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