]>
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> | |
0f420b6c | 30 | #include <net/drop_monitor.h> |
e5224f0f JP |
31 | #define CREATE_TRACE_POINTS |
32 | #include <trace/events/devlink.h> | |
33 | ||
11770091 AS |
34 | static struct devlink_dpipe_field devlink_dpipe_fields_ethernet[] = { |
35 | { | |
12bdc5e1 | 36 | .name = "destination mac", |
11770091 AS |
37 | .id = DEVLINK_DPIPE_FIELD_ETHERNET_DST_MAC, |
38 | .bitwidth = 48, | |
39 | }, | |
40 | }; | |
41 | ||
42 | struct devlink_dpipe_header devlink_dpipe_header_ethernet = { | |
43 | .name = "ethernet", | |
44 | .id = DEVLINK_DPIPE_HEADER_ETHERNET, | |
45 | .fields = devlink_dpipe_fields_ethernet, | |
46 | .fields_count = ARRAY_SIZE(devlink_dpipe_fields_ethernet), | |
47 | .global = true, | |
48 | }; | |
49 | EXPORT_SYMBOL(devlink_dpipe_header_ethernet); | |
50 | ||
3fb886ec AS |
51 | static struct devlink_dpipe_field devlink_dpipe_fields_ipv4[] = { |
52 | { | |
53 | .name = "destination ip", | |
54 | .id = DEVLINK_DPIPE_FIELD_IPV4_DST_IP, | |
55 | .bitwidth = 32, | |
56 | }, | |
57 | }; | |
58 | ||
59 | struct devlink_dpipe_header devlink_dpipe_header_ipv4 = { | |
60 | .name = "ipv4", | |
61 | .id = DEVLINK_DPIPE_HEADER_IPV4, | |
62 | .fields = devlink_dpipe_fields_ipv4, | |
63 | .fields_count = ARRAY_SIZE(devlink_dpipe_fields_ipv4), | |
64 | .global = true, | |
65 | }; | |
66 | EXPORT_SYMBOL(devlink_dpipe_header_ipv4); | |
67 | ||
1797f5b3 AS |
68 | static struct devlink_dpipe_field devlink_dpipe_fields_ipv6[] = { |
69 | { | |
70 | .name = "destination ip", | |
71 | .id = DEVLINK_DPIPE_FIELD_IPV6_DST_IP, | |
72 | .bitwidth = 128, | |
73 | }, | |
74 | }; | |
75 | ||
76 | struct devlink_dpipe_header devlink_dpipe_header_ipv6 = { | |
77 | .name = "ipv6", | |
78 | .id = DEVLINK_DPIPE_HEADER_IPV6, | |
79 | .fields = devlink_dpipe_fields_ipv6, | |
80 | .fields_count = ARRAY_SIZE(devlink_dpipe_fields_ipv6), | |
81 | .global = true, | |
82 | }; | |
83 | EXPORT_SYMBOL(devlink_dpipe_header_ipv6); | |
84 | ||
e5224f0f | 85 | EXPORT_TRACEPOINT_SYMBOL_GPL(devlink_hwmsg); |
57186a5f | 86 | EXPORT_TRACEPOINT_SYMBOL_GPL(devlink_hwerr); |
bfcd3a46 JP |
87 | |
88 | static LIST_HEAD(devlink_list); | |
89 | ||
90 | /* devlink_mutex | |
91 | * | |
92 | * An overall lock guarding every operation coming from userspace. | |
93 | * It also guards devlink devices list and it is taken when | |
94 | * driver registers/unregisters it. | |
95 | */ | |
96 | static DEFINE_MUTEX(devlink_mutex); | |
97 | ||
471f894f | 98 | struct net *devlink_net(const struct devlink *devlink) |
bfcd3a46 JP |
99 | { |
100 | return read_pnet(&devlink->_net); | |
101 | } | |
471f894f | 102 | EXPORT_SYMBOL_GPL(devlink_net); |
bfcd3a46 | 103 | |
8273fd84 | 104 | static void __devlink_net_set(struct devlink *devlink, struct net *net) |
bfcd3a46 JP |
105 | { |
106 | write_pnet(&devlink->_net, net); | |
107 | } | |
108 | ||
8273fd84 JP |
109 | void devlink_net_set(struct devlink *devlink, struct net *net) |
110 | { | |
111 | if (WARN_ON(devlink->registered)) | |
112 | return; | |
113 | __devlink_net_set(devlink, net); | |
114 | } | |
115 | EXPORT_SYMBOL_GPL(devlink_net_set); | |
116 | ||
bfcd3a46 JP |
117 | static struct devlink *devlink_get_from_attrs(struct net *net, |
118 | struct nlattr **attrs) | |
119 | { | |
120 | struct devlink *devlink; | |
121 | char *busname; | |
122 | char *devname; | |
123 | ||
124 | if (!attrs[DEVLINK_ATTR_BUS_NAME] || !attrs[DEVLINK_ATTR_DEV_NAME]) | |
125 | return ERR_PTR(-EINVAL); | |
126 | ||
127 | busname = nla_data(attrs[DEVLINK_ATTR_BUS_NAME]); | |
128 | devname = nla_data(attrs[DEVLINK_ATTR_DEV_NAME]); | |
129 | ||
dac7c08f PP |
130 | lockdep_assert_held(&devlink_mutex); |
131 | ||
bfcd3a46 JP |
132 | list_for_each_entry(devlink, &devlink_list, list) { |
133 | if (strcmp(devlink->dev->bus->name, busname) == 0 && | |
134 | strcmp(dev_name(devlink->dev), devname) == 0 && | |
135 | net_eq(devlink_net(devlink), net)) | |
136 | return devlink; | |
137 | } | |
138 | ||
139 | return ERR_PTR(-ENODEV); | |
140 | } | |
141 | ||
142 | static struct devlink *devlink_get_from_info(struct genl_info *info) | |
143 | { | |
144 | return devlink_get_from_attrs(genl_info_net(info), info->attrs); | |
145 | } | |
146 | ||
147 | static struct devlink_port *devlink_port_get_by_index(struct devlink *devlink, | |
c7282b50 | 148 | unsigned int port_index) |
bfcd3a46 JP |
149 | { |
150 | struct devlink_port *devlink_port; | |
151 | ||
152 | list_for_each_entry(devlink_port, &devlink->port_list, list) { | |
153 | if (devlink_port->index == port_index) | |
154 | return devlink_port; | |
155 | } | |
156 | return NULL; | |
157 | } | |
158 | ||
c7282b50 PP |
159 | static bool devlink_port_index_exists(struct devlink *devlink, |
160 | unsigned int port_index) | |
bfcd3a46 JP |
161 | { |
162 | return devlink_port_get_by_index(devlink, port_index); | |
163 | } | |
164 | ||
165 | static struct devlink_port *devlink_port_get_from_attrs(struct devlink *devlink, | |
166 | struct nlattr **attrs) | |
167 | { | |
168 | if (attrs[DEVLINK_ATTR_PORT_INDEX]) { | |
169 | u32 port_index = nla_get_u32(attrs[DEVLINK_ATTR_PORT_INDEX]); | |
170 | struct devlink_port *devlink_port; | |
171 | ||
172 | devlink_port = devlink_port_get_by_index(devlink, port_index); | |
173 | if (!devlink_port) | |
174 | return ERR_PTR(-ENODEV); | |
175 | return devlink_port; | |
176 | } | |
177 | return ERR_PTR(-EINVAL); | |
178 | } | |
179 | ||
180 | static struct devlink_port *devlink_port_get_from_info(struct devlink *devlink, | |
181 | struct genl_info *info) | |
182 | { | |
183 | return devlink_port_get_from_attrs(devlink, info->attrs); | |
184 | } | |
185 | ||
bf797471 JP |
186 | struct devlink_sb { |
187 | struct list_head list; | |
188 | unsigned int index; | |
189 | u32 size; | |
190 | u16 ingress_pools_count; | |
191 | u16 egress_pools_count; | |
192 | u16 ingress_tc_count; | |
193 | u16 egress_tc_count; | |
194 | }; | |
195 | ||
196 | static u16 devlink_sb_pool_count(struct devlink_sb *devlink_sb) | |
197 | { | |
198 | return devlink_sb->ingress_pools_count + devlink_sb->egress_pools_count; | |
199 | } | |
200 | ||
201 | static struct devlink_sb *devlink_sb_get_by_index(struct devlink *devlink, | |
202 | unsigned int sb_index) | |
203 | { | |
204 | struct devlink_sb *devlink_sb; | |
205 | ||
206 | list_for_each_entry(devlink_sb, &devlink->sb_list, list) { | |
207 | if (devlink_sb->index == sb_index) | |
208 | return devlink_sb; | |
209 | } | |
210 | return NULL; | |
211 | } | |
212 | ||
213 | static bool devlink_sb_index_exists(struct devlink *devlink, | |
214 | unsigned int sb_index) | |
215 | { | |
216 | return devlink_sb_get_by_index(devlink, sb_index); | |
217 | } | |
218 | ||
219 | static struct devlink_sb *devlink_sb_get_from_attrs(struct devlink *devlink, | |
220 | struct nlattr **attrs) | |
221 | { | |
222 | if (attrs[DEVLINK_ATTR_SB_INDEX]) { | |
223 | u32 sb_index = nla_get_u32(attrs[DEVLINK_ATTR_SB_INDEX]); | |
224 | struct devlink_sb *devlink_sb; | |
225 | ||
226 | devlink_sb = devlink_sb_get_by_index(devlink, sb_index); | |
227 | if (!devlink_sb) | |
228 | return ERR_PTR(-ENODEV); | |
229 | return devlink_sb; | |
230 | } | |
231 | return ERR_PTR(-EINVAL); | |
232 | } | |
233 | ||
234 | static struct devlink_sb *devlink_sb_get_from_info(struct devlink *devlink, | |
235 | struct genl_info *info) | |
236 | { | |
237 | return devlink_sb_get_from_attrs(devlink, info->attrs); | |
238 | } | |
239 | ||
240 | static int devlink_sb_pool_index_get_from_attrs(struct devlink_sb *devlink_sb, | |
241 | struct nlattr **attrs, | |
242 | u16 *p_pool_index) | |
243 | { | |
244 | u16 val; | |
245 | ||
246 | if (!attrs[DEVLINK_ATTR_SB_POOL_INDEX]) | |
247 | return -EINVAL; | |
248 | ||
249 | val = nla_get_u16(attrs[DEVLINK_ATTR_SB_POOL_INDEX]); | |
250 | if (val >= devlink_sb_pool_count(devlink_sb)) | |
251 | return -EINVAL; | |
252 | *p_pool_index = val; | |
253 | return 0; | |
254 | } | |
255 | ||
256 | static int devlink_sb_pool_index_get_from_info(struct devlink_sb *devlink_sb, | |
257 | struct genl_info *info, | |
258 | u16 *p_pool_index) | |
259 | { | |
260 | return devlink_sb_pool_index_get_from_attrs(devlink_sb, info->attrs, | |
261 | p_pool_index); | |
262 | } | |
263 | ||
264 | static int | |
265 | devlink_sb_pool_type_get_from_attrs(struct nlattr **attrs, | |
266 | enum devlink_sb_pool_type *p_pool_type) | |
267 | { | |
268 | u8 val; | |
269 | ||
270 | if (!attrs[DEVLINK_ATTR_SB_POOL_TYPE]) | |
271 | return -EINVAL; | |
272 | ||
273 | val = nla_get_u8(attrs[DEVLINK_ATTR_SB_POOL_TYPE]); | |
274 | if (val != DEVLINK_SB_POOL_TYPE_INGRESS && | |
275 | val != DEVLINK_SB_POOL_TYPE_EGRESS) | |
276 | return -EINVAL; | |
277 | *p_pool_type = val; | |
278 | return 0; | |
279 | } | |
280 | ||
281 | static int | |
282 | devlink_sb_pool_type_get_from_info(struct genl_info *info, | |
283 | enum devlink_sb_pool_type *p_pool_type) | |
284 | { | |
285 | return devlink_sb_pool_type_get_from_attrs(info->attrs, p_pool_type); | |
286 | } | |
287 | ||
288 | static int | |
289 | devlink_sb_th_type_get_from_attrs(struct nlattr **attrs, | |
290 | enum devlink_sb_threshold_type *p_th_type) | |
291 | { | |
292 | u8 val; | |
293 | ||
294 | if (!attrs[DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE]) | |
295 | return -EINVAL; | |
296 | ||
297 | val = nla_get_u8(attrs[DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE]); | |
298 | if (val != DEVLINK_SB_THRESHOLD_TYPE_STATIC && | |
299 | val != DEVLINK_SB_THRESHOLD_TYPE_DYNAMIC) | |
300 | return -EINVAL; | |
301 | *p_th_type = val; | |
302 | return 0; | |
303 | } | |
304 | ||
305 | static int | |
306 | devlink_sb_th_type_get_from_info(struct genl_info *info, | |
307 | enum devlink_sb_threshold_type *p_th_type) | |
308 | { | |
309 | return devlink_sb_th_type_get_from_attrs(info->attrs, p_th_type); | |
310 | } | |
311 | ||
312 | static int | |
313 | devlink_sb_tc_index_get_from_attrs(struct devlink_sb *devlink_sb, | |
314 | struct nlattr **attrs, | |
315 | enum devlink_sb_pool_type pool_type, | |
316 | u16 *p_tc_index) | |
317 | { | |
318 | u16 val; | |
319 | ||
320 | if (!attrs[DEVLINK_ATTR_SB_TC_INDEX]) | |
321 | return -EINVAL; | |
322 | ||
323 | val = nla_get_u16(attrs[DEVLINK_ATTR_SB_TC_INDEX]); | |
324 | if (pool_type == DEVLINK_SB_POOL_TYPE_INGRESS && | |
325 | val >= devlink_sb->ingress_tc_count) | |
326 | return -EINVAL; | |
327 | if (pool_type == DEVLINK_SB_POOL_TYPE_EGRESS && | |
328 | val >= devlink_sb->egress_tc_count) | |
329 | return -EINVAL; | |
330 | *p_tc_index = val; | |
331 | return 0; | |
332 | } | |
333 | ||
334 | static int | |
335 | devlink_sb_tc_index_get_from_info(struct devlink_sb *devlink_sb, | |
336 | struct genl_info *info, | |
337 | enum devlink_sb_pool_type pool_type, | |
338 | u16 *p_tc_index) | |
339 | { | |
340 | return devlink_sb_tc_index_get_from_attrs(devlink_sb, info->attrs, | |
341 | pool_type, p_tc_index); | |
342 | } | |
343 | ||
b16ebe92 AV |
344 | struct devlink_region { |
345 | struct devlink *devlink; | |
346 | struct list_head list; | |
e8937681 | 347 | const struct devlink_region_ops *ops; |
b16ebe92 AV |
348 | struct list_head snapshot_list; |
349 | u32 max_snapshots; | |
350 | u32 cur_snapshots; | |
351 | u64 size; | |
352 | }; | |
353 | ||
d7e52722 AV |
354 | struct devlink_snapshot { |
355 | struct list_head list; | |
356 | struct devlink_region *region; | |
d7e52722 AV |
357 | u8 *data; |
358 | u32 id; | |
359 | }; | |
360 | ||
b16ebe92 AV |
361 | static struct devlink_region * |
362 | devlink_region_get_by_name(struct devlink *devlink, const char *region_name) | |
363 | { | |
364 | struct devlink_region *region; | |
365 | ||
366 | list_for_each_entry(region, &devlink->region_list, list) | |
e8937681 | 367 | if (!strcmp(region->ops->name, region_name)) |
b16ebe92 AV |
368 | return region; |
369 | ||
370 | return NULL; | |
371 | } | |
372 | ||
d7e52722 AV |
373 | static struct devlink_snapshot * |
374 | devlink_region_snapshot_get_by_id(struct devlink_region *region, u32 id) | |
375 | { | |
376 | struct devlink_snapshot *snapshot; | |
377 | ||
378 | list_for_each_entry(snapshot, ®ion->snapshot_list, list) | |
379 | if (snapshot->id == id) | |
380 | return snapshot; | |
381 | ||
382 | return NULL; | |
383 | } | |
384 | ||
1fc2257e JP |
385 | #define DEVLINK_NL_FLAG_NEED_DEVLINK BIT(0) |
386 | #define DEVLINK_NL_FLAG_NEED_PORT BIT(1) | |
bf797471 | 387 | #define DEVLINK_NL_FLAG_NEED_SB BIT(2) |
2406e7e5 AS |
388 | |
389 | /* The per devlink instance lock is taken by default in the pre-doit | |
390 | * operation, yet several commands do not require this. The global | |
391 | * devlink lock is taken and protects from disruption by user-calls. | |
392 | */ | |
393 | #define DEVLINK_NL_FLAG_NO_LOCK BIT(3) | |
bfcd3a46 JP |
394 | |
395 | static int devlink_nl_pre_doit(const struct genl_ops *ops, | |
396 | struct sk_buff *skb, struct genl_info *info) | |
397 | { | |
398 | struct devlink *devlink; | |
2406e7e5 | 399 | int err; |
bfcd3a46 JP |
400 | |
401 | mutex_lock(&devlink_mutex); | |
402 | devlink = devlink_get_from_info(info); | |
403 | if (IS_ERR(devlink)) { | |
404 | mutex_unlock(&devlink_mutex); | |
405 | return PTR_ERR(devlink); | |
406 | } | |
2406e7e5 AS |
407 | if (~ops->internal_flags & DEVLINK_NL_FLAG_NO_LOCK) |
408 | mutex_lock(&devlink->lock); | |
1fc2257e JP |
409 | if (ops->internal_flags & DEVLINK_NL_FLAG_NEED_DEVLINK) { |
410 | info->user_ptr[0] = devlink; | |
411 | } else if (ops->internal_flags & DEVLINK_NL_FLAG_NEED_PORT) { | |
bfcd3a46 JP |
412 | struct devlink_port *devlink_port; |
413 | ||
bfcd3a46 JP |
414 | devlink_port = devlink_port_get_from_info(devlink, info); |
415 | if (IS_ERR(devlink_port)) { | |
2406e7e5 AS |
416 | err = PTR_ERR(devlink_port); |
417 | goto unlock; | |
bfcd3a46 | 418 | } |
1fc2257e | 419 | info->user_ptr[0] = devlink_port; |
bfcd3a46 | 420 | } |
bf797471 JP |
421 | if (ops->internal_flags & DEVLINK_NL_FLAG_NEED_SB) { |
422 | struct devlink_sb *devlink_sb; | |
423 | ||
424 | devlink_sb = devlink_sb_get_from_info(devlink, info); | |
425 | if (IS_ERR(devlink_sb)) { | |
2406e7e5 AS |
426 | err = PTR_ERR(devlink_sb); |
427 | goto unlock; | |
bf797471 JP |
428 | } |
429 | info->user_ptr[1] = devlink_sb; | |
430 | } | |
bfcd3a46 | 431 | return 0; |
2406e7e5 AS |
432 | |
433 | unlock: | |
434 | if (~ops->internal_flags & DEVLINK_NL_FLAG_NO_LOCK) | |
435 | mutex_unlock(&devlink->lock); | |
436 | mutex_unlock(&devlink_mutex); | |
437 | return err; | |
bfcd3a46 JP |
438 | } |
439 | ||
440 | static void devlink_nl_post_doit(const struct genl_ops *ops, | |
441 | struct sk_buff *skb, struct genl_info *info) | |
442 | { | |
2406e7e5 AS |
443 | struct devlink *devlink; |
444 | ||
070c63f2 JP |
445 | /* When devlink changes netns, it would not be found |
446 | * by devlink_get_from_info(). So try if it is stored first. | |
447 | */ | |
448 | if (ops->internal_flags & DEVLINK_NL_FLAG_NEED_DEVLINK) { | |
449 | devlink = info->user_ptr[0]; | |
450 | } else { | |
451 | devlink = devlink_get_from_info(info); | |
452 | WARN_ON(IS_ERR(devlink)); | |
453 | } | |
454 | if (!IS_ERR(devlink) && ~ops->internal_flags & DEVLINK_NL_FLAG_NO_LOCK) | |
2406e7e5 | 455 | mutex_unlock(&devlink->lock); |
bfcd3a46 JP |
456 | mutex_unlock(&devlink_mutex); |
457 | } | |
458 | ||
489111e5 | 459 | static struct genl_family devlink_nl_family; |
bfcd3a46 JP |
460 | |
461 | enum devlink_multicast_groups { | |
462 | DEVLINK_MCGRP_CONFIG, | |
463 | }; | |
464 | ||
465 | static const struct genl_multicast_group devlink_nl_mcgrps[] = { | |
466 | [DEVLINK_MCGRP_CONFIG] = { .name = DEVLINK_GENL_MCGRP_CONFIG_NAME }, | |
467 | }; | |
468 | ||
469 | static int devlink_nl_put_handle(struct sk_buff *msg, struct devlink *devlink) | |
470 | { | |
471 | if (nla_put_string(msg, DEVLINK_ATTR_BUS_NAME, devlink->dev->bus->name)) | |
472 | return -EMSGSIZE; | |
473 | if (nla_put_string(msg, DEVLINK_ATTR_DEV_NAME, dev_name(devlink->dev))) | |
474 | return -EMSGSIZE; | |
475 | return 0; | |
476 | } | |
477 | ||
478 | static int devlink_nl_fill(struct sk_buff *msg, struct devlink *devlink, | |
479 | enum devlink_command cmd, u32 portid, | |
480 | u32 seq, int flags) | |
481 | { | |
482 | void *hdr; | |
483 | ||
484 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
485 | if (!hdr) | |
486 | return -EMSGSIZE; | |
487 | ||
488 | if (devlink_nl_put_handle(msg, devlink)) | |
489 | goto nla_put_failure; | |
2670ac26 JP |
490 | if (nla_put_u8(msg, DEVLINK_ATTR_RELOAD_FAILED, devlink->reload_failed)) |
491 | goto nla_put_failure; | |
bfcd3a46 JP |
492 | |
493 | genlmsg_end(msg, hdr); | |
494 | return 0; | |
495 | ||
496 | nla_put_failure: | |
497 | genlmsg_cancel(msg, hdr); | |
498 | return -EMSGSIZE; | |
499 | } | |
500 | ||
501 | static void devlink_notify(struct devlink *devlink, enum devlink_command cmd) | |
502 | { | |
503 | struct sk_buff *msg; | |
504 | int err; | |
505 | ||
506 | WARN_ON(cmd != DEVLINK_CMD_NEW && cmd != DEVLINK_CMD_DEL); | |
507 | ||
508 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
509 | if (!msg) | |
510 | return; | |
511 | ||
512 | err = devlink_nl_fill(msg, devlink, cmd, 0, 0, 0); | |
513 | if (err) { | |
514 | nlmsg_free(msg); | |
515 | return; | |
516 | } | |
517 | ||
518 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), | |
519 | msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
520 | } | |
521 | ||
b9ffcbaf JP |
522 | static int devlink_nl_port_attrs_put(struct sk_buff *msg, |
523 | struct devlink_port *devlink_port) | |
524 | { | |
525 | struct devlink_port_attrs *attrs = &devlink_port->attrs; | |
526 | ||
527 | if (!attrs->set) | |
528 | return 0; | |
5ec1380a JP |
529 | if (nla_put_u16(msg, DEVLINK_ATTR_PORT_FLAVOUR, attrs->flavour)) |
530 | return -EMSGSIZE; | |
58b6be41 PP |
531 | switch (devlink_port->attrs.flavour) { |
532 | case DEVLINK_PORT_FLAVOUR_PCI_PF: | |
98fd2d65 PP |
533 | if (nla_put_u16(msg, DEVLINK_ATTR_PORT_PCI_PF_NUMBER, |
534 | attrs->pci_pf.pf)) | |
535 | return -EMSGSIZE; | |
58b6be41 PP |
536 | break; |
537 | case DEVLINK_PORT_FLAVOUR_PCI_VF: | |
e41b6bf3 PP |
538 | if (nla_put_u16(msg, DEVLINK_ATTR_PORT_PCI_PF_NUMBER, |
539 | attrs->pci_vf.pf) || | |
540 | nla_put_u16(msg, DEVLINK_ATTR_PORT_PCI_VF_NUMBER, | |
541 | attrs->pci_vf.vf)) | |
542 | return -EMSGSIZE; | |
58b6be41 PP |
543 | break; |
544 | case DEVLINK_PORT_FLAVOUR_PHYSICAL: | |
545 | case DEVLINK_PORT_FLAVOUR_CPU: | |
546 | case DEVLINK_PORT_FLAVOUR_DSA: | |
acf1ee44 | 547 | case DEVLINK_PORT_FLAVOUR_VIRTUAL: |
58b6be41 PP |
548 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_NUMBER, |
549 | attrs->phys.port_number)) | |
550 | return -EMSGSIZE; | |
551 | if (!attrs->split) | |
552 | return 0; | |
553 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_SPLIT_GROUP, | |
554 | attrs->phys.port_number)) | |
555 | return -EMSGSIZE; | |
556 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_SPLIT_SUBPORT_NUMBER, | |
557 | attrs->phys.split_subport_number)) | |
558 | return -EMSGSIZE; | |
559 | break; | |
560 | default: | |
561 | break; | |
98fd2d65 | 562 | } |
b9ffcbaf JP |
563 | return 0; |
564 | } | |
565 | ||
bfcd3a46 JP |
566 | static int devlink_nl_port_fill(struct sk_buff *msg, struct devlink *devlink, |
567 | struct devlink_port *devlink_port, | |
568 | enum devlink_command cmd, u32 portid, | |
569 | u32 seq, int flags) | |
570 | { | |
571 | void *hdr; | |
572 | ||
573 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
574 | if (!hdr) | |
575 | return -EMSGSIZE; | |
576 | ||
577 | if (devlink_nl_put_handle(msg, devlink)) | |
578 | goto nla_put_failure; | |
579 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, devlink_port->index)) | |
580 | goto nla_put_failure; | |
b8f97554 | 581 | |
0f420b6c | 582 | spin_lock_bh(&devlink_port->type_lock); |
bfcd3a46 | 583 | if (nla_put_u16(msg, DEVLINK_ATTR_PORT_TYPE, devlink_port->type)) |
b8f97554 | 584 | goto nla_put_failure_type_locked; |
bfcd3a46 JP |
585 | if (devlink_port->desired_type != DEVLINK_PORT_TYPE_NOTSET && |
586 | nla_put_u16(msg, DEVLINK_ATTR_PORT_DESIRED_TYPE, | |
587 | devlink_port->desired_type)) | |
b8f97554 | 588 | goto nla_put_failure_type_locked; |
bfcd3a46 JP |
589 | if (devlink_port->type == DEVLINK_PORT_TYPE_ETH) { |
590 | struct net_device *netdev = devlink_port->type_dev; | |
591 | ||
592 | if (netdev && | |
593 | (nla_put_u32(msg, DEVLINK_ATTR_PORT_NETDEV_IFINDEX, | |
594 | netdev->ifindex) || | |
595 | nla_put_string(msg, DEVLINK_ATTR_PORT_NETDEV_NAME, | |
596 | netdev->name))) | |
b8f97554 | 597 | goto nla_put_failure_type_locked; |
bfcd3a46 JP |
598 | } |
599 | if (devlink_port->type == DEVLINK_PORT_TYPE_IB) { | |
600 | struct ib_device *ibdev = devlink_port->type_dev; | |
601 | ||
602 | if (ibdev && | |
603 | nla_put_string(msg, DEVLINK_ATTR_PORT_IBDEV_NAME, | |
604 | ibdev->name)) | |
b8f97554 | 605 | goto nla_put_failure_type_locked; |
bfcd3a46 | 606 | } |
0f420b6c | 607 | spin_unlock_bh(&devlink_port->type_lock); |
b9ffcbaf | 608 | if (devlink_nl_port_attrs_put(msg, devlink_port)) |
bfcd3a46 JP |
609 | goto nla_put_failure; |
610 | ||
611 | genlmsg_end(msg, hdr); | |
612 | return 0; | |
613 | ||
b8f97554 | 614 | nla_put_failure_type_locked: |
0f420b6c | 615 | spin_unlock_bh(&devlink_port->type_lock); |
bfcd3a46 JP |
616 | nla_put_failure: |
617 | genlmsg_cancel(msg, hdr); | |
618 | return -EMSGSIZE; | |
619 | } | |
620 | ||
621 | static void devlink_port_notify(struct devlink_port *devlink_port, | |
622 | enum devlink_command cmd) | |
623 | { | |
624 | struct devlink *devlink = devlink_port->devlink; | |
625 | struct sk_buff *msg; | |
626 | int err; | |
627 | ||
628 | if (!devlink_port->registered) | |
629 | return; | |
630 | ||
631 | WARN_ON(cmd != DEVLINK_CMD_PORT_NEW && cmd != DEVLINK_CMD_PORT_DEL); | |
632 | ||
633 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
634 | if (!msg) | |
635 | return; | |
636 | ||
637 | err = devlink_nl_port_fill(msg, devlink, devlink_port, cmd, 0, 0, 0); | |
638 | if (err) { | |
639 | nlmsg_free(msg); | |
640 | return; | |
641 | } | |
642 | ||
643 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), | |
644 | msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
645 | } | |
646 | ||
647 | static int devlink_nl_cmd_get_doit(struct sk_buff *skb, struct genl_info *info) | |
648 | { | |
649 | struct devlink *devlink = info->user_ptr[0]; | |
650 | struct sk_buff *msg; | |
651 | int err; | |
652 | ||
653 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
654 | if (!msg) | |
655 | return -ENOMEM; | |
656 | ||
657 | err = devlink_nl_fill(msg, devlink, DEVLINK_CMD_NEW, | |
658 | info->snd_portid, info->snd_seq, 0); | |
659 | if (err) { | |
660 | nlmsg_free(msg); | |
661 | return err; | |
662 | } | |
663 | ||
664 | return genlmsg_reply(msg, info); | |
665 | } | |
666 | ||
667 | static int devlink_nl_cmd_get_dumpit(struct sk_buff *msg, | |
668 | struct netlink_callback *cb) | |
669 | { | |
670 | struct devlink *devlink; | |
671 | int start = cb->args[0]; | |
672 | int idx = 0; | |
673 | int err; | |
674 | ||
675 | mutex_lock(&devlink_mutex); | |
676 | list_for_each_entry(devlink, &devlink_list, list) { | |
677 | if (!net_eq(devlink_net(devlink), sock_net(msg->sk))) | |
678 | continue; | |
679 | if (idx < start) { | |
680 | idx++; | |
681 | continue; | |
682 | } | |
683 | err = devlink_nl_fill(msg, devlink, DEVLINK_CMD_NEW, | |
684 | NETLINK_CB(cb->skb).portid, | |
685 | cb->nlh->nlmsg_seq, NLM_F_MULTI); | |
686 | if (err) | |
687 | goto out; | |
688 | idx++; | |
689 | } | |
690 | out: | |
691 | mutex_unlock(&devlink_mutex); | |
692 | ||
693 | cb->args[0] = idx; | |
694 | return msg->len; | |
695 | } | |
696 | ||
697 | static int devlink_nl_cmd_port_get_doit(struct sk_buff *skb, | |
698 | struct genl_info *info) | |
699 | { | |
1fc2257e JP |
700 | struct devlink_port *devlink_port = info->user_ptr[0]; |
701 | struct devlink *devlink = devlink_port->devlink; | |
bfcd3a46 JP |
702 | struct sk_buff *msg; |
703 | int err; | |
704 | ||
705 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
706 | if (!msg) | |
707 | return -ENOMEM; | |
708 | ||
709 | err = devlink_nl_port_fill(msg, devlink, devlink_port, | |
710 | DEVLINK_CMD_PORT_NEW, | |
711 | info->snd_portid, info->snd_seq, 0); | |
712 | if (err) { | |
713 | nlmsg_free(msg); | |
714 | return err; | |
715 | } | |
716 | ||
717 | return genlmsg_reply(msg, info); | |
718 | } | |
719 | ||
720 | static int devlink_nl_cmd_port_get_dumpit(struct sk_buff *msg, | |
721 | struct netlink_callback *cb) | |
722 | { | |
723 | struct devlink *devlink; | |
724 | struct devlink_port *devlink_port; | |
725 | int start = cb->args[0]; | |
726 | int idx = 0; | |
727 | int err; | |
728 | ||
729 | mutex_lock(&devlink_mutex); | |
bfcd3a46 JP |
730 | list_for_each_entry(devlink, &devlink_list, list) { |
731 | if (!net_eq(devlink_net(devlink), sock_net(msg->sk))) | |
732 | continue; | |
2406e7e5 | 733 | mutex_lock(&devlink->lock); |
bfcd3a46 JP |
734 | list_for_each_entry(devlink_port, &devlink->port_list, list) { |
735 | if (idx < start) { | |
736 | idx++; | |
737 | continue; | |
738 | } | |
739 | err = devlink_nl_port_fill(msg, devlink, devlink_port, | |
740 | DEVLINK_CMD_NEW, | |
741 | NETLINK_CB(cb->skb).portid, | |
742 | cb->nlh->nlmsg_seq, | |
743 | NLM_F_MULTI); | |
2406e7e5 AS |
744 | if (err) { |
745 | mutex_unlock(&devlink->lock); | |
bfcd3a46 | 746 | goto out; |
2406e7e5 | 747 | } |
bfcd3a46 JP |
748 | idx++; |
749 | } | |
2406e7e5 | 750 | mutex_unlock(&devlink->lock); |
bfcd3a46 JP |
751 | } |
752 | out: | |
bfcd3a46 JP |
753 | mutex_unlock(&devlink_mutex); |
754 | ||
755 | cb->args[0] = idx; | |
756 | return msg->len; | |
757 | } | |
758 | ||
759 | static int devlink_port_type_set(struct devlink *devlink, | |
760 | struct devlink_port *devlink_port, | |
761 | enum devlink_port_type port_type) | |
762 | ||
763 | { | |
764 | int err; | |
765 | ||
be6fe1d8 | 766 | if (devlink->ops->port_type_set) { |
bfcd3a46 JP |
767 | if (port_type == DEVLINK_PORT_TYPE_NOTSET) |
768 | return -EINVAL; | |
6edf1017 ER |
769 | if (port_type == devlink_port->type) |
770 | return 0; | |
bfcd3a46 JP |
771 | err = devlink->ops->port_type_set(devlink_port, port_type); |
772 | if (err) | |
773 | return err; | |
774 | devlink_port->desired_type = port_type; | |
775 | devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_NEW); | |
776 | return 0; | |
777 | } | |
778 | return -EOPNOTSUPP; | |
779 | } | |
780 | ||
781 | static int devlink_nl_cmd_port_set_doit(struct sk_buff *skb, | |
782 | struct genl_info *info) | |
783 | { | |
1fc2257e JP |
784 | struct devlink_port *devlink_port = info->user_ptr[0]; |
785 | struct devlink *devlink = devlink_port->devlink; | |
bfcd3a46 JP |
786 | int err; |
787 | ||
788 | if (info->attrs[DEVLINK_ATTR_PORT_TYPE]) { | |
789 | enum devlink_port_type port_type; | |
790 | ||
791 | port_type = nla_get_u16(info->attrs[DEVLINK_ATTR_PORT_TYPE]); | |
792 | err = devlink_port_type_set(devlink, devlink_port, port_type); | |
793 | if (err) | |
794 | return err; | |
795 | } | |
796 | return 0; | |
797 | } | |
798 | ||
ac0fc8a1 DA |
799 | static int devlink_port_split(struct devlink *devlink, u32 port_index, |
800 | u32 count, struct netlink_ext_ack *extack) | |
bfcd3a46 JP |
801 | |
802 | { | |
be6fe1d8 | 803 | if (devlink->ops->port_split) |
ac0fc8a1 DA |
804 | return devlink->ops->port_split(devlink, port_index, count, |
805 | extack); | |
bfcd3a46 JP |
806 | return -EOPNOTSUPP; |
807 | } | |
808 | ||
809 | static int devlink_nl_cmd_port_split_doit(struct sk_buff *skb, | |
810 | struct genl_info *info) | |
811 | { | |
812 | struct devlink *devlink = info->user_ptr[0]; | |
813 | u32 port_index; | |
814 | u32 count; | |
815 | ||
816 | if (!info->attrs[DEVLINK_ATTR_PORT_INDEX] || | |
817 | !info->attrs[DEVLINK_ATTR_PORT_SPLIT_COUNT]) | |
818 | return -EINVAL; | |
819 | ||
820 | port_index = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_INDEX]); | |
821 | count = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_SPLIT_COUNT]); | |
ac0fc8a1 | 822 | return devlink_port_split(devlink, port_index, count, info->extack); |
bfcd3a46 JP |
823 | } |
824 | ||
ac0fc8a1 DA |
825 | static int devlink_port_unsplit(struct devlink *devlink, u32 port_index, |
826 | struct netlink_ext_ack *extack) | |
bfcd3a46 JP |
827 | |
828 | { | |
be6fe1d8 | 829 | if (devlink->ops->port_unsplit) |
ac0fc8a1 | 830 | return devlink->ops->port_unsplit(devlink, port_index, extack); |
bfcd3a46 JP |
831 | return -EOPNOTSUPP; |
832 | } | |
833 | ||
834 | static int devlink_nl_cmd_port_unsplit_doit(struct sk_buff *skb, | |
835 | struct genl_info *info) | |
836 | { | |
837 | struct devlink *devlink = info->user_ptr[0]; | |
838 | u32 port_index; | |
839 | ||
840 | if (!info->attrs[DEVLINK_ATTR_PORT_INDEX]) | |
841 | return -EINVAL; | |
842 | ||
843 | port_index = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_INDEX]); | |
ac0fc8a1 | 844 | return devlink_port_unsplit(devlink, port_index, info->extack); |
bfcd3a46 JP |
845 | } |
846 | ||
bf797471 JP |
847 | static int devlink_nl_sb_fill(struct sk_buff *msg, struct devlink *devlink, |
848 | struct devlink_sb *devlink_sb, | |
849 | enum devlink_command cmd, u32 portid, | |
850 | u32 seq, int flags) | |
851 | { | |
852 | void *hdr; | |
853 | ||
854 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
855 | if (!hdr) | |
856 | return -EMSGSIZE; | |
857 | ||
858 | if (devlink_nl_put_handle(msg, devlink)) | |
859 | goto nla_put_failure; | |
860 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_INDEX, devlink_sb->index)) | |
861 | goto nla_put_failure; | |
862 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_SIZE, devlink_sb->size)) | |
863 | goto nla_put_failure; | |
864 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_INGRESS_POOL_COUNT, | |
865 | devlink_sb->ingress_pools_count)) | |
866 | goto nla_put_failure; | |
867 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_EGRESS_POOL_COUNT, | |
868 | devlink_sb->egress_pools_count)) | |
869 | goto nla_put_failure; | |
870 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_INGRESS_TC_COUNT, | |
871 | devlink_sb->ingress_tc_count)) | |
872 | goto nla_put_failure; | |
873 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_EGRESS_TC_COUNT, | |
874 | devlink_sb->egress_tc_count)) | |
875 | goto nla_put_failure; | |
876 | ||
877 | genlmsg_end(msg, hdr); | |
878 | return 0; | |
879 | ||
880 | nla_put_failure: | |
881 | genlmsg_cancel(msg, hdr); | |
882 | return -EMSGSIZE; | |
883 | } | |
884 | ||
885 | static int devlink_nl_cmd_sb_get_doit(struct sk_buff *skb, | |
886 | struct genl_info *info) | |
887 | { | |
888 | struct devlink *devlink = info->user_ptr[0]; | |
889 | struct devlink_sb *devlink_sb = info->user_ptr[1]; | |
890 | struct sk_buff *msg; | |
891 | int err; | |
892 | ||
893 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
894 | if (!msg) | |
895 | return -ENOMEM; | |
896 | ||
897 | err = devlink_nl_sb_fill(msg, devlink, devlink_sb, | |
898 | DEVLINK_CMD_SB_NEW, | |
899 | info->snd_portid, info->snd_seq, 0); | |
900 | if (err) { | |
901 | nlmsg_free(msg); | |
902 | return err; | |
903 | } | |
904 | ||
905 | return genlmsg_reply(msg, info); | |
906 | } | |
907 | ||
908 | static int devlink_nl_cmd_sb_get_dumpit(struct sk_buff *msg, | |
909 | struct netlink_callback *cb) | |
910 | { | |
911 | struct devlink *devlink; | |
912 | struct devlink_sb *devlink_sb; | |
913 | int start = cb->args[0]; | |
914 | int idx = 0; | |
915 | int err; | |
916 | ||
917 | mutex_lock(&devlink_mutex); | |
918 | list_for_each_entry(devlink, &devlink_list, list) { | |
919 | if (!net_eq(devlink_net(devlink), sock_net(msg->sk))) | |
920 | continue; | |
2406e7e5 | 921 | mutex_lock(&devlink->lock); |
bf797471 JP |
922 | list_for_each_entry(devlink_sb, &devlink->sb_list, list) { |
923 | if (idx < start) { | |
924 | idx++; | |
925 | continue; | |
926 | } | |
927 | err = devlink_nl_sb_fill(msg, devlink, devlink_sb, | |
928 | DEVLINK_CMD_SB_NEW, | |
929 | NETLINK_CB(cb->skb).portid, | |
930 | cb->nlh->nlmsg_seq, | |
931 | NLM_F_MULTI); | |
2406e7e5 AS |
932 | if (err) { |
933 | mutex_unlock(&devlink->lock); | |
bf797471 | 934 | goto out; |
2406e7e5 | 935 | } |
bf797471 JP |
936 | idx++; |
937 | } | |
2406e7e5 | 938 | mutex_unlock(&devlink->lock); |
bf797471 JP |
939 | } |
940 | out: | |
941 | mutex_unlock(&devlink_mutex); | |
942 | ||
943 | cb->args[0] = idx; | |
944 | return msg->len; | |
945 | } | |
946 | ||
947 | static int devlink_nl_sb_pool_fill(struct sk_buff *msg, struct devlink *devlink, | |
948 | struct devlink_sb *devlink_sb, | |
949 | u16 pool_index, enum devlink_command cmd, | |
950 | u32 portid, u32 seq, int flags) | |
951 | { | |
952 | struct devlink_sb_pool_info pool_info; | |
953 | void *hdr; | |
954 | int err; | |
955 | ||
956 | err = devlink->ops->sb_pool_get(devlink, devlink_sb->index, | |
957 | pool_index, &pool_info); | |
958 | if (err) | |
959 | return err; | |
960 | ||
961 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
962 | if (!hdr) | |
963 | return -EMSGSIZE; | |
964 | ||
965 | if (devlink_nl_put_handle(msg, devlink)) | |
966 | goto nla_put_failure; | |
967 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_INDEX, devlink_sb->index)) | |
968 | goto nla_put_failure; | |
969 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_POOL_INDEX, pool_index)) | |
970 | goto nla_put_failure; | |
971 | if (nla_put_u8(msg, DEVLINK_ATTR_SB_POOL_TYPE, pool_info.pool_type)) | |
972 | goto nla_put_failure; | |
973 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_POOL_SIZE, pool_info.size)) | |
974 | goto nla_put_failure; | |
975 | if (nla_put_u8(msg, DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE, | |
976 | pool_info.threshold_type)) | |
977 | goto nla_put_failure; | |
bff5731d JK |
978 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_POOL_CELL_SIZE, |
979 | pool_info.cell_size)) | |
980 | goto nla_put_failure; | |
bf797471 JP |
981 | |
982 | genlmsg_end(msg, hdr); | |
983 | return 0; | |
984 | ||
985 | nla_put_failure: | |
986 | genlmsg_cancel(msg, hdr); | |
987 | return -EMSGSIZE; | |
988 | } | |
989 | ||
990 | static int devlink_nl_cmd_sb_pool_get_doit(struct sk_buff *skb, | |
991 | struct genl_info *info) | |
992 | { | |
993 | struct devlink *devlink = info->user_ptr[0]; | |
994 | struct devlink_sb *devlink_sb = info->user_ptr[1]; | |
995 | struct sk_buff *msg; | |
996 | u16 pool_index; | |
997 | int err; | |
998 | ||
999 | err = devlink_sb_pool_index_get_from_info(devlink_sb, info, | |
1000 | &pool_index); | |
1001 | if (err) | |
1002 | return err; | |
1003 | ||
be6fe1d8 | 1004 | if (!devlink->ops->sb_pool_get) |
bf797471 JP |
1005 | return -EOPNOTSUPP; |
1006 | ||
1007 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
1008 | if (!msg) | |
1009 | return -ENOMEM; | |
1010 | ||
1011 | err = devlink_nl_sb_pool_fill(msg, devlink, devlink_sb, pool_index, | |
1012 | DEVLINK_CMD_SB_POOL_NEW, | |
1013 | info->snd_portid, info->snd_seq, 0); | |
1014 | if (err) { | |
1015 | nlmsg_free(msg); | |
1016 | return err; | |
1017 | } | |
1018 | ||
1019 | return genlmsg_reply(msg, info); | |
1020 | } | |
1021 | ||
1022 | static int __sb_pool_get_dumpit(struct sk_buff *msg, int start, int *p_idx, | |
1023 | struct devlink *devlink, | |
1024 | struct devlink_sb *devlink_sb, | |
1025 | u32 portid, u32 seq) | |
1026 | { | |
1027 | u16 pool_count = devlink_sb_pool_count(devlink_sb); | |
1028 | u16 pool_index; | |
1029 | int err; | |
1030 | ||
1031 | for (pool_index = 0; pool_index < pool_count; pool_index++) { | |
1032 | if (*p_idx < start) { | |
1033 | (*p_idx)++; | |
1034 | continue; | |
1035 | } | |
1036 | err = devlink_nl_sb_pool_fill(msg, devlink, | |
1037 | devlink_sb, | |
1038 | pool_index, | |
1039 | DEVLINK_CMD_SB_POOL_NEW, | |
1040 | portid, seq, NLM_F_MULTI); | |
1041 | if (err) | |
1042 | return err; | |
1043 | (*p_idx)++; | |
1044 | } | |
1045 | return 0; | |
1046 | } | |
1047 | ||
1048 | static int devlink_nl_cmd_sb_pool_get_dumpit(struct sk_buff *msg, | |
1049 | struct netlink_callback *cb) | |
1050 | { | |
1051 | struct devlink *devlink; | |
1052 | struct devlink_sb *devlink_sb; | |
1053 | int start = cb->args[0]; | |
1054 | int idx = 0; | |
c62c2cfb | 1055 | int err = 0; |
bf797471 JP |
1056 | |
1057 | mutex_lock(&devlink_mutex); | |
1058 | list_for_each_entry(devlink, &devlink_list, list) { | |
1059 | if (!net_eq(devlink_net(devlink), sock_net(msg->sk)) || | |
be6fe1d8 | 1060 | !devlink->ops->sb_pool_get) |
bf797471 | 1061 | continue; |
2406e7e5 | 1062 | mutex_lock(&devlink->lock); |
bf797471 JP |
1063 | list_for_each_entry(devlink_sb, &devlink->sb_list, list) { |
1064 | err = __sb_pool_get_dumpit(msg, start, &idx, devlink, | |
1065 | devlink_sb, | |
1066 | NETLINK_CB(cb->skb).portid, | |
1067 | cb->nlh->nlmsg_seq); | |
2406e7e5 AS |
1068 | if (err && err != -EOPNOTSUPP) { |
1069 | mutex_unlock(&devlink->lock); | |
bf797471 | 1070 | goto out; |
2406e7e5 | 1071 | } |
bf797471 | 1072 | } |
2406e7e5 | 1073 | mutex_unlock(&devlink->lock); |
bf797471 JP |
1074 | } |
1075 | out: | |
1076 | mutex_unlock(&devlink_mutex); | |
1077 | ||
c62c2cfb JP |
1078 | if (err != -EMSGSIZE) |
1079 | return err; | |
1080 | ||
bf797471 JP |
1081 | cb->args[0] = idx; |
1082 | return msg->len; | |
1083 | } | |
1084 | ||
1085 | static int devlink_sb_pool_set(struct devlink *devlink, unsigned int sb_index, | |
1086 | u16 pool_index, u32 size, | |
f2ad1a52 IS |
1087 | enum devlink_sb_threshold_type threshold_type, |
1088 | struct netlink_ext_ack *extack) | |
bf797471 JP |
1089 | |
1090 | { | |
1091 | const struct devlink_ops *ops = devlink->ops; | |
1092 | ||
be6fe1d8 | 1093 | if (ops->sb_pool_set) |
bf797471 | 1094 | return ops->sb_pool_set(devlink, sb_index, pool_index, |
f2ad1a52 | 1095 | size, threshold_type, extack); |
bf797471 JP |
1096 | return -EOPNOTSUPP; |
1097 | } | |
1098 | ||
1099 | static int devlink_nl_cmd_sb_pool_set_doit(struct sk_buff *skb, | |
1100 | struct genl_info *info) | |
1101 | { | |
1102 | struct devlink *devlink = info->user_ptr[0]; | |
1103 | struct devlink_sb *devlink_sb = info->user_ptr[1]; | |
1104 | enum devlink_sb_threshold_type threshold_type; | |
1105 | u16 pool_index; | |
1106 | u32 size; | |
1107 | int err; | |
1108 | ||
1109 | err = devlink_sb_pool_index_get_from_info(devlink_sb, info, | |
1110 | &pool_index); | |
1111 | if (err) | |
1112 | return err; | |
1113 | ||
1114 | err = devlink_sb_th_type_get_from_info(info, &threshold_type); | |
1115 | if (err) | |
1116 | return err; | |
1117 | ||
1118 | if (!info->attrs[DEVLINK_ATTR_SB_POOL_SIZE]) | |
1119 | return -EINVAL; | |
1120 | ||
1121 | size = nla_get_u32(info->attrs[DEVLINK_ATTR_SB_POOL_SIZE]); | |
1122 | return devlink_sb_pool_set(devlink, devlink_sb->index, | |
f2ad1a52 IS |
1123 | pool_index, size, threshold_type, |
1124 | info->extack); | |
bf797471 JP |
1125 | } |
1126 | ||
1127 | static int devlink_nl_sb_port_pool_fill(struct sk_buff *msg, | |
1128 | struct devlink *devlink, | |
1129 | struct devlink_port *devlink_port, | |
1130 | struct devlink_sb *devlink_sb, | |
1131 | u16 pool_index, | |
1132 | enum devlink_command cmd, | |
1133 | u32 portid, u32 seq, int flags) | |
1134 | { | |
df38dafd | 1135 | const struct devlink_ops *ops = devlink->ops; |
bf797471 JP |
1136 | u32 threshold; |
1137 | void *hdr; | |
1138 | int err; | |
1139 | ||
df38dafd JP |
1140 | err = ops->sb_port_pool_get(devlink_port, devlink_sb->index, |
1141 | pool_index, &threshold); | |
bf797471 JP |
1142 | if (err) |
1143 | return err; | |
1144 | ||
1145 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
1146 | if (!hdr) | |
1147 | return -EMSGSIZE; | |
1148 | ||
1149 | if (devlink_nl_put_handle(msg, devlink)) | |
1150 | goto nla_put_failure; | |
1151 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, devlink_port->index)) | |
1152 | goto nla_put_failure; | |
1153 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_INDEX, devlink_sb->index)) | |
1154 | goto nla_put_failure; | |
1155 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_POOL_INDEX, pool_index)) | |
1156 | goto nla_put_failure; | |
1157 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_THRESHOLD, threshold)) | |
1158 | goto nla_put_failure; | |
1159 | ||
df38dafd JP |
1160 | if (ops->sb_occ_port_pool_get) { |
1161 | u32 cur; | |
1162 | u32 max; | |
1163 | ||
1164 | err = ops->sb_occ_port_pool_get(devlink_port, devlink_sb->index, | |
1165 | pool_index, &cur, &max); | |
1166 | if (err && err != -EOPNOTSUPP) | |
1167 | return err; | |
1168 | if (!err) { | |
1169 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_OCC_CUR, cur)) | |
1170 | goto nla_put_failure; | |
1171 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_OCC_MAX, max)) | |
1172 | goto nla_put_failure; | |
1173 | } | |
1174 | } | |
1175 | ||
bf797471 JP |
1176 | genlmsg_end(msg, hdr); |
1177 | return 0; | |
1178 | ||
1179 | nla_put_failure: | |
1180 | genlmsg_cancel(msg, hdr); | |
1181 | return -EMSGSIZE; | |
1182 | } | |
1183 | ||
1184 | static int devlink_nl_cmd_sb_port_pool_get_doit(struct sk_buff *skb, | |
1185 | struct genl_info *info) | |
1186 | { | |
1187 | struct devlink_port *devlink_port = info->user_ptr[0]; | |
1188 | struct devlink *devlink = devlink_port->devlink; | |
1189 | struct devlink_sb *devlink_sb = info->user_ptr[1]; | |
1190 | struct sk_buff *msg; | |
1191 | u16 pool_index; | |
1192 | int err; | |
1193 | ||
1194 | err = devlink_sb_pool_index_get_from_info(devlink_sb, info, | |
1195 | &pool_index); | |
1196 | if (err) | |
1197 | return err; | |
1198 | ||
be6fe1d8 | 1199 | if (!devlink->ops->sb_port_pool_get) |
bf797471 JP |
1200 | return -EOPNOTSUPP; |
1201 | ||
1202 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
1203 | if (!msg) | |
1204 | return -ENOMEM; | |
1205 | ||
1206 | err = devlink_nl_sb_port_pool_fill(msg, devlink, devlink_port, | |
1207 | devlink_sb, pool_index, | |
1208 | DEVLINK_CMD_SB_PORT_POOL_NEW, | |
1209 | info->snd_portid, info->snd_seq, 0); | |
1210 | if (err) { | |
1211 | nlmsg_free(msg); | |
1212 | return err; | |
1213 | } | |
1214 | ||
1215 | return genlmsg_reply(msg, info); | |
1216 | } | |
1217 | ||
1218 | static int __sb_port_pool_get_dumpit(struct sk_buff *msg, int start, int *p_idx, | |
1219 | struct devlink *devlink, | |
1220 | struct devlink_sb *devlink_sb, | |
1221 | u32 portid, u32 seq) | |
1222 | { | |
1223 | struct devlink_port *devlink_port; | |
1224 | u16 pool_count = devlink_sb_pool_count(devlink_sb); | |
1225 | u16 pool_index; | |
1226 | int err; | |
1227 | ||
1228 | list_for_each_entry(devlink_port, &devlink->port_list, list) { | |
1229 | for (pool_index = 0; pool_index < pool_count; pool_index++) { | |
1230 | if (*p_idx < start) { | |
1231 | (*p_idx)++; | |
1232 | continue; | |
1233 | } | |
1234 | err = devlink_nl_sb_port_pool_fill(msg, devlink, | |
1235 | devlink_port, | |
1236 | devlink_sb, | |
1237 | pool_index, | |
1238 | DEVLINK_CMD_SB_PORT_POOL_NEW, | |
1239 | portid, seq, | |
1240 | NLM_F_MULTI); | |
1241 | if (err) | |
1242 | return err; | |
1243 | (*p_idx)++; | |
1244 | } | |
1245 | } | |
1246 | return 0; | |
1247 | } | |
1248 | ||
1249 | static int devlink_nl_cmd_sb_port_pool_get_dumpit(struct sk_buff *msg, | |
1250 | struct netlink_callback *cb) | |
1251 | { | |
1252 | struct devlink *devlink; | |
1253 | struct devlink_sb *devlink_sb; | |
1254 | int start = cb->args[0]; | |
1255 | int idx = 0; | |
c62c2cfb | 1256 | int err = 0; |
bf797471 JP |
1257 | |
1258 | mutex_lock(&devlink_mutex); | |
bf797471 JP |
1259 | list_for_each_entry(devlink, &devlink_list, list) { |
1260 | if (!net_eq(devlink_net(devlink), sock_net(msg->sk)) || | |
be6fe1d8 | 1261 | !devlink->ops->sb_port_pool_get) |
bf797471 | 1262 | continue; |
2406e7e5 | 1263 | mutex_lock(&devlink->lock); |
bf797471 JP |
1264 | list_for_each_entry(devlink_sb, &devlink->sb_list, list) { |
1265 | err = __sb_port_pool_get_dumpit(msg, start, &idx, | |
1266 | devlink, devlink_sb, | |
1267 | NETLINK_CB(cb->skb).portid, | |
1268 | cb->nlh->nlmsg_seq); | |
2406e7e5 AS |
1269 | if (err && err != -EOPNOTSUPP) { |
1270 | mutex_unlock(&devlink->lock); | |
bf797471 | 1271 | goto out; |
2406e7e5 | 1272 | } |
bf797471 | 1273 | } |
2406e7e5 | 1274 | mutex_unlock(&devlink->lock); |
bf797471 JP |
1275 | } |
1276 | out: | |
bf797471 JP |
1277 | mutex_unlock(&devlink_mutex); |
1278 | ||
c62c2cfb JP |
1279 | if (err != -EMSGSIZE) |
1280 | return err; | |
1281 | ||
bf797471 JP |
1282 | cb->args[0] = idx; |
1283 | return msg->len; | |
1284 | } | |
1285 | ||
1286 | static int devlink_sb_port_pool_set(struct devlink_port *devlink_port, | |
1287 | unsigned int sb_index, u16 pool_index, | |
f2ad1a52 IS |
1288 | u32 threshold, |
1289 | struct netlink_ext_ack *extack) | |
bf797471 JP |
1290 | |
1291 | { | |
1292 | const struct devlink_ops *ops = devlink_port->devlink->ops; | |
1293 | ||
be6fe1d8 | 1294 | if (ops->sb_port_pool_set) |
bf797471 | 1295 | return ops->sb_port_pool_set(devlink_port, sb_index, |
f2ad1a52 | 1296 | pool_index, threshold, extack); |
bf797471 JP |
1297 | return -EOPNOTSUPP; |
1298 | } | |
1299 | ||
1300 | static int devlink_nl_cmd_sb_port_pool_set_doit(struct sk_buff *skb, | |
1301 | struct genl_info *info) | |
1302 | { | |
1303 | struct devlink_port *devlink_port = info->user_ptr[0]; | |
1304 | struct devlink_sb *devlink_sb = info->user_ptr[1]; | |
1305 | u16 pool_index; | |
1306 | u32 threshold; | |
1307 | int err; | |
1308 | ||
1309 | err = devlink_sb_pool_index_get_from_info(devlink_sb, info, | |
1310 | &pool_index); | |
1311 | if (err) | |
1312 | return err; | |
1313 | ||
1314 | if (!info->attrs[DEVLINK_ATTR_SB_THRESHOLD]) | |
1315 | return -EINVAL; | |
1316 | ||
1317 | threshold = nla_get_u32(info->attrs[DEVLINK_ATTR_SB_THRESHOLD]); | |
1318 | return devlink_sb_port_pool_set(devlink_port, devlink_sb->index, | |
f2ad1a52 | 1319 | pool_index, threshold, info->extack); |
bf797471 JP |
1320 | } |
1321 | ||
1322 | static int | |
1323 | devlink_nl_sb_tc_pool_bind_fill(struct sk_buff *msg, struct devlink *devlink, | |
1324 | struct devlink_port *devlink_port, | |
1325 | struct devlink_sb *devlink_sb, u16 tc_index, | |
1326 | enum devlink_sb_pool_type pool_type, | |
1327 | enum devlink_command cmd, | |
1328 | u32 portid, u32 seq, int flags) | |
1329 | { | |
df38dafd | 1330 | const struct devlink_ops *ops = devlink->ops; |
bf797471 JP |
1331 | u16 pool_index; |
1332 | u32 threshold; | |
1333 | void *hdr; | |
1334 | int err; | |
1335 | ||
df38dafd JP |
1336 | err = ops->sb_tc_pool_bind_get(devlink_port, devlink_sb->index, |
1337 | tc_index, pool_type, | |
1338 | &pool_index, &threshold); | |
bf797471 JP |
1339 | if (err) |
1340 | return err; | |
1341 | ||
1342 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
1343 | if (!hdr) | |
1344 | return -EMSGSIZE; | |
1345 | ||
1346 | if (devlink_nl_put_handle(msg, devlink)) | |
1347 | goto nla_put_failure; | |
1348 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, devlink_port->index)) | |
1349 | goto nla_put_failure; | |
1350 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_INDEX, devlink_sb->index)) | |
1351 | goto nla_put_failure; | |
1352 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_TC_INDEX, tc_index)) | |
1353 | goto nla_put_failure; | |
1354 | if (nla_put_u8(msg, DEVLINK_ATTR_SB_POOL_TYPE, pool_type)) | |
1355 | goto nla_put_failure; | |
1356 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_POOL_INDEX, pool_index)) | |
1357 | goto nla_put_failure; | |
1358 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_THRESHOLD, threshold)) | |
1359 | goto nla_put_failure; | |
1360 | ||
df38dafd JP |
1361 | if (ops->sb_occ_tc_port_bind_get) { |
1362 | u32 cur; | |
1363 | u32 max; | |
1364 | ||
1365 | err = ops->sb_occ_tc_port_bind_get(devlink_port, | |
1366 | devlink_sb->index, | |
1367 | tc_index, pool_type, | |
1368 | &cur, &max); | |
1369 | if (err && err != -EOPNOTSUPP) | |
1370 | return err; | |
1371 | if (!err) { | |
1372 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_OCC_CUR, cur)) | |
1373 | goto nla_put_failure; | |
1374 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_OCC_MAX, max)) | |
1375 | goto nla_put_failure; | |
1376 | } | |
1377 | } | |
1378 | ||
bf797471 JP |
1379 | genlmsg_end(msg, hdr); |
1380 | return 0; | |
1381 | ||
1382 | nla_put_failure: | |
1383 | genlmsg_cancel(msg, hdr); | |
1384 | return -EMSGSIZE; | |
1385 | } | |
1386 | ||
1387 | static int devlink_nl_cmd_sb_tc_pool_bind_get_doit(struct sk_buff *skb, | |
1388 | struct genl_info *info) | |
1389 | { | |
1390 | struct devlink_port *devlink_port = info->user_ptr[0]; | |
1391 | struct devlink *devlink = devlink_port->devlink; | |
1392 | struct devlink_sb *devlink_sb = info->user_ptr[1]; | |
1393 | struct sk_buff *msg; | |
1394 | enum devlink_sb_pool_type pool_type; | |
1395 | u16 tc_index; | |
1396 | int err; | |
1397 | ||
1398 | err = devlink_sb_pool_type_get_from_info(info, &pool_type); | |
1399 | if (err) | |
1400 | return err; | |
1401 | ||
1402 | err = devlink_sb_tc_index_get_from_info(devlink_sb, info, | |
1403 | pool_type, &tc_index); | |
1404 | if (err) | |
1405 | return err; | |
1406 | ||
be6fe1d8 | 1407 | if (!devlink->ops->sb_tc_pool_bind_get) |
bf797471 JP |
1408 | return -EOPNOTSUPP; |
1409 | ||
1410 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
1411 | if (!msg) | |
1412 | return -ENOMEM; | |
1413 | ||
1414 | err = devlink_nl_sb_tc_pool_bind_fill(msg, devlink, devlink_port, | |
1415 | devlink_sb, tc_index, pool_type, | |
1416 | DEVLINK_CMD_SB_TC_POOL_BIND_NEW, | |
1417 | info->snd_portid, | |
1418 | info->snd_seq, 0); | |
1419 | if (err) { | |
1420 | nlmsg_free(msg); | |
1421 | return err; | |
1422 | } | |
1423 | ||
1424 | return genlmsg_reply(msg, info); | |
1425 | } | |
1426 | ||
1427 | static int __sb_tc_pool_bind_get_dumpit(struct sk_buff *msg, | |
1428 | int start, int *p_idx, | |
1429 | struct devlink *devlink, | |
1430 | struct devlink_sb *devlink_sb, | |
1431 | u32 portid, u32 seq) | |
1432 | { | |
1433 | struct devlink_port *devlink_port; | |
1434 | u16 tc_index; | |
1435 | int err; | |
1436 | ||
1437 | list_for_each_entry(devlink_port, &devlink->port_list, list) { | |
1438 | for (tc_index = 0; | |
1439 | tc_index < devlink_sb->ingress_tc_count; tc_index++) { | |
1440 | if (*p_idx < start) { | |
1441 | (*p_idx)++; | |
1442 | continue; | |
1443 | } | |
1444 | err = devlink_nl_sb_tc_pool_bind_fill(msg, devlink, | |
1445 | devlink_port, | |
1446 | devlink_sb, | |
1447 | tc_index, | |
1448 | DEVLINK_SB_POOL_TYPE_INGRESS, | |
1449 | DEVLINK_CMD_SB_TC_POOL_BIND_NEW, | |
1450 | portid, seq, | |
1451 | NLM_F_MULTI); | |
1452 | if (err) | |
1453 | return err; | |
1454 | (*p_idx)++; | |
1455 | } | |
1456 | for (tc_index = 0; | |
1457 | tc_index < devlink_sb->egress_tc_count; tc_index++) { | |
1458 | if (*p_idx < start) { | |
1459 | (*p_idx)++; | |
1460 | continue; | |
1461 | } | |
1462 | err = devlink_nl_sb_tc_pool_bind_fill(msg, devlink, | |
1463 | devlink_port, | |
1464 | devlink_sb, | |
1465 | tc_index, | |
1466 | DEVLINK_SB_POOL_TYPE_EGRESS, | |
1467 | DEVLINK_CMD_SB_TC_POOL_BIND_NEW, | |
1468 | portid, seq, | |
1469 | NLM_F_MULTI); | |
1470 | if (err) | |
1471 | return err; | |
1472 | (*p_idx)++; | |
1473 | } | |
1474 | } | |
1475 | return 0; | |
1476 | } | |
1477 | ||
1478 | static int | |
1479 | devlink_nl_cmd_sb_tc_pool_bind_get_dumpit(struct sk_buff *msg, | |
1480 | struct netlink_callback *cb) | |
1481 | { | |
1482 | struct devlink *devlink; | |
1483 | struct devlink_sb *devlink_sb; | |
1484 | int start = cb->args[0]; | |
1485 | int idx = 0; | |
c62c2cfb | 1486 | int err = 0; |
bf797471 JP |
1487 | |
1488 | mutex_lock(&devlink_mutex); | |
bf797471 JP |
1489 | list_for_each_entry(devlink, &devlink_list, list) { |
1490 | if (!net_eq(devlink_net(devlink), sock_net(msg->sk)) || | |
be6fe1d8 | 1491 | !devlink->ops->sb_tc_pool_bind_get) |
bf797471 | 1492 | continue; |
2406e7e5 AS |
1493 | |
1494 | mutex_lock(&devlink->lock); | |
bf797471 JP |
1495 | list_for_each_entry(devlink_sb, &devlink->sb_list, list) { |
1496 | err = __sb_tc_pool_bind_get_dumpit(msg, start, &idx, | |
1497 | devlink, | |
1498 | devlink_sb, | |
1499 | NETLINK_CB(cb->skb).portid, | |
1500 | cb->nlh->nlmsg_seq); | |
2406e7e5 AS |
1501 | if (err && err != -EOPNOTSUPP) { |
1502 | mutex_unlock(&devlink->lock); | |
bf797471 | 1503 | goto out; |
2406e7e5 | 1504 | } |
bf797471 | 1505 | } |
2406e7e5 | 1506 | mutex_unlock(&devlink->lock); |
bf797471 JP |
1507 | } |
1508 | out: | |
bf797471 JP |
1509 | mutex_unlock(&devlink_mutex); |
1510 | ||
c62c2cfb JP |
1511 | if (err != -EMSGSIZE) |
1512 | return err; | |
1513 | ||
bf797471 JP |
1514 | cb->args[0] = idx; |
1515 | return msg->len; | |
1516 | } | |
1517 | ||
1518 | static int devlink_sb_tc_pool_bind_set(struct devlink_port *devlink_port, | |
1519 | unsigned int sb_index, u16 tc_index, | |
1520 | enum devlink_sb_pool_type pool_type, | |
f2ad1a52 IS |
1521 | u16 pool_index, u32 threshold, |
1522 | struct netlink_ext_ack *extack) | |
bf797471 JP |
1523 | |
1524 | { | |
1525 | const struct devlink_ops *ops = devlink_port->devlink->ops; | |
1526 | ||
be6fe1d8 | 1527 | if (ops->sb_tc_pool_bind_set) |
bf797471 JP |
1528 | return ops->sb_tc_pool_bind_set(devlink_port, sb_index, |
1529 | tc_index, pool_type, | |
f2ad1a52 | 1530 | pool_index, threshold, extack); |
bf797471 JP |
1531 | return -EOPNOTSUPP; |
1532 | } | |
1533 | ||
1534 | static int devlink_nl_cmd_sb_tc_pool_bind_set_doit(struct sk_buff *skb, | |
1535 | struct genl_info *info) | |
1536 | { | |
1537 | struct devlink_port *devlink_port = info->user_ptr[0]; | |
1538 | struct devlink_sb *devlink_sb = info->user_ptr[1]; | |
1539 | enum devlink_sb_pool_type pool_type; | |
1540 | u16 tc_index; | |
1541 | u16 pool_index; | |
1542 | u32 threshold; | |
1543 | int err; | |
1544 | ||
1545 | err = devlink_sb_pool_type_get_from_info(info, &pool_type); | |
1546 | if (err) | |
1547 | return err; | |
1548 | ||
1549 | err = devlink_sb_tc_index_get_from_info(devlink_sb, info, | |
1550 | pool_type, &tc_index); | |
1551 | if (err) | |
1552 | return err; | |
1553 | ||
1554 | err = devlink_sb_pool_index_get_from_info(devlink_sb, info, | |
1555 | &pool_index); | |
1556 | if (err) | |
1557 | return err; | |
1558 | ||
1559 | if (!info->attrs[DEVLINK_ATTR_SB_THRESHOLD]) | |
1560 | return -EINVAL; | |
1561 | ||
1562 | threshold = nla_get_u32(info->attrs[DEVLINK_ATTR_SB_THRESHOLD]); | |
1563 | return devlink_sb_tc_pool_bind_set(devlink_port, devlink_sb->index, | |
1564 | tc_index, pool_type, | |
f2ad1a52 | 1565 | pool_index, threshold, info->extack); |
bf797471 JP |
1566 | } |
1567 | ||
df38dafd JP |
1568 | static int devlink_nl_cmd_sb_occ_snapshot_doit(struct sk_buff *skb, |
1569 | struct genl_info *info) | |
1570 | { | |
1571 | struct devlink *devlink = info->user_ptr[0]; | |
1572 | struct devlink_sb *devlink_sb = info->user_ptr[1]; | |
1573 | const struct devlink_ops *ops = devlink->ops; | |
1574 | ||
be6fe1d8 | 1575 | if (ops->sb_occ_snapshot) |
df38dafd JP |
1576 | return ops->sb_occ_snapshot(devlink, devlink_sb->index); |
1577 | return -EOPNOTSUPP; | |
1578 | } | |
1579 | ||
1580 | static int devlink_nl_cmd_sb_occ_max_clear_doit(struct sk_buff *skb, | |
1581 | struct genl_info *info) | |
1582 | { | |
1583 | struct devlink *devlink = info->user_ptr[0]; | |
1584 | struct devlink_sb *devlink_sb = info->user_ptr[1]; | |
1585 | const struct devlink_ops *ops = devlink->ops; | |
1586 | ||
be6fe1d8 | 1587 | if (ops->sb_occ_max_clear) |
df38dafd JP |
1588 | return ops->sb_occ_max_clear(devlink, devlink_sb->index); |
1589 | return -EOPNOTSUPP; | |
1590 | } | |
1591 | ||
21e3d2dd JP |
1592 | static int devlink_nl_eswitch_fill(struct sk_buff *msg, struct devlink *devlink, |
1593 | enum devlink_command cmd, u32 portid, | |
1594 | u32 seq, int flags) | |
08f4b591 | 1595 | { |
59bfde01 | 1596 | const struct devlink_ops *ops = devlink->ops; |
98fdbea5 LR |
1597 | enum devlink_eswitch_encap_mode encap_mode; |
1598 | u8 inline_mode; | |
08f4b591 | 1599 | void *hdr; |
59bfde01 RD |
1600 | int err = 0; |
1601 | u16 mode; | |
08f4b591 OG |
1602 | |
1603 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
1604 | if (!hdr) | |
1605 | return -EMSGSIZE; | |
1606 | ||
59bfde01 RD |
1607 | err = devlink_nl_put_handle(msg, devlink); |
1608 | if (err) | |
1a6aa36b | 1609 | goto nla_put_failure; |
08f4b591 | 1610 | |
4456f61c JP |
1611 | if (ops->eswitch_mode_get) { |
1612 | err = ops->eswitch_mode_get(devlink, &mode); | |
1613 | if (err) | |
1614 | goto nla_put_failure; | |
1615 | err = nla_put_u16(msg, DEVLINK_ATTR_ESWITCH_MODE, mode); | |
1616 | if (err) | |
1617 | goto nla_put_failure; | |
1618 | } | |
59bfde01 RD |
1619 | |
1620 | if (ops->eswitch_inline_mode_get) { | |
1621 | err = ops->eswitch_inline_mode_get(devlink, &inline_mode); | |
1622 | if (err) | |
1a6aa36b | 1623 | goto nla_put_failure; |
59bfde01 RD |
1624 | err = nla_put_u8(msg, DEVLINK_ATTR_ESWITCH_INLINE_MODE, |
1625 | inline_mode); | |
1626 | if (err) | |
1a6aa36b | 1627 | goto nla_put_failure; |
59bfde01 | 1628 | } |
08f4b591 | 1629 | |
f43e9b06 RD |
1630 | if (ops->eswitch_encap_mode_get) { |
1631 | err = ops->eswitch_encap_mode_get(devlink, &encap_mode); | |
1632 | if (err) | |
1633 | goto nla_put_failure; | |
1634 | err = nla_put_u8(msg, DEVLINK_ATTR_ESWITCH_ENCAP_MODE, encap_mode); | |
1635 | if (err) | |
1636 | goto nla_put_failure; | |
1637 | } | |
1638 | ||
08f4b591 OG |
1639 | genlmsg_end(msg, hdr); |
1640 | return 0; | |
1641 | ||
1a6aa36b | 1642 | nla_put_failure: |
08f4b591 | 1643 | genlmsg_cancel(msg, hdr); |
59bfde01 | 1644 | return err; |
08f4b591 OG |
1645 | } |
1646 | ||
adf200f3 JP |
1647 | static int devlink_nl_cmd_eswitch_get_doit(struct sk_buff *skb, |
1648 | struct genl_info *info) | |
08f4b591 OG |
1649 | { |
1650 | struct devlink *devlink = info->user_ptr[0]; | |
08f4b591 | 1651 | struct sk_buff *msg; |
08f4b591 OG |
1652 | int err; |
1653 | ||
08f4b591 OG |
1654 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
1655 | if (!msg) | |
1656 | return -ENOMEM; | |
1657 | ||
21e3d2dd JP |
1658 | err = devlink_nl_eswitch_fill(msg, devlink, DEVLINK_CMD_ESWITCH_GET, |
1659 | info->snd_portid, info->snd_seq, 0); | |
08f4b591 OG |
1660 | |
1661 | if (err) { | |
1662 | nlmsg_free(msg); | |
1663 | return err; | |
1664 | } | |
1665 | ||
1666 | return genlmsg_reply(msg, info); | |
1667 | } | |
1668 | ||
adf200f3 JP |
1669 | static int devlink_nl_cmd_eswitch_set_doit(struct sk_buff *skb, |
1670 | struct genl_info *info) | |
08f4b591 OG |
1671 | { |
1672 | struct devlink *devlink = info->user_ptr[0]; | |
1673 | const struct devlink_ops *ops = devlink->ops; | |
98fdbea5 LR |
1674 | enum devlink_eswitch_encap_mode encap_mode; |
1675 | u8 inline_mode; | |
59bfde01 | 1676 | int err = 0; |
f43e9b06 | 1677 | u16 mode; |
08f4b591 | 1678 | |
59bfde01 RD |
1679 | if (info->attrs[DEVLINK_ATTR_ESWITCH_MODE]) { |
1680 | if (!ops->eswitch_mode_set) | |
1681 | return -EOPNOTSUPP; | |
1682 | mode = nla_get_u16(info->attrs[DEVLINK_ATTR_ESWITCH_MODE]); | |
db7ff19e | 1683 | err = ops->eswitch_mode_set(devlink, mode, info->extack); |
59bfde01 RD |
1684 | if (err) |
1685 | return err; | |
1686 | } | |
08f4b591 | 1687 | |
59bfde01 RD |
1688 | if (info->attrs[DEVLINK_ATTR_ESWITCH_INLINE_MODE]) { |
1689 | if (!ops->eswitch_inline_mode_set) | |
1690 | return -EOPNOTSUPP; | |
1691 | inline_mode = nla_get_u8( | |
1692 | info->attrs[DEVLINK_ATTR_ESWITCH_INLINE_MODE]); | |
db7ff19e EB |
1693 | err = ops->eswitch_inline_mode_set(devlink, inline_mode, |
1694 | info->extack); | |
59bfde01 RD |
1695 | if (err) |
1696 | return err; | |
1697 | } | |
f43e9b06 RD |
1698 | |
1699 | if (info->attrs[DEVLINK_ATTR_ESWITCH_ENCAP_MODE]) { | |
1700 | if (!ops->eswitch_encap_mode_set) | |
1701 | return -EOPNOTSUPP; | |
1702 | encap_mode = nla_get_u8(info->attrs[DEVLINK_ATTR_ESWITCH_ENCAP_MODE]); | |
db7ff19e EB |
1703 | err = ops->eswitch_encap_mode_set(devlink, encap_mode, |
1704 | info->extack); | |
f43e9b06 RD |
1705 | if (err) |
1706 | return err; | |
1707 | } | |
1708 | ||
1555d204 AS |
1709 | return 0; |
1710 | } | |
1711 | ||
1712 | int devlink_dpipe_match_put(struct sk_buff *skb, | |
1713 | struct devlink_dpipe_match *match) | |
1714 | { | |
1715 | struct devlink_dpipe_header *header = match->header; | |
1716 | struct devlink_dpipe_field *field = &header->fields[match->field_id]; | |
1717 | struct nlattr *match_attr; | |
1718 | ||
ae0be8de | 1719 | match_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_MATCH); |
1555d204 AS |
1720 | if (!match_attr) |
1721 | return -EMSGSIZE; | |
1722 | ||
1723 | if (nla_put_u32(skb, DEVLINK_ATTR_DPIPE_MATCH_TYPE, match->type) || | |
1724 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_INDEX, match->header_index) || | |
1725 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_ID, header->id) || | |
1726 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_ID, field->id) || | |
1727 | nla_put_u8(skb, DEVLINK_ATTR_DPIPE_HEADER_GLOBAL, header->global)) | |
1728 | goto nla_put_failure; | |
1729 | ||
1730 | nla_nest_end(skb, match_attr); | |
1731 | return 0; | |
1732 | ||
1733 | nla_put_failure: | |
1734 | nla_nest_cancel(skb, match_attr); | |
1735 | return -EMSGSIZE; | |
1736 | } | |
1737 | EXPORT_SYMBOL_GPL(devlink_dpipe_match_put); | |
1738 | ||
1739 | static int devlink_dpipe_matches_put(struct devlink_dpipe_table *table, | |
1740 | struct sk_buff *skb) | |
1741 | { | |
1742 | struct nlattr *matches_attr; | |
1743 | ||
ae0be8de MK |
1744 | matches_attr = nla_nest_start_noflag(skb, |
1745 | DEVLINK_ATTR_DPIPE_TABLE_MATCHES); | |
1555d204 AS |
1746 | if (!matches_attr) |
1747 | return -EMSGSIZE; | |
1748 | ||
1749 | if (table->table_ops->matches_dump(table->priv, skb)) | |
1750 | goto nla_put_failure; | |
1751 | ||
1752 | nla_nest_end(skb, matches_attr); | |
1753 | return 0; | |
1754 | ||
1755 | nla_put_failure: | |
1756 | nla_nest_cancel(skb, matches_attr); | |
1757 | return -EMSGSIZE; | |
1758 | } | |
1759 | ||
1760 | int devlink_dpipe_action_put(struct sk_buff *skb, | |
1761 | struct devlink_dpipe_action *action) | |
1762 | { | |
1763 | struct devlink_dpipe_header *header = action->header; | |
1764 | struct devlink_dpipe_field *field = &header->fields[action->field_id]; | |
1765 | struct nlattr *action_attr; | |
1766 | ||
ae0be8de | 1767 | action_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_ACTION); |
1555d204 AS |
1768 | if (!action_attr) |
1769 | return -EMSGSIZE; | |
1770 | ||
1771 | if (nla_put_u32(skb, DEVLINK_ATTR_DPIPE_ACTION_TYPE, action->type) || | |
1772 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_INDEX, action->header_index) || | |
1773 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_ID, header->id) || | |
1774 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_ID, field->id) || | |
1775 | nla_put_u8(skb, DEVLINK_ATTR_DPIPE_HEADER_GLOBAL, header->global)) | |
1776 | goto nla_put_failure; | |
1777 | ||
1778 | nla_nest_end(skb, action_attr); | |
1779 | return 0; | |
1780 | ||
1781 | nla_put_failure: | |
1782 | nla_nest_cancel(skb, action_attr); | |
1783 | return -EMSGSIZE; | |
1784 | } | |
1785 | EXPORT_SYMBOL_GPL(devlink_dpipe_action_put); | |
1786 | ||
1787 | static int devlink_dpipe_actions_put(struct devlink_dpipe_table *table, | |
1788 | struct sk_buff *skb) | |
1789 | { | |
1790 | struct nlattr *actions_attr; | |
1791 | ||
ae0be8de MK |
1792 | actions_attr = nla_nest_start_noflag(skb, |
1793 | DEVLINK_ATTR_DPIPE_TABLE_ACTIONS); | |
1555d204 AS |
1794 | if (!actions_attr) |
1795 | return -EMSGSIZE; | |
1796 | ||
1797 | if (table->table_ops->actions_dump(table->priv, skb)) | |
1798 | goto nla_put_failure; | |
1799 | ||
1800 | nla_nest_end(skb, actions_attr); | |
1801 | return 0; | |
1802 | ||
1803 | nla_put_failure: | |
1804 | nla_nest_cancel(skb, actions_attr); | |
1805 | return -EMSGSIZE; | |
1806 | } | |
1807 | ||
1808 | static int devlink_dpipe_table_put(struct sk_buff *skb, | |
1809 | struct devlink_dpipe_table *table) | |
1810 | { | |
1811 | struct nlattr *table_attr; | |
ffd3cdcc | 1812 | u64 table_size; |
1555d204 | 1813 | |
ffd3cdcc | 1814 | table_size = table->table_ops->size_get(table->priv); |
ae0be8de | 1815 | table_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_TABLE); |
1555d204 AS |
1816 | if (!table_attr) |
1817 | return -EMSGSIZE; | |
1818 | ||
1819 | if (nla_put_string(skb, DEVLINK_ATTR_DPIPE_TABLE_NAME, table->name) || | |
ffd3cdcc | 1820 | nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_TABLE_SIZE, table_size, |
1555d204 AS |
1821 | DEVLINK_ATTR_PAD)) |
1822 | goto nla_put_failure; | |
1823 | if (nla_put_u8(skb, DEVLINK_ATTR_DPIPE_TABLE_COUNTERS_ENABLED, | |
1824 | table->counters_enabled)) | |
1825 | goto nla_put_failure; | |
1826 | ||
56dc7cd0 | 1827 | if (table->resource_valid) { |
3d18e4f1 AS |
1828 | if (nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_TABLE_RESOURCE_ID, |
1829 | table->resource_id, DEVLINK_ATTR_PAD) || | |
1830 | nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_TABLE_RESOURCE_UNITS, | |
1831 | table->resource_units, DEVLINK_ATTR_PAD)) | |
1832 | goto nla_put_failure; | |
56dc7cd0 | 1833 | } |
1555d204 AS |
1834 | if (devlink_dpipe_matches_put(table, skb)) |
1835 | goto nla_put_failure; | |
1836 | ||
1837 | if (devlink_dpipe_actions_put(table, skb)) | |
1838 | goto nla_put_failure; | |
1839 | ||
1840 | nla_nest_end(skb, table_attr); | |
1841 | return 0; | |
1842 | ||
1843 | nla_put_failure: | |
1844 | nla_nest_cancel(skb, table_attr); | |
1845 | return -EMSGSIZE; | |
1846 | } | |
1847 | ||
1848 | static int devlink_dpipe_send_and_alloc_skb(struct sk_buff **pskb, | |
1849 | struct genl_info *info) | |
1850 | { | |
1851 | int err; | |
1852 | ||
1853 | if (*pskb) { | |
1854 | err = genlmsg_reply(*pskb, info); | |
1855 | if (err) | |
1856 | return err; | |
1857 | } | |
1858 | *pskb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
1859 | if (!*pskb) | |
1860 | return -ENOMEM; | |
1861 | return 0; | |
1862 | } | |
1863 | ||
1864 | static int devlink_dpipe_tables_fill(struct genl_info *info, | |
1865 | enum devlink_command cmd, int flags, | |
1866 | struct list_head *dpipe_tables, | |
1867 | const char *table_name) | |
1868 | { | |
1869 | struct devlink *devlink = info->user_ptr[0]; | |
1870 | struct devlink_dpipe_table *table; | |
1871 | struct nlattr *tables_attr; | |
1872 | struct sk_buff *skb = NULL; | |
1873 | struct nlmsghdr *nlh; | |
1874 | bool incomplete; | |
1875 | void *hdr; | |
1876 | int i; | |
1877 | int err; | |
1878 | ||
1879 | table = list_first_entry(dpipe_tables, | |
1880 | struct devlink_dpipe_table, list); | |
1881 | start_again: | |
1882 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); | |
1883 | if (err) | |
1884 | return err; | |
1885 | ||
1886 | hdr = genlmsg_put(skb, info->snd_portid, info->snd_seq, | |
1887 | &devlink_nl_family, NLM_F_MULTI, cmd); | |
6044bd4a HY |
1888 | if (!hdr) { |
1889 | nlmsg_free(skb); | |
1555d204 | 1890 | return -EMSGSIZE; |
6044bd4a | 1891 | } |
1555d204 AS |
1892 | |
1893 | if (devlink_nl_put_handle(skb, devlink)) | |
1894 | goto nla_put_failure; | |
ae0be8de | 1895 | tables_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_TABLES); |
1555d204 AS |
1896 | if (!tables_attr) |
1897 | goto nla_put_failure; | |
1898 | ||
1899 | i = 0; | |
1900 | incomplete = false; | |
1901 | list_for_each_entry_from(table, dpipe_tables, list) { | |
1902 | if (!table_name) { | |
1903 | err = devlink_dpipe_table_put(skb, table); | |
1904 | if (err) { | |
1905 | if (!i) | |
1906 | goto err_table_put; | |
1907 | incomplete = true; | |
1908 | break; | |
1909 | } | |
1910 | } else { | |
1911 | if (!strcmp(table->name, table_name)) { | |
1912 | err = devlink_dpipe_table_put(skb, table); | |
1913 | if (err) | |
1914 | break; | |
1915 | } | |
1916 | } | |
1917 | i++; | |
1918 | } | |
1919 | ||
1920 | nla_nest_end(skb, tables_attr); | |
1921 | genlmsg_end(skb, hdr); | |
1922 | if (incomplete) | |
1923 | goto start_again; | |
1924 | ||
1925 | send_done: | |
1926 | nlh = nlmsg_put(skb, info->snd_portid, info->snd_seq, | |
1927 | NLMSG_DONE, 0, flags | NLM_F_MULTI); | |
1928 | if (!nlh) { | |
1929 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); | |
1930 | if (err) | |
7fe4d6dc | 1931 | return err; |
1555d204 AS |
1932 | goto send_done; |
1933 | } | |
1934 | ||
1935 | return genlmsg_reply(skb, info); | |
1936 | ||
1937 | nla_put_failure: | |
1938 | err = -EMSGSIZE; | |
1939 | err_table_put: | |
1555d204 AS |
1940 | nlmsg_free(skb); |
1941 | return err; | |
1942 | } | |
1943 | ||
1944 | static int devlink_nl_cmd_dpipe_table_get(struct sk_buff *skb, | |
1945 | struct genl_info *info) | |
1946 | { | |
1947 | struct devlink *devlink = info->user_ptr[0]; | |
1948 | const char *table_name = NULL; | |
1949 | ||
1950 | if (info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME]) | |
1951 | table_name = nla_data(info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME]); | |
1952 | ||
1953 | return devlink_dpipe_tables_fill(info, DEVLINK_CMD_DPIPE_TABLE_GET, 0, | |
1954 | &devlink->dpipe_table_list, | |
1955 | table_name); | |
1956 | } | |
1957 | ||
1958 | static int devlink_dpipe_value_put(struct sk_buff *skb, | |
1959 | struct devlink_dpipe_value *value) | |
1960 | { | |
1961 | if (nla_put(skb, DEVLINK_ATTR_DPIPE_VALUE, | |
1962 | value->value_size, value->value)) | |
1963 | return -EMSGSIZE; | |
1964 | if (value->mask) | |
1965 | if (nla_put(skb, DEVLINK_ATTR_DPIPE_VALUE_MASK, | |
1966 | value->value_size, value->mask)) | |
1967 | return -EMSGSIZE; | |
1968 | if (value->mapping_valid) | |
1969 | if (nla_put_u32(skb, DEVLINK_ATTR_DPIPE_VALUE_MAPPING, | |
1970 | value->mapping_value)) | |
1971 | return -EMSGSIZE; | |
1972 | return 0; | |
1973 | } | |
1974 | ||
1975 | static int devlink_dpipe_action_value_put(struct sk_buff *skb, | |
1976 | struct devlink_dpipe_value *value) | |
1977 | { | |
1978 | if (!value->action) | |
1979 | return -EINVAL; | |
1980 | if (devlink_dpipe_action_put(skb, value->action)) | |
1981 | return -EMSGSIZE; | |
1982 | if (devlink_dpipe_value_put(skb, value)) | |
1983 | return -EMSGSIZE; | |
1984 | return 0; | |
1985 | } | |
1986 | ||
1987 | static int devlink_dpipe_action_values_put(struct sk_buff *skb, | |
1988 | struct devlink_dpipe_value *values, | |
1989 | unsigned int values_count) | |
1990 | { | |
1991 | struct nlattr *action_attr; | |
1992 | int i; | |
1993 | int err; | |
1994 | ||
1995 | for (i = 0; i < values_count; i++) { | |
ae0be8de MK |
1996 | action_attr = nla_nest_start_noflag(skb, |
1997 | DEVLINK_ATTR_DPIPE_ACTION_VALUE); | |
1555d204 AS |
1998 | if (!action_attr) |
1999 | return -EMSGSIZE; | |
2000 | err = devlink_dpipe_action_value_put(skb, &values[i]); | |
2001 | if (err) | |
2002 | goto err_action_value_put; | |
2003 | nla_nest_end(skb, action_attr); | |
2004 | } | |
2005 | return 0; | |
2006 | ||
2007 | err_action_value_put: | |
2008 | nla_nest_cancel(skb, action_attr); | |
2009 | return err; | |
2010 | } | |
2011 | ||
2012 | static int devlink_dpipe_match_value_put(struct sk_buff *skb, | |
2013 | struct devlink_dpipe_value *value) | |
2014 | { | |
2015 | if (!value->match) | |
2016 | return -EINVAL; | |
2017 | if (devlink_dpipe_match_put(skb, value->match)) | |
2018 | return -EMSGSIZE; | |
2019 | if (devlink_dpipe_value_put(skb, value)) | |
2020 | return -EMSGSIZE; | |
2021 | return 0; | |
2022 | } | |
2023 | ||
2024 | static int devlink_dpipe_match_values_put(struct sk_buff *skb, | |
2025 | struct devlink_dpipe_value *values, | |
2026 | unsigned int values_count) | |
2027 | { | |
2028 | struct nlattr *match_attr; | |
2029 | int i; | |
2030 | int err; | |
2031 | ||
2032 | for (i = 0; i < values_count; i++) { | |
ae0be8de MK |
2033 | match_attr = nla_nest_start_noflag(skb, |
2034 | DEVLINK_ATTR_DPIPE_MATCH_VALUE); | |
1555d204 AS |
2035 | if (!match_attr) |
2036 | return -EMSGSIZE; | |
2037 | err = devlink_dpipe_match_value_put(skb, &values[i]); | |
2038 | if (err) | |
2039 | goto err_match_value_put; | |
2040 | nla_nest_end(skb, match_attr); | |
2041 | } | |
2042 | return 0; | |
2043 | ||
2044 | err_match_value_put: | |
2045 | nla_nest_cancel(skb, match_attr); | |
2046 | return err; | |
2047 | } | |
2048 | ||
2049 | static int devlink_dpipe_entry_put(struct sk_buff *skb, | |
2050 | struct devlink_dpipe_entry *entry) | |
2051 | { | |
2052 | struct nlattr *entry_attr, *matches_attr, *actions_attr; | |
2053 | int err; | |
2054 | ||
ae0be8de | 2055 | entry_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_ENTRY); |
1555d204 AS |
2056 | if (!entry_attr) |
2057 | return -EMSGSIZE; | |
2058 | ||
2059 | if (nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_ENTRY_INDEX, entry->index, | |
2060 | DEVLINK_ATTR_PAD)) | |
2061 | goto nla_put_failure; | |
2062 | if (entry->counter_valid) | |
2063 | if (nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_ENTRY_COUNTER, | |
2064 | entry->counter, DEVLINK_ATTR_PAD)) | |
2065 | goto nla_put_failure; | |
2066 | ||
ae0be8de MK |
2067 | matches_attr = nla_nest_start_noflag(skb, |
2068 | DEVLINK_ATTR_DPIPE_ENTRY_MATCH_VALUES); | |
1555d204 AS |
2069 | if (!matches_attr) |
2070 | goto nla_put_failure; | |
2071 | ||
2072 | err = devlink_dpipe_match_values_put(skb, entry->match_values, | |
2073 | entry->match_values_count); | |
2074 | if (err) { | |
2075 | nla_nest_cancel(skb, matches_attr); | |
2076 | goto err_match_values_put; | |
2077 | } | |
2078 | nla_nest_end(skb, matches_attr); | |
2079 | ||
ae0be8de MK |
2080 | actions_attr = nla_nest_start_noflag(skb, |
2081 | DEVLINK_ATTR_DPIPE_ENTRY_ACTION_VALUES); | |
1555d204 AS |
2082 | if (!actions_attr) |
2083 | goto nla_put_failure; | |
2084 | ||
2085 | err = devlink_dpipe_action_values_put(skb, entry->action_values, | |
2086 | entry->action_values_count); | |
2087 | if (err) { | |
2088 | nla_nest_cancel(skb, actions_attr); | |
2089 | goto err_action_values_put; | |
2090 | } | |
2091 | nla_nest_end(skb, actions_attr); | |
59bfde01 | 2092 | |
1555d204 | 2093 | nla_nest_end(skb, entry_attr); |
59bfde01 | 2094 | return 0; |
1555d204 AS |
2095 | |
2096 | nla_put_failure: | |
2097 | err = -EMSGSIZE; | |
2098 | err_match_values_put: | |
2099 | err_action_values_put: | |
2100 | nla_nest_cancel(skb, entry_attr); | |
2101 | return err; | |
2102 | } | |
2103 | ||
2104 | static struct devlink_dpipe_table * | |
2105 | devlink_dpipe_table_find(struct list_head *dpipe_tables, | |
2eb51c75 | 2106 | const char *table_name, struct devlink *devlink) |
1555d204 AS |
2107 | { |
2108 | struct devlink_dpipe_table *table; | |
2eb51c75 MB |
2109 | list_for_each_entry_rcu(table, dpipe_tables, list, |
2110 | lockdep_is_held(&devlink->lock)) { | |
1555d204 AS |
2111 | if (!strcmp(table->name, table_name)) |
2112 | return table; | |
2113 | } | |
2114 | return NULL; | |
2115 | } | |
2116 | ||
2117 | int devlink_dpipe_entry_ctx_prepare(struct devlink_dpipe_dump_ctx *dump_ctx) | |
2118 | { | |
2119 | struct devlink *devlink; | |
2120 | int err; | |
2121 | ||
2122 | err = devlink_dpipe_send_and_alloc_skb(&dump_ctx->skb, | |
2123 | dump_ctx->info); | |
2124 | if (err) | |
2125 | return err; | |
2126 | ||
2127 | dump_ctx->hdr = genlmsg_put(dump_ctx->skb, | |
2128 | dump_ctx->info->snd_portid, | |
2129 | dump_ctx->info->snd_seq, | |
2130 | &devlink_nl_family, NLM_F_MULTI, | |
2131 | dump_ctx->cmd); | |
2132 | if (!dump_ctx->hdr) | |
2133 | goto nla_put_failure; | |
2134 | ||
2135 | devlink = dump_ctx->info->user_ptr[0]; | |
2136 | if (devlink_nl_put_handle(dump_ctx->skb, devlink)) | |
2137 | goto nla_put_failure; | |
ae0be8de MK |
2138 | dump_ctx->nest = nla_nest_start_noflag(dump_ctx->skb, |
2139 | DEVLINK_ATTR_DPIPE_ENTRIES); | |
1555d204 AS |
2140 | if (!dump_ctx->nest) |
2141 | goto nla_put_failure; | |
2142 | return 0; | |
2143 | ||
2144 | nla_put_failure: | |
1555d204 AS |
2145 | nlmsg_free(dump_ctx->skb); |
2146 | return -EMSGSIZE; | |
2147 | } | |
2148 | EXPORT_SYMBOL_GPL(devlink_dpipe_entry_ctx_prepare); | |
2149 | ||
2150 | int devlink_dpipe_entry_ctx_append(struct devlink_dpipe_dump_ctx *dump_ctx, | |
2151 | struct devlink_dpipe_entry *entry) | |
2152 | { | |
2153 | return devlink_dpipe_entry_put(dump_ctx->skb, entry); | |
2154 | } | |
2155 | EXPORT_SYMBOL_GPL(devlink_dpipe_entry_ctx_append); | |
2156 | ||
2157 | int devlink_dpipe_entry_ctx_close(struct devlink_dpipe_dump_ctx *dump_ctx) | |
2158 | { | |
2159 | nla_nest_end(dump_ctx->skb, dump_ctx->nest); | |
2160 | genlmsg_end(dump_ctx->skb, dump_ctx->hdr); | |
2161 | return 0; | |
2162 | } | |
2163 | EXPORT_SYMBOL_GPL(devlink_dpipe_entry_ctx_close); | |
2164 | ||
35807324 AS |
2165 | void devlink_dpipe_entry_clear(struct devlink_dpipe_entry *entry) |
2166 | ||
2167 | { | |
2168 | unsigned int value_count, value_index; | |
2169 | struct devlink_dpipe_value *value; | |
2170 | ||
2171 | value = entry->action_values; | |
2172 | value_count = entry->action_values_count; | |
2173 | for (value_index = 0; value_index < value_count; value_index++) { | |
2174 | kfree(value[value_index].value); | |
2175 | kfree(value[value_index].mask); | |
2176 | } | |
2177 | ||
2178 | value = entry->match_values; | |
2179 | value_count = entry->match_values_count; | |
2180 | for (value_index = 0; value_index < value_count; value_index++) { | |
2181 | kfree(value[value_index].value); | |
2182 | kfree(value[value_index].mask); | |
2183 | } | |
2184 | } | |
2185 | EXPORT_SYMBOL(devlink_dpipe_entry_clear); | |
2186 | ||
1555d204 AS |
2187 | static int devlink_dpipe_entries_fill(struct genl_info *info, |
2188 | enum devlink_command cmd, int flags, | |
2189 | struct devlink_dpipe_table *table) | |
2190 | { | |
2191 | struct devlink_dpipe_dump_ctx dump_ctx; | |
2192 | struct nlmsghdr *nlh; | |
2193 | int err; | |
2194 | ||
2195 | dump_ctx.skb = NULL; | |
2196 | dump_ctx.cmd = cmd; | |
2197 | dump_ctx.info = info; | |
2198 | ||
2199 | err = table->table_ops->entries_dump(table->priv, | |
2200 | table->counters_enabled, | |
2201 | &dump_ctx); | |
2202 | if (err) | |
7fe4d6dc | 2203 | return err; |
1555d204 AS |
2204 | |
2205 | send_done: | |
2206 | nlh = nlmsg_put(dump_ctx.skb, info->snd_portid, info->snd_seq, | |
2207 | NLMSG_DONE, 0, flags | NLM_F_MULTI); | |
2208 | if (!nlh) { | |
2209 | err = devlink_dpipe_send_and_alloc_skb(&dump_ctx.skb, info); | |
2210 | if (err) | |
7fe4d6dc | 2211 | return err; |
1555d204 AS |
2212 | goto send_done; |
2213 | } | |
2214 | return genlmsg_reply(dump_ctx.skb, info); | |
1555d204 AS |
2215 | } |
2216 | ||
2217 | static int devlink_nl_cmd_dpipe_entries_get(struct sk_buff *skb, | |
2218 | struct genl_info *info) | |
2219 | { | |
2220 | struct devlink *devlink = info->user_ptr[0]; | |
2221 | struct devlink_dpipe_table *table; | |
2222 | const char *table_name; | |
2223 | ||
2224 | if (!info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME]) | |
2225 | return -EINVAL; | |
2226 | ||
2227 | table_name = nla_data(info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME]); | |
2228 | table = devlink_dpipe_table_find(&devlink->dpipe_table_list, | |
2eb51c75 | 2229 | table_name, devlink); |
1555d204 AS |
2230 | if (!table) |
2231 | return -EINVAL; | |
2232 | ||
2233 | if (!table->table_ops->entries_dump) | |
2234 | return -EINVAL; | |
2235 | ||
2236 | return devlink_dpipe_entries_fill(info, DEVLINK_CMD_DPIPE_ENTRIES_GET, | |
2237 | 0, table); | |
2238 | } | |
2239 | ||
2240 | static int devlink_dpipe_fields_put(struct sk_buff *skb, | |
2241 | const struct devlink_dpipe_header *header) | |
2242 | { | |
2243 | struct devlink_dpipe_field *field; | |
2244 | struct nlattr *field_attr; | |
2245 | int i; | |
2246 | ||
2247 | for (i = 0; i < header->fields_count; i++) { | |
2248 | field = &header->fields[i]; | |
ae0be8de MK |
2249 | field_attr = nla_nest_start_noflag(skb, |
2250 | DEVLINK_ATTR_DPIPE_FIELD); | |
1555d204 AS |
2251 | if (!field_attr) |
2252 | return -EMSGSIZE; | |
2253 | if (nla_put_string(skb, DEVLINK_ATTR_DPIPE_FIELD_NAME, field->name) || | |
2254 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_ID, field->id) || | |
2255 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_BITWIDTH, field->bitwidth) || | |
2256 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_MAPPING_TYPE, field->mapping_type)) | |
2257 | goto nla_put_failure; | |
2258 | nla_nest_end(skb, field_attr); | |
2259 | } | |
2260 | return 0; | |
2261 | ||
2262 | nla_put_failure: | |
2263 | nla_nest_cancel(skb, field_attr); | |
2264 | return -EMSGSIZE; | |
2265 | } | |
2266 | ||
2267 | static int devlink_dpipe_header_put(struct sk_buff *skb, | |
2268 | struct devlink_dpipe_header *header) | |
2269 | { | |
2270 | struct nlattr *fields_attr, *header_attr; | |
2271 | int err; | |
2272 | ||
ae0be8de | 2273 | header_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_HEADER); |
cb6bf9cf | 2274 | if (!header_attr) |
1555d204 AS |
2275 | return -EMSGSIZE; |
2276 | ||
2277 | if (nla_put_string(skb, DEVLINK_ATTR_DPIPE_HEADER_NAME, header->name) || | |
2278 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_ID, header->id) || | |
2279 | nla_put_u8(skb, DEVLINK_ATTR_DPIPE_HEADER_GLOBAL, header->global)) | |
2280 | goto nla_put_failure; | |
2281 | ||
ae0be8de MK |
2282 | fields_attr = nla_nest_start_noflag(skb, |
2283 | DEVLINK_ATTR_DPIPE_HEADER_FIELDS); | |
1555d204 AS |
2284 | if (!fields_attr) |
2285 | goto nla_put_failure; | |
2286 | ||
2287 | err = devlink_dpipe_fields_put(skb, header); | |
2288 | if (err) { | |
2289 | nla_nest_cancel(skb, fields_attr); | |
2290 | goto nla_put_failure; | |
2291 | } | |
2292 | nla_nest_end(skb, fields_attr); | |
2293 | nla_nest_end(skb, header_attr); | |
2294 | return 0; | |
2295 | ||
2296 | nla_put_failure: | |
2297 | err = -EMSGSIZE; | |
2298 | nla_nest_cancel(skb, header_attr); | |
2299 | return err; | |
2300 | } | |
2301 | ||
2302 | static int devlink_dpipe_headers_fill(struct genl_info *info, | |
2303 | enum devlink_command cmd, int flags, | |
2304 | struct devlink_dpipe_headers * | |
2305 | dpipe_headers) | |
2306 | { | |
2307 | struct devlink *devlink = info->user_ptr[0]; | |
2308 | struct nlattr *headers_attr; | |
2309 | struct sk_buff *skb = NULL; | |
2310 | struct nlmsghdr *nlh; | |
2311 | void *hdr; | |
2312 | int i, j; | |
2313 | int err; | |
2314 | ||
2315 | i = 0; | |
2316 | start_again: | |
2317 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); | |
2318 | if (err) | |
2319 | return err; | |
2320 | ||
2321 | hdr = genlmsg_put(skb, info->snd_portid, info->snd_seq, | |
2322 | &devlink_nl_family, NLM_F_MULTI, cmd); | |
6044bd4a HY |
2323 | if (!hdr) { |
2324 | nlmsg_free(skb); | |
1555d204 | 2325 | return -EMSGSIZE; |
6044bd4a | 2326 | } |
1555d204 AS |
2327 | |
2328 | if (devlink_nl_put_handle(skb, devlink)) | |
2329 | goto nla_put_failure; | |
ae0be8de | 2330 | headers_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_HEADERS); |
1555d204 AS |
2331 | if (!headers_attr) |
2332 | goto nla_put_failure; | |
2333 | ||
2334 | j = 0; | |
2335 | for (; i < dpipe_headers->headers_count; i++) { | |
2336 | err = devlink_dpipe_header_put(skb, dpipe_headers->headers[i]); | |
2337 | if (err) { | |
2338 | if (!j) | |
2339 | goto err_table_put; | |
2340 | break; | |
2341 | } | |
2342 | j++; | |
2343 | } | |
2344 | nla_nest_end(skb, headers_attr); | |
2345 | genlmsg_end(skb, hdr); | |
2346 | if (i != dpipe_headers->headers_count) | |
2347 | goto start_again; | |
2348 | ||
2349 | send_done: | |
2350 | nlh = nlmsg_put(skb, info->snd_portid, info->snd_seq, | |
2351 | NLMSG_DONE, 0, flags | NLM_F_MULTI); | |
2352 | if (!nlh) { | |
2353 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); | |
2354 | if (err) | |
7fe4d6dc | 2355 | return err; |
1555d204 AS |
2356 | goto send_done; |
2357 | } | |
2358 | return genlmsg_reply(skb, info); | |
2359 | ||
2360 | nla_put_failure: | |
2361 | err = -EMSGSIZE; | |
2362 | err_table_put: | |
1555d204 AS |
2363 | nlmsg_free(skb); |
2364 | return err; | |
2365 | } | |
2366 | ||
2367 | static int devlink_nl_cmd_dpipe_headers_get(struct sk_buff *skb, | |
2368 | struct genl_info *info) | |
2369 | { | |
2370 | struct devlink *devlink = info->user_ptr[0]; | |
2371 | ||
2372 | if (!devlink->dpipe_headers) | |
2373 | return -EOPNOTSUPP; | |
2374 | return devlink_dpipe_headers_fill(info, DEVLINK_CMD_DPIPE_HEADERS_GET, | |
2375 | 0, devlink->dpipe_headers); | |
2376 | } | |
2377 | ||
2378 | static int devlink_dpipe_table_counters_set(struct devlink *devlink, | |
2379 | const char *table_name, | |
2380 | bool enable) | |
2381 | { | |
2382 | struct devlink_dpipe_table *table; | |
2383 | ||
2384 | table = devlink_dpipe_table_find(&devlink->dpipe_table_list, | |
2eb51c75 | 2385 | table_name, devlink); |
1555d204 AS |
2386 | if (!table) |
2387 | return -EINVAL; | |
2388 | ||
2389 | if (table->counter_control_extern) | |
2390 | return -EOPNOTSUPP; | |
2391 | ||
2392 | if (!(table->counters_enabled ^ enable)) | |
2393 | return 0; | |
2394 | ||
2395 | table->counters_enabled = enable; | |
2396 | if (table->table_ops->counters_set_update) | |
2397 | table->table_ops->counters_set_update(table->priv, enable); | |
2398 | return 0; | |
2399 | } | |
2400 | ||
2401 | static int devlink_nl_cmd_dpipe_table_counters_set(struct sk_buff *skb, | |
2402 | struct genl_info *info) | |
2403 | { | |
2404 | struct devlink *devlink = info->user_ptr[0]; | |
2405 | const char *table_name; | |
2406 | bool counters_enable; | |
2407 | ||
2408 | if (!info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME] || | |
2409 | !info->attrs[DEVLINK_ATTR_DPIPE_TABLE_COUNTERS_ENABLED]) | |
2410 | return -EINVAL; | |
2411 | ||
2412 | table_name = nla_data(info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME]); | |
2413 | counters_enable = !!nla_get_u8(info->attrs[DEVLINK_ATTR_DPIPE_TABLE_COUNTERS_ENABLED]); | |
2414 | ||
2415 | return devlink_dpipe_table_counters_set(devlink, table_name, | |
2416 | counters_enable); | |
08f4b591 OG |
2417 | } |
2418 | ||
43dd7512 | 2419 | static struct devlink_resource * |
d9f9b9a4 AS |
2420 | devlink_resource_find(struct devlink *devlink, |
2421 | struct devlink_resource *resource, u64 resource_id) | |
2422 | { | |
2423 | struct list_head *resource_list; | |
2424 | ||
2425 | if (resource) | |
2426 | resource_list = &resource->resource_list; | |
2427 | else | |
2428 | resource_list = &devlink->resource_list; | |
2429 | ||
2430 | list_for_each_entry(resource, resource_list, list) { | |
2431 | struct devlink_resource *child_resource; | |
2432 | ||
2433 | if (resource->id == resource_id) | |
2434 | return resource; | |
2435 | ||
2436 | child_resource = devlink_resource_find(devlink, resource, | |
2437 | resource_id); | |
2438 | if (child_resource) | |
2439 | return child_resource; | |
2440 | } | |
2441 | return NULL; | |
2442 | } | |
2443 | ||
43dd7512 WY |
2444 | static void |
2445 | devlink_resource_validate_children(struct devlink_resource *resource) | |
d9f9b9a4 AS |
2446 | { |
2447 | struct devlink_resource *child_resource; | |
2448 | bool size_valid = true; | |
2449 | u64 parts_size = 0; | |
2450 | ||
2451 | if (list_empty(&resource->resource_list)) | |
2452 | goto out; | |
2453 | ||
2454 | list_for_each_entry(child_resource, &resource->resource_list, list) | |
2455 | parts_size += child_resource->size_new; | |
2456 | ||
b9d17175 | 2457 | if (parts_size > resource->size_new) |
d9f9b9a4 AS |
2458 | size_valid = false; |
2459 | out: | |
2460 | resource->size_valid = size_valid; | |
2461 | } | |
2462 | ||
cc944ead AS |
2463 | static int |
2464 | devlink_resource_validate_size(struct devlink_resource *resource, u64 size, | |
2465 | struct netlink_ext_ack *extack) | |
2466 | { | |
2467 | u64 reminder; | |
2468 | int err = 0; | |
2469 | ||
0f3e9c97 | 2470 | if (size > resource->size_params.size_max) { |
cc944ead AS |
2471 | NL_SET_ERR_MSG_MOD(extack, "Size larger than maximum"); |
2472 | err = -EINVAL; | |
2473 | } | |
2474 | ||
0f3e9c97 | 2475 | if (size < resource->size_params.size_min) { |
cc944ead AS |
2476 | NL_SET_ERR_MSG_MOD(extack, "Size smaller than minimum"); |
2477 | err = -EINVAL; | |
2478 | } | |
2479 | ||
0f3e9c97 | 2480 | div64_u64_rem(size, resource->size_params.size_granularity, &reminder); |
cc944ead AS |
2481 | if (reminder) { |
2482 | NL_SET_ERR_MSG_MOD(extack, "Wrong granularity"); | |
2483 | err = -EINVAL; | |
2484 | } | |
2485 | ||
2486 | return err; | |
2487 | } | |
2488 | ||
d9f9b9a4 AS |
2489 | static int devlink_nl_cmd_resource_set(struct sk_buff *skb, |
2490 | struct genl_info *info) | |
2491 | { | |
2492 | struct devlink *devlink = info->user_ptr[0]; | |
2493 | struct devlink_resource *resource; | |
2494 | u64 resource_id; | |
2495 | u64 size; | |
2496 | int err; | |
2497 | ||
2498 | if (!info->attrs[DEVLINK_ATTR_RESOURCE_ID] || | |
2499 | !info->attrs[DEVLINK_ATTR_RESOURCE_SIZE]) | |
2500 | return -EINVAL; | |
2501 | resource_id = nla_get_u64(info->attrs[DEVLINK_ATTR_RESOURCE_ID]); | |
2502 | ||
2503 | resource = devlink_resource_find(devlink, NULL, resource_id); | |
2504 | if (!resource) | |
2505 | return -EINVAL; | |
2506 | ||
d9f9b9a4 | 2507 | size = nla_get_u64(info->attrs[DEVLINK_ATTR_RESOURCE_SIZE]); |
cc944ead | 2508 | err = devlink_resource_validate_size(resource, size, info->extack); |
d9f9b9a4 AS |
2509 | if (err) |
2510 | return err; | |
2511 | ||
2512 | resource->size_new = size; | |
2513 | devlink_resource_validate_children(resource); | |
2514 | if (resource->parent) | |
2515 | devlink_resource_validate_children(resource->parent); | |
2516 | return 0; | |
2517 | } | |
2518 | ||
3d18e4f1 | 2519 | static int |
d9f9b9a4 AS |
2520 | devlink_resource_size_params_put(struct devlink_resource *resource, |
2521 | struct sk_buff *skb) | |
2522 | { | |
2523 | struct devlink_resource_size_params *size_params; | |
2524 | ||
77d27096 | 2525 | size_params = &resource->size_params; |
3d18e4f1 AS |
2526 | if (nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE_GRAN, |
2527 | size_params->size_granularity, DEVLINK_ATTR_PAD) || | |
2528 | nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE_MAX, | |
2529 | size_params->size_max, DEVLINK_ATTR_PAD) || | |
2530 | nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE_MIN, | |
2531 | size_params->size_min, DEVLINK_ATTR_PAD) || | |
2532 | nla_put_u8(skb, DEVLINK_ATTR_RESOURCE_UNIT, size_params->unit)) | |
2533 | return -EMSGSIZE; | |
2534 | return 0; | |
d9f9b9a4 AS |
2535 | } |
2536 | ||
fc56be47 JP |
2537 | static int devlink_resource_occ_put(struct devlink_resource *resource, |
2538 | struct sk_buff *skb) | |
2539 | { | |
2540 | if (!resource->occ_get) | |
2541 | return 0; | |
2542 | return nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_OCC, | |
2543 | resource->occ_get(resource->occ_get_priv), | |
2544 | DEVLINK_ATTR_PAD); | |
2545 | } | |
2546 | ||
d9f9b9a4 AS |
2547 | static int devlink_resource_put(struct devlink *devlink, struct sk_buff *skb, |
2548 | struct devlink_resource *resource) | |
2549 | { | |
2550 | struct devlink_resource *child_resource; | |
2551 | struct nlattr *child_resource_attr; | |
2552 | struct nlattr *resource_attr; | |
2553 | ||
ae0be8de | 2554 | resource_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_RESOURCE); |
d9f9b9a4 AS |
2555 | if (!resource_attr) |
2556 | return -EMSGSIZE; | |
2557 | ||
2558 | if (nla_put_string(skb, DEVLINK_ATTR_RESOURCE_NAME, resource->name) || | |
2559 | nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE, resource->size, | |
2560 | DEVLINK_ATTR_PAD) || | |
2561 | nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_ID, resource->id, | |
2562 | DEVLINK_ATTR_PAD)) | |
2563 | goto nla_put_failure; | |
2564 | if (resource->size != resource->size_new) | |
2565 | nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE_NEW, | |
2566 | resource->size_new, DEVLINK_ATTR_PAD); | |
fc56be47 JP |
2567 | if (devlink_resource_occ_put(resource, skb)) |
2568 | goto nla_put_failure; | |
3d18e4f1 AS |
2569 | if (devlink_resource_size_params_put(resource, skb)) |
2570 | goto nla_put_failure; | |
d9f9b9a4 AS |
2571 | if (list_empty(&resource->resource_list)) |
2572 | goto out; | |
2573 | ||
2574 | if (nla_put_u8(skb, DEVLINK_ATTR_RESOURCE_SIZE_VALID, | |
2575 | resource->size_valid)) | |
2576 | goto nla_put_failure; | |
2577 | ||
ae0be8de MK |
2578 | child_resource_attr = nla_nest_start_noflag(skb, |
2579 | DEVLINK_ATTR_RESOURCE_LIST); | |
d9f9b9a4 AS |
2580 | if (!child_resource_attr) |
2581 | goto nla_put_failure; | |
2582 | ||
2583 | list_for_each_entry(child_resource, &resource->resource_list, list) { | |
2584 | if (devlink_resource_put(devlink, skb, child_resource)) | |
2585 | goto resource_put_failure; | |
2586 | } | |
2587 | ||
2588 | nla_nest_end(skb, child_resource_attr); | |
2589 | out: | |
2590 | nla_nest_end(skb, resource_attr); | |
2591 | return 0; | |
2592 | ||
2593 | resource_put_failure: | |
2594 | nla_nest_cancel(skb, child_resource_attr); | |
2595 | nla_put_failure: | |
2596 | nla_nest_cancel(skb, resource_attr); | |
2597 | return -EMSGSIZE; | |
2598 | } | |
2599 | ||
2600 | static int devlink_resource_fill(struct genl_info *info, | |
2601 | enum devlink_command cmd, int flags) | |
2602 | { | |
2603 | struct devlink *devlink = info->user_ptr[0]; | |
2604 | struct devlink_resource *resource; | |
2605 | struct nlattr *resources_attr; | |
2606 | struct sk_buff *skb = NULL; | |
2607 | struct nlmsghdr *nlh; | |
2608 | bool incomplete; | |
2609 | void *hdr; | |
2610 | int i; | |
2611 | int err; | |
2612 | ||
2613 | resource = list_first_entry(&devlink->resource_list, | |
2614 | struct devlink_resource, list); | |
2615 | start_again: | |
2616 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); | |
2617 | if (err) | |
2618 | return err; | |
2619 | ||
2620 | hdr = genlmsg_put(skb, info->snd_portid, info->snd_seq, | |
2621 | &devlink_nl_family, NLM_F_MULTI, cmd); | |
2622 | if (!hdr) { | |
2623 | nlmsg_free(skb); | |
2624 | return -EMSGSIZE; | |
2625 | } | |
2626 | ||
2627 | if (devlink_nl_put_handle(skb, devlink)) | |
2628 | goto nla_put_failure; | |
2629 | ||
ae0be8de MK |
2630 | resources_attr = nla_nest_start_noflag(skb, |
2631 | DEVLINK_ATTR_RESOURCE_LIST); | |
d9f9b9a4 AS |
2632 | if (!resources_attr) |
2633 | goto nla_put_failure; | |
2634 | ||
2635 | incomplete = false; | |
2636 | i = 0; | |
2637 | list_for_each_entry_from(resource, &devlink->resource_list, list) { | |
2638 | err = devlink_resource_put(devlink, skb, resource); | |
2639 | if (err) { | |
2640 | if (!i) | |
2641 | goto err_resource_put; | |
2642 | incomplete = true; | |
2643 | break; | |
2644 | } | |
2645 | i++; | |
2646 | } | |
2647 | nla_nest_end(skb, resources_attr); | |
2648 | genlmsg_end(skb, hdr); | |
2649 | if (incomplete) | |
2650 | goto start_again; | |
2651 | send_done: | |
2652 | nlh = nlmsg_put(skb, info->snd_portid, info->snd_seq, | |
2653 | NLMSG_DONE, 0, flags | NLM_F_MULTI); | |
2654 | if (!nlh) { | |
2655 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); | |
2656 | if (err) | |
83fe9a96 | 2657 | return err; |
d9f9b9a4 AS |
2658 | goto send_done; |
2659 | } | |
2660 | return genlmsg_reply(skb, info); | |
2661 | ||
2662 | nla_put_failure: | |
2663 | err = -EMSGSIZE; | |
2664 | err_resource_put: | |
d9f9b9a4 AS |
2665 | nlmsg_free(skb); |
2666 | return err; | |
2667 | } | |
2668 | ||
2669 | static int devlink_nl_cmd_resource_dump(struct sk_buff *skb, | |
2670 | struct genl_info *info) | |
2671 | { | |
2672 | struct devlink *devlink = info->user_ptr[0]; | |
2673 | ||
2674 | if (list_empty(&devlink->resource_list)) | |
2675 | return -EOPNOTSUPP; | |
2676 | ||
2677 | return devlink_resource_fill(info, DEVLINK_CMD_RESOURCE_DUMP, 0); | |
2678 | } | |
2679 | ||
2d8dc5bb AS |
2680 | static int |
2681 | devlink_resources_validate(struct devlink *devlink, | |
2682 | struct devlink_resource *resource, | |
2683 | struct genl_info *info) | |
2684 | { | |
2685 | struct list_head *resource_list; | |
2686 | int err = 0; | |
2687 | ||
2688 | if (resource) | |
2689 | resource_list = &resource->resource_list; | |
2690 | else | |
2691 | resource_list = &devlink->resource_list; | |
2692 | ||
2693 | list_for_each_entry(resource, resource_list, list) { | |
2694 | if (!resource->size_valid) | |
2695 | return -EINVAL; | |
2696 | err = devlink_resources_validate(devlink, resource, info); | |
2697 | if (err) | |
2698 | return err; | |
2699 | } | |
2700 | return err; | |
2701 | } | |
2702 | ||
070c63f2 JP |
2703 | static struct net *devlink_netns_get(struct sk_buff *skb, |
2704 | struct genl_info *info) | |
2705 | { | |
2706 | struct nlattr *netns_pid_attr = info->attrs[DEVLINK_ATTR_NETNS_PID]; | |
2707 | struct nlattr *netns_fd_attr = info->attrs[DEVLINK_ATTR_NETNS_FD]; | |
2708 | struct nlattr *netns_id_attr = info->attrs[DEVLINK_ATTR_NETNS_ID]; | |
2709 | struct net *net; | |
2710 | ||
2711 | if (!!netns_pid_attr + !!netns_fd_attr + !!netns_id_attr > 1) { | |
054eae82 | 2712 | NL_SET_ERR_MSG_MOD(info->extack, "multiple netns identifying attributes specified"); |
070c63f2 JP |
2713 | return ERR_PTR(-EINVAL); |
2714 | } | |
2715 | ||
2716 | if (netns_pid_attr) { | |
2717 | net = get_net_ns_by_pid(nla_get_u32(netns_pid_attr)); | |
2718 | } else if (netns_fd_attr) { | |
2719 | net = get_net_ns_by_fd(nla_get_u32(netns_fd_attr)); | |
2720 | } else if (netns_id_attr) { | |
2721 | net = get_net_ns_by_id(sock_net(skb->sk), | |
2722 | nla_get_u32(netns_id_attr)); | |
2723 | if (!net) | |
2724 | net = ERR_PTR(-EINVAL); | |
2725 | } else { | |
2726 | WARN_ON(1); | |
2727 | net = ERR_PTR(-EINVAL); | |
2728 | } | |
2729 | if (IS_ERR(net)) { | |
054eae82 | 2730 | NL_SET_ERR_MSG_MOD(info->extack, "Unknown network namespace"); |
070c63f2 JP |
2731 | return ERR_PTR(-EINVAL); |
2732 | } | |
2733 | if (!netlink_ns_capable(skb, net->user_ns, CAP_NET_ADMIN)) { | |
2734 | put_net(net); | |
2735 | return ERR_PTR(-EPERM); | |
2736 | } | |
2737 | return net; | |
2738 | } | |
2739 | ||
2740 | static void devlink_param_notify(struct devlink *devlink, | |
2741 | unsigned int port_index, | |
2742 | struct devlink_param_item *param_item, | |
2743 | enum devlink_command cmd); | |
2744 | ||
2745 | static void devlink_reload_netns_change(struct devlink *devlink, | |
2746 | struct net *dest_net) | |
2747 | { | |
2748 | struct devlink_param_item *param_item; | |
2749 | ||
2750 | /* Userspace needs to be notified about devlink objects | |
2751 | * removed from original and entering new network namespace. | |
2752 | * The rest of the devlink objects are re-created during | |
2753 | * reload process so the notifications are generated separatelly. | |
2754 | */ | |
2755 | ||
2756 | list_for_each_entry(param_item, &devlink->param_list, list) | |
2757 | devlink_param_notify(devlink, 0, param_item, | |
2758 | DEVLINK_CMD_PARAM_DEL); | |
2759 | devlink_notify(devlink, DEVLINK_CMD_DEL); | |
2760 | ||
8273fd84 | 2761 | __devlink_net_set(devlink, dest_net); |
070c63f2 JP |
2762 | |
2763 | devlink_notify(devlink, DEVLINK_CMD_NEW); | |
2764 | list_for_each_entry(param_item, &devlink->param_list, list) | |
2765 | devlink_param_notify(devlink, 0, param_item, | |
2766 | DEVLINK_CMD_PARAM_NEW); | |
2767 | } | |
2768 | ||
97691069 JP |
2769 | static bool devlink_reload_supported(struct devlink *devlink) |
2770 | { | |
2771 | return devlink->ops->reload_down && devlink->ops->reload_up; | |
2772 | } | |
2773 | ||
2670ac26 JP |
2774 | static void devlink_reload_failed_set(struct devlink *devlink, |
2775 | bool reload_failed) | |
2776 | { | |
2777 | if (devlink->reload_failed == reload_failed) | |
2778 | return; | |
2779 | devlink->reload_failed = reload_failed; | |
2780 | devlink_notify(devlink, DEVLINK_CMD_NEW); | |
2781 | } | |
2782 | ||
2783 | bool devlink_is_reload_failed(const struct devlink *devlink) | |
2784 | { | |
2785 | return devlink->reload_failed; | |
2786 | } | |
2787 | EXPORT_SYMBOL_GPL(devlink_is_reload_failed); | |
2788 | ||
070c63f2 JP |
2789 | static int devlink_reload(struct devlink *devlink, struct net *dest_net, |
2790 | struct netlink_ext_ack *extack) | |
2791 | { | |
2792 | int err; | |
2793 | ||
a0c76345 JP |
2794 | if (!devlink->reload_enabled) |
2795 | return -EOPNOTSUPP; | |
2796 | ||
070c63f2 JP |
2797 | err = devlink->ops->reload_down(devlink, !!dest_net, extack); |
2798 | if (err) | |
2799 | return err; | |
2800 | ||
2801 | if (dest_net && !net_eq(dest_net, devlink_net(devlink))) | |
2802 | devlink_reload_netns_change(devlink, dest_net); | |
2803 | ||
2804 | err = devlink->ops->reload_up(devlink, extack); | |
2805 | devlink_reload_failed_set(devlink, !!err); | |
2806 | return err; | |
2807 | } | |
2808 | ||
2d8dc5bb AS |
2809 | static int devlink_nl_cmd_reload(struct sk_buff *skb, struct genl_info *info) |
2810 | { | |
2811 | struct devlink *devlink = info->user_ptr[0]; | |
070c63f2 | 2812 | struct net *dest_net = NULL; |
2d8dc5bb AS |
2813 | int err; |
2814 | ||
5a508a25 | 2815 | if (!devlink_reload_supported(devlink) || !devlink->reload_enabled) |
2d8dc5bb AS |
2816 | return -EOPNOTSUPP; |
2817 | ||
2818 | err = devlink_resources_validate(devlink, NULL, info); | |
2819 | if (err) { | |
2820 | NL_SET_ERR_MSG_MOD(info->extack, "resources size validation failed"); | |
2821 | return err; | |
2822 | } | |
070c63f2 JP |
2823 | |
2824 | if (info->attrs[DEVLINK_ATTR_NETNS_PID] || | |
2825 | info->attrs[DEVLINK_ATTR_NETNS_FD] || | |
2826 | info->attrs[DEVLINK_ATTR_NETNS_ID]) { | |
2827 | dest_net = devlink_netns_get(skb, info); | |
2828 | if (IS_ERR(dest_net)) | |
2829 | return PTR_ERR(dest_net); | |
2830 | } | |
2831 | ||
2832 | err = devlink_reload(devlink, dest_net, info->extack); | |
2833 | ||
2834 | if (dest_net) | |
2835 | put_net(dest_net); | |
2836 | ||
2670ac26 | 2837 | return err; |
2d8dc5bb AS |
2838 | } |
2839 | ||
191ed202 JP |
2840 | static int devlink_nl_flash_update_fill(struct sk_buff *msg, |
2841 | struct devlink *devlink, | |
2842 | enum devlink_command cmd, | |
2843 | const char *status_msg, | |
2844 | const char *component, | |
2845 | unsigned long done, unsigned long total) | |
2846 | { | |
2847 | void *hdr; | |
2848 | ||
2849 | hdr = genlmsg_put(msg, 0, 0, &devlink_nl_family, 0, cmd); | |
2850 | if (!hdr) | |
2851 | return -EMSGSIZE; | |
2852 | ||
2853 | if (devlink_nl_put_handle(msg, devlink)) | |
2854 | goto nla_put_failure; | |
2855 | ||
2856 | if (cmd != DEVLINK_CMD_FLASH_UPDATE_STATUS) | |
2857 | goto out; | |
2858 | ||
2859 | if (status_msg && | |
2860 | nla_put_string(msg, DEVLINK_ATTR_FLASH_UPDATE_STATUS_MSG, | |
2861 | status_msg)) | |
2862 | goto nla_put_failure; | |
2863 | if (component && | |
2864 | nla_put_string(msg, DEVLINK_ATTR_FLASH_UPDATE_COMPONENT, | |
2865 | component)) | |
2866 | goto nla_put_failure; | |
2867 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_FLASH_UPDATE_STATUS_DONE, | |
2868 | done, DEVLINK_ATTR_PAD)) | |
2869 | goto nla_put_failure; | |
2870 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_FLASH_UPDATE_STATUS_TOTAL, | |
2871 | total, DEVLINK_ATTR_PAD)) | |
2872 | goto nla_put_failure; | |
2873 | ||
2874 | out: | |
2875 | genlmsg_end(msg, hdr); | |
2876 | return 0; | |
2877 | ||
2878 | nla_put_failure: | |
2879 | genlmsg_cancel(msg, hdr); | |
2880 | return -EMSGSIZE; | |
2881 | } | |
2882 | ||
2883 | static void __devlink_flash_update_notify(struct devlink *devlink, | |
2884 | enum devlink_command cmd, | |
2885 | const char *status_msg, | |
2886 | const char *component, | |
2887 | unsigned long done, | |
2888 | unsigned long total) | |
2889 | { | |
2890 | struct sk_buff *msg; | |
2891 | int err; | |
2892 | ||
2893 | WARN_ON(cmd != DEVLINK_CMD_FLASH_UPDATE && | |
2894 | cmd != DEVLINK_CMD_FLASH_UPDATE_END && | |
2895 | cmd != DEVLINK_CMD_FLASH_UPDATE_STATUS); | |
2896 | ||
2897 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
2898 | if (!msg) | |
2899 | return; | |
2900 | ||
2901 | err = devlink_nl_flash_update_fill(msg, devlink, cmd, status_msg, | |
2902 | component, done, total); | |
2903 | if (err) | |
2904 | goto out_free_msg; | |
2905 | ||
2906 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), | |
2907 | msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
2908 | return; | |
2909 | ||
2910 | out_free_msg: | |
2911 | nlmsg_free(msg); | |
2912 | } | |
2913 | ||
2914 | void devlink_flash_update_begin_notify(struct devlink *devlink) | |
2915 | { | |
2916 | __devlink_flash_update_notify(devlink, | |
2917 | DEVLINK_CMD_FLASH_UPDATE, | |
2918 | NULL, NULL, 0, 0); | |
2919 | } | |
2920 | EXPORT_SYMBOL_GPL(devlink_flash_update_begin_notify); | |
2921 | ||
2922 | void devlink_flash_update_end_notify(struct devlink *devlink) | |
2923 | { | |
2924 | __devlink_flash_update_notify(devlink, | |
2925 | DEVLINK_CMD_FLASH_UPDATE_END, | |
2926 | NULL, NULL, 0, 0); | |
2927 | } | |
2928 | EXPORT_SYMBOL_GPL(devlink_flash_update_end_notify); | |
2929 | ||
2930 | void devlink_flash_update_status_notify(struct devlink *devlink, | |
2931 | const char *status_msg, | |
2932 | const char *component, | |
2933 | unsigned long done, | |
2934 | unsigned long total) | |
2935 | { | |
2936 | __devlink_flash_update_notify(devlink, | |
2937 | DEVLINK_CMD_FLASH_UPDATE_STATUS, | |
2938 | status_msg, component, done, total); | |
2939 | } | |
2940 | EXPORT_SYMBOL_GPL(devlink_flash_update_status_notify); | |
2941 | ||
76726ccb JK |
2942 | static int devlink_nl_cmd_flash_update(struct sk_buff *skb, |
2943 | struct genl_info *info) | |
2944 | { | |
2945 | struct devlink *devlink = info->user_ptr[0]; | |
2946 | const char *file_name, *component; | |
2947 | struct nlattr *nla_component; | |
2948 | ||
2949 | if (!devlink->ops->flash_update) | |
2950 | return -EOPNOTSUPP; | |
2951 | ||
2952 | if (!info->attrs[DEVLINK_ATTR_FLASH_UPDATE_FILE_NAME]) | |
2953 | return -EINVAL; | |
2954 | file_name = nla_data(info->attrs[DEVLINK_ATTR_FLASH_UPDATE_FILE_NAME]); | |
2955 | ||
2956 | nla_component = info->attrs[DEVLINK_ATTR_FLASH_UPDATE_COMPONENT]; | |
2957 | component = nla_component ? nla_data(nla_component) : NULL; | |
2958 | ||
2959 | return devlink->ops->flash_update(devlink, file_name, component, | |
2960 | info->extack); | |
2961 | } | |
2962 | ||
036467c3 MS |
2963 | static const struct devlink_param devlink_param_generic[] = { |
2964 | { | |
2965 | .id = DEVLINK_PARAM_GENERIC_ID_INT_ERR_RESET, | |
2966 | .name = DEVLINK_PARAM_GENERIC_INT_ERR_RESET_NAME, | |
2967 | .type = DEVLINK_PARAM_GENERIC_INT_ERR_RESET_TYPE, | |
2968 | }, | |
2969 | { | |
2970 | .id = DEVLINK_PARAM_GENERIC_ID_MAX_MACS, | |
2971 | .name = DEVLINK_PARAM_GENERIC_MAX_MACS_NAME, | |
2972 | .type = DEVLINK_PARAM_GENERIC_MAX_MACS_TYPE, | |
2973 | }, | |
f567bcda VV |
2974 | { |
2975 | .id = DEVLINK_PARAM_GENERIC_ID_ENABLE_SRIOV, | |
2976 | .name = DEVLINK_PARAM_GENERIC_ENABLE_SRIOV_NAME, | |
2977 | .type = DEVLINK_PARAM_GENERIC_ENABLE_SRIOV_TYPE, | |
2978 | }, | |
f6a69885 AV |
2979 | { |
2980 | .id = DEVLINK_PARAM_GENERIC_ID_REGION_SNAPSHOT, | |
2981 | .name = DEVLINK_PARAM_GENERIC_REGION_SNAPSHOT_NAME, | |
2982 | .type = DEVLINK_PARAM_GENERIC_REGION_SNAPSHOT_TYPE, | |
2983 | }, | |
e3b51061 VV |
2984 | { |
2985 | .id = DEVLINK_PARAM_GENERIC_ID_IGNORE_ARI, | |
2986 | .name = DEVLINK_PARAM_GENERIC_IGNORE_ARI_NAME, | |
2987 | .type = DEVLINK_PARAM_GENERIC_IGNORE_ARI_TYPE, | |
2988 | }, | |
f61cba42 VV |
2989 | { |
2990 | .id = DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MAX, | |
2991 | .name = DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MAX_NAME, | |
2992 | .type = DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MAX_TYPE, | |
2993 | }, | |
16511789 VV |
2994 | { |
2995 | .id = DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MIN, | |
2996 | .name = DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MIN_NAME, | |
2997 | .type = DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MIN_TYPE, | |
2998 | }, | |
846e980a ST |
2999 | { |
3000 | .id = DEVLINK_PARAM_GENERIC_ID_FW_LOAD_POLICY, | |
3001 | .name = DEVLINK_PARAM_GENERIC_FW_LOAD_POLICY_NAME, | |
3002 | .type = DEVLINK_PARAM_GENERIC_FW_LOAD_POLICY_TYPE, | |
3003 | }, | |
5bbd21df DM |
3004 | { |
3005 | .id = DEVLINK_PARAM_GENERIC_ID_RESET_DEV_ON_DRV_PROBE, | |
3006 | .name = DEVLINK_PARAM_GENERIC_RESET_DEV_ON_DRV_PROBE_NAME, | |
3007 | .type = DEVLINK_PARAM_GENERIC_RESET_DEV_ON_DRV_PROBE_TYPE, | |
3008 | }, | |
6c7295e1 MG |
3009 | { |
3010 | .id = DEVLINK_PARAM_GENERIC_ID_ENABLE_ROCE, | |
3011 | .name = DEVLINK_PARAM_GENERIC_ENABLE_ROCE_NAME, | |
3012 | .type = DEVLINK_PARAM_GENERIC_ENABLE_ROCE_TYPE, | |
3013 | }, | |
036467c3 | 3014 | }; |
eabaef18 MS |
3015 | |
3016 | static int devlink_param_generic_verify(const struct devlink_param *param) | |
3017 | { | |
3018 | /* verify it match generic parameter by id and name */ | |
3019 | if (param->id > DEVLINK_PARAM_GENERIC_ID_MAX) | |
3020 | return -EINVAL; | |
3021 | if (strcmp(param->name, devlink_param_generic[param->id].name)) | |
3022 | return -ENOENT; | |
3023 | ||
3024 | WARN_ON(param->type != devlink_param_generic[param->id].type); | |
3025 | ||
3026 | return 0; | |
3027 | } | |
3028 | ||
3029 | static int devlink_param_driver_verify(const struct devlink_param *param) | |
3030 | { | |
3031 | int i; | |
3032 | ||
3033 | if (param->id <= DEVLINK_PARAM_GENERIC_ID_MAX) | |
3034 | return -EINVAL; | |
3035 | /* verify no such name in generic params */ | |
3036 | for (i = 0; i <= DEVLINK_PARAM_GENERIC_ID_MAX; i++) | |
3037 | if (!strcmp(param->name, devlink_param_generic[i].name)) | |
3038 | return -EEXIST; | |
3039 | ||
3040 | return 0; | |
3041 | } | |
3042 | ||
3043 | static struct devlink_param_item * | |
3044 | devlink_param_find_by_name(struct list_head *param_list, | |
3045 | const char *param_name) | |
3046 | { | |
3047 | struct devlink_param_item *param_item; | |
3048 | ||
3049 | list_for_each_entry(param_item, param_list, list) | |
3050 | if (!strcmp(param_item->param->name, param_name)) | |
3051 | return param_item; | |
3052 | return NULL; | |
3053 | } | |
3054 | ||
ec01aeb1 MS |
3055 | static struct devlink_param_item * |
3056 | devlink_param_find_by_id(struct list_head *param_list, u32 param_id) | |
3057 | { | |
3058 | struct devlink_param_item *param_item; | |
3059 | ||
3060 | list_for_each_entry(param_item, param_list, list) | |
3061 | if (param_item->param->id == param_id) | |
3062 | return param_item; | |
3063 | return NULL; | |
3064 | } | |
3065 | ||
45f05def MS |
3066 | static bool |
3067 | devlink_param_cmode_is_supported(const struct devlink_param *param, | |
3068 | enum devlink_param_cmode cmode) | |
3069 | { | |
3070 | return test_bit(cmode, ¶m->supported_cmodes); | |
3071 | } | |
3072 | ||
3073 | static int devlink_param_get(struct devlink *devlink, | |
3074 | const struct devlink_param *param, | |
3075 | struct devlink_param_gset_ctx *ctx) | |
3076 | { | |
3077 | if (!param->get) | |
3078 | return -EOPNOTSUPP; | |
3079 | return param->get(devlink, param->id, ctx); | |
3080 | } | |
3081 | ||
e3b7ca18 MS |
3082 | static int devlink_param_set(struct devlink *devlink, |
3083 | const struct devlink_param *param, | |
3084 | struct devlink_param_gset_ctx *ctx) | |
3085 | { | |
3086 | if (!param->set) | |
3087 | return -EOPNOTSUPP; | |
3088 | return param->set(devlink, param->id, ctx); | |
3089 | } | |
3090 | ||
45f05def MS |
3091 | static int |
3092 | devlink_param_type_to_nla_type(enum devlink_param_type param_type) | |
3093 | { | |
3094 | switch (param_type) { | |
3095 | case DEVLINK_PARAM_TYPE_U8: | |
3096 | return NLA_U8; | |
3097 | case DEVLINK_PARAM_TYPE_U16: | |
3098 | return NLA_U16; | |
3099 | case DEVLINK_PARAM_TYPE_U32: | |
3100 | return NLA_U32; | |
3101 | case DEVLINK_PARAM_TYPE_STRING: | |
3102 | return NLA_STRING; | |
3103 | case DEVLINK_PARAM_TYPE_BOOL: | |
3104 | return NLA_FLAG; | |
3105 | default: | |
3106 | return -EINVAL; | |
3107 | } | |
3108 | } | |
3109 | ||
3110 | static int | |
3111 | devlink_nl_param_value_fill_one(struct sk_buff *msg, | |
3112 | enum devlink_param_type type, | |
3113 | enum devlink_param_cmode cmode, | |
3114 | union devlink_param_value val) | |
3115 | { | |
3116 | struct nlattr *param_value_attr; | |
3117 | ||
ae0be8de MK |
3118 | param_value_attr = nla_nest_start_noflag(msg, |
3119 | DEVLINK_ATTR_PARAM_VALUE); | |
45f05def MS |
3120 | if (!param_value_attr) |
3121 | goto nla_put_failure; | |
3122 | ||
3123 | if (nla_put_u8(msg, DEVLINK_ATTR_PARAM_VALUE_CMODE, cmode)) | |
3124 | goto value_nest_cancel; | |
3125 | ||
3126 | switch (type) { | |
3127 | case DEVLINK_PARAM_TYPE_U8: | |
3128 | if (nla_put_u8(msg, DEVLINK_ATTR_PARAM_VALUE_DATA, val.vu8)) | |
3129 | goto value_nest_cancel; | |
3130 | break; | |
3131 | case DEVLINK_PARAM_TYPE_U16: | |
3132 | if (nla_put_u16(msg, DEVLINK_ATTR_PARAM_VALUE_DATA, val.vu16)) | |
3133 | goto value_nest_cancel; | |
3134 | break; | |
3135 | case DEVLINK_PARAM_TYPE_U32: | |
3136 | if (nla_put_u32(msg, DEVLINK_ATTR_PARAM_VALUE_DATA, val.vu32)) | |
3137 | goto value_nest_cancel; | |
3138 | break; | |
3139 | case DEVLINK_PARAM_TYPE_STRING: | |
3140 | if (nla_put_string(msg, DEVLINK_ATTR_PARAM_VALUE_DATA, | |
3141 | val.vstr)) | |
3142 | goto value_nest_cancel; | |
3143 | break; | |
3144 | case DEVLINK_PARAM_TYPE_BOOL: | |
3145 | if (val.vbool && | |
3146 | nla_put_flag(msg, DEVLINK_ATTR_PARAM_VALUE_DATA)) | |
3147 | goto value_nest_cancel; | |
3148 | break; | |
3149 | } | |
3150 | ||
3151 | nla_nest_end(msg, param_value_attr); | |
3152 | return 0; | |
3153 | ||
3154 | value_nest_cancel: | |
3155 | nla_nest_cancel(msg, param_value_attr); | |
3156 | nla_put_failure: | |
3157 | return -EMSGSIZE; | |
3158 | } | |
3159 | ||
3160 | static int devlink_nl_param_fill(struct sk_buff *msg, struct devlink *devlink, | |
f4601dee | 3161 | unsigned int port_index, |
45f05def MS |
3162 | struct devlink_param_item *param_item, |
3163 | enum devlink_command cmd, | |
3164 | u32 portid, u32 seq, int flags) | |
3165 | { | |
3166 | union devlink_param_value param_value[DEVLINK_PARAM_CMODE_MAX + 1]; | |
7c62cfb8 | 3167 | bool param_value_set[DEVLINK_PARAM_CMODE_MAX + 1] = {}; |
45f05def MS |
3168 | const struct devlink_param *param = param_item->param; |
3169 | struct devlink_param_gset_ctx ctx; | |
3170 | struct nlattr *param_values_list; | |
3171 | struct nlattr *param_attr; | |
3172 | int nla_type; | |
3173 | void *hdr; | |
3174 | int err; | |
3175 | int i; | |
3176 | ||
3177 | /* Get value from driver part to driverinit configuration mode */ | |
3178 | for (i = 0; i <= DEVLINK_PARAM_CMODE_MAX; i++) { | |
3179 | if (!devlink_param_cmode_is_supported(param, i)) | |
3180 | continue; | |
3181 | if (i == DEVLINK_PARAM_CMODE_DRIVERINIT) { | |
3182 | if (!param_item->driverinit_value_valid) | |
3183 | return -EOPNOTSUPP; | |
3184 | param_value[i] = param_item->driverinit_value; | |
3185 | } else { | |
7c62cfb8 JP |
3186 | if (!param_item->published) |
3187 | continue; | |
45f05def MS |
3188 | ctx.cmode = i; |
3189 | err = devlink_param_get(devlink, param, &ctx); | |
3190 | if (err) | |
3191 | return err; | |
3192 | param_value[i] = ctx.val; | |
3193 | } | |
7c62cfb8 | 3194 | param_value_set[i] = true; |
45f05def MS |
3195 | } |
3196 | ||
3197 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
3198 | if (!hdr) | |
3199 | return -EMSGSIZE; | |
3200 | ||
3201 | if (devlink_nl_put_handle(msg, devlink)) | |
3202 | goto genlmsg_cancel; | |
f4601dee | 3203 | |
c1e5786d VV |
3204 | if (cmd == DEVLINK_CMD_PORT_PARAM_GET || |
3205 | cmd == DEVLINK_CMD_PORT_PARAM_NEW || | |
3206 | cmd == DEVLINK_CMD_PORT_PARAM_DEL) | |
f4601dee VV |
3207 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, port_index)) |
3208 | goto genlmsg_cancel; | |
3209 | ||
ae0be8de | 3210 | param_attr = nla_nest_start_noflag(msg, DEVLINK_ATTR_PARAM); |
45f05def MS |
3211 | if (!param_attr) |
3212 | goto genlmsg_cancel; | |
3213 | if (nla_put_string(msg, DEVLINK_ATTR_PARAM_NAME, param->name)) | |
3214 | goto param_nest_cancel; | |
3215 | if (param->generic && nla_put_flag(msg, DEVLINK_ATTR_PARAM_GENERIC)) | |
3216 | goto param_nest_cancel; | |
3217 | ||
3218 | nla_type = devlink_param_type_to_nla_type(param->type); | |
3219 | if (nla_type < 0) | |
3220 | goto param_nest_cancel; | |
3221 | if (nla_put_u8(msg, DEVLINK_ATTR_PARAM_TYPE, nla_type)) | |
3222 | goto param_nest_cancel; | |
3223 | ||
ae0be8de MK |
3224 | param_values_list = nla_nest_start_noflag(msg, |
3225 | DEVLINK_ATTR_PARAM_VALUES_LIST); | |
45f05def MS |
3226 | if (!param_values_list) |
3227 | goto param_nest_cancel; | |
3228 | ||
3229 | for (i = 0; i <= DEVLINK_PARAM_CMODE_MAX; i++) { | |
7c62cfb8 | 3230 | if (!param_value_set[i]) |
45f05def MS |
3231 | continue; |
3232 | err = devlink_nl_param_value_fill_one(msg, param->type, | |
3233 | i, param_value[i]); | |
3234 | if (err) | |
3235 | goto values_list_nest_cancel; | |
3236 | } | |
3237 | ||
3238 | nla_nest_end(msg, param_values_list); | |
3239 | nla_nest_end(msg, param_attr); | |
3240 | genlmsg_end(msg, hdr); | |
3241 | return 0; | |
3242 | ||
3243 | values_list_nest_cancel: | |
3244 | nla_nest_end(msg, param_values_list); | |
3245 | param_nest_cancel: | |
3246 | nla_nest_cancel(msg, param_attr); | |
3247 | genlmsg_cancel: | |
3248 | genlmsg_cancel(msg, hdr); | |
3249 | return -EMSGSIZE; | |
3250 | } | |
3251 | ||
ea601e17 | 3252 | static void devlink_param_notify(struct devlink *devlink, |
c1e5786d | 3253 | unsigned int port_index, |
ea601e17 MS |
3254 | struct devlink_param_item *param_item, |
3255 | enum devlink_command cmd) | |
3256 | { | |
3257 | struct sk_buff *msg; | |
3258 | int err; | |
3259 | ||
c1e5786d VV |
3260 | WARN_ON(cmd != DEVLINK_CMD_PARAM_NEW && cmd != DEVLINK_CMD_PARAM_DEL && |
3261 | cmd != DEVLINK_CMD_PORT_PARAM_NEW && | |
3262 | cmd != DEVLINK_CMD_PORT_PARAM_DEL); | |
ea601e17 MS |
3263 | |
3264 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
3265 | if (!msg) | |
3266 | return; | |
c1e5786d VV |
3267 | err = devlink_nl_param_fill(msg, devlink, port_index, param_item, cmd, |
3268 | 0, 0, 0); | |
ea601e17 MS |
3269 | if (err) { |
3270 | nlmsg_free(msg); | |
3271 | return; | |
3272 | } | |
3273 | ||
3274 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), | |
3275 | msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
3276 | } | |
3277 | ||
45f05def MS |
3278 | static int devlink_nl_cmd_param_get_dumpit(struct sk_buff *msg, |
3279 | struct netlink_callback *cb) | |
3280 | { | |
3281 | struct devlink_param_item *param_item; | |
3282 | struct devlink *devlink; | |
3283 | int start = cb->args[0]; | |
3284 | int idx = 0; | |
c62c2cfb | 3285 | int err = 0; |
45f05def MS |
3286 | |
3287 | mutex_lock(&devlink_mutex); | |
3288 | list_for_each_entry(devlink, &devlink_list, list) { | |
3289 | if (!net_eq(devlink_net(devlink), sock_net(msg->sk))) | |
3290 | continue; | |
3291 | mutex_lock(&devlink->lock); | |
3292 | list_for_each_entry(param_item, &devlink->param_list, list) { | |
3293 | if (idx < start) { | |
3294 | idx++; | |
3295 | continue; | |
3296 | } | |
f4601dee | 3297 | err = devlink_nl_param_fill(msg, devlink, 0, param_item, |
45f05def MS |
3298 | DEVLINK_CMD_PARAM_GET, |
3299 | NETLINK_CB(cb->skb).portid, | |
3300 | cb->nlh->nlmsg_seq, | |
3301 | NLM_F_MULTI); | |
93c2fcb0 | 3302 | if (err && err != -EOPNOTSUPP) { |
45f05def MS |
3303 | mutex_unlock(&devlink->lock); |
3304 | goto out; | |
3305 | } | |
3306 | idx++; | |
3307 | } | |
3308 | mutex_unlock(&devlink->lock); | |
3309 | } | |
3310 | out: | |
3311 | mutex_unlock(&devlink_mutex); | |
3312 | ||
c62c2cfb JP |
3313 | if (err != -EMSGSIZE) |
3314 | return err; | |
3315 | ||
45f05def MS |
3316 | cb->args[0] = idx; |
3317 | return msg->len; | |
3318 | } | |
3319 | ||
e3b7ca18 MS |
3320 | static int |
3321 | devlink_param_type_get_from_info(struct genl_info *info, | |
3322 | enum devlink_param_type *param_type) | |
3323 | { | |
3324 | if (!info->attrs[DEVLINK_ATTR_PARAM_TYPE]) | |
3325 | return -EINVAL; | |
3326 | ||
3327 | switch (nla_get_u8(info->attrs[DEVLINK_ATTR_PARAM_TYPE])) { | |
3328 | case NLA_U8: | |
3329 | *param_type = DEVLINK_PARAM_TYPE_U8; | |
3330 | break; | |
3331 | case NLA_U16: | |
3332 | *param_type = DEVLINK_PARAM_TYPE_U16; | |
3333 | break; | |
3334 | case NLA_U32: | |
3335 | *param_type = DEVLINK_PARAM_TYPE_U32; | |
3336 | break; | |
3337 | case NLA_STRING: | |
3338 | *param_type = DEVLINK_PARAM_TYPE_STRING; | |
3339 | break; | |
3340 | case NLA_FLAG: | |
3341 | *param_type = DEVLINK_PARAM_TYPE_BOOL; | |
3342 | break; | |
3343 | default: | |
3344 | return -EINVAL; | |
3345 | } | |
3346 | ||
3347 | return 0; | |
3348 | } | |
3349 | ||
3350 | static int | |
3351 | devlink_param_value_get_from_info(const struct devlink_param *param, | |
3352 | struct genl_info *info, | |
3353 | union devlink_param_value *value) | |
3354 | { | |
8750939b | 3355 | struct nlattr *param_data; |
f355cfcd MS |
3356 | int len; |
3357 | ||
8750939b JK |
3358 | param_data = info->attrs[DEVLINK_ATTR_PARAM_VALUE_DATA]; |
3359 | ||
3360 | if (param->type != DEVLINK_PARAM_TYPE_BOOL && !param_data) | |
e3b7ca18 MS |
3361 | return -EINVAL; |
3362 | ||
3363 | switch (param->type) { | |
3364 | case DEVLINK_PARAM_TYPE_U8: | |
8750939b JK |
3365 | if (nla_len(param_data) != sizeof(u8)) |
3366 | return -EINVAL; | |
3367 | value->vu8 = nla_get_u8(param_data); | |
e3b7ca18 MS |
3368 | break; |
3369 | case DEVLINK_PARAM_TYPE_U16: | |
8750939b JK |
3370 | if (nla_len(param_data) != sizeof(u16)) |
3371 | return -EINVAL; | |
3372 | value->vu16 = nla_get_u16(param_data); | |
e3b7ca18 MS |
3373 | break; |
3374 | case DEVLINK_PARAM_TYPE_U32: | |
8750939b JK |
3375 | if (nla_len(param_data) != sizeof(u32)) |
3376 | return -EINVAL; | |
3377 | value->vu32 = nla_get_u32(param_data); | |
e3b7ca18 MS |
3378 | break; |
3379 | case DEVLINK_PARAM_TYPE_STRING: | |
8750939b JK |
3380 | len = strnlen(nla_data(param_data), nla_len(param_data)); |
3381 | if (len == nla_len(param_data) || | |
bde74ad1 | 3382 | len >= __DEVLINK_PARAM_MAX_STRING_VALUE) |
e3b7ca18 | 3383 | return -EINVAL; |
8750939b | 3384 | strcpy(value->vstr, nla_data(param_data)); |
e3b7ca18 MS |
3385 | break; |
3386 | case DEVLINK_PARAM_TYPE_BOOL: | |
8750939b JK |
3387 | if (param_data && nla_len(param_data)) |
3388 | return -EINVAL; | |
3389 | value->vbool = nla_get_flag(param_data); | |
e3b7ca18 MS |
3390 | break; |
3391 | } | |
3392 | return 0; | |
3393 | } | |
3394 | ||
45f05def | 3395 | static struct devlink_param_item * |
f4601dee | 3396 | devlink_param_get_from_info(struct list_head *param_list, |
45f05def MS |
3397 | struct genl_info *info) |
3398 | { | |
3399 | char *param_name; | |
3400 | ||
3401 | if (!info->attrs[DEVLINK_ATTR_PARAM_NAME]) | |
3402 | return NULL; | |
3403 | ||
3404 | param_name = nla_data(info->attrs[DEVLINK_ATTR_PARAM_NAME]); | |
f4601dee | 3405 | return devlink_param_find_by_name(param_list, param_name); |
45f05def MS |
3406 | } |
3407 | ||
3408 | static int devlink_nl_cmd_param_get_doit(struct sk_buff *skb, | |
3409 | struct genl_info *info) | |
3410 | { | |
3411 | struct devlink *devlink = info->user_ptr[0]; | |
3412 | struct devlink_param_item *param_item; | |
3413 | struct sk_buff *msg; | |
3414 | int err; | |
3415 | ||
f4601dee | 3416 | param_item = devlink_param_get_from_info(&devlink->param_list, info); |
45f05def MS |
3417 | if (!param_item) |
3418 | return -EINVAL; | |
3419 | ||
3420 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
3421 | if (!msg) | |
3422 | return -ENOMEM; | |
3423 | ||
f4601dee | 3424 | err = devlink_nl_param_fill(msg, devlink, 0, param_item, |
45f05def MS |
3425 | DEVLINK_CMD_PARAM_GET, |
3426 | info->snd_portid, info->snd_seq, 0); | |
3427 | if (err) { | |
3428 | nlmsg_free(msg); | |
3429 | return err; | |
3430 | } | |
3431 | ||
3432 | return genlmsg_reply(msg, info); | |
3433 | } | |
3434 | ||
9c54873b | 3435 | static int __devlink_nl_cmd_param_set_doit(struct devlink *devlink, |
c1e5786d | 3436 | unsigned int port_index, |
9c54873b VV |
3437 | struct list_head *param_list, |
3438 | struct genl_info *info, | |
3439 | enum devlink_command cmd) | |
e3b7ca18 | 3440 | { |
e3b7ca18 MS |
3441 | enum devlink_param_type param_type; |
3442 | struct devlink_param_gset_ctx ctx; | |
3443 | enum devlink_param_cmode cmode; | |
3444 | struct devlink_param_item *param_item; | |
3445 | const struct devlink_param *param; | |
3446 | union devlink_param_value value; | |
3447 | int err = 0; | |
3448 | ||
9c54873b | 3449 | param_item = devlink_param_get_from_info(param_list, info); |
e3b7ca18 MS |
3450 | if (!param_item) |
3451 | return -EINVAL; | |
3452 | param = param_item->param; | |
3453 | err = devlink_param_type_get_from_info(info, ¶m_type); | |
3454 | if (err) | |
3455 | return err; | |
3456 | if (param_type != param->type) | |
3457 | return -EINVAL; | |
3458 | err = devlink_param_value_get_from_info(param, info, &value); | |
3459 | if (err) | |
3460 | return err; | |
3461 | if (param->validate) { | |
3462 | err = param->validate(devlink, param->id, value, info->extack); | |
3463 | if (err) | |
3464 | return err; | |
3465 | } | |
3466 | ||
3467 | if (!info->attrs[DEVLINK_ATTR_PARAM_VALUE_CMODE]) | |
3468 | return -EINVAL; | |
3469 | cmode = nla_get_u8(info->attrs[DEVLINK_ATTR_PARAM_VALUE_CMODE]); | |
3470 | if (!devlink_param_cmode_is_supported(param, cmode)) | |
3471 | return -EOPNOTSUPP; | |
3472 | ||
3473 | if (cmode == DEVLINK_PARAM_CMODE_DRIVERINIT) { | |
1276534c MS |
3474 | if (param->type == DEVLINK_PARAM_TYPE_STRING) |
3475 | strcpy(param_item->driverinit_value.vstr, value.vstr); | |
3476 | else | |
3477 | param_item->driverinit_value = value; | |
e3b7ca18 MS |
3478 | param_item->driverinit_value_valid = true; |
3479 | } else { | |
3480 | if (!param->set) | |
3481 | return -EOPNOTSUPP; | |
3482 | ctx.val = value; | |
3483 | ctx.cmode = cmode; | |
3484 | err = devlink_param_set(devlink, param, &ctx); | |
3485 | if (err) | |
3486 | return err; | |
3487 | } | |
3488 | ||
c1e5786d | 3489 | devlink_param_notify(devlink, port_index, param_item, cmd); |
e3b7ca18 MS |
3490 | return 0; |
3491 | } | |
3492 | ||
9c54873b VV |
3493 | static int devlink_nl_cmd_param_set_doit(struct sk_buff *skb, |
3494 | struct genl_info *info) | |
3495 | { | |
3496 | struct devlink *devlink = info->user_ptr[0]; | |
3497 | ||
c1e5786d | 3498 | return __devlink_nl_cmd_param_set_doit(devlink, 0, &devlink->param_list, |
9c54873b VV |
3499 | info, DEVLINK_CMD_PARAM_NEW); |
3500 | } | |
3501 | ||
eabaef18 | 3502 | static int devlink_param_register_one(struct devlink *devlink, |
c1e5786d | 3503 | unsigned int port_index, |
39e6160e | 3504 | struct list_head *param_list, |
c1e5786d VV |
3505 | const struct devlink_param *param, |
3506 | enum devlink_command cmd) | |
eabaef18 MS |
3507 | { |
3508 | struct devlink_param_item *param_item; | |
3509 | ||
39e6160e | 3510 | if (devlink_param_find_by_name(param_list, param->name)) |
eabaef18 MS |
3511 | return -EEXIST; |
3512 | ||
3513 | if (param->supported_cmodes == BIT(DEVLINK_PARAM_CMODE_DRIVERINIT)) | |
3514 | WARN_ON(param->get || param->set); | |
3515 | else | |
3516 | WARN_ON(!param->get || !param->set); | |
3517 | ||
3518 | param_item = kzalloc(sizeof(*param_item), GFP_KERNEL); | |
3519 | if (!param_item) | |
3520 | return -ENOMEM; | |
3521 | param_item->param = param; | |
3522 | ||
39e6160e | 3523 | list_add_tail(¶m_item->list, param_list); |
c1e5786d | 3524 | devlink_param_notify(devlink, port_index, param_item, cmd); |
eabaef18 MS |
3525 | return 0; |
3526 | } | |
3527 | ||
3528 | static void devlink_param_unregister_one(struct devlink *devlink, | |
c1e5786d | 3529 | unsigned int port_index, |
39e6160e | 3530 | struct list_head *param_list, |
c1e5786d VV |
3531 | const struct devlink_param *param, |
3532 | enum devlink_command cmd) | |
eabaef18 MS |
3533 | { |
3534 | struct devlink_param_item *param_item; | |
3535 | ||
39e6160e | 3536 | param_item = devlink_param_find_by_name(param_list, param->name); |
eabaef18 | 3537 | WARN_ON(!param_item); |
c1e5786d | 3538 | devlink_param_notify(devlink, port_index, param_item, cmd); |
eabaef18 MS |
3539 | list_del(¶m_item->list); |
3540 | kfree(param_item); | |
3541 | } | |
3542 | ||
f4601dee VV |
3543 | static int devlink_nl_cmd_port_param_get_dumpit(struct sk_buff *msg, |
3544 | struct netlink_callback *cb) | |
3545 | { | |
3546 | struct devlink_param_item *param_item; | |
3547 | struct devlink_port *devlink_port; | |
3548 | struct devlink *devlink; | |
3549 | int start = cb->args[0]; | |
3550 | int idx = 0; | |
c62c2cfb | 3551 | int err = 0; |
f4601dee VV |
3552 | |
3553 | mutex_lock(&devlink_mutex); | |
3554 | list_for_each_entry(devlink, &devlink_list, list) { | |
3555 | if (!net_eq(devlink_net(devlink), sock_net(msg->sk))) | |
3556 | continue; | |
3557 | mutex_lock(&devlink->lock); | |
3558 | list_for_each_entry(devlink_port, &devlink->port_list, list) { | |
3559 | list_for_each_entry(param_item, | |
3560 | &devlink_port->param_list, list) { | |
3561 | if (idx < start) { | |
3562 | idx++; | |
3563 | continue; | |
3564 | } | |
3565 | err = devlink_nl_param_fill(msg, | |
3566 | devlink_port->devlink, | |
3567 | devlink_port->index, param_item, | |
3568 | DEVLINK_CMD_PORT_PARAM_GET, | |
3569 | NETLINK_CB(cb->skb).portid, | |
3570 | cb->nlh->nlmsg_seq, | |
3571 | NLM_F_MULTI); | |
93c2fcb0 | 3572 | if (err && err != -EOPNOTSUPP) { |
f4601dee VV |
3573 | mutex_unlock(&devlink->lock); |
3574 | goto out; | |
3575 | } | |
3576 | idx++; | |
3577 | } | |
3578 | } | |
3579 | mutex_unlock(&devlink->lock); | |
3580 | } | |
3581 | out: | |
3582 | mutex_unlock(&devlink_mutex); | |
3583 | ||
c62c2cfb JP |
3584 | if (err != -EMSGSIZE) |
3585 | return err; | |
3586 | ||
f4601dee VV |
3587 | cb->args[0] = idx; |
3588 | return msg->len; | |
3589 | } | |
3590 | ||
3591 | static int devlink_nl_cmd_port_param_get_doit(struct sk_buff *skb, | |
3592 | struct genl_info *info) | |
3593 | { | |
3594 | struct devlink_port *devlink_port = info->user_ptr[0]; | |
3595 | struct devlink_param_item *param_item; | |
3596 | struct sk_buff *msg; | |
3597 | int err; | |
3598 | ||
3599 | param_item = devlink_param_get_from_info(&devlink_port->param_list, | |
3600 | info); | |
3601 | if (!param_item) | |
3602 | return -EINVAL; | |
3603 | ||
3604 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
3605 | if (!msg) | |
3606 | return -ENOMEM; | |
3607 | ||
3608 | err = devlink_nl_param_fill(msg, devlink_port->devlink, | |
3609 | devlink_port->index, param_item, | |
3610 | DEVLINK_CMD_PORT_PARAM_GET, | |
3611 | info->snd_portid, info->snd_seq, 0); | |
3612 | if (err) { | |
3613 | nlmsg_free(msg); | |
3614 | return err; | |
3615 | } | |
3616 | ||
3617 | return genlmsg_reply(msg, info); | |
3618 | } | |
3619 | ||
9c54873b VV |
3620 | static int devlink_nl_cmd_port_param_set_doit(struct sk_buff *skb, |
3621 | struct genl_info *info) | |
3622 | { | |
3623 | struct devlink_port *devlink_port = info->user_ptr[0]; | |
3624 | ||
3625 | return __devlink_nl_cmd_param_set_doit(devlink_port->devlink, | |
c1e5786d VV |
3626 | devlink_port->index, |
3627 | &devlink_port->param_list, info, | |
3628 | DEVLINK_CMD_PORT_PARAM_NEW); | |
9c54873b VV |
3629 | } |
3630 | ||
a006d467 AV |
3631 | static int devlink_nl_region_snapshot_id_put(struct sk_buff *msg, |
3632 | struct devlink *devlink, | |
3633 | struct devlink_snapshot *snapshot) | |
3634 | { | |
3635 | struct nlattr *snap_attr; | |
3636 | int err; | |
3637 | ||
ae0be8de | 3638 | snap_attr = nla_nest_start_noflag(msg, DEVLINK_ATTR_REGION_SNAPSHOT); |
a006d467 AV |
3639 | if (!snap_attr) |
3640 | return -EINVAL; | |
3641 | ||
3642 | err = nla_put_u32(msg, DEVLINK_ATTR_REGION_SNAPSHOT_ID, snapshot->id); | |
3643 | if (err) | |
3644 | goto nla_put_failure; | |
3645 | ||
3646 | nla_nest_end(msg, snap_attr); | |
3647 | return 0; | |
3648 | ||
3649 | nla_put_failure: | |
3650 | nla_nest_cancel(msg, snap_attr); | |
3651 | return err; | |
3652 | } | |
3653 | ||
3654 | static int devlink_nl_region_snapshots_id_put(struct sk_buff *msg, | |
3655 | struct devlink *devlink, | |
3656 | struct devlink_region *region) | |
3657 | { | |
3658 | struct devlink_snapshot *snapshot; | |
3659 | struct nlattr *snapshots_attr; | |
3660 | int err; | |
3661 | ||
ae0be8de MK |
3662 | snapshots_attr = nla_nest_start_noflag(msg, |
3663 | DEVLINK_ATTR_REGION_SNAPSHOTS); | |
a006d467 AV |
3664 | if (!snapshots_attr) |
3665 | return -EINVAL; | |
3666 | ||
3667 | list_for_each_entry(snapshot, ®ion->snapshot_list, list) { | |
3668 | err = devlink_nl_region_snapshot_id_put(msg, devlink, snapshot); | |
3669 | if (err) | |
3670 | goto nla_put_failure; | |
3671 | } | |
3672 | ||
3673 | nla_nest_end(msg, snapshots_attr); | |
3674 | return 0; | |
3675 | ||
3676 | nla_put_failure: | |
3677 | nla_nest_cancel(msg, snapshots_attr); | |
3678 | return err; | |
3679 | } | |
3680 | ||
d8db7ea5 AV |
3681 | static int devlink_nl_region_fill(struct sk_buff *msg, struct devlink *devlink, |
3682 | enum devlink_command cmd, u32 portid, | |
3683 | u32 seq, int flags, | |
3684 | struct devlink_region *region) | |
3685 | { | |
3686 | void *hdr; | |
3687 | int err; | |
3688 | ||
3689 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
3690 | if (!hdr) | |
3691 | return -EMSGSIZE; | |
3692 | ||
3693 | err = devlink_nl_put_handle(msg, devlink); | |
3694 | if (err) | |
3695 | goto nla_put_failure; | |
3696 | ||
e8937681 | 3697 | err = nla_put_string(msg, DEVLINK_ATTR_REGION_NAME, region->ops->name); |
d8db7ea5 AV |
3698 | if (err) |
3699 | goto nla_put_failure; | |
3700 | ||
3701 | err = nla_put_u64_64bit(msg, DEVLINK_ATTR_REGION_SIZE, | |
3702 | region->size, | |
3703 | DEVLINK_ATTR_PAD); | |
3704 | if (err) | |
3705 | goto nla_put_failure; | |
3706 | ||
a006d467 AV |
3707 | err = devlink_nl_region_snapshots_id_put(msg, devlink, region); |
3708 | if (err) | |
3709 | goto nla_put_failure; | |
3710 | ||
d8db7ea5 AV |
3711 | genlmsg_end(msg, hdr); |
3712 | return 0; | |
3713 | ||
3714 | nla_put_failure: | |
3715 | genlmsg_cancel(msg, hdr); | |
3716 | return err; | |
3717 | } | |
3718 | ||
866319bb AV |
3719 | static void devlink_nl_region_notify(struct devlink_region *region, |
3720 | struct devlink_snapshot *snapshot, | |
3721 | enum devlink_command cmd) | |
3722 | { | |
3723 | struct devlink *devlink = region->devlink; | |
3724 | struct sk_buff *msg; | |
3725 | void *hdr; | |
3726 | int err; | |
3727 | ||
3728 | WARN_ON(cmd != DEVLINK_CMD_REGION_NEW && cmd != DEVLINK_CMD_REGION_DEL); | |
3729 | ||
3730 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
3731 | if (!msg) | |
3732 | return; | |
3733 | ||
3734 | hdr = genlmsg_put(msg, 0, 0, &devlink_nl_family, 0, cmd); | |
3735 | if (!hdr) | |
3736 | goto out_free_msg; | |
3737 | ||
3738 | err = devlink_nl_put_handle(msg, devlink); | |
3739 | if (err) | |
3740 | goto out_cancel_msg; | |
3741 | ||
3742 | err = nla_put_string(msg, DEVLINK_ATTR_REGION_NAME, | |
e8937681 | 3743 | region->ops->name); |
866319bb AV |
3744 | if (err) |
3745 | goto out_cancel_msg; | |
3746 | ||
3747 | if (snapshot) { | |
3748 | err = nla_put_u32(msg, DEVLINK_ATTR_REGION_SNAPSHOT_ID, | |
3749 | snapshot->id); | |
3750 | if (err) | |
3751 | goto out_cancel_msg; | |
3752 | } else { | |
3753 | err = nla_put_u64_64bit(msg, DEVLINK_ATTR_REGION_SIZE, | |
3754 | region->size, DEVLINK_ATTR_PAD); | |
3755 | if (err) | |
3756 | goto out_cancel_msg; | |
3757 | } | |
3758 | genlmsg_end(msg, hdr); | |
3759 | ||
3760 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), | |
3761 | msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
3762 | ||
3763 | return; | |
3764 | ||
3765 | out_cancel_msg: | |
3766 | genlmsg_cancel(msg, hdr); | |
3767 | out_free_msg: | |
3768 | nlmsg_free(msg); | |
3769 | } | |
3770 | ||
12102436 JK |
3771 | /** |
3772 | * __devlink_snapshot_id_increment - Increment number of snapshots using an id | |
3773 | * @devlink: devlink instance | |
3774 | * @id: the snapshot id | |
3775 | * | |
3776 | * Track when a new snapshot begins using an id. Load the count for the | |
3777 | * given id from the snapshot xarray, increment it, and store it back. | |
3778 | * | |
3779 | * Called when a new snapshot is created with the given id. | |
3780 | * | |
3781 | * The id *must* have been previously allocated by | |
3782 | * devlink_region_snapshot_id_get(). | |
3783 | * | |
3784 | * Returns 0 on success, or an error on failure. | |
3785 | */ | |
3786 | static int __devlink_snapshot_id_increment(struct devlink *devlink, u32 id) | |
3787 | { | |
3788 | unsigned long count; | |
3789 | void *p; | |
3790 | ||
3791 | lockdep_assert_held(&devlink->lock); | |
3792 | ||
3793 | p = xa_load(&devlink->snapshot_ids, id); | |
3794 | if (WARN_ON(!p)) | |
3795 | return -EINVAL; | |
3796 | ||
3797 | if (WARN_ON(!xa_is_value(p))) | |
3798 | return -EINVAL; | |
3799 | ||
3800 | count = xa_to_value(p); | |
3801 | count++; | |
3802 | ||
3803 | return xa_err(xa_store(&devlink->snapshot_ids, id, xa_mk_value(count), | |
3804 | GFP_KERNEL)); | |
3805 | } | |
3806 | ||
3807 | /** | |
3808 | * __devlink_snapshot_id_decrement - Decrease number of snapshots using an id | |
3809 | * @devlink: devlink instance | |
3810 | * @id: the snapshot id | |
3811 | * | |
3812 | * Track when a snapshot is deleted and stops using an id. Load the count | |
3813 | * for the given id from the snapshot xarray, decrement it, and store it | |
3814 | * back. | |
3815 | * | |
3816 | * If the count reaches zero, erase this id from the xarray, freeing it | |
3817 | * up for future re-use by devlink_region_snapshot_id_get(). | |
3818 | * | |
3819 | * Called when a snapshot using the given id is deleted, and when the | |
3820 | * initial allocator of the id is finished using it. | |
3821 | */ | |
3822 | static void __devlink_snapshot_id_decrement(struct devlink *devlink, u32 id) | |
3823 | { | |
3824 | unsigned long count; | |
3825 | void *p; | |
3826 | ||
3827 | lockdep_assert_held(&devlink->lock); | |
3828 | ||
3829 | p = xa_load(&devlink->snapshot_ids, id); | |
3830 | if (WARN_ON(!p)) | |
3831 | return; | |
3832 | ||
3833 | if (WARN_ON(!xa_is_value(p))) | |
3834 | return; | |
3835 | ||
3836 | count = xa_to_value(p); | |
3837 | ||
3838 | if (count > 1) { | |
3839 | count--; | |
3840 | xa_store(&devlink->snapshot_ids, id, xa_mk_value(count), | |
3841 | GFP_KERNEL); | |
3842 | } else { | |
3843 | /* If this was the last user, we can erase this id */ | |
3844 | xa_erase(&devlink->snapshot_ids, id); | |
3845 | } | |
3846 | } | |
3847 | ||
b9a17abf JK |
3848 | /** |
3849 | * __devlink_snapshot_id_insert - Insert a specific snapshot ID | |
3850 | * @devlink: devlink instance | |
3851 | * @id: the snapshot id | |
3852 | * | |
3853 | * Mark the given snapshot id as used by inserting a zero value into the | |
3854 | * snapshot xarray. | |
3855 | * | |
3856 | * This must be called while holding the devlink instance lock. Unlike | |
3857 | * devlink_snapshot_id_get, the initial reference count is zero, not one. | |
3858 | * It is expected that the id will immediately be used before | |
3859 | * releasing the devlink instance lock. | |
3860 | * | |
3861 | * Returns zero on success, or an error code if the snapshot id could not | |
3862 | * be inserted. | |
3863 | */ | |
3864 | static int __devlink_snapshot_id_insert(struct devlink *devlink, u32 id) | |
3865 | { | |
3866 | lockdep_assert_held(&devlink->lock); | |
3867 | ||
3868 | if (WARN_ON(xa_load(&devlink->snapshot_ids, id))) | |
3869 | return -EEXIST; | |
3870 | ||
3871 | return xa_err(xa_store(&devlink->snapshot_ids, id, xa_mk_value(0), | |
3872 | GFP_KERNEL)); | |
3873 | } | |
3874 | ||
7000108f JK |
3875 | /** |
3876 | * __devlink_region_snapshot_id_get - get snapshot ID | |
3877 | * @devlink: devlink instance | |
7ef19d3b | 3878 | * @id: storage to return snapshot id |
7000108f | 3879 | * |
7ef19d3b JK |
3880 | * Allocates a new snapshot id. Returns zero on success, or a negative |
3881 | * error on failure. Must be called while holding the devlink instance | |
3882 | * lock. | |
12102436 JK |
3883 | * |
3884 | * Snapshot IDs are tracked using an xarray which stores the number of | |
3885 | * users of the snapshot id. | |
3886 | * | |
3887 | * Note that the caller of this function counts as a 'user', in order to | |
3888 | * avoid race conditions. The caller must release its hold on the | |
3889 | * snapshot by using devlink_region_snapshot_id_put. | |
7000108f | 3890 | */ |
7ef19d3b | 3891 | static int __devlink_region_snapshot_id_get(struct devlink *devlink, u32 *id) |
7000108f JK |
3892 | { |
3893 | lockdep_assert_held(&devlink->lock); | |
7ef19d3b | 3894 | |
12102436 JK |
3895 | return xa_alloc(&devlink->snapshot_ids, id, xa_mk_value(1), |
3896 | xa_limit_32b, GFP_KERNEL); | |
7000108f JK |
3897 | } |
3898 | ||
cf80faee JK |
3899 | /** |
3900 | * __devlink_region_snapshot_create - create a new snapshot | |
3901 | * This will add a new snapshot of a region. The snapshot | |
3902 | * will be stored on the region struct and can be accessed | |
3903 | * from devlink. This is useful for future analyses of snapshots. | |
3904 | * Multiple snapshots can be created on a region. | |
3905 | * The @snapshot_id should be obtained using the getter function. | |
3906 | * | |
3907 | * Must be called only while holding the devlink instance lock. | |
3908 | * | |
3909 | * @region: devlink region of the snapshot | |
3910 | * @data: snapshot data | |
3911 | * @snapshot_id: snapshot id to be created | |
3912 | */ | |
3913 | static int | |
3914 | __devlink_region_snapshot_create(struct devlink_region *region, | |
3915 | u8 *data, u32 snapshot_id) | |
3916 | { | |
3917 | struct devlink *devlink = region->devlink; | |
3918 | struct devlink_snapshot *snapshot; | |
12102436 | 3919 | int err; |
cf80faee JK |
3920 | |
3921 | lockdep_assert_held(&devlink->lock); | |
3922 | ||
3923 | /* check if region can hold one more snapshot */ | |
3924 | if (region->cur_snapshots == region->max_snapshots) | |
47a39f61 | 3925 | return -ENOSPC; |
cf80faee JK |
3926 | |
3927 | if (devlink_region_snapshot_get_by_id(region, snapshot_id)) | |
3928 | return -EEXIST; | |
3929 | ||
3930 | snapshot = kzalloc(sizeof(*snapshot), GFP_KERNEL); | |
3931 | if (!snapshot) | |
3932 | return -ENOMEM; | |
3933 | ||
12102436 JK |
3934 | err = __devlink_snapshot_id_increment(devlink, snapshot_id); |
3935 | if (err) | |
3936 | goto err_snapshot_id_increment; | |
3937 | ||
cf80faee JK |
3938 | snapshot->id = snapshot_id; |
3939 | snapshot->region = region; | |
3940 | snapshot->data = data; | |
3941 | ||
3942 | list_add_tail(&snapshot->list, ®ion->snapshot_list); | |
3943 | ||
3944 | region->cur_snapshots++; | |
3945 | ||
3946 | devlink_nl_region_notify(region, snapshot, DEVLINK_CMD_REGION_NEW); | |
3947 | return 0; | |
12102436 JK |
3948 | |
3949 | err_snapshot_id_increment: | |
3950 | kfree(snapshot); | |
3951 | return err; | |
cf80faee JK |
3952 | } |
3953 | ||
92b49822 JP |
3954 | static void devlink_region_snapshot_del(struct devlink_region *region, |
3955 | struct devlink_snapshot *snapshot) | |
3956 | { | |
12102436 JK |
3957 | struct devlink *devlink = region->devlink; |
3958 | ||
3959 | lockdep_assert_held(&devlink->lock); | |
3960 | ||
92b49822 JP |
3961 | devlink_nl_region_notify(region, snapshot, DEVLINK_CMD_REGION_DEL); |
3962 | region->cur_snapshots--; | |
3963 | list_del(&snapshot->list); | |
a0a09f6b | 3964 | region->ops->destructor(snapshot->data); |
12102436 | 3965 | __devlink_snapshot_id_decrement(devlink, snapshot->id); |
92b49822 JP |
3966 | kfree(snapshot); |
3967 | } | |
3968 | ||
d8db7ea5 AV |
3969 | static int devlink_nl_cmd_region_get_doit(struct sk_buff *skb, |
3970 | struct genl_info *info) | |
3971 | { | |
3972 | struct devlink *devlink = info->user_ptr[0]; | |
3973 | struct devlink_region *region; | |
3974 | const char *region_name; | |
3975 | struct sk_buff *msg; | |
3976 | int err; | |
3977 | ||
3978 | if (!info->attrs[DEVLINK_ATTR_REGION_NAME]) | |
3979 | return -EINVAL; | |
3980 | ||
3981 | region_name = nla_data(info->attrs[DEVLINK_ATTR_REGION_NAME]); | |
3982 | region = devlink_region_get_by_name(devlink, region_name); | |
3983 | if (!region) | |
3984 | return -EINVAL; | |
3985 | ||
3986 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
3987 | if (!msg) | |
3988 | return -ENOMEM; | |
3989 | ||
3990 | err = devlink_nl_region_fill(msg, devlink, DEVLINK_CMD_REGION_GET, | |
3991 | info->snd_portid, info->snd_seq, 0, | |
3992 | region); | |
3993 | if (err) { | |
3994 | nlmsg_free(msg); | |
3995 | return err; | |
3996 | } | |
3997 | ||
3998 | return genlmsg_reply(msg, info); | |
3999 | } | |
4000 | ||
4001 | static int devlink_nl_cmd_region_get_dumpit(struct sk_buff *msg, | |
4002 | struct netlink_callback *cb) | |
4003 | { | |
4004 | struct devlink_region *region; | |
4005 | struct devlink *devlink; | |
4006 | int start = cb->args[0]; | |
4007 | int idx = 0; | |
4008 | int err; | |
4009 | ||
4010 | mutex_lock(&devlink_mutex); | |
4011 | list_for_each_entry(devlink, &devlink_list, list) { | |
4012 | if (!net_eq(devlink_net(devlink), sock_net(msg->sk))) | |
4013 | continue; | |
4014 | ||
4015 | mutex_lock(&devlink->lock); | |
4016 | list_for_each_entry(region, &devlink->region_list, list) { | |
4017 | if (idx < start) { | |
4018 | idx++; | |
4019 | continue; | |
4020 | } | |
4021 | err = devlink_nl_region_fill(msg, devlink, | |
4022 | DEVLINK_CMD_REGION_GET, | |
4023 | NETLINK_CB(cb->skb).portid, | |
4024 | cb->nlh->nlmsg_seq, | |
4025 | NLM_F_MULTI, region); | |
4026 | if (err) { | |
4027 | mutex_unlock(&devlink->lock); | |
4028 | goto out; | |
4029 | } | |
4030 | idx++; | |
4031 | } | |
4032 | mutex_unlock(&devlink->lock); | |
4033 | } | |
4034 | out: | |
4035 | mutex_unlock(&devlink_mutex); | |
4036 | cb->args[0] = idx; | |
4037 | return msg->len; | |
4038 | } | |
4039 | ||
866319bb AV |
4040 | static int devlink_nl_cmd_region_del(struct sk_buff *skb, |
4041 | struct genl_info *info) | |
4042 | { | |
4043 | struct devlink *devlink = info->user_ptr[0]; | |
4044 | struct devlink_snapshot *snapshot; | |
4045 | struct devlink_region *region; | |
4046 | const char *region_name; | |
4047 | u32 snapshot_id; | |
4048 | ||
4049 | if (!info->attrs[DEVLINK_ATTR_REGION_NAME] || | |
4050 | !info->attrs[DEVLINK_ATTR_REGION_SNAPSHOT_ID]) | |
4051 | return -EINVAL; | |
4052 | ||
4053 | region_name = nla_data(info->attrs[DEVLINK_ATTR_REGION_NAME]); | |
4054 | snapshot_id = nla_get_u32(info->attrs[DEVLINK_ATTR_REGION_SNAPSHOT_ID]); | |
4055 | ||
4056 | region = devlink_region_get_by_name(devlink, region_name); | |
4057 | if (!region) | |
4058 | return -EINVAL; | |
4059 | ||
4060 | snapshot = devlink_region_snapshot_get_by_id(region, snapshot_id); | |
4061 | if (!snapshot) | |
4062 | return -EINVAL; | |
4063 | ||
92b49822 | 4064 | devlink_region_snapshot_del(region, snapshot); |
866319bb AV |
4065 | return 0; |
4066 | } | |
4067 | ||
b9a17abf JK |
4068 | static int |
4069 | devlink_nl_cmd_region_new(struct sk_buff *skb, struct genl_info *info) | |
4070 | { | |
4071 | struct devlink *devlink = info->user_ptr[0]; | |
4072 | struct devlink_region *region; | |
4073 | const char *region_name; | |
4074 | u32 snapshot_id; | |
4075 | u8 *data; | |
4076 | int err; | |
4077 | ||
4078 | if (!info->attrs[DEVLINK_ATTR_REGION_NAME]) { | |
4079 | NL_SET_ERR_MSG_MOD(info->extack, "No region name provided"); | |
4080 | return -EINVAL; | |
4081 | } | |
4082 | ||
4083 | if (!info->attrs[DEVLINK_ATTR_REGION_SNAPSHOT_ID]) { | |
4084 | NL_SET_ERR_MSG_MOD(info->extack, "No snapshot id provided"); | |
4085 | return -EINVAL; | |
4086 | } | |
4087 | ||
4088 | region_name = nla_data(info->attrs[DEVLINK_ATTR_REGION_NAME]); | |
4089 | region = devlink_region_get_by_name(devlink, region_name); | |
4090 | if (!region) { | |
4091 | NL_SET_ERR_MSG_MOD(info->extack, "The requested region does not exist"); | |
4092 | return -EINVAL; | |
4093 | } | |
4094 | ||
4095 | if (!region->ops->snapshot) { | |
4096 | NL_SET_ERR_MSG_MOD(info->extack, "The requested region does not support taking an immediate snapshot"); | |
4097 | return -EOPNOTSUPP; | |
4098 | } | |
4099 | ||
4100 | if (region->cur_snapshots == region->max_snapshots) { | |
4101 | NL_SET_ERR_MSG_MOD(info->extack, "The region has reached the maximum number of stored snapshots"); | |
4102 | return -ENOSPC; | |
4103 | } | |
4104 | ||
4105 | snapshot_id = nla_get_u32(info->attrs[DEVLINK_ATTR_REGION_SNAPSHOT_ID]); | |
4106 | ||
4107 | if (devlink_region_snapshot_get_by_id(region, snapshot_id)) { | |
4108 | NL_SET_ERR_MSG_MOD(info->extack, "The requested snapshot id is already in use"); | |
4109 | return -EEXIST; | |
4110 | } | |
4111 | ||
4112 | err = __devlink_snapshot_id_insert(devlink, snapshot_id); | |
4113 | if (err) | |
4114 | return err; | |
4115 | ||
4116 | err = region->ops->snapshot(devlink, info->extack, &data); | |
4117 | if (err) | |
4118 | goto err_snapshot_capture; | |
4119 | ||
4120 | err = __devlink_region_snapshot_create(region, data, snapshot_id); | |
4121 | if (err) | |
4122 | goto err_snapshot_create; | |
4123 | ||
4124 | return 0; | |
4125 | ||
4126 | err_snapshot_create: | |
4127 | region->ops->destructor(data); | |
4128 | err_snapshot_capture: | |
4129 | __devlink_snapshot_id_decrement(devlink, snapshot_id); | |
4130 | return err; | |
4131 | } | |
4132 | ||
4e54795a AV |
4133 | static int devlink_nl_cmd_region_read_chunk_fill(struct sk_buff *msg, |
4134 | struct devlink *devlink, | |
4135 | u8 *chunk, u32 chunk_size, | |
4136 | u64 addr) | |
4137 | { | |
4138 | struct nlattr *chunk_attr; | |
4139 | int err; | |
4140 | ||
ae0be8de | 4141 | chunk_attr = nla_nest_start_noflag(msg, DEVLINK_ATTR_REGION_CHUNK); |
4e54795a AV |
4142 | if (!chunk_attr) |
4143 | return -EINVAL; | |
4144 | ||
4145 | err = nla_put(msg, DEVLINK_ATTR_REGION_CHUNK_DATA, chunk_size, chunk); | |
4146 | if (err) | |
4147 | goto nla_put_failure; | |
4148 | ||
4149 | err = nla_put_u64_64bit(msg, DEVLINK_ATTR_REGION_CHUNK_ADDR, addr, | |
4150 | DEVLINK_ATTR_PAD); | |
4151 | if (err) | |
4152 | goto nla_put_failure; | |
4153 | ||
4154 | nla_nest_end(msg, chunk_attr); | |
4155 | return 0; | |
4156 | ||
4157 | nla_put_failure: | |
4158 | nla_nest_cancel(msg, chunk_attr); | |
4159 | return err; | |
4160 | } | |
4161 | ||
4162 | #define DEVLINK_REGION_READ_CHUNK_SIZE 256 | |
4163 | ||
4164 | static int devlink_nl_region_read_snapshot_fill(struct sk_buff *skb, | |
4165 | struct devlink *devlink, | |
4166 | struct devlink_region *region, | |
4167 | struct nlattr **attrs, | |
4168 | u64 start_offset, | |
4169 | u64 end_offset, | |
4170 | bool dump, | |
4171 | u64 *new_offset) | |
4172 | { | |
4173 | struct devlink_snapshot *snapshot; | |
4174 | u64 curr_offset = start_offset; | |
4175 | u32 snapshot_id; | |
4176 | int err = 0; | |
4177 | ||
4178 | *new_offset = start_offset; | |
4179 | ||
4180 | snapshot_id = nla_get_u32(attrs[DEVLINK_ATTR_REGION_SNAPSHOT_ID]); | |
4181 | snapshot = devlink_region_snapshot_get_by_id(region, snapshot_id); | |
4182 | if (!snapshot) | |
4183 | return -EINVAL; | |
4184 | ||
3a5e5234 JP |
4185 | if (end_offset > region->size || dump) |
4186 | end_offset = region->size; | |
4e54795a AV |
4187 | |
4188 | while (curr_offset < end_offset) { | |
4189 | u32 data_size; | |
4190 | u8 *data; | |
4191 | ||
4192 | if (end_offset - curr_offset < DEVLINK_REGION_READ_CHUNK_SIZE) | |
4193 | data_size = end_offset - curr_offset; | |
4194 | else | |
4195 | data_size = DEVLINK_REGION_READ_CHUNK_SIZE; | |
4196 | ||
4197 | data = &snapshot->data[curr_offset]; | |
4198 | err = devlink_nl_cmd_region_read_chunk_fill(skb, devlink, | |
4199 | data, data_size, | |
4200 | curr_offset); | |
4201 | if (err) | |
4202 | break; | |
4203 | ||
4204 | curr_offset += data_size; | |
4205 | } | |
4206 | *new_offset = curr_offset; | |
4207 | ||
4208 | return err; | |
4209 | } | |
4210 | ||
4211 | static int devlink_nl_cmd_region_read_dumpit(struct sk_buff *skb, | |
4212 | struct netlink_callback *cb) | |
4213 | { | |
ee85da53 | 4214 | const struct genl_dumpit_info *info = genl_dumpit_info(cb); |
4e54795a | 4215 | u64 ret_offset, start_offset, end_offset = 0; |
ee85da53 | 4216 | struct nlattr **attrs = info->attrs; |
4e54795a AV |
4217 | struct devlink_region *region; |
4218 | struct nlattr *chunks_attr; | |
4219 | const char *region_name; | |
4220 | struct devlink *devlink; | |
4221 | bool dump = true; | |
4222 | void *hdr; | |
4223 | int err; | |
4224 | ||
4225 | start_offset = *((u64 *)&cb->args[0]); | |
4226 | ||
dac7c08f | 4227 | mutex_lock(&devlink_mutex); |
4e54795a | 4228 | devlink = devlink_get_from_attrs(sock_net(cb->skb->sk), attrs); |
fdd41ec2 PP |
4229 | if (IS_ERR(devlink)) { |
4230 | err = PTR_ERR(devlink); | |
dac7c08f | 4231 | goto out_dev; |
fdd41ec2 | 4232 | } |
4e54795a | 4233 | |
4e54795a AV |
4234 | mutex_lock(&devlink->lock); |
4235 | ||
4236 | if (!attrs[DEVLINK_ATTR_REGION_NAME] || | |
fdd41ec2 PP |
4237 | !attrs[DEVLINK_ATTR_REGION_SNAPSHOT_ID]) { |
4238 | err = -EINVAL; | |
4e54795a | 4239 | goto out_unlock; |
fdd41ec2 | 4240 | } |
4e54795a AV |
4241 | |
4242 | region_name = nla_data(attrs[DEVLINK_ATTR_REGION_NAME]); | |
4243 | region = devlink_region_get_by_name(devlink, region_name); | |
fdd41ec2 PP |
4244 | if (!region) { |
4245 | err = -EINVAL; | |
4e54795a | 4246 | goto out_unlock; |
fdd41ec2 | 4247 | } |
4e54795a | 4248 | |
d5b90e99 JK |
4249 | /* return 0 if there is no further data to read */ |
4250 | if (start_offset >= region->size) { | |
4251 | err = 0; | |
4252 | goto out_unlock; | |
4253 | } | |
4254 | ||
4e54795a AV |
4255 | hdr = genlmsg_put(skb, NETLINK_CB(cb->skb).portid, cb->nlh->nlmsg_seq, |
4256 | &devlink_nl_family, NLM_F_ACK | NLM_F_MULTI, | |
4257 | DEVLINK_CMD_REGION_READ); | |
fdd41ec2 PP |
4258 | if (!hdr) { |
4259 | err = -EMSGSIZE; | |
4e54795a | 4260 | goto out_unlock; |
fdd41ec2 | 4261 | } |
4e54795a AV |
4262 | |
4263 | err = devlink_nl_put_handle(skb, devlink); | |
4264 | if (err) | |
4265 | goto nla_put_failure; | |
4266 | ||
4267 | err = nla_put_string(skb, DEVLINK_ATTR_REGION_NAME, region_name); | |
4268 | if (err) | |
4269 | goto nla_put_failure; | |
4270 | ||
ae0be8de | 4271 | chunks_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_REGION_CHUNKS); |
fdd41ec2 PP |
4272 | if (!chunks_attr) { |
4273 | err = -EMSGSIZE; | |
4e54795a | 4274 | goto nla_put_failure; |
fdd41ec2 | 4275 | } |
4e54795a AV |
4276 | |
4277 | if (attrs[DEVLINK_ATTR_REGION_CHUNK_ADDR] && | |
4278 | attrs[DEVLINK_ATTR_REGION_CHUNK_LEN]) { | |
4279 | if (!start_offset) | |
4280 | start_offset = | |
4281 | nla_get_u64(attrs[DEVLINK_ATTR_REGION_CHUNK_ADDR]); | |
4282 | ||
4283 | end_offset = nla_get_u64(attrs[DEVLINK_ATTR_REGION_CHUNK_ADDR]); | |
4284 | end_offset += nla_get_u64(attrs[DEVLINK_ATTR_REGION_CHUNK_LEN]); | |
4285 | dump = false; | |
610a9346 JK |
4286 | |
4287 | if (start_offset == end_offset) { | |
4288 | err = 0; | |
4289 | goto nla_put_failure; | |
4290 | } | |
4e54795a AV |
4291 | } |
4292 | ||
4293 | err = devlink_nl_region_read_snapshot_fill(skb, devlink, | |
4294 | region, attrs, | |
4295 | start_offset, | |
4296 | end_offset, dump, | |
4297 | &ret_offset); | |
4298 | ||
4299 | if (err && err != -EMSGSIZE) | |
4300 | goto nla_put_failure; | |
4301 | ||
4302 | /* Check if there was any progress done to prevent infinite loop */ | |
fdd41ec2 PP |
4303 | if (ret_offset == start_offset) { |
4304 | err = -EINVAL; | |
4e54795a | 4305 | goto nla_put_failure; |
fdd41ec2 | 4306 | } |
4e54795a AV |
4307 | |
4308 | *((u64 *)&cb->args[0]) = ret_offset; | |
4309 | ||
4310 | nla_nest_end(skb, chunks_attr); | |
4311 | genlmsg_end(skb, hdr); | |
4312 | mutex_unlock(&devlink->lock); | |
4313 | mutex_unlock(&devlink_mutex); | |
4314 | ||
4315 | return skb->len; | |
4316 | ||
4317 | nla_put_failure: | |
4318 | genlmsg_cancel(skb, hdr); | |
4319 | out_unlock: | |
4320 | mutex_unlock(&devlink->lock); | |
dac7c08f | 4321 | out_dev: |
4e54795a | 4322 | mutex_unlock(&devlink_mutex); |
fdd41ec2 | 4323 | return err; |
4e54795a AV |
4324 | } |
4325 | ||
f9cf2288 JK |
4326 | struct devlink_info_req { |
4327 | struct sk_buff *msg; | |
4328 | }; | |
4329 | ||
4330 | int devlink_info_driver_name_put(struct devlink_info_req *req, const char *name) | |
4331 | { | |
4332 | return nla_put_string(req->msg, DEVLINK_ATTR_INFO_DRIVER_NAME, name); | |
4333 | } | |
4334 | EXPORT_SYMBOL_GPL(devlink_info_driver_name_put); | |
4335 | ||
4336 | int devlink_info_serial_number_put(struct devlink_info_req *req, const char *sn) | |
4337 | { | |
4338 | return nla_put_string(req->msg, DEVLINK_ATTR_INFO_SERIAL_NUMBER, sn); | |
4339 | } | |
4340 | EXPORT_SYMBOL_GPL(devlink_info_serial_number_put); | |
4341 | ||
fc6fae7d JK |
4342 | static int devlink_info_version_put(struct devlink_info_req *req, int attr, |
4343 | const char *version_name, | |
4344 | const char *version_value) | |
4345 | { | |
4346 | struct nlattr *nest; | |
4347 | int err; | |
4348 | ||
ae0be8de | 4349 | nest = nla_nest_start_noflag(req->msg, attr); |
fc6fae7d JK |
4350 | if (!nest) |
4351 | return -EMSGSIZE; | |
4352 | ||
4353 | err = nla_put_string(req->msg, DEVLINK_ATTR_INFO_VERSION_NAME, | |
4354 | version_name); | |
4355 | if (err) | |
4356 | goto nla_put_failure; | |
4357 | ||
4358 | err = nla_put_string(req->msg, DEVLINK_ATTR_INFO_VERSION_VALUE, | |
4359 | version_value); | |
4360 | if (err) | |
4361 | goto nla_put_failure; | |
4362 | ||
4363 | nla_nest_end(req->msg, nest); | |
4364 | ||
4365 | return 0; | |
4366 | ||
4367 | nla_put_failure: | |
4368 | nla_nest_cancel(req->msg, nest); | |
4369 | return err; | |
4370 | } | |
4371 | ||
4372 | int devlink_info_version_fixed_put(struct devlink_info_req *req, | |
4373 | const char *version_name, | |
4374 | const char *version_value) | |
4375 | { | |
4376 | return devlink_info_version_put(req, DEVLINK_ATTR_INFO_VERSION_FIXED, | |
4377 | version_name, version_value); | |
4378 | } | |
4379 | EXPORT_SYMBOL_GPL(devlink_info_version_fixed_put); | |
4380 | ||
4381 | int devlink_info_version_stored_put(struct devlink_info_req *req, | |
4382 | const char *version_name, | |
4383 | const char *version_value) | |
4384 | { | |
4385 | return devlink_info_version_put(req, DEVLINK_ATTR_INFO_VERSION_STORED, | |
4386 | version_name, version_value); | |
4387 | } | |
4388 | EXPORT_SYMBOL_GPL(devlink_info_version_stored_put); | |
4389 | ||
4390 | int devlink_info_version_running_put(struct devlink_info_req *req, | |
4391 | const char *version_name, | |
4392 | const char *version_value) | |
4393 | { | |
4394 | return devlink_info_version_put(req, DEVLINK_ATTR_INFO_VERSION_RUNNING, | |
4395 | version_name, version_value); | |
4396 | } | |
4397 | EXPORT_SYMBOL_GPL(devlink_info_version_running_put); | |
4398 | ||
f9cf2288 JK |
4399 | static int |
4400 | devlink_nl_info_fill(struct sk_buff *msg, struct devlink *devlink, | |
4401 | enum devlink_command cmd, u32 portid, | |
4402 | u32 seq, int flags, struct netlink_ext_ack *extack) | |
4403 | { | |
4404 | struct devlink_info_req req; | |
4405 | void *hdr; | |
4406 | int err; | |
4407 | ||
4408 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
4409 | if (!hdr) | |
4410 | return -EMSGSIZE; | |
4411 | ||
4412 | err = -EMSGSIZE; | |
4413 | if (devlink_nl_put_handle(msg, devlink)) | |
4414 | goto err_cancel_msg; | |
4415 | ||
4416 | req.msg = msg; | |
4417 | err = devlink->ops->info_get(devlink, &req, extack); | |
4418 | if (err) | |
4419 | goto err_cancel_msg; | |
4420 | ||
4421 | genlmsg_end(msg, hdr); | |
4422 | return 0; | |
4423 | ||
4424 | err_cancel_msg: | |
4425 | genlmsg_cancel(msg, hdr); | |
4426 | return err; | |
4427 | } | |
4428 | ||
4429 | static int devlink_nl_cmd_info_get_doit(struct sk_buff *skb, | |
4430 | struct genl_info *info) | |
4431 | { | |
4432 | struct devlink *devlink = info->user_ptr[0]; | |
4433 | struct sk_buff *msg; | |
4434 | int err; | |
4435 | ||
be6fe1d8 | 4436 | if (!devlink->ops->info_get) |
f9cf2288 JK |
4437 | return -EOPNOTSUPP; |
4438 | ||
4439 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
4440 | if (!msg) | |
4441 | return -ENOMEM; | |
4442 | ||
4443 | err = devlink_nl_info_fill(msg, devlink, DEVLINK_CMD_INFO_GET, | |
4444 | info->snd_portid, info->snd_seq, 0, | |
4445 | info->extack); | |
4446 | if (err) { | |
4447 | nlmsg_free(msg); | |
4448 | return err; | |
4449 | } | |
4450 | ||
4451 | return genlmsg_reply(msg, info); | |
4452 | } | |
4453 | ||
4454 | static int devlink_nl_cmd_info_get_dumpit(struct sk_buff *msg, | |
4455 | struct netlink_callback *cb) | |
4456 | { | |
4457 | struct devlink *devlink; | |
4458 | int start = cb->args[0]; | |
4459 | int idx = 0; | |
c62c2cfb | 4460 | int err = 0; |
f9cf2288 JK |
4461 | |
4462 | mutex_lock(&devlink_mutex); | |
4463 | list_for_each_entry(devlink, &devlink_list, list) { | |
4464 | if (!net_eq(devlink_net(devlink), sock_net(msg->sk))) | |
4465 | continue; | |
4466 | if (idx < start) { | |
4467 | idx++; | |
4468 | continue; | |
4469 | } | |
4470 | ||
c493b09b JP |
4471 | if (!devlink->ops->info_get) { |
4472 | idx++; | |
4473 | continue; | |
4474 | } | |
4475 | ||
f9cf2288 JK |
4476 | mutex_lock(&devlink->lock); |
4477 | err = devlink_nl_info_fill(msg, devlink, DEVLINK_CMD_INFO_GET, | |
4478 | NETLINK_CB(cb->skb).portid, | |
4479 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
4480 | cb->extack); | |
4481 | mutex_unlock(&devlink->lock); | |
93c2fcb0 | 4482 | if (err && err != -EOPNOTSUPP) |
f9cf2288 JK |
4483 | break; |
4484 | idx++; | |
4485 | } | |
4486 | mutex_unlock(&devlink_mutex); | |
4487 | ||
c62c2cfb JP |
4488 | if (err != -EMSGSIZE) |
4489 | return err; | |
4490 | ||
f9cf2288 JK |
4491 | cb->args[0] = idx; |
4492 | return msg->len; | |
4493 | } | |
4494 | ||
1db64e87 EBE |
4495 | struct devlink_fmsg_item { |
4496 | struct list_head list; | |
4497 | int attrtype; | |
4498 | u8 nla_type; | |
4499 | u16 len; | |
d2afb41a | 4500 | int value[]; |
1db64e87 EBE |
4501 | }; |
4502 | ||
4503 | struct devlink_fmsg { | |
4504 | struct list_head item_list; | |
573ed90a AL |
4505 | bool putting_binary; /* This flag forces enclosing of binary data |
4506 | * in an array brackets. It forces using | |
4507 | * of designated API: | |
4508 | * devlink_fmsg_binary_pair_nest_start() | |
4509 | * devlink_fmsg_binary_pair_nest_end() | |
4510 | */ | |
1db64e87 EBE |
4511 | }; |
4512 | ||
4513 | static struct devlink_fmsg *devlink_fmsg_alloc(void) | |
4514 | { | |
4515 | struct devlink_fmsg *fmsg; | |
4516 | ||
4517 | fmsg = kzalloc(sizeof(*fmsg), GFP_KERNEL); | |
4518 | if (!fmsg) | |
4519 | return NULL; | |
4520 | ||
4521 | INIT_LIST_HEAD(&fmsg->item_list); | |
4522 | ||
4523 | return fmsg; | |
4524 | } | |
4525 | ||
4526 | static void devlink_fmsg_free(struct devlink_fmsg *fmsg) | |
4527 | { | |
4528 | struct devlink_fmsg_item *item, *tmp; | |
4529 | ||
4530 | list_for_each_entry_safe(item, tmp, &fmsg->item_list, list) { | |
4531 | list_del(&item->list); | |
4532 | kfree(item); | |
4533 | } | |
4534 | kfree(fmsg); | |
4535 | } | |
4536 | ||
4537 | static int devlink_fmsg_nest_common(struct devlink_fmsg *fmsg, | |
4538 | int attrtype) | |
4539 | { | |
4540 | struct devlink_fmsg_item *item; | |
4541 | ||
4542 | item = kzalloc(sizeof(*item), GFP_KERNEL); | |
4543 | if (!item) | |
4544 | return -ENOMEM; | |
4545 | ||
4546 | item->attrtype = attrtype; | |
4547 | list_add_tail(&item->list, &fmsg->item_list); | |
4548 | ||
4549 | return 0; | |
4550 | } | |
4551 | ||
4552 | int devlink_fmsg_obj_nest_start(struct devlink_fmsg *fmsg) | |
4553 | { | |
573ed90a AL |
4554 | if (fmsg->putting_binary) |
4555 | return -EINVAL; | |
4556 | ||
1db64e87 EBE |
4557 | return devlink_fmsg_nest_common(fmsg, DEVLINK_ATTR_FMSG_OBJ_NEST_START); |
4558 | } | |
4559 | EXPORT_SYMBOL_GPL(devlink_fmsg_obj_nest_start); | |
4560 | ||
4561 | static int devlink_fmsg_nest_end(struct devlink_fmsg *fmsg) | |
4562 | { | |
573ed90a AL |
4563 | if (fmsg->putting_binary) |
4564 | return -EINVAL; | |
4565 | ||
1db64e87 EBE |
4566 | return devlink_fmsg_nest_common(fmsg, DEVLINK_ATTR_FMSG_NEST_END); |
4567 | } | |
4568 | ||
4569 | int devlink_fmsg_obj_nest_end(struct devlink_fmsg *fmsg) | |
4570 | { | |
573ed90a AL |
4571 | if (fmsg->putting_binary) |
4572 | return -EINVAL; | |
4573 | ||
1db64e87 EBE |
4574 | return devlink_fmsg_nest_end(fmsg); |
4575 | } | |
4576 | EXPORT_SYMBOL_GPL(devlink_fmsg_obj_nest_end); | |
4577 | ||
4578 | #define DEVLINK_FMSG_MAX_SIZE (GENLMSG_DEFAULT_SIZE - GENL_HDRLEN - NLA_HDRLEN) | |
4579 | ||
4580 | static int devlink_fmsg_put_name(struct devlink_fmsg *fmsg, const char *name) | |
4581 | { | |
4582 | struct devlink_fmsg_item *item; | |
4583 | ||
573ed90a AL |
4584 | if (fmsg->putting_binary) |
4585 | return -EINVAL; | |
4586 | ||
1db64e87 EBE |
4587 | if (strlen(name) + 1 > DEVLINK_FMSG_MAX_SIZE) |
4588 | return -EMSGSIZE; | |
4589 | ||
4590 | item = kzalloc(sizeof(*item) + strlen(name) + 1, GFP_KERNEL); | |
4591 | if (!item) | |
4592 | return -ENOMEM; | |
4593 | ||
4594 | item->nla_type = NLA_NUL_STRING; | |
4595 | item->len = strlen(name) + 1; | |
4596 | item->attrtype = DEVLINK_ATTR_FMSG_OBJ_NAME; | |
4597 | memcpy(&item->value, name, item->len); | |
4598 | list_add_tail(&item->list, &fmsg->item_list); | |
4599 | ||
4600 | return 0; | |
4601 | } | |
4602 | ||
4603 | int devlink_fmsg_pair_nest_start(struct devlink_fmsg *fmsg, const char *name) | |
4604 | { | |
4605 | int err; | |
4606 | ||
573ed90a AL |
4607 | if (fmsg->putting_binary) |
4608 | return -EINVAL; | |
4609 | ||
1db64e87 EBE |
4610 | err = devlink_fmsg_nest_common(fmsg, DEVLINK_ATTR_FMSG_PAIR_NEST_START); |
4611 | if (err) | |
4612 | return err; | |
4613 | ||
4614 | err = devlink_fmsg_put_name(fmsg, name); | |
4615 | if (err) | |
4616 | return err; | |
4617 | ||
4618 | return 0; | |
4619 | } | |
4620 | EXPORT_SYMBOL_GPL(devlink_fmsg_pair_nest_start); | |
4621 | ||
4622 | int devlink_fmsg_pair_nest_end(struct devlink_fmsg *fmsg) | |
4623 | { | |
573ed90a AL |
4624 | if (fmsg->putting_binary) |
4625 | return -EINVAL; | |
4626 | ||
1db64e87 EBE |
4627 | return devlink_fmsg_nest_end(fmsg); |
4628 | } | |
4629 | EXPORT_SYMBOL_GPL(devlink_fmsg_pair_nest_end); | |
4630 | ||
4631 | int devlink_fmsg_arr_pair_nest_start(struct devlink_fmsg *fmsg, | |
4632 | const char *name) | |
4633 | { | |
4634 | int err; | |
4635 | ||
573ed90a AL |
4636 | if (fmsg->putting_binary) |
4637 | return -EINVAL; | |
4638 | ||
1db64e87 EBE |
4639 | err = devlink_fmsg_pair_nest_start(fmsg, name); |
4640 | if (err) | |
4641 | return err; | |
4642 | ||
4643 | err = devlink_fmsg_nest_common(fmsg, DEVLINK_ATTR_FMSG_ARR_NEST_START); | |
4644 | if (err) | |
4645 | return err; | |
4646 | ||
4647 | return 0; | |
4648 | } | |
4649 | EXPORT_SYMBOL_GPL(devlink_fmsg_arr_pair_nest_start); | |
4650 | ||
4651 | int devlink_fmsg_arr_pair_nest_end(struct devlink_fmsg *fmsg) | |
4652 | { | |
4653 | int err; | |
4654 | ||
573ed90a AL |
4655 | if (fmsg->putting_binary) |
4656 | return -EINVAL; | |
4657 | ||
1db64e87 EBE |
4658 | err = devlink_fmsg_nest_end(fmsg); |
4659 | if (err) | |
4660 | return err; | |
4661 | ||
4662 | err = devlink_fmsg_nest_end(fmsg); | |
4663 | if (err) | |
4664 | return err; | |
4665 | ||
4666 | return 0; | |
4667 | } | |
4668 | EXPORT_SYMBOL_GPL(devlink_fmsg_arr_pair_nest_end); | |
4669 | ||
573ed90a AL |
4670 | int devlink_fmsg_binary_pair_nest_start(struct devlink_fmsg *fmsg, |
4671 | const char *name) | |
4672 | { | |
4673 | int err; | |
4674 | ||
4675 | err = devlink_fmsg_arr_pair_nest_start(fmsg, name); | |
4676 | if (err) | |
4677 | return err; | |
4678 | ||
4679 | fmsg->putting_binary = true; | |
4680 | return err; | |
4681 | } | |
4682 | EXPORT_SYMBOL_GPL(devlink_fmsg_binary_pair_nest_start); | |
4683 | ||
4684 | int devlink_fmsg_binary_pair_nest_end(struct devlink_fmsg *fmsg) | |
4685 | { | |
4686 | if (!fmsg->putting_binary) | |
4687 | return -EINVAL; | |
4688 | ||
4689 | fmsg->putting_binary = false; | |
4690 | return devlink_fmsg_arr_pair_nest_end(fmsg); | |
4691 | } | |
4692 | EXPORT_SYMBOL_GPL(devlink_fmsg_binary_pair_nest_end); | |
4693 | ||
1db64e87 EBE |
4694 | static int devlink_fmsg_put_value(struct devlink_fmsg *fmsg, |
4695 | const void *value, u16 value_len, | |
4696 | u8 value_nla_type) | |
4697 | { | |
4698 | struct devlink_fmsg_item *item; | |
4699 | ||
4700 | if (value_len > DEVLINK_FMSG_MAX_SIZE) | |
4701 | return -EMSGSIZE; | |
4702 | ||
4703 | item = kzalloc(sizeof(*item) + value_len, GFP_KERNEL); | |
4704 | if (!item) | |
4705 | return -ENOMEM; | |
4706 | ||
4707 | item->nla_type = value_nla_type; | |
4708 | item->len = value_len; | |
4709 | item->attrtype = DEVLINK_ATTR_FMSG_OBJ_VALUE_DATA; | |
4710 | memcpy(&item->value, value, item->len); | |
4711 | list_add_tail(&item->list, &fmsg->item_list); | |
4712 | ||
4713 | return 0; | |
4714 | } | |
4715 | ||
4716 | int devlink_fmsg_bool_put(struct devlink_fmsg *fmsg, bool value) | |
4717 | { | |
573ed90a AL |
4718 | if (fmsg->putting_binary) |
4719 | return -EINVAL; | |
4720 | ||
1db64e87 EBE |
4721 | return devlink_fmsg_put_value(fmsg, &value, sizeof(value), NLA_FLAG); |
4722 | } | |
4723 | EXPORT_SYMBOL_GPL(devlink_fmsg_bool_put); | |
4724 | ||
4725 | int devlink_fmsg_u8_put(struct devlink_fmsg *fmsg, u8 value) | |
4726 | { | |
573ed90a AL |
4727 | if (fmsg->putting_binary) |
4728 | return -EINVAL; | |
4729 | ||
1db64e87 EBE |
4730 | return devlink_fmsg_put_value(fmsg, &value, sizeof(value), NLA_U8); |
4731 | } | |
4732 | EXPORT_SYMBOL_GPL(devlink_fmsg_u8_put); | |
4733 | ||
4734 | int devlink_fmsg_u32_put(struct devlink_fmsg *fmsg, u32 value) | |
4735 | { | |
573ed90a AL |
4736 | if (fmsg->putting_binary) |
4737 | return -EINVAL; | |
4738 | ||
1db64e87 EBE |
4739 | return devlink_fmsg_put_value(fmsg, &value, sizeof(value), NLA_U32); |
4740 | } | |
4741 | EXPORT_SYMBOL_GPL(devlink_fmsg_u32_put); | |
4742 | ||
4743 | int devlink_fmsg_u64_put(struct devlink_fmsg *fmsg, u64 value) | |
4744 | { | |
573ed90a AL |
4745 | if (fmsg->putting_binary) |
4746 | return -EINVAL; | |
4747 | ||
1db64e87 EBE |
4748 | return devlink_fmsg_put_value(fmsg, &value, sizeof(value), NLA_U64); |
4749 | } | |
4750 | EXPORT_SYMBOL_GPL(devlink_fmsg_u64_put); | |
4751 | ||
4752 | int devlink_fmsg_string_put(struct devlink_fmsg *fmsg, const char *value) | |
4753 | { | |
573ed90a AL |
4754 | if (fmsg->putting_binary) |
4755 | return -EINVAL; | |
4756 | ||
1db64e87 EBE |
4757 | return devlink_fmsg_put_value(fmsg, value, strlen(value) + 1, |
4758 | NLA_NUL_STRING); | |
4759 | } | |
4760 | EXPORT_SYMBOL_GPL(devlink_fmsg_string_put); | |
4761 | ||
573ed90a AL |
4762 | int devlink_fmsg_binary_put(struct devlink_fmsg *fmsg, const void *value, |
4763 | u16 value_len) | |
1db64e87 | 4764 | { |
573ed90a AL |
4765 | if (!fmsg->putting_binary) |
4766 | return -EINVAL; | |
4767 | ||
1db64e87 EBE |
4768 | return devlink_fmsg_put_value(fmsg, value, value_len, NLA_BINARY); |
4769 | } | |
573ed90a | 4770 | EXPORT_SYMBOL_GPL(devlink_fmsg_binary_put); |
1db64e87 EBE |
4771 | |
4772 | int devlink_fmsg_bool_pair_put(struct devlink_fmsg *fmsg, const char *name, | |
4773 | bool value) | |
4774 | { | |
4775 | int err; | |
4776 | ||
4777 | err = devlink_fmsg_pair_nest_start(fmsg, name); | |
4778 | if (err) | |
4779 | return err; | |
4780 | ||
4781 | err = devlink_fmsg_bool_put(fmsg, value); | |
4782 | if (err) | |
4783 | return err; | |
4784 | ||
4785 | err = devlink_fmsg_pair_nest_end(fmsg); | |
4786 | if (err) | |
4787 | return err; | |
4788 | ||
4789 | return 0; | |
4790 | } | |
4791 | EXPORT_SYMBOL_GPL(devlink_fmsg_bool_pair_put); | |
4792 | ||
4793 | int devlink_fmsg_u8_pair_put(struct devlink_fmsg *fmsg, const char *name, | |
4794 | u8 value) | |
4795 | { | |
4796 | int err; | |
4797 | ||
4798 | err = devlink_fmsg_pair_nest_start(fmsg, name); | |
4799 | if (err) | |
4800 | return err; | |
4801 | ||
4802 | err = devlink_fmsg_u8_put(fmsg, value); | |
4803 | if (err) | |
4804 | return err; | |
4805 | ||
4806 | err = devlink_fmsg_pair_nest_end(fmsg); | |
4807 | if (err) | |
4808 | return err; | |
4809 | ||
4810 | return 0; | |
4811 | } | |
4812 | EXPORT_SYMBOL_GPL(devlink_fmsg_u8_pair_put); | |
4813 | ||
4814 | int devlink_fmsg_u32_pair_put(struct devlink_fmsg *fmsg, const char *name, | |
4815 | u32 value) | |
4816 | { | |
4817 | int err; | |
4818 | ||
4819 | err = devlink_fmsg_pair_nest_start(fmsg, name); | |
4820 | if (err) | |
4821 | return err; | |
4822 | ||
4823 | err = devlink_fmsg_u32_put(fmsg, value); | |
4824 | if (err) | |
4825 | return err; | |
4826 | ||
4827 | err = devlink_fmsg_pair_nest_end(fmsg); | |
4828 | if (err) | |
4829 | return err; | |
4830 | ||
4831 | return 0; | |
4832 | } | |
4833 | EXPORT_SYMBOL_GPL(devlink_fmsg_u32_pair_put); | |
4834 | ||
4835 | int devlink_fmsg_u64_pair_put(struct devlink_fmsg *fmsg, const char *name, | |
4836 | u64 value) | |
4837 | { | |
4838 | int err; | |
4839 | ||
4840 | err = devlink_fmsg_pair_nest_start(fmsg, name); | |
4841 | if (err) | |
4842 | return err; | |
4843 | ||
4844 | err = devlink_fmsg_u64_put(fmsg, value); | |
4845 | if (err) | |
4846 | return err; | |
4847 | ||
4848 | err = devlink_fmsg_pair_nest_end(fmsg); | |
4849 | if (err) | |
4850 | return err; | |
4851 | ||
4852 | return 0; | |
4853 | } | |
4854 | EXPORT_SYMBOL_GPL(devlink_fmsg_u64_pair_put); | |
4855 | ||
4856 | int devlink_fmsg_string_pair_put(struct devlink_fmsg *fmsg, const char *name, | |
4857 | const char *value) | |
4858 | { | |
4859 | int err; | |
4860 | ||
4861 | err = devlink_fmsg_pair_nest_start(fmsg, name); | |
4862 | if (err) | |
4863 | return err; | |
4864 | ||
4865 | err = devlink_fmsg_string_put(fmsg, value); | |
4866 | if (err) | |
4867 | return err; | |
4868 | ||
4869 | err = devlink_fmsg_pair_nest_end(fmsg); | |
4870 | if (err) | |
4871 | return err; | |
4872 | ||
4873 | return 0; | |
4874 | } | |
4875 | EXPORT_SYMBOL_GPL(devlink_fmsg_string_pair_put); | |
4876 | ||
4877 | int devlink_fmsg_binary_pair_put(struct devlink_fmsg *fmsg, const char *name, | |
e2cde864 | 4878 | const void *value, u32 value_len) |
1db64e87 | 4879 | { |
e2cde864 | 4880 | u32 data_size; |
573ed90a | 4881 | int end_err; |
e2cde864 | 4882 | u32 offset; |
1db64e87 EBE |
4883 | int err; |
4884 | ||
573ed90a | 4885 | err = devlink_fmsg_binary_pair_nest_start(fmsg, name); |
1db64e87 EBE |
4886 | if (err) |
4887 | return err; | |
4888 | ||
e2cde864 AL |
4889 | for (offset = 0; offset < value_len; offset += data_size) { |
4890 | data_size = value_len - offset; | |
4891 | if (data_size > DEVLINK_FMSG_MAX_SIZE) | |
4892 | data_size = DEVLINK_FMSG_MAX_SIZE; | |
4893 | err = devlink_fmsg_binary_put(fmsg, value + offset, data_size); | |
4894 | if (err) | |
573ed90a AL |
4895 | break; |
4896 | /* Exit from loop with a break (instead of | |
4897 | * return) to make sure putting_binary is turned off in | |
4898 | * devlink_fmsg_binary_pair_nest_end | |
4899 | */ | |
e2cde864 | 4900 | } |
1db64e87 | 4901 | |
573ed90a AL |
4902 | end_err = devlink_fmsg_binary_pair_nest_end(fmsg); |
4903 | if (end_err) | |
4904 | err = end_err; | |
1db64e87 | 4905 | |
573ed90a | 4906 | return err; |
1db64e87 EBE |
4907 | } |
4908 | EXPORT_SYMBOL_GPL(devlink_fmsg_binary_pair_put); | |
4909 | ||
4910 | static int | |
4911 | devlink_fmsg_item_fill_type(struct devlink_fmsg_item *msg, struct sk_buff *skb) | |
4912 | { | |
4913 | switch (msg->nla_type) { | |
4914 | case NLA_FLAG: | |
4915 | case NLA_U8: | |
4916 | case NLA_U32: | |
4917 | case NLA_U64: | |
4918 | case NLA_NUL_STRING: | |
4919 | case NLA_BINARY: | |
4920 | return nla_put_u8(skb, DEVLINK_ATTR_FMSG_OBJ_VALUE_TYPE, | |
4921 | msg->nla_type); | |
4922 | default: | |
4923 | return -EINVAL; | |
4924 | } | |
4925 | } | |
4926 | ||
4927 | static int | |
4928 | devlink_fmsg_item_fill_data(struct devlink_fmsg_item *msg, struct sk_buff *skb) | |
4929 | { | |
4930 | int attrtype = DEVLINK_ATTR_FMSG_OBJ_VALUE_DATA; | |
4931 | u8 tmp; | |
4932 | ||
4933 | switch (msg->nla_type) { | |
4934 | case NLA_FLAG: | |
4935 | /* Always provide flag data, regardless of its value */ | |
4936 | tmp = *(bool *) msg->value; | |
4937 | ||
4938 | return nla_put_u8(skb, attrtype, tmp); | |
4939 | case NLA_U8: | |
4940 | return nla_put_u8(skb, attrtype, *(u8 *) msg->value); | |
4941 | case NLA_U32: | |
4942 | return nla_put_u32(skb, attrtype, *(u32 *) msg->value); | |
4943 | case NLA_U64: | |
4944 | return nla_put_u64_64bit(skb, attrtype, *(u64 *) msg->value, | |
4945 | DEVLINK_ATTR_PAD); | |
4946 | case NLA_NUL_STRING: | |
4947 | return nla_put_string(skb, attrtype, (char *) &msg->value); | |
4948 | case NLA_BINARY: | |
4949 | return nla_put(skb, attrtype, msg->len, (void *) &msg->value); | |
4950 | default: | |
4951 | return -EINVAL; | |
4952 | } | |
4953 | } | |
4954 | ||
4955 | static int | |
4956 | devlink_fmsg_prepare_skb(struct devlink_fmsg *fmsg, struct sk_buff *skb, | |
4957 | int *start) | |
4958 | { | |
4959 | struct devlink_fmsg_item *item; | |
4960 | struct nlattr *fmsg_nlattr; | |
4961 | int i = 0; | |
4962 | int err; | |
4963 | ||
ae0be8de | 4964 | fmsg_nlattr = nla_nest_start_noflag(skb, DEVLINK_ATTR_FMSG); |
1db64e87 EBE |
4965 | if (!fmsg_nlattr) |
4966 | return -EMSGSIZE; | |
4967 | ||
4968 | list_for_each_entry(item, &fmsg->item_list, list) { | |
4969 | if (i < *start) { | |
4970 | i++; | |
4971 | continue; | |
4972 | } | |
4973 | ||
4974 | switch (item->attrtype) { | |
4975 | case DEVLINK_ATTR_FMSG_OBJ_NEST_START: | |
4976 | case DEVLINK_ATTR_FMSG_PAIR_NEST_START: | |
4977 | case DEVLINK_ATTR_FMSG_ARR_NEST_START: | |
4978 | case DEVLINK_ATTR_FMSG_NEST_END: | |
4979 | err = nla_put_flag(skb, item->attrtype); | |
4980 | break; | |
4981 | case DEVLINK_ATTR_FMSG_OBJ_VALUE_DATA: | |
4982 | err = devlink_fmsg_item_fill_type(item, skb); | |
4983 | if (err) | |
4984 | break; | |
4985 | err = devlink_fmsg_item_fill_data(item, skb); | |
4986 | break; | |
4987 | case DEVLINK_ATTR_FMSG_OBJ_NAME: | |
4988 | err = nla_put_string(skb, item->attrtype, | |
4989 | (char *) &item->value); | |
4990 | break; | |
4991 | default: | |
4992 | err = -EINVAL; | |
4993 | break; | |
4994 | } | |
4995 | if (!err) | |
4996 | *start = ++i; | |
4997 | else | |
4998 | break; | |
4999 | } | |
5000 | ||
5001 | nla_nest_end(skb, fmsg_nlattr); | |
5002 | return err; | |
5003 | } | |
5004 | ||
5005 | static int devlink_fmsg_snd(struct devlink_fmsg *fmsg, | |
5006 | struct genl_info *info, | |
5007 | enum devlink_command cmd, int flags) | |
5008 | { | |
5009 | struct nlmsghdr *nlh; | |
5010 | struct sk_buff *skb; | |
5011 | bool last = false; | |
5012 | int index = 0; | |
5013 | void *hdr; | |
5014 | int err; | |
5015 | ||
5016 | while (!last) { | |
5017 | int tmp_index = index; | |
5018 | ||
5019 | skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
5020 | if (!skb) | |
5021 | return -ENOMEM; | |
5022 | ||
5023 | hdr = genlmsg_put(skb, info->snd_portid, info->snd_seq, | |
5024 | &devlink_nl_family, flags | NLM_F_MULTI, cmd); | |
5025 | if (!hdr) { | |
5026 | err = -EMSGSIZE; | |
5027 | goto nla_put_failure; | |
5028 | } | |
5029 | ||
5030 | err = devlink_fmsg_prepare_skb(fmsg, skb, &index); | |
5031 | if (!err) | |
5032 | last = true; | |
5033 | else if (err != -EMSGSIZE || tmp_index == index) | |
5034 | goto nla_put_failure; | |
5035 | ||
5036 | genlmsg_end(skb, hdr); | |
5037 | err = genlmsg_reply(skb, info); | |
5038 | if (err) | |
5039 | return err; | |
5040 | } | |
5041 | ||
5042 | skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
5043 | if (!skb) | |
5044 | return -ENOMEM; | |
5045 | nlh = nlmsg_put(skb, info->snd_portid, info->snd_seq, | |
5046 | NLMSG_DONE, 0, flags | NLM_F_MULTI); | |
5047 | if (!nlh) { | |
5048 | err = -EMSGSIZE; | |
5049 | goto nla_put_failure; | |
5050 | } | |
1db64e87 | 5051 | |
fde55ea7 | 5052 | return genlmsg_reply(skb, info); |
1db64e87 EBE |
5053 | |
5054 | nla_put_failure: | |
5055 | nlmsg_free(skb); | |
5056 | return err; | |
5057 | } | |
5058 | ||
e44ef4e4 AL |
5059 | static int devlink_fmsg_dumpit(struct devlink_fmsg *fmsg, struct sk_buff *skb, |
5060 | struct netlink_callback *cb, | |
5061 | enum devlink_command cmd) | |
5062 | { | |
5063 | int index = cb->args[0]; | |
5064 | int tmp_index = index; | |
5065 | void *hdr; | |
5066 | int err; | |
5067 | ||
5068 | hdr = genlmsg_put(skb, NETLINK_CB(cb->skb).portid, cb->nlh->nlmsg_seq, | |
5069 | &devlink_nl_family, NLM_F_ACK | NLM_F_MULTI, cmd); | |
5070 | if (!hdr) { | |
5071 | err = -EMSGSIZE; | |
5072 | goto nla_put_failure; | |
5073 | } | |
5074 | ||
5075 | err = devlink_fmsg_prepare_skb(fmsg, skb, &index); | |
5076 | if ((err && err != -EMSGSIZE) || tmp_index == index) | |
5077 | goto nla_put_failure; | |
5078 | ||
5079 | cb->args[0] = index; | |
5080 | genlmsg_end(skb, hdr); | |
5081 | return skb->len; | |
5082 | ||
5083 | nla_put_failure: | |
5084 | genlmsg_cancel(skb, hdr); | |
5085 | return err; | |
5086 | } | |
5087 | ||
a0bdcc59 EBE |
5088 | struct devlink_health_reporter { |
5089 | struct list_head list; | |
5090 | void *priv; | |
5091 | const struct devlink_health_reporter_ops *ops; | |
5092 | struct devlink *devlink; | |
c8e1da0b EBE |
5093 | struct devlink_fmsg *dump_fmsg; |
5094 | struct mutex dump_lock; /* lock parallel read/write from dump buffers */ | |
a0bdcc59 EBE |
5095 | u64 graceful_period; |
5096 | bool auto_recover; | |
48bb52c8 | 5097 | bool auto_dump; |
a0bdcc59 | 5098 | u8 health_state; |
c8e1da0b | 5099 | u64 dump_ts; |
d279505b | 5100 | u64 dump_real_ts; |
c8e1da0b EBE |
5101 | u64 error_count; |
5102 | u64 recovery_count; | |
5103 | u64 last_recovery_ts; | |
b587bdaf | 5104 | refcount_t refcount; |
c8e1da0b EBE |
5105 | }; |
5106 | ||
a0bdcc59 EBE |
5107 | void * |
5108 | devlink_health_reporter_priv(struct devlink_health_reporter *reporter) | |
5109 | { | |
5110 | return reporter->priv; | |
5111 | } | |
5112 | EXPORT_SYMBOL_GPL(devlink_health_reporter_priv); | |
5113 | ||
5114 | static struct devlink_health_reporter * | |
5115 | devlink_health_reporter_find_by_name(struct devlink *devlink, | |
5116 | const char *reporter_name) | |
5117 | { | |
5118 | struct devlink_health_reporter *reporter; | |
5119 | ||
b587bdaf | 5120 | lockdep_assert_held(&devlink->reporters_lock); |
a0bdcc59 EBE |
5121 | list_for_each_entry(reporter, &devlink->reporter_list, list) |
5122 | if (!strcmp(reporter->ops->name, reporter_name)) | |
5123 | return reporter; | |
5124 | return NULL; | |
5125 | } | |
5126 | ||
5127 | /** | |
5128 | * devlink_health_reporter_create - create devlink health reporter | |
5129 | * | |
5130 | * @devlink: devlink | |
5131 | * @ops: ops | |
5132 | * @graceful_period: to avoid recovery loops, in msecs | |
a0bdcc59 EBE |
5133 | * @priv: priv |
5134 | */ | |
5135 | struct devlink_health_reporter * | |
5136 | devlink_health_reporter_create(struct devlink *devlink, | |
5137 | const struct devlink_health_reporter_ops *ops, | |
ba7d16c7 | 5138 | u64 graceful_period, void *priv) |
a0bdcc59 EBE |
5139 | { |
5140 | struct devlink_health_reporter *reporter; | |
5141 | ||
b587bdaf | 5142 | mutex_lock(&devlink->reporters_lock); |
a0bdcc59 EBE |
5143 | if (devlink_health_reporter_find_by_name(devlink, ops->name)) { |
5144 | reporter = ERR_PTR(-EEXIST); | |
5145 | goto unlock; | |
5146 | } | |
5147 | ||
ba7d16c7 | 5148 | if (WARN_ON(graceful_period && !ops->recover)) { |
a0bdcc59 EBE |
5149 | reporter = ERR_PTR(-EINVAL); |
5150 | goto unlock; | |
5151 | } | |
5152 | ||
5153 | reporter = kzalloc(sizeof(*reporter), GFP_KERNEL); | |
5154 | if (!reporter) { | |
5155 | reporter = ERR_PTR(-ENOMEM); | |
5156 | goto unlock; | |
5157 | } | |
5158 | ||
5159 | reporter->priv = priv; | |
5160 | reporter->ops = ops; | |
5161 | reporter->devlink = devlink; | |
5162 | reporter->graceful_period = graceful_period; | |
ba7d16c7 | 5163 | reporter->auto_recover = !!ops->recover; |
48bb52c8 | 5164 | reporter->auto_dump = !!ops->dump; |
c8e1da0b | 5165 | mutex_init(&reporter->dump_lock); |
b587bdaf | 5166 | refcount_set(&reporter->refcount, 1); |
a0bdcc59 EBE |
5167 | list_add_tail(&reporter->list, &devlink->reporter_list); |
5168 | unlock: | |
b587bdaf | 5169 | mutex_unlock(&devlink->reporters_lock); |
a0bdcc59 EBE |
5170 | return reporter; |
5171 | } | |
5172 | EXPORT_SYMBOL_GPL(devlink_health_reporter_create); | |
5173 | ||
5174 | /** | |
5175 | * devlink_health_reporter_destroy - destroy devlink health reporter | |
5176 | * | |
5177 | * @reporter: devlink health reporter to destroy | |
5178 | */ | |
5179 | void | |
5180 | devlink_health_reporter_destroy(struct devlink_health_reporter *reporter) | |
5181 | { | |
b587bdaf | 5182 | mutex_lock(&reporter->devlink->reporters_lock); |
a0bdcc59 | 5183 | list_del(&reporter->list); |
b587bdaf MS |
5184 | mutex_unlock(&reporter->devlink->reporters_lock); |
5185 | while (refcount_read(&reporter->refcount) > 1) | |
5186 | msleep(100); | |
375cf8c6 | 5187 | mutex_destroy(&reporter->dump_lock); |
c8e1da0b EBE |
5188 | if (reporter->dump_fmsg) |
5189 | devlink_fmsg_free(reporter->dump_fmsg); | |
a0bdcc59 EBE |
5190 | kfree(reporter); |
5191 | } | |
5192 | EXPORT_SYMBOL_GPL(devlink_health_reporter_destroy); | |
5193 | ||
6ec8b6cd MS |
5194 | static int |
5195 | devlink_nl_health_reporter_fill(struct sk_buff *msg, | |
5196 | struct devlink *devlink, | |
5197 | struct devlink_health_reporter *reporter, | |
5198 | enum devlink_command cmd, u32 portid, | |
5199 | u32 seq, int flags) | |
5200 | { | |
5201 | struct nlattr *reporter_attr; | |
5202 | void *hdr; | |
5203 | ||
5204 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
5205 | if (!hdr) | |
5206 | return -EMSGSIZE; | |
5207 | ||
5208 | if (devlink_nl_put_handle(msg, devlink)) | |
5209 | goto genlmsg_cancel; | |
5210 | ||
5211 | reporter_attr = nla_nest_start_noflag(msg, | |
5212 | DEVLINK_ATTR_HEALTH_REPORTER); | |
5213 | if (!reporter_attr) | |
5214 | goto genlmsg_cancel; | |
5215 | if (nla_put_string(msg, DEVLINK_ATTR_HEALTH_REPORTER_NAME, | |
5216 | reporter->ops->name)) | |
5217 | goto reporter_nest_cancel; | |
5218 | if (nla_put_u8(msg, DEVLINK_ATTR_HEALTH_REPORTER_STATE, | |
5219 | reporter->health_state)) | |
5220 | goto reporter_nest_cancel; | |
5221 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_HEALTH_REPORTER_ERR_COUNT, | |
5222 | reporter->error_count, DEVLINK_ATTR_PAD)) | |
5223 | goto reporter_nest_cancel; | |
5224 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_HEALTH_REPORTER_RECOVER_COUNT, | |
5225 | reporter->recovery_count, DEVLINK_ATTR_PAD)) | |
5226 | goto reporter_nest_cancel; | |
5227 | if (reporter->ops->recover && | |
5228 | nla_put_u64_64bit(msg, DEVLINK_ATTR_HEALTH_REPORTER_GRACEFUL_PERIOD, | |
5229 | reporter->graceful_period, | |
5230 | DEVLINK_ATTR_PAD)) | |
5231 | goto reporter_nest_cancel; | |
5232 | if (reporter->ops->recover && | |
5233 | nla_put_u8(msg, DEVLINK_ATTR_HEALTH_REPORTER_AUTO_RECOVER, | |
5234 | reporter->auto_recover)) | |
5235 | goto reporter_nest_cancel; | |
5236 | if (reporter->dump_fmsg && | |
5237 | nla_put_u64_64bit(msg, DEVLINK_ATTR_HEALTH_REPORTER_DUMP_TS, | |
5238 | jiffies_to_msecs(reporter->dump_ts), | |
5239 | DEVLINK_ATTR_PAD)) | |
5240 | goto reporter_nest_cancel; | |
5241 | if (reporter->dump_fmsg && | |
5242 | nla_put_u64_64bit(msg, DEVLINK_ATTR_HEALTH_REPORTER_DUMP_TS_NS, | |
5243 | reporter->dump_real_ts, DEVLINK_ATTR_PAD)) | |
5244 | goto reporter_nest_cancel; | |
48bb52c8 EBE |
5245 | if (reporter->ops->dump && |
5246 | nla_put_u8(msg, DEVLINK_ATTR_HEALTH_REPORTER_AUTO_DUMP, | |
5247 | reporter->auto_dump)) | |
5248 | goto reporter_nest_cancel; | |
6ec8b6cd MS |
5249 | |
5250 | nla_nest_end(msg, reporter_attr); | |
5251 | genlmsg_end(msg, hdr); | |
5252 | return 0; | |
5253 | ||
5254 | reporter_nest_cancel: | |
5255 | nla_nest_end(msg, reporter_attr); | |
5256 | genlmsg_cancel: | |
5257 | genlmsg_cancel(msg, hdr); | |
5258 | return -EMSGSIZE; | |
5259 | } | |
5260 | ||
5261 | static void devlink_recover_notify(struct devlink_health_reporter *reporter, | |
5262 | enum devlink_command cmd) | |
5263 | { | |
5264 | struct sk_buff *msg; | |
5265 | int err; | |
5266 | ||
5267 | WARN_ON(cmd != DEVLINK_CMD_HEALTH_REPORTER_RECOVER); | |
5268 | ||
5269 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
5270 | if (!msg) | |
5271 | return; | |
5272 | ||
5273 | err = devlink_nl_health_reporter_fill(msg, reporter->devlink, | |
5274 | reporter, cmd, 0, 0, 0); | |
5275 | if (err) { | |
5276 | nlmsg_free(msg); | |
5277 | return; | |
5278 | } | |
5279 | ||
5280 | genlmsg_multicast_netns(&devlink_nl_family, | |
5281 | devlink_net(reporter->devlink), | |
5282 | msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
5283 | } | |
5284 | ||
6181e5cb VG |
5285 | void |
5286 | devlink_health_reporter_recovery_done(struct devlink_health_reporter *reporter) | |
5287 | { | |
5288 | reporter->recovery_count++; | |
5289 | reporter->last_recovery_ts = jiffies; | |
5290 | } | |
5291 | EXPORT_SYMBOL_GPL(devlink_health_reporter_recovery_done); | |
5292 | ||
c8e1da0b EBE |
5293 | static int |
5294 | devlink_health_reporter_recover(struct devlink_health_reporter *reporter, | |
e7a98105 | 5295 | void *priv_ctx, struct netlink_ext_ack *extack) |
c8e1da0b EBE |
5296 | { |
5297 | int err; | |
5298 | ||
40281820 JP |
5299 | if (reporter->health_state == DEVLINK_HEALTH_REPORTER_STATE_HEALTHY) |
5300 | return 0; | |
5301 | ||
c8e1da0b EBE |
5302 | if (!reporter->ops->recover) |
5303 | return -EOPNOTSUPP; | |
5304 | ||
e7a98105 | 5305 | err = reporter->ops->recover(reporter, priv_ctx, extack); |
c8e1da0b EBE |
5306 | if (err) |
5307 | return err; | |
5308 | ||
6181e5cb | 5309 | devlink_health_reporter_recovery_done(reporter); |
c8e1da0b | 5310 | reporter->health_state = DEVLINK_HEALTH_REPORTER_STATE_HEALTHY; |
6ec8b6cd | 5311 | devlink_recover_notify(reporter, DEVLINK_CMD_HEALTH_REPORTER_RECOVER); |
c8e1da0b EBE |
5312 | |
5313 | return 0; | |
5314 | } | |
5315 | ||
5316 | static void | |
5317 | devlink_health_dump_clear(struct devlink_health_reporter *reporter) | |
5318 | { | |
5319 | if (!reporter->dump_fmsg) | |
5320 | return; | |
5321 | devlink_fmsg_free(reporter->dump_fmsg); | |
5322 | reporter->dump_fmsg = NULL; | |
5323 | } | |
5324 | ||
5325 | static int devlink_health_do_dump(struct devlink_health_reporter *reporter, | |
e7a98105 JP |
5326 | void *priv_ctx, |
5327 | struct netlink_ext_ack *extack) | |
c8e1da0b EBE |
5328 | { |
5329 | int err; | |
5330 | ||
5331 | if (!reporter->ops->dump) | |
5332 | return 0; | |
5333 | ||
5334 | if (reporter->dump_fmsg) | |
5335 | return 0; | |
5336 | ||
5337 | reporter->dump_fmsg = devlink_fmsg_alloc(); | |
5338 | if (!reporter->dump_fmsg) { | |
5339 | err = -ENOMEM; | |
5340 | return err; | |
5341 | } | |
5342 | ||
5343 | err = devlink_fmsg_obj_nest_start(reporter->dump_fmsg); | |
5344 | if (err) | |
5345 | goto dump_err; | |
5346 | ||
5347 | err = reporter->ops->dump(reporter, reporter->dump_fmsg, | |
e7a98105 | 5348 | priv_ctx, extack); |
c8e1da0b EBE |
5349 | if (err) |
5350 | goto dump_err; | |
5351 | ||
5352 | err = devlink_fmsg_obj_nest_end(reporter->dump_fmsg); | |
5353 | if (err) | |
5354 | goto dump_err; | |
5355 | ||
5356 | reporter->dump_ts = jiffies; | |
d279505b | 5357 | reporter->dump_real_ts = ktime_get_real_ns(); |
c8e1da0b EBE |
5358 | |
5359 | return 0; | |
5360 | ||
5361 | dump_err: | |
5362 | devlink_health_dump_clear(reporter); | |
5363 | return err; | |
5364 | } | |
5365 | ||
5366 | int devlink_health_report(struct devlink_health_reporter *reporter, | |
5367 | const char *msg, void *priv_ctx) | |
5368 | { | |
a0a21adb | 5369 | enum devlink_health_reporter_state prev_health_state; |
c8e1da0b | 5370 | struct devlink *devlink = reporter->devlink; |
bea0c5c9 | 5371 | unsigned long recover_ts_threshold; |
c8e1da0b EBE |
5372 | |
5373 | /* write a log message of the current error */ | |
5374 | WARN_ON(!msg); | |
5375 | trace_devlink_health_report(devlink, reporter->ops->name, msg); | |
5376 | reporter->error_count++; | |
a0a21adb EBE |
5377 | prev_health_state = reporter->health_state; |
5378 | reporter->health_state = DEVLINK_HEALTH_REPORTER_STATE_ERROR; | |
6ec8b6cd | 5379 | devlink_recover_notify(reporter, DEVLINK_CMD_HEALTH_REPORTER_RECOVER); |
c8e1da0b EBE |
5380 | |
5381 | /* abort if the previous error wasn't recovered */ | |
bea0c5c9 AL |
5382 | recover_ts_threshold = reporter->last_recovery_ts + |
5383 | msecs_to_jiffies(reporter->graceful_period); | |
c8e1da0b | 5384 | if (reporter->auto_recover && |
a0a21adb | 5385 | (prev_health_state != DEVLINK_HEALTH_REPORTER_STATE_HEALTHY || |
bea0c5c9 AL |
5386 | (reporter->last_recovery_ts && reporter->recovery_count && |
5387 | time_is_after_jiffies(recover_ts_threshold)))) { | |
c8e1da0b EBE |
5388 | trace_devlink_health_recover_aborted(devlink, |
5389 | reporter->ops->name, | |
5390 | reporter->health_state, | |
5391 | jiffies - | |
5392 | reporter->last_recovery_ts); | |
5393 | return -ECANCELED; | |
5394 | } | |
5395 | ||
5396 | reporter->health_state = DEVLINK_HEALTH_REPORTER_STATE_ERROR; | |
5397 | ||
48bb52c8 EBE |
5398 | if (reporter->auto_dump) { |
5399 | mutex_lock(&reporter->dump_lock); | |
5400 | /* store current dump of current error, for later analysis */ | |
5401 | devlink_health_do_dump(reporter, priv_ctx, NULL); | |
5402 | mutex_unlock(&reporter->dump_lock); | |
5403 | } | |
c8e1da0b EBE |
5404 | |
5405 | if (reporter->auto_recover) | |
e7a98105 JP |
5406 | return devlink_health_reporter_recover(reporter, |
5407 | priv_ctx, NULL); | |
c8e1da0b EBE |
5408 | |
5409 | return 0; | |
5410 | } | |
5411 | EXPORT_SYMBOL_GPL(devlink_health_report); | |
5412 | ||
7afe335a | 5413 | static struct devlink_health_reporter * |
e44ef4e4 AL |
5414 | devlink_health_reporter_get_from_attrs(struct devlink *devlink, |
5415 | struct nlattr **attrs) | |
7afe335a | 5416 | { |
b587bdaf | 5417 | struct devlink_health_reporter *reporter; |
7afe335a EBE |
5418 | char *reporter_name; |
5419 | ||
e44ef4e4 | 5420 | if (!attrs[DEVLINK_ATTR_HEALTH_REPORTER_NAME]) |
7afe335a EBE |
5421 | return NULL; |
5422 | ||
e44ef4e4 | 5423 | reporter_name = nla_data(attrs[DEVLINK_ATTR_HEALTH_REPORTER_NAME]); |
b587bdaf MS |
5424 | mutex_lock(&devlink->reporters_lock); |
5425 | reporter = devlink_health_reporter_find_by_name(devlink, reporter_name); | |
5426 | if (reporter) | |
5427 | refcount_inc(&reporter->refcount); | |
5428 | mutex_unlock(&devlink->reporters_lock); | |
5429 | return reporter; | |
5430 | } | |
5431 | ||
e44ef4e4 AL |
5432 | static struct devlink_health_reporter * |
5433 | devlink_health_reporter_get_from_info(struct devlink *devlink, | |
5434 | struct genl_info *info) | |
5435 | { | |
5436 | return devlink_health_reporter_get_from_attrs(devlink, info->attrs); | |
5437 | } | |
5438 | ||
5439 | static struct devlink_health_reporter * | |
5440 | devlink_health_reporter_get_from_cb(struct netlink_callback *cb) | |
5441 | { | |
ee85da53 | 5442 | const struct genl_dumpit_info *info = genl_dumpit_info(cb); |
e44ef4e4 | 5443 | struct devlink_health_reporter *reporter; |
ee85da53 | 5444 | struct nlattr **attrs = info->attrs; |
e44ef4e4 | 5445 | struct devlink *devlink; |
e44ef4e4 AL |
5446 | |
5447 | mutex_lock(&devlink_mutex); | |
5448 | devlink = devlink_get_from_attrs(sock_net(cb->skb->sk), attrs); | |
5449 | if (IS_ERR(devlink)) | |
5450 | goto unlock; | |
5451 | ||
5452 | reporter = devlink_health_reporter_get_from_attrs(devlink, attrs); | |
5453 | mutex_unlock(&devlink_mutex); | |
e44ef4e4 AL |
5454 | return reporter; |
5455 | unlock: | |
5456 | mutex_unlock(&devlink_mutex); | |
e44ef4e4 AL |
5457 | return NULL; |
5458 | } | |
5459 | ||
b587bdaf MS |
5460 | static void |
5461 | devlink_health_reporter_put(struct devlink_health_reporter *reporter) | |
5462 | { | |
5463 | refcount_dec(&reporter->refcount); | |
7afe335a EBE |
5464 | } |
5465 | ||
97ff3bd3 VG |
5466 | void |
5467 | devlink_health_reporter_state_update(struct devlink_health_reporter *reporter, | |
5468 | enum devlink_health_reporter_state state) | |
5469 | { | |
5470 | if (WARN_ON(state != DEVLINK_HEALTH_REPORTER_STATE_HEALTHY && | |
5471 | state != DEVLINK_HEALTH_REPORTER_STATE_ERROR)) | |
5472 | return; | |
5473 | ||
5474 | if (reporter->health_state == state) | |
5475 | return; | |
5476 | ||
5477 | reporter->health_state = state; | |
5478 | trace_devlink_health_reporter_state_update(reporter->devlink, | |
5479 | reporter->ops->name, state); | |
5480 | devlink_recover_notify(reporter, DEVLINK_CMD_HEALTH_REPORTER_RECOVER); | |
5481 | } | |
5482 | EXPORT_SYMBOL_GPL(devlink_health_reporter_state_update); | |
5483 | ||
7afe335a EBE |
5484 | static int devlink_nl_cmd_health_reporter_get_doit(struct sk_buff *skb, |
5485 | struct genl_info *info) | |
5486 | { | |
5487 | struct devlink *devlink = info->user_ptr[0]; | |
5488 | struct devlink_health_reporter *reporter; | |
5489 | struct sk_buff *msg; | |
5490 | int err; | |
5491 | ||
5492 | reporter = devlink_health_reporter_get_from_info(devlink, info); | |
5493 | if (!reporter) | |
5494 | return -EINVAL; | |
5495 | ||
5496 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
b587bdaf MS |
5497 | if (!msg) { |
5498 | err = -ENOMEM; | |
5499 | goto out; | |
5500 | } | |
7afe335a EBE |
5501 | |
5502 | err = devlink_nl_health_reporter_fill(msg, devlink, reporter, | |
5503 | DEVLINK_CMD_HEALTH_REPORTER_GET, | |
5504 | info->snd_portid, info->snd_seq, | |
5505 | 0); | |
5506 | if (err) { | |
5507 | nlmsg_free(msg); | |
b587bdaf | 5508 | goto out; |
7afe335a EBE |
5509 | } |
5510 | ||
b587bdaf MS |
5511 | err = genlmsg_reply(msg, info); |
5512 | out: | |
5513 | devlink_health_reporter_put(reporter); | |
5514 | return err; | |
7afe335a EBE |
5515 | } |
5516 | ||
5517 | static int | |
5518 | devlink_nl_cmd_health_reporter_get_dumpit(struct sk_buff *msg, | |
5519 | struct netlink_callback *cb) | |
5520 | { | |
5521 | struct devlink_health_reporter *reporter; | |
5522 | struct devlink *devlink; | |
5523 | int start = cb->args[0]; | |
5524 | int idx = 0; | |
5525 | int err; | |
5526 | ||
5527 | mutex_lock(&devlink_mutex); | |
5528 | list_for_each_entry(devlink, &devlink_list, list) { | |
5529 | if (!net_eq(devlink_net(devlink), sock_net(msg->sk))) | |
5530 | continue; | |
b587bdaf | 5531 | mutex_lock(&devlink->reporters_lock); |
7afe335a EBE |
5532 | list_for_each_entry(reporter, &devlink->reporter_list, |
5533 | list) { | |
5534 | if (idx < start) { | |
5535 | idx++; | |
5536 | continue; | |
5537 | } | |
5538 | err = devlink_nl_health_reporter_fill(msg, devlink, | |
5539 | reporter, | |
5540 | DEVLINK_CMD_HEALTH_REPORTER_GET, | |
5541 | NETLINK_CB(cb->skb).portid, | |
5542 | cb->nlh->nlmsg_seq, | |
5543 | NLM_F_MULTI); | |
5544 | if (err) { | |
b587bdaf | 5545 | mutex_unlock(&devlink->reporters_lock); |
7afe335a EBE |
5546 | goto out; |
5547 | } | |
5548 | idx++; | |
5549 | } | |
b587bdaf | 5550 | mutex_unlock(&devlink->reporters_lock); |
7afe335a EBE |
5551 | } |
5552 | out: | |
5553 | mutex_unlock(&devlink_mutex); | |
5554 | ||
5555 | cb->args[0] = idx; | |
5556 | return msg->len; | |
5557 | } | |
5558 | ||
a1e55ec0 EBE |
5559 | static int |
5560 | devlink_nl_cmd_health_reporter_set_doit(struct sk_buff *skb, | |
5561 | struct genl_info *info) | |
5562 | { | |
5563 | struct devlink *devlink = info->user_ptr[0]; | |
5564 | struct devlink_health_reporter *reporter; | |
b587bdaf | 5565 | int err; |
a1e55ec0 EBE |
5566 | |
5567 | reporter = devlink_health_reporter_get_from_info(devlink, info); | |
5568 | if (!reporter) | |
5569 | return -EINVAL; | |
5570 | ||
5571 | if (!reporter->ops->recover && | |
5572 | (info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_GRACEFUL_PERIOD] || | |
b587bdaf MS |
5573 | info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_AUTO_RECOVER])) { |
5574 | err = -EOPNOTSUPP; | |
5575 | goto out; | |
5576 | } | |
48bb52c8 EBE |
5577 | if (!reporter->ops->dump && |
5578 | info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_AUTO_DUMP]) { | |
5579 | err = -EOPNOTSUPP; | |
5580 | goto out; | |
5581 | } | |
a1e55ec0 EBE |
5582 | |
5583 | if (info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_GRACEFUL_PERIOD]) | |
5584 | reporter->graceful_period = | |
5585 | nla_get_u64(info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_GRACEFUL_PERIOD]); | |
5586 | ||
5587 | if (info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_AUTO_RECOVER]) | |
5588 | reporter->auto_recover = | |
5589 | nla_get_u8(info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_AUTO_RECOVER]); | |
5590 | ||
48bb52c8 EBE |
5591 | if (info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_AUTO_DUMP]) |
5592 | reporter->auto_dump = | |
5593 | nla_get_u8(info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_AUTO_DUMP]); | |
5594 | ||
b587bdaf | 5595 | devlink_health_reporter_put(reporter); |
a1e55ec0 | 5596 | return 0; |
b587bdaf MS |
5597 | out: |
5598 | devlink_health_reporter_put(reporter); | |
5599 | return err; | |
a1e55ec0 EBE |
5600 | } |
5601 | ||
20a0943a EBE |
5602 | static int devlink_nl_cmd_health_reporter_recover_doit(struct sk_buff *skb, |
5603 | struct genl_info *info) | |
5604 | { | |
5605 | struct devlink *devlink = info->user_ptr[0]; | |
5606 | struct devlink_health_reporter *reporter; | |
b587bdaf | 5607 | int err; |
20a0943a EBE |
5608 | |
5609 | reporter = devlink_health_reporter_get_from_info(devlink, info); | |
5610 | if (!reporter) | |
5611 | return -EINVAL; | |
5612 | ||
e7a98105 | 5613 | err = devlink_health_reporter_recover(reporter, NULL, info->extack); |
b587bdaf MS |
5614 | |
5615 | devlink_health_reporter_put(reporter); | |
5616 | return err; | |
20a0943a EBE |
5617 | } |
5618 | ||
fca42a27 EBE |
5619 | static int devlink_nl_cmd_health_reporter_diagnose_doit(struct sk_buff *skb, |
5620 | struct genl_info *info) | |
5621 | { | |
5622 | struct devlink *devlink = info->user_ptr[0]; | |
5623 | struct devlink_health_reporter *reporter; | |
5624 | struct devlink_fmsg *fmsg; | |
5625 | int err; | |
5626 | ||
5627 | reporter = devlink_health_reporter_get_from_info(devlink, info); | |
5628 | if (!reporter) | |
5629 | return -EINVAL; | |
5630 | ||
b587bdaf MS |
5631 | if (!reporter->ops->diagnose) { |
5632 | devlink_health_reporter_put(reporter); | |
fca42a27 | 5633 | return -EOPNOTSUPP; |
b587bdaf | 5634 | } |
fca42a27 EBE |
5635 | |
5636 | fmsg = devlink_fmsg_alloc(); | |
b587bdaf MS |
5637 | if (!fmsg) { |
5638 | devlink_health_reporter_put(reporter); | |
fca42a27 | 5639 | return -ENOMEM; |
b587bdaf | 5640 | } |
fca42a27 EBE |
5641 | |
5642 | err = devlink_fmsg_obj_nest_start(fmsg); | |
5643 | if (err) | |
5644 | goto out; | |
5645 | ||
e7a98105 | 5646 | err = reporter->ops->diagnose(reporter, fmsg, info->extack); |
fca42a27 EBE |
5647 | if (err) |
5648 | goto out; | |
5649 | ||
5650 | err = devlink_fmsg_obj_nest_end(fmsg); | |
5651 | if (err) | |
5652 | goto out; | |
5653 | ||
5654 | err = devlink_fmsg_snd(fmsg, info, | |
5655 | DEVLINK_CMD_HEALTH_REPORTER_DIAGNOSE, 0); | |
5656 | ||
5657 | out: | |
5658 | devlink_fmsg_free(fmsg); | |
b587bdaf | 5659 | devlink_health_reporter_put(reporter); |
fca42a27 EBE |
5660 | return err; |
5661 | } | |
5662 | ||
e44ef4e4 AL |
5663 | static int |
5664 | devlink_nl_cmd_health_reporter_dump_get_dumpit(struct sk_buff *skb, | |
5665 | struct netlink_callback *cb) | |
35455e23 | 5666 | { |
35455e23 | 5667 | struct devlink_health_reporter *reporter; |
e44ef4e4 | 5668 | u64 start = cb->args[0]; |
35455e23 EBE |
5669 | int err; |
5670 | ||
e44ef4e4 | 5671 | reporter = devlink_health_reporter_get_from_cb(cb); |
35455e23 EBE |
5672 | if (!reporter) |
5673 | return -EINVAL; | |
5674 | ||
b587bdaf | 5675 | if (!reporter->ops->dump) { |
e44ef4e4 AL |
5676 | err = -EOPNOTSUPP; |
5677 | goto out; | |
b587bdaf | 5678 | } |
35455e23 | 5679 | mutex_lock(&reporter->dump_lock); |
e44ef4e4 | 5680 | if (!start) { |
e7a98105 | 5681 | err = devlink_health_do_dump(reporter, NULL, cb->extack); |
e44ef4e4 AL |
5682 | if (err) |
5683 | goto unlock; | |
5684 | cb->args[1] = reporter->dump_ts; | |
5685 | } | |
5686 | if (!reporter->dump_fmsg || cb->args[1] != reporter->dump_ts) { | |
5687 | NL_SET_ERR_MSG_MOD(cb->extack, "Dump trampled, please retry"); | |
5688 | err = -EAGAIN; | |
5689 | goto unlock; | |
5690 | } | |
35455e23 | 5691 | |
e44ef4e4 AL |
5692 | err = devlink_fmsg_dumpit(reporter->dump_fmsg, skb, cb, |
5693 | DEVLINK_CMD_HEALTH_REPORTER_DUMP_GET); | |
5694 | unlock: | |
35455e23 | 5695 | mutex_unlock(&reporter->dump_lock); |
e44ef4e4 | 5696 | out: |
b587bdaf | 5697 | devlink_health_reporter_put(reporter); |
35455e23 EBE |
5698 | return err; |
5699 | } | |
5700 | ||
5701 | static int | |
5702 | devlink_nl_cmd_health_reporter_dump_clear_doit(struct sk_buff *skb, | |
5703 | struct genl_info *info) | |
5704 | { | |
5705 | struct devlink *devlink = info->user_ptr[0]; | |
5706 | struct devlink_health_reporter *reporter; | |
5707 | ||
5708 | reporter = devlink_health_reporter_get_from_info(devlink, info); | |
5709 | if (!reporter) | |
5710 | return -EINVAL; | |
5711 | ||
b587bdaf MS |
5712 | if (!reporter->ops->dump) { |
5713 | devlink_health_reporter_put(reporter); | |
35455e23 | 5714 | return -EOPNOTSUPP; |
b587bdaf | 5715 | } |
35455e23 EBE |
5716 | |
5717 | mutex_lock(&reporter->dump_lock); | |
5718 | devlink_health_dump_clear(reporter); | |
5719 | mutex_unlock(&reporter->dump_lock); | |
b587bdaf | 5720 | devlink_health_reporter_put(reporter); |
35455e23 EBE |
5721 | return 0; |
5722 | } | |
5723 | ||
0f420b6c IS |
5724 | struct devlink_stats { |
5725 | u64 rx_bytes; | |
5726 | u64 rx_packets; | |
5727 | struct u64_stats_sync syncp; | |
5728 | }; | |
5729 | ||
1e8c6619 IS |
5730 | /** |
5731 | * struct devlink_trap_policer_item - Packet trap policer attributes. | |
5732 | * @policer: Immutable packet trap policer attributes. | |
5733 | * @rate: Rate in packets / sec. | |
5734 | * @burst: Burst size in packets. | |
5735 | * @list: trap_policer_list member. | |
5736 | * | |
5737 | * Describes packet trap policer attributes. Created by devlink during trap | |
5738 | * policer registration. | |
5739 | */ | |
5740 | struct devlink_trap_policer_item { | |
5741 | const struct devlink_trap_policer *policer; | |
5742 | u64 rate; | |
5743 | u64 burst; | |
5744 | struct list_head list; | |
5745 | }; | |
5746 | ||
0f420b6c IS |
5747 | /** |
5748 | * struct devlink_trap_group_item - Packet trap group attributes. | |
5749 | * @group: Immutable packet trap group attributes. | |
f9f54392 | 5750 | * @policer_item: Associated policer item. Can be NULL. |
0f420b6c IS |
5751 | * @list: trap_group_list member. |
5752 | * @stats: Trap group statistics. | |
5753 | * | |
5754 | * Describes packet trap group attributes. Created by devlink during trap | |
a09b37fc | 5755 | * group registration. |
0f420b6c IS |
5756 | */ |
5757 | struct devlink_trap_group_item { | |
5758 | const struct devlink_trap_group *group; | |
f9f54392 | 5759 | struct devlink_trap_policer_item *policer_item; |
0f420b6c IS |
5760 | struct list_head list; |
5761 | struct devlink_stats __percpu *stats; | |
5762 | }; | |
5763 | ||
5764 | /** | |
5765 | * struct devlink_trap_item - Packet trap attributes. | |
5766 | * @trap: Immutable packet trap attributes. | |
5767 | * @group_item: Associated group item. | |
5768 | * @list: trap_list member. | |
5769 | * @action: Trap action. | |
5770 | * @stats: Trap statistics. | |
5771 | * @priv: Driver private information. | |
5772 | * | |
5773 | * Describes both mutable and immutable packet trap attributes. Created by | |
5774 | * devlink during trap registration and used for all trap related operations. | |
5775 | */ | |
5776 | struct devlink_trap_item { | |
5777 | const struct devlink_trap *trap; | |
5778 | struct devlink_trap_group_item *group_item; | |
5779 | struct list_head list; | |
5780 | enum devlink_trap_action action; | |
5781 | struct devlink_stats __percpu *stats; | |
5782 | void *priv; | |
5783 | }; | |
5784 | ||
1e8c6619 IS |
5785 | static struct devlink_trap_policer_item * |
5786 | devlink_trap_policer_item_lookup(struct devlink *devlink, u32 id) | |
5787 | { | |
5788 | struct devlink_trap_policer_item *policer_item; | |
5789 | ||
5790 | list_for_each_entry(policer_item, &devlink->trap_policer_list, list) { | |
5791 | if (policer_item->policer->id == id) | |
5792 | return policer_item; | |
5793 | } | |
5794 | ||
5795 | return NULL; | |
5796 | } | |
5797 | ||
0f420b6c IS |
5798 | static struct devlink_trap_item * |
5799 | devlink_trap_item_lookup(struct devlink *devlink, const char *name) | |
5800 | { | |
5801 | struct devlink_trap_item *trap_item; | |
5802 | ||
5803 | list_for_each_entry(trap_item, &devlink->trap_list, list) { | |
5804 | if (!strcmp(trap_item->trap->name, name)) | |
5805 | return trap_item; | |
5806 | } | |
5807 | ||
5808 | return NULL; | |
5809 | } | |
5810 | ||
5811 | static struct devlink_trap_item * | |
5812 | devlink_trap_item_get_from_info(struct devlink *devlink, | |
5813 | struct genl_info *info) | |
5814 | { | |
5815 | struct nlattr *attr; | |
5816 | ||
5817 | if (!info->attrs[DEVLINK_ATTR_TRAP_NAME]) | |
5818 | return NULL; | |
5819 | attr = info->attrs[DEVLINK_ATTR_TRAP_NAME]; | |
5820 | ||
5821 | return devlink_trap_item_lookup(devlink, nla_data(attr)); | |
5822 | } | |
5823 | ||
5824 | static int | |
5825 | devlink_trap_action_get_from_info(struct genl_info *info, | |
5826 | enum devlink_trap_action *p_trap_action) | |
5827 | { | |
5828 | u8 val; | |
5829 | ||
5830 | val = nla_get_u8(info->attrs[DEVLINK_ATTR_TRAP_ACTION]); | |
5831 | switch (val) { | |
5832 | case DEVLINK_TRAP_ACTION_DROP: /* fall-through */ | |
5833 | case DEVLINK_TRAP_ACTION_TRAP: | |
5834 | *p_trap_action = val; | |
5835 | break; | |
5836 | default: | |
5837 | return -EINVAL; | |
5838 | } | |
5839 | ||
5840 | return 0; | |
5841 | } | |
5842 | ||
5843 | static int devlink_trap_metadata_put(struct sk_buff *msg, | |
5844 | const struct devlink_trap *trap) | |
5845 | { | |
5846 | struct nlattr *attr; | |
5847 | ||
5848 | attr = nla_nest_start(msg, DEVLINK_ATTR_TRAP_METADATA); | |
5849 | if (!attr) | |
5850 | return -EMSGSIZE; | |
5851 | ||
5852 | if ((trap->metadata_cap & DEVLINK_TRAP_METADATA_TYPE_F_IN_PORT) && | |
5853 | nla_put_flag(msg, DEVLINK_ATTR_TRAP_METADATA_TYPE_IN_PORT)) | |
5854 | goto nla_put_failure; | |
85b0589e JP |
5855 | if ((trap->metadata_cap & DEVLINK_TRAP_METADATA_TYPE_F_FA_COOKIE) && |
5856 | nla_put_flag(msg, DEVLINK_ATTR_TRAP_METADATA_TYPE_FA_COOKIE)) | |
5857 | goto nla_put_failure; | |
0f420b6c IS |
5858 | |
5859 | nla_nest_end(msg, attr); | |
5860 | ||
5861 | return 0; | |
5862 | ||
5863 | nla_put_failure: | |
5864 | nla_nest_cancel(msg, attr); | |
5865 | return -EMSGSIZE; | |
5866 | } | |
5867 | ||
5868 | static void devlink_trap_stats_read(struct devlink_stats __percpu *trap_stats, | |
5869 | struct devlink_stats *stats) | |
5870 | { | |
5871 | int i; | |
5872 | ||
5873 | memset(stats, 0, sizeof(*stats)); | |
5874 | for_each_possible_cpu(i) { | |
5875 | struct devlink_stats *cpu_stats; | |
5876 | u64 rx_packets, rx_bytes; | |
5877 | unsigned int start; | |
5878 | ||
5879 | cpu_stats = per_cpu_ptr(trap_stats, i); | |
5880 | do { | |
5881 | start = u64_stats_fetch_begin_irq(&cpu_stats->syncp); | |
5882 | rx_packets = cpu_stats->rx_packets; | |
5883 | rx_bytes = cpu_stats->rx_bytes; | |
5884 | } while (u64_stats_fetch_retry_irq(&cpu_stats->syncp, start)); | |
5885 | ||
5886 | stats->rx_packets += rx_packets; | |
5887 | stats->rx_bytes += rx_bytes; | |
5888 | } | |
5889 | } | |
5890 | ||
5891 | static int devlink_trap_stats_put(struct sk_buff *msg, | |
5892 | struct devlink_stats __percpu *trap_stats) | |
5893 | { | |
5894 | struct devlink_stats stats; | |
5895 | struct nlattr *attr; | |
5896 | ||
5897 | devlink_trap_stats_read(trap_stats, &stats); | |
5898 | ||
5899 | attr = nla_nest_start(msg, DEVLINK_ATTR_STATS); | |
5900 | if (!attr) | |
5901 | return -EMSGSIZE; | |
5902 | ||
5903 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_STATS_RX_PACKETS, | |
5904 | stats.rx_packets, DEVLINK_ATTR_PAD)) | |
5905 | goto nla_put_failure; | |
5906 | ||
5907 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_STATS_RX_BYTES, | |
5908 | stats.rx_bytes, DEVLINK_ATTR_PAD)) | |
5909 | goto nla_put_failure; | |
5910 | ||
5911 | nla_nest_end(msg, attr); | |
5912 | ||
5913 | return 0; | |
5914 | ||
5915 | nla_put_failure: | |
5916 | nla_nest_cancel(msg, attr); | |
5917 | return -EMSGSIZE; | |
5918 | } | |
5919 | ||
5920 | static int devlink_nl_trap_fill(struct sk_buff *msg, struct devlink *devlink, | |
5921 | const struct devlink_trap_item *trap_item, | |
5922 | enum devlink_command cmd, u32 portid, u32 seq, | |
5923 | int flags) | |
5924 | { | |
5925 | struct devlink_trap_group_item *group_item = trap_item->group_item; | |
5926 | void *hdr; | |
5927 | int err; | |
5928 | ||
5929 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
5930 | if (!hdr) | |
5931 | return -EMSGSIZE; | |
5932 | ||
5933 | if (devlink_nl_put_handle(msg, devlink)) | |
5934 | goto nla_put_failure; | |
5935 | ||
5936 | if (nla_put_string(msg, DEVLINK_ATTR_TRAP_GROUP_NAME, | |
5937 | group_item->group->name)) | |
5938 | goto nla_put_failure; | |
5939 | ||
5940 | if (nla_put_string(msg, DEVLINK_ATTR_TRAP_NAME, trap_item->trap->name)) | |
5941 | goto nla_put_failure; | |
5942 | ||
5943 | if (nla_put_u8(msg, DEVLINK_ATTR_TRAP_TYPE, trap_item->trap->type)) | |
5944 | goto nla_put_failure; | |
5945 | ||
5946 | if (trap_item->trap->generic && | |
5947 | nla_put_flag(msg, DEVLINK_ATTR_TRAP_GENERIC)) | |
5948 | goto nla_put_failure; | |
5949 | ||
5950 | if (nla_put_u8(msg, DEVLINK_ATTR_TRAP_ACTION, trap_item->action)) | |
5951 | goto nla_put_failure; | |
5952 | ||
5953 | err = devlink_trap_metadata_put(msg, trap_item->trap); | |
5954 | if (err) | |
5955 | goto nla_put_failure; | |
5956 | ||
5957 | err = devlink_trap_stats_put(msg, trap_item->stats); | |
5958 | if (err) | |
5959 | goto nla_put_failure; | |
5960 | ||
5961 | genlmsg_end(msg, hdr); | |
5962 | ||
5963 | return 0; | |
5964 | ||
5965 | nla_put_failure: | |
5966 | genlmsg_cancel(msg, hdr); | |
5967 | return -EMSGSIZE; | |
5968 | } | |
5969 | ||
5970 | static int devlink_nl_cmd_trap_get_doit(struct sk_buff *skb, | |
5971 | struct genl_info *info) | |
5972 | { | |
5973 | struct netlink_ext_ack *extack = info->extack; | |
5974 | struct devlink *devlink = info->user_ptr[0]; | |
5975 | struct devlink_trap_item *trap_item; | |
5976 | struct sk_buff *msg; | |
5977 | int err; | |
5978 | ||
5979 | if (list_empty(&devlink->trap_list)) | |
5980 | return -EOPNOTSUPP; | |
5981 | ||
5982 | trap_item = devlink_trap_item_get_from_info(devlink, info); | |
5983 | if (!trap_item) { | |
5984 | NL_SET_ERR_MSG_MOD(extack, "Device did not register this trap"); | |
5985 | return -ENOENT; | |
5986 | } | |
5987 | ||
5988 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
5989 | if (!msg) | |
5990 | return -ENOMEM; | |
5991 | ||
5992 | err = devlink_nl_trap_fill(msg, devlink, trap_item, | |
5993 | DEVLINK_CMD_TRAP_NEW, info->snd_portid, | |
5994 | info->snd_seq, 0); | |
5995 | if (err) | |
5996 | goto err_trap_fill; | |
5997 | ||
5998 | return genlmsg_reply(msg, info); | |
5999 | ||
6000 | err_trap_fill: | |
6001 | nlmsg_free(msg); | |
6002 | return err; | |
6003 | } | |
6004 | ||
6005 | static int devlink_nl_cmd_trap_get_dumpit(struct sk_buff *msg, | |
6006 | struct netlink_callback *cb) | |
6007 | { | |
6008 | struct devlink_trap_item *trap_item; | |
6009 | struct devlink *devlink; | |
6010 | int start = cb->args[0]; | |
6011 | int idx = 0; | |
6012 | int err; | |
6013 | ||
6014 | mutex_lock(&devlink_mutex); | |
6015 | list_for_each_entry(devlink, &devlink_list, list) { | |
6016 | if (!net_eq(devlink_net(devlink), sock_net(msg->sk))) | |
6017 | continue; | |
6018 | mutex_lock(&devlink->lock); | |
6019 | list_for_each_entry(trap_item, &devlink->trap_list, list) { | |
6020 | if (idx < start) { | |
6021 | idx++; | |
6022 | continue; | |
6023 | } | |
6024 | err = devlink_nl_trap_fill(msg, devlink, trap_item, | |
6025 | DEVLINK_CMD_TRAP_NEW, | |
6026 | NETLINK_CB(cb->skb).portid, | |
6027 | cb->nlh->nlmsg_seq, | |
6028 | NLM_F_MULTI); | |
6029 | if (err) { | |
6030 | mutex_unlock(&devlink->lock); | |
6031 | goto out; | |
6032 | } | |
6033 | idx++; | |
6034 | } | |
6035 | mutex_unlock(&devlink->lock); | |
6036 | } | |
6037 | out: | |
6038 | mutex_unlock(&devlink_mutex); | |
6039 | ||
6040 | cb->args[0] = idx; | |
6041 | return msg->len; | |
6042 | } | |
6043 | ||
6044 | static int __devlink_trap_action_set(struct devlink *devlink, | |
6045 | struct devlink_trap_item *trap_item, | |
6046 | enum devlink_trap_action trap_action, | |
6047 | struct netlink_ext_ack *extack) | |
6048 | { | |
6049 | int err; | |
6050 | ||
6051 | if (trap_item->action != trap_action && | |
6052 | trap_item->trap->type != DEVLINK_TRAP_TYPE_DROP) { | |
6053 | NL_SET_ERR_MSG_MOD(extack, "Cannot change action of non-drop traps. Skipping"); | |
6054 | return 0; | |
6055 | } | |
6056 | ||
6057 | err = devlink->ops->trap_action_set(devlink, trap_item->trap, | |
6058 | trap_action); | |
6059 | if (err) | |
6060 | return err; | |
6061 | ||
6062 | trap_item->action = trap_action; | |
6063 | ||
6064 | return 0; | |
6065 | } | |
6066 | ||
6067 | static int devlink_trap_action_set(struct devlink *devlink, | |
6068 | struct devlink_trap_item *trap_item, | |
6069 | struct genl_info *info) | |
6070 | { | |
6071 | enum devlink_trap_action trap_action; | |
6072 | int err; | |
6073 | ||
6074 | if (!info->attrs[DEVLINK_ATTR_TRAP_ACTION]) | |
6075 | return 0; | |
6076 | ||
6077 | err = devlink_trap_action_get_from_info(info, &trap_action); | |
6078 | if (err) { | |
6079 | NL_SET_ERR_MSG_MOD(info->extack, "Invalid trap action"); | |
6080 | return -EINVAL; | |
6081 | } | |
6082 | ||
6083 | return __devlink_trap_action_set(devlink, trap_item, trap_action, | |
6084 | info->extack); | |
6085 | } | |
6086 | ||
6087 | static int devlink_nl_cmd_trap_set_doit(struct sk_buff *skb, | |
6088 | struct genl_info *info) | |
6089 | { | |
6090 | struct netlink_ext_ack *extack = info->extack; | |
6091 | struct devlink *devlink = info->user_ptr[0]; | |
6092 | struct devlink_trap_item *trap_item; | |
6093 | int err; | |
6094 | ||
6095 | if (list_empty(&devlink->trap_list)) | |
6096 | return -EOPNOTSUPP; | |
6097 | ||
6098 | trap_item = devlink_trap_item_get_from_info(devlink, info); | |
6099 | if (!trap_item) { | |
6100 | NL_SET_ERR_MSG_MOD(extack, "Device did not register this trap"); | |
6101 | return -ENOENT; | |
6102 | } | |
6103 | ||
6104 | err = devlink_trap_action_set(devlink, trap_item, info); | |
6105 | if (err) | |
6106 | return err; | |
6107 | ||
6108 | return 0; | |
6109 | } | |
6110 | ||
6111 | static struct devlink_trap_group_item * | |
6112 | devlink_trap_group_item_lookup(struct devlink *devlink, const char *name) | |
6113 | { | |
6114 | struct devlink_trap_group_item *group_item; | |
6115 | ||
6116 | list_for_each_entry(group_item, &devlink->trap_group_list, list) { | |
6117 | if (!strcmp(group_item->group->name, name)) | |
6118 | return group_item; | |
6119 | } | |
6120 | ||
6121 | return NULL; | |
6122 | } | |
6123 | ||
107f1678 IS |
6124 | static struct devlink_trap_group_item * |
6125 | devlink_trap_group_item_lookup_by_id(struct devlink *devlink, u16 id) | |
6126 | { | |
6127 | struct devlink_trap_group_item *group_item; | |
6128 | ||
6129 | list_for_each_entry(group_item, &devlink->trap_group_list, list) { | |
6130 | if (group_item->group->id == id) | |
6131 | return group_item; | |
6132 | } | |
6133 | ||
6134 | return NULL; | |
6135 | } | |
6136 | ||
0f420b6c IS |
6137 | static struct devlink_trap_group_item * |
6138 | devlink_trap_group_item_get_from_info(struct devlink *devlink, | |
6139 | struct genl_info *info) | |
6140 | { | |
6141 | char *name; | |
6142 | ||
6143 | if (!info->attrs[DEVLINK_ATTR_TRAP_GROUP_NAME]) | |
6144 | return NULL; | |
6145 | name = nla_data(info->attrs[DEVLINK_ATTR_TRAP_GROUP_NAME]); | |
6146 | ||
6147 | return devlink_trap_group_item_lookup(devlink, name); | |
6148 | } | |
6149 | ||
6150 | static int | |
6151 | devlink_nl_trap_group_fill(struct sk_buff *msg, struct devlink *devlink, | |
6152 | const struct devlink_trap_group_item *group_item, | |
6153 | enum devlink_command cmd, u32 portid, u32 seq, | |
6154 | int flags) | |
6155 | { | |
6156 | void *hdr; | |
6157 | int err; | |
6158 | ||
6159 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
6160 | if (!hdr) | |
6161 | return -EMSGSIZE; | |
6162 | ||
6163 | if (devlink_nl_put_handle(msg, devlink)) | |
6164 | goto nla_put_failure; | |
6165 | ||
6166 | if (nla_put_string(msg, DEVLINK_ATTR_TRAP_GROUP_NAME, | |
6167 | group_item->group->name)) | |
6168 | goto nla_put_failure; | |
6169 | ||
6170 | if (group_item->group->generic && | |
6171 | nla_put_flag(msg, DEVLINK_ATTR_TRAP_GENERIC)) | |
6172 | goto nla_put_failure; | |
6173 | ||
f9f54392 IS |
6174 | if (group_item->policer_item && |
6175 | nla_put_u32(msg, DEVLINK_ATTR_TRAP_POLICER_ID, | |
6176 | group_item->policer_item->policer->id)) | |
6177 | goto nla_put_failure; | |
6178 | ||
0f420b6c IS |
6179 | err = devlink_trap_stats_put(msg, group_item->stats); |
6180 | if (err) | |
6181 | goto nla_put_failure; | |
6182 | ||
6183 | genlmsg_end(msg, hdr); | |
6184 | ||
6185 | return 0; | |
6186 | ||
6187 | nla_put_failure: | |
6188 | genlmsg_cancel(msg, hdr); | |
6189 | return -EMSGSIZE; | |
6190 | } | |
6191 | ||
6192 | static int devlink_nl_cmd_trap_group_get_doit(struct sk_buff *skb, | |
6193 | struct genl_info *info) | |
6194 | { | |
6195 | struct netlink_ext_ack *extack = info->extack; | |
6196 | struct devlink *devlink = info->user_ptr[0]; | |
6197 | struct devlink_trap_group_item *group_item; | |
6198 | struct sk_buff *msg; | |
6199 | int err; | |
6200 | ||
6201 | if (list_empty(&devlink->trap_group_list)) | |
6202 | return -EOPNOTSUPP; | |
6203 | ||
6204 | group_item = devlink_trap_group_item_get_from_info(devlink, info); | |
6205 | if (!group_item) { | |
6206 | NL_SET_ERR_MSG_MOD(extack, "Device did not register this trap group"); | |
6207 | return -ENOENT; | |
6208 | } | |
6209 | ||
6210 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
6211 | if (!msg) | |
6212 | return -ENOMEM; | |
6213 | ||
6214 | err = devlink_nl_trap_group_fill(msg, devlink, group_item, | |
6215 | DEVLINK_CMD_TRAP_GROUP_NEW, | |
6216 | info->snd_portid, info->snd_seq, 0); | |
6217 | if (err) | |
6218 | goto err_trap_group_fill; | |
6219 | ||
6220 | return genlmsg_reply(msg, info); | |
6221 | ||
6222 | err_trap_group_fill: | |
6223 | nlmsg_free(msg); | |
6224 | return err; | |
6225 | } | |
6226 | ||
6227 | static int devlink_nl_cmd_trap_group_get_dumpit(struct sk_buff *msg, | |
6228 | struct netlink_callback *cb) | |
6229 | { | |
6230 | enum devlink_command cmd = DEVLINK_CMD_TRAP_GROUP_NEW; | |
6231 | struct devlink_trap_group_item *group_item; | |
6232 | u32 portid = NETLINK_CB(cb->skb).portid; | |
6233 | struct devlink *devlink; | |
6234 | int start = cb->args[0]; | |
6235 | int idx = 0; | |
6236 | int err; | |
6237 | ||
6238 | mutex_lock(&devlink_mutex); | |
6239 | list_for_each_entry(devlink, &devlink_list, list) { | |
6240 | if (!net_eq(devlink_net(devlink), sock_net(msg->sk))) | |
6241 | continue; | |
6242 | mutex_lock(&devlink->lock); | |
6243 | list_for_each_entry(group_item, &devlink->trap_group_list, | |
6244 | list) { | |
6245 | if (idx < start) { | |
6246 | idx++; | |
6247 | continue; | |
6248 | } | |
6249 | err = devlink_nl_trap_group_fill(msg, devlink, | |
6250 | group_item, cmd, | |
6251 | portid, | |
6252 | cb->nlh->nlmsg_seq, | |
6253 | NLM_F_MULTI); | |
6254 | if (err) { | |
6255 | mutex_unlock(&devlink->lock); | |
6256 | goto out; | |
6257 | } | |
6258 | idx++; | |
6259 | } | |
6260 | mutex_unlock(&devlink->lock); | |
6261 | } | |
6262 | out: | |
6263 | mutex_unlock(&devlink_mutex); | |
6264 | ||
6265 | cb->args[0] = idx; | |
6266 | return msg->len; | |
6267 | } | |
6268 | ||
6269 | static int | |
6270 | __devlink_trap_group_action_set(struct devlink *devlink, | |
6271 | struct devlink_trap_group_item *group_item, | |
6272 | enum devlink_trap_action trap_action, | |
6273 | struct netlink_ext_ack *extack) | |
6274 | { | |
6275 | const char *group_name = group_item->group->name; | |
6276 | struct devlink_trap_item *trap_item; | |
6277 | int err; | |
6278 | ||
6279 | list_for_each_entry(trap_item, &devlink->trap_list, list) { | |
107f1678 | 6280 | if (strcmp(trap_item->group_item->group->name, group_name)) |
0f420b6c IS |
6281 | continue; |
6282 | err = __devlink_trap_action_set(devlink, trap_item, | |
6283 | trap_action, extack); | |
6284 | if (err) | |
6285 | return err; | |
6286 | } | |
6287 | ||
6288 | return 0; | |
6289 | } | |
6290 | ||
6291 | static int | |
6292 | devlink_trap_group_action_set(struct devlink *devlink, | |
6293 | struct devlink_trap_group_item *group_item, | |
c064875a | 6294 | struct genl_info *info, bool *p_modified) |
0f420b6c IS |
6295 | { |
6296 | enum devlink_trap_action trap_action; | |
6297 | int err; | |
6298 | ||
6299 | if (!info->attrs[DEVLINK_ATTR_TRAP_ACTION]) | |
6300 | return 0; | |
6301 | ||
6302 | err = devlink_trap_action_get_from_info(info, &trap_action); | |
6303 | if (err) { | |
6304 | NL_SET_ERR_MSG_MOD(info->extack, "Invalid trap action"); | |
6305 | return -EINVAL; | |
6306 | } | |
6307 | ||
6308 | err = __devlink_trap_group_action_set(devlink, group_item, trap_action, | |
6309 | info->extack); | |
6310 | if (err) | |
6311 | return err; | |
6312 | ||
c064875a IS |
6313 | *p_modified = true; |
6314 | ||
6315 | return 0; | |
6316 | } | |
6317 | ||
6318 | static int devlink_trap_group_set(struct devlink *devlink, | |
6319 | struct devlink_trap_group_item *group_item, | |
6320 | struct genl_info *info) | |
6321 | { | |
6322 | struct devlink_trap_policer_item *policer_item; | |
6323 | struct netlink_ext_ack *extack = info->extack; | |
6324 | const struct devlink_trap_policer *policer; | |
6325 | struct nlattr **attrs = info->attrs; | |
6326 | int err; | |
6327 | ||
6328 | if (!attrs[DEVLINK_ATTR_TRAP_POLICER_ID]) | |
6329 | return 0; | |
6330 | ||
6331 | if (!devlink->ops->trap_group_set) | |
6332 | return -EOPNOTSUPP; | |
6333 | ||
6334 | policer_item = group_item->policer_item; | |
6335 | if (attrs[DEVLINK_ATTR_TRAP_POLICER_ID]) { | |
6336 | u32 policer_id; | |
6337 | ||
6338 | policer_id = nla_get_u32(attrs[DEVLINK_ATTR_TRAP_POLICER_ID]); | |
6339 | policer_item = devlink_trap_policer_item_lookup(devlink, | |
6340 | policer_id); | |
6341 | if (policer_id && !policer_item) { | |
6342 | NL_SET_ERR_MSG_MOD(extack, "Device did not register this trap policer"); | |
6343 | return -ENOENT; | |
6344 | } | |
6345 | } | |
6346 | policer = policer_item ? policer_item->policer : NULL; | |
6347 | ||
6348 | err = devlink->ops->trap_group_set(devlink, group_item->group, policer); | |
6349 | if (err) | |
6350 | return err; | |
6351 | ||
6352 | group_item->policer_item = policer_item; | |
6353 | ||
0f420b6c IS |
6354 | return 0; |
6355 | } | |
6356 | ||
6357 | static int devlink_nl_cmd_trap_group_set_doit(struct sk_buff *skb, | |
6358 | struct genl_info *info) | |
6359 | { | |
6360 | struct netlink_ext_ack *extack = info->extack; | |
6361 | struct devlink *devlink = info->user_ptr[0]; | |
6362 | struct devlink_trap_group_item *group_item; | |
c064875a | 6363 | bool modified = false; |
0f420b6c IS |
6364 | int err; |
6365 | ||
6366 | if (list_empty(&devlink->trap_group_list)) | |
6367 | return -EOPNOTSUPP; | |
6368 | ||
6369 | group_item = devlink_trap_group_item_get_from_info(devlink, info); | |
6370 | if (!group_item) { | |
6371 | NL_SET_ERR_MSG_MOD(extack, "Device did not register this trap group"); | |
6372 | return -ENOENT; | |
6373 | } | |
6374 | ||
c064875a IS |
6375 | err = devlink_trap_group_action_set(devlink, group_item, info, |
6376 | &modified); | |
0f420b6c IS |
6377 | if (err) |
6378 | return err; | |
6379 | ||
c064875a IS |
6380 | err = devlink_trap_group_set(devlink, group_item, info); |
6381 | if (err) | |
6382 | goto err_trap_group_set; | |
6383 | ||
0f420b6c | 6384 | return 0; |
c064875a IS |
6385 | |
6386 | err_trap_group_set: | |
6387 | if (modified) | |
6388 | NL_SET_ERR_MSG_MOD(extack, "Trap group set failed, but some changes were committed already"); | |
6389 | return err; | |
0f420b6c IS |
6390 | } |
6391 | ||
1e8c6619 IS |
6392 | static struct devlink_trap_policer_item * |
6393 | devlink_trap_policer_item_get_from_info(struct devlink *devlink, | |
6394 | struct genl_info *info) | |
6395 | { | |
6396 | u32 id; | |
6397 | ||
6398 | if (!info->attrs[DEVLINK_ATTR_TRAP_POLICER_ID]) | |
6399 | return NULL; | |
6400 | id = nla_get_u32(info->attrs[DEVLINK_ATTR_TRAP_POLICER_ID]); | |
6401 | ||
6402 | return devlink_trap_policer_item_lookup(devlink, id); | |
6403 | } | |
6404 | ||
6405 | static int | |
6406 | devlink_trap_policer_stats_put(struct sk_buff *msg, struct devlink *devlink, | |
6407 | const struct devlink_trap_policer *policer) | |
6408 | { | |
6409 | struct nlattr *attr; | |
6410 | u64 drops; | |
6411 | int err; | |
6412 | ||
6413 | if (!devlink->ops->trap_policer_counter_get) | |
6414 | return 0; | |
6415 | ||
6416 | err = devlink->ops->trap_policer_counter_get(devlink, policer, &drops); | |
6417 | if (err) | |
6418 | return err; | |
6419 | ||
6420 | attr = nla_nest_start(msg, DEVLINK_ATTR_STATS); | |
6421 | if (!attr) | |
6422 | return -EMSGSIZE; | |
6423 | ||
6424 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_STATS_RX_DROPPED, drops, | |
6425 | DEVLINK_ATTR_PAD)) | |
6426 | goto nla_put_failure; | |
6427 | ||
6428 | nla_nest_end(msg, attr); | |
6429 | ||
6430 | return 0; | |
6431 | ||
6432 | nla_put_failure: | |
6433 | nla_nest_cancel(msg, attr); | |
6434 | return -EMSGSIZE; | |
6435 | } | |
6436 | ||
6437 | static int | |
6438 | devlink_nl_trap_policer_fill(struct sk_buff *msg, struct devlink *devlink, | |
6439 | const struct devlink_trap_policer_item *policer_item, | |
6440 | enum devlink_command cmd, u32 portid, u32 seq, | |
6441 | int flags) | |
6442 | { | |
6443 | void *hdr; | |
6444 | int err; | |
6445 | ||
6446 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
6447 | if (!hdr) | |
6448 | return -EMSGSIZE; | |
6449 | ||
6450 | if (devlink_nl_put_handle(msg, devlink)) | |
6451 | goto nla_put_failure; | |
6452 | ||
6453 | if (nla_put_u32(msg, DEVLINK_ATTR_TRAP_POLICER_ID, | |
6454 | policer_item->policer->id)) | |
6455 | goto nla_put_failure; | |
6456 | ||
6457 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_TRAP_POLICER_RATE, | |
6458 | policer_item->rate, DEVLINK_ATTR_PAD)) | |
6459 | goto nla_put_failure; | |
6460 | ||
6461 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_TRAP_POLICER_BURST, | |
6462 | policer_item->burst, DEVLINK_ATTR_PAD)) | |
6463 | goto nla_put_failure; | |
6464 | ||
6465 | err = devlink_trap_policer_stats_put(msg, devlink, | |
6466 | policer_item->policer); | |
6467 | if (err) | |
6468 | goto nla_put_failure; | |
6469 | ||
6470 | genlmsg_end(msg, hdr); | |
6471 | ||
6472 | return 0; | |
6473 | ||
6474 | nla_put_failure: | |
6475 | genlmsg_cancel(msg, hdr); | |
6476 | return -EMSGSIZE; | |
6477 | } | |
6478 | ||
6479 | static int devlink_nl_cmd_trap_policer_get_doit(struct sk_buff *skb, | |
6480 | struct genl_info *info) | |
6481 | { | |
6482 | struct devlink_trap_policer_item *policer_item; | |
6483 | struct netlink_ext_ack *extack = info->extack; | |
6484 | struct devlink *devlink = info->user_ptr[0]; | |
6485 | struct sk_buff *msg; | |
6486 | int err; | |
6487 | ||
6488 | if (list_empty(&devlink->trap_policer_list)) | |
6489 | return -EOPNOTSUPP; | |
6490 | ||
6491 | policer_item = devlink_trap_policer_item_get_from_info(devlink, info); | |
6492 | if (!policer_item) { | |
6493 | NL_SET_ERR_MSG_MOD(extack, "Device did not register this trap policer"); | |
6494 | return -ENOENT; | |
6495 | } | |
6496 | ||
6497 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
6498 | if (!msg) | |
6499 | return -ENOMEM; | |
6500 | ||
6501 | err = devlink_nl_trap_policer_fill(msg, devlink, policer_item, | |
6502 | DEVLINK_CMD_TRAP_POLICER_NEW, | |
6503 | info->snd_portid, info->snd_seq, 0); | |
6504 | if (err) | |
6505 | goto err_trap_policer_fill; | |
6506 | ||
6507 | return genlmsg_reply(msg, info); | |
6508 | ||
6509 | err_trap_policer_fill: | |
6510 | nlmsg_free(msg); | |
6511 | return err; | |
6512 | } | |
6513 | ||
6514 | static int devlink_nl_cmd_trap_policer_get_dumpit(struct sk_buff *msg, | |
6515 | struct netlink_callback *cb) | |
6516 | { | |
6517 | enum devlink_command cmd = DEVLINK_CMD_TRAP_POLICER_NEW; | |
6518 | struct devlink_trap_policer_item *policer_item; | |
6519 | u32 portid = NETLINK_CB(cb->skb).portid; | |
6520 | struct devlink *devlink; | |
6521 | int start = cb->args[0]; | |
6522 | int idx = 0; | |
6523 | int err; | |
6524 | ||
6525 | mutex_lock(&devlink_mutex); | |
6526 | list_for_each_entry(devlink, &devlink_list, list) { | |
6527 | if (!net_eq(devlink_net(devlink), sock_net(msg->sk))) | |
6528 | continue; | |
6529 | mutex_lock(&devlink->lock); | |
6530 | list_for_each_entry(policer_item, &devlink->trap_policer_list, | |
6531 | list) { | |
6532 | if (idx < start) { | |
6533 | idx++; | |
6534 | continue; | |
6535 | } | |
6536 | err = devlink_nl_trap_policer_fill(msg, devlink, | |
6537 | policer_item, cmd, | |
6538 | portid, | |
6539 | cb->nlh->nlmsg_seq, | |
6540 | NLM_F_MULTI); | |
6541 | if (err) { | |
6542 | mutex_unlock(&devlink->lock); | |
6543 | goto out; | |
6544 | } | |
6545 | idx++; | |
6546 | } | |
6547 | mutex_unlock(&devlink->lock); | |
6548 | } | |
6549 | out: | |
6550 | mutex_unlock(&devlink_mutex); | |
6551 | ||
6552 | cb->args[0] = idx; | |
6553 | return msg->len; | |
6554 | } | |
6555 | ||
6556 | static int | |
6557 | devlink_trap_policer_set(struct devlink *devlink, | |
6558 | struct devlink_trap_policer_item *policer_item, | |
6559 | struct genl_info *info) | |
6560 | { | |
6561 | struct netlink_ext_ack *extack = info->extack; | |
6562 | struct nlattr **attrs = info->attrs; | |
6563 | u64 rate, burst; | |
6564 | int err; | |
6565 | ||
6566 | rate = policer_item->rate; | |
6567 | burst = policer_item->burst; | |
6568 | ||
6569 | if (attrs[DEVLINK_ATTR_TRAP_POLICER_RATE]) | |
6570 | rate = nla_get_u64(attrs[DEVLINK_ATTR_TRAP_POLICER_RATE]); | |
6571 | ||
6572 | if (attrs[DEVLINK_ATTR_TRAP_POLICER_BURST]) | |
6573 | burst = nla_get_u64(attrs[DEVLINK_ATTR_TRAP_POLICER_BURST]); | |
6574 | ||
6575 | if (rate < policer_item->policer->min_rate) { | |
6576 | NL_SET_ERR_MSG_MOD(extack, "Policer rate lower than limit"); | |
6577 | return -EINVAL; | |
6578 | } | |
6579 | ||
6580 | if (rate > policer_item->policer->max_rate) { | |
6581 | NL_SET_ERR_MSG_MOD(extack, "Policer rate higher than limit"); | |
6582 | return -EINVAL; | |
6583 | } | |
6584 | ||
6585 | if (burst < policer_item->policer->min_burst) { | |
6586 | NL_SET_ERR_MSG_MOD(extack, "Policer burst size lower than limit"); | |
6587 | return -EINVAL; | |
6588 | } | |
6589 | ||
6590 | if (burst > policer_item->policer->max_burst) { | |
6591 | NL_SET_ERR_MSG_MOD(extack, "Policer burst size higher than limit"); | |
6592 | return -EINVAL; | |
6593 | } | |
6594 | ||
6595 | err = devlink->ops->trap_policer_set(devlink, policer_item->policer, | |
6596 | rate, burst, info->extack); | |
6597 | if (err) | |
6598 | return err; | |
6599 | ||
6600 | policer_item->rate = rate; | |
6601 | policer_item->burst = burst; | |
6602 | ||
6603 | return 0; | |
6604 | } | |
6605 | ||
6606 | static int devlink_nl_cmd_trap_policer_set_doit(struct sk_buff *skb, | |
6607 | struct genl_info *info) | |
6608 | { | |
6609 | struct devlink_trap_policer_item *policer_item; | |
6610 | struct netlink_ext_ack *extack = info->extack; | |
6611 | struct devlink *devlink = info->user_ptr[0]; | |
6612 | ||
6613 | if (list_empty(&devlink->trap_policer_list)) | |
6614 | return -EOPNOTSUPP; | |
6615 | ||
6616 | if (!devlink->ops->trap_policer_set) | |
6617 | return -EOPNOTSUPP; | |
6618 | ||
6619 | policer_item = devlink_trap_policer_item_get_from_info(devlink, info); | |
6620 | if (!policer_item) { | |
6621 | NL_SET_ERR_MSG_MOD(extack, "Device did not register this trap policer"); | |
6622 | return -ENOENT; | |
6623 | } | |
6624 | ||
6625 | return devlink_trap_policer_set(devlink, policer_item, info); | |
6626 | } | |
6627 | ||
bfcd3a46 | 6628 | static const struct nla_policy devlink_nl_policy[DEVLINK_ATTR_MAX + 1] = { |
1e8c6619 IS |
6629 | [DEVLINK_ATTR_UNSPEC] = { .strict_start_type = |
6630 | DEVLINK_ATTR_TRAP_POLICER_ID }, | |
bfcd3a46 JP |
6631 | [DEVLINK_ATTR_BUS_NAME] = { .type = NLA_NUL_STRING }, |
6632 | [DEVLINK_ATTR_DEV_NAME] = { .type = NLA_NUL_STRING }, | |
6633 | [DEVLINK_ATTR_PORT_INDEX] = { .type = NLA_U32 }, | |
6634 | [DEVLINK_ATTR_PORT_TYPE] = { .type = NLA_U16 }, | |
6635 | [DEVLINK_ATTR_PORT_SPLIT_COUNT] = { .type = NLA_U32 }, | |
bf797471 JP |
6636 | [DEVLINK_ATTR_SB_INDEX] = { .type = NLA_U32 }, |
6637 | [DEVLINK_ATTR_SB_POOL_INDEX] = { .type = NLA_U16 }, | |
6638 | [DEVLINK_ATTR_SB_POOL_TYPE] = { .type = NLA_U8 }, | |
6639 | [DEVLINK_ATTR_SB_POOL_SIZE] = { .type = NLA_U32 }, | |
6640 | [DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE] = { .type = NLA_U8 }, | |
6641 | [DEVLINK_ATTR_SB_THRESHOLD] = { .type = NLA_U32 }, | |
6642 | [DEVLINK_ATTR_SB_TC_INDEX] = { .type = NLA_U16 }, | |
08f4b591 | 6643 | [DEVLINK_ATTR_ESWITCH_MODE] = { .type = NLA_U16 }, |
59bfde01 | 6644 | [DEVLINK_ATTR_ESWITCH_INLINE_MODE] = { .type = NLA_U8 }, |
f43e9b06 | 6645 | [DEVLINK_ATTR_ESWITCH_ENCAP_MODE] = { .type = NLA_U8 }, |
1555d204 AS |
6646 | [DEVLINK_ATTR_DPIPE_TABLE_NAME] = { .type = NLA_NUL_STRING }, |
6647 | [DEVLINK_ATTR_DPIPE_TABLE_COUNTERS_ENABLED] = { .type = NLA_U8 }, | |
d9f9b9a4 AS |
6648 | [DEVLINK_ATTR_RESOURCE_ID] = { .type = NLA_U64}, |
6649 | [DEVLINK_ATTR_RESOURCE_SIZE] = { .type = NLA_U64}, | |
e3b7ca18 MS |
6650 | [DEVLINK_ATTR_PARAM_NAME] = { .type = NLA_NUL_STRING }, |
6651 | [DEVLINK_ATTR_PARAM_TYPE] = { .type = NLA_U8 }, | |
6652 | [DEVLINK_ATTR_PARAM_VALUE_CMODE] = { .type = NLA_U8 }, | |
d8db7ea5 | 6653 | [DEVLINK_ATTR_REGION_NAME] = { .type = NLA_NUL_STRING }, |
866319bb | 6654 | [DEVLINK_ATTR_REGION_SNAPSHOT_ID] = { .type = NLA_U32 }, |
ff3b63b8 JK |
6655 | [DEVLINK_ATTR_REGION_CHUNK_ADDR] = { .type = NLA_U64 }, |
6656 | [DEVLINK_ATTR_REGION_CHUNK_LEN] = { .type = NLA_U64 }, | |
7afe335a | 6657 | [DEVLINK_ATTR_HEALTH_REPORTER_NAME] = { .type = NLA_NUL_STRING }, |
a1e55ec0 EBE |
6658 | [DEVLINK_ATTR_HEALTH_REPORTER_GRACEFUL_PERIOD] = { .type = NLA_U64 }, |
6659 | [DEVLINK_ATTR_HEALTH_REPORTER_AUTO_RECOVER] = { .type = NLA_U8 }, | |
76726ccb JK |
6660 | [DEVLINK_ATTR_FLASH_UPDATE_FILE_NAME] = { .type = NLA_NUL_STRING }, |
6661 | [DEVLINK_ATTR_FLASH_UPDATE_COMPONENT] = { .type = NLA_NUL_STRING }, | |
0f420b6c IS |
6662 | [DEVLINK_ATTR_TRAP_NAME] = { .type = NLA_NUL_STRING }, |
6663 | [DEVLINK_ATTR_TRAP_ACTION] = { .type = NLA_U8 }, | |
6664 | [DEVLINK_ATTR_TRAP_GROUP_NAME] = { .type = NLA_NUL_STRING }, | |
070c63f2 JP |
6665 | [DEVLINK_ATTR_NETNS_PID] = { .type = NLA_U32 }, |
6666 | [DEVLINK_ATTR_NETNS_FD] = { .type = NLA_U32 }, | |
6667 | [DEVLINK_ATTR_NETNS_ID] = { .type = NLA_U32 }, | |
48bb52c8 | 6668 | [DEVLINK_ATTR_HEALTH_REPORTER_AUTO_DUMP] = { .type = NLA_U8 }, |
1e8c6619 IS |
6669 | [DEVLINK_ATTR_TRAP_POLICER_ID] = { .type = NLA_U32 }, |
6670 | [DEVLINK_ATTR_TRAP_POLICER_RATE] = { .type = NLA_U64 }, | |
6671 | [DEVLINK_ATTR_TRAP_POLICER_BURST] = { .type = NLA_U64 }, | |
bfcd3a46 JP |
6672 | }; |
6673 | ||
6674 | static const struct genl_ops devlink_nl_ops[] = { | |
6675 | { | |
6676 | .cmd = DEVLINK_CMD_GET, | |
ef6243ac | 6677 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bfcd3a46 JP |
6678 | .doit = devlink_nl_cmd_get_doit, |
6679 | .dumpit = devlink_nl_cmd_get_dumpit, | |
1fc2257e | 6680 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, |
bfcd3a46 JP |
6681 | /* can be retrieved by unprivileged users */ |
6682 | }, | |
6683 | { | |
6684 | .cmd = DEVLINK_CMD_PORT_GET, | |
ef6243ac | 6685 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bfcd3a46 JP |
6686 | .doit = devlink_nl_cmd_port_get_doit, |
6687 | .dumpit = devlink_nl_cmd_port_get_dumpit, | |
bfcd3a46 JP |
6688 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, |
6689 | /* can be retrieved by unprivileged users */ | |
6690 | }, | |
6691 | { | |
6692 | .cmd = DEVLINK_CMD_PORT_SET, | |
ef6243ac | 6693 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bfcd3a46 | 6694 | .doit = devlink_nl_cmd_port_set_doit, |
bfcd3a46 JP |
6695 | .flags = GENL_ADMIN_PERM, |
6696 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, | |
6697 | }, | |
6698 | { | |
6699 | .cmd = DEVLINK_CMD_PORT_SPLIT, | |
ef6243ac | 6700 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bfcd3a46 | 6701 | .doit = devlink_nl_cmd_port_split_doit, |
bfcd3a46 | 6702 | .flags = GENL_ADMIN_PERM, |
2406e7e5 AS |
6703 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK | |
6704 | DEVLINK_NL_FLAG_NO_LOCK, | |
bfcd3a46 JP |
6705 | }, |
6706 | { | |
6707 | .cmd = DEVLINK_CMD_PORT_UNSPLIT, | |
ef6243ac | 6708 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bfcd3a46 | 6709 | .doit = devlink_nl_cmd_port_unsplit_doit, |
bfcd3a46 | 6710 | .flags = GENL_ADMIN_PERM, |
2406e7e5 AS |
6711 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK | |
6712 | DEVLINK_NL_FLAG_NO_LOCK, | |
bfcd3a46 | 6713 | }, |
bf797471 JP |
6714 | { |
6715 | .cmd = DEVLINK_CMD_SB_GET, | |
ef6243ac | 6716 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bf797471 JP |
6717 | .doit = devlink_nl_cmd_sb_get_doit, |
6718 | .dumpit = devlink_nl_cmd_sb_get_dumpit, | |
bf797471 JP |
6719 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK | |
6720 | DEVLINK_NL_FLAG_NEED_SB, | |
6721 | /* can be retrieved by unprivileged users */ | |
6722 | }, | |
6723 | { | |
6724 | .cmd = DEVLINK_CMD_SB_POOL_GET, | |
ef6243ac | 6725 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bf797471 JP |
6726 | .doit = devlink_nl_cmd_sb_pool_get_doit, |
6727 | .dumpit = devlink_nl_cmd_sb_pool_get_dumpit, | |
bf797471 JP |
6728 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK | |
6729 | DEVLINK_NL_FLAG_NEED_SB, | |
6730 | /* can be retrieved by unprivileged users */ | |
6731 | }, | |
6732 | { | |
6733 | .cmd = DEVLINK_CMD_SB_POOL_SET, | |
ef6243ac | 6734 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bf797471 | 6735 | .doit = devlink_nl_cmd_sb_pool_set_doit, |
bf797471 JP |
6736 | .flags = GENL_ADMIN_PERM, |
6737 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK | | |
6738 | DEVLINK_NL_FLAG_NEED_SB, | |
6739 | }, | |
6740 | { | |
6741 | .cmd = DEVLINK_CMD_SB_PORT_POOL_GET, | |
ef6243ac | 6742 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bf797471 JP |
6743 | .doit = devlink_nl_cmd_sb_port_pool_get_doit, |
6744 | .dumpit = devlink_nl_cmd_sb_port_pool_get_dumpit, | |
bf797471 JP |
6745 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT | |
6746 | DEVLINK_NL_FLAG_NEED_SB, | |
6747 | /* can be retrieved by unprivileged users */ | |
6748 | }, | |
6749 | { | |
6750 | .cmd = DEVLINK_CMD_SB_PORT_POOL_SET, | |
ef6243ac | 6751 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bf797471 | 6752 | .doit = devlink_nl_cmd_sb_port_pool_set_doit, |
bf797471 JP |
6753 | .flags = GENL_ADMIN_PERM, |
6754 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT | | |
6755 | DEVLINK_NL_FLAG_NEED_SB, | |
6756 | }, | |
6757 | { | |
6758 | .cmd = DEVLINK_CMD_SB_TC_POOL_BIND_GET, | |
ef6243ac | 6759 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bf797471 JP |
6760 | .doit = devlink_nl_cmd_sb_tc_pool_bind_get_doit, |
6761 | .dumpit = devlink_nl_cmd_sb_tc_pool_bind_get_dumpit, | |
bf797471 JP |
6762 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT | |
6763 | DEVLINK_NL_FLAG_NEED_SB, | |
6764 | /* can be retrieved by unprivileged users */ | |
6765 | }, | |
6766 | { | |
6767 | .cmd = DEVLINK_CMD_SB_TC_POOL_BIND_SET, | |
ef6243ac | 6768 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bf797471 | 6769 | .doit = devlink_nl_cmd_sb_tc_pool_bind_set_doit, |
bf797471 JP |
6770 | .flags = GENL_ADMIN_PERM, |
6771 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT | | |
6772 | DEVLINK_NL_FLAG_NEED_SB, | |
6773 | }, | |
df38dafd JP |
6774 | { |
6775 | .cmd = DEVLINK_CMD_SB_OCC_SNAPSHOT, | |
ef6243ac | 6776 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
df38dafd | 6777 | .doit = devlink_nl_cmd_sb_occ_snapshot_doit, |
df38dafd JP |
6778 | .flags = GENL_ADMIN_PERM, |
6779 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK | | |
2406e7e5 | 6780 | DEVLINK_NL_FLAG_NEED_SB, |
df38dafd JP |
6781 | }, |
6782 | { | |
6783 | .cmd = DEVLINK_CMD_SB_OCC_MAX_CLEAR, | |
ef6243ac | 6784 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
df38dafd | 6785 | .doit = devlink_nl_cmd_sb_occ_max_clear_doit, |
df38dafd JP |
6786 | .flags = GENL_ADMIN_PERM, |
6787 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK | | |
2406e7e5 | 6788 | DEVLINK_NL_FLAG_NEED_SB, |
df38dafd | 6789 | }, |
08f4b591 | 6790 | { |
adf200f3 | 6791 | .cmd = DEVLINK_CMD_ESWITCH_GET, |
ef6243ac | 6792 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
adf200f3 | 6793 | .doit = devlink_nl_cmd_eswitch_get_doit, |
08f4b591 | 6794 | .flags = GENL_ADMIN_PERM, |
98fed6eb PP |
6795 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK | |
6796 | DEVLINK_NL_FLAG_NO_LOCK, | |
08f4b591 OG |
6797 | }, |
6798 | { | |
adf200f3 | 6799 | .cmd = DEVLINK_CMD_ESWITCH_SET, |
ef6243ac | 6800 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
adf200f3 | 6801 | .doit = devlink_nl_cmd_eswitch_set_doit, |
08f4b591 | 6802 | .flags = GENL_ADMIN_PERM, |
7ac1cc9a JK |
6803 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK | |
6804 | DEVLINK_NL_FLAG_NO_LOCK, | |
08f4b591 | 6805 | }, |
1555d204 AS |
6806 | { |
6807 | .cmd = DEVLINK_CMD_DPIPE_TABLE_GET, | |
ef6243ac | 6808 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
1555d204 | 6809 | .doit = devlink_nl_cmd_dpipe_table_get, |
1555d204 | 6810 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, |
67ae686b | 6811 | /* can be retrieved by unprivileged users */ |
1555d204 AS |
6812 | }, |
6813 | { | |
6814 | .cmd = DEVLINK_CMD_DPIPE_ENTRIES_GET, | |
ef6243ac | 6815 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
1555d204 | 6816 | .doit = devlink_nl_cmd_dpipe_entries_get, |
1555d204 | 6817 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, |
67ae686b | 6818 | /* can be retrieved by unprivileged users */ |
1555d204 AS |
6819 | }, |
6820 | { | |
6821 | .cmd = DEVLINK_CMD_DPIPE_HEADERS_GET, | |
ef6243ac | 6822 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
1555d204 | 6823 | .doit = devlink_nl_cmd_dpipe_headers_get, |
1555d204 | 6824 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, |
67ae686b | 6825 | /* can be retrieved by unprivileged users */ |
1555d204 AS |
6826 | }, |
6827 | { | |
6828 | .cmd = DEVLINK_CMD_DPIPE_TABLE_COUNTERS_SET, | |
ef6243ac | 6829 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
1555d204 | 6830 | .doit = devlink_nl_cmd_dpipe_table_counters_set, |
1555d204 AS |
6831 | .flags = GENL_ADMIN_PERM, |
6832 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, | |
6833 | }, | |
d9f9b9a4 AS |
6834 | { |
6835 | .cmd = DEVLINK_CMD_RESOURCE_SET, | |
ef6243ac | 6836 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
d9f9b9a4 | 6837 | .doit = devlink_nl_cmd_resource_set, |
d9f9b9a4 AS |
6838 | .flags = GENL_ADMIN_PERM, |
6839 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, | |
6840 | }, | |
6841 | { | |
6842 | .cmd = DEVLINK_CMD_RESOURCE_DUMP, | |
ef6243ac | 6843 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
d9f9b9a4 | 6844 | .doit = devlink_nl_cmd_resource_dump, |
d9f9b9a4 | 6845 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, |
67ae686b | 6846 | /* can be retrieved by unprivileged users */ |
d9f9b9a4 | 6847 | }, |
2d8dc5bb AS |
6848 | { |
6849 | .cmd = DEVLINK_CMD_RELOAD, | |
ef6243ac | 6850 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
2d8dc5bb | 6851 | .doit = devlink_nl_cmd_reload, |
2d8dc5bb AS |
6852 | .flags = GENL_ADMIN_PERM, |
6853 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK | | |
6854 | DEVLINK_NL_FLAG_NO_LOCK, | |
6855 | }, | |
45f05def MS |
6856 | { |
6857 | .cmd = DEVLINK_CMD_PARAM_GET, | |
ef6243ac | 6858 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
45f05def MS |
6859 | .doit = devlink_nl_cmd_param_get_doit, |
6860 | .dumpit = devlink_nl_cmd_param_get_dumpit, | |
45f05def MS |
6861 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, |
6862 | /* can be retrieved by unprivileged users */ | |
6863 | }, | |
e3b7ca18 MS |
6864 | { |
6865 | .cmd = DEVLINK_CMD_PARAM_SET, | |
ef6243ac | 6866 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
e3b7ca18 | 6867 | .doit = devlink_nl_cmd_param_set_doit, |
e3b7ca18 MS |
6868 | .flags = GENL_ADMIN_PERM, |
6869 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, | |
6870 | }, | |
f4601dee VV |
6871 | { |
6872 | .cmd = DEVLINK_CMD_PORT_PARAM_GET, | |
ef6243ac | 6873 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
f4601dee VV |
6874 | .doit = devlink_nl_cmd_port_param_get_doit, |
6875 | .dumpit = devlink_nl_cmd_port_param_get_dumpit, | |
f4601dee VV |
6876 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, |
6877 | /* can be retrieved by unprivileged users */ | |
6878 | }, | |
9c54873b VV |
6879 | { |
6880 | .cmd = DEVLINK_CMD_PORT_PARAM_SET, | |
ef6243ac | 6881 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
9c54873b | 6882 | .doit = devlink_nl_cmd_port_param_set_doit, |
9c54873b VV |
6883 | .flags = GENL_ADMIN_PERM, |
6884 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, | |
6885 | }, | |
d8db7ea5 AV |
6886 | { |
6887 | .cmd = DEVLINK_CMD_REGION_GET, | |
ef6243ac | 6888 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
d8db7ea5 AV |
6889 | .doit = devlink_nl_cmd_region_get_doit, |
6890 | .dumpit = devlink_nl_cmd_region_get_dumpit, | |
d8db7ea5 AV |
6891 | .flags = GENL_ADMIN_PERM, |
6892 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, | |
6893 | }, | |
b9a17abf JK |
6894 | { |
6895 | .cmd = DEVLINK_CMD_REGION_NEW, | |
6896 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, | |
6897 | .doit = devlink_nl_cmd_region_new, | |
6898 | .flags = GENL_ADMIN_PERM, | |
6899 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, | |
6900 | }, | |
866319bb AV |
6901 | { |
6902 | .cmd = DEVLINK_CMD_REGION_DEL, | |
ef6243ac | 6903 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
866319bb | 6904 | .doit = devlink_nl_cmd_region_del, |
866319bb AV |
6905 | .flags = GENL_ADMIN_PERM, |
6906 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, | |
6907 | }, | |
4e54795a AV |
6908 | { |
6909 | .cmd = DEVLINK_CMD_REGION_READ, | |
ee85da53 JP |
6910 | .validate = GENL_DONT_VALIDATE_STRICT | |
6911 | GENL_DONT_VALIDATE_DUMP_STRICT, | |
4e54795a | 6912 | .dumpit = devlink_nl_cmd_region_read_dumpit, |
4e54795a AV |
6913 | .flags = GENL_ADMIN_PERM, |
6914 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, | |
6915 | }, | |
f9cf2288 JK |
6916 | { |
6917 | .cmd = DEVLINK_CMD_INFO_GET, | |
ef6243ac | 6918 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
f9cf2288 JK |
6919 | .doit = devlink_nl_cmd_info_get_doit, |
6920 | .dumpit = devlink_nl_cmd_info_get_dumpit, | |
f9cf2288 JK |
6921 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, |
6922 | /* can be retrieved by unprivileged users */ | |
6923 | }, | |
7afe335a EBE |
6924 | { |
6925 | .cmd = DEVLINK_CMD_HEALTH_REPORTER_GET, | |
ef6243ac | 6926 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
7afe335a EBE |
6927 | .doit = devlink_nl_cmd_health_reporter_get_doit, |
6928 | .dumpit = devlink_nl_cmd_health_reporter_get_dumpit, | |
b587bdaf MS |
6929 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK | |
6930 | DEVLINK_NL_FLAG_NO_LOCK, | |
7afe335a EBE |
6931 | /* can be retrieved by unprivileged users */ |
6932 | }, | |
a1e55ec0 EBE |
6933 | { |
6934 | .cmd = DEVLINK_CMD_HEALTH_REPORTER_SET, | |
ef6243ac | 6935 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
a1e55ec0 | 6936 | .doit = devlink_nl_cmd_health_reporter_set_doit, |
a1e55ec0 | 6937 | .flags = GENL_ADMIN_PERM, |
b587bdaf MS |
6938 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK | |
6939 | DEVLINK_NL_FLAG_NO_LOCK, | |
a1e55ec0 | 6940 | }, |
20a0943a EBE |
6941 | { |
6942 | .cmd = DEVLINK_CMD_HEALTH_REPORTER_RECOVER, | |
ef6243ac | 6943 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
20a0943a | 6944 | .doit = devlink_nl_cmd_health_reporter_recover_doit, |
20a0943a | 6945 | .flags = GENL_ADMIN_PERM, |
b587bdaf MS |
6946 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK | |
6947 | DEVLINK_NL_FLAG_NO_LOCK, | |
20a0943a | 6948 | }, |
fca42a27 EBE |
6949 | { |
6950 | .cmd = DEVLINK_CMD_HEALTH_REPORTER_DIAGNOSE, | |
ef6243ac | 6951 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
fca42a27 | 6952 | .doit = devlink_nl_cmd_health_reporter_diagnose_doit, |
fca42a27 | 6953 | .flags = GENL_ADMIN_PERM, |
b587bdaf MS |
6954 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK | |
6955 | DEVLINK_NL_FLAG_NO_LOCK, | |
fca42a27 | 6956 | }, |
35455e23 EBE |
6957 | { |
6958 | .cmd = DEVLINK_CMD_HEALTH_REPORTER_DUMP_GET, | |
82a843de JP |
6959 | .validate = GENL_DONT_VALIDATE_STRICT | |
6960 | GENL_DONT_VALIDATE_DUMP_STRICT, | |
e44ef4e4 | 6961 | .dumpit = devlink_nl_cmd_health_reporter_dump_get_dumpit, |
35455e23 EBE |
6962 | .flags = GENL_ADMIN_PERM, |
6963 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK | | |
6964 | DEVLINK_NL_FLAG_NO_LOCK, | |
6965 | }, | |
6966 | { | |
6967 | .cmd = DEVLINK_CMD_HEALTH_REPORTER_DUMP_CLEAR, | |
ef6243ac | 6968 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
35455e23 | 6969 | .doit = devlink_nl_cmd_health_reporter_dump_clear_doit, |
35455e23 EBE |
6970 | .flags = GENL_ADMIN_PERM, |
6971 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK | | |
6972 | DEVLINK_NL_FLAG_NO_LOCK, | |
6973 | }, | |
76726ccb JK |
6974 | { |
6975 | .cmd = DEVLINK_CMD_FLASH_UPDATE, | |
ef6243ac | 6976 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
76726ccb | 6977 | .doit = devlink_nl_cmd_flash_update, |
76726ccb JK |
6978 | .flags = GENL_ADMIN_PERM, |
6979 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, | |
6980 | }, | |
0f420b6c IS |
6981 | { |
6982 | .cmd = DEVLINK_CMD_TRAP_GET, | |
6983 | .doit = devlink_nl_cmd_trap_get_doit, | |
6984 | .dumpit = devlink_nl_cmd_trap_get_dumpit, | |
6985 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, | |
6986 | /* can be retrieved by unprivileged users */ | |
6987 | }, | |
6988 | { | |
6989 | .cmd = DEVLINK_CMD_TRAP_SET, | |
6990 | .doit = devlink_nl_cmd_trap_set_doit, | |
6991 | .flags = GENL_ADMIN_PERM, | |
6992 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, | |
6993 | }, | |
6994 | { | |
6995 | .cmd = DEVLINK_CMD_TRAP_GROUP_GET, | |
6996 | .doit = devlink_nl_cmd_trap_group_get_doit, | |
6997 | .dumpit = devlink_nl_cmd_trap_group_get_dumpit, | |
6998 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, | |
6999 | /* can be retrieved by unprivileged users */ | |
7000 | }, | |
7001 | { | |
7002 | .cmd = DEVLINK_CMD_TRAP_GROUP_SET, | |
7003 | .doit = devlink_nl_cmd_trap_group_set_doit, | |
7004 | .flags = GENL_ADMIN_PERM, | |
7005 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, | |
7006 | }, | |
1e8c6619 IS |
7007 | { |
7008 | .cmd = DEVLINK_CMD_TRAP_POLICER_GET, | |
7009 | .doit = devlink_nl_cmd_trap_policer_get_doit, | |
7010 | .dumpit = devlink_nl_cmd_trap_policer_get_dumpit, | |
7011 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, | |
7012 | /* can be retrieved by unprivileged users */ | |
7013 | }, | |
7014 | { | |
7015 | .cmd = DEVLINK_CMD_TRAP_POLICER_SET, | |
7016 | .doit = devlink_nl_cmd_trap_policer_set_doit, | |
7017 | .flags = GENL_ADMIN_PERM, | |
7018 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, | |
7019 | }, | |
bfcd3a46 JP |
7020 | }; |
7021 | ||
56989f6d | 7022 | static struct genl_family devlink_nl_family __ro_after_init = { |
489111e5 JB |
7023 | .name = DEVLINK_GENL_NAME, |
7024 | .version = DEVLINK_GENL_VERSION, | |
7025 | .maxattr = DEVLINK_ATTR_MAX, | |
3b0f31f2 | 7026 | .policy = devlink_nl_policy, |
489111e5 JB |
7027 | .netnsok = true, |
7028 | .pre_doit = devlink_nl_pre_doit, | |
7029 | .post_doit = devlink_nl_post_doit, | |
7030 | .module = THIS_MODULE, | |
7031 | .ops = devlink_nl_ops, | |
7032 | .n_ops = ARRAY_SIZE(devlink_nl_ops), | |
7033 | .mcgrps = devlink_nl_mcgrps, | |
7034 | .n_mcgrps = ARRAY_SIZE(devlink_nl_mcgrps), | |
7035 | }; | |
7036 | ||
bfcd3a46 JP |
7037 | /** |
7038 | * devlink_alloc - Allocate new devlink instance resources | |
7039 | * | |
7040 | * @ops: ops | |
7041 | * @priv_size: size of user private data | |
7042 | * | |
7043 | * Allocate new devlink instance resources, including devlink index | |
7044 | * and name. | |
7045 | */ | |
7046 | struct devlink *devlink_alloc(const struct devlink_ops *ops, size_t priv_size) | |
7047 | { | |
7048 | struct devlink *devlink; | |
7049 | ||
be6fe1d8 JK |
7050 | if (WARN_ON(!ops)) |
7051 | return NULL; | |
7052 | ||
bfcd3a46 JP |
7053 | devlink = kzalloc(sizeof(*devlink) + priv_size, GFP_KERNEL); |
7054 | if (!devlink) | |
7055 | return NULL; | |
7056 | devlink->ops = ops; | |
12102436 | 7057 | xa_init_flags(&devlink->snapshot_ids, XA_FLAGS_ALLOC); |
8273fd84 | 7058 | __devlink_net_set(devlink, &init_net); |
bfcd3a46 | 7059 | INIT_LIST_HEAD(&devlink->port_list); |
bf797471 | 7060 | INIT_LIST_HEAD(&devlink->sb_list); |
1555d204 | 7061 | INIT_LIST_HEAD_RCU(&devlink->dpipe_table_list); |
d9f9b9a4 | 7062 | INIT_LIST_HEAD(&devlink->resource_list); |
eabaef18 | 7063 | INIT_LIST_HEAD(&devlink->param_list); |
b16ebe92 | 7064 | INIT_LIST_HEAD(&devlink->region_list); |
a0bdcc59 | 7065 | INIT_LIST_HEAD(&devlink->reporter_list); |
0f420b6c IS |
7066 | INIT_LIST_HEAD(&devlink->trap_list); |
7067 | INIT_LIST_HEAD(&devlink->trap_group_list); | |
1e8c6619 | 7068 | INIT_LIST_HEAD(&devlink->trap_policer_list); |
2406e7e5 | 7069 | mutex_init(&devlink->lock); |
b587bdaf | 7070 | mutex_init(&devlink->reporters_lock); |
bfcd3a46 JP |
7071 | return devlink; |
7072 | } | |
7073 | EXPORT_SYMBOL_GPL(devlink_alloc); | |
7074 | ||
7075 | /** | |
7076 | * devlink_register - Register devlink instance | |
7077 | * | |
7078 | * @devlink: devlink | |
eeaadd82 | 7079 | * @dev: parent device |
bfcd3a46 JP |
7080 | */ |
7081 | int devlink_register(struct devlink *devlink, struct device *dev) | |
7082 | { | |
7083 | mutex_lock(&devlink_mutex); | |
7084 | devlink->dev = dev; | |
8273fd84 | 7085 | devlink->registered = true; |
bfcd3a46 JP |
7086 | list_add_tail(&devlink->list, &devlink_list); |
7087 | devlink_notify(devlink, DEVLINK_CMD_NEW); | |
7088 | mutex_unlock(&devlink_mutex); | |
7089 | return 0; | |
7090 | } | |
7091 | EXPORT_SYMBOL_GPL(devlink_register); | |
7092 | ||
7093 | /** | |
7094 | * devlink_unregister - Unregister devlink instance | |
7095 | * | |
7096 | * @devlink: devlink | |
7097 | */ | |
7098 | void devlink_unregister(struct devlink *devlink) | |
7099 | { | |
7100 | mutex_lock(&devlink_mutex); | |
a0c76345 JP |
7101 | WARN_ON(devlink_reload_supported(devlink) && |
7102 | devlink->reload_enabled); | |
bfcd3a46 JP |
7103 | devlink_notify(devlink, DEVLINK_CMD_DEL); |
7104 | list_del(&devlink->list); | |
7105 | mutex_unlock(&devlink_mutex); | |
7106 | } | |
7107 | EXPORT_SYMBOL_GPL(devlink_unregister); | |
7108 | ||
a0c76345 JP |
7109 | /** |
7110 | * devlink_reload_enable - Enable reload of devlink instance | |
7111 | * | |
7112 | * @devlink: devlink | |
7113 | * | |
7114 | * Should be called at end of device initialization | |
7115 | * process when reload operation is supported. | |
7116 | */ | |
7117 | void devlink_reload_enable(struct devlink *devlink) | |
7118 | { | |
7119 | mutex_lock(&devlink_mutex); | |
7120 | devlink->reload_enabled = true; | |
7121 | mutex_unlock(&devlink_mutex); | |
7122 | } | |
7123 | EXPORT_SYMBOL_GPL(devlink_reload_enable); | |
7124 | ||
7125 | /** | |
7126 | * devlink_reload_disable - Disable reload of devlink instance | |
7127 | * | |
7128 | * @devlink: devlink | |
7129 | * | |
7130 | * Should be called at the beginning of device cleanup | |
7131 | * process when reload operation is supported. | |
7132 | */ | |
7133 | void devlink_reload_disable(struct devlink *devlink) | |
7134 | { | |
7135 | mutex_lock(&devlink_mutex); | |
7136 | /* Mutex is taken which ensures that no reload operation is in | |
7137 | * progress while setting up forbidded flag. | |
7138 | */ | |
7139 | devlink->reload_enabled = false; | |
7140 | mutex_unlock(&devlink_mutex); | |
7141 | } | |
7142 | EXPORT_SYMBOL_GPL(devlink_reload_disable); | |
7143 | ||
bfcd3a46 JP |
7144 | /** |
7145 | * devlink_free - Free devlink instance resources | |
7146 | * | |
7147 | * @devlink: devlink | |
7148 | */ | |
7149 | void devlink_free(struct devlink *devlink) | |
7150 | { | |
b587bdaf | 7151 | mutex_destroy(&devlink->reporters_lock); |
375cf8c6 | 7152 | mutex_destroy(&devlink->lock); |
1e8c6619 | 7153 | WARN_ON(!list_empty(&devlink->trap_policer_list)); |
0f420b6c IS |
7154 | WARN_ON(!list_empty(&devlink->trap_group_list)); |
7155 | WARN_ON(!list_empty(&devlink->trap_list)); | |
b904aada PP |
7156 | WARN_ON(!list_empty(&devlink->reporter_list)); |
7157 | WARN_ON(!list_empty(&devlink->region_list)); | |
7158 | WARN_ON(!list_empty(&devlink->param_list)); | |
7159 | WARN_ON(!list_empty(&devlink->resource_list)); | |
7160 | WARN_ON(!list_empty(&devlink->dpipe_table_list)); | |
7161 | WARN_ON(!list_empty(&devlink->sb_list)); | |
7162 | WARN_ON(!list_empty(&devlink->port_list)); | |
7163 | ||
12102436 JK |
7164 | xa_destroy(&devlink->snapshot_ids); |
7165 | ||
bfcd3a46 JP |
7166 | kfree(devlink); |
7167 | } | |
7168 | EXPORT_SYMBOL_GPL(devlink_free); | |
7169 | ||
136bf27f JP |
7170 | static void devlink_port_type_warn(struct work_struct *work) |
7171 | { | |
7172 | WARN(true, "Type was not set for devlink port."); | |
7173 | } | |
7174 | ||
7175 | static bool devlink_port_type_should_warn(struct devlink_port *devlink_port) | |
7176 | { | |
7177 | /* Ignore CPU and DSA flavours. */ | |
7178 | return devlink_port->attrs.flavour != DEVLINK_PORT_FLAVOUR_CPU && | |
7179 | devlink_port->attrs.flavour != DEVLINK_PORT_FLAVOUR_DSA; | |
7180 | } | |
7181 | ||
4c582234 | 7182 | #define DEVLINK_PORT_TYPE_WARN_TIMEOUT (HZ * 3600) |
136bf27f JP |
7183 | |
7184 | static void devlink_port_type_warn_schedule(struct devlink_port *devlink_port) | |
7185 | { | |
7186 | if (!devlink_port_type_should_warn(devlink_port)) | |
7187 | return; | |
7188 | /* Schedule a work to WARN in case driver does not set port | |
7189 | * type within timeout. | |
7190 | */ | |
7191 | schedule_delayed_work(&devlink_port->type_warn_dw, | |
7192 | DEVLINK_PORT_TYPE_WARN_TIMEOUT); | |
7193 | } | |
7194 | ||
7195 | static void devlink_port_type_warn_cancel(struct devlink_port *devlink_port) | |
7196 | { | |
7197 | if (!devlink_port_type_should_warn(devlink_port)) | |
7198 | return; | |
7199 | cancel_delayed_work_sync(&devlink_port->type_warn_dw); | |
7200 | } | |
7201 | ||
bfcd3a46 JP |
7202 | /** |
7203 | * devlink_port_register - Register devlink port | |
7204 | * | |
7205 | * @devlink: devlink | |
7206 | * @devlink_port: devlink port | |
eeaadd82 | 7207 | * @port_index: driver-specific numerical identifier of the port |
bfcd3a46 JP |
7208 | * |
7209 | * Register devlink port with provided port index. User can use | |
7210 | * any indexing, even hw-related one. devlink_port structure | |
7211 | * is convenient to be embedded inside user driver private structure. | |
7212 | * Note that the caller should take care of zeroing the devlink_port | |
7213 | * structure. | |
7214 | */ | |
7215 | int devlink_port_register(struct devlink *devlink, | |
7216 | struct devlink_port *devlink_port, | |
7217 | unsigned int port_index) | |
7218 | { | |
2406e7e5 | 7219 | mutex_lock(&devlink->lock); |
bfcd3a46 | 7220 | if (devlink_port_index_exists(devlink, port_index)) { |
2406e7e5 | 7221 | mutex_unlock(&devlink->lock); |
bfcd3a46 JP |
7222 | return -EEXIST; |
7223 | } | |
7224 | devlink_port->devlink = devlink; | |
7225 | devlink_port->index = port_index; | |
bfcd3a46 | 7226 | devlink_port->registered = true; |
b8f97554 | 7227 | spin_lock_init(&devlink_port->type_lock); |
bfcd3a46 | 7228 | list_add_tail(&devlink_port->list, &devlink->port_list); |
39e6160e | 7229 | INIT_LIST_HEAD(&devlink_port->param_list); |
2406e7e5 | 7230 | mutex_unlock(&devlink->lock); |
136bf27f JP |
7231 | INIT_DELAYED_WORK(&devlink_port->type_warn_dw, &devlink_port_type_warn); |
7232 | devlink_port_type_warn_schedule(devlink_port); | |
bfcd3a46 JP |
7233 | devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_NEW); |
7234 | return 0; | |
7235 | } | |
7236 | EXPORT_SYMBOL_GPL(devlink_port_register); | |
7237 | ||
7238 | /** | |
7239 | * devlink_port_unregister - Unregister devlink port | |
7240 | * | |
7241 | * @devlink_port: devlink port | |
7242 | */ | |
7243 | void devlink_port_unregister(struct devlink_port *devlink_port) | |
7244 | { | |
2406e7e5 AS |
7245 | struct devlink *devlink = devlink_port->devlink; |
7246 | ||
136bf27f | 7247 | devlink_port_type_warn_cancel(devlink_port); |
bfcd3a46 | 7248 | devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_DEL); |
2406e7e5 | 7249 | mutex_lock(&devlink->lock); |
bfcd3a46 | 7250 | list_del(&devlink_port->list); |
2406e7e5 | 7251 | mutex_unlock(&devlink->lock); |
bfcd3a46 JP |
7252 | } |
7253 | EXPORT_SYMBOL_GPL(devlink_port_unregister); | |
7254 | ||
7255 | static void __devlink_port_type_set(struct devlink_port *devlink_port, | |
7256 | enum devlink_port_type type, | |
7257 | void *type_dev) | |
7258 | { | |
2b239e70 JP |
7259 | if (WARN_ON(!devlink_port->registered)) |
7260 | return; | |
136bf27f | 7261 | devlink_port_type_warn_cancel(devlink_port); |
0f420b6c | 7262 | spin_lock_bh(&devlink_port->type_lock); |
bfcd3a46 JP |
7263 | devlink_port->type = type; |
7264 | devlink_port->type_dev = type_dev; | |
0f420b6c | 7265 | spin_unlock_bh(&devlink_port->type_lock); |
bfcd3a46 JP |
7266 | devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_NEW); |
7267 | } | |
7268 | ||
7269 | /** | |
7270 | * devlink_port_type_eth_set - Set port type to Ethernet | |
7271 | * | |
7272 | * @devlink_port: devlink port | |
7273 | * @netdev: related netdevice | |
7274 | */ | |
7275 | void devlink_port_type_eth_set(struct devlink_port *devlink_port, | |
7276 | struct net_device *netdev) | |
7277 | { | |
119c0b57 JP |
7278 | const struct net_device_ops *ops = netdev->netdev_ops; |
7279 | ||
746364f2 JP |
7280 | /* If driver registers devlink port, it should set devlink port |
7281 | * attributes accordingly so the compat functions are called | |
7282 | * and the original ops are not used. | |
7283 | */ | |
119c0b57 | 7284 | if (ops->ndo_get_phys_port_name) { |
746364f2 JP |
7285 | /* Some drivers use the same set of ndos for netdevs |
7286 | * that have devlink_port registered and also for | |
7287 | * those who don't. Make sure that ndo_get_phys_port_name | |
7288 | * returns -EOPNOTSUPP here in case it is defined. | |
7289 | * Warn if not. | |
7290 | */ | |
746364f2 JP |
7291 | char name[IFNAMSIZ]; |
7292 | int err; | |
7293 | ||
7294 | err = ops->ndo_get_phys_port_name(netdev, name, sizeof(name)); | |
7295 | WARN_ON(err != -EOPNOTSUPP); | |
7296 | } | |
119c0b57 JP |
7297 | if (ops->ndo_get_port_parent_id) { |
7298 | /* Some drivers use the same set of ndos for netdevs | |
7299 | * that have devlink_port registered and also for | |
7300 | * those who don't. Make sure that ndo_get_port_parent_id | |
7301 | * returns -EOPNOTSUPP here in case it is defined. | |
7302 | * Warn if not. | |
7303 | */ | |
7304 | struct netdev_phys_item_id ppid; | |
7305 | int err; | |
7306 | ||
7307 | err = ops->ndo_get_port_parent_id(netdev, &ppid); | |
7308 | WARN_ON(err != -EOPNOTSUPP); | |
7309 | } | |
773b1f38 | 7310 | __devlink_port_type_set(devlink_port, DEVLINK_PORT_TYPE_ETH, netdev); |
bfcd3a46 JP |
7311 | } |
7312 | EXPORT_SYMBOL_GPL(devlink_port_type_eth_set); | |
7313 | ||
7314 | /** | |
7315 | * devlink_port_type_ib_set - Set port type to InfiniBand | |
7316 | * | |
7317 | * @devlink_port: devlink port | |
7318 | * @ibdev: related IB device | |
7319 | */ | |
7320 | void devlink_port_type_ib_set(struct devlink_port *devlink_port, | |
7321 | struct ib_device *ibdev) | |
7322 | { | |
773b1f38 | 7323 | __devlink_port_type_set(devlink_port, DEVLINK_PORT_TYPE_IB, ibdev); |
bfcd3a46 JP |
7324 | } |
7325 | EXPORT_SYMBOL_GPL(devlink_port_type_ib_set); | |
7326 | ||
7327 | /** | |
7328 | * devlink_port_type_clear - Clear port type | |
7329 | * | |
7330 | * @devlink_port: devlink port | |
7331 | */ | |
7332 | void devlink_port_type_clear(struct devlink_port *devlink_port) | |
7333 | { | |
773b1f38 | 7334 | __devlink_port_type_set(devlink_port, DEVLINK_PORT_TYPE_NOTSET, NULL); |
136bf27f | 7335 | devlink_port_type_warn_schedule(devlink_port); |
bfcd3a46 JP |
7336 | } |
7337 | EXPORT_SYMBOL_GPL(devlink_port_type_clear); | |
7338 | ||
378ef01b PP |
7339 | static int __devlink_port_attrs_set(struct devlink_port *devlink_port, |
7340 | enum devlink_port_flavour flavour, | |
7341 | const unsigned char *switch_id, | |
7342 | unsigned char switch_id_len) | |
7343 | { | |
7344 | struct devlink_port_attrs *attrs = &devlink_port->attrs; | |
7345 | ||
7346 | if (WARN_ON(devlink_port->registered)) | |
7347 | return -EEXIST; | |
7348 | attrs->set = true; | |
7349 | attrs->flavour = flavour; | |
7350 | if (switch_id) { | |
7351 | attrs->switch_port = true; | |
7352 | if (WARN_ON(switch_id_len > MAX_PHYS_ITEM_ID_LEN)) | |
7353 | switch_id_len = MAX_PHYS_ITEM_ID_LEN; | |
7354 | memcpy(attrs->switch_id.id, switch_id, switch_id_len); | |
7355 | attrs->switch_id.id_len = switch_id_len; | |
7356 | } else { | |
7357 | attrs->switch_port = false; | |
7358 | } | |
7359 | return 0; | |
7360 | } | |
7361 | ||
bfcd3a46 | 7362 | /** |
b9ffcbaf | 7363 | * devlink_port_attrs_set - Set port attributes |
bfcd3a46 JP |
7364 | * |
7365 | * @devlink_port: devlink port | |
5ec1380a | 7366 | * @flavour: flavour of the port |
b9ffcbaf JP |
7367 | * @port_number: number of the port that is facing user, for example |
7368 | * the front panel port number | |
7369 | * @split: indicates if this is split port | |
7370 | * @split_subport_number: if the port is split, this is the number | |
7371 | * of subport. | |
bec5267c JP |
7372 | * @switch_id: if the port is part of switch, this is buffer with ID, |
7373 | * otwerwise this is NULL | |
7374 | * @switch_id_len: length of the switch_id buffer | |
bfcd3a46 | 7375 | */ |
b9ffcbaf | 7376 | void devlink_port_attrs_set(struct devlink_port *devlink_port, |
5ec1380a | 7377 | enum devlink_port_flavour flavour, |
b9ffcbaf | 7378 | u32 port_number, bool split, |
bec5267c JP |
7379 | u32 split_subport_number, |
7380 | const unsigned char *switch_id, | |
7381 | unsigned char switch_id_len) | |
bfcd3a46 | 7382 | { |
b9ffcbaf | 7383 | struct devlink_port_attrs *attrs = &devlink_port->attrs; |
378ef01b | 7384 | int ret; |
b9ffcbaf | 7385 | |
378ef01b PP |
7386 | ret = __devlink_port_attrs_set(devlink_port, flavour, |
7387 | switch_id, switch_id_len); | |
7388 | if (ret) | |
45b86112 | 7389 | return; |
b9ffcbaf | 7390 | attrs->split = split; |
378ef01b PP |
7391 | attrs->phys.port_number = port_number; |
7392 | attrs->phys.split_subport_number = split_subport_number; | |
bfcd3a46 | 7393 | } |
b9ffcbaf | 7394 | EXPORT_SYMBOL_GPL(devlink_port_attrs_set); |
bfcd3a46 | 7395 | |
98fd2d65 PP |
7396 | /** |
7397 | * devlink_port_attrs_pci_pf_set - Set PCI PF port attributes | |
7398 | * | |
7399 | * @devlink_port: devlink port | |
7400 | * @pf: associated PF for the devlink port instance | |
7401 | * @switch_id: if the port is part of switch, this is buffer with ID, | |
7402 | * otherwise this is NULL | |
7403 | * @switch_id_len: length of the switch_id buffer | |
7404 | */ | |
7405 | void devlink_port_attrs_pci_pf_set(struct devlink_port *devlink_port, | |
7406 | const unsigned char *switch_id, | |
7407 | unsigned char switch_id_len, u16 pf) | |
7408 | { | |
7409 | struct devlink_port_attrs *attrs = &devlink_port->attrs; | |
7410 | int ret; | |
7411 | ||
7412 | ret = __devlink_port_attrs_set(devlink_port, | |
7413 | DEVLINK_PORT_FLAVOUR_PCI_PF, | |
7414 | switch_id, switch_id_len); | |
7415 | if (ret) | |
7416 | return; | |
7417 | ||
7418 | attrs->pci_pf.pf = pf; | |
7419 | } | |
7420 | EXPORT_SYMBOL_GPL(devlink_port_attrs_pci_pf_set); | |
7421 | ||
e41b6bf3 PP |
7422 | /** |
7423 | * devlink_port_attrs_pci_vf_set - Set PCI VF port attributes | |
7424 | * | |
7425 | * @devlink_port: devlink port | |
7426 | * @pf: associated PF for the devlink port instance | |
7427 | * @vf: associated VF of a PF for the devlink port instance | |
7428 | * @switch_id: if the port is part of switch, this is buffer with ID, | |
7429 | * otherwise this is NULL | |
7430 | * @switch_id_len: length of the switch_id buffer | |
7431 | */ | |
7432 | void devlink_port_attrs_pci_vf_set(struct devlink_port *devlink_port, | |
7433 | const unsigned char *switch_id, | |
7434 | unsigned char switch_id_len, | |
7435 | u16 pf, u16 vf) | |
7436 | { | |
7437 | struct devlink_port_attrs *attrs = &devlink_port->attrs; | |
7438 | int ret; | |
7439 | ||
7440 | ret = __devlink_port_attrs_set(devlink_port, | |
7441 | DEVLINK_PORT_FLAVOUR_PCI_VF, | |
7442 | switch_id, switch_id_len); | |
7443 | if (ret) | |
7444 | return; | |
7445 | attrs->pci_vf.pf = pf; | |
7446 | attrs->pci_vf.vf = vf; | |
7447 | } | |
7448 | EXPORT_SYMBOL_GPL(devlink_port_attrs_pci_vf_set); | |
7449 | ||
af3836df JP |
7450 | static int __devlink_port_phys_port_name_get(struct devlink_port *devlink_port, |
7451 | char *name, size_t len) | |
08474c1a JP |
7452 | { |
7453 | struct devlink_port_attrs *attrs = &devlink_port->attrs; | |
7454 | int n = 0; | |
7455 | ||
7456 | if (!attrs->set) | |
7457 | return -EOPNOTSUPP; | |
7458 | ||
7459 | switch (attrs->flavour) { | |
7460 | case DEVLINK_PORT_FLAVOUR_PHYSICAL: | |
acf1ee44 | 7461 | case DEVLINK_PORT_FLAVOUR_VIRTUAL: |
08474c1a | 7462 | if (!attrs->split) |
378ef01b | 7463 | n = snprintf(name, len, "p%u", attrs->phys.port_number); |
08474c1a | 7464 | else |
378ef01b PP |
7465 | n = snprintf(name, len, "p%us%u", |
7466 | attrs->phys.port_number, | |
7467 | attrs->phys.split_subport_number); | |
08474c1a JP |
7468 | break; |
7469 | case DEVLINK_PORT_FLAVOUR_CPU: | |
7470 | case DEVLINK_PORT_FLAVOUR_DSA: | |
7471 | /* As CPU and DSA ports do not have a netdevice associated | |
7472 | * case should not ever happen. | |
7473 | */ | |
7474 | WARN_ON(1); | |
7475 | return -EINVAL; | |
98fd2d65 PP |
7476 | case DEVLINK_PORT_FLAVOUR_PCI_PF: |
7477 | n = snprintf(name, len, "pf%u", attrs->pci_pf.pf); | |
7478 | break; | |
e41b6bf3 PP |
7479 | case DEVLINK_PORT_FLAVOUR_PCI_VF: |
7480 | n = snprintf(name, len, "pf%uvf%u", | |
7481 | attrs->pci_vf.pf, attrs->pci_vf.vf); | |
7482 | break; | |
08474c1a JP |
7483 | } |
7484 | ||
7485 | if (n >= len) | |
7486 | return -EINVAL; | |
7487 | ||
7488 | return 0; | |
7489 | } | |
af3836df | 7490 | |
bf797471 JP |
7491 | int devlink_sb_register(struct devlink *devlink, unsigned int sb_index, |
7492 | u32 size, u16 ingress_pools_count, | |
7493 | u16 egress_pools_count, u16 ingress_tc_count, | |
7494 | u16 egress_tc_count) | |
7495 | { | |
7496 | struct devlink_sb *devlink_sb; | |
7497 | int err = 0; | |
7498 | ||
2406e7e5 | 7499 | mutex_lock(&devlink->lock); |
bf797471 JP |
7500 | if (devlink_sb_index_exists(devlink, sb_index)) { |
7501 | err = -EEXIST; | |
7502 | goto unlock; | |
7503 | } | |
7504 | ||
7505 | devlink_sb = kzalloc(sizeof(*devlink_sb), GFP_KERNEL); | |
7506 | if (!devlink_sb) { | |
7507 | err = -ENOMEM; | |
7508 | goto unlock; | |
7509 | } | |
7510 | devlink_sb->index = sb_index; | |
7511 | devlink_sb->size = size; | |
7512 | devlink_sb->ingress_pools_count = ingress_pools_count; | |
7513 | devlink_sb->egress_pools_count = egress_pools_count; | |
7514 | devlink_sb->ingress_tc_count = ingress_tc_count; | |
7515 | devlink_sb->egress_tc_count = egress_tc_count; | |
7516 | list_add_tail(&devlink_sb->list, &devlink->sb_list); | |
7517 | unlock: | |
2406e7e5 | 7518 | mutex_unlock(&devlink->lock); |
bf797471 JP |
7519 | return err; |
7520 | } | |
7521 | EXPORT_SYMBOL_GPL(devlink_sb_register); | |
7522 | ||
7523 | void devlink_sb_unregister(struct devlink *devlink, unsigned int sb_index) | |
7524 | { | |
7525 | struct devlink_sb *devlink_sb; | |
7526 | ||
2406e7e5 | 7527 | mutex_lock(&devlink->lock); |
bf797471 JP |
7528 | devlink_sb = devlink_sb_get_by_index(devlink, sb_index); |
7529 | WARN_ON(!devlink_sb); | |
7530 | list_del(&devlink_sb->list); | |
2406e7e5 | 7531 | mutex_unlock(&devlink->lock); |
bf797471 JP |
7532 | kfree(devlink_sb); |
7533 | } | |
7534 | EXPORT_SYMBOL_GPL(devlink_sb_unregister); | |
7535 | ||
1555d204 AS |
7536 | /** |
7537 | * devlink_dpipe_headers_register - register dpipe headers | |
7538 | * | |
7539 | * @devlink: devlink | |
7540 | * @dpipe_headers: dpipe header array | |
7541 | * | |
7542 | * Register the headers supported by hardware. | |
7543 | */ | |
7544 | int devlink_dpipe_headers_register(struct devlink *devlink, | |
7545 | struct devlink_dpipe_headers *dpipe_headers) | |
7546 | { | |
2406e7e5 | 7547 | mutex_lock(&devlink->lock); |
1555d204 | 7548 | devlink->dpipe_headers = dpipe_headers; |
2406e7e5 | 7549 | mutex_unlock(&devlink->lock); |
1555d204 AS |
7550 | return 0; |
7551 | } | |
7552 | EXPORT_SYMBOL_GPL(devlink_dpipe_headers_register); | |
7553 | ||
7554 | /** | |
7555 | * devlink_dpipe_headers_unregister - unregister dpipe headers | |
7556 | * | |
7557 | * @devlink: devlink | |
7558 | * | |
7559 | * Unregister the headers supported by hardware. | |
7560 | */ | |
7561 | void devlink_dpipe_headers_unregister(struct devlink *devlink) | |
7562 | { | |
2406e7e5 | 7563 | mutex_lock(&devlink->lock); |
1555d204 | 7564 | devlink->dpipe_headers = NULL; |
2406e7e5 | 7565 | mutex_unlock(&devlink->lock); |
1555d204 AS |
7566 | } |
7567 | EXPORT_SYMBOL_GPL(devlink_dpipe_headers_unregister); | |
7568 | ||
7569 | /** | |
7570 | * devlink_dpipe_table_counter_enabled - check if counter allocation | |
7571 | * required | |
7572 | * @devlink: devlink | |
7573 | * @table_name: tables name | |
7574 | * | |
7575 | * Used by driver to check if counter allocation is required. | |
7576 | * After counter allocation is turned on the table entries | |
7577 | * are updated to include counter statistics. | |
7578 | * | |
7579 | * After that point on the driver must respect the counter | |
7580 | * state so that each entry added to the table is added | |
7581 | * with a counter. | |
7582 | */ | |
7583 | bool devlink_dpipe_table_counter_enabled(struct devlink *devlink, | |
7584 | const char *table_name) | |
7585 | { | |
7586 | struct devlink_dpipe_table *table; | |
7587 | bool enabled; | |
7588 | ||
7589 | rcu_read_lock(); | |
7590 | table = devlink_dpipe_table_find(&devlink->dpipe_table_list, | |
2eb51c75 | 7591 | table_name, devlink); |
1555d204 AS |
7592 | enabled = false; |
7593 | if (table) | |
7594 | enabled = table->counters_enabled; | |
7595 | rcu_read_unlock(); | |
7596 | return enabled; | |
7597 | } | |
7598 | EXPORT_SYMBOL_GPL(devlink_dpipe_table_counter_enabled); | |
7599 | ||
7600 | /** | |
7601 | * devlink_dpipe_table_register - register dpipe table | |
7602 | * | |
7603 | * @devlink: devlink | |
7604 | * @table_name: table name | |
7605 | * @table_ops: table ops | |
7606 | * @priv: priv | |
1555d204 AS |
7607 | * @counter_control_extern: external control for counters |
7608 | */ | |
7609 | int devlink_dpipe_table_register(struct devlink *devlink, | |
7610 | const char *table_name, | |
7611 | struct devlink_dpipe_table_ops *table_ops, | |
ffd3cdcc | 7612 | void *priv, bool counter_control_extern) |
1555d204 AS |
7613 | { |
7614 | struct devlink_dpipe_table *table; | |
6132c1d9 | 7615 | int err = 0; |
1555d204 | 7616 | |
ffd3cdcc AS |
7617 | if (WARN_ON(!table_ops->size_get)) |
7618 | return -EINVAL; | |
7619 | ||
6132c1d9 MB |
7620 | mutex_lock(&devlink->lock); |
7621 | ||
2eb51c75 MB |
7622 | if (devlink_dpipe_table_find(&devlink->dpipe_table_list, table_name, |
7623 | devlink)) { | |
6132c1d9 MB |
7624 | err = -EEXIST; |
7625 | goto unlock; | |
7626 | } | |
7627 | ||
1555d204 | 7628 | table = kzalloc(sizeof(*table), GFP_KERNEL); |
6132c1d9 MB |
7629 | if (!table) { |
7630 | err = -ENOMEM; | |
7631 | goto unlock; | |
7632 | } | |
1555d204 AS |
7633 | |
7634 | table->name = table_name; | |
7635 | table->table_ops = table_ops; | |
7636 | table->priv = priv; | |
1555d204 AS |
7637 | table->counter_control_extern = counter_control_extern; |
7638 | ||
1555d204 | 7639 | list_add_tail_rcu(&table->list, &devlink->dpipe_table_list); |
6132c1d9 | 7640 | unlock: |
2406e7e5 | 7641 | mutex_unlock(&devlink->lock); |
6132c1d9 | 7642 | return err; |
1555d204 AS |
7643 | } |
7644 | EXPORT_SYMBOL_GPL(devlink_dpipe_table_register); | |
7645 | ||
7646 | /** | |
7647 | * devlink_dpipe_table_unregister - unregister dpipe table | |
7648 | * | |
7649 | * @devlink: devlink | |
7650 | * @table_name: table name | |
7651 | */ | |
7652 | void devlink_dpipe_table_unregister(struct devlink *devlink, | |
7653 | const char *table_name) | |
7654 | { | |
7655 | struct devlink_dpipe_table *table; | |
7656 | ||
2406e7e5 | 7657 | mutex_lock(&devlink->lock); |
1555d204 | 7658 | table = devlink_dpipe_table_find(&devlink->dpipe_table_list, |
2eb51c75 | 7659 | table_name, devlink); |
1555d204 AS |
7660 | if (!table) |
7661 | goto unlock; | |
7662 | list_del_rcu(&table->list); | |
2406e7e5 | 7663 | mutex_unlock(&devlink->lock); |
1555d204 AS |
7664 | kfree_rcu(table, rcu); |
7665 | return; | |
7666 | unlock: | |
2406e7e5 | 7667 | mutex_unlock(&devlink->lock); |
1555d204 AS |
7668 | } |
7669 | EXPORT_SYMBOL_GPL(devlink_dpipe_table_unregister); | |
7670 | ||
d9f9b9a4 AS |
7671 | /** |
7672 | * devlink_resource_register - devlink resource register | |
7673 | * | |
7674 | * @devlink: devlink | |
7675 | * @resource_name: resource's name | |
d9f9b9a4 AS |
7676 | * @resource_size: resource's size |
7677 | * @resource_id: resource's id | |
eeaadd82 JK |
7678 | * @parent_resource_id: resource's parent id |
7679 | * @size_params: size parameters | |
d9f9b9a4 AS |
7680 | */ |
7681 | int devlink_resource_register(struct devlink *devlink, | |
7682 | const char *resource_name, | |
d9f9b9a4 AS |
7683 | u64 resource_size, |
7684 | u64 resource_id, | |
7685 | u64 parent_resource_id, | |
fc56be47 | 7686 | const struct devlink_resource_size_params *size_params) |
d9f9b9a4 AS |
7687 | { |
7688 | struct devlink_resource *resource; | |
7689 | struct list_head *resource_list; | |
14530746 | 7690 | bool top_hierarchy; |
d9f9b9a4 AS |
7691 | int err = 0; |
7692 | ||
14530746 DA |
7693 | top_hierarchy = parent_resource_id == DEVLINK_RESOURCE_ID_PARENT_TOP; |
7694 | ||
d9f9b9a4 AS |
7695 | mutex_lock(&devlink->lock); |
7696 | resource = devlink_resource_find(devlink, NULL, resource_id); | |
7697 | if (resource) { | |
7698 | err = -EINVAL; | |
7699 | goto out; | |
7700 | } | |
7701 | ||
7702 | resource = kzalloc(sizeof(*resource), GFP_KERNEL); | |
7703 | if (!resource) { | |
7704 | err = -ENOMEM; | |
7705 | goto out; | |
7706 | } | |
7707 | ||
7708 | if (top_hierarchy) { | |
7709 | resource_list = &devlink->resource_list; | |
7710 | } else { | |
7711 | struct devlink_resource *parent_resource; | |
7712 | ||
7713 | parent_resource = devlink_resource_find(devlink, NULL, | |
7714 | parent_resource_id); | |
7715 | if (parent_resource) { | |
7716 | resource_list = &parent_resource->resource_list; | |
7717 | resource->parent = parent_resource; | |
7718 | } else { | |
b75703de | 7719 | kfree(resource); |
d9f9b9a4 AS |
7720 | err = -EINVAL; |
7721 | goto out; | |
7722 | } | |
7723 | } | |
7724 | ||
7725 | resource->name = resource_name; | |
7726 | resource->size = resource_size; | |
7727 | resource->size_new = resource_size; | |
7728 | resource->id = resource_id; | |
d9f9b9a4 | 7729 | resource->size_valid = true; |
77d27096 JP |
7730 | memcpy(&resource->size_params, size_params, |
7731 | sizeof(resource->size_params)); | |
d9f9b9a4 AS |
7732 | INIT_LIST_HEAD(&resource->resource_list); |
7733 | list_add_tail(&resource->list, resource_list); | |
7734 | out: | |
7735 | mutex_unlock(&devlink->lock); | |
7736 | return err; | |
7737 | } | |
7738 | EXPORT_SYMBOL_GPL(devlink_resource_register); | |
7739 | ||
7740 | /** | |
7741 | * devlink_resources_unregister - free all resources | |
7742 | * | |
7743 | * @devlink: devlink | |
7744 | * @resource: resource | |
7745 | */ | |
7746 | void devlink_resources_unregister(struct devlink *devlink, | |
7747 | struct devlink_resource *resource) | |
7748 | { | |
7749 | struct devlink_resource *tmp, *child_resource; | |
7750 | struct list_head *resource_list; | |
7751 | ||
7752 | if (resource) | |
7753 | resource_list = &resource->resource_list; | |
7754 | else | |
7755 | resource_list = &devlink->resource_list; | |
7756 | ||
7757 | if (!resource) | |
7758 | mutex_lock(&devlink->lock); | |
7759 | ||
7760 | list_for_each_entry_safe(child_resource, tmp, resource_list, list) { | |
7761 | devlink_resources_unregister(devlink, child_resource); | |
7762 | list_del(&child_resource->list); | |
7763 | kfree(child_resource); | |
7764 | } | |
7765 | ||
7766 | if (!resource) | |
7767 | mutex_unlock(&devlink->lock); | |
7768 | } | |
7769 | EXPORT_SYMBOL_GPL(devlink_resources_unregister); | |
7770 | ||
7771 | /** | |
7772 | * devlink_resource_size_get - get and update size | |
7773 | * | |
7774 | * @devlink: devlink | |
7775 | * @resource_id: the requested resource id | |
7776 | * @p_resource_size: ptr to update | |
7777 | */ | |
7778 | int devlink_resource_size_get(struct devlink *devlink, | |
7779 | u64 resource_id, | |
7780 | u64 *p_resource_size) | |
7781 | { | |
7782 | struct devlink_resource *resource; | |
7783 | int err = 0; | |
7784 | ||
7785 | mutex_lock(&devlink->lock); | |
7786 | resource = devlink_resource_find(devlink, NULL, resource_id); | |
7787 | if (!resource) { | |
7788 | err = -EINVAL; | |
7789 | goto out; | |
7790 | } | |
7791 | *p_resource_size = resource->size_new; | |
7792 | resource->size = resource->size_new; | |
7793 | out: | |
7794 | mutex_unlock(&devlink->lock); | |
7795 | return err; | |
7796 | } | |
7797 | EXPORT_SYMBOL_GPL(devlink_resource_size_get); | |
7798 | ||
56dc7cd0 AS |
7799 | /** |
7800 | * devlink_dpipe_table_resource_set - set the resource id | |
7801 | * | |
7802 | * @devlink: devlink | |
7803 | * @table_name: table name | |
7804 | * @resource_id: resource id | |
7805 | * @resource_units: number of resource's units consumed per table's entry | |
7806 | */ | |
7807 | int devlink_dpipe_table_resource_set(struct devlink *devlink, | |
7808 | const char *table_name, u64 resource_id, | |
7809 | u64 resource_units) | |
7810 | { | |
7811 | struct devlink_dpipe_table *table; | |
7812 | int err = 0; | |
7813 | ||
7814 | mutex_lock(&devlink->lock); | |
7815 | table = devlink_dpipe_table_find(&devlink->dpipe_table_list, | |
2eb51c75 | 7816 | table_name, devlink); |
56dc7cd0 AS |
7817 | if (!table) { |
7818 | err = -EINVAL; | |
7819 | goto out; | |
7820 | } | |
7821 | table->resource_id = resource_id; | |
7822 | table->resource_units = resource_units; | |
7823 | table->resource_valid = true; | |
7824 | out: | |
7825 | mutex_unlock(&devlink->lock); | |
7826 | return err; | |
7827 | } | |
7828 | EXPORT_SYMBOL_GPL(devlink_dpipe_table_resource_set); | |
7829 | ||
fc56be47 JP |
7830 | /** |
7831 | * devlink_resource_occ_get_register - register occupancy getter | |
7832 | * | |
7833 | * @devlink: devlink | |
7834 | * @resource_id: resource id | |
7835 | * @occ_get: occupancy getter callback | |
7836 | * @occ_get_priv: occupancy getter callback priv | |
7837 | */ | |
7838 | void devlink_resource_occ_get_register(struct devlink *devlink, | |
7839 | u64 resource_id, | |
7840 | devlink_resource_occ_get_t *occ_get, | |
7841 | void *occ_get_priv) | |
7842 | { | |
7843 | struct devlink_resource *resource; | |
7844 | ||
7845 | mutex_lock(&devlink->lock); | |
7846 | resource = devlink_resource_find(devlink, NULL, resource_id); | |
7847 | if (WARN_ON(!resource)) | |
7848 | goto out; | |
7849 | WARN_ON(resource->occ_get); | |
7850 | ||
7851 | resource->occ_get = occ_get; | |
7852 | resource->occ_get_priv = occ_get_priv; | |
7853 | out: | |
7854 | mutex_unlock(&devlink->lock); | |
7855 | } | |
7856 | EXPORT_SYMBOL_GPL(devlink_resource_occ_get_register); | |
7857 | ||
7858 | /** | |
7859 | * devlink_resource_occ_get_unregister - unregister occupancy getter | |
7860 | * | |
7861 | * @devlink: devlink | |
7862 | * @resource_id: resource id | |
7863 | */ | |
7864 | void devlink_resource_occ_get_unregister(struct devlink *devlink, | |
7865 | u64 resource_id) | |
7866 | { | |
7867 | struct devlink_resource *resource; | |
7868 | ||
7869 | mutex_lock(&devlink->lock); | |
7870 | resource = devlink_resource_find(devlink, NULL, resource_id); | |
7871 | if (WARN_ON(!resource)) | |
7872 | goto out; | |
7873 | WARN_ON(!resource->occ_get); | |
7874 | ||
7875 | resource->occ_get = NULL; | |
7876 | resource->occ_get_priv = NULL; | |
7877 | out: | |
7878 | mutex_unlock(&devlink->lock); | |
7879 | } | |
7880 | EXPORT_SYMBOL_GPL(devlink_resource_occ_get_unregister); | |
7881 | ||
39e6160e VV |
7882 | static int devlink_param_verify(const struct devlink_param *param) |
7883 | { | |
7884 | if (!param || !param->name || !param->supported_cmodes) | |
7885 | return -EINVAL; | |
7886 | if (param->generic) | |
7887 | return devlink_param_generic_verify(param); | |
7888 | else | |
7889 | return devlink_param_driver_verify(param); | |
7890 | } | |
7891 | ||
7892 | static int __devlink_params_register(struct devlink *devlink, | |
c1e5786d | 7893 | unsigned int port_index, |
39e6160e VV |
7894 | struct list_head *param_list, |
7895 | const struct devlink_param *params, | |
c1e5786d VV |
7896 | size_t params_count, |
7897 | enum devlink_command reg_cmd, | |
7898 | enum devlink_command unreg_cmd) | |
eabaef18 MS |
7899 | { |
7900 | const struct devlink_param *param = params; | |
7901 | int i; | |
7902 | int err; | |
7903 | ||
7904 | mutex_lock(&devlink->lock); | |
7905 | for (i = 0; i < params_count; i++, param++) { | |
39e6160e VV |
7906 | err = devlink_param_verify(param); |
7907 | if (err) | |
eabaef18 | 7908 | goto rollback; |
39e6160e | 7909 | |
c1e5786d VV |
7910 | err = devlink_param_register_one(devlink, port_index, |
7911 | param_list, param, reg_cmd); | |
eabaef18 MS |
7912 | if (err) |
7913 | goto rollback; | |
7914 | } | |
7915 | ||
7916 | mutex_unlock(&devlink->lock); | |
7917 | return 0; | |
7918 | ||
7919 | rollback: | |
7920 | if (!i) | |
7921 | goto unlock; | |
7922 | for (param--; i > 0; i--, param--) | |
c1e5786d VV |
7923 | devlink_param_unregister_one(devlink, port_index, param_list, |
7924 | param, unreg_cmd); | |
eabaef18 MS |
7925 | unlock: |
7926 | mutex_unlock(&devlink->lock); | |
7927 | return err; | |
7928 | } | |
39e6160e VV |
7929 | |
7930 | static void __devlink_params_unregister(struct devlink *devlink, | |
c1e5786d | 7931 | unsigned int port_index, |
39e6160e VV |
7932 | struct list_head *param_list, |
7933 | const struct devlink_param *params, | |
c1e5786d VV |
7934 | size_t params_count, |
7935 | enum devlink_command cmd) | |
39e6160e VV |
7936 | { |
7937 | const struct devlink_param *param = params; | |
7938 | int i; | |
7939 | ||
7940 | mutex_lock(&devlink->lock); | |
7941 | for (i = 0; i < params_count; i++, param++) | |
c1e5786d VV |
7942 | devlink_param_unregister_one(devlink, 0, param_list, param, |
7943 | cmd); | |
39e6160e VV |
7944 | mutex_unlock(&devlink->lock); |
7945 | } | |
7946 | ||
7947 | /** | |
7948 | * devlink_params_register - register configuration parameters | |
7949 | * | |
7950 | * @devlink: devlink | |
7951 | * @params: configuration parameters array | |
7952 | * @params_count: number of parameters provided | |
7953 | * | |
7954 | * Register the configuration parameters supported by the driver. | |
7955 | */ | |
7956 | int devlink_params_register(struct devlink *devlink, | |
7957 | const struct devlink_param *params, | |
7958 | size_t params_count) | |
7959 | { | |
c1e5786d VV |
7960 | return __devlink_params_register(devlink, 0, &devlink->param_list, |
7961 | params, params_count, | |
7962 | DEVLINK_CMD_PARAM_NEW, | |
7963 | DEVLINK_CMD_PARAM_DEL); | |
39e6160e | 7964 | } |
eabaef18 MS |
7965 | EXPORT_SYMBOL_GPL(devlink_params_register); |
7966 | ||
7967 | /** | |
7968 | * devlink_params_unregister - unregister configuration parameters | |
7969 | * @devlink: devlink | |
7970 | * @params: configuration parameters to unregister | |
7971 | * @params_count: number of parameters provided | |
7972 | */ | |
7973 | void devlink_params_unregister(struct devlink *devlink, | |
7974 | const struct devlink_param *params, | |
7975 | size_t params_count) | |
7976 | { | |
c1e5786d VV |
7977 | return __devlink_params_unregister(devlink, 0, &devlink->param_list, |
7978 | params, params_count, | |
7979 | DEVLINK_CMD_PARAM_DEL); | |
eabaef18 MS |
7980 | } |
7981 | EXPORT_SYMBOL_GPL(devlink_params_unregister); | |
7982 | ||
7c62cfb8 JP |
7983 | /** |
7984 | * devlink_params_publish - publish configuration parameters | |
7985 | * | |
7986 | * @devlink: devlink | |
7987 | * | |
7988 | * Publish previously registered configuration parameters. | |
7989 | */ | |
7990 | void devlink_params_publish(struct devlink *devlink) | |
7991 | { | |
7992 | struct devlink_param_item *param_item; | |
7993 | ||
7994 | list_for_each_entry(param_item, &devlink->param_list, list) { | |
7995 | if (param_item->published) | |
7996 | continue; | |
7997 | param_item->published = true; | |
7998 | devlink_param_notify(devlink, 0, param_item, | |
7999 | DEVLINK_CMD_PARAM_NEW); | |
8000 | } | |
8001 | } | |
8002 | EXPORT_SYMBOL_GPL(devlink_params_publish); | |
8003 | ||
8004 | /** | |
8005 | * devlink_params_unpublish - unpublish configuration parameters | |
8006 | * | |
8007 | * @devlink: devlink | |
8008 | * | |
8009 | * Unpublish previously registered configuration parameters. | |
8010 | */ | |
8011 | void devlink_params_unpublish(struct devlink *devlink) | |
8012 | { | |
8013 | struct devlink_param_item *param_item; | |
8014 | ||
8015 | list_for_each_entry(param_item, &devlink->param_list, list) { | |
8016 | if (!param_item->published) | |
8017 | continue; | |
8018 | param_item->published = false; | |
8019 | devlink_param_notify(devlink, 0, param_item, | |
8020 | DEVLINK_CMD_PARAM_DEL); | |
8021 | } | |
8022 | } | |
8023 | EXPORT_SYMBOL_GPL(devlink_params_unpublish); | |
8024 | ||
39e6160e VV |
8025 | /** |
8026 | * devlink_port_params_register - register port configuration parameters | |
8027 | * | |
8028 | * @devlink_port: devlink port | |
8029 | * @params: configuration parameters array | |
8030 | * @params_count: number of parameters provided | |
8031 | * | |
8032 | * Register the configuration parameters supported by the port. | |
8033 | */ | |
8034 | int devlink_port_params_register(struct devlink_port *devlink_port, | |
8035 | const struct devlink_param *params, | |
8036 | size_t params_count) | |
8037 | { | |
8038 | return __devlink_params_register(devlink_port->devlink, | |
c1e5786d | 8039 | devlink_port->index, |
39e6160e | 8040 | &devlink_port->param_list, params, |
c1e5786d VV |
8041 | params_count, |
8042 | DEVLINK_CMD_PORT_PARAM_NEW, | |
8043 | DEVLINK_CMD_PORT_PARAM_DEL); | |
39e6160e VV |
8044 | } |
8045 | EXPORT_SYMBOL_GPL(devlink_port_params_register); | |
8046 | ||
8047 | /** | |
8048 | * devlink_port_params_unregister - unregister port configuration | |
8049 | * parameters | |
8050 | * | |
8051 | * @devlink_port: devlink port | |
8052 | * @params: configuration parameters array | |
8053 | * @params_count: number of parameters provided | |
8054 | */ | |
8055 | void devlink_port_params_unregister(struct devlink_port *devlink_port, | |
8056 | const struct devlink_param *params, | |
8057 | size_t params_count) | |
8058 | { | |
8059 | return __devlink_params_unregister(devlink_port->devlink, | |
c1e5786d | 8060 | devlink_port->index, |
39e6160e | 8061 | &devlink_port->param_list, |
c1e5786d VV |
8062 | params, params_count, |
8063 | DEVLINK_CMD_PORT_PARAM_DEL); | |
39e6160e VV |
8064 | } |
8065 | EXPORT_SYMBOL_GPL(devlink_port_params_unregister); | |
8066 | ||
ffd19b9a VV |
8067 | static int |
8068 | __devlink_param_driverinit_value_get(struct list_head *param_list, u32 param_id, | |
8069 | union devlink_param_value *init_val) | |
ec01aeb1 MS |
8070 | { |
8071 | struct devlink_param_item *param_item; | |
8072 | ||
ffd19b9a | 8073 | param_item = devlink_param_find_by_id(param_list, param_id); |
ec01aeb1 MS |
8074 | if (!param_item) |
8075 | return -EINVAL; | |
8076 | ||
8077 | if (!param_item->driverinit_value_valid || | |
8078 | !devlink_param_cmode_is_supported(param_item->param, | |
8079 | DEVLINK_PARAM_CMODE_DRIVERINIT)) | |
8080 | return -EOPNOTSUPP; | |
8081 | ||
1276534c MS |
8082 | if (param_item->param->type == DEVLINK_PARAM_TYPE_STRING) |
8083 | strcpy(init_val->vstr, param_item->driverinit_value.vstr); | |
8084 | else | |
8085 | *init_val = param_item->driverinit_value; | |
ec01aeb1 MS |
8086 | |
8087 | return 0; | |
8088 | } | |
ffd19b9a | 8089 | |
5473a7bd VV |
8090 | static int |
8091 | __devlink_param_driverinit_value_set(struct devlink *devlink, | |
c1e5786d | 8092 | unsigned int port_index, |
5473a7bd VV |
8093 | struct list_head *param_list, u32 param_id, |
8094 | union devlink_param_value init_val, | |
8095 | enum devlink_command cmd) | |
8096 | { | |
8097 | struct devlink_param_item *param_item; | |
8098 | ||
8099 | param_item = devlink_param_find_by_id(param_list, param_id); | |
8100 | if (!param_item) | |
8101 | return -EINVAL; | |
8102 | ||
8103 | if (!devlink_param_cmode_is_supported(param_item->param, | |
8104 | DEVLINK_PARAM_CMODE_DRIVERINIT)) | |
8105 | return -EOPNOTSUPP; | |
8106 | ||
8107 | if (param_item->param->type == DEVLINK_PARAM_TYPE_STRING) | |
8108 | strcpy(param_item->driverinit_value.vstr, init_val.vstr); | |
8109 | else | |
8110 | param_item->driverinit_value = init_val; | |
8111 | param_item->driverinit_value_valid = true; | |
8112 | ||
c1e5786d | 8113 | devlink_param_notify(devlink, port_index, param_item, cmd); |
5473a7bd VV |
8114 | return 0; |
8115 | } | |
8116 | ||
ffd19b9a VV |
8117 | /** |
8118 | * devlink_param_driverinit_value_get - get configuration parameter | |
8119 | * value for driver initializing | |
8120 | * | |
8121 | * @devlink: devlink | |
8122 | * @param_id: parameter ID | |
8123 | * @init_val: value of parameter in driverinit configuration mode | |
8124 | * | |
8125 | * This function should be used by the driver to get driverinit | |
8126 | * configuration for initialization after reload command. | |
8127 | */ | |
8128 | int devlink_param_driverinit_value_get(struct devlink *devlink, u32 param_id, | |
8129 | union devlink_param_value *init_val) | |
8130 | { | |
97691069 | 8131 | if (!devlink_reload_supported(devlink)) |
ffd19b9a VV |
8132 | return -EOPNOTSUPP; |
8133 | ||
8134 | return __devlink_param_driverinit_value_get(&devlink->param_list, | |
8135 | param_id, init_val); | |
8136 | } | |
ec01aeb1 MS |
8137 | EXPORT_SYMBOL_GPL(devlink_param_driverinit_value_get); |
8138 | ||
8139 | /** | |
8140 | * devlink_param_driverinit_value_set - set value of configuration | |
8141 | * parameter for driverinit | |
8142 | * configuration mode | |
8143 | * | |
8144 | * @devlink: devlink | |
8145 | * @param_id: parameter ID | |
8146 | * @init_val: value of parameter to set for driverinit configuration mode | |
8147 | * | |
8148 | * This function should be used by the driver to set driverinit | |
8149 | * configuration mode default value. | |
8150 | */ | |
8151 | int devlink_param_driverinit_value_set(struct devlink *devlink, u32 param_id, | |
8152 | union devlink_param_value init_val) | |
8153 | { | |
c1e5786d | 8154 | return __devlink_param_driverinit_value_set(devlink, 0, |
5473a7bd VV |
8155 | &devlink->param_list, |
8156 | param_id, init_val, | |
8157 | DEVLINK_CMD_PARAM_NEW); | |
ec01aeb1 MS |
8158 | } |
8159 | EXPORT_SYMBOL_GPL(devlink_param_driverinit_value_set); | |
8160 | ||
ffd19b9a VV |
8161 | /** |
8162 | * devlink_port_param_driverinit_value_get - get configuration parameter | |
8163 | * value for driver initializing | |
8164 | * | |
8165 | * @devlink_port: devlink_port | |
8166 | * @param_id: parameter ID | |
8167 | * @init_val: value of parameter in driverinit configuration mode | |
8168 | * | |
8169 | * This function should be used by the driver to get driverinit | |
8170 | * configuration for initialization after reload command. | |
8171 | */ | |
8172 | int devlink_port_param_driverinit_value_get(struct devlink_port *devlink_port, | |
8173 | u32 param_id, | |
8174 | union devlink_param_value *init_val) | |
8175 | { | |
8176 | struct devlink *devlink = devlink_port->devlink; | |
8177 | ||
97691069 | 8178 | if (!devlink_reload_supported(devlink)) |
ffd19b9a VV |
8179 | return -EOPNOTSUPP; |
8180 | ||
8181 | return __devlink_param_driverinit_value_get(&devlink_port->param_list, | |
8182 | param_id, init_val); | |
8183 | } | |
8184 | EXPORT_SYMBOL_GPL(devlink_port_param_driverinit_value_get); | |
8185 | ||
5473a7bd VV |
8186 | /** |
8187 | * devlink_port_param_driverinit_value_set - set value of configuration | |
8188 | * parameter for driverinit | |
8189 | * configuration mode | |
8190 | * | |
8191 | * @devlink_port: devlink_port | |
8192 | * @param_id: parameter ID | |
8193 | * @init_val: value of parameter to set for driverinit configuration mode | |
8194 | * | |
8195 | * This function should be used by the driver to set driverinit | |
8196 | * configuration mode default value. | |
8197 | */ | |
8198 | int devlink_port_param_driverinit_value_set(struct devlink_port *devlink_port, | |
8199 | u32 param_id, | |
8200 | union devlink_param_value init_val) | |
8201 | { | |
8202 | return __devlink_param_driverinit_value_set(devlink_port->devlink, | |
c1e5786d | 8203 | devlink_port->index, |
5473a7bd | 8204 | &devlink_port->param_list, |
c1e5786d VV |
8205 | param_id, init_val, |
8206 | DEVLINK_CMD_PORT_PARAM_NEW); | |
5473a7bd VV |
8207 | } |
8208 | EXPORT_SYMBOL_GPL(devlink_port_param_driverinit_value_set); | |
8209 | ||
ea601e17 MS |
8210 | /** |
8211 | * devlink_param_value_changed - notify devlink on a parameter's value | |
8212 | * change. Should be called by the driver | |
8213 | * right after the change. | |
8214 | * | |
8215 | * @devlink: devlink | |
8216 | * @param_id: parameter ID | |
8217 | * | |
8218 | * This function should be used by the driver to notify devlink on value | |
8219 | * change, excluding driverinit configuration mode. | |
8220 | * For driverinit configuration mode driver should use the function | |
ea601e17 MS |
8221 | */ |
8222 | void devlink_param_value_changed(struct devlink *devlink, u32 param_id) | |
8223 | { | |
8224 | struct devlink_param_item *param_item; | |
8225 | ||
8226 | param_item = devlink_param_find_by_id(&devlink->param_list, param_id); | |
8227 | WARN_ON(!param_item); | |
8228 | ||
c1e5786d | 8229 | devlink_param_notify(devlink, 0, param_item, DEVLINK_CMD_PARAM_NEW); |
ea601e17 MS |
8230 | } |
8231 | EXPORT_SYMBOL_GPL(devlink_param_value_changed); | |
8232 | ||
c1e5786d VV |
8233 | /** |
8234 | * devlink_port_param_value_changed - notify devlink on a parameter's value | |
8235 | * change. Should be called by the driver | |
8236 | * right after the change. | |
8237 | * | |
8238 | * @devlink_port: devlink_port | |
8239 | * @param_id: parameter ID | |
8240 | * | |
8241 | * This function should be used by the driver to notify devlink on value | |
8242 | * change, excluding driverinit configuration mode. | |
8243 | * For driverinit configuration mode driver should use the function | |
8244 | * devlink_port_param_driverinit_value_set() instead. | |
8245 | */ | |
8246 | void devlink_port_param_value_changed(struct devlink_port *devlink_port, | |
8247 | u32 param_id) | |
8248 | { | |
8249 | struct devlink_param_item *param_item; | |
8250 | ||
8251 | param_item = devlink_param_find_by_id(&devlink_port->param_list, | |
8252 | param_id); | |
8253 | WARN_ON(!param_item); | |
8254 | ||
8255 | devlink_param_notify(devlink_port->devlink, devlink_port->index, | |
8256 | param_item, DEVLINK_CMD_PORT_PARAM_NEW); | |
8257 | } | |
8258 | EXPORT_SYMBOL_GPL(devlink_port_param_value_changed); | |
8259 | ||
bde74ad1 MS |
8260 | /** |
8261 | * devlink_param_value_str_fill - Safely fill-up the string preventing | |
8262 | * from overflow of the preallocated buffer | |
8263 | * | |
8264 | * @dst_val: destination devlink_param_value | |
8265 | * @src: source buffer | |
8266 | */ | |
8267 | void devlink_param_value_str_fill(union devlink_param_value *dst_val, | |
8268 | const char *src) | |
8269 | { | |
8270 | size_t len; | |
8271 | ||
8272 | len = strlcpy(dst_val->vstr, src, __DEVLINK_PARAM_MAX_STRING_VALUE); | |
8273 | WARN_ON(len >= __DEVLINK_PARAM_MAX_STRING_VALUE); | |
8274 | } | |
8275 | EXPORT_SYMBOL_GPL(devlink_param_value_str_fill); | |
8276 | ||
b16ebe92 AV |
8277 | /** |
8278 | * devlink_region_create - create a new address region | |
8279 | * | |
8280 | * @devlink: devlink | |
e8937681 | 8281 | * @ops: region operations and name |
b16ebe92 AV |
8282 | * @region_max_snapshots: Maximum supported number of snapshots for region |
8283 | * @region_size: size of region | |
8284 | */ | |
e8937681 JK |
8285 | struct devlink_region * |
8286 | devlink_region_create(struct devlink *devlink, | |
8287 | const struct devlink_region_ops *ops, | |
8288 | u32 region_max_snapshots, u64 region_size) | |
b16ebe92 AV |
8289 | { |
8290 | struct devlink_region *region; | |
8291 | int err = 0; | |
8292 | ||
a0a09f6b JK |
8293 | if (WARN_ON(!ops) || WARN_ON(!ops->destructor)) |
8294 | return ERR_PTR(-EINVAL); | |
8295 | ||
b16ebe92 AV |
8296 | mutex_lock(&devlink->lock); |
8297 | ||
e8937681 | 8298 | if (devlink_region_get_by_name(devlink, ops->name)) { |
b16ebe92 AV |
8299 | err = -EEXIST; |
8300 | goto unlock; | |
8301 | } | |
8302 | ||
8303 | region = kzalloc(sizeof(*region), GFP_KERNEL); | |
8304 | if (!region) { | |
8305 | err = -ENOMEM; | |
8306 | goto unlock; | |
8307 | } | |
8308 | ||
8309 | region->devlink = devlink; | |
8310 | region->max_snapshots = region_max_snapshots; | |
e8937681 | 8311 | region->ops = ops; |
b16ebe92 AV |
8312 | region->size = region_size; |
8313 | INIT_LIST_HEAD(®ion->snapshot_list); | |
8314 | list_add_tail(®ion->list, &devlink->region_list); | |
866319bb | 8315 | devlink_nl_region_notify(region, NULL, DEVLINK_CMD_REGION_NEW); |
b16ebe92 AV |
8316 | |
8317 | mutex_unlock(&devlink->lock); | |
8318 | return region; | |
8319 | ||
8320 | unlock: | |
8321 | mutex_unlock(&devlink->lock); | |
8322 | return ERR_PTR(err); | |
8323 | } | |
8324 | EXPORT_SYMBOL_GPL(devlink_region_create); | |
8325 | ||
8326 | /** | |
8327 | * devlink_region_destroy - destroy address region | |
8328 | * | |
8329 | * @region: devlink region to destroy | |
8330 | */ | |
8331 | void devlink_region_destroy(struct devlink_region *region) | |
8332 | { | |
8333 | struct devlink *devlink = region->devlink; | |
d7e52722 | 8334 | struct devlink_snapshot *snapshot, *ts; |
b16ebe92 AV |
8335 | |
8336 | mutex_lock(&devlink->lock); | |
d7e52722 AV |
8337 | |
8338 | /* Free all snapshots of region */ | |
8339 | list_for_each_entry_safe(snapshot, ts, ®ion->snapshot_list, list) | |
92b49822 | 8340 | devlink_region_snapshot_del(region, snapshot); |
d7e52722 | 8341 | |
b16ebe92 | 8342 | list_del(®ion->list); |
866319bb AV |
8343 | |
8344 | devlink_nl_region_notify(region, NULL, DEVLINK_CMD_REGION_DEL); | |
b16ebe92 AV |
8345 | mutex_unlock(&devlink->lock); |
8346 | kfree(region); | |
8347 | } | |
8348 | EXPORT_SYMBOL_GPL(devlink_region_destroy); | |
8349 | ||
ccadfa44 | 8350 | /** |
b0efcae5 | 8351 | * devlink_region_snapshot_id_get - get snapshot ID |
ccadfa44 AV |
8352 | * |
8353 | * This callback should be called when adding a new snapshot, | |
8354 | * Driver should use the same id for multiple snapshots taken | |
8355 | * on multiple regions at the same time/by the same trigger. | |
8356 | * | |
12102436 JK |
8357 | * The caller of this function must use devlink_region_snapshot_id_put |
8358 | * when finished creating regions using this id. | |
8359 | * | |
7ef19d3b JK |
8360 | * Returns zero on success, or a negative error code on failure. |
8361 | * | |
ccadfa44 | 8362 | * @devlink: devlink |
7ef19d3b | 8363 | * @id: storage to return id |
ccadfa44 | 8364 | */ |
7ef19d3b | 8365 | int devlink_region_snapshot_id_get(struct devlink *devlink, u32 *id) |
ccadfa44 | 8366 | { |
7ef19d3b | 8367 | int err; |
ccadfa44 AV |
8368 | |
8369 | mutex_lock(&devlink->lock); | |
7ef19d3b | 8370 | err = __devlink_region_snapshot_id_get(devlink, id); |
ccadfa44 AV |
8371 | mutex_unlock(&devlink->lock); |
8372 | ||
7ef19d3b | 8373 | return err; |
ccadfa44 | 8374 | } |
b0efcae5 | 8375 | EXPORT_SYMBOL_GPL(devlink_region_snapshot_id_get); |
ccadfa44 | 8376 | |
12102436 JK |
8377 | /** |
8378 | * devlink_region_snapshot_id_put - put snapshot ID reference | |
8379 | * | |
8380 | * This should be called by a driver after finishing creating snapshots | |
8381 | * with an id. Doing so ensures that the ID can later be released in the | |
8382 | * event that all snapshots using it have been destroyed. | |
8383 | * | |
8384 | * @devlink: devlink | |
8385 | * @id: id to release reference on | |
8386 | */ | |
8387 | void devlink_region_snapshot_id_put(struct devlink *devlink, u32 id) | |
8388 | { | |
8389 | mutex_lock(&devlink->lock); | |
8390 | __devlink_snapshot_id_decrement(devlink, id); | |
8391 | mutex_unlock(&devlink->lock); | |
8392 | } | |
8393 | EXPORT_SYMBOL_GPL(devlink_region_snapshot_id_put); | |
8394 | ||
d7e52722 AV |
8395 | /** |
8396 | * devlink_region_snapshot_create - create a new snapshot | |
8397 | * This will add a new snapshot of a region. The snapshot | |
8398 | * will be stored on the region struct and can be accessed | |
6d82f67e | 8399 | * from devlink. This is useful for future analyses of snapshots. |
d7e52722 AV |
8400 | * Multiple snapshots can be created on a region. |
8401 | * The @snapshot_id should be obtained using the getter function. | |
8402 | * | |
eeaadd82 | 8403 | * @region: devlink region of the snapshot |
d7e52722 AV |
8404 | * @data: snapshot data |
8405 | * @snapshot_id: snapshot id to be created | |
d7e52722 | 8406 | */ |
3a5e5234 | 8407 | int devlink_region_snapshot_create(struct devlink_region *region, |
a0a09f6b | 8408 | u8 *data, u32 snapshot_id) |
d7e52722 AV |
8409 | { |
8410 | struct devlink *devlink = region->devlink; | |
d7e52722 AV |
8411 | int err; |
8412 | ||
8413 | mutex_lock(&devlink->lock); | |
cf80faee | 8414 | err = __devlink_region_snapshot_create(region, data, snapshot_id); |
d7e52722 | 8415 | mutex_unlock(&devlink->lock); |
d7e52722 | 8416 | |
d7e52722 AV |
8417 | return err; |
8418 | } | |
8419 | EXPORT_SYMBOL_GPL(devlink_region_snapshot_create); | |
8420 | ||
0f420b6c IS |
8421 | #define DEVLINK_TRAP(_id, _type) \ |
8422 | { \ | |
8423 | .type = DEVLINK_TRAP_TYPE_##_type, \ | |
8424 | .id = DEVLINK_TRAP_GENERIC_ID_##_id, \ | |
8425 | .name = DEVLINK_TRAP_GENERIC_NAME_##_id, \ | |
8426 | } | |
8427 | ||
8428 | static const struct devlink_trap devlink_trap_generic[] = { | |
391203ab IS |
8429 | DEVLINK_TRAP(SMAC_MC, DROP), |
8430 | DEVLINK_TRAP(VLAN_TAG_MISMATCH, DROP), | |
8431 | DEVLINK_TRAP(INGRESS_VLAN_FILTER, DROP), | |
8432 | DEVLINK_TRAP(INGRESS_STP_FILTER, DROP), | |
8433 | DEVLINK_TRAP(EMPTY_TX_LIST, DROP), | |
8434 | DEVLINK_TRAP(PORT_LOOPBACK_FILTER, DROP), | |
8435 | DEVLINK_TRAP(BLACKHOLE_ROUTE, DROP), | |
8436 | DEVLINK_TRAP(TTL_ERROR, EXCEPTION), | |
8437 | DEVLINK_TRAP(TAIL_DROP, DROP), | |
6896cc4d AC |
8438 | DEVLINK_TRAP(NON_IP_PACKET, DROP), |
8439 | DEVLINK_TRAP(UC_DIP_MC_DMAC, DROP), | |
8440 | DEVLINK_TRAP(DIP_LB, DROP), | |
8441 | DEVLINK_TRAP(SIP_MC, DROP), | |
8442 | DEVLINK_TRAP(SIP_LB, DROP), | |
8443 | DEVLINK_TRAP(CORRUPTED_IP_HDR, DROP), | |
8444 | DEVLINK_TRAP(IPV4_SIP_BC, DROP), | |
8445 | DEVLINK_TRAP(IPV6_MC_DIP_RESERVED_SCOPE, DROP), | |
8446 | DEVLINK_TRAP(IPV6_MC_DIP_INTERFACE_LOCAL_SCOPE, DROP), | |
3b063ae5 AC |
8447 | DEVLINK_TRAP(MTU_ERROR, EXCEPTION), |
8448 | DEVLINK_TRAP(UNRESOLVED_NEIGH, EXCEPTION), | |
8449 | DEVLINK_TRAP(RPF, EXCEPTION), | |
8450 | DEVLINK_TRAP(REJECT_ROUTE, EXCEPTION), | |
8451 | DEVLINK_TRAP(IPV4_LPM_UNICAST_MISS, EXCEPTION), | |
8452 | DEVLINK_TRAP(IPV6_LPM_UNICAST_MISS, EXCEPTION), | |
95f0ead8 | 8453 | DEVLINK_TRAP(NON_ROUTABLE, DROP), |
13c056ec | 8454 | DEVLINK_TRAP(DECAP_ERROR, EXCEPTION), |
c3cae491 | 8455 | DEVLINK_TRAP(OVERLAY_SMAC_MC, DROP), |
ecd942a0 JP |
8456 | DEVLINK_TRAP(INGRESS_FLOW_ACTION_DROP, DROP), |
8457 | DEVLINK_TRAP(EGRESS_FLOW_ACTION_DROP, DROP), | |
0f420b6c IS |
8458 | }; |
8459 | ||
8460 | #define DEVLINK_TRAP_GROUP(_id) \ | |
8461 | { \ | |
8462 | .id = DEVLINK_TRAP_GROUP_GENERIC_ID_##_id, \ | |
8463 | .name = DEVLINK_TRAP_GROUP_GENERIC_NAME_##_id, \ | |
8464 | } | |
8465 | ||
8466 | static const struct devlink_trap_group devlink_trap_group_generic[] = { | |
391203ab IS |
8467 | DEVLINK_TRAP_GROUP(L2_DROPS), |
8468 | DEVLINK_TRAP_GROUP(L3_DROPS), | |
8469 | DEVLINK_TRAP_GROUP(BUFFER_DROPS), | |
13c056ec | 8470 | DEVLINK_TRAP_GROUP(TUNNEL_DROPS), |
ecd942a0 | 8471 | DEVLINK_TRAP_GROUP(ACL_DROPS), |
0f420b6c IS |
8472 | }; |
8473 | ||
8474 | static int devlink_trap_generic_verify(const struct devlink_trap *trap) | |
8475 | { | |
8476 | if (trap->id > DEVLINK_TRAP_GENERIC_ID_MAX) | |
8477 | return -EINVAL; | |
8478 | ||
8479 | if (strcmp(trap->name, devlink_trap_generic[trap->id].name)) | |
8480 | return -EINVAL; | |
8481 | ||
8482 | if (trap->type != devlink_trap_generic[trap->id].type) | |
8483 | return -EINVAL; | |
8484 | ||
8485 | return 0; | |
8486 | } | |
8487 | ||
8488 | static int devlink_trap_driver_verify(const struct devlink_trap *trap) | |
8489 | { | |
8490 | int i; | |
8491 | ||
8492 | if (trap->id <= DEVLINK_TRAP_GENERIC_ID_MAX) | |
8493 | return -EINVAL; | |
8494 | ||
8495 | for (i = 0; i < ARRAY_SIZE(devlink_trap_generic); i++) { | |
8496 | if (!strcmp(trap->name, devlink_trap_generic[i].name)) | |
8497 | return -EEXIST; | |
8498 | } | |
8499 | ||
8500 | return 0; | |
8501 | } | |
8502 | ||
8503 | static int devlink_trap_verify(const struct devlink_trap *trap) | |
8504 | { | |
107f1678 | 8505 | if (!trap || !trap->name) |
0f420b6c IS |
8506 | return -EINVAL; |
8507 | ||
8508 | if (trap->generic) | |
8509 | return devlink_trap_generic_verify(trap); | |
8510 | else | |
8511 | return devlink_trap_driver_verify(trap); | |
8512 | } | |
8513 | ||
8514 | static int | |
8515 | devlink_trap_group_generic_verify(const struct devlink_trap_group *group) | |
8516 | { | |
8517 | if (group->id > DEVLINK_TRAP_GROUP_GENERIC_ID_MAX) | |
8518 | return -EINVAL; | |
8519 | ||
8520 | if (strcmp(group->name, devlink_trap_group_generic[group->id].name)) | |
8521 | return -EINVAL; | |
8522 | ||
8523 | return 0; | |
8524 | } | |
8525 | ||
8526 | static int | |
8527 | devlink_trap_group_driver_verify(const struct devlink_trap_group *group) | |
8528 | { | |
8529 | int i; | |
8530 | ||
8531 | if (group->id <= DEVLINK_TRAP_GROUP_GENERIC_ID_MAX) | |
8532 | return -EINVAL; | |
8533 | ||
8534 | for (i = 0; i < ARRAY_SIZE(devlink_trap_group_generic); i++) { | |
8535 | if (!strcmp(group->name, devlink_trap_group_generic[i].name)) | |
8536 | return -EEXIST; | |
8537 | } | |
8538 | ||
8539 | return 0; | |
8540 | } | |
8541 | ||
8542 | static int devlink_trap_group_verify(const struct devlink_trap_group *group) | |
8543 | { | |
8544 | if (group->generic) | |
8545 | return devlink_trap_group_generic_verify(group); | |
8546 | else | |
8547 | return devlink_trap_group_driver_verify(group); | |
8548 | } | |
8549 | ||
8550 | static void | |
8551 | devlink_trap_group_notify(struct devlink *devlink, | |
8552 | const struct devlink_trap_group_item *group_item, | |
8553 | enum devlink_command cmd) | |
8554 | { | |
8555 | struct sk_buff *msg; | |
8556 | int err; | |
8557 | ||
8558 | WARN_ON_ONCE(cmd != DEVLINK_CMD_TRAP_GROUP_NEW && | |
8559 | cmd != DEVLINK_CMD_TRAP_GROUP_DEL); | |
8560 | ||
8561 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
8562 | if (!msg) | |
8563 | return; | |
8564 | ||
8565 | err = devlink_nl_trap_group_fill(msg, devlink, group_item, cmd, 0, 0, | |
8566 | 0); | |
8567 | if (err) { | |
8568 | nlmsg_free(msg); | |
8569 | return; | |
8570 | } | |
8571 | ||
8572 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), | |
8573 | msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
8574 | } | |
8575 | ||
0f420b6c IS |
8576 | static int |
8577 | devlink_trap_item_group_link(struct devlink *devlink, | |
8578 | struct devlink_trap_item *trap_item) | |
8579 | { | |
107f1678 | 8580 | u16 group_id = trap_item->trap->init_group_id; |
0f420b6c IS |
8581 | struct devlink_trap_group_item *group_item; |
8582 | ||
107f1678 | 8583 | group_item = devlink_trap_group_item_lookup_by_id(devlink, group_id); |
a09b37fc IS |
8584 | if (WARN_ON_ONCE(!group_item)) |
8585 | return -EINVAL; | |
0f420b6c IS |
8586 | |
8587 | trap_item->group_item = group_item; | |
8588 | ||
8589 | return 0; | |
8590 | } | |
8591 | ||
0f420b6c IS |
8592 | static void devlink_trap_notify(struct devlink *devlink, |
8593 | const struct devlink_trap_item *trap_item, | |
8594 | enum devlink_command cmd) | |
8595 | { | |
8596 | struct sk_buff *msg; | |
8597 | int err; | |
8598 | ||
8599 | WARN_ON_ONCE(cmd != DEVLINK_CMD_TRAP_NEW && | |
8600 | cmd != DEVLINK_CMD_TRAP_DEL); | |
8601 | ||
8602 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
8603 | if (!msg) | |
8604 | return; | |
8605 | ||
8606 | err = devlink_nl_trap_fill(msg, devlink, trap_item, cmd, 0, 0, 0); | |
8607 | if (err) { | |
8608 | nlmsg_free(msg); | |
8609 | return; | |
8610 | } | |
8611 | ||
8612 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), | |
8613 | msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
8614 | } | |
8615 | ||
8616 | static int | |
8617 | devlink_trap_register(struct devlink *devlink, | |
8618 | const struct devlink_trap *trap, void *priv) | |
8619 | { | |
8620 | struct devlink_trap_item *trap_item; | |
8621 | int err; | |
8622 | ||
8623 | if (devlink_trap_item_lookup(devlink, trap->name)) | |
8624 | return -EEXIST; | |
8625 | ||
8626 | trap_item = kzalloc(sizeof(*trap_item), GFP_KERNEL); | |
8627 | if (!trap_item) | |
8628 | return -ENOMEM; | |
8629 | ||
8630 | trap_item->stats = netdev_alloc_pcpu_stats(struct devlink_stats); | |
8631 | if (!trap_item->stats) { | |
8632 | err = -ENOMEM; | |
8633 | goto err_stats_alloc; | |
8634 | } | |
8635 | ||
8636 | trap_item->trap = trap; | |
8637 | trap_item->action = trap->init_action; | |
8638 | trap_item->priv = priv; | |
8639 | ||
8640 | err = devlink_trap_item_group_link(devlink, trap_item); | |
8641 | if (err) | |
8642 | goto err_group_link; | |
8643 | ||
8644 | err = devlink->ops->trap_init(devlink, trap, trap_item); | |
8645 | if (err) | |
8646 | goto err_trap_init; | |
8647 | ||
8648 | list_add_tail(&trap_item->list, &devlink->trap_list); | |
8649 | devlink_trap_notify(devlink, trap_item, DEVLINK_CMD_TRAP_NEW); | |
8650 | ||
8651 | return 0; | |
8652 | ||
8653 | err_trap_init: | |
0f420b6c IS |
8654 | err_group_link: |
8655 | free_percpu(trap_item->stats); | |
8656 | err_stats_alloc: | |
8657 | kfree(trap_item); | |
8658 | return err; | |
8659 | } | |
8660 | ||
8661 | static void devlink_trap_unregister(struct devlink *devlink, | |
8662 | const struct devlink_trap *trap) | |
8663 | { | |
8664 | struct devlink_trap_item *trap_item; | |
8665 | ||
8666 | trap_item = devlink_trap_item_lookup(devlink, trap->name); | |
8667 | if (WARN_ON_ONCE(!trap_item)) | |
8668 | return; | |
8669 | ||
8670 | devlink_trap_notify(devlink, trap_item, DEVLINK_CMD_TRAP_DEL); | |
8671 | list_del(&trap_item->list); | |
8672 | if (devlink->ops->trap_fini) | |
8673 | devlink->ops->trap_fini(devlink, trap, trap_item); | |
0f420b6c IS |
8674 | free_percpu(trap_item->stats); |
8675 | kfree(trap_item); | |
8676 | } | |
8677 | ||
8678 | static void devlink_trap_disable(struct devlink *devlink, | |
8679 | const struct devlink_trap *trap) | |
8680 | { | |
8681 | struct devlink_trap_item *trap_item; | |
8682 | ||
8683 | trap_item = devlink_trap_item_lookup(devlink, trap->name); | |
8684 | if (WARN_ON_ONCE(!trap_item)) | |
8685 | return; | |
8686 | ||
8687 | devlink->ops->trap_action_set(devlink, trap, DEVLINK_TRAP_ACTION_DROP); | |
8688 | trap_item->action = DEVLINK_TRAP_ACTION_DROP; | |
8689 | } | |
8690 | ||
8691 | /** | |
8692 | * devlink_traps_register - Register packet traps with devlink. | |
8693 | * @devlink: devlink. | |
8694 | * @traps: Packet traps. | |
8695 | * @traps_count: Count of provided packet traps. | |
8696 | * @priv: Driver private information. | |
8697 | * | |
8698 | * Return: Non-zero value on failure. | |
8699 | */ | |
8700 | int devlink_traps_register(struct devlink *devlink, | |
8701 | const struct devlink_trap *traps, | |
8702 | size_t traps_count, void *priv) | |
8703 | { | |
8704 | int i, err; | |
8705 | ||
8706 | if (!devlink->ops->trap_init || !devlink->ops->trap_action_set) | |
8707 | return -EINVAL; | |
8708 | ||
8709 | mutex_lock(&devlink->lock); | |
8710 | for (i = 0; i < traps_count; i++) { | |
8711 | const struct devlink_trap *trap = &traps[i]; | |
8712 | ||
8713 | err = devlink_trap_verify(trap); | |
8714 | if (err) | |
8715 | goto err_trap_verify; | |
8716 | ||
8717 | err = devlink_trap_register(devlink, trap, priv); | |
8718 | if (err) | |
8719 | goto err_trap_register; | |
8720 | } | |
8721 | mutex_unlock(&devlink->lock); | |
8722 | ||
8723 | return 0; | |
8724 | ||
8725 | err_trap_register: | |
8726 | err_trap_verify: | |
8727 | for (i--; i >= 0; i--) | |
8728 | devlink_trap_unregister(devlink, &traps[i]); | |
8729 | mutex_unlock(&devlink->lock); | |
8730 | return err; | |
8731 | } | |
8732 | EXPORT_SYMBOL_GPL(devlink_traps_register); | |
8733 | ||
8734 | /** | |
8735 | * devlink_traps_unregister - Unregister packet traps from devlink. | |
8736 | * @devlink: devlink. | |
8737 | * @traps: Packet traps. | |
8738 | * @traps_count: Count of provided packet traps. | |
8739 | */ | |
8740 | void devlink_traps_unregister(struct devlink *devlink, | |
8741 | const struct devlink_trap *traps, | |
8742 | size_t traps_count) | |
8743 | { | |
8744 | int i; | |
8745 | ||
8746 | mutex_lock(&devlink->lock); | |
8747 | /* Make sure we do not have any packets in-flight while unregistering | |
8748 | * traps by disabling all of them and waiting for a grace period. | |
8749 | */ | |
8750 | for (i = traps_count - 1; i >= 0; i--) | |
8751 | devlink_trap_disable(devlink, &traps[i]); | |
8752 | synchronize_rcu(); | |
8753 | for (i = traps_count - 1; i >= 0; i--) | |
8754 | devlink_trap_unregister(devlink, &traps[i]); | |
8755 | mutex_unlock(&devlink->lock); | |
8756 | } | |
8757 | EXPORT_SYMBOL_GPL(devlink_traps_unregister); | |
8758 | ||
8759 | static void | |
8760 | devlink_trap_stats_update(struct devlink_stats __percpu *trap_stats, | |
8761 | size_t skb_len) | |
8762 | { | |
8763 | struct devlink_stats *stats; | |
8764 | ||
8765 | stats = this_cpu_ptr(trap_stats); | |
8766 | u64_stats_update_begin(&stats->syncp); | |
8767 | stats->rx_bytes += skb_len; | |
8768 | stats->rx_packets++; | |
8769 | u64_stats_update_end(&stats->syncp); | |
8770 | } | |
8771 | ||
8772 | static void | |
8773 | devlink_trap_report_metadata_fill(struct net_dm_hw_metadata *hw_metadata, | |
8774 | const struct devlink_trap_item *trap_item, | |
5a2e106c JP |
8775 | struct devlink_port *in_devlink_port, |
8776 | const struct flow_action_cookie *fa_cookie) | |
0f420b6c IS |
8777 | { |
8778 | struct devlink_trap_group_item *group_item = trap_item->group_item; | |
8779 | ||
8780 | hw_metadata->trap_group_name = group_item->group->name; | |
8781 | hw_metadata->trap_name = trap_item->trap->name; | |
5a2e106c | 8782 | hw_metadata->fa_cookie = fa_cookie; |
0f420b6c IS |
8783 | |
8784 | spin_lock(&in_devlink_port->type_lock); | |
8785 | if (in_devlink_port->type == DEVLINK_PORT_TYPE_ETH) | |
8786 | hw_metadata->input_dev = in_devlink_port->type_dev; | |
8787 | spin_unlock(&in_devlink_port->type_lock); | |
8788 | } | |
8789 | ||
8790 | /** | |
8791 | * devlink_trap_report - Report trapped packet to drop monitor. | |
8792 | * @devlink: devlink. | |
8793 | * @skb: Trapped packet. | |
8794 | * @trap_ctx: Trap context. | |
8795 | * @in_devlink_port: Input devlink port. | |
5a2e106c | 8796 | * @fa_cookie: Flow action cookie. Could be NULL. |
0f420b6c IS |
8797 | */ |
8798 | void devlink_trap_report(struct devlink *devlink, struct sk_buff *skb, | |
5a2e106c JP |
8799 | void *trap_ctx, struct devlink_port *in_devlink_port, |
8800 | const struct flow_action_cookie *fa_cookie) | |
8801 | ||
0f420b6c IS |
8802 | { |
8803 | struct devlink_trap_item *trap_item = trap_ctx; | |
8804 | struct net_dm_hw_metadata hw_metadata = {}; | |
8805 | ||
8806 | devlink_trap_stats_update(trap_item->stats, skb->len); | |
8807 | devlink_trap_stats_update(trap_item->group_item->stats, skb->len); | |
8808 | ||
8809 | devlink_trap_report_metadata_fill(&hw_metadata, trap_item, | |
5a2e106c | 8810 | in_devlink_port, fa_cookie); |
0f420b6c IS |
8811 | net_dm_hw_report(skb, &hw_metadata); |
8812 | } | |
8813 | EXPORT_SYMBOL_GPL(devlink_trap_report); | |
8814 | ||
8815 | /** | |
8816 | * devlink_trap_ctx_priv - Trap context to driver private information. | |
8817 | * @trap_ctx: Trap context. | |
8818 | * | |
8819 | * Return: Driver private information passed during registration. | |
8820 | */ | |
8821 | void *devlink_trap_ctx_priv(void *trap_ctx) | |
8822 | { | |
8823 | struct devlink_trap_item *trap_item = trap_ctx; | |
8824 | ||
8825 | return trap_item->priv; | |
8826 | } | |
8827 | EXPORT_SYMBOL_GPL(devlink_trap_ctx_priv); | |
8828 | ||
f9f54392 IS |
8829 | static int |
8830 | devlink_trap_group_item_policer_link(struct devlink *devlink, | |
8831 | struct devlink_trap_group_item *group_item) | |
8832 | { | |
8833 | u32 policer_id = group_item->group->init_policer_id; | |
8834 | struct devlink_trap_policer_item *policer_item; | |
8835 | ||
8836 | if (policer_id == 0) | |
8837 | return 0; | |
8838 | ||
8839 | policer_item = devlink_trap_policer_item_lookup(devlink, policer_id); | |
8840 | if (WARN_ON_ONCE(!policer_item)) | |
8841 | return -EINVAL; | |
8842 | ||
8843 | group_item->policer_item = policer_item; | |
8844 | ||
8845 | return 0; | |
8846 | } | |
8847 | ||
95ad9555 IS |
8848 | static int |
8849 | devlink_trap_group_register(struct devlink *devlink, | |
8850 | const struct devlink_trap_group *group) | |
8851 | { | |
8852 | struct devlink_trap_group_item *group_item; | |
8853 | int err; | |
8854 | ||
8855 | if (devlink_trap_group_item_lookup(devlink, group->name)) | |
8856 | return -EEXIST; | |
8857 | ||
8858 | group_item = kzalloc(sizeof(*group_item), GFP_KERNEL); | |
8859 | if (!group_item) | |
8860 | return -ENOMEM; | |
8861 | ||
8862 | group_item->stats = netdev_alloc_pcpu_stats(struct devlink_stats); | |
8863 | if (!group_item->stats) { | |
8864 | err = -ENOMEM; | |
8865 | goto err_stats_alloc; | |
8866 | } | |
8867 | ||
8868 | group_item->group = group; | |
95ad9555 | 8869 | |
f9f54392 IS |
8870 | err = devlink_trap_group_item_policer_link(devlink, group_item); |
8871 | if (err) | |
8872 | goto err_policer_link; | |
8873 | ||
95ad9555 IS |
8874 | if (devlink->ops->trap_group_init) { |
8875 | err = devlink->ops->trap_group_init(devlink, group); | |
8876 | if (err) | |
8877 | goto err_group_init; | |
8878 | } | |
8879 | ||
8880 | list_add_tail(&group_item->list, &devlink->trap_group_list); | |
8881 | devlink_trap_group_notify(devlink, group_item, | |
8882 | DEVLINK_CMD_TRAP_GROUP_NEW); | |
8883 | ||
8884 | return 0; | |
8885 | ||
8886 | err_group_init: | |
f9f54392 | 8887 | err_policer_link: |
95ad9555 IS |
8888 | free_percpu(group_item->stats); |
8889 | err_stats_alloc: | |
8890 | kfree(group_item); | |
8891 | return err; | |
8892 | } | |
8893 | ||
8894 | static void | |
8895 | devlink_trap_group_unregister(struct devlink *devlink, | |
8896 | const struct devlink_trap_group *group) | |
8897 | { | |
8898 | struct devlink_trap_group_item *group_item; | |
8899 | ||
8900 | group_item = devlink_trap_group_item_lookup(devlink, group->name); | |
8901 | if (WARN_ON_ONCE(!group_item)) | |
8902 | return; | |
8903 | ||
8904 | devlink_trap_group_notify(devlink, group_item, | |
8905 | DEVLINK_CMD_TRAP_GROUP_DEL); | |
8906 | list_del(&group_item->list); | |
8907 | free_percpu(group_item->stats); | |
8908 | kfree(group_item); | |
8909 | } | |
8910 | ||
8911 | /** | |
8912 | * devlink_trap_groups_register - Register packet trap groups with devlink. | |
8913 | * @devlink: devlink. | |
8914 | * @groups: Packet trap groups. | |
8915 | * @groups_count: Count of provided packet trap groups. | |
8916 | * | |
8917 | * Return: Non-zero value on failure. | |
8918 | */ | |
8919 | int devlink_trap_groups_register(struct devlink *devlink, | |
8920 | const struct devlink_trap_group *groups, | |
8921 | size_t groups_count) | |
8922 | { | |
8923 | int i, err; | |
8924 | ||
8925 | mutex_lock(&devlink->lock); | |
8926 | for (i = 0; i < groups_count; i++) { | |
8927 | const struct devlink_trap_group *group = &groups[i]; | |
8928 | ||
8929 | err = devlink_trap_group_verify(group); | |
8930 | if (err) | |
8931 | goto err_trap_group_verify; | |
8932 | ||
8933 | err = devlink_trap_group_register(devlink, group); | |
8934 | if (err) | |
8935 | goto err_trap_group_register; | |
8936 | } | |
8937 | mutex_unlock(&devlink->lock); | |
8938 | ||
8939 | return 0; | |
8940 | ||
8941 | err_trap_group_register: | |
8942 | err_trap_group_verify: | |
8943 | for (i--; i >= 0; i--) | |
8944 | devlink_trap_group_unregister(devlink, &groups[i]); | |
8945 | mutex_unlock(&devlink->lock); | |
8946 | return err; | |
8947 | } | |
8948 | EXPORT_SYMBOL_GPL(devlink_trap_groups_register); | |
8949 | ||
8950 | /** | |
8951 | * devlink_trap_groups_unregister - Unregister packet trap groups from devlink. | |
8952 | * @devlink: devlink. | |
8953 | * @groups: Packet trap groups. | |
8954 | * @groups_count: Count of provided packet trap groups. | |
8955 | */ | |
8956 | void devlink_trap_groups_unregister(struct devlink *devlink, | |
8957 | const struct devlink_trap_group *groups, | |
8958 | size_t groups_count) | |
8959 | { | |
8960 | int i; | |
8961 | ||
8962 | mutex_lock(&devlink->lock); | |
8963 | for (i = groups_count - 1; i >= 0; i--) | |
8964 | devlink_trap_group_unregister(devlink, &groups[i]); | |
8965 | mutex_unlock(&devlink->lock); | |
8966 | } | |
8967 | EXPORT_SYMBOL_GPL(devlink_trap_groups_unregister); | |
8968 | ||
1e8c6619 IS |
8969 | static void |
8970 | devlink_trap_policer_notify(struct devlink *devlink, | |
8971 | const struct devlink_trap_policer_item *policer_item, | |
8972 | enum devlink_command cmd) | |
8973 | { | |
8974 | struct sk_buff *msg; | |
8975 | int err; | |
8976 | ||
8977 | WARN_ON_ONCE(cmd != DEVLINK_CMD_TRAP_POLICER_NEW && | |
8978 | cmd != DEVLINK_CMD_TRAP_POLICER_DEL); | |
8979 | ||
8980 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
8981 | if (!msg) | |
8982 | return; | |
8983 | ||
8984 | err = devlink_nl_trap_policer_fill(msg, devlink, policer_item, cmd, 0, | |
8985 | 0, 0); | |
8986 | if (err) { | |
8987 | nlmsg_free(msg); | |
8988 | return; | |
8989 | } | |
8990 | ||
8991 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), | |
8992 | msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
8993 | } | |
8994 | ||
8995 | static int | |
8996 | devlink_trap_policer_register(struct devlink *devlink, | |
8997 | const struct devlink_trap_policer *policer) | |
8998 | { | |
8999 | struct devlink_trap_policer_item *policer_item; | |
9000 | int err; | |
9001 | ||
9002 | if (devlink_trap_policer_item_lookup(devlink, policer->id)) | |
9003 | return -EEXIST; | |
9004 | ||
9005 | policer_item = kzalloc(sizeof(*policer_item), GFP_KERNEL); | |
9006 | if (!policer_item) | |
9007 | return -ENOMEM; | |
9008 | ||
9009 | policer_item->policer = policer; | |
9010 | policer_item->rate = policer->init_rate; | |
9011 | policer_item->burst = policer->init_burst; | |
9012 | ||
9013 | if (devlink->ops->trap_policer_init) { | |
9014 | err = devlink->ops->trap_policer_init(devlink, policer); | |
9015 | if (err) | |
9016 | goto err_policer_init; | |
9017 | } | |
9018 | ||
9019 | list_add_tail(&policer_item->list, &devlink->trap_policer_list); | |
9020 | devlink_trap_policer_notify(devlink, policer_item, | |
9021 | DEVLINK_CMD_TRAP_POLICER_NEW); | |
9022 | ||
9023 | return 0; | |
9024 | ||
9025 | err_policer_init: | |
9026 | kfree(policer_item); | |
9027 | return err; | |
9028 | } | |
9029 | ||
9030 | static void | |
9031 | devlink_trap_policer_unregister(struct devlink *devlink, | |
9032 | const struct devlink_trap_policer *policer) | |
9033 | { | |
9034 | struct devlink_trap_policer_item *policer_item; | |
9035 | ||
9036 | policer_item = devlink_trap_policer_item_lookup(devlink, policer->id); | |
9037 | if (WARN_ON_ONCE(!policer_item)) | |
9038 | return; | |
9039 | ||
9040 | devlink_trap_policer_notify(devlink, policer_item, | |
9041 | DEVLINK_CMD_TRAP_POLICER_DEL); | |
9042 | list_del(&policer_item->list); | |
9043 | if (devlink->ops->trap_policer_fini) | |
9044 | devlink->ops->trap_policer_fini(devlink, policer); | |
9045 | kfree(policer_item); | |
9046 | } | |
9047 | ||
9048 | /** | |
9049 | * devlink_trap_policers_register - Register packet trap policers with devlink. | |
9050 | * @devlink: devlink. | |
9051 | * @policers: Packet trap policers. | |
9052 | * @policers_count: Count of provided packet trap policers. | |
9053 | * | |
9054 | * Return: Non-zero value on failure. | |
9055 | */ | |
9056 | int | |
9057 | devlink_trap_policers_register(struct devlink *devlink, | |
9058 | const struct devlink_trap_policer *policers, | |
9059 | size_t policers_count) | |
9060 | { | |
9061 | int i, err; | |
9062 | ||
9063 | mutex_lock(&devlink->lock); | |
9064 | for (i = 0; i < policers_count; i++) { | |
9065 | const struct devlink_trap_policer *policer = &policers[i]; | |
9066 | ||
9067 | if (WARN_ON(policer->id == 0 || | |
9068 | policer->max_rate < policer->min_rate || | |
9069 | policer->max_burst < policer->min_burst)) { | |
9070 | err = -EINVAL; | |
9071 | goto err_trap_policer_verify; | |
9072 | } | |
9073 | ||
9074 | err = devlink_trap_policer_register(devlink, policer); | |
9075 | if (err) | |
9076 | goto err_trap_policer_register; | |
9077 | } | |
9078 | mutex_unlock(&devlink->lock); | |
9079 | ||
9080 | return 0; | |
9081 | ||
9082 | err_trap_policer_register: | |
9083 | err_trap_policer_verify: | |
9084 | for (i--; i >= 0; i--) | |
9085 | devlink_trap_policer_unregister(devlink, &policers[i]); | |
9086 | mutex_unlock(&devlink->lock); | |
9087 | return err; | |
9088 | } | |
9089 | EXPORT_SYMBOL_GPL(devlink_trap_policers_register); | |
9090 | ||
9091 | /** | |
9092 | * devlink_trap_policers_unregister - Unregister packet trap policers from devlink. | |
9093 | * @devlink: devlink. | |
9094 | * @policers: Packet trap policers. | |
9095 | * @policers_count: Count of provided packet trap policers. | |
9096 | */ | |
9097 | void | |
9098 | devlink_trap_policers_unregister(struct devlink *devlink, | |
9099 | const struct devlink_trap_policer *policers, | |
9100 | size_t policers_count) | |
9101 | { | |
9102 | int i; | |
9103 | ||
9104 | mutex_lock(&devlink->lock); | |
9105 | for (i = policers_count - 1; i >= 0; i--) | |
9106 | devlink_trap_policer_unregister(devlink, &policers[i]); | |
9107 | mutex_unlock(&devlink->lock); | |
9108 | } | |
9109 | EXPORT_SYMBOL_GPL(devlink_trap_policers_unregister); | |
9110 | ||
ddb6e99e JK |
9111 | static void __devlink_compat_running_version(struct devlink *devlink, |
9112 | char *buf, size_t len) | |
9113 | { | |
9114 | const struct nlattr *nlattr; | |
9115 | struct devlink_info_req req; | |
9116 | struct sk_buff *msg; | |
9117 | int rem, err; | |
9118 | ||
ddb6e99e JK |
9119 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
9120 | if (!msg) | |
9121 | return; | |
9122 | ||
9123 | req.msg = msg; | |
9124 | err = devlink->ops->info_get(devlink, &req, NULL); | |
9125 | if (err) | |
9126 | goto free_msg; | |
9127 | ||
9128 | nla_for_each_attr(nlattr, (void *)msg->data, msg->len, rem) { | |
9129 | const struct nlattr *kv; | |
9130 | int rem_kv; | |
9131 | ||
9132 | if (nla_type(nlattr) != DEVLINK_ATTR_INFO_VERSION_RUNNING) | |
9133 | continue; | |
9134 | ||
9135 | nla_for_each_nested(kv, nlattr, rem_kv) { | |
9136 | if (nla_type(kv) != DEVLINK_ATTR_INFO_VERSION_VALUE) | |
9137 | continue; | |
9138 | ||
9139 | strlcat(buf, nla_data(kv), len); | |
9140 | strlcat(buf, " ", len); | |
9141 | } | |
9142 | } | |
9143 | free_msg: | |
9144 | nlmsg_free(msg); | |
9145 | } | |
9146 | ||
9147 | void devlink_compat_running_version(struct net_device *dev, | |
9148 | char *buf, size_t len) | |
9149 | { | |
ddb6e99e JK |
9150 | struct devlink *devlink; |
9151 | ||
1b45ff6c JK |
9152 | dev_hold(dev); |
9153 | rtnl_unlock(); | |
9154 | ||
b473b0d2 | 9155 | devlink = netdev_to_devlink(dev); |
be6fe1d8 | 9156 | if (!devlink || !devlink->ops->info_get) |
e0dcd386 | 9157 | goto out; |
b473b0d2 JK |
9158 | |
9159 | mutex_lock(&devlink->lock); | |
9160 | __devlink_compat_running_version(devlink, buf, len); | |
9161 | mutex_unlock(&devlink->lock); | |
1b45ff6c | 9162 | |
e0dcd386 | 9163 | out: |
1b45ff6c JK |
9164 | rtnl_lock(); |
9165 | dev_put(dev); | |
ddb6e99e JK |
9166 | } |
9167 | ||
4eceba17 JK |
9168 | int devlink_compat_flash_update(struct net_device *dev, const char *file_name) |
9169 | { | |
4eceba17 | 9170 | struct devlink *devlink; |
e0dcd386 | 9171 | int ret; |
4eceba17 | 9172 | |
1b45ff6c JK |
9173 | dev_hold(dev); |
9174 | rtnl_unlock(); | |
9175 | ||
b473b0d2 | 9176 | devlink = netdev_to_devlink(dev); |
e0dcd386 JP |
9177 | if (!devlink || !devlink->ops->flash_update) { |
9178 | ret = -EOPNOTSUPP; | |
9179 | goto out; | |
9180 | } | |
4eceba17 | 9181 | |
b473b0d2 JK |
9182 | mutex_lock(&devlink->lock); |
9183 | ret = devlink->ops->flash_update(devlink, file_name, NULL, NULL); | |
9184 | mutex_unlock(&devlink->lock); | |
1b45ff6c | 9185 | |
e0dcd386 | 9186 | out: |
1b45ff6c JK |
9187 | rtnl_lock(); |
9188 | dev_put(dev); | |
9189 | ||
b473b0d2 | 9190 | return ret; |
4eceba17 JK |
9191 | } |
9192 | ||
af3836df JP |
9193 | int devlink_compat_phys_port_name_get(struct net_device *dev, |
9194 | char *name, size_t len) | |
9195 | { | |
9196 | struct devlink_port *devlink_port; | |
9197 | ||
9198 | /* RTNL mutex is held here which ensures that devlink_port | |
9199 | * instance cannot disappear in the middle. No need to take | |
9200 | * any devlink lock as only permanent values are accessed. | |
9201 | */ | |
9202 | ASSERT_RTNL(); | |
9203 | ||
9204 | devlink_port = netdev_to_devlink_port(dev); | |
9205 | if (!devlink_port) | |
9206 | return -EOPNOTSUPP; | |
9207 | ||
9208 | return __devlink_port_phys_port_name_get(devlink_port, name, len); | |
9209 | } | |
9210 | ||
7e1146e8 JP |
9211 | int devlink_compat_switch_id_get(struct net_device *dev, |
9212 | struct netdev_phys_item_id *ppid) | |
9213 | { | |
9214 | struct devlink_port *devlink_port; | |
9215 | ||
043b8413 VB |
9216 | /* Caller must hold RTNL mutex or reference to dev, which ensures that |
9217 | * devlink_port instance cannot disappear in the middle. No need to take | |
7e1146e8 JP |
9218 | * any devlink lock as only permanent values are accessed. |
9219 | */ | |
7e1146e8 JP |
9220 | devlink_port = netdev_to_devlink_port(dev); |
9221 | if (!devlink_port || !devlink_port->attrs.switch_port) | |
9222 | return -EOPNOTSUPP; | |
9223 | ||
9224 | memcpy(ppid, &devlink_port->attrs.switch_id, sizeof(*ppid)); | |
9225 | ||
9226 | return 0; | |
9227 | } | |
9228 | ||
070c63f2 JP |
9229 | static void __net_exit devlink_pernet_pre_exit(struct net *net) |
9230 | { | |
9231 | struct devlink *devlink; | |
9232 | int err; | |
9233 | ||
9234 | /* In case network namespace is getting destroyed, reload | |
9235 | * all devlink instances from this namespace into init_net. | |
9236 | */ | |
9237 | mutex_lock(&devlink_mutex); | |
9238 | list_for_each_entry(devlink, &devlink_list, list) { | |
9239 | if (net_eq(devlink_net(devlink), net)) { | |
9240 | if (WARN_ON(!devlink_reload_supported(devlink))) | |
9241 | continue; | |
9242 | err = devlink_reload(devlink, &init_net, NULL); | |
a0c76345 | 9243 | if (err && err != -EOPNOTSUPP) |
070c63f2 JP |
9244 | pr_warn("Failed to reload devlink instance into init_net\n"); |
9245 | } | |
9246 | } | |
9247 | mutex_unlock(&devlink_mutex); | |
9248 | } | |
9249 | ||
9250 | static struct pernet_operations devlink_pernet_ops __net_initdata = { | |
9251 | .pre_exit = devlink_pernet_pre_exit, | |
9252 | }; | |
9253 | ||
f4b6bcc7 | 9254 | static int __init devlink_init(void) |
bfcd3a46 | 9255 | { |
070c63f2 JP |
9256 | int err; |
9257 | ||
9258 | err = genl_register_family(&devlink_nl_family); | |
9259 | if (err) | |
9260 | goto out; | |
9261 | err = register_pernet_subsys(&devlink_pernet_ops); | |
9262 | ||
9263 | out: | |
9264 | WARN_ON(err); | |
9265 | return err; | |
bfcd3a46 JP |
9266 | } |
9267 | ||
f4b6bcc7 | 9268 | subsys_initcall(devlink_init); |