENT; | |
7540 | } | |
7541 | ||
7542 | return devlink_trap_policer_set(devlink, policer_item, info); | |
7543 | } | |
7544 | ||
bfcd3a46 | 7545 | static const struct nla_policy devlink_nl_policy[DEVLINK_ATTR_MAX + 1] = { |
1e8c6619 IS |
7546 | [DEVLINK_ATTR_UNSPEC] = { .strict_start_type = |
7547 | DEVLINK_ATTR_TRAP_POLICER_ID }, | |
bfcd3a46 JP |
7548 | [DEVLINK_ATTR_BUS_NAME] = { .type = NLA_NUL_STRING }, |
7549 | [DEVLINK_ATTR_DEV_NAME] = { .type = NLA_NUL_STRING }, | |
7550 | [DEVLINK_ATTR_PORT_INDEX] = { .type = NLA_U32 }, | |
c49a9440 PP |
7551 | [DEVLINK_ATTR_PORT_TYPE] = NLA_POLICY_RANGE(NLA_U16, DEVLINK_PORT_TYPE_AUTO, |
7552 | DEVLINK_PORT_TYPE_IB), | |
bfcd3a46 | 7553 | [DEVLINK_ATTR_PORT_SPLIT_COUNT] = { .type = NLA_U32 }, |
bf797471 JP |
7554 | [DEVLINK_ATTR_SB_INDEX] = { .type = NLA_U32 }, |
7555 | [DEVLINK_ATTR_SB_POOL_INDEX] = { .type = NLA_U16 }, | |
7556 | [DEVLINK_ATTR_SB_POOL_TYPE] = { .type = NLA_U8 }, | |
7557 | [DEVLINK_ATTR_SB_POOL_SIZE] = { .type = NLA_U32 }, | |
7558 | [DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE] = { .type = NLA_U8 }, | |
7559 | [DEVLINK_ATTR_SB_THRESHOLD] = { .type = NLA_U32 }, | |
7560 | [DEVLINK_ATTR_SB_TC_INDEX] = { .type = NLA_U16 }, | |
ba356c90 PP |
7561 | [DEVLINK_ATTR_ESWITCH_MODE] = NLA_POLICY_RANGE(NLA_U16, DEVLINK_ESWITCH_MODE_LEGACY, |
7562 | DEVLINK_ESWITCH_MODE_SWITCHDEV), | |
59bfde01 | 7563 | [DEVLINK_ATTR_ESWITCH_INLINE_MODE] = { .type = NLA_U8 }, |
f43e9b06 | 7564 | [DEVLINK_ATTR_ESWITCH_ENCAP_MODE] = { .type = NLA_U8 }, |
1555d204 AS |
7565 | [DEVLINK_ATTR_DPIPE_TABLE_NAME] = { .type = NLA_NUL_STRING }, |
7566 | [DEVLINK_ATTR_DPIPE_TABLE_COUNTERS_ENABLED] = { .type = NLA_U8 }, | |
d9f9b9a4 AS |
7567 | [DEVLINK_ATTR_RESOURCE_ID] = { .type = NLA_U64}, |
7568 | [DEVLINK_ATTR_RESOURCE_SIZE] = { .type = NLA_U64}, | |
e3b7ca18 MS |
7569 | [DEVLINK_ATTR_PARAM_NAME] = { .type = NLA_NUL_STRING }, |
7570 | [DEVLINK_ATTR_PARAM_TYPE] = { .type = NLA_U8 }, | |
7571 | [DEVLINK_ATTR_PARAM_VALUE_CMODE] = { .type = NLA_U8 }, | |
d8db7ea5 | 7572 | [DEVLINK_ATTR_REGION_NAME] = { .type = NLA_NUL_STRING }, |
866319bb | 7573 | [DEVLINK_ATTR_REGION_SNAPSHOT_ID] = { .type = NLA_U32 }, |
ff3b63b8 JK |
7574 | [DEVLINK_ATTR_REGION_CHUNK_ADDR] = { .type = NLA_U64 }, |
7575 | [DEVLINK_ATTR_REGION_CHUNK_LEN] = { .type = NLA_U64 }, | |
7afe335a | 7576 | [DEVLINK_ATTR_HEALTH_REPORTER_NAME] = { .type = NLA_NUL_STRING }, |
a1e55ec0 EBE |
7577 | [DEVLINK_ATTR_HEALTH_REPORTER_GRACEFUL_PERIOD] = { .type = NLA_U64 }, |
7578 | [DEVLINK_ATTR_HEALTH_REPORTER_AUTO_RECOVER] = { .type = NLA_U8 }, | |
76726ccb JK |
7579 | [DEVLINK_ATTR_FLASH_UPDATE_FILE_NAME] = { .type = NLA_NUL_STRING }, |
7580 | [DEVLINK_ATTR_FLASH_UPDATE_COMPONENT] = { .type = NLA_NUL_STRING }, | |
5d5b4128 JK |
7581 | [DEVLINK_ATTR_FLASH_UPDATE_OVERWRITE_MASK] = |
7582 | NLA_POLICY_BITFIELD32(DEVLINK_SUPPORTED_FLASH_OVERWRITE_SECTIONS), | |
0f420b6c IS |
7583 | [DEVLINK_ATTR_TRAP_NAME] = { .type = NLA_NUL_STRING }, |
7584 | [DEVLINK_ATTR_TRAP_ACTION] = { .type = NLA_U8 }, | |
7585 | [DEVLINK_ATTR_TRAP_GROUP_NAME] = { .type = NLA_NUL_STRING }, | |
070c63f2 JP |
7586 | [DEVLINK_ATTR_NETNS_PID] = { .type = NLA_U32 }, |
7587 | [DEVLINK_ATTR_NETNS_FD] = { .type = NLA_U32 }, | |
7588 | [DEVLINK_ATTR_NETNS_ID] = { .type = NLA_U32 }, | |
48bb52c8 | 7589 | [DEVLINK_ATTR_HEALTH_REPORTER_AUTO_DUMP] = { .type = NLA_U8 }, |
1e8c6619 IS |
7590 | [DEVLINK_ATTR_TRAP_POLICER_ID] = { .type = NLA_U32 }, |
7591 | [DEVLINK_ATTR_TRAP_POLICER_RATE] = { .type = NLA_U64 }, | |
7592 | [DEVLINK_ATTR_TRAP_POLICER_BURST] = { .type = NLA_U64 }, | |
a1e8ae90 | 7593 | [DEVLINK_ATTR_PORT_FUNCTION] = { .type = NLA_NESTED }, |
ccdf0721 MS |
7594 | [DEVLINK_ATTR_RELOAD_ACTION] = NLA_POLICY_RANGE(NLA_U8, DEVLINK_RELOAD_ACTION_DRIVER_REINIT, |
7595 | DEVLINK_RELOAD_ACTION_MAX), | |
dc64cc7c | 7596 | [DEVLINK_ATTR_RELOAD_LIMITS] = NLA_POLICY_BITFIELD32(DEVLINK_RELOAD_LIMITS_VALID_MASK), |
bfcd3a46 JP |
7597 | }; |
7598 | ||
66a9b928 | 7599 | static const struct genl_small_ops devlink_nl_ops[] = { |
bfcd3a46 JP |
7600 | { |
7601 | .cmd = DEVLINK_CMD_GET, | |
ef6243ac | 7602 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bfcd3a46 JP |
7603 | .doit = devlink_nl_cmd_get_doit, |
7604 | .dumpit = devlink_nl_cmd_get_dumpit, | |
bfcd3a46 JP |
7605 | /* can be retrieved by unprivileged users */ |
7606 | }, | |
7607 | { | |
7608 | .cmd = DEVLINK_CMD_PORT_GET, | |
ef6243ac | 7609 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bfcd3a46 JP |
7610 | .doit = devlink_nl_cmd_port_get_doit, |
7611 | .dumpit = devlink_nl_cmd_port_get_dumpit, | |
bfcd3a46 JP |
7612 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, |
7613 | /* can be retrieved by unprivileged users */ | |
7614 | }, | |
7615 | { | |
7616 | .cmd = DEVLINK_CMD_PORT_SET, | |
ef6243ac | 7617 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bfcd3a46 | 7618 | .doit = devlink_nl_cmd_port_set_doit, |
bfcd3a46 JP |
7619 | .flags = GENL_ADMIN_PERM, |
7620 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, | |
7621 | }, | |
7622 | { | |
7623 | .cmd = DEVLINK_CMD_PORT_SPLIT, | |
ef6243ac | 7624 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bfcd3a46 | 7625 | .doit = devlink_nl_cmd_port_split_doit, |
bfcd3a46 | 7626 | .flags = GENL_ADMIN_PERM, |
637989b5 | 7627 | .internal_flags = DEVLINK_NL_FLAG_NO_LOCK, |
bfcd3a46 JP |
7628 | }, |
7629 | { | |
7630 | .cmd = DEVLINK_CMD_PORT_UNSPLIT, | |
ef6243ac | 7631 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bfcd3a46 | 7632 | .doit = devlink_nl_cmd_port_unsplit_doit, |
bfcd3a46 | 7633 | .flags = GENL_ADMIN_PERM, |
637989b5 | 7634 | .internal_flags = DEVLINK_NL_FLAG_NO_LOCK, |
bfcd3a46 | 7635 | }, |
bf797471 JP |
7636 | { |
7637 | .cmd = DEVLINK_CMD_SB_GET, | |
ef6243ac | 7638 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bf797471 JP |
7639 | .doit = devlink_nl_cmd_sb_get_doit, |
7640 | .dumpit = devlink_nl_cmd_sb_get_dumpit, | |
bf797471 JP |
7641 | /* can be retrieved by unprivileged users */ |
7642 | }, | |
7643 | { | |
7644 | .cmd = DEVLINK_CMD_SB_POOL_GET, | |
ef6243ac | 7645 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bf797471 JP |
7646 | .doit = devlink_nl_cmd_sb_pool_get_doit, |
7647 | .dumpit = devlink_nl_cmd_sb_pool_get_dumpit, | |
bf797471 JP |
7648 | /* can be retrieved by unprivileged users */ |
7649 | }, | |
7650 | { | |
7651 | .cmd = DEVLINK_CMD_SB_POOL_SET, | |
ef6243ac | 7652 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bf797471 | 7653 | .doit = devlink_nl_cmd_sb_pool_set_doit, |
bf797471 | 7654 | .flags = GENL_ADMIN_PERM, |
bf797471 JP |
7655 | }, |
7656 | { | |
7657 | .cmd = DEVLINK_CMD_SB_PORT_POOL_GET, | |
ef6243ac | 7658 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bf797471 JP |
7659 | .doit = devlink_nl_cmd_sb_port_pool_get_doit, |
7660 | .dumpit = devlink_nl_cmd_sb_port_pool_get_dumpit, | |
637989b5 | 7661 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, |
bf797471 JP |
7662 | /* can be retrieved by unprivileged users */ |
7663 | }, | |
7664 | { | |
7665 | .cmd = DEVLINK_CMD_SB_PORT_POOL_SET, | |
ef6243ac | 7666 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bf797471 | 7667 | .doit = devlink_nl_cmd_sb_port_pool_set_doit, |
bf797471 | 7668 | .flags = GENL_ADMIN_PERM, |
637989b5 | 7669 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, |
bf797471 JP |
7670 | }, |
7671 | { | |
7672 | .cmd = DEVLINK_CMD_SB_TC_POOL_BIND_GET, | |
ef6243ac | 7673 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bf797471 JP |
7674 | .doit = devlink_nl_cmd_sb_tc_pool_bind_get_doit, |
7675 | .dumpit = devlink_nl_cmd_sb_tc_pool_bind_get_dumpit, | |
637989b5 | 7676 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, |
bf797471 JP |
7677 | /* can be retrieved by unprivileged users */ |
7678 | }, | |
7679 | { | |
7680 | .cmd = DEVLINK_CMD_SB_TC_POOL_BIND_SET, | |
ef6243ac | 7681 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bf797471 | 7682 | .doit = devlink_nl_cmd_sb_tc_pool_bind_set_doit, |
bf797471 | 7683 | .flags = GENL_ADMIN_PERM, |
637989b5 | 7684 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, |
bf797471 | 7685 | }, |
df38dafd JP |
7686 | { |
7687 | .cmd = DEVLINK_CMD_SB_OCC_SNAPSHOT, | |
ef6243ac | 7688 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
df38dafd | 7689 | .doit = devlink_nl_cmd_sb_occ_snapshot_doit, |
df38dafd | 7690 | .flags = GENL_ADMIN_PERM, |
df38dafd JP |
7691 | }, |
7692 | { | |
7693 | .cmd = DEVLINK_CMD_SB_OCC_MAX_CLEAR, | |
ef6243ac | 7694 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
df38dafd | 7695 | .doit = devlink_nl_cmd_sb_occ_max_clear_doit, |
df38dafd | 7696 | .flags = GENL_ADMIN_PERM, |
df38dafd | 7697 | }, |
08f4b591 | 7698 | { |
adf200f3 | 7699 | .cmd = DEVLINK_CMD_ESWITCH_GET, |
ef6243ac | 7700 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
adf200f3 | 7701 | .doit = devlink_nl_cmd_eswitch_get_doit, |
08f4b591 | 7702 | .flags = GENL_ADMIN_PERM, |
637989b5 | 7703 | .internal_flags = DEVLINK_NL_FLAG_NO_LOCK, |
08f4b591 OG |
7704 | }, |
7705 | { | |
adf200f3 | 7706 | .cmd = DEVLINK_CMD_ESWITCH_SET, |
ef6243ac | 7707 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
adf200f3 | 7708 | .doit = devlink_nl_cmd_eswitch_set_doit, |
08f4b591 | 7709 | .flags = GENL_ADMIN_PERM, |
637989b5 | 7710 | .internal_flags = DEVLINK_NL_FLAG_NO_LOCK, |
08f4b591 | 7711 | }, |
1555d204 AS |
7712 | { |
7713 | .cmd = DEVLINK_CMD_DPIPE_TABLE_GET, | |
ef6243ac | 7714 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
1555d204 | 7715 | .doit = devlink_nl_cmd_dpipe_table_get, |
67ae686b | 7716 | /* can be retrieved by unprivileged users */ |
1555d204 AS |
7717 | }, |
7718 | { | |
7719 | .cmd = DEVLINK_CMD_DPIPE_ENTRIES_GET, | |
ef6243ac | 7720 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
1555d204 | 7721 | .doit = devlink_nl_cmd_dpipe_entries_get, |
67ae686b | 7722 | /* can be retrieved by unprivileged users */ |
1555d204 AS |
7723 | }, |
7724 | { | |
7725 | .cmd = DEVLINK_CMD_DPIPE_HEADERS_GET, | |
ef6243ac | 7726 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
1555d204 | 7727 | .doit = devlink_nl_cmd_dpipe_headers_get, |
67ae686b | 7728 | /* can be retrieved by unprivileged users */ |
1555d204 AS |
7729 | }, |
7730 | { | |
7731 | .cmd = DEVLINK_CMD_DPIPE_TABLE_COUNTERS_SET, | |
ef6243ac | 7732 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
1555d204 | 7733 | .doit = devlink_nl_cmd_dpipe_table_counters_set, |
1555d204 | 7734 | .flags = GENL_ADMIN_PERM, |
1555d204 | 7735 | }, |
d9f9b9a4 AS |
7736 | { |
7737 | .cmd = DEVLINK_CMD_RESOURCE_SET, | |
ef6243ac | 7738 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
d9f9b9a4 | 7739 | .doit = devlink_nl_cmd_resource_set, |
d9f9b9a4 | 7740 | .flags = GENL_ADMIN_PERM, |
d9f9b9a4 AS |
7741 | }, |
7742 | { | |
7743 | .cmd = DEVLINK_CMD_RESOURCE_DUMP, | |
ef6243ac | 7744 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
d9f9b9a4 | 7745 | .doit = devlink_nl_cmd_resource_dump, |
67ae686b | 7746 | /* can be retrieved by unprivileged users */ |
d9f9b9a4 | 7747 | }, |
2d8dc5bb AS |
7748 | { |
7749 | .cmd = DEVLINK_CMD_RELOAD, | |
ef6243ac | 7750 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
2d8dc5bb | 7751 | .doit = devlink_nl_cmd_reload, |
2d8dc5bb | 7752 | .flags = GENL_ADMIN_PERM, |
637989b5 | 7753 | .internal_flags = DEVLINK_NL_FLAG_NO_LOCK, |
2d8dc5bb | 7754 | }, |
45f05def MS |
7755 | { |
7756 | .cmd = DEVLINK_CMD_PARAM_GET, | |
ef6243ac | 7757 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
45f05def MS |
7758 | .doit = devlink_nl_cmd_param_get_doit, |
7759 | .dumpit = devlink_nl_cmd_param_get_dumpit, | |
45f05def MS |
7760 | /* can be retrieved by unprivileged users */ |
7761 | }, | |
e3b7ca18 MS |
7762 | { |
7763 | .cmd = DEVLINK_CMD_PARAM_SET, | |
ef6243ac | 7764 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
e3b7ca18 | 7765 | .doit = devlink_nl_cmd_param_set_doit, |
e3b7ca18 | 7766 | .flags = GENL_ADMIN_PERM, |
e3b7ca18 | 7767 | }, |
f4601dee VV |
7768 | { |
7769 | .cmd = DEVLINK_CMD_PORT_PARAM_GET, | |
ef6243ac | 7770 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
f4601dee VV |
7771 | .doit = devlink_nl_cmd_port_param_get_doit, |
7772 | .dumpit = devlink_nl_cmd_port_param_get_dumpit, | |
f4601dee VV |
7773 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, |
7774 | /* can be retrieved by unprivileged users */ | |
7775 | }, | |
9c54873b VV |
7776 | { |
7777 | .cmd = DEVLINK_CMD_PORT_PARAM_SET, | |
ef6243ac | 7778 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
9c54873b | 7779 | .doit = devlink_nl_cmd_port_param_set_doit, |
9c54873b VV |
7780 | .flags = GENL_ADMIN_PERM, |
7781 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, | |
7782 | }, | |
d8db7ea5 AV |
7783 | { |
7784 | .cmd = DEVLINK_CMD_REGION_GET, | |
ef6243ac | 7785 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
d8db7ea5 AV |
7786 | .doit = devlink_nl_cmd_region_get_doit, |
7787 | .dumpit = devlink_nl_cmd_region_get_dumpit, | |
d8db7ea5 | 7788 | .flags = GENL_ADMIN_PERM, |
d8db7ea5 | 7789 | }, |
b9a17abf JK |
7790 | { |
7791 | .cmd = DEVLINK_CMD_REGION_NEW, | |
7792 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, | |
7793 | .doit = devlink_nl_cmd_region_new, | |
7794 | .flags = GENL_ADMIN_PERM, | |
b9a17abf | 7795 | }, |
866319bb AV |
7796 | { |
7797 | .cmd = DEVLINK_CMD_REGION_DEL, | |
ef6243ac | 7798 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
866319bb | 7799 | .doit = devlink_nl_cmd_region_del, |
866319bb | 7800 | .flags = GENL_ADMIN_PERM, |
866319bb | 7801 | }, |
4e54795a AV |
7802 | { |
7803 | .cmd = DEVLINK_CMD_REGION_READ, | |
ee85da53 JP |
7804 | .validate = GENL_DONT_VALIDATE_STRICT | |
7805 | GENL_DONT_VALIDATE_DUMP_STRICT, | |
4e54795a | 7806 | .dumpit = devlink_nl_cmd_region_read_dumpit, |
4e54795a | 7807 | .flags = GENL_ADMIN_PERM, |
4e54795a | 7808 | }, |
f9cf2288 JK |
7809 | { |
7810 | .cmd = DEVLINK_CMD_INFO_GET, | |
ef6243ac | 7811 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
f9cf2288 JK |
7812 | .doit = devlink_nl_cmd_info_get_doit, |
7813 | .dumpit = devlink_nl_cmd_info_get_dumpit, | |
f9cf2288 JK |
7814 | /* can be retrieved by unprivileged users */ |
7815 | }, | |
7afe335a EBE |
7816 | { |
7817 | .cmd = DEVLINK_CMD_HEALTH_REPORTER_GET, | |
ef6243ac | 7818 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
7afe335a EBE |
7819 | .doit = devlink_nl_cmd_health_reporter_get_doit, |
7820 | .dumpit = devlink_nl_cmd_health_reporter_get_dumpit, | |
f4f54166 | 7821 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT | |
b587bdaf | 7822 | DEVLINK_NL_FLAG_NO_LOCK, |
7afe335a EBE |
7823 | /* can be retrieved by unprivileged users */ |
7824 | }, | |
a1e55ec0 EBE |
7825 | { |
7826 | .cmd = DEVLINK_CMD_HEALTH_REPORTER_SET, | |
ef6243ac | 7827 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
a1e55ec0 | 7828 | .doit = devlink_nl_cmd_health_reporter_set_doit, |
a1e55ec0 | 7829 | .flags = GENL_ADMIN_PERM, |
f4f54166 | 7830 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT | |
b587bdaf | 7831 | DEVLINK_NL_FLAG_NO_LOCK, |
a1e55ec0 | 7832 | }, |
20a0943a EBE |
7833 | { |
7834 | .cmd = DEVLINK_CMD_HEALTH_REPORTER_RECOVER, | |
ef6243ac | 7835 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
20a0943a | 7836 | .doit = devlink_nl_cmd_health_reporter_recover_doit, |
20a0943a | 7837 | .flags = GENL_ADMIN_PERM, |
f4f54166 | 7838 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT | |
b587bdaf | 7839 | DEVLINK_NL_FLAG_NO_LOCK, |
20a0943a | 7840 | }, |
fca42a27 EBE |
7841 | { |
7842 | .cmd = DEVLINK_CMD_HEALTH_REPORTER_DIAGNOSE, | |
ef6243ac | 7843 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
fca42a27 | 7844 | .doit = devlink_nl_cmd_health_reporter_diagnose_doit, |
fca42a27 | 7845 | .flags = GENL_ADMIN_PERM, |
f4f54166 | 7846 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT | |
b587bdaf | 7847 | DEVLINK_NL_FLAG_NO_LOCK, |
fca42a27 | 7848 | }, |
35455e23 EBE |
7849 | { |
7850 | .cmd = DEVLINK_CMD_HEALTH_REPORTER_DUMP_GET, | |
82a843de JP |
7851 | .validate = GENL_DONT_VALIDATE_STRICT | |
7852 | GENL_DONT_VALIDATE_DUMP_STRICT, | |
e44ef4e4 | 7853 | .dumpit = devlink_nl_cmd_health_reporter_dump_get_dumpit, |
35455e23 | 7854 | .flags = GENL_ADMIN_PERM, |
f4f54166 | 7855 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT | |
35455e23 EBE |
7856 | DEVLINK_NL_FLAG_NO_LOCK, |
7857 | }, | |
7858 | { | |
7859 | .cmd = DEVLINK_CMD_HEALTH_REPORTER_DUMP_CLEAR, | |
ef6243ac | 7860 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
35455e23 | 7861 | .doit = devlink_nl_cmd_health_reporter_dump_clear_doit, |
35455e23 | 7862 | .flags = GENL_ADMIN_PERM, |
f4f54166 | 7863 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT | |
35455e23 EBE |
7864 | DEVLINK_NL_FLAG_NO_LOCK, |
7865 | }, | |
e2ce94dc JP |
7866 | { |
7867 | .cmd = DEVLINK_CMD_HEALTH_REPORTER_TEST, | |
7868 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, | |
7869 | .doit = devlink_nl_cmd_health_reporter_test_doit, | |
7870 | .flags = GENL_ADMIN_PERM, | |
7871 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT | | |
7872 | DEVLINK_NL_FLAG_NO_LOCK, | |
7873 | }, | |
76726ccb JK |
7874 | { |
7875 | .cmd = DEVLINK_CMD_FLASH_UPDATE, | |
ef6243ac | 7876 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
76726ccb | 7877 | .doit = devlink_nl_cmd_flash_update, |
76726ccb | 7878 | .flags = GENL_ADMIN_PERM, |
76726ccb | 7879 | }, |
0f420b6c IS |
7880 | { |
7881 | .cmd = DEVLINK_CMD_TRAP_GET, | |
7882 | .doit = devlink_nl_cmd_trap_get_doit, | |
7883 | .dumpit = devlink_nl_cmd_trap_get_dumpit, | |
0f420b6c IS |
7884 | /* can be retrieved by unprivileged users */ |
7885 | }, | |
7886 | { | |
7887 | .cmd = DEVLINK_CMD_TRAP_SET, | |
7888 | .doit = devlink_nl_cmd_trap_set_doit, | |
7889 | .flags = GENL_ADMIN_PERM, | |
0f420b6c IS |
7890 | }, |
7891 | { | |
7892 | .cmd = DEVLINK_CMD_TRAP_GROUP_GET, | |
7893 | .doit = devlink_nl_cmd_trap_group_get_doit, | |
7894 | .dumpit = devlink_nl_cmd_trap_group_get_dumpit, | |
0f420b6c IS |
7895 | /* can be retrieved by unprivileged users */ |
7896 | }, | |
7897 | { | |
7898 | .cmd = DEVLINK_CMD_TRAP_GROUP_SET, | |
7899 | .doit = devlink_nl_cmd_trap_group_set_doit, | |
7900 | .flags = GENL_ADMIN_PERM, | |
0f420b6c | 7901 | }, |
1e8c6619 IS |
7902 | { |
7903 | .cmd = DEVLINK_CMD_TRAP_POLICER_GET, | |
7904 | .doit = devlink_nl_cmd_trap_policer_get_doit, | |
7905 | .dumpit = devlink_nl_cmd_trap_policer_get_dumpit, | |
1e8c6619 IS |
7906 | /* can be retrieved by unprivileged users */ |
7907 | }, | |
7908 | { | |
7909 | .cmd = DEVLINK_CMD_TRAP_POLICER_SET, | |
7910 | .doit = devlink_nl_cmd_trap_policer_set_doit, | |
7911 | .flags = GENL_ADMIN_PERM, | |
1e8c6619 | 7912 | }, |
bfcd3a46 JP |
7913 | }; |
7914 | ||
56989f6d | 7915 | static struct genl_family devlink_nl_family __ro_after_init = { |
489111e5 JB |
7916 | .name = DEVLINK_GENL_NAME, |
7917 | .version = DEVLINK_GENL_VERSION, | |
7918 | .maxattr = DEVLINK_ATTR_MAX, | |
3b0f31f2 | 7919 | .policy = devlink_nl_policy, |
489111e5 JB |
7920 | .netnsok = true, |
7921 | .pre_doit = devlink_nl_pre_doit, | |
7922 | .post_doit = devlink_nl_post_doit, | |
7923 | .module = THIS_MODULE, | |
66a9b928 JK |
7924 | .small_ops = devlink_nl_ops, |
7925 | .n_small_ops = ARRAY_SIZE(devlink_nl_ops), | |
489111e5 JB |
7926 | .mcgrps = devlink_nl_mcgrps, |
7927 | .n_mcgrps = ARRAY_SIZE(devlink_nl_mcgrps), | |
7928 | }; | |
7929 | ||
ccdf0721 MS |
7930 | static bool devlink_reload_actions_valid(const struct devlink_ops *ops) |
7931 | { | |
dc64cc7c MS |
7932 | const struct devlink_reload_combination *comb; |
7933 | int i; | |
7934 | ||
ccdf0721 MS |
7935 | if (!devlink_reload_supported(ops)) { |
7936 | if (WARN_ON(ops->reload_actions)) | |
7937 | return false; | |
7938 | return true; | |
7939 | } | |
7940 | ||
7941 | if (WARN_ON(!ops->reload_actions || | |
7942 | ops->reload_actions & BIT(DEVLINK_RELOAD_ACTION_UNSPEC) || | |
7943 | ops->reload_actions >= BIT(__DEVLINK_RELOAD_ACTION_MAX))) | |
7944 | return false; | |
dc64cc7c MS |
7945 | |
7946 | if (WARN_ON(ops->reload_limits & BIT(DEVLINK_RELOAD_LIMIT_UNSPEC) || | |
7947 | ops->reload_limits >= BIT(__DEVLINK_RELOAD_LIMIT_MAX))) | |
7948 | return false; | |
7949 | ||
7950 | for (i = 0; i < ARRAY_SIZE(devlink_reload_invalid_combinations); i++) { | |
7951 | comb = &devlink_reload_invalid_combinations[i]; | |
7952 | if (ops->reload_actions == BIT(comb->action) && | |
7953 | ops->reload_limits == BIT(comb->limit)) | |
7954 | return false; | |
7955 | } | |
ccdf0721 MS |
7956 | return true; |
7957 | } | |
7958 | ||
bfcd3a46 JP |
7959 | /** |
7960 | * devlink_alloc - Allocate new devlink instance resources | |
7961 | * | |
7962 | * @ops: ops | |
7963 | * @priv_size: size of user private data | |
7964 | * | |
7965 | * Allocate new devlink instance resources, including devlink index | |
7966 | * and name. | |
7967 | */ | |
7968 | struct devlink *devlink_alloc(const struct devlink_ops *ops, size_t priv_size) | |
7969 | { | |
7970 | struct devlink *devlink; | |
7971 | ||
be6fe1d8 JK |
7972 | if (WARN_ON(!ops)) |
7973 | return NULL; | |
7974 | ||
ccdf0721 MS |
7975 | if (!devlink_reload_actions_valid(ops)) |
7976 | return NULL; | |
7977 | ||
bfcd3a46 JP |
7978 | devlink = kzalloc(sizeof(*devlink) + priv_size, GFP_KERNEL); |
7979 | if (!devlink) | |
7980 | return NULL; | |
7981 | devlink->ops = ops; | |
12102436 | 7982 | xa_init_flags(&devlink->snapshot_ids, XA_FLAGS_ALLOC); |
8273fd84 | 7983 | __devlink_net_set(devlink, &init_net); |
bfcd3a46 | 7984 | INIT_LIST_HEAD(&devlink->port_list); |
bf797471 | 7985 | INIT_LIST_HEAD(&devlink->sb_list); |
1555d204 | 7986 | INIT_LIST_HEAD_RCU(&devlink->dpipe_table_list); |
d9f9b9a4 | 7987 | INIT_LIST_HEAD(&devlink->resource_list); |
eabaef18 | 7988 | INIT_LIST_HEAD(&devlink->param_list); |
b16ebe92 | 7989 | INIT_LIST_HEAD(&devlink->region_list); |
a0bdcc59 | 7990 | INIT_LIST_HEAD(&devlink->reporter_list); |
0f420b6c IS |
7991 | INIT_LIST_HEAD(&devlink->trap_list); |
7992 | INIT_LIST_HEAD(&devlink->trap_group_list); | |
1e8c6619 | 7993 | INIT_LIST_HEAD(&devlink->trap_policer_list); |
2406e7e5 | 7994 | mutex_init(&devlink->lock); |
b587bdaf | 7995 | mutex_init(&devlink->reporters_lock); |
bfcd3a46 JP |
7996 | return devlink; |
7997 | } | |
7998 | EXPORT_SYMBOL_GPL(devlink_alloc); | |
7999 | ||
8000 | /** | |
8001 | * devlink_register - Register devlink instance | |
8002 | * | |
8003 | * @devlink: devlink | |
eeaadd82 | 8004 | * @dev: parent device |
bfcd3a46 JP |
8005 | */ |
8006 | int devlink_register(struct devlink *devlink, struct device *dev) | |
8007 | { | |
bfcd3a46 | 8008 | devlink->dev = dev; |
8273fd84 | 8009 | devlink->registered = true; |
6553e561 | 8010 | mutex_lock(&devlink_mutex); |
bfcd3a46 JP |
8011 | list_add_tail(&devlink->list, &devlink_list); |
8012 | devlink_notify(devlink, DEVLINK_CMD_NEW); | |
8013 | mutex_unlock(&devlink_mutex); | |
8014 | return 0; | |
8015 | } | |
8016 | EXPORT_SYMBOL_GPL(devlink_register); | |
8017 | ||
8018 | /** | |
8019 | * devlink_unregister - Unregister devlink instance | |
8020 | * | |
8021 | * @devlink: devlink | |
8022 | */ | |
8023 | void devlink_unregister(struct devlink *devlink) | |
8024 | { | |
8025 | mutex_lock(&devlink_mutex); | |
69d56e0e | 8026 | WARN_ON(devlink_reload_supported(devlink->ops) && |
a0c76345 | 8027 | devlink->reload_enabled); |
bfcd3a46 JP |
8028 | devlink_notify(devlink, DEVLINK_CMD_DEL); |
8029 | list_del(&devlink->list); | |
8030 | mutex_unlock(&devlink_mutex); | |
8031 | } | |
8032 | EXPORT_SYMBOL_GPL(devlink_unregister); | |
8033 | ||
a0c76345 JP |
8034 | /** |
8035 | * devlink_reload_enable - Enable reload of devlink instance | |
8036 | * | |
8037 | * @devlink: devlink | |
8038 | * | |
8039 | * Should be called at end of device initialization | |
8040 | * process when reload operation is supported. | |
8041 | */ | |
8042 | void devlink_reload_enable(struct devlink *devlink) | |
8043 | { | |
8044 | mutex_lock(&devlink_mutex); | |
8045 | devlink->reload_enabled = true; | |
8046 | mutex_unlock(&devlink_mutex); | |
8047 | } | |
8048 | EXPORT_SYMBOL_GPL(devlink_reload_enable); | |
8049 | ||
8050 | /** | |
8051 | * devlink_reload_disable - Disable reload of devlink instance | |
8052 | * | |
8053 | * @devlink: devlink | |
8054 | * | |
8055 | * Should be called at the beginning of device cleanup | |
8056 | * process when reload operation is supported. | |
8057 | */ | |
8058 | void devlink_reload_disable(struct devlink *devlink) | |
8059 | { | |
8060 | mutex_lock(&devlink_mutex); | |
8061 | /* Mutex is taken which ensures that no reload operation is in | |
8062 | * progress while setting up forbidded flag. | |
8063 | */ | |
8064 | devlink->reload_enabled = false; | |
8065 | mutex_unlock(&devlink_mutex); | |
8066 | } | |
8067 | EXPORT_SYMBOL_GPL(devlink_reload_disable); | |
8068 | ||
bfcd3a46 JP |
8069 | /** |
8070 | * devlink_free - Free devlink instance resources | |
8071 | * | |
8072 | * @devlink: devlink | |
8073 | */ | |
8074 | void devlink_free(struct devlink *devlink) | |
8075 | { | |
b587bdaf | 8076 | mutex_destroy(&devlink->reporters_lock); |
375cf8c6 | 8077 | mutex_destroy(&devlink->lock); |
1e8c6619 | 8078 | WARN_ON(!list_empty(&devlink->trap_policer_list)); |
0f420b6c IS |
8079 | WARN_ON(!list_empty(&devlink->trap_group_list)); |
8080 | WARN_ON(!list_empty(&devlink->trap_list)); | |
b904aada PP |
8081 | WARN_ON(!list_empty(&devlink->reporter_list)); |
8082 | WARN_ON(!list_empty(&devlink->region_list)); | |
8083 | WARN_ON(!list_empty(&devlink->param_list)); | |
8084 | WARN_ON(!list_empty(&devlink->resource_list)); | |
8085 | WARN_ON(!list_empty(&devlink->dpipe_table_list)); | |
8086 | WARN_ON(!list_empty(&devlink->sb_list)); | |
8087 | WARN_ON(!list_empty(&devlink->port_list)); | |
8088 | ||
12102436 JK |
8089 | xa_destroy(&devlink->snapshot_ids); |
8090 | ||
bfcd3a46 JP |
8091 | kfree(devlink); |
8092 | } | |
8093 | EXPORT_SYMBOL_GPL(devlink_free); | |
8094 | ||
136bf27f JP |
8095 | static void devlink_port_type_warn(struct work_struct *work) |
8096 | { | |
8097 | WARN(true, "Type was not set for devlink port."); | |
8098 | } | |
8099 | ||
8100 | static bool devlink_port_type_should_warn(struct devlink_port *devlink_port) | |
8101 | { | |
8102 | /* Ignore CPU and DSA flavours. */ | |
8103 | return devlink_port->attrs.flavour != DEVLINK_PORT_FLAVOUR_CPU && | |
cf116634 AL |
8104 | devlink_port->attrs.flavour != DEVLINK_PORT_FLAVOUR_DSA && |
8105 | devlink_port->attrs.flavour != DEVLINK_PORT_FLAVOUR_UNUSED; | |
136bf27f JP |
8106 | } |
8107 | ||
4c582234 | 8108 | #define DEVLINK_PORT_TYPE_WARN_TIMEOUT (HZ * 3600) |
136bf27f JP |
8109 | |
8110 | static void devlink_port_type_warn_schedule(struct devlink_port *devlink_port) | |
8111 | { | |
8112 | if (!devlink_port_type_should_warn(devlink_port)) | |
8113 | return; | |
8114 | /* Schedule a work to WARN in case driver does not set port | |
8115 | * type within timeout. | |
8116 | */ | |
8117 | schedule_delayed_work(&devlink_port->type_warn_dw, | |
8118 | DEVLINK_PORT_TYPE_WARN_TIMEOUT); | |
8119 | } | |
8120 | ||
8121 | static void devlink_port_type_warn_cancel(struct devlink_port *devlink_port) | |
8122 | { | |
8123 | if (!devlink_port_type_should_warn(devlink_port)) | |
8124 | return; | |
8125 | cancel_delayed_work_sync(&devlink_port->type_warn_dw); | |
8126 | } | |
8127 | ||
bfcd3a46 JP |
8128 | /** |
8129 | * devlink_port_register - Register devlink port | |
8130 | * | |
8131 | * @devlink: devlink | |
8132 | * @devlink_port: devlink port | |
eeaadd82 | 8133 | * @port_index: driver-specific numerical identifier of the port |
bfcd3a46 JP |
8134 | * |
8135 | * Register devlink port with provided port index. User can use | |
8136 | * any indexing, even hw-related one. devlink_port structure | |
8137 | * is convenient to be embedded inside user driver private structure. | |
8138 | * Note that the caller should take care of zeroing the devlink_port | |
8139 | * structure. | |
8140 | */ | |
8141 | int devlink_port_register(struct devlink *devlink, | |
8142 | struct devlink_port *devlink_port, | |
8143 | unsigned int port_index) | |
8144 | { | |
2406e7e5 | 8145 | mutex_lock(&devlink->lock); |
bfcd3a46 | 8146 | if (devlink_port_index_exists(devlink, port_index)) { |
2406e7e5 | 8147 | mutex_unlock(&devlink->lock); |
bfcd3a46 JP |
8148 | return -EEXIST; |
8149 | } | |
8150 | devlink_port->devlink = devlink; | |
8151 | devlink_port->index = port_index; | |
bfcd3a46 | 8152 | devlink_port->registered = true; |
b8f97554 | 8153 | spin_lock_init(&devlink_port->type_lock); |
79604c5d PP |
8154 | INIT_LIST_HEAD(&devlink_port->reporter_list); |
8155 | mutex_init(&devlink_port->reporters_lock); | |
bfcd3a46 | 8156 | list_add_tail(&devlink_port->list, &devlink->port_list); |
39e6160e | 8157 | INIT_LIST_HEAD(&devlink_port->param_list); |
544e7c33 | 8158 | INIT_LIST_HEAD(&devlink_port->region_list); |
2406e7e5 | 8159 | mutex_unlock(&devlink->lock); |
136bf27f JP |
8160 | INIT_DELAYED_WORK(&devlink_port->type_warn_dw, &devlink_port_type_warn); |
8161 | devlink_port_type_warn_schedule(devlink_port); | |
bfcd3a46 JP |
8162 | devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_NEW); |
8163 | return 0; | |
8164 | } | |
8165 | EXPORT_SYMBOL_GPL(devlink_port_register); | |
8166 | ||
8167 | /** | |
8168 | * devlink_port_unregister - Unregister devlink port | |
8169 | * | |
8170 | * @devlink_port: devlink port | |
8171 | */ | |
8172 | void devlink_port_unregister(struct devlink_port *devlink_port) | |
8173 | { | |
2406e7e5 AS |
8174 | struct devlink *devlink = devlink_port->devlink; |
8175 | ||
136bf27f | 8176 | devlink_port_type_warn_cancel(devlink_port); |
bfcd3a46 | 8177 | devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_DEL); |
2406e7e5 | 8178 | mutex_lock(&devlink->lock); |
bfcd3a46 | 8179 | list_del(&devlink_port->list); |
2406e7e5 | 8180 | mutex_unlock(&devlink->lock); |
79604c5d | 8181 | WARN_ON(!list_empty(&devlink_port->reporter_list)); |
544e7c33 | 8182 | WARN_ON(!list_empty(&devlink_port->region_list)); |
79604c5d | 8183 | mutex_destroy(&devlink_port->reporters_lock); |
bfcd3a46 JP |
8184 | } |
8185 | EXPORT_SYMBOL_GPL(devlink_port_unregister); | |
8186 | ||
8187 | static void __devlink_port_type_set(struct devlink_port *devlink_port, | |
8188 | enum devlink_port_type type, | |
8189 | void *type_dev) | |
8190 | { | |
2b239e70 JP |
8191 | if (WARN_ON(!devlink_port->registered)) |
8192 | return; | |
136bf27f | 8193 | devlink_port_type_warn_cancel(devlink_port); |
0f420b6c | 8194 | spin_lock_bh(&devlink_port->type_lock); |
bfcd3a46 JP |
8195 | devlink_port->type = type; |
8196 | devlink_port->type_dev = type_dev; | |
0f420b6c | 8197 | spin_unlock_bh(&devlink_port->type_lock); |
bfcd3a46 JP |
8198 | devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_NEW); |
8199 | } | |
8200 | ||
3ea87ca7 JK |
8201 | static void devlink_port_type_netdev_checks(struct devlink_port *devlink_port, |
8202 | struct net_device *netdev) | |
bfcd3a46 | 8203 | { |
119c0b57 JP |
8204 | const struct net_device_ops *ops = netdev->netdev_ops; |
8205 | ||
746364f2 JP |
8206 | /* If driver registers devlink port, it should set devlink port |
8207 | * attributes accordingly so the compat functions are called | |
8208 | * and the original ops are not used. | |
8209 | */ | |
119c0b57 | 8210 | if (ops->ndo_get_phys_port_name) { |
746364f2 JP |
8211 | /* Some drivers use the same set of ndos for netdevs |
8212 | * that have devlink_port registered and also for | |
8213 | * those who don't. Make sure that ndo_get_phys_port_name | |
8214 | * returns -EOPNOTSUPP here in case it is defined. | |
8215 | * Warn if not. | |
8216 | */ | |
746364f2 JP |
8217 | char name[IFNAMSIZ]; |
8218 | int err; | |
8219 | ||
8220 | err = ops->ndo_get_phys_port_name(netdev, name, sizeof(name)); | |
8221 | WARN_ON(err != -EOPNOTSUPP); | |
8222 | } | |
119c0b57 JP |
8223 | if (ops->ndo_get_port_parent_id) { |
8224 | /* Some drivers use the same set of ndos for netdevs | |
8225 | * that have devlink_port registered and also for | |
8226 | * those who don't. Make sure that ndo_get_port_parent_id | |
8227 | * returns -EOPNOTSUPP here in case it is defined. | |
8228 | * Warn if not. | |
8229 | */ | |
8230 | struct netdev_phys_item_id ppid; | |
8231 | int err; | |
8232 | ||
8233 | err = ops->ndo_get_port_parent_id(netdev, &ppid); | |
8234 | WARN_ON(err != -EOPNOTSUPP); | |
8235 | } | |
3ea87ca7 JK |
8236 | } |
8237 | ||
8238 | /** | |
8239 | * devlink_port_type_eth_set - Set port type to Ethernet | |
8240 | * | |
8241 | * @devlink_port: devlink port | |
8242 | * @netdev: related netdevice | |
8243 | */ | |
8244 | void devlink_port_type_eth_set(struct devlink_port *devlink_port, | |
8245 | struct net_device *netdev) | |
8246 | { | |
8247 | if (netdev) | |
8248 | devlink_port_type_netdev_checks(devlink_port, netdev); | |
8249 | else | |
8250 | dev_warn(devlink_port->devlink->dev, | |
8251 | "devlink port type for port %d set to Ethernet without a software interface reference, device type not supported by the kernel?\n", | |
8252 | devlink_port->index); | |
8253 | ||
773b1f38 | 8254 | __devlink_port_type_set(devlink_port, DEVLINK_PORT_TYPE_ETH, netdev); |
bfcd3a46 JP |
8255 | } |
8256 | EXPORT_SYMBOL_GPL(devlink_port_type_eth_set); | |
8257 | ||
8258 | /** | |
8259 | * devlink_port_type_ib_set - Set port type to InfiniBand | |
8260 | * | |
8261 | * @devlink_port: devlink port | |
8262 | * @ibdev: related IB device | |
8263 | */ | |
8264 | void devlink_port_type_ib_set(struct devlink_port *devlink_port, | |
8265 | struct ib_device *ibdev) | |
8266 | { | |
773b1f38 | 8267 | __devlink_port_type_set(devlink_port, DEVLINK_PORT_TYPE_IB, ibdev); |
bfcd3a46 JP |
8268 | } |
8269 | EXPORT_SYMBOL_GPL(devlink_port_type_ib_set); | |
8270 | ||
8271 | /** | |
8272 | * devlink_port_type_clear - Clear port type | |
8273 | * | |
8274 | * @devlink_port: devlink port | |
8275 | */ | |
8276 | void devlink_port_type_clear(struct devlink_port *devlink_port) | |
8277 | { | |
773b1f38 | 8278 | __devlink_port_type_set(devlink_port, DEVLINK_PORT_TYPE_NOTSET, NULL); |
136bf27f | 8279 | devlink_port_type_warn_schedule(devlink_port); |
bfcd3a46 JP |
8280 | } |
8281 | EXPORT_SYMBOL_GPL(devlink_port_type_clear); | |
8282 | ||
378ef01b | 8283 | static int __devlink_port_attrs_set(struct devlink_port *devlink_port, |
71ad8d55 | 8284 | enum devlink_port_flavour flavour) |
378ef01b PP |
8285 | { |
8286 | struct devlink_port_attrs *attrs = &devlink_port->attrs; | |
8287 | ||
10a429ba | 8288 | devlink_port->attrs_set = true; |
378ef01b | 8289 | attrs->flavour = flavour; |
71ad8d55 | 8290 | if (attrs->switch_id.id_len) { |
46737a19 | 8291 | devlink_port->switch_port = true; |
71ad8d55 DR |
8292 | if (WARN_ON(attrs->switch_id.id_len > MAX_PHYS_ITEM_ID_LEN)) |
8293 | attrs->switch_id.id_len = MAX_PHYS_ITEM_ID_LEN; | |
378ef01b | 8294 | } else { |
46737a19 | 8295 | devlink_port->switch_port = false; |
378ef01b PP |
8296 | } |
8297 | return 0; | |
8298 | } | |
8299 | ||
bfcd3a46 | 8300 | /** |
b9ffcbaf | 8301 | * devlink_port_attrs_set - Set port attributes |
bfcd3a46 JP |
8302 | * |
8303 | * @devlink_port: devlink port | |
71ad8d55 | 8304 | * @attrs: devlink port attrs |
bfcd3a46 | 8305 | */ |
b9ffcbaf | 8306 | void devlink_port_attrs_set(struct devlink_port *devlink_port, |
71ad8d55 | 8307 | struct devlink_port_attrs *attrs) |
bfcd3a46 | 8308 | { |
378ef01b | 8309 | int ret; |
b9ffcbaf | 8310 | |
9f73bd1c PP |
8311 | if (WARN_ON(devlink_port->registered)) |
8312 | return; | |
71ad8d55 DR |
8313 | devlink_port->attrs = *attrs; |
8314 | ret = __devlink_port_attrs_set(devlink_port, attrs->flavour); | |
378ef01b | 8315 | if (ret) |
45b86112 | 8316 | return; |
a0f49b54 | 8317 | WARN_ON(attrs->splittable && attrs->split); |
bfcd3a46 | 8318 | } |
b9ffcbaf | 8319 | EXPORT_SYMBOL_GPL(devlink_port_attrs_set); |
bfcd3a46 | 8320 | |
98fd2d65 PP |
8321 | /** |
8322 | * devlink_port_attrs_pci_pf_set - Set PCI PF port attributes | |
8323 | * | |
8324 | * @devlink_port: devlink port | |
3a2d9588 | 8325 | * @controller: associated controller number for the devlink port instance |
98fd2d65 | 8326 | * @pf: associated PF for the devlink port instance |
05b595e9 | 8327 | * @external: indicates if the port is for an external controller |
98fd2d65 | 8328 | */ |
3a2d9588 PP |
8329 | void devlink_port_attrs_pci_pf_set(struct devlink_port *devlink_port, u32 controller, |
8330 | u16 pf, bool external) | |
98fd2d65 PP |
8331 | { |
8332 | struct devlink_port_attrs *attrs = &devlink_port->attrs; | |
8333 | int ret; | |
8334 | ||
9f73bd1c PP |
8335 | if (WARN_ON(devlink_port->registered)) |
8336 | return; | |
98fd2d65 | 8337 | ret = __devlink_port_attrs_set(devlink_port, |
71ad8d55 | 8338 | DEVLINK_PORT_FLAVOUR_PCI_PF); |
98fd2d65 PP |
8339 | if (ret) |
8340 | return; | |
3a2d9588 | 8341 | attrs->pci_pf.controller = controller; |
98fd2d65 | 8342 | attrs->pci_pf.pf = pf; |
05b595e9 | 8343 | attrs->pci_pf.external = external; |
98fd2d65 PP |
8344 | } |
8345 | EXPORT_SYMBOL_GPL(devlink_port_attrs_pci_pf_set); | |
8346 | ||
e41b6bf3 PP |
8347 | /** |
8348 | * devlink_port_attrs_pci_vf_set - Set PCI VF port attributes | |
8349 | * | |
8350 | * @devlink_port: devlink port | |
3a2d9588 | 8351 | * @controller: associated controller number for the devlink port instance |
e41b6bf3 PP |
8352 | * @pf: associated PF for the devlink port instance |
8353 | * @vf: associated VF of a PF for the devlink port instance | |
05b595e9 | 8354 | * @external: indicates if the port is for an external controller |
e41b6bf3 | 8355 | */ |
3a2d9588 | 8356 | void devlink_port_attrs_pci_vf_set(struct devlink_port *devlink_port, u32 controller, |
05b595e9 | 8357 | u16 pf, u16 vf, bool external) |
e41b6bf3 PP |
8358 | { |
8359 | struct devlink_port_attrs *attrs = &devlink_port->attrs; | |
8360 | int ret; | |
8361 | ||
9f73bd1c PP |
8362 | if (WARN_ON(devlink_port->registered)) |
8363 | return; | |
e41b6bf3 | 8364 | ret = __devlink_port_attrs_set(devlink_port, |
71ad8d55 | 8365 | DEVLINK_PORT_FLAVOUR_PCI_VF); |
e41b6bf3 PP |
8366 | if (ret) |
8367 | return; | |
3a2d9588 | 8368 | attrs->pci_vf.controller = controller; |
e41b6bf3 PP |
8369 | attrs->pci_vf.pf = pf; |
8370 | attrs->pci_vf.vf = vf; | |
05b595e9 | 8371 | attrs->pci_vf.external = external; |
e41b6bf3 PP |
8372 | } |
8373 | EXPORT_SYMBOL_GPL(devlink_port_attrs_pci_vf_set); | |
8374 | ||
af3836df JP |
8375 | static int __devlink_port_phys_port_name_get(struct devlink_port *devlink_port, |
8376 | char *name, size_t len) | |
08474c1a JP |
8377 | { |
8378 | struct devlink_port_attrs *attrs = &devlink_port->attrs; | |
8379 | int n = 0; | |
8380 | ||
10a429ba | 8381 | if (!devlink_port->attrs_set) |
08474c1a JP |
8382 | return -EOPNOTSUPP; |
8383 | ||
8384 | switch (attrs->flavour) { | |
8385 | case DEVLINK_PORT_FLAVOUR_PHYSICAL: | |
acf1ee44 | 8386 | case DEVLINK_PORT_FLAVOUR_VIRTUAL: |
08474c1a | 8387 | if (!attrs->split) |
378ef01b | 8388 | n = snprintf(name, len, "p%u", attrs->phys.port_number); |
08474c1a | 8389 | else |
378ef01b PP |
8390 | n = snprintf(name, len, "p%us%u", |
8391 | attrs->phys.port_number, | |
8392 | attrs->phys.split_subport_number); | |
08474c1a JP |
8393 | break; |
8394 | case DEVLINK_PORT_FLAVOUR_CPU: | |
8395 | case DEVLINK_PORT_FLAVOUR_DSA: | |
cf116634 | 8396 | case DEVLINK_PORT_FLAVOUR_UNUSED: |
08474c1a JP |
8397 | /* As CPU and DSA ports do not have a netdevice associated |
8398 | * case should not ever happen. | |
8399 | */ | |
8400 | WARN_ON(1); | |
8401 | return -EINVAL; | |
98fd2d65 | 8402 | case DEVLINK_PORT_FLAVOUR_PCI_PF: |
66b17082 PP |
8403 | if (attrs->pci_pf.external) { |
8404 | n = snprintf(name, len, "c%u", attrs->pci_pf.controller); | |
8405 | if (n >= len) | |
8406 | return -EINVAL; | |
8407 | len -= n; | |
8408 | name += n; | |
8409 | } | |
98fd2d65 PP |
8410 | n = snprintf(name, len, "pf%u", attrs->pci_pf.pf); |
8411 | break; | |
e41b6bf3 | 8412 | case DEVLINK_PORT_FLAVOUR_PCI_VF: |
66b17082 PP |
8413 | if (attrs->pci_vf.external) { |
8414 | n = snprintf(name, len, "c%u", attrs->pci_vf.controller); | |
8415 | if (n >= len) | |
8416 | return -EINVAL; | |
8417 | len -= n; | |
8418 | name += n; | |
8419 | } | |
e41b6bf3 PP |
8420 | n = snprintf(name, len, "pf%uvf%u", |
8421 | attrs->pci_vf.pf, attrs->pci_vf.vf); | |
8422 | break; | |
08474c1a JP |
8423 | } |
8424 | ||
8425 | if (n >= len) | |
8426 | return -EINVAL; | |
8427 | ||
8428 | return 0; | |
8429 | } | |
af3836df | 8430 | |
bf797471 JP |
8431 | int devlink_sb_register(struct devlink *devlink, unsigned int sb_index, |
8432 | u32 size, u16 ingress_pools_count, | |
8433 | u16 egress_pools_count, u16 ingress_tc_count, | |
8434 | u16 egress_tc_count) | |
8435 | { | |
8436 | struct devlink_sb *devlink_sb; | |
8437 | int err = 0; | |
8438 | ||
2406e7e5 | 8439 | mutex_lock(&devlink->lock); |
bf797471 JP |
8440 | if (devlink_sb_index_exists(devlink, sb_index)) { |
8441 | err = -EEXIST; | |
8442 | goto unlock; | |
8443 | } | |
8444 | ||
8445 | devlink_sb = kzalloc(sizeof(*devlink_sb), GFP_KERNEL); | |
8446 | if (!devlink_sb) { | |
8447 | err = -ENOMEM; | |
8448 | goto unlock; | |
8449 | } | |
8450 | devlink_sb->index = sb_index; | |
8451 | devlink_sb->size = size; | |
8452 | devlink_sb->ingress_pools_count = ingress_pools_count; | |
8453 | devlink_sb->egress_pools_count = egress_pools_count; | |
8454 | devlink_sb->ingress_tc_count = ingress_tc_count; | |
8455 | devlink_sb->egress_tc_count = egress_tc_count; | |
8456 | list_add_tail(&devlink_sb->list, &devlink->sb_list); | |
8457 | unlock: | |
2406e7e5 | 8458 | mutex_unlock(&devlink->lock); |
bf797471 JP |
8459 | return err; |
8460 | } | |
8461 | EXPORT_SYMBOL_GPL(devlink_sb_register); | |
8462 | ||
8463 | void devlink_sb_unregister(struct devlink *devlink, unsigned int sb_index) | |
8464 | { | |
8465 | struct devlink_sb *devlink_sb; | |
8466 | ||
2406e7e5 | 8467 | mutex_lock(&devlink->lock); |
bf797471 JP |
8468 | devlink_sb = devlink_sb_get_by_index(devlink, sb_index); |
8469 | WARN_ON(!devlink_sb); | |
8470 | list_del(&devlink_sb->list); | |
2406e7e5 | 8471 | mutex_unlock(&devlink->lock); |
bf797471 JP |
8472 | kfree(devlink_sb); |
8473 | } | |
8474 | EXPORT_SYMBOL_GPL(devlink_sb_unregister); | |
8475 | ||
1555d204 AS |
8476 | /** |
8477 | * devlink_dpipe_headers_register - register dpipe headers | |
8478 | * | |
8479 | * @devlink: devlink | |
8480 | * @dpipe_headers: dpipe header array | |
8481 | * | |
8482 | * Register the headers supported by hardware. | |
8483 | */ | |
8484 | int devlink_dpipe_headers_register(struct devlink *devlink, | |
8485 | struct devlink_dpipe_headers *dpipe_headers) | |
8486 | { | |
2406e7e5 | 8487 | mutex_lock(&devlink->lock); |
1555d204 | 8488 | devlink->dpipe_headers = dpipe_headers; |
2406e7e5 | 8489 | mutex_unlock(&devlink->lock); |
1555d204 AS |
8490 | return 0; |
8491 | } | |
8492 | EXPORT_SYMBOL_GPL(devlink_dpipe_headers_register); | |
8493 | ||
8494 | /** | |
8495 | * devlink_dpipe_headers_unregister - unregister dpipe headers | |
8496 | * | |
8497 | * @devlink: devlink | |
8498 | * | |
8499 | * Unregister the headers supported by hardware. | |
8500 | */ | |
8501 | void devlink_dpipe_headers_unregister(struct devlink *devlink) | |
8502 | { | |
2406e7e5 | 8503 | mutex_lock(&devlink->lock); |
1555d204 | 8504 | devlink->dpipe_headers = NULL; |
2406e7e5 | 8505 | mutex_unlock(&devlink->lock); |
1555d204 AS |
8506 | } |
8507 | EXPORT_SYMBOL_GPL(devlink_dpipe_headers_unregister); | |
8508 | ||
8509 | /** | |
8510 | * devlink_dpipe_table_counter_enabled - check if counter allocation | |
8511 | * required | |
8512 | * @devlink: devlink | |
8513 | * @table_name: tables name | |
8514 | * | |
8515 | * Used by driver to check if counter allocation is required. | |
8516 | * After counter allocation is turned on the table entries | |
8517 | * are updated to include counter statistics. | |
8518 | * | |
8519 | * After that point on the driver must respect the counter | |
8520 | * state so that each entry added to the table is added | |
8521 | * with a counter. | |
8522 | */ | |
8523 | bool devlink_dpipe_table_counter_enabled(struct devlink *devlink, | |
8524 | const char *table_name) | |
8525 | { | |
8526 | struct devlink_dpipe_table *table; | |
8527 | bool enabled; | |
8528 | ||
8529 | rcu_read_lock(); | |
8530 | table = devlink_dpipe_table_find(&devlink->dpipe_table_list, | |
2eb51c75 | 8531 | table_name, devlink); |
1555d204 AS |
8532 | enabled = false; |
8533 | if (table) | |
8534 | enabled = table->counters_enabled; | |
8535 | rcu_read_unlock(); | |
8536 | return enabled; | |
8537 | } | |
8538 | EXPORT_SYMBOL_GPL(devlink_dpipe_table_counter_enabled); | |
8539 | ||
8540 | /** | |
8541 | * devlink_dpipe_table_register - register dpipe table | |
8542 | * | |
8543 | * @devlink: devlink | |
8544 | * @table_name: table name | |
8545 | * @table_ops: table ops | |
8546 | * @priv: priv | |
1555d204 AS |
8547 | * @counter_control_extern: external control for counters |
8548 | */ | |
8549 | int devlink_dpipe_table_register(struct devlink *devlink, | |
8550 | const char *table_name, | |
8551 | struct devlink_dpipe_table_ops *table_ops, | |
ffd3cdcc | 8552 | void *priv, bool counter_control_extern) |
1555d204 AS |
8553 | { |
8554 | struct devlink_dpipe_table *table; | |
6132c1d9 | 8555 | int err = 0; |
1555d204 | 8556 | |
ffd3cdcc AS |
8557 | if (WARN_ON(!table_ops->size_get)) |
8558 | return -EINVAL; | |
8559 | ||
6132c1d9 MB |
8560 | mutex_lock(&devlink->lock); |
8561 | ||
2eb51c75 MB |
8562 | if (devlink_dpipe_table_find(&devlink->dpipe_table_list, table_name, |
8563 | devlink)) { | |
6132c1d9 MB |
8564 | err = -EEXIST; |
8565 | goto unlock; | |
8566 | } | |
8567 | ||
1555d204 | 8568 | table = kzalloc(sizeof(*table), GFP_KERNEL); |
6132c1d9 MB |
8569 | if (!table) { |
8570 | err = -ENOMEM; | |
8571 | goto unlock; | |
8572 | } | |
1555d204 AS |
8573 | |
8574 | table->name = table_name; | |
8575 | table->table_ops = table_ops; | |
8576 | table->priv = priv; | |
1555d204 AS |
8577 | table->counter_control_extern = counter_control_extern; |
8578 | ||
1555d204 | 8579 | list_add_tail_rcu(&table->list, &devlink->dpipe_table_list); |
6132c1d9 | 8580 | unlock: |
2406e7e5 | 8581 | mutex_unlock(&devlink->lock); |
6132c1d9 | 8582 | return err; |
1555d204 AS |
8583 | } |
8584 | EXPORT_SYMBOL_GPL(devlink_dpipe_table_register); | |
8585 | ||
8586 | /** | |
8587 | * devlink_dpipe_table_unregister - unregister dpipe table | |
8588 | * | |
8589 | * @devlink: devlink | |
8590 | * @table_name: table name | |
8591 | */ | |
8592 | void devlink_dpipe_table_unregister(struct devlink *devlink, | |
8593 | const char *table_name) | |
8594 | { | |
8595 | struct devlink_dpipe_table *table; | |
8596 | ||
2406e7e5 | 8597 | mutex_lock(&devlink->lock); |
1555d204 | 8598 | table = devlink_dpipe_table_find(&devlink->dpipe_table_list, |
2eb51c75 | 8599 | table_name, devlink); |
1555d204 AS |
8600 | if (!table) |
8601 | goto unlock; | |
8602 | list_del_rcu(&table->list); | |
2406e7e5 | 8603 | mutex_unlock(&devlink->lock); |
1555d204 AS |
8604 | kfree_rcu(table, rcu); |
8605 | return; | |
8606 | unlock: | |
2406e7e5 | 8607 | mutex_unlock(&devlink->lock); |
1555d204 AS |
8608 | } |
8609 | EXPORT_SYMBOL_GPL(devlink_dpipe_table_unregister); | |
8610 | ||
d9f9b9a4 AS |
8611 | /** |
8612 | * devlink_resource_register - devlink resource register | |
8613 | * | |
8614 | * @devlink: devlink | |
8615 | * @resource_name: resource's name | |
d9f9b9a4 AS |
8616 | * @resource_size: resource's size |
8617 | * @resource_id: resource's id | |
eeaadd82 JK |
8618 | * @parent_resource_id: resource's parent id |
8619 | * @size_params: size parameters | |
d9f9b9a4 AS |
8620 | */ |
8621 | int devlink_resource_register(struct devlink *devlink, | |
8622 | const char *resource_name, | |
d9f9b9a4 AS |
8623 | u64 resource_size, |
8624 | u64 resource_id, | |
8625 | u64 parent_resource_id, | |
fc56be47 | 8626 | const struct devlink_resource_size_params *size_params) |
d9f9b9a4 AS |
8627 | { |
8628 | struct devlink_resource *resource; | |
8629 | struct list_head *resource_list; | |
14530746 | 8630 | bool top_hierarchy; |
d9f9b9a4 AS |
8631 | int err = 0; |
8632 | ||
14530746 DA |
8633 | top_hierarchy = parent_resource_id == DEVLINK_RESOURCE_ID_PARENT_TOP; |
8634 | ||
d9f9b9a4 AS |
8635 | mutex_lock(&devlink->lock); |
8636 | resource = devlink_resource_find(devlink, NULL, resource_id); | |
8637 | if (resource) { | |
8638 | err = -EINVAL; | |
8639 | goto out; | |
8640 | } | |
8641 | ||
8642 | resource = kzalloc(sizeof(*resource), GFP_KERNEL); | |
8643 | if (!resource) { | |
8644 | err = -ENOMEM; | |
8645 | goto out; | |
8646 | } | |
8647 | ||
8648 | if (top_hierarchy) { | |
8649 | resource_list = &devlink->resource_list; | |
8650 | } else { | |
8651 | struct devlink_resource *parent_resource; | |
8652 | ||
8653 | parent_resource = devlink_resource_find(devlink, NULL, | |
8654 | parent_resource_id); | |
8655 | if (parent_resource) { | |
8656 | resource_list = &parent_resource->resource_list; | |
8657 | resource->parent = parent_resource; | |
8658 | } else { | |
b75703de | 8659 | kfree(resource); |
d9f9b9a4 AS |
8660 | err = -EINVAL; |
8661 | goto out; | |
8662 | } | |
8663 | } | |
8664 | ||
8665 | resource->name = resource_name; | |
8666 | resource->size = resource_size; | |
8667 | resource->size_new = resource_size; | |
8668 | resource->id = resource_id; | |
d9f9b9a4 | 8669 | resource->size_valid = true; |
77d27096 JP |
8670 | memcpy(&resource->size_params, size_params, |
8671 | sizeof(resource->size_params)); | |
d9f9b9a4 AS |
8672 | INIT_LIST_HEAD(&resource->resource_list); |
8673 | list_add_tail(&resource->list, resource_list); | |
8674 | out: | |
8675 | mutex_unlock(&devlink->lock); | |
8676 | return err; | |
8677 | } | |
8678 | EXPORT_SYMBOL_GPL(devlink_resource_register); | |
8679 | ||
8680 | /** | |
8681 | * devlink_resources_unregister - free all resources | |
8682 | * | |
8683 | * @devlink: devlink | |
8684 | * @resource: resource | |
8685 | */ | |
8686 | void devlink_resources_unregister(struct devlink *devlink, | |
8687 | struct devlink_resource *resource) | |
8688 | { | |
8689 | struct devlink_resource *tmp, *child_resource; | |
8690 | struct list_head *resource_list; | |
8691 | ||
8692 | if (resource) | |
8693 | resource_list = &resource->resource_list; | |
8694 | else | |
8695 | resource_list = &devlink->resource_list; | |
8696 | ||
8697 | if (!resource) | |
8698 | mutex_lock(&devlink->lock); | |
8699 | ||
8700 | list_for_each_entry_safe(child_resource, tmp, resource_list, list) { | |
8701 | devlink_resources_unregister(devlink, child_resource); | |
8702 | list_del(&child_resource->list); | |
8703 | kfree(child_resource); | |
8704 | } | |
8705 | ||
8706 | if (!resource) | |
8707 | mutex_unlock(&devlink->lock); | |
8708 | } | |
8709 | EXPORT_SYMBOL_GPL(devlink_resources_unregister); | |
8710 | ||
8711 | /** | |
8712 | * devlink_resource_size_get - get and update size | |
8713 | * | |
8714 | * @devlink: devlink | |
8715 | * @resource_id: the requested resource id | |
8716 | * @p_resource_size: ptr to update | |
8717 | */ | |
8718 | int devlink_resource_size_get(struct devlink *devlink, | |
8719 | u64 resource_id, | |
8720 | u64 *p_resource_size) | |
8721 | { | |
8722 | struct devlink_resource *resource; | |
8723 | int err = 0; | |
8724 | ||
8725 | mutex_lock(&devlink->lock); | |
8726 | resource = devlink_resource_find(devlink, NULL, resource_id); | |
8727 | if (!resource) { | |
8728 | err = -EINVAL; | |
8729 | goto out; | |
8730 | } | |
8731 | *p_resource_size = resource->size_new; | |
8732 | resource->size = resource->size_new; | |
8733 | out: | |
8734 | mutex_unlock(&devlink->lock); | |
8735 | return err; | |
8736 | } | |
8737 | EXPORT_SYMBOL_GPL(devlink_resource_size_get); | |
8738 | ||
56dc7cd0 AS |
8739 | /** |
8740 | * devlink_dpipe_table_resource_set - set the resource id | |
8741 | * | |
8742 | * @devlink: devlink | |
8743 | * @table_name: table name | |
8744 | * @resource_id: resource id | |
8745 | * @resource_units: number of resource's units consumed per table's entry | |
8746 | */ | |
8747 | int devlink_dpipe_table_resource_set(struct devlink *devlink, | |
8748 | const char *table_name, u64 resource_id, | |
8749 | u64 resource_units) | |
8750 | { | |
8751 | struct devlink_dpipe_table *table; | |
8752 | int err = 0; | |
8753 | ||
8754 | mutex_lock(&devlink->lock); | |
8755 | table = devlink_dpipe_table_find(&devlink->dpipe_table_list, | |
2eb51c75 | 8756 | table_name, devlink); |
56dc7cd0 AS |
8757 | if (!table) { |
8758 | err = -EINVAL; | |
8759 | goto out; | |
8760 | } | |
8761 | table->resource_id = resource_id; | |
8762 | table->resource_units = resource_units; | |
8763 | table->resource_valid = true; | |
8764 | out: | |
8765 | mutex_unlock(&devlink->lock); | |
8766 | return err; | |
8767 | } | |
8768 | EXPORT_SYMBOL_GPL(devlink_dpipe_table_resource_set); | |
8769 | ||
fc56be47 JP |
8770 | /** |
8771 | * devlink_resource_occ_get_register - register occupancy getter | |
8772 | * | |
8773 | * @devlink: devlink | |
8774 | * @resource_id: resource id | |
8775 | * @occ_get: occupancy getter callback | |
8776 | * @occ_get_priv: occupancy getter callback priv | |
8777 | */ | |
8778 | void devlink_resource_occ_get_register(struct devlink *devlink, | |
8779 | u64 resource_id, | |
8780 | devlink_resource_occ_get_t *occ_get, | |
8781 | void *occ_get_priv) | |
8782 | { | |
8783 | struct devlink_resource *resource; | |
8784 | ||
8785 | mutex_lock(&devlink->lock); | |
8786 | resource = devlink_resource_find(devlink, NULL, resource_id); | |
8787 | if (WARN_ON(!resource)) | |
8788 | goto out; | |
8789 | WARN_ON(resource->occ_get); | |
8790 | ||
8791 | resource->occ_get = occ_get; | |
8792 | resource->occ_get_priv = occ_get_priv; | |
8793 | out: | |
8794 | mutex_unlock(&devlink->lock); | |
8795 | } | |
8796 | EXPORT_SYMBOL_GPL(devlink_resource_occ_get_register); | |
8797 | ||
8798 | /** | |
8799 | * devlink_resource_occ_get_unregister - unregister occupancy getter | |
8800 | * | |
8801 | * @devlink: devlink | |
8802 | * @resource_id: resource id | |
8803 | */ | |
8804 | void devlink_resource_occ_get_unregister(struct devlink *devlink, | |
8805 | u64 resource_id) | |
8806 | { | |
8807 | struct devlink_resource *resource; | |
8808 | ||
8809 | mutex_lock(&devlink->lock); | |
8810 | resource = devlink_resource_find(devlink, NULL, resource_id); | |
8811 | if (WARN_ON(!resource)) | |
8812 | goto out; | |
8813 | WARN_ON(!resource->occ_get); | |
8814 | ||
8815 | resource->occ_get = NULL; | |
8816 | resource->occ_get_priv = NULL; | |
8817 | out: | |
8818 | mutex_unlock(&devlink->lock); | |
8819 | } | |
8820 | EXPORT_SYMBOL_GPL(devlink_resource_occ_get_unregister); | |
8821 | ||
39e6160e VV |
8822 | static int devlink_param_verify(const struct devlink_param *param) |
8823 | { | |
8824 | if (!param || !param->name || !param->supported_cmodes) | |
8825 | return -EINVAL; | |
8826 | if (param->generic) | |
8827 | return devlink_param_generic_verify(param); | |
8828 | else | |
8829 | return devlink_param_driver_verify(param); | |
8830 | } | |
8831 | ||
8832 | static int __devlink_params_register(struct devlink *devlink, | |
c1e5786d | 8833 | unsigned int port_index, |
39e6160e VV |
8834 | struct list_head *param_list, |
8835 | const struct devlink_param *params, | |
c1e5786d VV |
8836 | size_t params_count, |
8837 | enum devlink_command reg_cmd, | |
8838 | enum devlink_command unreg_cmd) | |
eabaef18 MS |
8839 | { |
8840 | const struct devlink_param *param = params; | |
8841 | int i; | |
8842 | int err; | |
8843 | ||
8844 | mutex_lock(&devlink->lock); | |
8845 | for (i = 0; i < params_count; i++, param++) { | |
39e6160e VV |
8846 | err = devlink_param_verify(param); |
8847 | if (err) | |
eabaef18 | 8848 | goto rollback; |
39e6160e | 8849 | |
c1e5786d VV |
8850 | err = devlink_param_register_one(devlink, port_index, |
8851 | param_list, param, reg_cmd); | |
eabaef18 MS |
8852 | if (err) |
8853 | goto rollback; | |
8854 | } | |
8855 | ||
8856 | mutex_unlock(&devlink->lock); | |
8857 | return 0; | |
8858 | ||
8859 | rollback: | |
8860 | if (!i) | |
8861 | goto unlock; | |
8862 | for (param--; i > 0; i--, param--) | |
c1e5786d VV |
8863 | devlink_param_unregister_one(devlink, port_index, param_list, |
8864 | param, unreg_cmd); | |
eabaef18 MS |
8865 | unlock: |
8866 | mutex_unlock(&devlink->lock); | |
8867 | return err; | |
8868 | } | |
39e6160e VV |
8869 | |
8870 | static void __devlink_params_unregister(struct devlink *devlink, | |
c1e5786d | 8871 | unsigned int port_index, |
39e6160e VV |
8872 | struct list_head *param_list, |
8873 | const struct devlink_param *params, | |
c1e5786d VV |
8874 | size_t params_count, |
8875 | enum devlink_command cmd) | |
39e6160e VV |
8876 | { |
8877 | const struct devlink_param *param = params; | |
8878 | int i; | |
8879 | ||
8880 | mutex_lock(&devlink->lock); | |
8881 | for (i = 0; i < params_count; i++, param++) | |
c1e5786d VV |
8882 | devlink_param_unregister_one(devlink, 0, param_list, param, |
8883 | cmd); | |
39e6160e VV |
8884 | mutex_unlock(&devlink->lock); |
8885 | } | |
8886 | ||
8887 | /** | |
8888 | * devlink_params_register - register configuration parameters | |
8889 | * | |
8890 | * @devlink: devlink | |
8891 | * @params: configuration parameters array | |
8892 | * @params_count: number of parameters provided | |
8893 | * | |
8894 | * Register the configuration parameters supported by the driver. | |
8895 | */ | |
8896 | int devlink_params_register(struct devlink *devlink, | |
8897 | const struct devlink_param *params, | |
8898 | size_t params_count) | |
8899 | { | |
c1e5786d VV |
8900 | return __devlink_params_register(devlink, 0, &devlink->param_list, |
8901 | params, params_count, | |
8902 | DEVLINK_CMD_PARAM_NEW, | |
8903 | DEVLINK_CMD_PARAM_DEL); | |
39e6160e | 8904 | } |
eabaef18 MS |
8905 | EXPORT_SYMBOL_GPL(devlink_params_register); |
8906 | ||
8907 | /** | |
8908 | * devlink_params_unregister - unregister configuration parameters | |
8909 | * @devlink: devlink | |
8910 | * @params: configuration parameters to unregister | |
8911 | * @params_count: number of parameters provided | |
8912 | */ | |
8913 | void devlink_params_unregister(struct devlink *devlink, | |
8914 | const struct devlink_param *params, | |
8915 | size_t params_count) | |
8916 | { | |
c1e5786d VV |
8917 | return __devlink_params_unregister(devlink, 0, &devlink->param_list, |
8918 | params, params_count, | |
8919 | DEVLINK_CMD_PARAM_DEL); | |
eabaef18 MS |
8920 | } |
8921 | EXPORT_SYMBOL_GPL(devlink_params_unregister); | |
8922 | ||
7c62cfb8 JP |
8923 | /** |
8924 | * devlink_params_publish - publish configuration parameters | |
8925 | * | |
8926 | * @devlink: devlink | |
8927 | * | |
8928 | * Publish previously registered configuration parameters. | |
8929 | */ | |
8930 | void devlink_params_publish(struct devlink *devlink) | |
8931 | { | |
8932 | struct devlink_param_item *param_item; | |
8933 | ||
8934 | list_for_each_entry(param_item, &devlink->param_list, list) { | |
8935 | if (param_item->published) | |
8936 | continue; | |
8937 | param_item->published = true; | |
8938 | devlink_param_notify(devlink, 0, param_item, | |
8939 | DEVLINK_CMD_PARAM_NEW); | |
8940 | } | |
8941 | } | |
8942 | EXPORT_SYMBOL_GPL(devlink_params_publish); | |
8943 | ||
8944 | /** | |
8945 | * devlink_params_unpublish - unpublish configuration parameters | |
8946 | * | |
8947 | * @devlink: devlink | |
8948 | * | |
8949 | * Unpublish previously registered configuration parameters. | |
8950 | */ | |
8951 | void devlink_params_unpublish(struct devlink *devlink) | |
8952 | { | |
8953 | struct devlink_param_item *param_item; | |
8954 | ||
8955 | list_for_each_entry(param_item, &devlink->param_list, list) { | |
8956 | if (!param_item->published) | |
8957 | continue; | |
8958 | param_item->published = false; | |
8959 | devlink_param_notify(devlink, 0, param_item, | |
8960 | DEVLINK_CMD_PARAM_DEL); | |
8961 | } | |
8962 | } | |
8963 | EXPORT_SYMBOL_GPL(devlink_params_unpublish); | |
8964 | ||
39e6160e VV |
8965 | /** |
8966 | * devlink_port_params_register - register port configuration parameters | |
8967 | * | |
8968 | * @devlink_port: devlink port | |
8969 | * @params: configuration parameters array | |
8970 | * @params_count: number of parameters provided | |
8971 | * | |
8972 | * Register the configuration parameters supported by the port. | |
8973 | */ | |
8974 | int devlink_port_params_register(struct devlink_port *devlink_port, | |
8975 | const struct devlink_param *params, | |
8976 | size_t params_count) | |
8977 | { | |
8978 | return __devlink_params_register(devlink_port->devlink, | |
c1e5786d | 8979 | devlink_port->index, |
39e6160e | 8980 | &devlink_port->param_list, params, |
c1e5786d VV |
8981 | params_count, |
8982 | DEVLINK_CMD_PORT_PARAM_NEW, | |
8983 | DEVLINK_CMD_PORT_PARAM_DEL); | |
39e6160e VV |
8984 | } |
8985 | EXPORT_SYMBOL_GPL(devlink_port_params_register); | |
8986 | ||
8987 | /** | |
8988 | * devlink_port_params_unregister - unregister port configuration | |
8989 | * parameters | |
8990 | * | |
8991 | * @devlink_port: devlink port | |
8992 | * @params: configuration parameters array | |
8993 | * @params_count: number of parameters provided | |
8994 | */ | |
8995 | void devlink_port_params_unregister(struct devlink_port *devlink_port, | |
8996 | const struct devlink_param *params, | |
8997 | size_t params_count) | |
8998 | { | |
8999 | return __devlink_params_unregister(devlink_port->devlink, | |
c1e5786d | 9000 | devlink_port->index, |
39e6160e | 9001 | &devlink_port->param_list, |
c1e5786d VV |
9002 | params, params_count, |
9003 | DEVLINK_CMD_PORT_PARAM_DEL); | |
39e6160e VV |
9004 | } |
9005 | EXPORT_SYMBOL_GPL(devlink_port_params_unregister); | |
9006 | ||
ffd19b9a VV |
9007 | static int |
9008 | __devlink_param_driverinit_value_get(struct list_head *param_list, u32 param_id, | |
9009 | union devlink_param_value *init_val) | |
ec01aeb1 MS |
9010 | { |
9011 | struct devlink_param_item *param_item; | |
9012 | ||
ffd19b9a | 9013 | param_item = devlink_param_find_by_id(param_list, param_id); |
ec01aeb1 MS |
9014 | if (!param_item) |
9015 | return -EINVAL; | |
9016 | ||
9017 | if (!param_item->driverinit_value_valid || | |
9018 | !devlink_param_cmode_is_supported(param_item->param, | |
9019 | DEVLINK_PARAM_CMODE_DRIVERINIT)) | |
9020 | return -EOPNOTSUPP; | |
9021 | ||
1276534c MS |
9022 | if (param_item->param->type == DEVLINK_PARAM_TYPE_STRING) |
9023 | strcpy(init_val->vstr, param_item->driverinit_value.vstr); | |
9024 | else | |
9025 | *init_val = param_item->driverinit_value; | |
ec01aeb1 MS |
9026 | |
9027 | return 0; | |
9028 | } | |
ffd19b9a | 9029 | |
5473a7bd VV |
9030 | static int |
9031 | __devlink_param_driverinit_value_set(struct devlink *devlink, | |
c1e5786d | 9032 | unsigned int port_index, |
5473a7bd VV |
9033 | struct list_head *param_list, u32 param_id, |
9034 | union devlink_param_value init_val, | |
9035 | enum devlink_command cmd) | |
9036 | { | |
9037 | struct devlink_param_item *param_item; | |
9038 | ||
9039 | param_item = devlink_param_find_by_id(param_list, param_id); | |
9040 | if (!param_item) | |
9041 | return -EINVAL; | |
9042 | ||
9043 | if (!devlink_param_cmode_is_supported(param_item->param, | |
9044 | DEVLINK_PARAM_CMODE_DRIVERINIT)) | |
9045 | return -EOPNOTSUPP; | |
9046 | ||
9047 | if (param_item->param->type == DEVLINK_PARAM_TYPE_STRING) | |
9048 | strcpy(param_item->driverinit_value.vstr, init_val.vstr); | |
9049 | else | |
9050 | param_item->driverinit_value = init_val; | |
9051 | param_item->driverinit_value_valid = true; | |
9052 | ||
c1e5786d | 9053 | devlink_param_notify(devlink, port_index, param_item, cmd); |
5473a7bd VV |
9054 | return 0; |
9055 | } | |
9056 | ||
ffd19b9a VV |
9057 | /** |
9058 | * devlink_param_driverinit_value_get - get configuration parameter | |
9059 | * value for driver initializing | |
9060 | * | |
9061 | * @devlink: devlink | |
9062 | * @param_id: parameter ID | |
9063 | * @init_val: value of parameter in driverinit configuration mode | |
9064 | * | |
9065 | * This function should be used by the driver to get driverinit | |
9066 | * configuration for initialization after reload command. | |
9067 | */ | |
9068 | int devlink_param_driverinit_value_get(struct devlink *devlink, u32 param_id, | |
9069 | union devlink_param_value *init_val) | |
9070 | { | |
69d56e0e | 9071 | if (!devlink_reload_supported(devlink->ops)) |
ffd19b9a VV |
9072 | return -EOPNOTSUPP; |
9073 | ||
9074 | return __devlink_param_driverinit_value_get(&devlink->param_list, | |
9075 | param_id, init_val); | |
9076 | } | |
ec01aeb1 MS |
9077 | EXPORT_SYMBOL_GPL(devlink_param_driverinit_value_get); |
9078 | ||
9079 | /** | |
9080 | * devlink_param_driverinit_value_set - set value of configuration | |
9081 | * parameter for driverinit | |
9082 | * configuration mode | |
9083 | * | |
9084 | * @devlink: devlink | |
9085 | * @param_id: parameter ID | |
9086 | * @init_val: value of parameter to set for driverinit configuration mode | |
9087 | * | |
9088 | * This function should be used by the driver to set driverinit | |
9089 | * configuration mode default value. | |
9090 | */ | |
9091 | int devlink_param_driverinit_value_set(struct devlink *devlink, u32 param_id, | |
9092 | union devlink_param_value init_val) | |
9093 | { | |
c1e5786d | 9094 | return __devlink_param_driverinit_value_set(devlink, 0, |
5473a7bd VV |
9095 | &devlink->param_list, |
9096 | param_id, init_val, | |
9097 | DEVLINK_CMD_PARAM_NEW); | |
ec01aeb1 MS |
9098 | } |
9099 | EXPORT_SYMBOL_GPL(devlink_param_driverinit_value_set); | |
9100 | ||
ffd19b9a VV |
9101 | /** |
9102 | * devlink_port_param_driverinit_value_get - get configuration parameter | |
9103 | * value for driver initializing | |
9104 | * | |
9105 | * @devlink_port: devlink_port | |
9106 | * @param_id: parameter ID | |
9107 | * @init_val: value of parameter in driverinit configuration mode | |
9108 | * | |
9109 | * This function should be used by the driver to get driverinit | |
9110 | * configuration for initialization after reload command. | |
9111 | */ | |
9112 | int devlink_port_param_driverinit_value_get(struct devlink_port *devlink_port, | |
9113 | u32 param_id, | |
9114 | union devlink_param_value *init_val) | |
9115 | { | |
9116 | struct devlink *devlink = devlink_port->devlink; | |
9117 | ||
69d56e0e | 9118 | if (!devlink_reload_supported(devlink->ops)) |
ffd19b9a VV |
9119 | return -EOPNOTSUPP; |
9120 | ||
9121 | return __devlink_param_driverinit_value_get(&devlink_port->param_list, | |
9122 | param_id, init_val); | |
9123 | } | |
9124 | EXPORT_SYMBOL_GPL(devlink_port_param_driverinit_value_get); | |
9125 | ||
5473a7bd VV |
9126 | /** |
9127 | * devlink_port_param_driverinit_value_set - set value of configuration | |
9128 | * parameter for driverinit | |
9129 | * configuration mode | |
9130 | * | |
9131 | * @devlink_port: devlink_port | |
9132 | * @param_id: parameter ID | |
9133 | * @init_val: value of parameter to set for driverinit configuration mode | |
9134 | * | |
9135 | * This function should be used by the driver to set driverinit | |
9136 | * configuration mode default value. | |
9137 | */ | |
9138 | int devlink_port_param_driverinit_value_set(struct devlink_port *devlink_port, | |
9139 | u32 param_id, | |
9140 | union devlink_param_value init_val) | |
9141 | { | |
9142 | return __devlink_param_driverinit_value_set(devlink_port->devlink, | |
c1e5786d | 9143 | devlink_port->index, |
5473a7bd | 9144 | &devlink_port->param_list, |
c1e5786d VV |
9145 | param_id, init_val, |
9146 | DEVLINK_CMD_PORT_PARAM_NEW); | |
5473a7bd VV |
9147 | } |
9148 | EXPORT_SYMBOL_GPL(devlink_port_param_driverinit_value_set); | |
9149 | ||
ea601e17 MS |
9150 | /** |
9151 | * devlink_param_value_changed - notify devlink on a parameter's value | |
9152 | * change. Should be called by the driver | |
9153 | * right after the change. | |
9154 | * | |
9155 | * @devlink: devlink | |
9156 | * @param_id: parameter ID | |
9157 | * | |
9158 | * This function should be used by the driver to notify devlink on value | |
9159 | * change, excluding driverinit configuration mode. | |
9160 | * For driverinit configuration mode driver should use the function | |
ea601e17 MS |
9161 | */ |
9162 | void devlink_param_value_changed(struct devlink *devlink, u32 param_id) | |
9163 | { | |
9164 | struct devlink_param_item *param_item; | |
9165 | ||
9166 | param_item = devlink_param_find_by_id(&devlink->param_list, param_id); | |
9167 | WARN_ON(!param_item); | |
9168 | ||
c1e5786d | 9169 | devlink_param_notify(devlink, 0, param_item, DEVLINK_CMD_PARAM_NEW); |
ea601e17 MS |
9170 | } |
9171 | EXPORT_SYMBOL_GPL(devlink_param_value_changed); | |
9172 | ||
c1e5786d VV |
9173 | /** |
9174 | * devlink_port_param_value_changed - notify devlink on a parameter's value | |
9175 | * change. Should be called by the driver | |
9176 | * right after the change. | |
9177 | * | |
9178 | * @devlink_port: devlink_port | |
9179 | * @param_id: parameter ID | |
9180 | * | |
9181 | * This function should be used by the driver to notify devlink on value | |
9182 | * change, excluding driverinit configuration mode. | |
9183 | * For driverinit configuration mode driver should use the function | |
9184 | * devlink_port_param_driverinit_value_set() instead. | |
9185 | */ | |
9186 | void devlink_port_param_value_changed(struct devlink_port *devlink_port, | |
9187 | u32 param_id) | |
9188 | { | |
9189 | struct devlink_param_item *param_item; | |
9190 | ||
9191 | param_item = devlink_param_find_by_id(&devlink_port->param_list, | |
9192 | param_id); | |
9193 | WARN_ON(!param_item); | |
9194 | ||
9195 | devlink_param_notify(devlink_port->devlink, devlink_port->index, | |
9196 | param_item, DEVLINK_CMD_PORT_PARAM_NEW); | |
9197 | } | |
9198 | EXPORT_SYMBOL_GPL(devlink_port_param_value_changed); | |
9199 | ||
bde74ad1 MS |
9200 | /** |
9201 | * devlink_param_value_str_fill - Safely fill-up the string preventing | |
9202 | * from overflow of the preallocated buffer | |
9203 | * | |
9204 | * @dst_val: destination devlink_param_value | |
9205 | * @src: source buffer | |
9206 | */ | |
9207 | void devlink_param_value_str_fill(union devlink_param_value *dst_val, | |
9208 | const char *src) | |
9209 | { | |
9210 | size_t len; | |
9211 | ||
9212 | len = strlcpy(dst_val->vstr, src, __DEVLINK_PARAM_MAX_STRING_VALUE); | |
9213 | WARN_ON(len >= __DEVLINK_PARAM_MAX_STRING_VALUE); | |
9214 | } | |
9215 | EXPORT_SYMBOL_GPL(devlink_param_value_str_fill); | |
9216 | ||
b16ebe92 AV |
9217 | /** |
9218 | * devlink_region_create - create a new address region | |
9219 | * | |
9220 | * @devlink: devlink | |
e8937681 | 9221 | * @ops: region operations and name |
b16ebe92 AV |
9222 | * @region_max_snapshots: Maximum supported number of snapshots for region |
9223 | * @region_size: size of region | |
9224 | */ | |
e8937681 JK |
9225 | struct devlink_region * |
9226 | devlink_region_create(struct devlink *devlink, | |
9227 | const struct devlink_region_ops *ops, | |
9228 | u32 region_max_snapshots, u64 region_size) | |
b16ebe92 AV |
9229 | { |
9230 | struct devlink_region *region; | |
9231 | int err = 0; | |
9232 | ||
a0a09f6b JK |
9233 | if (WARN_ON(!ops) || WARN_ON(!ops->destructor)) |
9234 | return ERR_PTR(-EINVAL); | |
9235 | ||
b16ebe92 AV |
9236 | mutex_lock(&devlink->lock); |
9237 | ||
e8937681 | 9238 | if (devlink_region_get_by_name(devlink, ops->name)) { |
b16ebe92 AV |
9239 | err = -EEXIST; |
9240 | goto unlock; | |
9241 | } | |
9242 | ||
9243 | region = kzalloc(sizeof(*region), GFP_KERNEL); | |
9244 | if (!region) { | |
9245 | err = -ENOMEM; | |
9246 | goto unlock; | |
9247 | } | |
9248 | ||
9249 | region->devlink = devlink; | |
9250 | region->max_snapshots = region_max_snapshots; | |
e8937681 | 9251 | region->ops = ops; |
b16ebe92 AV |
9252 | region->size = region_size; |
9253 | INIT_LIST_HEAD(®ion->snapshot_list); | |
9254 | list_add_tail(®ion->list, &devlink->region_list); | |
866319bb | 9255 | devlink_nl_region_notify(region, NULL, DEVLINK_CMD_REGION_NEW); |
b16ebe92 AV |
9256 | |
9257 | mutex_unlock(&devlink->lock); | |
9258 | return region; | |
9259 | ||
9260 | unlock: | |
9261 | mutex_unlock(&devlink->lock); | |
9262 | return ERR_PTR(err); | |
9263 | } | |
9264 | EXPORT_SYMBOL_GPL(devlink_region_create); | |
9265 | ||
544e7c33 AL |
9266 | /** |
9267 | * devlink_port_region_create - create a new address region for a port | |
9268 | * | |
9269 | * @port: devlink port | |
9270 | * @ops: region operations and name | |
9271 | * @region_max_snapshots: Maximum supported number of snapshots for region | |
9272 | * @region_size: size of region | |
9273 | */ | |
9274 | struct devlink_region * | |
9275 | devlink_port_region_create(struct devlink_port *port, | |
9276 | const struct devlink_port_region_ops *ops, | |
9277 | u32 region_max_snapshots, u64 region_size) | |
9278 | { | |
9279 | struct devlink *devlink = port->devlink; | |
9280 | struct devlink_region *region; | |
9281 | int err = 0; | |
9282 | ||
9283 | if (WARN_ON(!ops) || WARN_ON(!ops->destructor)) | |
9284 | return ERR_PTR(-EINVAL); | |
9285 | ||
9286 | mutex_lock(&devlink->lock); | |
9287 | ||
9288 | if (devlink_port_region_get_by_name(port, ops->name)) { | |
9289 | err = -EEXIST; | |
9290 | goto unlock; | |
9291 | } | |
9292 | ||
9293 | region = kzalloc(sizeof(*region), GFP_KERNEL); | |
9294 | if (!region) { | |
9295 | err = -ENOMEM; | |
9296 | goto unlock; | |
9297 | } | |
9298 | ||
9299 | region->devlink = devlink; | |
9300 | region->port = port; | |
9301 | region->max_snapshots = region_max_snapshots; | |
9302 | region->port_ops = ops; | |
9303 | region->size = region_size; | |
9304 | INIT_LIST_HEAD(®ion->snapshot_list); | |
9305 | list_add_tail(®ion->list, &port->region_list); | |
9306 | devlink_nl_region_notify(region, NULL, DEVLINK_CMD_REGION_NEW); | |
9307 | ||
9308 | mutex_unlock(&devlink->lock); | |
9309 | return region; | |
9310 | ||
9311 | unlock: | |
9312 | mutex_unlock(&devlink->lock); | |
9313 | return ERR_PTR(err); | |
9314 | } | |
9315 | EXPORT_SYMBOL_GPL(devlink_port_region_create); | |
9316 | ||
b16ebe92 AV |
9317 | /** |
9318 | * devlink_region_destroy - destroy address region | |
9319 | * | |
9320 | * @region: devlink region to destroy | |
9321 | */ | |
9322 | void devlink_region_destroy(struct devlink_region *region) | |
9323 | { | |
9324 | struct devlink *devlink = region->devlink; | |
d7e52722 | 9325 | struct devlink_snapshot *snapshot, *ts; |
b16ebe92 AV |
9326 | |
9327 | mutex_lock(&devlink->lock); | |
d7e52722 AV |
9328 | |
9329 | /* Free all snapshots of region */ | |
9330 | list_for_each_entry_safe(snapshot, ts, ®ion->snapshot_list, list) | |
92b49822 | 9331 | devlink_region_snapshot_del(region, snapshot); |
d7e52722 | 9332 | |
b16ebe92 | 9333 | list_del(®ion->list); |
866319bb AV |
9334 | |
9335 | devlink_nl_region_notify(region, NULL, DEVLINK_CMD_REGION_DEL); | |
b16ebe92 AV |
9336 | mutex_unlock(&devlink->lock); |
9337 | kfree(region); | |
9338 | } | |
9339 | EXPORT_SYMBOL_GPL(devlink_region_destroy); | |
9340 | ||
ccadfa44 | 9341 | /** |
b0efcae5 | 9342 | * devlink_region_snapshot_id_get - get snapshot ID |
ccadfa44 AV |
9343 | * |
9344 | * This callback should be called when adding a new snapshot, | |
9345 | * Driver should use the same id for multiple snapshots taken | |
9346 | * on multiple regions at the same time/by the same trigger. | |
9347 | * | |
12102436 JK |
9348 | * The caller of this function must use devlink_region_snapshot_id_put |
9349 | * when finished creating regions using this id. | |
9350 | * | |
7ef19d3b JK |
9351 | * Returns zero on success, or a negative error code on failure. |
9352 | * | |
ccadfa44 | 9353 | * @devlink: devlink |
7ef19d3b | 9354 | * @id: storage to return id |
ccadfa44 | 9355 | */ |
7ef19d3b | 9356 | int devlink_region_snapshot_id_get(struct devlink *devlink, u32 *id) |
ccadfa44 | 9357 | { |
7ef19d3b | 9358 | int err; |
ccadfa44 AV |
9359 | |
9360 | mutex_lock(&devlink->lock); | |
7ef19d3b | 9361 | err = __devlink_region_snapshot_id_get(devlink, id); |
ccadfa44 AV |
9362 | mutex_unlock(&devlink->lock); |
9363 | ||
7ef19d3b | 9364 | return err; |
ccadfa44 | 9365 | } |
b0efcae5 | 9366 | EXPORT_SYMBOL_GPL(devlink_region_snapshot_id_get); |
ccadfa44 | 9367 | |
12102436 JK |
9368 | /** |
9369 | * devlink_region_snapshot_id_put - put snapshot ID reference | |
9370 | * | |
9371 | * This should be called by a driver after finishing creating snapshots | |
9372 | * with an id. Doing so ensures that the ID can later be released in the | |
9373 | * event that all snapshots using it have been destroyed. | |
9374 | * | |
9375 | * @devlink: devlink | |
9376 | * @id: id to release reference on | |
9377 | */ | |
9378 | void devlink_region_snapshot_id_put(struct devlink *devlink, u32 id) | |
9379 | { | |
9380 | mutex_lock(&devlink->lock); | |
9381 | __devlink_snapshot_id_decrement(devlink, id); | |
9382 | mutex_unlock(&devlink->lock); | |
9383 | } | |
9384 | EXPORT_SYMBOL_GPL(devlink_region_snapshot_id_put); | |
9385 | ||
d7e52722 AV |
9386 | /** |
9387 | * devlink_region_snapshot_create - create a new snapshot | |
9388 | * This will add a new snapshot of a region. The snapshot | |
9389 | * will be stored on the region struct and can be accessed | |
6d82f67e | 9390 | * from devlink. This is useful for future analyses of snapshots. |
d7e52722 AV |
9391 | * Multiple snapshots can be created on a region. |
9392 | * The @snapshot_id should be obtained using the getter function. | |
9393 | * | |
eeaadd82 | 9394 | * @region: devlink region of the snapshot |
d7e52722 AV |
9395 | * @data: snapshot data |
9396 | * @snapshot_id: snapshot id to be created | |
d7e52722 | 9397 | */ |
3a5e5234 | 9398 | int devlink_region_snapshot_create(struct devlink_region *region, |
a0a09f6b | 9399 | u8 *data, u32 snapshot_id) |
d7e52722 AV |
9400 | { |
9401 | struct devlink *devlink = region->devlink; | |
d7e52722 AV |
9402 | int err; |
9403 | ||
9404 | mutex_lock(&devlink->lock); | |
cf80faee | 9405 | err = __devlink_region_snapshot_create(region, data, snapshot_id); |
d7e52722 | 9406 | mutex_unlock(&devlink->lock); |
d7e52722 | 9407 | |
d7e52722 AV |
9408 | return err; |
9409 | } | |
9410 | EXPORT_SYMBOL_GPL(devlink_region_snapshot_create); | |
9411 | ||
0f420b6c IS |
9412 | #define DEVLINK_TRAP(_id, _type) \ |
9413 | { \ | |
9414 | .type = DEVLINK_TRAP_TYPE_##_type, \ | |
9415 | .id = DEVLINK_TRAP_GENERIC_ID_##_id, \ | |
9416 | .name = DEVLINK_TRAP_GENERIC_NAME_##_id, \ | |
9417 | } | |
9418 | ||
9419 | static const struct devlink_trap devlink_trap_generic[] = { | |
391203ab IS |
9420 | DEVLINK_TRAP(SMAC_MC, DROP), |
9421 | DEVLINK_TRAP(VLAN_TAG_MISMATCH, DROP), | |
9422 | DEVLINK_TRAP(INGRESS_VLAN_FILTER, DROP), | |
9423 | DEVLINK_TRAP(INGRESS_STP_FILTER, DROP), | |
9424 | DEVLINK_TRAP(EMPTY_TX_LIST, DROP), | |
9425 | DEVLINK_TRAP(PORT_LOOPBACK_FILTER, DROP), | |
9426 | DEVLINK_TRAP(BLACKHOLE_ROUTE, DROP), | |
9427 | DEVLINK_TRAP(TTL_ERROR, EXCEPTION), | |
9428 | DEVLINK_TRAP(TAIL_DROP, DROP), | |
6896cc4d AC |
9429 | DEVLINK_TRAP(NON_IP_PACKET, DROP), |
9430 | DEVLINK_TRAP(UC_DIP_MC_DMAC, DROP), | |
9431 | DEVLINK_TRAP(DIP_LB, DROP), | |
9432 | DEVLINK_TRAP(SIP_MC, DROP), | |
9433 | DEVLINK_TRAP(SIP_LB, DROP), | |
9434 | DEVLINK_TRAP(CORRUPTED_IP_HDR, DROP), | |
9435 | DEVLINK_TRAP(IPV4_SIP_BC, DROP), | |
9436 | DEVLINK_TRAP(IPV6_MC_DIP_RESERVED_SCOPE, DROP), | |
9437 | DEVLINK_TRAP(IPV6_MC_DIP_INTERFACE_LOCAL_SCOPE, DROP), | |
3b063ae5 AC |
9438 | DEVLINK_TRAP(MTU_ERROR, EXCEPTION), |
9439 | DEVLINK_TRAP(UNRESOLVED_NEIGH, EXCEPTION), | |
9440 | DEVLINK_TRAP(RPF, EXCEPTION), | |
9441 | DEVLINK_TRAP(REJECT_ROUTE, EXCEPTION), | |
9442 | DEVLINK_TRAP(IPV4_LPM_UNICAST_MISS, EXCEPTION), | |
9443 | DEVLINK_TRAP(IPV6_LPM_UNICAST_MISS, EXCEPTION), | |
95f0ead8 | 9444 | DEVLINK_TRAP(NON_ROUTABLE, DROP), |
13c056ec | 9445 | DEVLINK_TRAP(DECAP_ERROR, EXCEPTION), |
c3cae491 | 9446 | DEVLINK_TRAP(OVERLAY_SMAC_MC, DROP), |
ecd942a0 JP |
9447 | DEVLINK_TRAP(INGRESS_FLOW_ACTION_DROP, DROP), |
9448 | DEVLINK_TRAP(EGRESS_FLOW_ACTION_DROP, DROP), | |
515eac67 IS |
9449 | DEVLINK_TRAP(STP, CONTROL), |
9450 | DEVLINK_TRAP(LACP, CONTROL), | |
9451 | DEVLINK_TRAP(LLDP, CONTROL), | |
9452 | DEVLINK_TRAP(IGMP_QUERY, CONTROL), | |
9453 | DEVLINK_TRAP(IGMP_V1_REPORT, CONTROL), | |
9454 | DEVLINK_TRAP(IGMP_V2_REPORT, CONTROL), | |
9455 | DEVLINK_TRAP(IGMP_V3_REPORT, CONTROL), | |
9456 | DEVLINK_TRAP(IGMP_V2_LEAVE, CONTROL), | |
9457 | DEVLINK_TRAP(MLD_QUERY, CONTROL), | |
9458 | DEVLINK_TRAP(MLD_V1_REPORT, CONTROL), | |
9459 | DEVLINK_TRAP(MLD_V2_REPORT, CONTROL), | |
9460 | DEVLINK_TRAP(MLD_V1_DONE, CONTROL), | |
d77cfd16 IS |
9461 | DEVLINK_TRAP(IPV4_DHCP, CONTROL), |
9462 | DEVLINK_TRAP(IPV6_DHCP, CONTROL), | |
9463 | DEVLINK_TRAP(ARP_REQUEST, CONTROL), | |
9464 | DEVLINK_TRAP(ARP_RESPONSE, CONTROL), | |
9465 | DEVLINK_TRAP(ARP_OVERLAY, CONTROL), | |
9466 | DEVLINK_TRAP(IPV6_NEIGH_SOLICIT, CONTROL), | |
9467 | DEVLINK_TRAP(IPV6_NEIGH_ADVERT, CONTROL), | |
9468 | DEVLINK_TRAP(IPV4_BFD, CONTROL), | |
9469 | DEVLINK_TRAP(IPV6_BFD, CONTROL), | |
9470 | DEVLINK_TRAP(IPV4_OSPF, CONTROL), | |
9471 | DEVLINK_TRAP(IPV6_OSPF, CONTROL), | |
9472 | DEVLINK_TRAP(IPV4_BGP, CONTROL), | |
9473 | DEVLINK_TRAP(IPV6_BGP, CONTROL), | |
9474 | DEVLINK_TRAP(IPV4_VRRP, CONTROL), | |
9475 | DEVLINK_TRAP(IPV6_VRRP, CONTROL), | |
9476 | DEVLINK_TRAP(IPV4_PIM, CONTROL), | |
9477 | DEVLINK_TRAP(IPV6_PIM, CONTROL), | |
9478 | DEVLINK_TRAP(UC_LB, CONTROL), | |
9479 | DEVLINK_TRAP(LOCAL_ROUTE, CONTROL), | |
9480 | DEVLINK_TRAP(EXTERNAL_ROUTE, CONTROL), | |
9481 | DEVLINK_TRAP(IPV6_UC_DIP_LINK_LOCAL_SCOPE, CONTROL), | |
9482 | DEVLINK_TRAP(IPV6_DIP_ALL_NODES, CONTROL), | |
9483 | DEVLINK_TRAP(IPV6_DIP_ALL_ROUTERS, CONTROL), | |
9484 | DEVLINK_TRAP(IPV6_ROUTER_SOLICIT, CONTROL), | |
9485 | DEVLINK_TRAP(IPV6_ROUTER_ADVERT, CONTROL), | |
9486 | DEVLINK_TRAP(IPV6_REDIRECT, CONTROL), | |
9487 | DEVLINK_TRAP(IPV4_ROUTER_ALERT, CONTROL), | |
9488 | DEVLINK_TRAP(IPV6_ROUTER_ALERT, CONTROL), | |
9489 | DEVLINK_TRAP(PTP_EVENT, CONTROL), | |
9490 | DEVLINK_TRAP(PTP_GENERAL, CONTROL), | |
5eb18a2b IS |
9491 | DEVLINK_TRAP(FLOW_ACTION_SAMPLE, CONTROL), |
9492 | DEVLINK_TRAP(FLOW_ACTION_TRAP, CONTROL), | |
08e335f6 | 9493 | DEVLINK_TRAP(EARLY_DROP, DROP), |
10c24eb2 IC |
9494 | DEVLINK_TRAP(VXLAN_PARSING, DROP), |
9495 | DEVLINK_TRAP(LLC_SNAP_PARSING, DROP), | |
9496 | DEVLINK_TRAP(VLAN_PARSING, DROP), | |
9497 | DEVLINK_TRAP(PPPOE_PPP_PARSING, DROP), | |
9498 | DEVLINK_TRAP(MPLS_PARSING, DROP), | |
9499 | DEVLINK_TRAP(ARP_PARSING, DROP), | |
9500 | DEVLINK_TRAP(IP_1_PARSING, DROP), | |
9501 | DEVLINK_TRAP(IP_N_PARSING, DROP), | |
9502 | DEVLINK_TRAP(GRE_PARSING, DROP), | |
9503 | DEVLINK_TRAP(UDP_PARSING, DROP), | |
9504 | DEVLINK_TRAP(TCP_PARSING, DROP), | |
9505 | DEVLINK_TRAP(IPSEC_PARSING, DROP), | |
9506 | DEVLINK_TRAP(SCTP_PARSING, DROP), | |
9507 | DEVLINK_TRAP(DCCP_PARSING, DROP), | |
9508 | DEVLINK_TRAP(GTP_PARSING, DROP), | |
9509 | DEVLINK_TRAP(ESP_PARSING, DROP), | |
f0a5013e | 9510 | DEVLINK_TRAP(BLACKHOLE_NEXTHOP, DROP), |
0f420b6c IS |
9511 | }; |
9512 | ||
9513 | #define DEVLINK_TRAP_GROUP(_id) \ | |
9514 | { \ | |
9515 | .id = DEVLINK_TRAP_GROUP_GENERIC_ID_##_id, \ | |
9516 | .name = DEVLINK_TRAP_GROUP_GENERIC_NAME_##_id, \ | |
9517 | } | |
9518 | ||
9519 | static const struct devlink_trap_group devlink_trap_group_generic[] = { | |
391203ab IS |
9520 | DEVLINK_TRAP_GROUP(L2_DROPS), |
9521 | DEVLINK_TRAP_GROUP(L3_DROPS), | |
678eb199 | 9522 | DEVLINK_TRAP_GROUP(L3_EXCEPTIONS), |
391203ab | 9523 | DEVLINK_TRAP_GROUP(BUFFER_DROPS), |
13c056ec | 9524 | DEVLINK_TRAP_GROUP(TUNNEL_DROPS), |
ecd942a0 | 9525 | DEVLINK_TRAP_GROUP(ACL_DROPS), |
515eac67 IS |
9526 | DEVLINK_TRAP_GROUP(STP), |
9527 | DEVLINK_TRAP_GROUP(LACP), | |
9528 | DEVLINK_TRAP_GROUP(LLDP), | |
9529 | DEVLINK_TRAP_GROUP(MC_SNOOPING), | |
d77cfd16 IS |
9530 | DEVLINK_TRAP_GROUP(DHCP), |
9531 | DEVLINK_TRAP_GROUP(NEIGH_DISCOVERY), | |
9532 | DEVLINK_TRAP_GROUP(BFD), | |
9533 | DEVLINK_TRAP_GROUP(OSPF), | |
9534 | DEVLINK_TRAP_GROUP(BGP), | |
9535 | DEVLINK_TRAP_GROUP(VRRP), | |
9536 | DEVLINK_TRAP_GROUP(PIM), | |
9537 | DEVLINK_TRAP_GROUP(UC_LB), | |
9538 | DEVLINK_TRAP_GROUP(LOCAL_DELIVERY), | |
ec4f5b36 | 9539 | DEVLINK_TRAP_GROUP(EXTERNAL_DELIVERY), |
d77cfd16 IS |
9540 | DEVLINK_TRAP_GROUP(IPV6), |
9541 | DEVLINK_TRAP_GROUP(PTP_EVENT), | |
9542 | DEVLINK_TRAP_GROUP(PTP_GENERAL), | |
5eb18a2b IS |
9543 | DEVLINK_TRAP_GROUP(ACL_SAMPLE), |
9544 | DEVLINK_TRAP_GROUP(ACL_TRAP), | |
10c24eb2 | 9545 | DEVLINK_TRAP_GROUP(PARSER_ERROR_DROPS), |
0f420b6c IS |
9546 | }; |
9547 | ||
9548 | static int devlink_trap_generic_verify(const struct devlink_trap *trap) | |
9549 | { | |
9550 | if (trap->id > DEVLINK_TRAP_GENERIC_ID_MAX) | |
9551 | return -EINVAL; | |
9552 | ||
9553 | if (strcmp(trap->name, devlink_trap_generic[trap->id].name)) | |
9554 | return -EINVAL; | |
9555 | ||
9556 | if (trap->type != devlink_trap_generic[trap->id].type) | |
9557 | return -EINVAL; | |
9558 | ||
9559 | return 0; | |
9560 | } | |
9561 | ||
9562 | static int devlink_trap_driver_verify(const struct devlink_trap *trap) | |
9563 | { | |
9564 | int i; | |
9565 | ||
9566 | if (trap->id <= DEVLINK_TRAP_GENERIC_ID_MAX) | |
9567 | return -EINVAL; | |
9568 | ||
9569 | for (i = 0; i < ARRAY_SIZE(devlink_trap_generic); i++) { | |
9570 | if (!strcmp(trap->name, devlink_trap_generic[i].name)) | |
9571 | return -EEXIST; | |
9572 | } | |
9573 | ||
9574 | return 0; | |
9575 | } | |
9576 | ||
9577 | static int devlink_trap_verify(const struct devlink_trap *trap) | |
9578 | { | |
107f1678 | 9579 | if (!trap || !trap->name) |
0f420b6c IS |
9580 | return -EINVAL; |
9581 | ||
9582 | if (trap->generic) | |
9583 | return devlink_trap_generic_verify(trap); | |
9584 | else | |
9585 | return devlink_trap_driver_verify(trap); | |
9586 | } | |
9587 | ||
9588 | static int | |
9589 | devlink_trap_group_generic_verify(const struct devlink_trap_group *group) | |
9590 | { | |
9591 | if (group->id > DEVLINK_TRAP_GROUP_GENERIC_ID_MAX) | |
9592 | return -EINVAL; | |
9593 | ||
9594 | if (strcmp(group->name, devlink_trap_group_generic[group->id].name)) | |
9595 | return -EINVAL; | |
9596 | ||
9597 | return 0; | |
9598 | } | |
9599 | ||
9600 | static int | |
9601 | devlink_trap_group_driver_verify(const struct devlink_trap_group *group) | |
9602 | { | |
9603 | int i; | |
9604 | ||
9605 | if (group->id <= DEVLINK_TRAP_GROUP_GENERIC_ID_MAX) | |
9606 | return -EINVAL; | |
9607 | ||
9608 | for (i = 0; i < ARRAY_SIZE(devlink_trap_group_generic); i++) { | |
9609 | if (!strcmp(group->name, devlink_trap_group_generic[i].name)) | |
9610 | return -EEXIST; | |
9611 | } | |
9612 | ||
9613 | return 0; | |
9614 | } | |
9615 | ||
9616 | static int devlink_trap_group_verify(const struct devlink_trap_group *group) | |
9617 | { | |
9618 | if (group->generic) | |
9619 | return devlink_trap_group_generic_verify(group); | |
9620 | else | |
9621 | return devlink_trap_group_driver_verify(group); | |
9622 | } | |
9623 | ||
9624 | static void | |
9625 | devlink_trap_group_notify(struct devlink *devlink, | |
9626 | const struct devlink_trap_group_item *group_item, | |
9627 | enum devlink_command cmd) | |
9628 | { | |
9629 | struct sk_buff *msg; | |
9630 | int err; | |
9631 | ||
9632 | WARN_ON_ONCE(cmd != DEVLINK_CMD_TRAP_GROUP_NEW && | |
9633 | cmd != DEVLINK_CMD_TRAP_GROUP_DEL); | |
9634 | ||
9635 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
9636 | if (!msg) | |
9637 | return; | |
9638 | ||
9639 | err = devlink_nl_trap_group_fill(msg, devlink, group_item, cmd, 0, 0, | |
9640 | 0); | |
9641 | if (err) { | |
9642 | nlmsg_free(msg); | |
9643 | return; | |
9644 | } | |
9645 | ||
9646 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), | |
9647 | msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
9648 | } | |
9649 | ||
0f420b6c IS |
9650 | static int |
9651 | devlink_trap_item_group_link(struct devlink *devlink, | |
9652 | struct devlink_trap_item *trap_item) | |
9653 | { | |
107f1678 | 9654 | u16 group_id = trap_item->trap->init_group_id; |
0f420b6c IS |
9655 | struct devlink_trap_group_item *group_item; |
9656 | ||
107f1678 | 9657 | group_item = devlink_trap_group_item_lookup_by_id(devlink, group_id); |
a09b37fc IS |
9658 | if (WARN_ON_ONCE(!group_item)) |
9659 | return -EINVAL; | |
0f420b6c IS |
9660 | |
9661 | trap_item->group_item = group_item; | |
9662 | ||
9663 | return 0; | |
9664 | } | |
9665 | ||
0f420b6c IS |
9666 | static void devlink_trap_notify(struct devlink *devlink, |
9667 | const struct devlink_trap_item *trap_item, | |
9668 | enum devlink_command cmd) | |
9669 | { | |
9670 | struct sk_buff *msg; | |
9671 | int err; | |
9672 | ||
9673 | WARN_ON_ONCE(cmd != DEVLINK_CMD_TRAP_NEW && | |
9674 | cmd != DEVLINK_CMD_TRAP_DEL); | |
9675 | ||
9676 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
9677 | if (!msg) | |
9678 | return; | |
9679 | ||
9680 | err = devlink_nl_trap_fill(msg, devlink, trap_item, cmd, 0, 0, 0); | |
9681 | if (err) { | |
9682 | nlmsg_free(msg); | |
9683 | return; | |
9684 | } | |
9685 | ||
9686 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), | |
9687 | msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
9688 | } | |
9689 | ||
9690 | static int | |
9691 | devlink_trap_register(struct devlink *devlink, | |
9692 | const struct devlink_trap *trap, void *priv) | |
9693 | { | |
9694 | struct devlink_trap_item *trap_item; | |
9695 | int err; | |
9696 | ||
9697 | if (devlink_trap_item_lookup(devlink, trap->name)) | |
9698 | return -EEXIST; | |
9699 | ||
9700 | trap_item = kzalloc(sizeof(*trap_item), GFP_KERNEL); | |
9701 | if (!trap_item) | |
9702 | return -ENOMEM; | |
9703 | ||
9704 | trap_item->stats = netdev_alloc_pcpu_stats(struct devlink_stats); | |
9705 | if (!trap_item->stats) { | |
9706 | err = -ENOMEM; | |
9707 | goto err_stats_alloc; | |
9708 | } | |
9709 | ||
9710 | trap_item->trap = trap; | |
9711 | trap_item->action = trap->init_action; | |
9712 | trap_item->priv = priv; | |
9713 | ||
9714 | err = devlink_trap_item_group_link(devlink, trap_item); | |
9715 | if (err) | |
9716 | goto err_group_link; | |
9717 | ||
9718 | err = devlink->ops->trap_init(devlink, trap, trap_item); | |
9719 | if (err) | |
9720 | goto err_trap_init; | |
9721 | ||
9722 | list_add_tail(&trap_item->list, &devlink->trap_list); | |
9723 | devlink_trap_notify(devlink, trap_item, DEVLINK_CMD_TRAP_NEW); | |
9724 | ||
9725 | return 0; | |
9726 | ||
9727 | err_trap_init: | |
0f420b6c IS |
9728 | err_group_link: |
9729 | free_percpu(trap_item->stats); | |
9730 | err_stats_alloc: | |
9731 | kfree(trap_item); | |
9732 | return err; | |
9733 | } | |
9734 | ||
9735 | static void devlink_trap_unregister(struct devlink *devlink, | |
9736 | const struct devlink_trap *trap) | |
9737 | { | |
9738 | struct devlink_trap_item *trap_item; | |
9739 | ||
9740 | trap_item = devlink_trap_item_lookup(devlink, trap->name); | |
9741 | if (WARN_ON_ONCE(!trap_item)) | |
9742 | return; | |
9743 | ||
9744 | devlink_trap_notify(devlink, trap_item, DEVLINK_CMD_TRAP_DEL); | |
9745 | list_del(&trap_item->list); | |
9746 | if (devlink->ops->trap_fini) | |
9747 | devlink->ops->trap_fini(devlink, trap, trap_item); | |
0f420b6c IS |
9748 | free_percpu(trap_item->stats); |
9749 | kfree(trap_item); | |
9750 | } | |
9751 | ||
9752 | static void devlink_trap_disable(struct devlink *devlink, | |
9753 | const struct devlink_trap *trap) | |
9754 | { | |
9755 | struct devlink_trap_item *trap_item; | |
9756 | ||
9757 | trap_item = devlink_trap_item_lookup(devlink, trap->name); | |
9758 | if (WARN_ON_ONCE(!trap_item)) | |
9759 | return; | |
9760 | ||
c88e11e0 IS |
9761 | devlink->ops->trap_action_set(devlink, trap, DEVLINK_TRAP_ACTION_DROP, |
9762 | NULL); | |
0f420b6c IS |
9763 | trap_item->action = DEVLINK_TRAP_ACTION_DROP; |
9764 | } | |
9765 | ||
9766 | /** | |
9767 | * devlink_traps_register - Register packet traps with devlink. | |
9768 | * @devlink: devlink. | |
9769 | * @traps: Packet traps. | |
9770 | * @traps_count: Count of provided packet traps. | |
9771 | * @priv: Driver private information. | |
9772 | * | |
9773 | * Return: Non-zero value on failure. | |
9774 | */ | |
9775 | int devlink_traps_register(struct devlink *devlink, | |
9776 | const struct devlink_trap *traps, | |
9777 | size_t traps_count, void *priv) | |
9778 | { | |
9779 | int i, err; | |
9780 | ||
9781 | if (!devlink->ops->trap_init || !devlink->ops->trap_action_set) | |
9782 | return -EINVAL; | |
9783 | ||
9784 | mutex_lock(&devlink->lock); | |
9785 | for (i = 0; i < traps_count; i++) { | |
9786 | const struct devlink_trap *trap = &traps[i]; | |
9787 | ||
9788 | err = devlink_trap_verify(trap); | |
9789 | if (err) | |
9790 | goto err_trap_verify; | |
9791 | ||
9792 | err = devlink_trap_register(devlink, trap, priv); | |
9793 | if (err) | |
9794 | goto err_trap_register; | |
9795 | } | |
9796 | mutex_unlock(&devlink->lock); | |
9797 | ||
9798 | return 0; | |
9799 | ||
9800 | err_trap_register: | |
9801 | err_trap_verify: | |
9802 | for (i--; i >= 0; i--) | |
9803 | devlink_trap_unregister(devlink, &traps[i]); | |
9804 | mutex_unlock(&devlink->lock); | |
9805 | return err; | |
9806 | } | |
9807 | EXPORT_SYMBOL_GPL(devlink_traps_register); | |
9808 | ||
9809 | /** | |
9810 | * devlink_traps_unregister - Unregister packet traps from devlink. | |
9811 | * @devlink: devlink. | |
9812 | * @traps: Packet traps. | |
9813 | * @traps_count: Count of provided packet traps. | |
9814 | */ | |
9815 | void devlink_traps_unregister(struct devlink *devlink, | |
9816 | const struct devlink_trap *traps, | |
9817 | size_t traps_count) | |
9818 | { | |
9819 | int i; | |
9820 | ||
9821 | mutex_lock(&devlink->lock); | |
9822 | /* Make sure we do not have any packets in-flight while unregistering | |
9823 | * traps by disabling all of them and waiting for a grace period. | |
9824 | */ | |
9825 | for (i = traps_count - 1; i >= 0; i--) | |
9826 | devlink_trap_disable(devlink, &traps[i]); | |
9827 | synchronize_rcu(); | |
9828 | for (i = traps_count - 1; i >= 0; i--) | |
9829 | devlink_trap_unregister(devlink, &traps[i]); | |
9830 | mutex_unlock(&devlink->lock); | |
9831 | } | |
9832 | EXPORT_SYMBOL_GPL(devlink_traps_unregister); | |
9833 | ||
9834 | static void | |
9835 | devlink_trap_stats_update(struct devlink_stats __percpu *trap_stats, | |
9836 | size_t skb_len) | |
9837 | { | |
9838 | struct devlink_stats *stats; | |
9839 | ||
9840 | stats = this_cpu_ptr(trap_stats); | |
9841 | u64_stats_update_begin(&stats->syncp); | |
9842 | stats->rx_bytes += skb_len; | |
9843 | stats->rx_packets++; | |
9844 | u64_stats_update_end(&stats->syncp); | |
9845 | } | |
9846 | ||
5b88823b IS |
9847 | static void |
9848 | devlink_trap_report_metadata_set(struct devlink_trap_metadata *metadata, | |
9849 | const struct devlink_trap_item *trap_item, | |
9850 | struct devlink_port *in_devlink_port, | |
9851 | const struct flow_action_cookie *fa_cookie) | |
9852 | { | |
9853 | metadata->trap_name = trap_item->trap->name; | |
9854 | metadata->trap_group_name = trap_item->group_item->group->name; | |
9855 | metadata->fa_cookie = fa_cookie; | |
93e15596 | 9856 | metadata->trap_type = trap_item->trap->type; |
5b88823b IS |
9857 | |
9858 | spin_lock(&in_devlink_port->type_lock); | |
9859 | if (in_devlink_port->type == DEVLINK_PORT_TYPE_ETH) | |
9860 | metadata->input_dev = in_devlink_port->type_dev; | |
9861 | spin_unlock(&in_devlink_port->type_lock); | |
9862 | } | |
9863 | ||
0f420b6c IS |
9864 | /** |
9865 | * devlink_trap_report - Report trapped packet to drop monitor. | |
9866 | * @devlink: devlink. | |
9867 | * @skb: Trapped packet. | |
9868 | * @trap_ctx: Trap context. | |
9869 | * @in_devlink_port: Input devlink port. | |
5a2e106c | 9870 | * @fa_cookie: Flow action cookie. Could be NULL. |
0f420b6c IS |
9871 | */ |
9872 | void devlink_trap_report(struct devlink *devlink, struct sk_buff *skb, | |
5a2e106c JP |
9873 | void *trap_ctx, struct devlink_port *in_devlink_port, |
9874 | const struct flow_action_cookie *fa_cookie) | |
9875 | ||
0f420b6c IS |
9876 | { |
9877 | struct devlink_trap_item *trap_item = trap_ctx; | |
0f420b6c IS |
9878 | |
9879 | devlink_trap_stats_update(trap_item->stats, skb->len); | |
9880 | devlink_trap_stats_update(trap_item->group_item->stats, skb->len); | |
9881 | ||
5b88823b IS |
9882 | if (trace_devlink_trap_report_enabled()) { |
9883 | struct devlink_trap_metadata metadata = {}; | |
9884 | ||
9885 | devlink_trap_report_metadata_set(&metadata, trap_item, | |
9886 | in_devlink_port, fa_cookie); | |
9887 | trace_devlink_trap_report(devlink, skb, &metadata); | |
9888 | } | |
0f420b6c IS |
9889 | } |
9890 | EXPORT_SYMBOL_GPL(devlink_trap_report); | |
9891 | ||
9892 | /** | |
9893 | * devlink_trap_ctx_priv - Trap context to driver private information. | |
9894 | * @trap_ctx: Trap context. | |
9895 | * | |
9896 | * Return: Driver private information passed during registration. | |
9897 | */ | |
9898 | void *devlink_trap_ctx_priv(void *trap_ctx) | |
9899 | { | |
9900 | struct devlink_trap_item *trap_item = trap_ctx; | |
9901 | ||
9902 | return trap_item->priv; | |
9903 | } | |
9904 | EXPORT_SYMBOL_GPL(devlink_trap_ctx_priv); | |
9905 | ||
f9f54392 IS |
9906 | static int |
9907 | devlink_trap_group_item_policer_link(struct devlink *devlink, | |
9908 | struct devlink_trap_group_item *group_item) | |
9909 | { | |
9910 | u32 policer_id = group_item->group->init_policer_id; | |
9911 | struct devlink_trap_policer_item *policer_item; | |
9912 | ||
9913 | if (policer_id == 0) | |
9914 | return 0; | |
9915 | ||
9916 | policer_item = devlink_trap_policer_item_lookup(devlink, policer_id); | |
9917 | if (WARN_ON_ONCE(!policer_item)) | |
9918 | return -EINVAL; | |
9919 | ||
9920 | group_item->policer_item = policer_item; | |
9921 | ||
9922 | return 0; | |
9923 | } | |
9924 | ||
95ad9555 IS |
9925 | static int |
9926 | devlink_trap_group_register(struct devlink *devlink, | |
9927 | const struct devlink_trap_group *group) | |
9928 | { | |
9929 | struct devlink_trap_group_item *group_item; | |
9930 | int err; | |
9931 | ||
9932 | if (devlink_trap_group_item_lookup(devlink, group->name)) | |
9933 | return -EEXIST; | |
9934 | ||
9935 | group_item = kzalloc(sizeof(*group_item), GFP_KERNEL); | |
9936 | if (!group_item) | |
9937 | return -ENOMEM; | |
9938 | ||
9939 | group_item->stats = netdev_alloc_pcpu_stats(struct devlink_stats); | |
9940 | if (!group_item->stats) { | |
9941 | err = -ENOMEM; | |
9942 | goto err_stats_alloc; | |
9943 | } | |
9944 | ||
9945 | group_item->group = group; | |
95ad9555 | 9946 | |
f9f54392 IS |
9947 | err = devlink_trap_group_item_policer_link(devlink, group_item); |
9948 | if (err) | |
9949 | goto err_policer_link; | |
9950 | ||
95ad9555 IS |
9951 | if (devlink->ops->trap_group_init) { |
9952 | err = devlink->ops->trap_group_init(devlink, group); | |
9953 | if (err) | |
9954 | goto err_group_init; | |
9955 | } | |
9956 | ||
9957 | list_add_tail(&group_item->list, &devlink->trap_group_list); | |
9958 | devlink_trap_group_notify(devlink, group_item, | |
9959 | DEVLINK_CMD_TRAP_GROUP_NEW); | |
9960 | ||
9961 | return 0; | |
9962 | ||
9963 | err_group_init: | |
f9f54392 | 9964 | err_policer_link: |
95ad9555 IS |
9965 | free_percpu(group_item->stats); |
9966 | err_stats_alloc: | |
9967 | kfree(group_item); | |
9968 | return err; | |
9969 | } | |
9970 | ||
9971 | static void | |
9972 | devlink_trap_group_unregister(struct devlink *devlink, | |
9973 | const struct devlink_trap_group *group) | |
9974 | { | |
9975 | struct devlink_trap_group_item *group_item; | |
9976 | ||
9977 | group_item = devlink_trap_group_item_lookup(devlink, group->name); | |
9978 | if (WARN_ON_ONCE(!group_item)) | |
9979 | return; | |
9980 | ||
9981 | devlink_trap_group_notify(devlink, group_item, | |
9982 | DEVLINK_CMD_TRAP_GROUP_DEL); | |
9983 | list_del(&group_item->list); | |
9984 | free_percpu(group_item->stats); | |
9985 | kfree(group_item); | |
9986 | } | |
9987 | ||
9988 | /** | |
9989 | * devlink_trap_groups_register - Register packet trap groups with devlink. | |
9990 | * @devlink: devlink. | |
9991 | * @groups: Packet trap groups. | |
9992 | * @groups_count: Count of provided packet trap groups. | |
9993 | * | |
9994 | * Return: Non-zero value on failure. | |
9995 | */ | |
9996 | int devlink_trap_groups_register(struct devlink *devlink, | |
9997 | const struct devlink_trap_group *groups, | |
9998 | size_t groups_count) | |
9999 | { | |
10000 | int i, err; | |
10001 | ||
10002 | mutex_lock(&devlink->lock); | |
10003 | for (i = 0; i < groups_count; i++) { | |
10004 | const struct devlink_trap_group *group = &groups[i]; | |
10005 | ||
10006 | err = devlink_trap_group_verify(group); | |
10007 | if (err) | |
10008 | goto err_trap_group_verify; | |
10009 | ||
10010 | err = devlink_trap_group_register(devlink, group); | |
10011 | if (err) | |
10012 | goto err_trap_group_register; | |
10013 | } | |
10014 | mutex_unlock(&devlink->lock); | |
10015 | ||
10016 | return 0; | |
10017 | ||
10018 | err_trap_group_register: | |
10019 | err_trap_group_verify: | |
10020 | for (i--; i >= 0; i--) | |
10021 | devlink_trap_group_unregister(devlink, &groups[i]); | |
10022 | mutex_unlock(&devlink->lock); | |
10023 | return err; | |
10024 | } | |
10025 | EXPORT_SYMBOL_GPL(devlink_trap_groups_register); | |
10026 | ||
10027 | /** | |
10028 | * devlink_trap_groups_unregister - Unregister packet trap groups from devlink. | |
10029 | * @devlink: devlink. | |
10030 | * @groups: Packet trap groups. | |
10031 | * @groups_count: Count of provided packet trap groups. | |
10032 | */ | |
10033 | void devlink_trap_groups_unregister(struct devlink *devlink, | |
10034 | const struct devlink_trap_group *groups, | |
10035 | size_t groups_count) | |
10036 | { | |
10037 | int i; | |
10038 | ||
10039 | mutex_lock(&devlink->lock); | |
10040 | for (i = groups_count - 1; i >= 0; i--) | |
10041 | devlink_trap_group_unregister(devlink, &groups[i]); | |
10042 | mutex_unlock(&devlink->lock); | |
10043 | } | |
10044 | EXPORT_SYMBOL_GPL(devlink_trap_groups_unregister); | |
10045 | ||
1e8c6619 IS |
10046 | static void |
10047 | devlink_trap_policer_notify(struct devlink *devlink, | |
10048 | const struct devlink_trap_policer_item *policer_item, | |
10049 | enum devlink_command cmd) | |
10050 | { | |
10051 | struct sk_buff *msg; | |
10052 | int err; | |
10053 | ||
10054 | WARN_ON_ONCE(cmd != DEVLINK_CMD_TRAP_POLICER_NEW && | |
10055 | cmd != DEVLINK_CMD_TRAP_POLICER_DEL); | |
10056 | ||
10057 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
10058 | if (!msg) | |
10059 | return; | |
10060 | ||
10061 | err = devlink_nl_trap_policer_fill(msg, devlink, policer_item, cmd, 0, | |
10062 | 0, 0); | |
10063 | if (err) { | |
10064 | nlmsg_free(msg); | |
10065 | return; | |
10066 | } | |
10067 | ||
10068 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), | |
10069 | msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
10070 | } | |
10071 | ||
10072 | static int | |
10073 | devlink_trap_policer_register(struct devlink *devlink, | |
10074 | const struct devlink_trap_policer *policer) | |
10075 | { | |
10076 | struct devlink_trap_policer_item *policer_item; | |
10077 | int err; | |
10078 | ||
10079 | if (devlink_trap_policer_item_lookup(devlink, policer->id)) | |
10080 | return -EEXIST; | |
10081 | ||
10082 | policer_item = kzalloc(sizeof(*policer_item), GFP_KERNEL); | |
10083 | if (!policer_item) | |
10084 | return -ENOMEM; | |
10085 | ||
10086 | policer_item->policer = policer; | |
10087 | policer_item->rate = policer->init_rate; | |
10088 | policer_item->burst = policer->init_burst; | |
10089 | ||
10090 | if (devlink->ops->trap_policer_init) { | |
10091 | err = devlink->ops->trap_policer_init(devlink, policer); | |
10092 | if (err) | |
10093 | goto err_policer_init; | |
10094 | } | |
10095 | ||
10096 | list_add_tail(&policer_item->list, &devlink->trap_policer_list); | |
10097 | devlink_trap_policer_notify(devlink, policer_item, | |
10098 | DEVLINK_CMD_TRAP_POLICER_NEW); | |
10099 | ||
10100 | return 0; | |
10101 | ||
10102 | err_policer_init: | |
10103 | kfree(policer_item); | |
10104 | return err; | |
10105 | } | |
10106 | ||
10107 | static void | |
10108 | devlink_trap_policer_unregister(struct devlink *devlink, | |
10109 | const struct devlink_trap_policer *policer) | |
10110 | { | |
10111 | struct devlink_trap_policer_item *policer_item; | |
10112 | ||
10113 | policer_item = devlink_trap_policer_item_lookup(devlink, policer->id); | |
10114 | if (WARN_ON_ONCE(!policer_item)) | |
10115 | return; | |
10116 | ||
10117 | devlink_trap_policer_notify(devlink, policer_item, | |
10118 | DEVLINK_CMD_TRAP_POLICER_DEL); | |
10119 | list_del(&policer_item->list); | |
10120 | if (devlink->ops->trap_policer_fini) | |
10121 | devlink->ops->trap_policer_fini(devlink, policer); | |
10122 | kfree(policer_item); | |
10123 | } | |
10124 | ||
10125 | /** | |
10126 | * devlink_trap_policers_register - Register packet trap policers with devlink. | |
10127 | * @devlink: devlink. | |
10128 | * @policers: Packet trap policers. | |
10129 | * @policers_count: Count of provided packet trap policers. | |
10130 | * | |
10131 | * Return: Non-zero value on failure. | |
10132 | */ | |
10133 | int | |
10134 | devlink_trap_policers_register(struct devlink *devlink, | |
10135 | const struct devlink_trap_policer *policers, | |
10136 | size_t policers_count) | |
10137 | { | |
10138 | int i, err; | |
10139 | ||
10140 | mutex_lock(&devlink->lock); | |
10141 | for (i = 0; i < policers_count; i++) { | |
10142 | const struct devlink_trap_policer *policer = &policers[i]; | |
10143 | ||
10144 | if (WARN_ON(policer->id == 0 || | |
10145 | policer->max_rate < policer->min_rate || | |
10146 | policer->max_burst < policer->min_burst)) { | |
10147 | err = -EINVAL; | |
10148 | goto err_trap_policer_verify; | |
10149 | } | |
10150 | ||
10151 | err = devlink_trap_policer_register(devlink, policer); | |
10152 | if (err) | |
10153 | goto err_trap_policer_register; | |
10154 | } | |
10155 | mutex_unlock(&devlink->lock); | |
10156 | ||
10157 | return 0; | |
10158 | ||
10159 | err_trap_policer_register: | |
10160 | err_trap_policer_verify: | |
10161 | for (i--; i >= 0; i--) | |
10162 | devlink_trap_policer_unregister(devlink, &policers[i]); | |
10163 | mutex_unlock(&devlink->lock); | |
10164 | return err; | |
10165 | } | |
10166 | EXPORT_SYMBOL_GPL(devlink_trap_policers_register); | |
10167 | ||
10168 | /** | |
10169 | * devlink_trap_policers_unregister - Unregister packet trap policers from devlink. | |
10170 | * @devlink: devlink. | |
10171 | * @policers: Packet trap policers. | |
10172 | * @policers_count: Count of provided packet trap policers. | |
10173 | */ | |
10174 | void | |
10175 | devlink_trap_policers_unregister(struct devlink *devlink, | |
10176 | const struct devlink_trap_policer *policers, | |
10177 | size_t policers_count) | |
10178 | { | |
10179 | int i; | |
10180 | ||
10181 | mutex_lock(&devlink->lock); | |
10182 | for (i = policers_count - 1; i >= 0; i--) | |
10183 | devlink_trap_policer_unregister(devlink, &policers[i]); | |
10184 | mutex_unlock(&devlink->lock); | |
10185 | } | |
10186 | EXPORT_SYMBOL_GPL(devlink_trap_policers_unregister); | |
10187 | ||
ddb6e99e JK |
10188 | static void __devlink_compat_running_version(struct devlink *devlink, |
10189 | char *buf, size_t len) | |
10190 | { | |
10191 | const struct nlattr *nlattr; | |
10192 | struct devlink_info_req req; | |
10193 | struct sk_buff *msg; | |
10194 | int rem, err; | |
10195 | ||
ddb6e99e JK |
10196 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
10197 | if (!msg) | |
10198 | return; | |
10199 | ||
10200 | req.msg = msg; | |
10201 | err = devlink->ops->info_get(devlink, &req, NULL); | |
10202 | if (err) | |
10203 | goto free_msg; | |
10204 | ||
10205 | nla_for_each_attr(nlattr, (void *)msg->data, msg->len, rem) { | |
10206 | const struct nlattr *kv; | |
10207 | int rem_kv; | |
10208 | ||
10209 | if (nla_type(nlattr) != DEVLINK_ATTR_INFO_VERSION_RUNNING) | |
10210 | continue; | |
10211 | ||
10212 | nla_for_each_nested(kv, nlattr, rem_kv) { | |
10213 | if (nla_type(kv) != DEVLINK_ATTR_INFO_VERSION_VALUE) | |
10214 | continue; | |
10215 | ||
10216 | strlcat(buf, nla_data(kv), len); | |
10217 | strlcat(buf, " ", len); | |
10218 | } | |
10219 | } | |
10220 | free_msg: | |
10221 | nlmsg_free(msg); | |
10222 | } | |
10223 | ||
10224 | void devlink_compat_running_version(struct net_device *dev, | |
10225 | char *buf, size_t len) | |
10226 | { | |
ddb6e99e JK |
10227 | struct devlink *devlink; |
10228 | ||
1b45ff6c JK |
10229 | dev_hold(dev); |
10230 | rtnl_unlock(); | |
10231 | ||
b473b0d2 | 10232 | devlink = netdev_to_devlink(dev); |
be6fe1d8 | 10233 | if (!devlink || !devlink->ops->info_get) |
e0dcd386 | 10234 | goto out; |
b473b0d2 JK |
10235 | |
10236 | mutex_lock(&devlink->lock); | |
10237 | __devlink_compat_running_version(devlink, buf, len); | |
10238 | mutex_unlock(&devlink->lock); | |
1b45ff6c | 10239 | |
e0dcd386 | 10240 | out: |
1b45ff6c JK |
10241 | rtnl_lock(); |
10242 | dev_put(dev); | |
ddb6e99e JK |
10243 | } |
10244 | ||
4eceba17 JK |
10245 | int devlink_compat_flash_update(struct net_device *dev, const char *file_name) |
10246 | { | |
bc75c054 | 10247 | struct devlink_flash_update_params params = {}; |
4eceba17 | 10248 | struct devlink *devlink; |
e0dcd386 | 10249 | int ret; |
4eceba17 | 10250 | |
1b45ff6c JK |
10251 | dev_hold(dev); |
10252 | rtnl_unlock(); | |
10253 | ||
b473b0d2 | 10254 | devlink = netdev_to_devlink(dev); |
e0dcd386 JP |
10255 | if (!devlink || !devlink->ops->flash_update) { |
10256 | ret = -EOPNOTSUPP; | |
10257 | goto out; | |
10258 | } | |
4eceba17 | 10259 | |
b44cfd4f JK |
10260 | ret = request_firmware(¶ms.fw, file_name, devlink->dev); |
10261 | if (ret) | |
10262 | goto out; | |
bc75c054 | 10263 | |
b473b0d2 | 10264 | mutex_lock(&devlink->lock); |
52cc5f3a | 10265 | devlink_flash_update_begin_notify(devlink); |
bc75c054 | 10266 | ret = devlink->ops->flash_update(devlink, ¶ms, NULL); |
52cc5f3a | 10267 | devlink_flash_update_end_notify(devlink); |
b473b0d2 | 10268 | mutex_unlock(&devlink->lock); |
1b45ff6c | 10269 | |
b44cfd4f JK |
10270 | release_firmware(params.fw); |
10271 | ||
e0dcd386 | 10272 | out: |
1b45ff6c JK |
10273 | rtnl_lock(); |
10274 | dev_put(dev); | |
10275 | ||
b473b0d2 | 10276 | return ret; |
4eceba17 JK |
10277 | } |
10278 | ||
af3836df JP |
10279 | int devlink_compat_phys_port_name_get(struct net_device *dev, |
10280 | char *name, size_t len) | |
10281 | { | |
10282 | struct devlink_port *devlink_port; | |
10283 | ||
10284 | /* RTNL mutex is held here which ensures that devlink_port | |
10285 | * instance cannot disappear in the middle. No need to take | |
10286 | * any devlink lock as only permanent values are accessed. | |
10287 | */ | |
10288 | ASSERT_RTNL(); | |
10289 | ||
10290 | devlink_port = netdev_to_devlink_port(dev); | |
10291 | if (!devlink_port) | |
10292 | return -EOPNOTSUPP; | |
10293 | ||
10294 | return __devlink_port_phys_port_name_get(devlink_port, name, len); | |
10295 | } | |
10296 | ||
7e1146e8 JP |
10297 | int devlink_compat_switch_id_get(struct net_device *dev, |
10298 | struct netdev_phys_item_id *ppid) | |
10299 | { | |
10300 | struct devlink_port *devlink_port; | |
10301 | ||
043b8413 VB |
10302 | /* Caller must hold RTNL mutex or reference to dev, which ensures that |
10303 | * devlink_port instance cannot disappear in the middle. No need to take | |
7e1146e8 JP |
10304 | * any devlink lock as only permanent values are accessed. |
10305 | */ | |
7e1146e8 | 10306 | devlink_port = netdev_to_devlink_port(dev); |
46737a19 | 10307 | if (!devlink_port || !devlink_port->switch_port) |
7e1146e8 JP |
10308 | return -EOPNOTSUPP; |
10309 | ||
10310 | memcpy(ppid, &devlink_port->attrs.switch_id, sizeof(*ppid)); | |
10311 | ||
10312 | return 0; | |
10313 | } | |
10314 | ||
070c63f2 JP |
10315 | static void __net_exit devlink_pernet_pre_exit(struct net *net) |
10316 | { | |
10317 | struct devlink *devlink; | |
ccdf0721 | 10318 | u32 actions_performed; |
070c63f2 JP |
10319 | int err; |
10320 | ||
10321 | /* In case network namespace is getting destroyed, reload | |
10322 | * all devlink instances from this namespace into init_net. | |
10323 | */ | |
10324 | mutex_lock(&devlink_mutex); | |
10325 | list_for_each_entry(devlink, &devlink_list, list) { | |
10326 | if (net_eq(devlink_net(devlink), net)) { | |
69d56e0e | 10327 | if (WARN_ON(!devlink_reload_supported(devlink->ops))) |
070c63f2 | 10328 | continue; |
ccdf0721 MS |
10329 | err = devlink_reload(devlink, &init_net, |
10330 | DEVLINK_RELOAD_ACTION_DRIVER_REINIT, | |
dc64cc7c | 10331 | DEVLINK_RELOAD_LIMIT_UNSPEC, |
ccdf0721 | 10332 | &actions_performed, NULL); |
a0c76345 | 10333 | if (err && err != -EOPNOTSUPP) |
070c63f2 JP |
10334 | pr_warn("Failed to reload devlink instance into init_net\n"); |
10335 | } | |
10336 | } | |
10337 | mutex_unlock(&devlink_mutex); | |
10338 | } | |
10339 | ||
10340 | static struct pernet_operations devlink_pernet_ops __net_initdata = { | |
10341 | .pre_exit = devlink_pernet_pre_exit, | |
10342 | }; | |
10343 | ||
f4b6bcc7 | 10344 | static int __init devlink_init(void) |
bfcd3a46 | 10345 | { |
070c63f2 JP |
10346 | int err; |
10347 | ||
10348 | err = genl_register_family(&devlink_nl_family); | |
10349 | if (err) | |
10350 | goto out; | |
10351 | err = register_pernet_subsys(&devlink_pernet_ops); | |
10352 | ||
10353 | out: | |
10354 | WARN_ON(err); | |
10355 | return err; | |
bfcd3a46 JP |
10356 | } |
10357 | ||
f4b6bcc7 | 10358 | subsys_initcall(devlink_init); |