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 | ||
471f894f | 228 | struct net *devlink_net(const struct devlink *devlink) |
bfcd3a46 JP |
229 | { |
230 | return read_pnet(&devlink->_net); | |
231 | } | |
471f894f | 232 | EXPORT_SYMBOL_GPL(devlink_net); |
bfcd3a46 | 233 | |
30bab7cd JP |
234 | static void __devlink_put_rcu(struct rcu_head *head) |
235 | { | |
236 | struct devlink *devlink = container_of(head, struct devlink, rcu); | |
237 | ||
238 | complete(&devlink->comp); | |
239 | } | |
240 | ||
46db1b77 | 241 | void devlink_put(struct devlink *devlink) |
437ebfd9 LR |
242 | { |
243 | if (refcount_dec_and_test(&devlink->refcount)) | |
30bab7cd JP |
244 | /* Make sure unregister operation that may await the completion |
245 | * is unblocked only after all users are after the end of | |
246 | * RCU grace period. | |
247 | */ | |
248 | call_rcu(&devlink->rcu, __devlink_put_rcu); | |
437ebfd9 LR |
249 | } |
250 | ||
46db1b77 | 251 | struct devlink *__must_check devlink_try_get(struct devlink *devlink) |
437ebfd9 | 252 | { |
46db1b77 JK |
253 | if (refcount_inc_not_zero(&devlink->refcount)) |
254 | return devlink; | |
255 | return NULL; | |
437ebfd9 LR |
256 | } |
257 | ||
2cb7b489 JK |
258 | void devl_assert_locked(struct devlink *devlink) |
259 | { | |
260 | lockdep_assert_held(&devlink->lock); | |
261 | } | |
262 | EXPORT_SYMBOL_GPL(devl_assert_locked); | |
263 | ||
264 | #ifdef CONFIG_LOCKDEP | |
265 | /* For use in conjunction with LOCKDEP only e.g. rcu_dereference_protected() */ | |
266 | bool devl_lock_is_held(struct devlink *devlink) | |
267 | { | |
268 | return lockdep_is_held(&devlink->lock); | |
269 | } | |
270 | EXPORT_SYMBOL_GPL(devl_lock_is_held); | |
271 | #endif | |
272 | ||
273 | void devl_lock(struct devlink *devlink) | |
274 | { | |
275 | mutex_lock(&devlink->lock); | |
276 | } | |
277 | EXPORT_SYMBOL_GPL(devl_lock); | |
278 | ||
012ec02a JP |
279 | int devl_trylock(struct devlink *devlink) |
280 | { | |
281 | return mutex_trylock(&devlink->lock); | |
282 | } | |
283 | EXPORT_SYMBOL_GPL(devl_trylock); | |
284 | ||
2cb7b489 JK |
285 | void devl_unlock(struct devlink *devlink) |
286 | { | |
287 | mutex_unlock(&devlink->lock); | |
288 | } | |
289 | EXPORT_SYMBOL_GPL(devl_unlock); | |
290 | ||
30bab7cd | 291 | static struct devlink * |
294c4f57 | 292 | devlinks_xa_find_get(struct net *net, unsigned long *indexp, xa_mark_t filter, |
30bab7cd JP |
293 | void * (*xa_find_fn)(struct xarray *, unsigned long *, |
294 | unsigned long, xa_mark_t)) | |
295 | { | |
296 | struct devlink *devlink; | |
297 | ||
298 | rcu_read_lock(); | |
299 | retry: | |
300 | devlink = xa_find_fn(&devlinks, indexp, ULONG_MAX, DEVLINK_REGISTERED); | |
301 | if (!devlink) | |
302 | goto unlock; | |
c2368b19 JP |
303 | |
304 | /* In case devlink_unregister() was already called and "unregistering" | |
305 | * mark was set, do not allow to get a devlink reference here. | |
306 | * This prevents live-lock of devlink_unregister() wait for completion. | |
307 | */ | |
308 | if (xa_get_mark(&devlinks, *indexp, DEVLINK_UNREGISTERING)) | |
309 | goto retry; | |
310 | ||
30bab7cd JP |
311 | /* For a possible retry, the xa_find_after() should be always used */ |
312 | xa_find_fn = xa_find_after; | |
313 | if (!devlink_try_get(devlink)) | |
314 | goto retry; | |
294c4f57 JP |
315 | if (!net_eq(devlink_net(devlink), net)) { |
316 | devlink_put(devlink); | |
317 | goto retry; | |
318 | } | |
30bab7cd JP |
319 | unlock: |
320 | rcu_read_unlock(); | |
321 | return devlink; | |
322 | } | |
323 | ||
294c4f57 JP |
324 | static struct devlink *devlinks_xa_find_get_first(struct net *net, |
325 | unsigned long *indexp, | |
30bab7cd JP |
326 | xa_mark_t filter) |
327 | { | |
294c4f57 | 328 | return devlinks_xa_find_get(net, indexp, filter, xa_find); |
30bab7cd JP |
329 | } |
330 | ||
294c4f57 JP |
331 | static struct devlink *devlinks_xa_find_get_next(struct net *net, |
332 | unsigned long *indexp, | |
30bab7cd JP |
333 | xa_mark_t filter) |
334 | { | |
294c4f57 | 335 | return devlinks_xa_find_get(net, indexp, filter, xa_find_after); |
30bab7cd JP |
336 | } |
337 | ||
338 | /* Iterate over devlink pointers which were possible to get reference to. | |
339 | * devlink_put() needs to be called for each iterated devlink pointer | |
340 | * in loop body in order to release the reference. | |
341 | */ | |
294c4f57 JP |
342 | #define devlinks_xa_for_each_get(net, index, devlink, filter) \ |
343 | for (index = 0, \ | |
344 | devlink = devlinks_xa_find_get_first(net, &index, filter); \ | |
345 | devlink; devlink = devlinks_xa_find_get_next(net, &index, filter)) | |
30bab7cd | 346 | |
294c4f57 JP |
347 | #define devlinks_xa_for_each_registered_get(net, index, devlink) \ |
348 | devlinks_xa_for_each_get(net, index, devlink, DEVLINK_REGISTERED) | |
30bab7cd | 349 | |
bfcd3a46 JP |
350 | static struct devlink *devlink_get_from_attrs(struct net *net, |
351 | struct nlattr **attrs) | |
352 | { | |
353 | struct devlink *devlink; | |
11a861d7 | 354 | unsigned long index; |
bfcd3a46 JP |
355 | char *busname; |
356 | char *devname; | |
357 | ||
358 | if (!attrs[DEVLINK_ATTR_BUS_NAME] || !attrs[DEVLINK_ATTR_DEV_NAME]) | |
359 | return ERR_PTR(-EINVAL); | |
360 | ||
361 | busname = nla_data(attrs[DEVLINK_ATTR_BUS_NAME]); | |
362 | devname = nla_data(attrs[DEVLINK_ATTR_DEV_NAME]); | |
363 | ||
294c4f57 | 364 | devlinks_xa_for_each_registered_get(net, index, devlink) { |
bfcd3a46 | 365 | if (strcmp(devlink->dev->bus->name, busname) == 0 && |
294c4f57 | 366 | strcmp(dev_name(devlink->dev), devname) == 0) |
30bab7cd JP |
367 | return devlink; |
368 | devlink_put(devlink); | |
bfcd3a46 JP |
369 | } |
370 | ||
30bab7cd | 371 | return ERR_PTR(-ENODEV); |
bfcd3a46 JP |
372 | } |
373 | ||
3fcb698d | 374 | #define ASSERT_DEVLINK_PORT_REGISTERED(devlink_port) \ |
081adcfe | 375 | WARN_ON_ONCE(!(devlink_port)->registered) |
3fcb698d | 376 | #define ASSERT_DEVLINK_PORT_NOT_REGISTERED(devlink_port) \ |
081adcfe | 377 | WARN_ON_ONCE((devlink_port)->registered) |
ae3bbc04 JP |
378 | #define ASSERT_DEVLINK_PORT_INITIALIZED(devlink_port) \ |
379 | WARN_ON_ONCE(!(devlink_port)->initialized) | |
3fcb698d | 380 | |
bfcd3a46 | 381 | static struct devlink_port *devlink_port_get_by_index(struct devlink *devlink, |
c7282b50 | 382 | unsigned int port_index) |
bfcd3a46 JP |
383 | { |
384 | struct devlink_port *devlink_port; | |
385 | ||
386 | list_for_each_entry(devlink_port, &devlink->port_list, list) { | |
387 | if (devlink_port->index == port_index) | |
388 | return devlink_port; | |
389 | } | |
390 | return NULL; | |
391 | } | |
392 | ||
c7282b50 PP |
393 | static bool devlink_port_index_exists(struct devlink *devlink, |
394 | unsigned int port_index) | |
bfcd3a46 JP |
395 | { |
396 | return devlink_port_get_by_index(devlink, port_index); | |
397 | } | |
398 | ||
399 | static struct devlink_port *devlink_port_get_from_attrs(struct devlink *devlink, | |
400 | struct nlattr **attrs) | |
401 | { | |
402 | if (attrs[DEVLINK_ATTR_PORT_INDEX]) { | |
403 | u32 port_index = nla_get_u32(attrs[DEVLINK_ATTR_PORT_INDEX]); | |
404 | struct devlink_port *devlink_port; | |
405 | ||
406 | devlink_port = devlink_port_get_by_index(devlink, port_index); | |
407 | if (!devlink_port) | |
408 | return ERR_PTR(-ENODEV); | |
409 | return devlink_port; | |
410 | } | |
411 | return ERR_PTR(-EINVAL); | |
412 | } | |
413 | ||
414 | static struct devlink_port *devlink_port_get_from_info(struct devlink *devlink, | |
415 | struct genl_info *info) | |
416 | { | |
417 | return devlink_port_get_from_attrs(devlink, info->attrs); | |
418 | } | |
419 | ||
4677efc4 DL |
420 | static inline bool |
421 | devlink_rate_is_leaf(struct devlink_rate *devlink_rate) | |
422 | { | |
423 | return devlink_rate->type == DEVLINK_RATE_TYPE_LEAF; | |
424 | } | |
425 | ||
a8ecb93e DL |
426 | static inline bool |
427 | devlink_rate_is_node(struct devlink_rate *devlink_rate) | |
428 | { | |
429 | return devlink_rate->type == DEVLINK_RATE_TYPE_NODE; | |
430 | } | |
431 | ||
4677efc4 DL |
432 | static struct devlink_rate * |
433 | devlink_rate_leaf_get_from_info(struct devlink *devlink, struct genl_info *info) | |
434 | { | |
435 | struct devlink_rate *devlink_rate; | |
436 | struct devlink_port *devlink_port; | |
437 | ||
438 | devlink_port = devlink_port_get_from_attrs(devlink, info->attrs); | |
439 | if (IS_ERR(devlink_port)) | |
440 | return ERR_CAST(devlink_port); | |
441 | devlink_rate = devlink_port->devlink_rate; | |
442 | return devlink_rate ?: ERR_PTR(-ENODEV); | |
443 | } | |
444 | ||
a8ecb93e DL |
445 | static struct devlink_rate * |
446 | devlink_rate_node_get_by_name(struct devlink *devlink, const char *node_name) | |
447 | { | |
448 | static struct devlink_rate *devlink_rate; | |
449 | ||
450 | list_for_each_entry(devlink_rate, &devlink->rate_list, list) { | |
451 | if (devlink_rate_is_node(devlink_rate) && | |
452 | !strcmp(node_name, devlink_rate->name)) | |
453 | return devlink_rate; | |
454 | } | |
455 | return ERR_PTR(-ENODEV); | |
456 | } | |
457 | ||
458 | static struct devlink_rate * | |
459 | devlink_rate_node_get_from_attrs(struct devlink *devlink, struct nlattr **attrs) | |
460 | { | |
461 | const char *rate_node_name; | |
462 | size_t len; | |
463 | ||
464 | if (!attrs[DEVLINK_ATTR_RATE_NODE_NAME]) | |
465 | return ERR_PTR(-EINVAL); | |
466 | rate_node_name = nla_data(attrs[DEVLINK_ATTR_RATE_NODE_NAME]); | |
467 | len = strlen(rate_node_name); | |
468 | /* Name cannot be empty or decimal number */ | |
469 | if (!len || strspn(rate_node_name, "0123456789") == len) | |
470 | return ERR_PTR(-EINVAL); | |
471 | ||
472 | return devlink_rate_node_get_by_name(devlink, rate_node_name); | |
473 | } | |
474 | ||
475 | static struct devlink_rate * | |
476 | devlink_rate_node_get_from_info(struct devlink *devlink, struct genl_info *info) | |
477 | { | |
478 | return devlink_rate_node_get_from_attrs(devlink, info->attrs); | |
479 | } | |
480 | ||
481 | static struct devlink_rate * | |
482 | devlink_rate_get_from_info(struct devlink *devlink, struct genl_info *info) | |
483 | { | |
484 | struct nlattr **attrs = info->attrs; | |
485 | ||
486 | if (attrs[DEVLINK_ATTR_PORT_INDEX]) | |
487 | return devlink_rate_leaf_get_from_info(devlink, info); | |
488 | else if (attrs[DEVLINK_ATTR_RATE_NODE_NAME]) | |
489 | return devlink_rate_node_get_from_info(devlink, info); | |
490 | else | |
491 | return ERR_PTR(-EINVAL); | |
492 | } | |
493 | ||
c246f9b5 JP |
494 | static struct devlink_linecard * |
495 | devlink_linecard_get_by_index(struct devlink *devlink, | |
496 | unsigned int linecard_index) | |
497 | { | |
498 | struct devlink_linecard *devlink_linecard; | |
499 | ||
500 | list_for_each_entry(devlink_linecard, &devlink->linecard_list, list) { | |
501 | if (devlink_linecard->index == linecard_index) | |
502 | return devlink_linecard; | |
503 | } | |
504 | return NULL; | |
505 | } | |
506 | ||
507 | static bool devlink_linecard_index_exists(struct devlink *devlink, | |
508 | unsigned int linecard_index) | |
509 | { | |
510 | return devlink_linecard_get_by_index(devlink, linecard_index); | |
511 | } | |
512 | ||
513 | static struct devlink_linecard * | |
514 | devlink_linecard_get_from_attrs(struct devlink *devlink, struct nlattr **attrs) | |
515 | { | |
516 | if (attrs[DEVLINK_ATTR_LINECARD_INDEX]) { | |
517 | u32 linecard_index = nla_get_u32(attrs[DEVLINK_ATTR_LINECARD_INDEX]); | |
518 | struct devlink_linecard *linecard; | |
519 | ||
520 | mutex_lock(&devlink->linecards_lock); | |
521 | linecard = devlink_linecard_get_by_index(devlink, linecard_index); | |
522 | if (linecard) | |
523 | refcount_inc(&linecard->refcount); | |
524 | mutex_unlock(&devlink->linecards_lock); | |
525 | if (!linecard) | |
526 | return ERR_PTR(-ENODEV); | |
527 | return linecard; | |
528 | } | |
529 | return ERR_PTR(-EINVAL); | |
530 | } | |
531 | ||
532 | static struct devlink_linecard * | |
533 | devlink_linecard_get_from_info(struct devlink *devlink, struct genl_info *info) | |
534 | { | |
535 | return devlink_linecard_get_from_attrs(devlink, info->attrs); | |
536 | } | |
537 | ||
538 | static void devlink_linecard_put(struct devlink_linecard *linecard) | |
539 | { | |
fcdc8ce2 JP |
540 | if (refcount_dec_and_test(&linecard->refcount)) { |
541 | mutex_destroy(&linecard->state_lock); | |
c246f9b5 | 542 | kfree(linecard); |
fcdc8ce2 | 543 | } |
c246f9b5 JP |
544 | } |
545 | ||
bf797471 JP |
546 | struct devlink_sb { |
547 | struct list_head list; | |
548 | unsigned int index; | |
549 | u32 size; | |
550 | u16 ingress_pools_count; | |
551 | u16 egress_pools_count; | |
552 | u16 ingress_tc_count; | |
553 | u16 egress_tc_count; | |
554 | }; | |
555 | ||
556 | static u16 devlink_sb_pool_count(struct devlink_sb *devlink_sb) | |
557 | { | |
558 | return devlink_sb->ingress_pools_count + devlink_sb->egress_pools_count; | |
559 | } | |
560 | ||
561 | static struct devlink_sb *devlink_sb_get_by_index(struct devlink *devlink, | |
562 | unsigned int sb_index) | |
563 | { | |
564 | struct devlink_sb *devlink_sb; | |
565 | ||
566 | list_for_each_entry(devlink_sb, &devlink->sb_list, list) { | |
567 | if (devlink_sb->index == sb_index) | |
568 | return devlink_sb; | |
569 | } | |
570 | return NULL; | |
571 | } | |
572 | ||
573 | static bool devlink_sb_index_exists(struct devlink *devlink, | |
574 | unsigned int sb_index) | |
575 | { | |
576 | return devlink_sb_get_by_index(devlink, sb_index); | |
577 | } | |
578 | ||
579 | static struct devlink_sb *devlink_sb_get_from_attrs(struct devlink *devlink, | |
580 | struct nlattr **attrs) | |
581 | { | |
582 | if (attrs[DEVLINK_ATTR_SB_INDEX]) { | |
583 | u32 sb_index = nla_get_u32(attrs[DEVLINK_ATTR_SB_INDEX]); | |
584 | struct devlink_sb *devlink_sb; | |
585 | ||
586 | devlink_sb = devlink_sb_get_by_index(devlink, sb_index); | |
587 | if (!devlink_sb) | |
588 | return ERR_PTR(-ENODEV); | |
589 | return devlink_sb; | |
590 | } | |
591 | return ERR_PTR(-EINVAL); | |
592 | } | |
593 | ||
594 | static struct devlink_sb *devlink_sb_get_from_info(struct devlink *devlink, | |
595 | struct genl_info *info) | |
596 | { | |
597 | return devlink_sb_get_from_attrs(devlink, info->attrs); | |
598 | } | |
599 | ||
600 | static int devlink_sb_pool_index_get_from_attrs(struct devlink_sb *devlink_sb, | |
601 | struct nlattr **attrs, | |
602 | u16 *p_pool_index) | |
603 | { | |
604 | u16 val; | |
605 | ||
606 | if (!attrs[DEVLINK_ATTR_SB_POOL_INDEX]) | |
607 | return -EINVAL; | |
608 | ||
609 | val = nla_get_u16(attrs[DEVLINK_ATTR_SB_POOL_INDEX]); | |
610 | if (val >= devlink_sb_pool_count(devlink_sb)) | |
611 | return -EINVAL; | |
612 | *p_pool_index = val; | |
613 | return 0; | |
614 | } | |
615 | ||
616 | static int devlink_sb_pool_index_get_from_info(struct devlink_sb *devlink_sb, | |
617 | struct genl_info *info, | |
618 | u16 *p_pool_index) | |
619 | { | |
620 | return devlink_sb_pool_index_get_from_attrs(devlink_sb, info->attrs, | |
621 | p_pool_index); | |
622 | } | |
623 | ||
624 | static int | |
625 | devlink_sb_pool_type_get_from_attrs(struct nlattr **attrs, | |
626 | enum devlink_sb_pool_type *p_pool_type) | |
627 | { | |
628 | u8 val; | |
629 | ||
630 | if (!attrs[DEVLINK_ATTR_SB_POOL_TYPE]) | |
631 | return -EINVAL; | |
632 | ||
633 | val = nla_get_u8(attrs[DEVLINK_ATTR_SB_POOL_TYPE]); | |
634 | if (val != DEVLINK_SB_POOL_TYPE_INGRESS && | |
635 | val != DEVLINK_SB_POOL_TYPE_EGRESS) | |
636 | return -EINVAL; | |
637 | *p_pool_type = val; | |
638 | return 0; | |
639 | } | |
640 | ||
641 | static int | |
642 | devlink_sb_pool_type_get_from_info(struct genl_info *info, | |
643 | enum devlink_sb_pool_type *p_pool_type) | |
644 | { | |
645 | return devlink_sb_pool_type_get_from_attrs(info->attrs, p_pool_type); | |
646 | } | |
647 | ||
648 | static int | |
649 | devlink_sb_th_type_get_from_attrs(struct nlattr **attrs, | |
650 | enum devlink_sb_threshold_type *p_th_type) | |
651 | { | |
652 | u8 val; | |
653 | ||
654 | if (!attrs[DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE]) | |
655 | return -EINVAL; | |
656 | ||
657 | val = nla_get_u8(attrs[DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE]); | |
658 | if (val != DEVLINK_SB_THRESHOLD_TYPE_STATIC && | |
659 | val != DEVLINK_SB_THRESHOLD_TYPE_DYNAMIC) | |
660 | return -EINVAL; | |
661 | *p_th_type = val; | |
662 | return 0; | |
663 | } | |
664 | ||
665 | static int | |
666 | devlink_sb_th_type_get_from_info(struct genl_info *info, | |
667 | enum devlink_sb_threshold_type *p_th_type) | |
668 | { | |
669 | return devlink_sb_th_type_get_from_attrs(info->attrs, p_th_type); | |
670 | } | |
671 | ||
672 | static int | |
673 | devlink_sb_tc_index_get_from_attrs(struct devlink_sb *devlink_sb, | |
674 | struct nlattr **attrs, | |
675 | enum devlink_sb_pool_type pool_type, | |
676 | u16 *p_tc_index) | |
677 | { | |
678 | u16 val; | |
679 | ||
680 | if (!attrs[DEVLINK_ATTR_SB_TC_INDEX]) | |
681 | return -EINVAL; | |
682 | ||
683 | val = nla_get_u16(attrs[DEVLINK_ATTR_SB_TC_INDEX]); | |
684 | if (pool_type == DEVLINK_SB_POOL_TYPE_INGRESS && | |
685 | val >= devlink_sb->ingress_tc_count) | |
686 | return -EINVAL; | |
687 | if (pool_type == DEVLINK_SB_POOL_TYPE_EGRESS && | |
688 | val >= devlink_sb->egress_tc_count) | |
689 | return -EINVAL; | |
690 | *p_tc_index = val; | |
691 | return 0; | |
692 | } | |
693 | ||
694 | static int | |
695 | devlink_sb_tc_index_get_from_info(struct devlink_sb *devlink_sb, | |
696 | struct genl_info *info, | |
697 | enum devlink_sb_pool_type pool_type, | |
698 | u16 *p_tc_index) | |
699 | { | |
700 | return devlink_sb_tc_index_get_from_attrs(devlink_sb, info->attrs, | |
701 | pool_type, p_tc_index); | |
702 | } | |
703 | ||
b16ebe92 AV |
704 | struct devlink_region { |
705 | struct devlink *devlink; | |
544e7c33 | 706 | struct devlink_port *port; |
b16ebe92 | 707 | struct list_head list; |
544e7c33 AL |
708 | union { |
709 | const struct devlink_region_ops *ops; | |
710 | const struct devlink_port_region_ops *port_ops; | |
711 | }; | |
2dec18ad JP |
712 | struct mutex snapshot_lock; /* protects snapshot_list, |
713 | * max_snapshots and cur_snapshots | |
714 | * consistency. | |
715 | */ | |
b16ebe92 AV |
716 | struct list_head snapshot_list; |
717 | u32 max_snapshots; | |
718 | u32 cur_snapshots; | |
719 | u64 size; | |
720 | }; | |
721 | ||
d7e52722 AV |
722 | struct devlink_snapshot { |
723 | struct list_head list; | |
724 | struct devlink_region *region; | |
d7e52722 AV |
725 | u8 *data; |
726 | u32 id; | |
727 | }; | |
728 | ||
b16ebe92 AV |
729 | static struct devlink_region * |
730 | devlink_region_get_by_name(struct devlink *devlink, const char *region_name) | |
731 | { | |
732 | struct devlink_region *region; | |
733 | ||
734 | list_for_each_entry(region, &devlink->region_list, list) | |
e8937681 | 735 | if (!strcmp(region->ops->name, region_name)) |
b16ebe92 AV |
736 | return region; |
737 | ||
738 | return NULL; | |
739 | } | |
740 | ||
544e7c33 AL |
741 | static struct devlink_region * |
742 | devlink_port_region_get_by_name(struct devlink_port *port, | |
743 | const char *region_name) | |
744 | { | |
745 | struct devlink_region *region; | |
746 | ||
747 | list_for_each_entry(region, &port->region_list, list) | |
748 | if (!strcmp(region->ops->name, region_name)) | |
749 | return region; | |
750 | ||
751 | return NULL; | |
752 | } | |
753 | ||
d7e52722 AV |
754 | static struct devlink_snapshot * |
755 | devlink_region_snapshot_get_by_id(struct devlink_region *region, u32 id) | |
756 | { | |
757 | struct devlink_snapshot *snapshot; | |
758 | ||
759 | list_for_each_entry(snapshot, ®ion->snapshot_list, list) | |
760 | if (snapshot->id == id) | |
761 | return snapshot; | |
762 | ||
763 | return NULL; | |
764 | } | |
765 | ||
637989b5 PP |
766 | #define DEVLINK_NL_FLAG_NEED_PORT BIT(0) |
767 | #define DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT BIT(1) | |
4677efc4 | 768 | #define DEVLINK_NL_FLAG_NEED_RATE BIT(2) |
a8ecb93e | 769 | #define DEVLINK_NL_FLAG_NEED_RATE_NODE BIT(3) |
c246f9b5 | 770 | #define DEVLINK_NL_FLAG_NEED_LINECARD BIT(4) |
2406e7e5 | 771 | |
bfcd3a46 JP |
772 | static int devlink_nl_pre_doit(const struct genl_ops *ops, |
773 | struct sk_buff *skb, struct genl_info *info) | |
774 | { | |
c246f9b5 | 775 | struct devlink_linecard *linecard; |
f4f54166 | 776 | struct devlink_port *devlink_port; |
bfcd3a46 | 777 | struct devlink *devlink; |
2406e7e5 | 778 | int err; |
bfcd3a46 | 779 | |
437ebfd9 | 780 | devlink = devlink_get_from_attrs(genl_info_net(info), info->attrs); |
d3efc2a6 | 781 | if (IS_ERR(devlink)) |
bfcd3a46 | 782 | return PTR_ERR(devlink); |
644a66c6 | 783 | devl_lock(devlink); |
637989b5 PP |
784 | info->user_ptr[0] = devlink; |
785 | if (ops->internal_flags & DEVLINK_NL_FLAG_NEED_PORT) { | |
bfcd3a46 JP |
786 | devlink_port = devlink_port_get_from_info(devlink, info); |
787 | if (IS_ERR(devlink_port)) { | |
2406e7e5 AS |
788 | err = PTR_ERR(devlink_port); |
789 | goto unlock; | |
bfcd3a46 | 790 | } |
637989b5 | 791 | info->user_ptr[1] = devlink_port; |
f4f54166 | 792 | } else if (ops->internal_flags & DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT) { |
f4f54166 VT |
793 | devlink_port = devlink_port_get_from_info(devlink, info); |
794 | if (!IS_ERR(devlink_port)) | |
795 | info->user_ptr[1] = devlink_port; | |
4677efc4 DL |
796 | } else if (ops->internal_flags & DEVLINK_NL_FLAG_NEED_RATE) { |
797 | struct devlink_rate *devlink_rate; | |
798 | ||
a8ecb93e | 799 | devlink_rate = devlink_rate_get_from_info(devlink, info); |
4677efc4 DL |
800 | if (IS_ERR(devlink_rate)) { |
801 | err = PTR_ERR(devlink_rate); | |
802 | goto unlock; | |
803 | } | |
804 | info->user_ptr[1] = devlink_rate; | |
a8ecb93e DL |
805 | } else if (ops->internal_flags & DEVLINK_NL_FLAG_NEED_RATE_NODE) { |
806 | struct devlink_rate *rate_node; | |
807 | ||
808 | rate_node = devlink_rate_node_get_from_info(devlink, info); | |
809 | if (IS_ERR(rate_node)) { | |
810 | err = PTR_ERR(rate_node); | |
811 | goto unlock; | |
812 | } | |
813 | info->user_ptr[1] = rate_node; | |
c246f9b5 JP |
814 | } else if (ops->internal_flags & DEVLINK_NL_FLAG_NEED_LINECARD) { |
815 | linecard = devlink_linecard_get_from_info(devlink, info); | |
816 | if (IS_ERR(linecard)) { | |
817 | err = PTR_ERR(linecard); | |
818 | goto unlock; | |
819 | } | |
820 | info->user_ptr[1] = linecard; | |
bfcd3a46 JP |
821 | } |
822 | return 0; | |
2406e7e5 AS |
823 | |
824 | unlock: | |
644a66c6 | 825 | devl_unlock(devlink); |
437ebfd9 | 826 | devlink_put(devlink); |
2406e7e5 | 827 | return err; |
bfcd3a46 JP |
828 | } |
829 | ||
830 | static void devlink_nl_post_doit(const struct genl_ops *ops, | |
831 | struct sk_buff *skb, struct genl_info *info) | |
832 | { | |
c246f9b5 | 833 | struct devlink_linecard *linecard; |
2406e7e5 AS |
834 | struct devlink *devlink; |
835 | ||
637989b5 | 836 | devlink = info->user_ptr[0]; |
c246f9b5 JP |
837 | if (ops->internal_flags & DEVLINK_NL_FLAG_NEED_LINECARD) { |
838 | linecard = info->user_ptr[1]; | |
839 | devlink_linecard_put(linecard); | |
840 | } | |
644a66c6 | 841 | devl_unlock(devlink); |
437ebfd9 | 842 | devlink_put(devlink); |
bfcd3a46 JP |
843 | } |
844 | ||
489111e5 | 845 | static struct genl_family devlink_nl_family; |
bfcd3a46 JP |
846 | |
847 | enum devlink_multicast_groups { | |
848 | DEVLINK_MCGRP_CONFIG, | |
849 | }; | |
850 | ||
851 | static const struct genl_multicast_group devlink_nl_mcgrps[] = { | |
852 | [DEVLINK_MCGRP_CONFIG] = { .name = DEVLINK_GENL_MCGRP_CONFIG_NAME }, | |
853 | }; | |
854 | ||
855 | static int devlink_nl_put_handle(struct sk_buff *msg, struct devlink *devlink) | |
856 | { | |
857 | if (nla_put_string(msg, DEVLINK_ATTR_BUS_NAME, devlink->dev->bus->name)) | |
858 | return -EMSGSIZE; | |
859 | if (nla_put_string(msg, DEVLINK_ATTR_DEV_NAME, dev_name(devlink->dev))) | |
860 | return -EMSGSIZE; | |
861 | return 0; | |
862 | } | |
863 | ||
7b2d9a1a JP |
864 | static int devlink_nl_put_nested_handle(struct sk_buff *msg, struct devlink *devlink) |
865 | { | |
866 | struct nlattr *nested_attr; | |
867 | ||
868 | nested_attr = nla_nest_start(msg, DEVLINK_ATTR_NESTED_DEVLINK); | |
869 | if (!nested_attr) | |
870 | return -EMSGSIZE; | |
871 | if (devlink_nl_put_handle(msg, devlink)) | |
872 | goto nla_put_failure; | |
873 | ||
874 | nla_nest_end(msg, nested_attr); | |
875 | return 0; | |
876 | ||
877 | nla_put_failure: | |
878 | nla_nest_cancel(msg, nested_attr); | |
879 | return -EMSGSIZE; | |
880 | } | |
881 | ||
dc64cc7c MS |
882 | struct devlink_reload_combination { |
883 | enum devlink_reload_action action; | |
884 | enum devlink_reload_limit limit; | |
885 | }; | |
886 | ||
887 | static const struct devlink_reload_combination devlink_reload_invalid_combinations[] = { | |
888 | { | |
889 | /* can't reinitialize driver with no down time */ | |
890 | .action = DEVLINK_RELOAD_ACTION_DRIVER_REINIT, | |
891 | .limit = DEVLINK_RELOAD_LIMIT_NO_RESET, | |
892 | }, | |
893 | }; | |
894 | ||
895 | static bool | |
896 | devlink_reload_combination_is_invalid(enum devlink_reload_action action, | |
897 | enum devlink_reload_limit limit) | |
898 | { | |
899 | int i; | |
900 | ||
901 | for (i = 0; i < ARRAY_SIZE(devlink_reload_invalid_combinations); i++) | |
902 | if (devlink_reload_invalid_combinations[i].action == action && | |
903 | devlink_reload_invalid_combinations[i].limit == limit) | |
904 | return true; | |
905 | return false; | |
906 | } | |
907 | ||
ccdf0721 MS |
908 | static bool |
909 | devlink_reload_action_is_supported(struct devlink *devlink, enum devlink_reload_action action) | |
910 | { | |
911 | return test_bit(action, &devlink->ops->reload_actions); | |
912 | } | |
913 | ||
dc64cc7c MS |
914 | static bool |
915 | devlink_reload_limit_is_supported(struct devlink *devlink, enum devlink_reload_limit limit) | |
916 | { | |
917 | return test_bit(limit, &devlink->ops->reload_limits); | |
918 | } | |
919 | ||
5204bb68 | 920 | static int devlink_reload_stat_put(struct sk_buff *msg, |
a254c264 MS |
921 | enum devlink_reload_limit limit, u32 value) |
922 | { | |
923 | struct nlattr *reload_stats_entry; | |
924 | ||
925 | reload_stats_entry = nla_nest_start(msg, DEVLINK_ATTR_RELOAD_STATS_ENTRY); | |
926 | if (!reload_stats_entry) | |
927 | return -EMSGSIZE; | |
928 | ||
5204bb68 | 929 | if (nla_put_u8(msg, DEVLINK_ATTR_RELOAD_STATS_LIMIT, limit) || |
a254c264 MS |
930 | nla_put_u32(msg, DEVLINK_ATTR_RELOAD_STATS_VALUE, value)) |
931 | goto nla_put_failure; | |
932 | nla_nest_end(msg, reload_stats_entry); | |
933 | return 0; | |
934 | ||
935 | nla_put_failure: | |
936 | nla_nest_cancel(msg, reload_stats_entry); | |
937 | return -EMSGSIZE; | |
938 | } | |
939 | ||
77069ba2 | 940 | static int devlink_reload_stats_put(struct sk_buff *msg, struct devlink *devlink, bool is_remote) |
a254c264 | 941 | { |
5204bb68 | 942 | struct nlattr *reload_stats_attr, *act_info, *act_stats; |
a254c264 MS |
943 | int i, j, stat_idx; |
944 | u32 value; | |
945 | ||
77069ba2 MS |
946 | if (!is_remote) |
947 | reload_stats_attr = nla_nest_start(msg, DEVLINK_ATTR_RELOAD_STATS); | |
948 | else | |
949 | reload_stats_attr = nla_nest_start(msg, DEVLINK_ATTR_REMOTE_RELOAD_STATS); | |
a254c264 MS |
950 | |
951 | if (!reload_stats_attr) | |
952 | return -EMSGSIZE; | |
953 | ||
5204bb68 MS |
954 | for (i = 0; i <= DEVLINK_RELOAD_ACTION_MAX; i++) { |
955 | if ((!is_remote && | |
956 | !devlink_reload_action_is_supported(devlink, i)) || | |
957 | i == DEVLINK_RELOAD_ACTION_UNSPEC) | |
a254c264 | 958 | continue; |
5204bb68 MS |
959 | act_info = nla_nest_start(msg, DEVLINK_ATTR_RELOAD_ACTION_INFO); |
960 | if (!act_info) | |
961 | goto nla_put_failure; | |
962 | ||
963 | if (nla_put_u8(msg, DEVLINK_ATTR_RELOAD_ACTION, i)) | |
964 | goto action_info_nest_cancel; | |
965 | act_stats = nla_nest_start(msg, DEVLINK_ATTR_RELOAD_ACTION_STATS); | |
966 | if (!act_stats) | |
967 | goto action_info_nest_cancel; | |
968 | ||
969 | for (j = 0; j <= DEVLINK_RELOAD_LIMIT_MAX; j++) { | |
970 | /* Remote stats are shown even if not locally supported. | |
971 | * Stats of actions with unspecified limit are shown | |
972 | * though drivers don't need to register unspecified | |
973 | * limit. | |
974 | */ | |
975 | if ((!is_remote && j != DEVLINK_RELOAD_LIMIT_UNSPEC && | |
976 | !devlink_reload_limit_is_supported(devlink, j)) || | |
a254c264 MS |
977 | devlink_reload_combination_is_invalid(i, j)) |
978 | continue; | |
979 | ||
980 | stat_idx = j * __DEVLINK_RELOAD_ACTION_MAX + i; | |
77069ba2 MS |
981 | if (!is_remote) |
982 | value = devlink->stats.reload_stats[stat_idx]; | |
983 | else | |
984 | value = devlink->stats.remote_reload_stats[stat_idx]; | |
5204bb68 MS |
985 | if (devlink_reload_stat_put(msg, j, value)) |
986 | goto action_stats_nest_cancel; | |
a254c264 | 987 | } |
5204bb68 MS |
988 | nla_nest_end(msg, act_stats); |
989 | nla_nest_end(msg, act_info); | |
a254c264 MS |
990 | } |
991 | nla_nest_end(msg, reload_stats_attr); | |
992 | return 0; | |
993 | ||
5204bb68 MS |
994 | action_stats_nest_cancel: |
995 | nla_nest_cancel(msg, act_stats); | |
996 | action_info_nest_cancel: | |
997 | nla_nest_cancel(msg, act_info); | |
a254c264 MS |
998 | nla_put_failure: |
999 | nla_nest_cancel(msg, reload_stats_attr); | |
1000 | return -EMSGSIZE; | |
1001 | } | |
1002 | ||
bfcd3a46 JP |
1003 | static int devlink_nl_fill(struct sk_buff *msg, struct devlink *devlink, |
1004 | enum devlink_command cmd, u32 portid, | |
1005 | u32 seq, int flags) | |
1006 | { | |
a254c264 | 1007 | struct nlattr *dev_stats; |
bfcd3a46 JP |
1008 | void *hdr; |
1009 | ||
1010 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
1011 | if (!hdr) | |
1012 | return -EMSGSIZE; | |
1013 | ||
1014 | if (devlink_nl_put_handle(msg, devlink)) | |
1015 | goto nla_put_failure; | |
2670ac26 JP |
1016 | if (nla_put_u8(msg, DEVLINK_ATTR_RELOAD_FAILED, devlink->reload_failed)) |
1017 | goto nla_put_failure; | |
bfcd3a46 | 1018 | |
a254c264 MS |
1019 | dev_stats = nla_nest_start(msg, DEVLINK_ATTR_DEV_STATS); |
1020 | if (!dev_stats) | |
1021 | goto nla_put_failure; | |
1022 | ||
77069ba2 MS |
1023 | if (devlink_reload_stats_put(msg, devlink, false)) |
1024 | goto dev_stats_nest_cancel; | |
1025 | if (devlink_reload_stats_put(msg, devlink, true)) | |
a254c264 MS |
1026 | goto dev_stats_nest_cancel; |
1027 | ||
1028 | nla_nest_end(msg, dev_stats); | |
bfcd3a46 JP |
1029 | genlmsg_end(msg, hdr); |
1030 | return 0; | |
1031 | ||
a254c264 MS |
1032 | dev_stats_nest_cancel: |
1033 | nla_nest_cancel(msg, dev_stats); | |
bfcd3a46 JP |
1034 | nla_put_failure: |
1035 | genlmsg_cancel(msg, hdr); | |
1036 | return -EMSGSIZE; | |
1037 | } | |
1038 | ||
1039 | static void devlink_notify(struct devlink *devlink, enum devlink_command cmd) | |
1040 | { | |
1041 | struct sk_buff *msg; | |
1042 | int err; | |
1043 | ||
1044 | WARN_ON(cmd != DEVLINK_CMD_NEW && cmd != DEVLINK_CMD_DEL); | |
cf530217 | 1045 | WARN_ON(!xa_get_mark(&devlinks, devlink->index, DEVLINK_REGISTERED)); |
bfcd3a46 JP |
1046 | |
1047 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
1048 | if (!msg) | |
1049 | return; | |
1050 | ||
1051 | err = devlink_nl_fill(msg, devlink, cmd, 0, 0, 0); | |
1052 | if (err) { | |
1053 | nlmsg_free(msg); | |
1054 | return; | |
1055 | } | |
1056 | ||
1057 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), | |
1058 | msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
1059 | } | |
1060 | ||
b9ffcbaf JP |
1061 | static int devlink_nl_port_attrs_put(struct sk_buff *msg, |
1062 | struct devlink_port *devlink_port) | |
1063 | { | |
1064 | struct devlink_port_attrs *attrs = &devlink_port->attrs; | |
1065 | ||
10a429ba | 1066 | if (!devlink_port->attrs_set) |
b9ffcbaf | 1067 | return 0; |
a21cf0a8 DR |
1068 | if (attrs->lanes) { |
1069 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_LANES, attrs->lanes)) | |
1070 | return -EMSGSIZE; | |
1071 | } | |
a0f49b54 DR |
1072 | if (nla_put_u8(msg, DEVLINK_ATTR_PORT_SPLITTABLE, attrs->splittable)) |
1073 | return -EMSGSIZE; | |
5ec1380a JP |
1074 | if (nla_put_u16(msg, DEVLINK_ATTR_PORT_FLAVOUR, attrs->flavour)) |
1075 | return -EMSGSIZE; | |
58b6be41 PP |
1076 | switch (devlink_port->attrs.flavour) { |
1077 | case DEVLINK_PORT_FLAVOUR_PCI_PF: | |
3a2d9588 PP |
1078 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_CONTROLLER_NUMBER, |
1079 | attrs->pci_pf.controller) || | |
1080 | nla_put_u16(msg, DEVLINK_ATTR_PORT_PCI_PF_NUMBER, attrs->pci_pf.pf)) | |
98fd2d65 | 1081 | return -EMSGSIZE; |
05b595e9 PP |
1082 | if (nla_put_u8(msg, DEVLINK_ATTR_PORT_EXTERNAL, attrs->pci_pf.external)) |
1083 | return -EMSGSIZE; | |
58b6be41 PP |
1084 | break; |
1085 | case DEVLINK_PORT_FLAVOUR_PCI_VF: | |
3a2d9588 PP |
1086 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_CONTROLLER_NUMBER, |
1087 | attrs->pci_vf.controller) || | |
1088 | nla_put_u16(msg, DEVLINK_ATTR_PORT_PCI_PF_NUMBER, attrs->pci_vf.pf) || | |
1089 | nla_put_u16(msg, DEVLINK_ATTR_PORT_PCI_VF_NUMBER, attrs->pci_vf.vf)) | |
e41b6bf3 | 1090 | return -EMSGSIZE; |
05b595e9 PP |
1091 | if (nla_put_u8(msg, DEVLINK_ATTR_PORT_EXTERNAL, attrs->pci_vf.external)) |
1092 | return -EMSGSIZE; | |
58b6be41 | 1093 | break; |
b8288837 PP |
1094 | case DEVLINK_PORT_FLAVOUR_PCI_SF: |
1095 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_CONTROLLER_NUMBER, | |
1096 | attrs->pci_sf.controller) || | |
1097 | nla_put_u16(msg, DEVLINK_ATTR_PORT_PCI_PF_NUMBER, | |
1098 | attrs->pci_sf.pf) || | |
1099 | nla_put_u32(msg, DEVLINK_ATTR_PORT_PCI_SF_NUMBER, | |
1100 | attrs->pci_sf.sf)) | |
1101 | return -EMSGSIZE; | |
1102 | break; | |
58b6be41 PP |
1103 | case DEVLINK_PORT_FLAVOUR_PHYSICAL: |
1104 | case DEVLINK_PORT_FLAVOUR_CPU: | |
1105 | case DEVLINK_PORT_FLAVOUR_DSA: | |
1106 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_NUMBER, | |
1107 | attrs->phys.port_number)) | |
1108 | return -EMSGSIZE; | |
1109 | if (!attrs->split) | |
1110 | return 0; | |
1111 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_SPLIT_GROUP, | |
1112 | attrs->phys.port_number)) | |
1113 | return -EMSGSIZE; | |
1114 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_SPLIT_SUBPORT_NUMBER, | |
1115 | attrs->phys.split_subport_number)) | |
1116 | return -EMSGSIZE; | |
1117 | break; | |
1118 | default: | |
1119 | break; | |
98fd2d65 | 1120 | } |
b9ffcbaf JP |
1121 | return 0; |
1122 | } | |
1123 | ||
82564f6c LR |
1124 | static int devlink_port_fn_hw_addr_fill(const struct devlink_ops *ops, |
1125 | struct devlink_port *port, | |
1126 | struct sk_buff *msg, | |
1127 | struct netlink_ext_ack *extack, | |
1128 | bool *msg_updated) | |
1230d948 PP |
1129 | { |
1130 | u8 hw_addr[MAX_ADDR_LEN]; | |
1131 | int hw_addr_len; | |
1132 | int err; | |
1133 | ||
1134 | if (!ops->port_function_hw_addr_get) | |
1135 | return 0; | |
1136 | ||
82564f6c LR |
1137 | err = ops->port_function_hw_addr_get(port, hw_addr, &hw_addr_len, |
1138 | extack); | |
1230d948 PP |
1139 | if (err) { |
1140 | if (err == -EOPNOTSUPP) | |
1141 | return 0; | |
1142 | return err; | |
1143 | } | |
1144 | err = nla_put(msg, DEVLINK_PORT_FUNCTION_ATTR_HW_ADDR, hw_addr_len, hw_addr); | |
1145 | if (err) | |
1146 | return err; | |
1147 | *msg_updated = true; | |
1148 | return 0; | |
1149 | } | |
1150 | ||
4677efc4 | 1151 | static int devlink_nl_rate_fill(struct sk_buff *msg, |
4677efc4 | 1152 | struct devlink_rate *devlink_rate, |
7ca973dc LR |
1153 | enum devlink_command cmd, u32 portid, u32 seq, |
1154 | int flags, struct netlink_ext_ack *extack) | |
4677efc4 | 1155 | { |
7ca973dc | 1156 | struct devlink *devlink = devlink_rate->devlink; |
4677efc4 DL |
1157 | void *hdr; |
1158 | ||
1159 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
1160 | if (!hdr) | |
1161 | return -EMSGSIZE; | |
1162 | ||
1163 | if (devlink_nl_put_handle(msg, devlink)) | |
1164 | goto nla_put_failure; | |
1165 | ||
1166 | if (nla_put_u16(msg, DEVLINK_ATTR_RATE_TYPE, devlink_rate->type)) | |
1167 | goto nla_put_failure; | |
1168 | ||
1169 | if (devlink_rate_is_leaf(devlink_rate)) { | |
1170 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, | |
1171 | devlink_rate->devlink_port->index)) | |
1172 | goto nla_put_failure; | |
a8ecb93e DL |
1173 | } else if (devlink_rate_is_node(devlink_rate)) { |
1174 | if (nla_put_string(msg, DEVLINK_ATTR_RATE_NODE_NAME, | |
1175 | devlink_rate->name)) | |
1176 | goto nla_put_failure; | |
4677efc4 DL |
1177 | } |
1178 | ||
1897db2e DL |
1179 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_RATE_TX_SHARE, |
1180 | devlink_rate->tx_share, DEVLINK_ATTR_PAD)) | |
1181 | goto nla_put_failure; | |
1182 | ||
1183 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_RATE_TX_MAX, | |
1184 | devlink_rate->tx_max, DEVLINK_ATTR_PAD)) | |
1185 | goto nla_put_failure; | |
1186 | ||
d7555984 DL |
1187 | if (devlink_rate->parent) |
1188 | if (nla_put_string(msg, DEVLINK_ATTR_RATE_PARENT_NODE_NAME, | |
1189 | devlink_rate->parent->name)) | |
1190 | goto nla_put_failure; | |
1191 | ||
4677efc4 DL |
1192 | genlmsg_end(msg, hdr); |
1193 | return 0; | |
1194 | ||
1195 | nla_put_failure: | |
1196 | genlmsg_cancel(msg, hdr); | |
1197 | return -EMSGSIZE; | |
1198 | } | |
1199 | ||
a556dded PP |
1200 | static bool |
1201 | devlink_port_fn_state_valid(enum devlink_port_fn_state state) | |
1202 | { | |
1203 | return state == DEVLINK_PORT_FN_STATE_INACTIVE || | |
1204 | state == DEVLINK_PORT_FN_STATE_ACTIVE; | |
1205 | } | |
1206 | ||
1207 | static bool | |
1208 | devlink_port_fn_opstate_valid(enum devlink_port_fn_opstate opstate) | |
1209 | { | |
1210 | return opstate == DEVLINK_PORT_FN_OPSTATE_DETACHED || | |
1211 | opstate == DEVLINK_PORT_FN_OPSTATE_ATTACHED; | |
1212 | } | |
1213 | ||
82564f6c LR |
1214 | static int devlink_port_fn_state_fill(const struct devlink_ops *ops, |
1215 | struct devlink_port *port, | |
1216 | struct sk_buff *msg, | |
1217 | struct netlink_ext_ack *extack, | |
1218 | bool *msg_updated) | |
a556dded PP |
1219 | { |
1220 | enum devlink_port_fn_opstate opstate; | |
1221 | enum devlink_port_fn_state state; | |
1222 | int err; | |
1223 | ||
1224 | if (!ops->port_fn_state_get) | |
1225 | return 0; | |
1226 | ||
82564f6c | 1227 | err = ops->port_fn_state_get(port, &state, &opstate, extack); |
a556dded PP |
1228 | if (err) { |
1229 | if (err == -EOPNOTSUPP) | |
1230 | return 0; | |
1231 | return err; | |
1232 | } | |
1233 | if (!devlink_port_fn_state_valid(state)) { | |
1234 | WARN_ON_ONCE(1); | |
1235 | NL_SET_ERR_MSG_MOD(extack, "Invalid state read from driver"); | |
1236 | return -EINVAL; | |
1237 | } | |
1238 | if (!devlink_port_fn_opstate_valid(opstate)) { | |
1239 | WARN_ON_ONCE(1); | |
1240 | NL_SET_ERR_MSG_MOD(extack, | |
1241 | "Invalid operational state read from driver"); | |
1242 | return -EINVAL; | |
1243 | } | |
1244 | if (nla_put_u8(msg, DEVLINK_PORT_FN_ATTR_STATE, state) || | |
1245 | nla_put_u8(msg, DEVLINK_PORT_FN_ATTR_OPSTATE, opstate)) | |
1246 | return -EMSGSIZE; | |
1247 | *msg_updated = true; | |
1248 | return 0; | |
1249 | } | |
1250 | ||
2a916ecc PP |
1251 | static int |
1252 | devlink_nl_port_function_attrs_put(struct sk_buff *msg, struct devlink_port *port, | |
1253 | struct netlink_ext_ack *extack) | |
1254 | { | |
2a916ecc PP |
1255 | const struct devlink_ops *ops; |
1256 | struct nlattr *function_attr; | |
1230d948 PP |
1257 | bool msg_updated = false; |
1258 | int err; | |
2a916ecc PP |
1259 | |
1260 | function_attr = nla_nest_start_noflag(msg, DEVLINK_ATTR_PORT_FUNCTION); | |
1261 | if (!function_attr) | |
1262 | return -EMSGSIZE; | |
1263 | ||
82564f6c LR |
1264 | ops = port->devlink->ops; |
1265 | err = devlink_port_fn_hw_addr_fill(ops, port, msg, extack, | |
1266 | &msg_updated); | |
a556dded PP |
1267 | if (err) |
1268 | goto out; | |
82564f6c | 1269 | err = devlink_port_fn_state_fill(ops, port, msg, extack, &msg_updated); |
2a916ecc | 1270 | out: |
1230d948 | 1271 | if (err || !msg_updated) |
2a916ecc PP |
1272 | nla_nest_cancel(msg, function_attr); |
1273 | else | |
1274 | nla_nest_end(msg, function_attr); | |
1275 | return err; | |
1276 | } | |
1277 | ||
7ca973dc | 1278 | static int devlink_nl_port_fill(struct sk_buff *msg, |
bfcd3a46 | 1279 | struct devlink_port *devlink_port, |
7ca973dc LR |
1280 | enum devlink_command cmd, u32 portid, u32 seq, |
1281 | int flags, struct netlink_ext_ack *extack) | |
bfcd3a46 | 1282 | { |
7ca973dc | 1283 | struct devlink *devlink = devlink_port->devlink; |
bfcd3a46 JP |
1284 | void *hdr; |
1285 | ||
1286 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
1287 | if (!hdr) | |
1288 | return -EMSGSIZE; | |
1289 | ||
1290 | if (devlink_nl_put_handle(msg, devlink)) | |
1291 | goto nla_put_failure; | |
1292 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, devlink_port->index)) | |
1293 | goto nla_put_failure; | |
b8f97554 | 1294 | |
b187c9b4 PP |
1295 | /* Hold rtnl lock while accessing port's netdev attributes. */ |
1296 | rtnl_lock(); | |
0f420b6c | 1297 | spin_lock_bh(&devlink_port->type_lock); |
bfcd3a46 | 1298 | if (nla_put_u16(msg, DEVLINK_ATTR_PORT_TYPE, devlink_port->type)) |
b8f97554 | 1299 | goto nla_put_failure_type_locked; |
bfcd3a46 JP |
1300 | if (devlink_port->desired_type != DEVLINK_PORT_TYPE_NOTSET && |
1301 | nla_put_u16(msg, DEVLINK_ATTR_PORT_DESIRED_TYPE, | |
1302 | devlink_port->desired_type)) | |
b8f97554 | 1303 | goto nla_put_failure_type_locked; |
bfcd3a46 | 1304 | if (devlink_port->type == DEVLINK_PORT_TYPE_ETH) { |
a7b43649 | 1305 | struct net *net = devlink_net(devlink_port->devlink); |
3830c571 | 1306 | struct net_device *netdev = devlink_port->type_eth.netdev; |
bfcd3a46 | 1307 | |
a7b43649 | 1308 | if (netdev && net_eq(net, dev_net(netdev)) && |
bfcd3a46 JP |
1309 | (nla_put_u32(msg, DEVLINK_ATTR_PORT_NETDEV_IFINDEX, |
1310 | netdev->ifindex) || | |
1311 | nla_put_string(msg, DEVLINK_ATTR_PORT_NETDEV_NAME, | |
1312 | netdev->name))) | |
b8f97554 | 1313 | goto nla_put_failure_type_locked; |
bfcd3a46 JP |
1314 | } |
1315 | if (devlink_port->type == DEVLINK_PORT_TYPE_IB) { | |
3830c571 | 1316 | struct ib_device *ibdev = devlink_port->type_ib.ibdev; |
bfcd3a46 JP |
1317 | |
1318 | if (ibdev && | |
1319 | nla_put_string(msg, DEVLINK_ATTR_PORT_IBDEV_NAME, | |
1320 | ibdev->name)) | |
b8f97554 | 1321 | goto nla_put_failure_type_locked; |
bfcd3a46 | 1322 | } |
0f420b6c | 1323 | spin_unlock_bh(&devlink_port->type_lock); |
b187c9b4 | 1324 | rtnl_unlock(); |
b9ffcbaf | 1325 | if (devlink_nl_port_attrs_put(msg, devlink_port)) |
bfcd3a46 | 1326 | goto nla_put_failure; |
2a916ecc PP |
1327 | if (devlink_nl_port_function_attrs_put(msg, devlink_port, extack)) |
1328 | goto nla_put_failure; | |
b8375859 JP |
1329 | if (devlink_port->linecard && |
1330 | nla_put_u32(msg, DEVLINK_ATTR_LINECARD_INDEX, | |
1331 | devlink_port->linecard->index)) | |
1332 | goto nla_put_failure; | |
bfcd3a46 JP |
1333 | |
1334 | genlmsg_end(msg, hdr); | |
1335 | return 0; | |
1336 | ||
b8f97554 | 1337 | nla_put_failure_type_locked: |
0f420b6c | 1338 | spin_unlock_bh(&devlink_port->type_lock); |
b187c9b4 | 1339 | rtnl_unlock(); |
bfcd3a46 JP |
1340 | nla_put_failure: |
1341 | genlmsg_cancel(msg, hdr); | |
1342 | return -EMSGSIZE; | |
1343 | } | |
1344 | ||
1345 | static void devlink_port_notify(struct devlink_port *devlink_port, | |
1346 | enum devlink_command cmd) | |
1347 | { | |
cf530217 | 1348 | struct devlink *devlink = devlink_port->devlink; |
bfcd3a46 JP |
1349 | struct sk_buff *msg; |
1350 | int err; | |
1351 | ||
bfcd3a46 JP |
1352 | WARN_ON(cmd != DEVLINK_CMD_PORT_NEW && cmd != DEVLINK_CMD_PORT_DEL); |
1353 | ||
cf530217 LR |
1354 | if (!xa_get_mark(&devlinks, devlink->index, DEVLINK_REGISTERED)) |
1355 | return; | |
1356 | ||
bfcd3a46 JP |
1357 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
1358 | if (!msg) | |
1359 | return; | |
1360 | ||
7ca973dc | 1361 | err = devlink_nl_port_fill(msg, devlink_port, cmd, 0, 0, 0, NULL); |
bfcd3a46 JP |
1362 | if (err) { |
1363 | nlmsg_free(msg); | |
1364 | return; | |
1365 | } | |
1366 | ||
cf530217 LR |
1367 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), msg, |
1368 | 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
bfcd3a46 JP |
1369 | } |
1370 | ||
4677efc4 DL |
1371 | static void devlink_rate_notify(struct devlink_rate *devlink_rate, |
1372 | enum devlink_command cmd) | |
1373 | { | |
cf530217 | 1374 | struct devlink *devlink = devlink_rate->devlink; |
4677efc4 DL |
1375 | struct sk_buff *msg; |
1376 | int err; | |
1377 | ||
7ca973dc | 1378 | WARN_ON(cmd != DEVLINK_CMD_RATE_NEW && cmd != DEVLINK_CMD_RATE_DEL); |
ef91abfb LR |
1379 | |
1380 | if (!xa_get_mark(&devlinks, devlink->index, DEVLINK_REGISTERED)) | |
1381 | return; | |
4677efc4 DL |
1382 | |
1383 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
1384 | if (!msg) | |
1385 | return; | |
1386 | ||
7ca973dc | 1387 | err = devlink_nl_rate_fill(msg, devlink_rate, cmd, 0, 0, 0, NULL); |
4677efc4 DL |
1388 | if (err) { |
1389 | nlmsg_free(msg); | |
1390 | return; | |
1391 | } | |
1392 | ||
cf530217 LR |
1393 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), msg, |
1394 | 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
4677efc4 DL |
1395 | } |
1396 | ||
1397 | static int devlink_nl_cmd_rate_get_dumpit(struct sk_buff *msg, | |
1398 | struct netlink_callback *cb) | |
1399 | { | |
1400 | struct devlink_rate *devlink_rate; | |
1401 | struct devlink *devlink; | |
1402 | int start = cb->args[0]; | |
11a861d7 | 1403 | unsigned long index; |
4677efc4 DL |
1404 | int idx = 0; |
1405 | int err = 0; | |
1406 | ||
294c4f57 | 1407 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
7715023a | 1408 | devl_lock(devlink); |
4677efc4 DL |
1409 | list_for_each_entry(devlink_rate, &devlink->rate_list, list) { |
1410 | enum devlink_command cmd = DEVLINK_CMD_RATE_NEW; | |
1411 | u32 id = NETLINK_CB(cb->skb).portid; | |
1412 | ||
1413 | if (idx < start) { | |
1414 | idx++; | |
1415 | continue; | |
1416 | } | |
7ca973dc | 1417 | err = devlink_nl_rate_fill(msg, devlink_rate, cmd, id, |
4677efc4 DL |
1418 | cb->nlh->nlmsg_seq, |
1419 | NLM_F_MULTI, NULL); | |
1420 | if (err) { | |
7715023a | 1421 | devl_unlock(devlink); |
437ebfd9 | 1422 | devlink_put(devlink); |
4677efc4 DL |
1423 | goto out; |
1424 | } | |
1425 | idx++; | |
1426 | } | |
7715023a | 1427 | devl_unlock(devlink); |
437ebfd9 | 1428 | devlink_put(devlink); |
4677efc4 DL |
1429 | } |
1430 | out: | |
4677efc4 DL |
1431 | if (err != -EMSGSIZE) |
1432 | return err; | |
1433 | ||
1434 | cb->args[0] = idx; | |
1435 | return msg->len; | |
1436 | } | |
1437 | ||
1438 | static int devlink_nl_cmd_rate_get_doit(struct sk_buff *skb, | |
1439 | struct genl_info *info) | |
1440 | { | |
1441 | struct devlink_rate *devlink_rate = info->user_ptr[1]; | |
4677efc4 DL |
1442 | struct sk_buff *msg; |
1443 | int err; | |
1444 | ||
1445 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
1446 | if (!msg) | |
1447 | return -ENOMEM; | |
1448 | ||
7ca973dc | 1449 | err = devlink_nl_rate_fill(msg, devlink_rate, DEVLINK_CMD_RATE_NEW, |
4677efc4 DL |
1450 | info->snd_portid, info->snd_seq, 0, |
1451 | info->extack); | |
1452 | if (err) { | |
1453 | nlmsg_free(msg); | |
1454 | return err; | |
1455 | } | |
1456 | ||
1457 | return genlmsg_reply(msg, info); | |
1458 | } | |
1459 | ||
d7555984 DL |
1460 | static bool |
1461 | devlink_rate_is_parent_node(struct devlink_rate *devlink_rate, | |
1462 | struct devlink_rate *parent) | |
1463 | { | |
1464 | while (parent) { | |
1465 | if (parent == devlink_rate) | |
1466 | return true; | |
1467 | parent = parent->parent; | |
1468 | } | |
1469 | return false; | |
1470 | } | |
1471 | ||
bfcd3a46 JP |
1472 | static int devlink_nl_cmd_get_doit(struct sk_buff *skb, struct genl_info *info) |
1473 | { | |
1474 | struct devlink *devlink = info->user_ptr[0]; | |
1475 | struct sk_buff *msg; | |
1476 | int err; | |
1477 | ||
1478 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
1479 | if (!msg) | |
1480 | return -ENOMEM; | |
1481 | ||
1482 | err = devlink_nl_fill(msg, devlink, DEVLINK_CMD_NEW, | |
1483 | info->snd_portid, info->snd_seq, 0); | |
1484 | if (err) { | |
1485 | nlmsg_free(msg); | |
1486 | return err; | |
1487 | } | |
1488 | ||
1489 | return genlmsg_reply(msg, info); | |
1490 | } | |
1491 | ||
1492 | static int devlink_nl_cmd_get_dumpit(struct sk_buff *msg, | |
1493 | struct netlink_callback *cb) | |
1494 | { | |
1495 | struct devlink *devlink; | |
1496 | int start = cb->args[0]; | |
11a861d7 | 1497 | unsigned long index; |
bfcd3a46 JP |
1498 | int idx = 0; |
1499 | int err; | |
1500 | ||
294c4f57 | 1501 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
bfcd3a46 JP |
1502 | if (idx < start) { |
1503 | idx++; | |
437ebfd9 | 1504 | devlink_put(devlink); |
bfcd3a46 JP |
1505 | continue; |
1506 | } | |
437ebfd9 | 1507 | |
bfcd3a46 JP |
1508 | err = devlink_nl_fill(msg, devlink, DEVLINK_CMD_NEW, |
1509 | NETLINK_CB(cb->skb).portid, | |
1510 | cb->nlh->nlmsg_seq, NLM_F_MULTI); | |
437ebfd9 | 1511 | devlink_put(devlink); |
bfcd3a46 JP |
1512 | if (err) |
1513 | goto out; | |
1514 | idx++; | |
1515 | } | |
1516 | out: | |
bfcd3a46 JP |
1517 | cb->args[0] = idx; |
1518 | return msg->len; | |
1519 | } | |
1520 | ||
1521 | static int devlink_nl_cmd_port_get_doit(struct sk_buff *skb, | |
1522 | struct genl_info *info) | |
1523 | { | |
637989b5 | 1524 | struct devlink_port *devlink_port = info->user_ptr[1]; |
bfcd3a46 JP |
1525 | struct sk_buff *msg; |
1526 | int err; | |
1527 | ||
1528 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
1529 | if (!msg) | |
1530 | return -ENOMEM; | |
1531 | ||
7ca973dc | 1532 | err = devlink_nl_port_fill(msg, devlink_port, DEVLINK_CMD_PORT_NEW, |
a829eb0d PP |
1533 | info->snd_portid, info->snd_seq, 0, |
1534 | info->extack); | |
bfcd3a46 JP |
1535 | if (err) { |
1536 | nlmsg_free(msg); | |
1537 | return err; | |
1538 | } | |
1539 | ||
1540 | return genlmsg_reply(msg, info); | |
1541 | } | |
1542 | ||
1543 | static int devlink_nl_cmd_port_get_dumpit(struct sk_buff *msg, | |
1544 | struct netlink_callback *cb) | |
1545 | { | |
1546 | struct devlink *devlink; | |
1547 | struct devlink_port *devlink_port; | |
1548 | int start = cb->args[0]; | |
11a861d7 | 1549 | unsigned long index; |
bfcd3a46 JP |
1550 | int idx = 0; |
1551 | int err; | |
1552 | ||
294c4f57 | 1553 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
7715023a | 1554 | devl_lock(devlink); |
bfcd3a46 JP |
1555 | list_for_each_entry(devlink_port, &devlink->port_list, list) { |
1556 | if (idx < start) { | |
1557 | idx++; | |
1558 | continue; | |
1559 | } | |
7ca973dc | 1560 | err = devlink_nl_port_fill(msg, devlink_port, |
bfcd3a46 JP |
1561 | DEVLINK_CMD_NEW, |
1562 | NETLINK_CB(cb->skb).portid, | |
1563 | cb->nlh->nlmsg_seq, | |
7ca973dc | 1564 | NLM_F_MULTI, cb->extack); |
2406e7e5 | 1565 | if (err) { |
7715023a | 1566 | devl_unlock(devlink); |
437ebfd9 | 1567 | devlink_put(devlink); |
bfcd3a46 | 1568 | goto out; |
2406e7e5 | 1569 | } |
bfcd3a46 JP |
1570 | idx++; |
1571 | } | |
7715023a | 1572 | devl_unlock(devlink); |
437ebfd9 | 1573 | devlink_put(devlink); |
bfcd3a46 JP |
1574 | } |
1575 | out: | |
bfcd3a46 JP |
1576 | cb->args[0] = idx; |
1577 | return msg->len; | |
1578 | } | |
1579 | ||
82564f6c | 1580 | static int devlink_port_type_set(struct devlink_port *devlink_port, |
bfcd3a46 JP |
1581 | enum devlink_port_type port_type) |
1582 | ||
1583 | { | |
1584 | int err; | |
1585 | ||
2a2b6e36 | 1586 | if (!devlink_port->devlink->ops->port_type_set) |
82564f6c LR |
1587 | return -EOPNOTSUPP; |
1588 | ||
1589 | if (port_type == devlink_port->type) | |
bfcd3a46 | 1590 | return 0; |
82564f6c LR |
1591 | |
1592 | err = devlink_port->devlink->ops->port_type_set(devlink_port, | |
1593 | port_type); | |
1594 | if (err) | |
1595 | return err; | |
1596 | ||
1597 | devlink_port->desired_type = port_type; | |
1598 | devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_NEW); | |
1599 | return 0; | |
bfcd3a46 JP |
1600 | } |
1601 | ||
82564f6c LR |
1602 | static int devlink_port_function_hw_addr_set(struct devlink_port *port, |
1603 | const struct nlattr *attr, | |
1604 | struct netlink_ext_ack *extack) | |
a1e8ae90 | 1605 | { |
82564f6c | 1606 | const struct devlink_ops *ops = port->devlink->ops; |
a1e8ae90 PP |
1607 | const u8 *hw_addr; |
1608 | int hw_addr_len; | |
a1e8ae90 PP |
1609 | |
1610 | hw_addr = nla_data(attr); | |
1611 | hw_addr_len = nla_len(attr); | |
1612 | if (hw_addr_len > MAX_ADDR_LEN) { | |
1613 | NL_SET_ERR_MSG_MOD(extack, "Port function hardware address too long"); | |
1614 | return -EINVAL; | |
1615 | } | |
1616 | if (port->type == DEVLINK_PORT_TYPE_ETH) { | |
1617 | if (hw_addr_len != ETH_ALEN) { | |
1618 | NL_SET_ERR_MSG_MOD(extack, "Address must be 6 bytes for Ethernet device"); | |
1619 | return -EINVAL; | |
1620 | } | |
1621 | if (!is_unicast_ether_addr(hw_addr)) { | |
1622 | NL_SET_ERR_MSG_MOD(extack, "Non-unicast hardware address unsupported"); | |
1623 | return -EINVAL; | |
1624 | } | |
1625 | } | |
1626 | ||
a1e8ae90 PP |
1627 | if (!ops->port_function_hw_addr_set) { |
1628 | NL_SET_ERR_MSG_MOD(extack, "Port doesn't support function attributes"); | |
1629 | return -EOPNOTSUPP; | |
1630 | } | |
1631 | ||
82564f6c LR |
1632 | return ops->port_function_hw_addr_set(port, hw_addr, hw_addr_len, |
1633 | extack); | |
a1e8ae90 | 1634 | } |
a1e8ae90 | 1635 | |
82564f6c | 1636 | static int devlink_port_fn_state_set(struct devlink_port *port, |
a556dded PP |
1637 | const struct nlattr *attr, |
1638 | struct netlink_ext_ack *extack) | |
1639 | { | |
1640 | enum devlink_port_fn_state state; | |
1641 | const struct devlink_ops *ops; | |
1642 | ||
1643 | state = nla_get_u8(attr); | |
82564f6c | 1644 | ops = port->devlink->ops; |
a556dded PP |
1645 | if (!ops->port_fn_state_set) { |
1646 | NL_SET_ERR_MSG_MOD(extack, | |
1647 | "Function does not support state setting"); | |
1648 | return -EOPNOTSUPP; | |
1649 | } | |
82564f6c | 1650 | return ops->port_fn_state_set(port, state, extack); |
a1e8ae90 PP |
1651 | } |
1652 | ||
82564f6c LR |
1653 | static int devlink_port_function_set(struct devlink_port *port, |
1654 | const struct nlattr *attr, | |
1655 | struct netlink_ext_ack *extack) | |
a1e8ae90 PP |
1656 | { |
1657 | struct nlattr *tb[DEVLINK_PORT_FUNCTION_ATTR_MAX + 1]; | |
1658 | int err; | |
1659 | ||
1660 | err = nla_parse_nested(tb, DEVLINK_PORT_FUNCTION_ATTR_MAX, attr, | |
1661 | devlink_function_nl_policy, extack); | |
1662 | if (err < 0) { | |
1663 | NL_SET_ERR_MSG_MOD(extack, "Fail to parse port function attributes"); | |
1664 | return err; | |
1665 | } | |
1666 | ||
1667 | attr = tb[DEVLINK_PORT_FUNCTION_ATTR_HW_ADDR]; | |
a556dded | 1668 | if (attr) { |
82564f6c | 1669 | err = devlink_port_function_hw_addr_set(port, attr, extack); |
a556dded PP |
1670 | if (err) |
1671 | return err; | |
1672 | } | |
1673 | /* Keep this as the last function attribute set, so that when | |
1674 | * multiple port function attributes are set along with state, | |
1675 | * Those can be applied first before activating the state. | |
1676 | */ | |
1677 | attr = tb[DEVLINK_PORT_FN_ATTR_STATE]; | |
1678 | if (attr) | |
82564f6c | 1679 | err = devlink_port_fn_state_set(port, attr, extack); |
a1e8ae90 | 1680 | |
1230d948 PP |
1681 | if (!err) |
1682 | devlink_port_notify(port, DEVLINK_CMD_PORT_NEW); | |
a1e8ae90 PP |
1683 | return err; |
1684 | } | |
1685 | ||
bfcd3a46 JP |
1686 | static int devlink_nl_cmd_port_set_doit(struct sk_buff *skb, |
1687 | struct genl_info *info) | |
1688 | { | |
637989b5 | 1689 | struct devlink_port *devlink_port = info->user_ptr[1]; |
bfcd3a46 JP |
1690 | int err; |
1691 | ||
1692 | if (info->attrs[DEVLINK_ATTR_PORT_TYPE]) { | |
1693 | enum devlink_port_type port_type; | |
1694 | ||
1695 | port_type = nla_get_u16(info->attrs[DEVLINK_ATTR_PORT_TYPE]); | |
82564f6c | 1696 | err = devlink_port_type_set(devlink_port, port_type); |
bfcd3a46 JP |
1697 | if (err) |
1698 | return err; | |
1699 | } | |
a1e8ae90 PP |
1700 | |
1701 | if (info->attrs[DEVLINK_ATTR_PORT_FUNCTION]) { | |
1702 | struct nlattr *attr = info->attrs[DEVLINK_ATTR_PORT_FUNCTION]; | |
1703 | struct netlink_ext_ack *extack = info->extack; | |
1704 | ||
82564f6c | 1705 | err = devlink_port_function_set(devlink_port, attr, extack); |
a1e8ae90 PP |
1706 | if (err) |
1707 | return err; | |
1708 | } | |
1709 | ||
bfcd3a46 JP |
1710 | return 0; |
1711 | } | |
1712 | ||
bfcd3a46 JP |
1713 | static int devlink_nl_cmd_port_split_doit(struct sk_buff *skb, |
1714 | struct genl_info *info) | |
1715 | { | |
706217c1 | 1716 | struct devlink_port *devlink_port = info->user_ptr[1]; |
bfcd3a46 | 1717 | struct devlink *devlink = info->user_ptr[0]; |
bfcd3a46 JP |
1718 | u32 count; |
1719 | ||
1f7633b5 | 1720 | if (GENL_REQ_ATTR_CHECK(info, DEVLINK_ATTR_PORT_SPLIT_COUNT)) |
bfcd3a46 | 1721 | return -EINVAL; |
706217c1 JK |
1722 | if (!devlink->ops->port_split) |
1723 | return -EOPNOTSUPP; | |
bfcd3a46 | 1724 | |
bfcd3a46 | 1725 | count = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_SPLIT_COUNT]); |
82901ad1 | 1726 | |
82901ad1 DR |
1727 | if (!devlink_port->attrs.splittable) { |
1728 | /* Split ports cannot be split. */ | |
1729 | if (devlink_port->attrs.split) | |
1730 | NL_SET_ERR_MSG_MOD(info->extack, "Port cannot be split further"); | |
1731 | else | |
1732 | NL_SET_ERR_MSG_MOD(info->extack, "Port cannot be split"); | |
1733 | return -EINVAL; | |
1734 | } | |
1735 | ||
1736 | if (count < 2 || !is_power_of_2(count) || count > devlink_port->attrs.lanes) { | |
1737 | NL_SET_ERR_MSG_MOD(info->extack, "Invalid split count"); | |
1738 | return -EINVAL; | |
1739 | } | |
1740 | ||
706217c1 JK |
1741 | return devlink->ops->port_split(devlink, devlink_port, count, |
1742 | info->extack); | |
bfcd3a46 JP |
1743 | } |
1744 | ||
1745 | static int devlink_nl_cmd_port_unsplit_doit(struct sk_buff *skb, | |
1746 | struct genl_info *info) | |
1747 | { | |
706217c1 | 1748 | struct devlink_port *devlink_port = info->user_ptr[1]; |
bfcd3a46 | 1749 | struct devlink *devlink = info->user_ptr[0]; |
bfcd3a46 | 1750 | |
706217c1 JK |
1751 | if (!devlink->ops->port_unsplit) |
1752 | return -EOPNOTSUPP; | |
1753 | return devlink->ops->port_unsplit(devlink, devlink_port, info->extack); | |
bfcd3a46 JP |
1754 | } |
1755 | ||
ced92571 JP |
1756 | static int devlink_port_new_notify(struct devlink *devlink, |
1757 | unsigned int port_index, | |
1758 | struct genl_info *info) | |
cd76dcd6 PP |
1759 | { |
1760 | struct devlink_port *devlink_port; | |
1761 | struct sk_buff *msg; | |
1762 | int err; | |
1763 | ||
1764 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
1765 | if (!msg) | |
1766 | return -ENOMEM; | |
1767 | ||
f0680ef0 | 1768 | lockdep_assert_held(&devlink->lock); |
cd76dcd6 PP |
1769 | devlink_port = devlink_port_get_by_index(devlink, port_index); |
1770 | if (!devlink_port) { | |
1771 | err = -ENODEV; | |
1772 | goto out; | |
1773 | } | |
1774 | ||
7ca973dc LR |
1775 | err = devlink_nl_port_fill(msg, devlink_port, DEVLINK_CMD_NEW, |
1776 | info->snd_portid, info->snd_seq, 0, NULL); | |
cd76dcd6 PP |
1777 | if (err) |
1778 | goto out; | |
1779 | ||
a44c4511 | 1780 | return genlmsg_reply(msg, info); |
cd76dcd6 PP |
1781 | |
1782 | out: | |
cd76dcd6 PP |
1783 | nlmsg_free(msg); |
1784 | return err; | |
1785 | } | |
1786 | ||
1787 | static int devlink_nl_cmd_port_new_doit(struct sk_buff *skb, | |
1788 | struct genl_info *info) | |
1789 | { | |
1790 | struct netlink_ext_ack *extack = info->extack; | |
1791 | struct devlink_port_new_attrs new_attrs = {}; | |
1792 | struct devlink *devlink = info->user_ptr[0]; | |
1793 | unsigned int new_port_index; | |
1794 | int err; | |
1795 | ||
1796 | if (!devlink->ops->port_new || !devlink->ops->port_del) | |
1797 | return -EOPNOTSUPP; | |
1798 | ||
1799 | if (!info->attrs[DEVLINK_ATTR_PORT_FLAVOUR] || | |
1800 | !info->attrs[DEVLINK_ATTR_PORT_PCI_PF_NUMBER]) { | |
1801 | NL_SET_ERR_MSG_MOD(extack, "Port flavour or PCI PF are not specified"); | |
1802 | return -EINVAL; | |
1803 | } | |
1804 | new_attrs.flavour = nla_get_u16(info->attrs[DEVLINK_ATTR_PORT_FLAVOUR]); | |
1805 | new_attrs.pfnum = | |
1806 | nla_get_u16(info->attrs[DEVLINK_ATTR_PORT_PCI_PF_NUMBER]); | |
1807 | ||
1808 | if (info->attrs[DEVLINK_ATTR_PORT_INDEX]) { | |
1809 | /* Port index of the new port being created by driver. */ | |
1810 | new_attrs.port_index = | |
1811 | nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_INDEX]); | |
1812 | new_attrs.port_index_valid = true; | |
1813 | } | |
1814 | if (info->attrs[DEVLINK_ATTR_PORT_CONTROLLER_NUMBER]) { | |
1815 | new_attrs.controller = | |
1816 | nla_get_u16(info->attrs[DEVLINK_ATTR_PORT_CONTROLLER_NUMBER]); | |
1817 | new_attrs.controller_valid = true; | |
1818 | } | |
1819 | if (new_attrs.flavour == DEVLINK_PORT_FLAVOUR_PCI_SF && | |
1820 | info->attrs[DEVLINK_ATTR_PORT_PCI_SF_NUMBER]) { | |
1821 | new_attrs.sfnum = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_PCI_SF_NUMBER]); | |
1822 | new_attrs.sfnum_valid = true; | |
1823 | } | |
1824 | ||
1825 | err = devlink->ops->port_new(devlink, &new_attrs, extack, | |
1826 | &new_port_index); | |
1827 | if (err) | |
1828 | return err; | |
1829 | ||
ced92571 | 1830 | err = devlink_port_new_notify(devlink, new_port_index, info); |
cd76dcd6 PP |
1831 | if (err && err != -ENODEV) { |
1832 | /* Fail to send the response; destroy newly created port. */ | |
1833 | devlink->ops->port_del(devlink, new_port_index, extack); | |
1834 | } | |
1835 | return err; | |
1836 | } | |
1837 | ||
1838 | static int devlink_nl_cmd_port_del_doit(struct sk_buff *skb, | |
1839 | struct genl_info *info) | |
1840 | { | |
1841 | struct netlink_ext_ack *extack = info->extack; | |
1842 | struct devlink *devlink = info->user_ptr[0]; | |
1843 | unsigned int port_index; | |
1844 | ||
1845 | if (!devlink->ops->port_del) | |
1846 | return -EOPNOTSUPP; | |
1847 | ||
1f7633b5 | 1848 | if (GENL_REQ_ATTR_CHECK(info, DEVLINK_ATTR_PORT_INDEX)) { |
cd76dcd6 PP |
1849 | NL_SET_ERR_MSG_MOD(extack, "Port index is not specified"); |
1850 | return -EINVAL; | |
1851 | } | |
1852 | port_index = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_INDEX]); | |
1853 | ||
1854 | return devlink->ops->port_del(devlink, port_index, extack); | |
1855 | } | |
1856 | ||
d7555984 DL |
1857 | static int |
1858 | devlink_nl_rate_parent_node_set(struct devlink_rate *devlink_rate, | |
1859 | struct genl_info *info, | |
1860 | struct nlattr *nla_parent) | |
1861 | { | |
1862 | struct devlink *devlink = devlink_rate->devlink; | |
1863 | const char *parent_name = nla_data(nla_parent); | |
1864 | const struct devlink_ops *ops = devlink->ops; | |
1865 | size_t len = strlen(parent_name); | |
1866 | struct devlink_rate *parent; | |
1867 | int err = -EOPNOTSUPP; | |
1868 | ||
1869 | parent = devlink_rate->parent; | |
1870 | if (parent && len) { | |
1871 | NL_SET_ERR_MSG_MOD(info->extack, "Rate object already has parent."); | |
1872 | return -EBUSY; | |
1873 | } else if (parent && !len) { | |
1874 | if (devlink_rate_is_leaf(devlink_rate)) | |
1875 | err = ops->rate_leaf_parent_set(devlink_rate, NULL, | |
1876 | devlink_rate->priv, NULL, | |
1877 | info->extack); | |
1878 | else if (devlink_rate_is_node(devlink_rate)) | |
1879 | err = ops->rate_node_parent_set(devlink_rate, NULL, | |
1880 | devlink_rate->priv, NULL, | |
1881 | info->extack); | |
1882 | if (err) | |
1883 | return err; | |
1884 | ||
1885 | refcount_dec(&parent->refcnt); | |
1886 | devlink_rate->parent = NULL; | |
1887 | } else if (!parent && len) { | |
1888 | parent = devlink_rate_node_get_by_name(devlink, parent_name); | |
1889 | if (IS_ERR(parent)) | |
1890 | return -ENODEV; | |
1891 | ||
1892 | if (parent == devlink_rate) { | |
1893 | NL_SET_ERR_MSG_MOD(info->extack, "Parent to self is not allowed"); | |
1894 | return -EINVAL; | |
1895 | } | |
1896 | ||
1897 | if (devlink_rate_is_node(devlink_rate) && | |
1898 | devlink_rate_is_parent_node(devlink_rate, parent->parent)) { | |
1899 | NL_SET_ERR_MSG_MOD(info->extack, "Node is already a parent of parent node."); | |
1900 | return -EEXIST; | |
1901 | } | |
1902 | ||
1903 | if (devlink_rate_is_leaf(devlink_rate)) | |
1904 | err = ops->rate_leaf_parent_set(devlink_rate, parent, | |
1905 | devlink_rate->priv, parent->priv, | |
1906 | info->extack); | |
1907 | else if (devlink_rate_is_node(devlink_rate)) | |
1908 | err = ops->rate_node_parent_set(devlink_rate, parent, | |
1909 | devlink_rate->priv, parent->priv, | |
1910 | info->extack); | |
1911 | if (err) | |
1912 | return err; | |
1913 | ||
1914 | refcount_inc(&parent->refcnt); | |
1915 | devlink_rate->parent = parent; | |
1916 | } | |
1917 | ||
1918 | return 0; | |
1919 | } | |
1920 | ||
1897db2e DL |
1921 | static int devlink_nl_rate_set(struct devlink_rate *devlink_rate, |
1922 | const struct devlink_ops *ops, | |
1923 | struct genl_info *info) | |
1924 | { | |
d7555984 | 1925 | struct nlattr *nla_parent, **attrs = info->attrs; |
a8ecb93e | 1926 | int err = -EOPNOTSUPP; |
1897db2e | 1927 | u64 rate; |
1897db2e DL |
1928 | |
1929 | if (attrs[DEVLINK_ATTR_RATE_TX_SHARE]) { | |
1930 | rate = nla_get_u64(attrs[DEVLINK_ATTR_RATE_TX_SHARE]); | |
a8ecb93e DL |
1931 | if (devlink_rate_is_leaf(devlink_rate)) |
1932 | err = ops->rate_leaf_tx_share_set(devlink_rate, devlink_rate->priv, | |
1933 | rate, info->extack); | |
1934 | else if (devlink_rate_is_node(devlink_rate)) | |
1935 | err = ops->rate_node_tx_share_set(devlink_rate, devlink_rate->priv, | |
1936 | rate, info->extack); | |
1897db2e DL |
1937 | if (err) |
1938 | return err; | |
1939 | devlink_rate->tx_share = rate; | |
1940 | } | |
1941 | ||
1942 | if (attrs[DEVLINK_ATTR_RATE_TX_MAX]) { | |
1943 | rate = nla_get_u64(attrs[DEVLINK_ATTR_RATE_TX_MAX]); | |
a8ecb93e DL |
1944 | if (devlink_rate_is_leaf(devlink_rate)) |
1945 | err = ops->rate_leaf_tx_max_set(devlink_rate, devlink_rate->priv, | |
1946 | rate, info->extack); | |
1947 | else if (devlink_rate_is_node(devlink_rate)) | |
1948 | err = ops->rate_node_tx_max_set(devlink_rate, devlink_rate->priv, | |
1949 | rate, info->extack); | |
1897db2e DL |
1950 | if (err) |
1951 | return err; | |
1952 | devlink_rate->tx_max = rate; | |
1953 | } | |
1954 | ||
d7555984 DL |
1955 | nla_parent = attrs[DEVLINK_ATTR_RATE_PARENT_NODE_NAME]; |
1956 | if (nla_parent) { | |
1957 | err = devlink_nl_rate_parent_node_set(devlink_rate, info, | |
1958 | nla_parent); | |
1959 | if (err) | |
1960 | return err; | |
1961 | } | |
1962 | ||
1897db2e DL |
1963 | return 0; |
1964 | } | |
1965 | ||
1966 | static bool devlink_rate_set_ops_supported(const struct devlink_ops *ops, | |
1967 | struct genl_info *info, | |
1968 | enum devlink_rate_type type) | |
1969 | { | |
1970 | struct nlattr **attrs = info->attrs; | |
1971 | ||
1972 | if (type == DEVLINK_RATE_TYPE_LEAF) { | |
1973 | if (attrs[DEVLINK_ATTR_RATE_TX_SHARE] && !ops->rate_leaf_tx_share_set) { | |
1974 | NL_SET_ERR_MSG_MOD(info->extack, "TX share set isn't supported for the leafs"); | |
1975 | return false; | |
1976 | } | |
1977 | if (attrs[DEVLINK_ATTR_RATE_TX_MAX] && !ops->rate_leaf_tx_max_set) { | |
1978 | NL_SET_ERR_MSG_MOD(info->extack, "TX max set isn't supported for the leafs"); | |
1979 | return false; | |
1980 | } | |
d7555984 DL |
1981 | if (attrs[DEVLINK_ATTR_RATE_PARENT_NODE_NAME] && |
1982 | !ops->rate_leaf_parent_set) { | |
1983 | NL_SET_ERR_MSG_MOD(info->extack, "Parent set isn't supported for the leafs"); | |
1984 | return false; | |
1985 | } | |
a8ecb93e DL |
1986 | } else if (type == DEVLINK_RATE_TYPE_NODE) { |
1987 | if (attrs[DEVLINK_ATTR_RATE_TX_SHARE] && !ops->rate_node_tx_share_set) { | |
1988 | NL_SET_ERR_MSG_MOD(info->extack, "TX share set isn't supported for the nodes"); | |
1989 | return false; | |
1990 | } | |
1991 | if (attrs[DEVLINK_ATTR_RATE_TX_MAX] && !ops->rate_node_tx_max_set) { | |
1992 | NL_SET_ERR_MSG_MOD(info->extack, "TX max set isn't supported for the nodes"); | |
1993 | return false; | |
1994 | } | |
d7555984 DL |
1995 | if (attrs[DEVLINK_ATTR_RATE_PARENT_NODE_NAME] && |
1996 | !ops->rate_node_parent_set) { | |
1997 | NL_SET_ERR_MSG_MOD(info->extack, "Parent set isn't supported for the nodes"); | |
1998 | return false; | |
1999 | } | |
1897db2e | 2000 | } else { |
711d1dee | 2001 | WARN(1, "Unknown type of rate object"); |
1897db2e DL |
2002 | return false; |
2003 | } | |
2004 | ||
2005 | return true; | |
2006 | } | |
2007 | ||
2008 | static int devlink_nl_cmd_rate_set_doit(struct sk_buff *skb, | |
2009 | struct genl_info *info) | |
2010 | { | |
2011 | struct devlink_rate *devlink_rate = info->user_ptr[1]; | |
2012 | struct devlink *devlink = devlink_rate->devlink; | |
2013 | const struct devlink_ops *ops = devlink->ops; | |
2014 | int err; | |
2015 | ||
2016 | if (!ops || !devlink_rate_set_ops_supported(ops, info, devlink_rate->type)) | |
2017 | return -EOPNOTSUPP; | |
2018 | ||
2019 | err = devlink_nl_rate_set(devlink_rate, ops, info); | |
2020 | ||
2021 | if (!err) | |
2022 | devlink_rate_notify(devlink_rate, DEVLINK_CMD_RATE_NEW); | |
2023 | return err; | |
2024 | } | |
2025 | ||
a8ecb93e DL |
2026 | static int devlink_nl_cmd_rate_new_doit(struct sk_buff *skb, |
2027 | struct genl_info *info) | |
2028 | { | |
2029 | struct devlink *devlink = info->user_ptr[0]; | |
2030 | struct devlink_rate *rate_node; | |
2031 | const struct devlink_ops *ops; | |
2032 | int err; | |
2033 | ||
2034 | ops = devlink->ops; | |
2035 | if (!ops || !ops->rate_node_new || !ops->rate_node_del) { | |
2036 | NL_SET_ERR_MSG_MOD(info->extack, "Rate nodes aren't supported"); | |
2037 | return -EOPNOTSUPP; | |
2038 | } | |
2039 | ||
2040 | if (!devlink_rate_set_ops_supported(ops, info, DEVLINK_RATE_TYPE_NODE)) | |
2041 | return -EOPNOTSUPP; | |
2042 | ||
2043 | rate_node = devlink_rate_node_get_from_attrs(devlink, info->attrs); | |
2044 | if (!IS_ERR(rate_node)) | |
2045 | return -EEXIST; | |
2046 | else if (rate_node == ERR_PTR(-EINVAL)) | |
2047 | return -EINVAL; | |
2048 | ||
2049 | rate_node = kzalloc(sizeof(*rate_node), GFP_KERNEL); | |
2050 | if (!rate_node) | |
2051 | return -ENOMEM; | |
2052 | ||
2053 | rate_node->devlink = devlink; | |
2054 | rate_node->type = DEVLINK_RATE_TYPE_NODE; | |
2055 | rate_node->name = nla_strdup(info->attrs[DEVLINK_ATTR_RATE_NODE_NAME], GFP_KERNEL); | |
2056 | if (!rate_node->name) { | |
2057 | err = -ENOMEM; | |
2058 | goto err_strdup; | |
2059 | } | |
2060 | ||
2061 | err = ops->rate_node_new(rate_node, &rate_node->priv, info->extack); | |
2062 | if (err) | |
2063 | goto err_node_new; | |
2064 | ||
2065 | err = devlink_nl_rate_set(rate_node, ops, info); | |
2066 | if (err) | |
2067 | goto err_rate_set; | |
2068 | ||
d7555984 | 2069 | refcount_set(&rate_node->refcnt, 1); |
a8ecb93e DL |
2070 | list_add(&rate_node->list, &devlink->rate_list); |
2071 | devlink_rate_notify(rate_node, DEVLINK_CMD_RATE_NEW); | |
2072 | return 0; | |
2073 | ||
2074 | err_rate_set: | |
2075 | ops->rate_node_del(rate_node, rate_node->priv, info->extack); | |
2076 | err_node_new: | |
2077 | kfree(rate_node->name); | |
2078 | err_strdup: | |
2079 | kfree(rate_node); | |
2080 | return err; | |
2081 | } | |
2082 | ||
2083 | static int devlink_nl_cmd_rate_del_doit(struct sk_buff *skb, | |
2084 | struct genl_info *info) | |
2085 | { | |
2086 | struct devlink_rate *rate_node = info->user_ptr[1]; | |
2087 | struct devlink *devlink = rate_node->devlink; | |
2088 | const struct devlink_ops *ops = devlink->ops; | |
2089 | int err; | |
2090 | ||
d7555984 DL |
2091 | if (refcount_read(&rate_node->refcnt) > 1) { |
2092 | NL_SET_ERR_MSG_MOD(info->extack, "Node has children. Cannot delete node."); | |
2093 | return -EBUSY; | |
2094 | } | |
2095 | ||
a8ecb93e DL |
2096 | devlink_rate_notify(rate_node, DEVLINK_CMD_RATE_DEL); |
2097 | err = ops->rate_node_del(rate_node, rate_node->priv, info->extack); | |
d7555984 DL |
2098 | if (rate_node->parent) |
2099 | refcount_dec(&rate_node->parent->refcnt); | |
a8ecb93e DL |
2100 | list_del(&rate_node->list); |
2101 | kfree(rate_node->name); | |
2102 | kfree(rate_node); | |
2103 | return err; | |
2104 | } | |
2105 | ||
fcdc8ce2 JP |
2106 | struct devlink_linecard_type { |
2107 | const char *type; | |
2108 | const void *priv; | |
2109 | }; | |
2110 | ||
c246f9b5 JP |
2111 | static int devlink_nl_linecard_fill(struct sk_buff *msg, |
2112 | struct devlink *devlink, | |
2113 | struct devlink_linecard *linecard, | |
2114 | enum devlink_command cmd, u32 portid, | |
2115 | u32 seq, int flags, | |
2116 | struct netlink_ext_ack *extack) | |
2117 | { | |
fcdc8ce2 JP |
2118 | struct devlink_linecard_type *linecard_type; |
2119 | struct nlattr *attr; | |
c246f9b5 | 2120 | void *hdr; |
fcdc8ce2 | 2121 | int i; |
c246f9b5 JP |
2122 | |
2123 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
2124 | if (!hdr) | |
2125 | return -EMSGSIZE; | |
2126 | ||
2127 | if (devlink_nl_put_handle(msg, devlink)) | |
2128 | goto nla_put_failure; | |
2129 | if (nla_put_u32(msg, DEVLINK_ATTR_LINECARD_INDEX, linecard->index)) | |
2130 | goto nla_put_failure; | |
fcdc8ce2 JP |
2131 | if (nla_put_u8(msg, DEVLINK_ATTR_LINECARD_STATE, linecard->state)) |
2132 | goto nla_put_failure; | |
2133 | if (linecard->type && | |
2134 | nla_put_string(msg, DEVLINK_ATTR_LINECARD_TYPE, linecard->type)) | |
2135 | goto nla_put_failure; | |
2136 | ||
2137 | if (linecard->types_count) { | |
2138 | attr = nla_nest_start(msg, | |
2139 | DEVLINK_ATTR_LINECARD_SUPPORTED_TYPES); | |
2140 | if (!attr) | |
2141 | goto nla_put_failure; | |
2142 | for (i = 0; i < linecard->types_count; i++) { | |
2143 | linecard_type = &linecard->types[i]; | |
2144 | if (nla_put_string(msg, DEVLINK_ATTR_LINECARD_TYPE, | |
2145 | linecard_type->type)) { | |
2146 | nla_nest_cancel(msg, attr); | |
2147 | goto nla_put_failure; | |
2148 | } | |
2149 | } | |
2150 | nla_nest_end(msg, attr); | |
2151 | } | |
c246f9b5 | 2152 | |
7b2d9a1a JP |
2153 | if (linecard->nested_devlink && |
2154 | devlink_nl_put_nested_handle(msg, linecard->nested_devlink)) | |
2155 | goto nla_put_failure; | |
2156 | ||
c246f9b5 JP |
2157 | genlmsg_end(msg, hdr); |
2158 | return 0; | |
2159 | ||
2160 | nla_put_failure: | |
2161 | genlmsg_cancel(msg, hdr); | |
2162 | return -EMSGSIZE; | |
2163 | } | |
2164 | ||
2165 | static void devlink_linecard_notify(struct devlink_linecard *linecard, | |
2166 | enum devlink_command cmd) | |
2167 | { | |
2168 | struct devlink *devlink = linecard->devlink; | |
2169 | struct sk_buff *msg; | |
2170 | int err; | |
2171 | ||
2172 | WARN_ON(cmd != DEVLINK_CMD_LINECARD_NEW && | |
2173 | cmd != DEVLINK_CMD_LINECARD_DEL); | |
2174 | ||
2175 | if (!xa_get_mark(&devlinks, devlink->index, DEVLINK_REGISTERED)) | |
2176 | return; | |
2177 | ||
2178 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
2179 | if (!msg) | |
2180 | return; | |
2181 | ||
2182 | err = devlink_nl_linecard_fill(msg, devlink, linecard, cmd, 0, 0, 0, | |
2183 | NULL); | |
2184 | if (err) { | |
2185 | nlmsg_free(msg); | |
2186 | return; | |
2187 | } | |
2188 | ||
2189 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), | |
2190 | msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
2191 | } | |
2192 | ||
2193 | static int devlink_nl_cmd_linecard_get_doit(struct sk_buff *skb, | |
2194 | struct genl_info *info) | |
2195 | { | |
2196 | struct devlink_linecard *linecard = info->user_ptr[1]; | |
2197 | struct devlink *devlink = linecard->devlink; | |
2198 | struct sk_buff *msg; | |
2199 | int err; | |
2200 | ||
2201 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
2202 | if (!msg) | |
2203 | return -ENOMEM; | |
2204 | ||
fcdc8ce2 | 2205 | mutex_lock(&linecard->state_lock); |
c246f9b5 JP |
2206 | err = devlink_nl_linecard_fill(msg, devlink, linecard, |
2207 | DEVLINK_CMD_LINECARD_NEW, | |
2208 | info->snd_portid, info->snd_seq, 0, | |
2209 | info->extack); | |
fcdc8ce2 | 2210 | mutex_unlock(&linecard->state_lock); |
c246f9b5 JP |
2211 | if (err) { |
2212 | nlmsg_free(msg); | |
2213 | return err; | |
2214 | } | |
2215 | ||
2216 | return genlmsg_reply(msg, info); | |
2217 | } | |
2218 | ||
2219 | static int devlink_nl_cmd_linecard_get_dumpit(struct sk_buff *msg, | |
2220 | struct netlink_callback *cb) | |
2221 | { | |
2222 | struct devlink_linecard *linecard; | |
2223 | struct devlink *devlink; | |
2224 | int start = cb->args[0]; | |
2225 | unsigned long index; | |
2226 | int idx = 0; | |
2227 | int err; | |
2228 | ||
294c4f57 | 2229 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
c246f9b5 JP |
2230 | mutex_lock(&devlink->linecards_lock); |
2231 | list_for_each_entry(linecard, &devlink->linecard_list, list) { | |
2232 | if (idx < start) { | |
2233 | idx++; | |
2234 | continue; | |
2235 | } | |
fcdc8ce2 | 2236 | mutex_lock(&linecard->state_lock); |
c246f9b5 JP |
2237 | err = devlink_nl_linecard_fill(msg, devlink, linecard, |
2238 | DEVLINK_CMD_LINECARD_NEW, | |
2239 | NETLINK_CB(cb->skb).portid, | |
2240 | cb->nlh->nlmsg_seq, | |
2241 | NLM_F_MULTI, | |
2242 | cb->extack); | |
fcdc8ce2 | 2243 | mutex_unlock(&linecard->state_lock); |
c246f9b5 JP |
2244 | if (err) { |
2245 | mutex_unlock(&devlink->linecards_lock); | |
2246 | devlink_put(devlink); | |
2247 | goto out; | |
2248 | } | |
2249 | idx++; | |
2250 | } | |
2251 | mutex_unlock(&devlink->linecards_lock); | |
c246f9b5 JP |
2252 | devlink_put(devlink); |
2253 | } | |
2254 | out: | |
c246f9b5 JP |
2255 | cb->args[0] = idx; |
2256 | return msg->len; | |
2257 | } | |
2258 | ||
fcdc8ce2 JP |
2259 | static struct devlink_linecard_type * |
2260 | devlink_linecard_type_lookup(struct devlink_linecard *linecard, | |
2261 | const char *type) | |
2262 | { | |
2263 | struct devlink_linecard_type *linecard_type; | |
2264 | int i; | |
2265 | ||
2266 | for (i = 0; i < linecard->types_count; i++) { | |
2267 | linecard_type = &linecard->types[i]; | |
2268 | if (!strcmp(type, linecard_type->type)) | |
2269 | return linecard_type; | |
2270 | } | |
2271 | return NULL; | |
2272 | } | |
2273 | ||
2274 | static int devlink_linecard_type_set(struct devlink_linecard *linecard, | |
2275 | const char *type, | |
2276 | struct netlink_ext_ack *extack) | |
2277 | { | |
2278 | const struct devlink_linecard_ops *ops = linecard->ops; | |
2279 | struct devlink_linecard_type *linecard_type; | |
2280 | int err; | |
2281 | ||
2282 | mutex_lock(&linecard->state_lock); | |
2283 | if (linecard->state == DEVLINK_LINECARD_STATE_PROVISIONING) { | |
2284 | NL_SET_ERR_MSG_MOD(extack, "Line card is currently being provisioned"); | |
2285 | err = -EBUSY; | |
2286 | goto out; | |
2287 | } | |
2288 | if (linecard->state == DEVLINK_LINECARD_STATE_UNPROVISIONING) { | |
2289 | NL_SET_ERR_MSG_MOD(extack, "Line card is currently being unprovisioned"); | |
2290 | err = -EBUSY; | |
2291 | goto out; | |
2292 | } | |
2293 | ||
2294 | linecard_type = devlink_linecard_type_lookup(linecard, type); | |
2295 | if (!linecard_type) { | |
2296 | NL_SET_ERR_MSG_MOD(extack, "Unsupported line card type provided"); | |
2297 | err = -EINVAL; | |
2298 | goto out; | |
2299 | } | |
2300 | ||
2301 | if (linecard->state != DEVLINK_LINECARD_STATE_UNPROVISIONED && | |
2302 | linecard->state != DEVLINK_LINECARD_STATE_PROVISIONING_FAILED) { | |
2303 | NL_SET_ERR_MSG_MOD(extack, "Line card already provisioned"); | |
2304 | err = -EBUSY; | |
2305 | /* Check if the line card is provisioned in the same | |
2306 | * way the user asks. In case it is, make the operation | |
2307 | * to return success. | |
2308 | */ | |
2309 | if (ops->same_provision && | |
2310 | ops->same_provision(linecard, linecard->priv, | |
2311 | linecard_type->type, | |
2312 | linecard_type->priv)) | |
2313 | err = 0; | |
2314 | goto out; | |
2315 | } | |
2316 | ||
2317 | linecard->state = DEVLINK_LINECARD_STATE_PROVISIONING; | |
2318 | linecard->type = linecard_type->type; | |
2319 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
2320 | mutex_unlock(&linecard->state_lock); | |
2321 | err = ops->provision(linecard, linecard->priv, linecard_type->type, | |
2322 | linecard_type->priv, extack); | |
2323 | if (err) { | |
2324 | /* Provisioning failed. Assume the linecard is unprovisioned | |
2325 | * for future operations. | |
2326 | */ | |
2327 | mutex_lock(&linecard->state_lock); | |
2328 | linecard->state = DEVLINK_LINECARD_STATE_UNPROVISIONED; | |
2329 | linecard->type = NULL; | |
2330 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
2331 | mutex_unlock(&linecard->state_lock); | |
2332 | } | |
2333 | return err; | |
2334 | ||
2335 | out: | |
2336 | mutex_unlock(&linecard->state_lock); | |
2337 | return err; | |
2338 | } | |
2339 | ||
2340 | static int devlink_linecard_type_unset(struct devlink_linecard *linecard, | |
2341 | struct netlink_ext_ack *extack) | |
2342 | { | |
2343 | int err; | |
2344 | ||
2345 | mutex_lock(&linecard->state_lock); | |
2346 | if (linecard->state == DEVLINK_LINECARD_STATE_PROVISIONING) { | |
2347 | NL_SET_ERR_MSG_MOD(extack, "Line card is currently being provisioned"); | |
2348 | err = -EBUSY; | |
2349 | goto out; | |
2350 | } | |
2351 | if (linecard->state == DEVLINK_LINECARD_STATE_UNPROVISIONING) { | |
2352 | NL_SET_ERR_MSG_MOD(extack, "Line card is currently being unprovisioned"); | |
2353 | err = -EBUSY; | |
2354 | goto out; | |
2355 | } | |
2356 | if (linecard->state == DEVLINK_LINECARD_STATE_PROVISIONING_FAILED) { | |
2357 | linecard->state = DEVLINK_LINECARD_STATE_UNPROVISIONED; | |
2358 | linecard->type = NULL; | |
2359 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
2360 | err = 0; | |
2361 | goto out; | |
2362 | } | |
2363 | ||
2364 | if (linecard->state == DEVLINK_LINECARD_STATE_UNPROVISIONED) { | |
2365 | NL_SET_ERR_MSG_MOD(extack, "Line card is not provisioned"); | |
2366 | err = 0; | |
2367 | goto out; | |
2368 | } | |
2369 | linecard->state = DEVLINK_LINECARD_STATE_UNPROVISIONING; | |
2370 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
2371 | mutex_unlock(&linecard->state_lock); | |
2372 | err = linecard->ops->unprovision(linecard, linecard->priv, | |
2373 | extack); | |
2374 | if (err) { | |
2375 | /* Unprovisioning failed. Assume the linecard is unprovisioned | |
2376 | * for future operations. | |
2377 | */ | |
2378 | mutex_lock(&linecard->state_lock); | |
2379 | linecard->state = DEVLINK_LINECARD_STATE_UNPROVISIONED; | |
2380 | linecard->type = NULL; | |
2381 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
2382 | mutex_unlock(&linecard->state_lock); | |
2383 | } | |
2384 | return err; | |
2385 | ||
2386 | out: | |
2387 | mutex_unlock(&linecard->state_lock); | |
2388 | return err; | |
2389 | } | |
2390 | ||
2391 | static int devlink_nl_cmd_linecard_set_doit(struct sk_buff *skb, | |
2392 | struct genl_info *info) | |
2393 | { | |
2394 | struct devlink_linecard *linecard = info->user_ptr[1]; | |
2395 | struct netlink_ext_ack *extack = info->extack; | |
2396 | int err; | |
2397 | ||
2398 | if (info->attrs[DEVLINK_ATTR_LINECARD_TYPE]) { | |
2399 | const char *type; | |
2400 | ||
2401 | type = nla_data(info->attrs[DEVLINK_ATTR_LINECARD_TYPE]); | |
2402 | if (strcmp(type, "")) { | |
2403 | err = devlink_linecard_type_set(linecard, type, extack); | |
2404 | if (err) | |
2405 | return err; | |
2406 | } else { | |
2407 | err = devlink_linecard_type_unset(linecard, extack); | |
2408 | if (err) | |
2409 | return err; | |
2410 | } | |
2411 | } | |
2412 | ||
2413 | return 0; | |
2414 | } | |
2415 | ||
bf797471 JP |
2416 | static int devlink_nl_sb_fill(struct sk_buff *msg, struct devlink *devlink, |
2417 | struct devlink_sb *devlink_sb, | |
2418 | enum devlink_command cmd, u32 portid, | |
2419 | u32 seq, int flags) | |
2420 | { | |
2421 | void *hdr; | |
2422 | ||
2423 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
2424 | if (!hdr) | |
2425 | return -EMSGSIZE; | |
2426 | ||
2427 | if (devlink_nl_put_handle(msg, devlink)) | |
2428 | goto nla_put_failure; | |
2429 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_INDEX, devlink_sb->index)) | |
2430 | goto nla_put_failure; | |
2431 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_SIZE, devlink_sb->size)) | |
2432 | goto nla_put_failure; | |
2433 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_INGRESS_POOL_COUNT, | |
2434 | devlink_sb->ingress_pools_count)) | |
2435 | goto nla_put_failure; | |
2436 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_EGRESS_POOL_COUNT, | |
2437 | devlink_sb->egress_pools_count)) | |
2438 | goto nla_put_failure; | |
2439 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_INGRESS_TC_COUNT, | |
2440 | devlink_sb->ingress_tc_count)) | |
2441 | goto nla_put_failure; | |
2442 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_EGRESS_TC_COUNT, | |
2443 | devlink_sb->egress_tc_count)) | |
2444 | goto nla_put_failure; | |
2445 | ||
2446 | genlmsg_end(msg, hdr); | |
2447 | return 0; | |
2448 | ||
2449 | nla_put_failure: | |
2450 | genlmsg_cancel(msg, hdr); | |
2451 | return -EMSGSIZE; | |
2452 | } | |
2453 | ||
2454 | static int devlink_nl_cmd_sb_get_doit(struct sk_buff *skb, | |
2455 | struct genl_info *info) | |
2456 | { | |
2457 | struct devlink *devlink = info->user_ptr[0]; | |
637989b5 | 2458 | struct devlink_sb *devlink_sb; |
bf797471 JP |
2459 | struct sk_buff *msg; |
2460 | int err; | |
2461 | ||
637989b5 PP |
2462 | devlink_sb = devlink_sb_get_from_info(devlink, info); |
2463 | if (IS_ERR(devlink_sb)) | |
2464 | return PTR_ERR(devlink_sb); | |
2465 | ||
bf797471 JP |
2466 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
2467 | if (!msg) | |
2468 | return -ENOMEM; | |
2469 | ||
2470 | err = devlink_nl_sb_fill(msg, devlink, devlink_sb, | |
2471 | DEVLINK_CMD_SB_NEW, | |
2472 | info->snd_portid, info->snd_seq, 0); | |
2473 | if (err) { | |
2474 | nlmsg_free(msg); | |
2475 | return err; | |
2476 | } | |
2477 | ||
2478 | return genlmsg_reply(msg, info); | |
2479 | } | |
2480 | ||
2481 | static int devlink_nl_cmd_sb_get_dumpit(struct sk_buff *msg, | |
2482 | struct netlink_callback *cb) | |
2483 | { | |
2484 | struct devlink *devlink; | |
2485 | struct devlink_sb *devlink_sb; | |
2486 | int start = cb->args[0]; | |
11a861d7 | 2487 | unsigned long index; |
bf797471 JP |
2488 | int idx = 0; |
2489 | int err; | |
2490 | ||
294c4f57 | 2491 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
7715023a | 2492 | devl_lock(devlink); |
bf797471 JP |
2493 | list_for_each_entry(devlink_sb, &devlink->sb_list, list) { |
2494 | if (idx < start) { | |
2495 | idx++; | |
2496 | continue; | |
2497 | } | |
2498 | err = devlink_nl_sb_fill(msg, devlink, devlink_sb, | |
2499 | DEVLINK_CMD_SB_NEW, | |
2500 | NETLINK_CB(cb->skb).portid, | |
2501 | cb->nlh->nlmsg_seq, | |
2502 | NLM_F_MULTI); | |
2406e7e5 | 2503 | if (err) { |
7715023a | 2504 | devl_unlock(devlink); |
437ebfd9 | 2505 | devlink_put(devlink); |
bf797471 | 2506 | goto out; |
2406e7e5 | 2507 | } |
bf797471 JP |
2508 | idx++; |
2509 | } | |
7715023a | 2510 | devl_unlock(devlink); |
437ebfd9 | 2511 | devlink_put(devlink); |
bf797471 JP |
2512 | } |
2513 | out: | |
bf797471 JP |
2514 | cb->args[0] = idx; |
2515 | return msg->len; | |
2516 | } | |
2517 | ||
2518 | static int devlink_nl_sb_pool_fill(struct sk_buff *msg, struct devlink *devlink, | |
2519 | struct devlink_sb *devlink_sb, | |
2520 | u16 pool_index, enum devlink_command cmd, | |
2521 | u32 portid, u32 seq, int flags) | |
2522 | { | |
2523 | struct devlink_sb_pool_info pool_info; | |
2524 | void *hdr; | |
2525 | int err; | |
2526 | ||
2527 | err = devlink->ops->sb_pool_get(devlink, devlink_sb->index, | |
2528 | pool_index, &pool_info); | |
2529 | if (err) | |
2530 | return err; | |
2531 | ||
2532 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
2533 | if (!hdr) | |
2534 | return -EMSGSIZE; | |
2535 | ||
2536 | if (devlink_nl_put_handle(msg, devlink)) | |
2537 | goto nla_put_failure; | |
2538 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_INDEX, devlink_sb->index)) | |
2539 | goto nla_put_failure; | |
2540 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_POOL_INDEX, pool_index)) | |
2541 | goto nla_put_failure; | |
2542 | if (nla_put_u8(msg, DEVLINK_ATTR_SB_POOL_TYPE, pool_info.pool_type)) | |
2543 | goto nla_put_failure; | |
2544 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_POOL_SIZE, pool_info.size)) | |
2545 | goto nla_put_failure; | |
2546 | if (nla_put_u8(msg, DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE, | |
2547 | pool_info.threshold_type)) | |
2548 | goto nla_put_failure; | |
bff5731d JK |
2549 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_POOL_CELL_SIZE, |
2550 | pool_info.cell_size)) | |
2551 | goto nla_put_failure; | |
bf797471 JP |
2552 | |
2553 | genlmsg_end(msg, hdr); | |
2554 | return 0; | |
2555 | ||
2556 | nla_put_failure: | |
2557 | genlmsg_cancel(msg, hdr); | |
2558 | return -EMSGSIZE; | |
2559 | } | |
2560 | ||
2561 | static int devlink_nl_cmd_sb_pool_get_doit(struct sk_buff *skb, | |
2562 | struct genl_info *info) | |
2563 | { | |
2564 | struct devlink *devlink = info->user_ptr[0]; | |
637989b5 | 2565 | struct devlink_sb *devlink_sb; |
bf797471 JP |
2566 | struct sk_buff *msg; |
2567 | u16 pool_index; | |
2568 | int err; | |
2569 | ||
637989b5 PP |
2570 | devlink_sb = devlink_sb_get_from_info(devlink, info); |
2571 | if (IS_ERR(devlink_sb)) | |
2572 | return PTR_ERR(devlink_sb); | |
2573 | ||
bf797471 JP |
2574 | err = devlink_sb_pool_index_get_from_info(devlink_sb, info, |
2575 | &pool_index); | |
2576 | if (err) | |
2577 | return err; | |
2578 | ||
be6fe1d8 | 2579 | if (!devlink->ops->sb_pool_get) |
bf797471 JP |
2580 | return -EOPNOTSUPP; |
2581 | ||
2582 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
2583 | if (!msg) | |
2584 | return -ENOMEM; | |
2585 | ||
2586 | err = devlink_nl_sb_pool_fill(msg, devlink, devlink_sb, pool_index, | |
2587 | DEVLINK_CMD_SB_POOL_NEW, | |
2588 | info->snd_portid, info->snd_seq, 0); | |
2589 | if (err) { | |
2590 | nlmsg_free(msg); | |
2591 | return err; | |
2592 | } | |
2593 | ||
2594 | return genlmsg_reply(msg, info); | |
2595 | } | |
2596 | ||
2597 | static int __sb_pool_get_dumpit(struct sk_buff *msg, int start, int *p_idx, | |
2598 | struct devlink *devlink, | |
2599 | struct devlink_sb *devlink_sb, | |
2600 | u32 portid, u32 seq) | |
2601 | { | |
2602 | u16 pool_count = devlink_sb_pool_count(devlink_sb); | |
2603 | u16 pool_index; | |
2604 | int err; | |
2605 | ||
2606 | for (pool_index = 0; pool_index < pool_count; pool_index++) { | |
2607 | if (*p_idx < start) { | |
2608 | (*p_idx)++; | |
2609 | continue; | |
2610 | } | |
2611 | err = devlink_nl_sb_pool_fill(msg, devlink, | |
2612 | devlink_sb, | |
2613 | pool_index, | |
2614 | DEVLINK_CMD_SB_POOL_NEW, | |
2615 | portid, seq, NLM_F_MULTI); | |
2616 | if (err) | |
2617 | return err; | |
2618 | (*p_idx)++; | |
2619 | } | |
2620 | return 0; | |
2621 | } | |
2622 | ||
2623 | static int devlink_nl_cmd_sb_pool_get_dumpit(struct sk_buff *msg, | |
2624 | struct netlink_callback *cb) | |
2625 | { | |
2626 | struct devlink *devlink; | |
2627 | struct devlink_sb *devlink_sb; | |
2628 | int start = cb->args[0]; | |
11a861d7 | 2629 | unsigned long index; |
bf797471 | 2630 | int idx = 0; |
c62c2cfb | 2631 | int err = 0; |
bf797471 | 2632 | |
294c4f57 | 2633 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
2bb88b2c | 2634 | if (!devlink->ops->sb_pool_get) |
437ebfd9 LR |
2635 | goto retry; |
2636 | ||
7715023a | 2637 | devl_lock(devlink); |
bf797471 JP |
2638 | list_for_each_entry(devlink_sb, &devlink->sb_list, list) { |
2639 | err = __sb_pool_get_dumpit(msg, start, &idx, devlink, | |
2640 | devlink_sb, | |
2641 | NETLINK_CB(cb->skb).portid, | |
2642 | cb->nlh->nlmsg_seq); | |
82274d07 JK |
2643 | if (err == -EOPNOTSUPP) { |
2644 | err = 0; | |
2645 | } else if (err) { | |
7715023a | 2646 | devl_unlock(devlink); |
437ebfd9 | 2647 | devlink_put(devlink); |
bf797471 | 2648 | goto out; |
2406e7e5 | 2649 | } |
bf797471 | 2650 | } |
7715023a | 2651 | devl_unlock(devlink); |
437ebfd9 LR |
2652 | retry: |
2653 | devlink_put(devlink); | |
bf797471 JP |
2654 | } |
2655 | out: | |
c62c2cfb JP |
2656 | if (err != -EMSGSIZE) |
2657 | return err; | |
2658 | ||
bf797471 JP |
2659 | cb->args[0] = idx; |
2660 | return msg->len; | |
2661 | } | |
2662 | ||
2663 | static int devlink_sb_pool_set(struct devlink *devlink, unsigned int sb_index, | |
2664 | u16 pool_index, u32 size, | |
f2ad1a52 IS |
2665 | enum devlink_sb_threshold_type threshold_type, |
2666 | struct netlink_ext_ack *extack) | |
bf797471 JP |
2667 | |
2668 | { | |
2669 | const struct devlink_ops *ops = devlink->ops; | |
2670 | ||
be6fe1d8 | 2671 | if (ops->sb_pool_set) |
bf797471 | 2672 | return ops->sb_pool_set(devlink, sb_index, pool_index, |
f2ad1a52 | 2673 | size, threshold_type, extack); |
bf797471 JP |
2674 | return -EOPNOTSUPP; |
2675 | } | |
2676 | ||
2677 | static int devlink_nl_cmd_sb_pool_set_doit(struct sk_buff *skb, | |
2678 | struct genl_info *info) | |
2679 | { | |
2680 | struct devlink *devlink = info->user_ptr[0]; | |
bf797471 | 2681 | enum devlink_sb_threshold_type threshold_type; |
637989b5 | 2682 | struct devlink_sb *devlink_sb; |
bf797471 JP |
2683 | u16 pool_index; |
2684 | u32 size; | |
2685 | int err; | |
2686 | ||
637989b5 PP |
2687 | devlink_sb = devlink_sb_get_from_info(devlink, info); |
2688 | if (IS_ERR(devlink_sb)) | |
2689 | return PTR_ERR(devlink_sb); | |
2690 | ||
bf797471 JP |
2691 | err = devlink_sb_pool_index_get_from_info(devlink_sb, info, |
2692 | &pool_index); | |
2693 | if (err) | |
2694 | return err; | |
2695 | ||
2696 | err = devlink_sb_th_type_get_from_info(info, &threshold_type); | |
2697 | if (err) | |
2698 | return err; | |
2699 | ||
1f7633b5 | 2700 | if (GENL_REQ_ATTR_CHECK(info, DEVLINK_ATTR_SB_POOL_SIZE)) |
bf797471 JP |
2701 | return -EINVAL; |
2702 | ||
2703 | size = nla_get_u32(info->attrs[DEVLINK_ATTR_SB_POOL_SIZE]); | |
2704 | return devlink_sb_pool_set(devlink, devlink_sb->index, | |
f2ad1a52 IS |
2705 | pool_index, size, threshold_type, |
2706 | info->extack); | |
bf797471 JP |
2707 | } |
2708 | ||
2709 | static int devlink_nl_sb_port_pool_fill(struct sk_buff *msg, | |
2710 | struct devlink *devlink, | |
2711 | struct devlink_port *devlink_port, | |
2712 | struct devlink_sb *devlink_sb, | |
2713 | u16 pool_index, | |
2714 | enum devlink_command cmd, | |
2715 | u32 portid, u32 seq, int flags) | |
2716 | { | |
df38dafd | 2717 | const struct devlink_ops *ops = devlink->ops; |
bf797471 JP |
2718 | u32 threshold; |
2719 | void *hdr; | |
2720 | int err; | |
2721 | ||
df38dafd JP |
2722 | err = ops->sb_port_pool_get(devlink_port, devlink_sb->index, |
2723 | pool_index, &threshold); | |
bf797471 JP |
2724 | if (err) |
2725 | return err; | |
2726 | ||
2727 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
2728 | if (!hdr) | |
2729 | return -EMSGSIZE; | |
2730 | ||
2731 | if (devlink_nl_put_handle(msg, devlink)) | |
2732 | goto nla_put_failure; | |
2733 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, devlink_port->index)) | |
2734 | goto nla_put_failure; | |
2735 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_INDEX, devlink_sb->index)) | |
2736 | goto nla_put_failure; | |
2737 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_POOL_INDEX, pool_index)) | |
2738 | goto nla_put_failure; | |
2739 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_THRESHOLD, threshold)) | |
2740 | goto nla_put_failure; | |
2741 | ||
df38dafd JP |
2742 | if (ops->sb_occ_port_pool_get) { |
2743 | u32 cur; | |
2744 | u32 max; | |
2745 | ||
2746 | err = ops->sb_occ_port_pool_get(devlink_port, devlink_sb->index, | |
2747 | pool_index, &cur, &max); | |
2748 | if (err && err != -EOPNOTSUPP) | |
849920c7 | 2749 | goto sb_occ_get_failure; |
df38dafd JP |
2750 | if (!err) { |
2751 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_OCC_CUR, cur)) | |
2752 | goto nla_put_failure; | |
2753 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_OCC_MAX, max)) | |
2754 | goto nla_put_failure; | |
2755 | } | |
2756 | } | |
2757 | ||
bf797471 JP |
2758 | genlmsg_end(msg, hdr); |
2759 | return 0; | |
2760 | ||
2761 | nla_put_failure: | |
849920c7 WH |
2762 | err = -EMSGSIZE; |
2763 | sb_occ_get_failure: | |
bf797471 | 2764 | genlmsg_cancel(msg, hdr); |
849920c7 | 2765 | return err; |
bf797471 JP |
2766 | } |
2767 | ||
2768 | static int devlink_nl_cmd_sb_port_pool_get_doit(struct sk_buff *skb, | |
2769 | struct genl_info *info) | |
2770 | { | |
637989b5 | 2771 | struct devlink_port *devlink_port = info->user_ptr[1]; |
bf797471 | 2772 | struct devlink *devlink = devlink_port->devlink; |
637989b5 | 2773 | struct devlink_sb *devlink_sb; |
bf797471 JP |
2774 | struct sk_buff *msg; |
2775 | u16 pool_index; | |
2776 | int err; | |
2777 | ||
637989b5 PP |
2778 | devlink_sb = devlink_sb_get_from_info(devlink, info); |
2779 | if (IS_ERR(devlink_sb)) | |
2780 | return PTR_ERR(devlink_sb); | |
2781 | ||
bf797471 JP |
2782 | err = devlink_sb_pool_index_get_from_info(devlink_sb, info, |
2783 | &pool_index); | |
2784 | if (err) | |
2785 | return err; | |
2786 | ||
be6fe1d8 | 2787 | if (!devlink->ops->sb_port_pool_get) |
bf797471 JP |
2788 | return -EOPNOTSUPP; |
2789 | ||
2790 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
2791 | if (!msg) | |
2792 | return -ENOMEM; | |
2793 | ||
2794 | err = devlink_nl_sb_port_pool_fill(msg, devlink, devlink_port, | |
2795 | devlink_sb, pool_index, | |
2796 | DEVLINK_CMD_SB_PORT_POOL_NEW, | |
2797 | info->snd_portid, info->snd_seq, 0); | |
2798 | if (err) { | |
2799 | nlmsg_free(msg); | |
2800 | return err; | |
2801 | } | |
2802 | ||
2803 | return genlmsg_reply(msg, info); | |
2804 | } | |
2805 | ||
2806 | static int __sb_port_pool_get_dumpit(struct sk_buff *msg, int start, int *p_idx, | |
2807 | struct devlink *devlink, | |
2808 | struct devlink_sb *devlink_sb, | |
2809 | u32 portid, u32 seq) | |
2810 | { | |
2811 | struct devlink_port *devlink_port; | |
2812 | u16 pool_count = devlink_sb_pool_count(devlink_sb); | |
2813 | u16 pool_index; | |
2814 | int err; | |
2815 | ||
2816 | list_for_each_entry(devlink_port, &devlink->port_list, list) { | |
2817 | for (pool_index = 0; pool_index < pool_count; pool_index++) { | |
2818 | if (*p_idx < start) { | |
2819 | (*p_idx)++; | |
2820 | continue; | |
2821 | } | |
2822 | err = devlink_nl_sb_port_pool_fill(msg, devlink, | |
2823 | devlink_port, | |
2824 | devlink_sb, | |
2825 | pool_index, | |
2826 | DEVLINK_CMD_SB_PORT_POOL_NEW, | |
2827 | portid, seq, | |
2828 | NLM_F_MULTI); | |
2829 | if (err) | |
2830 | return err; | |
2831 | (*p_idx)++; | |
2832 | } | |
2833 | } | |
2834 | return 0; | |
2835 | } | |
2836 | ||
2837 | static int devlink_nl_cmd_sb_port_pool_get_dumpit(struct sk_buff *msg, | |
2838 | struct netlink_callback *cb) | |
2839 | { | |
2840 | struct devlink *devlink; | |
2841 | struct devlink_sb *devlink_sb; | |
2842 | int start = cb->args[0]; | |
11a861d7 | 2843 | unsigned long index; |
bf797471 | 2844 | int idx = 0; |
c62c2cfb | 2845 | int err = 0; |
bf797471 | 2846 | |
294c4f57 JP |
2847 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
2848 | if (!devlink->ops->sb_port_pool_get) | |
437ebfd9 LR |
2849 | goto retry; |
2850 | ||
7715023a | 2851 | devl_lock(devlink); |
bf797471 JP |
2852 | list_for_each_entry(devlink_sb, &devlink->sb_list, list) { |
2853 | err = __sb_port_pool_get_dumpit(msg, start, &idx, | |
2854 | devlink, devlink_sb, | |
2855 | NETLINK_CB(cb->skb).portid, | |
2856 | cb->nlh->nlmsg_seq); | |
82274d07 JK |
2857 | if (err == -EOPNOTSUPP) { |
2858 | err = 0; | |
2859 | } else if (err) { | |
7715023a | 2860 | devl_unlock(devlink); |
437ebfd9 | 2861 | devlink_put(devlink); |
bf797471 | 2862 | goto out; |
2406e7e5 | 2863 | } |
bf797471 | 2864 | } |
7715023a | 2865 | devl_unlock(devlink); |
437ebfd9 LR |
2866 | retry: |
2867 | devlink_put(devlink); | |
bf797471 JP |
2868 | } |
2869 | out: | |
c62c2cfb JP |
2870 | if (err != -EMSGSIZE) |
2871 | return err; | |
2872 | ||
bf797471 JP |
2873 | cb->args[0] = idx; |
2874 | return msg->len; | |
2875 | } | |
2876 | ||
2877 | static int devlink_sb_port_pool_set(struct devlink_port *devlink_port, | |
2878 | unsigned int sb_index, u16 pool_index, | |
f2ad1a52 IS |
2879 | u32 threshold, |
2880 | struct netlink_ext_ack *extack) | |
bf797471 JP |
2881 | |
2882 | { | |
2883 | const struct devlink_ops *ops = devlink_port->devlink->ops; | |
2884 | ||
be6fe1d8 | 2885 | if (ops->sb_port_pool_set) |
bf797471 | 2886 | return ops->sb_port_pool_set(devlink_port, sb_index, |
f2ad1a52 | 2887 | pool_index, threshold, extack); |
bf797471 JP |
2888 | return -EOPNOTSUPP; |
2889 | } | |
2890 | ||
2891 | static int devlink_nl_cmd_sb_port_pool_set_doit(struct sk_buff *skb, | |
2892 | struct genl_info *info) | |
2893 | { | |
637989b5 PP |
2894 | struct devlink_port *devlink_port = info->user_ptr[1]; |
2895 | struct devlink *devlink = info->user_ptr[0]; | |
2896 | struct devlink_sb *devlink_sb; | |
bf797471 JP |
2897 | u16 pool_index; |
2898 | u32 threshold; | |
2899 | int err; | |
2900 | ||
637989b5 PP |
2901 | devlink_sb = devlink_sb_get_from_info(devlink, info); |
2902 | if (IS_ERR(devlink_sb)) | |
2903 | return PTR_ERR(devlink_sb); | |
2904 | ||
bf797471 JP |
2905 | err = devlink_sb_pool_index_get_from_info(devlink_sb, info, |
2906 | &pool_index); | |
2907 | if (err) | |
2908 | return err; | |
2909 | ||
1f7633b5 | 2910 | if (GENL_REQ_ATTR_CHECK(info, DEVLINK_ATTR_SB_THRESHOLD)) |
bf797471 JP |
2911 | return -EINVAL; |
2912 | ||
2913 | threshold = nla_get_u32(info->attrs[DEVLINK_ATTR_SB_THRESHOLD]); | |
2914 | return devlink_sb_port_pool_set(devlink_port, devlink_sb->index, | |
f2ad1a52 | 2915 | pool_index, threshold, info->extack); |
bf797471 JP |
2916 | } |
2917 | ||
2918 | static int | |
2919 | devlink_nl_sb_tc_pool_bind_fill(struct sk_buff *msg, struct devlink *devlink, | |
2920 | struct devlink_port *devlink_port, | |
2921 | struct devlink_sb *devlink_sb, u16 tc_index, | |
2922 | enum devlink_sb_pool_type pool_type, | |
2923 | enum devlink_command cmd, | |
2924 | u32 portid, u32 seq, int flags) | |
2925 | { | |
df38dafd | 2926 | const struct devlink_ops *ops = devlink->ops; |
bf797471 JP |
2927 | u16 pool_index; |
2928 | u32 threshold; | |
2929 | void *hdr; | |
2930 | int err; | |
2931 | ||
df38dafd JP |
2932 | err = ops->sb_tc_pool_bind_get(devlink_port, devlink_sb->index, |
2933 | tc_index, pool_type, | |
2934 | &pool_index, &threshold); | |
bf797471 JP |
2935 | if (err) |
2936 | return err; | |
2937 | ||
2938 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
2939 | if (!hdr) | |
2940 | return -EMSGSIZE; | |
2941 | ||
2942 | if (devlink_nl_put_handle(msg, devlink)) | |
2943 | goto nla_put_failure; | |
2944 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, devlink_port->index)) | |
2945 | goto nla_put_failure; | |
2946 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_INDEX, devlink_sb->index)) | |
2947 | goto nla_put_failure; | |
2948 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_TC_INDEX, tc_index)) | |
2949 | goto nla_put_failure; | |
2950 | if (nla_put_u8(msg, DEVLINK_ATTR_SB_POOL_TYPE, pool_type)) | |
2951 | goto nla_put_failure; | |
2952 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_POOL_INDEX, pool_index)) | |
2953 | goto nla_put_failure; | |
2954 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_THRESHOLD, threshold)) | |
2955 | goto nla_put_failure; | |
2956 | ||
df38dafd JP |
2957 | if (ops->sb_occ_tc_port_bind_get) { |
2958 | u32 cur; | |
2959 | u32 max; | |
2960 | ||
2961 | err = ops->sb_occ_tc_port_bind_get(devlink_port, | |
2962 | devlink_sb->index, | |
2963 | tc_index, pool_type, | |
2964 | &cur, &max); | |
2965 | if (err && err != -EOPNOTSUPP) | |
2966 | return err; | |
2967 | if (!err) { | |
2968 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_OCC_CUR, cur)) | |
2969 | goto nla_put_failure; | |
2970 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_OCC_MAX, max)) | |
2971 | goto nla_put_failure; | |
2972 | } | |
2973 | } | |
2974 | ||
bf797471 JP |
2975 | genlmsg_end(msg, hdr); |
2976 | return 0; | |
2977 | ||
2978 | nla_put_failure: | |
2979 | genlmsg_cancel(msg, hdr); | |
2980 | return -EMSGSIZE; | |
2981 | } | |
2982 | ||
2983 | static int devlink_nl_cmd_sb_tc_pool_bind_get_doit(struct sk_buff *skb, | |
2984 | struct genl_info *info) | |
2985 | { | |
637989b5 | 2986 | struct devlink_port *devlink_port = info->user_ptr[1]; |
bf797471 | 2987 | struct devlink *devlink = devlink_port->devlink; |
637989b5 | 2988 | struct devlink_sb *devlink_sb; |
bf797471 JP |
2989 | struct sk_buff *msg; |
2990 | enum devlink_sb_pool_type pool_type; | |
2991 | u16 tc_index; | |
2992 | int err; | |
2993 | ||
637989b5 PP |
2994 | devlink_sb = devlink_sb_get_from_info(devlink, info); |
2995 | if (IS_ERR(devlink_sb)) | |
2996 | return PTR_ERR(devlink_sb); | |
2997 | ||
bf797471 JP |
2998 | err = devlink_sb_pool_type_get_from_info(info, &pool_type); |
2999 | if (err) | |
3000 | return err; | |
3001 | ||
3002 | err = devlink_sb_tc_index_get_from_info(devlink_sb, info, | |
3003 | pool_type, &tc_index); | |
3004 | if (err) | |
3005 | return err; | |
3006 | ||
be6fe1d8 | 3007 | if (!devlink->ops->sb_tc_pool_bind_get) |
bf797471 JP |
3008 | return -EOPNOTSUPP; |
3009 | ||
3010 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
3011 | if (!msg) | |
3012 | return -ENOMEM; | |
3013 | ||
3014 | err = devlink_nl_sb_tc_pool_bind_fill(msg, devlink, devlink_port, | |
3015 | devlink_sb, tc_index, pool_type, | |
3016 | DEVLINK_CMD_SB_TC_POOL_BIND_NEW, | |
3017 | info->snd_portid, | |
3018 | info->snd_seq, 0); | |
3019 | if (err) { | |
3020 | nlmsg_free(msg); | |
3021 | return err; | |
3022 | } | |
3023 | ||
3024 | return genlmsg_reply(msg, info); | |
3025 | } | |
3026 | ||
3027 | static int __sb_tc_pool_bind_get_dumpit(struct sk_buff *msg, | |
3028 | int start, int *p_idx, | |
3029 | struct devlink *devlink, | |
3030 | struct devlink_sb *devlink_sb, | |
3031 | u32 portid, u32 seq) | |
3032 | { | |
3033 | struct devlink_port *devlink_port; | |
3034 | u16 tc_index; | |
3035 | int err; | |
3036 | ||
3037 | list_for_each_entry(devlink_port, &devlink->port_list, list) { | |
3038 | for (tc_index = 0; | |
3039 | tc_index < devlink_sb->ingress_tc_count; tc_index++) { | |
3040 | if (*p_idx < start) { | |
3041 | (*p_idx)++; | |
3042 | continue; | |
3043 | } | |
3044 | err = devlink_nl_sb_tc_pool_bind_fill(msg, devlink, | |
3045 | devlink_port, | |
3046 | devlink_sb, | |
3047 | tc_index, | |
3048 | DEVLINK_SB_POOL_TYPE_INGRESS, | |
3049 | DEVLINK_CMD_SB_TC_POOL_BIND_NEW, | |
3050 | portid, seq, | |
3051 | NLM_F_MULTI); | |
3052 | if (err) | |
3053 | return err; | |
3054 | (*p_idx)++; | |
3055 | } | |
3056 | for (tc_index = 0; | |
3057 | tc_index < devlink_sb->egress_tc_count; tc_index++) { | |
3058 | if (*p_idx < start) { | |
3059 | (*p_idx)++; | |
3060 | continue; | |
3061 | } | |
3062 | err = devlink_nl_sb_tc_pool_bind_fill(msg, devlink, | |
3063 | devlink_port, | |
3064 | devlink_sb, | |
3065 | tc_index, | |
3066 | DEVLINK_SB_POOL_TYPE_EGRESS, | |
3067 | DEVLINK_CMD_SB_TC_POOL_BIND_NEW, | |
3068 | portid, seq, | |
3069 | NLM_F_MULTI); | |
3070 | if (err) | |
3071 | return err; | |
3072 | (*p_idx)++; | |
3073 | } | |
3074 | } | |
3075 | return 0; | |
3076 | } | |
3077 | ||
3078 | static int | |
3079 | devlink_nl_cmd_sb_tc_pool_bind_get_dumpit(struct sk_buff *msg, | |
3080 | struct netlink_callback *cb) | |
3081 | { | |
3082 | struct devlink *devlink; | |
3083 | struct devlink_sb *devlink_sb; | |
3084 | int start = cb->args[0]; | |
11a861d7 | 3085 | unsigned long index; |
bf797471 | 3086 | int idx = 0; |
c62c2cfb | 3087 | int err = 0; |
bf797471 | 3088 | |
294c4f57 JP |
3089 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
3090 | if (!devlink->ops->sb_tc_pool_bind_get) | |
437ebfd9 | 3091 | goto retry; |
2406e7e5 | 3092 | |
7715023a | 3093 | devl_lock(devlink); |
bf797471 JP |
3094 | list_for_each_entry(devlink_sb, &devlink->sb_list, list) { |
3095 | err = __sb_tc_pool_bind_get_dumpit(msg, start, &idx, | |
3096 | devlink, | |
3097 | devlink_sb, | |
3098 | NETLINK_CB(cb->skb).portid, | |
3099 | cb->nlh->nlmsg_seq); | |
82274d07 JK |
3100 | if (err == -EOPNOTSUPP) { |
3101 | err = 0; | |
3102 | } else if (err) { | |
7715023a | 3103 | devl_unlock(devlink); |
437ebfd9 | 3104 | devlink_put(devlink); |
bf797471 | 3105 | goto out; |
2406e7e5 | 3106 | } |
bf797471 | 3107 | } |
7715023a | 3108 | devl_unlock(devlink); |
437ebfd9 LR |
3109 | retry: |
3110 | devlink_put(devlink); | |
bf797471 JP |
3111 | } |
3112 | out: | |
c62c2cfb JP |
3113 | if (err != -EMSGSIZE) |
3114 | return err; | |
3115 | ||
bf797471 JP |
3116 | cb->args[0] = idx; |
3117 | return msg->len; | |
3118 | } | |
3119 | ||
3120 | static int devlink_sb_tc_pool_bind_set(struct devlink_port *devlink_port, | |
3121 | unsigned int sb_index, u16 tc_index, | |
3122 | enum devlink_sb_pool_type pool_type, | |
f2ad1a52 IS |
3123 | u16 pool_index, u32 threshold, |
3124 | struct netlink_ext_ack *extack) | |
bf797471 JP |
3125 | |
3126 | { | |
3127 | const struct devlink_ops *ops = devlink_port->devlink->ops; | |
3128 | ||
be6fe1d8 | 3129 | if (ops->sb_tc_pool_bind_set) |
bf797471 JP |
3130 | return ops->sb_tc_pool_bind_set(devlink_port, sb_index, |
3131 | tc_index, pool_type, | |
f2ad1a52 | 3132 | pool_index, threshold, extack); |
bf797471 JP |
3133 | return -EOPNOTSUPP; |
3134 | } | |
3135 | ||
3136 | static int devlink_nl_cmd_sb_tc_pool_bind_set_doit(struct sk_buff *skb, | |
3137 | struct genl_info *info) | |
3138 | { | |
637989b5 PP |
3139 | struct devlink_port *devlink_port = info->user_ptr[1]; |
3140 | struct devlink *devlink = info->user_ptr[0]; | |
bf797471 | 3141 | enum devlink_sb_pool_type pool_type; |
637989b5 | 3142 | struct devlink_sb *devlink_sb; |
bf797471 JP |
3143 | u16 tc_index; |
3144 | u16 pool_index; | |
3145 | u32 threshold; | |
3146 | int err; | |
3147 | ||
637989b5 PP |
3148 | devlink_sb = devlink_sb_get_from_info(devlink, info); |
3149 | if (IS_ERR(devlink_sb)) | |
3150 | return PTR_ERR(devlink_sb); | |
3151 | ||
bf797471 JP |
3152 | err = devlink_sb_pool_type_get_from_info(info, &pool_type); |
3153 | if (err) | |
3154 | return err; | |
3155 | ||
3156 | err = devlink_sb_tc_index_get_from_info(devlink_sb, info, | |
3157 | pool_type, &tc_index); | |
3158 | if (err) | |
3159 | return err; | |
3160 | ||
3161 | err = devlink_sb_pool_index_get_from_info(devlink_sb, info, | |
3162 | &pool_index); | |
3163 | if (err) | |
3164 | return err; | |
3165 | ||
1f7633b5 | 3166 | if (GENL_REQ_ATTR_CHECK(info, DEVLINK_ATTR_SB_THRESHOLD)) |
bf797471 JP |
3167 | return -EINVAL; |
3168 | ||
3169 | threshold = nla_get_u32(info->attrs[DEVLINK_ATTR_SB_THRESHOLD]); | |
3170 | return devlink_sb_tc_pool_bind_set(devlink_port, devlink_sb->index, | |
3171 | tc_index, pool_type, | |
f2ad1a52 | 3172 | pool_index, threshold, info->extack); |
bf797471 JP |
3173 | } |
3174 | ||
df38dafd JP |
3175 | static int devlink_nl_cmd_sb_occ_snapshot_doit(struct sk_buff *skb, |
3176 | struct genl_info *info) | |
3177 | { | |
3178 | struct devlink *devlink = info->user_ptr[0]; | |
df38dafd | 3179 | const struct devlink_ops *ops = devlink->ops; |
637989b5 PP |
3180 | struct devlink_sb *devlink_sb; |
3181 | ||
3182 | devlink_sb = devlink_sb_get_from_info(devlink, info); | |
3183 | if (IS_ERR(devlink_sb)) | |
3184 | return PTR_ERR(devlink_sb); | |
df38dafd | 3185 | |
be6fe1d8 | 3186 | if (ops->sb_occ_snapshot) |
df38dafd JP |
3187 | return ops->sb_occ_snapshot(devlink, devlink_sb->index); |
3188 | return -EOPNOTSUPP; | |
3189 | } | |
3190 | ||
3191 | static int devlink_nl_cmd_sb_occ_max_clear_doit(struct sk_buff *skb, | |
3192 | struct genl_info *info) | |
3193 | { | |
3194 | struct devlink *devlink = info->user_ptr[0]; | |
df38dafd | 3195 | const struct devlink_ops *ops = devlink->ops; |
637989b5 PP |
3196 | struct devlink_sb *devlink_sb; |
3197 | ||
3198 | devlink_sb = devlink_sb_get_from_info(devlink, info); | |
3199 | if (IS_ERR(devlink_sb)) | |
3200 | return PTR_ERR(devlink_sb); | |
df38dafd | 3201 | |
be6fe1d8 | 3202 | if (ops->sb_occ_max_clear) |
df38dafd JP |
3203 | return ops->sb_occ_max_clear(devlink, devlink_sb->index); |
3204 | return -EOPNOTSUPP; | |
3205 | } | |
3206 | ||
21e3d2dd JP |
3207 | static int devlink_nl_eswitch_fill(struct sk_buff *msg, struct devlink *devlink, |
3208 | enum devlink_command cmd, u32 portid, | |
3209 | u32 seq, int flags) | |
08f4b591 | 3210 | { |
59bfde01 | 3211 | const struct devlink_ops *ops = devlink->ops; |
98fdbea5 LR |
3212 | enum devlink_eswitch_encap_mode encap_mode; |
3213 | u8 inline_mode; | |
08f4b591 | 3214 | void *hdr; |
59bfde01 RD |
3215 | int err = 0; |
3216 | u16 mode; | |
08f4b591 OG |
3217 | |
3218 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
3219 | if (!hdr) | |
3220 | return -EMSGSIZE; | |
3221 | ||
59bfde01 RD |
3222 | err = devlink_nl_put_handle(msg, devlink); |
3223 | if (err) | |
1a6aa36b | 3224 | goto nla_put_failure; |
08f4b591 | 3225 | |
4456f61c JP |
3226 | if (ops->eswitch_mode_get) { |
3227 | err = ops->eswitch_mode_get(devlink, &mode); | |
3228 | if (err) | |
3229 | goto nla_put_failure; | |
3230 | err = nla_put_u16(msg, DEVLINK_ATTR_ESWITCH_MODE, mode); | |
3231 | if (err) | |
3232 | goto nla_put_failure; | |
3233 | } | |
59bfde01 RD |
3234 | |
3235 | if (ops->eswitch_inline_mode_get) { | |
3236 | err = ops->eswitch_inline_mode_get(devlink, &inline_mode); | |
3237 | if (err) | |
1a6aa36b | 3238 | goto nla_put_failure; |
59bfde01 RD |
3239 | err = nla_put_u8(msg, DEVLINK_ATTR_ESWITCH_INLINE_MODE, |
3240 | inline_mode); | |
3241 | if (err) | |
1a6aa36b | 3242 | goto nla_put_failure; |
59bfde01 | 3243 | } |
08f4b591 | 3244 | |
f43e9b06 RD |
3245 | if (ops->eswitch_encap_mode_get) { |
3246 | err = ops->eswitch_encap_mode_get(devlink, &encap_mode); | |
3247 | if (err) | |
3248 | goto nla_put_failure; | |
3249 | err = nla_put_u8(msg, DEVLINK_ATTR_ESWITCH_ENCAP_MODE, encap_mode); | |
3250 | if (err) | |
3251 | goto nla_put_failure; | |
3252 | } | |
3253 | ||
08f4b591 OG |
3254 | genlmsg_end(msg, hdr); |
3255 | return 0; | |
3256 | ||
1a6aa36b | 3257 | nla_put_failure: |
08f4b591 | 3258 | genlmsg_cancel(msg, hdr); |
59bfde01 | 3259 | return err; |
08f4b591 OG |
3260 | } |
3261 | ||
adf200f3 JP |
3262 | static int devlink_nl_cmd_eswitch_get_doit(struct sk_buff *skb, |
3263 | struct genl_info *info) | |
08f4b591 OG |
3264 | { |
3265 | struct devlink *devlink = info->user_ptr[0]; | |
08f4b591 | 3266 | struct sk_buff *msg; |
08f4b591 OG |
3267 | int err; |
3268 | ||
08f4b591 OG |
3269 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
3270 | if (!msg) | |
3271 | return -ENOMEM; | |
3272 | ||
21e3d2dd JP |
3273 | err = devlink_nl_eswitch_fill(msg, devlink, DEVLINK_CMD_ESWITCH_GET, |
3274 | info->snd_portid, info->snd_seq, 0); | |
08f4b591 OG |
3275 | |
3276 | if (err) { | |
3277 | nlmsg_free(msg); | |
3278 | return err; | |
3279 | } | |
3280 | ||
3281 | return genlmsg_reply(msg, info); | |
3282 | } | |
3283 | ||
a8ecb93e DL |
3284 | static int devlink_rate_nodes_check(struct devlink *devlink, u16 mode, |
3285 | struct netlink_ext_ack *extack) | |
3286 | { | |
3287 | struct devlink_rate *devlink_rate; | |
a8ecb93e DL |
3288 | |
3289 | list_for_each_entry(devlink_rate, &devlink->rate_list, list) | |
3290 | if (devlink_rate_is_node(devlink_rate)) { | |
3291 | NL_SET_ERR_MSG_MOD(extack, "Rate node(s) exists."); | |
3292 | return -EBUSY; | |
3293 | } | |
3294 | return 0; | |
3295 | } | |
3296 | ||
adf200f3 JP |
3297 | static int devlink_nl_cmd_eswitch_set_doit(struct sk_buff *skb, |
3298 | struct genl_info *info) | |
08f4b591 OG |
3299 | { |
3300 | struct devlink *devlink = info->user_ptr[0]; | |
3301 | const struct devlink_ops *ops = devlink->ops; | |
98fdbea5 LR |
3302 | enum devlink_eswitch_encap_mode encap_mode; |
3303 | u8 inline_mode; | |
59bfde01 | 3304 | int err = 0; |
f43e9b06 | 3305 | u16 mode; |
08f4b591 | 3306 | |
59bfde01 RD |
3307 | if (info->attrs[DEVLINK_ATTR_ESWITCH_MODE]) { |
3308 | if (!ops->eswitch_mode_set) | |
3309 | return -EOPNOTSUPP; | |
3310 | mode = nla_get_u16(info->attrs[DEVLINK_ATTR_ESWITCH_MODE]); | |
a8ecb93e DL |
3311 | err = devlink_rate_nodes_check(devlink, mode, info->extack); |
3312 | if (err) | |
3313 | return err; | |
db7ff19e | 3314 | err = ops->eswitch_mode_set(devlink, mode, info->extack); |
59bfde01 RD |
3315 | if (err) |
3316 | return err; | |
3317 | } | |
08f4b591 | 3318 | |
59bfde01 RD |
3319 | if (info->attrs[DEVLINK_ATTR_ESWITCH_INLINE_MODE]) { |
3320 | if (!ops->eswitch_inline_mode_set) | |
3321 | return -EOPNOTSUPP; | |
3322 | inline_mode = nla_get_u8( | |
3323 | info->attrs[DEVLINK_ATTR_ESWITCH_INLINE_MODE]); | |
db7ff19e EB |
3324 | err = ops->eswitch_inline_mode_set(devlink, inline_mode, |
3325 | info->extack); | |
59bfde01 RD |
3326 | if (err) |
3327 | return err; | |
3328 | } | |
f43e9b06 RD |
3329 | |
3330 | if (info->attrs[DEVLINK_ATTR_ESWITCH_ENCAP_MODE]) { | |
3331 | if (!ops->eswitch_encap_mode_set) | |
3332 | return -EOPNOTSUPP; | |
3333 | encap_mode = nla_get_u8(info->attrs[DEVLINK_ATTR_ESWITCH_ENCAP_MODE]); | |
db7ff19e EB |
3334 | err = ops->eswitch_encap_mode_set(devlink, encap_mode, |
3335 | info->extack); | |
f43e9b06 RD |
3336 | if (err) |
3337 | return err; | |
3338 | } | |
3339 | ||
1555d204 AS |
3340 | return 0; |
3341 | } | |
3342 | ||
3343 | int devlink_dpipe_match_put(struct sk_buff *skb, | |
3344 | struct devlink_dpipe_match *match) | |
3345 | { | |
3346 | struct devlink_dpipe_header *header = match->header; | |
3347 | struct devlink_dpipe_field *field = &header->fields[match->field_id]; | |
3348 | struct nlattr *match_attr; | |
3349 | ||
ae0be8de | 3350 | match_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_MATCH); |
1555d204 AS |
3351 | if (!match_attr) |
3352 | return -EMSGSIZE; | |
3353 | ||
3354 | if (nla_put_u32(skb, DEVLINK_ATTR_DPIPE_MATCH_TYPE, match->type) || | |
3355 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_INDEX, match->header_index) || | |
3356 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_ID, header->id) || | |
3357 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_ID, field->id) || | |
3358 | nla_put_u8(skb, DEVLINK_ATTR_DPIPE_HEADER_GLOBAL, header->global)) | |
3359 | goto nla_put_failure; | |
3360 | ||
3361 | nla_nest_end(skb, match_attr); | |
3362 | return 0; | |
3363 | ||
3364 | nla_put_failure: | |
3365 | nla_nest_cancel(skb, match_attr); | |
3366 | return -EMSGSIZE; | |
3367 | } | |
3368 | EXPORT_SYMBOL_GPL(devlink_dpipe_match_put); | |
3369 | ||
3370 | static int devlink_dpipe_matches_put(struct devlink_dpipe_table *table, | |
3371 | struct sk_buff *skb) | |
3372 | { | |
3373 | struct nlattr *matches_attr; | |
3374 | ||
ae0be8de MK |
3375 | matches_attr = nla_nest_start_noflag(skb, |
3376 | DEVLINK_ATTR_DPIPE_TABLE_MATCHES); | |
1555d204 AS |
3377 | if (!matches_attr) |
3378 | return -EMSGSIZE; | |
3379 | ||
3380 | if (table->table_ops->matches_dump(table->priv, skb)) | |
3381 | goto nla_put_failure; | |
3382 | ||
3383 | nla_nest_end(skb, matches_attr); | |
3384 | return 0; | |
3385 | ||
3386 | nla_put_failure: | |
3387 | nla_nest_cancel(skb, matches_attr); | |
3388 | return -EMSGSIZE; | |
3389 | } | |
3390 | ||
3391 | int devlink_dpipe_action_put(struct sk_buff *skb, | |
3392 | struct devlink_dpipe_action *action) | |
3393 | { | |
3394 | struct devlink_dpipe_header *header = action->header; | |
3395 | struct devlink_dpipe_field *field = &header->fields[action->field_id]; | |
3396 | struct nlattr *action_attr; | |
3397 | ||
ae0be8de | 3398 | action_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_ACTION); |
1555d204 AS |
3399 | if (!action_attr) |
3400 | return -EMSGSIZE; | |
3401 | ||
3402 | if (nla_put_u32(skb, DEVLINK_ATTR_DPIPE_ACTION_TYPE, action->type) || | |
3403 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_INDEX, action->header_index) || | |
3404 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_ID, header->id) || | |
3405 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_ID, field->id) || | |
3406 | nla_put_u8(skb, DEVLINK_ATTR_DPIPE_HEADER_GLOBAL, header->global)) | |
3407 | goto nla_put_failure; | |
3408 | ||
3409 | nla_nest_end(skb, action_attr); | |
3410 | return 0; | |
3411 | ||
3412 | nla_put_failure: | |
3413 | nla_nest_cancel(skb, action_attr); | |
3414 | return -EMSGSIZE; | |
3415 | } | |
3416 | EXPORT_SYMBOL_GPL(devlink_dpipe_action_put); | |
3417 | ||
3418 | static int devlink_dpipe_actions_put(struct devlink_dpipe_table *table, | |
3419 | struct sk_buff *skb) | |
3420 | { | |
3421 | struct nlattr *actions_attr; | |
3422 | ||
ae0be8de MK |
3423 | actions_attr = nla_nest_start_noflag(skb, |
3424 | DEVLINK_ATTR_DPIPE_TABLE_ACTIONS); | |
1555d204 AS |
3425 | if (!actions_attr) |
3426 | return -EMSGSIZE; | |
3427 | ||
3428 | if (table->table_ops->actions_dump(table->priv, skb)) | |
3429 | goto nla_put_failure; | |
3430 | ||
3431 | nla_nest_end(skb, actions_attr); | |
3432 | return 0; | |
3433 | ||
3434 | nla_put_failure: | |
3435 | nla_nest_cancel(skb, actions_attr); | |
3436 | return -EMSGSIZE; | |
3437 | } | |
3438 | ||
3439 | static int devlink_dpipe_table_put(struct sk_buff *skb, | |
3440 | struct devlink_dpipe_table *table) | |
3441 | { | |
3442 | struct nlattr *table_attr; | |
ffd3cdcc | 3443 | u64 table_size; |
1555d204 | 3444 | |
ffd3cdcc | 3445 | table_size = table->table_ops->size_get(table->priv); |
ae0be8de | 3446 | table_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_TABLE); |
1555d204 AS |
3447 | if (!table_attr) |
3448 | return -EMSGSIZE; | |
3449 | ||
3450 | if (nla_put_string(skb, DEVLINK_ATTR_DPIPE_TABLE_NAME, table->name) || | |
ffd3cdcc | 3451 | nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_TABLE_SIZE, table_size, |
1555d204 AS |
3452 | DEVLINK_ATTR_PAD)) |
3453 | goto nla_put_failure; | |
3454 | if (nla_put_u8(skb, DEVLINK_ATTR_DPIPE_TABLE_COUNTERS_ENABLED, | |
3455 | table->counters_enabled)) | |
3456 | goto nla_put_failure; | |
3457 | ||
56dc7cd0 | 3458 | if (table->resource_valid) { |
3d18e4f1 AS |
3459 | if (nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_TABLE_RESOURCE_ID, |
3460 | table->resource_id, DEVLINK_ATTR_PAD) || | |
3461 | nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_TABLE_RESOURCE_UNITS, | |
3462 | table->resource_units, DEVLINK_ATTR_PAD)) | |
3463 | goto nla_put_failure; | |
56dc7cd0 | 3464 | } |
1555d204 AS |
3465 | if (devlink_dpipe_matches_put(table, skb)) |
3466 | goto nla_put_failure; | |
3467 | ||
3468 | if (devlink_dpipe_actions_put(table, skb)) | |
3469 | goto nla_put_failure; | |
3470 | ||
3471 | nla_nest_end(skb, table_attr); | |
3472 | return 0; | |
3473 | ||
3474 | nla_put_failure: | |
3475 | nla_nest_cancel(skb, table_attr); | |
3476 | return -EMSGSIZE; | |
3477 | } | |
3478 | ||
3479 | static int devlink_dpipe_send_and_alloc_skb(struct sk_buff **pskb, | |
3480 | struct genl_info *info) | |
3481 | { | |
3482 | int err; | |
3483 | ||
3484 | if (*pskb) { | |
3485 | err = genlmsg_reply(*pskb, info); | |
3486 | if (err) | |
3487 | return err; | |
3488 | } | |
3489 | *pskb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
3490 | if (!*pskb) | |
3491 | return -ENOMEM; | |
3492 | return 0; | |
3493 | } | |
3494 | ||
3495 | static int devlink_dpipe_tables_fill(struct genl_info *info, | |
3496 | enum devlink_command cmd, int flags, | |
3497 | struct list_head *dpipe_tables, | |
3498 | const char *table_name) | |
3499 | { | |
3500 | struct devlink *devlink = info->user_ptr[0]; | |
3501 | struct devlink_dpipe_table *table; | |
3502 | struct nlattr *tables_attr; | |
3503 | struct sk_buff *skb = NULL; | |
3504 | struct nlmsghdr *nlh; | |
3505 | bool incomplete; | |
3506 | void *hdr; | |
3507 | int i; | |
3508 | int err; | |
3509 | ||
3510 | table = list_first_entry(dpipe_tables, | |
3511 | struct devlink_dpipe_table, list); | |
3512 | start_again: | |
3513 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); | |
3514 | if (err) | |
3515 | return err; | |
3516 | ||
3517 | hdr = genlmsg_put(skb, info->snd_portid, info->snd_seq, | |
3518 | &devlink_nl_family, NLM_F_MULTI, cmd); | |
6044bd4a HY |
3519 | if (!hdr) { |
3520 | nlmsg_free(skb); | |
1555d204 | 3521 | return -EMSGSIZE; |
6044bd4a | 3522 | } |
1555d204 AS |
3523 | |
3524 | if (devlink_nl_put_handle(skb, devlink)) | |
3525 | goto nla_put_failure; | |
ae0be8de | 3526 | tables_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_TABLES); |
1555d204 AS |
3527 | if (!tables_attr) |
3528 | goto nla_put_failure; | |
3529 | ||
3530 | i = 0; | |
3531 | incomplete = false; | |
3532 | list_for_each_entry_from(table, dpipe_tables, list) { | |
3533 | if (!table_name) { | |
3534 | err = devlink_dpipe_table_put(skb, table); | |
3535 | if (err) { | |
3536 | if (!i) | |
3537 | goto err_table_put; | |
3538 | incomplete = true; | |
3539 | break; | |
3540 | } | |
3541 | } else { | |
3542 | if (!strcmp(table->name, table_name)) { | |
3543 | err = devlink_dpipe_table_put(skb, table); | |
3544 | if (err) | |
3545 | break; | |
3546 | } | |
3547 | } | |
3548 | i++; | |
3549 | } | |
3550 | ||
3551 | nla_nest_end(skb, tables_attr); | |
3552 | genlmsg_end(skb, hdr); | |
3553 | if (incomplete) | |
3554 | goto start_again; | |
3555 | ||
3556 | send_done: | |
3557 | nlh = nlmsg_put(skb, info->snd_portid, info->snd_seq, | |
3558 | NLMSG_DONE, 0, flags | NLM_F_MULTI); | |
3559 | if (!nlh) { | |
3560 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); | |
3561 | if (err) | |
7fe4d6dc | 3562 | return err; |
1555d204 AS |
3563 | goto send_done; |
3564 | } | |
3565 | ||
3566 | return genlmsg_reply(skb, info); | |
3567 | ||
3568 | nla_put_failure: | |
3569 | err = -EMSGSIZE; | |
3570 | err_table_put: | |
1555d204 AS |
3571 | nlmsg_free(skb); |
3572 | return err; | |
3573 | } | |
3574 | ||
3575 | static int devlink_nl_cmd_dpipe_table_get(struct sk_buff *skb, | |
3576 | struct genl_info *info) | |
3577 | { | |
3578 | struct devlink *devlink = info->user_ptr[0]; | |
3579 | const char *table_name = NULL; | |
3580 | ||
3581 | if (info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME]) | |
3582 | table_name = nla_data(info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME]); | |
3583 | ||
3584 | return devlink_dpipe_tables_fill(info, DEVLINK_CMD_DPIPE_TABLE_GET, 0, | |
3585 | &devlink->dpipe_table_list, | |
3586 | table_name); | |
3587 | } | |
3588 | ||
3589 | static int devlink_dpipe_value_put(struct sk_buff *skb, | |
3590 | struct devlink_dpipe_value *value) | |
3591 | { | |
3592 | if (nla_put(skb, DEVLINK_ATTR_DPIPE_VALUE, | |
3593 | value->value_size, value->value)) | |
3594 | return -EMSGSIZE; | |
3595 | if (value->mask) | |
3596 | if (nla_put(skb, DEVLINK_ATTR_DPIPE_VALUE_MASK, | |
3597 | value->value_size, value->mask)) | |
3598 | return -EMSGSIZE; | |
3599 | if (value->mapping_valid) | |
3600 | if (nla_put_u32(skb, DEVLINK_ATTR_DPIPE_VALUE_MAPPING, | |
3601 | value->mapping_value)) | |
3602 | return -EMSGSIZE; | |
3603 | return 0; | |
3604 | } | |
3605 | ||
3606 | static int devlink_dpipe_action_value_put(struct sk_buff *skb, | |
3607 | struct devlink_dpipe_value *value) | |
3608 | { | |
3609 | if (!value->action) | |
3610 | return -EINVAL; | |
3611 | if (devlink_dpipe_action_put(skb, value->action)) | |
3612 | return -EMSGSIZE; | |
3613 | if (devlink_dpipe_value_put(skb, value)) | |
3614 | return -EMSGSIZE; | |
3615 | return 0; | |
3616 | } | |
3617 | ||
3618 | static int devlink_dpipe_action_values_put(struct sk_buff *skb, | |
3619 | struct devlink_dpipe_value *values, | |
3620 | unsigned int values_count) | |
3621 | { | |
3622 | struct nlattr *action_attr; | |
3623 | int i; | |
3624 | int err; | |
3625 | ||
3626 | for (i = 0; i < values_count; i++) { | |
ae0be8de MK |
3627 | action_attr = nla_nest_start_noflag(skb, |
3628 | DEVLINK_ATTR_DPIPE_ACTION_VALUE); | |
1555d204 AS |
3629 | if (!action_attr) |
3630 | return -EMSGSIZE; | |
3631 | err = devlink_dpipe_action_value_put(skb, &values[i]); | |
3632 | if (err) | |
3633 | goto err_action_value_put; | |
3634 | nla_nest_end(skb, action_attr); | |
3635 | } | |
3636 | return 0; | |
3637 | ||
3638 | err_action_value_put: | |
3639 | nla_nest_cancel(skb, action_attr); | |
3640 | return err; | |
3641 | } | |
3642 | ||
3643 | static int devlink_dpipe_match_value_put(struct sk_buff *skb, | |
3644 | struct devlink_dpipe_value *value) | |
3645 | { | |
3646 | if (!value->match) | |
3647 | return -EINVAL; | |
3648 | if (devlink_dpipe_match_put(skb, value->match)) | |
3649 | return -EMSGSIZE; | |
3650 | if (devlink_dpipe_value_put(skb, value)) | |
3651 | return -EMSGSIZE; | |
3652 | return 0; | |
3653 | } | |
3654 | ||
3655 | static int devlink_dpipe_match_values_put(struct sk_buff *skb, | |
3656 | struct devlink_dpipe_value *values, | |
3657 | unsigned int values_count) | |
3658 | { | |
3659 | struct nlattr *match_attr; | |
3660 | int i; | |
3661 | int err; | |
3662 | ||
3663 | for (i = 0; i < values_count; i++) { | |
ae0be8de MK |
3664 | match_attr = nla_nest_start_noflag(skb, |
3665 | DEVLINK_ATTR_DPIPE_MATCH_VALUE); | |
1555d204 AS |
3666 | if (!match_attr) |
3667 | return -EMSGSIZE; | |
3668 | err = devlink_dpipe_match_value_put(skb, &values[i]); | |
3669 | if (err) | |
3670 | goto err_match_value_put; | |
3671 | nla_nest_end(skb, match_attr); | |
3672 | } | |
3673 | return 0; | |
3674 | ||
3675 | err_match_value_put: | |
3676 | nla_nest_cancel(skb, match_attr); | |
3677 | return err; | |
3678 | } | |
3679 | ||
3680 | static int devlink_dpipe_entry_put(struct sk_buff *skb, | |
3681 | struct devlink_dpipe_entry *entry) | |
3682 | { | |
3683 | struct nlattr *entry_attr, *matches_attr, *actions_attr; | |
3684 | int err; | |
3685 | ||
ae0be8de | 3686 | entry_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_ENTRY); |
1555d204 AS |
3687 | if (!entry_attr) |
3688 | return -EMSGSIZE; | |
3689 | ||
3690 | if (nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_ENTRY_INDEX, entry->index, | |
3691 | DEVLINK_ATTR_PAD)) | |
3692 | goto nla_put_failure; | |
3693 | if (entry->counter_valid) | |
3694 | if (nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_ENTRY_COUNTER, | |
3695 | entry->counter, DEVLINK_ATTR_PAD)) | |
3696 | goto nla_put_failure; | |
3697 | ||
ae0be8de MK |
3698 | matches_attr = nla_nest_start_noflag(skb, |
3699 | DEVLINK_ATTR_DPIPE_ENTRY_MATCH_VALUES); | |
1555d204 AS |
3700 | if (!matches_attr) |
3701 | goto nla_put_failure; | |
3702 | ||
3703 | err = devlink_dpipe_match_values_put(skb, entry->match_values, | |
3704 | entry->match_values_count); | |
3705 | if (err) { | |
3706 | nla_nest_cancel(skb, matches_attr); | |
3707 | goto err_match_values_put; | |
3708 | } | |
3709 | nla_nest_end(skb, matches_attr); | |
3710 | ||
ae0be8de MK |
3711 | actions_attr = nla_nest_start_noflag(skb, |
3712 | DEVLINK_ATTR_DPIPE_ENTRY_ACTION_VALUES); | |
1555d204 AS |
3713 | if (!actions_attr) |
3714 | goto nla_put_failure; | |
3715 | ||
3716 | err = devlink_dpipe_action_values_put(skb, entry->action_values, | |
3717 | entry->action_values_count); | |
3718 | if (err) { | |
3719 | nla_nest_cancel(skb, actions_attr); | |
3720 | goto err_action_values_put; | |
3721 | } | |
3722 | nla_nest_end(skb, actions_attr); | |
59bfde01 | 3723 | |
1555d204 | 3724 | nla_nest_end(skb, entry_attr); |
59bfde01 | 3725 | return 0; |
1555d204 AS |
3726 | |
3727 | nla_put_failure: | |
3728 | err = -EMSGSIZE; | |
3729 | err_match_values_put: | |
3730 | err_action_values_put: | |
3731 | nla_nest_cancel(skb, entry_attr); | |
3732 | return err; | |
3733 | } | |
3734 | ||
3735 | static struct devlink_dpipe_table * | |
3736 | devlink_dpipe_table_find(struct list_head *dpipe_tables, | |
2eb51c75 | 3737 | const char *table_name, struct devlink *devlink) |
1555d204 AS |
3738 | { |
3739 | struct devlink_dpipe_table *table; | |
2eb51c75 MB |
3740 | list_for_each_entry_rcu(table, dpipe_tables, list, |
3741 | lockdep_is_held(&devlink->lock)) { | |
1555d204 AS |
3742 | if (!strcmp(table->name, table_name)) |
3743 | return table; | |
3744 | } | |
3745 | return NULL; | |
3746 | } | |
3747 | ||
3748 | int devlink_dpipe_entry_ctx_prepare(struct devlink_dpipe_dump_ctx *dump_ctx) | |
3749 | { | |
3750 | struct devlink *devlink; | |
3751 | int err; | |
3752 | ||
3753 | err = devlink_dpipe_send_and_alloc_skb(&dump_ctx->skb, | |
3754 | dump_ctx->info); | |
3755 | if (err) | |
3756 | return err; | |
3757 | ||
3758 | dump_ctx->hdr = genlmsg_put(dump_ctx->skb, | |
3759 | dump_ctx->info->snd_portid, | |
3760 | dump_ctx->info->snd_seq, | |
3761 | &devlink_nl_family, NLM_F_MULTI, | |
3762 | dump_ctx->cmd); | |
3763 | if (!dump_ctx->hdr) | |
3764 | goto nla_put_failure; | |
3765 | ||
3766 | devlink = dump_ctx->info->user_ptr[0]; | |
3767 | if (devlink_nl_put_handle(dump_ctx->skb, devlink)) | |
3768 | goto nla_put_failure; | |
ae0be8de MK |
3769 | dump_ctx->nest = nla_nest_start_noflag(dump_ctx->skb, |
3770 | DEVLINK_ATTR_DPIPE_ENTRIES); | |
1555d204 AS |
3771 | if (!dump_ctx->nest) |
3772 | goto nla_put_failure; | |
3773 | return 0; | |
3774 | ||
3775 | nla_put_failure: | |
1555d204 AS |
3776 | nlmsg_free(dump_ctx->skb); |
3777 | return -EMSGSIZE; | |
3778 | } | |
3779 | EXPORT_SYMBOL_GPL(devlink_dpipe_entry_ctx_prepare); | |
3780 | ||
3781 | int devlink_dpipe_entry_ctx_append(struct devlink_dpipe_dump_ctx *dump_ctx, | |
3782 | struct devlink_dpipe_entry *entry) | |
3783 | { | |
3784 | return devlink_dpipe_entry_put(dump_ctx->skb, entry); | |
3785 | } | |
3786 | EXPORT_SYMBOL_GPL(devlink_dpipe_entry_ctx_append); | |
3787 | ||
3788 | int devlink_dpipe_entry_ctx_close(struct devlink_dpipe_dump_ctx *dump_ctx) | |
3789 | { | |
3790 | nla_nest_end(dump_ctx->skb, dump_ctx->nest); | |
3791 | genlmsg_end(dump_ctx->skb, dump_ctx->hdr); | |
3792 | return 0; | |
3793 | } | |
3794 | EXPORT_SYMBOL_GPL(devlink_dpipe_entry_ctx_close); | |
3795 | ||
35807324 AS |
3796 | void devlink_dpipe_entry_clear(struct devlink_dpipe_entry *entry) |
3797 | ||
3798 | { | |
3799 | unsigned int value_count, value_index; | |
3800 | struct devlink_dpipe_value *value; | |
3801 | ||
3802 | value = entry->action_values; | |
3803 | value_count = entry->action_values_count; | |
3804 | for (value_index = 0; value_index < value_count; value_index++) { | |
3805 | kfree(value[value_index].value); | |
3806 | kfree(value[value_index].mask); | |
3807 | } | |
3808 | ||
3809 | value = entry->match_values; | |
3810 | value_count = entry->match_values_count; | |
3811 | for (value_index = 0; value_index < value_count; value_index++) { | |
3812 | kfree(value[value_index].value); | |
3813 | kfree(value[value_index].mask); | |
3814 | } | |
3815 | } | |
c52ef04d | 3816 | EXPORT_SYMBOL_GPL(devlink_dpipe_entry_clear); |
35807324 | 3817 | |
1555d204 AS |
3818 | static int devlink_dpipe_entries_fill(struct genl_info *info, |
3819 | enum devlink_command cmd, int flags, | |
3820 | struct devlink_dpipe_table *table) | |
3821 | { | |
3822 | struct devlink_dpipe_dump_ctx dump_ctx; | |
3823 | struct nlmsghdr *nlh; | |
3824 | int err; | |
3825 | ||
3826 | dump_ctx.skb = NULL; | |
3827 | dump_ctx.cmd = cmd; | |
3828 | dump_ctx.info = info; | |
3829 | ||
3830 | err = table->table_ops->entries_dump(table->priv, | |
3831 | table->counters_enabled, | |
3832 | &dump_ctx); | |
3833 | if (err) | |
7fe4d6dc | 3834 | return err; |
1555d204 AS |
3835 | |
3836 | send_done: | |
3837 | nlh = nlmsg_put(dump_ctx.skb, info->snd_portid, info->snd_seq, | |
3838 | NLMSG_DONE, 0, flags | NLM_F_MULTI); | |
3839 | if (!nlh) { | |
3840 | err = devlink_dpipe_send_and_alloc_skb(&dump_ctx.skb, info); | |
3841 | if (err) | |
7fe4d6dc | 3842 | return err; |
1555d204 AS |
3843 | goto send_done; |
3844 | } | |
3845 | return genlmsg_reply(dump_ctx.skb, info); | |
1555d204 AS |
3846 | } |
3847 | ||
3848 | static int devlink_nl_cmd_dpipe_entries_get(struct sk_buff *skb, | |
3849 | struct genl_info *info) | |
3850 | { | |
3851 | struct devlink *devlink = info->user_ptr[0]; | |
3852 | struct devlink_dpipe_table *table; | |
3853 | const char *table_name; | |
3854 | ||
1f7633b5 | 3855 | if (GENL_REQ_ATTR_CHECK(info, DEVLINK_ATTR_DPIPE_TABLE_NAME)) |
1555d204 AS |
3856 | return -EINVAL; |
3857 | ||
3858 | table_name = nla_data(info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME]); | |
3859 | table = devlink_dpipe_table_find(&devlink->dpipe_table_list, | |
2eb51c75 | 3860 | table_name, devlink); |
1555d204 AS |
3861 | if (!table) |
3862 | return -EINVAL; | |
3863 | ||
3864 | if (!table->table_ops->entries_dump) | |
3865 | return -EINVAL; | |
3866 | ||
3867 | return devlink_dpipe_entries_fill(info, DEVLINK_CMD_DPIPE_ENTRIES_GET, | |
3868 | 0, table); | |
3869 | } | |
3870 | ||
3871 | static int devlink_dpipe_fields_put(struct sk_buff *skb, | |
3872 | const struct devlink_dpipe_header *header) | |
3873 | { | |
3874 | struct devlink_dpipe_field *field; | |
3875 | struct nlattr *field_attr; | |
3876 | int i; | |
3877 | ||
3878 | for (i = 0; i < header->fields_count; i++) { | |
3879 | field = &header->fields[i]; | |
ae0be8de MK |
3880 | field_attr = nla_nest_start_noflag(skb, |
3881 | DEVLINK_ATTR_DPIPE_FIELD); | |
1555d204 AS |
3882 | if (!field_attr) |
3883 | return -EMSGSIZE; | |
3884 | if (nla_put_string(skb, DEVLINK_ATTR_DPIPE_FIELD_NAME, field->name) || | |
3885 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_ID, field->id) || | |
3886 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_BITWIDTH, field->bitwidth) || | |
3887 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_MAPPING_TYPE, field->mapping_type)) | |
3888 | goto nla_put_failure; | |
3889 | nla_nest_end(skb, field_attr); | |
3890 | } | |
3891 | return 0; | |
3892 | ||
3893 | nla_put_failure: | |
3894 | nla_nest_cancel(skb, field_attr); | |
3895 | return -EMSGSIZE; | |
3896 | } | |
3897 | ||
3898 | static int devlink_dpipe_header_put(struct sk_buff *skb, | |
3899 | struct devlink_dpipe_header *header) | |
3900 | { | |
3901 | struct nlattr *fields_attr, *header_attr; | |
3902 | int err; | |
3903 | ||
ae0be8de | 3904 | header_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_HEADER); |
cb6bf9cf | 3905 | if (!header_attr) |
1555d204 AS |
3906 | return -EMSGSIZE; |
3907 | ||
3908 | if (nla_put_string(skb, DEVLINK_ATTR_DPIPE_HEADER_NAME, header->name) || | |
3909 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_ID, header->id) || | |
3910 | nla_put_u8(skb, DEVLINK_ATTR_DPIPE_HEADER_GLOBAL, header->global)) | |
3911 | goto nla_put_failure; | |
3912 | ||
ae0be8de MK |
3913 | fields_attr = nla_nest_start_noflag(skb, |
3914 | DEVLINK_ATTR_DPIPE_HEADER_FIELDS); | |
1555d204 AS |
3915 | if (!fields_attr) |
3916 | goto nla_put_failure; | |
3917 | ||
3918 | err = devlink_dpipe_fields_put(skb, header); | |
3919 | if (err) { | |
3920 | nla_nest_cancel(skb, fields_attr); | |
3921 | goto nla_put_failure; | |
3922 | } | |
3923 | nla_nest_end(skb, fields_attr); | |
3924 | nla_nest_end(skb, header_attr); | |
3925 | return 0; | |
3926 | ||
3927 | nla_put_failure: | |
3928 | err = -EMSGSIZE; | |
3929 | nla_nest_cancel(skb, header_attr); | |
3930 | return err; | |
3931 | } | |
3932 | ||
3933 | static int devlink_dpipe_headers_fill(struct genl_info *info, | |
3934 | enum devlink_command cmd, int flags, | |
3935 | struct devlink_dpipe_headers * | |
3936 | dpipe_headers) | |
3937 | { | |
3938 | struct devlink *devlink = info->user_ptr[0]; | |
3939 | struct nlattr *headers_attr; | |
3940 | struct sk_buff *skb = NULL; | |
3941 | struct nlmsghdr *nlh; | |
3942 | void *hdr; | |
3943 | int i, j; | |
3944 | int err; | |
3945 | ||
3946 | i = 0; | |
3947 | start_again: | |
3948 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); | |
3949 | if (err) | |
3950 | return err; | |
3951 | ||
3952 | hdr = genlmsg_put(skb, info->snd_portid, info->snd_seq, | |
3953 | &devlink_nl_family, NLM_F_MULTI, cmd); | |
6044bd4a HY |
3954 | if (!hdr) { |
3955 | nlmsg_free(skb); | |
1555d204 | 3956 | return -EMSGSIZE; |
6044bd4a | 3957 | } |
1555d204 AS |
3958 | |
3959 | if (devlink_nl_put_handle(skb, devlink)) | |
3960 | goto nla_put_failure; | |
ae0be8de | 3961 | headers_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_HEADERS); |
1555d204 AS |
3962 | if (!headers_attr) |
3963 | goto nla_put_failure; | |
3964 | ||
3965 | j = 0; | |
3966 | for (; i < dpipe_headers->headers_count; i++) { | |
3967 | err = devlink_dpipe_header_put(skb, dpipe_headers->headers[i]); | |
3968 | if (err) { | |
3969 | if (!j) | |
3970 | goto err_table_put; | |
3971 | break; | |
3972 | } | |
3973 | j++; | |
3974 | } | |
3975 | nla_nest_end(skb, headers_attr); | |
3976 | genlmsg_end(skb, hdr); | |
3977 | if (i != dpipe_headers->headers_count) | |
3978 | goto start_again; | |
3979 | ||
3980 | send_done: | |
3981 | nlh = nlmsg_put(skb, info->snd_portid, info->snd_seq, | |
3982 | NLMSG_DONE, 0, flags | NLM_F_MULTI); | |
3983 | if (!nlh) { | |
3984 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); | |
3985 | if (err) | |
7fe4d6dc | 3986 | return err; |
1555d204 AS |
3987 | goto send_done; |
3988 | } | |
3989 | return genlmsg_reply(skb, info); | |
3990 | ||
3991 | nla_put_failure: | |
3992 | err = -EMSGSIZE; | |
3993 | err_table_put: | |
1555d204 AS |
3994 | nlmsg_free(skb); |
3995 | return err; | |
3996 | } | |
3997 | ||
3998 | static int devlink_nl_cmd_dpipe_headers_get(struct sk_buff *skb, | |
3999 | struct genl_info *info) | |
4000 | { | |
4001 | struct devlink *devlink = info->user_ptr[0]; | |
4002 | ||
4003 | if (!devlink->dpipe_headers) | |
4004 | return -EOPNOTSUPP; | |
4005 | return devlink_dpipe_headers_fill(info, DEVLINK_CMD_DPIPE_HEADERS_GET, | |
4006 | 0, devlink->dpipe_headers); | |
4007 | } | |
4008 | ||
4009 | static int devlink_dpipe_table_counters_set(struct devlink *devlink, | |
4010 | const char *table_name, | |
4011 | bool enable) | |
4012 | { | |
4013 | struct devlink_dpipe_table *table; | |
4014 | ||
4015 | table = devlink_dpipe_table_find(&devlink->dpipe_table_list, | |
2eb51c75 | 4016 | table_name, devlink); |
1555d204 AS |
4017 | if (!table) |
4018 | return -EINVAL; | |
4019 | ||
4020 | if (table->counter_control_extern) | |
4021 | return -EOPNOTSUPP; | |
4022 | ||
4023 | if (!(table->counters_enabled ^ enable)) | |
4024 | return 0; | |
4025 | ||
4026 | table->counters_enabled = enable; | |
4027 | if (table->table_ops->counters_set_update) | |
4028 | table->table_ops->counters_set_update(table->priv, enable); | |
4029 | return 0; | |
4030 | } | |
4031 | ||
4032 | static int devlink_nl_cmd_dpipe_table_counters_set(struct sk_buff *skb, | |
4033 | struct genl_info *info) | |
4034 | { | |
4035 | struct devlink *devlink = info->user_ptr[0]; | |
4036 | const char *table_name; | |
4037 | bool counters_enable; | |
4038 | ||
1f7633b5 JK |
4039 | if (GENL_REQ_ATTR_CHECK(info, DEVLINK_ATTR_DPIPE_TABLE_NAME) || |
4040 | GENL_REQ_ATTR_CHECK(info, | |
4041 | DEVLINK_ATTR_DPIPE_TABLE_COUNTERS_ENABLED)) | |
1555d204 AS |
4042 | return -EINVAL; |
4043 | ||
4044 | table_name = nla_data(info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME]); | |
4045 | counters_enable = !!nla_get_u8(info->attrs[DEVLINK_ATTR_DPIPE_TABLE_COUNTERS_ENABLED]); | |
4046 | ||
4047 | return devlink_dpipe_table_counters_set(devlink, table_name, | |
4048 | counters_enable); | |
08f4b591 OG |
4049 | } |
4050 | ||
43dd7512 | 4051 | static struct devlink_resource * |
d9f9b9a4 AS |
4052 | devlink_resource_find(struct devlink *devlink, |
4053 | struct devlink_resource *resource, u64 resource_id) | |
4054 | { | |
4055 | struct list_head *resource_list; | |
4056 | ||
4057 | if (resource) | |
4058 | resource_list = &resource->resource_list; | |
4059 | else | |
4060 | resource_list = &devlink->resource_list; | |
4061 | ||
4062 | list_for_each_entry(resource, resource_list, list) { | |
4063 | struct devlink_resource *child_resource; | |
4064 | ||
4065 | if (resource->id == resource_id) | |
4066 | return resource; | |
4067 | ||
4068 | child_resource = devlink_resource_find(devlink, resource, | |
4069 | resource_id); | |
4070 | if (child_resource) | |
4071 | return child_resource; | |
4072 | } | |
4073 | return NULL; | |
4074 | } | |
4075 | ||
43dd7512 WY |
4076 | static void |
4077 | devlink_resource_validate_children(struct devlink_resource *resource) | |
d9f9b9a4 AS |
4078 | { |
4079 | struct devlink_resource *child_resource; | |
4080 | bool size_valid = true; | |
4081 | u64 parts_size = 0; | |
4082 | ||
4083 | if (list_empty(&resource->resource_list)) | |
4084 | goto out; | |
4085 | ||
4086 | list_for_each_entry(child_resource, &resource->resource_list, list) | |
4087 | parts_size += child_resource->size_new; | |
4088 | ||
b9d17175 | 4089 | if (parts_size > resource->size_new) |
d9f9b9a4 AS |
4090 | size_valid = false; |
4091 | out: | |
4092 | resource->size_valid = size_valid; | |
4093 | } | |
4094 | ||
cc944ead AS |
4095 | static int |
4096 | devlink_resource_validate_size(struct devlink_resource *resource, u64 size, | |
4097 | struct netlink_ext_ack *extack) | |
4098 | { | |
4099 | u64 reminder; | |
4100 | int err = 0; | |
4101 | ||
0f3e9c97 | 4102 | if (size > resource->size_params.size_max) { |
cc944ead AS |
4103 | NL_SET_ERR_MSG_MOD(extack, "Size larger than maximum"); |
4104 | err = -EINVAL; | |
4105 | } | |
4106 | ||
0f3e9c97 | 4107 | if (size < resource->size_params.size_min) { |
cc944ead AS |
4108 | NL_SET_ERR_MSG_MOD(extack, "Size smaller than minimum"); |
4109 | err = -EINVAL; | |
4110 | } | |
4111 | ||
0f3e9c97 | 4112 | div64_u64_rem(size, resource->size_params.size_granularity, &reminder); |
cc944ead AS |
4113 | if (reminder) { |
4114 | NL_SET_ERR_MSG_MOD(extack, "Wrong granularity"); | |
4115 | err = -EINVAL; | |
4116 | } | |
4117 | ||
4118 | return err; | |
4119 | } | |
4120 | ||
d9f9b9a4 AS |
4121 | static int devlink_nl_cmd_resource_set(struct sk_buff *skb, |
4122 | struct genl_info *info) | |
4123 | { | |
4124 | struct devlink *devlink = info->user_ptr[0]; | |
4125 | struct devlink_resource *resource; | |
4126 | u64 resource_id; | |
4127 | u64 size; | |
4128 | int err; | |
4129 | ||
1f7633b5 JK |
4130 | if (GENL_REQ_ATTR_CHECK(info, DEVLINK_ATTR_RESOURCE_ID) || |
4131 | GENL_REQ_ATTR_CHECK(info, DEVLINK_ATTR_RESOURCE_SIZE)) | |
d9f9b9a4 AS |
4132 | return -EINVAL; |
4133 | resource_id = nla_get_u64(info->attrs[DEVLINK_ATTR_RESOURCE_ID]); | |
4134 | ||
4135 | resource = devlink_resource_find(devlink, NULL, resource_id); | |
4136 | if (!resource) | |
4137 | return -EINVAL; | |
4138 | ||
d9f9b9a4 | 4139 | size = nla_get_u64(info->attrs[DEVLINK_ATTR_RESOURCE_SIZE]); |
cc944ead | 4140 | err = devlink_resource_validate_size(resource, size, info->extack); |
d9f9b9a4 AS |
4141 | if (err) |
4142 | return err; | |
4143 | ||
4144 | resource->size_new = size; | |
4145 | devlink_resource_validate_children(resource); | |
4146 | if (resource->parent) | |
4147 | devlink_resource_validate_children(resource->parent); | |
4148 | return 0; | |
4149 | } | |
4150 | ||
3d18e4f1 | 4151 | static int |
d9f9b9a4 AS |
4152 | devlink_resource_size_params_put(struct devlink_resource *resource, |
4153 | struct sk_buff *skb) | |
4154 | { | |
4155 | struct devlink_resource_size_params *size_params; | |
4156 | ||
77d27096 | 4157 | size_params = &resource->size_params; |
3d18e4f1 AS |
4158 | if (nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE_GRAN, |
4159 | size_params->size_granularity, DEVLINK_ATTR_PAD) || | |
4160 | nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE_MAX, | |
4161 | size_params->size_max, DEVLINK_ATTR_PAD) || | |
4162 | nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE_MIN, | |
4163 | size_params->size_min, DEVLINK_ATTR_PAD) || | |
4164 | nla_put_u8(skb, DEVLINK_ATTR_RESOURCE_UNIT, size_params->unit)) | |
4165 | return -EMSGSIZE; | |
4166 | return 0; | |
d9f9b9a4 AS |
4167 | } |
4168 | ||
fc56be47 JP |
4169 | static int devlink_resource_occ_put(struct devlink_resource *resource, |
4170 | struct sk_buff *skb) | |
4171 | { | |
4172 | if (!resource->occ_get) | |
4173 | return 0; | |
4174 | return nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_OCC, | |
4175 | resource->occ_get(resource->occ_get_priv), | |
4176 | DEVLINK_ATTR_PAD); | |
4177 | } | |
4178 | ||
d9f9b9a4 AS |
4179 | static int devlink_resource_put(struct devlink *devlink, struct sk_buff *skb, |
4180 | struct devlink_resource *resource) | |
4181 | { | |
4182 | struct devlink_resource *child_resource; | |
4183 | struct nlattr *child_resource_attr; | |
4184 | struct nlattr *resource_attr; | |
4185 | ||
ae0be8de | 4186 | resource_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_RESOURCE); |
d9f9b9a4 AS |
4187 | if (!resource_attr) |
4188 | return -EMSGSIZE; | |
4189 | ||
4190 | if (nla_put_string(skb, DEVLINK_ATTR_RESOURCE_NAME, resource->name) || | |
4191 | nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE, resource->size, | |
4192 | DEVLINK_ATTR_PAD) || | |
4193 | nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_ID, resource->id, | |
4194 | DEVLINK_ATTR_PAD)) | |
4195 | goto nla_put_failure; | |
4196 | if (resource->size != resource->size_new) | |
4197 | nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE_NEW, | |
4198 | resource->size_new, DEVLINK_ATTR_PAD); | |
fc56be47 JP |
4199 | if (devlink_resource_occ_put(resource, skb)) |
4200 | goto nla_put_failure; | |
3d18e4f1 AS |
4201 | if (devlink_resource_size_params_put(resource, skb)) |
4202 | goto nla_put_failure; | |
d9f9b9a4 AS |
4203 | if (list_empty(&resource->resource_list)) |
4204 | goto out; | |
4205 | ||
4206 | if (nla_put_u8(skb, DEVLINK_ATTR_RESOURCE_SIZE_VALID, | |
4207 | resource->size_valid)) | |
4208 | goto nla_put_failure; | |
4209 | ||
ae0be8de MK |
4210 | child_resource_attr = nla_nest_start_noflag(skb, |
4211 | DEVLINK_ATTR_RESOURCE_LIST); | |
d9f9b9a4 AS |
4212 | if (!child_resource_attr) |
4213 | goto nla_put_failure; | |
4214 | ||
4215 | list_for_each_entry(child_resource, &resource->resource_list, list) { | |
4216 | if (devlink_resource_put(devlink, skb, child_resource)) | |
4217 | goto resource_put_failure; | |
4218 | } | |
4219 | ||
4220 | nla_nest_end(skb, child_resource_attr); | |
4221 | out: | |
4222 | nla_nest_end(skb, resource_attr); | |
4223 | return 0; | |
4224 | ||
4225 | resource_put_failure: | |
4226 | nla_nest_cancel(skb, child_resource_attr); | |
4227 | nla_put_failure: | |
4228 | nla_nest_cancel(skb, resource_attr); | |
4229 | return -EMSGSIZE; | |
4230 | } | |
4231 | ||
4232 | static int devlink_resource_fill(struct genl_info *info, | |
4233 | enum devlink_command cmd, int flags) | |
4234 | { | |
4235 | struct devlink *devlink = info->user_ptr[0]; | |
4236 | struct devlink_resource *resource; | |
4237 | struct nlattr *resources_attr; | |
4238 | struct sk_buff *skb = NULL; | |
4239 | struct nlmsghdr *nlh; | |
4240 | bool incomplete; | |
4241 | void *hdr; | |
4242 | int i; | |
4243 | int err; | |
4244 | ||
4245 | resource = list_first_entry(&devlink->resource_list, | |
4246 | struct devlink_resource, list); | |
4247 | start_again: | |
4248 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); | |
4249 | if (err) | |
4250 | return err; | |
4251 | ||
4252 | hdr = genlmsg_put(skb, info->snd_portid, info->snd_seq, | |
4253 | &devlink_nl_family, NLM_F_MULTI, cmd); | |
4254 | if (!hdr) { | |
4255 | nlmsg_free(skb); | |
4256 | return -EMSGSIZE; | |
4257 | } | |
4258 | ||
4259 | if (devlink_nl_put_handle(skb, devlink)) | |
4260 | goto nla_put_failure; | |
4261 | ||
ae0be8de MK |
4262 | resources_attr = nla_nest_start_noflag(skb, |
4263 | DEVLINK_ATTR_RESOURCE_LIST); | |
d9f9b9a4 AS |
4264 | if (!resources_attr) |
4265 | goto nla_put_failure; | |
4266 | ||
4267 | incomplete = false; | |
4268 | i = 0; | |
4269 | list_for_each_entry_from(resource, &devlink->resource_list, list) { | |
4270 | err = devlink_resource_put(devlink, skb, resource); | |
4271 | if (err) { | |
4272 | if (!i) | |
4273 | goto err_resource_put; | |
4274 | incomplete = true; | |
4275 | break; | |
4276 | } | |
4277 | i++; | |
4278 | } | |
4279 | nla_nest_end(skb, resources_attr); | |
4280 | genlmsg_end(skb, hdr); | |
4281 | if (incomplete) | |
4282 | goto start_again; | |
4283 | send_done: | |
4284 | nlh = nlmsg_put(skb, info->snd_portid, info->snd_seq, | |
4285 | NLMSG_DONE, 0, flags | NLM_F_MULTI); | |
4286 | if (!nlh) { | |
4287 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); | |
4288 | if (err) | |
83fe9a96 | 4289 | return err; |
d9f9b9a4 AS |
4290 | goto send_done; |
4291 | } | |
4292 | return genlmsg_reply(skb, info); | |
4293 | ||
4294 | nla_put_failure: | |
4295 | err = -EMSGSIZE; | |
4296 | err_resource_put: | |
d9f9b9a4 AS |
4297 | nlmsg_free(skb); |
4298 | return err; | |
4299 | } | |
4300 | ||
4301 | static int devlink_nl_cmd_resource_dump(struct sk_buff *skb, | |
4302 | struct genl_info *info) | |
4303 | { | |
4304 | struct devlink *devlink = info->user_ptr[0]; | |
4305 | ||
4306 | if (list_empty(&devlink->resource_list)) | |
4307 | return -EOPNOTSUPP; | |
4308 | ||
4309 | return devlink_resource_fill(info, DEVLINK_CMD_RESOURCE_DUMP, 0); | |
4310 | } | |
4311 | ||
2d8dc5bb AS |
4312 | static int |
4313 | devlink_resources_validate(struct devlink *devlink, | |
4314 | struct devlink_resource *resource, | |
4315 | struct genl_info *info) | |
4316 | { | |
4317 | struct list_head *resource_list; | |
4318 | int err = 0; | |
4319 | ||
4320 | if (resource) | |
4321 | resource_list = &resource->resource_list; | |
4322 | else | |
4323 | resource_list = &devlink->resource_list; | |
4324 | ||
4325 | list_for_each_entry(resource, resource_list, list) { | |
4326 | if (!resource->size_valid) | |
4327 | return -EINVAL; | |
4328 | err = devlink_resources_validate(devlink, resource, info); | |
4329 | if (err) | |
4330 | return err; | |
4331 | } | |
4332 | return err; | |
4333 | } | |
4334 | ||
070c63f2 JP |
4335 | static struct net *devlink_netns_get(struct sk_buff *skb, |
4336 | struct genl_info *info) | |
4337 | { | |
4338 | struct nlattr *netns_pid_attr = info->attrs[DEVLINK_ATTR_NETNS_PID]; | |
4339 | struct nlattr *netns_fd_attr = info->attrs[DEVLINK_ATTR_NETNS_FD]; | |
4340 | struct nlattr *netns_id_attr = info->attrs[DEVLINK_ATTR_NETNS_ID]; | |
4341 | struct net *net; | |
4342 | ||
4343 | if (!!netns_pid_attr + !!netns_fd_attr + !!netns_id_attr > 1) { | |
054eae82 | 4344 | NL_SET_ERR_MSG_MOD(info->extack, "multiple netns identifying attributes specified"); |
070c63f2 JP |
4345 | return ERR_PTR(-EINVAL); |
4346 | } | |
4347 | ||
4348 | if (netns_pid_attr) { | |
4349 | net = get_net_ns_by_pid(nla_get_u32(netns_pid_attr)); | |
4350 | } else if (netns_fd_attr) { | |
4351 | net = get_net_ns_by_fd(nla_get_u32(netns_fd_attr)); | |
4352 | } else if (netns_id_attr) { | |
4353 | net = get_net_ns_by_id(sock_net(skb->sk), | |
4354 | nla_get_u32(netns_id_attr)); | |
4355 | if (!net) | |
4356 | net = ERR_PTR(-EINVAL); | |
4357 | } else { | |
4358 | WARN_ON(1); | |
4359 | net = ERR_PTR(-EINVAL); | |
4360 | } | |
4361 | if (IS_ERR(net)) { | |
054eae82 | 4362 | NL_SET_ERR_MSG_MOD(info->extack, "Unknown network namespace"); |
070c63f2 JP |
4363 | return ERR_PTR(-EINVAL); |
4364 | } | |
4365 | if (!netlink_ns_capable(skb, net->user_ns, CAP_NET_ADMIN)) { | |
4366 | put_net(net); | |
4367 | return ERR_PTR(-EPERM); | |
4368 | } | |
4369 | return net; | |
4370 | } | |
4371 | ||
4372 | static void devlink_param_notify(struct devlink *devlink, | |
4373 | unsigned int port_index, | |
4374 | struct devlink_param_item *param_item, | |
4375 | enum devlink_command cmd); | |
4376 | ||
05a7f4a8 LR |
4377 | static void devlink_ns_change_notify(struct devlink *devlink, |
4378 | struct net *dest_net, struct net *curr_net, | |
4379 | bool new) | |
070c63f2 JP |
4380 | { |
4381 | struct devlink_param_item *param_item; | |
05a7f4a8 | 4382 | enum devlink_command cmd; |
070c63f2 JP |
4383 | |
4384 | /* Userspace needs to be notified about devlink objects | |
4385 | * removed from original and entering new network namespace. | |
4386 | * The rest of the devlink objects are re-created during | |
4387 | * reload process so the notifications are generated separatelly. | |
4388 | */ | |
4389 | ||
05a7f4a8 LR |
4390 | if (!dest_net || net_eq(dest_net, curr_net)) |
4391 | return; | |
070c63f2 | 4392 | |
05a7f4a8 LR |
4393 | if (new) |
4394 | devlink_notify(devlink, DEVLINK_CMD_NEW); | |
070c63f2 | 4395 | |
05a7f4a8 | 4396 | cmd = new ? DEVLINK_CMD_PARAM_NEW : DEVLINK_CMD_PARAM_DEL; |
070c63f2 | 4397 | list_for_each_entry(param_item, &devlink->param_list, list) |
05a7f4a8 LR |
4398 | devlink_param_notify(devlink, 0, param_item, cmd); |
4399 | ||
4400 | if (!new) | |
4401 | devlink_notify(devlink, DEVLINK_CMD_DEL); | |
070c63f2 JP |
4402 | } |
4403 | ||
69d56e0e | 4404 | static bool devlink_reload_supported(const struct devlink_ops *ops) |
97691069 | 4405 | { |
69d56e0e | 4406 | return ops->reload_down && ops->reload_up; |
97691069 JP |
4407 | } |
4408 | ||
2670ac26 JP |
4409 | static void devlink_reload_failed_set(struct devlink *devlink, |
4410 | bool reload_failed) | |
4411 | { | |
4412 | if (devlink->reload_failed == reload_failed) | |
4413 | return; | |
4414 | devlink->reload_failed = reload_failed; | |
4415 | devlink_notify(devlink, DEVLINK_CMD_NEW); | |
4416 | } | |
4417 | ||
4418 | bool devlink_is_reload_failed(const struct devlink *devlink) | |
4419 | { | |
4420 | return devlink->reload_failed; | |
4421 | } | |
4422 | EXPORT_SYMBOL_GPL(devlink_is_reload_failed); | |
4423 | ||
a254c264 MS |
4424 | static void |
4425 | __devlink_reload_stats_update(struct devlink *devlink, u32 *reload_stats, | |
4426 | enum devlink_reload_limit limit, u32 actions_performed) | |
4427 | { | |
4428 | unsigned long actions = actions_performed; | |
4429 | int stat_idx; | |
4430 | int action; | |
4431 | ||
4432 | for_each_set_bit(action, &actions, __DEVLINK_RELOAD_ACTION_MAX) { | |
4433 | stat_idx = limit * __DEVLINK_RELOAD_ACTION_MAX + action; | |
4434 | reload_stats[stat_idx]++; | |
4435 | } | |
4436 | devlink_notify(devlink, DEVLINK_CMD_NEW); | |
4437 | } | |
4438 | ||
4439 | static void | |
4440 | devlink_reload_stats_update(struct devlink *devlink, enum devlink_reload_limit limit, | |
4441 | u32 actions_performed) | |
4442 | { | |
4443 | __devlink_reload_stats_update(devlink, devlink->stats.reload_stats, limit, | |
4444 | actions_performed); | |
4445 | } | |
4446 | ||
77069ba2 MS |
4447 | /** |
4448 | * devlink_remote_reload_actions_performed - Update devlink on reload actions | |
4449 | * performed which are not a direct result of devlink reload call. | |
4450 | * | |
4451 | * This should be called by a driver after performing reload actions in case it was not | |
4452 | * a result of devlink reload call. For example fw_activate was performed as a result | |
4453 | * of devlink reload triggered fw_activate on another host. | |
4454 | * The motivation for this function is to keep data on reload actions performed on this | |
4455 | * function whether it was done due to direct devlink reload call or not. | |
4456 | * | |
4457 | * @devlink: devlink | |
4458 | * @limit: reload limit | |
4459 | * @actions_performed: bitmask of actions performed | |
4460 | */ | |
4461 | void devlink_remote_reload_actions_performed(struct devlink *devlink, | |
4462 | enum devlink_reload_limit limit, | |
4463 | u32 actions_performed) | |
4464 | { | |
4465 | if (WARN_ON(!actions_performed || | |
4466 | actions_performed & BIT(DEVLINK_RELOAD_ACTION_UNSPEC) || | |
4467 | actions_performed >= BIT(__DEVLINK_RELOAD_ACTION_MAX) || | |
4468 | limit > DEVLINK_RELOAD_LIMIT_MAX)) | |
4469 | return; | |
4470 | ||
4471 | __devlink_reload_stats_update(devlink, devlink->stats.remote_reload_stats, limit, | |
4472 | actions_performed); | |
4473 | } | |
4474 | EXPORT_SYMBOL_GPL(devlink_remote_reload_actions_performed); | |
4475 | ||
070c63f2 | 4476 | static int devlink_reload(struct devlink *devlink, struct net *dest_net, |
dc64cc7c MS |
4477 | enum devlink_reload_action action, enum devlink_reload_limit limit, |
4478 | u32 *actions_performed, struct netlink_ext_ack *extack) | |
070c63f2 | 4479 | { |
77069ba2 | 4480 | u32 remote_reload_stats[DEVLINK_RELOAD_STATS_ARRAY_SIZE]; |
05a7f4a8 | 4481 | struct net *curr_net; |
070c63f2 JP |
4482 | int err; |
4483 | ||
77069ba2 MS |
4484 | memcpy(remote_reload_stats, devlink->stats.remote_reload_stats, |
4485 | sizeof(remote_reload_stats)); | |
05a7f4a8 LR |
4486 | |
4487 | curr_net = devlink_net(devlink); | |
4488 | devlink_ns_change_notify(devlink, dest_net, curr_net, false); | |
dc64cc7c | 4489 | err = devlink->ops->reload_down(devlink, !!dest_net, action, limit, extack); |
070c63f2 JP |
4490 | if (err) |
4491 | return err; | |
4492 | ||
05a7f4a8 | 4493 | if (dest_net && !net_eq(dest_net, curr_net)) |
26713455 | 4494 | write_pnet(&devlink->_net, dest_net); |
070c63f2 | 4495 | |
dc64cc7c | 4496 | err = devlink->ops->reload_up(devlink, action, limit, actions_performed, extack); |
070c63f2 | 4497 | devlink_reload_failed_set(devlink, !!err); |
ccdf0721 MS |
4498 | if (err) |
4499 | return err; | |
4500 | ||
05a7f4a8 | 4501 | devlink_ns_change_notify(devlink, dest_net, curr_net, true); |
ccdf0721 | 4502 | WARN_ON(!(*actions_performed & BIT(action))); |
77069ba2 MS |
4503 | /* Catch driver on updating the remote action within devlink reload */ |
4504 | WARN_ON(memcmp(remote_reload_stats, devlink->stats.remote_reload_stats, | |
4505 | sizeof(remote_reload_stats))); | |
a254c264 | 4506 | devlink_reload_stats_update(devlink, limit, *actions_performed); |
ccdf0721 MS |
4507 | return 0; |
4508 | } | |
4509 | ||
4510 | static int | |
4511 | devlink_nl_reload_actions_performed_snd(struct devlink *devlink, u32 actions_performed, | |
4512 | enum devlink_command cmd, struct genl_info *info) | |
4513 | { | |
4514 | struct sk_buff *msg; | |
4515 | void *hdr; | |
4516 | ||
4517 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
4518 | if (!msg) | |
4519 | return -ENOMEM; | |
4520 | ||
4521 | hdr = genlmsg_put(msg, info->snd_portid, info->snd_seq, &devlink_nl_family, 0, cmd); | |
4522 | if (!hdr) | |
4523 | goto free_msg; | |
4524 | ||
4525 | if (devlink_nl_put_handle(msg, devlink)) | |
4526 | goto nla_put_failure; | |
4527 | ||
4528 | if (nla_put_bitfield32(msg, DEVLINK_ATTR_RELOAD_ACTIONS_PERFORMED, actions_performed, | |
4529 | actions_performed)) | |
4530 | goto nla_put_failure; | |
4531 | genlmsg_end(msg, hdr); | |
4532 | ||
4533 | return genlmsg_reply(msg, info); | |
4534 | ||
4535 | nla_put_failure: | |
4536 | genlmsg_cancel(msg, hdr); | |
4537 | free_msg: | |
4538 | nlmsg_free(msg); | |
4539 | return -EMSGSIZE; | |
070c63f2 JP |
4540 | } |
4541 | ||
2d8dc5bb AS |
4542 | static int devlink_nl_cmd_reload(struct sk_buff *skb, struct genl_info *info) |
4543 | { | |
4544 | struct devlink *devlink = info->user_ptr[0]; | |
ccdf0721 | 4545 | enum devlink_reload_action action; |
dc64cc7c | 4546 | enum devlink_reload_limit limit; |
070c63f2 | 4547 | struct net *dest_net = NULL; |
ccdf0721 | 4548 | u32 actions_performed; |
2d8dc5bb AS |
4549 | int err; |
4550 | ||
82465bec | 4551 | if (!(devlink->features & DEVLINK_F_RELOAD)) |
2d8dc5bb AS |
4552 | return -EOPNOTSUPP; |
4553 | ||
4554 | err = devlink_resources_validate(devlink, NULL, info); | |
4555 | if (err) { | |
4556 | NL_SET_ERR_MSG_MOD(info->extack, "resources size validation failed"); | |
4557 | return err; | |
4558 | } | |
070c63f2 | 4559 | |
ccdf0721 MS |
4560 | if (info->attrs[DEVLINK_ATTR_RELOAD_ACTION]) |
4561 | action = nla_get_u8(info->attrs[DEVLINK_ATTR_RELOAD_ACTION]); | |
4562 | else | |
4563 | action = DEVLINK_RELOAD_ACTION_DRIVER_REINIT; | |
4564 | ||
4565 | if (!devlink_reload_action_is_supported(devlink, action)) { | |
4566 | NL_SET_ERR_MSG_MOD(info->extack, | |
4567 | "Requested reload action is not supported by the driver"); | |
4568 | return -EOPNOTSUPP; | |
4569 | } | |
4570 | ||
dc64cc7c MS |
4571 | limit = DEVLINK_RELOAD_LIMIT_UNSPEC; |
4572 | if (info->attrs[DEVLINK_ATTR_RELOAD_LIMITS]) { | |
4573 | struct nla_bitfield32 limits; | |
4574 | u32 limits_selected; | |
4575 | ||
4576 | limits = nla_get_bitfield32(info->attrs[DEVLINK_ATTR_RELOAD_LIMITS]); | |
4577 | limits_selected = limits.value & limits.selector; | |
4578 | if (!limits_selected) { | |
4579 | NL_SET_ERR_MSG_MOD(info->extack, "Invalid limit selected"); | |
4580 | return -EINVAL; | |
4581 | } | |
4582 | for (limit = 0 ; limit <= DEVLINK_RELOAD_LIMIT_MAX ; limit++) | |
4583 | if (limits_selected & BIT(limit)) | |
4584 | break; | |
4585 | /* UAPI enables multiselection, but currently it is not used */ | |
4586 | if (limits_selected != BIT(limit)) { | |
4587 | NL_SET_ERR_MSG_MOD(info->extack, | |
4588 | "Multiselection of limit is not supported"); | |
4589 | return -EOPNOTSUPP; | |
4590 | } | |
4591 | if (!devlink_reload_limit_is_supported(devlink, limit)) { | |
4592 | NL_SET_ERR_MSG_MOD(info->extack, | |
4593 | "Requested limit is not supported by the driver"); | |
4594 | return -EOPNOTSUPP; | |
4595 | } | |
4596 | if (devlink_reload_combination_is_invalid(action, limit)) { | |
4597 | NL_SET_ERR_MSG_MOD(info->extack, | |
4598 | "Requested limit is invalid for this action"); | |
4599 | return -EINVAL; | |
4600 | } | |
4601 | } | |
4dbb0dad ED |
4602 | if (info->attrs[DEVLINK_ATTR_NETNS_PID] || |
4603 | info->attrs[DEVLINK_ATTR_NETNS_FD] || | |
4604 | info->attrs[DEVLINK_ATTR_NETNS_ID]) { | |
4605 | dest_net = devlink_netns_get(skb, info); | |
4606 | if (IS_ERR(dest_net)) | |
4607 | return PTR_ERR(dest_net); | |
4608 | } | |
4609 | ||
dc64cc7c | 4610 | err = devlink_reload(devlink, dest_net, action, limit, &actions_performed, info->extack); |
070c63f2 JP |
4611 | |
4612 | if (dest_net) | |
4613 | put_net(dest_net); | |
4614 | ||
ccdf0721 MS |
4615 | if (err) |
4616 | return err; | |
4617 | /* For backward compatibility generate reply only if attributes used by user */ | |
dc64cc7c | 4618 | if (!info->attrs[DEVLINK_ATTR_RELOAD_ACTION] && !info->attrs[DEVLINK_ATTR_RELOAD_LIMITS]) |
ccdf0721 MS |
4619 | return 0; |
4620 | ||
4621 | return devlink_nl_reload_actions_performed_snd(devlink, actions_performed, | |
4622 | DEVLINK_CMD_RELOAD, info); | |
2d8dc5bb AS |
4623 | } |
4624 | ||
191ed202 JP |
4625 | static int devlink_nl_flash_update_fill(struct sk_buff *msg, |
4626 | struct devlink *devlink, | |
4627 | enum devlink_command cmd, | |
6700acc5 | 4628 | struct devlink_flash_notify *params) |
191ed202 JP |
4629 | { |
4630 | void *hdr; | |
4631 | ||
4632 | hdr = genlmsg_put(msg, 0, 0, &devlink_nl_family, 0, cmd); | |
4633 | if (!hdr) | |
4634 | return -EMSGSIZE; | |
4635 | ||
4636 | if (devlink_nl_put_handle(msg, devlink)) | |
4637 | goto nla_put_failure; | |
4638 | ||
4639 | if (cmd != DEVLINK_CMD_FLASH_UPDATE_STATUS) | |
4640 | goto out; | |
4641 | ||
6700acc5 | 4642 | if (params->status_msg && |
191ed202 | 4643 | nla_put_string(msg, DEVLINK_ATTR_FLASH_UPDATE_STATUS_MSG, |
6700acc5 | 4644 | params->status_msg)) |
191ed202 | 4645 | goto nla_put_failure; |
6700acc5 | 4646 | if (params->component && |
191ed202 | 4647 | nla_put_string(msg, DEVLINK_ATTR_FLASH_UPDATE_COMPONENT, |
6700acc5 | 4648 | params->component)) |
191ed202 JP |
4649 | goto nla_put_failure; |
4650 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_FLASH_UPDATE_STATUS_DONE, | |
6700acc5 | 4651 | params->done, DEVLINK_ATTR_PAD)) |
191ed202 JP |
4652 | goto nla_put_failure; |
4653 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_FLASH_UPDATE_STATUS_TOTAL, | |
6700acc5 | 4654 | params->total, DEVLINK_ATTR_PAD)) |
191ed202 | 4655 | goto nla_put_failure; |
f92970c6 | 4656 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_FLASH_UPDATE_STATUS_TIMEOUT, |
6700acc5 | 4657 | params->timeout, DEVLINK_ATTR_PAD)) |
f92970c6 | 4658 | goto nla_put_failure; |
191ed202 JP |
4659 | |
4660 | out: | |
4661 | genlmsg_end(msg, hdr); | |
4662 | return 0; | |
4663 | ||
4664 | nla_put_failure: | |
4665 | genlmsg_cancel(msg, hdr); | |
4666 | return -EMSGSIZE; | |
4667 | } | |
4668 | ||
4669 | static void __devlink_flash_update_notify(struct devlink *devlink, | |
4670 | enum devlink_command cmd, | |
6700acc5 | 4671 | struct devlink_flash_notify *params) |
191ed202 JP |
4672 | { |
4673 | struct sk_buff *msg; | |
4674 | int err; | |
4675 | ||
4676 | WARN_ON(cmd != DEVLINK_CMD_FLASH_UPDATE && | |
4677 | cmd != DEVLINK_CMD_FLASH_UPDATE_END && | |
4678 | cmd != DEVLINK_CMD_FLASH_UPDATE_STATUS); | |
fec1faf2 LR |
4679 | |
4680 | if (!xa_get_mark(&devlinks, devlink->index, DEVLINK_REGISTERED)) | |
4681 | return; | |
191ed202 JP |
4682 | |
4683 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
4684 | if (!msg) | |
4685 | return; | |
4686 | ||
6700acc5 | 4687 | err = devlink_nl_flash_update_fill(msg, devlink, cmd, params); |
191ed202 JP |
4688 | if (err) |
4689 | goto out_free_msg; | |
4690 | ||
4691 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), | |
4692 | msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
4693 | return; | |
4694 | ||
4695 | out_free_msg: | |
4696 | nlmsg_free(msg); | |
4697 | } | |
4698 | ||
52cc5f3a | 4699 | static void devlink_flash_update_begin_notify(struct devlink *devlink) |
191ed202 | 4700 | { |
ed43fbac | 4701 | struct devlink_flash_notify params = {}; |
6700acc5 | 4702 | |
191ed202 JP |
4703 | __devlink_flash_update_notify(devlink, |
4704 | DEVLINK_CMD_FLASH_UPDATE, | |
6700acc5 | 4705 | ¶ms); |
191ed202 | 4706 | } |
191ed202 | 4707 | |
52cc5f3a | 4708 | static void devlink_flash_update_end_notify(struct devlink *devlink) |
191ed202 | 4709 | { |
ed43fbac | 4710 | struct devlink_flash_notify params = {}; |
6700acc5 | 4711 | |
191ed202 JP |
4712 | __devlink_flash_update_notify(devlink, |
4713 | DEVLINK_CMD_FLASH_UPDATE_END, | |
6700acc5 | 4714 | ¶ms); |
191ed202 | 4715 | } |
191ed202 JP |
4716 | |
4717 | void devlink_flash_update_status_notify(struct devlink *devlink, | |
4718 | const char *status_msg, | |
4719 | const char *component, | |
4720 | unsigned long done, | |
4721 | unsigned long total) | |
4722 | { | |
6700acc5 SN |
4723 | struct devlink_flash_notify params = { |
4724 | .status_msg = status_msg, | |
4725 | .component = component, | |
4726 | .done = done, | |
4727 | .total = total, | |
4728 | }; | |
4729 | ||
191ed202 JP |
4730 | __devlink_flash_update_notify(devlink, |
4731 | DEVLINK_CMD_FLASH_UPDATE_STATUS, | |
6700acc5 | 4732 | ¶ms); |
191ed202 JP |
4733 | } |
4734 | EXPORT_SYMBOL_GPL(devlink_flash_update_status_notify); | |
4735 | ||
f92970c6 SN |
4736 | void devlink_flash_update_timeout_notify(struct devlink *devlink, |
4737 | const char *status_msg, | |
4738 | const char *component, | |
4739 | unsigned long timeout) | |
4740 | { | |
6700acc5 SN |
4741 | struct devlink_flash_notify params = { |
4742 | .status_msg = status_msg, | |
4743 | .component = component, | |
4744 | .timeout = timeout, | |
4745 | }; | |
4746 | ||
f92970c6 SN |
4747 | __devlink_flash_update_notify(devlink, |
4748 | DEVLINK_CMD_FLASH_UPDATE_STATUS, | |
6700acc5 | 4749 | ¶ms); |
f92970c6 SN |
4750 | } |
4751 | EXPORT_SYMBOL_GPL(devlink_flash_update_timeout_notify); | |
4752 | ||
f94b6063 JP |
4753 | struct devlink_info_req { |
4754 | struct sk_buff *msg; | |
4755 | void (*version_cb)(const char *version_name, | |
4756 | enum devlink_info_version_type version_type, | |
4757 | void *version_cb_priv); | |
4758 | void *version_cb_priv; | |
4759 | }; | |
4760 | ||
4761 | struct devlink_flash_component_lookup_ctx { | |
4762 | const char *lookup_name; | |
4763 | bool lookup_name_found; | |
4764 | }; | |
4765 | ||
4766 | static void | |
4767 | devlink_flash_component_lookup_cb(const char *version_name, | |
4768 | enum devlink_info_version_type version_type, | |
4769 | void *version_cb_priv) | |
4770 | { | |
4771 | struct devlink_flash_component_lookup_ctx *lookup_ctx = version_cb_priv; | |
4772 | ||
4773 | if (version_type != DEVLINK_INFO_VERSION_TYPE_COMPONENT || | |
4774 | lookup_ctx->lookup_name_found) | |
4775 | return; | |
4776 | ||
4777 | lookup_ctx->lookup_name_found = | |
4778 | !strcmp(lookup_ctx->lookup_name, version_name); | |
4779 | } | |
4780 | ||
4781 | static int devlink_flash_component_get(struct devlink *devlink, | |
4782 | struct nlattr *nla_component, | |
4783 | const char **p_component, | |
4784 | struct netlink_ext_ack *extack) | |
4785 | { | |
4786 | struct devlink_flash_component_lookup_ctx lookup_ctx = {}; | |
4787 | struct devlink_info_req req = {}; | |
4788 | const char *component; | |
4789 | int ret; | |
4790 | ||
4791 | if (!nla_component) | |
4792 | return 0; | |
4793 | ||
4794 | component = nla_data(nla_component); | |
4795 | ||
4796 | if (!devlink->ops->info_get) { | |
4797 | NL_SET_ERR_MSG_ATTR(extack, nla_component, | |
4798 | "component update is not supported by this device"); | |
4799 | return -EOPNOTSUPP; | |
4800 | } | |
4801 | ||
4802 | lookup_ctx.lookup_name = component; | |
4803 | req.version_cb = devlink_flash_component_lookup_cb; | |
4804 | req.version_cb_priv = &lookup_ctx; | |
4805 | ||
4806 | ret = devlink->ops->info_get(devlink, &req, NULL); | |
4807 | if (ret) | |
4808 | return ret; | |
4809 | ||
4810 | if (!lookup_ctx.lookup_name_found) { | |
4811 | NL_SET_ERR_MSG_ATTR(extack, nla_component, | |
4812 | "selected component is not supported by this device"); | |
4813 | return -EINVAL; | |
4814 | } | |
4815 | *p_component = component; | |
4816 | return 0; | |
4817 | } | |
4818 | ||
76726ccb JK |
4819 | static int devlink_nl_cmd_flash_update(struct sk_buff *skb, |
4820 | struct genl_info *info) | |
4821 | { | |
f94b6063 | 4822 | struct nlattr *nla_overwrite_mask, *nla_file_name; |
bc75c054 | 4823 | struct devlink_flash_update_params params = {}; |
76726ccb | 4824 | struct devlink *devlink = info->user_ptr[0]; |
b44cfd4f | 4825 | const char *file_name; |
22ec3d23 | 4826 | u32 supported_params; |
b44cfd4f | 4827 | int ret; |
76726ccb JK |
4828 | |
4829 | if (!devlink->ops->flash_update) | |
4830 | return -EOPNOTSUPP; | |
4831 | ||
1f7633b5 | 4832 | if (GENL_REQ_ATTR_CHECK(info, DEVLINK_ATTR_FLASH_UPDATE_FILE_NAME)) |
76726ccb | 4833 | return -EINVAL; |
22ec3d23 | 4834 | |
f94b6063 JP |
4835 | ret = devlink_flash_component_get(devlink, |
4836 | info->attrs[DEVLINK_ATTR_FLASH_UPDATE_COMPONENT], | |
4837 | ¶ms.component, info->extack); | |
4838 | if (ret) | |
4839 | return ret; | |
22ec3d23 | 4840 | |
f94b6063 | 4841 | supported_params = devlink->ops->supported_flash_update_params; |
76726ccb | 4842 | |
5d5b4128 JK |
4843 | nla_overwrite_mask = info->attrs[DEVLINK_ATTR_FLASH_UPDATE_OVERWRITE_MASK]; |
4844 | if (nla_overwrite_mask) { | |
4845 | struct nla_bitfield32 sections; | |
4846 | ||
4847 | if (!(supported_params & DEVLINK_SUPPORT_FLASH_UPDATE_OVERWRITE_MASK)) { | |
4848 | NL_SET_ERR_MSG_ATTR(info->extack, nla_overwrite_mask, | |
4849 | "overwrite settings are not supported by this device"); | |
4850 | return -EOPNOTSUPP; | |
4851 | } | |
4852 | sections = nla_get_bitfield32(nla_overwrite_mask); | |
4853 | params.overwrite_mask = sections.value & sections.selector; | |
4854 | } | |
4855 | ||
b44cfd4f JK |
4856 | nla_file_name = info->attrs[DEVLINK_ATTR_FLASH_UPDATE_FILE_NAME]; |
4857 | file_name = nla_data(nla_file_name); | |
4858 | ret = request_firmware(¶ms.fw, file_name, devlink->dev); | |
4859 | if (ret) { | |
4860 | NL_SET_ERR_MSG_ATTR(info->extack, nla_file_name, "failed to locate the requested firmware file"); | |
4861 | return ret; | |
4862 | } | |
4863 | ||
52cc5f3a | 4864 | devlink_flash_update_begin_notify(devlink); |
b44cfd4f | 4865 | ret = devlink->ops->flash_update(devlink, ¶ms, info->extack); |
52cc5f3a | 4866 | devlink_flash_update_end_notify(devlink); |
b44cfd4f JK |
4867 | |
4868 | release_firmware(params.fw); | |
4869 | ||
4870 | return ret; | |
76726ccb JK |
4871 | } |
4872 | ||
08f588fa VG |
4873 | static int |
4874 | devlink_nl_selftests_fill(struct sk_buff *msg, struct devlink *devlink, | |
4875 | u32 portid, u32 seq, int flags, | |
4876 | struct netlink_ext_ack *extack) | |
4877 | { | |
4878 | struct nlattr *selftests; | |
4879 | void *hdr; | |
4880 | int err; | |
4881 | int i; | |
4882 | ||
4883 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, | |
4884 | DEVLINK_CMD_SELFTESTS_GET); | |
4885 | if (!hdr) | |
4886 | return -EMSGSIZE; | |
4887 | ||
4888 | err = -EMSGSIZE; | |
4889 | if (devlink_nl_put_handle(msg, devlink)) | |
4890 | goto err_cancel_msg; | |
4891 | ||
4892 | selftests = nla_nest_start(msg, DEVLINK_ATTR_SELFTESTS); | |
4893 | if (!selftests) | |
4894 | goto err_cancel_msg; | |
4895 | ||
4896 | for (i = DEVLINK_ATTR_SELFTEST_ID_UNSPEC + 1; | |
4897 | i <= DEVLINK_ATTR_SELFTEST_ID_MAX; i++) { | |
4898 | if (devlink->ops->selftest_check(devlink, i, extack)) { | |
4899 | err = nla_put_flag(msg, i); | |
4900 | if (err) | |
4901 | goto err_cancel_msg; | |
4902 | } | |
4903 | } | |
4904 | ||
4905 | nla_nest_end(msg, selftests); | |
4906 | genlmsg_end(msg, hdr); | |
4907 | return 0; | |
4908 | ||
4909 | err_cancel_msg: | |
4910 | genlmsg_cancel(msg, hdr); | |
4911 | return err; | |
4912 | } | |
4913 | ||
4914 | static int devlink_nl_cmd_selftests_get_doit(struct sk_buff *skb, | |
4915 | struct genl_info *info) | |
4916 | { | |
4917 | struct devlink *devlink = info->user_ptr[0]; | |
4918 | struct sk_buff *msg; | |
4919 | int err; | |
4920 | ||
4921 | if (!devlink->ops->selftest_check) | |
4922 | return -EOPNOTSUPP; | |
4923 | ||
4924 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
4925 | if (!msg) | |
4926 | return -ENOMEM; | |
4927 | ||
4928 | err = devlink_nl_selftests_fill(msg, devlink, info->snd_portid, | |
4929 | info->snd_seq, 0, info->extack); | |
4930 | if (err) { | |
4931 | nlmsg_free(msg); | |
4932 | return err; | |
4933 | } | |
4934 | ||
4935 | return genlmsg_reply(msg, info); | |
4936 | } | |
4937 | ||
4938 | static int devlink_nl_cmd_selftests_get_dumpit(struct sk_buff *msg, | |
4939 | struct netlink_callback *cb) | |
4940 | { | |
4941 | struct devlink *devlink; | |
4942 | int start = cb->args[0]; | |
4943 | unsigned long index; | |
4944 | int idx = 0; | |
4945 | int err = 0; | |
4946 | ||
08f588fa VG |
4947 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
4948 | if (idx < start || !devlink->ops->selftest_check) | |
4949 | goto inc; | |
4950 | ||
4951 | devl_lock(devlink); | |
4952 | err = devlink_nl_selftests_fill(msg, devlink, | |
4953 | NETLINK_CB(cb->skb).portid, | |
4954 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
4955 | cb->extack); | |
4956 | devl_unlock(devlink); | |
4957 | if (err) { | |
4958 | devlink_put(devlink); | |
4959 | break; | |
4960 | } | |
4961 | inc: | |
4962 | idx++; | |
4963 | devlink_put(devlink); | |
4964 | } | |
08f588fa VG |
4965 | |
4966 | if (err != -EMSGSIZE) | |
4967 | return err; | |
4968 | ||
4969 | cb->args[0] = idx; | |
4970 | return msg->len; | |
4971 | } | |
4972 | ||
4973 | static int devlink_selftest_result_put(struct sk_buff *skb, unsigned int id, | |
4974 | enum devlink_selftest_status test_status) | |
4975 | { | |
4976 | struct nlattr *result_attr; | |
4977 | ||
4978 | result_attr = nla_nest_start(skb, DEVLINK_ATTR_SELFTEST_RESULT); | |
4979 | if (!result_attr) | |
4980 | return -EMSGSIZE; | |
4981 | ||
4982 | if (nla_put_u32(skb, DEVLINK_ATTR_SELFTEST_RESULT_ID, id) || | |
4983 | nla_put_u8(skb, DEVLINK_ATTR_SELFTEST_RESULT_STATUS, | |
4984 | test_status)) | |
4985 | goto nla_put_failure; | |
4986 | ||
4987 | nla_nest_end(skb, result_attr); | |
4988 | return 0; | |
4989 | ||
4990 | nla_put_failure: | |
4991 | nla_nest_cancel(skb, result_attr); | |
4992 | return -EMSGSIZE; | |
4993 | } | |
4994 | ||
4995 | static int devlink_nl_cmd_selftests_run(struct sk_buff *skb, | |
4996 | struct genl_info *info) | |
4997 | { | |
4998 | struct nlattr *tb[DEVLINK_ATTR_SELFTEST_ID_MAX + 1]; | |
4999 | struct devlink *devlink = info->user_ptr[0]; | |
5000 | struct nlattr *attrs, *selftests; | |
5001 | struct sk_buff *msg; | |
5002 | void *hdr; | |
5003 | int err; | |
5004 | int i; | |
5005 | ||
5006 | if (!devlink->ops->selftest_run || !devlink->ops->selftest_check) | |
5007 | return -EOPNOTSUPP; | |
5008 | ||
1f7633b5 | 5009 | if (GENL_REQ_ATTR_CHECK(info, DEVLINK_ATTR_SELFTESTS)) |
08f588fa | 5010 | return -EINVAL; |
08f588fa VG |
5011 | |
5012 | attrs = info->attrs[DEVLINK_ATTR_SELFTESTS]; | |
5013 | ||
5014 | err = nla_parse_nested(tb, DEVLINK_ATTR_SELFTEST_ID_MAX, attrs, | |
5015 | devlink_selftest_nl_policy, info->extack); | |
5016 | if (err < 0) | |
5017 | return err; | |
5018 | ||
5019 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
5020 | if (!msg) | |
5021 | return -ENOMEM; | |
5022 | ||
5023 | err = -EMSGSIZE; | |
5024 | hdr = genlmsg_put(msg, info->snd_portid, info->snd_seq, | |
5025 | &devlink_nl_family, 0, DEVLINK_CMD_SELFTESTS_RUN); | |
5026 | if (!hdr) | |
5027 | goto free_msg; | |
5028 | ||
5029 | if (devlink_nl_put_handle(msg, devlink)) | |
5030 | goto genlmsg_cancel; | |
5031 | ||
5032 | selftests = nla_nest_start(msg, DEVLINK_ATTR_SELFTESTS); | |
5033 | if (!selftests) | |
5034 | goto genlmsg_cancel; | |
5035 | ||
5036 | for (i = DEVLINK_ATTR_SELFTEST_ID_UNSPEC + 1; | |
5037 | i <= DEVLINK_ATTR_SELFTEST_ID_MAX; i++) { | |
5038 | enum devlink_selftest_status test_status; | |
5039 | ||
5040 | if (nla_get_flag(tb[i])) { | |
5041 | if (!devlink->ops->selftest_check(devlink, i, | |
5042 | info->extack)) { | |
5043 | if (devlink_selftest_result_put(msg, i, | |
5044 | DEVLINK_SELFTEST_STATUS_SKIP)) | |
5045 | goto selftests_nest_cancel; | |
5046 | continue; | |
5047 | } | |
5048 | ||
5049 | test_status = devlink->ops->selftest_run(devlink, i, | |
5050 | info->extack); | |
5051 | if (devlink_selftest_result_put(msg, i, test_status)) | |
5052 | goto selftests_nest_cancel; | |
5053 | } | |
5054 | } | |
5055 | ||
5056 | nla_nest_end(msg, selftests); | |
5057 | genlmsg_end(msg, hdr); | |
5058 | return genlmsg_reply(msg, info); | |
5059 | ||
5060 | selftests_nest_cancel: | |
5061 | nla_nest_cancel(msg, selftests); | |
5062 | genlmsg_cancel: | |
5063 | genlmsg_cancel(msg, hdr); | |
5064 | free_msg: | |
5065 | nlmsg_free(msg); | |
5066 | return err; | |
5067 | } | |
5068 | ||
036467c3 MS |
5069 | static const struct devlink_param devlink_param_generic[] = { |
5070 | { | |
5071 | .id = DEVLINK_PARAM_GENERIC_ID_INT_ERR_RESET, | |
5072 | .name = DEVLINK_PARAM_GENERIC_INT_ERR_RESET_NAME, | |
5073 | .type = DEVLINK_PARAM_GENERIC_INT_ERR_RESET_TYPE, | |
5074 | }, | |
5075 | { | |
5076 | .id = DEVLINK_PARAM_GENERIC_ID_MAX_MACS, | |
5077 | .name = DEVLINK_PARAM_GENERIC_MAX_MACS_NAME, | |
5078 | .type = DEVLINK_PARAM_GENERIC_MAX_MACS_TYPE, | |
5079 | }, | |
f567bcda VV |
5080 | { |
5081 | .id = DEVLINK_PARAM_GENERIC_ID_ENABLE_SRIOV, | |
5082 | .name = DEVLINK_PARAM_GENERIC_ENABLE_SRIOV_NAME, | |
5083 | .type = DEVLINK_PARAM_GENERIC_ENABLE_SRIOV_TYPE, | |
5084 | }, | |
f6a69885 AV |
5085 | { |
5086 | .id = DEVLINK_PARAM_GENERIC_ID_REGION_SNAPSHOT, | |
5087 | .name = DEVLINK_PARAM_GENERIC_REGION_SNAPSHOT_NAME, | |
5088 | .type = DEVLINK_PARAM_GENERIC_REGION_SNAPSHOT_TYPE, | |
5089 | }, | |
e3b51061 VV |
5090 | { |
5091 | .id = DEVLINK_PARAM_GENERIC_ID_IGNORE_ARI, | |
5092 | .name = DEVLINK_PARAM_GENERIC_IGNORE_ARI_NAME, | |
5093 | .type = DEVLINK_PARAM_GENERIC_IGNORE_ARI_TYPE, | |
5094 | }, | |
f61cba42 VV |
5095 | { |
5096 | .id = DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MAX, | |
5097 | .name = DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MAX_NAME, | |
5098 | .type = DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MAX_TYPE, | |
5099 | }, | |
16511789 VV |
5100 | { |
5101 | .id = DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MIN, | |
5102 | .name = DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MIN_NAME, | |
5103 | .type = DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MIN_TYPE, | |
5104 | }, | |
846e980a ST |
5105 | { |
5106 | .id = DEVLINK_PARAM_GENERIC_ID_FW_LOAD_POLICY, | |
5107 | .name = DEVLINK_PARAM_GENERIC_FW_LOAD_POLICY_NAME, | |
5108 | .type = DEVLINK_PARAM_GENERIC_FW_LOAD_POLICY_TYPE, | |
5109 | }, | |
5bbd21df DM |
5110 | { |
5111 | .id = DEVLINK_PARAM_GENERIC_ID_RESET_DEV_ON_DRV_PROBE, | |
5112 | .name = DEVLINK_PARAM_GENERIC_RESET_DEV_ON_DRV_PROBE_NAME, | |
5113 | .type = DEVLINK_PARAM_GENERIC_RESET_DEV_ON_DRV_PROBE_TYPE, | |
5114 | }, | |
6c7295e1 MG |
5115 | { |
5116 | .id = DEVLINK_PARAM_GENERIC_ID_ENABLE_ROCE, | |
5117 | .name = DEVLINK_PARAM_GENERIC_ENABLE_ROCE_NAME, | |
5118 | .type = DEVLINK_PARAM_GENERIC_ENABLE_ROCE_TYPE, | |
5119 | }, | |
195d9dec MS |
5120 | { |
5121 | .id = DEVLINK_PARAM_GENERIC_ID_ENABLE_REMOTE_DEV_RESET, | |
5122 | .name = DEVLINK_PARAM_GENERIC_ENABLE_REMOTE_DEV_RESET_NAME, | |
5123 | .type = DEVLINK_PARAM_GENERIC_ENABLE_REMOTE_DEV_RESET_TYPE, | |
5124 | }, | |
f13a5ad8 PP |
5125 | { |
5126 | .id = DEVLINK_PARAM_GENERIC_ID_ENABLE_ETH, | |
5127 | .name = DEVLINK_PARAM_GENERIC_ENABLE_ETH_NAME, | |
5128 | .type = DEVLINK_PARAM_GENERIC_ENABLE_ETH_TYPE, | |
5129 | }, | |
8ddaabee PP |
5130 | { |
5131 | .id = DEVLINK_PARAM_GENERIC_ID_ENABLE_RDMA, | |
5132 | .name = DEVLINK_PARAM_GENERIC_ENABLE_RDMA_NAME, | |
5133 | .type = DEVLINK_PARAM_GENERIC_ENABLE_RDMA_TYPE, | |
5134 | }, | |
076b2a9d PP |
5135 | { |
5136 | .id = DEVLINK_PARAM_GENERIC_ID_ENABLE_VNET, | |
5137 | .name = DEVLINK_PARAM_GENERIC_ENABLE_VNET_NAME, | |
5138 | .type = DEVLINK_PARAM_GENERIC_ENABLE_VNET_TYPE, | |
5139 | }, | |
325e0d0a SS |
5140 | { |
5141 | .id = DEVLINK_PARAM_GENERIC_ID_ENABLE_IWARP, | |
5142 | .name = DEVLINK_PARAM_GENERIC_ENABLE_IWARP_NAME, | |
5143 | .type = DEVLINK_PARAM_GENERIC_ENABLE_IWARP_TYPE, | |
5144 | }, | |
47402385 SD |
5145 | { |
5146 | .id = DEVLINK_PARAM_GENERIC_ID_IO_EQ_SIZE, | |
5147 | .name = DEVLINK_PARAM_GENERIC_IO_EQ_SIZE_NAME, | |
5148 | .type = DEVLINK_PARAM_GENERIC_IO_EQ_SIZE_TYPE, | |
5149 | }, | |
0b5705eb SD |
5150 | { |
5151 | .id = DEVLINK_PARAM_GENERIC_ID_EVENT_EQ_SIZE, | |
5152 | .name = DEVLINK_PARAM_GENERIC_EVENT_EQ_SIZE_NAME, | |
5153 | .type = DEVLINK_PARAM_GENERIC_EVENT_EQ_SIZE_TYPE, | |
5154 | }, | |
036467c3 | 5155 | }; |
eabaef18 MS |
5156 | |
5157 | static int devlink_param_generic_verify(const struct devlink_param *param) | |
5158 | { | |
5159 | /* verify it match generic parameter by id and name */ | |
5160 | if (param->id > DEVLINK_PARAM_GENERIC_ID_MAX) | |
5161 | return -EINVAL; | |
5162 | if (strcmp(param->name, devlink_param_generic[param->id].name)) | |
5163 | return -ENOENT; | |
5164 | ||
5165 | WARN_ON(param->type != devlink_param_generic[param->id].type); | |
5166 | ||
5167 | return 0; | |
5168 | } | |
5169 | ||
5170 | static int devlink_param_driver_verify(const struct devlink_param *param) | |
5171 | { | |
5172 | int i; | |
5173 | ||
5174 | if (param->id <= DEVLINK_PARAM_GENERIC_ID_MAX) | |
5175 | return -EINVAL; | |
5176 | /* verify no such name in generic params */ | |
5177 | for (i = 0; i <= DEVLINK_PARAM_GENERIC_ID_MAX; i++) | |
5178 | if (!strcmp(param->name, devlink_param_generic[i].name)) | |
5179 | return -EEXIST; | |
5180 | ||
5181 | return 0; | |
5182 | } | |
5183 | ||
5184 | static struct devlink_param_item * | |
5185 | devlink_param_find_by_name(struct list_head *param_list, | |
5186 | const char *param_name) | |
5187 | { | |
5188 | struct devlink_param_item *param_item; | |
5189 | ||
5190 | list_for_each_entry(param_item, param_list, list) | |
5191 | if (!strcmp(param_item->param->name, param_name)) | |
5192 | return param_item; | |
5193 | return NULL; | |
5194 | } | |
5195 | ||
ec01aeb1 MS |
5196 | static struct devlink_param_item * |
5197 | devlink_param_find_by_id(struct list_head *param_list, u32 param_id) | |
5198 | { | |
5199 | struct devlink_param_item *param_item; | |
5200 | ||
5201 | list_for_each_entry(param_item, param_list, list) | |
5202 | if (param_item->param->id == param_id) | |
5203 | return param_item; | |
5204 | return NULL; | |
5205 | } | |
5206 | ||
45f05def MS |
5207 | static bool |
5208 | devlink_param_cmode_is_supported(const struct devlink_param *param, | |
5209 | enum devlink_param_cmode cmode) | |
5210 | { | |
5211 | return test_bit(cmode, ¶m->supported_cmodes); | |
5212 | } | |
5213 | ||
5214 | static int devlink_param_get(struct devlink *devlink, | |
5215 | const struct devlink_param *param, | |
5216 | struct devlink_param_gset_ctx *ctx) | |
5217 | { | |
6b4db2e5 | 5218 | if (!param->get || devlink->reload_failed) |
45f05def MS |
5219 | return -EOPNOTSUPP; |
5220 | return param->get(devlink, param->id, ctx); | |
5221 | } | |
5222 | ||
e3b7ca18 MS |
5223 | static int devlink_param_set(struct devlink *devlink, |
5224 | const struct devlink_param *param, | |
5225 | struct devlink_param_gset_ctx *ctx) | |
5226 | { | |
6b4db2e5 | 5227 | if (!param->set || devlink->reload_failed) |
e3b7ca18 MS |
5228 | return -EOPNOTSUPP; |
5229 | return param->set(devlink, param->id, ctx); | |
5230 | } | |
5231 | ||
45f05def MS |
5232 | static int |
5233 | devlink_param_type_to_nla_type(enum devlink_param_type param_type) | |
5234 | { | |
5235 | switch (param_type) { | |
5236 | case DEVLINK_PARAM_TYPE_U8: | |
5237 | return NLA_U8; | |
5238 | case DEVLINK_PARAM_TYPE_U16: | |
5239 | return NLA_U16; | |
5240 | case DEVLINK_PARAM_TYPE_U32: | |
5241 | return NLA_U32; | |
5242 | case DEVLINK_PARAM_TYPE_STRING: | |
5243 | return NLA_STRING; | |
5244 | case DEVLINK_PARAM_TYPE_BOOL: | |
5245 | return NLA_FLAG; | |
5246 | default: | |
5247 | return -EINVAL; | |
5248 | } | |
5249 | } | |
5250 | ||
5251 | static int | |
5252 | devlink_nl_param_value_fill_one(struct sk_buff *msg, | |
5253 | enum devlink_param_type type, | |
5254 | enum devlink_param_cmode cmode, | |
5255 | union devlink_param_value val) | |
5256 | { | |
5257 | struct nlattr *param_value_attr; | |
5258 | ||
ae0be8de MK |
5259 | param_value_attr = nla_nest_start_noflag(msg, |
5260 | DEVLINK_ATTR_PARAM_VALUE); | |
45f05def MS |
5261 | if (!param_value_attr) |
5262 | goto nla_put_failure; | |
5263 | ||
5264 | if (nla_put_u8(msg, DEVLINK_ATTR_PARAM_VALUE_CMODE, cmode)) | |
5265 | goto value_nest_cancel; | |
5266 | ||
5267 | switch (type) { | |
5268 | case DEVLINK_PARAM_TYPE_U8: | |
5269 | if (nla_put_u8(msg, DEVLINK_ATTR_PARAM_VALUE_DATA, val.vu8)) | |
5270 | goto value_nest_cancel; | |
5271 | break; | |
5272 | case DEVLINK_PARAM_TYPE_U16: | |
5273 | if (nla_put_u16(msg, DEVLINK_ATTR_PARAM_VALUE_DATA, val.vu16)) | |
5274 | goto value_nest_cancel; | |
5275 | break; | |
5276 | case DEVLINK_PARAM_TYPE_U32: | |
5277 | if (nla_put_u32(msg, DEVLINK_ATTR_PARAM_VALUE_DATA, val.vu32)) | |
5278 | goto value_nest_cancel; | |
5279 | break; | |
5280 | case DEVLINK_PARAM_TYPE_STRING: | |
5281 | if (nla_put_string(msg, DEVLINK_ATTR_PARAM_VALUE_DATA, | |
5282 | val.vstr)) | |
5283 | goto value_nest_cancel; | |
5284 | break; | |
5285 | case DEVLINK_PARAM_TYPE_BOOL: | |
5286 | if (val.vbool && | |
5287 | nla_put_flag(msg, DEVLINK_ATTR_PARAM_VALUE_DATA)) | |
5288 | goto value_nest_cancel; | |
5289 | break; | |
5290 | } | |
5291 | ||
5292 | nla_nest_end(msg, param_value_attr); | |
5293 | return 0; | |
5294 | ||
5295 | value_nest_cancel: | |
5296 | nla_nest_cancel(msg, param_value_attr); | |
5297 | nla_put_failure: | |
5298 | return -EMSGSIZE; | |
5299 | } | |
5300 | ||
5301 | static int devlink_nl_param_fill(struct sk_buff *msg, struct devlink *devlink, | |
f4601dee | 5302 | unsigned int port_index, |
45f05def MS |
5303 | struct devlink_param_item *param_item, |
5304 | enum devlink_command cmd, | |
5305 | u32 portid, u32 seq, int flags) | |
5306 | { | |
5307 | union devlink_param_value param_value[DEVLINK_PARAM_CMODE_MAX + 1]; | |
7c62cfb8 | 5308 | bool param_value_set[DEVLINK_PARAM_CMODE_MAX + 1] = {}; |
45f05def MS |
5309 | const struct devlink_param *param = param_item->param; |
5310 | struct devlink_param_gset_ctx ctx; | |
5311 | struct nlattr *param_values_list; | |
5312 | struct nlattr *param_attr; | |
5313 | int nla_type; | |
5314 | void *hdr; | |
5315 | int err; | |
5316 | int i; | |
5317 | ||
5318 | /* Get value from driver part to driverinit configuration mode */ | |
5319 | for (i = 0; i <= DEVLINK_PARAM_CMODE_MAX; i++) { | |
5320 | if (!devlink_param_cmode_is_supported(param, i)) | |
5321 | continue; | |
5322 | if (i == DEVLINK_PARAM_CMODE_DRIVERINIT) { | |
5323 | if (!param_item->driverinit_value_valid) | |
5324 | return -EOPNOTSUPP; | |
5325 | param_value[i] = param_item->driverinit_value; | |
5326 | } else { | |
5327 | ctx.cmode = i; | |
5328 | err = devlink_param_get(devlink, param, &ctx); | |
5329 | if (err) | |
5330 | return err; | |
5331 | param_value[i] = ctx.val; | |
5332 | } | |
7c62cfb8 | 5333 | param_value_set[i] = true; |
45f05def MS |
5334 | } |
5335 | ||
5336 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
5337 | if (!hdr) | |
5338 | return -EMSGSIZE; | |
5339 | ||
5340 | if (devlink_nl_put_handle(msg, devlink)) | |
5341 | goto genlmsg_cancel; | |
f4601dee | 5342 | |
c1e5786d VV |
5343 | if (cmd == DEVLINK_CMD_PORT_PARAM_GET || |
5344 | cmd == DEVLINK_CMD_PORT_PARAM_NEW || | |
5345 | cmd == DEVLINK_CMD_PORT_PARAM_DEL) | |
f4601dee VV |
5346 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, port_index)) |
5347 | goto genlmsg_cancel; | |
5348 | ||
ae0be8de | 5349 | param_attr = nla_nest_start_noflag(msg, DEVLINK_ATTR_PARAM); |
45f05def MS |
5350 | if (!param_attr) |
5351 | goto genlmsg_cancel; | |
5352 | if (nla_put_string(msg, DEVLINK_ATTR_PARAM_NAME, param->name)) | |
5353 | goto param_nest_cancel; | |
5354 | if (param->generic && nla_put_flag(msg, DEVLINK_ATTR_PARAM_GENERIC)) | |
5355 | goto param_nest_cancel; | |
5356 | ||
5357 | nla_type = devlink_param_type_to_nla_type(param->type); | |
5358 | if (nla_type < 0) | |
5359 | goto param_nest_cancel; | |
5360 | if (nla_put_u8(msg, DEVLINK_ATTR_PARAM_TYPE, nla_type)) | |
5361 | goto param_nest_cancel; | |
5362 | ||
ae0be8de MK |
5363 | param_values_list = nla_nest_start_noflag(msg, |
5364 | DEVLINK_ATTR_PARAM_VALUES_LIST); | |
45f05def MS |
5365 | if (!param_values_list) |
5366 | goto param_nest_cancel; | |
5367 | ||
5368 | for (i = 0; i <= DEVLINK_PARAM_CMODE_MAX; i++) { | |
7c62cfb8 | 5369 | if (!param_value_set[i]) |
45f05def MS |
5370 | continue; |
5371 | err = devlink_nl_param_value_fill_one(msg, param->type, | |
5372 | i, param_value[i]); | |
5373 | if (err) | |
5374 | goto values_list_nest_cancel; | |
5375 | } | |
5376 | ||
5377 | nla_nest_end(msg, param_values_list); | |
5378 | nla_nest_end(msg, param_attr); | |
5379 | genlmsg_end(msg, hdr); | |
5380 | return 0; | |
5381 | ||
5382 | values_list_nest_cancel: | |
5383 | nla_nest_end(msg, param_values_list); | |
5384 | param_nest_cancel: | |
5385 | nla_nest_cancel(msg, param_attr); | |
5386 | genlmsg_cancel: | |
5387 | genlmsg_cancel(msg, hdr); | |
5388 | return -EMSGSIZE; | |
5389 | } | |
5390 | ||
ea601e17 | 5391 | static void devlink_param_notify(struct devlink *devlink, |
c1e5786d | 5392 | unsigned int port_index, |
ea601e17 MS |
5393 | struct devlink_param_item *param_item, |
5394 | enum devlink_command cmd) | |
5395 | { | |
5396 | struct sk_buff *msg; | |
5397 | int err; | |
5398 | ||
c1e5786d VV |
5399 | WARN_ON(cmd != DEVLINK_CMD_PARAM_NEW && cmd != DEVLINK_CMD_PARAM_DEL && |
5400 | cmd != DEVLINK_CMD_PORT_PARAM_NEW && | |
5401 | cmd != DEVLINK_CMD_PORT_PARAM_DEL); | |
7a690ad4 | 5402 | ASSERT_DEVLINK_REGISTERED(devlink); |
ea601e17 MS |
5403 | |
5404 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
5405 | if (!msg) | |
5406 | return; | |
c1e5786d VV |
5407 | err = devlink_nl_param_fill(msg, devlink, port_index, param_item, cmd, |
5408 | 0, 0, 0); | |
ea601e17 MS |
5409 | if (err) { |
5410 | nlmsg_free(msg); | |
5411 | return; | |
5412 | } | |
5413 | ||
5414 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), | |
5415 | msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
5416 | } | |
5417 | ||
45f05def MS |
5418 | static int devlink_nl_cmd_param_get_dumpit(struct sk_buff *msg, |
5419 | struct netlink_callback *cb) | |
5420 | { | |
5421 | struct devlink_param_item *param_item; | |
5422 | struct devlink *devlink; | |
5423 | int start = cb->args[0]; | |
11a861d7 | 5424 | unsigned long index; |
45f05def | 5425 | int idx = 0; |
c62c2cfb | 5426 | int err = 0; |
45f05def | 5427 | |
294c4f57 | 5428 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
7715023a | 5429 | devl_lock(devlink); |
45f05def MS |
5430 | list_for_each_entry(param_item, &devlink->param_list, list) { |
5431 | if (idx < start) { | |
5432 | idx++; | |
5433 | continue; | |
5434 | } | |
f4601dee | 5435 | err = devlink_nl_param_fill(msg, devlink, 0, param_item, |
45f05def MS |
5436 | DEVLINK_CMD_PARAM_GET, |
5437 | NETLINK_CB(cb->skb).portid, | |
5438 | cb->nlh->nlmsg_seq, | |
5439 | NLM_F_MULTI); | |
82274d07 JK |
5440 | if (err == -EOPNOTSUPP) { |
5441 | err = 0; | |
5442 | } else if (err) { | |
7715023a | 5443 | devl_unlock(devlink); |
437ebfd9 | 5444 | devlink_put(devlink); |
45f05def MS |
5445 | goto out; |
5446 | } | |
5447 | idx++; | |
5448 | } | |
7715023a | 5449 | devl_unlock(devlink); |
437ebfd9 | 5450 | devlink_put(devlink); |
45f05def MS |
5451 | } |
5452 | out: | |
c62c2cfb JP |
5453 | if (err != -EMSGSIZE) |
5454 | return err; | |
5455 | ||
45f05def MS |
5456 | cb->args[0] = idx; |
5457 | return msg->len; | |
5458 | } | |
5459 | ||
e3b7ca18 MS |
5460 | static int |
5461 | devlink_param_type_get_from_info(struct genl_info *info, | |
5462 | enum devlink_param_type *param_type) | |
5463 | { | |
1f7633b5 | 5464 | if (GENL_REQ_ATTR_CHECK(info, DEVLINK_ATTR_PARAM_TYPE)) |
e3b7ca18 MS |
5465 | return -EINVAL; |
5466 | ||
5467 | switch (nla_get_u8(info->attrs[DEVLINK_ATTR_PARAM_TYPE])) { | |
5468 | case NLA_U8: | |
5469 | *param_type = DEVLINK_PARAM_TYPE_U8; | |
5470 | break; | |
5471 | case NLA_U16: | |
5472 | *param_type = DEVLINK_PARAM_TYPE_U16; | |
5473 | break; | |
5474 | case NLA_U32: | |
5475 | *param_type = DEVLINK_PARAM_TYPE_U32; | |
5476 | break; | |
5477 | case NLA_STRING: | |
5478 | *param_type = DEVLINK_PARAM_TYPE_STRING; | |
5479 | break; | |
5480 | case NLA_FLAG: | |
5481 | *param_type = DEVLINK_PARAM_TYPE_BOOL; | |
5482 | break; | |
5483 | default: | |
5484 | return -EINVAL; | |
5485 | } | |
5486 | ||
5487 | return 0; | |
5488 | } | |
5489 | ||
5490 | static int | |
5491 | devlink_param_value_get_from_info(const struct devlink_param *param, | |
5492 | struct genl_info *info, | |
5493 | union devlink_param_value *value) | |
5494 | { | |
8750939b | 5495 | struct nlattr *param_data; |
f355cfcd MS |
5496 | int len; |
5497 | ||
8750939b JK |
5498 | param_data = info->attrs[DEVLINK_ATTR_PARAM_VALUE_DATA]; |
5499 | ||
5500 | if (param->type != DEVLINK_PARAM_TYPE_BOOL && !param_data) | |
e3b7ca18 MS |
5501 | return -EINVAL; |
5502 | ||
5503 | switch (param->type) { | |
5504 | case DEVLINK_PARAM_TYPE_U8: | |
8750939b JK |
5505 | if (nla_len(param_data) != sizeof(u8)) |
5506 | return -EINVAL; | |
5507 | value->vu8 = nla_get_u8(param_data); | |
e3b7ca18 MS |
5508 | break; |
5509 | case DEVLINK_PARAM_TYPE_U16: | |
8750939b JK |
5510 | if (nla_len(param_data) != sizeof(u16)) |
5511 | return -EINVAL; | |
5512 | value->vu16 = nla_get_u16(param_data); | |
e3b7ca18 MS |
5513 | break; |
5514 | case DEVLINK_PARAM_TYPE_U32: | |
8750939b JK |
5515 | if (nla_len(param_data) != sizeof(u32)) |
5516 | return -EINVAL; | |
5517 | value->vu32 = nla_get_u32(param_data); | |
e3b7ca18 MS |
5518 | break; |
5519 | case DEVLINK_PARAM_TYPE_STRING: | |
8750939b JK |
5520 | len = strnlen(nla_data(param_data), nla_len(param_data)); |
5521 | if (len == nla_len(param_data) || | |
bde74ad1 | 5522 | len >= __DEVLINK_PARAM_MAX_STRING_VALUE) |
e3b7ca18 | 5523 | return -EINVAL; |
8750939b | 5524 | strcpy(value->vstr, nla_data(param_data)); |
e3b7ca18 MS |
5525 | break; |
5526 | case DEVLINK_PARAM_TYPE_BOOL: | |
8750939b JK |
5527 | if (param_data && nla_len(param_data)) |
5528 | return -EINVAL; | |
5529 | value->vbool = nla_get_flag(param_data); | |
e3b7ca18 MS |
5530 | break; |
5531 | } | |
5532 | return 0; | |
5533 | } | |
5534 | ||
45f05def | 5535 | static struct devlink_param_item * |
f4601dee | 5536 | devlink_param_get_from_info(struct list_head *param_list, |
45f05def MS |
5537 | struct genl_info *info) |
5538 | { | |
5539 | char *param_name; | |
5540 | ||
1f7633b5 | 5541 | if (GENL_REQ_ATTR_CHECK(info, DEVLINK_ATTR_PARAM_NAME)) |
45f05def MS |
5542 | return NULL; |
5543 | ||
5544 | param_name = nla_data(info->attrs[DEVLINK_ATTR_PARAM_NAME]); | |
f4601dee | 5545 | return devlink_param_find_by_name(param_list, param_name); |
45f05def MS |
5546 | } |
5547 | ||
5548 | static int devlink_nl_cmd_param_get_doit(struct sk_buff *skb, | |
5549 | struct genl_info *info) | |
5550 | { | |
5551 | struct devlink *devlink = info->user_ptr[0]; | |
5552 | struct devlink_param_item *param_item; | |
5553 | struct sk_buff *msg; | |
5554 | int err; | |
5555 | ||
f4601dee | 5556 | param_item = devlink_param_get_from_info(&devlink->param_list, info); |
45f05def MS |
5557 | if (!param_item) |
5558 | return -EINVAL; | |
5559 | ||
5560 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
5561 | if (!msg) | |
5562 | return -ENOMEM; | |
5563 | ||
f4601dee | 5564 | err = devlink_nl_param_fill(msg, devlink, 0, param_item, |
45f05def MS |
5565 | DEVLINK_CMD_PARAM_GET, |
5566 | info->snd_portid, info->snd_seq, 0); | |
5567 | if (err) { | |
5568 | nlmsg_free(msg); | |
5569 | return err; | |
5570 | } | |
5571 | ||
5572 | return genlmsg_reply(msg, info); | |
5573 | } | |
5574 | ||
9c54873b | 5575 | static int __devlink_nl_cmd_param_set_doit(struct devlink *devlink, |
c1e5786d | 5576 | unsigned int port_index, |
9c54873b VV |
5577 | struct list_head *param_list, |
5578 | struct genl_info *info, | |
5579 | enum devlink_command cmd) | |
e3b7ca18 | 5580 | { |
e3b7ca18 MS |
5581 | enum devlink_param_type param_type; |
5582 | struct devlink_param_gset_ctx ctx; | |
5583 | enum devlink_param_cmode cmode; | |
5584 | struct devlink_param_item *param_item; | |
5585 | const struct devlink_param *param; | |
5586 | union devlink_param_value value; | |
5587 | int err = 0; | |
5588 | ||
9c54873b | 5589 | param_item = devlink_param_get_from_info(param_list, info); |
e3b7ca18 MS |
5590 | if (!param_item) |
5591 | return -EINVAL; | |
5592 | param = param_item->param; | |
5593 | err = devlink_param_type_get_from_info(info, ¶m_type); | |
5594 | if (err) | |
5595 | return err; | |
5596 | if (param_type != param->type) | |
5597 | return -EINVAL; | |
5598 | err = devlink_param_value_get_from_info(param, info, &value); | |
5599 | if (err) | |
5600 | return err; | |
5601 | if (param->validate) { | |
5602 | err = param->validate(devlink, param->id, value, info->extack); | |
5603 | if (err) | |
5604 | return err; | |
5605 | } | |
5606 | ||
1f7633b5 | 5607 | if (GENL_REQ_ATTR_CHECK(info, DEVLINK_ATTR_PARAM_VALUE_CMODE)) |
e3b7ca18 MS |
5608 | return -EINVAL; |
5609 | cmode = nla_get_u8(info->attrs[DEVLINK_ATTR_PARAM_VALUE_CMODE]); | |
5610 | if (!devlink_param_cmode_is_supported(param, cmode)) | |
5611 | return -EOPNOTSUPP; | |
5612 | ||
5613 | if (cmode == DEVLINK_PARAM_CMODE_DRIVERINIT) { | |
1276534c MS |
5614 | if (param->type == DEVLINK_PARAM_TYPE_STRING) |
5615 | strcpy(param_item->driverinit_value.vstr, value.vstr); | |
5616 | else | |
5617 | param_item->driverinit_value = value; | |
e3b7ca18 MS |
5618 | param_item->driverinit_value_valid = true; |
5619 | } else { | |
5620 | if (!param->set) | |
5621 | return -EOPNOTSUPP; | |
5622 | ctx.val = value; | |
5623 | ctx.cmode = cmode; | |
5624 | err = devlink_param_set(devlink, param, &ctx); | |
5625 | if (err) | |
5626 | return err; | |
5627 | } | |
5628 | ||
c1e5786d | 5629 | devlink_param_notify(devlink, port_index, param_item, cmd); |
e3b7ca18 MS |
5630 | return 0; |
5631 | } | |
5632 | ||
9c54873b VV |
5633 | static int devlink_nl_cmd_param_set_doit(struct sk_buff *skb, |
5634 | struct genl_info *info) | |
5635 | { | |
5636 | struct devlink *devlink = info->user_ptr[0]; | |
5637 | ||
c1e5786d | 5638 | return __devlink_nl_cmd_param_set_doit(devlink, 0, &devlink->param_list, |
9c54873b VV |
5639 | info, DEVLINK_CMD_PARAM_NEW); |
5640 | } | |
5641 | ||
f4601dee VV |
5642 | static int devlink_nl_cmd_port_param_get_dumpit(struct sk_buff *msg, |
5643 | struct netlink_callback *cb) | |
5644 | { | |
146ecbac | 5645 | NL_SET_ERR_MSG_MOD(cb->extack, "Port params are not supported"); |
f4601dee VV |
5646 | return msg->len; |
5647 | } | |
5648 | ||
5649 | static int devlink_nl_cmd_port_param_get_doit(struct sk_buff *skb, | |
5650 | struct genl_info *info) | |
5651 | { | |
146ecbac JP |
5652 | NL_SET_ERR_MSG_MOD(info->extack, "Port params are not supported"); |
5653 | return -EINVAL; | |
f4601dee VV |
5654 | } |
5655 | ||
9c54873b VV |
5656 | static int devlink_nl_cmd_port_param_set_doit(struct sk_buff *skb, |
5657 | struct genl_info *info) | |
5658 | { | |
146ecbac JP |
5659 | NL_SET_ERR_MSG_MOD(info->extack, "Port params are not supported"); |
5660 | return -EINVAL; | |
9c54873b VV |
5661 | } |
5662 | ||
a006d467 AV |
5663 | static int devlink_nl_region_snapshot_id_put(struct sk_buff *msg, |
5664 | struct devlink *devlink, | |
5665 | struct devlink_snapshot *snapshot) | |
5666 | { | |
5667 | struct nlattr *snap_attr; | |
5668 | int err; | |
5669 | ||
ae0be8de | 5670 | snap_attr = nla_nest_start_noflag(msg, DEVLINK_ATTR_REGION_SNAPSHOT); |
a006d467 AV |
5671 | if (!snap_attr) |
5672 | return -EINVAL; | |
5673 | ||
5674 | err = nla_put_u32(msg, DEVLINK_ATTR_REGION_SNAPSHOT_ID, snapshot->id); | |
5675 | if (err) | |
5676 | goto nla_put_failure; | |
5677 | ||
5678 | nla_nest_end(msg, snap_attr); | |
5679 | return 0; | |
5680 | ||
5681 | nla_put_failure: | |
5682 | nla_nest_cancel(msg, snap_attr); | |
5683 | return err; | |
5684 | } | |
5685 | ||
5686 | static int devlink_nl_region_snapshots_id_put(struct sk_buff *msg, | |
5687 | struct devlink *devlink, | |
5688 | struct devlink_region *region) | |
5689 | { | |
5690 | struct devlink_snapshot *snapshot; | |
5691 | struct nlattr *snapshots_attr; | |
5692 | int err; | |
5693 | ||
ae0be8de MK |
5694 | snapshots_attr = nla_nest_start_noflag(msg, |
5695 | DEVLINK_ATTR_REGION_SNAPSHOTS); | |
a006d467 AV |
5696 | if (!snapshots_attr) |
5697 | return -EINVAL; | |
5698 | ||
5699 | list_for_each_entry(snapshot, ®ion->snapshot_list, list) { | |
5700 | err = devlink_nl_region_snapshot_id_put(msg, devlink, snapshot); | |
5701 | if (err) | |
5702 | goto nla_put_failure; | |
5703 | } | |
5704 | ||
5705 | nla_nest_end(msg, snapshots_attr); | |
5706 | return 0; | |
5707 | ||
5708 | nla_put_failure: | |
5709 | nla_nest_cancel(msg, snapshots_attr); | |
5710 | return err; | |
5711 | } | |
5712 | ||
d8db7ea5 AV |
5713 | static int devlink_nl_region_fill(struct sk_buff *msg, struct devlink *devlink, |
5714 | enum devlink_command cmd, u32 portid, | |
5715 | u32 seq, int flags, | |
5716 | struct devlink_region *region) | |
5717 | { | |
5718 | void *hdr; | |
5719 | int err; | |
5720 | ||
5721 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
5722 | if (!hdr) | |
5723 | return -EMSGSIZE; | |
5724 | ||
5725 | err = devlink_nl_put_handle(msg, devlink); | |
5726 | if (err) | |
5727 | goto nla_put_failure; | |
5728 | ||
6c211809 DC |
5729 | if (region->port) { |
5730 | err = nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, | |
5731 | region->port->index); | |
5732 | if (err) | |
544e7c33 | 5733 | goto nla_put_failure; |
6c211809 | 5734 | } |
544e7c33 | 5735 | |
e8937681 | 5736 | err = nla_put_string(msg, DEVLINK_ATTR_REGION_NAME, region->ops->name); |
d8db7ea5 AV |
5737 | if (err) |
5738 | goto nla_put_failure; | |
5739 | ||
5740 | err = nla_put_u64_64bit(msg, DEVLINK_ATTR_REGION_SIZE, | |
5741 | region->size, | |
5742 | DEVLINK_ATTR_PAD); | |
5743 | if (err) | |
5744 | goto nla_put_failure; | |
5745 | ||
a70e3f02 JK |
5746 | err = nla_put_u32(msg, DEVLINK_ATTR_REGION_MAX_SNAPSHOTS, |
5747 | region->max_snapshots); | |
5748 | if (err) | |
5749 | goto nla_put_failure; | |
5750 | ||
a006d467 AV |
5751 | err = devlink_nl_region_snapshots_id_put(msg, devlink, region); |
5752 | if (err) | |
5753 | goto nla_put_failure; | |
5754 | ||
d8db7ea5 AV |
5755 | genlmsg_end(msg, hdr); |
5756 | return 0; | |
5757 | ||
5758 | nla_put_failure: | |
5759 | genlmsg_cancel(msg, hdr); | |
5760 | return err; | |
5761 | } | |
5762 | ||
dd86fec7 JK |
5763 | static struct sk_buff * |
5764 | devlink_nl_region_notify_build(struct devlink_region *region, | |
5765 | struct devlink_snapshot *snapshot, | |
5766 | enum devlink_command cmd, u32 portid, u32 seq) | |
866319bb AV |
5767 | { |
5768 | struct devlink *devlink = region->devlink; | |
5769 | struct sk_buff *msg; | |
5770 | void *hdr; | |
5771 | int err; | |
5772 | ||
866319bb AV |
5773 | |
5774 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
5775 | if (!msg) | |
dd86fec7 | 5776 | return ERR_PTR(-ENOMEM); |
866319bb | 5777 | |
dd86fec7 JK |
5778 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, 0, cmd); |
5779 | if (!hdr) { | |
5780 | err = -EMSGSIZE; | |
866319bb | 5781 | goto out_free_msg; |
dd86fec7 | 5782 | } |
866319bb AV |
5783 | |
5784 | err = devlink_nl_put_handle(msg, devlink); | |
5785 | if (err) | |
5786 | goto out_cancel_msg; | |
5787 | ||
6c211809 DC |
5788 | if (region->port) { |
5789 | err = nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, | |
5790 | region->port->index); | |
5791 | if (err) | |
544e7c33 | 5792 | goto out_cancel_msg; |
6c211809 | 5793 | } |
544e7c33 | 5794 | |
866319bb | 5795 | err = nla_put_string(msg, DEVLINK_ATTR_REGION_NAME, |
e8937681 | 5796 | region->ops->name); |
866319bb AV |
5797 | if (err) |
5798 | goto out_cancel_msg; | |
5799 | ||
5800 | if (snapshot) { | |
5801 | err = nla_put_u32(msg, DEVLINK_ATTR_REGION_SNAPSHOT_ID, | |
5802 | snapshot->id); | |
5803 | if (err) | |
5804 | goto out_cancel_msg; | |
5805 | } else { | |
5806 | err = nla_put_u64_64bit(msg, DEVLINK_ATTR_REGION_SIZE, | |
5807 | region->size, DEVLINK_ATTR_PAD); | |
5808 | if (err) | |
5809 | goto out_cancel_msg; | |
5810 | } | |
5811 | genlmsg_end(msg, hdr); | |
5812 | ||
dd86fec7 | 5813 | return msg; |
866319bb AV |
5814 | |
5815 | out_cancel_msg: | |
5816 | genlmsg_cancel(msg, hdr); | |
5817 | out_free_msg: | |
5818 | nlmsg_free(msg); | |
dd86fec7 JK |
5819 | return ERR_PTR(err); |
5820 | } | |
5821 | ||
5822 | static void devlink_nl_region_notify(struct devlink_region *region, | |
5823 | struct devlink_snapshot *snapshot, | |
5824 | enum devlink_command cmd) | |
5825 | { | |
cf530217 | 5826 | struct devlink *devlink = region->devlink; |
dd86fec7 JK |
5827 | struct sk_buff *msg; |
5828 | ||
5829 | WARN_ON(cmd != DEVLINK_CMD_REGION_NEW && cmd != DEVLINK_CMD_REGION_DEL); | |
ef91abfb LR |
5830 | if (!xa_get_mark(&devlinks, devlink->index, DEVLINK_REGISTERED)) |
5831 | return; | |
dd86fec7 JK |
5832 | |
5833 | msg = devlink_nl_region_notify_build(region, snapshot, cmd, 0, 0); | |
5834 | if (IS_ERR(msg)) | |
5835 | return; | |
5836 | ||
cf530217 LR |
5837 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), msg, |
5838 | 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
866319bb AV |
5839 | } |
5840 | ||
12102436 JK |
5841 | /** |
5842 | * __devlink_snapshot_id_increment - Increment number of snapshots using an id | |
5843 | * @devlink: devlink instance | |
5844 | * @id: the snapshot id | |
5845 | * | |
5846 | * Track when a new snapshot begins using an id. Load the count for the | |
5847 | * given id from the snapshot xarray, increment it, and store it back. | |
5848 | * | |
5849 | * Called when a new snapshot is created with the given id. | |
5850 | * | |
5851 | * The id *must* have been previously allocated by | |
5852 | * devlink_region_snapshot_id_get(). | |
5853 | * | |
5854 | * Returns 0 on success, or an error on failure. | |
5855 | */ | |
5856 | static int __devlink_snapshot_id_increment(struct devlink *devlink, u32 id) | |
5857 | { | |
5858 | unsigned long count; | |
5859 | void *p; | |
5502e871 | 5860 | int err; |
12102436 | 5861 | |
5502e871 | 5862 | xa_lock(&devlink->snapshot_ids); |
12102436 | 5863 | p = xa_load(&devlink->snapshot_ids, id); |
5502e871 JP |
5864 | if (WARN_ON(!p)) { |
5865 | err = -EINVAL; | |
5866 | goto unlock; | |
5867 | } | |
12102436 | 5868 | |
5502e871 JP |
5869 | if (WARN_ON(!xa_is_value(p))) { |
5870 | err = -EINVAL; | |
5871 | goto unlock; | |
5872 | } | |
12102436 JK |
5873 | |
5874 | count = xa_to_value(p); | |
5875 | count++; | |
5876 | ||
5502e871 JP |
5877 | err = xa_err(__xa_store(&devlink->snapshot_ids, id, xa_mk_value(count), |
5878 | GFP_ATOMIC)); | |
5879 | unlock: | |
5880 | xa_unlock(&devlink->snapshot_ids); | |
5881 | return err; | |
12102436 JK |
5882 | } |
5883 | ||
5884 | /** | |
5885 | * __devlink_snapshot_id_decrement - Decrease number of snapshots using an id | |
5886 | * @devlink: devlink instance | |
5887 | * @id: the snapshot id | |
5888 | * | |
5889 | * Track when a snapshot is deleted and stops using an id. Load the count | |
5890 | * for the given id from the snapshot xarray, decrement it, and store it | |
5891 | * back. | |
5892 | * | |
5893 | * If the count reaches zero, erase this id from the xarray, freeing it | |
5894 | * up for future re-use by devlink_region_snapshot_id_get(). | |
5895 | * | |
5896 | * Called when a snapshot using the given id is deleted, and when the | |
5897 | * initial allocator of the id is finished using it. | |
5898 | */ | |
5899 | static void __devlink_snapshot_id_decrement(struct devlink *devlink, u32 id) | |
5900 | { | |
5901 | unsigned long count; | |
5902 | void *p; | |
5903 | ||
5502e871 | 5904 | xa_lock(&devlink->snapshot_ids); |
12102436 JK |
5905 | p = xa_load(&devlink->snapshot_ids, id); |
5906 | if (WARN_ON(!p)) | |
5502e871 | 5907 | goto unlock; |
12102436 JK |
5908 | |
5909 | if (WARN_ON(!xa_is_value(p))) | |
5502e871 | 5910 | goto unlock; |
12102436 JK |
5911 | |
5912 | count = xa_to_value(p); | |
5913 | ||
5914 | if (count > 1) { | |
5915 | count--; | |
5502e871 JP |
5916 | __xa_store(&devlink->snapshot_ids, id, xa_mk_value(count), |
5917 | GFP_ATOMIC); | |
12102436 JK |
5918 | } else { |
5919 | /* If this was the last user, we can erase this id */ | |
5502e871 | 5920 | __xa_erase(&devlink->snapshot_ids, id); |
12102436 | 5921 | } |
5502e871 JP |
5922 | unlock: |
5923 | xa_unlock(&devlink->snapshot_ids); | |
12102436 JK |
5924 | } |
5925 | ||
b9a17abf JK |
5926 | /** |
5927 | * __devlink_snapshot_id_insert - Insert a specific snapshot ID | |
5928 | * @devlink: devlink instance | |
5929 | * @id: the snapshot id | |
5930 | * | |
5931 | * Mark the given snapshot id as used by inserting a zero value into the | |
5932 | * snapshot xarray. | |
5933 | * | |
5934 | * This must be called while holding the devlink instance lock. Unlike | |
5935 | * devlink_snapshot_id_get, the initial reference count is zero, not one. | |
5936 | * It is expected that the id will immediately be used before | |
5937 | * releasing the devlink instance lock. | |
5938 | * | |
5939 | * Returns zero on success, or an error code if the snapshot id could not | |
5940 | * be inserted. | |
5941 | */ | |
5942 | static int __devlink_snapshot_id_insert(struct devlink *devlink, u32 id) | |
5943 | { | |
5502e871 | 5944 | int err; |
b9a17abf | 5945 | |
5502e871 JP |
5946 | xa_lock(&devlink->snapshot_ids); |
5947 | if (xa_load(&devlink->snapshot_ids, id)) { | |
5948 | xa_unlock(&devlink->snapshot_ids); | |
b9a17abf | 5949 | return -EEXIST; |
5502e871 JP |
5950 | } |
5951 | err = xa_err(__xa_store(&devlink->snapshot_ids, id, xa_mk_value(0), | |
5952 | GFP_ATOMIC)); | |
5953 | xa_unlock(&devlink->snapshot_ids); | |
5954 | return err; | |
b9a17abf JK |
5955 | } |
5956 | ||
7000108f JK |
5957 | /** |
5958 | * __devlink_region_snapshot_id_get - get snapshot ID | |
5959 | * @devlink: devlink instance | |
7ef19d3b | 5960 | * @id: storage to return snapshot id |
7000108f | 5961 | * |
7ef19d3b JK |
5962 | * Allocates a new snapshot id. Returns zero on success, or a negative |
5963 | * error on failure. Must be called while holding the devlink instance | |
5964 | * lock. | |
12102436 JK |
5965 | * |
5966 | * Snapshot IDs are tracked using an xarray which stores the number of | |
5967 | * users of the snapshot id. | |
5968 | * | |
5969 | * Note that the caller of this function counts as a 'user', in order to | |
5970 | * avoid race conditions. The caller must release its hold on the | |
5971 | * snapshot by using devlink_region_snapshot_id_put. | |
7000108f | 5972 | */ |
7ef19d3b | 5973 | static int __devlink_region_snapshot_id_get(struct devlink *devlink, u32 *id) |
7000108f | 5974 | { |
12102436 JK |
5975 | return xa_alloc(&devlink->snapshot_ids, id, xa_mk_value(1), |
5976 | xa_limit_32b, GFP_KERNEL); | |
7000108f JK |
5977 | } |
5978 | ||
cf80faee JK |
5979 | /** |
5980 | * __devlink_region_snapshot_create - create a new snapshot | |
5981 | * This will add a new snapshot of a region. The snapshot | |
5982 | * will be stored on the region struct and can be accessed | |
5983 | * from devlink. This is useful for future analyses of snapshots. | |
5984 | * Multiple snapshots can be created on a region. | |
5985 | * The @snapshot_id should be obtained using the getter function. | |
5986 | * | |
2dec18ad | 5987 | * Must be called only while holding the region snapshot lock. |
cf80faee JK |
5988 | * |
5989 | * @region: devlink region of the snapshot | |
5990 | * @data: snapshot data | |
5991 | * @snapshot_id: snapshot id to be created | |
5992 | */ | |
5993 | static int | |
5994 | __devlink_region_snapshot_create(struct devlink_region *region, | |
5995 | u8 *data, u32 snapshot_id) | |
5996 | { | |
5997 | struct devlink *devlink = region->devlink; | |
5998 | struct devlink_snapshot *snapshot; | |
12102436 | 5999 | int err; |
cf80faee | 6000 | |
2dec18ad | 6001 | lockdep_assert_held(®ion->snapshot_lock); |
cf80faee JK |
6002 | |
6003 | /* check if region can hold one more snapshot */ | |
6004 | if (region->cur_snapshots == region->max_snapshots) | |
47a39f61 | 6005 | return -ENOSPC; |
cf80faee JK |
6006 | |
6007 | if (devlink_region_snapshot_get_by_id(region, snapshot_id)) | |
6008 | return -EEXIST; | |
6009 | ||
6010 | snapshot = kzalloc(sizeof(*snapshot), GFP_KERNEL); | |
6011 | if (!snapshot) | |
6012 | return -ENOMEM; | |
6013 | ||
12102436 JK |
6014 | err = __devlink_snapshot_id_increment(devlink, snapshot_id); |
6015 | if (err) | |
6016 | goto err_snapshot_id_increment; | |
6017 | ||
cf80faee JK |
6018 | snapshot->id = snapshot_id; |
6019 | snapshot->region = region; | |
6020 | snapshot->data = data; | |
6021 | ||
6022 | list_add_tail(&snapshot->list, ®ion->snapshot_list); | |
6023 | ||
6024 | region->cur_snapshots++; | |
6025 | ||
6026 | devlink_nl_region_notify(region, snapshot, DEVLINK_CMD_REGION_NEW); | |
6027 | return 0; | |
12102436 JK |
6028 | |
6029 | err_snapshot_id_increment: | |
6030 | kfree(snapshot); | |
6031 | return err; | |
cf80faee JK |
6032 | } |
6033 | ||
92b49822 JP |
6034 | static void devlink_region_snapshot_del(struct devlink_region *region, |
6035 | struct devlink_snapshot *snapshot) | |
6036 | { | |
12102436 JK |
6037 | struct devlink *devlink = region->devlink; |
6038 | ||
2dec18ad | 6039 | lockdep_assert_held(®ion->snapshot_lock); |
12102436 | 6040 | |
92b49822 JP |
6041 | devlink_nl_region_notify(region, snapshot, DEVLINK_CMD_REGION_DEL); |
6042 | region->cur_snapshots--; | |
6043 | list_del(&snapshot->list); | |
a0a09f6b | 6044 | region->ops->destructor(snapshot->data); |
12102436 | 6045 | __devlink_snapshot_id_decrement(devlink, snapshot->id); |
92b49822 JP |
6046 | kfree(snapshot); |
6047 | } | |
6048 | ||
d8db7ea5 AV |
6049 | static int devlink_nl_cmd_region_get_doit(struct sk_buff *skb, |
6050 | struct genl_info *info) | |
6051 | { | |
6052 | struct devlink *devlink = info->user_ptr[0]; | |
544e7c33 | 6053 | struct devlink_port *port = NULL; |
d8db7ea5 AV |
6054 | struct devlink_region *region; |
6055 | const char *region_name; | |
6056 | struct sk_buff *msg; | |
544e7c33 | 6057 | unsigned int index; |
d8db7ea5 AV |
6058 | int err; |
6059 | ||
1f7633b5 | 6060 | if (GENL_REQ_ATTR_CHECK(info, DEVLINK_ATTR_REGION_NAME)) |
d8db7ea5 AV |
6061 | return -EINVAL; |
6062 | ||
544e7c33 AL |
6063 | if (info->attrs[DEVLINK_ATTR_PORT_INDEX]) { |
6064 | index = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_INDEX]); | |
6065 | ||
6066 | port = devlink_port_get_by_index(devlink, index); | |
6067 | if (!port) | |
6068 | return -ENODEV; | |
6069 | } | |
6070 | ||
d8db7ea5 | 6071 | region_name = nla_data(info->attrs[DEVLINK_ATTR_REGION_NAME]); |
544e7c33 AL |
6072 | if (port) |
6073 | region = devlink_port_region_get_by_name(port, region_name); | |
6074 | else | |
6075 | region = devlink_region_get_by_name(devlink, region_name); | |
6076 | ||
d8db7ea5 AV |
6077 | if (!region) |
6078 | return -EINVAL; | |
6079 | ||
6080 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
6081 | if (!msg) | |
6082 | return -ENOMEM; | |
6083 | ||
6084 | err = devlink_nl_region_fill(msg, devlink, DEVLINK_CMD_REGION_GET, | |
6085 | info->snd_portid, info->snd_seq, 0, | |
6086 | region); | |
6087 | if (err) { | |
6088 | nlmsg_free(msg); | |
6089 | return err; | |
6090 | } | |
6091 | ||
6092 | return genlmsg_reply(msg, info); | |
6093 | } | |
6094 | ||
544e7c33 AL |
6095 | static int devlink_nl_cmd_region_get_port_dumpit(struct sk_buff *msg, |
6096 | struct netlink_callback *cb, | |
6097 | struct devlink_port *port, | |
6098 | int *idx, | |
6099 | int start) | |
6100 | { | |
6101 | struct devlink_region *region; | |
6102 | int err = 0; | |
6103 | ||
6104 | list_for_each_entry(region, &port->region_list, list) { | |
6105 | if (*idx < start) { | |
6106 | (*idx)++; | |
6107 | continue; | |
6108 | } | |
6109 | err = devlink_nl_region_fill(msg, port->devlink, | |
6110 | DEVLINK_CMD_REGION_GET, | |
6111 | NETLINK_CB(cb->skb).portid, | |
6112 | cb->nlh->nlmsg_seq, | |
6113 | NLM_F_MULTI, region); | |
6114 | if (err) | |
6115 | goto out; | |
6116 | (*idx)++; | |
6117 | } | |
6118 | ||
6119 | out: | |
6120 | return err; | |
6121 | } | |
6122 | ||
6123 | static int devlink_nl_cmd_region_get_devlink_dumpit(struct sk_buff *msg, | |
6124 | struct netlink_callback *cb, | |
6125 | struct devlink *devlink, | |
6126 | int *idx, | |
6127 | int start) | |
6128 | { | |
6129 | struct devlink_region *region; | |
6130 | struct devlink_port *port; | |
6131 | int err = 0; | |
6132 | ||
7715023a | 6133 | devl_lock(devlink); |
544e7c33 AL |
6134 | list_for_each_entry(region, &devlink->region_list, list) { |
6135 | if (*idx < start) { | |
6136 | (*idx)++; | |
6137 | continue; | |
6138 | } | |
6139 | err = devlink_nl_region_fill(msg, devlink, | |
6140 | DEVLINK_CMD_REGION_GET, | |
6141 | NETLINK_CB(cb->skb).portid, | |
6142 | cb->nlh->nlmsg_seq, | |
6143 | NLM_F_MULTI, region); | |
6144 | if (err) | |
6145 | goto out; | |
6146 | (*idx)++; | |
6147 | } | |
6148 | ||
6149 | list_for_each_entry(port, &devlink->port_list, list) { | |
6150 | err = devlink_nl_cmd_region_get_port_dumpit(msg, cb, port, idx, | |
6151 | start); | |
6152 | if (err) | |
6153 | goto out; | |
6154 | } | |
6155 | ||
6156 | out: | |
7715023a | 6157 | devl_unlock(devlink); |
544e7c33 AL |
6158 | return err; |
6159 | } | |
6160 | ||
d8db7ea5 AV |
6161 | static int devlink_nl_cmd_region_get_dumpit(struct sk_buff *msg, |
6162 | struct netlink_callback *cb) | |
6163 | { | |
d8db7ea5 AV |
6164 | struct devlink *devlink; |
6165 | int start = cb->args[0]; | |
11a861d7 | 6166 | unsigned long index; |
d8db7ea5 | 6167 | int idx = 0; |
437ebfd9 | 6168 | int err = 0; |
d8db7ea5 | 6169 | |
294c4f57 | 6170 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
544e7c33 AL |
6171 | err = devlink_nl_cmd_region_get_devlink_dumpit(msg, cb, devlink, |
6172 | &idx, start); | |
437ebfd9 | 6173 | devlink_put(devlink); |
544e7c33 AL |
6174 | if (err) |
6175 | goto out; | |
d8db7ea5 AV |
6176 | } |
6177 | out: | |
d8db7ea5 AV |
6178 | cb->args[0] = idx; |
6179 | return msg->len; | |
6180 | } | |
6181 | ||
866319bb AV |
6182 | static int devlink_nl_cmd_region_del(struct sk_buff *skb, |
6183 | struct genl_info *info) | |
6184 | { | |
6185 | struct devlink *devlink = info->user_ptr[0]; | |
6186 | struct devlink_snapshot *snapshot; | |
544e7c33 | 6187 | struct devlink_port *port = NULL; |
866319bb AV |
6188 | struct devlink_region *region; |
6189 | const char *region_name; | |
544e7c33 | 6190 | unsigned int index; |
866319bb AV |
6191 | u32 snapshot_id; |
6192 | ||
1f7633b5 JK |
6193 | if (GENL_REQ_ATTR_CHECK(info, DEVLINK_ATTR_REGION_NAME) || |
6194 | GENL_REQ_ATTR_CHECK(info, DEVLINK_ATTR_REGION_SNAPSHOT_ID)) | |
866319bb AV |
6195 | return -EINVAL; |
6196 | ||
6197 | region_name = nla_data(info->attrs[DEVLINK_ATTR_REGION_NAME]); | |
6198 | snapshot_id = nla_get_u32(info->attrs[DEVLINK_ATTR_REGION_SNAPSHOT_ID]); | |
6199 | ||
544e7c33 AL |
6200 | if (info->attrs[DEVLINK_ATTR_PORT_INDEX]) { |
6201 | index = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_INDEX]); | |
6202 | ||
6203 | port = devlink_port_get_by_index(devlink, index); | |
6204 | if (!port) | |
6205 | return -ENODEV; | |
6206 | } | |
6207 | ||
6208 | if (port) | |
6209 | region = devlink_port_region_get_by_name(port, region_name); | |
6210 | else | |
6211 | region = devlink_region_get_by_name(devlink, region_name); | |
6212 | ||
866319bb AV |
6213 | if (!region) |
6214 | return -EINVAL; | |
6215 | ||
2dec18ad | 6216 | mutex_lock(®ion->snapshot_lock); |
866319bb | 6217 | snapshot = devlink_region_snapshot_get_by_id(region, snapshot_id); |
2dec18ad JP |
6218 | if (!snapshot) { |
6219 | mutex_unlock(®ion->snapshot_lock); | |
866319bb | 6220 | return -EINVAL; |
2dec18ad | 6221 | } |
866319bb | 6222 | |
92b49822 | 6223 | devlink_region_snapshot_del(region, snapshot); |
2dec18ad | 6224 | mutex_unlock(®ion->snapshot_lock); |
866319bb AV |
6225 | return 0; |
6226 | } | |
6227 | ||
b9a17abf JK |
6228 | static int |
6229 | devlink_nl_cmd_region_new(struct sk_buff *skb, struct genl_info *info) | |
6230 | { | |
6231 | struct devlink *devlink = info->user_ptr[0]; | |
043b3e22 | 6232 | struct devlink_snapshot *snapshot; |
544e7c33 | 6233 | struct devlink_port *port = NULL; |
043b3e22 | 6234 | struct nlattr *snapshot_id_attr; |
b9a17abf JK |
6235 | struct devlink_region *region; |
6236 | const char *region_name; | |
544e7c33 | 6237 | unsigned int index; |
b9a17abf JK |
6238 | u32 snapshot_id; |
6239 | u8 *data; | |
6240 | int err; | |
6241 | ||
1f7633b5 | 6242 | if (GENL_REQ_ATTR_CHECK(info, DEVLINK_ATTR_REGION_NAME)) { |
b9a17abf JK |
6243 | NL_SET_ERR_MSG_MOD(info->extack, "No region name provided"); |
6244 | return -EINVAL; | |
6245 | } | |
6246 | ||
b9a17abf | 6247 | region_name = nla_data(info->attrs[DEVLINK_ATTR_REGION_NAME]); |
544e7c33 AL |
6248 | |
6249 | if (info->attrs[DEVLINK_ATTR_PORT_INDEX]) { | |
6250 | index = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_INDEX]); | |
6251 | ||
6252 | port = devlink_port_get_by_index(devlink, index); | |
6253 | if (!port) | |
6254 | return -ENODEV; | |
6255 | } | |
6256 | ||
6257 | if (port) | |
6258 | region = devlink_port_region_get_by_name(port, region_name); | |
6259 | else | |
6260 | region = devlink_region_get_by_name(devlink, region_name); | |
6261 | ||
b9a17abf JK |
6262 | if (!region) { |
6263 | NL_SET_ERR_MSG_MOD(info->extack, "The requested region does not exist"); | |
6264 | return -EINVAL; | |
6265 | } | |
6266 | ||
6267 | if (!region->ops->snapshot) { | |
6268 | NL_SET_ERR_MSG_MOD(info->extack, "The requested region does not support taking an immediate snapshot"); | |
6269 | return -EOPNOTSUPP; | |
6270 | } | |
6271 | ||
2dec18ad JP |
6272 | mutex_lock(®ion->snapshot_lock); |
6273 | ||
b9a17abf JK |
6274 | if (region->cur_snapshots == region->max_snapshots) { |
6275 | NL_SET_ERR_MSG_MOD(info->extack, "The region has reached the maximum number of stored snapshots"); | |
2dec18ad JP |
6276 | err = -ENOSPC; |
6277 | goto unlock; | |
b9a17abf JK |
6278 | } |
6279 | ||
043b3e22 JK |
6280 | snapshot_id_attr = info->attrs[DEVLINK_ATTR_REGION_SNAPSHOT_ID]; |
6281 | if (snapshot_id_attr) { | |
6282 | snapshot_id = nla_get_u32(snapshot_id_attr); | |
b9a17abf | 6283 | |
043b3e22 JK |
6284 | if (devlink_region_snapshot_get_by_id(region, snapshot_id)) { |
6285 | NL_SET_ERR_MSG_MOD(info->extack, "The requested snapshot id is already in use"); | |
2dec18ad JP |
6286 | err = -EEXIST; |
6287 | goto unlock; | |
043b3e22 | 6288 | } |
b9a17abf | 6289 | |
043b3e22 JK |
6290 | err = __devlink_snapshot_id_insert(devlink, snapshot_id); |
6291 | if (err) | |
2dec18ad | 6292 | goto unlock; |
043b3e22 JK |
6293 | } else { |
6294 | err = __devlink_region_snapshot_id_get(devlink, &snapshot_id); | |
6295 | if (err) { | |
6296 | NL_SET_ERR_MSG_MOD(info->extack, "Failed to allocate a new snapshot id"); | |
2dec18ad | 6297 | goto unlock; |
043b3e22 JK |
6298 | } |
6299 | } | |
b9a17abf | 6300 | |
544e7c33 AL |
6301 | if (port) |
6302 | err = region->port_ops->snapshot(port, region->port_ops, | |
6303 | info->extack, &data); | |
6304 | else | |
6305 | err = region->ops->snapshot(devlink, region->ops, | |
6306 | info->extack, &data); | |
b9a17abf JK |
6307 | if (err) |
6308 | goto err_snapshot_capture; | |
6309 | ||
6310 | err = __devlink_region_snapshot_create(region, data, snapshot_id); | |
6311 | if (err) | |
6312 | goto err_snapshot_create; | |
6313 | ||
043b3e22 JK |
6314 | if (!snapshot_id_attr) { |
6315 | struct sk_buff *msg; | |
6316 | ||
6317 | snapshot = devlink_region_snapshot_get_by_id(region, | |
6318 | snapshot_id); | |
80ef9286 AF |
6319 | if (WARN_ON(!snapshot)) { |
6320 | err = -EINVAL; | |
6321 | goto unlock; | |
6322 | } | |
043b3e22 JK |
6323 | |
6324 | msg = devlink_nl_region_notify_build(region, snapshot, | |
6325 | DEVLINK_CMD_REGION_NEW, | |
6326 | info->snd_portid, | |
6327 | info->snd_seq); | |
6328 | err = PTR_ERR_OR_ZERO(msg); | |
6329 | if (err) | |
6330 | goto err_notify; | |
6331 | ||
6332 | err = genlmsg_reply(msg, info); | |
6333 | if (err) | |
6334 | goto err_notify; | |
6335 | } | |
6336 | ||
2dec18ad | 6337 | mutex_unlock(®ion->snapshot_lock); |
b9a17abf JK |
6338 | return 0; |
6339 | ||
6340 | err_snapshot_create: | |
6341 | region->ops->destructor(data); | |
6342 | err_snapshot_capture: | |
6343 | __devlink_snapshot_id_decrement(devlink, snapshot_id); | |
2dec18ad | 6344 | mutex_unlock(®ion->snapshot_lock); |
b9a17abf | 6345 | return err; |
043b3e22 JK |
6346 | |
6347 | err_notify: | |
6348 | devlink_region_snapshot_del(region, snapshot); | |
2dec18ad JP |
6349 | unlock: |
6350 | mutex_unlock(®ion->snapshot_lock); | |
043b3e22 | 6351 | return err; |
b9a17abf JK |
6352 | } |
6353 | ||
4e54795a AV |
6354 | static int devlink_nl_cmd_region_read_chunk_fill(struct sk_buff *msg, |
6355 | struct devlink *devlink, | |
6356 | u8 *chunk, u32 chunk_size, | |
6357 | u64 addr) | |
6358 | { | |
6359 | struct nlattr *chunk_attr; | |
6360 | int err; | |
6361 | ||
ae0be8de | 6362 | chunk_attr = nla_nest_start_noflag(msg, DEVLINK_ATTR_REGION_CHUNK); |
4e54795a AV |
6363 | if (!chunk_attr) |
6364 | return -EINVAL; | |
6365 | ||
6366 | err = nla_put(msg, DEVLINK_ATTR_REGION_CHUNK_DATA, chunk_size, chunk); | |
6367 | if (err) | |
6368 | goto nla_put_failure; | |
6369 | ||
6370 | err = nla_put_u64_64bit(msg, DEVLINK_ATTR_REGION_CHUNK_ADDR, addr, | |
6371 | DEVLINK_ATTR_PAD); | |
6372 | if (err) | |
6373 | goto nla_put_failure; | |
6374 | ||
6375 | nla_nest_end(msg, chunk_attr); | |
6376 | return 0; | |
6377 | ||
6378 | nla_put_failure: | |
6379 | nla_nest_cancel(msg, chunk_attr); | |
6380 | return err; | |
6381 | } | |
6382 | ||
6383 | #define DEVLINK_REGION_READ_CHUNK_SIZE 256 | |
6384 | ||
6385 | static int devlink_nl_region_read_snapshot_fill(struct sk_buff *skb, | |
6386 | struct devlink *devlink, | |
6387 | struct devlink_region *region, | |
6388 | struct nlattr **attrs, | |
6389 | u64 start_offset, | |
6390 | u64 end_offset, | |
4e54795a AV |
6391 | u64 *new_offset) |
6392 | { | |
6393 | struct devlink_snapshot *snapshot; | |
6394 | u64 curr_offset = start_offset; | |
6395 | u32 snapshot_id; | |
6396 | int err = 0; | |
6397 | ||
6398 | *new_offset = start_offset; | |
6399 | ||
6400 | snapshot_id = nla_get_u32(attrs[DEVLINK_ATTR_REGION_SNAPSHOT_ID]); | |
6401 | snapshot = devlink_region_snapshot_get_by_id(region, snapshot_id); | |
6402 | if (!snapshot) | |
6403 | return -EINVAL; | |
6404 | ||
4e54795a AV |
6405 | while (curr_offset < end_offset) { |
6406 | u32 data_size; | |
6407 | u8 *data; | |
6408 | ||
6409 | if (end_offset - curr_offset < DEVLINK_REGION_READ_CHUNK_SIZE) | |
6410 | data_size = end_offset - curr_offset; | |
6411 | else | |
6412 | data_size = DEVLINK_REGION_READ_CHUNK_SIZE; | |
6413 | ||
6414 | data = &snapshot->data[curr_offset]; | |
6415 | err = devlink_nl_cmd_region_read_chunk_fill(skb, devlink, | |
6416 | data, data_size, | |
6417 | curr_offset); | |
6418 | if (err) | |
6419 | break; | |
6420 | ||
6421 | curr_offset += data_size; | |
6422 | } | |
6423 | *new_offset = curr_offset; | |
6424 | ||
6425 | return err; | |
6426 | } | |
6427 | ||
6428 | static int devlink_nl_cmd_region_read_dumpit(struct sk_buff *skb, | |
6429 | struct netlink_callback *cb) | |
6430 | { | |
ee85da53 | 6431 | const struct genl_dumpit_info *info = genl_dumpit_info(cb); |
5a46b062 | 6432 | u64 ret_offset, start_offset, end_offset = U64_MAX; |
ee85da53 | 6433 | struct nlattr **attrs = info->attrs; |
544e7c33 | 6434 | struct devlink_port *port = NULL; |
4e54795a AV |
6435 | struct devlink_region *region; |
6436 | struct nlattr *chunks_attr; | |
6437 | const char *region_name; | |
6438 | struct devlink *devlink; | |
544e7c33 | 6439 | unsigned int index; |
4e54795a AV |
6440 | void *hdr; |
6441 | int err; | |
6442 | ||
6443 | start_offset = *((u64 *)&cb->args[0]); | |
6444 | ||
4e54795a | 6445 | devlink = devlink_get_from_attrs(sock_net(cb->skb->sk), attrs); |
d3efc2a6 JP |
6446 | if (IS_ERR(devlink)) |
6447 | return PTR_ERR(devlink); | |
4e54795a | 6448 | |
7715023a | 6449 | devl_lock(devlink); |
4e54795a AV |
6450 | |
6451 | if (!attrs[DEVLINK_ATTR_REGION_NAME] || | |
fdd41ec2 PP |
6452 | !attrs[DEVLINK_ATTR_REGION_SNAPSHOT_ID]) { |
6453 | err = -EINVAL; | |
4e54795a | 6454 | goto out_unlock; |
fdd41ec2 | 6455 | } |
4e54795a | 6456 | |
544e7c33 AL |
6457 | if (info->attrs[DEVLINK_ATTR_PORT_INDEX]) { |
6458 | index = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_INDEX]); | |
6459 | ||
6460 | port = devlink_port_get_by_index(devlink, index); | |
0d8cb946 DC |
6461 | if (!port) { |
6462 | err = -ENODEV; | |
6463 | goto out_unlock; | |
6464 | } | |
544e7c33 AL |
6465 | } |
6466 | ||
4e54795a | 6467 | region_name = nla_data(attrs[DEVLINK_ATTR_REGION_NAME]); |
544e7c33 AL |
6468 | |
6469 | if (port) | |
6470 | region = devlink_port_region_get_by_name(port, region_name); | |
6471 | else | |
6472 | region = devlink_region_get_by_name(devlink, region_name); | |
6473 | ||
fdd41ec2 PP |
6474 | if (!region) { |
6475 | err = -EINVAL; | |
4e54795a | 6476 | goto out_unlock; |
fdd41ec2 | 6477 | } |
4e54795a | 6478 | |
5a46b062 JK |
6479 | if (attrs[DEVLINK_ATTR_REGION_CHUNK_ADDR] && |
6480 | attrs[DEVLINK_ATTR_REGION_CHUNK_LEN]) { | |
6481 | if (!start_offset) | |
6482 | start_offset = | |
6483 | nla_get_u64(attrs[DEVLINK_ATTR_REGION_CHUNK_ADDR]); | |
6484 | ||
6485 | end_offset = nla_get_u64(attrs[DEVLINK_ATTR_REGION_CHUNK_ADDR]); | |
6486 | end_offset += nla_get_u64(attrs[DEVLINK_ATTR_REGION_CHUNK_LEN]); | |
6487 | } | |
6488 | ||
6489 | if (end_offset > region->size) | |
6490 | end_offset = region->size; | |
6491 | ||
d5b90e99 | 6492 | /* return 0 if there is no further data to read */ |
5a46b062 | 6493 | if (start_offset == end_offset) { |
d5b90e99 JK |
6494 | err = 0; |
6495 | goto out_unlock; | |
6496 | } | |
6497 | ||
4e54795a AV |
6498 | hdr = genlmsg_put(skb, NETLINK_CB(cb->skb).portid, cb->nlh->nlmsg_seq, |
6499 | &devlink_nl_family, NLM_F_ACK | NLM_F_MULTI, | |
6500 | DEVLINK_CMD_REGION_READ); | |
fdd41ec2 PP |
6501 | if (!hdr) { |
6502 | err = -EMSGSIZE; | |
4e54795a | 6503 | goto out_unlock; |
fdd41ec2 | 6504 | } |
4e54795a AV |
6505 | |
6506 | err = devlink_nl_put_handle(skb, devlink); | |
6507 | if (err) | |
6508 | goto nla_put_failure; | |
6509 | ||
6c211809 DC |
6510 | if (region->port) { |
6511 | err = nla_put_u32(skb, DEVLINK_ATTR_PORT_INDEX, | |
6512 | region->port->index); | |
6513 | if (err) | |
544e7c33 | 6514 | goto nla_put_failure; |
6c211809 | 6515 | } |
544e7c33 | 6516 | |
4e54795a AV |
6517 | err = nla_put_string(skb, DEVLINK_ATTR_REGION_NAME, region_name); |
6518 | if (err) | |
6519 | goto nla_put_failure; | |
6520 | ||
ae0be8de | 6521 | chunks_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_REGION_CHUNKS); |
fdd41ec2 PP |
6522 | if (!chunks_attr) { |
6523 | err = -EMSGSIZE; | |
4e54795a | 6524 | goto nla_put_failure; |
fdd41ec2 | 6525 | } |
4e54795a | 6526 | |
4e54795a AV |
6527 | err = devlink_nl_region_read_snapshot_fill(skb, devlink, |
6528 | region, attrs, | |
6529 | start_offset, | |
5a46b062 | 6530 | end_offset, &ret_offset); |
4e54795a AV |
6531 | |
6532 | if (err && err != -EMSGSIZE) | |
6533 | goto nla_put_failure; | |
6534 | ||
6535 | /* Check if there was any progress done to prevent infinite loop */ | |
fdd41ec2 PP |
6536 | if (ret_offset == start_offset) { |
6537 | err = -EINVAL; | |
4e54795a | 6538 | goto nla_put_failure; |
fdd41ec2 | 6539 | } |
4e54795a AV |
6540 | |
6541 | *((u64 *)&cb->args[0]) = ret_offset; | |
6542 | ||
6543 | nla_nest_end(skb, chunks_attr); | |
6544 | genlmsg_end(skb, hdr); | |
7715023a | 6545 | devl_unlock(devlink); |
437ebfd9 | 6546 | devlink_put(devlink); |
4e54795a AV |
6547 | return skb->len; |
6548 | ||
6549 | nla_put_failure: | |
6550 | genlmsg_cancel(skb, hdr); | |
6551 | out_unlock: | |
7715023a | 6552 | devl_unlock(devlink); |
437ebfd9 | 6553 | devlink_put(devlink); |
fdd41ec2 | 6554 | return err; |
4e54795a AV |
6555 | } |
6556 | ||
f9cf2288 JK |
6557 | int devlink_info_driver_name_put(struct devlink_info_req *req, const char *name) |
6558 | { | |
f94b6063 JP |
6559 | if (!req->msg) |
6560 | return 0; | |
f9cf2288 JK |
6561 | return nla_put_string(req->msg, DEVLINK_ATTR_INFO_DRIVER_NAME, name); |
6562 | } | |
6563 | EXPORT_SYMBOL_GPL(devlink_info_driver_name_put); | |
6564 | ||
6565 | int devlink_info_serial_number_put(struct devlink_info_req *req, const char *sn) | |
6566 | { | |
f94b6063 JP |
6567 | if (!req->msg) |
6568 | return 0; | |
f9cf2288 JK |
6569 | return nla_put_string(req->msg, DEVLINK_ATTR_INFO_SERIAL_NUMBER, sn); |
6570 | } | |
6571 | EXPORT_SYMBOL_GPL(devlink_info_serial_number_put); | |
6572 | ||
b5872cd0 VV |
6573 | int devlink_info_board_serial_number_put(struct devlink_info_req *req, |
6574 | const char *bsn) | |
6575 | { | |
f94b6063 JP |
6576 | if (!req->msg) |
6577 | return 0; | |
b5872cd0 VV |
6578 | return nla_put_string(req->msg, DEVLINK_ATTR_INFO_BOARD_SERIAL_NUMBER, |
6579 | bsn); | |
6580 | } | |
6581 | EXPORT_SYMBOL_GPL(devlink_info_board_serial_number_put); | |
6582 | ||
fc6fae7d JK |
6583 | static int devlink_info_version_put(struct devlink_info_req *req, int attr, |
6584 | const char *version_name, | |
bb670123 JP |
6585 | const char *version_value, |
6586 | enum devlink_info_version_type version_type) | |
fc6fae7d JK |
6587 | { |
6588 | struct nlattr *nest; | |
6589 | int err; | |
6590 | ||
f94b6063 JP |
6591 | if (req->version_cb) |
6592 | req->version_cb(version_name, version_type, | |
6593 | req->version_cb_priv); | |
6594 | ||
6595 | if (!req->msg) | |
6596 | return 0; | |
6597 | ||
ae0be8de | 6598 | nest = nla_nest_start_noflag(req->msg, attr); |
fc6fae7d JK |
6599 | if (!nest) |
6600 | return -EMSGSIZE; | |
6601 | ||
6602 | err = nla_put_string(req->msg, DEVLINK_ATTR_INFO_VERSION_NAME, | |
6603 | version_name); | |
6604 | if (err) | |
6605 | goto nla_put_failure; | |
6606 | ||
6607 | err = nla_put_string(req->msg, DEVLINK_ATTR_INFO_VERSION_VALUE, | |
6608 | version_value); | |
6609 | if (err) | |
6610 | goto nla_put_failure; | |
6611 | ||
6612 | nla_nest_end(req->msg, nest); | |
6613 | ||
6614 | return 0; | |
6615 | ||
6616 | nla_put_failure: | |
6617 | nla_nest_cancel(req->msg, nest); | |
6618 | return err; | |
6619 | } | |
6620 | ||
6621 | int devlink_info_version_fixed_put(struct devlink_info_req *req, | |
6622 | const char *version_name, | |
6623 | const char *version_value) | |
6624 | { | |
6625 | return devlink_info_version_put(req, DEVLINK_ATTR_INFO_VERSION_FIXED, | |
bb670123 JP |
6626 | version_name, version_value, |
6627 | DEVLINK_INFO_VERSION_TYPE_NONE); | |
fc6fae7d JK |
6628 | } |
6629 | EXPORT_SYMBOL_GPL(devlink_info_version_fixed_put); | |
6630 | ||
6631 | int devlink_info_version_stored_put(struct devlink_info_req *req, | |
6632 | const char *version_name, | |
6633 | const char *version_value) | |
6634 | { | |
6635 | return devlink_info_version_put(req, DEVLINK_ATTR_INFO_VERSION_STORED, | |
bb670123 JP |
6636 | version_name, version_value, |
6637 | DEVLINK_INFO_VERSION_TYPE_NONE); | |
fc6fae7d JK |
6638 | } |
6639 | EXPORT_SYMBOL_GPL(devlink_info_version_stored_put); | |
6640 | ||
bb670123 JP |
6641 | int devlink_info_version_stored_put_ext(struct devlink_info_req *req, |
6642 | const char *version_name, | |
6643 | const char *version_value, | |
6644 | enum devlink_info_version_type version_type) | |
6645 | { | |
6646 | return devlink_info_version_put(req, DEVLINK_ATTR_INFO_VERSION_STORED, | |
6647 | version_name, version_value, | |
6648 | version_type); | |
6649 | } | |
6650 | EXPORT_SYMBOL_GPL(devlink_info_version_stored_put_ext); | |
6651 | ||
fc6fae7d JK |
6652 | int devlink_info_version_running_put(struct devlink_info_req *req, |
6653 | const char *version_name, | |
6654 | const char *version_value) | |
6655 | { | |
6656 | return devlink_info_version_put(req, DEVLINK_ATTR_INFO_VERSION_RUNNING, | |
bb670123 JP |
6657 | version_name, version_value, |
6658 | DEVLINK_INFO_VERSION_TYPE_NONE); | |
fc6fae7d JK |
6659 | } |
6660 | EXPORT_SYMBOL_GPL(devlink_info_version_running_put); | |
6661 | ||
bb670123 JP |
6662 | int devlink_info_version_running_put_ext(struct devlink_info_req *req, |
6663 | const char *version_name, | |
6664 | const char *version_value, | |
6665 | enum devlink_info_version_type version_type) | |
6666 | { | |
6667 | return devlink_info_version_put(req, DEVLINK_ATTR_INFO_VERSION_RUNNING, | |
6668 | version_name, version_value, | |
6669 | version_type); | |
6670 | } | |
6671 | EXPORT_SYMBOL_GPL(devlink_info_version_running_put_ext); | |
6672 | ||
f9cf2288 JK |
6673 | static int |
6674 | devlink_nl_info_fill(struct sk_buff *msg, struct devlink *devlink, | |
6675 | enum devlink_command cmd, u32 portid, | |
6676 | u32 seq, int flags, struct netlink_ext_ack *extack) | |
6677 | { | |
f94b6063 | 6678 | struct devlink_info_req req = {}; |
f9cf2288 JK |
6679 | void *hdr; |
6680 | int err; | |
6681 | ||
6682 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
6683 | if (!hdr) | |
6684 | return -EMSGSIZE; | |
6685 | ||
6686 | err = -EMSGSIZE; | |
6687 | if (devlink_nl_put_handle(msg, devlink)) | |
6688 | goto err_cancel_msg; | |
6689 | ||
6690 | req.msg = msg; | |
6691 | err = devlink->ops->info_get(devlink, &req, extack); | |
6692 | if (err) | |
6693 | goto err_cancel_msg; | |
6694 | ||
6695 | genlmsg_end(msg, hdr); | |
6696 | return 0; | |
6697 | ||
6698 | err_cancel_msg: | |
6699 | genlmsg_cancel(msg, hdr); | |
6700 | return err; | |
6701 | } | |
6702 | ||
6703 | static int devlink_nl_cmd_info_get_doit(struct sk_buff *skb, | |
6704 | struct genl_info *info) | |
6705 | { | |
6706 | struct devlink *devlink = info->user_ptr[0]; | |
6707 | struct sk_buff *msg; | |
6708 | int err; | |
6709 | ||
be6fe1d8 | 6710 | if (!devlink->ops->info_get) |
f9cf2288 JK |
6711 | return -EOPNOTSUPP; |
6712 | ||
6713 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
6714 | if (!msg) | |
6715 | return -ENOMEM; | |
6716 | ||
6717 | err = devlink_nl_info_fill(msg, devlink, DEVLINK_CMD_INFO_GET, | |
6718 | info->snd_portid, info->snd_seq, 0, | |
6719 | info->extack); | |
6720 | if (err) { | |
6721 | nlmsg_free(msg); | |
6722 | return err; | |
6723 | } | |
6724 | ||
6725 | return genlmsg_reply(msg, info); | |
6726 | } | |
6727 | ||
6728 | static int devlink_nl_cmd_info_get_dumpit(struct sk_buff *msg, | |
6729 | struct netlink_callback *cb) | |
6730 | { | |
6731 | struct devlink *devlink; | |
6732 | int start = cb->args[0]; | |
11a861d7 | 6733 | unsigned long index; |
f9cf2288 | 6734 | int idx = 0; |
c62c2cfb | 6735 | int err = 0; |
f9cf2288 | 6736 | |
294c4f57 | 6737 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
437ebfd9 LR |
6738 | if (idx < start || !devlink->ops->info_get) |
6739 | goto inc; | |
c493b09b | 6740 | |
7715023a | 6741 | devl_lock(devlink); |
f9cf2288 JK |
6742 | err = devlink_nl_info_fill(msg, devlink, DEVLINK_CMD_INFO_GET, |
6743 | NETLINK_CB(cb->skb).portid, | |
6744 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
6745 | cb->extack); | |
7715023a | 6746 | devl_unlock(devlink); |
82274d07 JK |
6747 | if (err == -EOPNOTSUPP) |
6748 | err = 0; | |
437ebfd9 LR |
6749 | else if (err) { |
6750 | devlink_put(devlink); | |
f9cf2288 | 6751 | break; |
437ebfd9 LR |
6752 | } |
6753 | inc: | |
f9cf2288 | 6754 | idx++; |
437ebfd9 | 6755 | devlink_put(devlink); |
f9cf2288 | 6756 | } |
f9cf2288 | 6757 | |
c62c2cfb JP |
6758 | if (err != -EMSGSIZE) |
6759 | return err; | |
6760 | ||
f9cf2288 JK |
6761 | cb->args[0] = idx; |
6762 | return msg->len; | |
6763 | } | |
6764 | ||
1db64e87 EBE |
6765 | struct devlink_fmsg_item { |
6766 | struct list_head list; | |
6767 | int attrtype; | |
6768 | u8 nla_type; | |
6769 | u16 len; | |
d2afb41a | 6770 | int value[]; |
1db64e87 EBE |
6771 | }; |
6772 | ||
6773 | struct devlink_fmsg { | |
6774 | struct list_head item_list; | |
573ed90a AL |
6775 | bool putting_binary; /* This flag forces enclosing of binary data |
6776 | * in an array brackets. It forces using | |
6777 | * of designated API: | |
6778 | * devlink_fmsg_binary_pair_nest_start() | |
6779 | * devlink_fmsg_binary_pair_nest_end() | |
6780 | */ | |
1db64e87 EBE |
6781 | }; |
6782 | ||
6783 | static struct devlink_fmsg *devlink_fmsg_alloc(void) | |
6784 | { | |
6785 | struct devlink_fmsg *fmsg; | |
6786 | ||
6787 | fmsg = kzalloc(sizeof(*fmsg), GFP_KERNEL); | |
6788 | if (!fmsg) | |
6789 | return NULL; | |
6790 | ||
6791 | INIT_LIST_HEAD(&fmsg->item_list); | |
6792 | ||
6793 | return fmsg; | |
6794 | } | |
6795 | ||
6796 | static void devlink_fmsg_free(struct devlink_fmsg *fmsg) | |
6797 | { | |
6798 | struct devlink_fmsg_item *item, *tmp; | |
6799 | ||
6800 | list_for_each_entry_safe(item, tmp, &fmsg->item_list, list) { | |
6801 | list_del(&item->list); | |
6802 | kfree(item); | |
6803 | } | |
6804 | kfree(fmsg); | |
6805 | } | |
6806 | ||
6807 | static int devlink_fmsg_nest_common(struct devlink_fmsg *fmsg, | |
6808 | int attrtype) | |
6809 | { | |
6810 | struct devlink_fmsg_item *item; | |
6811 | ||
6812 | item = kzalloc(sizeof(*item), GFP_KERNEL); | |
6813 | if (!item) | |
6814 | return -ENOMEM; | |
6815 | ||
6816 | item->attrtype = attrtype; | |
6817 | list_add_tail(&item->list, &fmsg->item_list); | |
6818 | ||
6819 | return 0; | |
6820 | } | |
6821 | ||
6822 | int devlink_fmsg_obj_nest_start(struct devlink_fmsg *fmsg) | |
6823 | { | |
573ed90a AL |
6824 | if (fmsg->putting_binary) |
6825 | return -EINVAL; | |
6826 | ||
1db64e87 EBE |
6827 | return devlink_fmsg_nest_common(fmsg, DEVLINK_ATTR_FMSG_OBJ_NEST_START); |
6828 | } | |
6829 | EXPORT_SYMBOL_GPL(devlink_fmsg_obj_nest_start); | |
6830 | ||
6831 | static int devlink_fmsg_nest_end(struct devlink_fmsg *fmsg) | |
6832 | { | |
573ed90a AL |
6833 | if (fmsg->putting_binary) |
6834 | return -EINVAL; | |
6835 | ||
1db64e87 EBE |
6836 | return devlink_fmsg_nest_common(fmsg, DEVLINK_ATTR_FMSG_NEST_END); |
6837 | } | |
6838 | ||
6839 | int devlink_fmsg_obj_nest_end(struct devlink_fmsg *fmsg) | |
6840 | { | |
573ed90a AL |
6841 | if (fmsg->putting_binary) |
6842 | return -EINVAL; | |
6843 | ||
1db64e87 EBE |
6844 | return devlink_fmsg_nest_end(fmsg); |
6845 | } | |
6846 | EXPORT_SYMBOL_GPL(devlink_fmsg_obj_nest_end); | |
6847 | ||
6848 | #define DEVLINK_FMSG_MAX_SIZE (GENLMSG_DEFAULT_SIZE - GENL_HDRLEN - NLA_HDRLEN) | |
6849 | ||
6850 | static int devlink_fmsg_put_name(struct devlink_fmsg *fmsg, const char *name) | |
6851 | { | |
6852 | struct devlink_fmsg_item *item; | |
6853 | ||
573ed90a AL |
6854 | if (fmsg->putting_binary) |
6855 | return -EINVAL; | |
6856 | ||
1db64e87 EBE |
6857 | if (strlen(name) + 1 > DEVLINK_FMSG_MAX_SIZE) |
6858 | return -EMSGSIZE; | |
6859 | ||
6860 | item = kzalloc(sizeof(*item) + strlen(name) + 1, GFP_KERNEL); | |
6861 | if (!item) | |
6862 | return -ENOMEM; | |
6863 | ||
6864 | item->nla_type = NLA_NUL_STRING; | |
6865 | item->len = strlen(name) + 1; | |
6866 | item->attrtype = DEVLINK_ATTR_FMSG_OBJ_NAME; | |
6867 | memcpy(&item->value, name, item->len); | |
6868 | list_add_tail(&item->list, &fmsg->item_list); | |
6869 | ||
6870 | return 0; | |
6871 | } | |
6872 | ||
6873 | int devlink_fmsg_pair_nest_start(struct devlink_fmsg *fmsg, const char *name) | |
6874 | { | |
6875 | int err; | |
6876 | ||
573ed90a AL |
6877 | if (fmsg->putting_binary) |
6878 | return -EINVAL; | |
6879 | ||
1db64e87 EBE |
6880 | err = devlink_fmsg_nest_common(fmsg, DEVLINK_ATTR_FMSG_PAIR_NEST_START); |
6881 | if (err) | |
6882 | return err; | |
6883 | ||
6884 | err = devlink_fmsg_put_name(fmsg, name); | |
6885 | if (err) | |
6886 | return err; | |
6887 | ||
6888 | return 0; | |
6889 | } | |
6890 | EXPORT_SYMBOL_GPL(devlink_fmsg_pair_nest_start); | |
6891 | ||
6892 | int devlink_fmsg_pair_nest_end(struct devlink_fmsg *fmsg) | |
6893 | { | |
573ed90a AL |
6894 | if (fmsg->putting_binary) |
6895 | return -EINVAL; | |
6896 | ||
1db64e87 EBE |
6897 | return devlink_fmsg_nest_end(fmsg); |
6898 | } | |
6899 | EXPORT_SYMBOL_GPL(devlink_fmsg_pair_nest_end); | |
6900 | ||
6901 | int devlink_fmsg_arr_pair_nest_start(struct devlink_fmsg *fmsg, | |
6902 | const char *name) | |
6903 | { | |
6904 | int err; | |
6905 | ||
573ed90a AL |
6906 | if (fmsg->putting_binary) |
6907 | return -EINVAL; | |
6908 | ||
1db64e87 EBE |
6909 | err = devlink_fmsg_pair_nest_start(fmsg, name); |
6910 | if (err) | |
6911 | return err; | |
6912 | ||
6913 | err = devlink_fmsg_nest_common(fmsg, DEVLINK_ATTR_FMSG_ARR_NEST_START); | |
6914 | if (err) | |
6915 | return err; | |
6916 | ||
6917 | return 0; | |
6918 | } | |
6919 | EXPORT_SYMBOL_GPL(devlink_fmsg_arr_pair_nest_start); | |
6920 | ||
6921 | int devlink_fmsg_arr_pair_nest_end(struct devlink_fmsg *fmsg) | |
6922 | { | |
6923 | int err; | |
6924 | ||
573ed90a AL |
6925 | if (fmsg->putting_binary) |
6926 | return -EINVAL; | |
6927 | ||
1db64e87 EBE |
6928 | err = devlink_fmsg_nest_end(fmsg); |
6929 | if (err) | |
6930 | return err; | |
6931 | ||
6932 | err = devlink_fmsg_nest_end(fmsg); | |
6933 | if (err) | |
6934 | return err; | |
6935 | ||
6936 | return 0; | |
6937 | } | |
6938 | EXPORT_SYMBOL_GPL(devlink_fmsg_arr_pair_nest_end); | |
6939 | ||
573ed90a AL |
6940 | int devlink_fmsg_binary_pair_nest_start(struct devlink_fmsg *fmsg, |
6941 | const char *name) | |
6942 | { | |
6943 | int err; | |
6944 | ||
6945 | err = devlink_fmsg_arr_pair_nest_start(fmsg, name); | |
6946 | if (err) | |
6947 | return err; | |
6948 | ||
6949 | fmsg->putting_binary = true; | |
6950 | return err; | |
6951 | } | |
6952 | EXPORT_SYMBOL_GPL(devlink_fmsg_binary_pair_nest_start); | |
6953 | ||
6954 | int devlink_fmsg_binary_pair_nest_end(struct devlink_fmsg *fmsg) | |
6955 | { | |
6956 | if (!fmsg->putting_binary) | |
6957 | return -EINVAL; | |
6958 | ||
6959 | fmsg->putting_binary = false; | |
6960 | return devlink_fmsg_arr_pair_nest_end(fmsg); | |
6961 | } | |
6962 | EXPORT_SYMBOL_GPL(devlink_fmsg_binary_pair_nest_end); | |
6963 | ||
1db64e87 EBE |
6964 | static int devlink_fmsg_put_value(struct devlink_fmsg *fmsg, |
6965 | const void *value, u16 value_len, | |
6966 | u8 value_nla_type) | |
6967 | { | |
6968 | struct devlink_fmsg_item *item; | |
6969 | ||
6970 | if (value_len > DEVLINK_FMSG_MAX_SIZE) | |
6971 | return -EMSGSIZE; | |
6972 | ||
6973 | item = kzalloc(sizeof(*item) + value_len, GFP_KERNEL); | |
6974 | if (!item) | |
6975 | return -ENOMEM; | |
6976 | ||
6977 | item->nla_type = value_nla_type; | |
6978 | item->len = value_len; | |
6979 | item->attrtype = DEVLINK_ATTR_FMSG_OBJ_VALUE_DATA; | |
6980 | memcpy(&item->value, value, item->len); | |
6981 | list_add_tail(&item->list, &fmsg->item_list); | |
6982 | ||
6983 | return 0; | |
6984 | } | |
6985 | ||
6db9350a | 6986 | static int devlink_fmsg_bool_put(struct devlink_fmsg *fmsg, bool value) |
1db64e87 | 6987 | { |
573ed90a AL |
6988 | if (fmsg->putting_binary) |
6989 | return -EINVAL; | |
6990 | ||
1db64e87 EBE |
6991 | return devlink_fmsg_put_value(fmsg, &value, sizeof(value), NLA_FLAG); |
6992 | } | |
1db64e87 | 6993 | |
6db9350a | 6994 | static int devlink_fmsg_u8_put(struct devlink_fmsg *fmsg, u8 value) |
1db64e87 | 6995 | { |
573ed90a AL |
6996 | if (fmsg->putting_binary) |
6997 | return -EINVAL; | |
6998 | ||
1db64e87 EBE |
6999 | return devlink_fmsg_put_value(fmsg, &value, sizeof(value), NLA_U8); |
7000 | } | |
1db64e87 EBE |
7001 | |
7002 | int devlink_fmsg_u32_put(struct devlink_fmsg *fmsg, u32 value) | |
7003 | { | |
573ed90a AL |
7004 | if (fmsg->putting_binary) |
7005 | return -EINVAL; | |
7006 | ||
1db64e87 EBE |
7007 | return devlink_fmsg_put_value(fmsg, &value, sizeof(value), NLA_U32); |
7008 | } | |
7009 | EXPORT_SYMBOL_GPL(devlink_fmsg_u32_put); | |
7010 | ||
6db9350a | 7011 | static int devlink_fmsg_u64_put(struct devlink_fmsg *fmsg, u64 value) |
1db64e87 | 7012 | { |
573ed90a AL |
7013 | if (fmsg->putting_binary) |
7014 | return -EINVAL; | |
7015 | ||
1db64e87 EBE |
7016 | return devlink_fmsg_put_value(fmsg, &value, sizeof(value), NLA_U64); |
7017 | } | |
1db64e87 EBE |
7018 | |
7019 | int devlink_fmsg_string_put(struct devlink_fmsg *fmsg, const char *value) | |
7020 | { | |
573ed90a AL |
7021 | if (fmsg->putting_binary) |
7022 | return -EINVAL; | |
7023 | ||
1db64e87 EBE |
7024 | return devlink_fmsg_put_value(fmsg, value, strlen(value) + 1, |
7025 | NLA_NUL_STRING); | |
7026 | } | |
7027 | EXPORT_SYMBOL_GPL(devlink_fmsg_string_put); | |
7028 | ||
573ed90a AL |
7029 | int devlink_fmsg_binary_put(struct devlink_fmsg *fmsg, const void *value, |
7030 | u16 value_len) | |
1db64e87 | 7031 | { |
573ed90a AL |
7032 | if (!fmsg->putting_binary) |
7033 | return -EINVAL; | |
7034 | ||
1db64e87 EBE |
7035 | return devlink_fmsg_put_value(fmsg, value, value_len, NLA_BINARY); |
7036 | } | |
573ed90a | 7037 | EXPORT_SYMBOL_GPL(devlink_fmsg_binary_put); |
1db64e87 EBE |
7038 | |
7039 | int devlink_fmsg_bool_pair_put(struct devlink_fmsg *fmsg, const char *name, | |
7040 | bool value) | |
7041 | { | |
7042 | int err; | |
7043 | ||
7044 | err = devlink_fmsg_pair_nest_start(fmsg, name); | |
7045 | if (err) | |
7046 | return err; | |
7047 | ||
7048 | err = devlink_fmsg_bool_put(fmsg, value); | |
7049 | if (err) | |
7050 | return err; | |
7051 | ||
7052 | err = devlink_fmsg_pair_nest_end(fmsg); | |
7053 | if (err) | |
7054 | return err; | |
7055 | ||
7056 | return 0; | |
7057 | } | |
7058 | EXPORT_SYMBOL_GPL(devlink_fmsg_bool_pair_put); | |
7059 | ||
7060 | int devlink_fmsg_u8_pair_put(struct devlink_fmsg *fmsg, const char *name, | |
7061 | u8 value) | |
7062 | { | |
7063 | int err; | |
7064 | ||
7065 | err = devlink_fmsg_pair_nest_start(fmsg, name); | |
7066 | if (err) | |
7067 | return err; | |
7068 | ||
7069 | err = devlink_fmsg_u8_put(fmsg, value); | |
7070 | if (err) | |
7071 | return err; | |
7072 | ||
7073 | err = devlink_fmsg_pair_nest_end(fmsg); | |
7074 | if (err) | |
7075 | return err; | |
7076 | ||
7077 | return 0; | |
7078 | } | |
7079 | EXPORT_SYMBOL_GPL(devlink_fmsg_u8_pair_put); | |
7080 | ||
7081 | int devlink_fmsg_u32_pair_put(struct devlink_fmsg *fmsg, const char *name, | |
7082 | u32 value) | |
7083 | { | |
7084 | int err; | |
7085 | ||
7086 | err = devlink_fmsg_pair_nest_start(fmsg, name); | |
7087 | if (err) | |
7088 | return err; | |
7089 | ||
7090 | err = devlink_fmsg_u32_put(fmsg, value); | |
7091 | if (err) | |
7092 | return err; | |
7093 | ||
7094 | err = devlink_fmsg_pair_nest_end(fmsg); | |
7095 | if (err) | |
7096 | return err; | |
7097 | ||
7098 | return 0; | |
7099 | } | |
7100 | EXPORT_SYMBOL_GPL(devlink_fmsg_u32_pair_put); | |
7101 | ||
7102 | int devlink_fmsg_u64_pair_put(struct devlink_fmsg *fmsg, const char *name, | |
7103 | u64 value) | |
7104 | { | |
7105 | int err; | |
7106 | ||
7107 | err = devlink_fmsg_pair_nest_start(fmsg, name); | |
7108 | if (err) | |
7109 | return err; | |
7110 | ||
7111 | err = devlink_fmsg_u64_put(fmsg, value); | |
7112 | if (err) | |
7113 | return err; | |
7114 | ||
7115 | err = devlink_fmsg_pair_nest_end(fmsg); | |
7116 | if (err) | |
7117 | return err; | |
7118 | ||
7119 | return 0; | |
7120 | } | |
7121 | EXPORT_SYMBOL_GPL(devlink_fmsg_u64_pair_put); | |
7122 | ||
7123 | int devlink_fmsg_string_pair_put(struct devlink_fmsg *fmsg, const char *name, | |
7124 | const char *value) | |
7125 | { | |
7126 | int err; | |
7127 | ||
7128 | err = devlink_fmsg_pair_nest_start(fmsg, name); | |
7129 | if (err) | |
7130 | return err; | |
7131 | ||
7132 | err = devlink_fmsg_string_put(fmsg, value); | |
7133 | if (err) | |
7134 | return err; | |
7135 | ||
7136 | err = devlink_fmsg_pair_nest_end(fmsg); | |
7137 | if (err) | |
7138 | return err; | |
7139 | ||
7140 | return 0; | |
7141 | } | |
7142 | EXPORT_SYMBOL_GPL(devlink_fmsg_string_pair_put); | |
7143 | ||
7144 | int devlink_fmsg_binary_pair_put(struct devlink_fmsg *fmsg, const char *name, | |
e2cde864 | 7145 | const void *value, u32 value_len) |
1db64e87 | 7146 | { |
e2cde864 | 7147 | u32 data_size; |
573ed90a | 7148 | int end_err; |
e2cde864 | 7149 | u32 offset; |
1db64e87 EBE |
7150 | int err; |
7151 | ||
573ed90a | 7152 | err = devlink_fmsg_binary_pair_nest_start(fmsg, name); |
1db64e87 EBE |
7153 | if (err) |
7154 | return err; | |
7155 | ||
e2cde864 AL |
7156 | for (offset = 0; offset < value_len; offset += data_size) { |
7157 | data_size = value_len - offset; | |
7158 | if (data_size > DEVLINK_FMSG_MAX_SIZE) | |
7159 | data_size = DEVLINK_FMSG_MAX_SIZE; | |
7160 | err = devlink_fmsg_binary_put(fmsg, value + offset, data_size); | |
7161 | if (err) | |
573ed90a AL |
7162 | break; |
7163 | /* Exit from loop with a break (instead of | |
7164 | * return) to make sure putting_binary is turned off in | |
7165 | * devlink_fmsg_binary_pair_nest_end | |
7166 | */ | |
e2cde864 | 7167 | } |
1db64e87 | 7168 | |
573ed90a AL |
7169 | end_err = devlink_fmsg_binary_pair_nest_end(fmsg); |
7170 | if (end_err) | |
7171 | err = end_err; | |
1db64e87 | 7172 | |
573ed90a | 7173 | return err; |
1db64e87 EBE |
7174 | } |
7175 | EXPORT_SYMBOL_GPL(devlink_fmsg_binary_pair_put); | |
7176 | ||
7177 | static int | |
7178 | devlink_fmsg_item_fill_type(struct devlink_fmsg_item *msg, struct sk_buff *skb) | |
7179 | { | |
7180 | switch (msg->nla_type) { | |
7181 | case NLA_FLAG: | |
7182 | case NLA_U8: | |
7183 | case NLA_U32: | |
7184 | case NLA_U64: | |
7185 | case NLA_NUL_STRING: | |
7186 | case NLA_BINARY: | |
7187 | return nla_put_u8(skb, DEVLINK_ATTR_FMSG_OBJ_VALUE_TYPE, | |
7188 | msg->nla_type); | |
7189 | default: | |
7190 | return -EINVAL; | |
7191 | } | |
7192 | } | |
7193 | ||
7194 | static int | |
7195 | devlink_fmsg_item_fill_data(struct devlink_fmsg_item *msg, struct sk_buff *skb) | |
7196 | { | |
7197 | int attrtype = DEVLINK_ATTR_FMSG_OBJ_VALUE_DATA; | |
7198 | u8 tmp; | |
7199 | ||
7200 | switch (msg->nla_type) { | |
7201 | case NLA_FLAG: | |
7202 | /* Always provide flag data, regardless of its value */ | |
7203 | tmp = *(bool *) msg->value; | |
7204 | ||
7205 | return nla_put_u8(skb, attrtype, tmp); | |
7206 | case NLA_U8: | |
7207 | return nla_put_u8(skb, attrtype, *(u8 *) msg->value); | |
7208 | case NLA_U32: | |
7209 | return nla_put_u32(skb, attrtype, *(u32 *) msg->value); | |
7210 | case NLA_U64: | |
7211 | return nla_put_u64_64bit(skb, attrtype, *(u64 *) msg->value, | |
7212 | DEVLINK_ATTR_PAD); | |
7213 | case NLA_NUL_STRING: | |
7214 | return nla_put_string(skb, attrtype, (char *) &msg->value); | |
7215 | case NLA_BINARY: | |
7216 | return nla_put(skb, attrtype, msg->len, (void *) &msg->value); | |
7217 | default: | |
7218 | return -EINVAL; | |
7219 | } | |
7220 | } | |
7221 | ||
7222 | static int | |
7223 | devlink_fmsg_prepare_skb(struct devlink_fmsg *fmsg, struct sk_buff *skb, | |
7224 | int *start) | |
7225 | { | |
7226 | struct devlink_fmsg_item *item; | |
7227 | struct nlattr *fmsg_nlattr; | |
7228 | int i = 0; | |
7229 | int err; | |
7230 | ||
ae0be8de | 7231 | fmsg_nlattr = nla_nest_start_noflag(skb, DEVLINK_ATTR_FMSG); |
1db64e87 EBE |
7232 | if (!fmsg_nlattr) |
7233 | return -EMSGSIZE; | |
7234 | ||
7235 | list_for_each_entry(item, &fmsg->item_list, list) { | |
7236 | if (i < *start) { | |
7237 | i++; | |
7238 | continue; | |
7239 | } | |
7240 | ||
7241 | switch (item->attrtype) { | |
7242 | case DEVLINK_ATTR_FMSG_OBJ_NEST_START: | |
7243 | case DEVLINK_ATTR_FMSG_PAIR_NEST_START: | |
7244 | case DEVLINK_ATTR_FMSG_ARR_NEST_START: | |
7245 | case DEVLINK_ATTR_FMSG_NEST_END: | |
7246 | err = nla_put_flag(skb, item->attrtype); | |
7247 | break; | |
7248 | case DEVLINK_ATTR_FMSG_OBJ_VALUE_DATA: | |
7249 | err = devlink_fmsg_item_fill_type(item, skb); | |
7250 | if (err) | |
7251 | break; | |
7252 | err = devlink_fmsg_item_fill_data(item, skb); | |
7253 | break; | |
7254 | case DEVLINK_ATTR_FMSG_OBJ_NAME: | |
7255 | err = nla_put_string(skb, item->attrtype, | |
7256 | (char *) &item->value); | |
7257 | break; | |
7258 | default: | |
7259 | err = -EINVAL; | |
7260 | break; | |
7261 | } | |
7262 | if (!err) | |
7263 | *start = ++i; | |
7264 | else | |
7265 | break; | |
7266 | } | |
7267 | ||
7268 | nla_nest_end(skb, fmsg_nlattr); | |
7269 | return err; | |
7270 | } | |
7271 | ||
7272 | static int devlink_fmsg_snd(struct devlink_fmsg *fmsg, | |
7273 | struct genl_info *info, | |
7274 | enum devlink_command cmd, int flags) | |
7275 | { | |
7276 | struct nlmsghdr *nlh; | |
7277 | struct sk_buff *skb; | |
7278 | bool last = false; | |
7279 | int index = 0; | |
7280 | void *hdr; | |
7281 | int err; | |
7282 | ||
7283 | while (!last) { | |
7284 | int tmp_index = index; | |
7285 | ||
7286 | skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
7287 | if (!skb) | |
7288 | return -ENOMEM; | |
7289 | ||
7290 | hdr = genlmsg_put(skb, info->snd_portid, info->snd_seq, | |
7291 | &devlink_nl_family, flags | NLM_F_MULTI, cmd); | |
7292 | if (!hdr) { | |
7293 | err = -EMSGSIZE; | |
7294 | goto nla_put_failure; | |
7295 | } | |
7296 | ||
7297 | err = devlink_fmsg_prepare_skb(fmsg, skb, &index); | |
7298 | if (!err) | |
7299 | last = true; | |
7300 | else if (err != -EMSGSIZE || tmp_index == index) | |
7301 | goto nla_put_failure; | |
7302 | ||
7303 | genlmsg_end(skb, hdr); | |
7304 | err = genlmsg_reply(skb, info); | |
7305 | if (err) | |
7306 | return err; | |
7307 | } | |
7308 | ||
7309 | skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
7310 | if (!skb) | |
7311 | return -ENOMEM; | |
7312 | nlh = nlmsg_put(skb, info->snd_portid, info->snd_seq, | |
7313 | NLMSG_DONE, 0, flags | NLM_F_MULTI); | |
7314 | if (!nlh) { | |
7315 | err = -EMSGSIZE; | |
7316 | goto nla_put_failure; | |
7317 | } | |
1db64e87 | 7318 | |
fde55ea7 | 7319 | return genlmsg_reply(skb, info); |
1db64e87 EBE |
7320 | |
7321 | nla_put_failure: | |
7322 | nlmsg_free(skb); | |
7323 | return err; | |
7324 | } | |
7325 | ||
e44ef4e4 AL |
7326 | static int devlink_fmsg_dumpit(struct devlink_fmsg *fmsg, struct sk_buff *skb, |
7327 | struct netlink_callback *cb, | |
7328 | enum devlink_command cmd) | |
7329 | { | |
7330 | int index = cb->args[0]; | |
7331 | int tmp_index = index; | |
7332 | void *hdr; | |
7333 | int err; | |
7334 | ||
7335 | hdr = genlmsg_put(skb, NETLINK_CB(cb->skb).portid, cb->nlh->nlmsg_seq, | |
7336 | &devlink_nl_family, NLM_F_ACK | NLM_F_MULTI, cmd); | |
7337 | if (!hdr) { | |
7338 | err = -EMSGSIZE; | |
7339 | goto nla_put_failure; | |
7340 | } | |
7341 | ||
7342 | err = devlink_fmsg_prepare_skb(fmsg, skb, &index); | |
7343 | if ((err && err != -EMSGSIZE) || tmp_index == index) | |
7344 | goto nla_put_failure; | |
7345 | ||
7346 | cb->args[0] = index; | |
7347 | genlmsg_end(skb, hdr); | |
7348 | return skb->len; | |
7349 | ||
7350 | nla_put_failure: | |
7351 | genlmsg_cancel(skb, hdr); | |
7352 | return err; | |
7353 | } | |
7354 | ||
a0bdcc59 EBE |
7355 | struct devlink_health_reporter { |
7356 | struct list_head list; | |
7357 | void *priv; | |
7358 | const struct devlink_health_reporter_ops *ops; | |
7359 | struct devlink *devlink; | |
f4f54166 | 7360 | struct devlink_port *devlink_port; |
c8e1da0b EBE |
7361 | struct devlink_fmsg *dump_fmsg; |
7362 | struct mutex dump_lock; /* lock parallel read/write from dump buffers */ | |
a0bdcc59 EBE |
7363 | u64 graceful_period; |
7364 | bool auto_recover; | |
48bb52c8 | 7365 | bool auto_dump; |
a0bdcc59 | 7366 | u8 health_state; |
c8e1da0b | 7367 | u64 dump_ts; |
d279505b | 7368 | u64 dump_real_ts; |
c8e1da0b EBE |
7369 | u64 error_count; |
7370 | u64 recovery_count; | |
7371 | u64 last_recovery_ts; | |
b587bdaf | 7372 | refcount_t refcount; |
c8e1da0b EBE |
7373 | }; |
7374 | ||
a0bdcc59 EBE |
7375 | void * |
7376 | devlink_health_reporter_priv(struct devlink_health_reporter *reporter) | |
7377 | { | |
7378 | return reporter->priv; | |
7379 | } | |
7380 | EXPORT_SYMBOL_GPL(devlink_health_reporter_priv); | |
7381 | ||
7382 | static struct devlink_health_reporter * | |
bd821005 VT |
7383 | __devlink_health_reporter_find_by_name(struct list_head *reporter_list, |
7384 | struct mutex *list_lock, | |
7385 | const char *reporter_name) | |
a0bdcc59 EBE |
7386 | { |
7387 | struct devlink_health_reporter *reporter; | |
7388 | ||
bd821005 VT |
7389 | lockdep_assert_held(list_lock); |
7390 | list_for_each_entry(reporter, reporter_list, list) | |
a0bdcc59 EBE |
7391 | if (!strcmp(reporter->ops->name, reporter_name)) |
7392 | return reporter; | |
7393 | return NULL; | |
7394 | } | |
7395 | ||
bd821005 VT |
7396 | static struct devlink_health_reporter * |
7397 | devlink_health_reporter_find_by_name(struct devlink *devlink, | |
7398 | const char *reporter_name) | |
7399 | { | |
7400 | return __devlink_health_reporter_find_by_name(&devlink->reporter_list, | |
7401 | &devlink->reporters_lock, | |
7402 | reporter_name); | |
7403 | } | |
7404 | ||
f4f54166 VT |
7405 | static struct devlink_health_reporter * |
7406 | devlink_port_health_reporter_find_by_name(struct devlink_port *devlink_port, | |
7407 | const char *reporter_name) | |
7408 | { | |
7409 | return __devlink_health_reporter_find_by_name(&devlink_port->reporter_list, | |
7410 | &devlink_port->reporters_lock, | |
7411 | reporter_name); | |
7412 | } | |
7413 | ||
c57544b3 VT |
7414 | static struct devlink_health_reporter * |
7415 | __devlink_health_reporter_create(struct devlink *devlink, | |
7416 | const struct devlink_health_reporter_ops *ops, | |
7417 | u64 graceful_period, void *priv) | |
7418 | { | |
7419 | struct devlink_health_reporter *reporter; | |
7420 | ||
7421 | if (WARN_ON(graceful_period && !ops->recover)) | |
7422 | return ERR_PTR(-EINVAL); | |
7423 | ||
7424 | reporter = kzalloc(sizeof(*reporter), GFP_KERNEL); | |
7425 | if (!reporter) | |
7426 | return ERR_PTR(-ENOMEM); | |
7427 | ||
7428 | reporter->priv = priv; | |
7429 | reporter->ops = ops; | |
7430 | reporter->devlink = devlink; | |
7431 | reporter->graceful_period = graceful_period; | |
7432 | reporter->auto_recover = !!ops->recover; | |
7433 | reporter->auto_dump = !!ops->dump; | |
7434 | mutex_init(&reporter->dump_lock); | |
7435 | refcount_set(&reporter->refcount, 1); | |
7436 | return reporter; | |
7437 | } | |
7438 | ||
15c724b9 VT |
7439 | /** |
7440 | * devlink_port_health_reporter_create - create devlink health reporter for | |
7441 | * specified port instance | |
7442 | * | |
7443 | * @port: devlink_port which should contain the new reporter | |
7444 | * @ops: ops | |
7445 | * @graceful_period: to avoid recovery loops, in msecs | |
7446 | * @priv: priv | |
7447 | */ | |
7448 | struct devlink_health_reporter * | |
7449 | devlink_port_health_reporter_create(struct devlink_port *port, | |
7450 | const struct devlink_health_reporter_ops *ops, | |
7451 | u64 graceful_period, void *priv) | |
7452 | { | |
7453 | struct devlink_health_reporter *reporter; | |
7454 | ||
7455 | mutex_lock(&port->reporters_lock); | |
7456 | if (__devlink_health_reporter_find_by_name(&port->reporter_list, | |
7457 | &port->reporters_lock, ops->name)) { | |
7458 | reporter = ERR_PTR(-EEXIST); | |
7459 | goto unlock; | |
7460 | } | |
7461 | ||
7462 | reporter = __devlink_health_reporter_create(port->devlink, ops, | |
7463 | graceful_period, priv); | |
7464 | if (IS_ERR(reporter)) | |
7465 | goto unlock; | |
7466 | ||
7467 | reporter->devlink_port = port; | |
7468 | list_add_tail(&reporter->list, &port->reporter_list); | |
7469 | unlock: | |
7470 | mutex_unlock(&port->reporters_lock); | |
7471 | return reporter; | |
7472 | } | |
7473 | EXPORT_SYMBOL_GPL(devlink_port_health_reporter_create); | |
7474 | ||
a0bdcc59 EBE |
7475 | /** |
7476 | * devlink_health_reporter_create - create devlink health reporter | |
7477 | * | |
7478 | * @devlink: devlink | |
7479 | * @ops: ops | |
7480 | * @graceful_period: to avoid recovery loops, in msecs | |
a0bdcc59 EBE |
7481 | * @priv: priv |
7482 | */ | |
7483 | struct devlink_health_reporter * | |
7484 | devlink_health_reporter_create(struct devlink *devlink, | |
7485 | const struct devlink_health_reporter_ops *ops, | |
ba7d16c7 | 7486 | u64 graceful_period, void *priv) |
a0bdcc59 EBE |
7487 | { |
7488 | struct devlink_health_reporter *reporter; | |
7489 | ||
b587bdaf | 7490 | mutex_lock(&devlink->reporters_lock); |
a0bdcc59 EBE |
7491 | if (devlink_health_reporter_find_by_name(devlink, ops->name)) { |
7492 | reporter = ERR_PTR(-EEXIST); | |
7493 | goto unlock; | |
7494 | } | |
7495 | ||
c57544b3 VT |
7496 | reporter = __devlink_health_reporter_create(devlink, ops, |
7497 | graceful_period, priv); | |
7498 | if (IS_ERR(reporter)) | |
a0bdcc59 | 7499 | goto unlock; |
a0bdcc59 | 7500 | |
a0bdcc59 EBE |
7501 | list_add_tail(&reporter->list, &devlink->reporter_list); |
7502 | unlock: | |
b587bdaf | 7503 | mutex_unlock(&devlink->reporters_lock); |
a0bdcc59 EBE |
7504 | return reporter; |
7505 | } | |
7506 | EXPORT_SYMBOL_GPL(devlink_health_reporter_create); | |
7507 | ||
3c5584bf VT |
7508 | static void |
7509 | devlink_health_reporter_free(struct devlink_health_reporter *reporter) | |
7510 | { | |
7511 | mutex_destroy(&reporter->dump_lock); | |
7512 | if (reporter->dump_fmsg) | |
7513 | devlink_fmsg_free(reporter->dump_fmsg); | |
7514 | kfree(reporter); | |
7515 | } | |
7516 | ||
7517 | static void | |
7518 | devlink_health_reporter_put(struct devlink_health_reporter *reporter) | |
7519 | { | |
7520 | if (refcount_dec_and_test(&reporter->refcount)) | |
7521 | devlink_health_reporter_free(reporter); | |
7522 | } | |
7523 | ||
7524 | static void | |
7525 | __devlink_health_reporter_destroy(struct devlink_health_reporter *reporter) | |
7526 | { | |
7527 | list_del(&reporter->list); | |
7528 | devlink_health_reporter_put(reporter); | |
7529 | } | |
7530 | ||
a0bdcc59 EBE |
7531 | /** |
7532 | * devlink_health_reporter_destroy - destroy devlink health reporter | |
7533 | * | |
7534 | * @reporter: devlink health reporter to destroy | |
7535 | */ | |
7536 | void | |
7537 | devlink_health_reporter_destroy(struct devlink_health_reporter *reporter) | |
7538 | { | |
5d037b4d IS |
7539 | struct mutex *lock = &reporter->devlink->reporters_lock; |
7540 | ||
7541 | mutex_lock(lock); | |
3c5584bf | 7542 | __devlink_health_reporter_destroy(reporter); |
5d037b4d | 7543 | mutex_unlock(lock); |
a0bdcc59 EBE |
7544 | } |
7545 | EXPORT_SYMBOL_GPL(devlink_health_reporter_destroy); | |
7546 | ||
15c724b9 VT |
7547 | /** |
7548 | * devlink_port_health_reporter_destroy - destroy devlink port health reporter | |
7549 | * | |
7550 | * @reporter: devlink health reporter to destroy | |
7551 | */ | |
7552 | void | |
7553 | devlink_port_health_reporter_destroy(struct devlink_health_reporter *reporter) | |
7554 | { | |
5d037b4d IS |
7555 | struct mutex *lock = &reporter->devlink_port->reporters_lock; |
7556 | ||
7557 | mutex_lock(lock); | |
15c724b9 | 7558 | __devlink_health_reporter_destroy(reporter); |
5d037b4d | 7559 | mutex_unlock(lock); |
15c724b9 VT |
7560 | } |
7561 | EXPORT_SYMBOL_GPL(devlink_port_health_reporter_destroy); | |
7562 | ||
6ec8b6cd MS |
7563 | static int |
7564 | devlink_nl_health_reporter_fill(struct sk_buff *msg, | |
6ec8b6cd MS |
7565 | struct devlink_health_reporter *reporter, |
7566 | enum devlink_command cmd, u32 portid, | |
7567 | u32 seq, int flags) | |
7568 | { | |
7ca973dc | 7569 | struct devlink *devlink = reporter->devlink; |
6ec8b6cd MS |
7570 | struct nlattr *reporter_attr; |
7571 | void *hdr; | |
7572 | ||
7573 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
7574 | if (!hdr) | |
7575 | return -EMSGSIZE; | |
7576 | ||
7577 | if (devlink_nl_put_handle(msg, devlink)) | |
7578 | goto genlmsg_cancel; | |
7579 | ||
f4f54166 VT |
7580 | if (reporter->devlink_port) { |
7581 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, reporter->devlink_port->index)) | |
7582 | goto genlmsg_cancel; | |
7583 | } | |
6ec8b6cd MS |
7584 | reporter_attr = nla_nest_start_noflag(msg, |
7585 | DEVLINK_ATTR_HEALTH_REPORTER); | |
7586 | if (!reporter_attr) | |
7587 | goto genlmsg_cancel; | |
7588 | if (nla_put_string(msg, DEVLINK_ATTR_HEALTH_REPORTER_NAME, | |
7589 | reporter->ops->name)) | |
7590 | goto reporter_nest_cancel; | |
7591 | if (nla_put_u8(msg, DEVLINK_ATTR_HEALTH_REPORTER_STATE, | |
7592 | reporter->health_state)) | |
7593 | goto reporter_nest_cancel; | |
7594 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_HEALTH_REPORTER_ERR_COUNT, | |
7595 | reporter->error_count, DEVLINK_ATTR_PAD)) | |
7596 | goto reporter_nest_cancel; | |
7597 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_HEALTH_REPORTER_RECOVER_COUNT, | |
7598 | reporter->recovery_count, DEVLINK_ATTR_PAD)) | |
7599 | goto reporter_nest_cancel; | |
7600 | if (reporter->ops->recover && | |
7601 | nla_put_u64_64bit(msg, DEVLINK_ATTR_HEALTH_REPORTER_GRACEFUL_PERIOD, | |
7602 | reporter->graceful_period, | |
7603 | DEVLINK_ATTR_PAD)) | |
7604 | goto reporter_nest_cancel; | |
7605 | if (reporter->ops->recover && | |
7606 | nla_put_u8(msg, DEVLINK_ATTR_HEALTH_REPORTER_AUTO_RECOVER, | |
7607 | reporter->auto_recover)) | |
7608 | goto reporter_nest_cancel; | |
7609 | if (reporter->dump_fmsg && | |
7610 | nla_put_u64_64bit(msg, DEVLINK_ATTR_HEALTH_REPORTER_DUMP_TS, | |
7611 | jiffies_to_msecs(reporter->dump_ts), | |
7612 | DEVLINK_ATTR_PAD)) | |
7613 | goto reporter_nest_cancel; | |
7614 | if (reporter->dump_fmsg && | |
7615 | nla_put_u64_64bit(msg, DEVLINK_ATTR_HEALTH_REPORTER_DUMP_TS_NS, | |
7616 | reporter->dump_real_ts, DEVLINK_ATTR_PAD)) | |
7617 | goto reporter_nest_cancel; | |
48bb52c8 EBE |
7618 | if (reporter->ops->dump && |
7619 | nla_put_u8(msg, DEVLINK_ATTR_HEALTH_REPORTER_AUTO_DUMP, | |
7620 | reporter->auto_dump)) | |
7621 | goto reporter_nest_cancel; | |
6ec8b6cd MS |
7622 | |
7623 | nla_nest_end(msg, reporter_attr); | |
7624 | genlmsg_end(msg, hdr); | |
7625 | return 0; | |
7626 | ||
7627 | reporter_nest_cancel: | |
7628 | nla_nest_end(msg, reporter_attr); | |
7629 | genlmsg_cancel: | |
7630 | genlmsg_cancel(msg, hdr); | |
7631 | return -EMSGSIZE; | |
7632 | } | |
7633 | ||
7634 | static void devlink_recover_notify(struct devlink_health_reporter *reporter, | |
7635 | enum devlink_command cmd) | |
7636 | { | |
cf530217 | 7637 | struct devlink *devlink = reporter->devlink; |
6ec8b6cd MS |
7638 | struct sk_buff *msg; |
7639 | int err; | |
7640 | ||
7641 | WARN_ON(cmd != DEVLINK_CMD_HEALTH_REPORTER_RECOVER); | |
cf530217 | 7642 | WARN_ON(!xa_get_mark(&devlinks, devlink->index, DEVLINK_REGISTERED)); |
6ec8b6cd MS |
7643 | |
7644 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
7645 | if (!msg) | |
7646 | return; | |
7647 | ||
7ca973dc | 7648 | err = devlink_nl_health_reporter_fill(msg, reporter, cmd, 0, 0, 0); |
6ec8b6cd MS |
7649 | if (err) { |
7650 | nlmsg_free(msg); | |
7651 | return; | |
7652 | } | |
7653 | ||
cf530217 LR |
7654 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), msg, |
7655 | 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
6ec8b6cd MS |
7656 | } |
7657 | ||
6181e5cb VG |
7658 | void |
7659 | devlink_health_reporter_recovery_done(struct devlink_health_reporter *reporter) | |
7660 | { | |
7661 | reporter->recovery_count++; | |
7662 | reporter->last_recovery_ts = jiffies; | |
7663 | } | |
7664 | EXPORT_SYMBOL_GPL(devlink_health_reporter_recovery_done); | |
7665 | ||
c8e1da0b EBE |
7666 | static int |
7667 | devlink_health_reporter_recover(struct devlink_health_reporter *reporter, | |
e7a98105 | 7668 | void *priv_ctx, struct netlink_ext_ack *extack) |
c8e1da0b EBE |
7669 | { |
7670 | int err; | |
7671 | ||
40281820 JP |
7672 | if (reporter->health_state == DEVLINK_HEALTH_REPORTER_STATE_HEALTHY) |
7673 | return 0; | |
7674 | ||
c8e1da0b EBE |
7675 | if (!reporter->ops->recover) |
7676 | return -EOPNOTSUPP; | |
7677 | ||
e7a98105 | 7678 | err = reporter->ops->recover(reporter, priv_ctx, extack); |
c8e1da0b EBE |
7679 | if (err) |
7680 | return err; | |
7681 | ||
6181e5cb | 7682 | devlink_health_reporter_recovery_done(reporter); |
c8e1da0b | 7683 | reporter->health_state = DEVLINK_HEALTH_REPORTER_STATE_HEALTHY; |
6ec8b6cd | 7684 | devlink_recover_notify(reporter, DEVLINK_CMD_HEALTH_REPORTER_RECOVER); |
c8e1da0b EBE |
7685 | |
7686 | return 0; | |
7687 | } | |
7688 | ||
7689 | static void | |
7690 | devlink_health_dump_clear(struct devlink_health_reporter *reporter) | |
7691 | { | |
7692 | if (!reporter->dump_fmsg) | |
7693 | return; | |
7694 | devlink_fmsg_free(reporter->dump_fmsg); | |
7695 | reporter->dump_fmsg = NULL; | |
7696 | } | |
7697 | ||
7698 | static int devlink_health_do_dump(struct devlink_health_reporter *reporter, | |
e7a98105 JP |
7699 | void *priv_ctx, |
7700 | struct netlink_ext_ack *extack) | |
c8e1da0b EBE |
7701 | { |
7702 | int err; | |
7703 | ||
7704 | if (!reporter->ops->dump) | |
7705 | return 0; | |
7706 | ||
7707 | if (reporter->dump_fmsg) | |
7708 | return 0; | |
7709 | ||
7710 | reporter->dump_fmsg = devlink_fmsg_alloc(); | |
7711 | if (!reporter->dump_fmsg) { | |
7712 | err = -ENOMEM; | |
7713 | return err; | |
7714 | } | |
7715 | ||
7716 | err = devlink_fmsg_obj_nest_start(reporter->dump_fmsg); | |
7717 | if (err) | |
7718 | goto dump_err; | |
7719 | ||
7720 | err = reporter->ops->dump(reporter, reporter->dump_fmsg, | |
e7a98105 | 7721 | priv_ctx, extack); |
c8e1da0b EBE |
7722 | if (err) |
7723 | goto dump_err; | |
7724 | ||
7725 | err = devlink_fmsg_obj_nest_end(reporter->dump_fmsg); | |
7726 | if (err) | |
7727 | goto dump_err; | |
7728 | ||
7729 | reporter->dump_ts = jiffies; | |
d279505b | 7730 | reporter->dump_real_ts = ktime_get_real_ns(); |
c8e1da0b EBE |
7731 | |
7732 | return 0; | |
7733 | ||
7734 | dump_err: | |
7735 | devlink_health_dump_clear(reporter); | |
7736 | return err; | |
7737 | } | |
7738 | ||
7739 | int devlink_health_report(struct devlink_health_reporter *reporter, | |
7740 | const char *msg, void *priv_ctx) | |
7741 | { | |
a0a21adb | 7742 | enum devlink_health_reporter_state prev_health_state; |
c8e1da0b | 7743 | struct devlink *devlink = reporter->devlink; |
bea0c5c9 | 7744 | unsigned long recover_ts_threshold; |
c90005b5 | 7745 | int ret; |
c8e1da0b EBE |
7746 | |
7747 | /* write a log message of the current error */ | |
7748 | WARN_ON(!msg); | |
7749 | trace_devlink_health_report(devlink, reporter->ops->name, msg); | |
7750 | reporter->error_count++; | |
a0a21adb EBE |
7751 | prev_health_state = reporter->health_state; |
7752 | reporter->health_state = DEVLINK_HEALTH_REPORTER_STATE_ERROR; | |
6ec8b6cd | 7753 | devlink_recover_notify(reporter, DEVLINK_CMD_HEALTH_REPORTER_RECOVER); |
c8e1da0b EBE |
7754 | |
7755 | /* abort if the previous error wasn't recovered */ | |
bea0c5c9 AL |
7756 | recover_ts_threshold = reporter->last_recovery_ts + |
7757 | msecs_to_jiffies(reporter->graceful_period); | |
c8e1da0b | 7758 | if (reporter->auto_recover && |
a0a21adb | 7759 | (prev_health_state != DEVLINK_HEALTH_REPORTER_STATE_HEALTHY || |
bea0c5c9 AL |
7760 | (reporter->last_recovery_ts && reporter->recovery_count && |
7761 | time_is_after_jiffies(recover_ts_threshold)))) { | |
c8e1da0b EBE |
7762 | trace_devlink_health_recover_aborted(devlink, |
7763 | reporter->ops->name, | |
7764 | reporter->health_state, | |
7765 | jiffies - | |
7766 | reporter->last_recovery_ts); | |
7767 | return -ECANCELED; | |
7768 | } | |
7769 | ||
7770 | reporter->health_state = DEVLINK_HEALTH_REPORTER_STATE_ERROR; | |
7771 | ||
48bb52c8 EBE |
7772 | if (reporter->auto_dump) { |
7773 | mutex_lock(&reporter->dump_lock); | |
7774 | /* store current dump of current error, for later analysis */ | |
7775 | devlink_health_do_dump(reporter, priv_ctx, NULL); | |
7776 | mutex_unlock(&reporter->dump_lock); | |
7777 | } | |
c8e1da0b | 7778 | |
c90005b5 MS |
7779 | if (!reporter->auto_recover) |
7780 | return 0; | |
c8e1da0b | 7781 | |
c90005b5 MS |
7782 | devl_lock(devlink); |
7783 | ret = devlink_health_reporter_recover(reporter, priv_ctx, NULL); | |
7784 | devl_unlock(devlink); | |
7785 | ||
7786 | return ret; | |
c8e1da0b EBE |
7787 | } |
7788 | EXPORT_SYMBOL_GPL(devlink_health_report); | |
7789 | ||
7afe335a | 7790 | static struct devlink_health_reporter * |
e44ef4e4 AL |
7791 | devlink_health_reporter_get_from_attrs(struct devlink *devlink, |
7792 | struct nlattr **attrs) | |
7afe335a | 7793 | { |
b587bdaf | 7794 | struct devlink_health_reporter *reporter; |
f4f54166 | 7795 | struct devlink_port *devlink_port; |
7afe335a EBE |
7796 | char *reporter_name; |
7797 | ||
e44ef4e4 | 7798 | if (!attrs[DEVLINK_ATTR_HEALTH_REPORTER_NAME]) |
7afe335a EBE |
7799 | return NULL; |
7800 | ||
e44ef4e4 | 7801 | reporter_name = nla_data(attrs[DEVLINK_ATTR_HEALTH_REPORTER_NAME]); |
f4f54166 VT |
7802 | devlink_port = devlink_port_get_from_attrs(devlink, attrs); |
7803 | if (IS_ERR(devlink_port)) { | |
7804 | mutex_lock(&devlink->reporters_lock); | |
7805 | reporter = devlink_health_reporter_find_by_name(devlink, reporter_name); | |
7806 | if (reporter) | |
7807 | refcount_inc(&reporter->refcount); | |
7808 | mutex_unlock(&devlink->reporters_lock); | |
7809 | } else { | |
7810 | mutex_lock(&devlink_port->reporters_lock); | |
7811 | reporter = devlink_port_health_reporter_find_by_name(devlink_port, reporter_name); | |
7812 | if (reporter) | |
7813 | refcount_inc(&reporter->refcount); | |
7814 | mutex_unlock(&devlink_port->reporters_lock); | |
7815 | } | |
7816 | ||
b587bdaf MS |
7817 | return reporter; |
7818 | } | |
7819 | ||
e44ef4e4 AL |
7820 | static struct devlink_health_reporter * |
7821 | devlink_health_reporter_get_from_info(struct devlink *devlink, | |
7822 | struct genl_info *info) | |
7823 | { | |
7824 | return devlink_health_reporter_get_from_attrs(devlink, info->attrs); | |
7825 | } | |
7826 | ||
7827 | static struct devlink_health_reporter * | |
7828 | devlink_health_reporter_get_from_cb(struct netlink_callback *cb) | |
7829 | { | |
ee85da53 | 7830 | const struct genl_dumpit_info *info = genl_dumpit_info(cb); |
e44ef4e4 | 7831 | struct devlink_health_reporter *reporter; |
ee85da53 | 7832 | struct nlattr **attrs = info->attrs; |
e44ef4e4 | 7833 | struct devlink *devlink; |
e44ef4e4 | 7834 | |
e44ef4e4 AL |
7835 | devlink = devlink_get_from_attrs(sock_net(cb->skb->sk), attrs); |
7836 | if (IS_ERR(devlink)) | |
d3efc2a6 | 7837 | return NULL; |
e44ef4e4 AL |
7838 | |
7839 | reporter = devlink_health_reporter_get_from_attrs(devlink, attrs); | |
437ebfd9 | 7840 | devlink_put(devlink); |
e44ef4e4 | 7841 | return reporter; |
e44ef4e4 AL |
7842 | } |
7843 | ||
97ff3bd3 VG |
7844 | void |
7845 | devlink_health_reporter_state_update(struct devlink_health_reporter *reporter, | |
7846 | enum devlink_health_reporter_state state) | |
7847 | { | |
7848 | if (WARN_ON(state != DEVLINK_HEALTH_REPORTER_STATE_HEALTHY && | |
7849 | state != DEVLINK_HEALTH_REPORTER_STATE_ERROR)) | |
7850 | return; | |
7851 | ||
7852 | if (reporter->health_state == state) | |
7853 | return; | |
7854 | ||
7855 | reporter->health_state = state; | |
7856 | trace_devlink_health_reporter_state_update(reporter->devlink, | |
7857 | reporter->ops->name, state); | |
7858 | devlink_recover_notify(reporter, DEVLINK_CMD_HEALTH_REPORTER_RECOVER); | |
7859 | } | |
7860 | EXPORT_SYMBOL_GPL(devlink_health_reporter_state_update); | |
7861 | ||
7afe335a EBE |
7862 | static int devlink_nl_cmd_health_reporter_get_doit(struct sk_buff *skb, |
7863 | struct genl_info *info) | |
7864 | { | |
7865 | struct devlink *devlink = info->user_ptr[0]; | |
7866 | struct devlink_health_reporter *reporter; | |
7867 | struct sk_buff *msg; | |
7868 | int err; | |
7869 | ||
7870 | reporter = devlink_health_reporter_get_from_info(devlink, info); | |
7871 | if (!reporter) | |
7872 | return -EINVAL; | |
7873 | ||
7874 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
b587bdaf MS |
7875 | if (!msg) { |
7876 | err = -ENOMEM; | |
7877 | goto out; | |
7878 | } | |
7afe335a | 7879 | |
7ca973dc | 7880 | err = devlink_nl_health_reporter_fill(msg, reporter, |
7afe335a EBE |
7881 | DEVLINK_CMD_HEALTH_REPORTER_GET, |
7882 | info->snd_portid, info->snd_seq, | |
7883 | 0); | |
7884 | if (err) { | |
7885 | nlmsg_free(msg); | |
b587bdaf | 7886 | goto out; |
7afe335a EBE |
7887 | } |
7888 | ||
b587bdaf MS |
7889 | err = genlmsg_reply(msg, info); |
7890 | out: | |
7891 | devlink_health_reporter_put(reporter); | |
7892 | return err; | |
7afe335a EBE |
7893 | } |
7894 | ||
7895 | static int | |
7896 | devlink_nl_cmd_health_reporter_get_dumpit(struct sk_buff *msg, | |
7897 | struct netlink_callback *cb) | |
7898 | { | |
7899 | struct devlink_health_reporter *reporter; | |
f4f54166 | 7900 | struct devlink_port *port; |
7afe335a EBE |
7901 | struct devlink *devlink; |
7902 | int start = cb->args[0]; | |
11a861d7 | 7903 | unsigned long index; |
7afe335a EBE |
7904 | int idx = 0; |
7905 | int err; | |
7906 | ||
294c4f57 | 7907 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
b587bdaf | 7908 | mutex_lock(&devlink->reporters_lock); |
7afe335a EBE |
7909 | list_for_each_entry(reporter, &devlink->reporter_list, |
7910 | list) { | |
7911 | if (idx < start) { | |
7912 | idx++; | |
7913 | continue; | |
7914 | } | |
7ca973dc LR |
7915 | err = devlink_nl_health_reporter_fill( |
7916 | msg, reporter, DEVLINK_CMD_HEALTH_REPORTER_GET, | |
7917 | NETLINK_CB(cb->skb).portid, cb->nlh->nlmsg_seq, | |
7918 | NLM_F_MULTI); | |
7afe335a | 7919 | if (err) { |
b587bdaf | 7920 | mutex_unlock(&devlink->reporters_lock); |
437ebfd9 | 7921 | devlink_put(devlink); |
7afe335a EBE |
7922 | goto out; |
7923 | } | |
7924 | idx++; | |
7925 | } | |
b587bdaf | 7926 | mutex_unlock(&devlink->reporters_lock); |
437ebfd9 | 7927 | devlink_put(devlink); |
7afe335a | 7928 | } |
f4f54166 | 7929 | |
294c4f57 | 7930 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
7715023a | 7931 | devl_lock(devlink); |
f4f54166 VT |
7932 | list_for_each_entry(port, &devlink->port_list, list) { |
7933 | mutex_lock(&port->reporters_lock); | |
7934 | list_for_each_entry(reporter, &port->reporter_list, list) { | |
7935 | if (idx < start) { | |
7936 | idx++; | |
7937 | continue; | |
7938 | } | |
7ca973dc LR |
7939 | err = devlink_nl_health_reporter_fill( |
7940 | msg, reporter, | |
7941 | DEVLINK_CMD_HEALTH_REPORTER_GET, | |
7942 | NETLINK_CB(cb->skb).portid, | |
7943 | cb->nlh->nlmsg_seq, NLM_F_MULTI); | |
f4f54166 VT |
7944 | if (err) { |
7945 | mutex_unlock(&port->reporters_lock); | |
7715023a | 7946 | devl_unlock(devlink); |
437ebfd9 | 7947 | devlink_put(devlink); |
f4f54166 VT |
7948 | goto out; |
7949 | } | |
7950 | idx++; | |
7951 | } | |
7952 | mutex_unlock(&port->reporters_lock); | |
7953 | } | |
7715023a | 7954 | devl_unlock(devlink); |
437ebfd9 | 7955 | devlink_put(devlink); |
f4f54166 | 7956 | } |
7afe335a | 7957 | out: |
7afe335a EBE |
7958 | cb->args[0] = idx; |
7959 | return msg->len; | |
7960 | } | |
7961 | ||
a1e55ec0 EBE |
7962 | static int |
7963 | devlink_nl_cmd_health_reporter_set_doit(struct sk_buff *skb, | |
7964 | struct genl_info *info) | |
7965 | { | |
7966 | struct devlink *devlink = info->user_ptr[0]; | |
7967 | struct devlink_health_reporter *reporter; | |
b587bdaf | 7968 | int err; |
a1e55ec0 EBE |
7969 | |
7970 | reporter = devlink_health_reporter_get_from_info(devlink, info); | |
7971 | if (!reporter) | |
7972 | return -EINVAL; | |
7973 | ||
7974 | if (!reporter->ops->recover && | |
7975 | (info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_GRACEFUL_PERIOD] || | |
b587bdaf MS |
7976 | info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_AUTO_RECOVER])) { |
7977 | err = -EOPNOTSUPP; | |
7978 | goto out; | |
7979 | } | |
48bb52c8 EBE |
7980 | if (!reporter->ops->dump && |
7981 | info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_AUTO_DUMP]) { | |
7982 | err = -EOPNOTSUPP; | |
7983 | goto out; | |
7984 | } | |
a1e55ec0 EBE |
7985 | |
7986 | if (info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_GRACEFUL_PERIOD]) | |
7987 | reporter->graceful_period = | |
7988 | nla_get_u64(info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_GRACEFUL_PERIOD]); | |
7989 | ||
7990 | if (info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_AUTO_RECOVER]) | |
7991 | reporter->auto_recover = | |
7992 | nla_get_u8(info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_AUTO_RECOVER]); | |
7993 | ||
48bb52c8 EBE |
7994 | if (info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_AUTO_DUMP]) |
7995 | reporter->auto_dump = | |
7996 | nla_get_u8(info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_AUTO_DUMP]); | |
7997 | ||
b587bdaf | 7998 | devlink_health_reporter_put(reporter); |
a1e55ec0 | 7999 | return 0; |
b587bdaf MS |
8000 | out: |
8001 | devlink_health_reporter_put(reporter); | |
8002 | return err; | |
a1e55ec0 EBE |
8003 | } |
8004 | ||
20a0943a EBE |
8005 | static int devlink_nl_cmd_health_reporter_recover_doit(struct sk_buff *skb, |
8006 | struct genl_info *info) | |
8007 | { | |
8008 | struct devlink *devlink = info->user_ptr[0]; | |
8009 | struct devlink_health_reporter *reporter; | |
b587bdaf | 8010 | int err; |
20a0943a EBE |
8011 | |
8012 | reporter = devlink_health_reporter_get_from_info(devlink, info); | |
8013 | if (!reporter) | |
8014 | return -EINVAL; | |
8015 | ||
e7a98105 | 8016 | err = devlink_health_reporter_recover(reporter, NULL, info->extack); |
b587bdaf MS |
8017 | |
8018 | devlink_health_reporter_put(reporter); | |
8019 | return err; | |
20a0943a EBE |
8020 | } |
8021 | ||
fca42a27 EBE |
8022 | static int devlink_nl_cmd_health_reporter_diagnose_doit(struct sk_buff *skb, |
8023 | struct genl_info *info) | |
8024 | { | |
8025 | struct devlink *devlink = info->user_ptr[0]; | |
8026 | struct devlink_health_reporter *reporter; | |
8027 | struct devlink_fmsg *fmsg; | |
8028 | int err; | |
8029 | ||
8030 | reporter = devlink_health_reporter_get_from_info(devlink, info); | |
8031 | if (!reporter) | |
8032 | return -EINVAL; | |
8033 | ||
b587bdaf MS |
8034 | if (!reporter->ops->diagnose) { |
8035 | devlink_health_reporter_put(reporter); | |
fca42a27 | 8036 | return -EOPNOTSUPP; |
b587bdaf | 8037 | } |
fca42a27 EBE |
8038 | |
8039 | fmsg = devlink_fmsg_alloc(); | |
b587bdaf MS |
8040 | if (!fmsg) { |
8041 | devlink_health_reporter_put(reporter); | |
fca42a27 | 8042 | return -ENOMEM; |
b587bdaf | 8043 | } |
fca42a27 EBE |
8044 | |
8045 | err = devlink_fmsg_obj_nest_start(fmsg); | |
8046 | if (err) | |
8047 | goto out; | |
8048 | ||
e7a98105 | 8049 | err = reporter->ops->diagnose(reporter, fmsg, info->extack); |
fca42a27 EBE |
8050 | if (err) |
8051 | goto out; | |
8052 | ||
8053 | err = devlink_fmsg_obj_nest_end(fmsg); | |
8054 | if (err) | |
8055 | goto out; | |
8056 | ||
8057 | err = devlink_fmsg_snd(fmsg, info, | |
8058 | DEVLINK_CMD_HEALTH_REPORTER_DIAGNOSE, 0); | |
8059 | ||
8060 | out: | |
8061 | devlink_fmsg_free(fmsg); | |
b587bdaf | 8062 | devlink_health_reporter_put(reporter); |
fca42a27 EBE |
8063 | return err; |
8064 | } | |
8065 | ||
e44ef4e4 AL |
8066 | static int |
8067 | devlink_nl_cmd_health_reporter_dump_get_dumpit(struct sk_buff *skb, | |
8068 | struct netlink_callback *cb) | |
35455e23 | 8069 | { |
35455e23 | 8070 | struct devlink_health_reporter *reporter; |
e44ef4e4 | 8071 | u64 start = cb->args[0]; |
35455e23 EBE |
8072 | int err; |
8073 | ||
e44ef4e4 | 8074 | reporter = devlink_health_reporter_get_from_cb(cb); |
35455e23 EBE |
8075 | if (!reporter) |
8076 | return -EINVAL; | |
8077 | ||
b587bdaf | 8078 | if (!reporter->ops->dump) { |
e44ef4e4 AL |
8079 | err = -EOPNOTSUPP; |
8080 | goto out; | |
b587bdaf | 8081 | } |
35455e23 | 8082 | mutex_lock(&reporter->dump_lock); |
e44ef4e4 | 8083 | if (!start) { |
e7a98105 | 8084 | err = devlink_health_do_dump(reporter, NULL, cb->extack); |
e44ef4e4 AL |
8085 | if (err) |
8086 | goto unlock; | |
8087 | cb->args[1] = reporter->dump_ts; | |
8088 | } | |
8089 | if (!reporter->dump_fmsg || cb->args[1] != reporter->dump_ts) { | |
8090 | NL_SET_ERR_MSG_MOD(cb->extack, "Dump trampled, please retry"); | |
8091 | err = -EAGAIN; | |
8092 | goto unlock; | |
8093 | } | |
35455e23 | 8094 | |
e44ef4e4 AL |
8095 | err = devlink_fmsg_dumpit(reporter->dump_fmsg, skb, cb, |
8096 | DEVLINK_CMD_HEALTH_REPORTER_DUMP_GET); | |
8097 | unlock: | |
35455e23 | 8098 | mutex_unlock(&reporter->dump_lock); |
e44ef4e4 | 8099 | out: |
b587bdaf | 8100 | devlink_health_reporter_put(reporter); |
35455e23 EBE |
8101 | return err; |
8102 | } | |
8103 | ||
8104 | static int | |
8105 | devlink_nl_cmd_health_reporter_dump_clear_doit(struct sk_buff *skb, | |
8106 | struct genl_info *info) | |
8107 | { | |
8108 | struct devlink *devlink = info->user_ptr[0]; | |
8109 | struct devlink_health_reporter *reporter; | |
8110 | ||
8111 | reporter = devlink_health_reporter_get_from_info(devlink, info); | |
8112 | if (!reporter) | |
8113 | return -EINVAL; | |
8114 | ||
b587bdaf MS |
8115 | if (!reporter->ops->dump) { |
8116 | devlink_health_reporter_put(reporter); | |
35455e23 | 8117 | return -EOPNOTSUPP; |
b587bdaf | 8118 | } |
35455e23 EBE |
8119 | |
8120 | mutex_lock(&reporter->dump_lock); | |
8121 | devlink_health_dump_clear(reporter); | |
8122 | mutex_unlock(&reporter->dump_lock); | |
b587bdaf | 8123 | devlink_health_reporter_put(reporter); |
35455e23 EBE |
8124 | return 0; |
8125 | } | |
8126 | ||
e2ce94dc JP |
8127 | static int devlink_nl_cmd_health_reporter_test_doit(struct sk_buff *skb, |
8128 | struct genl_info *info) | |
8129 | { | |
8130 | struct devlink *devlink = info->user_ptr[0]; | |
8131 | struct devlink_health_reporter *reporter; | |
8132 | int err; | |
8133 | ||
8134 | reporter = devlink_health_reporter_get_from_info(devlink, info); | |
8135 | if (!reporter) | |
8136 | return -EINVAL; | |
8137 | ||
8138 | if (!reporter->ops->test) { | |
8139 | devlink_health_reporter_put(reporter); | |
8140 | return -EOPNOTSUPP; | |
8141 | } | |
8142 | ||
8143 | err = reporter->ops->test(reporter, info->extack); | |
8144 | ||
8145 | devlink_health_reporter_put(reporter); | |
8146 | return err; | |
8147 | } | |
8148 | ||
0f420b6c | 8149 | struct devlink_stats { |
958751e0 ED |
8150 | u64_stats_t rx_bytes; |
8151 | u64_stats_t rx_packets; | |
0f420b6c IS |
8152 | struct u64_stats_sync syncp; |
8153 | }; | |
8154 | ||
1e8c6619 IS |
8155 | /** |
8156 | * struct devlink_trap_policer_item - Packet trap policer attributes. | |
8157 | * @policer: Immutable packet trap policer attributes. | |
8158 | * @rate: Rate in packets / sec. | |
8159 | * @burst: Burst size in packets. | |
8160 | * @list: trap_policer_list member. | |
8161 | * | |
8162 | * Describes packet trap policer attributes. Created by devlink during trap | |
8163 | * policer registration. | |
8164 | */ | |
8165 | struct devlink_trap_policer_item { | |
8166 | const struct devlink_trap_policer *policer; | |
8167 | u64 rate; | |
8168 | u64 burst; | |
8169 | struct list_head list; | |
8170 | }; | |
8171 | ||
0f420b6c IS |
8172 | /** |
8173 | * struct devlink_trap_group_item - Packet trap group attributes. | |
8174 | * @group: Immutable packet trap group attributes. | |
f9f54392 | 8175 | * @policer_item: Associated policer item. Can be NULL. |
0f420b6c IS |
8176 | * @list: trap_group_list member. |
8177 | * @stats: Trap group statistics. | |
8178 | * | |
8179 | * Describes packet trap group attributes. Created by devlink during trap | |
a09b37fc | 8180 | * group registration. |
0f420b6c IS |
8181 | */ |
8182 | struct devlink_trap_group_item { | |
8183 | const struct devlink_trap_group *group; | |
f9f54392 | 8184 | struct devlink_trap_policer_item *policer_item; |
0f420b6c IS |
8185 | struct list_head list; |
8186 | struct devlink_stats __percpu *stats; | |
8187 | }; | |
8188 | ||
8189 | /** | |
8190 | * struct devlink_trap_item - Packet trap attributes. | |
8191 | * @trap: Immutable packet trap attributes. | |
8192 | * @group_item: Associated group item. | |
8193 | * @list: trap_list member. | |
8194 | * @action: Trap action. | |
8195 | * @stats: Trap statistics. | |
8196 | * @priv: Driver private information. | |
8197 | * | |
8198 | * Describes both mutable and immutable packet trap attributes. Created by | |
8199 | * devlink during trap registration and used for all trap related operations. | |
8200 | */ | |
8201 | struct devlink_trap_item { | |
8202 | const struct devlink_trap *trap; | |
8203 | struct devlink_trap_group_item *group_item; | |
8204 | struct list_head list; | |
8205 | enum devlink_trap_action action; | |
8206 | struct devlink_stats __percpu *stats; | |
8207 | void *priv; | |
8208 | }; | |
8209 | ||
1e8c6619 IS |
8210 | static struct devlink_trap_policer_item * |
8211 | devlink_trap_policer_item_lookup(struct devlink *devlink, u32 id) | |
8212 | { | |
8213 | struct devlink_trap_policer_item *policer_item; | |
8214 | ||
8215 | list_for_each_entry(policer_item, &devlink->trap_policer_list, list) { | |
8216 | if (policer_item->policer->id == id) | |
8217 | return policer_item; | |
8218 | } | |
8219 | ||
8220 | return NULL; | |
8221 | } | |
8222 | ||
0f420b6c IS |
8223 | static struct devlink_trap_item * |
8224 | devlink_trap_item_lookup(struct devlink *devlink, const char *name) | |
8225 | { | |
8226 | struct devlink_trap_item *trap_item; | |
8227 | ||
8228 | list_for_each_entry(trap_item, &devlink->trap_list, list) { | |
8229 | if (!strcmp(trap_item->trap->name, name)) | |
8230 | return trap_item; | |
8231 | } | |
8232 | ||
8233 | return NULL; | |
8234 | } | |
8235 | ||
8236 | static struct devlink_trap_item * | |
8237 | devlink_trap_item_get_from_info(struct devlink *devlink, | |
8238 | struct genl_info *info) | |
8239 | { | |
8240 | struct nlattr *attr; | |
8241 | ||
8242 | if (!info->attrs[DEVLINK_ATTR_TRAP_NAME]) | |
8243 | return NULL; | |
8244 | attr = info->attrs[DEVLINK_ATTR_TRAP_NAME]; | |
8245 | ||
8246 | return devlink_trap_item_lookup(devlink, nla_data(attr)); | |
8247 | } | |
8248 | ||
8249 | static int | |
8250 | devlink_trap_action_get_from_info(struct genl_info *info, | |
8251 | enum devlink_trap_action *p_trap_action) | |
8252 | { | |
8253 | u8 val; | |
8254 | ||
8255 | val = nla_get_u8(info->attrs[DEVLINK_ATTR_TRAP_ACTION]); | |
8256 | switch (val) { | |
df561f66 GS |
8257 | case DEVLINK_TRAP_ACTION_DROP: |
8258 | case DEVLINK_TRAP_ACTION_TRAP: | |
9eefeabe | 8259 | case DEVLINK_TRAP_ACTION_MIRROR: |
0f420b6c IS |
8260 | *p_trap_action = val; |
8261 | break; | |
8262 | default: | |
8263 | return -EINVAL; | |
8264 | } | |
8265 | ||
8266 | return 0; | |
8267 | } | |
8268 | ||
8269 | static int devlink_trap_metadata_put(struct sk_buff *msg, | |
8270 | const struct devlink_trap *trap) | |
8271 | { | |
8272 | struct nlattr *attr; | |
8273 | ||
8274 | attr = nla_nest_start(msg, DEVLINK_ATTR_TRAP_METADATA); | |
8275 | if (!attr) | |
8276 | return -EMSGSIZE; | |
8277 | ||
8278 | if ((trap->metadata_cap & DEVLINK_TRAP_METADATA_TYPE_F_IN_PORT) && | |
8279 | nla_put_flag(msg, DEVLINK_ATTR_TRAP_METADATA_TYPE_IN_PORT)) | |
8280 | goto nla_put_failure; | |
85b0589e JP |
8281 | if ((trap->metadata_cap & DEVLINK_TRAP_METADATA_TYPE_F_FA_COOKIE) && |
8282 | nla_put_flag(msg, DEVLINK_ATTR_TRAP_METADATA_TYPE_FA_COOKIE)) | |
8283 | goto nla_put_failure; | |
0f420b6c IS |
8284 | |
8285 | nla_nest_end(msg, attr); | |
8286 | ||
8287 | return 0; | |
8288 | ||
8289 | nla_put_failure: | |
8290 | nla_nest_cancel(msg, attr); | |
8291 | return -EMSGSIZE; | |
8292 | } | |
8293 | ||
8294 | static void devlink_trap_stats_read(struct devlink_stats __percpu *trap_stats, | |
8295 | struct devlink_stats *stats) | |
8296 | { | |
8297 | int i; | |
8298 | ||
8299 | memset(stats, 0, sizeof(*stats)); | |
8300 | for_each_possible_cpu(i) { | |
8301 | struct devlink_stats *cpu_stats; | |
8302 | u64 rx_packets, rx_bytes; | |
8303 | unsigned int start; | |
8304 | ||
8305 | cpu_stats = per_cpu_ptr(trap_stats, i); | |
8306 | do { | |
d120d1a6 | 8307 | start = u64_stats_fetch_begin(&cpu_stats->syncp); |
958751e0 ED |
8308 | rx_packets = u64_stats_read(&cpu_stats->rx_packets); |
8309 | rx_bytes = u64_stats_read(&cpu_stats->rx_bytes); | |
d120d1a6 | 8310 | } while (u64_stats_fetch_retry(&cpu_stats->syncp, start)); |
0f420b6c | 8311 | |
958751e0 ED |
8312 | u64_stats_add(&stats->rx_packets, rx_packets); |
8313 | u64_stats_add(&stats->rx_bytes, rx_bytes); | |
0f420b6c IS |
8314 | } |
8315 | } | |
8316 | ||
ddee9dbc OM |
8317 | static int |
8318 | devlink_trap_group_stats_put(struct sk_buff *msg, | |
8319 | struct devlink_stats __percpu *trap_stats) | |
0f420b6c IS |
8320 | { |
8321 | struct devlink_stats stats; | |
8322 | struct nlattr *attr; | |
8323 | ||
8324 | devlink_trap_stats_read(trap_stats, &stats); | |
8325 | ||
8326 | attr = nla_nest_start(msg, DEVLINK_ATTR_STATS); | |
8327 | if (!attr) | |
8328 | return -EMSGSIZE; | |
8329 | ||
8330 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_STATS_RX_PACKETS, | |
958751e0 ED |
8331 | u64_stats_read(&stats.rx_packets), |
8332 | DEVLINK_ATTR_PAD)) | |
0f420b6c IS |
8333 | goto nla_put_failure; |
8334 | ||
8335 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_STATS_RX_BYTES, | |
958751e0 ED |
8336 | u64_stats_read(&stats.rx_bytes), |
8337 | DEVLINK_ATTR_PAD)) | |
0f420b6c IS |
8338 | goto nla_put_failure; |
8339 | ||
8340 | nla_nest_end(msg, attr); | |
8341 | ||
8342 | return 0; | |
8343 | ||
8344 | nla_put_failure: | |
8345 | nla_nest_cancel(msg, attr); | |
8346 | return -EMSGSIZE; | |
8347 | } | |
8348 | ||
ddee9dbc OM |
8349 | static int devlink_trap_stats_put(struct sk_buff *msg, struct devlink *devlink, |
8350 | const struct devlink_trap_item *trap_item) | |
8351 | { | |
8352 | struct devlink_stats stats; | |
8353 | struct nlattr *attr; | |
8354 | u64 drops = 0; | |
8355 | int err; | |
8356 | ||
8357 | if (devlink->ops->trap_drop_counter_get) { | |
8358 | err = devlink->ops->trap_drop_counter_get(devlink, | |
8359 | trap_item->trap, | |
8360 | &drops); | |
8361 | if (err) | |
8362 | return err; | |
8363 | } | |
8364 | ||
8365 | devlink_trap_stats_read(trap_item->stats, &stats); | |
8366 | ||
8367 | attr = nla_nest_start(msg, DEVLINK_ATTR_STATS); | |
8368 | if (!attr) | |
8369 | return -EMSGSIZE; | |
8370 | ||
8371 | if (devlink->ops->trap_drop_counter_get && | |
8372 | nla_put_u64_64bit(msg, DEVLINK_ATTR_STATS_RX_DROPPED, drops, | |
8373 | DEVLINK_ATTR_PAD)) | |
8374 | goto nla_put_failure; | |
8375 | ||
8376 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_STATS_RX_PACKETS, | |
958751e0 ED |
8377 | u64_stats_read(&stats.rx_packets), |
8378 | DEVLINK_ATTR_PAD)) | |
ddee9dbc OM |
8379 | goto nla_put_failure; |
8380 | ||
8381 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_STATS_RX_BYTES, | |
958751e0 ED |
8382 | u64_stats_read(&stats.rx_bytes), |
8383 | DEVLINK_ATTR_PAD)) | |
ddee9dbc OM |
8384 | goto nla_put_failure; |
8385 | ||
8386 | nla_nest_end(msg, attr); | |
8387 | ||
8388 | return 0; | |
8389 | ||
8390 | nla_put_failure: | |
8391 | nla_nest_cancel(msg, attr); | |
8392 | return -EMSGSIZE; | |
8393 | } | |
8394 | ||
0f420b6c IS |
8395 | static int devlink_nl_trap_fill(struct sk_buff *msg, struct devlink *devlink, |
8396 | const struct devlink_trap_item *trap_item, | |
8397 | enum devlink_command cmd, u32 portid, u32 seq, | |
8398 | int flags) | |
8399 | { | |
8400 | struct devlink_trap_group_item *group_item = trap_item->group_item; | |
8401 | void *hdr; | |
8402 | int err; | |
8403 | ||
8404 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
8405 | if (!hdr) | |
8406 | return -EMSGSIZE; | |
8407 | ||
8408 | if (devlink_nl_put_handle(msg, devlink)) | |
8409 | goto nla_put_failure; | |
8410 | ||
8411 | if (nla_put_string(msg, DEVLINK_ATTR_TRAP_GROUP_NAME, | |
8412 | group_item->group->name)) | |
8413 | goto nla_put_failure; | |
8414 | ||
8415 | if (nla_put_string(msg, DEVLINK_ATTR_TRAP_NAME, trap_item->trap->name)) | |
8416 | goto nla_put_failure; | |
8417 | ||
8418 | if (nla_put_u8(msg, DEVLINK_ATTR_TRAP_TYPE, trap_item->trap->type)) | |
8419 | goto nla_put_failure; | |
8420 | ||
8421 | if (trap_item->trap->generic && | |
8422 | nla_put_flag(msg, DEVLINK_ATTR_TRAP_GENERIC)) | |
8423 | goto nla_put_failure; | |
8424 | ||
8425 | if (nla_put_u8(msg, DEVLINK_ATTR_TRAP_ACTION, trap_item->action)) | |
8426 | goto nla_put_failure; | |
8427 | ||
8428 | err = devlink_trap_metadata_put(msg, trap_item->trap); | |
8429 | if (err) | |
8430 | goto nla_put_failure; | |
8431 | ||
ddee9dbc | 8432 | err = devlink_trap_stats_put(msg, devlink, trap_item); |
0f420b6c IS |
8433 | if (err) |
8434 | goto nla_put_failure; | |
8435 | ||
8436 | genlmsg_end(msg, hdr); | |
8437 | ||
8438 | return 0; | |
8439 | ||
8440 | nla_put_failure: | |
8441 | genlmsg_cancel(msg, hdr); | |
8442 | return -EMSGSIZE; | |
8443 | } | |
8444 | ||
8445 | static int devlink_nl_cmd_trap_get_doit(struct sk_buff *skb, | |
8446 | struct genl_info *info) | |
8447 | { | |
8448 | struct netlink_ext_ack *extack = info->extack; | |
8449 | struct devlink *devlink = info->user_ptr[0]; | |
8450 | struct devlink_trap_item *trap_item; | |
8451 | struct sk_buff *msg; | |
8452 | int err; | |
8453 | ||
8454 | if (list_empty(&devlink->trap_list)) | |
8455 | return -EOPNOTSUPP; | |
8456 | ||
8457 | trap_item = devlink_trap_item_get_from_info(devlink, info); | |
8458 | if (!trap_item) { | |
8459 | NL_SET_ERR_MSG_MOD(extack, "Device did not register this trap"); | |
8460 | return -ENOENT; | |
8461 | } | |
8462 | ||
8463 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
8464 | if (!msg) | |
8465 | return -ENOMEM; | |
8466 | ||
8467 | err = devlink_nl_trap_fill(msg, devlink, trap_item, | |
8468 | DEVLINK_CMD_TRAP_NEW, info->snd_portid, | |
8469 | info->snd_seq, 0); | |
8470 | if (err) | |
8471 | goto err_trap_fill; | |
8472 | ||
8473 | return genlmsg_reply(msg, info); | |
8474 | ||
8475 | err_trap_fill: | |
8476 | nlmsg_free(msg); | |
8477 | return err; | |
8478 | } | |
8479 | ||
8480 | static int devlink_nl_cmd_trap_get_dumpit(struct sk_buff *msg, | |
8481 | struct netlink_callback *cb) | |
8482 | { | |
8483 | struct devlink_trap_item *trap_item; | |
8484 | struct devlink *devlink; | |
8485 | int start = cb->args[0]; | |
11a861d7 | 8486 | unsigned long index; |
0f420b6c IS |
8487 | int idx = 0; |
8488 | int err; | |
8489 | ||
294c4f57 | 8490 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
7715023a | 8491 | devl_lock(devlink); |
0f420b6c IS |
8492 | list_for_each_entry(trap_item, &devlink->trap_list, list) { |
8493 | if (idx < start) { | |
8494 | idx++; | |
8495 | continue; | |
8496 | } | |
8497 | err = devlink_nl_trap_fill(msg, devlink, trap_item, | |
8498 | DEVLINK_CMD_TRAP_NEW, | |
8499 | NETLINK_CB(cb->skb).portid, | |
8500 | cb->nlh->nlmsg_seq, | |
8501 | NLM_F_MULTI); | |
8502 | if (err) { | |
7715023a | 8503 | devl_unlock(devlink); |
437ebfd9 | 8504 | devlink_put(devlink); |
0f420b6c IS |
8505 | goto out; |
8506 | } | |
8507 | idx++; | |
8508 | } | |
7715023a | 8509 | devl_unlock(devlink); |
437ebfd9 | 8510 | devlink_put(devlink); |
0f420b6c IS |
8511 | } |
8512 | out: | |
0f420b6c IS |
8513 | cb->args[0] = idx; |
8514 | return msg->len; | |
8515 | } | |
8516 | ||
8517 | static int __devlink_trap_action_set(struct devlink *devlink, | |
8518 | struct devlink_trap_item *trap_item, | |
8519 | enum devlink_trap_action trap_action, | |
8520 | struct netlink_ext_ack *extack) | |
8521 | { | |
8522 | int err; | |
8523 | ||
8524 | if (trap_item->action != trap_action && | |
8525 | trap_item->trap->type != DEVLINK_TRAP_TYPE_DROP) { | |
8526 | NL_SET_ERR_MSG_MOD(extack, "Cannot change action of non-drop traps. Skipping"); | |
8527 | return 0; | |
8528 | } | |
8529 | ||
8530 | err = devlink->ops->trap_action_set(devlink, trap_item->trap, | |
c88e11e0 | 8531 | trap_action, extack); |
0f420b6c IS |
8532 | if (err) |
8533 | return err; | |
8534 | ||
8535 | trap_item->action = trap_action; | |
8536 | ||
8537 | return 0; | |
8538 | } | |
8539 | ||
8540 | static int devlink_trap_action_set(struct devlink *devlink, | |
8541 | struct devlink_trap_item *trap_item, | |
8542 | struct genl_info *info) | |
8543 | { | |
8544 | enum devlink_trap_action trap_action; | |
8545 | int err; | |
8546 | ||
8547 | if (!info->attrs[DEVLINK_ATTR_TRAP_ACTION]) | |
8548 | return 0; | |
8549 | ||
8550 | err = devlink_trap_action_get_from_info(info, &trap_action); | |
8551 | if (err) { | |
8552 | NL_SET_ERR_MSG_MOD(info->extack, "Invalid trap action"); | |
8553 | return -EINVAL; | |
8554 | } | |
8555 | ||
8556 | return __devlink_trap_action_set(devlink, trap_item, trap_action, | |
8557 | info->extack); | |
8558 | } | |
8559 | ||
8560 | static int devlink_nl_cmd_trap_set_doit(struct sk_buff *skb, | |
8561 | struct genl_info *info) | |
8562 | { | |
8563 | struct netlink_ext_ack *extack = info->extack; | |
8564 | struct devlink *devlink = info->user_ptr[0]; | |
8565 | struct devlink_trap_item *trap_item; | |
0f420b6c IS |
8566 | |
8567 | if (list_empty(&devlink->trap_list)) | |
8568 | return -EOPNOTSUPP; | |
8569 | ||
8570 | trap_item = devlink_trap_item_get_from_info(devlink, info); | |
8571 | if (!trap_item) { | |
8572 | NL_SET_ERR_MSG_MOD(extack, "Device did not register this trap"); | |
8573 | return -ENOENT; | |
8574 | } | |
8575 | ||
8daa76a5 | 8576 | return devlink_trap_action_set(devlink, trap_item, info); |
0f420b6c IS |
8577 | } |
8578 | ||
8579 | static struct devlink_trap_group_item * | |
8580 | devlink_trap_group_item_lookup(struct devlink *devlink, const char *name) | |
8581 | { | |
8582 | struct devlink_trap_group_item *group_item; | |
8583 | ||
8584 | list_for_each_entry(group_item, &devlink->trap_group_list, list) { | |
8585 | if (!strcmp(group_item->group->name, name)) | |
8586 | return group_item; | |
8587 | } | |
8588 | ||
8589 | return NULL; | |
8590 | } | |
8591 | ||
107f1678 IS |
8592 | static struct devlink_trap_group_item * |
8593 | devlink_trap_group_item_lookup_by_id(struct devlink *devlink, u16 id) | |
8594 | { | |
8595 | struct devlink_trap_group_item *group_item; | |
8596 | ||
8597 | list_for_each_entry(group_item, &devlink->trap_group_list, list) { | |
8598 | if (group_item->group->id == id) | |
8599 | return group_item; | |
8600 | } | |
8601 | ||
8602 | return NULL; | |
8603 | } | |
8604 | ||
0f420b6c IS |
8605 | static struct devlink_trap_group_item * |
8606 | devlink_trap_group_item_get_from_info(struct devlink *devlink, | |
8607 | struct genl_info *info) | |
8608 | { | |
8609 | char *name; | |
8610 | ||
8611 | if (!info->attrs[DEVLINK_ATTR_TRAP_GROUP_NAME]) | |
8612 | return NULL; | |
8613 | name = nla_data(info->attrs[DEVLINK_ATTR_TRAP_GROUP_NAME]); | |
8614 | ||
8615 | return devlink_trap_group_item_lookup(devlink, name); | |
8616 | } | |
8617 | ||
8618 | static int | |
8619 | devlink_nl_trap_group_fill(struct sk_buff *msg, struct devlink *devlink, | |
8620 | const struct devlink_trap_group_item *group_item, | |
8621 | enum devlink_command cmd, u32 portid, u32 seq, | |
8622 | int flags) | |
8623 | { | |
8624 | void *hdr; | |
8625 | int err; | |
8626 | ||
8627 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
8628 | if (!hdr) | |
8629 | return -EMSGSIZE; | |
8630 | ||
8631 | if (devlink_nl_put_handle(msg, devlink)) | |
8632 | goto nla_put_failure; | |
8633 | ||
8634 | if (nla_put_string(msg, DEVLINK_ATTR_TRAP_GROUP_NAME, | |
8635 | group_item->group->name)) | |
8636 | goto nla_put_failure; | |
8637 | ||
8638 | if (group_item->group->generic && | |
8639 | nla_put_flag(msg, DEVLINK_ATTR_TRAP_GENERIC)) | |
8640 | goto nla_put_failure; | |
8641 | ||
f9f54392 IS |
8642 | if (group_item->policer_item && |
8643 | nla_put_u32(msg, DEVLINK_ATTR_TRAP_POLICER_ID, | |
8644 | group_item->policer_item->policer->id)) | |
8645 | goto nla_put_failure; | |
8646 | ||
ddee9dbc | 8647 | err = devlink_trap_group_stats_put(msg, group_item->stats); |
0f420b6c IS |
8648 | if (err) |
8649 | goto nla_put_failure; | |
8650 | ||
8651 | genlmsg_end(msg, hdr); | |
8652 | ||
8653 | return 0; | |
8654 | ||
8655 | nla_put_failure: | |
8656 | genlmsg_cancel(msg, hdr); | |
8657 | return -EMSGSIZE; | |
8658 | } | |
8659 | ||
8660 | static int devlink_nl_cmd_trap_group_get_doit(struct sk_buff *skb, | |
8661 | struct genl_info *info) | |
8662 | { | |
8663 | struct netlink_ext_ack *extack = info->extack; | |
8664 | struct devlink *devlink = info->user_ptr[0]; | |
8665 | struct devlink_trap_group_item *group_item; | |
8666 | struct sk_buff *msg; | |
8667 | int err; | |
8668 | ||
8669 | if (list_empty(&devlink->trap_group_list)) | |
8670 | return -EOPNOTSUPP; | |
8671 | ||
8672 | group_item = devlink_trap_group_item_get_from_info(devlink, info); | |
8673 | if (!group_item) { | |
8674 | NL_SET_ERR_MSG_MOD(extack, "Device did not register this trap group"); | |
8675 | return -ENOENT; | |
8676 | } | |
8677 | ||
8678 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
8679 | if (!msg) | |
8680 | return -ENOMEM; | |
8681 | ||
8682 | err = devlink_nl_trap_group_fill(msg, devlink, group_item, | |
8683 | DEVLINK_CMD_TRAP_GROUP_NEW, | |
8684 | info->snd_portid, info->snd_seq, 0); | |
8685 | if (err) | |
8686 | goto err_trap_group_fill; | |
8687 | ||
8688 | return genlmsg_reply(msg, info); | |
8689 | ||
8690 | err_trap_group_fill: | |
8691 | nlmsg_free(msg); | |
8692 | return err; | |
8693 | } | |
8694 | ||
8695 | static int devlink_nl_cmd_trap_group_get_dumpit(struct sk_buff *msg, | |
8696 | struct netlink_callback *cb) | |
8697 | { | |
8698 | enum devlink_command cmd = DEVLINK_CMD_TRAP_GROUP_NEW; | |
8699 | struct devlink_trap_group_item *group_item; | |
8700 | u32 portid = NETLINK_CB(cb->skb).portid; | |
8701 | struct devlink *devlink; | |
8702 | int start = cb->args[0]; | |
11a861d7 | 8703 | unsigned long index; |
0f420b6c IS |
8704 | int idx = 0; |
8705 | int err; | |
8706 | ||
294c4f57 | 8707 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
7715023a | 8708 | devl_lock(devlink); |
0f420b6c IS |
8709 | list_for_each_entry(group_item, &devlink->trap_group_list, |
8710 | list) { | |
8711 | if (idx < start) { | |
8712 | idx++; | |
8713 | continue; | |
8714 | } | |
8715 | err = devlink_nl_trap_group_fill(msg, devlink, | |
8716 | group_item, cmd, | |
8717 | portid, | |
8718 | cb->nlh->nlmsg_seq, | |
8719 | NLM_F_MULTI); | |
8720 | if (err) { | |
7715023a | 8721 | devl_unlock(devlink); |
437ebfd9 | 8722 | devlink_put(devlink); |
0f420b6c IS |
8723 | goto out; |
8724 | } | |
8725 | idx++; | |
8726 | } | |
7715023a | 8727 | devl_unlock(devlink); |
437ebfd9 | 8728 | devlink_put(devlink); |
0f420b6c IS |
8729 | } |
8730 | out: | |
0f420b6c IS |
8731 | cb->args[0] = idx; |
8732 | return msg->len; | |
8733 | } | |
8734 | ||
8735 | static int | |
8736 | __devlink_trap_group_action_set(struct devlink *devlink, | |
8737 | struct devlink_trap_group_item *group_item, | |
8738 | enum devlink_trap_action trap_action, | |
8739 | struct netlink_ext_ack *extack) | |
8740 | { | |
8741 | const char *group_name = group_item->group->name; | |
8742 | struct devlink_trap_item *trap_item; | |
8743 | int err; | |
8744 | ||
c50bf2be IC |
8745 | if (devlink->ops->trap_group_action_set) { |
8746 | err = devlink->ops->trap_group_action_set(devlink, group_item->group, | |
8747 | trap_action, extack); | |
8748 | if (err) | |
8749 | return err; | |
8750 | ||
8751 | list_for_each_entry(trap_item, &devlink->trap_list, list) { | |
8752 | if (strcmp(trap_item->group_item->group->name, group_name)) | |
8753 | continue; | |
8754 | if (trap_item->action != trap_action && | |
8755 | trap_item->trap->type != DEVLINK_TRAP_TYPE_DROP) | |
8756 | continue; | |
8757 | trap_item->action = trap_action; | |
8758 | } | |
8759 | ||
8760 | return 0; | |
8761 | } | |
8762 | ||
0f420b6c | 8763 | list_for_each_entry(trap_item, &devlink->trap_list, list) { |
107f1678 | 8764 | if (strcmp(trap_item->group_item->group->name, group_name)) |
0f420b6c IS |
8765 | continue; |
8766 | err = __devlink_trap_action_set(devlink, trap_item, | |
8767 | trap_action, extack); | |
8768 | if (err) | |
8769 | return err; | |
8770 | } | |
8771 | ||
8772 | return 0; | |
8773 | } | |
8774 | ||
8775 | static int | |
8776 | devlink_trap_group_action_set(struct devlink *devlink, | |
8777 | struct devlink_trap_group_item *group_item, | |
c064875a | 8778 | struct genl_info *info, bool *p_modified) |
0f420b6c IS |
8779 | { |
8780 | enum devlink_trap_action trap_action; | |
8781 | int err; | |
8782 | ||
8783 | if (!info->attrs[DEVLINK_ATTR_TRAP_ACTION]) | |
8784 | return 0; | |
8785 | ||
8786 | err = devlink_trap_action_get_from_info(info, &trap_action); | |
8787 | if (err) { | |
8788 | NL_SET_ERR_MSG_MOD(info->extack, "Invalid trap action"); | |
8789 | return -EINVAL; | |
8790 | } | |
8791 | ||
8792 | err = __devlink_trap_group_action_set(devlink, group_item, trap_action, | |
8793 | info->extack); | |
8794 | if (err) | |
8795 | return err; | |
8796 | ||
c064875a IS |
8797 | *p_modified = true; |
8798 | ||
8799 | return 0; | |
8800 | } | |
8801 | ||
8802 | static int devlink_trap_group_set(struct devlink *devlink, | |
8803 | struct devlink_trap_group_item *group_item, | |
8804 | struct genl_info *info) | |
8805 | { | |
8806 | struct devlink_trap_policer_item *policer_item; | |
8807 | struct netlink_ext_ack *extack = info->extack; | |
8808 | const struct devlink_trap_policer *policer; | |
8809 | struct nlattr **attrs = info->attrs; | |
8810 | int err; | |
8811 | ||
8812 | if (!attrs[DEVLINK_ATTR_TRAP_POLICER_ID]) | |
8813 | return 0; | |
8814 | ||
8815 | if (!devlink->ops->trap_group_set) | |
8816 | return -EOPNOTSUPP; | |
8817 | ||
8818 | policer_item = group_item->policer_item; | |
8819 | if (attrs[DEVLINK_ATTR_TRAP_POLICER_ID]) { | |
8820 | u32 policer_id; | |
8821 | ||
8822 | policer_id = nla_get_u32(attrs[DEVLINK_ATTR_TRAP_POLICER_ID]); | |
8823 | policer_item = devlink_trap_policer_item_lookup(devlink, | |
8824 | policer_id); | |
8825 | if (policer_id && !policer_item) { | |
8826 | NL_SET_ERR_MSG_MOD(extack, "Device did not register this trap policer"); | |
8827 | return -ENOENT; | |
8828 | } | |
8829 | } | |
8830 | policer = policer_item ? policer_item->policer : NULL; | |
8831 | ||
c88e11e0 IS |
8832 | err = devlink->ops->trap_group_set(devlink, group_item->group, policer, |
8833 | extack); | |
c064875a IS |
8834 | if (err) |
8835 | return err; | |
8836 | ||
8837 | group_item->policer_item = policer_item; | |
8838 | ||
0f420b6c IS |
8839 | return 0; |
8840 | } | |
8841 | ||
8842 | static int devlink_nl_cmd_trap_group_set_doit(struct sk_buff *skb, | |
8843 | struct genl_info *info) | |
8844 | { | |
8845 | struct netlink_ext_ack *extack = info->extack; | |
8846 | struct devlink *devlink = info->user_ptr[0]; | |
8847 | struct devlink_trap_group_item *group_item; | |
c064875a | 8848 | bool modified = false; |
0f420b6c IS |
8849 | int err; |
8850 | ||
8851 | if (list_empty(&devlink->trap_group_list)) | |
8852 | return -EOPNOTSUPP; | |
8853 | ||
8854 | group_item = devlink_trap_group_item_get_from_info(devlink, info); | |
8855 | if (!group_item) { | |
8856 | NL_SET_ERR_MSG_MOD(extack, "Device did not register this trap group"); | |
8857 | return -ENOENT; | |
8858 | } | |
8859 | ||
c064875a IS |
8860 | err = devlink_trap_group_action_set(devlink, group_item, info, |
8861 | &modified); | |
0f420b6c IS |
8862 | if (err) |
8863 | return err; | |
8864 | ||
c064875a IS |
8865 | err = devlink_trap_group_set(devlink, group_item, info); |
8866 | if (err) | |
8867 | goto err_trap_group_set; | |
8868 | ||
0f420b6c | 8869 | return 0; |
c064875a IS |
8870 | |
8871 | err_trap_group_set: | |
8872 | if (modified) | |
8873 | NL_SET_ERR_MSG_MOD(extack, "Trap group set failed, but some changes were committed already"); | |
8874 | return err; | |
0f420b6c IS |
8875 | } |
8876 | ||
1e8c6619 IS |
8877 | static struct devlink_trap_policer_item * |
8878 | devlink_trap_policer_item_get_from_info(struct devlink *devlink, | |
8879 | struct genl_info *info) | |
8880 | { | |
8881 | u32 id; | |
8882 | ||
8883 | if (!info->attrs[DEVLINK_ATTR_TRAP_POLICER_ID]) | |
8884 | return NULL; | |
8885 | id = nla_get_u32(info->attrs[DEVLINK_ATTR_TRAP_POLICER_ID]); | |
8886 | ||
8887 | return devlink_trap_policer_item_lookup(devlink, id); | |
8888 | } | |
8889 | ||
8890 | static int | |
8891 | devlink_trap_policer_stats_put(struct sk_buff *msg, struct devlink *devlink, | |
8892 | const struct devlink_trap_policer *policer) | |
8893 | { | |
8894 | struct nlattr *attr; | |
8895 | u64 drops; | |
8896 | int err; | |
8897 | ||
8898 | if (!devlink->ops->trap_policer_counter_get) | |
8899 | return 0; | |
8900 | ||
8901 | err = devlink->ops->trap_policer_counter_get(devlink, policer, &drops); | |
8902 | if (err) | |
8903 | return err; | |
8904 | ||
8905 | attr = nla_nest_start(msg, DEVLINK_ATTR_STATS); | |
8906 | if (!attr) | |
8907 | return -EMSGSIZE; | |
8908 | ||
8909 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_STATS_RX_DROPPED, drops, | |
8910 | DEVLINK_ATTR_PAD)) | |
8911 | goto nla_put_failure; | |
8912 | ||
8913 | nla_nest_end(msg, attr); | |
8914 | ||
8915 | return 0; | |
8916 | ||
8917 | nla_put_failure: | |
8918 | nla_nest_cancel(msg, attr); | |
8919 | return -EMSGSIZE; | |
8920 | } | |
8921 | ||
8922 | static int | |
8923 | devlink_nl_trap_policer_fill(struct sk_buff *msg, struct devlink *devlink, | |
8924 | const struct devlink_trap_policer_item *policer_item, | |
8925 | enum devlink_command cmd, u32 portid, u32 seq, | |
8926 | int flags) | |
8927 | { | |
8928 | void *hdr; | |
8929 | int err; | |
8930 | ||
8931 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
8932 | if (!hdr) | |
8933 | return -EMSGSIZE; | |
8934 | ||
8935 | if (devlink_nl_put_handle(msg, devlink)) | |
8936 | goto nla_put_failure; | |
8937 | ||
8938 | if (nla_put_u32(msg, DEVLINK_ATTR_TRAP_POLICER_ID, | |
8939 | policer_item->policer->id)) | |
8940 | goto nla_put_failure; | |
8941 | ||
8942 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_TRAP_POLICER_RATE, | |
8943 | policer_item->rate, DEVLINK_ATTR_PAD)) | |
8944 | goto nla_put_failure; | |
8945 | ||
8946 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_TRAP_POLICER_BURST, | |
8947 | policer_item->burst, DEVLINK_ATTR_PAD)) | |
8948 | goto nla_put_failure; | |
8949 | ||
8950 | err = devlink_trap_policer_stats_put(msg, devlink, | |
8951 | policer_item->policer); | |
8952 | if (err) | |
8953 | goto nla_put_failure; | |
8954 | ||
8955 | genlmsg_end(msg, hdr); | |
8956 | ||
8957 | return 0; | |
8958 | ||
8959 | nla_put_failure: | |
8960 | genlmsg_cancel(msg, hdr); | |
8961 | return -EMSGSIZE; | |
8962 | } | |
8963 | ||
8964 | static int devlink_nl_cmd_trap_policer_get_doit(struct sk_buff *skb, | |
8965 | struct genl_info *info) | |
8966 | { | |
8967 | struct devlink_trap_policer_item *policer_item; | |
8968 | struct netlink_ext_ack *extack = info->extack; | |
8969 | struct devlink *devlink = info->user_ptr[0]; | |
8970 | struct sk_buff *msg; | |
8971 | int err; | |
8972 | ||
8973 | if (list_empty(&devlink->trap_policer_list)) | |
8974 | return -EOPNOTSUPP; | |
8975 | ||
8976 | policer_item = devlink_trap_policer_item_get_from_info(devlink, info); | |
8977 | if (!policer_item) { | |
8978 | NL_SET_ERR_MSG_MOD(extack, "Device did not register this trap policer"); | |
8979 | return -ENOENT; | |
8980 | } | |
8981 | ||
8982 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
8983 | if (!msg) | |
8984 | return -ENOMEM; | |
8985 | ||
8986 | err = devlink_nl_trap_policer_fill(msg, devlink, policer_item, | |
8987 | DEVLINK_CMD_TRAP_POLICER_NEW, | |
8988 | info->snd_portid, info->snd_seq, 0); | |
8989 | if (err) | |
8990 | goto err_trap_policer_fill; | |
8991 | ||
8992 | return genlmsg_reply(msg, info); | |
8993 | ||
8994 | err_trap_policer_fill: | |
8995 | nlmsg_free(msg); | |
8996 | return err; | |
8997 | } | |
8998 | ||
8999 | static int devlink_nl_cmd_trap_policer_get_dumpit(struct sk_buff *msg, | |
9000 | struct netlink_callback *cb) | |
9001 | { | |
9002 | enum devlink_command cmd = DEVLINK_CMD_TRAP_POLICER_NEW; | |
9003 | struct devlink_trap_policer_item *policer_item; | |
9004 | u32 portid = NETLINK_CB(cb->skb).portid; | |
9005 | struct devlink *devlink; | |
9006 | int start = cb->args[0]; | |
11a861d7 | 9007 | unsigned long index; |
1e8c6619 IS |
9008 | int idx = 0; |
9009 | int err; | |
9010 | ||
294c4f57 | 9011 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
7715023a | 9012 | devl_lock(devlink); |
1e8c6619 IS |
9013 | list_for_each_entry(policer_item, &devlink->trap_policer_list, |
9014 | list) { | |
9015 | if (idx < start) { | |
9016 | idx++; | |
9017 | continue; | |
9018 | } | |
9019 | err = devlink_nl_trap_policer_fill(msg, devlink, | |
9020 | policer_item, cmd, | |
9021 | portid, | |
9022 | cb->nlh->nlmsg_seq, | |
9023 | NLM_F_MULTI); | |
9024 | if (err) { | |
7715023a | 9025 | devl_unlock(devlink); |
437ebfd9 | 9026 | devlink_put(devlink); |
1e8c6619 IS |
9027 | goto out; |
9028 | } | |
9029 | idx++; | |
9030 | } | |
7715023a | 9031 | devl_unlock(devlink); |
437ebfd9 | 9032 | devlink_put(devlink); |
1e8c6619 IS |
9033 | } |
9034 | out: | |
1e8c6619 IS |
9035 | cb->args[0] = idx; |
9036 | return msg->len; | |
9037 | } | |
9038 | ||
9039 | static int | |
9040 | devlink_trap_policer_set(struct devlink *devlink, | |
9041 | struct devlink_trap_policer_item *policer_item, | |
9042 | struct genl_info *info) | |
9043 | { | |
9044 | struct netlink_ext_ack *extack = info->extack; | |
9045 | struct nlattr **attrs = info->attrs; | |
9046 | u64 rate, burst; | |
9047 | int err; | |
9048 | ||
9049 | rate = policer_item->rate; | |
9050 | burst = policer_item->burst; | |
9051 | ||
9052 | if (attrs[DEVLINK_ATTR_TRAP_POLICER_RATE]) | |
9053 | rate = nla_get_u64(attrs[DEVLINK_ATTR_TRAP_POLICER_RATE]); | |
9054 | ||
9055 | if (attrs[DEVLINK_ATTR_TRAP_POLICER_BURST]) | |
9056 | burst = nla_get_u64(attrs[DEVLINK_ATTR_TRAP_POLICER_BURST]); | |
9057 | ||
9058 | if (rate < policer_item->policer->min_rate) { | |
9059 | NL_SET_ERR_MSG_MOD(extack, "Policer rate lower than limit"); | |
9060 | return -EINVAL; | |
9061 | } | |
9062 | ||
9063 | if (rate > policer_item->policer->max_rate) { | |
9064 | NL_SET_ERR_MSG_MOD(extack, "Policer rate higher than limit"); | |
9065 | return -EINVAL; | |
9066 | } | |
9067 | ||
9068 | if (burst < policer_item->policer->min_burst) { | |
9069 | NL_SET_ERR_MSG_MOD(extack, "Policer burst size lower than limit"); | |
9070 | return -EINVAL; | |
9071 | } | |
9072 | ||
9073 | if (burst > policer_item->policer->max_burst) { | |
9074 | NL_SET_ERR_MSG_MOD(extack, "Policer burst size higher than limit"); | |
9075 | return -EINVAL; | |
9076 | } | |
9077 | ||
9078 | err = devlink->ops->trap_policer_set(devlink, policer_item->policer, | |
9079 | rate, burst, info->extack); | |
9080 | if (err) | |
9081 | return err; | |
9082 | ||
9083 | policer_item->rate = rate; | |
9084 | policer_item->burst = burst; | |
9085 | ||
9086 | return 0; | |
9087 | } | |
9088 | ||
9089 | static int devlink_nl_cmd_trap_policer_set_doit(struct sk_buff *skb, | |
9090 | struct genl_info *info) | |
9091 | { | |
9092 | struct devlink_trap_policer_item *policer_item; | |
9093 | struct netlink_ext_ack *extack = info->extack; | |
9094 | struct devlink *devlink = info->user_ptr[0]; | |
9095 | ||
9096 | if (list_empty(&devlink->trap_policer_list)) | |
9097 | return -EOPNOTSUPP; | |
9098 | ||
9099 | if (!devlink->ops->trap_policer_set) | |
9100 | return -EOPNOTSUPP; | |
9101 | ||
9102 | policer_item = devlink_trap_policer_item_get_from_info(devlink, info); | |
9103 | if (!policer_item) { | |
9104 | NL_SET_ERR_MSG_MOD(extack, "Device did not register this trap policer"); | |
9105 | return -ENOENT; | |
9106 | } | |
9107 | ||
9108 | return devlink_trap_policer_set(devlink, policer_item, info); | |
9109 | } | |
9110 | ||
bfcd3a46 | 9111 | static const struct nla_policy devlink_nl_policy[DEVLINK_ATTR_MAX + 1] = { |
1e8c6619 IS |
9112 | [DEVLINK_ATTR_UNSPEC] = { .strict_start_type = |
9113 | DEVLINK_ATTR_TRAP_POLICER_ID }, | |
bfcd3a46 JP |
9114 | [DEVLINK_ATTR_BUS_NAME] = { .type = NLA_NUL_STRING }, |
9115 | [DEVLINK_ATTR_DEV_NAME] = { .type = NLA_NUL_STRING }, | |
9116 | [DEVLINK_ATTR_PORT_INDEX] = { .type = NLA_U32 }, | |
c49a9440 PP |
9117 | [DEVLINK_ATTR_PORT_TYPE] = NLA_POLICY_RANGE(NLA_U16, DEVLINK_PORT_TYPE_AUTO, |
9118 | DEVLINK_PORT_TYPE_IB), | |
bfcd3a46 | 9119 | [DEVLINK_ATTR_PORT_SPLIT_COUNT] = { .type = NLA_U32 }, |
bf797471 JP |
9120 | [DEVLINK_ATTR_SB_INDEX] = { .type = NLA_U32 }, |
9121 | [DEVLINK_ATTR_SB_POOL_INDEX] = { .type = NLA_U16 }, | |
9122 | [DEVLINK_ATTR_SB_POOL_TYPE] = { .type = NLA_U8 }, | |
9123 | [DEVLINK_ATTR_SB_POOL_SIZE] = { .type = NLA_U32 }, | |
9124 | [DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE] = { .type = NLA_U8 }, | |
9125 | [DEVLINK_ATTR_SB_THRESHOLD] = { .type = NLA_U32 }, | |
9126 | [DEVLINK_ATTR_SB_TC_INDEX] = { .type = NLA_U16 }, | |
ba356c90 PP |
9127 | [DEVLINK_ATTR_ESWITCH_MODE] = NLA_POLICY_RANGE(NLA_U16, DEVLINK_ESWITCH_MODE_LEGACY, |
9128 | DEVLINK_ESWITCH_MODE_SWITCHDEV), | |
59bfde01 | 9129 | [DEVLINK_ATTR_ESWITCH_INLINE_MODE] = { .type = NLA_U8 }, |
f43e9b06 | 9130 | [DEVLINK_ATTR_ESWITCH_ENCAP_MODE] = { .type = NLA_U8 }, |
1555d204 AS |
9131 | [DEVLINK_ATTR_DPIPE_TABLE_NAME] = { .type = NLA_NUL_STRING }, |
9132 | [DEVLINK_ATTR_DPIPE_TABLE_COUNTERS_ENABLED] = { .type = NLA_U8 }, | |
d9f9b9a4 AS |
9133 | [DEVLINK_ATTR_RESOURCE_ID] = { .type = NLA_U64}, |
9134 | [DEVLINK_ATTR_RESOURCE_SIZE] = { .type = NLA_U64}, | |
e3b7ca18 MS |
9135 | [DEVLINK_ATTR_PARAM_NAME] = { .type = NLA_NUL_STRING }, |
9136 | [DEVLINK_ATTR_PARAM_TYPE] = { .type = NLA_U8 }, | |
9137 | [DEVLINK_ATTR_PARAM_VALUE_CMODE] = { .type = NLA_U8 }, | |
d8db7ea5 | 9138 | [DEVLINK_ATTR_REGION_NAME] = { .type = NLA_NUL_STRING }, |
866319bb | 9139 | [DEVLINK_ATTR_REGION_SNAPSHOT_ID] = { .type = NLA_U32 }, |
ff3b63b8 JK |
9140 | [DEVLINK_ATTR_REGION_CHUNK_ADDR] = { .type = NLA_U64 }, |
9141 | [DEVLINK_ATTR_REGION_CHUNK_LEN] = { .type = NLA_U64 }, | |
7afe335a | 9142 | [DEVLINK_ATTR_HEALTH_REPORTER_NAME] = { .type = NLA_NUL_STRING }, |
a1e55ec0 EBE |
9143 | [DEVLINK_ATTR_HEALTH_REPORTER_GRACEFUL_PERIOD] = { .type = NLA_U64 }, |
9144 | [DEVLINK_ATTR_HEALTH_REPORTER_AUTO_RECOVER] = { .type = NLA_U8 }, | |
76726ccb JK |
9145 | [DEVLINK_ATTR_FLASH_UPDATE_FILE_NAME] = { .type = NLA_NUL_STRING }, |
9146 | [DEVLINK_ATTR_FLASH_UPDATE_COMPONENT] = { .type = NLA_NUL_STRING }, | |
5d5b4128 JK |
9147 | [DEVLINK_ATTR_FLASH_UPDATE_OVERWRITE_MASK] = |
9148 | NLA_POLICY_BITFIELD32(DEVLINK_SUPPORTED_FLASH_OVERWRITE_SECTIONS), | |
0f420b6c IS |
9149 | [DEVLINK_ATTR_TRAP_NAME] = { .type = NLA_NUL_STRING }, |
9150 | [DEVLINK_ATTR_TRAP_ACTION] = { .type = NLA_U8 }, | |
9151 | [DEVLINK_ATTR_TRAP_GROUP_NAME] = { .type = NLA_NUL_STRING }, | |
070c63f2 JP |
9152 | [DEVLINK_ATTR_NETNS_PID] = { .type = NLA_U32 }, |
9153 | [DEVLINK_ATTR_NETNS_FD] = { .type = NLA_U32 }, | |
9154 | [DEVLINK_ATTR_NETNS_ID] = { .type = NLA_U32 }, | |
48bb52c8 | 9155 | [DEVLINK_ATTR_HEALTH_REPORTER_AUTO_DUMP] = { .type = NLA_U8 }, |
1e8c6619 IS |
9156 | [DEVLINK_ATTR_TRAP_POLICER_ID] = { .type = NLA_U32 }, |
9157 | [DEVLINK_ATTR_TRAP_POLICER_RATE] = { .type = NLA_U64 }, | |
9158 | [DEVLINK_ATTR_TRAP_POLICER_BURST] = { .type = NLA_U64 }, | |
a1e8ae90 | 9159 | [DEVLINK_ATTR_PORT_FUNCTION] = { .type = NLA_NESTED }, |
ccdf0721 MS |
9160 | [DEVLINK_ATTR_RELOAD_ACTION] = NLA_POLICY_RANGE(NLA_U8, DEVLINK_RELOAD_ACTION_DRIVER_REINIT, |
9161 | DEVLINK_RELOAD_ACTION_MAX), | |
dc64cc7c | 9162 | [DEVLINK_ATTR_RELOAD_LIMITS] = NLA_POLICY_BITFIELD32(DEVLINK_RELOAD_LIMITS_VALID_MASK), |
cd76dcd6 PP |
9163 | [DEVLINK_ATTR_PORT_FLAVOUR] = { .type = NLA_U16 }, |
9164 | [DEVLINK_ATTR_PORT_PCI_PF_NUMBER] = { .type = NLA_U16 }, | |
9165 | [DEVLINK_ATTR_PORT_PCI_SF_NUMBER] = { .type = NLA_U32 }, | |
9166 | [DEVLINK_ATTR_PORT_CONTROLLER_NUMBER] = { .type = NLA_U32 }, | |
4677efc4 | 9167 | [DEVLINK_ATTR_RATE_TYPE] = { .type = NLA_U16 }, |
1897db2e DL |
9168 | [DEVLINK_ATTR_RATE_TX_SHARE] = { .type = NLA_U64 }, |
9169 | [DEVLINK_ATTR_RATE_TX_MAX] = { .type = NLA_U64 }, | |
a8ecb93e | 9170 | [DEVLINK_ATTR_RATE_NODE_NAME] = { .type = NLA_NUL_STRING }, |
d7555984 | 9171 | [DEVLINK_ATTR_RATE_PARENT_NODE_NAME] = { .type = NLA_NUL_STRING }, |
c246f9b5 | 9172 | [DEVLINK_ATTR_LINECARD_INDEX] = { .type = NLA_U32 }, |
fcdc8ce2 | 9173 | [DEVLINK_ATTR_LINECARD_TYPE] = { .type = NLA_NUL_STRING }, |
08f588fa | 9174 | [DEVLINK_ATTR_SELFTESTS] = { .type = NLA_NESTED }, |
bfcd3a46 JP |
9175 | }; |
9176 | ||
66a9b928 | 9177 | static const struct genl_small_ops devlink_nl_ops[] = { |
bfcd3a46 JP |
9178 | { |
9179 | .cmd = DEVLINK_CMD_GET, | |
ef6243ac | 9180 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bfcd3a46 JP |
9181 | .doit = devlink_nl_cmd_get_doit, |
9182 | .dumpit = devlink_nl_cmd_get_dumpit, | |
bfcd3a46 JP |
9183 | /* can be retrieved by unprivileged users */ |
9184 | }, | |
9185 | { | |
9186 | .cmd = DEVLINK_CMD_PORT_GET, | |
ef6243ac | 9187 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bfcd3a46 JP |
9188 | .doit = devlink_nl_cmd_port_get_doit, |
9189 | .dumpit = devlink_nl_cmd_port_get_dumpit, | |
bfcd3a46 JP |
9190 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, |
9191 | /* can be retrieved by unprivileged users */ | |
9192 | }, | |
9193 | { | |
9194 | .cmd = DEVLINK_CMD_PORT_SET, | |
ef6243ac | 9195 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bfcd3a46 | 9196 | .doit = devlink_nl_cmd_port_set_doit, |
bfcd3a46 JP |
9197 | .flags = GENL_ADMIN_PERM, |
9198 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, | |
9199 | }, | |
4677efc4 DL |
9200 | { |
9201 | .cmd = DEVLINK_CMD_RATE_GET, | |
9202 | .doit = devlink_nl_cmd_rate_get_doit, | |
9203 | .dumpit = devlink_nl_cmd_rate_get_dumpit, | |
9204 | .internal_flags = DEVLINK_NL_FLAG_NEED_RATE, | |
9205 | /* can be retrieved by unprivileged users */ | |
9206 | }, | |
1897db2e DL |
9207 | { |
9208 | .cmd = DEVLINK_CMD_RATE_SET, | |
9209 | .doit = devlink_nl_cmd_rate_set_doit, | |
9210 | .flags = GENL_ADMIN_PERM, | |
9211 | .internal_flags = DEVLINK_NL_FLAG_NEED_RATE, | |
9212 | }, | |
a8ecb93e DL |
9213 | { |
9214 | .cmd = DEVLINK_CMD_RATE_NEW, | |
9215 | .doit = devlink_nl_cmd_rate_new_doit, | |
9216 | .flags = GENL_ADMIN_PERM, | |
9217 | }, | |
9218 | { | |
9219 | .cmd = DEVLINK_CMD_RATE_DEL, | |
9220 | .doit = devlink_nl_cmd_rate_del_doit, | |
9221 | .flags = GENL_ADMIN_PERM, | |
9222 | .internal_flags = DEVLINK_NL_FLAG_NEED_RATE_NODE, | |
9223 | }, | |
bfcd3a46 JP |
9224 | { |
9225 | .cmd = DEVLINK_CMD_PORT_SPLIT, | |
ef6243ac | 9226 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bfcd3a46 | 9227 | .doit = devlink_nl_cmd_port_split_doit, |
bfcd3a46 | 9228 | .flags = GENL_ADMIN_PERM, |
706217c1 | 9229 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, |
bfcd3a46 JP |
9230 | }, |
9231 | { | |
9232 | .cmd = DEVLINK_CMD_PORT_UNSPLIT, | |
ef6243ac | 9233 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bfcd3a46 | 9234 | .doit = devlink_nl_cmd_port_unsplit_doit, |
bfcd3a46 | 9235 | .flags = GENL_ADMIN_PERM, |
706217c1 | 9236 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, |
bfcd3a46 | 9237 | }, |
cd76dcd6 PP |
9238 | { |
9239 | .cmd = DEVLINK_CMD_PORT_NEW, | |
9240 | .doit = devlink_nl_cmd_port_new_doit, | |
9241 | .flags = GENL_ADMIN_PERM, | |
cd76dcd6 PP |
9242 | }, |
9243 | { | |
9244 | .cmd = DEVLINK_CMD_PORT_DEL, | |
9245 | .doit = devlink_nl_cmd_port_del_doit, | |
9246 | .flags = GENL_ADMIN_PERM, | |
cd76dcd6 | 9247 | }, |
c246f9b5 JP |
9248 | { |
9249 | .cmd = DEVLINK_CMD_LINECARD_GET, | |
9250 | .doit = devlink_nl_cmd_linecard_get_doit, | |
9251 | .dumpit = devlink_nl_cmd_linecard_get_dumpit, | |
9252 | .internal_flags = DEVLINK_NL_FLAG_NEED_LINECARD, | |
9253 | /* can be retrieved by unprivileged users */ | |
9254 | }, | |
fcdc8ce2 JP |
9255 | { |
9256 | .cmd = DEVLINK_CMD_LINECARD_SET, | |
9257 | .doit = devlink_nl_cmd_linecard_set_doit, | |
9258 | .flags = GENL_ADMIN_PERM, | |
9259 | .internal_flags = DEVLINK_NL_FLAG_NEED_LINECARD, | |
9260 | }, | |
bf797471 JP |
9261 | { |
9262 | .cmd = DEVLINK_CMD_SB_GET, | |
ef6243ac | 9263 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bf797471 JP |
9264 | .doit = devlink_nl_cmd_sb_get_doit, |
9265 | .dumpit = devlink_nl_cmd_sb_get_dumpit, | |
bf797471 JP |
9266 | /* can be retrieved by unprivileged users */ |
9267 | }, | |
9268 | { | |
9269 | .cmd = DEVLINK_CMD_SB_POOL_GET, | |
ef6243ac | 9270 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bf797471 JP |
9271 | .doit = devlink_nl_cmd_sb_pool_get_doit, |
9272 | .dumpit = devlink_nl_cmd_sb_pool_get_dumpit, | |
bf797471 JP |
9273 | /* can be retrieved by unprivileged users */ |
9274 | }, | |
9275 | { | |
9276 | .cmd = DEVLINK_CMD_SB_POOL_SET, | |
ef6243ac | 9277 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bf797471 | 9278 | .doit = devlink_nl_cmd_sb_pool_set_doit, |
bf797471 | 9279 | .flags = GENL_ADMIN_PERM, |
bf797471 JP |
9280 | }, |
9281 | { | |
9282 | .cmd = DEVLINK_CMD_SB_PORT_POOL_GET, | |
ef6243ac | 9283 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bf797471 JP |
9284 | .doit = devlink_nl_cmd_sb_port_pool_get_doit, |
9285 | .dumpit = devlink_nl_cmd_sb_port_pool_get_dumpit, | |
637989b5 | 9286 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, |
bf797471 JP |
9287 | /* can be retrieved by unprivileged users */ |
9288 | }, | |
9289 | { | |
9290 | .cmd = DEVLINK_CMD_SB_PORT_POOL_SET, | |
ef6243ac | 9291 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bf797471 | 9292 | .doit = devlink_nl_cmd_sb_port_pool_set_doit, |
bf797471 | 9293 | .flags = GENL_ADMIN_PERM, |
637989b5 | 9294 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, |
bf797471 JP |
9295 | }, |
9296 | { | |
9297 | .cmd = DEVLINK_CMD_SB_TC_POOL_BIND_GET, | |
ef6243ac | 9298 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bf797471 JP |
9299 | .doit = devlink_nl_cmd_sb_tc_pool_bind_get_doit, |
9300 | .dumpit = devlink_nl_cmd_sb_tc_pool_bind_get_dumpit, | |
637989b5 | 9301 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, |
bf797471 JP |
9302 | /* can be retrieved by unprivileged users */ |
9303 | }, | |
9304 | { | |
9305 | .cmd = DEVLINK_CMD_SB_TC_POOL_BIND_SET, | |
ef6243ac | 9306 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bf797471 | 9307 | .doit = devlink_nl_cmd_sb_tc_pool_bind_set_doit, |
bf797471 | 9308 | .flags = GENL_ADMIN_PERM, |
637989b5 | 9309 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, |
bf797471 | 9310 | }, |
df38dafd JP |
9311 | { |
9312 | .cmd = DEVLINK_CMD_SB_OCC_SNAPSHOT, | |
ef6243ac | 9313 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
df38dafd | 9314 | .doit = devlink_nl_cmd_sb_occ_snapshot_doit, |
df38dafd | 9315 | .flags = GENL_ADMIN_PERM, |
df38dafd JP |
9316 | }, |
9317 | { | |
9318 | .cmd = DEVLINK_CMD_SB_OCC_MAX_CLEAR, | |
ef6243ac | 9319 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
df38dafd | 9320 | .doit = devlink_nl_cmd_sb_occ_max_clear_doit, |
df38dafd | 9321 | .flags = GENL_ADMIN_PERM, |
df38dafd | 9322 | }, |
08f4b591 | 9323 | { |
adf200f3 | 9324 | .cmd = DEVLINK_CMD_ESWITCH_GET, |
ef6243ac | 9325 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
adf200f3 | 9326 | .doit = devlink_nl_cmd_eswitch_get_doit, |
08f4b591 | 9327 | .flags = GENL_ADMIN_PERM, |
08f4b591 OG |
9328 | }, |
9329 | { | |
adf200f3 | 9330 | .cmd = DEVLINK_CMD_ESWITCH_SET, |
ef6243ac | 9331 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
adf200f3 | 9332 | .doit = devlink_nl_cmd_eswitch_set_doit, |
08f4b591 | 9333 | .flags = GENL_ADMIN_PERM, |
08f4b591 | 9334 | }, |
1555d204 AS |
9335 | { |
9336 | .cmd = DEVLINK_CMD_DPIPE_TABLE_GET, | |
ef6243ac | 9337 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
1555d204 | 9338 | .doit = devlink_nl_cmd_dpipe_table_get, |
67ae686b | 9339 | /* can be retrieved by unprivileged users */ |
1555d204 AS |
9340 | }, |
9341 | { | |
9342 | .cmd = DEVLINK_CMD_DPIPE_ENTRIES_GET, | |
ef6243ac | 9343 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
1555d204 | 9344 | .doit = devlink_nl_cmd_dpipe_entries_get, |
67ae686b | 9345 | /* can be retrieved by unprivileged users */ |
1555d204 AS |
9346 | }, |
9347 | { | |
9348 | .cmd = DEVLINK_CMD_DPIPE_HEADERS_GET, | |
ef6243ac | 9349 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
1555d204 | 9350 | .doit = devlink_nl_cmd_dpipe_headers_get, |
67ae686b | 9351 | /* can be retrieved by unprivileged users */ |
1555d204 AS |
9352 | }, |
9353 | { | |
9354 | .cmd = DEVLINK_CMD_DPIPE_TABLE_COUNTERS_SET, | |
ef6243ac | 9355 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
1555d204 | 9356 | .doit = devlink_nl_cmd_dpipe_table_counters_set, |
1555d204 | 9357 | .flags = GENL_ADMIN_PERM, |
1555d204 | 9358 | }, |
d9f9b9a4 AS |
9359 | { |
9360 | .cmd = DEVLINK_CMD_RESOURCE_SET, | |
ef6243ac | 9361 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
d9f9b9a4 | 9362 | .doit = devlink_nl_cmd_resource_set, |
d9f9b9a4 | 9363 | .flags = GENL_ADMIN_PERM, |
d9f9b9a4 AS |
9364 | }, |
9365 | { | |
9366 | .cmd = DEVLINK_CMD_RESOURCE_DUMP, | |
ef6243ac | 9367 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
d9f9b9a4 | 9368 | .doit = devlink_nl_cmd_resource_dump, |
67ae686b | 9369 | /* can be retrieved by unprivileged users */ |
d9f9b9a4 | 9370 | }, |
2d8dc5bb AS |
9371 | { |
9372 | .cmd = DEVLINK_CMD_RELOAD, | |
ef6243ac | 9373 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
2d8dc5bb | 9374 | .doit = devlink_nl_cmd_reload, |
2d8dc5bb | 9375 | .flags = GENL_ADMIN_PERM, |
2d8dc5bb | 9376 | }, |
45f05def MS |
9377 | { |
9378 | .cmd = DEVLINK_CMD_PARAM_GET, | |
ef6243ac | 9379 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
45f05def MS |
9380 | .doit = devlink_nl_cmd_param_get_doit, |
9381 | .dumpit = devlink_nl_cmd_param_get_dumpit, | |
45f05def MS |
9382 | /* can be retrieved by unprivileged users */ |
9383 | }, | |
e3b7ca18 MS |
9384 | { |
9385 | .cmd = DEVLINK_CMD_PARAM_SET, | |
ef6243ac | 9386 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
e3b7ca18 | 9387 | .doit = devlink_nl_cmd_param_set_doit, |
e3b7ca18 | 9388 | .flags = GENL_ADMIN_PERM, |
e3b7ca18 | 9389 | }, |
f4601dee VV |
9390 | { |
9391 | .cmd = DEVLINK_CMD_PORT_PARAM_GET, | |
ef6243ac | 9392 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
f4601dee VV |
9393 | .doit = devlink_nl_cmd_port_param_get_doit, |
9394 | .dumpit = devlink_nl_cmd_port_param_get_dumpit, | |
f4601dee VV |
9395 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, |
9396 | /* can be retrieved by unprivileged users */ | |
9397 | }, | |
9c54873b VV |
9398 | { |
9399 | .cmd = DEVLINK_CMD_PORT_PARAM_SET, | |
ef6243ac | 9400 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
9c54873b | 9401 | .doit = devlink_nl_cmd_port_param_set_doit, |
9c54873b VV |
9402 | .flags = GENL_ADMIN_PERM, |
9403 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, | |
9404 | }, | |
d8db7ea5 AV |
9405 | { |
9406 | .cmd = DEVLINK_CMD_REGION_GET, | |
ef6243ac | 9407 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
d8db7ea5 AV |
9408 | .doit = devlink_nl_cmd_region_get_doit, |
9409 | .dumpit = devlink_nl_cmd_region_get_dumpit, | |
d8db7ea5 | 9410 | .flags = GENL_ADMIN_PERM, |
d8db7ea5 | 9411 | }, |
b9a17abf JK |
9412 | { |
9413 | .cmd = DEVLINK_CMD_REGION_NEW, | |
9414 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, | |
9415 | .doit = devlink_nl_cmd_region_new, | |
9416 | .flags = GENL_ADMIN_PERM, | |
b9a17abf | 9417 | }, |
866319bb AV |
9418 | { |
9419 | .cmd = DEVLINK_CMD_REGION_DEL, | |
ef6243ac | 9420 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
866319bb | 9421 | .doit = devlink_nl_cmd_region_del, |
866319bb | 9422 | .flags = GENL_ADMIN_PERM, |
866319bb | 9423 | }, |
4e54795a AV |
9424 | { |
9425 | .cmd = DEVLINK_CMD_REGION_READ, | |
ee85da53 JP |
9426 | .validate = GENL_DONT_VALIDATE_STRICT | |
9427 | GENL_DONT_VALIDATE_DUMP_STRICT, | |
4e54795a | 9428 | .dumpit = devlink_nl_cmd_region_read_dumpit, |
4e54795a | 9429 | .flags = GENL_ADMIN_PERM, |
4e54795a | 9430 | }, |
f9cf2288 JK |
9431 | { |
9432 | .cmd = DEVLINK_CMD_INFO_GET, | |
ef6243ac | 9433 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
f9cf2288 JK |
9434 | .doit = devlink_nl_cmd_info_get_doit, |
9435 | .dumpit = devlink_nl_cmd_info_get_dumpit, | |
f9cf2288 JK |
9436 | /* can be retrieved by unprivileged users */ |
9437 | }, | |
7afe335a EBE |
9438 | { |
9439 | .cmd = DEVLINK_CMD_HEALTH_REPORTER_GET, | |
ef6243ac | 9440 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
7afe335a EBE |
9441 | .doit = devlink_nl_cmd_health_reporter_get_doit, |
9442 | .dumpit = devlink_nl_cmd_health_reporter_get_dumpit, | |
c90005b5 | 9443 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT, |
7afe335a EBE |
9444 | /* can be retrieved by unprivileged users */ |
9445 | }, | |
a1e55ec0 EBE |
9446 | { |
9447 | .cmd = DEVLINK_CMD_HEALTH_REPORTER_SET, | |
ef6243ac | 9448 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
a1e55ec0 | 9449 | .doit = devlink_nl_cmd_health_reporter_set_doit, |
a1e55ec0 | 9450 | .flags = GENL_ADMIN_PERM, |
c90005b5 | 9451 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT, |
a1e55ec0 | 9452 | }, |
20a0943a EBE |
9453 | { |
9454 | .cmd = DEVLINK_CMD_HEALTH_REPORTER_RECOVER, | |
ef6243ac | 9455 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
20a0943a | 9456 | .doit = devlink_nl_cmd_health_reporter_recover_doit, |
20a0943a | 9457 | .flags = GENL_ADMIN_PERM, |
c90005b5 | 9458 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT, |
20a0943a | 9459 | }, |
fca42a27 EBE |
9460 | { |
9461 | .cmd = DEVLINK_CMD_HEALTH_REPORTER_DIAGNOSE, | |
ef6243ac | 9462 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
fca42a27 | 9463 | .doit = devlink_nl_cmd_health_reporter_diagnose_doit, |
fca42a27 | 9464 | .flags = GENL_ADMIN_PERM, |
c90005b5 | 9465 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT, |
fca42a27 | 9466 | }, |
35455e23 EBE |
9467 | { |
9468 | .cmd = DEVLINK_CMD_HEALTH_REPORTER_DUMP_GET, | |
82a843de JP |
9469 | .validate = GENL_DONT_VALIDATE_STRICT | |
9470 | GENL_DONT_VALIDATE_DUMP_STRICT, | |
e44ef4e4 | 9471 | .dumpit = devlink_nl_cmd_health_reporter_dump_get_dumpit, |
35455e23 | 9472 | .flags = GENL_ADMIN_PERM, |
35455e23 EBE |
9473 | }, |
9474 | { | |
9475 | .cmd = DEVLINK_CMD_HEALTH_REPORTER_DUMP_CLEAR, | |
ef6243ac | 9476 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
35455e23 | 9477 | .doit = devlink_nl_cmd_health_reporter_dump_clear_doit, |
35455e23 | 9478 | .flags = GENL_ADMIN_PERM, |
c90005b5 | 9479 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT, |
35455e23 | 9480 | }, |
e2ce94dc JP |
9481 | { |
9482 | .cmd = DEVLINK_CMD_HEALTH_REPORTER_TEST, | |
9483 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, | |
9484 | .doit = devlink_nl_cmd_health_reporter_test_doit, | |
9485 | .flags = GENL_ADMIN_PERM, | |
c90005b5 | 9486 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT, |
e2ce94dc | 9487 | }, |
76726ccb JK |
9488 | { |
9489 | .cmd = DEVLINK_CMD_FLASH_UPDATE, | |
ef6243ac | 9490 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
76726ccb | 9491 | .doit = devlink_nl_cmd_flash_update, |
76726ccb | 9492 | .flags = GENL_ADMIN_PERM, |
76726ccb | 9493 | }, |
0f420b6c IS |
9494 | { |
9495 | .cmd = DEVLINK_CMD_TRAP_GET, | |
9496 | .doit = devlink_nl_cmd_trap_get_doit, | |
9497 | .dumpit = devlink_nl_cmd_trap_get_dumpit, | |
0f420b6c IS |
9498 | /* can be retrieved by unprivileged users */ |
9499 | }, | |
9500 | { | |
9501 | .cmd = DEVLINK_CMD_TRAP_SET, | |
9502 | .doit = devlink_nl_cmd_trap_set_doit, | |
9503 | .flags = GENL_ADMIN_PERM, | |
0f420b6c IS |
9504 | }, |
9505 | { | |
9506 | .cmd = DEVLINK_CMD_TRAP_GROUP_GET, | |
9507 | .doit = devlink_nl_cmd_trap_group_get_doit, | |
9508 | .dumpit = devlink_nl_cmd_trap_group_get_dumpit, | |
0f420b6c IS |
9509 | /* can be retrieved by unprivileged users */ |
9510 | }, | |
9511 | { | |
9512 | .cmd = DEVLINK_CMD_TRAP_GROUP_SET, | |
9513 | .doit = devlink_nl_cmd_trap_group_set_doit, | |
9514 | .flags = GENL_ADMIN_PERM, | |
0f420b6c | 9515 | }, |
1e8c6619 IS |
9516 | { |
9517 | .cmd = DEVLINK_CMD_TRAP_POLICER_GET, | |
9518 | .doit = devlink_nl_cmd_trap_policer_get_doit, | |
9519 | .dumpit = devlink_nl_cmd_trap_policer_get_dumpit, | |
1e8c6619 IS |
9520 | /* can be retrieved by unprivileged users */ |
9521 | }, | |
9522 | { | |
9523 | .cmd = DEVLINK_CMD_TRAP_POLICER_SET, | |
9524 | .doit = devlink_nl_cmd_trap_policer_set_doit, | |
9525 | .flags = GENL_ADMIN_PERM, | |
1e8c6619 | 9526 | }, |
08f588fa VG |
9527 | { |
9528 | .cmd = DEVLINK_CMD_SELFTESTS_GET, | |
9529 | .doit = devlink_nl_cmd_selftests_get_doit, | |
9530 | .dumpit = devlink_nl_cmd_selftests_get_dumpit | |
9531 | /* can be retrieved by unprivileged users */ | |
9532 | }, | |
9533 | { | |
9534 | .cmd = DEVLINK_CMD_SELFTESTS_RUN, | |
9535 | .doit = devlink_nl_cmd_selftests_run, | |
9536 | .flags = GENL_ADMIN_PERM, | |
9537 | }, | |
bfcd3a46 JP |
9538 | }; |
9539 | ||
56989f6d | 9540 | static struct genl_family devlink_nl_family __ro_after_init = { |
489111e5 JB |
9541 | .name = DEVLINK_GENL_NAME, |
9542 | .version = DEVLINK_GENL_VERSION, | |
9543 | .maxattr = DEVLINK_ATTR_MAX, | |
3b0f31f2 | 9544 | .policy = devlink_nl_policy, |
489111e5 | 9545 | .netnsok = true, |
09b27846 | 9546 | .parallel_ops = true, |
489111e5 JB |
9547 | .pre_doit = devlink_nl_pre_doit, |
9548 | .post_doit = devlink_nl_post_doit, | |
9549 | .module = THIS_MODULE, | |
66a9b928 JK |
9550 | .small_ops = devlink_nl_ops, |
9551 | .n_small_ops = ARRAY_SIZE(devlink_nl_ops), | |
9c5d03d3 | 9552 | .resv_start_op = DEVLINK_CMD_SELFTESTS_RUN + 1, |
489111e5 JB |
9553 | .mcgrps = devlink_nl_mcgrps, |
9554 | .n_mcgrps = ARRAY_SIZE(devlink_nl_mcgrps), | |
9555 | }; | |
9556 | ||
ccdf0721 MS |
9557 | static bool devlink_reload_actions_valid(const struct devlink_ops *ops) |
9558 | { | |
dc64cc7c MS |
9559 | const struct devlink_reload_combination *comb; |
9560 | int i; | |
9561 | ||
ccdf0721 MS |
9562 | if (!devlink_reload_supported(ops)) { |
9563 | if (WARN_ON(ops->reload_actions)) | |
9564 | return false; | |
9565 | return true; | |
9566 | } | |
9567 | ||
9568 | if (WARN_ON(!ops->reload_actions || | |
9569 | ops->reload_actions & BIT(DEVLINK_RELOAD_ACTION_UNSPEC) || | |
9570 | ops->reload_actions >= BIT(__DEVLINK_RELOAD_ACTION_MAX))) | |
9571 | return false; | |
dc64cc7c MS |
9572 | |
9573 | if (WARN_ON(ops->reload_limits & BIT(DEVLINK_RELOAD_LIMIT_UNSPEC) || | |
9574 | ops->reload_limits >= BIT(__DEVLINK_RELOAD_LIMIT_MAX))) | |
9575 | return false; | |
9576 | ||
9577 | for (i = 0; i < ARRAY_SIZE(devlink_reload_invalid_combinations); i++) { | |
9578 | comb = &devlink_reload_invalid_combinations[i]; | |
9579 | if (ops->reload_actions == BIT(comb->action) && | |
9580 | ops->reload_limits == BIT(comb->limit)) | |
9581 | return false; | |
9582 | } | |
ccdf0721 MS |
9583 | return true; |
9584 | } | |
9585 | ||
bd032e35 LR |
9586 | /** |
9587 | * devlink_set_features - Set devlink supported features | |
9588 | * | |
9589 | * @devlink: devlink | |
9590 | * @features: devlink support features | |
9591 | * | |
9592 | * This interface allows us to set reload ops separatelly from | |
9593 | * the devlink_alloc. | |
9594 | */ | |
9595 | void devlink_set_features(struct devlink *devlink, u64 features) | |
9596 | { | |
9597 | ASSERT_DEVLINK_NOT_REGISTERED(devlink); | |
9598 | ||
9599 | WARN_ON(features & DEVLINK_F_RELOAD && | |
9600 | !devlink_reload_supported(devlink->ops)); | |
9601 | devlink->features = features; | |
9602 | } | |
9603 | EXPORT_SYMBOL_GPL(devlink_set_features); | |
9604 | ||
bfcd3a46 | 9605 | /** |
26713455 LR |
9606 | * devlink_alloc_ns - Allocate new devlink instance resources |
9607 | * in specific namespace | |
bfcd3a46 JP |
9608 | * |
9609 | * @ops: ops | |
9610 | * @priv_size: size of user private data | |
26713455 | 9611 | * @net: net namespace |
919d13a7 | 9612 | * @dev: parent device |
bfcd3a46 JP |
9613 | * |
9614 | * Allocate new devlink instance resources, including devlink index | |
9615 | * and name. | |
9616 | */ | |
26713455 | 9617 | struct devlink *devlink_alloc_ns(const struct devlink_ops *ops, |
919d13a7 LR |
9618 | size_t priv_size, struct net *net, |
9619 | struct device *dev) | |
bfcd3a46 JP |
9620 | { |
9621 | struct devlink *devlink; | |
11a861d7 LR |
9622 | static u32 last_id; |
9623 | int ret; | |
bfcd3a46 | 9624 | |
919d13a7 | 9625 | WARN_ON(!ops || !dev); |
ccdf0721 MS |
9626 | if (!devlink_reload_actions_valid(ops)) |
9627 | return NULL; | |
9628 | ||
bfcd3a46 JP |
9629 | devlink = kzalloc(sizeof(*devlink) + priv_size, GFP_KERNEL); |
9630 | if (!devlink) | |
9631 | return NULL; | |
919d13a7 | 9632 | |
11a861d7 LR |
9633 | ret = xa_alloc_cyclic(&devlinks, &devlink->index, devlink, xa_limit_31b, |
9634 | &last_id, GFP_KERNEL); | |
9635 | if (ret < 0) { | |
9636 | kfree(devlink); | |
9637 | return NULL; | |
9638 | } | |
9639 | ||
919d13a7 | 9640 | devlink->dev = dev; |
bfcd3a46 | 9641 | devlink->ops = ops; |
12102436 | 9642 | xa_init_flags(&devlink->snapshot_ids, XA_FLAGS_ALLOC); |
26713455 | 9643 | write_pnet(&devlink->_net, net); |
bfcd3a46 | 9644 | INIT_LIST_HEAD(&devlink->port_list); |
4677efc4 | 9645 | INIT_LIST_HEAD(&devlink->rate_list); |
c246f9b5 | 9646 | INIT_LIST_HEAD(&devlink->linecard_list); |
bf797471 | 9647 | INIT_LIST_HEAD(&devlink->sb_list); |
1555d204 | 9648 | INIT_LIST_HEAD_RCU(&devlink->dpipe_table_list); |
d9f9b9a4 | 9649 | INIT_LIST_HEAD(&devlink->resource_list); |
eabaef18 | 9650 | INIT_LIST_HEAD(&devlink->param_list); |
b16ebe92 | 9651 | INIT_LIST_HEAD(&devlink->region_list); |
a0bdcc59 | 9652 | INIT_LIST_HEAD(&devlink->reporter_list); |
0f420b6c IS |
9653 | INIT_LIST_HEAD(&devlink->trap_list); |
9654 | INIT_LIST_HEAD(&devlink->trap_group_list); | |
1e8c6619 | 9655 | INIT_LIST_HEAD(&devlink->trap_policer_list); |
e26fde2f | 9656 | lockdep_register_key(&devlink->lock_key); |
2406e7e5 | 9657 | mutex_init(&devlink->lock); |
e26fde2f | 9658 | lockdep_set_class(&devlink->lock, &devlink->lock_key); |
b587bdaf | 9659 | mutex_init(&devlink->reporters_lock); |
c246f9b5 | 9660 | mutex_init(&devlink->linecards_lock); |
437ebfd9 LR |
9661 | refcount_set(&devlink->refcount, 1); |
9662 | init_completion(&devlink->comp); | |
9663 | ||
bfcd3a46 JP |
9664 | return devlink; |
9665 | } | |
26713455 | 9666 | EXPORT_SYMBOL_GPL(devlink_alloc_ns); |
bfcd3a46 | 9667 | |
cf530217 LR |
9668 | static void |
9669 | devlink_trap_policer_notify(struct devlink *devlink, | |
9670 | const struct devlink_trap_policer_item *policer_item, | |
9671 | enum devlink_command cmd); | |
9672 | static void | |
9673 | devlink_trap_group_notify(struct devlink *devlink, | |
9674 | const struct devlink_trap_group_item *group_item, | |
9675 | enum devlink_command cmd); | |
9676 | static void devlink_trap_notify(struct devlink *devlink, | |
9677 | const struct devlink_trap_item *trap_item, | |
9678 | enum devlink_command cmd); | |
9679 | ||
9680 | static void devlink_notify_register(struct devlink *devlink) | |
9681 | { | |
9682 | struct devlink_trap_policer_item *policer_item; | |
9683 | struct devlink_trap_group_item *group_item; | |
99ad92ef | 9684 | struct devlink_param_item *param_item; |
cf530217 LR |
9685 | struct devlink_trap_item *trap_item; |
9686 | struct devlink_port *devlink_port; | |
c246f9b5 | 9687 | struct devlink_linecard *linecard; |
ef91abfb LR |
9688 | struct devlink_rate *rate_node; |
9689 | struct devlink_region *region; | |
cf530217 LR |
9690 | |
9691 | devlink_notify(devlink, DEVLINK_CMD_NEW); | |
c246f9b5 JP |
9692 | list_for_each_entry(linecard, &devlink->linecard_list, list) |
9693 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
9694 | ||
cf530217 LR |
9695 | list_for_each_entry(devlink_port, &devlink->port_list, list) |
9696 | devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_NEW); | |
9697 | ||
9698 | list_for_each_entry(policer_item, &devlink->trap_policer_list, list) | |
9699 | devlink_trap_policer_notify(devlink, policer_item, | |
9700 | DEVLINK_CMD_TRAP_POLICER_NEW); | |
9701 | ||
9702 | list_for_each_entry(group_item, &devlink->trap_group_list, list) | |
9703 | devlink_trap_group_notify(devlink, group_item, | |
9704 | DEVLINK_CMD_TRAP_GROUP_NEW); | |
9705 | ||
9706 | list_for_each_entry(trap_item, &devlink->trap_list, list) | |
9707 | devlink_trap_notify(devlink, trap_item, DEVLINK_CMD_TRAP_NEW); | |
9708 | ||
ef91abfb LR |
9709 | list_for_each_entry(rate_node, &devlink->rate_list, list) |
9710 | devlink_rate_notify(rate_node, DEVLINK_CMD_RATE_NEW); | |
9711 | ||
9712 | list_for_each_entry(region, &devlink->region_list, list) | |
9713 | devlink_nl_region_notify(region, NULL, DEVLINK_CMD_REGION_NEW); | |
9714 | ||
99ad92ef LR |
9715 | list_for_each_entry(param_item, &devlink->param_list, list) |
9716 | devlink_param_notify(devlink, 0, param_item, | |
9717 | DEVLINK_CMD_PARAM_NEW); | |
cf530217 LR |
9718 | } |
9719 | ||
9720 | static void devlink_notify_unregister(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; | |
ef91abfb LR |
9727 | struct devlink_rate *rate_node; |
9728 | struct devlink_region *region; | |
cf530217 | 9729 | |
99ad92ef LR |
9730 | list_for_each_entry_reverse(param_item, &devlink->param_list, list) |
9731 | devlink_param_notify(devlink, 0, param_item, | |
9732 | DEVLINK_CMD_PARAM_DEL); | |
cf530217 | 9733 | |
ef91abfb LR |
9734 | list_for_each_entry_reverse(region, &devlink->region_list, list) |
9735 | devlink_nl_region_notify(region, NULL, DEVLINK_CMD_REGION_DEL); | |
9736 | ||
9737 | list_for_each_entry_reverse(rate_node, &devlink->rate_list, list) | |
9738 | devlink_rate_notify(rate_node, DEVLINK_CMD_RATE_DEL); | |
9739 | ||
cf530217 LR |
9740 | list_for_each_entry_reverse(trap_item, &devlink->trap_list, list) |
9741 | devlink_trap_notify(devlink, trap_item, DEVLINK_CMD_TRAP_DEL); | |
9742 | ||
9743 | list_for_each_entry_reverse(group_item, &devlink->trap_group_list, list) | |
9744 | devlink_trap_group_notify(devlink, group_item, | |
9745 | DEVLINK_CMD_TRAP_GROUP_DEL); | |
9746 | list_for_each_entry_reverse(policer_item, &devlink->trap_policer_list, | |
9747 | list) | |
9748 | devlink_trap_policer_notify(devlink, policer_item, | |
9749 | DEVLINK_CMD_TRAP_POLICER_DEL); | |
9750 | ||
9751 | list_for_each_entry_reverse(devlink_port, &devlink->port_list, list) | |
9752 | devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_DEL); | |
9753 | devlink_notify(devlink, DEVLINK_CMD_DEL); | |
9754 | } | |
9755 | ||
bfcd3a46 JP |
9756 | /** |
9757 | * devlink_register - Register devlink instance | |
9758 | * | |
9759 | * @devlink: devlink | |
9760 | */ | |
db4278c5 | 9761 | void devlink_register(struct devlink *devlink) |
bfcd3a46 | 9762 | { |
b88f7b12 LR |
9763 | ASSERT_DEVLINK_NOT_REGISTERED(devlink); |
9764 | /* Make sure that we are in .probe() routine */ | |
b88f7b12 | 9765 | |
11a861d7 | 9766 | xa_set_mark(&devlinks, devlink->index, DEVLINK_REGISTERED); |
cf530217 | 9767 | devlink_notify_register(devlink); |
bfcd3a46 JP |
9768 | } |
9769 | EXPORT_SYMBOL_GPL(devlink_register); | |
9770 | ||
9771 | /** | |
9772 | * devlink_unregister - Unregister devlink instance | |
9773 | * | |
9774 | * @devlink: devlink | |
9775 | */ | |
9776 | void devlink_unregister(struct devlink *devlink) | |
9777 | { | |
b88f7b12 LR |
9778 | ASSERT_DEVLINK_REGISTERED(devlink); |
9779 | /* Make sure that we are in .remove() routine */ | |
b88f7b12 | 9780 | |
c2368b19 | 9781 | xa_set_mark(&devlinks, devlink->index, DEVLINK_UNREGISTERING); |
437ebfd9 LR |
9782 | devlink_put(devlink); |
9783 | wait_for_completion(&devlink->comp); | |
9784 | ||
cf530217 | 9785 | devlink_notify_unregister(devlink); |
11a861d7 | 9786 | xa_clear_mark(&devlinks, devlink->index, DEVLINK_REGISTERED); |
c2368b19 | 9787 | xa_clear_mark(&devlinks, devlink->index, DEVLINK_UNREGISTERING); |
bfcd3a46 JP |
9788 | } |
9789 | EXPORT_SYMBOL_GPL(devlink_unregister); | |
9790 | ||
9791 | /** | |
9792 | * devlink_free - Free devlink instance resources | |
9793 | * | |
9794 | * @devlink: devlink | |
9795 | */ | |
9796 | void devlink_free(struct devlink *devlink) | |
9797 | { | |
b88f7b12 LR |
9798 | ASSERT_DEVLINK_NOT_REGISTERED(devlink); |
9799 | ||
c246f9b5 | 9800 | mutex_destroy(&devlink->linecards_lock); |
b587bdaf | 9801 | mutex_destroy(&devlink->reporters_lock); |
375cf8c6 | 9802 | mutex_destroy(&devlink->lock); |
e26fde2f | 9803 | lockdep_unregister_key(&devlink->lock_key); |
1e8c6619 | 9804 | WARN_ON(!list_empty(&devlink->trap_policer_list)); |
0f420b6c IS |
9805 | WARN_ON(!list_empty(&devlink->trap_group_list)); |
9806 | WARN_ON(!list_empty(&devlink->trap_list)); | |
b904aada PP |
9807 | WARN_ON(!list_empty(&devlink->reporter_list)); |
9808 | WARN_ON(!list_empty(&devlink->region_list)); | |
9809 | WARN_ON(!list_empty(&devlink->param_list)); | |
9810 | WARN_ON(!list_empty(&devlink->resource_list)); | |
9811 | WARN_ON(!list_empty(&devlink->dpipe_table_list)); | |
9812 | WARN_ON(!list_empty(&devlink->sb_list)); | |
4677efc4 | 9813 | WARN_ON(!list_empty(&devlink->rate_list)); |
c246f9b5 | 9814 | WARN_ON(!list_empty(&devlink->linecard_list)); |
b904aada PP |
9815 | WARN_ON(!list_empty(&devlink->port_list)); |
9816 | ||
12102436 | 9817 | xa_destroy(&devlink->snapshot_ids); |
11a861d7 | 9818 | xa_erase(&devlinks, devlink->index); |
12102436 | 9819 | |
bfcd3a46 JP |
9820 | kfree(devlink); |
9821 | } | |
9822 | EXPORT_SYMBOL_GPL(devlink_free); | |
9823 | ||
136bf27f JP |
9824 | static void devlink_port_type_warn(struct work_struct *work) |
9825 | { | |
9826 | WARN(true, "Type was not set for devlink port."); | |
9827 | } | |
9828 | ||
9829 | static bool devlink_port_type_should_warn(struct devlink_port *devlink_port) | |
9830 | { | |
9831 | /* Ignore CPU and DSA flavours. */ | |
9832 | return devlink_port->attrs.flavour != DEVLINK_PORT_FLAVOUR_CPU && | |
cf116634 AL |
9833 | devlink_port->attrs.flavour != DEVLINK_PORT_FLAVOUR_DSA && |
9834 | devlink_port->attrs.flavour != DEVLINK_PORT_FLAVOUR_UNUSED; | |
136bf27f JP |
9835 | } |
9836 | ||
4c582234 | 9837 | #define DEVLINK_PORT_TYPE_WARN_TIMEOUT (HZ * 3600) |
136bf27f JP |
9838 | |
9839 | static void devlink_port_type_warn_schedule(struct devlink_port *devlink_port) | |
9840 | { | |
9841 | if (!devlink_port_type_should_warn(devlink_port)) | |
9842 | return; | |
9843 | /* Schedule a work to WARN in case driver does not set port | |
9844 | * type within timeout. | |
9845 | */ | |
9846 | schedule_delayed_work(&devlink_port->type_warn_dw, | |
9847 | DEVLINK_PORT_TYPE_WARN_TIMEOUT); | |
9848 | } | |
9849 | ||
9850 | static void devlink_port_type_warn_cancel(struct devlink_port *devlink_port) | |
9851 | { | |
9852 | if (!devlink_port_type_should_warn(devlink_port)) | |
9853 | return; | |
9854 | cancel_delayed_work_sync(&devlink_port->type_warn_dw); | |
9855 | } | |
9856 | ||
ae3bbc04 JP |
9857 | /** |
9858 | * devlink_port_init() - Init devlink port | |
9859 | * | |
9860 | * @devlink: devlink | |
9861 | * @devlink_port: devlink port | |
9862 | * | |
9863 | * Initialize essencial stuff that is needed for functions | |
9864 | * that may be called before devlink port registration. | |
9865 | * Call to this function is optional and not needed | |
9866 | * in case the driver does not use such functions. | |
9867 | */ | |
9868 | void devlink_port_init(struct devlink *devlink, | |
9869 | struct devlink_port *devlink_port) | |
9870 | { | |
9871 | if (devlink_port->initialized) | |
9872 | return; | |
9873 | devlink_port->devlink = devlink; | |
9874 | INIT_LIST_HEAD(&devlink_port->region_list); | |
9875 | devlink_port->initialized = true; | |
9876 | } | |
9877 | EXPORT_SYMBOL_GPL(devlink_port_init); | |
9878 | ||
9879 | /** | |
9880 | * devlink_port_fini() - Deinitialize devlink port | |
9881 | * | |
9882 | * @devlink_port: devlink port | |
9883 | * | |
9884 | * Deinitialize essencial stuff that is in use for functions | |
9885 | * that may be called after devlink port unregistration. | |
9886 | * Call to this function is optional and not needed | |
9887 | * in case the driver does not use such functions. | |
9888 | */ | |
9889 | void devlink_port_fini(struct devlink_port *devlink_port) | |
9890 | { | |
9891 | WARN_ON(!list_empty(&devlink_port->region_list)); | |
9892 | } | |
9893 | EXPORT_SYMBOL_GPL(devlink_port_fini); | |
9894 | ||
1abfb265 JP |
9895 | /** |
9896 | * devl_port_register() - Register devlink port | |
9897 | * | |
9898 | * @devlink: devlink | |
9899 | * @devlink_port: devlink port | |
9900 | * @port_index: driver-specific numerical identifier of the port | |
9901 | * | |
9902 | * Register devlink port with provided port index. User can use | |
9903 | * any indexing, even hw-related one. devlink_port structure | |
9904 | * is convenient to be embedded inside user driver private structure. | |
9905 | * Note that the caller should take care of zeroing the devlink_port | |
9906 | * structure. | |
9907 | */ | |
2cb7b489 JK |
9908 | int devl_port_register(struct devlink *devlink, |
9909 | struct devlink_port *devlink_port, | |
9910 | unsigned int port_index) | |
9911 | { | |
7715023a | 9912 | devl_assert_locked(devlink); |
2cb7b489 JK |
9913 | |
9914 | if (devlink_port_index_exists(devlink, port_index)) | |
9915 | return -EEXIST; | |
9916 | ||
3fcb698d JP |
9917 | ASSERT_DEVLINK_PORT_NOT_REGISTERED(devlink_port); |
9918 | ||
ae3bbc04 | 9919 | devlink_port_init(devlink, devlink_port); |
081adcfe | 9920 | devlink_port->registered = true; |
2cb7b489 JK |
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); | |
2cb7b489 JK |
9926 | |
9927 | INIT_DELAYED_WORK(&devlink_port->type_warn_dw, &devlink_port_type_warn); | |
9928 | devlink_port_type_warn_schedule(devlink_port); | |
9929 | devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_NEW); | |
9930 | return 0; | |
9931 | } | |
9932 | EXPORT_SYMBOL_GPL(devl_port_register); | |
9933 | ||
bfcd3a46 JP |
9934 | /** |
9935 | * devlink_port_register - Register devlink port | |
9936 | * | |
9937 | * @devlink: devlink | |
9938 | * @devlink_port: devlink port | |
eeaadd82 | 9939 | * @port_index: driver-specific numerical identifier of the port |
bfcd3a46 JP |
9940 | * |
9941 | * Register devlink port with provided port index. User can use | |
9942 | * any indexing, even hw-related one. devlink_port structure | |
9943 | * is convenient to be embedded inside user driver private structure. | |
9944 | * Note that the caller should take care of zeroing the devlink_port | |
9945 | * structure. | |
1abfb265 JP |
9946 | * |
9947 | * Context: Takes and release devlink->lock <mutex>. | |
bfcd3a46 JP |
9948 | */ |
9949 | int devlink_port_register(struct devlink *devlink, | |
9950 | struct devlink_port *devlink_port, | |
9951 | unsigned int port_index) | |
9952 | { | |
2cb7b489 | 9953 | int err; |
d7907a2b | 9954 | |
7715023a | 9955 | devl_lock(devlink); |
2cb7b489 | 9956 | err = devl_port_register(devlink, devlink_port, port_index); |
7715023a | 9957 | devl_unlock(devlink); |
2cb7b489 | 9958 | return err; |
bfcd3a46 JP |
9959 | } |
9960 | EXPORT_SYMBOL_GPL(devlink_port_register); | |
9961 | ||
1abfb265 JP |
9962 | /** |
9963 | * devl_port_unregister() - Unregister devlink port | |
9964 | * | |
9965 | * @devlink_port: devlink port | |
9966 | */ | |
2cb7b489 JK |
9967 | void devl_port_unregister(struct devlink_port *devlink_port) |
9968 | { | |
9969 | lockdep_assert_held(&devlink_port->devlink->lock); | |
9970 | ||
9971 | devlink_port_type_warn_cancel(devlink_port); | |
9972 | devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_DEL); | |
9973 | list_del(&devlink_port->list); | |
9974 | WARN_ON(!list_empty(&devlink_port->reporter_list)); | |
2cb7b489 | 9975 | mutex_destroy(&devlink_port->reporters_lock); |
081adcfe | 9976 | devlink_port->registered = false; |
2cb7b489 JK |
9977 | } |
9978 | EXPORT_SYMBOL_GPL(devl_port_unregister); | |
9979 | ||
bfcd3a46 JP |
9980 | /** |
9981 | * devlink_port_unregister - Unregister devlink port | |
9982 | * | |
9983 | * @devlink_port: devlink port | |
1abfb265 JP |
9984 | * |
9985 | * Context: Takes and release devlink->lock <mutex>. | |
bfcd3a46 JP |
9986 | */ |
9987 | void devlink_port_unregister(struct devlink_port *devlink_port) | |
9988 | { | |
2406e7e5 AS |
9989 | struct devlink *devlink = devlink_port->devlink; |
9990 | ||
7715023a | 9991 | devl_lock(devlink); |
2cb7b489 | 9992 | devl_port_unregister(devlink_port); |
7715023a | 9993 | devl_unlock(devlink); |
bfcd3a46 JP |
9994 | } |
9995 | EXPORT_SYMBOL_GPL(devlink_port_unregister); | |
9996 | ||
9997 | static void __devlink_port_type_set(struct devlink_port *devlink_port, | |
9998 | enum devlink_port_type type, | |
9999 | void *type_dev) | |
10000 | { | |
3fcb698d JP |
10001 | ASSERT_DEVLINK_PORT_REGISTERED(devlink_port); |
10002 | ||
8573a044 JP |
10003 | if (type == DEVLINK_PORT_TYPE_NOTSET) |
10004 | devlink_port_type_warn_schedule(devlink_port); | |
10005 | else | |
10006 | devlink_port_type_warn_cancel(devlink_port); | |
10007 | ||
0f420b6c | 10008 | spin_lock_bh(&devlink_port->type_lock); |
bfcd3a46 | 10009 | devlink_port->type = type; |
3830c571 JP |
10010 | switch (type) { |
10011 | case DEVLINK_PORT_TYPE_ETH: | |
10012 | devlink_port->type_eth.netdev = type_dev; | |
10013 | break; | |
10014 | case DEVLINK_PORT_TYPE_IB: | |
10015 | devlink_port->type_ib.ibdev = type_dev; | |
10016 | break; | |
10017 | default: | |
10018 | break; | |
10019 | } | |
0f420b6c | 10020 | spin_unlock_bh(&devlink_port->type_lock); |
bfcd3a46 JP |
10021 | devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_NEW); |
10022 | } | |
10023 | ||
3ea87ca7 JK |
10024 | static void devlink_port_type_netdev_checks(struct devlink_port *devlink_port, |
10025 | struct net_device *netdev) | |
bfcd3a46 | 10026 | { |
119c0b57 JP |
10027 | const struct net_device_ops *ops = netdev->netdev_ops; |
10028 | ||
746364f2 JP |
10029 | /* If driver registers devlink port, it should set devlink port |
10030 | * attributes accordingly so the compat functions are called | |
10031 | * and the original ops are not used. | |
10032 | */ | |
119c0b57 | 10033 | if (ops->ndo_get_phys_port_name) { |
746364f2 JP |
10034 | /* Some drivers use the same set of ndos for netdevs |
10035 | * that have devlink_port registered and also for | |
10036 | * those who don't. Make sure that ndo_get_phys_port_name | |
10037 | * returns -EOPNOTSUPP here in case it is defined. | |
10038 | * Warn if not. | |
10039 | */ | |
746364f2 JP |
10040 | char name[IFNAMSIZ]; |
10041 | int err; | |
10042 | ||
10043 | err = ops->ndo_get_phys_port_name(netdev, name, sizeof(name)); | |
10044 | WARN_ON(err != -EOPNOTSUPP); | |
10045 | } | |
119c0b57 JP |
10046 | if (ops->ndo_get_port_parent_id) { |
10047 | /* Some drivers use the same set of ndos for netdevs | |
10048 | * that have devlink_port registered and also for | |
10049 | * those who don't. Make sure that ndo_get_port_parent_id | |
10050 | * returns -EOPNOTSUPP here in case it is defined. | |
10051 | * Warn if not. | |
10052 | */ | |
10053 | struct netdev_phys_item_id ppid; | |
10054 | int err; | |
10055 | ||
10056 | err = ops->ndo_get_port_parent_id(netdev, &ppid); | |
10057 | WARN_ON(err != -EOPNOTSUPP); | |
10058 | } | |
3ea87ca7 JK |
10059 | } |
10060 | ||
10061 | /** | |
10062 | * devlink_port_type_eth_set - Set port type to Ethernet | |
10063 | * | |
10064 | * @devlink_port: devlink port | |
10065 | * @netdev: related netdevice | |
10066 | */ | |
10067 | void devlink_port_type_eth_set(struct devlink_port *devlink_port, | |
10068 | struct net_device *netdev) | |
10069 | { | |
10070 | if (netdev) | |
10071 | devlink_port_type_netdev_checks(devlink_port, netdev); | |
10072 | else | |
10073 | dev_warn(devlink_port->devlink->dev, | |
10074 | "devlink port type for port %d set to Ethernet without a software interface reference, device type not supported by the kernel?\n", | |
10075 | devlink_port->index); | |
10076 | ||
773b1f38 | 10077 | __devlink_port_type_set(devlink_port, DEVLINK_PORT_TYPE_ETH, netdev); |
bfcd3a46 JP |
10078 | } |
10079 | EXPORT_SYMBOL_GPL(devlink_port_type_eth_set); | |
10080 | ||
10081 | /** | |
10082 | * devlink_port_type_ib_set - Set port type to InfiniBand | |
10083 | * | |
10084 | * @devlink_port: devlink port | |
10085 | * @ibdev: related IB device | |
10086 | */ | |
10087 | void devlink_port_type_ib_set(struct devlink_port *devlink_port, | |
10088 | struct ib_device *ibdev) | |
10089 | { | |
773b1f38 | 10090 | __devlink_port_type_set(devlink_port, DEVLINK_PORT_TYPE_IB, ibdev); |
bfcd3a46 JP |
10091 | } |
10092 | EXPORT_SYMBOL_GPL(devlink_port_type_ib_set); | |
10093 | ||
10094 | /** | |
10095 | * devlink_port_type_clear - Clear port type | |
10096 | * | |
10097 | * @devlink_port: devlink port | |
10098 | */ | |
10099 | void devlink_port_type_clear(struct devlink_port *devlink_port) | |
10100 | { | |
773b1f38 | 10101 | __devlink_port_type_set(devlink_port, DEVLINK_PORT_TYPE_NOTSET, NULL); |
bfcd3a46 JP |
10102 | } |
10103 | EXPORT_SYMBOL_GPL(devlink_port_type_clear); | |
10104 | ||
378ef01b | 10105 | static int __devlink_port_attrs_set(struct devlink_port *devlink_port, |
71ad8d55 | 10106 | enum devlink_port_flavour flavour) |
378ef01b PP |
10107 | { |
10108 | struct devlink_port_attrs *attrs = &devlink_port->attrs; | |
10109 | ||
10a429ba | 10110 | devlink_port->attrs_set = true; |
378ef01b | 10111 | attrs->flavour = flavour; |
71ad8d55 | 10112 | if (attrs->switch_id.id_len) { |
46737a19 | 10113 | devlink_port->switch_port = true; |
71ad8d55 DR |
10114 | if (WARN_ON(attrs->switch_id.id_len > MAX_PHYS_ITEM_ID_LEN)) |
10115 | attrs->switch_id.id_len = MAX_PHYS_ITEM_ID_LEN; | |
378ef01b | 10116 | } else { |
46737a19 | 10117 | devlink_port->switch_port = false; |
378ef01b PP |
10118 | } |
10119 | return 0; | |
10120 | } | |
10121 | ||
bfcd3a46 | 10122 | /** |
b9ffcbaf | 10123 | * devlink_port_attrs_set - Set port attributes |
bfcd3a46 JP |
10124 | * |
10125 | * @devlink_port: devlink port | |
71ad8d55 | 10126 | * @attrs: devlink port attrs |
bfcd3a46 | 10127 | */ |
b9ffcbaf | 10128 | void devlink_port_attrs_set(struct devlink_port *devlink_port, |
71ad8d55 | 10129 | struct devlink_port_attrs *attrs) |
bfcd3a46 | 10130 | { |
378ef01b | 10131 | int ret; |
b9ffcbaf | 10132 | |
3fcb698d JP |
10133 | ASSERT_DEVLINK_PORT_NOT_REGISTERED(devlink_port); |
10134 | ||
71ad8d55 DR |
10135 | devlink_port->attrs = *attrs; |
10136 | ret = __devlink_port_attrs_set(devlink_port, attrs->flavour); | |
378ef01b | 10137 | if (ret) |
45b86112 | 10138 | return; |
a0f49b54 | 10139 | WARN_ON(attrs->splittable && attrs->split); |
bfcd3a46 | 10140 | } |
b9ffcbaf | 10141 | EXPORT_SYMBOL_GPL(devlink_port_attrs_set); |
bfcd3a46 | 10142 | |
98fd2d65 PP |
10143 | /** |
10144 | * devlink_port_attrs_pci_pf_set - Set PCI PF port attributes | |
10145 | * | |
10146 | * @devlink_port: devlink port | |
3a2d9588 | 10147 | * @controller: associated controller number for the devlink port instance |
98fd2d65 | 10148 | * @pf: associated PF for the devlink port instance |
05b595e9 | 10149 | * @external: indicates if the port is for an external controller |
98fd2d65 | 10150 | */ |
3a2d9588 PP |
10151 | void devlink_port_attrs_pci_pf_set(struct devlink_port *devlink_port, u32 controller, |
10152 | u16 pf, bool external) | |
98fd2d65 PP |
10153 | { |
10154 | struct devlink_port_attrs *attrs = &devlink_port->attrs; | |
10155 | int ret; | |
10156 | ||
3fcb698d JP |
10157 | ASSERT_DEVLINK_PORT_NOT_REGISTERED(devlink_port); |
10158 | ||
98fd2d65 | 10159 | ret = __devlink_port_attrs_set(devlink_port, |
71ad8d55 | 10160 | DEVLINK_PORT_FLAVOUR_PCI_PF); |
98fd2d65 PP |
10161 | if (ret) |
10162 | return; | |
3a2d9588 | 10163 | attrs->pci_pf.controller = controller; |
98fd2d65 | 10164 | attrs->pci_pf.pf = pf; |
05b595e9 | 10165 | attrs->pci_pf.external = external; |
98fd2d65 PP |
10166 | } |
10167 | EXPORT_SYMBOL_GPL(devlink_port_attrs_pci_pf_set); | |
10168 | ||
e41b6bf3 PP |
10169 | /** |
10170 | * devlink_port_attrs_pci_vf_set - Set PCI VF port attributes | |
10171 | * | |
10172 | * @devlink_port: devlink port | |
3a2d9588 | 10173 | * @controller: associated controller number for the devlink port instance |
e41b6bf3 PP |
10174 | * @pf: associated PF for the devlink port instance |
10175 | * @vf: associated VF of a PF for the devlink port instance | |
05b595e9 | 10176 | * @external: indicates if the port is for an external controller |
e41b6bf3 | 10177 | */ |
3a2d9588 | 10178 | void devlink_port_attrs_pci_vf_set(struct devlink_port *devlink_port, u32 controller, |
05b595e9 | 10179 | u16 pf, u16 vf, bool external) |
e41b6bf3 PP |
10180 | { |
10181 | struct devlink_port_attrs *attrs = &devlink_port->attrs; | |
10182 | int ret; | |
10183 | ||
3fcb698d JP |
10184 | ASSERT_DEVLINK_PORT_NOT_REGISTERED(devlink_port); |
10185 | ||
e41b6bf3 | 10186 | ret = __devlink_port_attrs_set(devlink_port, |
71ad8d55 | 10187 | DEVLINK_PORT_FLAVOUR_PCI_VF); |
e41b6bf3 PP |
10188 | if (ret) |
10189 | return; | |
3a2d9588 | 10190 | attrs->pci_vf.controller = controller; |
e41b6bf3 PP |
10191 | attrs->pci_vf.pf = pf; |
10192 | attrs->pci_vf.vf = vf; | |
05b595e9 | 10193 | attrs->pci_vf.external = external; |
e41b6bf3 PP |
10194 | } |
10195 | EXPORT_SYMBOL_GPL(devlink_port_attrs_pci_vf_set); | |
10196 | ||
b8288837 PP |
10197 | /** |
10198 | * devlink_port_attrs_pci_sf_set - Set PCI SF port attributes | |
10199 | * | |
10200 | * @devlink_port: devlink port | |
10201 | * @controller: associated controller number for the devlink port instance | |
10202 | * @pf: associated PF for the devlink port instance | |
10203 | * @sf: associated SF of a PF for the devlink port instance | |
a1ab3e45 | 10204 | * @external: indicates if the port is for an external controller |
b8288837 PP |
10205 | */ |
10206 | void devlink_port_attrs_pci_sf_set(struct devlink_port *devlink_port, u32 controller, | |
a1ab3e45 | 10207 | u16 pf, u32 sf, bool external) |
b8288837 PP |
10208 | { |
10209 | struct devlink_port_attrs *attrs = &devlink_port->attrs; | |
10210 | int ret; | |
10211 | ||
3fcb698d JP |
10212 | ASSERT_DEVLINK_PORT_NOT_REGISTERED(devlink_port); |
10213 | ||
b8288837 PP |
10214 | ret = __devlink_port_attrs_set(devlink_port, |
10215 | DEVLINK_PORT_FLAVOUR_PCI_SF); | |
10216 | if (ret) | |
10217 | return; | |
10218 | attrs->pci_sf.controller = controller; | |
10219 | attrs->pci_sf.pf = pf; | |
10220 | attrs->pci_sf.sf = sf; | |
a1ab3e45 | 10221 | attrs->pci_sf.external = external; |
b8288837 PP |
10222 | } |
10223 | EXPORT_SYMBOL_GPL(devlink_port_attrs_pci_sf_set); | |
10224 | ||
4677efc4 | 10225 | /** |
8879b32a | 10226 | * devl_rate_leaf_create - create devlink rate leaf |
4677efc4 DL |
10227 | * @devlink_port: devlink port object to create rate object on |
10228 | * @priv: driver private data | |
10229 | * | |
10230 | * Create devlink rate object of type leaf on provided @devlink_port. | |
4677efc4 | 10231 | */ |
8879b32a | 10232 | int devl_rate_leaf_create(struct devlink_port *devlink_port, void *priv) |
4677efc4 DL |
10233 | { |
10234 | struct devlink *devlink = devlink_port->devlink; | |
10235 | struct devlink_rate *devlink_rate; | |
10236 | ||
8879b32a JK |
10237 | devl_assert_locked(devlink_port->devlink); |
10238 | ||
10239 | if (WARN_ON(devlink_port->devlink_rate)) | |
10240 | return -EBUSY; | |
10241 | ||
4677efc4 DL |
10242 | devlink_rate = kzalloc(sizeof(*devlink_rate), GFP_KERNEL); |
10243 | if (!devlink_rate) | |
10244 | return -ENOMEM; | |
10245 | ||
4677efc4 DL |
10246 | devlink_rate->type = DEVLINK_RATE_TYPE_LEAF; |
10247 | devlink_rate->devlink = devlink; | |
10248 | devlink_rate->devlink_port = devlink_port; | |
10249 | devlink_rate->priv = priv; | |
10250 | list_add_tail(&devlink_rate->list, &devlink->rate_list); | |
10251 | devlink_port->devlink_rate = devlink_rate; | |
10252 | devlink_rate_notify(devlink_rate, DEVLINK_CMD_RATE_NEW); | |
4677efc4 DL |
10253 | |
10254 | return 0; | |
10255 | } | |
8879b32a JK |
10256 | EXPORT_SYMBOL_GPL(devl_rate_leaf_create); |
10257 | ||
df539fc6 MS |
10258 | /** |
10259 | * devl_rate_leaf_destroy - destroy devlink rate leaf | |
10260 | * | |
10261 | * @devlink_port: devlink port linked to the rate object | |
10262 | * | |
10263 | * Destroy the devlink rate object of type leaf on provided @devlink_port. | |
10264 | */ | |
8879b32a JK |
10265 | void devl_rate_leaf_destroy(struct devlink_port *devlink_port) |
10266 | { | |
10267 | struct devlink_rate *devlink_rate = devlink_port->devlink_rate; | |
10268 | ||
10269 | devl_assert_locked(devlink_port->devlink); | |
10270 | if (!devlink_rate) | |
10271 | return; | |
10272 | ||
10273 | devlink_rate_notify(devlink_rate, DEVLINK_CMD_RATE_DEL); | |
10274 | if (devlink_rate->parent) | |
10275 | refcount_dec(&devlink_rate->parent->refcnt); | |
10276 | list_del(&devlink_rate->list); | |
10277 | devlink_port->devlink_rate = NULL; | |
10278 | kfree(devlink_rate); | |
10279 | } | |
10280 | EXPORT_SYMBOL_GPL(devl_rate_leaf_destroy); | |
10281 | ||
a8ecb93e | 10282 | /** |
8879b32a | 10283 | * devl_rate_nodes_destroy - destroy all devlink rate nodes on device |
a8ecb93e DL |
10284 | * @devlink: devlink instance |
10285 | * | |
d7555984 DL |
10286 | * Unset parent for all rate objects and destroy all rate nodes |
10287 | * on specified device. | |
a8ecb93e | 10288 | */ |
8879b32a | 10289 | void devl_rate_nodes_destroy(struct devlink *devlink) |
a8ecb93e DL |
10290 | { |
10291 | static struct devlink_rate *devlink_rate, *tmp; | |
10292 | const struct devlink_ops *ops = devlink->ops; | |
10293 | ||
8879b32a JK |
10294 | devl_assert_locked(devlink); |
10295 | ||
d7555984 DL |
10296 | list_for_each_entry(devlink_rate, &devlink->rate_list, list) { |
10297 | if (!devlink_rate->parent) | |
10298 | continue; | |
10299 | ||
10300 | refcount_dec(&devlink_rate->parent->refcnt); | |
10301 | if (devlink_rate_is_leaf(devlink_rate)) | |
10302 | ops->rate_leaf_parent_set(devlink_rate, NULL, devlink_rate->priv, | |
10303 | NULL, NULL); | |
10304 | else if (devlink_rate_is_node(devlink_rate)) | |
10305 | ops->rate_node_parent_set(devlink_rate, NULL, devlink_rate->priv, | |
10306 | NULL, NULL); | |
10307 | } | |
a8ecb93e DL |
10308 | list_for_each_entry_safe(devlink_rate, tmp, &devlink->rate_list, list) { |
10309 | if (devlink_rate_is_node(devlink_rate)) { | |
10310 | ops->rate_node_del(devlink_rate, devlink_rate->priv, NULL); | |
10311 | list_del(&devlink_rate->list); | |
10312 | kfree(devlink_rate->name); | |
10313 | kfree(devlink_rate); | |
10314 | } | |
10315 | } | |
8879b32a JK |
10316 | } |
10317 | EXPORT_SYMBOL_GPL(devl_rate_nodes_destroy); | |
10318 | ||
b8375859 JP |
10319 | /** |
10320 | * devlink_port_linecard_set - Link port with a linecard | |
10321 | * | |
10322 | * @devlink_port: devlink port | |
10323 | * @linecard: devlink linecard | |
10324 | */ | |
10325 | void devlink_port_linecard_set(struct devlink_port *devlink_port, | |
10326 | struct devlink_linecard *linecard) | |
10327 | { | |
3fcb698d JP |
10328 | ASSERT_DEVLINK_PORT_NOT_REGISTERED(devlink_port); |
10329 | ||
b8375859 JP |
10330 | devlink_port->linecard = linecard; |
10331 | } | |
10332 | EXPORT_SYMBOL_GPL(devlink_port_linecard_set); | |
10333 | ||
af3836df JP |
10334 | static int __devlink_port_phys_port_name_get(struct devlink_port *devlink_port, |
10335 | char *name, size_t len) | |
08474c1a JP |
10336 | { |
10337 | struct devlink_port_attrs *attrs = &devlink_port->attrs; | |
10338 | int n = 0; | |
10339 | ||
10a429ba | 10340 | if (!devlink_port->attrs_set) |
08474c1a JP |
10341 | return -EOPNOTSUPP; |
10342 | ||
10343 | switch (attrs->flavour) { | |
10344 | case DEVLINK_PORT_FLAVOUR_PHYSICAL: | |
b8375859 JP |
10345 | if (devlink_port->linecard) |
10346 | n = snprintf(name, len, "l%u", | |
10347 | devlink_port->linecard->index); | |
10348 | if (n < len) | |
10349 | n += snprintf(name + n, len - n, "p%u", | |
10350 | attrs->phys.port_number); | |
f285f37c JP |
10351 | if (n < len && attrs->split) |
10352 | n += snprintf(name + n, len - n, "s%u", | |
10353 | attrs->phys.split_subport_number); | |
08474c1a JP |
10354 | break; |
10355 | case DEVLINK_PORT_FLAVOUR_CPU: | |
10356 | case DEVLINK_PORT_FLAVOUR_DSA: | |
cf116634 | 10357 | case DEVLINK_PORT_FLAVOUR_UNUSED: |
08474c1a JP |
10358 | /* As CPU and DSA ports do not have a netdevice associated |
10359 | * case should not ever happen. | |
10360 | */ | |
10361 | WARN_ON(1); | |
10362 | return -EINVAL; | |
98fd2d65 | 10363 | case DEVLINK_PORT_FLAVOUR_PCI_PF: |
66b17082 PP |
10364 | if (attrs->pci_pf.external) { |
10365 | n = snprintf(name, len, "c%u", attrs->pci_pf.controller); | |
10366 | if (n >= len) | |
10367 | return -EINVAL; | |
10368 | len -= n; | |
10369 | name += n; | |
10370 | } | |
98fd2d65 PP |
10371 | n = snprintf(name, len, "pf%u", attrs->pci_pf.pf); |
10372 | break; | |
e41b6bf3 | 10373 | case DEVLINK_PORT_FLAVOUR_PCI_VF: |
66b17082 PP |
10374 | if (attrs->pci_vf.external) { |
10375 | n = snprintf(name, len, "c%u", attrs->pci_vf.controller); | |
10376 | if (n >= len) | |
10377 | return -EINVAL; | |
10378 | len -= n; | |
10379 | name += n; | |
10380 | } | |
e41b6bf3 PP |
10381 | n = snprintf(name, len, "pf%uvf%u", |
10382 | attrs->pci_vf.pf, attrs->pci_vf.vf); | |
10383 | break; | |
b8288837 | 10384 | case DEVLINK_PORT_FLAVOUR_PCI_SF: |
a1ab3e45 PP |
10385 | if (attrs->pci_sf.external) { |
10386 | n = snprintf(name, len, "c%u", attrs->pci_sf.controller); | |
10387 | if (n >= len) | |
10388 | return -EINVAL; | |
10389 | len -= n; | |
10390 | name += n; | |
10391 | } | |
b8288837 PP |
10392 | n = snprintf(name, len, "pf%usf%u", attrs->pci_sf.pf, |
10393 | attrs->pci_sf.sf); | |
10394 | break; | |
149ea30f PP |
10395 | case DEVLINK_PORT_FLAVOUR_VIRTUAL: |
10396 | return -EOPNOTSUPP; | |
08474c1a JP |
10397 | } |
10398 | ||
10399 | if (n >= len) | |
10400 | return -EINVAL; | |
10401 | ||
10402 | return 0; | |
10403 | } | |
af3836df | 10404 | |
fcdc8ce2 JP |
10405 | static int devlink_linecard_types_init(struct devlink_linecard *linecard) |
10406 | { | |
10407 | struct devlink_linecard_type *linecard_type; | |
10408 | unsigned int count; | |
10409 | int i; | |
10410 | ||
10411 | count = linecard->ops->types_count(linecard, linecard->priv); | |
10412 | linecard->types = kmalloc_array(count, sizeof(*linecard_type), | |
10413 | GFP_KERNEL); | |
10414 | if (!linecard->types) | |
10415 | return -ENOMEM; | |
10416 | linecard->types_count = count; | |
10417 | ||
10418 | for (i = 0; i < count; i++) { | |
10419 | linecard_type = &linecard->types[i]; | |
10420 | linecard->ops->types_get(linecard, linecard->priv, i, | |
10421 | &linecard_type->type, | |
10422 | &linecard_type->priv); | |
10423 | } | |
10424 | return 0; | |
10425 | } | |
10426 | ||
10427 | static void devlink_linecard_types_fini(struct devlink_linecard *linecard) | |
10428 | { | |
10429 | kfree(linecard->types); | |
10430 | } | |
10431 | ||
c246f9b5 JP |
10432 | /** |
10433 | * devlink_linecard_create - Create devlink linecard | |
10434 | * | |
10435 | * @devlink: devlink | |
10436 | * @linecard_index: driver-specific numerical identifier of the linecard | |
fcdc8ce2 JP |
10437 | * @ops: linecards ops |
10438 | * @priv: user priv pointer | |
c246f9b5 JP |
10439 | * |
10440 | * Create devlink linecard instance with provided linecard index. | |
10441 | * Caller can use any indexing, even hw-related one. | |
fcdc8ce2 JP |
10442 | * |
10443 | * Return: Line card structure or an ERR_PTR() encoded error code. | |
c246f9b5 | 10444 | */ |
fcdc8ce2 JP |
10445 | struct devlink_linecard * |
10446 | devlink_linecard_create(struct devlink *devlink, unsigned int linecard_index, | |
10447 | const struct devlink_linecard_ops *ops, void *priv) | |
c246f9b5 JP |
10448 | { |
10449 | struct devlink_linecard *linecard; | |
fcdc8ce2 JP |
10450 | int err; |
10451 | ||
10452 | if (WARN_ON(!ops || !ops->provision || !ops->unprovision || | |
10453 | !ops->types_count || !ops->types_get)) | |
10454 | return ERR_PTR(-EINVAL); | |
c246f9b5 JP |
10455 | |
10456 | mutex_lock(&devlink->linecards_lock); | |
10457 | if (devlink_linecard_index_exists(devlink, linecard_index)) { | |
10458 | mutex_unlock(&devlink->linecards_lock); | |
10459 | return ERR_PTR(-EEXIST); | |
10460 | } | |
10461 | ||
10462 | linecard = kzalloc(sizeof(*linecard), GFP_KERNEL); | |
10463 | if (!linecard) { | |
10464 | mutex_unlock(&devlink->linecards_lock); | |
10465 | return ERR_PTR(-ENOMEM); | |
10466 | } | |
10467 | ||
10468 | linecard->devlink = devlink; | |
10469 | linecard->index = linecard_index; | |
fcdc8ce2 JP |
10470 | linecard->ops = ops; |
10471 | linecard->priv = priv; | |
10472 | linecard->state = DEVLINK_LINECARD_STATE_UNPROVISIONED; | |
10473 | mutex_init(&linecard->state_lock); | |
10474 | ||
10475 | err = devlink_linecard_types_init(linecard); | |
10476 | if (err) { | |
10477 | mutex_destroy(&linecard->state_lock); | |
10478 | kfree(linecard); | |
10479 | mutex_unlock(&devlink->linecards_lock); | |
10480 | return ERR_PTR(err); | |
10481 | } | |
10482 | ||
c246f9b5 JP |
10483 | list_add_tail(&linecard->list, &devlink->linecard_list); |
10484 | refcount_set(&linecard->refcount, 1); | |
10485 | mutex_unlock(&devlink->linecards_lock); | |
10486 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
10487 | return linecard; | |
10488 | } | |
10489 | EXPORT_SYMBOL_GPL(devlink_linecard_create); | |
10490 | ||
10491 | /** | |
10492 | * devlink_linecard_destroy - Destroy devlink linecard | |
10493 | * | |
10494 | * @linecard: devlink linecard | |
10495 | */ | |
10496 | void devlink_linecard_destroy(struct devlink_linecard *linecard) | |
10497 | { | |
10498 | struct devlink *devlink = linecard->devlink; | |
10499 | ||
10500 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_DEL); | |
10501 | mutex_lock(&devlink->linecards_lock); | |
10502 | list_del(&linecard->list); | |
fcdc8ce2 | 10503 | devlink_linecard_types_fini(linecard); |
c246f9b5 JP |
10504 | mutex_unlock(&devlink->linecards_lock); |
10505 | devlink_linecard_put(linecard); | |
10506 | } | |
10507 | EXPORT_SYMBOL_GPL(devlink_linecard_destroy); | |
10508 | ||
fcdc8ce2 JP |
10509 | /** |
10510 | * devlink_linecard_provision_set - Set provisioning on linecard | |
10511 | * | |
10512 | * @linecard: devlink linecard | |
10513 | * @type: linecard type | |
10514 | * | |
10515 | * This is either called directly from the provision() op call or | |
10516 | * as a result of the provision() op call asynchronously. | |
10517 | */ | |
10518 | void devlink_linecard_provision_set(struct devlink_linecard *linecard, | |
10519 | const char *type) | |
10520 | { | |
10521 | mutex_lock(&linecard->state_lock); | |
10522 | WARN_ON(linecard->type && strcmp(linecard->type, type)); | |
10523 | linecard->state = DEVLINK_LINECARD_STATE_PROVISIONED; | |
10524 | linecard->type = type; | |
10525 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
10526 | mutex_unlock(&linecard->state_lock); | |
10527 | } | |
10528 | EXPORT_SYMBOL_GPL(devlink_linecard_provision_set); | |
10529 | ||
10530 | /** | |
10531 | * devlink_linecard_provision_clear - Clear provisioning on linecard | |
10532 | * | |
10533 | * @linecard: devlink linecard | |
10534 | * | |
10535 | * This is either called directly from the unprovision() op call or | |
10536 | * as a result of the unprovision() op call asynchronously. | |
10537 | */ | |
10538 | void devlink_linecard_provision_clear(struct devlink_linecard *linecard) | |
10539 | { | |
10540 | mutex_lock(&linecard->state_lock); | |
7b2d9a1a | 10541 | WARN_ON(linecard->nested_devlink); |
fcdc8ce2 JP |
10542 | linecard->state = DEVLINK_LINECARD_STATE_UNPROVISIONED; |
10543 | linecard->type = NULL; | |
10544 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
10545 | mutex_unlock(&linecard->state_lock); | |
10546 | } | |
10547 | EXPORT_SYMBOL_GPL(devlink_linecard_provision_clear); | |
10548 | ||
10549 | /** | |
10550 | * devlink_linecard_provision_fail - Fail provisioning on linecard | |
10551 | * | |
10552 | * @linecard: devlink linecard | |
10553 | * | |
10554 | * This is either called directly from the provision() op call or | |
10555 | * as a result of the provision() op call asynchronously. | |
10556 | */ | |
10557 | void devlink_linecard_provision_fail(struct devlink_linecard *linecard) | |
10558 | { | |
10559 | mutex_lock(&linecard->state_lock); | |
7b2d9a1a | 10560 | WARN_ON(linecard->nested_devlink); |
fcdc8ce2 JP |
10561 | linecard->state = DEVLINK_LINECARD_STATE_PROVISIONING_FAILED; |
10562 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
10563 | mutex_unlock(&linecard->state_lock); | |
10564 | } | |
10565 | EXPORT_SYMBOL_GPL(devlink_linecard_provision_fail); | |
10566 | ||
fc9f50d5 JP |
10567 | /** |
10568 | * devlink_linecard_activate - Set linecard active | |
10569 | * | |
10570 | * @linecard: devlink linecard | |
10571 | */ | |
10572 | void devlink_linecard_activate(struct devlink_linecard *linecard) | |
10573 | { | |
10574 | mutex_lock(&linecard->state_lock); | |
10575 | WARN_ON(linecard->state != DEVLINK_LINECARD_STATE_PROVISIONED); | |
10576 | linecard->state = DEVLINK_LINECARD_STATE_ACTIVE; | |
10577 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
10578 | mutex_unlock(&linecard->state_lock); | |
10579 | } | |
10580 | EXPORT_SYMBOL_GPL(devlink_linecard_activate); | |
10581 | ||
10582 | /** | |
10583 | * devlink_linecard_deactivate - Set linecard inactive | |
10584 | * | |
10585 | * @linecard: devlink linecard | |
10586 | */ | |
10587 | void devlink_linecard_deactivate(struct devlink_linecard *linecard) | |
10588 | { | |
10589 | mutex_lock(&linecard->state_lock); | |
10590 | switch (linecard->state) { | |
10591 | case DEVLINK_LINECARD_STATE_ACTIVE: | |
10592 | linecard->state = DEVLINK_LINECARD_STATE_PROVISIONED; | |
10593 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
10594 | break; | |
10595 | case DEVLINK_LINECARD_STATE_UNPROVISIONING: | |
10596 | /* Line card is being deactivated as part | |
10597 | * of unprovisioning flow. | |
10598 | */ | |
10599 | break; | |
10600 | default: | |
10601 | WARN_ON(1); | |
10602 | break; | |
10603 | } | |
10604 | mutex_unlock(&linecard->state_lock); | |
10605 | } | |
10606 | EXPORT_SYMBOL_GPL(devlink_linecard_deactivate); | |
10607 | ||
7b2d9a1a JP |
10608 | /** |
10609 | * devlink_linecard_nested_dl_set - Attach/detach nested devlink | |
10610 | * instance to linecard. | |
10611 | * | |
10612 | * @linecard: devlink linecard | |
10613 | * @nested_devlink: devlink instance to attach or NULL to detach | |
10614 | */ | |
10615 | void devlink_linecard_nested_dl_set(struct devlink_linecard *linecard, | |
10616 | struct devlink *nested_devlink) | |
10617 | { | |
10618 | mutex_lock(&linecard->state_lock); | |
10619 | linecard->nested_devlink = nested_devlink; | |
10620 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
10621 | mutex_unlock(&linecard->state_lock); | |
10622 | } | |
10623 | EXPORT_SYMBOL_GPL(devlink_linecard_nested_dl_set); | |
10624 | ||
755cfa69 JP |
10625 | int devl_sb_register(struct devlink *devlink, unsigned int sb_index, |
10626 | u32 size, u16 ingress_pools_count, | |
10627 | u16 egress_pools_count, u16 ingress_tc_count, | |
10628 | u16 egress_tc_count) | |
bf797471 JP |
10629 | { |
10630 | struct devlink_sb *devlink_sb; | |
bf797471 | 10631 | |
755cfa69 JP |
10632 | lockdep_assert_held(&devlink->lock); |
10633 | ||
10634 | if (devlink_sb_index_exists(devlink, sb_index)) | |
10635 | return -EEXIST; | |
bf797471 JP |
10636 | |
10637 | devlink_sb = kzalloc(sizeof(*devlink_sb), GFP_KERNEL); | |
755cfa69 JP |
10638 | if (!devlink_sb) |
10639 | return -ENOMEM; | |
bf797471 JP |
10640 | devlink_sb->index = sb_index; |
10641 | devlink_sb->size = size; | |
10642 | devlink_sb->ingress_pools_count = ingress_pools_count; | |
10643 | devlink_sb->egress_pools_count = egress_pools_count; | |
10644 | devlink_sb->ingress_tc_count = ingress_tc_count; | |
10645 | devlink_sb->egress_tc_count = egress_tc_count; | |
10646 | list_add_tail(&devlink_sb->list, &devlink->sb_list); | |
755cfa69 JP |
10647 | return 0; |
10648 | } | |
10649 | EXPORT_SYMBOL_GPL(devl_sb_register); | |
10650 | ||
10651 | int devlink_sb_register(struct devlink *devlink, unsigned int sb_index, | |
10652 | u32 size, u16 ingress_pools_count, | |
10653 | u16 egress_pools_count, u16 ingress_tc_count, | |
10654 | u16 egress_tc_count) | |
10655 | { | |
10656 | int err; | |
10657 | ||
10658 | devl_lock(devlink); | |
10659 | err = devl_sb_register(devlink, sb_index, size, ingress_pools_count, | |
10660 | egress_pools_count, ingress_tc_count, | |
10661 | egress_tc_count); | |
7715023a | 10662 | devl_unlock(devlink); |
bf797471 JP |
10663 | return err; |
10664 | } | |
10665 | EXPORT_SYMBOL_GPL(devlink_sb_register); | |
10666 | ||
755cfa69 | 10667 | void devl_sb_unregister(struct devlink *devlink, unsigned int sb_index) |
bf797471 JP |
10668 | { |
10669 | struct devlink_sb *devlink_sb; | |
10670 | ||
755cfa69 JP |
10671 | lockdep_assert_held(&devlink->lock); |
10672 | ||
bf797471 JP |
10673 | devlink_sb = devlink_sb_get_by_index(devlink, sb_index); |
10674 | WARN_ON(!devlink_sb); | |
10675 | list_del(&devlink_sb->list); | |
bf797471 JP |
10676 | kfree(devlink_sb); |
10677 | } | |
755cfa69 JP |
10678 | EXPORT_SYMBOL_GPL(devl_sb_unregister); |
10679 | ||
10680 | void devlink_sb_unregister(struct devlink *devlink, unsigned int sb_index) | |
10681 | { | |
10682 | devl_lock(devlink); | |
10683 | devl_sb_unregister(devlink, sb_index); | |
10684 | devl_unlock(devlink); | |
10685 | } | |
bf797471 JP |
10686 | EXPORT_SYMBOL_GPL(devlink_sb_unregister); |
10687 | ||
70a2ff89 JP |
10688 | /** |
10689 | * devl_dpipe_headers_register - register dpipe headers | |
10690 | * | |
10691 | * @devlink: devlink | |
10692 | * @dpipe_headers: dpipe header array | |
10693 | * | |
10694 | * Register the headers supported by hardware. | |
10695 | */ | |
10696 | void devl_dpipe_headers_register(struct devlink *devlink, | |
10697 | struct devlink_dpipe_headers *dpipe_headers) | |
10698 | { | |
10699 | lockdep_assert_held(&devlink->lock); | |
10700 | ||
10701 | devlink->dpipe_headers = dpipe_headers; | |
10702 | } | |
10703 | EXPORT_SYMBOL_GPL(devl_dpipe_headers_register); | |
10704 | ||
70a2ff89 JP |
10705 | /** |
10706 | * devl_dpipe_headers_unregister - unregister dpipe headers | |
10707 | * | |
10708 | * @devlink: devlink | |
10709 | * | |
10710 | * Unregister the headers supported by hardware. | |
10711 | */ | |
10712 | void devl_dpipe_headers_unregister(struct devlink *devlink) | |
10713 | { | |
10714 | lockdep_assert_held(&devlink->lock); | |
10715 | ||
10716 | devlink->dpipe_headers = NULL; | |
10717 | } | |
10718 | EXPORT_SYMBOL_GPL(devl_dpipe_headers_unregister); | |
10719 | ||
1555d204 AS |
10720 | /** |
10721 | * devlink_dpipe_table_counter_enabled - check if counter allocation | |
10722 | * required | |
10723 | * @devlink: devlink | |
10724 | * @table_name: tables name | |
10725 | * | |
10726 | * Used by driver to check if counter allocation is required. | |
10727 | * After counter allocation is turned on the table entries | |
10728 | * are updated to include counter statistics. | |
10729 | * | |
10730 | * After that point on the driver must respect the counter | |
10731 | * state so that each entry added to the table is added | |
10732 | * with a counter. | |
10733 | */ | |
10734 | bool devlink_dpipe_table_counter_enabled(struct devlink *devlink, | |
10735 | const char *table_name) | |
10736 | { | |
10737 | struct devlink_dpipe_table *table; | |
10738 | bool enabled; | |
10739 | ||
10740 | rcu_read_lock(); | |
10741 | table = devlink_dpipe_table_find(&devlink->dpipe_table_list, | |
2eb51c75 | 10742 | table_name, devlink); |
1555d204 AS |
10743 | enabled = false; |
10744 | if (table) | |
10745 | enabled = table->counters_enabled; | |
10746 | rcu_read_unlock(); | |
10747 | return enabled; | |
10748 | } | |
10749 | EXPORT_SYMBOL_GPL(devlink_dpipe_table_counter_enabled); | |
10750 | ||
10751 | /** | |
70a2ff89 | 10752 | * devl_dpipe_table_register - register dpipe table |
1555d204 | 10753 | * |
70a2ff89 JP |
10754 | * @devlink: devlink |
10755 | * @table_name: table name | |
10756 | * @table_ops: table ops | |
10757 | * @priv: priv | |
10758 | * @counter_control_extern: external control for counters | |
1555d204 | 10759 | */ |
70a2ff89 JP |
10760 | int devl_dpipe_table_register(struct devlink *devlink, |
10761 | const char *table_name, | |
10762 | struct devlink_dpipe_table_ops *table_ops, | |
10763 | void *priv, bool counter_control_extern) | |
1555d204 AS |
10764 | { |
10765 | struct devlink_dpipe_table *table; | |
70a2ff89 JP |
10766 | |
10767 | lockdep_assert_held(&devlink->lock); | |
1555d204 | 10768 | |
ffd3cdcc AS |
10769 | if (WARN_ON(!table_ops->size_get)) |
10770 | return -EINVAL; | |
10771 | ||
2eb51c75 | 10772 | if (devlink_dpipe_table_find(&devlink->dpipe_table_list, table_name, |
70a2ff89 JP |
10773 | devlink)) |
10774 | return -EEXIST; | |
6132c1d9 | 10775 | |
1555d204 | 10776 | table = kzalloc(sizeof(*table), GFP_KERNEL); |
70a2ff89 JP |
10777 | if (!table) |
10778 | return -ENOMEM; | |
1555d204 AS |
10779 | |
10780 | table->name = table_name; | |
10781 | table->table_ops = table_ops; | |
10782 | table->priv = priv; | |
1555d204 AS |
10783 | table->counter_control_extern = counter_control_extern; |
10784 | ||
1555d204 | 10785 | list_add_tail_rcu(&table->list, &devlink->dpipe_table_list); |
70a2ff89 JP |
10786 | |
10787 | return 0; | |
10788 | } | |
10789 | EXPORT_SYMBOL_GPL(devl_dpipe_table_register); | |
10790 | ||
1555d204 | 10791 | /** |
70a2ff89 | 10792 | * devl_dpipe_table_unregister - unregister dpipe table |
1555d204 | 10793 | * |
70a2ff89 JP |
10794 | * @devlink: devlink |
10795 | * @table_name: table name | |
1555d204 | 10796 | */ |
70a2ff89 JP |
10797 | void devl_dpipe_table_unregister(struct devlink *devlink, |
10798 | const char *table_name) | |
1555d204 AS |
10799 | { |
10800 | struct devlink_dpipe_table *table; | |
10801 | ||
70a2ff89 JP |
10802 | lockdep_assert_held(&devlink->lock); |
10803 | ||
1555d204 | 10804 | table = devlink_dpipe_table_find(&devlink->dpipe_table_list, |
2eb51c75 | 10805 | table_name, devlink); |
1555d204 | 10806 | if (!table) |
70a2ff89 | 10807 | return; |
1555d204 | 10808 | list_del_rcu(&table->list); |
1555d204 | 10809 | kfree_rcu(table, rcu); |
70a2ff89 JP |
10810 | } |
10811 | EXPORT_SYMBOL_GPL(devl_dpipe_table_unregister); | |
10812 | ||
d9f9b9a4 | 10813 | /** |
c223d6a4 | 10814 | * devl_resource_register - devlink resource register |
d9f9b9a4 | 10815 | * |
c223d6a4 JP |
10816 | * @devlink: devlink |
10817 | * @resource_name: resource's name | |
10818 | * @resource_size: resource's size | |
10819 | * @resource_id: resource's id | |
10820 | * @parent_resource_id: resource's parent id | |
10821 | * @size_params: size parameters | |
321f7ab0 | 10822 | * |
c223d6a4 JP |
10823 | * Generic resources should reuse the same names across drivers. |
10824 | * Please see the generic resources list at: | |
10825 | * Documentation/networking/devlink/devlink-resource.rst | |
d9f9b9a4 | 10826 | */ |
c223d6a4 JP |
10827 | int devl_resource_register(struct devlink *devlink, |
10828 | const char *resource_name, | |
10829 | u64 resource_size, | |
10830 | u64 resource_id, | |
10831 | u64 parent_resource_id, | |
10832 | const struct devlink_resource_size_params *size_params) | |
d9f9b9a4 AS |
10833 | { |
10834 | struct devlink_resource *resource; | |
10835 | struct list_head *resource_list; | |
14530746 | 10836 | bool top_hierarchy; |
c223d6a4 JP |
10837 | |
10838 | lockdep_assert_held(&devlink->lock); | |
d9f9b9a4 | 10839 | |
14530746 DA |
10840 | top_hierarchy = parent_resource_id == DEVLINK_RESOURCE_ID_PARENT_TOP; |
10841 | ||
d9f9b9a4 | 10842 | resource = devlink_resource_find(devlink, NULL, resource_id); |
c223d6a4 JP |
10843 | if (resource) |
10844 | return -EINVAL; | |
d9f9b9a4 AS |
10845 | |
10846 | resource = kzalloc(sizeof(*resource), GFP_KERNEL); | |
c223d6a4 JP |
10847 | if (!resource) |
10848 | return -ENOMEM; | |
d9f9b9a4 AS |
10849 | |
10850 | if (top_hierarchy) { | |
10851 | resource_list = &devlink->resource_list; | |
10852 | } else { | |
10853 | struct devlink_resource *parent_resource; | |
10854 | ||
10855 | parent_resource = devlink_resource_find(devlink, NULL, | |
10856 | parent_resource_id); | |
10857 | if (parent_resource) { | |
10858 | resource_list = &parent_resource->resource_list; | |
10859 | resource->parent = parent_resource; | |
10860 | } else { | |
b75703de | 10861 | kfree(resource); |
c223d6a4 | 10862 | return -EINVAL; |
d9f9b9a4 AS |
10863 | } |
10864 | } | |
10865 | ||
10866 | resource->name = resource_name; | |
10867 | resource->size = resource_size; | |
10868 | resource->size_new = resource_size; | |
10869 | resource->id = resource_id; | |
d9f9b9a4 | 10870 | resource->size_valid = true; |
77d27096 JP |
10871 | memcpy(&resource->size_params, size_params, |
10872 | sizeof(resource->size_params)); | |
d9f9b9a4 AS |
10873 | INIT_LIST_HEAD(&resource->resource_list); |
10874 | list_add_tail(&resource->list, resource_list); | |
c223d6a4 JP |
10875 | |
10876 | return 0; | |
10877 | } | |
10878 | EXPORT_SYMBOL_GPL(devl_resource_register); | |
10879 | ||
10880 | /** | |
10881 | * devlink_resource_register - devlink resource register | |
10882 | * | |
10883 | * @devlink: devlink | |
10884 | * @resource_name: resource's name | |
10885 | * @resource_size: resource's size | |
10886 | * @resource_id: resource's id | |
10887 | * @parent_resource_id: resource's parent id | |
10888 | * @size_params: size parameters | |
10889 | * | |
10890 | * Generic resources should reuse the same names across drivers. | |
10891 | * Please see the generic resources list at: | |
10892 | * Documentation/networking/devlink/devlink-resource.rst | |
10893 | * | |
10894 | * Context: Takes and release devlink->lock <mutex>. | |
10895 | */ | |
10896 | int devlink_resource_register(struct devlink *devlink, | |
10897 | const char *resource_name, | |
10898 | u64 resource_size, | |
10899 | u64 resource_id, | |
10900 | u64 parent_resource_id, | |
10901 | const struct devlink_resource_size_params *size_params) | |
10902 | { | |
10903 | int err; | |
10904 | ||
10905 | devl_lock(devlink); | |
10906 | err = devl_resource_register(devlink, resource_name, resource_size, | |
10907 | resource_id, parent_resource_id, size_params); | |
7715023a | 10908 | devl_unlock(devlink); |
d9f9b9a4 AS |
10909 | return err; |
10910 | } | |
10911 | EXPORT_SYMBOL_GPL(devlink_resource_register); | |
10912 | ||
4c897cfc LR |
10913 | static void devlink_resource_unregister(struct devlink *devlink, |
10914 | struct devlink_resource *resource) | |
10915 | { | |
10916 | struct devlink_resource *tmp, *child_resource; | |
10917 | ||
10918 | list_for_each_entry_safe(child_resource, tmp, &resource->resource_list, | |
10919 | list) { | |
10920 | devlink_resource_unregister(devlink, child_resource); | |
10921 | list_del(&child_resource->list); | |
10922 | kfree(child_resource); | |
10923 | } | |
10924 | } | |
10925 | ||
d9f9b9a4 | 10926 | /** |
c223d6a4 | 10927 | * devl_resources_unregister - free all resources |
d9f9b9a4 | 10928 | * |
c223d6a4 | 10929 | * @devlink: devlink |
d9f9b9a4 | 10930 | */ |
c223d6a4 | 10931 | void devl_resources_unregister(struct devlink *devlink) |
d9f9b9a4 AS |
10932 | { |
10933 | struct devlink_resource *tmp, *child_resource; | |
d9f9b9a4 | 10934 | |
c223d6a4 | 10935 | lockdep_assert_held(&devlink->lock); |
d9f9b9a4 | 10936 | |
4c897cfc LR |
10937 | list_for_each_entry_safe(child_resource, tmp, &devlink->resource_list, |
10938 | list) { | |
10939 | devlink_resource_unregister(devlink, child_resource); | |
d9f9b9a4 AS |
10940 | list_del(&child_resource->list); |
10941 | kfree(child_resource); | |
10942 | } | |
c223d6a4 JP |
10943 | } |
10944 | EXPORT_SYMBOL_GPL(devl_resources_unregister); | |
d9f9b9a4 | 10945 | |
c223d6a4 JP |
10946 | /** |
10947 | * devlink_resources_unregister - free all resources | |
10948 | * | |
10949 | * @devlink: devlink | |
10950 | * | |
10951 | * Context: Takes and release devlink->lock <mutex>. | |
10952 | */ | |
10953 | void devlink_resources_unregister(struct devlink *devlink) | |
10954 | { | |
10955 | devl_lock(devlink); | |
10956 | devl_resources_unregister(devlink); | |
7715023a | 10957 | devl_unlock(devlink); |
d9f9b9a4 AS |
10958 | } |
10959 | EXPORT_SYMBOL_GPL(devlink_resources_unregister); | |
10960 | ||
c223d6a4 JP |
10961 | /** |
10962 | * devl_resource_size_get - get and update size | |
10963 | * | |
10964 | * @devlink: devlink | |
10965 | * @resource_id: the requested resource id | |
10966 | * @p_resource_size: ptr to update | |
10967 | */ | |
10968 | int devl_resource_size_get(struct devlink *devlink, | |
10969 | u64 resource_id, | |
10970 | u64 *p_resource_size) | |
10971 | { | |
10972 | struct devlink_resource *resource; | |
10973 | ||
10974 | lockdep_assert_held(&devlink->lock); | |
10975 | ||
10976 | resource = devlink_resource_find(devlink, NULL, resource_id); | |
10977 | if (!resource) | |
10978 | return -EINVAL; | |
10979 | *p_resource_size = resource->size_new; | |
10980 | resource->size = resource->size_new; | |
10981 | return 0; | |
10982 | } | |
10983 | EXPORT_SYMBOL_GPL(devl_resource_size_get); | |
10984 | ||
70a2ff89 JP |
10985 | /** |
10986 | * devl_dpipe_table_resource_set - set the resource id | |
10987 | * | |
10988 | * @devlink: devlink | |
10989 | * @table_name: table name | |
10990 | * @resource_id: resource id | |
10991 | * @resource_units: number of resource's units consumed per table's entry | |
10992 | */ | |
10993 | int devl_dpipe_table_resource_set(struct devlink *devlink, | |
10994 | const char *table_name, u64 resource_id, | |
10995 | u64 resource_units) | |
10996 | { | |
10997 | struct devlink_dpipe_table *table; | |
10998 | ||
10999 | table = devlink_dpipe_table_find(&devlink->dpipe_table_list, | |
11000 | table_name, devlink); | |
11001 | if (!table) | |
11002 | return -EINVAL; | |
11003 | ||
11004 | table->resource_id = resource_id; | |
11005 | table->resource_units = resource_units; | |
11006 | table->resource_valid = true; | |
11007 | return 0; | |
11008 | } | |
11009 | EXPORT_SYMBOL_GPL(devl_dpipe_table_resource_set); | |
11010 | ||
c223d6a4 JP |
11011 | /** |
11012 | * devl_resource_occ_get_register - register occupancy getter | |
11013 | * | |
11014 | * @devlink: devlink | |
11015 | * @resource_id: resource id | |
11016 | * @occ_get: occupancy getter callback | |
11017 | * @occ_get_priv: occupancy getter callback priv | |
11018 | */ | |
11019 | void devl_resource_occ_get_register(struct devlink *devlink, | |
11020 | u64 resource_id, | |
11021 | devlink_resource_occ_get_t *occ_get, | |
11022 | void *occ_get_priv) | |
11023 | { | |
11024 | struct devlink_resource *resource; | |
11025 | ||
11026 | lockdep_assert_held(&devlink->lock); | |
11027 | ||
11028 | resource = devlink_resource_find(devlink, NULL, resource_id); | |
11029 | if (WARN_ON(!resource)) | |
11030 | return; | |
11031 | WARN_ON(resource->occ_get); | |
11032 | ||
11033 | resource->occ_get = occ_get; | |
11034 | resource->occ_get_priv = occ_get_priv; | |
11035 | } | |
11036 | EXPORT_SYMBOL_GPL(devl_resource_occ_get_register); | |
11037 | ||
fc56be47 JP |
11038 | /** |
11039 | * devlink_resource_occ_get_register - register occupancy getter | |
11040 | * | |
11041 | * @devlink: devlink | |
11042 | * @resource_id: resource id | |
11043 | * @occ_get: occupancy getter callback | |
11044 | * @occ_get_priv: occupancy getter callback priv | |
c223d6a4 JP |
11045 | * |
11046 | * Context: Takes and release devlink->lock <mutex>. | |
fc56be47 JP |
11047 | */ |
11048 | void devlink_resource_occ_get_register(struct devlink *devlink, | |
11049 | u64 resource_id, | |
11050 | devlink_resource_occ_get_t *occ_get, | |
11051 | void *occ_get_priv) | |
11052 | { | |
7715023a | 11053 | devl_lock(devlink); |
c223d6a4 JP |
11054 | devl_resource_occ_get_register(devlink, resource_id, |
11055 | occ_get, occ_get_priv); | |
7715023a | 11056 | devl_unlock(devlink); |
fc56be47 JP |
11057 | } |
11058 | EXPORT_SYMBOL_GPL(devlink_resource_occ_get_register); | |
11059 | ||
11060 | /** | |
c223d6a4 | 11061 | * devl_resource_occ_get_unregister - unregister occupancy getter |
fc56be47 | 11062 | * |
c223d6a4 JP |
11063 | * @devlink: devlink |
11064 | * @resource_id: resource id | |
fc56be47 | 11065 | */ |
c223d6a4 JP |
11066 | void devl_resource_occ_get_unregister(struct devlink *devlink, |
11067 | u64 resource_id) | |
fc56be47 JP |
11068 | { |
11069 | struct devlink_resource *resource; | |
11070 | ||
c223d6a4 JP |
11071 | lockdep_assert_held(&devlink->lock); |
11072 | ||
fc56be47 JP |
11073 | resource = devlink_resource_find(devlink, NULL, resource_id); |
11074 | if (WARN_ON(!resource)) | |
c223d6a4 | 11075 | return; |
fc56be47 JP |
11076 | WARN_ON(!resource->occ_get); |
11077 | ||
11078 | resource->occ_get = NULL; | |
11079 | resource->occ_get_priv = NULL; | |
c223d6a4 JP |
11080 | } |
11081 | EXPORT_SYMBOL_GPL(devl_resource_occ_get_unregister); | |
11082 | ||
11083 | /** | |
11084 | * devlink_resource_occ_get_unregister - unregister occupancy getter | |
11085 | * | |
11086 | * @devlink: devlink | |
11087 | * @resource_id: resource id | |
11088 | * | |
11089 | * Context: Takes and release devlink->lock <mutex>. | |
11090 | */ | |
11091 | void devlink_resource_occ_get_unregister(struct devlink *devlink, | |
11092 | u64 resource_id) | |
11093 | { | |
11094 | devl_lock(devlink); | |
11095 | devl_resource_occ_get_unregister(devlink, resource_id); | |
7715023a | 11096 | devl_unlock(devlink); |
fc56be47 JP |
11097 | } |
11098 | EXPORT_SYMBOL_GPL(devlink_resource_occ_get_unregister); | |
11099 | ||
39e6160e VV |
11100 | static int devlink_param_verify(const struct devlink_param *param) |
11101 | { | |
11102 | if (!param || !param->name || !param->supported_cmodes) | |
11103 | return -EINVAL; | |
11104 | if (param->generic) | |
11105 | return devlink_param_generic_verify(param); | |
11106 | else | |
11107 | return devlink_param_driver_verify(param); | |
11108 | } | |
11109 | ||
39e6160e VV |
11110 | /** |
11111 | * devlink_params_register - register configuration parameters | |
11112 | * | |
11113 | * @devlink: devlink | |
11114 | * @params: configuration parameters array | |
11115 | * @params_count: number of parameters provided | |
11116 | * | |
11117 | * Register the configuration parameters supported by the driver. | |
11118 | */ | |
11119 | int devlink_params_register(struct devlink *devlink, | |
11120 | const struct devlink_param *params, | |
11121 | size_t params_count) | |
11122 | { | |
ee775b56 LR |
11123 | const struct devlink_param *param = params; |
11124 | int i, err; | |
11125 | ||
7a690ad4 LR |
11126 | ASSERT_DEVLINK_NOT_REGISTERED(devlink); |
11127 | ||
ee775b56 LR |
11128 | for (i = 0; i < params_count; i++, param++) { |
11129 | err = devlink_param_register(devlink, param); | |
11130 | if (err) | |
11131 | goto rollback; | |
11132 | } | |
11133 | return 0; | |
11134 | ||
11135 | rollback: | |
11136 | if (!i) | |
11137 | return err; | |
11138 | ||
11139 | for (param--; i > 0; i--, param--) | |
11140 | devlink_param_unregister(devlink, param); | |
11141 | return err; | |
39e6160e | 11142 | } |
eabaef18 MS |
11143 | EXPORT_SYMBOL_GPL(devlink_params_register); |
11144 | ||
11145 | /** | |
11146 | * devlink_params_unregister - unregister configuration parameters | |
11147 | * @devlink: devlink | |
11148 | * @params: configuration parameters to unregister | |
11149 | * @params_count: number of parameters provided | |
11150 | */ | |
11151 | void devlink_params_unregister(struct devlink *devlink, | |
11152 | const struct devlink_param *params, | |
11153 | size_t params_count) | |
11154 | { | |
ee775b56 LR |
11155 | const struct devlink_param *param = params; |
11156 | int i; | |
11157 | ||
7a690ad4 LR |
11158 | ASSERT_DEVLINK_NOT_REGISTERED(devlink); |
11159 | ||
ee775b56 LR |
11160 | for (i = 0; i < params_count; i++, param++) |
11161 | devlink_param_unregister(devlink, param); | |
eabaef18 MS |
11162 | } |
11163 | EXPORT_SYMBOL_GPL(devlink_params_unregister); | |
11164 | ||
b40c51ef PP |
11165 | /** |
11166 | * devlink_param_register - register one configuration parameter | |
11167 | * | |
11168 | * @devlink: devlink | |
11169 | * @param: one configuration parameter | |
11170 | * | |
11171 | * Register the configuration parameter supported by the driver. | |
11172 | * Return: returns 0 on successful registration or error code otherwise. | |
11173 | */ | |
11174 | int devlink_param_register(struct devlink *devlink, | |
11175 | const struct devlink_param *param) | |
11176 | { | |
ee775b56 | 11177 | struct devlink_param_item *param_item; |
b40c51ef | 11178 | |
7a690ad4 LR |
11179 | ASSERT_DEVLINK_NOT_REGISTERED(devlink); |
11180 | ||
ee775b56 LR |
11181 | WARN_ON(devlink_param_verify(param)); |
11182 | WARN_ON(devlink_param_find_by_name(&devlink->param_list, param->name)); | |
11183 | ||
11184 | if (param->supported_cmodes == BIT(DEVLINK_PARAM_CMODE_DRIVERINIT)) | |
11185 | WARN_ON(param->get || param->set); | |
11186 | else | |
11187 | WARN_ON(!param->get || !param->set); | |
11188 | ||
11189 | param_item = kzalloc(sizeof(*param_item), GFP_KERNEL); | |
11190 | if (!param_item) | |
11191 | return -ENOMEM; | |
11192 | ||
11193 | param_item->param = param; | |
11194 | ||
11195 | list_add_tail(¶m_item->list, &devlink->param_list); | |
11196 | return 0; | |
b40c51ef PP |
11197 | } |
11198 | EXPORT_SYMBOL_GPL(devlink_param_register); | |
11199 | ||
11200 | /** | |
11201 | * devlink_param_unregister - unregister one configuration parameter | |
11202 | * @devlink: devlink | |
11203 | * @param: configuration parameter to unregister | |
11204 | */ | |
11205 | void devlink_param_unregister(struct devlink *devlink, | |
11206 | const struct devlink_param *param) | |
11207 | { | |
ee775b56 LR |
11208 | struct devlink_param_item *param_item; |
11209 | ||
7a690ad4 LR |
11210 | ASSERT_DEVLINK_NOT_REGISTERED(devlink); |
11211 | ||
ee775b56 LR |
11212 | param_item = |
11213 | devlink_param_find_by_name(&devlink->param_list, param->name); | |
11214 | WARN_ON(!param_item); | |
11215 | list_del(¶m_item->list); | |
11216 | kfree(param_item); | |
b40c51ef PP |
11217 | } |
11218 | EXPORT_SYMBOL_GPL(devlink_param_unregister); | |
11219 | ||
8ba024df LR |
11220 | /** |
11221 | * devlink_param_driverinit_value_get - get configuration parameter | |
11222 | * value for driver initializing | |
11223 | * | |
11224 | * @devlink: devlink | |
11225 | * @param_id: parameter ID | |
11226 | * @init_val: value of parameter in driverinit configuration mode | |
11227 | * | |
11228 | * This function should be used by the driver to get driverinit | |
11229 | * configuration for initialization after reload command. | |
11230 | */ | |
11231 | int devlink_param_driverinit_value_get(struct devlink *devlink, u32 param_id, | |
11232 | union devlink_param_value *init_val) | |
ec01aeb1 MS |
11233 | { |
11234 | struct devlink_param_item *param_item; | |
11235 | ||
8ba024df LR |
11236 | if (!devlink_reload_supported(devlink->ops)) |
11237 | return -EOPNOTSUPP; | |
11238 | ||
11239 | param_item = devlink_param_find_by_id(&devlink->param_list, param_id); | |
ec01aeb1 MS |
11240 | if (!param_item) |
11241 | return -EINVAL; | |
11242 | ||
11243 | if (!param_item->driverinit_value_valid || | |
11244 | !devlink_param_cmode_is_supported(param_item->param, | |
11245 | DEVLINK_PARAM_CMODE_DRIVERINIT)) | |
11246 | return -EOPNOTSUPP; | |
11247 | ||
1276534c MS |
11248 | if (param_item->param->type == DEVLINK_PARAM_TYPE_STRING) |
11249 | strcpy(init_val->vstr, param_item->driverinit_value.vstr); | |
11250 | else | |
11251 | *init_val = param_item->driverinit_value; | |
ec01aeb1 MS |
11252 | |
11253 | return 0; | |
11254 | } | |
8ba024df | 11255 | EXPORT_SYMBOL_GPL(devlink_param_driverinit_value_get); |
ffd19b9a | 11256 | |
8ba024df LR |
11257 | /** |
11258 | * devlink_param_driverinit_value_set - set value of configuration | |
11259 | * parameter for driverinit | |
11260 | * configuration mode | |
11261 | * | |
11262 | * @devlink: devlink | |
11263 | * @param_id: parameter ID | |
11264 | * @init_val: value of parameter to set for driverinit configuration mode | |
11265 | * | |
11266 | * This function should be used by the driver to set driverinit | |
11267 | * configuration mode default value. | |
11268 | */ | |
11269 | int devlink_param_driverinit_value_set(struct devlink *devlink, u32 param_id, | |
11270 | union devlink_param_value init_val) | |
5473a7bd VV |
11271 | { |
11272 | struct devlink_param_item *param_item; | |
11273 | ||
7a690ad4 LR |
11274 | ASSERT_DEVLINK_NOT_REGISTERED(devlink); |
11275 | ||
8ba024df | 11276 | param_item = devlink_param_find_by_id(&devlink->param_list, param_id); |
5473a7bd VV |
11277 | if (!param_item) |
11278 | return -EINVAL; | |
11279 | ||
11280 | if (!devlink_param_cmode_is_supported(param_item->param, | |
11281 | DEVLINK_PARAM_CMODE_DRIVERINIT)) | |
11282 | return -EOPNOTSUPP; | |
11283 | ||
11284 | if (param_item->param->type == DEVLINK_PARAM_TYPE_STRING) | |
11285 | strcpy(param_item->driverinit_value.vstr, init_val.vstr); | |
11286 | else | |
11287 | param_item->driverinit_value = init_val; | |
11288 | param_item->driverinit_value_valid = true; | |
5473a7bd VV |
11289 | return 0; |
11290 | } | |
ec01aeb1 MS |
11291 | EXPORT_SYMBOL_GPL(devlink_param_driverinit_value_set); |
11292 | ||
ea601e17 MS |
11293 | /** |
11294 | * devlink_param_value_changed - notify devlink on a parameter's value | |
11295 | * change. Should be called by the driver | |
11296 | * right after the change. | |
11297 | * | |
11298 | * @devlink: devlink | |
11299 | * @param_id: parameter ID | |
11300 | * | |
11301 | * This function should be used by the driver to notify devlink on value | |
11302 | * change, excluding driverinit configuration mode. | |
11303 | * For driverinit configuration mode driver should use the function | |
ea601e17 MS |
11304 | */ |
11305 | void devlink_param_value_changed(struct devlink *devlink, u32 param_id) | |
11306 | { | |
11307 | struct devlink_param_item *param_item; | |
11308 | ||
11309 | param_item = devlink_param_find_by_id(&devlink->param_list, param_id); | |
11310 | WARN_ON(!param_item); | |
11311 | ||
c1e5786d | 11312 | devlink_param_notify(devlink, 0, param_item, DEVLINK_CMD_PARAM_NEW); |
ea601e17 MS |
11313 | } |
11314 | EXPORT_SYMBOL_GPL(devlink_param_value_changed); | |
11315 | ||
b16ebe92 | 11316 | /** |
eb0e9fa2 | 11317 | * devl_region_create - create a new address region |
b16ebe92 | 11318 | * |
eb0e9fa2 JP |
11319 | * @devlink: devlink |
11320 | * @ops: region operations and name | |
11321 | * @region_max_snapshots: Maximum supported number of snapshots for region | |
11322 | * @region_size: size of region | |
b16ebe92 | 11323 | */ |
eb0e9fa2 JP |
11324 | struct devlink_region *devl_region_create(struct devlink *devlink, |
11325 | const struct devlink_region_ops *ops, | |
11326 | u32 region_max_snapshots, | |
11327 | u64 region_size) | |
b16ebe92 AV |
11328 | { |
11329 | struct devlink_region *region; | |
eb0e9fa2 JP |
11330 | |
11331 | devl_assert_locked(devlink); | |
b16ebe92 | 11332 | |
a0a09f6b JK |
11333 | if (WARN_ON(!ops) || WARN_ON(!ops->destructor)) |
11334 | return ERR_PTR(-EINVAL); | |
11335 | ||
eb0e9fa2 JP |
11336 | if (devlink_region_get_by_name(devlink, ops->name)) |
11337 | return ERR_PTR(-EEXIST); | |
b16ebe92 AV |
11338 | |
11339 | region = kzalloc(sizeof(*region), GFP_KERNEL); | |
eb0e9fa2 JP |
11340 | if (!region) |
11341 | return ERR_PTR(-ENOMEM); | |
b16ebe92 AV |
11342 | |
11343 | region->devlink = devlink; | |
11344 | region->max_snapshots = region_max_snapshots; | |
e8937681 | 11345 | region->ops = ops; |
b16ebe92 AV |
11346 | region->size = region_size; |
11347 | INIT_LIST_HEAD(®ion->snapshot_list); | |
2dec18ad | 11348 | mutex_init(®ion->snapshot_lock); |
b16ebe92 | 11349 | list_add_tail(®ion->list, &devlink->region_list); |
866319bb | 11350 | devlink_nl_region_notify(region, NULL, DEVLINK_CMD_REGION_NEW); |
b16ebe92 | 11351 | |
b16ebe92 | 11352 | return region; |
eb0e9fa2 JP |
11353 | } |
11354 | EXPORT_SYMBOL_GPL(devl_region_create); | |
b16ebe92 | 11355 | |
eb0e9fa2 JP |
11356 | /** |
11357 | * devlink_region_create - create a new address region | |
11358 | * | |
11359 | * @devlink: devlink | |
11360 | * @ops: region operations and name | |
11361 | * @region_max_snapshots: Maximum supported number of snapshots for region | |
11362 | * @region_size: size of region | |
11363 | * | |
11364 | * Context: Takes and release devlink->lock <mutex>. | |
11365 | */ | |
11366 | struct devlink_region * | |
11367 | devlink_region_create(struct devlink *devlink, | |
11368 | const struct devlink_region_ops *ops, | |
11369 | u32 region_max_snapshots, u64 region_size) | |
11370 | { | |
11371 | struct devlink_region *region; | |
11372 | ||
11373 | devl_lock(devlink); | |
11374 | region = devl_region_create(devlink, ops, region_max_snapshots, | |
11375 | region_size); | |
7715023a | 11376 | devl_unlock(devlink); |
eb0e9fa2 | 11377 | return region; |
b16ebe92 AV |
11378 | } |
11379 | EXPORT_SYMBOL_GPL(devlink_region_create); | |
11380 | ||
544e7c33 AL |
11381 | /** |
11382 | * devlink_port_region_create - create a new address region for a port | |
11383 | * | |
11384 | * @port: devlink port | |
11385 | * @ops: region operations and name | |
11386 | * @region_max_snapshots: Maximum supported number of snapshots for region | |
11387 | * @region_size: size of region | |
eb0e9fa2 JP |
11388 | * |
11389 | * Context: Takes and release devlink->lock <mutex>. | |
544e7c33 AL |
11390 | */ |
11391 | struct devlink_region * | |
11392 | devlink_port_region_create(struct devlink_port *port, | |
11393 | const struct devlink_port_region_ops *ops, | |
11394 | u32 region_max_snapshots, u64 region_size) | |
11395 | { | |
11396 | struct devlink *devlink = port->devlink; | |
11397 | struct devlink_region *region; | |
11398 | int err = 0; | |
11399 | ||
ae3bbc04 JP |
11400 | ASSERT_DEVLINK_PORT_INITIALIZED(port); |
11401 | ||
544e7c33 AL |
11402 | if (WARN_ON(!ops) || WARN_ON(!ops->destructor)) |
11403 | return ERR_PTR(-EINVAL); | |
11404 | ||
7715023a | 11405 | devl_lock(devlink); |
544e7c33 AL |
11406 | |
11407 | if (devlink_port_region_get_by_name(port, ops->name)) { | |
11408 | err = -EEXIST; | |
11409 | goto unlock; | |
11410 | } | |
11411 | ||
11412 | region = kzalloc(sizeof(*region), GFP_KERNEL); | |
11413 | if (!region) { | |
11414 | err = -ENOMEM; | |
11415 | goto unlock; | |
11416 | } | |
11417 | ||
11418 | region->devlink = devlink; | |
11419 | region->port = port; | |
11420 | region->max_snapshots = region_max_snapshots; | |
11421 | region->port_ops = ops; | |
11422 | region->size = region_size; | |
11423 | INIT_LIST_HEAD(®ion->snapshot_list); | |
2dec18ad | 11424 | mutex_init(®ion->snapshot_lock); |
544e7c33 AL |
11425 | list_add_tail(®ion->list, &port->region_list); |
11426 | devlink_nl_region_notify(region, NULL, DEVLINK_CMD_REGION_NEW); | |
11427 | ||
7715023a | 11428 | devl_unlock(devlink); |
544e7c33 AL |
11429 | return region; |
11430 | ||
11431 | unlock: | |
7715023a | 11432 | devl_unlock(devlink); |
544e7c33 AL |
11433 | return ERR_PTR(err); |
11434 | } | |
11435 | EXPORT_SYMBOL_GPL(devlink_port_region_create); | |
11436 | ||
b16ebe92 | 11437 | /** |
eb0e9fa2 | 11438 | * devl_region_destroy - destroy address region |
b16ebe92 | 11439 | * |
eb0e9fa2 | 11440 | * @region: devlink region to destroy |
b16ebe92 | 11441 | */ |
eb0e9fa2 | 11442 | void devl_region_destroy(struct devlink_region *region) |
b16ebe92 AV |
11443 | { |
11444 | struct devlink *devlink = region->devlink; | |
d7e52722 | 11445 | struct devlink_snapshot *snapshot, *ts; |
b16ebe92 | 11446 | |
eb0e9fa2 | 11447 | devl_assert_locked(devlink); |
d7e52722 AV |
11448 | |
11449 | /* Free all snapshots of region */ | |
11450 | list_for_each_entry_safe(snapshot, ts, ®ion->snapshot_list, list) | |
92b49822 | 11451 | devlink_region_snapshot_del(region, snapshot); |
d7e52722 | 11452 | |
b16ebe92 | 11453 | list_del(®ion->list); |
2dec18ad | 11454 | mutex_destroy(®ion->snapshot_lock); |
866319bb AV |
11455 | |
11456 | devlink_nl_region_notify(region, NULL, DEVLINK_CMD_REGION_DEL); | |
b16ebe92 AV |
11457 | kfree(region); |
11458 | } | |
eb0e9fa2 JP |
11459 | EXPORT_SYMBOL_GPL(devl_region_destroy); |
11460 | ||
11461 | /** | |
11462 | * devlink_region_destroy - destroy address region | |
11463 | * | |
11464 | * @region: devlink region to destroy | |
11465 | * | |
11466 | * Context: Takes and release devlink->lock <mutex>. | |
11467 | */ | |
11468 | void devlink_region_destroy(struct devlink_region *region) | |
11469 | { | |
11470 | struct devlink *devlink = region->devlink; | |
11471 | ||
11472 | devl_lock(devlink); | |
11473 | devl_region_destroy(region); | |
11474 | devl_unlock(devlink); | |
11475 | } | |
b16ebe92 AV |
11476 | EXPORT_SYMBOL_GPL(devlink_region_destroy); |
11477 | ||
ccadfa44 | 11478 | /** |
b0efcae5 | 11479 | * devlink_region_snapshot_id_get - get snapshot ID |
ccadfa44 AV |
11480 | * |
11481 | * This callback should be called when adding a new snapshot, | |
11482 | * Driver should use the same id for multiple snapshots taken | |
11483 | * on multiple regions at the same time/by the same trigger. | |
11484 | * | |
12102436 JK |
11485 | * The caller of this function must use devlink_region_snapshot_id_put |
11486 | * when finished creating regions using this id. | |
11487 | * | |
7ef19d3b JK |
11488 | * Returns zero on success, or a negative error code on failure. |
11489 | * | |
ccadfa44 | 11490 | * @devlink: devlink |
7ef19d3b | 11491 | * @id: storage to return id |
ccadfa44 | 11492 | */ |
7ef19d3b | 11493 | int devlink_region_snapshot_id_get(struct devlink *devlink, u32 *id) |
ccadfa44 | 11494 | { |
5502e871 | 11495 | return __devlink_region_snapshot_id_get(devlink, id); |
ccadfa44 | 11496 | } |
b0efcae5 | 11497 | EXPORT_SYMBOL_GPL(devlink_region_snapshot_id_get); |
ccadfa44 | 11498 | |
12102436 JK |
11499 | /** |
11500 | * devlink_region_snapshot_id_put - put snapshot ID reference | |
11501 | * | |
11502 | * This should be called by a driver after finishing creating snapshots | |
11503 | * with an id. Doing so ensures that the ID can later be released in the | |
11504 | * event that all snapshots using it have been destroyed. | |
11505 | * | |
11506 | * @devlink: devlink | |
11507 | * @id: id to release reference on | |
11508 | */ | |
11509 | void devlink_region_snapshot_id_put(struct devlink *devlink, u32 id) | |
11510 | { | |
12102436 | 11511 | __devlink_snapshot_id_decrement(devlink, id); |
12102436 JK |
11512 | } |
11513 | EXPORT_SYMBOL_GPL(devlink_region_snapshot_id_put); | |
11514 | ||
d7e52722 AV |
11515 | /** |
11516 | * devlink_region_snapshot_create - create a new snapshot | |
11517 | * This will add a new snapshot of a region. The snapshot | |
11518 | * will be stored on the region struct and can be accessed | |
6d82f67e | 11519 | * from devlink. This is useful for future analyses of snapshots. |
d7e52722 AV |
11520 | * Multiple snapshots can be created on a region. |
11521 | * The @snapshot_id should be obtained using the getter function. | |
11522 | * | |
eeaadd82 | 11523 | * @region: devlink region of the snapshot |
d7e52722 AV |
11524 | * @data: snapshot data |
11525 | * @snapshot_id: snapshot id to be created | |
d7e52722 | 11526 | */ |
3a5e5234 | 11527 | int devlink_region_snapshot_create(struct devlink_region *region, |
a0a09f6b | 11528 | u8 *data, u32 snapshot_id) |
d7e52722 | 11529 | { |
d7e52722 AV |
11530 | int err; |
11531 | ||
2dec18ad | 11532 | mutex_lock(®ion->snapshot_lock); |
cf80faee | 11533 | err = __devlink_region_snapshot_create(region, data, snapshot_id); |
2dec18ad | 11534 | mutex_unlock(®ion->snapshot_lock); |
d7e52722 AV |
11535 | return err; |
11536 | } | |
11537 | EXPORT_SYMBOL_GPL(devlink_region_snapshot_create); | |
11538 | ||
0f420b6c IS |
11539 | #define DEVLINK_TRAP(_id, _type) \ |
11540 | { \ | |
11541 | .type = DEVLINK_TRAP_TYPE_##_type, \ | |
11542 | .id = DEVLINK_TRAP_GENERIC_ID_##_id, \ | |
11543 | .name = DEVLINK_TRAP_GENERIC_NAME_##_id, \ | |
11544 | } | |
11545 | ||
11546 | static const struct devlink_trap devlink_trap_generic[] = { | |
391203ab IS |
11547 | DEVLINK_TRAP(SMAC_MC, DROP), |
11548 | DEVLINK_TRAP(VLAN_TAG_MISMATCH, DROP), | |
11549 | DEVLINK_TRAP(INGRESS_VLAN_FILTER, DROP), | |
11550 | DEVLINK_TRAP(INGRESS_STP_FILTER, DROP), | |
11551 | DEVLINK_TRAP(EMPTY_TX_LIST, DROP), | |
11552 | DEVLINK_TRAP(PORT_LOOPBACK_FILTER, DROP), | |
11553 | DEVLINK_TRAP(BLACKHOLE_ROUTE, DROP), | |
11554 | DEVLINK_TRAP(TTL_ERROR, EXCEPTION), | |
11555 | DEVLINK_TRAP(TAIL_DROP, DROP), | |
6896cc4d AC |
11556 | DEVLINK_TRAP(NON_IP_PACKET, DROP), |
11557 | DEVLINK_TRAP(UC_DIP_MC_DMAC, DROP), | |
11558 | DEVLINK_TRAP(DIP_LB, DROP), | |
11559 | DEVLINK_TRAP(SIP_MC, DROP), | |
11560 | DEVLINK_TRAP(SIP_LB, DROP), | |
11561 | DEVLINK_TRAP(CORRUPTED_IP_HDR, DROP), | |
11562 | DEVLINK_TRAP(IPV4_SIP_BC, DROP), | |
11563 | DEVLINK_TRAP(IPV6_MC_DIP_RESERVED_SCOPE, DROP), | |
11564 | DEVLINK_TRAP(IPV6_MC_DIP_INTERFACE_LOCAL_SCOPE, DROP), | |
3b063ae5 AC |
11565 | DEVLINK_TRAP(MTU_ERROR, EXCEPTION), |
11566 | DEVLINK_TRAP(UNRESOLVED_NEIGH, EXCEPTION), | |
11567 | DEVLINK_TRAP(RPF, EXCEPTION), | |
11568 | DEVLINK_TRAP(REJECT_ROUTE, EXCEPTION), | |
11569 | DEVLINK_TRAP(IPV4_LPM_UNICAST_MISS, EXCEPTION), | |
11570 | DEVLINK_TRAP(IPV6_LPM_UNICAST_MISS, EXCEPTION), | |
95f0ead8 | 11571 | DEVLINK_TRAP(NON_ROUTABLE, DROP), |
13c056ec | 11572 | DEVLINK_TRAP(DECAP_ERROR, EXCEPTION), |
c3cae491 | 11573 | DEVLINK_TRAP(OVERLAY_SMAC_MC, DROP), |
ecd942a0 JP |
11574 | DEVLINK_TRAP(INGRESS_FLOW_ACTION_DROP, DROP), |
11575 | DEVLINK_TRAP(EGRESS_FLOW_ACTION_DROP, DROP), | |
515eac67 IS |
11576 | DEVLINK_TRAP(STP, CONTROL), |
11577 | DEVLINK_TRAP(LACP, CONTROL), | |
11578 | DEVLINK_TRAP(LLDP, CONTROL), | |
11579 | DEVLINK_TRAP(IGMP_QUERY, CONTROL), | |
11580 | DEVLINK_TRAP(IGMP_V1_REPORT, CONTROL), | |
11581 | DEVLINK_TRAP(IGMP_V2_REPORT, CONTROL), | |
11582 | DEVLINK_TRAP(IGMP_V3_REPORT, CONTROL), | |
11583 | DEVLINK_TRAP(IGMP_V2_LEAVE, CONTROL), | |
11584 | DEVLINK_TRAP(MLD_QUERY, CONTROL), | |
11585 | DEVLINK_TRAP(MLD_V1_REPORT, CONTROL), | |
11586 | DEVLINK_TRAP(MLD_V2_REPORT, CONTROL), | |
11587 | DEVLINK_TRAP(MLD_V1_DONE, CONTROL), | |
d77cfd16 IS |
11588 | DEVLINK_TRAP(IPV4_DHCP, CONTROL), |
11589 | DEVLINK_TRAP(IPV6_DHCP, CONTROL), | |
11590 | DEVLINK_TRAP(ARP_REQUEST, CONTROL), | |
11591 | DEVLINK_TRAP(ARP_RESPONSE, CONTROL), | |
11592 | DEVLINK_TRAP(ARP_OVERLAY, CONTROL), | |
11593 | DEVLINK_TRAP(IPV6_NEIGH_SOLICIT, CONTROL), | |
11594 | DEVLINK_TRAP(IPV6_NEIGH_ADVERT, CONTROL), | |
11595 | DEVLINK_TRAP(IPV4_BFD, CONTROL), | |
11596 | DEVLINK_TRAP(IPV6_BFD, CONTROL), | |
11597 | DEVLINK_TRAP(IPV4_OSPF, CONTROL), | |
11598 | DEVLINK_TRAP(IPV6_OSPF, CONTROL), | |
11599 | DEVLINK_TRAP(IPV4_BGP, CONTROL), | |
11600 | DEVLINK_TRAP(IPV6_BGP, CONTROL), | |
11601 | DEVLINK_TRAP(IPV4_VRRP, CONTROL), | |
11602 | DEVLINK_TRAP(IPV6_VRRP, CONTROL), | |
11603 | DEVLINK_TRAP(IPV4_PIM, CONTROL), | |
11604 | DEVLINK_TRAP(IPV6_PIM, CONTROL), | |
11605 | DEVLINK_TRAP(UC_LB, CONTROL), | |
11606 | DEVLINK_TRAP(LOCAL_ROUTE, CONTROL), | |
11607 | DEVLINK_TRAP(EXTERNAL_ROUTE, CONTROL), | |
11608 | DEVLINK_TRAP(IPV6_UC_DIP_LINK_LOCAL_SCOPE, CONTROL), | |
11609 | DEVLINK_TRAP(IPV6_DIP_ALL_NODES, CONTROL), | |
11610 | DEVLINK_TRAP(IPV6_DIP_ALL_ROUTERS, CONTROL), | |
11611 | DEVLINK_TRAP(IPV6_ROUTER_SOLICIT, CONTROL), | |
11612 | DEVLINK_TRAP(IPV6_ROUTER_ADVERT, CONTROL), | |
11613 | DEVLINK_TRAP(IPV6_REDIRECT, CONTROL), | |
11614 | DEVLINK_TRAP(IPV4_ROUTER_ALERT, CONTROL), | |
11615 | DEVLINK_TRAP(IPV6_ROUTER_ALERT, CONTROL), | |
11616 | DEVLINK_TRAP(PTP_EVENT, CONTROL), | |
11617 | DEVLINK_TRAP(PTP_GENERAL, CONTROL), | |
5eb18a2b IS |
11618 | DEVLINK_TRAP(FLOW_ACTION_SAMPLE, CONTROL), |
11619 | DEVLINK_TRAP(FLOW_ACTION_TRAP, CONTROL), | |
08e335f6 | 11620 | DEVLINK_TRAP(EARLY_DROP, DROP), |
10c24eb2 IC |
11621 | DEVLINK_TRAP(VXLAN_PARSING, DROP), |
11622 | DEVLINK_TRAP(LLC_SNAP_PARSING, DROP), | |
11623 | DEVLINK_TRAP(VLAN_PARSING, DROP), | |
11624 | DEVLINK_TRAP(PPPOE_PPP_PARSING, DROP), | |
11625 | DEVLINK_TRAP(MPLS_PARSING, DROP), | |
11626 | DEVLINK_TRAP(ARP_PARSING, DROP), | |
11627 | DEVLINK_TRAP(IP_1_PARSING, DROP), | |
11628 | DEVLINK_TRAP(IP_N_PARSING, DROP), | |
11629 | DEVLINK_TRAP(GRE_PARSING, DROP), | |
11630 | DEVLINK_TRAP(UDP_PARSING, DROP), | |
11631 | DEVLINK_TRAP(TCP_PARSING, DROP), | |
11632 | DEVLINK_TRAP(IPSEC_PARSING, DROP), | |
11633 | DEVLINK_TRAP(SCTP_PARSING, DROP), | |
11634 | DEVLINK_TRAP(DCCP_PARSING, DROP), | |
11635 | DEVLINK_TRAP(GTP_PARSING, DROP), | |
11636 | DEVLINK_TRAP(ESP_PARSING, DROP), | |
f0a5013e | 11637 | DEVLINK_TRAP(BLACKHOLE_NEXTHOP, DROP), |
e78ab164 | 11638 | DEVLINK_TRAP(DMAC_FILTER, DROP), |
0f420b6c IS |
11639 | }; |
11640 | ||
11641 | #define DEVLINK_TRAP_GROUP(_id) \ | |
11642 | { \ | |
11643 | .id = DEVLINK_TRAP_GROUP_GENERIC_ID_##_id, \ | |
11644 | .name = DEVLINK_TRAP_GROUP_GENERIC_NAME_##_id, \ | |
11645 | } | |
11646 | ||
11647 | static const struct devlink_trap_group devlink_trap_group_generic[] = { | |
391203ab IS |
11648 | DEVLINK_TRAP_GROUP(L2_DROPS), |
11649 | DEVLINK_TRAP_GROUP(L3_DROPS), | |
678eb199 | 11650 | DEVLINK_TRAP_GROUP(L3_EXCEPTIONS), |
391203ab | 11651 | DEVLINK_TRAP_GROUP(BUFFER_DROPS), |
13c056ec | 11652 | DEVLINK_TRAP_GROUP(TUNNEL_DROPS), |
ecd942a0 | 11653 | DEVLINK_TRAP_GROUP(ACL_DROPS), |
515eac67 IS |
11654 | DEVLINK_TRAP_GROUP(STP), |
11655 | DEVLINK_TRAP_GROUP(LACP), | |
11656 | DEVLINK_TRAP_GROUP(LLDP), | |
11657 | DEVLINK_TRAP_GROUP(MC_SNOOPING), | |
d77cfd16 IS |
11658 | DEVLINK_TRAP_GROUP(DHCP), |
11659 | DEVLINK_TRAP_GROUP(NEIGH_DISCOVERY), | |
11660 | DEVLINK_TRAP_GROUP(BFD), | |
11661 | DEVLINK_TRAP_GROUP(OSPF), | |
11662 | DEVLINK_TRAP_GROUP(BGP), | |
11663 | DEVLINK_TRAP_GROUP(VRRP), | |
11664 | DEVLINK_TRAP_GROUP(PIM), | |
11665 | DEVLINK_TRAP_GROUP(UC_LB), | |
11666 | DEVLINK_TRAP_GROUP(LOCAL_DELIVERY), | |
ec4f5b36 | 11667 | DEVLINK_TRAP_GROUP(EXTERNAL_DELIVERY), |
d77cfd16 IS |
11668 | DEVLINK_TRAP_GROUP(IPV6), |
11669 | DEVLINK_TRAP_GROUP(PTP_EVENT), | |
11670 | DEVLINK_TRAP_GROUP(PTP_GENERAL), | |
5eb18a2b IS |
11671 | DEVLINK_TRAP_GROUP(ACL_SAMPLE), |
11672 | DEVLINK_TRAP_GROUP(ACL_TRAP), | |
10c24eb2 | 11673 | DEVLINK_TRAP_GROUP(PARSER_ERROR_DROPS), |
0f420b6c IS |
11674 | }; |
11675 | ||
11676 | static int devlink_trap_generic_verify(const struct devlink_trap *trap) | |
11677 | { | |
11678 | if (trap->id > DEVLINK_TRAP_GENERIC_ID_MAX) | |
11679 | return -EINVAL; | |
11680 | ||
11681 | if (strcmp(trap->name, devlink_trap_generic[trap->id].name)) | |
11682 | return -EINVAL; | |
11683 | ||
11684 | if (trap->type != devlink_trap_generic[trap->id].type) | |
11685 | return -EINVAL; | |
11686 | ||
11687 | return 0; | |
11688 | } | |
11689 | ||
11690 | static int devlink_trap_driver_verify(const struct devlink_trap *trap) | |
11691 | { | |
11692 | int i; | |
11693 | ||
11694 | if (trap->id <= DEVLINK_TRAP_GENERIC_ID_MAX) | |
11695 | return -EINVAL; | |
11696 | ||
11697 | for (i = 0; i < ARRAY_SIZE(devlink_trap_generic); i++) { | |
11698 | if (!strcmp(trap->name, devlink_trap_generic[i].name)) | |
11699 | return -EEXIST; | |
11700 | } | |
11701 | ||
11702 | return 0; | |
11703 | } | |
11704 | ||
11705 | static int devlink_trap_verify(const struct devlink_trap *trap) | |
11706 | { | |
107f1678 | 11707 | if (!trap || !trap->name) |
0f420b6c IS |
11708 | return -EINVAL; |
11709 | ||
11710 | if (trap->generic) | |
11711 | return devlink_trap_generic_verify(trap); | |
11712 | else | |
11713 | return devlink_trap_driver_verify(trap); | |
11714 | } | |
11715 | ||
11716 | static int | |
11717 | devlink_trap_group_generic_verify(const struct devlink_trap_group *group) | |
11718 | { | |
11719 | if (group->id > DEVLINK_TRAP_GROUP_GENERIC_ID_MAX) | |
11720 | return -EINVAL; | |
11721 | ||
11722 | if (strcmp(group->name, devlink_trap_group_generic[group->id].name)) | |
11723 | return -EINVAL; | |
11724 | ||
11725 | return 0; | |
11726 | } | |
11727 | ||
11728 | static int | |
11729 | devlink_trap_group_driver_verify(const struct devlink_trap_group *group) | |
11730 | { | |
11731 | int i; | |
11732 | ||
11733 | if (group->id <= DEVLINK_TRAP_GROUP_GENERIC_ID_MAX) | |
11734 | return -EINVAL; | |
11735 | ||
11736 | for (i = 0; i < ARRAY_SIZE(devlink_trap_group_generic); i++) { | |
11737 | if (!strcmp(group->name, devlink_trap_group_generic[i].name)) | |
11738 | return -EEXIST; | |
11739 | } | |
11740 | ||
11741 | return 0; | |
11742 | } | |
11743 | ||
11744 | static int devlink_trap_group_verify(const struct devlink_trap_group *group) | |
11745 | { | |
11746 | if (group->generic) | |
11747 | return devlink_trap_group_generic_verify(group); | |
11748 | else | |
11749 | return devlink_trap_group_driver_verify(group); | |
11750 | } | |
11751 | ||
11752 | static void | |
11753 | devlink_trap_group_notify(struct devlink *devlink, | |
11754 | const struct devlink_trap_group_item *group_item, | |
11755 | enum devlink_command cmd) | |
11756 | { | |
11757 | struct sk_buff *msg; | |
11758 | int err; | |
11759 | ||
11760 | WARN_ON_ONCE(cmd != DEVLINK_CMD_TRAP_GROUP_NEW && | |
11761 | cmd != DEVLINK_CMD_TRAP_GROUP_DEL); | |
fb9d19c2 LR |
11762 | if (!xa_get_mark(&devlinks, devlink->index, DEVLINK_REGISTERED)) |
11763 | return; | |
0f420b6c IS |
11764 | |
11765 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
11766 | if (!msg) | |
11767 | return; | |
11768 | ||
11769 | err = devlink_nl_trap_group_fill(msg, devlink, group_item, cmd, 0, 0, | |
11770 | 0); | |
11771 | if (err) { | |
11772 | nlmsg_free(msg); | |
11773 | return; | |
11774 | } | |
11775 | ||
11776 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), | |
11777 | msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
11778 | } | |
11779 | ||
0f420b6c IS |
11780 | static int |
11781 | devlink_trap_item_group_link(struct devlink *devlink, | |
11782 | struct devlink_trap_item *trap_item) | |
11783 | { | |
107f1678 | 11784 | u16 group_id = trap_item->trap->init_group_id; |
0f420b6c IS |
11785 | struct devlink_trap_group_item *group_item; |
11786 | ||
107f1678 | 11787 | group_item = devlink_trap_group_item_lookup_by_id(devlink, group_id); |
a09b37fc IS |
11788 | if (WARN_ON_ONCE(!group_item)) |
11789 | return -EINVAL; | |
0f420b6c IS |
11790 | |
11791 | trap_item->group_item = group_item; | |
11792 | ||
11793 | return 0; | |
11794 | } | |
11795 | ||
0f420b6c IS |
11796 | static void devlink_trap_notify(struct devlink *devlink, |
11797 | const struct devlink_trap_item *trap_item, | |
11798 | enum devlink_command cmd) | |
11799 | { | |
11800 | struct sk_buff *msg; | |
11801 | int err; | |
11802 | ||
11803 | WARN_ON_ONCE(cmd != DEVLINK_CMD_TRAP_NEW && | |
11804 | cmd != DEVLINK_CMD_TRAP_DEL); | |
cf530217 LR |
11805 | if (!xa_get_mark(&devlinks, devlink->index, DEVLINK_REGISTERED)) |
11806 | return; | |
0f420b6c IS |
11807 | |
11808 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
11809 | if (!msg) | |
11810 | return; | |
11811 | ||
11812 | err = devlink_nl_trap_fill(msg, devlink, trap_item, cmd, 0, 0, 0); | |
11813 | if (err) { | |
11814 | nlmsg_free(msg); | |
11815 | return; | |
11816 | } | |
11817 | ||
11818 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), | |
11819 | msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
11820 | } | |
11821 | ||
11822 | static int | |
11823 | devlink_trap_register(struct devlink *devlink, | |
11824 | const struct devlink_trap *trap, void *priv) | |
11825 | { | |
11826 | struct devlink_trap_item *trap_item; | |
11827 | int err; | |
11828 | ||
11829 | if (devlink_trap_item_lookup(devlink, trap->name)) | |
11830 | return -EEXIST; | |
11831 | ||
11832 | trap_item = kzalloc(sizeof(*trap_item), GFP_KERNEL); | |
11833 | if (!trap_item) | |
11834 | return -ENOMEM; | |
11835 | ||
11836 | trap_item->stats = netdev_alloc_pcpu_stats(struct devlink_stats); | |
11837 | if (!trap_item->stats) { | |
11838 | err = -ENOMEM; | |
11839 | goto err_stats_alloc; | |
11840 | } | |
11841 | ||
11842 | trap_item->trap = trap; | |
11843 | trap_item->action = trap->init_action; | |
11844 | trap_item->priv = priv; | |
11845 | ||
11846 | err = devlink_trap_item_group_link(devlink, trap_item); | |
11847 | if (err) | |
11848 | goto err_group_link; | |
11849 | ||
11850 | err = devlink->ops->trap_init(devlink, trap, trap_item); | |
11851 | if (err) | |
11852 | goto err_trap_init; | |
11853 | ||
11854 | list_add_tail(&trap_item->list, &devlink->trap_list); | |
11855 | devlink_trap_notify(devlink, trap_item, DEVLINK_CMD_TRAP_NEW); | |
11856 | ||
11857 | return 0; | |
11858 | ||
11859 | err_trap_init: | |
0f420b6c IS |
11860 | err_group_link: |
11861 | free_percpu(trap_item->stats); | |
11862 | err_stats_alloc: | |
11863 | kfree(trap_item); | |
11864 | return err; | |
11865 | } | |
11866 | ||
11867 | static void devlink_trap_unregister(struct devlink *devlink, | |
11868 | const struct devlink_trap *trap) | |
11869 | { | |
11870 | struct devlink_trap_item *trap_item; | |
11871 | ||
11872 | trap_item = devlink_trap_item_lookup(devlink, trap->name); | |
11873 | if (WARN_ON_ONCE(!trap_item)) | |
11874 | return; | |
11875 | ||
11876 | devlink_trap_notify(devlink, trap_item, DEVLINK_CMD_TRAP_DEL); | |
11877 | list_del(&trap_item->list); | |
11878 | if (devlink->ops->trap_fini) | |
11879 | devlink->ops->trap_fini(devlink, trap, trap_item); | |
0f420b6c IS |
11880 | free_percpu(trap_item->stats); |
11881 | kfree(trap_item); | |
11882 | } | |
11883 | ||
11884 | static void devlink_trap_disable(struct devlink *devlink, | |
11885 | const struct devlink_trap *trap) | |
11886 | { | |
11887 | struct devlink_trap_item *trap_item; | |
11888 | ||
11889 | trap_item = devlink_trap_item_lookup(devlink, trap->name); | |
11890 | if (WARN_ON_ONCE(!trap_item)) | |
11891 | return; | |
11892 | ||
c88e11e0 IS |
11893 | devlink->ops->trap_action_set(devlink, trap, DEVLINK_TRAP_ACTION_DROP, |
11894 | NULL); | |
0f420b6c IS |
11895 | trap_item->action = DEVLINK_TRAP_ACTION_DROP; |
11896 | } | |
11897 | ||
11898 | /** | |
852e85a7 | 11899 | * devl_traps_register - Register packet traps with devlink. |
0f420b6c IS |
11900 | * @devlink: devlink. |
11901 | * @traps: Packet traps. | |
11902 | * @traps_count: Count of provided packet traps. | |
11903 | * @priv: Driver private information. | |
11904 | * | |
11905 | * Return: Non-zero value on failure. | |
11906 | */ | |
852e85a7 JP |
11907 | int devl_traps_register(struct devlink *devlink, |
11908 | const struct devlink_trap *traps, | |
11909 | size_t traps_count, void *priv) | |
0f420b6c IS |
11910 | { |
11911 | int i, err; | |
11912 | ||
11913 | if (!devlink->ops->trap_init || !devlink->ops->trap_action_set) | |
11914 | return -EINVAL; | |
11915 | ||
852e85a7 | 11916 | devl_assert_locked(devlink); |
0f420b6c IS |
11917 | for (i = 0; i < traps_count; i++) { |
11918 | const struct devlink_trap *trap = &traps[i]; | |
11919 | ||
11920 | err = devlink_trap_verify(trap); | |
11921 | if (err) | |
11922 | goto err_trap_verify; | |
11923 | ||
11924 | err = devlink_trap_register(devlink, trap, priv); | |
11925 | if (err) | |
11926 | goto err_trap_register; | |
11927 | } | |
0f420b6c IS |
11928 | |
11929 | return 0; | |
11930 | ||
11931 | err_trap_register: | |
11932 | err_trap_verify: | |
11933 | for (i--; i >= 0; i--) | |
11934 | devlink_trap_unregister(devlink, &traps[i]); | |
852e85a7 JP |
11935 | return err; |
11936 | } | |
11937 | EXPORT_SYMBOL_GPL(devl_traps_register); | |
11938 | ||
11939 | /** | |
11940 | * devlink_traps_register - Register packet traps with devlink. | |
11941 | * @devlink: devlink. | |
11942 | * @traps: Packet traps. | |
11943 | * @traps_count: Count of provided packet traps. | |
11944 | * @priv: Driver private information. | |
11945 | * | |
11946 | * Context: Takes and release devlink->lock <mutex>. | |
11947 | * | |
11948 | * Return: Non-zero value on failure. | |
11949 | */ | |
11950 | int devlink_traps_register(struct devlink *devlink, | |
11951 | const struct devlink_trap *traps, | |
11952 | size_t traps_count, void *priv) | |
11953 | { | |
11954 | int err; | |
11955 | ||
11956 | devl_lock(devlink); | |
11957 | err = devl_traps_register(devlink, traps, traps_count, priv); | |
7715023a | 11958 | devl_unlock(devlink); |
0f420b6c IS |
11959 | return err; |
11960 | } | |
11961 | EXPORT_SYMBOL_GPL(devlink_traps_register); | |
11962 | ||
11963 | /** | |
852e85a7 | 11964 | * devl_traps_unregister - Unregister packet traps from devlink. |
0f420b6c IS |
11965 | * @devlink: devlink. |
11966 | * @traps: Packet traps. | |
11967 | * @traps_count: Count of provided packet traps. | |
11968 | */ | |
852e85a7 JP |
11969 | void devl_traps_unregister(struct devlink *devlink, |
11970 | const struct devlink_trap *traps, | |
11971 | size_t traps_count) | |
0f420b6c IS |
11972 | { |
11973 | int i; | |
11974 | ||
852e85a7 | 11975 | devl_assert_locked(devlink); |
0f420b6c IS |
11976 | /* Make sure we do not have any packets in-flight while unregistering |
11977 | * traps by disabling all of them and waiting for a grace period. | |
11978 | */ | |
11979 | for (i = traps_count - 1; i >= 0; i--) | |
11980 | devlink_trap_disable(devlink, &traps[i]); | |
11981 | synchronize_rcu(); | |
11982 | for (i = traps_count - 1; i >= 0; i--) | |
11983 | devlink_trap_unregister(devlink, &traps[i]); | |
852e85a7 JP |
11984 | } |
11985 | EXPORT_SYMBOL_GPL(devl_traps_unregister); | |
11986 | ||
11987 | /** | |
11988 | * devlink_traps_unregister - Unregister packet traps from devlink. | |
11989 | * @devlink: devlink. | |
11990 | * @traps: Packet traps. | |
11991 | * @traps_count: Count of provided packet traps. | |
11992 | * | |
11993 | * Context: Takes and release devlink->lock <mutex>. | |
11994 | */ | |
11995 | void devlink_traps_unregister(struct devlink *devlink, | |
11996 | const struct devlink_trap *traps, | |
11997 | size_t traps_count) | |
11998 | { | |
11999 | devl_lock(devlink); | |
12000 | devl_traps_unregister(devlink, traps, traps_count); | |
7715023a | 12001 | devl_unlock(devlink); |
0f420b6c IS |
12002 | } |
12003 | EXPORT_SYMBOL_GPL(devlink_traps_unregister); | |
12004 | ||
12005 | static void | |
12006 | devlink_trap_stats_update(struct devlink_stats __percpu *trap_stats, | |
12007 | size_t skb_len) | |
12008 | { | |
12009 | struct devlink_stats *stats; | |
12010 | ||
12011 | stats = this_cpu_ptr(trap_stats); | |
12012 | u64_stats_update_begin(&stats->syncp); | |
958751e0 ED |
12013 | u64_stats_add(&stats->rx_bytes, skb_len); |
12014 | u64_stats_inc(&stats->rx_packets); | |
0f420b6c IS |
12015 | u64_stats_update_end(&stats->syncp); |
12016 | } | |
12017 | ||
5b88823b IS |
12018 | static void |
12019 | devlink_trap_report_metadata_set(struct devlink_trap_metadata *metadata, | |
12020 | const struct devlink_trap_item *trap_item, | |
12021 | struct devlink_port *in_devlink_port, | |
12022 | const struct flow_action_cookie *fa_cookie) | |
12023 | { | |
12024 | metadata->trap_name = trap_item->trap->name; | |
12025 | metadata->trap_group_name = trap_item->group_item->group->name; | |
12026 | metadata->fa_cookie = fa_cookie; | |
93e15596 | 12027 | metadata->trap_type = trap_item->trap->type; |
5b88823b IS |
12028 | |
12029 | spin_lock(&in_devlink_port->type_lock); | |
12030 | if (in_devlink_port->type == DEVLINK_PORT_TYPE_ETH) | |
3830c571 | 12031 | metadata->input_dev = in_devlink_port->type_eth.netdev; |
5b88823b IS |
12032 | spin_unlock(&in_devlink_port->type_lock); |
12033 | } | |
12034 | ||
0f420b6c IS |
12035 | /** |
12036 | * devlink_trap_report - Report trapped packet to drop monitor. | |
12037 | * @devlink: devlink. | |
12038 | * @skb: Trapped packet. | |
12039 | * @trap_ctx: Trap context. | |
12040 | * @in_devlink_port: Input devlink port. | |
5a2e106c | 12041 | * @fa_cookie: Flow action cookie. Could be NULL. |
0f420b6c IS |
12042 | */ |
12043 | void devlink_trap_report(struct devlink *devlink, struct sk_buff *skb, | |
5a2e106c JP |
12044 | void *trap_ctx, struct devlink_port *in_devlink_port, |
12045 | const struct flow_action_cookie *fa_cookie) | |
12046 | ||
0f420b6c IS |
12047 | { |
12048 | struct devlink_trap_item *trap_item = trap_ctx; | |
0f420b6c IS |
12049 | |
12050 | devlink_trap_stats_update(trap_item->stats, skb->len); | |
12051 | devlink_trap_stats_update(trap_item->group_item->stats, skb->len); | |
12052 | ||
5b88823b IS |
12053 | if (trace_devlink_trap_report_enabled()) { |
12054 | struct devlink_trap_metadata metadata = {}; | |
12055 | ||
12056 | devlink_trap_report_metadata_set(&metadata, trap_item, | |
12057 | in_devlink_port, fa_cookie); | |
12058 | trace_devlink_trap_report(devlink, skb, &metadata); | |
12059 | } | |
0f420b6c IS |
12060 | } |
12061 | EXPORT_SYMBOL_GPL(devlink_trap_report); | |
12062 | ||
12063 | /** | |
12064 | * devlink_trap_ctx_priv - Trap context to driver private information. | |
12065 | * @trap_ctx: Trap context. | |
12066 | * | |
12067 | * Return: Driver private information passed during registration. | |
12068 | */ | |
12069 | void *devlink_trap_ctx_priv(void *trap_ctx) | |
12070 | { | |
12071 | struct devlink_trap_item *trap_item = trap_ctx; | |
12072 | ||
12073 | return trap_item->priv; | |
12074 | } | |
12075 | EXPORT_SYMBOL_GPL(devlink_trap_ctx_priv); | |
12076 | ||
f9f54392 IS |
12077 | static int |
12078 | devlink_trap_group_item_policer_link(struct devlink *devlink, | |
12079 | struct devlink_trap_group_item *group_item) | |
12080 | { | |
12081 | u32 policer_id = group_item->group->init_policer_id; | |
12082 | struct devlink_trap_policer_item *policer_item; | |
12083 | ||
12084 | if (policer_id == 0) | |
12085 | return 0; | |
12086 | ||
12087 | policer_item = devlink_trap_policer_item_lookup(devlink, policer_id); | |
12088 | if (WARN_ON_ONCE(!policer_item)) | |
12089 | return -EINVAL; | |
12090 | ||
12091 | group_item->policer_item = policer_item; | |
12092 | ||
12093 | return 0; | |
12094 | } | |
12095 | ||
95ad9555 IS |
12096 | static int |
12097 | devlink_trap_group_register(struct devlink *devlink, | |
12098 | const struct devlink_trap_group *group) | |
12099 | { | |
12100 | struct devlink_trap_group_item *group_item; | |
12101 | int err; | |
12102 | ||
12103 | if (devlink_trap_group_item_lookup(devlink, group->name)) | |
12104 | return -EEXIST; | |
12105 | ||
12106 | group_item = kzalloc(sizeof(*group_item), GFP_KERNEL); | |
12107 | if (!group_item) | |
12108 | return -ENOMEM; | |
12109 | ||
12110 | group_item->stats = netdev_alloc_pcpu_stats(struct devlink_stats); | |
12111 | if (!group_item->stats) { | |
12112 | err = -ENOMEM; | |
12113 | goto err_stats_alloc; | |
12114 | } | |
12115 | ||
12116 | group_item->group = group; | |
95ad9555 | 12117 | |
f9f54392 IS |
12118 | err = devlink_trap_group_item_policer_link(devlink, group_item); |
12119 | if (err) | |
12120 | goto err_policer_link; | |
12121 | ||
95ad9555 IS |
12122 | if (devlink->ops->trap_group_init) { |
12123 | err = devlink->ops->trap_group_init(devlink, group); | |
12124 | if (err) | |
12125 | goto err_group_init; | |
12126 | } | |
12127 | ||
12128 | list_add_tail(&group_item->list, &devlink->trap_group_list); | |
fb9d19c2 LR |
12129 | devlink_trap_group_notify(devlink, group_item, |
12130 | DEVLINK_CMD_TRAP_GROUP_NEW); | |
12131 | ||
95ad9555 IS |
12132 | return 0; |
12133 | ||
12134 | err_group_init: | |
f9f54392 | 12135 | err_policer_link: |
95ad9555 IS |
12136 | free_percpu(group_item->stats); |
12137 | err_stats_alloc: | |
12138 | kfree(group_item); | |
12139 | return err; | |
12140 | } | |
12141 | ||
12142 | static void | |
12143 | devlink_trap_group_unregister(struct devlink *devlink, | |
12144 | const struct devlink_trap_group *group) | |
12145 | { | |
12146 | struct devlink_trap_group_item *group_item; | |
12147 | ||
12148 | group_item = devlink_trap_group_item_lookup(devlink, group->name); | |
12149 | if (WARN_ON_ONCE(!group_item)) | |
12150 | return; | |
12151 | ||
fb9d19c2 LR |
12152 | devlink_trap_group_notify(devlink, group_item, |
12153 | DEVLINK_CMD_TRAP_GROUP_DEL); | |
95ad9555 IS |
12154 | list_del(&group_item->list); |
12155 | free_percpu(group_item->stats); | |
12156 | kfree(group_item); | |
12157 | } | |
12158 | ||
12159 | /** | |
852e85a7 | 12160 | * devl_trap_groups_register - Register packet trap groups with devlink. |
95ad9555 IS |
12161 | * @devlink: devlink. |
12162 | * @groups: Packet trap groups. | |
12163 | * @groups_count: Count of provided packet trap groups. | |
12164 | * | |
12165 | * Return: Non-zero value on failure. | |
12166 | */ | |
852e85a7 JP |
12167 | int devl_trap_groups_register(struct devlink *devlink, |
12168 | const struct devlink_trap_group *groups, | |
12169 | size_t groups_count) | |
95ad9555 IS |
12170 | { |
12171 | int i, err; | |
12172 | ||
852e85a7 | 12173 | devl_assert_locked(devlink); |
95ad9555 IS |
12174 | for (i = 0; i < groups_count; i++) { |
12175 | const struct devlink_trap_group *group = &groups[i]; | |
12176 | ||
12177 | err = devlink_trap_group_verify(group); | |
12178 | if (err) | |
12179 | goto err_trap_group_verify; | |
12180 | ||
12181 | err = devlink_trap_group_register(devlink, group); | |
12182 | if (err) | |
12183 | goto err_trap_group_register; | |
12184 | } | |
95ad9555 IS |
12185 | |
12186 | return 0; | |
12187 | ||
12188 | err_trap_group_register: | |
12189 | err_trap_group_verify: | |
12190 | for (i--; i >= 0; i--) | |
12191 | devlink_trap_group_unregister(devlink, &groups[i]); | |
852e85a7 JP |
12192 | return err; |
12193 | } | |
12194 | EXPORT_SYMBOL_GPL(devl_trap_groups_register); | |
12195 | ||
12196 | /** | |
12197 | * devlink_trap_groups_register - Register packet trap groups with devlink. | |
12198 | * @devlink: devlink. | |
12199 | * @groups: Packet trap groups. | |
12200 | * @groups_count: Count of provided packet trap groups. | |
12201 | * | |
12202 | * Context: Takes and release devlink->lock <mutex>. | |
12203 | * | |
12204 | * Return: Non-zero value on failure. | |
12205 | */ | |
12206 | int devlink_trap_groups_register(struct devlink *devlink, | |
12207 | const struct devlink_trap_group *groups, | |
12208 | size_t groups_count) | |
12209 | { | |
12210 | int err; | |
12211 | ||
12212 | devl_lock(devlink); | |
12213 | err = devl_trap_groups_register(devlink, groups, groups_count); | |
7715023a | 12214 | devl_unlock(devlink); |
95ad9555 IS |
12215 | return err; |
12216 | } | |
12217 | EXPORT_SYMBOL_GPL(devlink_trap_groups_register); | |
12218 | ||
852e85a7 JP |
12219 | /** |
12220 | * devl_trap_groups_unregister - Unregister packet trap groups from devlink. | |
12221 | * @devlink: devlink. | |
12222 | * @groups: Packet trap groups. | |
12223 | * @groups_count: Count of provided packet trap groups. | |
12224 | */ | |
12225 | void devl_trap_groups_unregister(struct devlink *devlink, | |
12226 | const struct devlink_trap_group *groups, | |
12227 | size_t groups_count) | |
12228 | { | |
12229 | int i; | |
12230 | ||
12231 | devl_assert_locked(devlink); | |
12232 | for (i = groups_count - 1; i >= 0; i--) | |
12233 | devlink_trap_group_unregister(devlink, &groups[i]); | |
12234 | } | |
12235 | EXPORT_SYMBOL_GPL(devl_trap_groups_unregister); | |
12236 | ||
95ad9555 IS |
12237 | /** |
12238 | * devlink_trap_groups_unregister - Unregister packet trap groups from devlink. | |
12239 | * @devlink: devlink. | |
12240 | * @groups: Packet trap groups. | |
12241 | * @groups_count: Count of provided packet trap groups. | |
852e85a7 JP |
12242 | * |
12243 | * Context: Takes and release devlink->lock <mutex>. | |
95ad9555 IS |
12244 | */ |
12245 | void devlink_trap_groups_unregister(struct devlink *devlink, | |
12246 | const struct devlink_trap_group *groups, | |
12247 | size_t groups_count) | |
12248 | { | |
7715023a | 12249 | devl_lock(devlink); |
852e85a7 | 12250 | devl_trap_groups_unregister(devlink, groups, groups_count); |
7715023a | 12251 | devl_unlock(devlink); |
95ad9555 IS |
12252 | } |
12253 | EXPORT_SYMBOL_GPL(devlink_trap_groups_unregister); | |
12254 | ||
1e8c6619 IS |
12255 | static void |
12256 | devlink_trap_policer_notify(struct devlink *devlink, | |
12257 | const struct devlink_trap_policer_item *policer_item, | |
12258 | enum devlink_command cmd) | |
12259 | { | |
12260 | struct sk_buff *msg; | |
12261 | int err; | |
12262 | ||
12263 | WARN_ON_ONCE(cmd != DEVLINK_CMD_TRAP_POLICER_NEW && | |
12264 | cmd != DEVLINK_CMD_TRAP_POLICER_DEL); | |
c5e0321e LR |
12265 | if (!xa_get_mark(&devlinks, devlink->index, DEVLINK_REGISTERED)) |
12266 | return; | |
1e8c6619 IS |
12267 | |
12268 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
12269 | if (!msg) | |
12270 | return; | |
12271 | ||
12272 | err = devlink_nl_trap_policer_fill(msg, devlink, policer_item, cmd, 0, | |
12273 | 0, 0); | |
12274 | if (err) { | |
12275 | nlmsg_free(msg); | |
12276 | return; | |
12277 | } | |
12278 | ||
12279 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), | |
12280 | msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
12281 | } | |
12282 | ||
12283 | static int | |
12284 | devlink_trap_policer_register(struct devlink *devlink, | |
12285 | const struct devlink_trap_policer *policer) | |
12286 | { | |
12287 | struct devlink_trap_policer_item *policer_item; | |
12288 | int err; | |
12289 | ||
12290 | if (devlink_trap_policer_item_lookup(devlink, policer->id)) | |
12291 | return -EEXIST; | |
12292 | ||
12293 | policer_item = kzalloc(sizeof(*policer_item), GFP_KERNEL); | |
12294 | if (!policer_item) | |
12295 | return -ENOMEM; | |
12296 | ||
12297 | policer_item->policer = policer; | |
12298 | policer_item->rate = policer->init_rate; | |
12299 | policer_item->burst = policer->init_burst; | |
12300 | ||
12301 | if (devlink->ops->trap_policer_init) { | |
12302 | err = devlink->ops->trap_policer_init(devlink, policer); | |
12303 | if (err) | |
12304 | goto err_policer_init; | |
12305 | } | |
12306 | ||
12307 | list_add_tail(&policer_item->list, &devlink->trap_policer_list); | |
c5e0321e LR |
12308 | devlink_trap_policer_notify(devlink, policer_item, |
12309 | DEVLINK_CMD_TRAP_POLICER_NEW); | |
12310 | ||
1e8c6619 IS |
12311 | return 0; |
12312 | ||
12313 | err_policer_init: | |
12314 | kfree(policer_item); | |
12315 | return err; | |
12316 | } | |
12317 | ||
12318 | static void | |
12319 | devlink_trap_policer_unregister(struct devlink *devlink, | |
12320 | const struct devlink_trap_policer *policer) | |
12321 | { | |
12322 | struct devlink_trap_policer_item *policer_item; | |
12323 | ||
12324 | policer_item = devlink_trap_policer_item_lookup(devlink, policer->id); | |
12325 | if (WARN_ON_ONCE(!policer_item)) | |
12326 | return; | |
12327 | ||
c5e0321e LR |
12328 | devlink_trap_policer_notify(devlink, policer_item, |
12329 | DEVLINK_CMD_TRAP_POLICER_DEL); | |
1e8c6619 IS |
12330 | list_del(&policer_item->list); |
12331 | if (devlink->ops->trap_policer_fini) | |
12332 | devlink->ops->trap_policer_fini(devlink, policer); | |
12333 | kfree(policer_item); | |
12334 | } | |
12335 | ||
12336 | /** | |
852e85a7 | 12337 | * devl_trap_policers_register - Register packet trap policers with devlink. |
1e8c6619 IS |
12338 | * @devlink: devlink. |
12339 | * @policers: Packet trap policers. | |
12340 | * @policers_count: Count of provided packet trap policers. | |
12341 | * | |
12342 | * Return: Non-zero value on failure. | |
12343 | */ | |
12344 | int | |
852e85a7 JP |
12345 | devl_trap_policers_register(struct devlink *devlink, |
12346 | const struct devlink_trap_policer *policers, | |
12347 | size_t policers_count) | |
1e8c6619 IS |
12348 | { |
12349 | int i, err; | |
12350 | ||
852e85a7 | 12351 | devl_assert_locked(devlink); |
1e8c6619 IS |
12352 | for (i = 0; i < policers_count; i++) { |
12353 | const struct devlink_trap_policer *policer = &policers[i]; | |
12354 | ||
12355 | if (WARN_ON(policer->id == 0 || | |
12356 | policer->max_rate < policer->min_rate || | |
12357 | policer->max_burst < policer->min_burst)) { | |
12358 | err = -EINVAL; | |
12359 | goto err_trap_policer_verify; | |
12360 | } | |
12361 | ||
12362 | err = devlink_trap_policer_register(devlink, policer); | |
12363 | if (err) | |
12364 | goto err_trap_policer_register; | |
12365 | } | |
1e8c6619 IS |
12366 | return 0; |
12367 | ||
12368 | err_trap_policer_register: | |
12369 | err_trap_policer_verify: | |
12370 | for (i--; i >= 0; i--) | |
12371 | devlink_trap_policer_unregister(devlink, &policers[i]); | |
852e85a7 JP |
12372 | return err; |
12373 | } | |
12374 | EXPORT_SYMBOL_GPL(devl_trap_policers_register); | |
12375 | ||
852e85a7 JP |
12376 | /** |
12377 | * devl_trap_policers_unregister - Unregister packet trap policers from devlink. | |
12378 | * @devlink: devlink. | |
12379 | * @policers: Packet trap policers. | |
12380 | * @policers_count: Count of provided packet trap policers. | |
12381 | */ | |
12382 | void | |
12383 | devl_trap_policers_unregister(struct devlink *devlink, | |
12384 | const struct devlink_trap_policer *policers, | |
12385 | size_t policers_count) | |
12386 | { | |
12387 | int i; | |
12388 | ||
12389 | devl_assert_locked(devlink); | |
12390 | for (i = policers_count - 1; i >= 0; i--) | |
12391 | devlink_trap_policer_unregister(devlink, &policers[i]); | |
12392 | } | |
12393 | EXPORT_SYMBOL_GPL(devl_trap_policers_unregister); | |
12394 | ||
ddb6e99e JK |
12395 | static void __devlink_compat_running_version(struct devlink *devlink, |
12396 | char *buf, size_t len) | |
12397 | { | |
f94b6063 | 12398 | struct devlink_info_req req = {}; |
ddb6e99e | 12399 | const struct nlattr *nlattr; |
ddb6e99e JK |
12400 | struct sk_buff *msg; |
12401 | int rem, err; | |
12402 | ||
ddb6e99e JK |
12403 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
12404 | if (!msg) | |
12405 | return; | |
12406 | ||
12407 | req.msg = msg; | |
12408 | err = devlink->ops->info_get(devlink, &req, NULL); | |
12409 | if (err) | |
12410 | goto free_msg; | |
12411 | ||
12412 | nla_for_each_attr(nlattr, (void *)msg->data, msg->len, rem) { | |
12413 | const struct nlattr *kv; | |
12414 | int rem_kv; | |
12415 | ||
12416 | if (nla_type(nlattr) != DEVLINK_ATTR_INFO_VERSION_RUNNING) | |
12417 | continue; | |
12418 | ||
12419 | nla_for_each_nested(kv, nlattr, rem_kv) { | |
12420 | if (nla_type(kv) != DEVLINK_ATTR_INFO_VERSION_VALUE) | |
12421 | continue; | |
12422 | ||
12423 | strlcat(buf, nla_data(kv), len); | |
12424 | strlcat(buf, " ", len); | |
12425 | } | |
12426 | } | |
12427 | free_msg: | |
12428 | nlmsg_free(msg); | |
12429 | } | |
12430 | ||
2bc50987 LR |
12431 | static struct devlink_port *netdev_to_devlink_port(struct net_device *dev) |
12432 | { | |
12433 | if (!dev->netdev_ops->ndo_get_devlink_port) | |
12434 | return NULL; | |
12435 | ||
12436 | return dev->netdev_ops->ndo_get_devlink_port(dev); | |
12437 | } | |
12438 | ||
1af0a094 | 12439 | void devlink_compat_running_version(struct devlink *devlink, |
ddb6e99e JK |
12440 | char *buf, size_t len) |
12441 | { | |
1af0a094 JK |
12442 | if (!devlink->ops->info_get) |
12443 | return; | |
b473b0d2 | 12444 | |
7715023a | 12445 | devl_lock(devlink); |
b473b0d2 | 12446 | __devlink_compat_running_version(devlink, buf, len); |
7715023a | 12447 | devl_unlock(devlink); |
ddb6e99e JK |
12448 | } |
12449 | ||
1af0a094 | 12450 | int devlink_compat_flash_update(struct devlink *devlink, const char *file_name) |
4eceba17 | 12451 | { |
bc75c054 | 12452 | struct devlink_flash_update_params params = {}; |
e0dcd386 | 12453 | int ret; |
4eceba17 | 12454 | |
1af0a094 JK |
12455 | if (!devlink->ops->flash_update) |
12456 | return -EOPNOTSUPP; | |
4eceba17 | 12457 | |
b44cfd4f JK |
12458 | ret = request_firmware(¶ms.fw, file_name, devlink->dev); |
12459 | if (ret) | |
1af0a094 | 12460 | return ret; |
bc75c054 | 12461 | |
7715023a | 12462 | devl_lock(devlink); |
52cc5f3a | 12463 | devlink_flash_update_begin_notify(devlink); |
bc75c054 | 12464 | ret = devlink->ops->flash_update(devlink, ¶ms, NULL); |
52cc5f3a | 12465 | devlink_flash_update_end_notify(devlink); |
7715023a | 12466 | devl_unlock(devlink); |
1b45ff6c | 12467 | |
b44cfd4f JK |
12468 | release_firmware(params.fw); |
12469 | ||
b473b0d2 | 12470 | return ret; |
4eceba17 JK |
12471 | } |
12472 | ||
af3836df JP |
12473 | int devlink_compat_phys_port_name_get(struct net_device *dev, |
12474 | char *name, size_t len) | |
12475 | { | |
12476 | struct devlink_port *devlink_port; | |
12477 | ||
12478 | /* RTNL mutex is held here which ensures that devlink_port | |
12479 | * instance cannot disappear in the middle. No need to take | |
12480 | * any devlink lock as only permanent values are accessed. | |
12481 | */ | |
12482 | ASSERT_RTNL(); | |
12483 | ||
12484 | devlink_port = netdev_to_devlink_port(dev); | |
12485 | if (!devlink_port) | |
12486 | return -EOPNOTSUPP; | |
12487 | ||
12488 | return __devlink_port_phys_port_name_get(devlink_port, name, len); | |
12489 | } | |
12490 | ||
7e1146e8 JP |
12491 | int devlink_compat_switch_id_get(struct net_device *dev, |
12492 | struct netdev_phys_item_id *ppid) | |
12493 | { | |
12494 | struct devlink_port *devlink_port; | |
12495 | ||
043b8413 VB |
12496 | /* Caller must hold RTNL mutex or reference to dev, which ensures that |
12497 | * devlink_port instance cannot disappear in the middle. No need to take | |
7e1146e8 JP |
12498 | * any devlink lock as only permanent values are accessed. |
12499 | */ | |
7e1146e8 | 12500 | devlink_port = netdev_to_devlink_port(dev); |
46737a19 | 12501 | if (!devlink_port || !devlink_port->switch_port) |
7e1146e8 JP |
12502 | return -EOPNOTSUPP; |
12503 | ||
12504 | memcpy(ppid, &devlink_port->attrs.switch_id, sizeof(*ppid)); | |
12505 | ||
12506 | return 0; | |
12507 | } | |
12508 | ||
070c63f2 JP |
12509 | static void __net_exit devlink_pernet_pre_exit(struct net *net) |
12510 | { | |
12511 | struct devlink *devlink; | |
ccdf0721 | 12512 | u32 actions_performed; |
11a861d7 | 12513 | unsigned long index; |
070c63f2 JP |
12514 | int err; |
12515 | ||
12516 | /* In case network namespace is getting destroyed, reload | |
12517 | * all devlink instances from this namespace into init_net. | |
12518 | */ | |
294c4f57 | 12519 | devlinks_xa_for_each_registered_get(net, index, devlink) { |
82465bec | 12520 | WARN_ON(!(devlink->features & DEVLINK_F_RELOAD)); |
644a66c6 | 12521 | mutex_lock(&devlink->lock); |
cbf6ab67 LR |
12522 | err = devlink_reload(devlink, &init_net, |
12523 | DEVLINK_RELOAD_ACTION_DRIVER_REINIT, | |
12524 | DEVLINK_RELOAD_LIMIT_UNSPEC, | |
12525 | &actions_performed, NULL); | |
644a66c6 | 12526 | mutex_unlock(&devlink->lock); |
cbf6ab67 LR |
12527 | if (err && err != -EOPNOTSUPP) |
12528 | pr_warn("Failed to reload devlink instance into init_net\n"); | |
437ebfd9 | 12529 | devlink_put(devlink); |
070c63f2 | 12530 | } |
070c63f2 JP |
12531 | } |
12532 | ||
12533 | static struct pernet_operations devlink_pernet_ops __net_initdata = { | |
12534 | .pre_exit = devlink_pernet_pre_exit, | |
12535 | }; | |
12536 | ||
f4b6bcc7 | 12537 | static int __init devlink_init(void) |
bfcd3a46 | 12538 | { |
070c63f2 JP |
12539 | int err; |
12540 | ||
12541 | err = genl_register_family(&devlink_nl_family); | |
12542 | if (err) | |
12543 | goto out; | |
12544 | err = register_pernet_subsys(&devlink_pernet_ops); | |
12545 | ||
12546 | out: | |
12547 | WARN_ON(err); | |
12548 | return err; | |
bfcd3a46 JP |
12549 | } |
12550 | ||
f4b6bcc7 | 12551 | subsys_initcall(devlink_init); |