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; |
02a68a47 | 74 | struct notifier_block netdevice_nb; |
96d0c9be | 75 | char priv[] __aligned(NETDEV_ALIGN); |
21314638 LR |
76 | }; |
77 | ||
fcdc8ce2 JP |
78 | struct devlink_linecard_ops; |
79 | struct devlink_linecard_type; | |
80 | ||
c246f9b5 JP |
81 | struct devlink_linecard { |
82 | struct list_head list; | |
83 | struct devlink *devlink; | |
84 | unsigned int index; | |
85 | refcount_t refcount; | |
fcdc8ce2 JP |
86 | const struct devlink_linecard_ops *ops; |
87 | void *priv; | |
88 | enum devlink_linecard_state state; | |
c4a67a21 | 89 | struct mutex state_lock; /* Protects state */ |
fcdc8ce2 JP |
90 | const char *type; |
91 | struct devlink_linecard_type *types; | |
92 | unsigned int types_count; | |
7b2d9a1a | 93 | struct devlink *nested_devlink; |
c246f9b5 JP |
94 | }; |
95 | ||
4c897cfc LR |
96 | /** |
97 | * struct devlink_resource - devlink resource | |
98 | * @name: name of the resource | |
99 | * @id: id, per devlink instance | |
100 | * @size: size of the resource | |
101 | * @size_new: updated size of the resource, reload is needed | |
102 | * @size_valid: valid in case the total size of the resource is valid | |
103 | * including its children | |
104 | * @parent: parent resource | |
105 | * @size_params: size parameters | |
106 | * @list: parent list | |
107 | * @resource_list: list of child resources | |
108 | * @occ_get: occupancy getter callback | |
109 | * @occ_get_priv: occupancy getter callback priv | |
110 | */ | |
111 | struct devlink_resource { | |
112 | const char *name; | |
113 | u64 id; | |
114 | u64 size; | |
115 | u64 size_new; | |
116 | bool size_valid; | |
117 | struct devlink_resource *parent; | |
118 | struct devlink_resource_size_params size_params; | |
119 | struct list_head list; | |
120 | struct list_head resource_list; | |
121 | devlink_resource_occ_get_t *occ_get; | |
122 | void *occ_get_priv; | |
123 | }; | |
124 | ||
21314638 LR |
125 | void *devlink_priv(struct devlink *devlink) |
126 | { | |
127 | return &devlink->priv; | |
128 | } | |
129 | EXPORT_SYMBOL_GPL(devlink_priv); | |
130 | ||
131 | struct devlink *priv_to_devlink(void *priv) | |
132 | { | |
133 | return container_of(priv, struct devlink, priv); | |
134 | } | |
135 | EXPORT_SYMBOL_GPL(priv_to_devlink); | |
136 | ||
137 | struct device *devlink_to_dev(const struct devlink *devlink) | |
138 | { | |
139 | return devlink->dev; | |
140 | } | |
141 | EXPORT_SYMBOL_GPL(devlink_to_dev); | |
142 | ||
11770091 AS |
143 | static struct devlink_dpipe_field devlink_dpipe_fields_ethernet[] = { |
144 | { | |
12bdc5e1 | 145 | .name = "destination mac", |
11770091 AS |
146 | .id = DEVLINK_DPIPE_FIELD_ETHERNET_DST_MAC, |
147 | .bitwidth = 48, | |
148 | }, | |
149 | }; | |
150 | ||
151 | struct devlink_dpipe_header devlink_dpipe_header_ethernet = { | |
152 | .name = "ethernet", | |
153 | .id = DEVLINK_DPIPE_HEADER_ETHERNET, | |
154 | .fields = devlink_dpipe_fields_ethernet, | |
155 | .fields_count = ARRAY_SIZE(devlink_dpipe_fields_ethernet), | |
156 | .global = true, | |
157 | }; | |
c52ef04d | 158 | EXPORT_SYMBOL_GPL(devlink_dpipe_header_ethernet); |
11770091 | 159 | |
3fb886ec AS |
160 | static struct devlink_dpipe_field devlink_dpipe_fields_ipv4[] = { |
161 | { | |
162 | .name = "destination ip", | |
163 | .id = DEVLINK_DPIPE_FIELD_IPV4_DST_IP, | |
164 | .bitwidth = 32, | |
165 | }, | |
166 | }; | |
167 | ||
168 | struct devlink_dpipe_header devlink_dpipe_header_ipv4 = { | |
169 | .name = "ipv4", | |
170 | .id = DEVLINK_DPIPE_HEADER_IPV4, | |
171 | .fields = devlink_dpipe_fields_ipv4, | |
172 | .fields_count = ARRAY_SIZE(devlink_dpipe_fields_ipv4), | |
173 | .global = true, | |
174 | }; | |
c52ef04d | 175 | EXPORT_SYMBOL_GPL(devlink_dpipe_header_ipv4); |
3fb886ec | 176 | |
1797f5b3 AS |
177 | static struct devlink_dpipe_field devlink_dpipe_fields_ipv6[] = { |
178 | { | |
179 | .name = "destination ip", | |
180 | .id = DEVLINK_DPIPE_FIELD_IPV6_DST_IP, | |
181 | .bitwidth = 128, | |
182 | }, | |
183 | }; | |
184 | ||
185 | struct devlink_dpipe_header devlink_dpipe_header_ipv6 = { | |
186 | .name = "ipv6", | |
187 | .id = DEVLINK_DPIPE_HEADER_IPV6, | |
188 | .fields = devlink_dpipe_fields_ipv6, | |
189 | .fields_count = ARRAY_SIZE(devlink_dpipe_fields_ipv6), | |
190 | .global = true, | |
191 | }; | |
c52ef04d | 192 | EXPORT_SYMBOL_GPL(devlink_dpipe_header_ipv6); |
1797f5b3 | 193 | |
e5224f0f | 194 | EXPORT_TRACEPOINT_SYMBOL_GPL(devlink_hwmsg); |
57186a5f | 195 | EXPORT_TRACEPOINT_SYMBOL_GPL(devlink_hwerr); |
5b88823b | 196 | EXPORT_TRACEPOINT_SYMBOL_GPL(devlink_trap_report); |
bfcd3a46 | 197 | |
a1e8ae90 PP |
198 | static const struct nla_policy devlink_function_nl_policy[DEVLINK_PORT_FUNCTION_ATTR_MAX + 1] = { |
199 | [DEVLINK_PORT_FUNCTION_ATTR_HW_ADDR] = { .type = NLA_BINARY }, | |
a556dded PP |
200 | [DEVLINK_PORT_FN_ATTR_STATE] = |
201 | NLA_POLICY_RANGE(NLA_U8, DEVLINK_PORT_FN_STATE_INACTIVE, | |
202 | DEVLINK_PORT_FN_STATE_ACTIVE), | |
a1e8ae90 PP |
203 | }; |
204 | ||
08f588fa VG |
205 | static const struct nla_policy devlink_selftest_nl_policy[DEVLINK_ATTR_SELFTEST_ID_MAX + 1] = { |
206 | [DEVLINK_ATTR_SELFTEST_ID_FLASH] = { .type = NLA_FLAG }, | |
207 | }; | |
208 | ||
11a861d7 LR |
209 | static DEFINE_XARRAY_FLAGS(devlinks, XA_FLAGS_ALLOC); |
210 | #define DEVLINK_REGISTERED XA_MARK_1 | |
c2368b19 | 211 | #define DEVLINK_UNREGISTERING XA_MARK_2 |
bfcd3a46 | 212 | |
b88f7b12 LR |
213 | /* devlink instances are open to the access from the user space after |
214 | * devlink_register() call. Such logical barrier allows us to have certain | |
215 | * expectations related to locking. | |
216 | * | |
217 | * Before *_register() - we are in initialization stage and no parallel | |
218 | * access possible to the devlink instance. All drivers perform that phase | |
219 | * by implicitly holding device_lock. | |
220 | * | |
221 | * After *_register() - users and driver can access devlink instance at | |
222 | * the same time. | |
223 | */ | |
224 | #define ASSERT_DEVLINK_REGISTERED(d) \ | |
225 | WARN_ON_ONCE(!xa_get_mark(&devlinks, (d)->index, DEVLINK_REGISTERED)) | |
226 | #define ASSERT_DEVLINK_NOT_REGISTERED(d) \ | |
227 | WARN_ON_ONCE(xa_get_mark(&devlinks, (d)->index, DEVLINK_REGISTERED)) | |
228 | ||
471f894f | 229 | struct net *devlink_net(const struct devlink *devlink) |
bfcd3a46 JP |
230 | { |
231 | return read_pnet(&devlink->_net); | |
232 | } | |
471f894f | 233 | EXPORT_SYMBOL_GPL(devlink_net); |
bfcd3a46 | 234 | |
30bab7cd JP |
235 | static void __devlink_put_rcu(struct rcu_head *head) |
236 | { | |
237 | struct devlink *devlink = container_of(head, struct devlink, rcu); | |
238 | ||
239 | complete(&devlink->comp); | |
240 | } | |
241 | ||
46db1b77 | 242 | void devlink_put(struct devlink *devlink) |
437ebfd9 LR |
243 | { |
244 | if (refcount_dec_and_test(&devlink->refcount)) | |
30bab7cd JP |
245 | /* Make sure unregister operation that may await the completion |
246 | * is unblocked only after all users are after the end of | |
247 | * RCU grace period. | |
248 | */ | |
249 | call_rcu(&devlink->rcu, __devlink_put_rcu); | |
437ebfd9 LR |
250 | } |
251 | ||
46db1b77 | 252 | struct devlink *__must_check devlink_try_get(struct devlink *devlink) |
437ebfd9 | 253 | { |
46db1b77 JK |
254 | if (refcount_inc_not_zero(&devlink->refcount)) |
255 | return devlink; | |
256 | return NULL; | |
437ebfd9 LR |
257 | } |
258 | ||
2cb7b489 JK |
259 | void devl_assert_locked(struct devlink *devlink) |
260 | { | |
261 | lockdep_assert_held(&devlink->lock); | |
262 | } | |
263 | EXPORT_SYMBOL_GPL(devl_assert_locked); | |
264 | ||
265 | #ifdef CONFIG_LOCKDEP | |
266 | /* For use in conjunction with LOCKDEP only e.g. rcu_dereference_protected() */ | |
267 | bool devl_lock_is_held(struct devlink *devlink) | |
268 | { | |
269 | return lockdep_is_held(&devlink->lock); | |
270 | } | |
271 | EXPORT_SYMBOL_GPL(devl_lock_is_held); | |
272 | #endif | |
273 | ||
274 | void devl_lock(struct devlink *devlink) | |
275 | { | |
276 | mutex_lock(&devlink->lock); | |
277 | } | |
278 | EXPORT_SYMBOL_GPL(devl_lock); | |
279 | ||
012ec02a JP |
280 | int devl_trylock(struct devlink *devlink) |
281 | { | |
282 | return mutex_trylock(&devlink->lock); | |
283 | } | |
284 | EXPORT_SYMBOL_GPL(devl_trylock); | |
285 | ||
2cb7b489 JK |
286 | void devl_unlock(struct devlink *devlink) |
287 | { | |
288 | mutex_unlock(&devlink->lock); | |
289 | } | |
290 | EXPORT_SYMBOL_GPL(devl_unlock); | |
291 | ||
30bab7cd | 292 | static struct devlink * |
294c4f57 | 293 | devlinks_xa_find_get(struct net *net, unsigned long *indexp, xa_mark_t filter, |
30bab7cd JP |
294 | void * (*xa_find_fn)(struct xarray *, unsigned long *, |
295 | unsigned long, xa_mark_t)) | |
296 | { | |
297 | struct devlink *devlink; | |
298 | ||
299 | rcu_read_lock(); | |
300 | retry: | |
301 | devlink = xa_find_fn(&devlinks, indexp, ULONG_MAX, DEVLINK_REGISTERED); | |
302 | if (!devlink) | |
303 | goto unlock; | |
c2368b19 JP |
304 | |
305 | /* In case devlink_unregister() was already called and "unregistering" | |
306 | * mark was set, do not allow to get a devlink reference here. | |
307 | * This prevents live-lock of devlink_unregister() wait for completion. | |
308 | */ | |
309 | if (xa_get_mark(&devlinks, *indexp, DEVLINK_UNREGISTERING)) | |
310 | goto retry; | |
311 | ||
30bab7cd JP |
312 | /* For a possible retry, the xa_find_after() should be always used */ |
313 | xa_find_fn = xa_find_after; | |
314 | if (!devlink_try_get(devlink)) | |
315 | goto retry; | |
294c4f57 JP |
316 | if (!net_eq(devlink_net(devlink), net)) { |
317 | devlink_put(devlink); | |
318 | goto retry; | |
319 | } | |
30bab7cd JP |
320 | unlock: |
321 | rcu_read_unlock(); | |
322 | return devlink; | |
323 | } | |
324 | ||
294c4f57 JP |
325 | static struct devlink *devlinks_xa_find_get_first(struct net *net, |
326 | unsigned long *indexp, | |
30bab7cd JP |
327 | xa_mark_t filter) |
328 | { | |
294c4f57 | 329 | return devlinks_xa_find_get(net, indexp, filter, xa_find); |
30bab7cd JP |
330 | } |
331 | ||
294c4f57 JP |
332 | static struct devlink *devlinks_xa_find_get_next(struct net *net, |
333 | unsigned long *indexp, | |
30bab7cd JP |
334 | xa_mark_t filter) |
335 | { | |
294c4f57 | 336 | return devlinks_xa_find_get(net, indexp, filter, xa_find_after); |
30bab7cd JP |
337 | } |
338 | ||
339 | /* Iterate over devlink pointers which were possible to get reference to. | |
340 | * devlink_put() needs to be called for each iterated devlink pointer | |
341 | * in loop body in order to release the reference. | |
342 | */ | |
294c4f57 JP |
343 | #define devlinks_xa_for_each_get(net, index, devlink, filter) \ |
344 | for (index = 0, \ | |
345 | devlink = devlinks_xa_find_get_first(net, &index, filter); \ | |
346 | devlink; devlink = devlinks_xa_find_get_next(net, &index, filter)) | |
30bab7cd | 347 | |
294c4f57 JP |
348 | #define devlinks_xa_for_each_registered_get(net, index, devlink) \ |
349 | devlinks_xa_for_each_get(net, index, devlink, DEVLINK_REGISTERED) | |
30bab7cd | 350 | |
bfcd3a46 JP |
351 | static struct devlink *devlink_get_from_attrs(struct net *net, |
352 | struct nlattr **attrs) | |
353 | { | |
354 | struct devlink *devlink; | |
11a861d7 | 355 | unsigned long index; |
bfcd3a46 JP |
356 | char *busname; |
357 | char *devname; | |
358 | ||
359 | if (!attrs[DEVLINK_ATTR_BUS_NAME] || !attrs[DEVLINK_ATTR_DEV_NAME]) | |
360 | return ERR_PTR(-EINVAL); | |
361 | ||
362 | busname = nla_data(attrs[DEVLINK_ATTR_BUS_NAME]); | |
363 | devname = nla_data(attrs[DEVLINK_ATTR_DEV_NAME]); | |
364 | ||
294c4f57 | 365 | devlinks_xa_for_each_registered_get(net, index, devlink) { |
bfcd3a46 | 366 | if (strcmp(devlink->dev->bus->name, busname) == 0 && |
294c4f57 | 367 | strcmp(dev_name(devlink->dev), devname) == 0) |
30bab7cd JP |
368 | return devlink; |
369 | devlink_put(devlink); | |
bfcd3a46 JP |
370 | } |
371 | ||
30bab7cd | 372 | return ERR_PTR(-ENODEV); |
bfcd3a46 JP |
373 | } |
374 | ||
3fcb698d | 375 | #define ASSERT_DEVLINK_PORT_REGISTERED(devlink_port) \ |
081adcfe | 376 | WARN_ON_ONCE(!(devlink_port)->registered) |
3fcb698d | 377 | #define ASSERT_DEVLINK_PORT_NOT_REGISTERED(devlink_port) \ |
081adcfe | 378 | WARN_ON_ONCE((devlink_port)->registered) |
ae3bbc04 JP |
379 | #define ASSERT_DEVLINK_PORT_INITIALIZED(devlink_port) \ |
380 | WARN_ON_ONCE(!(devlink_port)->initialized) | |
3fcb698d | 381 | |
bfcd3a46 | 382 | static struct devlink_port *devlink_port_get_by_index(struct devlink *devlink, |
c7282b50 | 383 | unsigned int port_index) |
bfcd3a46 JP |
384 | { |
385 | struct devlink_port *devlink_port; | |
386 | ||
387 | list_for_each_entry(devlink_port, &devlink->port_list, list) { | |
388 | if (devlink_port->index == port_index) | |
389 | return devlink_port; | |
390 | } | |
391 | return NULL; | |
392 | } | |
393 | ||
c7282b50 PP |
394 | static bool devlink_port_index_exists(struct devlink *devlink, |
395 | unsigned int port_index) | |
bfcd3a46 JP |
396 | { |
397 | return devlink_port_get_by_index(devlink, port_index); | |
398 | } | |
399 | ||
400 | static struct devlink_port *devlink_port_get_from_attrs(struct devlink *devlink, | |
401 | struct nlattr **attrs) | |
402 | { | |
403 | if (attrs[DEVLINK_ATTR_PORT_INDEX]) { | |
404 | u32 port_index = nla_get_u32(attrs[DEVLINK_ATTR_PORT_INDEX]); | |
405 | struct devlink_port *devlink_port; | |
406 | ||
407 | devlink_port = devlink_port_get_by_index(devlink, port_index); | |
408 | if (!devlink_port) | |
409 | return ERR_PTR(-ENODEV); | |
410 | return devlink_port; | |
411 | } | |
412 | return ERR_PTR(-EINVAL); | |
413 | } | |
414 | ||
415 | static struct devlink_port *devlink_port_get_from_info(struct devlink *devlink, | |
416 | struct genl_info *info) | |
417 | { | |
418 | return devlink_port_get_from_attrs(devlink, info->attrs); | |
419 | } | |
420 | ||
4677efc4 DL |
421 | static inline bool |
422 | devlink_rate_is_leaf(struct devlink_rate *devlink_rate) | |
423 | { | |
424 | return devlink_rate->type == DEVLINK_RATE_TYPE_LEAF; | |
425 | } | |
426 | ||
a8ecb93e DL |
427 | static inline bool |
428 | devlink_rate_is_node(struct devlink_rate *devlink_rate) | |
429 | { | |
430 | return devlink_rate->type == DEVLINK_RATE_TYPE_NODE; | |
431 | } | |
432 | ||
4677efc4 DL |
433 | static struct devlink_rate * |
434 | devlink_rate_leaf_get_from_info(struct devlink *devlink, struct genl_info *info) | |
435 | { | |
436 | struct devlink_rate *devlink_rate; | |
437 | struct devlink_port *devlink_port; | |
438 | ||
439 | devlink_port = devlink_port_get_from_attrs(devlink, info->attrs); | |
440 | if (IS_ERR(devlink_port)) | |
441 | return ERR_CAST(devlink_port); | |
442 | devlink_rate = devlink_port->devlink_rate; | |
443 | return devlink_rate ?: ERR_PTR(-ENODEV); | |
444 | } | |
445 | ||
a8ecb93e DL |
446 | static struct devlink_rate * |
447 | devlink_rate_node_get_by_name(struct devlink *devlink, const char *node_name) | |
448 | { | |
449 | static struct devlink_rate *devlink_rate; | |
450 | ||
451 | list_for_each_entry(devlink_rate, &devlink->rate_list, list) { | |
452 | if (devlink_rate_is_node(devlink_rate) && | |
453 | !strcmp(node_name, devlink_rate->name)) | |
454 | return devlink_rate; | |
455 | } | |
456 | return ERR_PTR(-ENODEV); | |
457 | } | |
458 | ||
459 | static struct devlink_rate * | |
460 | devlink_rate_node_get_from_attrs(struct devlink *devlink, struct nlattr **attrs) | |
461 | { | |
462 | const char *rate_node_name; | |
463 | size_t len; | |
464 | ||
465 | if (!attrs[DEVLINK_ATTR_RATE_NODE_NAME]) | |
466 | return ERR_PTR(-EINVAL); | |
467 | rate_node_name = nla_data(attrs[DEVLINK_ATTR_RATE_NODE_NAME]); | |
468 | len = strlen(rate_node_name); | |
469 | /* Name cannot be empty or decimal number */ | |
470 | if (!len || strspn(rate_node_name, "0123456789") == len) | |
471 | return ERR_PTR(-EINVAL); | |
472 | ||
473 | return devlink_rate_node_get_by_name(devlink, rate_node_name); | |
474 | } | |
475 | ||
476 | static struct devlink_rate * | |
477 | devlink_rate_node_get_from_info(struct devlink *devlink, struct genl_info *info) | |
478 | { | |
479 | return devlink_rate_node_get_from_attrs(devlink, info->attrs); | |
480 | } | |
481 | ||
482 | static struct devlink_rate * | |
483 | devlink_rate_get_from_info(struct devlink *devlink, struct genl_info *info) | |
484 | { | |
485 | struct nlattr **attrs = info->attrs; | |
486 | ||
487 | if (attrs[DEVLINK_ATTR_PORT_INDEX]) | |
488 | return devlink_rate_leaf_get_from_info(devlink, info); | |
489 | else if (attrs[DEVLINK_ATTR_RATE_NODE_NAME]) | |
490 | return devlink_rate_node_get_from_info(devlink, info); | |
491 | else | |
492 | return ERR_PTR(-EINVAL); | |
493 | } | |
494 | ||
c246f9b5 JP |
495 | static struct devlink_linecard * |
496 | devlink_linecard_get_by_index(struct devlink *devlink, | |
497 | unsigned int linecard_index) | |
498 | { | |
499 | struct devlink_linecard *devlink_linecard; | |
500 | ||
501 | list_for_each_entry(devlink_linecard, &devlink->linecard_list, list) { | |
502 | if (devlink_linecard->index == linecard_index) | |
503 | return devlink_linecard; | |
504 | } | |
505 | return NULL; | |
506 | } | |
507 | ||
508 | static bool devlink_linecard_index_exists(struct devlink *devlink, | |
509 | unsigned int linecard_index) | |
510 | { | |
511 | return devlink_linecard_get_by_index(devlink, linecard_index); | |
512 | } | |
513 | ||
514 | static struct devlink_linecard * | |
515 | devlink_linecard_get_from_attrs(struct devlink *devlink, struct nlattr **attrs) | |
516 | { | |
517 | if (attrs[DEVLINK_ATTR_LINECARD_INDEX]) { | |
518 | u32 linecard_index = nla_get_u32(attrs[DEVLINK_ATTR_LINECARD_INDEX]); | |
519 | struct devlink_linecard *linecard; | |
520 | ||
521 | mutex_lock(&devlink->linecards_lock); | |
522 | linecard = devlink_linecard_get_by_index(devlink, linecard_index); | |
523 | if (linecard) | |
524 | refcount_inc(&linecard->refcount); | |
525 | mutex_unlock(&devlink->linecards_lock); | |
526 | if (!linecard) | |
527 | return ERR_PTR(-ENODEV); | |
528 | return linecard; | |
529 | } | |
530 | return ERR_PTR(-EINVAL); | |
531 | } | |
532 | ||
533 | static struct devlink_linecard * | |
534 | devlink_linecard_get_from_info(struct devlink *devlink, struct genl_info *info) | |
535 | { | |
536 | return devlink_linecard_get_from_attrs(devlink, info->attrs); | |
537 | } | |
538 | ||
539 | static void devlink_linecard_put(struct devlink_linecard *linecard) | |
540 | { | |
fcdc8ce2 JP |
541 | if (refcount_dec_and_test(&linecard->refcount)) { |
542 | mutex_destroy(&linecard->state_lock); | |
c246f9b5 | 543 | kfree(linecard); |
fcdc8ce2 | 544 | } |
c246f9b5 JP |
545 | } |
546 | ||
bf797471 JP |
547 | struct devlink_sb { |
548 | struct list_head list; | |
549 | unsigned int index; | |
550 | u32 size; | |
551 | u16 ingress_pools_count; | |
552 | u16 egress_pools_count; | |
553 | u16 ingress_tc_count; | |
554 | u16 egress_tc_count; | |
555 | }; | |
556 | ||
557 | static u16 devlink_sb_pool_count(struct devlink_sb *devlink_sb) | |
558 | { | |
559 | return devlink_sb->ingress_pools_count + devlink_sb->egress_pools_count; | |
560 | } | |
561 | ||
562 | static struct devlink_sb *devlink_sb_get_by_index(struct devlink *devlink, | |
563 | unsigned int sb_index) | |
564 | { | |
565 | struct devlink_sb *devlink_sb; | |
566 | ||
567 | list_for_each_entry(devlink_sb, &devlink->sb_list, list) { | |
568 | if (devlink_sb->index == sb_index) | |
569 | return devlink_sb; | |
570 | } | |
571 | return NULL; | |
572 | } | |
573 | ||
574 | static bool devlink_sb_index_exists(struct devlink *devlink, | |
575 | unsigned int sb_index) | |
576 | { | |
577 | return devlink_sb_get_by_index(devlink, sb_index); | |
578 | } | |
579 | ||
580 | static struct devlink_sb *devlink_sb_get_from_attrs(struct devlink *devlink, | |
581 | struct nlattr **attrs) | |
582 | { | |
583 | if (attrs[DEVLINK_ATTR_SB_INDEX]) { | |
584 | u32 sb_index = nla_get_u32(attrs[DEVLINK_ATTR_SB_INDEX]); | |
585 | struct devlink_sb *devlink_sb; | |
586 | ||
587 | devlink_sb = devlink_sb_get_by_index(devlink, sb_index); | |
588 | if (!devlink_sb) | |
589 | return ERR_PTR(-ENODEV); | |
590 | return devlink_sb; | |
591 | } | |
592 | return ERR_PTR(-EINVAL); | |
593 | } | |
594 | ||
595 | static struct devlink_sb *devlink_sb_get_from_info(struct devlink *devlink, | |
596 | struct genl_info *info) | |
597 | { | |
598 | return devlink_sb_get_from_attrs(devlink, info->attrs); | |
599 | } | |
600 | ||
601 | static int devlink_sb_pool_index_get_from_attrs(struct devlink_sb *devlink_sb, | |
602 | struct nlattr **attrs, | |
603 | u16 *p_pool_index) | |
604 | { | |
605 | u16 val; | |
606 | ||
607 | if (!attrs[DEVLINK_ATTR_SB_POOL_INDEX]) | |
608 | return -EINVAL; | |
609 | ||
610 | val = nla_get_u16(attrs[DEVLINK_ATTR_SB_POOL_INDEX]); | |
611 | if (val >= devlink_sb_pool_count(devlink_sb)) | |
612 | return -EINVAL; | |
613 | *p_pool_index = val; | |
614 | return 0; | |
615 | } | |
616 | ||
617 | static int devlink_sb_pool_index_get_from_info(struct devlink_sb *devlink_sb, | |
618 | struct genl_info *info, | |
619 | u16 *p_pool_index) | |
620 | { | |
621 | return devlink_sb_pool_index_get_from_attrs(devlink_sb, info->attrs, | |
622 | p_pool_index); | |
623 | } | |
624 | ||
625 | static int | |
626 | devlink_sb_pool_type_get_from_attrs(struct nlattr **attrs, | |
627 | enum devlink_sb_pool_type *p_pool_type) | |
628 | { | |
629 | u8 val; | |
630 | ||
631 | if (!attrs[DEVLINK_ATTR_SB_POOL_TYPE]) | |
632 | return -EINVAL; | |
633 | ||
634 | val = nla_get_u8(attrs[DEVLINK_ATTR_SB_POOL_TYPE]); | |
635 | if (val != DEVLINK_SB_POOL_TYPE_INGRESS && | |
636 | val != DEVLINK_SB_POOL_TYPE_EGRESS) | |
637 | return -EINVAL; | |
638 | *p_pool_type = val; | |
639 | return 0; | |
640 | } | |
641 | ||
642 | static int | |
643 | devlink_sb_pool_type_get_from_info(struct genl_info *info, | |
644 | enum devlink_sb_pool_type *p_pool_type) | |
645 | { | |
646 | return devlink_sb_pool_type_get_from_attrs(info->attrs, p_pool_type); | |
647 | } | |
648 | ||
649 | static int | |
650 | devlink_sb_th_type_get_from_attrs(struct nlattr **attrs, | |
651 | enum devlink_sb_threshold_type *p_th_type) | |
652 | { | |
653 | u8 val; | |
654 | ||
655 | if (!attrs[DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE]) | |
656 | return -EINVAL; | |
657 | ||
658 | val = nla_get_u8(attrs[DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE]); | |
659 | if (val != DEVLINK_SB_THRESHOLD_TYPE_STATIC && | |
660 | val != DEVLINK_SB_THRESHOLD_TYPE_DYNAMIC) | |
661 | return -EINVAL; | |
662 | *p_th_type = val; | |
663 | return 0; | |
664 | } | |
665 | ||
666 | static int | |
667 | devlink_sb_th_type_get_from_info(struct genl_info *info, | |
668 | enum devlink_sb_threshold_type *p_th_type) | |
669 | { | |
670 | return devlink_sb_th_type_get_from_attrs(info->attrs, p_th_type); | |
671 | } | |
672 | ||
673 | static int | |
674 | devlink_sb_tc_index_get_from_attrs(struct devlink_sb *devlink_sb, | |
675 | struct nlattr **attrs, | |
676 | enum devlink_sb_pool_type pool_type, | |
677 | u16 *p_tc_index) | |
678 | { | |
679 | u16 val; | |
680 | ||
681 | if (!attrs[DEVLINK_ATTR_SB_TC_INDEX]) | |
682 | return -EINVAL; | |
683 | ||
684 | val = nla_get_u16(attrs[DEVLINK_ATTR_SB_TC_INDEX]); | |
685 | if (pool_type == DEVLINK_SB_POOL_TYPE_INGRESS && | |
686 | val >= devlink_sb->ingress_tc_count) | |
687 | return -EINVAL; | |
688 | if (pool_type == DEVLINK_SB_POOL_TYPE_EGRESS && | |
689 | val >= devlink_sb->egress_tc_count) | |
690 | return -EINVAL; | |
691 | *p_tc_index = val; | |
692 | return 0; | |
693 | } | |
694 | ||
695 | static int | |
696 | devlink_sb_tc_index_get_from_info(struct devlink_sb *devlink_sb, | |
697 | struct genl_info *info, | |
698 | enum devlink_sb_pool_type pool_type, | |
699 | u16 *p_tc_index) | |
700 | { | |
701 | return devlink_sb_tc_index_get_from_attrs(devlink_sb, info->attrs, | |
702 | pool_type, p_tc_index); | |
703 | } | |
704 | ||
b16ebe92 AV |
705 | struct devlink_region { |
706 | struct devlink *devlink; | |
544e7c33 | 707 | struct devlink_port *port; |
b16ebe92 | 708 | struct list_head list; |
544e7c33 AL |
709 | union { |
710 | const struct devlink_region_ops *ops; | |
711 | const struct devlink_port_region_ops *port_ops; | |
712 | }; | |
2dec18ad JP |
713 | struct mutex snapshot_lock; /* protects snapshot_list, |
714 | * max_snapshots and cur_snapshots | |
715 | * consistency. | |
716 | */ | |
b16ebe92 AV |
717 | struct list_head snapshot_list; |
718 | u32 max_snapshots; | |
719 | u32 cur_snapshots; | |
720 | u64 size; | |
721 | }; | |
722 | ||
d7e52722 AV |
723 | struct devlink_snapshot { |
724 | struct list_head list; | |
725 | struct devlink_region *region; | |
d7e52722 AV |
726 | u8 *data; |
727 | u32 id; | |
728 | }; | |
729 | ||
b16ebe92 AV |
730 | static struct devlink_region * |
731 | devlink_region_get_by_name(struct devlink *devlink, const char *region_name) | |
732 | { | |
733 | struct devlink_region *region; | |
734 | ||
735 | list_for_each_entry(region, &devlink->region_list, list) | |
e8937681 | 736 | if (!strcmp(region->ops->name, region_name)) |
b16ebe92 AV |
737 | return region; |
738 | ||
739 | return NULL; | |
740 | } | |
741 | ||
544e7c33 AL |
742 | static struct devlink_region * |
743 | devlink_port_region_get_by_name(struct devlink_port *port, | |
744 | const char *region_name) | |
745 | { | |
746 | struct devlink_region *region; | |
747 | ||
748 | list_for_each_entry(region, &port->region_list, list) | |
749 | if (!strcmp(region->ops->name, region_name)) | |
750 | return region; | |
751 | ||
752 | return NULL; | |
753 | } | |
754 | ||
d7e52722 AV |
755 | static struct devlink_snapshot * |
756 | devlink_region_snapshot_get_by_id(struct devlink_region *region, u32 id) | |
757 | { | |
758 | struct devlink_snapshot *snapshot; | |
759 | ||
760 | list_for_each_entry(snapshot, ®ion->snapshot_list, list) | |
761 | if (snapshot->id == id) | |
762 | return snapshot; | |
763 | ||
764 | return NULL; | |
765 | } | |
766 | ||
637989b5 PP |
767 | #define DEVLINK_NL_FLAG_NEED_PORT BIT(0) |
768 | #define DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT BIT(1) | |
4677efc4 | 769 | #define DEVLINK_NL_FLAG_NEED_RATE BIT(2) |
a8ecb93e | 770 | #define DEVLINK_NL_FLAG_NEED_RATE_NODE BIT(3) |
c246f9b5 | 771 | #define DEVLINK_NL_FLAG_NEED_LINECARD BIT(4) |
2406e7e5 | 772 | |
20b0b53a | 773 | static int devlink_nl_pre_doit(const struct genl_split_ops *ops, |
bfcd3a46 JP |
774 | struct sk_buff *skb, struct genl_info *info) |
775 | { | |
c246f9b5 | 776 | struct devlink_linecard *linecard; |
f4f54166 | 777 | struct devlink_port *devlink_port; |
bfcd3a46 | 778 | struct devlink *devlink; |
2406e7e5 | 779 | int err; |
bfcd3a46 | 780 | |
437ebfd9 | 781 | devlink = devlink_get_from_attrs(genl_info_net(info), info->attrs); |
d3efc2a6 | 782 | if (IS_ERR(devlink)) |
bfcd3a46 | 783 | return PTR_ERR(devlink); |
644a66c6 | 784 | devl_lock(devlink); |
637989b5 PP |
785 | info->user_ptr[0] = devlink; |
786 | if (ops->internal_flags & DEVLINK_NL_FLAG_NEED_PORT) { | |
bfcd3a46 JP |
787 | devlink_port = devlink_port_get_from_info(devlink, info); |
788 | if (IS_ERR(devlink_port)) { | |
2406e7e5 AS |
789 | err = PTR_ERR(devlink_port); |
790 | goto unlock; | |
bfcd3a46 | 791 | } |
637989b5 | 792 | info->user_ptr[1] = devlink_port; |
f4f54166 | 793 | } else if (ops->internal_flags & DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT) { |
f4f54166 VT |
794 | devlink_port = devlink_port_get_from_info(devlink, info); |
795 | if (!IS_ERR(devlink_port)) | |
796 | info->user_ptr[1] = devlink_port; | |
4677efc4 DL |
797 | } else if (ops->internal_flags & DEVLINK_NL_FLAG_NEED_RATE) { |
798 | struct devlink_rate *devlink_rate; | |
799 | ||
a8ecb93e | 800 | devlink_rate = devlink_rate_get_from_info(devlink, info); |
4677efc4 DL |
801 | if (IS_ERR(devlink_rate)) { |
802 | err = PTR_ERR(devlink_rate); | |
803 | goto unlock; | |
804 | } | |
805 | info->user_ptr[1] = devlink_rate; | |
a8ecb93e DL |
806 | } else if (ops->internal_flags & DEVLINK_NL_FLAG_NEED_RATE_NODE) { |
807 | struct devlink_rate *rate_node; | |
808 | ||
809 | rate_node = devlink_rate_node_get_from_info(devlink, info); | |
810 | if (IS_ERR(rate_node)) { | |
811 | err = PTR_ERR(rate_node); | |
812 | goto unlock; | |
813 | } | |
814 | info->user_ptr[1] = rate_node; | |
c246f9b5 JP |
815 | } else if (ops->internal_flags & DEVLINK_NL_FLAG_NEED_LINECARD) { |
816 | linecard = devlink_linecard_get_from_info(devlink, info); | |
817 | if (IS_ERR(linecard)) { | |
818 | err = PTR_ERR(linecard); | |
819 | goto unlock; | |
820 | } | |
821 | info->user_ptr[1] = linecard; | |
bfcd3a46 JP |
822 | } |
823 | return 0; | |
2406e7e5 AS |
824 | |
825 | unlock: | |
644a66c6 | 826 | devl_unlock(devlink); |
437ebfd9 | 827 | devlink_put(devlink); |
2406e7e5 | 828 | return err; |
bfcd3a46 JP |
829 | } |
830 | ||
20b0b53a | 831 | static void devlink_nl_post_doit(const struct genl_split_ops *ops, |
bfcd3a46 JP |
832 | struct sk_buff *skb, struct genl_info *info) |
833 | { | |
c246f9b5 | 834 | struct devlink_linecard *linecard; |
2406e7e5 AS |
835 | struct devlink *devlink; |
836 | ||
637989b5 | 837 | devlink = info->user_ptr[0]; |
c246f9b5 JP |
838 | if (ops->internal_flags & DEVLINK_NL_FLAG_NEED_LINECARD) { |
839 | linecard = info->user_ptr[1]; | |
840 | devlink_linecard_put(linecard); | |
841 | } | |
644a66c6 | 842 | devl_unlock(devlink); |
437ebfd9 | 843 | devlink_put(devlink); |
bfcd3a46 JP |
844 | } |
845 | ||
489111e5 | 846 | static struct genl_family devlink_nl_family; |
bfcd3a46 JP |
847 | |
848 | enum devlink_multicast_groups { | |
849 | DEVLINK_MCGRP_CONFIG, | |
850 | }; | |
851 | ||
852 | static const struct genl_multicast_group devlink_nl_mcgrps[] = { | |
853 | [DEVLINK_MCGRP_CONFIG] = { .name = DEVLINK_GENL_MCGRP_CONFIG_NAME }, | |
854 | }; | |
855 | ||
856 | static int devlink_nl_put_handle(struct sk_buff *msg, struct devlink *devlink) | |
857 | { | |
858 | if (nla_put_string(msg, DEVLINK_ATTR_BUS_NAME, devlink->dev->bus->name)) | |
859 | return -EMSGSIZE; | |
860 | if (nla_put_string(msg, DEVLINK_ATTR_DEV_NAME, dev_name(devlink->dev))) | |
861 | return -EMSGSIZE; | |
862 | return 0; | |
863 | } | |
864 | ||
7b2d9a1a JP |
865 | static int devlink_nl_put_nested_handle(struct sk_buff *msg, struct devlink *devlink) |
866 | { | |
867 | struct nlattr *nested_attr; | |
868 | ||
869 | nested_attr = nla_nest_start(msg, DEVLINK_ATTR_NESTED_DEVLINK); | |
870 | if (!nested_attr) | |
871 | return -EMSGSIZE; | |
872 | if (devlink_nl_put_handle(msg, devlink)) | |
873 | goto nla_put_failure; | |
874 | ||
875 | nla_nest_end(msg, nested_attr); | |
876 | return 0; | |
877 | ||
878 | nla_put_failure: | |
879 | nla_nest_cancel(msg, nested_attr); | |
880 | return -EMSGSIZE; | |
881 | } | |
882 | ||
dca56c30 JP |
883 | int devlink_nl_port_handle_fill(struct sk_buff *msg, struct devlink_port *devlink_port) |
884 | { | |
885 | if (devlink_nl_put_handle(msg, devlink_port->devlink)) | |
886 | return -EMSGSIZE; | |
887 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, devlink_port->index)) | |
888 | return -EMSGSIZE; | |
889 | return 0; | |
890 | } | |
891 | ||
892 | size_t devlink_nl_port_handle_size(struct devlink_port *devlink_port) | |
893 | { | |
894 | struct devlink *devlink = devlink_port->devlink; | |
895 | ||
896 | return nla_total_size(strlen(devlink->dev->bus->name) + 1) /* DEVLINK_ATTR_BUS_NAME */ | |
897 | + nla_total_size(strlen(dev_name(devlink->dev)) + 1) /* DEVLINK_ATTR_DEV_NAME */ | |
898 | + nla_total_size(4); /* DEVLINK_ATTR_PORT_INDEX */ | |
899 | } | |
900 | ||
dc64cc7c MS |
901 | struct devlink_reload_combination { |
902 | enum devlink_reload_action action; | |
903 | enum devlink_reload_limit limit; | |
904 | }; | |
905 | ||
906 | static const struct devlink_reload_combination devlink_reload_invalid_combinations[] = { | |
907 | { | |
908 | /* can't reinitialize driver with no down time */ | |
909 | .action = DEVLINK_RELOAD_ACTION_DRIVER_REINIT, | |
910 | .limit = DEVLINK_RELOAD_LIMIT_NO_RESET, | |
911 | }, | |
912 | }; | |
913 | ||
914 | static bool | |
915 | devlink_reload_combination_is_invalid(enum devlink_reload_action action, | |
916 | enum devlink_reload_limit limit) | |
917 | { | |
918 | int i; | |
919 | ||
920 | for (i = 0; i < ARRAY_SIZE(devlink_reload_invalid_combinations); i++) | |
921 | if (devlink_reload_invalid_combinations[i].action == action && | |
922 | devlink_reload_invalid_combinations[i].limit == limit) | |
923 | return true; | |
924 | return false; | |
925 | } | |
926 | ||
ccdf0721 MS |
927 | static bool |
928 | devlink_reload_action_is_supported(struct devlink *devlink, enum devlink_reload_action action) | |
929 | { | |
930 | return test_bit(action, &devlink->ops->reload_actions); | |
931 | } | |
932 | ||
dc64cc7c MS |
933 | static bool |
934 | devlink_reload_limit_is_supported(struct devlink *devlink, enum devlink_reload_limit limit) | |
935 | { | |
936 | return test_bit(limit, &devlink->ops->reload_limits); | |
937 | } | |
938 | ||
5204bb68 | 939 | static int devlink_reload_stat_put(struct sk_buff *msg, |
a254c264 MS |
940 | enum devlink_reload_limit limit, u32 value) |
941 | { | |
942 | struct nlattr *reload_stats_entry; | |
943 | ||
944 | reload_stats_entry = nla_nest_start(msg, DEVLINK_ATTR_RELOAD_STATS_ENTRY); | |
945 | if (!reload_stats_entry) | |
946 | return -EMSGSIZE; | |
947 | ||
5204bb68 | 948 | if (nla_put_u8(msg, DEVLINK_ATTR_RELOAD_STATS_LIMIT, limit) || |
a254c264 MS |
949 | nla_put_u32(msg, DEVLINK_ATTR_RELOAD_STATS_VALUE, value)) |
950 | goto nla_put_failure; | |
951 | nla_nest_end(msg, reload_stats_entry); | |
952 | return 0; | |
953 | ||
954 | nla_put_failure: | |
955 | nla_nest_cancel(msg, reload_stats_entry); | |
956 | return -EMSGSIZE; | |
957 | } | |
958 | ||
77069ba2 | 959 | static int devlink_reload_stats_put(struct sk_buff *msg, struct devlink *devlink, bool is_remote) |
a254c264 | 960 | { |
5204bb68 | 961 | struct nlattr *reload_stats_attr, *act_info, *act_stats; |
a254c264 MS |
962 | int i, j, stat_idx; |
963 | u32 value; | |
964 | ||
77069ba2 MS |
965 | if (!is_remote) |
966 | reload_stats_attr = nla_nest_start(msg, DEVLINK_ATTR_RELOAD_STATS); | |
967 | else | |
968 | reload_stats_attr = nla_nest_start(msg, DEVLINK_ATTR_REMOTE_RELOAD_STATS); | |
a254c264 MS |
969 | |
970 | if (!reload_stats_attr) | |
971 | return -EMSGSIZE; | |
972 | ||
5204bb68 MS |
973 | for (i = 0; i <= DEVLINK_RELOAD_ACTION_MAX; i++) { |
974 | if ((!is_remote && | |
975 | !devlink_reload_action_is_supported(devlink, i)) || | |
976 | i == DEVLINK_RELOAD_ACTION_UNSPEC) | |
a254c264 | 977 | continue; |
5204bb68 MS |
978 | act_info = nla_nest_start(msg, DEVLINK_ATTR_RELOAD_ACTION_INFO); |
979 | if (!act_info) | |
980 | goto nla_put_failure; | |
981 | ||
982 | if (nla_put_u8(msg, DEVLINK_ATTR_RELOAD_ACTION, i)) | |
983 | goto action_info_nest_cancel; | |
984 | act_stats = nla_nest_start(msg, DEVLINK_ATTR_RELOAD_ACTION_STATS); | |
985 | if (!act_stats) | |
986 | goto action_info_nest_cancel; | |
987 | ||
988 | for (j = 0; j <= DEVLINK_RELOAD_LIMIT_MAX; j++) { | |
989 | /* Remote stats are shown even if not locally supported. | |
990 | * Stats of actions with unspecified limit are shown | |
991 | * though drivers don't need to register unspecified | |
992 | * limit. | |
993 | */ | |
994 | if ((!is_remote && j != DEVLINK_RELOAD_LIMIT_UNSPEC && | |
995 | !devlink_reload_limit_is_supported(devlink, j)) || | |
a254c264 MS |
996 | devlink_reload_combination_is_invalid(i, j)) |
997 | continue; | |
998 | ||
999 | stat_idx = j * __DEVLINK_RELOAD_ACTION_MAX + i; | |
77069ba2 MS |
1000 | if (!is_remote) |
1001 | value = devlink->stats.reload_stats[stat_idx]; | |
1002 | else | |
1003 | value = devlink->stats.remote_reload_stats[stat_idx]; | |
5204bb68 MS |
1004 | if (devlink_reload_stat_put(msg, j, value)) |
1005 | goto action_stats_nest_cancel; | |
a254c264 | 1006 | } |
5204bb68 MS |
1007 | nla_nest_end(msg, act_stats); |
1008 | nla_nest_end(msg, act_info); | |
a254c264 MS |
1009 | } |
1010 | nla_nest_end(msg, reload_stats_attr); | |
1011 | return 0; | |
1012 | ||
5204bb68 MS |
1013 | action_stats_nest_cancel: |
1014 | nla_nest_cancel(msg, act_stats); | |
1015 | action_info_nest_cancel: | |
1016 | nla_nest_cancel(msg, act_info); | |
a254c264 MS |
1017 | nla_put_failure: |
1018 | nla_nest_cancel(msg, reload_stats_attr); | |
1019 | return -EMSGSIZE; | |
1020 | } | |
1021 | ||
bfcd3a46 JP |
1022 | static int devlink_nl_fill(struct sk_buff *msg, struct devlink *devlink, |
1023 | enum devlink_command cmd, u32 portid, | |
1024 | u32 seq, int flags) | |
1025 | { | |
a254c264 | 1026 | struct nlattr *dev_stats; |
bfcd3a46 JP |
1027 | void *hdr; |
1028 | ||
1029 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
1030 | if (!hdr) | |
1031 | return -EMSGSIZE; | |
1032 | ||
1033 | if (devlink_nl_put_handle(msg, devlink)) | |
1034 | goto nla_put_failure; | |
2670ac26 JP |
1035 | if (nla_put_u8(msg, DEVLINK_ATTR_RELOAD_FAILED, devlink->reload_failed)) |
1036 | goto nla_put_failure; | |
bfcd3a46 | 1037 | |
a254c264 MS |
1038 | dev_stats = nla_nest_start(msg, DEVLINK_ATTR_DEV_STATS); |
1039 | if (!dev_stats) | |
1040 | goto nla_put_failure; | |
1041 | ||
77069ba2 MS |
1042 | if (devlink_reload_stats_put(msg, devlink, false)) |
1043 | goto dev_stats_nest_cancel; | |
1044 | if (devlink_reload_stats_put(msg, devlink, true)) | |
a254c264 MS |
1045 | goto dev_stats_nest_cancel; |
1046 | ||
1047 | nla_nest_end(msg, dev_stats); | |
bfcd3a46 JP |
1048 | genlmsg_end(msg, hdr); |
1049 | return 0; | |
1050 | ||
a254c264 MS |
1051 | dev_stats_nest_cancel: |
1052 | nla_nest_cancel(msg, dev_stats); | |
bfcd3a46 JP |
1053 | nla_put_failure: |
1054 | genlmsg_cancel(msg, hdr); | |
1055 | return -EMSGSIZE; | |
1056 | } | |
1057 | ||
1058 | static void devlink_notify(struct devlink *devlink, enum devlink_command cmd) | |
1059 | { | |
1060 | struct sk_buff *msg; | |
1061 | int err; | |
1062 | ||
1063 | WARN_ON(cmd != DEVLINK_CMD_NEW && cmd != DEVLINK_CMD_DEL); | |
cf530217 | 1064 | WARN_ON(!xa_get_mark(&devlinks, devlink->index, DEVLINK_REGISTERED)); |
bfcd3a46 JP |
1065 | |
1066 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
1067 | if (!msg) | |
1068 | return; | |
1069 | ||
1070 | err = devlink_nl_fill(msg, devlink, cmd, 0, 0, 0); | |
1071 | if (err) { | |
1072 | nlmsg_free(msg); | |
1073 | return; | |
1074 | } | |
1075 | ||
1076 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), | |
1077 | msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
1078 | } | |
1079 | ||
b9ffcbaf JP |
1080 | static int devlink_nl_port_attrs_put(struct sk_buff *msg, |
1081 | struct devlink_port *devlink_port) | |
1082 | { | |
1083 | struct devlink_port_attrs *attrs = &devlink_port->attrs; | |
1084 | ||
10a429ba | 1085 | if (!devlink_port->attrs_set) |
b9ffcbaf | 1086 | return 0; |
a21cf0a8 DR |
1087 | if (attrs->lanes) { |
1088 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_LANES, attrs->lanes)) | |
1089 | return -EMSGSIZE; | |
1090 | } | |
a0f49b54 DR |
1091 | if (nla_put_u8(msg, DEVLINK_ATTR_PORT_SPLITTABLE, attrs->splittable)) |
1092 | return -EMSGSIZE; | |
5ec1380a JP |
1093 | if (nla_put_u16(msg, DEVLINK_ATTR_PORT_FLAVOUR, attrs->flavour)) |
1094 | return -EMSGSIZE; | |
58b6be41 PP |
1095 | switch (devlink_port->attrs.flavour) { |
1096 | case DEVLINK_PORT_FLAVOUR_PCI_PF: | |
3a2d9588 PP |
1097 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_CONTROLLER_NUMBER, |
1098 | attrs->pci_pf.controller) || | |
1099 | nla_put_u16(msg, DEVLINK_ATTR_PORT_PCI_PF_NUMBER, attrs->pci_pf.pf)) | |
98fd2d65 | 1100 | return -EMSGSIZE; |
05b595e9 PP |
1101 | if (nla_put_u8(msg, DEVLINK_ATTR_PORT_EXTERNAL, attrs->pci_pf.external)) |
1102 | return -EMSGSIZE; | |
58b6be41 PP |
1103 | break; |
1104 | case DEVLINK_PORT_FLAVOUR_PCI_VF: | |
3a2d9588 PP |
1105 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_CONTROLLER_NUMBER, |
1106 | attrs->pci_vf.controller) || | |
1107 | nla_put_u16(msg, DEVLINK_ATTR_PORT_PCI_PF_NUMBER, attrs->pci_vf.pf) || | |
1108 | nla_put_u16(msg, DEVLINK_ATTR_PORT_PCI_VF_NUMBER, attrs->pci_vf.vf)) | |
e41b6bf3 | 1109 | return -EMSGSIZE; |
05b595e9 PP |
1110 | if (nla_put_u8(msg, DEVLINK_ATTR_PORT_EXTERNAL, attrs->pci_vf.external)) |
1111 | return -EMSGSIZE; | |
58b6be41 | 1112 | break; |
b8288837 PP |
1113 | case DEVLINK_PORT_FLAVOUR_PCI_SF: |
1114 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_CONTROLLER_NUMBER, | |
1115 | attrs->pci_sf.controller) || | |
1116 | nla_put_u16(msg, DEVLINK_ATTR_PORT_PCI_PF_NUMBER, | |
1117 | attrs->pci_sf.pf) || | |
1118 | nla_put_u32(msg, DEVLINK_ATTR_PORT_PCI_SF_NUMBER, | |
1119 | attrs->pci_sf.sf)) | |
1120 | return -EMSGSIZE; | |
1121 | break; | |
58b6be41 PP |
1122 | case DEVLINK_PORT_FLAVOUR_PHYSICAL: |
1123 | case DEVLINK_PORT_FLAVOUR_CPU: | |
1124 | case DEVLINK_PORT_FLAVOUR_DSA: | |
1125 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_NUMBER, | |
1126 | attrs->phys.port_number)) | |
1127 | return -EMSGSIZE; | |
1128 | if (!attrs->split) | |
1129 | return 0; | |
1130 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_SPLIT_GROUP, | |
1131 | attrs->phys.port_number)) | |
1132 | return -EMSGSIZE; | |
1133 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_SPLIT_SUBPORT_NUMBER, | |
1134 | attrs->phys.split_subport_number)) | |
1135 | return -EMSGSIZE; | |
1136 | break; | |
1137 | default: | |
1138 | break; | |
98fd2d65 | 1139 | } |
b9ffcbaf JP |
1140 | return 0; |
1141 | } | |
1142 | ||
82564f6c LR |
1143 | static int devlink_port_fn_hw_addr_fill(const struct devlink_ops *ops, |
1144 | struct devlink_port *port, | |
1145 | struct sk_buff *msg, | |
1146 | struct netlink_ext_ack *extack, | |
1147 | bool *msg_updated) | |
1230d948 PP |
1148 | { |
1149 | u8 hw_addr[MAX_ADDR_LEN]; | |
1150 | int hw_addr_len; | |
1151 | int err; | |
1152 | ||
1153 | if (!ops->port_function_hw_addr_get) | |
1154 | return 0; | |
1155 | ||
82564f6c LR |
1156 | err = ops->port_function_hw_addr_get(port, hw_addr, &hw_addr_len, |
1157 | extack); | |
1230d948 PP |
1158 | if (err) { |
1159 | if (err == -EOPNOTSUPP) | |
1160 | return 0; | |
1161 | return err; | |
1162 | } | |
1163 | err = nla_put(msg, DEVLINK_PORT_FUNCTION_ATTR_HW_ADDR, hw_addr_len, hw_addr); | |
1164 | if (err) | |
1165 | return err; | |
1166 | *msg_updated = true; | |
1167 | return 0; | |
1168 | } | |
1169 | ||
4677efc4 | 1170 | static int devlink_nl_rate_fill(struct sk_buff *msg, |
4677efc4 | 1171 | struct devlink_rate *devlink_rate, |
7ca973dc LR |
1172 | enum devlink_command cmd, u32 portid, u32 seq, |
1173 | int flags, struct netlink_ext_ack *extack) | |
4677efc4 | 1174 | { |
7ca973dc | 1175 | struct devlink *devlink = devlink_rate->devlink; |
4677efc4 DL |
1176 | void *hdr; |
1177 | ||
1178 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
1179 | if (!hdr) | |
1180 | return -EMSGSIZE; | |
1181 | ||
1182 | if (devlink_nl_put_handle(msg, devlink)) | |
1183 | goto nla_put_failure; | |
1184 | ||
1185 | if (nla_put_u16(msg, DEVLINK_ATTR_RATE_TYPE, devlink_rate->type)) | |
1186 | goto nla_put_failure; | |
1187 | ||
1188 | if (devlink_rate_is_leaf(devlink_rate)) { | |
1189 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, | |
1190 | devlink_rate->devlink_port->index)) | |
1191 | goto nla_put_failure; | |
a8ecb93e DL |
1192 | } else if (devlink_rate_is_node(devlink_rate)) { |
1193 | if (nla_put_string(msg, DEVLINK_ATTR_RATE_NODE_NAME, | |
1194 | devlink_rate->name)) | |
1195 | goto nla_put_failure; | |
4677efc4 DL |
1196 | } |
1197 | ||
1897db2e DL |
1198 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_RATE_TX_SHARE, |
1199 | devlink_rate->tx_share, DEVLINK_ATTR_PAD)) | |
1200 | goto nla_put_failure; | |
1201 | ||
1202 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_RATE_TX_MAX, | |
1203 | devlink_rate->tx_max, DEVLINK_ATTR_PAD)) | |
1204 | goto nla_put_failure; | |
1205 | ||
cd502236 MW |
1206 | if (nla_put_u32(msg, DEVLINK_ATTR_RATE_TX_PRIORITY, |
1207 | devlink_rate->tx_priority)) | |
1208 | goto nla_put_failure; | |
6e2d7e84 MW |
1209 | |
1210 | if (nla_put_u32(msg, DEVLINK_ATTR_RATE_TX_WEIGHT, | |
1211 | devlink_rate->tx_weight)) | |
1212 | goto nla_put_failure; | |
1213 | ||
d7555984 DL |
1214 | if (devlink_rate->parent) |
1215 | if (nla_put_string(msg, DEVLINK_ATTR_RATE_PARENT_NODE_NAME, | |
1216 | devlink_rate->parent->name)) | |
1217 | goto nla_put_failure; | |
1218 | ||
4677efc4 DL |
1219 | genlmsg_end(msg, hdr); |
1220 | return 0; | |
1221 | ||
1222 | nla_put_failure: | |
1223 | genlmsg_cancel(msg, hdr); | |
1224 | return -EMSGSIZE; | |
1225 | } | |
1226 | ||
a556dded PP |
1227 | static bool |
1228 | devlink_port_fn_state_valid(enum devlink_port_fn_state state) | |
1229 | { | |
1230 | return state == DEVLINK_PORT_FN_STATE_INACTIVE || | |
1231 | state == DEVLINK_PORT_FN_STATE_ACTIVE; | |
1232 | } | |
1233 | ||
1234 | static bool | |
1235 | devlink_port_fn_opstate_valid(enum devlink_port_fn_opstate opstate) | |
1236 | { | |
1237 | return opstate == DEVLINK_PORT_FN_OPSTATE_DETACHED || | |
1238 | opstate == DEVLINK_PORT_FN_OPSTATE_ATTACHED; | |
1239 | } | |
1240 | ||
82564f6c LR |
1241 | static int devlink_port_fn_state_fill(const struct devlink_ops *ops, |
1242 | struct devlink_port *port, | |
1243 | struct sk_buff *msg, | |
1244 | struct netlink_ext_ack *extack, | |
1245 | bool *msg_updated) | |
a556dded PP |
1246 | { |
1247 | enum devlink_port_fn_opstate opstate; | |
1248 | enum devlink_port_fn_state state; | |
1249 | int err; | |
1250 | ||
1251 | if (!ops->port_fn_state_get) | |
1252 | return 0; | |
1253 | ||
82564f6c | 1254 | err = ops->port_fn_state_get(port, &state, &opstate, extack); |
a556dded PP |
1255 | if (err) { |
1256 | if (err == -EOPNOTSUPP) | |
1257 | return 0; | |
1258 | return err; | |
1259 | } | |
1260 | if (!devlink_port_fn_state_valid(state)) { | |
1261 | WARN_ON_ONCE(1); | |
1262 | NL_SET_ERR_MSG_MOD(extack, "Invalid state read from driver"); | |
1263 | return -EINVAL; | |
1264 | } | |
1265 | if (!devlink_port_fn_opstate_valid(opstate)) { | |
1266 | WARN_ON_ONCE(1); | |
1267 | NL_SET_ERR_MSG_MOD(extack, | |
1268 | "Invalid operational state read from driver"); | |
1269 | return -EINVAL; | |
1270 | } | |
1271 | if (nla_put_u8(msg, DEVLINK_PORT_FN_ATTR_STATE, state) || | |
1272 | nla_put_u8(msg, DEVLINK_PORT_FN_ATTR_OPSTATE, opstate)) | |
1273 | return -EMSGSIZE; | |
1274 | *msg_updated = true; | |
1275 | return 0; | |
1276 | } | |
1277 | ||
2a916ecc PP |
1278 | static int |
1279 | devlink_nl_port_function_attrs_put(struct sk_buff *msg, struct devlink_port *port, | |
1280 | struct netlink_ext_ack *extack) | |
1281 | { | |
2a916ecc PP |
1282 | const struct devlink_ops *ops; |
1283 | struct nlattr *function_attr; | |
1230d948 PP |
1284 | bool msg_updated = false; |
1285 | int err; | |
2a916ecc PP |
1286 | |
1287 | function_attr = nla_nest_start_noflag(msg, DEVLINK_ATTR_PORT_FUNCTION); | |
1288 | if (!function_attr) | |
1289 | return -EMSGSIZE; | |
1290 | ||
82564f6c LR |
1291 | ops = port->devlink->ops; |
1292 | err = devlink_port_fn_hw_addr_fill(ops, port, msg, extack, | |
1293 | &msg_updated); | |
a556dded PP |
1294 | if (err) |
1295 | goto out; | |
82564f6c | 1296 | err = devlink_port_fn_state_fill(ops, port, msg, extack, &msg_updated); |
2a916ecc | 1297 | out: |
1230d948 | 1298 | if (err || !msg_updated) |
2a916ecc PP |
1299 | nla_nest_cancel(msg, function_attr); |
1300 | else | |
1301 | nla_nest_end(msg, function_attr); | |
1302 | return err; | |
1303 | } | |
1304 | ||
7ca973dc | 1305 | static int devlink_nl_port_fill(struct sk_buff *msg, |
bfcd3a46 | 1306 | struct devlink_port *devlink_port, |
7ca973dc | 1307 | enum devlink_command cmd, u32 portid, u32 seq, |
31265c1e | 1308 | int flags, struct netlink_ext_ack *extack) |
bfcd3a46 | 1309 | { |
7ca973dc | 1310 | struct devlink *devlink = devlink_port->devlink; |
bfcd3a46 JP |
1311 | void *hdr; |
1312 | ||
1313 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
1314 | if (!hdr) | |
1315 | return -EMSGSIZE; | |
1316 | ||
1317 | if (devlink_nl_put_handle(msg, devlink)) | |
1318 | goto nla_put_failure; | |
1319 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, devlink_port->index)) | |
1320 | goto nla_put_failure; | |
b8f97554 | 1321 | |
0f420b6c | 1322 | spin_lock_bh(&devlink_port->type_lock); |
bfcd3a46 | 1323 | if (nla_put_u16(msg, DEVLINK_ATTR_PORT_TYPE, devlink_port->type)) |
b8f97554 | 1324 | goto nla_put_failure_type_locked; |
bfcd3a46 JP |
1325 | if (devlink_port->desired_type != DEVLINK_PORT_TYPE_NOTSET && |
1326 | nla_put_u16(msg, DEVLINK_ATTR_PORT_DESIRED_TYPE, | |
1327 | devlink_port->desired_type)) | |
b8f97554 | 1328 | goto nla_put_failure_type_locked; |
bfcd3a46 | 1329 | if (devlink_port->type == DEVLINK_PORT_TYPE_ETH) { |
31265c1e | 1330 | if (devlink_port->type_eth.netdev && |
bfcd3a46 | 1331 | (nla_put_u32(msg, DEVLINK_ATTR_PORT_NETDEV_IFINDEX, |
31265c1e | 1332 | devlink_port->type_eth.ifindex) || |
bfcd3a46 | 1333 | nla_put_string(msg, DEVLINK_ATTR_PORT_NETDEV_NAME, |
31265c1e | 1334 | devlink_port->type_eth.ifname))) |
b8f97554 | 1335 | goto nla_put_failure_type_locked; |
bfcd3a46 JP |
1336 | } |
1337 | if (devlink_port->type == DEVLINK_PORT_TYPE_IB) { | |
3830c571 | 1338 | struct ib_device *ibdev = devlink_port->type_ib.ibdev; |
bfcd3a46 JP |
1339 | |
1340 | if (ibdev && | |
1341 | nla_put_string(msg, DEVLINK_ATTR_PORT_IBDEV_NAME, | |
1342 | ibdev->name)) | |
b8f97554 | 1343 | goto nla_put_failure_type_locked; |
bfcd3a46 | 1344 | } |
0f420b6c | 1345 | spin_unlock_bh(&devlink_port->type_lock); |
b9ffcbaf | 1346 | if (devlink_nl_port_attrs_put(msg, devlink_port)) |
bfcd3a46 | 1347 | goto nla_put_failure; |
2a916ecc PP |
1348 | if (devlink_nl_port_function_attrs_put(msg, devlink_port, extack)) |
1349 | goto nla_put_failure; | |
b8375859 JP |
1350 | if (devlink_port->linecard && |
1351 | nla_put_u32(msg, DEVLINK_ATTR_LINECARD_INDEX, | |
1352 | devlink_port->linecard->index)) | |
1353 | goto nla_put_failure; | |
bfcd3a46 JP |
1354 | |
1355 | genlmsg_end(msg, hdr); | |
1356 | return 0; | |
1357 | ||
b8f97554 | 1358 | nla_put_failure_type_locked: |
0f420b6c | 1359 | spin_unlock_bh(&devlink_port->type_lock); |
bfcd3a46 JP |
1360 | nla_put_failure: |
1361 | genlmsg_cancel(msg, hdr); | |
1362 | return -EMSGSIZE; | |
1363 | } | |
1364 | ||
31265c1e JP |
1365 | static void devlink_port_notify(struct devlink_port *devlink_port, |
1366 | enum devlink_command cmd) | |
bfcd3a46 | 1367 | { |
cf530217 | 1368 | struct devlink *devlink = devlink_port->devlink; |
bfcd3a46 JP |
1369 | struct sk_buff *msg; |
1370 | int err; | |
1371 | ||
bfcd3a46 JP |
1372 | WARN_ON(cmd != DEVLINK_CMD_PORT_NEW && cmd != DEVLINK_CMD_PORT_DEL); |
1373 | ||
cf530217 LR |
1374 | if (!xa_get_mark(&devlinks, devlink->index, DEVLINK_REGISTERED)) |
1375 | return; | |
1376 | ||
bfcd3a46 JP |
1377 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
1378 | if (!msg) | |
1379 | return; | |
1380 | ||
31265c1e | 1381 | err = devlink_nl_port_fill(msg, devlink_port, cmd, 0, 0, 0, NULL); |
bfcd3a46 JP |
1382 | if (err) { |
1383 | nlmsg_free(msg); | |
1384 | return; | |
1385 | } | |
1386 | ||
cf530217 LR |
1387 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), msg, |
1388 | 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
bfcd3a46 JP |
1389 | } |
1390 | ||
4677efc4 DL |
1391 | static void devlink_rate_notify(struct devlink_rate *devlink_rate, |
1392 | enum devlink_command cmd) | |
1393 | { | |
cf530217 | 1394 | struct devlink *devlink = devlink_rate->devlink; |
4677efc4 DL |
1395 | struct sk_buff *msg; |
1396 | int err; | |
1397 | ||
7ca973dc | 1398 | WARN_ON(cmd != DEVLINK_CMD_RATE_NEW && cmd != DEVLINK_CMD_RATE_DEL); |
ef91abfb LR |
1399 | |
1400 | if (!xa_get_mark(&devlinks, devlink->index, DEVLINK_REGISTERED)) | |
1401 | return; | |
4677efc4 DL |
1402 | |
1403 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
1404 | if (!msg) | |
1405 | return; | |
1406 | ||
7ca973dc | 1407 | err = devlink_nl_rate_fill(msg, devlink_rate, cmd, 0, 0, 0, NULL); |
4677efc4 DL |
1408 | if (err) { |
1409 | nlmsg_free(msg); | |
1410 | return; | |
1411 | } | |
1412 | ||
cf530217 LR |
1413 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), msg, |
1414 | 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
4677efc4 DL |
1415 | } |
1416 | ||
1417 | static int devlink_nl_cmd_rate_get_dumpit(struct sk_buff *msg, | |
1418 | struct netlink_callback *cb) | |
1419 | { | |
1420 | struct devlink_rate *devlink_rate; | |
1421 | struct devlink *devlink; | |
1422 | int start = cb->args[0]; | |
11a861d7 | 1423 | unsigned long index; |
4677efc4 DL |
1424 | int idx = 0; |
1425 | int err = 0; | |
1426 | ||
294c4f57 | 1427 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
7715023a | 1428 | devl_lock(devlink); |
4677efc4 DL |
1429 | list_for_each_entry(devlink_rate, &devlink->rate_list, list) { |
1430 | enum devlink_command cmd = DEVLINK_CMD_RATE_NEW; | |
1431 | u32 id = NETLINK_CB(cb->skb).portid; | |
1432 | ||
1433 | if (idx < start) { | |
1434 | idx++; | |
1435 | continue; | |
1436 | } | |
7ca973dc | 1437 | err = devlink_nl_rate_fill(msg, devlink_rate, cmd, id, |
4677efc4 DL |
1438 | cb->nlh->nlmsg_seq, |
1439 | NLM_F_MULTI, NULL); | |
1440 | if (err) { | |
7715023a | 1441 | devl_unlock(devlink); |
437ebfd9 | 1442 | devlink_put(devlink); |
4677efc4 DL |
1443 | goto out; |
1444 | } | |
1445 | idx++; | |
1446 | } | |
7715023a | 1447 | devl_unlock(devlink); |
437ebfd9 | 1448 | devlink_put(devlink); |
4677efc4 DL |
1449 | } |
1450 | out: | |
4677efc4 DL |
1451 | if (err != -EMSGSIZE) |
1452 | return err; | |
1453 | ||
1454 | cb->args[0] = idx; | |
1455 | return msg->len; | |
1456 | } | |
1457 | ||
1458 | static int devlink_nl_cmd_rate_get_doit(struct sk_buff *skb, | |
1459 | struct genl_info *info) | |
1460 | { | |
1461 | struct devlink_rate *devlink_rate = info->user_ptr[1]; | |
4677efc4 DL |
1462 | struct sk_buff *msg; |
1463 | int err; | |
1464 | ||
1465 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
1466 | if (!msg) | |
1467 | return -ENOMEM; | |
1468 | ||
7ca973dc | 1469 | err = devlink_nl_rate_fill(msg, devlink_rate, DEVLINK_CMD_RATE_NEW, |
4677efc4 DL |
1470 | info->snd_portid, info->snd_seq, 0, |
1471 | info->extack); | |
1472 | if (err) { | |
1473 | nlmsg_free(msg); | |
1474 | return err; | |
1475 | } | |
1476 | ||
1477 | return genlmsg_reply(msg, info); | |
1478 | } | |
1479 | ||
d7555984 DL |
1480 | static bool |
1481 | devlink_rate_is_parent_node(struct devlink_rate *devlink_rate, | |
1482 | struct devlink_rate *parent) | |
1483 | { | |
1484 | while (parent) { | |
1485 | if (parent == devlink_rate) | |
1486 | return true; | |
1487 | parent = parent->parent; | |
1488 | } | |
1489 | return false; | |
1490 | } | |
1491 | ||
bfcd3a46 JP |
1492 | static int devlink_nl_cmd_get_doit(struct sk_buff *skb, struct genl_info *info) |
1493 | { | |
1494 | struct devlink *devlink = info->user_ptr[0]; | |
1495 | struct sk_buff *msg; | |
1496 | int err; | |
1497 | ||
1498 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
1499 | if (!msg) | |
1500 | return -ENOMEM; | |
1501 | ||
1502 | err = devlink_nl_fill(msg, devlink, DEVLINK_CMD_NEW, | |
1503 | info->snd_portid, info->snd_seq, 0); | |
1504 | if (err) { | |
1505 | nlmsg_free(msg); | |
1506 | return err; | |
1507 | } | |
1508 | ||
1509 | return genlmsg_reply(msg, info); | |
1510 | } | |
1511 | ||
1512 | static int devlink_nl_cmd_get_dumpit(struct sk_buff *msg, | |
1513 | struct netlink_callback *cb) | |
1514 | { | |
1515 | struct devlink *devlink; | |
1516 | int start = cb->args[0]; | |
11a861d7 | 1517 | unsigned long index; |
bfcd3a46 JP |
1518 | int idx = 0; |
1519 | int err; | |
1520 | ||
294c4f57 | 1521 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
bfcd3a46 JP |
1522 | if (idx < start) { |
1523 | idx++; | |
437ebfd9 | 1524 | devlink_put(devlink); |
bfcd3a46 JP |
1525 | continue; |
1526 | } | |
437ebfd9 | 1527 | |
bfcd3a46 JP |
1528 | err = devlink_nl_fill(msg, devlink, DEVLINK_CMD_NEW, |
1529 | NETLINK_CB(cb->skb).portid, | |
1530 | cb->nlh->nlmsg_seq, NLM_F_MULTI); | |
437ebfd9 | 1531 | devlink_put(devlink); |
bfcd3a46 JP |
1532 | if (err) |
1533 | goto out; | |
1534 | idx++; | |
1535 | } | |
1536 | out: | |
bfcd3a46 JP |
1537 | cb->args[0] = idx; |
1538 | return msg->len; | |
1539 | } | |
1540 | ||
1541 | static int devlink_nl_cmd_port_get_doit(struct sk_buff *skb, | |
1542 | struct genl_info *info) | |
1543 | { | |
637989b5 | 1544 | struct devlink_port *devlink_port = info->user_ptr[1]; |
bfcd3a46 JP |
1545 | struct sk_buff *msg; |
1546 | int err; | |
1547 | ||
1548 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
1549 | if (!msg) | |
1550 | return -ENOMEM; | |
1551 | ||
7ca973dc | 1552 | err = devlink_nl_port_fill(msg, devlink_port, DEVLINK_CMD_PORT_NEW, |
a829eb0d | 1553 | info->snd_portid, info->snd_seq, 0, |
31265c1e | 1554 | info->extack); |
bfcd3a46 JP |
1555 | if (err) { |
1556 | nlmsg_free(msg); | |
1557 | return err; | |
1558 | } | |
1559 | ||
1560 | return genlmsg_reply(msg, info); | |
1561 | } | |
1562 | ||
1563 | static int devlink_nl_cmd_port_get_dumpit(struct sk_buff *msg, | |
1564 | struct netlink_callback *cb) | |
1565 | { | |
1566 | struct devlink *devlink; | |
1567 | struct devlink_port *devlink_port; | |
1568 | int start = cb->args[0]; | |
11a861d7 | 1569 | unsigned long index; |
bfcd3a46 JP |
1570 | int idx = 0; |
1571 | int err; | |
1572 | ||
294c4f57 | 1573 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
7715023a | 1574 | devl_lock(devlink); |
bfcd3a46 JP |
1575 | list_for_each_entry(devlink_port, &devlink->port_list, list) { |
1576 | if (idx < start) { | |
1577 | idx++; | |
1578 | continue; | |
1579 | } | |
7ca973dc | 1580 | err = devlink_nl_port_fill(msg, devlink_port, |
bfcd3a46 JP |
1581 | DEVLINK_CMD_NEW, |
1582 | NETLINK_CB(cb->skb).portid, | |
1583 | cb->nlh->nlmsg_seq, | |
31265c1e | 1584 | NLM_F_MULTI, cb->extack); |
2406e7e5 | 1585 | if (err) { |
7715023a | 1586 | devl_unlock(devlink); |
437ebfd9 | 1587 | devlink_put(devlink); |
bfcd3a46 | 1588 | goto out; |
2406e7e5 | 1589 | } |
bfcd3a46 JP |
1590 | idx++; |
1591 | } | |
7715023a | 1592 | devl_unlock(devlink); |
437ebfd9 | 1593 | devlink_put(devlink); |
bfcd3a46 JP |
1594 | } |
1595 | out: | |
bfcd3a46 JP |
1596 | cb->args[0] = idx; |
1597 | return msg->len; | |
1598 | } | |
1599 | ||
82564f6c | 1600 | static int devlink_port_type_set(struct devlink_port *devlink_port, |
bfcd3a46 JP |
1601 | enum devlink_port_type port_type) |
1602 | ||
1603 | { | |
1604 | int err; | |
1605 | ||
2a2b6e36 | 1606 | if (!devlink_port->devlink->ops->port_type_set) |
82564f6c LR |
1607 | return -EOPNOTSUPP; |
1608 | ||
1609 | if (port_type == devlink_port->type) | |
bfcd3a46 | 1610 | return 0; |
82564f6c LR |
1611 | |
1612 | err = devlink_port->devlink->ops->port_type_set(devlink_port, | |
1613 | port_type); | |
1614 | if (err) | |
1615 | return err; | |
1616 | ||
1617 | devlink_port->desired_type = port_type; | |
1618 | devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_NEW); | |
1619 | return 0; | |
bfcd3a46 JP |
1620 | } |
1621 | ||
82564f6c LR |
1622 | static int devlink_port_function_hw_addr_set(struct devlink_port *port, |
1623 | const struct nlattr *attr, | |
1624 | struct netlink_ext_ack *extack) | |
a1e8ae90 | 1625 | { |
82564f6c | 1626 | const struct devlink_ops *ops = port->devlink->ops; |
a1e8ae90 PP |
1627 | const u8 *hw_addr; |
1628 | int hw_addr_len; | |
a1e8ae90 PP |
1629 | |
1630 | hw_addr = nla_data(attr); | |
1631 | hw_addr_len = nla_len(attr); | |
1632 | if (hw_addr_len > MAX_ADDR_LEN) { | |
1633 | NL_SET_ERR_MSG_MOD(extack, "Port function hardware address too long"); | |
1634 | return -EINVAL; | |
1635 | } | |
1636 | if (port->type == DEVLINK_PORT_TYPE_ETH) { | |
1637 | if (hw_addr_len != ETH_ALEN) { | |
1638 | NL_SET_ERR_MSG_MOD(extack, "Address must be 6 bytes for Ethernet device"); | |
1639 | return -EINVAL; | |
1640 | } | |
1641 | if (!is_unicast_ether_addr(hw_addr)) { | |
1642 | NL_SET_ERR_MSG_MOD(extack, "Non-unicast hardware address unsupported"); | |
1643 | return -EINVAL; | |
1644 | } | |
1645 | } | |
1646 | ||
a1e8ae90 PP |
1647 | if (!ops->port_function_hw_addr_set) { |
1648 | NL_SET_ERR_MSG_MOD(extack, "Port doesn't support function attributes"); | |
1649 | return -EOPNOTSUPP; | |
1650 | } | |
1651 | ||
82564f6c LR |
1652 | return ops->port_function_hw_addr_set(port, hw_addr, hw_addr_len, |
1653 | extack); | |
a1e8ae90 | 1654 | } |
a1e8ae90 | 1655 | |
82564f6c | 1656 | static int devlink_port_fn_state_set(struct devlink_port *port, |
a556dded PP |
1657 | const struct nlattr *attr, |
1658 | struct netlink_ext_ack *extack) | |
1659 | { | |
1660 | enum devlink_port_fn_state state; | |
1661 | const struct devlink_ops *ops; | |
1662 | ||
1663 | state = nla_get_u8(attr); | |
82564f6c | 1664 | ops = port->devlink->ops; |
a556dded PP |
1665 | if (!ops->port_fn_state_set) { |
1666 | NL_SET_ERR_MSG_MOD(extack, | |
1667 | "Function does not support state setting"); | |
1668 | return -EOPNOTSUPP; | |
1669 | } | |
82564f6c | 1670 | return ops->port_fn_state_set(port, state, extack); |
a1e8ae90 PP |
1671 | } |
1672 | ||
82564f6c LR |
1673 | static int devlink_port_function_set(struct devlink_port *port, |
1674 | const struct nlattr *attr, | |
1675 | struct netlink_ext_ack *extack) | |
a1e8ae90 PP |
1676 | { |
1677 | struct nlattr *tb[DEVLINK_PORT_FUNCTION_ATTR_MAX + 1]; | |
1678 | int err; | |
1679 | ||
1680 | err = nla_parse_nested(tb, DEVLINK_PORT_FUNCTION_ATTR_MAX, attr, | |
1681 | devlink_function_nl_policy, extack); | |
1682 | if (err < 0) { | |
1683 | NL_SET_ERR_MSG_MOD(extack, "Fail to parse port function attributes"); | |
1684 | return err; | |
1685 | } | |
1686 | ||
1687 | attr = tb[DEVLINK_PORT_FUNCTION_ATTR_HW_ADDR]; | |
a556dded | 1688 | if (attr) { |
82564f6c | 1689 | err = devlink_port_function_hw_addr_set(port, attr, extack); |
a556dded PP |
1690 | if (err) |
1691 | return err; | |
1692 | } | |
1693 | /* Keep this as the last function attribute set, so that when | |
1694 | * multiple port function attributes are set along with state, | |
1695 | * Those can be applied first before activating the state. | |
1696 | */ | |
1697 | attr = tb[DEVLINK_PORT_FN_ATTR_STATE]; | |
1698 | if (attr) | |
82564f6c | 1699 | err = devlink_port_fn_state_set(port, attr, extack); |
a1e8ae90 | 1700 | |
1230d948 PP |
1701 | if (!err) |
1702 | devlink_port_notify(port, DEVLINK_CMD_PORT_NEW); | |
a1e8ae90 PP |
1703 | return err; |
1704 | } | |
1705 | ||
bfcd3a46 JP |
1706 | static int devlink_nl_cmd_port_set_doit(struct sk_buff *skb, |
1707 | struct genl_info *info) | |
1708 | { | |
637989b5 | 1709 | struct devlink_port *devlink_port = info->user_ptr[1]; |
bfcd3a46 JP |
1710 | int err; |
1711 | ||
1712 | if (info->attrs[DEVLINK_ATTR_PORT_TYPE]) { | |
1713 | enum devlink_port_type port_type; | |
1714 | ||
1715 | port_type = nla_get_u16(info->attrs[DEVLINK_ATTR_PORT_TYPE]); | |
82564f6c | 1716 | err = devlink_port_type_set(devlink_port, port_type); |
bfcd3a46 JP |
1717 | if (err) |
1718 | return err; | |
1719 | } | |
a1e8ae90 PP |
1720 | |
1721 | if (info->attrs[DEVLINK_ATTR_PORT_FUNCTION]) { | |
1722 | struct nlattr *attr = info->attrs[DEVLINK_ATTR_PORT_FUNCTION]; | |
1723 | struct netlink_ext_ack *extack = info->extack; | |
1724 | ||
82564f6c | 1725 | err = devlink_port_function_set(devlink_port, attr, extack); |
a1e8ae90 PP |
1726 | if (err) |
1727 | return err; | |
1728 | } | |
1729 | ||
bfcd3a46 JP |
1730 | return 0; |
1731 | } | |
1732 | ||
bfcd3a46 JP |
1733 | static int devlink_nl_cmd_port_split_doit(struct sk_buff *skb, |
1734 | struct genl_info *info) | |
1735 | { | |
706217c1 | 1736 | struct devlink_port *devlink_port = info->user_ptr[1]; |
bfcd3a46 | 1737 | struct devlink *devlink = info->user_ptr[0]; |
bfcd3a46 JP |
1738 | u32 count; |
1739 | ||
1f7633b5 | 1740 | if (GENL_REQ_ATTR_CHECK(info, DEVLINK_ATTR_PORT_SPLIT_COUNT)) |
bfcd3a46 | 1741 | return -EINVAL; |
706217c1 JK |
1742 | if (!devlink->ops->port_split) |
1743 | return -EOPNOTSUPP; | |
bfcd3a46 | 1744 | |
bfcd3a46 | 1745 | count = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_SPLIT_COUNT]); |
82901ad1 | 1746 | |
82901ad1 DR |
1747 | if (!devlink_port->attrs.splittable) { |
1748 | /* Split ports cannot be split. */ | |
1749 | if (devlink_port->attrs.split) | |
1750 | NL_SET_ERR_MSG_MOD(info->extack, "Port cannot be split further"); | |
1751 | else | |
1752 | NL_SET_ERR_MSG_MOD(info->extack, "Port cannot be split"); | |
1753 | return -EINVAL; | |
1754 | } | |
1755 | ||
1756 | if (count < 2 || !is_power_of_2(count) || count > devlink_port->attrs.lanes) { | |
1757 | NL_SET_ERR_MSG_MOD(info->extack, "Invalid split count"); | |
1758 | return -EINVAL; | |
1759 | } | |
1760 | ||
706217c1 JK |
1761 | return devlink->ops->port_split(devlink, devlink_port, count, |
1762 | info->extack); | |
bfcd3a46 JP |
1763 | } |
1764 | ||
1765 | static int devlink_nl_cmd_port_unsplit_doit(struct sk_buff *skb, | |
1766 | struct genl_info *info) | |
1767 | { | |
706217c1 | 1768 | struct devlink_port *devlink_port = info->user_ptr[1]; |
bfcd3a46 | 1769 | struct devlink *devlink = info->user_ptr[0]; |
bfcd3a46 | 1770 | |
706217c1 JK |
1771 | if (!devlink->ops->port_unsplit) |
1772 | return -EOPNOTSUPP; | |
1773 | return devlink->ops->port_unsplit(devlink, devlink_port, info->extack); | |
bfcd3a46 JP |
1774 | } |
1775 | ||
ced92571 JP |
1776 | static int devlink_port_new_notify(struct devlink *devlink, |
1777 | unsigned int port_index, | |
1778 | struct genl_info *info) | |
cd76dcd6 PP |
1779 | { |
1780 | struct devlink_port *devlink_port; | |
1781 | struct sk_buff *msg; | |
1782 | int err; | |
1783 | ||
1784 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
1785 | if (!msg) | |
1786 | return -ENOMEM; | |
1787 | ||
f0680ef0 | 1788 | lockdep_assert_held(&devlink->lock); |
cd76dcd6 PP |
1789 | devlink_port = devlink_port_get_by_index(devlink, port_index); |
1790 | if (!devlink_port) { | |
1791 | err = -ENODEV; | |
1792 | goto out; | |
1793 | } | |
1794 | ||
7ca973dc | 1795 | err = devlink_nl_port_fill(msg, devlink_port, DEVLINK_CMD_NEW, |
31265c1e | 1796 | info->snd_portid, info->snd_seq, 0, NULL); |
cd76dcd6 PP |
1797 | if (err) |
1798 | goto out; | |
1799 | ||
a44c4511 | 1800 | return genlmsg_reply(msg, info); |
cd76dcd6 PP |
1801 | |
1802 | out: | |
cd76dcd6 PP |
1803 | nlmsg_free(msg); |
1804 | return err; | |
1805 | } | |
1806 | ||
1807 | static int devlink_nl_cmd_port_new_doit(struct sk_buff *skb, | |
1808 | struct genl_info *info) | |
1809 | { | |
1810 | struct netlink_ext_ack *extack = info->extack; | |
1811 | struct devlink_port_new_attrs new_attrs = {}; | |
1812 | struct devlink *devlink = info->user_ptr[0]; | |
1813 | unsigned int new_port_index; | |
1814 | int err; | |
1815 | ||
1816 | if (!devlink->ops->port_new || !devlink->ops->port_del) | |
1817 | return -EOPNOTSUPP; | |
1818 | ||
1819 | if (!info->attrs[DEVLINK_ATTR_PORT_FLAVOUR] || | |
1820 | !info->attrs[DEVLINK_ATTR_PORT_PCI_PF_NUMBER]) { | |
1821 | NL_SET_ERR_MSG_MOD(extack, "Port flavour or PCI PF are not specified"); | |
1822 | return -EINVAL; | |
1823 | } | |
1824 | new_attrs.flavour = nla_get_u16(info->attrs[DEVLINK_ATTR_PORT_FLAVOUR]); | |
1825 | new_attrs.pfnum = | |
1826 | nla_get_u16(info->attrs[DEVLINK_ATTR_PORT_PCI_PF_NUMBER]); | |
1827 | ||
1828 | if (info->attrs[DEVLINK_ATTR_PORT_INDEX]) { | |
1829 | /* Port index of the new port being created by driver. */ | |
1830 | new_attrs.port_index = | |
1831 | nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_INDEX]); | |
1832 | new_attrs.port_index_valid = true; | |
1833 | } | |
1834 | if (info->attrs[DEVLINK_ATTR_PORT_CONTROLLER_NUMBER]) { | |
1835 | new_attrs.controller = | |
1836 | nla_get_u16(info->attrs[DEVLINK_ATTR_PORT_CONTROLLER_NUMBER]); | |
1837 | new_attrs.controller_valid = true; | |
1838 | } | |
1839 | if (new_attrs.flavour == DEVLINK_PORT_FLAVOUR_PCI_SF && | |
1840 | info->attrs[DEVLINK_ATTR_PORT_PCI_SF_NUMBER]) { | |
1841 | new_attrs.sfnum = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_PCI_SF_NUMBER]); | |
1842 | new_attrs.sfnum_valid = true; | |
1843 | } | |
1844 | ||
1845 | err = devlink->ops->port_new(devlink, &new_attrs, extack, | |
1846 | &new_port_index); | |
1847 | if (err) | |
1848 | return err; | |
1849 | ||
ced92571 | 1850 | err = devlink_port_new_notify(devlink, new_port_index, info); |
cd76dcd6 PP |
1851 | if (err && err != -ENODEV) { |
1852 | /* Fail to send the response; destroy newly created port. */ | |
1853 | devlink->ops->port_del(devlink, new_port_index, extack); | |
1854 | } | |
1855 | return err; | |
1856 | } | |
1857 | ||
1858 | static int devlink_nl_cmd_port_del_doit(struct sk_buff *skb, | |
1859 | struct genl_info *info) | |
1860 | { | |
1861 | struct netlink_ext_ack *extack = info->extack; | |
1862 | struct devlink *devlink = info->user_ptr[0]; | |
1863 | unsigned int port_index; | |
1864 | ||
1865 | if (!devlink->ops->port_del) | |
1866 | return -EOPNOTSUPP; | |
1867 | ||
1f7633b5 | 1868 | if (GENL_REQ_ATTR_CHECK(info, DEVLINK_ATTR_PORT_INDEX)) { |
cd76dcd6 PP |
1869 | NL_SET_ERR_MSG_MOD(extack, "Port index is not specified"); |
1870 | return -EINVAL; | |
1871 | } | |
1872 | port_index = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_INDEX]); | |
1873 | ||
1874 | return devlink->ops->port_del(devlink, port_index, extack); | |
1875 | } | |
1876 | ||
d7555984 DL |
1877 | static int |
1878 | devlink_nl_rate_parent_node_set(struct devlink_rate *devlink_rate, | |
1879 | struct genl_info *info, | |
1880 | struct nlattr *nla_parent) | |
1881 | { | |
1882 | struct devlink *devlink = devlink_rate->devlink; | |
1883 | const char *parent_name = nla_data(nla_parent); | |
1884 | const struct devlink_ops *ops = devlink->ops; | |
1885 | size_t len = strlen(parent_name); | |
1886 | struct devlink_rate *parent; | |
1887 | int err = -EOPNOTSUPP; | |
1888 | ||
1889 | parent = devlink_rate->parent; | |
04d674f0 MW |
1890 | |
1891 | if (parent && !len) { | |
d7555984 DL |
1892 | if (devlink_rate_is_leaf(devlink_rate)) |
1893 | err = ops->rate_leaf_parent_set(devlink_rate, NULL, | |
1894 | devlink_rate->priv, NULL, | |
1895 | info->extack); | |
1896 | else if (devlink_rate_is_node(devlink_rate)) | |
1897 | err = ops->rate_node_parent_set(devlink_rate, NULL, | |
1898 | devlink_rate->priv, NULL, | |
1899 | info->extack); | |
1900 | if (err) | |
1901 | return err; | |
1902 | ||
1903 | refcount_dec(&parent->refcnt); | |
1904 | devlink_rate->parent = NULL; | |
04d674f0 | 1905 | } else if (len) { |
d7555984 DL |
1906 | parent = devlink_rate_node_get_by_name(devlink, parent_name); |
1907 | if (IS_ERR(parent)) | |
1908 | return -ENODEV; | |
1909 | ||
1910 | if (parent == devlink_rate) { | |
1911 | NL_SET_ERR_MSG_MOD(info->extack, "Parent to self is not allowed"); | |
1912 | return -EINVAL; | |
1913 | } | |
1914 | ||
1915 | if (devlink_rate_is_node(devlink_rate) && | |
1916 | devlink_rate_is_parent_node(devlink_rate, parent->parent)) { | |
1917 | NL_SET_ERR_MSG_MOD(info->extack, "Node is already a parent of parent node."); | |
1918 | return -EEXIST; | |
1919 | } | |
1920 | ||
1921 | if (devlink_rate_is_leaf(devlink_rate)) | |
1922 | err = ops->rate_leaf_parent_set(devlink_rate, parent, | |
1923 | devlink_rate->priv, parent->priv, | |
1924 | info->extack); | |
1925 | else if (devlink_rate_is_node(devlink_rate)) | |
1926 | err = ops->rate_node_parent_set(devlink_rate, parent, | |
1927 | devlink_rate->priv, parent->priv, | |
1928 | info->extack); | |
1929 | if (err) | |
1930 | return err; | |
1931 | ||
04d674f0 MW |
1932 | if (devlink_rate->parent) |
1933 | /* we're reassigning to other parent in this case */ | |
1934 | refcount_dec(&devlink_rate->parent->refcnt); | |
1935 | ||
d7555984 DL |
1936 | refcount_inc(&parent->refcnt); |
1937 | devlink_rate->parent = parent; | |
1938 | } | |
1939 | ||
1940 | return 0; | |
1941 | } | |
1942 | ||
1897db2e DL |
1943 | static int devlink_nl_rate_set(struct devlink_rate *devlink_rate, |
1944 | const struct devlink_ops *ops, | |
1945 | struct genl_info *info) | |
1946 | { | |
d7555984 | 1947 | struct nlattr *nla_parent, **attrs = info->attrs; |
a8ecb93e | 1948 | int err = -EOPNOTSUPP; |
cd502236 | 1949 | u32 priority; |
6e2d7e84 | 1950 | u32 weight; |
1897db2e | 1951 | u64 rate; |
1897db2e DL |
1952 | |
1953 | if (attrs[DEVLINK_ATTR_RATE_TX_SHARE]) { | |
1954 | rate = nla_get_u64(attrs[DEVLINK_ATTR_RATE_TX_SHARE]); | |
a8ecb93e DL |
1955 | if (devlink_rate_is_leaf(devlink_rate)) |
1956 | err = ops->rate_leaf_tx_share_set(devlink_rate, devlink_rate->priv, | |
1957 | rate, info->extack); | |
1958 | else if (devlink_rate_is_node(devlink_rate)) | |
1959 | err = ops->rate_node_tx_share_set(devlink_rate, devlink_rate->priv, | |
1960 | rate, info->extack); | |
1897db2e DL |
1961 | if (err) |
1962 | return err; | |
1963 | devlink_rate->tx_share = rate; | |
1964 | } | |
1965 | ||
1966 | if (attrs[DEVLINK_ATTR_RATE_TX_MAX]) { | |
1967 | rate = nla_get_u64(attrs[DEVLINK_ATTR_RATE_TX_MAX]); | |
a8ecb93e DL |
1968 | if (devlink_rate_is_leaf(devlink_rate)) |
1969 | err = ops->rate_leaf_tx_max_set(devlink_rate, devlink_rate->priv, | |
1970 | rate, info->extack); | |
1971 | else if (devlink_rate_is_node(devlink_rate)) | |
1972 | err = ops->rate_node_tx_max_set(devlink_rate, devlink_rate->priv, | |
1973 | rate, info->extack); | |
1897db2e DL |
1974 | if (err) |
1975 | return err; | |
1976 | devlink_rate->tx_max = rate; | |
1977 | } | |
1978 | ||
cd502236 MW |
1979 | if (attrs[DEVLINK_ATTR_RATE_TX_PRIORITY]) { |
1980 | priority = nla_get_u32(attrs[DEVLINK_ATTR_RATE_TX_PRIORITY]); | |
1981 | if (devlink_rate_is_leaf(devlink_rate)) | |
1982 | err = ops->rate_leaf_tx_priority_set(devlink_rate, devlink_rate->priv, | |
1983 | priority, info->extack); | |
1984 | else if (devlink_rate_is_node(devlink_rate)) | |
1985 | err = ops->rate_node_tx_priority_set(devlink_rate, devlink_rate->priv, | |
1986 | priority, info->extack); | |
1987 | ||
1988 | if (err) | |
1989 | return err; | |
1990 | devlink_rate->tx_priority = priority; | |
1991 | } | |
1992 | ||
6e2d7e84 MW |
1993 | if (attrs[DEVLINK_ATTR_RATE_TX_WEIGHT]) { |
1994 | weight = nla_get_u32(attrs[DEVLINK_ATTR_RATE_TX_WEIGHT]); | |
1995 | if (devlink_rate_is_leaf(devlink_rate)) | |
1996 | err = ops->rate_leaf_tx_weight_set(devlink_rate, devlink_rate->priv, | |
1997 | weight, info->extack); | |
1998 | else if (devlink_rate_is_node(devlink_rate)) | |
1999 | err = ops->rate_node_tx_weight_set(devlink_rate, devlink_rate->priv, | |
2000 | weight, info->extack); | |
2001 | ||
2002 | if (err) | |
2003 | return err; | |
2004 | devlink_rate->tx_weight = weight; | |
2005 | } | |
2006 | ||
d7555984 DL |
2007 | nla_parent = attrs[DEVLINK_ATTR_RATE_PARENT_NODE_NAME]; |
2008 | if (nla_parent) { | |
2009 | err = devlink_nl_rate_parent_node_set(devlink_rate, info, | |
2010 | nla_parent); | |
2011 | if (err) | |
2012 | return err; | |
2013 | } | |
2014 | ||
1897db2e DL |
2015 | return 0; |
2016 | } | |
2017 | ||
2018 | static bool devlink_rate_set_ops_supported(const struct devlink_ops *ops, | |
2019 | struct genl_info *info, | |
2020 | enum devlink_rate_type type) | |
2021 | { | |
2022 | struct nlattr **attrs = info->attrs; | |
2023 | ||
2024 | if (type == DEVLINK_RATE_TYPE_LEAF) { | |
2025 | if (attrs[DEVLINK_ATTR_RATE_TX_SHARE] && !ops->rate_leaf_tx_share_set) { | |
2026 | NL_SET_ERR_MSG_MOD(info->extack, "TX share set isn't supported for the leafs"); | |
2027 | return false; | |
2028 | } | |
2029 | if (attrs[DEVLINK_ATTR_RATE_TX_MAX] && !ops->rate_leaf_tx_max_set) { | |
2030 | NL_SET_ERR_MSG_MOD(info->extack, "TX max set isn't supported for the leafs"); | |
2031 | return false; | |
2032 | } | |
d7555984 DL |
2033 | if (attrs[DEVLINK_ATTR_RATE_PARENT_NODE_NAME] && |
2034 | !ops->rate_leaf_parent_set) { | |
2035 | NL_SET_ERR_MSG_MOD(info->extack, "Parent set isn't supported for the leafs"); | |
2036 | return false; | |
2037 | } | |
cd502236 MW |
2038 | if (attrs[DEVLINK_ATTR_RATE_TX_PRIORITY] && !ops->rate_leaf_tx_priority_set) { |
2039 | NL_SET_ERR_MSG_ATTR(info->extack, | |
2040 | attrs[DEVLINK_ATTR_RATE_TX_PRIORITY], | |
2041 | "TX priority set isn't supported for the leafs"); | |
2042 | return false; | |
2043 | } | |
6e2d7e84 MW |
2044 | if (attrs[DEVLINK_ATTR_RATE_TX_WEIGHT] && !ops->rate_leaf_tx_weight_set) { |
2045 | NL_SET_ERR_MSG_ATTR(info->extack, | |
2046 | attrs[DEVLINK_ATTR_RATE_TX_WEIGHT], | |
2047 | "TX weight set isn't supported for the leafs"); | |
2048 | return false; | |
2049 | } | |
a8ecb93e DL |
2050 | } else if (type == DEVLINK_RATE_TYPE_NODE) { |
2051 | if (attrs[DEVLINK_ATTR_RATE_TX_SHARE] && !ops->rate_node_tx_share_set) { | |
2052 | NL_SET_ERR_MSG_MOD(info->extack, "TX share set isn't supported for the nodes"); | |
2053 | return false; | |
2054 | } | |
2055 | if (attrs[DEVLINK_ATTR_RATE_TX_MAX] && !ops->rate_node_tx_max_set) { | |
2056 | NL_SET_ERR_MSG_MOD(info->extack, "TX max set isn't supported for the nodes"); | |
2057 | return false; | |
2058 | } | |
d7555984 DL |
2059 | if (attrs[DEVLINK_ATTR_RATE_PARENT_NODE_NAME] && |
2060 | !ops->rate_node_parent_set) { | |
2061 | NL_SET_ERR_MSG_MOD(info->extack, "Parent set isn't supported for the nodes"); | |
2062 | return false; | |
2063 | } | |
cd502236 MW |
2064 | if (attrs[DEVLINK_ATTR_RATE_TX_PRIORITY] && !ops->rate_node_tx_priority_set) { |
2065 | NL_SET_ERR_MSG_ATTR(info->extack, | |
2066 | attrs[DEVLINK_ATTR_RATE_TX_PRIORITY], | |
2067 | "TX priority set isn't supported for the nodes"); | |
2068 | return false; | |
2069 | } | |
6e2d7e84 MW |
2070 | if (attrs[DEVLINK_ATTR_RATE_TX_WEIGHT] && !ops->rate_node_tx_weight_set) { |
2071 | NL_SET_ERR_MSG_ATTR(info->extack, | |
2072 | attrs[DEVLINK_ATTR_RATE_TX_WEIGHT], | |
2073 | "TX weight set isn't supported for the nodes"); | |
2074 | return false; | |
2075 | } | |
1897db2e | 2076 | } else { |
711d1dee | 2077 | WARN(1, "Unknown type of rate object"); |
1897db2e DL |
2078 | return false; |
2079 | } | |
2080 | ||
2081 | return true; | |
2082 | } | |
2083 | ||
2084 | static int devlink_nl_cmd_rate_set_doit(struct sk_buff *skb, | |
2085 | struct genl_info *info) | |
2086 | { | |
2087 | struct devlink_rate *devlink_rate = info->user_ptr[1]; | |
2088 | struct devlink *devlink = devlink_rate->devlink; | |
2089 | const struct devlink_ops *ops = devlink->ops; | |
2090 | int err; | |
2091 | ||
2092 | if (!ops || !devlink_rate_set_ops_supported(ops, info, devlink_rate->type)) | |
2093 | return -EOPNOTSUPP; | |
2094 | ||
2095 | err = devlink_nl_rate_set(devlink_rate, ops, info); | |
2096 | ||
2097 | if (!err) | |
2098 | devlink_rate_notify(devlink_rate, DEVLINK_CMD_RATE_NEW); | |
2099 | return err; | |
2100 | } | |
2101 | ||
a8ecb93e DL |
2102 | static int devlink_nl_cmd_rate_new_doit(struct sk_buff *skb, |
2103 | struct genl_info *info) | |
2104 | { | |
2105 | struct devlink *devlink = info->user_ptr[0]; | |
2106 | struct devlink_rate *rate_node; | |
2107 | const struct devlink_ops *ops; | |
2108 | int err; | |
2109 | ||
2110 | ops = devlink->ops; | |
2111 | if (!ops || !ops->rate_node_new || !ops->rate_node_del) { | |
2112 | NL_SET_ERR_MSG_MOD(info->extack, "Rate nodes aren't supported"); | |
2113 | return -EOPNOTSUPP; | |
2114 | } | |
2115 | ||
2116 | if (!devlink_rate_set_ops_supported(ops, info, DEVLINK_RATE_TYPE_NODE)) | |
2117 | return -EOPNOTSUPP; | |
2118 | ||
2119 | rate_node = devlink_rate_node_get_from_attrs(devlink, info->attrs); | |
2120 | if (!IS_ERR(rate_node)) | |
2121 | return -EEXIST; | |
2122 | else if (rate_node == ERR_PTR(-EINVAL)) | |
2123 | return -EINVAL; | |
2124 | ||
2125 | rate_node = kzalloc(sizeof(*rate_node), GFP_KERNEL); | |
2126 | if (!rate_node) | |
2127 | return -ENOMEM; | |
2128 | ||
2129 | rate_node->devlink = devlink; | |
2130 | rate_node->type = DEVLINK_RATE_TYPE_NODE; | |
2131 | rate_node->name = nla_strdup(info->attrs[DEVLINK_ATTR_RATE_NODE_NAME], GFP_KERNEL); | |
2132 | if (!rate_node->name) { | |
2133 | err = -ENOMEM; | |
2134 | goto err_strdup; | |
2135 | } | |
2136 | ||
2137 | err = ops->rate_node_new(rate_node, &rate_node->priv, info->extack); | |
2138 | if (err) | |
2139 | goto err_node_new; | |
2140 | ||
2141 | err = devlink_nl_rate_set(rate_node, ops, info); | |
2142 | if (err) | |
2143 | goto err_rate_set; | |
2144 | ||
d7555984 | 2145 | refcount_set(&rate_node->refcnt, 1); |
a8ecb93e DL |
2146 | list_add(&rate_node->list, &devlink->rate_list); |
2147 | devlink_rate_notify(rate_node, DEVLINK_CMD_RATE_NEW); | |
2148 | return 0; | |
2149 | ||
2150 | err_rate_set: | |
2151 | ops->rate_node_del(rate_node, rate_node->priv, info->extack); | |
2152 | err_node_new: | |
2153 | kfree(rate_node->name); | |
2154 | err_strdup: | |
2155 | kfree(rate_node); | |
2156 | return err; | |
2157 | } | |
2158 | ||
2159 | static int devlink_nl_cmd_rate_del_doit(struct sk_buff *skb, | |
2160 | struct genl_info *info) | |
2161 | { | |
2162 | struct devlink_rate *rate_node = info->user_ptr[1]; | |
2163 | struct devlink *devlink = rate_node->devlink; | |
2164 | const struct devlink_ops *ops = devlink->ops; | |
2165 | int err; | |
2166 | ||
d7555984 DL |
2167 | if (refcount_read(&rate_node->refcnt) > 1) { |
2168 | NL_SET_ERR_MSG_MOD(info->extack, "Node has children. Cannot delete node."); | |
2169 | return -EBUSY; | |
2170 | } | |
2171 | ||
a8ecb93e DL |
2172 | devlink_rate_notify(rate_node, DEVLINK_CMD_RATE_DEL); |
2173 | err = ops->rate_node_del(rate_node, rate_node->priv, info->extack); | |
d7555984 DL |
2174 | if (rate_node->parent) |
2175 | refcount_dec(&rate_node->parent->refcnt); | |
a8ecb93e DL |
2176 | list_del(&rate_node->list); |
2177 | kfree(rate_node->name); | |
2178 | kfree(rate_node); | |
2179 | return err; | |
2180 | } | |
2181 | ||
fcdc8ce2 JP |
2182 | struct devlink_linecard_type { |
2183 | const char *type; | |
2184 | const void *priv; | |
2185 | }; | |
2186 | ||
c246f9b5 JP |
2187 | static int devlink_nl_linecard_fill(struct sk_buff *msg, |
2188 | struct devlink *devlink, | |
2189 | struct devlink_linecard *linecard, | |
2190 | enum devlink_command cmd, u32 portid, | |
2191 | u32 seq, int flags, | |
2192 | struct netlink_ext_ack *extack) | |
2193 | { | |
fcdc8ce2 JP |
2194 | struct devlink_linecard_type *linecard_type; |
2195 | struct nlattr *attr; | |
c246f9b5 | 2196 | void *hdr; |
fcdc8ce2 | 2197 | int i; |
c246f9b5 JP |
2198 | |
2199 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
2200 | if (!hdr) | |
2201 | return -EMSGSIZE; | |
2202 | ||
2203 | if (devlink_nl_put_handle(msg, devlink)) | |
2204 | goto nla_put_failure; | |
2205 | if (nla_put_u32(msg, DEVLINK_ATTR_LINECARD_INDEX, linecard->index)) | |
2206 | goto nla_put_failure; | |
fcdc8ce2 JP |
2207 | if (nla_put_u8(msg, DEVLINK_ATTR_LINECARD_STATE, linecard->state)) |
2208 | goto nla_put_failure; | |
2209 | if (linecard->type && | |
2210 | nla_put_string(msg, DEVLINK_ATTR_LINECARD_TYPE, linecard->type)) | |
2211 | goto nla_put_failure; | |
2212 | ||
2213 | if (linecard->types_count) { | |
2214 | attr = nla_nest_start(msg, | |
2215 | DEVLINK_ATTR_LINECARD_SUPPORTED_TYPES); | |
2216 | if (!attr) | |
2217 | goto nla_put_failure; | |
2218 | for (i = 0; i < linecard->types_count; i++) { | |
2219 | linecard_type = &linecard->types[i]; | |
2220 | if (nla_put_string(msg, DEVLINK_ATTR_LINECARD_TYPE, | |
2221 | linecard_type->type)) { | |
2222 | nla_nest_cancel(msg, attr); | |
2223 | goto nla_put_failure; | |
2224 | } | |
2225 | } | |
2226 | nla_nest_end(msg, attr); | |
2227 | } | |
c246f9b5 | 2228 | |
7b2d9a1a JP |
2229 | if (linecard->nested_devlink && |
2230 | devlink_nl_put_nested_handle(msg, linecard->nested_devlink)) | |
2231 | goto nla_put_failure; | |
2232 | ||
c246f9b5 JP |
2233 | genlmsg_end(msg, hdr); |
2234 | return 0; | |
2235 | ||
2236 | nla_put_failure: | |
2237 | genlmsg_cancel(msg, hdr); | |
2238 | return -EMSGSIZE; | |
2239 | } | |
2240 | ||
2241 | static void devlink_linecard_notify(struct devlink_linecard *linecard, | |
2242 | enum devlink_command cmd) | |
2243 | { | |
2244 | struct devlink *devlink = linecard->devlink; | |
2245 | struct sk_buff *msg; | |
2246 | int err; | |
2247 | ||
2248 | WARN_ON(cmd != DEVLINK_CMD_LINECARD_NEW && | |
2249 | cmd != DEVLINK_CMD_LINECARD_DEL); | |
2250 | ||
2251 | if (!xa_get_mark(&devlinks, devlink->index, DEVLINK_REGISTERED)) | |
2252 | return; | |
2253 | ||
2254 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
2255 | if (!msg) | |
2256 | return; | |
2257 | ||
2258 | err = devlink_nl_linecard_fill(msg, devlink, linecard, cmd, 0, 0, 0, | |
2259 | NULL); | |
2260 | if (err) { | |
2261 | nlmsg_free(msg); | |
2262 | return; | |
2263 | } | |
2264 | ||
2265 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), | |
2266 | msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
2267 | } | |
2268 | ||
2269 | static int devlink_nl_cmd_linecard_get_doit(struct sk_buff *skb, | |
2270 | struct genl_info *info) | |
2271 | { | |
2272 | struct devlink_linecard *linecard = info->user_ptr[1]; | |
2273 | struct devlink *devlink = linecard->devlink; | |
2274 | struct sk_buff *msg; | |
2275 | int err; | |
2276 | ||
2277 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
2278 | if (!msg) | |
2279 | return -ENOMEM; | |
2280 | ||
fcdc8ce2 | 2281 | mutex_lock(&linecard->state_lock); |
c246f9b5 JP |
2282 | err = devlink_nl_linecard_fill(msg, devlink, linecard, |
2283 | DEVLINK_CMD_LINECARD_NEW, | |
2284 | info->snd_portid, info->snd_seq, 0, | |
2285 | info->extack); | |
fcdc8ce2 | 2286 | mutex_unlock(&linecard->state_lock); |
c246f9b5 JP |
2287 | if (err) { |
2288 | nlmsg_free(msg); | |
2289 | return err; | |
2290 | } | |
2291 | ||
2292 | return genlmsg_reply(msg, info); | |
2293 | } | |
2294 | ||
2295 | static int devlink_nl_cmd_linecard_get_dumpit(struct sk_buff *msg, | |
2296 | struct netlink_callback *cb) | |
2297 | { | |
2298 | struct devlink_linecard *linecard; | |
2299 | struct devlink *devlink; | |
2300 | int start = cb->args[0]; | |
2301 | unsigned long index; | |
2302 | int idx = 0; | |
2303 | int err; | |
2304 | ||
294c4f57 | 2305 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
c246f9b5 JP |
2306 | mutex_lock(&devlink->linecards_lock); |
2307 | list_for_each_entry(linecard, &devlink->linecard_list, list) { | |
2308 | if (idx < start) { | |
2309 | idx++; | |
2310 | continue; | |
2311 | } | |
fcdc8ce2 | 2312 | mutex_lock(&linecard->state_lock); |
c246f9b5 JP |
2313 | err = devlink_nl_linecard_fill(msg, devlink, linecard, |
2314 | DEVLINK_CMD_LINECARD_NEW, | |
2315 | NETLINK_CB(cb->skb).portid, | |
2316 | cb->nlh->nlmsg_seq, | |
2317 | NLM_F_MULTI, | |
2318 | cb->extack); | |
fcdc8ce2 | 2319 | mutex_unlock(&linecard->state_lock); |
c246f9b5 JP |
2320 | if (err) { |
2321 | mutex_unlock(&devlink->linecards_lock); | |
2322 | devlink_put(devlink); | |
2323 | goto out; | |
2324 | } | |
2325 | idx++; | |
2326 | } | |
2327 | mutex_unlock(&devlink->linecards_lock); | |
c246f9b5 JP |
2328 | devlink_put(devlink); |
2329 | } | |
2330 | out: | |
c246f9b5 JP |
2331 | cb->args[0] = idx; |
2332 | return msg->len; | |
2333 | } | |
2334 | ||
fcdc8ce2 JP |
2335 | static struct devlink_linecard_type * |
2336 | devlink_linecard_type_lookup(struct devlink_linecard *linecard, | |
2337 | const char *type) | |
2338 | { | |
2339 | struct devlink_linecard_type *linecard_type; | |
2340 | int i; | |
2341 | ||
2342 | for (i = 0; i < linecard->types_count; i++) { | |
2343 | linecard_type = &linecard->types[i]; | |
2344 | if (!strcmp(type, linecard_type->type)) | |
2345 | return linecard_type; | |
2346 | } | |
2347 | return NULL; | |
2348 | } | |
2349 | ||
2350 | static int devlink_linecard_type_set(struct devlink_linecard *linecard, | |
2351 | const char *type, | |
2352 | struct netlink_ext_ack *extack) | |
2353 | { | |
2354 | const struct devlink_linecard_ops *ops = linecard->ops; | |
2355 | struct devlink_linecard_type *linecard_type; | |
2356 | int err; | |
2357 | ||
2358 | mutex_lock(&linecard->state_lock); | |
2359 | if (linecard->state == DEVLINK_LINECARD_STATE_PROVISIONING) { | |
2360 | NL_SET_ERR_MSG_MOD(extack, "Line card is currently being provisioned"); | |
2361 | err = -EBUSY; | |
2362 | goto out; | |
2363 | } | |
2364 | if (linecard->state == DEVLINK_LINECARD_STATE_UNPROVISIONING) { | |
2365 | NL_SET_ERR_MSG_MOD(extack, "Line card is currently being unprovisioned"); | |
2366 | err = -EBUSY; | |
2367 | goto out; | |
2368 | } | |
2369 | ||
2370 | linecard_type = devlink_linecard_type_lookup(linecard, type); | |
2371 | if (!linecard_type) { | |
2372 | NL_SET_ERR_MSG_MOD(extack, "Unsupported line card type provided"); | |
2373 | err = -EINVAL; | |
2374 | goto out; | |
2375 | } | |
2376 | ||
2377 | if (linecard->state != DEVLINK_LINECARD_STATE_UNPROVISIONED && | |
2378 | linecard->state != DEVLINK_LINECARD_STATE_PROVISIONING_FAILED) { | |
2379 | NL_SET_ERR_MSG_MOD(extack, "Line card already provisioned"); | |
2380 | err = -EBUSY; | |
2381 | /* Check if the line card is provisioned in the same | |
2382 | * way the user asks. In case it is, make the operation | |
2383 | * to return success. | |
2384 | */ | |
2385 | if (ops->same_provision && | |
2386 | ops->same_provision(linecard, linecard->priv, | |
2387 | linecard_type->type, | |
2388 | linecard_type->priv)) | |
2389 | err = 0; | |
2390 | goto out; | |
2391 | } | |
2392 | ||
2393 | linecard->state = DEVLINK_LINECARD_STATE_PROVISIONING; | |
2394 | linecard->type = linecard_type->type; | |
2395 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
2396 | mutex_unlock(&linecard->state_lock); | |
2397 | err = ops->provision(linecard, linecard->priv, linecard_type->type, | |
2398 | linecard_type->priv, extack); | |
2399 | if (err) { | |
2400 | /* Provisioning failed. Assume the linecard is unprovisioned | |
2401 | * for future operations. | |
2402 | */ | |
2403 | mutex_lock(&linecard->state_lock); | |
2404 | linecard->state = DEVLINK_LINECARD_STATE_UNPROVISIONED; | |
2405 | linecard->type = NULL; | |
2406 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
2407 | mutex_unlock(&linecard->state_lock); | |
2408 | } | |
2409 | return err; | |
2410 | ||
2411 | out: | |
2412 | mutex_unlock(&linecard->state_lock); | |
2413 | return err; | |
2414 | } | |
2415 | ||
2416 | static int devlink_linecard_type_unset(struct devlink_linecard *linecard, | |
2417 | struct netlink_ext_ack *extack) | |
2418 | { | |
2419 | int err; | |
2420 | ||
2421 | mutex_lock(&linecard->state_lock); | |
2422 | if (linecard->state == DEVLINK_LINECARD_STATE_PROVISIONING) { | |
2423 | NL_SET_ERR_MSG_MOD(extack, "Line card is currently being provisioned"); | |
2424 | err = -EBUSY; | |
2425 | goto out; | |
2426 | } | |
2427 | if (linecard->state == DEVLINK_LINECARD_STATE_UNPROVISIONING) { | |
2428 | NL_SET_ERR_MSG_MOD(extack, "Line card is currently being unprovisioned"); | |
2429 | err = -EBUSY; | |
2430 | goto out; | |
2431 | } | |
2432 | if (linecard->state == DEVLINK_LINECARD_STATE_PROVISIONING_FAILED) { | |
2433 | linecard->state = DEVLINK_LINECARD_STATE_UNPROVISIONED; | |
2434 | linecard->type = NULL; | |
2435 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
2436 | err = 0; | |
2437 | goto out; | |
2438 | } | |
2439 | ||
2440 | if (linecard->state == DEVLINK_LINECARD_STATE_UNPROVISIONED) { | |
2441 | NL_SET_ERR_MSG_MOD(extack, "Line card is not provisioned"); | |
2442 | err = 0; | |
2443 | goto out; | |
2444 | } | |
2445 | linecard->state = DEVLINK_LINECARD_STATE_UNPROVISIONING; | |
2446 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
2447 | mutex_unlock(&linecard->state_lock); | |
2448 | err = linecard->ops->unprovision(linecard, linecard->priv, | |
2449 | extack); | |
2450 | if (err) { | |
2451 | /* Unprovisioning failed. Assume the linecard is unprovisioned | |
2452 | * for future operations. | |
2453 | */ | |
2454 | mutex_lock(&linecard->state_lock); | |
2455 | linecard->state = DEVLINK_LINECARD_STATE_UNPROVISIONED; | |
2456 | linecard->type = NULL; | |
2457 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
2458 | mutex_unlock(&linecard->state_lock); | |
2459 | } | |
2460 | return err; | |
2461 | ||
2462 | out: | |
2463 | mutex_unlock(&linecard->state_lock); | |
2464 | return err; | |
2465 | } | |
2466 | ||
2467 | static int devlink_nl_cmd_linecard_set_doit(struct sk_buff *skb, | |
2468 | struct genl_info *info) | |
2469 | { | |
2470 | struct devlink_linecard *linecard = info->user_ptr[1]; | |
2471 | struct netlink_ext_ack *extack = info->extack; | |
2472 | int err; | |
2473 | ||
2474 | if (info->attrs[DEVLINK_ATTR_LINECARD_TYPE]) { | |
2475 | const char *type; | |
2476 | ||
2477 | type = nla_data(info->attrs[DEVLINK_ATTR_LINECARD_TYPE]); | |
2478 | if (strcmp(type, "")) { | |
2479 | err = devlink_linecard_type_set(linecard, type, extack); | |
2480 | if (err) | |
2481 | return err; | |
2482 | } else { | |
2483 | err = devlink_linecard_type_unset(linecard, extack); | |
2484 | if (err) | |
2485 | return err; | |
2486 | } | |
2487 | } | |
2488 | ||
2489 | return 0; | |
2490 | } | |
2491 | ||
bf797471 JP |
2492 | static int devlink_nl_sb_fill(struct sk_buff *msg, struct devlink *devlink, |
2493 | struct devlink_sb *devlink_sb, | |
2494 | enum devlink_command cmd, u32 portid, | |
2495 | u32 seq, int flags) | |
2496 | { | |
2497 | void *hdr; | |
2498 | ||
2499 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
2500 | if (!hdr) | |
2501 | return -EMSGSIZE; | |
2502 | ||
2503 | if (devlink_nl_put_handle(msg, devlink)) | |
2504 | goto nla_put_failure; | |
2505 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_INDEX, devlink_sb->index)) | |
2506 | goto nla_put_failure; | |
2507 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_SIZE, devlink_sb->size)) | |
2508 | goto nla_put_failure; | |
2509 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_INGRESS_POOL_COUNT, | |
2510 | devlink_sb->ingress_pools_count)) | |
2511 | goto nla_put_failure; | |
2512 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_EGRESS_POOL_COUNT, | |
2513 | devlink_sb->egress_pools_count)) | |
2514 | goto nla_put_failure; | |
2515 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_INGRESS_TC_COUNT, | |
2516 | devlink_sb->ingress_tc_count)) | |
2517 | goto nla_put_failure; | |
2518 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_EGRESS_TC_COUNT, | |
2519 | devlink_sb->egress_tc_count)) | |
2520 | goto nla_put_failure; | |
2521 | ||
2522 | genlmsg_end(msg, hdr); | |
2523 | return 0; | |
2524 | ||
2525 | nla_put_failure: | |
2526 | genlmsg_cancel(msg, hdr); | |
2527 | return -EMSGSIZE; | |
2528 | } | |
2529 | ||
2530 | static int devlink_nl_cmd_sb_get_doit(struct sk_buff *skb, | |
2531 | struct genl_info *info) | |
2532 | { | |
2533 | struct devlink *devlink = info->user_ptr[0]; | |
637989b5 | 2534 | struct devlink_sb *devlink_sb; |
bf797471 JP |
2535 | struct sk_buff *msg; |
2536 | int err; | |
2537 | ||
637989b5 PP |
2538 | devlink_sb = devlink_sb_get_from_info(devlink, info); |
2539 | if (IS_ERR(devlink_sb)) | |
2540 | return PTR_ERR(devlink_sb); | |
2541 | ||
bf797471 JP |
2542 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
2543 | if (!msg) | |
2544 | return -ENOMEM; | |
2545 | ||
2546 | err = devlink_nl_sb_fill(msg, devlink, devlink_sb, | |
2547 | DEVLINK_CMD_SB_NEW, | |
2548 | info->snd_portid, info->snd_seq, 0); | |
2549 | if (err) { | |
2550 | nlmsg_free(msg); | |
2551 | return err; | |
2552 | } | |
2553 | ||
2554 | return genlmsg_reply(msg, info); | |
2555 | } | |
2556 | ||
2557 | static int devlink_nl_cmd_sb_get_dumpit(struct sk_buff *msg, | |
2558 | struct netlink_callback *cb) | |
2559 | { | |
2560 | struct devlink *devlink; | |
2561 | struct devlink_sb *devlink_sb; | |
2562 | int start = cb->args[0]; | |
11a861d7 | 2563 | unsigned long index; |
bf797471 JP |
2564 | int idx = 0; |
2565 | int err; | |
2566 | ||
294c4f57 | 2567 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
7715023a | 2568 | devl_lock(devlink); |
bf797471 JP |
2569 | list_for_each_entry(devlink_sb, &devlink->sb_list, list) { |
2570 | if (idx < start) { | |
2571 | idx++; | |
2572 | continue; | |
2573 | } | |
2574 | err = devlink_nl_sb_fill(msg, devlink, devlink_sb, | |
2575 | DEVLINK_CMD_SB_NEW, | |
2576 | NETLINK_CB(cb->skb).portid, | |
2577 | cb->nlh->nlmsg_seq, | |
2578 | NLM_F_MULTI); | |
2406e7e5 | 2579 | if (err) { |
7715023a | 2580 | devl_unlock(devlink); |
437ebfd9 | 2581 | devlink_put(devlink); |
bf797471 | 2582 | goto out; |
2406e7e5 | 2583 | } |
bf797471 JP |
2584 | idx++; |
2585 | } | |
7715023a | 2586 | devl_unlock(devlink); |
437ebfd9 | 2587 | devlink_put(devlink); |
bf797471 JP |
2588 | } |
2589 | out: | |
bf797471 JP |
2590 | cb->args[0] = idx; |
2591 | return msg->len; | |
2592 | } | |
2593 | ||
2594 | static int devlink_nl_sb_pool_fill(struct sk_buff *msg, struct devlink *devlink, | |
2595 | struct devlink_sb *devlink_sb, | |
2596 | u16 pool_index, enum devlink_command cmd, | |
2597 | u32 portid, u32 seq, int flags) | |
2598 | { | |
2599 | struct devlink_sb_pool_info pool_info; | |
2600 | void *hdr; | |
2601 | int err; | |
2602 | ||
2603 | err = devlink->ops->sb_pool_get(devlink, devlink_sb->index, | |
2604 | pool_index, &pool_info); | |
2605 | if (err) | |
2606 | return err; | |
2607 | ||
2608 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
2609 | if (!hdr) | |
2610 | return -EMSGSIZE; | |
2611 | ||
2612 | if (devlink_nl_put_handle(msg, devlink)) | |
2613 | goto nla_put_failure; | |
2614 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_INDEX, devlink_sb->index)) | |
2615 | goto nla_put_failure; | |
2616 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_POOL_INDEX, pool_index)) | |
2617 | goto nla_put_failure; | |
2618 | if (nla_put_u8(msg, DEVLINK_ATTR_SB_POOL_TYPE, pool_info.pool_type)) | |
2619 | goto nla_put_failure; | |
2620 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_POOL_SIZE, pool_info.size)) | |
2621 | goto nla_put_failure; | |
2622 | if (nla_put_u8(msg, DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE, | |
2623 | pool_info.threshold_type)) | |
2624 | goto nla_put_failure; | |
bff5731d JK |
2625 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_POOL_CELL_SIZE, |
2626 | pool_info.cell_size)) | |
2627 | goto nla_put_failure; | |
bf797471 JP |
2628 | |
2629 | genlmsg_end(msg, hdr); | |
2630 | return 0; | |
2631 | ||
2632 | nla_put_failure: | |
2633 | genlmsg_cancel(msg, hdr); | |
2634 | return -EMSGSIZE; | |
2635 | } | |
2636 | ||
2637 | static int devlink_nl_cmd_sb_pool_get_doit(struct sk_buff *skb, | |
2638 | struct genl_info *info) | |
2639 | { | |
2640 | struct devlink *devlink = info->user_ptr[0]; | |
637989b5 | 2641 | struct devlink_sb *devlink_sb; |
bf797471 JP |
2642 | struct sk_buff *msg; |
2643 | u16 pool_index; | |
2644 | int err; | |
2645 | ||
637989b5 PP |
2646 | devlink_sb = devlink_sb_get_from_info(devlink, info); |
2647 | if (IS_ERR(devlink_sb)) | |
2648 | return PTR_ERR(devlink_sb); | |
2649 | ||
bf797471 JP |
2650 | err = devlink_sb_pool_index_get_from_info(devlink_sb, info, |
2651 | &pool_index); | |
2652 | if (err) | |
2653 | return err; | |
2654 | ||
be6fe1d8 | 2655 | if (!devlink->ops->sb_pool_get) |
bf797471 JP |
2656 | return -EOPNOTSUPP; |
2657 | ||
2658 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
2659 | if (!msg) | |
2660 | return -ENOMEM; | |
2661 | ||
2662 | err = devlink_nl_sb_pool_fill(msg, devlink, devlink_sb, pool_index, | |
2663 | DEVLINK_CMD_SB_POOL_NEW, | |
2664 | info->snd_portid, info->snd_seq, 0); | |
2665 | if (err) { | |
2666 | nlmsg_free(msg); | |
2667 | return err; | |
2668 | } | |
2669 | ||
2670 | return genlmsg_reply(msg, info); | |
2671 | } | |
2672 | ||
2673 | static int __sb_pool_get_dumpit(struct sk_buff *msg, int start, int *p_idx, | |
2674 | struct devlink *devlink, | |
2675 | struct devlink_sb *devlink_sb, | |
2676 | u32 portid, u32 seq) | |
2677 | { | |
2678 | u16 pool_count = devlink_sb_pool_count(devlink_sb); | |
2679 | u16 pool_index; | |
2680 | int err; | |
2681 | ||
2682 | for (pool_index = 0; pool_index < pool_count; pool_index++) { | |
2683 | if (*p_idx < start) { | |
2684 | (*p_idx)++; | |
2685 | continue; | |
2686 | } | |
2687 | err = devlink_nl_sb_pool_fill(msg, devlink, | |
2688 | devlink_sb, | |
2689 | pool_index, | |
2690 | DEVLINK_CMD_SB_POOL_NEW, | |
2691 | portid, seq, NLM_F_MULTI); | |
2692 | if (err) | |
2693 | return err; | |
2694 | (*p_idx)++; | |
2695 | } | |
2696 | return 0; | |
2697 | } | |
2698 | ||
2699 | static int devlink_nl_cmd_sb_pool_get_dumpit(struct sk_buff *msg, | |
2700 | struct netlink_callback *cb) | |
2701 | { | |
2702 | struct devlink *devlink; | |
2703 | struct devlink_sb *devlink_sb; | |
2704 | int start = cb->args[0]; | |
11a861d7 | 2705 | unsigned long index; |
bf797471 | 2706 | int idx = 0; |
c62c2cfb | 2707 | int err = 0; |
bf797471 | 2708 | |
294c4f57 | 2709 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
2bb88b2c | 2710 | if (!devlink->ops->sb_pool_get) |
437ebfd9 LR |
2711 | goto retry; |
2712 | ||
7715023a | 2713 | devl_lock(devlink); |
bf797471 JP |
2714 | list_for_each_entry(devlink_sb, &devlink->sb_list, list) { |
2715 | err = __sb_pool_get_dumpit(msg, start, &idx, devlink, | |
2716 | devlink_sb, | |
2717 | NETLINK_CB(cb->skb).portid, | |
2718 | cb->nlh->nlmsg_seq); | |
82274d07 JK |
2719 | if (err == -EOPNOTSUPP) { |
2720 | err = 0; | |
2721 | } else if (err) { | |
7715023a | 2722 | devl_unlock(devlink); |
437ebfd9 | 2723 | devlink_put(devlink); |
bf797471 | 2724 | goto out; |
2406e7e5 | 2725 | } |
bf797471 | 2726 | } |
7715023a | 2727 | devl_unlock(devlink); |
437ebfd9 LR |
2728 | retry: |
2729 | devlink_put(devlink); | |
bf797471 JP |
2730 | } |
2731 | out: | |
c62c2cfb JP |
2732 | if (err != -EMSGSIZE) |
2733 | return err; | |
2734 | ||
bf797471 JP |
2735 | cb->args[0] = idx; |
2736 | return msg->len; | |
2737 | } | |
2738 | ||
2739 | static int devlink_sb_pool_set(struct devlink *devlink, unsigned int sb_index, | |
2740 | u16 pool_index, u32 size, | |
f2ad1a52 IS |
2741 | enum devlink_sb_threshold_type threshold_type, |
2742 | struct netlink_ext_ack *extack) | |
bf797471 JP |
2743 | |
2744 | { | |
2745 | const struct devlink_ops *ops = devlink->ops; | |
2746 | ||
be6fe1d8 | 2747 | if (ops->sb_pool_set) |
bf797471 | 2748 | return ops->sb_pool_set(devlink, sb_index, pool_index, |
f2ad1a52 | 2749 | size, threshold_type, extack); |
bf797471 JP |
2750 | return -EOPNOTSUPP; |
2751 | } | |
2752 | ||
2753 | static int devlink_nl_cmd_sb_pool_set_doit(struct sk_buff *skb, | |
2754 | struct genl_info *info) | |
2755 | { | |
2756 | struct devlink *devlink = info->user_ptr[0]; | |
bf797471 | 2757 | enum devlink_sb_threshold_type threshold_type; |
637989b5 | 2758 | struct devlink_sb *devlink_sb; |
bf797471 JP |
2759 | u16 pool_index; |
2760 | u32 size; | |
2761 | int err; | |
2762 | ||
637989b5 PP |
2763 | devlink_sb = devlink_sb_get_from_info(devlink, info); |
2764 | if (IS_ERR(devlink_sb)) | |
2765 | return PTR_ERR(devlink_sb); | |
2766 | ||
bf797471 JP |
2767 | err = devlink_sb_pool_index_get_from_info(devlink_sb, info, |
2768 | &pool_index); | |
2769 | if (err) | |
2770 | return err; | |
2771 | ||
2772 | err = devlink_sb_th_type_get_from_info(info, &threshold_type); | |
2773 | if (err) | |
2774 | return err; | |
2775 | ||
1f7633b5 | 2776 | if (GENL_REQ_ATTR_CHECK(info, DEVLINK_ATTR_SB_POOL_SIZE)) |
bf797471 JP |
2777 | return -EINVAL; |
2778 | ||
2779 | size = nla_get_u32(info->attrs[DEVLINK_ATTR_SB_POOL_SIZE]); | |
2780 | return devlink_sb_pool_set(devlink, devlink_sb->index, | |
f2ad1a52 IS |
2781 | pool_index, size, threshold_type, |
2782 | info->extack); | |
bf797471 JP |
2783 | } |
2784 | ||
2785 | static int devlink_nl_sb_port_pool_fill(struct sk_buff *msg, | |
2786 | struct devlink *devlink, | |
2787 | struct devlink_port *devlink_port, | |
2788 | struct devlink_sb *devlink_sb, | |
2789 | u16 pool_index, | |
2790 | enum devlink_command cmd, | |
2791 | u32 portid, u32 seq, int flags) | |
2792 | { | |
df38dafd | 2793 | const struct devlink_ops *ops = devlink->ops; |
bf797471 JP |
2794 | u32 threshold; |
2795 | void *hdr; | |
2796 | int err; | |
2797 | ||
df38dafd JP |
2798 | err = ops->sb_port_pool_get(devlink_port, devlink_sb->index, |
2799 | pool_index, &threshold); | |
bf797471 JP |
2800 | if (err) |
2801 | return err; | |
2802 | ||
2803 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
2804 | if (!hdr) | |
2805 | return -EMSGSIZE; | |
2806 | ||
2807 | if (devlink_nl_put_handle(msg, devlink)) | |
2808 | goto nla_put_failure; | |
2809 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, devlink_port->index)) | |
2810 | goto nla_put_failure; | |
2811 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_INDEX, devlink_sb->index)) | |
2812 | goto nla_put_failure; | |
2813 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_POOL_INDEX, pool_index)) | |
2814 | goto nla_put_failure; | |
2815 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_THRESHOLD, threshold)) | |
2816 | goto nla_put_failure; | |
2817 | ||
df38dafd JP |
2818 | if (ops->sb_occ_port_pool_get) { |
2819 | u32 cur; | |
2820 | u32 max; | |
2821 | ||
2822 | err = ops->sb_occ_port_pool_get(devlink_port, devlink_sb->index, | |
2823 | pool_index, &cur, &max); | |
2824 | if (err && err != -EOPNOTSUPP) | |
849920c7 | 2825 | goto sb_occ_get_failure; |
df38dafd JP |
2826 | if (!err) { |
2827 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_OCC_CUR, cur)) | |
2828 | goto nla_put_failure; | |
2829 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_OCC_MAX, max)) | |
2830 | goto nla_put_failure; | |
2831 | } | |
2832 | } | |
2833 | ||
bf797471 JP |
2834 | genlmsg_end(msg, hdr); |
2835 | return 0; | |
2836 | ||
2837 | nla_put_failure: | |
849920c7 WH |
2838 | err = -EMSGSIZE; |
2839 | sb_occ_get_failure: | |
bf797471 | 2840 | genlmsg_cancel(msg, hdr); |
849920c7 | 2841 | return err; |
bf797471 JP |
2842 | } |
2843 | ||
2844 | static int devlink_nl_cmd_sb_port_pool_get_doit(struct sk_buff *skb, | |
2845 | struct genl_info *info) | |
2846 | { | |
637989b5 | 2847 | struct devlink_port *devlink_port = info->user_ptr[1]; |
bf797471 | 2848 | struct devlink *devlink = devlink_port->devlink; |
637989b5 | 2849 | struct devlink_sb *devlink_sb; |
bf797471 JP |
2850 | struct sk_buff *msg; |
2851 | u16 pool_index; | |
2852 | int err; | |
2853 | ||
637989b5 PP |
2854 | devlink_sb = devlink_sb_get_from_info(devlink, info); |
2855 | if (IS_ERR(devlink_sb)) | |
2856 | return PTR_ERR(devlink_sb); | |
2857 | ||
bf797471 JP |
2858 | err = devlink_sb_pool_index_get_from_info(devlink_sb, info, |
2859 | &pool_index); | |
2860 | if (err) | |
2861 | return err; | |
2862 | ||
be6fe1d8 | 2863 | if (!devlink->ops->sb_port_pool_get) |
bf797471 JP |
2864 | return -EOPNOTSUPP; |
2865 | ||
2866 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
2867 | if (!msg) | |
2868 | return -ENOMEM; | |
2869 | ||
2870 | err = devlink_nl_sb_port_pool_fill(msg, devlink, devlink_port, | |
2871 | devlink_sb, pool_index, | |
2872 | DEVLINK_CMD_SB_PORT_POOL_NEW, | |
2873 | info->snd_portid, info->snd_seq, 0); | |
2874 | if (err) { | |
2875 | nlmsg_free(msg); | |
2876 | return err; | |
2877 | } | |
2878 | ||
2879 | return genlmsg_reply(msg, info); | |
2880 | } | |
2881 | ||
2882 | static int __sb_port_pool_get_dumpit(struct sk_buff *msg, int start, int *p_idx, | |
2883 | struct devlink *devlink, | |
2884 | struct devlink_sb *devlink_sb, | |
2885 | u32 portid, u32 seq) | |
2886 | { | |
2887 | struct devlink_port *devlink_port; | |
2888 | u16 pool_count = devlink_sb_pool_count(devlink_sb); | |
2889 | u16 pool_index; | |
2890 | int err; | |
2891 | ||
2892 | list_for_each_entry(devlink_port, &devlink->port_list, list) { | |
2893 | for (pool_index = 0; pool_index < pool_count; pool_index++) { | |
2894 | if (*p_idx < start) { | |
2895 | (*p_idx)++; | |
2896 | continue; | |
2897 | } | |
2898 | err = devlink_nl_sb_port_pool_fill(msg, devlink, | |
2899 | devlink_port, | |
2900 | devlink_sb, | |
2901 | pool_index, | |
2902 | DEVLINK_CMD_SB_PORT_POOL_NEW, | |
2903 | portid, seq, | |
2904 | NLM_F_MULTI); | |
2905 | if (err) | |
2906 | return err; | |
2907 | (*p_idx)++; | |
2908 | } | |
2909 | } | |
2910 | return 0; | |
2911 | } | |
2912 | ||
2913 | static int devlink_nl_cmd_sb_port_pool_get_dumpit(struct sk_buff *msg, | |
2914 | struct netlink_callback *cb) | |
2915 | { | |
2916 | struct devlink *devlink; | |
2917 | struct devlink_sb *devlink_sb; | |
2918 | int start = cb->args[0]; | |
11a861d7 | 2919 | unsigned long index; |
bf797471 | 2920 | int idx = 0; |
c62c2cfb | 2921 | int err = 0; |
bf797471 | 2922 | |
294c4f57 JP |
2923 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
2924 | if (!devlink->ops->sb_port_pool_get) | |
437ebfd9 LR |
2925 | goto retry; |
2926 | ||
7715023a | 2927 | devl_lock(devlink); |
bf797471 JP |
2928 | list_for_each_entry(devlink_sb, &devlink->sb_list, list) { |
2929 | err = __sb_port_pool_get_dumpit(msg, start, &idx, | |
2930 | devlink, devlink_sb, | |
2931 | NETLINK_CB(cb->skb).portid, | |
2932 | cb->nlh->nlmsg_seq); | |
82274d07 JK |
2933 | if (err == -EOPNOTSUPP) { |
2934 | err = 0; | |
2935 | } else if (err) { | |
7715023a | 2936 | devl_unlock(devlink); |
437ebfd9 | 2937 | devlink_put(devlink); |
bf797471 | 2938 | goto out; |
2406e7e5 | 2939 | } |
bf797471 | 2940 | } |
7715023a | 2941 | devl_unlock(devlink); |
437ebfd9 LR |
2942 | retry: |
2943 | devlink_put(devlink); | |
bf797471 JP |
2944 | } |
2945 | out: | |
c62c2cfb JP |
2946 | if (err != -EMSGSIZE) |
2947 | return err; | |
2948 | ||
bf797471 JP |
2949 | cb->args[0] = idx; |
2950 | return msg->len; | |
2951 | } | |
2952 | ||
2953 | static int devlink_sb_port_pool_set(struct devlink_port *devlink_port, | |
2954 | unsigned int sb_index, u16 pool_index, | |
f2ad1a52 IS |
2955 | u32 threshold, |
2956 | struct netlink_ext_ack *extack) | |
bf797471 JP |
2957 | |
2958 | { | |
2959 | const struct devlink_ops *ops = devlink_port->devlink->ops; | |
2960 | ||
be6fe1d8 | 2961 | if (ops->sb_port_pool_set) |
bf797471 | 2962 | return ops->sb_port_pool_set(devlink_port, sb_index, |
f2ad1a52 | 2963 | pool_index, threshold, extack); |
bf797471 JP |
2964 | return -EOPNOTSUPP; |
2965 | } | |
2966 | ||
2967 | static int devlink_nl_cmd_sb_port_pool_set_doit(struct sk_buff *skb, | |
2968 | struct genl_info *info) | |
2969 | { | |
637989b5 PP |
2970 | struct devlink_port *devlink_port = info->user_ptr[1]; |
2971 | struct devlink *devlink = info->user_ptr[0]; | |
2972 | struct devlink_sb *devlink_sb; | |
bf797471 JP |
2973 | u16 pool_index; |
2974 | u32 threshold; | |
2975 | int err; | |
2976 | ||
637989b5 PP |
2977 | devlink_sb = devlink_sb_get_from_info(devlink, info); |
2978 | if (IS_ERR(devlink_sb)) | |
2979 | return PTR_ERR(devlink_sb); | |
2980 | ||
bf797471 JP |
2981 | err = devlink_sb_pool_index_get_from_info(devlink_sb, info, |
2982 | &pool_index); | |
2983 | if (err) | |
2984 | return err; | |
2985 | ||
1f7633b5 | 2986 | if (GENL_REQ_ATTR_CHECK(info, DEVLINK_ATTR_SB_THRESHOLD)) |
bf797471 JP |
2987 | return -EINVAL; |
2988 | ||
2989 | threshold = nla_get_u32(info->attrs[DEVLINK_ATTR_SB_THRESHOLD]); | |
2990 | return devlink_sb_port_pool_set(devlink_port, devlink_sb->index, | |
f2ad1a52 | 2991 | pool_index, threshold, info->extack); |
bf797471 JP |
2992 | } |
2993 | ||
2994 | static int | |
2995 | devlink_nl_sb_tc_pool_bind_fill(struct sk_buff *msg, struct devlink *devlink, | |
2996 | struct devlink_port *devlink_port, | |
2997 | struct devlink_sb *devlink_sb, u16 tc_index, | |
2998 | enum devlink_sb_pool_type pool_type, | |
2999 | enum devlink_command cmd, | |
3000 | u32 portid, u32 seq, int flags) | |
3001 | { | |
df38dafd | 3002 | const struct devlink_ops *ops = devlink->ops; |
bf797471 JP |
3003 | u16 pool_index; |
3004 | u32 threshold; | |
3005 | void *hdr; | |
3006 | int err; | |
3007 | ||
df38dafd JP |
3008 | err = ops->sb_tc_pool_bind_get(devlink_port, devlink_sb->index, |
3009 | tc_index, pool_type, | |
3010 | &pool_index, &threshold); | |
bf797471 JP |
3011 | if (err) |
3012 | return err; | |
3013 | ||
3014 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
3015 | if (!hdr) | |
3016 | return -EMSGSIZE; | |
3017 | ||
3018 | if (devlink_nl_put_handle(msg, devlink)) | |
3019 | goto nla_put_failure; | |
3020 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, devlink_port->index)) | |
3021 | goto nla_put_failure; | |
3022 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_INDEX, devlink_sb->index)) | |
3023 | goto nla_put_failure; | |
3024 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_TC_INDEX, tc_index)) | |
3025 | goto nla_put_failure; | |
3026 | if (nla_put_u8(msg, DEVLINK_ATTR_SB_POOL_TYPE, pool_type)) | |
3027 | goto nla_put_failure; | |
3028 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_POOL_INDEX, pool_index)) | |
3029 | goto nla_put_failure; | |
3030 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_THRESHOLD, threshold)) | |
3031 | goto nla_put_failure; | |
3032 | ||
df38dafd JP |
3033 | if (ops->sb_occ_tc_port_bind_get) { |
3034 | u32 cur; | |
3035 | u32 max; | |
3036 | ||
3037 | err = ops->sb_occ_tc_port_bind_get(devlink_port, | |
3038 | devlink_sb->index, | |
3039 | tc_index, pool_type, | |
3040 | &cur, &max); | |
3041 | if (err && err != -EOPNOTSUPP) | |
3042 | return err; | |
3043 | if (!err) { | |
3044 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_OCC_CUR, cur)) | |
3045 | goto nla_put_failure; | |
3046 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_OCC_MAX, max)) | |
3047 | goto nla_put_failure; | |
3048 | } | |
3049 | } | |
3050 | ||
bf797471 JP |
3051 | genlmsg_end(msg, hdr); |
3052 | return 0; | |
3053 | ||
3054 | nla_put_failure: | |
3055 | genlmsg_cancel(msg, hdr); | |
3056 | return -EMSGSIZE; | |
3057 | } | |
3058 | ||
3059 | static int devlink_nl_cmd_sb_tc_pool_bind_get_doit(struct sk_buff *skb, | |
3060 | struct genl_info *info) | |
3061 | { | |
637989b5 | 3062 | struct devlink_port *devlink_port = info->user_ptr[1]; |
bf797471 | 3063 | struct devlink *devlink = devlink_port->devlink; |
637989b5 | 3064 | struct devlink_sb *devlink_sb; |
bf797471 JP |
3065 | struct sk_buff *msg; |
3066 | enum devlink_sb_pool_type pool_type; | |
3067 | u16 tc_index; | |
3068 | int err; | |
3069 | ||
637989b5 PP |
3070 | devlink_sb = devlink_sb_get_from_info(devlink, info); |
3071 | if (IS_ERR(devlink_sb)) | |
3072 | return PTR_ERR(devlink_sb); | |
3073 | ||
bf797471 JP |
3074 | err = devlink_sb_pool_type_get_from_info(info, &pool_type); |
3075 | if (err) | |
3076 | return err; | |
3077 | ||
3078 | err = devlink_sb_tc_index_get_from_info(devlink_sb, info, | |
3079 | pool_type, &tc_index); | |
3080 | if (err) | |
3081 | return err; | |
3082 | ||
be6fe1d8 | 3083 | if (!devlink->ops->sb_tc_pool_bind_get) |
bf797471 JP |
3084 | return -EOPNOTSUPP; |
3085 | ||
3086 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
3087 | if (!msg) | |
3088 | return -ENOMEM; | |
3089 | ||
3090 | err = devlink_nl_sb_tc_pool_bind_fill(msg, devlink, devlink_port, | |
3091 | devlink_sb, tc_index, pool_type, | |
3092 | DEVLINK_CMD_SB_TC_POOL_BIND_NEW, | |
3093 | info->snd_portid, | |
3094 | info->snd_seq, 0); | |
3095 | if (err) { | |
3096 | nlmsg_free(msg); | |
3097 | return err; | |
3098 | } | |
3099 | ||
3100 | return genlmsg_reply(msg, info); | |
3101 | } | |
3102 | ||
3103 | static int __sb_tc_pool_bind_get_dumpit(struct sk_buff *msg, | |
3104 | int start, int *p_idx, | |
3105 | struct devlink *devlink, | |
3106 | struct devlink_sb *devlink_sb, | |
3107 | u32 portid, u32 seq) | |
3108 | { | |
3109 | struct devlink_port *devlink_port; | |
3110 | u16 tc_index; | |
3111 | int err; | |
3112 | ||
3113 | list_for_each_entry(devlink_port, &devlink->port_list, list) { | |
3114 | for (tc_index = 0; | |
3115 | tc_index < devlink_sb->ingress_tc_count; tc_index++) { | |
3116 | if (*p_idx < start) { | |
3117 | (*p_idx)++; | |
3118 | continue; | |
3119 | } | |
3120 | err = devlink_nl_sb_tc_pool_bind_fill(msg, devlink, | |
3121 | devlink_port, | |
3122 | devlink_sb, | |
3123 | tc_index, | |
3124 | DEVLINK_SB_POOL_TYPE_INGRESS, | |
3125 | DEVLINK_CMD_SB_TC_POOL_BIND_NEW, | |
3126 | portid, seq, | |
3127 | NLM_F_MULTI); | |
3128 | if (err) | |
3129 | return err; | |
3130 | (*p_idx)++; | |
3131 | } | |
3132 | for (tc_index = 0; | |
3133 | tc_index < devlink_sb->egress_tc_count; tc_index++) { | |
3134 | if (*p_idx < start) { | |
3135 | (*p_idx)++; | |
3136 | continue; | |
3137 | } | |
3138 | err = devlink_nl_sb_tc_pool_bind_fill(msg, devlink, | |
3139 | devlink_port, | |
3140 | devlink_sb, | |
3141 | tc_index, | |
3142 | DEVLINK_SB_POOL_TYPE_EGRESS, | |
3143 | DEVLINK_CMD_SB_TC_POOL_BIND_NEW, | |
3144 | portid, seq, | |
3145 | NLM_F_MULTI); | |
3146 | if (err) | |
3147 | return err; | |
3148 | (*p_idx)++; | |
3149 | } | |
3150 | } | |
3151 | return 0; | |
3152 | } | |
3153 | ||
3154 | static int | |
3155 | devlink_nl_cmd_sb_tc_pool_bind_get_dumpit(struct sk_buff *msg, | |
3156 | struct netlink_callback *cb) | |
3157 | { | |
3158 | struct devlink *devlink; | |
3159 | struct devlink_sb *devlink_sb; | |
3160 | int start = cb->args[0]; | |
11a861d7 | 3161 | unsigned long index; |
bf797471 | 3162 | int idx = 0; |
c62c2cfb | 3163 | int err = 0; |
bf797471 | 3164 | |
294c4f57 JP |
3165 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
3166 | if (!devlink->ops->sb_tc_pool_bind_get) | |
437ebfd9 | 3167 | goto retry; |
2406e7e5 | 3168 | |
7715023a | 3169 | devl_lock(devlink); |
bf797471 JP |
3170 | list_for_each_entry(devlink_sb, &devlink->sb_list, list) { |
3171 | err = __sb_tc_pool_bind_get_dumpit(msg, start, &idx, | |
3172 | devlink, | |
3173 | devlink_sb, | |
3174 | NETLINK_CB(cb->skb).portid, | |
3175 | cb->nlh->nlmsg_seq); | |
82274d07 JK |
3176 | if (err == -EOPNOTSUPP) { |
3177 | err = 0; | |
3178 | } else if (err) { | |
7715023a | 3179 | devl_unlock(devlink); |
437ebfd9 | 3180 | devlink_put(devlink); |
bf797471 | 3181 | goto out; |
2406e7e5 | 3182 | } |
bf797471 | 3183 | } |
7715023a | 3184 | devl_unlock(devlink); |
437ebfd9 LR |
3185 | retry: |
3186 | devlink_put(devlink); | |
bf797471 JP |
3187 | } |
3188 | out: | |
c62c2cfb JP |
3189 | if (err != -EMSGSIZE) |
3190 | return err; | |
3191 | ||
bf797471 JP |
3192 | cb->args[0] = idx; |
3193 | return msg->len; | |
3194 | } | |
3195 | ||
3196 | static int devlink_sb_tc_pool_bind_set(struct devlink_port *devlink_port, | |
3197 | unsigned int sb_index, u16 tc_index, | |
3198 | enum devlink_sb_pool_type pool_type, | |
f2ad1a52 IS |
3199 | u16 pool_index, u32 threshold, |
3200 | struct netlink_ext_ack *extack) | |
bf797471 JP |
3201 | |
3202 | { | |
3203 | const struct devlink_ops *ops = devlink_port->devlink->ops; | |
3204 | ||
be6fe1d8 | 3205 | if (ops->sb_tc_pool_bind_set) |
bf797471 JP |
3206 | return ops->sb_tc_pool_bind_set(devlink_port, sb_index, |
3207 | tc_index, pool_type, | |
f2ad1a52 | 3208 | pool_index, threshold, extack); |
bf797471 JP |
3209 | return -EOPNOTSUPP; |
3210 | } | |
3211 | ||
3212 | static int devlink_nl_cmd_sb_tc_pool_bind_set_doit(struct sk_buff *skb, | |
3213 | struct genl_info *info) | |
3214 | { | |
637989b5 PP |
3215 | struct devlink_port *devlink_port = info->user_ptr[1]; |
3216 | struct devlink *devlink = info->user_ptr[0]; | |
bf797471 | 3217 | enum devlink_sb_pool_type pool_type; |
637989b5 | 3218 | struct devlink_sb *devlink_sb; |
bf797471 JP |
3219 | u16 tc_index; |
3220 | u16 pool_index; | |
3221 | u32 threshold; | |
3222 | int err; | |
3223 | ||
637989b5 PP |
3224 | devlink_sb = devlink_sb_get_from_info(devlink, info); |
3225 | if (IS_ERR(devlink_sb)) | |
3226 | return PTR_ERR(devlink_sb); | |
3227 | ||
bf797471 JP |
3228 | err = devlink_sb_pool_type_get_from_info(info, &pool_type); |
3229 | if (err) | |
3230 | return err; | |
3231 | ||
3232 | err = devlink_sb_tc_index_get_from_info(devlink_sb, info, | |
3233 | pool_type, &tc_index); | |
3234 | if (err) | |
3235 | return err; | |
3236 | ||
3237 | err = devlink_sb_pool_index_get_from_info(devlink_sb, info, | |
3238 | &pool_index); | |
3239 | if (err) | |
3240 | return err; | |
3241 | ||
1f7633b5 | 3242 | if (GENL_REQ_ATTR_CHECK(info, DEVLINK_ATTR_SB_THRESHOLD)) |
bf797471 JP |
3243 | return -EINVAL; |
3244 | ||
3245 | threshold = nla_get_u32(info->attrs[DEVLINK_ATTR_SB_THRESHOLD]); | |
3246 | return devlink_sb_tc_pool_bind_set(devlink_port, devlink_sb->index, | |
3247 | tc_index, pool_type, | |
f2ad1a52 | 3248 | pool_index, threshold, info->extack); |
bf797471 JP |
3249 | } |
3250 | ||
df38dafd JP |
3251 | static int devlink_nl_cmd_sb_occ_snapshot_doit(struct sk_buff *skb, |
3252 | struct genl_info *info) | |
3253 | { | |
3254 | struct devlink *devlink = info->user_ptr[0]; | |
df38dafd | 3255 | const struct devlink_ops *ops = devlink->ops; |
637989b5 PP |
3256 | struct devlink_sb *devlink_sb; |
3257 | ||
3258 | devlink_sb = devlink_sb_get_from_info(devlink, info); | |
3259 | if (IS_ERR(devlink_sb)) | |
3260 | return PTR_ERR(devlink_sb); | |
df38dafd | 3261 | |
be6fe1d8 | 3262 | if (ops->sb_occ_snapshot) |
df38dafd JP |
3263 | return ops->sb_occ_snapshot(devlink, devlink_sb->index); |
3264 | return -EOPNOTSUPP; | |
3265 | } | |
3266 | ||
3267 | static int devlink_nl_cmd_sb_occ_max_clear_doit(struct sk_buff *skb, | |
3268 | struct genl_info *info) | |
3269 | { | |
3270 | struct devlink *devlink = info->user_ptr[0]; | |
df38dafd | 3271 | const struct devlink_ops *ops = devlink->ops; |
637989b5 PP |
3272 | struct devlink_sb *devlink_sb; |
3273 | ||
3274 | devlink_sb = devlink_sb_get_from_info(devlink, info); | |
3275 | if (IS_ERR(devlink_sb)) | |
3276 | return PTR_ERR(devlink_sb); | |
df38dafd | 3277 | |
be6fe1d8 | 3278 | if (ops->sb_occ_max_clear) |
df38dafd JP |
3279 | return ops->sb_occ_max_clear(devlink, devlink_sb->index); |
3280 | return -EOPNOTSUPP; | |
3281 | } | |
3282 | ||
21e3d2dd JP |
3283 | static int devlink_nl_eswitch_fill(struct sk_buff *msg, struct devlink *devlink, |
3284 | enum devlink_command cmd, u32 portid, | |
3285 | u32 seq, int flags) | |
08f4b591 | 3286 | { |
59bfde01 | 3287 | const struct devlink_ops *ops = devlink->ops; |
98fdbea5 LR |
3288 | enum devlink_eswitch_encap_mode encap_mode; |
3289 | u8 inline_mode; | |
08f4b591 | 3290 | void *hdr; |
59bfde01 RD |
3291 | int err = 0; |
3292 | u16 mode; | |
08f4b591 OG |
3293 | |
3294 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
3295 | if (!hdr) | |
3296 | return -EMSGSIZE; | |
3297 | ||
59bfde01 RD |
3298 | err = devlink_nl_put_handle(msg, devlink); |
3299 | if (err) | |
1a6aa36b | 3300 | goto nla_put_failure; |
08f4b591 | 3301 | |
4456f61c JP |
3302 | if (ops->eswitch_mode_get) { |
3303 | err = ops->eswitch_mode_get(devlink, &mode); | |
3304 | if (err) | |
3305 | goto nla_put_failure; | |
3306 | err = nla_put_u16(msg, DEVLINK_ATTR_ESWITCH_MODE, mode); | |
3307 | if (err) | |
3308 | goto nla_put_failure; | |
3309 | } | |
59bfde01 RD |
3310 | |
3311 | if (ops->eswitch_inline_mode_get) { | |
3312 | err = ops->eswitch_inline_mode_get(devlink, &inline_mode); | |
3313 | if (err) | |
1a6aa36b | 3314 | goto nla_put_failure; |
59bfde01 RD |
3315 | err = nla_put_u8(msg, DEVLINK_ATTR_ESWITCH_INLINE_MODE, |
3316 | inline_mode); | |
3317 | if (err) | |
1a6aa36b | 3318 | goto nla_put_failure; |
59bfde01 | 3319 | } |
08f4b591 | 3320 | |
f43e9b06 RD |
3321 | if (ops->eswitch_encap_mode_get) { |
3322 | err = ops->eswitch_encap_mode_get(devlink, &encap_mode); | |
3323 | if (err) | |
3324 | goto nla_put_failure; | |
3325 | err = nla_put_u8(msg, DEVLINK_ATTR_ESWITCH_ENCAP_MODE, encap_mode); | |
3326 | if (err) | |
3327 | goto nla_put_failure; | |
3328 | } | |
3329 | ||
08f4b591 OG |
3330 | genlmsg_end(msg, hdr); |
3331 | return 0; | |
3332 | ||
1a6aa36b | 3333 | nla_put_failure: |
08f4b591 | 3334 | genlmsg_cancel(msg, hdr); |
59bfde01 | 3335 | return err; |
08f4b591 OG |
3336 | } |
3337 | ||
adf200f3 JP |
3338 | static int devlink_nl_cmd_eswitch_get_doit(struct sk_buff *skb, |
3339 | struct genl_info *info) | |
08f4b591 OG |
3340 | { |
3341 | struct devlink *devlink = info->user_ptr[0]; | |
08f4b591 | 3342 | struct sk_buff *msg; |
08f4b591 OG |
3343 | int err; |
3344 | ||
08f4b591 OG |
3345 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
3346 | if (!msg) | |
3347 | return -ENOMEM; | |
3348 | ||
21e3d2dd JP |
3349 | err = devlink_nl_eswitch_fill(msg, devlink, DEVLINK_CMD_ESWITCH_GET, |
3350 | info->snd_portid, info->snd_seq, 0); | |
08f4b591 OG |
3351 | |
3352 | if (err) { | |
3353 | nlmsg_free(msg); | |
3354 | return err; | |
3355 | } | |
3356 | ||
3357 | return genlmsg_reply(msg, info); | |
3358 | } | |
3359 | ||
a8ecb93e DL |
3360 | static int devlink_rate_nodes_check(struct devlink *devlink, u16 mode, |
3361 | struct netlink_ext_ack *extack) | |
3362 | { | |
3363 | struct devlink_rate *devlink_rate; | |
a8ecb93e DL |
3364 | |
3365 | list_for_each_entry(devlink_rate, &devlink->rate_list, list) | |
3366 | if (devlink_rate_is_node(devlink_rate)) { | |
3367 | NL_SET_ERR_MSG_MOD(extack, "Rate node(s) exists."); | |
3368 | return -EBUSY; | |
3369 | } | |
3370 | return 0; | |
3371 | } | |
3372 | ||
adf200f3 JP |
3373 | static int devlink_nl_cmd_eswitch_set_doit(struct sk_buff *skb, |
3374 | struct genl_info *info) | |
08f4b591 OG |
3375 | { |
3376 | struct devlink *devlink = info->user_ptr[0]; | |
3377 | const struct devlink_ops *ops = devlink->ops; | |
98fdbea5 LR |
3378 | enum devlink_eswitch_encap_mode encap_mode; |
3379 | u8 inline_mode; | |
59bfde01 | 3380 | int err = 0; |
f43e9b06 | 3381 | u16 mode; |
08f4b591 | 3382 | |
59bfde01 RD |
3383 | if (info->attrs[DEVLINK_ATTR_ESWITCH_MODE]) { |
3384 | if (!ops->eswitch_mode_set) | |
3385 | return -EOPNOTSUPP; | |
3386 | mode = nla_get_u16(info->attrs[DEVLINK_ATTR_ESWITCH_MODE]); | |
a8ecb93e DL |
3387 | err = devlink_rate_nodes_check(devlink, mode, info->extack); |
3388 | if (err) | |
3389 | return err; | |
db7ff19e | 3390 | err = ops->eswitch_mode_set(devlink, mode, info->extack); |
59bfde01 RD |
3391 | if (err) |
3392 | return err; | |
3393 | } | |
08f4b591 | 3394 | |
59bfde01 RD |
3395 | if (info->attrs[DEVLINK_ATTR_ESWITCH_INLINE_MODE]) { |
3396 | if (!ops->eswitch_inline_mode_set) | |
3397 | return -EOPNOTSUPP; | |
3398 | inline_mode = nla_get_u8( | |
3399 | info->attrs[DEVLINK_ATTR_ESWITCH_INLINE_MODE]); | |
db7ff19e EB |
3400 | err = ops->eswitch_inline_mode_set(devlink, inline_mode, |
3401 | info->extack); | |
59bfde01 RD |
3402 | if (err) |
3403 | return err; | |
3404 | } | |
f43e9b06 RD |
3405 | |
3406 | if (info->attrs[DEVLINK_ATTR_ESWITCH_ENCAP_MODE]) { | |
3407 | if (!ops->eswitch_encap_mode_set) | |
3408 | return -EOPNOTSUPP; | |
3409 | encap_mode = nla_get_u8(info->attrs[DEVLINK_ATTR_ESWITCH_ENCAP_MODE]); | |
db7ff19e EB |
3410 | err = ops->eswitch_encap_mode_set(devlink, encap_mode, |
3411 | info->extack); | |
f43e9b06 RD |
3412 | if (err) |
3413 | return err; | |
3414 | } | |
3415 | ||
1555d204 AS |
3416 | return 0; |
3417 | } | |
3418 | ||
3419 | int devlink_dpipe_match_put(struct sk_buff *skb, | |
3420 | struct devlink_dpipe_match *match) | |
3421 | { | |
3422 | struct devlink_dpipe_header *header = match->header; | |
3423 | struct devlink_dpipe_field *field = &header->fields[match->field_id]; | |
3424 | struct nlattr *match_attr; | |
3425 | ||
ae0be8de | 3426 | match_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_MATCH); |
1555d204 AS |
3427 | if (!match_attr) |
3428 | return -EMSGSIZE; | |
3429 | ||
3430 | if (nla_put_u32(skb, DEVLINK_ATTR_DPIPE_MATCH_TYPE, match->type) || | |
3431 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_INDEX, match->header_index) || | |
3432 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_ID, header->id) || | |
3433 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_ID, field->id) || | |
3434 | nla_put_u8(skb, DEVLINK_ATTR_DPIPE_HEADER_GLOBAL, header->global)) | |
3435 | goto nla_put_failure; | |
3436 | ||
3437 | nla_nest_end(skb, match_attr); | |
3438 | return 0; | |
3439 | ||
3440 | nla_put_failure: | |
3441 | nla_nest_cancel(skb, match_attr); | |
3442 | return -EMSGSIZE; | |
3443 | } | |
3444 | EXPORT_SYMBOL_GPL(devlink_dpipe_match_put); | |
3445 | ||
3446 | static int devlink_dpipe_matches_put(struct devlink_dpipe_table *table, | |
3447 | struct sk_buff *skb) | |
3448 | { | |
3449 | struct nlattr *matches_attr; | |
3450 | ||
ae0be8de MK |
3451 | matches_attr = nla_nest_start_noflag(skb, |
3452 | DEVLINK_ATTR_DPIPE_TABLE_MATCHES); | |
1555d204 AS |
3453 | if (!matches_attr) |
3454 | return -EMSGSIZE; | |
3455 | ||
3456 | if (table->table_ops->matches_dump(table->priv, skb)) | |
3457 | goto nla_put_failure; | |
3458 | ||
3459 | nla_nest_end(skb, matches_attr); | |
3460 | return 0; | |
3461 | ||
3462 | nla_put_failure: | |
3463 | nla_nest_cancel(skb, matches_attr); | |
3464 | return -EMSGSIZE; | |
3465 | } | |
3466 | ||
3467 | int devlink_dpipe_action_put(struct sk_buff *skb, | |
3468 | struct devlink_dpipe_action *action) | |
3469 | { | |
3470 | struct devlink_dpipe_header *header = action->header; | |
3471 | struct devlink_dpipe_field *field = &header->fields[action->field_id]; | |
3472 | struct nlattr *action_attr; | |
3473 | ||
ae0be8de | 3474 | action_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_ACTION); |
1555d204 AS |
3475 | if (!action_attr) |
3476 | return -EMSGSIZE; | |
3477 | ||
3478 | if (nla_put_u32(skb, DEVLINK_ATTR_DPIPE_ACTION_TYPE, action->type) || | |
3479 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_INDEX, action->header_index) || | |
3480 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_ID, header->id) || | |
3481 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_ID, field->id) || | |
3482 | nla_put_u8(skb, DEVLINK_ATTR_DPIPE_HEADER_GLOBAL, header->global)) | |
3483 | goto nla_put_failure; | |
3484 | ||
3485 | nla_nest_end(skb, action_attr); | |
3486 | return 0; | |
3487 | ||
3488 | nla_put_failure: | |
3489 | nla_nest_cancel(skb, action_attr); | |
3490 | return -EMSGSIZE; | |
3491 | } | |
3492 | EXPORT_SYMBOL_GPL(devlink_dpipe_action_put); | |
3493 | ||
3494 | static int devlink_dpipe_actions_put(struct devlink_dpipe_table *table, | |
3495 | struct sk_buff *skb) | |
3496 | { | |
3497 | struct nlattr *actions_attr; | |
3498 | ||
ae0be8de MK |
3499 | actions_attr = nla_nest_start_noflag(skb, |
3500 | DEVLINK_ATTR_DPIPE_TABLE_ACTIONS); | |
1555d204 AS |
3501 | if (!actions_attr) |
3502 | return -EMSGSIZE; | |
3503 | ||
3504 | if (table->table_ops->actions_dump(table->priv, skb)) | |
3505 | goto nla_put_failure; | |
3506 | ||
3507 | nla_nest_end(skb, actions_attr); | |
3508 | return 0; | |
3509 | ||
3510 | nla_put_failure: | |
3511 | nla_nest_cancel(skb, actions_attr); | |
3512 | return -EMSGSIZE; | |
3513 | } | |
3514 | ||
3515 | static int devlink_dpipe_table_put(struct sk_buff *skb, | |
3516 | struct devlink_dpipe_table *table) | |
3517 | { | |
3518 | struct nlattr *table_attr; | |
ffd3cdcc | 3519 | u64 table_size; |
1555d204 | 3520 | |
ffd3cdcc | 3521 | table_size = table->table_ops->size_get(table->priv); |
ae0be8de | 3522 | table_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_TABLE); |
1555d204 AS |
3523 | if (!table_attr) |
3524 | return -EMSGSIZE; | |
3525 | ||
3526 | if (nla_put_string(skb, DEVLINK_ATTR_DPIPE_TABLE_NAME, table->name) || | |
ffd3cdcc | 3527 | nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_TABLE_SIZE, table_size, |
1555d204 AS |
3528 | DEVLINK_ATTR_PAD)) |
3529 | goto nla_put_failure; | |
3530 | if (nla_put_u8(skb, DEVLINK_ATTR_DPIPE_TABLE_COUNTERS_ENABLED, | |
3531 | table->counters_enabled)) | |
3532 | goto nla_put_failure; | |
3533 | ||
56dc7cd0 | 3534 | if (table->resource_valid) { |
3d18e4f1 AS |
3535 | if (nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_TABLE_RESOURCE_ID, |
3536 | table->resource_id, DEVLINK_ATTR_PAD) || | |
3537 | nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_TABLE_RESOURCE_UNITS, | |
3538 | table->resource_units, DEVLINK_ATTR_PAD)) | |
3539 | goto nla_put_failure; | |
56dc7cd0 | 3540 | } |
1555d204 AS |
3541 | if (devlink_dpipe_matches_put(table, skb)) |
3542 | goto nla_put_failure; | |
3543 | ||
3544 | if (devlink_dpipe_actions_put(table, skb)) | |
3545 | goto nla_put_failure; | |
3546 | ||
3547 | nla_nest_end(skb, table_attr); | |
3548 | return 0; | |
3549 | ||
3550 | nla_put_failure: | |
3551 | nla_nest_cancel(skb, table_attr); | |
3552 | return -EMSGSIZE; | |
3553 | } | |
3554 | ||
3555 | static int devlink_dpipe_send_and_alloc_skb(struct sk_buff **pskb, | |
3556 | struct genl_info *info) | |
3557 | { | |
3558 | int err; | |
3559 | ||
3560 | if (*pskb) { | |
3561 | err = genlmsg_reply(*pskb, info); | |
3562 | if (err) | |
3563 | return err; | |
3564 | } | |
3565 | *pskb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
3566 | if (!*pskb) | |
3567 | return -ENOMEM; | |
3568 | return 0; | |
3569 | } | |
3570 | ||
3571 | static int devlink_dpipe_tables_fill(struct genl_info *info, | |
3572 | enum devlink_command cmd, int flags, | |
3573 | struct list_head *dpipe_tables, | |
3574 | const char *table_name) | |
3575 | { | |
3576 | struct devlink *devlink = info->user_ptr[0]; | |
3577 | struct devlink_dpipe_table *table; | |
3578 | struct nlattr *tables_attr; | |
3579 | struct sk_buff *skb = NULL; | |
3580 | struct nlmsghdr *nlh; | |
3581 | bool incomplete; | |
3582 | void *hdr; | |
3583 | int i; | |
3584 | int err; | |
3585 | ||
3586 | table = list_first_entry(dpipe_tables, | |
3587 | struct devlink_dpipe_table, list); | |
3588 | start_again: | |
3589 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); | |
3590 | if (err) | |
3591 | return err; | |
3592 | ||
3593 | hdr = genlmsg_put(skb, info->snd_portid, info->snd_seq, | |
3594 | &devlink_nl_family, NLM_F_MULTI, cmd); | |
6044bd4a HY |
3595 | if (!hdr) { |
3596 | nlmsg_free(skb); | |
1555d204 | 3597 | return -EMSGSIZE; |
6044bd4a | 3598 | } |
1555d204 AS |
3599 | |
3600 | if (devlink_nl_put_handle(skb, devlink)) | |
3601 | goto nla_put_failure; | |
ae0be8de | 3602 | tables_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_TABLES); |
1555d204 AS |
3603 | if (!tables_attr) |
3604 | goto nla_put_failure; | |
3605 | ||
3606 | i = 0; | |
3607 | incomplete = false; | |
3608 | list_for_each_entry_from(table, dpipe_tables, list) { | |
3609 | if (!table_name) { | |
3610 | err = devlink_dpipe_table_put(skb, table); | |
3611 | if (err) { | |
3612 | if (!i) | |
3613 | goto err_table_put; | |
3614 | incomplete = true; | |
3615 | break; | |
3616 | } | |
3617 | } else { | |
3618 | if (!strcmp(table->name, table_name)) { | |
3619 | err = devlink_dpipe_table_put(skb, table); | |
3620 | if (err) | |
3621 | break; | |
3622 | } | |
3623 | } | |
3624 | i++; | |
3625 | } | |
3626 | ||
3627 | nla_nest_end(skb, tables_attr); | |
3628 | genlmsg_end(skb, hdr); | |
3629 | if (incomplete) | |
3630 | goto start_again; | |
3631 | ||
3632 | send_done: | |
3633 | nlh = nlmsg_put(skb, info->snd_portid, info->snd_seq, | |
3634 | NLMSG_DONE, 0, flags | NLM_F_MULTI); | |
3635 | if (!nlh) { | |
3636 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); | |
3637 | if (err) | |
7fe4d6dc | 3638 | return err; |
1555d204 AS |
3639 | goto send_done; |
3640 | } | |
3641 | ||
3642 | return genlmsg_reply(skb, info); | |
3643 | ||
3644 | nla_put_failure: | |
3645 | err = -EMSGSIZE; | |
3646 | err_table_put: | |
1555d204 AS |
3647 | nlmsg_free(skb); |
3648 | return err; | |
3649 | } | |
3650 | ||
3651 | static int devlink_nl_cmd_dpipe_table_get(struct sk_buff *skb, | |
3652 | struct genl_info *info) | |
3653 | { | |
3654 | struct devlink *devlink = info->user_ptr[0]; | |
3655 | const char *table_name = NULL; | |
3656 | ||
3657 | if (info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME]) | |
3658 | table_name = nla_data(info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME]); | |
3659 | ||
3660 | return devlink_dpipe_tables_fill(info, DEVLINK_CMD_DPIPE_TABLE_GET, 0, | |
3661 | &devlink->dpipe_table_list, | |
3662 | table_name); | |
3663 | } | |
3664 | ||
3665 | static int devlink_dpipe_value_put(struct sk_buff *skb, | |
3666 | struct devlink_dpipe_value *value) | |
3667 | { | |
3668 | if (nla_put(skb, DEVLINK_ATTR_DPIPE_VALUE, | |
3669 | value->value_size, value->value)) | |
3670 | return -EMSGSIZE; | |
3671 | if (value->mask) | |
3672 | if (nla_put(skb, DEVLINK_ATTR_DPIPE_VALUE_MASK, | |
3673 | value->value_size, value->mask)) | |
3674 | return -EMSGSIZE; | |
3675 | if (value->mapping_valid) | |
3676 | if (nla_put_u32(skb, DEVLINK_ATTR_DPIPE_VALUE_MAPPING, | |
3677 | value->mapping_value)) | |
3678 | return -EMSGSIZE; | |
3679 | return 0; | |
3680 | } | |
3681 | ||
3682 | static int devlink_dpipe_action_value_put(struct sk_buff *skb, | |
3683 | struct devlink_dpipe_value *value) | |
3684 | { | |
3685 | if (!value->action) | |
3686 | return -EINVAL; | |
3687 | if (devlink_dpipe_action_put(skb, value->action)) | |
3688 | return -EMSGSIZE; | |
3689 | if (devlink_dpipe_value_put(skb, value)) | |
3690 | return -EMSGSIZE; | |
3691 | return 0; | |
3692 | } | |
3693 | ||
3694 | static int devlink_dpipe_action_values_put(struct sk_buff *skb, | |
3695 | struct devlink_dpipe_value *values, | |
3696 | unsigned int values_count) | |
3697 | { | |
3698 | struct nlattr *action_attr; | |
3699 | int i; | |
3700 | int err; | |
3701 | ||
3702 | for (i = 0; i < values_count; i++) { | |
ae0be8de MK |
3703 | action_attr = nla_nest_start_noflag(skb, |
3704 | DEVLINK_ATTR_DPIPE_ACTION_VALUE); | |
1555d204 AS |
3705 | if (!action_attr) |
3706 | return -EMSGSIZE; | |
3707 | err = devlink_dpipe_action_value_put(skb, &values[i]); | |
3708 | if (err) | |
3709 | goto err_action_value_put; | |
3710 | nla_nest_end(skb, action_attr); | |
3711 | } | |
3712 | return 0; | |
3713 | ||
3714 | err_action_value_put: | |
3715 | nla_nest_cancel(skb, action_attr); | |
3716 | return err; | |
3717 | } | |
3718 | ||
3719 | static int devlink_dpipe_match_value_put(struct sk_buff *skb, | |
3720 | struct devlink_dpipe_value *value) | |
3721 | { | |
3722 | if (!value->match) | |
3723 | return -EINVAL; | |
3724 | if (devlink_dpipe_match_put(skb, value->match)) | |
3725 | return -EMSGSIZE; | |
3726 | if (devlink_dpipe_value_put(skb, value)) | |
3727 | return -EMSGSIZE; | |
3728 | return 0; | |
3729 | } | |
3730 | ||
3731 | static int devlink_dpipe_match_values_put(struct sk_buff *skb, | |
3732 | struct devlink_dpipe_value *values, | |
3733 | unsigned int values_count) | |
3734 | { | |
3735 | struct nlattr *match_attr; | |
3736 | int i; | |
3737 | int err; | |
3738 | ||
3739 | for (i = 0; i < values_count; i++) { | |
ae0be8de MK |
3740 | match_attr = nla_nest_start_noflag(skb, |
3741 | DEVLINK_ATTR_DPIPE_MATCH_VALUE); | |
1555d204 AS |
3742 | if (!match_attr) |
3743 | return -EMSGSIZE; | |
3744 | err = devlink_dpipe_match_value_put(skb, &values[i]); | |
3745 | if (err) | |
3746 | goto err_match_value_put; | |
3747 | nla_nest_end(skb, match_attr); | |
3748 | } | |
3749 | return 0; | |
3750 | ||
3751 | err_match_value_put: | |
3752 | nla_nest_cancel(skb, match_attr); | |
3753 | return err; | |
3754 | } | |
3755 | ||
3756 | static int devlink_dpipe_entry_put(struct sk_buff *skb, | |
3757 | struct devlink_dpipe_entry *entry) | |
3758 | { | |
3759 | struct nlattr *entry_attr, *matches_attr, *actions_attr; | |
3760 | int err; | |
3761 | ||
ae0be8de | 3762 | entry_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_ENTRY); |
1555d204 AS |
3763 | if (!entry_attr) |
3764 | return -EMSGSIZE; | |
3765 | ||
3766 | if (nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_ENTRY_INDEX, entry->index, | |
3767 | DEVLINK_ATTR_PAD)) | |
3768 | goto nla_put_failure; | |
3769 | if (entry->counter_valid) | |
3770 | if (nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_ENTRY_COUNTER, | |
3771 | entry->counter, DEVLINK_ATTR_PAD)) | |
3772 | goto nla_put_failure; | |
3773 | ||
ae0be8de MK |
3774 | matches_attr = nla_nest_start_noflag(skb, |
3775 | DEVLINK_ATTR_DPIPE_ENTRY_MATCH_VALUES); | |
1555d204 AS |
3776 | if (!matches_attr) |
3777 | goto nla_put_failure; | |
3778 | ||
3779 | err = devlink_dpipe_match_values_put(skb, entry->match_values, | |
3780 | entry->match_values_count); | |
3781 | if (err) { | |
3782 | nla_nest_cancel(skb, matches_attr); | |
3783 | goto err_match_values_put; | |
3784 | } | |
3785 | nla_nest_end(skb, matches_attr); | |
3786 | ||
ae0be8de MK |
3787 | actions_attr = nla_nest_start_noflag(skb, |
3788 | DEVLINK_ATTR_DPIPE_ENTRY_ACTION_VALUES); | |
1555d204 AS |
3789 | if (!actions_attr) |
3790 | goto nla_put_failure; | |
3791 | ||
3792 | err = devlink_dpipe_action_values_put(skb, entry->action_values, | |
3793 | entry->action_values_count); | |
3794 | if (err) { | |
3795 | nla_nest_cancel(skb, actions_attr); | |
3796 | goto err_action_values_put; | |
3797 | } | |
3798 | nla_nest_end(skb, actions_attr); | |
59bfde01 | 3799 | |
1555d204 | 3800 | nla_nest_end(skb, entry_attr); |
59bfde01 | 3801 | return 0; |
1555d204 AS |
3802 | |
3803 | nla_put_failure: | |
3804 | err = -EMSGSIZE; | |
3805 | err_match_values_put: | |
3806 | err_action_values_put: | |
3807 | nla_nest_cancel(skb, entry_attr); | |
3808 | return err; | |
3809 | } | |
3810 | ||
3811 | static struct devlink_dpipe_table * | |
3812 | devlink_dpipe_table_find(struct list_head *dpipe_tables, | |
2eb51c75 | 3813 | const char *table_name, struct devlink *devlink) |
1555d204 AS |
3814 | { |
3815 | struct devlink_dpipe_table *table; | |
2eb51c75 MB |
3816 | list_for_each_entry_rcu(table, dpipe_tables, list, |
3817 | lockdep_is_held(&devlink->lock)) { | |
1555d204 AS |
3818 | if (!strcmp(table->name, table_name)) |
3819 | return table; | |
3820 | } | |
3821 | return NULL; | |
3822 | } | |
3823 | ||
3824 | int devlink_dpipe_entry_ctx_prepare(struct devlink_dpipe_dump_ctx *dump_ctx) | |
3825 | { | |
3826 | struct devlink *devlink; | |
3827 | int err; | |
3828 | ||
3829 | err = devlink_dpipe_send_and_alloc_skb(&dump_ctx->skb, | |
3830 | dump_ctx->info); | |
3831 | if (err) | |
3832 | return err; | |
3833 | ||
3834 | dump_ctx->hdr = genlmsg_put(dump_ctx->skb, | |
3835 | dump_ctx->info->snd_portid, | |
3836 | dump_ctx->info->snd_seq, | |
3837 | &devlink_nl_family, NLM_F_MULTI, | |
3838 | dump_ctx->cmd); | |
3839 | if (!dump_ctx->hdr) | |
3840 | goto nla_put_failure; | |
3841 | ||
3842 | devlink = dump_ctx->info->user_ptr[0]; | |
3843 | if (devlink_nl_put_handle(dump_ctx->skb, devlink)) | |
3844 | goto nla_put_failure; | |
ae0be8de MK |
3845 | dump_ctx->nest = nla_nest_start_noflag(dump_ctx->skb, |
3846 | DEVLINK_ATTR_DPIPE_ENTRIES); | |
1555d204 AS |
3847 | if (!dump_ctx->nest) |
3848 | goto nla_put_failure; | |
3849 | return 0; | |
3850 | ||
3851 | nla_put_failure: | |
1555d204 AS |
3852 | nlmsg_free(dump_ctx->skb); |
3853 | return -EMSGSIZE; | |
3854 | } | |
3855 | EXPORT_SYMBOL_GPL(devlink_dpipe_entry_ctx_prepare); | |
3856 | ||
3857 | int devlink_dpipe_entry_ctx_append(struct devlink_dpipe_dump_ctx *dump_ctx, | |
3858 | struct devlink_dpipe_entry *entry) | |
3859 | { | |
3860 | return devlink_dpipe_entry_put(dump_ctx->skb, entry); | |
3861 | } | |
3862 | EXPORT_SYMBOL_GPL(devlink_dpipe_entry_ctx_append); | |
3863 | ||
3864 | int devlink_dpipe_entry_ctx_close(struct devlink_dpipe_dump_ctx *dump_ctx) | |
3865 | { | |
3866 | nla_nest_end(dump_ctx->skb, dump_ctx->nest); | |
3867 | genlmsg_end(dump_ctx->skb, dump_ctx->hdr); | |
3868 | return 0; | |
3869 | } | |
3870 | EXPORT_SYMBOL_GPL(devlink_dpipe_entry_ctx_close); | |
3871 | ||
35807324 AS |
3872 | void devlink_dpipe_entry_clear(struct devlink_dpipe_entry *entry) |
3873 | ||
3874 | { | |
3875 | unsigned int value_count, value_index; | |
3876 | struct devlink_dpipe_value *value; | |
3877 | ||
3878 | value = entry->action_values; | |
3879 | value_count = entry->action_values_count; | |
3880 | for (value_index = 0; value_index < value_count; value_index++) { | |
3881 | kfree(value[value_index].value); | |
3882 | kfree(value[value_index].mask); | |
3883 | } | |
3884 | ||
3885 | value = entry->match_values; | |
3886 | value_count = entry->match_values_count; | |
3887 | for (value_index = 0; value_index < value_count; value_index++) { | |
3888 | kfree(value[value_index].value); | |
3889 | kfree(value[value_index].mask); | |
3890 | } | |
3891 | } | |
c52ef04d | 3892 | EXPORT_SYMBOL_GPL(devlink_dpipe_entry_clear); |
35807324 | 3893 | |
1555d204 AS |
3894 | static int devlink_dpipe_entries_fill(struct genl_info *info, |
3895 | enum devlink_command cmd, int flags, | |
3896 | struct devlink_dpipe_table *table) | |
3897 | { | |
3898 | struct devlink_dpipe_dump_ctx dump_ctx; | |
3899 | struct nlmsghdr *nlh; | |
3900 | int err; | |
3901 | ||
3902 | dump_ctx.skb = NULL; | |
3903 | dump_ctx.cmd = cmd; | |
3904 | dump_ctx.info = info; | |
3905 | ||
3906 | err = table->table_ops->entries_dump(table->priv, | |
3907 | table->counters_enabled, | |
3908 | &dump_ctx); | |
3909 | if (err) | |
7fe4d6dc | 3910 | return err; |
1555d204 AS |
3911 | |
3912 | send_done: | |
3913 | nlh = nlmsg_put(dump_ctx.skb, info->snd_portid, info->snd_seq, | |
3914 | NLMSG_DONE, 0, flags | NLM_F_MULTI); | |
3915 | if (!nlh) { | |
3916 | err = devlink_dpipe_send_and_alloc_skb(&dump_ctx.skb, info); | |
3917 | if (err) | |
7fe4d6dc | 3918 | return err; |
1555d204 AS |
3919 | goto send_done; |
3920 | } | |
3921 | return genlmsg_reply(dump_ctx.skb, info); | |
1555d204 AS |
3922 | } |
3923 | ||
3924 | static int devlink_nl_cmd_dpipe_entries_get(struct sk_buff *skb, | |
3925 | struct genl_info *info) | |
3926 | { | |
3927 | struct devlink *devlink = info->user_ptr[0]; | |
3928 | struct devlink_dpipe_table *table; | |
3929 | const char *table_name; | |
3930 | ||
1f7633b5 | 3931 | if (GENL_REQ_ATTR_CHECK(info, DEVLINK_ATTR_DPIPE_TABLE_NAME)) |
1555d204 AS |
3932 | return -EINVAL; |
3933 | ||
3934 | table_name = nla_data(info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME]); | |
3935 | table = devlink_dpipe_table_find(&devlink->dpipe_table_list, | |
2eb51c75 | 3936 | table_name, devlink); |
1555d204 AS |
3937 | if (!table) |
3938 | return -EINVAL; | |
3939 | ||
3940 | if (!table->table_ops->entries_dump) | |
3941 | return -EINVAL; | |
3942 | ||
3943 | return devlink_dpipe_entries_fill(info, DEVLINK_CMD_DPIPE_ENTRIES_GET, | |
3944 | 0, table); | |
3945 | } | |
3946 | ||
3947 | static int devlink_dpipe_fields_put(struct sk_buff *skb, | |
3948 | const struct devlink_dpipe_header *header) | |
3949 | { | |
3950 | struct devlink_dpipe_field *field; | |
3951 | struct nlattr *field_attr; | |
3952 | int i; | |
3953 | ||
3954 | for (i = 0; i < header->fields_count; i++) { | |
3955 | field = &header->fields[i]; | |
ae0be8de MK |
3956 | field_attr = nla_nest_start_noflag(skb, |
3957 | DEVLINK_ATTR_DPIPE_FIELD); | |
1555d204 AS |
3958 | if (!field_attr) |
3959 | return -EMSGSIZE; | |
3960 | if (nla_put_string(skb, DEVLINK_ATTR_DPIPE_FIELD_NAME, field->name) || | |
3961 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_ID, field->id) || | |
3962 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_BITWIDTH, field->bitwidth) || | |
3963 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_MAPPING_TYPE, field->mapping_type)) | |
3964 | goto nla_put_failure; | |
3965 | nla_nest_end(skb, field_attr); | |
3966 | } | |
3967 | return 0; | |
3968 | ||
3969 | nla_put_failure: | |
3970 | nla_nest_cancel(skb, field_attr); | |
3971 | return -EMSGSIZE; | |
3972 | } | |
3973 | ||
3974 | static int devlink_dpipe_header_put(struct sk_buff *skb, | |
3975 | struct devlink_dpipe_header *header) | |
3976 | { | |
3977 | struct nlattr *fields_attr, *header_attr; | |
3978 | int err; | |
3979 | ||
ae0be8de | 3980 | header_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_HEADER); |
cb6bf9cf | 3981 | if (!header_attr) |
1555d204 AS |
3982 | return -EMSGSIZE; |
3983 | ||
3984 | if (nla_put_string(skb, DEVLINK_ATTR_DPIPE_HEADER_NAME, header->name) || | |
3985 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_ID, header->id) || | |
3986 | nla_put_u8(skb, DEVLINK_ATTR_DPIPE_HEADER_GLOBAL, header->global)) | |
3987 | goto nla_put_failure; | |
3988 | ||
ae0be8de MK |
3989 | fields_attr = nla_nest_start_noflag(skb, |
3990 | DEVLINK_ATTR_DPIPE_HEADER_FIELDS); | |
1555d204 AS |
3991 | if (!fields_attr) |
3992 | goto nla_put_failure; | |
3993 | ||
3994 | err = devlink_dpipe_fields_put(skb, header); | |
3995 | if (err) { | |
3996 | nla_nest_cancel(skb, fields_attr); | |
3997 | goto nla_put_failure; | |
3998 | } | |
3999 | nla_nest_end(skb, fields_attr); | |
4000 | nla_nest_end(skb, header_attr); | |
4001 | return 0; | |
4002 | ||
4003 | nla_put_failure: | |
4004 | err = -EMSGSIZE; | |
4005 | nla_nest_cancel(skb, header_attr); | |
4006 | return err; | |
4007 | } | |
4008 | ||
4009 | static int devlink_dpipe_headers_fill(struct genl_info *info, | |
4010 | enum devlink_command cmd, int flags, | |
4011 | struct devlink_dpipe_headers * | |
4012 | dpipe_headers) | |
4013 | { | |
4014 | struct devlink *devlink = info->user_ptr[0]; | |
4015 | struct nlattr *headers_attr; | |
4016 | struct sk_buff *skb = NULL; | |
4017 | struct nlmsghdr *nlh; | |
4018 | void *hdr; | |
4019 | int i, j; | |
4020 | int err; | |
4021 | ||
4022 | i = 0; | |
4023 | start_again: | |
4024 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); | |
4025 | if (err) | |
4026 | return err; | |
4027 | ||
4028 | hdr = genlmsg_put(skb, info->snd_portid, info->snd_seq, | |
4029 | &devlink_nl_family, NLM_F_MULTI, cmd); | |
6044bd4a HY |
4030 | if (!hdr) { |
4031 | nlmsg_free(skb); | |
1555d204 | 4032 | return -EMSGSIZE; |
6044bd4a | 4033 | } |
1555d204 AS |
4034 | |
4035 | if (devlink_nl_put_handle(skb, devlink)) | |
4036 | goto nla_put_failure; | |
ae0be8de | 4037 | headers_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_HEADERS); |
1555d204 AS |
4038 | if (!headers_attr) |
4039 | goto nla_put_failure; | |
4040 | ||
4041 | j = 0; | |
4042 | for (; i < dpipe_headers->headers_count; i++) { | |
4043 | err = devlink_dpipe_header_put(skb, dpipe_headers->headers[i]); | |
4044 | if (err) { | |
4045 | if (!j) | |
4046 | goto err_table_put; | |
4047 | break; | |
4048 | } | |
4049 | j++; | |
4050 | } | |
4051 | nla_nest_end(skb, headers_attr); | |
4052 | genlmsg_end(skb, hdr); | |
4053 | if (i != dpipe_headers->headers_count) | |
4054 | goto start_again; | |
4055 | ||
4056 | send_done: | |
4057 | nlh = nlmsg_put(skb, info->snd_portid, info->snd_seq, | |
4058 | NLMSG_DONE, 0, flags | NLM_F_MULTI); | |
4059 | if (!nlh) { | |
4060 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); | |
4061 | if (err) | |
7fe4d6dc | 4062 | return err; |
1555d204 AS |
4063 | goto send_done; |
4064 | } | |
4065 | return genlmsg_reply(skb, info); | |
4066 | ||
4067 | nla_put_failure: | |
4068 | err = -EMSGSIZE; | |
4069 | err_table_put: | |
1555d204 AS |
4070 | nlmsg_free(skb); |
4071 | return err; | |
4072 | } | |
4073 | ||
4074 | static int devlink_nl_cmd_dpipe_headers_get(struct sk_buff *skb, | |
4075 | struct genl_info *info) | |
4076 | { | |
4077 | struct devlink *devlink = info->user_ptr[0]; | |
4078 | ||
4079 | if (!devlink->dpipe_headers) | |
4080 | return -EOPNOTSUPP; | |
4081 | return devlink_dpipe_headers_fill(info, DEVLINK_CMD_DPIPE_HEADERS_GET, | |
4082 | 0, devlink->dpipe_headers); | |
4083 | } | |
4084 | ||
4085 | static int devlink_dpipe_table_counters_set(struct devlink *devlink, | |
4086 | const char *table_name, | |
4087 | bool enable) | |
4088 | { | |
4089 | struct devlink_dpipe_table *table; | |
4090 | ||
4091 | table = devlink_dpipe_table_find(&devlink->dpipe_table_list, | |
2eb51c75 | 4092 | table_name, devlink); |
1555d204 AS |
4093 | if (!table) |
4094 | return -EINVAL; | |
4095 | ||
4096 | if (table->counter_control_extern) | |
4097 | return -EOPNOTSUPP; | |
4098 | ||
4099 | if (!(table->counters_enabled ^ enable)) | |
4100 | return 0; | |
4101 | ||
4102 | table->counters_enabled = enable; | |
4103 | if (table->table_ops->counters_set_update) | |
4104 | table->table_ops->counters_set_update(table->priv, enable); | |
4105 | return 0; | |
4106 | } | |
4107 | ||
4108 | static int devlink_nl_cmd_dpipe_table_counters_set(struct sk_buff *skb, | |
4109 | struct genl_info *info) | |
4110 | { | |
4111 | struct devlink *devlink = info->user_ptr[0]; | |
4112 | const char *table_name; | |
4113 | bool counters_enable; | |
4114 | ||
1f7633b5 JK |
4115 | if (GENL_REQ_ATTR_CHECK(info, DEVLINK_ATTR_DPIPE_TABLE_NAME) || |
4116 | GENL_REQ_ATTR_CHECK(info, | |
4117 | DEVLINK_ATTR_DPIPE_TABLE_COUNTERS_ENABLED)) | |
1555d204 AS |
4118 | return -EINVAL; |
4119 | ||
4120 | table_name = nla_data(info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME]); | |
4121 | counters_enable = !!nla_get_u8(info->attrs[DEVLINK_ATTR_DPIPE_TABLE_COUNTERS_ENABLED]); | |
4122 | ||
4123 | return devlink_dpipe_table_counters_set(devlink, table_name, | |
4124 | counters_enable); | |
08f4b591 OG |
4125 | } |
4126 | ||
43dd7512 | 4127 | static struct devlink_resource * |
d9f9b9a4 AS |
4128 | devlink_resource_find(struct devlink *devlink, |
4129 | struct devlink_resource *resource, u64 resource_id) | |
4130 | { | |
4131 | struct list_head *resource_list; | |
4132 | ||
4133 | if (resource) | |
4134 | resource_list = &resource->resource_list; | |
4135 | else | |
4136 | resource_list = &devlink->resource_list; | |
4137 | ||
4138 | list_for_each_entry(resource, resource_list, list) { | |
4139 | struct devlink_resource *child_resource; | |
4140 | ||
4141 | if (resource->id == resource_id) | |
4142 | return resource; | |
4143 | ||
4144 | child_resource = devlink_resource_find(devlink, resource, | |
4145 | resource_id); | |
4146 | if (child_resource) | |
4147 | return child_resource; | |
4148 | } | |
4149 | return NULL; | |
4150 | } | |
4151 | ||
43dd7512 WY |
4152 | static void |
4153 | devlink_resource_validate_children(struct devlink_resource *resource) | |
d9f9b9a4 AS |
4154 | { |
4155 | struct devlink_resource *child_resource; | |
4156 | bool size_valid = true; | |
4157 | u64 parts_size = 0; | |
4158 | ||
4159 | if (list_empty(&resource->resource_list)) | |
4160 | goto out; | |
4161 | ||
4162 | list_for_each_entry(child_resource, &resource->resource_list, list) | |
4163 | parts_size += child_resource->size_new; | |
4164 | ||
b9d17175 | 4165 | if (parts_size > resource->size_new) |
d9f9b9a4 AS |
4166 | size_valid = false; |
4167 | out: | |
4168 | resource->size_valid = size_valid; | |
4169 | } | |
4170 | ||
cc944ead AS |
4171 | static int |
4172 | devlink_resource_validate_size(struct devlink_resource *resource, u64 size, | |
4173 | struct netlink_ext_ack *extack) | |
4174 | { | |
4175 | u64 reminder; | |
4176 | int err = 0; | |
4177 | ||
0f3e9c97 | 4178 | if (size > resource->size_params.size_max) { |
cc944ead AS |
4179 | NL_SET_ERR_MSG_MOD(extack, "Size larger than maximum"); |
4180 | err = -EINVAL; | |
4181 | } | |
4182 | ||
0f3e9c97 | 4183 | if (size < resource->size_params.size_min) { |
cc944ead AS |
4184 | NL_SET_ERR_MSG_MOD(extack, "Size smaller than minimum"); |
4185 | err = -EINVAL; | |
4186 | } | |
4187 | ||
0f3e9c97 | 4188 | div64_u64_rem(size, resource->size_params.size_granularity, &reminder); |
cc944ead AS |
4189 | if (reminder) { |
4190 | NL_SET_ERR_MSG_MOD(extack, "Wrong granularity"); | |
4191 | err = -EINVAL; | |
4192 | } | |
4193 | ||
4194 | return err; | |
4195 | } | |
4196 | ||
d9f9b9a4 AS |
4197 | static int devlink_nl_cmd_resource_set(struct sk_buff *skb, |
4198 | struct genl_info *info) | |
4199 | { | |
4200 | struct devlink *devlink = info->user_ptr[0]; | |
4201 | struct devlink_resource *resource; | |
4202 | u64 resource_id; | |
4203 | u64 size; | |
4204 | int err; | |
4205 | ||
1f7633b5 JK |
4206 | if (GENL_REQ_ATTR_CHECK(info, DEVLINK_ATTR_RESOURCE_ID) || |
4207 | GENL_REQ_ATTR_CHECK(info, DEVLINK_ATTR_RESOURCE_SIZE)) | |
d9f9b9a4 AS |
4208 | return -EINVAL; |
4209 | resource_id = nla_get_u64(info->attrs[DEVLINK_ATTR_RESOURCE_ID]); | |
4210 | ||
4211 | resource = devlink_resource_find(devlink, NULL, resource_id); | |
4212 | if (!resource) | |
4213 | return -EINVAL; | |
4214 | ||
d9f9b9a4 | 4215 | size = nla_get_u64(info->attrs[DEVLINK_ATTR_RESOURCE_SIZE]); |
cc944ead | 4216 | err = devlink_resource_validate_size(resource, size, info->extack); |
d9f9b9a4 AS |
4217 | if (err) |
4218 | return err; | |
4219 | ||
4220 | resource->size_new = size; | |
4221 | devlink_resource_validate_children(resource); | |
4222 | if (resource->parent) | |
4223 | devlink_resource_validate_children(resource->parent); | |
4224 | return 0; | |
4225 | } | |
4226 | ||
3d18e4f1 | 4227 | static int |
d9f9b9a4 AS |
4228 | devlink_resource_size_params_put(struct devlink_resource *resource, |
4229 | struct sk_buff *skb) | |
4230 | { | |
4231 | struct devlink_resource_size_params *size_params; | |
4232 | ||
77d27096 | 4233 | size_params = &resource->size_params; |
3d18e4f1 AS |
4234 | if (nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE_GRAN, |
4235 | size_params->size_granularity, DEVLINK_ATTR_PAD) || | |
4236 | nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE_MAX, | |
4237 | size_params->size_max, DEVLINK_ATTR_PAD) || | |
4238 | nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE_MIN, | |
4239 | size_params->size_min, DEVLINK_ATTR_PAD) || | |
4240 | nla_put_u8(skb, DEVLINK_ATTR_RESOURCE_UNIT, size_params->unit)) | |
4241 | return -EMSGSIZE; | |
4242 | return 0; | |
d9f9b9a4 AS |
4243 | } |
4244 | ||
fc56be47 JP |
4245 | static int devlink_resource_occ_put(struct devlink_resource *resource, |
4246 | struct sk_buff *skb) | |
4247 | { | |
4248 | if (!resource->occ_get) | |
4249 | return 0; | |
4250 | return nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_OCC, | |
4251 | resource->occ_get(resource->occ_get_priv), | |
4252 | DEVLINK_ATTR_PAD); | |
4253 | } | |
4254 | ||
d9f9b9a4 AS |
4255 | static int devlink_resource_put(struct devlink *devlink, struct sk_buff *skb, |
4256 | struct devlink_resource *resource) | |
4257 | { | |
4258 | struct devlink_resource *child_resource; | |
4259 | struct nlattr *child_resource_attr; | |
4260 | struct nlattr *resource_attr; | |
4261 | ||
ae0be8de | 4262 | resource_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_RESOURCE); |
d9f9b9a4 AS |
4263 | if (!resource_attr) |
4264 | return -EMSGSIZE; | |
4265 | ||
4266 | if (nla_put_string(skb, DEVLINK_ATTR_RESOURCE_NAME, resource->name) || | |
4267 | nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE, resource->size, | |
4268 | DEVLINK_ATTR_PAD) || | |
4269 | nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_ID, resource->id, | |
4270 | DEVLINK_ATTR_PAD)) | |
4271 | goto nla_put_failure; | |
4272 | if (resource->size != resource->size_new) | |
4273 | nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE_NEW, | |
4274 | resource->size_new, DEVLINK_ATTR_PAD); | |
fc56be47 JP |
4275 | if (devlink_resource_occ_put(resource, skb)) |
4276 | goto nla_put_failure; | |
3d18e4f1 AS |
4277 | if (devlink_resource_size_params_put(resource, skb)) |
4278 | goto nla_put_failure; | |
d9f9b9a4 AS |
4279 | if (list_empty(&resource->resource_list)) |
4280 | goto out; | |
4281 | ||
4282 | if (nla_put_u8(skb, DEVLINK_ATTR_RESOURCE_SIZE_VALID, | |
4283 | resource->size_valid)) | |
4284 | goto nla_put_failure; | |
4285 | ||
ae0be8de MK |
4286 | child_resource_attr = nla_nest_start_noflag(skb, |
4287 | DEVLINK_ATTR_RESOURCE_LIST); | |
d9f9b9a4 AS |
4288 | if (!child_resource_attr) |
4289 | goto nla_put_failure; | |
4290 | ||
4291 | list_for_each_entry(child_resource, &resource->resource_list, list) { | |
4292 | if (devlink_resource_put(devlink, skb, child_resource)) | |
4293 | goto resource_put_failure; | |
4294 | } | |
4295 | ||
4296 | nla_nest_end(skb, child_resource_attr); | |
4297 | out: | |
4298 | nla_nest_end(skb, resource_attr); | |
4299 | return 0; | |
4300 | ||
4301 | resource_put_failure: | |
4302 | nla_nest_cancel(skb, child_resource_attr); | |
4303 | nla_put_failure: | |
4304 | nla_nest_cancel(skb, resource_attr); | |
4305 | return -EMSGSIZE; | |
4306 | } | |
4307 | ||
4308 | static int devlink_resource_fill(struct genl_info *info, | |
4309 | enum devlink_command cmd, int flags) | |
4310 | { | |
4311 | struct devlink *devlink = info->user_ptr[0]; | |
4312 | struct devlink_resource *resource; | |
4313 | struct nlattr *resources_attr; | |
4314 | struct sk_buff *skb = NULL; | |
4315 | struct nlmsghdr *nlh; | |
4316 | bool incomplete; | |
4317 | void *hdr; | |
4318 | int i; | |
4319 | int err; | |
4320 | ||
4321 | resource = list_first_entry(&devlink->resource_list, | |
4322 | struct devlink_resource, list); | |
4323 | start_again: | |
4324 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); | |
4325 | if (err) | |
4326 | return err; | |
4327 | ||
4328 | hdr = genlmsg_put(skb, info->snd_portid, info->snd_seq, | |
4329 | &devlink_nl_family, NLM_F_MULTI, cmd); | |
4330 | if (!hdr) { | |
4331 | nlmsg_free(skb); | |
4332 | return -EMSGSIZE; | |
4333 | } | |
4334 | ||
4335 | if (devlink_nl_put_handle(skb, devlink)) | |
4336 | goto nla_put_failure; | |
4337 | ||
ae0be8de MK |
4338 | resources_attr = nla_nest_start_noflag(skb, |
4339 | DEVLINK_ATTR_RESOURCE_LIST); | |
d9f9b9a4 AS |
4340 | if (!resources_attr) |
4341 | goto nla_put_failure; | |
4342 | ||
4343 | incomplete = false; | |
4344 | i = 0; | |
4345 | list_for_each_entry_from(resource, &devlink->resource_list, list) { | |
4346 | err = devlink_resource_put(devlink, skb, resource); | |
4347 | if (err) { | |
4348 | if (!i) | |
4349 | goto err_resource_put; | |
4350 | incomplete = true; | |
4351 | break; | |
4352 | } | |
4353 | i++; | |
4354 | } | |
4355 | nla_nest_end(skb, resources_attr); | |
4356 | genlmsg_end(skb, hdr); | |
4357 | if (incomplete) | |
4358 | goto start_again; | |
4359 | send_done: | |
4360 | nlh = nlmsg_put(skb, info->snd_portid, info->snd_seq, | |
4361 | NLMSG_DONE, 0, flags | NLM_F_MULTI); | |
4362 | if (!nlh) { | |
4363 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); | |
4364 | if (err) | |
83fe9a96 | 4365 | return err; |
d9f9b9a4 AS |
4366 | goto send_done; |
4367 | } | |
4368 | return genlmsg_reply(skb, info); | |
4369 | ||
4370 | nla_put_failure: | |
4371 | err = -EMSGSIZE; | |
4372 | err_resource_put: | |
d9f9b9a4 AS |
4373 | nlmsg_free(skb); |
4374 | return err; | |
4375 | } | |
4376 | ||
4377 | static int devlink_nl_cmd_resource_dump(struct sk_buff *skb, | |
4378 | struct genl_info *info) | |
4379 | { | |
4380 | struct devlink *devlink = info->user_ptr[0]; | |
4381 | ||
4382 | if (list_empty(&devlink->resource_list)) | |
4383 | return -EOPNOTSUPP; | |
4384 | ||
4385 | return devlink_resource_fill(info, DEVLINK_CMD_RESOURCE_DUMP, 0); | |
4386 | } | |
4387 | ||
2d8dc5bb AS |
4388 | static int |
4389 | devlink_resources_validate(struct devlink *devlink, | |
4390 | struct devlink_resource *resource, | |
4391 | struct genl_info *info) | |
4392 | { | |
4393 | struct list_head *resource_list; | |
4394 | int err = 0; | |
4395 | ||
4396 | if (resource) | |
4397 | resource_list = &resource->resource_list; | |
4398 | else | |
4399 | resource_list = &devlink->resource_list; | |
4400 | ||
4401 | list_for_each_entry(resource, resource_list, list) { | |
4402 | if (!resource->size_valid) | |
4403 | return -EINVAL; | |
4404 | err = devlink_resources_validate(devlink, resource, info); | |
4405 | if (err) | |
4406 | return err; | |
4407 | } | |
4408 | return err; | |
4409 | } | |
4410 | ||
070c63f2 JP |
4411 | static struct net *devlink_netns_get(struct sk_buff *skb, |
4412 | struct genl_info *info) | |
4413 | { | |
4414 | struct nlattr *netns_pid_attr = info->attrs[DEVLINK_ATTR_NETNS_PID]; | |
4415 | struct nlattr *netns_fd_attr = info->attrs[DEVLINK_ATTR_NETNS_FD]; | |
4416 | struct nlattr *netns_id_attr = info->attrs[DEVLINK_ATTR_NETNS_ID]; | |
4417 | struct net *net; | |
4418 | ||
4419 | if (!!netns_pid_attr + !!netns_fd_attr + !!netns_id_attr > 1) { | |
054eae82 | 4420 | NL_SET_ERR_MSG_MOD(info->extack, "multiple netns identifying attributes specified"); |
070c63f2 JP |
4421 | return ERR_PTR(-EINVAL); |
4422 | } | |
4423 | ||
4424 | if (netns_pid_attr) { | |
4425 | net = get_net_ns_by_pid(nla_get_u32(netns_pid_attr)); | |
4426 | } else if (netns_fd_attr) { | |
4427 | net = get_net_ns_by_fd(nla_get_u32(netns_fd_attr)); | |
4428 | } else if (netns_id_attr) { | |
4429 | net = get_net_ns_by_id(sock_net(skb->sk), | |
4430 | nla_get_u32(netns_id_attr)); | |
4431 | if (!net) | |
4432 | net = ERR_PTR(-EINVAL); | |
4433 | } else { | |
4434 | WARN_ON(1); | |
4435 | net = ERR_PTR(-EINVAL); | |
4436 | } | |
4437 | if (IS_ERR(net)) { | |
054eae82 | 4438 | NL_SET_ERR_MSG_MOD(info->extack, "Unknown network namespace"); |
070c63f2 JP |
4439 | return ERR_PTR(-EINVAL); |
4440 | } | |
4441 | if (!netlink_ns_capable(skb, net->user_ns, CAP_NET_ADMIN)) { | |
4442 | put_net(net); | |
4443 | return ERR_PTR(-EPERM); | |
4444 | } | |
4445 | return net; | |
4446 | } | |
4447 | ||
4448 | static void devlink_param_notify(struct devlink *devlink, | |
4449 | unsigned int port_index, | |
4450 | struct devlink_param_item *param_item, | |
4451 | enum devlink_command cmd); | |
4452 | ||
05a7f4a8 LR |
4453 | static void devlink_ns_change_notify(struct devlink *devlink, |
4454 | struct net *dest_net, struct net *curr_net, | |
4455 | bool new) | |
070c63f2 JP |
4456 | { |
4457 | struct devlink_param_item *param_item; | |
05a7f4a8 | 4458 | enum devlink_command cmd; |
070c63f2 JP |
4459 | |
4460 | /* Userspace needs to be notified about devlink objects | |
4461 | * removed from original and entering new network namespace. | |
4462 | * The rest of the devlink objects are re-created during | |
4463 | * reload process so the notifications are generated separatelly. | |
4464 | */ | |
4465 | ||
05a7f4a8 LR |
4466 | if (!dest_net || net_eq(dest_net, curr_net)) |
4467 | return; | |
070c63f2 | 4468 | |
05a7f4a8 LR |
4469 | if (new) |
4470 | devlink_notify(devlink, DEVLINK_CMD_NEW); | |
070c63f2 | 4471 | |
05a7f4a8 | 4472 | cmd = new ? DEVLINK_CMD_PARAM_NEW : DEVLINK_CMD_PARAM_DEL; |
070c63f2 | 4473 | list_for_each_entry(param_item, &devlink->param_list, list) |
05a7f4a8 LR |
4474 | devlink_param_notify(devlink, 0, param_item, cmd); |
4475 | ||
4476 | if (!new) | |
4477 | devlink_notify(devlink, DEVLINK_CMD_DEL); | |
070c63f2 JP |
4478 | } |
4479 | ||
69d56e0e | 4480 | static bool devlink_reload_supported(const struct devlink_ops *ops) |
97691069 | 4481 | { |
69d56e0e | 4482 | return ops->reload_down && ops->reload_up; |
97691069 JP |
4483 | } |
4484 | ||
2670ac26 JP |
4485 | static void devlink_reload_failed_set(struct devlink *devlink, |
4486 | bool reload_failed) | |
4487 | { | |
4488 | if (devlink->reload_failed == reload_failed) | |
4489 | return; | |
4490 | devlink->reload_failed = reload_failed; | |
4491 | devlink_notify(devlink, DEVLINK_CMD_NEW); | |
4492 | } | |
4493 | ||
4494 | bool devlink_is_reload_failed(const struct devlink *devlink) | |
4495 | { | |
4496 | return devlink->reload_failed; | |
4497 | } | |
4498 | EXPORT_SYMBOL_GPL(devlink_is_reload_failed); | |
4499 | ||
a254c264 MS |
4500 | static void |
4501 | __devlink_reload_stats_update(struct devlink *devlink, u32 *reload_stats, | |
4502 | enum devlink_reload_limit limit, u32 actions_performed) | |
4503 | { | |
4504 | unsigned long actions = actions_performed; | |
4505 | int stat_idx; | |
4506 | int action; | |
4507 | ||
4508 | for_each_set_bit(action, &actions, __DEVLINK_RELOAD_ACTION_MAX) { | |
4509 | stat_idx = limit * __DEVLINK_RELOAD_ACTION_MAX + action; | |
4510 | reload_stats[stat_idx]++; | |
4511 | } | |
4512 | devlink_notify(devlink, DEVLINK_CMD_NEW); | |
4513 | } | |
4514 | ||
4515 | static void | |
4516 | devlink_reload_stats_update(struct devlink *devlink, enum devlink_reload_limit limit, | |
4517 | u32 actions_performed) | |
4518 | { | |
4519 | __devlink_reload_stats_update(devlink, devlink->stats.reload_stats, limit, | |
4520 | actions_performed); | |
4521 | } | |
4522 | ||
77069ba2 MS |
4523 | /** |
4524 | * devlink_remote_reload_actions_performed - Update devlink on reload actions | |
4525 | * performed which are not a direct result of devlink reload call. | |
4526 | * | |
4527 | * This should be called by a driver after performing reload actions in case it was not | |
4528 | * a result of devlink reload call. For example fw_activate was performed as a result | |
4529 | * of devlink reload triggered fw_activate on another host. | |
4530 | * The motivation for this function is to keep data on reload actions performed on this | |
4531 | * function whether it was done due to direct devlink reload call or not. | |
4532 | * | |
4533 | * @devlink: devlink | |
4534 | * @limit: reload limit | |
4535 | * @actions_performed: bitmask of actions performed | |
4536 | */ | |
4537 | void devlink_remote_reload_actions_performed(struct devlink *devlink, | |
4538 | enum devlink_reload_limit limit, | |
4539 | u32 actions_performed) | |
4540 | { | |
4541 | if (WARN_ON(!actions_performed || | |
4542 | actions_performed & BIT(DEVLINK_RELOAD_ACTION_UNSPEC) || | |
4543 | actions_performed >= BIT(__DEVLINK_RELOAD_ACTION_MAX) || | |
4544 | limit > DEVLINK_RELOAD_LIMIT_MAX)) | |
4545 | return; | |
4546 | ||
4547 | __devlink_reload_stats_update(devlink, devlink->stats.remote_reload_stats, limit, | |
4548 | actions_performed); | |
4549 | } | |
4550 | EXPORT_SYMBOL_GPL(devlink_remote_reload_actions_performed); | |
4551 | ||
070c63f2 | 4552 | static int devlink_reload(struct devlink *devlink, struct net *dest_net, |
dc64cc7c MS |
4553 | enum devlink_reload_action action, enum devlink_reload_limit limit, |
4554 | u32 *actions_performed, struct netlink_ext_ack *extack) | |
070c63f2 | 4555 | { |
77069ba2 | 4556 | u32 remote_reload_stats[DEVLINK_RELOAD_STATS_ARRAY_SIZE]; |
05a7f4a8 | 4557 | struct net *curr_net; |
070c63f2 JP |
4558 | int err; |
4559 | ||
77069ba2 MS |
4560 | memcpy(remote_reload_stats, devlink->stats.remote_reload_stats, |
4561 | sizeof(remote_reload_stats)); | |
05a7f4a8 LR |
4562 | |
4563 | curr_net = devlink_net(devlink); | |
4564 | devlink_ns_change_notify(devlink, dest_net, curr_net, false); | |
dc64cc7c | 4565 | err = devlink->ops->reload_down(devlink, !!dest_net, action, limit, extack); |
070c63f2 JP |
4566 | if (err) |
4567 | return err; | |
4568 | ||
15feb56e JP |
4569 | if (dest_net && !net_eq(dest_net, curr_net)) { |
4570 | move_netdevice_notifier_net(curr_net, dest_net, | |
4571 | &devlink->netdevice_nb); | |
26713455 | 4572 | write_pnet(&devlink->_net, dest_net); |
15feb56e | 4573 | } |
070c63f2 | 4574 | |
dc64cc7c | 4575 | err = devlink->ops->reload_up(devlink, action, limit, actions_performed, extack); |
070c63f2 | 4576 | devlink_reload_failed_set(devlink, !!err); |
ccdf0721 MS |
4577 | if (err) |
4578 | return err; | |
4579 | ||
05a7f4a8 | 4580 | devlink_ns_change_notify(devlink, dest_net, curr_net, true); |
ccdf0721 | 4581 | WARN_ON(!(*actions_performed & BIT(action))); |
77069ba2 MS |
4582 | /* Catch driver on updating the remote action within devlink reload */ |
4583 | WARN_ON(memcmp(remote_reload_stats, devlink->stats.remote_reload_stats, | |
4584 | sizeof(remote_reload_stats))); | |
a254c264 | 4585 | devlink_reload_stats_update(devlink, limit, *actions_performed); |
ccdf0721 MS |
4586 | return 0; |
4587 | } | |
4588 | ||
4589 | static int | |
4590 | devlink_nl_reload_actions_performed_snd(struct devlink *devlink, u32 actions_performed, | |
4591 | enum devlink_command cmd, struct genl_info *info) | |
4592 | { | |
4593 | struct sk_buff *msg; | |
4594 | void *hdr; | |
4595 | ||
4596 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
4597 | if (!msg) | |
4598 | return -ENOMEM; | |
4599 | ||
4600 | hdr = genlmsg_put(msg, info->snd_portid, info->snd_seq, &devlink_nl_family, 0, cmd); | |
4601 | if (!hdr) | |
4602 | goto free_msg; | |
4603 | ||
4604 | if (devlink_nl_put_handle(msg, devlink)) | |
4605 | goto nla_put_failure; | |
4606 | ||
4607 | if (nla_put_bitfield32(msg, DEVLINK_ATTR_RELOAD_ACTIONS_PERFORMED, actions_performed, | |
4608 | actions_performed)) | |
4609 | goto nla_put_failure; | |
4610 | genlmsg_end(msg, hdr); | |
4611 | ||
4612 | return genlmsg_reply(msg, info); | |
4613 | ||
4614 | nla_put_failure: | |
4615 | genlmsg_cancel(msg, hdr); | |
4616 | free_msg: | |
4617 | nlmsg_free(msg); | |
4618 | return -EMSGSIZE; | |
070c63f2 JP |
4619 | } |
4620 | ||
2d8dc5bb AS |
4621 | static int devlink_nl_cmd_reload(struct sk_buff *skb, struct genl_info *info) |
4622 | { | |
4623 | struct devlink *devlink = info->user_ptr[0]; | |
ccdf0721 | 4624 | enum devlink_reload_action action; |
dc64cc7c | 4625 | enum devlink_reload_limit limit; |
070c63f2 | 4626 | struct net *dest_net = NULL; |
ccdf0721 | 4627 | u32 actions_performed; |
2d8dc5bb AS |
4628 | int err; |
4629 | ||
82465bec | 4630 | if (!(devlink->features & DEVLINK_F_RELOAD)) |
2d8dc5bb AS |
4631 | return -EOPNOTSUPP; |
4632 | ||
4633 | err = devlink_resources_validate(devlink, NULL, info); | |
4634 | if (err) { | |
4635 | NL_SET_ERR_MSG_MOD(info->extack, "resources size validation failed"); | |
4636 | return err; | |
4637 | } | |
070c63f2 | 4638 | |
ccdf0721 MS |
4639 | if (info->attrs[DEVLINK_ATTR_RELOAD_ACTION]) |
4640 | action = nla_get_u8(info->attrs[DEVLINK_ATTR_RELOAD_ACTION]); | |
4641 | else | |
4642 | action = DEVLINK_RELOAD_ACTION_DRIVER_REINIT; | |
4643 | ||
4644 | if (!devlink_reload_action_is_supported(devlink, action)) { | |
4645 | NL_SET_ERR_MSG_MOD(info->extack, | |
4646 | "Requested reload action is not supported by the driver"); | |
4647 | return -EOPNOTSUPP; | |
4648 | } | |
4649 | ||
dc64cc7c MS |
4650 | limit = DEVLINK_RELOAD_LIMIT_UNSPEC; |
4651 | if (info->attrs[DEVLINK_ATTR_RELOAD_LIMITS]) { | |
4652 | struct nla_bitfield32 limits; | |
4653 | u32 limits_selected; | |
4654 | ||
4655 | limits = nla_get_bitfield32(info->attrs[DEVLINK_ATTR_RELOAD_LIMITS]); | |
4656 | limits_selected = limits.value & limits.selector; | |
4657 | if (!limits_selected) { | |
4658 | NL_SET_ERR_MSG_MOD(info->extack, "Invalid limit selected"); | |
4659 | return -EINVAL; | |
4660 | } | |
4661 | for (limit = 0 ; limit <= DEVLINK_RELOAD_LIMIT_MAX ; limit++) | |
4662 | if (limits_selected & BIT(limit)) | |
4663 | break; | |
4664 | /* UAPI enables multiselection, but currently it is not used */ | |
4665 | if (limits_selected != BIT(limit)) { | |
4666 | NL_SET_ERR_MSG_MOD(info->extack, | |
4667 | "Multiselection of limit is not supported"); | |
4668 | return -EOPNOTSUPP; | |
4669 | } | |
4670 | if (!devlink_reload_limit_is_supported(devlink, limit)) { | |
4671 | NL_SET_ERR_MSG_MOD(info->extack, | |
4672 | "Requested limit is not supported by the driver"); | |
4673 | return -EOPNOTSUPP; | |
4674 | } | |
4675 | if (devlink_reload_combination_is_invalid(action, limit)) { | |
4676 | NL_SET_ERR_MSG_MOD(info->extack, | |
4677 | "Requested limit is invalid for this action"); | |
4678 | return -EINVAL; | |
4679 | } | |
4680 | } | |
4dbb0dad ED |
4681 | if (info->attrs[DEVLINK_ATTR_NETNS_PID] || |
4682 | info->attrs[DEVLINK_ATTR_NETNS_FD] || | |
4683 | info->attrs[DEVLINK_ATTR_NETNS_ID]) { | |
4684 | dest_net = devlink_netns_get(skb, info); | |
4685 | if (IS_ERR(dest_net)) | |
4686 | return PTR_ERR(dest_net); | |
4687 | } | |
4688 | ||
dc64cc7c | 4689 | err = devlink_reload(devlink, dest_net, action, limit, &actions_performed, info->extack); |
070c63f2 JP |
4690 | |
4691 | if (dest_net) | |
4692 | put_net(dest_net); | |
4693 | ||
ccdf0721 MS |
4694 | if (err) |
4695 | return err; | |
4696 | /* For backward compatibility generate reply only if attributes used by user */ | |
dc64cc7c | 4697 | if (!info->attrs[DEVLINK_ATTR_RELOAD_ACTION] && !info->attrs[DEVLINK_ATTR_RELOAD_LIMITS]) |
ccdf0721 MS |
4698 | return 0; |
4699 | ||
4700 | return devlink_nl_reload_actions_performed_snd(devlink, actions_performed, | |
4701 | DEVLINK_CMD_RELOAD, info); | |
2d8dc5bb AS |
4702 | } |
4703 | ||
191ed202 JP |
4704 | static int devlink_nl_flash_update_fill(struct sk_buff *msg, |
4705 | struct devlink *devlink, | |
4706 | enum devlink_command cmd, | |
6700acc5 | 4707 | struct devlink_flash_notify *params) |
191ed202 JP |
4708 | { |
4709 | void *hdr; | |
4710 | ||
4711 | hdr = genlmsg_put(msg, 0, 0, &devlink_nl_family, 0, cmd); | |
4712 | if (!hdr) | |
4713 | return -EMSGSIZE; | |
4714 | ||
4715 | if (devlink_nl_put_handle(msg, devlink)) | |
4716 | goto nla_put_failure; | |
4717 | ||
4718 | if (cmd != DEVLINK_CMD_FLASH_UPDATE_STATUS) | |
4719 | goto out; | |
4720 | ||
6700acc5 | 4721 | if (params->status_msg && |
191ed202 | 4722 | nla_put_string(msg, DEVLINK_ATTR_FLASH_UPDATE_STATUS_MSG, |
6700acc5 | 4723 | params->status_msg)) |
191ed202 | 4724 | goto nla_put_failure; |
6700acc5 | 4725 | if (params->component && |
191ed202 | 4726 | nla_put_string(msg, DEVLINK_ATTR_FLASH_UPDATE_COMPONENT, |
6700acc5 | 4727 | params->component)) |
191ed202 JP |
4728 | goto nla_put_failure; |
4729 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_FLASH_UPDATE_STATUS_DONE, | |
6700acc5 | 4730 | params->done, DEVLINK_ATTR_PAD)) |
191ed202 JP |
4731 | goto nla_put_failure; |
4732 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_FLASH_UPDATE_STATUS_TOTAL, | |
6700acc5 | 4733 | params->total, DEVLINK_ATTR_PAD)) |
191ed202 | 4734 | goto nla_put_failure; |
f92970c6 | 4735 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_FLASH_UPDATE_STATUS_TIMEOUT, |
6700acc5 | 4736 | params->timeout, DEVLINK_ATTR_PAD)) |
f92970c6 | 4737 | goto nla_put_failure; |
191ed202 JP |
4738 | |
4739 | out: | |
4740 | genlmsg_end(msg, hdr); | |
4741 | return 0; | |
4742 | ||
4743 | nla_put_failure: | |
4744 | genlmsg_cancel(msg, hdr); | |
4745 | return -EMSGSIZE; | |
4746 | } | |
4747 | ||
4748 | static void __devlink_flash_update_notify(struct devlink *devlink, | |
4749 | enum devlink_command cmd, | |
6700acc5 | 4750 | struct devlink_flash_notify *params) |
191ed202 JP |
4751 | { |
4752 | struct sk_buff *msg; | |
4753 | int err; | |
4754 | ||
4755 | WARN_ON(cmd != DEVLINK_CMD_FLASH_UPDATE && | |
4756 | cmd != DEVLINK_CMD_FLASH_UPDATE_END && | |
4757 | cmd != DEVLINK_CMD_FLASH_UPDATE_STATUS); | |
fec1faf2 LR |
4758 | |
4759 | if (!xa_get_mark(&devlinks, devlink->index, DEVLINK_REGISTERED)) | |
4760 | return; | |
191ed202 JP |
4761 | |
4762 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
4763 | if (!msg) | |
4764 | return; | |
4765 | ||
6700acc5 | 4766 | err = devlink_nl_flash_update_fill(msg, devlink, cmd, params); |
191ed202 JP |
4767 | if (err) |
4768 | goto out_free_msg; | |
4769 | ||
4770 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), | |
4771 | msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
4772 | return; | |
4773 | ||
4774 | out_free_msg: | |
4775 | nlmsg_free(msg); | |
4776 | } | |
4777 | ||
52cc5f3a | 4778 | static void devlink_flash_update_begin_notify(struct devlink *devlink) |
191ed202 | 4779 | { |
ed43fbac | 4780 | struct devlink_flash_notify params = {}; |
6700acc5 | 4781 | |
191ed202 JP |
4782 | __devlink_flash_update_notify(devlink, |
4783 | DEVLINK_CMD_FLASH_UPDATE, | |
6700acc5 | 4784 | ¶ms); |
191ed202 | 4785 | } |
191ed202 | 4786 | |
52cc5f3a | 4787 | static void devlink_flash_update_end_notify(struct devlink *devlink) |
191ed202 | 4788 | { |
ed43fbac | 4789 | struct devlink_flash_notify params = {}; |
6700acc5 | 4790 | |
191ed202 JP |
4791 | __devlink_flash_update_notify(devlink, |
4792 | DEVLINK_CMD_FLASH_UPDATE_END, | |
6700acc5 | 4793 | ¶ms); |
191ed202 | 4794 | } |
191ed202 JP |
4795 | |
4796 | void devlink_flash_update_status_notify(struct devlink *devlink, | |
4797 | const char *status_msg, | |
4798 | const char *component, | |
4799 | unsigned long done, | |
4800 | unsigned long total) | |
4801 | { | |
6700acc5 SN |
4802 | struct devlink_flash_notify params = { |
4803 | .status_msg = status_msg, | |
4804 | .component = component, | |
4805 | .done = done, | |
4806 | .total = total, | |
4807 | }; | |
4808 | ||
191ed202 JP |
4809 | __devlink_flash_update_notify(devlink, |
4810 | DEVLINK_CMD_FLASH_UPDATE_STATUS, | |
6700acc5 | 4811 | ¶ms); |
191ed202 JP |
4812 | } |
4813 | EXPORT_SYMBOL_GPL(devlink_flash_update_status_notify); | |
4814 | ||
f92970c6 SN |
4815 | void devlink_flash_update_timeout_notify(struct devlink *devlink, |
4816 | const char *status_msg, | |
4817 | const char *component, | |
4818 | unsigned long timeout) | |
4819 | { | |
6700acc5 SN |
4820 | struct devlink_flash_notify params = { |
4821 | .status_msg = status_msg, | |
4822 | .component = component, | |
4823 | .timeout = timeout, | |
4824 | }; | |
4825 | ||
f92970c6 SN |
4826 | __devlink_flash_update_notify(devlink, |
4827 | DEVLINK_CMD_FLASH_UPDATE_STATUS, | |
6700acc5 | 4828 | ¶ms); |
f92970c6 SN |
4829 | } |
4830 | EXPORT_SYMBOL_GPL(devlink_flash_update_timeout_notify); | |
4831 | ||
f94b6063 JP |
4832 | struct devlink_info_req { |
4833 | struct sk_buff *msg; | |
4834 | void (*version_cb)(const char *version_name, | |
4835 | enum devlink_info_version_type version_type, | |
4836 | void *version_cb_priv); | |
4837 | void *version_cb_priv; | |
4838 | }; | |
4839 | ||
4840 | struct devlink_flash_component_lookup_ctx { | |
4841 | const char *lookup_name; | |
4842 | bool lookup_name_found; | |
4843 | }; | |
4844 | ||
4845 | static void | |
4846 | devlink_flash_component_lookup_cb(const char *version_name, | |
4847 | enum devlink_info_version_type version_type, | |
4848 | void *version_cb_priv) | |
4849 | { | |
4850 | struct devlink_flash_component_lookup_ctx *lookup_ctx = version_cb_priv; | |
4851 | ||
4852 | if (version_type != DEVLINK_INFO_VERSION_TYPE_COMPONENT || | |
4853 | lookup_ctx->lookup_name_found) | |
4854 | return; | |
4855 | ||
4856 | lookup_ctx->lookup_name_found = | |
4857 | !strcmp(lookup_ctx->lookup_name, version_name); | |
4858 | } | |
4859 | ||
4860 | static int devlink_flash_component_get(struct devlink *devlink, | |
4861 | struct nlattr *nla_component, | |
4862 | const char **p_component, | |
4863 | struct netlink_ext_ack *extack) | |
4864 | { | |
4865 | struct devlink_flash_component_lookup_ctx lookup_ctx = {}; | |
4866 | struct devlink_info_req req = {}; | |
4867 | const char *component; | |
4868 | int ret; | |
4869 | ||
4870 | if (!nla_component) | |
4871 | return 0; | |
4872 | ||
4873 | component = nla_data(nla_component); | |
4874 | ||
4875 | if (!devlink->ops->info_get) { | |
4876 | NL_SET_ERR_MSG_ATTR(extack, nla_component, | |
4877 | "component update is not supported by this device"); | |
4878 | return -EOPNOTSUPP; | |
4879 | } | |
4880 | ||
4881 | lookup_ctx.lookup_name = component; | |
4882 | req.version_cb = devlink_flash_component_lookup_cb; | |
4883 | req.version_cb_priv = &lookup_ctx; | |
4884 | ||
4885 | ret = devlink->ops->info_get(devlink, &req, NULL); | |
4886 | if (ret) | |
4887 | return ret; | |
4888 | ||
4889 | if (!lookup_ctx.lookup_name_found) { | |
4890 | NL_SET_ERR_MSG_ATTR(extack, nla_component, | |
4891 | "selected component is not supported by this device"); | |
4892 | return -EINVAL; | |
4893 | } | |
4894 | *p_component = component; | |
4895 | return 0; | |
4896 | } | |
4897 | ||
76726ccb JK |
4898 | static int devlink_nl_cmd_flash_update(struct sk_buff *skb, |
4899 | struct genl_info *info) | |
4900 | { | |
f94b6063 | 4901 | struct nlattr *nla_overwrite_mask, *nla_file_name; |
bc75c054 | 4902 | struct devlink_flash_update_params params = {}; |
76726ccb | 4903 | struct devlink *devlink = info->user_ptr[0]; |
b44cfd4f | 4904 | const char *file_name; |
22ec3d23 | 4905 | u32 supported_params; |
b44cfd4f | 4906 | int ret; |
76726ccb JK |
4907 | |
4908 | if (!devlink->ops->flash_update) | |
4909 | return -EOPNOTSUPP; | |
4910 | ||
1f7633b5 | 4911 | if (GENL_REQ_ATTR_CHECK(info, DEVLINK_ATTR_FLASH_UPDATE_FILE_NAME)) |
76726ccb | 4912 | return -EINVAL; |
22ec3d23 | 4913 | |
f94b6063 JP |
4914 | ret = devlink_flash_component_get(devlink, |
4915 | info->attrs[DEVLINK_ATTR_FLASH_UPDATE_COMPONENT], | |
4916 | ¶ms.component, info->extack); | |
4917 | if (ret) | |
4918 | return ret; | |
22ec3d23 | 4919 | |
f94b6063 | 4920 | supported_params = devlink->ops->supported_flash_update_params; |
76726ccb | 4921 | |
5d5b4128 JK |
4922 | nla_overwrite_mask = info->attrs[DEVLINK_ATTR_FLASH_UPDATE_OVERWRITE_MASK]; |
4923 | if (nla_overwrite_mask) { | |
4924 | struct nla_bitfield32 sections; | |
4925 | ||
4926 | if (!(supported_params & DEVLINK_SUPPORT_FLASH_UPDATE_OVERWRITE_MASK)) { | |
4927 | NL_SET_ERR_MSG_ATTR(info->extack, nla_overwrite_mask, | |
4928 | "overwrite settings are not supported by this device"); | |
4929 | return -EOPNOTSUPP; | |
4930 | } | |
4931 | sections = nla_get_bitfield32(nla_overwrite_mask); | |
4932 | params.overwrite_mask = sections.value & sections.selector; | |
4933 | } | |
4934 | ||
b44cfd4f JK |
4935 | nla_file_name = info->attrs[DEVLINK_ATTR_FLASH_UPDATE_FILE_NAME]; |
4936 | file_name = nla_data(nla_file_name); | |
4937 | ret = request_firmware(¶ms.fw, file_name, devlink->dev); | |
4938 | if (ret) { | |
4939 | NL_SET_ERR_MSG_ATTR(info->extack, nla_file_name, "failed to locate the requested firmware file"); | |
4940 | return ret; | |
4941 | } | |
4942 | ||
52cc5f3a | 4943 | devlink_flash_update_begin_notify(devlink); |
b44cfd4f | 4944 | ret = devlink->ops->flash_update(devlink, ¶ms, info->extack); |
52cc5f3a | 4945 | devlink_flash_update_end_notify(devlink); |
b44cfd4f JK |
4946 | |
4947 | release_firmware(params.fw); | |
4948 | ||
4949 | return ret; | |
76726ccb JK |
4950 | } |
4951 | ||
08f588fa VG |
4952 | static int |
4953 | devlink_nl_selftests_fill(struct sk_buff *msg, struct devlink *devlink, | |
4954 | u32 portid, u32 seq, int flags, | |
4955 | struct netlink_ext_ack *extack) | |
4956 | { | |
4957 | struct nlattr *selftests; | |
4958 | void *hdr; | |
4959 | int err; | |
4960 | int i; | |
4961 | ||
4962 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, | |
4963 | DEVLINK_CMD_SELFTESTS_GET); | |
4964 | if (!hdr) | |
4965 | return -EMSGSIZE; | |
4966 | ||
4967 | err = -EMSGSIZE; | |
4968 | if (devlink_nl_put_handle(msg, devlink)) | |
4969 | goto err_cancel_msg; | |
4970 | ||
4971 | selftests = nla_nest_start(msg, DEVLINK_ATTR_SELFTESTS); | |
4972 | if (!selftests) | |
4973 | goto err_cancel_msg; | |
4974 | ||
4975 | for (i = DEVLINK_ATTR_SELFTEST_ID_UNSPEC + 1; | |
4976 | i <= DEVLINK_ATTR_SELFTEST_ID_MAX; i++) { | |
4977 | if (devlink->ops->selftest_check(devlink, i, extack)) { | |
4978 | err = nla_put_flag(msg, i); | |
4979 | if (err) | |
4980 | goto err_cancel_msg; | |
4981 | } | |
4982 | } | |
4983 | ||
4984 | nla_nest_end(msg, selftests); | |
4985 | genlmsg_end(msg, hdr); | |
4986 | return 0; | |
4987 | ||
4988 | err_cancel_msg: | |
4989 | genlmsg_cancel(msg, hdr); | |
4990 | return err; | |
4991 | } | |
4992 | ||
4993 | static int devlink_nl_cmd_selftests_get_doit(struct sk_buff *skb, | |
4994 | struct genl_info *info) | |
4995 | { | |
4996 | struct devlink *devlink = info->user_ptr[0]; | |
4997 | struct sk_buff *msg; | |
4998 | int err; | |
4999 | ||
5000 | if (!devlink->ops->selftest_check) | |
5001 | return -EOPNOTSUPP; | |
5002 | ||
5003 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
5004 | if (!msg) | |
5005 | return -ENOMEM; | |
5006 | ||
5007 | err = devlink_nl_selftests_fill(msg, devlink, info->snd_portid, | |
5008 | info->snd_seq, 0, info->extack); | |
5009 | if (err) { | |
5010 | nlmsg_free(msg); | |
5011 | return err; | |
5012 | } | |
5013 | ||
5014 | return genlmsg_reply(msg, info); | |
5015 | } | |
5016 | ||
5017 | static int devlink_nl_cmd_selftests_get_dumpit(struct sk_buff *msg, | |
5018 | struct netlink_callback *cb) | |
5019 | { | |
5020 | struct devlink *devlink; | |
5021 | int start = cb->args[0]; | |
5022 | unsigned long index; | |
5023 | int idx = 0; | |
5024 | int err = 0; | |
5025 | ||
08f588fa VG |
5026 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
5027 | if (idx < start || !devlink->ops->selftest_check) | |
5028 | goto inc; | |
5029 | ||
5030 | devl_lock(devlink); | |
5031 | err = devlink_nl_selftests_fill(msg, devlink, | |
5032 | NETLINK_CB(cb->skb).portid, | |
5033 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
5034 | cb->extack); | |
5035 | devl_unlock(devlink); | |
5036 | if (err) { | |
5037 | devlink_put(devlink); | |
5038 | break; | |
5039 | } | |
5040 | inc: | |
5041 | idx++; | |
5042 | devlink_put(devlink); | |
5043 | } | |
08f588fa VG |
5044 | |
5045 | if (err != -EMSGSIZE) | |
5046 | return err; | |
5047 | ||
5048 | cb->args[0] = idx; | |
5049 | return msg->len; | |
5050 | } | |
5051 | ||
5052 | static int devlink_selftest_result_put(struct sk_buff *skb, unsigned int id, | |
5053 | enum devlink_selftest_status test_status) | |
5054 | { | |
5055 | struct nlattr *result_attr; | |
5056 | ||
5057 | result_attr = nla_nest_start(skb, DEVLINK_ATTR_SELFTEST_RESULT); | |
5058 | if (!result_attr) | |
5059 | return -EMSGSIZE; | |
5060 | ||
5061 | if (nla_put_u32(skb, DEVLINK_ATTR_SELFTEST_RESULT_ID, id) || | |
5062 | nla_put_u8(skb, DEVLINK_ATTR_SELFTEST_RESULT_STATUS, | |
5063 | test_status)) | |
5064 | goto nla_put_failure; | |
5065 | ||
5066 | nla_nest_end(skb, result_attr); | |
5067 | return 0; | |
5068 | ||
5069 | nla_put_failure: | |
5070 | nla_nest_cancel(skb, result_attr); | |
5071 | return -EMSGSIZE; | |
5072 | } | |
5073 | ||
5074 | static int devlink_nl_cmd_selftests_run(struct sk_buff *skb, | |
5075 | struct genl_info *info) | |
5076 | { | |
5077 | struct nlattr *tb[DEVLINK_ATTR_SELFTEST_ID_MAX + 1]; | |
5078 | struct devlink *devlink = info->user_ptr[0]; | |
5079 | struct nlattr *attrs, *selftests; | |
5080 | struct sk_buff *msg; | |
5081 | void *hdr; | |
5082 | int err; | |
5083 | int i; | |
5084 | ||
5085 | if (!devlink->ops->selftest_run || !devlink->ops->selftest_check) | |
5086 | return -EOPNOTSUPP; | |
5087 | ||
1f7633b5 | 5088 | if (GENL_REQ_ATTR_CHECK(info, DEVLINK_ATTR_SELFTESTS)) |
08f588fa | 5089 | return -EINVAL; |
08f588fa VG |
5090 | |
5091 | attrs = info->attrs[DEVLINK_ATTR_SELFTESTS]; | |
5092 | ||
5093 | err = nla_parse_nested(tb, DEVLINK_ATTR_SELFTEST_ID_MAX, attrs, | |
5094 | devlink_selftest_nl_policy, info->extack); | |
5095 | if (err < 0) | |
5096 | return err; | |
5097 | ||
5098 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
5099 | if (!msg) | |
5100 | return -ENOMEM; | |
5101 | ||
5102 | err = -EMSGSIZE; | |
5103 | hdr = genlmsg_put(msg, info->snd_portid, info->snd_seq, | |
5104 | &devlink_nl_family, 0, DEVLINK_CMD_SELFTESTS_RUN); | |
5105 | if (!hdr) | |
5106 | goto free_msg; | |
5107 | ||
5108 | if (devlink_nl_put_handle(msg, devlink)) | |
5109 | goto genlmsg_cancel; | |
5110 | ||
5111 | selftests = nla_nest_start(msg, DEVLINK_ATTR_SELFTESTS); | |
5112 | if (!selftests) | |
5113 | goto genlmsg_cancel; | |
5114 | ||
5115 | for (i = DEVLINK_ATTR_SELFTEST_ID_UNSPEC + 1; | |
5116 | i <= DEVLINK_ATTR_SELFTEST_ID_MAX; i++) { | |
5117 | enum devlink_selftest_status test_status; | |
5118 | ||
5119 | if (nla_get_flag(tb[i])) { | |
5120 | if (!devlink->ops->selftest_check(devlink, i, | |
5121 | info->extack)) { | |
5122 | if (devlink_selftest_result_put(msg, i, | |
5123 | DEVLINK_SELFTEST_STATUS_SKIP)) | |
5124 | goto selftests_nest_cancel; | |
5125 | continue; | |
5126 | } | |
5127 | ||
5128 | test_status = devlink->ops->selftest_run(devlink, i, | |
5129 | info->extack); | |
5130 | if (devlink_selftest_result_put(msg, i, test_status)) | |
5131 | goto selftests_nest_cancel; | |
5132 | } | |
5133 | } | |
5134 | ||
5135 | nla_nest_end(msg, selftests); | |
5136 | genlmsg_end(msg, hdr); | |
5137 | return genlmsg_reply(msg, info); | |
5138 | ||
5139 | selftests_nest_cancel: | |
5140 | nla_nest_cancel(msg, selftests); | |
5141 | genlmsg_cancel: | |
5142 | genlmsg_cancel(msg, hdr); | |
5143 | free_msg: | |
5144 | nlmsg_free(msg); | |
5145 | return err; | |
5146 | } | |
5147 | ||
036467c3 MS |
5148 | static const struct devlink_param devlink_param_generic[] = { |
5149 | { | |
5150 | .id = DEVLINK_PARAM_GENERIC_ID_INT_ERR_RESET, | |
5151 | .name = DEVLINK_PARAM_GENERIC_INT_ERR_RESET_NAME, | |
5152 | .type = DEVLINK_PARAM_GENERIC_INT_ERR_RESET_TYPE, | |
5153 | }, | |
5154 | { | |
5155 | .id = DEVLINK_PARAM_GENERIC_ID_MAX_MACS, | |
5156 | .name = DEVLINK_PARAM_GENERIC_MAX_MACS_NAME, | |
5157 | .type = DEVLINK_PARAM_GENERIC_MAX_MACS_TYPE, | |
5158 | }, | |
f567bcda VV |
5159 | { |
5160 | .id = DEVLINK_PARAM_GENERIC_ID_ENABLE_SRIOV, | |
5161 | .name = DEVLINK_PARAM_GENERIC_ENABLE_SRIOV_NAME, | |
5162 | .type = DEVLINK_PARAM_GENERIC_ENABLE_SRIOV_TYPE, | |
5163 | }, | |
f6a69885 AV |
5164 | { |
5165 | .id = DEVLINK_PARAM_GENERIC_ID_REGION_SNAPSHOT, | |
5166 | .name = DEVLINK_PARAM_GENERIC_REGION_SNAPSHOT_NAME, | |
5167 | .type = DEVLINK_PARAM_GENERIC_REGION_SNAPSHOT_TYPE, | |
5168 | }, | |
e3b51061 VV |
5169 | { |
5170 | .id = DEVLINK_PARAM_GENERIC_ID_IGNORE_ARI, | |
5171 | .name = DEVLINK_PARAM_GENERIC_IGNORE_ARI_NAME, | |
5172 | .type = DEVLINK_PARAM_GENERIC_IGNORE_ARI_TYPE, | |
5173 | }, | |
f61cba42 VV |
5174 | { |
5175 | .id = DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MAX, | |
5176 | .name = DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MAX_NAME, | |
5177 | .type = DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MAX_TYPE, | |
5178 | }, | |
16511789 VV |
5179 | { |
5180 | .id = DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MIN, | |
5181 | .name = DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MIN_NAME, | |
5182 | .type = DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MIN_TYPE, | |
5183 | }, | |
846e980a ST |
5184 | { |
5185 | .id = DEVLINK_PARAM_GENERIC_ID_FW_LOAD_POLICY, | |
5186 | .name = DEVLINK_PARAM_GENERIC_FW_LOAD_POLICY_NAME, | |
5187 | .type = DEVLINK_PARAM_GENERIC_FW_LOAD_POLICY_TYPE, | |
5188 | }, | |
5bbd21df DM |
5189 | { |
5190 | .id = DEVLINK_PARAM_GENERIC_ID_RESET_DEV_ON_DRV_PROBE, | |
5191 | .name = DEVLINK_PARAM_GENERIC_RESET_DEV_ON_DRV_PROBE_NAME, | |
5192 | .type = DEVLINK_PARAM_GENERIC_RESET_DEV_ON_DRV_PROBE_TYPE, | |
5193 | }, | |
6c7295e1 MG |
5194 | { |
5195 | .id = DEVLINK_PARAM_GENERIC_ID_ENABLE_ROCE, | |
5196 | .name = DEVLINK_PARAM_GENERIC_ENABLE_ROCE_NAME, | |
5197 | .type = DEVLINK_PARAM_GENERIC_ENABLE_ROCE_TYPE, | |
5198 | }, | |
195d9dec MS |
5199 | { |
5200 | .id = DEVLINK_PARAM_GENERIC_ID_ENABLE_REMOTE_DEV_RESET, | |
5201 | .name = DEVLINK_PARAM_GENERIC_ENABLE_REMOTE_DEV_RESET_NAME, | |
5202 | .type = DEVLINK_PARAM_GENERIC_ENABLE_REMOTE_DEV_RESET_TYPE, | |
5203 | }, | |
f13a5ad8 PP |
5204 | { |
5205 | .id = DEVLINK_PARAM_GENERIC_ID_ENABLE_ETH, | |
5206 | .name = DEVLINK_PARAM_GENERIC_ENABLE_ETH_NAME, | |
5207 | .type = DEVLINK_PARAM_GENERIC_ENABLE_ETH_TYPE, | |
5208 | }, | |
8ddaabee PP |
5209 | { |
5210 | .id = DEVLINK_PARAM_GENERIC_ID_ENABLE_RDMA, | |
5211 | .name = DEVLINK_PARAM_GENERIC_ENABLE_RDMA_NAME, | |
5212 | .type = DEVLINK_PARAM_GENERIC_ENABLE_RDMA_TYPE, | |
5213 | }, | |
076b2a9d PP |
5214 | { |
5215 | .id = DEVLINK_PARAM_GENERIC_ID_ENABLE_VNET, | |
5216 | .name = DEVLINK_PARAM_GENERIC_ENABLE_VNET_NAME, | |
5217 | .type = DEVLINK_PARAM_GENERIC_ENABLE_VNET_TYPE, | |
5218 | }, | |
325e0d0a SS |
5219 | { |
5220 | .id = DEVLINK_PARAM_GENERIC_ID_ENABLE_IWARP, | |
5221 | .name = DEVLINK_PARAM_GENERIC_ENABLE_IWARP_NAME, | |
5222 | .type = DEVLINK_PARAM_GENERIC_ENABLE_IWARP_TYPE, | |
5223 | }, | |
47402385 SD |
5224 | { |
5225 | .id = DEVLINK_PARAM_GENERIC_ID_IO_EQ_SIZE, | |
5226 | .name = DEVLINK_PARAM_GENERIC_IO_EQ_SIZE_NAME, | |
5227 | .type = DEVLINK_PARAM_GENERIC_IO_EQ_SIZE_TYPE, | |
5228 | }, | |
0b5705eb SD |
5229 | { |
5230 | .id = DEVLINK_PARAM_GENERIC_ID_EVENT_EQ_SIZE, | |
5231 | .name = DEVLINK_PARAM_GENERIC_EVENT_EQ_SIZE_NAME, | |
5232 | .type = DEVLINK_PARAM_GENERIC_EVENT_EQ_SIZE_TYPE, | |
5233 | }, | |
036467c3 | 5234 | }; |
eabaef18 MS |
5235 | |
5236 | static int devlink_param_generic_verify(const struct devlink_param *param) | |
5237 | { | |
5238 | /* verify it match generic parameter by id and name */ | |
5239 | if (param->id > DEVLINK_PARAM_GENERIC_ID_MAX) | |
5240 | return -EINVAL; | |
5241 | if (strcmp(param->name, devlink_param_generic[param->id].name)) | |
5242 | return -ENOENT; | |
5243 | ||
5244 | WARN_ON(param->type != devlink_param_generic[param->id].type); | |
5245 | ||
5246 | return 0; | |
5247 | } | |
5248 | ||
5249 | static int devlink_param_driver_verify(const struct devlink_param *param) | |
5250 | { | |
5251 | int i; | |
5252 | ||
5253 | if (param->id <= DEVLINK_PARAM_GENERIC_ID_MAX) | |
5254 | return -EINVAL; | |
5255 | /* verify no such name in generic params */ | |
5256 | for (i = 0; i <= DEVLINK_PARAM_GENERIC_ID_MAX; i++) | |
5257 | if (!strcmp(param->name, devlink_param_generic[i].name)) | |
5258 | return -EEXIST; | |
5259 | ||
5260 | return 0; | |
5261 | } | |
5262 | ||
5263 | static struct devlink_param_item * | |
5264 | devlink_param_find_by_name(struct list_head *param_list, | |
5265 | const char *param_name) | |
5266 | { | |
5267 | struct devlink_param_item *param_item; | |
5268 | ||
5269 | list_for_each_entry(param_item, param_list, list) | |
5270 | if (!strcmp(param_item->param->name, param_name)) | |
5271 | return param_item; | |
5272 | return NULL; | |
5273 | } | |
5274 | ||
ec01aeb1 MS |
5275 | static struct devlink_param_item * |
5276 | devlink_param_find_by_id(struct list_head *param_list, u32 param_id) | |
5277 | { | |
5278 | struct devlink_param_item *param_item; | |
5279 | ||
5280 | list_for_each_entry(param_item, param_list, list) | |
5281 | if (param_item->param->id == param_id) | |
5282 | return param_item; | |
5283 | return NULL; | |
5284 | } | |
5285 | ||
45f05def MS |
5286 | static bool |
5287 | devlink_param_cmode_is_supported(const struct devlink_param *param, | |
5288 | enum devlink_param_cmode cmode) | |
5289 | { | |
5290 | return test_bit(cmode, ¶m->supported_cmodes); | |
5291 | } | |
5292 | ||
5293 | static int devlink_param_get(struct devlink *devlink, | |
5294 | const struct devlink_param *param, | |
5295 | struct devlink_param_gset_ctx *ctx) | |
5296 | { | |
6b4db2e5 | 5297 | if (!param->get || devlink->reload_failed) |
45f05def MS |
5298 | return -EOPNOTSUPP; |
5299 | return param->get(devlink, param->id, ctx); | |
5300 | } | |
5301 | ||
e3b7ca18 MS |
5302 | static int devlink_param_set(struct devlink *devlink, |
5303 | const struct devlink_param *param, | |
5304 | struct devlink_param_gset_ctx *ctx) | |
5305 | { | |
6b4db2e5 | 5306 | if (!param->set || devlink->reload_failed) |
e3b7ca18 MS |
5307 | return -EOPNOTSUPP; |
5308 | return param->set(devlink, param->id, ctx); | |
5309 | } | |
5310 | ||
45f05def MS |
5311 | static int |
5312 | devlink_param_type_to_nla_type(enum devlink_param_type param_type) | |
5313 | { | |
5314 | switch (param_type) { | |
5315 | case DEVLINK_PARAM_TYPE_U8: | |
5316 | return NLA_U8; | |
5317 | case DEVLINK_PARAM_TYPE_U16: | |
5318 | return NLA_U16; | |
5319 | case DEVLINK_PARAM_TYPE_U32: | |
5320 | return NLA_U32; | |
5321 | case DEVLINK_PARAM_TYPE_STRING: | |
5322 | return NLA_STRING; | |
5323 | case DEVLINK_PARAM_TYPE_BOOL: | |
5324 | return NLA_FLAG; | |
5325 | default: | |
5326 | return -EINVAL; | |
5327 | } | |
5328 | } | |
5329 | ||
5330 | static int | |
5331 | devlink_nl_param_value_fill_one(struct sk_buff *msg, | |
5332 | enum devlink_param_type type, | |
5333 | enum devlink_param_cmode cmode, | |
5334 | union devlink_param_value val) | |
5335 | { | |
5336 | struct nlattr *param_value_attr; | |
5337 | ||
ae0be8de MK |
5338 | param_value_attr = nla_nest_start_noflag(msg, |
5339 | DEVLINK_ATTR_PARAM_VALUE); | |
45f05def MS |
5340 | if (!param_value_attr) |
5341 | goto nla_put_failure; | |
5342 | ||
5343 | if (nla_put_u8(msg, DEVLINK_ATTR_PARAM_VALUE_CMODE, cmode)) | |
5344 | goto value_nest_cancel; | |
5345 | ||
5346 | switch (type) { | |
5347 | case DEVLINK_PARAM_TYPE_U8: | |
5348 | if (nla_put_u8(msg, DEVLINK_ATTR_PARAM_VALUE_DATA, val.vu8)) | |
5349 | goto value_nest_cancel; | |
5350 | break; | |
5351 | case DEVLINK_PARAM_TYPE_U16: | |
5352 | if (nla_put_u16(msg, DEVLINK_ATTR_PARAM_VALUE_DATA, val.vu16)) | |
5353 | goto value_nest_cancel; | |
5354 | break; | |
5355 | case DEVLINK_PARAM_TYPE_U32: | |
5356 | if (nla_put_u32(msg, DEVLINK_ATTR_PARAM_VALUE_DATA, val.vu32)) | |
5357 | goto value_nest_cancel; | |
5358 | break; | |
5359 | case DEVLINK_PARAM_TYPE_STRING: | |
5360 | if (nla_put_string(msg, DEVLINK_ATTR_PARAM_VALUE_DATA, | |
5361 | val.vstr)) | |
5362 | goto value_nest_cancel; | |
5363 | break; | |
5364 | case DEVLINK_PARAM_TYPE_BOOL: | |
5365 | if (val.vbool && | |
5366 | nla_put_flag(msg, DEVLINK_ATTR_PARAM_VALUE_DATA)) | |
5367 | goto value_nest_cancel; | |
5368 | break; | |
5369 | } | |
5370 | ||
5371 | nla_nest_end(msg, param_value_attr); | |
5372 | return 0; | |
5373 | ||
5374 | value_nest_cancel: | |
5375 | nla_nest_cancel(msg, param_value_attr); | |
5376 | nla_put_failure: | |
5377 | return -EMSGSIZE; | |
5378 | } | |
5379 | ||
5380 | static int devlink_nl_param_fill(struct sk_buff *msg, struct devlink *devlink, | |
f4601dee | 5381 | unsigned int port_index, |
45f05def MS |
5382 | struct devlink_param_item *param_item, |
5383 | enum devlink_command cmd, | |
5384 | u32 portid, u32 seq, int flags) | |
5385 | { | |
5386 | union devlink_param_value param_value[DEVLINK_PARAM_CMODE_MAX + 1]; | |
7c62cfb8 | 5387 | bool param_value_set[DEVLINK_PARAM_CMODE_MAX + 1] = {}; |
45f05def MS |
5388 | const struct devlink_param *param = param_item->param; |
5389 | struct devlink_param_gset_ctx ctx; | |
5390 | struct nlattr *param_values_list; | |
5391 | struct nlattr *param_attr; | |
5392 | int nla_type; | |
5393 | void *hdr; | |
5394 | int err; | |
5395 | int i; | |
5396 | ||
5397 | /* Get value from driver part to driverinit configuration mode */ | |
5398 | for (i = 0; i <= DEVLINK_PARAM_CMODE_MAX; i++) { | |
5399 | if (!devlink_param_cmode_is_supported(param, i)) | |
5400 | continue; | |
5401 | if (i == DEVLINK_PARAM_CMODE_DRIVERINIT) { | |
5402 | if (!param_item->driverinit_value_valid) | |
5403 | return -EOPNOTSUPP; | |
5404 | param_value[i] = param_item->driverinit_value; | |
5405 | } else { | |
5406 | ctx.cmode = i; | |
5407 | err = devlink_param_get(devlink, param, &ctx); | |
5408 | if (err) | |
5409 | return err; | |
5410 | param_value[i] = ctx.val; | |
5411 | } | |
7c62cfb8 | 5412 | param_value_set[i] = true; |
45f05def MS |
5413 | } |
5414 | ||
5415 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
5416 | if (!hdr) | |
5417 | return -EMSGSIZE; | |
5418 | ||
5419 | if (devlink_nl_put_handle(msg, devlink)) | |
5420 | goto genlmsg_cancel; | |
f4601dee | 5421 | |
c1e5786d VV |
5422 | if (cmd == DEVLINK_CMD_PORT_PARAM_GET || |
5423 | cmd == DEVLINK_CMD_PORT_PARAM_NEW || | |
5424 | cmd == DEVLINK_CMD_PORT_PARAM_DEL) | |
f4601dee VV |
5425 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, port_index)) |
5426 | goto genlmsg_cancel; | |
5427 | ||
ae0be8de | 5428 | param_attr = nla_nest_start_noflag(msg, DEVLINK_ATTR_PARAM); |
45f05def MS |
5429 | if (!param_attr) |
5430 | goto genlmsg_cancel; | |
5431 | if (nla_put_string(msg, DEVLINK_ATTR_PARAM_NAME, param->name)) | |
5432 | goto param_nest_cancel; | |
5433 | if (param->generic && nla_put_flag(msg, DEVLINK_ATTR_PARAM_GENERIC)) | |
5434 | goto param_nest_cancel; | |
5435 | ||
5436 | nla_type = devlink_param_type_to_nla_type(param->type); | |
5437 | if (nla_type < 0) | |
5438 | goto param_nest_cancel; | |
5439 | if (nla_put_u8(msg, DEVLINK_ATTR_PARAM_TYPE, nla_type)) | |
5440 | goto param_nest_cancel; | |
5441 | ||
ae0be8de MK |
5442 | param_values_list = nla_nest_start_noflag(msg, |
5443 | DEVLINK_ATTR_PARAM_VALUES_LIST); | |
45f05def MS |
5444 | if (!param_values_list) |
5445 | goto param_nest_cancel; | |
5446 | ||
5447 | for (i = 0; i <= DEVLINK_PARAM_CMODE_MAX; i++) { | |
7c62cfb8 | 5448 | if (!param_value_set[i]) |
45f05def MS |
5449 | continue; |
5450 | err = devlink_nl_param_value_fill_one(msg, param->type, | |
5451 | i, param_value[i]); | |
5452 | if (err) | |
5453 | goto values_list_nest_cancel; | |
5454 | } | |
5455 | ||
5456 | nla_nest_end(msg, param_values_list); | |
5457 | nla_nest_end(msg, param_attr); | |
5458 | genlmsg_end(msg, hdr); | |
5459 | return 0; | |
5460 | ||
5461 | values_list_nest_cancel: | |
5462 | nla_nest_end(msg, param_values_list); | |
5463 | param_nest_cancel: | |
5464 | nla_nest_cancel(msg, param_attr); | |
5465 | genlmsg_cancel: | |
5466 | genlmsg_cancel(msg, hdr); | |
5467 | return -EMSGSIZE; | |
5468 | } | |
5469 | ||
ea601e17 | 5470 | static void devlink_param_notify(struct devlink *devlink, |
c1e5786d | 5471 | unsigned int port_index, |
ea601e17 MS |
5472 | struct devlink_param_item *param_item, |
5473 | enum devlink_command cmd) | |
5474 | { | |
5475 | struct sk_buff *msg; | |
5476 | int err; | |
5477 | ||
c1e5786d VV |
5478 | WARN_ON(cmd != DEVLINK_CMD_PARAM_NEW && cmd != DEVLINK_CMD_PARAM_DEL && |
5479 | cmd != DEVLINK_CMD_PORT_PARAM_NEW && | |
5480 | cmd != DEVLINK_CMD_PORT_PARAM_DEL); | |
7a690ad4 | 5481 | ASSERT_DEVLINK_REGISTERED(devlink); |
ea601e17 MS |
5482 | |
5483 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
5484 | if (!msg) | |
5485 | return; | |
c1e5786d VV |
5486 | err = devlink_nl_param_fill(msg, devlink, port_index, param_item, cmd, |
5487 | 0, 0, 0); | |
ea601e17 MS |
5488 | if (err) { |
5489 | nlmsg_free(msg); | |
5490 | return; | |
5491 | } | |
5492 | ||
5493 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), | |
5494 | msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
5495 | } | |
5496 | ||
45f05def MS |
5497 | static int devlink_nl_cmd_param_get_dumpit(struct sk_buff *msg, |
5498 | struct netlink_callback *cb) | |
5499 | { | |
5500 | struct devlink_param_item *param_item; | |
5501 | struct devlink *devlink; | |
5502 | int start = cb->args[0]; | |
11a861d7 | 5503 | unsigned long index; |
45f05def | 5504 | int idx = 0; |
c62c2cfb | 5505 | int err = 0; |
45f05def | 5506 | |
294c4f57 | 5507 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
7715023a | 5508 | devl_lock(devlink); |
45f05def MS |
5509 | list_for_each_entry(param_item, &devlink->param_list, list) { |
5510 | if (idx < start) { | |
5511 | idx++; | |
5512 | continue; | |
5513 | } | |
f4601dee | 5514 | err = devlink_nl_param_fill(msg, devlink, 0, param_item, |
45f05def MS |
5515 | DEVLINK_CMD_PARAM_GET, |
5516 | NETLINK_CB(cb->skb).portid, | |
5517 | cb->nlh->nlmsg_seq, | |
5518 | NLM_F_MULTI); | |
82274d07 JK |
5519 | if (err == -EOPNOTSUPP) { |
5520 | err = 0; | |
5521 | } else if (err) { | |
7715023a | 5522 | devl_unlock(devlink); |
437ebfd9 | 5523 | devlink_put(devlink); |
45f05def MS |
5524 | goto out; |
5525 | } | |
5526 | idx++; | |
5527 | } | |
7715023a | 5528 | devl_unlock(devlink); |
437ebfd9 | 5529 | devlink_put(devlink); |
45f05def MS |
5530 | } |
5531 | out: | |
c62c2cfb JP |
5532 | if (err != -EMSGSIZE) |
5533 | return err; | |
5534 | ||
45f05def MS |
5535 | cb->args[0] = idx; |
5536 | return msg->len; | |
5537 | } | |
5538 | ||
e3b7ca18 MS |
5539 | static int |
5540 | devlink_param_type_get_from_info(struct genl_info *info, | |
5541 | enum devlink_param_type *param_type) | |
5542 | { | |
1f7633b5 | 5543 | if (GENL_REQ_ATTR_CHECK(info, DEVLINK_ATTR_PARAM_TYPE)) |
e3b7ca18 MS |
5544 | return -EINVAL; |
5545 | ||
5546 | switch (nla_get_u8(info->attrs[DEVLINK_ATTR_PARAM_TYPE])) { | |
5547 | case NLA_U8: | |
5548 | *param_type = DEVLINK_PARAM_TYPE_U8; | |
5549 | break; | |
5550 | case NLA_U16: | |
5551 | *param_type = DEVLINK_PARAM_TYPE_U16; | |
5552 | break; | |
5553 | case NLA_U32: | |
5554 | *param_type = DEVLINK_PARAM_TYPE_U32; | |
5555 | break; | |
5556 | case NLA_STRING: | |
5557 | *param_type = DEVLINK_PARAM_TYPE_STRING; | |
5558 | break; | |
5559 | case NLA_FLAG: | |
5560 | *param_type = DEVLINK_PARAM_TYPE_BOOL; | |
5561 | break; | |
5562 | default: | |
5563 | return -EINVAL; | |
5564 | } | |
5565 | ||
5566 | return 0; | |
5567 | } | |
5568 | ||
5569 | static int | |
5570 | devlink_param_value_get_from_info(const struct devlink_param *param, | |
5571 | struct genl_info *info, | |
5572 | union devlink_param_value *value) | |
5573 | { | |
8750939b | 5574 | struct nlattr *param_data; |
f355cfcd MS |
5575 | int len; |
5576 | ||
8750939b JK |
5577 | param_data = info->attrs[DEVLINK_ATTR_PARAM_VALUE_DATA]; |
5578 | ||
5579 | if (param->type != DEVLINK_PARAM_TYPE_BOOL && !param_data) | |
e3b7ca18 MS |
5580 | return -EINVAL; |
5581 | ||
5582 | switch (param->type) { | |
5583 | case DEVLINK_PARAM_TYPE_U8: | |
8750939b JK |
5584 | if (nla_len(param_data) != sizeof(u8)) |
5585 | return -EINVAL; | |
5586 | value->vu8 = nla_get_u8(param_data); | |
e3b7ca18 MS |
5587 | break; |
5588 | case DEVLINK_PARAM_TYPE_U16: | |
8750939b JK |
5589 | if (nla_len(param_data) != sizeof(u16)) |
5590 | return -EINVAL; | |
5591 | value->vu16 = nla_get_u16(param_data); | |
e3b7ca18 MS |
5592 | break; |
5593 | case DEVLINK_PARAM_TYPE_U32: | |
8750939b JK |
5594 | if (nla_len(param_data) != sizeof(u32)) |
5595 | return -EINVAL; | |
5596 | value->vu32 = nla_get_u32(param_data); | |
e3b7ca18 MS |
5597 | break; |
5598 | case DEVLINK_PARAM_TYPE_STRING: | |
8750939b JK |
5599 | len = strnlen(nla_data(param_data), nla_len(param_data)); |
5600 | if (len == nla_len(param_data) || | |
bde74ad1 | 5601 | len >= __DEVLINK_PARAM_MAX_STRING_VALUE) |
e3b7ca18 | 5602 | return -EINVAL; |
8750939b | 5603 | strcpy(value->vstr, nla_data(param_data)); |
e3b7ca18 MS |
5604 | break; |
5605 | case DEVLINK_PARAM_TYPE_BOOL: | |
8750939b JK |
5606 | if (param_data && nla_len(param_data)) |
5607 | return -EINVAL; | |
5608 | value->vbool = nla_get_flag(param_data); | |
e3b7ca18 MS |
5609 | break; |
5610 | } | |
5611 | return 0; | |
5612 | } | |
5613 | ||
45f05def | 5614 | static struct devlink_param_item * |
f4601dee | 5615 | devlink_param_get_from_info(struct list_head *param_list, |
45f05def MS |
5616 | struct genl_info *info) |
5617 | { | |
5618 | char *param_name; | |
5619 | ||
1f7633b5 | 5620 | if (GENL_REQ_ATTR_CHECK(info, DEVLINK_ATTR_PARAM_NAME)) |
45f05def MS |
5621 | return NULL; |
5622 | ||
5623 | param_name = nla_data(info->attrs[DEVLINK_ATTR_PARAM_NAME]); | |
f4601dee | 5624 | return devlink_param_find_by_name(param_list, param_name); |
45f05def MS |
5625 | } |
5626 | ||
5627 | static int devlink_nl_cmd_param_get_doit(struct sk_buff *skb, | |
5628 | struct genl_info *info) | |
5629 | { | |
5630 | struct devlink *devlink = info->user_ptr[0]; | |
5631 | struct devlink_param_item *param_item; | |
5632 | struct sk_buff *msg; | |
5633 | int err; | |
5634 | ||
f4601dee | 5635 | param_item = devlink_param_get_from_info(&devlink->param_list, info); |
45f05def MS |
5636 | if (!param_item) |
5637 | return -EINVAL; | |
5638 | ||
5639 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
5640 | if (!msg) | |
5641 | return -ENOMEM; | |
5642 | ||
f4601dee | 5643 | err = devlink_nl_param_fill(msg, devlink, 0, param_item, |
45f05def MS |
5644 | DEVLINK_CMD_PARAM_GET, |
5645 | info->snd_portid, info->snd_seq, 0); | |
5646 | if (err) { | |
5647 | nlmsg_free(msg); | |
5648 | return err; | |
5649 | } | |
5650 | ||
5651 | return genlmsg_reply(msg, info); | |
5652 | } | |
5653 | ||
9c54873b | 5654 | static int __devlink_nl_cmd_param_set_doit(struct devlink *devlink, |
c1e5786d | 5655 | unsigned int port_index, |
9c54873b VV |
5656 | struct list_head *param_list, |
5657 | struct genl_info *info, | |
5658 | enum devlink_command cmd) | |
e3b7ca18 | 5659 | { |
e3b7ca18 MS |
5660 | enum devlink_param_type param_type; |
5661 | struct devlink_param_gset_ctx ctx; | |
5662 | enum devlink_param_cmode cmode; | |
5663 | struct devlink_param_item *param_item; | |
5664 | const struct devlink_param *param; | |
5665 | union devlink_param_value value; | |
5666 | int err = 0; | |
5667 | ||
9c54873b | 5668 | param_item = devlink_param_get_from_info(param_list, info); |
e3b7ca18 MS |
5669 | if (!param_item) |
5670 | return -EINVAL; | |
5671 | param = param_item->param; | |
5672 | err = devlink_param_type_get_from_info(info, ¶m_type); | |
5673 | if (err) | |
5674 | return err; | |
5675 | if (param_type != param->type) | |
5676 | return -EINVAL; | |
5677 | err = devlink_param_value_get_from_info(param, info, &value); | |
5678 | if (err) | |
5679 | return err; | |
5680 | if (param->validate) { | |
5681 | err = param->validate(devlink, param->id, value, info->extack); | |
5682 | if (err) | |
5683 | return err; | |
5684 | } | |
5685 | ||
1f7633b5 | 5686 | if (GENL_REQ_ATTR_CHECK(info, DEVLINK_ATTR_PARAM_VALUE_CMODE)) |
e3b7ca18 MS |
5687 | return -EINVAL; |
5688 | cmode = nla_get_u8(info->attrs[DEVLINK_ATTR_PARAM_VALUE_CMODE]); | |
5689 | if (!devlink_param_cmode_is_supported(param, cmode)) | |
5690 | return -EOPNOTSUPP; | |
5691 | ||
5692 | if (cmode == DEVLINK_PARAM_CMODE_DRIVERINIT) { | |
1276534c MS |
5693 | if (param->type == DEVLINK_PARAM_TYPE_STRING) |
5694 | strcpy(param_item->driverinit_value.vstr, value.vstr); | |
5695 | else | |
5696 | param_item->driverinit_value = value; | |
e3b7ca18 MS |
5697 | param_item->driverinit_value_valid = true; |
5698 | } else { | |
5699 | if (!param->set) | |
5700 | return -EOPNOTSUPP; | |
5701 | ctx.val = value; | |
5702 | ctx.cmode = cmode; | |
5703 | err = devlink_param_set(devlink, param, &ctx); | |
5704 | if (err) | |
5705 | return err; | |
5706 | } | |
5707 | ||
c1e5786d | 5708 | devlink_param_notify(devlink, port_index, param_item, cmd); |
e3b7ca18 MS |
5709 | return 0; |
5710 | } | |
5711 | ||
9c54873b VV |
5712 | static int devlink_nl_cmd_param_set_doit(struct sk_buff *skb, |
5713 | struct genl_info *info) | |
5714 | { | |
5715 | struct devlink *devlink = info->user_ptr[0]; | |
5716 | ||
c1e5786d | 5717 | return __devlink_nl_cmd_param_set_doit(devlink, 0, &devlink->param_list, |
9c54873b VV |
5718 | info, DEVLINK_CMD_PARAM_NEW); |
5719 | } | |
5720 | ||
f4601dee VV |
5721 | static int devlink_nl_cmd_port_param_get_dumpit(struct sk_buff *msg, |
5722 | struct netlink_callback *cb) | |
5723 | { | |
146ecbac | 5724 | NL_SET_ERR_MSG_MOD(cb->extack, "Port params are not supported"); |
f4601dee VV |
5725 | return msg->len; |
5726 | } | |
5727 | ||
5728 | static int devlink_nl_cmd_port_param_get_doit(struct sk_buff *skb, | |
5729 | struct genl_info *info) | |
5730 | { | |
146ecbac JP |
5731 | NL_SET_ERR_MSG_MOD(info->extack, "Port params are not supported"); |
5732 | return -EINVAL; | |
f4601dee VV |
5733 | } |
5734 | ||
9c54873b VV |
5735 | static int devlink_nl_cmd_port_param_set_doit(struct sk_buff *skb, |
5736 | struct genl_info *info) | |
5737 | { | |
146ecbac JP |
5738 | NL_SET_ERR_MSG_MOD(info->extack, "Port params are not supported"); |
5739 | return -EINVAL; | |
9c54873b VV |
5740 | } |
5741 | ||
a006d467 AV |
5742 | static int devlink_nl_region_snapshot_id_put(struct sk_buff *msg, |
5743 | struct devlink *devlink, | |
5744 | struct devlink_snapshot *snapshot) | |
5745 | { | |
5746 | struct nlattr *snap_attr; | |
5747 | int err; | |
5748 | ||
ae0be8de | 5749 | snap_attr = nla_nest_start_noflag(msg, DEVLINK_ATTR_REGION_SNAPSHOT); |
a006d467 AV |
5750 | if (!snap_attr) |
5751 | return -EINVAL; | |
5752 | ||
5753 | err = nla_put_u32(msg, DEVLINK_ATTR_REGION_SNAPSHOT_ID, snapshot->id); | |
5754 | if (err) | |
5755 | goto nla_put_failure; | |
5756 | ||
5757 | nla_nest_end(msg, snap_attr); | |
5758 | return 0; | |
5759 | ||
5760 | nla_put_failure: | |
5761 | nla_nest_cancel(msg, snap_attr); | |
5762 | return err; | |
5763 | } | |
5764 | ||
5765 | static int devlink_nl_region_snapshots_id_put(struct sk_buff *msg, | |
5766 | struct devlink *devlink, | |
5767 | struct devlink_region *region) | |
5768 | { | |
5769 | struct devlink_snapshot *snapshot; | |
5770 | struct nlattr *snapshots_attr; | |
5771 | int err; | |
5772 | ||
ae0be8de MK |
5773 | snapshots_attr = nla_nest_start_noflag(msg, |
5774 | DEVLINK_ATTR_REGION_SNAPSHOTS); | |
a006d467 AV |
5775 | if (!snapshots_attr) |
5776 | return -EINVAL; | |
5777 | ||
5778 | list_for_each_entry(snapshot, ®ion->snapshot_list, list) { | |
5779 | err = devlink_nl_region_snapshot_id_put(msg, devlink, snapshot); | |
5780 | if (err) | |
5781 | goto nla_put_failure; | |
5782 | } | |
5783 | ||
5784 | nla_nest_end(msg, snapshots_attr); | |
5785 | return 0; | |
5786 | ||
5787 | nla_put_failure: | |
5788 | nla_nest_cancel(msg, snapshots_attr); | |
5789 | return err; | |
5790 | } | |
5791 | ||
d8db7ea5 AV |
5792 | static int devlink_nl_region_fill(struct sk_buff *msg, struct devlink *devlink, |
5793 | enum devlink_command cmd, u32 portid, | |
5794 | u32 seq, int flags, | |
5795 | struct devlink_region *region) | |
5796 | { | |
5797 | void *hdr; | |
5798 | int err; | |
5799 | ||
5800 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
5801 | if (!hdr) | |
5802 | return -EMSGSIZE; | |
5803 | ||
5804 | err = devlink_nl_put_handle(msg, devlink); | |
5805 | if (err) | |
5806 | goto nla_put_failure; | |
5807 | ||
6c211809 DC |
5808 | if (region->port) { |
5809 | err = nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, | |
5810 | region->port->index); | |
5811 | if (err) | |
544e7c33 | 5812 | goto nla_put_failure; |
6c211809 | 5813 | } |
544e7c33 | 5814 | |
e8937681 | 5815 | err = nla_put_string(msg, DEVLINK_ATTR_REGION_NAME, region->ops->name); |
d8db7ea5 AV |
5816 | if (err) |
5817 | goto nla_put_failure; | |
5818 | ||
5819 | err = nla_put_u64_64bit(msg, DEVLINK_ATTR_REGION_SIZE, | |
5820 | region->size, | |
5821 | DEVLINK_ATTR_PAD); | |
5822 | if (err) | |
5823 | goto nla_put_failure; | |
5824 | ||
a70e3f02 JK |
5825 | err = nla_put_u32(msg, DEVLINK_ATTR_REGION_MAX_SNAPSHOTS, |
5826 | region->max_snapshots); | |
5827 | if (err) | |
5828 | goto nla_put_failure; | |
5829 | ||
a006d467 AV |
5830 | err = devlink_nl_region_snapshots_id_put(msg, devlink, region); |
5831 | if (err) | |
5832 | goto nla_put_failure; | |
5833 | ||
d8db7ea5 AV |
5834 | genlmsg_end(msg, hdr); |
5835 | return 0; | |
5836 | ||
5837 | nla_put_failure: | |
5838 | genlmsg_cancel(msg, hdr); | |
5839 | return err; | |
5840 | } | |
5841 | ||
dd86fec7 JK |
5842 | static struct sk_buff * |
5843 | devlink_nl_region_notify_build(struct devlink_region *region, | |
5844 | struct devlink_snapshot *snapshot, | |
5845 | enum devlink_command cmd, u32 portid, u32 seq) | |
866319bb AV |
5846 | { |
5847 | struct devlink *devlink = region->devlink; | |
5848 | struct sk_buff *msg; | |
5849 | void *hdr; | |
5850 | int err; | |
5851 | ||
866319bb AV |
5852 | |
5853 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
5854 | if (!msg) | |
dd86fec7 | 5855 | return ERR_PTR(-ENOMEM); |
866319bb | 5856 | |
dd86fec7 JK |
5857 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, 0, cmd); |
5858 | if (!hdr) { | |
5859 | err = -EMSGSIZE; | |
866319bb | 5860 | goto out_free_msg; |
dd86fec7 | 5861 | } |
866319bb AV |
5862 | |
5863 | err = devlink_nl_put_handle(msg, devlink); | |
5864 | if (err) | |
5865 | goto out_cancel_msg; | |
5866 | ||
6c211809 DC |
5867 | if (region->port) { |
5868 | err = nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, | |
5869 | region->port->index); | |
5870 | if (err) | |
544e7c33 | 5871 | goto out_cancel_msg; |
6c211809 | 5872 | } |
544e7c33 | 5873 | |
866319bb | 5874 | err = nla_put_string(msg, DEVLINK_ATTR_REGION_NAME, |
e8937681 | 5875 | region->ops->name); |
866319bb AV |
5876 | if (err) |
5877 | goto out_cancel_msg; | |
5878 | ||
5879 | if (snapshot) { | |
5880 | err = nla_put_u32(msg, DEVLINK_ATTR_REGION_SNAPSHOT_ID, | |
5881 | snapshot->id); | |
5882 | if (err) | |
5883 | goto out_cancel_msg; | |
5884 | } else { | |
5885 | err = nla_put_u64_64bit(msg, DEVLINK_ATTR_REGION_SIZE, | |
5886 | region->size, DEVLINK_ATTR_PAD); | |
5887 | if (err) | |
5888 | goto out_cancel_msg; | |
5889 | } | |
5890 | genlmsg_end(msg, hdr); | |
5891 | ||
dd86fec7 | 5892 | return msg; |
866319bb AV |
5893 | |
5894 | out_cancel_msg: | |
5895 | genlmsg_cancel(msg, hdr); | |
5896 | out_free_msg: | |
5897 | nlmsg_free(msg); | |
dd86fec7 JK |
5898 | return ERR_PTR(err); |
5899 | } | |
5900 | ||
5901 | static void devlink_nl_region_notify(struct devlink_region *region, | |
5902 | struct devlink_snapshot *snapshot, | |
5903 | enum devlink_command cmd) | |
5904 | { | |
cf530217 | 5905 | struct devlink *devlink = region->devlink; |
dd86fec7 JK |
5906 | struct sk_buff *msg; |
5907 | ||
5908 | WARN_ON(cmd != DEVLINK_CMD_REGION_NEW && cmd != DEVLINK_CMD_REGION_DEL); | |
ef91abfb LR |
5909 | if (!xa_get_mark(&devlinks, devlink->index, DEVLINK_REGISTERED)) |
5910 | return; | |
dd86fec7 JK |
5911 | |
5912 | msg = devlink_nl_region_notify_build(region, snapshot, cmd, 0, 0); | |
5913 | if (IS_ERR(msg)) | |
5914 | return; | |
5915 | ||
cf530217 LR |
5916 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), msg, |
5917 | 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
866319bb AV |
5918 | } |
5919 | ||
12102436 JK |
5920 | /** |
5921 | * __devlink_snapshot_id_increment - Increment number of snapshots using an id | |
5922 | * @devlink: devlink instance | |
5923 | * @id: the snapshot id | |
5924 | * | |
5925 | * Track when a new snapshot begins using an id. Load the count for the | |
5926 | * given id from the snapshot xarray, increment it, and store it back. | |
5927 | * | |
5928 | * Called when a new snapshot is created with the given id. | |
5929 | * | |
5930 | * The id *must* have been previously allocated by | |
5931 | * devlink_region_snapshot_id_get(). | |
5932 | * | |
5933 | * Returns 0 on success, or an error on failure. | |
5934 | */ | |
5935 | static int __devlink_snapshot_id_increment(struct devlink *devlink, u32 id) | |
5936 | { | |
5937 | unsigned long count; | |
5938 | void *p; | |
5502e871 | 5939 | int err; |
12102436 | 5940 | |
5502e871 | 5941 | xa_lock(&devlink->snapshot_ids); |
12102436 | 5942 | p = xa_load(&devlink->snapshot_ids, id); |
5502e871 JP |
5943 | if (WARN_ON(!p)) { |
5944 | err = -EINVAL; | |
5945 | goto unlock; | |
5946 | } | |
12102436 | 5947 | |
5502e871 JP |
5948 | if (WARN_ON(!xa_is_value(p))) { |
5949 | err = -EINVAL; | |
5950 | goto unlock; | |
5951 | } | |
12102436 JK |
5952 | |
5953 | count = xa_to_value(p); | |
5954 | count++; | |
5955 | ||
5502e871 JP |
5956 | err = xa_err(__xa_store(&devlink->snapshot_ids, id, xa_mk_value(count), |
5957 | GFP_ATOMIC)); | |
5958 | unlock: | |
5959 | xa_unlock(&devlink->snapshot_ids); | |
5960 | return err; | |
12102436 JK |
5961 | } |
5962 | ||
5963 | /** | |
5964 | * __devlink_snapshot_id_decrement - Decrease number of snapshots using an id | |
5965 | * @devlink: devlink instance | |
5966 | * @id: the snapshot id | |
5967 | * | |
5968 | * Track when a snapshot is deleted and stops using an id. Load the count | |
5969 | * for the given id from the snapshot xarray, decrement it, and store it | |
5970 | * back. | |
5971 | * | |
5972 | * If the count reaches zero, erase this id from the xarray, freeing it | |
5973 | * up for future re-use by devlink_region_snapshot_id_get(). | |
5974 | * | |
5975 | * Called when a snapshot using the given id is deleted, and when the | |
5976 | * initial allocator of the id is finished using it. | |
5977 | */ | |
5978 | static void __devlink_snapshot_id_decrement(struct devlink *devlink, u32 id) | |
5979 | { | |
5980 | unsigned long count; | |
5981 | void *p; | |
5982 | ||
5502e871 | 5983 | xa_lock(&devlink->snapshot_ids); |
12102436 JK |
5984 | p = xa_load(&devlink->snapshot_ids, id); |
5985 | if (WARN_ON(!p)) | |
5502e871 | 5986 | goto unlock; |
12102436 JK |
5987 | |
5988 | if (WARN_ON(!xa_is_value(p))) | |
5502e871 | 5989 | goto unlock; |
12102436 JK |
5990 | |
5991 | count = xa_to_value(p); | |
5992 | ||
5993 | if (count > 1) { | |
5994 | count--; | |
5502e871 JP |
5995 | __xa_store(&devlink->snapshot_ids, id, xa_mk_value(count), |
5996 | GFP_ATOMIC); | |
12102436 JK |
5997 | } else { |
5998 | /* If this was the last user, we can erase this id */ | |
5502e871 | 5999 | __xa_erase(&devlink->snapshot_ids, id); |
12102436 | 6000 | } |
5502e871 JP |
6001 | unlock: |
6002 | xa_unlock(&devlink->snapshot_ids); | |
12102436 JK |
6003 | } |
6004 | ||
b9a17abf JK |
6005 | /** |
6006 | * __devlink_snapshot_id_insert - Insert a specific snapshot ID | |
6007 | * @devlink: devlink instance | |
6008 | * @id: the snapshot id | |
6009 | * | |
6010 | * Mark the given snapshot id as used by inserting a zero value into the | |
6011 | * snapshot xarray. | |
6012 | * | |
6013 | * This must be called while holding the devlink instance lock. Unlike | |
6014 | * devlink_snapshot_id_get, the initial reference count is zero, not one. | |
6015 | * It is expected that the id will immediately be used before | |
6016 | * releasing the devlink instance lock. | |
6017 | * | |
6018 | * Returns zero on success, or an error code if the snapshot id could not | |
6019 | * be inserted. | |
6020 | */ | |
6021 | static int __devlink_snapshot_id_insert(struct devlink *devlink, u32 id) | |
6022 | { | |
5502e871 | 6023 | int err; |
b9a17abf | 6024 | |
5502e871 JP |
6025 | xa_lock(&devlink->snapshot_ids); |
6026 | if (xa_load(&devlink->snapshot_ids, id)) { | |
6027 | xa_unlock(&devlink->snapshot_ids); | |
b9a17abf | 6028 | return -EEXIST; |
5502e871 JP |
6029 | } |
6030 | err = xa_err(__xa_store(&devlink->snapshot_ids, id, xa_mk_value(0), | |
6031 | GFP_ATOMIC)); | |
6032 | xa_unlock(&devlink->snapshot_ids); | |
6033 | return err; | |
b9a17abf JK |
6034 | } |
6035 | ||
7000108f JK |
6036 | /** |
6037 | * __devlink_region_snapshot_id_get - get snapshot ID | |
6038 | * @devlink: devlink instance | |
7ef19d3b | 6039 | * @id: storage to return snapshot id |
7000108f | 6040 | * |
7ef19d3b JK |
6041 | * Allocates a new snapshot id. Returns zero on success, or a negative |
6042 | * error on failure. Must be called while holding the devlink instance | |
6043 | * lock. | |
12102436 JK |
6044 | * |
6045 | * Snapshot IDs are tracked using an xarray which stores the number of | |
6046 | * users of the snapshot id. | |
6047 | * | |
6048 | * Note that the caller of this function counts as a 'user', in order to | |
6049 | * avoid race conditions. The caller must release its hold on the | |
6050 | * snapshot by using devlink_region_snapshot_id_put. | |
7000108f | 6051 | */ |
7ef19d3b | 6052 | static int __devlink_region_snapshot_id_get(struct devlink *devlink, u32 *id) |
7000108f | 6053 | { |
12102436 JK |
6054 | return xa_alloc(&devlink->snapshot_ids, id, xa_mk_value(1), |
6055 | xa_limit_32b, GFP_KERNEL); | |
7000108f JK |
6056 | } |
6057 | ||
cf80faee JK |
6058 | /** |
6059 | * __devlink_region_snapshot_create - create a new snapshot | |
6060 | * This will add a new snapshot of a region. The snapshot | |
6061 | * will be stored on the region struct and can be accessed | |
6062 | * from devlink. This is useful for future analyses of snapshots. | |
6063 | * Multiple snapshots can be created on a region. | |
6064 | * The @snapshot_id should be obtained using the getter function. | |
6065 | * | |
2dec18ad | 6066 | * Must be called only while holding the region snapshot lock. |
cf80faee JK |
6067 | * |
6068 | * @region: devlink region of the snapshot | |
6069 | * @data: snapshot data | |
6070 | * @snapshot_id: snapshot id to be created | |
6071 | */ | |
6072 | static int | |
6073 | __devlink_region_snapshot_create(struct devlink_region *region, | |
6074 | u8 *data, u32 snapshot_id) | |
6075 | { | |
6076 | struct devlink *devlink = region->devlink; | |
6077 | struct devlink_snapshot *snapshot; | |
12102436 | 6078 | int err; |
cf80faee | 6079 | |
2dec18ad | 6080 | lockdep_assert_held(®ion->snapshot_lock); |
cf80faee JK |
6081 | |
6082 | /* check if region can hold one more snapshot */ | |
6083 | if (region->cur_snapshots == region->max_snapshots) | |
47a39f61 | 6084 | return -ENOSPC; |
cf80faee JK |
6085 | |
6086 | if (devlink_region_snapshot_get_by_id(region, snapshot_id)) | |
6087 | return -EEXIST; | |
6088 | ||
6089 | snapshot = kzalloc(sizeof(*snapshot), GFP_KERNEL); | |
6090 | if (!snapshot) | |
6091 | return -ENOMEM; | |
6092 | ||
12102436 JK |
6093 | err = __devlink_snapshot_id_increment(devlink, snapshot_id); |
6094 | if (err) | |
6095 | goto err_snapshot_id_increment; | |
6096 | ||
cf80faee JK |
6097 | snapshot->id = snapshot_id; |
6098 | snapshot->region = region; | |
6099 | snapshot->data = data; | |
6100 | ||
6101 | list_add_tail(&snapshot->list, ®ion->snapshot_list); | |
6102 | ||
6103 | region->cur_snapshots++; | |
6104 | ||
6105 | devlink_nl_region_notify(region, snapshot, DEVLINK_CMD_REGION_NEW); | |
6106 | return 0; | |
12102436 JK |
6107 | |
6108 | err_snapshot_id_increment: | |
6109 | kfree(snapshot); | |
6110 | return err; | |
cf80faee JK |
6111 | } |
6112 | ||
92b49822 JP |
6113 | static void devlink_region_snapshot_del(struct devlink_region *region, |
6114 | struct devlink_snapshot *snapshot) | |
6115 | { | |
12102436 JK |
6116 | struct devlink *devlink = region->devlink; |
6117 | ||
2dec18ad | 6118 | lockdep_assert_held(®ion->snapshot_lock); |
12102436 | 6119 | |
92b49822 JP |
6120 | devlink_nl_region_notify(region, snapshot, DEVLINK_CMD_REGION_DEL); |
6121 | region->cur_snapshots--; | |
6122 | list_del(&snapshot->list); | |
a0a09f6b | 6123 | region->ops->destructor(snapshot->data); |
12102436 | 6124 | __devlink_snapshot_id_decrement(devlink, snapshot->id); |
92b49822 JP |
6125 | kfree(snapshot); |
6126 | } | |
6127 | ||
d8db7ea5 AV |
6128 | static int devlink_nl_cmd_region_get_doit(struct sk_buff *skb, |
6129 | struct genl_info *info) | |
6130 | { | |
6131 | struct devlink *devlink = info->user_ptr[0]; | |
544e7c33 | 6132 | struct devlink_port *port = NULL; |
d8db7ea5 AV |
6133 | struct devlink_region *region; |
6134 | const char *region_name; | |
6135 | struct sk_buff *msg; | |
544e7c33 | 6136 | unsigned int index; |
d8db7ea5 AV |
6137 | int err; |
6138 | ||
1f7633b5 | 6139 | if (GENL_REQ_ATTR_CHECK(info, DEVLINK_ATTR_REGION_NAME)) |
d8db7ea5 AV |
6140 | return -EINVAL; |
6141 | ||
544e7c33 AL |
6142 | if (info->attrs[DEVLINK_ATTR_PORT_INDEX]) { |
6143 | index = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_INDEX]); | |
6144 | ||
6145 | port = devlink_port_get_by_index(devlink, index); | |
6146 | if (!port) | |
6147 | return -ENODEV; | |
6148 | } | |
6149 | ||
d8db7ea5 | 6150 | region_name = nla_data(info->attrs[DEVLINK_ATTR_REGION_NAME]); |
544e7c33 AL |
6151 | if (port) |
6152 | region = devlink_port_region_get_by_name(port, region_name); | |
6153 | else | |
6154 | region = devlink_region_get_by_name(devlink, region_name); | |
6155 | ||
d8db7ea5 AV |
6156 | if (!region) |
6157 | return -EINVAL; | |
6158 | ||
6159 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
6160 | if (!msg) | |
6161 | return -ENOMEM; | |
6162 | ||
6163 | err = devlink_nl_region_fill(msg, devlink, DEVLINK_CMD_REGION_GET, | |
6164 | info->snd_portid, info->snd_seq, 0, | |
6165 | region); | |
6166 | if (err) { | |
6167 | nlmsg_free(msg); | |
6168 | return err; | |
6169 | } | |
6170 | ||
6171 | return genlmsg_reply(msg, info); | |
6172 | } | |
6173 | ||
544e7c33 AL |
6174 | static int devlink_nl_cmd_region_get_port_dumpit(struct sk_buff *msg, |
6175 | struct netlink_callback *cb, | |
6176 | struct devlink_port *port, | |
6177 | int *idx, | |
6178 | int start) | |
6179 | { | |
6180 | struct devlink_region *region; | |
6181 | int err = 0; | |
6182 | ||
6183 | list_for_each_entry(region, &port->region_list, list) { | |
6184 | if (*idx < start) { | |
6185 | (*idx)++; | |
6186 | continue; | |
6187 | } | |
6188 | err = devlink_nl_region_fill(msg, port->devlink, | |
6189 | DEVLINK_CMD_REGION_GET, | |
6190 | NETLINK_CB(cb->skb).portid, | |
6191 | cb->nlh->nlmsg_seq, | |
6192 | NLM_F_MULTI, region); | |
6193 | if (err) | |
6194 | goto out; | |
6195 | (*idx)++; | |
6196 | } | |
6197 | ||
6198 | out: | |
6199 | return err; | |
6200 | } | |
6201 | ||
6202 | static int devlink_nl_cmd_region_get_devlink_dumpit(struct sk_buff *msg, | |
6203 | struct netlink_callback *cb, | |
6204 | struct devlink *devlink, | |
6205 | int *idx, | |
6206 | int start) | |
6207 | { | |
6208 | struct devlink_region *region; | |
6209 | struct devlink_port *port; | |
6210 | int err = 0; | |
6211 | ||
7715023a | 6212 | devl_lock(devlink); |
544e7c33 AL |
6213 | list_for_each_entry(region, &devlink->region_list, list) { |
6214 | if (*idx < start) { | |
6215 | (*idx)++; | |
6216 | continue; | |
6217 | } | |
6218 | err = devlink_nl_region_fill(msg, devlink, | |
6219 | DEVLINK_CMD_REGION_GET, | |
6220 | NETLINK_CB(cb->skb).portid, | |
6221 | cb->nlh->nlmsg_seq, | |
6222 | NLM_F_MULTI, region); | |
6223 | if (err) | |
6224 | goto out; | |
6225 | (*idx)++; | |
6226 | } | |
6227 | ||
6228 | list_for_each_entry(port, &devlink->port_list, list) { | |
6229 | err = devlink_nl_cmd_region_get_port_dumpit(msg, cb, port, idx, | |
6230 | start); | |
6231 | if (err) | |
6232 | goto out; | |
6233 | } | |
6234 | ||
6235 | out: | |
7715023a | 6236 | devl_unlock(devlink); |
544e7c33 AL |
6237 | return err; |
6238 | } | |
6239 | ||
d8db7ea5 AV |
6240 | static int devlink_nl_cmd_region_get_dumpit(struct sk_buff *msg, |
6241 | struct netlink_callback *cb) | |
6242 | { | |
d8db7ea5 AV |
6243 | struct devlink *devlink; |
6244 | int start = cb->args[0]; | |
11a861d7 | 6245 | unsigned long index; |
d8db7ea5 | 6246 | int idx = 0; |
437ebfd9 | 6247 | int err = 0; |
d8db7ea5 | 6248 | |
294c4f57 | 6249 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
544e7c33 AL |
6250 | err = devlink_nl_cmd_region_get_devlink_dumpit(msg, cb, devlink, |
6251 | &idx, start); | |
437ebfd9 | 6252 | devlink_put(devlink); |
544e7c33 AL |
6253 | if (err) |
6254 | goto out; | |
d8db7ea5 AV |
6255 | } |
6256 | out: | |
d8db7ea5 AV |
6257 | cb->args[0] = idx; |
6258 | return msg->len; | |
6259 | } | |
6260 | ||
866319bb AV |
6261 | static int devlink_nl_cmd_region_del(struct sk_buff *skb, |
6262 | struct genl_info *info) | |
6263 | { | |
6264 | struct devlink *devlink = info->user_ptr[0]; | |
6265 | struct devlink_snapshot *snapshot; | |
544e7c33 | 6266 | struct devlink_port *port = NULL; |
866319bb AV |
6267 | struct devlink_region *region; |
6268 | const char *region_name; | |
544e7c33 | 6269 | unsigned int index; |
866319bb AV |
6270 | u32 snapshot_id; |
6271 | ||
1f7633b5 JK |
6272 | if (GENL_REQ_ATTR_CHECK(info, DEVLINK_ATTR_REGION_NAME) || |
6273 | GENL_REQ_ATTR_CHECK(info, DEVLINK_ATTR_REGION_SNAPSHOT_ID)) | |
866319bb AV |
6274 | return -EINVAL; |
6275 | ||
6276 | region_name = nla_data(info->attrs[DEVLINK_ATTR_REGION_NAME]); | |
6277 | snapshot_id = nla_get_u32(info->attrs[DEVLINK_ATTR_REGION_SNAPSHOT_ID]); | |
6278 | ||
544e7c33 AL |
6279 | if (info->attrs[DEVLINK_ATTR_PORT_INDEX]) { |
6280 | index = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_INDEX]); | |
6281 | ||
6282 | port = devlink_port_get_by_index(devlink, index); | |
6283 | if (!port) | |
6284 | return -ENODEV; | |
6285 | } | |
6286 | ||
6287 | if (port) | |
6288 | region = devlink_port_region_get_by_name(port, region_name); | |
6289 | else | |
6290 | region = devlink_region_get_by_name(devlink, region_name); | |
6291 | ||
866319bb AV |
6292 | if (!region) |
6293 | return -EINVAL; | |
6294 | ||
2dec18ad | 6295 | mutex_lock(®ion->snapshot_lock); |
866319bb | 6296 | snapshot = devlink_region_snapshot_get_by_id(region, snapshot_id); |
2dec18ad JP |
6297 | if (!snapshot) { |
6298 | mutex_unlock(®ion->snapshot_lock); | |
866319bb | 6299 | return -EINVAL; |
2dec18ad | 6300 | } |
866319bb | 6301 | |
92b49822 | 6302 | devlink_region_snapshot_del(region, snapshot); |
2dec18ad | 6303 | mutex_unlock(®ion->snapshot_lock); |
866319bb AV |
6304 | return 0; |
6305 | } | |
6306 | ||
b9a17abf JK |
6307 | static int |
6308 | devlink_nl_cmd_region_new(struct sk_buff *skb, struct genl_info *info) | |
6309 | { | |
6310 | struct devlink *devlink = info->user_ptr[0]; | |
043b3e22 | 6311 | struct devlink_snapshot *snapshot; |
544e7c33 | 6312 | struct devlink_port *port = NULL; |
043b3e22 | 6313 | struct nlattr *snapshot_id_attr; |
b9a17abf JK |
6314 | struct devlink_region *region; |
6315 | const char *region_name; | |
544e7c33 | 6316 | unsigned int index; |
b9a17abf JK |
6317 | u32 snapshot_id; |
6318 | u8 *data; | |
6319 | int err; | |
6320 | ||
1f7633b5 | 6321 | if (GENL_REQ_ATTR_CHECK(info, DEVLINK_ATTR_REGION_NAME)) { |
b9a17abf JK |
6322 | NL_SET_ERR_MSG_MOD(info->extack, "No region name provided"); |
6323 | return -EINVAL; | |
6324 | } | |
6325 | ||
b9a17abf | 6326 | region_name = nla_data(info->attrs[DEVLINK_ATTR_REGION_NAME]); |
544e7c33 AL |
6327 | |
6328 | if (info->attrs[DEVLINK_ATTR_PORT_INDEX]) { | |
6329 | index = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_INDEX]); | |
6330 | ||
6331 | port = devlink_port_get_by_index(devlink, index); | |
6332 | if (!port) | |
6333 | return -ENODEV; | |
6334 | } | |
6335 | ||
6336 | if (port) | |
6337 | region = devlink_port_region_get_by_name(port, region_name); | |
6338 | else | |
6339 | region = devlink_region_get_by_name(devlink, region_name); | |
6340 | ||
b9a17abf JK |
6341 | if (!region) { |
6342 | NL_SET_ERR_MSG_MOD(info->extack, "The requested region does not exist"); | |
6343 | return -EINVAL; | |
6344 | } | |
6345 | ||
6346 | if (!region->ops->snapshot) { | |
6347 | NL_SET_ERR_MSG_MOD(info->extack, "The requested region does not support taking an immediate snapshot"); | |
6348 | return -EOPNOTSUPP; | |
6349 | } | |
6350 | ||
2dec18ad JP |
6351 | mutex_lock(®ion->snapshot_lock); |
6352 | ||
b9a17abf JK |
6353 | if (region->cur_snapshots == region->max_snapshots) { |
6354 | NL_SET_ERR_MSG_MOD(info->extack, "The region has reached the maximum number of stored snapshots"); | |
2dec18ad JP |
6355 | err = -ENOSPC; |
6356 | goto unlock; | |
b9a17abf JK |
6357 | } |
6358 | ||
043b3e22 JK |
6359 | snapshot_id_attr = info->attrs[DEVLINK_ATTR_REGION_SNAPSHOT_ID]; |
6360 | if (snapshot_id_attr) { | |
6361 | snapshot_id = nla_get_u32(snapshot_id_attr); | |
b9a17abf | 6362 | |
043b3e22 JK |
6363 | if (devlink_region_snapshot_get_by_id(region, snapshot_id)) { |
6364 | NL_SET_ERR_MSG_MOD(info->extack, "The requested snapshot id is already in use"); | |
2dec18ad JP |
6365 | err = -EEXIST; |
6366 | goto unlock; | |
043b3e22 | 6367 | } |
b9a17abf | 6368 | |
043b3e22 JK |
6369 | err = __devlink_snapshot_id_insert(devlink, snapshot_id); |
6370 | if (err) | |
2dec18ad | 6371 | goto unlock; |
043b3e22 JK |
6372 | } else { |
6373 | err = __devlink_region_snapshot_id_get(devlink, &snapshot_id); | |
6374 | if (err) { | |
6375 | NL_SET_ERR_MSG_MOD(info->extack, "Failed to allocate a new snapshot id"); | |
2dec18ad | 6376 | goto unlock; |
043b3e22 JK |
6377 | } |
6378 | } | |
b9a17abf | 6379 | |
544e7c33 AL |
6380 | if (port) |
6381 | err = region->port_ops->snapshot(port, region->port_ops, | |
6382 | info->extack, &data); | |
6383 | else | |
6384 | err = region->ops->snapshot(devlink, region->ops, | |
6385 | info->extack, &data); | |
b9a17abf JK |
6386 | if (err) |
6387 | goto err_snapshot_capture; | |
6388 | ||
6389 | err = __devlink_region_snapshot_create(region, data, snapshot_id); | |
6390 | if (err) | |
6391 | goto err_snapshot_create; | |
6392 | ||
043b3e22 JK |
6393 | if (!snapshot_id_attr) { |
6394 | struct sk_buff *msg; | |
6395 | ||
6396 | snapshot = devlink_region_snapshot_get_by_id(region, | |
6397 | snapshot_id); | |
80ef9286 AF |
6398 | if (WARN_ON(!snapshot)) { |
6399 | err = -EINVAL; | |
6400 | goto unlock; | |
6401 | } | |
043b3e22 JK |
6402 | |
6403 | msg = devlink_nl_region_notify_build(region, snapshot, | |
6404 | DEVLINK_CMD_REGION_NEW, | |
6405 | info->snd_portid, | |
6406 | info->snd_seq); | |
6407 | err = PTR_ERR_OR_ZERO(msg); | |
6408 | if (err) | |
6409 | goto err_notify; | |
6410 | ||
6411 | err = genlmsg_reply(msg, info); | |
6412 | if (err) | |
6413 | goto err_notify; | |
6414 | } | |
6415 | ||
2dec18ad | 6416 | mutex_unlock(®ion->snapshot_lock); |
b9a17abf JK |
6417 | return 0; |
6418 | ||
6419 | err_snapshot_create: | |
6420 | region->ops->destructor(data); | |
6421 | err_snapshot_capture: | |
6422 | __devlink_snapshot_id_decrement(devlink, snapshot_id); | |
2dec18ad | 6423 | mutex_unlock(®ion->snapshot_lock); |
b9a17abf | 6424 | return err; |
043b3e22 JK |
6425 | |
6426 | err_notify: | |
6427 | devlink_region_snapshot_del(region, snapshot); | |
2dec18ad JP |
6428 | unlock: |
6429 | mutex_unlock(®ion->snapshot_lock); | |
043b3e22 | 6430 | return err; |
b9a17abf JK |
6431 | } |
6432 | ||
4e54795a AV |
6433 | static int devlink_nl_cmd_region_read_chunk_fill(struct sk_buff *msg, |
6434 | struct devlink *devlink, | |
6435 | u8 *chunk, u32 chunk_size, | |
6436 | u64 addr) | |
6437 | { | |
6438 | struct nlattr *chunk_attr; | |
6439 | int err; | |
6440 | ||
ae0be8de | 6441 | chunk_attr = nla_nest_start_noflag(msg, DEVLINK_ATTR_REGION_CHUNK); |
4e54795a AV |
6442 | if (!chunk_attr) |
6443 | return -EINVAL; | |
6444 | ||
6445 | err = nla_put(msg, DEVLINK_ATTR_REGION_CHUNK_DATA, chunk_size, chunk); | |
6446 | if (err) | |
6447 | goto nla_put_failure; | |
6448 | ||
6449 | err = nla_put_u64_64bit(msg, DEVLINK_ATTR_REGION_CHUNK_ADDR, addr, | |
6450 | DEVLINK_ATTR_PAD); | |
6451 | if (err) | |
6452 | goto nla_put_failure; | |
6453 | ||
6454 | nla_nest_end(msg, chunk_attr); | |
6455 | return 0; | |
6456 | ||
6457 | nla_put_failure: | |
6458 | nla_nest_cancel(msg, chunk_attr); | |
6459 | return err; | |
6460 | } | |
6461 | ||
6462 | #define DEVLINK_REGION_READ_CHUNK_SIZE 256 | |
6463 | ||
6464 | static int devlink_nl_region_read_snapshot_fill(struct sk_buff *skb, | |
6465 | struct devlink *devlink, | |
6466 | struct devlink_region *region, | |
6467 | struct nlattr **attrs, | |
6468 | u64 start_offset, | |
6469 | u64 end_offset, | |
4e54795a AV |
6470 | u64 *new_offset) |
6471 | { | |
6472 | struct devlink_snapshot *snapshot; | |
6473 | u64 curr_offset = start_offset; | |
6474 | u32 snapshot_id; | |
6475 | int err = 0; | |
6476 | ||
6477 | *new_offset = start_offset; | |
6478 | ||
6479 | snapshot_id = nla_get_u32(attrs[DEVLINK_ATTR_REGION_SNAPSHOT_ID]); | |
6480 | snapshot = devlink_region_snapshot_get_by_id(region, snapshot_id); | |
6481 | if (!snapshot) | |
6482 | return -EINVAL; | |
6483 | ||
4e54795a AV |
6484 | while (curr_offset < end_offset) { |
6485 | u32 data_size; | |
6486 | u8 *data; | |
6487 | ||
28e0c250 JK |
6488 | data_size = min_t(u32, end_offset - curr_offset, |
6489 | DEVLINK_REGION_READ_CHUNK_SIZE); | |
4e54795a AV |
6490 | |
6491 | data = &snapshot->data[curr_offset]; | |
6492 | err = devlink_nl_cmd_region_read_chunk_fill(skb, devlink, | |
6493 | data, data_size, | |
6494 | curr_offset); | |
6495 | if (err) | |
6496 | break; | |
6497 | ||
6498 | curr_offset += data_size; | |
6499 | } | |
6500 | *new_offset = curr_offset; | |
6501 | ||
6502 | return err; | |
6503 | } | |
6504 | ||
6505 | static int devlink_nl_cmd_region_read_dumpit(struct sk_buff *skb, | |
6506 | struct netlink_callback *cb) | |
6507 | { | |
ee85da53 | 6508 | const struct genl_dumpit_info *info = genl_dumpit_info(cb); |
5a46b062 | 6509 | u64 ret_offset, start_offset, end_offset = U64_MAX; |
611fd12c | 6510 | struct nlattr *chunks_attr, *region_attr; |
ee85da53 | 6511 | struct nlattr **attrs = info->attrs; |
544e7c33 | 6512 | struct devlink_port *port = NULL; |
4e54795a | 6513 | struct devlink_region *region; |
4e54795a AV |
6514 | const char *region_name; |
6515 | struct devlink *devlink; | |
544e7c33 | 6516 | unsigned int index; |
4e54795a AV |
6517 | void *hdr; |
6518 | int err; | |
6519 | ||
6520 | start_offset = *((u64 *)&cb->args[0]); | |
6521 | ||
4e54795a | 6522 | devlink = devlink_get_from_attrs(sock_net(cb->skb->sk), attrs); |
d3efc2a6 JP |
6523 | if (IS_ERR(devlink)) |
6524 | return PTR_ERR(devlink); | |
4e54795a | 6525 | |
7715023a | 6526 | devl_lock(devlink); |
4e54795a | 6527 | |
611fd12c JK |
6528 | if (!attrs[DEVLINK_ATTR_REGION_NAME]) { |
6529 | NL_SET_ERR_MSG(cb->extack, "No region name provided"); | |
6530 | err = -EINVAL; | |
6531 | goto out_unlock; | |
6532 | } | |
6533 | ||
6534 | if (!attrs[DEVLINK_ATTR_REGION_SNAPSHOT_ID]) { | |
6535 | NL_SET_ERR_MSG(cb->extack, "No snapshot id provided"); | |
fdd41ec2 | 6536 | err = -EINVAL; |
4e54795a | 6537 | goto out_unlock; |
fdd41ec2 | 6538 | } |
4e54795a | 6539 | |
544e7c33 AL |
6540 | if (info->attrs[DEVLINK_ATTR_PORT_INDEX]) { |
6541 | index = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_INDEX]); | |
6542 | ||
6543 | port = devlink_port_get_by_index(devlink, index); | |
0d8cb946 DC |
6544 | if (!port) { |
6545 | err = -ENODEV; | |
6546 | goto out_unlock; | |
6547 | } | |
544e7c33 AL |
6548 | } |
6549 | ||
611fd12c JK |
6550 | region_attr = attrs[DEVLINK_ATTR_REGION_NAME]; |
6551 | region_name = nla_data(region_attr); | |
544e7c33 AL |
6552 | |
6553 | if (port) | |
6554 | region = devlink_port_region_get_by_name(port, region_name); | |
6555 | else | |
6556 | region = devlink_region_get_by_name(devlink, region_name); | |
6557 | ||
fdd41ec2 | 6558 | if (!region) { |
611fd12c | 6559 | NL_SET_ERR_MSG_ATTR(cb->extack, region_attr, "Requested region does not exist"); |
fdd41ec2 | 6560 | err = -EINVAL; |
4e54795a | 6561 | goto out_unlock; |
fdd41ec2 | 6562 | } |
4e54795a | 6563 | |
5a46b062 JK |
6564 | if (attrs[DEVLINK_ATTR_REGION_CHUNK_ADDR] && |
6565 | attrs[DEVLINK_ATTR_REGION_CHUNK_LEN]) { | |
6566 | if (!start_offset) | |
6567 | start_offset = | |
6568 | nla_get_u64(attrs[DEVLINK_ATTR_REGION_CHUNK_ADDR]); | |
6569 | ||
6570 | end_offset = nla_get_u64(attrs[DEVLINK_ATTR_REGION_CHUNK_ADDR]); | |
6571 | end_offset += nla_get_u64(attrs[DEVLINK_ATTR_REGION_CHUNK_LEN]); | |
6572 | } | |
6573 | ||
6574 | if (end_offset > region->size) | |
6575 | end_offset = region->size; | |
6576 | ||
d5b90e99 | 6577 | /* return 0 if there is no further data to read */ |
5a46b062 | 6578 | if (start_offset == end_offset) { |
d5b90e99 JK |
6579 | err = 0; |
6580 | goto out_unlock; | |
6581 | } | |
6582 | ||
4e54795a AV |
6583 | hdr = genlmsg_put(skb, NETLINK_CB(cb->skb).portid, cb->nlh->nlmsg_seq, |
6584 | &devlink_nl_family, NLM_F_ACK | NLM_F_MULTI, | |
6585 | DEVLINK_CMD_REGION_READ); | |
fdd41ec2 PP |
6586 | if (!hdr) { |
6587 | err = -EMSGSIZE; | |
4e54795a | 6588 | goto out_unlock; |
fdd41ec2 | 6589 | } |
4e54795a AV |
6590 | |
6591 | err = devlink_nl_put_handle(skb, devlink); | |
6592 | if (err) | |
6593 | goto nla_put_failure; | |
6594 | ||
6c211809 DC |
6595 | if (region->port) { |
6596 | err = nla_put_u32(skb, DEVLINK_ATTR_PORT_INDEX, | |
6597 | region->port->index); | |
6598 | if (err) | |
544e7c33 | 6599 | goto nla_put_failure; |
6c211809 | 6600 | } |
544e7c33 | 6601 | |
4e54795a AV |
6602 | err = nla_put_string(skb, DEVLINK_ATTR_REGION_NAME, region_name); |
6603 | if (err) | |
6604 | goto nla_put_failure; | |
6605 | ||
ae0be8de | 6606 | chunks_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_REGION_CHUNKS); |
fdd41ec2 PP |
6607 | if (!chunks_attr) { |
6608 | err = -EMSGSIZE; | |
4e54795a | 6609 | goto nla_put_failure; |
fdd41ec2 | 6610 | } |
4e54795a | 6611 | |
4e54795a AV |
6612 | err = devlink_nl_region_read_snapshot_fill(skb, devlink, |
6613 | region, attrs, | |
6614 | start_offset, | |
5a46b062 | 6615 | end_offset, &ret_offset); |
4e54795a AV |
6616 | |
6617 | if (err && err != -EMSGSIZE) | |
6618 | goto nla_put_failure; | |
6619 | ||
6620 | /* Check if there was any progress done to prevent infinite loop */ | |
fdd41ec2 PP |
6621 | if (ret_offset == start_offset) { |
6622 | err = -EINVAL; | |
4e54795a | 6623 | goto nla_put_failure; |
fdd41ec2 | 6624 | } |
4e54795a AV |
6625 | |
6626 | *((u64 *)&cb->args[0]) = ret_offset; | |
6627 | ||
6628 | nla_nest_end(skb, chunks_attr); | |
6629 | genlmsg_end(skb, hdr); | |
7715023a | 6630 | devl_unlock(devlink); |
437ebfd9 | 6631 | devlink_put(devlink); |
4e54795a AV |
6632 | return skb->len; |
6633 | ||
6634 | nla_put_failure: | |
6635 | genlmsg_cancel(skb, hdr); | |
6636 | out_unlock: | |
7715023a | 6637 | devl_unlock(devlink); |
437ebfd9 | 6638 | devlink_put(devlink); |
fdd41ec2 | 6639 | return err; |
4e54795a AV |
6640 | } |
6641 | ||
f9cf2288 JK |
6642 | int devlink_info_driver_name_put(struct devlink_info_req *req, const char *name) |
6643 | { | |
f94b6063 JP |
6644 | if (!req->msg) |
6645 | return 0; | |
f9cf2288 JK |
6646 | return nla_put_string(req->msg, DEVLINK_ATTR_INFO_DRIVER_NAME, name); |
6647 | } | |
6648 | EXPORT_SYMBOL_GPL(devlink_info_driver_name_put); | |
6649 | ||
6650 | int devlink_info_serial_number_put(struct devlink_info_req *req, const char *sn) | |
6651 | { | |
f94b6063 JP |
6652 | if (!req->msg) |
6653 | return 0; | |
f9cf2288 JK |
6654 | return nla_put_string(req->msg, DEVLINK_ATTR_INFO_SERIAL_NUMBER, sn); |
6655 | } | |
6656 | EXPORT_SYMBOL_GPL(devlink_info_serial_number_put); | |
6657 | ||
b5872cd0 VV |
6658 | int devlink_info_board_serial_number_put(struct devlink_info_req *req, |
6659 | const char *bsn) | |
6660 | { | |
f94b6063 JP |
6661 | if (!req->msg) |
6662 | return 0; | |
b5872cd0 VV |
6663 | return nla_put_string(req->msg, DEVLINK_ATTR_INFO_BOARD_SERIAL_NUMBER, |
6664 | bsn); | |
6665 | } | |
6666 | EXPORT_SYMBOL_GPL(devlink_info_board_serial_number_put); | |
6667 | ||
fc6fae7d JK |
6668 | static int devlink_info_version_put(struct devlink_info_req *req, int attr, |
6669 | const char *version_name, | |
bb670123 JP |
6670 | const char *version_value, |
6671 | enum devlink_info_version_type version_type) | |
fc6fae7d JK |
6672 | { |
6673 | struct nlattr *nest; | |
6674 | int err; | |
6675 | ||
f94b6063 JP |
6676 | if (req->version_cb) |
6677 | req->version_cb(version_name, version_type, | |
6678 | req->version_cb_priv); | |
6679 | ||
6680 | if (!req->msg) | |
6681 | return 0; | |
6682 | ||
ae0be8de | 6683 | nest = nla_nest_start_noflag(req->msg, attr); |
fc6fae7d JK |
6684 | if (!nest) |
6685 | return -EMSGSIZE; | |
6686 | ||
6687 | err = nla_put_string(req->msg, DEVLINK_ATTR_INFO_VERSION_NAME, | |
6688 | version_name); | |
6689 | if (err) | |
6690 | goto nla_put_failure; | |
6691 | ||
6692 | err = nla_put_string(req->msg, DEVLINK_ATTR_INFO_VERSION_VALUE, | |
6693 | version_value); | |
6694 | if (err) | |
6695 | goto nla_put_failure; | |
6696 | ||
6697 | nla_nest_end(req->msg, nest); | |
6698 | ||
6699 | return 0; | |
6700 | ||
6701 | nla_put_failure: | |
6702 | nla_nest_cancel(req->msg, nest); | |
6703 | return err; | |
6704 | } | |
6705 | ||
6706 | int devlink_info_version_fixed_put(struct devlink_info_req *req, | |
6707 | const char *version_name, | |
6708 | const char *version_value) | |
6709 | { | |
6710 | return devlink_info_version_put(req, DEVLINK_ATTR_INFO_VERSION_FIXED, | |
bb670123 JP |
6711 | version_name, version_value, |
6712 | DEVLINK_INFO_VERSION_TYPE_NONE); | |
fc6fae7d JK |
6713 | } |
6714 | EXPORT_SYMBOL_GPL(devlink_info_version_fixed_put); | |
6715 | ||
6716 | int devlink_info_version_stored_put(struct devlink_info_req *req, | |
6717 | const char *version_name, | |
6718 | const char *version_value) | |
6719 | { | |
6720 | return devlink_info_version_put(req, DEVLINK_ATTR_INFO_VERSION_STORED, | |
bb670123 JP |
6721 | version_name, version_value, |
6722 | DEVLINK_INFO_VERSION_TYPE_NONE); | |
fc6fae7d JK |
6723 | } |
6724 | EXPORT_SYMBOL_GPL(devlink_info_version_stored_put); | |
6725 | ||
bb670123 JP |
6726 | int devlink_info_version_stored_put_ext(struct devlink_info_req *req, |
6727 | const char *version_name, | |
6728 | const char *version_value, | |
6729 | enum devlink_info_version_type version_type) | |
6730 | { | |
6731 | return devlink_info_version_put(req, DEVLINK_ATTR_INFO_VERSION_STORED, | |
6732 | version_name, version_value, | |
6733 | version_type); | |
6734 | } | |
6735 | EXPORT_SYMBOL_GPL(devlink_info_version_stored_put_ext); | |
6736 | ||
fc6fae7d JK |
6737 | int devlink_info_version_running_put(struct devlink_info_req *req, |
6738 | const char *version_name, | |
6739 | const char *version_value) | |
6740 | { | |
6741 | return devlink_info_version_put(req, DEVLINK_ATTR_INFO_VERSION_RUNNING, | |
bb670123 JP |
6742 | version_name, version_value, |
6743 | DEVLINK_INFO_VERSION_TYPE_NONE); | |
fc6fae7d JK |
6744 | } |
6745 | EXPORT_SYMBOL_GPL(devlink_info_version_running_put); | |
6746 | ||
bb670123 JP |
6747 | int devlink_info_version_running_put_ext(struct devlink_info_req *req, |
6748 | const char *version_name, | |
6749 | const char *version_value, | |
6750 | enum devlink_info_version_type version_type) | |
6751 | { | |
6752 | return devlink_info_version_put(req, DEVLINK_ATTR_INFO_VERSION_RUNNING, | |
6753 | version_name, version_value, | |
6754 | version_type); | |
6755 | } | |
6756 | EXPORT_SYMBOL_GPL(devlink_info_version_running_put_ext); | |
6757 | ||
f9cf2288 JK |
6758 | static int |
6759 | devlink_nl_info_fill(struct sk_buff *msg, struct devlink *devlink, | |
6760 | enum devlink_command cmd, u32 portid, | |
6761 | u32 seq, int flags, struct netlink_ext_ack *extack) | |
6762 | { | |
f94b6063 | 6763 | struct devlink_info_req req = {}; |
f9cf2288 JK |
6764 | void *hdr; |
6765 | int err; | |
6766 | ||
6767 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
6768 | if (!hdr) | |
6769 | return -EMSGSIZE; | |
6770 | ||
6771 | err = -EMSGSIZE; | |
6772 | if (devlink_nl_put_handle(msg, devlink)) | |
6773 | goto err_cancel_msg; | |
6774 | ||
6775 | req.msg = msg; | |
6776 | err = devlink->ops->info_get(devlink, &req, extack); | |
6777 | if (err) | |
6778 | goto err_cancel_msg; | |
6779 | ||
6780 | genlmsg_end(msg, hdr); | |
6781 | return 0; | |
6782 | ||
6783 | err_cancel_msg: | |
6784 | genlmsg_cancel(msg, hdr); | |
6785 | return err; | |
6786 | } | |
6787 | ||
6788 | static int devlink_nl_cmd_info_get_doit(struct sk_buff *skb, | |
6789 | struct genl_info *info) | |
6790 | { | |
6791 | struct devlink *devlink = info->user_ptr[0]; | |
6792 | struct sk_buff *msg; | |
6793 | int err; | |
6794 | ||
be6fe1d8 | 6795 | if (!devlink->ops->info_get) |
f9cf2288 JK |
6796 | return -EOPNOTSUPP; |
6797 | ||
6798 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
6799 | if (!msg) | |
6800 | return -ENOMEM; | |
6801 | ||
6802 | err = devlink_nl_info_fill(msg, devlink, DEVLINK_CMD_INFO_GET, | |
6803 | info->snd_portid, info->snd_seq, 0, | |
6804 | info->extack); | |
6805 | if (err) { | |
6806 | nlmsg_free(msg); | |
6807 | return err; | |
6808 | } | |
6809 | ||
6810 | return genlmsg_reply(msg, info); | |
6811 | } | |
6812 | ||
6813 | static int devlink_nl_cmd_info_get_dumpit(struct sk_buff *msg, | |
6814 | struct netlink_callback *cb) | |
6815 | { | |
6816 | struct devlink *devlink; | |
6817 | int start = cb->args[0]; | |
11a861d7 | 6818 | unsigned long index; |
f9cf2288 | 6819 | int idx = 0; |
c62c2cfb | 6820 | int err = 0; |
f9cf2288 | 6821 | |
294c4f57 | 6822 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
437ebfd9 LR |
6823 | if (idx < start || !devlink->ops->info_get) |
6824 | goto inc; | |
c493b09b | 6825 | |
7715023a | 6826 | devl_lock(devlink); |
f9cf2288 JK |
6827 | err = devlink_nl_info_fill(msg, devlink, DEVLINK_CMD_INFO_GET, |
6828 | NETLINK_CB(cb->skb).portid, | |
6829 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
6830 | cb->extack); | |
7715023a | 6831 | devl_unlock(devlink); |
82274d07 JK |
6832 | if (err == -EOPNOTSUPP) |
6833 | err = 0; | |
437ebfd9 LR |
6834 | else if (err) { |
6835 | devlink_put(devlink); | |
f9cf2288 | 6836 | break; |
437ebfd9 LR |
6837 | } |
6838 | inc: | |
f9cf2288 | 6839 | idx++; |
437ebfd9 | 6840 | devlink_put(devlink); |
f9cf2288 | 6841 | } |
f9cf2288 | 6842 | |
c62c2cfb JP |
6843 | if (err != -EMSGSIZE) |
6844 | return err; | |
6845 | ||
f9cf2288 JK |
6846 | cb->args[0] = idx; |
6847 | return msg->len; | |
6848 | } | |
6849 | ||
1db64e87 EBE |
6850 | struct devlink_fmsg_item { |
6851 | struct list_head list; | |
6852 | int attrtype; | |
6853 | u8 nla_type; | |
6854 | u16 len; | |
d2afb41a | 6855 | int value[]; |
1db64e87 EBE |
6856 | }; |
6857 | ||
6858 | struct devlink_fmsg { | |
6859 | struct list_head item_list; | |
573ed90a AL |
6860 | bool putting_binary; /* This flag forces enclosing of binary data |
6861 | * in an array brackets. It forces using | |
6862 | * of designated API: | |
6863 | * devlink_fmsg_binary_pair_nest_start() | |
6864 | * devlink_fmsg_binary_pair_nest_end() | |
6865 | */ | |
1db64e87 EBE |
6866 | }; |
6867 | ||
6868 | static struct devlink_fmsg *devlink_fmsg_alloc(void) | |
6869 | { | |
6870 | struct devlink_fmsg *fmsg; | |
6871 | ||
6872 | fmsg = kzalloc(sizeof(*fmsg), GFP_KERNEL); | |
6873 | if (!fmsg) | |
6874 | return NULL; | |
6875 | ||
6876 | INIT_LIST_HEAD(&fmsg->item_list); | |
6877 | ||
6878 | return fmsg; | |
6879 | } | |
6880 | ||
6881 | static void devlink_fmsg_free(struct devlink_fmsg *fmsg) | |
6882 | { | |
6883 | struct devlink_fmsg_item *item, *tmp; | |
6884 | ||
6885 | list_for_each_entry_safe(item, tmp, &fmsg->item_list, list) { | |
6886 | list_del(&item->list); | |
6887 | kfree(item); | |
6888 | } | |
6889 | kfree(fmsg); | |
6890 | } | |
6891 | ||
6892 | static int devlink_fmsg_nest_common(struct devlink_fmsg *fmsg, | |
6893 | int attrtype) | |
6894 | { | |
6895 | struct devlink_fmsg_item *item; | |
6896 | ||
6897 | item = kzalloc(sizeof(*item), GFP_KERNEL); | |
6898 | if (!item) | |
6899 | return -ENOMEM; | |
6900 | ||
6901 | item->attrtype = attrtype; | |
6902 | list_add_tail(&item->list, &fmsg->item_list); | |
6903 | ||
6904 | return 0; | |
6905 | } | |
6906 | ||
6907 | int devlink_fmsg_obj_nest_start(struct devlink_fmsg *fmsg) | |
6908 | { | |
573ed90a AL |
6909 | if (fmsg->putting_binary) |
6910 | return -EINVAL; | |
6911 | ||
1db64e87 EBE |
6912 | return devlink_fmsg_nest_common(fmsg, DEVLINK_ATTR_FMSG_OBJ_NEST_START); |
6913 | } | |
6914 | EXPORT_SYMBOL_GPL(devlink_fmsg_obj_nest_start); | |
6915 | ||
6916 | static int devlink_fmsg_nest_end(struct devlink_fmsg *fmsg) | |
6917 | { | |
573ed90a AL |
6918 | if (fmsg->putting_binary) |
6919 | return -EINVAL; | |
6920 | ||
1db64e87 EBE |
6921 | return devlink_fmsg_nest_common(fmsg, DEVLINK_ATTR_FMSG_NEST_END); |
6922 | } | |
6923 | ||
6924 | int devlink_fmsg_obj_nest_end(struct devlink_fmsg *fmsg) | |
6925 | { | |
573ed90a AL |
6926 | if (fmsg->putting_binary) |
6927 | return -EINVAL; | |
6928 | ||
1db64e87 EBE |
6929 | return devlink_fmsg_nest_end(fmsg); |
6930 | } | |
6931 | EXPORT_SYMBOL_GPL(devlink_fmsg_obj_nest_end); | |
6932 | ||
6933 | #define DEVLINK_FMSG_MAX_SIZE (GENLMSG_DEFAULT_SIZE - GENL_HDRLEN - NLA_HDRLEN) | |
6934 | ||
6935 | static int devlink_fmsg_put_name(struct devlink_fmsg *fmsg, const char *name) | |
6936 | { | |
6937 | struct devlink_fmsg_item *item; | |
6938 | ||
573ed90a AL |
6939 | if (fmsg->putting_binary) |
6940 | return -EINVAL; | |
6941 | ||
1db64e87 EBE |
6942 | if (strlen(name) + 1 > DEVLINK_FMSG_MAX_SIZE) |
6943 | return -EMSGSIZE; | |
6944 | ||
6945 | item = kzalloc(sizeof(*item) + strlen(name) + 1, GFP_KERNEL); | |
6946 | if (!item) | |
6947 | return -ENOMEM; | |
6948 | ||
6949 | item->nla_type = NLA_NUL_STRING; | |
6950 | item->len = strlen(name) + 1; | |
6951 | item->attrtype = DEVLINK_ATTR_FMSG_OBJ_NAME; | |
6952 | memcpy(&item->value, name, item->len); | |
6953 | list_add_tail(&item->list, &fmsg->item_list); | |
6954 | ||
6955 | return 0; | |
6956 | } | |
6957 | ||
6958 | int devlink_fmsg_pair_nest_start(struct devlink_fmsg *fmsg, const char *name) | |
6959 | { | |
6960 | int err; | |
6961 | ||
573ed90a AL |
6962 | if (fmsg->putting_binary) |
6963 | return -EINVAL; | |
6964 | ||
1db64e87 EBE |
6965 | err = devlink_fmsg_nest_common(fmsg, DEVLINK_ATTR_FMSG_PAIR_NEST_START); |
6966 | if (err) | |
6967 | return err; | |
6968 | ||
6969 | err = devlink_fmsg_put_name(fmsg, name); | |
6970 | if (err) | |
6971 | return err; | |
6972 | ||
6973 | return 0; | |
6974 | } | |
6975 | EXPORT_SYMBOL_GPL(devlink_fmsg_pair_nest_start); | |
6976 | ||
6977 | int devlink_fmsg_pair_nest_end(struct devlink_fmsg *fmsg) | |
6978 | { | |
573ed90a AL |
6979 | if (fmsg->putting_binary) |
6980 | return -EINVAL; | |
6981 | ||
1db64e87 EBE |
6982 | return devlink_fmsg_nest_end(fmsg); |
6983 | } | |
6984 | EXPORT_SYMBOL_GPL(devlink_fmsg_pair_nest_end); | |
6985 | ||
6986 | int devlink_fmsg_arr_pair_nest_start(struct devlink_fmsg *fmsg, | |
6987 | const char *name) | |
6988 | { | |
6989 | int err; | |
6990 | ||
573ed90a AL |
6991 | if (fmsg->putting_binary) |
6992 | return -EINVAL; | |
6993 | ||
1db64e87 EBE |
6994 | err = devlink_fmsg_pair_nest_start(fmsg, name); |
6995 | if (err) | |
6996 | return err; | |
6997 | ||
6998 | err = devlink_fmsg_nest_common(fmsg, DEVLINK_ATTR_FMSG_ARR_NEST_START); | |
6999 | if (err) | |
7000 | return err; | |
7001 | ||
7002 | return 0; | |
7003 | } | |
7004 | EXPORT_SYMBOL_GPL(devlink_fmsg_arr_pair_nest_start); | |
7005 | ||
7006 | int devlink_fmsg_arr_pair_nest_end(struct devlink_fmsg *fmsg) | |
7007 | { | |
7008 | int err; | |
7009 | ||
573ed90a AL |
7010 | if (fmsg->putting_binary) |
7011 | return -EINVAL; | |
7012 | ||
1db64e87 EBE |
7013 | err = devlink_fmsg_nest_end(fmsg); |
7014 | if (err) | |
7015 | return err; | |
7016 | ||
7017 | err = devlink_fmsg_nest_end(fmsg); | |
7018 | if (err) | |
7019 | return err; | |
7020 | ||
7021 | return 0; | |
7022 | } | |
7023 | EXPORT_SYMBOL_GPL(devlink_fmsg_arr_pair_nest_end); | |
7024 | ||
573ed90a AL |
7025 | int devlink_fmsg_binary_pair_nest_start(struct devlink_fmsg *fmsg, |
7026 | const char *name) | |
7027 | { | |
7028 | int err; | |
7029 | ||
7030 | err = devlink_fmsg_arr_pair_nest_start(fmsg, name); | |
7031 | if (err) | |
7032 | return err; | |
7033 | ||
7034 | fmsg->putting_binary = true; | |
7035 | return err; | |
7036 | } | |
7037 | EXPORT_SYMBOL_GPL(devlink_fmsg_binary_pair_nest_start); | |
7038 | ||
7039 | int devlink_fmsg_binary_pair_nest_end(struct devlink_fmsg *fmsg) | |
7040 | { | |
7041 | if (!fmsg->putting_binary) | |
7042 | return -EINVAL; | |
7043 | ||
7044 | fmsg->putting_binary = false; | |
7045 | return devlink_fmsg_arr_pair_nest_end(fmsg); | |
7046 | } | |
7047 | EXPORT_SYMBOL_GPL(devlink_fmsg_binary_pair_nest_end); | |
7048 | ||
1db64e87 EBE |
7049 | static int devlink_fmsg_put_value(struct devlink_fmsg *fmsg, |
7050 | const void *value, u16 value_len, | |
7051 | u8 value_nla_type) | |
7052 | { | |
7053 | struct devlink_fmsg_item *item; | |
7054 | ||
7055 | if (value_len > DEVLINK_FMSG_MAX_SIZE) | |
7056 | return -EMSGSIZE; | |
7057 | ||
7058 | item = kzalloc(sizeof(*item) + value_len, GFP_KERNEL); | |
7059 | if (!item) | |
7060 | return -ENOMEM; | |
7061 | ||
7062 | item->nla_type = value_nla_type; | |
7063 | item->len = value_len; | |
7064 | item->attrtype = DEVLINK_ATTR_FMSG_OBJ_VALUE_DATA; | |
7065 | memcpy(&item->value, value, item->len); | |
7066 | list_add_tail(&item->list, &fmsg->item_list); | |
7067 | ||
7068 | return 0; | |
7069 | } | |
7070 | ||
6db9350a | 7071 | static int devlink_fmsg_bool_put(struct devlink_fmsg *fmsg, bool value) |
1db64e87 | 7072 | { |
573ed90a AL |
7073 | if (fmsg->putting_binary) |
7074 | return -EINVAL; | |
7075 | ||
1db64e87 EBE |
7076 | return devlink_fmsg_put_value(fmsg, &value, sizeof(value), NLA_FLAG); |
7077 | } | |
1db64e87 | 7078 | |
6db9350a | 7079 | static int devlink_fmsg_u8_put(struct devlink_fmsg *fmsg, u8 value) |
1db64e87 | 7080 | { |
573ed90a AL |
7081 | if (fmsg->putting_binary) |
7082 | return -EINVAL; | |
7083 | ||
1db64e87 EBE |
7084 | return devlink_fmsg_put_value(fmsg, &value, sizeof(value), NLA_U8); |
7085 | } | |
1db64e87 EBE |
7086 | |
7087 | int devlink_fmsg_u32_put(struct devlink_fmsg *fmsg, u32 value) | |
7088 | { | |
573ed90a AL |
7089 | if (fmsg->putting_binary) |
7090 | return -EINVAL; | |
7091 | ||
1db64e87 EBE |
7092 | return devlink_fmsg_put_value(fmsg, &value, sizeof(value), NLA_U32); |
7093 | } | |
7094 | EXPORT_SYMBOL_GPL(devlink_fmsg_u32_put); | |
7095 | ||
6db9350a | 7096 | static int devlink_fmsg_u64_put(struct devlink_fmsg *fmsg, u64 value) |
1db64e87 | 7097 | { |
573ed90a AL |
7098 | if (fmsg->putting_binary) |
7099 | return -EINVAL; | |
7100 | ||
1db64e87 EBE |
7101 | return devlink_fmsg_put_value(fmsg, &value, sizeof(value), NLA_U64); |
7102 | } | |
1db64e87 EBE |
7103 | |
7104 | int devlink_fmsg_string_put(struct devlink_fmsg *fmsg, const char *value) | |
7105 | { | |
573ed90a AL |
7106 | if (fmsg->putting_binary) |
7107 | return -EINVAL; | |
7108 | ||
1db64e87 EBE |
7109 | return devlink_fmsg_put_value(fmsg, value, strlen(value) + 1, |
7110 | NLA_NUL_STRING); | |
7111 | } | |
7112 | EXPORT_SYMBOL_GPL(devlink_fmsg_string_put); | |
7113 | ||
573ed90a AL |
7114 | int devlink_fmsg_binary_put(struct devlink_fmsg *fmsg, const void *value, |
7115 | u16 value_len) | |
1db64e87 | 7116 | { |
573ed90a AL |
7117 | if (!fmsg->putting_binary) |
7118 | return -EINVAL; | |
7119 | ||
1db64e87 EBE |
7120 | return devlink_fmsg_put_value(fmsg, value, value_len, NLA_BINARY); |
7121 | } | |
573ed90a | 7122 | EXPORT_SYMBOL_GPL(devlink_fmsg_binary_put); |
1db64e87 EBE |
7123 | |
7124 | int devlink_fmsg_bool_pair_put(struct devlink_fmsg *fmsg, const char *name, | |
7125 | bool value) | |
7126 | { | |
7127 | int err; | |
7128 | ||
7129 | err = devlink_fmsg_pair_nest_start(fmsg, name); | |
7130 | if (err) | |
7131 | return err; | |
7132 | ||
7133 | err = devlink_fmsg_bool_put(fmsg, value); | |
7134 | if (err) | |
7135 | return err; | |
7136 | ||
7137 | err = devlink_fmsg_pair_nest_end(fmsg); | |
7138 | if (err) | |
7139 | return err; | |
7140 | ||
7141 | return 0; | |
7142 | } | |
7143 | EXPORT_SYMBOL_GPL(devlink_fmsg_bool_pair_put); | |
7144 | ||
7145 | int devlink_fmsg_u8_pair_put(struct devlink_fmsg *fmsg, const char *name, | |
7146 | u8 value) | |
7147 | { | |
7148 | int err; | |
7149 | ||
7150 | err = devlink_fmsg_pair_nest_start(fmsg, name); | |
7151 | if (err) | |
7152 | return err; | |
7153 | ||
7154 | err = devlink_fmsg_u8_put(fmsg, value); | |
7155 | if (err) | |
7156 | return err; | |
7157 | ||
7158 | err = devlink_fmsg_pair_nest_end(fmsg); | |
7159 | if (err) | |
7160 | return err; | |
7161 | ||
7162 | return 0; | |
7163 | } | |
7164 | EXPORT_SYMBOL_GPL(devlink_fmsg_u8_pair_put); | |
7165 | ||
7166 | int devlink_fmsg_u32_pair_put(struct devlink_fmsg *fmsg, const char *name, | |
7167 | u32 value) | |
7168 | { | |
7169 | int err; | |
7170 | ||
7171 | err = devlink_fmsg_pair_nest_start(fmsg, name); | |
7172 | if (err) | |
7173 | return err; | |
7174 | ||
7175 | err = devlink_fmsg_u32_put(fmsg, value); | |
7176 | if (err) | |
7177 | return err; | |
7178 | ||
7179 | err = devlink_fmsg_pair_nest_end(fmsg); | |
7180 | if (err) | |
7181 | return err; | |
7182 | ||
7183 | return 0; | |
7184 | } | |
7185 | EXPORT_SYMBOL_GPL(devlink_fmsg_u32_pair_put); | |
7186 | ||
7187 | int devlink_fmsg_u64_pair_put(struct devlink_fmsg *fmsg, const char *name, | |
7188 | u64 value) | |
7189 | { | |
7190 | int err; | |
7191 | ||
7192 | err = devlink_fmsg_pair_nest_start(fmsg, name); | |
7193 | if (err) | |
7194 | return err; | |
7195 | ||
7196 | err = devlink_fmsg_u64_put(fmsg, value); | |
7197 | if (err) | |
7198 | return err; | |
7199 | ||
7200 | err = devlink_fmsg_pair_nest_end(fmsg); | |
7201 | if (err) | |
7202 | return err; | |
7203 | ||
7204 | return 0; | |
7205 | } | |
7206 | EXPORT_SYMBOL_GPL(devlink_fmsg_u64_pair_put); | |
7207 | ||
7208 | int devlink_fmsg_string_pair_put(struct devlink_fmsg *fmsg, const char *name, | |
7209 | const char *value) | |
7210 | { | |
7211 | int err; | |
7212 | ||
7213 | err = devlink_fmsg_pair_nest_start(fmsg, name); | |
7214 | if (err) | |
7215 | return err; | |
7216 | ||
7217 | err = devlink_fmsg_string_put(fmsg, value); | |
7218 | if (err) | |
7219 | return err; | |
7220 | ||
7221 | err = devlink_fmsg_pair_nest_end(fmsg); | |
7222 | if (err) | |
7223 | return err; | |
7224 | ||
7225 | return 0; | |
7226 | } | |
7227 | EXPORT_SYMBOL_GPL(devlink_fmsg_string_pair_put); | |
7228 | ||
7229 | int devlink_fmsg_binary_pair_put(struct devlink_fmsg *fmsg, const char *name, | |
e2cde864 | 7230 | const void *value, u32 value_len) |
1db64e87 | 7231 | { |
e2cde864 | 7232 | u32 data_size; |
573ed90a | 7233 | int end_err; |
e2cde864 | 7234 | u32 offset; |
1db64e87 EBE |
7235 | int err; |
7236 | ||
573ed90a | 7237 | err = devlink_fmsg_binary_pair_nest_start(fmsg, name); |
1db64e87 EBE |
7238 | if (err) |
7239 | return err; | |
7240 | ||
e2cde864 AL |
7241 | for (offset = 0; offset < value_len; offset += data_size) { |
7242 | data_size = value_len - offset; | |
7243 | if (data_size > DEVLINK_FMSG_MAX_SIZE) | |
7244 | data_size = DEVLINK_FMSG_MAX_SIZE; | |
7245 | err = devlink_fmsg_binary_put(fmsg, value + offset, data_size); | |
7246 | if (err) | |
573ed90a AL |
7247 | break; |
7248 | /* Exit from loop with a break (instead of | |
7249 | * return) to make sure putting_binary is turned off in | |
7250 | * devlink_fmsg_binary_pair_nest_end | |
7251 | */ | |
e2cde864 | 7252 | } |
1db64e87 | 7253 | |
573ed90a AL |
7254 | end_err = devlink_fmsg_binary_pair_nest_end(fmsg); |
7255 | if (end_err) | |
7256 | err = end_err; | |
1db64e87 | 7257 | |
573ed90a | 7258 | return err; |
1db64e87 EBE |
7259 | } |
7260 | EXPORT_SYMBOL_GPL(devlink_fmsg_binary_pair_put); | |
7261 | ||
7262 | static int | |
7263 | devlink_fmsg_item_fill_type(struct devlink_fmsg_item *msg, struct sk_buff *skb) | |
7264 | { | |
7265 | switch (msg->nla_type) { | |
7266 | case NLA_FLAG: | |
7267 | case NLA_U8: | |
7268 | case NLA_U32: | |
7269 | case NLA_U64: | |
7270 | case NLA_NUL_STRING: | |
7271 | case NLA_BINARY: | |
7272 | return nla_put_u8(skb, DEVLINK_ATTR_FMSG_OBJ_VALUE_TYPE, | |
7273 | msg->nla_type); | |
7274 | default: | |
7275 | return -EINVAL; | |
7276 | } | |
7277 | } | |
7278 | ||
7279 | static int | |
7280 | devlink_fmsg_item_fill_data(struct devlink_fmsg_item *msg, struct sk_buff *skb) | |
7281 | { | |
7282 | int attrtype = DEVLINK_ATTR_FMSG_OBJ_VALUE_DATA; | |
7283 | u8 tmp; | |
7284 | ||
7285 | switch (msg->nla_type) { | |
7286 | case NLA_FLAG: | |
7287 | /* Always provide flag data, regardless of its value */ | |
7288 | tmp = *(bool *) msg->value; | |
7289 | ||
7290 | return nla_put_u8(skb, attrtype, tmp); | |
7291 | case NLA_U8: | |
7292 | return nla_put_u8(skb, attrtype, *(u8 *) msg->value); | |
7293 | case NLA_U32: | |
7294 | return nla_put_u32(skb, attrtype, *(u32 *) msg->value); | |
7295 | case NLA_U64: | |
7296 | return nla_put_u64_64bit(skb, attrtype, *(u64 *) msg->value, | |
7297 | DEVLINK_ATTR_PAD); | |
7298 | case NLA_NUL_STRING: | |
7299 | return nla_put_string(skb, attrtype, (char *) &msg->value); | |
7300 | case NLA_BINARY: | |
7301 | return nla_put(skb, attrtype, msg->len, (void *) &msg->value); | |
7302 | default: | |
7303 | return -EINVAL; | |
7304 | } | |
7305 | } | |
7306 | ||
7307 | static int | |
7308 | devlink_fmsg_prepare_skb(struct devlink_fmsg *fmsg, struct sk_buff *skb, | |
7309 | int *start) | |
7310 | { | |
7311 | struct devlink_fmsg_item *item; | |
7312 | struct nlattr *fmsg_nlattr; | |
7313 | int i = 0; | |
7314 | int err; | |
7315 | ||
ae0be8de | 7316 | fmsg_nlattr = nla_nest_start_noflag(skb, DEVLINK_ATTR_FMSG); |
1db64e87 EBE |
7317 | if (!fmsg_nlattr) |
7318 | return -EMSGSIZE; | |
7319 | ||
7320 | list_for_each_entry(item, &fmsg->item_list, list) { | |
7321 | if (i < *start) { | |
7322 | i++; | |
7323 | continue; | |
7324 | } | |
7325 | ||
7326 | switch (item->attrtype) { | |
7327 | case DEVLINK_ATTR_FMSG_OBJ_NEST_START: | |
7328 | case DEVLINK_ATTR_FMSG_PAIR_NEST_START: | |
7329 | case DEVLINK_ATTR_FMSG_ARR_NEST_START: | |
7330 | case DEVLINK_ATTR_FMSG_NEST_END: | |
7331 | err = nla_put_flag(skb, item->attrtype); | |
7332 | break; | |
7333 | case DEVLINK_ATTR_FMSG_OBJ_VALUE_DATA: | |
7334 | err = devlink_fmsg_item_fill_type(item, skb); | |
7335 | if (err) | |
7336 | break; | |
7337 | err = devlink_fmsg_item_fill_data(item, skb); | |
7338 | break; | |
7339 | case DEVLINK_ATTR_FMSG_OBJ_NAME: | |
7340 | err = nla_put_string(skb, item->attrtype, | |
7341 | (char *) &item->value); | |
7342 | break; | |
7343 | default: | |
7344 | err = -EINVAL; | |
7345 | break; | |
7346 | } | |
7347 | if (!err) | |
7348 | *start = ++i; | |
7349 | else | |
7350 | break; | |
7351 | } | |
7352 | ||
7353 | nla_nest_end(skb, fmsg_nlattr); | |
7354 | return err; | |
7355 | } | |
7356 | ||
7357 | static int devlink_fmsg_snd(struct devlink_fmsg *fmsg, | |
7358 | struct genl_info *info, | |
7359 | enum devlink_command cmd, int flags) | |
7360 | { | |
7361 | struct nlmsghdr *nlh; | |
7362 | struct sk_buff *skb; | |
7363 | bool last = false; | |
7364 | int index = 0; | |
7365 | void *hdr; | |
7366 | int err; | |
7367 | ||
7368 | while (!last) { | |
7369 | int tmp_index = index; | |
7370 | ||
7371 | skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
7372 | if (!skb) | |
7373 | return -ENOMEM; | |
7374 | ||
7375 | hdr = genlmsg_put(skb, info->snd_portid, info->snd_seq, | |
7376 | &devlink_nl_family, flags | NLM_F_MULTI, cmd); | |
7377 | if (!hdr) { | |
7378 | err = -EMSGSIZE; | |
7379 | goto nla_put_failure; | |
7380 | } | |
7381 | ||
7382 | err = devlink_fmsg_prepare_skb(fmsg, skb, &index); | |
7383 | if (!err) | |
7384 | last = true; | |
7385 | else if (err != -EMSGSIZE || tmp_index == index) | |
7386 | goto nla_put_failure; | |
7387 | ||
7388 | genlmsg_end(skb, hdr); | |
7389 | err = genlmsg_reply(skb, info); | |
7390 | if (err) | |
7391 | return err; | |
7392 | } | |
7393 | ||
7394 | skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
7395 | if (!skb) | |
7396 | return -ENOMEM; | |
7397 | nlh = nlmsg_put(skb, info->snd_portid, info->snd_seq, | |
7398 | NLMSG_DONE, 0, flags | NLM_F_MULTI); | |
7399 | if (!nlh) { | |
7400 | err = -EMSGSIZE; | |
7401 | goto nla_put_failure; | |
7402 | } | |
1db64e87 | 7403 | |
fde55ea7 | 7404 | return genlmsg_reply(skb, info); |
1db64e87 EBE |
7405 | |
7406 | nla_put_failure: | |
7407 | nlmsg_free(skb); | |
7408 | return err; | |
7409 | } | |
7410 | ||
e44ef4e4 AL |
7411 | static int devlink_fmsg_dumpit(struct devlink_fmsg *fmsg, struct sk_buff *skb, |
7412 | struct netlink_callback *cb, | |
7413 | enum devlink_command cmd) | |
7414 | { | |
7415 | int index = cb->args[0]; | |
7416 | int tmp_index = index; | |
7417 | void *hdr; | |
7418 | int err; | |
7419 | ||
7420 | hdr = genlmsg_put(skb, NETLINK_CB(cb->skb).portid, cb->nlh->nlmsg_seq, | |
7421 | &devlink_nl_family, NLM_F_ACK | NLM_F_MULTI, cmd); | |
7422 | if (!hdr) { | |
7423 | err = -EMSGSIZE; | |
7424 | goto nla_put_failure; | |
7425 | } | |
7426 | ||
7427 | err = devlink_fmsg_prepare_skb(fmsg, skb, &index); | |
7428 | if ((err && err != -EMSGSIZE) || tmp_index == index) | |
7429 | goto nla_put_failure; | |
7430 | ||
7431 | cb->args[0] = index; | |
7432 | genlmsg_end(skb, hdr); | |
7433 | return skb->len; | |
7434 | ||
7435 | nla_put_failure: | |
7436 | genlmsg_cancel(skb, hdr); | |
7437 | return err; | |
7438 | } | |
7439 | ||
a0bdcc59 EBE |
7440 | struct devlink_health_reporter { |
7441 | struct list_head list; | |
7442 | void *priv; | |
7443 | const struct devlink_health_reporter_ops *ops; | |
7444 | struct devlink *devlink; | |
f4f54166 | 7445 | struct devlink_port *devlink_port; |
c8e1da0b EBE |
7446 | struct devlink_fmsg *dump_fmsg; |
7447 | struct mutex dump_lock; /* lock parallel read/write from dump buffers */ | |
a0bdcc59 EBE |
7448 | u64 graceful_period; |
7449 | bool auto_recover; | |
48bb52c8 | 7450 | bool auto_dump; |
a0bdcc59 | 7451 | u8 health_state; |
c8e1da0b | 7452 | u64 dump_ts; |
d279505b | 7453 | u64 dump_real_ts; |
c8e1da0b EBE |
7454 | u64 error_count; |
7455 | u64 recovery_count; | |
7456 | u64 last_recovery_ts; | |
b587bdaf | 7457 | refcount_t refcount; |
c8e1da0b EBE |
7458 | }; |
7459 | ||
a0bdcc59 EBE |
7460 | void * |
7461 | devlink_health_reporter_priv(struct devlink_health_reporter *reporter) | |
7462 | { | |
7463 | return reporter->priv; | |
7464 | } | |
7465 | EXPORT_SYMBOL_GPL(devlink_health_reporter_priv); | |
7466 | ||
7467 | static struct devlink_health_reporter * | |
bd821005 VT |
7468 | __devlink_health_reporter_find_by_name(struct list_head *reporter_list, |
7469 | struct mutex *list_lock, | |
7470 | const char *reporter_name) | |
a0bdcc59 EBE |
7471 | { |
7472 | struct devlink_health_reporter *reporter; | |
7473 | ||
bd821005 VT |
7474 | lockdep_assert_held(list_lock); |
7475 | list_for_each_entry(reporter, reporter_list, list) | |
a0bdcc59 EBE |
7476 | if (!strcmp(reporter->ops->name, reporter_name)) |
7477 | return reporter; | |
7478 | return NULL; | |
7479 | } | |
7480 | ||
bd821005 VT |
7481 | static struct devlink_health_reporter * |
7482 | devlink_health_reporter_find_by_name(struct devlink *devlink, | |
7483 | const char *reporter_name) | |
7484 | { | |
7485 | return __devlink_health_reporter_find_by_name(&devlink->reporter_list, | |
7486 | &devlink->reporters_lock, | |
7487 | reporter_name); | |
7488 | } | |
7489 | ||
f4f54166 VT |
7490 | static struct devlink_health_reporter * |
7491 | devlink_port_health_reporter_find_by_name(struct devlink_port *devlink_port, | |
7492 | const char *reporter_name) | |
7493 | { | |
7494 | return __devlink_health_reporter_find_by_name(&devlink_port->reporter_list, | |
7495 | &devlink_port->reporters_lock, | |
7496 | reporter_name); | |
7497 | } | |
7498 | ||
c57544b3 VT |
7499 | static struct devlink_health_reporter * |
7500 | __devlink_health_reporter_create(struct devlink *devlink, | |
7501 | const struct devlink_health_reporter_ops *ops, | |
7502 | u64 graceful_period, void *priv) | |
7503 | { | |
7504 | struct devlink_health_reporter *reporter; | |
7505 | ||
7506 | if (WARN_ON(graceful_period && !ops->recover)) | |
7507 | return ERR_PTR(-EINVAL); | |
7508 | ||
7509 | reporter = kzalloc(sizeof(*reporter), GFP_KERNEL); | |
7510 | if (!reporter) | |
7511 | return ERR_PTR(-ENOMEM); | |
7512 | ||
7513 | reporter->priv = priv; | |
7514 | reporter->ops = ops; | |
7515 | reporter->devlink = devlink; | |
7516 | reporter->graceful_period = graceful_period; | |
7517 | reporter->auto_recover = !!ops->recover; | |
7518 | reporter->auto_dump = !!ops->dump; | |
7519 | mutex_init(&reporter->dump_lock); | |
7520 | refcount_set(&reporter->refcount, 1); | |
7521 | return reporter; | |
7522 | } | |
7523 | ||
15c724b9 VT |
7524 | /** |
7525 | * devlink_port_health_reporter_create - create devlink health reporter for | |
7526 | * specified port instance | |
7527 | * | |
7528 | * @port: devlink_port which should contain the new reporter | |
7529 | * @ops: ops | |
7530 | * @graceful_period: to avoid recovery loops, in msecs | |
7531 | * @priv: priv | |
7532 | */ | |
7533 | struct devlink_health_reporter * | |
7534 | devlink_port_health_reporter_create(struct devlink_port *port, | |
7535 | const struct devlink_health_reporter_ops *ops, | |
7536 | u64 graceful_period, void *priv) | |
7537 | { | |
7538 | struct devlink_health_reporter *reporter; | |
7539 | ||
7540 | mutex_lock(&port->reporters_lock); | |
7541 | if (__devlink_health_reporter_find_by_name(&port->reporter_list, | |
7542 | &port->reporters_lock, ops->name)) { | |
7543 | reporter = ERR_PTR(-EEXIST); | |
7544 | goto unlock; | |
7545 | } | |
7546 | ||
7547 | reporter = __devlink_health_reporter_create(port->devlink, ops, | |
7548 | graceful_period, priv); | |
7549 | if (IS_ERR(reporter)) | |
7550 | goto unlock; | |
7551 | ||
7552 | reporter->devlink_port = port; | |
7553 | list_add_tail(&reporter->list, &port->reporter_list); | |
7554 | unlock: | |
7555 | mutex_unlock(&port->reporters_lock); | |
7556 | return reporter; | |
7557 | } | |
7558 | EXPORT_SYMBOL_GPL(devlink_port_health_reporter_create); | |
7559 | ||
a0bdcc59 EBE |
7560 | /** |
7561 | * devlink_health_reporter_create - create devlink health reporter | |
7562 | * | |
7563 | * @devlink: devlink | |
7564 | * @ops: ops | |
7565 | * @graceful_period: to avoid recovery loops, in msecs | |
a0bdcc59 EBE |
7566 | * @priv: priv |
7567 | */ | |
7568 | struct devlink_health_reporter * | |
7569 | devlink_health_reporter_create(struct devlink *devlink, | |
7570 | const struct devlink_health_reporter_ops *ops, | |
ba7d16c7 | 7571 | u64 graceful_period, void *priv) |
a0bdcc59 EBE |
7572 | { |
7573 | struct devlink_health_reporter *reporter; | |
7574 | ||
b587bdaf | 7575 | mutex_lock(&devlink->reporters_lock); |
a0bdcc59 EBE |
7576 | if (devlink_health_reporter_find_by_name(devlink, ops->name)) { |
7577 | reporter = ERR_PTR(-EEXIST); | |
7578 | goto unlock; | |
7579 | } | |
7580 | ||
c57544b3 VT |
7581 | reporter = __devlink_health_reporter_create(devlink, ops, |
7582 | graceful_period, priv); | |
7583 | if (IS_ERR(reporter)) | |
a0bdcc59 | 7584 | goto unlock; |
a0bdcc59 | 7585 | |
a0bdcc59 EBE |
7586 | list_add_tail(&reporter->list, &devlink->reporter_list); |
7587 | unlock: | |
b587bdaf | 7588 | mutex_unlock(&devlink->reporters_lock); |
a0bdcc59 EBE |
7589 | return reporter; |
7590 | } | |
7591 | EXPORT_SYMBOL_GPL(devlink_health_reporter_create); | |
7592 | ||
3c5584bf VT |
7593 | static void |
7594 | devlink_health_reporter_free(struct devlink_health_reporter *reporter) | |
7595 | { | |
7596 | mutex_destroy(&reporter->dump_lock); | |
7597 | if (reporter->dump_fmsg) | |
7598 | devlink_fmsg_free(reporter->dump_fmsg); | |
7599 | kfree(reporter); | |
7600 | } | |
7601 | ||
7602 | static void | |
7603 | devlink_health_reporter_put(struct devlink_health_reporter *reporter) | |
7604 | { | |
7605 | if (refcount_dec_and_test(&reporter->refcount)) | |
7606 | devlink_health_reporter_free(reporter); | |
7607 | } | |
7608 | ||
7609 | static void | |
7610 | __devlink_health_reporter_destroy(struct devlink_health_reporter *reporter) | |
7611 | { | |
7612 | list_del(&reporter->list); | |
7613 | devlink_health_reporter_put(reporter); | |
7614 | } | |
7615 | ||
a0bdcc59 EBE |
7616 | /** |
7617 | * devlink_health_reporter_destroy - destroy devlink health reporter | |
7618 | * | |
7619 | * @reporter: devlink health reporter to destroy | |
7620 | */ | |
7621 | void | |
7622 | devlink_health_reporter_destroy(struct devlink_health_reporter *reporter) | |
7623 | { | |
5d037b4d IS |
7624 | struct mutex *lock = &reporter->devlink->reporters_lock; |
7625 | ||
7626 | mutex_lock(lock); | |
3c5584bf | 7627 | __devlink_health_reporter_destroy(reporter); |
5d037b4d | 7628 | mutex_unlock(lock); |
a0bdcc59 EBE |
7629 | } |
7630 | EXPORT_SYMBOL_GPL(devlink_health_reporter_destroy); | |
7631 | ||
15c724b9 VT |
7632 | /** |
7633 | * devlink_port_health_reporter_destroy - destroy devlink port health reporter | |
7634 | * | |
7635 | * @reporter: devlink health reporter to destroy | |
7636 | */ | |
7637 | void | |
7638 | devlink_port_health_reporter_destroy(struct devlink_health_reporter *reporter) | |
7639 | { | |
5d037b4d IS |
7640 | struct mutex *lock = &reporter->devlink_port->reporters_lock; |
7641 | ||
7642 | mutex_lock(lock); | |
15c724b9 | 7643 | __devlink_health_reporter_destroy(reporter); |
5d037b4d | 7644 | mutex_unlock(lock); |
15c724b9 VT |
7645 | } |
7646 | EXPORT_SYMBOL_GPL(devlink_port_health_reporter_destroy); | |
7647 | ||
6ec8b6cd MS |
7648 | static int |
7649 | devlink_nl_health_reporter_fill(struct sk_buff *msg, | |
6ec8b6cd MS |
7650 | struct devlink_health_reporter *reporter, |
7651 | enum devlink_command cmd, u32 portid, | |
7652 | u32 seq, int flags) | |
7653 | { | |
7ca973dc | 7654 | struct devlink *devlink = reporter->devlink; |
6ec8b6cd MS |
7655 | struct nlattr *reporter_attr; |
7656 | void *hdr; | |
7657 | ||
7658 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
7659 | if (!hdr) | |
7660 | return -EMSGSIZE; | |
7661 | ||
7662 | if (devlink_nl_put_handle(msg, devlink)) | |
7663 | goto genlmsg_cancel; | |
7664 | ||
f4f54166 VT |
7665 | if (reporter->devlink_port) { |
7666 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, reporter->devlink_port->index)) | |
7667 | goto genlmsg_cancel; | |
7668 | } | |
6ec8b6cd MS |
7669 | reporter_attr = nla_nest_start_noflag(msg, |
7670 | DEVLINK_ATTR_HEALTH_REPORTER); | |
7671 | if (!reporter_attr) | |
7672 | goto genlmsg_cancel; | |
7673 | if (nla_put_string(msg, DEVLINK_ATTR_HEALTH_REPORTER_NAME, | |
7674 | reporter->ops->name)) | |
7675 | goto reporter_nest_cancel; | |
7676 | if (nla_put_u8(msg, DEVLINK_ATTR_HEALTH_REPORTER_STATE, | |
7677 | reporter->health_state)) | |
7678 | goto reporter_nest_cancel; | |
7679 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_HEALTH_REPORTER_ERR_COUNT, | |
7680 | reporter->error_count, DEVLINK_ATTR_PAD)) | |
7681 | goto reporter_nest_cancel; | |
7682 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_HEALTH_REPORTER_RECOVER_COUNT, | |
7683 | reporter->recovery_count, DEVLINK_ATTR_PAD)) | |
7684 | goto reporter_nest_cancel; | |
7685 | if (reporter->ops->recover && | |
7686 | nla_put_u64_64bit(msg, DEVLINK_ATTR_HEALTH_REPORTER_GRACEFUL_PERIOD, | |
7687 | reporter->graceful_period, | |
7688 | DEVLINK_ATTR_PAD)) | |
7689 | goto reporter_nest_cancel; | |
7690 | if (reporter->ops->recover && | |
7691 | nla_put_u8(msg, DEVLINK_ATTR_HEALTH_REPORTER_AUTO_RECOVER, | |
7692 | reporter->auto_recover)) | |
7693 | goto reporter_nest_cancel; | |
7694 | if (reporter->dump_fmsg && | |
7695 | nla_put_u64_64bit(msg, DEVLINK_ATTR_HEALTH_REPORTER_DUMP_TS, | |
7696 | jiffies_to_msecs(reporter->dump_ts), | |
7697 | DEVLINK_ATTR_PAD)) | |
7698 | goto reporter_nest_cancel; | |
7699 | if (reporter->dump_fmsg && | |
7700 | nla_put_u64_64bit(msg, DEVLINK_ATTR_HEALTH_REPORTER_DUMP_TS_NS, | |
7701 | reporter->dump_real_ts, DEVLINK_ATTR_PAD)) | |
7702 | goto reporter_nest_cancel; | |
48bb52c8 EBE |
7703 | if (reporter->ops->dump && |
7704 | nla_put_u8(msg, DEVLINK_ATTR_HEALTH_REPORTER_AUTO_DUMP, | |
7705 | reporter->auto_dump)) | |
7706 | goto reporter_nest_cancel; | |
6ec8b6cd MS |
7707 | |
7708 | nla_nest_end(msg, reporter_attr); | |
7709 | genlmsg_end(msg, hdr); | |
7710 | return 0; | |
7711 | ||
7712 | reporter_nest_cancel: | |
7713 | nla_nest_end(msg, reporter_attr); | |
7714 | genlmsg_cancel: | |
7715 | genlmsg_cancel(msg, hdr); | |
7716 | return -EMSGSIZE; | |
7717 | } | |
7718 | ||
7719 | static void devlink_recover_notify(struct devlink_health_reporter *reporter, | |
7720 | enum devlink_command cmd) | |
7721 | { | |
cf530217 | 7722 | struct devlink *devlink = reporter->devlink; |
6ec8b6cd MS |
7723 | struct sk_buff *msg; |
7724 | int err; | |
7725 | ||
7726 | WARN_ON(cmd != DEVLINK_CMD_HEALTH_REPORTER_RECOVER); | |
cf530217 | 7727 | WARN_ON(!xa_get_mark(&devlinks, devlink->index, DEVLINK_REGISTERED)); |
6ec8b6cd MS |
7728 | |
7729 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
7730 | if (!msg) | |
7731 | return; | |
7732 | ||
7ca973dc | 7733 | err = devlink_nl_health_reporter_fill(msg, reporter, cmd, 0, 0, 0); |
6ec8b6cd MS |
7734 | if (err) { |
7735 | nlmsg_free(msg); | |
7736 | return; | |
7737 | } | |
7738 | ||
cf530217 LR |
7739 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), msg, |
7740 | 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
6ec8b6cd MS |
7741 | } |
7742 | ||
6181e5cb VG |
7743 | void |
7744 | devlink_health_reporter_recovery_done(struct devlink_health_reporter *reporter) | |
7745 | { | |
7746 | reporter->recovery_count++; | |
7747 | reporter->last_recovery_ts = jiffies; | |
7748 | } | |
7749 | EXPORT_SYMBOL_GPL(devlink_health_reporter_recovery_done); | |
7750 | ||
c8e1da0b EBE |
7751 | static int |
7752 | devlink_health_reporter_recover(struct devlink_health_reporter *reporter, | |
e7a98105 | 7753 | void *priv_ctx, struct netlink_ext_ack *extack) |
c8e1da0b EBE |
7754 | { |
7755 | int err; | |
7756 | ||
40281820 JP |
7757 | if (reporter->health_state == DEVLINK_HEALTH_REPORTER_STATE_HEALTHY) |
7758 | return 0; | |
7759 | ||
c8e1da0b EBE |
7760 | if (!reporter->ops->recover) |
7761 | return -EOPNOTSUPP; | |
7762 | ||
e7a98105 | 7763 | err = reporter->ops->recover(reporter, priv_ctx, extack); |
c8e1da0b EBE |
7764 | if (err) |
7765 | return err; | |
7766 | ||
6181e5cb | 7767 | devlink_health_reporter_recovery_done(reporter); |
c8e1da0b | 7768 | reporter->health_state = DEVLINK_HEALTH_REPORTER_STATE_HEALTHY; |
6ec8b6cd | 7769 | devlink_recover_notify(reporter, DEVLINK_CMD_HEALTH_REPORTER_RECOVER); |
c8e1da0b EBE |
7770 | |
7771 | return 0; | |
7772 | } | |
7773 | ||
7774 | static void | |
7775 | devlink_health_dump_clear(struct devlink_health_reporter *reporter) | |
7776 | { | |
7777 | if (!reporter->dump_fmsg) | |
7778 | return; | |
7779 | devlink_fmsg_free(reporter->dump_fmsg); | |
7780 | reporter->dump_fmsg = NULL; | |
7781 | } | |
7782 | ||
7783 | static int devlink_health_do_dump(struct devlink_health_reporter *reporter, | |
e7a98105 JP |
7784 | void *priv_ctx, |
7785 | struct netlink_ext_ack *extack) | |
c8e1da0b EBE |
7786 | { |
7787 | int err; | |
7788 | ||
7789 | if (!reporter->ops->dump) | |
7790 | return 0; | |
7791 | ||
7792 | if (reporter->dump_fmsg) | |
7793 | return 0; | |
7794 | ||
7795 | reporter->dump_fmsg = devlink_fmsg_alloc(); | |
7796 | if (!reporter->dump_fmsg) { | |
7797 | err = -ENOMEM; | |
7798 | return err; | |
7799 | } | |
7800 | ||
7801 | err = devlink_fmsg_obj_nest_start(reporter->dump_fmsg); | |
7802 | if (err) | |
7803 | goto dump_err; | |
7804 | ||
7805 | err = reporter->ops->dump(reporter, reporter->dump_fmsg, | |
e7a98105 | 7806 | priv_ctx, extack); |
c8e1da0b EBE |
7807 | if (err) |
7808 | goto dump_err; | |
7809 | ||
7810 | err = devlink_fmsg_obj_nest_end(reporter->dump_fmsg); | |
7811 | if (err) | |
7812 | goto dump_err; | |
7813 | ||
7814 | reporter->dump_ts = jiffies; | |
d279505b | 7815 | reporter->dump_real_ts = ktime_get_real_ns(); |
c8e1da0b EBE |
7816 | |
7817 | return 0; | |
7818 | ||
7819 | dump_err: | |
7820 | devlink_health_dump_clear(reporter); | |
7821 | return err; | |
7822 | } | |
7823 | ||
7824 | int devlink_health_report(struct devlink_health_reporter *reporter, | |
7825 | const char *msg, void *priv_ctx) | |
7826 | { | |
a0a21adb | 7827 | enum devlink_health_reporter_state prev_health_state; |
c8e1da0b | 7828 | struct devlink *devlink = reporter->devlink; |
bea0c5c9 | 7829 | unsigned long recover_ts_threshold; |
c90005b5 | 7830 | int ret; |
c8e1da0b EBE |
7831 | |
7832 | /* write a log message of the current error */ | |
7833 | WARN_ON(!msg); | |
7834 | trace_devlink_health_report(devlink, reporter->ops->name, msg); | |
7835 | reporter->error_count++; | |
a0a21adb EBE |
7836 | prev_health_state = reporter->health_state; |
7837 | reporter->health_state = DEVLINK_HEALTH_REPORTER_STATE_ERROR; | |
6ec8b6cd | 7838 | devlink_recover_notify(reporter, DEVLINK_CMD_HEALTH_REPORTER_RECOVER); |
c8e1da0b EBE |
7839 | |
7840 | /* abort if the previous error wasn't recovered */ | |
bea0c5c9 AL |
7841 | recover_ts_threshold = reporter->last_recovery_ts + |
7842 | msecs_to_jiffies(reporter->graceful_period); | |
c8e1da0b | 7843 | if (reporter->auto_recover && |
a0a21adb | 7844 | (prev_health_state != DEVLINK_HEALTH_REPORTER_STATE_HEALTHY || |
bea0c5c9 AL |
7845 | (reporter->last_recovery_ts && reporter->recovery_count && |
7846 | time_is_after_jiffies(recover_ts_threshold)))) { | |
c8e1da0b EBE |
7847 | trace_devlink_health_recover_aborted(devlink, |
7848 | reporter->ops->name, | |
7849 | reporter->health_state, | |
7850 | jiffies - | |
7851 | reporter->last_recovery_ts); | |
7852 | return -ECANCELED; | |
7853 | } | |
7854 | ||
48bb52c8 EBE |
7855 | if (reporter->auto_dump) { |
7856 | mutex_lock(&reporter->dump_lock); | |
7857 | /* store current dump of current error, for later analysis */ | |
7858 | devlink_health_do_dump(reporter, priv_ctx, NULL); | |
7859 | mutex_unlock(&reporter->dump_lock); | |
7860 | } | |
c8e1da0b | 7861 | |
c90005b5 MS |
7862 | if (!reporter->auto_recover) |
7863 | return 0; | |
c8e1da0b | 7864 | |
c90005b5 MS |
7865 | devl_lock(devlink); |
7866 | ret = devlink_health_reporter_recover(reporter, priv_ctx, NULL); | |
7867 | devl_unlock(devlink); | |
7868 | ||
7869 | return ret; | |
c8e1da0b EBE |
7870 | } |
7871 | EXPORT_SYMBOL_GPL(devlink_health_report); | |
7872 | ||
7afe335a | 7873 | static struct devlink_health_reporter * |
e44ef4e4 AL |
7874 | devlink_health_reporter_get_from_attrs(struct devlink *devlink, |
7875 | struct nlattr **attrs) | |
7afe335a | 7876 | { |
b587bdaf | 7877 | struct devlink_health_reporter *reporter; |
f4f54166 | 7878 | struct devlink_port *devlink_port; |
7afe335a EBE |
7879 | char *reporter_name; |
7880 | ||
e44ef4e4 | 7881 | if (!attrs[DEVLINK_ATTR_HEALTH_REPORTER_NAME]) |
7afe335a EBE |
7882 | return NULL; |
7883 | ||
e44ef4e4 | 7884 | reporter_name = nla_data(attrs[DEVLINK_ATTR_HEALTH_REPORTER_NAME]); |
f4f54166 VT |
7885 | devlink_port = devlink_port_get_from_attrs(devlink, attrs); |
7886 | if (IS_ERR(devlink_port)) { | |
7887 | mutex_lock(&devlink->reporters_lock); | |
7888 | reporter = devlink_health_reporter_find_by_name(devlink, reporter_name); | |
7889 | if (reporter) | |
7890 | refcount_inc(&reporter->refcount); | |
7891 | mutex_unlock(&devlink->reporters_lock); | |
7892 | } else { | |
7893 | mutex_lock(&devlink_port->reporters_lock); | |
7894 | reporter = devlink_port_health_reporter_find_by_name(devlink_port, reporter_name); | |
7895 | if (reporter) | |
7896 | refcount_inc(&reporter->refcount); | |
7897 | mutex_unlock(&devlink_port->reporters_lock); | |
7898 | } | |
7899 | ||
b587bdaf MS |
7900 | return reporter; |
7901 | } | |
7902 | ||
e44ef4e4 AL |
7903 | static struct devlink_health_reporter * |
7904 | devlink_health_reporter_get_from_info(struct devlink *devlink, | |
7905 | struct genl_info *info) | |
7906 | { | |
7907 | return devlink_health_reporter_get_from_attrs(devlink, info->attrs); | |
7908 | } | |
7909 | ||
7910 | static struct devlink_health_reporter * | |
7911 | devlink_health_reporter_get_from_cb(struct netlink_callback *cb) | |
7912 | { | |
ee85da53 | 7913 | const struct genl_dumpit_info *info = genl_dumpit_info(cb); |
e44ef4e4 | 7914 | struct devlink_health_reporter *reporter; |
ee85da53 | 7915 | struct nlattr **attrs = info->attrs; |
e44ef4e4 | 7916 | struct devlink *devlink; |
e44ef4e4 | 7917 | |
e44ef4e4 AL |
7918 | devlink = devlink_get_from_attrs(sock_net(cb->skb->sk), attrs); |
7919 | if (IS_ERR(devlink)) | |
d3efc2a6 | 7920 | return NULL; |
e44ef4e4 AL |
7921 | |
7922 | reporter = devlink_health_reporter_get_from_attrs(devlink, attrs); | |
437ebfd9 | 7923 | devlink_put(devlink); |
e44ef4e4 | 7924 | return reporter; |
e44ef4e4 AL |
7925 | } |
7926 | ||
97ff3bd3 VG |
7927 | void |
7928 | devlink_health_reporter_state_update(struct devlink_health_reporter *reporter, | |
7929 | enum devlink_health_reporter_state state) | |
7930 | { | |
7931 | if (WARN_ON(state != DEVLINK_HEALTH_REPORTER_STATE_HEALTHY && | |
7932 | state != DEVLINK_HEALTH_REPORTER_STATE_ERROR)) | |
7933 | return; | |
7934 | ||
7935 | if (reporter->health_state == state) | |
7936 | return; | |
7937 | ||
7938 | reporter->health_state = state; | |
7939 | trace_devlink_health_reporter_state_update(reporter->devlink, | |
7940 | reporter->ops->name, state); | |
7941 | devlink_recover_notify(reporter, DEVLINK_CMD_HEALTH_REPORTER_RECOVER); | |
7942 | } | |
7943 | EXPORT_SYMBOL_GPL(devlink_health_reporter_state_update); | |
7944 | ||
7afe335a EBE |
7945 | static int devlink_nl_cmd_health_reporter_get_doit(struct sk_buff *skb, |
7946 | struct genl_info *info) | |
7947 | { | |
7948 | struct devlink *devlink = info->user_ptr[0]; | |
7949 | struct devlink_health_reporter *reporter; | |
7950 | struct sk_buff *msg; | |
7951 | int err; | |
7952 | ||
7953 | reporter = devlink_health_reporter_get_from_info(devlink, info); | |
7954 | if (!reporter) | |
7955 | return -EINVAL; | |
7956 | ||
7957 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
b587bdaf MS |
7958 | if (!msg) { |
7959 | err = -ENOMEM; | |
7960 | goto out; | |
7961 | } | |
7afe335a | 7962 | |
7ca973dc | 7963 | err = devlink_nl_health_reporter_fill(msg, reporter, |
7afe335a EBE |
7964 | DEVLINK_CMD_HEALTH_REPORTER_GET, |
7965 | info->snd_portid, info->snd_seq, | |
7966 | 0); | |
7967 | if (err) { | |
7968 | nlmsg_free(msg); | |
b587bdaf | 7969 | goto out; |
7afe335a EBE |
7970 | } |
7971 | ||
b587bdaf MS |
7972 | err = genlmsg_reply(msg, info); |
7973 | out: | |
7974 | devlink_health_reporter_put(reporter); | |
7975 | return err; | |
7afe335a EBE |
7976 | } |
7977 | ||
7978 | static int | |
7979 | devlink_nl_cmd_health_reporter_get_dumpit(struct sk_buff *msg, | |
7980 | struct netlink_callback *cb) | |
7981 | { | |
7982 | struct devlink_health_reporter *reporter; | |
f4f54166 | 7983 | struct devlink_port *port; |
7afe335a EBE |
7984 | struct devlink *devlink; |
7985 | int start = cb->args[0]; | |
11a861d7 | 7986 | unsigned long index; |
7afe335a EBE |
7987 | int idx = 0; |
7988 | int err; | |
7989 | ||
294c4f57 | 7990 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
b587bdaf | 7991 | mutex_lock(&devlink->reporters_lock); |
7afe335a EBE |
7992 | list_for_each_entry(reporter, &devlink->reporter_list, |
7993 | list) { | |
7994 | if (idx < start) { | |
7995 | idx++; | |
7996 | continue; | |
7997 | } | |
7ca973dc LR |
7998 | err = devlink_nl_health_reporter_fill( |
7999 | msg, reporter, DEVLINK_CMD_HEALTH_REPORTER_GET, | |
8000 | NETLINK_CB(cb->skb).portid, cb->nlh->nlmsg_seq, | |
8001 | NLM_F_MULTI); | |
7afe335a | 8002 | if (err) { |
b587bdaf | 8003 | mutex_unlock(&devlink->reporters_lock); |
437ebfd9 | 8004 | devlink_put(devlink); |
7afe335a EBE |
8005 | goto out; |
8006 | } | |
8007 | idx++; | |
8008 | } | |
b587bdaf | 8009 | mutex_unlock(&devlink->reporters_lock); |
437ebfd9 | 8010 | devlink_put(devlink); |
7afe335a | 8011 | } |
f4f54166 | 8012 | |
294c4f57 | 8013 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
7715023a | 8014 | devl_lock(devlink); |
f4f54166 VT |
8015 | list_for_each_entry(port, &devlink->port_list, list) { |
8016 | mutex_lock(&port->reporters_lock); | |
8017 | list_for_each_entry(reporter, &port->reporter_list, list) { | |
8018 | if (idx < start) { | |
8019 | idx++; | |
8020 | continue; | |
8021 | } | |
7ca973dc LR |
8022 | err = devlink_nl_health_reporter_fill( |
8023 | msg, reporter, | |
8024 | DEVLINK_CMD_HEALTH_REPORTER_GET, | |
8025 | NETLINK_CB(cb->skb).portid, | |
8026 | cb->nlh->nlmsg_seq, NLM_F_MULTI); | |
f4f54166 VT |
8027 | if (err) { |
8028 | mutex_unlock(&port->reporters_lock); | |
7715023a | 8029 | devl_unlock(devlink); |
437ebfd9 | 8030 | devlink_put(devlink); |
f4f54166 VT |
8031 | goto out; |
8032 | } | |
8033 | idx++; | |
8034 | } | |
8035 | mutex_unlock(&port->reporters_lock); | |
8036 | } | |
7715023a | 8037 | devl_unlock(devlink); |
437ebfd9 | 8038 | devlink_put(devlink); |
f4f54166 | 8039 | } |
7afe335a | 8040 | out: |
7afe335a EBE |
8041 | cb->args[0] = idx; |
8042 | return msg->len; | |
8043 | } | |
8044 | ||
a1e55ec0 EBE |
8045 | static int |
8046 | devlink_nl_cmd_health_reporter_set_doit(struct sk_buff *skb, | |
8047 | struct genl_info *info) | |
8048 | { | |
8049 | struct devlink *devlink = info->user_ptr[0]; | |
8050 | struct devlink_health_reporter *reporter; | |
b587bdaf | 8051 | int err; |
a1e55ec0 EBE |
8052 | |
8053 | reporter = devlink_health_reporter_get_from_info(devlink, info); | |
8054 | if (!reporter) | |
8055 | return -EINVAL; | |
8056 | ||
8057 | if (!reporter->ops->recover && | |
8058 | (info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_GRACEFUL_PERIOD] || | |
b587bdaf MS |
8059 | info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_AUTO_RECOVER])) { |
8060 | err = -EOPNOTSUPP; | |
8061 | goto out; | |
8062 | } | |
48bb52c8 EBE |
8063 | if (!reporter->ops->dump && |
8064 | info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_AUTO_DUMP]) { | |
8065 | err = -EOPNOTSUPP; | |
8066 | goto out; | |
8067 | } | |
a1e55ec0 EBE |
8068 | |
8069 | if (info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_GRACEFUL_PERIOD]) | |
8070 | reporter->graceful_period = | |
8071 | nla_get_u64(info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_GRACEFUL_PERIOD]); | |
8072 | ||
8073 | if (info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_AUTO_RECOVER]) | |
8074 | reporter->auto_recover = | |
8075 | nla_get_u8(info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_AUTO_RECOVER]); | |
8076 | ||
48bb52c8 EBE |
8077 | if (info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_AUTO_DUMP]) |
8078 | reporter->auto_dump = | |
8079 | nla_get_u8(info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_AUTO_DUMP]); | |
8080 | ||
b587bdaf | 8081 | devlink_health_reporter_put(reporter); |
a1e55ec0 | 8082 | return 0; |
b587bdaf MS |
8083 | out: |
8084 | devlink_health_reporter_put(reporter); | |
8085 | return err; | |
a1e55ec0 EBE |
8086 | } |
8087 | ||
20a0943a EBE |
8088 | static int devlink_nl_cmd_health_reporter_recover_doit(struct sk_buff *skb, |
8089 | struct genl_info *info) | |
8090 | { | |
8091 | struct devlink *devlink = info->user_ptr[0]; | |
8092 | struct devlink_health_reporter *reporter; | |
b587bdaf | 8093 | int err; |
20a0943a EBE |
8094 | |
8095 | reporter = devlink_health_reporter_get_from_info(devlink, info); | |
8096 | if (!reporter) | |
8097 | return -EINVAL; | |
8098 | ||
e7a98105 | 8099 | err = devlink_health_reporter_recover(reporter, NULL, info->extack); |
b587bdaf MS |
8100 | |
8101 | devlink_health_reporter_put(reporter); | |
8102 | return err; | |
20a0943a EBE |
8103 | } |
8104 | ||
fca42a27 EBE |
8105 | static int devlink_nl_cmd_health_reporter_diagnose_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 | struct devlink_fmsg *fmsg; | |
8111 | int err; | |
8112 | ||
8113 | reporter = devlink_health_reporter_get_from_info(devlink, info); | |
8114 | if (!reporter) | |
8115 | return -EINVAL; | |
8116 | ||
b587bdaf MS |
8117 | if (!reporter->ops->diagnose) { |
8118 | devlink_health_reporter_put(reporter); | |
fca42a27 | 8119 | return -EOPNOTSUPP; |
b587bdaf | 8120 | } |
fca42a27 EBE |
8121 | |
8122 | fmsg = devlink_fmsg_alloc(); | |
b587bdaf MS |
8123 | if (!fmsg) { |
8124 | devlink_health_reporter_put(reporter); | |
fca42a27 | 8125 | return -ENOMEM; |
b587bdaf | 8126 | } |
fca42a27 EBE |
8127 | |
8128 | err = devlink_fmsg_obj_nest_start(fmsg); | |
8129 | if (err) | |
8130 | goto out; | |
8131 | ||
e7a98105 | 8132 | err = reporter->ops->diagnose(reporter, fmsg, info->extack); |
fca42a27 EBE |
8133 | if (err) |
8134 | goto out; | |
8135 | ||
8136 | err = devlink_fmsg_obj_nest_end(fmsg); | |
8137 | if (err) | |
8138 | goto out; | |
8139 | ||
8140 | err = devlink_fmsg_snd(fmsg, info, | |
8141 | DEVLINK_CMD_HEALTH_REPORTER_DIAGNOSE, 0); | |
8142 | ||
8143 | out: | |
8144 | devlink_fmsg_free(fmsg); | |
b587bdaf | 8145 | devlink_health_reporter_put(reporter); |
fca42a27 EBE |
8146 | return err; |
8147 | } | |
8148 | ||
e44ef4e4 AL |
8149 | static int |
8150 | devlink_nl_cmd_health_reporter_dump_get_dumpit(struct sk_buff *skb, | |
8151 | struct netlink_callback *cb) | |
35455e23 | 8152 | { |
35455e23 | 8153 | struct devlink_health_reporter *reporter; |
e44ef4e4 | 8154 | u64 start = cb->args[0]; |
35455e23 EBE |
8155 | int err; |
8156 | ||
e44ef4e4 | 8157 | reporter = devlink_health_reporter_get_from_cb(cb); |
35455e23 EBE |
8158 | if (!reporter) |
8159 | return -EINVAL; | |
8160 | ||
b587bdaf | 8161 | if (!reporter->ops->dump) { |
e44ef4e4 AL |
8162 | err = -EOPNOTSUPP; |
8163 | goto out; | |
b587bdaf | 8164 | } |
35455e23 | 8165 | mutex_lock(&reporter->dump_lock); |
e44ef4e4 | 8166 | if (!start) { |
e7a98105 | 8167 | err = devlink_health_do_dump(reporter, NULL, cb->extack); |
e44ef4e4 AL |
8168 | if (err) |
8169 | goto unlock; | |
8170 | cb->args[1] = reporter->dump_ts; | |
8171 | } | |
8172 | if (!reporter->dump_fmsg || cb->args[1] != reporter->dump_ts) { | |
8173 | NL_SET_ERR_MSG_MOD(cb->extack, "Dump trampled, please retry"); | |
8174 | err = -EAGAIN; | |
8175 | goto unlock; | |
8176 | } | |
35455e23 | 8177 | |
e44ef4e4 AL |
8178 | err = devlink_fmsg_dumpit(reporter->dump_fmsg, skb, cb, |
8179 | DEVLINK_CMD_HEALTH_REPORTER_DUMP_GET); | |
8180 | unlock: | |
35455e23 | 8181 | mutex_unlock(&reporter->dump_lock); |
e44ef4e4 | 8182 | out: |
b587bdaf | 8183 | devlink_health_reporter_put(reporter); |
35455e23 EBE |
8184 | return err; |
8185 | } | |
8186 | ||
8187 | static int | |
8188 | devlink_nl_cmd_health_reporter_dump_clear_doit(struct sk_buff *skb, | |
8189 | struct genl_info *info) | |
8190 | { | |
8191 | struct devlink *devlink = info->user_ptr[0]; | |
8192 | struct devlink_health_reporter *reporter; | |
8193 | ||
8194 | reporter = devlink_health_reporter_get_from_info(devlink, info); | |
8195 | if (!reporter) | |
8196 | return -EINVAL; | |
8197 | ||
b587bdaf MS |
8198 | if (!reporter->ops->dump) { |
8199 | devlink_health_reporter_put(reporter); | |
35455e23 | 8200 | return -EOPNOTSUPP; |
b587bdaf | 8201 | } |
35455e23 EBE |
8202 | |
8203 | mutex_lock(&reporter->dump_lock); | |
8204 | devlink_health_dump_clear(reporter); | |
8205 | mutex_unlock(&reporter->dump_lock); | |
b587bdaf | 8206 | devlink_health_reporter_put(reporter); |
35455e23 EBE |
8207 | return 0; |
8208 | } | |
8209 | ||
e2ce94dc JP |
8210 | static int devlink_nl_cmd_health_reporter_test_doit(struct sk_buff *skb, |
8211 | struct genl_info *info) | |
8212 | { | |
8213 | struct devlink *devlink = info->user_ptr[0]; | |
8214 | struct devlink_health_reporter *reporter; | |
8215 | int err; | |
8216 | ||
8217 | reporter = devlink_health_reporter_get_from_info(devlink, info); | |
8218 | if (!reporter) | |
8219 | return -EINVAL; | |
8220 | ||
8221 | if (!reporter->ops->test) { | |
8222 | devlink_health_reporter_put(reporter); | |
8223 | return -EOPNOTSUPP; | |
8224 | } | |
8225 | ||
8226 | err = reporter->ops->test(reporter, info->extack); | |
8227 | ||
8228 | devlink_health_reporter_put(reporter); | |
8229 | return err; | |
8230 | } | |
8231 | ||
0f420b6c | 8232 | struct devlink_stats { |
958751e0 ED |
8233 | u64_stats_t rx_bytes; |
8234 | u64_stats_t rx_packets; | |
0f420b6c IS |
8235 | struct u64_stats_sync syncp; |
8236 | }; | |
8237 | ||
1e8c6619 IS |
8238 | /** |
8239 | * struct devlink_trap_policer_item - Packet trap policer attributes. | |
8240 | * @policer: Immutable packet trap policer attributes. | |
8241 | * @rate: Rate in packets / sec. | |
8242 | * @burst: Burst size in packets. | |
8243 | * @list: trap_policer_list member. | |
8244 | * | |
8245 | * Describes packet trap policer attributes. Created by devlink during trap | |
8246 | * policer registration. | |
8247 | */ | |
8248 | struct devlink_trap_policer_item { | |
8249 | const struct devlink_trap_policer *policer; | |
8250 | u64 rate; | |
8251 | u64 burst; | |
8252 | struct list_head list; | |
8253 | }; | |
8254 | ||
0f420b6c IS |
8255 | /** |
8256 | * struct devlink_trap_group_item - Packet trap group attributes. | |
8257 | * @group: Immutable packet trap group attributes. | |
f9f54392 | 8258 | * @policer_item: Associated policer item. Can be NULL. |
0f420b6c IS |
8259 | * @list: trap_group_list member. |
8260 | * @stats: Trap group statistics. | |
8261 | * | |
8262 | * Describes packet trap group attributes. Created by devlink during trap | |
a09b37fc | 8263 | * group registration. |
0f420b6c IS |
8264 | */ |
8265 | struct devlink_trap_group_item { | |
8266 | const struct devlink_trap_group *group; | |
f9f54392 | 8267 | struct devlink_trap_policer_item *policer_item; |
0f420b6c IS |
8268 | struct list_head list; |
8269 | struct devlink_stats __percpu *stats; | |
8270 | }; | |
8271 | ||
8272 | /** | |
8273 | * struct devlink_trap_item - Packet trap attributes. | |
8274 | * @trap: Immutable packet trap attributes. | |
8275 | * @group_item: Associated group item. | |
8276 | * @list: trap_list member. | |
8277 | * @action: Trap action. | |
8278 | * @stats: Trap statistics. | |
8279 | * @priv: Driver private information. | |
8280 | * | |
8281 | * Describes both mutable and immutable packet trap attributes. Created by | |
8282 | * devlink during trap registration and used for all trap related operations. | |
8283 | */ | |
8284 | struct devlink_trap_item { | |
8285 | const struct devlink_trap *trap; | |
8286 | struct devlink_trap_group_item *group_item; | |
8287 | struct list_head list; | |
8288 | enum devlink_trap_action action; | |
8289 | struct devlink_stats __percpu *stats; | |
8290 | void *priv; | |
8291 | }; | |
8292 | ||
1e8c6619 IS |
8293 | static struct devlink_trap_policer_item * |
8294 | devlink_trap_policer_item_lookup(struct devlink *devlink, u32 id) | |
8295 | { | |
8296 | struct devlink_trap_policer_item *policer_item; | |
8297 | ||
8298 | list_for_each_entry(policer_item, &devlink->trap_policer_list, list) { | |
8299 | if (policer_item->policer->id == id) | |
8300 | return policer_item; | |
8301 | } | |
8302 | ||
8303 | return NULL; | |
8304 | } | |
8305 | ||
0f420b6c IS |
8306 | static struct devlink_trap_item * |
8307 | devlink_trap_item_lookup(struct devlink *devlink, const char *name) | |
8308 | { | |
8309 | struct devlink_trap_item *trap_item; | |
8310 | ||
8311 | list_for_each_entry(trap_item, &devlink->trap_list, list) { | |
8312 | if (!strcmp(trap_item->trap->name, name)) | |
8313 | return trap_item; | |
8314 | } | |
8315 | ||
8316 | return NULL; | |
8317 | } | |
8318 | ||
8319 | static struct devlink_trap_item * | |
8320 | devlink_trap_item_get_from_info(struct devlink *devlink, | |
8321 | struct genl_info *info) | |
8322 | { | |
8323 | struct nlattr *attr; | |
8324 | ||
8325 | if (!info->attrs[DEVLINK_ATTR_TRAP_NAME]) | |
8326 | return NULL; | |
8327 | attr = info->attrs[DEVLINK_ATTR_TRAP_NAME]; | |
8328 | ||
8329 | return devlink_trap_item_lookup(devlink, nla_data(attr)); | |
8330 | } | |
8331 | ||
8332 | static int | |
8333 | devlink_trap_action_get_from_info(struct genl_info *info, | |
8334 | enum devlink_trap_action *p_trap_action) | |
8335 | { | |
8336 | u8 val; | |
8337 | ||
8338 | val = nla_get_u8(info->attrs[DEVLINK_ATTR_TRAP_ACTION]); | |
8339 | switch (val) { | |
df561f66 GS |
8340 | case DEVLINK_TRAP_ACTION_DROP: |
8341 | case DEVLINK_TRAP_ACTION_TRAP: | |
9eefeabe | 8342 | case DEVLINK_TRAP_ACTION_MIRROR: |
0f420b6c IS |
8343 | *p_trap_action = val; |
8344 | break; | |
8345 | default: | |
8346 | return -EINVAL; | |
8347 | } | |
8348 | ||
8349 | return 0; | |
8350 | } | |
8351 | ||
8352 | static int devlink_trap_metadata_put(struct sk_buff *msg, | |
8353 | const struct devlink_trap *trap) | |
8354 | { | |
8355 | struct nlattr *attr; | |
8356 | ||
8357 | attr = nla_nest_start(msg, DEVLINK_ATTR_TRAP_METADATA); | |
8358 | if (!attr) | |
8359 | return -EMSGSIZE; | |
8360 | ||
8361 | if ((trap->metadata_cap & DEVLINK_TRAP_METADATA_TYPE_F_IN_PORT) && | |
8362 | nla_put_flag(msg, DEVLINK_ATTR_TRAP_METADATA_TYPE_IN_PORT)) | |
8363 | goto nla_put_failure; | |
85b0589e JP |
8364 | if ((trap->metadata_cap & DEVLINK_TRAP_METADATA_TYPE_F_FA_COOKIE) && |
8365 | nla_put_flag(msg, DEVLINK_ATTR_TRAP_METADATA_TYPE_FA_COOKIE)) | |
8366 | goto nla_put_failure; | |
0f420b6c IS |
8367 | |
8368 | nla_nest_end(msg, attr); | |
8369 | ||
8370 | return 0; | |
8371 | ||
8372 | nla_put_failure: | |
8373 | nla_nest_cancel(msg, attr); | |
8374 | return -EMSGSIZE; | |
8375 | } | |
8376 | ||
8377 | static void devlink_trap_stats_read(struct devlink_stats __percpu *trap_stats, | |
8378 | struct devlink_stats *stats) | |
8379 | { | |
8380 | int i; | |
8381 | ||
8382 | memset(stats, 0, sizeof(*stats)); | |
8383 | for_each_possible_cpu(i) { | |
8384 | struct devlink_stats *cpu_stats; | |
8385 | u64 rx_packets, rx_bytes; | |
8386 | unsigned int start; | |
8387 | ||
8388 | cpu_stats = per_cpu_ptr(trap_stats, i); | |
8389 | do { | |
d120d1a6 | 8390 | start = u64_stats_fetch_begin(&cpu_stats->syncp); |
958751e0 ED |
8391 | rx_packets = u64_stats_read(&cpu_stats->rx_packets); |
8392 | rx_bytes = u64_stats_read(&cpu_stats->rx_bytes); | |
d120d1a6 | 8393 | } while (u64_stats_fetch_retry(&cpu_stats->syncp, start)); |
0f420b6c | 8394 | |
958751e0 ED |
8395 | u64_stats_add(&stats->rx_packets, rx_packets); |
8396 | u64_stats_add(&stats->rx_bytes, rx_bytes); | |
0f420b6c IS |
8397 | } |
8398 | } | |
8399 | ||
ddee9dbc OM |
8400 | static int |
8401 | devlink_trap_group_stats_put(struct sk_buff *msg, | |
8402 | struct devlink_stats __percpu *trap_stats) | |
0f420b6c IS |
8403 | { |
8404 | struct devlink_stats stats; | |
8405 | struct nlattr *attr; | |
8406 | ||
8407 | devlink_trap_stats_read(trap_stats, &stats); | |
8408 | ||
8409 | attr = nla_nest_start(msg, DEVLINK_ATTR_STATS); | |
8410 | if (!attr) | |
8411 | return -EMSGSIZE; | |
8412 | ||
8413 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_STATS_RX_PACKETS, | |
958751e0 ED |
8414 | u64_stats_read(&stats.rx_packets), |
8415 | DEVLINK_ATTR_PAD)) | |
0f420b6c IS |
8416 | goto nla_put_failure; |
8417 | ||
8418 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_STATS_RX_BYTES, | |
958751e0 ED |
8419 | u64_stats_read(&stats.rx_bytes), |
8420 | DEVLINK_ATTR_PAD)) | |
0f420b6c IS |
8421 | goto nla_put_failure; |
8422 | ||
8423 | nla_nest_end(msg, attr); | |
8424 | ||
8425 | return 0; | |
8426 | ||
8427 | nla_put_failure: | |
8428 | nla_nest_cancel(msg, attr); | |
8429 | return -EMSGSIZE; | |
8430 | } | |
8431 | ||
ddee9dbc OM |
8432 | static int devlink_trap_stats_put(struct sk_buff *msg, struct devlink *devlink, |
8433 | const struct devlink_trap_item *trap_item) | |
8434 | { | |
8435 | struct devlink_stats stats; | |
8436 | struct nlattr *attr; | |
8437 | u64 drops = 0; | |
8438 | int err; | |
8439 | ||
8440 | if (devlink->ops->trap_drop_counter_get) { | |
8441 | err = devlink->ops->trap_drop_counter_get(devlink, | |
8442 | trap_item->trap, | |
8443 | &drops); | |
8444 | if (err) | |
8445 | return err; | |
8446 | } | |
8447 | ||
8448 | devlink_trap_stats_read(trap_item->stats, &stats); | |
8449 | ||
8450 | attr = nla_nest_start(msg, DEVLINK_ATTR_STATS); | |
8451 | if (!attr) | |
8452 | return -EMSGSIZE; | |
8453 | ||
8454 | if (devlink->ops->trap_drop_counter_get && | |
8455 | nla_put_u64_64bit(msg, DEVLINK_ATTR_STATS_RX_DROPPED, drops, | |
8456 | DEVLINK_ATTR_PAD)) | |
8457 | goto nla_put_failure; | |
8458 | ||
8459 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_STATS_RX_PACKETS, | |
958751e0 ED |
8460 | u64_stats_read(&stats.rx_packets), |
8461 | DEVLINK_ATTR_PAD)) | |
ddee9dbc OM |
8462 | goto nla_put_failure; |
8463 | ||
8464 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_STATS_RX_BYTES, | |
958751e0 ED |
8465 | u64_stats_read(&stats.rx_bytes), |
8466 | DEVLINK_ATTR_PAD)) | |
ddee9dbc OM |
8467 | goto nla_put_failure; |
8468 | ||
8469 | nla_nest_end(msg, attr); | |
8470 | ||
8471 | return 0; | |
8472 | ||
8473 | nla_put_failure: | |
8474 | nla_nest_cancel(msg, attr); | |
8475 | return -EMSGSIZE; | |
8476 | } | |
8477 | ||
0f420b6c IS |
8478 | static int devlink_nl_trap_fill(struct sk_buff *msg, struct devlink *devlink, |
8479 | const struct devlink_trap_item *trap_item, | |
8480 | enum devlink_command cmd, u32 portid, u32 seq, | |
8481 | int flags) | |
8482 | { | |
8483 | struct devlink_trap_group_item *group_item = trap_item->group_item; | |
8484 | void *hdr; | |
8485 | int err; | |
8486 | ||
8487 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
8488 | if (!hdr) | |
8489 | return -EMSGSIZE; | |
8490 | ||
8491 | if (devlink_nl_put_handle(msg, devlink)) | |
8492 | goto nla_put_failure; | |
8493 | ||
8494 | if (nla_put_string(msg, DEVLINK_ATTR_TRAP_GROUP_NAME, | |
8495 | group_item->group->name)) | |
8496 | goto nla_put_failure; | |
8497 | ||
8498 | if (nla_put_string(msg, DEVLINK_ATTR_TRAP_NAME, trap_item->trap->name)) | |
8499 | goto nla_put_failure; | |
8500 | ||
8501 | if (nla_put_u8(msg, DEVLINK_ATTR_TRAP_TYPE, trap_item->trap->type)) | |
8502 | goto nla_put_failure; | |
8503 | ||
8504 | if (trap_item->trap->generic && | |
8505 | nla_put_flag(msg, DEVLINK_ATTR_TRAP_GENERIC)) | |
8506 | goto nla_put_failure; | |
8507 | ||
8508 | if (nla_put_u8(msg, DEVLINK_ATTR_TRAP_ACTION, trap_item->action)) | |
8509 | goto nla_put_failure; | |
8510 | ||
8511 | err = devlink_trap_metadata_put(msg, trap_item->trap); | |
8512 | if (err) | |
8513 | goto nla_put_failure; | |
8514 | ||
ddee9dbc | 8515 | err = devlink_trap_stats_put(msg, devlink, trap_item); |
0f420b6c IS |
8516 | if (err) |
8517 | goto nla_put_failure; | |
8518 | ||
8519 | genlmsg_end(msg, hdr); | |
8520 | ||
8521 | return 0; | |
8522 | ||
8523 | nla_put_failure: | |
8524 | genlmsg_cancel(msg, hdr); | |
8525 | return -EMSGSIZE; | |
8526 | } | |
8527 | ||
8528 | static int devlink_nl_cmd_trap_get_doit(struct sk_buff *skb, | |
8529 | struct genl_info *info) | |
8530 | { | |
8531 | struct netlink_ext_ack *extack = info->extack; | |
8532 | struct devlink *devlink = info->user_ptr[0]; | |
8533 | struct devlink_trap_item *trap_item; | |
8534 | struct sk_buff *msg; | |
8535 | int err; | |
8536 | ||
8537 | if (list_empty(&devlink->trap_list)) | |
8538 | return -EOPNOTSUPP; | |
8539 | ||
8540 | trap_item = devlink_trap_item_get_from_info(devlink, info); | |
8541 | if (!trap_item) { | |
8542 | NL_SET_ERR_MSG_MOD(extack, "Device did not register this trap"); | |
8543 | return -ENOENT; | |
8544 | } | |
8545 | ||
8546 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
8547 | if (!msg) | |
8548 | return -ENOMEM; | |
8549 | ||
8550 | err = devlink_nl_trap_fill(msg, devlink, trap_item, | |
8551 | DEVLINK_CMD_TRAP_NEW, info->snd_portid, | |
8552 | info->snd_seq, 0); | |
8553 | if (err) | |
8554 | goto err_trap_fill; | |
8555 | ||
8556 | return genlmsg_reply(msg, info); | |
8557 | ||
8558 | err_trap_fill: | |
8559 | nlmsg_free(msg); | |
8560 | return err; | |
8561 | } | |
8562 | ||
8563 | static int devlink_nl_cmd_trap_get_dumpit(struct sk_buff *msg, | |
8564 | struct netlink_callback *cb) | |
8565 | { | |
8566 | struct devlink_trap_item *trap_item; | |
8567 | struct devlink *devlink; | |
8568 | int start = cb->args[0]; | |
11a861d7 | 8569 | unsigned long index; |
0f420b6c IS |
8570 | int idx = 0; |
8571 | int err; | |
8572 | ||
294c4f57 | 8573 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
7715023a | 8574 | devl_lock(devlink); |
0f420b6c IS |
8575 | list_for_each_entry(trap_item, &devlink->trap_list, list) { |
8576 | if (idx < start) { | |
8577 | idx++; | |
8578 | continue; | |
8579 | } | |
8580 | err = devlink_nl_trap_fill(msg, devlink, trap_item, | |
8581 | DEVLINK_CMD_TRAP_NEW, | |
8582 | NETLINK_CB(cb->skb).portid, | |
8583 | cb->nlh->nlmsg_seq, | |
8584 | NLM_F_MULTI); | |
8585 | if (err) { | |
7715023a | 8586 | devl_unlock(devlink); |
437ebfd9 | 8587 | devlink_put(devlink); |
0f420b6c IS |
8588 | goto out; |
8589 | } | |
8590 | idx++; | |
8591 | } | |
7715023a | 8592 | devl_unlock(devlink); |
437ebfd9 | 8593 | devlink_put(devlink); |
0f420b6c IS |
8594 | } |
8595 | out: | |
0f420b6c IS |
8596 | cb->args[0] = idx; |
8597 | return msg->len; | |
8598 | } | |
8599 | ||
8600 | static int __devlink_trap_action_set(struct devlink *devlink, | |
8601 | struct devlink_trap_item *trap_item, | |
8602 | enum devlink_trap_action trap_action, | |
8603 | struct netlink_ext_ack *extack) | |
8604 | { | |
8605 | int err; | |
8606 | ||
8607 | if (trap_item->action != trap_action && | |
8608 | trap_item->trap->type != DEVLINK_TRAP_TYPE_DROP) { | |
8609 | NL_SET_ERR_MSG_MOD(extack, "Cannot change action of non-drop traps. Skipping"); | |
8610 | return 0; | |
8611 | } | |
8612 | ||
8613 | err = devlink->ops->trap_action_set(devlink, trap_item->trap, | |
c88e11e0 | 8614 | trap_action, extack); |
0f420b6c IS |
8615 | if (err) |
8616 | return err; | |
8617 | ||
8618 | trap_item->action = trap_action; | |
8619 | ||
8620 | return 0; | |
8621 | } | |
8622 | ||
8623 | static int devlink_trap_action_set(struct devlink *devlink, | |
8624 | struct devlink_trap_item *trap_item, | |
8625 | struct genl_info *info) | |
8626 | { | |
8627 | enum devlink_trap_action trap_action; | |
8628 | int err; | |
8629 | ||
8630 | if (!info->attrs[DEVLINK_ATTR_TRAP_ACTION]) | |
8631 | return 0; | |
8632 | ||
8633 | err = devlink_trap_action_get_from_info(info, &trap_action); | |
8634 | if (err) { | |
8635 | NL_SET_ERR_MSG_MOD(info->extack, "Invalid trap action"); | |
8636 | return -EINVAL; | |
8637 | } | |
8638 | ||
8639 | return __devlink_trap_action_set(devlink, trap_item, trap_action, | |
8640 | info->extack); | |
8641 | } | |
8642 | ||
8643 | static int devlink_nl_cmd_trap_set_doit(struct sk_buff *skb, | |
8644 | struct genl_info *info) | |
8645 | { | |
8646 | struct netlink_ext_ack *extack = info->extack; | |
8647 | struct devlink *devlink = info->user_ptr[0]; | |
8648 | struct devlink_trap_item *trap_item; | |
0f420b6c IS |
8649 | |
8650 | if (list_empty(&devlink->trap_list)) | |
8651 | return -EOPNOTSUPP; | |
8652 | ||
8653 | trap_item = devlink_trap_item_get_from_info(devlink, info); | |
8654 | if (!trap_item) { | |
8655 | NL_SET_ERR_MSG_MOD(extack, "Device did not register this trap"); | |
8656 | return -ENOENT; | |
8657 | } | |
8658 | ||
8daa76a5 | 8659 | return devlink_trap_action_set(devlink, trap_item, info); |
0f420b6c IS |
8660 | } |
8661 | ||
8662 | static struct devlink_trap_group_item * | |
8663 | devlink_trap_group_item_lookup(struct devlink *devlink, const char *name) | |
8664 | { | |
8665 | struct devlink_trap_group_item *group_item; | |
8666 | ||
8667 | list_for_each_entry(group_item, &devlink->trap_group_list, list) { | |
8668 | if (!strcmp(group_item->group->name, name)) | |
8669 | return group_item; | |
8670 | } | |
8671 | ||
8672 | return NULL; | |
8673 | } | |
8674 | ||
107f1678 IS |
8675 | static struct devlink_trap_group_item * |
8676 | devlink_trap_group_item_lookup_by_id(struct devlink *devlink, u16 id) | |
8677 | { | |
8678 | struct devlink_trap_group_item *group_item; | |
8679 | ||
8680 | list_for_each_entry(group_item, &devlink->trap_group_list, list) { | |
8681 | if (group_item->group->id == id) | |
8682 | return group_item; | |
8683 | } | |
8684 | ||
8685 | return NULL; | |
8686 | } | |
8687 | ||
0f420b6c IS |
8688 | static struct devlink_trap_group_item * |
8689 | devlink_trap_group_item_get_from_info(struct devlink *devlink, | |
8690 | struct genl_info *info) | |
8691 | { | |
8692 | char *name; | |
8693 | ||
8694 | if (!info->attrs[DEVLINK_ATTR_TRAP_GROUP_NAME]) | |
8695 | return NULL; | |
8696 | name = nla_data(info->attrs[DEVLINK_ATTR_TRAP_GROUP_NAME]); | |
8697 | ||
8698 | return devlink_trap_group_item_lookup(devlink, name); | |
8699 | } | |
8700 | ||
8701 | static int | |
8702 | devlink_nl_trap_group_fill(struct sk_buff *msg, struct devlink *devlink, | |
8703 | const struct devlink_trap_group_item *group_item, | |
8704 | enum devlink_command cmd, u32 portid, u32 seq, | |
8705 | int flags) | |
8706 | { | |
8707 | void *hdr; | |
8708 | int err; | |
8709 | ||
8710 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
8711 | if (!hdr) | |
8712 | return -EMSGSIZE; | |
8713 | ||
8714 | if (devlink_nl_put_handle(msg, devlink)) | |
8715 | goto nla_put_failure; | |
8716 | ||
8717 | if (nla_put_string(msg, DEVLINK_ATTR_TRAP_GROUP_NAME, | |
8718 | group_item->group->name)) | |
8719 | goto nla_put_failure; | |
8720 | ||
8721 | if (group_item->group->generic && | |
8722 | nla_put_flag(msg, DEVLINK_ATTR_TRAP_GENERIC)) | |
8723 | goto nla_put_failure; | |
8724 | ||
f9f54392 IS |
8725 | if (group_item->policer_item && |
8726 | nla_put_u32(msg, DEVLINK_ATTR_TRAP_POLICER_ID, | |
8727 | group_item->policer_item->policer->id)) | |
8728 | goto nla_put_failure; | |
8729 | ||
ddee9dbc | 8730 | err = devlink_trap_group_stats_put(msg, group_item->stats); |
0f420b6c IS |
8731 | if (err) |
8732 | goto nla_put_failure; | |
8733 | ||
8734 | genlmsg_end(msg, hdr); | |
8735 | ||
8736 | return 0; | |
8737 | ||
8738 | nla_put_failure: | |
8739 | genlmsg_cancel(msg, hdr); | |
8740 | return -EMSGSIZE; | |
8741 | } | |
8742 | ||
8743 | static int devlink_nl_cmd_trap_group_get_doit(struct sk_buff *skb, | |
8744 | struct genl_info *info) | |
8745 | { | |
8746 | struct netlink_ext_ack *extack = info->extack; | |
8747 | struct devlink *devlink = info->user_ptr[0]; | |
8748 | struct devlink_trap_group_item *group_item; | |
8749 | struct sk_buff *msg; | |
8750 | int err; | |
8751 | ||
8752 | if (list_empty(&devlink->trap_group_list)) | |
8753 | return -EOPNOTSUPP; | |
8754 | ||
8755 | group_item = devlink_trap_group_item_get_from_info(devlink, info); | |
8756 | if (!group_item) { | |
8757 | NL_SET_ERR_MSG_MOD(extack, "Device did not register this trap group"); | |
8758 | return -ENOENT; | |
8759 | } | |
8760 | ||
8761 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
8762 | if (!msg) | |
8763 | return -ENOMEM; | |
8764 | ||
8765 | err = devlink_nl_trap_group_fill(msg, devlink, group_item, | |
8766 | DEVLINK_CMD_TRAP_GROUP_NEW, | |
8767 | info->snd_portid, info->snd_seq, 0); | |
8768 | if (err) | |
8769 | goto err_trap_group_fill; | |
8770 | ||
8771 | return genlmsg_reply(msg, info); | |
8772 | ||
8773 | err_trap_group_fill: | |
8774 | nlmsg_free(msg); | |
8775 | return err; | |
8776 | } | |
8777 | ||
8778 | static int devlink_nl_cmd_trap_group_get_dumpit(struct sk_buff *msg, | |
8779 | struct netlink_callback *cb) | |
8780 | { | |
8781 | enum devlink_command cmd = DEVLINK_CMD_TRAP_GROUP_NEW; | |
8782 | struct devlink_trap_group_item *group_item; | |
8783 | u32 portid = NETLINK_CB(cb->skb).portid; | |
8784 | struct devlink *devlink; | |
8785 | int start = cb->args[0]; | |
11a861d7 | 8786 | unsigned long index; |
0f420b6c IS |
8787 | int idx = 0; |
8788 | int err; | |
8789 | ||
294c4f57 | 8790 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
7715023a | 8791 | devl_lock(devlink); |
0f420b6c IS |
8792 | list_for_each_entry(group_item, &devlink->trap_group_list, |
8793 | list) { | |
8794 | if (idx < start) { | |
8795 | idx++; | |
8796 | continue; | |
8797 | } | |
8798 | err = devlink_nl_trap_group_fill(msg, devlink, | |
8799 | group_item, cmd, | |
8800 | portid, | |
8801 | cb->nlh->nlmsg_seq, | |
8802 | NLM_F_MULTI); | |
8803 | if (err) { | |
7715023a | 8804 | devl_unlock(devlink); |
437ebfd9 | 8805 | devlink_put(devlink); |
0f420b6c IS |
8806 | goto out; |
8807 | } | |
8808 | idx++; | |
8809 | } | |
7715023a | 8810 | devl_unlock(devlink); |
437ebfd9 | 8811 | devlink_put(devlink); |
0f420b6c IS |
8812 | } |
8813 | out: | |
0f420b6c IS |
8814 | cb->args[0] = idx; |
8815 | return msg->len; | |
8816 | } | |
8817 | ||
8818 | static int | |
8819 | __devlink_trap_group_action_set(struct devlink *devlink, | |
8820 | struct devlink_trap_group_item *group_item, | |
8821 | enum devlink_trap_action trap_action, | |
8822 | struct netlink_ext_ack *extack) | |
8823 | { | |
8824 | const char *group_name = group_item->group->name; | |
8825 | struct devlink_trap_item *trap_item; | |
8826 | int err; | |
8827 | ||
c50bf2be IC |
8828 | if (devlink->ops->trap_group_action_set) { |
8829 | err = devlink->ops->trap_group_action_set(devlink, group_item->group, | |
8830 | trap_action, extack); | |
8831 | if (err) | |
8832 | return err; | |
8833 | ||
8834 | list_for_each_entry(trap_item, &devlink->trap_list, list) { | |
8835 | if (strcmp(trap_item->group_item->group->name, group_name)) | |
8836 | continue; | |
8837 | if (trap_item->action != trap_action && | |
8838 | trap_item->trap->type != DEVLINK_TRAP_TYPE_DROP) | |
8839 | continue; | |
8840 | trap_item->action = trap_action; | |
8841 | } | |
8842 | ||
8843 | return 0; | |
8844 | } | |
8845 | ||
0f420b6c | 8846 | list_for_each_entry(trap_item, &devlink->trap_list, list) { |
107f1678 | 8847 | if (strcmp(trap_item->group_item->group->name, group_name)) |
0f420b6c IS |
8848 | continue; |
8849 | err = __devlink_trap_action_set(devlink, trap_item, | |
8850 | trap_action, extack); | |
8851 | if (err) | |
8852 | return err; | |
8853 | } | |
8854 | ||
8855 | return 0; | |
8856 | } | |
8857 | ||
8858 | static int | |
8859 | devlink_trap_group_action_set(struct devlink *devlink, | |
8860 | struct devlink_trap_group_item *group_item, | |
c064875a | 8861 | struct genl_info *info, bool *p_modified) |
0f420b6c IS |
8862 | { |
8863 | enum devlink_trap_action trap_action; | |
8864 | int err; | |
8865 | ||
8866 | if (!info->attrs[DEVLINK_ATTR_TRAP_ACTION]) | |
8867 | return 0; | |
8868 | ||
8869 | err = devlink_trap_action_get_from_info(info, &trap_action); | |
8870 | if (err) { | |
8871 | NL_SET_ERR_MSG_MOD(info->extack, "Invalid trap action"); | |
8872 | return -EINVAL; | |
8873 | } | |
8874 | ||
8875 | err = __devlink_trap_group_action_set(devlink, group_item, trap_action, | |
8876 | info->extack); | |
8877 | if (err) | |
8878 | return err; | |
8879 | ||
c064875a IS |
8880 | *p_modified = true; |
8881 | ||
8882 | return 0; | |
8883 | } | |
8884 | ||
8885 | static int devlink_trap_group_set(struct devlink *devlink, | |
8886 | struct devlink_trap_group_item *group_item, | |
8887 | struct genl_info *info) | |
8888 | { | |
8889 | struct devlink_trap_policer_item *policer_item; | |
8890 | struct netlink_ext_ack *extack = info->extack; | |
8891 | const struct devlink_trap_policer *policer; | |
8892 | struct nlattr **attrs = info->attrs; | |
8893 | int err; | |
8894 | ||
8895 | if (!attrs[DEVLINK_ATTR_TRAP_POLICER_ID]) | |
8896 | return 0; | |
8897 | ||
8898 | if (!devlink->ops->trap_group_set) | |
8899 | return -EOPNOTSUPP; | |
8900 | ||
8901 | policer_item = group_item->policer_item; | |
8902 | if (attrs[DEVLINK_ATTR_TRAP_POLICER_ID]) { | |
8903 | u32 policer_id; | |
8904 | ||
8905 | policer_id = nla_get_u32(attrs[DEVLINK_ATTR_TRAP_POLICER_ID]); | |
8906 | policer_item = devlink_trap_policer_item_lookup(devlink, | |
8907 | policer_id); | |
8908 | if (policer_id && !policer_item) { | |
8909 | NL_SET_ERR_MSG_MOD(extack, "Device did not register this trap policer"); | |
8910 | return -ENOENT; | |
8911 | } | |
8912 | } | |
8913 | policer = policer_item ? policer_item->policer : NULL; | |
8914 | ||
c88e11e0 IS |
8915 | err = devlink->ops->trap_group_set(devlink, group_item->group, policer, |
8916 | extack); | |
c064875a IS |
8917 | if (err) |
8918 | return err; | |
8919 | ||
8920 | group_item->policer_item = policer_item; | |
8921 | ||
0f420b6c IS |
8922 | return 0; |
8923 | } | |
8924 | ||
8925 | static int devlink_nl_cmd_trap_group_set_doit(struct sk_buff *skb, | |
8926 | struct genl_info *info) | |
8927 | { | |
8928 | struct netlink_ext_ack *extack = info->extack; | |
8929 | struct devlink *devlink = info->user_ptr[0]; | |
8930 | struct devlink_trap_group_item *group_item; | |
c064875a | 8931 | bool modified = false; |
0f420b6c IS |
8932 | int err; |
8933 | ||
8934 | if (list_empty(&devlink->trap_group_list)) | |
8935 | return -EOPNOTSUPP; | |
8936 | ||
8937 | group_item = devlink_trap_group_item_get_from_info(devlink, info); | |
8938 | if (!group_item) { | |
8939 | NL_SET_ERR_MSG_MOD(extack, "Device did not register this trap group"); | |
8940 | return -ENOENT; | |
8941 | } | |
8942 | ||
c064875a IS |
8943 | err = devlink_trap_group_action_set(devlink, group_item, info, |
8944 | &modified); | |
0f420b6c IS |
8945 | if (err) |
8946 | return err; | |
8947 | ||
c064875a IS |
8948 | err = devlink_trap_group_set(devlink, group_item, info); |
8949 | if (err) | |
8950 | goto err_trap_group_set; | |
8951 | ||
0f420b6c | 8952 | return 0; |
c064875a IS |
8953 | |
8954 | err_trap_group_set: | |
8955 | if (modified) | |
8956 | NL_SET_ERR_MSG_MOD(extack, "Trap group set failed, but some changes were committed already"); | |
8957 | return err; | |
0f420b6c IS |
8958 | } |
8959 | ||
1e8c6619 IS |
8960 | static struct devlink_trap_policer_item * |
8961 | devlink_trap_policer_item_get_from_info(struct devlink *devlink, | |
8962 | struct genl_info *info) | |
8963 | { | |
8964 | u32 id; | |
8965 | ||
8966 | if (!info->attrs[DEVLINK_ATTR_TRAP_POLICER_ID]) | |
8967 | return NULL; | |
8968 | id = nla_get_u32(info->attrs[DEVLINK_ATTR_TRAP_POLICER_ID]); | |
8969 | ||
8970 | return devlink_trap_policer_item_lookup(devlink, id); | |
8971 | } | |
8972 | ||
8973 | static int | |
8974 | devlink_trap_policer_stats_put(struct sk_buff *msg, struct devlink *devlink, | |
8975 | const struct devlink_trap_policer *policer) | |
8976 | { | |
8977 | struct nlattr *attr; | |
8978 | u64 drops; | |
8979 | int err; | |
8980 | ||
8981 | if (!devlink->ops->trap_policer_counter_get) | |
8982 | return 0; | |
8983 | ||
8984 | err = devlink->ops->trap_policer_counter_get(devlink, policer, &drops); | |
8985 | if (err) | |
8986 | return err; | |
8987 | ||
8988 | attr = nla_nest_start(msg, DEVLINK_ATTR_STATS); | |
8989 | if (!attr) | |
8990 | return -EMSGSIZE; | |
8991 | ||
8992 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_STATS_RX_DROPPED, drops, | |
8993 | DEVLINK_ATTR_PAD)) | |
8994 | goto nla_put_failure; | |
8995 | ||
8996 | nla_nest_end(msg, attr); | |
8997 | ||
8998 | return 0; | |
8999 | ||
9000 | nla_put_failure: | |
9001 | nla_nest_cancel(msg, attr); | |
9002 | return -EMSGSIZE; | |
9003 | } | |
9004 | ||
9005 | static int | |
9006 | devlink_nl_trap_policer_fill(struct sk_buff *msg, struct devlink *devlink, | |
9007 | const struct devlink_trap_policer_item *policer_item, | |
9008 | enum devlink_command cmd, u32 portid, u32 seq, | |
9009 | int flags) | |
9010 | { | |
9011 | void *hdr; | |
9012 | int err; | |
9013 | ||
9014 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
9015 | if (!hdr) | |
9016 | return -EMSGSIZE; | |
9017 | ||
9018 | if (devlink_nl_put_handle(msg, devlink)) | |
9019 | goto nla_put_failure; | |
9020 | ||
9021 | if (nla_put_u32(msg, DEVLINK_ATTR_TRAP_POLICER_ID, | |
9022 | policer_item->policer->id)) | |
9023 | goto nla_put_failure; | |
9024 | ||
9025 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_TRAP_POLICER_RATE, | |
9026 | policer_item->rate, DEVLINK_ATTR_PAD)) | |
9027 | goto nla_put_failure; | |
9028 | ||
9029 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_TRAP_POLICER_BURST, | |
9030 | policer_item->burst, DEVLINK_ATTR_PAD)) | |
9031 | goto nla_put_failure; | |
9032 | ||
9033 | err = devlink_trap_policer_stats_put(msg, devlink, | |
9034 | policer_item->policer); | |
9035 | if (err) | |
9036 | goto nla_put_failure; | |
9037 | ||
9038 | genlmsg_end(msg, hdr); | |
9039 | ||
9040 | return 0; | |
9041 | ||
9042 | nla_put_failure: | |
9043 | genlmsg_cancel(msg, hdr); | |
9044 | return -EMSGSIZE; | |
9045 | } | |
9046 | ||
9047 | static int devlink_nl_cmd_trap_policer_get_doit(struct sk_buff *skb, | |
9048 | struct genl_info *info) | |
9049 | { | |
9050 | struct devlink_trap_policer_item *policer_item; | |
9051 | struct netlink_ext_ack *extack = info->extack; | |
9052 | struct devlink *devlink = info->user_ptr[0]; | |
9053 | struct sk_buff *msg; | |
9054 | int err; | |
9055 | ||
9056 | if (list_empty(&devlink->trap_policer_list)) | |
9057 | return -EOPNOTSUPP; | |
9058 | ||
9059 | policer_item = devlink_trap_policer_item_get_from_info(devlink, info); | |
9060 | if (!policer_item) { | |
9061 | NL_SET_ERR_MSG_MOD(extack, "Device did not register this trap policer"); | |
9062 | return -ENOENT; | |
9063 | } | |
9064 | ||
9065 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
9066 | if (!msg) | |
9067 | return -ENOMEM; | |
9068 | ||
9069 | err = devlink_nl_trap_policer_fill(msg, devlink, policer_item, | |
9070 | DEVLINK_CMD_TRAP_POLICER_NEW, | |
9071 | info->snd_portid, info->snd_seq, 0); | |
9072 | if (err) | |
9073 | goto err_trap_policer_fill; | |
9074 | ||
9075 | return genlmsg_reply(msg, info); | |
9076 | ||
9077 | err_trap_policer_fill: | |
9078 | nlmsg_free(msg); | |
9079 | return err; | |
9080 | } | |
9081 | ||
9082 | static int devlink_nl_cmd_trap_policer_get_dumpit(struct sk_buff *msg, | |
9083 | struct netlink_callback *cb) | |
9084 | { | |
9085 | enum devlink_command cmd = DEVLINK_CMD_TRAP_POLICER_NEW; | |
9086 | struct devlink_trap_policer_item *policer_item; | |
9087 | u32 portid = NETLINK_CB(cb->skb).portid; | |
9088 | struct devlink *devlink; | |
9089 | int start = cb->args[0]; | |
11a861d7 | 9090 | unsigned long index; |
1e8c6619 IS |
9091 | int idx = 0; |
9092 | int err; | |
9093 | ||
294c4f57 | 9094 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
7715023a | 9095 | devl_lock(devlink); |
1e8c6619 IS |
9096 | list_for_each_entry(policer_item, &devlink->trap_policer_list, |
9097 | list) { | |
9098 | if (idx < start) { | |
9099 | idx++; | |
9100 | continue; | |
9101 | } | |
9102 | err = devlink_nl_trap_policer_fill(msg, devlink, | |
9103 | policer_item, cmd, | |
9104 | portid, | |
9105 | cb->nlh->nlmsg_seq, | |
9106 | NLM_F_MULTI); | |
9107 | if (err) { | |
7715023a | 9108 | devl_unlock(devlink); |
437ebfd9 | 9109 | devlink_put(devlink); |
1e8c6619 IS |
9110 | goto out; |
9111 | } | |
9112 | idx++; | |
9113 | } | |
7715023a | 9114 | devl_unlock(devlink); |
437ebfd9 | 9115 | devlink_put(devlink); |
1e8c6619 IS |
9116 | } |
9117 | out: | |
1e8c6619 IS |
9118 | cb->args[0] = idx; |
9119 | return msg->len; | |
9120 | } | |
9121 | ||
9122 | static int | |
9123 | devlink_trap_policer_set(struct devlink *devlink, | |
9124 | struct devlink_trap_policer_item *policer_item, | |
9125 | struct genl_info *info) | |
9126 | { | |
9127 | struct netlink_ext_ack *extack = info->extack; | |
9128 | struct nlattr **attrs = info->attrs; | |
9129 | u64 rate, burst; | |
9130 | int err; | |
9131 | ||
9132 | rate = policer_item->rate; | |
9133 | burst = policer_item->burst; | |
9134 | ||
9135 | if (attrs[DEVLINK_ATTR_TRAP_POLICER_RATE]) | |
9136 | rate = nla_get_u64(attrs[DEVLINK_ATTR_TRAP_POLICER_RATE]); | |
9137 | ||
9138 | if (attrs[DEVLINK_ATTR_TRAP_POLICER_BURST]) | |
9139 | burst = nla_get_u64(attrs[DEVLINK_ATTR_TRAP_POLICER_BURST]); | |
9140 | ||
9141 | if (rate < policer_item->policer->min_rate) { | |
9142 | NL_SET_ERR_MSG_MOD(extack, "Policer rate lower than limit"); | |
9143 | return -EINVAL; | |
9144 | } | |
9145 | ||
9146 | if (rate > policer_item->policer->max_rate) { | |
9147 | NL_SET_ERR_MSG_MOD(extack, "Policer rate higher than limit"); | |
9148 | return -EINVAL; | |
9149 | } | |
9150 | ||
9151 | if (burst < policer_item->policer->min_burst) { | |
9152 | NL_SET_ERR_MSG_MOD(extack, "Policer burst size lower than limit"); | |
9153 | return -EINVAL; | |
9154 | } | |
9155 | ||
9156 | if (burst > policer_item->policer->max_burst) { | |
9157 | NL_SET_ERR_MSG_MOD(extack, "Policer burst size higher than limit"); | |
9158 | return -EINVAL; | |
9159 | } | |
9160 | ||
9161 | err = devlink->ops->trap_policer_set(devlink, policer_item->policer, | |
9162 | rate, burst, info->extack); | |
9163 | if (err) | |
9164 | return err; | |
9165 | ||
9166 | policer_item->rate = rate; | |
9167 | policer_item->burst = burst; | |
9168 | ||
9169 | return 0; | |
9170 | } | |
9171 | ||
9172 | static int devlink_nl_cmd_trap_policer_set_doit(struct sk_buff *skb, | |
9173 | struct genl_info *info) | |
9174 | { | |
9175 | struct devlink_trap_policer_item *policer_item; | |
9176 | struct netlink_ext_ack *extack = info->extack; | |
9177 | struct devlink *devlink = info->user_ptr[0]; | |
9178 | ||
9179 | if (list_empty(&devlink->trap_policer_list)) | |
9180 | return -EOPNOTSUPP; | |
9181 | ||
9182 | if (!devlink->ops->trap_policer_set) | |
9183 | return -EOPNOTSUPP; | |
9184 | ||
9185 | policer_item = devlink_trap_policer_item_get_from_info(devlink, info); | |
9186 | if (!policer_item) { | |
9187 | NL_SET_ERR_MSG_MOD(extack, "Device did not register this trap policer"); | |
9188 | return -ENOENT; | |
9189 | } | |
9190 | ||
9191 | return devlink_trap_policer_set(devlink, policer_item, info); | |
9192 | } | |
9193 | ||
bfcd3a46 | 9194 | static const struct nla_policy devlink_nl_policy[DEVLINK_ATTR_MAX + 1] = { |
1e8c6619 IS |
9195 | [DEVLINK_ATTR_UNSPEC] = { .strict_start_type = |
9196 | DEVLINK_ATTR_TRAP_POLICER_ID }, | |
bfcd3a46 JP |
9197 | [DEVLINK_ATTR_BUS_NAME] = { .type = NLA_NUL_STRING }, |
9198 | [DEVLINK_ATTR_DEV_NAME] = { .type = NLA_NUL_STRING }, | |
9199 | [DEVLINK_ATTR_PORT_INDEX] = { .type = NLA_U32 }, | |
c49a9440 PP |
9200 | [DEVLINK_ATTR_PORT_TYPE] = NLA_POLICY_RANGE(NLA_U16, DEVLINK_PORT_TYPE_AUTO, |
9201 | DEVLINK_PORT_TYPE_IB), | |
bfcd3a46 | 9202 | [DEVLINK_ATTR_PORT_SPLIT_COUNT] = { .type = NLA_U32 }, |
bf797471 JP |
9203 | [DEVLINK_ATTR_SB_INDEX] = { .type = NLA_U32 }, |
9204 | [DEVLINK_ATTR_SB_POOL_INDEX] = { .type = NLA_U16 }, | |
9205 | [DEVLINK_ATTR_SB_POOL_TYPE] = { .type = NLA_U8 }, | |
9206 | [DEVLINK_ATTR_SB_POOL_SIZE] = { .type = NLA_U32 }, | |
9207 | [DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE] = { .type = NLA_U8 }, | |
9208 | [DEVLINK_ATTR_SB_THRESHOLD] = { .type = NLA_U32 }, | |
9209 | [DEVLINK_ATTR_SB_TC_INDEX] = { .type = NLA_U16 }, | |
ba356c90 PP |
9210 | [DEVLINK_ATTR_ESWITCH_MODE] = NLA_POLICY_RANGE(NLA_U16, DEVLINK_ESWITCH_MODE_LEGACY, |
9211 | DEVLINK_ESWITCH_MODE_SWITCHDEV), | |
59bfde01 | 9212 | [DEVLINK_ATTR_ESWITCH_INLINE_MODE] = { .type = NLA_U8 }, |
f43e9b06 | 9213 | [DEVLINK_ATTR_ESWITCH_ENCAP_MODE] = { .type = NLA_U8 }, |
1555d204 AS |
9214 | [DEVLINK_ATTR_DPIPE_TABLE_NAME] = { .type = NLA_NUL_STRING }, |
9215 | [DEVLINK_ATTR_DPIPE_TABLE_COUNTERS_ENABLED] = { .type = NLA_U8 }, | |
d9f9b9a4 AS |
9216 | [DEVLINK_ATTR_RESOURCE_ID] = { .type = NLA_U64}, |
9217 | [DEVLINK_ATTR_RESOURCE_SIZE] = { .type = NLA_U64}, | |
e3b7ca18 MS |
9218 | [DEVLINK_ATTR_PARAM_NAME] = { .type = NLA_NUL_STRING }, |
9219 | [DEVLINK_ATTR_PARAM_TYPE] = { .type = NLA_U8 }, | |
9220 | [DEVLINK_ATTR_PARAM_VALUE_CMODE] = { .type = NLA_U8 }, | |
d8db7ea5 | 9221 | [DEVLINK_ATTR_REGION_NAME] = { .type = NLA_NUL_STRING }, |
866319bb | 9222 | [DEVLINK_ATTR_REGION_SNAPSHOT_ID] = { .type = NLA_U32 }, |
ff3b63b8 JK |
9223 | [DEVLINK_ATTR_REGION_CHUNK_ADDR] = { .type = NLA_U64 }, |
9224 | [DEVLINK_ATTR_REGION_CHUNK_LEN] = { .type = NLA_U64 }, | |
7afe335a | 9225 | [DEVLINK_ATTR_HEALTH_REPORTER_NAME] = { .type = NLA_NUL_STRING }, |
a1e55ec0 EBE |
9226 | [DEVLINK_ATTR_HEALTH_REPORTER_GRACEFUL_PERIOD] = { .type = NLA_U64 }, |
9227 | [DEVLINK_ATTR_HEALTH_REPORTER_AUTO_RECOVER] = { .type = NLA_U8 }, | |
76726ccb JK |
9228 | [DEVLINK_ATTR_FLASH_UPDATE_FILE_NAME] = { .type = NLA_NUL_STRING }, |
9229 | [DEVLINK_ATTR_FLASH_UPDATE_COMPONENT] = { .type = NLA_NUL_STRING }, | |
5d5b4128 JK |
9230 | [DEVLINK_ATTR_FLASH_UPDATE_OVERWRITE_MASK] = |
9231 | NLA_POLICY_BITFIELD32(DEVLINK_SUPPORTED_FLASH_OVERWRITE_SECTIONS), | |
0f420b6c IS |
9232 | [DEVLINK_ATTR_TRAP_NAME] = { .type = NLA_NUL_STRING }, |
9233 | [DEVLINK_ATTR_TRAP_ACTION] = { .type = NLA_U8 }, | |
9234 | [DEVLINK_ATTR_TRAP_GROUP_NAME] = { .type = NLA_NUL_STRING }, | |
070c63f2 JP |
9235 | [DEVLINK_ATTR_NETNS_PID] = { .type = NLA_U32 }, |
9236 | [DEVLINK_ATTR_NETNS_FD] = { .type = NLA_U32 }, | |
9237 | [DEVLINK_ATTR_NETNS_ID] = { .type = NLA_U32 }, | |
48bb52c8 | 9238 | [DEVLINK_ATTR_HEALTH_REPORTER_AUTO_DUMP] = { .type = NLA_U8 }, |
1e8c6619 IS |
9239 | [DEVLINK_ATTR_TRAP_POLICER_ID] = { .type = NLA_U32 }, |
9240 | [DEVLINK_ATTR_TRAP_POLICER_RATE] = { .type = NLA_U64 }, | |
9241 | [DEVLINK_ATTR_TRAP_POLICER_BURST] = { .type = NLA_U64 }, | |
a1e8ae90 | 9242 | [DEVLINK_ATTR_PORT_FUNCTION] = { .type = NLA_NESTED }, |
ccdf0721 MS |
9243 | [DEVLINK_ATTR_RELOAD_ACTION] = NLA_POLICY_RANGE(NLA_U8, DEVLINK_RELOAD_ACTION_DRIVER_REINIT, |
9244 | DEVLINK_RELOAD_ACTION_MAX), | |
dc64cc7c | 9245 | [DEVLINK_ATTR_RELOAD_LIMITS] = NLA_POLICY_BITFIELD32(DEVLINK_RELOAD_LIMITS_VALID_MASK), |
cd76dcd6 PP |
9246 | [DEVLINK_ATTR_PORT_FLAVOUR] = { .type = NLA_U16 }, |
9247 | [DEVLINK_ATTR_PORT_PCI_PF_NUMBER] = { .type = NLA_U16 }, | |
9248 | [DEVLINK_ATTR_PORT_PCI_SF_NUMBER] = { .type = NLA_U32 }, | |
9249 | [DEVLINK_ATTR_PORT_CONTROLLER_NUMBER] = { .type = NLA_U32 }, | |
4677efc4 | 9250 | [DEVLINK_ATTR_RATE_TYPE] = { .type = NLA_U16 }, |
1897db2e DL |
9251 | [DEVLINK_ATTR_RATE_TX_SHARE] = { .type = NLA_U64 }, |
9252 | [DEVLINK_ATTR_RATE_TX_MAX] = { .type = NLA_U64 }, | |
a8ecb93e | 9253 | [DEVLINK_ATTR_RATE_NODE_NAME] = { .type = NLA_NUL_STRING }, |
d7555984 | 9254 | [DEVLINK_ATTR_RATE_PARENT_NODE_NAME] = { .type = NLA_NUL_STRING }, |
c246f9b5 | 9255 | [DEVLINK_ATTR_LINECARD_INDEX] = { .type = NLA_U32 }, |
fcdc8ce2 | 9256 | [DEVLINK_ATTR_LINECARD_TYPE] = { .type = NLA_NUL_STRING }, |
08f588fa | 9257 | [DEVLINK_ATTR_SELFTESTS] = { .type = NLA_NESTED }, |
cd502236 | 9258 | [DEVLINK_ATTR_RATE_TX_PRIORITY] = { .type = NLA_U32 }, |
6e2d7e84 | 9259 | [DEVLINK_ATTR_RATE_TX_WEIGHT] = { .type = NLA_U32 }, |
bfcd3a46 JP |
9260 | }; |
9261 | ||
66a9b928 | 9262 | static const struct genl_small_ops devlink_nl_ops[] = { |
bfcd3a46 JP |
9263 | { |
9264 | .cmd = DEVLINK_CMD_GET, | |
ef6243ac | 9265 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bfcd3a46 JP |
9266 | .doit = devlink_nl_cmd_get_doit, |
9267 | .dumpit = devlink_nl_cmd_get_dumpit, | |
bfcd3a46 JP |
9268 | /* can be retrieved by unprivileged users */ |
9269 | }, | |
9270 | { | |
9271 | .cmd = DEVLINK_CMD_PORT_GET, | |
ef6243ac | 9272 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bfcd3a46 JP |
9273 | .doit = devlink_nl_cmd_port_get_doit, |
9274 | .dumpit = devlink_nl_cmd_port_get_dumpit, | |
bfcd3a46 JP |
9275 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, |
9276 | /* can be retrieved by unprivileged users */ | |
9277 | }, | |
9278 | { | |
9279 | .cmd = DEVLINK_CMD_PORT_SET, | |
ef6243ac | 9280 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bfcd3a46 | 9281 | .doit = devlink_nl_cmd_port_set_doit, |
bfcd3a46 JP |
9282 | .flags = GENL_ADMIN_PERM, |
9283 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, | |
9284 | }, | |
4677efc4 DL |
9285 | { |
9286 | .cmd = DEVLINK_CMD_RATE_GET, | |
9287 | .doit = devlink_nl_cmd_rate_get_doit, | |
9288 | .dumpit = devlink_nl_cmd_rate_get_dumpit, | |
9289 | .internal_flags = DEVLINK_NL_FLAG_NEED_RATE, | |
9290 | /* can be retrieved by unprivileged users */ | |
9291 | }, | |
1897db2e DL |
9292 | { |
9293 | .cmd = DEVLINK_CMD_RATE_SET, | |
9294 | .doit = devlink_nl_cmd_rate_set_doit, | |
9295 | .flags = GENL_ADMIN_PERM, | |
9296 | .internal_flags = DEVLINK_NL_FLAG_NEED_RATE, | |
9297 | }, | |
a8ecb93e DL |
9298 | { |
9299 | .cmd = DEVLINK_CMD_RATE_NEW, | |
9300 | .doit = devlink_nl_cmd_rate_new_doit, | |
9301 | .flags = GENL_ADMIN_PERM, | |
9302 | }, | |
9303 | { | |
9304 | .cmd = DEVLINK_CMD_RATE_DEL, | |
9305 | .doit = devlink_nl_cmd_rate_del_doit, | |
9306 | .flags = GENL_ADMIN_PERM, | |
9307 | .internal_flags = DEVLINK_NL_FLAG_NEED_RATE_NODE, | |
9308 | }, | |
bfcd3a46 JP |
9309 | { |
9310 | .cmd = DEVLINK_CMD_PORT_SPLIT, | |
ef6243ac | 9311 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bfcd3a46 | 9312 | .doit = devlink_nl_cmd_port_split_doit, |
bfcd3a46 | 9313 | .flags = GENL_ADMIN_PERM, |
706217c1 | 9314 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, |
bfcd3a46 JP |
9315 | }, |
9316 | { | |
9317 | .cmd = DEVLINK_CMD_PORT_UNSPLIT, | |
ef6243ac | 9318 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bfcd3a46 | 9319 | .doit = devlink_nl_cmd_port_unsplit_doit, |
bfcd3a46 | 9320 | .flags = GENL_ADMIN_PERM, |
706217c1 | 9321 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, |
bfcd3a46 | 9322 | }, |
cd76dcd6 PP |
9323 | { |
9324 | .cmd = DEVLINK_CMD_PORT_NEW, | |
9325 | .doit = devlink_nl_cmd_port_new_doit, | |
9326 | .flags = GENL_ADMIN_PERM, | |
cd76dcd6 PP |
9327 | }, |
9328 | { | |
9329 | .cmd = DEVLINK_CMD_PORT_DEL, | |
9330 | .doit = devlink_nl_cmd_port_del_doit, | |
9331 | .flags = GENL_ADMIN_PERM, | |
cd76dcd6 | 9332 | }, |
c246f9b5 JP |
9333 | { |
9334 | .cmd = DEVLINK_CMD_LINECARD_GET, | |
9335 | .doit = devlink_nl_cmd_linecard_get_doit, | |
9336 | .dumpit = devlink_nl_cmd_linecard_get_dumpit, | |
9337 | .internal_flags = DEVLINK_NL_FLAG_NEED_LINECARD, | |
9338 | /* can be retrieved by unprivileged users */ | |
9339 | }, | |
fcdc8ce2 JP |
9340 | { |
9341 | .cmd = DEVLINK_CMD_LINECARD_SET, | |
9342 | .doit = devlink_nl_cmd_linecard_set_doit, | |
9343 | .flags = GENL_ADMIN_PERM, | |
9344 | .internal_flags = DEVLINK_NL_FLAG_NEED_LINECARD, | |
9345 | }, | |
bf797471 JP |
9346 | { |
9347 | .cmd = DEVLINK_CMD_SB_GET, | |
ef6243ac | 9348 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bf797471 JP |
9349 | .doit = devlink_nl_cmd_sb_get_doit, |
9350 | .dumpit = devlink_nl_cmd_sb_get_dumpit, | |
bf797471 JP |
9351 | /* can be retrieved by unprivileged users */ |
9352 | }, | |
9353 | { | |
9354 | .cmd = DEVLINK_CMD_SB_POOL_GET, | |
ef6243ac | 9355 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bf797471 JP |
9356 | .doit = devlink_nl_cmd_sb_pool_get_doit, |
9357 | .dumpit = devlink_nl_cmd_sb_pool_get_dumpit, | |
bf797471 JP |
9358 | /* can be retrieved by unprivileged users */ |
9359 | }, | |
9360 | { | |
9361 | .cmd = DEVLINK_CMD_SB_POOL_SET, | |
ef6243ac | 9362 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bf797471 | 9363 | .doit = devlink_nl_cmd_sb_pool_set_doit, |
bf797471 | 9364 | .flags = GENL_ADMIN_PERM, |
bf797471 JP |
9365 | }, |
9366 | { | |
9367 | .cmd = DEVLINK_CMD_SB_PORT_POOL_GET, | |
ef6243ac | 9368 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bf797471 JP |
9369 | .doit = devlink_nl_cmd_sb_port_pool_get_doit, |
9370 | .dumpit = devlink_nl_cmd_sb_port_pool_get_dumpit, | |
637989b5 | 9371 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, |
bf797471 JP |
9372 | /* can be retrieved by unprivileged users */ |
9373 | }, | |
9374 | { | |
9375 | .cmd = DEVLINK_CMD_SB_PORT_POOL_SET, | |
ef6243ac | 9376 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bf797471 | 9377 | .doit = devlink_nl_cmd_sb_port_pool_set_doit, |
bf797471 | 9378 | .flags = GENL_ADMIN_PERM, |
637989b5 | 9379 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, |
bf797471 JP |
9380 | }, |
9381 | { | |
9382 | .cmd = DEVLINK_CMD_SB_TC_POOL_BIND_GET, | |
ef6243ac | 9383 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bf797471 JP |
9384 | .doit = devlink_nl_cmd_sb_tc_pool_bind_get_doit, |
9385 | .dumpit = devlink_nl_cmd_sb_tc_pool_bind_get_dumpit, | |
637989b5 | 9386 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, |
bf797471 JP |
9387 | /* can be retrieved by unprivileged users */ |
9388 | }, | |
9389 | { | |
9390 | .cmd = DEVLINK_CMD_SB_TC_POOL_BIND_SET, | |
ef6243ac | 9391 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bf797471 | 9392 | .doit = devlink_nl_cmd_sb_tc_pool_bind_set_doit, |
bf797471 | 9393 | .flags = GENL_ADMIN_PERM, |
637989b5 | 9394 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, |
bf797471 | 9395 | }, |
df38dafd JP |
9396 | { |
9397 | .cmd = DEVLINK_CMD_SB_OCC_SNAPSHOT, | |
ef6243ac | 9398 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
df38dafd | 9399 | .doit = devlink_nl_cmd_sb_occ_snapshot_doit, |
df38dafd | 9400 | .flags = GENL_ADMIN_PERM, |
df38dafd JP |
9401 | }, |
9402 | { | |
9403 | .cmd = DEVLINK_CMD_SB_OCC_MAX_CLEAR, | |
ef6243ac | 9404 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
df38dafd | 9405 | .doit = devlink_nl_cmd_sb_occ_max_clear_doit, |
df38dafd | 9406 | .flags = GENL_ADMIN_PERM, |
df38dafd | 9407 | }, |
08f4b591 | 9408 | { |
adf200f3 | 9409 | .cmd = DEVLINK_CMD_ESWITCH_GET, |
ef6243ac | 9410 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
adf200f3 | 9411 | .doit = devlink_nl_cmd_eswitch_get_doit, |
08f4b591 | 9412 | .flags = GENL_ADMIN_PERM, |
08f4b591 OG |
9413 | }, |
9414 | { | |
adf200f3 | 9415 | .cmd = DEVLINK_CMD_ESWITCH_SET, |
ef6243ac | 9416 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
adf200f3 | 9417 | .doit = devlink_nl_cmd_eswitch_set_doit, |
08f4b591 | 9418 | .flags = GENL_ADMIN_PERM, |
08f4b591 | 9419 | }, |
1555d204 AS |
9420 | { |
9421 | .cmd = DEVLINK_CMD_DPIPE_TABLE_GET, | |
ef6243ac | 9422 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
1555d204 | 9423 | .doit = devlink_nl_cmd_dpipe_table_get, |
67ae686b | 9424 | /* can be retrieved by unprivileged users */ |
1555d204 AS |
9425 | }, |
9426 | { | |
9427 | .cmd = DEVLINK_CMD_DPIPE_ENTRIES_GET, | |
ef6243ac | 9428 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
1555d204 | 9429 | .doit = devlink_nl_cmd_dpipe_entries_get, |
67ae686b | 9430 | /* can be retrieved by unprivileged users */ |
1555d204 AS |
9431 | }, |
9432 | { | |
9433 | .cmd = DEVLINK_CMD_DPIPE_HEADERS_GET, | |
ef6243ac | 9434 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
1555d204 | 9435 | .doit = devlink_nl_cmd_dpipe_headers_get, |
67ae686b | 9436 | /* can be retrieved by unprivileged users */ |
1555d204 AS |
9437 | }, |
9438 | { | |
9439 | .cmd = DEVLINK_CMD_DPIPE_TABLE_COUNTERS_SET, | |
ef6243ac | 9440 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
1555d204 | 9441 | .doit = devlink_nl_cmd_dpipe_table_counters_set, |
1555d204 | 9442 | .flags = GENL_ADMIN_PERM, |
1555d204 | 9443 | }, |
d9f9b9a4 AS |
9444 | { |
9445 | .cmd = DEVLINK_CMD_RESOURCE_SET, | |
ef6243ac | 9446 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
d9f9b9a4 | 9447 | .doit = devlink_nl_cmd_resource_set, |
d9f9b9a4 | 9448 | .flags = GENL_ADMIN_PERM, |
d9f9b9a4 AS |
9449 | }, |
9450 | { | |
9451 | .cmd = DEVLINK_CMD_RESOURCE_DUMP, | |
ef6243ac | 9452 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
d9f9b9a4 | 9453 | .doit = devlink_nl_cmd_resource_dump, |
67ae686b | 9454 | /* can be retrieved by unprivileged users */ |
d9f9b9a4 | 9455 | }, |
2d8dc5bb AS |
9456 | { |
9457 | .cmd = DEVLINK_CMD_RELOAD, | |
ef6243ac | 9458 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
2d8dc5bb | 9459 | .doit = devlink_nl_cmd_reload, |
2d8dc5bb | 9460 | .flags = GENL_ADMIN_PERM, |
2d8dc5bb | 9461 | }, |
45f05def MS |
9462 | { |
9463 | .cmd = DEVLINK_CMD_PARAM_GET, | |
ef6243ac | 9464 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
45f05def MS |
9465 | .doit = devlink_nl_cmd_param_get_doit, |
9466 | .dumpit = devlink_nl_cmd_param_get_dumpit, | |
45f05def MS |
9467 | /* can be retrieved by unprivileged users */ |
9468 | }, | |
e3b7ca18 MS |
9469 | { |
9470 | .cmd = DEVLINK_CMD_PARAM_SET, | |
ef6243ac | 9471 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
e3b7ca18 | 9472 | .doit = devlink_nl_cmd_param_set_doit, |
e3b7ca18 | 9473 | .flags = GENL_ADMIN_PERM, |
e3b7ca18 | 9474 | }, |
f4601dee VV |
9475 | { |
9476 | .cmd = DEVLINK_CMD_PORT_PARAM_GET, | |
ef6243ac | 9477 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
f4601dee VV |
9478 | .doit = devlink_nl_cmd_port_param_get_doit, |
9479 | .dumpit = devlink_nl_cmd_port_param_get_dumpit, | |
f4601dee VV |
9480 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, |
9481 | /* can be retrieved by unprivileged users */ | |
9482 | }, | |
9c54873b VV |
9483 | { |
9484 | .cmd = DEVLINK_CMD_PORT_PARAM_SET, | |
ef6243ac | 9485 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
9c54873b | 9486 | .doit = devlink_nl_cmd_port_param_set_doit, |
9c54873b VV |
9487 | .flags = GENL_ADMIN_PERM, |
9488 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, | |
9489 | }, | |
d8db7ea5 AV |
9490 | { |
9491 | .cmd = DEVLINK_CMD_REGION_GET, | |
ef6243ac | 9492 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
d8db7ea5 AV |
9493 | .doit = devlink_nl_cmd_region_get_doit, |
9494 | .dumpit = devlink_nl_cmd_region_get_dumpit, | |
d8db7ea5 | 9495 | .flags = GENL_ADMIN_PERM, |
d8db7ea5 | 9496 | }, |
b9a17abf JK |
9497 | { |
9498 | .cmd = DEVLINK_CMD_REGION_NEW, | |
9499 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, | |
9500 | .doit = devlink_nl_cmd_region_new, | |
9501 | .flags = GENL_ADMIN_PERM, | |
b9a17abf | 9502 | }, |
866319bb AV |
9503 | { |
9504 | .cmd = DEVLINK_CMD_REGION_DEL, | |
ef6243ac | 9505 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
866319bb | 9506 | .doit = devlink_nl_cmd_region_del, |
866319bb | 9507 | .flags = GENL_ADMIN_PERM, |
866319bb | 9508 | }, |
4e54795a AV |
9509 | { |
9510 | .cmd = DEVLINK_CMD_REGION_READ, | |
ee85da53 JP |
9511 | .validate = GENL_DONT_VALIDATE_STRICT | |
9512 | GENL_DONT_VALIDATE_DUMP_STRICT, | |
4e54795a | 9513 | .dumpit = devlink_nl_cmd_region_read_dumpit, |
4e54795a | 9514 | .flags = GENL_ADMIN_PERM, |
4e54795a | 9515 | }, |
f9cf2288 JK |
9516 | { |
9517 | .cmd = DEVLINK_CMD_INFO_GET, | |
ef6243ac | 9518 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
f9cf2288 JK |
9519 | .doit = devlink_nl_cmd_info_get_doit, |
9520 | .dumpit = devlink_nl_cmd_info_get_dumpit, | |
f9cf2288 JK |
9521 | /* can be retrieved by unprivileged users */ |
9522 | }, | |
7afe335a EBE |
9523 | { |
9524 | .cmd = DEVLINK_CMD_HEALTH_REPORTER_GET, | |
ef6243ac | 9525 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
7afe335a EBE |
9526 | .doit = devlink_nl_cmd_health_reporter_get_doit, |
9527 | .dumpit = devlink_nl_cmd_health_reporter_get_dumpit, | |
c90005b5 | 9528 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT, |
7afe335a EBE |
9529 | /* can be retrieved by unprivileged users */ |
9530 | }, | |
a1e55ec0 EBE |
9531 | { |
9532 | .cmd = DEVLINK_CMD_HEALTH_REPORTER_SET, | |
ef6243ac | 9533 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
a1e55ec0 | 9534 | .doit = devlink_nl_cmd_health_reporter_set_doit, |
a1e55ec0 | 9535 | .flags = GENL_ADMIN_PERM, |
c90005b5 | 9536 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT, |
a1e55ec0 | 9537 | }, |
20a0943a EBE |
9538 | { |
9539 | .cmd = DEVLINK_CMD_HEALTH_REPORTER_RECOVER, | |
ef6243ac | 9540 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
20a0943a | 9541 | .doit = devlink_nl_cmd_health_reporter_recover_doit, |
20a0943a | 9542 | .flags = GENL_ADMIN_PERM, |
c90005b5 | 9543 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT, |
20a0943a | 9544 | }, |
fca42a27 EBE |
9545 | { |
9546 | .cmd = DEVLINK_CMD_HEALTH_REPORTER_DIAGNOSE, | |
ef6243ac | 9547 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
fca42a27 | 9548 | .doit = devlink_nl_cmd_health_reporter_diagnose_doit, |
fca42a27 | 9549 | .flags = GENL_ADMIN_PERM, |
c90005b5 | 9550 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT, |
fca42a27 | 9551 | }, |
35455e23 EBE |
9552 | { |
9553 | .cmd = DEVLINK_CMD_HEALTH_REPORTER_DUMP_GET, | |
82a843de JP |
9554 | .validate = GENL_DONT_VALIDATE_STRICT | |
9555 | GENL_DONT_VALIDATE_DUMP_STRICT, | |
e44ef4e4 | 9556 | .dumpit = devlink_nl_cmd_health_reporter_dump_get_dumpit, |
35455e23 | 9557 | .flags = GENL_ADMIN_PERM, |
35455e23 EBE |
9558 | }, |
9559 | { | |
9560 | .cmd = DEVLINK_CMD_HEALTH_REPORTER_DUMP_CLEAR, | |
ef6243ac | 9561 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
35455e23 | 9562 | .doit = devlink_nl_cmd_health_reporter_dump_clear_doit, |
35455e23 | 9563 | .flags = GENL_ADMIN_PERM, |
c90005b5 | 9564 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT, |
35455e23 | 9565 | }, |
e2ce94dc JP |
9566 | { |
9567 | .cmd = DEVLINK_CMD_HEALTH_REPORTER_TEST, | |
9568 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, | |
9569 | .doit = devlink_nl_cmd_health_reporter_test_doit, | |
9570 | .flags = GENL_ADMIN_PERM, | |
c90005b5 | 9571 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT, |
e2ce94dc | 9572 | }, |
76726ccb JK |
9573 | { |
9574 | .cmd = DEVLINK_CMD_FLASH_UPDATE, | |
ef6243ac | 9575 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
76726ccb | 9576 | .doit = devlink_nl_cmd_flash_update, |
76726ccb | 9577 | .flags = GENL_ADMIN_PERM, |
76726ccb | 9578 | }, |
0f420b6c IS |
9579 | { |
9580 | .cmd = DEVLINK_CMD_TRAP_GET, | |
9581 | .doit = devlink_nl_cmd_trap_get_doit, | |
9582 | .dumpit = devlink_nl_cmd_trap_get_dumpit, | |
0f420b6c IS |
9583 | /* can be retrieved by unprivileged users */ |
9584 | }, | |
9585 | { | |
9586 | .cmd = DEVLINK_CMD_TRAP_SET, | |
9587 | .doit = devlink_nl_cmd_trap_set_doit, | |
9588 | .flags = GENL_ADMIN_PERM, | |
0f420b6c IS |
9589 | }, |
9590 | { | |
9591 | .cmd = DEVLINK_CMD_TRAP_GROUP_GET, | |
9592 | .doit = devlink_nl_cmd_trap_group_get_doit, | |
9593 | .dumpit = devlink_nl_cmd_trap_group_get_dumpit, | |
0f420b6c IS |
9594 | /* can be retrieved by unprivileged users */ |
9595 | }, | |
9596 | { | |
9597 | .cmd = DEVLINK_CMD_TRAP_GROUP_SET, | |
9598 | .doit = devlink_nl_cmd_trap_group_set_doit, | |
9599 | .flags = GENL_ADMIN_PERM, | |
0f420b6c | 9600 | }, |
1e8c6619 IS |
9601 | { |
9602 | .cmd = DEVLINK_CMD_TRAP_POLICER_GET, | |
9603 | .doit = devlink_nl_cmd_trap_policer_get_doit, | |
9604 | .dumpit = devlink_nl_cmd_trap_policer_get_dumpit, | |
1e8c6619 IS |
9605 | /* can be retrieved by unprivileged users */ |
9606 | }, | |
9607 | { | |
9608 | .cmd = DEVLINK_CMD_TRAP_POLICER_SET, | |
9609 | .doit = devlink_nl_cmd_trap_policer_set_doit, | |
9610 | .flags = GENL_ADMIN_PERM, | |
1e8c6619 | 9611 | }, |
08f588fa VG |
9612 | { |
9613 | .cmd = DEVLINK_CMD_SELFTESTS_GET, | |
9614 | .doit = devlink_nl_cmd_selftests_get_doit, | |
9615 | .dumpit = devlink_nl_cmd_selftests_get_dumpit | |
9616 | /* can be retrieved by unprivileged users */ | |
9617 | }, | |
9618 | { | |
9619 | .cmd = DEVLINK_CMD_SELFTESTS_RUN, | |
9620 | .doit = devlink_nl_cmd_selftests_run, | |
9621 | .flags = GENL_ADMIN_PERM, | |
9622 | }, | |
bfcd3a46 JP |
9623 | }; |
9624 | ||
56989f6d | 9625 | static struct genl_family devlink_nl_family __ro_after_init = { |
489111e5 JB |
9626 | .name = DEVLINK_GENL_NAME, |
9627 | .version = DEVLINK_GENL_VERSION, | |
9628 | .maxattr = DEVLINK_ATTR_MAX, | |
3b0f31f2 | 9629 | .policy = devlink_nl_policy, |
489111e5 | 9630 | .netnsok = true, |
09b27846 | 9631 | .parallel_ops = true, |
489111e5 JB |
9632 | .pre_doit = devlink_nl_pre_doit, |
9633 | .post_doit = devlink_nl_post_doit, | |
9634 | .module = THIS_MODULE, | |
66a9b928 JK |
9635 | .small_ops = devlink_nl_ops, |
9636 | .n_small_ops = ARRAY_SIZE(devlink_nl_ops), | |
9c5d03d3 | 9637 | .resv_start_op = DEVLINK_CMD_SELFTESTS_RUN + 1, |
489111e5 JB |
9638 | .mcgrps = devlink_nl_mcgrps, |
9639 | .n_mcgrps = ARRAY_SIZE(devlink_nl_mcgrps), | |
9640 | }; | |
9641 | ||
ccdf0721 MS |
9642 | static bool devlink_reload_actions_valid(const struct devlink_ops *ops) |
9643 | { | |
dc64cc7c MS |
9644 | const struct devlink_reload_combination *comb; |
9645 | int i; | |
9646 | ||
ccdf0721 MS |
9647 | if (!devlink_reload_supported(ops)) { |
9648 | if (WARN_ON(ops->reload_actions)) | |
9649 | return false; | |
9650 | return true; | |
9651 | } | |
9652 | ||
9653 | if (WARN_ON(!ops->reload_actions || | |
9654 | ops->reload_actions & BIT(DEVLINK_RELOAD_ACTION_UNSPEC) || | |
9655 | ops->reload_actions >= BIT(__DEVLINK_RELOAD_ACTION_MAX))) | |
9656 | return false; | |
dc64cc7c MS |
9657 | |
9658 | if (WARN_ON(ops->reload_limits & BIT(DEVLINK_RELOAD_LIMIT_UNSPEC) || | |
9659 | ops->reload_limits >= BIT(__DEVLINK_RELOAD_LIMIT_MAX))) | |
9660 | return false; | |
9661 | ||
9662 | for (i = 0; i < ARRAY_SIZE(devlink_reload_invalid_combinations); i++) { | |
9663 | comb = &devlink_reload_invalid_combinations[i]; | |
9664 | if (ops->reload_actions == BIT(comb->action) && | |
9665 | ops->reload_limits == BIT(comb->limit)) | |
9666 | return false; | |
9667 | } | |
ccdf0721 MS |
9668 | return true; |
9669 | } | |
9670 | ||
bd032e35 LR |
9671 | /** |
9672 | * devlink_set_features - Set devlink supported features | |
9673 | * | |
9674 | * @devlink: devlink | |
9675 | * @features: devlink support features | |
9676 | * | |
9677 | * This interface allows us to set reload ops separatelly from | |
9678 | * the devlink_alloc. | |
9679 | */ | |
9680 | void devlink_set_features(struct devlink *devlink, u64 features) | |
9681 | { | |
9682 | ASSERT_DEVLINK_NOT_REGISTERED(devlink); | |
9683 | ||
9684 | WARN_ON(features & DEVLINK_F_RELOAD && | |
9685 | !devlink_reload_supported(devlink->ops)); | |
9686 | devlink->features = features; | |
9687 | } | |
9688 | EXPORT_SYMBOL_GPL(devlink_set_features); | |
9689 | ||
02a68a47 JP |
9690 | static int devlink_netdevice_event(struct notifier_block *nb, |
9691 | unsigned long event, void *ptr); | |
9692 | ||
bfcd3a46 | 9693 | /** |
26713455 LR |
9694 | * devlink_alloc_ns - Allocate new devlink instance resources |
9695 | * in specific namespace | |
bfcd3a46 JP |
9696 | * |
9697 | * @ops: ops | |
9698 | * @priv_size: size of user private data | |
26713455 | 9699 | * @net: net namespace |
919d13a7 | 9700 | * @dev: parent device |
bfcd3a46 JP |
9701 | * |
9702 | * Allocate new devlink instance resources, including devlink index | |
9703 | * and name. | |
9704 | */ | |
26713455 | 9705 | struct devlink *devlink_alloc_ns(const struct devlink_ops *ops, |
919d13a7 LR |
9706 | size_t priv_size, struct net *net, |
9707 | struct device *dev) | |
bfcd3a46 JP |
9708 | { |
9709 | struct devlink *devlink; | |
11a861d7 LR |
9710 | static u32 last_id; |
9711 | int ret; | |
bfcd3a46 | 9712 | |
919d13a7 | 9713 | WARN_ON(!ops || !dev); |
ccdf0721 MS |
9714 | if (!devlink_reload_actions_valid(ops)) |
9715 | return NULL; | |
9716 | ||
bfcd3a46 JP |
9717 | devlink = kzalloc(sizeof(*devlink) + priv_size, GFP_KERNEL); |
9718 | if (!devlink) | |
9719 | return NULL; | |
919d13a7 | 9720 | |
11a861d7 LR |
9721 | ret = xa_alloc_cyclic(&devlinks, &devlink->index, devlink, xa_limit_31b, |
9722 | &last_id, GFP_KERNEL); | |
02a68a47 JP |
9723 | if (ret < 0) |
9724 | goto err_xa_alloc; | |
9725 | ||
9726 | devlink->netdevice_nb.notifier_call = devlink_netdevice_event; | |
9727 | ret = register_netdevice_notifier_net(net, &devlink->netdevice_nb); | |
9728 | if (ret) | |
9729 | goto err_register_netdevice_notifier; | |
11a861d7 | 9730 | |
919d13a7 | 9731 | devlink->dev = dev; |
bfcd3a46 | 9732 | devlink->ops = ops; |
12102436 | 9733 | xa_init_flags(&devlink->snapshot_ids, XA_FLAGS_ALLOC); |
26713455 | 9734 | write_pnet(&devlink->_net, net); |
bfcd3a46 | 9735 | INIT_LIST_HEAD(&devlink->port_list); |
4677efc4 | 9736 | INIT_LIST_HEAD(&devlink->rate_list); |
c246f9b5 | 9737 | INIT_LIST_HEAD(&devlink->linecard_list); |
bf797471 | 9738 | INIT_LIST_HEAD(&devlink->sb_list); |
1555d204 | 9739 | INIT_LIST_HEAD_RCU(&devlink->dpipe_table_list); |
d9f9b9a4 | 9740 | INIT_LIST_HEAD(&devlink->resource_list); |
eabaef18 | 9741 | INIT_LIST_HEAD(&devlink->param_list); |
b16ebe92 | 9742 | INIT_LIST_HEAD(&devlink->region_list); |
a0bdcc59 | 9743 | INIT_LIST_HEAD(&devlink->reporter_list); |
0f420b6c IS |
9744 | INIT_LIST_HEAD(&devlink->trap_list); |
9745 | INIT_LIST_HEAD(&devlink->trap_group_list); | |
1e8c6619 | 9746 | INIT_LIST_HEAD(&devlink->trap_policer_list); |
e26fde2f | 9747 | lockdep_register_key(&devlink->lock_key); |
2406e7e5 | 9748 | mutex_init(&devlink->lock); |
e26fde2f | 9749 | lockdep_set_class(&devlink->lock, &devlink->lock_key); |
b587bdaf | 9750 | mutex_init(&devlink->reporters_lock); |
c246f9b5 | 9751 | mutex_init(&devlink->linecards_lock); |
437ebfd9 LR |
9752 | refcount_set(&devlink->refcount, 1); |
9753 | init_completion(&devlink->comp); | |
9754 | ||
bfcd3a46 | 9755 | return devlink; |
02a68a47 JP |
9756 | |
9757 | err_register_netdevice_notifier: | |
9758 | xa_erase(&devlinks, devlink->index); | |
9759 | err_xa_alloc: | |
9760 | kfree(devlink); | |
9761 | return NULL; | |
bfcd3a46 | 9762 | } |
26713455 | 9763 | EXPORT_SYMBOL_GPL(devlink_alloc_ns); |
bfcd3a46 | 9764 | |
cf530217 LR |
9765 | static void |
9766 | devlink_trap_policer_notify(struct devlink *devlink, | |
9767 | const struct devlink_trap_policer_item *policer_item, | |
9768 | enum devlink_command cmd); | |
9769 | static void | |
9770 | devlink_trap_group_notify(struct devlink *devlink, | |
9771 | const struct devlink_trap_group_item *group_item, | |
9772 | enum devlink_command cmd); | |
9773 | static void devlink_trap_notify(struct devlink *devlink, | |
9774 | const struct devlink_trap_item *trap_item, | |
9775 | enum devlink_command cmd); | |
9776 | ||
9777 | static void devlink_notify_register(struct devlink *devlink) | |
9778 | { | |
9779 | struct devlink_trap_policer_item *policer_item; | |
9780 | struct devlink_trap_group_item *group_item; | |
99ad92ef | 9781 | struct devlink_param_item *param_item; |
cf530217 LR |
9782 | struct devlink_trap_item *trap_item; |
9783 | struct devlink_port *devlink_port; | |
c246f9b5 | 9784 | struct devlink_linecard *linecard; |
ef91abfb LR |
9785 | struct devlink_rate *rate_node; |
9786 | struct devlink_region *region; | |
cf530217 LR |
9787 | |
9788 | devlink_notify(devlink, DEVLINK_CMD_NEW); | |
c246f9b5 JP |
9789 | list_for_each_entry(linecard, &devlink->linecard_list, list) |
9790 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
9791 | ||
cf530217 LR |
9792 | list_for_each_entry(devlink_port, &devlink->port_list, list) |
9793 | devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_NEW); | |
9794 | ||
9795 | list_for_each_entry(policer_item, &devlink->trap_policer_list, list) | |
9796 | devlink_trap_policer_notify(devlink, policer_item, | |
9797 | DEVLINK_CMD_TRAP_POLICER_NEW); | |
9798 | ||
9799 | list_for_each_entry(group_item, &devlink->trap_group_list, list) | |
9800 | devlink_trap_group_notify(devlink, group_item, | |
9801 | DEVLINK_CMD_TRAP_GROUP_NEW); | |
9802 | ||
9803 | list_for_each_entry(trap_item, &devlink->trap_list, list) | |
9804 | devlink_trap_notify(devlink, trap_item, DEVLINK_CMD_TRAP_NEW); | |
9805 | ||
ef91abfb LR |
9806 | list_for_each_entry(rate_node, &devlink->rate_list, list) |
9807 | devlink_rate_notify(rate_node, DEVLINK_CMD_RATE_NEW); | |
9808 | ||
9809 | list_for_each_entry(region, &devlink->region_list, list) | |
9810 | devlink_nl_region_notify(region, NULL, DEVLINK_CMD_REGION_NEW); | |
9811 | ||
99ad92ef LR |
9812 | list_for_each_entry(param_item, &devlink->param_list, list) |
9813 | devlink_param_notify(devlink, 0, param_item, | |
9814 | DEVLINK_CMD_PARAM_NEW); | |
cf530217 LR |
9815 | } |
9816 | ||
9817 | static void devlink_notify_unregister(struct devlink *devlink) | |
9818 | { | |
9819 | struct devlink_trap_policer_item *policer_item; | |
9820 | struct devlink_trap_group_item *group_item; | |
99ad92ef | 9821 | struct devlink_param_item *param_item; |
cf530217 LR |
9822 | struct devlink_trap_item *trap_item; |
9823 | struct devlink_port *devlink_port; | |
ef91abfb LR |
9824 | struct devlink_rate *rate_node; |
9825 | struct devlink_region *region; | |
cf530217 | 9826 | |
99ad92ef LR |
9827 | list_for_each_entry_reverse(param_item, &devlink->param_list, list) |
9828 | devlink_param_notify(devlink, 0, param_item, | |
9829 | DEVLINK_CMD_PARAM_DEL); | |
cf530217 | 9830 | |
ef91abfb LR |
9831 | list_for_each_entry_reverse(region, &devlink->region_list, list) |
9832 | devlink_nl_region_notify(region, NULL, DEVLINK_CMD_REGION_DEL); | |
9833 | ||
9834 | list_for_each_entry_reverse(rate_node, &devlink->rate_list, list) | |
9835 | devlink_rate_notify(rate_node, DEVLINK_CMD_RATE_DEL); | |
9836 | ||
cf530217 LR |
9837 | list_for_each_entry_reverse(trap_item, &devlink->trap_list, list) |
9838 | devlink_trap_notify(devlink, trap_item, DEVLINK_CMD_TRAP_DEL); | |
9839 | ||
9840 | list_for_each_entry_reverse(group_item, &devlink->trap_group_list, list) | |
9841 | devlink_trap_group_notify(devlink, group_item, | |
9842 | DEVLINK_CMD_TRAP_GROUP_DEL); | |
9843 | list_for_each_entry_reverse(policer_item, &devlink->trap_policer_list, | |
9844 | list) | |
9845 | devlink_trap_policer_notify(devlink, policer_item, | |
9846 | DEVLINK_CMD_TRAP_POLICER_DEL); | |
9847 | ||
9848 | list_for_each_entry_reverse(devlink_port, &devlink->port_list, list) | |
9849 | devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_DEL); | |
9850 | devlink_notify(devlink, DEVLINK_CMD_DEL); | |
9851 | } | |
9852 | ||
bfcd3a46 JP |
9853 | /** |
9854 | * devlink_register - Register devlink instance | |
9855 | * | |
9856 | * @devlink: devlink | |
9857 | */ | |
db4278c5 | 9858 | void devlink_register(struct devlink *devlink) |
bfcd3a46 | 9859 | { |
b88f7b12 LR |
9860 | ASSERT_DEVLINK_NOT_REGISTERED(devlink); |
9861 | /* Make sure that we are in .probe() routine */ | |
b88f7b12 | 9862 | |
11a861d7 | 9863 | xa_set_mark(&devlinks, devlink->index, DEVLINK_REGISTERED); |
cf530217 | 9864 | devlink_notify_register(devlink); |
bfcd3a46 JP |
9865 | } |
9866 | EXPORT_SYMBOL_GPL(devlink_register); | |
9867 | ||
9868 | /** | |
9869 | * devlink_unregister - Unregister devlink instance | |
9870 | * | |
9871 | * @devlink: devlink | |
9872 | */ | |
9873 | void devlink_unregister(struct devlink *devlink) | |
9874 | { | |
b88f7b12 LR |
9875 | ASSERT_DEVLINK_REGISTERED(devlink); |
9876 | /* Make sure that we are in .remove() routine */ | |
b88f7b12 | 9877 | |
c2368b19 | 9878 | xa_set_mark(&devlinks, devlink->index, DEVLINK_UNREGISTERING); |
437ebfd9 LR |
9879 | devlink_put(devlink); |
9880 | wait_for_completion(&devlink->comp); | |
9881 | ||
cf530217 | 9882 | devlink_notify_unregister(devlink); |
11a861d7 | 9883 | xa_clear_mark(&devlinks, devlink->index, DEVLINK_REGISTERED); |
c2368b19 | 9884 | xa_clear_mark(&devlinks, devlink->index, DEVLINK_UNREGISTERING); |
bfcd3a46 JP |
9885 | } |
9886 | EXPORT_SYMBOL_GPL(devlink_unregister); | |
9887 | ||
9888 | /** | |
9889 | * devlink_free - Free devlink instance resources | |
9890 | * | |
9891 | * @devlink: devlink | |
9892 | */ | |
9893 | void devlink_free(struct devlink *devlink) | |
9894 | { | |
b88f7b12 LR |
9895 | ASSERT_DEVLINK_NOT_REGISTERED(devlink); |
9896 | ||
c246f9b5 | 9897 | mutex_destroy(&devlink->linecards_lock); |
b587bdaf | 9898 | mutex_destroy(&devlink->reporters_lock); |
375cf8c6 | 9899 | mutex_destroy(&devlink->lock); |
e26fde2f | 9900 | lockdep_unregister_key(&devlink->lock_key); |
1e8c6619 | 9901 | WARN_ON(!list_empty(&devlink->trap_policer_list)); |
0f420b6c IS |
9902 | WARN_ON(!list_empty(&devlink->trap_group_list)); |
9903 | WARN_ON(!list_empty(&devlink->trap_list)); | |
b904aada PP |
9904 | WARN_ON(!list_empty(&devlink->reporter_list)); |
9905 | WARN_ON(!list_empty(&devlink->region_list)); | |
9906 | WARN_ON(!list_empty(&devlink->param_list)); | |
9907 | WARN_ON(!list_empty(&devlink->resource_list)); | |
9908 | WARN_ON(!list_empty(&devlink->dpipe_table_list)); | |
9909 | WARN_ON(!list_empty(&devlink->sb_list)); | |
4677efc4 | 9910 | WARN_ON(!list_empty(&devlink->rate_list)); |
c246f9b5 | 9911 | WARN_ON(!list_empty(&devlink->linecard_list)); |
b904aada PP |
9912 | WARN_ON(!list_empty(&devlink->port_list)); |
9913 | ||
12102436 | 9914 | xa_destroy(&devlink->snapshot_ids); |
02a68a47 | 9915 | |
7666dbec JP |
9916 | WARN_ON_ONCE(unregister_netdevice_notifier_net(devlink_net(devlink), |
9917 | &devlink->netdevice_nb)); | |
02a68a47 | 9918 | |
11a861d7 | 9919 | xa_erase(&devlinks, devlink->index); |
12102436 | 9920 | |
bfcd3a46 JP |
9921 | kfree(devlink); |
9922 | } | |
9923 | EXPORT_SYMBOL_GPL(devlink_free); | |
9924 | ||
136bf27f JP |
9925 | static void devlink_port_type_warn(struct work_struct *work) |
9926 | { | |
9927 | WARN(true, "Type was not set for devlink port."); | |
9928 | } | |
9929 | ||
9930 | static bool devlink_port_type_should_warn(struct devlink_port *devlink_port) | |
9931 | { | |
9932 | /* Ignore CPU and DSA flavours. */ | |
9933 | return devlink_port->attrs.flavour != DEVLINK_PORT_FLAVOUR_CPU && | |
cf116634 AL |
9934 | devlink_port->attrs.flavour != DEVLINK_PORT_FLAVOUR_DSA && |
9935 | devlink_port->attrs.flavour != DEVLINK_PORT_FLAVOUR_UNUSED; | |
136bf27f JP |
9936 | } |
9937 | ||
4c582234 | 9938 | #define DEVLINK_PORT_TYPE_WARN_TIMEOUT (HZ * 3600) |
136bf27f JP |
9939 | |
9940 | static void devlink_port_type_warn_schedule(struct devlink_port *devlink_port) | |
9941 | { | |
9942 | if (!devlink_port_type_should_warn(devlink_port)) | |
9943 | return; | |
9944 | /* Schedule a work to WARN in case driver does not set port | |
9945 | * type within timeout. | |
9946 | */ | |
9947 | schedule_delayed_work(&devlink_port->type_warn_dw, | |
9948 | DEVLINK_PORT_TYPE_WARN_TIMEOUT); | |
9949 | } | |
9950 | ||
9951 | static void devlink_port_type_warn_cancel(struct devlink_port *devlink_port) | |
9952 | { | |
9953 | if (!devlink_port_type_should_warn(devlink_port)) | |
9954 | return; | |
9955 | cancel_delayed_work_sync(&devlink_port->type_warn_dw); | |
9956 | } | |
9957 | ||
ae3bbc04 JP |
9958 | /** |
9959 | * devlink_port_init() - Init devlink port | |
9960 | * | |
9961 | * @devlink: devlink | |
9962 | * @devlink_port: devlink port | |
9963 | * | |
9964 | * Initialize essencial stuff that is needed for functions | |
9965 | * that may be called before devlink port registration. | |
9966 | * Call to this function is optional and not needed | |
9967 | * in case the driver does not use such functions. | |
9968 | */ | |
9969 | void devlink_port_init(struct devlink *devlink, | |
9970 | struct devlink_port *devlink_port) | |
9971 | { | |
9972 | if (devlink_port->initialized) | |
9973 | return; | |
9974 | devlink_port->devlink = devlink; | |
9975 | INIT_LIST_HEAD(&devlink_port->region_list); | |
9976 | devlink_port->initialized = true; | |
9977 | } | |
9978 | EXPORT_SYMBOL_GPL(devlink_port_init); | |
9979 | ||
9980 | /** | |
9981 | * devlink_port_fini() - Deinitialize devlink port | |
9982 | * | |
9983 | * @devlink_port: devlink port | |
9984 | * | |
9985 | * Deinitialize essencial stuff that is in use for functions | |
9986 | * that may be called after devlink port unregistration. | |
9987 | * Call to this function is optional and not needed | |
9988 | * in case the driver does not use such functions. | |
9989 | */ | |
9990 | void devlink_port_fini(struct devlink_port *devlink_port) | |
9991 | { | |
9992 | WARN_ON(!list_empty(&devlink_port->region_list)); | |
9993 | } | |
9994 | EXPORT_SYMBOL_GPL(devlink_port_fini); | |
9995 | ||
1abfb265 JP |
9996 | /** |
9997 | * devl_port_register() - Register devlink port | |
9998 | * | |
9999 | * @devlink: devlink | |
10000 | * @devlink_port: devlink port | |
10001 | * @port_index: driver-specific numerical identifier of the port | |
10002 | * | |
10003 | * Register devlink port with provided port index. User can use | |
10004 | * any indexing, even hw-related one. devlink_port structure | |
10005 | * is convenient to be embedded inside user driver private structure. | |
10006 | * Note that the caller should take care of zeroing the devlink_port | |
10007 | * structure. | |
10008 | */ | |
2cb7b489 JK |
10009 | int devl_port_register(struct devlink *devlink, |
10010 | struct devlink_port *devlink_port, | |
10011 | unsigned int port_index) | |
10012 | { | |
7715023a | 10013 | devl_assert_locked(devlink); |
2cb7b489 JK |
10014 | |
10015 | if (devlink_port_index_exists(devlink, port_index)) | |
10016 | return -EEXIST; | |
10017 | ||
3fcb698d JP |
10018 | ASSERT_DEVLINK_PORT_NOT_REGISTERED(devlink_port); |
10019 | ||
ae3bbc04 | 10020 | devlink_port_init(devlink, devlink_port); |
081adcfe | 10021 | devlink_port->registered = true; |
2cb7b489 JK |
10022 | devlink_port->index = port_index; |
10023 | spin_lock_init(&devlink_port->type_lock); | |
10024 | INIT_LIST_HEAD(&devlink_port->reporter_list); | |
10025 | mutex_init(&devlink_port->reporters_lock); | |
10026 | list_add_tail(&devlink_port->list, &devlink->port_list); | |
2cb7b489 JK |
10027 | |
10028 | INIT_DELAYED_WORK(&devlink_port->type_warn_dw, &devlink_port_type_warn); | |
10029 | devlink_port_type_warn_schedule(devlink_port); | |
10030 | devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_NEW); | |
10031 | return 0; | |
10032 | } | |
10033 | EXPORT_SYMBOL_GPL(devl_port_register); | |
10034 | ||
bfcd3a46 JP |
10035 | /** |
10036 | * devlink_port_register - Register devlink port | |
10037 | * | |
10038 | * @devlink: devlink | |
10039 | * @devlink_port: devlink port | |
eeaadd82 | 10040 | * @port_index: driver-specific numerical identifier of the port |
bfcd3a46 JP |
10041 | * |
10042 | * Register devlink port with provided port index. User can use | |
10043 | * any indexing, even hw-related one. devlink_port structure | |
10044 | * is convenient to be embedded inside user driver private structure. | |
10045 | * Note that the caller should take care of zeroing the devlink_port | |
10046 | * structure. | |
1abfb265 JP |
10047 | * |
10048 | * Context: Takes and release devlink->lock <mutex>. | |
bfcd3a46 JP |
10049 | */ |
10050 | int devlink_port_register(struct devlink *devlink, | |
10051 | struct devlink_port *devlink_port, | |
10052 | unsigned int port_index) | |
10053 | { | |
2cb7b489 | 10054 | int err; |
d7907a2b | 10055 | |
7715023a | 10056 | devl_lock(devlink); |
2cb7b489 | 10057 | err = devl_port_register(devlink, devlink_port, port_index); |
7715023a | 10058 | devl_unlock(devlink); |
2cb7b489 | 10059 | return err; |
bfcd3a46 JP |
10060 | } |
10061 | EXPORT_SYMBOL_GPL(devlink_port_register); | |
10062 | ||
1abfb265 JP |
10063 | /** |
10064 | * devl_port_unregister() - Unregister devlink port | |
10065 | * | |
10066 | * @devlink_port: devlink port | |
10067 | */ | |
2cb7b489 JK |
10068 | void devl_port_unregister(struct devlink_port *devlink_port) |
10069 | { | |
10070 | lockdep_assert_held(&devlink_port->devlink->lock); | |
e705a621 | 10071 | WARN_ON(devlink_port->type != DEVLINK_PORT_TYPE_NOTSET); |
2cb7b489 JK |
10072 | |
10073 | devlink_port_type_warn_cancel(devlink_port); | |
10074 | devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_DEL); | |
10075 | list_del(&devlink_port->list); | |
10076 | WARN_ON(!list_empty(&devlink_port->reporter_list)); | |
2cb7b489 | 10077 | mutex_destroy(&devlink_port->reporters_lock); |
081adcfe | 10078 | devlink_port->registered = false; |
2cb7b489 JK |
10079 | } |
10080 | EXPORT_SYMBOL_GPL(devl_port_unregister); | |
10081 | ||
bfcd3a46 JP |
10082 | /** |
10083 | * devlink_port_unregister - Unregister devlink port | |
10084 | * | |
10085 | * @devlink_port: devlink port | |
1abfb265 JP |
10086 | * |
10087 | * Context: Takes and release devlink->lock <mutex>. | |
bfcd3a46 JP |
10088 | */ |
10089 | void devlink_port_unregister(struct devlink_port *devlink_port) | |
10090 | { | |
2406e7e5 AS |
10091 | struct devlink *devlink = devlink_port->devlink; |
10092 | ||
7715023a | 10093 | devl_lock(devlink); |
2cb7b489 | 10094 | devl_port_unregister(devlink_port); |
7715023a | 10095 | devl_unlock(devlink); |
bfcd3a46 JP |
10096 | } |
10097 | EXPORT_SYMBOL_GPL(devlink_port_unregister); | |
10098 | ||
3ea87ca7 JK |
10099 | static void devlink_port_type_netdev_checks(struct devlink_port *devlink_port, |
10100 | struct net_device *netdev) | |
bfcd3a46 | 10101 | { |
119c0b57 JP |
10102 | const struct net_device_ops *ops = netdev->netdev_ops; |
10103 | ||
746364f2 JP |
10104 | /* If driver registers devlink port, it should set devlink port |
10105 | * attributes accordingly so the compat functions are called | |
10106 | * and the original ops are not used. | |
10107 | */ | |
119c0b57 | 10108 | if (ops->ndo_get_phys_port_name) { |
746364f2 JP |
10109 | /* Some drivers use the same set of ndos for netdevs |
10110 | * that have devlink_port registered and also for | |
10111 | * those who don't. Make sure that ndo_get_phys_port_name | |
10112 | * returns -EOPNOTSUPP here in case it is defined. | |
10113 | * Warn if not. | |
10114 | */ | |
746364f2 JP |
10115 | char name[IFNAMSIZ]; |
10116 | int err; | |
10117 | ||
10118 | err = ops->ndo_get_phys_port_name(netdev, name, sizeof(name)); | |
10119 | WARN_ON(err != -EOPNOTSUPP); | |
10120 | } | |
119c0b57 JP |
10121 | if (ops->ndo_get_port_parent_id) { |
10122 | /* Some drivers use the same set of ndos for netdevs | |
10123 | * that have devlink_port registered and also for | |
10124 | * those who don't. Make sure that ndo_get_port_parent_id | |
10125 | * returns -EOPNOTSUPP here in case it is defined. | |
10126 | * Warn if not. | |
10127 | */ | |
10128 | struct netdev_phys_item_id ppid; | |
10129 | int err; | |
10130 | ||
10131 | err = ops->ndo_get_port_parent_id(netdev, &ppid); | |
10132 | WARN_ON(err != -EOPNOTSUPP); | |
10133 | } | |
3ea87ca7 JK |
10134 | } |
10135 | ||
45791e0d JP |
10136 | static void __devlink_port_type_set(struct devlink_port *devlink_port, |
10137 | enum devlink_port_type type, | |
31265c1e | 10138 | void *type_dev) |
45791e0d JP |
10139 | { |
10140 | struct net_device *netdev = type_dev; | |
10141 | ||
10142 | ASSERT_DEVLINK_PORT_REGISTERED(devlink_port); | |
10143 | ||
10144 | if (type == DEVLINK_PORT_TYPE_NOTSET) { | |
10145 | devlink_port_type_warn_schedule(devlink_port); | |
10146 | } else { | |
10147 | devlink_port_type_warn_cancel(devlink_port); | |
10148 | if (type == DEVLINK_PORT_TYPE_ETH && netdev) | |
10149 | devlink_port_type_netdev_checks(devlink_port, netdev); | |
10150 | } | |
10151 | ||
10152 | spin_lock_bh(&devlink_port->type_lock); | |
10153 | devlink_port->type = type; | |
10154 | switch (type) { | |
10155 | case DEVLINK_PORT_TYPE_ETH: | |
10156 | devlink_port->type_eth.netdev = netdev; | |
31265c1e JP |
10157 | if (netdev) { |
10158 | ASSERT_RTNL(); | |
10159 | devlink_port->type_eth.ifindex = netdev->ifindex; | |
10160 | BUILD_BUG_ON(sizeof(devlink_port->type_eth.ifname) != | |
10161 | sizeof(netdev->name)); | |
10162 | strcpy(devlink_port->type_eth.ifname, netdev->name); | |
10163 | } | |
45791e0d JP |
10164 | break; |
10165 | case DEVLINK_PORT_TYPE_IB: | |
10166 | devlink_port->type_ib.ibdev = type_dev; | |
10167 | break; | |
10168 | default: | |
10169 | break; | |
10170 | } | |
10171 | spin_unlock_bh(&devlink_port->type_lock); | |
31265c1e | 10172 | devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_NEW); |
45791e0d JP |
10173 | } |
10174 | ||
3ea87ca7 JK |
10175 | /** |
10176 | * devlink_port_type_eth_set - Set port type to Ethernet | |
10177 | * | |
10178 | * @devlink_port: devlink port | |
c8096578 JP |
10179 | * |
10180 | * If driver is calling this, most likely it is doing something wrong. | |
3ea87ca7 | 10181 | */ |
c8096578 | 10182 | void devlink_port_type_eth_set(struct devlink_port *devlink_port) |
3ea87ca7 | 10183 | { |
c8096578 JP |
10184 | dev_warn(devlink_port->devlink->dev, |
10185 | "devlink port type for port %d set to Ethernet without a software interface reference, device type not supported by the kernel?\n", | |
10186 | devlink_port->index); | |
31265c1e | 10187 | __devlink_port_type_set(devlink_port, DEVLINK_PORT_TYPE_ETH, NULL); |
bfcd3a46 JP |
10188 | } |
10189 | EXPORT_SYMBOL_GPL(devlink_port_type_eth_set); | |
10190 | ||
10191 | /** | |
10192 | * devlink_port_type_ib_set - Set port type to InfiniBand | |
10193 | * | |
10194 | * @devlink_port: devlink port | |
10195 | * @ibdev: related IB device | |
10196 | */ | |
10197 | void devlink_port_type_ib_set(struct devlink_port *devlink_port, | |
10198 | struct ib_device *ibdev) | |
10199 | { | |
31265c1e | 10200 | __devlink_port_type_set(devlink_port, DEVLINK_PORT_TYPE_IB, ibdev); |
bfcd3a46 JP |
10201 | } |
10202 | EXPORT_SYMBOL_GPL(devlink_port_type_ib_set); | |
10203 | ||
10204 | /** | |
10205 | * devlink_port_type_clear - Clear port type | |
10206 | * | |
10207 | * @devlink_port: devlink port | |
c8096578 JP |
10208 | * |
10209 | * If driver is calling this for clearing Ethernet type, most likely | |
10210 | * it is doing something wrong. | |
bfcd3a46 JP |
10211 | */ |
10212 | void devlink_port_type_clear(struct devlink_port *devlink_port) | |
10213 | { | |
c8096578 JP |
10214 | if (devlink_port->type == DEVLINK_PORT_TYPE_ETH) |
10215 | dev_warn(devlink_port->devlink->dev, | |
10216 | "devlink port type for port %d cleared without a software interface reference, device type not supported by the kernel?\n", | |
10217 | devlink_port->index); | |
31265c1e | 10218 | __devlink_port_type_set(devlink_port, DEVLINK_PORT_TYPE_NOTSET, NULL); |
bfcd3a46 JP |
10219 | } |
10220 | EXPORT_SYMBOL_GPL(devlink_port_type_clear); | |
10221 | ||
02a68a47 JP |
10222 | static int devlink_netdevice_event(struct notifier_block *nb, |
10223 | unsigned long event, void *ptr) | |
10224 | { | |
10225 | struct net_device *netdev = netdev_notifier_info_to_dev(ptr); | |
10226 | struct devlink_port *devlink_port = netdev->devlink_port; | |
10227 | struct devlink *devlink; | |
10228 | ||
10229 | devlink = container_of(nb, struct devlink, netdevice_nb); | |
10230 | ||
10231 | if (!devlink_port || devlink_port->devlink != devlink) | |
10232 | return NOTIFY_OK; | |
10233 | ||
10234 | switch (event) { | |
10235 | case NETDEV_POST_INIT: | |
10236 | /* Set the type but not netdev pointer. It is going to be set | |
10237 | * later on by NETDEV_REGISTER event. Happens once during | |
10238 | * netdevice register | |
10239 | */ | |
10240 | __devlink_port_type_set(devlink_port, DEVLINK_PORT_TYPE_ETH, | |
31265c1e | 10241 | NULL); |
02a68a47 JP |
10242 | break; |
10243 | case NETDEV_REGISTER: | |
31265c1e | 10244 | case NETDEV_CHANGENAME: |
02a68a47 JP |
10245 | /* Set the netdev on top of previously set type. Note this |
10246 | * event happens also during net namespace change so here | |
10247 | * we take into account netdev pointer appearing in this | |
10248 | * namespace. | |
10249 | */ | |
1fb22ed6 | 10250 | __devlink_port_type_set(devlink_port, devlink_port->type, |
31265c1e | 10251 | netdev); |
02a68a47 JP |
10252 | break; |
10253 | case NETDEV_UNREGISTER: | |
10254 | /* Clear netdev pointer, but not the type. This event happens | |
10255 | * also during net namespace change so we need to clear | |
10256 | * pointer to netdev that is going to another net namespace. | |
10257 | */ | |
1fb22ed6 | 10258 | __devlink_port_type_set(devlink_port, devlink_port->type, |
31265c1e | 10259 | NULL); |
02a68a47 JP |
10260 | break; |
10261 | case NETDEV_PRE_UNINIT: | |
10262 | /* Clear the type and the netdev pointer. Happens one during | |
10263 | * netdevice unregister. | |
10264 | */ | |
10265 | __devlink_port_type_set(devlink_port, DEVLINK_PORT_TYPE_NOTSET, | |
31265c1e | 10266 | NULL); |
02a68a47 JP |
10267 | break; |
10268 | } | |
10269 | ||
10270 | return NOTIFY_OK; | |
10271 | } | |
10272 | ||
378ef01b | 10273 | static int __devlink_port_attrs_set(struct devlink_port *devlink_port, |
71ad8d55 | 10274 | enum devlink_port_flavour flavour) |
378ef01b PP |
10275 | { |
10276 | struct devlink_port_attrs *attrs = &devlink_port->attrs; | |
10277 | ||
10a429ba | 10278 | devlink_port->attrs_set = true; |
378ef01b | 10279 | attrs->flavour = flavour; |
71ad8d55 | 10280 | if (attrs->switch_id.id_len) { |
46737a19 | 10281 | devlink_port->switch_port = true; |
71ad8d55 DR |
10282 | if (WARN_ON(attrs->switch_id.id_len > MAX_PHYS_ITEM_ID_LEN)) |
10283 | attrs->switch_id.id_len = MAX_PHYS_ITEM_ID_LEN; | |
378ef01b | 10284 | } else { |
46737a19 | 10285 | devlink_port->switch_port = false; |
378ef01b PP |
10286 | } |
10287 | return 0; | |
10288 | } | |
10289 | ||
bfcd3a46 | 10290 | /** |
b9ffcbaf | 10291 | * devlink_port_attrs_set - Set port attributes |
bfcd3a46 JP |
10292 | * |
10293 | * @devlink_port: devlink port | |
71ad8d55 | 10294 | * @attrs: devlink port attrs |
bfcd3a46 | 10295 | */ |
b9ffcbaf | 10296 | void devlink_port_attrs_set(struct devlink_port *devlink_port, |
71ad8d55 | 10297 | struct devlink_port_attrs *attrs) |
bfcd3a46 | 10298 | { |
378ef01b | 10299 | int ret; |
b9ffcbaf | 10300 | |
3fcb698d JP |
10301 | ASSERT_DEVLINK_PORT_NOT_REGISTERED(devlink_port); |
10302 | ||
71ad8d55 DR |
10303 | devlink_port->attrs = *attrs; |
10304 | ret = __devlink_port_attrs_set(devlink_port, attrs->flavour); | |
378ef01b | 10305 | if (ret) |
45b86112 | 10306 | return; |
a0f49b54 | 10307 | WARN_ON(attrs->splittable && attrs->split); |
bfcd3a46 | 10308 | } |
b9ffcbaf | 10309 | EXPORT_SYMBOL_GPL(devlink_port_attrs_set); |
bfcd3a46 | 10310 | |
98fd2d65 PP |
10311 | /** |
10312 | * devlink_port_attrs_pci_pf_set - Set PCI PF port attributes | |
10313 | * | |
10314 | * @devlink_port: devlink port | |
3a2d9588 | 10315 | * @controller: associated controller number for the devlink port instance |
98fd2d65 | 10316 | * @pf: associated PF for the devlink port instance |
05b595e9 | 10317 | * @external: indicates if the port is for an external controller |
98fd2d65 | 10318 | */ |
3a2d9588 PP |
10319 | void devlink_port_attrs_pci_pf_set(struct devlink_port *devlink_port, u32 controller, |
10320 | u16 pf, bool external) | |
98fd2d65 PP |
10321 | { |
10322 | struct devlink_port_attrs *attrs = &devlink_port->attrs; | |
10323 | int ret; | |
10324 | ||
3fcb698d JP |
10325 | ASSERT_DEVLINK_PORT_NOT_REGISTERED(devlink_port); |
10326 | ||
98fd2d65 | 10327 | ret = __devlink_port_attrs_set(devlink_port, |
71ad8d55 | 10328 | DEVLINK_PORT_FLAVOUR_PCI_PF); |
98fd2d65 PP |
10329 | if (ret) |
10330 | return; | |
3a2d9588 | 10331 | attrs->pci_pf.controller = controller; |
98fd2d65 | 10332 | attrs->pci_pf.pf = pf; |
05b595e9 | 10333 | attrs->pci_pf.external = external; |
98fd2d65 PP |
10334 | } |
10335 | EXPORT_SYMBOL_GPL(devlink_port_attrs_pci_pf_set); | |
10336 | ||
e41b6bf3 PP |
10337 | /** |
10338 | * devlink_port_attrs_pci_vf_set - Set PCI VF port attributes | |
10339 | * | |
10340 | * @devlink_port: devlink port | |
3a2d9588 | 10341 | * @controller: associated controller number for the devlink port instance |
e41b6bf3 PP |
10342 | * @pf: associated PF for the devlink port instance |
10343 | * @vf: associated VF of a PF for the devlink port instance | |
05b595e9 | 10344 | * @external: indicates if the port is for an external controller |
e41b6bf3 | 10345 | */ |
3a2d9588 | 10346 | void devlink_port_attrs_pci_vf_set(struct devlink_port *devlink_port, u32 controller, |
05b595e9 | 10347 | u16 pf, u16 vf, bool external) |
e41b6bf3 PP |
10348 | { |
10349 | struct devlink_port_attrs *attrs = &devlink_port->attrs; | |
10350 | int ret; | |
10351 | ||
3fcb698d JP |
10352 | ASSERT_DEVLINK_PORT_NOT_REGISTERED(devlink_port); |
10353 | ||
e41b6bf3 | 10354 | ret = __devlink_port_attrs_set(devlink_port, |
71ad8d55 | 10355 | DEVLINK_PORT_FLAVOUR_PCI_VF); |
e41b6bf3 PP |
10356 | if (ret) |
10357 | return; | |
3a2d9588 | 10358 | attrs->pci_vf.controller = controller; |
e41b6bf3 PP |
10359 | attrs->pci_vf.pf = pf; |
10360 | attrs->pci_vf.vf = vf; | |
05b595e9 | 10361 | attrs->pci_vf.external = external; |
e41b6bf3 PP |
10362 | } |
10363 | EXPORT_SYMBOL_GPL(devlink_port_attrs_pci_vf_set); | |
10364 | ||
b8288837 PP |
10365 | /** |
10366 | * devlink_port_attrs_pci_sf_set - Set PCI SF port attributes | |
10367 | * | |
10368 | * @devlink_port: devlink port | |
10369 | * @controller: associated controller number for the devlink port instance | |
10370 | * @pf: associated PF for the devlink port instance | |
10371 | * @sf: associated SF of a PF for the devlink port instance | |
a1ab3e45 | 10372 | * @external: indicates if the port is for an external controller |
b8288837 PP |
10373 | */ |
10374 | void devlink_port_attrs_pci_sf_set(struct devlink_port *devlink_port, u32 controller, | |
a1ab3e45 | 10375 | u16 pf, u32 sf, bool external) |
b8288837 PP |
10376 | { |
10377 | struct devlink_port_attrs *attrs = &devlink_port->attrs; | |
10378 | int ret; | |
10379 | ||
3fcb698d JP |
10380 | ASSERT_DEVLINK_PORT_NOT_REGISTERED(devlink_port); |
10381 | ||
b8288837 PP |
10382 | ret = __devlink_port_attrs_set(devlink_port, |
10383 | DEVLINK_PORT_FLAVOUR_PCI_SF); | |
10384 | if (ret) | |
10385 | return; | |
10386 | attrs->pci_sf.controller = controller; | |
10387 | attrs->pci_sf.pf = pf; | |
10388 | attrs->pci_sf.sf = sf; | |
a1ab3e45 | 10389 | attrs->pci_sf.external = external; |
b8288837 PP |
10390 | } |
10391 | EXPORT_SYMBOL_GPL(devlink_port_attrs_pci_sf_set); | |
10392 | ||
caba177d MW |
10393 | /** |
10394 | * devl_rate_node_create - create devlink rate node | |
10395 | * @devlink: devlink instance | |
10396 | * @priv: driver private data | |
10397 | * @node_name: name of the resulting node | |
10398 | * @parent: parent devlink_rate struct | |
10399 | * | |
10400 | * Create devlink rate object of type node | |
10401 | */ | |
10402 | struct devlink_rate * | |
10403 | devl_rate_node_create(struct devlink *devlink, void *priv, char *node_name, | |
10404 | struct devlink_rate *parent) | |
10405 | { | |
10406 | struct devlink_rate *rate_node; | |
10407 | ||
10408 | rate_node = devlink_rate_node_get_by_name(devlink, node_name); | |
10409 | if (!IS_ERR(rate_node)) | |
10410 | return ERR_PTR(-EEXIST); | |
10411 | ||
10412 | rate_node = kzalloc(sizeof(*rate_node), GFP_KERNEL); | |
10413 | if (!rate_node) | |
10414 | return ERR_PTR(-ENOMEM); | |
10415 | ||
10416 | if (parent) { | |
10417 | rate_node->parent = parent; | |
10418 | refcount_inc(&rate_node->parent->refcnt); | |
10419 | } | |
10420 | ||
10421 | rate_node->type = DEVLINK_RATE_TYPE_NODE; | |
10422 | rate_node->devlink = devlink; | |
10423 | rate_node->priv = priv; | |
10424 | ||
10425 | rate_node->name = kstrdup(node_name, GFP_KERNEL); | |
10426 | if (!rate_node->name) { | |
10427 | kfree(rate_node); | |
10428 | return ERR_PTR(-ENOMEM); | |
10429 | } | |
10430 | ||
10431 | refcount_set(&rate_node->refcnt, 1); | |
10432 | list_add(&rate_node->list, &devlink->rate_list); | |
10433 | devlink_rate_notify(rate_node, DEVLINK_CMD_RATE_NEW); | |
10434 | return rate_node; | |
10435 | } | |
10436 | EXPORT_SYMBOL_GPL(devl_rate_node_create); | |
10437 | ||
4677efc4 | 10438 | /** |
8879b32a | 10439 | * devl_rate_leaf_create - create devlink rate leaf |
4677efc4 DL |
10440 | * @devlink_port: devlink port object to create rate object on |
10441 | * @priv: driver private data | |
f2fc15e2 | 10442 | * @parent: parent devlink_rate struct |
4677efc4 DL |
10443 | * |
10444 | * Create devlink rate object of type leaf on provided @devlink_port. | |
4677efc4 | 10445 | */ |
f2fc15e2 MW |
10446 | int devl_rate_leaf_create(struct devlink_port *devlink_port, void *priv, |
10447 | struct devlink_rate *parent) | |
4677efc4 DL |
10448 | { |
10449 | struct devlink *devlink = devlink_port->devlink; | |
10450 | struct devlink_rate *devlink_rate; | |
10451 | ||
8879b32a JK |
10452 | devl_assert_locked(devlink_port->devlink); |
10453 | ||
10454 | if (WARN_ON(devlink_port->devlink_rate)) | |
10455 | return -EBUSY; | |
10456 | ||
4677efc4 DL |
10457 | devlink_rate = kzalloc(sizeof(*devlink_rate), GFP_KERNEL); |
10458 | if (!devlink_rate) | |
10459 | return -ENOMEM; | |
10460 | ||
f2fc15e2 MW |
10461 | if (parent) { |
10462 | devlink_rate->parent = parent; | |
10463 | refcount_inc(&devlink_rate->parent->refcnt); | |
10464 | } | |
10465 | ||
4677efc4 DL |
10466 | devlink_rate->type = DEVLINK_RATE_TYPE_LEAF; |
10467 | devlink_rate->devlink = devlink; | |
10468 | devlink_rate->devlink_port = devlink_port; | |
10469 | devlink_rate->priv = priv; | |
10470 | list_add_tail(&devlink_rate->list, &devlink->rate_list); | |
10471 | devlink_port->devlink_rate = devlink_rate; | |
10472 | devlink_rate_notify(devlink_rate, DEVLINK_CMD_RATE_NEW); | |
4677efc4 DL |
10473 | |
10474 | return 0; | |
10475 | } | |
8879b32a JK |
10476 | EXPORT_SYMBOL_GPL(devl_rate_leaf_create); |
10477 | ||
df539fc6 MS |
10478 | /** |
10479 | * devl_rate_leaf_destroy - destroy devlink rate leaf | |
10480 | * | |
10481 | * @devlink_port: devlink port linked to the rate object | |
10482 | * | |
10483 | * Destroy the devlink rate object of type leaf on provided @devlink_port. | |
10484 | */ | |
8879b32a JK |
10485 | void devl_rate_leaf_destroy(struct devlink_port *devlink_port) |
10486 | { | |
10487 | struct devlink_rate *devlink_rate = devlink_port->devlink_rate; | |
10488 | ||
10489 | devl_assert_locked(devlink_port->devlink); | |
10490 | if (!devlink_rate) | |
10491 | return; | |
10492 | ||
10493 | devlink_rate_notify(devlink_rate, DEVLINK_CMD_RATE_DEL); | |
10494 | if (devlink_rate->parent) | |
10495 | refcount_dec(&devlink_rate->parent->refcnt); | |
10496 | list_del(&devlink_rate->list); | |
10497 | devlink_port->devlink_rate = NULL; | |
10498 | kfree(devlink_rate); | |
10499 | } | |
10500 | EXPORT_SYMBOL_GPL(devl_rate_leaf_destroy); | |
10501 | ||
a8ecb93e | 10502 | /** |
8879b32a | 10503 | * devl_rate_nodes_destroy - destroy all devlink rate nodes on device |
a8ecb93e DL |
10504 | * @devlink: devlink instance |
10505 | * | |
d7555984 DL |
10506 | * Unset parent for all rate objects and destroy all rate nodes |
10507 | * on specified device. | |
a8ecb93e | 10508 | */ |
8879b32a | 10509 | void devl_rate_nodes_destroy(struct devlink *devlink) |
a8ecb93e DL |
10510 | { |
10511 | static struct devlink_rate *devlink_rate, *tmp; | |
10512 | const struct devlink_ops *ops = devlink->ops; | |
10513 | ||
8879b32a JK |
10514 | devl_assert_locked(devlink); |
10515 | ||
d7555984 DL |
10516 | list_for_each_entry(devlink_rate, &devlink->rate_list, list) { |
10517 | if (!devlink_rate->parent) | |
10518 | continue; | |
10519 | ||
10520 | refcount_dec(&devlink_rate->parent->refcnt); | |
10521 | if (devlink_rate_is_leaf(devlink_rate)) | |
10522 | ops->rate_leaf_parent_set(devlink_rate, NULL, devlink_rate->priv, | |
10523 | NULL, NULL); | |
10524 | else if (devlink_rate_is_node(devlink_rate)) | |
10525 | ops->rate_node_parent_set(devlink_rate, NULL, devlink_rate->priv, | |
10526 | NULL, NULL); | |
10527 | } | |
a8ecb93e DL |
10528 | list_for_each_entry_safe(devlink_rate, tmp, &devlink->rate_list, list) { |
10529 | if (devlink_rate_is_node(devlink_rate)) { | |
10530 | ops->rate_node_del(devlink_rate, devlink_rate->priv, NULL); | |
10531 | list_del(&devlink_rate->list); | |
10532 | kfree(devlink_rate->name); | |
10533 | kfree(devlink_rate); | |
10534 | } | |
10535 | } | |
8879b32a JK |
10536 | } |
10537 | EXPORT_SYMBOL_GPL(devl_rate_nodes_destroy); | |
10538 | ||
b8375859 JP |
10539 | /** |
10540 | * devlink_port_linecard_set - Link port with a linecard | |
10541 | * | |
10542 | * @devlink_port: devlink port | |
10543 | * @linecard: devlink linecard | |
10544 | */ | |
10545 | void devlink_port_linecard_set(struct devlink_port *devlink_port, | |
10546 | struct devlink_linecard *linecard) | |
10547 | { | |
3fcb698d JP |
10548 | ASSERT_DEVLINK_PORT_NOT_REGISTERED(devlink_port); |
10549 | ||
b8375859 JP |
10550 | devlink_port->linecard = linecard; |
10551 | } | |
10552 | EXPORT_SYMBOL_GPL(devlink_port_linecard_set); | |
10553 | ||
af3836df JP |
10554 | static int __devlink_port_phys_port_name_get(struct devlink_port *devlink_port, |
10555 | char *name, size_t len) | |
08474c1a JP |
10556 | { |
10557 | struct devlink_port_attrs *attrs = &devlink_port->attrs; | |
10558 | int n = 0; | |
10559 | ||
10a429ba | 10560 | if (!devlink_port->attrs_set) |
08474c1a JP |
10561 | return -EOPNOTSUPP; |
10562 | ||
10563 | switch (attrs->flavour) { | |
10564 | case DEVLINK_PORT_FLAVOUR_PHYSICAL: | |
b8375859 JP |
10565 | if (devlink_port->linecard) |
10566 | n = snprintf(name, len, "l%u", | |
10567 | devlink_port->linecard->index); | |
10568 | if (n < len) | |
10569 | n += snprintf(name + n, len - n, "p%u", | |
10570 | attrs->phys.port_number); | |
f285f37c JP |
10571 | if (n < len && attrs->split) |
10572 | n += snprintf(name + n, len - n, "s%u", | |
10573 | attrs->phys.split_subport_number); | |
08474c1a JP |
10574 | break; |
10575 | case DEVLINK_PORT_FLAVOUR_CPU: | |
10576 | case DEVLINK_PORT_FLAVOUR_DSA: | |
cf116634 | 10577 | case DEVLINK_PORT_FLAVOUR_UNUSED: |
08474c1a JP |
10578 | /* As CPU and DSA ports do not have a netdevice associated |
10579 | * case should not ever happen. | |
10580 | */ | |
10581 | WARN_ON(1); | |
10582 | return -EINVAL; | |
98fd2d65 | 10583 | case DEVLINK_PORT_FLAVOUR_PCI_PF: |
66b17082 PP |
10584 | if (attrs->pci_pf.external) { |
10585 | n = snprintf(name, len, "c%u", attrs->pci_pf.controller); | |
10586 | if (n >= len) | |
10587 | return -EINVAL; | |
10588 | len -= n; | |
10589 | name += n; | |
10590 | } | |
98fd2d65 PP |
10591 | n = snprintf(name, len, "pf%u", attrs->pci_pf.pf); |
10592 | break; | |
e41b6bf3 | 10593 | case DEVLINK_PORT_FLAVOUR_PCI_VF: |
66b17082 PP |
10594 | if (attrs->pci_vf.external) { |
10595 | n = snprintf(name, len, "c%u", attrs->pci_vf.controller); | |
10596 | if (n >= len) | |
10597 | return -EINVAL; | |
10598 | len -= n; | |
10599 | name += n; | |
10600 | } | |
e41b6bf3 PP |
10601 | n = snprintf(name, len, "pf%uvf%u", |
10602 | attrs->pci_vf.pf, attrs->pci_vf.vf); | |
10603 | break; | |
b8288837 | 10604 | case DEVLINK_PORT_FLAVOUR_PCI_SF: |
a1ab3e45 PP |
10605 | if (attrs->pci_sf.external) { |
10606 | n = snprintf(name, len, "c%u", attrs->pci_sf.controller); | |
10607 | if (n >= len) | |
10608 | return -EINVAL; | |
10609 | len -= n; | |
10610 | name += n; | |
10611 | } | |
b8288837 PP |
10612 | n = snprintf(name, len, "pf%usf%u", attrs->pci_sf.pf, |
10613 | attrs->pci_sf.sf); | |
10614 | break; | |
149ea30f PP |
10615 | case DEVLINK_PORT_FLAVOUR_VIRTUAL: |
10616 | return -EOPNOTSUPP; | |
08474c1a JP |
10617 | } |
10618 | ||
10619 | if (n >= len) | |
10620 | return -EINVAL; | |
10621 | ||
10622 | return 0; | |
10623 | } | |
af3836df | 10624 | |
fcdc8ce2 JP |
10625 | static int devlink_linecard_types_init(struct devlink_linecard *linecard) |
10626 | { | |
10627 | struct devlink_linecard_type *linecard_type; | |
10628 | unsigned int count; | |
10629 | int i; | |
10630 | ||
10631 | count = linecard->ops->types_count(linecard, linecard->priv); | |
10632 | linecard->types = kmalloc_array(count, sizeof(*linecard_type), | |
10633 | GFP_KERNEL); | |
10634 | if (!linecard->types) | |
10635 | return -ENOMEM; | |
10636 | linecard->types_count = count; | |
10637 | ||
10638 | for (i = 0; i < count; i++) { | |
10639 | linecard_type = &linecard->types[i]; | |
10640 | linecard->ops->types_get(linecard, linecard->priv, i, | |
10641 | &linecard_type->type, | |
10642 | &linecard_type->priv); | |
10643 | } | |
10644 | return 0; | |
10645 | } | |
10646 | ||
10647 | static void devlink_linecard_types_fini(struct devlink_linecard *linecard) | |
10648 | { | |
10649 | kfree(linecard->types); | |
10650 | } | |
10651 | ||
c246f9b5 JP |
10652 | /** |
10653 | * devlink_linecard_create - Create devlink linecard | |
10654 | * | |
10655 | * @devlink: devlink | |
10656 | * @linecard_index: driver-specific numerical identifier of the linecard | |
fcdc8ce2 JP |
10657 | * @ops: linecards ops |
10658 | * @priv: user priv pointer | |
c246f9b5 JP |
10659 | * |
10660 | * Create devlink linecard instance with provided linecard index. | |
10661 | * Caller can use any indexing, even hw-related one. | |
fcdc8ce2 JP |
10662 | * |
10663 | * Return: Line card structure or an ERR_PTR() encoded error code. | |
c246f9b5 | 10664 | */ |
fcdc8ce2 JP |
10665 | struct devlink_linecard * |
10666 | devlink_linecard_create(struct devlink *devlink, unsigned int linecard_index, | |
10667 | const struct devlink_linecard_ops *ops, void *priv) | |
c246f9b5 JP |
10668 | { |
10669 | struct devlink_linecard *linecard; | |
fcdc8ce2 JP |
10670 | int err; |
10671 | ||
10672 | if (WARN_ON(!ops || !ops->provision || !ops->unprovision || | |
10673 | !ops->types_count || !ops->types_get)) | |
10674 | return ERR_PTR(-EINVAL); | |
c246f9b5 JP |
10675 | |
10676 | mutex_lock(&devlink->linecards_lock); | |
10677 | if (devlink_linecard_index_exists(devlink, linecard_index)) { | |
10678 | mutex_unlock(&devlink->linecards_lock); | |
10679 | return ERR_PTR(-EEXIST); | |
10680 | } | |
10681 | ||
10682 | linecard = kzalloc(sizeof(*linecard), GFP_KERNEL); | |
10683 | if (!linecard) { | |
10684 | mutex_unlock(&devlink->linecards_lock); | |
10685 | return ERR_PTR(-ENOMEM); | |
10686 | } | |
10687 | ||
10688 | linecard->devlink = devlink; | |
10689 | linecard->index = linecard_index; | |
fcdc8ce2 JP |
10690 | linecard->ops = ops; |
10691 | linecard->priv = priv; | |
10692 | linecard->state = DEVLINK_LINECARD_STATE_UNPROVISIONED; | |
10693 | mutex_init(&linecard->state_lock); | |
10694 | ||
10695 | err = devlink_linecard_types_init(linecard); | |
10696 | if (err) { | |
10697 | mutex_destroy(&linecard->state_lock); | |
10698 | kfree(linecard); | |
10699 | mutex_unlock(&devlink->linecards_lock); | |
10700 | return ERR_PTR(err); | |
10701 | } | |
10702 | ||
c246f9b5 JP |
10703 | list_add_tail(&linecard->list, &devlink->linecard_list); |
10704 | refcount_set(&linecard->refcount, 1); | |
10705 | mutex_unlock(&devlink->linecards_lock); | |
10706 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
10707 | return linecard; | |
10708 | } | |
10709 | EXPORT_SYMBOL_GPL(devlink_linecard_create); | |
10710 | ||
10711 | /** | |
10712 | * devlink_linecard_destroy - Destroy devlink linecard | |
10713 | * | |
10714 | * @linecard: devlink linecard | |
10715 | */ | |
10716 | void devlink_linecard_destroy(struct devlink_linecard *linecard) | |
10717 | { | |
10718 | struct devlink *devlink = linecard->devlink; | |
10719 | ||
10720 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_DEL); | |
10721 | mutex_lock(&devlink->linecards_lock); | |
10722 | list_del(&linecard->list); | |
fcdc8ce2 | 10723 | devlink_linecard_types_fini(linecard); |
c246f9b5 JP |
10724 | mutex_unlock(&devlink->linecards_lock); |
10725 | devlink_linecard_put(linecard); | |
10726 | } | |
10727 | EXPORT_SYMBOL_GPL(devlink_linecard_destroy); | |
10728 | ||
fcdc8ce2 JP |
10729 | /** |
10730 | * devlink_linecard_provision_set - Set provisioning on linecard | |
10731 | * | |
10732 | * @linecard: devlink linecard | |
10733 | * @type: linecard type | |
10734 | * | |
10735 | * This is either called directly from the provision() op call or | |
10736 | * as a result of the provision() op call asynchronously. | |
10737 | */ | |
10738 | void devlink_linecard_provision_set(struct devlink_linecard *linecard, | |
10739 | const char *type) | |
10740 | { | |
10741 | mutex_lock(&linecard->state_lock); | |
10742 | WARN_ON(linecard->type && strcmp(linecard->type, type)); | |
10743 | linecard->state = DEVLINK_LINECARD_STATE_PROVISIONED; | |
10744 | linecard->type = type; | |
10745 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
10746 | mutex_unlock(&linecard->state_lock); | |
10747 | } | |
10748 | EXPORT_SYMBOL_GPL(devlink_linecard_provision_set); | |
10749 | ||
10750 | /** | |
10751 | * devlink_linecard_provision_clear - Clear provisioning on linecard | |
10752 | * | |
10753 | * @linecard: devlink linecard | |
10754 | * | |
10755 | * This is either called directly from the unprovision() op call or | |
10756 | * as a result of the unprovision() op call asynchronously. | |
10757 | */ | |
10758 | void devlink_linecard_provision_clear(struct devlink_linecard *linecard) | |
10759 | { | |
10760 | mutex_lock(&linecard->state_lock); | |
7b2d9a1a | 10761 | WARN_ON(linecard->nested_devlink); |
fcdc8ce2 JP |
10762 | linecard->state = DEVLINK_LINECARD_STATE_UNPROVISIONED; |
10763 | linecard->type = NULL; | |
10764 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
10765 | mutex_unlock(&linecard->state_lock); | |
10766 | } | |
10767 | EXPORT_SYMBOL_GPL(devlink_linecard_provision_clear); | |
10768 | ||
10769 | /** | |
10770 | * devlink_linecard_provision_fail - Fail provisioning on linecard | |
10771 | * | |
10772 | * @linecard: devlink linecard | |
10773 | * | |
10774 | * This is either called directly from the provision() op call or | |
10775 | * as a result of the provision() op call asynchronously. | |
10776 | */ | |
10777 | void devlink_linecard_provision_fail(struct devlink_linecard *linecard) | |
10778 | { | |
10779 | mutex_lock(&linecard->state_lock); | |
7b2d9a1a | 10780 | WARN_ON(linecard->nested_devlink); |
fcdc8ce2 JP |
10781 | linecard->state = DEVLINK_LINECARD_STATE_PROVISIONING_FAILED; |
10782 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
10783 | mutex_unlock(&linecard->state_lock); | |
10784 | } | |
10785 | EXPORT_SYMBOL_GPL(devlink_linecard_provision_fail); | |
10786 | ||
fc9f50d5 JP |
10787 | /** |
10788 | * devlink_linecard_activate - Set linecard active | |
10789 | * | |
10790 | * @linecard: devlink linecard | |
10791 | */ | |
10792 | void devlink_linecard_activate(struct devlink_linecard *linecard) | |
10793 | { | |
10794 | mutex_lock(&linecard->state_lock); | |
10795 | WARN_ON(linecard->state != DEVLINK_LINECARD_STATE_PROVISIONED); | |
10796 | linecard->state = DEVLINK_LINECARD_STATE_ACTIVE; | |
10797 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
10798 | mutex_unlock(&linecard->state_lock); | |
10799 | } | |
10800 | EXPORT_SYMBOL_GPL(devlink_linecard_activate); | |
10801 | ||
10802 | /** | |
10803 | * devlink_linecard_deactivate - Set linecard inactive | |
10804 | * | |
10805 | * @linecard: devlink linecard | |
10806 | */ | |
10807 | void devlink_linecard_deactivate(struct devlink_linecard *linecard) | |
10808 | { | |
10809 | mutex_lock(&linecard->state_lock); | |
10810 | switch (linecard->state) { | |
10811 | case DEVLINK_LINECARD_STATE_ACTIVE: | |
10812 | linecard->state = DEVLINK_LINECARD_STATE_PROVISIONED; | |
10813 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
10814 | break; | |
10815 | case DEVLINK_LINECARD_STATE_UNPROVISIONING: | |
10816 | /* Line card is being deactivated as part | |
10817 | * of unprovisioning flow. | |
10818 | */ | |
10819 | break; | |
10820 | default: | |
10821 | WARN_ON(1); | |
10822 | break; | |
10823 | } | |
10824 | mutex_unlock(&linecard->state_lock); | |
10825 | } | |
10826 | EXPORT_SYMBOL_GPL(devlink_linecard_deactivate); | |
10827 | ||
7b2d9a1a JP |
10828 | /** |
10829 | * devlink_linecard_nested_dl_set - Attach/detach nested devlink | |
10830 | * instance to linecard. | |
10831 | * | |
10832 | * @linecard: devlink linecard | |
10833 | * @nested_devlink: devlink instance to attach or NULL to detach | |
10834 | */ | |
10835 | void devlink_linecard_nested_dl_set(struct devlink_linecard *linecard, | |
10836 | struct devlink *nested_devlink) | |
10837 | { | |
10838 | mutex_lock(&linecard->state_lock); | |
10839 | linecard->nested_devlink = nested_devlink; | |
10840 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
10841 | mutex_unlock(&linecard->state_lock); | |
10842 | } | |
10843 | EXPORT_SYMBOL_GPL(devlink_linecard_nested_dl_set); | |
10844 | ||
755cfa69 JP |
10845 | int devl_sb_register(struct devlink *devlink, unsigned int sb_index, |
10846 | u32 size, u16 ingress_pools_count, | |
10847 | u16 egress_pools_count, u16 ingress_tc_count, | |
10848 | u16 egress_tc_count) | |
bf797471 JP |
10849 | { |
10850 | struct devlink_sb *devlink_sb; | |
bf797471 | 10851 | |
755cfa69 JP |
10852 | lockdep_assert_held(&devlink->lock); |
10853 | ||
10854 | if (devlink_sb_index_exists(devlink, sb_index)) | |
10855 | return -EEXIST; | |
bf797471 JP |
10856 | |
10857 | devlink_sb = kzalloc(sizeof(*devlink_sb), GFP_KERNEL); | |
755cfa69 JP |
10858 | if (!devlink_sb) |
10859 | return -ENOMEM; | |
bf797471 JP |
10860 | devlink_sb->index = sb_index; |
10861 | devlink_sb->size = size; | |
10862 | devlink_sb->ingress_pools_count = ingress_pools_count; | |
10863 | devlink_sb->egress_pools_count = egress_pools_count; | |
10864 | devlink_sb->ingress_tc_count = ingress_tc_count; | |
10865 | devlink_sb->egress_tc_count = egress_tc_count; | |
10866 | list_add_tail(&devlink_sb->list, &devlink->sb_list); | |
755cfa69 JP |
10867 | return 0; |
10868 | } | |
10869 | EXPORT_SYMBOL_GPL(devl_sb_register); | |
10870 | ||
10871 | int devlink_sb_register(struct devlink *devlink, unsigned int sb_index, | |
10872 | u32 size, u16 ingress_pools_count, | |
10873 | u16 egress_pools_count, u16 ingress_tc_count, | |
10874 | u16 egress_tc_count) | |
10875 | { | |
10876 | int err; | |
10877 | ||
10878 | devl_lock(devlink); | |
10879 | err = devl_sb_register(devlink, sb_index, size, ingress_pools_count, | |
10880 | egress_pools_count, ingress_tc_count, | |
10881 | egress_tc_count); | |
7715023a | 10882 | devl_unlock(devlink); |
bf797471 JP |
10883 | return err; |
10884 | } | |
10885 | EXPORT_SYMBOL_GPL(devlink_sb_register); | |
10886 | ||
755cfa69 | 10887 | void devl_sb_unregister(struct devlink *devlink, unsigned int sb_index) |
bf797471 JP |
10888 | { |
10889 | struct devlink_sb *devlink_sb; | |
10890 | ||
755cfa69 JP |
10891 | lockdep_assert_held(&devlink->lock); |
10892 | ||
bf797471 JP |
10893 | devlink_sb = devlink_sb_get_by_index(devlink, sb_index); |
10894 | WARN_ON(!devlink_sb); | |
10895 | list_del(&devlink_sb->list); | |
bf797471 JP |
10896 | kfree(devlink_sb); |
10897 | } | |
755cfa69 JP |
10898 | EXPORT_SYMBOL_GPL(devl_sb_unregister); |
10899 | ||
10900 | void devlink_sb_unregister(struct devlink *devlink, unsigned int sb_index) | |
10901 | { | |
10902 | devl_lock(devlink); | |
10903 | devl_sb_unregister(devlink, sb_index); | |
10904 | devl_unlock(devlink); | |
10905 | } | |
bf797471 JP |
10906 | EXPORT_SYMBOL_GPL(devlink_sb_unregister); |
10907 | ||
70a2ff89 JP |
10908 | /** |
10909 | * devl_dpipe_headers_register - register dpipe headers | |
10910 | * | |
10911 | * @devlink: devlink | |
10912 | * @dpipe_headers: dpipe header array | |
10913 | * | |
10914 | * Register the headers supported by hardware. | |
10915 | */ | |
10916 | void devl_dpipe_headers_register(struct devlink *devlink, | |
10917 | struct devlink_dpipe_headers *dpipe_headers) | |
10918 | { | |
10919 | lockdep_assert_held(&devlink->lock); | |
10920 | ||
10921 | devlink->dpipe_headers = dpipe_headers; | |
10922 | } | |
10923 | EXPORT_SYMBOL_GPL(devl_dpipe_headers_register); | |
10924 | ||
70a2ff89 JP |
10925 | /** |
10926 | * devl_dpipe_headers_unregister - unregister dpipe headers | |
10927 | * | |
10928 | * @devlink: devlink | |
10929 | * | |
10930 | * Unregister the headers supported by hardware. | |
10931 | */ | |
10932 | void devl_dpipe_headers_unregister(struct devlink *devlink) | |
10933 | { | |
10934 | lockdep_assert_held(&devlink->lock); | |
10935 | ||
10936 | devlink->dpipe_headers = NULL; | |
10937 | } | |
10938 | EXPORT_SYMBOL_GPL(devl_dpipe_headers_unregister); | |
10939 | ||
1555d204 AS |
10940 | /** |
10941 | * devlink_dpipe_table_counter_enabled - check if counter allocation | |
10942 | * required | |
10943 | * @devlink: devlink | |
10944 | * @table_name: tables name | |
10945 | * | |
10946 | * Used by driver to check if counter allocation is required. | |
10947 | * After counter allocation is turned on the table entries | |
10948 | * are updated to include counter statistics. | |
10949 | * | |
10950 | * After that point on the driver must respect the counter | |
10951 | * state so that each entry added to the table is added | |
10952 | * with a counter. | |
10953 | */ | |
10954 | bool devlink_dpipe_table_counter_enabled(struct devlink *devlink, | |
10955 | const char *table_name) | |
10956 | { | |
10957 | struct devlink_dpipe_table *table; | |
10958 | bool enabled; | |
10959 | ||
10960 | rcu_read_lock(); | |
10961 | table = devlink_dpipe_table_find(&devlink->dpipe_table_list, | |
2eb51c75 | 10962 | table_name, devlink); |
1555d204 AS |
10963 | enabled = false; |
10964 | if (table) | |
10965 | enabled = table->counters_enabled; | |
10966 | rcu_read_unlock(); | |
10967 | return enabled; | |
10968 | } | |
10969 | EXPORT_SYMBOL_GPL(devlink_dpipe_table_counter_enabled); | |
10970 | ||
10971 | /** | |
70a2ff89 | 10972 | * devl_dpipe_table_register - register dpipe table |
1555d204 | 10973 | * |
70a2ff89 JP |
10974 | * @devlink: devlink |
10975 | * @table_name: table name | |
10976 | * @table_ops: table ops | |
10977 | * @priv: priv | |
10978 | * @counter_control_extern: external control for counters | |
1555d204 | 10979 | */ |
70a2ff89 JP |
10980 | int devl_dpipe_table_register(struct devlink *devlink, |
10981 | const char *table_name, | |
10982 | struct devlink_dpipe_table_ops *table_ops, | |
10983 | void *priv, bool counter_control_extern) | |
1555d204 AS |
10984 | { |
10985 | struct devlink_dpipe_table *table; | |
70a2ff89 JP |
10986 | |
10987 | lockdep_assert_held(&devlink->lock); | |
1555d204 | 10988 | |
ffd3cdcc AS |
10989 | if (WARN_ON(!table_ops->size_get)) |
10990 | return -EINVAL; | |
10991 | ||
2eb51c75 | 10992 | if (devlink_dpipe_table_find(&devlink->dpipe_table_list, table_name, |
70a2ff89 JP |
10993 | devlink)) |
10994 | return -EEXIST; | |
6132c1d9 | 10995 | |
1555d204 | 10996 | table = kzalloc(sizeof(*table), GFP_KERNEL); |
70a2ff89 JP |
10997 | if (!table) |
10998 | return -ENOMEM; | |
1555d204 AS |
10999 | |
11000 | table->name = table_name; | |
11001 | table->table_ops = table_ops; | |
11002 | table->priv = priv; | |
1555d204 AS |
11003 | table->counter_control_extern = counter_control_extern; |
11004 | ||
1555d204 | 11005 | list_add_tail_rcu(&table->list, &devlink->dpipe_table_list); |
70a2ff89 JP |
11006 | |
11007 | return 0; | |
11008 | } | |
11009 | EXPORT_SYMBOL_GPL(devl_dpipe_table_register); | |
11010 | ||
1555d204 | 11011 | /** |
70a2ff89 | 11012 | * devl_dpipe_table_unregister - unregister dpipe table |
1555d204 | 11013 | * |
70a2ff89 JP |
11014 | * @devlink: devlink |
11015 | * @table_name: table name | |
1555d204 | 11016 | */ |
70a2ff89 JP |
11017 | void devl_dpipe_table_unregister(struct devlink *devlink, |
11018 | const char *table_name) | |
1555d204 AS |
11019 | { |
11020 | struct devlink_dpipe_table *table; | |
11021 | ||
70a2ff89 JP |
11022 | lockdep_assert_held(&devlink->lock); |
11023 | ||
1555d204 | 11024 | table = devlink_dpipe_table_find(&devlink->dpipe_table_list, |
2eb51c75 | 11025 | table_name, devlink); |
1555d204 | 11026 | if (!table) |
70a2ff89 | 11027 | return; |
1555d204 | 11028 | list_del_rcu(&table->list); |
1555d204 | 11029 | kfree_rcu(table, rcu); |
70a2ff89 JP |
11030 | } |
11031 | EXPORT_SYMBOL_GPL(devl_dpipe_table_unregister); | |
11032 | ||
d9f9b9a4 | 11033 | /** |
c223d6a4 | 11034 | * devl_resource_register - devlink resource register |
d9f9b9a4 | 11035 | * |
c223d6a4 JP |
11036 | * @devlink: devlink |
11037 | * @resource_name: resource's name | |
11038 | * @resource_size: resource's size | |
11039 | * @resource_id: resource's id | |
11040 | * @parent_resource_id: resource's parent id | |
11041 | * @size_params: size parameters | |
321f7ab0 | 11042 | * |
c223d6a4 JP |
11043 | * Generic resources should reuse the same names across drivers. |
11044 | * Please see the generic resources list at: | |
11045 | * Documentation/networking/devlink/devlink-resource.rst | |
d9f9b9a4 | 11046 | */ |
c223d6a4 JP |
11047 | int devl_resource_register(struct devlink *devlink, |
11048 | const char *resource_name, | |
11049 | u64 resource_size, | |
11050 | u64 resource_id, | |
11051 | u64 parent_resource_id, | |
11052 | const struct devlink_resource_size_params *size_params) | |
d9f9b9a4 AS |
11053 | { |
11054 | struct devlink_resource *resource; | |
11055 | struct list_head *resource_list; | |
14530746 | 11056 | bool top_hierarchy; |
c223d6a4 JP |
11057 | |
11058 | lockdep_assert_held(&devlink->lock); | |
d9f9b9a4 | 11059 | |
14530746 DA |
11060 | top_hierarchy = parent_resource_id == DEVLINK_RESOURCE_ID_PARENT_TOP; |
11061 | ||
d9f9b9a4 | 11062 | resource = devlink_resource_find(devlink, NULL, resource_id); |
c223d6a4 JP |
11063 | if (resource) |
11064 | return -EINVAL; | |
d9f9b9a4 AS |
11065 | |
11066 | resource = kzalloc(sizeof(*resource), GFP_KERNEL); | |
c223d6a4 JP |
11067 | if (!resource) |
11068 | return -ENOMEM; | |
d9f9b9a4 AS |
11069 | |
11070 | if (top_hierarchy) { | |
11071 | resource_list = &devlink->resource_list; | |
11072 | } else { | |
11073 | struct devlink_resource *parent_resource; | |
11074 | ||
11075 | parent_resource = devlink_resource_find(devlink, NULL, | |
11076 | parent_resource_id); | |
11077 | if (parent_resource) { | |
11078 | resource_list = &parent_resource->resource_list; | |
11079 | resource->parent = parent_resource; | |
11080 | } else { | |
b75703de | 11081 | kfree(resource); |
c223d6a4 | 11082 | return -EINVAL; |
d9f9b9a4 AS |
11083 | } |
11084 | } | |
11085 | ||
11086 | resource->name = resource_name; | |
11087 | resource->size = resource_size; | |
11088 | resource->size_new = resource_size; | |
11089 | resource->id = resource_id; | |
d9f9b9a4 | 11090 | resource->size_valid = true; |
77d27096 JP |
11091 | memcpy(&resource->size_params, size_params, |
11092 | sizeof(resource->size_params)); | |
d9f9b9a4 AS |
11093 | INIT_LIST_HEAD(&resource->resource_list); |
11094 | list_add_tail(&resource->list, resource_list); | |
c223d6a4 JP |
11095 | |
11096 | return 0; | |
11097 | } | |
11098 | EXPORT_SYMBOL_GPL(devl_resource_register); | |
11099 | ||
11100 | /** | |
11101 | * devlink_resource_register - devlink resource register | |
11102 | * | |
11103 | * @devlink: devlink | |
11104 | * @resource_name: resource's name | |
11105 | * @resource_size: resource's size | |
11106 | * @resource_id: resource's id | |
11107 | * @parent_resource_id: resource's parent id | |
11108 | * @size_params: size parameters | |
11109 | * | |
11110 | * Generic resources should reuse the same names across drivers. | |
11111 | * Please see the generic resources list at: | |
11112 | * Documentation/networking/devlink/devlink-resource.rst | |
11113 | * | |
11114 | * Context: Takes and release devlink->lock <mutex>. | |
11115 | */ | |
11116 | int devlink_resource_register(struct devlink *devlink, | |
11117 | const char *resource_name, | |
11118 | u64 resource_size, | |
11119 | u64 resource_id, | |
11120 | u64 parent_resource_id, | |
11121 | const struct devlink_resource_size_params *size_params) | |
11122 | { | |
11123 | int err; | |
11124 | ||
11125 | devl_lock(devlink); | |
11126 | err = devl_resource_register(devlink, resource_name, resource_size, | |
11127 | resource_id, parent_resource_id, size_params); | |
7715023a | 11128 | devl_unlock(devlink); |
d9f9b9a4 AS |
11129 | return err; |
11130 | } | |
11131 | EXPORT_SYMBOL_GPL(devlink_resource_register); | |
11132 | ||
4c897cfc LR |
11133 | static void devlink_resource_unregister(struct devlink *devlink, |
11134 | struct devlink_resource *resource) | |
11135 | { | |
11136 | struct devlink_resource *tmp, *child_resource; | |
11137 | ||
11138 | list_for_each_entry_safe(child_resource, tmp, &resource->resource_list, | |
11139 | list) { | |
11140 | devlink_resource_unregister(devlink, child_resource); | |
11141 | list_del(&child_resource->list); | |
11142 | kfree(child_resource); | |
11143 | } | |
11144 | } | |
11145 | ||
d9f9b9a4 | 11146 | /** |
c223d6a4 | 11147 | * devl_resources_unregister - free all resources |
d9f9b9a4 | 11148 | * |
c223d6a4 | 11149 | * @devlink: devlink |
d9f9b9a4 | 11150 | */ |
c223d6a4 | 11151 | void devl_resources_unregister(struct devlink *devlink) |
d9f9b9a4 AS |
11152 | { |
11153 | struct devlink_resource *tmp, *child_resource; | |
d9f9b9a4 | 11154 | |
c223d6a4 | 11155 | lockdep_assert_held(&devlink->lock); |
d9f9b9a4 | 11156 | |
4c897cfc LR |
11157 | list_for_each_entry_safe(child_resource, tmp, &devlink->resource_list, |
11158 | list) { | |
11159 | devlink_resource_unregister(devlink, child_resource); | |
d9f9b9a4 AS |
11160 | list_del(&child_resource->list); |
11161 | kfree(child_resource); | |
11162 | } | |
c223d6a4 JP |
11163 | } |
11164 | EXPORT_SYMBOL_GPL(devl_resources_unregister); | |
d9f9b9a4 | 11165 | |
c223d6a4 JP |
11166 | /** |
11167 | * devlink_resources_unregister - free all resources | |
11168 | * | |
11169 | * @devlink: devlink | |
11170 | * | |
11171 | * Context: Takes and release devlink->lock <mutex>. | |
11172 | */ | |
11173 | void devlink_resources_unregister(struct devlink *devlink) | |
11174 | { | |
11175 | devl_lock(devlink); | |
11176 | devl_resources_unregister(devlink); | |
7715023a | 11177 | devl_unlock(devlink); |
d9f9b9a4 AS |
11178 | } |
11179 | EXPORT_SYMBOL_GPL(devlink_resources_unregister); | |
11180 | ||
c223d6a4 JP |
11181 | /** |
11182 | * devl_resource_size_get - get and update size | |
11183 | * | |
11184 | * @devlink: devlink | |
11185 | * @resource_id: the requested resource id | |
11186 | * @p_resource_size: ptr to update | |
11187 | */ | |
11188 | int devl_resource_size_get(struct devlink *devlink, | |
11189 | u64 resource_id, | |
11190 | u64 *p_resource_size) | |
11191 | { | |
11192 | struct devlink_resource *resource; | |
11193 | ||
11194 | lockdep_assert_held(&devlink->lock); | |
11195 | ||
11196 | resource = devlink_resource_find(devlink, NULL, resource_id); | |
11197 | if (!resource) | |
11198 | return -EINVAL; | |
11199 | *p_resource_size = resource->size_new; | |
11200 | resource->size = resource->size_new; | |
11201 | return 0; | |
11202 | } | |
11203 | EXPORT_SYMBOL_GPL(devl_resource_size_get); | |
11204 | ||
70a2ff89 JP |
11205 | /** |
11206 | * devl_dpipe_table_resource_set - set the resource id | |
11207 | * | |
11208 | * @devlink: devlink | |
11209 | * @table_name: table name | |
11210 | * @resource_id: resource id | |
11211 | * @resource_units: number of resource's units consumed per table's entry | |
11212 | */ | |
11213 | int devl_dpipe_table_resource_set(struct devlink *devlink, | |
11214 | const char *table_name, u64 resource_id, | |
11215 | u64 resource_units) | |
11216 | { | |
11217 | struct devlink_dpipe_table *table; | |
11218 | ||
11219 | table = devlink_dpipe_table_find(&devlink->dpipe_table_list, | |
11220 | table_name, devlink); | |
11221 | if (!table) | |
11222 | return -EINVAL; | |
11223 | ||
11224 | table->resource_id = resource_id; | |
11225 | table->resource_units = resource_units; | |
11226 | table->resource_valid = true; | |
11227 | return 0; | |
11228 | } | |
11229 | EXPORT_SYMBOL_GPL(devl_dpipe_table_resource_set); | |
11230 | ||
c223d6a4 JP |
11231 | /** |
11232 | * devl_resource_occ_get_register - register occupancy getter | |
11233 | * | |
11234 | * @devlink: devlink | |
11235 | * @resource_id: resource id | |
11236 | * @occ_get: occupancy getter callback | |
11237 | * @occ_get_priv: occupancy getter callback priv | |
11238 | */ | |
11239 | void devl_resource_occ_get_register(struct devlink *devlink, | |
11240 | u64 resource_id, | |
11241 | devlink_resource_occ_get_t *occ_get, | |
11242 | void *occ_get_priv) | |
11243 | { | |
11244 | struct devlink_resource *resource; | |
11245 | ||
11246 | lockdep_assert_held(&devlink->lock); | |
11247 | ||
11248 | resource = devlink_resource_find(devlink, NULL, resource_id); | |
11249 | if (WARN_ON(!resource)) | |
11250 | return; | |
11251 | WARN_ON(resource->occ_get); | |
11252 | ||
11253 | resource->occ_get = occ_get; | |
11254 | resource->occ_get_priv = occ_get_priv; | |
11255 | } | |
11256 | EXPORT_SYMBOL_GPL(devl_resource_occ_get_register); | |
11257 | ||
fc56be47 JP |
11258 | /** |
11259 | * devlink_resource_occ_get_register - register occupancy getter | |
11260 | * | |
11261 | * @devlink: devlink | |
11262 | * @resource_id: resource id | |
11263 | * @occ_get: occupancy getter callback | |
11264 | * @occ_get_priv: occupancy getter callback priv | |
c223d6a4 JP |
11265 | * |
11266 | * Context: Takes and release devlink->lock <mutex>. | |
fc56be47 JP |
11267 | */ |
11268 | void devlink_resource_occ_get_register(struct devlink *devlink, | |
11269 | u64 resource_id, | |
11270 | devlink_resource_occ_get_t *occ_get, | |
11271 | void *occ_get_priv) | |
11272 | { | |
7715023a | 11273 | devl_lock(devlink); |
c223d6a4 JP |
11274 | devl_resource_occ_get_register(devlink, resource_id, |
11275 | occ_get, occ_get_priv); | |
7715023a | 11276 | devl_unlock(devlink); |
fc56be47 JP |
11277 | } |
11278 | EXPORT_SYMBOL_GPL(devlink_resource_occ_get_register); | |
11279 | ||
11280 | /** | |
c223d6a4 | 11281 | * devl_resource_occ_get_unregister - unregister occupancy getter |
fc56be47 | 11282 | * |
c223d6a4 JP |
11283 | * @devlink: devlink |
11284 | * @resource_id: resource id | |
fc56be47 | 11285 | */ |
c223d6a4 JP |
11286 | void devl_resource_occ_get_unregister(struct devlink *devlink, |
11287 | u64 resource_id) | |
fc56be47 JP |
11288 | { |
11289 | struct devlink_resource *resource; | |
11290 | ||
c223d6a4 JP |
11291 | lockdep_assert_held(&devlink->lock); |
11292 | ||
fc56be47 JP |
11293 | resource = devlink_resource_find(devlink, NULL, resource_id); |
11294 | if (WARN_ON(!resource)) | |
c223d6a4 | 11295 | return; |
fc56be47 JP |
11296 | WARN_ON(!resource->occ_get); |
11297 | ||
11298 | resource->occ_get = NULL; | |
11299 | resource->occ_get_priv = NULL; | |
c223d6a4 JP |
11300 | } |
11301 | EXPORT_SYMBOL_GPL(devl_resource_occ_get_unregister); | |
11302 | ||
11303 | /** | |
11304 | * devlink_resource_occ_get_unregister - unregister occupancy getter | |
11305 | * | |
11306 | * @devlink: devlink | |
11307 | * @resource_id: resource id | |
11308 | * | |
11309 | * Context: Takes and release devlink->lock <mutex>. | |
11310 | */ | |
11311 | void devlink_resource_occ_get_unregister(struct devlink *devlink, | |
11312 | u64 resource_id) | |
11313 | { | |
11314 | devl_lock(devlink); | |
11315 | devl_resource_occ_get_unregister(devlink, resource_id); | |
7715023a | 11316 | devl_unlock(devlink); |
fc56be47 JP |
11317 | } |
11318 | EXPORT_SYMBOL_GPL(devlink_resource_occ_get_unregister); | |
11319 | ||
39e6160e VV |
11320 | static int devlink_param_verify(const struct devlink_param *param) |
11321 | { | |
11322 | if (!param || !param->name || !param->supported_cmodes) | |
11323 | return -EINVAL; | |
11324 | if (param->generic) | |
11325 | return devlink_param_generic_verify(param); | |
11326 | else | |
11327 | return devlink_param_driver_verify(param); | |
11328 | } | |
11329 | ||
39e6160e VV |
11330 | /** |
11331 | * devlink_params_register - register configuration parameters | |
11332 | * | |
11333 | * @devlink: devlink | |
11334 | * @params: configuration parameters array | |
11335 | * @params_count: number of parameters provided | |
11336 | * | |
11337 | * Register the configuration parameters supported by the driver. | |
11338 | */ | |
11339 | int devlink_params_register(struct devlink *devlink, | |
11340 | const struct devlink_param *params, | |
11341 | size_t params_count) | |
11342 | { | |
ee775b56 LR |
11343 | const struct devlink_param *param = params; |
11344 | int i, err; | |
11345 | ||
7a690ad4 LR |
11346 | ASSERT_DEVLINK_NOT_REGISTERED(devlink); |
11347 | ||
ee775b56 LR |
11348 | for (i = 0; i < params_count; i++, param++) { |
11349 | err = devlink_param_register(devlink, param); | |
11350 | if (err) | |
11351 | goto rollback; | |
11352 | } | |
11353 | return 0; | |
11354 | ||
11355 | rollback: | |
11356 | if (!i) | |
11357 | return err; | |
11358 | ||
11359 | for (param--; i > 0; i--, param--) | |
11360 | devlink_param_unregister(devlink, param); | |
11361 | return err; | |
39e6160e | 11362 | } |
eabaef18 MS |
11363 | EXPORT_SYMBOL_GPL(devlink_params_register); |
11364 | ||
11365 | /** | |
11366 | * devlink_params_unregister - unregister configuration parameters | |
11367 | * @devlink: devlink | |
11368 | * @params: configuration parameters to unregister | |
11369 | * @params_count: number of parameters provided | |
11370 | */ | |
11371 | void devlink_params_unregister(struct devlink *devlink, | |
11372 | const struct devlink_param *params, | |
11373 | size_t params_count) | |
11374 | { | |
ee775b56 LR |
11375 | const struct devlink_param *param = params; |
11376 | int i; | |
11377 | ||
7a690ad4 LR |
11378 | ASSERT_DEVLINK_NOT_REGISTERED(devlink); |
11379 | ||
ee775b56 LR |
11380 | for (i = 0; i < params_count; i++, param++) |
11381 | devlink_param_unregister(devlink, param); | |
eabaef18 MS |
11382 | } |
11383 | EXPORT_SYMBOL_GPL(devlink_params_unregister); | |
11384 | ||
b40c51ef PP |
11385 | /** |
11386 | * devlink_param_register - register one configuration parameter | |
11387 | * | |
11388 | * @devlink: devlink | |
11389 | * @param: one configuration parameter | |
11390 | * | |
11391 | * Register the configuration parameter supported by the driver. | |
11392 | * Return: returns 0 on successful registration or error code otherwise. | |
11393 | */ | |
11394 | int devlink_param_register(struct devlink *devlink, | |
11395 | const struct devlink_param *param) | |
11396 | { | |
ee775b56 | 11397 | struct devlink_param_item *param_item; |
b40c51ef | 11398 | |
7a690ad4 LR |
11399 | ASSERT_DEVLINK_NOT_REGISTERED(devlink); |
11400 | ||
ee775b56 LR |
11401 | WARN_ON(devlink_param_verify(param)); |
11402 | WARN_ON(devlink_param_find_by_name(&devlink->param_list, param->name)); | |
11403 | ||
11404 | if (param->supported_cmodes == BIT(DEVLINK_PARAM_CMODE_DRIVERINIT)) | |
11405 | WARN_ON(param->get || param->set); | |
11406 | else | |
11407 | WARN_ON(!param->get || !param->set); | |
11408 | ||
11409 | param_item = kzalloc(sizeof(*param_item), GFP_KERNEL); | |
11410 | if (!param_item) | |
11411 | return -ENOMEM; | |
11412 | ||
11413 | param_item->param = param; | |
11414 | ||
11415 | list_add_tail(¶m_item->list, &devlink->param_list); | |
11416 | return 0; | |
b40c51ef PP |
11417 | } |
11418 | EXPORT_SYMBOL_GPL(devlink_param_register); | |
11419 | ||
11420 | /** | |
11421 | * devlink_param_unregister - unregister one configuration parameter | |
11422 | * @devlink: devlink | |
11423 | * @param: configuration parameter to unregister | |
11424 | */ | |
11425 | void devlink_param_unregister(struct devlink *devlink, | |
11426 | const struct devlink_param *param) | |
11427 | { | |
ee775b56 LR |
11428 | struct devlink_param_item *param_item; |
11429 | ||
7a690ad4 LR |
11430 | ASSERT_DEVLINK_NOT_REGISTERED(devlink); |
11431 | ||
ee775b56 LR |
11432 | param_item = |
11433 | devlink_param_find_by_name(&devlink->param_list, param->name); | |
11434 | WARN_ON(!param_item); | |
11435 | list_del(¶m_item->list); | |
11436 | kfree(param_item); | |
b40c51ef PP |
11437 | } |
11438 | EXPORT_SYMBOL_GPL(devlink_param_unregister); | |
11439 | ||
8ba024df LR |
11440 | /** |
11441 | * devlink_param_driverinit_value_get - get configuration parameter | |
11442 | * value for driver initializing | |
11443 | * | |
11444 | * @devlink: devlink | |
11445 | * @param_id: parameter ID | |
11446 | * @init_val: value of parameter in driverinit configuration mode | |
11447 | * | |
11448 | * This function should be used by the driver to get driverinit | |
11449 | * configuration for initialization after reload command. | |
11450 | */ | |
11451 | int devlink_param_driverinit_value_get(struct devlink *devlink, u32 param_id, | |
11452 | union devlink_param_value *init_val) | |
ec01aeb1 MS |
11453 | { |
11454 | struct devlink_param_item *param_item; | |
11455 | ||
8ba024df LR |
11456 | if (!devlink_reload_supported(devlink->ops)) |
11457 | return -EOPNOTSUPP; | |
11458 | ||
11459 | param_item = devlink_param_find_by_id(&devlink->param_list, param_id); | |
ec01aeb1 MS |
11460 | if (!param_item) |
11461 | return -EINVAL; | |
11462 | ||
11463 | if (!param_item->driverinit_value_valid || | |
11464 | !devlink_param_cmode_is_supported(param_item->param, | |
11465 | DEVLINK_PARAM_CMODE_DRIVERINIT)) | |
11466 | return -EOPNOTSUPP; | |
11467 | ||
1276534c MS |
11468 | if (param_item->param->type == DEVLINK_PARAM_TYPE_STRING) |
11469 | strcpy(init_val->vstr, param_item->driverinit_value.vstr); | |
11470 | else | |
11471 | *init_val = param_item->driverinit_value; | |
ec01aeb1 MS |
11472 | |
11473 | return 0; | |
11474 | } | |
8ba024df | 11475 | EXPORT_SYMBOL_GPL(devlink_param_driverinit_value_get); |
ffd19b9a | 11476 | |
8ba024df LR |
11477 | /** |
11478 | * devlink_param_driverinit_value_set - set value of configuration | |
11479 | * parameter for driverinit | |
11480 | * configuration mode | |
11481 | * | |
11482 | * @devlink: devlink | |
11483 | * @param_id: parameter ID | |
11484 | * @init_val: value of parameter to set for driverinit configuration mode | |
11485 | * | |
11486 | * This function should be used by the driver to set driverinit | |
11487 | * configuration mode default value. | |
11488 | */ | |
11489 | int devlink_param_driverinit_value_set(struct devlink *devlink, u32 param_id, | |
11490 | union devlink_param_value init_val) | |
5473a7bd VV |
11491 | { |
11492 | struct devlink_param_item *param_item; | |
11493 | ||
7a690ad4 LR |
11494 | ASSERT_DEVLINK_NOT_REGISTERED(devlink); |
11495 | ||
8ba024df | 11496 | param_item = devlink_param_find_by_id(&devlink->param_list, param_id); |
5473a7bd VV |
11497 | if (!param_item) |
11498 | return -EINVAL; | |
11499 | ||
11500 | if (!devlink_param_cmode_is_supported(param_item->param, | |
11501 | DEVLINK_PARAM_CMODE_DRIVERINIT)) | |
11502 | return -EOPNOTSUPP; | |
11503 | ||
11504 | if (param_item->param->type == DEVLINK_PARAM_TYPE_STRING) | |
11505 | strcpy(param_item->driverinit_value.vstr, init_val.vstr); | |
11506 | else | |
11507 | param_item->driverinit_value = init_val; | |
11508 | param_item->driverinit_value_valid = true; | |
5473a7bd VV |
11509 | return 0; |
11510 | } | |
ec01aeb1 MS |
11511 | EXPORT_SYMBOL_GPL(devlink_param_driverinit_value_set); |
11512 | ||
ea601e17 MS |
11513 | /** |
11514 | * devlink_param_value_changed - notify devlink on a parameter's value | |
11515 | * change. Should be called by the driver | |
11516 | * right after the change. | |
11517 | * | |
11518 | * @devlink: devlink | |
11519 | * @param_id: parameter ID | |
11520 | * | |
11521 | * This function should be used by the driver to notify devlink on value | |
11522 | * change, excluding driverinit configuration mode. | |
11523 | * For driverinit configuration mode driver should use the function | |
ea601e17 MS |
11524 | */ |
11525 | void devlink_param_value_changed(struct devlink *devlink, u32 param_id) | |
11526 | { | |
11527 | struct devlink_param_item *param_item; | |
11528 | ||
11529 | param_item = devlink_param_find_by_id(&devlink->param_list, param_id); | |
11530 | WARN_ON(!param_item); | |
11531 | ||
c1e5786d | 11532 | devlink_param_notify(devlink, 0, param_item, DEVLINK_CMD_PARAM_NEW); |
ea601e17 MS |
11533 | } |
11534 | EXPORT_SYMBOL_GPL(devlink_param_value_changed); | |
11535 | ||
b16ebe92 | 11536 | /** |
eb0e9fa2 | 11537 | * devl_region_create - create a new address region |
b16ebe92 | 11538 | * |
eb0e9fa2 JP |
11539 | * @devlink: devlink |
11540 | * @ops: region operations and name | |
11541 | * @region_max_snapshots: Maximum supported number of snapshots for region | |
11542 | * @region_size: size of region | |
b16ebe92 | 11543 | */ |
eb0e9fa2 JP |
11544 | struct devlink_region *devl_region_create(struct devlink *devlink, |
11545 | const struct devlink_region_ops *ops, | |
11546 | u32 region_max_snapshots, | |
11547 | u64 region_size) | |
b16ebe92 AV |
11548 | { |
11549 | struct devlink_region *region; | |
eb0e9fa2 JP |
11550 | |
11551 | devl_assert_locked(devlink); | |
b16ebe92 | 11552 | |
a0a09f6b JK |
11553 | if (WARN_ON(!ops) || WARN_ON(!ops->destructor)) |
11554 | return ERR_PTR(-EINVAL); | |
11555 | ||
eb0e9fa2 JP |
11556 | if (devlink_region_get_by_name(devlink, ops->name)) |
11557 | return ERR_PTR(-EEXIST); | |
b16ebe92 AV |
11558 | |
11559 | region = kzalloc(sizeof(*region), GFP_KERNEL); | |
eb0e9fa2 JP |
11560 | if (!region) |
11561 | return ERR_PTR(-ENOMEM); | |
b16ebe92 AV |
11562 | |
11563 | region->devlink = devlink; | |
11564 | region->max_snapshots = region_max_snapshots; | |
e8937681 | 11565 | region->ops = ops; |
b16ebe92 AV |
11566 | region->size = region_size; |
11567 | INIT_LIST_HEAD(®ion->snapshot_list); | |
2dec18ad | 11568 | mutex_init(®ion->snapshot_lock); |
b16ebe92 | 11569 | list_add_tail(®ion->list, &devlink->region_list); |
866319bb | 11570 | devlink_nl_region_notify(region, NULL, DEVLINK_CMD_REGION_NEW); |
b16ebe92 | 11571 | |
b16ebe92 | 11572 | return region; |
eb0e9fa2 JP |
11573 | } |
11574 | EXPORT_SYMBOL_GPL(devl_region_create); | |
b16ebe92 | 11575 | |
eb0e9fa2 JP |
11576 | /** |
11577 | * devlink_region_create - create a new address region | |
11578 | * | |
11579 | * @devlink: devlink | |
11580 | * @ops: region operations and name | |
11581 | * @region_max_snapshots: Maximum supported number of snapshots for region | |
11582 | * @region_size: size of region | |
11583 | * | |
11584 | * Context: Takes and release devlink->lock <mutex>. | |
11585 | */ | |
11586 | struct devlink_region * | |
11587 | devlink_region_create(struct devlink *devlink, | |
11588 | const struct devlink_region_ops *ops, | |
11589 | u32 region_max_snapshots, u64 region_size) | |
11590 | { | |
11591 | struct devlink_region *region; | |
11592 | ||
11593 | devl_lock(devlink); | |
11594 | region = devl_region_create(devlink, ops, region_max_snapshots, | |
11595 | region_size); | |
7715023a | 11596 | devl_unlock(devlink); |
eb0e9fa2 | 11597 | return region; |
b16ebe92 AV |
11598 | } |
11599 | EXPORT_SYMBOL_GPL(devlink_region_create); | |
11600 | ||
544e7c33 AL |
11601 | /** |
11602 | * devlink_port_region_create - create a new address region for a port | |
11603 | * | |
11604 | * @port: devlink port | |
11605 | * @ops: region operations and name | |
11606 | * @region_max_snapshots: Maximum supported number of snapshots for region | |
11607 | * @region_size: size of region | |
eb0e9fa2 JP |
11608 | * |
11609 | * Context: Takes and release devlink->lock <mutex>. | |
544e7c33 AL |
11610 | */ |
11611 | struct devlink_region * | |
11612 | devlink_port_region_create(struct devlink_port *port, | |
11613 | const struct devlink_port_region_ops *ops, | |
11614 | u32 region_max_snapshots, u64 region_size) | |
11615 | { | |
11616 | struct devlink *devlink = port->devlink; | |
11617 | struct devlink_region *region; | |
11618 | int err = 0; | |
11619 | ||
ae3bbc04 JP |
11620 | ASSERT_DEVLINK_PORT_INITIALIZED(port); |
11621 | ||
544e7c33 AL |
11622 | if (WARN_ON(!ops) || WARN_ON(!ops->destructor)) |
11623 | return ERR_PTR(-EINVAL); | |
11624 | ||
7715023a | 11625 | devl_lock(devlink); |
544e7c33 AL |
11626 | |
11627 | if (devlink_port_region_get_by_name(port, ops->name)) { | |
11628 | err = -EEXIST; | |
11629 | goto unlock; | |
11630 | } | |
11631 | ||
11632 | region = kzalloc(sizeof(*region), GFP_KERNEL); | |
11633 | if (!region) { | |
11634 | err = -ENOMEM; | |
11635 | goto unlock; | |
11636 | } | |
11637 | ||
11638 | region->devlink = devlink; | |
11639 | region->port = port; | |
11640 | region->max_snapshots = region_max_snapshots; | |
11641 | region->port_ops = ops; | |
11642 | region->size = region_size; | |
11643 | INIT_LIST_HEAD(®ion->snapshot_list); | |
2dec18ad | 11644 | mutex_init(®ion->snapshot_lock); |
544e7c33 AL |
11645 | list_add_tail(®ion->list, &port->region_list); |
11646 | devlink_nl_region_notify(region, NULL, DEVLINK_CMD_REGION_NEW); | |
11647 | ||
7715023a | 11648 | devl_unlock(devlink); |
544e7c33 AL |
11649 | return region; |
11650 | ||
11651 | unlock: | |
7715023a | 11652 | devl_unlock(devlink); |
544e7c33 AL |
11653 | return ERR_PTR(err); |
11654 | } | |
11655 | EXPORT_SYMBOL_GPL(devlink_port_region_create); | |
11656 | ||
b16ebe92 | 11657 | /** |
eb0e9fa2 | 11658 | * devl_region_destroy - destroy address region |
b16ebe92 | 11659 | * |
eb0e9fa2 | 11660 | * @region: devlink region to destroy |
b16ebe92 | 11661 | */ |
eb0e9fa2 | 11662 | void devl_region_destroy(struct devlink_region *region) |
b16ebe92 AV |
11663 | { |
11664 | struct devlink *devlink = region->devlink; | |
d7e52722 | 11665 | struct devlink_snapshot *snapshot, *ts; |
b16ebe92 | 11666 | |
eb0e9fa2 | 11667 | devl_assert_locked(devlink); |
d7e52722 AV |
11668 | |
11669 | /* Free all snapshots of region */ | |
11670 | list_for_each_entry_safe(snapshot, ts, ®ion->snapshot_list, list) | |
92b49822 | 11671 | devlink_region_snapshot_del(region, snapshot); |
d7e52722 | 11672 | |
b16ebe92 | 11673 | list_del(®ion->list); |
2dec18ad | 11674 | mutex_destroy(®ion->snapshot_lock); |
866319bb AV |
11675 | |
11676 | devlink_nl_region_notify(region, NULL, DEVLINK_CMD_REGION_DEL); | |
b16ebe92 AV |
11677 | kfree(region); |
11678 | } | |
eb0e9fa2 JP |
11679 | EXPORT_SYMBOL_GPL(devl_region_destroy); |
11680 | ||
11681 | /** | |
11682 | * devlink_region_destroy - destroy address region | |
11683 | * | |
11684 | * @region: devlink region to destroy | |
11685 | * | |
11686 | * Context: Takes and release devlink->lock <mutex>. | |
11687 | */ | |
11688 | void devlink_region_destroy(struct devlink_region *region) | |
11689 | { | |
11690 | struct devlink *devlink = region->devlink; | |
11691 | ||
11692 | devl_lock(devlink); | |
11693 | devl_region_destroy(region); | |
11694 | devl_unlock(devlink); | |
11695 | } | |
b16ebe92 AV |
11696 | EXPORT_SYMBOL_GPL(devlink_region_destroy); |
11697 | ||
ccadfa44 | 11698 | /** |
b0efcae5 | 11699 | * devlink_region_snapshot_id_get - get snapshot ID |
ccadfa44 AV |
11700 | * |
11701 | * This callback should be called when adding a new snapshot, | |
11702 | * Driver should use the same id for multiple snapshots taken | |
11703 | * on multiple regions at the same time/by the same trigger. | |
11704 | * | |
12102436 JK |
11705 | * The caller of this function must use devlink_region_snapshot_id_put |
11706 | * when finished creating regions using this id. | |
11707 | * | |
7ef19d3b JK |
11708 | * Returns zero on success, or a negative error code on failure. |
11709 | * | |
ccadfa44 | 11710 | * @devlink: devlink |
7ef19d3b | 11711 | * @id: storage to return id |
ccadfa44 | 11712 | */ |
7ef19d3b | 11713 | int devlink_region_snapshot_id_get(struct devlink *devlink, u32 *id) |
ccadfa44 | 11714 | { |
5502e871 | 11715 | return __devlink_region_snapshot_id_get(devlink, id); |
ccadfa44 | 11716 | } |
b0efcae5 | 11717 | EXPORT_SYMBOL_GPL(devlink_region_snapshot_id_get); |
ccadfa44 | 11718 | |
12102436 JK |
11719 | /** |
11720 | * devlink_region_snapshot_id_put - put snapshot ID reference | |
11721 | * | |
11722 | * This should be called by a driver after finishing creating snapshots | |
11723 | * with an id. Doing so ensures that the ID can later be released in the | |
11724 | * event that all snapshots using it have been destroyed. | |
11725 | * | |
11726 | * @devlink: devlink | |
11727 | * @id: id to release reference on | |
11728 | */ | |
11729 | void devlink_region_snapshot_id_put(struct devlink *devlink, u32 id) | |
11730 | { | |
12102436 | 11731 | __devlink_snapshot_id_decrement(devlink, id); |
12102436 JK |
11732 | } |
11733 | EXPORT_SYMBOL_GPL(devlink_region_snapshot_id_put); | |
11734 | ||
d7e52722 AV |
11735 | /** |
11736 | * devlink_region_snapshot_create - create a new snapshot | |
11737 | * This will add a new snapshot of a region. The snapshot | |
11738 | * will be stored on the region struct and can be accessed | |
6d82f67e | 11739 | * from devlink. This is useful for future analyses of snapshots. |
d7e52722 AV |
11740 | * Multiple snapshots can be created on a region. |
11741 | * The @snapshot_id should be obtained using the getter function. | |
11742 | * | |
eeaadd82 | 11743 | * @region: devlink region of the snapshot |
d7e52722 AV |
11744 | * @data: snapshot data |
11745 | * @snapshot_id: snapshot id to be created | |
d7e52722 | 11746 | */ |
3a5e5234 | 11747 | int devlink_region_snapshot_create(struct devlink_region *region, |
a0a09f6b | 11748 | u8 *data, u32 snapshot_id) |
d7e52722 | 11749 | { |
d7e52722 AV |
11750 | int err; |
11751 | ||
2dec18ad | 11752 | mutex_lock(®ion->snapshot_lock); |
cf80faee | 11753 | err = __devlink_region_snapshot_create(region, data, snapshot_id); |
2dec18ad | 11754 | mutex_unlock(®ion->snapshot_lock); |
d7e52722 AV |
11755 | return err; |
11756 | } | |
11757 | EXPORT_SYMBOL_GPL(devlink_region_snapshot_create); | |
11758 | ||
0f420b6c IS |
11759 | #define DEVLINK_TRAP(_id, _type) \ |
11760 | { \ | |
11761 | .type = DEVLINK_TRAP_TYPE_##_type, \ | |
11762 | .id = DEVLINK_TRAP_GENERIC_ID_##_id, \ | |
11763 | .name = DEVLINK_TRAP_GENERIC_NAME_##_id, \ | |
11764 | } | |
11765 | ||
11766 | static const struct devlink_trap devlink_trap_generic[] = { | |
391203ab IS |
11767 | DEVLINK_TRAP(SMAC_MC, DROP), |
11768 | DEVLINK_TRAP(VLAN_TAG_MISMATCH, DROP), | |
11769 | DEVLINK_TRAP(INGRESS_VLAN_FILTER, DROP), | |
11770 | DEVLINK_TRAP(INGRESS_STP_FILTER, DROP), | |
11771 | DEVLINK_TRAP(EMPTY_TX_LIST, DROP), | |
11772 | DEVLINK_TRAP(PORT_LOOPBACK_FILTER, DROP), | |
11773 | DEVLINK_TRAP(BLACKHOLE_ROUTE, DROP), | |
11774 | DEVLINK_TRAP(TTL_ERROR, EXCEPTION), | |
11775 | DEVLINK_TRAP(TAIL_DROP, DROP), | |
6896cc4d AC |
11776 | DEVLINK_TRAP(NON_IP_PACKET, DROP), |
11777 | DEVLINK_TRAP(UC_DIP_MC_DMAC, DROP), | |
11778 | DEVLINK_TRAP(DIP_LB, DROP), | |
11779 | DEVLINK_TRAP(SIP_MC, DROP), | |
11780 | DEVLINK_TRAP(SIP_LB, DROP), | |
11781 | DEVLINK_TRAP(CORRUPTED_IP_HDR, DROP), | |
11782 | DEVLINK_TRAP(IPV4_SIP_BC, DROP), | |
11783 | DEVLINK_TRAP(IPV6_MC_DIP_RESERVED_SCOPE, DROP), | |
11784 | DEVLINK_TRAP(IPV6_MC_DIP_INTERFACE_LOCAL_SCOPE, DROP), | |
3b063ae5 AC |
11785 | DEVLINK_TRAP(MTU_ERROR, EXCEPTION), |
11786 | DEVLINK_TRAP(UNRESOLVED_NEIGH, EXCEPTION), | |
11787 | DEVLINK_TRAP(RPF, EXCEPTION), | |
11788 | DEVLINK_TRAP(REJECT_ROUTE, EXCEPTION), | |
11789 | DEVLINK_TRAP(IPV4_LPM_UNICAST_MISS, EXCEPTION), | |
11790 | DEVLINK_TRAP(IPV6_LPM_UNICAST_MISS, EXCEPTION), | |
95f0ead8 | 11791 | DEVLINK_TRAP(NON_ROUTABLE, DROP), |
13c056ec | 11792 | DEVLINK_TRAP(DECAP_ERROR, EXCEPTION), |
c3cae491 | 11793 | DEVLINK_TRAP(OVERLAY_SMAC_MC, DROP), |
ecd942a0 JP |
11794 | DEVLINK_TRAP(INGRESS_FLOW_ACTION_DROP, DROP), |
11795 | DEVLINK_TRAP(EGRESS_FLOW_ACTION_DROP, DROP), | |
515eac67 IS |
11796 | DEVLINK_TRAP(STP, CONTROL), |
11797 | DEVLINK_TRAP(LACP, CONTROL), | |
11798 | DEVLINK_TRAP(LLDP, CONTROL), | |
11799 | DEVLINK_TRAP(IGMP_QUERY, CONTROL), | |
11800 | DEVLINK_TRAP(IGMP_V1_REPORT, CONTROL), | |
11801 | DEVLINK_TRAP(IGMP_V2_REPORT, CONTROL), | |
11802 | DEVLINK_TRAP(IGMP_V3_REPORT, CONTROL), | |
11803 | DEVLINK_TRAP(IGMP_V2_LEAVE, CONTROL), | |
11804 | DEVLINK_TRAP(MLD_QUERY, CONTROL), | |
11805 | DEVLINK_TRAP(MLD_V1_REPORT, CONTROL), | |
11806 | DEVLINK_TRAP(MLD_V2_REPORT, CONTROL), | |
11807 | DEVLINK_TRAP(MLD_V1_DONE, CONTROL), | |
d77cfd16 IS |
11808 | DEVLINK_TRAP(IPV4_DHCP, CONTROL), |
11809 | DEVLINK_TRAP(IPV6_DHCP, CONTROL), | |
11810 | DEVLINK_TRAP(ARP_REQUEST, CONTROL), | |
11811 | DEVLINK_TRAP(ARP_RESPONSE, CONTROL), | |
11812 | DEVLINK_TRAP(ARP_OVERLAY, CONTROL), | |
11813 | DEVLINK_TRAP(IPV6_NEIGH_SOLICIT, CONTROL), | |
11814 | DEVLINK_TRAP(IPV6_NEIGH_ADVERT, CONTROL), | |
11815 | DEVLINK_TRAP(IPV4_BFD, CONTROL), | |
11816 | DEVLINK_TRAP(IPV6_BFD, CONTROL), | |
11817 | DEVLINK_TRAP(IPV4_OSPF, CONTROL), | |
11818 | DEVLINK_TRAP(IPV6_OSPF, CONTROL), | |
11819 | DEVLINK_TRAP(IPV4_BGP, CONTROL), | |
11820 | DEVLINK_TRAP(IPV6_BGP, CONTROL), | |
11821 | DEVLINK_TRAP(IPV4_VRRP, CONTROL), | |
11822 | DEVLINK_TRAP(IPV6_VRRP, CONTROL), | |
11823 | DEVLINK_TRAP(IPV4_PIM, CONTROL), | |
11824 | DEVLINK_TRAP(IPV6_PIM, CONTROL), | |
11825 | DEVLINK_TRAP(UC_LB, CONTROL), | |
11826 | DEVLINK_TRAP(LOCAL_ROUTE, CONTROL), | |
11827 | DEVLINK_TRAP(EXTERNAL_ROUTE, CONTROL), | |
11828 | DEVLINK_TRAP(IPV6_UC_DIP_LINK_LOCAL_SCOPE, CONTROL), | |
11829 | DEVLINK_TRAP(IPV6_DIP_ALL_NODES, CONTROL), | |
11830 | DEVLINK_TRAP(IPV6_DIP_ALL_ROUTERS, CONTROL), | |
11831 | DEVLINK_TRAP(IPV6_ROUTER_SOLICIT, CONTROL), | |
11832 | DEVLINK_TRAP(IPV6_ROUTER_ADVERT, CONTROL), | |
11833 | DEVLINK_TRAP(IPV6_REDIRECT, CONTROL), | |
11834 | DEVLINK_TRAP(IPV4_ROUTER_ALERT, CONTROL), | |
11835 | DEVLINK_TRAP(IPV6_ROUTER_ALERT, CONTROL), | |
11836 | DEVLINK_TRAP(PTP_EVENT, CONTROL), | |
11837 | DEVLINK_TRAP(PTP_GENERAL, CONTROL), | |
5eb18a2b IS |
11838 | DEVLINK_TRAP(FLOW_ACTION_SAMPLE, CONTROL), |
11839 | DEVLINK_TRAP(FLOW_ACTION_TRAP, CONTROL), | |
08e335f6 | 11840 | DEVLINK_TRAP(EARLY_DROP, DROP), |
10c24eb2 IC |
11841 | DEVLINK_TRAP(VXLAN_PARSING, DROP), |
11842 | DEVLINK_TRAP(LLC_SNAP_PARSING, DROP), | |
11843 | DEVLINK_TRAP(VLAN_PARSING, DROP), | |
11844 | DEVLINK_TRAP(PPPOE_PPP_PARSING, DROP), | |
11845 | DEVLINK_TRAP(MPLS_PARSING, DROP), | |
11846 | DEVLINK_TRAP(ARP_PARSING, DROP), | |
11847 | DEVLINK_TRAP(IP_1_PARSING, DROP), | |
11848 | DEVLINK_TRAP(IP_N_PARSING, DROP), | |
11849 | DEVLINK_TRAP(GRE_PARSING, DROP), | |
11850 | DEVLINK_TRAP(UDP_PARSING, DROP), | |
11851 | DEVLINK_TRAP(TCP_PARSING, DROP), | |
11852 | DEVLINK_TRAP(IPSEC_PARSING, DROP), | |
11853 | DEVLINK_TRAP(SCTP_PARSING, DROP), | |
11854 | DEVLINK_TRAP(DCCP_PARSING, DROP), | |
11855 | DEVLINK_TRAP(GTP_PARSING, DROP), | |
11856 | DEVLINK_TRAP(ESP_PARSING, DROP), | |
f0a5013e | 11857 | DEVLINK_TRAP(BLACKHOLE_NEXTHOP, DROP), |
e78ab164 | 11858 | DEVLINK_TRAP(DMAC_FILTER, DROP), |
2640a82b IS |
11859 | DEVLINK_TRAP(EAPOL, CONTROL), |
11860 | DEVLINK_TRAP(LOCKED_PORT, DROP), | |
0f420b6c IS |
11861 | }; |
11862 | ||
11863 | #define DEVLINK_TRAP_GROUP(_id) \ | |
11864 | { \ | |
11865 | .id = DEVLINK_TRAP_GROUP_GENERIC_ID_##_id, \ | |
11866 | .name = DEVLINK_TRAP_GROUP_GENERIC_NAME_##_id, \ | |
11867 | } | |
11868 | ||
11869 | static const struct devlink_trap_group devlink_trap_group_generic[] = { | |
391203ab IS |
11870 | DEVLINK_TRAP_GROUP(L2_DROPS), |
11871 | DEVLINK_TRAP_GROUP(L3_DROPS), | |
678eb199 | 11872 | DEVLINK_TRAP_GROUP(L3_EXCEPTIONS), |
391203ab | 11873 | DEVLINK_TRAP_GROUP(BUFFER_DROPS), |
13c056ec | 11874 | DEVLINK_TRAP_GROUP(TUNNEL_DROPS), |
ecd942a0 | 11875 | DEVLINK_TRAP_GROUP(ACL_DROPS), |
515eac67 IS |
11876 | DEVLINK_TRAP_GROUP(STP), |
11877 | DEVLINK_TRAP_GROUP(LACP), | |
11878 | DEVLINK_TRAP_GROUP(LLDP), | |
11879 | DEVLINK_TRAP_GROUP(MC_SNOOPING), | |
d77cfd16 IS |
11880 | DEVLINK_TRAP_GROUP(DHCP), |
11881 | DEVLINK_TRAP_GROUP(NEIGH_DISCOVERY), | |
11882 | DEVLINK_TRAP_GROUP(BFD), | |
11883 | DEVLINK_TRAP_GROUP(OSPF), | |
11884 | DEVLINK_TRAP_GROUP(BGP), | |
11885 | DEVLINK_TRAP_GROUP(VRRP), | |
11886 | DEVLINK_TRAP_GROUP(PIM), | |
11887 | DEVLINK_TRAP_GROUP(UC_LB), | |
11888 | DEVLINK_TRAP_GROUP(LOCAL_DELIVERY), | |
ec4f5b36 | 11889 | DEVLINK_TRAP_GROUP(EXTERNAL_DELIVERY), |
d77cfd16 IS |
11890 | DEVLINK_TRAP_GROUP(IPV6), |
11891 | DEVLINK_TRAP_GROUP(PTP_EVENT), | |
11892 | DEVLINK_TRAP_GROUP(PTP_GENERAL), | |
5eb18a2b IS |
11893 | DEVLINK_TRAP_GROUP(ACL_SAMPLE), |
11894 | DEVLINK_TRAP_GROUP(ACL_TRAP), | |
10c24eb2 | 11895 | DEVLINK_TRAP_GROUP(PARSER_ERROR_DROPS), |
2640a82b | 11896 | DEVLINK_TRAP_GROUP(EAPOL), |
0f420b6c IS |
11897 | }; |
11898 | ||
11899 | static int devlink_trap_generic_verify(const struct devlink_trap *trap) | |
11900 | { | |
11901 | if (trap->id > DEVLINK_TRAP_GENERIC_ID_MAX) | |
11902 | return -EINVAL; | |
11903 | ||
11904 | if (strcmp(trap->name, devlink_trap_generic[trap->id].name)) | |
11905 | return -EINVAL; | |
11906 | ||
11907 | if (trap->type != devlink_trap_generic[trap->id].type) | |
11908 | return -EINVAL; | |
11909 | ||
11910 | return 0; | |
11911 | } | |
11912 | ||
11913 | static int devlink_trap_driver_verify(const struct devlink_trap *trap) | |
11914 | { | |
11915 | int i; | |
11916 | ||
11917 | if (trap->id <= DEVLINK_TRAP_GENERIC_ID_MAX) | |
11918 | return -EINVAL; | |
11919 | ||
11920 | for (i = 0; i < ARRAY_SIZE(devlink_trap_generic); i++) { | |
11921 | if (!strcmp(trap->name, devlink_trap_generic[i].name)) | |
11922 | return -EEXIST; | |
11923 | } | |
11924 | ||
11925 | return 0; | |
11926 | } | |
11927 | ||
11928 | static int devlink_trap_verify(const struct devlink_trap *trap) | |
11929 | { | |
107f1678 | 11930 | if (!trap || !trap->name) |
0f420b6c IS |
11931 | return -EINVAL; |
11932 | ||
11933 | if (trap->generic) | |
11934 | return devlink_trap_generic_verify(trap); | |
11935 | else | |
11936 | return devlink_trap_driver_verify(trap); | |
11937 | } | |
11938 | ||
11939 | static int | |
11940 | devlink_trap_group_generic_verify(const struct devlink_trap_group *group) | |
11941 | { | |
11942 | if (group->id > DEVLINK_TRAP_GROUP_GENERIC_ID_MAX) | |
11943 | return -EINVAL; | |
11944 | ||
11945 | if (strcmp(group->name, devlink_trap_group_generic[group->id].name)) | |
11946 | return -EINVAL; | |
11947 | ||
11948 | return 0; | |
11949 | } | |
11950 | ||
11951 | static int | |
11952 | devlink_trap_group_driver_verify(const struct devlink_trap_group *group) | |
11953 | { | |
11954 | int i; | |
11955 | ||
11956 | if (group->id <= DEVLINK_TRAP_GROUP_GENERIC_ID_MAX) | |
11957 | return -EINVAL; | |
11958 | ||
11959 | for (i = 0; i < ARRAY_SIZE(devlink_trap_group_generic); i++) { | |
11960 | if (!strcmp(group->name, devlink_trap_group_generic[i].name)) | |
11961 | return -EEXIST; | |
11962 | } | |
11963 | ||
11964 | return 0; | |
11965 | } | |
11966 | ||
11967 | static int devlink_trap_group_verify(const struct devlink_trap_group *group) | |
11968 | { | |
11969 | if (group->generic) | |
11970 | return devlink_trap_group_generic_verify(group); | |
11971 | else | |
11972 | return devlink_trap_group_driver_verify(group); | |
11973 | } | |
11974 | ||
11975 | static void | |
11976 | devlink_trap_group_notify(struct devlink *devlink, | |
11977 | const struct devlink_trap_group_item *group_item, | |
11978 | enum devlink_command cmd) | |
11979 | { | |
11980 | struct sk_buff *msg; | |
11981 | int err; | |
11982 | ||
11983 | WARN_ON_ONCE(cmd != DEVLINK_CMD_TRAP_GROUP_NEW && | |
11984 | cmd != DEVLINK_CMD_TRAP_GROUP_DEL); | |
fb9d19c2 LR |
11985 | if (!xa_get_mark(&devlinks, devlink->index, DEVLINK_REGISTERED)) |
11986 | return; | |
0f420b6c IS |
11987 | |
11988 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
11989 | if (!msg) | |
11990 | return; | |
11991 | ||
11992 | err = devlink_nl_trap_group_fill(msg, devlink, group_item, cmd, 0, 0, | |
11993 | 0); | |
11994 | if (err) { | |
11995 | nlmsg_free(msg); | |
11996 | return; | |
11997 | } | |
11998 | ||
11999 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), | |
12000 | msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
12001 | } | |
12002 | ||
0f420b6c IS |
12003 | static int |
12004 | devlink_trap_item_group_link(struct devlink *devlink, | |
12005 | struct devlink_trap_item *trap_item) | |
12006 | { | |
107f1678 | 12007 | u16 group_id = trap_item->trap->init_group_id; |
0f420b6c IS |
12008 | struct devlink_trap_group_item *group_item; |
12009 | ||
107f1678 | 12010 | group_item = devlink_trap_group_item_lookup_by_id(devlink, group_id); |
a09b37fc IS |
12011 | if (WARN_ON_ONCE(!group_item)) |
12012 | return -EINVAL; | |
0f420b6c IS |
12013 | |
12014 | trap_item->group_item = group_item; | |
12015 | ||
12016 | return 0; | |
12017 | } | |
12018 | ||
0f420b6c IS |
12019 | static void devlink_trap_notify(struct devlink *devlink, |
12020 | const struct devlink_trap_item *trap_item, | |
12021 | enum devlink_command cmd) | |
12022 | { | |
12023 | struct sk_buff *msg; | |
12024 | int err; | |
12025 | ||
12026 | WARN_ON_ONCE(cmd != DEVLINK_CMD_TRAP_NEW && | |
12027 | cmd != DEVLINK_CMD_TRAP_DEL); | |
cf530217 LR |
12028 | if (!xa_get_mark(&devlinks, devlink->index, DEVLINK_REGISTERED)) |
12029 | return; | |
0f420b6c IS |
12030 | |
12031 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
12032 | if (!msg) | |
12033 | return; | |
12034 | ||
12035 | err = devlink_nl_trap_fill(msg, devlink, trap_item, cmd, 0, 0, 0); | |
12036 | if (err) { | |
12037 | nlmsg_free(msg); | |
12038 | return; | |
12039 | } | |
12040 | ||
12041 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), | |
12042 | msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
12043 | } | |
12044 | ||
12045 | static int | |
12046 | devlink_trap_register(struct devlink *devlink, | |
12047 | const struct devlink_trap *trap, void *priv) | |
12048 | { | |
12049 | struct devlink_trap_item *trap_item; | |
12050 | int err; | |
12051 | ||
12052 | if (devlink_trap_item_lookup(devlink, trap->name)) | |
12053 | return -EEXIST; | |
12054 | ||
12055 | trap_item = kzalloc(sizeof(*trap_item), GFP_KERNEL); | |
12056 | if (!trap_item) | |
12057 | return -ENOMEM; | |
12058 | ||
12059 | trap_item->stats = netdev_alloc_pcpu_stats(struct devlink_stats); | |
12060 | if (!trap_item->stats) { | |
12061 | err = -ENOMEM; | |
12062 | goto err_stats_alloc; | |
12063 | } | |
12064 | ||
12065 | trap_item->trap = trap; | |
12066 | trap_item->action = trap->init_action; | |
12067 | trap_item->priv = priv; | |
12068 | ||
12069 | err = devlink_trap_item_group_link(devlink, trap_item); | |
12070 | if (err) | |
12071 | goto err_group_link; | |
12072 | ||
12073 | err = devlink->ops->trap_init(devlink, trap, trap_item); | |
12074 | if (err) | |
12075 | goto err_trap_init; | |
12076 | ||
12077 | list_add_tail(&trap_item->list, &devlink->trap_list); | |
12078 | devlink_trap_notify(devlink, trap_item, DEVLINK_CMD_TRAP_NEW); | |
12079 | ||
12080 | return 0; | |
12081 | ||
12082 | err_trap_init: | |
0f420b6c IS |
12083 | err_group_link: |
12084 | free_percpu(trap_item->stats); | |
12085 | err_stats_alloc: | |
12086 | kfree(trap_item); | |
12087 | return err; | |
12088 | } | |
12089 | ||
12090 | static void devlink_trap_unregister(struct devlink *devlink, | |
12091 | const struct devlink_trap *trap) | |
12092 | { | |
12093 | struct devlink_trap_item *trap_item; | |
12094 | ||
12095 | trap_item = devlink_trap_item_lookup(devlink, trap->name); | |
12096 | if (WARN_ON_ONCE(!trap_item)) | |
12097 | return; | |
12098 | ||
12099 | devlink_trap_notify(devlink, trap_item, DEVLINK_CMD_TRAP_DEL); | |
12100 | list_del(&trap_item->list); | |
12101 | if (devlink->ops->trap_fini) | |
12102 | devlink->ops->trap_fini(devlink, trap, trap_item); | |
0f420b6c IS |
12103 | free_percpu(trap_item->stats); |
12104 | kfree(trap_item); | |
12105 | } | |
12106 | ||
12107 | static void devlink_trap_disable(struct devlink *devlink, | |
12108 | const struct devlink_trap *trap) | |
12109 | { | |
12110 | struct devlink_trap_item *trap_item; | |
12111 | ||
12112 | trap_item = devlink_trap_item_lookup(devlink, trap->name); | |
12113 | if (WARN_ON_ONCE(!trap_item)) | |
12114 | return; | |
12115 | ||
c88e11e0 IS |
12116 | devlink->ops->trap_action_set(devlink, trap, DEVLINK_TRAP_ACTION_DROP, |
12117 | NULL); | |
0f420b6c IS |
12118 | trap_item->action = DEVLINK_TRAP_ACTION_DROP; |
12119 | } | |
12120 | ||
12121 | /** | |
852e85a7 | 12122 | * devl_traps_register - Register packet traps with devlink. |
0f420b6c IS |
12123 | * @devlink: devlink. |
12124 | * @traps: Packet traps. | |
12125 | * @traps_count: Count of provided packet traps. | |
12126 | * @priv: Driver private information. | |
12127 | * | |
12128 | * Return: Non-zero value on failure. | |
12129 | */ | |
852e85a7 JP |
12130 | int devl_traps_register(struct devlink *devlink, |
12131 | const struct devlink_trap *traps, | |
12132 | size_t traps_count, void *priv) | |
0f420b6c IS |
12133 | { |
12134 | int i, err; | |
12135 | ||
12136 | if (!devlink->ops->trap_init || !devlink->ops->trap_action_set) | |
12137 | return -EINVAL; | |
12138 | ||
852e85a7 | 12139 | devl_assert_locked(devlink); |
0f420b6c IS |
12140 | for (i = 0; i < traps_count; i++) { |
12141 | const struct devlink_trap *trap = &traps[i]; | |
12142 | ||
12143 | err = devlink_trap_verify(trap); | |
12144 | if (err) | |
12145 | goto err_trap_verify; | |
12146 | ||
12147 | err = devlink_trap_register(devlink, trap, priv); | |
12148 | if (err) | |
12149 | goto err_trap_register; | |
12150 | } | |
0f420b6c IS |
12151 | |
12152 | return 0; | |
12153 | ||
12154 | err_trap_register: | |
12155 | err_trap_verify: | |
12156 | for (i--; i >= 0; i--) | |
12157 | devlink_trap_unregister(devlink, &traps[i]); | |
852e85a7 JP |
12158 | return err; |
12159 | } | |
12160 | EXPORT_SYMBOL_GPL(devl_traps_register); | |
12161 | ||
12162 | /** | |
12163 | * devlink_traps_register - Register packet traps with devlink. | |
12164 | * @devlink: devlink. | |
12165 | * @traps: Packet traps. | |
12166 | * @traps_count: Count of provided packet traps. | |
12167 | * @priv: Driver private information. | |
12168 | * | |
12169 | * Context: Takes and release devlink->lock <mutex>. | |
12170 | * | |
12171 | * Return: Non-zero value on failure. | |
12172 | */ | |
12173 | int devlink_traps_register(struct devlink *devlink, | |
12174 | const struct devlink_trap *traps, | |
12175 | size_t traps_count, void *priv) | |
12176 | { | |
12177 | int err; | |
12178 | ||
12179 | devl_lock(devlink); | |
12180 | err = devl_traps_register(devlink, traps, traps_count, priv); | |
7715023a | 12181 | devl_unlock(devlink); |
0f420b6c IS |
12182 | return err; |
12183 | } | |
12184 | EXPORT_SYMBOL_GPL(devlink_traps_register); | |
12185 | ||
12186 | /** | |
852e85a7 | 12187 | * devl_traps_unregister - Unregister packet traps from devlink. |
0f420b6c IS |
12188 | * @devlink: devlink. |
12189 | * @traps: Packet traps. | |
12190 | * @traps_count: Count of provided packet traps. | |
12191 | */ | |
852e85a7 JP |
12192 | void devl_traps_unregister(struct devlink *devlink, |
12193 | const struct devlink_trap *traps, | |
12194 | size_t traps_count) | |
0f420b6c IS |
12195 | { |
12196 | int i; | |
12197 | ||
852e85a7 | 12198 | devl_assert_locked(devlink); |
0f420b6c IS |
12199 | /* Make sure we do not have any packets in-flight while unregistering |
12200 | * traps by disabling all of them and waiting for a grace period. | |
12201 | */ | |
12202 | for (i = traps_count - 1; i >= 0; i--) | |
12203 | devlink_trap_disable(devlink, &traps[i]); | |
12204 | synchronize_rcu(); | |
12205 | for (i = traps_count - 1; i >= 0; i--) | |
12206 | devlink_trap_unregister(devlink, &traps[i]); | |
852e85a7 JP |
12207 | } |
12208 | EXPORT_SYMBOL_GPL(devl_traps_unregister); | |
12209 | ||
12210 | /** | |
12211 | * devlink_traps_unregister - Unregister packet traps from devlink. | |
12212 | * @devlink: devlink. | |
12213 | * @traps: Packet traps. | |
12214 | * @traps_count: Count of provided packet traps. | |
12215 | * | |
12216 | * Context: Takes and release devlink->lock <mutex>. | |
12217 | */ | |
12218 | void devlink_traps_unregister(struct devlink *devlink, | |
12219 | const struct devlink_trap *traps, | |
12220 | size_t traps_count) | |
12221 | { | |
12222 | devl_lock(devlink); | |
12223 | devl_traps_unregister(devlink, traps, traps_count); | |
7715023a | 12224 | devl_unlock(devlink); |
0f420b6c IS |
12225 | } |
12226 | EXPORT_SYMBOL_GPL(devlink_traps_unregister); | |
12227 | ||
12228 | static void | |
12229 | devlink_trap_stats_update(struct devlink_stats __percpu *trap_stats, | |
12230 | size_t skb_len) | |
12231 | { | |
12232 | struct devlink_stats *stats; | |
12233 | ||
12234 | stats = this_cpu_ptr(trap_stats); | |
12235 | u64_stats_update_begin(&stats->syncp); | |
958751e0 ED |
12236 | u64_stats_add(&stats->rx_bytes, skb_len); |
12237 | u64_stats_inc(&stats->rx_packets); | |
0f420b6c IS |
12238 | u64_stats_update_end(&stats->syncp); |
12239 | } | |
12240 | ||
5b88823b IS |
12241 | static void |
12242 | devlink_trap_report_metadata_set(struct devlink_trap_metadata *metadata, | |
12243 | const struct devlink_trap_item *trap_item, | |
12244 | struct devlink_port *in_devlink_port, | |
12245 | const struct flow_action_cookie *fa_cookie) | |
12246 | { | |
12247 | metadata->trap_name = trap_item->trap->name; | |
12248 | metadata->trap_group_name = trap_item->group_item->group->name; | |
12249 | metadata->fa_cookie = fa_cookie; | |
93e15596 | 12250 | metadata->trap_type = trap_item->trap->type; |
5b88823b IS |
12251 | |
12252 | spin_lock(&in_devlink_port->type_lock); | |
12253 | if (in_devlink_port->type == DEVLINK_PORT_TYPE_ETH) | |
3830c571 | 12254 | metadata->input_dev = in_devlink_port->type_eth.netdev; |
5b88823b IS |
12255 | spin_unlock(&in_devlink_port->type_lock); |
12256 | } | |
12257 | ||
0f420b6c IS |
12258 | /** |
12259 | * devlink_trap_report - Report trapped packet to drop monitor. | |
12260 | * @devlink: devlink. | |
12261 | * @skb: Trapped packet. | |
12262 | * @trap_ctx: Trap context. | |
12263 | * @in_devlink_port: Input devlink port. | |
5a2e106c | 12264 | * @fa_cookie: Flow action cookie. Could be NULL. |
0f420b6c IS |
12265 | */ |
12266 | void devlink_trap_report(struct devlink *devlink, struct sk_buff *skb, | |
5a2e106c JP |
12267 | void *trap_ctx, struct devlink_port *in_devlink_port, |
12268 | const struct flow_action_cookie *fa_cookie) | |
12269 | ||
0f420b6c IS |
12270 | { |
12271 | struct devlink_trap_item *trap_item = trap_ctx; | |
0f420b6c IS |
12272 | |
12273 | devlink_trap_stats_update(trap_item->stats, skb->len); | |
12274 | devlink_trap_stats_update(trap_item->group_item->stats, skb->len); | |
12275 | ||
5b88823b IS |
12276 | if (trace_devlink_trap_report_enabled()) { |
12277 | struct devlink_trap_metadata metadata = {}; | |
12278 | ||
12279 | devlink_trap_report_metadata_set(&metadata, trap_item, | |
12280 | in_devlink_port, fa_cookie); | |
12281 | trace_devlink_trap_report(devlink, skb, &metadata); | |
12282 | } | |
0f420b6c IS |
12283 | } |
12284 | EXPORT_SYMBOL_GPL(devlink_trap_report); | |
12285 | ||
12286 | /** | |
12287 | * devlink_trap_ctx_priv - Trap context to driver private information. | |
12288 | * @trap_ctx: Trap context. | |
12289 | * | |
12290 | * Return: Driver private information passed during registration. | |
12291 | */ | |
12292 | void *devlink_trap_ctx_priv(void *trap_ctx) | |
12293 | { | |
12294 | struct devlink_trap_item *trap_item = trap_ctx; | |
12295 | ||
12296 | return trap_item->priv; | |
12297 | } | |
12298 | EXPORT_SYMBOL_GPL(devlink_trap_ctx_priv); | |
12299 | ||
f9f54392 IS |
12300 | static int |
12301 | devlink_trap_group_item_policer_link(struct devlink *devlink, | |
12302 | struct devlink_trap_group_item *group_item) | |
12303 | { | |
12304 | u32 policer_id = group_item->group->init_policer_id; | |
12305 | struct devlink_trap_policer_item *policer_item; | |
12306 | ||
12307 | if (policer_id == 0) | |
12308 | return 0; | |
12309 | ||
12310 | policer_item = devlink_trap_policer_item_lookup(devlink, policer_id); | |
12311 | if (WARN_ON_ONCE(!policer_item)) | |
12312 | return -EINVAL; | |
12313 | ||
12314 | group_item->policer_item = policer_item; | |
12315 | ||
12316 | return 0; | |
12317 | } | |
12318 | ||
95ad9555 IS |
12319 | static int |
12320 | devlink_trap_group_register(struct devlink *devlink, | |
12321 | const struct devlink_trap_group *group) | |
12322 | { | |
12323 | struct devlink_trap_group_item *group_item; | |
12324 | int err; | |
12325 | ||
12326 | if (devlink_trap_group_item_lookup(devlink, group->name)) | |
12327 | return -EEXIST; | |
12328 | ||
12329 | group_item = kzalloc(sizeof(*group_item), GFP_KERNEL); | |
12330 | if (!group_item) | |
12331 | return -ENOMEM; | |
12332 | ||
12333 | group_item->stats = netdev_alloc_pcpu_stats(struct devlink_stats); | |
12334 | if (!group_item->stats) { | |
12335 | err = -ENOMEM; | |
12336 | goto err_stats_alloc; | |
12337 | } | |
12338 | ||
12339 | group_item->group = group; | |
95ad9555 | 12340 | |
f9f54392 IS |
12341 | err = devlink_trap_group_item_policer_link(devlink, group_item); |
12342 | if (err) | |
12343 | goto err_policer_link; | |
12344 | ||
95ad9555 IS |
12345 | if (devlink->ops->trap_group_init) { |
12346 | err = devlink->ops->trap_group_init(devlink, group); | |
12347 | if (err) | |
12348 | goto err_group_init; | |
12349 | } | |
12350 | ||
12351 | list_add_tail(&group_item->list, &devlink->trap_group_list); | |
fb9d19c2 LR |
12352 | devlink_trap_group_notify(devlink, group_item, |
12353 | DEVLINK_CMD_TRAP_GROUP_NEW); | |
12354 | ||
95ad9555 IS |
12355 | return 0; |
12356 | ||
12357 | err_group_init: | |
f9f54392 | 12358 | err_policer_link: |
95ad9555 IS |
12359 | free_percpu(group_item->stats); |
12360 | err_stats_alloc: | |
12361 | kfree(group_item); | |
12362 | return err; | |
12363 | } | |
12364 | ||
12365 | static void | |
12366 | devlink_trap_group_unregister(struct devlink *devlink, | |
12367 | const struct devlink_trap_group *group) | |
12368 | { | |
12369 | struct devlink_trap_group_item *group_item; | |
12370 | ||
12371 | group_item = devlink_trap_group_item_lookup(devlink, group->name); | |
12372 | if (WARN_ON_ONCE(!group_item)) | |
12373 | return; | |
12374 | ||
fb9d19c2 LR |
12375 | devlink_trap_group_notify(devlink, group_item, |
12376 | DEVLINK_CMD_TRAP_GROUP_DEL); | |
95ad9555 IS |
12377 | list_del(&group_item->list); |
12378 | free_percpu(group_item->stats); | |
12379 | kfree(group_item); | |
12380 | } | |
12381 | ||
12382 | /** | |
852e85a7 | 12383 | * devl_trap_groups_register - Register packet trap groups with devlink. |
95ad9555 IS |
12384 | * @devlink: devlink. |
12385 | * @groups: Packet trap groups. | |
12386 | * @groups_count: Count of provided packet trap groups. | |
12387 | * | |
12388 | * Return: Non-zero value on failure. | |
12389 | */ | |
852e85a7 JP |
12390 | int devl_trap_groups_register(struct devlink *devlink, |
12391 | const struct devlink_trap_group *groups, | |
12392 | size_t groups_count) | |
95ad9555 IS |
12393 | { |
12394 | int i, err; | |
12395 | ||
852e85a7 | 12396 | devl_assert_locked(devlink); |
95ad9555 IS |
12397 | for (i = 0; i < groups_count; i++) { |
12398 | const struct devlink_trap_group *group = &groups[i]; | |
12399 | ||
12400 | err = devlink_trap_group_verify(group); | |
12401 | if (err) | |
12402 | goto err_trap_group_verify; | |
12403 | ||
12404 | err = devlink_trap_group_register(devlink, group); | |
12405 | if (err) | |
12406 | goto err_trap_group_register; | |
12407 | } | |
95ad9555 IS |
12408 | |
12409 | return 0; | |
12410 | ||
12411 | err_trap_group_register: | |
12412 | err_trap_group_verify: | |
12413 | for (i--; i >= 0; i--) | |
12414 | devlink_trap_group_unregister(devlink, &groups[i]); | |
852e85a7 JP |
12415 | return err; |
12416 | } | |
12417 | EXPORT_SYMBOL_GPL(devl_trap_groups_register); | |
12418 | ||
12419 | /** | |
12420 | * devlink_trap_groups_register - Register packet trap groups with devlink. | |
12421 | * @devlink: devlink. | |
12422 | * @groups: Packet trap groups. | |
12423 | * @groups_count: Count of provided packet trap groups. | |
12424 | * | |
12425 | * Context: Takes and release devlink->lock <mutex>. | |
12426 | * | |
12427 | * Return: Non-zero value on failure. | |
12428 | */ | |
12429 | int devlink_trap_groups_register(struct devlink *devlink, | |
12430 | const struct devlink_trap_group *groups, | |
12431 | size_t groups_count) | |
12432 | { | |
12433 | int err; | |
12434 | ||
12435 | devl_lock(devlink); | |
12436 | err = devl_trap_groups_register(devlink, groups, groups_count); | |
7715023a | 12437 | devl_unlock(devlink); |
95ad9555 IS |
12438 | return err; |
12439 | } | |
12440 | EXPORT_SYMBOL_GPL(devlink_trap_groups_register); | |
12441 | ||
852e85a7 JP |
12442 | /** |
12443 | * devl_trap_groups_unregister - Unregister packet trap groups from devlink. | |
12444 | * @devlink: devlink. | |
12445 | * @groups: Packet trap groups. | |
12446 | * @groups_count: Count of provided packet trap groups. | |
12447 | */ | |
12448 | void devl_trap_groups_unregister(struct devlink *devlink, | |
12449 | const struct devlink_trap_group *groups, | |
12450 | size_t groups_count) | |
12451 | { | |
12452 | int i; | |
12453 | ||
12454 | devl_assert_locked(devlink); | |
12455 | for (i = groups_count - 1; i >= 0; i--) | |
12456 | devlink_trap_group_unregister(devlink, &groups[i]); | |
12457 | } | |
12458 | EXPORT_SYMBOL_GPL(devl_trap_groups_unregister); | |
12459 | ||
95ad9555 IS |
12460 | /** |
12461 | * devlink_trap_groups_unregister - Unregister packet trap groups from devlink. | |
12462 | * @devlink: devlink. | |
12463 | * @groups: Packet trap groups. | |
12464 | * @groups_count: Count of provided packet trap groups. | |
852e85a7 JP |
12465 | * |
12466 | * Context: Takes and release devlink->lock <mutex>. | |
95ad9555 IS |
12467 | */ |
12468 | void devlink_trap_groups_unregister(struct devlink *devlink, | |
12469 | const struct devlink_trap_group *groups, | |
12470 | size_t groups_count) | |
12471 | { | |
7715023a | 12472 | devl_lock(devlink); |
852e85a7 | 12473 | devl_trap_groups_unregister(devlink, groups, groups_count); |
7715023a | 12474 | devl_unlock(devlink); |
95ad9555 IS |
12475 | } |
12476 | EXPORT_SYMBOL_GPL(devlink_trap_groups_unregister); | |
12477 | ||
1e8c6619 IS |
12478 | static void |
12479 | devlink_trap_policer_notify(struct devlink *devlink, | |
12480 | const struct devlink_trap_policer_item *policer_item, | |
12481 | enum devlink_command cmd) | |
12482 | { | |
12483 | struct sk_buff *msg; | |
12484 | int err; | |
12485 | ||
12486 | WARN_ON_ONCE(cmd != DEVLINK_CMD_TRAP_POLICER_NEW && | |
12487 | cmd != DEVLINK_CMD_TRAP_POLICER_DEL); | |
c5e0321e LR |
12488 | if (!xa_get_mark(&devlinks, devlink->index, DEVLINK_REGISTERED)) |
12489 | return; | |
1e8c6619 IS |
12490 | |
12491 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
12492 | if (!msg) | |
12493 | return; | |
12494 | ||
12495 | err = devlink_nl_trap_policer_fill(msg, devlink, policer_item, cmd, 0, | |
12496 | 0, 0); | |
12497 | if (err) { | |
12498 | nlmsg_free(msg); | |
12499 | return; | |
12500 | } | |
12501 | ||
12502 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), | |
12503 | msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
12504 | } | |
12505 | ||
12506 | static int | |
12507 | devlink_trap_policer_register(struct devlink *devlink, | |
12508 | const struct devlink_trap_policer *policer) | |
12509 | { | |
12510 | struct devlink_trap_policer_item *policer_item; | |
12511 | int err; | |
12512 | ||
12513 | if (devlink_trap_policer_item_lookup(devlink, policer->id)) | |
12514 | return -EEXIST; | |
12515 | ||
12516 | policer_item = kzalloc(sizeof(*policer_item), GFP_KERNEL); | |
12517 | if (!policer_item) | |
12518 | return -ENOMEM; | |
12519 | ||
12520 | policer_item->policer = policer; | |
12521 | policer_item->rate = policer->init_rate; | |
12522 | policer_item->burst = policer->init_burst; | |
12523 | ||
12524 | if (devlink->ops->trap_policer_init) { | |
12525 | err = devlink->ops->trap_policer_init(devlink, policer); | |
12526 | if (err) | |
12527 | goto err_policer_init; | |
12528 | } | |
12529 | ||
12530 | list_add_tail(&policer_item->list, &devlink->trap_policer_list); | |
c5e0321e LR |
12531 | devlink_trap_policer_notify(devlink, policer_item, |
12532 | DEVLINK_CMD_TRAP_POLICER_NEW); | |
12533 | ||
1e8c6619 IS |
12534 | return 0; |
12535 | ||
12536 | err_policer_init: | |
12537 | kfree(policer_item); | |
12538 | return err; | |
12539 | } | |
12540 | ||
12541 | static void | |
12542 | devlink_trap_policer_unregister(struct devlink *devlink, | |
12543 | const struct devlink_trap_policer *policer) | |
12544 | { | |
12545 | struct devlink_trap_policer_item *policer_item; | |
12546 | ||
12547 | policer_item = devlink_trap_policer_item_lookup(devlink, policer->id); | |
12548 | if (WARN_ON_ONCE(!policer_item)) | |
12549 | return; | |
12550 | ||
c5e0321e LR |
12551 | devlink_trap_policer_notify(devlink, policer_item, |
12552 | DEVLINK_CMD_TRAP_POLICER_DEL); | |
1e8c6619 IS |
12553 | list_del(&policer_item->list); |
12554 | if (devlink->ops->trap_policer_fini) | |
12555 | devlink->ops->trap_policer_fini(devlink, policer); | |
12556 | kfree(policer_item); | |
12557 | } | |
12558 | ||
12559 | /** | |
852e85a7 | 12560 | * devl_trap_policers_register - Register packet trap policers with devlink. |
1e8c6619 IS |
12561 | * @devlink: devlink. |
12562 | * @policers: Packet trap policers. | |
12563 | * @policers_count: Count of provided packet trap policers. | |
12564 | * | |
12565 | * Return: Non-zero value on failure. | |
12566 | */ | |
12567 | int | |
852e85a7 JP |
12568 | devl_trap_policers_register(struct devlink *devlink, |
12569 | const struct devlink_trap_policer *policers, | |
12570 | size_t policers_count) | |
1e8c6619 IS |
12571 | { |
12572 | int i, err; | |
12573 | ||
852e85a7 | 12574 | devl_assert_locked(devlink); |
1e8c6619 IS |
12575 | for (i = 0; i < policers_count; i++) { |
12576 | const struct devlink_trap_policer *policer = &policers[i]; | |
12577 | ||
12578 | if (WARN_ON(policer->id == 0 || | |
12579 | policer->max_rate < policer->min_rate || | |
12580 | policer->max_burst < policer->min_burst)) { | |
12581 | err = -EINVAL; | |
12582 | goto err_trap_policer_verify; | |
12583 | } | |
12584 | ||
12585 | err = devlink_trap_policer_register(devlink, policer); | |
12586 | if (err) | |
12587 | goto err_trap_policer_register; | |
12588 | } | |
1e8c6619 IS |
12589 | return 0; |
12590 | ||
12591 | err_trap_policer_register: | |
12592 | err_trap_policer_verify: | |
12593 | for (i--; i >= 0; i--) | |
12594 | devlink_trap_policer_unregister(devlink, &policers[i]); | |
852e85a7 JP |
12595 | return err; |
12596 | } | |
12597 | EXPORT_SYMBOL_GPL(devl_trap_policers_register); | |
12598 | ||
852e85a7 JP |
12599 | /** |
12600 | * devl_trap_policers_unregister - Unregister packet trap policers from devlink. | |
12601 | * @devlink: devlink. | |
12602 | * @policers: Packet trap policers. | |
12603 | * @policers_count: Count of provided packet trap policers. | |
12604 | */ | |
12605 | void | |
12606 | devl_trap_policers_unregister(struct devlink *devlink, | |
12607 | const struct devlink_trap_policer *policers, | |
12608 | size_t policers_count) | |
12609 | { | |
12610 | int i; | |
12611 | ||
12612 | devl_assert_locked(devlink); | |
12613 | for (i = policers_count - 1; i >= 0; i--) | |
12614 | devlink_trap_policer_unregister(devlink, &policers[i]); | |
12615 | } | |
12616 | EXPORT_SYMBOL_GPL(devl_trap_policers_unregister); | |
12617 | ||
ddb6e99e JK |
12618 | static void __devlink_compat_running_version(struct devlink *devlink, |
12619 | char *buf, size_t len) | |
12620 | { | |
f94b6063 | 12621 | struct devlink_info_req req = {}; |
ddb6e99e | 12622 | const struct nlattr *nlattr; |
ddb6e99e JK |
12623 | struct sk_buff *msg; |
12624 | int rem, err; | |
12625 | ||
ddb6e99e JK |
12626 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
12627 | if (!msg) | |
12628 | return; | |
12629 | ||
12630 | req.msg = msg; | |
12631 | err = devlink->ops->info_get(devlink, &req, NULL); | |
12632 | if (err) | |
12633 | goto free_msg; | |
12634 | ||
12635 | nla_for_each_attr(nlattr, (void *)msg->data, msg->len, rem) { | |
12636 | const struct nlattr *kv; | |
12637 | int rem_kv; | |
12638 | ||
12639 | if (nla_type(nlattr) != DEVLINK_ATTR_INFO_VERSION_RUNNING) | |
12640 | continue; | |
12641 | ||
12642 | nla_for_each_nested(kv, nlattr, rem_kv) { | |
12643 | if (nla_type(kv) != DEVLINK_ATTR_INFO_VERSION_VALUE) | |
12644 | continue; | |
12645 | ||
12646 | strlcat(buf, nla_data(kv), len); | |
12647 | strlcat(buf, " ", len); | |
12648 | } | |
12649 | } | |
12650 | free_msg: | |
12651 | nlmsg_free(msg); | |
12652 | } | |
12653 | ||
1af0a094 | 12654 | void devlink_compat_running_version(struct devlink *devlink, |
ddb6e99e JK |
12655 | char *buf, size_t len) |
12656 | { | |
1af0a094 JK |
12657 | if (!devlink->ops->info_get) |
12658 | return; | |
b473b0d2 | 12659 | |
7715023a | 12660 | devl_lock(devlink); |
b473b0d2 | 12661 | __devlink_compat_running_version(devlink, buf, len); |
7715023a | 12662 | devl_unlock(devlink); |
ddb6e99e JK |
12663 | } |
12664 | ||
1af0a094 | 12665 | int devlink_compat_flash_update(struct devlink *devlink, const char *file_name) |
4eceba17 | 12666 | { |
bc75c054 | 12667 | struct devlink_flash_update_params params = {}; |
e0dcd386 | 12668 | int ret; |
4eceba17 | 12669 | |
1af0a094 JK |
12670 | if (!devlink->ops->flash_update) |
12671 | return -EOPNOTSUPP; | |
4eceba17 | 12672 | |
b44cfd4f JK |
12673 | ret = request_firmware(¶ms.fw, file_name, devlink->dev); |
12674 | if (ret) | |
1af0a094 | 12675 | return ret; |
bc75c054 | 12676 | |
7715023a | 12677 | devl_lock(devlink); |
52cc5f3a | 12678 | devlink_flash_update_begin_notify(devlink); |
bc75c054 | 12679 | ret = devlink->ops->flash_update(devlink, ¶ms, NULL); |
52cc5f3a | 12680 | devlink_flash_update_end_notify(devlink); |
7715023a | 12681 | devl_unlock(devlink); |
1b45ff6c | 12682 | |
b44cfd4f JK |
12683 | release_firmware(params.fw); |
12684 | ||
b473b0d2 | 12685 | return ret; |
4eceba17 JK |
12686 | } |
12687 | ||
af3836df JP |
12688 | int devlink_compat_phys_port_name_get(struct net_device *dev, |
12689 | char *name, size_t len) | |
12690 | { | |
12691 | struct devlink_port *devlink_port; | |
12692 | ||
12693 | /* RTNL mutex is held here which ensures that devlink_port | |
12694 | * instance cannot disappear in the middle. No need to take | |
12695 | * any devlink lock as only permanent values are accessed. | |
12696 | */ | |
12697 | ASSERT_RTNL(); | |
12698 | ||
8eba37f7 | 12699 | devlink_port = dev->devlink_port; |
af3836df JP |
12700 | if (!devlink_port) |
12701 | return -EOPNOTSUPP; | |
12702 | ||
12703 | return __devlink_port_phys_port_name_get(devlink_port, name, len); | |
12704 | } | |
12705 | ||
7e1146e8 JP |
12706 | int devlink_compat_switch_id_get(struct net_device *dev, |
12707 | struct netdev_phys_item_id *ppid) | |
12708 | { | |
12709 | struct devlink_port *devlink_port; | |
12710 | ||
043b8413 VB |
12711 | /* Caller must hold RTNL mutex or reference to dev, which ensures that |
12712 | * devlink_port instance cannot disappear in the middle. No need to take | |
7e1146e8 JP |
12713 | * any devlink lock as only permanent values are accessed. |
12714 | */ | |
8eba37f7 | 12715 | devlink_port = dev->devlink_port; |
46737a19 | 12716 | if (!devlink_port || !devlink_port->switch_port) |
7e1146e8 JP |
12717 | return -EOPNOTSUPP; |
12718 | ||
12719 | memcpy(ppid, &devlink_port->attrs.switch_id, sizeof(*ppid)); | |
12720 | ||
12721 | return 0; | |
12722 | } | |
12723 | ||
070c63f2 JP |
12724 | static void __net_exit devlink_pernet_pre_exit(struct net *net) |
12725 | { | |
12726 | struct devlink *devlink; | |
ccdf0721 | 12727 | u32 actions_performed; |
11a861d7 | 12728 | unsigned long index; |
070c63f2 JP |
12729 | int err; |
12730 | ||
12731 | /* In case network namespace is getting destroyed, reload | |
12732 | * all devlink instances from this namespace into init_net. | |
12733 | */ | |
294c4f57 | 12734 | devlinks_xa_for_each_registered_get(net, index, devlink) { |
82465bec | 12735 | WARN_ON(!(devlink->features & DEVLINK_F_RELOAD)); |
644a66c6 | 12736 | mutex_lock(&devlink->lock); |
cbf6ab67 LR |
12737 | err = devlink_reload(devlink, &init_net, |
12738 | DEVLINK_RELOAD_ACTION_DRIVER_REINIT, | |
12739 | DEVLINK_RELOAD_LIMIT_UNSPEC, | |
12740 | &actions_performed, NULL); | |
644a66c6 | 12741 | mutex_unlock(&devlink->lock); |
cbf6ab67 LR |
12742 | if (err && err != -EOPNOTSUPP) |
12743 | pr_warn("Failed to reload devlink instance into init_net\n"); | |
437ebfd9 | 12744 | devlink_put(devlink); |
070c63f2 | 12745 | } |
070c63f2 JP |
12746 | } |
12747 | ||
12748 | static struct pernet_operations devlink_pernet_ops __net_initdata = { | |
12749 | .pre_exit = devlink_pernet_pre_exit, | |
12750 | }; | |
12751 | ||
f4b6bcc7 | 12752 | static int __init devlink_init(void) |
bfcd3a46 | 12753 | { |
070c63f2 JP |
12754 | int err; |
12755 | ||
12756 | err = genl_register_family(&devlink_nl_family); | |
12757 | if (err) | |
12758 | goto out; | |
12759 | err = register_pernet_subsys(&devlink_pernet_ops); | |
12760 | ||
12761 | out: | |
12762 | WARN_ON(err); | |
12763 | return err; | |
bfcd3a46 JP |
12764 | } |
12765 | ||
f4b6bcc7 | 12766 | subsys_initcall(devlink_init); |