Commit | Line | Data |
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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 | ||
b6459415 | 10 | #include <linux/etherdevice.h> |
bfcd3a46 JP |
11 | #include <linux/kernel.h> |
12 | #include <linux/module.h> | |
13 | #include <linux/types.h> | |
14 | #include <linux/slab.h> | |
15 | #include <linux/gfp.h> | |
16 | #include <linux/device.h> | |
17 | #include <linux/list.h> | |
18 | #include <linux/netdevice.h> | |
b8f97554 | 19 | #include <linux/spinlock.h> |
b587bdaf | 20 | #include <linux/refcount.h> |
136bf27f | 21 | #include <linux/workqueue.h> |
0f420b6c IS |
22 | #include <linux/u64_stats_sync.h> |
23 | #include <linux/timekeeping.h> | |
bfcd3a46 JP |
24 | #include <rdma/ib_verbs.h> |
25 | #include <net/netlink.h> | |
26 | #include <net/genetlink.h> | |
27 | #include <net/rtnetlink.h> | |
28 | #include <net/net_namespace.h> | |
29 | #include <net/sock.h> | |
30 | #include <net/devlink.h> | |
e5224f0f JP |
31 | #define CREATE_TRACE_POINTS |
32 | #include <trace/events/devlink.h> | |
33 | ||
21314638 LR |
34 | #define DEVLINK_RELOAD_STATS_ARRAY_SIZE \ |
35 | (__DEVLINK_RELOAD_LIMIT_MAX * __DEVLINK_RELOAD_ACTION_MAX) | |
36 | ||
37 | struct devlink_dev_stats { | |
38 | u32 reload_stats[DEVLINK_RELOAD_STATS_ARRAY_SIZE]; | |
39 | u32 remote_reload_stats[DEVLINK_RELOAD_STATS_ARRAY_SIZE]; | |
40 | }; | |
41 | ||
42 | struct devlink { | |
43 | u32 index; | |
44 | struct list_head port_list; | |
45 | struct list_head rate_list; | |
46 | struct list_head sb_list; | |
47 | struct list_head dpipe_table_list; | |
48 | struct list_head resource_list; | |
49 | struct list_head param_list; | |
50 | struct list_head region_list; | |
51 | struct list_head reporter_list; | |
52 | struct mutex reporters_lock; /* protects reporter_list */ | |
53 | struct devlink_dpipe_headers *dpipe_headers; | |
54 | struct list_head trap_list; | |
55 | struct list_head trap_group_list; | |
56 | struct list_head trap_policer_list; | |
c246f9b5 JP |
57 | struct list_head linecard_list; |
58 | struct mutex linecards_lock; /* protects linecard_list */ | |
21314638 | 59 | const struct devlink_ops *ops; |
bd032e35 | 60 | u64 features; |
21314638 LR |
61 | struct xarray snapshot_ids; |
62 | struct devlink_dev_stats stats; | |
63 | struct device *dev; | |
64 | possible_net_t _net; | |
65 | /* Serializes access to devlink instance specific objects such as | |
66 | * port, sb, dpipe, resource, params, region, traps and more. | |
67 | */ | |
68 | struct mutex lock; | |
e26fde2f | 69 | struct lock_class_key lock_key; |
82465bec | 70 | u8 reload_failed:1; |
21314638 LR |
71 | refcount_t refcount; |
72 | struct completion comp; | |
30bab7cd | 73 | struct rcu_head rcu; |
96d0c9be | 74 | char priv[] __aligned(NETDEV_ALIGN); |
21314638 LR |
75 | }; |
76 | ||
fcdc8ce2 JP |
77 | struct devlink_linecard_ops; |
78 | struct devlink_linecard_type; | |
79 | ||
c246f9b5 JP |
80 | struct devlink_linecard { |
81 | struct list_head list; | |
82 | struct devlink *devlink; | |
83 | unsigned int index; | |
84 | refcount_t refcount; | |
fcdc8ce2 JP |
85 | const struct devlink_linecard_ops *ops; |
86 | void *priv; | |
87 | enum devlink_linecard_state state; | |
c4a67a21 | 88 | struct mutex state_lock; /* Protects state */ |
fcdc8ce2 JP |
89 | const char *type; |
90 | struct devlink_linecard_type *types; | |
91 | unsigned int types_count; | |
7b2d9a1a | 92 | struct devlink *nested_devlink; |
c246f9b5 JP |
93 | }; |
94 | ||
4c897cfc LR |
95 | /** |
96 | * struct devlink_resource - devlink resource | |
97 | * @name: name of the resource | |
98 | * @id: id, per devlink instance | |
99 | * @size: size of the resource | |
100 | * @size_new: updated size of the resource, reload is needed | |
101 | * @size_valid: valid in case the total size of the resource is valid | |
102 | * including its children | |
103 | * @parent: parent resource | |
104 | * @size_params: size parameters | |
105 | * @list: parent list | |
106 | * @resource_list: list of child resources | |
107 | * @occ_get: occupancy getter callback | |
108 | * @occ_get_priv: occupancy getter callback priv | |
109 | */ | |
110 | struct devlink_resource { | |
111 | const char *name; | |
112 | u64 id; | |
113 | u64 size; | |
114 | u64 size_new; | |
115 | bool size_valid; | |
116 | struct devlink_resource *parent; | |
117 | struct devlink_resource_size_params size_params; | |
118 | struct list_head list; | |
119 | struct list_head resource_list; | |
120 | devlink_resource_occ_get_t *occ_get; | |
121 | void *occ_get_priv; | |
122 | }; | |
123 | ||
21314638 LR |
124 | void *devlink_priv(struct devlink *devlink) |
125 | { | |
126 | return &devlink->priv; | |
127 | } | |
128 | EXPORT_SYMBOL_GPL(devlink_priv); | |
129 | ||
130 | struct devlink *priv_to_devlink(void *priv) | |
131 | { | |
132 | return container_of(priv, struct devlink, priv); | |
133 | } | |
134 | EXPORT_SYMBOL_GPL(priv_to_devlink); | |
135 | ||
136 | struct device *devlink_to_dev(const struct devlink *devlink) | |
137 | { | |
138 | return devlink->dev; | |
139 | } | |
140 | EXPORT_SYMBOL_GPL(devlink_to_dev); | |
141 | ||
11770091 AS |
142 | static struct devlink_dpipe_field devlink_dpipe_fields_ethernet[] = { |
143 | { | |
12bdc5e1 | 144 | .name = "destination mac", |
11770091 AS |
145 | .id = DEVLINK_DPIPE_FIELD_ETHERNET_DST_MAC, |
146 | .bitwidth = 48, | |
147 | }, | |
148 | }; | |
149 | ||
150 | struct devlink_dpipe_header devlink_dpipe_header_ethernet = { | |
151 | .name = "ethernet", | |
152 | .id = DEVLINK_DPIPE_HEADER_ETHERNET, | |
153 | .fields = devlink_dpipe_fields_ethernet, | |
154 | .fields_count = ARRAY_SIZE(devlink_dpipe_fields_ethernet), | |
155 | .global = true, | |
156 | }; | |
c52ef04d | 157 | EXPORT_SYMBOL_GPL(devlink_dpipe_header_ethernet); |
11770091 | 158 | |
3fb886ec AS |
159 | static struct devlink_dpipe_field devlink_dpipe_fields_ipv4[] = { |
160 | { | |
161 | .name = "destination ip", | |
162 | .id = DEVLINK_DPIPE_FIELD_IPV4_DST_IP, | |
163 | .bitwidth = 32, | |
164 | }, | |
165 | }; | |
166 | ||
167 | struct devlink_dpipe_header devlink_dpipe_header_ipv4 = { | |
168 | .name = "ipv4", | |
169 | .id = DEVLINK_DPIPE_HEADER_IPV4, | |
170 | .fields = devlink_dpipe_fields_ipv4, | |
171 | .fields_count = ARRAY_SIZE(devlink_dpipe_fields_ipv4), | |
172 | .global = true, | |
173 | }; | |
c52ef04d | 174 | EXPORT_SYMBOL_GPL(devlink_dpipe_header_ipv4); |
3fb886ec | 175 | |
1797f5b3 AS |
176 | static struct devlink_dpipe_field devlink_dpipe_fields_ipv6[] = { |
177 | { | |
178 | .name = "destination ip", | |
179 | .id = DEVLINK_DPIPE_FIELD_IPV6_DST_IP, | |
180 | .bitwidth = 128, | |
181 | }, | |
182 | }; | |
183 | ||
184 | struct devlink_dpipe_header devlink_dpipe_header_ipv6 = { | |
185 | .name = "ipv6", | |
186 | .id = DEVLINK_DPIPE_HEADER_IPV6, | |
187 | .fields = devlink_dpipe_fields_ipv6, | |
188 | .fields_count = ARRAY_SIZE(devlink_dpipe_fields_ipv6), | |
189 | .global = true, | |
190 | }; | |
c52ef04d | 191 | EXPORT_SYMBOL_GPL(devlink_dpipe_header_ipv6); |
1797f5b3 | 192 | |
e5224f0f | 193 | EXPORT_TRACEPOINT_SYMBOL_GPL(devlink_hwmsg); |
57186a5f | 194 | EXPORT_TRACEPOINT_SYMBOL_GPL(devlink_hwerr); |
5b88823b | 195 | EXPORT_TRACEPOINT_SYMBOL_GPL(devlink_trap_report); |
bfcd3a46 | 196 | |
a1e8ae90 PP |
197 | static const struct nla_policy devlink_function_nl_policy[DEVLINK_PORT_FUNCTION_ATTR_MAX + 1] = { |
198 | [DEVLINK_PORT_FUNCTION_ATTR_HW_ADDR] = { .type = NLA_BINARY }, | |
a556dded PP |
199 | [DEVLINK_PORT_FN_ATTR_STATE] = |
200 | NLA_POLICY_RANGE(NLA_U8, DEVLINK_PORT_FN_STATE_INACTIVE, | |
201 | DEVLINK_PORT_FN_STATE_ACTIVE), | |
a1e8ae90 PP |
202 | }; |
203 | ||
08f588fa VG |
204 | static const struct nla_policy devlink_selftest_nl_policy[DEVLINK_ATTR_SELFTEST_ID_MAX + 1] = { |
205 | [DEVLINK_ATTR_SELFTEST_ID_FLASH] = { .type = NLA_FLAG }, | |
206 | }; | |
207 | ||
11a861d7 LR |
208 | static DEFINE_XARRAY_FLAGS(devlinks, XA_FLAGS_ALLOC); |
209 | #define DEVLINK_REGISTERED XA_MARK_1 | |
c2368b19 | 210 | #define DEVLINK_UNREGISTERING XA_MARK_2 |
bfcd3a46 | 211 | |
b88f7b12 LR |
212 | /* devlink instances are open to the access from the user space after |
213 | * devlink_register() call. Such logical barrier allows us to have certain | |
214 | * expectations related to locking. | |
215 | * | |
216 | * Before *_register() - we are in initialization stage and no parallel | |
217 | * access possible to the devlink instance. All drivers perform that phase | |
218 | * by implicitly holding device_lock. | |
219 | * | |
220 | * After *_register() - users and driver can access devlink instance at | |
221 | * the same time. | |
222 | */ | |
223 | #define ASSERT_DEVLINK_REGISTERED(d) \ | |
224 | WARN_ON_ONCE(!xa_get_mark(&devlinks, (d)->index, DEVLINK_REGISTERED)) | |
225 | #define ASSERT_DEVLINK_NOT_REGISTERED(d) \ | |
226 | WARN_ON_ONCE(xa_get_mark(&devlinks, (d)->index, DEVLINK_REGISTERED)) | |
227 | ||
bfcd3a46 JP |
228 | /* devlink_mutex |
229 | * | |
230 | * An overall lock guarding every operation coming from userspace. | |
bfcd3a46 JP |
231 | */ |
232 | static DEFINE_MUTEX(devlink_mutex); | |
233 | ||
471f894f | 234 | struct net *devlink_net(const struct devlink *devlink) |
bfcd3a46 JP |
235 | { |
236 | return read_pnet(&devlink->_net); | |
237 | } | |
471f894f | 238 | EXPORT_SYMBOL_GPL(devlink_net); |
bfcd3a46 | 239 | |
30bab7cd JP |
240 | static void __devlink_put_rcu(struct rcu_head *head) |
241 | { | |
242 | struct devlink *devlink = container_of(head, struct devlink, rcu); | |
243 | ||
244 | complete(&devlink->comp); | |
245 | } | |
246 | ||
46db1b77 | 247 | void devlink_put(struct devlink *devlink) |
437ebfd9 LR |
248 | { |
249 | if (refcount_dec_and_test(&devlink->refcount)) | |
30bab7cd JP |
250 | /* Make sure unregister operation that may await the completion |
251 | * is unblocked only after all users are after the end of | |
252 | * RCU grace period. | |
253 | */ | |
254 | call_rcu(&devlink->rcu, __devlink_put_rcu); | |
437ebfd9 LR |
255 | } |
256 | ||
46db1b77 | 257 | struct devlink *__must_check devlink_try_get(struct devlink *devlink) |
437ebfd9 | 258 | { |
46db1b77 JK |
259 | if (refcount_inc_not_zero(&devlink->refcount)) |
260 | return devlink; | |
261 | return NULL; | |
437ebfd9 LR |
262 | } |
263 | ||
2cb7b489 JK |
264 | void devl_assert_locked(struct devlink *devlink) |
265 | { | |
266 | lockdep_assert_held(&devlink->lock); | |
267 | } | |
268 | EXPORT_SYMBOL_GPL(devl_assert_locked); | |
269 | ||
270 | #ifdef CONFIG_LOCKDEP | |
271 | /* For use in conjunction with LOCKDEP only e.g. rcu_dereference_protected() */ | |
272 | bool devl_lock_is_held(struct devlink *devlink) | |
273 | { | |
274 | return lockdep_is_held(&devlink->lock); | |
275 | } | |
276 | EXPORT_SYMBOL_GPL(devl_lock_is_held); | |
277 | #endif | |
278 | ||
279 | void devl_lock(struct devlink *devlink) | |
280 | { | |
281 | mutex_lock(&devlink->lock); | |
282 | } | |
283 | EXPORT_SYMBOL_GPL(devl_lock); | |
284 | ||
012ec02a JP |
285 | int devl_trylock(struct devlink *devlink) |
286 | { | |
287 | return mutex_trylock(&devlink->lock); | |
288 | } | |
289 | EXPORT_SYMBOL_GPL(devl_trylock); | |
290 | ||
2cb7b489 JK |
291 | void devl_unlock(struct devlink *devlink) |
292 | { | |
293 | mutex_unlock(&devlink->lock); | |
294 | } | |
295 | EXPORT_SYMBOL_GPL(devl_unlock); | |
296 | ||
30bab7cd | 297 | static struct devlink * |
294c4f57 | 298 | devlinks_xa_find_get(struct net *net, unsigned long *indexp, xa_mark_t filter, |
30bab7cd JP |
299 | void * (*xa_find_fn)(struct xarray *, unsigned long *, |
300 | unsigned long, xa_mark_t)) | |
301 | { | |
302 | struct devlink *devlink; | |
303 | ||
304 | rcu_read_lock(); | |
305 | retry: | |
306 | devlink = xa_find_fn(&devlinks, indexp, ULONG_MAX, DEVLINK_REGISTERED); | |
307 | if (!devlink) | |
308 | goto unlock; | |
c2368b19 JP |
309 | |
310 | /* In case devlink_unregister() was already called and "unregistering" | |
311 | * mark was set, do not allow to get a devlink reference here. | |
312 | * This prevents live-lock of devlink_unregister() wait for completion. | |
313 | */ | |
314 | if (xa_get_mark(&devlinks, *indexp, DEVLINK_UNREGISTERING)) | |
315 | goto retry; | |
316 | ||
30bab7cd JP |
317 | /* For a possible retry, the xa_find_after() should be always used */ |
318 | xa_find_fn = xa_find_after; | |
319 | if (!devlink_try_get(devlink)) | |
320 | goto retry; | |
294c4f57 JP |
321 | if (!net_eq(devlink_net(devlink), net)) { |
322 | devlink_put(devlink); | |
323 | goto retry; | |
324 | } | |
30bab7cd JP |
325 | unlock: |
326 | rcu_read_unlock(); | |
327 | return devlink; | |
328 | } | |
329 | ||
294c4f57 JP |
330 | static struct devlink *devlinks_xa_find_get_first(struct net *net, |
331 | unsigned long *indexp, | |
30bab7cd JP |
332 | xa_mark_t filter) |
333 | { | |
294c4f57 | 334 | return devlinks_xa_find_get(net, indexp, filter, xa_find); |
30bab7cd JP |
335 | } |
336 | ||
294c4f57 JP |
337 | static struct devlink *devlinks_xa_find_get_next(struct net *net, |
338 | unsigned long *indexp, | |
30bab7cd JP |
339 | xa_mark_t filter) |
340 | { | |
294c4f57 | 341 | return devlinks_xa_find_get(net, indexp, filter, xa_find_after); |
30bab7cd JP |
342 | } |
343 | ||
344 | /* Iterate over devlink pointers which were possible to get reference to. | |
345 | * devlink_put() needs to be called for each iterated devlink pointer | |
346 | * in loop body in order to release the reference. | |
347 | */ | |
294c4f57 JP |
348 | #define devlinks_xa_for_each_get(net, index, devlink, filter) \ |
349 | for (index = 0, \ | |
350 | devlink = devlinks_xa_find_get_first(net, &index, filter); \ | |
351 | devlink; devlink = devlinks_xa_find_get_next(net, &index, filter)) | |
30bab7cd | 352 | |
294c4f57 JP |
353 | #define devlinks_xa_for_each_registered_get(net, index, devlink) \ |
354 | devlinks_xa_for_each_get(net, index, devlink, DEVLINK_REGISTERED) | |
30bab7cd | 355 | |
bfcd3a46 JP |
356 | static struct devlink *devlink_get_from_attrs(struct net *net, |
357 | struct nlattr **attrs) | |
358 | { | |
359 | struct devlink *devlink; | |
11a861d7 | 360 | unsigned long index; |
bfcd3a46 JP |
361 | char *busname; |
362 | char *devname; | |
363 | ||
364 | if (!attrs[DEVLINK_ATTR_BUS_NAME] || !attrs[DEVLINK_ATTR_DEV_NAME]) | |
365 | return ERR_PTR(-EINVAL); | |
366 | ||
367 | busname = nla_data(attrs[DEVLINK_ATTR_BUS_NAME]); | |
368 | devname = nla_data(attrs[DEVLINK_ATTR_DEV_NAME]); | |
369 | ||
294c4f57 | 370 | devlinks_xa_for_each_registered_get(net, index, devlink) { |
bfcd3a46 | 371 | if (strcmp(devlink->dev->bus->name, busname) == 0 && |
294c4f57 | 372 | strcmp(dev_name(devlink->dev), devname) == 0) |
30bab7cd JP |
373 | return devlink; |
374 | devlink_put(devlink); | |
bfcd3a46 JP |
375 | } |
376 | ||
30bab7cd | 377 | return ERR_PTR(-ENODEV); |
bfcd3a46 JP |
378 | } |
379 | ||
380 | static struct devlink_port *devlink_port_get_by_index(struct devlink *devlink, | |
c7282b50 | 381 | unsigned int port_index) |
bfcd3a46 JP |
382 | { |
383 | struct devlink_port *devlink_port; | |
384 | ||
385 | list_for_each_entry(devlink_port, &devlink->port_list, list) { | |
386 | if (devlink_port->index == port_index) | |
387 | return devlink_port; | |
388 | } | |
389 | return NULL; | |
390 | } | |
391 | ||
c7282b50 PP |
392 | static bool devlink_port_index_exists(struct devlink *devlink, |
393 | unsigned int port_index) | |
bfcd3a46 JP |
394 | { |
395 | return devlink_port_get_by_index(devlink, port_index); | |
396 | } | |
397 | ||
398 | static struct devlink_port *devlink_port_get_from_attrs(struct devlink *devlink, | |
399 | struct nlattr **attrs) | |
400 | { | |
401 | if (attrs[DEVLINK_ATTR_PORT_INDEX]) { | |
402 | u32 port_index = nla_get_u32(attrs[DEVLINK_ATTR_PORT_INDEX]); | |
403 | struct devlink_port *devlink_port; | |
404 | ||
405 | devlink_port = devlink_port_get_by_index(devlink, port_index); | |
406 | if (!devlink_port) | |
407 | return ERR_PTR(-ENODEV); | |
408 | return devlink_port; | |
409 | } | |
410 | return ERR_PTR(-EINVAL); | |
411 | } | |
412 | ||
413 | static struct devlink_port *devlink_port_get_from_info(struct devlink *devlink, | |
414 | struct genl_info *info) | |
415 | { | |
416 | return devlink_port_get_from_attrs(devlink, info->attrs); | |
417 | } | |
418 | ||
4677efc4 DL |
419 | static inline bool |
420 | devlink_rate_is_leaf(struct devlink_rate *devlink_rate) | |
421 | { | |
422 | return devlink_rate->type == DEVLINK_RATE_TYPE_LEAF; | |
423 | } | |
424 | ||
a8ecb93e DL |
425 | static inline bool |
426 | devlink_rate_is_node(struct devlink_rate *devlink_rate) | |
427 | { | |
428 | return devlink_rate->type == DEVLINK_RATE_TYPE_NODE; | |
429 | } | |
430 | ||
4677efc4 DL |
431 | static struct devlink_rate * |
432 | devlink_rate_leaf_get_from_info(struct devlink *devlink, struct genl_info *info) | |
433 | { | |
434 | struct devlink_rate *devlink_rate; | |
435 | struct devlink_port *devlink_port; | |
436 | ||
437 | devlink_port = devlink_port_get_from_attrs(devlink, info->attrs); | |
438 | if (IS_ERR(devlink_port)) | |
439 | return ERR_CAST(devlink_port); | |
440 | devlink_rate = devlink_port->devlink_rate; | |
441 | return devlink_rate ?: ERR_PTR(-ENODEV); | |
442 | } | |
443 | ||
a8ecb93e DL |
444 | static struct devlink_rate * |
445 | devlink_rate_node_get_by_name(struct devlink *devlink, const char *node_name) | |
446 | { | |
447 | static struct devlink_rate *devlink_rate; | |
448 | ||
449 | list_for_each_entry(devlink_rate, &devlink->rate_list, list) { | |
450 | if (devlink_rate_is_node(devlink_rate) && | |
451 | !strcmp(node_name, devlink_rate->name)) | |
452 | return devlink_rate; | |
453 | } | |
454 | return ERR_PTR(-ENODEV); | |
455 | } | |
456 | ||
457 | static struct devlink_rate * | |
458 | devlink_rate_node_get_from_attrs(struct devlink *devlink, struct nlattr **attrs) | |
459 | { | |
460 | const char *rate_node_name; | |
461 | size_t len; | |
462 | ||
463 | if (!attrs[DEVLINK_ATTR_RATE_NODE_NAME]) | |
464 | return ERR_PTR(-EINVAL); | |
465 | rate_node_name = nla_data(attrs[DEVLINK_ATTR_RATE_NODE_NAME]); | |
466 | len = strlen(rate_node_name); | |
467 | /* Name cannot be empty or decimal number */ | |
468 | if (!len || strspn(rate_node_name, "0123456789") == len) | |
469 | return ERR_PTR(-EINVAL); | |
470 | ||
471 | return devlink_rate_node_get_by_name(devlink, rate_node_name); | |
472 | } | |
473 | ||
474 | static struct devlink_rate * | |
475 | devlink_rate_node_get_from_info(struct devlink *devlink, struct genl_info *info) | |
476 | { | |
477 | return devlink_rate_node_get_from_attrs(devlink, info->attrs); | |
478 | } | |
479 | ||
480 | static struct devlink_rate * | |
481 | devlink_rate_get_from_info(struct devlink *devlink, struct genl_info *info) | |
482 | { | |
483 | struct nlattr **attrs = info->attrs; | |
484 | ||
485 | if (attrs[DEVLINK_ATTR_PORT_INDEX]) | |
486 | return devlink_rate_leaf_get_from_info(devlink, info); | |
487 | else if (attrs[DEVLINK_ATTR_RATE_NODE_NAME]) | |
488 | return devlink_rate_node_get_from_info(devlink, info); | |
489 | else | |
490 | return ERR_PTR(-EINVAL); | |
491 | } | |
492 | ||
c246f9b5 JP |
493 | static struct devlink_linecard * |
494 | devlink_linecard_get_by_index(struct devlink *devlink, | |
495 | unsigned int linecard_index) | |
496 | { | |
497 | struct devlink_linecard *devlink_linecard; | |
498 | ||
499 | list_for_each_entry(devlink_linecard, &devlink->linecard_list, list) { | |
500 | if (devlink_linecard->index == linecard_index) | |
501 | return devlink_linecard; | |
502 | } | |
503 | return NULL; | |
504 | } | |
505 | ||
506 | static bool devlink_linecard_index_exists(struct devlink *devlink, | |
507 | unsigned int linecard_index) | |
508 | { | |
509 | return devlink_linecard_get_by_index(devlink, linecard_index); | |
510 | } | |
511 | ||
512 | static struct devlink_linecard * | |
513 | devlink_linecard_get_from_attrs(struct devlink *devlink, struct nlattr **attrs) | |
514 | { | |
515 | if (attrs[DEVLINK_ATTR_LINECARD_INDEX]) { | |
516 | u32 linecard_index = nla_get_u32(attrs[DEVLINK_ATTR_LINECARD_INDEX]); | |
517 | struct devlink_linecard *linecard; | |
518 | ||
519 | mutex_lock(&devlink->linecards_lock); | |
520 | linecard = devlink_linecard_get_by_index(devlink, linecard_index); | |
521 | if (linecard) | |
522 | refcount_inc(&linecard->refcount); | |
523 | mutex_unlock(&devlink->linecards_lock); | |
524 | if (!linecard) | |
525 | return ERR_PTR(-ENODEV); | |
526 | return linecard; | |
527 | } | |
528 | return ERR_PTR(-EINVAL); | |
529 | } | |
530 | ||
531 | static struct devlink_linecard * | |
532 | devlink_linecard_get_from_info(struct devlink *devlink, struct genl_info *info) | |
533 | { | |
534 | return devlink_linecard_get_from_attrs(devlink, info->attrs); | |
535 | } | |
536 | ||
537 | static void devlink_linecard_put(struct devlink_linecard *linecard) | |
538 | { | |
fcdc8ce2 JP |
539 | if (refcount_dec_and_test(&linecard->refcount)) { |
540 | mutex_destroy(&linecard->state_lock); | |
c246f9b5 | 541 | kfree(linecard); |
fcdc8ce2 | 542 | } |
c246f9b5 JP |
543 | } |
544 | ||
bf797471 JP |
545 | struct devlink_sb { |
546 | struct list_head list; | |
547 | unsigned int index; | |
548 | u32 size; | |
549 | u16 ingress_pools_count; | |
550 | u16 egress_pools_count; | |
551 | u16 ingress_tc_count; | |
552 | u16 egress_tc_count; | |
553 | }; | |
554 | ||
555 | static u16 devlink_sb_pool_count(struct devlink_sb *devlink_sb) | |
556 | { | |
557 | return devlink_sb->ingress_pools_count + devlink_sb->egress_pools_count; | |
558 | } | |
559 | ||
560 | static struct devlink_sb *devlink_sb_get_by_index(struct devlink *devlink, | |
561 | unsigned int sb_index) | |
562 | { | |
563 | struct devlink_sb *devlink_sb; | |
564 | ||
565 | list_for_each_entry(devlink_sb, &devlink->sb_list, list) { | |
566 | if (devlink_sb->index == sb_index) | |
567 | return devlink_sb; | |
568 | } | |
569 | return NULL; | |
570 | } | |
571 | ||
572 | static bool devlink_sb_index_exists(struct devlink *devlink, | |
573 | unsigned int sb_index) | |
574 | { | |
575 | return devlink_sb_get_by_index(devlink, sb_index); | |
576 | } | |
577 | ||
578 | static struct devlink_sb *devlink_sb_get_from_attrs(struct devlink *devlink, | |
579 | struct nlattr **attrs) | |
580 | { | |
581 | if (attrs[DEVLINK_ATTR_SB_INDEX]) { | |
582 | u32 sb_index = nla_get_u32(attrs[DEVLINK_ATTR_SB_INDEX]); | |
583 | struct devlink_sb *devlink_sb; | |
584 | ||
585 | devlink_sb = devlink_sb_get_by_index(devlink, sb_index); | |
586 | if (!devlink_sb) | |
587 | return ERR_PTR(-ENODEV); | |
588 | return devlink_sb; | |
589 | } | |
590 | return ERR_PTR(-EINVAL); | |
591 | } | |
592 | ||
593 | static struct devlink_sb *devlink_sb_get_from_info(struct devlink *devlink, | |
594 | struct genl_info *info) | |
595 | { | |
596 | return devlink_sb_get_from_attrs(devlink, info->attrs); | |
597 | } | |
598 | ||
599 | static int devlink_sb_pool_index_get_from_attrs(struct devlink_sb *devlink_sb, | |
600 | struct nlattr **attrs, | |
601 | u16 *p_pool_index) | |
602 | { | |
603 | u16 val; | |
604 | ||
605 | if (!attrs[DEVLINK_ATTR_SB_POOL_INDEX]) | |
606 | return -EINVAL; | |
607 | ||
608 | val = nla_get_u16(attrs[DEVLINK_ATTR_SB_POOL_INDEX]); | |
609 | if (val >= devlink_sb_pool_count(devlink_sb)) | |
610 | return -EINVAL; | |
611 | *p_pool_index = val; | |
612 | return 0; | |
613 | } | |
614 | ||
615 | static int devlink_sb_pool_index_get_from_info(struct devlink_sb *devlink_sb, | |
616 | struct genl_info *info, | |
617 | u16 *p_pool_index) | |
618 | { | |
619 | return devlink_sb_pool_index_get_from_attrs(devlink_sb, info->attrs, | |
620 | p_pool_index); | |
621 | } | |
622 | ||
623 | static int | |
624 | devlink_sb_pool_type_get_from_attrs(struct nlattr **attrs, | |
625 | enum devlink_sb_pool_type *p_pool_type) | |
626 | { | |
627 | u8 val; | |
628 | ||
629 | if (!attrs[DEVLINK_ATTR_SB_POOL_TYPE]) | |
630 | return -EINVAL; | |
631 | ||
632 | val = nla_get_u8(attrs[DEVLINK_ATTR_SB_POOL_TYPE]); | |
633 | if (val != DEVLINK_SB_POOL_TYPE_INGRESS && | |
634 | val != DEVLINK_SB_POOL_TYPE_EGRESS) | |
635 | return -EINVAL; | |
636 | *p_pool_type = val; | |
637 | return 0; | |
638 | } | |
639 | ||
640 | static int | |
641 | devlink_sb_pool_type_get_from_info(struct genl_info *info, | |
642 | enum devlink_sb_pool_type *p_pool_type) | |
643 | { | |
644 | return devlink_sb_pool_type_get_from_attrs(info->attrs, p_pool_type); | |
645 | } | |
646 | ||
647 | static int | |
648 | devlink_sb_th_type_get_from_attrs(struct nlattr **attrs, | |
649 | enum devlink_sb_threshold_type *p_th_type) | |
650 | { | |
651 | u8 val; | |
652 | ||
653 | if (!attrs[DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE]) | |
654 | return -EINVAL; | |
655 | ||
656 | val = nla_get_u8(attrs[DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE]); | |
657 | if (val != DEVLINK_SB_THRESHOLD_TYPE_STATIC && | |
658 | val != DEVLINK_SB_THRESHOLD_TYPE_DYNAMIC) | |
659 | return -EINVAL; | |
660 | *p_th_type = val; | |
661 | return 0; | |
662 | } | |
663 | ||
664 | static int | |
665 | devlink_sb_th_type_get_from_info(struct genl_info *info, | |
666 | enum devlink_sb_threshold_type *p_th_type) | |
667 | { | |
668 | return devlink_sb_th_type_get_from_attrs(info->attrs, p_th_type); | |
669 | } | |
670 | ||
671 | static int | |
672 | devlink_sb_tc_index_get_from_attrs(struct devlink_sb *devlink_sb, | |
673 | struct nlattr **attrs, | |
674 | enum devlink_sb_pool_type pool_type, | |
675 | u16 *p_tc_index) | |
676 | { | |
677 | u16 val; | |
678 | ||
679 | if (!attrs[DEVLINK_ATTR_SB_TC_INDEX]) | |
680 | return -EINVAL; | |
681 | ||
682 | val = nla_get_u16(attrs[DEVLINK_ATTR_SB_TC_INDEX]); | |
683 | if (pool_type == DEVLINK_SB_POOL_TYPE_INGRESS && | |
684 | val >= devlink_sb->ingress_tc_count) | |
685 | return -EINVAL; | |
686 | if (pool_type == DEVLINK_SB_POOL_TYPE_EGRESS && | |
687 | val >= devlink_sb->egress_tc_count) | |
688 | return -EINVAL; | |
689 | *p_tc_index = val; | |
690 | return 0; | |
691 | } | |
692 | ||
693 | static int | |
694 | devlink_sb_tc_index_get_from_info(struct devlink_sb *devlink_sb, | |
695 | struct genl_info *info, | |
696 | enum devlink_sb_pool_type pool_type, | |
697 | u16 *p_tc_index) | |
698 | { | |
699 | return devlink_sb_tc_index_get_from_attrs(devlink_sb, info->attrs, | |
700 | pool_type, p_tc_index); | |
701 | } | |
702 | ||
b16ebe92 AV |
703 | struct devlink_region { |
704 | struct devlink *devlink; | |
544e7c33 | 705 | struct devlink_port *port; |
b16ebe92 | 706 | struct list_head list; |
544e7c33 AL |
707 | union { |
708 | const struct devlink_region_ops *ops; | |
709 | const struct devlink_port_region_ops *port_ops; | |
710 | }; | |
2dec18ad JP |
711 | struct mutex snapshot_lock; /* protects snapshot_list, |
712 | * max_snapshots and cur_snapshots | |
713 | * consistency. | |
714 | */ | |
b16ebe92 AV |
715 | struct list_head snapshot_list; |
716 | u32 max_snapshots; | |
717 | u32 cur_snapshots; | |
718 | u64 size; | |
719 | }; | |
720 | ||
d7e52722 AV |
721 | struct devlink_snapshot { |
722 | struct list_head list; | |
723 | struct devlink_region *region; | |
d7e52722 AV |
724 | u8 *data; |
725 | u32 id; | |
726 | }; | |
727 | ||
b16ebe92 AV |
728 | static struct devlink_region * |
729 | devlink_region_get_by_name(struct devlink *devlink, const char *region_name) | |
730 | { | |
731 | struct devlink_region *region; | |
732 | ||
733 | list_for_each_entry(region, &devlink->region_list, list) | |
e8937681 | 734 | if (!strcmp(region->ops->name, region_name)) |
b16ebe92 AV |
735 | return region; |
736 | ||
737 | return NULL; | |
738 | } | |
739 | ||
544e7c33 AL |
740 | static struct devlink_region * |
741 | devlink_port_region_get_by_name(struct devlink_port *port, | |
742 | const char *region_name) | |
743 | { | |
744 | struct devlink_region *region; | |
745 | ||
746 | list_for_each_entry(region, &port->region_list, list) | |
747 | if (!strcmp(region->ops->name, region_name)) | |
748 | return region; | |
749 | ||
750 | return NULL; | |
751 | } | |
752 | ||
d7e52722 AV |
753 | static struct devlink_snapshot * |
754 | devlink_region_snapshot_get_by_id(struct devlink_region *region, u32 id) | |
755 | { | |
756 | struct devlink_snapshot *snapshot; | |
757 | ||
758 | list_for_each_entry(snapshot, ®ion->snapshot_list, list) | |
759 | if (snapshot->id == id) | |
760 | return snapshot; | |
761 | ||
762 | return NULL; | |
763 | } | |
764 | ||
637989b5 PP |
765 | #define DEVLINK_NL_FLAG_NEED_PORT BIT(0) |
766 | #define DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT BIT(1) | |
4677efc4 | 767 | #define DEVLINK_NL_FLAG_NEED_RATE BIT(2) |
a8ecb93e | 768 | #define DEVLINK_NL_FLAG_NEED_RATE_NODE BIT(3) |
c246f9b5 | 769 | #define DEVLINK_NL_FLAG_NEED_LINECARD BIT(4) |
2406e7e5 AS |
770 | |
771 | /* The per devlink instance lock is taken by default in the pre-doit | |
772 | * operation, yet several commands do not require this. The global | |
773 | * devlink lock is taken and protects from disruption by user-calls. | |
774 | */ | |
c246f9b5 | 775 | #define DEVLINK_NL_FLAG_NO_LOCK BIT(5) |
bfcd3a46 JP |
776 | |
777 | static int devlink_nl_pre_doit(const struct genl_ops *ops, | |
778 | struct sk_buff *skb, struct genl_info *info) | |
779 | { | |
c246f9b5 | 780 | struct devlink_linecard *linecard; |
f4f54166 | 781 | struct devlink_port *devlink_port; |
bfcd3a46 | 782 | struct devlink *devlink; |
2406e7e5 | 783 | int err; |
bfcd3a46 JP |
784 | |
785 | mutex_lock(&devlink_mutex); | |
437ebfd9 | 786 | devlink = devlink_get_from_attrs(genl_info_net(info), info->attrs); |
bfcd3a46 JP |
787 | if (IS_ERR(devlink)) { |
788 | mutex_unlock(&devlink_mutex); | |
789 | return PTR_ERR(devlink); | |
790 | } | |
2406e7e5 | 791 | if (~ops->internal_flags & DEVLINK_NL_FLAG_NO_LOCK) |
7715023a | 792 | devl_lock(devlink); |
637989b5 PP |
793 | info->user_ptr[0] = devlink; |
794 | if (ops->internal_flags & DEVLINK_NL_FLAG_NEED_PORT) { | |
bfcd3a46 JP |
795 | devlink_port = devlink_port_get_from_info(devlink, info); |
796 | if (IS_ERR(devlink_port)) { | |
2406e7e5 AS |
797 | err = PTR_ERR(devlink_port); |
798 | goto unlock; | |
bfcd3a46 | 799 | } |
637989b5 | 800 | info->user_ptr[1] = devlink_port; |
f4f54166 | 801 | } else if (ops->internal_flags & DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT) { |
f4f54166 VT |
802 | devlink_port = devlink_port_get_from_info(devlink, info); |
803 | if (!IS_ERR(devlink_port)) | |
804 | info->user_ptr[1] = devlink_port; | |
4677efc4 DL |
805 | } else if (ops->internal_flags & DEVLINK_NL_FLAG_NEED_RATE) { |
806 | struct devlink_rate *devlink_rate; | |
807 | ||
a8ecb93e | 808 | devlink_rate = devlink_rate_get_from_info(devlink, info); |
4677efc4 DL |
809 | if (IS_ERR(devlink_rate)) { |
810 | err = PTR_ERR(devlink_rate); | |
811 | goto unlock; | |
812 | } | |
813 | info->user_ptr[1] = devlink_rate; | |
a8ecb93e DL |
814 | } else if (ops->internal_flags & DEVLINK_NL_FLAG_NEED_RATE_NODE) { |
815 | struct devlink_rate *rate_node; | |
816 | ||
817 | rate_node = devlink_rate_node_get_from_info(devlink, info); | |
818 | if (IS_ERR(rate_node)) { | |
819 | err = PTR_ERR(rate_node); | |
820 | goto unlock; | |
821 | } | |
822 | info->user_ptr[1] = rate_node; | |
c246f9b5 JP |
823 | } else if (ops->internal_flags & DEVLINK_NL_FLAG_NEED_LINECARD) { |
824 | linecard = devlink_linecard_get_from_info(devlink, info); | |
825 | if (IS_ERR(linecard)) { | |
826 | err = PTR_ERR(linecard); | |
827 | goto unlock; | |
828 | } | |
829 | info->user_ptr[1] = linecard; | |
bfcd3a46 JP |
830 | } |
831 | return 0; | |
2406e7e5 AS |
832 | |
833 | unlock: | |
834 | if (~ops->internal_flags & DEVLINK_NL_FLAG_NO_LOCK) | |
7715023a | 835 | devl_unlock(devlink); |
437ebfd9 | 836 | devlink_put(devlink); |
2406e7e5 AS |
837 | mutex_unlock(&devlink_mutex); |
838 | return err; | |
bfcd3a46 JP |
839 | } |
840 | ||
841 | static void devlink_nl_post_doit(const struct genl_ops *ops, | |
842 | struct sk_buff *skb, struct genl_info *info) | |
843 | { | |
c246f9b5 | 844 | struct devlink_linecard *linecard; |
2406e7e5 AS |
845 | struct devlink *devlink; |
846 | ||
637989b5 | 847 | devlink = info->user_ptr[0]; |
c246f9b5 JP |
848 | if (ops->internal_flags & DEVLINK_NL_FLAG_NEED_LINECARD) { |
849 | linecard = info->user_ptr[1]; | |
850 | devlink_linecard_put(linecard); | |
851 | } | |
637989b5 | 852 | if (~ops->internal_flags & DEVLINK_NL_FLAG_NO_LOCK) |
7715023a | 853 | devl_unlock(devlink); |
437ebfd9 | 854 | devlink_put(devlink); |
bfcd3a46 JP |
855 | mutex_unlock(&devlink_mutex); |
856 | } | |
857 | ||
489111e5 | 858 | static struct genl_family devlink_nl_family; |
bfcd3a46 JP |
859 | |
860 | enum devlink_multicast_groups { | |
861 | DEVLINK_MCGRP_CONFIG, | |
862 | }; | |
863 | ||
864 | static const struct genl_multicast_group devlink_nl_mcgrps[] = { | |
865 | [DEVLINK_MCGRP_CONFIG] = { .name = DEVLINK_GENL_MCGRP_CONFIG_NAME }, | |
866 | }; | |
867 | ||
868 | static int devlink_nl_put_handle(struct sk_buff *msg, struct devlink *devlink) | |
869 | { | |
870 | if (nla_put_string(msg, DEVLINK_ATTR_BUS_NAME, devlink->dev->bus->name)) | |
871 | return -EMSGSIZE; | |
872 | if (nla_put_string(msg, DEVLINK_ATTR_DEV_NAME, dev_name(devlink->dev))) | |
873 | return -EMSGSIZE; | |
874 | return 0; | |
875 | } | |
876 | ||
7b2d9a1a JP |
877 | static int devlink_nl_put_nested_handle(struct sk_buff *msg, struct devlink *devlink) |
878 | { | |
879 | struct nlattr *nested_attr; | |
880 | ||
881 | nested_attr = nla_nest_start(msg, DEVLINK_ATTR_NESTED_DEVLINK); | |
882 | if (!nested_attr) | |
883 | return -EMSGSIZE; | |
884 | if (devlink_nl_put_handle(msg, devlink)) | |
885 | goto nla_put_failure; | |
886 | ||
887 | nla_nest_end(msg, nested_attr); | |
888 | return 0; | |
889 | ||
890 | nla_put_failure: | |
891 | nla_nest_cancel(msg, nested_attr); | |
892 | return -EMSGSIZE; | |
893 | } | |
894 | ||
dc64cc7c MS |
895 | struct devlink_reload_combination { |
896 | enum devlink_reload_action action; | |
897 | enum devlink_reload_limit limit; | |
898 | }; | |
899 | ||
900 | static const struct devlink_reload_combination devlink_reload_invalid_combinations[] = { | |
901 | { | |
902 | /* can't reinitialize driver with no down time */ | |
903 | .action = DEVLINK_RELOAD_ACTION_DRIVER_REINIT, | |
904 | .limit = DEVLINK_RELOAD_LIMIT_NO_RESET, | |
905 | }, | |
906 | }; | |
907 | ||
908 | static bool | |
909 | devlink_reload_combination_is_invalid(enum devlink_reload_action action, | |
910 | enum devlink_reload_limit limit) | |
911 | { | |
912 | int i; | |
913 | ||
914 | for (i = 0; i < ARRAY_SIZE(devlink_reload_invalid_combinations); i++) | |
915 | if (devlink_reload_invalid_combinations[i].action == action && | |
916 | devlink_reload_invalid_combinations[i].limit == limit) | |
917 | return true; | |
918 | return false; | |
919 | } | |
920 | ||
ccdf0721 MS |
921 | static bool |
922 | devlink_reload_action_is_supported(struct devlink *devlink, enum devlink_reload_action action) | |
923 | { | |
924 | return test_bit(action, &devlink->ops->reload_actions); | |
925 | } | |
926 | ||
dc64cc7c MS |
927 | static bool |
928 | devlink_reload_limit_is_supported(struct devlink *devlink, enum devlink_reload_limit limit) | |
929 | { | |
930 | return test_bit(limit, &devlink->ops->reload_limits); | |
931 | } | |
932 | ||
5204bb68 | 933 | static int devlink_reload_stat_put(struct sk_buff *msg, |
a254c264 MS |
934 | enum devlink_reload_limit limit, u32 value) |
935 | { | |
936 | struct nlattr *reload_stats_entry; | |
937 | ||
938 | reload_stats_entry = nla_nest_start(msg, DEVLINK_ATTR_RELOAD_STATS_ENTRY); | |
939 | if (!reload_stats_entry) | |
940 | return -EMSGSIZE; | |
941 | ||
5204bb68 | 942 | if (nla_put_u8(msg, DEVLINK_ATTR_RELOAD_STATS_LIMIT, limit) || |
a254c264 MS |
943 | nla_put_u32(msg, DEVLINK_ATTR_RELOAD_STATS_VALUE, value)) |
944 | goto nla_put_failure; | |
945 | nla_nest_end(msg, reload_stats_entry); | |
946 | return 0; | |
947 | ||
948 | nla_put_failure: | |
949 | nla_nest_cancel(msg, reload_stats_entry); | |
950 | return -EMSGSIZE; | |
951 | } | |
952 | ||
77069ba2 | 953 | static int devlink_reload_stats_put(struct sk_buff *msg, struct devlink *devlink, bool is_remote) |
a254c264 | 954 | { |
5204bb68 | 955 | struct nlattr *reload_stats_attr, *act_info, *act_stats; |
a254c264 MS |
956 | int i, j, stat_idx; |
957 | u32 value; | |
958 | ||
77069ba2 MS |
959 | if (!is_remote) |
960 | reload_stats_attr = nla_nest_start(msg, DEVLINK_ATTR_RELOAD_STATS); | |
961 | else | |
962 | reload_stats_attr = nla_nest_start(msg, DEVLINK_ATTR_REMOTE_RELOAD_STATS); | |
a254c264 MS |
963 | |
964 | if (!reload_stats_attr) | |
965 | return -EMSGSIZE; | |
966 | ||
5204bb68 MS |
967 | for (i = 0; i <= DEVLINK_RELOAD_ACTION_MAX; i++) { |
968 | if ((!is_remote && | |
969 | !devlink_reload_action_is_supported(devlink, i)) || | |
970 | i == DEVLINK_RELOAD_ACTION_UNSPEC) | |
a254c264 | 971 | continue; |
5204bb68 MS |
972 | act_info = nla_nest_start(msg, DEVLINK_ATTR_RELOAD_ACTION_INFO); |
973 | if (!act_info) | |
974 | goto nla_put_failure; | |
975 | ||
976 | if (nla_put_u8(msg, DEVLINK_ATTR_RELOAD_ACTION, i)) | |
977 | goto action_info_nest_cancel; | |
978 | act_stats = nla_nest_start(msg, DEVLINK_ATTR_RELOAD_ACTION_STATS); | |
979 | if (!act_stats) | |
980 | goto action_info_nest_cancel; | |
981 | ||
982 | for (j = 0; j <= DEVLINK_RELOAD_LIMIT_MAX; j++) { | |
983 | /* Remote stats are shown even if not locally supported. | |
984 | * Stats of actions with unspecified limit are shown | |
985 | * though drivers don't need to register unspecified | |
986 | * limit. | |
987 | */ | |
988 | if ((!is_remote && j != DEVLINK_RELOAD_LIMIT_UNSPEC && | |
989 | !devlink_reload_limit_is_supported(devlink, j)) || | |
a254c264 MS |
990 | devlink_reload_combination_is_invalid(i, j)) |
991 | continue; | |
992 | ||
993 | stat_idx = j * __DEVLINK_RELOAD_ACTION_MAX + i; | |
77069ba2 MS |
994 | if (!is_remote) |
995 | value = devlink->stats.reload_stats[stat_idx]; | |
996 | else | |
997 | value = devlink->stats.remote_reload_stats[stat_idx]; | |
5204bb68 MS |
998 | if (devlink_reload_stat_put(msg, j, value)) |
999 | goto action_stats_nest_cancel; | |
a254c264 | 1000 | } |
5204bb68 MS |
1001 | nla_nest_end(msg, act_stats); |
1002 | nla_nest_end(msg, act_info); | |
a254c264 MS |
1003 | } |
1004 | nla_nest_end(msg, reload_stats_attr); | |
1005 | return 0; | |
1006 | ||
5204bb68 MS |
1007 | action_stats_nest_cancel: |
1008 | nla_nest_cancel(msg, act_stats); | |
1009 | action_info_nest_cancel: | |
1010 | nla_nest_cancel(msg, act_info); | |
a254c264 MS |
1011 | nla_put_failure: |
1012 | nla_nest_cancel(msg, reload_stats_attr); | |
1013 | return -EMSGSIZE; | |
1014 | } | |
1015 | ||
bfcd3a46 JP |
1016 | static int devlink_nl_fill(struct sk_buff *msg, struct devlink *devlink, |
1017 | enum devlink_command cmd, u32 portid, | |
1018 | u32 seq, int flags) | |
1019 | { | |
a254c264 | 1020 | struct nlattr *dev_stats; |
bfcd3a46 JP |
1021 | void *hdr; |
1022 | ||
1023 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
1024 | if (!hdr) | |
1025 | return -EMSGSIZE; | |
1026 | ||
1027 | if (devlink_nl_put_handle(msg, devlink)) | |
1028 | goto nla_put_failure; | |
2670ac26 JP |
1029 | if (nla_put_u8(msg, DEVLINK_ATTR_RELOAD_FAILED, devlink->reload_failed)) |
1030 | goto nla_put_failure; | |
bfcd3a46 | 1031 | |
a254c264 MS |
1032 | dev_stats = nla_nest_start(msg, DEVLINK_ATTR_DEV_STATS); |
1033 | if (!dev_stats) | |
1034 | goto nla_put_failure; | |
1035 | ||
77069ba2 MS |
1036 | if (devlink_reload_stats_put(msg, devlink, false)) |
1037 | goto dev_stats_nest_cancel; | |
1038 | if (devlink_reload_stats_put(msg, devlink, true)) | |
a254c264 MS |
1039 | goto dev_stats_nest_cancel; |
1040 | ||
1041 | nla_nest_end(msg, dev_stats); | |
bfcd3a46 JP |
1042 | genlmsg_end(msg, hdr); |
1043 | return 0; | |
1044 | ||
a254c264 MS |
1045 | dev_stats_nest_cancel: |
1046 | nla_nest_cancel(msg, dev_stats); | |
bfcd3a46 JP |
1047 | nla_put_failure: |
1048 | genlmsg_cancel(msg, hdr); | |
1049 | return -EMSGSIZE; | |
1050 | } | |
1051 | ||
1052 | static void devlink_notify(struct devlink *devlink, enum devlink_command cmd) | |
1053 | { | |
1054 | struct sk_buff *msg; | |
1055 | int err; | |
1056 | ||
1057 | WARN_ON(cmd != DEVLINK_CMD_NEW && cmd != DEVLINK_CMD_DEL); | |
cf530217 | 1058 | WARN_ON(!xa_get_mark(&devlinks, devlink->index, DEVLINK_REGISTERED)); |
bfcd3a46 JP |
1059 | |
1060 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
1061 | if (!msg) | |
1062 | return; | |
1063 | ||
1064 | err = devlink_nl_fill(msg, devlink, cmd, 0, 0, 0); | |
1065 | if (err) { | |
1066 | nlmsg_free(msg); | |
1067 | return; | |
1068 | } | |
1069 | ||
1070 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), | |
1071 | msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
1072 | } | |
1073 | ||
b9ffcbaf JP |
1074 | static int devlink_nl_port_attrs_put(struct sk_buff *msg, |
1075 | struct devlink_port *devlink_port) | |
1076 | { | |
1077 | struct devlink_port_attrs *attrs = &devlink_port->attrs; | |
1078 | ||
10a429ba | 1079 | if (!devlink_port->attrs_set) |
b9ffcbaf | 1080 | return 0; |
a21cf0a8 DR |
1081 | if (attrs->lanes) { |
1082 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_LANES, attrs->lanes)) | |
1083 | return -EMSGSIZE; | |
1084 | } | |
a0f49b54 DR |
1085 | if (nla_put_u8(msg, DEVLINK_ATTR_PORT_SPLITTABLE, attrs->splittable)) |
1086 | return -EMSGSIZE; | |
5ec1380a JP |
1087 | if (nla_put_u16(msg, DEVLINK_ATTR_PORT_FLAVOUR, attrs->flavour)) |
1088 | return -EMSGSIZE; | |
58b6be41 PP |
1089 | switch (devlink_port->attrs.flavour) { |
1090 | case DEVLINK_PORT_FLAVOUR_PCI_PF: | |
3a2d9588 PP |
1091 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_CONTROLLER_NUMBER, |
1092 | attrs->pci_pf.controller) || | |
1093 | nla_put_u16(msg, DEVLINK_ATTR_PORT_PCI_PF_NUMBER, attrs->pci_pf.pf)) | |
98fd2d65 | 1094 | return -EMSGSIZE; |
05b595e9 PP |
1095 | if (nla_put_u8(msg, DEVLINK_ATTR_PORT_EXTERNAL, attrs->pci_pf.external)) |
1096 | return -EMSGSIZE; | |
58b6be41 PP |
1097 | break; |
1098 | case DEVLINK_PORT_FLAVOUR_PCI_VF: | |
3a2d9588 PP |
1099 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_CONTROLLER_NUMBER, |
1100 | attrs->pci_vf.controller) || | |
1101 | nla_put_u16(msg, DEVLINK_ATTR_PORT_PCI_PF_NUMBER, attrs->pci_vf.pf) || | |
1102 | nla_put_u16(msg, DEVLINK_ATTR_PORT_PCI_VF_NUMBER, attrs->pci_vf.vf)) | |
e41b6bf3 | 1103 | return -EMSGSIZE; |
05b595e9 PP |
1104 | if (nla_put_u8(msg, DEVLINK_ATTR_PORT_EXTERNAL, attrs->pci_vf.external)) |
1105 | return -EMSGSIZE; | |
58b6be41 | 1106 | break; |
b8288837 PP |
1107 | case DEVLINK_PORT_FLAVOUR_PCI_SF: |
1108 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_CONTROLLER_NUMBER, | |
1109 | attrs->pci_sf.controller) || | |
1110 | nla_put_u16(msg, DEVLINK_ATTR_PORT_PCI_PF_NUMBER, | |
1111 | attrs->pci_sf.pf) || | |
1112 | nla_put_u32(msg, DEVLINK_ATTR_PORT_PCI_SF_NUMBER, | |
1113 | attrs->pci_sf.sf)) | |
1114 | return -EMSGSIZE; | |
1115 | break; | |
58b6be41 PP |
1116 | case DEVLINK_PORT_FLAVOUR_PHYSICAL: |
1117 | case DEVLINK_PORT_FLAVOUR_CPU: | |
1118 | case DEVLINK_PORT_FLAVOUR_DSA: | |
1119 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_NUMBER, | |
1120 | attrs->phys.port_number)) | |
1121 | return -EMSGSIZE; | |
1122 | if (!attrs->split) | |
1123 | return 0; | |
1124 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_SPLIT_GROUP, | |
1125 | attrs->phys.port_number)) | |
1126 | return -EMSGSIZE; | |
1127 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_SPLIT_SUBPORT_NUMBER, | |
1128 | attrs->phys.split_subport_number)) | |
1129 | return -EMSGSIZE; | |
1130 | break; | |
1131 | default: | |
1132 | break; | |
98fd2d65 | 1133 | } |
b9ffcbaf JP |
1134 | return 0; |
1135 | } | |
1136 | ||
82564f6c LR |
1137 | static int devlink_port_fn_hw_addr_fill(const struct devlink_ops *ops, |
1138 | struct devlink_port *port, | |
1139 | struct sk_buff *msg, | |
1140 | struct netlink_ext_ack *extack, | |
1141 | bool *msg_updated) | |
1230d948 PP |
1142 | { |
1143 | u8 hw_addr[MAX_ADDR_LEN]; | |
1144 | int hw_addr_len; | |
1145 | int err; | |
1146 | ||
1147 | if (!ops->port_function_hw_addr_get) | |
1148 | return 0; | |
1149 | ||
82564f6c LR |
1150 | err = ops->port_function_hw_addr_get(port, hw_addr, &hw_addr_len, |
1151 | extack); | |
1230d948 PP |
1152 | if (err) { |
1153 | if (err == -EOPNOTSUPP) | |
1154 | return 0; | |
1155 | return err; | |
1156 | } | |
1157 | err = nla_put(msg, DEVLINK_PORT_FUNCTION_ATTR_HW_ADDR, hw_addr_len, hw_addr); | |
1158 | if (err) | |
1159 | return err; | |
1160 | *msg_updated = true; | |
1161 | return 0; | |
1162 | } | |
1163 | ||
4677efc4 | 1164 | static int devlink_nl_rate_fill(struct sk_buff *msg, |
4677efc4 | 1165 | struct devlink_rate *devlink_rate, |
7ca973dc LR |
1166 | enum devlink_command cmd, u32 portid, u32 seq, |
1167 | int flags, struct netlink_ext_ack *extack) | |
4677efc4 | 1168 | { |
7ca973dc | 1169 | struct devlink *devlink = devlink_rate->devlink; |
4677efc4 DL |
1170 | void *hdr; |
1171 | ||
1172 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
1173 | if (!hdr) | |
1174 | return -EMSGSIZE; | |
1175 | ||
1176 | if (devlink_nl_put_handle(msg, devlink)) | |
1177 | goto nla_put_failure; | |
1178 | ||
1179 | if (nla_put_u16(msg, DEVLINK_ATTR_RATE_TYPE, devlink_rate->type)) | |
1180 | goto nla_put_failure; | |
1181 | ||
1182 | if (devlink_rate_is_leaf(devlink_rate)) { | |
1183 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, | |
1184 | devlink_rate->devlink_port->index)) | |
1185 | goto nla_put_failure; | |
a8ecb93e DL |
1186 | } else if (devlink_rate_is_node(devlink_rate)) { |
1187 | if (nla_put_string(msg, DEVLINK_ATTR_RATE_NODE_NAME, | |
1188 | devlink_rate->name)) | |
1189 | goto nla_put_failure; | |
4677efc4 DL |
1190 | } |
1191 | ||
1897db2e DL |
1192 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_RATE_TX_SHARE, |
1193 | devlink_rate->tx_share, DEVLINK_ATTR_PAD)) | |
1194 | goto nla_put_failure; | |
1195 | ||
1196 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_RATE_TX_MAX, | |
1197 | devlink_rate->tx_max, DEVLINK_ATTR_PAD)) | |
1198 | goto nla_put_failure; | |
1199 | ||
d7555984 DL |
1200 | if (devlink_rate->parent) |
1201 | if (nla_put_string(msg, DEVLINK_ATTR_RATE_PARENT_NODE_NAME, | |
1202 | devlink_rate->parent->name)) | |
1203 | goto nla_put_failure; | |
1204 | ||
4677efc4 DL |
1205 | genlmsg_end(msg, hdr); |
1206 | return 0; | |
1207 | ||
1208 | nla_put_failure: | |
1209 | genlmsg_cancel(msg, hdr); | |
1210 | return -EMSGSIZE; | |
1211 | } | |
1212 | ||
a556dded PP |
1213 | static bool |
1214 | devlink_port_fn_state_valid(enum devlink_port_fn_state state) | |
1215 | { | |
1216 | return state == DEVLINK_PORT_FN_STATE_INACTIVE || | |
1217 | state == DEVLINK_PORT_FN_STATE_ACTIVE; | |
1218 | } | |
1219 | ||
1220 | static bool | |
1221 | devlink_port_fn_opstate_valid(enum devlink_port_fn_opstate opstate) | |
1222 | { | |
1223 | return opstate == DEVLINK_PORT_FN_OPSTATE_DETACHED || | |
1224 | opstate == DEVLINK_PORT_FN_OPSTATE_ATTACHED; | |
1225 | } | |
1226 | ||
82564f6c LR |
1227 | static int devlink_port_fn_state_fill(const struct devlink_ops *ops, |
1228 | struct devlink_port *port, | |
1229 | struct sk_buff *msg, | |
1230 | struct netlink_ext_ack *extack, | |
1231 | bool *msg_updated) | |
a556dded PP |
1232 | { |
1233 | enum devlink_port_fn_opstate opstate; | |
1234 | enum devlink_port_fn_state state; | |
1235 | int err; | |
1236 | ||
1237 | if (!ops->port_fn_state_get) | |
1238 | return 0; | |
1239 | ||
82564f6c | 1240 | err = ops->port_fn_state_get(port, &state, &opstate, extack); |
a556dded PP |
1241 | if (err) { |
1242 | if (err == -EOPNOTSUPP) | |
1243 | return 0; | |
1244 | return err; | |
1245 | } | |
1246 | if (!devlink_port_fn_state_valid(state)) { | |
1247 | WARN_ON_ONCE(1); | |
1248 | NL_SET_ERR_MSG_MOD(extack, "Invalid state read from driver"); | |
1249 | return -EINVAL; | |
1250 | } | |
1251 | if (!devlink_port_fn_opstate_valid(opstate)) { | |
1252 | WARN_ON_ONCE(1); | |
1253 | NL_SET_ERR_MSG_MOD(extack, | |
1254 | "Invalid operational state read from driver"); | |
1255 | return -EINVAL; | |
1256 | } | |
1257 | if (nla_put_u8(msg, DEVLINK_PORT_FN_ATTR_STATE, state) || | |
1258 | nla_put_u8(msg, DEVLINK_PORT_FN_ATTR_OPSTATE, opstate)) | |
1259 | return -EMSGSIZE; | |
1260 | *msg_updated = true; | |
1261 | return 0; | |
1262 | } | |
1263 | ||
2a916ecc PP |
1264 | static int |
1265 | devlink_nl_port_function_attrs_put(struct sk_buff *msg, struct devlink_port *port, | |
1266 | struct netlink_ext_ack *extack) | |
1267 | { | |
2a916ecc PP |
1268 | const struct devlink_ops *ops; |
1269 | struct nlattr *function_attr; | |
1230d948 PP |
1270 | bool msg_updated = false; |
1271 | int err; | |
2a916ecc PP |
1272 | |
1273 | function_attr = nla_nest_start_noflag(msg, DEVLINK_ATTR_PORT_FUNCTION); | |
1274 | if (!function_attr) | |
1275 | return -EMSGSIZE; | |
1276 | ||
82564f6c LR |
1277 | ops = port->devlink->ops; |
1278 | err = devlink_port_fn_hw_addr_fill(ops, port, msg, extack, | |
1279 | &msg_updated); | |
a556dded PP |
1280 | if (err) |
1281 | goto out; | |
82564f6c | 1282 | err = devlink_port_fn_state_fill(ops, port, msg, extack, &msg_updated); |
2a916ecc | 1283 | out: |
1230d948 | 1284 | if (err || !msg_updated) |
2a916ecc PP |
1285 | nla_nest_cancel(msg, function_attr); |
1286 | else | |
1287 | nla_nest_end(msg, function_attr); | |
1288 | return err; | |
1289 | } | |
1290 | ||
7ca973dc | 1291 | static int devlink_nl_port_fill(struct sk_buff *msg, |
bfcd3a46 | 1292 | struct devlink_port *devlink_port, |
7ca973dc LR |
1293 | enum devlink_command cmd, u32 portid, u32 seq, |
1294 | int flags, struct netlink_ext_ack *extack) | |
bfcd3a46 | 1295 | { |
7ca973dc | 1296 | struct devlink *devlink = devlink_port->devlink; |
bfcd3a46 JP |
1297 | void *hdr; |
1298 | ||
1299 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
1300 | if (!hdr) | |
1301 | return -EMSGSIZE; | |
1302 | ||
1303 | if (devlink_nl_put_handle(msg, devlink)) | |
1304 | goto nla_put_failure; | |
1305 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, devlink_port->index)) | |
1306 | goto nla_put_failure; | |
b8f97554 | 1307 | |
b187c9b4 PP |
1308 | /* Hold rtnl lock while accessing port's netdev attributes. */ |
1309 | rtnl_lock(); | |
0f420b6c | 1310 | spin_lock_bh(&devlink_port->type_lock); |
bfcd3a46 | 1311 | if (nla_put_u16(msg, DEVLINK_ATTR_PORT_TYPE, devlink_port->type)) |
b8f97554 | 1312 | goto nla_put_failure_type_locked; |
bfcd3a46 JP |
1313 | if (devlink_port->desired_type != DEVLINK_PORT_TYPE_NOTSET && |
1314 | nla_put_u16(msg, DEVLINK_ATTR_PORT_DESIRED_TYPE, | |
1315 | devlink_port->desired_type)) | |
b8f97554 | 1316 | goto nla_put_failure_type_locked; |
bfcd3a46 | 1317 | if (devlink_port->type == DEVLINK_PORT_TYPE_ETH) { |
a7b43649 | 1318 | struct net *net = devlink_net(devlink_port->devlink); |
bfcd3a46 JP |
1319 | struct net_device *netdev = devlink_port->type_dev; |
1320 | ||
a7b43649 | 1321 | if (netdev && net_eq(net, dev_net(netdev)) && |
bfcd3a46 JP |
1322 | (nla_put_u32(msg, DEVLINK_ATTR_PORT_NETDEV_IFINDEX, |
1323 | netdev->ifindex) || | |
1324 | nla_put_string(msg, DEVLINK_ATTR_PORT_NETDEV_NAME, | |
1325 | netdev->name))) | |
b8f97554 | 1326 | goto nla_put_failure_type_locked; |
bfcd3a46 JP |
1327 | } |
1328 | if (devlink_port->type == DEVLINK_PORT_TYPE_IB) { | |
1329 | struct ib_device *ibdev = devlink_port->type_dev; | |
1330 | ||
1331 | if (ibdev && | |
1332 | nla_put_string(msg, DEVLINK_ATTR_PORT_IBDEV_NAME, | |
1333 | ibdev->name)) | |
b8f97554 | 1334 | goto nla_put_failure_type_locked; |
bfcd3a46 | 1335 | } |
0f420b6c | 1336 | spin_unlock_bh(&devlink_port->type_lock); |
b187c9b4 | 1337 | rtnl_unlock(); |
b9ffcbaf | 1338 | if (devlink_nl_port_attrs_put(msg, devlink_port)) |
bfcd3a46 | 1339 | goto nla_put_failure; |
2a916ecc PP |
1340 | if (devlink_nl_port_function_attrs_put(msg, devlink_port, extack)) |
1341 | goto nla_put_failure; | |
b8375859 JP |
1342 | if (devlink_port->linecard && |
1343 | nla_put_u32(msg, DEVLINK_ATTR_LINECARD_INDEX, | |
1344 | devlink_port->linecard->index)) | |
1345 | goto nla_put_failure; | |
bfcd3a46 JP |
1346 | |
1347 | genlmsg_end(msg, hdr); | |
1348 | return 0; | |
1349 | ||
b8f97554 | 1350 | nla_put_failure_type_locked: |
0f420b6c | 1351 | spin_unlock_bh(&devlink_port->type_lock); |
b187c9b4 | 1352 | rtnl_unlock(); |
bfcd3a46 JP |
1353 | nla_put_failure: |
1354 | genlmsg_cancel(msg, hdr); | |
1355 | return -EMSGSIZE; | |
1356 | } | |
1357 | ||
1358 | static void devlink_port_notify(struct devlink_port *devlink_port, | |
1359 | enum devlink_command cmd) | |
1360 | { | |
cf530217 | 1361 | struct devlink *devlink = devlink_port->devlink; |
bfcd3a46 JP |
1362 | struct sk_buff *msg; |
1363 | int err; | |
1364 | ||
bfcd3a46 JP |
1365 | WARN_ON(cmd != DEVLINK_CMD_PORT_NEW && cmd != DEVLINK_CMD_PORT_DEL); |
1366 | ||
cf530217 LR |
1367 | if (!xa_get_mark(&devlinks, devlink->index, DEVLINK_REGISTERED)) |
1368 | return; | |
1369 | ||
bfcd3a46 JP |
1370 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
1371 | if (!msg) | |
1372 | return; | |
1373 | ||
7ca973dc | 1374 | err = devlink_nl_port_fill(msg, devlink_port, cmd, 0, 0, 0, NULL); |
bfcd3a46 JP |
1375 | if (err) { |
1376 | nlmsg_free(msg); | |
1377 | return; | |
1378 | } | |
1379 | ||
cf530217 LR |
1380 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), msg, |
1381 | 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
bfcd3a46 JP |
1382 | } |
1383 | ||
4677efc4 DL |
1384 | static void devlink_rate_notify(struct devlink_rate *devlink_rate, |
1385 | enum devlink_command cmd) | |
1386 | { | |
cf530217 | 1387 | struct devlink *devlink = devlink_rate->devlink; |
4677efc4 DL |
1388 | struct sk_buff *msg; |
1389 | int err; | |
1390 | ||
7ca973dc | 1391 | WARN_ON(cmd != DEVLINK_CMD_RATE_NEW && cmd != DEVLINK_CMD_RATE_DEL); |
ef91abfb LR |
1392 | |
1393 | if (!xa_get_mark(&devlinks, devlink->index, DEVLINK_REGISTERED)) | |
1394 | return; | |
4677efc4 DL |
1395 | |
1396 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
1397 | if (!msg) | |
1398 | return; | |
1399 | ||
7ca973dc | 1400 | err = devlink_nl_rate_fill(msg, devlink_rate, cmd, 0, 0, 0, NULL); |
4677efc4 DL |
1401 | if (err) { |
1402 | nlmsg_free(msg); | |
1403 | return; | |
1404 | } | |
1405 | ||
cf530217 LR |
1406 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), msg, |
1407 | 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
4677efc4 DL |
1408 | } |
1409 | ||
1410 | static int devlink_nl_cmd_rate_get_dumpit(struct sk_buff *msg, | |
1411 | struct netlink_callback *cb) | |
1412 | { | |
1413 | struct devlink_rate *devlink_rate; | |
1414 | struct devlink *devlink; | |
1415 | int start = cb->args[0]; | |
11a861d7 | 1416 | unsigned long index; |
4677efc4 DL |
1417 | int idx = 0; |
1418 | int err = 0; | |
1419 | ||
1420 | mutex_lock(&devlink_mutex); | |
294c4f57 | 1421 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
7715023a | 1422 | devl_lock(devlink); |
4677efc4 DL |
1423 | list_for_each_entry(devlink_rate, &devlink->rate_list, list) { |
1424 | enum devlink_command cmd = DEVLINK_CMD_RATE_NEW; | |
1425 | u32 id = NETLINK_CB(cb->skb).portid; | |
1426 | ||
1427 | if (idx < start) { | |
1428 | idx++; | |
1429 | continue; | |
1430 | } | |
7ca973dc | 1431 | err = devlink_nl_rate_fill(msg, devlink_rate, cmd, id, |
4677efc4 DL |
1432 | cb->nlh->nlmsg_seq, |
1433 | NLM_F_MULTI, NULL); | |
1434 | if (err) { | |
7715023a | 1435 | devl_unlock(devlink); |
437ebfd9 | 1436 | devlink_put(devlink); |
4677efc4 DL |
1437 | goto out; |
1438 | } | |
1439 | idx++; | |
1440 | } | |
7715023a | 1441 | devl_unlock(devlink); |
437ebfd9 | 1442 | devlink_put(devlink); |
4677efc4 DL |
1443 | } |
1444 | out: | |
1445 | mutex_unlock(&devlink_mutex); | |
1446 | if (err != -EMSGSIZE) | |
1447 | return err; | |
1448 | ||
1449 | cb->args[0] = idx; | |
1450 | return msg->len; | |
1451 | } | |
1452 | ||
1453 | static int devlink_nl_cmd_rate_get_doit(struct sk_buff *skb, | |
1454 | struct genl_info *info) | |
1455 | { | |
1456 | struct devlink_rate *devlink_rate = info->user_ptr[1]; | |
4677efc4 DL |
1457 | struct sk_buff *msg; |
1458 | int err; | |
1459 | ||
1460 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
1461 | if (!msg) | |
1462 | return -ENOMEM; | |
1463 | ||
7ca973dc | 1464 | err = devlink_nl_rate_fill(msg, devlink_rate, DEVLINK_CMD_RATE_NEW, |
4677efc4 DL |
1465 | info->snd_portid, info->snd_seq, 0, |
1466 | info->extack); | |
1467 | if (err) { | |
1468 | nlmsg_free(msg); | |
1469 | return err; | |
1470 | } | |
1471 | ||
1472 | return genlmsg_reply(msg, info); | |
1473 | } | |
1474 | ||
d7555984 DL |
1475 | static bool |
1476 | devlink_rate_is_parent_node(struct devlink_rate *devlink_rate, | |
1477 | struct devlink_rate *parent) | |
1478 | { | |
1479 | while (parent) { | |
1480 | if (parent == devlink_rate) | |
1481 | return true; | |
1482 | parent = parent->parent; | |
1483 | } | |
1484 | return false; | |
1485 | } | |
1486 | ||
bfcd3a46 JP |
1487 | static int devlink_nl_cmd_get_doit(struct sk_buff *skb, struct genl_info *info) |
1488 | { | |
1489 | struct devlink *devlink = info->user_ptr[0]; | |
1490 | struct sk_buff *msg; | |
1491 | int err; | |
1492 | ||
1493 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
1494 | if (!msg) | |
1495 | return -ENOMEM; | |
1496 | ||
1497 | err = devlink_nl_fill(msg, devlink, DEVLINK_CMD_NEW, | |
1498 | info->snd_portid, info->snd_seq, 0); | |
1499 | if (err) { | |
1500 | nlmsg_free(msg); | |
1501 | return err; | |
1502 | } | |
1503 | ||
1504 | return genlmsg_reply(msg, info); | |
1505 | } | |
1506 | ||
1507 | static int devlink_nl_cmd_get_dumpit(struct sk_buff *msg, | |
1508 | struct netlink_callback *cb) | |
1509 | { | |
1510 | struct devlink *devlink; | |
1511 | int start = cb->args[0]; | |
11a861d7 | 1512 | unsigned long index; |
bfcd3a46 JP |
1513 | int idx = 0; |
1514 | int err; | |
1515 | ||
1516 | mutex_lock(&devlink_mutex); | |
294c4f57 | 1517 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
bfcd3a46 JP |
1518 | if (idx < start) { |
1519 | idx++; | |
437ebfd9 | 1520 | devlink_put(devlink); |
bfcd3a46 JP |
1521 | continue; |
1522 | } | |
437ebfd9 | 1523 | |
bfcd3a46 JP |
1524 | err = devlink_nl_fill(msg, devlink, DEVLINK_CMD_NEW, |
1525 | NETLINK_CB(cb->skb).portid, | |
1526 | cb->nlh->nlmsg_seq, NLM_F_MULTI); | |
437ebfd9 | 1527 | devlink_put(devlink); |
bfcd3a46 JP |
1528 | if (err) |
1529 | goto out; | |
1530 | idx++; | |
1531 | } | |
1532 | out: | |
1533 | mutex_unlock(&devlink_mutex); | |
1534 | ||
1535 | cb->args[0] = idx; | |
1536 | return msg->len; | |
1537 | } | |
1538 | ||
1539 | static int devlink_nl_cmd_port_get_doit(struct sk_buff *skb, | |
1540 | struct genl_info *info) | |
1541 | { | |
637989b5 | 1542 | struct devlink_port *devlink_port = info->user_ptr[1]; |
bfcd3a46 JP |
1543 | struct sk_buff *msg; |
1544 | int err; | |
1545 | ||
1546 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
1547 | if (!msg) | |
1548 | return -ENOMEM; | |
1549 | ||
7ca973dc | 1550 | err = devlink_nl_port_fill(msg, devlink_port, DEVLINK_CMD_PORT_NEW, |
a829eb0d PP |
1551 | info->snd_portid, info->snd_seq, 0, |
1552 | info->extack); | |
bfcd3a46 JP |
1553 | if (err) { |
1554 | nlmsg_free(msg); | |
1555 | return err; | |
1556 | } | |
1557 | ||
1558 | return genlmsg_reply(msg, info); | |
1559 | } | |
1560 | ||
1561 | static int devlink_nl_cmd_port_get_dumpit(struct sk_buff *msg, | |
1562 | struct netlink_callback *cb) | |
1563 | { | |
1564 | struct devlink *devlink; | |
1565 | struct devlink_port *devlink_port; | |
1566 | int start = cb->args[0]; | |
11a861d7 | 1567 | unsigned long index; |
bfcd3a46 JP |
1568 | int idx = 0; |
1569 | int err; | |
1570 | ||
1571 | mutex_lock(&devlink_mutex); | |
294c4f57 | 1572 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
7715023a | 1573 | devl_lock(devlink); |
bfcd3a46 JP |
1574 | list_for_each_entry(devlink_port, &devlink->port_list, list) { |
1575 | if (idx < start) { | |
1576 | idx++; | |
1577 | continue; | |
1578 | } | |
7ca973dc | 1579 | err = devlink_nl_port_fill(msg, devlink_port, |
bfcd3a46 JP |
1580 | DEVLINK_CMD_NEW, |
1581 | NETLINK_CB(cb->skb).portid, | |
1582 | cb->nlh->nlmsg_seq, | |
7ca973dc | 1583 | NLM_F_MULTI, cb->extack); |
2406e7e5 | 1584 | if (err) { |
7715023a | 1585 | devl_unlock(devlink); |
437ebfd9 | 1586 | devlink_put(devlink); |
bfcd3a46 | 1587 | goto out; |
2406e7e5 | 1588 | } |
bfcd3a46 JP |
1589 | idx++; |
1590 | } | |
7715023a | 1591 | devl_unlock(devlink); |
437ebfd9 | 1592 | devlink_put(devlink); |
bfcd3a46 JP |
1593 | } |
1594 | out: | |
bfcd3a46 JP |
1595 | mutex_unlock(&devlink_mutex); |
1596 | ||
1597 | cb->args[0] = idx; | |
1598 | return msg->len; | |
1599 | } | |
1600 | ||
82564f6c | 1601 | static int devlink_port_type_set(struct devlink_port *devlink_port, |
bfcd3a46 JP |
1602 | enum devlink_port_type port_type) |
1603 | ||
1604 | { | |
1605 | int err; | |
1606 | ||
2a2b6e36 | 1607 | if (!devlink_port->devlink->ops->port_type_set) |
82564f6c LR |
1608 | return -EOPNOTSUPP; |
1609 | ||
1610 | if (port_type == devlink_port->type) | |
bfcd3a46 | 1611 | return 0; |
82564f6c LR |
1612 | |
1613 | err = devlink_port->devlink->ops->port_type_set(devlink_port, | |
1614 | port_type); | |
1615 | if (err) | |
1616 | return err; | |
1617 | ||
1618 | devlink_port->desired_type = port_type; | |
1619 | devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_NEW); | |
1620 | return 0; | |
bfcd3a46 JP |
1621 | } |
1622 | ||
82564f6c LR |
1623 | static int devlink_port_function_hw_addr_set(struct devlink_port *port, |
1624 | const struct nlattr *attr, | |
1625 | struct netlink_ext_ack *extack) | |
a1e8ae90 | 1626 | { |
82564f6c | 1627 | const struct devlink_ops *ops = port->devlink->ops; |
a1e8ae90 PP |
1628 | const u8 *hw_addr; |
1629 | int hw_addr_len; | |
a1e8ae90 PP |
1630 | |
1631 | hw_addr = nla_data(attr); | |
1632 | hw_addr_len = nla_len(attr); | |
1633 | if (hw_addr_len > MAX_ADDR_LEN) { | |
1634 | NL_SET_ERR_MSG_MOD(extack, "Port function hardware address too long"); | |
1635 | return -EINVAL; | |
1636 | } | |
1637 | if (port->type == DEVLINK_PORT_TYPE_ETH) { | |
1638 | if (hw_addr_len != ETH_ALEN) { | |
1639 | NL_SET_ERR_MSG_MOD(extack, "Address must be 6 bytes for Ethernet device"); | |
1640 | return -EINVAL; | |
1641 | } | |
1642 | if (!is_unicast_ether_addr(hw_addr)) { | |
1643 | NL_SET_ERR_MSG_MOD(extack, "Non-unicast hardware address unsupported"); | |
1644 | return -EINVAL; | |
1645 | } | |
1646 | } | |
1647 | ||
a1e8ae90 PP |
1648 | if (!ops->port_function_hw_addr_set) { |
1649 | NL_SET_ERR_MSG_MOD(extack, "Port doesn't support function attributes"); | |
1650 | return -EOPNOTSUPP; | |
1651 | } | |
1652 | ||
82564f6c LR |
1653 | return ops->port_function_hw_addr_set(port, hw_addr, hw_addr_len, |
1654 | extack); | |
a1e8ae90 | 1655 | } |
a1e8ae90 | 1656 | |
82564f6c | 1657 | static int devlink_port_fn_state_set(struct devlink_port *port, |
a556dded PP |
1658 | const struct nlattr *attr, |
1659 | struct netlink_ext_ack *extack) | |
1660 | { | |
1661 | enum devlink_port_fn_state state; | |
1662 | const struct devlink_ops *ops; | |
1663 | ||
1664 | state = nla_get_u8(attr); | |
82564f6c | 1665 | ops = port->devlink->ops; |
a556dded PP |
1666 | if (!ops->port_fn_state_set) { |
1667 | NL_SET_ERR_MSG_MOD(extack, | |
1668 | "Function does not support state setting"); | |
1669 | return -EOPNOTSUPP; | |
1670 | } | |
82564f6c | 1671 | return ops->port_fn_state_set(port, state, extack); |
a1e8ae90 PP |
1672 | } |
1673 | ||
82564f6c LR |
1674 | static int devlink_port_function_set(struct devlink_port *port, |
1675 | const struct nlattr *attr, | |
1676 | struct netlink_ext_ack *extack) | |
a1e8ae90 PP |
1677 | { |
1678 | struct nlattr *tb[DEVLINK_PORT_FUNCTION_ATTR_MAX + 1]; | |
1679 | int err; | |
1680 | ||
1681 | err = nla_parse_nested(tb, DEVLINK_PORT_FUNCTION_ATTR_MAX, attr, | |
1682 | devlink_function_nl_policy, extack); | |
1683 | if (err < 0) { | |
1684 | NL_SET_ERR_MSG_MOD(extack, "Fail to parse port function attributes"); | |
1685 | return err; | |
1686 | } | |
1687 | ||
1688 | attr = tb[DEVLINK_PORT_FUNCTION_ATTR_HW_ADDR]; | |
a556dded | 1689 | if (attr) { |
82564f6c | 1690 | err = devlink_port_function_hw_addr_set(port, attr, extack); |
a556dded PP |
1691 | if (err) |
1692 | return err; | |
1693 | } | |
1694 | /* Keep this as the last function attribute set, so that when | |
1695 | * multiple port function attributes are set along with state, | |
1696 | * Those can be applied first before activating the state. | |
1697 | */ | |
1698 | attr = tb[DEVLINK_PORT_FN_ATTR_STATE]; | |
1699 | if (attr) | |
82564f6c | 1700 | err = devlink_port_fn_state_set(port, attr, extack); |
a1e8ae90 | 1701 | |
1230d948 PP |
1702 | if (!err) |
1703 | devlink_port_notify(port, DEVLINK_CMD_PORT_NEW); | |
a1e8ae90 PP |
1704 | return err; |
1705 | } | |
1706 | ||
bfcd3a46 JP |
1707 | static int devlink_nl_cmd_port_set_doit(struct sk_buff *skb, |
1708 | struct genl_info *info) | |
1709 | { | |
637989b5 | 1710 | struct devlink_port *devlink_port = info->user_ptr[1]; |
bfcd3a46 JP |
1711 | int err; |
1712 | ||
1713 | if (info->attrs[DEVLINK_ATTR_PORT_TYPE]) { | |
1714 | enum devlink_port_type port_type; | |
1715 | ||
1716 | port_type = nla_get_u16(info->attrs[DEVLINK_ATTR_PORT_TYPE]); | |
82564f6c | 1717 | err = devlink_port_type_set(devlink_port, port_type); |
bfcd3a46 JP |
1718 | if (err) |
1719 | return err; | |
1720 | } | |
a1e8ae90 PP |
1721 | |
1722 | if (info->attrs[DEVLINK_ATTR_PORT_FUNCTION]) { | |
1723 | struct nlattr *attr = info->attrs[DEVLINK_ATTR_PORT_FUNCTION]; | |
1724 | struct netlink_ext_ack *extack = info->extack; | |
1725 | ||
82564f6c | 1726 | err = devlink_port_function_set(devlink_port, attr, extack); |
a1e8ae90 PP |
1727 | if (err) |
1728 | return err; | |
1729 | } | |
1730 | ||
bfcd3a46 JP |
1731 | return 0; |
1732 | } | |
1733 | ||
bfcd3a46 JP |
1734 | static int devlink_nl_cmd_port_split_doit(struct sk_buff *skb, |
1735 | struct genl_info *info) | |
1736 | { | |
706217c1 | 1737 | struct devlink_port *devlink_port = info->user_ptr[1]; |
bfcd3a46 | 1738 | struct devlink *devlink = info->user_ptr[0]; |
bfcd3a46 JP |
1739 | u32 count; |
1740 | ||
706217c1 | 1741 | if (!info->attrs[DEVLINK_ATTR_PORT_SPLIT_COUNT]) |
bfcd3a46 | 1742 | return -EINVAL; |
706217c1 JK |
1743 | if (!devlink->ops->port_split) |
1744 | return -EOPNOTSUPP; | |
bfcd3a46 | 1745 | |
bfcd3a46 | 1746 | count = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_SPLIT_COUNT]); |
82901ad1 | 1747 | |
82901ad1 DR |
1748 | if (!devlink_port->attrs.splittable) { |
1749 | /* Split ports cannot be split. */ | |
1750 | if (devlink_port->attrs.split) | |
1751 | NL_SET_ERR_MSG_MOD(info->extack, "Port cannot be split further"); | |
1752 | else | |
1753 | NL_SET_ERR_MSG_MOD(info->extack, "Port cannot be split"); | |
1754 | return -EINVAL; | |
1755 | } | |
1756 | ||
1757 | if (count < 2 || !is_power_of_2(count) || count > devlink_port->attrs.lanes) { | |
1758 | NL_SET_ERR_MSG_MOD(info->extack, "Invalid split count"); | |
1759 | return -EINVAL; | |
1760 | } | |
1761 | ||
706217c1 JK |
1762 | return devlink->ops->port_split(devlink, devlink_port, count, |
1763 | info->extack); | |
bfcd3a46 JP |
1764 | } |
1765 | ||
1766 | static int devlink_nl_cmd_port_unsplit_doit(struct sk_buff *skb, | |
1767 | struct genl_info *info) | |
1768 | { | |
706217c1 | 1769 | struct devlink_port *devlink_port = info->user_ptr[1]; |
bfcd3a46 | 1770 | struct devlink *devlink = info->user_ptr[0]; |
bfcd3a46 | 1771 | |
706217c1 JK |
1772 | if (!devlink->ops->port_unsplit) |
1773 | return -EOPNOTSUPP; | |
1774 | return devlink->ops->port_unsplit(devlink, devlink_port, info->extack); | |
bfcd3a46 JP |
1775 | } |
1776 | ||
ced92571 JP |
1777 | static int devlink_port_new_notify(struct devlink *devlink, |
1778 | unsigned int port_index, | |
1779 | struct genl_info *info) | |
cd76dcd6 PP |
1780 | { |
1781 | struct devlink_port *devlink_port; | |
1782 | struct sk_buff *msg; | |
1783 | int err; | |
1784 | ||
1785 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
1786 | if (!msg) | |
1787 | return -ENOMEM; | |
1788 | ||
f0680ef0 | 1789 | lockdep_assert_held(&devlink->lock); |
cd76dcd6 PP |
1790 | devlink_port = devlink_port_get_by_index(devlink, port_index); |
1791 | if (!devlink_port) { | |
1792 | err = -ENODEV; | |
1793 | goto out; | |
1794 | } | |
1795 | ||
7ca973dc LR |
1796 | err = devlink_nl_port_fill(msg, devlink_port, DEVLINK_CMD_NEW, |
1797 | info->snd_portid, info->snd_seq, 0, NULL); | |
cd76dcd6 PP |
1798 | if (err) |
1799 | goto out; | |
1800 | ||
a44c4511 | 1801 | return genlmsg_reply(msg, info); |
cd76dcd6 PP |
1802 | |
1803 | out: | |
cd76dcd6 PP |
1804 | nlmsg_free(msg); |
1805 | return err; | |
1806 | } | |
1807 | ||
1808 | static int devlink_nl_cmd_port_new_doit(struct sk_buff *skb, | |
1809 | struct genl_info *info) | |
1810 | { | |
1811 | struct netlink_ext_ack *extack = info->extack; | |
1812 | struct devlink_port_new_attrs new_attrs = {}; | |
1813 | struct devlink *devlink = info->user_ptr[0]; | |
1814 | unsigned int new_port_index; | |
1815 | int err; | |
1816 | ||
1817 | if (!devlink->ops->port_new || !devlink->ops->port_del) | |
1818 | return -EOPNOTSUPP; | |
1819 | ||
1820 | if (!info->attrs[DEVLINK_ATTR_PORT_FLAVOUR] || | |
1821 | !info->attrs[DEVLINK_ATTR_PORT_PCI_PF_NUMBER]) { | |
1822 | NL_SET_ERR_MSG_MOD(extack, "Port flavour or PCI PF are not specified"); | |
1823 | return -EINVAL; | |
1824 | } | |
1825 | new_attrs.flavour = nla_get_u16(info->attrs[DEVLINK_ATTR_PORT_FLAVOUR]); | |
1826 | new_attrs.pfnum = | |
1827 | nla_get_u16(info->attrs[DEVLINK_ATTR_PORT_PCI_PF_NUMBER]); | |
1828 | ||
1829 | if (info->attrs[DEVLINK_ATTR_PORT_INDEX]) { | |
1830 | /* Port index of the new port being created by driver. */ | |
1831 | new_attrs.port_index = | |
1832 | nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_INDEX]); | |
1833 | new_attrs.port_index_valid = true; | |
1834 | } | |
1835 | if (info->attrs[DEVLINK_ATTR_PORT_CONTROLLER_NUMBER]) { | |
1836 | new_attrs.controller = | |
1837 | nla_get_u16(info->attrs[DEVLINK_ATTR_PORT_CONTROLLER_NUMBER]); | |
1838 | new_attrs.controller_valid = true; | |
1839 | } | |
1840 | if (new_attrs.flavour == DEVLINK_PORT_FLAVOUR_PCI_SF && | |
1841 | info->attrs[DEVLINK_ATTR_PORT_PCI_SF_NUMBER]) { | |
1842 | new_attrs.sfnum = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_PCI_SF_NUMBER]); | |
1843 | new_attrs.sfnum_valid = true; | |
1844 | } | |
1845 | ||
1846 | err = devlink->ops->port_new(devlink, &new_attrs, extack, | |
1847 | &new_port_index); | |
1848 | if (err) | |
1849 | return err; | |
1850 | ||
ced92571 | 1851 | err = devlink_port_new_notify(devlink, new_port_index, info); |
cd76dcd6 PP |
1852 | if (err && err != -ENODEV) { |
1853 | /* Fail to send the response; destroy newly created port. */ | |
1854 | devlink->ops->port_del(devlink, new_port_index, extack); | |
1855 | } | |
1856 | return err; | |
1857 | } | |
1858 | ||
1859 | static int devlink_nl_cmd_port_del_doit(struct sk_buff *skb, | |
1860 | struct genl_info *info) | |
1861 | { | |
1862 | struct netlink_ext_ack *extack = info->extack; | |
1863 | struct devlink *devlink = info->user_ptr[0]; | |
1864 | unsigned int port_index; | |
1865 | ||
1866 | if (!devlink->ops->port_del) | |
1867 | return -EOPNOTSUPP; | |
1868 | ||
1869 | if (!info->attrs[DEVLINK_ATTR_PORT_INDEX]) { | |
1870 | NL_SET_ERR_MSG_MOD(extack, "Port index is not specified"); | |
1871 | return -EINVAL; | |
1872 | } | |
1873 | port_index = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_INDEX]); | |
1874 | ||
1875 | return devlink->ops->port_del(devlink, port_index, extack); | |
1876 | } | |
1877 | ||
d7555984 DL |
1878 | static int |
1879 | devlink_nl_rate_parent_node_set(struct devlink_rate *devlink_rate, | |
1880 | struct genl_info *info, | |
1881 | struct nlattr *nla_parent) | |
1882 | { | |
1883 | struct devlink *devlink = devlink_rate->devlink; | |
1884 | const char *parent_name = nla_data(nla_parent); | |
1885 | const struct devlink_ops *ops = devlink->ops; | |
1886 | size_t len = strlen(parent_name); | |
1887 | struct devlink_rate *parent; | |
1888 | int err = -EOPNOTSUPP; | |
1889 | ||
1890 | parent = devlink_rate->parent; | |
1891 | if (parent && len) { | |
1892 | NL_SET_ERR_MSG_MOD(info->extack, "Rate object already has parent."); | |
1893 | return -EBUSY; | |
1894 | } else if (parent && !len) { | |
1895 | if (devlink_rate_is_leaf(devlink_rate)) | |
1896 | err = ops->rate_leaf_parent_set(devlink_rate, NULL, | |
1897 | devlink_rate->priv, NULL, | |
1898 | info->extack); | |
1899 | else if (devlink_rate_is_node(devlink_rate)) | |
1900 | err = ops->rate_node_parent_set(devlink_rate, NULL, | |
1901 | devlink_rate->priv, NULL, | |
1902 | info->extack); | |
1903 | if (err) | |
1904 | return err; | |
1905 | ||
1906 | refcount_dec(&parent->refcnt); | |
1907 | devlink_rate->parent = NULL; | |
1908 | } else if (!parent && len) { | |
1909 | parent = devlink_rate_node_get_by_name(devlink, parent_name); | |
1910 | if (IS_ERR(parent)) | |
1911 | return -ENODEV; | |
1912 | ||
1913 | if (parent == devlink_rate) { | |
1914 | NL_SET_ERR_MSG_MOD(info->extack, "Parent to self is not allowed"); | |
1915 | return -EINVAL; | |
1916 | } | |
1917 | ||
1918 | if (devlink_rate_is_node(devlink_rate) && | |
1919 | devlink_rate_is_parent_node(devlink_rate, parent->parent)) { | |
1920 | NL_SET_ERR_MSG_MOD(info->extack, "Node is already a parent of parent node."); | |
1921 | return -EEXIST; | |
1922 | } | |
1923 | ||
1924 | if (devlink_rate_is_leaf(devlink_rate)) | |
1925 | err = ops->rate_leaf_parent_set(devlink_rate, parent, | |
1926 | devlink_rate->priv, parent->priv, | |
1927 | info->extack); | |
1928 | else if (devlink_rate_is_node(devlink_rate)) | |
1929 | err = ops->rate_node_parent_set(devlink_rate, parent, | |
1930 | devlink_rate->priv, parent->priv, | |
1931 | info->extack); | |
1932 | if (err) | |
1933 | return err; | |
1934 | ||
1935 | refcount_inc(&parent->refcnt); | |
1936 | devlink_rate->parent = parent; | |
1937 | } | |
1938 | ||
1939 | return 0; | |
1940 | } | |
1941 | ||
1897db2e DL |
1942 | static int devlink_nl_rate_set(struct devlink_rate *devlink_rate, |
1943 | const struct devlink_ops *ops, | |
1944 | struct genl_info *info) | |
1945 | { | |
d7555984 | 1946 | struct nlattr *nla_parent, **attrs = info->attrs; |
a8ecb93e | 1947 | int err = -EOPNOTSUPP; |
1897db2e | 1948 | u64 rate; |
1897db2e DL |
1949 | |
1950 | if (attrs[DEVLINK_ATTR_RATE_TX_SHARE]) { | |
1951 | rate = nla_get_u64(attrs[DEVLINK_ATTR_RATE_TX_SHARE]); | |
a8ecb93e DL |
1952 | if (devlink_rate_is_leaf(devlink_rate)) |
1953 | err = ops->rate_leaf_tx_share_set(devlink_rate, devlink_rate->priv, | |
1954 | rate, info->extack); | |
1955 | else if (devlink_rate_is_node(devlink_rate)) | |
1956 | err = ops->rate_node_tx_share_set(devlink_rate, devlink_rate->priv, | |
1957 | rate, info->extack); | |
1897db2e DL |
1958 | if (err) |
1959 | return err; | |
1960 | devlink_rate->tx_share = rate; | |
1961 | } | |
1962 | ||
1963 | if (attrs[DEVLINK_ATTR_RATE_TX_MAX]) { | |
1964 | rate = nla_get_u64(attrs[DEVLINK_ATTR_RATE_TX_MAX]); | |
a8ecb93e DL |
1965 | if (devlink_rate_is_leaf(devlink_rate)) |
1966 | err = ops->rate_leaf_tx_max_set(devlink_rate, devlink_rate->priv, | |
1967 | rate, info->extack); | |
1968 | else if (devlink_rate_is_node(devlink_rate)) | |
1969 | err = ops->rate_node_tx_max_set(devlink_rate, devlink_rate->priv, | |
1970 | rate, info->extack); | |
1897db2e DL |
1971 | if (err) |
1972 | return err; | |
1973 | devlink_rate->tx_max = rate; | |
1974 | } | |
1975 | ||
d7555984 DL |
1976 | nla_parent = attrs[DEVLINK_ATTR_RATE_PARENT_NODE_NAME]; |
1977 | if (nla_parent) { | |
1978 | err = devlink_nl_rate_parent_node_set(devlink_rate, info, | |
1979 | nla_parent); | |
1980 | if (err) | |
1981 | return err; | |
1982 | } | |
1983 | ||
1897db2e DL |
1984 | return 0; |
1985 | } | |
1986 | ||
1987 | static bool devlink_rate_set_ops_supported(const struct devlink_ops *ops, | |
1988 | struct genl_info *info, | |
1989 | enum devlink_rate_type type) | |
1990 | { | |
1991 | struct nlattr **attrs = info->attrs; | |
1992 | ||
1993 | if (type == DEVLINK_RATE_TYPE_LEAF) { | |
1994 | if (attrs[DEVLINK_ATTR_RATE_TX_SHARE] && !ops->rate_leaf_tx_share_set) { | |
1995 | NL_SET_ERR_MSG_MOD(info->extack, "TX share set isn't supported for the leafs"); | |
1996 | return false; | |
1997 | } | |
1998 | if (attrs[DEVLINK_ATTR_RATE_TX_MAX] && !ops->rate_leaf_tx_max_set) { | |
1999 | NL_SET_ERR_MSG_MOD(info->extack, "TX max set isn't supported for the leafs"); | |
2000 | return false; | |
2001 | } | |
d7555984 DL |
2002 | if (attrs[DEVLINK_ATTR_RATE_PARENT_NODE_NAME] && |
2003 | !ops->rate_leaf_parent_set) { | |
2004 | NL_SET_ERR_MSG_MOD(info->extack, "Parent set isn't supported for the leafs"); | |
2005 | return false; | |
2006 | } | |
a8ecb93e DL |
2007 | } else if (type == DEVLINK_RATE_TYPE_NODE) { |
2008 | if (attrs[DEVLINK_ATTR_RATE_TX_SHARE] && !ops->rate_node_tx_share_set) { | |
2009 | NL_SET_ERR_MSG_MOD(info->extack, "TX share set isn't supported for the nodes"); | |
2010 | return false; | |
2011 | } | |
2012 | if (attrs[DEVLINK_ATTR_RATE_TX_MAX] && !ops->rate_node_tx_max_set) { | |
2013 | NL_SET_ERR_MSG_MOD(info->extack, "TX max set isn't supported for the nodes"); | |
2014 | return false; | |
2015 | } | |
d7555984 DL |
2016 | if (attrs[DEVLINK_ATTR_RATE_PARENT_NODE_NAME] && |
2017 | !ops->rate_node_parent_set) { | |
2018 | NL_SET_ERR_MSG_MOD(info->extack, "Parent set isn't supported for the nodes"); | |
2019 | return false; | |
2020 | } | |
1897db2e | 2021 | } else { |
711d1dee | 2022 | WARN(1, "Unknown type of rate object"); |
1897db2e DL |
2023 | return false; |
2024 | } | |
2025 | ||
2026 | return true; | |
2027 | } | |
2028 | ||
2029 | static int devlink_nl_cmd_rate_set_doit(struct sk_buff *skb, | |
2030 | struct genl_info *info) | |
2031 | { | |
2032 | struct devlink_rate *devlink_rate = info->user_ptr[1]; | |
2033 | struct devlink *devlink = devlink_rate->devlink; | |
2034 | const struct devlink_ops *ops = devlink->ops; | |
2035 | int err; | |
2036 | ||
2037 | if (!ops || !devlink_rate_set_ops_supported(ops, info, devlink_rate->type)) | |
2038 | return -EOPNOTSUPP; | |
2039 | ||
2040 | err = devlink_nl_rate_set(devlink_rate, ops, info); | |
2041 | ||
2042 | if (!err) | |
2043 | devlink_rate_notify(devlink_rate, DEVLINK_CMD_RATE_NEW); | |
2044 | return err; | |
2045 | } | |
2046 | ||
a8ecb93e DL |
2047 | static int devlink_nl_cmd_rate_new_doit(struct sk_buff *skb, |
2048 | struct genl_info *info) | |
2049 | { | |
2050 | struct devlink *devlink = info->user_ptr[0]; | |
2051 | struct devlink_rate *rate_node; | |
2052 | const struct devlink_ops *ops; | |
2053 | int err; | |
2054 | ||
2055 | ops = devlink->ops; | |
2056 | if (!ops || !ops->rate_node_new || !ops->rate_node_del) { | |
2057 | NL_SET_ERR_MSG_MOD(info->extack, "Rate nodes aren't supported"); | |
2058 | return -EOPNOTSUPP; | |
2059 | } | |
2060 | ||
2061 | if (!devlink_rate_set_ops_supported(ops, info, DEVLINK_RATE_TYPE_NODE)) | |
2062 | return -EOPNOTSUPP; | |
2063 | ||
2064 | rate_node = devlink_rate_node_get_from_attrs(devlink, info->attrs); | |
2065 | if (!IS_ERR(rate_node)) | |
2066 | return -EEXIST; | |
2067 | else if (rate_node == ERR_PTR(-EINVAL)) | |
2068 | return -EINVAL; | |
2069 | ||
2070 | rate_node = kzalloc(sizeof(*rate_node), GFP_KERNEL); | |
2071 | if (!rate_node) | |
2072 | return -ENOMEM; | |
2073 | ||
2074 | rate_node->devlink = devlink; | |
2075 | rate_node->type = DEVLINK_RATE_TYPE_NODE; | |
2076 | rate_node->name = nla_strdup(info->attrs[DEVLINK_ATTR_RATE_NODE_NAME], GFP_KERNEL); | |
2077 | if (!rate_node->name) { | |
2078 | err = -ENOMEM; | |
2079 | goto err_strdup; | |
2080 | } | |
2081 | ||
2082 | err = ops->rate_node_new(rate_node, &rate_node->priv, info->extack); | |
2083 | if (err) | |
2084 | goto err_node_new; | |
2085 | ||
2086 | err = devlink_nl_rate_set(rate_node, ops, info); | |
2087 | if (err) | |
2088 | goto err_rate_set; | |
2089 | ||
d7555984 | 2090 | refcount_set(&rate_node->refcnt, 1); |
a8ecb93e DL |
2091 | list_add(&rate_node->list, &devlink->rate_list); |
2092 | devlink_rate_notify(rate_node, DEVLINK_CMD_RATE_NEW); | |
2093 | return 0; | |
2094 | ||
2095 | err_rate_set: | |
2096 | ops->rate_node_del(rate_node, rate_node->priv, info->extack); | |
2097 | err_node_new: | |
2098 | kfree(rate_node->name); | |
2099 | err_strdup: | |
2100 | kfree(rate_node); | |
2101 | return err; | |
2102 | } | |
2103 | ||
2104 | static int devlink_nl_cmd_rate_del_doit(struct sk_buff *skb, | |
2105 | struct genl_info *info) | |
2106 | { | |
2107 | struct devlink_rate *rate_node = info->user_ptr[1]; | |
2108 | struct devlink *devlink = rate_node->devlink; | |
2109 | const struct devlink_ops *ops = devlink->ops; | |
2110 | int err; | |
2111 | ||
d7555984 DL |
2112 | if (refcount_read(&rate_node->refcnt) > 1) { |
2113 | NL_SET_ERR_MSG_MOD(info->extack, "Node has children. Cannot delete node."); | |
2114 | return -EBUSY; | |
2115 | } | |
2116 | ||
a8ecb93e DL |
2117 | devlink_rate_notify(rate_node, DEVLINK_CMD_RATE_DEL); |
2118 | err = ops->rate_node_del(rate_node, rate_node->priv, info->extack); | |
d7555984 DL |
2119 | if (rate_node->parent) |
2120 | refcount_dec(&rate_node->parent->refcnt); | |
a8ecb93e DL |
2121 | list_del(&rate_node->list); |
2122 | kfree(rate_node->name); | |
2123 | kfree(rate_node); | |
2124 | return err; | |
2125 | } | |
2126 | ||
fcdc8ce2 JP |
2127 | struct devlink_linecard_type { |
2128 | const char *type; | |
2129 | const void *priv; | |
2130 | }; | |
2131 | ||
c246f9b5 JP |
2132 | static int devlink_nl_linecard_fill(struct sk_buff *msg, |
2133 | struct devlink *devlink, | |
2134 | struct devlink_linecard *linecard, | |
2135 | enum devlink_command cmd, u32 portid, | |
2136 | u32 seq, int flags, | |
2137 | struct netlink_ext_ack *extack) | |
2138 | { | |
fcdc8ce2 JP |
2139 | struct devlink_linecard_type *linecard_type; |
2140 | struct nlattr *attr; | |
c246f9b5 | 2141 | void *hdr; |
fcdc8ce2 | 2142 | int i; |
c246f9b5 JP |
2143 | |
2144 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
2145 | if (!hdr) | |
2146 | return -EMSGSIZE; | |
2147 | ||
2148 | if (devlink_nl_put_handle(msg, devlink)) | |
2149 | goto nla_put_failure; | |
2150 | if (nla_put_u32(msg, DEVLINK_ATTR_LINECARD_INDEX, linecard->index)) | |
2151 | goto nla_put_failure; | |
fcdc8ce2 JP |
2152 | if (nla_put_u8(msg, DEVLINK_ATTR_LINECARD_STATE, linecard->state)) |
2153 | goto nla_put_failure; | |
2154 | if (linecard->type && | |
2155 | nla_put_string(msg, DEVLINK_ATTR_LINECARD_TYPE, linecard->type)) | |
2156 | goto nla_put_failure; | |
2157 | ||
2158 | if (linecard->types_count) { | |
2159 | attr = nla_nest_start(msg, | |
2160 | DEVLINK_ATTR_LINECARD_SUPPORTED_TYPES); | |
2161 | if (!attr) | |
2162 | goto nla_put_failure; | |
2163 | for (i = 0; i < linecard->types_count; i++) { | |
2164 | linecard_type = &linecard->types[i]; | |
2165 | if (nla_put_string(msg, DEVLINK_ATTR_LINECARD_TYPE, | |
2166 | linecard_type->type)) { | |
2167 | nla_nest_cancel(msg, attr); | |
2168 | goto nla_put_failure; | |
2169 | } | |
2170 | } | |
2171 | nla_nest_end(msg, attr); | |
2172 | } | |
c246f9b5 | 2173 | |
7b2d9a1a JP |
2174 | if (linecard->nested_devlink && |
2175 | devlink_nl_put_nested_handle(msg, linecard->nested_devlink)) | |
2176 | goto nla_put_failure; | |
2177 | ||
c246f9b5 JP |
2178 | genlmsg_end(msg, hdr); |
2179 | return 0; | |
2180 | ||
2181 | nla_put_failure: | |
2182 | genlmsg_cancel(msg, hdr); | |
2183 | return -EMSGSIZE; | |
2184 | } | |
2185 | ||
2186 | static void devlink_linecard_notify(struct devlink_linecard *linecard, | |
2187 | enum devlink_command cmd) | |
2188 | { | |
2189 | struct devlink *devlink = linecard->devlink; | |
2190 | struct sk_buff *msg; | |
2191 | int err; | |
2192 | ||
2193 | WARN_ON(cmd != DEVLINK_CMD_LINECARD_NEW && | |
2194 | cmd != DEVLINK_CMD_LINECARD_DEL); | |
2195 | ||
2196 | if (!xa_get_mark(&devlinks, devlink->index, DEVLINK_REGISTERED)) | |
2197 | return; | |
2198 | ||
2199 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
2200 | if (!msg) | |
2201 | return; | |
2202 | ||
2203 | err = devlink_nl_linecard_fill(msg, devlink, linecard, cmd, 0, 0, 0, | |
2204 | NULL); | |
2205 | if (err) { | |
2206 | nlmsg_free(msg); | |
2207 | return; | |
2208 | } | |
2209 | ||
2210 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), | |
2211 | msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
2212 | } | |
2213 | ||
2214 | static int devlink_nl_cmd_linecard_get_doit(struct sk_buff *skb, | |
2215 | struct genl_info *info) | |
2216 | { | |
2217 | struct devlink_linecard *linecard = info->user_ptr[1]; | |
2218 | struct devlink *devlink = linecard->devlink; | |
2219 | struct sk_buff *msg; | |
2220 | int err; | |
2221 | ||
2222 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
2223 | if (!msg) | |
2224 | return -ENOMEM; | |
2225 | ||
fcdc8ce2 | 2226 | mutex_lock(&linecard->state_lock); |
c246f9b5 JP |
2227 | err = devlink_nl_linecard_fill(msg, devlink, linecard, |
2228 | DEVLINK_CMD_LINECARD_NEW, | |
2229 | info->snd_portid, info->snd_seq, 0, | |
2230 | info->extack); | |
fcdc8ce2 | 2231 | mutex_unlock(&linecard->state_lock); |
c246f9b5 JP |
2232 | if (err) { |
2233 | nlmsg_free(msg); | |
2234 | return err; | |
2235 | } | |
2236 | ||
2237 | return genlmsg_reply(msg, info); | |
2238 | } | |
2239 | ||
2240 | static int devlink_nl_cmd_linecard_get_dumpit(struct sk_buff *msg, | |
2241 | struct netlink_callback *cb) | |
2242 | { | |
2243 | struct devlink_linecard *linecard; | |
2244 | struct devlink *devlink; | |
2245 | int start = cb->args[0]; | |
2246 | unsigned long index; | |
2247 | int idx = 0; | |
2248 | int err; | |
2249 | ||
2250 | mutex_lock(&devlink_mutex); | |
294c4f57 | 2251 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
c246f9b5 JP |
2252 | mutex_lock(&devlink->linecards_lock); |
2253 | list_for_each_entry(linecard, &devlink->linecard_list, list) { | |
2254 | if (idx < start) { | |
2255 | idx++; | |
2256 | continue; | |
2257 | } | |
fcdc8ce2 | 2258 | mutex_lock(&linecard->state_lock); |
c246f9b5 JP |
2259 | err = devlink_nl_linecard_fill(msg, devlink, linecard, |
2260 | DEVLINK_CMD_LINECARD_NEW, | |
2261 | NETLINK_CB(cb->skb).portid, | |
2262 | cb->nlh->nlmsg_seq, | |
2263 | NLM_F_MULTI, | |
2264 | cb->extack); | |
fcdc8ce2 | 2265 | mutex_unlock(&linecard->state_lock); |
c246f9b5 JP |
2266 | if (err) { |
2267 | mutex_unlock(&devlink->linecards_lock); | |
2268 | devlink_put(devlink); | |
2269 | goto out; | |
2270 | } | |
2271 | idx++; | |
2272 | } | |
2273 | mutex_unlock(&devlink->linecards_lock); | |
c246f9b5 JP |
2274 | devlink_put(devlink); |
2275 | } | |
2276 | out: | |
2277 | mutex_unlock(&devlink_mutex); | |
2278 | ||
2279 | cb->args[0] = idx; | |
2280 | return msg->len; | |
2281 | } | |
2282 | ||
fcdc8ce2 JP |
2283 | static struct devlink_linecard_type * |
2284 | devlink_linecard_type_lookup(struct devlink_linecard *linecard, | |
2285 | const char *type) | |
2286 | { | |
2287 | struct devlink_linecard_type *linecard_type; | |
2288 | int i; | |
2289 | ||
2290 | for (i = 0; i < linecard->types_count; i++) { | |
2291 | linecard_type = &linecard->types[i]; | |
2292 | if (!strcmp(type, linecard_type->type)) | |
2293 | return linecard_type; | |
2294 | } | |
2295 | return NULL; | |
2296 | } | |
2297 | ||
2298 | static int devlink_linecard_type_set(struct devlink_linecard *linecard, | |
2299 | const char *type, | |
2300 | struct netlink_ext_ack *extack) | |
2301 | { | |
2302 | const struct devlink_linecard_ops *ops = linecard->ops; | |
2303 | struct devlink_linecard_type *linecard_type; | |
2304 | int err; | |
2305 | ||
2306 | mutex_lock(&linecard->state_lock); | |
2307 | if (linecard->state == DEVLINK_LINECARD_STATE_PROVISIONING) { | |
2308 | NL_SET_ERR_MSG_MOD(extack, "Line card is currently being provisioned"); | |
2309 | err = -EBUSY; | |
2310 | goto out; | |
2311 | } | |
2312 | if (linecard->state == DEVLINK_LINECARD_STATE_UNPROVISIONING) { | |
2313 | NL_SET_ERR_MSG_MOD(extack, "Line card is currently being unprovisioned"); | |
2314 | err = -EBUSY; | |
2315 | goto out; | |
2316 | } | |
2317 | ||
2318 | linecard_type = devlink_linecard_type_lookup(linecard, type); | |
2319 | if (!linecard_type) { | |
2320 | NL_SET_ERR_MSG_MOD(extack, "Unsupported line card type provided"); | |
2321 | err = -EINVAL; | |
2322 | goto out; | |
2323 | } | |
2324 | ||
2325 | if (linecard->state != DEVLINK_LINECARD_STATE_UNPROVISIONED && | |
2326 | linecard->state != DEVLINK_LINECARD_STATE_PROVISIONING_FAILED) { | |
2327 | NL_SET_ERR_MSG_MOD(extack, "Line card already provisioned"); | |
2328 | err = -EBUSY; | |
2329 | /* Check if the line card is provisioned in the same | |
2330 | * way the user asks. In case it is, make the operation | |
2331 | * to return success. | |
2332 | */ | |
2333 | if (ops->same_provision && | |
2334 | ops->same_provision(linecard, linecard->priv, | |
2335 | linecard_type->type, | |
2336 | linecard_type->priv)) | |
2337 | err = 0; | |
2338 | goto out; | |
2339 | } | |
2340 | ||
2341 | linecard->state = DEVLINK_LINECARD_STATE_PROVISIONING; | |
2342 | linecard->type = linecard_type->type; | |
2343 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
2344 | mutex_unlock(&linecard->state_lock); | |
2345 | err = ops->provision(linecard, linecard->priv, linecard_type->type, | |
2346 | linecard_type->priv, extack); | |
2347 | if (err) { | |
2348 | /* Provisioning failed. Assume the linecard is unprovisioned | |
2349 | * for future operations. | |
2350 | */ | |
2351 | mutex_lock(&linecard->state_lock); | |
2352 | linecard->state = DEVLINK_LINECARD_STATE_UNPROVISIONED; | |
2353 | linecard->type = NULL; | |
2354 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
2355 | mutex_unlock(&linecard->state_lock); | |
2356 | } | |
2357 | return err; | |
2358 | ||
2359 | out: | |
2360 | mutex_unlock(&linecard->state_lock); | |
2361 | return err; | |
2362 | } | |
2363 | ||
2364 | static int devlink_linecard_type_unset(struct devlink_linecard *linecard, | |
2365 | struct netlink_ext_ack *extack) | |
2366 | { | |
2367 | int err; | |
2368 | ||
2369 | mutex_lock(&linecard->state_lock); | |
2370 | if (linecard->state == DEVLINK_LINECARD_STATE_PROVISIONING) { | |
2371 | NL_SET_ERR_MSG_MOD(extack, "Line card is currently being provisioned"); | |
2372 | err = -EBUSY; | |
2373 | goto out; | |
2374 | } | |
2375 | if (linecard->state == DEVLINK_LINECARD_STATE_UNPROVISIONING) { | |
2376 | NL_SET_ERR_MSG_MOD(extack, "Line card is currently being unprovisioned"); | |
2377 | err = -EBUSY; | |
2378 | goto out; | |
2379 | } | |
2380 | if (linecard->state == DEVLINK_LINECARD_STATE_PROVISIONING_FAILED) { | |
2381 | linecard->state = DEVLINK_LINECARD_STATE_UNPROVISIONED; | |
2382 | linecard->type = NULL; | |
2383 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
2384 | err = 0; | |
2385 | goto out; | |
2386 | } | |
2387 | ||
2388 | if (linecard->state == DEVLINK_LINECARD_STATE_UNPROVISIONED) { | |
2389 | NL_SET_ERR_MSG_MOD(extack, "Line card is not provisioned"); | |
2390 | err = 0; | |
2391 | goto out; | |
2392 | } | |
2393 | linecard->state = DEVLINK_LINECARD_STATE_UNPROVISIONING; | |
2394 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
2395 | mutex_unlock(&linecard->state_lock); | |
2396 | err = linecard->ops->unprovision(linecard, linecard->priv, | |
2397 | extack); | |
2398 | if (err) { | |
2399 | /* Unprovisioning failed. Assume the linecard is unprovisioned | |
2400 | * for future operations. | |
2401 | */ | |
2402 | mutex_lock(&linecard->state_lock); | |
2403 | linecard->state = DEVLINK_LINECARD_STATE_UNPROVISIONED; | |
2404 | linecard->type = NULL; | |
2405 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
2406 | mutex_unlock(&linecard->state_lock); | |
2407 | } | |
2408 | return err; | |
2409 | ||
2410 | out: | |
2411 | mutex_unlock(&linecard->state_lock); | |
2412 | return err; | |
2413 | } | |
2414 | ||
2415 | static int devlink_nl_cmd_linecard_set_doit(struct sk_buff *skb, | |
2416 | struct genl_info *info) | |
2417 | { | |
2418 | struct devlink_linecard *linecard = info->user_ptr[1]; | |
2419 | struct netlink_ext_ack *extack = info->extack; | |
2420 | int err; | |
2421 | ||
2422 | if (info->attrs[DEVLINK_ATTR_LINECARD_TYPE]) { | |
2423 | const char *type; | |
2424 | ||
2425 | type = nla_data(info->attrs[DEVLINK_ATTR_LINECARD_TYPE]); | |
2426 | if (strcmp(type, "")) { | |
2427 | err = devlink_linecard_type_set(linecard, type, extack); | |
2428 | if (err) | |
2429 | return err; | |
2430 | } else { | |
2431 | err = devlink_linecard_type_unset(linecard, extack); | |
2432 | if (err) | |
2433 | return err; | |
2434 | } | |
2435 | } | |
2436 | ||
2437 | return 0; | |
2438 | } | |
2439 | ||
bf797471 JP |
2440 | static int devlink_nl_sb_fill(struct sk_buff *msg, struct devlink *devlink, |
2441 | struct devlink_sb *devlink_sb, | |
2442 | enum devlink_command cmd, u32 portid, | |
2443 | u32 seq, int flags) | |
2444 | { | |
2445 | void *hdr; | |
2446 | ||
2447 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
2448 | if (!hdr) | |
2449 | return -EMSGSIZE; | |
2450 | ||
2451 | if (devlink_nl_put_handle(msg, devlink)) | |
2452 | goto nla_put_failure; | |
2453 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_INDEX, devlink_sb->index)) | |
2454 | goto nla_put_failure; | |
2455 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_SIZE, devlink_sb->size)) | |
2456 | goto nla_put_failure; | |
2457 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_INGRESS_POOL_COUNT, | |
2458 | devlink_sb->ingress_pools_count)) | |
2459 | goto nla_put_failure; | |
2460 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_EGRESS_POOL_COUNT, | |
2461 | devlink_sb->egress_pools_count)) | |
2462 | goto nla_put_failure; | |
2463 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_INGRESS_TC_COUNT, | |
2464 | devlink_sb->ingress_tc_count)) | |
2465 | goto nla_put_failure; | |
2466 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_EGRESS_TC_COUNT, | |
2467 | devlink_sb->egress_tc_count)) | |
2468 | goto nla_put_failure; | |
2469 | ||
2470 | genlmsg_end(msg, hdr); | |
2471 | return 0; | |
2472 | ||
2473 | nla_put_failure: | |
2474 | genlmsg_cancel(msg, hdr); | |
2475 | return -EMSGSIZE; | |
2476 | } | |
2477 | ||
2478 | static int devlink_nl_cmd_sb_get_doit(struct sk_buff *skb, | |
2479 | struct genl_info *info) | |
2480 | { | |
2481 | struct devlink *devlink = info->user_ptr[0]; | |
637989b5 | 2482 | struct devlink_sb *devlink_sb; |
bf797471 JP |
2483 | struct sk_buff *msg; |
2484 | int err; | |
2485 | ||
637989b5 PP |
2486 | devlink_sb = devlink_sb_get_from_info(devlink, info); |
2487 | if (IS_ERR(devlink_sb)) | |
2488 | return PTR_ERR(devlink_sb); | |
2489 | ||
bf797471 JP |
2490 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
2491 | if (!msg) | |
2492 | return -ENOMEM; | |
2493 | ||
2494 | err = devlink_nl_sb_fill(msg, devlink, devlink_sb, | |
2495 | DEVLINK_CMD_SB_NEW, | |
2496 | info->snd_portid, info->snd_seq, 0); | |
2497 | if (err) { | |
2498 | nlmsg_free(msg); | |
2499 | return err; | |
2500 | } | |
2501 | ||
2502 | return genlmsg_reply(msg, info); | |
2503 | } | |
2504 | ||
2505 | static int devlink_nl_cmd_sb_get_dumpit(struct sk_buff *msg, | |
2506 | struct netlink_callback *cb) | |
2507 | { | |
2508 | struct devlink *devlink; | |
2509 | struct devlink_sb *devlink_sb; | |
2510 | int start = cb->args[0]; | |
11a861d7 | 2511 | unsigned long index; |
bf797471 JP |
2512 | int idx = 0; |
2513 | int err; | |
2514 | ||
2515 | mutex_lock(&devlink_mutex); | |
294c4f57 | 2516 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
7715023a | 2517 | devl_lock(devlink); |
bf797471 JP |
2518 | list_for_each_entry(devlink_sb, &devlink->sb_list, list) { |
2519 | if (idx < start) { | |
2520 | idx++; | |
2521 | continue; | |
2522 | } | |
2523 | err = devlink_nl_sb_fill(msg, devlink, devlink_sb, | |
2524 | DEVLINK_CMD_SB_NEW, | |
2525 | NETLINK_CB(cb->skb).portid, | |
2526 | cb->nlh->nlmsg_seq, | |
2527 | NLM_F_MULTI); | |
2406e7e5 | 2528 | if (err) { |
7715023a | 2529 | devl_unlock(devlink); |
437ebfd9 | 2530 | devlink_put(devlink); |
bf797471 | 2531 | goto out; |
2406e7e5 | 2532 | } |
bf797471 JP |
2533 | idx++; |
2534 | } | |
7715023a | 2535 | devl_unlock(devlink); |
437ebfd9 | 2536 | devlink_put(devlink); |
bf797471 JP |
2537 | } |
2538 | out: | |
2539 | mutex_unlock(&devlink_mutex); | |
2540 | ||
2541 | cb->args[0] = idx; | |
2542 | return msg->len; | |
2543 | } | |
2544 | ||
2545 | static int devlink_nl_sb_pool_fill(struct sk_buff *msg, struct devlink *devlink, | |
2546 | struct devlink_sb *devlink_sb, | |
2547 | u16 pool_index, enum devlink_command cmd, | |
2548 | u32 portid, u32 seq, int flags) | |
2549 | { | |
2550 | struct devlink_sb_pool_info pool_info; | |
2551 | void *hdr; | |
2552 | int err; | |
2553 | ||
2554 | err = devlink->ops->sb_pool_get(devlink, devlink_sb->index, | |
2555 | pool_index, &pool_info); | |
2556 | if (err) | |
2557 | return err; | |
2558 | ||
2559 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
2560 | if (!hdr) | |
2561 | return -EMSGSIZE; | |
2562 | ||
2563 | if (devlink_nl_put_handle(msg, devlink)) | |
2564 | goto nla_put_failure; | |
2565 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_INDEX, devlink_sb->index)) | |
2566 | goto nla_put_failure; | |
2567 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_POOL_INDEX, pool_index)) | |
2568 | goto nla_put_failure; | |
2569 | if (nla_put_u8(msg, DEVLINK_ATTR_SB_POOL_TYPE, pool_info.pool_type)) | |
2570 | goto nla_put_failure; | |
2571 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_POOL_SIZE, pool_info.size)) | |
2572 | goto nla_put_failure; | |
2573 | if (nla_put_u8(msg, DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE, | |
2574 | pool_info.threshold_type)) | |
2575 | goto nla_put_failure; | |
bff5731d JK |
2576 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_POOL_CELL_SIZE, |
2577 | pool_info.cell_size)) | |
2578 | goto nla_put_failure; | |
bf797471 JP |
2579 | |
2580 | genlmsg_end(msg, hdr); | |
2581 | return 0; | |
2582 | ||
2583 | nla_put_failure: | |
2584 | genlmsg_cancel(msg, hdr); | |
2585 | return -EMSGSIZE; | |
2586 | } | |
2587 | ||
2588 | static int devlink_nl_cmd_sb_pool_get_doit(struct sk_buff *skb, | |
2589 | struct genl_info *info) | |
2590 | { | |
2591 | struct devlink *devlink = info->user_ptr[0]; | |
637989b5 | 2592 | struct devlink_sb *devlink_sb; |
bf797471 JP |
2593 | struct sk_buff *msg; |
2594 | u16 pool_index; | |
2595 | int err; | |
2596 | ||
637989b5 PP |
2597 | devlink_sb = devlink_sb_get_from_info(devlink, info); |
2598 | if (IS_ERR(devlink_sb)) | |
2599 | return PTR_ERR(devlink_sb); | |
2600 | ||
bf797471 JP |
2601 | err = devlink_sb_pool_index_get_from_info(devlink_sb, info, |
2602 | &pool_index); | |
2603 | if (err) | |
2604 | return err; | |
2605 | ||
be6fe1d8 | 2606 | if (!devlink->ops->sb_pool_get) |
bf797471 JP |
2607 | return -EOPNOTSUPP; |
2608 | ||
2609 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
2610 | if (!msg) | |
2611 | return -ENOMEM; | |
2612 | ||
2613 | err = devlink_nl_sb_pool_fill(msg, devlink, devlink_sb, pool_index, | |
2614 | DEVLINK_CMD_SB_POOL_NEW, | |
2615 | info->snd_portid, info->snd_seq, 0); | |
2616 | if (err) { | |
2617 | nlmsg_free(msg); | |
2618 | return err; | |
2619 | } | |
2620 | ||
2621 | return genlmsg_reply(msg, info); | |
2622 | } | |
2623 | ||
2624 | static int __sb_pool_get_dumpit(struct sk_buff *msg, int start, int *p_idx, | |
2625 | struct devlink *devlink, | |
2626 | struct devlink_sb *devlink_sb, | |
2627 | u32 portid, u32 seq) | |
2628 | { | |
2629 | u16 pool_count = devlink_sb_pool_count(devlink_sb); | |
2630 | u16 pool_index; | |
2631 | int err; | |
2632 | ||
2633 | for (pool_index = 0; pool_index < pool_count; pool_index++) { | |
2634 | if (*p_idx < start) { | |
2635 | (*p_idx)++; | |
2636 | continue; | |
2637 | } | |
2638 | err = devlink_nl_sb_pool_fill(msg, devlink, | |
2639 | devlink_sb, | |
2640 | pool_index, | |
2641 | DEVLINK_CMD_SB_POOL_NEW, | |
2642 | portid, seq, NLM_F_MULTI); | |
2643 | if (err) | |
2644 | return err; | |
2645 | (*p_idx)++; | |
2646 | } | |
2647 | return 0; | |
2648 | } | |
2649 | ||
2650 | static int devlink_nl_cmd_sb_pool_get_dumpit(struct sk_buff *msg, | |
2651 | struct netlink_callback *cb) | |
2652 | { | |
2653 | struct devlink *devlink; | |
2654 | struct devlink_sb *devlink_sb; | |
2655 | int start = cb->args[0]; | |
11a861d7 | 2656 | unsigned long index; |
bf797471 | 2657 | int idx = 0; |
c62c2cfb | 2658 | int err = 0; |
bf797471 JP |
2659 | |
2660 | mutex_lock(&devlink_mutex); | |
294c4f57 | 2661 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
2bb88b2c | 2662 | if (!devlink->ops->sb_pool_get) |
437ebfd9 LR |
2663 | goto retry; |
2664 | ||
7715023a | 2665 | devl_lock(devlink); |
bf797471 JP |
2666 | list_for_each_entry(devlink_sb, &devlink->sb_list, list) { |
2667 | err = __sb_pool_get_dumpit(msg, start, &idx, devlink, | |
2668 | devlink_sb, | |
2669 | NETLINK_CB(cb->skb).portid, | |
2670 | cb->nlh->nlmsg_seq); | |
82274d07 JK |
2671 | if (err == -EOPNOTSUPP) { |
2672 | err = 0; | |
2673 | } else if (err) { | |
7715023a | 2674 | devl_unlock(devlink); |
437ebfd9 | 2675 | devlink_put(devlink); |
bf797471 | 2676 | goto out; |
2406e7e5 | 2677 | } |
bf797471 | 2678 | } |
7715023a | 2679 | devl_unlock(devlink); |
437ebfd9 LR |
2680 | retry: |
2681 | devlink_put(devlink); | |
bf797471 JP |
2682 | } |
2683 | out: | |
2684 | mutex_unlock(&devlink_mutex); | |
2685 | ||
c62c2cfb JP |
2686 | if (err != -EMSGSIZE) |
2687 | return err; | |
2688 | ||
bf797471 JP |
2689 | cb->args[0] = idx; |
2690 | return msg->len; | |
2691 | } | |
2692 | ||
2693 | static int devlink_sb_pool_set(struct devlink *devlink, unsigned int sb_index, | |
2694 | u16 pool_index, u32 size, | |
f2ad1a52 IS |
2695 | enum devlink_sb_threshold_type threshold_type, |
2696 | struct netlink_ext_ack *extack) | |
bf797471 JP |
2697 | |
2698 | { | |
2699 | const struct devlink_ops *ops = devlink->ops; | |
2700 | ||
be6fe1d8 | 2701 | if (ops->sb_pool_set) |
bf797471 | 2702 | return ops->sb_pool_set(devlink, sb_index, pool_index, |
f2ad1a52 | 2703 | size, threshold_type, extack); |
bf797471 JP |
2704 | return -EOPNOTSUPP; |
2705 | } | |
2706 | ||
2707 | static int devlink_nl_cmd_sb_pool_set_doit(struct sk_buff *skb, | |
2708 | struct genl_info *info) | |
2709 | { | |
2710 | struct devlink *devlink = info->user_ptr[0]; | |
bf797471 | 2711 | enum devlink_sb_threshold_type threshold_type; |
637989b5 | 2712 | struct devlink_sb *devlink_sb; |
bf797471 JP |
2713 | u16 pool_index; |
2714 | u32 size; | |
2715 | int err; | |
2716 | ||
637989b5 PP |
2717 | devlink_sb = devlink_sb_get_from_info(devlink, info); |
2718 | if (IS_ERR(devlink_sb)) | |
2719 | return PTR_ERR(devlink_sb); | |
2720 | ||
bf797471 JP |
2721 | err = devlink_sb_pool_index_get_from_info(devlink_sb, info, |
2722 | &pool_index); | |
2723 | if (err) | |
2724 | return err; | |
2725 | ||
2726 | err = devlink_sb_th_type_get_from_info(info, &threshold_type); | |
2727 | if (err) | |
2728 | return err; | |
2729 | ||
2730 | if (!info->attrs[DEVLINK_ATTR_SB_POOL_SIZE]) | |
2731 | return -EINVAL; | |
2732 | ||
2733 | size = nla_get_u32(info->attrs[DEVLINK_ATTR_SB_POOL_SIZE]); | |
2734 | return devlink_sb_pool_set(devlink, devlink_sb->index, | |
f2ad1a52 IS |
2735 | pool_index, size, threshold_type, |
2736 | info->extack); | |
bf797471 JP |
2737 | } |
2738 | ||
2739 | static int devlink_nl_sb_port_pool_fill(struct sk_buff *msg, | |
2740 | struct devlink *devlink, | |
2741 | struct devlink_port *devlink_port, | |
2742 | struct devlink_sb *devlink_sb, | |
2743 | u16 pool_index, | |
2744 | enum devlink_command cmd, | |
2745 | u32 portid, u32 seq, int flags) | |
2746 | { | |
df38dafd | 2747 | const struct devlink_ops *ops = devlink->ops; |
bf797471 JP |
2748 | u32 threshold; |
2749 | void *hdr; | |
2750 | int err; | |
2751 | ||
df38dafd JP |
2752 | err = ops->sb_port_pool_get(devlink_port, devlink_sb->index, |
2753 | pool_index, &threshold); | |
bf797471 JP |
2754 | if (err) |
2755 | return err; | |
2756 | ||
2757 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
2758 | if (!hdr) | |
2759 | return -EMSGSIZE; | |
2760 | ||
2761 | if (devlink_nl_put_handle(msg, devlink)) | |
2762 | goto nla_put_failure; | |
2763 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, devlink_port->index)) | |
2764 | goto nla_put_failure; | |
2765 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_INDEX, devlink_sb->index)) | |
2766 | goto nla_put_failure; | |
2767 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_POOL_INDEX, pool_index)) | |
2768 | goto nla_put_failure; | |
2769 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_THRESHOLD, threshold)) | |
2770 | goto nla_put_failure; | |
2771 | ||
df38dafd JP |
2772 | if (ops->sb_occ_port_pool_get) { |
2773 | u32 cur; | |
2774 | u32 max; | |
2775 | ||
2776 | err = ops->sb_occ_port_pool_get(devlink_port, devlink_sb->index, | |
2777 | pool_index, &cur, &max); | |
2778 | if (err && err != -EOPNOTSUPP) | |
849920c7 | 2779 | goto sb_occ_get_failure; |
df38dafd JP |
2780 | if (!err) { |
2781 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_OCC_CUR, cur)) | |
2782 | goto nla_put_failure; | |
2783 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_OCC_MAX, max)) | |
2784 | goto nla_put_failure; | |
2785 | } | |
2786 | } | |
2787 | ||
bf797471 JP |
2788 | genlmsg_end(msg, hdr); |
2789 | return 0; | |
2790 | ||
2791 | nla_put_failure: | |
849920c7 WH |
2792 | err = -EMSGSIZE; |
2793 | sb_occ_get_failure: | |
bf797471 | 2794 | genlmsg_cancel(msg, hdr); |
849920c7 | 2795 | return err; |
bf797471 JP |
2796 | } |
2797 | ||
2798 | static int devlink_nl_cmd_sb_port_pool_get_doit(struct sk_buff *skb, | |
2799 | struct genl_info *info) | |
2800 | { | |
637989b5 | 2801 | struct devlink_port *devlink_port = info->user_ptr[1]; |
bf797471 | 2802 | struct devlink *devlink = devlink_port->devlink; |
637989b5 | 2803 | struct devlink_sb *devlink_sb; |
bf797471 JP |
2804 | struct sk_buff *msg; |
2805 | u16 pool_index; | |
2806 | int err; | |
2807 | ||
637989b5 PP |
2808 | devlink_sb = devlink_sb_get_from_info(devlink, info); |
2809 | if (IS_ERR(devlink_sb)) | |
2810 | return PTR_ERR(devlink_sb); | |
2811 | ||
bf797471 JP |
2812 | err = devlink_sb_pool_index_get_from_info(devlink_sb, info, |
2813 | &pool_index); | |
2814 | if (err) | |
2815 | return err; | |
2816 | ||
be6fe1d8 | 2817 | if (!devlink->ops->sb_port_pool_get) |
bf797471 JP |
2818 | return -EOPNOTSUPP; |
2819 | ||
2820 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
2821 | if (!msg) | |
2822 | return -ENOMEM; | |
2823 | ||
2824 | err = devlink_nl_sb_port_pool_fill(msg, devlink, devlink_port, | |
2825 | devlink_sb, pool_index, | |
2826 | DEVLINK_CMD_SB_PORT_POOL_NEW, | |
2827 | info->snd_portid, info->snd_seq, 0); | |
2828 | if (err) { | |
2829 | nlmsg_free(msg); | |
2830 | return err; | |
2831 | } | |
2832 | ||
2833 | return genlmsg_reply(msg, info); | |
2834 | } | |
2835 | ||
2836 | static int __sb_port_pool_get_dumpit(struct sk_buff *msg, int start, int *p_idx, | |
2837 | struct devlink *devlink, | |
2838 | struct devlink_sb *devlink_sb, | |
2839 | u32 portid, u32 seq) | |
2840 | { | |
2841 | struct devlink_port *devlink_port; | |
2842 | u16 pool_count = devlink_sb_pool_count(devlink_sb); | |
2843 | u16 pool_index; | |
2844 | int err; | |
2845 | ||
2846 | list_for_each_entry(devlink_port, &devlink->port_list, list) { | |
2847 | for (pool_index = 0; pool_index < pool_count; pool_index++) { | |
2848 | if (*p_idx < start) { | |
2849 | (*p_idx)++; | |
2850 | continue; | |
2851 | } | |
2852 | err = devlink_nl_sb_port_pool_fill(msg, devlink, | |
2853 | devlink_port, | |
2854 | devlink_sb, | |
2855 | pool_index, | |
2856 | DEVLINK_CMD_SB_PORT_POOL_NEW, | |
2857 | portid, seq, | |
2858 | NLM_F_MULTI); | |
2859 | if (err) | |
2860 | return err; | |
2861 | (*p_idx)++; | |
2862 | } | |
2863 | } | |
2864 | return 0; | |
2865 | } | |
2866 | ||
2867 | static int devlink_nl_cmd_sb_port_pool_get_dumpit(struct sk_buff *msg, | |
2868 | struct netlink_callback *cb) | |
2869 | { | |
2870 | struct devlink *devlink; | |
2871 | struct devlink_sb *devlink_sb; | |
2872 | int start = cb->args[0]; | |
11a861d7 | 2873 | unsigned long index; |
bf797471 | 2874 | int idx = 0; |
c62c2cfb | 2875 | int err = 0; |
bf797471 JP |
2876 | |
2877 | mutex_lock(&devlink_mutex); | |
294c4f57 JP |
2878 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
2879 | if (!devlink->ops->sb_port_pool_get) | |
437ebfd9 LR |
2880 | goto retry; |
2881 | ||
7715023a | 2882 | devl_lock(devlink); |
bf797471 JP |
2883 | list_for_each_entry(devlink_sb, &devlink->sb_list, list) { |
2884 | err = __sb_port_pool_get_dumpit(msg, start, &idx, | |
2885 | devlink, devlink_sb, | |
2886 | NETLINK_CB(cb->skb).portid, | |
2887 | cb->nlh->nlmsg_seq); | |
82274d07 JK |
2888 | if (err == -EOPNOTSUPP) { |
2889 | err = 0; | |
2890 | } else if (err) { | |
7715023a | 2891 | devl_unlock(devlink); |
437ebfd9 | 2892 | devlink_put(devlink); |
bf797471 | 2893 | goto out; |
2406e7e5 | 2894 | } |
bf797471 | 2895 | } |
7715023a | 2896 | devl_unlock(devlink); |
437ebfd9 LR |
2897 | retry: |
2898 | devlink_put(devlink); | |
bf797471 JP |
2899 | } |
2900 | out: | |
bf797471 JP |
2901 | mutex_unlock(&devlink_mutex); |
2902 | ||
c62c2cfb JP |
2903 | if (err != -EMSGSIZE) |
2904 | return err; | |
2905 | ||
bf797471 JP |
2906 | cb->args[0] = idx; |
2907 | return msg->len; | |
2908 | } | |
2909 | ||
2910 | static int devlink_sb_port_pool_set(struct devlink_port *devlink_port, | |
2911 | unsigned int sb_index, u16 pool_index, | |
f2ad1a52 IS |
2912 | u32 threshold, |
2913 | struct netlink_ext_ack *extack) | |
bf797471 JP |
2914 | |
2915 | { | |
2916 | const struct devlink_ops *ops = devlink_port->devlink->ops; | |
2917 | ||
be6fe1d8 | 2918 | if (ops->sb_port_pool_set) |
bf797471 | 2919 | return ops->sb_port_pool_set(devlink_port, sb_index, |
f2ad1a52 | 2920 | pool_index, threshold, extack); |
bf797471 JP |
2921 | return -EOPNOTSUPP; |
2922 | } | |
2923 | ||
2924 | static int devlink_nl_cmd_sb_port_pool_set_doit(struct sk_buff *skb, | |
2925 | struct genl_info *info) | |
2926 | { | |
637989b5 PP |
2927 | struct devlink_port *devlink_port = info->user_ptr[1]; |
2928 | struct devlink *devlink = info->user_ptr[0]; | |
2929 | struct devlink_sb *devlink_sb; | |
bf797471 JP |
2930 | u16 pool_index; |
2931 | u32 threshold; | |
2932 | int err; | |
2933 | ||
637989b5 PP |
2934 | devlink_sb = devlink_sb_get_from_info(devlink, info); |
2935 | if (IS_ERR(devlink_sb)) | |
2936 | return PTR_ERR(devlink_sb); | |
2937 | ||
bf797471 JP |
2938 | err = devlink_sb_pool_index_get_from_info(devlink_sb, info, |
2939 | &pool_index); | |
2940 | if (err) | |
2941 | return err; | |
2942 | ||
2943 | if (!info->attrs[DEVLINK_ATTR_SB_THRESHOLD]) | |
2944 | return -EINVAL; | |
2945 | ||
2946 | threshold = nla_get_u32(info->attrs[DEVLINK_ATTR_SB_THRESHOLD]); | |
2947 | return devlink_sb_port_pool_set(devlink_port, devlink_sb->index, | |
f2ad1a52 | 2948 | pool_index, threshold, info->extack); |
bf797471 JP |
2949 | } |
2950 | ||
2951 | static int | |
2952 | devlink_nl_sb_tc_pool_bind_fill(struct sk_buff *msg, struct devlink *devlink, | |
2953 | struct devlink_port *devlink_port, | |
2954 | struct devlink_sb *devlink_sb, u16 tc_index, | |
2955 | enum devlink_sb_pool_type pool_type, | |
2956 | enum devlink_command cmd, | |
2957 | u32 portid, u32 seq, int flags) | |
2958 | { | |
df38dafd | 2959 | const struct devlink_ops *ops = devlink->ops; |
bf797471 JP |
2960 | u16 pool_index; |
2961 | u32 threshold; | |
2962 | void *hdr; | |
2963 | int err; | |
2964 | ||
df38dafd JP |
2965 | err = ops->sb_tc_pool_bind_get(devlink_port, devlink_sb->index, |
2966 | tc_index, pool_type, | |
2967 | &pool_index, &threshold); | |
bf797471 JP |
2968 | if (err) |
2969 | return err; | |
2970 | ||
2971 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
2972 | if (!hdr) | |
2973 | return -EMSGSIZE; | |
2974 | ||
2975 | if (devlink_nl_put_handle(msg, devlink)) | |
2976 | goto nla_put_failure; | |
2977 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, devlink_port->index)) | |
2978 | goto nla_put_failure; | |
2979 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_INDEX, devlink_sb->index)) | |
2980 | goto nla_put_failure; | |
2981 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_TC_INDEX, tc_index)) | |
2982 | goto nla_put_failure; | |
2983 | if (nla_put_u8(msg, DEVLINK_ATTR_SB_POOL_TYPE, pool_type)) | |
2984 | goto nla_put_failure; | |
2985 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_POOL_INDEX, pool_index)) | |
2986 | goto nla_put_failure; | |
2987 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_THRESHOLD, threshold)) | |
2988 | goto nla_put_failure; | |
2989 | ||
df38dafd JP |
2990 | if (ops->sb_occ_tc_port_bind_get) { |
2991 | u32 cur; | |
2992 | u32 max; | |
2993 | ||
2994 | err = ops->sb_occ_tc_port_bind_get(devlink_port, | |
2995 | devlink_sb->index, | |
2996 | tc_index, pool_type, | |
2997 | &cur, &max); | |
2998 | if (err && err != -EOPNOTSUPP) | |
2999 | return err; | |
3000 | if (!err) { | |
3001 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_OCC_CUR, cur)) | |
3002 | goto nla_put_failure; | |
3003 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_OCC_MAX, max)) | |
3004 | goto nla_put_failure; | |
3005 | } | |
3006 | } | |
3007 | ||
bf797471 JP |
3008 | genlmsg_end(msg, hdr); |
3009 | return 0; | |
3010 | ||
3011 | nla_put_failure: | |
3012 | genlmsg_cancel(msg, hdr); | |
3013 | return -EMSGSIZE; | |
3014 | } | |
3015 | ||
3016 | static int devlink_nl_cmd_sb_tc_pool_bind_get_doit(struct sk_buff *skb, | |
3017 | struct genl_info *info) | |
3018 | { | |
637989b5 | 3019 | struct devlink_port *devlink_port = info->user_ptr[1]; |
bf797471 | 3020 | struct devlink *devlink = devlink_port->devlink; |
637989b5 | 3021 | struct devlink_sb *devlink_sb; |
bf797471 JP |
3022 | struct sk_buff *msg; |
3023 | enum devlink_sb_pool_type pool_type; | |
3024 | u16 tc_index; | |
3025 | int err; | |
3026 | ||
637989b5 PP |
3027 | devlink_sb = devlink_sb_get_from_info(devlink, info); |
3028 | if (IS_ERR(devlink_sb)) | |
3029 | return PTR_ERR(devlink_sb); | |
3030 | ||
bf797471 JP |
3031 | err = devlink_sb_pool_type_get_from_info(info, &pool_type); |
3032 | if (err) | |
3033 | return err; | |
3034 | ||
3035 | err = devlink_sb_tc_index_get_from_info(devlink_sb, info, | |
3036 | pool_type, &tc_index); | |
3037 | if (err) | |
3038 | return err; | |
3039 | ||
be6fe1d8 | 3040 | if (!devlink->ops->sb_tc_pool_bind_get) |
bf797471 JP |
3041 | return -EOPNOTSUPP; |
3042 | ||
3043 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
3044 | if (!msg) | |
3045 | return -ENOMEM; | |
3046 | ||
3047 | err = devlink_nl_sb_tc_pool_bind_fill(msg, devlink, devlink_port, | |
3048 | devlink_sb, tc_index, pool_type, | |
3049 | DEVLINK_CMD_SB_TC_POOL_BIND_NEW, | |
3050 | info->snd_portid, | |
3051 | info->snd_seq, 0); | |
3052 | if (err) { | |
3053 | nlmsg_free(msg); | |
3054 | return err; | |
3055 | } | |
3056 | ||
3057 | return genlmsg_reply(msg, info); | |
3058 | } | |
3059 | ||
3060 | static int __sb_tc_pool_bind_get_dumpit(struct sk_buff *msg, | |
3061 | int start, int *p_idx, | |
3062 | struct devlink *devlink, | |
3063 | struct devlink_sb *devlink_sb, | |
3064 | u32 portid, u32 seq) | |
3065 | { | |
3066 | struct devlink_port *devlink_port; | |
3067 | u16 tc_index; | |
3068 | int err; | |
3069 | ||
3070 | list_for_each_entry(devlink_port, &devlink->port_list, list) { | |
3071 | for (tc_index = 0; | |
3072 | tc_index < devlink_sb->ingress_tc_count; tc_index++) { | |
3073 | if (*p_idx < start) { | |
3074 | (*p_idx)++; | |
3075 | continue; | |
3076 | } | |
3077 | err = devlink_nl_sb_tc_pool_bind_fill(msg, devlink, | |
3078 | devlink_port, | |
3079 | devlink_sb, | |
3080 | tc_index, | |
3081 | DEVLINK_SB_POOL_TYPE_INGRESS, | |
3082 | DEVLINK_CMD_SB_TC_POOL_BIND_NEW, | |
3083 | portid, seq, | |
3084 | NLM_F_MULTI); | |
3085 | if (err) | |
3086 | return err; | |
3087 | (*p_idx)++; | |
3088 | } | |
3089 | for (tc_index = 0; | |
3090 | tc_index < devlink_sb->egress_tc_count; tc_index++) { | |
3091 | if (*p_idx < start) { | |
3092 | (*p_idx)++; | |
3093 | continue; | |
3094 | } | |
3095 | err = devlink_nl_sb_tc_pool_bind_fill(msg, devlink, | |
3096 | devlink_port, | |
3097 | devlink_sb, | |
3098 | tc_index, | |
3099 | DEVLINK_SB_POOL_TYPE_EGRESS, | |
3100 | DEVLINK_CMD_SB_TC_POOL_BIND_NEW, | |
3101 | portid, seq, | |
3102 | NLM_F_MULTI); | |
3103 | if (err) | |
3104 | return err; | |
3105 | (*p_idx)++; | |
3106 | } | |
3107 | } | |
3108 | return 0; | |
3109 | } | |
3110 | ||
3111 | static int | |
3112 | devlink_nl_cmd_sb_tc_pool_bind_get_dumpit(struct sk_buff *msg, | |
3113 | struct netlink_callback *cb) | |
3114 | { | |
3115 | struct devlink *devlink; | |
3116 | struct devlink_sb *devlink_sb; | |
3117 | int start = cb->args[0]; | |
11a861d7 | 3118 | unsigned long index; |
bf797471 | 3119 | int idx = 0; |
c62c2cfb | 3120 | int err = 0; |
bf797471 JP |
3121 | |
3122 | mutex_lock(&devlink_mutex); | |
294c4f57 JP |
3123 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
3124 | if (!devlink->ops->sb_tc_pool_bind_get) | |
437ebfd9 | 3125 | goto retry; |
2406e7e5 | 3126 | |
7715023a | 3127 | devl_lock(devlink); |
bf797471 JP |
3128 | list_for_each_entry(devlink_sb, &devlink->sb_list, list) { |
3129 | err = __sb_tc_pool_bind_get_dumpit(msg, start, &idx, | |
3130 | devlink, | |
3131 | devlink_sb, | |
3132 | NETLINK_CB(cb->skb).portid, | |
3133 | cb->nlh->nlmsg_seq); | |
82274d07 JK |
3134 | if (err == -EOPNOTSUPP) { |
3135 | err = 0; | |
3136 | } else if (err) { | |
7715023a | 3137 | devl_unlock(devlink); |
437ebfd9 | 3138 | devlink_put(devlink); |
bf797471 | 3139 | goto out; |
2406e7e5 | 3140 | } |
bf797471 | 3141 | } |
7715023a | 3142 | devl_unlock(devlink); |
437ebfd9 LR |
3143 | retry: |
3144 | devlink_put(devlink); | |
bf797471 JP |
3145 | } |
3146 | out: | |
bf797471 JP |
3147 | mutex_unlock(&devlink_mutex); |
3148 | ||
c62c2cfb JP |
3149 | if (err != -EMSGSIZE) |
3150 | return err; | |
3151 | ||
bf797471 JP |
3152 | cb->args[0] = idx; |
3153 | return msg->len; | |
3154 | } | |
3155 | ||
3156 | static int devlink_sb_tc_pool_bind_set(struct devlink_port *devlink_port, | |
3157 | unsigned int sb_index, u16 tc_index, | |
3158 | enum devlink_sb_pool_type pool_type, | |
f2ad1a52 IS |
3159 | u16 pool_index, u32 threshold, |
3160 | struct netlink_ext_ack *extack) | |
bf797471 JP |
3161 | |
3162 | { | |
3163 | const struct devlink_ops *ops = devlink_port->devlink->ops; | |
3164 | ||
be6fe1d8 | 3165 | if (ops->sb_tc_pool_bind_set) |
bf797471 JP |
3166 | return ops->sb_tc_pool_bind_set(devlink_port, sb_index, |
3167 | tc_index, pool_type, | |
f2ad1a52 | 3168 | pool_index, threshold, extack); |
bf797471 JP |
3169 | return -EOPNOTSUPP; |
3170 | } | |
3171 | ||
3172 | static int devlink_nl_cmd_sb_tc_pool_bind_set_doit(struct sk_buff *skb, | |
3173 | struct genl_info *info) | |
3174 | { | |
637989b5 PP |
3175 | struct devlink_port *devlink_port = info->user_ptr[1]; |
3176 | struct devlink *devlink = info->user_ptr[0]; | |
bf797471 | 3177 | enum devlink_sb_pool_type pool_type; |
637989b5 | 3178 | struct devlink_sb *devlink_sb; |
bf797471 JP |
3179 | u16 tc_index; |
3180 | u16 pool_index; | |
3181 | u32 threshold; | |
3182 | int err; | |
3183 | ||
637989b5 PP |
3184 | devlink_sb = devlink_sb_get_from_info(devlink, info); |
3185 | if (IS_ERR(devlink_sb)) | |
3186 | return PTR_ERR(devlink_sb); | |
3187 | ||
bf797471 JP |
3188 | err = devlink_sb_pool_type_get_from_info(info, &pool_type); |
3189 | if (err) | |
3190 | return err; | |
3191 | ||
3192 | err = devlink_sb_tc_index_get_from_info(devlink_sb, info, | |
3193 | pool_type, &tc_index); | |
3194 | if (err) | |
3195 | return err; | |
3196 | ||
3197 | err = devlink_sb_pool_index_get_from_info(devlink_sb, info, | |
3198 | &pool_index); | |
3199 | if (err) | |
3200 | return err; | |
3201 | ||
3202 | if (!info->attrs[DEVLINK_ATTR_SB_THRESHOLD]) | |
3203 | return -EINVAL; | |
3204 | ||
3205 | threshold = nla_get_u32(info->attrs[DEVLINK_ATTR_SB_THRESHOLD]); | |
3206 | return devlink_sb_tc_pool_bind_set(devlink_port, devlink_sb->index, | |
3207 | tc_index, pool_type, | |
f2ad1a52 | 3208 | pool_index, threshold, info->extack); |
bf797471 JP |
3209 | } |
3210 | ||
df38dafd JP |
3211 | static int devlink_nl_cmd_sb_occ_snapshot_doit(struct sk_buff *skb, |
3212 | struct genl_info *info) | |
3213 | { | |
3214 | struct devlink *devlink = info->user_ptr[0]; | |
df38dafd | 3215 | const struct devlink_ops *ops = devlink->ops; |
637989b5 PP |
3216 | struct devlink_sb *devlink_sb; |
3217 | ||
3218 | devlink_sb = devlink_sb_get_from_info(devlink, info); | |
3219 | if (IS_ERR(devlink_sb)) | |
3220 | return PTR_ERR(devlink_sb); | |
df38dafd | 3221 | |
be6fe1d8 | 3222 | if (ops->sb_occ_snapshot) |
df38dafd JP |
3223 | return ops->sb_occ_snapshot(devlink, devlink_sb->index); |
3224 | return -EOPNOTSUPP; | |
3225 | } | |
3226 | ||
3227 | static int devlink_nl_cmd_sb_occ_max_clear_doit(struct sk_buff *skb, | |
3228 | struct genl_info *info) | |
3229 | { | |
3230 | struct devlink *devlink = info->user_ptr[0]; | |
df38dafd | 3231 | const struct devlink_ops *ops = devlink->ops; |
637989b5 PP |
3232 | struct devlink_sb *devlink_sb; |
3233 | ||
3234 | devlink_sb = devlink_sb_get_from_info(devlink, info); | |
3235 | if (IS_ERR(devlink_sb)) | |
3236 | return PTR_ERR(devlink_sb); | |
df38dafd | 3237 | |
be6fe1d8 | 3238 | if (ops->sb_occ_max_clear) |
df38dafd JP |
3239 | return ops->sb_occ_max_clear(devlink, devlink_sb->index); |
3240 | return -EOPNOTSUPP; | |
3241 | } | |
3242 | ||
21e3d2dd JP |
3243 | static int devlink_nl_eswitch_fill(struct sk_buff *msg, struct devlink *devlink, |
3244 | enum devlink_command cmd, u32 portid, | |
3245 | u32 seq, int flags) | |
08f4b591 | 3246 | { |
59bfde01 | 3247 | const struct devlink_ops *ops = devlink->ops; |
98fdbea5 LR |
3248 | enum devlink_eswitch_encap_mode encap_mode; |
3249 | u8 inline_mode; | |
08f4b591 | 3250 | void *hdr; |
59bfde01 RD |
3251 | int err = 0; |
3252 | u16 mode; | |
08f4b591 OG |
3253 | |
3254 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
3255 | if (!hdr) | |
3256 | return -EMSGSIZE; | |
3257 | ||
59bfde01 RD |
3258 | err = devlink_nl_put_handle(msg, devlink); |
3259 | if (err) | |
1a6aa36b | 3260 | goto nla_put_failure; |
08f4b591 | 3261 | |
4456f61c JP |
3262 | if (ops->eswitch_mode_get) { |
3263 | err = ops->eswitch_mode_get(devlink, &mode); | |
3264 | if (err) | |
3265 | goto nla_put_failure; | |
3266 | err = nla_put_u16(msg, DEVLINK_ATTR_ESWITCH_MODE, mode); | |
3267 | if (err) | |
3268 | goto nla_put_failure; | |
3269 | } | |
59bfde01 RD |
3270 | |
3271 | if (ops->eswitch_inline_mode_get) { | |
3272 | err = ops->eswitch_inline_mode_get(devlink, &inline_mode); | |
3273 | if (err) | |
1a6aa36b | 3274 | goto nla_put_failure; |
59bfde01 RD |
3275 | err = nla_put_u8(msg, DEVLINK_ATTR_ESWITCH_INLINE_MODE, |
3276 | inline_mode); | |
3277 | if (err) | |
1a6aa36b | 3278 | goto nla_put_failure; |
59bfde01 | 3279 | } |
08f4b591 | 3280 | |
f43e9b06 RD |
3281 | if (ops->eswitch_encap_mode_get) { |
3282 | err = ops->eswitch_encap_mode_get(devlink, &encap_mode); | |
3283 | if (err) | |
3284 | goto nla_put_failure; | |
3285 | err = nla_put_u8(msg, DEVLINK_ATTR_ESWITCH_ENCAP_MODE, encap_mode); | |
3286 | if (err) | |
3287 | goto nla_put_failure; | |
3288 | } | |
3289 | ||
08f4b591 OG |
3290 | genlmsg_end(msg, hdr); |
3291 | return 0; | |
3292 | ||
1a6aa36b | 3293 | nla_put_failure: |
08f4b591 | 3294 | genlmsg_cancel(msg, hdr); |
59bfde01 | 3295 | return err; |
08f4b591 OG |
3296 | } |
3297 | ||
adf200f3 JP |
3298 | static int devlink_nl_cmd_eswitch_get_doit(struct sk_buff *skb, |
3299 | struct genl_info *info) | |
08f4b591 OG |
3300 | { |
3301 | struct devlink *devlink = info->user_ptr[0]; | |
08f4b591 | 3302 | struct sk_buff *msg; |
08f4b591 OG |
3303 | int err; |
3304 | ||
08f4b591 OG |
3305 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
3306 | if (!msg) | |
3307 | return -ENOMEM; | |
3308 | ||
21e3d2dd JP |
3309 | err = devlink_nl_eswitch_fill(msg, devlink, DEVLINK_CMD_ESWITCH_GET, |
3310 | info->snd_portid, info->snd_seq, 0); | |
08f4b591 OG |
3311 | |
3312 | if (err) { | |
3313 | nlmsg_free(msg); | |
3314 | return err; | |
3315 | } | |
3316 | ||
3317 | return genlmsg_reply(msg, info); | |
3318 | } | |
3319 | ||
a8ecb93e DL |
3320 | static int devlink_rate_nodes_check(struct devlink *devlink, u16 mode, |
3321 | struct netlink_ext_ack *extack) | |
3322 | { | |
3323 | struct devlink_rate *devlink_rate; | |
a8ecb93e DL |
3324 | |
3325 | list_for_each_entry(devlink_rate, &devlink->rate_list, list) | |
3326 | if (devlink_rate_is_node(devlink_rate)) { | |
3327 | NL_SET_ERR_MSG_MOD(extack, "Rate node(s) exists."); | |
3328 | return -EBUSY; | |
3329 | } | |
3330 | return 0; | |
3331 | } | |
3332 | ||
adf200f3 JP |
3333 | static int devlink_nl_cmd_eswitch_set_doit(struct sk_buff *skb, |
3334 | struct genl_info *info) | |
08f4b591 OG |
3335 | { |
3336 | struct devlink *devlink = info->user_ptr[0]; | |
3337 | const struct devlink_ops *ops = devlink->ops; | |
98fdbea5 LR |
3338 | enum devlink_eswitch_encap_mode encap_mode; |
3339 | u8 inline_mode; | |
59bfde01 | 3340 | int err = 0; |
f43e9b06 | 3341 | u16 mode; |
08f4b591 | 3342 | |
59bfde01 RD |
3343 | if (info->attrs[DEVLINK_ATTR_ESWITCH_MODE]) { |
3344 | if (!ops->eswitch_mode_set) | |
3345 | return -EOPNOTSUPP; | |
3346 | mode = nla_get_u16(info->attrs[DEVLINK_ATTR_ESWITCH_MODE]); | |
a8ecb93e DL |
3347 | err = devlink_rate_nodes_check(devlink, mode, info->extack); |
3348 | if (err) | |
3349 | return err; | |
db7ff19e | 3350 | err = ops->eswitch_mode_set(devlink, mode, info->extack); |
59bfde01 RD |
3351 | if (err) |
3352 | return err; | |
3353 | } | |
08f4b591 | 3354 | |
59bfde01 RD |
3355 | if (info->attrs[DEVLINK_ATTR_ESWITCH_INLINE_MODE]) { |
3356 | if (!ops->eswitch_inline_mode_set) | |
3357 | return -EOPNOTSUPP; | |
3358 | inline_mode = nla_get_u8( | |
3359 | info->attrs[DEVLINK_ATTR_ESWITCH_INLINE_MODE]); | |
db7ff19e EB |
3360 | err = ops->eswitch_inline_mode_set(devlink, inline_mode, |
3361 | info->extack); | |
59bfde01 RD |
3362 | if (err) |
3363 | return err; | |
3364 | } | |
f43e9b06 RD |
3365 | |
3366 | if (info->attrs[DEVLINK_ATTR_ESWITCH_ENCAP_MODE]) { | |
3367 | if (!ops->eswitch_encap_mode_set) | |
3368 | return -EOPNOTSUPP; | |
3369 | encap_mode = nla_get_u8(info->attrs[DEVLINK_ATTR_ESWITCH_ENCAP_MODE]); | |
db7ff19e EB |
3370 | err = ops->eswitch_encap_mode_set(devlink, encap_mode, |
3371 | info->extack); | |
f43e9b06 RD |
3372 | if (err) |
3373 | return err; | |
3374 | } | |
3375 | ||
1555d204 AS |
3376 | return 0; |
3377 | } | |
3378 | ||
3379 | int devlink_dpipe_match_put(struct sk_buff *skb, | |
3380 | struct devlink_dpipe_match *match) | |
3381 | { | |
3382 | struct devlink_dpipe_header *header = match->header; | |
3383 | struct devlink_dpipe_field *field = &header->fields[match->field_id]; | |
3384 | struct nlattr *match_attr; | |
3385 | ||
ae0be8de | 3386 | match_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_MATCH); |
1555d204 AS |
3387 | if (!match_attr) |
3388 | return -EMSGSIZE; | |
3389 | ||
3390 | if (nla_put_u32(skb, DEVLINK_ATTR_DPIPE_MATCH_TYPE, match->type) || | |
3391 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_INDEX, match->header_index) || | |
3392 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_ID, header->id) || | |
3393 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_ID, field->id) || | |
3394 | nla_put_u8(skb, DEVLINK_ATTR_DPIPE_HEADER_GLOBAL, header->global)) | |
3395 | goto nla_put_failure; | |
3396 | ||
3397 | nla_nest_end(skb, match_attr); | |
3398 | return 0; | |
3399 | ||
3400 | nla_put_failure: | |
3401 | nla_nest_cancel(skb, match_attr); | |
3402 | return -EMSGSIZE; | |
3403 | } | |
3404 | EXPORT_SYMBOL_GPL(devlink_dpipe_match_put); | |
3405 | ||
3406 | static int devlink_dpipe_matches_put(struct devlink_dpipe_table *table, | |
3407 | struct sk_buff *skb) | |
3408 | { | |
3409 | struct nlattr *matches_attr; | |
3410 | ||
ae0be8de MK |
3411 | matches_attr = nla_nest_start_noflag(skb, |
3412 | DEVLINK_ATTR_DPIPE_TABLE_MATCHES); | |
1555d204 AS |
3413 | if (!matches_attr) |
3414 | return -EMSGSIZE; | |
3415 | ||
3416 | if (table->table_ops->matches_dump(table->priv, skb)) | |
3417 | goto nla_put_failure; | |
3418 | ||
3419 | nla_nest_end(skb, matches_attr); | |
3420 | return 0; | |
3421 | ||
3422 | nla_put_failure: | |
3423 | nla_nest_cancel(skb, matches_attr); | |
3424 | return -EMSGSIZE; | |
3425 | } | |
3426 | ||
3427 | int devlink_dpipe_action_put(struct sk_buff *skb, | |
3428 | struct devlink_dpipe_action *action) | |
3429 | { | |
3430 | struct devlink_dpipe_header *header = action->header; | |
3431 | struct devlink_dpipe_field *field = &header->fields[action->field_id]; | |
3432 | struct nlattr *action_attr; | |
3433 | ||
ae0be8de | 3434 | action_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_ACTION); |
1555d204 AS |
3435 | if (!action_attr) |
3436 | return -EMSGSIZE; | |
3437 | ||
3438 | if (nla_put_u32(skb, DEVLINK_ATTR_DPIPE_ACTION_TYPE, action->type) || | |
3439 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_INDEX, action->header_index) || | |
3440 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_ID, header->id) || | |
3441 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_ID, field->id) || | |
3442 | nla_put_u8(skb, DEVLINK_ATTR_DPIPE_HEADER_GLOBAL, header->global)) | |
3443 | goto nla_put_failure; | |
3444 | ||
3445 | nla_nest_end(skb, action_attr); | |
3446 | return 0; | |
3447 | ||
3448 | nla_put_failure: | |
3449 | nla_nest_cancel(skb, action_attr); | |
3450 | return -EMSGSIZE; | |
3451 | } | |
3452 | EXPORT_SYMBOL_GPL(devlink_dpipe_action_put); | |
3453 | ||
3454 | static int devlink_dpipe_actions_put(struct devlink_dpipe_table *table, | |
3455 | struct sk_buff *skb) | |
3456 | { | |
3457 | struct nlattr *actions_attr; | |
3458 | ||
ae0be8de MK |
3459 | actions_attr = nla_nest_start_noflag(skb, |
3460 | DEVLINK_ATTR_DPIPE_TABLE_ACTIONS); | |
1555d204 AS |
3461 | if (!actions_attr) |
3462 | return -EMSGSIZE; | |
3463 | ||
3464 | if (table->table_ops->actions_dump(table->priv, skb)) | |
3465 | goto nla_put_failure; | |
3466 | ||
3467 | nla_nest_end(skb, actions_attr); | |
3468 | return 0; | |
3469 | ||
3470 | nla_put_failure: | |
3471 | nla_nest_cancel(skb, actions_attr); | |
3472 | return -EMSGSIZE; | |
3473 | } | |
3474 | ||
3475 | static int devlink_dpipe_table_put(struct sk_buff *skb, | |
3476 | struct devlink_dpipe_table *table) | |
3477 | { | |
3478 | struct nlattr *table_attr; | |
ffd3cdcc | 3479 | u64 table_size; |
1555d204 | 3480 | |
ffd3cdcc | 3481 | table_size = table->table_ops->size_get(table->priv); |
ae0be8de | 3482 | table_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_TABLE); |
1555d204 AS |
3483 | if (!table_attr) |
3484 | return -EMSGSIZE; | |
3485 | ||
3486 | if (nla_put_string(skb, DEVLINK_ATTR_DPIPE_TABLE_NAME, table->name) || | |
ffd3cdcc | 3487 | nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_TABLE_SIZE, table_size, |
1555d204 AS |
3488 | DEVLINK_ATTR_PAD)) |
3489 | goto nla_put_failure; | |
3490 | if (nla_put_u8(skb, DEVLINK_ATTR_DPIPE_TABLE_COUNTERS_ENABLED, | |
3491 | table->counters_enabled)) | |
3492 | goto nla_put_failure; | |
3493 | ||
56dc7cd0 | 3494 | if (table->resource_valid) { |
3d18e4f1 AS |
3495 | if (nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_TABLE_RESOURCE_ID, |
3496 | table->resource_id, DEVLINK_ATTR_PAD) || | |
3497 | nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_TABLE_RESOURCE_UNITS, | |
3498 | table->resource_units, DEVLINK_ATTR_PAD)) | |
3499 | goto nla_put_failure; | |
56dc7cd0 | 3500 | } |
1555d204 AS |
3501 | if (devlink_dpipe_matches_put(table, skb)) |
3502 | goto nla_put_failure; | |
3503 | ||
3504 | if (devlink_dpipe_actions_put(table, skb)) | |
3505 | goto nla_put_failure; | |
3506 | ||
3507 | nla_nest_end(skb, table_attr); | |
3508 | return 0; | |
3509 | ||
3510 | nla_put_failure: | |
3511 | nla_nest_cancel(skb, table_attr); | |
3512 | return -EMSGSIZE; | |
3513 | } | |
3514 | ||
3515 | static int devlink_dpipe_send_and_alloc_skb(struct sk_buff **pskb, | |
3516 | struct genl_info *info) | |
3517 | { | |
3518 | int err; | |
3519 | ||
3520 | if (*pskb) { | |
3521 | err = genlmsg_reply(*pskb, info); | |
3522 | if (err) | |
3523 | return err; | |
3524 | } | |
3525 | *pskb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
3526 | if (!*pskb) | |
3527 | return -ENOMEM; | |
3528 | return 0; | |
3529 | } | |
3530 | ||
3531 | static int devlink_dpipe_tables_fill(struct genl_info *info, | |
3532 | enum devlink_command cmd, int flags, | |
3533 | struct list_head *dpipe_tables, | |
3534 | const char *table_name) | |
3535 | { | |
3536 | struct devlink *devlink = info->user_ptr[0]; | |
3537 | struct devlink_dpipe_table *table; | |
3538 | struct nlattr *tables_attr; | |
3539 | struct sk_buff *skb = NULL; | |
3540 | struct nlmsghdr *nlh; | |
3541 | bool incomplete; | |
3542 | void *hdr; | |
3543 | int i; | |
3544 | int err; | |
3545 | ||
3546 | table = list_first_entry(dpipe_tables, | |
3547 | struct devlink_dpipe_table, list); | |
3548 | start_again: | |
3549 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); | |
3550 | if (err) | |
3551 | return err; | |
3552 | ||
3553 | hdr = genlmsg_put(skb, info->snd_portid, info->snd_seq, | |
3554 | &devlink_nl_family, NLM_F_MULTI, cmd); | |
6044bd4a HY |
3555 | if (!hdr) { |
3556 | nlmsg_free(skb); | |
1555d204 | 3557 | return -EMSGSIZE; |
6044bd4a | 3558 | } |
1555d204 AS |
3559 | |
3560 | if (devlink_nl_put_handle(skb, devlink)) | |
3561 | goto nla_put_failure; | |
ae0be8de | 3562 | tables_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_TABLES); |
1555d204 AS |
3563 | if (!tables_attr) |
3564 | goto nla_put_failure; | |
3565 | ||
3566 | i = 0; | |
3567 | incomplete = false; | |
3568 | list_for_each_entry_from(table, dpipe_tables, list) { | |
3569 | if (!table_name) { | |
3570 | err = devlink_dpipe_table_put(skb, table); | |
3571 | if (err) { | |
3572 | if (!i) | |
3573 | goto err_table_put; | |
3574 | incomplete = true; | |
3575 | break; | |
3576 | } | |
3577 | } else { | |
3578 | if (!strcmp(table->name, table_name)) { | |
3579 | err = devlink_dpipe_table_put(skb, table); | |
3580 | if (err) | |
3581 | break; | |
3582 | } | |
3583 | } | |
3584 | i++; | |
3585 | } | |
3586 | ||
3587 | nla_nest_end(skb, tables_attr); | |
3588 | genlmsg_end(skb, hdr); | |
3589 | if (incomplete) | |
3590 | goto start_again; | |
3591 | ||
3592 | send_done: | |
3593 | nlh = nlmsg_put(skb, info->snd_portid, info->snd_seq, | |
3594 | NLMSG_DONE, 0, flags | NLM_F_MULTI); | |
3595 | if (!nlh) { | |
3596 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); | |
3597 | if (err) | |
7fe4d6dc | 3598 | return err; |
1555d204 AS |
3599 | goto send_done; |
3600 | } | |
3601 | ||
3602 | return genlmsg_reply(skb, info); | |
3603 | ||
3604 | nla_put_failure: | |
3605 | err = -EMSGSIZE; | |
3606 | err_table_put: | |
1555d204 AS |
3607 | nlmsg_free(skb); |
3608 | return err; | |
3609 | } | |
3610 | ||
3611 | static int devlink_nl_cmd_dpipe_table_get(struct sk_buff *skb, | |
3612 | struct genl_info *info) | |
3613 | { | |
3614 | struct devlink *devlink = info->user_ptr[0]; | |
3615 | const char *table_name = NULL; | |
3616 | ||
3617 | if (info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME]) | |
3618 | table_name = nla_data(info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME]); | |
3619 | ||
3620 | return devlink_dpipe_tables_fill(info, DEVLINK_CMD_DPIPE_TABLE_GET, 0, | |
3621 | &devlink->dpipe_table_list, | |
3622 | table_name); | |
3623 | } | |
3624 | ||
3625 | static int devlink_dpipe_value_put(struct sk_buff *skb, | |
3626 | struct devlink_dpipe_value *value) | |
3627 | { | |
3628 | if (nla_put(skb, DEVLINK_ATTR_DPIPE_VALUE, | |
3629 | value->value_size, value->value)) | |
3630 | return -EMSGSIZE; | |
3631 | if (value->mask) | |
3632 | if (nla_put(skb, DEVLINK_ATTR_DPIPE_VALUE_MASK, | |
3633 | value->value_size, value->mask)) | |
3634 | return -EMSGSIZE; | |
3635 | if (value->mapping_valid) | |
3636 | if (nla_put_u32(skb, DEVLINK_ATTR_DPIPE_VALUE_MAPPING, | |
3637 | value->mapping_value)) | |
3638 | return -EMSGSIZE; | |
3639 | return 0; | |
3640 | } | |
3641 | ||
3642 | static int devlink_dpipe_action_value_put(struct sk_buff *skb, | |
3643 | struct devlink_dpipe_value *value) | |
3644 | { | |
3645 | if (!value->action) | |
3646 | return -EINVAL; | |
3647 | if (devlink_dpipe_action_put(skb, value->action)) | |
3648 | return -EMSGSIZE; | |
3649 | if (devlink_dpipe_value_put(skb, value)) | |
3650 | return -EMSGSIZE; | |
3651 | return 0; | |
3652 | } | |
3653 | ||
3654 | static int devlink_dpipe_action_values_put(struct sk_buff *skb, | |
3655 | struct devlink_dpipe_value *values, | |
3656 | unsigned int values_count) | |
3657 | { | |
3658 | struct nlattr *action_attr; | |
3659 | int i; | |
3660 | int err; | |
3661 | ||
3662 | for (i = 0; i < values_count; i++) { | |
ae0be8de MK |
3663 | action_attr = nla_nest_start_noflag(skb, |
3664 | DEVLINK_ATTR_DPIPE_ACTION_VALUE); | |
1555d204 AS |
3665 | if (!action_attr) |
3666 | return -EMSGSIZE; | |
3667 | err = devlink_dpipe_action_value_put(skb, &values[i]); | |
3668 | if (err) | |
3669 | goto err_action_value_put; | |
3670 | nla_nest_end(skb, action_attr); | |
3671 | } | |
3672 | return 0; | |
3673 | ||
3674 | err_action_value_put: | |
3675 | nla_nest_cancel(skb, action_attr); | |
3676 | return err; | |
3677 | } | |
3678 | ||
3679 | static int devlink_dpipe_match_value_put(struct sk_buff *skb, | |
3680 | struct devlink_dpipe_value *value) | |
3681 | { | |
3682 | if (!value->match) | |
3683 | return -EINVAL; | |
3684 | if (devlink_dpipe_match_put(skb, value->match)) | |
3685 | return -EMSGSIZE; | |
3686 | if (devlink_dpipe_value_put(skb, value)) | |
3687 | return -EMSGSIZE; | |
3688 | return 0; | |
3689 | } | |
3690 | ||
3691 | static int devlink_dpipe_match_values_put(struct sk_buff *skb, | |
3692 | struct devlink_dpipe_value *values, | |
3693 | unsigned int values_count) | |
3694 | { | |
3695 | struct nlattr *match_attr; | |
3696 | int i; | |
3697 | int err; | |
3698 | ||
3699 | for (i = 0; i < values_count; i++) { | |
ae0be8de MK |
3700 | match_attr = nla_nest_start_noflag(skb, |
3701 | DEVLINK_ATTR_DPIPE_MATCH_VALUE); | |
1555d204 AS |
3702 | if (!match_attr) |
3703 | return -EMSGSIZE; | |
3704 | err = devlink_dpipe_match_value_put(skb, &values[i]); | |
3705 | if (err) | |
3706 | goto err_match_value_put; | |
3707 | nla_nest_end(skb, match_attr); | |
3708 | } | |
3709 | return 0; | |
3710 | ||
3711 | err_match_value_put: | |
3712 | nla_nest_cancel(skb, match_attr); | |
3713 | return err; | |
3714 | } | |
3715 | ||
3716 | static int devlink_dpipe_entry_put(struct sk_buff *skb, | |
3717 | struct devlink_dpipe_entry *entry) | |
3718 | { | |
3719 | struct nlattr *entry_attr, *matches_attr, *actions_attr; | |
3720 | int err; | |
3721 | ||
ae0be8de | 3722 | entry_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_ENTRY); |
1555d204 AS |
3723 | if (!entry_attr) |
3724 | return -EMSGSIZE; | |
3725 | ||
3726 | if (nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_ENTRY_INDEX, entry->index, | |
3727 | DEVLINK_ATTR_PAD)) | |
3728 | goto nla_put_failure; | |
3729 | if (entry->counter_valid) | |
3730 | if (nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_ENTRY_COUNTER, | |
3731 | entry->counter, DEVLINK_ATTR_PAD)) | |
3732 | goto nla_put_failure; | |
3733 | ||
ae0be8de MK |
3734 | matches_attr = nla_nest_start_noflag(skb, |
3735 | DEVLINK_ATTR_DPIPE_ENTRY_MATCH_VALUES); | |
1555d204 AS |
3736 | if (!matches_attr) |
3737 | goto nla_put_failure; | |
3738 | ||
3739 | err = devlink_dpipe_match_values_put(skb, entry->match_values, | |
3740 | entry->match_values_count); | |
3741 | if (err) { | |
3742 | nla_nest_cancel(skb, matches_attr); | |
3743 | goto err_match_values_put; | |
3744 | } | |
3745 | nla_nest_end(skb, matches_attr); | |
3746 | ||
ae0be8de MK |
3747 | actions_attr = nla_nest_start_noflag(skb, |
3748 | DEVLINK_ATTR_DPIPE_ENTRY_ACTION_VALUES); | |
1555d204 AS |
3749 | if (!actions_attr) |
3750 | goto nla_put_failure; | |
3751 | ||
3752 | err = devlink_dpipe_action_values_put(skb, entry->action_values, | |
3753 | entry->action_values_count); | |
3754 | if (err) { | |
3755 | nla_nest_cancel(skb, actions_attr); | |
3756 | goto err_action_values_put; | |
3757 | } | |
3758 | nla_nest_end(skb, actions_attr); | |
59bfde01 | 3759 | |
1555d204 | 3760 | nla_nest_end(skb, entry_attr); |
59bfde01 | 3761 | return 0; |
1555d204 AS |
3762 | |
3763 | nla_put_failure: | |
3764 | err = -EMSGSIZE; | |
3765 | err_match_values_put: | |
3766 | err_action_values_put: | |
3767 | nla_nest_cancel(skb, entry_attr); | |
3768 | return err; | |
3769 | } | |
3770 | ||
3771 | static struct devlink_dpipe_table * | |
3772 | devlink_dpipe_table_find(struct list_head *dpipe_tables, | |
2eb51c75 | 3773 | const char *table_name, struct devlink *devlink) |
1555d204 AS |
3774 | { |
3775 | struct devlink_dpipe_table *table; | |
2eb51c75 MB |
3776 | list_for_each_entry_rcu(table, dpipe_tables, list, |
3777 | lockdep_is_held(&devlink->lock)) { | |
1555d204 AS |
3778 | if (!strcmp(table->name, table_name)) |
3779 | return table; | |
3780 | } | |
3781 | return NULL; | |
3782 | } | |
3783 | ||
3784 | int devlink_dpipe_entry_ctx_prepare(struct devlink_dpipe_dump_ctx *dump_ctx) | |
3785 | { | |
3786 | struct devlink *devlink; | |
3787 | int err; | |
3788 | ||
3789 | err = devlink_dpipe_send_and_alloc_skb(&dump_ctx->skb, | |
3790 | dump_ctx->info); | |
3791 | if (err) | |
3792 | return err; | |
3793 | ||
3794 | dump_ctx->hdr = genlmsg_put(dump_ctx->skb, | |
3795 | dump_ctx->info->snd_portid, | |
3796 | dump_ctx->info->snd_seq, | |
3797 | &devlink_nl_family, NLM_F_MULTI, | |
3798 | dump_ctx->cmd); | |
3799 | if (!dump_ctx->hdr) | |
3800 | goto nla_put_failure; | |
3801 | ||
3802 | devlink = dump_ctx->info->user_ptr[0]; | |
3803 | if (devlink_nl_put_handle(dump_ctx->skb, devlink)) | |
3804 | goto nla_put_failure; | |
ae0be8de MK |
3805 | dump_ctx->nest = nla_nest_start_noflag(dump_ctx->skb, |
3806 | DEVLINK_ATTR_DPIPE_ENTRIES); | |
1555d204 AS |
3807 | if (!dump_ctx->nest) |
3808 | goto nla_put_failure; | |
3809 | return 0; | |
3810 | ||
3811 | nla_put_failure: | |
1555d204 AS |
3812 | nlmsg_free(dump_ctx->skb); |
3813 | return -EMSGSIZE; | |
3814 | } | |
3815 | EXPORT_SYMBOL_GPL(devlink_dpipe_entry_ctx_prepare); | |
3816 | ||
3817 | int devlink_dpipe_entry_ctx_append(struct devlink_dpipe_dump_ctx *dump_ctx, | |
3818 | struct devlink_dpipe_entry *entry) | |
3819 | { | |
3820 | return devlink_dpipe_entry_put(dump_ctx->skb, entry); | |
3821 | } | |
3822 | EXPORT_SYMBOL_GPL(devlink_dpipe_entry_ctx_append); | |
3823 | ||
3824 | int devlink_dpipe_entry_ctx_close(struct devlink_dpipe_dump_ctx *dump_ctx) | |
3825 | { | |
3826 | nla_nest_end(dump_ctx->skb, dump_ctx->nest); | |
3827 | genlmsg_end(dump_ctx->skb, dump_ctx->hdr); | |
3828 | return 0; | |
3829 | } | |
3830 | EXPORT_SYMBOL_GPL(devlink_dpipe_entry_ctx_close); | |
3831 | ||
35807324 AS |
3832 | void devlink_dpipe_entry_clear(struct devlink_dpipe_entry *entry) |
3833 | ||
3834 | { | |
3835 | unsigned int value_count, value_index; | |
3836 | struct devlink_dpipe_value *value; | |
3837 | ||
3838 | value = entry->action_values; | |
3839 | value_count = entry->action_values_count; | |
3840 | for (value_index = 0; value_index < value_count; value_index++) { | |
3841 | kfree(value[value_index].value); | |
3842 | kfree(value[value_index].mask); | |
3843 | } | |
3844 | ||
3845 | value = entry->match_values; | |
3846 | value_count = entry->match_values_count; | |
3847 | for (value_index = 0; value_index < value_count; value_index++) { | |
3848 | kfree(value[value_index].value); | |
3849 | kfree(value[value_index].mask); | |
3850 | } | |
3851 | } | |
c52ef04d | 3852 | EXPORT_SYMBOL_GPL(devlink_dpipe_entry_clear); |
35807324 | 3853 | |
1555d204 AS |
3854 | static int devlink_dpipe_entries_fill(struct genl_info *info, |
3855 | enum devlink_command cmd, int flags, | |
3856 | struct devlink_dpipe_table *table) | |
3857 | { | |
3858 | struct devlink_dpipe_dump_ctx dump_ctx; | |
3859 | struct nlmsghdr *nlh; | |
3860 | int err; | |
3861 | ||
3862 | dump_ctx.skb = NULL; | |
3863 | dump_ctx.cmd = cmd; | |
3864 | dump_ctx.info = info; | |
3865 | ||
3866 | err = table->table_ops->entries_dump(table->priv, | |
3867 | table->counters_enabled, | |
3868 | &dump_ctx); | |
3869 | if (err) | |
7fe4d6dc | 3870 | return err; |
1555d204 AS |
3871 | |
3872 | send_done: | |
3873 | nlh = nlmsg_put(dump_ctx.skb, info->snd_portid, info->snd_seq, | |
3874 | NLMSG_DONE, 0, flags | NLM_F_MULTI); | |
3875 | if (!nlh) { | |
3876 | err = devlink_dpipe_send_and_alloc_skb(&dump_ctx.skb, info); | |
3877 | if (err) | |
7fe4d6dc | 3878 | return err; |
1555d204 AS |
3879 | goto send_done; |
3880 | } | |
3881 | return genlmsg_reply(dump_ctx.skb, info); | |
1555d204 AS |
3882 | } |
3883 | ||
3884 | static int devlink_nl_cmd_dpipe_entries_get(struct sk_buff *skb, | |
3885 | struct genl_info *info) | |
3886 | { | |
3887 | struct devlink *devlink = info->user_ptr[0]; | |
3888 | struct devlink_dpipe_table *table; | |
3889 | const char *table_name; | |
3890 | ||
3891 | if (!info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME]) | |
3892 | return -EINVAL; | |
3893 | ||
3894 | table_name = nla_data(info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME]); | |
3895 | table = devlink_dpipe_table_find(&devlink->dpipe_table_list, | |
2eb51c75 | 3896 | table_name, devlink); |
1555d204 AS |
3897 | if (!table) |
3898 | return -EINVAL; | |
3899 | ||
3900 | if (!table->table_ops->entries_dump) | |
3901 | return -EINVAL; | |
3902 | ||
3903 | return devlink_dpipe_entries_fill(info, DEVLINK_CMD_DPIPE_ENTRIES_GET, | |
3904 | 0, table); | |
3905 | } | |
3906 | ||
3907 | static int devlink_dpipe_fields_put(struct sk_buff *skb, | |
3908 | const struct devlink_dpipe_header *header) | |
3909 | { | |
3910 | struct devlink_dpipe_field *field; | |
3911 | struct nlattr *field_attr; | |
3912 | int i; | |
3913 | ||
3914 | for (i = 0; i < header->fields_count; i++) { | |
3915 | field = &header->fields[i]; | |
ae0be8de MK |
3916 | field_attr = nla_nest_start_noflag(skb, |
3917 | DEVLINK_ATTR_DPIPE_FIELD); | |
1555d204 AS |
3918 | if (!field_attr) |
3919 | return -EMSGSIZE; | |
3920 | if (nla_put_string(skb, DEVLINK_ATTR_DPIPE_FIELD_NAME, field->name) || | |
3921 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_ID, field->id) || | |
3922 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_BITWIDTH, field->bitwidth) || | |
3923 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_MAPPING_TYPE, field->mapping_type)) | |
3924 | goto nla_put_failure; | |
3925 | nla_nest_end(skb, field_attr); | |
3926 | } | |
3927 | return 0; | |
3928 | ||
3929 | nla_put_failure: | |
3930 | nla_nest_cancel(skb, field_attr); | |
3931 | return -EMSGSIZE; | |
3932 | } | |
3933 | ||
3934 | static int devlink_dpipe_header_put(struct sk_buff *skb, | |
3935 | struct devlink_dpipe_header *header) | |
3936 | { | |
3937 | struct nlattr *fields_attr, *header_attr; | |
3938 | int err; | |
3939 | ||
ae0be8de | 3940 | header_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_HEADER); |
cb6bf9cf | 3941 | if (!header_attr) |
1555d204 AS |
3942 | return -EMSGSIZE; |
3943 | ||
3944 | if (nla_put_string(skb, DEVLINK_ATTR_DPIPE_HEADER_NAME, header->name) || | |
3945 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_ID, header->id) || | |
3946 | nla_put_u8(skb, DEVLINK_ATTR_DPIPE_HEADER_GLOBAL, header->global)) | |
3947 | goto nla_put_failure; | |
3948 | ||
ae0be8de MK |
3949 | fields_attr = nla_nest_start_noflag(skb, |
3950 | DEVLINK_ATTR_DPIPE_HEADER_FIELDS); | |
1555d204 AS |
3951 | if (!fields_attr) |
3952 | goto nla_put_failure; | |
3953 | ||
3954 | err = devlink_dpipe_fields_put(skb, header); | |
3955 | if (err) { | |
3956 | nla_nest_cancel(skb, fields_attr); | |
3957 | goto nla_put_failure; | |
3958 | } | |
3959 | nla_nest_end(skb, fields_attr); | |
3960 | nla_nest_end(skb, header_attr); | |
3961 | return 0; | |
3962 | ||
3963 | nla_put_failure: | |
3964 | err = -EMSGSIZE; | |
3965 | nla_nest_cancel(skb, header_attr); | |
3966 | return err; | |
3967 | } | |
3968 | ||
3969 | static int devlink_dpipe_headers_fill(struct genl_info *info, | |
3970 | enum devlink_command cmd, int flags, | |
3971 | struct devlink_dpipe_headers * | |
3972 | dpipe_headers) | |
3973 | { | |
3974 | struct devlink *devlink = info->user_ptr[0]; | |
3975 | struct nlattr *headers_attr; | |
3976 | struct sk_buff *skb = NULL; | |
3977 | struct nlmsghdr *nlh; | |
3978 | void *hdr; | |
3979 | int i, j; | |
3980 | int err; | |
3981 | ||
3982 | i = 0; | |
3983 | start_again: | |
3984 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); | |
3985 | if (err) | |
3986 | return err; | |
3987 | ||
3988 | hdr = genlmsg_put(skb, info->snd_portid, info->snd_seq, | |
3989 | &devlink_nl_family, NLM_F_MULTI, cmd); | |
6044bd4a HY |
3990 | if (!hdr) { |
3991 | nlmsg_free(skb); | |
1555d204 | 3992 | return -EMSGSIZE; |
6044bd4a | 3993 | } |
1555d204 AS |
3994 | |
3995 | if (devlink_nl_put_handle(skb, devlink)) | |
3996 | goto nla_put_failure; | |
ae0be8de | 3997 | headers_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_HEADERS); |
1555d204 AS |
3998 | if (!headers_attr) |
3999 | goto nla_put_failure; | |
4000 | ||
4001 | j = 0; | |
4002 | for (; i < dpipe_headers->headers_count; i++) { | |
4003 | err = devlink_dpipe_header_put(skb, dpipe_headers->headers[i]); | |
4004 | if (err) { | |
4005 | if (!j) | |
4006 | goto err_table_put; | |
4007 | break; | |
4008 | } | |
4009 | j++; | |
4010 | } | |
4011 | nla_nest_end(skb, headers_attr); | |
4012 | genlmsg_end(skb, hdr); | |
4013 | if (i != dpipe_headers->headers_count) | |
4014 | goto start_again; | |
4015 | ||
4016 | send_done: | |
4017 | nlh = nlmsg_put(skb, info->snd_portid, info->snd_seq, | |
4018 | NLMSG_DONE, 0, flags | NLM_F_MULTI); | |
4019 | if (!nlh) { | |
4020 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); | |
4021 | if (err) | |
7fe4d6dc | 4022 | return err; |
1555d204 AS |
4023 | goto send_done; |
4024 | } | |
4025 | return genlmsg_reply(skb, info); | |
4026 | ||
4027 | nla_put_failure: | |
4028 | err = -EMSGSIZE; | |
4029 | err_table_put: | |
1555d204 AS |
4030 | nlmsg_free(skb); |
4031 | return err; | |
4032 | } | |
4033 | ||
4034 | static int devlink_nl_cmd_dpipe_headers_get(struct sk_buff *skb, | |
4035 | struct genl_info *info) | |
4036 | { | |
4037 | struct devlink *devlink = info->user_ptr[0]; | |
4038 | ||
4039 | if (!devlink->dpipe_headers) | |
4040 | return -EOPNOTSUPP; | |
4041 | return devlink_dpipe_headers_fill(info, DEVLINK_CMD_DPIPE_HEADERS_GET, | |
4042 | 0, devlink->dpipe_headers); | |
4043 | } | |
4044 | ||
4045 | static int devlink_dpipe_table_counters_set(struct devlink *devlink, | |
4046 | const char *table_name, | |
4047 | bool enable) | |
4048 | { | |
4049 | struct devlink_dpipe_table *table; | |
4050 | ||
4051 | table = devlink_dpipe_table_find(&devlink->dpipe_table_list, | |
2eb51c75 | 4052 | table_name, devlink); |
1555d204 AS |
4053 | if (!table) |
4054 | return -EINVAL; | |
4055 | ||
4056 | if (table->counter_control_extern) | |
4057 | return -EOPNOTSUPP; | |
4058 | ||
4059 | if (!(table->counters_enabled ^ enable)) | |
4060 | return 0; | |
4061 | ||
4062 | table->counters_enabled = enable; | |
4063 | if (table->table_ops->counters_set_update) | |
4064 | table->table_ops->counters_set_update(table->priv, enable); | |
4065 | return 0; | |
4066 | } | |
4067 | ||
4068 | static int devlink_nl_cmd_dpipe_table_counters_set(struct sk_buff *skb, | |
4069 | struct genl_info *info) | |
4070 | { | |
4071 | struct devlink *devlink = info->user_ptr[0]; | |
4072 | const char *table_name; | |
4073 | bool counters_enable; | |
4074 | ||
4075 | if (!info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME] || | |
4076 | !info->attrs[DEVLINK_ATTR_DPIPE_TABLE_COUNTERS_ENABLED]) | |
4077 | return -EINVAL; | |
4078 | ||
4079 | table_name = nla_data(info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME]); | |
4080 | counters_enable = !!nla_get_u8(info->attrs[DEVLINK_ATTR_DPIPE_TABLE_COUNTERS_ENABLED]); | |
4081 | ||
4082 | return devlink_dpipe_table_counters_set(devlink, table_name, | |
4083 | counters_enable); | |
08f4b591 OG |
4084 | } |
4085 | ||
43dd7512 | 4086 | static struct devlink_resource * |
d9f9b9a4 AS |
4087 | devlink_resource_find(struct devlink *devlink, |
4088 | struct devlink_resource *resource, u64 resource_id) | |
4089 | { | |
4090 | struct list_head *resource_list; | |
4091 | ||
4092 | if (resource) | |
4093 | resource_list = &resource->resource_list; | |
4094 | else | |
4095 | resource_list = &devlink->resource_list; | |
4096 | ||
4097 | list_for_each_entry(resource, resource_list, list) { | |
4098 | struct devlink_resource *child_resource; | |
4099 | ||
4100 | if (resource->id == resource_id) | |
4101 | return resource; | |
4102 | ||
4103 | child_resource = devlink_resource_find(devlink, resource, | |
4104 | resource_id); | |
4105 | if (child_resource) | |
4106 | return child_resource; | |
4107 | } | |
4108 | return NULL; | |
4109 | } | |
4110 | ||
43dd7512 WY |
4111 | static void |
4112 | devlink_resource_validate_children(struct devlink_resource *resource) | |
d9f9b9a4 AS |
4113 | { |
4114 | struct devlink_resource *child_resource; | |
4115 | bool size_valid = true; | |
4116 | u64 parts_size = 0; | |
4117 | ||
4118 | if (list_empty(&resource->resource_list)) | |
4119 | goto out; | |
4120 | ||
4121 | list_for_each_entry(child_resource, &resource->resource_list, list) | |
4122 | parts_size += child_resource->size_new; | |
4123 | ||
b9d17175 | 4124 | if (parts_size > resource->size_new) |
d9f9b9a4 AS |
4125 | size_valid = false; |
4126 | out: | |
4127 | resource->size_valid = size_valid; | |
4128 | } | |
4129 | ||
cc944ead AS |
4130 | static int |
4131 | devlink_resource_validate_size(struct devlink_resource *resource, u64 size, | |
4132 | struct netlink_ext_ack *extack) | |
4133 | { | |
4134 | u64 reminder; | |
4135 | int err = 0; | |
4136 | ||
0f3e9c97 | 4137 | if (size > resource->size_params.size_max) { |
cc944ead AS |
4138 | NL_SET_ERR_MSG_MOD(extack, "Size larger than maximum"); |
4139 | err = -EINVAL; | |
4140 | } | |
4141 | ||
0f3e9c97 | 4142 | if (size < resource->size_params.size_min) { |
cc944ead AS |
4143 | NL_SET_ERR_MSG_MOD(extack, "Size smaller than minimum"); |
4144 | err = -EINVAL; | |
4145 | } | |
4146 | ||
0f3e9c97 | 4147 | div64_u64_rem(size, resource->size_params.size_granularity, &reminder); |
cc944ead AS |
4148 | if (reminder) { |
4149 | NL_SET_ERR_MSG_MOD(extack, "Wrong granularity"); | |
4150 | err = -EINVAL; | |
4151 | } | |
4152 | ||
4153 | return err; | |
4154 | } | |
4155 | ||
d9f9b9a4 AS |
4156 | static int devlink_nl_cmd_resource_set(struct sk_buff *skb, |
4157 | struct genl_info *info) | |
4158 | { | |
4159 | struct devlink *devlink = info->user_ptr[0]; | |
4160 | struct devlink_resource *resource; | |
4161 | u64 resource_id; | |
4162 | u64 size; | |
4163 | int err; | |
4164 | ||
4165 | if (!info->attrs[DEVLINK_ATTR_RESOURCE_ID] || | |
4166 | !info->attrs[DEVLINK_ATTR_RESOURCE_SIZE]) | |
4167 | return -EINVAL; | |
4168 | resource_id = nla_get_u64(info->attrs[DEVLINK_ATTR_RESOURCE_ID]); | |
4169 | ||
4170 | resource = devlink_resource_find(devlink, NULL, resource_id); | |
4171 | if (!resource) | |
4172 | return -EINVAL; | |
4173 | ||
d9f9b9a4 | 4174 | size = nla_get_u64(info->attrs[DEVLINK_ATTR_RESOURCE_SIZE]); |
cc944ead | 4175 | err = devlink_resource_validate_size(resource, size, info->extack); |
d9f9b9a4 AS |
4176 | if (err) |
4177 | return err; | |
4178 | ||
4179 | resource->size_new = size; | |
4180 | devlink_resource_validate_children(resource); | |
4181 | if (resource->parent) | |
4182 | devlink_resource_validate_children(resource->parent); | |
4183 | return 0; | |
4184 | } | |
4185 | ||
3d18e4f1 | 4186 | static int |
d9f9b9a4 AS |
4187 | devlink_resource_size_params_put(struct devlink_resource *resource, |
4188 | struct sk_buff *skb) | |
4189 | { | |
4190 | struct devlink_resource_size_params *size_params; | |
4191 | ||
77d27096 | 4192 | size_params = &resource->size_params; |
3d18e4f1 AS |
4193 | if (nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE_GRAN, |
4194 | size_params->size_granularity, DEVLINK_ATTR_PAD) || | |
4195 | nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE_MAX, | |
4196 | size_params->size_max, DEVLINK_ATTR_PAD) || | |
4197 | nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE_MIN, | |
4198 | size_params->size_min, DEVLINK_ATTR_PAD) || | |
4199 | nla_put_u8(skb, DEVLINK_ATTR_RESOURCE_UNIT, size_params->unit)) | |
4200 | return -EMSGSIZE; | |
4201 | return 0; | |
d9f9b9a4 AS |
4202 | } |
4203 | ||
fc56be47 JP |
4204 | static int devlink_resource_occ_put(struct devlink_resource *resource, |
4205 | struct sk_buff *skb) | |
4206 | { | |
4207 | if (!resource->occ_get) | |
4208 | return 0; | |
4209 | return nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_OCC, | |
4210 | resource->occ_get(resource->occ_get_priv), | |
4211 | DEVLINK_ATTR_PAD); | |
4212 | } | |
4213 | ||
d9f9b9a4 AS |
4214 | static int devlink_resource_put(struct devlink *devlink, struct sk_buff *skb, |
4215 | struct devlink_resource *resource) | |
4216 | { | |
4217 | struct devlink_resource *child_resource; | |
4218 | struct nlattr *child_resource_attr; | |
4219 | struct nlattr *resource_attr; | |
4220 | ||
ae0be8de | 4221 | resource_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_RESOURCE); |
d9f9b9a4 AS |
4222 | if (!resource_attr) |
4223 | return -EMSGSIZE; | |
4224 | ||
4225 | if (nla_put_string(skb, DEVLINK_ATTR_RESOURCE_NAME, resource->name) || | |
4226 | nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE, resource->size, | |
4227 | DEVLINK_ATTR_PAD) || | |
4228 | nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_ID, resource->id, | |
4229 | DEVLINK_ATTR_PAD)) | |
4230 | goto nla_put_failure; | |
4231 | if (resource->size != resource->size_new) | |
4232 | nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE_NEW, | |
4233 | resource->size_new, DEVLINK_ATTR_PAD); | |
fc56be47 JP |
4234 | if (devlink_resource_occ_put(resource, skb)) |
4235 | goto nla_put_failure; | |
3d18e4f1 AS |
4236 | if (devlink_resource_size_params_put(resource, skb)) |
4237 | goto nla_put_failure; | |
d9f9b9a4 AS |
4238 | if (list_empty(&resource->resource_list)) |
4239 | goto out; | |
4240 | ||
4241 | if (nla_put_u8(skb, DEVLINK_ATTR_RESOURCE_SIZE_VALID, | |
4242 | resource->size_valid)) | |
4243 | goto nla_put_failure; | |
4244 | ||
ae0be8de MK |
4245 | child_resource_attr = nla_nest_start_noflag(skb, |
4246 | DEVLINK_ATTR_RESOURCE_LIST); | |
d9f9b9a4 AS |
4247 | if (!child_resource_attr) |
4248 | goto nla_put_failure; | |
4249 | ||
4250 | list_for_each_entry(child_resource, &resource->resource_list, list) { | |
4251 | if (devlink_resource_put(devlink, skb, child_resource)) | |
4252 | goto resource_put_failure; | |
4253 | } | |
4254 | ||
4255 | nla_nest_end(skb, child_resource_attr); | |
4256 | out: | |
4257 | nla_nest_end(skb, resource_attr); | |
4258 | return 0; | |
4259 | ||
4260 | resource_put_failure: | |
4261 | nla_nest_cancel(skb, child_resource_attr); | |
4262 | nla_put_failure: | |
4263 | nla_nest_cancel(skb, resource_attr); | |
4264 | return -EMSGSIZE; | |
4265 | } | |
4266 | ||
4267 | static int devlink_resource_fill(struct genl_info *info, | |
4268 | enum devlink_command cmd, int flags) | |
4269 | { | |
4270 | struct devlink *devlink = info->user_ptr[0]; | |
4271 | struct devlink_resource *resource; | |
4272 | struct nlattr *resources_attr; | |
4273 | struct sk_buff *skb = NULL; | |
4274 | struct nlmsghdr *nlh; | |
4275 | bool incomplete; | |
4276 | void *hdr; | |
4277 | int i; | |
4278 | int err; | |
4279 | ||
4280 | resource = list_first_entry(&devlink->resource_list, | |
4281 | struct devlink_resource, list); | |
4282 | start_again: | |
4283 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); | |
4284 | if (err) | |
4285 | return err; | |
4286 | ||
4287 | hdr = genlmsg_put(skb, info->snd_portid, info->snd_seq, | |
4288 | &devlink_nl_family, NLM_F_MULTI, cmd); | |
4289 | if (!hdr) { | |
4290 | nlmsg_free(skb); | |
4291 | return -EMSGSIZE; | |
4292 | } | |
4293 | ||
4294 | if (devlink_nl_put_handle(skb, devlink)) | |
4295 | goto nla_put_failure; | |
4296 | ||
ae0be8de MK |
4297 | resources_attr = nla_nest_start_noflag(skb, |
4298 | DEVLINK_ATTR_RESOURCE_LIST); | |
d9f9b9a4 AS |
4299 | if (!resources_attr) |
4300 | goto nla_put_failure; | |
4301 | ||
4302 | incomplete = false; | |
4303 | i = 0; | |
4304 | list_for_each_entry_from(resource, &devlink->resource_list, list) { | |
4305 | err = devlink_resource_put(devlink, skb, resource); | |
4306 | if (err) { | |
4307 | if (!i) | |
4308 | goto err_resource_put; | |
4309 | incomplete = true; | |
4310 | break; | |
4311 | } | |
4312 | i++; | |
4313 | } | |
4314 | nla_nest_end(skb, resources_attr); | |
4315 | genlmsg_end(skb, hdr); | |
4316 | if (incomplete) | |
4317 | goto start_again; | |
4318 | send_done: | |
4319 | nlh = nlmsg_put(skb, info->snd_portid, info->snd_seq, | |
4320 | NLMSG_DONE, 0, flags | NLM_F_MULTI); | |
4321 | if (!nlh) { | |
4322 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); | |
4323 | if (err) | |
83fe9a96 | 4324 | return err; |
d9f9b9a4 AS |
4325 | goto send_done; |
4326 | } | |
4327 | return genlmsg_reply(skb, info); | |
4328 | ||
4329 | nla_put_failure: | |
4330 | err = -EMSGSIZE; | |
4331 | err_resource_put: | |
d9f9b9a4 AS |
4332 | nlmsg_free(skb); |
4333 | return err; | |
4334 | } | |
4335 | ||
4336 | static int devlink_nl_cmd_resource_dump(struct sk_buff *skb, | |
4337 | struct genl_info *info) | |
4338 | { | |
4339 | struct devlink *devlink = info->user_ptr[0]; | |
4340 | ||
4341 | if (list_empty(&devlink->resource_list)) | |
4342 | return -EOPNOTSUPP; | |
4343 | ||
4344 | return devlink_resource_fill(info, DEVLINK_CMD_RESOURCE_DUMP, 0); | |
4345 | } | |
4346 | ||
2d8dc5bb AS |
4347 | static int |
4348 | devlink_resources_validate(struct devlink *devlink, | |
4349 | struct devlink_resource *resource, | |
4350 | struct genl_info *info) | |
4351 | { | |
4352 | struct list_head *resource_list; | |
4353 | int err = 0; | |
4354 | ||
4355 | if (resource) | |
4356 | resource_list = &resource->resource_list; | |
4357 | else | |
4358 | resource_list = &devlink->resource_list; | |
4359 | ||
4360 | list_for_each_entry(resource, resource_list, list) { | |
4361 | if (!resource->size_valid) | |
4362 | return -EINVAL; | |
4363 | err = devlink_resources_validate(devlink, resource, info); | |
4364 | if (err) | |
4365 | return err; | |
4366 | } | |
4367 | return err; | |
4368 | } | |
4369 | ||
070c63f2 JP |
4370 | static struct net *devlink_netns_get(struct sk_buff *skb, |
4371 | struct genl_info *info) | |
4372 | { | |
4373 | struct nlattr *netns_pid_attr = info->attrs[DEVLINK_ATTR_NETNS_PID]; | |
4374 | struct nlattr *netns_fd_attr = info->attrs[DEVLINK_ATTR_NETNS_FD]; | |
4375 | struct nlattr *netns_id_attr = info->attrs[DEVLINK_ATTR_NETNS_ID]; | |
4376 | struct net *net; | |
4377 | ||
4378 | if (!!netns_pid_attr + !!netns_fd_attr + !!netns_id_attr > 1) { | |
054eae82 | 4379 | NL_SET_ERR_MSG_MOD(info->extack, "multiple netns identifying attributes specified"); |
070c63f2 JP |
4380 | return ERR_PTR(-EINVAL); |
4381 | } | |
4382 | ||
4383 | if (netns_pid_attr) { | |
4384 | net = get_net_ns_by_pid(nla_get_u32(netns_pid_attr)); | |
4385 | } else if (netns_fd_attr) { | |
4386 | net = get_net_ns_by_fd(nla_get_u32(netns_fd_attr)); | |
4387 | } else if (netns_id_attr) { | |
4388 | net = get_net_ns_by_id(sock_net(skb->sk), | |
4389 | nla_get_u32(netns_id_attr)); | |
4390 | if (!net) | |
4391 | net = ERR_PTR(-EINVAL); | |
4392 | } else { | |
4393 | WARN_ON(1); | |
4394 | net = ERR_PTR(-EINVAL); | |
4395 | } | |
4396 | if (IS_ERR(net)) { | |
054eae82 | 4397 | NL_SET_ERR_MSG_MOD(info->extack, "Unknown network namespace"); |
070c63f2 JP |
4398 | return ERR_PTR(-EINVAL); |
4399 | } | |
4400 | if (!netlink_ns_capable(skb, net->user_ns, CAP_NET_ADMIN)) { | |
4401 | put_net(net); | |
4402 | return ERR_PTR(-EPERM); | |
4403 | } | |
4404 | return net; | |
4405 | } | |
4406 | ||
4407 | static void devlink_param_notify(struct devlink *devlink, | |
4408 | unsigned int port_index, | |
4409 | struct devlink_param_item *param_item, | |
4410 | enum devlink_command cmd); | |
4411 | ||
05a7f4a8 LR |
4412 | static void devlink_ns_change_notify(struct devlink *devlink, |
4413 | struct net *dest_net, struct net *curr_net, | |
4414 | bool new) | |
070c63f2 JP |
4415 | { |
4416 | struct devlink_param_item *param_item; | |
05a7f4a8 | 4417 | enum devlink_command cmd; |
070c63f2 JP |
4418 | |
4419 | /* Userspace needs to be notified about devlink objects | |
4420 | * removed from original and entering new network namespace. | |
4421 | * The rest of the devlink objects are re-created during | |
4422 | * reload process so the notifications are generated separatelly. | |
4423 | */ | |
4424 | ||
05a7f4a8 LR |
4425 | if (!dest_net || net_eq(dest_net, curr_net)) |
4426 | return; | |
070c63f2 | 4427 | |
05a7f4a8 LR |
4428 | if (new) |
4429 | devlink_notify(devlink, DEVLINK_CMD_NEW); | |
070c63f2 | 4430 | |
05a7f4a8 | 4431 | cmd = new ? DEVLINK_CMD_PARAM_NEW : DEVLINK_CMD_PARAM_DEL; |
070c63f2 | 4432 | list_for_each_entry(param_item, &devlink->param_list, list) |
05a7f4a8 LR |
4433 | devlink_param_notify(devlink, 0, param_item, cmd); |
4434 | ||
4435 | if (!new) | |
4436 | devlink_notify(devlink, DEVLINK_CMD_DEL); | |
070c63f2 JP |
4437 | } |
4438 | ||
69d56e0e | 4439 | static bool devlink_reload_supported(const struct devlink_ops *ops) |
97691069 | 4440 | { |
69d56e0e | 4441 | return ops->reload_down && ops->reload_up; |
97691069 JP |
4442 | } |
4443 | ||
2670ac26 JP |
4444 | static void devlink_reload_failed_set(struct devlink *devlink, |
4445 | bool reload_failed) | |
4446 | { | |
4447 | if (devlink->reload_failed == reload_failed) | |
4448 | return; | |
4449 | devlink->reload_failed = reload_failed; | |
4450 | devlink_notify(devlink, DEVLINK_CMD_NEW); | |
4451 | } | |
4452 | ||
4453 | bool devlink_is_reload_failed(const struct devlink *devlink) | |
4454 | { | |
4455 | return devlink->reload_failed; | |
4456 | } | |
4457 | EXPORT_SYMBOL_GPL(devlink_is_reload_failed); | |
4458 | ||
a254c264 MS |
4459 | static void |
4460 | __devlink_reload_stats_update(struct devlink *devlink, u32 *reload_stats, | |
4461 | enum devlink_reload_limit limit, u32 actions_performed) | |
4462 | { | |
4463 | unsigned long actions = actions_performed; | |
4464 | int stat_idx; | |
4465 | int action; | |
4466 | ||
4467 | for_each_set_bit(action, &actions, __DEVLINK_RELOAD_ACTION_MAX) { | |
4468 | stat_idx = limit * __DEVLINK_RELOAD_ACTION_MAX + action; | |
4469 | reload_stats[stat_idx]++; | |
4470 | } | |
4471 | devlink_notify(devlink, DEVLINK_CMD_NEW); | |
4472 | } | |
4473 | ||
4474 | static void | |
4475 | devlink_reload_stats_update(struct devlink *devlink, enum devlink_reload_limit limit, | |
4476 | u32 actions_performed) | |
4477 | { | |
4478 | __devlink_reload_stats_update(devlink, devlink->stats.reload_stats, limit, | |
4479 | actions_performed); | |
4480 | } | |
4481 | ||
77069ba2 MS |
4482 | /** |
4483 | * devlink_remote_reload_actions_performed - Update devlink on reload actions | |
4484 | * performed which are not a direct result of devlink reload call. | |
4485 | * | |
4486 | * This should be called by a driver after performing reload actions in case it was not | |
4487 | * a result of devlink reload call. For example fw_activate was performed as a result | |
4488 | * of devlink reload triggered fw_activate on another host. | |
4489 | * The motivation for this function is to keep data on reload actions performed on this | |
4490 | * function whether it was done due to direct devlink reload call or not. | |
4491 | * | |
4492 | * @devlink: devlink | |
4493 | * @limit: reload limit | |
4494 | * @actions_performed: bitmask of actions performed | |
4495 | */ | |
4496 | void devlink_remote_reload_actions_performed(struct devlink *devlink, | |
4497 | enum devlink_reload_limit limit, | |
4498 | u32 actions_performed) | |
4499 | { | |
4500 | if (WARN_ON(!actions_performed || | |
4501 | actions_performed & BIT(DEVLINK_RELOAD_ACTION_UNSPEC) || | |
4502 | actions_performed >= BIT(__DEVLINK_RELOAD_ACTION_MAX) || | |
4503 | limit > DEVLINK_RELOAD_LIMIT_MAX)) | |
4504 | return; | |
4505 | ||
4506 | __devlink_reload_stats_update(devlink, devlink->stats.remote_reload_stats, limit, | |
4507 | actions_performed); | |
4508 | } | |
4509 | EXPORT_SYMBOL_GPL(devlink_remote_reload_actions_performed); | |
4510 | ||
070c63f2 | 4511 | static int devlink_reload(struct devlink *devlink, struct net *dest_net, |
dc64cc7c MS |
4512 | enum devlink_reload_action action, enum devlink_reload_limit limit, |
4513 | u32 *actions_performed, struct netlink_ext_ack *extack) | |
070c63f2 | 4514 | { |
77069ba2 | 4515 | u32 remote_reload_stats[DEVLINK_RELOAD_STATS_ARRAY_SIZE]; |
05a7f4a8 | 4516 | struct net *curr_net; |
070c63f2 JP |
4517 | int err; |
4518 | ||
77069ba2 MS |
4519 | memcpy(remote_reload_stats, devlink->stats.remote_reload_stats, |
4520 | sizeof(remote_reload_stats)); | |
05a7f4a8 LR |
4521 | |
4522 | curr_net = devlink_net(devlink); | |
4523 | devlink_ns_change_notify(devlink, dest_net, curr_net, false); | |
dc64cc7c | 4524 | err = devlink->ops->reload_down(devlink, !!dest_net, action, limit, extack); |
070c63f2 JP |
4525 | if (err) |
4526 | return err; | |
4527 | ||
05a7f4a8 | 4528 | if (dest_net && !net_eq(dest_net, curr_net)) |
26713455 | 4529 | write_pnet(&devlink->_net, dest_net); |
070c63f2 | 4530 | |
dc64cc7c | 4531 | err = devlink->ops->reload_up(devlink, action, limit, actions_performed, extack); |
070c63f2 | 4532 | devlink_reload_failed_set(devlink, !!err); |
ccdf0721 MS |
4533 | if (err) |
4534 | return err; | |
4535 | ||
05a7f4a8 | 4536 | devlink_ns_change_notify(devlink, dest_net, curr_net, true); |
ccdf0721 | 4537 | WARN_ON(!(*actions_performed & BIT(action))); |
77069ba2 MS |
4538 | /* Catch driver on updating the remote action within devlink reload */ |
4539 | WARN_ON(memcmp(remote_reload_stats, devlink->stats.remote_reload_stats, | |
4540 | sizeof(remote_reload_stats))); | |
a254c264 | 4541 | devlink_reload_stats_update(devlink, limit, *actions_performed); |
ccdf0721 MS |
4542 | return 0; |
4543 | } | |
4544 | ||
4545 | static int | |
4546 | devlink_nl_reload_actions_performed_snd(struct devlink *devlink, u32 actions_performed, | |
4547 | enum devlink_command cmd, struct genl_info *info) | |
4548 | { | |
4549 | struct sk_buff *msg; | |
4550 | void *hdr; | |
4551 | ||
4552 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
4553 | if (!msg) | |
4554 | return -ENOMEM; | |
4555 | ||
4556 | hdr = genlmsg_put(msg, info->snd_portid, info->snd_seq, &devlink_nl_family, 0, cmd); | |
4557 | if (!hdr) | |
4558 | goto free_msg; | |
4559 | ||
4560 | if (devlink_nl_put_handle(msg, devlink)) | |
4561 | goto nla_put_failure; | |
4562 | ||
4563 | if (nla_put_bitfield32(msg, DEVLINK_ATTR_RELOAD_ACTIONS_PERFORMED, actions_performed, | |
4564 | actions_performed)) | |
4565 | goto nla_put_failure; | |
4566 | genlmsg_end(msg, hdr); | |
4567 | ||
4568 | return genlmsg_reply(msg, info); | |
4569 | ||
4570 | nla_put_failure: | |
4571 | genlmsg_cancel(msg, hdr); | |
4572 | free_msg: | |
4573 | nlmsg_free(msg); | |
4574 | return -EMSGSIZE; | |
070c63f2 JP |
4575 | } |
4576 | ||
2d8dc5bb AS |
4577 | static int devlink_nl_cmd_reload(struct sk_buff *skb, struct genl_info *info) |
4578 | { | |
4579 | struct devlink *devlink = info->user_ptr[0]; | |
ccdf0721 | 4580 | enum devlink_reload_action action; |
dc64cc7c | 4581 | enum devlink_reload_limit limit; |
070c63f2 | 4582 | struct net *dest_net = NULL; |
ccdf0721 | 4583 | u32 actions_performed; |
2d8dc5bb AS |
4584 | int err; |
4585 | ||
82465bec | 4586 | if (!(devlink->features & DEVLINK_F_RELOAD)) |
2d8dc5bb AS |
4587 | return -EOPNOTSUPP; |
4588 | ||
4589 | err = devlink_resources_validate(devlink, NULL, info); | |
4590 | if (err) { | |
4591 | NL_SET_ERR_MSG_MOD(info->extack, "resources size validation failed"); | |
4592 | return err; | |
4593 | } | |
070c63f2 | 4594 | |
ccdf0721 MS |
4595 | if (info->attrs[DEVLINK_ATTR_RELOAD_ACTION]) |
4596 | action = nla_get_u8(info->attrs[DEVLINK_ATTR_RELOAD_ACTION]); | |
4597 | else | |
4598 | action = DEVLINK_RELOAD_ACTION_DRIVER_REINIT; | |
4599 | ||
4600 | if (!devlink_reload_action_is_supported(devlink, action)) { | |
4601 | NL_SET_ERR_MSG_MOD(info->extack, | |
4602 | "Requested reload action is not supported by the driver"); | |
4603 | return -EOPNOTSUPP; | |
4604 | } | |
4605 | ||
dc64cc7c MS |
4606 | limit = DEVLINK_RELOAD_LIMIT_UNSPEC; |
4607 | if (info->attrs[DEVLINK_ATTR_RELOAD_LIMITS]) { | |
4608 | struct nla_bitfield32 limits; | |
4609 | u32 limits_selected; | |
4610 | ||
4611 | limits = nla_get_bitfield32(info->attrs[DEVLINK_ATTR_RELOAD_LIMITS]); | |
4612 | limits_selected = limits.value & limits.selector; | |
4613 | if (!limits_selected) { | |
4614 | NL_SET_ERR_MSG_MOD(info->extack, "Invalid limit selected"); | |
4615 | return -EINVAL; | |
4616 | } | |
4617 | for (limit = 0 ; limit <= DEVLINK_RELOAD_LIMIT_MAX ; limit++) | |
4618 | if (limits_selected & BIT(limit)) | |
4619 | break; | |
4620 | /* UAPI enables multiselection, but currently it is not used */ | |
4621 | if (limits_selected != BIT(limit)) { | |
4622 | NL_SET_ERR_MSG_MOD(info->extack, | |
4623 | "Multiselection of limit is not supported"); | |
4624 | return -EOPNOTSUPP; | |
4625 | } | |
4626 | if (!devlink_reload_limit_is_supported(devlink, limit)) { | |
4627 | NL_SET_ERR_MSG_MOD(info->extack, | |
4628 | "Requested limit is not supported by the driver"); | |
4629 | return -EOPNOTSUPP; | |
4630 | } | |
4631 | if (devlink_reload_combination_is_invalid(action, limit)) { | |
4632 | NL_SET_ERR_MSG_MOD(info->extack, | |
4633 | "Requested limit is invalid for this action"); | |
4634 | return -EINVAL; | |
4635 | } | |
4636 | } | |
4dbb0dad ED |
4637 | if (info->attrs[DEVLINK_ATTR_NETNS_PID] || |
4638 | info->attrs[DEVLINK_ATTR_NETNS_FD] || | |
4639 | info->attrs[DEVLINK_ATTR_NETNS_ID]) { | |
4640 | dest_net = devlink_netns_get(skb, info); | |
4641 | if (IS_ERR(dest_net)) | |
4642 | return PTR_ERR(dest_net); | |
4643 | } | |
4644 | ||
dc64cc7c | 4645 | err = devlink_reload(devlink, dest_net, action, limit, &actions_performed, info->extack); |
070c63f2 JP |
4646 | |
4647 | if (dest_net) | |
4648 | put_net(dest_net); | |
4649 | ||
ccdf0721 MS |
4650 | if (err) |
4651 | return err; | |
4652 | /* For backward compatibility generate reply only if attributes used by user */ | |
dc64cc7c | 4653 | if (!info->attrs[DEVLINK_ATTR_RELOAD_ACTION] && !info->attrs[DEVLINK_ATTR_RELOAD_LIMITS]) |
ccdf0721 MS |
4654 | return 0; |
4655 | ||
4656 | return devlink_nl_reload_actions_performed_snd(devlink, actions_performed, | |
4657 | DEVLINK_CMD_RELOAD, info); | |
2d8dc5bb AS |
4658 | } |
4659 | ||
191ed202 JP |
4660 | static int devlink_nl_flash_update_fill(struct sk_buff *msg, |
4661 | struct devlink *devlink, | |
4662 | enum devlink_command cmd, | |
6700acc5 | 4663 | struct devlink_flash_notify *params) |
191ed202 JP |
4664 | { |
4665 | void *hdr; | |
4666 | ||
4667 | hdr = genlmsg_put(msg, 0, 0, &devlink_nl_family, 0, cmd); | |
4668 | if (!hdr) | |
4669 | return -EMSGSIZE; | |
4670 | ||
4671 | if (devlink_nl_put_handle(msg, devlink)) | |
4672 | goto nla_put_failure; | |
4673 | ||
4674 | if (cmd != DEVLINK_CMD_FLASH_UPDATE_STATUS) | |
4675 | goto out; | |
4676 | ||
6700acc5 | 4677 | if (params->status_msg && |
191ed202 | 4678 | nla_put_string(msg, DEVLINK_ATTR_FLASH_UPDATE_STATUS_MSG, |
6700acc5 | 4679 | params->status_msg)) |
191ed202 | 4680 | goto nla_put_failure; |
6700acc5 | 4681 | if (params->component && |
191ed202 | 4682 | nla_put_string(msg, DEVLINK_ATTR_FLASH_UPDATE_COMPONENT, |
6700acc5 | 4683 | params->component)) |
191ed202 JP |
4684 | goto nla_put_failure; |
4685 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_FLASH_UPDATE_STATUS_DONE, | |
6700acc5 | 4686 | params->done, DEVLINK_ATTR_PAD)) |
191ed202 JP |
4687 | goto nla_put_failure; |
4688 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_FLASH_UPDATE_STATUS_TOTAL, | |
6700acc5 | 4689 | params->total, DEVLINK_ATTR_PAD)) |
191ed202 | 4690 | goto nla_put_failure; |
f92970c6 | 4691 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_FLASH_UPDATE_STATUS_TIMEOUT, |
6700acc5 | 4692 | params->timeout, DEVLINK_ATTR_PAD)) |
f92970c6 | 4693 | goto nla_put_failure; |
191ed202 JP |
4694 | |
4695 | out: | |
4696 | genlmsg_end(msg, hdr); | |
4697 | return 0; | |
4698 | ||
4699 | nla_put_failure: | |
4700 | genlmsg_cancel(msg, hdr); | |
4701 | return -EMSGSIZE; | |
4702 | } | |
4703 | ||
4704 | static void __devlink_flash_update_notify(struct devlink *devlink, | |
4705 | enum devlink_command cmd, | |
6700acc5 | 4706 | struct devlink_flash_notify *params) |
191ed202 JP |
4707 | { |
4708 | struct sk_buff *msg; | |
4709 | int err; | |
4710 | ||
4711 | WARN_ON(cmd != DEVLINK_CMD_FLASH_UPDATE && | |
4712 | cmd != DEVLINK_CMD_FLASH_UPDATE_END && | |
4713 | cmd != DEVLINK_CMD_FLASH_UPDATE_STATUS); | |
fec1faf2 LR |
4714 | |
4715 | if (!xa_get_mark(&devlinks, devlink->index, DEVLINK_REGISTERED)) | |
4716 | return; | |
191ed202 JP |
4717 | |
4718 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
4719 | if (!msg) | |
4720 | return; | |
4721 | ||
6700acc5 | 4722 | err = devlink_nl_flash_update_fill(msg, devlink, cmd, params); |
191ed202 JP |
4723 | if (err) |
4724 | goto out_free_msg; | |
4725 | ||
4726 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), | |
4727 | msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
4728 | return; | |
4729 | ||
4730 | out_free_msg: | |
4731 | nlmsg_free(msg); | |
4732 | } | |
4733 | ||
52cc5f3a | 4734 | static void devlink_flash_update_begin_notify(struct devlink *devlink) |
191ed202 | 4735 | { |
ed43fbac | 4736 | struct devlink_flash_notify params = {}; |
6700acc5 | 4737 | |
191ed202 JP |
4738 | __devlink_flash_update_notify(devlink, |
4739 | DEVLINK_CMD_FLASH_UPDATE, | |
6700acc5 | 4740 | ¶ms); |
191ed202 | 4741 | } |
191ed202 | 4742 | |
52cc5f3a | 4743 | static void devlink_flash_update_end_notify(struct devlink *devlink) |
191ed202 | 4744 | { |
ed43fbac | 4745 | struct devlink_flash_notify params = {}; |
6700acc5 | 4746 | |
191ed202 JP |
4747 | __devlink_flash_update_notify(devlink, |
4748 | DEVLINK_CMD_FLASH_UPDATE_END, | |
6700acc5 | 4749 | ¶ms); |
191ed202 | 4750 | } |
191ed202 JP |
4751 | |
4752 | void devlink_flash_update_status_notify(struct devlink *devlink, | |
4753 | const char *status_msg, | |
4754 | const char *component, | |
4755 | unsigned long done, | |
4756 | unsigned long total) | |
4757 | { | |
6700acc5 SN |
4758 | struct devlink_flash_notify params = { |
4759 | .status_msg = status_msg, | |
4760 | .component = component, | |
4761 | .done = done, | |
4762 | .total = total, | |
4763 | }; | |
4764 | ||
191ed202 JP |
4765 | __devlink_flash_update_notify(devlink, |
4766 | DEVLINK_CMD_FLASH_UPDATE_STATUS, | |
6700acc5 | 4767 | ¶ms); |
191ed202 JP |
4768 | } |
4769 | EXPORT_SYMBOL_GPL(devlink_flash_update_status_notify); | |
4770 | ||
f92970c6 SN |
4771 | void devlink_flash_update_timeout_notify(struct devlink *devlink, |
4772 | const char *status_msg, | |
4773 | const char *component, | |
4774 | unsigned long timeout) | |
4775 | { | |
6700acc5 SN |
4776 | struct devlink_flash_notify params = { |
4777 | .status_msg = status_msg, | |
4778 | .component = component, | |
4779 | .timeout = timeout, | |
4780 | }; | |
4781 | ||
f92970c6 SN |
4782 | __devlink_flash_update_notify(devlink, |
4783 | DEVLINK_CMD_FLASH_UPDATE_STATUS, | |
6700acc5 | 4784 | ¶ms); |
f92970c6 SN |
4785 | } |
4786 | EXPORT_SYMBOL_GPL(devlink_flash_update_timeout_notify); | |
4787 | ||
76726ccb JK |
4788 | static int devlink_nl_cmd_flash_update(struct sk_buff *skb, |
4789 | struct genl_info *info) | |
4790 | { | |
b44cfd4f | 4791 | struct nlattr *nla_component, *nla_overwrite_mask, *nla_file_name; |
bc75c054 | 4792 | struct devlink_flash_update_params params = {}; |
76726ccb | 4793 | struct devlink *devlink = info->user_ptr[0]; |
b44cfd4f | 4794 | const char *file_name; |
22ec3d23 | 4795 | u32 supported_params; |
b44cfd4f | 4796 | int ret; |
76726ccb JK |
4797 | |
4798 | if (!devlink->ops->flash_update) | |
4799 | return -EOPNOTSUPP; | |
4800 | ||
4801 | if (!info->attrs[DEVLINK_ATTR_FLASH_UPDATE_FILE_NAME]) | |
4802 | return -EINVAL; | |
22ec3d23 JK |
4803 | |
4804 | supported_params = devlink->ops->supported_flash_update_params; | |
4805 | ||
76726ccb | 4806 | nla_component = info->attrs[DEVLINK_ATTR_FLASH_UPDATE_COMPONENT]; |
22ec3d23 JK |
4807 | if (nla_component) { |
4808 | if (!(supported_params & DEVLINK_SUPPORT_FLASH_UPDATE_COMPONENT)) { | |
4809 | NL_SET_ERR_MSG_ATTR(info->extack, nla_component, | |
4810 | "component update is not supported by this device"); | |
4811 | return -EOPNOTSUPP; | |
4812 | } | |
bc75c054 | 4813 | params.component = nla_data(nla_component); |
22ec3d23 | 4814 | } |
76726ccb | 4815 | |
5d5b4128 JK |
4816 | nla_overwrite_mask = info->attrs[DEVLINK_ATTR_FLASH_UPDATE_OVERWRITE_MASK]; |
4817 | if (nla_overwrite_mask) { | |
4818 | struct nla_bitfield32 sections; | |
4819 | ||
4820 | if (!(supported_params & DEVLINK_SUPPORT_FLASH_UPDATE_OVERWRITE_MASK)) { | |
4821 | NL_SET_ERR_MSG_ATTR(info->extack, nla_overwrite_mask, | |
4822 | "overwrite settings are not supported by this device"); | |
4823 | return -EOPNOTSUPP; | |
4824 | } | |
4825 | sections = nla_get_bitfield32(nla_overwrite_mask); | |
4826 | params.overwrite_mask = sections.value & sections.selector; | |
4827 | } | |
4828 | ||
b44cfd4f JK |
4829 | nla_file_name = info->attrs[DEVLINK_ATTR_FLASH_UPDATE_FILE_NAME]; |
4830 | file_name = nla_data(nla_file_name); | |
4831 | ret = request_firmware(¶ms.fw, file_name, devlink->dev); | |
4832 | if (ret) { | |
4833 | NL_SET_ERR_MSG_ATTR(info->extack, nla_file_name, "failed to locate the requested firmware file"); | |
4834 | return ret; | |
4835 | } | |
4836 | ||
52cc5f3a | 4837 | devlink_flash_update_begin_notify(devlink); |
b44cfd4f | 4838 | ret = devlink->ops->flash_update(devlink, ¶ms, info->extack); |
52cc5f3a | 4839 | devlink_flash_update_end_notify(devlink); |
b44cfd4f JK |
4840 | |
4841 | release_firmware(params.fw); | |
4842 | ||
4843 | return ret; | |
76726ccb JK |
4844 | } |
4845 | ||
08f588fa VG |
4846 | static int |
4847 | devlink_nl_selftests_fill(struct sk_buff *msg, struct devlink *devlink, | |
4848 | u32 portid, u32 seq, int flags, | |
4849 | struct netlink_ext_ack *extack) | |
4850 | { | |
4851 | struct nlattr *selftests; | |
4852 | void *hdr; | |
4853 | int err; | |
4854 | int i; | |
4855 | ||
4856 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, | |
4857 | DEVLINK_CMD_SELFTESTS_GET); | |
4858 | if (!hdr) | |
4859 | return -EMSGSIZE; | |
4860 | ||
4861 | err = -EMSGSIZE; | |
4862 | if (devlink_nl_put_handle(msg, devlink)) | |
4863 | goto err_cancel_msg; | |
4864 | ||
4865 | selftests = nla_nest_start(msg, DEVLINK_ATTR_SELFTESTS); | |
4866 | if (!selftests) | |
4867 | goto err_cancel_msg; | |
4868 | ||
4869 | for (i = DEVLINK_ATTR_SELFTEST_ID_UNSPEC + 1; | |
4870 | i <= DEVLINK_ATTR_SELFTEST_ID_MAX; i++) { | |
4871 | if (devlink->ops->selftest_check(devlink, i, extack)) { | |
4872 | err = nla_put_flag(msg, i); | |
4873 | if (err) | |
4874 | goto err_cancel_msg; | |
4875 | } | |
4876 | } | |
4877 | ||
4878 | nla_nest_end(msg, selftests); | |
4879 | genlmsg_end(msg, hdr); | |
4880 | return 0; | |
4881 | ||
4882 | err_cancel_msg: | |
4883 | genlmsg_cancel(msg, hdr); | |
4884 | return err; | |
4885 | } | |
4886 | ||
4887 | static int devlink_nl_cmd_selftests_get_doit(struct sk_buff *skb, | |
4888 | struct genl_info *info) | |
4889 | { | |
4890 | struct devlink *devlink = info->user_ptr[0]; | |
4891 | struct sk_buff *msg; | |
4892 | int err; | |
4893 | ||
4894 | if (!devlink->ops->selftest_check) | |
4895 | return -EOPNOTSUPP; | |
4896 | ||
4897 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
4898 | if (!msg) | |
4899 | return -ENOMEM; | |
4900 | ||
4901 | err = devlink_nl_selftests_fill(msg, devlink, info->snd_portid, | |
4902 | info->snd_seq, 0, info->extack); | |
4903 | if (err) { | |
4904 | nlmsg_free(msg); | |
4905 | return err; | |
4906 | } | |
4907 | ||
4908 | return genlmsg_reply(msg, info); | |
4909 | } | |
4910 | ||
4911 | static int devlink_nl_cmd_selftests_get_dumpit(struct sk_buff *msg, | |
4912 | struct netlink_callback *cb) | |
4913 | { | |
4914 | struct devlink *devlink; | |
4915 | int start = cb->args[0]; | |
4916 | unsigned long index; | |
4917 | int idx = 0; | |
4918 | int err = 0; | |
4919 | ||
4920 | mutex_lock(&devlink_mutex); | |
4921 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { | |
4922 | if (idx < start || !devlink->ops->selftest_check) | |
4923 | goto inc; | |
4924 | ||
4925 | devl_lock(devlink); | |
4926 | err = devlink_nl_selftests_fill(msg, devlink, | |
4927 | NETLINK_CB(cb->skb).portid, | |
4928 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
4929 | cb->extack); | |
4930 | devl_unlock(devlink); | |
4931 | if (err) { | |
4932 | devlink_put(devlink); | |
4933 | break; | |
4934 | } | |
4935 | inc: | |
4936 | idx++; | |
4937 | devlink_put(devlink); | |
4938 | } | |
4939 | mutex_unlock(&devlink_mutex); | |
4940 | ||
4941 | if (err != -EMSGSIZE) | |
4942 | return err; | |
4943 | ||
4944 | cb->args[0] = idx; | |
4945 | return msg->len; | |
4946 | } | |
4947 | ||
4948 | static int devlink_selftest_result_put(struct sk_buff *skb, unsigned int id, | |
4949 | enum devlink_selftest_status test_status) | |
4950 | { | |
4951 | struct nlattr *result_attr; | |
4952 | ||
4953 | result_attr = nla_nest_start(skb, DEVLINK_ATTR_SELFTEST_RESULT); | |
4954 | if (!result_attr) | |
4955 | return -EMSGSIZE; | |
4956 | ||
4957 | if (nla_put_u32(skb, DEVLINK_ATTR_SELFTEST_RESULT_ID, id) || | |
4958 | nla_put_u8(skb, DEVLINK_ATTR_SELFTEST_RESULT_STATUS, | |
4959 | test_status)) | |
4960 | goto nla_put_failure; | |
4961 | ||
4962 | nla_nest_end(skb, result_attr); | |
4963 | return 0; | |
4964 | ||
4965 | nla_put_failure: | |
4966 | nla_nest_cancel(skb, result_attr); | |
4967 | return -EMSGSIZE; | |
4968 | } | |
4969 | ||
4970 | static int devlink_nl_cmd_selftests_run(struct sk_buff *skb, | |
4971 | struct genl_info *info) | |
4972 | { | |
4973 | struct nlattr *tb[DEVLINK_ATTR_SELFTEST_ID_MAX + 1]; | |
4974 | struct devlink *devlink = info->user_ptr[0]; | |
4975 | struct nlattr *attrs, *selftests; | |
4976 | struct sk_buff *msg; | |
4977 | void *hdr; | |
4978 | int err; | |
4979 | int i; | |
4980 | ||
4981 | if (!devlink->ops->selftest_run || !devlink->ops->selftest_check) | |
4982 | return -EOPNOTSUPP; | |
4983 | ||
4984 | if (!info->attrs[DEVLINK_ATTR_SELFTESTS]) { | |
4985 | NL_SET_ERR_MSG_MOD(info->extack, "selftest required"); | |
4986 | return -EINVAL; | |
4987 | } | |
4988 | ||
4989 | attrs = info->attrs[DEVLINK_ATTR_SELFTESTS]; | |
4990 | ||
4991 | err = nla_parse_nested(tb, DEVLINK_ATTR_SELFTEST_ID_MAX, attrs, | |
4992 | devlink_selftest_nl_policy, info->extack); | |
4993 | if (err < 0) | |
4994 | return err; | |
4995 | ||
4996 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
4997 | if (!msg) | |
4998 | return -ENOMEM; | |
4999 | ||
5000 | err = -EMSGSIZE; | |
5001 | hdr = genlmsg_put(msg, info->snd_portid, info->snd_seq, | |
5002 | &devlink_nl_family, 0, DEVLINK_CMD_SELFTESTS_RUN); | |
5003 | if (!hdr) | |
5004 | goto free_msg; | |
5005 | ||
5006 | if (devlink_nl_put_handle(msg, devlink)) | |
5007 | goto genlmsg_cancel; | |
5008 | ||
5009 | selftests = nla_nest_start(msg, DEVLINK_ATTR_SELFTESTS); | |
5010 | if (!selftests) | |
5011 | goto genlmsg_cancel; | |
5012 | ||
5013 | for (i = DEVLINK_ATTR_SELFTEST_ID_UNSPEC + 1; | |
5014 | i <= DEVLINK_ATTR_SELFTEST_ID_MAX; i++) { | |
5015 | enum devlink_selftest_status test_status; | |
5016 | ||
5017 | if (nla_get_flag(tb[i])) { | |
5018 | if (!devlink->ops->selftest_check(devlink, i, | |
5019 | info->extack)) { | |
5020 | if (devlink_selftest_result_put(msg, i, | |
5021 | DEVLINK_SELFTEST_STATUS_SKIP)) | |
5022 | goto selftests_nest_cancel; | |
5023 | continue; | |
5024 | } | |
5025 | ||
5026 | test_status = devlink->ops->selftest_run(devlink, i, | |
5027 | info->extack); | |
5028 | if (devlink_selftest_result_put(msg, i, test_status)) | |
5029 | goto selftests_nest_cancel; | |
5030 | } | |
5031 | } | |
5032 | ||
5033 | nla_nest_end(msg, selftests); | |
5034 | genlmsg_end(msg, hdr); | |
5035 | return genlmsg_reply(msg, info); | |
5036 | ||
5037 | selftests_nest_cancel: | |
5038 | nla_nest_cancel(msg, selftests); | |
5039 | genlmsg_cancel: | |
5040 | genlmsg_cancel(msg, hdr); | |
5041 | free_msg: | |
5042 | nlmsg_free(msg); | |
5043 | return err; | |
5044 | } | |
5045 | ||
036467c3 MS |
5046 | static const struct devlink_param devlink_param_generic[] = { |
5047 | { | |
5048 | .id = DEVLINK_PARAM_GENERIC_ID_INT_ERR_RESET, | |
5049 | .name = DEVLINK_PARAM_GENERIC_INT_ERR_RESET_NAME, | |
5050 | .type = DEVLINK_PARAM_GENERIC_INT_ERR_RESET_TYPE, | |
5051 | }, | |
5052 | { | |
5053 | .id = DEVLINK_PARAM_GENERIC_ID_MAX_MACS, | |
5054 | .name = DEVLINK_PARAM_GENERIC_MAX_MACS_NAME, | |
5055 | .type = DEVLINK_PARAM_GENERIC_MAX_MACS_TYPE, | |
5056 | }, | |
f567bcda VV |
5057 | { |
5058 | .id = DEVLINK_PARAM_GENERIC_ID_ENABLE_SRIOV, | |
5059 | .name = DEVLINK_PARAM_GENERIC_ENABLE_SRIOV_NAME, | |
5060 | .type = DEVLINK_PARAM_GENERIC_ENABLE_SRIOV_TYPE, | |
5061 | }, | |
f6a69885 AV |
5062 | { |
5063 | .id = DEVLINK_PARAM_GENERIC_ID_REGION_SNAPSHOT, | |
5064 | .name = DEVLINK_PARAM_GENERIC_REGION_SNAPSHOT_NAME, | |
5065 | .type = DEVLINK_PARAM_GENERIC_REGION_SNAPSHOT_TYPE, | |
5066 | }, | |
e3b51061 VV |
5067 | { |
5068 | .id = DEVLINK_PARAM_GENERIC_ID_IGNORE_ARI, | |
5069 | .name = DEVLINK_PARAM_GENERIC_IGNORE_ARI_NAME, | |
5070 | .type = DEVLINK_PARAM_GENERIC_IGNORE_ARI_TYPE, | |
5071 | }, | |
f61cba42 VV |
5072 | { |
5073 | .id = DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MAX, | |
5074 | .name = DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MAX_NAME, | |
5075 | .type = DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MAX_TYPE, | |
5076 | }, | |
16511789 VV |
5077 | { |
5078 | .id = DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MIN, | |
5079 | .name = DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MIN_NAME, | |
5080 | .type = DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MIN_TYPE, | |
5081 | }, | |
846e980a ST |
5082 | { |
5083 | .id = DEVLINK_PARAM_GENERIC_ID_FW_LOAD_POLICY, | |
5084 | .name = DEVLINK_PARAM_GENERIC_FW_LOAD_POLICY_NAME, | |
5085 | .type = DEVLINK_PARAM_GENERIC_FW_LOAD_POLICY_TYPE, | |
5086 | }, | |
5bbd21df DM |
5087 | { |
5088 | .id = DEVLINK_PARAM_GENERIC_ID_RESET_DEV_ON_DRV_PROBE, | |
5089 | .name = DEVLINK_PARAM_GENERIC_RESET_DEV_ON_DRV_PROBE_NAME, | |
5090 | .type = DEVLINK_PARAM_GENERIC_RESET_DEV_ON_DRV_PROBE_TYPE, | |
5091 | }, | |
6c7295e1 MG |
5092 | { |
5093 | .id = DEVLINK_PARAM_GENERIC_ID_ENABLE_ROCE, | |
5094 | .name = DEVLINK_PARAM_GENERIC_ENABLE_ROCE_NAME, | |
5095 | .type = DEVLINK_PARAM_GENERIC_ENABLE_ROCE_TYPE, | |
5096 | }, | |
195d9dec MS |
5097 | { |
5098 | .id = DEVLINK_PARAM_GENERIC_ID_ENABLE_REMOTE_DEV_RESET, | |
5099 | .name = DEVLINK_PARAM_GENERIC_ENABLE_REMOTE_DEV_RESET_NAME, | |
5100 | .type = DEVLINK_PARAM_GENERIC_ENABLE_REMOTE_DEV_RESET_TYPE, | |
5101 | }, | |
f13a5ad8 PP |
5102 | { |
5103 | .id = DEVLINK_PARAM_GENERIC_ID_ENABLE_ETH, | |
5104 | .name = DEVLINK_PARAM_GENERIC_ENABLE_ETH_NAME, | |
5105 | .type = DEVLINK_PARAM_GENERIC_ENABLE_ETH_TYPE, | |
5106 | }, | |
8ddaabee PP |
5107 | { |
5108 | .id = DEVLINK_PARAM_GENERIC_ID_ENABLE_RDMA, | |
5109 | .name = DEVLINK_PARAM_GENERIC_ENABLE_RDMA_NAME, | |
5110 | .type = DEVLINK_PARAM_GENERIC_ENABLE_RDMA_TYPE, | |
5111 | }, | |
076b2a9d PP |
5112 | { |
5113 | .id = DEVLINK_PARAM_GENERIC_ID_ENABLE_VNET, | |
5114 | .name = DEVLINK_PARAM_GENERIC_ENABLE_VNET_NAME, | |
5115 | .type = DEVLINK_PARAM_GENERIC_ENABLE_VNET_TYPE, | |
5116 | }, | |
325e0d0a SS |
5117 | { |
5118 | .id = DEVLINK_PARAM_GENERIC_ID_ENABLE_IWARP, | |
5119 | .name = DEVLINK_PARAM_GENERIC_ENABLE_IWARP_NAME, | |
5120 | .type = DEVLINK_PARAM_GENERIC_ENABLE_IWARP_TYPE, | |
5121 | }, | |
47402385 SD |
5122 | { |
5123 | .id = DEVLINK_PARAM_GENERIC_ID_IO_EQ_SIZE, | |
5124 | .name = DEVLINK_PARAM_GENERIC_IO_EQ_SIZE_NAME, | |
5125 | .type = DEVLINK_PARAM_GENERIC_IO_EQ_SIZE_TYPE, | |
5126 | }, | |
0b5705eb SD |
5127 | { |
5128 | .id = DEVLINK_PARAM_GENERIC_ID_EVENT_EQ_SIZE, | |
5129 | .name = DEVLINK_PARAM_GENERIC_EVENT_EQ_SIZE_NAME, | |
5130 | .type = DEVLINK_PARAM_GENERIC_EVENT_EQ_SIZE_TYPE, | |
5131 | }, | |
036467c3 | 5132 | }; |
eabaef18 MS |
5133 | |
5134 | static int devlink_param_generic_verify(const struct devlink_param *param) | |
5135 | { | |
5136 | /* verify it match generic parameter by id and name */ | |
5137 | if (param->id > DEVLINK_PARAM_GENERIC_ID_MAX) | |
5138 | return -EINVAL; | |
5139 | if (strcmp(param->name, devlink_param_generic[param->id].name)) | |
5140 | return -ENOENT; | |
5141 | ||
5142 | WARN_ON(param->type != devlink_param_generic[param->id].type); | |
5143 | ||
5144 | return 0; | |
5145 | } | |
5146 | ||
5147 | static int devlink_param_driver_verify(const struct devlink_param *param) | |
5148 | { | |
5149 | int i; | |
5150 | ||
5151 | if (param->id <= DEVLINK_PARAM_GENERIC_ID_MAX) | |
5152 | return -EINVAL; | |
5153 | /* verify no such name in generic params */ | |
5154 | for (i = 0; i <= DEVLINK_PARAM_GENERIC_ID_MAX; i++) | |
5155 | if (!strcmp(param->name, devlink_param_generic[i].name)) | |
5156 | return -EEXIST; | |
5157 | ||
5158 | return 0; | |
5159 | } | |
5160 | ||
5161 | static struct devlink_param_item * | |
5162 | devlink_param_find_by_name(struct list_head *param_list, | |
5163 | const char *param_name) | |
5164 | { | |
5165 | struct devlink_param_item *param_item; | |
5166 | ||
5167 | list_for_each_entry(param_item, param_list, list) | |
5168 | if (!strcmp(param_item->param->name, param_name)) | |
5169 | return param_item; | |
5170 | return NULL; | |
5171 | } | |
5172 | ||
ec01aeb1 MS |
5173 | static struct devlink_param_item * |
5174 | devlink_param_find_by_id(struct list_head *param_list, u32 param_id) | |
5175 | { | |
5176 | struct devlink_param_item *param_item; | |
5177 | ||
5178 | list_for_each_entry(param_item, param_list, list) | |
5179 | if (param_item->param->id == param_id) | |
5180 | return param_item; | |
5181 | return NULL; | |
5182 | } | |
5183 | ||
45f05def MS |
5184 | static bool |
5185 | devlink_param_cmode_is_supported(const struct devlink_param *param, | |
5186 | enum devlink_param_cmode cmode) | |
5187 | { | |
5188 | return test_bit(cmode, ¶m->supported_cmodes); | |
5189 | } | |
5190 | ||
5191 | static int devlink_param_get(struct devlink *devlink, | |
5192 | const struct devlink_param *param, | |
5193 | struct devlink_param_gset_ctx *ctx) | |
5194 | { | |
5195 | if (!param->get) | |
5196 | return -EOPNOTSUPP; | |
5197 | return param->get(devlink, param->id, ctx); | |
5198 | } | |
5199 | ||
e3b7ca18 MS |
5200 | static int devlink_param_set(struct devlink *devlink, |
5201 | const struct devlink_param *param, | |
5202 | struct devlink_param_gset_ctx *ctx) | |
5203 | { | |
5204 | if (!param->set) | |
5205 | return -EOPNOTSUPP; | |
5206 | return param->set(devlink, param->id, ctx); | |
5207 | } | |
5208 | ||
45f05def MS |
5209 | static int |
5210 | devlink_param_type_to_nla_type(enum devlink_param_type param_type) | |
5211 | { | |
5212 | switch (param_type) { | |
5213 | case DEVLINK_PARAM_TYPE_U8: | |
5214 | return NLA_U8; | |
5215 | case DEVLINK_PARAM_TYPE_U16: | |
5216 | return NLA_U16; | |
5217 | case DEVLINK_PARAM_TYPE_U32: | |
5218 | return NLA_U32; | |
5219 | case DEVLINK_PARAM_TYPE_STRING: | |
5220 | return NLA_STRING; | |
5221 | case DEVLINK_PARAM_TYPE_BOOL: | |
5222 | return NLA_FLAG; | |
5223 | default: | |
5224 | return -EINVAL; | |
5225 | } | |
5226 | } | |
5227 | ||
5228 | static int | |
5229 | devlink_nl_param_value_fill_one(struct sk_buff *msg, | |
5230 | enum devlink_param_type type, | |
5231 | enum devlink_param_cmode cmode, | |
5232 | union devlink_param_value val) | |
5233 | { | |
5234 | struct nlattr *param_value_attr; | |
5235 | ||
ae0be8de MK |
5236 | param_value_attr = nla_nest_start_noflag(msg, |
5237 | DEVLINK_ATTR_PARAM_VALUE); | |
45f05def MS |
5238 | if (!param_value_attr) |
5239 | goto nla_put_failure; | |
5240 | ||
5241 | if (nla_put_u8(msg, DEVLINK_ATTR_PARAM_VALUE_CMODE, cmode)) | |
5242 | goto value_nest_cancel; | |
5243 | ||
5244 | switch (type) { | |
5245 | case DEVLINK_PARAM_TYPE_U8: | |
5246 | if (nla_put_u8(msg, DEVLINK_ATTR_PARAM_VALUE_DATA, val.vu8)) | |
5247 | goto value_nest_cancel; | |
5248 | break; | |
5249 | case DEVLINK_PARAM_TYPE_U16: | |
5250 | if (nla_put_u16(msg, DEVLINK_ATTR_PARAM_VALUE_DATA, val.vu16)) | |
5251 | goto value_nest_cancel; | |
5252 | break; | |
5253 | case DEVLINK_PARAM_TYPE_U32: | |
5254 | if (nla_put_u32(msg, DEVLINK_ATTR_PARAM_VALUE_DATA, val.vu32)) | |
5255 | goto value_nest_cancel; | |
5256 | break; | |
5257 | case DEVLINK_PARAM_TYPE_STRING: | |
5258 | if (nla_put_string(msg, DEVLINK_ATTR_PARAM_VALUE_DATA, | |
5259 | val.vstr)) | |
5260 | goto value_nest_cancel; | |
5261 | break; | |
5262 | case DEVLINK_PARAM_TYPE_BOOL: | |
5263 | if (val.vbool && | |
5264 | nla_put_flag(msg, DEVLINK_ATTR_PARAM_VALUE_DATA)) | |
5265 | goto value_nest_cancel; | |
5266 | break; | |
5267 | } | |
5268 | ||
5269 | nla_nest_end(msg, param_value_attr); | |
5270 | return 0; | |
5271 | ||
5272 | value_nest_cancel: | |
5273 | nla_nest_cancel(msg, param_value_attr); | |
5274 | nla_put_failure: | |
5275 | return -EMSGSIZE; | |
5276 | } | |
5277 | ||
5278 | static int devlink_nl_param_fill(struct sk_buff *msg, struct devlink *devlink, | |
f4601dee | 5279 | unsigned int port_index, |
45f05def MS |
5280 | struct devlink_param_item *param_item, |
5281 | enum devlink_command cmd, | |
5282 | u32 portid, u32 seq, int flags) | |
5283 | { | |
5284 | union devlink_param_value param_value[DEVLINK_PARAM_CMODE_MAX + 1]; | |
7c62cfb8 | 5285 | bool param_value_set[DEVLINK_PARAM_CMODE_MAX + 1] = {}; |
45f05def MS |
5286 | const struct devlink_param *param = param_item->param; |
5287 | struct devlink_param_gset_ctx ctx; | |
5288 | struct nlattr *param_values_list; | |
5289 | struct nlattr *param_attr; | |
5290 | int nla_type; | |
5291 | void *hdr; | |
5292 | int err; | |
5293 | int i; | |
5294 | ||
5295 | /* Get value from driver part to driverinit configuration mode */ | |
5296 | for (i = 0; i <= DEVLINK_PARAM_CMODE_MAX; i++) { | |
5297 | if (!devlink_param_cmode_is_supported(param, i)) | |
5298 | continue; | |
5299 | if (i == DEVLINK_PARAM_CMODE_DRIVERINIT) { | |
5300 | if (!param_item->driverinit_value_valid) | |
5301 | return -EOPNOTSUPP; | |
5302 | param_value[i] = param_item->driverinit_value; | |
5303 | } else { | |
5304 | ctx.cmode = i; | |
5305 | err = devlink_param_get(devlink, param, &ctx); | |
5306 | if (err) | |
5307 | return err; | |
5308 | param_value[i] = ctx.val; | |
5309 | } | |
7c62cfb8 | 5310 | param_value_set[i] = true; |
45f05def MS |
5311 | } |
5312 | ||
5313 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
5314 | if (!hdr) | |
5315 | return -EMSGSIZE; | |
5316 | ||
5317 | if (devlink_nl_put_handle(msg, devlink)) | |
5318 | goto genlmsg_cancel; | |
f4601dee | 5319 | |
c1e5786d VV |
5320 | if (cmd == DEVLINK_CMD_PORT_PARAM_GET || |
5321 | cmd == DEVLINK_CMD_PORT_PARAM_NEW || | |
5322 | cmd == DEVLINK_CMD_PORT_PARAM_DEL) | |
f4601dee VV |
5323 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, port_index)) |
5324 | goto genlmsg_cancel; | |
5325 | ||
ae0be8de | 5326 | param_attr = nla_nest_start_noflag(msg, DEVLINK_ATTR_PARAM); |
45f05def MS |
5327 | if (!param_attr) |
5328 | goto genlmsg_cancel; | |
5329 | if (nla_put_string(msg, DEVLINK_ATTR_PARAM_NAME, param->name)) | |
5330 | goto param_nest_cancel; | |
5331 | if (param->generic && nla_put_flag(msg, DEVLINK_ATTR_PARAM_GENERIC)) | |
5332 | goto param_nest_cancel; | |
5333 | ||
5334 | nla_type = devlink_param_type_to_nla_type(param->type); | |
5335 | if (nla_type < 0) | |
5336 | goto param_nest_cancel; | |
5337 | if (nla_put_u8(msg, DEVLINK_ATTR_PARAM_TYPE, nla_type)) | |
5338 | goto param_nest_cancel; | |
5339 | ||
ae0be8de MK |
5340 | param_values_list = nla_nest_start_noflag(msg, |
5341 | DEVLINK_ATTR_PARAM_VALUES_LIST); | |
45f05def MS |
5342 | if (!param_values_list) |
5343 | goto param_nest_cancel; | |
5344 | ||
5345 | for (i = 0; i <= DEVLINK_PARAM_CMODE_MAX; i++) { | |
7c62cfb8 | 5346 | if (!param_value_set[i]) |
45f05def MS |
5347 | continue; |
5348 | err = devlink_nl_param_value_fill_one(msg, param->type, | |
5349 | i, param_value[i]); | |
5350 | if (err) | |
5351 | goto values_list_nest_cancel; | |
5352 | } | |
5353 | ||
5354 | nla_nest_end(msg, param_values_list); | |
5355 | nla_nest_end(msg, param_attr); | |
5356 | genlmsg_end(msg, hdr); | |
5357 | return 0; | |
5358 | ||
5359 | values_list_nest_cancel: | |
5360 | nla_nest_end(msg, param_values_list); | |
5361 | param_nest_cancel: | |
5362 | nla_nest_cancel(msg, param_attr); | |
5363 | genlmsg_cancel: | |
5364 | genlmsg_cancel(msg, hdr); | |
5365 | return -EMSGSIZE; | |
5366 | } | |
5367 | ||
ea601e17 | 5368 | static void devlink_param_notify(struct devlink *devlink, |
c1e5786d | 5369 | unsigned int port_index, |
ea601e17 MS |
5370 | struct devlink_param_item *param_item, |
5371 | enum devlink_command cmd) | |
5372 | { | |
5373 | struct sk_buff *msg; | |
5374 | int err; | |
5375 | ||
c1e5786d VV |
5376 | WARN_ON(cmd != DEVLINK_CMD_PARAM_NEW && cmd != DEVLINK_CMD_PARAM_DEL && |
5377 | cmd != DEVLINK_CMD_PORT_PARAM_NEW && | |
5378 | cmd != DEVLINK_CMD_PORT_PARAM_DEL); | |
7a690ad4 | 5379 | ASSERT_DEVLINK_REGISTERED(devlink); |
ea601e17 MS |
5380 | |
5381 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
5382 | if (!msg) | |
5383 | return; | |
c1e5786d VV |
5384 | err = devlink_nl_param_fill(msg, devlink, port_index, param_item, cmd, |
5385 | 0, 0, 0); | |
ea601e17 MS |
5386 | if (err) { |
5387 | nlmsg_free(msg); | |
5388 | return; | |
5389 | } | |
5390 | ||
5391 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), | |
5392 | msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
5393 | } | |
5394 | ||
45f05def MS |
5395 | static int devlink_nl_cmd_param_get_dumpit(struct sk_buff *msg, |
5396 | struct netlink_callback *cb) | |
5397 | { | |
5398 | struct devlink_param_item *param_item; | |
5399 | struct devlink *devlink; | |
5400 | int start = cb->args[0]; | |
11a861d7 | 5401 | unsigned long index; |
45f05def | 5402 | int idx = 0; |
c62c2cfb | 5403 | int err = 0; |
45f05def MS |
5404 | |
5405 | mutex_lock(&devlink_mutex); | |
294c4f57 | 5406 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
7715023a | 5407 | devl_lock(devlink); |
45f05def MS |
5408 | list_for_each_entry(param_item, &devlink->param_list, list) { |
5409 | if (idx < start) { | |
5410 | idx++; | |
5411 | continue; | |
5412 | } | |
f4601dee | 5413 | err = devlink_nl_param_fill(msg, devlink, 0, param_item, |
45f05def MS |
5414 | DEVLINK_CMD_PARAM_GET, |
5415 | NETLINK_CB(cb->skb).portid, | |
5416 | cb->nlh->nlmsg_seq, | |
5417 | NLM_F_MULTI); | |
82274d07 JK |
5418 | if (err == -EOPNOTSUPP) { |
5419 | err = 0; | |
5420 | } else if (err) { | |
7715023a | 5421 | devl_unlock(devlink); |
437ebfd9 | 5422 | devlink_put(devlink); |
45f05def MS |
5423 | goto out; |
5424 | } | |
5425 | idx++; | |
5426 | } | |
7715023a | 5427 | devl_unlock(devlink); |
437ebfd9 | 5428 | devlink_put(devlink); |
45f05def MS |
5429 | } |
5430 | out: | |
5431 | mutex_unlock(&devlink_mutex); | |
5432 | ||
c62c2cfb JP |
5433 | if (err != -EMSGSIZE) |
5434 | return err; | |
5435 | ||
45f05def MS |
5436 | cb->args[0] = idx; |
5437 | return msg->len; | |
5438 | } | |
5439 | ||
e3b7ca18 MS |
5440 | static int |
5441 | devlink_param_type_get_from_info(struct genl_info *info, | |
5442 | enum devlink_param_type *param_type) | |
5443 | { | |
5444 | if (!info->attrs[DEVLINK_ATTR_PARAM_TYPE]) | |
5445 | return -EINVAL; | |
5446 | ||
5447 | switch (nla_get_u8(info->attrs[DEVLINK_ATTR_PARAM_TYPE])) { | |
5448 | case NLA_U8: | |
5449 | *param_type = DEVLINK_PARAM_TYPE_U8; | |
5450 | break; | |
5451 | case NLA_U16: | |
5452 | *param_type = DEVLINK_PARAM_TYPE_U16; | |
5453 | break; | |
5454 | case NLA_U32: | |
5455 | *param_type = DEVLINK_PARAM_TYPE_U32; | |
5456 | break; | |
5457 | case NLA_STRING: | |
5458 | *param_type = DEVLINK_PARAM_TYPE_STRING; | |
5459 | break; | |
5460 | case NLA_FLAG: | |
5461 | *param_type = DEVLINK_PARAM_TYPE_BOOL; | |
5462 | break; | |
5463 | default: | |
5464 | return -EINVAL; | |
5465 | } | |
5466 | ||
5467 | return 0; | |
5468 | } | |
5469 | ||
5470 | static int | |
5471 | devlink_param_value_get_from_info(const struct devlink_param *param, | |
5472 | struct genl_info *info, | |
5473 | union devlink_param_value *value) | |
5474 | { | |
8750939b | 5475 | struct nlattr *param_data; |
f355cfcd MS |
5476 | int len; |
5477 | ||
8750939b JK |
5478 | param_data = info->attrs[DEVLINK_ATTR_PARAM_VALUE_DATA]; |
5479 | ||
5480 | if (param->type != DEVLINK_PARAM_TYPE_BOOL && !param_data) | |
e3b7ca18 MS |
5481 | return -EINVAL; |
5482 | ||
5483 | switch (param->type) { | |
5484 | case DEVLINK_PARAM_TYPE_U8: | |
8750939b JK |
5485 | if (nla_len(param_data) != sizeof(u8)) |
5486 | return -EINVAL; | |
5487 | value->vu8 = nla_get_u8(param_data); | |
e3b7ca18 MS |
5488 | break; |
5489 | case DEVLINK_PARAM_TYPE_U16: | |
8750939b JK |
5490 | if (nla_len(param_data) != sizeof(u16)) |
5491 | return -EINVAL; | |
5492 | value->vu16 = nla_get_u16(param_data); | |
e3b7ca18 MS |
5493 | break; |
5494 | case DEVLINK_PARAM_TYPE_U32: | |
8750939b JK |
5495 | if (nla_len(param_data) != sizeof(u32)) |
5496 | return -EINVAL; | |
5497 | value->vu32 = nla_get_u32(param_data); | |
e3b7ca18 MS |
5498 | break; |
5499 | case DEVLINK_PARAM_TYPE_STRING: | |
8750939b JK |
5500 | len = strnlen(nla_data(param_data), nla_len(param_data)); |
5501 | if (len == nla_len(param_data) || | |
bde74ad1 | 5502 | len >= __DEVLINK_PARAM_MAX_STRING_VALUE) |
e3b7ca18 | 5503 | return -EINVAL; |
8750939b | 5504 | strcpy(value->vstr, nla_data(param_data)); |
e3b7ca18 MS |
5505 | break; |
5506 | case DEVLINK_PARAM_TYPE_BOOL: | |
8750939b JK |
5507 | if (param_data && nla_len(param_data)) |
5508 | return -EINVAL; | |
5509 | value->vbool = nla_get_flag(param_data); | |
e3b7ca18 MS |
5510 | break; |
5511 | } | |
5512 | return 0; | |
5513 | } | |
5514 | ||
45f05def | 5515 | static struct devlink_param_item * |
f4601dee | 5516 | devlink_param_get_from_info(struct list_head *param_list, |
45f05def MS |
5517 | struct genl_info *info) |
5518 | { | |
5519 | char *param_name; | |
5520 | ||
5521 | if (!info->attrs[DEVLINK_ATTR_PARAM_NAME]) | |
5522 | return NULL; | |
5523 | ||
5524 | param_name = nla_data(info->attrs[DEVLINK_ATTR_PARAM_NAME]); | |
f4601dee | 5525 | return devlink_param_find_by_name(param_list, param_name); |
45f05def MS |
5526 | } |
5527 | ||
5528 | static int devlink_nl_cmd_param_get_doit(struct sk_buff *skb, | |
5529 | struct genl_info *info) | |
5530 | { | |
5531 | struct devlink *devlink = info->user_ptr[0]; | |
5532 | struct devlink_param_item *param_item; | |
5533 | struct sk_buff *msg; | |
5534 | int err; | |
5535 | ||
f4601dee | 5536 | param_item = devlink_param_get_from_info(&devlink->param_list, info); |
45f05def MS |
5537 | if (!param_item) |
5538 | return -EINVAL; | |
5539 | ||
5540 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
5541 | if (!msg) | |
5542 | return -ENOMEM; | |
5543 | ||
f4601dee | 5544 | err = devlink_nl_param_fill(msg, devlink, 0, param_item, |
45f05def MS |
5545 | DEVLINK_CMD_PARAM_GET, |
5546 | info->snd_portid, info->snd_seq, 0); | |
5547 | if (err) { | |
5548 | nlmsg_free(msg); | |
5549 | return err; | |
5550 | } | |
5551 | ||
5552 | return genlmsg_reply(msg, info); | |
5553 | } | |
5554 | ||
9c54873b | 5555 | static int __devlink_nl_cmd_param_set_doit(struct devlink *devlink, |
c1e5786d | 5556 | unsigned int port_index, |
9c54873b VV |
5557 | struct list_head *param_list, |
5558 | struct genl_info *info, | |
5559 | enum devlink_command cmd) | |
e3b7ca18 | 5560 | { |
e3b7ca18 MS |
5561 | enum devlink_param_type param_type; |
5562 | struct devlink_param_gset_ctx ctx; | |
5563 | enum devlink_param_cmode cmode; | |
5564 | struct devlink_param_item *param_item; | |
5565 | const struct devlink_param *param; | |
5566 | union devlink_param_value value; | |
5567 | int err = 0; | |
5568 | ||
9c54873b | 5569 | param_item = devlink_param_get_from_info(param_list, info); |
e3b7ca18 MS |
5570 | if (!param_item) |
5571 | return -EINVAL; | |
5572 | param = param_item->param; | |
5573 | err = devlink_param_type_get_from_info(info, ¶m_type); | |
5574 | if (err) | |
5575 | return err; | |
5576 | if (param_type != param->type) | |
5577 | return -EINVAL; | |
5578 | err = devlink_param_value_get_from_info(param, info, &value); | |
5579 | if (err) | |
5580 | return err; | |
5581 | if (param->validate) { | |
5582 | err = param->validate(devlink, param->id, value, info->extack); | |
5583 | if (err) | |
5584 | return err; | |
5585 | } | |
5586 | ||
5587 | if (!info->attrs[DEVLINK_ATTR_PARAM_VALUE_CMODE]) | |
5588 | return -EINVAL; | |
5589 | cmode = nla_get_u8(info->attrs[DEVLINK_ATTR_PARAM_VALUE_CMODE]); | |
5590 | if (!devlink_param_cmode_is_supported(param, cmode)) | |
5591 | return -EOPNOTSUPP; | |
5592 | ||
5593 | if (cmode == DEVLINK_PARAM_CMODE_DRIVERINIT) { | |
1276534c MS |
5594 | if (param->type == DEVLINK_PARAM_TYPE_STRING) |
5595 | strcpy(param_item->driverinit_value.vstr, value.vstr); | |
5596 | else | |
5597 | param_item->driverinit_value = value; | |
e3b7ca18 MS |
5598 | param_item->driverinit_value_valid = true; |
5599 | } else { | |
5600 | if (!param->set) | |
5601 | return -EOPNOTSUPP; | |
5602 | ctx.val = value; | |
5603 | ctx.cmode = cmode; | |
5604 | err = devlink_param_set(devlink, param, &ctx); | |
5605 | if (err) | |
5606 | return err; | |
5607 | } | |
5608 | ||
c1e5786d | 5609 | devlink_param_notify(devlink, port_index, param_item, cmd); |
e3b7ca18 MS |
5610 | return 0; |
5611 | } | |
5612 | ||
9c54873b VV |
5613 | static int devlink_nl_cmd_param_set_doit(struct sk_buff *skb, |
5614 | struct genl_info *info) | |
5615 | { | |
5616 | struct devlink *devlink = info->user_ptr[0]; | |
5617 | ||
c1e5786d | 5618 | return __devlink_nl_cmd_param_set_doit(devlink, 0, &devlink->param_list, |
9c54873b VV |
5619 | info, DEVLINK_CMD_PARAM_NEW); |
5620 | } | |
5621 | ||
f4601dee VV |
5622 | static int devlink_nl_cmd_port_param_get_dumpit(struct sk_buff *msg, |
5623 | struct netlink_callback *cb) | |
5624 | { | |
5625 | struct devlink_param_item *param_item; | |
5626 | struct devlink_port *devlink_port; | |
5627 | struct devlink *devlink; | |
5628 | int start = cb->args[0]; | |
11a861d7 | 5629 | unsigned long index; |
f4601dee | 5630 | int idx = 0; |
c62c2cfb | 5631 | int err = 0; |
f4601dee VV |
5632 | |
5633 | mutex_lock(&devlink_mutex); | |
294c4f57 | 5634 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
7715023a | 5635 | devl_lock(devlink); |
f4601dee VV |
5636 | list_for_each_entry(devlink_port, &devlink->port_list, list) { |
5637 | list_for_each_entry(param_item, | |
5638 | &devlink_port->param_list, list) { | |
5639 | if (idx < start) { | |
5640 | idx++; | |
5641 | continue; | |
5642 | } | |
5643 | err = devlink_nl_param_fill(msg, | |
5644 | devlink_port->devlink, | |
5645 | devlink_port->index, param_item, | |
5646 | DEVLINK_CMD_PORT_PARAM_GET, | |
5647 | NETLINK_CB(cb->skb).portid, | |
5648 | cb->nlh->nlmsg_seq, | |
5649 | NLM_F_MULTI); | |
82274d07 JK |
5650 | if (err == -EOPNOTSUPP) { |
5651 | err = 0; | |
5652 | } else if (err) { | |
7715023a | 5653 | devl_unlock(devlink); |
437ebfd9 | 5654 | devlink_put(devlink); |
f4601dee VV |
5655 | goto out; |
5656 | } | |
5657 | idx++; | |
5658 | } | |
5659 | } | |
7715023a | 5660 | devl_unlock(devlink); |
437ebfd9 | 5661 | devlink_put(devlink); |
f4601dee VV |
5662 | } |
5663 | out: | |
5664 | mutex_unlock(&devlink_mutex); | |
5665 | ||
c62c2cfb JP |
5666 | if (err != -EMSGSIZE) |
5667 | return err; | |
5668 | ||
f4601dee VV |
5669 | cb->args[0] = idx; |
5670 | return msg->len; | |
5671 | } | |
5672 | ||
5673 | static int devlink_nl_cmd_port_param_get_doit(struct sk_buff *skb, | |
5674 | struct genl_info *info) | |
5675 | { | |
7e238de8 | 5676 | struct devlink_port *devlink_port = info->user_ptr[1]; |
f4601dee VV |
5677 | struct devlink_param_item *param_item; |
5678 | struct sk_buff *msg; | |
5679 | int err; | |
5680 | ||
5681 | param_item = devlink_param_get_from_info(&devlink_port->param_list, | |
5682 | info); | |
5683 | if (!param_item) | |
5684 | return -EINVAL; | |
5685 | ||
5686 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
5687 | if (!msg) | |
5688 | return -ENOMEM; | |
5689 | ||
5690 | err = devlink_nl_param_fill(msg, devlink_port->devlink, | |
5691 | devlink_port->index, param_item, | |
5692 | DEVLINK_CMD_PORT_PARAM_GET, | |
5693 | info->snd_portid, info->snd_seq, 0); | |
5694 | if (err) { | |
5695 | nlmsg_free(msg); | |
5696 | return err; | |
5697 | } | |
5698 | ||
5699 | return genlmsg_reply(msg, info); | |
5700 | } | |
5701 | ||
9c54873b VV |
5702 | static int devlink_nl_cmd_port_param_set_doit(struct sk_buff *skb, |
5703 | struct genl_info *info) | |
5704 | { | |
7e238de8 | 5705 | struct devlink_port *devlink_port = info->user_ptr[1]; |
9c54873b VV |
5706 | |
5707 | return __devlink_nl_cmd_param_set_doit(devlink_port->devlink, | |
c1e5786d VV |
5708 | devlink_port->index, |
5709 | &devlink_port->param_list, info, | |
5710 | DEVLINK_CMD_PORT_PARAM_NEW); | |
9c54873b VV |
5711 | } |
5712 | ||
a006d467 AV |
5713 | static int devlink_nl_region_snapshot_id_put(struct sk_buff *msg, |
5714 | struct devlink *devlink, | |
5715 | struct devlink_snapshot *snapshot) | |
5716 | { | |
5717 | struct nlattr *snap_attr; | |
5718 | int err; | |
5719 | ||
ae0be8de | 5720 | snap_attr = nla_nest_start_noflag(msg, DEVLINK_ATTR_REGION_SNAPSHOT); |
a006d467 AV |
5721 | if (!snap_attr) |
5722 | return -EINVAL; | |
5723 | ||
5724 | err = nla_put_u32(msg, DEVLINK_ATTR_REGION_SNAPSHOT_ID, snapshot->id); | |
5725 | if (err) | |
5726 | goto nla_put_failure; | |
5727 | ||
5728 | nla_nest_end(msg, snap_attr); | |
5729 | return 0; | |
5730 | ||
5731 | nla_put_failure: | |
5732 | nla_nest_cancel(msg, snap_attr); | |
5733 | return err; | |
5734 | } | |
5735 | ||
5736 | static int devlink_nl_region_snapshots_id_put(struct sk_buff *msg, | |
5737 | struct devlink *devlink, | |
5738 | struct devlink_region *region) | |
5739 | { | |
5740 | struct devlink_snapshot *snapshot; | |
5741 | struct nlattr *snapshots_attr; | |
5742 | int err; | |
5743 | ||
ae0be8de MK |
5744 | snapshots_attr = nla_nest_start_noflag(msg, |
5745 | DEVLINK_ATTR_REGION_SNAPSHOTS); | |
a006d467 AV |
5746 | if (!snapshots_attr) |
5747 | return -EINVAL; | |
5748 | ||
5749 | list_for_each_entry(snapshot, ®ion->snapshot_list, list) { | |
5750 | err = devlink_nl_region_snapshot_id_put(msg, devlink, snapshot); | |
5751 | if (err) | |
5752 | goto nla_put_failure; | |
5753 | } | |
5754 | ||
5755 | nla_nest_end(msg, snapshots_attr); | |
5756 | return 0; | |
5757 | ||
5758 | nla_put_failure: | |
5759 | nla_nest_cancel(msg, snapshots_attr); | |
5760 | return err; | |
5761 | } | |
5762 | ||
d8db7ea5 AV |
5763 | static int devlink_nl_region_fill(struct sk_buff *msg, struct devlink *devlink, |
5764 | enum devlink_command cmd, u32 portid, | |
5765 | u32 seq, int flags, | |
5766 | struct devlink_region *region) | |
5767 | { | |
5768 | void *hdr; | |
5769 | int err; | |
5770 | ||
5771 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
5772 | if (!hdr) | |
5773 | return -EMSGSIZE; | |
5774 | ||
5775 | err = devlink_nl_put_handle(msg, devlink); | |
5776 | if (err) | |
5777 | goto nla_put_failure; | |
5778 | ||
6c211809 DC |
5779 | if (region->port) { |
5780 | err = nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, | |
5781 | region->port->index); | |
5782 | if (err) | |
544e7c33 | 5783 | goto nla_put_failure; |
6c211809 | 5784 | } |
544e7c33 | 5785 | |
e8937681 | 5786 | err = nla_put_string(msg, DEVLINK_ATTR_REGION_NAME, region->ops->name); |
d8db7ea5 AV |
5787 | if (err) |
5788 | goto nla_put_failure; | |
5789 | ||
5790 | err = nla_put_u64_64bit(msg, DEVLINK_ATTR_REGION_SIZE, | |
5791 | region->size, | |
5792 | DEVLINK_ATTR_PAD); | |
5793 | if (err) | |
5794 | goto nla_put_failure; | |
5795 | ||
a70e3f02 JK |
5796 | err = nla_put_u32(msg, DEVLINK_ATTR_REGION_MAX_SNAPSHOTS, |
5797 | region->max_snapshots); | |
5798 | if (err) | |
5799 | goto nla_put_failure; | |
5800 | ||
a006d467 AV |
5801 | err = devlink_nl_region_snapshots_id_put(msg, devlink, region); |
5802 | if (err) | |
5803 | goto nla_put_failure; | |
5804 | ||
d8db7ea5 AV |
5805 | genlmsg_end(msg, hdr); |
5806 | return 0; | |
5807 | ||
5808 | nla_put_failure: | |
5809 | genlmsg_cancel(msg, hdr); | |
5810 | return err; | |
5811 | } | |
5812 | ||
dd86fec7 JK |
5813 | static struct sk_buff * |
5814 | devlink_nl_region_notify_build(struct devlink_region *region, | |
5815 | struct devlink_snapshot *snapshot, | |
5816 | enum devlink_command cmd, u32 portid, u32 seq) | |
866319bb AV |
5817 | { |
5818 | struct devlink *devlink = region->devlink; | |
5819 | struct sk_buff *msg; | |
5820 | void *hdr; | |
5821 | int err; | |
5822 | ||
866319bb AV |
5823 | |
5824 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
5825 | if (!msg) | |
dd86fec7 | 5826 | return ERR_PTR(-ENOMEM); |
866319bb | 5827 | |
dd86fec7 JK |
5828 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, 0, cmd); |
5829 | if (!hdr) { | |
5830 | err = -EMSGSIZE; | |
866319bb | 5831 | goto out_free_msg; |
dd86fec7 | 5832 | } |
866319bb AV |
5833 | |
5834 | err = devlink_nl_put_handle(msg, devlink); | |
5835 | if (err) | |
5836 | goto out_cancel_msg; | |
5837 | ||
6c211809 DC |
5838 | if (region->port) { |
5839 | err = nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, | |
5840 | region->port->index); | |
5841 | if (err) | |
544e7c33 | 5842 | goto out_cancel_msg; |
6c211809 | 5843 | } |
544e7c33 | 5844 | |
866319bb | 5845 | err = nla_put_string(msg, DEVLINK_ATTR_REGION_NAME, |
e8937681 | 5846 | region->ops->name); |
866319bb AV |
5847 | if (err) |
5848 | goto out_cancel_msg; | |
5849 | ||
5850 | if (snapshot) { | |
5851 | err = nla_put_u32(msg, DEVLINK_ATTR_REGION_SNAPSHOT_ID, | |
5852 | snapshot->id); | |
5853 | if (err) | |
5854 | goto out_cancel_msg; | |
5855 | } else { | |
5856 | err = nla_put_u64_64bit(msg, DEVLINK_ATTR_REGION_SIZE, | |
5857 | region->size, DEVLINK_ATTR_PAD); | |
5858 | if (err) | |
5859 | goto out_cancel_msg; | |
5860 | } | |
5861 | genlmsg_end(msg, hdr); | |
5862 | ||
dd86fec7 | 5863 | return msg; |
866319bb AV |
5864 | |
5865 | out_cancel_msg: | |
5866 | genlmsg_cancel(msg, hdr); | |
5867 | out_free_msg: | |
5868 | nlmsg_free(msg); | |
dd86fec7 JK |
5869 | return ERR_PTR(err); |
5870 | } | |
5871 | ||
5872 | static void devlink_nl_region_notify(struct devlink_region *region, | |
5873 | struct devlink_snapshot *snapshot, | |
5874 | enum devlink_command cmd) | |
5875 | { | |
cf530217 | 5876 | struct devlink *devlink = region->devlink; |
dd86fec7 JK |
5877 | struct sk_buff *msg; |
5878 | ||
5879 | WARN_ON(cmd != DEVLINK_CMD_REGION_NEW && cmd != DEVLINK_CMD_REGION_DEL); | |
ef91abfb LR |
5880 | if (!xa_get_mark(&devlinks, devlink->index, DEVLINK_REGISTERED)) |
5881 | return; | |
dd86fec7 JK |
5882 | |
5883 | msg = devlink_nl_region_notify_build(region, snapshot, cmd, 0, 0); | |
5884 | if (IS_ERR(msg)) | |
5885 | return; | |
5886 | ||
cf530217 LR |
5887 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), msg, |
5888 | 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
866319bb AV |
5889 | } |
5890 | ||
12102436 JK |
5891 | /** |
5892 | * __devlink_snapshot_id_increment - Increment number of snapshots using an id | |
5893 | * @devlink: devlink instance | |
5894 | * @id: the snapshot id | |
5895 | * | |
5896 | * Track when a new snapshot begins using an id. Load the count for the | |
5897 | * given id from the snapshot xarray, increment it, and store it back. | |
5898 | * | |
5899 | * Called when a new snapshot is created with the given id. | |
5900 | * | |
5901 | * The id *must* have been previously allocated by | |
5902 | * devlink_region_snapshot_id_get(). | |
5903 | * | |
5904 | * Returns 0 on success, or an error on failure. | |
5905 | */ | |
5906 | static int __devlink_snapshot_id_increment(struct devlink *devlink, u32 id) | |
5907 | { | |
5908 | unsigned long count; | |
5909 | void *p; | |
5502e871 | 5910 | int err; |
12102436 | 5911 | |
5502e871 | 5912 | xa_lock(&devlink->snapshot_ids); |
12102436 | 5913 | p = xa_load(&devlink->snapshot_ids, id); |
5502e871 JP |
5914 | if (WARN_ON(!p)) { |
5915 | err = -EINVAL; | |
5916 | goto unlock; | |
5917 | } | |
12102436 | 5918 | |
5502e871 JP |
5919 | if (WARN_ON(!xa_is_value(p))) { |
5920 | err = -EINVAL; | |
5921 | goto unlock; | |
5922 | } | |
12102436 JK |
5923 | |
5924 | count = xa_to_value(p); | |
5925 | count++; | |
5926 | ||
5502e871 JP |
5927 | err = xa_err(__xa_store(&devlink->snapshot_ids, id, xa_mk_value(count), |
5928 | GFP_ATOMIC)); | |
5929 | unlock: | |
5930 | xa_unlock(&devlink->snapshot_ids); | |
5931 | return err; | |
12102436 JK |
5932 | } |
5933 | ||
5934 | /** | |
5935 | * __devlink_snapshot_id_decrement - Decrease number of snapshots using an id | |
5936 | * @devlink: devlink instance | |
5937 | * @id: the snapshot id | |
5938 | * | |
5939 | * Track when a snapshot is deleted and stops using an id. Load the count | |
5940 | * for the given id from the snapshot xarray, decrement it, and store it | |
5941 | * back. | |
5942 | * | |
5943 | * If the count reaches zero, erase this id from the xarray, freeing it | |
5944 | * up for future re-use by devlink_region_snapshot_id_get(). | |
5945 | * | |
5946 | * Called when a snapshot using the given id is deleted, and when the | |
5947 | * initial allocator of the id is finished using it. | |
5948 | */ | |
5949 | static void __devlink_snapshot_id_decrement(struct devlink *devlink, u32 id) | |
5950 | { | |
5951 | unsigned long count; | |
5952 | void *p; | |
5953 | ||
5502e871 | 5954 | xa_lock(&devlink->snapshot_ids); |
12102436 JK |
5955 | p = xa_load(&devlink->snapshot_ids, id); |
5956 | if (WARN_ON(!p)) | |
5502e871 | 5957 | goto unlock; |
12102436 JK |
5958 | |
5959 | if (WARN_ON(!xa_is_value(p))) | |
5502e871 | 5960 | goto unlock; |
12102436 JK |
5961 | |
5962 | count = xa_to_value(p); | |
5963 | ||
5964 | if (count > 1) { | |
5965 | count--; | |
5502e871 JP |
5966 | __xa_store(&devlink->snapshot_ids, id, xa_mk_value(count), |
5967 | GFP_ATOMIC); | |
12102436 JK |
5968 | } else { |
5969 | /* If this was the last user, we can erase this id */ | |
5502e871 | 5970 | __xa_erase(&devlink->snapshot_ids, id); |
12102436 | 5971 | } |
5502e871 JP |
5972 | unlock: |
5973 | xa_unlock(&devlink->snapshot_ids); | |
12102436 JK |
5974 | } |
5975 | ||
b9a17abf JK |
5976 | /** |
5977 | * __devlink_snapshot_id_insert - Insert a specific snapshot ID | |
5978 | * @devlink: devlink instance | |
5979 | * @id: the snapshot id | |
5980 | * | |
5981 | * Mark the given snapshot id as used by inserting a zero value into the | |
5982 | * snapshot xarray. | |
5983 | * | |
5984 | * This must be called while holding the devlink instance lock. Unlike | |
5985 | * devlink_snapshot_id_get, the initial reference count is zero, not one. | |
5986 | * It is expected that the id will immediately be used before | |
5987 | * releasing the devlink instance lock. | |
5988 | * | |
5989 | * Returns zero on success, or an error code if the snapshot id could not | |
5990 | * be inserted. | |
5991 | */ | |
5992 | static int __devlink_snapshot_id_insert(struct devlink *devlink, u32 id) | |
5993 | { | |
5502e871 | 5994 | int err; |
b9a17abf | 5995 | |
5502e871 JP |
5996 | xa_lock(&devlink->snapshot_ids); |
5997 | if (xa_load(&devlink->snapshot_ids, id)) { | |
5998 | xa_unlock(&devlink->snapshot_ids); | |
b9a17abf | 5999 | return -EEXIST; |
5502e871 JP |
6000 | } |
6001 | err = xa_err(__xa_store(&devlink->snapshot_ids, id, xa_mk_value(0), | |
6002 | GFP_ATOMIC)); | |
6003 | xa_unlock(&devlink->snapshot_ids); | |
6004 | return err; | |
b9a17abf JK |
6005 | } |
6006 | ||
7000108f JK |
6007 | /** |
6008 | * __devlink_region_snapshot_id_get - get snapshot ID | |
6009 | * @devlink: devlink instance | |
7ef19d3b | 6010 | * @id: storage to return snapshot id |
7000108f | 6011 | * |
7ef19d3b JK |
6012 | * Allocates a new snapshot id. Returns zero on success, or a negative |
6013 | * error on failure. Must be called while holding the devlink instance | |
6014 | * lock. | |
12102436 JK |
6015 | * |
6016 | * Snapshot IDs are tracked using an xarray which stores the number of | |
6017 | * users of the snapshot id. | |
6018 | * | |
6019 | * Note that the caller of this function counts as a 'user', in order to | |
6020 | * avoid race conditions. The caller must release its hold on the | |
6021 | * snapshot by using devlink_region_snapshot_id_put. | |
7000108f | 6022 | */ |
7ef19d3b | 6023 | static int __devlink_region_snapshot_id_get(struct devlink *devlink, u32 *id) |
7000108f | 6024 | { |
12102436 JK |
6025 | return xa_alloc(&devlink->snapshot_ids, id, xa_mk_value(1), |
6026 | xa_limit_32b, GFP_KERNEL); | |
7000108f JK |
6027 | } |
6028 | ||
cf80faee JK |
6029 | /** |
6030 | * __devlink_region_snapshot_create - create a new snapshot | |
6031 | * This will add a new snapshot of a region. The snapshot | |
6032 | * will be stored on the region struct and can be accessed | |
6033 | * from devlink. This is useful for future analyses of snapshots. | |
6034 | * Multiple snapshots can be created on a region. | |
6035 | * The @snapshot_id should be obtained using the getter function. | |
6036 | * | |
2dec18ad | 6037 | * Must be called only while holding the region snapshot lock. |
cf80faee JK |
6038 | * |
6039 | * @region: devlink region of the snapshot | |
6040 | * @data: snapshot data | |
6041 | * @snapshot_id: snapshot id to be created | |
6042 | */ | |
6043 | static int | |
6044 | __devlink_region_snapshot_create(struct devlink_region *region, | |
6045 | u8 *data, u32 snapshot_id) | |
6046 | { | |
6047 | struct devlink *devlink = region->devlink; | |
6048 | struct devlink_snapshot *snapshot; | |
12102436 | 6049 | int err; |
cf80faee | 6050 | |
2dec18ad | 6051 | lockdep_assert_held(®ion->snapshot_lock); |
cf80faee JK |
6052 | |
6053 | /* check if region can hold one more snapshot */ | |
6054 | if (region->cur_snapshots == region->max_snapshots) | |
47a39f61 | 6055 | return -ENOSPC; |
cf80faee JK |
6056 | |
6057 | if (devlink_region_snapshot_get_by_id(region, snapshot_id)) | |
6058 | return -EEXIST; | |
6059 | ||
6060 | snapshot = kzalloc(sizeof(*snapshot), GFP_KERNEL); | |
6061 | if (!snapshot) | |
6062 | return -ENOMEM; | |
6063 | ||
12102436 JK |
6064 | err = __devlink_snapshot_id_increment(devlink, snapshot_id); |
6065 | if (err) | |
6066 | goto err_snapshot_id_increment; | |
6067 | ||
cf80faee JK |
6068 | snapshot->id = snapshot_id; |
6069 | snapshot->region = region; | |
6070 | snapshot->data = data; | |
6071 | ||
6072 | list_add_tail(&snapshot->list, ®ion->snapshot_list); | |
6073 | ||
6074 | region->cur_snapshots++; | |
6075 | ||
6076 | devlink_nl_region_notify(region, snapshot, DEVLINK_CMD_REGION_NEW); | |
6077 | return 0; | |
12102436 JK |
6078 | |
6079 | err_snapshot_id_increment: | |
6080 | kfree(snapshot); | |
6081 | return err; | |
cf80faee JK |
6082 | } |
6083 | ||
92b49822 JP |
6084 | static void devlink_region_snapshot_del(struct devlink_region *region, |
6085 | struct devlink_snapshot *snapshot) | |
6086 | { | |
12102436 JK |
6087 | struct devlink *devlink = region->devlink; |
6088 | ||
2dec18ad | 6089 | lockdep_assert_held(®ion->snapshot_lock); |
12102436 | 6090 | |
92b49822 JP |
6091 | devlink_nl_region_notify(region, snapshot, DEVLINK_CMD_REGION_DEL); |
6092 | region->cur_snapshots--; | |
6093 | list_del(&snapshot->list); | |
a0a09f6b | 6094 | region->ops->destructor(snapshot->data); |
12102436 | 6095 | __devlink_snapshot_id_decrement(devlink, snapshot->id); |
92b49822 JP |
6096 | kfree(snapshot); |
6097 | } | |
6098 | ||
d8db7ea5 AV |
6099 | static int devlink_nl_cmd_region_get_doit(struct sk_buff *skb, |
6100 | struct genl_info *info) | |
6101 | { | |
6102 | struct devlink *devlink = info->user_ptr[0]; | |
544e7c33 | 6103 | struct devlink_port *port = NULL; |
d8db7ea5 AV |
6104 | struct devlink_region *region; |
6105 | const char *region_name; | |
6106 | struct sk_buff *msg; | |
544e7c33 | 6107 | unsigned int index; |
d8db7ea5 AV |
6108 | int err; |
6109 | ||
6110 | if (!info->attrs[DEVLINK_ATTR_REGION_NAME]) | |
6111 | return -EINVAL; | |
6112 | ||
544e7c33 AL |
6113 | if (info->attrs[DEVLINK_ATTR_PORT_INDEX]) { |
6114 | index = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_INDEX]); | |
6115 | ||
6116 | port = devlink_port_get_by_index(devlink, index); | |
6117 | if (!port) | |
6118 | return -ENODEV; | |
6119 | } | |
6120 | ||
d8db7ea5 | 6121 | region_name = nla_data(info->attrs[DEVLINK_ATTR_REGION_NAME]); |
544e7c33 AL |
6122 | if (port) |
6123 | region = devlink_port_region_get_by_name(port, region_name); | |
6124 | else | |
6125 | region = devlink_region_get_by_name(devlink, region_name); | |
6126 | ||
d8db7ea5 AV |
6127 | if (!region) |
6128 | return -EINVAL; | |
6129 | ||
6130 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
6131 | if (!msg) | |
6132 | return -ENOMEM; | |
6133 | ||
6134 | err = devlink_nl_region_fill(msg, devlink, DEVLINK_CMD_REGION_GET, | |
6135 | info->snd_portid, info->snd_seq, 0, | |
6136 | region); | |
6137 | if (err) { | |
6138 | nlmsg_free(msg); | |
6139 | return err; | |
6140 | } | |
6141 | ||
6142 | return genlmsg_reply(msg, info); | |
6143 | } | |
6144 | ||
544e7c33 AL |
6145 | static int devlink_nl_cmd_region_get_port_dumpit(struct sk_buff *msg, |
6146 | struct netlink_callback *cb, | |
6147 | struct devlink_port *port, | |
6148 | int *idx, | |
6149 | int start) | |
6150 | { | |
6151 | struct devlink_region *region; | |
6152 | int err = 0; | |
6153 | ||
6154 | list_for_each_entry(region, &port->region_list, list) { | |
6155 | if (*idx < start) { | |
6156 | (*idx)++; | |
6157 | continue; | |
6158 | } | |
6159 | err = devlink_nl_region_fill(msg, port->devlink, | |
6160 | DEVLINK_CMD_REGION_GET, | |
6161 | NETLINK_CB(cb->skb).portid, | |
6162 | cb->nlh->nlmsg_seq, | |
6163 | NLM_F_MULTI, region); | |
6164 | if (err) | |
6165 | goto out; | |
6166 | (*idx)++; | |
6167 | } | |
6168 | ||
6169 | out: | |
6170 | return err; | |
6171 | } | |
6172 | ||
6173 | static int devlink_nl_cmd_region_get_devlink_dumpit(struct sk_buff *msg, | |
6174 | struct netlink_callback *cb, | |
6175 | struct devlink *devlink, | |
6176 | int *idx, | |
6177 | int start) | |
6178 | { | |
6179 | struct devlink_region *region; | |
6180 | struct devlink_port *port; | |
6181 | int err = 0; | |
6182 | ||
7715023a | 6183 | devl_lock(devlink); |
544e7c33 AL |
6184 | list_for_each_entry(region, &devlink->region_list, list) { |
6185 | if (*idx < start) { | |
6186 | (*idx)++; | |
6187 | continue; | |
6188 | } | |
6189 | err = devlink_nl_region_fill(msg, devlink, | |
6190 | DEVLINK_CMD_REGION_GET, | |
6191 | NETLINK_CB(cb->skb).portid, | |
6192 | cb->nlh->nlmsg_seq, | |
6193 | NLM_F_MULTI, region); | |
6194 | if (err) | |
6195 | goto out; | |
6196 | (*idx)++; | |
6197 | } | |
6198 | ||
6199 | list_for_each_entry(port, &devlink->port_list, list) { | |
6200 | err = devlink_nl_cmd_region_get_port_dumpit(msg, cb, port, idx, | |
6201 | start); | |
6202 | if (err) | |
6203 | goto out; | |
6204 | } | |
6205 | ||
6206 | out: | |
7715023a | 6207 | devl_unlock(devlink); |
544e7c33 AL |
6208 | return err; |
6209 | } | |
6210 | ||
d8db7ea5 AV |
6211 | static int devlink_nl_cmd_region_get_dumpit(struct sk_buff *msg, |
6212 | struct netlink_callback *cb) | |
6213 | { | |
d8db7ea5 AV |
6214 | struct devlink *devlink; |
6215 | int start = cb->args[0]; | |
11a861d7 | 6216 | unsigned long index; |
d8db7ea5 | 6217 | int idx = 0; |
437ebfd9 | 6218 | int err = 0; |
d8db7ea5 AV |
6219 | |
6220 | mutex_lock(&devlink_mutex); | |
294c4f57 | 6221 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
544e7c33 AL |
6222 | err = devlink_nl_cmd_region_get_devlink_dumpit(msg, cb, devlink, |
6223 | &idx, start); | |
437ebfd9 | 6224 | devlink_put(devlink); |
544e7c33 AL |
6225 | if (err) |
6226 | goto out; | |
d8db7ea5 AV |
6227 | } |
6228 | out: | |
6229 | mutex_unlock(&devlink_mutex); | |
6230 | cb->args[0] = idx; | |
6231 | return msg->len; | |
6232 | } | |
6233 | ||
866319bb AV |
6234 | static int devlink_nl_cmd_region_del(struct sk_buff *skb, |
6235 | struct genl_info *info) | |
6236 | { | |
6237 | struct devlink *devlink = info->user_ptr[0]; | |
6238 | struct devlink_snapshot *snapshot; | |
544e7c33 | 6239 | struct devlink_port *port = NULL; |
866319bb AV |
6240 | struct devlink_region *region; |
6241 | const char *region_name; | |
544e7c33 | 6242 | unsigned int index; |
866319bb AV |
6243 | u32 snapshot_id; |
6244 | ||
6245 | if (!info->attrs[DEVLINK_ATTR_REGION_NAME] || | |
6246 | !info->attrs[DEVLINK_ATTR_REGION_SNAPSHOT_ID]) | |
6247 | return -EINVAL; | |
6248 | ||
6249 | region_name = nla_data(info->attrs[DEVLINK_ATTR_REGION_NAME]); | |
6250 | snapshot_id = nla_get_u32(info->attrs[DEVLINK_ATTR_REGION_SNAPSHOT_ID]); | |
6251 | ||
544e7c33 AL |
6252 | if (info->attrs[DEVLINK_ATTR_PORT_INDEX]) { |
6253 | index = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_INDEX]); | |
6254 | ||
6255 | port = devlink_port_get_by_index(devlink, index); | |
6256 | if (!port) | |
6257 | return -ENODEV; | |
6258 | } | |
6259 | ||
6260 | if (port) | |
6261 | region = devlink_port_region_get_by_name(port, region_name); | |
6262 | else | |
6263 | region = devlink_region_get_by_name(devlink, region_name); | |
6264 | ||
866319bb AV |
6265 | if (!region) |
6266 | return -EINVAL; | |
6267 | ||
2dec18ad | 6268 | mutex_lock(®ion->snapshot_lock); |
866319bb | 6269 | snapshot = devlink_region_snapshot_get_by_id(region, snapshot_id); |
2dec18ad JP |
6270 | if (!snapshot) { |
6271 | mutex_unlock(®ion->snapshot_lock); | |
866319bb | 6272 | return -EINVAL; |
2dec18ad | 6273 | } |
866319bb | 6274 | |
92b49822 | 6275 | devlink_region_snapshot_del(region, snapshot); |
2dec18ad | 6276 | mutex_unlock(®ion->snapshot_lock); |
866319bb AV |
6277 | return 0; |
6278 | } | |
6279 | ||
b9a17abf JK |
6280 | static int |
6281 | devlink_nl_cmd_region_new(struct sk_buff *skb, struct genl_info *info) | |
6282 | { | |
6283 | struct devlink *devlink = info->user_ptr[0]; | |
043b3e22 | 6284 | struct devlink_snapshot *snapshot; |
544e7c33 | 6285 | struct devlink_port *port = NULL; |
043b3e22 | 6286 | struct nlattr *snapshot_id_attr; |
b9a17abf JK |
6287 | struct devlink_region *region; |
6288 | const char *region_name; | |
544e7c33 | 6289 | unsigned int index; |
b9a17abf JK |
6290 | u32 snapshot_id; |
6291 | u8 *data; | |
6292 | int err; | |
6293 | ||
6294 | if (!info->attrs[DEVLINK_ATTR_REGION_NAME]) { | |
6295 | NL_SET_ERR_MSG_MOD(info->extack, "No region name provided"); | |
6296 | return -EINVAL; | |
6297 | } | |
6298 | ||
b9a17abf | 6299 | region_name = nla_data(info->attrs[DEVLINK_ATTR_REGION_NAME]); |
544e7c33 AL |
6300 | |
6301 | if (info->attrs[DEVLINK_ATTR_PORT_INDEX]) { | |
6302 | index = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_INDEX]); | |
6303 | ||
6304 | port = devlink_port_get_by_index(devlink, index); | |
6305 | if (!port) | |
6306 | return -ENODEV; | |
6307 | } | |
6308 | ||
6309 | if (port) | |
6310 | region = devlink_port_region_get_by_name(port, region_name); | |
6311 | else | |
6312 | region = devlink_region_get_by_name(devlink, region_name); | |
6313 | ||
b9a17abf JK |
6314 | if (!region) { |
6315 | NL_SET_ERR_MSG_MOD(info->extack, "The requested region does not exist"); | |
6316 | return -EINVAL; | |
6317 | } | |
6318 | ||
6319 | if (!region->ops->snapshot) { | |
6320 | NL_SET_ERR_MSG_MOD(info->extack, "The requested region does not support taking an immediate snapshot"); | |
6321 | return -EOPNOTSUPP; | |
6322 | } | |
6323 | ||
2dec18ad JP |
6324 | mutex_lock(®ion->snapshot_lock); |
6325 | ||
b9a17abf JK |
6326 | if (region->cur_snapshots == region->max_snapshots) { |
6327 | NL_SET_ERR_MSG_MOD(info->extack, "The region has reached the maximum number of stored snapshots"); | |
2dec18ad JP |
6328 | err = -ENOSPC; |
6329 | goto unlock; | |
b9a17abf JK |
6330 | } |
6331 | ||
043b3e22 JK |
6332 | snapshot_id_attr = info->attrs[DEVLINK_ATTR_REGION_SNAPSHOT_ID]; |
6333 | if (snapshot_id_attr) { | |
6334 | snapshot_id = nla_get_u32(snapshot_id_attr); | |
b9a17abf | 6335 | |
043b3e22 JK |
6336 | if (devlink_region_snapshot_get_by_id(region, snapshot_id)) { |
6337 | NL_SET_ERR_MSG_MOD(info->extack, "The requested snapshot id is already in use"); | |
2dec18ad JP |
6338 | err = -EEXIST; |
6339 | goto unlock; | |
043b3e22 | 6340 | } |
b9a17abf | 6341 | |
043b3e22 JK |
6342 | err = __devlink_snapshot_id_insert(devlink, snapshot_id); |
6343 | if (err) | |
2dec18ad | 6344 | goto unlock; |
043b3e22 JK |
6345 | } else { |
6346 | err = __devlink_region_snapshot_id_get(devlink, &snapshot_id); | |
6347 | if (err) { | |
6348 | NL_SET_ERR_MSG_MOD(info->extack, "Failed to allocate a new snapshot id"); | |
2dec18ad | 6349 | goto unlock; |
043b3e22 JK |
6350 | } |
6351 | } | |
b9a17abf | 6352 | |
544e7c33 AL |
6353 | if (port) |
6354 | err = region->port_ops->snapshot(port, region->port_ops, | |
6355 | info->extack, &data); | |
6356 | else | |
6357 | err = region->ops->snapshot(devlink, region->ops, | |
6358 | info->extack, &data); | |
b9a17abf JK |
6359 | if (err) |
6360 | goto err_snapshot_capture; | |
6361 | ||
6362 | err = __devlink_region_snapshot_create(region, data, snapshot_id); | |
6363 | if (err) | |
6364 | goto err_snapshot_create; | |
6365 | ||
043b3e22 JK |
6366 | if (!snapshot_id_attr) { |
6367 | struct sk_buff *msg; | |
6368 | ||
6369 | snapshot = devlink_region_snapshot_get_by_id(region, | |
6370 | snapshot_id); | |
6371 | if (WARN_ON(!snapshot)) | |
6372 | return -EINVAL; | |
6373 | ||
6374 | msg = devlink_nl_region_notify_build(region, snapshot, | |
6375 | DEVLINK_CMD_REGION_NEW, | |
6376 | info->snd_portid, | |
6377 | info->snd_seq); | |
6378 | err = PTR_ERR_OR_ZERO(msg); | |
6379 | if (err) | |
6380 | goto err_notify; | |
6381 | ||
6382 | err = genlmsg_reply(msg, info); | |
6383 | if (err) | |
6384 | goto err_notify; | |
6385 | } | |
6386 | ||
2dec18ad | 6387 | mutex_unlock(®ion->snapshot_lock); |
b9a17abf JK |
6388 | return 0; |
6389 | ||
6390 | err_snapshot_create: | |
6391 | region->ops->destructor(data); | |
6392 | err_snapshot_capture: | |
6393 | __devlink_snapshot_id_decrement(devlink, snapshot_id); | |
2dec18ad | 6394 | mutex_unlock(®ion->snapshot_lock); |
b9a17abf | 6395 | return err; |
043b3e22 JK |
6396 | |
6397 | err_notify: | |
6398 | devlink_region_snapshot_del(region, snapshot); | |
2dec18ad JP |
6399 | unlock: |
6400 | mutex_unlock(®ion->snapshot_lock); | |
043b3e22 | 6401 | return err; |
b9a17abf JK |
6402 | } |
6403 | ||
4e54795a AV |
6404 | static int devlink_nl_cmd_region_read_chunk_fill(struct sk_buff *msg, |
6405 | struct devlink *devlink, | |
6406 | u8 *chunk, u32 chunk_size, | |
6407 | u64 addr) | |
6408 | { | |
6409 | struct nlattr *chunk_attr; | |
6410 | int err; | |
6411 | ||
ae0be8de | 6412 | chunk_attr = nla_nest_start_noflag(msg, DEVLINK_ATTR_REGION_CHUNK); |
4e54795a AV |
6413 | if (!chunk_attr) |
6414 | return -EINVAL; | |
6415 | ||
6416 | err = nla_put(msg, DEVLINK_ATTR_REGION_CHUNK_DATA, chunk_size, chunk); | |
6417 | if (err) | |
6418 | goto nla_put_failure; | |
6419 | ||
6420 | err = nla_put_u64_64bit(msg, DEVLINK_ATTR_REGION_CHUNK_ADDR, addr, | |
6421 | DEVLINK_ATTR_PAD); | |
6422 | if (err) | |
6423 | goto nla_put_failure; | |
6424 | ||
6425 | nla_nest_end(msg, chunk_attr); | |
6426 | return 0; | |
6427 | ||
6428 | nla_put_failure: | |
6429 | nla_nest_cancel(msg, chunk_attr); | |
6430 | return err; | |
6431 | } | |
6432 | ||
6433 | #define DEVLINK_REGION_READ_CHUNK_SIZE 256 | |
6434 | ||
6435 | static int devlink_nl_region_read_snapshot_fill(struct sk_buff *skb, | |
6436 | struct devlink *devlink, | |
6437 | struct devlink_region *region, | |
6438 | struct nlattr **attrs, | |
6439 | u64 start_offset, | |
6440 | u64 end_offset, | |
4e54795a AV |
6441 | u64 *new_offset) |
6442 | { | |
6443 | struct devlink_snapshot *snapshot; | |
6444 | u64 curr_offset = start_offset; | |
6445 | u32 snapshot_id; | |
6446 | int err = 0; | |
6447 | ||
6448 | *new_offset = start_offset; | |
6449 | ||
6450 | snapshot_id = nla_get_u32(attrs[DEVLINK_ATTR_REGION_SNAPSHOT_ID]); | |
6451 | snapshot = devlink_region_snapshot_get_by_id(region, snapshot_id); | |
6452 | if (!snapshot) | |
6453 | return -EINVAL; | |
6454 | ||
4e54795a AV |
6455 | while (curr_offset < end_offset) { |
6456 | u32 data_size; | |
6457 | u8 *data; | |
6458 | ||
6459 | if (end_offset - curr_offset < DEVLINK_REGION_READ_CHUNK_SIZE) | |
6460 | data_size = end_offset - curr_offset; | |
6461 | else | |
6462 | data_size = DEVLINK_REGION_READ_CHUNK_SIZE; | |
6463 | ||
6464 | data = &snapshot->data[curr_offset]; | |
6465 | err = devlink_nl_cmd_region_read_chunk_fill(skb, devlink, | |
6466 | data, data_size, | |
6467 | curr_offset); | |
6468 | if (err) | |
6469 | break; | |
6470 | ||
6471 | curr_offset += data_size; | |
6472 | } | |
6473 | *new_offset = curr_offset; | |
6474 | ||
6475 | return err; | |
6476 | } | |
6477 | ||
6478 | static int devlink_nl_cmd_region_read_dumpit(struct sk_buff *skb, | |
6479 | struct netlink_callback *cb) | |
6480 | { | |
ee85da53 | 6481 | const struct genl_dumpit_info *info = genl_dumpit_info(cb); |
5a46b062 | 6482 | u64 ret_offset, start_offset, end_offset = U64_MAX; |
ee85da53 | 6483 | struct nlattr **attrs = info->attrs; |
544e7c33 | 6484 | struct devlink_port *port = NULL; |
4e54795a AV |
6485 | struct devlink_region *region; |
6486 | struct nlattr *chunks_attr; | |
6487 | const char *region_name; | |
6488 | struct devlink *devlink; | |
544e7c33 | 6489 | unsigned int index; |
4e54795a AV |
6490 | void *hdr; |
6491 | int err; | |
6492 | ||
6493 | start_offset = *((u64 *)&cb->args[0]); | |
6494 | ||
dac7c08f | 6495 | mutex_lock(&devlink_mutex); |
4e54795a | 6496 | devlink = devlink_get_from_attrs(sock_net(cb->skb->sk), attrs); |
fdd41ec2 PP |
6497 | if (IS_ERR(devlink)) { |
6498 | err = PTR_ERR(devlink); | |
dac7c08f | 6499 | goto out_dev; |
fdd41ec2 | 6500 | } |
4e54795a | 6501 | |
7715023a | 6502 | devl_lock(devlink); |
4e54795a AV |
6503 | |
6504 | if (!attrs[DEVLINK_ATTR_REGION_NAME] || | |
fdd41ec2 PP |
6505 | !attrs[DEVLINK_ATTR_REGION_SNAPSHOT_ID]) { |
6506 | err = -EINVAL; | |
4e54795a | 6507 | goto out_unlock; |
fdd41ec2 | 6508 | } |
4e54795a | 6509 | |
544e7c33 AL |
6510 | if (info->attrs[DEVLINK_ATTR_PORT_INDEX]) { |
6511 | index = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_INDEX]); | |
6512 | ||
6513 | port = devlink_port_get_by_index(devlink, index); | |
0d8cb946 DC |
6514 | if (!port) { |
6515 | err = -ENODEV; | |
6516 | goto out_unlock; | |
6517 | } | |
544e7c33 AL |
6518 | } |
6519 | ||
4e54795a | 6520 | region_name = nla_data(attrs[DEVLINK_ATTR_REGION_NAME]); |
544e7c33 AL |
6521 | |
6522 | if (port) | |
6523 | region = devlink_port_region_get_by_name(port, region_name); | |
6524 | else | |
6525 | region = devlink_region_get_by_name(devlink, region_name); | |
6526 | ||
fdd41ec2 PP |
6527 | if (!region) { |
6528 | err = -EINVAL; | |
4e54795a | 6529 | goto out_unlock; |
fdd41ec2 | 6530 | } |
4e54795a | 6531 | |
5a46b062 JK |
6532 | if (attrs[DEVLINK_ATTR_REGION_CHUNK_ADDR] && |
6533 | attrs[DEVLINK_ATTR_REGION_CHUNK_LEN]) { | |
6534 | if (!start_offset) | |
6535 | start_offset = | |
6536 | nla_get_u64(attrs[DEVLINK_ATTR_REGION_CHUNK_ADDR]); | |
6537 | ||
6538 | end_offset = nla_get_u64(attrs[DEVLINK_ATTR_REGION_CHUNK_ADDR]); | |
6539 | end_offset += nla_get_u64(attrs[DEVLINK_ATTR_REGION_CHUNK_LEN]); | |
6540 | } | |
6541 | ||
6542 | if (end_offset > region->size) | |
6543 | end_offset = region->size; | |
6544 | ||
d5b90e99 | 6545 | /* return 0 if there is no further data to read */ |
5a46b062 | 6546 | if (start_offset == end_offset) { |
d5b90e99 JK |
6547 | err = 0; |
6548 | goto out_unlock; | |
6549 | } | |
6550 | ||
4e54795a AV |
6551 | hdr = genlmsg_put(skb, NETLINK_CB(cb->skb).portid, cb->nlh->nlmsg_seq, |
6552 | &devlink_nl_family, NLM_F_ACK | NLM_F_MULTI, | |
6553 | DEVLINK_CMD_REGION_READ); | |
fdd41ec2 PP |
6554 | if (!hdr) { |
6555 | err = -EMSGSIZE; | |
4e54795a | 6556 | goto out_unlock; |
fdd41ec2 | 6557 | } |
4e54795a AV |
6558 | |
6559 | err = devlink_nl_put_handle(skb, devlink); | |
6560 | if (err) | |
6561 | goto nla_put_failure; | |
6562 | ||
6c211809 DC |
6563 | if (region->port) { |
6564 | err = nla_put_u32(skb, DEVLINK_ATTR_PORT_INDEX, | |
6565 | region->port->index); | |
6566 | if (err) | |
544e7c33 | 6567 | goto nla_put_failure; |
6c211809 | 6568 | } |
544e7c33 | 6569 | |
4e54795a AV |
6570 | err = nla_put_string(skb, DEVLINK_ATTR_REGION_NAME, region_name); |
6571 | if (err) | |
6572 | goto nla_put_failure; | |
6573 | ||
ae0be8de | 6574 | chunks_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_REGION_CHUNKS); |
fdd41ec2 PP |
6575 | if (!chunks_attr) { |
6576 | err = -EMSGSIZE; | |
4e54795a | 6577 | goto nla_put_failure; |
fdd41ec2 | 6578 | } |
4e54795a | 6579 | |
4e54795a AV |
6580 | err = devlink_nl_region_read_snapshot_fill(skb, devlink, |
6581 | region, attrs, | |
6582 | start_offset, | |
5a46b062 | 6583 | end_offset, &ret_offset); |
4e54795a AV |
6584 | |
6585 | if (err && err != -EMSGSIZE) | |
6586 | goto nla_put_failure; | |
6587 | ||
6588 | /* Check if there was any progress done to prevent infinite loop */ | |
fdd41ec2 PP |
6589 | if (ret_offset == start_offset) { |
6590 | err = -EINVAL; | |
4e54795a | 6591 | goto nla_put_failure; |
fdd41ec2 | 6592 | } |
4e54795a AV |
6593 | |
6594 | *((u64 *)&cb->args[0]) = ret_offset; | |
6595 | ||
6596 | nla_nest_end(skb, chunks_attr); | |
6597 | genlmsg_end(skb, hdr); | |
7715023a | 6598 | devl_unlock(devlink); |
437ebfd9 | 6599 | devlink_put(devlink); |
4e54795a AV |
6600 | mutex_unlock(&devlink_mutex); |
6601 | ||
6602 | return skb->len; | |
6603 | ||
6604 | nla_put_failure: | |
6605 | genlmsg_cancel(skb, hdr); | |
6606 | out_unlock: | |
7715023a | 6607 | devl_unlock(devlink); |
437ebfd9 | 6608 | devlink_put(devlink); |
dac7c08f | 6609 | out_dev: |
4e54795a | 6610 | mutex_unlock(&devlink_mutex); |
fdd41ec2 | 6611 | return err; |
4e54795a AV |
6612 | } |
6613 | ||
c4a67a21 JK |
6614 | struct devlink_info_req { |
6615 | struct sk_buff *msg; | |
6616 | }; | |
6617 | ||
f9cf2288 JK |
6618 | int devlink_info_driver_name_put(struct devlink_info_req *req, const char *name) |
6619 | { | |
6620 | return nla_put_string(req->msg, DEVLINK_ATTR_INFO_DRIVER_NAME, name); | |
6621 | } | |
6622 | EXPORT_SYMBOL_GPL(devlink_info_driver_name_put); | |
6623 | ||
6624 | int devlink_info_serial_number_put(struct devlink_info_req *req, const char *sn) | |
6625 | { | |
6626 | return nla_put_string(req->msg, DEVLINK_ATTR_INFO_SERIAL_NUMBER, sn); | |
6627 | } | |
6628 | EXPORT_SYMBOL_GPL(devlink_info_serial_number_put); | |
6629 | ||
b5872cd0 VV |
6630 | int devlink_info_board_serial_number_put(struct devlink_info_req *req, |
6631 | const char *bsn) | |
6632 | { | |
6633 | return nla_put_string(req->msg, DEVLINK_ATTR_INFO_BOARD_SERIAL_NUMBER, | |
6634 | bsn); | |
6635 | } | |
6636 | EXPORT_SYMBOL_GPL(devlink_info_board_serial_number_put); | |
6637 | ||
fc6fae7d JK |
6638 | static int devlink_info_version_put(struct devlink_info_req *req, int attr, |
6639 | const char *version_name, | |
6640 | const char *version_value) | |
6641 | { | |
6642 | struct nlattr *nest; | |
6643 | int err; | |
6644 | ||
ae0be8de | 6645 | nest = nla_nest_start_noflag(req->msg, attr); |
fc6fae7d JK |
6646 | if (!nest) |
6647 | return -EMSGSIZE; | |
6648 | ||
6649 | err = nla_put_string(req->msg, DEVLINK_ATTR_INFO_VERSION_NAME, | |
6650 | version_name); | |
6651 | if (err) | |
6652 | goto nla_put_failure; | |
6653 | ||
6654 | err = nla_put_string(req->msg, DEVLINK_ATTR_INFO_VERSION_VALUE, | |
6655 | version_value); | |
6656 | if (err) | |
6657 | goto nla_put_failure; | |
6658 | ||
6659 | nla_nest_end(req->msg, nest); | |
6660 | ||
6661 | return 0; | |
6662 | ||
6663 | nla_put_failure: | |
6664 | nla_nest_cancel(req->msg, nest); | |
6665 | return err; | |
6666 | } | |
6667 | ||
6668 | int devlink_info_version_fixed_put(struct devlink_info_req *req, | |
6669 | const char *version_name, | |
6670 | const char *version_value) | |
6671 | { | |
6672 | return devlink_info_version_put(req, DEVLINK_ATTR_INFO_VERSION_FIXED, | |
6673 | version_name, version_value); | |
6674 | } | |
6675 | EXPORT_SYMBOL_GPL(devlink_info_version_fixed_put); | |
6676 | ||
6677 | int devlink_info_version_stored_put(struct devlink_info_req *req, | |
6678 | const char *version_name, | |
6679 | const char *version_value) | |
6680 | { | |
6681 | return devlink_info_version_put(req, DEVLINK_ATTR_INFO_VERSION_STORED, | |
6682 | version_name, version_value); | |
6683 | } | |
6684 | EXPORT_SYMBOL_GPL(devlink_info_version_stored_put); | |
6685 | ||
6686 | int devlink_info_version_running_put(struct devlink_info_req *req, | |
6687 | const char *version_name, | |
6688 | const char *version_value) | |
6689 | { | |
6690 | return devlink_info_version_put(req, DEVLINK_ATTR_INFO_VERSION_RUNNING, | |
6691 | version_name, version_value); | |
6692 | } | |
6693 | EXPORT_SYMBOL_GPL(devlink_info_version_running_put); | |
6694 | ||
f9cf2288 JK |
6695 | static int |
6696 | devlink_nl_info_fill(struct sk_buff *msg, struct devlink *devlink, | |
6697 | enum devlink_command cmd, u32 portid, | |
6698 | u32 seq, int flags, struct netlink_ext_ack *extack) | |
6699 | { | |
6700 | struct devlink_info_req req; | |
6701 | void *hdr; | |
6702 | int err; | |
6703 | ||
6704 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
6705 | if (!hdr) | |
6706 | return -EMSGSIZE; | |
6707 | ||
6708 | err = -EMSGSIZE; | |
6709 | if (devlink_nl_put_handle(msg, devlink)) | |
6710 | goto err_cancel_msg; | |
6711 | ||
6712 | req.msg = msg; | |
6713 | err = devlink->ops->info_get(devlink, &req, extack); | |
6714 | if (err) | |
6715 | goto err_cancel_msg; | |
6716 | ||
6717 | genlmsg_end(msg, hdr); | |
6718 | return 0; | |
6719 | ||
6720 | err_cancel_msg: | |
6721 | genlmsg_cancel(msg, hdr); | |
6722 | return err; | |
6723 | } | |
6724 | ||
6725 | static int devlink_nl_cmd_info_get_doit(struct sk_buff *skb, | |
6726 | struct genl_info *info) | |
6727 | { | |
6728 | struct devlink *devlink = info->user_ptr[0]; | |
6729 | struct sk_buff *msg; | |
6730 | int err; | |
6731 | ||
be6fe1d8 | 6732 | if (!devlink->ops->info_get) |
f9cf2288 JK |
6733 | return -EOPNOTSUPP; |
6734 | ||
6735 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
6736 | if (!msg) | |
6737 | return -ENOMEM; | |
6738 | ||
6739 | err = devlink_nl_info_fill(msg, devlink, DEVLINK_CMD_INFO_GET, | |
6740 | info->snd_portid, info->snd_seq, 0, | |
6741 | info->extack); | |
6742 | if (err) { | |
6743 | nlmsg_free(msg); | |
6744 | return err; | |
6745 | } | |
6746 | ||
6747 | return genlmsg_reply(msg, info); | |
6748 | } | |
6749 | ||
6750 | static int devlink_nl_cmd_info_get_dumpit(struct sk_buff *msg, | |
6751 | struct netlink_callback *cb) | |
6752 | { | |
6753 | struct devlink *devlink; | |
6754 | int start = cb->args[0]; | |
11a861d7 | 6755 | unsigned long index; |
f9cf2288 | 6756 | int idx = 0; |
c62c2cfb | 6757 | int err = 0; |
f9cf2288 JK |
6758 | |
6759 | mutex_lock(&devlink_mutex); | |
294c4f57 | 6760 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
437ebfd9 LR |
6761 | if (idx < start || !devlink->ops->info_get) |
6762 | goto inc; | |
c493b09b | 6763 | |
7715023a | 6764 | devl_lock(devlink); |
f9cf2288 JK |
6765 | err = devlink_nl_info_fill(msg, devlink, DEVLINK_CMD_INFO_GET, |
6766 | NETLINK_CB(cb->skb).portid, | |
6767 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
6768 | cb->extack); | |
7715023a | 6769 | devl_unlock(devlink); |
82274d07 JK |
6770 | if (err == -EOPNOTSUPP) |
6771 | err = 0; | |
437ebfd9 LR |
6772 | else if (err) { |
6773 | devlink_put(devlink); | |
f9cf2288 | 6774 | break; |
437ebfd9 LR |
6775 | } |
6776 | inc: | |
f9cf2288 | 6777 | idx++; |
437ebfd9 | 6778 | devlink_put(devlink); |
f9cf2288 JK |
6779 | } |
6780 | mutex_unlock(&devlink_mutex); | |
6781 | ||
c62c2cfb JP |
6782 | if (err != -EMSGSIZE) |
6783 | return err; | |
6784 | ||
f9cf2288 JK |
6785 | cb->args[0] = idx; |
6786 | return msg->len; | |
6787 | } | |
6788 | ||
1db64e87 EBE |
6789 | struct devlink_fmsg_item { |
6790 | struct list_head list; | |
6791 | int attrtype; | |
6792 | u8 nla_type; | |
6793 | u16 len; | |
d2afb41a | 6794 | int value[]; |
1db64e87 EBE |
6795 | }; |
6796 | ||
6797 | struct devlink_fmsg { | |
6798 | struct list_head item_list; | |
573ed90a AL |
6799 | bool putting_binary; /* This flag forces enclosing of binary data |
6800 | * in an array brackets. It forces using | |
6801 | * of designated API: | |
6802 | * devlink_fmsg_binary_pair_nest_start() | |
6803 | * devlink_fmsg_binary_pair_nest_end() | |
6804 | */ | |
1db64e87 EBE |
6805 | }; |
6806 | ||
6807 | static struct devlink_fmsg *devlink_fmsg_alloc(void) | |
6808 | { | |
6809 | struct devlink_fmsg *fmsg; | |
6810 | ||
6811 | fmsg = kzalloc(sizeof(*fmsg), GFP_KERNEL); | |
6812 | if (!fmsg) | |
6813 | return NULL; | |
6814 | ||
6815 | INIT_LIST_HEAD(&fmsg->item_list); | |
6816 | ||
6817 | return fmsg; | |
6818 | } | |
6819 | ||
6820 | static void devlink_fmsg_free(struct devlink_fmsg *fmsg) | |
6821 | { | |
6822 | struct devlink_fmsg_item *item, *tmp; | |
6823 | ||
6824 | list_for_each_entry_safe(item, tmp, &fmsg->item_list, list) { | |
6825 | list_del(&item->list); | |
6826 | kfree(item); | |
6827 | } | |
6828 | kfree(fmsg); | |
6829 | } | |
6830 | ||
6831 | static int devlink_fmsg_nest_common(struct devlink_fmsg *fmsg, | |
6832 | int attrtype) | |
6833 | { | |
6834 | struct devlink_fmsg_item *item; | |
6835 | ||
6836 | item = kzalloc(sizeof(*item), GFP_KERNEL); | |
6837 | if (!item) | |
6838 | return -ENOMEM; | |
6839 | ||
6840 | item->attrtype = attrtype; | |
6841 | list_add_tail(&item->list, &fmsg->item_list); | |
6842 | ||
6843 | return 0; | |
6844 | } | |
6845 | ||
6846 | int devlink_fmsg_obj_nest_start(struct devlink_fmsg *fmsg) | |
6847 | { | |
573ed90a AL |
6848 | if (fmsg->putting_binary) |
6849 | return -EINVAL; | |
6850 | ||
1db64e87 EBE |
6851 | return devlink_fmsg_nest_common(fmsg, DEVLINK_ATTR_FMSG_OBJ_NEST_START); |
6852 | } | |
6853 | EXPORT_SYMBOL_GPL(devlink_fmsg_obj_nest_start); | |
6854 | ||
6855 | static int devlink_fmsg_nest_end(struct devlink_fmsg *fmsg) | |
6856 | { | |
573ed90a AL |
6857 | if (fmsg->putting_binary) |
6858 | return -EINVAL; | |
6859 | ||
1db64e87 EBE |
6860 | return devlink_fmsg_nest_common(fmsg, DEVLINK_ATTR_FMSG_NEST_END); |
6861 | } | |
6862 | ||
6863 | int devlink_fmsg_obj_nest_end(struct devlink_fmsg *fmsg) | |
6864 | { | |
573ed90a AL |
6865 | if (fmsg->putting_binary) |
6866 | return -EINVAL; | |
6867 | ||
1db64e87 EBE |
6868 | return devlink_fmsg_nest_end(fmsg); |
6869 | } | |
6870 | EXPORT_SYMBOL_GPL(devlink_fmsg_obj_nest_end); | |
6871 | ||
6872 | #define DEVLINK_FMSG_MAX_SIZE (GENLMSG_DEFAULT_SIZE - GENL_HDRLEN - NLA_HDRLEN) | |
6873 | ||
6874 | static int devlink_fmsg_put_name(struct devlink_fmsg *fmsg, const char *name) | |
6875 | { | |
6876 | struct devlink_fmsg_item *item; | |
6877 | ||
573ed90a AL |
6878 | if (fmsg->putting_binary) |
6879 | return -EINVAL; | |
6880 | ||
1db64e87 EBE |
6881 | if (strlen(name) + 1 > DEVLINK_FMSG_MAX_SIZE) |
6882 | return -EMSGSIZE; | |
6883 | ||
6884 | item = kzalloc(sizeof(*item) + strlen(name) + 1, GFP_KERNEL); | |
6885 | if (!item) | |
6886 | return -ENOMEM; | |
6887 | ||
6888 | item->nla_type = NLA_NUL_STRING; | |
6889 | item->len = strlen(name) + 1; | |
6890 | item->attrtype = DEVLINK_ATTR_FMSG_OBJ_NAME; | |
6891 | memcpy(&item->value, name, item->len); | |
6892 | list_add_tail(&item->list, &fmsg->item_list); | |
6893 | ||
6894 | return 0; | |
6895 | } | |
6896 | ||
6897 | int devlink_fmsg_pair_nest_start(struct devlink_fmsg *fmsg, const char *name) | |
6898 | { | |
6899 | int err; | |
6900 | ||
573ed90a AL |
6901 | if (fmsg->putting_binary) |
6902 | return -EINVAL; | |
6903 | ||
1db64e87 EBE |
6904 | err = devlink_fmsg_nest_common(fmsg, DEVLINK_ATTR_FMSG_PAIR_NEST_START); |
6905 | if (err) | |
6906 | return err; | |
6907 | ||
6908 | err = devlink_fmsg_put_name(fmsg, name); | |
6909 | if (err) | |
6910 | return err; | |
6911 | ||
6912 | return 0; | |
6913 | } | |
6914 | EXPORT_SYMBOL_GPL(devlink_fmsg_pair_nest_start); | |
6915 | ||
6916 | int devlink_fmsg_pair_nest_end(struct devlink_fmsg *fmsg) | |
6917 | { | |
573ed90a AL |
6918 | if (fmsg->putting_binary) |
6919 | return -EINVAL; | |
6920 | ||
1db64e87 EBE |
6921 | return devlink_fmsg_nest_end(fmsg); |
6922 | } | |
6923 | EXPORT_SYMBOL_GPL(devlink_fmsg_pair_nest_end); | |
6924 | ||
6925 | int devlink_fmsg_arr_pair_nest_start(struct devlink_fmsg *fmsg, | |
6926 | const char *name) | |
6927 | { | |
6928 | int err; | |
6929 | ||
573ed90a AL |
6930 | if (fmsg->putting_binary) |
6931 | return -EINVAL; | |
6932 | ||
1db64e87 EBE |
6933 | err = devlink_fmsg_pair_nest_start(fmsg, name); |
6934 | if (err) | |
6935 | return err; | |
6936 | ||
6937 | err = devlink_fmsg_nest_common(fmsg, DEVLINK_ATTR_FMSG_ARR_NEST_START); | |
6938 | if (err) | |
6939 | return err; | |
6940 | ||
6941 | return 0; | |
6942 | } | |
6943 | EXPORT_SYMBOL_GPL(devlink_fmsg_arr_pair_nest_start); | |
6944 | ||
6945 | int devlink_fmsg_arr_pair_nest_end(struct devlink_fmsg *fmsg) | |
6946 | { | |
6947 | int err; | |
6948 | ||
573ed90a AL |
6949 | if (fmsg->putting_binary) |
6950 | return -EINVAL; | |
6951 | ||
1db64e87 EBE |
6952 | err = devlink_fmsg_nest_end(fmsg); |
6953 | if (err) | |
6954 | return err; | |
6955 | ||
6956 | err = devlink_fmsg_nest_end(fmsg); | |
6957 | if (err) | |
6958 | return err; | |
6959 | ||
6960 | return 0; | |
6961 | } | |
6962 | EXPORT_SYMBOL_GPL(devlink_fmsg_arr_pair_nest_end); | |
6963 | ||
573ed90a AL |
6964 | int devlink_fmsg_binary_pair_nest_start(struct devlink_fmsg *fmsg, |
6965 | const char *name) | |
6966 | { | |
6967 | int err; | |
6968 | ||
6969 | err = devlink_fmsg_arr_pair_nest_start(fmsg, name); | |
6970 | if (err) | |
6971 | return err; | |
6972 | ||
6973 | fmsg->putting_binary = true; | |
6974 | return err; | |
6975 | } | |
6976 | EXPORT_SYMBOL_GPL(devlink_fmsg_binary_pair_nest_start); | |
6977 | ||
6978 | int devlink_fmsg_binary_pair_nest_end(struct devlink_fmsg *fmsg) | |
6979 | { | |
6980 | if (!fmsg->putting_binary) | |
6981 | return -EINVAL; | |
6982 | ||
6983 | fmsg->putting_binary = false; | |
6984 | return devlink_fmsg_arr_pair_nest_end(fmsg); | |
6985 | } | |
6986 | EXPORT_SYMBOL_GPL(devlink_fmsg_binary_pair_nest_end); | |
6987 | ||
1db64e87 EBE |
6988 | static int devlink_fmsg_put_value(struct devlink_fmsg *fmsg, |
6989 | const void *value, u16 value_len, | |
6990 | u8 value_nla_type) | |
6991 | { | |
6992 | struct devlink_fmsg_item *item; | |
6993 | ||
6994 | if (value_len > DEVLINK_FMSG_MAX_SIZE) | |
6995 | return -EMSGSIZE; | |
6996 | ||
6997 | item = kzalloc(sizeof(*item) + value_len, GFP_KERNEL); | |
6998 | if (!item) | |
6999 | return -ENOMEM; | |
7000 | ||
7001 | item->nla_type = value_nla_type; | |
7002 | item->len = value_len; | |
7003 | item->attrtype = DEVLINK_ATTR_FMSG_OBJ_VALUE_DATA; | |
7004 | memcpy(&item->value, value, item->len); | |
7005 | list_add_tail(&item->list, &fmsg->item_list); | |
7006 | ||
7007 | return 0; | |
7008 | } | |
7009 | ||
6db9350a | 7010 | static int devlink_fmsg_bool_put(struct devlink_fmsg *fmsg, bool value) |
1db64e87 | 7011 | { |
573ed90a AL |
7012 | if (fmsg->putting_binary) |
7013 | return -EINVAL; | |
7014 | ||
1db64e87 EBE |
7015 | return devlink_fmsg_put_value(fmsg, &value, sizeof(value), NLA_FLAG); |
7016 | } | |
1db64e87 | 7017 | |
6db9350a | 7018 | static int devlink_fmsg_u8_put(struct devlink_fmsg *fmsg, u8 value) |
1db64e87 | 7019 | { |
573ed90a AL |
7020 | if (fmsg->putting_binary) |
7021 | return -EINVAL; | |
7022 | ||
1db64e87 EBE |
7023 | return devlink_fmsg_put_value(fmsg, &value, sizeof(value), NLA_U8); |
7024 | } | |
1db64e87 EBE |
7025 | |
7026 | int devlink_fmsg_u32_put(struct devlink_fmsg *fmsg, u32 value) | |
7027 | { | |
573ed90a AL |
7028 | if (fmsg->putting_binary) |
7029 | return -EINVAL; | |
7030 | ||
1db64e87 EBE |
7031 | return devlink_fmsg_put_value(fmsg, &value, sizeof(value), NLA_U32); |
7032 | } | |
7033 | EXPORT_SYMBOL_GPL(devlink_fmsg_u32_put); | |
7034 | ||
6db9350a | 7035 | static int devlink_fmsg_u64_put(struct devlink_fmsg *fmsg, u64 value) |
1db64e87 | 7036 | { |
573ed90a AL |
7037 | if (fmsg->putting_binary) |
7038 | return -EINVAL; | |
7039 | ||
1db64e87 EBE |
7040 | return devlink_fmsg_put_value(fmsg, &value, sizeof(value), NLA_U64); |
7041 | } | |
1db64e87 EBE |
7042 | |
7043 | int devlink_fmsg_string_put(struct devlink_fmsg *fmsg, const char *value) | |
7044 | { | |
573ed90a AL |
7045 | if (fmsg->putting_binary) |
7046 | return -EINVAL; | |
7047 | ||
1db64e87 EBE |
7048 | return devlink_fmsg_put_value(fmsg, value, strlen(value) + 1, |
7049 | NLA_NUL_STRING); | |
7050 | } | |
7051 | EXPORT_SYMBOL_GPL(devlink_fmsg_string_put); | |
7052 | ||
573ed90a AL |
7053 | int devlink_fmsg_binary_put(struct devlink_fmsg *fmsg, const void *value, |
7054 | u16 value_len) | |
1db64e87 | 7055 | { |
573ed90a AL |
7056 | if (!fmsg->putting_binary) |
7057 | return -EINVAL; | |
7058 | ||
1db64e87 EBE |
7059 | return devlink_fmsg_put_value(fmsg, value, value_len, NLA_BINARY); |
7060 | } | |
573ed90a | 7061 | EXPORT_SYMBOL_GPL(devlink_fmsg_binary_put); |
1db64e87 EBE |
7062 | |
7063 | int devlink_fmsg_bool_pair_put(struct devlink_fmsg *fmsg, const char *name, | |
7064 | bool value) | |
7065 | { | |
7066 | int err; | |
7067 | ||
7068 | err = devlink_fmsg_pair_nest_start(fmsg, name); | |
7069 | if (err) | |
7070 | return err; | |
7071 | ||
7072 | err = devlink_fmsg_bool_put(fmsg, value); | |
7073 | if (err) | |
7074 | return err; | |
7075 | ||
7076 | err = devlink_fmsg_pair_nest_end(fmsg); | |
7077 | if (err) | |
7078 | return err; | |
7079 | ||
7080 | return 0; | |
7081 | } | |
7082 | EXPORT_SYMBOL_GPL(devlink_fmsg_bool_pair_put); | |
7083 | ||
7084 | int devlink_fmsg_u8_pair_put(struct devlink_fmsg *fmsg, const char *name, | |
7085 | u8 value) | |
7086 | { | |
7087 | int err; | |
7088 | ||
7089 | err = devlink_fmsg_pair_nest_start(fmsg, name); | |
7090 | if (err) | |
7091 | return err; | |
7092 | ||
7093 | err = devlink_fmsg_u8_put(fmsg, value); | |
7094 | if (err) | |
7095 | return err; | |
7096 | ||
7097 | err = devlink_fmsg_pair_nest_end(fmsg); | |
7098 | if (err) | |
7099 | return err; | |
7100 | ||
7101 | return 0; | |
7102 | } | |
7103 | EXPORT_SYMBOL_GPL(devlink_fmsg_u8_pair_put); | |
7104 | ||
7105 | int devlink_fmsg_u32_pair_put(struct devlink_fmsg *fmsg, const char *name, | |
7106 | u32 value) | |
7107 | { | |
7108 | int err; | |
7109 | ||
7110 | err = devlink_fmsg_pair_nest_start(fmsg, name); | |
7111 | if (err) | |
7112 | return err; | |
7113 | ||
7114 | err = devlink_fmsg_u32_put(fmsg, value); | |
7115 | if (err) | |
7116 | return err; | |
7117 | ||
7118 | err = devlink_fmsg_pair_nest_end(fmsg); | |
7119 | if (err) | |
7120 | return err; | |
7121 | ||
7122 | return 0; | |
7123 | } | |
7124 | EXPORT_SYMBOL_GPL(devlink_fmsg_u32_pair_put); | |
7125 | ||
7126 | int devlink_fmsg_u64_pair_put(struct devlink_fmsg *fmsg, const char *name, | |
7127 | u64 value) | |
7128 | { | |
7129 | int err; | |
7130 | ||
7131 | err = devlink_fmsg_pair_nest_start(fmsg, name); | |
7132 | if (err) | |
7133 | return err; | |
7134 | ||
7135 | err = devlink_fmsg_u64_put(fmsg, value); | |
7136 | if (err) | |
7137 | return err; | |
7138 | ||
7139 | err = devlink_fmsg_pair_nest_end(fmsg); | |
7140 | if (err) | |
7141 | return err; | |
7142 | ||
7143 | return 0; | |
7144 | } | |
7145 | EXPORT_SYMBOL_GPL(devlink_fmsg_u64_pair_put); | |
7146 | ||
7147 | int devlink_fmsg_string_pair_put(struct devlink_fmsg *fmsg, const char *name, | |
7148 | const char *value) | |
7149 | { | |
7150 | int err; | |
7151 | ||
7152 | err = devlink_fmsg_pair_nest_start(fmsg, name); | |
7153 | if (err) | |
7154 | return err; | |
7155 | ||
7156 | err = devlink_fmsg_string_put(fmsg, value); | |
7157 | if (err) | |
7158 | return err; | |
7159 | ||
7160 | err = devlink_fmsg_pair_nest_end(fmsg); | |
7161 | if (err) | |
7162 | return err; | |
7163 | ||
7164 | return 0; | |
7165 | } | |
7166 | EXPORT_SYMBOL_GPL(devlink_fmsg_string_pair_put); | |
7167 | ||
7168 | int devlink_fmsg_binary_pair_put(struct devlink_fmsg *fmsg, const char *name, | |
e2cde864 | 7169 | const void *value, u32 value_len) |
1db64e87 | 7170 | { |
e2cde864 | 7171 | u32 data_size; |
573ed90a | 7172 | int end_err; |
e2cde864 | 7173 | u32 offset; |
1db64e87 EBE |
7174 | int err; |
7175 | ||
573ed90a | 7176 | err = devlink_fmsg_binary_pair_nest_start(fmsg, name); |
1db64e87 EBE |
7177 | if (err) |
7178 | return err; | |
7179 | ||
e2cde864 AL |
7180 | for (offset = 0; offset < value_len; offset += data_size) { |
7181 | data_size = value_len - offset; | |
7182 | if (data_size > DEVLINK_FMSG_MAX_SIZE) | |
7183 | data_size = DEVLINK_FMSG_MAX_SIZE; | |
7184 | err = devlink_fmsg_binary_put(fmsg, value + offset, data_size); | |
7185 | if (err) | |
573ed90a AL |
7186 | break; |
7187 | /* Exit from loop with a break (instead of | |
7188 | * return) to make sure putting_binary is turned off in | |
7189 | * devlink_fmsg_binary_pair_nest_end | |
7190 | */ | |
e2cde864 | 7191 | } |
1db64e87 | 7192 | |
573ed90a AL |
7193 | end_err = devlink_fmsg_binary_pair_nest_end(fmsg); |
7194 | if (end_err) | |
7195 | err = end_err; | |
1db64e87 | 7196 | |
573ed90a | 7197 | return err; |
1db64e87 EBE |
7198 | } |
7199 | EXPORT_SYMBOL_GPL(devlink_fmsg_binary_pair_put); | |
7200 | ||
7201 | static int | |
7202 | devlink_fmsg_item_fill_type(struct devlink_fmsg_item *msg, struct sk_buff *skb) | |
7203 | { | |
7204 | switch (msg->nla_type) { | |
7205 | case NLA_FLAG: | |
7206 | case NLA_U8: | |
7207 | case NLA_U32: | |
7208 | case NLA_U64: | |
7209 | case NLA_NUL_STRING: | |
7210 | case NLA_BINARY: | |
7211 | return nla_put_u8(skb, DEVLINK_ATTR_FMSG_OBJ_VALUE_TYPE, | |
7212 | msg->nla_type); | |
7213 | default: | |
7214 | return -EINVAL; | |
7215 | } | |
7216 | } | |
7217 | ||
7218 | static int | |
7219 | devlink_fmsg_item_fill_data(struct devlink_fmsg_item *msg, struct sk_buff *skb) | |
7220 | { | |
7221 | int attrtype = DEVLINK_ATTR_FMSG_OBJ_VALUE_DATA; | |
7222 | u8 tmp; | |
7223 | ||
7224 | switch (msg->nla_type) { | |
7225 | case NLA_FLAG: | |
7226 | /* Always provide flag data, regardless of its value */ | |
7227 | tmp = *(bool *) msg->value; | |
7228 | ||
7229 | return nla_put_u8(skb, attrtype, tmp); | |
7230 | case NLA_U8: | |
7231 | return nla_put_u8(skb, attrtype, *(u8 *) msg->value); | |
7232 | case NLA_U32: | |
7233 | return nla_put_u32(skb, attrtype, *(u32 *) msg->value); | |
7234 | case NLA_U64: | |
7235 | return nla_put_u64_64bit(skb, attrtype, *(u64 *) msg->value, | |
7236 | DEVLINK_ATTR_PAD); | |
7237 | case NLA_NUL_STRING: | |
7238 | return nla_put_string(skb, attrtype, (char *) &msg->value); | |
7239 | case NLA_BINARY: | |
7240 | return nla_put(skb, attrtype, msg->len, (void *) &msg->value); | |
7241 | default: | |
7242 | return -EINVAL; | |
7243 | } | |
7244 | } | |
7245 | ||
7246 | static int | |
7247 | devlink_fmsg_prepare_skb(struct devlink_fmsg *fmsg, struct sk_buff *skb, | |
7248 | int *start) | |
7249 | { | |
7250 | struct devlink_fmsg_item *item; | |
7251 | struct nlattr *fmsg_nlattr; | |
7252 | int i = 0; | |
7253 | int err; | |
7254 | ||
ae0be8de | 7255 | fmsg_nlattr = nla_nest_start_noflag(skb, DEVLINK_ATTR_FMSG); |
1db64e87 EBE |
7256 | if (!fmsg_nlattr) |
7257 | return -EMSGSIZE; | |
7258 | ||
7259 | list_for_each_entry(item, &fmsg->item_list, list) { | |
7260 | if (i < *start) { | |
7261 | i++; | |
7262 | continue; | |
7263 | } | |
7264 | ||
7265 | switch (item->attrtype) { | |
7266 | case DEVLINK_ATTR_FMSG_OBJ_NEST_START: | |
7267 | case DEVLINK_ATTR_FMSG_PAIR_NEST_START: | |
7268 | case DEVLINK_ATTR_FMSG_ARR_NEST_START: | |
7269 | case DEVLINK_ATTR_FMSG_NEST_END: | |
7270 | err = nla_put_flag(skb, item->attrtype); | |
7271 | break; | |
7272 | case DEVLINK_ATTR_FMSG_OBJ_VALUE_DATA: | |
7273 | err = devlink_fmsg_item_fill_type(item, skb); | |
7274 | if (err) | |
7275 | break; | |
7276 | err = devlink_fmsg_item_fill_data(item, skb); | |
7277 | break; | |
7278 | case DEVLINK_ATTR_FMSG_OBJ_NAME: | |
7279 | err = nla_put_string(skb, item->attrtype, | |
7280 | (char *) &item->value); | |
7281 | break; | |
7282 | default: | |
7283 | err = -EINVAL; | |
7284 | break; | |
7285 | } | |
7286 | if (!err) | |
7287 | *start = ++i; | |
7288 | else | |
7289 | break; | |
7290 | } | |
7291 | ||
7292 | nla_nest_end(skb, fmsg_nlattr); | |
7293 | return err; | |
7294 | } | |
7295 | ||
7296 | static int devlink_fmsg_snd(struct devlink_fmsg *fmsg, | |
7297 | struct genl_info *info, | |
7298 | enum devlink_command cmd, int flags) | |
7299 | { | |
7300 | struct nlmsghdr *nlh; | |
7301 | struct sk_buff *skb; | |
7302 | bool last = false; | |
7303 | int index = 0; | |
7304 | void *hdr; | |
7305 | int err; | |
7306 | ||
7307 | while (!last) { | |
7308 | int tmp_index = index; | |
7309 | ||
7310 | skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
7311 | if (!skb) | |
7312 | return -ENOMEM; | |
7313 | ||
7314 | hdr = genlmsg_put(skb, info->snd_portid, info->snd_seq, | |
7315 | &devlink_nl_family, flags | NLM_F_MULTI, cmd); | |
7316 | if (!hdr) { | |
7317 | err = -EMSGSIZE; | |
7318 | goto nla_put_failure; | |
7319 | } | |
7320 | ||
7321 | err = devlink_fmsg_prepare_skb(fmsg, skb, &index); | |
7322 | if (!err) | |
7323 | last = true; | |
7324 | else if (err != -EMSGSIZE || tmp_index == index) | |
7325 | goto nla_put_failure; | |
7326 | ||
7327 | genlmsg_end(skb, hdr); | |
7328 | err = genlmsg_reply(skb, info); | |
7329 | if (err) | |
7330 | return err; | |
7331 | } | |
7332 | ||
7333 | skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
7334 | if (!skb) | |
7335 | return -ENOMEM; | |
7336 | nlh = nlmsg_put(skb, info->snd_portid, info->snd_seq, | |
7337 | NLMSG_DONE, 0, flags | NLM_F_MULTI); | |
7338 | if (!nlh) { | |
7339 | err = -EMSGSIZE; | |
7340 | goto nla_put_failure; | |
7341 | } | |
1db64e87 | 7342 | |
fde55ea7 | 7343 | return genlmsg_reply(skb, info); |
1db64e87 EBE |
7344 | |
7345 | nla_put_failure: | |
7346 | nlmsg_free(skb); | |
7347 | return err; | |
7348 | } | |
7349 | ||
e44ef4e4 AL |
7350 | static int devlink_fmsg_dumpit(struct devlink_fmsg *fmsg, struct sk_buff *skb, |
7351 | struct netlink_callback *cb, | |
7352 | enum devlink_command cmd) | |
7353 | { | |
7354 | int index = cb->args[0]; | |
7355 | int tmp_index = index; | |
7356 | void *hdr; | |
7357 | int err; | |
7358 | ||
7359 | hdr = genlmsg_put(skb, NETLINK_CB(cb->skb).portid, cb->nlh->nlmsg_seq, | |
7360 | &devlink_nl_family, NLM_F_ACK | NLM_F_MULTI, cmd); | |
7361 | if (!hdr) { | |
7362 | err = -EMSGSIZE; | |
7363 | goto nla_put_failure; | |
7364 | } | |
7365 | ||
7366 | err = devlink_fmsg_prepare_skb(fmsg, skb, &index); | |
7367 | if ((err && err != -EMSGSIZE) || tmp_index == index) | |
7368 | goto nla_put_failure; | |
7369 | ||
7370 | cb->args[0] = index; | |
7371 | genlmsg_end(skb, hdr); | |
7372 | return skb->len; | |
7373 | ||
7374 | nla_put_failure: | |
7375 | genlmsg_cancel(skb, hdr); | |
7376 | return err; | |
7377 | } | |
7378 | ||
a0bdcc59 EBE |
7379 | struct devlink_health_reporter { |
7380 | struct list_head list; | |
7381 | void *priv; | |
7382 | const struct devlink_health_reporter_ops *ops; | |
7383 | struct devlink *devlink; | |
f4f54166 | 7384 | struct devlink_port *devlink_port; |
c8e1da0b EBE |
7385 | struct devlink_fmsg *dump_fmsg; |
7386 | struct mutex dump_lock; /* lock parallel read/write from dump buffers */ | |
a0bdcc59 EBE |
7387 | u64 graceful_period; |
7388 | bool auto_recover; | |
48bb52c8 | 7389 | bool auto_dump; |
a0bdcc59 | 7390 | u8 health_state; |
c8e1da0b | 7391 | u64 dump_ts; |
d279505b | 7392 | u64 dump_real_ts; |
c8e1da0b EBE |
7393 | u64 error_count; |
7394 | u64 recovery_count; | |
7395 | u64 last_recovery_ts; | |
b587bdaf | 7396 | refcount_t refcount; |
c8e1da0b EBE |
7397 | }; |
7398 | ||
a0bdcc59 EBE |
7399 | void * |
7400 | devlink_health_reporter_priv(struct devlink_health_reporter *reporter) | |
7401 | { | |
7402 | return reporter->priv; | |
7403 | } | |
7404 | EXPORT_SYMBOL_GPL(devlink_health_reporter_priv); | |
7405 | ||
7406 | static struct devlink_health_reporter * | |
bd821005 VT |
7407 | __devlink_health_reporter_find_by_name(struct list_head *reporter_list, |
7408 | struct mutex *list_lock, | |
7409 | const char *reporter_name) | |
a0bdcc59 EBE |
7410 | { |
7411 | struct devlink_health_reporter *reporter; | |
7412 | ||
bd821005 VT |
7413 | lockdep_assert_held(list_lock); |
7414 | list_for_each_entry(reporter, reporter_list, list) | |
a0bdcc59 EBE |
7415 | if (!strcmp(reporter->ops->name, reporter_name)) |
7416 | return reporter; | |
7417 | return NULL; | |
7418 | } | |
7419 | ||
bd821005 VT |
7420 | static struct devlink_health_reporter * |
7421 | devlink_health_reporter_find_by_name(struct devlink *devlink, | |
7422 | const char *reporter_name) | |
7423 | { | |
7424 | return __devlink_health_reporter_find_by_name(&devlink->reporter_list, | |
7425 | &devlink->reporters_lock, | |
7426 | reporter_name); | |
7427 | } | |
7428 | ||
f4f54166 VT |
7429 | static struct devlink_health_reporter * |
7430 | devlink_port_health_reporter_find_by_name(struct devlink_port *devlink_port, | |
7431 | const char *reporter_name) | |
7432 | { | |
7433 | return __devlink_health_reporter_find_by_name(&devlink_port->reporter_list, | |
7434 | &devlink_port->reporters_lock, | |
7435 | reporter_name); | |
7436 | } | |
7437 | ||
c57544b3 VT |
7438 | static struct devlink_health_reporter * |
7439 | __devlink_health_reporter_create(struct devlink *devlink, | |
7440 | const struct devlink_health_reporter_ops *ops, | |
7441 | u64 graceful_period, void *priv) | |
7442 | { | |
7443 | struct devlink_health_reporter *reporter; | |
7444 | ||
7445 | if (WARN_ON(graceful_period && !ops->recover)) | |
7446 | return ERR_PTR(-EINVAL); | |
7447 | ||
7448 | reporter = kzalloc(sizeof(*reporter), GFP_KERNEL); | |
7449 | if (!reporter) | |
7450 | return ERR_PTR(-ENOMEM); | |
7451 | ||
7452 | reporter->priv = priv; | |
7453 | reporter->ops = ops; | |
7454 | reporter->devlink = devlink; | |
7455 | reporter->graceful_period = graceful_period; | |
7456 | reporter->auto_recover = !!ops->recover; | |
7457 | reporter->auto_dump = !!ops->dump; | |
7458 | mutex_init(&reporter->dump_lock); | |
7459 | refcount_set(&reporter->refcount, 1); | |
7460 | return reporter; | |
7461 | } | |
7462 | ||
15c724b9 VT |
7463 | /** |
7464 | * devlink_port_health_reporter_create - create devlink health reporter for | |
7465 | * specified port instance | |
7466 | * | |
7467 | * @port: devlink_port which should contain the new reporter | |
7468 | * @ops: ops | |
7469 | * @graceful_period: to avoid recovery loops, in msecs | |
7470 | * @priv: priv | |
7471 | */ | |
7472 | struct devlink_health_reporter * | |
7473 | devlink_port_health_reporter_create(struct devlink_port *port, | |
7474 | const struct devlink_health_reporter_ops *ops, | |
7475 | u64 graceful_period, void *priv) | |
7476 | { | |
7477 | struct devlink_health_reporter *reporter; | |
7478 | ||
7479 | mutex_lock(&port->reporters_lock); | |
7480 | if (__devlink_health_reporter_find_by_name(&port->reporter_list, | |
7481 | &port->reporters_lock, ops->name)) { | |
7482 | reporter = ERR_PTR(-EEXIST); | |
7483 | goto unlock; | |
7484 | } | |
7485 | ||
7486 | reporter = __devlink_health_reporter_create(port->devlink, ops, | |
7487 | graceful_period, priv); | |
7488 | if (IS_ERR(reporter)) | |
7489 | goto unlock; | |
7490 | ||
7491 | reporter->devlink_port = port; | |
7492 | list_add_tail(&reporter->list, &port->reporter_list); | |
7493 | unlock: | |
7494 | mutex_unlock(&port->reporters_lock); | |
7495 | return reporter; | |
7496 | } | |
7497 | EXPORT_SYMBOL_GPL(devlink_port_health_reporter_create); | |
7498 | ||
a0bdcc59 EBE |
7499 | /** |
7500 | * devlink_health_reporter_create - create devlink health reporter | |
7501 | * | |
7502 | * @devlink: devlink | |
7503 | * @ops: ops | |
7504 | * @graceful_period: to avoid recovery loops, in msecs | |
a0bdcc59 EBE |
7505 | * @priv: priv |
7506 | */ | |
7507 | struct devlink_health_reporter * | |
7508 | devlink_health_reporter_create(struct devlink *devlink, | |
7509 | const struct devlink_health_reporter_ops *ops, | |
ba7d16c7 | 7510 | u64 graceful_period, void *priv) |
a0bdcc59 EBE |
7511 | { |
7512 | struct devlink_health_reporter *reporter; | |
7513 | ||
b587bdaf | 7514 | mutex_lock(&devlink->reporters_lock); |
a0bdcc59 EBE |
7515 | if (devlink_health_reporter_find_by_name(devlink, ops->name)) { |
7516 | reporter = ERR_PTR(-EEXIST); | |
7517 | goto unlock; | |
7518 | } | |
7519 | ||
c57544b3 VT |
7520 | reporter = __devlink_health_reporter_create(devlink, ops, |
7521 | graceful_period, priv); | |
7522 | if (IS_ERR(reporter)) | |
a0bdcc59 | 7523 | goto unlock; |
a0bdcc59 | 7524 | |
a0bdcc59 EBE |
7525 | list_add_tail(&reporter->list, &devlink->reporter_list); |
7526 | unlock: | |
b587bdaf | 7527 | mutex_unlock(&devlink->reporters_lock); |
a0bdcc59 EBE |
7528 | return reporter; |
7529 | } | |
7530 | EXPORT_SYMBOL_GPL(devlink_health_reporter_create); | |
7531 | ||
3c5584bf VT |
7532 | static void |
7533 | devlink_health_reporter_free(struct devlink_health_reporter *reporter) | |
7534 | { | |
7535 | mutex_destroy(&reporter->dump_lock); | |
7536 | if (reporter->dump_fmsg) | |
7537 | devlink_fmsg_free(reporter->dump_fmsg); | |
7538 | kfree(reporter); | |
7539 | } | |
7540 | ||
7541 | static void | |
7542 | devlink_health_reporter_put(struct devlink_health_reporter *reporter) | |
7543 | { | |
7544 | if (refcount_dec_and_test(&reporter->refcount)) | |
7545 | devlink_health_reporter_free(reporter); | |
7546 | } | |
7547 | ||
7548 | static void | |
7549 | __devlink_health_reporter_destroy(struct devlink_health_reporter *reporter) | |
7550 | { | |
7551 | list_del(&reporter->list); | |
7552 | devlink_health_reporter_put(reporter); | |
7553 | } | |
7554 | ||
a0bdcc59 EBE |
7555 | /** |
7556 | * devlink_health_reporter_destroy - destroy devlink health reporter | |
7557 | * | |
7558 | * @reporter: devlink health reporter to destroy | |
7559 | */ | |
7560 | void | |
7561 | devlink_health_reporter_destroy(struct devlink_health_reporter *reporter) | |
7562 | { | |
5d037b4d IS |
7563 | struct mutex *lock = &reporter->devlink->reporters_lock; |
7564 | ||
7565 | mutex_lock(lock); | |
3c5584bf | 7566 | __devlink_health_reporter_destroy(reporter); |
5d037b4d | 7567 | mutex_unlock(lock); |
a0bdcc59 EBE |
7568 | } |
7569 | EXPORT_SYMBOL_GPL(devlink_health_reporter_destroy); | |
7570 | ||
15c724b9 VT |
7571 | /** |
7572 | * devlink_port_health_reporter_destroy - destroy devlink port health reporter | |
7573 | * | |
7574 | * @reporter: devlink health reporter to destroy | |
7575 | */ | |
7576 | void | |
7577 | devlink_port_health_reporter_destroy(struct devlink_health_reporter *reporter) | |
7578 | { | |
5d037b4d IS |
7579 | struct mutex *lock = &reporter->devlink_port->reporters_lock; |
7580 | ||
7581 | mutex_lock(lock); | |
15c724b9 | 7582 | __devlink_health_reporter_destroy(reporter); |
5d037b4d | 7583 | mutex_unlock(lock); |
15c724b9 VT |
7584 | } |
7585 | EXPORT_SYMBOL_GPL(devlink_port_health_reporter_destroy); | |
7586 | ||
6ec8b6cd MS |
7587 | static int |
7588 | devlink_nl_health_reporter_fill(struct sk_buff *msg, | |
6ec8b6cd MS |
7589 | struct devlink_health_reporter *reporter, |
7590 | enum devlink_command cmd, u32 portid, | |
7591 | u32 seq, int flags) | |
7592 | { | |
7ca973dc | 7593 | struct devlink *devlink = reporter->devlink; |
6ec8b6cd MS |
7594 | struct nlattr *reporter_attr; |
7595 | void *hdr; | |
7596 | ||
7597 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
7598 | if (!hdr) | |
7599 | return -EMSGSIZE; | |
7600 | ||
7601 | if (devlink_nl_put_handle(msg, devlink)) | |
7602 | goto genlmsg_cancel; | |
7603 | ||
f4f54166 VT |
7604 | if (reporter->devlink_port) { |
7605 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, reporter->devlink_port->index)) | |
7606 | goto genlmsg_cancel; | |
7607 | } | |
6ec8b6cd MS |
7608 | reporter_attr = nla_nest_start_noflag(msg, |
7609 | DEVLINK_ATTR_HEALTH_REPORTER); | |
7610 | if (!reporter_attr) | |
7611 | goto genlmsg_cancel; | |
7612 | if (nla_put_string(msg, DEVLINK_ATTR_HEALTH_REPORTER_NAME, | |
7613 | reporter->ops->name)) | |
7614 | goto reporter_nest_cancel; | |
7615 | if (nla_put_u8(msg, DEVLINK_ATTR_HEALTH_REPORTER_STATE, | |
7616 | reporter->health_state)) | |
7617 | goto reporter_nest_cancel; | |
7618 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_HEALTH_REPORTER_ERR_COUNT, | |
7619 | reporter->error_count, DEVLINK_ATTR_PAD)) | |
7620 | goto reporter_nest_cancel; | |
7621 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_HEALTH_REPORTER_RECOVER_COUNT, | |
7622 | reporter->recovery_count, DEVLINK_ATTR_PAD)) | |
7623 | goto reporter_nest_cancel; | |
7624 | if (reporter->ops->recover && | |
7625 | nla_put_u64_64bit(msg, DEVLINK_ATTR_HEALTH_REPORTER_GRACEFUL_PERIOD, | |
7626 | reporter->graceful_period, | |
7627 | DEVLINK_ATTR_PAD)) | |
7628 | goto reporter_nest_cancel; | |
7629 | if (reporter->ops->recover && | |
7630 | nla_put_u8(msg, DEVLINK_ATTR_HEALTH_REPORTER_AUTO_RECOVER, | |
7631 | reporter->auto_recover)) | |
7632 | goto reporter_nest_cancel; | |
7633 | if (reporter->dump_fmsg && | |
7634 | nla_put_u64_64bit(msg, DEVLINK_ATTR_HEALTH_REPORTER_DUMP_TS, | |
7635 | jiffies_to_msecs(reporter->dump_ts), | |
7636 | DEVLINK_ATTR_PAD)) | |
7637 | goto reporter_nest_cancel; | |
7638 | if (reporter->dump_fmsg && | |
7639 | nla_put_u64_64bit(msg, DEVLINK_ATTR_HEALTH_REPORTER_DUMP_TS_NS, | |
7640 | reporter->dump_real_ts, DEVLINK_ATTR_PAD)) | |
7641 | goto reporter_nest_cancel; | |
48bb52c8 EBE |
7642 | if (reporter->ops->dump && |
7643 | nla_put_u8(msg, DEVLINK_ATTR_HEALTH_REPORTER_AUTO_DUMP, | |
7644 | reporter->auto_dump)) | |
7645 | goto reporter_nest_cancel; | |
6ec8b6cd MS |
7646 | |
7647 | nla_nest_end(msg, reporter_attr); | |
7648 | genlmsg_end(msg, hdr); | |
7649 | return 0; | |
7650 | ||
7651 | reporter_nest_cancel: | |
7652 | nla_nest_end(msg, reporter_attr); | |
7653 | genlmsg_cancel: | |
7654 | genlmsg_cancel(msg, hdr); | |
7655 | return -EMSGSIZE; | |
7656 | } | |
7657 | ||
7658 | static void devlink_recover_notify(struct devlink_health_reporter *reporter, | |
7659 | enum devlink_command cmd) | |
7660 | { | |
cf530217 | 7661 | struct devlink *devlink = reporter->devlink; |
6ec8b6cd MS |
7662 | struct sk_buff *msg; |
7663 | int err; | |
7664 | ||
7665 | WARN_ON(cmd != DEVLINK_CMD_HEALTH_REPORTER_RECOVER); | |
cf530217 | 7666 | WARN_ON(!xa_get_mark(&devlinks, devlink->index, DEVLINK_REGISTERED)); |
6ec8b6cd MS |
7667 | |
7668 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
7669 | if (!msg) | |
7670 | return; | |
7671 | ||
7ca973dc | 7672 | err = devlink_nl_health_reporter_fill(msg, reporter, cmd, 0, 0, 0); |
6ec8b6cd MS |
7673 | if (err) { |
7674 | nlmsg_free(msg); | |
7675 | return; | |
7676 | } | |
7677 | ||
cf530217 LR |
7678 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), msg, |
7679 | 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
6ec8b6cd MS |
7680 | } |
7681 | ||
6181e5cb VG |
7682 | void |
7683 | devlink_health_reporter_recovery_done(struct devlink_health_reporter *reporter) | |
7684 | { | |
7685 | reporter->recovery_count++; | |
7686 | reporter->last_recovery_ts = jiffies; | |
7687 | } | |
7688 | EXPORT_SYMBOL_GPL(devlink_health_reporter_recovery_done); | |
7689 | ||
c8e1da0b EBE |
7690 | static int |
7691 | devlink_health_reporter_recover(struct devlink_health_reporter *reporter, | |
e7a98105 | 7692 | void *priv_ctx, struct netlink_ext_ack *extack) |
c8e1da0b EBE |
7693 | { |
7694 | int err; | |
7695 | ||
40281820 JP |
7696 | if (reporter->health_state == DEVLINK_HEALTH_REPORTER_STATE_HEALTHY) |
7697 | return 0; | |
7698 | ||
c8e1da0b EBE |
7699 | if (!reporter->ops->recover) |
7700 | return -EOPNOTSUPP; | |
7701 | ||
e7a98105 | 7702 | err = reporter->ops->recover(reporter, priv_ctx, extack); |
c8e1da0b EBE |
7703 | if (err) |
7704 | return err; | |
7705 | ||
6181e5cb | 7706 | devlink_health_reporter_recovery_done(reporter); |
c8e1da0b | 7707 | reporter->health_state = DEVLINK_HEALTH_REPORTER_STATE_HEALTHY; |
6ec8b6cd | 7708 | devlink_recover_notify(reporter, DEVLINK_CMD_HEALTH_REPORTER_RECOVER); |
c8e1da0b EBE |
7709 | |
7710 | return 0; | |
7711 | } | |
7712 | ||
7713 | static void | |
7714 | devlink_health_dump_clear(struct devlink_health_reporter *reporter) | |
7715 | { | |
7716 | if (!reporter->dump_fmsg) | |
7717 | return; | |
7718 | devlink_fmsg_free(reporter->dump_fmsg); | |
7719 | reporter->dump_fmsg = NULL; | |
7720 | } | |
7721 | ||
7722 | static int devlink_health_do_dump(struct devlink_health_reporter *reporter, | |
e7a98105 JP |
7723 | void *priv_ctx, |
7724 | struct netlink_ext_ack *extack) | |
c8e1da0b EBE |
7725 | { |
7726 | int err; | |
7727 | ||
7728 | if (!reporter->ops->dump) | |
7729 | return 0; | |
7730 | ||
7731 | if (reporter->dump_fmsg) | |
7732 | return 0; | |
7733 | ||
7734 | reporter->dump_fmsg = devlink_fmsg_alloc(); | |
7735 | if (!reporter->dump_fmsg) { | |
7736 | err = -ENOMEM; | |
7737 | return err; | |
7738 | } | |
7739 | ||
7740 | err = devlink_fmsg_obj_nest_start(reporter->dump_fmsg); | |
7741 | if (err) | |
7742 | goto dump_err; | |
7743 | ||
7744 | err = reporter->ops->dump(reporter, reporter->dump_fmsg, | |
e7a98105 | 7745 | priv_ctx, extack); |
c8e1da0b EBE |
7746 | if (err) |
7747 | goto dump_err; | |
7748 | ||
7749 | err = devlink_fmsg_obj_nest_end(reporter->dump_fmsg); | |
7750 | if (err) | |
7751 | goto dump_err; | |
7752 | ||
7753 | reporter->dump_ts = jiffies; | |
d279505b | 7754 | reporter->dump_real_ts = ktime_get_real_ns(); |
c8e1da0b EBE |
7755 | |
7756 | return 0; | |
7757 | ||
7758 | dump_err: | |
7759 | devlink_health_dump_clear(reporter); | |
7760 | return err; | |
7761 | } | |
7762 | ||
7763 | int devlink_health_report(struct devlink_health_reporter *reporter, | |
7764 | const char *msg, void *priv_ctx) | |
7765 | { | |
a0a21adb | 7766 | enum devlink_health_reporter_state prev_health_state; |
c8e1da0b | 7767 | struct devlink *devlink = reporter->devlink; |
bea0c5c9 | 7768 | unsigned long recover_ts_threshold; |
c90005b5 | 7769 | int ret; |
c8e1da0b EBE |
7770 | |
7771 | /* write a log message of the current error */ | |
7772 | WARN_ON(!msg); | |
7773 | trace_devlink_health_report(devlink, reporter->ops->name, msg); | |
7774 | reporter->error_count++; | |
a0a21adb EBE |
7775 | prev_health_state = reporter->health_state; |
7776 | reporter->health_state = DEVLINK_HEALTH_REPORTER_STATE_ERROR; | |
6ec8b6cd | 7777 | devlink_recover_notify(reporter, DEVLINK_CMD_HEALTH_REPORTER_RECOVER); |
c8e1da0b EBE |
7778 | |
7779 | /* abort if the previous error wasn't recovered */ | |
bea0c5c9 AL |
7780 | recover_ts_threshold = reporter->last_recovery_ts + |
7781 | msecs_to_jiffies(reporter->graceful_period); | |
c8e1da0b | 7782 | if (reporter->auto_recover && |
a0a21adb | 7783 | (prev_health_state != DEVLINK_HEALTH_REPORTER_STATE_HEALTHY || |
bea0c5c9 AL |
7784 | (reporter->last_recovery_ts && reporter->recovery_count && |
7785 | time_is_after_jiffies(recover_ts_threshold)))) { | |
c8e1da0b EBE |
7786 | trace_devlink_health_recover_aborted(devlink, |
7787 | reporter->ops->name, | |
7788 | reporter->health_state, | |
7789 | jiffies - | |
7790 | reporter->last_recovery_ts); | |
7791 | return -ECANCELED; | |
7792 | } | |
7793 | ||
7794 | reporter->health_state = DEVLINK_HEALTH_REPORTER_STATE_ERROR; | |
7795 | ||
48bb52c8 EBE |
7796 | if (reporter->auto_dump) { |
7797 | mutex_lock(&reporter->dump_lock); | |
7798 | /* store current dump of current error, for later analysis */ | |
7799 | devlink_health_do_dump(reporter, priv_ctx, NULL); | |
7800 | mutex_unlock(&reporter->dump_lock); | |
7801 | } | |
c8e1da0b | 7802 | |
c90005b5 MS |
7803 | if (!reporter->auto_recover) |
7804 | return 0; | |
c8e1da0b | 7805 | |
c90005b5 MS |
7806 | devl_lock(devlink); |
7807 | ret = devlink_health_reporter_recover(reporter, priv_ctx, NULL); | |
7808 | devl_unlock(devlink); | |
7809 | ||
7810 | return ret; | |
c8e1da0b EBE |
7811 | } |
7812 | EXPORT_SYMBOL_GPL(devlink_health_report); | |
7813 | ||
7afe335a | 7814 | static struct devlink_health_reporter * |
e44ef4e4 AL |
7815 | devlink_health_reporter_get_from_attrs(struct devlink *devlink, |
7816 | struct nlattr **attrs) | |
7afe335a | 7817 | { |
b587bdaf | 7818 | struct devlink_health_reporter *reporter; |
f4f54166 | 7819 | struct devlink_port *devlink_port; |
7afe335a EBE |
7820 | char *reporter_name; |
7821 | ||
e44ef4e4 | 7822 | if (!attrs[DEVLINK_ATTR_HEALTH_REPORTER_NAME]) |
7afe335a EBE |
7823 | return NULL; |
7824 | ||
e44ef4e4 | 7825 | reporter_name = nla_data(attrs[DEVLINK_ATTR_HEALTH_REPORTER_NAME]); |
f4f54166 VT |
7826 | devlink_port = devlink_port_get_from_attrs(devlink, attrs); |
7827 | if (IS_ERR(devlink_port)) { | |
7828 | mutex_lock(&devlink->reporters_lock); | |
7829 | reporter = devlink_health_reporter_find_by_name(devlink, reporter_name); | |
7830 | if (reporter) | |
7831 | refcount_inc(&reporter->refcount); | |
7832 | mutex_unlock(&devlink->reporters_lock); | |
7833 | } else { | |
7834 | mutex_lock(&devlink_port->reporters_lock); | |
7835 | reporter = devlink_port_health_reporter_find_by_name(devlink_port, reporter_name); | |
7836 | if (reporter) | |
7837 | refcount_inc(&reporter->refcount); | |
7838 | mutex_unlock(&devlink_port->reporters_lock); | |
7839 | } | |
7840 | ||
b587bdaf MS |
7841 | return reporter; |
7842 | } | |
7843 | ||
e44ef4e4 AL |
7844 | static struct devlink_health_reporter * |
7845 | devlink_health_reporter_get_from_info(struct devlink *devlink, | |
7846 | struct genl_info *info) | |
7847 | { | |
7848 | return devlink_health_reporter_get_from_attrs(devlink, info->attrs); | |
7849 | } | |
7850 | ||
7851 | static struct devlink_health_reporter * | |
7852 | devlink_health_reporter_get_from_cb(struct netlink_callback *cb) | |
7853 | { | |
ee85da53 | 7854 | const struct genl_dumpit_info *info = genl_dumpit_info(cb); |
e44ef4e4 | 7855 | struct devlink_health_reporter *reporter; |
ee85da53 | 7856 | struct nlattr **attrs = info->attrs; |
e44ef4e4 | 7857 | struct devlink *devlink; |
e44ef4e4 AL |
7858 | |
7859 | mutex_lock(&devlink_mutex); | |
7860 | devlink = devlink_get_from_attrs(sock_net(cb->skb->sk), attrs); | |
7861 | if (IS_ERR(devlink)) | |
7862 | goto unlock; | |
7863 | ||
7864 | reporter = devlink_health_reporter_get_from_attrs(devlink, attrs); | |
437ebfd9 | 7865 | devlink_put(devlink); |
e44ef4e4 | 7866 | mutex_unlock(&devlink_mutex); |
e44ef4e4 AL |
7867 | return reporter; |
7868 | unlock: | |
7869 | mutex_unlock(&devlink_mutex); | |
e44ef4e4 AL |
7870 | return NULL; |
7871 | } | |
7872 | ||
97ff3bd3 VG |
7873 | void |
7874 | devlink_health_reporter_state_update(struct devlink_health_reporter *reporter, | |
7875 | enum devlink_health_reporter_state state) | |
7876 | { | |
7877 | if (WARN_ON(state != DEVLINK_HEALTH_REPORTER_STATE_HEALTHY && | |
7878 | state != DEVLINK_HEALTH_REPORTER_STATE_ERROR)) | |
7879 | return; | |
7880 | ||
7881 | if (reporter->health_state == state) | |
7882 | return; | |
7883 | ||
7884 | reporter->health_state = state; | |
7885 | trace_devlink_health_reporter_state_update(reporter->devlink, | |
7886 | reporter->ops->name, state); | |
7887 | devlink_recover_notify(reporter, DEVLINK_CMD_HEALTH_REPORTER_RECOVER); | |
7888 | } | |
7889 | EXPORT_SYMBOL_GPL(devlink_health_reporter_state_update); | |
7890 | ||
7afe335a EBE |
7891 | static int devlink_nl_cmd_health_reporter_get_doit(struct sk_buff *skb, |
7892 | struct genl_info *info) | |
7893 | { | |
7894 | struct devlink *devlink = info->user_ptr[0]; | |
7895 | struct devlink_health_reporter *reporter; | |
7896 | struct sk_buff *msg; | |
7897 | int err; | |
7898 | ||
7899 | reporter = devlink_health_reporter_get_from_info(devlink, info); | |
7900 | if (!reporter) | |
7901 | return -EINVAL; | |
7902 | ||
7903 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
b587bdaf MS |
7904 | if (!msg) { |
7905 | err = -ENOMEM; | |
7906 | goto out; | |
7907 | } | |
7afe335a | 7908 | |
7ca973dc | 7909 | err = devlink_nl_health_reporter_fill(msg, reporter, |
7afe335a EBE |
7910 | DEVLINK_CMD_HEALTH_REPORTER_GET, |
7911 | info->snd_portid, info->snd_seq, | |
7912 | 0); | |
7913 | if (err) { | |
7914 | nlmsg_free(msg); | |
b587bdaf | 7915 | goto out; |
7afe335a EBE |
7916 | } |
7917 | ||
b587bdaf MS |
7918 | err = genlmsg_reply(msg, info); |
7919 | out: | |
7920 | devlink_health_reporter_put(reporter); | |
7921 | return err; | |
7afe335a EBE |
7922 | } |
7923 | ||
7924 | static int | |
7925 | devlink_nl_cmd_health_reporter_get_dumpit(struct sk_buff *msg, | |
7926 | struct netlink_callback *cb) | |
7927 | { | |
7928 | struct devlink_health_reporter *reporter; | |
f4f54166 | 7929 | struct devlink_port *port; |
7afe335a EBE |
7930 | struct devlink *devlink; |
7931 | int start = cb->args[0]; | |
11a861d7 | 7932 | unsigned long index; |
7afe335a EBE |
7933 | int idx = 0; |
7934 | int err; | |
7935 | ||
7936 | mutex_lock(&devlink_mutex); | |
294c4f57 | 7937 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
b587bdaf | 7938 | mutex_lock(&devlink->reporters_lock); |
7afe335a EBE |
7939 | list_for_each_entry(reporter, &devlink->reporter_list, |
7940 | list) { | |
7941 | if (idx < start) { | |
7942 | idx++; | |
7943 | continue; | |
7944 | } | |
7ca973dc LR |
7945 | err = devlink_nl_health_reporter_fill( |
7946 | msg, reporter, DEVLINK_CMD_HEALTH_REPORTER_GET, | |
7947 | NETLINK_CB(cb->skb).portid, cb->nlh->nlmsg_seq, | |
7948 | NLM_F_MULTI); | |
7afe335a | 7949 | if (err) { |
b587bdaf | 7950 | mutex_unlock(&devlink->reporters_lock); |
437ebfd9 | 7951 | devlink_put(devlink); |
7afe335a EBE |
7952 | goto out; |
7953 | } | |
7954 | idx++; | |
7955 | } | |
b587bdaf | 7956 | mutex_unlock(&devlink->reporters_lock); |
437ebfd9 | 7957 | devlink_put(devlink); |
7afe335a | 7958 | } |
f4f54166 | 7959 | |
294c4f57 | 7960 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
7715023a | 7961 | devl_lock(devlink); |
f4f54166 VT |
7962 | list_for_each_entry(port, &devlink->port_list, list) { |
7963 | mutex_lock(&port->reporters_lock); | |
7964 | list_for_each_entry(reporter, &port->reporter_list, list) { | |
7965 | if (idx < start) { | |
7966 | idx++; | |
7967 | continue; | |
7968 | } | |
7ca973dc LR |
7969 | err = devlink_nl_health_reporter_fill( |
7970 | msg, reporter, | |
7971 | DEVLINK_CMD_HEALTH_REPORTER_GET, | |
7972 | NETLINK_CB(cb->skb).portid, | |
7973 | cb->nlh->nlmsg_seq, NLM_F_MULTI); | |
f4f54166 VT |
7974 | if (err) { |
7975 | mutex_unlock(&port->reporters_lock); | |
7715023a | 7976 | devl_unlock(devlink); |
437ebfd9 | 7977 | devlink_put(devlink); |
f4f54166 VT |
7978 | goto out; |
7979 | } | |
7980 | idx++; | |
7981 | } | |
7982 | mutex_unlock(&port->reporters_lock); | |
7983 | } | |
7715023a | 7984 | devl_unlock(devlink); |
437ebfd9 | 7985 | devlink_put(devlink); |
f4f54166 | 7986 | } |
7afe335a EBE |
7987 | out: |
7988 | mutex_unlock(&devlink_mutex); | |
7989 | ||
7990 | cb->args[0] = idx; | |
7991 | return msg->len; | |
7992 | } | |
7993 | ||
a1e55ec0 EBE |
7994 | static int |
7995 | devlink_nl_cmd_health_reporter_set_doit(struct sk_buff *skb, | |
7996 | struct genl_info *info) | |
7997 | { | |
7998 | struct devlink *devlink = info->user_ptr[0]; | |
7999 | struct devlink_health_reporter *reporter; | |
b587bdaf | 8000 | int err; |
a1e55ec0 EBE |
8001 | |
8002 | reporter = devlink_health_reporter_get_from_info(devlink, info); | |
8003 | if (!reporter) | |
8004 | return -EINVAL; | |
8005 | ||
8006 | if (!reporter->ops->recover && | |
8007 | (info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_GRACEFUL_PERIOD] || | |
b587bdaf MS |
8008 | info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_AUTO_RECOVER])) { |
8009 | err = -EOPNOTSUPP; | |
8010 | goto out; | |
8011 | } | |
48bb52c8 EBE |
8012 | if (!reporter->ops->dump && |
8013 | info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_AUTO_DUMP]) { | |
8014 | err = -EOPNOTSUPP; | |
8015 | goto out; | |
8016 | } | |
a1e55ec0 EBE |
8017 | |
8018 | if (info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_GRACEFUL_PERIOD]) | |
8019 | reporter->graceful_period = | |
8020 | nla_get_u64(info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_GRACEFUL_PERIOD]); | |
8021 | ||
8022 | if (info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_AUTO_RECOVER]) | |
8023 | reporter->auto_recover = | |
8024 | nla_get_u8(info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_AUTO_RECOVER]); | |
8025 | ||
48bb52c8 EBE |
8026 | if (info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_AUTO_DUMP]) |
8027 | reporter->auto_dump = | |
8028 | nla_get_u8(info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_AUTO_DUMP]); | |
8029 | ||
b587bdaf | 8030 | devlink_health_reporter_put(reporter); |
a1e55ec0 | 8031 | return 0; |
b587bdaf MS |
8032 | out: |
8033 | devlink_health_reporter_put(reporter); | |
8034 | return err; | |
a1e55ec0 EBE |
8035 | } |
8036 | ||
20a0943a EBE |
8037 | static int devlink_nl_cmd_health_reporter_recover_doit(struct sk_buff *skb, |
8038 | struct genl_info *info) | |
8039 | { | |
8040 | struct devlink *devlink = info->user_ptr[0]; | |
8041 | struct devlink_health_reporter *reporter; | |
b587bdaf | 8042 | int err; |
20a0943a EBE |
8043 | |
8044 | reporter = devlink_health_reporter_get_from_info(devlink, info); | |
8045 | if (!reporter) | |
8046 | return -EINVAL; | |
8047 | ||
e7a98105 | 8048 | err = devlink_health_reporter_recover(reporter, NULL, info->extack); |
b587bdaf MS |
8049 | |
8050 | devlink_health_reporter_put(reporter); | |
8051 | return err; | |
20a0943a EBE |
8052 | } |
8053 | ||
fca42a27 EBE |
8054 | static int devlink_nl_cmd_health_reporter_diagnose_doit(struct sk_buff *skb, |
8055 | struct genl_info *info) | |
8056 | { | |
8057 | struct devlink *devlink = info->user_ptr[0]; | |
8058 | struct devlink_health_reporter *reporter; | |
8059 | struct devlink_fmsg *fmsg; | |
8060 | int err; | |
8061 | ||
8062 | reporter = devlink_health_reporter_get_from_info(devlink, info); | |
8063 | if (!reporter) | |
8064 | return -EINVAL; | |
8065 | ||
b587bdaf MS |
8066 | if (!reporter->ops->diagnose) { |
8067 | devlink_health_reporter_put(reporter); | |
fca42a27 | 8068 | return -EOPNOTSUPP; |
b587bdaf | 8069 | } |
fca42a27 EBE |
8070 | |
8071 | fmsg = devlink_fmsg_alloc(); | |
b587bdaf MS |
8072 | if (!fmsg) { |
8073 | devlink_health_reporter_put(reporter); | |
fca42a27 | 8074 | return -ENOMEM; |
b587bdaf | 8075 | } |
fca42a27 EBE |
8076 | |
8077 | err = devlink_fmsg_obj_nest_start(fmsg); | |
8078 | if (err) | |
8079 | goto out; | |
8080 | ||
e7a98105 | 8081 | err = reporter->ops->diagnose(reporter, fmsg, info->extack); |
fca42a27 EBE |
8082 | if (err) |
8083 | goto out; | |
8084 | ||
8085 | err = devlink_fmsg_obj_nest_end(fmsg); | |
8086 | if (err) | |
8087 | goto out; | |
8088 | ||
8089 | err = devlink_fmsg_snd(fmsg, info, | |
8090 | DEVLINK_CMD_HEALTH_REPORTER_DIAGNOSE, 0); | |
8091 | ||
8092 | out: | |
8093 | devlink_fmsg_free(fmsg); | |
b587bdaf | 8094 | devlink_health_reporter_put(reporter); |
fca42a27 EBE |
8095 | return err; |
8096 | } | |
8097 | ||
e44ef4e4 AL |
8098 | static int |
8099 | devlink_nl_cmd_health_reporter_dump_get_dumpit(struct sk_buff *skb, | |
8100 | struct netlink_callback *cb) | |
35455e23 | 8101 | { |
35455e23 | 8102 | struct devlink_health_reporter *reporter; |
e44ef4e4 | 8103 | u64 start = cb->args[0]; |
35455e23 EBE |
8104 | int err; |
8105 | ||
e44ef4e4 | 8106 | reporter = devlink_health_reporter_get_from_cb(cb); |
35455e23 EBE |
8107 | if (!reporter) |
8108 | return -EINVAL; | |
8109 | ||
b587bdaf | 8110 | if (!reporter->ops->dump) { |
e44ef4e4 AL |
8111 | err = -EOPNOTSUPP; |
8112 | goto out; | |
b587bdaf | 8113 | } |
35455e23 | 8114 | mutex_lock(&reporter->dump_lock); |
e44ef4e4 | 8115 | if (!start) { |
e7a98105 | 8116 | err = devlink_health_do_dump(reporter, NULL, cb->extack); |
e44ef4e4 AL |
8117 | if (err) |
8118 | goto unlock; | |
8119 | cb->args[1] = reporter->dump_ts; | |
8120 | } | |
8121 | if (!reporter->dump_fmsg || cb->args[1] != reporter->dump_ts) { | |
8122 | NL_SET_ERR_MSG_MOD(cb->extack, "Dump trampled, please retry"); | |
8123 | err = -EAGAIN; | |
8124 | goto unlock; | |
8125 | } | |
35455e23 | 8126 | |
e44ef4e4 AL |
8127 | err = devlink_fmsg_dumpit(reporter->dump_fmsg, skb, cb, |
8128 | DEVLINK_CMD_HEALTH_REPORTER_DUMP_GET); | |
8129 | unlock: | |
35455e23 | 8130 | mutex_unlock(&reporter->dump_lock); |
e44ef4e4 | 8131 | out: |
b587bdaf | 8132 | devlink_health_reporter_put(reporter); |
35455e23 EBE |
8133 | return err; |
8134 | } | |
8135 | ||
8136 | static int | |
8137 | devlink_nl_cmd_health_reporter_dump_clear_doit(struct sk_buff *skb, | |
8138 | struct genl_info *info) | |
8139 | { | |
8140 | struct devlink *devlink = info->user_ptr[0]; | |
8141 | struct devlink_health_reporter *reporter; | |
8142 | ||
8143 | reporter = devlink_health_reporter_get_from_info(devlink, info); | |
8144 | if (!reporter) | |
8145 | return -EINVAL; | |
8146 | ||
b587bdaf MS |
8147 | if (!reporter->ops->dump) { |
8148 | devlink_health_reporter_put(reporter); | |
35455e23 | 8149 | return -EOPNOTSUPP; |
b587bdaf | 8150 | } |
35455e23 EBE |
8151 | |
8152 | mutex_lock(&reporter->dump_lock); | |
8153 | devlink_health_dump_clear(reporter); | |
8154 | mutex_unlock(&reporter->dump_lock); | |
b587bdaf | 8155 | devlink_health_reporter_put(reporter); |
35455e23 EBE |
8156 | return 0; |
8157 | } | |
8158 | ||
e2ce94dc JP |
8159 | static int devlink_nl_cmd_health_reporter_test_doit(struct sk_buff *skb, |
8160 | struct genl_info *info) | |
8161 | { | |
8162 | struct devlink *devlink = info->user_ptr[0]; | |
8163 | struct devlink_health_reporter *reporter; | |
8164 | int err; | |
8165 | ||
8166 | reporter = devlink_health_reporter_get_from_info(devlink, info); | |
8167 | if (!reporter) | |
8168 | return -EINVAL; | |
8169 | ||
8170 | if (!reporter->ops->test) { | |
8171 | devlink_health_reporter_put(reporter); | |
8172 | return -EOPNOTSUPP; | |
8173 | } | |
8174 | ||
8175 | err = reporter->ops->test(reporter, info->extack); | |
8176 | ||
8177 | devlink_health_reporter_put(reporter); | |
8178 | return err; | |
8179 | } | |
8180 | ||
0f420b6c | 8181 | struct devlink_stats { |
958751e0 ED |
8182 | u64_stats_t rx_bytes; |
8183 | u64_stats_t rx_packets; | |
0f420b6c IS |
8184 | struct u64_stats_sync syncp; |
8185 | }; | |
8186 | ||
1e8c6619 IS |
8187 | /** |
8188 | * struct devlink_trap_policer_item - Packet trap policer attributes. | |
8189 | * @policer: Immutable packet trap policer attributes. | |
8190 | * @rate: Rate in packets / sec. | |
8191 | * @burst: Burst size in packets. | |
8192 | * @list: trap_policer_list member. | |
8193 | * | |
8194 | * Describes packet trap policer attributes. Created by devlink during trap | |
8195 | * policer registration. | |
8196 | */ | |
8197 | struct devlink_trap_policer_item { | |
8198 | const struct devlink_trap_policer *policer; | |
8199 | u64 rate; | |
8200 | u64 burst; | |
8201 | struct list_head list; | |
8202 | }; | |
8203 | ||
0f420b6c IS |
8204 | /** |
8205 | * struct devlink_trap_group_item - Packet trap group attributes. | |
8206 | * @group: Immutable packet trap group attributes. | |
f9f54392 | 8207 | * @policer_item: Associated policer item. Can be NULL. |
0f420b6c IS |
8208 | * @list: trap_group_list member. |
8209 | * @stats: Trap group statistics. | |
8210 | * | |
8211 | * Describes packet trap group attributes. Created by devlink during trap | |
a09b37fc | 8212 | * group registration. |
0f420b6c IS |
8213 | */ |
8214 | struct devlink_trap_group_item { | |
8215 | const struct devlink_trap_group *group; | |
f9f54392 | 8216 | struct devlink_trap_policer_item *policer_item; |
0f420b6c IS |
8217 | struct list_head list; |
8218 | struct devlink_stats __percpu *stats; | |
8219 | }; | |
8220 | ||
8221 | /** | |
8222 | * struct devlink_trap_item - Packet trap attributes. | |
8223 | * @trap: Immutable packet trap attributes. | |
8224 | * @group_item: Associated group item. | |
8225 | * @list: trap_list member. | |
8226 | * @action: Trap action. | |
8227 | * @stats: Trap statistics. | |
8228 | * @priv: Driver private information. | |
8229 | * | |
8230 | * Describes both mutable and immutable packet trap attributes. Created by | |
8231 | * devlink during trap registration and used for all trap related operations. | |
8232 | */ | |
8233 | struct devlink_trap_item { | |
8234 | const struct devlink_trap *trap; | |
8235 | struct devlink_trap_group_item *group_item; | |
8236 | struct list_head list; | |
8237 | enum devlink_trap_action action; | |
8238 | struct devlink_stats __percpu *stats; | |
8239 | void *priv; | |
8240 | }; | |
8241 | ||
1e8c6619 IS |
8242 | static struct devlink_trap_policer_item * |
8243 | devlink_trap_policer_item_lookup(struct devlink *devlink, u32 id) | |
8244 | { | |
8245 | struct devlink_trap_policer_item *policer_item; | |
8246 | ||
8247 | list_for_each_entry(policer_item, &devlink->trap_policer_list, list) { | |
8248 | if (policer_item->policer->id == id) | |
8249 | return policer_item; | |
8250 | } | |
8251 | ||
8252 | return NULL; | |
8253 | } | |
8254 | ||
0f420b6c IS |
8255 | static struct devlink_trap_item * |
8256 | devlink_trap_item_lookup(struct devlink *devlink, const char *name) | |
8257 | { | |
8258 | struct devlink_trap_item *trap_item; | |
8259 | ||
8260 | list_for_each_entry(trap_item, &devlink->trap_list, list) { | |
8261 | if (!strcmp(trap_item->trap->name, name)) | |
8262 | return trap_item; | |
8263 | } | |
8264 | ||
8265 | return NULL; | |
8266 | } | |
8267 | ||
8268 | static struct devlink_trap_item * | |
8269 | devlink_trap_item_get_from_info(struct devlink *devlink, | |
8270 | struct genl_info *info) | |
8271 | { | |
8272 | struct nlattr *attr; | |
8273 | ||
8274 | if (!info->attrs[DEVLINK_ATTR_TRAP_NAME]) | |
8275 | return NULL; | |
8276 | attr = info->attrs[DEVLINK_ATTR_TRAP_NAME]; | |
8277 | ||
8278 | return devlink_trap_item_lookup(devlink, nla_data(attr)); | |
8279 | } | |
8280 | ||
8281 | static int | |
8282 | devlink_trap_action_get_from_info(struct genl_info *info, | |
8283 | enum devlink_trap_action *p_trap_action) | |
8284 | { | |
8285 | u8 val; | |
8286 | ||
8287 | val = nla_get_u8(info->attrs[DEVLINK_ATTR_TRAP_ACTION]); | |
8288 | switch (val) { | |
df561f66 GS |
8289 | case DEVLINK_TRAP_ACTION_DROP: |
8290 | case DEVLINK_TRAP_ACTION_TRAP: | |
9eefeabe | 8291 | case DEVLINK_TRAP_ACTION_MIRROR: |
0f420b6c IS |
8292 | *p_trap_action = val; |
8293 | break; | |
8294 | default: | |
8295 | return -EINVAL; | |
8296 | } | |
8297 | ||
8298 | return 0; | |
8299 | } | |
8300 | ||
8301 | static int devlink_trap_metadata_put(struct sk_buff *msg, | |
8302 | const struct devlink_trap *trap) | |
8303 | { | |
8304 | struct nlattr *attr; | |
8305 | ||
8306 | attr = nla_nest_start(msg, DEVLINK_ATTR_TRAP_METADATA); | |
8307 | if (!attr) | |
8308 | return -EMSGSIZE; | |
8309 | ||
8310 | if ((trap->metadata_cap & DEVLINK_TRAP_METADATA_TYPE_F_IN_PORT) && | |
8311 | nla_put_flag(msg, DEVLINK_ATTR_TRAP_METADATA_TYPE_IN_PORT)) | |
8312 | goto nla_put_failure; | |
85b0589e JP |
8313 | if ((trap->metadata_cap & DEVLINK_TRAP_METADATA_TYPE_F_FA_COOKIE) && |
8314 | nla_put_flag(msg, DEVLINK_ATTR_TRAP_METADATA_TYPE_FA_COOKIE)) | |
8315 | goto nla_put_failure; | |
0f420b6c IS |
8316 | |
8317 | nla_nest_end(msg, attr); | |
8318 | ||
8319 | return 0; | |
8320 | ||
8321 | nla_put_failure: | |
8322 | nla_nest_cancel(msg, attr); | |
8323 | return -EMSGSIZE; | |
8324 | } | |
8325 | ||
8326 | static void devlink_trap_stats_read(struct devlink_stats __percpu *trap_stats, | |
8327 | struct devlink_stats *stats) | |
8328 | { | |
8329 | int i; | |
8330 | ||
8331 | memset(stats, 0, sizeof(*stats)); | |
8332 | for_each_possible_cpu(i) { | |
8333 | struct devlink_stats *cpu_stats; | |
8334 | u64 rx_packets, rx_bytes; | |
8335 | unsigned int start; | |
8336 | ||
8337 | cpu_stats = per_cpu_ptr(trap_stats, i); | |
8338 | do { | |
8339 | start = u64_stats_fetch_begin_irq(&cpu_stats->syncp); | |
958751e0 ED |
8340 | rx_packets = u64_stats_read(&cpu_stats->rx_packets); |
8341 | rx_bytes = u64_stats_read(&cpu_stats->rx_bytes); | |
0f420b6c IS |
8342 | } while (u64_stats_fetch_retry_irq(&cpu_stats->syncp, start)); |
8343 | ||
958751e0 ED |
8344 | u64_stats_add(&stats->rx_packets, rx_packets); |
8345 | u64_stats_add(&stats->rx_bytes, rx_bytes); | |
0f420b6c IS |
8346 | } |
8347 | } | |
8348 | ||
ddee9dbc OM |
8349 | static int |
8350 | devlink_trap_group_stats_put(struct sk_buff *msg, | |
8351 | struct devlink_stats __percpu *trap_stats) | |
0f420b6c IS |
8352 | { |
8353 | struct devlink_stats stats; | |
8354 | struct nlattr *attr; | |
8355 | ||
8356 | devlink_trap_stats_read(trap_stats, &stats); | |
8357 | ||
8358 | attr = nla_nest_start(msg, DEVLINK_ATTR_STATS); | |
8359 | if (!attr) | |
8360 | return -EMSGSIZE; | |
8361 | ||
8362 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_STATS_RX_PACKETS, | |
958751e0 ED |
8363 | u64_stats_read(&stats.rx_packets), |
8364 | DEVLINK_ATTR_PAD)) | |
0f420b6c IS |
8365 | goto nla_put_failure; |
8366 | ||
8367 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_STATS_RX_BYTES, | |
958751e0 ED |
8368 | u64_stats_read(&stats.rx_bytes), |
8369 | DEVLINK_ATTR_PAD)) | |
0f420b6c IS |
8370 | goto nla_put_failure; |
8371 | ||
8372 | nla_nest_end(msg, attr); | |
8373 | ||
8374 | return 0; | |
8375 | ||
8376 | nla_put_failure: | |
8377 | nla_nest_cancel(msg, attr); | |
8378 | return -EMSGSIZE; | |
8379 | } | |
8380 | ||
ddee9dbc OM |
8381 | static int devlink_trap_stats_put(struct sk_buff *msg, struct devlink *devlink, |
8382 | const struct devlink_trap_item *trap_item) | |
8383 | { | |
8384 | struct devlink_stats stats; | |
8385 | struct nlattr *attr; | |
8386 | u64 drops = 0; | |
8387 | int err; | |
8388 | ||
8389 | if (devlink->ops->trap_drop_counter_get) { | |
8390 | err = devlink->ops->trap_drop_counter_get(devlink, | |
8391 | trap_item->trap, | |
8392 | &drops); | |
8393 | if (err) | |
8394 | return err; | |
8395 | } | |
8396 | ||
8397 | devlink_trap_stats_read(trap_item->stats, &stats); | |
8398 | ||
8399 | attr = nla_nest_start(msg, DEVLINK_ATTR_STATS); | |
8400 | if (!attr) | |
8401 | return -EMSGSIZE; | |
8402 | ||
8403 | if (devlink->ops->trap_drop_counter_get && | |
8404 | nla_put_u64_64bit(msg, DEVLINK_ATTR_STATS_RX_DROPPED, drops, | |
8405 | DEVLINK_ATTR_PAD)) | |
8406 | goto nla_put_failure; | |
8407 | ||
8408 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_STATS_RX_PACKETS, | |
958751e0 ED |
8409 | u64_stats_read(&stats.rx_packets), |
8410 | DEVLINK_ATTR_PAD)) | |
ddee9dbc OM |
8411 | goto nla_put_failure; |
8412 | ||
8413 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_STATS_RX_BYTES, | |
958751e0 ED |
8414 | u64_stats_read(&stats.rx_bytes), |
8415 | DEVLINK_ATTR_PAD)) | |
ddee9dbc OM |
8416 | goto nla_put_failure; |
8417 | ||
8418 | nla_nest_end(msg, attr); | |
8419 | ||
8420 | return 0; | |
8421 | ||
8422 | nla_put_failure: | |
8423 | nla_nest_cancel(msg, attr); | |
8424 | return -EMSGSIZE; | |
8425 | } | |
8426 | ||
0f420b6c IS |
8427 | static int devlink_nl_trap_fill(struct sk_buff *msg, struct devlink *devlink, |
8428 | const struct devlink_trap_item *trap_item, | |
8429 | enum devlink_command cmd, u32 portid, u32 seq, | |
8430 | int flags) | |
8431 | { | |
8432 | struct devlink_trap_group_item *group_item = trap_item->group_item; | |
8433 | void *hdr; | |
8434 | int err; | |
8435 | ||
8436 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
8437 | if (!hdr) | |
8438 | return -EMSGSIZE; | |
8439 | ||
8440 | if (devlink_nl_put_handle(msg, devlink)) | |
8441 | goto nla_put_failure; | |
8442 | ||
8443 | if (nla_put_string(msg, DEVLINK_ATTR_TRAP_GROUP_NAME, | |
8444 | group_item->group->name)) | |
8445 | goto nla_put_failure; | |
8446 | ||
8447 | if (nla_put_string(msg, DEVLINK_ATTR_TRAP_NAME, trap_item->trap->name)) | |
8448 | goto nla_put_failure; | |
8449 | ||
8450 | if (nla_put_u8(msg, DEVLINK_ATTR_TRAP_TYPE, trap_item->trap->type)) | |
8451 | goto nla_put_failure; | |
8452 | ||
8453 | if (trap_item->trap->generic && | |
8454 | nla_put_flag(msg, DEVLINK_ATTR_TRAP_GENERIC)) | |
8455 | goto nla_put_failure; | |
8456 | ||
8457 | if (nla_put_u8(msg, DEVLINK_ATTR_TRAP_ACTION, trap_item->action)) | |
8458 | goto nla_put_failure; | |
8459 | ||
8460 | err = devlink_trap_metadata_put(msg, trap_item->trap); | |
8461 | if (err) | |
8462 | goto nla_put_failure; | |
8463 | ||
ddee9dbc | 8464 | err = devlink_trap_stats_put(msg, devlink, trap_item); |
0f420b6c IS |
8465 | if (err) |
8466 | goto nla_put_failure; | |
8467 | ||
8468 | genlmsg_end(msg, hdr); | |
8469 | ||
8470 | return 0; | |
8471 | ||
8472 | nla_put_failure: | |
8473 | genlmsg_cancel(msg, hdr); | |
8474 | return -EMSGSIZE; | |
8475 | } | |
8476 | ||
8477 | static int devlink_nl_cmd_trap_get_doit(struct sk_buff *skb, | |
8478 | struct genl_info *info) | |
8479 | { | |
8480 | struct netlink_ext_ack *extack = info->extack; | |
8481 | struct devlink *devlink = info->user_ptr[0]; | |
8482 | struct devlink_trap_item *trap_item; | |
8483 | struct sk_buff *msg; | |
8484 | int err; | |
8485 | ||
8486 | if (list_empty(&devlink->trap_list)) | |
8487 | return -EOPNOTSUPP; | |
8488 | ||
8489 | trap_item = devlink_trap_item_get_from_info(devlink, info); | |
8490 | if (!trap_item) { | |
8491 | NL_SET_ERR_MSG_MOD(extack, "Device did not register this trap"); | |
8492 | return -ENOENT; | |
8493 | } | |
8494 | ||
8495 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
8496 | if (!msg) | |
8497 | return -ENOMEM; | |
8498 | ||
8499 | err = devlink_nl_trap_fill(msg, devlink, trap_item, | |
8500 | DEVLINK_CMD_TRAP_NEW, info->snd_portid, | |
8501 | info->snd_seq, 0); | |
8502 | if (err) | |
8503 | goto err_trap_fill; | |
8504 | ||
8505 | return genlmsg_reply(msg, info); | |
8506 | ||
8507 | err_trap_fill: | |
8508 | nlmsg_free(msg); | |
8509 | return err; | |
8510 | } | |
8511 | ||
8512 | static int devlink_nl_cmd_trap_get_dumpit(struct sk_buff *msg, | |
8513 | struct netlink_callback *cb) | |
8514 | { | |
8515 | struct devlink_trap_item *trap_item; | |
8516 | struct devlink *devlink; | |
8517 | int start = cb->args[0]; | |
11a861d7 | 8518 | unsigned long index; |
0f420b6c IS |
8519 | int idx = 0; |
8520 | int err; | |
8521 | ||
8522 | mutex_lock(&devlink_mutex); | |
294c4f57 | 8523 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
7715023a | 8524 | devl_lock(devlink); |
0f420b6c IS |
8525 | list_for_each_entry(trap_item, &devlink->trap_list, list) { |
8526 | if (idx < start) { | |
8527 | idx++; | |
8528 | continue; | |
8529 | } | |
8530 | err = devlink_nl_trap_fill(msg, devlink, trap_item, | |
8531 | DEVLINK_CMD_TRAP_NEW, | |
8532 | NETLINK_CB(cb->skb).portid, | |
8533 | cb->nlh->nlmsg_seq, | |
8534 | NLM_F_MULTI); | |
8535 | if (err) { | |
7715023a | 8536 | devl_unlock(devlink); |
437ebfd9 | 8537 | devlink_put(devlink); |
0f420b6c IS |
8538 | goto out; |
8539 | } | |
8540 | idx++; | |
8541 | } | |
7715023a | 8542 | devl_unlock(devlink); |
437ebfd9 | 8543 | devlink_put(devlink); |
0f420b6c IS |
8544 | } |
8545 | out: | |
8546 | mutex_unlock(&devlink_mutex); | |
8547 | ||
8548 | cb->args[0] = idx; | |
8549 | return msg->len; | |
8550 | } | |
8551 | ||
8552 | static int __devlink_trap_action_set(struct devlink *devlink, | |
8553 | struct devlink_trap_item *trap_item, | |
8554 | enum devlink_trap_action trap_action, | |
8555 | struct netlink_ext_ack *extack) | |
8556 | { | |
8557 | int err; | |
8558 | ||
8559 | if (trap_item->action != trap_action && | |
8560 | trap_item->trap->type != DEVLINK_TRAP_TYPE_DROP) { | |
8561 | NL_SET_ERR_MSG_MOD(extack, "Cannot change action of non-drop traps. Skipping"); | |
8562 | return 0; | |
8563 | } | |
8564 | ||
8565 | err = devlink->ops->trap_action_set(devlink, trap_item->trap, | |
c88e11e0 | 8566 | trap_action, extack); |
0f420b6c IS |
8567 | if (err) |
8568 | return err; | |
8569 | ||
8570 | trap_item->action = trap_action; | |
8571 | ||
8572 | return 0; | |
8573 | } | |
8574 | ||
8575 | static int devlink_trap_action_set(struct devlink *devlink, | |
8576 | struct devlink_trap_item *trap_item, | |
8577 | struct genl_info *info) | |
8578 | { | |
8579 | enum devlink_trap_action trap_action; | |
8580 | int err; | |
8581 | ||
8582 | if (!info->attrs[DEVLINK_ATTR_TRAP_ACTION]) | |
8583 | return 0; | |
8584 | ||
8585 | err = devlink_trap_action_get_from_info(info, &trap_action); | |
8586 | if (err) { | |
8587 | NL_SET_ERR_MSG_MOD(info->extack, "Invalid trap action"); | |
8588 | return -EINVAL; | |
8589 | } | |
8590 | ||
8591 | return __devlink_trap_action_set(devlink, trap_item, trap_action, | |
8592 | info->extack); | |
8593 | } | |
8594 | ||
8595 | static int devlink_nl_cmd_trap_set_doit(struct sk_buff *skb, | |
8596 | struct genl_info *info) | |
8597 | { | |
8598 | struct netlink_ext_ack *extack = info->extack; | |
8599 | struct devlink *devlink = info->user_ptr[0]; | |
8600 | struct devlink_trap_item *trap_item; | |
0f420b6c IS |
8601 | |
8602 | if (list_empty(&devlink->trap_list)) | |
8603 | return -EOPNOTSUPP; | |
8604 | ||
8605 | trap_item = devlink_trap_item_get_from_info(devlink, info); | |
8606 | if (!trap_item) { | |
8607 | NL_SET_ERR_MSG_MOD(extack, "Device did not register this trap"); | |
8608 | return -ENOENT; | |
8609 | } | |
8610 | ||
8daa76a5 | 8611 | return devlink_trap_action_set(devlink, trap_item, info); |
0f420b6c IS |
8612 | } |
8613 | ||
8614 | static struct devlink_trap_group_item * | |
8615 | devlink_trap_group_item_lookup(struct devlink *devlink, const char *name) | |
8616 | { | |
8617 | struct devlink_trap_group_item *group_item; | |
8618 | ||
8619 | list_for_each_entry(group_item, &devlink->trap_group_list, list) { | |
8620 | if (!strcmp(group_item->group->name, name)) | |
8621 | return group_item; | |
8622 | } | |
8623 | ||
8624 | return NULL; | |
8625 | } | |
8626 | ||
107f1678 IS |
8627 | static struct devlink_trap_group_item * |
8628 | devlink_trap_group_item_lookup_by_id(struct devlink *devlink, u16 id) | |
8629 | { | |
8630 | struct devlink_trap_group_item *group_item; | |
8631 | ||
8632 | list_for_each_entry(group_item, &devlink->trap_group_list, list) { | |
8633 | if (group_item->group->id == id) | |
8634 | return group_item; | |
8635 | } | |
8636 | ||
8637 | return NULL; | |
8638 | } | |
8639 | ||
0f420b6c IS |
8640 | static struct devlink_trap_group_item * |
8641 | devlink_trap_group_item_get_from_info(struct devlink *devlink, | |
8642 | struct genl_info *info) | |
8643 | { | |
8644 | char *name; | |
8645 | ||
8646 | if (!info->attrs[DEVLINK_ATTR_TRAP_GROUP_NAME]) | |
8647 | return NULL; | |
8648 | name = nla_data(info->attrs[DEVLINK_ATTR_TRAP_GROUP_NAME]); | |
8649 | ||
8650 | return devlink_trap_group_item_lookup(devlink, name); | |
8651 | } | |
8652 | ||
8653 | static int | |
8654 | devlink_nl_trap_group_fill(struct sk_buff *msg, struct devlink *devlink, | |
8655 | const struct devlink_trap_group_item *group_item, | |
8656 | enum devlink_command cmd, u32 portid, u32 seq, | |
8657 | int flags) | |
8658 | { | |
8659 | void *hdr; | |
8660 | int err; | |
8661 | ||
8662 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
8663 | if (!hdr) | |
8664 | return -EMSGSIZE; | |
8665 | ||
8666 | if (devlink_nl_put_handle(msg, devlink)) | |
8667 | goto nla_put_failure; | |
8668 | ||
8669 | if (nla_put_string(msg, DEVLINK_ATTR_TRAP_GROUP_NAME, | |
8670 | group_item->group->name)) | |
8671 | goto nla_put_failure; | |
8672 | ||
8673 | if (group_item->group->generic && | |
8674 | nla_put_flag(msg, DEVLINK_ATTR_TRAP_GENERIC)) | |
8675 | goto nla_put_failure; | |
8676 | ||
f9f54392 IS |
8677 | if (group_item->policer_item && |
8678 | nla_put_u32(msg, DEVLINK_ATTR_TRAP_POLICER_ID, | |
8679 | group_item->policer_item->policer->id)) | |
8680 | goto nla_put_failure; | |
8681 | ||
ddee9dbc | 8682 | err = devlink_trap_group_stats_put(msg, group_item->stats); |
0f420b6c IS |
8683 | if (err) |
8684 | goto nla_put_failure; | |
8685 | ||
8686 | genlmsg_end(msg, hdr); | |
8687 | ||
8688 | return 0; | |
8689 | ||
8690 | nla_put_failure: | |
8691 | genlmsg_cancel(msg, hdr); | |
8692 | return -EMSGSIZE; | |
8693 | } | |
8694 | ||
8695 | static int devlink_nl_cmd_trap_group_get_doit(struct sk_buff *skb, | |
8696 | struct genl_info *info) | |
8697 | { | |
8698 | struct netlink_ext_ack *extack = info->extack; | |
8699 | struct devlink *devlink = info->user_ptr[0]; | |
8700 | struct devlink_trap_group_item *group_item; | |
8701 | struct sk_buff *msg; | |
8702 | int err; | |
8703 | ||
8704 | if (list_empty(&devlink->trap_group_list)) | |
8705 | return -EOPNOTSUPP; | |
8706 | ||
8707 | group_item = devlink_trap_group_item_get_from_info(devlink, info); | |
8708 | if (!group_item) { | |
8709 | NL_SET_ERR_MSG_MOD(extack, "Device did not register this trap group"); | |
8710 | return -ENOENT; | |
8711 | } | |
8712 | ||
8713 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
8714 | if (!msg) | |
8715 | return -ENOMEM; | |
8716 | ||
8717 | err = devlink_nl_trap_group_fill(msg, devlink, group_item, | |
8718 | DEVLINK_CMD_TRAP_GROUP_NEW, | |
8719 | info->snd_portid, info->snd_seq, 0); | |
8720 | if (err) | |
8721 | goto err_trap_group_fill; | |
8722 | ||
8723 | return genlmsg_reply(msg, info); | |
8724 | ||
8725 | err_trap_group_fill: | |
8726 | nlmsg_free(msg); | |
8727 | return err; | |
8728 | } | |
8729 | ||
8730 | static int devlink_nl_cmd_trap_group_get_dumpit(struct sk_buff *msg, | |
8731 | struct netlink_callback *cb) | |
8732 | { | |
8733 | enum devlink_command cmd = DEVLINK_CMD_TRAP_GROUP_NEW; | |
8734 | struct devlink_trap_group_item *group_item; | |
8735 | u32 portid = NETLINK_CB(cb->skb).portid; | |
8736 | struct devlink *devlink; | |
8737 | int start = cb->args[0]; | |
11a861d7 | 8738 | unsigned long index; |
0f420b6c IS |
8739 | int idx = 0; |
8740 | int err; | |
8741 | ||
8742 | mutex_lock(&devlink_mutex); | |
294c4f57 | 8743 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
7715023a | 8744 | devl_lock(devlink); |
0f420b6c IS |
8745 | list_for_each_entry(group_item, &devlink->trap_group_list, |
8746 | list) { | |
8747 | if (idx < start) { | |
8748 | idx++; | |
8749 | continue; | |
8750 | } | |
8751 | err = devlink_nl_trap_group_fill(msg, devlink, | |
8752 | group_item, cmd, | |
8753 | portid, | |
8754 | cb->nlh->nlmsg_seq, | |
8755 | NLM_F_MULTI); | |
8756 | if (err) { | |
7715023a | 8757 | devl_unlock(devlink); |
437ebfd9 | 8758 | devlink_put(devlink); |
0f420b6c IS |
8759 | goto out; |
8760 | } | |
8761 | idx++; | |
8762 | } | |
7715023a | 8763 | devl_unlock(devlink); |
437ebfd9 | 8764 | devlink_put(devlink); |
0f420b6c IS |
8765 | } |
8766 | out: | |
8767 | mutex_unlock(&devlink_mutex); | |
8768 | ||
8769 | cb->args[0] = idx; | |
8770 | return msg->len; | |
8771 | } | |
8772 | ||
8773 | static int | |
8774 | __devlink_trap_group_action_set(struct devlink *devlink, | |
8775 | struct devlink_trap_group_item *group_item, | |
8776 | enum devlink_trap_action trap_action, | |
8777 | struct netlink_ext_ack *extack) | |
8778 | { | |
8779 | const char *group_name = group_item->group->name; | |
8780 | struct devlink_trap_item *trap_item; | |
8781 | int err; | |
8782 | ||
c50bf2be IC |
8783 | if (devlink->ops->trap_group_action_set) { |
8784 | err = devlink->ops->trap_group_action_set(devlink, group_item->group, | |
8785 | trap_action, extack); | |
8786 | if (err) | |
8787 | return err; | |
8788 | ||
8789 | list_for_each_entry(trap_item, &devlink->trap_list, list) { | |
8790 | if (strcmp(trap_item->group_item->group->name, group_name)) | |
8791 | continue; | |
8792 | if (trap_item->action != trap_action && | |
8793 | trap_item->trap->type != DEVLINK_TRAP_TYPE_DROP) | |
8794 | continue; | |
8795 | trap_item->action = trap_action; | |
8796 | } | |
8797 | ||
8798 | return 0; | |
8799 | } | |
8800 | ||
0f420b6c | 8801 | list_for_each_entry(trap_item, &devlink->trap_list, list) { |
107f1678 | 8802 | if (strcmp(trap_item->group_item->group->name, group_name)) |
0f420b6c IS |
8803 | continue; |
8804 | err = __devlink_trap_action_set(devlink, trap_item, | |
8805 | trap_action, extack); | |
8806 | if (err) | |
8807 | return err; | |
8808 | } | |
8809 | ||
8810 | return 0; | |
8811 | } | |
8812 | ||
8813 | static int | |
8814 | devlink_trap_group_action_set(struct devlink *devlink, | |
8815 | struct devlink_trap_group_item *group_item, | |
c064875a | 8816 | struct genl_info *info, bool *p_modified) |
0f420b6c IS |
8817 | { |
8818 | enum devlink_trap_action trap_action; | |
8819 | int err; | |
8820 | ||
8821 | if (!info->attrs[DEVLINK_ATTR_TRAP_ACTION]) | |
8822 | return 0; | |
8823 | ||
8824 | err = devlink_trap_action_get_from_info(info, &trap_action); | |
8825 | if (err) { | |
8826 | NL_SET_ERR_MSG_MOD(info->extack, "Invalid trap action"); | |
8827 | return -EINVAL; | |
8828 | } | |
8829 | ||
8830 | err = __devlink_trap_group_action_set(devlink, group_item, trap_action, | |
8831 | info->extack); | |
8832 | if (err) | |
8833 | return err; | |
8834 | ||
c064875a IS |
8835 | *p_modified = true; |
8836 | ||
8837 | return 0; | |
8838 | } | |
8839 | ||
8840 | static int devlink_trap_group_set(struct devlink *devlink, | |
8841 | struct devlink_trap_group_item *group_item, | |
8842 | struct genl_info *info) | |
8843 | { | |
8844 | struct devlink_trap_policer_item *policer_item; | |
8845 | struct netlink_ext_ack *extack = info->extack; | |
8846 | const struct devlink_trap_policer *policer; | |
8847 | struct nlattr **attrs = info->attrs; | |
8848 | int err; | |
8849 | ||
8850 | if (!attrs[DEVLINK_ATTR_TRAP_POLICER_ID]) | |
8851 | return 0; | |
8852 | ||
8853 | if (!devlink->ops->trap_group_set) | |
8854 | return -EOPNOTSUPP; | |
8855 | ||
8856 | policer_item = group_item->policer_item; | |
8857 | if (attrs[DEVLINK_ATTR_TRAP_POLICER_ID]) { | |
8858 | u32 policer_id; | |
8859 | ||
8860 | policer_id = nla_get_u32(attrs[DEVLINK_ATTR_TRAP_POLICER_ID]); | |
8861 | policer_item = devlink_trap_policer_item_lookup(devlink, | |
8862 | policer_id); | |
8863 | if (policer_id && !policer_item) { | |
8864 | NL_SET_ERR_MSG_MOD(extack, "Device did not register this trap policer"); | |
8865 | return -ENOENT; | |
8866 | } | |
8867 | } | |
8868 | policer = policer_item ? policer_item->policer : NULL; | |
8869 | ||
c88e11e0 IS |
8870 | err = devlink->ops->trap_group_set(devlink, group_item->group, policer, |
8871 | extack); | |
c064875a IS |
8872 | if (err) |
8873 | return err; | |
8874 | ||
8875 | group_item->policer_item = policer_item; | |
8876 | ||
0f420b6c IS |
8877 | return 0; |
8878 | } | |
8879 | ||
8880 | static int devlink_nl_cmd_trap_group_set_doit(struct sk_buff *skb, | |
8881 | struct genl_info *info) | |
8882 | { | |
8883 | struct netlink_ext_ack *extack = info->extack; | |
8884 | struct devlink *devlink = info->user_ptr[0]; | |
8885 | struct devlink_trap_group_item *group_item; | |
c064875a | 8886 | bool modified = false; |
0f420b6c IS |
8887 | int err; |
8888 | ||
8889 | if (list_empty(&devlink->trap_group_list)) | |
8890 | return -EOPNOTSUPP; | |
8891 | ||
8892 | group_item = devlink_trap_group_item_get_from_info(devlink, info); | |
8893 | if (!group_item) { | |
8894 | NL_SET_ERR_MSG_MOD(extack, "Device did not register this trap group"); | |
8895 | return -ENOENT; | |
8896 | } | |
8897 | ||
c064875a IS |
8898 | err = devlink_trap_group_action_set(devlink, group_item, info, |
8899 | &modified); | |
0f420b6c IS |
8900 | if (err) |
8901 | return err; | |
8902 | ||
c064875a IS |
8903 | err = devlink_trap_group_set(devlink, group_item, info); |
8904 | if (err) | |
8905 | goto err_trap_group_set; | |
8906 | ||
0f420b6c | 8907 | return 0; |
c064875a IS |
8908 | |
8909 | err_trap_group_set: | |
8910 | if (modified) | |
8911 | NL_SET_ERR_MSG_MOD(extack, "Trap group set failed, but some changes were committed already"); | |
8912 | return err; | |
0f420b6c IS |
8913 | } |
8914 | ||
1e8c6619 IS |
8915 | static struct devlink_trap_policer_item * |
8916 | devlink_trap_policer_item_get_from_info(struct devlink *devlink, | |
8917 | struct genl_info *info) | |
8918 | { | |
8919 | u32 id; | |
8920 | ||
8921 | if (!info->attrs[DEVLINK_ATTR_TRAP_POLICER_ID]) | |
8922 | return NULL; | |
8923 | id = nla_get_u32(info->attrs[DEVLINK_ATTR_TRAP_POLICER_ID]); | |
8924 | ||
8925 | return devlink_trap_policer_item_lookup(devlink, id); | |
8926 | } | |
8927 | ||
8928 | static int | |
8929 | devlink_trap_policer_stats_put(struct sk_buff *msg, struct devlink *devlink, | |
8930 | const struct devlink_trap_policer *policer) | |
8931 | { | |
8932 | struct nlattr *attr; | |
8933 | u64 drops; | |
8934 | int err; | |
8935 | ||
8936 | if (!devlink->ops->trap_policer_counter_get) | |
8937 | return 0; | |
8938 | ||
8939 | err = devlink->ops->trap_policer_counter_get(devlink, policer, &drops); | |
8940 | if (err) | |
8941 | return err; | |
8942 | ||
8943 | attr = nla_nest_start(msg, DEVLINK_ATTR_STATS); | |
8944 | if (!attr) | |
8945 | return -EMSGSIZE; | |
8946 | ||
8947 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_STATS_RX_DROPPED, drops, | |
8948 | DEVLINK_ATTR_PAD)) | |
8949 | goto nla_put_failure; | |
8950 | ||
8951 | nla_nest_end(msg, attr); | |
8952 | ||
8953 | return 0; | |
8954 | ||
8955 | nla_put_failure: | |
8956 | nla_nest_cancel(msg, attr); | |
8957 | return -EMSGSIZE; | |
8958 | } | |
8959 | ||
8960 | static int | |
8961 | devlink_nl_trap_policer_fill(struct sk_buff *msg, struct devlink *devlink, | |
8962 | const struct devlink_trap_policer_item *policer_item, | |
8963 | enum devlink_command cmd, u32 portid, u32 seq, | |
8964 | int flags) | |
8965 | { | |
8966 | void *hdr; | |
8967 | int err; | |
8968 | ||
8969 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
8970 | if (!hdr) | |
8971 | return -EMSGSIZE; | |
8972 | ||
8973 | if (devlink_nl_put_handle(msg, devlink)) | |
8974 | goto nla_put_failure; | |
8975 | ||
8976 | if (nla_put_u32(msg, DEVLINK_ATTR_TRAP_POLICER_ID, | |
8977 | policer_item->policer->id)) | |
8978 | goto nla_put_failure; | |
8979 | ||
8980 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_TRAP_POLICER_RATE, | |
8981 | policer_item->rate, DEVLINK_ATTR_PAD)) | |
8982 | goto nla_put_failure; | |
8983 | ||
8984 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_TRAP_POLICER_BURST, | |
8985 | policer_item->burst, DEVLINK_ATTR_PAD)) | |
8986 | goto nla_put_failure; | |
8987 | ||
8988 | err = devlink_trap_policer_stats_put(msg, devlink, | |
8989 | policer_item->policer); | |
8990 | if (err) | |
8991 | goto nla_put_failure; | |
8992 | ||
8993 | genlmsg_end(msg, hdr); | |
8994 | ||
8995 | return 0; | |
8996 | ||
8997 | nla_put_failure: | |
8998 | genlmsg_cancel(msg, hdr); | |
8999 | return -EMSGSIZE; | |
9000 | } | |
9001 | ||
9002 | static int devlink_nl_cmd_trap_policer_get_doit(struct sk_buff *skb, | |
9003 | struct genl_info *info) | |
9004 | { | |
9005 | struct devlink_trap_policer_item *policer_item; | |
9006 | struct netlink_ext_ack *extack = info->extack; | |
9007 | struct devlink *devlink = info->user_ptr[0]; | |
9008 | struct sk_buff *msg; | |
9009 | int err; | |
9010 | ||
9011 | if (list_empty(&devlink->trap_policer_list)) | |
9012 | return -EOPNOTSUPP; | |
9013 | ||
9014 | policer_item = devlink_trap_policer_item_get_from_info(devlink, info); | |
9015 | if (!policer_item) { | |
9016 | NL_SET_ERR_MSG_MOD(extack, "Device did not register this trap policer"); | |
9017 | return -ENOENT; | |
9018 | } | |
9019 | ||
9020 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
9021 | if (!msg) | |
9022 | return -ENOMEM; | |
9023 | ||
9024 | err = devlink_nl_trap_policer_fill(msg, devlink, policer_item, | |
9025 | DEVLINK_CMD_TRAP_POLICER_NEW, | |
9026 | info->snd_portid, info->snd_seq, 0); | |
9027 | if (err) | |
9028 | goto err_trap_policer_fill; | |
9029 | ||
9030 | return genlmsg_reply(msg, info); | |
9031 | ||
9032 | err_trap_policer_fill: | |
9033 | nlmsg_free(msg); | |
9034 | return err; | |
9035 | } | |
9036 | ||
9037 | static int devlink_nl_cmd_trap_policer_get_dumpit(struct sk_buff *msg, | |
9038 | struct netlink_callback *cb) | |
9039 | { | |
9040 | enum devlink_command cmd = DEVLINK_CMD_TRAP_POLICER_NEW; | |
9041 | struct devlink_trap_policer_item *policer_item; | |
9042 | u32 portid = NETLINK_CB(cb->skb).portid; | |
9043 | struct devlink *devlink; | |
9044 | int start = cb->args[0]; | |
11a861d7 | 9045 | unsigned long index; |
1e8c6619 IS |
9046 | int idx = 0; |
9047 | int err; | |
9048 | ||
9049 | mutex_lock(&devlink_mutex); | |
294c4f57 | 9050 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
7715023a | 9051 | devl_lock(devlink); |
1e8c6619 IS |
9052 | list_for_each_entry(policer_item, &devlink->trap_policer_list, |
9053 | list) { | |
9054 | if (idx < start) { | |
9055 | idx++; | |
9056 | continue; | |
9057 | } | |
9058 | err = devlink_nl_trap_policer_fill(msg, devlink, | |
9059 | policer_item, cmd, | |
9060 | portid, | |
9061 | cb->nlh->nlmsg_seq, | |
9062 | NLM_F_MULTI); | |
9063 | if (err) { | |
7715023a | 9064 | devl_unlock(devlink); |
437ebfd9 | 9065 | devlink_put(devlink); |
1e8c6619 IS |
9066 | goto out; |
9067 | } | |
9068 | idx++; | |
9069 | } | |
7715023a | 9070 | devl_unlock(devlink); |
437ebfd9 | 9071 | devlink_put(devlink); |
1e8c6619 IS |
9072 | } |
9073 | out: | |
9074 | mutex_unlock(&devlink_mutex); | |
9075 | ||
9076 | cb->args[0] = idx; | |
9077 | return msg->len; | |
9078 | } | |
9079 | ||
9080 | static int | |
9081 | devlink_trap_policer_set(struct devlink *devlink, | |
9082 | struct devlink_trap_policer_item *policer_item, | |
9083 | struct genl_info *info) | |
9084 | { | |
9085 | struct netlink_ext_ack *extack = info->extack; | |
9086 | struct nlattr **attrs = info->attrs; | |
9087 | u64 rate, burst; | |
9088 | int err; | |
9089 | ||
9090 | rate = policer_item->rate; | |
9091 | burst = policer_item->burst; | |
9092 | ||
9093 | if (attrs[DEVLINK_ATTR_TRAP_POLICER_RATE]) | |
9094 | rate = nla_get_u64(attrs[DEVLINK_ATTR_TRAP_POLICER_RATE]); | |
9095 | ||
9096 | if (attrs[DEVLINK_ATTR_TRAP_POLICER_BURST]) | |
9097 | burst = nla_get_u64(attrs[DEVLINK_ATTR_TRAP_POLICER_BURST]); | |
9098 | ||
9099 | if (rate < policer_item->policer->min_rate) { | |
9100 | NL_SET_ERR_MSG_MOD(extack, "Policer rate lower than limit"); | |
9101 | return -EINVAL; | |
9102 | } | |
9103 | ||
9104 | if (rate > policer_item->policer->max_rate) { | |
9105 | NL_SET_ERR_MSG_MOD(extack, "Policer rate higher than limit"); | |
9106 | return -EINVAL; | |
9107 | } | |
9108 | ||
9109 | if (burst < policer_item->policer->min_burst) { | |
9110 | NL_SET_ERR_MSG_MOD(extack, "Policer burst size lower than limit"); | |
9111 | return -EINVAL; | |
9112 | } | |
9113 | ||
9114 | if (burst > policer_item->policer->max_burst) { | |
9115 | NL_SET_ERR_MSG_MOD(extack, "Policer burst size higher than limit"); | |
9116 | return -EINVAL; | |
9117 | } | |
9118 | ||
9119 | err = devlink->ops->trap_policer_set(devlink, policer_item->policer, | |
9120 | rate, burst, info->extack); | |
9121 | if (err) | |
9122 | return err; | |
9123 | ||
9124 | policer_item->rate = rate; | |
9125 | policer_item->burst = burst; | |
9126 | ||
9127 | return 0; | |
9128 | } | |
9129 | ||
9130 | static int devlink_nl_cmd_trap_policer_set_doit(struct sk_buff *skb, | |
9131 | struct genl_info *info) | |
9132 | { | |
9133 | struct devlink_trap_policer_item *policer_item; | |
9134 | struct netlink_ext_ack *extack = info->extack; | |
9135 | struct devlink *devlink = info->user_ptr[0]; | |
9136 | ||
9137 | if (list_empty(&devlink->trap_policer_list)) | |
9138 | return -EOPNOTSUPP; | |
9139 | ||
9140 | if (!devlink->ops->trap_policer_set) | |
9141 | return -EOPNOTSUPP; | |
9142 | ||
9143 | policer_item = devlink_trap_policer_item_get_from_info(devlink, info); | |
9144 | if (!policer_item) { | |
9145 | NL_SET_ERR_MSG_MOD(extack, "Device did not register this trap policer"); | |
9146 | return -ENOENT; | |
9147 | } | |
9148 | ||
9149 | return devlink_trap_policer_set(devlink, policer_item, info); | |
9150 | } | |
9151 | ||
bfcd3a46 | 9152 | static const struct nla_policy devlink_nl_policy[DEVLINK_ATTR_MAX + 1] = { |
1e8c6619 IS |
9153 | [DEVLINK_ATTR_UNSPEC] = { .strict_start_type = |
9154 | DEVLINK_ATTR_TRAP_POLICER_ID }, | |
bfcd3a46 JP |
9155 | [DEVLINK_ATTR_BUS_NAME] = { .type = NLA_NUL_STRING }, |
9156 | [DEVLINK_ATTR_DEV_NAME] = { .type = NLA_NUL_STRING }, | |
9157 | [DEVLINK_ATTR_PORT_INDEX] = { .type = NLA_U32 }, | |
c49a9440 PP |
9158 | [DEVLINK_ATTR_PORT_TYPE] = NLA_POLICY_RANGE(NLA_U16, DEVLINK_PORT_TYPE_AUTO, |
9159 | DEVLINK_PORT_TYPE_IB), | |
bfcd3a46 | 9160 | [DEVLINK_ATTR_PORT_SPLIT_COUNT] = { .type = NLA_U32 }, |
bf797471 JP |
9161 | [DEVLINK_ATTR_SB_INDEX] = { .type = NLA_U32 }, |
9162 | [DEVLINK_ATTR_SB_POOL_INDEX] = { .type = NLA_U16 }, | |
9163 | [DEVLINK_ATTR_SB_POOL_TYPE] = { .type = NLA_U8 }, | |
9164 | [DEVLINK_ATTR_SB_POOL_SIZE] = { .type = NLA_U32 }, | |
9165 | [DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE] = { .type = NLA_U8 }, | |
9166 | [DEVLINK_ATTR_SB_THRESHOLD] = { .type = NLA_U32 }, | |
9167 | [DEVLINK_ATTR_SB_TC_INDEX] = { .type = NLA_U16 }, | |
ba356c90 PP |
9168 | [DEVLINK_ATTR_ESWITCH_MODE] = NLA_POLICY_RANGE(NLA_U16, DEVLINK_ESWITCH_MODE_LEGACY, |
9169 | DEVLINK_ESWITCH_MODE_SWITCHDEV), | |
59bfde01 | 9170 | [DEVLINK_ATTR_ESWITCH_INLINE_MODE] = { .type = NLA_U8 }, |
f43e9b06 | 9171 | [DEVLINK_ATTR_ESWITCH_ENCAP_MODE] = { .type = NLA_U8 }, |
1555d204 AS |
9172 | [DEVLINK_ATTR_DPIPE_TABLE_NAME] = { .type = NLA_NUL_STRING }, |
9173 | [DEVLINK_ATTR_DPIPE_TABLE_COUNTERS_ENABLED] = { .type = NLA_U8 }, | |
d9f9b9a4 AS |
9174 | [DEVLINK_ATTR_RESOURCE_ID] = { .type = NLA_U64}, |
9175 | [DEVLINK_ATTR_RESOURCE_SIZE] = { .type = NLA_U64}, | |
e3b7ca18 MS |
9176 | [DEVLINK_ATTR_PARAM_NAME] = { .type = NLA_NUL_STRING }, |
9177 | [DEVLINK_ATTR_PARAM_TYPE] = { .type = NLA_U8 }, | |
9178 | [DEVLINK_ATTR_PARAM_VALUE_CMODE] = { .type = NLA_U8 }, | |
d8db7ea5 | 9179 | [DEVLINK_ATTR_REGION_NAME] = { .type = NLA_NUL_STRING }, |
866319bb | 9180 | [DEVLINK_ATTR_REGION_SNAPSHOT_ID] = { .type = NLA_U32 }, |
ff3b63b8 JK |
9181 | [DEVLINK_ATTR_REGION_CHUNK_ADDR] = { .type = NLA_U64 }, |
9182 | [DEVLINK_ATTR_REGION_CHUNK_LEN] = { .type = NLA_U64 }, | |
7afe335a | 9183 | [DEVLINK_ATTR_HEALTH_REPORTER_NAME] = { .type = NLA_NUL_STRING }, |
a1e55ec0 EBE |
9184 | [DEVLINK_ATTR_HEALTH_REPORTER_GRACEFUL_PERIOD] = { .type = NLA_U64 }, |
9185 | [DEVLINK_ATTR_HEALTH_REPORTER_AUTO_RECOVER] = { .type = NLA_U8 }, | |
76726ccb JK |
9186 | [DEVLINK_ATTR_FLASH_UPDATE_FILE_NAME] = { .type = NLA_NUL_STRING }, |
9187 | [DEVLINK_ATTR_FLASH_UPDATE_COMPONENT] = { .type = NLA_NUL_STRING }, | |
5d5b4128 JK |
9188 | [DEVLINK_ATTR_FLASH_UPDATE_OVERWRITE_MASK] = |
9189 | NLA_POLICY_BITFIELD32(DEVLINK_SUPPORTED_FLASH_OVERWRITE_SECTIONS), | |
0f420b6c IS |
9190 | [DEVLINK_ATTR_TRAP_NAME] = { .type = NLA_NUL_STRING }, |
9191 | [DEVLINK_ATTR_TRAP_ACTION] = { .type = NLA_U8 }, | |
9192 | [DEVLINK_ATTR_TRAP_GROUP_NAME] = { .type = NLA_NUL_STRING }, | |
070c63f2 JP |
9193 | [DEVLINK_ATTR_NETNS_PID] = { .type = NLA_U32 }, |
9194 | [DEVLINK_ATTR_NETNS_FD] = { .type = NLA_U32 }, | |
9195 | [DEVLINK_ATTR_NETNS_ID] = { .type = NLA_U32 }, | |
48bb52c8 | 9196 | [DEVLINK_ATTR_HEALTH_REPORTER_AUTO_DUMP] = { .type = NLA_U8 }, |
1e8c6619 IS |
9197 | [DEVLINK_ATTR_TRAP_POLICER_ID] = { .type = NLA_U32 }, |
9198 | [DEVLINK_ATTR_TRAP_POLICER_RATE] = { .type = NLA_U64 }, | |
9199 | [DEVLINK_ATTR_TRAP_POLICER_BURST] = { .type = NLA_U64 }, | |
a1e8ae90 | 9200 | [DEVLINK_ATTR_PORT_FUNCTION] = { .type = NLA_NESTED }, |
ccdf0721 MS |
9201 | [DEVLINK_ATTR_RELOAD_ACTION] = NLA_POLICY_RANGE(NLA_U8, DEVLINK_RELOAD_ACTION_DRIVER_REINIT, |
9202 | DEVLINK_RELOAD_ACTION_MAX), | |
dc64cc7c | 9203 | [DEVLINK_ATTR_RELOAD_LIMITS] = NLA_POLICY_BITFIELD32(DEVLINK_RELOAD_LIMITS_VALID_MASK), |
cd76dcd6 PP |
9204 | [DEVLINK_ATTR_PORT_FLAVOUR] = { .type = NLA_U16 }, |
9205 | [DEVLINK_ATTR_PORT_PCI_PF_NUMBER] = { .type = NLA_U16 }, | |
9206 | [DEVLINK_ATTR_PORT_PCI_SF_NUMBER] = { .type = NLA_U32 }, | |
9207 | [DEVLINK_ATTR_PORT_CONTROLLER_NUMBER] = { .type = NLA_U32 }, | |
4677efc4 | 9208 | [DEVLINK_ATTR_RATE_TYPE] = { .type = NLA_U16 }, |
1897db2e DL |
9209 | [DEVLINK_ATTR_RATE_TX_SHARE] = { .type = NLA_U64 }, |
9210 | [DEVLINK_ATTR_RATE_TX_MAX] = { .type = NLA_U64 }, | |
a8ecb93e | 9211 | [DEVLINK_ATTR_RATE_NODE_NAME] = { .type = NLA_NUL_STRING }, |
d7555984 | 9212 | [DEVLINK_ATTR_RATE_PARENT_NODE_NAME] = { .type = NLA_NUL_STRING }, |
c246f9b5 | 9213 | [DEVLINK_ATTR_LINECARD_INDEX] = { .type = NLA_U32 }, |
fcdc8ce2 | 9214 | [DEVLINK_ATTR_LINECARD_TYPE] = { .type = NLA_NUL_STRING }, |
08f588fa | 9215 | [DEVLINK_ATTR_SELFTESTS] = { .type = NLA_NESTED }, |
bfcd3a46 JP |
9216 | }; |
9217 | ||
66a9b928 | 9218 | static const struct genl_small_ops devlink_nl_ops[] = { |
bfcd3a46 JP |
9219 | { |
9220 | .cmd = DEVLINK_CMD_GET, | |
ef6243ac | 9221 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bfcd3a46 JP |
9222 | .doit = devlink_nl_cmd_get_doit, |
9223 | .dumpit = devlink_nl_cmd_get_dumpit, | |
bfcd3a46 JP |
9224 | /* can be retrieved by unprivileged users */ |
9225 | }, | |
9226 | { | |
9227 | .cmd = DEVLINK_CMD_PORT_GET, | |
ef6243ac | 9228 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bfcd3a46 JP |
9229 | .doit = devlink_nl_cmd_port_get_doit, |
9230 | .dumpit = devlink_nl_cmd_port_get_dumpit, | |
bfcd3a46 JP |
9231 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, |
9232 | /* can be retrieved by unprivileged users */ | |
9233 | }, | |
9234 | { | |
9235 | .cmd = DEVLINK_CMD_PORT_SET, | |
ef6243ac | 9236 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bfcd3a46 | 9237 | .doit = devlink_nl_cmd_port_set_doit, |
bfcd3a46 JP |
9238 | .flags = GENL_ADMIN_PERM, |
9239 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, | |
9240 | }, | |
4677efc4 DL |
9241 | { |
9242 | .cmd = DEVLINK_CMD_RATE_GET, | |
9243 | .doit = devlink_nl_cmd_rate_get_doit, | |
9244 | .dumpit = devlink_nl_cmd_rate_get_dumpit, | |
9245 | .internal_flags = DEVLINK_NL_FLAG_NEED_RATE, | |
9246 | /* can be retrieved by unprivileged users */ | |
9247 | }, | |
1897db2e DL |
9248 | { |
9249 | .cmd = DEVLINK_CMD_RATE_SET, | |
9250 | .doit = devlink_nl_cmd_rate_set_doit, | |
9251 | .flags = GENL_ADMIN_PERM, | |
9252 | .internal_flags = DEVLINK_NL_FLAG_NEED_RATE, | |
9253 | }, | |
a8ecb93e DL |
9254 | { |
9255 | .cmd = DEVLINK_CMD_RATE_NEW, | |
9256 | .doit = devlink_nl_cmd_rate_new_doit, | |
9257 | .flags = GENL_ADMIN_PERM, | |
9258 | }, | |
9259 | { | |
9260 | .cmd = DEVLINK_CMD_RATE_DEL, | |
9261 | .doit = devlink_nl_cmd_rate_del_doit, | |
9262 | .flags = GENL_ADMIN_PERM, | |
9263 | .internal_flags = DEVLINK_NL_FLAG_NEED_RATE_NODE, | |
9264 | }, | |
bfcd3a46 JP |
9265 | { |
9266 | .cmd = DEVLINK_CMD_PORT_SPLIT, | |
ef6243ac | 9267 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bfcd3a46 | 9268 | .doit = devlink_nl_cmd_port_split_doit, |
bfcd3a46 | 9269 | .flags = GENL_ADMIN_PERM, |
706217c1 | 9270 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, |
bfcd3a46 JP |
9271 | }, |
9272 | { | |
9273 | .cmd = DEVLINK_CMD_PORT_UNSPLIT, | |
ef6243ac | 9274 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bfcd3a46 | 9275 | .doit = devlink_nl_cmd_port_unsplit_doit, |
bfcd3a46 | 9276 | .flags = GENL_ADMIN_PERM, |
706217c1 | 9277 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, |
bfcd3a46 | 9278 | }, |
cd76dcd6 PP |
9279 | { |
9280 | .cmd = DEVLINK_CMD_PORT_NEW, | |
9281 | .doit = devlink_nl_cmd_port_new_doit, | |
9282 | .flags = GENL_ADMIN_PERM, | |
cd76dcd6 PP |
9283 | }, |
9284 | { | |
9285 | .cmd = DEVLINK_CMD_PORT_DEL, | |
9286 | .doit = devlink_nl_cmd_port_del_doit, | |
9287 | .flags = GENL_ADMIN_PERM, | |
cd76dcd6 | 9288 | }, |
c246f9b5 JP |
9289 | { |
9290 | .cmd = DEVLINK_CMD_LINECARD_GET, | |
9291 | .doit = devlink_nl_cmd_linecard_get_doit, | |
9292 | .dumpit = devlink_nl_cmd_linecard_get_dumpit, | |
9293 | .internal_flags = DEVLINK_NL_FLAG_NEED_LINECARD, | |
9294 | /* can be retrieved by unprivileged users */ | |
9295 | }, | |
fcdc8ce2 JP |
9296 | { |
9297 | .cmd = DEVLINK_CMD_LINECARD_SET, | |
9298 | .doit = devlink_nl_cmd_linecard_set_doit, | |
9299 | .flags = GENL_ADMIN_PERM, | |
9300 | .internal_flags = DEVLINK_NL_FLAG_NEED_LINECARD, | |
9301 | }, | |
bf797471 JP |
9302 | { |
9303 | .cmd = DEVLINK_CMD_SB_GET, | |
ef6243ac | 9304 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bf797471 JP |
9305 | .doit = devlink_nl_cmd_sb_get_doit, |
9306 | .dumpit = devlink_nl_cmd_sb_get_dumpit, | |
bf797471 JP |
9307 | /* can be retrieved by unprivileged users */ |
9308 | }, | |
9309 | { | |
9310 | .cmd = DEVLINK_CMD_SB_POOL_GET, | |
ef6243ac | 9311 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bf797471 JP |
9312 | .doit = devlink_nl_cmd_sb_pool_get_doit, |
9313 | .dumpit = devlink_nl_cmd_sb_pool_get_dumpit, | |
bf797471 JP |
9314 | /* can be retrieved by unprivileged users */ |
9315 | }, | |
9316 | { | |
9317 | .cmd = DEVLINK_CMD_SB_POOL_SET, | |
ef6243ac | 9318 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bf797471 | 9319 | .doit = devlink_nl_cmd_sb_pool_set_doit, |
bf797471 | 9320 | .flags = GENL_ADMIN_PERM, |
bf797471 JP |
9321 | }, |
9322 | { | |
9323 | .cmd = DEVLINK_CMD_SB_PORT_POOL_GET, | |
ef6243ac | 9324 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bf797471 JP |
9325 | .doit = devlink_nl_cmd_sb_port_pool_get_doit, |
9326 | .dumpit = devlink_nl_cmd_sb_port_pool_get_dumpit, | |
637989b5 | 9327 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, |
bf797471 JP |
9328 | /* can be retrieved by unprivileged users */ |
9329 | }, | |
9330 | { | |
9331 | .cmd = DEVLINK_CMD_SB_PORT_POOL_SET, | |
ef6243ac | 9332 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bf797471 | 9333 | .doit = devlink_nl_cmd_sb_port_pool_set_doit, |
bf797471 | 9334 | .flags = GENL_ADMIN_PERM, |
637989b5 | 9335 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, |
bf797471 JP |
9336 | }, |
9337 | { | |
9338 | .cmd = DEVLINK_CMD_SB_TC_POOL_BIND_GET, | |
ef6243ac | 9339 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bf797471 JP |
9340 | .doit = devlink_nl_cmd_sb_tc_pool_bind_get_doit, |
9341 | .dumpit = devlink_nl_cmd_sb_tc_pool_bind_get_dumpit, | |
637989b5 | 9342 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, |
bf797471 JP |
9343 | /* can be retrieved by unprivileged users */ |
9344 | }, | |
9345 | { | |
9346 | .cmd = DEVLINK_CMD_SB_TC_POOL_BIND_SET, | |
ef6243ac | 9347 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bf797471 | 9348 | .doit = devlink_nl_cmd_sb_tc_pool_bind_set_doit, |
bf797471 | 9349 | .flags = GENL_ADMIN_PERM, |
637989b5 | 9350 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, |
bf797471 | 9351 | }, |
df38dafd JP |
9352 | { |
9353 | .cmd = DEVLINK_CMD_SB_OCC_SNAPSHOT, | |
ef6243ac | 9354 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
df38dafd | 9355 | .doit = devlink_nl_cmd_sb_occ_snapshot_doit, |
df38dafd | 9356 | .flags = GENL_ADMIN_PERM, |
df38dafd JP |
9357 | }, |
9358 | { | |
9359 | .cmd = DEVLINK_CMD_SB_OCC_MAX_CLEAR, | |
ef6243ac | 9360 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
df38dafd | 9361 | .doit = devlink_nl_cmd_sb_occ_max_clear_doit, |
df38dafd | 9362 | .flags = GENL_ADMIN_PERM, |
df38dafd | 9363 | }, |
08f4b591 | 9364 | { |
adf200f3 | 9365 | .cmd = DEVLINK_CMD_ESWITCH_GET, |
ef6243ac | 9366 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
adf200f3 | 9367 | .doit = devlink_nl_cmd_eswitch_get_doit, |
08f4b591 | 9368 | .flags = GENL_ADMIN_PERM, |
08f4b591 OG |
9369 | }, |
9370 | { | |
adf200f3 | 9371 | .cmd = DEVLINK_CMD_ESWITCH_SET, |
ef6243ac | 9372 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
adf200f3 | 9373 | .doit = devlink_nl_cmd_eswitch_set_doit, |
08f4b591 | 9374 | .flags = GENL_ADMIN_PERM, |
08f4b591 | 9375 | }, |
1555d204 AS |
9376 | { |
9377 | .cmd = DEVLINK_CMD_DPIPE_TABLE_GET, | |
ef6243ac | 9378 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
1555d204 | 9379 | .doit = devlink_nl_cmd_dpipe_table_get, |
67ae686b | 9380 | /* can be retrieved by unprivileged users */ |
1555d204 AS |
9381 | }, |
9382 | { | |
9383 | .cmd = DEVLINK_CMD_DPIPE_ENTRIES_GET, | |
ef6243ac | 9384 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
1555d204 | 9385 | .doit = devlink_nl_cmd_dpipe_entries_get, |
67ae686b | 9386 | /* can be retrieved by unprivileged users */ |
1555d204 AS |
9387 | }, |
9388 | { | |
9389 | .cmd = DEVLINK_CMD_DPIPE_HEADERS_GET, | |
ef6243ac | 9390 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
1555d204 | 9391 | .doit = devlink_nl_cmd_dpipe_headers_get, |
67ae686b | 9392 | /* can be retrieved by unprivileged users */ |
1555d204 AS |
9393 | }, |
9394 | { | |
9395 | .cmd = DEVLINK_CMD_DPIPE_TABLE_COUNTERS_SET, | |
ef6243ac | 9396 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
1555d204 | 9397 | .doit = devlink_nl_cmd_dpipe_table_counters_set, |
1555d204 | 9398 | .flags = GENL_ADMIN_PERM, |
1555d204 | 9399 | }, |
d9f9b9a4 AS |
9400 | { |
9401 | .cmd = DEVLINK_CMD_RESOURCE_SET, | |
ef6243ac | 9402 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
d9f9b9a4 | 9403 | .doit = devlink_nl_cmd_resource_set, |
d9f9b9a4 | 9404 | .flags = GENL_ADMIN_PERM, |
d9f9b9a4 AS |
9405 | }, |
9406 | { | |
9407 | .cmd = DEVLINK_CMD_RESOURCE_DUMP, | |
ef6243ac | 9408 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
d9f9b9a4 | 9409 | .doit = devlink_nl_cmd_resource_dump, |
67ae686b | 9410 | /* can be retrieved by unprivileged users */ |
d9f9b9a4 | 9411 | }, |
2d8dc5bb AS |
9412 | { |
9413 | .cmd = DEVLINK_CMD_RELOAD, | |
ef6243ac | 9414 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
2d8dc5bb | 9415 | .doit = devlink_nl_cmd_reload, |
2d8dc5bb | 9416 | .flags = GENL_ADMIN_PERM, |
637989b5 | 9417 | .internal_flags = DEVLINK_NL_FLAG_NO_LOCK, |
2d8dc5bb | 9418 | }, |
45f05def MS |
9419 | { |
9420 | .cmd = DEVLINK_CMD_PARAM_GET, | |
ef6243ac | 9421 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
45f05def MS |
9422 | .doit = devlink_nl_cmd_param_get_doit, |
9423 | .dumpit = devlink_nl_cmd_param_get_dumpit, | |
45f05def MS |
9424 | /* can be retrieved by unprivileged users */ |
9425 | }, | |
e3b7ca18 MS |
9426 | { |
9427 | .cmd = DEVLINK_CMD_PARAM_SET, | |
ef6243ac | 9428 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
e3b7ca18 | 9429 | .doit = devlink_nl_cmd_param_set_doit, |
e3b7ca18 | 9430 | .flags = GENL_ADMIN_PERM, |
e3b7ca18 | 9431 | }, |
f4601dee VV |
9432 | { |
9433 | .cmd = DEVLINK_CMD_PORT_PARAM_GET, | |
ef6243ac | 9434 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
f4601dee VV |
9435 | .doit = devlink_nl_cmd_port_param_get_doit, |
9436 | .dumpit = devlink_nl_cmd_port_param_get_dumpit, | |
f4601dee VV |
9437 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, |
9438 | /* can be retrieved by unprivileged users */ | |
9439 | }, | |
9c54873b VV |
9440 | { |
9441 | .cmd = DEVLINK_CMD_PORT_PARAM_SET, | |
ef6243ac | 9442 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
9c54873b | 9443 | .doit = devlink_nl_cmd_port_param_set_doit, |
9c54873b VV |
9444 | .flags = GENL_ADMIN_PERM, |
9445 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, | |
9446 | }, | |
d8db7ea5 AV |
9447 | { |
9448 | .cmd = DEVLINK_CMD_REGION_GET, | |
ef6243ac | 9449 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
d8db7ea5 AV |
9450 | .doit = devlink_nl_cmd_region_get_doit, |
9451 | .dumpit = devlink_nl_cmd_region_get_dumpit, | |
d8db7ea5 | 9452 | .flags = GENL_ADMIN_PERM, |
d8db7ea5 | 9453 | }, |
b9a17abf JK |
9454 | { |
9455 | .cmd = DEVLINK_CMD_REGION_NEW, | |
9456 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, | |
9457 | .doit = devlink_nl_cmd_region_new, | |
9458 | .flags = GENL_ADMIN_PERM, | |
b9a17abf | 9459 | }, |
866319bb AV |
9460 | { |
9461 | .cmd = DEVLINK_CMD_REGION_DEL, | |
ef6243ac | 9462 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
866319bb | 9463 | .doit = devlink_nl_cmd_region_del, |
866319bb | 9464 | .flags = GENL_ADMIN_PERM, |
866319bb | 9465 | }, |
4e54795a AV |
9466 | { |
9467 | .cmd = DEVLINK_CMD_REGION_READ, | |
ee85da53 JP |
9468 | .validate = GENL_DONT_VALIDATE_STRICT | |
9469 | GENL_DONT_VALIDATE_DUMP_STRICT, | |
4e54795a | 9470 | .dumpit = devlink_nl_cmd_region_read_dumpit, |
4e54795a | 9471 | .flags = GENL_ADMIN_PERM, |
4e54795a | 9472 | }, |
f9cf2288 JK |
9473 | { |
9474 | .cmd = DEVLINK_CMD_INFO_GET, | |
ef6243ac | 9475 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
f9cf2288 JK |
9476 | .doit = devlink_nl_cmd_info_get_doit, |
9477 | .dumpit = devlink_nl_cmd_info_get_dumpit, | |
f9cf2288 JK |
9478 | /* can be retrieved by unprivileged users */ |
9479 | }, | |
7afe335a EBE |
9480 | { |
9481 | .cmd = DEVLINK_CMD_HEALTH_REPORTER_GET, | |
ef6243ac | 9482 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
7afe335a EBE |
9483 | .doit = devlink_nl_cmd_health_reporter_get_doit, |
9484 | .dumpit = devlink_nl_cmd_health_reporter_get_dumpit, | |
c90005b5 | 9485 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT, |
7afe335a EBE |
9486 | /* can be retrieved by unprivileged users */ |
9487 | }, | |
a1e55ec0 EBE |
9488 | { |
9489 | .cmd = DEVLINK_CMD_HEALTH_REPORTER_SET, | |
ef6243ac | 9490 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
a1e55ec0 | 9491 | .doit = devlink_nl_cmd_health_reporter_set_doit, |
a1e55ec0 | 9492 | .flags = GENL_ADMIN_PERM, |
c90005b5 | 9493 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT, |
a1e55ec0 | 9494 | }, |
20a0943a EBE |
9495 | { |
9496 | .cmd = DEVLINK_CMD_HEALTH_REPORTER_RECOVER, | |
ef6243ac | 9497 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
20a0943a | 9498 | .doit = devlink_nl_cmd_health_reporter_recover_doit, |
20a0943a | 9499 | .flags = GENL_ADMIN_PERM, |
c90005b5 | 9500 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT, |
20a0943a | 9501 | }, |
fca42a27 EBE |
9502 | { |
9503 | .cmd = DEVLINK_CMD_HEALTH_REPORTER_DIAGNOSE, | |
ef6243ac | 9504 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
fca42a27 | 9505 | .doit = devlink_nl_cmd_health_reporter_diagnose_doit, |
fca42a27 | 9506 | .flags = GENL_ADMIN_PERM, |
c90005b5 | 9507 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT, |
fca42a27 | 9508 | }, |
35455e23 EBE |
9509 | { |
9510 | .cmd = DEVLINK_CMD_HEALTH_REPORTER_DUMP_GET, | |
82a843de JP |
9511 | .validate = GENL_DONT_VALIDATE_STRICT | |
9512 | GENL_DONT_VALIDATE_DUMP_STRICT, | |
e44ef4e4 | 9513 | .dumpit = devlink_nl_cmd_health_reporter_dump_get_dumpit, |
35455e23 | 9514 | .flags = GENL_ADMIN_PERM, |
35455e23 EBE |
9515 | }, |
9516 | { | |
9517 | .cmd = DEVLINK_CMD_HEALTH_REPORTER_DUMP_CLEAR, | |
ef6243ac | 9518 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
35455e23 | 9519 | .doit = devlink_nl_cmd_health_reporter_dump_clear_doit, |
35455e23 | 9520 | .flags = GENL_ADMIN_PERM, |
c90005b5 | 9521 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT, |
35455e23 | 9522 | }, |
e2ce94dc JP |
9523 | { |
9524 | .cmd = DEVLINK_CMD_HEALTH_REPORTER_TEST, | |
9525 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, | |
9526 | .doit = devlink_nl_cmd_health_reporter_test_doit, | |
9527 | .flags = GENL_ADMIN_PERM, | |
c90005b5 | 9528 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT, |
e2ce94dc | 9529 | }, |
76726ccb JK |
9530 | { |
9531 | .cmd = DEVLINK_CMD_FLASH_UPDATE, | |
ef6243ac | 9532 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
76726ccb | 9533 | .doit = devlink_nl_cmd_flash_update, |
76726ccb | 9534 | .flags = GENL_ADMIN_PERM, |
76726ccb | 9535 | }, |
0f420b6c IS |
9536 | { |
9537 | .cmd = DEVLINK_CMD_TRAP_GET, | |
9538 | .doit = devlink_nl_cmd_trap_get_doit, | |
9539 | .dumpit = devlink_nl_cmd_trap_get_dumpit, | |
0f420b6c IS |
9540 | /* can be retrieved by unprivileged users */ |
9541 | }, | |
9542 | { | |
9543 | .cmd = DEVLINK_CMD_TRAP_SET, | |
9544 | .doit = devlink_nl_cmd_trap_set_doit, | |
9545 | .flags = GENL_ADMIN_PERM, | |
0f420b6c IS |
9546 | }, |
9547 | { | |
9548 | .cmd = DEVLINK_CMD_TRAP_GROUP_GET, | |
9549 | .doit = devlink_nl_cmd_trap_group_get_doit, | |
9550 | .dumpit = devlink_nl_cmd_trap_group_get_dumpit, | |
0f420b6c IS |
9551 | /* can be retrieved by unprivileged users */ |
9552 | }, | |
9553 | { | |
9554 | .cmd = DEVLINK_CMD_TRAP_GROUP_SET, | |
9555 | .doit = devlink_nl_cmd_trap_group_set_doit, | |
9556 | .flags = GENL_ADMIN_PERM, | |
0f420b6c | 9557 | }, |
1e8c6619 IS |
9558 | { |
9559 | .cmd = DEVLINK_CMD_TRAP_POLICER_GET, | |
9560 | .doit = devlink_nl_cmd_trap_policer_get_doit, | |
9561 | .dumpit = devlink_nl_cmd_trap_policer_get_dumpit, | |
1e8c6619 IS |
9562 | /* can be retrieved by unprivileged users */ |
9563 | }, | |
9564 | { | |
9565 | .cmd = DEVLINK_CMD_TRAP_POLICER_SET, | |
9566 | .doit = devlink_nl_cmd_trap_policer_set_doit, | |
9567 | .flags = GENL_ADMIN_PERM, | |
1e8c6619 | 9568 | }, |
08f588fa VG |
9569 | { |
9570 | .cmd = DEVLINK_CMD_SELFTESTS_GET, | |
9571 | .doit = devlink_nl_cmd_selftests_get_doit, | |
9572 | .dumpit = devlink_nl_cmd_selftests_get_dumpit | |
9573 | /* can be retrieved by unprivileged users */ | |
9574 | }, | |
9575 | { | |
9576 | .cmd = DEVLINK_CMD_SELFTESTS_RUN, | |
9577 | .doit = devlink_nl_cmd_selftests_run, | |
9578 | .flags = GENL_ADMIN_PERM, | |
9579 | }, | |
bfcd3a46 JP |
9580 | }; |
9581 | ||
56989f6d | 9582 | static struct genl_family devlink_nl_family __ro_after_init = { |
489111e5 JB |
9583 | .name = DEVLINK_GENL_NAME, |
9584 | .version = DEVLINK_GENL_VERSION, | |
9585 | .maxattr = DEVLINK_ATTR_MAX, | |
3b0f31f2 | 9586 | .policy = devlink_nl_policy, |
489111e5 JB |
9587 | .netnsok = true, |
9588 | .pre_doit = devlink_nl_pre_doit, | |
9589 | .post_doit = devlink_nl_post_doit, | |
9590 | .module = THIS_MODULE, | |
66a9b928 JK |
9591 | .small_ops = devlink_nl_ops, |
9592 | .n_small_ops = ARRAY_SIZE(devlink_nl_ops), | |
489111e5 JB |
9593 | .mcgrps = devlink_nl_mcgrps, |
9594 | .n_mcgrps = ARRAY_SIZE(devlink_nl_mcgrps), | |
9595 | }; | |
9596 | ||
ccdf0721 MS |
9597 | static bool devlink_reload_actions_valid(const struct devlink_ops *ops) |
9598 | { | |
dc64cc7c MS |
9599 | const struct devlink_reload_combination *comb; |
9600 | int i; | |
9601 | ||
ccdf0721 MS |
9602 | if (!devlink_reload_supported(ops)) { |
9603 | if (WARN_ON(ops->reload_actions)) | |
9604 | return false; | |
9605 | return true; | |
9606 | } | |
9607 | ||
9608 | if (WARN_ON(!ops->reload_actions || | |
9609 | ops->reload_actions & BIT(DEVLINK_RELOAD_ACTION_UNSPEC) || | |
9610 | ops->reload_actions >= BIT(__DEVLINK_RELOAD_ACTION_MAX))) | |
9611 | return false; | |
dc64cc7c MS |
9612 | |
9613 | if (WARN_ON(ops->reload_limits & BIT(DEVLINK_RELOAD_LIMIT_UNSPEC) || | |
9614 | ops->reload_limits >= BIT(__DEVLINK_RELOAD_LIMIT_MAX))) | |
9615 | return false; | |
9616 | ||
9617 | for (i = 0; i < ARRAY_SIZE(devlink_reload_invalid_combinations); i++) { | |
9618 | comb = &devlink_reload_invalid_combinations[i]; | |
9619 | if (ops->reload_actions == BIT(comb->action) && | |
9620 | ops->reload_limits == BIT(comb->limit)) | |
9621 | return false; | |
9622 | } | |
ccdf0721 MS |
9623 | return true; |
9624 | } | |
9625 | ||
bd032e35 LR |
9626 | /** |
9627 | * devlink_set_features - Set devlink supported features | |
9628 | * | |
9629 | * @devlink: devlink | |
9630 | * @features: devlink support features | |
9631 | * | |
9632 | * This interface allows us to set reload ops separatelly from | |
9633 | * the devlink_alloc. | |
9634 | */ | |
9635 | void devlink_set_features(struct devlink *devlink, u64 features) | |
9636 | { | |
9637 | ASSERT_DEVLINK_NOT_REGISTERED(devlink); | |
9638 | ||
9639 | WARN_ON(features & DEVLINK_F_RELOAD && | |
9640 | !devlink_reload_supported(devlink->ops)); | |
9641 | devlink->features = features; | |
9642 | } | |
9643 | EXPORT_SYMBOL_GPL(devlink_set_features); | |
9644 | ||
bfcd3a46 | 9645 | /** |
26713455 LR |
9646 | * devlink_alloc_ns - Allocate new devlink instance resources |
9647 | * in specific namespace | |
bfcd3a46 JP |
9648 | * |
9649 | * @ops: ops | |
9650 | * @priv_size: size of user private data | |
26713455 | 9651 | * @net: net namespace |
919d13a7 | 9652 | * @dev: parent device |
bfcd3a46 JP |
9653 | * |
9654 | * Allocate new devlink instance resources, including devlink index | |
9655 | * and name. | |
9656 | */ | |
26713455 | 9657 | struct devlink *devlink_alloc_ns(const struct devlink_ops *ops, |
919d13a7 LR |
9658 | size_t priv_size, struct net *net, |
9659 | struct device *dev) | |
bfcd3a46 JP |
9660 | { |
9661 | struct devlink *devlink; | |
11a861d7 LR |
9662 | static u32 last_id; |
9663 | int ret; | |
bfcd3a46 | 9664 | |
919d13a7 | 9665 | WARN_ON(!ops || !dev); |
ccdf0721 MS |
9666 | if (!devlink_reload_actions_valid(ops)) |
9667 | return NULL; | |
9668 | ||
bfcd3a46 JP |
9669 | devlink = kzalloc(sizeof(*devlink) + priv_size, GFP_KERNEL); |
9670 | if (!devlink) | |
9671 | return NULL; | |
919d13a7 | 9672 | |
11a861d7 LR |
9673 | ret = xa_alloc_cyclic(&devlinks, &devlink->index, devlink, xa_limit_31b, |
9674 | &last_id, GFP_KERNEL); | |
9675 | if (ret < 0) { | |
9676 | kfree(devlink); | |
9677 | return NULL; | |
9678 | } | |
9679 | ||
919d13a7 | 9680 | devlink->dev = dev; |
bfcd3a46 | 9681 | devlink->ops = ops; |
12102436 | 9682 | xa_init_flags(&devlink->snapshot_ids, XA_FLAGS_ALLOC); |
26713455 | 9683 | write_pnet(&devlink->_net, net); |
bfcd3a46 | 9684 | INIT_LIST_HEAD(&devlink->port_list); |
4677efc4 | 9685 | INIT_LIST_HEAD(&devlink->rate_list); |
c246f9b5 | 9686 | INIT_LIST_HEAD(&devlink->linecard_list); |
bf797471 | 9687 | INIT_LIST_HEAD(&devlink->sb_list); |
1555d204 | 9688 | INIT_LIST_HEAD_RCU(&devlink->dpipe_table_list); |
d9f9b9a4 | 9689 | INIT_LIST_HEAD(&devlink->resource_list); |
eabaef18 | 9690 | INIT_LIST_HEAD(&devlink->param_list); |
b16ebe92 | 9691 | INIT_LIST_HEAD(&devlink->region_list); |
a0bdcc59 | 9692 | INIT_LIST_HEAD(&devlink->reporter_list); |
0f420b6c IS |
9693 | INIT_LIST_HEAD(&devlink->trap_list); |
9694 | INIT_LIST_HEAD(&devlink->trap_group_list); | |
1e8c6619 | 9695 | INIT_LIST_HEAD(&devlink->trap_policer_list); |
e26fde2f | 9696 | lockdep_register_key(&devlink->lock_key); |
2406e7e5 | 9697 | mutex_init(&devlink->lock); |
e26fde2f | 9698 | lockdep_set_class(&devlink->lock, &devlink->lock_key); |
b587bdaf | 9699 | mutex_init(&devlink->reporters_lock); |
c246f9b5 | 9700 | mutex_init(&devlink->linecards_lock); |
437ebfd9 LR |
9701 | refcount_set(&devlink->refcount, 1); |
9702 | init_completion(&devlink->comp); | |
9703 | ||
bfcd3a46 JP |
9704 | return devlink; |
9705 | } | |
26713455 | 9706 | EXPORT_SYMBOL_GPL(devlink_alloc_ns); |
bfcd3a46 | 9707 | |
cf530217 LR |
9708 | static void |
9709 | devlink_trap_policer_notify(struct devlink *devlink, | |
9710 | const struct devlink_trap_policer_item *policer_item, | |
9711 | enum devlink_command cmd); | |
9712 | static void | |
9713 | devlink_trap_group_notify(struct devlink *devlink, | |
9714 | const struct devlink_trap_group_item *group_item, | |
9715 | enum devlink_command cmd); | |
9716 | static void devlink_trap_notify(struct devlink *devlink, | |
9717 | const struct devlink_trap_item *trap_item, | |
9718 | enum devlink_command cmd); | |
9719 | ||
9720 | static void devlink_notify_register(struct devlink *devlink) | |
9721 | { | |
9722 | struct devlink_trap_policer_item *policer_item; | |
9723 | struct devlink_trap_group_item *group_item; | |
99ad92ef | 9724 | struct devlink_param_item *param_item; |
cf530217 LR |
9725 | struct devlink_trap_item *trap_item; |
9726 | struct devlink_port *devlink_port; | |
c246f9b5 | 9727 | struct devlink_linecard *linecard; |
ef91abfb LR |
9728 | struct devlink_rate *rate_node; |
9729 | struct devlink_region *region; | |
cf530217 LR |
9730 | |
9731 | devlink_notify(devlink, DEVLINK_CMD_NEW); | |
c246f9b5 JP |
9732 | list_for_each_entry(linecard, &devlink->linecard_list, list) |
9733 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
9734 | ||
cf530217 LR |
9735 | list_for_each_entry(devlink_port, &devlink->port_list, list) |
9736 | devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_NEW); | |
9737 | ||
9738 | list_for_each_entry(policer_item, &devlink->trap_policer_list, list) | |
9739 | devlink_trap_policer_notify(devlink, policer_item, | |
9740 | DEVLINK_CMD_TRAP_POLICER_NEW); | |
9741 | ||
9742 | list_for_each_entry(group_item, &devlink->trap_group_list, list) | |
9743 | devlink_trap_group_notify(devlink, group_item, | |
9744 | DEVLINK_CMD_TRAP_GROUP_NEW); | |
9745 | ||
9746 | list_for_each_entry(trap_item, &devlink->trap_list, list) | |
9747 | devlink_trap_notify(devlink, trap_item, DEVLINK_CMD_TRAP_NEW); | |
9748 | ||
ef91abfb LR |
9749 | list_for_each_entry(rate_node, &devlink->rate_list, list) |
9750 | devlink_rate_notify(rate_node, DEVLINK_CMD_RATE_NEW); | |
9751 | ||
9752 | list_for_each_entry(region, &devlink->region_list, list) | |
9753 | devlink_nl_region_notify(region, NULL, DEVLINK_CMD_REGION_NEW); | |
9754 | ||
99ad92ef LR |
9755 | list_for_each_entry(param_item, &devlink->param_list, list) |
9756 | devlink_param_notify(devlink, 0, param_item, | |
9757 | DEVLINK_CMD_PARAM_NEW); | |
cf530217 LR |
9758 | } |
9759 | ||
9760 | static void devlink_notify_unregister(struct devlink *devlink) | |
9761 | { | |
9762 | struct devlink_trap_policer_item *policer_item; | |
9763 | struct devlink_trap_group_item *group_item; | |
99ad92ef | 9764 | struct devlink_param_item *param_item; |
cf530217 LR |
9765 | struct devlink_trap_item *trap_item; |
9766 | struct devlink_port *devlink_port; | |
ef91abfb LR |
9767 | struct devlink_rate *rate_node; |
9768 | struct devlink_region *region; | |
cf530217 | 9769 | |
99ad92ef LR |
9770 | list_for_each_entry_reverse(param_item, &devlink->param_list, list) |
9771 | devlink_param_notify(devlink, 0, param_item, | |
9772 | DEVLINK_CMD_PARAM_DEL); | |
cf530217 | 9773 | |
ef91abfb LR |
9774 | list_for_each_entry_reverse(region, &devlink->region_list, list) |
9775 | devlink_nl_region_notify(region, NULL, DEVLINK_CMD_REGION_DEL); | |
9776 | ||
9777 | list_for_each_entry_reverse(rate_node, &devlink->rate_list, list) | |
9778 | devlink_rate_notify(rate_node, DEVLINK_CMD_RATE_DEL); | |
9779 | ||
cf530217 LR |
9780 | list_for_each_entry_reverse(trap_item, &devlink->trap_list, list) |
9781 | devlink_trap_notify(devlink, trap_item, DEVLINK_CMD_TRAP_DEL); | |
9782 | ||
9783 | list_for_each_entry_reverse(group_item, &devlink->trap_group_list, list) | |
9784 | devlink_trap_group_notify(devlink, group_item, | |
9785 | DEVLINK_CMD_TRAP_GROUP_DEL); | |
9786 | list_for_each_entry_reverse(policer_item, &devlink->trap_policer_list, | |
9787 | list) | |
9788 | devlink_trap_policer_notify(devlink, policer_item, | |
9789 | DEVLINK_CMD_TRAP_POLICER_DEL); | |
9790 | ||
9791 | list_for_each_entry_reverse(devlink_port, &devlink->port_list, list) | |
9792 | devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_DEL); | |
9793 | devlink_notify(devlink, DEVLINK_CMD_DEL); | |
9794 | } | |
9795 | ||
bfcd3a46 JP |
9796 | /** |
9797 | * devlink_register - Register devlink instance | |
9798 | * | |
9799 | * @devlink: devlink | |
9800 | */ | |
db4278c5 | 9801 | void devlink_register(struct devlink *devlink) |
bfcd3a46 | 9802 | { |
b88f7b12 LR |
9803 | ASSERT_DEVLINK_NOT_REGISTERED(devlink); |
9804 | /* Make sure that we are in .probe() routine */ | |
b88f7b12 | 9805 | |
11a861d7 | 9806 | xa_set_mark(&devlinks, devlink->index, DEVLINK_REGISTERED); |
cf530217 | 9807 | devlink_notify_register(devlink); |
bfcd3a46 JP |
9808 | } |
9809 | EXPORT_SYMBOL_GPL(devlink_register); | |
9810 | ||
9811 | /** | |
9812 | * devlink_unregister - Unregister devlink instance | |
9813 | * | |
9814 | * @devlink: devlink | |
9815 | */ | |
9816 | void devlink_unregister(struct devlink *devlink) | |
9817 | { | |
b88f7b12 LR |
9818 | ASSERT_DEVLINK_REGISTERED(devlink); |
9819 | /* Make sure that we are in .remove() routine */ | |
b88f7b12 | 9820 | |
c2368b19 | 9821 | xa_set_mark(&devlinks, devlink->index, DEVLINK_UNREGISTERING); |
437ebfd9 LR |
9822 | devlink_put(devlink); |
9823 | wait_for_completion(&devlink->comp); | |
9824 | ||
cf530217 | 9825 | devlink_notify_unregister(devlink); |
11a861d7 | 9826 | xa_clear_mark(&devlinks, devlink->index, DEVLINK_REGISTERED); |
c2368b19 | 9827 | xa_clear_mark(&devlinks, devlink->index, DEVLINK_UNREGISTERING); |
bfcd3a46 JP |
9828 | } |
9829 | EXPORT_SYMBOL_GPL(devlink_unregister); | |
9830 | ||
9831 | /** | |
9832 | * devlink_free - Free devlink instance resources | |
9833 | * | |
9834 | * @devlink: devlink | |
9835 | */ | |
9836 | void devlink_free(struct devlink *devlink) | |
9837 | { | |
b88f7b12 LR |
9838 | ASSERT_DEVLINK_NOT_REGISTERED(devlink); |
9839 | ||
c246f9b5 | 9840 | mutex_destroy(&devlink->linecards_lock); |
b587bdaf | 9841 | mutex_destroy(&devlink->reporters_lock); |
375cf8c6 | 9842 | mutex_destroy(&devlink->lock); |
e26fde2f | 9843 | lockdep_unregister_key(&devlink->lock_key); |
1e8c6619 | 9844 | WARN_ON(!list_empty(&devlink->trap_policer_list)); |
0f420b6c IS |
9845 | WARN_ON(!list_empty(&devlink->trap_group_list)); |
9846 | WARN_ON(!list_empty(&devlink->trap_list)); | |
b904aada PP |
9847 | WARN_ON(!list_empty(&devlink->reporter_list)); |
9848 | WARN_ON(!list_empty(&devlink->region_list)); | |
9849 | WARN_ON(!list_empty(&devlink->param_list)); | |
9850 | WARN_ON(!list_empty(&devlink->resource_list)); | |
9851 | WARN_ON(!list_empty(&devlink->dpipe_table_list)); | |
9852 | WARN_ON(!list_empty(&devlink->sb_list)); | |
4677efc4 | 9853 | WARN_ON(!list_empty(&devlink->rate_list)); |
c246f9b5 | 9854 | WARN_ON(!list_empty(&devlink->linecard_list)); |
b904aada PP |
9855 | WARN_ON(!list_empty(&devlink->port_list)); |
9856 | ||
12102436 | 9857 | xa_destroy(&devlink->snapshot_ids); |
11a861d7 | 9858 | xa_erase(&devlinks, devlink->index); |
12102436 | 9859 | |
bfcd3a46 JP |
9860 | kfree(devlink); |
9861 | } | |
9862 | EXPORT_SYMBOL_GPL(devlink_free); | |
9863 | ||
136bf27f JP |
9864 | static void devlink_port_type_warn(struct work_struct *work) |
9865 | { | |
9866 | WARN(true, "Type was not set for devlink port."); | |
9867 | } | |
9868 | ||
9869 | static bool devlink_port_type_should_warn(struct devlink_port *devlink_port) | |
9870 | { | |
9871 | /* Ignore CPU and DSA flavours. */ | |
9872 | return devlink_port->attrs.flavour != DEVLINK_PORT_FLAVOUR_CPU && | |
cf116634 AL |
9873 | devlink_port->attrs.flavour != DEVLINK_PORT_FLAVOUR_DSA && |
9874 | devlink_port->attrs.flavour != DEVLINK_PORT_FLAVOUR_UNUSED; | |
136bf27f JP |
9875 | } |
9876 | ||
4c582234 | 9877 | #define DEVLINK_PORT_TYPE_WARN_TIMEOUT (HZ * 3600) |
136bf27f JP |
9878 | |
9879 | static void devlink_port_type_warn_schedule(struct devlink_port *devlink_port) | |
9880 | { | |
9881 | if (!devlink_port_type_should_warn(devlink_port)) | |
9882 | return; | |
9883 | /* Schedule a work to WARN in case driver does not set port | |
9884 | * type within timeout. | |
9885 | */ | |
9886 | schedule_delayed_work(&devlink_port->type_warn_dw, | |
9887 | DEVLINK_PORT_TYPE_WARN_TIMEOUT); | |
9888 | } | |
9889 | ||
9890 | static void devlink_port_type_warn_cancel(struct devlink_port *devlink_port) | |
9891 | { | |
9892 | if (!devlink_port_type_should_warn(devlink_port)) | |
9893 | return; | |
9894 | cancel_delayed_work_sync(&devlink_port->type_warn_dw); | |
9895 | } | |
9896 | ||
1abfb265 JP |
9897 | /** |
9898 | * devl_port_register() - Register devlink port | |
9899 | * | |
9900 | * @devlink: devlink | |
9901 | * @devlink_port: devlink port | |
9902 | * @port_index: driver-specific numerical identifier of the port | |
9903 | * | |
9904 | * Register devlink port with provided port index. User can use | |
9905 | * any indexing, even hw-related one. devlink_port structure | |
9906 | * is convenient to be embedded inside user driver private structure. | |
9907 | * Note that the caller should take care of zeroing the devlink_port | |
9908 | * structure. | |
9909 | */ | |
2cb7b489 JK |
9910 | int devl_port_register(struct devlink *devlink, |
9911 | struct devlink_port *devlink_port, | |
9912 | unsigned int port_index) | |
9913 | { | |
7715023a | 9914 | devl_assert_locked(devlink); |
2cb7b489 JK |
9915 | |
9916 | if (devlink_port_index_exists(devlink, port_index)) | |
9917 | return -EEXIST; | |
9918 | ||
9919 | WARN_ON(devlink_port->devlink); | |
9920 | devlink_port->devlink = devlink; | |
9921 | devlink_port->index = port_index; | |
9922 | spin_lock_init(&devlink_port->type_lock); | |
9923 | INIT_LIST_HEAD(&devlink_port->reporter_list); | |
9924 | mutex_init(&devlink_port->reporters_lock); | |
9925 | list_add_tail(&devlink_port->list, &devlink->port_list); | |
9926 | INIT_LIST_HEAD(&devlink_port->param_list); | |
9927 | INIT_LIST_HEAD(&devlink_port->region_list); | |
9928 | ||
9929 | INIT_DELAYED_WORK(&devlink_port->type_warn_dw, &devlink_port_type_warn); | |
9930 | devlink_port_type_warn_schedule(devlink_port); | |
9931 | devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_NEW); | |
9932 | return 0; | |
9933 | } | |
9934 | EXPORT_SYMBOL_GPL(devl_port_register); | |
9935 | ||
bfcd3a46 JP |
9936 | /** |
9937 | * devlink_port_register - Register devlink port | |
9938 | * | |
9939 | * @devlink: devlink | |
9940 | * @devlink_port: devlink port | |
eeaadd82 | 9941 | * @port_index: driver-specific numerical identifier of the port |
bfcd3a46 JP |
9942 | * |
9943 | * Register devlink port with provided port index. User can use | |
9944 | * any indexing, even hw-related one. devlink_port structure | |
9945 | * is convenient to be embedded inside user driver private structure. | |
9946 | * Note that the caller should take care of zeroing the devlink_port | |
9947 | * structure. | |
1abfb265 JP |
9948 | * |
9949 | * Context: Takes and release devlink->lock <mutex>. | |
bfcd3a46 JP |
9950 | */ |
9951 | int devlink_port_register(struct devlink *devlink, | |
9952 | struct devlink_port *devlink_port, | |
9953 | unsigned int port_index) | |
9954 | { | |
2cb7b489 | 9955 | int err; |
d7907a2b | 9956 | |
7715023a | 9957 | devl_lock(devlink); |
2cb7b489 | 9958 | err = devl_port_register(devlink, devlink_port, port_index); |
7715023a | 9959 | devl_unlock(devlink); |
2cb7b489 | 9960 | return err; |
bfcd3a46 JP |
9961 | } |
9962 | EXPORT_SYMBOL_GPL(devlink_port_register); | |
9963 | ||
1abfb265 JP |
9964 | /** |
9965 | * devl_port_unregister() - Unregister devlink port | |
9966 | * | |
9967 | * @devlink_port: devlink port | |
9968 | */ | |
2cb7b489 JK |
9969 | void devl_port_unregister(struct devlink_port *devlink_port) |
9970 | { | |
9971 | lockdep_assert_held(&devlink_port->devlink->lock); | |
9972 | ||
9973 | devlink_port_type_warn_cancel(devlink_port); | |
9974 | devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_DEL); | |
9975 | list_del(&devlink_port->list); | |
9976 | WARN_ON(!list_empty(&devlink_port->reporter_list)); | |
9977 | WARN_ON(!list_empty(&devlink_port->region_list)); | |
9978 | mutex_destroy(&devlink_port->reporters_lock); | |
9979 | } | |
9980 | EXPORT_SYMBOL_GPL(devl_port_unregister); | |
9981 | ||
bfcd3a46 JP |
9982 | /** |
9983 | * devlink_port_unregister - Unregister devlink port | |
9984 | * | |
9985 | * @devlink_port: devlink port | |
1abfb265 JP |
9986 | * |
9987 | * Context: Takes and release devlink->lock <mutex>. | |
bfcd3a46 JP |
9988 | */ |
9989 | void devlink_port_unregister(struct devlink_port *devlink_port) | |
9990 | { | |
2406e7e5 AS |
9991 | struct devlink *devlink = devlink_port->devlink; |
9992 | ||
7715023a | 9993 | devl_lock(devlink); |
2cb7b489 | 9994 | devl_port_unregister(devlink_port); |
7715023a | 9995 | devl_unlock(devlink); |
bfcd3a46 JP |
9996 | } |
9997 | EXPORT_SYMBOL_GPL(devlink_port_unregister); | |
9998 | ||
9999 | static void __devlink_port_type_set(struct devlink_port *devlink_port, | |
10000 | enum devlink_port_type type, | |
10001 | void *type_dev) | |
10002 | { | |
d7907a2b | 10003 | if (WARN_ON(!devlink_port->devlink)) |
2b239e70 | 10004 | return; |
136bf27f | 10005 | devlink_port_type_warn_cancel(devlink_port); |
0f420b6c | 10006 | spin_lock_bh(&devlink_port->type_lock); |
bfcd3a46 JP |
10007 | devlink_port->type = type; |
10008 | devlink_port->type_dev = type_dev; | |
0f420b6c | 10009 | spin_unlock_bh(&devlink_port->type_lock); |
bfcd3a46 JP |
10010 | devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_NEW); |
10011 | } | |
10012 | ||
3ea87ca7 JK |
10013 | static void devlink_port_type_netdev_checks(struct devlink_port *devlink_port, |
10014 | struct net_device *netdev) | |
bfcd3a46 | 10015 | { |
119c0b57 JP |
10016 | const struct net_device_ops *ops = netdev->netdev_ops; |
10017 | ||
746364f2 JP |
10018 | /* If driver registers devlink port, it should set devlink port |
10019 | * attributes accordingly so the compat functions are called | |
10020 | * and the original ops are not used. | |
10021 | */ | |
119c0b57 | 10022 | if (ops->ndo_get_phys_port_name) { |
746364f2 JP |
10023 | /* Some drivers use the same set of ndos for netdevs |
10024 | * that have devlink_port registered and also for | |
10025 | * those who don't. Make sure that ndo_get_phys_port_name | |
10026 | * returns -EOPNOTSUPP here in case it is defined. | |
10027 | * Warn if not. | |
10028 | */ | |
746364f2 JP |
10029 | char name[IFNAMSIZ]; |
10030 | int err; | |
10031 | ||
10032 | err = ops->ndo_get_phys_port_name(netdev, name, sizeof(name)); | |
10033 | WARN_ON(err != -EOPNOTSUPP); | |
10034 | } | |
119c0b57 JP |
10035 | if (ops->ndo_get_port_parent_id) { |
10036 | /* Some drivers use the same set of ndos for netdevs | |
10037 | * that have devlink_port registered and also for | |
10038 | * those who don't. Make sure that ndo_get_port_parent_id | |
10039 | * returns -EOPNOTSUPP here in case it is defined. | |
10040 | * Warn if not. | |
10041 | */ | |
10042 | struct netdev_phys_item_id ppid; | |
10043 | int err; | |
10044 | ||
10045 | err = ops->ndo_get_port_parent_id(netdev, &ppid); | |
10046 | WARN_ON(err != -EOPNOTSUPP); | |
10047 | } | |
3ea87ca7 JK |
10048 | } |
10049 | ||
10050 | /** | |
10051 | * devlink_port_type_eth_set - Set port type to Ethernet | |
10052 | * | |
10053 | * @devlink_port: devlink port | |
10054 | * @netdev: related netdevice | |
10055 | */ | |
10056 | void devlink_port_type_eth_set(struct devlink_port *devlink_port, | |
10057 | struct net_device *netdev) | |
10058 | { | |
10059 | if (netdev) | |
10060 | devlink_port_type_netdev_checks(devlink_port, netdev); | |
10061 | else | |
10062 | dev_warn(devlink_port->devlink->dev, | |
10063 | "devlink port type for port %d set to Ethernet without a software interface reference, device type not supported by the kernel?\n", | |
10064 | devlink_port->index); | |
10065 | ||
773b1f38 | 10066 | __devlink_port_type_set(devlink_port, DEVLINK_PORT_TYPE_ETH, netdev); |
bfcd3a46 JP |
10067 | } |
10068 | EXPORT_SYMBOL_GPL(devlink_port_type_eth_set); | |
10069 | ||
10070 | /** | |
10071 | * devlink_port_type_ib_set - Set port type to InfiniBand | |
10072 | * | |
10073 | * @devlink_port: devlink port | |
10074 | * @ibdev: related IB device | |
10075 | */ | |
10076 | void devlink_port_type_ib_set(struct devlink_port *devlink_port, | |
10077 | struct ib_device *ibdev) | |
10078 | { | |
773b1f38 | 10079 | __devlink_port_type_set(devlink_port, DEVLINK_PORT_TYPE_IB, ibdev); |
bfcd3a46 JP |
10080 | } |
10081 | EXPORT_SYMBOL_GPL(devlink_port_type_ib_set); | |
10082 | ||
10083 | /** | |
10084 | * devlink_port_type_clear - Clear port type | |
10085 | * | |
10086 | * @devlink_port: devlink port | |
10087 | */ | |
10088 | void devlink_port_type_clear(struct devlink_port *devlink_port) | |
10089 | { | |
773b1f38 | 10090 | __devlink_port_type_set(devlink_port, DEVLINK_PORT_TYPE_NOTSET, NULL); |
136bf27f | 10091 | devlink_port_type_warn_schedule(devlink_port); |
bfcd3a46 JP |
10092 | } |
10093 | EXPORT_SYMBOL_GPL(devlink_port_type_clear); | |
10094 | ||
378ef01b | 10095 | static int __devlink_port_attrs_set(struct devlink_port *devlink_port, |
71ad8d55 | 10096 | enum devlink_port_flavour flavour) |
378ef01b PP |
10097 | { |
10098 | struct devlink_port_attrs *attrs = &devlink_port->attrs; | |
10099 | ||
10a429ba | 10100 | devlink_port->attrs_set = true; |
378ef01b | 10101 | attrs->flavour = flavour; |
71ad8d55 | 10102 | if (attrs->switch_id.id_len) { |
46737a19 | 10103 | devlink_port->switch_port = true; |
71ad8d55 DR |
10104 | if (WARN_ON(attrs->switch_id.id_len > MAX_PHYS_ITEM_ID_LEN)) |
10105 | attrs->switch_id.id_len = MAX_PHYS_ITEM_ID_LEN; | |
378ef01b | 10106 | } else { |
46737a19 | 10107 | devlink_port->switch_port = false; |
378ef01b PP |
10108 | } |
10109 | return 0; | |
10110 | } | |
10111 | ||
bfcd3a46 | 10112 | /** |
b9ffcbaf | 10113 | * devlink_port_attrs_set - Set port attributes |
bfcd3a46 JP |
10114 | * |
10115 | * @devlink_port: devlink port | |
71ad8d55 | 10116 | * @attrs: devlink port attrs |
bfcd3a46 | 10117 | */ |
b9ffcbaf | 10118 | void devlink_port_attrs_set(struct devlink_port *devlink_port, |
71ad8d55 | 10119 | struct devlink_port_attrs *attrs) |
bfcd3a46 | 10120 | { |
378ef01b | 10121 | int ret; |
b9ffcbaf | 10122 | |
d7907a2b | 10123 | if (WARN_ON(devlink_port->devlink)) |
9f73bd1c | 10124 | return; |
71ad8d55 DR |
10125 | devlink_port->attrs = *attrs; |
10126 | ret = __devlink_port_attrs_set(devlink_port, attrs->flavour); | |
378ef01b | 10127 | if (ret) |
45b86112 | 10128 | return; |
a0f49b54 | 10129 | WARN_ON(attrs->splittable && attrs->split); |
bfcd3a46 | 10130 | } |
b9ffcbaf | 10131 | EXPORT_SYMBOL_GPL(devlink_port_attrs_set); |
bfcd3a46 | 10132 | |
98fd2d65 PP |
10133 | /** |
10134 | * devlink_port_attrs_pci_pf_set - Set PCI PF port attributes | |
10135 | * | |
10136 | * @devlink_port: devlink port | |
3a2d9588 | 10137 | * @controller: associated controller number for the devlink port instance |
98fd2d65 | 10138 | * @pf: associated PF for the devlink port instance |
05b595e9 | 10139 | * @external: indicates if the port is for an external controller |
98fd2d65 | 10140 | */ |
3a2d9588 PP |
10141 | void devlink_port_attrs_pci_pf_set(struct devlink_port *devlink_port, u32 controller, |
10142 | u16 pf, bool external) | |
98fd2d65 PP |
10143 | { |
10144 | struct devlink_port_attrs *attrs = &devlink_port->attrs; | |
10145 | int ret; | |
10146 | ||
d7907a2b | 10147 | if (WARN_ON(devlink_port->devlink)) |
9f73bd1c | 10148 | return; |
98fd2d65 | 10149 | ret = __devlink_port_attrs_set(devlink_port, |
71ad8d55 | 10150 | DEVLINK_PORT_FLAVOUR_PCI_PF); |
98fd2d65 PP |
10151 | if (ret) |
10152 | return; | |
3a2d9588 | 10153 | attrs->pci_pf.controller = controller; |
98fd2d65 | 10154 | attrs->pci_pf.pf = pf; |
05b595e9 | 10155 | attrs->pci_pf.external = external; |
98fd2d65 PP |
10156 | } |
10157 | EXPORT_SYMBOL_GPL(devlink_port_attrs_pci_pf_set); | |
10158 | ||
e41b6bf3 PP |
10159 | /** |
10160 | * devlink_port_attrs_pci_vf_set - Set PCI VF port attributes | |
10161 | * | |
10162 | * @devlink_port: devlink port | |
3a2d9588 | 10163 | * @controller: associated controller number for the devlink port instance |
e41b6bf3 PP |
10164 | * @pf: associated PF for the devlink port instance |
10165 | * @vf: associated VF of a PF for the devlink port instance | |
05b595e9 | 10166 | * @external: indicates if the port is for an external controller |
e41b6bf3 | 10167 | */ |
3a2d9588 | 10168 | void devlink_port_attrs_pci_vf_set(struct devlink_port *devlink_port, u32 controller, |
05b595e9 | 10169 | u16 pf, u16 vf, bool external) |
e41b6bf3 PP |
10170 | { |
10171 | struct devlink_port_attrs *attrs = &devlink_port->attrs; | |
10172 | int ret; | |
10173 | ||
d7907a2b | 10174 | if (WARN_ON(devlink_port->devlink)) |
9f73bd1c | 10175 | return; |
e41b6bf3 | 10176 | ret = __devlink_port_attrs_set(devlink_port, |
71ad8d55 | 10177 | DEVLINK_PORT_FLAVOUR_PCI_VF); |
e41b6bf3 PP |
10178 | if (ret) |
10179 | return; | |
3a2d9588 | 10180 | attrs->pci_vf.controller = controller; |
e41b6bf3 PP |
10181 | attrs->pci_vf.pf = pf; |
10182 | attrs->pci_vf.vf = vf; | |
05b595e9 | 10183 | attrs->pci_vf.external = external; |
e41b6bf3 PP |
10184 | } |
10185 | EXPORT_SYMBOL_GPL(devlink_port_attrs_pci_vf_set); | |
10186 | ||
b8288837 PP |
10187 | /** |
10188 | * devlink_port_attrs_pci_sf_set - Set PCI SF port attributes | |
10189 | * | |
10190 | * @devlink_port: devlink port | |
10191 | * @controller: associated controller number for the devlink port instance | |
10192 | * @pf: associated PF for the devlink port instance | |
10193 | * @sf: associated SF of a PF for the devlink port instance | |
a1ab3e45 | 10194 | * @external: indicates if the port is for an external controller |
b8288837 PP |
10195 | */ |
10196 | void devlink_port_attrs_pci_sf_set(struct devlink_port *devlink_port, u32 controller, | |
a1ab3e45 | 10197 | u16 pf, u32 sf, bool external) |
b8288837 PP |
10198 | { |
10199 | struct devlink_port_attrs *attrs = &devlink_port->attrs; | |
10200 | int ret; | |
10201 | ||
d7907a2b | 10202 | if (WARN_ON(devlink_port->devlink)) |
b8288837 PP |
10203 | return; |
10204 | ret = __devlink_port_attrs_set(devlink_port, | |
10205 | DEVLINK_PORT_FLAVOUR_PCI_SF); | |
10206 | if (ret) | |
10207 | return; | |
10208 | attrs->pci_sf.controller = controller; | |
10209 | attrs->pci_sf.pf = pf; | |
10210 | attrs->pci_sf.sf = sf; | |
a1ab3e45 | 10211 | attrs->pci_sf.external = external; |
b8288837 PP |
10212 | } |
10213 | EXPORT_SYMBOL_GPL(devlink_port_attrs_pci_sf_set); | |
10214 | ||
4677efc4 | 10215 | /** |
8879b32a | 10216 | * devl_rate_leaf_create - create devlink rate leaf |
4677efc4 DL |
10217 | * @devlink_port: devlink port object to create rate object on |
10218 | * @priv: driver private data | |
10219 | * | |
10220 | * Create devlink rate object of type leaf on provided @devlink_port. | |
4677efc4 | 10221 | */ |
8879b32a | 10222 | int devl_rate_leaf_create(struct devlink_port *devlink_port, void *priv) |
4677efc4 DL |
10223 | { |
10224 | struct devlink *devlink = devlink_port->devlink; | |
10225 | struct devlink_rate *devlink_rate; | |
10226 | ||
8879b32a JK |
10227 | devl_assert_locked(devlink_port->devlink); |
10228 | ||
10229 | if (WARN_ON(devlink_port->devlink_rate)) | |
10230 | return -EBUSY; | |
10231 | ||
4677efc4 DL |
10232 | devlink_rate = kzalloc(sizeof(*devlink_rate), GFP_KERNEL); |
10233 | if (!devlink_rate) | |
10234 | return -ENOMEM; | |
10235 | ||
4677efc4 DL |
10236 | devlink_rate->type = DEVLINK_RATE_TYPE_LEAF; |
10237 | devlink_rate->devlink = devlink; | |
10238 | devlink_rate->devlink_port = devlink_port; | |
10239 | devlink_rate->priv = priv; | |
10240 | list_add_tail(&devlink_rate->list, &devlink->rate_list); | |
10241 | devlink_port->devlink_rate = devlink_rate; | |
10242 | devlink_rate_notify(devlink_rate, DEVLINK_CMD_RATE_NEW); | |
4677efc4 DL |
10243 | |
10244 | return 0; | |
10245 | } | |
8879b32a JK |
10246 | EXPORT_SYMBOL_GPL(devl_rate_leaf_create); |
10247 | ||
df539fc6 MS |
10248 | /** |
10249 | * devl_rate_leaf_destroy - destroy devlink rate leaf | |
10250 | * | |
10251 | * @devlink_port: devlink port linked to the rate object | |
10252 | * | |
10253 | * Destroy the devlink rate object of type leaf on provided @devlink_port. | |
10254 | */ | |
8879b32a JK |
10255 | void devl_rate_leaf_destroy(struct devlink_port *devlink_port) |
10256 | { | |
10257 | struct devlink_rate *devlink_rate = devlink_port->devlink_rate; | |
10258 | ||
10259 | devl_assert_locked(devlink_port->devlink); | |
10260 | if (!devlink_rate) | |
10261 | return; | |
10262 | ||
10263 | devlink_rate_notify(devlink_rate, DEVLINK_CMD_RATE_DEL); | |
10264 | if (devlink_rate->parent) | |
10265 | refcount_dec(&devlink_rate->parent->refcnt); | |
10266 | list_del(&devlink_rate->list); | |
10267 | devlink_port->devlink_rate = NULL; | |
10268 | kfree(devlink_rate); | |
10269 | } | |
10270 | EXPORT_SYMBOL_GPL(devl_rate_leaf_destroy); | |
10271 | ||
a8ecb93e | 10272 | /** |
8879b32a | 10273 | * devl_rate_nodes_destroy - destroy all devlink rate nodes on device |
a8ecb93e DL |
10274 | * @devlink: devlink instance |
10275 | * | |
d7555984 DL |
10276 | * Unset parent for all rate objects and destroy all rate nodes |
10277 | * on specified device. | |
a8ecb93e | 10278 | */ |
8879b32a | 10279 | void devl_rate_nodes_destroy(struct devlink *devlink) |
a8ecb93e DL |
10280 | { |
10281 | static struct devlink_rate *devlink_rate, *tmp; | |
10282 | const struct devlink_ops *ops = devlink->ops; | |
10283 | ||
8879b32a JK |
10284 | devl_assert_locked(devlink); |
10285 | ||
d7555984 DL |
10286 | list_for_each_entry(devlink_rate, &devlink->rate_list, list) { |
10287 | if (!devlink_rate->parent) | |
10288 | continue; | |
10289 | ||
10290 | refcount_dec(&devlink_rate->parent->refcnt); | |
10291 | if (devlink_rate_is_leaf(devlink_rate)) | |
10292 | ops->rate_leaf_parent_set(devlink_rate, NULL, devlink_rate->priv, | |
10293 | NULL, NULL); | |
10294 | else if (devlink_rate_is_node(devlink_rate)) | |
10295 | ops->rate_node_parent_set(devlink_rate, NULL, devlink_rate->priv, | |
10296 | NULL, NULL); | |
10297 | } | |
a8ecb93e DL |
10298 | list_for_each_entry_safe(devlink_rate, tmp, &devlink->rate_list, list) { |
10299 | if (devlink_rate_is_node(devlink_rate)) { | |
10300 | ops->rate_node_del(devlink_rate, devlink_rate->priv, NULL); | |
10301 | list_del(&devlink_rate->list); | |
10302 | kfree(devlink_rate->name); | |
10303 | kfree(devlink_rate); | |
10304 | } | |
10305 | } | |
8879b32a JK |
10306 | } |
10307 | EXPORT_SYMBOL_GPL(devl_rate_nodes_destroy); | |
10308 | ||
b8375859 JP |
10309 | /** |
10310 | * devlink_port_linecard_set - Link port with a linecard | |
10311 | * | |
10312 | * @devlink_port: devlink port | |
10313 | * @linecard: devlink linecard | |
10314 | */ | |
10315 | void devlink_port_linecard_set(struct devlink_port *devlink_port, | |
10316 | struct devlink_linecard *linecard) | |
10317 | { | |
10318 | if (WARN_ON(devlink_port->devlink)) | |
10319 | return; | |
10320 | devlink_port->linecard = linecard; | |
10321 | } | |
10322 | EXPORT_SYMBOL_GPL(devlink_port_linecard_set); | |
10323 | ||
af3836df JP |
10324 | static int __devlink_port_phys_port_name_get(struct devlink_port *devlink_port, |
10325 | char *name, size_t len) | |
08474c1a JP |
10326 | { |
10327 | struct devlink_port_attrs *attrs = &devlink_port->attrs; | |
10328 | int n = 0; | |
10329 | ||
10a429ba | 10330 | if (!devlink_port->attrs_set) |
08474c1a JP |
10331 | return -EOPNOTSUPP; |
10332 | ||
10333 | switch (attrs->flavour) { | |
10334 | case DEVLINK_PORT_FLAVOUR_PHYSICAL: | |
b8375859 JP |
10335 | if (devlink_port->linecard) |
10336 | n = snprintf(name, len, "l%u", | |
10337 | devlink_port->linecard->index); | |
10338 | if (n < len) | |
10339 | n += snprintf(name + n, len - n, "p%u", | |
10340 | attrs->phys.port_number); | |
f285f37c JP |
10341 | if (n < len && attrs->split) |
10342 | n += snprintf(name + n, len - n, "s%u", | |
10343 | attrs->phys.split_subport_number); | |
08474c1a JP |
10344 | break; |
10345 | case DEVLINK_PORT_FLAVOUR_CPU: | |
10346 | case DEVLINK_PORT_FLAVOUR_DSA: | |
cf116634 | 10347 | case DEVLINK_PORT_FLAVOUR_UNUSED: |
08474c1a JP |
10348 | /* As CPU and DSA ports do not have a netdevice associated |
10349 | * case should not ever happen. | |
10350 | */ | |
10351 | WARN_ON(1); | |
10352 | return -EINVAL; | |
98fd2d65 | 10353 | case DEVLINK_PORT_FLAVOUR_PCI_PF: |
66b17082 PP |
10354 | if (attrs->pci_pf.external) { |
10355 | n = snprintf(name, len, "c%u", attrs->pci_pf.controller); | |
10356 | if (n >= len) | |
10357 | return -EINVAL; | |
10358 | len -= n; | |
10359 | name += n; | |
10360 | } | |
98fd2d65 PP |
10361 | n = snprintf(name, len, "pf%u", attrs->pci_pf.pf); |
10362 | break; | |
e41b6bf3 | 10363 | case DEVLINK_PORT_FLAVOUR_PCI_VF: |
66b17082 PP |
10364 | if (attrs->pci_vf.external) { |
10365 | n = snprintf(name, len, "c%u", attrs->pci_vf.controller); | |
10366 | if (n >= len) | |
10367 | return -EINVAL; | |
10368 | len -= n; | |
10369 | name += n; | |
10370 | } | |
e41b6bf3 PP |
10371 | n = snprintf(name, len, "pf%uvf%u", |
10372 | attrs->pci_vf.pf, attrs->pci_vf.vf); | |
10373 | break; | |
b8288837 | 10374 | case DEVLINK_PORT_FLAVOUR_PCI_SF: |
a1ab3e45 PP |
10375 | if (attrs->pci_sf.external) { |
10376 | n = snprintf(name, len, "c%u", attrs->pci_sf.controller); | |
10377 | if (n >= len) | |
10378 | return -EINVAL; | |
10379 | len -= n; | |
10380 | name += n; | |
10381 | } | |
b8288837 PP |
10382 | n = snprintf(name, len, "pf%usf%u", attrs->pci_sf.pf, |
10383 | attrs->pci_sf.sf); | |
10384 | break; | |
149ea30f PP |
10385 | case DEVLINK_PORT_FLAVOUR_VIRTUAL: |
10386 | return -EOPNOTSUPP; | |
08474c1a JP |
10387 | } |
10388 | ||
10389 | if (n >= len) | |
10390 | return -EINVAL; | |
10391 | ||
10392 | return 0; | |
10393 | } | |
af3836df | 10394 | |
fcdc8ce2 JP |
10395 | static int devlink_linecard_types_init(struct devlink_linecard *linecard) |
10396 | { | |
10397 | struct devlink_linecard_type *linecard_type; | |
10398 | unsigned int count; | |
10399 | int i; | |
10400 | ||
10401 | count = linecard->ops->types_count(linecard, linecard->priv); | |
10402 | linecard->types = kmalloc_array(count, sizeof(*linecard_type), | |
10403 | GFP_KERNEL); | |
10404 | if (!linecard->types) | |
10405 | return -ENOMEM; | |
10406 | linecard->types_count = count; | |
10407 | ||
10408 | for (i = 0; i < count; i++) { | |
10409 | linecard_type = &linecard->types[i]; | |
10410 | linecard->ops->types_get(linecard, linecard->priv, i, | |
10411 | &linecard_type->type, | |
10412 | &linecard_type->priv); | |
10413 | } | |
10414 | return 0; | |
10415 | } | |
10416 | ||
10417 | static void devlink_linecard_types_fini(struct devlink_linecard *linecard) | |
10418 | { | |
10419 | kfree(linecard->types); | |
10420 | } | |
10421 | ||
c246f9b5 JP |
10422 | /** |
10423 | * devlink_linecard_create - Create devlink linecard | |
10424 | * | |
10425 | * @devlink: devlink | |
10426 | * @linecard_index: driver-specific numerical identifier of the linecard | |
fcdc8ce2 JP |
10427 | * @ops: linecards ops |
10428 | * @priv: user priv pointer | |
c246f9b5 JP |
10429 | * |
10430 | * Create devlink linecard instance with provided linecard index. | |
10431 | * Caller can use any indexing, even hw-related one. | |
fcdc8ce2 JP |
10432 | * |
10433 | * Return: Line card structure or an ERR_PTR() encoded error code. | |
c246f9b5 | 10434 | */ |
fcdc8ce2 JP |
10435 | struct devlink_linecard * |
10436 | devlink_linecard_create(struct devlink *devlink, unsigned int linecard_index, | |
10437 | const struct devlink_linecard_ops *ops, void *priv) | |
c246f9b5 JP |
10438 | { |
10439 | struct devlink_linecard *linecard; | |
fcdc8ce2 JP |
10440 | int err; |
10441 | ||
10442 | if (WARN_ON(!ops || !ops->provision || !ops->unprovision || | |
10443 | !ops->types_count || !ops->types_get)) | |
10444 | return ERR_PTR(-EINVAL); | |
c246f9b5 JP |
10445 | |
10446 | mutex_lock(&devlink->linecards_lock); | |
10447 | if (devlink_linecard_index_exists(devlink, linecard_index)) { | |
10448 | mutex_unlock(&devlink->linecards_lock); | |
10449 | return ERR_PTR(-EEXIST); | |
10450 | } | |
10451 | ||
10452 | linecard = kzalloc(sizeof(*linecard), GFP_KERNEL); | |
10453 | if (!linecard) { | |
10454 | mutex_unlock(&devlink->linecards_lock); | |
10455 | return ERR_PTR(-ENOMEM); | |
10456 | } | |
10457 | ||
10458 | linecard->devlink = devlink; | |
10459 | linecard->index = linecard_index; | |
fcdc8ce2 JP |
10460 | linecard->ops = ops; |
10461 | linecard->priv = priv; | |
10462 | linecard->state = DEVLINK_LINECARD_STATE_UNPROVISIONED; | |
10463 | mutex_init(&linecard->state_lock); | |
10464 | ||
10465 | err = devlink_linecard_types_init(linecard); | |
10466 | if (err) { | |
10467 | mutex_destroy(&linecard->state_lock); | |
10468 | kfree(linecard); | |
10469 | mutex_unlock(&devlink->linecards_lock); | |
10470 | return ERR_PTR(err); | |
10471 | } | |
10472 | ||
c246f9b5 JP |
10473 | list_add_tail(&linecard->list, &devlink->linecard_list); |
10474 | refcount_set(&linecard->refcount, 1); | |
10475 | mutex_unlock(&devlink->linecards_lock); | |
10476 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
10477 | return linecard; | |
10478 | } | |
10479 | EXPORT_SYMBOL_GPL(devlink_linecard_create); | |
10480 | ||
10481 | /** | |
10482 | * devlink_linecard_destroy - Destroy devlink linecard | |
10483 | * | |
10484 | * @linecard: devlink linecard | |
10485 | */ | |
10486 | void devlink_linecard_destroy(struct devlink_linecard *linecard) | |
10487 | { | |
10488 | struct devlink *devlink = linecard->devlink; | |
10489 | ||
10490 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_DEL); | |
10491 | mutex_lock(&devlink->linecards_lock); | |
10492 | list_del(&linecard->list); | |
fcdc8ce2 | 10493 | devlink_linecard_types_fini(linecard); |
c246f9b5 JP |
10494 | mutex_unlock(&devlink->linecards_lock); |
10495 | devlink_linecard_put(linecard); | |
10496 | } | |
10497 | EXPORT_SYMBOL_GPL(devlink_linecard_destroy); | |
10498 | ||
fcdc8ce2 JP |
10499 | /** |
10500 | * devlink_linecard_provision_set - Set provisioning on linecard | |
10501 | * | |
10502 | * @linecard: devlink linecard | |
10503 | * @type: linecard type | |
10504 | * | |
10505 | * This is either called directly from the provision() op call or | |
10506 | * as a result of the provision() op call asynchronously. | |
10507 | */ | |
10508 | void devlink_linecard_provision_set(struct devlink_linecard *linecard, | |
10509 | const char *type) | |
10510 | { | |
10511 | mutex_lock(&linecard->state_lock); | |
10512 | WARN_ON(linecard->type && strcmp(linecard->type, type)); | |
10513 | linecard->state = DEVLINK_LINECARD_STATE_PROVISIONED; | |
10514 | linecard->type = type; | |
10515 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
10516 | mutex_unlock(&linecard->state_lock); | |
10517 | } | |
10518 | EXPORT_SYMBOL_GPL(devlink_linecard_provision_set); | |
10519 | ||
10520 | /** | |
10521 | * devlink_linecard_provision_clear - Clear provisioning on linecard | |
10522 | * | |
10523 | * @linecard: devlink linecard | |
10524 | * | |
10525 | * This is either called directly from the unprovision() op call or | |
10526 | * as a result of the unprovision() op call asynchronously. | |
10527 | */ | |
10528 | void devlink_linecard_provision_clear(struct devlink_linecard *linecard) | |
10529 | { | |
10530 | mutex_lock(&linecard->state_lock); | |
7b2d9a1a | 10531 | WARN_ON(linecard->nested_devlink); |
fcdc8ce2 JP |
10532 | linecard->state = DEVLINK_LINECARD_STATE_UNPROVISIONED; |
10533 | linecard->type = NULL; | |
10534 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
10535 | mutex_unlock(&linecard->state_lock); | |
10536 | } | |
10537 | EXPORT_SYMBOL_GPL(devlink_linecard_provision_clear); | |
10538 | ||
10539 | /** | |
10540 | * devlink_linecard_provision_fail - Fail provisioning on linecard | |
10541 | * | |
10542 | * @linecard: devlink linecard | |
10543 | * | |
10544 | * This is either called directly from the provision() op call or | |
10545 | * as a result of the provision() op call asynchronously. | |
10546 | */ | |
10547 | void devlink_linecard_provision_fail(struct devlink_linecard *linecard) | |
10548 | { | |
10549 | mutex_lock(&linecard->state_lock); | |
7b2d9a1a | 10550 | WARN_ON(linecard->nested_devlink); |
fcdc8ce2 JP |
10551 | linecard->state = DEVLINK_LINECARD_STATE_PROVISIONING_FAILED; |
10552 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
10553 | mutex_unlock(&linecard->state_lock); | |
10554 | } | |
10555 | EXPORT_SYMBOL_GPL(devlink_linecard_provision_fail); | |
10556 | ||
fc9f50d5 JP |
10557 | /** |
10558 | * devlink_linecard_activate - Set linecard active | |
10559 | * | |
10560 | * @linecard: devlink linecard | |
10561 | */ | |
10562 | void devlink_linecard_activate(struct devlink_linecard *linecard) | |
10563 | { | |
10564 | mutex_lock(&linecard->state_lock); | |
10565 | WARN_ON(linecard->state != DEVLINK_LINECARD_STATE_PROVISIONED); | |
10566 | linecard->state = DEVLINK_LINECARD_STATE_ACTIVE; | |
10567 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
10568 | mutex_unlock(&linecard->state_lock); | |
10569 | } | |
10570 | EXPORT_SYMBOL_GPL(devlink_linecard_activate); | |
10571 | ||
10572 | /** | |
10573 | * devlink_linecard_deactivate - Set linecard inactive | |
10574 | * | |
10575 | * @linecard: devlink linecard | |
10576 | */ | |
10577 | void devlink_linecard_deactivate(struct devlink_linecard *linecard) | |
10578 | { | |
10579 | mutex_lock(&linecard->state_lock); | |
10580 | switch (linecard->state) { | |
10581 | case DEVLINK_LINECARD_STATE_ACTIVE: | |
10582 | linecard->state = DEVLINK_LINECARD_STATE_PROVISIONED; | |
10583 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
10584 | break; | |
10585 | case DEVLINK_LINECARD_STATE_UNPROVISIONING: | |
10586 | /* Line card is being deactivated as part | |
10587 | * of unprovisioning flow. | |
10588 | */ | |
10589 | break; | |
10590 | default: | |
10591 | WARN_ON(1); | |
10592 | break; | |
10593 | } | |
10594 | mutex_unlock(&linecard->state_lock); | |
10595 | } | |
10596 | EXPORT_SYMBOL_GPL(devlink_linecard_deactivate); | |
10597 | ||
7b2d9a1a JP |
10598 | /** |
10599 | * devlink_linecard_nested_dl_set - Attach/detach nested devlink | |
10600 | * instance to linecard. | |
10601 | * | |
10602 | * @linecard: devlink linecard | |
10603 | * @nested_devlink: devlink instance to attach or NULL to detach | |
10604 | */ | |
10605 | void devlink_linecard_nested_dl_set(struct devlink_linecard *linecard, | |
10606 | struct devlink *nested_devlink) | |
10607 | { | |
10608 | mutex_lock(&linecard->state_lock); | |
10609 | linecard->nested_devlink = nested_devlink; | |
10610 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
10611 | mutex_unlock(&linecard->state_lock); | |
10612 | } | |
10613 | EXPORT_SYMBOL_GPL(devlink_linecard_nested_dl_set); | |
10614 | ||
755cfa69 JP |
10615 | int devl_sb_register(struct devlink *devlink, unsigned int sb_index, |
10616 | u32 size, u16 ingress_pools_count, | |
10617 | u16 egress_pools_count, u16 ingress_tc_count, | |
10618 | u16 egress_tc_count) | |
bf797471 JP |
10619 | { |
10620 | struct devlink_sb *devlink_sb; | |
bf797471 | 10621 | |
755cfa69 JP |
10622 | lockdep_assert_held(&devlink->lock); |
10623 | ||
10624 | if (devlink_sb_index_exists(devlink, sb_index)) | |
10625 | return -EEXIST; | |
bf797471 JP |
10626 | |
10627 | devlink_sb = kzalloc(sizeof(*devlink_sb), GFP_KERNEL); | |
755cfa69 JP |
10628 | if (!devlink_sb) |
10629 | return -ENOMEM; | |
bf797471 JP |
10630 | devlink_sb->index = sb_index; |
10631 | devlink_sb->size = size; | |
10632 | devlink_sb->ingress_pools_count = ingress_pools_count; | |
10633 | devlink_sb->egress_pools_count = egress_pools_count; | |
10634 | devlink_sb->ingress_tc_count = ingress_tc_count; | |
10635 | devlink_sb->egress_tc_count = egress_tc_count; | |
10636 | list_add_tail(&devlink_sb->list, &devlink->sb_list); | |
755cfa69 JP |
10637 | return 0; |
10638 | } | |
10639 | EXPORT_SYMBOL_GPL(devl_sb_register); | |
10640 | ||
10641 | int devlink_sb_register(struct devlink *devlink, unsigned int sb_index, | |
10642 | u32 size, u16 ingress_pools_count, | |
10643 | u16 egress_pools_count, u16 ingress_tc_count, | |
10644 | u16 egress_tc_count) | |
10645 | { | |
10646 | int err; | |
10647 | ||
10648 | devl_lock(devlink); | |
10649 | err = devl_sb_register(devlink, sb_index, size, ingress_pools_count, | |
10650 | egress_pools_count, ingress_tc_count, | |
10651 | egress_tc_count); | |
7715023a | 10652 | devl_unlock(devlink); |
bf797471 JP |
10653 | return err; |
10654 | } | |
10655 | EXPORT_SYMBOL_GPL(devlink_sb_register); | |
10656 | ||
755cfa69 | 10657 | void devl_sb_unregister(struct devlink *devlink, unsigned int sb_index) |
bf797471 JP |
10658 | { |
10659 | struct devlink_sb *devlink_sb; | |
10660 | ||
755cfa69 JP |
10661 | lockdep_assert_held(&devlink->lock); |
10662 | ||
bf797471 JP |
10663 | devlink_sb = devlink_sb_get_by_index(devlink, sb_index); |
10664 | WARN_ON(!devlink_sb); | |
10665 | list_del(&devlink_sb->list); | |
bf797471 JP |
10666 | kfree(devlink_sb); |
10667 | } | |
755cfa69 JP |
10668 | EXPORT_SYMBOL_GPL(devl_sb_unregister); |
10669 | ||
10670 | void devlink_sb_unregister(struct devlink *devlink, unsigned int sb_index) | |
10671 | { | |
10672 | devl_lock(devlink); | |
10673 | devl_sb_unregister(devlink, sb_index); | |
10674 | devl_unlock(devlink); | |
10675 | } | |
bf797471 JP |
10676 | EXPORT_SYMBOL_GPL(devlink_sb_unregister); |
10677 | ||
70a2ff89 JP |
10678 | /** |
10679 | * devl_dpipe_headers_register - register dpipe headers | |
10680 | * | |
10681 | * @devlink: devlink | |
10682 | * @dpipe_headers: dpipe header array | |
10683 | * | |
10684 | * Register the headers supported by hardware. | |
10685 | */ | |
10686 | void devl_dpipe_headers_register(struct devlink *devlink, | |
10687 | struct devlink_dpipe_headers *dpipe_headers) | |
10688 | { | |
10689 | lockdep_assert_held(&devlink->lock); | |
10690 | ||
10691 | devlink->dpipe_headers = dpipe_headers; | |
10692 | } | |
10693 | EXPORT_SYMBOL_GPL(devl_dpipe_headers_register); | |
10694 | ||
70a2ff89 JP |
10695 | /** |
10696 | * devl_dpipe_headers_unregister - unregister dpipe headers | |
10697 | * | |
10698 | * @devlink: devlink | |
10699 | * | |
10700 | * Unregister the headers supported by hardware. | |
10701 | */ | |
10702 | void devl_dpipe_headers_unregister(struct devlink *devlink) | |
10703 | { | |
10704 | lockdep_assert_held(&devlink->lock); | |
10705 | ||
10706 | devlink->dpipe_headers = NULL; | |
10707 | } | |
10708 | EXPORT_SYMBOL_GPL(devl_dpipe_headers_unregister); | |
10709 | ||
1555d204 AS |
10710 | /** |
10711 | * devlink_dpipe_table_counter_enabled - check if counter allocation | |
10712 | * required | |
10713 | * @devlink: devlink | |
10714 | * @table_name: tables name | |
10715 | * | |
10716 | * Used by driver to check if counter allocation is required. | |
10717 | * After counter allocation is turned on the table entries | |
10718 | * are updated to include counter statistics. | |
10719 | * | |
10720 | * After that point on the driver must respect the counter | |
10721 | * state so that each entry added to the table is added | |
10722 | * with a counter. | |
10723 | */ | |
10724 | bool devlink_dpipe_table_counter_enabled(struct devlink *devlink, | |
10725 | const char *table_name) | |
10726 | { | |
10727 | struct devlink_dpipe_table *table; | |
10728 | bool enabled; | |
10729 | ||
10730 | rcu_read_lock(); | |
10731 | table = devlink_dpipe_table_find(&devlink->dpipe_table_list, | |
2eb51c75 | 10732 | table_name, devlink); |
1555d204 AS |
10733 | enabled = false; |
10734 | if (table) | |
10735 | enabled = table->counters_enabled; | |
10736 | rcu_read_unlock(); | |
10737 | return enabled; | |
10738 | } | |
10739 | EXPORT_SYMBOL_GPL(devlink_dpipe_table_counter_enabled); | |
10740 | ||
10741 | /** | |
70a2ff89 | 10742 | * devl_dpipe_table_register - register dpipe table |
1555d204 | 10743 | * |
70a2ff89 JP |
10744 | * @devlink: devlink |
10745 | * @table_name: table name | |
10746 | * @table_ops: table ops | |
10747 | * @priv: priv | |
10748 | * @counter_control_extern: external control for counters | |
1555d204 | 10749 | */ |
70a2ff89 JP |
10750 | int devl_dpipe_table_register(struct devlink *devlink, |
10751 | const char *table_name, | |
10752 | struct devlink_dpipe_table_ops *table_ops, | |
10753 | void *priv, bool counter_control_extern) | |
1555d204 AS |
10754 | { |
10755 | struct devlink_dpipe_table *table; | |
70a2ff89 JP |
10756 | |
10757 | lockdep_assert_held(&devlink->lock); | |
1555d204 | 10758 | |
ffd3cdcc AS |
10759 | if (WARN_ON(!table_ops->size_get)) |
10760 | return -EINVAL; | |
10761 | ||
2eb51c75 | 10762 | if (devlink_dpipe_table_find(&devlink->dpipe_table_list, table_name, |
70a2ff89 JP |
10763 | devlink)) |
10764 | return -EEXIST; | |
6132c1d9 | 10765 | |
1555d204 | 10766 | table = kzalloc(sizeof(*table), GFP_KERNEL); |
70a2ff89 JP |
10767 | if (!table) |
10768 | return -ENOMEM; | |
1555d204 AS |
10769 | |
10770 | table->name = table_name; | |
10771 | table->table_ops = table_ops; | |
10772 | table->priv = priv; | |
1555d204 AS |
10773 | table->counter_control_extern = counter_control_extern; |
10774 | ||
1555d204 | 10775 | list_add_tail_rcu(&table->list, &devlink->dpipe_table_list); |
70a2ff89 JP |
10776 | |
10777 | return 0; | |
10778 | } | |
10779 | EXPORT_SYMBOL_GPL(devl_dpipe_table_register); | |
10780 | ||
1555d204 | 10781 | /** |
70a2ff89 | 10782 | * devl_dpipe_table_unregister - unregister dpipe table |
1555d204 | 10783 | * |
70a2ff89 JP |
10784 | * @devlink: devlink |
10785 | * @table_name: table name | |
1555d204 | 10786 | */ |
70a2ff89 JP |
10787 | void devl_dpipe_table_unregister(struct devlink *devlink, |
10788 | const char *table_name) | |
1555d204 AS |
10789 | { |
10790 | struct devlink_dpipe_table *table; | |
10791 | ||
70a2ff89 JP |
10792 | lockdep_assert_held(&devlink->lock); |
10793 | ||
1555d204 | 10794 | table = devlink_dpipe_table_find(&devlink->dpipe_table_list, |
2eb51c75 | 10795 | table_name, devlink); |
1555d204 | 10796 | if (!table) |
70a2ff89 | 10797 | return; |
1555d204 | 10798 | list_del_rcu(&table->list); |
1555d204 | 10799 | kfree_rcu(table, rcu); |
70a2ff89 JP |
10800 | } |
10801 | EXPORT_SYMBOL_GPL(devl_dpipe_table_unregister); | |
10802 | ||
d9f9b9a4 | 10803 | /** |
c223d6a4 | 10804 | * devl_resource_register - devlink resource register |
d9f9b9a4 | 10805 | * |
c223d6a4 JP |
10806 | * @devlink: devlink |
10807 | * @resource_name: resource's name | |
10808 | * @resource_size: resource's size | |
10809 | * @resource_id: resource's id | |
10810 | * @parent_resource_id: resource's parent id | |
10811 | * @size_params: size parameters | |
321f7ab0 | 10812 | * |
c223d6a4 JP |
10813 | * Generic resources should reuse the same names across drivers. |
10814 | * Please see the generic resources list at: | |
10815 | * Documentation/networking/devlink/devlink-resource.rst | |
d9f9b9a4 | 10816 | */ |
c223d6a4 JP |
10817 | int devl_resource_register(struct devlink *devlink, |
10818 | const char *resource_name, | |
10819 | u64 resource_size, | |
10820 | u64 resource_id, | |
10821 | u64 parent_resource_id, | |
10822 | const struct devlink_resource_size_params *size_params) | |
d9f9b9a4 AS |
10823 | { |
10824 | struct devlink_resource *resource; | |
10825 | struct list_head *resource_list; | |
14530746 | 10826 | bool top_hierarchy; |
c223d6a4 JP |
10827 | |
10828 | lockdep_assert_held(&devlink->lock); | |
d9f9b9a4 | 10829 | |
14530746 DA |
10830 | top_hierarchy = parent_resource_id == DEVLINK_RESOURCE_ID_PARENT_TOP; |
10831 | ||
d9f9b9a4 | 10832 | resource = devlink_resource_find(devlink, NULL, resource_id); |
c223d6a4 JP |
10833 | if (resource) |
10834 | return -EINVAL; | |
d9f9b9a4 AS |
10835 | |
10836 | resource = kzalloc(sizeof(*resource), GFP_KERNEL); | |
c223d6a4 JP |
10837 | if (!resource) |
10838 | return -ENOMEM; | |
d9f9b9a4 AS |
10839 | |
10840 | if (top_hierarchy) { | |
10841 | resource_list = &devlink->resource_list; | |
10842 | } else { | |
10843 | struct devlink_resource *parent_resource; | |
10844 | ||
10845 | parent_resource = devlink_resource_find(devlink, NULL, | |
10846 | parent_resource_id); | |
10847 | if (parent_resource) { | |
10848 | resource_list = &parent_resource->resource_list; | |
10849 | resource->parent = parent_resource; | |
10850 | } else { | |
b75703de | 10851 | kfree(resource); |
c223d6a4 | 10852 | return -EINVAL; |
d9f9b9a4 AS |
10853 | } |
10854 | } | |
10855 | ||
10856 | resource->name = resource_name; | |
10857 | resource->size = resource_size; | |
10858 | resource->size_new = resource_size; | |
10859 | resource->id = resource_id; | |
d9f9b9a4 | 10860 | resource->size_valid = true; |
77d27096 JP |
10861 | memcpy(&resource->size_params, size_params, |
10862 | sizeof(resource->size_params)); | |
d9f9b9a4 AS |
10863 | INIT_LIST_HEAD(&resource->resource_list); |
10864 | list_add_tail(&resource->list, resource_list); | |
c223d6a4 JP |
10865 | |
10866 | return 0; | |
10867 | } | |
10868 | EXPORT_SYMBOL_GPL(devl_resource_register); | |
10869 | ||
10870 | /** | |
10871 | * devlink_resource_register - devlink resource register | |
10872 | * | |
10873 | * @devlink: devlink | |
10874 | * @resource_name: resource's name | |
10875 | * @resource_size: resource's size | |
10876 | * @resource_id: resource's id | |
10877 | * @parent_resource_id: resource's parent id | |
10878 | * @size_params: size parameters | |
10879 | * | |
10880 | * Generic resources should reuse the same names across drivers. | |
10881 | * Please see the generic resources list at: | |
10882 | * Documentation/networking/devlink/devlink-resource.rst | |
10883 | * | |
10884 | * Context: Takes and release devlink->lock <mutex>. | |
10885 | */ | |
10886 | int devlink_resource_register(struct devlink *devlink, | |
10887 | const char *resource_name, | |
10888 | u64 resource_size, | |
10889 | u64 resource_id, | |
10890 | u64 parent_resource_id, | |
10891 | const struct devlink_resource_size_params *size_params) | |
10892 | { | |
10893 | int err; | |
10894 | ||
10895 | devl_lock(devlink); | |
10896 | err = devl_resource_register(devlink, resource_name, resource_size, | |
10897 | resource_id, parent_resource_id, size_params); | |
7715023a | 10898 | devl_unlock(devlink); |
d9f9b9a4 AS |
10899 | return err; |
10900 | } | |
10901 | EXPORT_SYMBOL_GPL(devlink_resource_register); | |
10902 | ||
4c897cfc LR |
10903 | static void devlink_resource_unregister(struct devlink *devlink, |
10904 | struct devlink_resource *resource) | |
10905 | { | |
10906 | struct devlink_resource *tmp, *child_resource; | |
10907 | ||
10908 | list_for_each_entry_safe(child_resource, tmp, &resource->resource_list, | |
10909 | list) { | |
10910 | devlink_resource_unregister(devlink, child_resource); | |
10911 | list_del(&child_resource->list); | |
10912 | kfree(child_resource); | |
10913 | } | |
10914 | } | |
10915 | ||
d9f9b9a4 | 10916 | /** |
c223d6a4 | 10917 | * devl_resources_unregister - free all resources |
d9f9b9a4 | 10918 | * |
c223d6a4 | 10919 | * @devlink: devlink |
d9f9b9a4 | 10920 | */ |
c223d6a4 | 10921 | void devl_resources_unregister(struct devlink *devlink) |
d9f9b9a4 AS |
10922 | { |
10923 | struct devlink_resource *tmp, *child_resource; | |
d9f9b9a4 | 10924 | |
c223d6a4 | 10925 | lockdep_assert_held(&devlink->lock); |
d9f9b9a4 | 10926 | |
4c897cfc LR |
10927 | list_for_each_entry_safe(child_resource, tmp, &devlink->resource_list, |
10928 | list) { | |
10929 | devlink_resource_unregister(devlink, child_resource); | |
d9f9b9a4 AS |
10930 | list_del(&child_resource->list); |
10931 | kfree(child_resource); | |
10932 | } | |
c223d6a4 JP |
10933 | } |
10934 | EXPORT_SYMBOL_GPL(devl_resources_unregister); | |
d9f9b9a4 | 10935 | |
c223d6a4 JP |
10936 | /** |
10937 | * devlink_resources_unregister - free all resources | |
10938 | * | |
10939 | * @devlink: devlink | |
10940 | * | |
10941 | * Context: Takes and release devlink->lock <mutex>. | |
10942 | */ | |
10943 | void devlink_resources_unregister(struct devlink *devlink) | |
10944 | { | |
10945 | devl_lock(devlink); | |
10946 | devl_resources_unregister(devlink); | |
7715023a | 10947 | devl_unlock(devlink); |
d9f9b9a4 AS |
10948 | } |
10949 | EXPORT_SYMBOL_GPL(devlink_resources_unregister); | |
10950 | ||
c223d6a4 JP |
10951 | /** |
10952 | * devl_resource_size_get - get and update size | |
10953 | * | |
10954 | * @devlink: devlink | |
10955 | * @resource_id: the requested resource id | |
10956 | * @p_resource_size: ptr to update | |
10957 | */ | |
10958 | int devl_resource_size_get(struct devlink *devlink, | |
10959 | u64 resource_id, | |
10960 | u64 *p_resource_size) | |
10961 | { | |
10962 | struct devlink_resource *resource; | |
10963 | ||
10964 | lockdep_assert_held(&devlink->lock); | |
10965 | ||
10966 | resource = devlink_resource_find(devlink, NULL, resource_id); | |
10967 | if (!resource) | |
10968 | return -EINVAL; | |
10969 | *p_resource_size = resource->size_new; | |
10970 | resource->size = resource->size_new; | |
10971 | return 0; | |
10972 | } | |
10973 | EXPORT_SYMBOL_GPL(devl_resource_size_get); | |
10974 | ||
70a2ff89 JP |
10975 | /** |
10976 | * devl_dpipe_table_resource_set - set the resource id | |
10977 | * | |
10978 | * @devlink: devlink | |
10979 | * @table_name: table name | |
10980 | * @resource_id: resource id | |
10981 | * @resource_units: number of resource's units consumed per table's entry | |
10982 | */ | |
10983 | int devl_dpipe_table_resource_set(struct devlink *devlink, | |
10984 | const char *table_name, u64 resource_id, | |
10985 | u64 resource_units) | |
10986 | { | |
10987 | struct devlink_dpipe_table *table; | |
10988 | ||
10989 | table = devlink_dpipe_table_find(&devlink->dpipe_table_list, | |
10990 | table_name, devlink); | |
10991 | if (!table) | |
10992 | return -EINVAL; | |
10993 | ||
10994 | table->resource_id = resource_id; | |
10995 | table->resource_units = resource_units; | |
10996 | table->resource_valid = true; | |
10997 | return 0; | |
10998 | } | |
10999 | EXPORT_SYMBOL_GPL(devl_dpipe_table_resource_set); | |
11000 | ||
c223d6a4 JP |
11001 | /** |
11002 | * devl_resource_occ_get_register - register occupancy getter | |
11003 | * | |
11004 | * @devlink: devlink | |
11005 | * @resource_id: resource id | |
11006 | * @occ_get: occupancy getter callback | |
11007 | * @occ_get_priv: occupancy getter callback priv | |
11008 | */ | |
11009 | void devl_resource_occ_get_register(struct devlink *devlink, | |
11010 | u64 resource_id, | |
11011 | devlink_resource_occ_get_t *occ_get, | |
11012 | void *occ_get_priv) | |
11013 | { | |
11014 | struct devlink_resource *resource; | |
11015 | ||
11016 | lockdep_assert_held(&devlink->lock); | |
11017 | ||
11018 | resource = devlink_resource_find(devlink, NULL, resource_id); | |
11019 | if (WARN_ON(!resource)) | |
11020 | return; | |
11021 | WARN_ON(resource->occ_get); | |
11022 | ||
11023 | resource->occ_get = occ_get; | |
11024 | resource->occ_get_priv = occ_get_priv; | |
11025 | } | |
11026 | EXPORT_SYMBOL_GPL(devl_resource_occ_get_register); | |
11027 | ||
fc56be47 JP |
11028 | /** |
11029 | * devlink_resource_occ_get_register - register occupancy getter | |
11030 | * | |
11031 | * @devlink: devlink | |
11032 | * @resource_id: resource id | |
11033 | * @occ_get: occupancy getter callback | |
11034 | * @occ_get_priv: occupancy getter callback priv | |
c223d6a4 JP |
11035 | * |
11036 | * Context: Takes and release devlink->lock <mutex>. | |
fc56be47 JP |
11037 | */ |
11038 | void devlink_resource_occ_get_register(struct devlink *devlink, | |
11039 | u64 resource_id, | |
11040 | devlink_resource_occ_get_t *occ_get, | |
11041 | void *occ_get_priv) | |
11042 | { | |
7715023a | 11043 | devl_lock(devlink); |
c223d6a4 JP |
11044 | devl_resource_occ_get_register(devlink, resource_id, |
11045 | occ_get, occ_get_priv); | |
7715023a | 11046 | devl_unlock(devlink); |
fc56be47 JP |
11047 | } |
11048 | EXPORT_SYMBOL_GPL(devlink_resource_occ_get_register); | |
11049 | ||
11050 | /** | |
c223d6a4 | 11051 | * devl_resource_occ_get_unregister - unregister occupancy getter |
fc56be47 | 11052 | * |
c223d6a4 JP |
11053 | * @devlink: devlink |
11054 | * @resource_id: resource id | |
fc56be47 | 11055 | */ |
c223d6a4 JP |
11056 | void devl_resource_occ_get_unregister(struct devlink *devlink, |
11057 | u64 resource_id) | |
fc56be47 JP |
11058 | { |
11059 | struct devlink_resource *resource; | |
11060 | ||
c223d6a4 JP |
11061 | lockdep_assert_held(&devlink->lock); |
11062 | ||
fc56be47 JP |
11063 | resource = devlink_resource_find(devlink, NULL, resource_id); |
11064 | if (WARN_ON(!resource)) | |
c223d6a4 | 11065 | return; |
fc56be47 JP |
11066 | WARN_ON(!resource->occ_get); |
11067 | ||
11068 | resource->occ_get = NULL; | |
11069 | resource->occ_get_priv = NULL; | |
c223d6a4 JP |
11070 | } |
11071 | EXPORT_SYMBOL_GPL(devl_resource_occ_get_unregister); | |
11072 | ||
11073 | /** | |
11074 | * devlink_resource_occ_get_unregister - unregister occupancy getter | |
11075 | * | |
11076 | * @devlink: devlink | |
11077 | * @resource_id: resource id | |
11078 | * | |
11079 | * Context: Takes and release devlink->lock <mutex>. | |
11080 | */ | |
11081 | void devlink_resource_occ_get_unregister(struct devlink *devlink, | |
11082 | u64 resource_id) | |
11083 | { | |
11084 | devl_lock(devlink); | |
11085 | devl_resource_occ_get_unregister(devlink, resource_id); | |
7715023a | 11086 | devl_unlock(devlink); |
fc56be47 JP |
11087 | } |
11088 | EXPORT_SYMBOL_GPL(devlink_resource_occ_get_unregister); | |
11089 | ||
39e6160e VV |
11090 | static int devlink_param_verify(const struct devlink_param *param) |
11091 | { | |
11092 | if (!param || !param->name || !param->supported_cmodes) | |
11093 | return -EINVAL; | |
11094 | if (param->generic) | |
11095 | return devlink_param_generic_verify(param); | |
11096 | else | |
11097 | return devlink_param_driver_verify(param); | |
11098 | } | |
11099 | ||
39e6160e VV |
11100 | /** |
11101 | * devlink_params_register - register configuration parameters | |
11102 | * | |
11103 | * @devlink: devlink | |
11104 | * @params: configuration parameters array | |
11105 | * @params_count: number of parameters provided | |
11106 | * | |
11107 | * Register the configuration parameters supported by the driver. | |
11108 | */ | |
11109 | int devlink_params_register(struct devlink *devlink, | |
11110 | const struct devlink_param *params, | |
11111 | size_t params_count) | |
11112 | { | |
ee775b56 LR |
11113 | const struct devlink_param *param = params; |
11114 | int i, err; | |
11115 | ||
7a690ad4 LR |
11116 | ASSERT_DEVLINK_NOT_REGISTERED(devlink); |
11117 | ||
ee775b56 LR |
11118 | for (i = 0; i < params_count; i++, param++) { |
11119 | err = devlink_param_register(devlink, param); | |
11120 | if (err) | |
11121 | goto rollback; | |
11122 | } | |
11123 | return 0; | |
11124 | ||
11125 | rollback: | |
11126 | if (!i) | |
11127 | return err; | |
11128 | ||
11129 | for (param--; i > 0; i--, param--) | |
11130 | devlink_param_unregister(devlink, param); | |
11131 | return err; | |
39e6160e | 11132 | } |
eabaef18 MS |
11133 | EXPORT_SYMBOL_GPL(devlink_params_register); |
11134 | ||
11135 | /** | |
11136 | * devlink_params_unregister - unregister configuration parameters | |
11137 | * @devlink: devlink | |
11138 | * @params: configuration parameters to unregister | |
11139 | * @params_count: number of parameters provided | |
11140 | */ | |
11141 | void devlink_params_unregister(struct devlink *devlink, | |
11142 | const struct devlink_param *params, | |
11143 | size_t params_count) | |
11144 | { | |
ee775b56 LR |
11145 | const struct devlink_param *param = params; |
11146 | int i; | |
11147 | ||
7a690ad4 LR |
11148 | ASSERT_DEVLINK_NOT_REGISTERED(devlink); |
11149 | ||
ee775b56 LR |
11150 | for (i = 0; i < params_count; i++, param++) |
11151 | devlink_param_unregister(devlink, param); | |
eabaef18 MS |
11152 | } |
11153 | EXPORT_SYMBOL_GPL(devlink_params_unregister); | |
11154 | ||
b40c51ef PP |
11155 | /** |
11156 | * devlink_param_register - register one configuration parameter | |
11157 | * | |
11158 | * @devlink: devlink | |
11159 | * @param: one configuration parameter | |
11160 | * | |
11161 | * Register the configuration parameter supported by the driver. | |
11162 | * Return: returns 0 on successful registration or error code otherwise. | |
11163 | */ | |
11164 | int devlink_param_register(struct devlink *devlink, | |
11165 | const struct devlink_param *param) | |
11166 | { | |
ee775b56 | 11167 | struct devlink_param_item *param_item; |
b40c51ef | 11168 | |
7a690ad4 LR |
11169 | ASSERT_DEVLINK_NOT_REGISTERED(devlink); |
11170 | ||
ee775b56 LR |
11171 | WARN_ON(devlink_param_verify(param)); |
11172 | WARN_ON(devlink_param_find_by_name(&devlink->param_list, param->name)); | |
11173 | ||
11174 | if (param->supported_cmodes == BIT(DEVLINK_PARAM_CMODE_DRIVERINIT)) | |
11175 | WARN_ON(param->get || param->set); | |
11176 | else | |
11177 | WARN_ON(!param->get || !param->set); | |
11178 | ||
11179 | param_item = kzalloc(sizeof(*param_item), GFP_KERNEL); | |
11180 | if (!param_item) | |
11181 | return -ENOMEM; | |
11182 | ||
11183 | param_item->param = param; | |
11184 | ||
11185 | list_add_tail(¶m_item->list, &devlink->param_list); | |
11186 | return 0; | |
b40c51ef PP |
11187 | } |
11188 | EXPORT_SYMBOL_GPL(devlink_param_register); | |
11189 | ||
11190 | /** | |
11191 | * devlink_param_unregister - unregister one configuration parameter | |
11192 | * @devlink: devlink | |
11193 | * @param: configuration parameter to unregister | |
11194 | */ | |
11195 | void devlink_param_unregister(struct devlink *devlink, | |
11196 | const struct devlink_param *param) | |
11197 | { | |
ee775b56 LR |
11198 | struct devlink_param_item *param_item; |
11199 | ||
7a690ad4 LR |
11200 | ASSERT_DEVLINK_NOT_REGISTERED(devlink); |
11201 | ||
ee775b56 LR |
11202 | param_item = |
11203 | devlink_param_find_by_name(&devlink->param_list, param->name); | |
11204 | WARN_ON(!param_item); | |
11205 | list_del(¶m_item->list); | |
11206 | kfree(param_item); | |
b40c51ef PP |
11207 | } |
11208 | EXPORT_SYMBOL_GPL(devlink_param_unregister); | |
11209 | ||
8ba024df LR |
11210 | /** |
11211 | * devlink_param_driverinit_value_get - get configuration parameter | |
11212 | * value for driver initializing | |
11213 | * | |
11214 | * @devlink: devlink | |
11215 | * @param_id: parameter ID | |
11216 | * @init_val: value of parameter in driverinit configuration mode | |
11217 | * | |
11218 | * This function should be used by the driver to get driverinit | |
11219 | * configuration for initialization after reload command. | |
11220 | */ | |
11221 | int devlink_param_driverinit_value_get(struct devlink *devlink, u32 param_id, | |
11222 | union devlink_param_value *init_val) | |
ec01aeb1 MS |
11223 | { |
11224 | struct devlink_param_item *param_item; | |
11225 | ||
8ba024df LR |
11226 | if (!devlink_reload_supported(devlink->ops)) |
11227 | return -EOPNOTSUPP; | |
11228 | ||
11229 | param_item = devlink_param_find_by_id(&devlink->param_list, param_id); | |
ec01aeb1 MS |
11230 | if (!param_item) |
11231 | return -EINVAL; | |
11232 | ||
11233 | if (!param_item->driverinit_value_valid || | |
11234 | !devlink_param_cmode_is_supported(param_item->param, | |
11235 | DEVLINK_PARAM_CMODE_DRIVERINIT)) | |
11236 | return -EOPNOTSUPP; | |
11237 | ||
1276534c MS |
11238 | if (param_item->param->type == DEVLINK_PARAM_TYPE_STRING) |
11239 | strcpy(init_val->vstr, param_item->driverinit_value.vstr); | |
11240 | else | |
11241 | *init_val = param_item->driverinit_value; | |
ec01aeb1 MS |
11242 | |
11243 | return 0; | |
11244 | } | |
8ba024df | 11245 | EXPORT_SYMBOL_GPL(devlink_param_driverinit_value_get); |
ffd19b9a | 11246 | |
8ba024df LR |
11247 | /** |
11248 | * devlink_param_driverinit_value_set - set value of configuration | |
11249 | * parameter for driverinit | |
11250 | * configuration mode | |
11251 | * | |
11252 | * @devlink: devlink | |
11253 | * @param_id: parameter ID | |
11254 | * @init_val: value of parameter to set for driverinit configuration mode | |
11255 | * | |
11256 | * This function should be used by the driver to set driverinit | |
11257 | * configuration mode default value. | |
11258 | */ | |
11259 | int devlink_param_driverinit_value_set(struct devlink *devlink, u32 param_id, | |
11260 | union devlink_param_value init_val) | |
5473a7bd VV |
11261 | { |
11262 | struct devlink_param_item *param_item; | |
11263 | ||
7a690ad4 LR |
11264 | ASSERT_DEVLINK_NOT_REGISTERED(devlink); |
11265 | ||
8ba024df | 11266 | param_item = devlink_param_find_by_id(&devlink->param_list, param_id); |
5473a7bd VV |
11267 | if (!param_item) |
11268 | return -EINVAL; | |
11269 | ||
11270 | if (!devlink_param_cmode_is_supported(param_item->param, | |
11271 | DEVLINK_PARAM_CMODE_DRIVERINIT)) | |
11272 | return -EOPNOTSUPP; | |
11273 | ||
11274 | if (param_item->param->type == DEVLINK_PARAM_TYPE_STRING) | |
11275 | strcpy(param_item->driverinit_value.vstr, init_val.vstr); | |
11276 | else | |
11277 | param_item->driverinit_value = init_val; | |
11278 | param_item->driverinit_value_valid = true; | |
5473a7bd VV |
11279 | return 0; |
11280 | } | |
ec01aeb1 MS |
11281 | EXPORT_SYMBOL_GPL(devlink_param_driverinit_value_set); |
11282 | ||
ea601e17 MS |
11283 | /** |
11284 | * devlink_param_value_changed - notify devlink on a parameter's value | |
11285 | * change. Should be called by the driver | |
11286 | * right after the change. | |
11287 | * | |
11288 | * @devlink: devlink | |
11289 | * @param_id: parameter ID | |
11290 | * | |
11291 | * This function should be used by the driver to notify devlink on value | |
11292 | * change, excluding driverinit configuration mode. | |
11293 | * For driverinit configuration mode driver should use the function | |
ea601e17 MS |
11294 | */ |
11295 | void devlink_param_value_changed(struct devlink *devlink, u32 param_id) | |
11296 | { | |
11297 | struct devlink_param_item *param_item; | |
11298 | ||
11299 | param_item = devlink_param_find_by_id(&devlink->param_list, param_id); | |
11300 | WARN_ON(!param_item); | |
11301 | ||
c1e5786d | 11302 | devlink_param_notify(devlink, 0, param_item, DEVLINK_CMD_PARAM_NEW); |
ea601e17 MS |
11303 | } |
11304 | EXPORT_SYMBOL_GPL(devlink_param_value_changed); | |
11305 | ||
b16ebe92 | 11306 | /** |
eb0e9fa2 | 11307 | * devl_region_create - create a new address region |
b16ebe92 | 11308 | * |
eb0e9fa2 JP |
11309 | * @devlink: devlink |
11310 | * @ops: region operations and name | |
11311 | * @region_max_snapshots: Maximum supported number of snapshots for region | |
11312 | * @region_size: size of region | |
b16ebe92 | 11313 | */ |
eb0e9fa2 JP |
11314 | struct devlink_region *devl_region_create(struct devlink *devlink, |
11315 | const struct devlink_region_ops *ops, | |
11316 | u32 region_max_snapshots, | |
11317 | u64 region_size) | |
b16ebe92 AV |
11318 | { |
11319 | struct devlink_region *region; | |
eb0e9fa2 JP |
11320 | |
11321 | devl_assert_locked(devlink); | |
b16ebe92 | 11322 | |
a0a09f6b JK |
11323 | if (WARN_ON(!ops) || WARN_ON(!ops->destructor)) |
11324 | return ERR_PTR(-EINVAL); | |
11325 | ||
eb0e9fa2 JP |
11326 | if (devlink_region_get_by_name(devlink, ops->name)) |
11327 | return ERR_PTR(-EEXIST); | |
b16ebe92 AV |
11328 | |
11329 | region = kzalloc(sizeof(*region), GFP_KERNEL); | |
eb0e9fa2 JP |
11330 | if (!region) |
11331 | return ERR_PTR(-ENOMEM); | |
b16ebe92 AV |
11332 | |
11333 | region->devlink = devlink; | |
11334 | region->max_snapshots = region_max_snapshots; | |
e8937681 | 11335 | region->ops = ops; |
b16ebe92 AV |
11336 | region->size = region_size; |
11337 | INIT_LIST_HEAD(®ion->snapshot_list); | |
2dec18ad | 11338 | mutex_init(®ion->snapshot_lock); |
b16ebe92 | 11339 | list_add_tail(®ion->list, &devlink->region_list); |
866319bb | 11340 | devlink_nl_region_notify(region, NULL, DEVLINK_CMD_REGION_NEW); |
b16ebe92 | 11341 | |
b16ebe92 | 11342 | return region; |
eb0e9fa2 JP |
11343 | } |
11344 | EXPORT_SYMBOL_GPL(devl_region_create); | |
b16ebe92 | 11345 | |
eb0e9fa2 JP |
11346 | /** |
11347 | * devlink_region_create - create a new address region | |
11348 | * | |
11349 | * @devlink: devlink | |
11350 | * @ops: region operations and name | |
11351 | * @region_max_snapshots: Maximum supported number of snapshots for region | |
11352 | * @region_size: size of region | |
11353 | * | |
11354 | * Context: Takes and release devlink->lock <mutex>. | |
11355 | */ | |
11356 | struct devlink_region * | |
11357 | devlink_region_create(struct devlink *devlink, | |
11358 | const struct devlink_region_ops *ops, | |
11359 | u32 region_max_snapshots, u64 region_size) | |
11360 | { | |
11361 | struct devlink_region *region; | |
11362 | ||
11363 | devl_lock(devlink); | |
11364 | region = devl_region_create(devlink, ops, region_max_snapshots, | |
11365 | region_size); | |
7715023a | 11366 | devl_unlock(devlink); |
eb0e9fa2 | 11367 | return region; |
b16ebe92 AV |
11368 | } |
11369 | EXPORT_SYMBOL_GPL(devlink_region_create); | |
11370 | ||
544e7c33 AL |
11371 | /** |
11372 | * devlink_port_region_create - create a new address region for a port | |
11373 | * | |
11374 | * @port: devlink port | |
11375 | * @ops: region operations and name | |
11376 | * @region_max_snapshots: Maximum supported number of snapshots for region | |
11377 | * @region_size: size of region | |
eb0e9fa2 JP |
11378 | * |
11379 | * Context: Takes and release devlink->lock <mutex>. | |
544e7c33 AL |
11380 | */ |
11381 | struct devlink_region * | |
11382 | devlink_port_region_create(struct devlink_port *port, | |
11383 | const struct devlink_port_region_ops *ops, | |
11384 | u32 region_max_snapshots, u64 region_size) | |
11385 | { | |
11386 | struct devlink *devlink = port->devlink; | |
11387 | struct devlink_region *region; | |
11388 | int err = 0; | |
11389 | ||
11390 | if (WARN_ON(!ops) || WARN_ON(!ops->destructor)) | |
11391 | return ERR_PTR(-EINVAL); | |
11392 | ||
7715023a | 11393 | devl_lock(devlink); |
544e7c33 AL |
11394 | |
11395 | if (devlink_port_region_get_by_name(port, ops->name)) { | |
11396 | err = -EEXIST; | |
11397 | goto unlock; | |
11398 | } | |
11399 | ||
11400 | region = kzalloc(sizeof(*region), GFP_KERNEL); | |
11401 | if (!region) { | |
11402 | err = -ENOMEM; | |
11403 | goto unlock; | |
11404 | } | |
11405 | ||
11406 | region->devlink = devlink; | |
11407 | region->port = port; | |
11408 | region->max_snapshots = region_max_snapshots; | |
11409 | region->port_ops = ops; | |
11410 | region->size = region_size; | |
11411 | INIT_LIST_HEAD(®ion->snapshot_list); | |
2dec18ad | 11412 | mutex_init(®ion->snapshot_lock); |
544e7c33 AL |
11413 | list_add_tail(®ion->list, &port->region_list); |
11414 | devlink_nl_region_notify(region, NULL, DEVLINK_CMD_REGION_NEW); | |
11415 | ||
7715023a | 11416 | devl_unlock(devlink); |
544e7c33 AL |
11417 | return region; |
11418 | ||
11419 | unlock: | |
7715023a | 11420 | devl_unlock(devlink); |
544e7c33 AL |
11421 | return ERR_PTR(err); |
11422 | } | |
11423 | EXPORT_SYMBOL_GPL(devlink_port_region_create); | |
11424 | ||
b16ebe92 | 11425 | /** |
eb0e9fa2 | 11426 | * devl_region_destroy - destroy address region |
b16ebe92 | 11427 | * |
eb0e9fa2 | 11428 | * @region: devlink region to destroy |
b16ebe92 | 11429 | */ |
eb0e9fa2 | 11430 | void devl_region_destroy(struct devlink_region *region) |
b16ebe92 AV |
11431 | { |
11432 | struct devlink *devlink = region->devlink; | |
d7e52722 | 11433 | struct devlink_snapshot *snapshot, *ts; |
b16ebe92 | 11434 | |
eb0e9fa2 | 11435 | devl_assert_locked(devlink); |
d7e52722 AV |
11436 | |
11437 | /* Free all snapshots of region */ | |
11438 | list_for_each_entry_safe(snapshot, ts, ®ion->snapshot_list, list) | |
92b49822 | 11439 | devlink_region_snapshot_del(region, snapshot); |
d7e52722 | 11440 | |
b16ebe92 | 11441 | list_del(®ion->list); |
2dec18ad | 11442 | mutex_destroy(®ion->snapshot_lock); |
866319bb AV |
11443 | |
11444 | devlink_nl_region_notify(region, NULL, DEVLINK_CMD_REGION_DEL); | |
b16ebe92 AV |
11445 | kfree(region); |
11446 | } | |
eb0e9fa2 JP |
11447 | EXPORT_SYMBOL_GPL(devl_region_destroy); |
11448 | ||
11449 | /** | |
11450 | * devlink_region_destroy - destroy address region | |
11451 | * | |
11452 | * @region: devlink region to destroy | |
11453 | * | |
11454 | * Context: Takes and release devlink->lock <mutex>. | |
11455 | */ | |
11456 | void devlink_region_destroy(struct devlink_region *region) | |
11457 | { | |
11458 | struct devlink *devlink = region->devlink; | |
11459 | ||
11460 | devl_lock(devlink); | |
11461 | devl_region_destroy(region); | |
11462 | devl_unlock(devlink); | |
11463 | } | |
b16ebe92 AV |
11464 | EXPORT_SYMBOL_GPL(devlink_region_destroy); |
11465 | ||
ccadfa44 | 11466 | /** |
b0efcae5 | 11467 | * devlink_region_snapshot_id_get - get snapshot ID |
ccadfa44 AV |
11468 | * |
11469 | * This callback should be called when adding a new snapshot, | |
11470 | * Driver should use the same id for multiple snapshots taken | |
11471 | * on multiple regions at the same time/by the same trigger. | |
11472 | * | |
12102436 JK |
11473 | * The caller of this function must use devlink_region_snapshot_id_put |
11474 | * when finished creating regions using this id. | |
11475 | * | |
7ef19d3b JK |
11476 | * Returns zero on success, or a negative error code on failure. |
11477 | * | |
ccadfa44 | 11478 | * @devlink: devlink |
7ef19d3b | 11479 | * @id: storage to return id |
ccadfa44 | 11480 | */ |
7ef19d3b | 11481 | int devlink_region_snapshot_id_get(struct devlink *devlink, u32 *id) |
ccadfa44 | 11482 | { |
5502e871 | 11483 | return __devlink_region_snapshot_id_get(devlink, id); |
ccadfa44 | 11484 | } |
b0efcae5 | 11485 | EXPORT_SYMBOL_GPL(devlink_region_snapshot_id_get); |
ccadfa44 | 11486 | |
12102436 JK |
11487 | /** |
11488 | * devlink_region_snapshot_id_put - put snapshot ID reference | |
11489 | * | |
11490 | * This should be called by a driver after finishing creating snapshots | |
11491 | * with an id. Doing so ensures that the ID can later be released in the | |
11492 | * event that all snapshots using it have been destroyed. | |
11493 | * | |
11494 | * @devlink: devlink | |
11495 | * @id: id to release reference on | |
11496 | */ | |
11497 | void devlink_region_snapshot_id_put(struct devlink *devlink, u32 id) | |
11498 | { | |
12102436 | 11499 | __devlink_snapshot_id_decrement(devlink, id); |
12102436 JK |
11500 | } |
11501 | EXPORT_SYMBOL_GPL(devlink_region_snapshot_id_put); | |
11502 | ||
d7e52722 AV |
11503 | /** |
11504 | * devlink_region_snapshot_create - create a new snapshot | |
11505 | * This will add a new snapshot of a region. The snapshot | |
11506 | * will be stored on the region struct and can be accessed | |
6d82f67e | 11507 | * from devlink. This is useful for future analyses of snapshots. |
d7e52722 AV |
11508 | * Multiple snapshots can be created on a region. |
11509 | * The @snapshot_id should be obtained using the getter function. | |
11510 | * | |
eeaadd82 | 11511 | * @region: devlink region of the snapshot |
d7e52722 AV |
11512 | * @data: snapshot data |
11513 | * @snapshot_id: snapshot id to be created | |
d7e52722 | 11514 | */ |
3a5e5234 | 11515 | int devlink_region_snapshot_create(struct devlink_region *region, |
a0a09f6b | 11516 | u8 *data, u32 snapshot_id) |
d7e52722 | 11517 | { |
d7e52722 AV |
11518 | int err; |
11519 | ||
2dec18ad | 11520 | mutex_lock(®ion->snapshot_lock); |
cf80faee | 11521 | err = __devlink_region_snapshot_create(region, data, snapshot_id); |
2dec18ad | 11522 | mutex_unlock(®ion->snapshot_lock); |
d7e52722 AV |
11523 | return err; |
11524 | } | |
11525 | EXPORT_SYMBOL_GPL(devlink_region_snapshot_create); | |
11526 | ||
0f420b6c IS |
11527 | #define DEVLINK_TRAP(_id, _type) \ |
11528 | { \ | |
11529 | .type = DEVLINK_TRAP_TYPE_##_type, \ | |
11530 | .id = DEVLINK_TRAP_GENERIC_ID_##_id, \ | |
11531 | .name = DEVLINK_TRAP_GENERIC_NAME_##_id, \ | |
11532 | } | |
11533 | ||
11534 | static const struct devlink_trap devlink_trap_generic[] = { | |
391203ab IS |
11535 | DEVLINK_TRAP(SMAC_MC, DROP), |
11536 | DEVLINK_TRAP(VLAN_TAG_MISMATCH, DROP), | |
11537 | DEVLINK_TRAP(INGRESS_VLAN_FILTER, DROP), | |
11538 | DEVLINK_TRAP(INGRESS_STP_FILTER, DROP), | |
11539 | DEVLINK_TRAP(EMPTY_TX_LIST, DROP), | |
11540 | DEVLINK_TRAP(PORT_LOOPBACK_FILTER, DROP), | |
11541 | DEVLINK_TRAP(BLACKHOLE_ROUTE, DROP), | |
11542 | DEVLINK_TRAP(TTL_ERROR, EXCEPTION), | |
11543 | DEVLINK_TRAP(TAIL_DROP, DROP), | |
6896cc4d AC |
11544 | DEVLINK_TRAP(NON_IP_PACKET, DROP), |
11545 | DEVLINK_TRAP(UC_DIP_MC_DMAC, DROP), | |
11546 | DEVLINK_TRAP(DIP_LB, DROP), | |
11547 | DEVLINK_TRAP(SIP_MC, DROP), | |
11548 | DEVLINK_TRAP(SIP_LB, DROP), | |
11549 | DEVLINK_TRAP(CORRUPTED_IP_HDR, DROP), | |
11550 | DEVLINK_TRAP(IPV4_SIP_BC, DROP), | |
11551 | DEVLINK_TRAP(IPV6_MC_DIP_RESERVED_SCOPE, DROP), | |
11552 | DEVLINK_TRAP(IPV6_MC_DIP_INTERFACE_LOCAL_SCOPE, DROP), | |
3b063ae5 AC |
11553 | DEVLINK_TRAP(MTU_ERROR, EXCEPTION), |
11554 | DEVLINK_TRAP(UNRESOLVED_NEIGH, EXCEPTION), | |
11555 | DEVLINK_TRAP(RPF, EXCEPTION), | |
11556 | DEVLINK_TRAP(REJECT_ROUTE, EXCEPTION), | |
11557 | DEVLINK_TRAP(IPV4_LPM_UNICAST_MISS, EXCEPTION), | |
11558 | DEVLINK_TRAP(IPV6_LPM_UNICAST_MISS, EXCEPTION), | |
95f0ead8 | 11559 | DEVLINK_TRAP(NON_ROUTABLE, DROP), |
13c056ec | 11560 | DEVLINK_TRAP(DECAP_ERROR, EXCEPTION), |
c3cae491 | 11561 | DEVLINK_TRAP(OVERLAY_SMAC_MC, DROP), |
ecd942a0 JP |
11562 | DEVLINK_TRAP(INGRESS_FLOW_ACTION_DROP, DROP), |
11563 | DEVLINK_TRAP(EGRESS_FLOW_ACTION_DROP, DROP), | |
515eac67 IS |
11564 | DEVLINK_TRAP(STP, CONTROL), |
11565 | DEVLINK_TRAP(LACP, CONTROL), | |
11566 | DEVLINK_TRAP(LLDP, CONTROL), | |
11567 | DEVLINK_TRAP(IGMP_QUERY, CONTROL), | |
11568 | DEVLINK_TRAP(IGMP_V1_REPORT, CONTROL), | |
11569 | DEVLINK_TRAP(IGMP_V2_REPORT, CONTROL), | |
11570 | DEVLINK_TRAP(IGMP_V3_REPORT, CONTROL), | |
11571 | DEVLINK_TRAP(IGMP_V2_LEAVE, CONTROL), | |
11572 | DEVLINK_TRAP(MLD_QUERY, CONTROL), | |
11573 | DEVLINK_TRAP(MLD_V1_REPORT, CONTROL), | |
11574 | DEVLINK_TRAP(MLD_V2_REPORT, CONTROL), | |
11575 | DEVLINK_TRAP(MLD_V1_DONE, CONTROL), | |
d77cfd16 IS |
11576 | DEVLINK_TRAP(IPV4_DHCP, CONTROL), |
11577 | DEVLINK_TRAP(IPV6_DHCP, CONTROL), | |
11578 | DEVLINK_TRAP(ARP_REQUEST, CONTROL), | |
11579 | DEVLINK_TRAP(ARP_RESPONSE, CONTROL), | |
11580 | DEVLINK_TRAP(ARP_OVERLAY, CONTROL), | |
11581 | DEVLINK_TRAP(IPV6_NEIGH_SOLICIT, CONTROL), | |
11582 | DEVLINK_TRAP(IPV6_NEIGH_ADVERT, CONTROL), | |
11583 | DEVLINK_TRAP(IPV4_BFD, CONTROL), | |
11584 | DEVLINK_TRAP(IPV6_BFD, CONTROL), | |
11585 | DEVLINK_TRAP(IPV4_OSPF, CONTROL), | |
11586 | DEVLINK_TRAP(IPV6_OSPF, CONTROL), | |
11587 | DEVLINK_TRAP(IPV4_BGP, CONTROL), | |
11588 | DEVLINK_TRAP(IPV6_BGP, CONTROL), | |
11589 | DEVLINK_TRAP(IPV4_VRRP, CONTROL), | |
11590 | DEVLINK_TRAP(IPV6_VRRP, CONTROL), | |
11591 | DEVLINK_TRAP(IPV4_PIM, CONTROL), | |
11592 | DEVLINK_TRAP(IPV6_PIM, CONTROL), | |
11593 | DEVLINK_TRAP(UC_LB, CONTROL), | |
11594 | DEVLINK_TRAP(LOCAL_ROUTE, CONTROL), | |
11595 | DEVLINK_TRAP(EXTERNAL_ROUTE, CONTROL), | |
11596 | DEVLINK_TRAP(IPV6_UC_DIP_LINK_LOCAL_SCOPE, CONTROL), | |
11597 | DEVLINK_TRAP(IPV6_DIP_ALL_NODES, CONTROL), | |
11598 | DEVLINK_TRAP(IPV6_DIP_ALL_ROUTERS, CONTROL), | |
11599 | DEVLINK_TRAP(IPV6_ROUTER_SOLICIT, CONTROL), | |
11600 | DEVLINK_TRAP(IPV6_ROUTER_ADVERT, CONTROL), | |
11601 | DEVLINK_TRAP(IPV6_REDIRECT, CONTROL), | |
11602 | DEVLINK_TRAP(IPV4_ROUTER_ALERT, CONTROL), | |
11603 | DEVLINK_TRAP(IPV6_ROUTER_ALERT, CONTROL), | |
11604 | DEVLINK_TRAP(PTP_EVENT, CONTROL), | |
11605 | DEVLINK_TRAP(PTP_GENERAL, CONTROL), | |
5eb18a2b IS |
11606 | DEVLINK_TRAP(FLOW_ACTION_SAMPLE, CONTROL), |
11607 | DEVLINK_TRAP(FLOW_ACTION_TRAP, CONTROL), | |
08e335f6 | 11608 | DEVLINK_TRAP(EARLY_DROP, DROP), |
10c24eb2 IC |
11609 | DEVLINK_TRAP(VXLAN_PARSING, DROP), |
11610 | DEVLINK_TRAP(LLC_SNAP_PARSING, DROP), | |
11611 | DEVLINK_TRAP(VLAN_PARSING, DROP), | |
11612 | DEVLINK_TRAP(PPPOE_PPP_PARSING, DROP), | |
11613 | DEVLINK_TRAP(MPLS_PARSING, DROP), | |
11614 | DEVLINK_TRAP(ARP_PARSING, DROP), | |
11615 | DEVLINK_TRAP(IP_1_PARSING, DROP), | |
11616 | DEVLINK_TRAP(IP_N_PARSING, DROP), | |
11617 | DEVLINK_TRAP(GRE_PARSING, DROP), | |
11618 | DEVLINK_TRAP(UDP_PARSING, DROP), | |
11619 | DEVLINK_TRAP(TCP_PARSING, DROP), | |
11620 | DEVLINK_TRAP(IPSEC_PARSING, DROP), | |
11621 | DEVLINK_TRAP(SCTP_PARSING, DROP), | |
11622 | DEVLINK_TRAP(DCCP_PARSING, DROP), | |
11623 | DEVLINK_TRAP(GTP_PARSING, DROP), | |
11624 | DEVLINK_TRAP(ESP_PARSING, DROP), | |
f0a5013e | 11625 | DEVLINK_TRAP(BLACKHOLE_NEXTHOP, DROP), |
e78ab164 | 11626 | DEVLINK_TRAP(DMAC_FILTER, DROP), |
0f420b6c IS |
11627 | }; |
11628 | ||
11629 | #define DEVLINK_TRAP_GROUP(_id) \ | |
11630 | { \ | |
11631 | .id = DEVLINK_TRAP_GROUP_GENERIC_ID_##_id, \ | |
11632 | .name = DEVLINK_TRAP_GROUP_GENERIC_NAME_##_id, \ | |
11633 | } | |
11634 | ||
11635 | static const struct devlink_trap_group devlink_trap_group_generic[] = { | |
391203ab IS |
11636 | DEVLINK_TRAP_GROUP(L2_DROPS), |
11637 | DEVLINK_TRAP_GROUP(L3_DROPS), | |
678eb199 | 11638 | DEVLINK_TRAP_GROUP(L3_EXCEPTIONS), |
391203ab | 11639 | DEVLINK_TRAP_GROUP(BUFFER_DROPS), |
13c056ec | 11640 | DEVLINK_TRAP_GROUP(TUNNEL_DROPS), |
ecd942a0 | 11641 | DEVLINK_TRAP_GROUP(ACL_DROPS), |
515eac67 IS |
11642 | DEVLINK_TRAP_GROUP(STP), |
11643 | DEVLINK_TRAP_GROUP(LACP), | |
11644 | DEVLINK_TRAP_GROUP(LLDP), | |
11645 | DEVLINK_TRAP_GROUP(MC_SNOOPING), | |
d77cfd16 IS |
11646 | DEVLINK_TRAP_GROUP(DHCP), |
11647 | DEVLINK_TRAP_GROUP(NEIGH_DISCOVERY), | |
11648 | DEVLINK_TRAP_GROUP(BFD), | |
11649 | DEVLINK_TRAP_GROUP(OSPF), | |
11650 | DEVLINK_TRAP_GROUP(BGP), | |
11651 | DEVLINK_TRAP_GROUP(VRRP), | |
11652 | DEVLINK_TRAP_GROUP(PIM), | |
11653 | DEVLINK_TRAP_GROUP(UC_LB), | |
11654 | DEVLINK_TRAP_GROUP(LOCAL_DELIVERY), | |
ec4f5b36 | 11655 | DEVLINK_TRAP_GROUP(EXTERNAL_DELIVERY), |
d77cfd16 IS |
11656 | DEVLINK_TRAP_GROUP(IPV6), |
11657 | DEVLINK_TRAP_GROUP(PTP_EVENT), | |
11658 | DEVLINK_TRAP_GROUP(PTP_GENERAL), | |
5eb18a2b IS |
11659 | DEVLINK_TRAP_GROUP(ACL_SAMPLE), |
11660 | DEVLINK_TRAP_GROUP(ACL_TRAP), | |
10c24eb2 | 11661 | DEVLINK_TRAP_GROUP(PARSER_ERROR_DROPS), |
0f420b6c IS |
11662 | }; |
11663 | ||
11664 | static int devlink_trap_generic_verify(const struct devlink_trap *trap) | |
11665 | { | |
11666 | if (trap->id > DEVLINK_TRAP_GENERIC_ID_MAX) | |
11667 | return -EINVAL; | |
11668 | ||
11669 | if (strcmp(trap->name, devlink_trap_generic[trap->id].name)) | |
11670 | return -EINVAL; | |
11671 | ||
11672 | if (trap->type != devlink_trap_generic[trap->id].type) | |
11673 | return -EINVAL; | |
11674 | ||
11675 | return 0; | |
11676 | } | |
11677 | ||
11678 | static int devlink_trap_driver_verify(const struct devlink_trap *trap) | |
11679 | { | |
11680 | int i; | |
11681 | ||
11682 | if (trap->id <= DEVLINK_TRAP_GENERIC_ID_MAX) | |
11683 | return -EINVAL; | |
11684 | ||
11685 | for (i = 0; i < ARRAY_SIZE(devlink_trap_generic); i++) { | |
11686 | if (!strcmp(trap->name, devlink_trap_generic[i].name)) | |
11687 | return -EEXIST; | |
11688 | } | |
11689 | ||
11690 | return 0; | |
11691 | } | |
11692 | ||
11693 | static int devlink_trap_verify(const struct devlink_trap *trap) | |
11694 | { | |
107f1678 | 11695 | if (!trap || !trap->name) |
0f420b6c IS |
11696 | return -EINVAL; |
11697 | ||
11698 | if (trap->generic) | |
11699 | return devlink_trap_generic_verify(trap); | |
11700 | else | |
11701 | return devlink_trap_driver_verify(trap); | |
11702 | } | |
11703 | ||
11704 | static int | |
11705 | devlink_trap_group_generic_verify(const struct devlink_trap_group *group) | |
11706 | { | |
11707 | if (group->id > DEVLINK_TRAP_GROUP_GENERIC_ID_MAX) | |
11708 | return -EINVAL; | |
11709 | ||
11710 | if (strcmp(group->name, devlink_trap_group_generic[group->id].name)) | |
11711 | return -EINVAL; | |
11712 | ||
11713 | return 0; | |
11714 | } | |
11715 | ||
11716 | static int | |
11717 | devlink_trap_group_driver_verify(const struct devlink_trap_group *group) | |
11718 | { | |
11719 | int i; | |
11720 | ||
11721 | if (group->id <= DEVLINK_TRAP_GROUP_GENERIC_ID_MAX) | |
11722 | return -EINVAL; | |
11723 | ||
11724 | for (i = 0; i < ARRAY_SIZE(devlink_trap_group_generic); i++) { | |
11725 | if (!strcmp(group->name, devlink_trap_group_generic[i].name)) | |
11726 | return -EEXIST; | |
11727 | } | |
11728 | ||
11729 | return 0; | |
11730 | } | |
11731 | ||
11732 | static int devlink_trap_group_verify(const struct devlink_trap_group *group) | |
11733 | { | |
11734 | if (group->generic) | |
11735 | return devlink_trap_group_generic_verify(group); | |
11736 | else | |
11737 | return devlink_trap_group_driver_verify(group); | |
11738 | } | |
11739 | ||
11740 | static void | |
11741 | devlink_trap_group_notify(struct devlink *devlink, | |
11742 | const struct devlink_trap_group_item *group_item, | |
11743 | enum devlink_command cmd) | |
11744 | { | |
11745 | struct sk_buff *msg; | |
11746 | int err; | |
11747 | ||
11748 | WARN_ON_ONCE(cmd != DEVLINK_CMD_TRAP_GROUP_NEW && | |
11749 | cmd != DEVLINK_CMD_TRAP_GROUP_DEL); | |
fb9d19c2 LR |
11750 | if (!xa_get_mark(&devlinks, devlink->index, DEVLINK_REGISTERED)) |
11751 | return; | |
0f420b6c IS |
11752 | |
11753 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
11754 | if (!msg) | |
11755 | return; | |
11756 | ||
11757 | err = devlink_nl_trap_group_fill(msg, devlink, group_item, cmd, 0, 0, | |
11758 | 0); | |
11759 | if (err) { | |
11760 | nlmsg_free(msg); | |
11761 | return; | |
11762 | } | |
11763 | ||
11764 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), | |
11765 | msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
11766 | } | |
11767 | ||
0f420b6c IS |
11768 | static int |
11769 | devlink_trap_item_group_link(struct devlink *devlink, | |
11770 | struct devlink_trap_item *trap_item) | |
11771 | { | |
107f1678 | 11772 | u16 group_id = trap_item->trap->init_group_id; |
0f420b6c IS |
11773 | struct devlink_trap_group_item *group_item; |
11774 | ||
107f1678 | 11775 | group_item = devlink_trap_group_item_lookup_by_id(devlink, group_id); |
a09b37fc IS |
11776 | if (WARN_ON_ONCE(!group_item)) |
11777 | return -EINVAL; | |
0f420b6c IS |
11778 | |
11779 | trap_item->group_item = group_item; | |
11780 | ||
11781 | return 0; | |
11782 | } | |
11783 | ||
0f420b6c IS |
11784 | static void devlink_trap_notify(struct devlink *devlink, |
11785 | const struct devlink_trap_item *trap_item, | |
11786 | enum devlink_command cmd) | |
11787 | { | |
11788 | struct sk_buff *msg; | |
11789 | int err; | |
11790 | ||
11791 | WARN_ON_ONCE(cmd != DEVLINK_CMD_TRAP_NEW && | |
11792 | cmd != DEVLINK_CMD_TRAP_DEL); | |
cf530217 LR |
11793 | if (!xa_get_mark(&devlinks, devlink->index, DEVLINK_REGISTERED)) |
11794 | return; | |
0f420b6c IS |
11795 | |
11796 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
11797 | if (!msg) | |
11798 | return; | |
11799 | ||
11800 | err = devlink_nl_trap_fill(msg, devlink, trap_item, cmd, 0, 0, 0); | |
11801 | if (err) { | |
11802 | nlmsg_free(msg); | |
11803 | return; | |
11804 | } | |
11805 | ||
11806 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), | |
11807 | msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
11808 | } | |
11809 | ||
11810 | static int | |
11811 | devlink_trap_register(struct devlink *devlink, | |
11812 | const struct devlink_trap *trap, void *priv) | |
11813 | { | |
11814 | struct devlink_trap_item *trap_item; | |
11815 | int err; | |
11816 | ||
11817 | if (devlink_trap_item_lookup(devlink, trap->name)) | |
11818 | return -EEXIST; | |
11819 | ||
11820 | trap_item = kzalloc(sizeof(*trap_item), GFP_KERNEL); | |
11821 | if (!trap_item) | |
11822 | return -ENOMEM; | |
11823 | ||
11824 | trap_item->stats = netdev_alloc_pcpu_stats(struct devlink_stats); | |
11825 | if (!trap_item->stats) { | |
11826 | err = -ENOMEM; | |
11827 | goto err_stats_alloc; | |
11828 | } | |
11829 | ||
11830 | trap_item->trap = trap; | |
11831 | trap_item->action = trap->init_action; | |
11832 | trap_item->priv = priv; | |
11833 | ||
11834 | err = devlink_trap_item_group_link(devlink, trap_item); | |
11835 | if (err) | |
11836 | goto err_group_link; | |
11837 | ||
11838 | err = devlink->ops->trap_init(devlink, trap, trap_item); | |
11839 | if (err) | |
11840 | goto err_trap_init; | |
11841 | ||
11842 | list_add_tail(&trap_item->list, &devlink->trap_list); | |
11843 | devlink_trap_notify(devlink, trap_item, DEVLINK_CMD_TRAP_NEW); | |
11844 | ||
11845 | return 0; | |
11846 | ||
11847 | err_trap_init: | |
0f420b6c IS |
11848 | err_group_link: |
11849 | free_percpu(trap_item->stats); | |
11850 | err_stats_alloc: | |
11851 | kfree(trap_item); | |
11852 | return err; | |
11853 | } | |
11854 | ||
11855 | static void devlink_trap_unregister(struct devlink *devlink, | |
11856 | const struct devlink_trap *trap) | |
11857 | { | |
11858 | struct devlink_trap_item *trap_item; | |
11859 | ||
11860 | trap_item = devlink_trap_item_lookup(devlink, trap->name); | |
11861 | if (WARN_ON_ONCE(!trap_item)) | |
11862 | return; | |
11863 | ||
11864 | devlink_trap_notify(devlink, trap_item, DEVLINK_CMD_TRAP_DEL); | |
11865 | list_del(&trap_item->list); | |
11866 | if (devlink->ops->trap_fini) | |
11867 | devlink->ops->trap_fini(devlink, trap, trap_item); | |
0f420b6c IS |
11868 | free_percpu(trap_item->stats); |
11869 | kfree(trap_item); | |
11870 | } | |
11871 | ||
11872 | static void devlink_trap_disable(struct devlink *devlink, | |
11873 | const struct devlink_trap *trap) | |
11874 | { | |
11875 | struct devlink_trap_item *trap_item; | |
11876 | ||
11877 | trap_item = devlink_trap_item_lookup(devlink, trap->name); | |
11878 | if (WARN_ON_ONCE(!trap_item)) | |
11879 | return; | |
11880 | ||
c88e11e0 IS |
11881 | devlink->ops->trap_action_set(devlink, trap, DEVLINK_TRAP_ACTION_DROP, |
11882 | NULL); | |
0f420b6c IS |
11883 | trap_item->action = DEVLINK_TRAP_ACTION_DROP; |
11884 | } | |
11885 | ||
11886 | /** | |
852e85a7 | 11887 | * devl_traps_register - Register packet traps with devlink. |
0f420b6c IS |
11888 | * @devlink: devlink. |
11889 | * @traps: Packet traps. | |
11890 | * @traps_count: Count of provided packet traps. | |
11891 | * @priv: Driver private information. | |
11892 | * | |
11893 | * Return: Non-zero value on failure. | |
11894 | */ | |
852e85a7 JP |
11895 | int devl_traps_register(struct devlink *devlink, |
11896 | const struct devlink_trap *traps, | |
11897 | size_t traps_count, void *priv) | |
0f420b6c IS |
11898 | { |
11899 | int i, err; | |
11900 | ||
11901 | if (!devlink->ops->trap_init || !devlink->ops->trap_action_set) | |
11902 | return -EINVAL; | |
11903 | ||
852e85a7 | 11904 | devl_assert_locked(devlink); |
0f420b6c IS |
11905 | for (i = 0; i < traps_count; i++) { |
11906 | const struct devlink_trap *trap = &traps[i]; | |
11907 | ||
11908 | err = devlink_trap_verify(trap); | |
11909 | if (err) | |
11910 | goto err_trap_verify; | |
11911 | ||
11912 | err = devlink_trap_register(devlink, trap, priv); | |
11913 | if (err) | |
11914 | goto err_trap_register; | |
11915 | } | |
0f420b6c IS |
11916 | |
11917 | return 0; | |
11918 | ||
11919 | err_trap_register: | |
11920 | err_trap_verify: | |
11921 | for (i--; i >= 0; i--) | |
11922 | devlink_trap_unregister(devlink, &traps[i]); | |
852e85a7 JP |
11923 | return err; |
11924 | } | |
11925 | EXPORT_SYMBOL_GPL(devl_traps_register); | |
11926 | ||
11927 | /** | |
11928 | * devlink_traps_register - Register packet traps with devlink. | |
11929 | * @devlink: devlink. | |
11930 | * @traps: Packet traps. | |
11931 | * @traps_count: Count of provided packet traps. | |
11932 | * @priv: Driver private information. | |
11933 | * | |
11934 | * Context: Takes and release devlink->lock <mutex>. | |
11935 | * | |
11936 | * Return: Non-zero value on failure. | |
11937 | */ | |
11938 | int devlink_traps_register(struct devlink *devlink, | |
11939 | const struct devlink_trap *traps, | |
11940 | size_t traps_count, void *priv) | |
11941 | { | |
11942 | int err; | |
11943 | ||
11944 | devl_lock(devlink); | |
11945 | err = devl_traps_register(devlink, traps, traps_count, priv); | |
7715023a | 11946 | devl_unlock(devlink); |
0f420b6c IS |
11947 | return err; |
11948 | } | |
11949 | EXPORT_SYMBOL_GPL(devlink_traps_register); | |
11950 | ||
11951 | /** | |
852e85a7 | 11952 | * devl_traps_unregister - Unregister packet traps from devlink. |
0f420b6c IS |
11953 | * @devlink: devlink. |
11954 | * @traps: Packet traps. | |
11955 | * @traps_count: Count of provided packet traps. | |
11956 | */ | |
852e85a7 JP |
11957 | void devl_traps_unregister(struct devlink *devlink, |
11958 | const struct devlink_trap *traps, | |
11959 | size_t traps_count) | |
0f420b6c IS |
11960 | { |
11961 | int i; | |
11962 | ||
852e85a7 | 11963 | devl_assert_locked(devlink); |
0f420b6c IS |
11964 | /* Make sure we do not have any packets in-flight while unregistering |
11965 | * traps by disabling all of them and waiting for a grace period. | |
11966 | */ | |
11967 | for (i = traps_count - 1; i >= 0; i--) | |
11968 | devlink_trap_disable(devlink, &traps[i]); | |
11969 | synchronize_rcu(); | |
11970 | for (i = traps_count - 1; i >= 0; i--) | |
11971 | devlink_trap_unregister(devlink, &traps[i]); | |
852e85a7 JP |
11972 | } |
11973 | EXPORT_SYMBOL_GPL(devl_traps_unregister); | |
11974 | ||
11975 | /** | |
11976 | * devlink_traps_unregister - Unregister packet traps from devlink. | |
11977 | * @devlink: devlink. | |
11978 | * @traps: Packet traps. | |
11979 | * @traps_count: Count of provided packet traps. | |
11980 | * | |
11981 | * Context: Takes and release devlink->lock <mutex>. | |
11982 | */ | |
11983 | void devlink_traps_unregister(struct devlink *devlink, | |
11984 | const struct devlink_trap *traps, | |
11985 | size_t traps_count) | |
11986 | { | |
11987 | devl_lock(devlink); | |
11988 | devl_traps_unregister(devlink, traps, traps_count); | |
7715023a | 11989 | devl_unlock(devlink); |
0f420b6c IS |
11990 | } |
11991 | EXPORT_SYMBOL_GPL(devlink_traps_unregister); | |
11992 | ||
11993 | static void | |
11994 | devlink_trap_stats_update(struct devlink_stats __percpu *trap_stats, | |
11995 | size_t skb_len) | |
11996 | { | |
11997 | struct devlink_stats *stats; | |
11998 | ||
11999 | stats = this_cpu_ptr(trap_stats); | |
12000 | u64_stats_update_begin(&stats->syncp); | |
958751e0 ED |
12001 | u64_stats_add(&stats->rx_bytes, skb_len); |
12002 | u64_stats_inc(&stats->rx_packets); | |
0f420b6c IS |
12003 | u64_stats_update_end(&stats->syncp); |
12004 | } | |
12005 | ||
5b88823b IS |
12006 | static void |
12007 | devlink_trap_report_metadata_set(struct devlink_trap_metadata *metadata, | |
12008 | const struct devlink_trap_item *trap_item, | |
12009 | struct devlink_port *in_devlink_port, | |
12010 | const struct flow_action_cookie *fa_cookie) | |
12011 | { | |
12012 | metadata->trap_name = trap_item->trap->name; | |
12013 | metadata->trap_group_name = trap_item->group_item->group->name; | |
12014 | metadata->fa_cookie = fa_cookie; | |
93e15596 | 12015 | metadata->trap_type = trap_item->trap->type; |
5b88823b IS |
12016 | |
12017 | spin_lock(&in_devlink_port->type_lock); | |
12018 | if (in_devlink_port->type == DEVLINK_PORT_TYPE_ETH) | |
12019 | metadata->input_dev = in_devlink_port->type_dev; | |
12020 | spin_unlock(&in_devlink_port->type_lock); | |
12021 | } | |
12022 | ||
0f420b6c IS |
12023 | /** |
12024 | * devlink_trap_report - Report trapped packet to drop monitor. | |
12025 | * @devlink: devlink. | |
12026 | * @skb: Trapped packet. | |
12027 | * @trap_ctx: Trap context. | |
12028 | * @in_devlink_port: Input devlink port. | |
5a2e106c | 12029 | * @fa_cookie: Flow action cookie. Could be NULL. |
0f420b6c IS |
12030 | */ |
12031 | void devlink_trap_report(struct devlink *devlink, struct sk_buff *skb, | |
5a2e106c JP |
12032 | void *trap_ctx, struct devlink_port *in_devlink_port, |
12033 | const struct flow_action_cookie *fa_cookie) | |
12034 | ||
0f420b6c IS |
12035 | { |
12036 | struct devlink_trap_item *trap_item = trap_ctx; | |
0f420b6c IS |
12037 | |
12038 | devlink_trap_stats_update(trap_item->stats, skb->len); | |
12039 | devlink_trap_stats_update(trap_item->group_item->stats, skb->len); | |
12040 | ||
5b88823b IS |
12041 | if (trace_devlink_trap_report_enabled()) { |
12042 | struct devlink_trap_metadata metadata = {}; | |
12043 | ||
12044 | devlink_trap_report_metadata_set(&metadata, trap_item, | |
12045 | in_devlink_port, fa_cookie); | |
12046 | trace_devlink_trap_report(devlink, skb, &metadata); | |
12047 | } | |
0f420b6c IS |
12048 | } |
12049 | EXPORT_SYMBOL_GPL(devlink_trap_report); | |
12050 | ||
12051 | /** | |
12052 | * devlink_trap_ctx_priv - Trap context to driver private information. | |
12053 | * @trap_ctx: Trap context. | |
12054 | * | |
12055 | * Return: Driver private information passed during registration. | |
12056 | */ | |
12057 | void *devlink_trap_ctx_priv(void *trap_ctx) | |
12058 | { | |
12059 | struct devlink_trap_item *trap_item = trap_ctx; | |
12060 | ||
12061 | return trap_item->priv; | |
12062 | } | |
12063 | EXPORT_SYMBOL_GPL(devlink_trap_ctx_priv); | |
12064 | ||
f9f54392 IS |
12065 | static int |
12066 | devlink_trap_group_item_policer_link(struct devlink *devlink, | |
12067 | struct devlink_trap_group_item *group_item) | |
12068 | { | |
12069 | u32 policer_id = group_item->group->init_policer_id; | |
12070 | struct devlink_trap_policer_item *policer_item; | |
12071 | ||
12072 | if (policer_id == 0) | |
12073 | return 0; | |
12074 | ||
12075 | policer_item = devlink_trap_policer_item_lookup(devlink, policer_id); | |
12076 | if (WARN_ON_ONCE(!policer_item)) | |
12077 | return -EINVAL; | |
12078 | ||
12079 | group_item->policer_item = policer_item; | |
12080 | ||
12081 | return 0; | |
12082 | } | |
12083 | ||
95ad9555 IS |
12084 | static int |
12085 | devlink_trap_group_register(struct devlink *devlink, | |
12086 | const struct devlink_trap_group *group) | |
12087 | { | |
12088 | struct devlink_trap_group_item *group_item; | |
12089 | int err; | |
12090 | ||
12091 | if (devlink_trap_group_item_lookup(devlink, group->name)) | |
12092 | return -EEXIST; | |
12093 | ||
12094 | group_item = kzalloc(sizeof(*group_item), GFP_KERNEL); | |
12095 | if (!group_item) | |
12096 | return -ENOMEM; | |
12097 | ||
12098 | group_item->stats = netdev_alloc_pcpu_stats(struct devlink_stats); | |
12099 | if (!group_item->stats) { | |
12100 | err = -ENOMEM; | |
12101 | goto err_stats_alloc; | |
12102 | } | |
12103 | ||
12104 | group_item->group = group; | |
95ad9555 | 12105 | |
f9f54392 IS |
12106 | err = devlink_trap_group_item_policer_link(devlink, group_item); |
12107 | if (err) | |
12108 | goto err_policer_link; | |
12109 | ||
95ad9555 IS |
12110 | if (devlink->ops->trap_group_init) { |
12111 | err = devlink->ops->trap_group_init(devlink, group); | |
12112 | if (err) | |
12113 | goto err_group_init; | |
12114 | } | |
12115 | ||
12116 | list_add_tail(&group_item->list, &devlink->trap_group_list); | |
fb9d19c2 LR |
12117 | devlink_trap_group_notify(devlink, group_item, |
12118 | DEVLINK_CMD_TRAP_GROUP_NEW); | |
12119 | ||
95ad9555 IS |
12120 | return 0; |
12121 | ||
12122 | err_group_init: | |
f9f54392 | 12123 | err_policer_link: |
95ad9555 IS |
12124 | free_percpu(group_item->stats); |
12125 | err_stats_alloc: | |
12126 | kfree(group_item); | |
12127 | return err; | |
12128 | } | |
12129 | ||
12130 | static void | |
12131 | devlink_trap_group_unregister(struct devlink *devlink, | |
12132 | const struct devlink_trap_group *group) | |
12133 | { | |
12134 | struct devlink_trap_group_item *group_item; | |
12135 | ||
12136 | group_item = devlink_trap_group_item_lookup(devlink, group->name); | |
12137 | if (WARN_ON_ONCE(!group_item)) | |
12138 | return; | |
12139 | ||
fb9d19c2 LR |
12140 | devlink_trap_group_notify(devlink, group_item, |
12141 | DEVLINK_CMD_TRAP_GROUP_DEL); | |
95ad9555 IS |
12142 | list_del(&group_item->list); |
12143 | free_percpu(group_item->stats); | |
12144 | kfree(group_item); | |
12145 | } | |
12146 | ||
12147 | /** | |
852e85a7 | 12148 | * devl_trap_groups_register - Register packet trap groups with devlink. |
95ad9555 IS |
12149 | * @devlink: devlink. |
12150 | * @groups: Packet trap groups. | |
12151 | * @groups_count: Count of provided packet trap groups. | |
12152 | * | |
12153 | * Return: Non-zero value on failure. | |
12154 | */ | |
852e85a7 JP |
12155 | int devl_trap_groups_register(struct devlink *devlink, |
12156 | const struct devlink_trap_group *groups, | |
12157 | size_t groups_count) | |
95ad9555 IS |
12158 | { |
12159 | int i, err; | |
12160 | ||
852e85a7 | 12161 | devl_assert_locked(devlink); |
95ad9555 IS |
12162 | for (i = 0; i < groups_count; i++) { |
12163 | const struct devlink_trap_group *group = &groups[i]; | |
12164 | ||
12165 | err = devlink_trap_group_verify(group); | |
12166 | if (err) | |
12167 | goto err_trap_group_verify; | |
12168 | ||
12169 | err = devlink_trap_group_register(devlink, group); | |
12170 | if (err) | |
12171 | goto err_trap_group_register; | |
12172 | } | |
95ad9555 IS |
12173 | |
12174 | return 0; | |
12175 | ||
12176 | err_trap_group_register: | |
12177 | err_trap_group_verify: | |
12178 | for (i--; i >= 0; i--) | |
12179 | devlink_trap_group_unregister(devlink, &groups[i]); | |
852e85a7 JP |
12180 | return err; |
12181 | } | |
12182 | EXPORT_SYMBOL_GPL(devl_trap_groups_register); | |
12183 | ||
12184 | /** | |
12185 | * devlink_trap_groups_register - Register packet trap groups with devlink. | |
12186 | * @devlink: devlink. | |
12187 | * @groups: Packet trap groups. | |
12188 | * @groups_count: Count of provided packet trap groups. | |
12189 | * | |
12190 | * Context: Takes and release devlink->lock <mutex>. | |
12191 | * | |
12192 | * Return: Non-zero value on failure. | |
12193 | */ | |
12194 | int devlink_trap_groups_register(struct devlink *devlink, | |
12195 | const struct devlink_trap_group *groups, | |
12196 | size_t groups_count) | |
12197 | { | |
12198 | int err; | |
12199 | ||
12200 | devl_lock(devlink); | |
12201 | err = devl_trap_groups_register(devlink, groups, groups_count); | |
7715023a | 12202 | devl_unlock(devlink); |
95ad9555 IS |
12203 | return err; |
12204 | } | |
12205 | EXPORT_SYMBOL_GPL(devlink_trap_groups_register); | |
12206 | ||
852e85a7 JP |
12207 | /** |
12208 | * devl_trap_groups_unregister - Unregister packet trap groups from devlink. | |
12209 | * @devlink: devlink. | |
12210 | * @groups: Packet trap groups. | |
12211 | * @groups_count: Count of provided packet trap groups. | |
12212 | */ | |
12213 | void devl_trap_groups_unregister(struct devlink *devlink, | |
12214 | const struct devlink_trap_group *groups, | |
12215 | size_t groups_count) | |
12216 | { | |
12217 | int i; | |
12218 | ||
12219 | devl_assert_locked(devlink); | |
12220 | for (i = groups_count - 1; i >= 0; i--) | |
12221 | devlink_trap_group_unregister(devlink, &groups[i]); | |
12222 | } | |
12223 | EXPORT_SYMBOL_GPL(devl_trap_groups_unregister); | |
12224 | ||
95ad9555 IS |
12225 | /** |
12226 | * devlink_trap_groups_unregister - Unregister packet trap groups from devlink. | |
12227 | * @devlink: devlink. | |
12228 | * @groups: Packet trap groups. | |
12229 | * @groups_count: Count of provided packet trap groups. | |
852e85a7 JP |
12230 | * |
12231 | * Context: Takes and release devlink->lock <mutex>. | |
95ad9555 IS |
12232 | */ |
12233 | void devlink_trap_groups_unregister(struct devlink *devlink, | |
12234 | const struct devlink_trap_group *groups, | |
12235 | size_t groups_count) | |
12236 | { | |
7715023a | 12237 | devl_lock(devlink); |
852e85a7 | 12238 | devl_trap_groups_unregister(devlink, groups, groups_count); |
7715023a | 12239 | devl_unlock(devlink); |
95ad9555 IS |
12240 | } |
12241 | EXPORT_SYMBOL_GPL(devlink_trap_groups_unregister); | |
12242 | ||
1e8c6619 IS |
12243 | static void |
12244 | devlink_trap_policer_notify(struct devlink *devlink, | |
12245 | const struct devlink_trap_policer_item *policer_item, | |
12246 | enum devlink_command cmd) | |
12247 | { | |
12248 | struct sk_buff *msg; | |
12249 | int err; | |
12250 | ||
12251 | WARN_ON_ONCE(cmd != DEVLINK_CMD_TRAP_POLICER_NEW && | |
12252 | cmd != DEVLINK_CMD_TRAP_POLICER_DEL); | |
c5e0321e LR |
12253 | if (!xa_get_mark(&devlinks, devlink->index, DEVLINK_REGISTERED)) |
12254 | return; | |
1e8c6619 IS |
12255 | |
12256 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
12257 | if (!msg) | |
12258 | return; | |
12259 | ||
12260 | err = devlink_nl_trap_policer_fill(msg, devlink, policer_item, cmd, 0, | |
12261 | 0, 0); | |
12262 | if (err) { | |
12263 | nlmsg_free(msg); | |
12264 | return; | |
12265 | } | |
12266 | ||
12267 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), | |
12268 | msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
12269 | } | |
12270 | ||
12271 | static int | |
12272 | devlink_trap_policer_register(struct devlink *devlink, | |
12273 | const struct devlink_trap_policer *policer) | |
12274 | { | |
12275 | struct devlink_trap_policer_item *policer_item; | |
12276 | int err; | |
12277 | ||
12278 | if (devlink_trap_policer_item_lookup(devlink, policer->id)) | |
12279 | return -EEXIST; | |
12280 | ||
12281 | policer_item = kzalloc(sizeof(*policer_item), GFP_KERNEL); | |
12282 | if (!policer_item) | |
12283 | return -ENOMEM; | |
12284 | ||
12285 | policer_item->policer = policer; | |
12286 | policer_item->rate = policer->init_rate; | |
12287 | policer_item->burst = policer->init_burst; | |
12288 | ||
12289 | if (devlink->ops->trap_policer_init) { | |
12290 | err = devlink->ops->trap_policer_init(devlink, policer); | |
12291 | if (err) | |
12292 | goto err_policer_init; | |
12293 | } | |
12294 | ||
12295 | list_add_tail(&policer_item->list, &devlink->trap_policer_list); | |
c5e0321e LR |
12296 | devlink_trap_policer_notify(devlink, policer_item, |
12297 | DEVLINK_CMD_TRAP_POLICER_NEW); | |
12298 | ||
1e8c6619 IS |
12299 | return 0; |
12300 | ||
12301 | err_policer_init: | |
12302 | kfree(policer_item); | |
12303 | return err; | |
12304 | } | |
12305 | ||
12306 | static void | |
12307 | devlink_trap_policer_unregister(struct devlink *devlink, | |
12308 | const struct devlink_trap_policer *policer) | |
12309 | { | |
12310 | struct devlink_trap_policer_item *policer_item; | |
12311 | ||
12312 | policer_item = devlink_trap_policer_item_lookup(devlink, policer->id); | |
12313 | if (WARN_ON_ONCE(!policer_item)) | |
12314 | return; | |
12315 | ||
c5e0321e LR |
12316 | devlink_trap_policer_notify(devlink, policer_item, |
12317 | DEVLINK_CMD_TRAP_POLICER_DEL); | |
1e8c6619 IS |
12318 | list_del(&policer_item->list); |
12319 | if (devlink->ops->trap_policer_fini) | |
12320 | devlink->ops->trap_policer_fini(devlink, policer); | |
12321 | kfree(policer_item); | |
12322 | } | |
12323 | ||
12324 | /** | |
852e85a7 | 12325 | * devl_trap_policers_register - Register packet trap policers with devlink. |
1e8c6619 IS |
12326 | * @devlink: devlink. |
12327 | * @policers: Packet trap policers. | |
12328 | * @policers_count: Count of provided packet trap policers. | |
12329 | * | |
12330 | * Return: Non-zero value on failure. | |
12331 | */ | |
12332 | int | |
852e85a7 JP |
12333 | devl_trap_policers_register(struct devlink *devlink, |
12334 | const struct devlink_trap_policer *policers, | |
12335 | size_t policers_count) | |
1e8c6619 IS |
12336 | { |
12337 | int i, err; | |
12338 | ||
852e85a7 | 12339 | devl_assert_locked(devlink); |
1e8c6619 IS |
12340 | for (i = 0; i < policers_count; i++) { |
12341 | const struct devlink_trap_policer *policer = &policers[i]; | |
12342 | ||
12343 | if (WARN_ON(policer->id == 0 || | |
12344 | policer->max_rate < policer->min_rate || | |
12345 | policer->max_burst < policer->min_burst)) { | |
12346 | err = -EINVAL; | |
12347 | goto err_trap_policer_verify; | |
12348 | } | |
12349 | ||
12350 | err = devlink_trap_policer_register(devlink, policer); | |
12351 | if (err) | |
12352 | goto err_trap_policer_register; | |
12353 | } | |
1e8c6619 IS |
12354 | return 0; |
12355 | ||
12356 | err_trap_policer_register: | |
12357 | err_trap_policer_verify: | |
12358 | for (i--; i >= 0; i--) | |
12359 | devlink_trap_policer_unregister(devlink, &policers[i]); | |
852e85a7 JP |
12360 | return err; |
12361 | } | |
12362 | EXPORT_SYMBOL_GPL(devl_trap_policers_register); | |
12363 | ||
852e85a7 JP |
12364 | /** |
12365 | * devl_trap_policers_unregister - Unregister packet trap policers from devlink. | |
12366 | * @devlink: devlink. | |
12367 | * @policers: Packet trap policers. | |
12368 | * @policers_count: Count of provided packet trap policers. | |
12369 | */ | |
12370 | void | |
12371 | devl_trap_policers_unregister(struct devlink *devlink, | |
12372 | const struct devlink_trap_policer *policers, | |
12373 | size_t policers_count) | |
12374 | { | |
12375 | int i; | |
12376 | ||
12377 | devl_assert_locked(devlink); | |
12378 | for (i = policers_count - 1; i >= 0; i--) | |
12379 | devlink_trap_policer_unregister(devlink, &policers[i]); | |
12380 | } | |
12381 | EXPORT_SYMBOL_GPL(devl_trap_policers_unregister); | |
12382 | ||
ddb6e99e JK |
12383 | static void __devlink_compat_running_version(struct devlink *devlink, |
12384 | char *buf, size_t len) | |
12385 | { | |
12386 | const struct nlattr *nlattr; | |
12387 | struct devlink_info_req req; | |
12388 | struct sk_buff *msg; | |
12389 | int rem, err; | |
12390 | ||
ddb6e99e JK |
12391 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
12392 | if (!msg) | |
12393 | return; | |
12394 | ||
12395 | req.msg = msg; | |
12396 | err = devlink->ops->info_get(devlink, &req, NULL); | |
12397 | if (err) | |
12398 | goto free_msg; | |
12399 | ||
12400 | nla_for_each_attr(nlattr, (void *)msg->data, msg->len, rem) { | |
12401 | const struct nlattr *kv; | |
12402 | int rem_kv; | |
12403 | ||
12404 | if (nla_type(nlattr) != DEVLINK_ATTR_INFO_VERSION_RUNNING) | |
12405 | continue; | |
12406 | ||
12407 | nla_for_each_nested(kv, nlattr, rem_kv) { | |
12408 | if (nla_type(kv) != DEVLINK_ATTR_INFO_VERSION_VALUE) | |
12409 | continue; | |
12410 | ||
12411 | strlcat(buf, nla_data(kv), len); | |
12412 | strlcat(buf, " ", len); | |
12413 | } | |
12414 | } | |
12415 | free_msg: | |
12416 | nlmsg_free(msg); | |
12417 | } | |
12418 | ||
2bc50987 LR |
12419 | static struct devlink_port *netdev_to_devlink_port(struct net_device *dev) |
12420 | { | |
12421 | if (!dev->netdev_ops->ndo_get_devlink_port) | |
12422 | return NULL; | |
12423 | ||
12424 | return dev->netdev_ops->ndo_get_devlink_port(dev); | |
12425 | } | |
12426 | ||
1af0a094 | 12427 | void devlink_compat_running_version(struct devlink *devlink, |
ddb6e99e JK |
12428 | char *buf, size_t len) |
12429 | { | |
1af0a094 JK |
12430 | if (!devlink->ops->info_get) |
12431 | return; | |
b473b0d2 | 12432 | |
7715023a | 12433 | devl_lock(devlink); |
b473b0d2 | 12434 | __devlink_compat_running_version(devlink, buf, len); |
7715023a | 12435 | devl_unlock(devlink); |
ddb6e99e JK |
12436 | } |
12437 | ||
1af0a094 | 12438 | int devlink_compat_flash_update(struct devlink *devlink, const char *file_name) |
4eceba17 | 12439 | { |
bc75c054 | 12440 | struct devlink_flash_update_params params = {}; |
e0dcd386 | 12441 | int ret; |
4eceba17 | 12442 | |
1af0a094 JK |
12443 | if (!devlink->ops->flash_update) |
12444 | return -EOPNOTSUPP; | |
4eceba17 | 12445 | |
b44cfd4f JK |
12446 | ret = request_firmware(¶ms.fw, file_name, devlink->dev); |
12447 | if (ret) | |
1af0a094 | 12448 | return ret; |
bc75c054 | 12449 | |
7715023a | 12450 | devl_lock(devlink); |
52cc5f3a | 12451 | devlink_flash_update_begin_notify(devlink); |
bc75c054 | 12452 | ret = devlink->ops->flash_update(devlink, ¶ms, NULL); |
52cc5f3a | 12453 | devlink_flash_update_end_notify(devlink); |
7715023a | 12454 | devl_unlock(devlink); |
1b45ff6c | 12455 | |
b44cfd4f JK |
12456 | release_firmware(params.fw); |
12457 | ||
b473b0d2 | 12458 | return ret; |
4eceba17 JK |
12459 | } |
12460 | ||
af3836df JP |
12461 | int devlink_compat_phys_port_name_get(struct net_device *dev, |
12462 | char *name, size_t len) | |
12463 | { | |
12464 | struct devlink_port *devlink_port; | |
12465 | ||
12466 | /* RTNL mutex is held here which ensures that devlink_port | |
12467 | * instance cannot disappear in the middle. No need to take | |
12468 | * any devlink lock as only permanent values are accessed. | |
12469 | */ | |
12470 | ASSERT_RTNL(); | |
12471 | ||
12472 | devlink_port = netdev_to_devlink_port(dev); | |
12473 | if (!devlink_port) | |
12474 | return -EOPNOTSUPP; | |
12475 | ||
12476 | return __devlink_port_phys_port_name_get(devlink_port, name, len); | |
12477 | } | |
12478 | ||
7e1146e8 JP |
12479 | int devlink_compat_switch_id_get(struct net_device *dev, |
12480 | struct netdev_phys_item_id *ppid) | |
12481 | { | |
12482 | struct devlink_port *devlink_port; | |
12483 | ||
043b8413 VB |
12484 | /* Caller must hold RTNL mutex or reference to dev, which ensures that |
12485 | * devlink_port instance cannot disappear in the middle. No need to take | |
7e1146e8 JP |
12486 | * any devlink lock as only permanent values are accessed. |
12487 | */ | |
7e1146e8 | 12488 | devlink_port = netdev_to_devlink_port(dev); |
46737a19 | 12489 | if (!devlink_port || !devlink_port->switch_port) |
7e1146e8 JP |
12490 | return -EOPNOTSUPP; |
12491 | ||
12492 | memcpy(ppid, &devlink_port->attrs.switch_id, sizeof(*ppid)); | |
12493 | ||
12494 | return 0; | |
12495 | } | |
12496 | ||
070c63f2 JP |
12497 | static void __net_exit devlink_pernet_pre_exit(struct net *net) |
12498 | { | |
12499 | struct devlink *devlink; | |
ccdf0721 | 12500 | u32 actions_performed; |
11a861d7 | 12501 | unsigned long index; |
070c63f2 JP |
12502 | int err; |
12503 | ||
12504 | /* In case network namespace is getting destroyed, reload | |
12505 | * all devlink instances from this namespace into init_net. | |
12506 | */ | |
12507 | mutex_lock(&devlink_mutex); | |
294c4f57 | 12508 | devlinks_xa_for_each_registered_get(net, index, devlink) { |
82465bec | 12509 | WARN_ON(!(devlink->features & DEVLINK_F_RELOAD)); |
cbf6ab67 LR |
12510 | err = devlink_reload(devlink, &init_net, |
12511 | DEVLINK_RELOAD_ACTION_DRIVER_REINIT, | |
12512 | DEVLINK_RELOAD_LIMIT_UNSPEC, | |
12513 | &actions_performed, NULL); | |
12514 | if (err && err != -EOPNOTSUPP) | |
12515 | pr_warn("Failed to reload devlink instance into init_net\n"); | |
437ebfd9 | 12516 | devlink_put(devlink); |
070c63f2 JP |
12517 | } |
12518 | mutex_unlock(&devlink_mutex); | |
12519 | } | |
12520 | ||
12521 | static struct pernet_operations devlink_pernet_ops __net_initdata = { | |
12522 | .pre_exit = devlink_pernet_pre_exit, | |
12523 | }; | |
12524 | ||
f4b6bcc7 | 12525 | static int __init devlink_init(void) |
bfcd3a46 | 12526 | { |
070c63f2 JP |
12527 | int err; |
12528 | ||
12529 | err = genl_register_family(&devlink_nl_family); | |
12530 | if (err) | |
12531 | goto out; | |
12532 | err = register_pernet_subsys(&devlink_pernet_ops); | |
12533 | ||
12534 | out: | |
12535 | WARN_ON(err); | |
12536 | return err; | |
bfcd3a46 JP |
12537 | } |
12538 | ||
f4b6bcc7 | 12539 | subsys_initcall(devlink_init); |