Commit | Line | Data |
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2874c5fd | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
bfcd3a46 JP |
2 | /* |
3 | * net/core/devlink.c - Network physical/parent device Netlink interface | |
4 | * | |
5 | * Heavily inspired by net/wireless/ | |
6 | * Copyright (c) 2016 Mellanox Technologies. All rights reserved. | |
7 | * Copyright (c) 2016 Jiri Pirko <jiri@mellanox.com> | |
bfcd3a46 JP |
8 | */ |
9 | ||
b6459415 | 10 | #include <linux/etherdevice.h> |
bfcd3a46 JP |
11 | #include <linux/kernel.h> |
12 | #include <linux/module.h> | |
13 | #include <linux/types.h> | |
14 | #include <linux/slab.h> | |
15 | #include <linux/gfp.h> | |
16 | #include <linux/device.h> | |
17 | #include <linux/list.h> | |
18 | #include <linux/netdevice.h> | |
b8f97554 | 19 | #include <linux/spinlock.h> |
b587bdaf | 20 | #include <linux/refcount.h> |
136bf27f | 21 | #include <linux/workqueue.h> |
0f420b6c IS |
22 | #include <linux/u64_stats_sync.h> |
23 | #include <linux/timekeeping.h> | |
bfcd3a46 JP |
24 | #include <rdma/ib_verbs.h> |
25 | #include <net/netlink.h> | |
26 | #include <net/genetlink.h> | |
27 | #include <net/rtnetlink.h> | |
28 | #include <net/net_namespace.h> | |
29 | #include <net/sock.h> | |
30 | #include <net/devlink.h> | |
e5224f0f JP |
31 | #define CREATE_TRACE_POINTS |
32 | #include <trace/events/devlink.h> | |
33 | ||
21314638 LR |
34 | #define DEVLINK_RELOAD_STATS_ARRAY_SIZE \ |
35 | (__DEVLINK_RELOAD_LIMIT_MAX * __DEVLINK_RELOAD_ACTION_MAX) | |
36 | ||
37 | struct devlink_dev_stats { | |
38 | u32 reload_stats[DEVLINK_RELOAD_STATS_ARRAY_SIZE]; | |
39 | u32 remote_reload_stats[DEVLINK_RELOAD_STATS_ARRAY_SIZE]; | |
40 | }; | |
41 | ||
42 | struct devlink { | |
43 | u32 index; | |
44 | struct list_head port_list; | |
45 | struct list_head rate_list; | |
46 | struct list_head sb_list; | |
47 | struct list_head dpipe_table_list; | |
48 | struct list_head resource_list; | |
49 | struct list_head param_list; | |
50 | struct list_head region_list; | |
51 | struct list_head reporter_list; | |
52 | struct mutex reporters_lock; /* protects reporter_list */ | |
53 | struct devlink_dpipe_headers *dpipe_headers; | |
54 | struct list_head trap_list; | |
55 | struct list_head trap_group_list; | |
56 | struct list_head trap_policer_list; | |
c246f9b5 JP |
57 | struct list_head linecard_list; |
58 | struct mutex linecards_lock; /* protects linecard_list */ | |
21314638 | 59 | const struct devlink_ops *ops; |
bd032e35 | 60 | u64 features; |
21314638 LR |
61 | struct xarray snapshot_ids; |
62 | struct devlink_dev_stats stats; | |
63 | struct device *dev; | |
64 | possible_net_t _net; | |
65 | /* Serializes access to devlink instance specific objects such as | |
66 | * port, sb, dpipe, resource, params, region, traps and more. | |
67 | */ | |
68 | struct mutex lock; | |
e26fde2f | 69 | struct lock_class_key lock_key; |
82465bec | 70 | u8 reload_failed:1; |
21314638 LR |
71 | refcount_t refcount; |
72 | struct completion comp; | |
30bab7cd | 73 | struct rcu_head rcu; |
96d0c9be | 74 | char priv[] __aligned(NETDEV_ALIGN); |
21314638 LR |
75 | }; |
76 | ||
fcdc8ce2 JP |
77 | struct devlink_linecard_ops; |
78 | struct devlink_linecard_type; | |
79 | ||
c246f9b5 JP |
80 | struct devlink_linecard { |
81 | struct list_head list; | |
82 | struct devlink *devlink; | |
83 | unsigned int index; | |
84 | refcount_t refcount; | |
fcdc8ce2 JP |
85 | const struct devlink_linecard_ops *ops; |
86 | void *priv; | |
87 | enum devlink_linecard_state state; | |
c4a67a21 | 88 | struct mutex state_lock; /* Protects state */ |
fcdc8ce2 JP |
89 | const char *type; |
90 | struct devlink_linecard_type *types; | |
91 | unsigned int types_count; | |
7b2d9a1a | 92 | struct devlink *nested_devlink; |
c246f9b5 JP |
93 | }; |
94 | ||
4c897cfc LR |
95 | /** |
96 | * struct devlink_resource - devlink resource | |
97 | * @name: name of the resource | |
98 | * @id: id, per devlink instance | |
99 | * @size: size of the resource | |
100 | * @size_new: updated size of the resource, reload is needed | |
101 | * @size_valid: valid in case the total size of the resource is valid | |
102 | * including its children | |
103 | * @parent: parent resource | |
104 | * @size_params: size parameters | |
105 | * @list: parent list | |
106 | * @resource_list: list of child resources | |
107 | * @occ_get: occupancy getter callback | |
108 | * @occ_get_priv: occupancy getter callback priv | |
109 | */ | |
110 | struct devlink_resource { | |
111 | const char *name; | |
112 | u64 id; | |
113 | u64 size; | |
114 | u64 size_new; | |
115 | bool size_valid; | |
116 | struct devlink_resource *parent; | |
117 | struct devlink_resource_size_params size_params; | |
118 | struct list_head list; | |
119 | struct list_head resource_list; | |
120 | devlink_resource_occ_get_t *occ_get; | |
121 | void *occ_get_priv; | |
122 | }; | |
123 | ||
21314638 LR |
124 | void *devlink_priv(struct devlink *devlink) |
125 | { | |
126 | return &devlink->priv; | |
127 | } | |
128 | EXPORT_SYMBOL_GPL(devlink_priv); | |
129 | ||
130 | struct devlink *priv_to_devlink(void *priv) | |
131 | { | |
132 | return container_of(priv, struct devlink, priv); | |
133 | } | |
134 | EXPORT_SYMBOL_GPL(priv_to_devlink); | |
135 | ||
136 | struct device *devlink_to_dev(const struct devlink *devlink) | |
137 | { | |
138 | return devlink->dev; | |
139 | } | |
140 | EXPORT_SYMBOL_GPL(devlink_to_dev); | |
141 | ||
11770091 AS |
142 | static struct devlink_dpipe_field devlink_dpipe_fields_ethernet[] = { |
143 | { | |
12bdc5e1 | 144 | .name = "destination mac", |
11770091 AS |
145 | .id = DEVLINK_DPIPE_FIELD_ETHERNET_DST_MAC, |
146 | .bitwidth = 48, | |
147 | }, | |
148 | }; | |
149 | ||
150 | struct devlink_dpipe_header devlink_dpipe_header_ethernet = { | |
151 | .name = "ethernet", | |
152 | .id = DEVLINK_DPIPE_HEADER_ETHERNET, | |
153 | .fields = devlink_dpipe_fields_ethernet, | |
154 | .fields_count = ARRAY_SIZE(devlink_dpipe_fields_ethernet), | |
155 | .global = true, | |
156 | }; | |
c52ef04d | 157 | EXPORT_SYMBOL_GPL(devlink_dpipe_header_ethernet); |
11770091 | 158 | |
3fb886ec AS |
159 | static struct devlink_dpipe_field devlink_dpipe_fields_ipv4[] = { |
160 | { | |
161 | .name = "destination ip", | |
162 | .id = DEVLINK_DPIPE_FIELD_IPV4_DST_IP, | |
163 | .bitwidth = 32, | |
164 | }, | |
165 | }; | |
166 | ||
167 | struct devlink_dpipe_header devlink_dpipe_header_ipv4 = { | |
168 | .name = "ipv4", | |
169 | .id = DEVLINK_DPIPE_HEADER_IPV4, | |
170 | .fields = devlink_dpipe_fields_ipv4, | |
171 | .fields_count = ARRAY_SIZE(devlink_dpipe_fields_ipv4), | |
172 | .global = true, | |
173 | }; | |
c52ef04d | 174 | EXPORT_SYMBOL_GPL(devlink_dpipe_header_ipv4); |
3fb886ec | 175 | |
1797f5b3 AS |
176 | static struct devlink_dpipe_field devlink_dpipe_fields_ipv6[] = { |
177 | { | |
178 | .name = "destination ip", | |
179 | .id = DEVLINK_DPIPE_FIELD_IPV6_DST_IP, | |
180 | .bitwidth = 128, | |
181 | }, | |
182 | }; | |
183 | ||
184 | struct devlink_dpipe_header devlink_dpipe_header_ipv6 = { | |
185 | .name = "ipv6", | |
186 | .id = DEVLINK_DPIPE_HEADER_IPV6, | |
187 | .fields = devlink_dpipe_fields_ipv6, | |
188 | .fields_count = ARRAY_SIZE(devlink_dpipe_fields_ipv6), | |
189 | .global = true, | |
190 | }; | |
c52ef04d | 191 | EXPORT_SYMBOL_GPL(devlink_dpipe_header_ipv6); |
1797f5b3 | 192 | |
e5224f0f | 193 | EXPORT_TRACEPOINT_SYMBOL_GPL(devlink_hwmsg); |
57186a5f | 194 | EXPORT_TRACEPOINT_SYMBOL_GPL(devlink_hwerr); |
5b88823b | 195 | EXPORT_TRACEPOINT_SYMBOL_GPL(devlink_trap_report); |
bfcd3a46 | 196 | |
a1e8ae90 PP |
197 | static const struct nla_policy devlink_function_nl_policy[DEVLINK_PORT_FUNCTION_ATTR_MAX + 1] = { |
198 | [DEVLINK_PORT_FUNCTION_ATTR_HW_ADDR] = { .type = NLA_BINARY }, | |
a556dded PP |
199 | [DEVLINK_PORT_FN_ATTR_STATE] = |
200 | NLA_POLICY_RANGE(NLA_U8, DEVLINK_PORT_FN_STATE_INACTIVE, | |
201 | DEVLINK_PORT_FN_STATE_ACTIVE), | |
a1e8ae90 PP |
202 | }; |
203 | ||
11a861d7 LR |
204 | static DEFINE_XARRAY_FLAGS(devlinks, XA_FLAGS_ALLOC); |
205 | #define DEVLINK_REGISTERED XA_MARK_1 | |
bfcd3a46 | 206 | |
b88f7b12 LR |
207 | /* devlink instances are open to the access from the user space after |
208 | * devlink_register() call. Such logical barrier allows us to have certain | |
209 | * expectations related to locking. | |
210 | * | |
211 | * Before *_register() - we are in initialization stage and no parallel | |
212 | * access possible to the devlink instance. All drivers perform that phase | |
213 | * by implicitly holding device_lock. | |
214 | * | |
215 | * After *_register() - users and driver can access devlink instance at | |
216 | * the same time. | |
217 | */ | |
218 | #define ASSERT_DEVLINK_REGISTERED(d) \ | |
219 | WARN_ON_ONCE(!xa_get_mark(&devlinks, (d)->index, DEVLINK_REGISTERED)) | |
220 | #define ASSERT_DEVLINK_NOT_REGISTERED(d) \ | |
221 | WARN_ON_ONCE(xa_get_mark(&devlinks, (d)->index, DEVLINK_REGISTERED)) | |
222 | ||
bfcd3a46 JP |
223 | /* devlink_mutex |
224 | * | |
225 | * An overall lock guarding every operation coming from userspace. | |
bfcd3a46 JP |
226 | */ |
227 | static DEFINE_MUTEX(devlink_mutex); | |
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; | |
304 | /* For a possible retry, the xa_find_after() should be always used */ | |
305 | xa_find_fn = xa_find_after; | |
306 | if (!devlink_try_get(devlink)) | |
307 | goto retry; | |
294c4f57 JP |
308 | if (!net_eq(devlink_net(devlink), net)) { |
309 | devlink_put(devlink); | |
310 | goto retry; | |
311 | } | |
30bab7cd JP |
312 | unlock: |
313 | rcu_read_unlock(); | |
314 | return devlink; | |
315 | } | |
316 | ||
294c4f57 JP |
317 | static struct devlink *devlinks_xa_find_get_first(struct net *net, |
318 | unsigned long *indexp, | |
30bab7cd JP |
319 | xa_mark_t filter) |
320 | { | |
294c4f57 | 321 | return devlinks_xa_find_get(net, indexp, filter, xa_find); |
30bab7cd JP |
322 | } |
323 | ||
294c4f57 JP |
324 | static struct devlink *devlinks_xa_find_get_next(struct net *net, |
325 | unsigned long *indexp, | |
30bab7cd JP |
326 | xa_mark_t filter) |
327 | { | |
294c4f57 | 328 | return devlinks_xa_find_get(net, indexp, filter, xa_find_after); |
30bab7cd JP |
329 | } |
330 | ||
331 | /* Iterate over devlink pointers which were possible to get reference to. | |
332 | * devlink_put() needs to be called for each iterated devlink pointer | |
333 | * in loop body in order to release the reference. | |
334 | */ | |
294c4f57 JP |
335 | #define devlinks_xa_for_each_get(net, index, devlink, filter) \ |
336 | for (index = 0, \ | |
337 | devlink = devlinks_xa_find_get_first(net, &index, filter); \ | |
338 | devlink; devlink = devlinks_xa_find_get_next(net, &index, filter)) | |
30bab7cd | 339 | |
294c4f57 JP |
340 | #define devlinks_xa_for_each_registered_get(net, index, devlink) \ |
341 | devlinks_xa_for_each_get(net, index, devlink, DEVLINK_REGISTERED) | |
30bab7cd | 342 | |
bfcd3a46 JP |
343 | static struct devlink *devlink_get_from_attrs(struct net *net, |
344 | struct nlattr **attrs) | |
345 | { | |
346 | struct devlink *devlink; | |
11a861d7 | 347 | unsigned long index; |
bfcd3a46 JP |
348 | char *busname; |
349 | char *devname; | |
350 | ||
351 | if (!attrs[DEVLINK_ATTR_BUS_NAME] || !attrs[DEVLINK_ATTR_DEV_NAME]) | |
352 | return ERR_PTR(-EINVAL); | |
353 | ||
354 | busname = nla_data(attrs[DEVLINK_ATTR_BUS_NAME]); | |
355 | devname = nla_data(attrs[DEVLINK_ATTR_DEV_NAME]); | |
356 | ||
294c4f57 | 357 | devlinks_xa_for_each_registered_get(net, index, devlink) { |
bfcd3a46 | 358 | if (strcmp(devlink->dev->bus->name, busname) == 0 && |
294c4f57 | 359 | strcmp(dev_name(devlink->dev), devname) == 0) |
30bab7cd JP |
360 | return devlink; |
361 | devlink_put(devlink); | |
bfcd3a46 JP |
362 | } |
363 | ||
30bab7cd | 364 | return ERR_PTR(-ENODEV); |
bfcd3a46 JP |
365 | } |
366 | ||
367 | static struct devlink_port *devlink_port_get_by_index(struct devlink *devlink, | |
c7282b50 | 368 | unsigned int port_index) |
bfcd3a46 JP |
369 | { |
370 | struct devlink_port *devlink_port; | |
371 | ||
372 | list_for_each_entry(devlink_port, &devlink->port_list, list) { | |
373 | if (devlink_port->index == port_index) | |
374 | return devlink_port; | |
375 | } | |
376 | return NULL; | |
377 | } | |
378 | ||
c7282b50 PP |
379 | static bool devlink_port_index_exists(struct devlink *devlink, |
380 | unsigned int port_index) | |
bfcd3a46 JP |
381 | { |
382 | return devlink_port_get_by_index(devlink, port_index); | |
383 | } | |
384 | ||
385 | static struct devlink_port *devlink_port_get_from_attrs(struct devlink *devlink, | |
386 | struct nlattr **attrs) | |
387 | { | |
388 | if (attrs[DEVLINK_ATTR_PORT_INDEX]) { | |
389 | u32 port_index = nla_get_u32(attrs[DEVLINK_ATTR_PORT_INDEX]); | |
390 | struct devlink_port *devlink_port; | |
391 | ||
392 | devlink_port = devlink_port_get_by_index(devlink, port_index); | |
393 | if (!devlink_port) | |
394 | return ERR_PTR(-ENODEV); | |
395 | return devlink_port; | |
396 | } | |
397 | return ERR_PTR(-EINVAL); | |
398 | } | |
399 | ||
400 | static struct devlink_port *devlink_port_get_from_info(struct devlink *devlink, | |
401 | struct genl_info *info) | |
402 | { | |
403 | return devlink_port_get_from_attrs(devlink, info->attrs); | |
404 | } | |
405 | ||
4677efc4 DL |
406 | static inline bool |
407 | devlink_rate_is_leaf(struct devlink_rate *devlink_rate) | |
408 | { | |
409 | return devlink_rate->type == DEVLINK_RATE_TYPE_LEAF; | |
410 | } | |
411 | ||
a8ecb93e DL |
412 | static inline bool |
413 | devlink_rate_is_node(struct devlink_rate *devlink_rate) | |
414 | { | |
415 | return devlink_rate->type == DEVLINK_RATE_TYPE_NODE; | |
416 | } | |
417 | ||
4677efc4 DL |
418 | static struct devlink_rate * |
419 | devlink_rate_leaf_get_from_info(struct devlink *devlink, struct genl_info *info) | |
420 | { | |
421 | struct devlink_rate *devlink_rate; | |
422 | struct devlink_port *devlink_port; | |
423 | ||
424 | devlink_port = devlink_port_get_from_attrs(devlink, info->attrs); | |
425 | if (IS_ERR(devlink_port)) | |
426 | return ERR_CAST(devlink_port); | |
427 | devlink_rate = devlink_port->devlink_rate; | |
428 | return devlink_rate ?: ERR_PTR(-ENODEV); | |
429 | } | |
430 | ||
a8ecb93e DL |
431 | static struct devlink_rate * |
432 | devlink_rate_node_get_by_name(struct devlink *devlink, const char *node_name) | |
433 | { | |
434 | static struct devlink_rate *devlink_rate; | |
435 | ||
436 | list_for_each_entry(devlink_rate, &devlink->rate_list, list) { | |
437 | if (devlink_rate_is_node(devlink_rate) && | |
438 | !strcmp(node_name, devlink_rate->name)) | |
439 | return devlink_rate; | |
440 | } | |
441 | return ERR_PTR(-ENODEV); | |
442 | } | |
443 | ||
444 | static struct devlink_rate * | |
445 | devlink_rate_node_get_from_attrs(struct devlink *devlink, struct nlattr **attrs) | |
446 | { | |
447 | const char *rate_node_name; | |
448 | size_t len; | |
449 | ||
450 | if (!attrs[DEVLINK_ATTR_RATE_NODE_NAME]) | |
451 | return ERR_PTR(-EINVAL); | |
452 | rate_node_name = nla_data(attrs[DEVLINK_ATTR_RATE_NODE_NAME]); | |
453 | len = strlen(rate_node_name); | |
454 | /* Name cannot be empty or decimal number */ | |
455 | if (!len || strspn(rate_node_name, "0123456789") == len) | |
456 | return ERR_PTR(-EINVAL); | |
457 | ||
458 | return devlink_rate_node_get_by_name(devlink, rate_node_name); | |
459 | } | |
460 | ||
461 | static struct devlink_rate * | |
462 | devlink_rate_node_get_from_info(struct devlink *devlink, struct genl_info *info) | |
463 | { | |
464 | return devlink_rate_node_get_from_attrs(devlink, info->attrs); | |
465 | } | |
466 | ||
467 | static struct devlink_rate * | |
468 | devlink_rate_get_from_info(struct devlink *devlink, struct genl_info *info) | |
469 | { | |
470 | struct nlattr **attrs = info->attrs; | |
471 | ||
472 | if (attrs[DEVLINK_ATTR_PORT_INDEX]) | |
473 | return devlink_rate_leaf_get_from_info(devlink, info); | |
474 | else if (attrs[DEVLINK_ATTR_RATE_NODE_NAME]) | |
475 | return devlink_rate_node_get_from_info(devlink, info); | |
476 | else | |
477 | return ERR_PTR(-EINVAL); | |
478 | } | |
479 | ||
c246f9b5 JP |
480 | static struct devlink_linecard * |
481 | devlink_linecard_get_by_index(struct devlink *devlink, | |
482 | unsigned int linecard_index) | |
483 | { | |
484 | struct devlink_linecard *devlink_linecard; | |
485 | ||
486 | list_for_each_entry(devlink_linecard, &devlink->linecard_list, list) { | |
487 | if (devlink_linecard->index == linecard_index) | |
488 | return devlink_linecard; | |
489 | } | |
490 | return NULL; | |
491 | } | |
492 | ||
493 | static bool devlink_linecard_index_exists(struct devlink *devlink, | |
494 | unsigned int linecard_index) | |
495 | { | |
496 | return devlink_linecard_get_by_index(devlink, linecard_index); | |
497 | } | |
498 | ||
499 | static struct devlink_linecard * | |
500 | devlink_linecard_get_from_attrs(struct devlink *devlink, struct nlattr **attrs) | |
501 | { | |
502 | if (attrs[DEVLINK_ATTR_LINECARD_INDEX]) { | |
503 | u32 linecard_index = nla_get_u32(attrs[DEVLINK_ATTR_LINECARD_INDEX]); | |
504 | struct devlink_linecard *linecard; | |
505 | ||
506 | mutex_lock(&devlink->linecards_lock); | |
507 | linecard = devlink_linecard_get_by_index(devlink, linecard_index); | |
508 | if (linecard) | |
509 | refcount_inc(&linecard->refcount); | |
510 | mutex_unlock(&devlink->linecards_lock); | |
511 | if (!linecard) | |
512 | return ERR_PTR(-ENODEV); | |
513 | return linecard; | |
514 | } | |
515 | return ERR_PTR(-EINVAL); | |
516 | } | |
517 | ||
518 | static struct devlink_linecard * | |
519 | devlink_linecard_get_from_info(struct devlink *devlink, struct genl_info *info) | |
520 | { | |
521 | return devlink_linecard_get_from_attrs(devlink, info->attrs); | |
522 | } | |
523 | ||
524 | static void devlink_linecard_put(struct devlink_linecard *linecard) | |
525 | { | |
fcdc8ce2 JP |
526 | if (refcount_dec_and_test(&linecard->refcount)) { |
527 | mutex_destroy(&linecard->state_lock); | |
c246f9b5 | 528 | kfree(linecard); |
fcdc8ce2 | 529 | } |
c246f9b5 JP |
530 | } |
531 | ||
bf797471 JP |
532 | struct devlink_sb { |
533 | struct list_head list; | |
534 | unsigned int index; | |
535 | u32 size; | |
536 | u16 ingress_pools_count; | |
537 | u16 egress_pools_count; | |
538 | u16 ingress_tc_count; | |
539 | u16 egress_tc_count; | |
540 | }; | |
541 | ||
542 | static u16 devlink_sb_pool_count(struct devlink_sb *devlink_sb) | |
543 | { | |
544 | return devlink_sb->ingress_pools_count + devlink_sb->egress_pools_count; | |
545 | } | |
546 | ||
547 | static struct devlink_sb *devlink_sb_get_by_index(struct devlink *devlink, | |
548 | unsigned int sb_index) | |
549 | { | |
550 | struct devlink_sb *devlink_sb; | |
551 | ||
552 | list_for_each_entry(devlink_sb, &devlink->sb_list, list) { | |
553 | if (devlink_sb->index == sb_index) | |
554 | return devlink_sb; | |
555 | } | |
556 | return NULL; | |
557 | } | |
558 | ||
559 | static bool devlink_sb_index_exists(struct devlink *devlink, | |
560 | unsigned int sb_index) | |
561 | { | |
562 | return devlink_sb_get_by_index(devlink, sb_index); | |
563 | } | |
564 | ||
565 | static struct devlink_sb *devlink_sb_get_from_attrs(struct devlink *devlink, | |
566 | struct nlattr **attrs) | |
567 | { | |
568 | if (attrs[DEVLINK_ATTR_SB_INDEX]) { | |
569 | u32 sb_index = nla_get_u32(attrs[DEVLINK_ATTR_SB_INDEX]); | |
570 | struct devlink_sb *devlink_sb; | |
571 | ||
572 | devlink_sb = devlink_sb_get_by_index(devlink, sb_index); | |
573 | if (!devlink_sb) | |
574 | return ERR_PTR(-ENODEV); | |
575 | return devlink_sb; | |
576 | } | |
577 | return ERR_PTR(-EINVAL); | |
578 | } | |
579 | ||
580 | static struct devlink_sb *devlink_sb_get_from_info(struct devlink *devlink, | |
581 | struct genl_info *info) | |
582 | { | |
583 | return devlink_sb_get_from_attrs(devlink, info->attrs); | |
584 | } | |
585 | ||
586 | static int devlink_sb_pool_index_get_from_attrs(struct devlink_sb *devlink_sb, | |
587 | struct nlattr **attrs, | |
588 | u16 *p_pool_index) | |
589 | { | |
590 | u16 val; | |
591 | ||
592 | if (!attrs[DEVLINK_ATTR_SB_POOL_INDEX]) | |
593 | return -EINVAL; | |
594 | ||
595 | val = nla_get_u16(attrs[DEVLINK_ATTR_SB_POOL_INDEX]); | |
596 | if (val >= devlink_sb_pool_count(devlink_sb)) | |
597 | return -EINVAL; | |
598 | *p_pool_index = val; | |
599 | return 0; | |
600 | } | |
601 | ||
602 | static int devlink_sb_pool_index_get_from_info(struct devlink_sb *devlink_sb, | |
603 | struct genl_info *info, | |
604 | u16 *p_pool_index) | |
605 | { | |
606 | return devlink_sb_pool_index_get_from_attrs(devlink_sb, info->attrs, | |
607 | p_pool_index); | |
608 | } | |
609 | ||
610 | static int | |
611 | devlink_sb_pool_type_get_from_attrs(struct nlattr **attrs, | |
612 | enum devlink_sb_pool_type *p_pool_type) | |
613 | { | |
614 | u8 val; | |
615 | ||
616 | if (!attrs[DEVLINK_ATTR_SB_POOL_TYPE]) | |
617 | return -EINVAL; | |
618 | ||
619 | val = nla_get_u8(attrs[DEVLINK_ATTR_SB_POOL_TYPE]); | |
620 | if (val != DEVLINK_SB_POOL_TYPE_INGRESS && | |
621 | val != DEVLINK_SB_POOL_TYPE_EGRESS) | |
622 | return -EINVAL; | |
623 | *p_pool_type = val; | |
624 | return 0; | |
625 | } | |
626 | ||
627 | static int | |
628 | devlink_sb_pool_type_get_from_info(struct genl_info *info, | |
629 | enum devlink_sb_pool_type *p_pool_type) | |
630 | { | |
631 | return devlink_sb_pool_type_get_from_attrs(info->attrs, p_pool_type); | |
632 | } | |
633 | ||
634 | static int | |
635 | devlink_sb_th_type_get_from_attrs(struct nlattr **attrs, | |
636 | enum devlink_sb_threshold_type *p_th_type) | |
637 | { | |
638 | u8 val; | |
639 | ||
640 | if (!attrs[DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE]) | |
641 | return -EINVAL; | |
642 | ||
643 | val = nla_get_u8(attrs[DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE]); | |
644 | if (val != DEVLINK_SB_THRESHOLD_TYPE_STATIC && | |
645 | val != DEVLINK_SB_THRESHOLD_TYPE_DYNAMIC) | |
646 | return -EINVAL; | |
647 | *p_th_type = val; | |
648 | return 0; | |
649 | } | |
650 | ||
651 | static int | |
652 | devlink_sb_th_type_get_from_info(struct genl_info *info, | |
653 | enum devlink_sb_threshold_type *p_th_type) | |
654 | { | |
655 | return devlink_sb_th_type_get_from_attrs(info->attrs, p_th_type); | |
656 | } | |
657 | ||
658 | static int | |
659 | devlink_sb_tc_index_get_from_attrs(struct devlink_sb *devlink_sb, | |
660 | struct nlattr **attrs, | |
661 | enum devlink_sb_pool_type pool_type, | |
662 | u16 *p_tc_index) | |
663 | { | |
664 | u16 val; | |
665 | ||
666 | if (!attrs[DEVLINK_ATTR_SB_TC_INDEX]) | |
667 | return -EINVAL; | |
668 | ||
669 | val = nla_get_u16(attrs[DEVLINK_ATTR_SB_TC_INDEX]); | |
670 | if (pool_type == DEVLINK_SB_POOL_TYPE_INGRESS && | |
671 | val >= devlink_sb->ingress_tc_count) | |
672 | return -EINVAL; | |
673 | if (pool_type == DEVLINK_SB_POOL_TYPE_EGRESS && | |
674 | val >= devlink_sb->egress_tc_count) | |
675 | return -EINVAL; | |
676 | *p_tc_index = val; | |
677 | return 0; | |
678 | } | |
679 | ||
680 | static int | |
681 | devlink_sb_tc_index_get_from_info(struct devlink_sb *devlink_sb, | |
682 | struct genl_info *info, | |
683 | enum devlink_sb_pool_type pool_type, | |
684 | u16 *p_tc_index) | |
685 | { | |
686 | return devlink_sb_tc_index_get_from_attrs(devlink_sb, info->attrs, | |
687 | pool_type, p_tc_index); | |
688 | } | |
689 | ||
b16ebe92 AV |
690 | struct devlink_region { |
691 | struct devlink *devlink; | |
544e7c33 | 692 | struct devlink_port *port; |
b16ebe92 | 693 | struct list_head list; |
544e7c33 AL |
694 | union { |
695 | const struct devlink_region_ops *ops; | |
696 | const struct devlink_port_region_ops *port_ops; | |
697 | }; | |
b16ebe92 AV |
698 | struct list_head snapshot_list; |
699 | u32 max_snapshots; | |
700 | u32 cur_snapshots; | |
701 | u64 size; | |
702 | }; | |
703 | ||
d7e52722 AV |
704 | struct devlink_snapshot { |
705 | struct list_head list; | |
706 | struct devlink_region *region; | |
d7e52722 AV |
707 | u8 *data; |
708 | u32 id; | |
709 | }; | |
710 | ||
b16ebe92 AV |
711 | static struct devlink_region * |
712 | devlink_region_get_by_name(struct devlink *devlink, const char *region_name) | |
713 | { | |
714 | struct devlink_region *region; | |
715 | ||
716 | list_for_each_entry(region, &devlink->region_list, list) | |
e8937681 | 717 | if (!strcmp(region->ops->name, region_name)) |
b16ebe92 AV |
718 | return region; |
719 | ||
720 | return NULL; | |
721 | } | |
722 | ||
544e7c33 AL |
723 | static struct devlink_region * |
724 | devlink_port_region_get_by_name(struct devlink_port *port, | |
725 | const char *region_name) | |
726 | { | |
727 | struct devlink_region *region; | |
728 | ||
729 | list_for_each_entry(region, &port->region_list, list) | |
730 | if (!strcmp(region->ops->name, region_name)) | |
731 | return region; | |
732 | ||
733 | return NULL; | |
734 | } | |
735 | ||
d7e52722 AV |
736 | static struct devlink_snapshot * |
737 | devlink_region_snapshot_get_by_id(struct devlink_region *region, u32 id) | |
738 | { | |
739 | struct devlink_snapshot *snapshot; | |
740 | ||
741 | list_for_each_entry(snapshot, ®ion->snapshot_list, list) | |
742 | if (snapshot->id == id) | |
743 | return snapshot; | |
744 | ||
745 | return NULL; | |
746 | } | |
747 | ||
637989b5 PP |
748 | #define DEVLINK_NL_FLAG_NEED_PORT BIT(0) |
749 | #define DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT BIT(1) | |
4677efc4 | 750 | #define DEVLINK_NL_FLAG_NEED_RATE BIT(2) |
a8ecb93e | 751 | #define DEVLINK_NL_FLAG_NEED_RATE_NODE BIT(3) |
c246f9b5 | 752 | #define DEVLINK_NL_FLAG_NEED_LINECARD BIT(4) |
2406e7e5 AS |
753 | |
754 | /* The per devlink instance lock is taken by default in the pre-doit | |
755 | * operation, yet several commands do not require this. The global | |
756 | * devlink lock is taken and protects from disruption by user-calls. | |
757 | */ | |
c246f9b5 | 758 | #define DEVLINK_NL_FLAG_NO_LOCK BIT(5) |
bfcd3a46 JP |
759 | |
760 | static int devlink_nl_pre_doit(const struct genl_ops *ops, | |
761 | struct sk_buff *skb, struct genl_info *info) | |
762 | { | |
c246f9b5 | 763 | struct devlink_linecard *linecard; |
f4f54166 | 764 | struct devlink_port *devlink_port; |
bfcd3a46 | 765 | struct devlink *devlink; |
2406e7e5 | 766 | int err; |
bfcd3a46 JP |
767 | |
768 | mutex_lock(&devlink_mutex); | |
437ebfd9 | 769 | devlink = devlink_get_from_attrs(genl_info_net(info), info->attrs); |
bfcd3a46 JP |
770 | if (IS_ERR(devlink)) { |
771 | mutex_unlock(&devlink_mutex); | |
772 | return PTR_ERR(devlink); | |
773 | } | |
2406e7e5 | 774 | if (~ops->internal_flags & DEVLINK_NL_FLAG_NO_LOCK) |
7715023a | 775 | devl_lock(devlink); |
637989b5 PP |
776 | info->user_ptr[0] = devlink; |
777 | if (ops->internal_flags & DEVLINK_NL_FLAG_NEED_PORT) { | |
bfcd3a46 JP |
778 | devlink_port = devlink_port_get_from_info(devlink, info); |
779 | if (IS_ERR(devlink_port)) { | |
2406e7e5 AS |
780 | err = PTR_ERR(devlink_port); |
781 | goto unlock; | |
bfcd3a46 | 782 | } |
637989b5 | 783 | info->user_ptr[1] = devlink_port; |
f4f54166 | 784 | } else if (ops->internal_flags & DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT) { |
f4f54166 VT |
785 | devlink_port = devlink_port_get_from_info(devlink, info); |
786 | if (!IS_ERR(devlink_port)) | |
787 | info->user_ptr[1] = devlink_port; | |
4677efc4 DL |
788 | } else if (ops->internal_flags & DEVLINK_NL_FLAG_NEED_RATE) { |
789 | struct devlink_rate *devlink_rate; | |
790 | ||
a8ecb93e | 791 | devlink_rate = devlink_rate_get_from_info(devlink, info); |
4677efc4 DL |
792 | if (IS_ERR(devlink_rate)) { |
793 | err = PTR_ERR(devlink_rate); | |
794 | goto unlock; | |
795 | } | |
796 | info->user_ptr[1] = devlink_rate; | |
a8ecb93e DL |
797 | } else if (ops->internal_flags & DEVLINK_NL_FLAG_NEED_RATE_NODE) { |
798 | struct devlink_rate *rate_node; | |
799 | ||
800 | rate_node = devlink_rate_node_get_from_info(devlink, info); | |
801 | if (IS_ERR(rate_node)) { | |
802 | err = PTR_ERR(rate_node); | |
803 | goto unlock; | |
804 | } | |
805 | info->user_ptr[1] = rate_node; | |
c246f9b5 JP |
806 | } else if (ops->internal_flags & DEVLINK_NL_FLAG_NEED_LINECARD) { |
807 | linecard = devlink_linecard_get_from_info(devlink, info); | |
808 | if (IS_ERR(linecard)) { | |
809 | err = PTR_ERR(linecard); | |
810 | goto unlock; | |
811 | } | |
812 | info->user_ptr[1] = linecard; | |
bfcd3a46 JP |
813 | } |
814 | return 0; | |
2406e7e5 AS |
815 | |
816 | unlock: | |
817 | if (~ops->internal_flags & DEVLINK_NL_FLAG_NO_LOCK) | |
7715023a | 818 | devl_unlock(devlink); |
437ebfd9 | 819 | devlink_put(devlink); |
2406e7e5 AS |
820 | mutex_unlock(&devlink_mutex); |
821 | return err; | |
bfcd3a46 JP |
822 | } |
823 | ||
824 | static void devlink_nl_post_doit(const struct genl_ops *ops, | |
825 | struct sk_buff *skb, struct genl_info *info) | |
826 | { | |
c246f9b5 | 827 | struct devlink_linecard *linecard; |
2406e7e5 AS |
828 | struct devlink *devlink; |
829 | ||
637989b5 | 830 | devlink = info->user_ptr[0]; |
c246f9b5 JP |
831 | if (ops->internal_flags & DEVLINK_NL_FLAG_NEED_LINECARD) { |
832 | linecard = info->user_ptr[1]; | |
833 | devlink_linecard_put(linecard); | |
834 | } | |
637989b5 | 835 | if (~ops->internal_flags & DEVLINK_NL_FLAG_NO_LOCK) |
7715023a | 836 | devl_unlock(devlink); |
437ebfd9 | 837 | devlink_put(devlink); |
bfcd3a46 JP |
838 | mutex_unlock(&devlink_mutex); |
839 | } | |
840 | ||
489111e5 | 841 | static struct genl_family devlink_nl_family; |
bfcd3a46 JP |
842 | |
843 | enum devlink_multicast_groups { | |
844 | DEVLINK_MCGRP_CONFIG, | |
845 | }; | |
846 | ||
847 | static const struct genl_multicast_group devlink_nl_mcgrps[] = { | |
848 | [DEVLINK_MCGRP_CONFIG] = { .name = DEVLINK_GENL_MCGRP_CONFIG_NAME }, | |
849 | }; | |
850 | ||
851 | static int devlink_nl_put_handle(struct sk_buff *msg, struct devlink *devlink) | |
852 | { | |
853 | if (nla_put_string(msg, DEVLINK_ATTR_BUS_NAME, devlink->dev->bus->name)) | |
854 | return -EMSGSIZE; | |
855 | if (nla_put_string(msg, DEVLINK_ATTR_DEV_NAME, dev_name(devlink->dev))) | |
856 | return -EMSGSIZE; | |
857 | return 0; | |
858 | } | |
859 | ||
7b2d9a1a JP |
860 | static int devlink_nl_put_nested_handle(struct sk_buff *msg, struct devlink *devlink) |
861 | { | |
862 | struct nlattr *nested_attr; | |
863 | ||
864 | nested_attr = nla_nest_start(msg, DEVLINK_ATTR_NESTED_DEVLINK); | |
865 | if (!nested_attr) | |
866 | return -EMSGSIZE; | |
867 | if (devlink_nl_put_handle(msg, devlink)) | |
868 | goto nla_put_failure; | |
869 | ||
870 | nla_nest_end(msg, nested_attr); | |
871 | return 0; | |
872 | ||
873 | nla_put_failure: | |
874 | nla_nest_cancel(msg, nested_attr); | |
875 | return -EMSGSIZE; | |
876 | } | |
877 | ||
dc64cc7c MS |
878 | struct devlink_reload_combination { |
879 | enum devlink_reload_action action; | |
880 | enum devlink_reload_limit limit; | |
881 | }; | |
882 | ||
883 | static const struct devlink_reload_combination devlink_reload_invalid_combinations[] = { | |
884 | { | |
885 | /* can't reinitialize driver with no down time */ | |
886 | .action = DEVLINK_RELOAD_ACTION_DRIVER_REINIT, | |
887 | .limit = DEVLINK_RELOAD_LIMIT_NO_RESET, | |
888 | }, | |
889 | }; | |
890 | ||
891 | static bool | |
892 | devlink_reload_combination_is_invalid(enum devlink_reload_action action, | |
893 | enum devlink_reload_limit limit) | |
894 | { | |
895 | int i; | |
896 | ||
897 | for (i = 0; i < ARRAY_SIZE(devlink_reload_invalid_combinations); i++) | |
898 | if (devlink_reload_invalid_combinations[i].action == action && | |
899 | devlink_reload_invalid_combinations[i].limit == limit) | |
900 | return true; | |
901 | return false; | |
902 | } | |
903 | ||
ccdf0721 MS |
904 | static bool |
905 | devlink_reload_action_is_supported(struct devlink *devlink, enum devlink_reload_action action) | |
906 | { | |
907 | return test_bit(action, &devlink->ops->reload_actions); | |
908 | } | |
909 | ||
dc64cc7c MS |
910 | static bool |
911 | devlink_reload_limit_is_supported(struct devlink *devlink, enum devlink_reload_limit limit) | |
912 | { | |
913 | return test_bit(limit, &devlink->ops->reload_limits); | |
914 | } | |
915 | ||
5204bb68 | 916 | static int devlink_reload_stat_put(struct sk_buff *msg, |
a254c264 MS |
917 | enum devlink_reload_limit limit, u32 value) |
918 | { | |
919 | struct nlattr *reload_stats_entry; | |
920 | ||
921 | reload_stats_entry = nla_nest_start(msg, DEVLINK_ATTR_RELOAD_STATS_ENTRY); | |
922 | if (!reload_stats_entry) | |
923 | return -EMSGSIZE; | |
924 | ||
5204bb68 | 925 | if (nla_put_u8(msg, DEVLINK_ATTR_RELOAD_STATS_LIMIT, limit) || |
a254c264 MS |
926 | nla_put_u32(msg, DEVLINK_ATTR_RELOAD_STATS_VALUE, value)) |
927 | goto nla_put_failure; | |
928 | nla_nest_end(msg, reload_stats_entry); | |
929 | return 0; | |
930 | ||
931 | nla_put_failure: | |
932 | nla_nest_cancel(msg, reload_stats_entry); | |
933 | return -EMSGSIZE; | |
934 | } | |
935 | ||
77069ba2 | 936 | static int devlink_reload_stats_put(struct sk_buff *msg, struct devlink *devlink, bool is_remote) |
a254c264 | 937 | { |
5204bb68 | 938 | struct nlattr *reload_stats_attr, *act_info, *act_stats; |
a254c264 MS |
939 | int i, j, stat_idx; |
940 | u32 value; | |
941 | ||
77069ba2 MS |
942 | if (!is_remote) |
943 | reload_stats_attr = nla_nest_start(msg, DEVLINK_ATTR_RELOAD_STATS); | |
944 | else | |
945 | reload_stats_attr = nla_nest_start(msg, DEVLINK_ATTR_REMOTE_RELOAD_STATS); | |
a254c264 MS |
946 | |
947 | if (!reload_stats_attr) | |
948 | return -EMSGSIZE; | |
949 | ||
5204bb68 MS |
950 | for (i = 0; i <= DEVLINK_RELOAD_ACTION_MAX; i++) { |
951 | if ((!is_remote && | |
952 | !devlink_reload_action_is_supported(devlink, i)) || | |
953 | i == DEVLINK_RELOAD_ACTION_UNSPEC) | |
a254c264 | 954 | continue; |
5204bb68 MS |
955 | act_info = nla_nest_start(msg, DEVLINK_ATTR_RELOAD_ACTION_INFO); |
956 | if (!act_info) | |
957 | goto nla_put_failure; | |
958 | ||
959 | if (nla_put_u8(msg, DEVLINK_ATTR_RELOAD_ACTION, i)) | |
960 | goto action_info_nest_cancel; | |
961 | act_stats = nla_nest_start(msg, DEVLINK_ATTR_RELOAD_ACTION_STATS); | |
962 | if (!act_stats) | |
963 | goto action_info_nest_cancel; | |
964 | ||
965 | for (j = 0; j <= DEVLINK_RELOAD_LIMIT_MAX; j++) { | |
966 | /* Remote stats are shown even if not locally supported. | |
967 | * Stats of actions with unspecified limit are shown | |
968 | * though drivers don't need to register unspecified | |
969 | * limit. | |
970 | */ | |
971 | if ((!is_remote && j != DEVLINK_RELOAD_LIMIT_UNSPEC && | |
972 | !devlink_reload_limit_is_supported(devlink, j)) || | |
a254c264 MS |
973 | devlink_reload_combination_is_invalid(i, j)) |
974 | continue; | |
975 | ||
976 | stat_idx = j * __DEVLINK_RELOAD_ACTION_MAX + i; | |
77069ba2 MS |
977 | if (!is_remote) |
978 | value = devlink->stats.reload_stats[stat_idx]; | |
979 | else | |
980 | value = devlink->stats.remote_reload_stats[stat_idx]; | |
5204bb68 MS |
981 | if (devlink_reload_stat_put(msg, j, value)) |
982 | goto action_stats_nest_cancel; | |
a254c264 | 983 | } |
5204bb68 MS |
984 | nla_nest_end(msg, act_stats); |
985 | nla_nest_end(msg, act_info); | |
a254c264 MS |
986 | } |
987 | nla_nest_end(msg, reload_stats_attr); | |
988 | return 0; | |
989 | ||
5204bb68 MS |
990 | action_stats_nest_cancel: |
991 | nla_nest_cancel(msg, act_stats); | |
992 | action_info_nest_cancel: | |
993 | nla_nest_cancel(msg, act_info); | |
a254c264 MS |
994 | nla_put_failure: |
995 | nla_nest_cancel(msg, reload_stats_attr); | |
996 | return -EMSGSIZE; | |
997 | } | |
998 | ||
bfcd3a46 JP |
999 | static int devlink_nl_fill(struct sk_buff *msg, struct devlink *devlink, |
1000 | enum devlink_command cmd, u32 portid, | |
1001 | u32 seq, int flags) | |
1002 | { | |
a254c264 | 1003 | struct nlattr *dev_stats; |
bfcd3a46 JP |
1004 | void *hdr; |
1005 | ||
1006 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
1007 | if (!hdr) | |
1008 | return -EMSGSIZE; | |
1009 | ||
1010 | if (devlink_nl_put_handle(msg, devlink)) | |
1011 | goto nla_put_failure; | |
2670ac26 JP |
1012 | if (nla_put_u8(msg, DEVLINK_ATTR_RELOAD_FAILED, devlink->reload_failed)) |
1013 | goto nla_put_failure; | |
bfcd3a46 | 1014 | |
a254c264 MS |
1015 | dev_stats = nla_nest_start(msg, DEVLINK_ATTR_DEV_STATS); |
1016 | if (!dev_stats) | |
1017 | goto nla_put_failure; | |
1018 | ||
77069ba2 MS |
1019 | if (devlink_reload_stats_put(msg, devlink, false)) |
1020 | goto dev_stats_nest_cancel; | |
1021 | if (devlink_reload_stats_put(msg, devlink, true)) | |
a254c264 MS |
1022 | goto dev_stats_nest_cancel; |
1023 | ||
1024 | nla_nest_end(msg, dev_stats); | |
bfcd3a46 JP |
1025 | genlmsg_end(msg, hdr); |
1026 | return 0; | |
1027 | ||
a254c264 MS |
1028 | dev_stats_nest_cancel: |
1029 | nla_nest_cancel(msg, dev_stats); | |
bfcd3a46 JP |
1030 | nla_put_failure: |
1031 | genlmsg_cancel(msg, hdr); | |
1032 | return -EMSGSIZE; | |
1033 | } | |
1034 | ||
1035 | static void devlink_notify(struct devlink *devlink, enum devlink_command cmd) | |
1036 | { | |
1037 | struct sk_buff *msg; | |
1038 | int err; | |
1039 | ||
1040 | WARN_ON(cmd != DEVLINK_CMD_NEW && cmd != DEVLINK_CMD_DEL); | |
cf530217 | 1041 | WARN_ON(!xa_get_mark(&devlinks, devlink->index, DEVLINK_REGISTERED)); |
bfcd3a46 JP |
1042 | |
1043 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
1044 | if (!msg) | |
1045 | return; | |
1046 | ||
1047 | err = devlink_nl_fill(msg, devlink, cmd, 0, 0, 0); | |
1048 | if (err) { | |
1049 | nlmsg_free(msg); | |
1050 | return; | |
1051 | } | |
1052 | ||
1053 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), | |
1054 | msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
1055 | } | |
1056 | ||
b9ffcbaf JP |
1057 | static int devlink_nl_port_attrs_put(struct sk_buff *msg, |
1058 | struct devlink_port *devlink_port) | |
1059 | { | |
1060 | struct devlink_port_attrs *attrs = &devlink_port->attrs; | |
1061 | ||
10a429ba | 1062 | if (!devlink_port->attrs_set) |
b9ffcbaf | 1063 | return 0; |
a21cf0a8 DR |
1064 | if (attrs->lanes) { |
1065 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_LANES, attrs->lanes)) | |
1066 | return -EMSGSIZE; | |
1067 | } | |
a0f49b54 DR |
1068 | if (nla_put_u8(msg, DEVLINK_ATTR_PORT_SPLITTABLE, attrs->splittable)) |
1069 | return -EMSGSIZE; | |
5ec1380a JP |
1070 | if (nla_put_u16(msg, DEVLINK_ATTR_PORT_FLAVOUR, attrs->flavour)) |
1071 | return -EMSGSIZE; | |
58b6be41 PP |
1072 | switch (devlink_port->attrs.flavour) { |
1073 | case DEVLINK_PORT_FLAVOUR_PCI_PF: | |
3a2d9588 PP |
1074 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_CONTROLLER_NUMBER, |
1075 | attrs->pci_pf.controller) || | |
1076 | nla_put_u16(msg, DEVLINK_ATTR_PORT_PCI_PF_NUMBER, attrs->pci_pf.pf)) | |
98fd2d65 | 1077 | return -EMSGSIZE; |
05b595e9 PP |
1078 | if (nla_put_u8(msg, DEVLINK_ATTR_PORT_EXTERNAL, attrs->pci_pf.external)) |
1079 | return -EMSGSIZE; | |
58b6be41 PP |
1080 | break; |
1081 | case DEVLINK_PORT_FLAVOUR_PCI_VF: | |
3a2d9588 PP |
1082 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_CONTROLLER_NUMBER, |
1083 | attrs->pci_vf.controller) || | |
1084 | nla_put_u16(msg, DEVLINK_ATTR_PORT_PCI_PF_NUMBER, attrs->pci_vf.pf) || | |
1085 | nla_put_u16(msg, DEVLINK_ATTR_PORT_PCI_VF_NUMBER, attrs->pci_vf.vf)) | |
e41b6bf3 | 1086 | return -EMSGSIZE; |
05b595e9 PP |
1087 | if (nla_put_u8(msg, DEVLINK_ATTR_PORT_EXTERNAL, attrs->pci_vf.external)) |
1088 | return -EMSGSIZE; | |
58b6be41 | 1089 | break; |
b8288837 PP |
1090 | case DEVLINK_PORT_FLAVOUR_PCI_SF: |
1091 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_CONTROLLER_NUMBER, | |
1092 | attrs->pci_sf.controller) || | |
1093 | nla_put_u16(msg, DEVLINK_ATTR_PORT_PCI_PF_NUMBER, | |
1094 | attrs->pci_sf.pf) || | |
1095 | nla_put_u32(msg, DEVLINK_ATTR_PORT_PCI_SF_NUMBER, | |
1096 | attrs->pci_sf.sf)) | |
1097 | return -EMSGSIZE; | |
1098 | break; | |
58b6be41 PP |
1099 | case DEVLINK_PORT_FLAVOUR_PHYSICAL: |
1100 | case DEVLINK_PORT_FLAVOUR_CPU: | |
1101 | case DEVLINK_PORT_FLAVOUR_DSA: | |
1102 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_NUMBER, | |
1103 | attrs->phys.port_number)) | |
1104 | return -EMSGSIZE; | |
1105 | if (!attrs->split) | |
1106 | return 0; | |
1107 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_SPLIT_GROUP, | |
1108 | attrs->phys.port_number)) | |
1109 | return -EMSGSIZE; | |
1110 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_SPLIT_SUBPORT_NUMBER, | |
1111 | attrs->phys.split_subport_number)) | |
1112 | return -EMSGSIZE; | |
1113 | break; | |
1114 | default: | |
1115 | break; | |
98fd2d65 | 1116 | } |
b9ffcbaf JP |
1117 | return 0; |
1118 | } | |
1119 | ||
82564f6c LR |
1120 | static int devlink_port_fn_hw_addr_fill(const struct devlink_ops *ops, |
1121 | struct devlink_port *port, | |
1122 | struct sk_buff *msg, | |
1123 | struct netlink_ext_ack *extack, | |
1124 | bool *msg_updated) | |
1230d948 PP |
1125 | { |
1126 | u8 hw_addr[MAX_ADDR_LEN]; | |
1127 | int hw_addr_len; | |
1128 | int err; | |
1129 | ||
1130 | if (!ops->port_function_hw_addr_get) | |
1131 | return 0; | |
1132 | ||
82564f6c LR |
1133 | err = ops->port_function_hw_addr_get(port, hw_addr, &hw_addr_len, |
1134 | extack); | |
1230d948 PP |
1135 | if (err) { |
1136 | if (err == -EOPNOTSUPP) | |
1137 | return 0; | |
1138 | return err; | |
1139 | } | |
1140 | err = nla_put(msg, DEVLINK_PORT_FUNCTION_ATTR_HW_ADDR, hw_addr_len, hw_addr); | |
1141 | if (err) | |
1142 | return err; | |
1143 | *msg_updated = true; | |
1144 | return 0; | |
1145 | } | |
1146 | ||
4677efc4 | 1147 | static int devlink_nl_rate_fill(struct sk_buff *msg, |
4677efc4 | 1148 | struct devlink_rate *devlink_rate, |
7ca973dc LR |
1149 | enum devlink_command cmd, u32 portid, u32 seq, |
1150 | int flags, struct netlink_ext_ack *extack) | |
4677efc4 | 1151 | { |
7ca973dc | 1152 | struct devlink *devlink = devlink_rate->devlink; |
4677efc4 DL |
1153 | void *hdr; |
1154 | ||
1155 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
1156 | if (!hdr) | |
1157 | return -EMSGSIZE; | |
1158 | ||
1159 | if (devlink_nl_put_handle(msg, devlink)) | |
1160 | goto nla_put_failure; | |
1161 | ||
1162 | if (nla_put_u16(msg, DEVLINK_ATTR_RATE_TYPE, devlink_rate->type)) | |
1163 | goto nla_put_failure; | |
1164 | ||
1165 | if (devlink_rate_is_leaf(devlink_rate)) { | |
1166 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, | |
1167 | devlink_rate->devlink_port->index)) | |
1168 | goto nla_put_failure; | |
a8ecb93e DL |
1169 | } else if (devlink_rate_is_node(devlink_rate)) { |
1170 | if (nla_put_string(msg, DEVLINK_ATTR_RATE_NODE_NAME, | |
1171 | devlink_rate->name)) | |
1172 | goto nla_put_failure; | |
4677efc4 DL |
1173 | } |
1174 | ||
1897db2e DL |
1175 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_RATE_TX_SHARE, |
1176 | devlink_rate->tx_share, DEVLINK_ATTR_PAD)) | |
1177 | goto nla_put_failure; | |
1178 | ||
1179 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_RATE_TX_MAX, | |
1180 | devlink_rate->tx_max, DEVLINK_ATTR_PAD)) | |
1181 | goto nla_put_failure; | |
1182 | ||
d7555984 DL |
1183 | if (devlink_rate->parent) |
1184 | if (nla_put_string(msg, DEVLINK_ATTR_RATE_PARENT_NODE_NAME, | |
1185 | devlink_rate->parent->name)) | |
1186 | goto nla_put_failure; | |
1187 | ||
4677efc4 DL |
1188 | genlmsg_end(msg, hdr); |
1189 | return 0; | |
1190 | ||
1191 | nla_put_failure: | |
1192 | genlmsg_cancel(msg, hdr); | |
1193 | return -EMSGSIZE; | |
1194 | } | |
1195 | ||
a556dded PP |
1196 | static bool |
1197 | devlink_port_fn_state_valid(enum devlink_port_fn_state state) | |
1198 | { | |
1199 | return state == DEVLINK_PORT_FN_STATE_INACTIVE || | |
1200 | state == DEVLINK_PORT_FN_STATE_ACTIVE; | |
1201 | } | |
1202 | ||
1203 | static bool | |
1204 | devlink_port_fn_opstate_valid(enum devlink_port_fn_opstate opstate) | |
1205 | { | |
1206 | return opstate == DEVLINK_PORT_FN_OPSTATE_DETACHED || | |
1207 | opstate == DEVLINK_PORT_FN_OPSTATE_ATTACHED; | |
1208 | } | |
1209 | ||
82564f6c LR |
1210 | static int devlink_port_fn_state_fill(const struct devlink_ops *ops, |
1211 | struct devlink_port *port, | |
1212 | struct sk_buff *msg, | |
1213 | struct netlink_ext_ack *extack, | |
1214 | bool *msg_updated) | |
a556dded PP |
1215 | { |
1216 | enum devlink_port_fn_opstate opstate; | |
1217 | enum devlink_port_fn_state state; | |
1218 | int err; | |
1219 | ||
1220 | if (!ops->port_fn_state_get) | |
1221 | return 0; | |
1222 | ||
82564f6c | 1223 | err = ops->port_fn_state_get(port, &state, &opstate, extack); |
a556dded PP |
1224 | if (err) { |
1225 | if (err == -EOPNOTSUPP) | |
1226 | return 0; | |
1227 | return err; | |
1228 | } | |
1229 | if (!devlink_port_fn_state_valid(state)) { | |
1230 | WARN_ON_ONCE(1); | |
1231 | NL_SET_ERR_MSG_MOD(extack, "Invalid state read from driver"); | |
1232 | return -EINVAL; | |
1233 | } | |
1234 | if (!devlink_port_fn_opstate_valid(opstate)) { | |
1235 | WARN_ON_ONCE(1); | |
1236 | NL_SET_ERR_MSG_MOD(extack, | |
1237 | "Invalid operational state read from driver"); | |
1238 | return -EINVAL; | |
1239 | } | |
1240 | if (nla_put_u8(msg, DEVLINK_PORT_FN_ATTR_STATE, state) || | |
1241 | nla_put_u8(msg, DEVLINK_PORT_FN_ATTR_OPSTATE, opstate)) | |
1242 | return -EMSGSIZE; | |
1243 | *msg_updated = true; | |
1244 | return 0; | |
1245 | } | |
1246 | ||
2a916ecc PP |
1247 | static int |
1248 | devlink_nl_port_function_attrs_put(struct sk_buff *msg, struct devlink_port *port, | |
1249 | struct netlink_ext_ack *extack) | |
1250 | { | |
2a916ecc PP |
1251 | const struct devlink_ops *ops; |
1252 | struct nlattr *function_attr; | |
1230d948 PP |
1253 | bool msg_updated = false; |
1254 | int err; | |
2a916ecc PP |
1255 | |
1256 | function_attr = nla_nest_start_noflag(msg, DEVLINK_ATTR_PORT_FUNCTION); | |
1257 | if (!function_attr) | |
1258 | return -EMSGSIZE; | |
1259 | ||
82564f6c LR |
1260 | ops = port->devlink->ops; |
1261 | err = devlink_port_fn_hw_addr_fill(ops, port, msg, extack, | |
1262 | &msg_updated); | |
a556dded PP |
1263 | if (err) |
1264 | goto out; | |
82564f6c | 1265 | err = devlink_port_fn_state_fill(ops, port, msg, extack, &msg_updated); |
2a916ecc | 1266 | out: |
1230d948 | 1267 | if (err || !msg_updated) |
2a916ecc PP |
1268 | nla_nest_cancel(msg, function_attr); |
1269 | else | |
1270 | nla_nest_end(msg, function_attr); | |
1271 | return err; | |
1272 | } | |
1273 | ||
7ca973dc | 1274 | static int devlink_nl_port_fill(struct sk_buff *msg, |
bfcd3a46 | 1275 | struct devlink_port *devlink_port, |
7ca973dc LR |
1276 | enum devlink_command cmd, u32 portid, u32 seq, |
1277 | int flags, struct netlink_ext_ack *extack) | |
bfcd3a46 | 1278 | { |
7ca973dc | 1279 | struct devlink *devlink = devlink_port->devlink; |
bfcd3a46 JP |
1280 | void *hdr; |
1281 | ||
1282 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
1283 | if (!hdr) | |
1284 | return -EMSGSIZE; | |
1285 | ||
1286 | if (devlink_nl_put_handle(msg, devlink)) | |
1287 | goto nla_put_failure; | |
1288 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, devlink_port->index)) | |
1289 | goto nla_put_failure; | |
b8f97554 | 1290 | |
b187c9b4 PP |
1291 | /* Hold rtnl lock while accessing port's netdev attributes. */ |
1292 | rtnl_lock(); | |
0f420b6c | 1293 | spin_lock_bh(&devlink_port->type_lock); |
bfcd3a46 | 1294 | if (nla_put_u16(msg, DEVLINK_ATTR_PORT_TYPE, devlink_port->type)) |
b8f97554 | 1295 | goto nla_put_failure_type_locked; |
bfcd3a46 JP |
1296 | if (devlink_port->desired_type != DEVLINK_PORT_TYPE_NOTSET && |
1297 | nla_put_u16(msg, DEVLINK_ATTR_PORT_DESIRED_TYPE, | |
1298 | devlink_port->desired_type)) | |
b8f97554 | 1299 | goto nla_put_failure_type_locked; |
bfcd3a46 | 1300 | if (devlink_port->type == DEVLINK_PORT_TYPE_ETH) { |
a7b43649 | 1301 | struct net *net = devlink_net(devlink_port->devlink); |
bfcd3a46 JP |
1302 | struct net_device *netdev = devlink_port->type_dev; |
1303 | ||
a7b43649 | 1304 | if (netdev && net_eq(net, dev_net(netdev)) && |
bfcd3a46 JP |
1305 | (nla_put_u32(msg, DEVLINK_ATTR_PORT_NETDEV_IFINDEX, |
1306 | netdev->ifindex) || | |
1307 | nla_put_string(msg, DEVLINK_ATTR_PORT_NETDEV_NAME, | |
1308 | netdev->name))) | |
b8f97554 | 1309 | goto nla_put_failure_type_locked; |
bfcd3a46 JP |
1310 | } |
1311 | if (devlink_port->type == DEVLINK_PORT_TYPE_IB) { | |
1312 | struct ib_device *ibdev = devlink_port->type_dev; | |
1313 | ||
1314 | if (ibdev && | |
1315 | nla_put_string(msg, DEVLINK_ATTR_PORT_IBDEV_NAME, | |
1316 | ibdev->name)) | |
b8f97554 | 1317 | goto nla_put_failure_type_locked; |
bfcd3a46 | 1318 | } |
0f420b6c | 1319 | spin_unlock_bh(&devlink_port->type_lock); |
b187c9b4 | 1320 | rtnl_unlock(); |
b9ffcbaf | 1321 | if (devlink_nl_port_attrs_put(msg, devlink_port)) |
bfcd3a46 | 1322 | goto nla_put_failure; |
2a916ecc PP |
1323 | if (devlink_nl_port_function_attrs_put(msg, devlink_port, extack)) |
1324 | goto nla_put_failure; | |
b8375859 JP |
1325 | if (devlink_port->linecard && |
1326 | nla_put_u32(msg, DEVLINK_ATTR_LINECARD_INDEX, | |
1327 | devlink_port->linecard->index)) | |
1328 | goto nla_put_failure; | |
bfcd3a46 JP |
1329 | |
1330 | genlmsg_end(msg, hdr); | |
1331 | return 0; | |
1332 | ||
b8f97554 | 1333 | nla_put_failure_type_locked: |
0f420b6c | 1334 | spin_unlock_bh(&devlink_port->type_lock); |
b187c9b4 | 1335 | rtnl_unlock(); |
bfcd3a46 JP |
1336 | nla_put_failure: |
1337 | genlmsg_cancel(msg, hdr); | |
1338 | return -EMSGSIZE; | |
1339 | } | |
1340 | ||
1341 | static void devlink_port_notify(struct devlink_port *devlink_port, | |
1342 | enum devlink_command cmd) | |
1343 | { | |
cf530217 | 1344 | struct devlink *devlink = devlink_port->devlink; |
bfcd3a46 JP |
1345 | struct sk_buff *msg; |
1346 | int err; | |
1347 | ||
bfcd3a46 JP |
1348 | WARN_ON(cmd != DEVLINK_CMD_PORT_NEW && cmd != DEVLINK_CMD_PORT_DEL); |
1349 | ||
cf530217 LR |
1350 | if (!xa_get_mark(&devlinks, devlink->index, DEVLINK_REGISTERED)) |
1351 | return; | |
1352 | ||
bfcd3a46 JP |
1353 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
1354 | if (!msg) | |
1355 | return; | |
1356 | ||
7ca973dc | 1357 | err = devlink_nl_port_fill(msg, devlink_port, cmd, 0, 0, 0, NULL); |
bfcd3a46 JP |
1358 | if (err) { |
1359 | nlmsg_free(msg); | |
1360 | return; | |
1361 | } | |
1362 | ||
cf530217 LR |
1363 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), msg, |
1364 | 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
bfcd3a46 JP |
1365 | } |
1366 | ||
4677efc4 DL |
1367 | static void devlink_rate_notify(struct devlink_rate *devlink_rate, |
1368 | enum devlink_command cmd) | |
1369 | { | |
cf530217 | 1370 | struct devlink *devlink = devlink_rate->devlink; |
4677efc4 DL |
1371 | struct sk_buff *msg; |
1372 | int err; | |
1373 | ||
7ca973dc | 1374 | WARN_ON(cmd != DEVLINK_CMD_RATE_NEW && cmd != DEVLINK_CMD_RATE_DEL); |
ef91abfb LR |
1375 | |
1376 | if (!xa_get_mark(&devlinks, devlink->index, DEVLINK_REGISTERED)) | |
1377 | return; | |
4677efc4 DL |
1378 | |
1379 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
1380 | if (!msg) | |
1381 | return; | |
1382 | ||
7ca973dc | 1383 | err = devlink_nl_rate_fill(msg, devlink_rate, cmd, 0, 0, 0, NULL); |
4677efc4 DL |
1384 | if (err) { |
1385 | nlmsg_free(msg); | |
1386 | return; | |
1387 | } | |
1388 | ||
cf530217 LR |
1389 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), msg, |
1390 | 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
4677efc4 DL |
1391 | } |
1392 | ||
1393 | static int devlink_nl_cmd_rate_get_dumpit(struct sk_buff *msg, | |
1394 | struct netlink_callback *cb) | |
1395 | { | |
1396 | struct devlink_rate *devlink_rate; | |
1397 | struct devlink *devlink; | |
1398 | int start = cb->args[0]; | |
11a861d7 | 1399 | unsigned long index; |
4677efc4 DL |
1400 | int idx = 0; |
1401 | int err = 0; | |
1402 | ||
1403 | mutex_lock(&devlink_mutex); | |
294c4f57 | 1404 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
7715023a | 1405 | devl_lock(devlink); |
4677efc4 DL |
1406 | list_for_each_entry(devlink_rate, &devlink->rate_list, list) { |
1407 | enum devlink_command cmd = DEVLINK_CMD_RATE_NEW; | |
1408 | u32 id = NETLINK_CB(cb->skb).portid; | |
1409 | ||
1410 | if (idx < start) { | |
1411 | idx++; | |
1412 | continue; | |
1413 | } | |
7ca973dc | 1414 | err = devlink_nl_rate_fill(msg, devlink_rate, cmd, id, |
4677efc4 DL |
1415 | cb->nlh->nlmsg_seq, |
1416 | NLM_F_MULTI, NULL); | |
1417 | if (err) { | |
7715023a | 1418 | devl_unlock(devlink); |
437ebfd9 | 1419 | devlink_put(devlink); |
4677efc4 DL |
1420 | goto out; |
1421 | } | |
1422 | idx++; | |
1423 | } | |
7715023a | 1424 | devl_unlock(devlink); |
437ebfd9 | 1425 | devlink_put(devlink); |
4677efc4 DL |
1426 | } |
1427 | out: | |
1428 | mutex_unlock(&devlink_mutex); | |
1429 | if (err != -EMSGSIZE) | |
1430 | return err; | |
1431 | ||
1432 | cb->args[0] = idx; | |
1433 | return msg->len; | |
1434 | } | |
1435 | ||
1436 | static int devlink_nl_cmd_rate_get_doit(struct sk_buff *skb, | |
1437 | struct genl_info *info) | |
1438 | { | |
1439 | struct devlink_rate *devlink_rate = info->user_ptr[1]; | |
4677efc4 DL |
1440 | struct sk_buff *msg; |
1441 | int err; | |
1442 | ||
1443 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
1444 | if (!msg) | |
1445 | return -ENOMEM; | |
1446 | ||
7ca973dc | 1447 | err = devlink_nl_rate_fill(msg, devlink_rate, DEVLINK_CMD_RATE_NEW, |
4677efc4 DL |
1448 | info->snd_portid, info->snd_seq, 0, |
1449 | info->extack); | |
1450 | if (err) { | |
1451 | nlmsg_free(msg); | |
1452 | return err; | |
1453 | } | |
1454 | ||
1455 | return genlmsg_reply(msg, info); | |
1456 | } | |
1457 | ||
d7555984 DL |
1458 | static bool |
1459 | devlink_rate_is_parent_node(struct devlink_rate *devlink_rate, | |
1460 | struct devlink_rate *parent) | |
1461 | { | |
1462 | while (parent) { | |
1463 | if (parent == devlink_rate) | |
1464 | return true; | |
1465 | parent = parent->parent; | |
1466 | } | |
1467 | return false; | |
1468 | } | |
1469 | ||
bfcd3a46 JP |
1470 | static int devlink_nl_cmd_get_doit(struct sk_buff *skb, struct genl_info *info) |
1471 | { | |
1472 | struct devlink *devlink = info->user_ptr[0]; | |
1473 | struct sk_buff *msg; | |
1474 | int err; | |
1475 | ||
1476 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
1477 | if (!msg) | |
1478 | return -ENOMEM; | |
1479 | ||
1480 | err = devlink_nl_fill(msg, devlink, DEVLINK_CMD_NEW, | |
1481 | info->snd_portid, info->snd_seq, 0); | |
1482 | if (err) { | |
1483 | nlmsg_free(msg); | |
1484 | return err; | |
1485 | } | |
1486 | ||
1487 | return genlmsg_reply(msg, info); | |
1488 | } | |
1489 | ||
1490 | static int devlink_nl_cmd_get_dumpit(struct sk_buff *msg, | |
1491 | struct netlink_callback *cb) | |
1492 | { | |
1493 | struct devlink *devlink; | |
1494 | int start = cb->args[0]; | |
11a861d7 | 1495 | unsigned long index; |
bfcd3a46 JP |
1496 | int idx = 0; |
1497 | int err; | |
1498 | ||
1499 | mutex_lock(&devlink_mutex); | |
294c4f57 | 1500 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
bfcd3a46 JP |
1501 | if (idx < start) { |
1502 | idx++; | |
437ebfd9 | 1503 | devlink_put(devlink); |
bfcd3a46 JP |
1504 | continue; |
1505 | } | |
437ebfd9 | 1506 | |
bfcd3a46 JP |
1507 | err = devlink_nl_fill(msg, devlink, DEVLINK_CMD_NEW, |
1508 | NETLINK_CB(cb->skb).portid, | |
1509 | cb->nlh->nlmsg_seq, NLM_F_MULTI); | |
437ebfd9 | 1510 | devlink_put(devlink); |
bfcd3a46 JP |
1511 | if (err) |
1512 | goto out; | |
1513 | idx++; | |
1514 | } | |
1515 | out: | |
1516 | mutex_unlock(&devlink_mutex); | |
1517 | ||
1518 | cb->args[0] = idx; | |
1519 | return msg->len; | |
1520 | } | |
1521 | ||
1522 | static int devlink_nl_cmd_port_get_doit(struct sk_buff *skb, | |
1523 | struct genl_info *info) | |
1524 | { | |
637989b5 | 1525 | struct devlink_port *devlink_port = info->user_ptr[1]; |
bfcd3a46 JP |
1526 | struct sk_buff *msg; |
1527 | int err; | |
1528 | ||
1529 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
1530 | if (!msg) | |
1531 | return -ENOMEM; | |
1532 | ||
7ca973dc | 1533 | err = devlink_nl_port_fill(msg, devlink_port, DEVLINK_CMD_PORT_NEW, |
a829eb0d PP |
1534 | info->snd_portid, info->snd_seq, 0, |
1535 | info->extack); | |
bfcd3a46 JP |
1536 | if (err) { |
1537 | nlmsg_free(msg); | |
1538 | return err; | |
1539 | } | |
1540 | ||
1541 | return genlmsg_reply(msg, info); | |
1542 | } | |
1543 | ||
1544 | static int devlink_nl_cmd_port_get_dumpit(struct sk_buff *msg, | |
1545 | struct netlink_callback *cb) | |
1546 | { | |
1547 | struct devlink *devlink; | |
1548 | struct devlink_port *devlink_port; | |
1549 | int start = cb->args[0]; | |
11a861d7 | 1550 | unsigned long index; |
bfcd3a46 JP |
1551 | int idx = 0; |
1552 | int err; | |
1553 | ||
1554 | mutex_lock(&devlink_mutex); | |
294c4f57 | 1555 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
7715023a | 1556 | devl_lock(devlink); |
bfcd3a46 JP |
1557 | list_for_each_entry(devlink_port, &devlink->port_list, list) { |
1558 | if (idx < start) { | |
1559 | idx++; | |
1560 | continue; | |
1561 | } | |
7ca973dc | 1562 | err = devlink_nl_port_fill(msg, devlink_port, |
bfcd3a46 JP |
1563 | DEVLINK_CMD_NEW, |
1564 | NETLINK_CB(cb->skb).portid, | |
1565 | cb->nlh->nlmsg_seq, | |
7ca973dc | 1566 | NLM_F_MULTI, cb->extack); |
2406e7e5 | 1567 | if (err) { |
7715023a | 1568 | devl_unlock(devlink); |
437ebfd9 | 1569 | devlink_put(devlink); |
bfcd3a46 | 1570 | goto out; |
2406e7e5 | 1571 | } |
bfcd3a46 JP |
1572 | idx++; |
1573 | } | |
7715023a | 1574 | devl_unlock(devlink); |
437ebfd9 | 1575 | devlink_put(devlink); |
bfcd3a46 JP |
1576 | } |
1577 | out: | |
bfcd3a46 JP |
1578 | mutex_unlock(&devlink_mutex); |
1579 | ||
1580 | cb->args[0] = idx; | |
1581 | return msg->len; | |
1582 | } | |
1583 | ||
82564f6c | 1584 | static int devlink_port_type_set(struct devlink_port *devlink_port, |
bfcd3a46 JP |
1585 | enum devlink_port_type port_type) |
1586 | ||
1587 | { | |
1588 | int err; | |
1589 | ||
2a2b6e36 | 1590 | if (!devlink_port->devlink->ops->port_type_set) |
82564f6c LR |
1591 | return -EOPNOTSUPP; |
1592 | ||
1593 | if (port_type == devlink_port->type) | |
bfcd3a46 | 1594 | return 0; |
82564f6c LR |
1595 | |
1596 | err = devlink_port->devlink->ops->port_type_set(devlink_port, | |
1597 | port_type); | |
1598 | if (err) | |
1599 | return err; | |
1600 | ||
1601 | devlink_port->desired_type = port_type; | |
1602 | devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_NEW); | |
1603 | return 0; | |
bfcd3a46 JP |
1604 | } |
1605 | ||
82564f6c LR |
1606 | static int devlink_port_function_hw_addr_set(struct devlink_port *port, |
1607 | const struct nlattr *attr, | |
1608 | struct netlink_ext_ack *extack) | |
a1e8ae90 | 1609 | { |
82564f6c | 1610 | const struct devlink_ops *ops = port->devlink->ops; |
a1e8ae90 PP |
1611 | const u8 *hw_addr; |
1612 | int hw_addr_len; | |
a1e8ae90 PP |
1613 | |
1614 | hw_addr = nla_data(attr); | |
1615 | hw_addr_len = nla_len(attr); | |
1616 | if (hw_addr_len > MAX_ADDR_LEN) { | |
1617 | NL_SET_ERR_MSG_MOD(extack, "Port function hardware address too long"); | |
1618 | return -EINVAL; | |
1619 | } | |
1620 | if (port->type == DEVLINK_PORT_TYPE_ETH) { | |
1621 | if (hw_addr_len != ETH_ALEN) { | |
1622 | NL_SET_ERR_MSG_MOD(extack, "Address must be 6 bytes for Ethernet device"); | |
1623 | return -EINVAL; | |
1624 | } | |
1625 | if (!is_unicast_ether_addr(hw_addr)) { | |
1626 | NL_SET_ERR_MSG_MOD(extack, "Non-unicast hardware address unsupported"); | |
1627 | return -EINVAL; | |
1628 | } | |
1629 | } | |
1630 | ||
a1e8ae90 PP |
1631 | if (!ops->port_function_hw_addr_set) { |
1632 | NL_SET_ERR_MSG_MOD(extack, "Port doesn't support function attributes"); | |
1633 | return -EOPNOTSUPP; | |
1634 | } | |
1635 | ||
82564f6c LR |
1636 | return ops->port_function_hw_addr_set(port, hw_addr, hw_addr_len, |
1637 | extack); | |
a1e8ae90 | 1638 | } |
a1e8ae90 | 1639 | |
82564f6c | 1640 | static int devlink_port_fn_state_set(struct devlink_port *port, |
a556dded PP |
1641 | const struct nlattr *attr, |
1642 | struct netlink_ext_ack *extack) | |
1643 | { | |
1644 | enum devlink_port_fn_state state; | |
1645 | const struct devlink_ops *ops; | |
1646 | ||
1647 | state = nla_get_u8(attr); | |
82564f6c | 1648 | ops = port->devlink->ops; |
a556dded PP |
1649 | if (!ops->port_fn_state_set) { |
1650 | NL_SET_ERR_MSG_MOD(extack, | |
1651 | "Function does not support state setting"); | |
1652 | return -EOPNOTSUPP; | |
1653 | } | |
82564f6c | 1654 | return ops->port_fn_state_set(port, state, extack); |
a1e8ae90 PP |
1655 | } |
1656 | ||
82564f6c LR |
1657 | static int devlink_port_function_set(struct devlink_port *port, |
1658 | const struct nlattr *attr, | |
1659 | struct netlink_ext_ack *extack) | |
a1e8ae90 PP |
1660 | { |
1661 | struct nlattr *tb[DEVLINK_PORT_FUNCTION_ATTR_MAX + 1]; | |
1662 | int err; | |
1663 | ||
1664 | err = nla_parse_nested(tb, DEVLINK_PORT_FUNCTION_ATTR_MAX, attr, | |
1665 | devlink_function_nl_policy, extack); | |
1666 | if (err < 0) { | |
1667 | NL_SET_ERR_MSG_MOD(extack, "Fail to parse port function attributes"); | |
1668 | return err; | |
1669 | } | |
1670 | ||
1671 | attr = tb[DEVLINK_PORT_FUNCTION_ATTR_HW_ADDR]; | |
a556dded | 1672 | if (attr) { |
82564f6c | 1673 | err = devlink_port_function_hw_addr_set(port, attr, extack); |
a556dded PP |
1674 | if (err) |
1675 | return err; | |
1676 | } | |
1677 | /* Keep this as the last function attribute set, so that when | |
1678 | * multiple port function attributes are set along with state, | |
1679 | * Those can be applied first before activating the state. | |
1680 | */ | |
1681 | attr = tb[DEVLINK_PORT_FN_ATTR_STATE]; | |
1682 | if (attr) | |
82564f6c | 1683 | err = devlink_port_fn_state_set(port, attr, extack); |
a1e8ae90 | 1684 | |
1230d948 PP |
1685 | if (!err) |
1686 | devlink_port_notify(port, DEVLINK_CMD_PORT_NEW); | |
a1e8ae90 PP |
1687 | return err; |
1688 | } | |
1689 | ||
bfcd3a46 JP |
1690 | static int devlink_nl_cmd_port_set_doit(struct sk_buff *skb, |
1691 | struct genl_info *info) | |
1692 | { | |
637989b5 | 1693 | struct devlink_port *devlink_port = info->user_ptr[1]; |
bfcd3a46 JP |
1694 | int err; |
1695 | ||
1696 | if (info->attrs[DEVLINK_ATTR_PORT_TYPE]) { | |
1697 | enum devlink_port_type port_type; | |
1698 | ||
1699 | port_type = nla_get_u16(info->attrs[DEVLINK_ATTR_PORT_TYPE]); | |
82564f6c | 1700 | err = devlink_port_type_set(devlink_port, port_type); |
bfcd3a46 JP |
1701 | if (err) |
1702 | return err; | |
1703 | } | |
a1e8ae90 PP |
1704 | |
1705 | if (info->attrs[DEVLINK_ATTR_PORT_FUNCTION]) { | |
1706 | struct nlattr *attr = info->attrs[DEVLINK_ATTR_PORT_FUNCTION]; | |
1707 | struct netlink_ext_ack *extack = info->extack; | |
1708 | ||
82564f6c | 1709 | err = devlink_port_function_set(devlink_port, attr, extack); |
a1e8ae90 PP |
1710 | if (err) |
1711 | return err; | |
1712 | } | |
1713 | ||
bfcd3a46 JP |
1714 | return 0; |
1715 | } | |
1716 | ||
bfcd3a46 JP |
1717 | static int devlink_nl_cmd_port_split_doit(struct sk_buff *skb, |
1718 | struct genl_info *info) | |
1719 | { | |
706217c1 | 1720 | struct devlink_port *devlink_port = info->user_ptr[1]; |
bfcd3a46 | 1721 | struct devlink *devlink = info->user_ptr[0]; |
bfcd3a46 JP |
1722 | u32 count; |
1723 | ||
706217c1 | 1724 | if (!info->attrs[DEVLINK_ATTR_PORT_SPLIT_COUNT]) |
bfcd3a46 | 1725 | return -EINVAL; |
706217c1 JK |
1726 | if (!devlink->ops->port_split) |
1727 | return -EOPNOTSUPP; | |
bfcd3a46 | 1728 | |
bfcd3a46 | 1729 | count = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_SPLIT_COUNT]); |
82901ad1 | 1730 | |
82901ad1 DR |
1731 | if (!devlink_port->attrs.splittable) { |
1732 | /* Split ports cannot be split. */ | |
1733 | if (devlink_port->attrs.split) | |
1734 | NL_SET_ERR_MSG_MOD(info->extack, "Port cannot be split further"); | |
1735 | else | |
1736 | NL_SET_ERR_MSG_MOD(info->extack, "Port cannot be split"); | |
1737 | return -EINVAL; | |
1738 | } | |
1739 | ||
1740 | if (count < 2 || !is_power_of_2(count) || count > devlink_port->attrs.lanes) { | |
1741 | NL_SET_ERR_MSG_MOD(info->extack, "Invalid split count"); | |
1742 | return -EINVAL; | |
1743 | } | |
1744 | ||
706217c1 JK |
1745 | return devlink->ops->port_split(devlink, devlink_port, count, |
1746 | info->extack); | |
bfcd3a46 JP |
1747 | } |
1748 | ||
1749 | static int devlink_nl_cmd_port_unsplit_doit(struct sk_buff *skb, | |
1750 | struct genl_info *info) | |
1751 | { | |
706217c1 | 1752 | struct devlink_port *devlink_port = info->user_ptr[1]; |
bfcd3a46 | 1753 | struct devlink *devlink = info->user_ptr[0]; |
bfcd3a46 | 1754 | |
706217c1 JK |
1755 | if (!devlink->ops->port_unsplit) |
1756 | return -EOPNOTSUPP; | |
1757 | return devlink->ops->port_unsplit(devlink, devlink_port, info->extack); | |
bfcd3a46 JP |
1758 | } |
1759 | ||
ced92571 JP |
1760 | static int devlink_port_new_notify(struct devlink *devlink, |
1761 | unsigned int port_index, | |
1762 | struct genl_info *info) | |
cd76dcd6 PP |
1763 | { |
1764 | struct devlink_port *devlink_port; | |
1765 | struct sk_buff *msg; | |
1766 | int err; | |
1767 | ||
1768 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
1769 | if (!msg) | |
1770 | return -ENOMEM; | |
1771 | ||
f0680ef0 | 1772 | lockdep_assert_held(&devlink->lock); |
cd76dcd6 PP |
1773 | devlink_port = devlink_port_get_by_index(devlink, port_index); |
1774 | if (!devlink_port) { | |
1775 | err = -ENODEV; | |
1776 | goto out; | |
1777 | } | |
1778 | ||
7ca973dc LR |
1779 | err = devlink_nl_port_fill(msg, devlink_port, DEVLINK_CMD_NEW, |
1780 | info->snd_portid, info->snd_seq, 0, NULL); | |
cd76dcd6 PP |
1781 | if (err) |
1782 | goto out; | |
1783 | ||
a44c4511 | 1784 | return genlmsg_reply(msg, info); |
cd76dcd6 PP |
1785 | |
1786 | out: | |
cd76dcd6 PP |
1787 | nlmsg_free(msg); |
1788 | return err; | |
1789 | } | |
1790 | ||
1791 | static int devlink_nl_cmd_port_new_doit(struct sk_buff *skb, | |
1792 | struct genl_info *info) | |
1793 | { | |
1794 | struct netlink_ext_ack *extack = info->extack; | |
1795 | struct devlink_port_new_attrs new_attrs = {}; | |
1796 | struct devlink *devlink = info->user_ptr[0]; | |
1797 | unsigned int new_port_index; | |
1798 | int err; | |
1799 | ||
1800 | if (!devlink->ops->port_new || !devlink->ops->port_del) | |
1801 | return -EOPNOTSUPP; | |
1802 | ||
1803 | if (!info->attrs[DEVLINK_ATTR_PORT_FLAVOUR] || | |
1804 | !info->attrs[DEVLINK_ATTR_PORT_PCI_PF_NUMBER]) { | |
1805 | NL_SET_ERR_MSG_MOD(extack, "Port flavour or PCI PF are not specified"); | |
1806 | return -EINVAL; | |
1807 | } | |
1808 | new_attrs.flavour = nla_get_u16(info->attrs[DEVLINK_ATTR_PORT_FLAVOUR]); | |
1809 | new_attrs.pfnum = | |
1810 | nla_get_u16(info->attrs[DEVLINK_ATTR_PORT_PCI_PF_NUMBER]); | |
1811 | ||
1812 | if (info->attrs[DEVLINK_ATTR_PORT_INDEX]) { | |
1813 | /* Port index of the new port being created by driver. */ | |
1814 | new_attrs.port_index = | |
1815 | nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_INDEX]); | |
1816 | new_attrs.port_index_valid = true; | |
1817 | } | |
1818 | if (info->attrs[DEVLINK_ATTR_PORT_CONTROLLER_NUMBER]) { | |
1819 | new_attrs.controller = | |
1820 | nla_get_u16(info->attrs[DEVLINK_ATTR_PORT_CONTROLLER_NUMBER]); | |
1821 | new_attrs.controller_valid = true; | |
1822 | } | |
1823 | if (new_attrs.flavour == DEVLINK_PORT_FLAVOUR_PCI_SF && | |
1824 | info->attrs[DEVLINK_ATTR_PORT_PCI_SF_NUMBER]) { | |
1825 | new_attrs.sfnum = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_PCI_SF_NUMBER]); | |
1826 | new_attrs.sfnum_valid = true; | |
1827 | } | |
1828 | ||
1829 | err = devlink->ops->port_new(devlink, &new_attrs, extack, | |
1830 | &new_port_index); | |
1831 | if (err) | |
1832 | return err; | |
1833 | ||
ced92571 | 1834 | err = devlink_port_new_notify(devlink, new_port_index, info); |
cd76dcd6 PP |
1835 | if (err && err != -ENODEV) { |
1836 | /* Fail to send the response; destroy newly created port. */ | |
1837 | devlink->ops->port_del(devlink, new_port_index, extack); | |
1838 | } | |
1839 | return err; | |
1840 | } | |
1841 | ||
1842 | static int devlink_nl_cmd_port_del_doit(struct sk_buff *skb, | |
1843 | struct genl_info *info) | |
1844 | { | |
1845 | struct netlink_ext_ack *extack = info->extack; | |
1846 | struct devlink *devlink = info->user_ptr[0]; | |
1847 | unsigned int port_index; | |
1848 | ||
1849 | if (!devlink->ops->port_del) | |
1850 | return -EOPNOTSUPP; | |
1851 | ||
1852 | if (!info->attrs[DEVLINK_ATTR_PORT_INDEX]) { | |
1853 | NL_SET_ERR_MSG_MOD(extack, "Port index is not specified"); | |
1854 | return -EINVAL; | |
1855 | } | |
1856 | port_index = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_INDEX]); | |
1857 | ||
1858 | return devlink->ops->port_del(devlink, port_index, extack); | |
1859 | } | |
1860 | ||
d7555984 DL |
1861 | static int |
1862 | devlink_nl_rate_parent_node_set(struct devlink_rate *devlink_rate, | |
1863 | struct genl_info *info, | |
1864 | struct nlattr *nla_parent) | |
1865 | { | |
1866 | struct devlink *devlink = devlink_rate->devlink; | |
1867 | const char *parent_name = nla_data(nla_parent); | |
1868 | const struct devlink_ops *ops = devlink->ops; | |
1869 | size_t len = strlen(parent_name); | |
1870 | struct devlink_rate *parent; | |
1871 | int err = -EOPNOTSUPP; | |
1872 | ||
1873 | parent = devlink_rate->parent; | |
1874 | if (parent && len) { | |
1875 | NL_SET_ERR_MSG_MOD(info->extack, "Rate object already has parent."); | |
1876 | return -EBUSY; | |
1877 | } else if (parent && !len) { | |
1878 | if (devlink_rate_is_leaf(devlink_rate)) | |
1879 | err = ops->rate_leaf_parent_set(devlink_rate, NULL, | |
1880 | devlink_rate->priv, NULL, | |
1881 | info->extack); | |
1882 | else if (devlink_rate_is_node(devlink_rate)) | |
1883 | err = ops->rate_node_parent_set(devlink_rate, NULL, | |
1884 | devlink_rate->priv, NULL, | |
1885 | info->extack); | |
1886 | if (err) | |
1887 | return err; | |
1888 | ||
1889 | refcount_dec(&parent->refcnt); | |
1890 | devlink_rate->parent = NULL; | |
1891 | } else if (!parent && len) { | |
1892 | parent = devlink_rate_node_get_by_name(devlink, parent_name); | |
1893 | if (IS_ERR(parent)) | |
1894 | return -ENODEV; | |
1895 | ||
1896 | if (parent == devlink_rate) { | |
1897 | NL_SET_ERR_MSG_MOD(info->extack, "Parent to self is not allowed"); | |
1898 | return -EINVAL; | |
1899 | } | |
1900 | ||
1901 | if (devlink_rate_is_node(devlink_rate) && | |
1902 | devlink_rate_is_parent_node(devlink_rate, parent->parent)) { | |
1903 | NL_SET_ERR_MSG_MOD(info->extack, "Node is already a parent of parent node."); | |
1904 | return -EEXIST; | |
1905 | } | |
1906 | ||
1907 | if (devlink_rate_is_leaf(devlink_rate)) | |
1908 | err = ops->rate_leaf_parent_set(devlink_rate, parent, | |
1909 | devlink_rate->priv, parent->priv, | |
1910 | info->extack); | |
1911 | else if (devlink_rate_is_node(devlink_rate)) | |
1912 | err = ops->rate_node_parent_set(devlink_rate, parent, | |
1913 | devlink_rate->priv, parent->priv, | |
1914 | info->extack); | |
1915 | if (err) | |
1916 | return err; | |
1917 | ||
1918 | refcount_inc(&parent->refcnt); | |
1919 | devlink_rate->parent = parent; | |
1920 | } | |
1921 | ||
1922 | return 0; | |
1923 | } | |
1924 | ||
1897db2e DL |
1925 | static int devlink_nl_rate_set(struct devlink_rate *devlink_rate, |
1926 | const struct devlink_ops *ops, | |
1927 | struct genl_info *info) | |
1928 | { | |
d7555984 | 1929 | struct nlattr *nla_parent, **attrs = info->attrs; |
a8ecb93e | 1930 | int err = -EOPNOTSUPP; |
1897db2e | 1931 | u64 rate; |
1897db2e DL |
1932 | |
1933 | if (attrs[DEVLINK_ATTR_RATE_TX_SHARE]) { | |
1934 | rate = nla_get_u64(attrs[DEVLINK_ATTR_RATE_TX_SHARE]); | |
a8ecb93e DL |
1935 | if (devlink_rate_is_leaf(devlink_rate)) |
1936 | err = ops->rate_leaf_tx_share_set(devlink_rate, devlink_rate->priv, | |
1937 | rate, info->extack); | |
1938 | else if (devlink_rate_is_node(devlink_rate)) | |
1939 | err = ops->rate_node_tx_share_set(devlink_rate, devlink_rate->priv, | |
1940 | rate, info->extack); | |
1897db2e DL |
1941 | if (err) |
1942 | return err; | |
1943 | devlink_rate->tx_share = rate; | |
1944 | } | |
1945 | ||
1946 | if (attrs[DEVLINK_ATTR_RATE_TX_MAX]) { | |
1947 | rate = nla_get_u64(attrs[DEVLINK_ATTR_RATE_TX_MAX]); | |
a8ecb93e DL |
1948 | if (devlink_rate_is_leaf(devlink_rate)) |
1949 | err = ops->rate_leaf_tx_max_set(devlink_rate, devlink_rate->priv, | |
1950 | rate, info->extack); | |
1951 | else if (devlink_rate_is_node(devlink_rate)) | |
1952 | err = ops->rate_node_tx_max_set(devlink_rate, devlink_rate->priv, | |
1953 | rate, info->extack); | |
1897db2e DL |
1954 | if (err) |
1955 | return err; | |
1956 | devlink_rate->tx_max = rate; | |
1957 | } | |
1958 | ||
d7555984 DL |
1959 | nla_parent = attrs[DEVLINK_ATTR_RATE_PARENT_NODE_NAME]; |
1960 | if (nla_parent) { | |
1961 | err = devlink_nl_rate_parent_node_set(devlink_rate, info, | |
1962 | nla_parent); | |
1963 | if (err) | |
1964 | return err; | |
1965 | } | |
1966 | ||
1897db2e DL |
1967 | return 0; |
1968 | } | |
1969 | ||
1970 | static bool devlink_rate_set_ops_supported(const struct devlink_ops *ops, | |
1971 | struct genl_info *info, | |
1972 | enum devlink_rate_type type) | |
1973 | { | |
1974 | struct nlattr **attrs = info->attrs; | |
1975 | ||
1976 | if (type == DEVLINK_RATE_TYPE_LEAF) { | |
1977 | if (attrs[DEVLINK_ATTR_RATE_TX_SHARE] && !ops->rate_leaf_tx_share_set) { | |
1978 | NL_SET_ERR_MSG_MOD(info->extack, "TX share set isn't supported for the leafs"); | |
1979 | return false; | |
1980 | } | |
1981 | if (attrs[DEVLINK_ATTR_RATE_TX_MAX] && !ops->rate_leaf_tx_max_set) { | |
1982 | NL_SET_ERR_MSG_MOD(info->extack, "TX max set isn't supported for the leafs"); | |
1983 | return false; | |
1984 | } | |
d7555984 DL |
1985 | if (attrs[DEVLINK_ATTR_RATE_PARENT_NODE_NAME] && |
1986 | !ops->rate_leaf_parent_set) { | |
1987 | NL_SET_ERR_MSG_MOD(info->extack, "Parent set isn't supported for the leafs"); | |
1988 | return false; | |
1989 | } | |
a8ecb93e DL |
1990 | } else if (type == DEVLINK_RATE_TYPE_NODE) { |
1991 | if (attrs[DEVLINK_ATTR_RATE_TX_SHARE] && !ops->rate_node_tx_share_set) { | |
1992 | NL_SET_ERR_MSG_MOD(info->extack, "TX share set isn't supported for the nodes"); | |
1993 | return false; | |
1994 | } | |
1995 | if (attrs[DEVLINK_ATTR_RATE_TX_MAX] && !ops->rate_node_tx_max_set) { | |
1996 | NL_SET_ERR_MSG_MOD(info->extack, "TX max set isn't supported for the nodes"); | |
1997 | return false; | |
1998 | } | |
d7555984 DL |
1999 | if (attrs[DEVLINK_ATTR_RATE_PARENT_NODE_NAME] && |
2000 | !ops->rate_node_parent_set) { | |
2001 | NL_SET_ERR_MSG_MOD(info->extack, "Parent set isn't supported for the nodes"); | |
2002 | return false; | |
2003 | } | |
1897db2e | 2004 | } else { |
711d1dee | 2005 | WARN(1, "Unknown type of rate object"); |
1897db2e DL |
2006 | return false; |
2007 | } | |
2008 | ||
2009 | return true; | |
2010 | } | |
2011 | ||
2012 | static int devlink_nl_cmd_rate_set_doit(struct sk_buff *skb, | |
2013 | struct genl_info *info) | |
2014 | { | |
2015 | struct devlink_rate *devlink_rate = info->user_ptr[1]; | |
2016 | struct devlink *devlink = devlink_rate->devlink; | |
2017 | const struct devlink_ops *ops = devlink->ops; | |
2018 | int err; | |
2019 | ||
2020 | if (!ops || !devlink_rate_set_ops_supported(ops, info, devlink_rate->type)) | |
2021 | return -EOPNOTSUPP; | |
2022 | ||
2023 | err = devlink_nl_rate_set(devlink_rate, ops, info); | |
2024 | ||
2025 | if (!err) | |
2026 | devlink_rate_notify(devlink_rate, DEVLINK_CMD_RATE_NEW); | |
2027 | return err; | |
2028 | } | |
2029 | ||
a8ecb93e DL |
2030 | static int devlink_nl_cmd_rate_new_doit(struct sk_buff *skb, |
2031 | struct genl_info *info) | |
2032 | { | |
2033 | struct devlink *devlink = info->user_ptr[0]; | |
2034 | struct devlink_rate *rate_node; | |
2035 | const struct devlink_ops *ops; | |
2036 | int err; | |
2037 | ||
2038 | ops = devlink->ops; | |
2039 | if (!ops || !ops->rate_node_new || !ops->rate_node_del) { | |
2040 | NL_SET_ERR_MSG_MOD(info->extack, "Rate nodes aren't supported"); | |
2041 | return -EOPNOTSUPP; | |
2042 | } | |
2043 | ||
2044 | if (!devlink_rate_set_ops_supported(ops, info, DEVLINK_RATE_TYPE_NODE)) | |
2045 | return -EOPNOTSUPP; | |
2046 | ||
2047 | rate_node = devlink_rate_node_get_from_attrs(devlink, info->attrs); | |
2048 | if (!IS_ERR(rate_node)) | |
2049 | return -EEXIST; | |
2050 | else if (rate_node == ERR_PTR(-EINVAL)) | |
2051 | return -EINVAL; | |
2052 | ||
2053 | rate_node = kzalloc(sizeof(*rate_node), GFP_KERNEL); | |
2054 | if (!rate_node) | |
2055 | return -ENOMEM; | |
2056 | ||
2057 | rate_node->devlink = devlink; | |
2058 | rate_node->type = DEVLINK_RATE_TYPE_NODE; | |
2059 | rate_node->name = nla_strdup(info->attrs[DEVLINK_ATTR_RATE_NODE_NAME], GFP_KERNEL); | |
2060 | if (!rate_node->name) { | |
2061 | err = -ENOMEM; | |
2062 | goto err_strdup; | |
2063 | } | |
2064 | ||
2065 | err = ops->rate_node_new(rate_node, &rate_node->priv, info->extack); | |
2066 | if (err) | |
2067 | goto err_node_new; | |
2068 | ||
2069 | err = devlink_nl_rate_set(rate_node, ops, info); | |
2070 | if (err) | |
2071 | goto err_rate_set; | |
2072 | ||
d7555984 | 2073 | refcount_set(&rate_node->refcnt, 1); |
a8ecb93e DL |
2074 | list_add(&rate_node->list, &devlink->rate_list); |
2075 | devlink_rate_notify(rate_node, DEVLINK_CMD_RATE_NEW); | |
2076 | return 0; | |
2077 | ||
2078 | err_rate_set: | |
2079 | ops->rate_node_del(rate_node, rate_node->priv, info->extack); | |
2080 | err_node_new: | |
2081 | kfree(rate_node->name); | |
2082 | err_strdup: | |
2083 | kfree(rate_node); | |
2084 | return err; | |
2085 | } | |
2086 | ||
2087 | static int devlink_nl_cmd_rate_del_doit(struct sk_buff *skb, | |
2088 | struct genl_info *info) | |
2089 | { | |
2090 | struct devlink_rate *rate_node = info->user_ptr[1]; | |
2091 | struct devlink *devlink = rate_node->devlink; | |
2092 | const struct devlink_ops *ops = devlink->ops; | |
2093 | int err; | |
2094 | ||
d7555984 DL |
2095 | if (refcount_read(&rate_node->refcnt) > 1) { |
2096 | NL_SET_ERR_MSG_MOD(info->extack, "Node has children. Cannot delete node."); | |
2097 | return -EBUSY; | |
2098 | } | |
2099 | ||
a8ecb93e DL |
2100 | devlink_rate_notify(rate_node, DEVLINK_CMD_RATE_DEL); |
2101 | err = ops->rate_node_del(rate_node, rate_node->priv, info->extack); | |
d7555984 DL |
2102 | if (rate_node->parent) |
2103 | refcount_dec(&rate_node->parent->refcnt); | |
a8ecb93e DL |
2104 | list_del(&rate_node->list); |
2105 | kfree(rate_node->name); | |
2106 | kfree(rate_node); | |
2107 | return err; | |
2108 | } | |
2109 | ||
fcdc8ce2 JP |
2110 | struct devlink_linecard_type { |
2111 | const char *type; | |
2112 | const void *priv; | |
2113 | }; | |
2114 | ||
c246f9b5 JP |
2115 | static int devlink_nl_linecard_fill(struct sk_buff *msg, |
2116 | struct devlink *devlink, | |
2117 | struct devlink_linecard *linecard, | |
2118 | enum devlink_command cmd, u32 portid, | |
2119 | u32 seq, int flags, | |
2120 | struct netlink_ext_ack *extack) | |
2121 | { | |
fcdc8ce2 JP |
2122 | struct devlink_linecard_type *linecard_type; |
2123 | struct nlattr *attr; | |
c246f9b5 | 2124 | void *hdr; |
fcdc8ce2 | 2125 | int i; |
c246f9b5 JP |
2126 | |
2127 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
2128 | if (!hdr) | |
2129 | return -EMSGSIZE; | |
2130 | ||
2131 | if (devlink_nl_put_handle(msg, devlink)) | |
2132 | goto nla_put_failure; | |
2133 | if (nla_put_u32(msg, DEVLINK_ATTR_LINECARD_INDEX, linecard->index)) | |
2134 | goto nla_put_failure; | |
fcdc8ce2 JP |
2135 | if (nla_put_u8(msg, DEVLINK_ATTR_LINECARD_STATE, linecard->state)) |
2136 | goto nla_put_failure; | |
2137 | if (linecard->type && | |
2138 | nla_put_string(msg, DEVLINK_ATTR_LINECARD_TYPE, linecard->type)) | |
2139 | goto nla_put_failure; | |
2140 | ||
2141 | if (linecard->types_count) { | |
2142 | attr = nla_nest_start(msg, | |
2143 | DEVLINK_ATTR_LINECARD_SUPPORTED_TYPES); | |
2144 | if (!attr) | |
2145 | goto nla_put_failure; | |
2146 | for (i = 0; i < linecard->types_count; i++) { | |
2147 | linecard_type = &linecard->types[i]; | |
2148 | if (nla_put_string(msg, DEVLINK_ATTR_LINECARD_TYPE, | |
2149 | linecard_type->type)) { | |
2150 | nla_nest_cancel(msg, attr); | |
2151 | goto nla_put_failure; | |
2152 | } | |
2153 | } | |
2154 | nla_nest_end(msg, attr); | |
2155 | } | |
c246f9b5 | 2156 | |
7b2d9a1a JP |
2157 | if (linecard->nested_devlink && |
2158 | devlink_nl_put_nested_handle(msg, linecard->nested_devlink)) | |
2159 | goto nla_put_failure; | |
2160 | ||
c246f9b5 JP |
2161 | genlmsg_end(msg, hdr); |
2162 | return 0; | |
2163 | ||
2164 | nla_put_failure: | |
2165 | genlmsg_cancel(msg, hdr); | |
2166 | return -EMSGSIZE; | |
2167 | } | |
2168 | ||
2169 | static void devlink_linecard_notify(struct devlink_linecard *linecard, | |
2170 | enum devlink_command cmd) | |
2171 | { | |
2172 | struct devlink *devlink = linecard->devlink; | |
2173 | struct sk_buff *msg; | |
2174 | int err; | |
2175 | ||
2176 | WARN_ON(cmd != DEVLINK_CMD_LINECARD_NEW && | |
2177 | cmd != DEVLINK_CMD_LINECARD_DEL); | |
2178 | ||
2179 | if (!xa_get_mark(&devlinks, devlink->index, DEVLINK_REGISTERED)) | |
2180 | return; | |
2181 | ||
2182 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
2183 | if (!msg) | |
2184 | return; | |
2185 | ||
2186 | err = devlink_nl_linecard_fill(msg, devlink, linecard, cmd, 0, 0, 0, | |
2187 | NULL); | |
2188 | if (err) { | |
2189 | nlmsg_free(msg); | |
2190 | return; | |
2191 | } | |
2192 | ||
2193 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), | |
2194 | msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
2195 | } | |
2196 | ||
2197 | static int devlink_nl_cmd_linecard_get_doit(struct sk_buff *skb, | |
2198 | struct genl_info *info) | |
2199 | { | |
2200 | struct devlink_linecard *linecard = info->user_ptr[1]; | |
2201 | struct devlink *devlink = linecard->devlink; | |
2202 | struct sk_buff *msg; | |
2203 | int err; | |
2204 | ||
2205 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
2206 | if (!msg) | |
2207 | return -ENOMEM; | |
2208 | ||
fcdc8ce2 | 2209 | mutex_lock(&linecard->state_lock); |
c246f9b5 JP |
2210 | err = devlink_nl_linecard_fill(msg, devlink, linecard, |
2211 | DEVLINK_CMD_LINECARD_NEW, | |
2212 | info->snd_portid, info->snd_seq, 0, | |
2213 | info->extack); | |
fcdc8ce2 | 2214 | mutex_unlock(&linecard->state_lock); |
c246f9b5 JP |
2215 | if (err) { |
2216 | nlmsg_free(msg); | |
2217 | return err; | |
2218 | } | |
2219 | ||
2220 | return genlmsg_reply(msg, info); | |
2221 | } | |
2222 | ||
2223 | static int devlink_nl_cmd_linecard_get_dumpit(struct sk_buff *msg, | |
2224 | struct netlink_callback *cb) | |
2225 | { | |
2226 | struct devlink_linecard *linecard; | |
2227 | struct devlink *devlink; | |
2228 | int start = cb->args[0]; | |
2229 | unsigned long index; | |
2230 | int idx = 0; | |
2231 | int err; | |
2232 | ||
2233 | mutex_lock(&devlink_mutex); | |
294c4f57 | 2234 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
c246f9b5 JP |
2235 | mutex_lock(&devlink->linecards_lock); |
2236 | list_for_each_entry(linecard, &devlink->linecard_list, list) { | |
2237 | if (idx < start) { | |
2238 | idx++; | |
2239 | continue; | |
2240 | } | |
fcdc8ce2 | 2241 | mutex_lock(&linecard->state_lock); |
c246f9b5 JP |
2242 | err = devlink_nl_linecard_fill(msg, devlink, linecard, |
2243 | DEVLINK_CMD_LINECARD_NEW, | |
2244 | NETLINK_CB(cb->skb).portid, | |
2245 | cb->nlh->nlmsg_seq, | |
2246 | NLM_F_MULTI, | |
2247 | cb->extack); | |
fcdc8ce2 | 2248 | mutex_unlock(&linecard->state_lock); |
c246f9b5 JP |
2249 | if (err) { |
2250 | mutex_unlock(&devlink->linecards_lock); | |
2251 | devlink_put(devlink); | |
2252 | goto out; | |
2253 | } | |
2254 | idx++; | |
2255 | } | |
2256 | mutex_unlock(&devlink->linecards_lock); | |
c246f9b5 JP |
2257 | devlink_put(devlink); |
2258 | } | |
2259 | out: | |
2260 | mutex_unlock(&devlink_mutex); | |
2261 | ||
2262 | cb->args[0] = idx; | |
2263 | return msg->len; | |
2264 | } | |
2265 | ||
fcdc8ce2 JP |
2266 | static struct devlink_linecard_type * |
2267 | devlink_linecard_type_lookup(struct devlink_linecard *linecard, | |
2268 | const char *type) | |
2269 | { | |
2270 | struct devlink_linecard_type *linecard_type; | |
2271 | int i; | |
2272 | ||
2273 | for (i = 0; i < linecard->types_count; i++) { | |
2274 | linecard_type = &linecard->types[i]; | |
2275 | if (!strcmp(type, linecard_type->type)) | |
2276 | return linecard_type; | |
2277 | } | |
2278 | return NULL; | |
2279 | } | |
2280 | ||
2281 | static int devlink_linecard_type_set(struct devlink_linecard *linecard, | |
2282 | const char *type, | |
2283 | struct netlink_ext_ack *extack) | |
2284 | { | |
2285 | const struct devlink_linecard_ops *ops = linecard->ops; | |
2286 | struct devlink_linecard_type *linecard_type; | |
2287 | int err; | |
2288 | ||
2289 | mutex_lock(&linecard->state_lock); | |
2290 | if (linecard->state == DEVLINK_LINECARD_STATE_PROVISIONING) { | |
2291 | NL_SET_ERR_MSG_MOD(extack, "Line card is currently being provisioned"); | |
2292 | err = -EBUSY; | |
2293 | goto out; | |
2294 | } | |
2295 | if (linecard->state == DEVLINK_LINECARD_STATE_UNPROVISIONING) { | |
2296 | NL_SET_ERR_MSG_MOD(extack, "Line card is currently being unprovisioned"); | |
2297 | err = -EBUSY; | |
2298 | goto out; | |
2299 | } | |
2300 | ||
2301 | linecard_type = devlink_linecard_type_lookup(linecard, type); | |
2302 | if (!linecard_type) { | |
2303 | NL_SET_ERR_MSG_MOD(extack, "Unsupported line card type provided"); | |
2304 | err = -EINVAL; | |
2305 | goto out; | |
2306 | } | |
2307 | ||
2308 | if (linecard->state != DEVLINK_LINECARD_STATE_UNPROVISIONED && | |
2309 | linecard->state != DEVLINK_LINECARD_STATE_PROVISIONING_FAILED) { | |
2310 | NL_SET_ERR_MSG_MOD(extack, "Line card already provisioned"); | |
2311 | err = -EBUSY; | |
2312 | /* Check if the line card is provisioned in the same | |
2313 | * way the user asks. In case it is, make the operation | |
2314 | * to return success. | |
2315 | */ | |
2316 | if (ops->same_provision && | |
2317 | ops->same_provision(linecard, linecard->priv, | |
2318 | linecard_type->type, | |
2319 | linecard_type->priv)) | |
2320 | err = 0; | |
2321 | goto out; | |
2322 | } | |
2323 | ||
2324 | linecard->state = DEVLINK_LINECARD_STATE_PROVISIONING; | |
2325 | linecard->type = linecard_type->type; | |
2326 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
2327 | mutex_unlock(&linecard->state_lock); | |
2328 | err = ops->provision(linecard, linecard->priv, linecard_type->type, | |
2329 | linecard_type->priv, extack); | |
2330 | if (err) { | |
2331 | /* Provisioning failed. Assume the linecard is unprovisioned | |
2332 | * for future operations. | |
2333 | */ | |
2334 | mutex_lock(&linecard->state_lock); | |
2335 | linecard->state = DEVLINK_LINECARD_STATE_UNPROVISIONED; | |
2336 | linecard->type = NULL; | |
2337 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
2338 | mutex_unlock(&linecard->state_lock); | |
2339 | } | |
2340 | return err; | |
2341 | ||
2342 | out: | |
2343 | mutex_unlock(&linecard->state_lock); | |
2344 | return err; | |
2345 | } | |
2346 | ||
2347 | static int devlink_linecard_type_unset(struct devlink_linecard *linecard, | |
2348 | struct netlink_ext_ack *extack) | |
2349 | { | |
2350 | int err; | |
2351 | ||
2352 | mutex_lock(&linecard->state_lock); | |
2353 | if (linecard->state == DEVLINK_LINECARD_STATE_PROVISIONING) { | |
2354 | NL_SET_ERR_MSG_MOD(extack, "Line card is currently being provisioned"); | |
2355 | err = -EBUSY; | |
2356 | goto out; | |
2357 | } | |
2358 | if (linecard->state == DEVLINK_LINECARD_STATE_UNPROVISIONING) { | |
2359 | NL_SET_ERR_MSG_MOD(extack, "Line card is currently being unprovisioned"); | |
2360 | err = -EBUSY; | |
2361 | goto out; | |
2362 | } | |
2363 | if (linecard->state == DEVLINK_LINECARD_STATE_PROVISIONING_FAILED) { | |
2364 | linecard->state = DEVLINK_LINECARD_STATE_UNPROVISIONED; | |
2365 | linecard->type = NULL; | |
2366 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
2367 | err = 0; | |
2368 | goto out; | |
2369 | } | |
2370 | ||
2371 | if (linecard->state == DEVLINK_LINECARD_STATE_UNPROVISIONED) { | |
2372 | NL_SET_ERR_MSG_MOD(extack, "Line card is not provisioned"); | |
2373 | err = 0; | |
2374 | goto out; | |
2375 | } | |
2376 | linecard->state = DEVLINK_LINECARD_STATE_UNPROVISIONING; | |
2377 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
2378 | mutex_unlock(&linecard->state_lock); | |
2379 | err = linecard->ops->unprovision(linecard, linecard->priv, | |
2380 | extack); | |
2381 | if (err) { | |
2382 | /* Unprovisioning failed. Assume the linecard is unprovisioned | |
2383 | * for future operations. | |
2384 | */ | |
2385 | mutex_lock(&linecard->state_lock); | |
2386 | linecard->state = DEVLINK_LINECARD_STATE_UNPROVISIONED; | |
2387 | linecard->type = NULL; | |
2388 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
2389 | mutex_unlock(&linecard->state_lock); | |
2390 | } | |
2391 | return err; | |
2392 | ||
2393 | out: | |
2394 | mutex_unlock(&linecard->state_lock); | |
2395 | return err; | |
2396 | } | |
2397 | ||
2398 | static int devlink_nl_cmd_linecard_set_doit(struct sk_buff *skb, | |
2399 | struct genl_info *info) | |
2400 | { | |
2401 | struct devlink_linecard *linecard = info->user_ptr[1]; | |
2402 | struct netlink_ext_ack *extack = info->extack; | |
2403 | int err; | |
2404 | ||
2405 | if (info->attrs[DEVLINK_ATTR_LINECARD_TYPE]) { | |
2406 | const char *type; | |
2407 | ||
2408 | type = nla_data(info->attrs[DEVLINK_ATTR_LINECARD_TYPE]); | |
2409 | if (strcmp(type, "")) { | |
2410 | err = devlink_linecard_type_set(linecard, type, extack); | |
2411 | if (err) | |
2412 | return err; | |
2413 | } else { | |
2414 | err = devlink_linecard_type_unset(linecard, extack); | |
2415 | if (err) | |
2416 | return err; | |
2417 | } | |
2418 | } | |
2419 | ||
2420 | return 0; | |
2421 | } | |
2422 | ||
bf797471 JP |
2423 | static int devlink_nl_sb_fill(struct sk_buff *msg, struct devlink *devlink, |
2424 | struct devlink_sb *devlink_sb, | |
2425 | enum devlink_command cmd, u32 portid, | |
2426 | u32 seq, int flags) | |
2427 | { | |
2428 | void *hdr; | |
2429 | ||
2430 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
2431 | if (!hdr) | |
2432 | return -EMSGSIZE; | |
2433 | ||
2434 | if (devlink_nl_put_handle(msg, devlink)) | |
2435 | goto nla_put_failure; | |
2436 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_INDEX, devlink_sb->index)) | |
2437 | goto nla_put_failure; | |
2438 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_SIZE, devlink_sb->size)) | |
2439 | goto nla_put_failure; | |
2440 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_INGRESS_POOL_COUNT, | |
2441 | devlink_sb->ingress_pools_count)) | |
2442 | goto nla_put_failure; | |
2443 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_EGRESS_POOL_COUNT, | |
2444 | devlink_sb->egress_pools_count)) | |
2445 | goto nla_put_failure; | |
2446 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_INGRESS_TC_COUNT, | |
2447 | devlink_sb->ingress_tc_count)) | |
2448 | goto nla_put_failure; | |
2449 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_EGRESS_TC_COUNT, | |
2450 | devlink_sb->egress_tc_count)) | |
2451 | goto nla_put_failure; | |
2452 | ||
2453 | genlmsg_end(msg, hdr); | |
2454 | return 0; | |
2455 | ||
2456 | nla_put_failure: | |
2457 | genlmsg_cancel(msg, hdr); | |
2458 | return -EMSGSIZE; | |
2459 | } | |
2460 | ||
2461 | static int devlink_nl_cmd_sb_get_doit(struct sk_buff *skb, | |
2462 | struct genl_info *info) | |
2463 | { | |
2464 | struct devlink *devlink = info->user_ptr[0]; | |
637989b5 | 2465 | struct devlink_sb *devlink_sb; |
bf797471 JP |
2466 | struct sk_buff *msg; |
2467 | int err; | |
2468 | ||
637989b5 PP |
2469 | devlink_sb = devlink_sb_get_from_info(devlink, info); |
2470 | if (IS_ERR(devlink_sb)) | |
2471 | return PTR_ERR(devlink_sb); | |
2472 | ||
bf797471 JP |
2473 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
2474 | if (!msg) | |
2475 | return -ENOMEM; | |
2476 | ||
2477 | err = devlink_nl_sb_fill(msg, devlink, devlink_sb, | |
2478 | DEVLINK_CMD_SB_NEW, | |
2479 | info->snd_portid, info->snd_seq, 0); | |
2480 | if (err) { | |
2481 | nlmsg_free(msg); | |
2482 | return err; | |
2483 | } | |
2484 | ||
2485 | return genlmsg_reply(msg, info); | |
2486 | } | |
2487 | ||
2488 | static int devlink_nl_cmd_sb_get_dumpit(struct sk_buff *msg, | |
2489 | struct netlink_callback *cb) | |
2490 | { | |
2491 | struct devlink *devlink; | |
2492 | struct devlink_sb *devlink_sb; | |
2493 | int start = cb->args[0]; | |
11a861d7 | 2494 | unsigned long index; |
bf797471 JP |
2495 | int idx = 0; |
2496 | int err; | |
2497 | ||
2498 | mutex_lock(&devlink_mutex); | |
294c4f57 | 2499 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
7715023a | 2500 | devl_lock(devlink); |
bf797471 JP |
2501 | list_for_each_entry(devlink_sb, &devlink->sb_list, list) { |
2502 | if (idx < start) { | |
2503 | idx++; | |
2504 | continue; | |
2505 | } | |
2506 | err = devlink_nl_sb_fill(msg, devlink, devlink_sb, | |
2507 | DEVLINK_CMD_SB_NEW, | |
2508 | NETLINK_CB(cb->skb).portid, | |
2509 | cb->nlh->nlmsg_seq, | |
2510 | NLM_F_MULTI); | |
2406e7e5 | 2511 | if (err) { |
7715023a | 2512 | devl_unlock(devlink); |
437ebfd9 | 2513 | devlink_put(devlink); |
bf797471 | 2514 | goto out; |
2406e7e5 | 2515 | } |
bf797471 JP |
2516 | idx++; |
2517 | } | |
7715023a | 2518 | devl_unlock(devlink); |
437ebfd9 | 2519 | devlink_put(devlink); |
bf797471 JP |
2520 | } |
2521 | out: | |
2522 | mutex_unlock(&devlink_mutex); | |
2523 | ||
2524 | cb->args[0] = idx; | |
2525 | return msg->len; | |
2526 | } | |
2527 | ||
2528 | static int devlink_nl_sb_pool_fill(struct sk_buff *msg, struct devlink *devlink, | |
2529 | struct devlink_sb *devlink_sb, | |
2530 | u16 pool_index, enum devlink_command cmd, | |
2531 | u32 portid, u32 seq, int flags) | |
2532 | { | |
2533 | struct devlink_sb_pool_info pool_info; | |
2534 | void *hdr; | |
2535 | int err; | |
2536 | ||
2537 | err = devlink->ops->sb_pool_get(devlink, devlink_sb->index, | |
2538 | pool_index, &pool_info); | |
2539 | if (err) | |
2540 | return err; | |
2541 | ||
2542 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
2543 | if (!hdr) | |
2544 | return -EMSGSIZE; | |
2545 | ||
2546 | if (devlink_nl_put_handle(msg, devlink)) | |
2547 | goto nla_put_failure; | |
2548 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_INDEX, devlink_sb->index)) | |
2549 | goto nla_put_failure; | |
2550 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_POOL_INDEX, pool_index)) | |
2551 | goto nla_put_failure; | |
2552 | if (nla_put_u8(msg, DEVLINK_ATTR_SB_POOL_TYPE, pool_info.pool_type)) | |
2553 | goto nla_put_failure; | |
2554 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_POOL_SIZE, pool_info.size)) | |
2555 | goto nla_put_failure; | |
2556 | if (nla_put_u8(msg, DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE, | |
2557 | pool_info.threshold_type)) | |
2558 | goto nla_put_failure; | |
bff5731d JK |
2559 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_POOL_CELL_SIZE, |
2560 | pool_info.cell_size)) | |
2561 | goto nla_put_failure; | |
bf797471 JP |
2562 | |
2563 | genlmsg_end(msg, hdr); | |
2564 | return 0; | |
2565 | ||
2566 | nla_put_failure: | |
2567 | genlmsg_cancel(msg, hdr); | |
2568 | return -EMSGSIZE; | |
2569 | } | |
2570 | ||
2571 | static int devlink_nl_cmd_sb_pool_get_doit(struct sk_buff *skb, | |
2572 | struct genl_info *info) | |
2573 | { | |
2574 | struct devlink *devlink = info->user_ptr[0]; | |
637989b5 | 2575 | struct devlink_sb *devlink_sb; |
bf797471 JP |
2576 | struct sk_buff *msg; |
2577 | u16 pool_index; | |
2578 | int err; | |
2579 | ||
637989b5 PP |
2580 | devlink_sb = devlink_sb_get_from_info(devlink, info); |
2581 | if (IS_ERR(devlink_sb)) | |
2582 | return PTR_ERR(devlink_sb); | |
2583 | ||
bf797471 JP |
2584 | err = devlink_sb_pool_index_get_from_info(devlink_sb, info, |
2585 | &pool_index); | |
2586 | if (err) | |
2587 | return err; | |
2588 | ||
be6fe1d8 | 2589 | if (!devlink->ops->sb_pool_get) |
bf797471 JP |
2590 | return -EOPNOTSUPP; |
2591 | ||
2592 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
2593 | if (!msg) | |
2594 | return -ENOMEM; | |
2595 | ||
2596 | err = devlink_nl_sb_pool_fill(msg, devlink, devlink_sb, pool_index, | |
2597 | DEVLINK_CMD_SB_POOL_NEW, | |
2598 | info->snd_portid, info->snd_seq, 0); | |
2599 | if (err) { | |
2600 | nlmsg_free(msg); | |
2601 | return err; | |
2602 | } | |
2603 | ||
2604 | return genlmsg_reply(msg, info); | |
2605 | } | |
2606 | ||
2607 | static int __sb_pool_get_dumpit(struct sk_buff *msg, int start, int *p_idx, | |
2608 | struct devlink *devlink, | |
2609 | struct devlink_sb *devlink_sb, | |
2610 | u32 portid, u32 seq) | |
2611 | { | |
2612 | u16 pool_count = devlink_sb_pool_count(devlink_sb); | |
2613 | u16 pool_index; | |
2614 | int err; | |
2615 | ||
2616 | for (pool_index = 0; pool_index < pool_count; pool_index++) { | |
2617 | if (*p_idx < start) { | |
2618 | (*p_idx)++; | |
2619 | continue; | |
2620 | } | |
2621 | err = devlink_nl_sb_pool_fill(msg, devlink, | |
2622 | devlink_sb, | |
2623 | pool_index, | |
2624 | DEVLINK_CMD_SB_POOL_NEW, | |
2625 | portid, seq, NLM_F_MULTI); | |
2626 | if (err) | |
2627 | return err; | |
2628 | (*p_idx)++; | |
2629 | } | |
2630 | return 0; | |
2631 | } | |
2632 | ||
2633 | static int devlink_nl_cmd_sb_pool_get_dumpit(struct sk_buff *msg, | |
2634 | struct netlink_callback *cb) | |
2635 | { | |
2636 | struct devlink *devlink; | |
2637 | struct devlink_sb *devlink_sb; | |
2638 | int start = cb->args[0]; | |
11a861d7 | 2639 | unsigned long index; |
bf797471 | 2640 | int idx = 0; |
c62c2cfb | 2641 | int err = 0; |
bf797471 JP |
2642 | |
2643 | mutex_lock(&devlink_mutex); | |
294c4f57 | 2644 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
2bb88b2c | 2645 | if (!devlink->ops->sb_pool_get) |
437ebfd9 LR |
2646 | goto retry; |
2647 | ||
7715023a | 2648 | devl_lock(devlink); |
bf797471 JP |
2649 | list_for_each_entry(devlink_sb, &devlink->sb_list, list) { |
2650 | err = __sb_pool_get_dumpit(msg, start, &idx, devlink, | |
2651 | devlink_sb, | |
2652 | NETLINK_CB(cb->skb).portid, | |
2653 | cb->nlh->nlmsg_seq); | |
82274d07 JK |
2654 | if (err == -EOPNOTSUPP) { |
2655 | err = 0; | |
2656 | } else if (err) { | |
7715023a | 2657 | devl_unlock(devlink); |
437ebfd9 | 2658 | devlink_put(devlink); |
bf797471 | 2659 | goto out; |
2406e7e5 | 2660 | } |
bf797471 | 2661 | } |
7715023a | 2662 | devl_unlock(devlink); |
437ebfd9 LR |
2663 | retry: |
2664 | devlink_put(devlink); | |
bf797471 JP |
2665 | } |
2666 | out: | |
2667 | mutex_unlock(&devlink_mutex); | |
2668 | ||
c62c2cfb JP |
2669 | if (err != -EMSGSIZE) |
2670 | return err; | |
2671 | ||
bf797471 JP |
2672 | cb->args[0] = idx; |
2673 | return msg->len; | |
2674 | } | |
2675 | ||
2676 | static int devlink_sb_pool_set(struct devlink *devlink, unsigned int sb_index, | |
2677 | u16 pool_index, u32 size, | |
f2ad1a52 IS |
2678 | enum devlink_sb_threshold_type threshold_type, |
2679 | struct netlink_ext_ack *extack) | |
bf797471 JP |
2680 | |
2681 | { | |
2682 | const struct devlink_ops *ops = devlink->ops; | |
2683 | ||
be6fe1d8 | 2684 | if (ops->sb_pool_set) |
bf797471 | 2685 | return ops->sb_pool_set(devlink, sb_index, pool_index, |
f2ad1a52 | 2686 | size, threshold_type, extack); |
bf797471 JP |
2687 | return -EOPNOTSUPP; |
2688 | } | |
2689 | ||
2690 | static int devlink_nl_cmd_sb_pool_set_doit(struct sk_buff *skb, | |
2691 | struct genl_info *info) | |
2692 | { | |
2693 | struct devlink *devlink = info->user_ptr[0]; | |
bf797471 | 2694 | enum devlink_sb_threshold_type threshold_type; |
637989b5 | 2695 | struct devlink_sb *devlink_sb; |
bf797471 JP |
2696 | u16 pool_index; |
2697 | u32 size; | |
2698 | int err; | |
2699 | ||
637989b5 PP |
2700 | devlink_sb = devlink_sb_get_from_info(devlink, info); |
2701 | if (IS_ERR(devlink_sb)) | |
2702 | return PTR_ERR(devlink_sb); | |
2703 | ||
bf797471 JP |
2704 | err = devlink_sb_pool_index_get_from_info(devlink_sb, info, |
2705 | &pool_index); | |
2706 | if (err) | |
2707 | return err; | |
2708 | ||
2709 | err = devlink_sb_th_type_get_from_info(info, &threshold_type); | |
2710 | if (err) | |
2711 | return err; | |
2712 | ||
2713 | if (!info->attrs[DEVLINK_ATTR_SB_POOL_SIZE]) | |
2714 | return -EINVAL; | |
2715 | ||
2716 | size = nla_get_u32(info->attrs[DEVLINK_ATTR_SB_POOL_SIZE]); | |
2717 | return devlink_sb_pool_set(devlink, devlink_sb->index, | |
f2ad1a52 IS |
2718 | pool_index, size, threshold_type, |
2719 | info->extack); | |
bf797471 JP |
2720 | } |
2721 | ||
2722 | static int devlink_nl_sb_port_pool_fill(struct sk_buff *msg, | |
2723 | struct devlink *devlink, | |
2724 | struct devlink_port *devlink_port, | |
2725 | struct devlink_sb *devlink_sb, | |
2726 | u16 pool_index, | |
2727 | enum devlink_command cmd, | |
2728 | u32 portid, u32 seq, int flags) | |
2729 | { | |
df38dafd | 2730 | const struct devlink_ops *ops = devlink->ops; |
bf797471 JP |
2731 | u32 threshold; |
2732 | void *hdr; | |
2733 | int err; | |
2734 | ||
df38dafd JP |
2735 | err = ops->sb_port_pool_get(devlink_port, devlink_sb->index, |
2736 | pool_index, &threshold); | |
bf797471 JP |
2737 | if (err) |
2738 | return err; | |
2739 | ||
2740 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
2741 | if (!hdr) | |
2742 | return -EMSGSIZE; | |
2743 | ||
2744 | if (devlink_nl_put_handle(msg, devlink)) | |
2745 | goto nla_put_failure; | |
2746 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, devlink_port->index)) | |
2747 | goto nla_put_failure; | |
2748 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_INDEX, devlink_sb->index)) | |
2749 | goto nla_put_failure; | |
2750 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_POOL_INDEX, pool_index)) | |
2751 | goto nla_put_failure; | |
2752 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_THRESHOLD, threshold)) | |
2753 | goto nla_put_failure; | |
2754 | ||
df38dafd JP |
2755 | if (ops->sb_occ_port_pool_get) { |
2756 | u32 cur; | |
2757 | u32 max; | |
2758 | ||
2759 | err = ops->sb_occ_port_pool_get(devlink_port, devlink_sb->index, | |
2760 | pool_index, &cur, &max); | |
2761 | if (err && err != -EOPNOTSUPP) | |
849920c7 | 2762 | goto sb_occ_get_failure; |
df38dafd JP |
2763 | if (!err) { |
2764 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_OCC_CUR, cur)) | |
2765 | goto nla_put_failure; | |
2766 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_OCC_MAX, max)) | |
2767 | goto nla_put_failure; | |
2768 | } | |
2769 | } | |
2770 | ||
bf797471 JP |
2771 | genlmsg_end(msg, hdr); |
2772 | return 0; | |
2773 | ||
2774 | nla_put_failure: | |
849920c7 WH |
2775 | err = -EMSGSIZE; |
2776 | sb_occ_get_failure: | |
bf797471 | 2777 | genlmsg_cancel(msg, hdr); |
849920c7 | 2778 | return err; |
bf797471 JP |
2779 | } |
2780 | ||
2781 | static int devlink_nl_cmd_sb_port_pool_get_doit(struct sk_buff *skb, | |
2782 | struct genl_info *info) | |
2783 | { | |
637989b5 | 2784 | struct devlink_port *devlink_port = info->user_ptr[1]; |
bf797471 | 2785 | struct devlink *devlink = devlink_port->devlink; |
637989b5 | 2786 | struct devlink_sb *devlink_sb; |
bf797471 JP |
2787 | struct sk_buff *msg; |
2788 | u16 pool_index; | |
2789 | int err; | |
2790 | ||
637989b5 PP |
2791 | devlink_sb = devlink_sb_get_from_info(devlink, info); |
2792 | if (IS_ERR(devlink_sb)) | |
2793 | return PTR_ERR(devlink_sb); | |
2794 | ||
bf797471 JP |
2795 | err = devlink_sb_pool_index_get_from_info(devlink_sb, info, |
2796 | &pool_index); | |
2797 | if (err) | |
2798 | return err; | |
2799 | ||
be6fe1d8 | 2800 | if (!devlink->ops->sb_port_pool_get) |
bf797471 JP |
2801 | return -EOPNOTSUPP; |
2802 | ||
2803 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
2804 | if (!msg) | |
2805 | return -ENOMEM; | |
2806 | ||
2807 | err = devlink_nl_sb_port_pool_fill(msg, devlink, devlink_port, | |
2808 | devlink_sb, pool_index, | |
2809 | DEVLINK_CMD_SB_PORT_POOL_NEW, | |
2810 | info->snd_portid, info->snd_seq, 0); | |
2811 | if (err) { | |
2812 | nlmsg_free(msg); | |
2813 | return err; | |
2814 | } | |
2815 | ||
2816 | return genlmsg_reply(msg, info); | |
2817 | } | |
2818 | ||
2819 | static int __sb_port_pool_get_dumpit(struct sk_buff *msg, int start, int *p_idx, | |
2820 | struct devlink *devlink, | |
2821 | struct devlink_sb *devlink_sb, | |
2822 | u32 portid, u32 seq) | |
2823 | { | |
2824 | struct devlink_port *devlink_port; | |
2825 | u16 pool_count = devlink_sb_pool_count(devlink_sb); | |
2826 | u16 pool_index; | |
2827 | int err; | |
2828 | ||
2829 | list_for_each_entry(devlink_port, &devlink->port_list, list) { | |
2830 | for (pool_index = 0; pool_index < pool_count; pool_index++) { | |
2831 | if (*p_idx < start) { | |
2832 | (*p_idx)++; | |
2833 | continue; | |
2834 | } | |
2835 | err = devlink_nl_sb_port_pool_fill(msg, devlink, | |
2836 | devlink_port, | |
2837 | devlink_sb, | |
2838 | pool_index, | |
2839 | DEVLINK_CMD_SB_PORT_POOL_NEW, | |
2840 | portid, seq, | |
2841 | NLM_F_MULTI); | |
2842 | if (err) | |
2843 | return err; | |
2844 | (*p_idx)++; | |
2845 | } | |
2846 | } | |
2847 | return 0; | |
2848 | } | |
2849 | ||
2850 | static int devlink_nl_cmd_sb_port_pool_get_dumpit(struct sk_buff *msg, | |
2851 | struct netlink_callback *cb) | |
2852 | { | |
2853 | struct devlink *devlink; | |
2854 | struct devlink_sb *devlink_sb; | |
2855 | int start = cb->args[0]; | |
11a861d7 | 2856 | unsigned long index; |
bf797471 | 2857 | int idx = 0; |
c62c2cfb | 2858 | int err = 0; |
bf797471 JP |
2859 | |
2860 | mutex_lock(&devlink_mutex); | |
294c4f57 JP |
2861 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
2862 | if (!devlink->ops->sb_port_pool_get) | |
437ebfd9 LR |
2863 | goto retry; |
2864 | ||
7715023a | 2865 | devl_lock(devlink); |
bf797471 JP |
2866 | list_for_each_entry(devlink_sb, &devlink->sb_list, list) { |
2867 | err = __sb_port_pool_get_dumpit(msg, start, &idx, | |
2868 | devlink, devlink_sb, | |
2869 | NETLINK_CB(cb->skb).portid, | |
2870 | cb->nlh->nlmsg_seq); | |
82274d07 JK |
2871 | if (err == -EOPNOTSUPP) { |
2872 | err = 0; | |
2873 | } else if (err) { | |
7715023a | 2874 | devl_unlock(devlink); |
437ebfd9 | 2875 | devlink_put(devlink); |
bf797471 | 2876 | goto out; |
2406e7e5 | 2877 | } |
bf797471 | 2878 | } |
7715023a | 2879 | devl_unlock(devlink); |
437ebfd9 LR |
2880 | retry: |
2881 | devlink_put(devlink); | |
bf797471 JP |
2882 | } |
2883 | out: | |
bf797471 JP |
2884 | mutex_unlock(&devlink_mutex); |
2885 | ||
c62c2cfb JP |
2886 | if (err != -EMSGSIZE) |
2887 | return err; | |
2888 | ||
bf797471 JP |
2889 | cb->args[0] = idx; |
2890 | return msg->len; | |
2891 | } | |
2892 | ||
2893 | static int devlink_sb_port_pool_set(struct devlink_port *devlink_port, | |
2894 | unsigned int sb_index, u16 pool_index, | |
f2ad1a52 IS |
2895 | u32 threshold, |
2896 | struct netlink_ext_ack *extack) | |
bf797471 JP |
2897 | |
2898 | { | |
2899 | const struct devlink_ops *ops = devlink_port->devlink->ops; | |
2900 | ||
be6fe1d8 | 2901 | if (ops->sb_port_pool_set) |
bf797471 | 2902 | return ops->sb_port_pool_set(devlink_port, sb_index, |
f2ad1a52 | 2903 | pool_index, threshold, extack); |
bf797471 JP |
2904 | return -EOPNOTSUPP; |
2905 | } | |
2906 | ||
2907 | static int devlink_nl_cmd_sb_port_pool_set_doit(struct sk_buff *skb, | |
2908 | struct genl_info *info) | |
2909 | { | |
637989b5 PP |
2910 | struct devlink_port *devlink_port = info->user_ptr[1]; |
2911 | struct devlink *devlink = info->user_ptr[0]; | |
2912 | struct devlink_sb *devlink_sb; | |
bf797471 JP |
2913 | u16 pool_index; |
2914 | u32 threshold; | |
2915 | int err; | |
2916 | ||
637989b5 PP |
2917 | devlink_sb = devlink_sb_get_from_info(devlink, info); |
2918 | if (IS_ERR(devlink_sb)) | |
2919 | return PTR_ERR(devlink_sb); | |
2920 | ||
bf797471 JP |
2921 | err = devlink_sb_pool_index_get_from_info(devlink_sb, info, |
2922 | &pool_index); | |
2923 | if (err) | |
2924 | return err; | |
2925 | ||
2926 | if (!info->attrs[DEVLINK_ATTR_SB_THRESHOLD]) | |
2927 | return -EINVAL; | |
2928 | ||
2929 | threshold = nla_get_u32(info->attrs[DEVLINK_ATTR_SB_THRESHOLD]); | |
2930 | return devlink_sb_port_pool_set(devlink_port, devlink_sb->index, | |
f2ad1a52 | 2931 | pool_index, threshold, info->extack); |
bf797471 JP |
2932 | } |
2933 | ||
2934 | static int | |
2935 | devlink_nl_sb_tc_pool_bind_fill(struct sk_buff *msg, struct devlink *devlink, | |
2936 | struct devlink_port *devlink_port, | |
2937 | struct devlink_sb *devlink_sb, u16 tc_index, | |
2938 | enum devlink_sb_pool_type pool_type, | |
2939 | enum devlink_command cmd, | |
2940 | u32 portid, u32 seq, int flags) | |
2941 | { | |
df38dafd | 2942 | const struct devlink_ops *ops = devlink->ops; |
bf797471 JP |
2943 | u16 pool_index; |
2944 | u32 threshold; | |
2945 | void *hdr; | |
2946 | int err; | |
2947 | ||
df38dafd JP |
2948 | err = ops->sb_tc_pool_bind_get(devlink_port, devlink_sb->index, |
2949 | tc_index, pool_type, | |
2950 | &pool_index, &threshold); | |
bf797471 JP |
2951 | if (err) |
2952 | return err; | |
2953 | ||
2954 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
2955 | if (!hdr) | |
2956 | return -EMSGSIZE; | |
2957 | ||
2958 | if (devlink_nl_put_handle(msg, devlink)) | |
2959 | goto nla_put_failure; | |
2960 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, devlink_port->index)) | |
2961 | goto nla_put_failure; | |
2962 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_INDEX, devlink_sb->index)) | |
2963 | goto nla_put_failure; | |
2964 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_TC_INDEX, tc_index)) | |
2965 | goto nla_put_failure; | |
2966 | if (nla_put_u8(msg, DEVLINK_ATTR_SB_POOL_TYPE, pool_type)) | |
2967 | goto nla_put_failure; | |
2968 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_POOL_INDEX, pool_index)) | |
2969 | goto nla_put_failure; | |
2970 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_THRESHOLD, threshold)) | |
2971 | goto nla_put_failure; | |
2972 | ||
df38dafd JP |
2973 | if (ops->sb_occ_tc_port_bind_get) { |
2974 | u32 cur; | |
2975 | u32 max; | |
2976 | ||
2977 | err = ops->sb_occ_tc_port_bind_get(devlink_port, | |
2978 | devlink_sb->index, | |
2979 | tc_index, pool_type, | |
2980 | &cur, &max); | |
2981 | if (err && err != -EOPNOTSUPP) | |
2982 | return err; | |
2983 | if (!err) { | |
2984 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_OCC_CUR, cur)) | |
2985 | goto nla_put_failure; | |
2986 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_OCC_MAX, max)) | |
2987 | goto nla_put_failure; | |
2988 | } | |
2989 | } | |
2990 | ||
bf797471 JP |
2991 | genlmsg_end(msg, hdr); |
2992 | return 0; | |
2993 | ||
2994 | nla_put_failure: | |
2995 | genlmsg_cancel(msg, hdr); | |
2996 | return -EMSGSIZE; | |
2997 | } | |
2998 | ||
2999 | static int devlink_nl_cmd_sb_tc_pool_bind_get_doit(struct sk_buff *skb, | |
3000 | struct genl_info *info) | |
3001 | { | |
637989b5 | 3002 | struct devlink_port *devlink_port = info->user_ptr[1]; |
bf797471 | 3003 | struct devlink *devlink = devlink_port->devlink; |
637989b5 | 3004 | struct devlink_sb *devlink_sb; |
bf797471 JP |
3005 | struct sk_buff *msg; |
3006 | enum devlink_sb_pool_type pool_type; | |
3007 | u16 tc_index; | |
3008 | int err; | |
3009 | ||
637989b5 PP |
3010 | devlink_sb = devlink_sb_get_from_info(devlink, info); |
3011 | if (IS_ERR(devlink_sb)) | |
3012 | return PTR_ERR(devlink_sb); | |
3013 | ||
bf797471 JP |
3014 | err = devlink_sb_pool_type_get_from_info(info, &pool_type); |
3015 | if (err) | |
3016 | return err; | |
3017 | ||
3018 | err = devlink_sb_tc_index_get_from_info(devlink_sb, info, | |
3019 | pool_type, &tc_index); | |
3020 | if (err) | |
3021 | return err; | |
3022 | ||
be6fe1d8 | 3023 | if (!devlink->ops->sb_tc_pool_bind_get) |
bf797471 JP |
3024 | return -EOPNOTSUPP; |
3025 | ||
3026 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
3027 | if (!msg) | |
3028 | return -ENOMEM; | |
3029 | ||
3030 | err = devlink_nl_sb_tc_pool_bind_fill(msg, devlink, devlink_port, | |
3031 | devlink_sb, tc_index, pool_type, | |
3032 | DEVLINK_CMD_SB_TC_POOL_BIND_NEW, | |
3033 | info->snd_portid, | |
3034 | info->snd_seq, 0); | |
3035 | if (err) { | |
3036 | nlmsg_free(msg); | |
3037 | return err; | |
3038 | } | |
3039 | ||
3040 | return genlmsg_reply(msg, info); | |
3041 | } | |
3042 | ||
3043 | static int __sb_tc_pool_bind_get_dumpit(struct sk_buff *msg, | |
3044 | int start, int *p_idx, | |
3045 | struct devlink *devlink, | |
3046 | struct devlink_sb *devlink_sb, | |
3047 | u32 portid, u32 seq) | |
3048 | { | |
3049 | struct devlink_port *devlink_port; | |
3050 | u16 tc_index; | |
3051 | int err; | |
3052 | ||
3053 | list_for_each_entry(devlink_port, &devlink->port_list, list) { | |
3054 | for (tc_index = 0; | |
3055 | tc_index < devlink_sb->ingress_tc_count; tc_index++) { | |
3056 | if (*p_idx < start) { | |
3057 | (*p_idx)++; | |
3058 | continue; | |
3059 | } | |
3060 | err = devlink_nl_sb_tc_pool_bind_fill(msg, devlink, | |
3061 | devlink_port, | |
3062 | devlink_sb, | |
3063 | tc_index, | |
3064 | DEVLINK_SB_POOL_TYPE_INGRESS, | |
3065 | DEVLINK_CMD_SB_TC_POOL_BIND_NEW, | |
3066 | portid, seq, | |
3067 | NLM_F_MULTI); | |
3068 | if (err) | |
3069 | return err; | |
3070 | (*p_idx)++; | |
3071 | } | |
3072 | for (tc_index = 0; | |
3073 | tc_index < devlink_sb->egress_tc_count; tc_index++) { | |
3074 | if (*p_idx < start) { | |
3075 | (*p_idx)++; | |
3076 | continue; | |
3077 | } | |
3078 | err = devlink_nl_sb_tc_pool_bind_fill(msg, devlink, | |
3079 | devlink_port, | |
3080 | devlink_sb, | |
3081 | tc_index, | |
3082 | DEVLINK_SB_POOL_TYPE_EGRESS, | |
3083 | DEVLINK_CMD_SB_TC_POOL_BIND_NEW, | |
3084 | portid, seq, | |
3085 | NLM_F_MULTI); | |
3086 | if (err) | |
3087 | return err; | |
3088 | (*p_idx)++; | |
3089 | } | |
3090 | } | |
3091 | return 0; | |
3092 | } | |
3093 | ||
3094 | static int | |
3095 | devlink_nl_cmd_sb_tc_pool_bind_get_dumpit(struct sk_buff *msg, | |
3096 | struct netlink_callback *cb) | |
3097 | { | |
3098 | struct devlink *devlink; | |
3099 | struct devlink_sb *devlink_sb; | |
3100 | int start = cb->args[0]; | |
11a861d7 | 3101 | unsigned long index; |
bf797471 | 3102 | int idx = 0; |
c62c2cfb | 3103 | int err = 0; |
bf797471 JP |
3104 | |
3105 | mutex_lock(&devlink_mutex); | |
294c4f57 JP |
3106 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
3107 | if (!devlink->ops->sb_tc_pool_bind_get) | |
437ebfd9 | 3108 | goto retry; |
2406e7e5 | 3109 | |
7715023a | 3110 | devl_lock(devlink); |
bf797471 JP |
3111 | list_for_each_entry(devlink_sb, &devlink->sb_list, list) { |
3112 | err = __sb_tc_pool_bind_get_dumpit(msg, start, &idx, | |
3113 | devlink, | |
3114 | devlink_sb, | |
3115 | NETLINK_CB(cb->skb).portid, | |
3116 | cb->nlh->nlmsg_seq); | |
82274d07 JK |
3117 | if (err == -EOPNOTSUPP) { |
3118 | err = 0; | |
3119 | } else if (err) { | |
7715023a | 3120 | devl_unlock(devlink); |
437ebfd9 | 3121 | devlink_put(devlink); |
bf797471 | 3122 | goto out; |
2406e7e5 | 3123 | } |
bf797471 | 3124 | } |
7715023a | 3125 | devl_unlock(devlink); |
437ebfd9 LR |
3126 | retry: |
3127 | devlink_put(devlink); | |
bf797471 JP |
3128 | } |
3129 | out: | |
bf797471 JP |
3130 | mutex_unlock(&devlink_mutex); |
3131 | ||
c62c2cfb JP |
3132 | if (err != -EMSGSIZE) |
3133 | return err; | |
3134 | ||
bf797471 JP |
3135 | cb->args[0] = idx; |
3136 | return msg->len; | |
3137 | } | |
3138 | ||
3139 | static int devlink_sb_tc_pool_bind_set(struct devlink_port *devlink_port, | |
3140 | unsigned int sb_index, u16 tc_index, | |
3141 | enum devlink_sb_pool_type pool_type, | |
f2ad1a52 IS |
3142 | u16 pool_index, u32 threshold, |
3143 | struct netlink_ext_ack *extack) | |
bf797471 JP |
3144 | |
3145 | { | |
3146 | const struct devlink_ops *ops = devlink_port->devlink->ops; | |
3147 | ||
be6fe1d8 | 3148 | if (ops->sb_tc_pool_bind_set) |
bf797471 JP |
3149 | return ops->sb_tc_pool_bind_set(devlink_port, sb_index, |
3150 | tc_index, pool_type, | |
f2ad1a52 | 3151 | pool_index, threshold, extack); |
bf797471 JP |
3152 | return -EOPNOTSUPP; |
3153 | } | |
3154 | ||
3155 | static int devlink_nl_cmd_sb_tc_pool_bind_set_doit(struct sk_buff *skb, | |
3156 | struct genl_info *info) | |
3157 | { | |
637989b5 PP |
3158 | struct devlink_port *devlink_port = info->user_ptr[1]; |
3159 | struct devlink *devlink = info->user_ptr[0]; | |
bf797471 | 3160 | enum devlink_sb_pool_type pool_type; |
637989b5 | 3161 | struct devlink_sb *devlink_sb; |
bf797471 JP |
3162 | u16 tc_index; |
3163 | u16 pool_index; | |
3164 | u32 threshold; | |
3165 | int err; | |
3166 | ||
637989b5 PP |
3167 | devlink_sb = devlink_sb_get_from_info(devlink, info); |
3168 | if (IS_ERR(devlink_sb)) | |
3169 | return PTR_ERR(devlink_sb); | |
3170 | ||
bf797471 JP |
3171 | err = devlink_sb_pool_type_get_from_info(info, &pool_type); |
3172 | if (err) | |
3173 | return err; | |
3174 | ||
3175 | err = devlink_sb_tc_index_get_from_info(devlink_sb, info, | |
3176 | pool_type, &tc_index); | |
3177 | if (err) | |
3178 | return err; | |
3179 | ||
3180 | err = devlink_sb_pool_index_get_from_info(devlink_sb, info, | |
3181 | &pool_index); | |
3182 | if (err) | |
3183 | return err; | |
3184 | ||
3185 | if (!info->attrs[DEVLINK_ATTR_SB_THRESHOLD]) | |
3186 | return -EINVAL; | |
3187 | ||
3188 | threshold = nla_get_u32(info->attrs[DEVLINK_ATTR_SB_THRESHOLD]); | |
3189 | return devlink_sb_tc_pool_bind_set(devlink_port, devlink_sb->index, | |
3190 | tc_index, pool_type, | |
f2ad1a52 | 3191 | pool_index, threshold, info->extack); |
bf797471 JP |
3192 | } |
3193 | ||
df38dafd JP |
3194 | static int devlink_nl_cmd_sb_occ_snapshot_doit(struct sk_buff *skb, |
3195 | struct genl_info *info) | |
3196 | { | |
3197 | struct devlink *devlink = info->user_ptr[0]; | |
df38dafd | 3198 | const struct devlink_ops *ops = devlink->ops; |
637989b5 PP |
3199 | struct devlink_sb *devlink_sb; |
3200 | ||
3201 | devlink_sb = devlink_sb_get_from_info(devlink, info); | |
3202 | if (IS_ERR(devlink_sb)) | |
3203 | return PTR_ERR(devlink_sb); | |
df38dafd | 3204 | |
be6fe1d8 | 3205 | if (ops->sb_occ_snapshot) |
df38dafd JP |
3206 | return ops->sb_occ_snapshot(devlink, devlink_sb->index); |
3207 | return -EOPNOTSUPP; | |
3208 | } | |
3209 | ||
3210 | static int devlink_nl_cmd_sb_occ_max_clear_doit(struct sk_buff *skb, | |
3211 | struct genl_info *info) | |
3212 | { | |
3213 | struct devlink *devlink = info->user_ptr[0]; | |
df38dafd | 3214 | const struct devlink_ops *ops = devlink->ops; |
637989b5 PP |
3215 | struct devlink_sb *devlink_sb; |
3216 | ||
3217 | devlink_sb = devlink_sb_get_from_info(devlink, info); | |
3218 | if (IS_ERR(devlink_sb)) | |
3219 | return PTR_ERR(devlink_sb); | |
df38dafd | 3220 | |
be6fe1d8 | 3221 | if (ops->sb_occ_max_clear) |
df38dafd JP |
3222 | return ops->sb_occ_max_clear(devlink, devlink_sb->index); |
3223 | return -EOPNOTSUPP; | |
3224 | } | |
3225 | ||
21e3d2dd JP |
3226 | static int devlink_nl_eswitch_fill(struct sk_buff *msg, struct devlink *devlink, |
3227 | enum devlink_command cmd, u32 portid, | |
3228 | u32 seq, int flags) | |
08f4b591 | 3229 | { |
59bfde01 | 3230 | const struct devlink_ops *ops = devlink->ops; |
98fdbea5 LR |
3231 | enum devlink_eswitch_encap_mode encap_mode; |
3232 | u8 inline_mode; | |
08f4b591 | 3233 | void *hdr; |
59bfde01 RD |
3234 | int err = 0; |
3235 | u16 mode; | |
08f4b591 OG |
3236 | |
3237 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
3238 | if (!hdr) | |
3239 | return -EMSGSIZE; | |
3240 | ||
59bfde01 RD |
3241 | err = devlink_nl_put_handle(msg, devlink); |
3242 | if (err) | |
1a6aa36b | 3243 | goto nla_put_failure; |
08f4b591 | 3244 | |
4456f61c JP |
3245 | if (ops->eswitch_mode_get) { |
3246 | err = ops->eswitch_mode_get(devlink, &mode); | |
3247 | if (err) | |
3248 | goto nla_put_failure; | |
3249 | err = nla_put_u16(msg, DEVLINK_ATTR_ESWITCH_MODE, mode); | |
3250 | if (err) | |
3251 | goto nla_put_failure; | |
3252 | } | |
59bfde01 RD |
3253 | |
3254 | if (ops->eswitch_inline_mode_get) { | |
3255 | err = ops->eswitch_inline_mode_get(devlink, &inline_mode); | |
3256 | if (err) | |
1a6aa36b | 3257 | goto nla_put_failure; |
59bfde01 RD |
3258 | err = nla_put_u8(msg, DEVLINK_ATTR_ESWITCH_INLINE_MODE, |
3259 | inline_mode); | |
3260 | if (err) | |
1a6aa36b | 3261 | goto nla_put_failure; |
59bfde01 | 3262 | } |
08f4b591 | 3263 | |
f43e9b06 RD |
3264 | if (ops->eswitch_encap_mode_get) { |
3265 | err = ops->eswitch_encap_mode_get(devlink, &encap_mode); | |
3266 | if (err) | |
3267 | goto nla_put_failure; | |
3268 | err = nla_put_u8(msg, DEVLINK_ATTR_ESWITCH_ENCAP_MODE, encap_mode); | |
3269 | if (err) | |
3270 | goto nla_put_failure; | |
3271 | } | |
3272 | ||
08f4b591 OG |
3273 | genlmsg_end(msg, hdr); |
3274 | return 0; | |
3275 | ||
1a6aa36b | 3276 | nla_put_failure: |
08f4b591 | 3277 | genlmsg_cancel(msg, hdr); |
59bfde01 | 3278 | return err; |
08f4b591 OG |
3279 | } |
3280 | ||
adf200f3 JP |
3281 | static int devlink_nl_cmd_eswitch_get_doit(struct sk_buff *skb, |
3282 | struct genl_info *info) | |
08f4b591 OG |
3283 | { |
3284 | struct devlink *devlink = info->user_ptr[0]; | |
08f4b591 | 3285 | struct sk_buff *msg; |
08f4b591 OG |
3286 | int err; |
3287 | ||
08f4b591 OG |
3288 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
3289 | if (!msg) | |
3290 | return -ENOMEM; | |
3291 | ||
21e3d2dd JP |
3292 | err = devlink_nl_eswitch_fill(msg, devlink, DEVLINK_CMD_ESWITCH_GET, |
3293 | info->snd_portid, info->snd_seq, 0); | |
08f4b591 OG |
3294 | |
3295 | if (err) { | |
3296 | nlmsg_free(msg); | |
3297 | return err; | |
3298 | } | |
3299 | ||
3300 | return genlmsg_reply(msg, info); | |
3301 | } | |
3302 | ||
a8ecb93e DL |
3303 | static int devlink_rate_nodes_check(struct devlink *devlink, u16 mode, |
3304 | struct netlink_ext_ack *extack) | |
3305 | { | |
3306 | struct devlink_rate *devlink_rate; | |
a8ecb93e DL |
3307 | |
3308 | list_for_each_entry(devlink_rate, &devlink->rate_list, list) | |
3309 | if (devlink_rate_is_node(devlink_rate)) { | |
3310 | NL_SET_ERR_MSG_MOD(extack, "Rate node(s) exists."); | |
3311 | return -EBUSY; | |
3312 | } | |
3313 | return 0; | |
3314 | } | |
3315 | ||
adf200f3 JP |
3316 | static int devlink_nl_cmd_eswitch_set_doit(struct sk_buff *skb, |
3317 | struct genl_info *info) | |
08f4b591 OG |
3318 | { |
3319 | struct devlink *devlink = info->user_ptr[0]; | |
3320 | const struct devlink_ops *ops = devlink->ops; | |
98fdbea5 LR |
3321 | enum devlink_eswitch_encap_mode encap_mode; |
3322 | u8 inline_mode; | |
59bfde01 | 3323 | int err = 0; |
f43e9b06 | 3324 | u16 mode; |
08f4b591 | 3325 | |
59bfde01 RD |
3326 | if (info->attrs[DEVLINK_ATTR_ESWITCH_MODE]) { |
3327 | if (!ops->eswitch_mode_set) | |
3328 | return -EOPNOTSUPP; | |
3329 | mode = nla_get_u16(info->attrs[DEVLINK_ATTR_ESWITCH_MODE]); | |
a8ecb93e DL |
3330 | err = devlink_rate_nodes_check(devlink, mode, info->extack); |
3331 | if (err) | |
3332 | return err; | |
db7ff19e | 3333 | err = ops->eswitch_mode_set(devlink, mode, info->extack); |
59bfde01 RD |
3334 | if (err) |
3335 | return err; | |
3336 | } | |
08f4b591 | 3337 | |
59bfde01 RD |
3338 | if (info->attrs[DEVLINK_ATTR_ESWITCH_INLINE_MODE]) { |
3339 | if (!ops->eswitch_inline_mode_set) | |
3340 | return -EOPNOTSUPP; | |
3341 | inline_mode = nla_get_u8( | |
3342 | info->attrs[DEVLINK_ATTR_ESWITCH_INLINE_MODE]); | |
db7ff19e EB |
3343 | err = ops->eswitch_inline_mode_set(devlink, inline_mode, |
3344 | info->extack); | |
59bfde01 RD |
3345 | if (err) |
3346 | return err; | |
3347 | } | |
f43e9b06 RD |
3348 | |
3349 | if (info->attrs[DEVLINK_ATTR_ESWITCH_ENCAP_MODE]) { | |
3350 | if (!ops->eswitch_encap_mode_set) | |
3351 | return -EOPNOTSUPP; | |
3352 | encap_mode = nla_get_u8(info->attrs[DEVLINK_ATTR_ESWITCH_ENCAP_MODE]); | |
db7ff19e EB |
3353 | err = ops->eswitch_encap_mode_set(devlink, encap_mode, |
3354 | info->extack); | |
f43e9b06 RD |
3355 | if (err) |
3356 | return err; | |
3357 | } | |
3358 | ||
1555d204 AS |
3359 | return 0; |
3360 | } | |
3361 | ||
3362 | int devlink_dpipe_match_put(struct sk_buff *skb, | |
3363 | struct devlink_dpipe_match *match) | |
3364 | { | |
3365 | struct devlink_dpipe_header *header = match->header; | |
3366 | struct devlink_dpipe_field *field = &header->fields[match->field_id]; | |
3367 | struct nlattr *match_attr; | |
3368 | ||
ae0be8de | 3369 | match_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_MATCH); |
1555d204 AS |
3370 | if (!match_attr) |
3371 | return -EMSGSIZE; | |
3372 | ||
3373 | if (nla_put_u32(skb, DEVLINK_ATTR_DPIPE_MATCH_TYPE, match->type) || | |
3374 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_INDEX, match->header_index) || | |
3375 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_ID, header->id) || | |
3376 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_ID, field->id) || | |
3377 | nla_put_u8(skb, DEVLINK_ATTR_DPIPE_HEADER_GLOBAL, header->global)) | |
3378 | goto nla_put_failure; | |
3379 | ||
3380 | nla_nest_end(skb, match_attr); | |
3381 | return 0; | |
3382 | ||
3383 | nla_put_failure: | |
3384 | nla_nest_cancel(skb, match_attr); | |
3385 | return -EMSGSIZE; | |
3386 | } | |
3387 | EXPORT_SYMBOL_GPL(devlink_dpipe_match_put); | |
3388 | ||
3389 | static int devlink_dpipe_matches_put(struct devlink_dpipe_table *table, | |
3390 | struct sk_buff *skb) | |
3391 | { | |
3392 | struct nlattr *matches_attr; | |
3393 | ||
ae0be8de MK |
3394 | matches_attr = nla_nest_start_noflag(skb, |
3395 | DEVLINK_ATTR_DPIPE_TABLE_MATCHES); | |
1555d204 AS |
3396 | if (!matches_attr) |
3397 | return -EMSGSIZE; | |
3398 | ||
3399 | if (table->table_ops->matches_dump(table->priv, skb)) | |
3400 | goto nla_put_failure; | |
3401 | ||
3402 | nla_nest_end(skb, matches_attr); | |
3403 | return 0; | |
3404 | ||
3405 | nla_put_failure: | |
3406 | nla_nest_cancel(skb, matches_attr); | |
3407 | return -EMSGSIZE; | |
3408 | } | |
3409 | ||
3410 | int devlink_dpipe_action_put(struct sk_buff *skb, | |
3411 | struct devlink_dpipe_action *action) | |
3412 | { | |
3413 | struct devlink_dpipe_header *header = action->header; | |
3414 | struct devlink_dpipe_field *field = &header->fields[action->field_id]; | |
3415 | struct nlattr *action_attr; | |
3416 | ||
ae0be8de | 3417 | action_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_ACTION); |
1555d204 AS |
3418 | if (!action_attr) |
3419 | return -EMSGSIZE; | |
3420 | ||
3421 | if (nla_put_u32(skb, DEVLINK_ATTR_DPIPE_ACTION_TYPE, action->type) || | |
3422 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_INDEX, action->header_index) || | |
3423 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_ID, header->id) || | |
3424 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_ID, field->id) || | |
3425 | nla_put_u8(skb, DEVLINK_ATTR_DPIPE_HEADER_GLOBAL, header->global)) | |
3426 | goto nla_put_failure; | |
3427 | ||
3428 | nla_nest_end(skb, action_attr); | |
3429 | return 0; | |
3430 | ||
3431 | nla_put_failure: | |
3432 | nla_nest_cancel(skb, action_attr); | |
3433 | return -EMSGSIZE; | |
3434 | } | |
3435 | EXPORT_SYMBOL_GPL(devlink_dpipe_action_put); | |
3436 | ||
3437 | static int devlink_dpipe_actions_put(struct devlink_dpipe_table *table, | |
3438 | struct sk_buff *skb) | |
3439 | { | |
3440 | struct nlattr *actions_attr; | |
3441 | ||
ae0be8de MK |
3442 | actions_attr = nla_nest_start_noflag(skb, |
3443 | DEVLINK_ATTR_DPIPE_TABLE_ACTIONS); | |
1555d204 AS |
3444 | if (!actions_attr) |
3445 | return -EMSGSIZE; | |
3446 | ||
3447 | if (table->table_ops->actions_dump(table->priv, skb)) | |
3448 | goto nla_put_failure; | |
3449 | ||
3450 | nla_nest_end(skb, actions_attr); | |
3451 | return 0; | |
3452 | ||
3453 | nla_put_failure: | |
3454 | nla_nest_cancel(skb, actions_attr); | |
3455 | return -EMSGSIZE; | |
3456 | } | |
3457 | ||
3458 | static int devlink_dpipe_table_put(struct sk_buff *skb, | |
3459 | struct devlink_dpipe_table *table) | |
3460 | { | |
3461 | struct nlattr *table_attr; | |
ffd3cdcc | 3462 | u64 table_size; |
1555d204 | 3463 | |
ffd3cdcc | 3464 | table_size = table->table_ops->size_get(table->priv); |
ae0be8de | 3465 | table_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_TABLE); |
1555d204 AS |
3466 | if (!table_attr) |
3467 | return -EMSGSIZE; | |
3468 | ||
3469 | if (nla_put_string(skb, DEVLINK_ATTR_DPIPE_TABLE_NAME, table->name) || | |
ffd3cdcc | 3470 | nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_TABLE_SIZE, table_size, |
1555d204 AS |
3471 | DEVLINK_ATTR_PAD)) |
3472 | goto nla_put_failure; | |
3473 | if (nla_put_u8(skb, DEVLINK_ATTR_DPIPE_TABLE_COUNTERS_ENABLED, | |
3474 | table->counters_enabled)) | |
3475 | goto nla_put_failure; | |
3476 | ||
56dc7cd0 | 3477 | if (table->resource_valid) { |
3d18e4f1 AS |
3478 | if (nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_TABLE_RESOURCE_ID, |
3479 | table->resource_id, DEVLINK_ATTR_PAD) || | |
3480 | nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_TABLE_RESOURCE_UNITS, | |
3481 | table->resource_units, DEVLINK_ATTR_PAD)) | |
3482 | goto nla_put_failure; | |
56dc7cd0 | 3483 | } |
1555d204 AS |
3484 | if (devlink_dpipe_matches_put(table, skb)) |
3485 | goto nla_put_failure; | |
3486 | ||
3487 | if (devlink_dpipe_actions_put(table, skb)) | |
3488 | goto nla_put_failure; | |
3489 | ||
3490 | nla_nest_end(skb, table_attr); | |
3491 | return 0; | |
3492 | ||
3493 | nla_put_failure: | |
3494 | nla_nest_cancel(skb, table_attr); | |
3495 | return -EMSGSIZE; | |
3496 | } | |
3497 | ||
3498 | static int devlink_dpipe_send_and_alloc_skb(struct sk_buff **pskb, | |
3499 | struct genl_info *info) | |
3500 | { | |
3501 | int err; | |
3502 | ||
3503 | if (*pskb) { | |
3504 | err = genlmsg_reply(*pskb, info); | |
3505 | if (err) | |
3506 | return err; | |
3507 | } | |
3508 | *pskb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
3509 | if (!*pskb) | |
3510 | return -ENOMEM; | |
3511 | return 0; | |
3512 | } | |
3513 | ||
3514 | static int devlink_dpipe_tables_fill(struct genl_info *info, | |
3515 | enum devlink_command cmd, int flags, | |
3516 | struct list_head *dpipe_tables, | |
3517 | const char *table_name) | |
3518 | { | |
3519 | struct devlink *devlink = info->user_ptr[0]; | |
3520 | struct devlink_dpipe_table *table; | |
3521 | struct nlattr *tables_attr; | |
3522 | struct sk_buff *skb = NULL; | |
3523 | struct nlmsghdr *nlh; | |
3524 | bool incomplete; | |
3525 | void *hdr; | |
3526 | int i; | |
3527 | int err; | |
3528 | ||
3529 | table = list_first_entry(dpipe_tables, | |
3530 | struct devlink_dpipe_table, list); | |
3531 | start_again: | |
3532 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); | |
3533 | if (err) | |
3534 | return err; | |
3535 | ||
3536 | hdr = genlmsg_put(skb, info->snd_portid, info->snd_seq, | |
3537 | &devlink_nl_family, NLM_F_MULTI, cmd); | |
6044bd4a HY |
3538 | if (!hdr) { |
3539 | nlmsg_free(skb); | |
1555d204 | 3540 | return -EMSGSIZE; |
6044bd4a | 3541 | } |
1555d204 AS |
3542 | |
3543 | if (devlink_nl_put_handle(skb, devlink)) | |
3544 | goto nla_put_failure; | |
ae0be8de | 3545 | tables_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_TABLES); |
1555d204 AS |
3546 | if (!tables_attr) |
3547 | goto nla_put_failure; | |
3548 | ||
3549 | i = 0; | |
3550 | incomplete = false; | |
3551 | list_for_each_entry_from(table, dpipe_tables, list) { | |
3552 | if (!table_name) { | |
3553 | err = devlink_dpipe_table_put(skb, table); | |
3554 | if (err) { | |
3555 | if (!i) | |
3556 | goto err_table_put; | |
3557 | incomplete = true; | |
3558 | break; | |
3559 | } | |
3560 | } else { | |
3561 | if (!strcmp(table->name, table_name)) { | |
3562 | err = devlink_dpipe_table_put(skb, table); | |
3563 | if (err) | |
3564 | break; | |
3565 | } | |
3566 | } | |
3567 | i++; | |
3568 | } | |
3569 | ||
3570 | nla_nest_end(skb, tables_attr); | |
3571 | genlmsg_end(skb, hdr); | |
3572 | if (incomplete) | |
3573 | goto start_again; | |
3574 | ||
3575 | send_done: | |
3576 | nlh = nlmsg_put(skb, info->snd_portid, info->snd_seq, | |
3577 | NLMSG_DONE, 0, flags | NLM_F_MULTI); | |
3578 | if (!nlh) { | |
3579 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); | |
3580 | if (err) | |
7fe4d6dc | 3581 | return err; |
1555d204 AS |
3582 | goto send_done; |
3583 | } | |
3584 | ||
3585 | return genlmsg_reply(skb, info); | |
3586 | ||
3587 | nla_put_failure: | |
3588 | err = -EMSGSIZE; | |
3589 | err_table_put: | |
1555d204 AS |
3590 | nlmsg_free(skb); |
3591 | return err; | |
3592 | } | |
3593 | ||
3594 | static int devlink_nl_cmd_dpipe_table_get(struct sk_buff *skb, | |
3595 | struct genl_info *info) | |
3596 | { | |
3597 | struct devlink *devlink = info->user_ptr[0]; | |
3598 | const char *table_name = NULL; | |
3599 | ||
3600 | if (info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME]) | |
3601 | table_name = nla_data(info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME]); | |
3602 | ||
3603 | return devlink_dpipe_tables_fill(info, DEVLINK_CMD_DPIPE_TABLE_GET, 0, | |
3604 | &devlink->dpipe_table_list, | |
3605 | table_name); | |
3606 | } | |
3607 | ||
3608 | static int devlink_dpipe_value_put(struct sk_buff *skb, | |
3609 | struct devlink_dpipe_value *value) | |
3610 | { | |
3611 | if (nla_put(skb, DEVLINK_ATTR_DPIPE_VALUE, | |
3612 | value->value_size, value->value)) | |
3613 | return -EMSGSIZE; | |
3614 | if (value->mask) | |
3615 | if (nla_put(skb, DEVLINK_ATTR_DPIPE_VALUE_MASK, | |
3616 | value->value_size, value->mask)) | |
3617 | return -EMSGSIZE; | |
3618 | if (value->mapping_valid) | |
3619 | if (nla_put_u32(skb, DEVLINK_ATTR_DPIPE_VALUE_MAPPING, | |
3620 | value->mapping_value)) | |
3621 | return -EMSGSIZE; | |
3622 | return 0; | |
3623 | } | |
3624 | ||
3625 | static int devlink_dpipe_action_value_put(struct sk_buff *skb, | |
3626 | struct devlink_dpipe_value *value) | |
3627 | { | |
3628 | if (!value->action) | |
3629 | return -EINVAL; | |
3630 | if (devlink_dpipe_action_put(skb, value->action)) | |
3631 | return -EMSGSIZE; | |
3632 | if (devlink_dpipe_value_put(skb, value)) | |
3633 | return -EMSGSIZE; | |
3634 | return 0; | |
3635 | } | |
3636 | ||
3637 | static int devlink_dpipe_action_values_put(struct sk_buff *skb, | |
3638 | struct devlink_dpipe_value *values, | |
3639 | unsigned int values_count) | |
3640 | { | |
3641 | struct nlattr *action_attr; | |
3642 | int i; | |
3643 | int err; | |
3644 | ||
3645 | for (i = 0; i < values_count; i++) { | |
ae0be8de MK |
3646 | action_attr = nla_nest_start_noflag(skb, |
3647 | DEVLINK_ATTR_DPIPE_ACTION_VALUE); | |
1555d204 AS |
3648 | if (!action_attr) |
3649 | return -EMSGSIZE; | |
3650 | err = devlink_dpipe_action_value_put(skb, &values[i]); | |
3651 | if (err) | |
3652 | goto err_action_value_put; | |
3653 | nla_nest_end(skb, action_attr); | |
3654 | } | |
3655 | return 0; | |
3656 | ||
3657 | err_action_value_put: | |
3658 | nla_nest_cancel(skb, action_attr); | |
3659 | return err; | |
3660 | } | |
3661 | ||
3662 | static int devlink_dpipe_match_value_put(struct sk_buff *skb, | |
3663 | struct devlink_dpipe_value *value) | |
3664 | { | |
3665 | if (!value->match) | |
3666 | return -EINVAL; | |
3667 | if (devlink_dpipe_match_put(skb, value->match)) | |
3668 | return -EMSGSIZE; | |
3669 | if (devlink_dpipe_value_put(skb, value)) | |
3670 | return -EMSGSIZE; | |
3671 | return 0; | |
3672 | } | |
3673 | ||
3674 | static int devlink_dpipe_match_values_put(struct sk_buff *skb, | |
3675 | struct devlink_dpipe_value *values, | |
3676 | unsigned int values_count) | |
3677 | { | |
3678 | struct nlattr *match_attr; | |
3679 | int i; | |
3680 | int err; | |
3681 | ||
3682 | for (i = 0; i < values_count; i++) { | |
ae0be8de MK |
3683 | match_attr = nla_nest_start_noflag(skb, |
3684 | DEVLINK_ATTR_DPIPE_MATCH_VALUE); | |
1555d204 AS |
3685 | if (!match_attr) |
3686 | return -EMSGSIZE; | |
3687 | err = devlink_dpipe_match_value_put(skb, &values[i]); | |
3688 | if (err) | |
3689 | goto err_match_value_put; | |
3690 | nla_nest_end(skb, match_attr); | |
3691 | } | |
3692 | return 0; | |
3693 | ||
3694 | err_match_value_put: | |
3695 | nla_nest_cancel(skb, match_attr); | |
3696 | return err; | |
3697 | } | |
3698 | ||
3699 | static int devlink_dpipe_entry_put(struct sk_buff *skb, | |
3700 | struct devlink_dpipe_entry *entry) | |
3701 | { | |
3702 | struct nlattr *entry_attr, *matches_attr, *actions_attr; | |
3703 | int err; | |
3704 | ||
ae0be8de | 3705 | entry_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_ENTRY); |
1555d204 AS |
3706 | if (!entry_attr) |
3707 | return -EMSGSIZE; | |
3708 | ||
3709 | if (nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_ENTRY_INDEX, entry->index, | |
3710 | DEVLINK_ATTR_PAD)) | |
3711 | goto nla_put_failure; | |
3712 | if (entry->counter_valid) | |
3713 | if (nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_ENTRY_COUNTER, | |
3714 | entry->counter, DEVLINK_ATTR_PAD)) | |
3715 | goto nla_put_failure; | |
3716 | ||
ae0be8de MK |
3717 | matches_attr = nla_nest_start_noflag(skb, |
3718 | DEVLINK_ATTR_DPIPE_ENTRY_MATCH_VALUES); | |
1555d204 AS |
3719 | if (!matches_attr) |
3720 | goto nla_put_failure; | |
3721 | ||
3722 | err = devlink_dpipe_match_values_put(skb, entry->match_values, | |
3723 | entry->match_values_count); | |
3724 | if (err) { | |
3725 | nla_nest_cancel(skb, matches_attr); | |
3726 | goto err_match_values_put; | |
3727 | } | |
3728 | nla_nest_end(skb, matches_attr); | |
3729 | ||
ae0be8de MK |
3730 | actions_attr = nla_nest_start_noflag(skb, |
3731 | DEVLINK_ATTR_DPIPE_ENTRY_ACTION_VALUES); | |
1555d204 AS |
3732 | if (!actions_attr) |
3733 | goto nla_put_failure; | |
3734 | ||
3735 | err = devlink_dpipe_action_values_put(skb, entry->action_values, | |
3736 | entry->action_values_count); | |
3737 | if (err) { | |
3738 | nla_nest_cancel(skb, actions_attr); | |
3739 | goto err_action_values_put; | |
3740 | } | |
3741 | nla_nest_end(skb, actions_attr); | |
59bfde01 | 3742 | |
1555d204 | 3743 | nla_nest_end(skb, entry_attr); |
59bfde01 | 3744 | return 0; |
1555d204 AS |
3745 | |
3746 | nla_put_failure: | |
3747 | err = -EMSGSIZE; | |
3748 | err_match_values_put: | |
3749 | err_action_values_put: | |
3750 | nla_nest_cancel(skb, entry_attr); | |
3751 | return err; | |
3752 | } | |
3753 | ||
3754 | static struct devlink_dpipe_table * | |
3755 | devlink_dpipe_table_find(struct list_head *dpipe_tables, | |
2eb51c75 | 3756 | const char *table_name, struct devlink *devlink) |
1555d204 AS |
3757 | { |
3758 | struct devlink_dpipe_table *table; | |
2eb51c75 MB |
3759 | list_for_each_entry_rcu(table, dpipe_tables, list, |
3760 | lockdep_is_held(&devlink->lock)) { | |
1555d204 AS |
3761 | if (!strcmp(table->name, table_name)) |
3762 | return table; | |
3763 | } | |
3764 | return NULL; | |
3765 | } | |
3766 | ||
3767 | int devlink_dpipe_entry_ctx_prepare(struct devlink_dpipe_dump_ctx *dump_ctx) | |
3768 | { | |
3769 | struct devlink *devlink; | |
3770 | int err; | |
3771 | ||
3772 | err = devlink_dpipe_send_and_alloc_skb(&dump_ctx->skb, | |
3773 | dump_ctx->info); | |
3774 | if (err) | |
3775 | return err; | |
3776 | ||
3777 | dump_ctx->hdr = genlmsg_put(dump_ctx->skb, | |
3778 | dump_ctx->info->snd_portid, | |
3779 | dump_ctx->info->snd_seq, | |
3780 | &devlink_nl_family, NLM_F_MULTI, | |
3781 | dump_ctx->cmd); | |
3782 | if (!dump_ctx->hdr) | |
3783 | goto nla_put_failure; | |
3784 | ||
3785 | devlink = dump_ctx->info->user_ptr[0]; | |
3786 | if (devlink_nl_put_handle(dump_ctx->skb, devlink)) | |
3787 | goto nla_put_failure; | |
ae0be8de MK |
3788 | dump_ctx->nest = nla_nest_start_noflag(dump_ctx->skb, |
3789 | DEVLINK_ATTR_DPIPE_ENTRIES); | |
1555d204 AS |
3790 | if (!dump_ctx->nest) |
3791 | goto nla_put_failure; | |
3792 | return 0; | |
3793 | ||
3794 | nla_put_failure: | |
1555d204 AS |
3795 | nlmsg_free(dump_ctx->skb); |
3796 | return -EMSGSIZE; | |
3797 | } | |
3798 | EXPORT_SYMBOL_GPL(devlink_dpipe_entry_ctx_prepare); | |
3799 | ||
3800 | int devlink_dpipe_entry_ctx_append(struct devlink_dpipe_dump_ctx *dump_ctx, | |
3801 | struct devlink_dpipe_entry *entry) | |
3802 | { | |
3803 | return devlink_dpipe_entry_put(dump_ctx->skb, entry); | |
3804 | } | |
3805 | EXPORT_SYMBOL_GPL(devlink_dpipe_entry_ctx_append); | |
3806 | ||
3807 | int devlink_dpipe_entry_ctx_close(struct devlink_dpipe_dump_ctx *dump_ctx) | |
3808 | { | |
3809 | nla_nest_end(dump_ctx->skb, dump_ctx->nest); | |
3810 | genlmsg_end(dump_ctx->skb, dump_ctx->hdr); | |
3811 | return 0; | |
3812 | } | |
3813 | EXPORT_SYMBOL_GPL(devlink_dpipe_entry_ctx_close); | |
3814 | ||
35807324 AS |
3815 | void devlink_dpipe_entry_clear(struct devlink_dpipe_entry *entry) |
3816 | ||
3817 | { | |
3818 | unsigned int value_count, value_index; | |
3819 | struct devlink_dpipe_value *value; | |
3820 | ||
3821 | value = entry->action_values; | |
3822 | value_count = entry->action_values_count; | |
3823 | for (value_index = 0; value_index < value_count; value_index++) { | |
3824 | kfree(value[value_index].value); | |
3825 | kfree(value[value_index].mask); | |
3826 | } | |
3827 | ||
3828 | value = entry->match_values; | |
3829 | value_count = entry->match_values_count; | |
3830 | for (value_index = 0; value_index < value_count; value_index++) { | |
3831 | kfree(value[value_index].value); | |
3832 | kfree(value[value_index].mask); | |
3833 | } | |
3834 | } | |
c52ef04d | 3835 | EXPORT_SYMBOL_GPL(devlink_dpipe_entry_clear); |
35807324 | 3836 | |
1555d204 AS |
3837 | static int devlink_dpipe_entries_fill(struct genl_info *info, |
3838 | enum devlink_command cmd, int flags, | |
3839 | struct devlink_dpipe_table *table) | |
3840 | { | |
3841 | struct devlink_dpipe_dump_ctx dump_ctx; | |
3842 | struct nlmsghdr *nlh; | |
3843 | int err; | |
3844 | ||
3845 | dump_ctx.skb = NULL; | |
3846 | dump_ctx.cmd = cmd; | |
3847 | dump_ctx.info = info; | |
3848 | ||
3849 | err = table->table_ops->entries_dump(table->priv, | |
3850 | table->counters_enabled, | |
3851 | &dump_ctx); | |
3852 | if (err) | |
7fe4d6dc | 3853 | return err; |
1555d204 AS |
3854 | |
3855 | send_done: | |
3856 | nlh = nlmsg_put(dump_ctx.skb, info->snd_portid, info->snd_seq, | |
3857 | NLMSG_DONE, 0, flags | NLM_F_MULTI); | |
3858 | if (!nlh) { | |
3859 | err = devlink_dpipe_send_and_alloc_skb(&dump_ctx.skb, info); | |
3860 | if (err) | |
7fe4d6dc | 3861 | return err; |
1555d204 AS |
3862 | goto send_done; |
3863 | } | |
3864 | return genlmsg_reply(dump_ctx.skb, info); | |
1555d204 AS |
3865 | } |
3866 | ||
3867 | static int devlink_nl_cmd_dpipe_entries_get(struct sk_buff *skb, | |
3868 | struct genl_info *info) | |
3869 | { | |
3870 | struct devlink *devlink = info->user_ptr[0]; | |
3871 | struct devlink_dpipe_table *table; | |
3872 | const char *table_name; | |
3873 | ||
3874 | if (!info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME]) | |
3875 | return -EINVAL; | |
3876 | ||
3877 | table_name = nla_data(info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME]); | |
3878 | table = devlink_dpipe_table_find(&devlink->dpipe_table_list, | |
2eb51c75 | 3879 | table_name, devlink); |
1555d204 AS |
3880 | if (!table) |
3881 | return -EINVAL; | |
3882 | ||
3883 | if (!table->table_ops->entries_dump) | |
3884 | return -EINVAL; | |
3885 | ||
3886 | return devlink_dpipe_entries_fill(info, DEVLINK_CMD_DPIPE_ENTRIES_GET, | |
3887 | 0, table); | |
3888 | } | |
3889 | ||
3890 | static int devlink_dpipe_fields_put(struct sk_buff *skb, | |
3891 | const struct devlink_dpipe_header *header) | |
3892 | { | |
3893 | struct devlink_dpipe_field *field; | |
3894 | struct nlattr *field_attr; | |
3895 | int i; | |
3896 | ||
3897 | for (i = 0; i < header->fields_count; i++) { | |
3898 | field = &header->fields[i]; | |
ae0be8de MK |
3899 | field_attr = nla_nest_start_noflag(skb, |
3900 | DEVLINK_ATTR_DPIPE_FIELD); | |
1555d204 AS |
3901 | if (!field_attr) |
3902 | return -EMSGSIZE; | |
3903 | if (nla_put_string(skb, DEVLINK_ATTR_DPIPE_FIELD_NAME, field->name) || | |
3904 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_ID, field->id) || | |
3905 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_BITWIDTH, field->bitwidth) || | |
3906 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_MAPPING_TYPE, field->mapping_type)) | |
3907 | goto nla_put_failure; | |
3908 | nla_nest_end(skb, field_attr); | |
3909 | } | |
3910 | return 0; | |
3911 | ||
3912 | nla_put_failure: | |
3913 | nla_nest_cancel(skb, field_attr); | |
3914 | return -EMSGSIZE; | |
3915 | } | |
3916 | ||
3917 | static int devlink_dpipe_header_put(struct sk_buff *skb, | |
3918 | struct devlink_dpipe_header *header) | |
3919 | { | |
3920 | struct nlattr *fields_attr, *header_attr; | |
3921 | int err; | |
3922 | ||
ae0be8de | 3923 | header_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_HEADER); |
cb6bf9cf | 3924 | if (!header_attr) |
1555d204 AS |
3925 | return -EMSGSIZE; |
3926 | ||
3927 | if (nla_put_string(skb, DEVLINK_ATTR_DPIPE_HEADER_NAME, header->name) || | |
3928 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_ID, header->id) || | |
3929 | nla_put_u8(skb, DEVLINK_ATTR_DPIPE_HEADER_GLOBAL, header->global)) | |
3930 | goto nla_put_failure; | |
3931 | ||
ae0be8de MK |
3932 | fields_attr = nla_nest_start_noflag(skb, |
3933 | DEVLINK_ATTR_DPIPE_HEADER_FIELDS); | |
1555d204 AS |
3934 | if (!fields_attr) |
3935 | goto nla_put_failure; | |
3936 | ||
3937 | err = devlink_dpipe_fields_put(skb, header); | |
3938 | if (err) { | |
3939 | nla_nest_cancel(skb, fields_attr); | |
3940 | goto nla_put_failure; | |
3941 | } | |
3942 | nla_nest_end(skb, fields_attr); | |
3943 | nla_nest_end(skb, header_attr); | |
3944 | return 0; | |
3945 | ||
3946 | nla_put_failure: | |
3947 | err = -EMSGSIZE; | |
3948 | nla_nest_cancel(skb, header_attr); | |
3949 | return err; | |
3950 | } | |
3951 | ||
3952 | static int devlink_dpipe_headers_fill(struct genl_info *info, | |
3953 | enum devlink_command cmd, int flags, | |
3954 | struct devlink_dpipe_headers * | |
3955 | dpipe_headers) | |
3956 | { | |
3957 | struct devlink *devlink = info->user_ptr[0]; | |
3958 | struct nlattr *headers_attr; | |
3959 | struct sk_buff *skb = NULL; | |
3960 | struct nlmsghdr *nlh; | |
3961 | void *hdr; | |
3962 | int i, j; | |
3963 | int err; | |
3964 | ||
3965 | i = 0; | |
3966 | start_again: | |
3967 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); | |
3968 | if (err) | |
3969 | return err; | |
3970 | ||
3971 | hdr = genlmsg_put(skb, info->snd_portid, info->snd_seq, | |
3972 | &devlink_nl_family, NLM_F_MULTI, cmd); | |
6044bd4a HY |
3973 | if (!hdr) { |
3974 | nlmsg_free(skb); | |
1555d204 | 3975 | return -EMSGSIZE; |
6044bd4a | 3976 | } |
1555d204 AS |
3977 | |
3978 | if (devlink_nl_put_handle(skb, devlink)) | |
3979 | goto nla_put_failure; | |
ae0be8de | 3980 | headers_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_HEADERS); |
1555d204 AS |
3981 | if (!headers_attr) |
3982 | goto nla_put_failure; | |
3983 | ||
3984 | j = 0; | |
3985 | for (; i < dpipe_headers->headers_count; i++) { | |
3986 | err = devlink_dpipe_header_put(skb, dpipe_headers->headers[i]); | |
3987 | if (err) { | |
3988 | if (!j) | |
3989 | goto err_table_put; | |
3990 | break; | |
3991 | } | |
3992 | j++; | |
3993 | } | |
3994 | nla_nest_end(skb, headers_attr); | |
3995 | genlmsg_end(skb, hdr); | |
3996 | if (i != dpipe_headers->headers_count) | |
3997 | goto start_again; | |
3998 | ||
3999 | send_done: | |
4000 | nlh = nlmsg_put(skb, info->snd_portid, info->snd_seq, | |
4001 | NLMSG_DONE, 0, flags | NLM_F_MULTI); | |
4002 | if (!nlh) { | |
4003 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); | |
4004 | if (err) | |
7fe4d6dc | 4005 | return err; |
1555d204 AS |
4006 | goto send_done; |
4007 | } | |
4008 | return genlmsg_reply(skb, info); | |
4009 | ||
4010 | nla_put_failure: | |
4011 | err = -EMSGSIZE; | |
4012 | err_table_put: | |
1555d204 AS |
4013 | nlmsg_free(skb); |
4014 | return err; | |
4015 | } | |
4016 | ||
4017 | static int devlink_nl_cmd_dpipe_headers_get(struct sk_buff *skb, | |
4018 | struct genl_info *info) | |
4019 | { | |
4020 | struct devlink *devlink = info->user_ptr[0]; | |
4021 | ||
4022 | if (!devlink->dpipe_headers) | |
4023 | return -EOPNOTSUPP; | |
4024 | return devlink_dpipe_headers_fill(info, DEVLINK_CMD_DPIPE_HEADERS_GET, | |
4025 | 0, devlink->dpipe_headers); | |
4026 | } | |
4027 | ||
4028 | static int devlink_dpipe_table_counters_set(struct devlink *devlink, | |
4029 | const char *table_name, | |
4030 | bool enable) | |
4031 | { | |
4032 | struct devlink_dpipe_table *table; | |
4033 | ||
4034 | table = devlink_dpipe_table_find(&devlink->dpipe_table_list, | |
2eb51c75 | 4035 | table_name, devlink); |
1555d204 AS |
4036 | if (!table) |
4037 | return -EINVAL; | |
4038 | ||
4039 | if (table->counter_control_extern) | |
4040 | return -EOPNOTSUPP; | |
4041 | ||
4042 | if (!(table->counters_enabled ^ enable)) | |
4043 | return 0; | |
4044 | ||
4045 | table->counters_enabled = enable; | |
4046 | if (table->table_ops->counters_set_update) | |
4047 | table->table_ops->counters_set_update(table->priv, enable); | |
4048 | return 0; | |
4049 | } | |
4050 | ||
4051 | static int devlink_nl_cmd_dpipe_table_counters_set(struct sk_buff *skb, | |
4052 | struct genl_info *info) | |
4053 | { | |
4054 | struct devlink *devlink = info->user_ptr[0]; | |
4055 | const char *table_name; | |
4056 | bool counters_enable; | |
4057 | ||
4058 | if (!info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME] || | |
4059 | !info->attrs[DEVLINK_ATTR_DPIPE_TABLE_COUNTERS_ENABLED]) | |
4060 | return -EINVAL; | |
4061 | ||
4062 | table_name = nla_data(info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME]); | |
4063 | counters_enable = !!nla_get_u8(info->attrs[DEVLINK_ATTR_DPIPE_TABLE_COUNTERS_ENABLED]); | |
4064 | ||
4065 | return devlink_dpipe_table_counters_set(devlink, table_name, | |
4066 | counters_enable); | |
08f4b591 OG |
4067 | } |
4068 | ||
43dd7512 | 4069 | static struct devlink_resource * |
d9f9b9a4 AS |
4070 | devlink_resource_find(struct devlink *devlink, |
4071 | struct devlink_resource *resource, u64 resource_id) | |
4072 | { | |
4073 | struct list_head *resource_list; | |
4074 | ||
4075 | if (resource) | |
4076 | resource_list = &resource->resource_list; | |
4077 | else | |
4078 | resource_list = &devlink->resource_list; | |
4079 | ||
4080 | list_for_each_entry(resource, resource_list, list) { | |
4081 | struct devlink_resource *child_resource; | |
4082 | ||
4083 | if (resource->id == resource_id) | |
4084 | return resource; | |
4085 | ||
4086 | child_resource = devlink_resource_find(devlink, resource, | |
4087 | resource_id); | |
4088 | if (child_resource) | |
4089 | return child_resource; | |
4090 | } | |
4091 | return NULL; | |
4092 | } | |
4093 | ||
43dd7512 WY |
4094 | static void |
4095 | devlink_resource_validate_children(struct devlink_resource *resource) | |
d9f9b9a4 AS |
4096 | { |
4097 | struct devlink_resource *child_resource; | |
4098 | bool size_valid = true; | |
4099 | u64 parts_size = 0; | |
4100 | ||
4101 | if (list_empty(&resource->resource_list)) | |
4102 | goto out; | |
4103 | ||
4104 | list_for_each_entry(child_resource, &resource->resource_list, list) | |
4105 | parts_size += child_resource->size_new; | |
4106 | ||
b9d17175 | 4107 | if (parts_size > resource->size_new) |
d9f9b9a4 AS |
4108 | size_valid = false; |
4109 | out: | |
4110 | resource->size_valid = size_valid; | |
4111 | } | |
4112 | ||
cc944ead AS |
4113 | static int |
4114 | devlink_resource_validate_size(struct devlink_resource *resource, u64 size, | |
4115 | struct netlink_ext_ack *extack) | |
4116 | { | |
4117 | u64 reminder; | |
4118 | int err = 0; | |
4119 | ||
0f3e9c97 | 4120 | if (size > resource->size_params.size_max) { |
cc944ead AS |
4121 | NL_SET_ERR_MSG_MOD(extack, "Size larger than maximum"); |
4122 | err = -EINVAL; | |
4123 | } | |
4124 | ||
0f3e9c97 | 4125 | if (size < resource->size_params.size_min) { |
cc944ead AS |
4126 | NL_SET_ERR_MSG_MOD(extack, "Size smaller than minimum"); |
4127 | err = -EINVAL; | |
4128 | } | |
4129 | ||
0f3e9c97 | 4130 | div64_u64_rem(size, resource->size_params.size_granularity, &reminder); |
cc944ead AS |
4131 | if (reminder) { |
4132 | NL_SET_ERR_MSG_MOD(extack, "Wrong granularity"); | |
4133 | err = -EINVAL; | |
4134 | } | |
4135 | ||
4136 | return err; | |
4137 | } | |
4138 | ||
d9f9b9a4 AS |
4139 | static int devlink_nl_cmd_resource_set(struct sk_buff *skb, |
4140 | struct genl_info *info) | |
4141 | { | |
4142 | struct devlink *devlink = info->user_ptr[0]; | |
4143 | struct devlink_resource *resource; | |
4144 | u64 resource_id; | |
4145 | u64 size; | |
4146 | int err; | |
4147 | ||
4148 | if (!info->attrs[DEVLINK_ATTR_RESOURCE_ID] || | |
4149 | !info->attrs[DEVLINK_ATTR_RESOURCE_SIZE]) | |
4150 | return -EINVAL; | |
4151 | resource_id = nla_get_u64(info->attrs[DEVLINK_ATTR_RESOURCE_ID]); | |
4152 | ||
4153 | resource = devlink_resource_find(devlink, NULL, resource_id); | |
4154 | if (!resource) | |
4155 | return -EINVAL; | |
4156 | ||
d9f9b9a4 | 4157 | size = nla_get_u64(info->attrs[DEVLINK_ATTR_RESOURCE_SIZE]); |
cc944ead | 4158 | err = devlink_resource_validate_size(resource, size, info->extack); |
d9f9b9a4 AS |
4159 | if (err) |
4160 | return err; | |
4161 | ||
4162 | resource->size_new = size; | |
4163 | devlink_resource_validate_children(resource); | |
4164 | if (resource->parent) | |
4165 | devlink_resource_validate_children(resource->parent); | |
4166 | return 0; | |
4167 | } | |
4168 | ||
3d18e4f1 | 4169 | static int |
d9f9b9a4 AS |
4170 | devlink_resource_size_params_put(struct devlink_resource *resource, |
4171 | struct sk_buff *skb) | |
4172 | { | |
4173 | struct devlink_resource_size_params *size_params; | |
4174 | ||
77d27096 | 4175 | size_params = &resource->size_params; |
3d18e4f1 AS |
4176 | if (nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE_GRAN, |
4177 | size_params->size_granularity, DEVLINK_ATTR_PAD) || | |
4178 | nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE_MAX, | |
4179 | size_params->size_max, DEVLINK_ATTR_PAD) || | |
4180 | nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE_MIN, | |
4181 | size_params->size_min, DEVLINK_ATTR_PAD) || | |
4182 | nla_put_u8(skb, DEVLINK_ATTR_RESOURCE_UNIT, size_params->unit)) | |
4183 | return -EMSGSIZE; | |
4184 | return 0; | |
d9f9b9a4 AS |
4185 | } |
4186 | ||
fc56be47 JP |
4187 | static int devlink_resource_occ_put(struct devlink_resource *resource, |
4188 | struct sk_buff *skb) | |
4189 | { | |
4190 | if (!resource->occ_get) | |
4191 | return 0; | |
4192 | return nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_OCC, | |
4193 | resource->occ_get(resource->occ_get_priv), | |
4194 | DEVLINK_ATTR_PAD); | |
4195 | } | |
4196 | ||
d9f9b9a4 AS |
4197 | static int devlink_resource_put(struct devlink *devlink, struct sk_buff *skb, |
4198 | struct devlink_resource *resource) | |
4199 | { | |
4200 | struct devlink_resource *child_resource; | |
4201 | struct nlattr *child_resource_attr; | |
4202 | struct nlattr *resource_attr; | |
4203 | ||
ae0be8de | 4204 | resource_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_RESOURCE); |
d9f9b9a4 AS |
4205 | if (!resource_attr) |
4206 | return -EMSGSIZE; | |
4207 | ||
4208 | if (nla_put_string(skb, DEVLINK_ATTR_RESOURCE_NAME, resource->name) || | |
4209 | nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE, resource->size, | |
4210 | DEVLINK_ATTR_PAD) || | |
4211 | nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_ID, resource->id, | |
4212 | DEVLINK_ATTR_PAD)) | |
4213 | goto nla_put_failure; | |
4214 | if (resource->size != resource->size_new) | |
4215 | nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE_NEW, | |
4216 | resource->size_new, DEVLINK_ATTR_PAD); | |
fc56be47 JP |
4217 | if (devlink_resource_occ_put(resource, skb)) |
4218 | goto nla_put_failure; | |
3d18e4f1 AS |
4219 | if (devlink_resource_size_params_put(resource, skb)) |
4220 | goto nla_put_failure; | |
d9f9b9a4 AS |
4221 | if (list_empty(&resource->resource_list)) |
4222 | goto out; | |
4223 | ||
4224 | if (nla_put_u8(skb, DEVLINK_ATTR_RESOURCE_SIZE_VALID, | |
4225 | resource->size_valid)) | |
4226 | goto nla_put_failure; | |
4227 | ||
ae0be8de MK |
4228 | child_resource_attr = nla_nest_start_noflag(skb, |
4229 | DEVLINK_ATTR_RESOURCE_LIST); | |
d9f9b9a4 AS |
4230 | if (!child_resource_attr) |
4231 | goto nla_put_failure; | |
4232 | ||
4233 | list_for_each_entry(child_resource, &resource->resource_list, list) { | |
4234 | if (devlink_resource_put(devlink, skb, child_resource)) | |
4235 | goto resource_put_failure; | |
4236 | } | |
4237 | ||
4238 | nla_nest_end(skb, child_resource_attr); | |
4239 | out: | |
4240 | nla_nest_end(skb, resource_attr); | |
4241 | return 0; | |
4242 | ||
4243 | resource_put_failure: | |
4244 | nla_nest_cancel(skb, child_resource_attr); | |
4245 | nla_put_failure: | |
4246 | nla_nest_cancel(skb, resource_attr); | |
4247 | return -EMSGSIZE; | |
4248 | } | |
4249 | ||
4250 | static int devlink_resource_fill(struct genl_info *info, | |
4251 | enum devlink_command cmd, int flags) | |
4252 | { | |
4253 | struct devlink *devlink = info->user_ptr[0]; | |
4254 | struct devlink_resource *resource; | |
4255 | struct nlattr *resources_attr; | |
4256 | struct sk_buff *skb = NULL; | |
4257 | struct nlmsghdr *nlh; | |
4258 | bool incomplete; | |
4259 | void *hdr; | |
4260 | int i; | |
4261 | int err; | |
4262 | ||
4263 | resource = list_first_entry(&devlink->resource_list, | |
4264 | struct devlink_resource, list); | |
4265 | start_again: | |
4266 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); | |
4267 | if (err) | |
4268 | return err; | |
4269 | ||
4270 | hdr = genlmsg_put(skb, info->snd_portid, info->snd_seq, | |
4271 | &devlink_nl_family, NLM_F_MULTI, cmd); | |
4272 | if (!hdr) { | |
4273 | nlmsg_free(skb); | |
4274 | return -EMSGSIZE; | |
4275 | } | |
4276 | ||
4277 | if (devlink_nl_put_handle(skb, devlink)) | |
4278 | goto nla_put_failure; | |
4279 | ||
ae0be8de MK |
4280 | resources_attr = nla_nest_start_noflag(skb, |
4281 | DEVLINK_ATTR_RESOURCE_LIST); | |
d9f9b9a4 AS |
4282 | if (!resources_attr) |
4283 | goto nla_put_failure; | |
4284 | ||
4285 | incomplete = false; | |
4286 | i = 0; | |
4287 | list_for_each_entry_from(resource, &devlink->resource_list, list) { | |
4288 | err = devlink_resource_put(devlink, skb, resource); | |
4289 | if (err) { | |
4290 | if (!i) | |
4291 | goto err_resource_put; | |
4292 | incomplete = true; | |
4293 | break; | |
4294 | } | |
4295 | i++; | |
4296 | } | |
4297 | nla_nest_end(skb, resources_attr); | |
4298 | genlmsg_end(skb, hdr); | |
4299 | if (incomplete) | |
4300 | goto start_again; | |
4301 | send_done: | |
4302 | nlh = nlmsg_put(skb, info->snd_portid, info->snd_seq, | |
4303 | NLMSG_DONE, 0, flags | NLM_F_MULTI); | |
4304 | if (!nlh) { | |
4305 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); | |
4306 | if (err) | |
83fe9a96 | 4307 | return err; |
d9f9b9a4 AS |
4308 | goto send_done; |
4309 | } | |
4310 | return genlmsg_reply(skb, info); | |
4311 | ||
4312 | nla_put_failure: | |
4313 | err = -EMSGSIZE; | |
4314 | err_resource_put: | |
d9f9b9a4 AS |
4315 | nlmsg_free(skb); |
4316 | return err; | |
4317 | } | |
4318 | ||
4319 | static int devlink_nl_cmd_resource_dump(struct sk_buff *skb, | |
4320 | struct genl_info *info) | |
4321 | { | |
4322 | struct devlink *devlink = info->user_ptr[0]; | |
4323 | ||
4324 | if (list_empty(&devlink->resource_list)) | |
4325 | return -EOPNOTSUPP; | |
4326 | ||
4327 | return devlink_resource_fill(info, DEVLINK_CMD_RESOURCE_DUMP, 0); | |
4328 | } | |
4329 | ||
2d8dc5bb AS |
4330 | static int |
4331 | devlink_resources_validate(struct devlink *devlink, | |
4332 | struct devlink_resource *resource, | |
4333 | struct genl_info *info) | |
4334 | { | |
4335 | struct list_head *resource_list; | |
4336 | int err = 0; | |
4337 | ||
4338 | if (resource) | |
4339 | resource_list = &resource->resource_list; | |
4340 | else | |
4341 | resource_list = &devlink->resource_list; | |
4342 | ||
4343 | list_for_each_entry(resource, resource_list, list) { | |
4344 | if (!resource->size_valid) | |
4345 | return -EINVAL; | |
4346 | err = devlink_resources_validate(devlink, resource, info); | |
4347 | if (err) | |
4348 | return err; | |
4349 | } | |
4350 | return err; | |
4351 | } | |
4352 | ||
070c63f2 JP |
4353 | static struct net *devlink_netns_get(struct sk_buff *skb, |
4354 | struct genl_info *info) | |
4355 | { | |
4356 | struct nlattr *netns_pid_attr = info->attrs[DEVLINK_ATTR_NETNS_PID]; | |
4357 | struct nlattr *netns_fd_attr = info->attrs[DEVLINK_ATTR_NETNS_FD]; | |
4358 | struct nlattr *netns_id_attr = info->attrs[DEVLINK_ATTR_NETNS_ID]; | |
4359 | struct net *net; | |
4360 | ||
4361 | if (!!netns_pid_attr + !!netns_fd_attr + !!netns_id_attr > 1) { | |
054eae82 | 4362 | NL_SET_ERR_MSG_MOD(info->extack, "multiple netns identifying attributes specified"); |
070c63f2 JP |
4363 | return ERR_PTR(-EINVAL); |
4364 | } | |
4365 | ||
4366 | if (netns_pid_attr) { | |
4367 | net = get_net_ns_by_pid(nla_get_u32(netns_pid_attr)); | |
4368 | } else if (netns_fd_attr) { | |
4369 | net = get_net_ns_by_fd(nla_get_u32(netns_fd_attr)); | |
4370 | } else if (netns_id_attr) { | |
4371 | net = get_net_ns_by_id(sock_net(skb->sk), | |
4372 | nla_get_u32(netns_id_attr)); | |
4373 | if (!net) | |
4374 | net = ERR_PTR(-EINVAL); | |
4375 | } else { | |
4376 | WARN_ON(1); | |
4377 | net = ERR_PTR(-EINVAL); | |
4378 | } | |
4379 | if (IS_ERR(net)) { | |
054eae82 | 4380 | NL_SET_ERR_MSG_MOD(info->extack, "Unknown network namespace"); |
070c63f2 JP |
4381 | return ERR_PTR(-EINVAL); |
4382 | } | |
4383 | if (!netlink_ns_capable(skb, net->user_ns, CAP_NET_ADMIN)) { | |
4384 | put_net(net); | |
4385 | return ERR_PTR(-EPERM); | |
4386 | } | |
4387 | return net; | |
4388 | } | |
4389 | ||
4390 | static void devlink_param_notify(struct devlink *devlink, | |
4391 | unsigned int port_index, | |
4392 | struct devlink_param_item *param_item, | |
4393 | enum devlink_command cmd); | |
4394 | ||
05a7f4a8 LR |
4395 | static void devlink_ns_change_notify(struct devlink *devlink, |
4396 | struct net *dest_net, struct net *curr_net, | |
4397 | bool new) | |
070c63f2 JP |
4398 | { |
4399 | struct devlink_param_item *param_item; | |
05a7f4a8 | 4400 | enum devlink_command cmd; |
070c63f2 JP |
4401 | |
4402 | /* Userspace needs to be notified about devlink objects | |
4403 | * removed from original and entering new network namespace. | |
4404 | * The rest of the devlink objects are re-created during | |
4405 | * reload process so the notifications are generated separatelly. | |
4406 | */ | |
4407 | ||
05a7f4a8 LR |
4408 | if (!dest_net || net_eq(dest_net, curr_net)) |
4409 | return; | |
070c63f2 | 4410 | |
05a7f4a8 LR |
4411 | if (new) |
4412 | devlink_notify(devlink, DEVLINK_CMD_NEW); | |
070c63f2 | 4413 | |
05a7f4a8 | 4414 | cmd = new ? DEVLINK_CMD_PARAM_NEW : DEVLINK_CMD_PARAM_DEL; |
070c63f2 | 4415 | list_for_each_entry(param_item, &devlink->param_list, list) |
05a7f4a8 LR |
4416 | devlink_param_notify(devlink, 0, param_item, cmd); |
4417 | ||
4418 | if (!new) | |
4419 | devlink_notify(devlink, DEVLINK_CMD_DEL); | |
070c63f2 JP |
4420 | } |
4421 | ||
69d56e0e | 4422 | static bool devlink_reload_supported(const struct devlink_ops *ops) |
97691069 | 4423 | { |
69d56e0e | 4424 | return ops->reload_down && ops->reload_up; |
97691069 JP |
4425 | } |
4426 | ||
2670ac26 JP |
4427 | static void devlink_reload_failed_set(struct devlink *devlink, |
4428 | bool reload_failed) | |
4429 | { | |
4430 | if (devlink->reload_failed == reload_failed) | |
4431 | return; | |
4432 | devlink->reload_failed = reload_failed; | |
4433 | devlink_notify(devlink, DEVLINK_CMD_NEW); | |
4434 | } | |
4435 | ||
4436 | bool devlink_is_reload_failed(const struct devlink *devlink) | |
4437 | { | |
4438 | return devlink->reload_failed; | |
4439 | } | |
4440 | EXPORT_SYMBOL_GPL(devlink_is_reload_failed); | |
4441 | ||
a254c264 MS |
4442 | static void |
4443 | __devlink_reload_stats_update(struct devlink *devlink, u32 *reload_stats, | |
4444 | enum devlink_reload_limit limit, u32 actions_performed) | |
4445 | { | |
4446 | unsigned long actions = actions_performed; | |
4447 | int stat_idx; | |
4448 | int action; | |
4449 | ||
4450 | for_each_set_bit(action, &actions, __DEVLINK_RELOAD_ACTION_MAX) { | |
4451 | stat_idx = limit * __DEVLINK_RELOAD_ACTION_MAX + action; | |
4452 | reload_stats[stat_idx]++; | |
4453 | } | |
4454 | devlink_notify(devlink, DEVLINK_CMD_NEW); | |
4455 | } | |
4456 | ||
4457 | static void | |
4458 | devlink_reload_stats_update(struct devlink *devlink, enum devlink_reload_limit limit, | |
4459 | u32 actions_performed) | |
4460 | { | |
4461 | __devlink_reload_stats_update(devlink, devlink->stats.reload_stats, limit, | |
4462 | actions_performed); | |
4463 | } | |
4464 | ||
77069ba2 MS |
4465 | /** |
4466 | * devlink_remote_reload_actions_performed - Update devlink on reload actions | |
4467 | * performed which are not a direct result of devlink reload call. | |
4468 | * | |
4469 | * This should be called by a driver after performing reload actions in case it was not | |
4470 | * a result of devlink reload call. For example fw_activate was performed as a result | |
4471 | * of devlink reload triggered fw_activate on another host. | |
4472 | * The motivation for this function is to keep data on reload actions performed on this | |
4473 | * function whether it was done due to direct devlink reload call or not. | |
4474 | * | |
4475 | * @devlink: devlink | |
4476 | * @limit: reload limit | |
4477 | * @actions_performed: bitmask of actions performed | |
4478 | */ | |
4479 | void devlink_remote_reload_actions_performed(struct devlink *devlink, | |
4480 | enum devlink_reload_limit limit, | |
4481 | u32 actions_performed) | |
4482 | { | |
4483 | if (WARN_ON(!actions_performed || | |
4484 | actions_performed & BIT(DEVLINK_RELOAD_ACTION_UNSPEC) || | |
4485 | actions_performed >= BIT(__DEVLINK_RELOAD_ACTION_MAX) || | |
4486 | limit > DEVLINK_RELOAD_LIMIT_MAX)) | |
4487 | return; | |
4488 | ||
4489 | __devlink_reload_stats_update(devlink, devlink->stats.remote_reload_stats, limit, | |
4490 | actions_performed); | |
4491 | } | |
4492 | EXPORT_SYMBOL_GPL(devlink_remote_reload_actions_performed); | |
4493 | ||
070c63f2 | 4494 | static int devlink_reload(struct devlink *devlink, struct net *dest_net, |
dc64cc7c MS |
4495 | enum devlink_reload_action action, enum devlink_reload_limit limit, |
4496 | u32 *actions_performed, struct netlink_ext_ack *extack) | |
070c63f2 | 4497 | { |
77069ba2 | 4498 | u32 remote_reload_stats[DEVLINK_RELOAD_STATS_ARRAY_SIZE]; |
05a7f4a8 | 4499 | struct net *curr_net; |
070c63f2 JP |
4500 | int err; |
4501 | ||
77069ba2 MS |
4502 | memcpy(remote_reload_stats, devlink->stats.remote_reload_stats, |
4503 | sizeof(remote_reload_stats)); | |
05a7f4a8 LR |
4504 | |
4505 | curr_net = devlink_net(devlink); | |
4506 | devlink_ns_change_notify(devlink, dest_net, curr_net, false); | |
dc64cc7c | 4507 | err = devlink->ops->reload_down(devlink, !!dest_net, action, limit, extack); |
070c63f2 JP |
4508 | if (err) |
4509 | return err; | |
4510 | ||
05a7f4a8 | 4511 | if (dest_net && !net_eq(dest_net, curr_net)) |
26713455 | 4512 | write_pnet(&devlink->_net, dest_net); |
070c63f2 | 4513 | |
dc64cc7c | 4514 | err = devlink->ops->reload_up(devlink, action, limit, actions_performed, extack); |
070c63f2 | 4515 | devlink_reload_failed_set(devlink, !!err); |
ccdf0721 MS |
4516 | if (err) |
4517 | return err; | |
4518 | ||
05a7f4a8 | 4519 | devlink_ns_change_notify(devlink, dest_net, curr_net, true); |
ccdf0721 | 4520 | WARN_ON(!(*actions_performed & BIT(action))); |
77069ba2 MS |
4521 | /* Catch driver on updating the remote action within devlink reload */ |
4522 | WARN_ON(memcmp(remote_reload_stats, devlink->stats.remote_reload_stats, | |
4523 | sizeof(remote_reload_stats))); | |
a254c264 | 4524 | devlink_reload_stats_update(devlink, limit, *actions_performed); |
ccdf0721 MS |
4525 | return 0; |
4526 | } | |
4527 | ||
4528 | static int | |
4529 | devlink_nl_reload_actions_performed_snd(struct devlink *devlink, u32 actions_performed, | |
4530 | enum devlink_command cmd, struct genl_info *info) | |
4531 | { | |
4532 | struct sk_buff *msg; | |
4533 | void *hdr; | |
4534 | ||
4535 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
4536 | if (!msg) | |
4537 | return -ENOMEM; | |
4538 | ||
4539 | hdr = genlmsg_put(msg, info->snd_portid, info->snd_seq, &devlink_nl_family, 0, cmd); | |
4540 | if (!hdr) | |
4541 | goto free_msg; | |
4542 | ||
4543 | if (devlink_nl_put_handle(msg, devlink)) | |
4544 | goto nla_put_failure; | |
4545 | ||
4546 | if (nla_put_bitfield32(msg, DEVLINK_ATTR_RELOAD_ACTIONS_PERFORMED, actions_performed, | |
4547 | actions_performed)) | |
4548 | goto nla_put_failure; | |
4549 | genlmsg_end(msg, hdr); | |
4550 | ||
4551 | return genlmsg_reply(msg, info); | |
4552 | ||
4553 | nla_put_failure: | |
4554 | genlmsg_cancel(msg, hdr); | |
4555 | free_msg: | |
4556 | nlmsg_free(msg); | |
4557 | return -EMSGSIZE; | |
070c63f2 JP |
4558 | } |
4559 | ||
2d8dc5bb AS |
4560 | static int devlink_nl_cmd_reload(struct sk_buff *skb, struct genl_info *info) |
4561 | { | |
4562 | struct devlink *devlink = info->user_ptr[0]; | |
ccdf0721 | 4563 | enum devlink_reload_action action; |
dc64cc7c | 4564 | enum devlink_reload_limit limit; |
070c63f2 | 4565 | struct net *dest_net = NULL; |
ccdf0721 | 4566 | u32 actions_performed; |
2d8dc5bb AS |
4567 | int err; |
4568 | ||
82465bec | 4569 | if (!(devlink->features & DEVLINK_F_RELOAD)) |
2d8dc5bb AS |
4570 | return -EOPNOTSUPP; |
4571 | ||
4572 | err = devlink_resources_validate(devlink, NULL, info); | |
4573 | if (err) { | |
4574 | NL_SET_ERR_MSG_MOD(info->extack, "resources size validation failed"); | |
4575 | return err; | |
4576 | } | |
070c63f2 | 4577 | |
ccdf0721 MS |
4578 | if (info->attrs[DEVLINK_ATTR_RELOAD_ACTION]) |
4579 | action = nla_get_u8(info->attrs[DEVLINK_ATTR_RELOAD_ACTION]); | |
4580 | else | |
4581 | action = DEVLINK_RELOAD_ACTION_DRIVER_REINIT; | |
4582 | ||
4583 | if (!devlink_reload_action_is_supported(devlink, action)) { | |
4584 | NL_SET_ERR_MSG_MOD(info->extack, | |
4585 | "Requested reload action is not supported by the driver"); | |
4586 | return -EOPNOTSUPP; | |
4587 | } | |
4588 | ||
dc64cc7c MS |
4589 | limit = DEVLINK_RELOAD_LIMIT_UNSPEC; |
4590 | if (info->attrs[DEVLINK_ATTR_RELOAD_LIMITS]) { | |
4591 | struct nla_bitfield32 limits; | |
4592 | u32 limits_selected; | |
4593 | ||
4594 | limits = nla_get_bitfield32(info->attrs[DEVLINK_ATTR_RELOAD_LIMITS]); | |
4595 | limits_selected = limits.value & limits.selector; | |
4596 | if (!limits_selected) { | |
4597 | NL_SET_ERR_MSG_MOD(info->extack, "Invalid limit selected"); | |
4598 | return -EINVAL; | |
4599 | } | |
4600 | for (limit = 0 ; limit <= DEVLINK_RELOAD_LIMIT_MAX ; limit++) | |
4601 | if (limits_selected & BIT(limit)) | |
4602 | break; | |
4603 | /* UAPI enables multiselection, but currently it is not used */ | |
4604 | if (limits_selected != BIT(limit)) { | |
4605 | NL_SET_ERR_MSG_MOD(info->extack, | |
4606 | "Multiselection of limit is not supported"); | |
4607 | return -EOPNOTSUPP; | |
4608 | } | |
4609 | if (!devlink_reload_limit_is_supported(devlink, limit)) { | |
4610 | NL_SET_ERR_MSG_MOD(info->extack, | |
4611 | "Requested limit is not supported by the driver"); | |
4612 | return -EOPNOTSUPP; | |
4613 | } | |
4614 | if (devlink_reload_combination_is_invalid(action, limit)) { | |
4615 | NL_SET_ERR_MSG_MOD(info->extack, | |
4616 | "Requested limit is invalid for this action"); | |
4617 | return -EINVAL; | |
4618 | } | |
4619 | } | |
4dbb0dad ED |
4620 | if (info->attrs[DEVLINK_ATTR_NETNS_PID] || |
4621 | info->attrs[DEVLINK_ATTR_NETNS_FD] || | |
4622 | info->attrs[DEVLINK_ATTR_NETNS_ID]) { | |
4623 | dest_net = devlink_netns_get(skb, info); | |
4624 | if (IS_ERR(dest_net)) | |
4625 | return PTR_ERR(dest_net); | |
4626 | } | |
4627 | ||
dc64cc7c | 4628 | err = devlink_reload(devlink, dest_net, action, limit, &actions_performed, info->extack); |
070c63f2 JP |
4629 | |
4630 | if (dest_net) | |
4631 | put_net(dest_net); | |
4632 | ||
ccdf0721 MS |
4633 | if (err) |
4634 | return err; | |
4635 | /* For backward compatibility generate reply only if attributes used by user */ | |
dc64cc7c | 4636 | if (!info->attrs[DEVLINK_ATTR_RELOAD_ACTION] && !info->attrs[DEVLINK_ATTR_RELOAD_LIMITS]) |
ccdf0721 MS |
4637 | return 0; |
4638 | ||
4639 | return devlink_nl_reload_actions_performed_snd(devlink, actions_performed, | |
4640 | DEVLINK_CMD_RELOAD, info); | |
2d8dc5bb AS |
4641 | } |
4642 | ||
191ed202 JP |
4643 | static int devlink_nl_flash_update_fill(struct sk_buff *msg, |
4644 | struct devlink *devlink, | |
4645 | enum devlink_command cmd, | |
6700acc5 | 4646 | struct devlink_flash_notify *params) |
191ed202 JP |
4647 | { |
4648 | void *hdr; | |
4649 | ||
4650 | hdr = genlmsg_put(msg, 0, 0, &devlink_nl_family, 0, cmd); | |
4651 | if (!hdr) | |
4652 | return -EMSGSIZE; | |
4653 | ||
4654 | if (devlink_nl_put_handle(msg, devlink)) | |
4655 | goto nla_put_failure; | |
4656 | ||
4657 | if (cmd != DEVLINK_CMD_FLASH_UPDATE_STATUS) | |
4658 | goto out; | |
4659 | ||
6700acc5 | 4660 | if (params->status_msg && |
191ed202 | 4661 | nla_put_string(msg, DEVLINK_ATTR_FLASH_UPDATE_STATUS_MSG, |
6700acc5 | 4662 | params->status_msg)) |
191ed202 | 4663 | goto nla_put_failure; |
6700acc5 | 4664 | if (params->component && |
191ed202 | 4665 | nla_put_string(msg, DEVLINK_ATTR_FLASH_UPDATE_COMPONENT, |
6700acc5 | 4666 | params->component)) |
191ed202 JP |
4667 | goto nla_put_failure; |
4668 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_FLASH_UPDATE_STATUS_DONE, | |
6700acc5 | 4669 | params->done, DEVLINK_ATTR_PAD)) |
191ed202 JP |
4670 | goto nla_put_failure; |
4671 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_FLASH_UPDATE_STATUS_TOTAL, | |
6700acc5 | 4672 | params->total, DEVLINK_ATTR_PAD)) |
191ed202 | 4673 | goto nla_put_failure; |
f92970c6 | 4674 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_FLASH_UPDATE_STATUS_TIMEOUT, |
6700acc5 | 4675 | params->timeout, DEVLINK_ATTR_PAD)) |
f92970c6 | 4676 | goto nla_put_failure; |
191ed202 JP |
4677 | |
4678 | out: | |
4679 | genlmsg_end(msg, hdr); | |
4680 | return 0; | |
4681 | ||
4682 | nla_put_failure: | |
4683 | genlmsg_cancel(msg, hdr); | |
4684 | return -EMSGSIZE; | |
4685 | } | |
4686 | ||
4687 | static void __devlink_flash_update_notify(struct devlink *devlink, | |
4688 | enum devlink_command cmd, | |
6700acc5 | 4689 | struct devlink_flash_notify *params) |
191ed202 JP |
4690 | { |
4691 | struct sk_buff *msg; | |
4692 | int err; | |
4693 | ||
4694 | WARN_ON(cmd != DEVLINK_CMD_FLASH_UPDATE && | |
4695 | cmd != DEVLINK_CMD_FLASH_UPDATE_END && | |
4696 | cmd != DEVLINK_CMD_FLASH_UPDATE_STATUS); | |
fec1faf2 LR |
4697 | |
4698 | if (!xa_get_mark(&devlinks, devlink->index, DEVLINK_REGISTERED)) | |
4699 | return; | |
191ed202 JP |
4700 | |
4701 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
4702 | if (!msg) | |
4703 | return; | |
4704 | ||
6700acc5 | 4705 | err = devlink_nl_flash_update_fill(msg, devlink, cmd, params); |
191ed202 JP |
4706 | if (err) |
4707 | goto out_free_msg; | |
4708 | ||
4709 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), | |
4710 | msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
4711 | return; | |
4712 | ||
4713 | out_free_msg: | |
4714 | nlmsg_free(msg); | |
4715 | } | |
4716 | ||
52cc5f3a | 4717 | static void devlink_flash_update_begin_notify(struct devlink *devlink) |
191ed202 | 4718 | { |
ed43fbac | 4719 | struct devlink_flash_notify params = {}; |
6700acc5 | 4720 | |
191ed202 JP |
4721 | __devlink_flash_update_notify(devlink, |
4722 | DEVLINK_CMD_FLASH_UPDATE, | |
6700acc5 | 4723 | ¶ms); |
191ed202 | 4724 | } |
191ed202 | 4725 | |
52cc5f3a | 4726 | static void devlink_flash_update_end_notify(struct devlink *devlink) |
191ed202 | 4727 | { |
ed43fbac | 4728 | struct devlink_flash_notify params = {}; |
6700acc5 | 4729 | |
191ed202 JP |
4730 | __devlink_flash_update_notify(devlink, |
4731 | DEVLINK_CMD_FLASH_UPDATE_END, | |
6700acc5 | 4732 | ¶ms); |
191ed202 | 4733 | } |
191ed202 JP |
4734 | |
4735 | void devlink_flash_update_status_notify(struct devlink *devlink, | |
4736 | const char *status_msg, | |
4737 | const char *component, | |
4738 | unsigned long done, | |
4739 | unsigned long total) | |
4740 | { | |
6700acc5 SN |
4741 | struct devlink_flash_notify params = { |
4742 | .status_msg = status_msg, | |
4743 | .component = component, | |
4744 | .done = done, | |
4745 | .total = total, | |
4746 | }; | |
4747 | ||
191ed202 JP |
4748 | __devlink_flash_update_notify(devlink, |
4749 | DEVLINK_CMD_FLASH_UPDATE_STATUS, | |
6700acc5 | 4750 | ¶ms); |
191ed202 JP |
4751 | } |
4752 | EXPORT_SYMBOL_GPL(devlink_flash_update_status_notify); | |
4753 | ||
f92970c6 SN |
4754 | void devlink_flash_update_timeout_notify(struct devlink *devlink, |
4755 | const char *status_msg, | |
4756 | const char *component, | |
4757 | unsigned long timeout) | |
4758 | { | |
6700acc5 SN |
4759 | struct devlink_flash_notify params = { |
4760 | .status_msg = status_msg, | |
4761 | .component = component, | |
4762 | .timeout = timeout, | |
4763 | }; | |
4764 | ||
f92970c6 SN |
4765 | __devlink_flash_update_notify(devlink, |
4766 | DEVLINK_CMD_FLASH_UPDATE_STATUS, | |
6700acc5 | 4767 | ¶ms); |
f92970c6 SN |
4768 | } |
4769 | EXPORT_SYMBOL_GPL(devlink_flash_update_timeout_notify); | |
4770 | ||
76726ccb JK |
4771 | static int devlink_nl_cmd_flash_update(struct sk_buff *skb, |
4772 | struct genl_info *info) | |
4773 | { | |
b44cfd4f | 4774 | struct nlattr *nla_component, *nla_overwrite_mask, *nla_file_name; |
bc75c054 | 4775 | struct devlink_flash_update_params params = {}; |
76726ccb | 4776 | struct devlink *devlink = info->user_ptr[0]; |
b44cfd4f | 4777 | const char *file_name; |
22ec3d23 | 4778 | u32 supported_params; |
b44cfd4f | 4779 | int ret; |
76726ccb JK |
4780 | |
4781 | if (!devlink->ops->flash_update) | |
4782 | return -EOPNOTSUPP; | |
4783 | ||
4784 | if (!info->attrs[DEVLINK_ATTR_FLASH_UPDATE_FILE_NAME]) | |
4785 | return -EINVAL; | |
22ec3d23 JK |
4786 | |
4787 | supported_params = devlink->ops->supported_flash_update_params; | |
4788 | ||
76726ccb | 4789 | nla_component = info->attrs[DEVLINK_ATTR_FLASH_UPDATE_COMPONENT]; |
22ec3d23 JK |
4790 | if (nla_component) { |
4791 | if (!(supported_params & DEVLINK_SUPPORT_FLASH_UPDATE_COMPONENT)) { | |
4792 | NL_SET_ERR_MSG_ATTR(info->extack, nla_component, | |
4793 | "component update is not supported by this device"); | |
4794 | return -EOPNOTSUPP; | |
4795 | } | |
bc75c054 | 4796 | params.component = nla_data(nla_component); |
22ec3d23 | 4797 | } |
76726ccb | 4798 | |
5d5b4128 JK |
4799 | nla_overwrite_mask = info->attrs[DEVLINK_ATTR_FLASH_UPDATE_OVERWRITE_MASK]; |
4800 | if (nla_overwrite_mask) { | |
4801 | struct nla_bitfield32 sections; | |
4802 | ||
4803 | if (!(supported_params & DEVLINK_SUPPORT_FLASH_UPDATE_OVERWRITE_MASK)) { | |
4804 | NL_SET_ERR_MSG_ATTR(info->extack, nla_overwrite_mask, | |
4805 | "overwrite settings are not supported by this device"); | |
4806 | return -EOPNOTSUPP; | |
4807 | } | |
4808 | sections = nla_get_bitfield32(nla_overwrite_mask); | |
4809 | params.overwrite_mask = sections.value & sections.selector; | |
4810 | } | |
4811 | ||
b44cfd4f JK |
4812 | nla_file_name = info->attrs[DEVLINK_ATTR_FLASH_UPDATE_FILE_NAME]; |
4813 | file_name = nla_data(nla_file_name); | |
4814 | ret = request_firmware(¶ms.fw, file_name, devlink->dev); | |
4815 | if (ret) { | |
4816 | NL_SET_ERR_MSG_ATTR(info->extack, nla_file_name, "failed to locate the requested firmware file"); | |
4817 | return ret; | |
4818 | } | |
4819 | ||
52cc5f3a | 4820 | devlink_flash_update_begin_notify(devlink); |
b44cfd4f | 4821 | ret = devlink->ops->flash_update(devlink, ¶ms, info->extack); |
52cc5f3a | 4822 | devlink_flash_update_end_notify(devlink); |
b44cfd4f JK |
4823 | |
4824 | release_firmware(params.fw); | |
4825 | ||
4826 | return ret; | |
76726ccb JK |
4827 | } |
4828 | ||
036467c3 MS |
4829 | static const struct devlink_param devlink_param_generic[] = { |
4830 | { | |
4831 | .id = DEVLINK_PARAM_GENERIC_ID_INT_ERR_RESET, | |
4832 | .name = DEVLINK_PARAM_GENERIC_INT_ERR_RESET_NAME, | |
4833 | .type = DEVLINK_PARAM_GENERIC_INT_ERR_RESET_TYPE, | |
4834 | }, | |
4835 | { | |
4836 | .id = DEVLINK_PARAM_GENERIC_ID_MAX_MACS, | |
4837 | .name = DEVLINK_PARAM_GENERIC_MAX_MACS_NAME, | |
4838 | .type = DEVLINK_PARAM_GENERIC_MAX_MACS_TYPE, | |
4839 | }, | |
f567bcda VV |
4840 | { |
4841 | .id = DEVLINK_PARAM_GENERIC_ID_ENABLE_SRIOV, | |
4842 | .name = DEVLINK_PARAM_GENERIC_ENABLE_SRIOV_NAME, | |
4843 | .type = DEVLINK_PARAM_GENERIC_ENABLE_SRIOV_TYPE, | |
4844 | }, | |
f6a69885 AV |
4845 | { |
4846 | .id = DEVLINK_PARAM_GENERIC_ID_REGION_SNAPSHOT, | |
4847 | .name = DEVLINK_PARAM_GENERIC_REGION_SNAPSHOT_NAME, | |
4848 | .type = DEVLINK_PARAM_GENERIC_REGION_SNAPSHOT_TYPE, | |
4849 | }, | |
e3b51061 VV |
4850 | { |
4851 | .id = DEVLINK_PARAM_GENERIC_ID_IGNORE_ARI, | |
4852 | .name = DEVLINK_PARAM_GENERIC_IGNORE_ARI_NAME, | |
4853 | .type = DEVLINK_PARAM_GENERIC_IGNORE_ARI_TYPE, | |
4854 | }, | |
f61cba42 VV |
4855 | { |
4856 | .id = DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MAX, | |
4857 | .name = DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MAX_NAME, | |
4858 | .type = DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MAX_TYPE, | |
4859 | }, | |
16511789 VV |
4860 | { |
4861 | .id = DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MIN, | |
4862 | .name = DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MIN_NAME, | |
4863 | .type = DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MIN_TYPE, | |
4864 | }, | |
846e980a ST |
4865 | { |
4866 | .id = DEVLINK_PARAM_GENERIC_ID_FW_LOAD_POLICY, | |
4867 | .name = DEVLINK_PARAM_GENERIC_FW_LOAD_POLICY_NAME, | |
4868 | .type = DEVLINK_PARAM_GENERIC_FW_LOAD_POLICY_TYPE, | |
4869 | }, | |
5bbd21df DM |
4870 | { |
4871 | .id = DEVLINK_PARAM_GENERIC_ID_RESET_DEV_ON_DRV_PROBE, | |
4872 | .name = DEVLINK_PARAM_GENERIC_RESET_DEV_ON_DRV_PROBE_NAME, | |
4873 | .type = DEVLINK_PARAM_GENERIC_RESET_DEV_ON_DRV_PROBE_TYPE, | |
4874 | }, | |
6c7295e1 MG |
4875 | { |
4876 | .id = DEVLINK_PARAM_GENERIC_ID_ENABLE_ROCE, | |
4877 | .name = DEVLINK_PARAM_GENERIC_ENABLE_ROCE_NAME, | |
4878 | .type = DEVLINK_PARAM_GENERIC_ENABLE_ROCE_TYPE, | |
4879 | }, | |
195d9dec MS |
4880 | { |
4881 | .id = DEVLINK_PARAM_GENERIC_ID_ENABLE_REMOTE_DEV_RESET, | |
4882 | .name = DEVLINK_PARAM_GENERIC_ENABLE_REMOTE_DEV_RESET_NAME, | |
4883 | .type = DEVLINK_PARAM_GENERIC_ENABLE_REMOTE_DEV_RESET_TYPE, | |
4884 | }, | |
f13a5ad8 PP |
4885 | { |
4886 | .id = DEVLINK_PARAM_GENERIC_ID_ENABLE_ETH, | |
4887 | .name = DEVLINK_PARAM_GENERIC_ENABLE_ETH_NAME, | |
4888 | .type = DEVLINK_PARAM_GENERIC_ENABLE_ETH_TYPE, | |
4889 | }, | |
8ddaabee PP |
4890 | { |
4891 | .id = DEVLINK_PARAM_GENERIC_ID_ENABLE_RDMA, | |
4892 | .name = DEVLINK_PARAM_GENERIC_ENABLE_RDMA_NAME, | |
4893 | .type = DEVLINK_PARAM_GENERIC_ENABLE_RDMA_TYPE, | |
4894 | }, | |
076b2a9d PP |
4895 | { |
4896 | .id = DEVLINK_PARAM_GENERIC_ID_ENABLE_VNET, | |
4897 | .name = DEVLINK_PARAM_GENERIC_ENABLE_VNET_NAME, | |
4898 | .type = DEVLINK_PARAM_GENERIC_ENABLE_VNET_TYPE, | |
4899 | }, | |
325e0d0a SS |
4900 | { |
4901 | .id = DEVLINK_PARAM_GENERIC_ID_ENABLE_IWARP, | |
4902 | .name = DEVLINK_PARAM_GENERIC_ENABLE_IWARP_NAME, | |
4903 | .type = DEVLINK_PARAM_GENERIC_ENABLE_IWARP_TYPE, | |
4904 | }, | |
47402385 SD |
4905 | { |
4906 | .id = DEVLINK_PARAM_GENERIC_ID_IO_EQ_SIZE, | |
4907 | .name = DEVLINK_PARAM_GENERIC_IO_EQ_SIZE_NAME, | |
4908 | .type = DEVLINK_PARAM_GENERIC_IO_EQ_SIZE_TYPE, | |
4909 | }, | |
0b5705eb SD |
4910 | { |
4911 | .id = DEVLINK_PARAM_GENERIC_ID_EVENT_EQ_SIZE, | |
4912 | .name = DEVLINK_PARAM_GENERIC_EVENT_EQ_SIZE_NAME, | |
4913 | .type = DEVLINK_PARAM_GENERIC_EVENT_EQ_SIZE_TYPE, | |
4914 | }, | |
036467c3 | 4915 | }; |
eabaef18 MS |
4916 | |
4917 | static int devlink_param_generic_verify(const struct devlink_param *param) | |
4918 | { | |
4919 | /* verify it match generic parameter by id and name */ | |
4920 | if (param->id > DEVLINK_PARAM_GENERIC_ID_MAX) | |
4921 | return -EINVAL; | |
4922 | if (strcmp(param->name, devlink_param_generic[param->id].name)) | |
4923 | return -ENOENT; | |
4924 | ||
4925 | WARN_ON(param->type != devlink_param_generic[param->id].type); | |
4926 | ||
4927 | return 0; | |
4928 | } | |
4929 | ||
4930 | static int devlink_param_driver_verify(const struct devlink_param *param) | |
4931 | { | |
4932 | int i; | |
4933 | ||
4934 | if (param->id <= DEVLINK_PARAM_GENERIC_ID_MAX) | |
4935 | return -EINVAL; | |
4936 | /* verify no such name in generic params */ | |
4937 | for (i = 0; i <= DEVLINK_PARAM_GENERIC_ID_MAX; i++) | |
4938 | if (!strcmp(param->name, devlink_param_generic[i].name)) | |
4939 | return -EEXIST; | |
4940 | ||
4941 | return 0; | |
4942 | } | |
4943 | ||
4944 | static struct devlink_param_item * | |
4945 | devlink_param_find_by_name(struct list_head *param_list, | |
4946 | const char *param_name) | |
4947 | { | |
4948 | struct devlink_param_item *param_item; | |
4949 | ||
4950 | list_for_each_entry(param_item, param_list, list) | |
4951 | if (!strcmp(param_item->param->name, param_name)) | |
4952 | return param_item; | |
4953 | return NULL; | |
4954 | } | |
4955 | ||
ec01aeb1 MS |
4956 | static struct devlink_param_item * |
4957 | devlink_param_find_by_id(struct list_head *param_list, u32 param_id) | |
4958 | { | |
4959 | struct devlink_param_item *param_item; | |
4960 | ||
4961 | list_for_each_entry(param_item, param_list, list) | |
4962 | if (param_item->param->id == param_id) | |
4963 | return param_item; | |
4964 | return NULL; | |
4965 | } | |
4966 | ||
45f05def MS |
4967 | static bool |
4968 | devlink_param_cmode_is_supported(const struct devlink_param *param, | |
4969 | enum devlink_param_cmode cmode) | |
4970 | { | |
4971 | return test_bit(cmode, ¶m->supported_cmodes); | |
4972 | } | |
4973 | ||
4974 | static int devlink_param_get(struct devlink *devlink, | |
4975 | const struct devlink_param *param, | |
4976 | struct devlink_param_gset_ctx *ctx) | |
4977 | { | |
4978 | if (!param->get) | |
4979 | return -EOPNOTSUPP; | |
4980 | return param->get(devlink, param->id, ctx); | |
4981 | } | |
4982 | ||
e3b7ca18 MS |
4983 | static int devlink_param_set(struct devlink *devlink, |
4984 | const struct devlink_param *param, | |
4985 | struct devlink_param_gset_ctx *ctx) | |
4986 | { | |
4987 | if (!param->set) | |
4988 | return -EOPNOTSUPP; | |
4989 | return param->set(devlink, param->id, ctx); | |
4990 | } | |
4991 | ||
45f05def MS |
4992 | static int |
4993 | devlink_param_type_to_nla_type(enum devlink_param_type param_type) | |
4994 | { | |
4995 | switch (param_type) { | |
4996 | case DEVLINK_PARAM_TYPE_U8: | |
4997 | return NLA_U8; | |
4998 | case DEVLINK_PARAM_TYPE_U16: | |
4999 | return NLA_U16; | |
5000 | case DEVLINK_PARAM_TYPE_U32: | |
5001 | return NLA_U32; | |
5002 | case DEVLINK_PARAM_TYPE_STRING: | |
5003 | return NLA_STRING; | |
5004 | case DEVLINK_PARAM_TYPE_BOOL: | |
5005 | return NLA_FLAG; | |
5006 | default: | |
5007 | return -EINVAL; | |
5008 | } | |
5009 | } | |
5010 | ||
5011 | static int | |
5012 | devlink_nl_param_value_fill_one(struct sk_buff *msg, | |
5013 | enum devlink_param_type type, | |
5014 | enum devlink_param_cmode cmode, | |
5015 | union devlink_param_value val) | |
5016 | { | |
5017 | struct nlattr *param_value_attr; | |
5018 | ||
ae0be8de MK |
5019 | param_value_attr = nla_nest_start_noflag(msg, |
5020 | DEVLINK_ATTR_PARAM_VALUE); | |
45f05def MS |
5021 | if (!param_value_attr) |
5022 | goto nla_put_failure; | |
5023 | ||
5024 | if (nla_put_u8(msg, DEVLINK_ATTR_PARAM_VALUE_CMODE, cmode)) | |
5025 | goto value_nest_cancel; | |
5026 | ||
5027 | switch (type) { | |
5028 | case DEVLINK_PARAM_TYPE_U8: | |
5029 | if (nla_put_u8(msg, DEVLINK_ATTR_PARAM_VALUE_DATA, val.vu8)) | |
5030 | goto value_nest_cancel; | |
5031 | break; | |
5032 | case DEVLINK_PARAM_TYPE_U16: | |
5033 | if (nla_put_u16(msg, DEVLINK_ATTR_PARAM_VALUE_DATA, val.vu16)) | |
5034 | goto value_nest_cancel; | |
5035 | break; | |
5036 | case DEVLINK_PARAM_TYPE_U32: | |
5037 | if (nla_put_u32(msg, DEVLINK_ATTR_PARAM_VALUE_DATA, val.vu32)) | |
5038 | goto value_nest_cancel; | |
5039 | break; | |
5040 | case DEVLINK_PARAM_TYPE_STRING: | |
5041 | if (nla_put_string(msg, DEVLINK_ATTR_PARAM_VALUE_DATA, | |
5042 | val.vstr)) | |
5043 | goto value_nest_cancel; | |
5044 | break; | |
5045 | case DEVLINK_PARAM_TYPE_BOOL: | |
5046 | if (val.vbool && | |
5047 | nla_put_flag(msg, DEVLINK_ATTR_PARAM_VALUE_DATA)) | |
5048 | goto value_nest_cancel; | |
5049 | break; | |
5050 | } | |
5051 | ||
5052 | nla_nest_end(msg, param_value_attr); | |
5053 | return 0; | |
5054 | ||
5055 | value_nest_cancel: | |
5056 | nla_nest_cancel(msg, param_value_attr); | |
5057 | nla_put_failure: | |
5058 | return -EMSGSIZE; | |
5059 | } | |
5060 | ||
5061 | static int devlink_nl_param_fill(struct sk_buff *msg, struct devlink *devlink, | |
f4601dee | 5062 | unsigned int port_index, |
45f05def MS |
5063 | struct devlink_param_item *param_item, |
5064 | enum devlink_command cmd, | |
5065 | u32 portid, u32 seq, int flags) | |
5066 | { | |
5067 | union devlink_param_value param_value[DEVLINK_PARAM_CMODE_MAX + 1]; | |
7c62cfb8 | 5068 | bool param_value_set[DEVLINK_PARAM_CMODE_MAX + 1] = {}; |
45f05def MS |
5069 | const struct devlink_param *param = param_item->param; |
5070 | struct devlink_param_gset_ctx ctx; | |
5071 | struct nlattr *param_values_list; | |
5072 | struct nlattr *param_attr; | |
5073 | int nla_type; | |
5074 | void *hdr; | |
5075 | int err; | |
5076 | int i; | |
5077 | ||
5078 | /* Get value from driver part to driverinit configuration mode */ | |
5079 | for (i = 0; i <= DEVLINK_PARAM_CMODE_MAX; i++) { | |
5080 | if (!devlink_param_cmode_is_supported(param, i)) | |
5081 | continue; | |
5082 | if (i == DEVLINK_PARAM_CMODE_DRIVERINIT) { | |
5083 | if (!param_item->driverinit_value_valid) | |
5084 | return -EOPNOTSUPP; | |
5085 | param_value[i] = param_item->driverinit_value; | |
5086 | } else { | |
5087 | ctx.cmode = i; | |
5088 | err = devlink_param_get(devlink, param, &ctx); | |
5089 | if (err) | |
5090 | return err; | |
5091 | param_value[i] = ctx.val; | |
5092 | } | |
7c62cfb8 | 5093 | param_value_set[i] = true; |
45f05def MS |
5094 | } |
5095 | ||
5096 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
5097 | if (!hdr) | |
5098 | return -EMSGSIZE; | |
5099 | ||
5100 | if (devlink_nl_put_handle(msg, devlink)) | |
5101 | goto genlmsg_cancel; | |
f4601dee | 5102 | |
c1e5786d VV |
5103 | if (cmd == DEVLINK_CMD_PORT_PARAM_GET || |
5104 | cmd == DEVLINK_CMD_PORT_PARAM_NEW || | |
5105 | cmd == DEVLINK_CMD_PORT_PARAM_DEL) | |
f4601dee VV |
5106 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, port_index)) |
5107 | goto genlmsg_cancel; | |
5108 | ||
ae0be8de | 5109 | param_attr = nla_nest_start_noflag(msg, DEVLINK_ATTR_PARAM); |
45f05def MS |
5110 | if (!param_attr) |
5111 | goto genlmsg_cancel; | |
5112 | if (nla_put_string(msg, DEVLINK_ATTR_PARAM_NAME, param->name)) | |
5113 | goto param_nest_cancel; | |
5114 | if (param->generic && nla_put_flag(msg, DEVLINK_ATTR_PARAM_GENERIC)) | |
5115 | goto param_nest_cancel; | |
5116 | ||
5117 | nla_type = devlink_param_type_to_nla_type(param->type); | |
5118 | if (nla_type < 0) | |
5119 | goto param_nest_cancel; | |
5120 | if (nla_put_u8(msg, DEVLINK_ATTR_PARAM_TYPE, nla_type)) | |
5121 | goto param_nest_cancel; | |
5122 | ||
ae0be8de MK |
5123 | param_values_list = nla_nest_start_noflag(msg, |
5124 | DEVLINK_ATTR_PARAM_VALUES_LIST); | |
45f05def MS |
5125 | if (!param_values_list) |
5126 | goto param_nest_cancel; | |
5127 | ||
5128 | for (i = 0; i <= DEVLINK_PARAM_CMODE_MAX; i++) { | |
7c62cfb8 | 5129 | if (!param_value_set[i]) |
45f05def MS |
5130 | continue; |
5131 | err = devlink_nl_param_value_fill_one(msg, param->type, | |
5132 | i, param_value[i]); | |
5133 | if (err) | |
5134 | goto values_list_nest_cancel; | |
5135 | } | |
5136 | ||
5137 | nla_nest_end(msg, param_values_list); | |
5138 | nla_nest_end(msg, param_attr); | |
5139 | genlmsg_end(msg, hdr); | |
5140 | return 0; | |
5141 | ||
5142 | values_list_nest_cancel: | |
5143 | nla_nest_end(msg, param_values_list); | |
5144 | param_nest_cancel: | |
5145 | nla_nest_cancel(msg, param_attr); | |
5146 | genlmsg_cancel: | |
5147 | genlmsg_cancel(msg, hdr); | |
5148 | return -EMSGSIZE; | |
5149 | } | |
5150 | ||
ea601e17 | 5151 | static void devlink_param_notify(struct devlink *devlink, |
c1e5786d | 5152 | unsigned int port_index, |
ea601e17 MS |
5153 | struct devlink_param_item *param_item, |
5154 | enum devlink_command cmd) | |
5155 | { | |
5156 | struct sk_buff *msg; | |
5157 | int err; | |
5158 | ||
c1e5786d VV |
5159 | WARN_ON(cmd != DEVLINK_CMD_PARAM_NEW && cmd != DEVLINK_CMD_PARAM_DEL && |
5160 | cmd != DEVLINK_CMD_PORT_PARAM_NEW && | |
5161 | cmd != DEVLINK_CMD_PORT_PARAM_DEL); | |
7a690ad4 | 5162 | ASSERT_DEVLINK_REGISTERED(devlink); |
ea601e17 MS |
5163 | |
5164 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
5165 | if (!msg) | |
5166 | return; | |
c1e5786d VV |
5167 | err = devlink_nl_param_fill(msg, devlink, port_index, param_item, cmd, |
5168 | 0, 0, 0); | |
ea601e17 MS |
5169 | if (err) { |
5170 | nlmsg_free(msg); | |
5171 | return; | |
5172 | } | |
5173 | ||
5174 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), | |
5175 | msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
5176 | } | |
5177 | ||
45f05def MS |
5178 | static int devlink_nl_cmd_param_get_dumpit(struct sk_buff *msg, |
5179 | struct netlink_callback *cb) | |
5180 | { | |
5181 | struct devlink_param_item *param_item; | |
5182 | struct devlink *devlink; | |
5183 | int start = cb->args[0]; | |
11a861d7 | 5184 | unsigned long index; |
45f05def | 5185 | int idx = 0; |
c62c2cfb | 5186 | int err = 0; |
45f05def MS |
5187 | |
5188 | mutex_lock(&devlink_mutex); | |
294c4f57 | 5189 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
7715023a | 5190 | devl_lock(devlink); |
45f05def MS |
5191 | list_for_each_entry(param_item, &devlink->param_list, list) { |
5192 | if (idx < start) { | |
5193 | idx++; | |
5194 | continue; | |
5195 | } | |
f4601dee | 5196 | err = devlink_nl_param_fill(msg, devlink, 0, param_item, |
45f05def MS |
5197 | DEVLINK_CMD_PARAM_GET, |
5198 | NETLINK_CB(cb->skb).portid, | |
5199 | cb->nlh->nlmsg_seq, | |
5200 | NLM_F_MULTI); | |
82274d07 JK |
5201 | if (err == -EOPNOTSUPP) { |
5202 | err = 0; | |
5203 | } else if (err) { | |
7715023a | 5204 | devl_unlock(devlink); |
437ebfd9 | 5205 | devlink_put(devlink); |
45f05def MS |
5206 | goto out; |
5207 | } | |
5208 | idx++; | |
5209 | } | |
7715023a | 5210 | devl_unlock(devlink); |
437ebfd9 | 5211 | devlink_put(devlink); |
45f05def MS |
5212 | } |
5213 | out: | |
5214 | mutex_unlock(&devlink_mutex); | |
5215 | ||
c62c2cfb JP |
5216 | if (err != -EMSGSIZE) |
5217 | return err; | |
5218 | ||
45f05def MS |
5219 | cb->args[0] = idx; |
5220 | return msg->len; | |
5221 | } | |
5222 | ||
e3b7ca18 MS |
5223 | static int |
5224 | devlink_param_type_get_from_info(struct genl_info *info, | |
5225 | enum devlink_param_type *param_type) | |
5226 | { | |
5227 | if (!info->attrs[DEVLINK_ATTR_PARAM_TYPE]) | |
5228 | return -EINVAL; | |
5229 | ||
5230 | switch (nla_get_u8(info->attrs[DEVLINK_ATTR_PARAM_TYPE])) { | |
5231 | case NLA_U8: | |
5232 | *param_type = DEVLINK_PARAM_TYPE_U8; | |
5233 | break; | |
5234 | case NLA_U16: | |
5235 | *param_type = DEVLINK_PARAM_TYPE_U16; | |
5236 | break; | |
5237 | case NLA_U32: | |
5238 | *param_type = DEVLINK_PARAM_TYPE_U32; | |
5239 | break; | |
5240 | case NLA_STRING: | |
5241 | *param_type = DEVLINK_PARAM_TYPE_STRING; | |
5242 | break; | |
5243 | case NLA_FLAG: | |
5244 | *param_type = DEVLINK_PARAM_TYPE_BOOL; | |
5245 | break; | |
5246 | default: | |
5247 | return -EINVAL; | |
5248 | } | |
5249 | ||
5250 | return 0; | |
5251 | } | |
5252 | ||
5253 | static int | |
5254 | devlink_param_value_get_from_info(const struct devlink_param *param, | |
5255 | struct genl_info *info, | |
5256 | union devlink_param_value *value) | |
5257 | { | |
8750939b | 5258 | struct nlattr *param_data; |
f355cfcd MS |
5259 | int len; |
5260 | ||
8750939b JK |
5261 | param_data = info->attrs[DEVLINK_ATTR_PARAM_VALUE_DATA]; |
5262 | ||
5263 | if (param->type != DEVLINK_PARAM_TYPE_BOOL && !param_data) | |
e3b7ca18 MS |
5264 | return -EINVAL; |
5265 | ||
5266 | switch (param->type) { | |
5267 | case DEVLINK_PARAM_TYPE_U8: | |
8750939b JK |
5268 | if (nla_len(param_data) != sizeof(u8)) |
5269 | return -EINVAL; | |
5270 | value->vu8 = nla_get_u8(param_data); | |
e3b7ca18 MS |
5271 | break; |
5272 | case DEVLINK_PARAM_TYPE_U16: | |
8750939b JK |
5273 | if (nla_len(param_data) != sizeof(u16)) |
5274 | return -EINVAL; | |
5275 | value->vu16 = nla_get_u16(param_data); | |
e3b7ca18 MS |
5276 | break; |
5277 | case DEVLINK_PARAM_TYPE_U32: | |
8750939b JK |
5278 | if (nla_len(param_data) != sizeof(u32)) |
5279 | return -EINVAL; | |
5280 | value->vu32 = nla_get_u32(param_data); | |
e3b7ca18 MS |
5281 | break; |
5282 | case DEVLINK_PARAM_TYPE_STRING: | |
8750939b JK |
5283 | len = strnlen(nla_data(param_data), nla_len(param_data)); |
5284 | if (len == nla_len(param_data) || | |
bde74ad1 | 5285 | len >= __DEVLINK_PARAM_MAX_STRING_VALUE) |
e3b7ca18 | 5286 | return -EINVAL; |
8750939b | 5287 | strcpy(value->vstr, nla_data(param_data)); |
e3b7ca18 MS |
5288 | break; |
5289 | case DEVLINK_PARAM_TYPE_BOOL: | |
8750939b JK |
5290 | if (param_data && nla_len(param_data)) |
5291 | return -EINVAL; | |
5292 | value->vbool = nla_get_flag(param_data); | |
e3b7ca18 MS |
5293 | break; |
5294 | } | |
5295 | return 0; | |
5296 | } | |
5297 | ||
45f05def | 5298 | static struct devlink_param_item * |
f4601dee | 5299 | devlink_param_get_from_info(struct list_head *param_list, |
45f05def MS |
5300 | struct genl_info *info) |
5301 | { | |
5302 | char *param_name; | |
5303 | ||
5304 | if (!info->attrs[DEVLINK_ATTR_PARAM_NAME]) | |
5305 | return NULL; | |
5306 | ||
5307 | param_name = nla_data(info->attrs[DEVLINK_ATTR_PARAM_NAME]); | |
f4601dee | 5308 | return devlink_param_find_by_name(param_list, param_name); |
45f05def MS |
5309 | } |
5310 | ||
5311 | static int devlink_nl_cmd_param_get_doit(struct sk_buff *skb, | |
5312 | struct genl_info *info) | |
5313 | { | |
5314 | struct devlink *devlink = info->user_ptr[0]; | |
5315 | struct devlink_param_item *param_item; | |
5316 | struct sk_buff *msg; | |
5317 | int err; | |
5318 | ||
f4601dee | 5319 | param_item = devlink_param_get_from_info(&devlink->param_list, info); |
45f05def MS |
5320 | if (!param_item) |
5321 | return -EINVAL; | |
5322 | ||
5323 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
5324 | if (!msg) | |
5325 | return -ENOMEM; | |
5326 | ||
f4601dee | 5327 | err = devlink_nl_param_fill(msg, devlink, 0, param_item, |
45f05def MS |
5328 | DEVLINK_CMD_PARAM_GET, |
5329 | info->snd_portid, info->snd_seq, 0); | |
5330 | if (err) { | |
5331 | nlmsg_free(msg); | |
5332 | return err; | |
5333 | } | |
5334 | ||
5335 | return genlmsg_reply(msg, info); | |
5336 | } | |
5337 | ||
9c54873b | 5338 | static int __devlink_nl_cmd_param_set_doit(struct devlink *devlink, |
c1e5786d | 5339 | unsigned int port_index, |
9c54873b VV |
5340 | struct list_head *param_list, |
5341 | struct genl_info *info, | |
5342 | enum devlink_command cmd) | |
e3b7ca18 | 5343 | { |
e3b7ca18 MS |
5344 | enum devlink_param_type param_type; |
5345 | struct devlink_param_gset_ctx ctx; | |
5346 | enum devlink_param_cmode cmode; | |
5347 | struct devlink_param_item *param_item; | |
5348 | const struct devlink_param *param; | |
5349 | union devlink_param_value value; | |
5350 | int err = 0; | |
5351 | ||
9c54873b | 5352 | param_item = devlink_param_get_from_info(param_list, info); |
e3b7ca18 MS |
5353 | if (!param_item) |
5354 | return -EINVAL; | |
5355 | param = param_item->param; | |
5356 | err = devlink_param_type_get_from_info(info, ¶m_type); | |
5357 | if (err) | |
5358 | return err; | |
5359 | if (param_type != param->type) | |
5360 | return -EINVAL; | |
5361 | err = devlink_param_value_get_from_info(param, info, &value); | |
5362 | if (err) | |
5363 | return err; | |
5364 | if (param->validate) { | |
5365 | err = param->validate(devlink, param->id, value, info->extack); | |
5366 | if (err) | |
5367 | return err; | |
5368 | } | |
5369 | ||
5370 | if (!info->attrs[DEVLINK_ATTR_PARAM_VALUE_CMODE]) | |
5371 | return -EINVAL; | |
5372 | cmode = nla_get_u8(info->attrs[DEVLINK_ATTR_PARAM_VALUE_CMODE]); | |
5373 | if (!devlink_param_cmode_is_supported(param, cmode)) | |
5374 | return -EOPNOTSUPP; | |
5375 | ||
5376 | if (cmode == DEVLINK_PARAM_CMODE_DRIVERINIT) { | |
1276534c MS |
5377 | if (param->type == DEVLINK_PARAM_TYPE_STRING) |
5378 | strcpy(param_item->driverinit_value.vstr, value.vstr); | |
5379 | else | |
5380 | param_item->driverinit_value = value; | |
e3b7ca18 MS |
5381 | param_item->driverinit_value_valid = true; |
5382 | } else { | |
5383 | if (!param->set) | |
5384 | return -EOPNOTSUPP; | |
5385 | ctx.val = value; | |
5386 | ctx.cmode = cmode; | |
5387 | err = devlink_param_set(devlink, param, &ctx); | |
5388 | if (err) | |
5389 | return err; | |
5390 | } | |
5391 | ||
c1e5786d | 5392 | devlink_param_notify(devlink, port_index, param_item, cmd); |
e3b7ca18 MS |
5393 | return 0; |
5394 | } | |
5395 | ||
9c54873b VV |
5396 | static int devlink_nl_cmd_param_set_doit(struct sk_buff *skb, |
5397 | struct genl_info *info) | |
5398 | { | |
5399 | struct devlink *devlink = info->user_ptr[0]; | |
5400 | ||
c1e5786d | 5401 | return __devlink_nl_cmd_param_set_doit(devlink, 0, &devlink->param_list, |
9c54873b VV |
5402 | info, DEVLINK_CMD_PARAM_NEW); |
5403 | } | |
5404 | ||
f4601dee VV |
5405 | static int devlink_nl_cmd_port_param_get_dumpit(struct sk_buff *msg, |
5406 | struct netlink_callback *cb) | |
5407 | { | |
5408 | struct devlink_param_item *param_item; | |
5409 | struct devlink_port *devlink_port; | |
5410 | struct devlink *devlink; | |
5411 | int start = cb->args[0]; | |
11a861d7 | 5412 | unsigned long index; |
f4601dee | 5413 | int idx = 0; |
c62c2cfb | 5414 | int err = 0; |
f4601dee VV |
5415 | |
5416 | mutex_lock(&devlink_mutex); | |
294c4f57 | 5417 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
7715023a | 5418 | devl_lock(devlink); |
f4601dee VV |
5419 | list_for_each_entry(devlink_port, &devlink->port_list, list) { |
5420 | list_for_each_entry(param_item, | |
5421 | &devlink_port->param_list, list) { | |
5422 | if (idx < start) { | |
5423 | idx++; | |
5424 | continue; | |
5425 | } | |
5426 | err = devlink_nl_param_fill(msg, | |
5427 | devlink_port->devlink, | |
5428 | devlink_port->index, param_item, | |
5429 | DEVLINK_CMD_PORT_PARAM_GET, | |
5430 | NETLINK_CB(cb->skb).portid, | |
5431 | cb->nlh->nlmsg_seq, | |
5432 | NLM_F_MULTI); | |
82274d07 JK |
5433 | if (err == -EOPNOTSUPP) { |
5434 | err = 0; | |
5435 | } else if (err) { | |
7715023a | 5436 | devl_unlock(devlink); |
437ebfd9 | 5437 | devlink_put(devlink); |
f4601dee VV |
5438 | goto out; |
5439 | } | |
5440 | idx++; | |
5441 | } | |
5442 | } | |
7715023a | 5443 | devl_unlock(devlink); |
437ebfd9 | 5444 | devlink_put(devlink); |
f4601dee VV |
5445 | } |
5446 | out: | |
5447 | mutex_unlock(&devlink_mutex); | |
5448 | ||
c62c2cfb JP |
5449 | if (err != -EMSGSIZE) |
5450 | return err; | |
5451 | ||
f4601dee VV |
5452 | cb->args[0] = idx; |
5453 | return msg->len; | |
5454 | } | |
5455 | ||
5456 | static int devlink_nl_cmd_port_param_get_doit(struct sk_buff *skb, | |
5457 | struct genl_info *info) | |
5458 | { | |
7e238de8 | 5459 | struct devlink_port *devlink_port = info->user_ptr[1]; |
f4601dee VV |
5460 | struct devlink_param_item *param_item; |
5461 | struct sk_buff *msg; | |
5462 | int err; | |
5463 | ||
5464 | param_item = devlink_param_get_from_info(&devlink_port->param_list, | |
5465 | info); | |
5466 | if (!param_item) | |
5467 | return -EINVAL; | |
5468 | ||
5469 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
5470 | if (!msg) | |
5471 | return -ENOMEM; | |
5472 | ||
5473 | err = devlink_nl_param_fill(msg, devlink_port->devlink, | |
5474 | devlink_port->index, param_item, | |
5475 | DEVLINK_CMD_PORT_PARAM_GET, | |
5476 | info->snd_portid, info->snd_seq, 0); | |
5477 | if (err) { | |
5478 | nlmsg_free(msg); | |
5479 | return err; | |
5480 | } | |
5481 | ||
5482 | return genlmsg_reply(msg, info); | |
5483 | } | |
5484 | ||
9c54873b VV |
5485 | static int devlink_nl_cmd_port_param_set_doit(struct sk_buff *skb, |
5486 | struct genl_info *info) | |
5487 | { | |
7e238de8 | 5488 | struct devlink_port *devlink_port = info->user_ptr[1]; |
9c54873b VV |
5489 | |
5490 | return __devlink_nl_cmd_param_set_doit(devlink_port->devlink, | |
c1e5786d VV |
5491 | devlink_port->index, |
5492 | &devlink_port->param_list, info, | |
5493 | DEVLINK_CMD_PORT_PARAM_NEW); | |
9c54873b VV |
5494 | } |
5495 | ||
a006d467 AV |
5496 | static int devlink_nl_region_snapshot_id_put(struct sk_buff *msg, |
5497 | struct devlink *devlink, | |
5498 | struct devlink_snapshot *snapshot) | |
5499 | { | |
5500 | struct nlattr *snap_attr; | |
5501 | int err; | |
5502 | ||
ae0be8de | 5503 | snap_attr = nla_nest_start_noflag(msg, DEVLINK_ATTR_REGION_SNAPSHOT); |
a006d467 AV |
5504 | if (!snap_attr) |
5505 | return -EINVAL; | |
5506 | ||
5507 | err = nla_put_u32(msg, DEVLINK_ATTR_REGION_SNAPSHOT_ID, snapshot->id); | |
5508 | if (err) | |
5509 | goto nla_put_failure; | |
5510 | ||
5511 | nla_nest_end(msg, snap_attr); | |
5512 | return 0; | |
5513 | ||
5514 | nla_put_failure: | |
5515 | nla_nest_cancel(msg, snap_attr); | |
5516 | return err; | |
5517 | } | |
5518 | ||
5519 | static int devlink_nl_region_snapshots_id_put(struct sk_buff *msg, | |
5520 | struct devlink *devlink, | |
5521 | struct devlink_region *region) | |
5522 | { | |
5523 | struct devlink_snapshot *snapshot; | |
5524 | struct nlattr *snapshots_attr; | |
5525 | int err; | |
5526 | ||
ae0be8de MK |
5527 | snapshots_attr = nla_nest_start_noflag(msg, |
5528 | DEVLINK_ATTR_REGION_SNAPSHOTS); | |
a006d467 AV |
5529 | if (!snapshots_attr) |
5530 | return -EINVAL; | |
5531 | ||
5532 | list_for_each_entry(snapshot, ®ion->snapshot_list, list) { | |
5533 | err = devlink_nl_region_snapshot_id_put(msg, devlink, snapshot); | |
5534 | if (err) | |
5535 | goto nla_put_failure; | |
5536 | } | |
5537 | ||
5538 | nla_nest_end(msg, snapshots_attr); | |
5539 | return 0; | |
5540 | ||
5541 | nla_put_failure: | |
5542 | nla_nest_cancel(msg, snapshots_attr); | |
5543 | return err; | |
5544 | } | |
5545 | ||
d8db7ea5 AV |
5546 | static int devlink_nl_region_fill(struct sk_buff *msg, struct devlink *devlink, |
5547 | enum devlink_command cmd, u32 portid, | |
5548 | u32 seq, int flags, | |
5549 | struct devlink_region *region) | |
5550 | { | |
5551 | void *hdr; | |
5552 | int err; | |
5553 | ||
5554 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
5555 | if (!hdr) | |
5556 | return -EMSGSIZE; | |
5557 | ||
5558 | err = devlink_nl_put_handle(msg, devlink); | |
5559 | if (err) | |
5560 | goto nla_put_failure; | |
5561 | ||
6c211809 DC |
5562 | if (region->port) { |
5563 | err = nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, | |
5564 | region->port->index); | |
5565 | if (err) | |
544e7c33 | 5566 | goto nla_put_failure; |
6c211809 | 5567 | } |
544e7c33 | 5568 | |
e8937681 | 5569 | err = nla_put_string(msg, DEVLINK_ATTR_REGION_NAME, region->ops->name); |
d8db7ea5 AV |
5570 | if (err) |
5571 | goto nla_put_failure; | |
5572 | ||
5573 | err = nla_put_u64_64bit(msg, DEVLINK_ATTR_REGION_SIZE, | |
5574 | region->size, | |
5575 | DEVLINK_ATTR_PAD); | |
5576 | if (err) | |
5577 | goto nla_put_failure; | |
5578 | ||
a70e3f02 JK |
5579 | err = nla_put_u32(msg, DEVLINK_ATTR_REGION_MAX_SNAPSHOTS, |
5580 | region->max_snapshots); | |
5581 | if (err) | |
5582 | goto nla_put_failure; | |
5583 | ||
a006d467 AV |
5584 | err = devlink_nl_region_snapshots_id_put(msg, devlink, region); |
5585 | if (err) | |
5586 | goto nla_put_failure; | |
5587 | ||
d8db7ea5 AV |
5588 | genlmsg_end(msg, hdr); |
5589 | return 0; | |
5590 | ||
5591 | nla_put_failure: | |
5592 | genlmsg_cancel(msg, hdr); | |
5593 | return err; | |
5594 | } | |
5595 | ||
dd86fec7 JK |
5596 | static struct sk_buff * |
5597 | devlink_nl_region_notify_build(struct devlink_region *region, | |
5598 | struct devlink_snapshot *snapshot, | |
5599 | enum devlink_command cmd, u32 portid, u32 seq) | |
866319bb AV |
5600 | { |
5601 | struct devlink *devlink = region->devlink; | |
5602 | struct sk_buff *msg; | |
5603 | void *hdr; | |
5604 | int err; | |
5605 | ||
866319bb AV |
5606 | |
5607 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
5608 | if (!msg) | |
dd86fec7 | 5609 | return ERR_PTR(-ENOMEM); |
866319bb | 5610 | |
dd86fec7 JK |
5611 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, 0, cmd); |
5612 | if (!hdr) { | |
5613 | err = -EMSGSIZE; | |
866319bb | 5614 | goto out_free_msg; |
dd86fec7 | 5615 | } |
866319bb AV |
5616 | |
5617 | err = devlink_nl_put_handle(msg, devlink); | |
5618 | if (err) | |
5619 | goto out_cancel_msg; | |
5620 | ||
6c211809 DC |
5621 | if (region->port) { |
5622 | err = nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, | |
5623 | region->port->index); | |
5624 | if (err) | |
544e7c33 | 5625 | goto out_cancel_msg; |
6c211809 | 5626 | } |
544e7c33 | 5627 | |
866319bb | 5628 | err = nla_put_string(msg, DEVLINK_ATTR_REGION_NAME, |
e8937681 | 5629 | region->ops->name); |
866319bb AV |
5630 | if (err) |
5631 | goto out_cancel_msg; | |
5632 | ||
5633 | if (snapshot) { | |
5634 | err = nla_put_u32(msg, DEVLINK_ATTR_REGION_SNAPSHOT_ID, | |
5635 | snapshot->id); | |
5636 | if (err) | |
5637 | goto out_cancel_msg; | |
5638 | } else { | |
5639 | err = nla_put_u64_64bit(msg, DEVLINK_ATTR_REGION_SIZE, | |
5640 | region->size, DEVLINK_ATTR_PAD); | |
5641 | if (err) | |
5642 | goto out_cancel_msg; | |
5643 | } | |
5644 | genlmsg_end(msg, hdr); | |
5645 | ||
dd86fec7 | 5646 | return msg; |
866319bb AV |
5647 | |
5648 | out_cancel_msg: | |
5649 | genlmsg_cancel(msg, hdr); | |
5650 | out_free_msg: | |
5651 | nlmsg_free(msg); | |
dd86fec7 JK |
5652 | return ERR_PTR(err); |
5653 | } | |
5654 | ||
5655 | static void devlink_nl_region_notify(struct devlink_region *region, | |
5656 | struct devlink_snapshot *snapshot, | |
5657 | enum devlink_command cmd) | |
5658 | { | |
cf530217 | 5659 | struct devlink *devlink = region->devlink; |
dd86fec7 JK |
5660 | struct sk_buff *msg; |
5661 | ||
5662 | WARN_ON(cmd != DEVLINK_CMD_REGION_NEW && cmd != DEVLINK_CMD_REGION_DEL); | |
ef91abfb LR |
5663 | if (!xa_get_mark(&devlinks, devlink->index, DEVLINK_REGISTERED)) |
5664 | return; | |
dd86fec7 JK |
5665 | |
5666 | msg = devlink_nl_region_notify_build(region, snapshot, cmd, 0, 0); | |
5667 | if (IS_ERR(msg)) | |
5668 | return; | |
5669 | ||
cf530217 LR |
5670 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), msg, |
5671 | 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
866319bb AV |
5672 | } |
5673 | ||
12102436 JK |
5674 | /** |
5675 | * __devlink_snapshot_id_increment - Increment number of snapshots using an id | |
5676 | * @devlink: devlink instance | |
5677 | * @id: the snapshot id | |
5678 | * | |
5679 | * Track when a new snapshot begins using an id. Load the count for the | |
5680 | * given id from the snapshot xarray, increment it, and store it back. | |
5681 | * | |
5682 | * Called when a new snapshot is created with the given id. | |
5683 | * | |
5684 | * The id *must* have been previously allocated by | |
5685 | * devlink_region_snapshot_id_get(). | |
5686 | * | |
5687 | * Returns 0 on success, or an error on failure. | |
5688 | */ | |
5689 | static int __devlink_snapshot_id_increment(struct devlink *devlink, u32 id) | |
5690 | { | |
5691 | unsigned long count; | |
5692 | void *p; | |
5693 | ||
7715023a | 5694 | devl_assert_locked(devlink); |
12102436 JK |
5695 | |
5696 | p = xa_load(&devlink->snapshot_ids, id); | |
5697 | if (WARN_ON(!p)) | |
5698 | return -EINVAL; | |
5699 | ||
5700 | if (WARN_ON(!xa_is_value(p))) | |
5701 | return -EINVAL; | |
5702 | ||
5703 | count = xa_to_value(p); | |
5704 | count++; | |
5705 | ||
5706 | return xa_err(xa_store(&devlink->snapshot_ids, id, xa_mk_value(count), | |
5707 | GFP_KERNEL)); | |
5708 | } | |
5709 | ||
5710 | /** | |
5711 | * __devlink_snapshot_id_decrement - Decrease number of snapshots using an id | |
5712 | * @devlink: devlink instance | |
5713 | * @id: the snapshot id | |
5714 | * | |
5715 | * Track when a snapshot is deleted and stops using an id. Load the count | |
5716 | * for the given id from the snapshot xarray, decrement it, and store it | |
5717 | * back. | |
5718 | * | |
5719 | * If the count reaches zero, erase this id from the xarray, freeing it | |
5720 | * up for future re-use by devlink_region_snapshot_id_get(). | |
5721 | * | |
5722 | * Called when a snapshot using the given id is deleted, and when the | |
5723 | * initial allocator of the id is finished using it. | |
5724 | */ | |
5725 | static void __devlink_snapshot_id_decrement(struct devlink *devlink, u32 id) | |
5726 | { | |
5727 | unsigned long count; | |
5728 | void *p; | |
5729 | ||
7715023a | 5730 | devl_assert_locked(devlink); |
12102436 JK |
5731 | |
5732 | p = xa_load(&devlink->snapshot_ids, id); | |
5733 | if (WARN_ON(!p)) | |
5734 | return; | |
5735 | ||
5736 | if (WARN_ON(!xa_is_value(p))) | |
5737 | return; | |
5738 | ||
5739 | count = xa_to_value(p); | |
5740 | ||
5741 | if (count > 1) { | |
5742 | count--; | |
5743 | xa_store(&devlink->snapshot_ids, id, xa_mk_value(count), | |
5744 | GFP_KERNEL); | |
5745 | } else { | |
5746 | /* If this was the last user, we can erase this id */ | |
5747 | xa_erase(&devlink->snapshot_ids, id); | |
5748 | } | |
5749 | } | |
5750 | ||
b9a17abf JK |
5751 | /** |
5752 | * __devlink_snapshot_id_insert - Insert a specific snapshot ID | |
5753 | * @devlink: devlink instance | |
5754 | * @id: the snapshot id | |
5755 | * | |
5756 | * Mark the given snapshot id as used by inserting a zero value into the | |
5757 | * snapshot xarray. | |
5758 | * | |
5759 | * This must be called while holding the devlink instance lock. Unlike | |
5760 | * devlink_snapshot_id_get, the initial reference count is zero, not one. | |
5761 | * It is expected that the id will immediately be used before | |
5762 | * releasing the devlink instance lock. | |
5763 | * | |
5764 | * Returns zero on success, or an error code if the snapshot id could not | |
5765 | * be inserted. | |
5766 | */ | |
5767 | static int __devlink_snapshot_id_insert(struct devlink *devlink, u32 id) | |
5768 | { | |
7715023a | 5769 | devl_assert_locked(devlink); |
b9a17abf | 5770 | |
bd71ea60 | 5771 | if (xa_load(&devlink->snapshot_ids, id)) |
b9a17abf JK |
5772 | return -EEXIST; |
5773 | ||
5774 | return xa_err(xa_store(&devlink->snapshot_ids, id, xa_mk_value(0), | |
5775 | GFP_KERNEL)); | |
5776 | } | |
5777 | ||
7000108f JK |
5778 | /** |
5779 | * __devlink_region_snapshot_id_get - get snapshot ID | |
5780 | * @devlink: devlink instance | |
7ef19d3b | 5781 | * @id: storage to return snapshot id |
7000108f | 5782 | * |
7ef19d3b JK |
5783 | * Allocates a new snapshot id. Returns zero on success, or a negative |
5784 | * error on failure. Must be called while holding the devlink instance | |
5785 | * lock. | |
12102436 JK |
5786 | * |
5787 | * Snapshot IDs are tracked using an xarray which stores the number of | |
5788 | * users of the snapshot id. | |
5789 | * | |
5790 | * Note that the caller of this function counts as a 'user', in order to | |
5791 | * avoid race conditions. The caller must release its hold on the | |
5792 | * snapshot by using devlink_region_snapshot_id_put. | |
7000108f | 5793 | */ |
7ef19d3b | 5794 | static int __devlink_region_snapshot_id_get(struct devlink *devlink, u32 *id) |
7000108f | 5795 | { |
7715023a | 5796 | devl_assert_locked(devlink); |
7ef19d3b | 5797 | |
12102436 JK |
5798 | return xa_alloc(&devlink->snapshot_ids, id, xa_mk_value(1), |
5799 | xa_limit_32b, GFP_KERNEL); | |
7000108f JK |
5800 | } |
5801 | ||
cf80faee JK |
5802 | /** |
5803 | * __devlink_region_snapshot_create - create a new snapshot | |
5804 | * This will add a new snapshot of a region. The snapshot | |
5805 | * will be stored on the region struct and can be accessed | |
5806 | * from devlink. This is useful for future analyses of snapshots. | |
5807 | * Multiple snapshots can be created on a region. | |
5808 | * The @snapshot_id should be obtained using the getter function. | |
5809 | * | |
5810 | * Must be called only while holding the devlink instance lock. | |
5811 | * | |
5812 | * @region: devlink region of the snapshot | |
5813 | * @data: snapshot data | |
5814 | * @snapshot_id: snapshot id to be created | |
5815 | */ | |
5816 | static int | |
5817 | __devlink_region_snapshot_create(struct devlink_region *region, | |
5818 | u8 *data, u32 snapshot_id) | |
5819 | { | |
5820 | struct devlink *devlink = region->devlink; | |
5821 | struct devlink_snapshot *snapshot; | |
12102436 | 5822 | int err; |
cf80faee | 5823 | |
7715023a | 5824 | devl_assert_locked(devlink); |
cf80faee JK |
5825 | |
5826 | /* check if region can hold one more snapshot */ | |
5827 | if (region->cur_snapshots == region->max_snapshots) | |
47a39f61 | 5828 | return -ENOSPC; |
cf80faee JK |
5829 | |
5830 | if (devlink_region_snapshot_get_by_id(region, snapshot_id)) | |
5831 | return -EEXIST; | |
5832 | ||
5833 | snapshot = kzalloc(sizeof(*snapshot), GFP_KERNEL); | |
5834 | if (!snapshot) | |
5835 | return -ENOMEM; | |
5836 | ||
12102436 JK |
5837 | err = __devlink_snapshot_id_increment(devlink, snapshot_id); |
5838 | if (err) | |
5839 | goto err_snapshot_id_increment; | |
5840 | ||
cf80faee JK |
5841 | snapshot->id = snapshot_id; |
5842 | snapshot->region = region; | |
5843 | snapshot->data = data; | |
5844 | ||
5845 | list_add_tail(&snapshot->list, ®ion->snapshot_list); | |
5846 | ||
5847 | region->cur_snapshots++; | |
5848 | ||
5849 | devlink_nl_region_notify(region, snapshot, DEVLINK_CMD_REGION_NEW); | |
5850 | return 0; | |
12102436 JK |
5851 | |
5852 | err_snapshot_id_increment: | |
5853 | kfree(snapshot); | |
5854 | return err; | |
cf80faee JK |
5855 | } |
5856 | ||
92b49822 JP |
5857 | static void devlink_region_snapshot_del(struct devlink_region *region, |
5858 | struct devlink_snapshot *snapshot) | |
5859 | { | |
12102436 JK |
5860 | struct devlink *devlink = region->devlink; |
5861 | ||
7715023a | 5862 | devl_assert_locked(devlink); |
12102436 | 5863 | |
92b49822 JP |
5864 | devlink_nl_region_notify(region, snapshot, DEVLINK_CMD_REGION_DEL); |
5865 | region->cur_snapshots--; | |
5866 | list_del(&snapshot->list); | |
a0a09f6b | 5867 | region->ops->destructor(snapshot->data); |
12102436 | 5868 | __devlink_snapshot_id_decrement(devlink, snapshot->id); |
92b49822 JP |
5869 | kfree(snapshot); |
5870 | } | |
5871 | ||
d8db7ea5 AV |
5872 | static int devlink_nl_cmd_region_get_doit(struct sk_buff *skb, |
5873 | struct genl_info *info) | |
5874 | { | |
5875 | struct devlink *devlink = info->user_ptr[0]; | |
544e7c33 | 5876 | struct devlink_port *port = NULL; |
d8db7ea5 AV |
5877 | struct devlink_region *region; |
5878 | const char *region_name; | |
5879 | struct sk_buff *msg; | |
544e7c33 | 5880 | unsigned int index; |
d8db7ea5 AV |
5881 | int err; |
5882 | ||
5883 | if (!info->attrs[DEVLINK_ATTR_REGION_NAME]) | |
5884 | return -EINVAL; | |
5885 | ||
544e7c33 AL |
5886 | if (info->attrs[DEVLINK_ATTR_PORT_INDEX]) { |
5887 | index = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_INDEX]); | |
5888 | ||
5889 | port = devlink_port_get_by_index(devlink, index); | |
5890 | if (!port) | |
5891 | return -ENODEV; | |
5892 | } | |
5893 | ||
d8db7ea5 | 5894 | region_name = nla_data(info->attrs[DEVLINK_ATTR_REGION_NAME]); |
544e7c33 AL |
5895 | if (port) |
5896 | region = devlink_port_region_get_by_name(port, region_name); | |
5897 | else | |
5898 | region = devlink_region_get_by_name(devlink, region_name); | |
5899 | ||
d8db7ea5 AV |
5900 | if (!region) |
5901 | return -EINVAL; | |
5902 | ||
5903 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
5904 | if (!msg) | |
5905 | return -ENOMEM; | |
5906 | ||
5907 | err = devlink_nl_region_fill(msg, devlink, DEVLINK_CMD_REGION_GET, | |
5908 | info->snd_portid, info->snd_seq, 0, | |
5909 | region); | |
5910 | if (err) { | |
5911 | nlmsg_free(msg); | |
5912 | return err; | |
5913 | } | |
5914 | ||
5915 | return genlmsg_reply(msg, info); | |
5916 | } | |
5917 | ||
544e7c33 AL |
5918 | static int devlink_nl_cmd_region_get_port_dumpit(struct sk_buff *msg, |
5919 | struct netlink_callback *cb, | |
5920 | struct devlink_port *port, | |
5921 | int *idx, | |
5922 | int start) | |
5923 | { | |
5924 | struct devlink_region *region; | |
5925 | int err = 0; | |
5926 | ||
5927 | list_for_each_entry(region, &port->region_list, list) { | |
5928 | if (*idx < start) { | |
5929 | (*idx)++; | |
5930 | continue; | |
5931 | } | |
5932 | err = devlink_nl_region_fill(msg, port->devlink, | |
5933 | DEVLINK_CMD_REGION_GET, | |
5934 | NETLINK_CB(cb->skb).portid, | |
5935 | cb->nlh->nlmsg_seq, | |
5936 | NLM_F_MULTI, region); | |
5937 | if (err) | |
5938 | goto out; | |
5939 | (*idx)++; | |
5940 | } | |
5941 | ||
5942 | out: | |
5943 | return err; | |
5944 | } | |
5945 | ||
5946 | static int devlink_nl_cmd_region_get_devlink_dumpit(struct sk_buff *msg, | |
5947 | struct netlink_callback *cb, | |
5948 | struct devlink *devlink, | |
5949 | int *idx, | |
5950 | int start) | |
5951 | { | |
5952 | struct devlink_region *region; | |
5953 | struct devlink_port *port; | |
5954 | int err = 0; | |
5955 | ||
7715023a | 5956 | devl_lock(devlink); |
544e7c33 AL |
5957 | list_for_each_entry(region, &devlink->region_list, list) { |
5958 | if (*idx < start) { | |
5959 | (*idx)++; | |
5960 | continue; | |
5961 | } | |
5962 | err = devlink_nl_region_fill(msg, devlink, | |
5963 | DEVLINK_CMD_REGION_GET, | |
5964 | NETLINK_CB(cb->skb).portid, | |
5965 | cb->nlh->nlmsg_seq, | |
5966 | NLM_F_MULTI, region); | |
5967 | if (err) | |
5968 | goto out; | |
5969 | (*idx)++; | |
5970 | } | |
5971 | ||
5972 | list_for_each_entry(port, &devlink->port_list, list) { | |
5973 | err = devlink_nl_cmd_region_get_port_dumpit(msg, cb, port, idx, | |
5974 | start); | |
5975 | if (err) | |
5976 | goto out; | |
5977 | } | |
5978 | ||
5979 | out: | |
7715023a | 5980 | devl_unlock(devlink); |
544e7c33 AL |
5981 | return err; |
5982 | } | |
5983 | ||
d8db7ea5 AV |
5984 | static int devlink_nl_cmd_region_get_dumpit(struct sk_buff *msg, |
5985 | struct netlink_callback *cb) | |
5986 | { | |
d8db7ea5 AV |
5987 | struct devlink *devlink; |
5988 | int start = cb->args[0]; | |
11a861d7 | 5989 | unsigned long index; |
d8db7ea5 | 5990 | int idx = 0; |
437ebfd9 | 5991 | int err = 0; |
d8db7ea5 AV |
5992 | |
5993 | mutex_lock(&devlink_mutex); | |
294c4f57 | 5994 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
544e7c33 AL |
5995 | err = devlink_nl_cmd_region_get_devlink_dumpit(msg, cb, devlink, |
5996 | &idx, start); | |
437ebfd9 | 5997 | devlink_put(devlink); |
544e7c33 AL |
5998 | if (err) |
5999 | goto out; | |
d8db7ea5 AV |
6000 | } |
6001 | out: | |
6002 | mutex_unlock(&devlink_mutex); | |
6003 | cb->args[0] = idx; | |
6004 | return msg->len; | |
6005 | } | |
6006 | ||
866319bb AV |
6007 | static int devlink_nl_cmd_region_del(struct sk_buff *skb, |
6008 | struct genl_info *info) | |
6009 | { | |
6010 | struct devlink *devlink = info->user_ptr[0]; | |
6011 | struct devlink_snapshot *snapshot; | |
544e7c33 | 6012 | struct devlink_port *port = NULL; |
866319bb AV |
6013 | struct devlink_region *region; |
6014 | const char *region_name; | |
544e7c33 | 6015 | unsigned int index; |
866319bb AV |
6016 | u32 snapshot_id; |
6017 | ||
6018 | if (!info->attrs[DEVLINK_ATTR_REGION_NAME] || | |
6019 | !info->attrs[DEVLINK_ATTR_REGION_SNAPSHOT_ID]) | |
6020 | return -EINVAL; | |
6021 | ||
6022 | region_name = nla_data(info->attrs[DEVLINK_ATTR_REGION_NAME]); | |
6023 | snapshot_id = nla_get_u32(info->attrs[DEVLINK_ATTR_REGION_SNAPSHOT_ID]); | |
6024 | ||
544e7c33 AL |
6025 | if (info->attrs[DEVLINK_ATTR_PORT_INDEX]) { |
6026 | index = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_INDEX]); | |
6027 | ||
6028 | port = devlink_port_get_by_index(devlink, index); | |
6029 | if (!port) | |
6030 | return -ENODEV; | |
6031 | } | |
6032 | ||
6033 | if (port) | |
6034 | region = devlink_port_region_get_by_name(port, region_name); | |
6035 | else | |
6036 | region = devlink_region_get_by_name(devlink, region_name); | |
6037 | ||
866319bb AV |
6038 | if (!region) |
6039 | return -EINVAL; | |
6040 | ||
6041 | snapshot = devlink_region_snapshot_get_by_id(region, snapshot_id); | |
6042 | if (!snapshot) | |
6043 | return -EINVAL; | |
6044 | ||
92b49822 | 6045 | devlink_region_snapshot_del(region, snapshot); |
866319bb AV |
6046 | return 0; |
6047 | } | |
6048 | ||
b9a17abf JK |
6049 | static int |
6050 | devlink_nl_cmd_region_new(struct sk_buff *skb, struct genl_info *info) | |
6051 | { | |
6052 | struct devlink *devlink = info->user_ptr[0]; | |
043b3e22 | 6053 | struct devlink_snapshot *snapshot; |
544e7c33 | 6054 | struct devlink_port *port = NULL; |
043b3e22 | 6055 | struct nlattr *snapshot_id_attr; |
b9a17abf JK |
6056 | struct devlink_region *region; |
6057 | const char *region_name; | |
544e7c33 | 6058 | unsigned int index; |
b9a17abf JK |
6059 | u32 snapshot_id; |
6060 | u8 *data; | |
6061 | int err; | |
6062 | ||
6063 | if (!info->attrs[DEVLINK_ATTR_REGION_NAME]) { | |
6064 | NL_SET_ERR_MSG_MOD(info->extack, "No region name provided"); | |
6065 | return -EINVAL; | |
6066 | } | |
6067 | ||
b9a17abf | 6068 | region_name = nla_data(info->attrs[DEVLINK_ATTR_REGION_NAME]); |
544e7c33 AL |
6069 | |
6070 | if (info->attrs[DEVLINK_ATTR_PORT_INDEX]) { | |
6071 | index = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_INDEX]); | |
6072 | ||
6073 | port = devlink_port_get_by_index(devlink, index); | |
6074 | if (!port) | |
6075 | return -ENODEV; | |
6076 | } | |
6077 | ||
6078 | if (port) | |
6079 | region = devlink_port_region_get_by_name(port, region_name); | |
6080 | else | |
6081 | region = devlink_region_get_by_name(devlink, region_name); | |
6082 | ||
b9a17abf JK |
6083 | if (!region) { |
6084 | NL_SET_ERR_MSG_MOD(info->extack, "The requested region does not exist"); | |
6085 | return -EINVAL; | |
6086 | } | |
6087 | ||
6088 | if (!region->ops->snapshot) { | |
6089 | NL_SET_ERR_MSG_MOD(info->extack, "The requested region does not support taking an immediate snapshot"); | |
6090 | return -EOPNOTSUPP; | |
6091 | } | |
6092 | ||
6093 | if (region->cur_snapshots == region->max_snapshots) { | |
6094 | NL_SET_ERR_MSG_MOD(info->extack, "The region has reached the maximum number of stored snapshots"); | |
6095 | return -ENOSPC; | |
6096 | } | |
6097 | ||
043b3e22 JK |
6098 | snapshot_id_attr = info->attrs[DEVLINK_ATTR_REGION_SNAPSHOT_ID]; |
6099 | if (snapshot_id_attr) { | |
6100 | snapshot_id = nla_get_u32(snapshot_id_attr); | |
b9a17abf | 6101 | |
043b3e22 JK |
6102 | if (devlink_region_snapshot_get_by_id(region, snapshot_id)) { |
6103 | NL_SET_ERR_MSG_MOD(info->extack, "The requested snapshot id is already in use"); | |
6104 | return -EEXIST; | |
6105 | } | |
b9a17abf | 6106 | |
043b3e22 JK |
6107 | err = __devlink_snapshot_id_insert(devlink, snapshot_id); |
6108 | if (err) | |
6109 | return err; | |
6110 | } else { | |
6111 | err = __devlink_region_snapshot_id_get(devlink, &snapshot_id); | |
6112 | if (err) { | |
6113 | NL_SET_ERR_MSG_MOD(info->extack, "Failed to allocate a new snapshot id"); | |
6114 | return err; | |
6115 | } | |
6116 | } | |
b9a17abf | 6117 | |
544e7c33 AL |
6118 | if (port) |
6119 | err = region->port_ops->snapshot(port, region->port_ops, | |
6120 | info->extack, &data); | |
6121 | else | |
6122 | err = region->ops->snapshot(devlink, region->ops, | |
6123 | info->extack, &data); | |
b9a17abf JK |
6124 | if (err) |
6125 | goto err_snapshot_capture; | |
6126 | ||
6127 | err = __devlink_region_snapshot_create(region, data, snapshot_id); | |
6128 | if (err) | |
6129 | goto err_snapshot_create; | |
6130 | ||
043b3e22 JK |
6131 | if (!snapshot_id_attr) { |
6132 | struct sk_buff *msg; | |
6133 | ||
6134 | snapshot = devlink_region_snapshot_get_by_id(region, | |
6135 | snapshot_id); | |
6136 | if (WARN_ON(!snapshot)) | |
6137 | return -EINVAL; | |
6138 | ||
6139 | msg = devlink_nl_region_notify_build(region, snapshot, | |
6140 | DEVLINK_CMD_REGION_NEW, | |
6141 | info->snd_portid, | |
6142 | info->snd_seq); | |
6143 | err = PTR_ERR_OR_ZERO(msg); | |
6144 | if (err) | |
6145 | goto err_notify; | |
6146 | ||
6147 | err = genlmsg_reply(msg, info); | |
6148 | if (err) | |
6149 | goto err_notify; | |
6150 | } | |
6151 | ||
b9a17abf JK |
6152 | return 0; |
6153 | ||
6154 | err_snapshot_create: | |
6155 | region->ops->destructor(data); | |
6156 | err_snapshot_capture: | |
6157 | __devlink_snapshot_id_decrement(devlink, snapshot_id); | |
6158 | return err; | |
043b3e22 JK |
6159 | |
6160 | err_notify: | |
6161 | devlink_region_snapshot_del(region, snapshot); | |
6162 | return err; | |
b9a17abf JK |
6163 | } |
6164 | ||
4e54795a AV |
6165 | static int devlink_nl_cmd_region_read_chunk_fill(struct sk_buff *msg, |
6166 | struct devlink *devlink, | |
6167 | u8 *chunk, u32 chunk_size, | |
6168 | u64 addr) | |
6169 | { | |
6170 | struct nlattr *chunk_attr; | |
6171 | int err; | |
6172 | ||
ae0be8de | 6173 | chunk_attr = nla_nest_start_noflag(msg, DEVLINK_ATTR_REGION_CHUNK); |
4e54795a AV |
6174 | if (!chunk_attr) |
6175 | return -EINVAL; | |
6176 | ||
6177 | err = nla_put(msg, DEVLINK_ATTR_REGION_CHUNK_DATA, chunk_size, chunk); | |
6178 | if (err) | |
6179 | goto nla_put_failure; | |
6180 | ||
6181 | err = nla_put_u64_64bit(msg, DEVLINK_ATTR_REGION_CHUNK_ADDR, addr, | |
6182 | DEVLINK_ATTR_PAD); | |
6183 | if (err) | |
6184 | goto nla_put_failure; | |
6185 | ||
6186 | nla_nest_end(msg, chunk_attr); | |
6187 | return 0; | |
6188 | ||
6189 | nla_put_failure: | |
6190 | nla_nest_cancel(msg, chunk_attr); | |
6191 | return err; | |
6192 | } | |
6193 | ||
6194 | #define DEVLINK_REGION_READ_CHUNK_SIZE 256 | |
6195 | ||
6196 | static int devlink_nl_region_read_snapshot_fill(struct sk_buff *skb, | |
6197 | struct devlink *devlink, | |
6198 | struct devlink_region *region, | |
6199 | struct nlattr **attrs, | |
6200 | u64 start_offset, | |
6201 | u64 end_offset, | |
4e54795a AV |
6202 | u64 *new_offset) |
6203 | { | |
6204 | struct devlink_snapshot *snapshot; | |
6205 | u64 curr_offset = start_offset; | |
6206 | u32 snapshot_id; | |
6207 | int err = 0; | |
6208 | ||
6209 | *new_offset = start_offset; | |
6210 | ||
6211 | snapshot_id = nla_get_u32(attrs[DEVLINK_ATTR_REGION_SNAPSHOT_ID]); | |
6212 | snapshot = devlink_region_snapshot_get_by_id(region, snapshot_id); | |
6213 | if (!snapshot) | |
6214 | return -EINVAL; | |
6215 | ||
4e54795a AV |
6216 | while (curr_offset < end_offset) { |
6217 | u32 data_size; | |
6218 | u8 *data; | |
6219 | ||
6220 | if (end_offset - curr_offset < DEVLINK_REGION_READ_CHUNK_SIZE) | |
6221 | data_size = end_offset - curr_offset; | |
6222 | else | |
6223 | data_size = DEVLINK_REGION_READ_CHUNK_SIZE; | |
6224 | ||
6225 | data = &snapshot->data[curr_offset]; | |
6226 | err = devlink_nl_cmd_region_read_chunk_fill(skb, devlink, | |
6227 | data, data_size, | |
6228 | curr_offset); | |
6229 | if (err) | |
6230 | break; | |
6231 | ||
6232 | curr_offset += data_size; | |
6233 | } | |
6234 | *new_offset = curr_offset; | |
6235 | ||
6236 | return err; | |
6237 | } | |
6238 | ||
6239 | static int devlink_nl_cmd_region_read_dumpit(struct sk_buff *skb, | |
6240 | struct netlink_callback *cb) | |
6241 | { | |
ee85da53 | 6242 | const struct genl_dumpit_info *info = genl_dumpit_info(cb); |
5a46b062 | 6243 | u64 ret_offset, start_offset, end_offset = U64_MAX; |
ee85da53 | 6244 | struct nlattr **attrs = info->attrs; |
544e7c33 | 6245 | struct devlink_port *port = NULL; |
4e54795a AV |
6246 | struct devlink_region *region; |
6247 | struct nlattr *chunks_attr; | |
6248 | const char *region_name; | |
6249 | struct devlink *devlink; | |
544e7c33 | 6250 | unsigned int index; |
4e54795a AV |
6251 | void *hdr; |
6252 | int err; | |
6253 | ||
6254 | start_offset = *((u64 *)&cb->args[0]); | |
6255 | ||
dac7c08f | 6256 | mutex_lock(&devlink_mutex); |
4e54795a | 6257 | devlink = devlink_get_from_attrs(sock_net(cb->skb->sk), attrs); |
fdd41ec2 PP |
6258 | if (IS_ERR(devlink)) { |
6259 | err = PTR_ERR(devlink); | |
dac7c08f | 6260 | goto out_dev; |
fdd41ec2 | 6261 | } |
4e54795a | 6262 | |
7715023a | 6263 | devl_lock(devlink); |
4e54795a AV |
6264 | |
6265 | if (!attrs[DEVLINK_ATTR_REGION_NAME] || | |
fdd41ec2 PP |
6266 | !attrs[DEVLINK_ATTR_REGION_SNAPSHOT_ID]) { |
6267 | err = -EINVAL; | |
4e54795a | 6268 | goto out_unlock; |
fdd41ec2 | 6269 | } |
4e54795a | 6270 | |
544e7c33 AL |
6271 | if (info->attrs[DEVLINK_ATTR_PORT_INDEX]) { |
6272 | index = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_INDEX]); | |
6273 | ||
6274 | port = devlink_port_get_by_index(devlink, index); | |
0d8cb946 DC |
6275 | if (!port) { |
6276 | err = -ENODEV; | |
6277 | goto out_unlock; | |
6278 | } | |
544e7c33 AL |
6279 | } |
6280 | ||
4e54795a | 6281 | region_name = nla_data(attrs[DEVLINK_ATTR_REGION_NAME]); |
544e7c33 AL |
6282 | |
6283 | if (port) | |
6284 | region = devlink_port_region_get_by_name(port, region_name); | |
6285 | else | |
6286 | region = devlink_region_get_by_name(devlink, region_name); | |
6287 | ||
fdd41ec2 PP |
6288 | if (!region) { |
6289 | err = -EINVAL; | |
4e54795a | 6290 | goto out_unlock; |
fdd41ec2 | 6291 | } |
4e54795a | 6292 | |
5a46b062 JK |
6293 | if (attrs[DEVLINK_ATTR_REGION_CHUNK_ADDR] && |
6294 | attrs[DEVLINK_ATTR_REGION_CHUNK_LEN]) { | |
6295 | if (!start_offset) | |
6296 | start_offset = | |
6297 | nla_get_u64(attrs[DEVLINK_ATTR_REGION_CHUNK_ADDR]); | |
6298 | ||
6299 | end_offset = nla_get_u64(attrs[DEVLINK_ATTR_REGION_CHUNK_ADDR]); | |
6300 | end_offset += nla_get_u64(attrs[DEVLINK_ATTR_REGION_CHUNK_LEN]); | |
6301 | } | |
6302 | ||
6303 | if (end_offset > region->size) | |
6304 | end_offset = region->size; | |
6305 | ||
d5b90e99 | 6306 | /* return 0 if there is no further data to read */ |
5a46b062 | 6307 | if (start_offset == end_offset) { |
d5b90e99 JK |
6308 | err = 0; |
6309 | goto out_unlock; | |
6310 | } | |
6311 | ||
4e54795a AV |
6312 | hdr = genlmsg_put(skb, NETLINK_CB(cb->skb).portid, cb->nlh->nlmsg_seq, |
6313 | &devlink_nl_family, NLM_F_ACK | NLM_F_MULTI, | |
6314 | DEVLINK_CMD_REGION_READ); | |
fdd41ec2 PP |
6315 | if (!hdr) { |
6316 | err = -EMSGSIZE; | |
4e54795a | 6317 | goto out_unlock; |
fdd41ec2 | 6318 | } |
4e54795a AV |
6319 | |
6320 | err = devlink_nl_put_handle(skb, devlink); | |
6321 | if (err) | |
6322 | goto nla_put_failure; | |
6323 | ||
6c211809 DC |
6324 | if (region->port) { |
6325 | err = nla_put_u32(skb, DEVLINK_ATTR_PORT_INDEX, | |
6326 | region->port->index); | |
6327 | if (err) | |
544e7c33 | 6328 | goto nla_put_failure; |
6c211809 | 6329 | } |
544e7c33 | 6330 | |
4e54795a AV |
6331 | err = nla_put_string(skb, DEVLINK_ATTR_REGION_NAME, region_name); |
6332 | if (err) | |
6333 | goto nla_put_failure; | |
6334 | ||
ae0be8de | 6335 | chunks_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_REGION_CHUNKS); |
fdd41ec2 PP |
6336 | if (!chunks_attr) { |
6337 | err = -EMSGSIZE; | |
4e54795a | 6338 | goto nla_put_failure; |
fdd41ec2 | 6339 | } |
4e54795a | 6340 | |
4e54795a AV |
6341 | err = devlink_nl_region_read_snapshot_fill(skb, devlink, |
6342 | region, attrs, | |
6343 | start_offset, | |
5a46b062 | 6344 | end_offset, &ret_offset); |
4e54795a AV |
6345 | |
6346 | if (err && err != -EMSGSIZE) | |
6347 | goto nla_put_failure; | |
6348 | ||
6349 | /* Check if there was any progress done to prevent infinite loop */ | |
fdd41ec2 PP |
6350 | if (ret_offset == start_offset) { |
6351 | err = -EINVAL; | |
4e54795a | 6352 | goto nla_put_failure; |
fdd41ec2 | 6353 | } |
4e54795a AV |
6354 | |
6355 | *((u64 *)&cb->args[0]) = ret_offset; | |
6356 | ||
6357 | nla_nest_end(skb, chunks_attr); | |
6358 | genlmsg_end(skb, hdr); | |
7715023a | 6359 | devl_unlock(devlink); |
437ebfd9 | 6360 | devlink_put(devlink); |
4e54795a AV |
6361 | mutex_unlock(&devlink_mutex); |
6362 | ||
6363 | return skb->len; | |
6364 | ||
6365 | nla_put_failure: | |
6366 | genlmsg_cancel(skb, hdr); | |
6367 | out_unlock: | |
7715023a | 6368 | devl_unlock(devlink); |
437ebfd9 | 6369 | devlink_put(devlink); |
dac7c08f | 6370 | out_dev: |
4e54795a | 6371 | mutex_unlock(&devlink_mutex); |
fdd41ec2 | 6372 | return err; |
4e54795a AV |
6373 | } |
6374 | ||
c4a67a21 JK |
6375 | struct devlink_info_req { |
6376 | struct sk_buff *msg; | |
6377 | }; | |
6378 | ||
f9cf2288 JK |
6379 | int devlink_info_driver_name_put(struct devlink_info_req *req, const char *name) |
6380 | { | |
6381 | return nla_put_string(req->msg, DEVLINK_ATTR_INFO_DRIVER_NAME, name); | |
6382 | } | |
6383 | EXPORT_SYMBOL_GPL(devlink_info_driver_name_put); | |
6384 | ||
6385 | int devlink_info_serial_number_put(struct devlink_info_req *req, const char *sn) | |
6386 | { | |
6387 | return nla_put_string(req->msg, DEVLINK_ATTR_INFO_SERIAL_NUMBER, sn); | |
6388 | } | |
6389 | EXPORT_SYMBOL_GPL(devlink_info_serial_number_put); | |
6390 | ||
b5872cd0 VV |
6391 | int devlink_info_board_serial_number_put(struct devlink_info_req *req, |
6392 | const char *bsn) | |
6393 | { | |
6394 | return nla_put_string(req->msg, DEVLINK_ATTR_INFO_BOARD_SERIAL_NUMBER, | |
6395 | bsn); | |
6396 | } | |
6397 | EXPORT_SYMBOL_GPL(devlink_info_board_serial_number_put); | |
6398 | ||
fc6fae7d JK |
6399 | static int devlink_info_version_put(struct devlink_info_req *req, int attr, |
6400 | const char *version_name, | |
6401 | const char *version_value) | |
6402 | { | |
6403 | struct nlattr *nest; | |
6404 | int err; | |
6405 | ||
ae0be8de | 6406 | nest = nla_nest_start_noflag(req->msg, attr); |
fc6fae7d JK |
6407 | if (!nest) |
6408 | return -EMSGSIZE; | |
6409 | ||
6410 | err = nla_put_string(req->msg, DEVLINK_ATTR_INFO_VERSION_NAME, | |
6411 | version_name); | |
6412 | if (err) | |
6413 | goto nla_put_failure; | |
6414 | ||
6415 | err = nla_put_string(req->msg, DEVLINK_ATTR_INFO_VERSION_VALUE, | |
6416 | version_value); | |
6417 | if (err) | |
6418 | goto nla_put_failure; | |
6419 | ||
6420 | nla_nest_end(req->msg, nest); | |
6421 | ||
6422 | return 0; | |
6423 | ||
6424 | nla_put_failure: | |
6425 | nla_nest_cancel(req->msg, nest); | |
6426 | return err; | |
6427 | } | |
6428 | ||
6429 | int devlink_info_version_fixed_put(struct devlink_info_req *req, | |
6430 | const char *version_name, | |
6431 | const char *version_value) | |
6432 | { | |
6433 | return devlink_info_version_put(req, DEVLINK_ATTR_INFO_VERSION_FIXED, | |
6434 | version_name, version_value); | |
6435 | } | |
6436 | EXPORT_SYMBOL_GPL(devlink_info_version_fixed_put); | |
6437 | ||
6438 | int devlink_info_version_stored_put(struct devlink_info_req *req, | |
6439 | const char *version_name, | |
6440 | const char *version_value) | |
6441 | { | |
6442 | return devlink_info_version_put(req, DEVLINK_ATTR_INFO_VERSION_STORED, | |
6443 | version_name, version_value); | |
6444 | } | |
6445 | EXPORT_SYMBOL_GPL(devlink_info_version_stored_put); | |
6446 | ||
6447 | int devlink_info_version_running_put(struct devlink_info_req *req, | |
6448 | const char *version_name, | |
6449 | const char *version_value) | |
6450 | { | |
6451 | return devlink_info_version_put(req, DEVLINK_ATTR_INFO_VERSION_RUNNING, | |
6452 | version_name, version_value); | |
6453 | } | |
6454 | EXPORT_SYMBOL_GPL(devlink_info_version_running_put); | |
6455 | ||
f9cf2288 JK |
6456 | static int |
6457 | devlink_nl_info_fill(struct sk_buff *msg, struct devlink *devlink, | |
6458 | enum devlink_command cmd, u32 portid, | |
6459 | u32 seq, int flags, struct netlink_ext_ack *extack) | |
6460 | { | |
6461 | struct devlink_info_req req; | |
6462 | void *hdr; | |
6463 | int err; | |
6464 | ||
6465 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
6466 | if (!hdr) | |
6467 | return -EMSGSIZE; | |
6468 | ||
6469 | err = -EMSGSIZE; | |
6470 | if (devlink_nl_put_handle(msg, devlink)) | |
6471 | goto err_cancel_msg; | |
6472 | ||
6473 | req.msg = msg; | |
6474 | err = devlink->ops->info_get(devlink, &req, extack); | |
6475 | if (err) | |
6476 | goto err_cancel_msg; | |
6477 | ||
6478 | genlmsg_end(msg, hdr); | |
6479 | return 0; | |
6480 | ||
6481 | err_cancel_msg: | |
6482 | genlmsg_cancel(msg, hdr); | |
6483 | return err; | |
6484 | } | |
6485 | ||
6486 | static int devlink_nl_cmd_info_get_doit(struct sk_buff *skb, | |
6487 | struct genl_info *info) | |
6488 | { | |
6489 | struct devlink *devlink = info->user_ptr[0]; | |
6490 | struct sk_buff *msg; | |
6491 | int err; | |
6492 | ||
be6fe1d8 | 6493 | if (!devlink->ops->info_get) |
f9cf2288 JK |
6494 | return -EOPNOTSUPP; |
6495 | ||
6496 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
6497 | if (!msg) | |
6498 | return -ENOMEM; | |
6499 | ||
6500 | err = devlink_nl_info_fill(msg, devlink, DEVLINK_CMD_INFO_GET, | |
6501 | info->snd_portid, info->snd_seq, 0, | |
6502 | info->extack); | |
6503 | if (err) { | |
6504 | nlmsg_free(msg); | |
6505 | return err; | |
6506 | } | |
6507 | ||
6508 | return genlmsg_reply(msg, info); | |
6509 | } | |
6510 | ||
6511 | static int devlink_nl_cmd_info_get_dumpit(struct sk_buff *msg, | |
6512 | struct netlink_callback *cb) | |
6513 | { | |
6514 | struct devlink *devlink; | |
6515 | int start = cb->args[0]; | |
11a861d7 | 6516 | unsigned long index; |
f9cf2288 | 6517 | int idx = 0; |
c62c2cfb | 6518 | int err = 0; |
f9cf2288 JK |
6519 | |
6520 | mutex_lock(&devlink_mutex); | |
294c4f57 | 6521 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
437ebfd9 LR |
6522 | if (idx < start || !devlink->ops->info_get) |
6523 | goto inc; | |
c493b09b | 6524 | |
7715023a | 6525 | devl_lock(devlink); |
f9cf2288 JK |
6526 | err = devlink_nl_info_fill(msg, devlink, DEVLINK_CMD_INFO_GET, |
6527 | NETLINK_CB(cb->skb).portid, | |
6528 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
6529 | cb->extack); | |
7715023a | 6530 | devl_unlock(devlink); |
82274d07 JK |
6531 | if (err == -EOPNOTSUPP) |
6532 | err = 0; | |
437ebfd9 LR |
6533 | else if (err) { |
6534 | devlink_put(devlink); | |
f9cf2288 | 6535 | break; |
437ebfd9 LR |
6536 | } |
6537 | inc: | |
f9cf2288 | 6538 | idx++; |
437ebfd9 | 6539 | devlink_put(devlink); |
f9cf2288 JK |
6540 | } |
6541 | mutex_unlock(&devlink_mutex); | |
6542 | ||
c62c2cfb JP |
6543 | if (err != -EMSGSIZE) |
6544 | return err; | |
6545 | ||
f9cf2288 JK |
6546 | cb->args[0] = idx; |
6547 | return msg->len; | |
6548 | } | |
6549 | ||
1db64e87 EBE |
6550 | struct devlink_fmsg_item { |
6551 | struct list_head list; | |
6552 | int attrtype; | |
6553 | u8 nla_type; | |
6554 | u16 len; | |
d2afb41a | 6555 | int value[]; |
1db64e87 EBE |
6556 | }; |
6557 | ||
6558 | struct devlink_fmsg { | |
6559 | struct list_head item_list; | |
573ed90a AL |
6560 | bool putting_binary; /* This flag forces enclosing of binary data |
6561 | * in an array brackets. It forces using | |
6562 | * of designated API: | |
6563 | * devlink_fmsg_binary_pair_nest_start() | |
6564 | * devlink_fmsg_binary_pair_nest_end() | |
6565 | */ | |
1db64e87 EBE |
6566 | }; |
6567 | ||
6568 | static struct devlink_fmsg *devlink_fmsg_alloc(void) | |
6569 | { | |
6570 | struct devlink_fmsg *fmsg; | |
6571 | ||
6572 | fmsg = kzalloc(sizeof(*fmsg), GFP_KERNEL); | |
6573 | if (!fmsg) | |
6574 | return NULL; | |
6575 | ||
6576 | INIT_LIST_HEAD(&fmsg->item_list); | |
6577 | ||
6578 | return fmsg; | |
6579 | } | |
6580 | ||
6581 | static void devlink_fmsg_free(struct devlink_fmsg *fmsg) | |
6582 | { | |
6583 | struct devlink_fmsg_item *item, *tmp; | |
6584 | ||
6585 | list_for_each_entry_safe(item, tmp, &fmsg->item_list, list) { | |
6586 | list_del(&item->list); | |
6587 | kfree(item); | |
6588 | } | |
6589 | kfree(fmsg); | |
6590 | } | |
6591 | ||
6592 | static int devlink_fmsg_nest_common(struct devlink_fmsg *fmsg, | |
6593 | int attrtype) | |
6594 | { | |
6595 | struct devlink_fmsg_item *item; | |
6596 | ||
6597 | item = kzalloc(sizeof(*item), GFP_KERNEL); | |
6598 | if (!item) | |
6599 | return -ENOMEM; | |
6600 | ||
6601 | item->attrtype = attrtype; | |
6602 | list_add_tail(&item->list, &fmsg->item_list); | |
6603 | ||
6604 | return 0; | |
6605 | } | |
6606 | ||
6607 | int devlink_fmsg_obj_nest_start(struct devlink_fmsg *fmsg) | |
6608 | { | |
573ed90a AL |
6609 | if (fmsg->putting_binary) |
6610 | return -EINVAL; | |
6611 | ||
1db64e87 EBE |
6612 | return devlink_fmsg_nest_common(fmsg, DEVLINK_ATTR_FMSG_OBJ_NEST_START); |
6613 | } | |
6614 | EXPORT_SYMBOL_GPL(devlink_fmsg_obj_nest_start); | |
6615 | ||
6616 | static int devlink_fmsg_nest_end(struct devlink_fmsg *fmsg) | |
6617 | { | |
573ed90a AL |
6618 | if (fmsg->putting_binary) |
6619 | return -EINVAL; | |
6620 | ||
1db64e87 EBE |
6621 | return devlink_fmsg_nest_common(fmsg, DEVLINK_ATTR_FMSG_NEST_END); |
6622 | } | |
6623 | ||
6624 | int devlink_fmsg_obj_nest_end(struct devlink_fmsg *fmsg) | |
6625 | { | |
573ed90a AL |
6626 | if (fmsg->putting_binary) |
6627 | return -EINVAL; | |
6628 | ||
1db64e87 EBE |
6629 | return devlink_fmsg_nest_end(fmsg); |
6630 | } | |
6631 | EXPORT_SYMBOL_GPL(devlink_fmsg_obj_nest_end); | |
6632 | ||
6633 | #define DEVLINK_FMSG_MAX_SIZE (GENLMSG_DEFAULT_SIZE - GENL_HDRLEN - NLA_HDRLEN) | |
6634 | ||
6635 | static int devlink_fmsg_put_name(struct devlink_fmsg *fmsg, const char *name) | |
6636 | { | |
6637 | struct devlink_fmsg_item *item; | |
6638 | ||
573ed90a AL |
6639 | if (fmsg->putting_binary) |
6640 | return -EINVAL; | |
6641 | ||
1db64e87 EBE |
6642 | if (strlen(name) + 1 > DEVLINK_FMSG_MAX_SIZE) |
6643 | return -EMSGSIZE; | |
6644 | ||
6645 | item = kzalloc(sizeof(*item) + strlen(name) + 1, GFP_KERNEL); | |
6646 | if (!item) | |
6647 | return -ENOMEM; | |
6648 | ||
6649 | item->nla_type = NLA_NUL_STRING; | |
6650 | item->len = strlen(name) + 1; | |
6651 | item->attrtype = DEVLINK_ATTR_FMSG_OBJ_NAME; | |
6652 | memcpy(&item->value, name, item->len); | |
6653 | list_add_tail(&item->list, &fmsg->item_list); | |
6654 | ||
6655 | return 0; | |
6656 | } | |
6657 | ||
6658 | int devlink_fmsg_pair_nest_start(struct devlink_fmsg *fmsg, const char *name) | |
6659 | { | |
6660 | int err; | |
6661 | ||
573ed90a AL |
6662 | if (fmsg->putting_binary) |
6663 | return -EINVAL; | |
6664 | ||
1db64e87 EBE |
6665 | err = devlink_fmsg_nest_common(fmsg, DEVLINK_ATTR_FMSG_PAIR_NEST_START); |
6666 | if (err) | |
6667 | return err; | |
6668 | ||
6669 | err = devlink_fmsg_put_name(fmsg, name); | |
6670 | if (err) | |
6671 | return err; | |
6672 | ||
6673 | return 0; | |
6674 | } | |
6675 | EXPORT_SYMBOL_GPL(devlink_fmsg_pair_nest_start); | |
6676 | ||
6677 | int devlink_fmsg_pair_nest_end(struct devlink_fmsg *fmsg) | |
6678 | { | |
573ed90a AL |
6679 | if (fmsg->putting_binary) |
6680 | return -EINVAL; | |
6681 | ||
1db64e87 EBE |
6682 | return devlink_fmsg_nest_end(fmsg); |
6683 | } | |
6684 | EXPORT_SYMBOL_GPL(devlink_fmsg_pair_nest_end); | |
6685 | ||
6686 | int devlink_fmsg_arr_pair_nest_start(struct devlink_fmsg *fmsg, | |
6687 | const char *name) | |
6688 | { | |
6689 | int err; | |
6690 | ||
573ed90a AL |
6691 | if (fmsg->putting_binary) |
6692 | return -EINVAL; | |
6693 | ||
1db64e87 EBE |
6694 | err = devlink_fmsg_pair_nest_start(fmsg, name); |
6695 | if (err) | |
6696 | return err; | |
6697 | ||
6698 | err = devlink_fmsg_nest_common(fmsg, DEVLINK_ATTR_FMSG_ARR_NEST_START); | |
6699 | if (err) | |
6700 | return err; | |
6701 | ||
6702 | return 0; | |
6703 | } | |
6704 | EXPORT_SYMBOL_GPL(devlink_fmsg_arr_pair_nest_start); | |
6705 | ||
6706 | int devlink_fmsg_arr_pair_nest_end(struct devlink_fmsg *fmsg) | |
6707 | { | |
6708 | int err; | |
6709 | ||
573ed90a AL |
6710 | if (fmsg->putting_binary) |
6711 | return -EINVAL; | |
6712 | ||
1db64e87 EBE |
6713 | err = devlink_fmsg_nest_end(fmsg); |
6714 | if (err) | |
6715 | return err; | |
6716 | ||
6717 | err = devlink_fmsg_nest_end(fmsg); | |
6718 | if (err) | |
6719 | return err; | |
6720 | ||
6721 | return 0; | |
6722 | } | |
6723 | EXPORT_SYMBOL_GPL(devlink_fmsg_arr_pair_nest_end); | |
6724 | ||
573ed90a AL |
6725 | int devlink_fmsg_binary_pair_nest_start(struct devlink_fmsg *fmsg, |
6726 | const char *name) | |
6727 | { | |
6728 | int err; | |
6729 | ||
6730 | err = devlink_fmsg_arr_pair_nest_start(fmsg, name); | |
6731 | if (err) | |
6732 | return err; | |
6733 | ||
6734 | fmsg->putting_binary = true; | |
6735 | return err; | |
6736 | } | |
6737 | EXPORT_SYMBOL_GPL(devlink_fmsg_binary_pair_nest_start); | |
6738 | ||
6739 | int devlink_fmsg_binary_pair_nest_end(struct devlink_fmsg *fmsg) | |
6740 | { | |
6741 | if (!fmsg->putting_binary) | |
6742 | return -EINVAL; | |
6743 | ||
6744 | fmsg->putting_binary = false; | |
6745 | return devlink_fmsg_arr_pair_nest_end(fmsg); | |
6746 | } | |
6747 | EXPORT_SYMBOL_GPL(devlink_fmsg_binary_pair_nest_end); | |
6748 | ||
1db64e87 EBE |
6749 | static int devlink_fmsg_put_value(struct devlink_fmsg *fmsg, |
6750 | const void *value, u16 value_len, | |
6751 | u8 value_nla_type) | |
6752 | { | |
6753 | struct devlink_fmsg_item *item; | |
6754 | ||
6755 | if (value_len > DEVLINK_FMSG_MAX_SIZE) | |
6756 | return -EMSGSIZE; | |
6757 | ||
6758 | item = kzalloc(sizeof(*item) + value_len, GFP_KERNEL); | |
6759 | if (!item) | |
6760 | return -ENOMEM; | |
6761 | ||
6762 | item->nla_type = value_nla_type; | |
6763 | item->len = value_len; | |
6764 | item->attrtype = DEVLINK_ATTR_FMSG_OBJ_VALUE_DATA; | |
6765 | memcpy(&item->value, value, item->len); | |
6766 | list_add_tail(&item->list, &fmsg->item_list); | |
6767 | ||
6768 | return 0; | |
6769 | } | |
6770 | ||
6db9350a | 6771 | static int devlink_fmsg_bool_put(struct devlink_fmsg *fmsg, bool value) |
1db64e87 | 6772 | { |
573ed90a AL |
6773 | if (fmsg->putting_binary) |
6774 | return -EINVAL; | |
6775 | ||
1db64e87 EBE |
6776 | return devlink_fmsg_put_value(fmsg, &value, sizeof(value), NLA_FLAG); |
6777 | } | |
1db64e87 | 6778 | |
6db9350a | 6779 | static int devlink_fmsg_u8_put(struct devlink_fmsg *fmsg, u8 value) |
1db64e87 | 6780 | { |
573ed90a AL |
6781 | if (fmsg->putting_binary) |
6782 | return -EINVAL; | |
6783 | ||
1db64e87 EBE |
6784 | return devlink_fmsg_put_value(fmsg, &value, sizeof(value), NLA_U8); |
6785 | } | |
1db64e87 EBE |
6786 | |
6787 | int devlink_fmsg_u32_put(struct devlink_fmsg *fmsg, u32 value) | |
6788 | { | |
573ed90a AL |
6789 | if (fmsg->putting_binary) |
6790 | return -EINVAL; | |
6791 | ||
1db64e87 EBE |
6792 | return devlink_fmsg_put_value(fmsg, &value, sizeof(value), NLA_U32); |
6793 | } | |
6794 | EXPORT_SYMBOL_GPL(devlink_fmsg_u32_put); | |
6795 | ||
6db9350a | 6796 | static int devlink_fmsg_u64_put(struct devlink_fmsg *fmsg, u64 value) |
1db64e87 | 6797 | { |
573ed90a AL |
6798 | if (fmsg->putting_binary) |
6799 | return -EINVAL; | |
6800 | ||
1db64e87 EBE |
6801 | return devlink_fmsg_put_value(fmsg, &value, sizeof(value), NLA_U64); |
6802 | } | |
1db64e87 EBE |
6803 | |
6804 | int devlink_fmsg_string_put(struct devlink_fmsg *fmsg, const char *value) | |
6805 | { | |
573ed90a AL |
6806 | if (fmsg->putting_binary) |
6807 | return -EINVAL; | |
6808 | ||
1db64e87 EBE |
6809 | return devlink_fmsg_put_value(fmsg, value, strlen(value) + 1, |
6810 | NLA_NUL_STRING); | |
6811 | } | |
6812 | EXPORT_SYMBOL_GPL(devlink_fmsg_string_put); | |
6813 | ||
573ed90a AL |
6814 | int devlink_fmsg_binary_put(struct devlink_fmsg *fmsg, const void *value, |
6815 | u16 value_len) | |
1db64e87 | 6816 | { |
573ed90a AL |
6817 | if (!fmsg->putting_binary) |
6818 | return -EINVAL; | |
6819 | ||
1db64e87 EBE |
6820 | return devlink_fmsg_put_value(fmsg, value, value_len, NLA_BINARY); |
6821 | } | |
573ed90a | 6822 | EXPORT_SYMBOL_GPL(devlink_fmsg_binary_put); |
1db64e87 EBE |
6823 | |
6824 | int devlink_fmsg_bool_pair_put(struct devlink_fmsg *fmsg, const char *name, | |
6825 | bool value) | |
6826 | { | |
6827 | int err; | |
6828 | ||
6829 | err = devlink_fmsg_pair_nest_start(fmsg, name); | |
6830 | if (err) | |
6831 | return err; | |
6832 | ||
6833 | err = devlink_fmsg_bool_put(fmsg, value); | |
6834 | if (err) | |
6835 | return err; | |
6836 | ||
6837 | err = devlink_fmsg_pair_nest_end(fmsg); | |
6838 | if (err) | |
6839 | return err; | |
6840 | ||
6841 | return 0; | |
6842 | } | |
6843 | EXPORT_SYMBOL_GPL(devlink_fmsg_bool_pair_put); | |
6844 | ||
6845 | int devlink_fmsg_u8_pair_put(struct devlink_fmsg *fmsg, const char *name, | |
6846 | u8 value) | |
6847 | { | |
6848 | int err; | |
6849 | ||
6850 | err = devlink_fmsg_pair_nest_start(fmsg, name); | |
6851 | if (err) | |
6852 | return err; | |
6853 | ||
6854 | err = devlink_fmsg_u8_put(fmsg, value); | |
6855 | if (err) | |
6856 | return err; | |
6857 | ||
6858 | err = devlink_fmsg_pair_nest_end(fmsg); | |
6859 | if (err) | |
6860 | return err; | |
6861 | ||
6862 | return 0; | |
6863 | } | |
6864 | EXPORT_SYMBOL_GPL(devlink_fmsg_u8_pair_put); | |
6865 | ||
6866 | int devlink_fmsg_u32_pair_put(struct devlink_fmsg *fmsg, const char *name, | |
6867 | u32 value) | |
6868 | { | |
6869 | int err; | |
6870 | ||
6871 | err = devlink_fmsg_pair_nest_start(fmsg, name); | |
6872 | if (err) | |
6873 | return err; | |
6874 | ||
6875 | err = devlink_fmsg_u32_put(fmsg, value); | |
6876 | if (err) | |
6877 | return err; | |
6878 | ||
6879 | err = devlink_fmsg_pair_nest_end(fmsg); | |
6880 | if (err) | |
6881 | return err; | |
6882 | ||
6883 | return 0; | |
6884 | } | |
6885 | EXPORT_SYMBOL_GPL(devlink_fmsg_u32_pair_put); | |
6886 | ||
6887 | int devlink_fmsg_u64_pair_put(struct devlink_fmsg *fmsg, const char *name, | |
6888 | u64 value) | |
6889 | { | |
6890 | int err; | |
6891 | ||
6892 | err = devlink_fmsg_pair_nest_start(fmsg, name); | |
6893 | if (err) | |
6894 | return err; | |
6895 | ||
6896 | err = devlink_fmsg_u64_put(fmsg, value); | |
6897 | if (err) | |
6898 | return err; | |
6899 | ||
6900 | err = devlink_fmsg_pair_nest_end(fmsg); | |
6901 | if (err) | |
6902 | return err; | |
6903 | ||
6904 | return 0; | |
6905 | } | |
6906 | EXPORT_SYMBOL_GPL(devlink_fmsg_u64_pair_put); | |
6907 | ||
6908 | int devlink_fmsg_string_pair_put(struct devlink_fmsg *fmsg, const char *name, | |
6909 | const char *value) | |
6910 | { | |
6911 | int err; | |
6912 | ||
6913 | err = devlink_fmsg_pair_nest_start(fmsg, name); | |
6914 | if (err) | |
6915 | return err; | |
6916 | ||
6917 | err = devlink_fmsg_string_put(fmsg, value); | |
6918 | if (err) | |
6919 | return err; | |
6920 | ||
6921 | err = devlink_fmsg_pair_nest_end(fmsg); | |
6922 | if (err) | |
6923 | return err; | |
6924 | ||
6925 | return 0; | |
6926 | } | |
6927 | EXPORT_SYMBOL_GPL(devlink_fmsg_string_pair_put); | |
6928 | ||
6929 | int devlink_fmsg_binary_pair_put(struct devlink_fmsg *fmsg, const char *name, | |
e2cde864 | 6930 | const void *value, u32 value_len) |
1db64e87 | 6931 | { |
e2cde864 | 6932 | u32 data_size; |
573ed90a | 6933 | int end_err; |
e2cde864 | 6934 | u32 offset; |
1db64e87 EBE |
6935 | int err; |
6936 | ||
573ed90a | 6937 | err = devlink_fmsg_binary_pair_nest_start(fmsg, name); |
1db64e87 EBE |
6938 | if (err) |
6939 | return err; | |
6940 | ||
e2cde864 AL |
6941 | for (offset = 0; offset < value_len; offset += data_size) { |
6942 | data_size = value_len - offset; | |
6943 | if (data_size > DEVLINK_FMSG_MAX_SIZE) | |
6944 | data_size = DEVLINK_FMSG_MAX_SIZE; | |
6945 | err = devlink_fmsg_binary_put(fmsg, value + offset, data_size); | |
6946 | if (err) | |
573ed90a AL |
6947 | break; |
6948 | /* Exit from loop with a break (instead of | |
6949 | * return) to make sure putting_binary is turned off in | |
6950 | * devlink_fmsg_binary_pair_nest_end | |
6951 | */ | |
e2cde864 | 6952 | } |
1db64e87 | 6953 | |
573ed90a AL |
6954 | end_err = devlink_fmsg_binary_pair_nest_end(fmsg); |
6955 | if (end_err) | |
6956 | err = end_err; | |
1db64e87 | 6957 | |
573ed90a | 6958 | return err; |
1db64e87 EBE |
6959 | } |
6960 | EXPORT_SYMBOL_GPL(devlink_fmsg_binary_pair_put); | |
6961 | ||
6962 | static int | |
6963 | devlink_fmsg_item_fill_type(struct devlink_fmsg_item *msg, struct sk_buff *skb) | |
6964 | { | |
6965 | switch (msg->nla_type) { | |
6966 | case NLA_FLAG: | |
6967 | case NLA_U8: | |
6968 | case NLA_U32: | |
6969 | case NLA_U64: | |
6970 | case NLA_NUL_STRING: | |
6971 | case NLA_BINARY: | |
6972 | return nla_put_u8(skb, DEVLINK_ATTR_FMSG_OBJ_VALUE_TYPE, | |
6973 | msg->nla_type); | |
6974 | default: | |
6975 | return -EINVAL; | |
6976 | } | |
6977 | } | |
6978 | ||
6979 | static int | |
6980 | devlink_fmsg_item_fill_data(struct devlink_fmsg_item *msg, struct sk_buff *skb) | |
6981 | { | |
6982 | int attrtype = DEVLINK_ATTR_FMSG_OBJ_VALUE_DATA; | |
6983 | u8 tmp; | |
6984 | ||
6985 | switch (msg->nla_type) { | |
6986 | case NLA_FLAG: | |
6987 | /* Always provide flag data, regardless of its value */ | |
6988 | tmp = *(bool *) msg->value; | |
6989 | ||
6990 | return nla_put_u8(skb, attrtype, tmp); | |
6991 | case NLA_U8: | |
6992 | return nla_put_u8(skb, attrtype, *(u8 *) msg->value); | |
6993 | case NLA_U32: | |
6994 | return nla_put_u32(skb, attrtype, *(u32 *) msg->value); | |
6995 | case NLA_U64: | |
6996 | return nla_put_u64_64bit(skb, attrtype, *(u64 *) msg->value, | |
6997 | DEVLINK_ATTR_PAD); | |
6998 | case NLA_NUL_STRING: | |
6999 | return nla_put_string(skb, attrtype, (char *) &msg->value); | |
7000 | case NLA_BINARY: | |
7001 | return nla_put(skb, attrtype, msg->len, (void *) &msg->value); | |
7002 | default: | |
7003 | return -EINVAL; | |
7004 | } | |
7005 | } | |
7006 | ||
7007 | static int | |
7008 | devlink_fmsg_prepare_skb(struct devlink_fmsg *fmsg, struct sk_buff *skb, | |
7009 | int *start) | |
7010 | { | |
7011 | struct devlink_fmsg_item *item; | |
7012 | struct nlattr *fmsg_nlattr; | |
7013 | int i = 0; | |
7014 | int err; | |
7015 | ||
ae0be8de | 7016 | fmsg_nlattr = nla_nest_start_noflag(skb, DEVLINK_ATTR_FMSG); |
1db64e87 EBE |
7017 | if (!fmsg_nlattr) |
7018 | return -EMSGSIZE; | |
7019 | ||
7020 | list_for_each_entry(item, &fmsg->item_list, list) { | |
7021 | if (i < *start) { | |
7022 | i++; | |
7023 | continue; | |
7024 | } | |
7025 | ||
7026 | switch (item->attrtype) { | |
7027 | case DEVLINK_ATTR_FMSG_OBJ_NEST_START: | |
7028 | case DEVLINK_ATTR_FMSG_PAIR_NEST_START: | |
7029 | case DEVLINK_ATTR_FMSG_ARR_NEST_START: | |
7030 | case DEVLINK_ATTR_FMSG_NEST_END: | |
7031 | err = nla_put_flag(skb, item->attrtype); | |
7032 | break; | |
7033 | case DEVLINK_ATTR_FMSG_OBJ_VALUE_DATA: | |
7034 | err = devlink_fmsg_item_fill_type(item, skb); | |
7035 | if (err) | |
7036 | break; | |
7037 | err = devlink_fmsg_item_fill_data(item, skb); | |
7038 | break; | |
7039 | case DEVLINK_ATTR_FMSG_OBJ_NAME: | |
7040 | err = nla_put_string(skb, item->attrtype, | |
7041 | (char *) &item->value); | |
7042 | break; | |
7043 | default: | |
7044 | err = -EINVAL; | |
7045 | break; | |
7046 | } | |
7047 | if (!err) | |
7048 | *start = ++i; | |
7049 | else | |
7050 | break; | |
7051 | } | |
7052 | ||
7053 | nla_nest_end(skb, fmsg_nlattr); | |
7054 | return err; | |
7055 | } | |
7056 | ||
7057 | static int devlink_fmsg_snd(struct devlink_fmsg *fmsg, | |
7058 | struct genl_info *info, | |
7059 | enum devlink_command cmd, int flags) | |
7060 | { | |
7061 | struct nlmsghdr *nlh; | |
7062 | struct sk_buff *skb; | |
7063 | bool last = false; | |
7064 | int index = 0; | |
7065 | void *hdr; | |
7066 | int err; | |
7067 | ||
7068 | while (!last) { | |
7069 | int tmp_index = index; | |
7070 | ||
7071 | skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
7072 | if (!skb) | |
7073 | return -ENOMEM; | |
7074 | ||
7075 | hdr = genlmsg_put(skb, info->snd_portid, info->snd_seq, | |
7076 | &devlink_nl_family, flags | NLM_F_MULTI, cmd); | |
7077 | if (!hdr) { | |
7078 | err = -EMSGSIZE; | |
7079 | goto nla_put_failure; | |
7080 | } | |
7081 | ||
7082 | err = devlink_fmsg_prepare_skb(fmsg, skb, &index); | |
7083 | if (!err) | |
7084 | last = true; | |
7085 | else if (err != -EMSGSIZE || tmp_index == index) | |
7086 | goto nla_put_failure; | |
7087 | ||
7088 | genlmsg_end(skb, hdr); | |
7089 | err = genlmsg_reply(skb, info); | |
7090 | if (err) | |
7091 | return err; | |
7092 | } | |
7093 | ||
7094 | skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
7095 | if (!skb) | |
7096 | return -ENOMEM; | |
7097 | nlh = nlmsg_put(skb, info->snd_portid, info->snd_seq, | |
7098 | NLMSG_DONE, 0, flags | NLM_F_MULTI); | |
7099 | if (!nlh) { | |
7100 | err = -EMSGSIZE; | |
7101 | goto nla_put_failure; | |
7102 | } | |
1db64e87 | 7103 | |
fde55ea7 | 7104 | return genlmsg_reply(skb, info); |
1db64e87 EBE |
7105 | |
7106 | nla_put_failure: | |
7107 | nlmsg_free(skb); | |
7108 | return err; | |
7109 | } | |
7110 | ||
e44ef4e4 AL |
7111 | static int devlink_fmsg_dumpit(struct devlink_fmsg *fmsg, struct sk_buff *skb, |
7112 | struct netlink_callback *cb, | |
7113 | enum devlink_command cmd) | |
7114 | { | |
7115 | int index = cb->args[0]; | |
7116 | int tmp_index = index; | |
7117 | void *hdr; | |
7118 | int err; | |
7119 | ||
7120 | hdr = genlmsg_put(skb, NETLINK_CB(cb->skb).portid, cb->nlh->nlmsg_seq, | |
7121 | &devlink_nl_family, NLM_F_ACK | NLM_F_MULTI, cmd); | |
7122 | if (!hdr) { | |
7123 | err = -EMSGSIZE; | |
7124 | goto nla_put_failure; | |
7125 | } | |
7126 | ||
7127 | err = devlink_fmsg_prepare_skb(fmsg, skb, &index); | |
7128 | if ((err && err != -EMSGSIZE) || tmp_index == index) | |
7129 | goto nla_put_failure; | |
7130 | ||
7131 | cb->args[0] = index; | |
7132 | genlmsg_end(skb, hdr); | |
7133 | return skb->len; | |
7134 | ||
7135 | nla_put_failure: | |
7136 | genlmsg_cancel(skb, hdr); | |
7137 | return err; | |
7138 | } | |
7139 | ||
a0bdcc59 EBE |
7140 | struct devlink_health_reporter { |
7141 | struct list_head list; | |
7142 | void *priv; | |
7143 | const struct devlink_health_reporter_ops *ops; | |
7144 | struct devlink *devlink; | |
f4f54166 | 7145 | struct devlink_port *devlink_port; |
c8e1da0b EBE |
7146 | struct devlink_fmsg *dump_fmsg; |
7147 | struct mutex dump_lock; /* lock parallel read/write from dump buffers */ | |
a0bdcc59 EBE |
7148 | u64 graceful_period; |
7149 | bool auto_recover; | |
48bb52c8 | 7150 | bool auto_dump; |
a0bdcc59 | 7151 | u8 health_state; |
c8e1da0b | 7152 | u64 dump_ts; |
d279505b | 7153 | u64 dump_real_ts; |
c8e1da0b EBE |
7154 | u64 error_count; |
7155 | u64 recovery_count; | |
7156 | u64 last_recovery_ts; | |
b587bdaf | 7157 | refcount_t refcount; |
c8e1da0b EBE |
7158 | }; |
7159 | ||
a0bdcc59 EBE |
7160 | void * |
7161 | devlink_health_reporter_priv(struct devlink_health_reporter *reporter) | |
7162 | { | |
7163 | return reporter->priv; | |
7164 | } | |
7165 | EXPORT_SYMBOL_GPL(devlink_health_reporter_priv); | |
7166 | ||
7167 | static struct devlink_health_reporter * | |
bd821005 VT |
7168 | __devlink_health_reporter_find_by_name(struct list_head *reporter_list, |
7169 | struct mutex *list_lock, | |
7170 | const char *reporter_name) | |
a0bdcc59 EBE |
7171 | { |
7172 | struct devlink_health_reporter *reporter; | |
7173 | ||
bd821005 VT |
7174 | lockdep_assert_held(list_lock); |
7175 | list_for_each_entry(reporter, reporter_list, list) | |
a0bdcc59 EBE |
7176 | if (!strcmp(reporter->ops->name, reporter_name)) |
7177 | return reporter; | |
7178 | return NULL; | |
7179 | } | |
7180 | ||
bd821005 VT |
7181 | static struct devlink_health_reporter * |
7182 | devlink_health_reporter_find_by_name(struct devlink *devlink, | |
7183 | const char *reporter_name) | |
7184 | { | |
7185 | return __devlink_health_reporter_find_by_name(&devlink->reporter_list, | |
7186 | &devlink->reporters_lock, | |
7187 | reporter_name); | |
7188 | } | |
7189 | ||
f4f54166 VT |
7190 | static struct devlink_health_reporter * |
7191 | devlink_port_health_reporter_find_by_name(struct devlink_port *devlink_port, | |
7192 | const char *reporter_name) | |
7193 | { | |
7194 | return __devlink_health_reporter_find_by_name(&devlink_port->reporter_list, | |
7195 | &devlink_port->reporters_lock, | |
7196 | reporter_name); | |
7197 | } | |
7198 | ||
c57544b3 VT |
7199 | static struct devlink_health_reporter * |
7200 | __devlink_health_reporter_create(struct devlink *devlink, | |
7201 | const struct devlink_health_reporter_ops *ops, | |
7202 | u64 graceful_period, void *priv) | |
7203 | { | |
7204 | struct devlink_health_reporter *reporter; | |
7205 | ||
7206 | if (WARN_ON(graceful_period && !ops->recover)) | |
7207 | return ERR_PTR(-EINVAL); | |
7208 | ||
7209 | reporter = kzalloc(sizeof(*reporter), GFP_KERNEL); | |
7210 | if (!reporter) | |
7211 | return ERR_PTR(-ENOMEM); | |
7212 | ||
7213 | reporter->priv = priv; | |
7214 | reporter->ops = ops; | |
7215 | reporter->devlink = devlink; | |
7216 | reporter->graceful_period = graceful_period; | |
7217 | reporter->auto_recover = !!ops->recover; | |
7218 | reporter->auto_dump = !!ops->dump; | |
7219 | mutex_init(&reporter->dump_lock); | |
7220 | refcount_set(&reporter->refcount, 1); | |
7221 | return reporter; | |
7222 | } | |
7223 | ||
15c724b9 VT |
7224 | /** |
7225 | * devlink_port_health_reporter_create - create devlink health reporter for | |
7226 | * specified port instance | |
7227 | * | |
7228 | * @port: devlink_port which should contain the new reporter | |
7229 | * @ops: ops | |
7230 | * @graceful_period: to avoid recovery loops, in msecs | |
7231 | * @priv: priv | |
7232 | */ | |
7233 | struct devlink_health_reporter * | |
7234 | devlink_port_health_reporter_create(struct devlink_port *port, | |
7235 | const struct devlink_health_reporter_ops *ops, | |
7236 | u64 graceful_period, void *priv) | |
7237 | { | |
7238 | struct devlink_health_reporter *reporter; | |
7239 | ||
7240 | mutex_lock(&port->reporters_lock); | |
7241 | if (__devlink_health_reporter_find_by_name(&port->reporter_list, | |
7242 | &port->reporters_lock, ops->name)) { | |
7243 | reporter = ERR_PTR(-EEXIST); | |
7244 | goto unlock; | |
7245 | } | |
7246 | ||
7247 | reporter = __devlink_health_reporter_create(port->devlink, ops, | |
7248 | graceful_period, priv); | |
7249 | if (IS_ERR(reporter)) | |
7250 | goto unlock; | |
7251 | ||
7252 | reporter->devlink_port = port; | |
7253 | list_add_tail(&reporter->list, &port->reporter_list); | |
7254 | unlock: | |
7255 | mutex_unlock(&port->reporters_lock); | |
7256 | return reporter; | |
7257 | } | |
7258 | EXPORT_SYMBOL_GPL(devlink_port_health_reporter_create); | |
7259 | ||
a0bdcc59 EBE |
7260 | /** |
7261 | * devlink_health_reporter_create - create devlink health reporter | |
7262 | * | |
7263 | * @devlink: devlink | |
7264 | * @ops: ops | |
7265 | * @graceful_period: to avoid recovery loops, in msecs | |
a0bdcc59 EBE |
7266 | * @priv: priv |
7267 | */ | |
7268 | struct devlink_health_reporter * | |
7269 | devlink_health_reporter_create(struct devlink *devlink, | |
7270 | const struct devlink_health_reporter_ops *ops, | |
ba7d16c7 | 7271 | u64 graceful_period, void *priv) |
a0bdcc59 EBE |
7272 | { |
7273 | struct devlink_health_reporter *reporter; | |
7274 | ||
b587bdaf | 7275 | mutex_lock(&devlink->reporters_lock); |
a0bdcc59 EBE |
7276 | if (devlink_health_reporter_find_by_name(devlink, ops->name)) { |
7277 | reporter = ERR_PTR(-EEXIST); | |
7278 | goto unlock; | |
7279 | } | |
7280 | ||
c57544b3 VT |
7281 | reporter = __devlink_health_reporter_create(devlink, ops, |
7282 | graceful_period, priv); | |
7283 | if (IS_ERR(reporter)) | |
a0bdcc59 | 7284 | goto unlock; |
a0bdcc59 | 7285 | |
a0bdcc59 EBE |
7286 | list_add_tail(&reporter->list, &devlink->reporter_list); |
7287 | unlock: | |
b587bdaf | 7288 | mutex_unlock(&devlink->reporters_lock); |
a0bdcc59 EBE |
7289 | return reporter; |
7290 | } | |
7291 | EXPORT_SYMBOL_GPL(devlink_health_reporter_create); | |
7292 | ||
3c5584bf VT |
7293 | static void |
7294 | devlink_health_reporter_free(struct devlink_health_reporter *reporter) | |
7295 | { | |
7296 | mutex_destroy(&reporter->dump_lock); | |
7297 | if (reporter->dump_fmsg) | |
7298 | devlink_fmsg_free(reporter->dump_fmsg); | |
7299 | kfree(reporter); | |
7300 | } | |
7301 | ||
7302 | static void | |
7303 | devlink_health_reporter_put(struct devlink_health_reporter *reporter) | |
7304 | { | |
7305 | if (refcount_dec_and_test(&reporter->refcount)) | |
7306 | devlink_health_reporter_free(reporter); | |
7307 | } | |
7308 | ||
7309 | static void | |
7310 | __devlink_health_reporter_destroy(struct devlink_health_reporter *reporter) | |
7311 | { | |
7312 | list_del(&reporter->list); | |
7313 | devlink_health_reporter_put(reporter); | |
7314 | } | |
7315 | ||
a0bdcc59 EBE |
7316 | /** |
7317 | * devlink_health_reporter_destroy - destroy devlink health reporter | |
7318 | * | |
7319 | * @reporter: devlink health reporter to destroy | |
7320 | */ | |
7321 | void | |
7322 | devlink_health_reporter_destroy(struct devlink_health_reporter *reporter) | |
7323 | { | |
5d037b4d IS |
7324 | struct mutex *lock = &reporter->devlink->reporters_lock; |
7325 | ||
7326 | mutex_lock(lock); | |
3c5584bf | 7327 | __devlink_health_reporter_destroy(reporter); |
5d037b4d | 7328 | mutex_unlock(lock); |
a0bdcc59 EBE |
7329 | } |
7330 | EXPORT_SYMBOL_GPL(devlink_health_reporter_destroy); | |
7331 | ||
15c724b9 VT |
7332 | /** |
7333 | * devlink_port_health_reporter_destroy - destroy devlink port health reporter | |
7334 | * | |
7335 | * @reporter: devlink health reporter to destroy | |
7336 | */ | |
7337 | void | |
7338 | devlink_port_health_reporter_destroy(struct devlink_health_reporter *reporter) | |
7339 | { | |
5d037b4d IS |
7340 | struct mutex *lock = &reporter->devlink_port->reporters_lock; |
7341 | ||
7342 | mutex_lock(lock); | |
15c724b9 | 7343 | __devlink_health_reporter_destroy(reporter); |
5d037b4d | 7344 | mutex_unlock(lock); |
15c724b9 VT |
7345 | } |
7346 | EXPORT_SYMBOL_GPL(devlink_port_health_reporter_destroy); | |
7347 | ||
6ec8b6cd MS |
7348 | static int |
7349 | devlink_nl_health_reporter_fill(struct sk_buff *msg, | |
6ec8b6cd MS |
7350 | struct devlink_health_reporter *reporter, |
7351 | enum devlink_command cmd, u32 portid, | |
7352 | u32 seq, int flags) | |
7353 | { | |
7ca973dc | 7354 | struct devlink *devlink = reporter->devlink; |
6ec8b6cd MS |
7355 | struct nlattr *reporter_attr; |
7356 | void *hdr; | |
7357 | ||
7358 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
7359 | if (!hdr) | |
7360 | return -EMSGSIZE; | |
7361 | ||
7362 | if (devlink_nl_put_handle(msg, devlink)) | |
7363 | goto genlmsg_cancel; | |
7364 | ||
f4f54166 VT |
7365 | if (reporter->devlink_port) { |
7366 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, reporter->devlink_port->index)) | |
7367 | goto genlmsg_cancel; | |
7368 | } | |
6ec8b6cd MS |
7369 | reporter_attr = nla_nest_start_noflag(msg, |
7370 | DEVLINK_ATTR_HEALTH_REPORTER); | |
7371 | if (!reporter_attr) | |
7372 | goto genlmsg_cancel; | |
7373 | if (nla_put_string(msg, DEVLINK_ATTR_HEALTH_REPORTER_NAME, | |
7374 | reporter->ops->name)) | |
7375 | goto reporter_nest_cancel; | |
7376 | if (nla_put_u8(msg, DEVLINK_ATTR_HEALTH_REPORTER_STATE, | |
7377 | reporter->health_state)) | |
7378 | goto reporter_nest_cancel; | |
7379 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_HEALTH_REPORTER_ERR_COUNT, | |
7380 | reporter->error_count, DEVLINK_ATTR_PAD)) | |
7381 | goto reporter_nest_cancel; | |
7382 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_HEALTH_REPORTER_RECOVER_COUNT, | |
7383 | reporter->recovery_count, DEVLINK_ATTR_PAD)) | |
7384 | goto reporter_nest_cancel; | |
7385 | if (reporter->ops->recover && | |
7386 | nla_put_u64_64bit(msg, DEVLINK_ATTR_HEALTH_REPORTER_GRACEFUL_PERIOD, | |
7387 | reporter->graceful_period, | |
7388 | DEVLINK_ATTR_PAD)) | |
7389 | goto reporter_nest_cancel; | |
7390 | if (reporter->ops->recover && | |
7391 | nla_put_u8(msg, DEVLINK_ATTR_HEALTH_REPORTER_AUTO_RECOVER, | |
7392 | reporter->auto_recover)) | |
7393 | goto reporter_nest_cancel; | |
7394 | if (reporter->dump_fmsg && | |
7395 | nla_put_u64_64bit(msg, DEVLINK_ATTR_HEALTH_REPORTER_DUMP_TS, | |
7396 | jiffies_to_msecs(reporter->dump_ts), | |
7397 | DEVLINK_ATTR_PAD)) | |
7398 | goto reporter_nest_cancel; | |
7399 | if (reporter->dump_fmsg && | |
7400 | nla_put_u64_64bit(msg, DEVLINK_ATTR_HEALTH_REPORTER_DUMP_TS_NS, | |
7401 | reporter->dump_real_ts, DEVLINK_ATTR_PAD)) | |
7402 | goto reporter_nest_cancel; | |
48bb52c8 EBE |
7403 | if (reporter->ops->dump && |
7404 | nla_put_u8(msg, DEVLINK_ATTR_HEALTH_REPORTER_AUTO_DUMP, | |
7405 | reporter->auto_dump)) | |
7406 | goto reporter_nest_cancel; | |
6ec8b6cd MS |
7407 | |
7408 | nla_nest_end(msg, reporter_attr); | |
7409 | genlmsg_end(msg, hdr); | |
7410 | return 0; | |
7411 | ||
7412 | reporter_nest_cancel: | |
7413 | nla_nest_end(msg, reporter_attr); | |
7414 | genlmsg_cancel: | |
7415 | genlmsg_cancel(msg, hdr); | |
7416 | return -EMSGSIZE; | |
7417 | } | |
7418 | ||
7419 | static void devlink_recover_notify(struct devlink_health_reporter *reporter, | |
7420 | enum devlink_command cmd) | |
7421 | { | |
cf530217 | 7422 | struct devlink *devlink = reporter->devlink; |
6ec8b6cd MS |
7423 | struct sk_buff *msg; |
7424 | int err; | |
7425 | ||
7426 | WARN_ON(cmd != DEVLINK_CMD_HEALTH_REPORTER_RECOVER); | |
cf530217 | 7427 | WARN_ON(!xa_get_mark(&devlinks, devlink->index, DEVLINK_REGISTERED)); |
6ec8b6cd MS |
7428 | |
7429 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
7430 | if (!msg) | |
7431 | return; | |
7432 | ||
7ca973dc | 7433 | err = devlink_nl_health_reporter_fill(msg, reporter, cmd, 0, 0, 0); |
6ec8b6cd MS |
7434 | if (err) { |
7435 | nlmsg_free(msg); | |
7436 | return; | |
7437 | } | |
7438 | ||
cf530217 LR |
7439 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), msg, |
7440 | 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
6ec8b6cd MS |
7441 | } |
7442 | ||
6181e5cb VG |
7443 | void |
7444 | devlink_health_reporter_recovery_done(struct devlink_health_reporter *reporter) | |
7445 | { | |
7446 | reporter->recovery_count++; | |
7447 | reporter->last_recovery_ts = jiffies; | |
7448 | } | |
7449 | EXPORT_SYMBOL_GPL(devlink_health_reporter_recovery_done); | |
7450 | ||
c8e1da0b EBE |
7451 | static int |
7452 | devlink_health_reporter_recover(struct devlink_health_reporter *reporter, | |
e7a98105 | 7453 | void *priv_ctx, struct netlink_ext_ack *extack) |
c8e1da0b EBE |
7454 | { |
7455 | int err; | |
7456 | ||
40281820 JP |
7457 | if (reporter->health_state == DEVLINK_HEALTH_REPORTER_STATE_HEALTHY) |
7458 | return 0; | |
7459 | ||
c8e1da0b EBE |
7460 | if (!reporter->ops->recover) |
7461 | return -EOPNOTSUPP; | |
7462 | ||
e7a98105 | 7463 | err = reporter->ops->recover(reporter, priv_ctx, extack); |
c8e1da0b EBE |
7464 | if (err) |
7465 | return err; | |
7466 | ||
6181e5cb | 7467 | devlink_health_reporter_recovery_done(reporter); |
c8e1da0b | 7468 | reporter->health_state = DEVLINK_HEALTH_REPORTER_STATE_HEALTHY; |
6ec8b6cd | 7469 | devlink_recover_notify(reporter, DEVLINK_CMD_HEALTH_REPORTER_RECOVER); |
c8e1da0b EBE |
7470 | |
7471 | return 0; | |
7472 | } | |
7473 | ||
7474 | static void | |
7475 | devlink_health_dump_clear(struct devlink_health_reporter *reporter) | |
7476 | { | |
7477 | if (!reporter->dump_fmsg) | |
7478 | return; | |
7479 | devlink_fmsg_free(reporter->dump_fmsg); | |
7480 | reporter->dump_fmsg = NULL; | |
7481 | } | |
7482 | ||
7483 | static int devlink_health_do_dump(struct devlink_health_reporter *reporter, | |
e7a98105 JP |
7484 | void *priv_ctx, |
7485 | struct netlink_ext_ack *extack) | |
c8e1da0b EBE |
7486 | { |
7487 | int err; | |
7488 | ||
7489 | if (!reporter->ops->dump) | |
7490 | return 0; | |
7491 | ||
7492 | if (reporter->dump_fmsg) | |
7493 | return 0; | |
7494 | ||
7495 | reporter->dump_fmsg = devlink_fmsg_alloc(); | |
7496 | if (!reporter->dump_fmsg) { | |
7497 | err = -ENOMEM; | |
7498 | return err; | |
7499 | } | |
7500 | ||
7501 | err = devlink_fmsg_obj_nest_start(reporter->dump_fmsg); | |
7502 | if (err) | |
7503 | goto dump_err; | |
7504 | ||
7505 | err = reporter->ops->dump(reporter, reporter->dump_fmsg, | |
e7a98105 | 7506 | priv_ctx, extack); |
c8e1da0b EBE |
7507 | if (err) |
7508 | goto dump_err; | |
7509 | ||
7510 | err = devlink_fmsg_obj_nest_end(reporter->dump_fmsg); | |
7511 | if (err) | |
7512 | goto dump_err; | |
7513 | ||
7514 | reporter->dump_ts = jiffies; | |
d279505b | 7515 | reporter->dump_real_ts = ktime_get_real_ns(); |
c8e1da0b EBE |
7516 | |
7517 | return 0; | |
7518 | ||
7519 | dump_err: | |
7520 | devlink_health_dump_clear(reporter); | |
7521 | return err; | |
7522 | } | |
7523 | ||
7524 | int devlink_health_report(struct devlink_health_reporter *reporter, | |
7525 | const char *msg, void *priv_ctx) | |
7526 | { | |
a0a21adb | 7527 | enum devlink_health_reporter_state prev_health_state; |
c8e1da0b | 7528 | struct devlink *devlink = reporter->devlink; |
bea0c5c9 | 7529 | unsigned long recover_ts_threshold; |
c8e1da0b EBE |
7530 | |
7531 | /* write a log message of the current error */ | |
7532 | WARN_ON(!msg); | |
7533 | trace_devlink_health_report(devlink, reporter->ops->name, msg); | |
7534 | reporter->error_count++; | |
a0a21adb EBE |
7535 | prev_health_state = reporter->health_state; |
7536 | reporter->health_state = DEVLINK_HEALTH_REPORTER_STATE_ERROR; | |
6ec8b6cd | 7537 | devlink_recover_notify(reporter, DEVLINK_CMD_HEALTH_REPORTER_RECOVER); |
c8e1da0b EBE |
7538 | |
7539 | /* abort if the previous error wasn't recovered */ | |
bea0c5c9 AL |
7540 | recover_ts_threshold = reporter->last_recovery_ts + |
7541 | msecs_to_jiffies(reporter->graceful_period); | |
c8e1da0b | 7542 | if (reporter->auto_recover && |
a0a21adb | 7543 | (prev_health_state != DEVLINK_HEALTH_REPORTER_STATE_HEALTHY || |
bea0c5c9 AL |
7544 | (reporter->last_recovery_ts && reporter->recovery_count && |
7545 | time_is_after_jiffies(recover_ts_threshold)))) { | |
c8e1da0b EBE |
7546 | trace_devlink_health_recover_aborted(devlink, |
7547 | reporter->ops->name, | |
7548 | reporter->health_state, | |
7549 | jiffies - | |
7550 | reporter->last_recovery_ts); | |
7551 | return -ECANCELED; | |
7552 | } | |
7553 | ||
7554 | reporter->health_state = DEVLINK_HEALTH_REPORTER_STATE_ERROR; | |
7555 | ||
48bb52c8 EBE |
7556 | if (reporter->auto_dump) { |
7557 | mutex_lock(&reporter->dump_lock); | |
7558 | /* store current dump of current error, for later analysis */ | |
7559 | devlink_health_do_dump(reporter, priv_ctx, NULL); | |
7560 | mutex_unlock(&reporter->dump_lock); | |
7561 | } | |
c8e1da0b EBE |
7562 | |
7563 | if (reporter->auto_recover) | |
e7a98105 JP |
7564 | return devlink_health_reporter_recover(reporter, |
7565 | priv_ctx, NULL); | |
c8e1da0b EBE |
7566 | |
7567 | return 0; | |
7568 | } | |
7569 | EXPORT_SYMBOL_GPL(devlink_health_report); | |
7570 | ||
7afe335a | 7571 | static struct devlink_health_reporter * |
e44ef4e4 AL |
7572 | devlink_health_reporter_get_from_attrs(struct devlink *devlink, |
7573 | struct nlattr **attrs) | |
7afe335a | 7574 | { |
b587bdaf | 7575 | struct devlink_health_reporter *reporter; |
f4f54166 | 7576 | struct devlink_port *devlink_port; |
7afe335a EBE |
7577 | char *reporter_name; |
7578 | ||
e44ef4e4 | 7579 | if (!attrs[DEVLINK_ATTR_HEALTH_REPORTER_NAME]) |
7afe335a EBE |
7580 | return NULL; |
7581 | ||
e44ef4e4 | 7582 | reporter_name = nla_data(attrs[DEVLINK_ATTR_HEALTH_REPORTER_NAME]); |
f4f54166 VT |
7583 | devlink_port = devlink_port_get_from_attrs(devlink, attrs); |
7584 | if (IS_ERR(devlink_port)) { | |
7585 | mutex_lock(&devlink->reporters_lock); | |
7586 | reporter = devlink_health_reporter_find_by_name(devlink, reporter_name); | |
7587 | if (reporter) | |
7588 | refcount_inc(&reporter->refcount); | |
7589 | mutex_unlock(&devlink->reporters_lock); | |
7590 | } else { | |
7591 | mutex_lock(&devlink_port->reporters_lock); | |
7592 | reporter = devlink_port_health_reporter_find_by_name(devlink_port, reporter_name); | |
7593 | if (reporter) | |
7594 | refcount_inc(&reporter->refcount); | |
7595 | mutex_unlock(&devlink_port->reporters_lock); | |
7596 | } | |
7597 | ||
b587bdaf MS |
7598 | return reporter; |
7599 | } | |
7600 | ||
e44ef4e4 AL |
7601 | static struct devlink_health_reporter * |
7602 | devlink_health_reporter_get_from_info(struct devlink *devlink, | |
7603 | struct genl_info *info) | |
7604 | { | |
7605 | return devlink_health_reporter_get_from_attrs(devlink, info->attrs); | |
7606 | } | |
7607 | ||
7608 | static struct devlink_health_reporter * | |
7609 | devlink_health_reporter_get_from_cb(struct netlink_callback *cb) | |
7610 | { | |
ee85da53 | 7611 | const struct genl_dumpit_info *info = genl_dumpit_info(cb); |
e44ef4e4 | 7612 | struct devlink_health_reporter *reporter; |
ee85da53 | 7613 | struct nlattr **attrs = info->attrs; |
e44ef4e4 | 7614 | struct devlink *devlink; |
e44ef4e4 AL |
7615 | |
7616 | mutex_lock(&devlink_mutex); | |
7617 | devlink = devlink_get_from_attrs(sock_net(cb->skb->sk), attrs); | |
7618 | if (IS_ERR(devlink)) | |
7619 | goto unlock; | |
7620 | ||
7621 | reporter = devlink_health_reporter_get_from_attrs(devlink, attrs); | |
437ebfd9 | 7622 | devlink_put(devlink); |
e44ef4e4 | 7623 | mutex_unlock(&devlink_mutex); |
e44ef4e4 AL |
7624 | return reporter; |
7625 | unlock: | |
7626 | mutex_unlock(&devlink_mutex); | |
e44ef4e4 AL |
7627 | return NULL; |
7628 | } | |
7629 | ||
97ff3bd3 VG |
7630 | void |
7631 | devlink_health_reporter_state_update(struct devlink_health_reporter *reporter, | |
7632 | enum devlink_health_reporter_state state) | |
7633 | { | |
7634 | if (WARN_ON(state != DEVLINK_HEALTH_REPORTER_STATE_HEALTHY && | |
7635 | state != DEVLINK_HEALTH_REPORTER_STATE_ERROR)) | |
7636 | return; | |
7637 | ||
7638 | if (reporter->health_state == state) | |
7639 | return; | |
7640 | ||
7641 | reporter->health_state = state; | |
7642 | trace_devlink_health_reporter_state_update(reporter->devlink, | |
7643 | reporter->ops->name, state); | |
7644 | devlink_recover_notify(reporter, DEVLINK_CMD_HEALTH_REPORTER_RECOVER); | |
7645 | } | |
7646 | EXPORT_SYMBOL_GPL(devlink_health_reporter_state_update); | |
7647 | ||
7afe335a EBE |
7648 | static int devlink_nl_cmd_health_reporter_get_doit(struct sk_buff *skb, |
7649 | struct genl_info *info) | |
7650 | { | |
7651 | struct devlink *devlink = info->user_ptr[0]; | |
7652 | struct devlink_health_reporter *reporter; | |
7653 | struct sk_buff *msg; | |
7654 | int err; | |
7655 | ||
7656 | reporter = devlink_health_reporter_get_from_info(devlink, info); | |
7657 | if (!reporter) | |
7658 | return -EINVAL; | |
7659 | ||
7660 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
b587bdaf MS |
7661 | if (!msg) { |
7662 | err = -ENOMEM; | |
7663 | goto out; | |
7664 | } | |
7afe335a | 7665 | |
7ca973dc | 7666 | err = devlink_nl_health_reporter_fill(msg, reporter, |
7afe335a EBE |
7667 | DEVLINK_CMD_HEALTH_REPORTER_GET, |
7668 | info->snd_portid, info->snd_seq, | |
7669 | 0); | |
7670 | if (err) { | |
7671 | nlmsg_free(msg); | |
b587bdaf | 7672 | goto out; |
7afe335a EBE |
7673 | } |
7674 | ||
b587bdaf MS |
7675 | err = genlmsg_reply(msg, info); |
7676 | out: | |
7677 | devlink_health_reporter_put(reporter); | |
7678 | return err; | |
7afe335a EBE |
7679 | } |
7680 | ||
7681 | static int | |
7682 | devlink_nl_cmd_health_reporter_get_dumpit(struct sk_buff *msg, | |
7683 | struct netlink_callback *cb) | |
7684 | { | |
7685 | struct devlink_health_reporter *reporter; | |
f4f54166 | 7686 | struct devlink_port *port; |
7afe335a EBE |
7687 | struct devlink *devlink; |
7688 | int start = cb->args[0]; | |
11a861d7 | 7689 | unsigned long index; |
7afe335a EBE |
7690 | int idx = 0; |
7691 | int err; | |
7692 | ||
7693 | mutex_lock(&devlink_mutex); | |
294c4f57 | 7694 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
b587bdaf | 7695 | mutex_lock(&devlink->reporters_lock); |
7afe335a EBE |
7696 | list_for_each_entry(reporter, &devlink->reporter_list, |
7697 | list) { | |
7698 | if (idx < start) { | |
7699 | idx++; | |
7700 | continue; | |
7701 | } | |
7ca973dc LR |
7702 | err = devlink_nl_health_reporter_fill( |
7703 | msg, reporter, DEVLINK_CMD_HEALTH_REPORTER_GET, | |
7704 | NETLINK_CB(cb->skb).portid, cb->nlh->nlmsg_seq, | |
7705 | NLM_F_MULTI); | |
7afe335a | 7706 | if (err) { |
b587bdaf | 7707 | mutex_unlock(&devlink->reporters_lock); |
437ebfd9 | 7708 | devlink_put(devlink); |
7afe335a EBE |
7709 | goto out; |
7710 | } | |
7711 | idx++; | |
7712 | } | |
b587bdaf | 7713 | mutex_unlock(&devlink->reporters_lock); |
437ebfd9 | 7714 | devlink_put(devlink); |
7afe335a | 7715 | } |
f4f54166 | 7716 | |
294c4f57 | 7717 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
7715023a | 7718 | devl_lock(devlink); |
f4f54166 VT |
7719 | list_for_each_entry(port, &devlink->port_list, list) { |
7720 | mutex_lock(&port->reporters_lock); | |
7721 | list_for_each_entry(reporter, &port->reporter_list, list) { | |
7722 | if (idx < start) { | |
7723 | idx++; | |
7724 | continue; | |
7725 | } | |
7ca973dc LR |
7726 | err = devlink_nl_health_reporter_fill( |
7727 | msg, reporter, | |
7728 | DEVLINK_CMD_HEALTH_REPORTER_GET, | |
7729 | NETLINK_CB(cb->skb).portid, | |
7730 | cb->nlh->nlmsg_seq, NLM_F_MULTI); | |
f4f54166 VT |
7731 | if (err) { |
7732 | mutex_unlock(&port->reporters_lock); | |
7715023a | 7733 | devl_unlock(devlink); |
437ebfd9 | 7734 | devlink_put(devlink); |
f4f54166 VT |
7735 | goto out; |
7736 | } | |
7737 | idx++; | |
7738 | } | |
7739 | mutex_unlock(&port->reporters_lock); | |
7740 | } | |
7715023a | 7741 | devl_unlock(devlink); |
437ebfd9 | 7742 | devlink_put(devlink); |
f4f54166 | 7743 | } |
7afe335a EBE |
7744 | out: |
7745 | mutex_unlock(&devlink_mutex); | |
7746 | ||
7747 | cb->args[0] = idx; | |
7748 | return msg->len; | |
7749 | } | |
7750 | ||
a1e55ec0 EBE |
7751 | static int |
7752 | devlink_nl_cmd_health_reporter_set_doit(struct sk_buff *skb, | |
7753 | struct genl_info *info) | |
7754 | { | |
7755 | struct devlink *devlink = info->user_ptr[0]; | |
7756 | struct devlink_health_reporter *reporter; | |
b587bdaf | 7757 | int err; |
a1e55ec0 EBE |
7758 | |
7759 | reporter = devlink_health_reporter_get_from_info(devlink, info); | |
7760 | if (!reporter) | |
7761 | return -EINVAL; | |
7762 | ||
7763 | if (!reporter->ops->recover && | |
7764 | (info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_GRACEFUL_PERIOD] || | |
b587bdaf MS |
7765 | info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_AUTO_RECOVER])) { |
7766 | err = -EOPNOTSUPP; | |
7767 | goto out; | |
7768 | } | |
48bb52c8 EBE |
7769 | if (!reporter->ops->dump && |
7770 | info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_AUTO_DUMP]) { | |
7771 | err = -EOPNOTSUPP; | |
7772 | goto out; | |
7773 | } | |
a1e55ec0 EBE |
7774 | |
7775 | if (info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_GRACEFUL_PERIOD]) | |
7776 | reporter->graceful_period = | |
7777 | nla_get_u64(info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_GRACEFUL_PERIOD]); | |
7778 | ||
7779 | if (info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_AUTO_RECOVER]) | |
7780 | reporter->auto_recover = | |
7781 | nla_get_u8(info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_AUTO_RECOVER]); | |
7782 | ||
48bb52c8 EBE |
7783 | if (info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_AUTO_DUMP]) |
7784 | reporter->auto_dump = | |
7785 | nla_get_u8(info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_AUTO_DUMP]); | |
7786 | ||
b587bdaf | 7787 | devlink_health_reporter_put(reporter); |
a1e55ec0 | 7788 | return 0; |
b587bdaf MS |
7789 | out: |
7790 | devlink_health_reporter_put(reporter); | |
7791 | return err; | |
a1e55ec0 EBE |
7792 | } |
7793 | ||
20a0943a EBE |
7794 | static int devlink_nl_cmd_health_reporter_recover_doit(struct sk_buff *skb, |
7795 | struct genl_info *info) | |
7796 | { | |
7797 | struct devlink *devlink = info->user_ptr[0]; | |
7798 | struct devlink_health_reporter *reporter; | |
b587bdaf | 7799 | int err; |
20a0943a EBE |
7800 | |
7801 | reporter = devlink_health_reporter_get_from_info(devlink, info); | |
7802 | if (!reporter) | |
7803 | return -EINVAL; | |
7804 | ||
e7a98105 | 7805 | err = devlink_health_reporter_recover(reporter, NULL, info->extack); |
b587bdaf MS |
7806 | |
7807 | devlink_health_reporter_put(reporter); | |
7808 | return err; | |
20a0943a EBE |
7809 | } |
7810 | ||
fca42a27 EBE |
7811 | static int devlink_nl_cmd_health_reporter_diagnose_doit(struct sk_buff *skb, |
7812 | struct genl_info *info) | |
7813 | { | |
7814 | struct devlink *devlink = info->user_ptr[0]; | |
7815 | struct devlink_health_reporter *reporter; | |
7816 | struct devlink_fmsg *fmsg; | |
7817 | int err; | |
7818 | ||
7819 | reporter = devlink_health_reporter_get_from_info(devlink, info); | |
7820 | if (!reporter) | |
7821 | return -EINVAL; | |
7822 | ||
b587bdaf MS |
7823 | if (!reporter->ops->diagnose) { |
7824 | devlink_health_reporter_put(reporter); | |
fca42a27 | 7825 | return -EOPNOTSUPP; |
b587bdaf | 7826 | } |
fca42a27 EBE |
7827 | |
7828 | fmsg = devlink_fmsg_alloc(); | |
b587bdaf MS |
7829 | if (!fmsg) { |
7830 | devlink_health_reporter_put(reporter); | |
fca42a27 | 7831 | return -ENOMEM; |
b587bdaf | 7832 | } |
fca42a27 EBE |
7833 | |
7834 | err = devlink_fmsg_obj_nest_start(fmsg); | |
7835 | if (err) | |
7836 | goto out; | |
7837 | ||
e7a98105 | 7838 | err = reporter->ops->diagnose(reporter, fmsg, info->extack); |
fca42a27 EBE |
7839 | if (err) |
7840 | goto out; | |
7841 | ||
7842 | err = devlink_fmsg_obj_nest_end(fmsg); | |
7843 | if (err) | |
7844 | goto out; | |
7845 | ||
7846 | err = devlink_fmsg_snd(fmsg, info, | |
7847 | DEVLINK_CMD_HEALTH_REPORTER_DIAGNOSE, 0); | |
7848 | ||
7849 | out: | |
7850 | devlink_fmsg_free(fmsg); | |
b587bdaf | 7851 | devlink_health_reporter_put(reporter); |
fca42a27 EBE |
7852 | return err; |
7853 | } | |
7854 | ||
e44ef4e4 AL |
7855 | static int |
7856 | devlink_nl_cmd_health_reporter_dump_get_dumpit(struct sk_buff *skb, | |
7857 | struct netlink_callback *cb) | |
35455e23 | 7858 | { |
35455e23 | 7859 | struct devlink_health_reporter *reporter; |
e44ef4e4 | 7860 | u64 start = cb->args[0]; |
35455e23 EBE |
7861 | int err; |
7862 | ||
e44ef4e4 | 7863 | reporter = devlink_health_reporter_get_from_cb(cb); |
35455e23 EBE |
7864 | if (!reporter) |
7865 | return -EINVAL; | |
7866 | ||
b587bdaf | 7867 | if (!reporter->ops->dump) { |
e44ef4e4 AL |
7868 | err = -EOPNOTSUPP; |
7869 | goto out; | |
b587bdaf | 7870 | } |
35455e23 | 7871 | mutex_lock(&reporter->dump_lock); |
e44ef4e4 | 7872 | if (!start) { |
e7a98105 | 7873 | err = devlink_health_do_dump(reporter, NULL, cb->extack); |
e44ef4e4 AL |
7874 | if (err) |
7875 | goto unlock; | |
7876 | cb->args[1] = reporter->dump_ts; | |
7877 | } | |
7878 | if (!reporter->dump_fmsg || cb->args[1] != reporter->dump_ts) { | |
7879 | NL_SET_ERR_MSG_MOD(cb->extack, "Dump trampled, please retry"); | |
7880 | err = -EAGAIN; | |
7881 | goto unlock; | |
7882 | } | |
35455e23 | 7883 | |
e44ef4e4 AL |
7884 | err = devlink_fmsg_dumpit(reporter->dump_fmsg, skb, cb, |
7885 | DEVLINK_CMD_HEALTH_REPORTER_DUMP_GET); | |
7886 | unlock: | |
35455e23 | 7887 | mutex_unlock(&reporter->dump_lock); |
e44ef4e4 | 7888 | out: |
b587bdaf | 7889 | devlink_health_reporter_put(reporter); |
35455e23 EBE |
7890 | return err; |
7891 | } | |
7892 | ||
7893 | static int | |
7894 | devlink_nl_cmd_health_reporter_dump_clear_doit(struct sk_buff *skb, | |
7895 | struct genl_info *info) | |
7896 | { | |
7897 | struct devlink *devlink = info->user_ptr[0]; | |
7898 | struct devlink_health_reporter *reporter; | |
7899 | ||
7900 | reporter = devlink_health_reporter_get_from_info(devlink, info); | |
7901 | if (!reporter) | |
7902 | return -EINVAL; | |
7903 | ||
b587bdaf MS |
7904 | if (!reporter->ops->dump) { |
7905 | devlink_health_reporter_put(reporter); | |
35455e23 | 7906 | return -EOPNOTSUPP; |
b587bdaf | 7907 | } |
35455e23 EBE |
7908 | |
7909 | mutex_lock(&reporter->dump_lock); | |
7910 | devlink_health_dump_clear(reporter); | |
7911 | mutex_unlock(&reporter->dump_lock); | |
b587bdaf | 7912 | devlink_health_reporter_put(reporter); |
35455e23 EBE |
7913 | return 0; |
7914 | } | |
7915 | ||
e2ce94dc JP |
7916 | static int devlink_nl_cmd_health_reporter_test_doit(struct sk_buff *skb, |
7917 | struct genl_info *info) | |
7918 | { | |
7919 | struct devlink *devlink = info->user_ptr[0]; | |
7920 | struct devlink_health_reporter *reporter; | |
7921 | int err; | |
7922 | ||
7923 | reporter = devlink_health_reporter_get_from_info(devlink, info); | |
7924 | if (!reporter) | |
7925 | return -EINVAL; | |
7926 | ||
7927 | if (!reporter->ops->test) { | |
7928 | devlink_health_reporter_put(reporter); | |
7929 | return -EOPNOTSUPP; | |
7930 | } | |
7931 | ||
7932 | err = reporter->ops->test(reporter, info->extack); | |
7933 | ||
7934 | devlink_health_reporter_put(reporter); | |
7935 | return err; | |
7936 | } | |
7937 | ||
0f420b6c | 7938 | struct devlink_stats { |
958751e0 ED |
7939 | u64_stats_t rx_bytes; |
7940 | u64_stats_t rx_packets; | |
0f420b6c IS |
7941 | struct u64_stats_sync syncp; |
7942 | }; | |
7943 | ||
1e8c6619 IS |
7944 | /** |
7945 | * struct devlink_trap_policer_item - Packet trap policer attributes. | |
7946 | * @policer: Immutable packet trap policer attributes. | |
7947 | * @rate: Rate in packets / sec. | |
7948 | * @burst: Burst size in packets. | |
7949 | * @list: trap_policer_list member. | |
7950 | * | |
7951 | * Describes packet trap policer attributes. Created by devlink during trap | |
7952 | * policer registration. | |
7953 | */ | |
7954 | struct devlink_trap_policer_item { | |
7955 | const struct devlink_trap_policer *policer; | |
7956 | u64 rate; | |
7957 | u64 burst; | |
7958 | struct list_head list; | |
7959 | }; | |
7960 | ||
0f420b6c IS |
7961 | /** |
7962 | * struct devlink_trap_group_item - Packet trap group attributes. | |
7963 | * @group: Immutable packet trap group attributes. | |
f9f54392 | 7964 | * @policer_item: Associated policer item. Can be NULL. |
0f420b6c IS |
7965 | * @list: trap_group_list member. |
7966 | * @stats: Trap group statistics. | |
7967 | * | |
7968 | * Describes packet trap group attributes. Created by devlink during trap | |
a09b37fc | 7969 | * group registration. |
0f420b6c IS |
7970 | */ |
7971 | struct devlink_trap_group_item { | |
7972 | const struct devlink_trap_group *group; | |
f9f54392 | 7973 | struct devlink_trap_policer_item *policer_item; |
0f420b6c IS |
7974 | struct list_head list; |
7975 | struct devlink_stats __percpu *stats; | |
7976 | }; | |
7977 | ||
7978 | /** | |
7979 | * struct devlink_trap_item - Packet trap attributes. | |
7980 | * @trap: Immutable packet trap attributes. | |
7981 | * @group_item: Associated group item. | |
7982 | * @list: trap_list member. | |
7983 | * @action: Trap action. | |
7984 | * @stats: Trap statistics. | |
7985 | * @priv: Driver private information. | |
7986 | * | |
7987 | * Describes both mutable and immutable packet trap attributes. Created by | |
7988 | * devlink during trap registration and used for all trap related operations. | |
7989 | */ | |
7990 | struct devlink_trap_item { | |
7991 | const struct devlink_trap *trap; | |
7992 | struct devlink_trap_group_item *group_item; | |
7993 | struct list_head list; | |
7994 | enum devlink_trap_action action; | |
7995 | struct devlink_stats __percpu *stats; | |
7996 | void *priv; | |
7997 | }; | |
7998 | ||
1e8c6619 IS |
7999 | static struct devlink_trap_policer_item * |
8000 | devlink_trap_policer_item_lookup(struct devlink *devlink, u32 id) | |
8001 | { | |
8002 | struct devlink_trap_policer_item *policer_item; | |
8003 | ||
8004 | list_for_each_entry(policer_item, &devlink->trap_policer_list, list) { | |
8005 | if (policer_item->policer->id == id) | |
8006 | return policer_item; | |
8007 | } | |
8008 | ||
8009 | return NULL; | |
8010 | } | |
8011 | ||
0f420b6c IS |
8012 | static struct devlink_trap_item * |
8013 | devlink_trap_item_lookup(struct devlink *devlink, const char *name) | |
8014 | { | |
8015 | struct devlink_trap_item *trap_item; | |
8016 | ||
8017 | list_for_each_entry(trap_item, &devlink->trap_list, list) { | |
8018 | if (!strcmp(trap_item->trap->name, name)) | |
8019 | return trap_item; | |
8020 | } | |
8021 | ||
8022 | return NULL; | |
8023 | } | |
8024 | ||
8025 | static struct devlink_trap_item * | |
8026 | devlink_trap_item_get_from_info(struct devlink *devlink, | |
8027 | struct genl_info *info) | |
8028 | { | |
8029 | struct nlattr *attr; | |
8030 | ||
8031 | if (!info->attrs[DEVLINK_ATTR_TRAP_NAME]) | |
8032 | return NULL; | |
8033 | attr = info->attrs[DEVLINK_ATTR_TRAP_NAME]; | |
8034 | ||
8035 | return devlink_trap_item_lookup(devlink, nla_data(attr)); | |
8036 | } | |
8037 | ||
8038 | static int | |
8039 | devlink_trap_action_get_from_info(struct genl_info *info, | |
8040 | enum devlink_trap_action *p_trap_action) | |
8041 | { | |
8042 | u8 val; | |
8043 | ||
8044 | val = nla_get_u8(info->attrs[DEVLINK_ATTR_TRAP_ACTION]); | |
8045 | switch (val) { | |
df561f66 GS |
8046 | case DEVLINK_TRAP_ACTION_DROP: |
8047 | case DEVLINK_TRAP_ACTION_TRAP: | |
9eefeabe | 8048 | case DEVLINK_TRAP_ACTION_MIRROR: |
0f420b6c IS |
8049 | *p_trap_action = val; |
8050 | break; | |
8051 | default: | |
8052 | return -EINVAL; | |
8053 | } | |
8054 | ||
8055 | return 0; | |
8056 | } | |
8057 | ||
8058 | static int devlink_trap_metadata_put(struct sk_buff *msg, | |
8059 | const struct devlink_trap *trap) | |
8060 | { | |
8061 | struct nlattr *attr; | |
8062 | ||
8063 | attr = nla_nest_start(msg, DEVLINK_ATTR_TRAP_METADATA); | |
8064 | if (!attr) | |
8065 | return -EMSGSIZE; | |
8066 | ||
8067 | if ((trap->metadata_cap & DEVLINK_TRAP_METADATA_TYPE_F_IN_PORT) && | |
8068 | nla_put_flag(msg, DEVLINK_ATTR_TRAP_METADATA_TYPE_IN_PORT)) | |
8069 | goto nla_put_failure; | |
85b0589e JP |
8070 | if ((trap->metadata_cap & DEVLINK_TRAP_METADATA_TYPE_F_FA_COOKIE) && |
8071 | nla_put_flag(msg, DEVLINK_ATTR_TRAP_METADATA_TYPE_FA_COOKIE)) | |
8072 | goto nla_put_failure; | |
0f420b6c IS |
8073 | |
8074 | nla_nest_end(msg, attr); | |
8075 | ||
8076 | return 0; | |
8077 | ||
8078 | nla_put_failure: | |
8079 | nla_nest_cancel(msg, attr); | |
8080 | return -EMSGSIZE; | |
8081 | } | |
8082 | ||
8083 | static void devlink_trap_stats_read(struct devlink_stats __percpu *trap_stats, | |
8084 | struct devlink_stats *stats) | |
8085 | { | |
8086 | int i; | |
8087 | ||
8088 | memset(stats, 0, sizeof(*stats)); | |
8089 | for_each_possible_cpu(i) { | |
8090 | struct devlink_stats *cpu_stats; | |
8091 | u64 rx_packets, rx_bytes; | |
8092 | unsigned int start; | |
8093 | ||
8094 | cpu_stats = per_cpu_ptr(trap_stats, i); | |
8095 | do { | |
8096 | start = u64_stats_fetch_begin_irq(&cpu_stats->syncp); | |
958751e0 ED |
8097 | rx_packets = u64_stats_read(&cpu_stats->rx_packets); |
8098 | rx_bytes = u64_stats_read(&cpu_stats->rx_bytes); | |
0f420b6c IS |
8099 | } while (u64_stats_fetch_retry_irq(&cpu_stats->syncp, start)); |
8100 | ||
958751e0 ED |
8101 | u64_stats_add(&stats->rx_packets, rx_packets); |
8102 | u64_stats_add(&stats->rx_bytes, rx_bytes); | |
0f420b6c IS |
8103 | } |
8104 | } | |
8105 | ||
ddee9dbc OM |
8106 | static int |
8107 | devlink_trap_group_stats_put(struct sk_buff *msg, | |
8108 | struct devlink_stats __percpu *trap_stats) | |
0f420b6c IS |
8109 | { |
8110 | struct devlink_stats stats; | |
8111 | struct nlattr *attr; | |
8112 | ||
8113 | devlink_trap_stats_read(trap_stats, &stats); | |
8114 | ||
8115 | attr = nla_nest_start(msg, DEVLINK_ATTR_STATS); | |
8116 | if (!attr) | |
8117 | return -EMSGSIZE; | |
8118 | ||
8119 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_STATS_RX_PACKETS, | |
958751e0 ED |
8120 | u64_stats_read(&stats.rx_packets), |
8121 | DEVLINK_ATTR_PAD)) | |
0f420b6c IS |
8122 | goto nla_put_failure; |
8123 | ||
8124 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_STATS_RX_BYTES, | |
958751e0 ED |
8125 | u64_stats_read(&stats.rx_bytes), |
8126 | DEVLINK_ATTR_PAD)) | |
0f420b6c IS |
8127 | goto nla_put_failure; |
8128 | ||
8129 | nla_nest_end(msg, attr); | |
8130 | ||
8131 | return 0; | |
8132 | ||
8133 | nla_put_failure: | |
8134 | nla_nest_cancel(msg, attr); | |
8135 | return -EMSGSIZE; | |
8136 | } | |
8137 | ||
ddee9dbc OM |
8138 | static int devlink_trap_stats_put(struct sk_buff *msg, struct devlink *devlink, |
8139 | const struct devlink_trap_item *trap_item) | |
8140 | { | |
8141 | struct devlink_stats stats; | |
8142 | struct nlattr *attr; | |
8143 | u64 drops = 0; | |
8144 | int err; | |
8145 | ||
8146 | if (devlink->ops->trap_drop_counter_get) { | |
8147 | err = devlink->ops->trap_drop_counter_get(devlink, | |
8148 | trap_item->trap, | |
8149 | &drops); | |
8150 | if (err) | |
8151 | return err; | |
8152 | } | |
8153 | ||
8154 | devlink_trap_stats_read(trap_item->stats, &stats); | |
8155 | ||
8156 | attr = nla_nest_start(msg, DEVLINK_ATTR_STATS); | |
8157 | if (!attr) | |
8158 | return -EMSGSIZE; | |
8159 | ||
8160 | if (devlink->ops->trap_drop_counter_get && | |
8161 | nla_put_u64_64bit(msg, DEVLINK_ATTR_STATS_RX_DROPPED, drops, | |
8162 | DEVLINK_ATTR_PAD)) | |
8163 | goto nla_put_failure; | |
8164 | ||
8165 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_STATS_RX_PACKETS, | |
958751e0 ED |
8166 | u64_stats_read(&stats.rx_packets), |
8167 | DEVLINK_ATTR_PAD)) | |
ddee9dbc OM |
8168 | goto nla_put_failure; |
8169 | ||
8170 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_STATS_RX_BYTES, | |
958751e0 ED |
8171 | u64_stats_read(&stats.rx_bytes), |
8172 | DEVLINK_ATTR_PAD)) | |
ddee9dbc OM |
8173 | goto nla_put_failure; |
8174 | ||
8175 | nla_nest_end(msg, attr); | |
8176 | ||
8177 | return 0; | |
8178 | ||
8179 | nla_put_failure: | |
8180 | nla_nest_cancel(msg, attr); | |
8181 | return -EMSGSIZE; | |
8182 | } | |
8183 | ||
0f420b6c IS |
8184 | static int devlink_nl_trap_fill(struct sk_buff *msg, struct devlink *devlink, |
8185 | const struct devlink_trap_item *trap_item, | |
8186 | enum devlink_command cmd, u32 portid, u32 seq, | |
8187 | int flags) | |
8188 | { | |
8189 | struct devlink_trap_group_item *group_item = trap_item->group_item; | |
8190 | void *hdr; | |
8191 | int err; | |
8192 | ||
8193 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
8194 | if (!hdr) | |
8195 | return -EMSGSIZE; | |
8196 | ||
8197 | if (devlink_nl_put_handle(msg, devlink)) | |
8198 | goto nla_put_failure; | |
8199 | ||
8200 | if (nla_put_string(msg, DEVLINK_ATTR_TRAP_GROUP_NAME, | |
8201 | group_item->group->name)) | |
8202 | goto nla_put_failure; | |
8203 | ||
8204 | if (nla_put_string(msg, DEVLINK_ATTR_TRAP_NAME, trap_item->trap->name)) | |
8205 | goto nla_put_failure; | |
8206 | ||
8207 | if (nla_put_u8(msg, DEVLINK_ATTR_TRAP_TYPE, trap_item->trap->type)) | |
8208 | goto nla_put_failure; | |
8209 | ||
8210 | if (trap_item->trap->generic && | |
8211 | nla_put_flag(msg, DEVLINK_ATTR_TRAP_GENERIC)) | |
8212 | goto nla_put_failure; | |
8213 | ||
8214 | if (nla_put_u8(msg, DEVLINK_ATTR_TRAP_ACTION, trap_item->action)) | |
8215 | goto nla_put_failure; | |
8216 | ||
8217 | err = devlink_trap_metadata_put(msg, trap_item->trap); | |
8218 | if (err) | |
8219 | goto nla_put_failure; | |
8220 | ||
ddee9dbc | 8221 | err = devlink_trap_stats_put(msg, devlink, trap_item); |
0f420b6c IS |
8222 | if (err) |
8223 | goto nla_put_failure; | |
8224 | ||
8225 | genlmsg_end(msg, hdr); | |
8226 | ||
8227 | return 0; | |
8228 | ||
8229 | nla_put_failure: | |
8230 | genlmsg_cancel(msg, hdr); | |
8231 | return -EMSGSIZE; | |
8232 | } | |
8233 | ||
8234 | static int devlink_nl_cmd_trap_get_doit(struct sk_buff *skb, | |
8235 | struct genl_info *info) | |
8236 | { | |
8237 | struct netlink_ext_ack *extack = info->extack; | |
8238 | struct devlink *devlink = info->user_ptr[0]; | |
8239 | struct devlink_trap_item *trap_item; | |
8240 | struct sk_buff *msg; | |
8241 | int err; | |
8242 | ||
8243 | if (list_empty(&devlink->trap_list)) | |
8244 | return -EOPNOTSUPP; | |
8245 | ||
8246 | trap_item = devlink_trap_item_get_from_info(devlink, info); | |
8247 | if (!trap_item) { | |
8248 | NL_SET_ERR_MSG_MOD(extack, "Device did not register this trap"); | |
8249 | return -ENOENT; | |
8250 | } | |
8251 | ||
8252 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
8253 | if (!msg) | |
8254 | return -ENOMEM; | |
8255 | ||
8256 | err = devlink_nl_trap_fill(msg, devlink, trap_item, | |
8257 | DEVLINK_CMD_TRAP_NEW, info->snd_portid, | |
8258 | info->snd_seq, 0); | |
8259 | if (err) | |
8260 | goto err_trap_fill; | |
8261 | ||
8262 | return genlmsg_reply(msg, info); | |
8263 | ||
8264 | err_trap_fill: | |
8265 | nlmsg_free(msg); | |
8266 | return err; | |
8267 | } | |
8268 | ||
8269 | static int devlink_nl_cmd_trap_get_dumpit(struct sk_buff *msg, | |
8270 | struct netlink_callback *cb) | |
8271 | { | |
8272 | struct devlink_trap_item *trap_item; | |
8273 | struct devlink *devlink; | |
8274 | int start = cb->args[0]; | |
11a861d7 | 8275 | unsigned long index; |
0f420b6c IS |
8276 | int idx = 0; |
8277 | int err; | |
8278 | ||
8279 | mutex_lock(&devlink_mutex); | |
294c4f57 | 8280 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
7715023a | 8281 | devl_lock(devlink); |
0f420b6c IS |
8282 | list_for_each_entry(trap_item, &devlink->trap_list, list) { |
8283 | if (idx < start) { | |
8284 | idx++; | |
8285 | continue; | |
8286 | } | |
8287 | err = devlink_nl_trap_fill(msg, devlink, trap_item, | |
8288 | DEVLINK_CMD_TRAP_NEW, | |
8289 | NETLINK_CB(cb->skb).portid, | |
8290 | cb->nlh->nlmsg_seq, | |
8291 | NLM_F_MULTI); | |
8292 | if (err) { | |
7715023a | 8293 | devl_unlock(devlink); |
437ebfd9 | 8294 | devlink_put(devlink); |
0f420b6c IS |
8295 | goto out; |
8296 | } | |
8297 | idx++; | |
8298 | } | |
7715023a | 8299 | devl_unlock(devlink); |
437ebfd9 | 8300 | devlink_put(devlink); |
0f420b6c IS |
8301 | } |
8302 | out: | |
8303 | mutex_unlock(&devlink_mutex); | |
8304 | ||
8305 | cb->args[0] = idx; | |
8306 | return msg->len; | |
8307 | } | |
8308 | ||
8309 | static int __devlink_trap_action_set(struct devlink *devlink, | |
8310 | struct devlink_trap_item *trap_item, | |
8311 | enum devlink_trap_action trap_action, | |
8312 | struct netlink_ext_ack *extack) | |
8313 | { | |
8314 | int err; | |
8315 | ||
8316 | if (trap_item->action != trap_action && | |
8317 | trap_item->trap->type != DEVLINK_TRAP_TYPE_DROP) { | |
8318 | NL_SET_ERR_MSG_MOD(extack, "Cannot change action of non-drop traps. Skipping"); | |
8319 | return 0; | |
8320 | } | |
8321 | ||
8322 | err = devlink->ops->trap_action_set(devlink, trap_item->trap, | |
c88e11e0 | 8323 | trap_action, extack); |
0f420b6c IS |
8324 | if (err) |
8325 | return err; | |
8326 | ||
8327 | trap_item->action = trap_action; | |
8328 | ||
8329 | return 0; | |
8330 | } | |
8331 | ||
8332 | static int devlink_trap_action_set(struct devlink *devlink, | |
8333 | struct devlink_trap_item *trap_item, | |
8334 | struct genl_info *info) | |
8335 | { | |
8336 | enum devlink_trap_action trap_action; | |
8337 | int err; | |
8338 | ||
8339 | if (!info->attrs[DEVLINK_ATTR_TRAP_ACTION]) | |
8340 | return 0; | |
8341 | ||
8342 | err = devlink_trap_action_get_from_info(info, &trap_action); | |
8343 | if (err) { | |
8344 | NL_SET_ERR_MSG_MOD(info->extack, "Invalid trap action"); | |
8345 | return -EINVAL; | |
8346 | } | |
8347 | ||
8348 | return __devlink_trap_action_set(devlink, trap_item, trap_action, | |
8349 | info->extack); | |
8350 | } | |
8351 | ||
8352 | static int devlink_nl_cmd_trap_set_doit(struct sk_buff *skb, | |
8353 | struct genl_info *info) | |
8354 | { | |
8355 | struct netlink_ext_ack *extack = info->extack; | |
8356 | struct devlink *devlink = info->user_ptr[0]; | |
8357 | struct devlink_trap_item *trap_item; | |
0f420b6c IS |
8358 | |
8359 | if (list_empty(&devlink->trap_list)) | |
8360 | return -EOPNOTSUPP; | |
8361 | ||
8362 | trap_item = devlink_trap_item_get_from_info(devlink, info); | |
8363 | if (!trap_item) { | |
8364 | NL_SET_ERR_MSG_MOD(extack, "Device did not register this trap"); | |
8365 | return -ENOENT; | |
8366 | } | |
8367 | ||
8daa76a5 | 8368 | return devlink_trap_action_set(devlink, trap_item, info); |
0f420b6c IS |
8369 | } |
8370 | ||
8371 | static struct devlink_trap_group_item * | |
8372 | devlink_trap_group_item_lookup(struct devlink *devlink, const char *name) | |
8373 | { | |
8374 | struct devlink_trap_group_item *group_item; | |
8375 | ||
8376 | list_for_each_entry(group_item, &devlink->trap_group_list, list) { | |
8377 | if (!strcmp(group_item->group->name, name)) | |
8378 | return group_item; | |
8379 | } | |
8380 | ||
8381 | return NULL; | |
8382 | } | |
8383 | ||
107f1678 IS |
8384 | static struct devlink_trap_group_item * |
8385 | devlink_trap_group_item_lookup_by_id(struct devlink *devlink, u16 id) | |
8386 | { | |
8387 | struct devlink_trap_group_item *group_item; | |
8388 | ||
8389 | list_for_each_entry(group_item, &devlink->trap_group_list, list) { | |
8390 | if (group_item->group->id == id) | |
8391 | return group_item; | |
8392 | } | |
8393 | ||
8394 | return NULL; | |
8395 | } | |
8396 | ||
0f420b6c IS |
8397 | static struct devlink_trap_group_item * |
8398 | devlink_trap_group_item_get_from_info(struct devlink *devlink, | |
8399 | struct genl_info *info) | |
8400 | { | |
8401 | char *name; | |
8402 | ||
8403 | if (!info->attrs[DEVLINK_ATTR_TRAP_GROUP_NAME]) | |
8404 | return NULL; | |
8405 | name = nla_data(info->attrs[DEVLINK_ATTR_TRAP_GROUP_NAME]); | |
8406 | ||
8407 | return devlink_trap_group_item_lookup(devlink, name); | |
8408 | } | |
8409 | ||
8410 | static int | |
8411 | devlink_nl_trap_group_fill(struct sk_buff *msg, struct devlink *devlink, | |
8412 | const struct devlink_trap_group_item *group_item, | |
8413 | enum devlink_command cmd, u32 portid, u32 seq, | |
8414 | int flags) | |
8415 | { | |
8416 | void *hdr; | |
8417 | int err; | |
8418 | ||
8419 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
8420 | if (!hdr) | |
8421 | return -EMSGSIZE; | |
8422 | ||
8423 | if (devlink_nl_put_handle(msg, devlink)) | |
8424 | goto nla_put_failure; | |
8425 | ||
8426 | if (nla_put_string(msg, DEVLINK_ATTR_TRAP_GROUP_NAME, | |
8427 | group_item->group->name)) | |
8428 | goto nla_put_failure; | |
8429 | ||
8430 | if (group_item->group->generic && | |
8431 | nla_put_flag(msg, DEVLINK_ATTR_TRAP_GENERIC)) | |
8432 | goto nla_put_failure; | |
8433 | ||
f9f54392 IS |
8434 | if (group_item->policer_item && |
8435 | nla_put_u32(msg, DEVLINK_ATTR_TRAP_POLICER_ID, | |
8436 | group_item->policer_item->policer->id)) | |
8437 | goto nla_put_failure; | |
8438 | ||
ddee9dbc | 8439 | err = devlink_trap_group_stats_put(msg, group_item->stats); |
0f420b6c IS |
8440 | if (err) |
8441 | goto nla_put_failure; | |
8442 | ||
8443 | genlmsg_end(msg, hdr); | |
8444 | ||
8445 | return 0; | |
8446 | ||
8447 | nla_put_failure: | |
8448 | genlmsg_cancel(msg, hdr); | |
8449 | return -EMSGSIZE; | |
8450 | } | |
8451 | ||
8452 | static int devlink_nl_cmd_trap_group_get_doit(struct sk_buff *skb, | |
8453 | struct genl_info *info) | |
8454 | { | |
8455 | struct netlink_ext_ack *extack = info->extack; | |
8456 | struct devlink *devlink = info->user_ptr[0]; | |
8457 | struct devlink_trap_group_item *group_item; | |
8458 | struct sk_buff *msg; | |
8459 | int err; | |
8460 | ||
8461 | if (list_empty(&devlink->trap_group_list)) | |
8462 | return -EOPNOTSUPP; | |
8463 | ||
8464 | group_item = devlink_trap_group_item_get_from_info(devlink, info); | |
8465 | if (!group_item) { | |
8466 | NL_SET_ERR_MSG_MOD(extack, "Device did not register this trap group"); | |
8467 | return -ENOENT; | |
8468 | } | |
8469 | ||
8470 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
8471 | if (!msg) | |
8472 | return -ENOMEM; | |
8473 | ||
8474 | err = devlink_nl_trap_group_fill(msg, devlink, group_item, | |
8475 | DEVLINK_CMD_TRAP_GROUP_NEW, | |
8476 | info->snd_portid, info->snd_seq, 0); | |
8477 | if (err) | |
8478 | goto err_trap_group_fill; | |
8479 | ||
8480 | return genlmsg_reply(msg, info); | |
8481 | ||
8482 | err_trap_group_fill: | |
8483 | nlmsg_free(msg); | |
8484 | return err; | |
8485 | } | |
8486 | ||
8487 | static int devlink_nl_cmd_trap_group_get_dumpit(struct sk_buff *msg, | |
8488 | struct netlink_callback *cb) | |
8489 | { | |
8490 | enum devlink_command cmd = DEVLINK_CMD_TRAP_GROUP_NEW; | |
8491 | struct devlink_trap_group_item *group_item; | |
8492 | u32 portid = NETLINK_CB(cb->skb).portid; | |
8493 | struct devlink *devlink; | |
8494 | int start = cb->args[0]; | |
11a861d7 | 8495 | unsigned long index; |
0f420b6c IS |
8496 | int idx = 0; |
8497 | int err; | |
8498 | ||
8499 | mutex_lock(&devlink_mutex); | |
294c4f57 | 8500 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
7715023a | 8501 | devl_lock(devlink); |
0f420b6c IS |
8502 | list_for_each_entry(group_item, &devlink->trap_group_list, |
8503 | list) { | |
8504 | if (idx < start) { | |
8505 | idx++; | |
8506 | continue; | |
8507 | } | |
8508 | err = devlink_nl_trap_group_fill(msg, devlink, | |
8509 | group_item, cmd, | |
8510 | portid, | |
8511 | cb->nlh->nlmsg_seq, | |
8512 | NLM_F_MULTI); | |
8513 | if (err) { | |
7715023a | 8514 | devl_unlock(devlink); |
437ebfd9 | 8515 | devlink_put(devlink); |
0f420b6c IS |
8516 | goto out; |
8517 | } | |
8518 | idx++; | |
8519 | } | |
7715023a | 8520 | devl_unlock(devlink); |
437ebfd9 | 8521 | devlink_put(devlink); |
0f420b6c IS |
8522 | } |
8523 | out: | |
8524 | mutex_unlock(&devlink_mutex); | |
8525 | ||
8526 | cb->args[0] = idx; | |
8527 | return msg->len; | |
8528 | } | |
8529 | ||
8530 | static int | |
8531 | __devlink_trap_group_action_set(struct devlink *devlink, | |
8532 | struct devlink_trap_group_item *group_item, | |
8533 | enum devlink_trap_action trap_action, | |
8534 | struct netlink_ext_ack *extack) | |
8535 | { | |
8536 | const char *group_name = group_item->group->name; | |
8537 | struct devlink_trap_item *trap_item; | |
8538 | int err; | |
8539 | ||
c50bf2be IC |
8540 | if (devlink->ops->trap_group_action_set) { |
8541 | err = devlink->ops->trap_group_action_set(devlink, group_item->group, | |
8542 | trap_action, extack); | |
8543 | if (err) | |
8544 | return err; | |
8545 | ||
8546 | list_for_each_entry(trap_item, &devlink->trap_list, list) { | |
8547 | if (strcmp(trap_item->group_item->group->name, group_name)) | |
8548 | continue; | |
8549 | if (trap_item->action != trap_action && | |
8550 | trap_item->trap->type != DEVLINK_TRAP_TYPE_DROP) | |
8551 | continue; | |
8552 | trap_item->action = trap_action; | |
8553 | } | |
8554 | ||
8555 | return 0; | |
8556 | } | |
8557 | ||
0f420b6c | 8558 | list_for_each_entry(trap_item, &devlink->trap_list, list) { |
107f1678 | 8559 | if (strcmp(trap_item->group_item->group->name, group_name)) |
0f420b6c IS |
8560 | continue; |
8561 | err = __devlink_trap_action_set(devlink, trap_item, | |
8562 | trap_action, extack); | |
8563 | if (err) | |
8564 | return err; | |
8565 | } | |
8566 | ||
8567 | return 0; | |
8568 | } | |
8569 | ||
8570 | static int | |
8571 | devlink_trap_group_action_set(struct devlink *devlink, | |
8572 | struct devlink_trap_group_item *group_item, | |
c064875a | 8573 | struct genl_info *info, bool *p_modified) |
0f420b6c IS |
8574 | { |
8575 | enum devlink_trap_action trap_action; | |
8576 | int err; | |
8577 | ||
8578 | if (!info->attrs[DEVLINK_ATTR_TRAP_ACTION]) | |
8579 | return 0; | |
8580 | ||
8581 | err = devlink_trap_action_get_from_info(info, &trap_action); | |
8582 | if (err) { | |
8583 | NL_SET_ERR_MSG_MOD(info->extack, "Invalid trap action"); | |
8584 | return -EINVAL; | |
8585 | } | |
8586 | ||
8587 | err = __devlink_trap_group_action_set(devlink, group_item, trap_action, | |
8588 | info->extack); | |
8589 | if (err) | |
8590 | return err; | |
8591 | ||
c064875a IS |
8592 | *p_modified = true; |
8593 | ||
8594 | return 0; | |
8595 | } | |
8596 | ||
8597 | static int devlink_trap_group_set(struct devlink *devlink, | |
8598 | struct devlink_trap_group_item *group_item, | |
8599 | struct genl_info *info) | |
8600 | { | |
8601 | struct devlink_trap_policer_item *policer_item; | |
8602 | struct netlink_ext_ack *extack = info->extack; | |
8603 | const struct devlink_trap_policer *policer; | |
8604 | struct nlattr **attrs = info->attrs; | |
8605 | int err; | |
8606 | ||
8607 | if (!attrs[DEVLINK_ATTR_TRAP_POLICER_ID]) | |
8608 | return 0; | |
8609 | ||
8610 | if (!devlink->ops->trap_group_set) | |
8611 | return -EOPNOTSUPP; | |
8612 | ||
8613 | policer_item = group_item->policer_item; | |
8614 | if (attrs[DEVLINK_ATTR_TRAP_POLICER_ID]) { | |
8615 | u32 policer_id; | |
8616 | ||
8617 | policer_id = nla_get_u32(attrs[DEVLINK_ATTR_TRAP_POLICER_ID]); | |
8618 | policer_item = devlink_trap_policer_item_lookup(devlink, | |
8619 | policer_id); | |
8620 | if (policer_id && !policer_item) { | |
8621 | NL_SET_ERR_MSG_MOD(extack, "Device did not register this trap policer"); | |
8622 | return -ENOENT; | |
8623 | } | |
8624 | } | |
8625 | policer = policer_item ? policer_item->policer : NULL; | |
8626 | ||
c88e11e0 IS |
8627 | err = devlink->ops->trap_group_set(devlink, group_item->group, policer, |
8628 | extack); | |
c064875a IS |
8629 | if (err) |
8630 | return err; | |
8631 | ||
8632 | group_item->policer_item = policer_item; | |
8633 | ||
0f420b6c IS |
8634 | return 0; |
8635 | } | |
8636 | ||
8637 | static int devlink_nl_cmd_trap_group_set_doit(struct sk_buff *skb, | |
8638 | struct genl_info *info) | |
8639 | { | |
8640 | struct netlink_ext_ack *extack = info->extack; | |
8641 | struct devlink *devlink = info->user_ptr[0]; | |
8642 | struct devlink_trap_group_item *group_item; | |
c064875a | 8643 | bool modified = false; |
0f420b6c IS |
8644 | int err; |
8645 | ||
8646 | if (list_empty(&devlink->trap_group_list)) | |
8647 | return -EOPNOTSUPP; | |
8648 | ||
8649 | group_item = devlink_trap_group_item_get_from_info(devlink, info); | |
8650 | if (!group_item) { | |
8651 | NL_SET_ERR_MSG_MOD(extack, "Device did not register this trap group"); | |
8652 | return -ENOENT; | |
8653 | } | |
8654 | ||
c064875a IS |
8655 | err = devlink_trap_group_action_set(devlink, group_item, info, |
8656 | &modified); | |
0f420b6c IS |
8657 | if (err) |
8658 | return err; | |
8659 | ||
c064875a IS |
8660 | err = devlink_trap_group_set(devlink, group_item, info); |
8661 | if (err) | |
8662 | goto err_trap_group_set; | |
8663 | ||
0f420b6c | 8664 | return 0; |
c064875a IS |
8665 | |
8666 | err_trap_group_set: | |
8667 | if (modified) | |
8668 | NL_SET_ERR_MSG_MOD(extack, "Trap group set failed, but some changes were committed already"); | |
8669 | return err; | |
0f420b6c IS |
8670 | } |
8671 | ||
1e8c6619 IS |
8672 | static struct devlink_trap_policer_item * |
8673 | devlink_trap_policer_item_get_from_info(struct devlink *devlink, | |
8674 | struct genl_info *info) | |
8675 | { | |
8676 | u32 id; | |
8677 | ||
8678 | if (!info->attrs[DEVLINK_ATTR_TRAP_POLICER_ID]) | |
8679 | return NULL; | |
8680 | id = nla_get_u32(info->attrs[DEVLINK_ATTR_TRAP_POLICER_ID]); | |
8681 | ||
8682 | return devlink_trap_policer_item_lookup(devlink, id); | |
8683 | } | |
8684 | ||
8685 | static int | |
8686 | devlink_trap_policer_stats_put(struct sk_buff *msg, struct devlink *devlink, | |
8687 | const struct devlink_trap_policer *policer) | |
8688 | { | |
8689 | struct nlattr *attr; | |
8690 | u64 drops; | |
8691 | int err; | |
8692 | ||
8693 | if (!devlink->ops->trap_policer_counter_get) | |
8694 | return 0; | |
8695 | ||
8696 | err = devlink->ops->trap_policer_counter_get(devlink, policer, &drops); | |
8697 | if (err) | |
8698 | return err; | |
8699 | ||
8700 | attr = nla_nest_start(msg, DEVLINK_ATTR_STATS); | |
8701 | if (!attr) | |
8702 | return -EMSGSIZE; | |
8703 | ||
8704 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_STATS_RX_DROPPED, drops, | |
8705 | DEVLINK_ATTR_PAD)) | |
8706 | goto nla_put_failure; | |
8707 | ||
8708 | nla_nest_end(msg, attr); | |
8709 | ||
8710 | return 0; | |
8711 | ||
8712 | nla_put_failure: | |
8713 | nla_nest_cancel(msg, attr); | |
8714 | return -EMSGSIZE; | |
8715 | } | |
8716 | ||
8717 | static int | |
8718 | devlink_nl_trap_policer_fill(struct sk_buff *msg, struct devlink *devlink, | |
8719 | const struct devlink_trap_policer_item *policer_item, | |
8720 | enum devlink_command cmd, u32 portid, u32 seq, | |
8721 | int flags) | |
8722 | { | |
8723 | void *hdr; | |
8724 | int err; | |
8725 | ||
8726 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
8727 | if (!hdr) | |
8728 | return -EMSGSIZE; | |
8729 | ||
8730 | if (devlink_nl_put_handle(msg, devlink)) | |
8731 | goto nla_put_failure; | |
8732 | ||
8733 | if (nla_put_u32(msg, DEVLINK_ATTR_TRAP_POLICER_ID, | |
8734 | policer_item->policer->id)) | |
8735 | goto nla_put_failure; | |
8736 | ||
8737 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_TRAP_POLICER_RATE, | |
8738 | policer_item->rate, DEVLINK_ATTR_PAD)) | |
8739 | goto nla_put_failure; | |
8740 | ||
8741 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_TRAP_POLICER_BURST, | |
8742 | policer_item->burst, DEVLINK_ATTR_PAD)) | |
8743 | goto nla_put_failure; | |
8744 | ||
8745 | err = devlink_trap_policer_stats_put(msg, devlink, | |
8746 | policer_item->policer); | |
8747 | if (err) | |
8748 | goto nla_put_failure; | |
8749 | ||
8750 | genlmsg_end(msg, hdr); | |
8751 | ||
8752 | return 0; | |
8753 | ||
8754 | nla_put_failure: | |
8755 | genlmsg_cancel(msg, hdr); | |
8756 | return -EMSGSIZE; | |
8757 | } | |
8758 | ||
8759 | static int devlink_nl_cmd_trap_policer_get_doit(struct sk_buff *skb, | |
8760 | struct genl_info *info) | |
8761 | { | |
8762 | struct devlink_trap_policer_item *policer_item; | |
8763 | struct netlink_ext_ack *extack = info->extack; | |
8764 | struct devlink *devlink = info->user_ptr[0]; | |
8765 | struct sk_buff *msg; | |
8766 | int err; | |
8767 | ||
8768 | if (list_empty(&devlink->trap_policer_list)) | |
8769 | return -EOPNOTSUPP; | |
8770 | ||
8771 | policer_item = devlink_trap_policer_item_get_from_info(devlink, info); | |
8772 | if (!policer_item) { | |
8773 | NL_SET_ERR_MSG_MOD(extack, "Device did not register this trap policer"); | |
8774 | return -ENOENT; | |
8775 | } | |
8776 | ||
8777 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
8778 | if (!msg) | |
8779 | return -ENOMEM; | |
8780 | ||
8781 | err = devlink_nl_trap_policer_fill(msg, devlink, policer_item, | |
8782 | DEVLINK_CMD_TRAP_POLICER_NEW, | |
8783 | info->snd_portid, info->snd_seq, 0); | |
8784 | if (err) | |
8785 | goto err_trap_policer_fill; | |
8786 | ||
8787 | return genlmsg_reply(msg, info); | |
8788 | ||
8789 | err_trap_policer_fill: | |
8790 | nlmsg_free(msg); | |
8791 | return err; | |
8792 | } | |
8793 | ||
8794 | static int devlink_nl_cmd_trap_policer_get_dumpit(struct sk_buff *msg, | |
8795 | struct netlink_callback *cb) | |
8796 | { | |
8797 | enum devlink_command cmd = DEVLINK_CMD_TRAP_POLICER_NEW; | |
8798 | struct devlink_trap_policer_item *policer_item; | |
8799 | u32 portid = NETLINK_CB(cb->skb).portid; | |
8800 | struct devlink *devlink; | |
8801 | int start = cb->args[0]; | |
11a861d7 | 8802 | unsigned long index; |
1e8c6619 IS |
8803 | int idx = 0; |
8804 | int err; | |
8805 | ||
8806 | mutex_lock(&devlink_mutex); | |
294c4f57 | 8807 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
7715023a | 8808 | devl_lock(devlink); |
1e8c6619 IS |
8809 | list_for_each_entry(policer_item, &devlink->trap_policer_list, |
8810 | list) { | |
8811 | if (idx < start) { | |
8812 | idx++; | |
8813 | continue; | |
8814 | } | |
8815 | err = devlink_nl_trap_policer_fill(msg, devlink, | |
8816 | policer_item, cmd, | |
8817 | portid, | |
8818 | cb->nlh->nlmsg_seq, | |
8819 | NLM_F_MULTI); | |
8820 | if (err) { | |
7715023a | 8821 | devl_unlock(devlink); |
437ebfd9 | 8822 | devlink_put(devlink); |
1e8c6619 IS |
8823 | goto out; |
8824 | } | |
8825 | idx++; | |
8826 | } | |
7715023a | 8827 | devl_unlock(devlink); |
437ebfd9 | 8828 | devlink_put(devlink); |
1e8c6619 IS |
8829 | } |
8830 | out: | |
8831 | mutex_unlock(&devlink_mutex); | |
8832 | ||
8833 | cb->args[0] = idx; | |
8834 | return msg->len; | |
8835 | } | |
8836 | ||
8837 | static int | |
8838 | devlink_trap_policer_set(struct devlink *devlink, | |
8839 | struct devlink_trap_policer_item *policer_item, | |
8840 | struct genl_info *info) | |
8841 | { | |
8842 | struct netlink_ext_ack *extack = info->extack; | |
8843 | struct nlattr **attrs = info->attrs; | |
8844 | u64 rate, burst; | |
8845 | int err; | |
8846 | ||
8847 | rate = policer_item->rate; | |
8848 | burst = policer_item->burst; | |
8849 | ||
8850 | if (attrs[DEVLINK_ATTR_TRAP_POLICER_RATE]) | |
8851 | rate = nla_get_u64(attrs[DEVLINK_ATTR_TRAP_POLICER_RATE]); | |
8852 | ||
8853 | if (attrs[DEVLINK_ATTR_TRAP_POLICER_BURST]) | |
8854 | burst = nla_get_u64(attrs[DEVLINK_ATTR_TRAP_POLICER_BURST]); | |
8855 | ||
8856 | if (rate < policer_item->policer->min_rate) { | |
8857 | NL_SET_ERR_MSG_MOD(extack, "Policer rate lower than limit"); | |
8858 | return -EINVAL; | |
8859 | } | |
8860 | ||
8861 | if (rate > policer_item->policer->max_rate) { | |
8862 | NL_SET_ERR_MSG_MOD(extack, "Policer rate higher than limit"); | |
8863 | return -EINVAL; | |
8864 | } | |
8865 | ||
8866 | if (burst < policer_item->policer->min_burst) { | |
8867 | NL_SET_ERR_MSG_MOD(extack, "Policer burst size lower than limit"); | |
8868 | return -EINVAL; | |
8869 | } | |
8870 | ||
8871 | if (burst > policer_item->policer->max_burst) { | |
8872 | NL_SET_ERR_MSG_MOD(extack, "Policer burst size higher than limit"); | |
8873 | return -EINVAL; | |
8874 | } | |
8875 | ||
8876 | err = devlink->ops->trap_policer_set(devlink, policer_item->policer, | |
8877 | rate, burst, info->extack); | |
8878 | if (err) | |
8879 | return err; | |
8880 | ||
8881 | policer_item->rate = rate; | |
8882 | policer_item->burst = burst; | |
8883 | ||
8884 | return 0; | |
8885 | } | |
8886 | ||
8887 | static int devlink_nl_cmd_trap_policer_set_doit(struct sk_buff *skb, | |
8888 | struct genl_info *info) | |
8889 | { | |
8890 | struct devlink_trap_policer_item *policer_item; | |
8891 | struct netlink_ext_ack *extack = info->extack; | |
8892 | struct devlink *devlink = info->user_ptr[0]; | |
8893 | ||
8894 | if (list_empty(&devlink->trap_policer_list)) | |
8895 | return -EOPNOTSUPP; | |
8896 | ||
8897 | if (!devlink->ops->trap_policer_set) | |
8898 | return -EOPNOTSUPP; | |
8899 | ||
8900 | policer_item = devlink_trap_policer_item_get_from_info(devlink, info); | |
8901 | if (!policer_item) { | |
8902 | NL_SET_ERR_MSG_MOD(extack, "Device did not register this trap policer"); | |
8903 | return -ENOENT; | |
8904 | } | |
8905 | ||
8906 | return devlink_trap_policer_set(devlink, policer_item, info); | |
8907 | } | |
8908 | ||
bfcd3a46 | 8909 | static const struct nla_policy devlink_nl_policy[DEVLINK_ATTR_MAX + 1] = { |
1e8c6619 IS |
8910 | [DEVLINK_ATTR_UNSPEC] = { .strict_start_type = |
8911 | DEVLINK_ATTR_TRAP_POLICER_ID }, | |
bfcd3a46 JP |
8912 | [DEVLINK_ATTR_BUS_NAME] = { .type = NLA_NUL_STRING }, |
8913 | [DEVLINK_ATTR_DEV_NAME] = { .type = NLA_NUL_STRING }, | |
8914 | [DEVLINK_ATTR_PORT_INDEX] = { .type = NLA_U32 }, | |
c49a9440 PP |
8915 | [DEVLINK_ATTR_PORT_TYPE] = NLA_POLICY_RANGE(NLA_U16, DEVLINK_PORT_TYPE_AUTO, |
8916 | DEVLINK_PORT_TYPE_IB), | |
bfcd3a46 | 8917 | [DEVLINK_ATTR_PORT_SPLIT_COUNT] = { .type = NLA_U32 }, |
bf797471 JP |
8918 | [DEVLINK_ATTR_SB_INDEX] = { .type = NLA_U32 }, |
8919 | [DEVLINK_ATTR_SB_POOL_INDEX] = { .type = NLA_U16 }, | |
8920 | [DEVLINK_ATTR_SB_POOL_TYPE] = { .type = NLA_U8 }, | |
8921 | [DEVLINK_ATTR_SB_POOL_SIZE] = { .type = NLA_U32 }, | |
8922 | [DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE] = { .type = NLA_U8 }, | |
8923 | [DEVLINK_ATTR_SB_THRESHOLD] = { .type = NLA_U32 }, | |
8924 | [DEVLINK_ATTR_SB_TC_INDEX] = { .type = NLA_U16 }, | |
ba356c90 PP |
8925 | [DEVLINK_ATTR_ESWITCH_MODE] = NLA_POLICY_RANGE(NLA_U16, DEVLINK_ESWITCH_MODE_LEGACY, |
8926 | DEVLINK_ESWITCH_MODE_SWITCHDEV), | |
59bfde01 | 8927 | [DEVLINK_ATTR_ESWITCH_INLINE_MODE] = { .type = NLA_U8 }, |
f43e9b06 | 8928 | [DEVLINK_ATTR_ESWITCH_ENCAP_MODE] = { .type = NLA_U8 }, |
1555d204 AS |
8929 | [DEVLINK_ATTR_DPIPE_TABLE_NAME] = { .type = NLA_NUL_STRING }, |
8930 | [DEVLINK_ATTR_DPIPE_TABLE_COUNTERS_ENABLED] = { .type = NLA_U8 }, | |
d9f9b9a4 AS |
8931 | [DEVLINK_ATTR_RESOURCE_ID] = { .type = NLA_U64}, |
8932 | [DEVLINK_ATTR_RESOURCE_SIZE] = { .type = NLA_U64}, | |
e3b7ca18 MS |
8933 | [DEVLINK_ATTR_PARAM_NAME] = { .type = NLA_NUL_STRING }, |
8934 | [DEVLINK_ATTR_PARAM_TYPE] = { .type = NLA_U8 }, | |
8935 | [DEVLINK_ATTR_PARAM_VALUE_CMODE] = { .type = NLA_U8 }, | |
d8db7ea5 | 8936 | [DEVLINK_ATTR_REGION_NAME] = { .type = NLA_NUL_STRING }, |
866319bb | 8937 | [DEVLINK_ATTR_REGION_SNAPSHOT_ID] = { .type = NLA_U32 }, |
ff3b63b8 JK |
8938 | [DEVLINK_ATTR_REGION_CHUNK_ADDR] = { .type = NLA_U64 }, |
8939 | [DEVLINK_ATTR_REGION_CHUNK_LEN] = { .type = NLA_U64 }, | |
7afe335a | 8940 | [DEVLINK_ATTR_HEALTH_REPORTER_NAME] = { .type = NLA_NUL_STRING }, |
a1e55ec0 EBE |
8941 | [DEVLINK_ATTR_HEALTH_REPORTER_GRACEFUL_PERIOD] = { .type = NLA_U64 }, |
8942 | [DEVLINK_ATTR_HEALTH_REPORTER_AUTO_RECOVER] = { .type = NLA_U8 }, | |
76726ccb JK |
8943 | [DEVLINK_ATTR_FLASH_UPDATE_FILE_NAME] = { .type = NLA_NUL_STRING }, |
8944 | [DEVLINK_ATTR_FLASH_UPDATE_COMPONENT] = { .type = NLA_NUL_STRING }, | |
5d5b4128 JK |
8945 | [DEVLINK_ATTR_FLASH_UPDATE_OVERWRITE_MASK] = |
8946 | NLA_POLICY_BITFIELD32(DEVLINK_SUPPORTED_FLASH_OVERWRITE_SECTIONS), | |
0f420b6c IS |
8947 | [DEVLINK_ATTR_TRAP_NAME] = { .type = NLA_NUL_STRING }, |
8948 | [DEVLINK_ATTR_TRAP_ACTION] = { .type = NLA_U8 }, | |
8949 | [DEVLINK_ATTR_TRAP_GROUP_NAME] = { .type = NLA_NUL_STRING }, | |
070c63f2 JP |
8950 | [DEVLINK_ATTR_NETNS_PID] = { .type = NLA_U32 }, |
8951 | [DEVLINK_ATTR_NETNS_FD] = { .type = NLA_U32 }, | |
8952 | [DEVLINK_ATTR_NETNS_ID] = { .type = NLA_U32 }, | |
48bb52c8 | 8953 | [DEVLINK_ATTR_HEALTH_REPORTER_AUTO_DUMP] = { .type = NLA_U8 }, |
1e8c6619 IS |
8954 | [DEVLINK_ATTR_TRAP_POLICER_ID] = { .type = NLA_U32 }, |
8955 | [DEVLINK_ATTR_TRAP_POLICER_RATE] = { .type = NLA_U64 }, | |
8956 | [DEVLINK_ATTR_TRAP_POLICER_BURST] = { .type = NLA_U64 }, | |
a1e8ae90 | 8957 | [DEVLINK_ATTR_PORT_FUNCTION] = { .type = NLA_NESTED }, |
ccdf0721 MS |
8958 | [DEVLINK_ATTR_RELOAD_ACTION] = NLA_POLICY_RANGE(NLA_U8, DEVLINK_RELOAD_ACTION_DRIVER_REINIT, |
8959 | DEVLINK_RELOAD_ACTION_MAX), | |
dc64cc7c | 8960 | [DEVLINK_ATTR_RELOAD_LIMITS] = NLA_POLICY_BITFIELD32(DEVLINK_RELOAD_LIMITS_VALID_MASK), |
cd76dcd6 PP |
8961 | [DEVLINK_ATTR_PORT_FLAVOUR] = { .type = NLA_U16 }, |
8962 | [DEVLINK_ATTR_PORT_PCI_PF_NUMBER] = { .type = NLA_U16 }, | |
8963 | [DEVLINK_ATTR_PORT_PCI_SF_NUMBER] = { .type = NLA_U32 }, | |
8964 | [DEVLINK_ATTR_PORT_CONTROLLER_NUMBER] = { .type = NLA_U32 }, | |
4677efc4 | 8965 | [DEVLINK_ATTR_RATE_TYPE] = { .type = NLA_U16 }, |
1897db2e DL |
8966 | [DEVLINK_ATTR_RATE_TX_SHARE] = { .type = NLA_U64 }, |
8967 | [DEVLINK_ATTR_RATE_TX_MAX] = { .type = NLA_U64 }, | |
a8ecb93e | 8968 | [DEVLINK_ATTR_RATE_NODE_NAME] = { .type = NLA_NUL_STRING }, |
d7555984 | 8969 | [DEVLINK_ATTR_RATE_PARENT_NODE_NAME] = { .type = NLA_NUL_STRING }, |
c246f9b5 | 8970 | [DEVLINK_ATTR_LINECARD_INDEX] = { .type = NLA_U32 }, |
fcdc8ce2 | 8971 | [DEVLINK_ATTR_LINECARD_TYPE] = { .type = NLA_NUL_STRING }, |
bfcd3a46 JP |
8972 | }; |
8973 | ||
66a9b928 | 8974 | static const struct genl_small_ops devlink_nl_ops[] = { |
bfcd3a46 JP |
8975 | { |
8976 | .cmd = DEVLINK_CMD_GET, | |
ef6243ac | 8977 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bfcd3a46 JP |
8978 | .doit = devlink_nl_cmd_get_doit, |
8979 | .dumpit = devlink_nl_cmd_get_dumpit, | |
bfcd3a46 JP |
8980 | /* can be retrieved by unprivileged users */ |
8981 | }, | |
8982 | { | |
8983 | .cmd = DEVLINK_CMD_PORT_GET, | |
ef6243ac | 8984 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bfcd3a46 JP |
8985 | .doit = devlink_nl_cmd_port_get_doit, |
8986 | .dumpit = devlink_nl_cmd_port_get_dumpit, | |
bfcd3a46 JP |
8987 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, |
8988 | /* can be retrieved by unprivileged users */ | |
8989 | }, | |
8990 | { | |
8991 | .cmd = DEVLINK_CMD_PORT_SET, | |
ef6243ac | 8992 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bfcd3a46 | 8993 | .doit = devlink_nl_cmd_port_set_doit, |
bfcd3a46 JP |
8994 | .flags = GENL_ADMIN_PERM, |
8995 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, | |
8996 | }, | |
4677efc4 DL |
8997 | { |
8998 | .cmd = DEVLINK_CMD_RATE_GET, | |
8999 | .doit = devlink_nl_cmd_rate_get_doit, | |
9000 | .dumpit = devlink_nl_cmd_rate_get_dumpit, | |
9001 | .internal_flags = DEVLINK_NL_FLAG_NEED_RATE, | |
9002 | /* can be retrieved by unprivileged users */ | |
9003 | }, | |
1897db2e DL |
9004 | { |
9005 | .cmd = DEVLINK_CMD_RATE_SET, | |
9006 | .doit = devlink_nl_cmd_rate_set_doit, | |
9007 | .flags = GENL_ADMIN_PERM, | |
9008 | .internal_flags = DEVLINK_NL_FLAG_NEED_RATE, | |
9009 | }, | |
a8ecb93e DL |
9010 | { |
9011 | .cmd = DEVLINK_CMD_RATE_NEW, | |
9012 | .doit = devlink_nl_cmd_rate_new_doit, | |
9013 | .flags = GENL_ADMIN_PERM, | |
9014 | }, | |
9015 | { | |
9016 | .cmd = DEVLINK_CMD_RATE_DEL, | |
9017 | .doit = devlink_nl_cmd_rate_del_doit, | |
9018 | .flags = GENL_ADMIN_PERM, | |
9019 | .internal_flags = DEVLINK_NL_FLAG_NEED_RATE_NODE, | |
9020 | }, | |
bfcd3a46 JP |
9021 | { |
9022 | .cmd = DEVLINK_CMD_PORT_SPLIT, | |
ef6243ac | 9023 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bfcd3a46 | 9024 | .doit = devlink_nl_cmd_port_split_doit, |
bfcd3a46 | 9025 | .flags = GENL_ADMIN_PERM, |
706217c1 | 9026 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, |
bfcd3a46 JP |
9027 | }, |
9028 | { | |
9029 | .cmd = DEVLINK_CMD_PORT_UNSPLIT, | |
ef6243ac | 9030 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bfcd3a46 | 9031 | .doit = devlink_nl_cmd_port_unsplit_doit, |
bfcd3a46 | 9032 | .flags = GENL_ADMIN_PERM, |
706217c1 | 9033 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, |
bfcd3a46 | 9034 | }, |
cd76dcd6 PP |
9035 | { |
9036 | .cmd = DEVLINK_CMD_PORT_NEW, | |
9037 | .doit = devlink_nl_cmd_port_new_doit, | |
9038 | .flags = GENL_ADMIN_PERM, | |
cd76dcd6 PP |
9039 | }, |
9040 | { | |
9041 | .cmd = DEVLINK_CMD_PORT_DEL, | |
9042 | .doit = devlink_nl_cmd_port_del_doit, | |
9043 | .flags = GENL_ADMIN_PERM, | |
cd76dcd6 | 9044 | }, |
c246f9b5 JP |
9045 | { |
9046 | .cmd = DEVLINK_CMD_LINECARD_GET, | |
9047 | .doit = devlink_nl_cmd_linecard_get_doit, | |
9048 | .dumpit = devlink_nl_cmd_linecard_get_dumpit, | |
9049 | .internal_flags = DEVLINK_NL_FLAG_NEED_LINECARD, | |
9050 | /* can be retrieved by unprivileged users */ | |
9051 | }, | |
fcdc8ce2 JP |
9052 | { |
9053 | .cmd = DEVLINK_CMD_LINECARD_SET, | |
9054 | .doit = devlink_nl_cmd_linecard_set_doit, | |
9055 | .flags = GENL_ADMIN_PERM, | |
9056 | .internal_flags = DEVLINK_NL_FLAG_NEED_LINECARD, | |
9057 | }, | |
bf797471 JP |
9058 | { |
9059 | .cmd = DEVLINK_CMD_SB_GET, | |
ef6243ac | 9060 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bf797471 JP |
9061 | .doit = devlink_nl_cmd_sb_get_doit, |
9062 | .dumpit = devlink_nl_cmd_sb_get_dumpit, | |
bf797471 JP |
9063 | /* can be retrieved by unprivileged users */ |
9064 | }, | |
9065 | { | |
9066 | .cmd = DEVLINK_CMD_SB_POOL_GET, | |
ef6243ac | 9067 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bf797471 JP |
9068 | .doit = devlink_nl_cmd_sb_pool_get_doit, |
9069 | .dumpit = devlink_nl_cmd_sb_pool_get_dumpit, | |
bf797471 JP |
9070 | /* can be retrieved by unprivileged users */ |
9071 | }, | |
9072 | { | |
9073 | .cmd = DEVLINK_CMD_SB_POOL_SET, | |
ef6243ac | 9074 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bf797471 | 9075 | .doit = devlink_nl_cmd_sb_pool_set_doit, |
bf797471 | 9076 | .flags = GENL_ADMIN_PERM, |
bf797471 JP |
9077 | }, |
9078 | { | |
9079 | .cmd = DEVLINK_CMD_SB_PORT_POOL_GET, | |
ef6243ac | 9080 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bf797471 JP |
9081 | .doit = devlink_nl_cmd_sb_port_pool_get_doit, |
9082 | .dumpit = devlink_nl_cmd_sb_port_pool_get_dumpit, | |
637989b5 | 9083 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, |
bf797471 JP |
9084 | /* can be retrieved by unprivileged users */ |
9085 | }, | |
9086 | { | |
9087 | .cmd = DEVLINK_CMD_SB_PORT_POOL_SET, | |
ef6243ac | 9088 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bf797471 | 9089 | .doit = devlink_nl_cmd_sb_port_pool_set_doit, |
bf797471 | 9090 | .flags = GENL_ADMIN_PERM, |
637989b5 | 9091 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, |
bf797471 JP |
9092 | }, |
9093 | { | |
9094 | .cmd = DEVLINK_CMD_SB_TC_POOL_BIND_GET, | |
ef6243ac | 9095 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bf797471 JP |
9096 | .doit = devlink_nl_cmd_sb_tc_pool_bind_get_doit, |
9097 | .dumpit = devlink_nl_cmd_sb_tc_pool_bind_get_dumpit, | |
637989b5 | 9098 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, |
bf797471 JP |
9099 | /* can be retrieved by unprivileged users */ |
9100 | }, | |
9101 | { | |
9102 | .cmd = DEVLINK_CMD_SB_TC_POOL_BIND_SET, | |
ef6243ac | 9103 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bf797471 | 9104 | .doit = devlink_nl_cmd_sb_tc_pool_bind_set_doit, |
bf797471 | 9105 | .flags = GENL_ADMIN_PERM, |
637989b5 | 9106 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, |
bf797471 | 9107 | }, |
df38dafd JP |
9108 | { |
9109 | .cmd = DEVLINK_CMD_SB_OCC_SNAPSHOT, | |
ef6243ac | 9110 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
df38dafd | 9111 | .doit = devlink_nl_cmd_sb_occ_snapshot_doit, |
df38dafd | 9112 | .flags = GENL_ADMIN_PERM, |
df38dafd JP |
9113 | }, |
9114 | { | |
9115 | .cmd = DEVLINK_CMD_SB_OCC_MAX_CLEAR, | |
ef6243ac | 9116 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
df38dafd | 9117 | .doit = devlink_nl_cmd_sb_occ_max_clear_doit, |
df38dafd | 9118 | .flags = GENL_ADMIN_PERM, |
df38dafd | 9119 | }, |
08f4b591 | 9120 | { |
adf200f3 | 9121 | .cmd = DEVLINK_CMD_ESWITCH_GET, |
ef6243ac | 9122 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
adf200f3 | 9123 | .doit = devlink_nl_cmd_eswitch_get_doit, |
08f4b591 | 9124 | .flags = GENL_ADMIN_PERM, |
08f4b591 OG |
9125 | }, |
9126 | { | |
adf200f3 | 9127 | .cmd = DEVLINK_CMD_ESWITCH_SET, |
ef6243ac | 9128 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
adf200f3 | 9129 | .doit = devlink_nl_cmd_eswitch_set_doit, |
08f4b591 | 9130 | .flags = GENL_ADMIN_PERM, |
08f4b591 | 9131 | }, |
1555d204 AS |
9132 | { |
9133 | .cmd = DEVLINK_CMD_DPIPE_TABLE_GET, | |
ef6243ac | 9134 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
1555d204 | 9135 | .doit = devlink_nl_cmd_dpipe_table_get, |
67ae686b | 9136 | /* can be retrieved by unprivileged users */ |
1555d204 AS |
9137 | }, |
9138 | { | |
9139 | .cmd = DEVLINK_CMD_DPIPE_ENTRIES_GET, | |
ef6243ac | 9140 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
1555d204 | 9141 | .doit = devlink_nl_cmd_dpipe_entries_get, |
67ae686b | 9142 | /* can be retrieved by unprivileged users */ |
1555d204 AS |
9143 | }, |
9144 | { | |
9145 | .cmd = DEVLINK_CMD_DPIPE_HEADERS_GET, | |
ef6243ac | 9146 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
1555d204 | 9147 | .doit = devlink_nl_cmd_dpipe_headers_get, |
67ae686b | 9148 | /* can be retrieved by unprivileged users */ |
1555d204 AS |
9149 | }, |
9150 | { | |
9151 | .cmd = DEVLINK_CMD_DPIPE_TABLE_COUNTERS_SET, | |
ef6243ac | 9152 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
1555d204 | 9153 | .doit = devlink_nl_cmd_dpipe_table_counters_set, |
1555d204 | 9154 | .flags = GENL_ADMIN_PERM, |
1555d204 | 9155 | }, |
d9f9b9a4 AS |
9156 | { |
9157 | .cmd = DEVLINK_CMD_RESOURCE_SET, | |
ef6243ac | 9158 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
d9f9b9a4 | 9159 | .doit = devlink_nl_cmd_resource_set, |
d9f9b9a4 | 9160 | .flags = GENL_ADMIN_PERM, |
d9f9b9a4 AS |
9161 | }, |
9162 | { | |
9163 | .cmd = DEVLINK_CMD_RESOURCE_DUMP, | |
ef6243ac | 9164 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
d9f9b9a4 | 9165 | .doit = devlink_nl_cmd_resource_dump, |
67ae686b | 9166 | /* can be retrieved by unprivileged users */ |
d9f9b9a4 | 9167 | }, |
2d8dc5bb AS |
9168 | { |
9169 | .cmd = DEVLINK_CMD_RELOAD, | |
ef6243ac | 9170 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
2d8dc5bb | 9171 | .doit = devlink_nl_cmd_reload, |
2d8dc5bb | 9172 | .flags = GENL_ADMIN_PERM, |
637989b5 | 9173 | .internal_flags = DEVLINK_NL_FLAG_NO_LOCK, |
2d8dc5bb | 9174 | }, |
45f05def MS |
9175 | { |
9176 | .cmd = DEVLINK_CMD_PARAM_GET, | |
ef6243ac | 9177 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
45f05def MS |
9178 | .doit = devlink_nl_cmd_param_get_doit, |
9179 | .dumpit = devlink_nl_cmd_param_get_dumpit, | |
45f05def MS |
9180 | /* can be retrieved by unprivileged users */ |
9181 | }, | |
e3b7ca18 MS |
9182 | { |
9183 | .cmd = DEVLINK_CMD_PARAM_SET, | |
ef6243ac | 9184 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
e3b7ca18 | 9185 | .doit = devlink_nl_cmd_param_set_doit, |
e3b7ca18 | 9186 | .flags = GENL_ADMIN_PERM, |
e3b7ca18 | 9187 | }, |
f4601dee VV |
9188 | { |
9189 | .cmd = DEVLINK_CMD_PORT_PARAM_GET, | |
ef6243ac | 9190 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
f4601dee VV |
9191 | .doit = devlink_nl_cmd_port_param_get_doit, |
9192 | .dumpit = devlink_nl_cmd_port_param_get_dumpit, | |
f4601dee VV |
9193 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, |
9194 | /* can be retrieved by unprivileged users */ | |
9195 | }, | |
9c54873b VV |
9196 | { |
9197 | .cmd = DEVLINK_CMD_PORT_PARAM_SET, | |
ef6243ac | 9198 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
9c54873b | 9199 | .doit = devlink_nl_cmd_port_param_set_doit, |
9c54873b VV |
9200 | .flags = GENL_ADMIN_PERM, |
9201 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, | |
9202 | }, | |
d8db7ea5 AV |
9203 | { |
9204 | .cmd = DEVLINK_CMD_REGION_GET, | |
ef6243ac | 9205 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
d8db7ea5 AV |
9206 | .doit = devlink_nl_cmd_region_get_doit, |
9207 | .dumpit = devlink_nl_cmd_region_get_dumpit, | |
d8db7ea5 | 9208 | .flags = GENL_ADMIN_PERM, |
d8db7ea5 | 9209 | }, |
b9a17abf JK |
9210 | { |
9211 | .cmd = DEVLINK_CMD_REGION_NEW, | |
9212 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, | |
9213 | .doit = devlink_nl_cmd_region_new, | |
9214 | .flags = GENL_ADMIN_PERM, | |
b9a17abf | 9215 | }, |
866319bb AV |
9216 | { |
9217 | .cmd = DEVLINK_CMD_REGION_DEL, | |
ef6243ac | 9218 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
866319bb | 9219 | .doit = devlink_nl_cmd_region_del, |
866319bb | 9220 | .flags = GENL_ADMIN_PERM, |
866319bb | 9221 | }, |
4e54795a AV |
9222 | { |
9223 | .cmd = DEVLINK_CMD_REGION_READ, | |
ee85da53 JP |
9224 | .validate = GENL_DONT_VALIDATE_STRICT | |
9225 | GENL_DONT_VALIDATE_DUMP_STRICT, | |
4e54795a | 9226 | .dumpit = devlink_nl_cmd_region_read_dumpit, |
4e54795a | 9227 | .flags = GENL_ADMIN_PERM, |
4e54795a | 9228 | }, |
f9cf2288 JK |
9229 | { |
9230 | .cmd = DEVLINK_CMD_INFO_GET, | |
ef6243ac | 9231 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
f9cf2288 JK |
9232 | .doit = devlink_nl_cmd_info_get_doit, |
9233 | .dumpit = devlink_nl_cmd_info_get_dumpit, | |
f9cf2288 JK |
9234 | /* can be retrieved by unprivileged users */ |
9235 | }, | |
7afe335a EBE |
9236 | { |
9237 | .cmd = DEVLINK_CMD_HEALTH_REPORTER_GET, | |
ef6243ac | 9238 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
7afe335a EBE |
9239 | .doit = devlink_nl_cmd_health_reporter_get_doit, |
9240 | .dumpit = devlink_nl_cmd_health_reporter_get_dumpit, | |
f4f54166 | 9241 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT | |
b587bdaf | 9242 | DEVLINK_NL_FLAG_NO_LOCK, |
7afe335a EBE |
9243 | /* can be retrieved by unprivileged users */ |
9244 | }, | |
a1e55ec0 EBE |
9245 | { |
9246 | .cmd = DEVLINK_CMD_HEALTH_REPORTER_SET, | |
ef6243ac | 9247 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
a1e55ec0 | 9248 | .doit = devlink_nl_cmd_health_reporter_set_doit, |
a1e55ec0 | 9249 | .flags = GENL_ADMIN_PERM, |
f4f54166 | 9250 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT | |
b587bdaf | 9251 | DEVLINK_NL_FLAG_NO_LOCK, |
a1e55ec0 | 9252 | }, |
20a0943a EBE |
9253 | { |
9254 | .cmd = DEVLINK_CMD_HEALTH_REPORTER_RECOVER, | |
ef6243ac | 9255 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
20a0943a | 9256 | .doit = devlink_nl_cmd_health_reporter_recover_doit, |
20a0943a | 9257 | .flags = GENL_ADMIN_PERM, |
f4f54166 | 9258 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT | |
b587bdaf | 9259 | DEVLINK_NL_FLAG_NO_LOCK, |
20a0943a | 9260 | }, |
fca42a27 EBE |
9261 | { |
9262 | .cmd = DEVLINK_CMD_HEALTH_REPORTER_DIAGNOSE, | |
ef6243ac | 9263 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
fca42a27 | 9264 | .doit = devlink_nl_cmd_health_reporter_diagnose_doit, |
fca42a27 | 9265 | .flags = GENL_ADMIN_PERM, |
f4f54166 | 9266 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT | |
b587bdaf | 9267 | DEVLINK_NL_FLAG_NO_LOCK, |
fca42a27 | 9268 | }, |
35455e23 EBE |
9269 | { |
9270 | .cmd = DEVLINK_CMD_HEALTH_REPORTER_DUMP_GET, | |
82a843de JP |
9271 | .validate = GENL_DONT_VALIDATE_STRICT | |
9272 | GENL_DONT_VALIDATE_DUMP_STRICT, | |
e44ef4e4 | 9273 | .dumpit = devlink_nl_cmd_health_reporter_dump_get_dumpit, |
35455e23 | 9274 | .flags = GENL_ADMIN_PERM, |
35455e23 EBE |
9275 | }, |
9276 | { | |
9277 | .cmd = DEVLINK_CMD_HEALTH_REPORTER_DUMP_CLEAR, | |
ef6243ac | 9278 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
35455e23 | 9279 | .doit = devlink_nl_cmd_health_reporter_dump_clear_doit, |
35455e23 | 9280 | .flags = GENL_ADMIN_PERM, |
f4f54166 | 9281 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT | |
35455e23 EBE |
9282 | DEVLINK_NL_FLAG_NO_LOCK, |
9283 | }, | |
e2ce94dc JP |
9284 | { |
9285 | .cmd = DEVLINK_CMD_HEALTH_REPORTER_TEST, | |
9286 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, | |
9287 | .doit = devlink_nl_cmd_health_reporter_test_doit, | |
9288 | .flags = GENL_ADMIN_PERM, | |
9289 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT | | |
9290 | DEVLINK_NL_FLAG_NO_LOCK, | |
9291 | }, | |
76726ccb JK |
9292 | { |
9293 | .cmd = DEVLINK_CMD_FLASH_UPDATE, | |
ef6243ac | 9294 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
76726ccb | 9295 | .doit = devlink_nl_cmd_flash_update, |
76726ccb | 9296 | .flags = GENL_ADMIN_PERM, |
76726ccb | 9297 | }, |
0f420b6c IS |
9298 | { |
9299 | .cmd = DEVLINK_CMD_TRAP_GET, | |
9300 | .doit = devlink_nl_cmd_trap_get_doit, | |
9301 | .dumpit = devlink_nl_cmd_trap_get_dumpit, | |
0f420b6c IS |
9302 | /* can be retrieved by unprivileged users */ |
9303 | }, | |
9304 | { | |
9305 | .cmd = DEVLINK_CMD_TRAP_SET, | |
9306 | .doit = devlink_nl_cmd_trap_set_doit, | |
9307 | .flags = GENL_ADMIN_PERM, | |
0f420b6c IS |
9308 | }, |
9309 | { | |
9310 | .cmd = DEVLINK_CMD_TRAP_GROUP_GET, | |
9311 | .doit = devlink_nl_cmd_trap_group_get_doit, | |
9312 | .dumpit = devlink_nl_cmd_trap_group_get_dumpit, | |
0f420b6c IS |
9313 | /* can be retrieved by unprivileged users */ |
9314 | }, | |
9315 | { | |
9316 | .cmd = DEVLINK_CMD_TRAP_GROUP_SET, | |
9317 | .doit = devlink_nl_cmd_trap_group_set_doit, | |
9318 | .flags = GENL_ADMIN_PERM, | |
0f420b6c | 9319 | }, |
1e8c6619 IS |
9320 | { |
9321 | .cmd = DEVLINK_CMD_TRAP_POLICER_GET, | |
9322 | .doit = devlink_nl_cmd_trap_policer_get_doit, | |
9323 | .dumpit = devlink_nl_cmd_trap_policer_get_dumpit, | |
1e8c6619 IS |
9324 | /* can be retrieved by unprivileged users */ |
9325 | }, | |
9326 | { | |
9327 | .cmd = DEVLINK_CMD_TRAP_POLICER_SET, | |
9328 | .doit = devlink_nl_cmd_trap_policer_set_doit, | |
9329 | .flags = GENL_ADMIN_PERM, | |
1e8c6619 | 9330 | }, |
bfcd3a46 JP |
9331 | }; |
9332 | ||
56989f6d | 9333 | static struct genl_family devlink_nl_family __ro_after_init = { |
489111e5 JB |
9334 | .name = DEVLINK_GENL_NAME, |
9335 | .version = DEVLINK_GENL_VERSION, | |
9336 | .maxattr = DEVLINK_ATTR_MAX, | |
3b0f31f2 | 9337 | .policy = devlink_nl_policy, |
489111e5 JB |
9338 | .netnsok = true, |
9339 | .pre_doit = devlink_nl_pre_doit, | |
9340 | .post_doit = devlink_nl_post_doit, | |
9341 | .module = THIS_MODULE, | |
66a9b928 JK |
9342 | .small_ops = devlink_nl_ops, |
9343 | .n_small_ops = ARRAY_SIZE(devlink_nl_ops), | |
489111e5 JB |
9344 | .mcgrps = devlink_nl_mcgrps, |
9345 | .n_mcgrps = ARRAY_SIZE(devlink_nl_mcgrps), | |
9346 | }; | |
9347 | ||
ccdf0721 MS |
9348 | static bool devlink_reload_actions_valid(const struct devlink_ops *ops) |
9349 | { | |
dc64cc7c MS |
9350 | const struct devlink_reload_combination *comb; |
9351 | int i; | |
9352 | ||
ccdf0721 MS |
9353 | if (!devlink_reload_supported(ops)) { |
9354 | if (WARN_ON(ops->reload_actions)) | |
9355 | return false; | |
9356 | return true; | |
9357 | } | |
9358 | ||
9359 | if (WARN_ON(!ops->reload_actions || | |
9360 | ops->reload_actions & BIT(DEVLINK_RELOAD_ACTION_UNSPEC) || | |
9361 | ops->reload_actions >= BIT(__DEVLINK_RELOAD_ACTION_MAX))) | |
9362 | return false; | |
dc64cc7c MS |
9363 | |
9364 | if (WARN_ON(ops->reload_limits & BIT(DEVLINK_RELOAD_LIMIT_UNSPEC) || | |
9365 | ops->reload_limits >= BIT(__DEVLINK_RELOAD_LIMIT_MAX))) | |
9366 | return false; | |
9367 | ||
9368 | for (i = 0; i < ARRAY_SIZE(devlink_reload_invalid_combinations); i++) { | |
9369 | comb = &devlink_reload_invalid_combinations[i]; | |
9370 | if (ops->reload_actions == BIT(comb->action) && | |
9371 | ops->reload_limits == BIT(comb->limit)) | |
9372 | return false; | |
9373 | } | |
ccdf0721 MS |
9374 | return true; |
9375 | } | |
9376 | ||
bd032e35 LR |
9377 | /** |
9378 | * devlink_set_features - Set devlink supported features | |
9379 | * | |
9380 | * @devlink: devlink | |
9381 | * @features: devlink support features | |
9382 | * | |
9383 | * This interface allows us to set reload ops separatelly from | |
9384 | * the devlink_alloc. | |
9385 | */ | |
9386 | void devlink_set_features(struct devlink *devlink, u64 features) | |
9387 | { | |
9388 | ASSERT_DEVLINK_NOT_REGISTERED(devlink); | |
9389 | ||
9390 | WARN_ON(features & DEVLINK_F_RELOAD && | |
9391 | !devlink_reload_supported(devlink->ops)); | |
9392 | devlink->features = features; | |
9393 | } | |
9394 | EXPORT_SYMBOL_GPL(devlink_set_features); | |
9395 | ||
bfcd3a46 | 9396 | /** |
26713455 LR |
9397 | * devlink_alloc_ns - Allocate new devlink instance resources |
9398 | * in specific namespace | |
bfcd3a46 JP |
9399 | * |
9400 | * @ops: ops | |
9401 | * @priv_size: size of user private data | |
26713455 | 9402 | * @net: net namespace |
919d13a7 | 9403 | * @dev: parent device |
bfcd3a46 JP |
9404 | * |
9405 | * Allocate new devlink instance resources, including devlink index | |
9406 | * and name. | |
9407 | */ | |
26713455 | 9408 | struct devlink *devlink_alloc_ns(const struct devlink_ops *ops, |
919d13a7 LR |
9409 | size_t priv_size, struct net *net, |
9410 | struct device *dev) | |
bfcd3a46 JP |
9411 | { |
9412 | struct devlink *devlink; | |
11a861d7 LR |
9413 | static u32 last_id; |
9414 | int ret; | |
bfcd3a46 | 9415 | |
919d13a7 | 9416 | WARN_ON(!ops || !dev); |
ccdf0721 MS |
9417 | if (!devlink_reload_actions_valid(ops)) |
9418 | return NULL; | |
9419 | ||
bfcd3a46 JP |
9420 | devlink = kzalloc(sizeof(*devlink) + priv_size, GFP_KERNEL); |
9421 | if (!devlink) | |
9422 | return NULL; | |
919d13a7 | 9423 | |
11a861d7 LR |
9424 | ret = xa_alloc_cyclic(&devlinks, &devlink->index, devlink, xa_limit_31b, |
9425 | &last_id, GFP_KERNEL); | |
9426 | if (ret < 0) { | |
9427 | kfree(devlink); | |
9428 | return NULL; | |
9429 | } | |
9430 | ||
919d13a7 | 9431 | devlink->dev = dev; |
bfcd3a46 | 9432 | devlink->ops = ops; |
12102436 | 9433 | xa_init_flags(&devlink->snapshot_ids, XA_FLAGS_ALLOC); |
26713455 | 9434 | write_pnet(&devlink->_net, net); |
bfcd3a46 | 9435 | INIT_LIST_HEAD(&devlink->port_list); |
4677efc4 | 9436 | INIT_LIST_HEAD(&devlink->rate_list); |
c246f9b5 | 9437 | INIT_LIST_HEAD(&devlink->linecard_list); |
bf797471 | 9438 | INIT_LIST_HEAD(&devlink->sb_list); |
1555d204 | 9439 | INIT_LIST_HEAD_RCU(&devlink->dpipe_table_list); |
d9f9b9a4 | 9440 | INIT_LIST_HEAD(&devlink->resource_list); |
eabaef18 | 9441 | INIT_LIST_HEAD(&devlink->param_list); |
b16ebe92 | 9442 | INIT_LIST_HEAD(&devlink->region_list); |
a0bdcc59 | 9443 | INIT_LIST_HEAD(&devlink->reporter_list); |
0f420b6c IS |
9444 | INIT_LIST_HEAD(&devlink->trap_list); |
9445 | INIT_LIST_HEAD(&devlink->trap_group_list); | |
1e8c6619 | 9446 | INIT_LIST_HEAD(&devlink->trap_policer_list); |
e26fde2f | 9447 | lockdep_register_key(&devlink->lock_key); |
2406e7e5 | 9448 | mutex_init(&devlink->lock); |
e26fde2f | 9449 | lockdep_set_class(&devlink->lock, &devlink->lock_key); |
b587bdaf | 9450 | mutex_init(&devlink->reporters_lock); |
c246f9b5 | 9451 | mutex_init(&devlink->linecards_lock); |
437ebfd9 LR |
9452 | refcount_set(&devlink->refcount, 1); |
9453 | init_completion(&devlink->comp); | |
9454 | ||
bfcd3a46 JP |
9455 | return devlink; |
9456 | } | |
26713455 | 9457 | EXPORT_SYMBOL_GPL(devlink_alloc_ns); |
bfcd3a46 | 9458 | |
cf530217 LR |
9459 | static void |
9460 | devlink_trap_policer_notify(struct devlink *devlink, | |
9461 | const struct devlink_trap_policer_item *policer_item, | |
9462 | enum devlink_command cmd); | |
9463 | static void | |
9464 | devlink_trap_group_notify(struct devlink *devlink, | |
9465 | const struct devlink_trap_group_item *group_item, | |
9466 | enum devlink_command cmd); | |
9467 | static void devlink_trap_notify(struct devlink *devlink, | |
9468 | const struct devlink_trap_item *trap_item, | |
9469 | enum devlink_command cmd); | |
9470 | ||
9471 | static void devlink_notify_register(struct devlink *devlink) | |
9472 | { | |
9473 | struct devlink_trap_policer_item *policer_item; | |
9474 | struct devlink_trap_group_item *group_item; | |
99ad92ef | 9475 | struct devlink_param_item *param_item; |
cf530217 LR |
9476 | struct devlink_trap_item *trap_item; |
9477 | struct devlink_port *devlink_port; | |
c246f9b5 | 9478 | struct devlink_linecard *linecard; |
ef91abfb LR |
9479 | struct devlink_rate *rate_node; |
9480 | struct devlink_region *region; | |
cf530217 LR |
9481 | |
9482 | devlink_notify(devlink, DEVLINK_CMD_NEW); | |
c246f9b5 JP |
9483 | list_for_each_entry(linecard, &devlink->linecard_list, list) |
9484 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
9485 | ||
cf530217 LR |
9486 | list_for_each_entry(devlink_port, &devlink->port_list, list) |
9487 | devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_NEW); | |
9488 | ||
9489 | list_for_each_entry(policer_item, &devlink->trap_policer_list, list) | |
9490 | devlink_trap_policer_notify(devlink, policer_item, | |
9491 | DEVLINK_CMD_TRAP_POLICER_NEW); | |
9492 | ||
9493 | list_for_each_entry(group_item, &devlink->trap_group_list, list) | |
9494 | devlink_trap_group_notify(devlink, group_item, | |
9495 | DEVLINK_CMD_TRAP_GROUP_NEW); | |
9496 | ||
9497 | list_for_each_entry(trap_item, &devlink->trap_list, list) | |
9498 | devlink_trap_notify(devlink, trap_item, DEVLINK_CMD_TRAP_NEW); | |
9499 | ||
ef91abfb LR |
9500 | list_for_each_entry(rate_node, &devlink->rate_list, list) |
9501 | devlink_rate_notify(rate_node, DEVLINK_CMD_RATE_NEW); | |
9502 | ||
9503 | list_for_each_entry(region, &devlink->region_list, list) | |
9504 | devlink_nl_region_notify(region, NULL, DEVLINK_CMD_REGION_NEW); | |
9505 | ||
99ad92ef LR |
9506 | list_for_each_entry(param_item, &devlink->param_list, list) |
9507 | devlink_param_notify(devlink, 0, param_item, | |
9508 | DEVLINK_CMD_PARAM_NEW); | |
cf530217 LR |
9509 | } |
9510 | ||
9511 | static void devlink_notify_unregister(struct devlink *devlink) | |
9512 | { | |
9513 | struct devlink_trap_policer_item *policer_item; | |
9514 | struct devlink_trap_group_item *group_item; | |
99ad92ef | 9515 | struct devlink_param_item *param_item; |
cf530217 LR |
9516 | struct devlink_trap_item *trap_item; |
9517 | struct devlink_port *devlink_port; | |
ef91abfb LR |
9518 | struct devlink_rate *rate_node; |
9519 | struct devlink_region *region; | |
cf530217 | 9520 | |
99ad92ef LR |
9521 | list_for_each_entry_reverse(param_item, &devlink->param_list, list) |
9522 | devlink_param_notify(devlink, 0, param_item, | |
9523 | DEVLINK_CMD_PARAM_DEL); | |
cf530217 | 9524 | |
ef91abfb LR |
9525 | list_for_each_entry_reverse(region, &devlink->region_list, list) |
9526 | devlink_nl_region_notify(region, NULL, DEVLINK_CMD_REGION_DEL); | |
9527 | ||
9528 | list_for_each_entry_reverse(rate_node, &devlink->rate_list, list) | |
9529 | devlink_rate_notify(rate_node, DEVLINK_CMD_RATE_DEL); | |
9530 | ||
cf530217 LR |
9531 | list_for_each_entry_reverse(trap_item, &devlink->trap_list, list) |
9532 | devlink_trap_notify(devlink, trap_item, DEVLINK_CMD_TRAP_DEL); | |
9533 | ||
9534 | list_for_each_entry_reverse(group_item, &devlink->trap_group_list, list) | |
9535 | devlink_trap_group_notify(devlink, group_item, | |
9536 | DEVLINK_CMD_TRAP_GROUP_DEL); | |
9537 | list_for_each_entry_reverse(policer_item, &devlink->trap_policer_list, | |
9538 | list) | |
9539 | devlink_trap_policer_notify(devlink, policer_item, | |
9540 | DEVLINK_CMD_TRAP_POLICER_DEL); | |
9541 | ||
9542 | list_for_each_entry_reverse(devlink_port, &devlink->port_list, list) | |
9543 | devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_DEL); | |
9544 | devlink_notify(devlink, DEVLINK_CMD_DEL); | |
9545 | } | |
9546 | ||
bfcd3a46 JP |
9547 | /** |
9548 | * devlink_register - Register devlink instance | |
9549 | * | |
9550 | * @devlink: devlink | |
9551 | */ | |
db4278c5 | 9552 | void devlink_register(struct devlink *devlink) |
bfcd3a46 | 9553 | { |
b88f7b12 LR |
9554 | ASSERT_DEVLINK_NOT_REGISTERED(devlink); |
9555 | /* Make sure that we are in .probe() routine */ | |
b88f7b12 | 9556 | |
11a861d7 | 9557 | xa_set_mark(&devlinks, devlink->index, DEVLINK_REGISTERED); |
cf530217 | 9558 | devlink_notify_register(devlink); |
bfcd3a46 JP |
9559 | } |
9560 | EXPORT_SYMBOL_GPL(devlink_register); | |
9561 | ||
9562 | /** | |
9563 | * devlink_unregister - Unregister devlink instance | |
9564 | * | |
9565 | * @devlink: devlink | |
9566 | */ | |
9567 | void devlink_unregister(struct devlink *devlink) | |
9568 | { | |
b88f7b12 LR |
9569 | ASSERT_DEVLINK_REGISTERED(devlink); |
9570 | /* Make sure that we are in .remove() routine */ | |
b88f7b12 | 9571 | |
437ebfd9 LR |
9572 | devlink_put(devlink); |
9573 | wait_for_completion(&devlink->comp); | |
9574 | ||
cf530217 | 9575 | devlink_notify_unregister(devlink); |
11a861d7 | 9576 | xa_clear_mark(&devlinks, devlink->index, DEVLINK_REGISTERED); |
bfcd3a46 JP |
9577 | } |
9578 | EXPORT_SYMBOL_GPL(devlink_unregister); | |
9579 | ||
9580 | /** | |
9581 | * devlink_free - Free devlink instance resources | |
9582 | * | |
9583 | * @devlink: devlink | |
9584 | */ | |
9585 | void devlink_free(struct devlink *devlink) | |
9586 | { | |
b88f7b12 LR |
9587 | ASSERT_DEVLINK_NOT_REGISTERED(devlink); |
9588 | ||
c246f9b5 | 9589 | mutex_destroy(&devlink->linecards_lock); |
b587bdaf | 9590 | mutex_destroy(&devlink->reporters_lock); |
375cf8c6 | 9591 | mutex_destroy(&devlink->lock); |
e26fde2f | 9592 | lockdep_unregister_key(&devlink->lock_key); |
1e8c6619 | 9593 | WARN_ON(!list_empty(&devlink->trap_policer_list)); |
0f420b6c IS |
9594 | WARN_ON(!list_empty(&devlink->trap_group_list)); |
9595 | WARN_ON(!list_empty(&devlink->trap_list)); | |
b904aada PP |
9596 | WARN_ON(!list_empty(&devlink->reporter_list)); |
9597 | WARN_ON(!list_empty(&devlink->region_list)); | |
9598 | WARN_ON(!list_empty(&devlink->param_list)); | |
9599 | WARN_ON(!list_empty(&devlink->resource_list)); | |
9600 | WARN_ON(!list_empty(&devlink->dpipe_table_list)); | |
9601 | WARN_ON(!list_empty(&devlink->sb_list)); | |
4677efc4 | 9602 | WARN_ON(!list_empty(&devlink->rate_list)); |
c246f9b5 | 9603 | WARN_ON(!list_empty(&devlink->linecard_list)); |
b904aada PP |
9604 | WARN_ON(!list_empty(&devlink->port_list)); |
9605 | ||
12102436 | 9606 | xa_destroy(&devlink->snapshot_ids); |
11a861d7 | 9607 | xa_erase(&devlinks, devlink->index); |
12102436 | 9608 | |
bfcd3a46 JP |
9609 | kfree(devlink); |
9610 | } | |
9611 | EXPORT_SYMBOL_GPL(devlink_free); | |
9612 | ||
136bf27f JP |
9613 | static void devlink_port_type_warn(struct work_struct *work) |
9614 | { | |
9615 | WARN(true, "Type was not set for devlink port."); | |
9616 | } | |
9617 | ||
9618 | static bool devlink_port_type_should_warn(struct devlink_port *devlink_port) | |
9619 | { | |
9620 | /* Ignore CPU and DSA flavours. */ | |
9621 | return devlink_port->attrs.flavour != DEVLINK_PORT_FLAVOUR_CPU && | |
cf116634 AL |
9622 | devlink_port->attrs.flavour != DEVLINK_PORT_FLAVOUR_DSA && |
9623 | devlink_port->attrs.flavour != DEVLINK_PORT_FLAVOUR_UNUSED; | |
136bf27f JP |
9624 | } |
9625 | ||
4c582234 | 9626 | #define DEVLINK_PORT_TYPE_WARN_TIMEOUT (HZ * 3600) |
136bf27f JP |
9627 | |
9628 | static void devlink_port_type_warn_schedule(struct devlink_port *devlink_port) | |
9629 | { | |
9630 | if (!devlink_port_type_should_warn(devlink_port)) | |
9631 | return; | |
9632 | /* Schedule a work to WARN in case driver does not set port | |
9633 | * type within timeout. | |
9634 | */ | |
9635 | schedule_delayed_work(&devlink_port->type_warn_dw, | |
9636 | DEVLINK_PORT_TYPE_WARN_TIMEOUT); | |
9637 | } | |
9638 | ||
9639 | static void devlink_port_type_warn_cancel(struct devlink_port *devlink_port) | |
9640 | { | |
9641 | if (!devlink_port_type_should_warn(devlink_port)) | |
9642 | return; | |
9643 | cancel_delayed_work_sync(&devlink_port->type_warn_dw); | |
9644 | } | |
9645 | ||
1abfb265 JP |
9646 | /** |
9647 | * devl_port_register() - Register devlink port | |
9648 | * | |
9649 | * @devlink: devlink | |
9650 | * @devlink_port: devlink port | |
9651 | * @port_index: driver-specific numerical identifier of the port | |
9652 | * | |
9653 | * Register devlink port with provided port index. User can use | |
9654 | * any indexing, even hw-related one. devlink_port structure | |
9655 | * is convenient to be embedded inside user driver private structure. | |
9656 | * Note that the caller should take care of zeroing the devlink_port | |
9657 | * structure. | |
9658 | */ | |
2cb7b489 JK |
9659 | int devl_port_register(struct devlink *devlink, |
9660 | struct devlink_port *devlink_port, | |
9661 | unsigned int port_index) | |
9662 | { | |
7715023a | 9663 | devl_assert_locked(devlink); |
2cb7b489 JK |
9664 | |
9665 | if (devlink_port_index_exists(devlink, port_index)) | |
9666 | return -EEXIST; | |
9667 | ||
9668 | WARN_ON(devlink_port->devlink); | |
9669 | devlink_port->devlink = devlink; | |
9670 | devlink_port->index = port_index; | |
9671 | spin_lock_init(&devlink_port->type_lock); | |
9672 | INIT_LIST_HEAD(&devlink_port->reporter_list); | |
9673 | mutex_init(&devlink_port->reporters_lock); | |
9674 | list_add_tail(&devlink_port->list, &devlink->port_list); | |
9675 | INIT_LIST_HEAD(&devlink_port->param_list); | |
9676 | INIT_LIST_HEAD(&devlink_port->region_list); | |
9677 | ||
9678 | INIT_DELAYED_WORK(&devlink_port->type_warn_dw, &devlink_port_type_warn); | |
9679 | devlink_port_type_warn_schedule(devlink_port); | |
9680 | devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_NEW); | |
9681 | return 0; | |
9682 | } | |
9683 | EXPORT_SYMBOL_GPL(devl_port_register); | |
9684 | ||
bfcd3a46 JP |
9685 | /** |
9686 | * devlink_port_register - Register devlink port | |
9687 | * | |
9688 | * @devlink: devlink | |
9689 | * @devlink_port: devlink port | |
eeaadd82 | 9690 | * @port_index: driver-specific numerical identifier of the port |
bfcd3a46 JP |
9691 | * |
9692 | * Register devlink port with provided port index. User can use | |
9693 | * any indexing, even hw-related one. devlink_port structure | |
9694 | * is convenient to be embedded inside user driver private structure. | |
9695 | * Note that the caller should take care of zeroing the devlink_port | |
9696 | * structure. | |
1abfb265 JP |
9697 | * |
9698 | * Context: Takes and release devlink->lock <mutex>. | |
bfcd3a46 JP |
9699 | */ |
9700 | int devlink_port_register(struct devlink *devlink, | |
9701 | struct devlink_port *devlink_port, | |
9702 | unsigned int port_index) | |
9703 | { | |
2cb7b489 | 9704 | int err; |
d7907a2b | 9705 | |
7715023a | 9706 | devl_lock(devlink); |
2cb7b489 | 9707 | err = devl_port_register(devlink, devlink_port, port_index); |
7715023a | 9708 | devl_unlock(devlink); |
2cb7b489 | 9709 | return err; |
bfcd3a46 JP |
9710 | } |
9711 | EXPORT_SYMBOL_GPL(devlink_port_register); | |
9712 | ||
1abfb265 JP |
9713 | /** |
9714 | * devl_port_unregister() - Unregister devlink port | |
9715 | * | |
9716 | * @devlink_port: devlink port | |
9717 | */ | |
2cb7b489 JK |
9718 | void devl_port_unregister(struct devlink_port *devlink_port) |
9719 | { | |
9720 | lockdep_assert_held(&devlink_port->devlink->lock); | |
9721 | ||
9722 | devlink_port_type_warn_cancel(devlink_port); | |
9723 | devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_DEL); | |
9724 | list_del(&devlink_port->list); | |
9725 | WARN_ON(!list_empty(&devlink_port->reporter_list)); | |
9726 | WARN_ON(!list_empty(&devlink_port->region_list)); | |
9727 | mutex_destroy(&devlink_port->reporters_lock); | |
9728 | } | |
9729 | EXPORT_SYMBOL_GPL(devl_port_unregister); | |
9730 | ||
bfcd3a46 JP |
9731 | /** |
9732 | * devlink_port_unregister - Unregister devlink port | |
9733 | * | |
9734 | * @devlink_port: devlink port | |
1abfb265 JP |
9735 | * |
9736 | * Context: Takes and release devlink->lock <mutex>. | |
bfcd3a46 JP |
9737 | */ |
9738 | void devlink_port_unregister(struct devlink_port *devlink_port) | |
9739 | { | |
2406e7e5 AS |
9740 | struct devlink *devlink = devlink_port->devlink; |
9741 | ||
7715023a | 9742 | devl_lock(devlink); |
2cb7b489 | 9743 | devl_port_unregister(devlink_port); |
7715023a | 9744 | devl_unlock(devlink); |
bfcd3a46 JP |
9745 | } |
9746 | EXPORT_SYMBOL_GPL(devlink_port_unregister); | |
9747 | ||
9748 | static void __devlink_port_type_set(struct devlink_port *devlink_port, | |
9749 | enum devlink_port_type type, | |
9750 | void *type_dev) | |
9751 | { | |
d7907a2b | 9752 | if (WARN_ON(!devlink_port->devlink)) |
2b239e70 | 9753 | return; |
136bf27f | 9754 | devlink_port_type_warn_cancel(devlink_port); |
0f420b6c | 9755 | spin_lock_bh(&devlink_port->type_lock); |
bfcd3a46 JP |
9756 | devlink_port->type = type; |
9757 | devlink_port->type_dev = type_dev; | |
0f420b6c | 9758 | spin_unlock_bh(&devlink_port->type_lock); |
bfcd3a46 JP |
9759 | devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_NEW); |
9760 | } | |
9761 | ||
3ea87ca7 JK |
9762 | static void devlink_port_type_netdev_checks(struct devlink_port *devlink_port, |
9763 | struct net_device *netdev) | |
bfcd3a46 | 9764 | { |
119c0b57 JP |
9765 | const struct net_device_ops *ops = netdev->netdev_ops; |
9766 | ||
746364f2 JP |
9767 | /* If driver registers devlink port, it should set devlink port |
9768 | * attributes accordingly so the compat functions are called | |
9769 | * and the original ops are not used. | |
9770 | */ | |
119c0b57 | 9771 | if (ops->ndo_get_phys_port_name) { |
746364f2 JP |
9772 | /* Some drivers use the same set of ndos for netdevs |
9773 | * that have devlink_port registered and also for | |
9774 | * those who don't. Make sure that ndo_get_phys_port_name | |
9775 | * returns -EOPNOTSUPP here in case it is defined. | |
9776 | * Warn if not. | |
9777 | */ | |
746364f2 JP |
9778 | char name[IFNAMSIZ]; |
9779 | int err; | |
9780 | ||
9781 | err = ops->ndo_get_phys_port_name(netdev, name, sizeof(name)); | |
9782 | WARN_ON(err != -EOPNOTSUPP); | |
9783 | } | |
119c0b57 JP |
9784 | if (ops->ndo_get_port_parent_id) { |
9785 | /* Some drivers use the same set of ndos for netdevs | |
9786 | * that have devlink_port registered and also for | |
9787 | * those who don't. Make sure that ndo_get_port_parent_id | |
9788 | * returns -EOPNOTSUPP here in case it is defined. | |
9789 | * Warn if not. | |
9790 | */ | |
9791 | struct netdev_phys_item_id ppid; | |
9792 | int err; | |
9793 | ||
9794 | err = ops->ndo_get_port_parent_id(netdev, &ppid); | |
9795 | WARN_ON(err != -EOPNOTSUPP); | |
9796 | } | |
3ea87ca7 JK |
9797 | } |
9798 | ||
9799 | /** | |
9800 | * devlink_port_type_eth_set - Set port type to Ethernet | |
9801 | * | |
9802 | * @devlink_port: devlink port | |
9803 | * @netdev: related netdevice | |
9804 | */ | |
9805 | void devlink_port_type_eth_set(struct devlink_port *devlink_port, | |
9806 | struct net_device *netdev) | |
9807 | { | |
9808 | if (netdev) | |
9809 | devlink_port_type_netdev_checks(devlink_port, netdev); | |
9810 | else | |
9811 | dev_warn(devlink_port->devlink->dev, | |
9812 | "devlink port type for port %d set to Ethernet without a software interface reference, device type not supported by the kernel?\n", | |
9813 | devlink_port->index); | |
9814 | ||
773b1f38 | 9815 | __devlink_port_type_set(devlink_port, DEVLINK_PORT_TYPE_ETH, netdev); |
bfcd3a46 JP |
9816 | } |
9817 | EXPORT_SYMBOL_GPL(devlink_port_type_eth_set); | |
9818 | ||
9819 | /** | |
9820 | * devlink_port_type_ib_set - Set port type to InfiniBand | |
9821 | * | |
9822 | * @devlink_port: devlink port | |
9823 | * @ibdev: related IB device | |
9824 | */ | |
9825 | void devlink_port_type_ib_set(struct devlink_port *devlink_port, | |
9826 | struct ib_device *ibdev) | |
9827 | { | |
773b1f38 | 9828 | __devlink_port_type_set(devlink_port, DEVLINK_PORT_TYPE_IB, ibdev); |
bfcd3a46 JP |
9829 | } |
9830 | EXPORT_SYMBOL_GPL(devlink_port_type_ib_set); | |
9831 | ||
9832 | /** | |
9833 | * devlink_port_type_clear - Clear port type | |
9834 | * | |
9835 | * @devlink_port: devlink port | |
9836 | */ | |
9837 | void devlink_port_type_clear(struct devlink_port *devlink_port) | |
9838 | { | |
773b1f38 | 9839 | __devlink_port_type_set(devlink_port, DEVLINK_PORT_TYPE_NOTSET, NULL); |
136bf27f | 9840 | devlink_port_type_warn_schedule(devlink_port); |
bfcd3a46 JP |
9841 | } |
9842 | EXPORT_SYMBOL_GPL(devlink_port_type_clear); | |
9843 | ||
378ef01b | 9844 | static int __devlink_port_attrs_set(struct devlink_port *devlink_port, |
71ad8d55 | 9845 | enum devlink_port_flavour flavour) |
378ef01b PP |
9846 | { |
9847 | struct devlink_port_attrs *attrs = &devlink_port->attrs; | |
9848 | ||
10a429ba | 9849 | devlink_port->attrs_set = true; |
378ef01b | 9850 | attrs->flavour = flavour; |
71ad8d55 | 9851 | if (attrs->switch_id.id_len) { |
46737a19 | 9852 | devlink_port->switch_port = true; |
71ad8d55 DR |
9853 | if (WARN_ON(attrs->switch_id.id_len > MAX_PHYS_ITEM_ID_LEN)) |
9854 | attrs->switch_id.id_len = MAX_PHYS_ITEM_ID_LEN; | |
378ef01b | 9855 | } else { |
46737a19 | 9856 | devlink_port->switch_port = false; |
378ef01b PP |
9857 | } |
9858 | return 0; | |
9859 | } | |
9860 | ||
bfcd3a46 | 9861 | /** |
b9ffcbaf | 9862 | * devlink_port_attrs_set - Set port attributes |
bfcd3a46 JP |
9863 | * |
9864 | * @devlink_port: devlink port | |
71ad8d55 | 9865 | * @attrs: devlink port attrs |
bfcd3a46 | 9866 | */ |
b9ffcbaf | 9867 | void devlink_port_attrs_set(struct devlink_port *devlink_port, |
71ad8d55 | 9868 | struct devlink_port_attrs *attrs) |
bfcd3a46 | 9869 | { |
378ef01b | 9870 | int ret; |
b9ffcbaf | 9871 | |
d7907a2b | 9872 | if (WARN_ON(devlink_port->devlink)) |
9f73bd1c | 9873 | return; |
71ad8d55 DR |
9874 | devlink_port->attrs = *attrs; |
9875 | ret = __devlink_port_attrs_set(devlink_port, attrs->flavour); | |
378ef01b | 9876 | if (ret) |
45b86112 | 9877 | return; |
a0f49b54 | 9878 | WARN_ON(attrs->splittable && attrs->split); |
bfcd3a46 | 9879 | } |
b9ffcbaf | 9880 | EXPORT_SYMBOL_GPL(devlink_port_attrs_set); |
bfcd3a46 | 9881 | |
98fd2d65 PP |
9882 | /** |
9883 | * devlink_port_attrs_pci_pf_set - Set PCI PF port attributes | |
9884 | * | |
9885 | * @devlink_port: devlink port | |
3a2d9588 | 9886 | * @controller: associated controller number for the devlink port instance |
98fd2d65 | 9887 | * @pf: associated PF for the devlink port instance |
05b595e9 | 9888 | * @external: indicates if the port is for an external controller |
98fd2d65 | 9889 | */ |
3a2d9588 PP |
9890 | void devlink_port_attrs_pci_pf_set(struct devlink_port *devlink_port, u32 controller, |
9891 | u16 pf, bool external) | |
98fd2d65 PP |
9892 | { |
9893 | struct devlink_port_attrs *attrs = &devlink_port->attrs; | |
9894 | int ret; | |
9895 | ||
d7907a2b | 9896 | if (WARN_ON(devlink_port->devlink)) |
9f73bd1c | 9897 | return; |
98fd2d65 | 9898 | ret = __devlink_port_attrs_set(devlink_port, |
71ad8d55 | 9899 | DEVLINK_PORT_FLAVOUR_PCI_PF); |
98fd2d65 PP |
9900 | if (ret) |
9901 | return; | |
3a2d9588 | 9902 | attrs->pci_pf.controller = controller; |
98fd2d65 | 9903 | attrs->pci_pf.pf = pf; |
05b595e9 | 9904 | attrs->pci_pf.external = external; |
98fd2d65 PP |
9905 | } |
9906 | EXPORT_SYMBOL_GPL(devlink_port_attrs_pci_pf_set); | |
9907 | ||
e41b6bf3 PP |
9908 | /** |
9909 | * devlink_port_attrs_pci_vf_set - Set PCI VF port attributes | |
9910 | * | |
9911 | * @devlink_port: devlink port | |
3a2d9588 | 9912 | * @controller: associated controller number for the devlink port instance |
e41b6bf3 PP |
9913 | * @pf: associated PF for the devlink port instance |
9914 | * @vf: associated VF of a PF for the devlink port instance | |
05b595e9 | 9915 | * @external: indicates if the port is for an external controller |
e41b6bf3 | 9916 | */ |
3a2d9588 | 9917 | void devlink_port_attrs_pci_vf_set(struct devlink_port *devlink_port, u32 controller, |
05b595e9 | 9918 | u16 pf, u16 vf, bool external) |
e41b6bf3 PP |
9919 | { |
9920 | struct devlink_port_attrs *attrs = &devlink_port->attrs; | |
9921 | int ret; | |
9922 | ||
d7907a2b | 9923 | if (WARN_ON(devlink_port->devlink)) |
9f73bd1c | 9924 | return; |
e41b6bf3 | 9925 | ret = __devlink_port_attrs_set(devlink_port, |
71ad8d55 | 9926 | DEVLINK_PORT_FLAVOUR_PCI_VF); |
e41b6bf3 PP |
9927 | if (ret) |
9928 | return; | |
3a2d9588 | 9929 | attrs->pci_vf.controller = controller; |
e41b6bf3 PP |
9930 | attrs->pci_vf.pf = pf; |
9931 | attrs->pci_vf.vf = vf; | |
05b595e9 | 9932 | attrs->pci_vf.external = external; |
e41b6bf3 PP |
9933 | } |
9934 | EXPORT_SYMBOL_GPL(devlink_port_attrs_pci_vf_set); | |
9935 | ||
b8288837 PP |
9936 | /** |
9937 | * devlink_port_attrs_pci_sf_set - Set PCI SF port attributes | |
9938 | * | |
9939 | * @devlink_port: devlink port | |
9940 | * @controller: associated controller number for the devlink port instance | |
9941 | * @pf: associated PF for the devlink port instance | |
9942 | * @sf: associated SF of a PF for the devlink port instance | |
a1ab3e45 | 9943 | * @external: indicates if the port is for an external controller |
b8288837 PP |
9944 | */ |
9945 | void devlink_port_attrs_pci_sf_set(struct devlink_port *devlink_port, u32 controller, | |
a1ab3e45 | 9946 | u16 pf, u32 sf, bool external) |
b8288837 PP |
9947 | { |
9948 | struct devlink_port_attrs *attrs = &devlink_port->attrs; | |
9949 | int ret; | |
9950 | ||
d7907a2b | 9951 | if (WARN_ON(devlink_port->devlink)) |
b8288837 PP |
9952 | return; |
9953 | ret = __devlink_port_attrs_set(devlink_port, | |
9954 | DEVLINK_PORT_FLAVOUR_PCI_SF); | |
9955 | if (ret) | |
9956 | return; | |
9957 | attrs->pci_sf.controller = controller; | |
9958 | attrs->pci_sf.pf = pf; | |
9959 | attrs->pci_sf.sf = sf; | |
a1ab3e45 | 9960 | attrs->pci_sf.external = external; |
b8288837 PP |
9961 | } |
9962 | EXPORT_SYMBOL_GPL(devlink_port_attrs_pci_sf_set); | |
9963 | ||
4677efc4 | 9964 | /** |
8879b32a | 9965 | * devl_rate_leaf_create - create devlink rate leaf |
4677efc4 DL |
9966 | * @devlink_port: devlink port object to create rate object on |
9967 | * @priv: driver private data | |
9968 | * | |
9969 | * Create devlink rate object of type leaf on provided @devlink_port. | |
4677efc4 | 9970 | */ |
8879b32a | 9971 | int devl_rate_leaf_create(struct devlink_port *devlink_port, void *priv) |
4677efc4 DL |
9972 | { |
9973 | struct devlink *devlink = devlink_port->devlink; | |
9974 | struct devlink_rate *devlink_rate; | |
9975 | ||
8879b32a JK |
9976 | devl_assert_locked(devlink_port->devlink); |
9977 | ||
9978 | if (WARN_ON(devlink_port->devlink_rate)) | |
9979 | return -EBUSY; | |
9980 | ||
4677efc4 DL |
9981 | devlink_rate = kzalloc(sizeof(*devlink_rate), GFP_KERNEL); |
9982 | if (!devlink_rate) | |
9983 | return -ENOMEM; | |
9984 | ||
4677efc4 DL |
9985 | devlink_rate->type = DEVLINK_RATE_TYPE_LEAF; |
9986 | devlink_rate->devlink = devlink; | |
9987 | devlink_rate->devlink_port = devlink_port; | |
9988 | devlink_rate->priv = priv; | |
9989 | list_add_tail(&devlink_rate->list, &devlink->rate_list); | |
9990 | devlink_port->devlink_rate = devlink_rate; | |
9991 | devlink_rate_notify(devlink_rate, DEVLINK_CMD_RATE_NEW); | |
4677efc4 DL |
9992 | |
9993 | return 0; | |
9994 | } | |
8879b32a JK |
9995 | EXPORT_SYMBOL_GPL(devl_rate_leaf_create); |
9996 | ||
df539fc6 MS |
9997 | /** |
9998 | * devl_rate_leaf_destroy - destroy devlink rate leaf | |
9999 | * | |
10000 | * @devlink_port: devlink port linked to the rate object | |
10001 | * | |
10002 | * Destroy the devlink rate object of type leaf on provided @devlink_port. | |
10003 | */ | |
8879b32a JK |
10004 | void devl_rate_leaf_destroy(struct devlink_port *devlink_port) |
10005 | { | |
10006 | struct devlink_rate *devlink_rate = devlink_port->devlink_rate; | |
10007 | ||
10008 | devl_assert_locked(devlink_port->devlink); | |
10009 | if (!devlink_rate) | |
10010 | return; | |
10011 | ||
10012 | devlink_rate_notify(devlink_rate, DEVLINK_CMD_RATE_DEL); | |
10013 | if (devlink_rate->parent) | |
10014 | refcount_dec(&devlink_rate->parent->refcnt); | |
10015 | list_del(&devlink_rate->list); | |
10016 | devlink_port->devlink_rate = NULL; | |
10017 | kfree(devlink_rate); | |
10018 | } | |
10019 | EXPORT_SYMBOL_GPL(devl_rate_leaf_destroy); | |
10020 | ||
a8ecb93e | 10021 | /** |
8879b32a | 10022 | * devl_rate_nodes_destroy - destroy all devlink rate nodes on device |
a8ecb93e DL |
10023 | * @devlink: devlink instance |
10024 | * | |
d7555984 DL |
10025 | * Unset parent for all rate objects and destroy all rate nodes |
10026 | * on specified device. | |
a8ecb93e | 10027 | */ |
8879b32a | 10028 | void devl_rate_nodes_destroy(struct devlink *devlink) |
a8ecb93e DL |
10029 | { |
10030 | static struct devlink_rate *devlink_rate, *tmp; | |
10031 | const struct devlink_ops *ops = devlink->ops; | |
10032 | ||
8879b32a JK |
10033 | devl_assert_locked(devlink); |
10034 | ||
d7555984 DL |
10035 | list_for_each_entry(devlink_rate, &devlink->rate_list, list) { |
10036 | if (!devlink_rate->parent) | |
10037 | continue; | |
10038 | ||
10039 | refcount_dec(&devlink_rate->parent->refcnt); | |
10040 | if (devlink_rate_is_leaf(devlink_rate)) | |
10041 | ops->rate_leaf_parent_set(devlink_rate, NULL, devlink_rate->priv, | |
10042 | NULL, NULL); | |
10043 | else if (devlink_rate_is_node(devlink_rate)) | |
10044 | ops->rate_node_parent_set(devlink_rate, NULL, devlink_rate->priv, | |
10045 | NULL, NULL); | |
10046 | } | |
a8ecb93e DL |
10047 | list_for_each_entry_safe(devlink_rate, tmp, &devlink->rate_list, list) { |
10048 | if (devlink_rate_is_node(devlink_rate)) { | |
10049 | ops->rate_node_del(devlink_rate, devlink_rate->priv, NULL); | |
10050 | list_del(&devlink_rate->list); | |
10051 | kfree(devlink_rate->name); | |
10052 | kfree(devlink_rate); | |
10053 | } | |
10054 | } | |
8879b32a JK |
10055 | } |
10056 | EXPORT_SYMBOL_GPL(devl_rate_nodes_destroy); | |
10057 | ||
b8375859 JP |
10058 | /** |
10059 | * devlink_port_linecard_set - Link port with a linecard | |
10060 | * | |
10061 | * @devlink_port: devlink port | |
10062 | * @linecard: devlink linecard | |
10063 | */ | |
10064 | void devlink_port_linecard_set(struct devlink_port *devlink_port, | |
10065 | struct devlink_linecard *linecard) | |
10066 | { | |
10067 | if (WARN_ON(devlink_port->devlink)) | |
10068 | return; | |
10069 | devlink_port->linecard = linecard; | |
10070 | } | |
10071 | EXPORT_SYMBOL_GPL(devlink_port_linecard_set); | |
10072 | ||
af3836df JP |
10073 | static int __devlink_port_phys_port_name_get(struct devlink_port *devlink_port, |
10074 | char *name, size_t len) | |
08474c1a JP |
10075 | { |
10076 | struct devlink_port_attrs *attrs = &devlink_port->attrs; | |
10077 | int n = 0; | |
10078 | ||
10a429ba | 10079 | if (!devlink_port->attrs_set) |
08474c1a JP |
10080 | return -EOPNOTSUPP; |
10081 | ||
10082 | switch (attrs->flavour) { | |
10083 | case DEVLINK_PORT_FLAVOUR_PHYSICAL: | |
b8375859 JP |
10084 | if (devlink_port->linecard) |
10085 | n = snprintf(name, len, "l%u", | |
10086 | devlink_port->linecard->index); | |
10087 | if (n < len) | |
10088 | n += snprintf(name + n, len - n, "p%u", | |
10089 | attrs->phys.port_number); | |
f285f37c JP |
10090 | if (n < len && attrs->split) |
10091 | n += snprintf(name + n, len - n, "s%u", | |
10092 | attrs->phys.split_subport_number); | |
08474c1a JP |
10093 | break; |
10094 | case DEVLINK_PORT_FLAVOUR_CPU: | |
10095 | case DEVLINK_PORT_FLAVOUR_DSA: | |
cf116634 | 10096 | case DEVLINK_PORT_FLAVOUR_UNUSED: |
08474c1a JP |
10097 | /* As CPU and DSA ports do not have a netdevice associated |
10098 | * case should not ever happen. | |
10099 | */ | |
10100 | WARN_ON(1); | |
10101 | return -EINVAL; | |
98fd2d65 | 10102 | case DEVLINK_PORT_FLAVOUR_PCI_PF: |
66b17082 PP |
10103 | if (attrs->pci_pf.external) { |
10104 | n = snprintf(name, len, "c%u", attrs->pci_pf.controller); | |
10105 | if (n >= len) | |
10106 | return -EINVAL; | |
10107 | len -= n; | |
10108 | name += n; | |
10109 | } | |
98fd2d65 PP |
10110 | n = snprintf(name, len, "pf%u", attrs->pci_pf.pf); |
10111 | break; | |
e41b6bf3 | 10112 | case DEVLINK_PORT_FLAVOUR_PCI_VF: |
66b17082 PP |
10113 | if (attrs->pci_vf.external) { |
10114 | n = snprintf(name, len, "c%u", attrs->pci_vf.controller); | |
10115 | if (n >= len) | |
10116 | return -EINVAL; | |
10117 | len -= n; | |
10118 | name += n; | |
10119 | } | |
e41b6bf3 PP |
10120 | n = snprintf(name, len, "pf%uvf%u", |
10121 | attrs->pci_vf.pf, attrs->pci_vf.vf); | |
10122 | break; | |
b8288837 | 10123 | case DEVLINK_PORT_FLAVOUR_PCI_SF: |
a1ab3e45 PP |
10124 | if (attrs->pci_sf.external) { |
10125 | n = snprintf(name, len, "c%u", attrs->pci_sf.controller); | |
10126 | if (n >= len) | |
10127 | return -EINVAL; | |
10128 | len -= n; | |
10129 | name += n; | |
10130 | } | |
b8288837 PP |
10131 | n = snprintf(name, len, "pf%usf%u", attrs->pci_sf.pf, |
10132 | attrs->pci_sf.sf); | |
10133 | break; | |
149ea30f PP |
10134 | case DEVLINK_PORT_FLAVOUR_VIRTUAL: |
10135 | return -EOPNOTSUPP; | |
08474c1a JP |
10136 | } |
10137 | ||
10138 | if (n >= len) | |
10139 | return -EINVAL; | |
10140 | ||
10141 | return 0; | |
10142 | } | |
af3836df | 10143 | |
fcdc8ce2 JP |
10144 | static int devlink_linecard_types_init(struct devlink_linecard *linecard) |
10145 | { | |
10146 | struct devlink_linecard_type *linecard_type; | |
10147 | unsigned int count; | |
10148 | int i; | |
10149 | ||
10150 | count = linecard->ops->types_count(linecard, linecard->priv); | |
10151 | linecard->types = kmalloc_array(count, sizeof(*linecard_type), | |
10152 | GFP_KERNEL); | |
10153 | if (!linecard->types) | |
10154 | return -ENOMEM; | |
10155 | linecard->types_count = count; | |
10156 | ||
10157 | for (i = 0; i < count; i++) { | |
10158 | linecard_type = &linecard->types[i]; | |
10159 | linecard->ops->types_get(linecard, linecard->priv, i, | |
10160 | &linecard_type->type, | |
10161 | &linecard_type->priv); | |
10162 | } | |
10163 | return 0; | |
10164 | } | |
10165 | ||
10166 | static void devlink_linecard_types_fini(struct devlink_linecard *linecard) | |
10167 | { | |
10168 | kfree(linecard->types); | |
10169 | } | |
10170 | ||
c246f9b5 JP |
10171 | /** |
10172 | * devlink_linecard_create - Create devlink linecard | |
10173 | * | |
10174 | * @devlink: devlink | |
10175 | * @linecard_index: driver-specific numerical identifier of the linecard | |
fcdc8ce2 JP |
10176 | * @ops: linecards ops |
10177 | * @priv: user priv pointer | |
c246f9b5 JP |
10178 | * |
10179 | * Create devlink linecard instance with provided linecard index. | |
10180 | * Caller can use any indexing, even hw-related one. | |
fcdc8ce2 JP |
10181 | * |
10182 | * Return: Line card structure or an ERR_PTR() encoded error code. | |
c246f9b5 | 10183 | */ |
fcdc8ce2 JP |
10184 | struct devlink_linecard * |
10185 | devlink_linecard_create(struct devlink *devlink, unsigned int linecard_index, | |
10186 | const struct devlink_linecard_ops *ops, void *priv) | |
c246f9b5 JP |
10187 | { |
10188 | struct devlink_linecard *linecard; | |
fcdc8ce2 JP |
10189 | int err; |
10190 | ||
10191 | if (WARN_ON(!ops || !ops->provision || !ops->unprovision || | |
10192 | !ops->types_count || !ops->types_get)) | |
10193 | return ERR_PTR(-EINVAL); | |
c246f9b5 JP |
10194 | |
10195 | mutex_lock(&devlink->linecards_lock); | |
10196 | if (devlink_linecard_index_exists(devlink, linecard_index)) { | |
10197 | mutex_unlock(&devlink->linecards_lock); | |
10198 | return ERR_PTR(-EEXIST); | |
10199 | } | |
10200 | ||
10201 | linecard = kzalloc(sizeof(*linecard), GFP_KERNEL); | |
10202 | if (!linecard) { | |
10203 | mutex_unlock(&devlink->linecards_lock); | |
10204 | return ERR_PTR(-ENOMEM); | |
10205 | } | |
10206 | ||
10207 | linecard->devlink = devlink; | |
10208 | linecard->index = linecard_index; | |
fcdc8ce2 JP |
10209 | linecard->ops = ops; |
10210 | linecard->priv = priv; | |
10211 | linecard->state = DEVLINK_LINECARD_STATE_UNPROVISIONED; | |
10212 | mutex_init(&linecard->state_lock); | |
10213 | ||
10214 | err = devlink_linecard_types_init(linecard); | |
10215 | if (err) { | |
10216 | mutex_destroy(&linecard->state_lock); | |
10217 | kfree(linecard); | |
10218 | mutex_unlock(&devlink->linecards_lock); | |
10219 | return ERR_PTR(err); | |
10220 | } | |
10221 | ||
c246f9b5 JP |
10222 | list_add_tail(&linecard->list, &devlink->linecard_list); |
10223 | refcount_set(&linecard->refcount, 1); | |
10224 | mutex_unlock(&devlink->linecards_lock); | |
10225 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
10226 | return linecard; | |
10227 | } | |
10228 | EXPORT_SYMBOL_GPL(devlink_linecard_create); | |
10229 | ||
10230 | /** | |
10231 | * devlink_linecard_destroy - Destroy devlink linecard | |
10232 | * | |
10233 | * @linecard: devlink linecard | |
10234 | */ | |
10235 | void devlink_linecard_destroy(struct devlink_linecard *linecard) | |
10236 | { | |
10237 | struct devlink *devlink = linecard->devlink; | |
10238 | ||
10239 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_DEL); | |
10240 | mutex_lock(&devlink->linecards_lock); | |
10241 | list_del(&linecard->list); | |
fcdc8ce2 | 10242 | devlink_linecard_types_fini(linecard); |
c246f9b5 JP |
10243 | mutex_unlock(&devlink->linecards_lock); |
10244 | devlink_linecard_put(linecard); | |
10245 | } | |
10246 | EXPORT_SYMBOL_GPL(devlink_linecard_destroy); | |
10247 | ||
fcdc8ce2 JP |
10248 | /** |
10249 | * devlink_linecard_provision_set - Set provisioning on linecard | |
10250 | * | |
10251 | * @linecard: devlink linecard | |
10252 | * @type: linecard type | |
10253 | * | |
10254 | * This is either called directly from the provision() op call or | |
10255 | * as a result of the provision() op call asynchronously. | |
10256 | */ | |
10257 | void devlink_linecard_provision_set(struct devlink_linecard *linecard, | |
10258 | const char *type) | |
10259 | { | |
10260 | mutex_lock(&linecard->state_lock); | |
10261 | WARN_ON(linecard->type && strcmp(linecard->type, type)); | |
10262 | linecard->state = DEVLINK_LINECARD_STATE_PROVISIONED; | |
10263 | linecard->type = type; | |
10264 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
10265 | mutex_unlock(&linecard->state_lock); | |
10266 | } | |
10267 | EXPORT_SYMBOL_GPL(devlink_linecard_provision_set); | |
10268 | ||
10269 | /** | |
10270 | * devlink_linecard_provision_clear - Clear provisioning on linecard | |
10271 | * | |
10272 | * @linecard: devlink linecard | |
10273 | * | |
10274 | * This is either called directly from the unprovision() op call or | |
10275 | * as a result of the unprovision() op call asynchronously. | |
10276 | */ | |
10277 | void devlink_linecard_provision_clear(struct devlink_linecard *linecard) | |
10278 | { | |
10279 | mutex_lock(&linecard->state_lock); | |
7b2d9a1a | 10280 | WARN_ON(linecard->nested_devlink); |
fcdc8ce2 JP |
10281 | linecard->state = DEVLINK_LINECARD_STATE_UNPROVISIONED; |
10282 | linecard->type = NULL; | |
10283 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
10284 | mutex_unlock(&linecard->state_lock); | |
10285 | } | |
10286 | EXPORT_SYMBOL_GPL(devlink_linecard_provision_clear); | |
10287 | ||
10288 | /** | |
10289 | * devlink_linecard_provision_fail - Fail provisioning on linecard | |
10290 | * | |
10291 | * @linecard: devlink linecard | |
10292 | * | |
10293 | * This is either called directly from the provision() op call or | |
10294 | * as a result of the provision() op call asynchronously. | |
10295 | */ | |
10296 | void devlink_linecard_provision_fail(struct devlink_linecard *linecard) | |
10297 | { | |
10298 | mutex_lock(&linecard->state_lock); | |
7b2d9a1a | 10299 | WARN_ON(linecard->nested_devlink); |
fcdc8ce2 JP |
10300 | linecard->state = DEVLINK_LINECARD_STATE_PROVISIONING_FAILED; |
10301 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
10302 | mutex_unlock(&linecard->state_lock); | |
10303 | } | |
10304 | EXPORT_SYMBOL_GPL(devlink_linecard_provision_fail); | |
10305 | ||
fc9f50d5 JP |
10306 | /** |
10307 | * devlink_linecard_activate - Set linecard active | |
10308 | * | |
10309 | * @linecard: devlink linecard | |
10310 | */ | |
10311 | void devlink_linecard_activate(struct devlink_linecard *linecard) | |
10312 | { | |
10313 | mutex_lock(&linecard->state_lock); | |
10314 | WARN_ON(linecard->state != DEVLINK_LINECARD_STATE_PROVISIONED); | |
10315 | linecard->state = DEVLINK_LINECARD_STATE_ACTIVE; | |
10316 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
10317 | mutex_unlock(&linecard->state_lock); | |
10318 | } | |
10319 | EXPORT_SYMBOL_GPL(devlink_linecard_activate); | |
10320 | ||
10321 | /** | |
10322 | * devlink_linecard_deactivate - Set linecard inactive | |
10323 | * | |
10324 | * @linecard: devlink linecard | |
10325 | */ | |
10326 | void devlink_linecard_deactivate(struct devlink_linecard *linecard) | |
10327 | { | |
10328 | mutex_lock(&linecard->state_lock); | |
10329 | switch (linecard->state) { | |
10330 | case DEVLINK_LINECARD_STATE_ACTIVE: | |
10331 | linecard->state = DEVLINK_LINECARD_STATE_PROVISIONED; | |
10332 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
10333 | break; | |
10334 | case DEVLINK_LINECARD_STATE_UNPROVISIONING: | |
10335 | /* Line card is being deactivated as part | |
10336 | * of unprovisioning flow. | |
10337 | */ | |
10338 | break; | |
10339 | default: | |
10340 | WARN_ON(1); | |
10341 | break; | |
10342 | } | |
10343 | mutex_unlock(&linecard->state_lock); | |
10344 | } | |
10345 | EXPORT_SYMBOL_GPL(devlink_linecard_deactivate); | |
10346 | ||
7b2d9a1a JP |
10347 | /** |
10348 | * devlink_linecard_nested_dl_set - Attach/detach nested devlink | |
10349 | * instance to linecard. | |
10350 | * | |
10351 | * @linecard: devlink linecard | |
10352 | * @nested_devlink: devlink instance to attach or NULL to detach | |
10353 | */ | |
10354 | void devlink_linecard_nested_dl_set(struct devlink_linecard *linecard, | |
10355 | struct devlink *nested_devlink) | |
10356 | { | |
10357 | mutex_lock(&linecard->state_lock); | |
10358 | linecard->nested_devlink = nested_devlink; | |
10359 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
10360 | mutex_unlock(&linecard->state_lock); | |
10361 | } | |
10362 | EXPORT_SYMBOL_GPL(devlink_linecard_nested_dl_set); | |
10363 | ||
755cfa69 JP |
10364 | int devl_sb_register(struct devlink *devlink, unsigned int sb_index, |
10365 | u32 size, u16 ingress_pools_count, | |
10366 | u16 egress_pools_count, u16 ingress_tc_count, | |
10367 | u16 egress_tc_count) | |
bf797471 JP |
10368 | { |
10369 | struct devlink_sb *devlink_sb; | |
bf797471 | 10370 | |
755cfa69 JP |
10371 | lockdep_assert_held(&devlink->lock); |
10372 | ||
10373 | if (devlink_sb_index_exists(devlink, sb_index)) | |
10374 | return -EEXIST; | |
bf797471 JP |
10375 | |
10376 | devlink_sb = kzalloc(sizeof(*devlink_sb), GFP_KERNEL); | |
755cfa69 JP |
10377 | if (!devlink_sb) |
10378 | return -ENOMEM; | |
bf797471 JP |
10379 | devlink_sb->index = sb_index; |
10380 | devlink_sb->size = size; | |
10381 | devlink_sb->ingress_pools_count = ingress_pools_count; | |
10382 | devlink_sb->egress_pools_count = egress_pools_count; | |
10383 | devlink_sb->ingress_tc_count = ingress_tc_count; | |
10384 | devlink_sb->egress_tc_count = egress_tc_count; | |
10385 | list_add_tail(&devlink_sb->list, &devlink->sb_list); | |
755cfa69 JP |
10386 | return 0; |
10387 | } | |
10388 | EXPORT_SYMBOL_GPL(devl_sb_register); | |
10389 | ||
10390 | int devlink_sb_register(struct devlink *devlink, unsigned int sb_index, | |
10391 | u32 size, u16 ingress_pools_count, | |
10392 | u16 egress_pools_count, u16 ingress_tc_count, | |
10393 | u16 egress_tc_count) | |
10394 | { | |
10395 | int err; | |
10396 | ||
10397 | devl_lock(devlink); | |
10398 | err = devl_sb_register(devlink, sb_index, size, ingress_pools_count, | |
10399 | egress_pools_count, ingress_tc_count, | |
10400 | egress_tc_count); | |
7715023a | 10401 | devl_unlock(devlink); |
bf797471 JP |
10402 | return err; |
10403 | } | |
10404 | EXPORT_SYMBOL_GPL(devlink_sb_register); | |
10405 | ||
755cfa69 | 10406 | void devl_sb_unregister(struct devlink *devlink, unsigned int sb_index) |
bf797471 JP |
10407 | { |
10408 | struct devlink_sb *devlink_sb; | |
10409 | ||
755cfa69 JP |
10410 | lockdep_assert_held(&devlink->lock); |
10411 | ||
bf797471 JP |
10412 | devlink_sb = devlink_sb_get_by_index(devlink, sb_index); |
10413 | WARN_ON(!devlink_sb); | |
10414 | list_del(&devlink_sb->list); | |
bf797471 JP |
10415 | kfree(devlink_sb); |
10416 | } | |
755cfa69 JP |
10417 | EXPORT_SYMBOL_GPL(devl_sb_unregister); |
10418 | ||
10419 | void devlink_sb_unregister(struct devlink *devlink, unsigned int sb_index) | |
10420 | { | |
10421 | devl_lock(devlink); | |
10422 | devl_sb_unregister(devlink, sb_index); | |
10423 | devl_unlock(devlink); | |
10424 | } | |
bf797471 JP |
10425 | EXPORT_SYMBOL_GPL(devlink_sb_unregister); |
10426 | ||
70a2ff89 JP |
10427 | /** |
10428 | * devl_dpipe_headers_register - register dpipe headers | |
10429 | * | |
10430 | * @devlink: devlink | |
10431 | * @dpipe_headers: dpipe header array | |
10432 | * | |
10433 | * Register the headers supported by hardware. | |
10434 | */ | |
10435 | void devl_dpipe_headers_register(struct devlink *devlink, | |
10436 | struct devlink_dpipe_headers *dpipe_headers) | |
10437 | { | |
10438 | lockdep_assert_held(&devlink->lock); | |
10439 | ||
10440 | devlink->dpipe_headers = dpipe_headers; | |
10441 | } | |
10442 | EXPORT_SYMBOL_GPL(devl_dpipe_headers_register); | |
10443 | ||
70a2ff89 JP |
10444 | /** |
10445 | * devl_dpipe_headers_unregister - unregister dpipe headers | |
10446 | * | |
10447 | * @devlink: devlink | |
10448 | * | |
10449 | * Unregister the headers supported by hardware. | |
10450 | */ | |
10451 | void devl_dpipe_headers_unregister(struct devlink *devlink) | |
10452 | { | |
10453 | lockdep_assert_held(&devlink->lock); | |
10454 | ||
10455 | devlink->dpipe_headers = NULL; | |
10456 | } | |
10457 | EXPORT_SYMBOL_GPL(devl_dpipe_headers_unregister); | |
10458 | ||
1555d204 AS |
10459 | /** |
10460 | * devlink_dpipe_table_counter_enabled - check if counter allocation | |
10461 | * required | |
10462 | * @devlink: devlink | |
10463 | * @table_name: tables name | |
10464 | * | |
10465 | * Used by driver to check if counter allocation is required. | |
10466 | * After counter allocation is turned on the table entries | |
10467 | * are updated to include counter statistics. | |
10468 | * | |
10469 | * After that point on the driver must respect the counter | |
10470 | * state so that each entry added to the table is added | |
10471 | * with a counter. | |
10472 | */ | |
10473 | bool devlink_dpipe_table_counter_enabled(struct devlink *devlink, | |
10474 | const char *table_name) | |
10475 | { | |
10476 | struct devlink_dpipe_table *table; | |
10477 | bool enabled; | |
10478 | ||
10479 | rcu_read_lock(); | |
10480 | table = devlink_dpipe_table_find(&devlink->dpipe_table_list, | |
2eb51c75 | 10481 | table_name, devlink); |
1555d204 AS |
10482 | enabled = false; |
10483 | if (table) | |
10484 | enabled = table->counters_enabled; | |
10485 | rcu_read_unlock(); | |
10486 | return enabled; | |
10487 | } | |
10488 | EXPORT_SYMBOL_GPL(devlink_dpipe_table_counter_enabled); | |
10489 | ||
10490 | /** | |
70a2ff89 | 10491 | * devl_dpipe_table_register - register dpipe table |
1555d204 | 10492 | * |
70a2ff89 JP |
10493 | * @devlink: devlink |
10494 | * @table_name: table name | |
10495 | * @table_ops: table ops | |
10496 | * @priv: priv | |
10497 | * @counter_control_extern: external control for counters | |
1555d204 | 10498 | */ |
70a2ff89 JP |
10499 | int devl_dpipe_table_register(struct devlink *devlink, |
10500 | const char *table_name, | |
10501 | struct devlink_dpipe_table_ops *table_ops, | |
10502 | void *priv, bool counter_control_extern) | |
1555d204 AS |
10503 | { |
10504 | struct devlink_dpipe_table *table; | |
70a2ff89 JP |
10505 | |
10506 | lockdep_assert_held(&devlink->lock); | |
1555d204 | 10507 | |
ffd3cdcc AS |
10508 | if (WARN_ON(!table_ops->size_get)) |
10509 | return -EINVAL; | |
10510 | ||
2eb51c75 | 10511 | if (devlink_dpipe_table_find(&devlink->dpipe_table_list, table_name, |
70a2ff89 JP |
10512 | devlink)) |
10513 | return -EEXIST; | |
6132c1d9 | 10514 | |
1555d204 | 10515 | table = kzalloc(sizeof(*table), GFP_KERNEL); |
70a2ff89 JP |
10516 | if (!table) |
10517 | return -ENOMEM; | |
1555d204 AS |
10518 | |
10519 | table->name = table_name; | |
10520 | table->table_ops = table_ops; | |
10521 | table->priv = priv; | |
1555d204 AS |
10522 | table->counter_control_extern = counter_control_extern; |
10523 | ||
1555d204 | 10524 | list_add_tail_rcu(&table->list, &devlink->dpipe_table_list); |
70a2ff89 JP |
10525 | |
10526 | return 0; | |
10527 | } | |
10528 | EXPORT_SYMBOL_GPL(devl_dpipe_table_register); | |
10529 | ||
1555d204 | 10530 | /** |
70a2ff89 | 10531 | * devl_dpipe_table_unregister - unregister dpipe table |
1555d204 | 10532 | * |
70a2ff89 JP |
10533 | * @devlink: devlink |
10534 | * @table_name: table name | |
1555d204 | 10535 | */ |
70a2ff89 JP |
10536 | void devl_dpipe_table_unregister(struct devlink *devlink, |
10537 | const char *table_name) | |
1555d204 AS |
10538 | { |
10539 | struct devlink_dpipe_table *table; | |
10540 | ||
70a2ff89 JP |
10541 | lockdep_assert_held(&devlink->lock); |
10542 | ||
1555d204 | 10543 | table = devlink_dpipe_table_find(&devlink->dpipe_table_list, |
2eb51c75 | 10544 | table_name, devlink); |
1555d204 | 10545 | if (!table) |
70a2ff89 | 10546 | return; |
1555d204 | 10547 | list_del_rcu(&table->list); |
1555d204 | 10548 | kfree_rcu(table, rcu); |
70a2ff89 JP |
10549 | } |
10550 | EXPORT_SYMBOL_GPL(devl_dpipe_table_unregister); | |
10551 | ||
d9f9b9a4 | 10552 | /** |
c223d6a4 | 10553 | * devl_resource_register - devlink resource register |
d9f9b9a4 | 10554 | * |
c223d6a4 JP |
10555 | * @devlink: devlink |
10556 | * @resource_name: resource's name | |
10557 | * @resource_size: resource's size | |
10558 | * @resource_id: resource's id | |
10559 | * @parent_resource_id: resource's parent id | |
10560 | * @size_params: size parameters | |
321f7ab0 | 10561 | * |
c223d6a4 JP |
10562 | * Generic resources should reuse the same names across drivers. |
10563 | * Please see the generic resources list at: | |
10564 | * Documentation/networking/devlink/devlink-resource.rst | |
d9f9b9a4 | 10565 | */ |
c223d6a4 JP |
10566 | int devl_resource_register(struct devlink *devlink, |
10567 | const char *resource_name, | |
10568 | u64 resource_size, | |
10569 | u64 resource_id, | |
10570 | u64 parent_resource_id, | |
10571 | const struct devlink_resource_size_params *size_params) | |
d9f9b9a4 AS |
10572 | { |
10573 | struct devlink_resource *resource; | |
10574 | struct list_head *resource_list; | |
14530746 | 10575 | bool top_hierarchy; |
c223d6a4 JP |
10576 | |
10577 | lockdep_assert_held(&devlink->lock); | |
d9f9b9a4 | 10578 | |
14530746 DA |
10579 | top_hierarchy = parent_resource_id == DEVLINK_RESOURCE_ID_PARENT_TOP; |
10580 | ||
d9f9b9a4 | 10581 | resource = devlink_resource_find(devlink, NULL, resource_id); |
c223d6a4 JP |
10582 | if (resource) |
10583 | return -EINVAL; | |
d9f9b9a4 AS |
10584 | |
10585 | resource = kzalloc(sizeof(*resource), GFP_KERNEL); | |
c223d6a4 JP |
10586 | if (!resource) |
10587 | return -ENOMEM; | |
d9f9b9a4 AS |
10588 | |
10589 | if (top_hierarchy) { | |
10590 | resource_list = &devlink->resource_list; | |
10591 | } else { | |
10592 | struct devlink_resource *parent_resource; | |
10593 | ||
10594 | parent_resource = devlink_resource_find(devlink, NULL, | |
10595 | parent_resource_id); | |
10596 | if (parent_resource) { | |
10597 | resource_list = &parent_resource->resource_list; | |
10598 | resource->parent = parent_resource; | |
10599 | } else { | |
b75703de | 10600 | kfree(resource); |
c223d6a4 | 10601 | return -EINVAL; |
d9f9b9a4 AS |
10602 | } |
10603 | } | |
10604 | ||
10605 | resource->name = resource_name; | |
10606 | resource->size = resource_size; | |
10607 | resource->size_new = resource_size; | |
10608 | resource->id = resource_id; | |
d9f9b9a4 | 10609 | resource->size_valid = true; |
77d27096 JP |
10610 | memcpy(&resource->size_params, size_params, |
10611 | sizeof(resource->size_params)); | |
d9f9b9a4 AS |
10612 | INIT_LIST_HEAD(&resource->resource_list); |
10613 | list_add_tail(&resource->list, resource_list); | |
c223d6a4 JP |
10614 | |
10615 | return 0; | |
10616 | } | |
10617 | EXPORT_SYMBOL_GPL(devl_resource_register); | |
10618 | ||
10619 | /** | |
10620 | * devlink_resource_register - devlink resource register | |
10621 | * | |
10622 | * @devlink: devlink | |
10623 | * @resource_name: resource's name | |
10624 | * @resource_size: resource's size | |
10625 | * @resource_id: resource's id | |
10626 | * @parent_resource_id: resource's parent id | |
10627 | * @size_params: size parameters | |
10628 | * | |
10629 | * Generic resources should reuse the same names across drivers. | |
10630 | * Please see the generic resources list at: | |
10631 | * Documentation/networking/devlink/devlink-resource.rst | |
10632 | * | |
10633 | * Context: Takes and release devlink->lock <mutex>. | |
10634 | */ | |
10635 | int devlink_resource_register(struct devlink *devlink, | |
10636 | const char *resource_name, | |
10637 | u64 resource_size, | |
10638 | u64 resource_id, | |
10639 | u64 parent_resource_id, | |
10640 | const struct devlink_resource_size_params *size_params) | |
10641 | { | |
10642 | int err; | |
10643 | ||
10644 | devl_lock(devlink); | |
10645 | err = devl_resource_register(devlink, resource_name, resource_size, | |
10646 | resource_id, parent_resource_id, size_params); | |
7715023a | 10647 | devl_unlock(devlink); |
d9f9b9a4 AS |
10648 | return err; |
10649 | } | |
10650 | EXPORT_SYMBOL_GPL(devlink_resource_register); | |
10651 | ||
4c897cfc LR |
10652 | static void devlink_resource_unregister(struct devlink *devlink, |
10653 | struct devlink_resource *resource) | |
10654 | { | |
10655 | struct devlink_resource *tmp, *child_resource; | |
10656 | ||
10657 | list_for_each_entry_safe(child_resource, tmp, &resource->resource_list, | |
10658 | list) { | |
10659 | devlink_resource_unregister(devlink, child_resource); | |
10660 | list_del(&child_resource->list); | |
10661 | kfree(child_resource); | |
10662 | } | |
10663 | } | |
10664 | ||
d9f9b9a4 | 10665 | /** |
c223d6a4 | 10666 | * devl_resources_unregister - free all resources |
d9f9b9a4 | 10667 | * |
c223d6a4 | 10668 | * @devlink: devlink |
d9f9b9a4 | 10669 | */ |
c223d6a4 | 10670 | void devl_resources_unregister(struct devlink *devlink) |
d9f9b9a4 AS |
10671 | { |
10672 | struct devlink_resource *tmp, *child_resource; | |
d9f9b9a4 | 10673 | |
c223d6a4 | 10674 | lockdep_assert_held(&devlink->lock); |
d9f9b9a4 | 10675 | |
4c897cfc LR |
10676 | list_for_each_entry_safe(child_resource, tmp, &devlink->resource_list, |
10677 | list) { | |
10678 | devlink_resource_unregister(devlink, child_resource); | |
d9f9b9a4 AS |
10679 | list_del(&child_resource->list); |
10680 | kfree(child_resource); | |
10681 | } | |
c223d6a4 JP |
10682 | } |
10683 | EXPORT_SYMBOL_GPL(devl_resources_unregister); | |
d9f9b9a4 | 10684 | |
c223d6a4 JP |
10685 | /** |
10686 | * devlink_resources_unregister - free all resources | |
10687 | * | |
10688 | * @devlink: devlink | |
10689 | * | |
10690 | * Context: Takes and release devlink->lock <mutex>. | |
10691 | */ | |
10692 | void devlink_resources_unregister(struct devlink *devlink) | |
10693 | { | |
10694 | devl_lock(devlink); | |
10695 | devl_resources_unregister(devlink); | |
7715023a | 10696 | devl_unlock(devlink); |
d9f9b9a4 AS |
10697 | } |
10698 | EXPORT_SYMBOL_GPL(devlink_resources_unregister); | |
10699 | ||
c223d6a4 JP |
10700 | /** |
10701 | * devl_resource_size_get - get and update size | |
10702 | * | |
10703 | * @devlink: devlink | |
10704 | * @resource_id: the requested resource id | |
10705 | * @p_resource_size: ptr to update | |
10706 | */ | |
10707 | int devl_resource_size_get(struct devlink *devlink, | |
10708 | u64 resource_id, | |
10709 | u64 *p_resource_size) | |
10710 | { | |
10711 | struct devlink_resource *resource; | |
10712 | ||
10713 | lockdep_assert_held(&devlink->lock); | |
10714 | ||
10715 | resource = devlink_resource_find(devlink, NULL, resource_id); | |
10716 | if (!resource) | |
10717 | return -EINVAL; | |
10718 | *p_resource_size = resource->size_new; | |
10719 | resource->size = resource->size_new; | |
10720 | return 0; | |
10721 | } | |
10722 | EXPORT_SYMBOL_GPL(devl_resource_size_get); | |
10723 | ||
70a2ff89 JP |
10724 | /** |
10725 | * devl_dpipe_table_resource_set - set the resource id | |
10726 | * | |
10727 | * @devlink: devlink | |
10728 | * @table_name: table name | |
10729 | * @resource_id: resource id | |
10730 | * @resource_units: number of resource's units consumed per table's entry | |
10731 | */ | |
10732 | int devl_dpipe_table_resource_set(struct devlink *devlink, | |
10733 | const char *table_name, u64 resource_id, | |
10734 | u64 resource_units) | |
10735 | { | |
10736 | struct devlink_dpipe_table *table; | |
10737 | ||
10738 | table = devlink_dpipe_table_find(&devlink->dpipe_table_list, | |
10739 | table_name, devlink); | |
10740 | if (!table) | |
10741 | return -EINVAL; | |
10742 | ||
10743 | table->resource_id = resource_id; | |
10744 | table->resource_units = resource_units; | |
10745 | table->resource_valid = true; | |
10746 | return 0; | |
10747 | } | |
10748 | EXPORT_SYMBOL_GPL(devl_dpipe_table_resource_set); | |
10749 | ||
c223d6a4 JP |
10750 | /** |
10751 | * devl_resource_occ_get_register - register occupancy getter | |
10752 | * | |
10753 | * @devlink: devlink | |
10754 | * @resource_id: resource id | |
10755 | * @occ_get: occupancy getter callback | |
10756 | * @occ_get_priv: occupancy getter callback priv | |
10757 | */ | |
10758 | void devl_resource_occ_get_register(struct devlink *devlink, | |
10759 | u64 resource_id, | |
10760 | devlink_resource_occ_get_t *occ_get, | |
10761 | void *occ_get_priv) | |
10762 | { | |
10763 | struct devlink_resource *resource; | |
10764 | ||
10765 | lockdep_assert_held(&devlink->lock); | |
10766 | ||
10767 | resource = devlink_resource_find(devlink, NULL, resource_id); | |
10768 | if (WARN_ON(!resource)) | |
10769 | return; | |
10770 | WARN_ON(resource->occ_get); | |
10771 | ||
10772 | resource->occ_get = occ_get; | |
10773 | resource->occ_get_priv = occ_get_priv; | |
10774 | } | |
10775 | EXPORT_SYMBOL_GPL(devl_resource_occ_get_register); | |
10776 | ||
fc56be47 JP |
10777 | /** |
10778 | * devlink_resource_occ_get_register - register occupancy getter | |
10779 | * | |
10780 | * @devlink: devlink | |
10781 | * @resource_id: resource id | |
10782 | * @occ_get: occupancy getter callback | |
10783 | * @occ_get_priv: occupancy getter callback priv | |
c223d6a4 JP |
10784 | * |
10785 | * Context: Takes and release devlink->lock <mutex>. | |
fc56be47 JP |
10786 | */ |
10787 | void devlink_resource_occ_get_register(struct devlink *devlink, | |
10788 | u64 resource_id, | |
10789 | devlink_resource_occ_get_t *occ_get, | |
10790 | void *occ_get_priv) | |
10791 | { | |
7715023a | 10792 | devl_lock(devlink); |
c223d6a4 JP |
10793 | devl_resource_occ_get_register(devlink, resource_id, |
10794 | occ_get, occ_get_priv); | |
7715023a | 10795 | devl_unlock(devlink); |
fc56be47 JP |
10796 | } |
10797 | EXPORT_SYMBOL_GPL(devlink_resource_occ_get_register); | |
10798 | ||
10799 | /** | |
c223d6a4 | 10800 | * devl_resource_occ_get_unregister - unregister occupancy getter |
fc56be47 | 10801 | * |
c223d6a4 JP |
10802 | * @devlink: devlink |
10803 | * @resource_id: resource id | |
fc56be47 | 10804 | */ |
c223d6a4 JP |
10805 | void devl_resource_occ_get_unregister(struct devlink *devlink, |
10806 | u64 resource_id) | |
fc56be47 JP |
10807 | { |
10808 | struct devlink_resource *resource; | |
10809 | ||
c223d6a4 JP |
10810 | lockdep_assert_held(&devlink->lock); |
10811 | ||
fc56be47 JP |
10812 | resource = devlink_resource_find(devlink, NULL, resource_id); |
10813 | if (WARN_ON(!resource)) | |
c223d6a4 | 10814 | return; |
fc56be47 JP |
10815 | WARN_ON(!resource->occ_get); |
10816 | ||
10817 | resource->occ_get = NULL; | |
10818 | resource->occ_get_priv = NULL; | |
c223d6a4 JP |
10819 | } |
10820 | EXPORT_SYMBOL_GPL(devl_resource_occ_get_unregister); | |
10821 | ||
10822 | /** | |
10823 | * devlink_resource_occ_get_unregister - unregister occupancy getter | |
10824 | * | |
10825 | * @devlink: devlink | |
10826 | * @resource_id: resource id | |
10827 | * | |
10828 | * Context: Takes and release devlink->lock <mutex>. | |
10829 | */ | |
10830 | void devlink_resource_occ_get_unregister(struct devlink *devlink, | |
10831 | u64 resource_id) | |
10832 | { | |
10833 | devl_lock(devlink); | |
10834 | devl_resource_occ_get_unregister(devlink, resource_id); | |
7715023a | 10835 | devl_unlock(devlink); |
fc56be47 JP |
10836 | } |
10837 | EXPORT_SYMBOL_GPL(devlink_resource_occ_get_unregister); | |
10838 | ||
39e6160e VV |
10839 | static int devlink_param_verify(const struct devlink_param *param) |
10840 | { | |
10841 | if (!param || !param->name || !param->supported_cmodes) | |
10842 | return -EINVAL; | |
10843 | if (param->generic) | |
10844 | return devlink_param_generic_verify(param); | |
10845 | else | |
10846 | return devlink_param_driver_verify(param); | |
10847 | } | |
10848 | ||
39e6160e VV |
10849 | /** |
10850 | * devlink_params_register - register configuration parameters | |
10851 | * | |
10852 | * @devlink: devlink | |
10853 | * @params: configuration parameters array | |
10854 | * @params_count: number of parameters provided | |
10855 | * | |
10856 | * Register the configuration parameters supported by the driver. | |
10857 | */ | |
10858 | int devlink_params_register(struct devlink *devlink, | |
10859 | const struct devlink_param *params, | |
10860 | size_t params_count) | |
10861 | { | |
ee775b56 LR |
10862 | const struct devlink_param *param = params; |
10863 | int i, err; | |
10864 | ||
7a690ad4 LR |
10865 | ASSERT_DEVLINK_NOT_REGISTERED(devlink); |
10866 | ||
ee775b56 LR |
10867 | for (i = 0; i < params_count; i++, param++) { |
10868 | err = devlink_param_register(devlink, param); | |
10869 | if (err) | |
10870 | goto rollback; | |
10871 | } | |
10872 | return 0; | |
10873 | ||
10874 | rollback: | |
10875 | if (!i) | |
10876 | return err; | |
10877 | ||
10878 | for (param--; i > 0; i--, param--) | |
10879 | devlink_param_unregister(devlink, param); | |
10880 | return err; | |
39e6160e | 10881 | } |
eabaef18 MS |
10882 | EXPORT_SYMBOL_GPL(devlink_params_register); |
10883 | ||
10884 | /** | |
10885 | * devlink_params_unregister - unregister configuration parameters | |
10886 | * @devlink: devlink | |
10887 | * @params: configuration parameters to unregister | |
10888 | * @params_count: number of parameters provided | |
10889 | */ | |
10890 | void devlink_params_unregister(struct devlink *devlink, | |
10891 | const struct devlink_param *params, | |
10892 | size_t params_count) | |
10893 | { | |
ee775b56 LR |
10894 | const struct devlink_param *param = params; |
10895 | int i; | |
10896 | ||
7a690ad4 LR |
10897 | ASSERT_DEVLINK_NOT_REGISTERED(devlink); |
10898 | ||
ee775b56 LR |
10899 | for (i = 0; i < params_count; i++, param++) |
10900 | devlink_param_unregister(devlink, param); | |
eabaef18 MS |
10901 | } |
10902 | EXPORT_SYMBOL_GPL(devlink_params_unregister); | |
10903 | ||
b40c51ef PP |
10904 | /** |
10905 | * devlink_param_register - register one configuration parameter | |
10906 | * | |
10907 | * @devlink: devlink | |
10908 | * @param: one configuration parameter | |
10909 | * | |
10910 | * Register the configuration parameter supported by the driver. | |
10911 | * Return: returns 0 on successful registration or error code otherwise. | |
10912 | */ | |
10913 | int devlink_param_register(struct devlink *devlink, | |
10914 | const struct devlink_param *param) | |
10915 | { | |
ee775b56 | 10916 | struct devlink_param_item *param_item; |
b40c51ef | 10917 | |
7a690ad4 LR |
10918 | ASSERT_DEVLINK_NOT_REGISTERED(devlink); |
10919 | ||
ee775b56 LR |
10920 | WARN_ON(devlink_param_verify(param)); |
10921 | WARN_ON(devlink_param_find_by_name(&devlink->param_list, param->name)); | |
10922 | ||
10923 | if (param->supported_cmodes == BIT(DEVLINK_PARAM_CMODE_DRIVERINIT)) | |
10924 | WARN_ON(param->get || param->set); | |
10925 | else | |
10926 | WARN_ON(!param->get || !param->set); | |
10927 | ||
10928 | param_item = kzalloc(sizeof(*param_item), GFP_KERNEL); | |
10929 | if (!param_item) | |
10930 | return -ENOMEM; | |
10931 | ||
10932 | param_item->param = param; | |
10933 | ||
10934 | list_add_tail(¶m_item->list, &devlink->param_list); | |
10935 | return 0; | |
b40c51ef PP |
10936 | } |
10937 | EXPORT_SYMBOL_GPL(devlink_param_register); | |
10938 | ||
10939 | /** | |
10940 | * devlink_param_unregister - unregister one configuration parameter | |
10941 | * @devlink: devlink | |
10942 | * @param: configuration parameter to unregister | |
10943 | */ | |
10944 | void devlink_param_unregister(struct devlink *devlink, | |
10945 | const struct devlink_param *param) | |
10946 | { | |
ee775b56 LR |
10947 | struct devlink_param_item *param_item; |
10948 | ||
7a690ad4 LR |
10949 | ASSERT_DEVLINK_NOT_REGISTERED(devlink); |
10950 | ||
ee775b56 LR |
10951 | param_item = |
10952 | devlink_param_find_by_name(&devlink->param_list, param->name); | |
10953 | WARN_ON(!param_item); | |
10954 | list_del(¶m_item->list); | |
10955 | kfree(param_item); | |
b40c51ef PP |
10956 | } |
10957 | EXPORT_SYMBOL_GPL(devlink_param_unregister); | |
10958 | ||
8ba024df LR |
10959 | /** |
10960 | * devlink_param_driverinit_value_get - get configuration parameter | |
10961 | * value for driver initializing | |
10962 | * | |
10963 | * @devlink: devlink | |
10964 | * @param_id: parameter ID | |
10965 | * @init_val: value of parameter in driverinit configuration mode | |
10966 | * | |
10967 | * This function should be used by the driver to get driverinit | |
10968 | * configuration for initialization after reload command. | |
10969 | */ | |
10970 | int devlink_param_driverinit_value_get(struct devlink *devlink, u32 param_id, | |
10971 | union devlink_param_value *init_val) | |
ec01aeb1 MS |
10972 | { |
10973 | struct devlink_param_item *param_item; | |
10974 | ||
8ba024df LR |
10975 | if (!devlink_reload_supported(devlink->ops)) |
10976 | return -EOPNOTSUPP; | |
10977 | ||
10978 | param_item = devlink_param_find_by_id(&devlink->param_list, param_id); | |
ec01aeb1 MS |
10979 | if (!param_item) |
10980 | return -EINVAL; | |
10981 | ||
10982 | if (!param_item->driverinit_value_valid || | |
10983 | !devlink_param_cmode_is_supported(param_item->param, | |
10984 | DEVLINK_PARAM_CMODE_DRIVERINIT)) | |
10985 | return -EOPNOTSUPP; | |
10986 | ||
1276534c MS |
10987 | if (param_item->param->type == DEVLINK_PARAM_TYPE_STRING) |
10988 | strcpy(init_val->vstr, param_item->driverinit_value.vstr); | |
10989 | else | |
10990 | *init_val = param_item->driverinit_value; | |
ec01aeb1 MS |
10991 | |
10992 | return 0; | |
10993 | } | |
8ba024df | 10994 | EXPORT_SYMBOL_GPL(devlink_param_driverinit_value_get); |
ffd19b9a | 10995 | |
8ba024df LR |
10996 | /** |
10997 | * devlink_param_driverinit_value_set - set value of configuration | |
10998 | * parameter for driverinit | |
10999 | * configuration mode | |
11000 | * | |
11001 | * @devlink: devlink | |
11002 | * @param_id: parameter ID | |
11003 | * @init_val: value of parameter to set for driverinit configuration mode | |
11004 | * | |
11005 | * This function should be used by the driver to set driverinit | |
11006 | * configuration mode default value. | |
11007 | */ | |
11008 | int devlink_param_driverinit_value_set(struct devlink *devlink, u32 param_id, | |
11009 | union devlink_param_value init_val) | |
5473a7bd VV |
11010 | { |
11011 | struct devlink_param_item *param_item; | |
11012 | ||
7a690ad4 LR |
11013 | ASSERT_DEVLINK_NOT_REGISTERED(devlink); |
11014 | ||
8ba024df | 11015 | param_item = devlink_param_find_by_id(&devlink->param_list, param_id); |
5473a7bd VV |
11016 | if (!param_item) |
11017 | return -EINVAL; | |
11018 | ||
11019 | if (!devlink_param_cmode_is_supported(param_item->param, | |
11020 | DEVLINK_PARAM_CMODE_DRIVERINIT)) | |
11021 | return -EOPNOTSUPP; | |
11022 | ||
11023 | if (param_item->param->type == DEVLINK_PARAM_TYPE_STRING) | |
11024 | strcpy(param_item->driverinit_value.vstr, init_val.vstr); | |
11025 | else | |
11026 | param_item->driverinit_value = init_val; | |
11027 | param_item->driverinit_value_valid = true; | |
5473a7bd VV |
11028 | return 0; |
11029 | } | |
ec01aeb1 MS |
11030 | EXPORT_SYMBOL_GPL(devlink_param_driverinit_value_set); |
11031 | ||
ea601e17 MS |
11032 | /** |
11033 | * devlink_param_value_changed - notify devlink on a parameter's value | |
11034 | * change. Should be called by the driver | |
11035 | * right after the change. | |
11036 | * | |
11037 | * @devlink: devlink | |
11038 | * @param_id: parameter ID | |
11039 | * | |
11040 | * This function should be used by the driver to notify devlink on value | |
11041 | * change, excluding driverinit configuration mode. | |
11042 | * For driverinit configuration mode driver should use the function | |
ea601e17 MS |
11043 | */ |
11044 | void devlink_param_value_changed(struct devlink *devlink, u32 param_id) | |
11045 | { | |
11046 | struct devlink_param_item *param_item; | |
11047 | ||
11048 | param_item = devlink_param_find_by_id(&devlink->param_list, param_id); | |
11049 | WARN_ON(!param_item); | |
11050 | ||
c1e5786d | 11051 | devlink_param_notify(devlink, 0, param_item, DEVLINK_CMD_PARAM_NEW); |
ea601e17 MS |
11052 | } |
11053 | EXPORT_SYMBOL_GPL(devlink_param_value_changed); | |
11054 | ||
b16ebe92 | 11055 | /** |
eb0e9fa2 | 11056 | * devl_region_create - create a new address region |
b16ebe92 | 11057 | * |
eb0e9fa2 JP |
11058 | * @devlink: devlink |
11059 | * @ops: region operations and name | |
11060 | * @region_max_snapshots: Maximum supported number of snapshots for region | |
11061 | * @region_size: size of region | |
b16ebe92 | 11062 | */ |
eb0e9fa2 JP |
11063 | struct devlink_region *devl_region_create(struct devlink *devlink, |
11064 | const struct devlink_region_ops *ops, | |
11065 | u32 region_max_snapshots, | |
11066 | u64 region_size) | |
b16ebe92 AV |
11067 | { |
11068 | struct devlink_region *region; | |
eb0e9fa2 JP |
11069 | |
11070 | devl_assert_locked(devlink); | |
b16ebe92 | 11071 | |
a0a09f6b JK |
11072 | if (WARN_ON(!ops) || WARN_ON(!ops->destructor)) |
11073 | return ERR_PTR(-EINVAL); | |
11074 | ||
eb0e9fa2 JP |
11075 | if (devlink_region_get_by_name(devlink, ops->name)) |
11076 | return ERR_PTR(-EEXIST); | |
b16ebe92 AV |
11077 | |
11078 | region = kzalloc(sizeof(*region), GFP_KERNEL); | |
eb0e9fa2 JP |
11079 | if (!region) |
11080 | return ERR_PTR(-ENOMEM); | |
b16ebe92 AV |
11081 | |
11082 | region->devlink = devlink; | |
11083 | region->max_snapshots = region_max_snapshots; | |
e8937681 | 11084 | region->ops = ops; |
b16ebe92 AV |
11085 | region->size = region_size; |
11086 | INIT_LIST_HEAD(®ion->snapshot_list); | |
11087 | list_add_tail(®ion->list, &devlink->region_list); | |
866319bb | 11088 | devlink_nl_region_notify(region, NULL, DEVLINK_CMD_REGION_NEW); |
b16ebe92 | 11089 | |
b16ebe92 | 11090 | return region; |
eb0e9fa2 JP |
11091 | } |
11092 | EXPORT_SYMBOL_GPL(devl_region_create); | |
b16ebe92 | 11093 | |
eb0e9fa2 JP |
11094 | /** |
11095 | * devlink_region_create - create a new address region | |
11096 | * | |
11097 | * @devlink: devlink | |
11098 | * @ops: region operations and name | |
11099 | * @region_max_snapshots: Maximum supported number of snapshots for region | |
11100 | * @region_size: size of region | |
11101 | * | |
11102 | * Context: Takes and release devlink->lock <mutex>. | |
11103 | */ | |
11104 | struct devlink_region * | |
11105 | devlink_region_create(struct devlink *devlink, | |
11106 | const struct devlink_region_ops *ops, | |
11107 | u32 region_max_snapshots, u64 region_size) | |
11108 | { | |
11109 | struct devlink_region *region; | |
11110 | ||
11111 | devl_lock(devlink); | |
11112 | region = devl_region_create(devlink, ops, region_max_snapshots, | |
11113 | region_size); | |
7715023a | 11114 | devl_unlock(devlink); |
eb0e9fa2 | 11115 | return region; |
b16ebe92 AV |
11116 | } |
11117 | EXPORT_SYMBOL_GPL(devlink_region_create); | |
11118 | ||
544e7c33 AL |
11119 | /** |
11120 | * devlink_port_region_create - create a new address region for a port | |
11121 | * | |
11122 | * @port: devlink port | |
11123 | * @ops: region operations and name | |
11124 | * @region_max_snapshots: Maximum supported number of snapshots for region | |
11125 | * @region_size: size of region | |
eb0e9fa2 JP |
11126 | * |
11127 | * Context: Takes and release devlink->lock <mutex>. | |
544e7c33 AL |
11128 | */ |
11129 | struct devlink_region * | |
11130 | devlink_port_region_create(struct devlink_port *port, | |
11131 | const struct devlink_port_region_ops *ops, | |
11132 | u32 region_max_snapshots, u64 region_size) | |
11133 | { | |
11134 | struct devlink *devlink = port->devlink; | |
11135 | struct devlink_region *region; | |
11136 | int err = 0; | |
11137 | ||
11138 | if (WARN_ON(!ops) || WARN_ON(!ops->destructor)) | |
11139 | return ERR_PTR(-EINVAL); | |
11140 | ||
7715023a | 11141 | devl_lock(devlink); |
544e7c33 AL |
11142 | |
11143 | if (devlink_port_region_get_by_name(port, ops->name)) { | |
11144 | err = -EEXIST; | |
11145 | goto unlock; | |
11146 | } | |
11147 | ||
11148 | region = kzalloc(sizeof(*region), GFP_KERNEL); | |
11149 | if (!region) { | |
11150 | err = -ENOMEM; | |
11151 | goto unlock; | |
11152 | } | |
11153 | ||
11154 | region->devlink = devlink; | |
11155 | region->port = port; | |
11156 | region->max_snapshots = region_max_snapshots; | |
11157 | region->port_ops = ops; | |
11158 | region->size = region_size; | |
11159 | INIT_LIST_HEAD(®ion->snapshot_list); | |
11160 | list_add_tail(®ion->list, &port->region_list); | |
11161 | devlink_nl_region_notify(region, NULL, DEVLINK_CMD_REGION_NEW); | |
11162 | ||
7715023a | 11163 | devl_unlock(devlink); |
544e7c33 AL |
11164 | return region; |
11165 | ||
11166 | unlock: | |
7715023a | 11167 | devl_unlock(devlink); |
544e7c33 AL |
11168 | return ERR_PTR(err); |
11169 | } | |
11170 | EXPORT_SYMBOL_GPL(devlink_port_region_create); | |
11171 | ||
b16ebe92 | 11172 | /** |
eb0e9fa2 | 11173 | * devl_region_destroy - destroy address region |
b16ebe92 | 11174 | * |
eb0e9fa2 | 11175 | * @region: devlink region to destroy |
b16ebe92 | 11176 | */ |
eb0e9fa2 | 11177 | void devl_region_destroy(struct devlink_region *region) |
b16ebe92 AV |
11178 | { |
11179 | struct devlink *devlink = region->devlink; | |
d7e52722 | 11180 | struct devlink_snapshot *snapshot, *ts; |
b16ebe92 | 11181 | |
eb0e9fa2 | 11182 | devl_assert_locked(devlink); |
d7e52722 AV |
11183 | |
11184 | /* Free all snapshots of region */ | |
11185 | list_for_each_entry_safe(snapshot, ts, ®ion->snapshot_list, list) | |
92b49822 | 11186 | devlink_region_snapshot_del(region, snapshot); |
d7e52722 | 11187 | |
b16ebe92 | 11188 | list_del(®ion->list); |
866319bb AV |
11189 | |
11190 | devlink_nl_region_notify(region, NULL, DEVLINK_CMD_REGION_DEL); | |
b16ebe92 AV |
11191 | kfree(region); |
11192 | } | |
eb0e9fa2 JP |
11193 | EXPORT_SYMBOL_GPL(devl_region_destroy); |
11194 | ||
11195 | /** | |
11196 | * devlink_region_destroy - destroy address region | |
11197 | * | |
11198 | * @region: devlink region to destroy | |
11199 | * | |
11200 | * Context: Takes and release devlink->lock <mutex>. | |
11201 | */ | |
11202 | void devlink_region_destroy(struct devlink_region *region) | |
11203 | { | |
11204 | struct devlink *devlink = region->devlink; | |
11205 | ||
11206 | devl_lock(devlink); | |
11207 | devl_region_destroy(region); | |
11208 | devl_unlock(devlink); | |
11209 | } | |
b16ebe92 AV |
11210 | EXPORT_SYMBOL_GPL(devlink_region_destroy); |
11211 | ||
ccadfa44 | 11212 | /** |
b0efcae5 | 11213 | * devlink_region_snapshot_id_get - get snapshot ID |
ccadfa44 AV |
11214 | * |
11215 | * This callback should be called when adding a new snapshot, | |
11216 | * Driver should use the same id for multiple snapshots taken | |
11217 | * on multiple regions at the same time/by the same trigger. | |
11218 | * | |
12102436 JK |
11219 | * The caller of this function must use devlink_region_snapshot_id_put |
11220 | * when finished creating regions using this id. | |
11221 | * | |
7ef19d3b JK |
11222 | * Returns zero on success, or a negative error code on failure. |
11223 | * | |
ccadfa44 | 11224 | * @devlink: devlink |
7ef19d3b | 11225 | * @id: storage to return id |
ccadfa44 | 11226 | */ |
7ef19d3b | 11227 | int devlink_region_snapshot_id_get(struct devlink *devlink, u32 *id) |
ccadfa44 | 11228 | { |
7ef19d3b | 11229 | int err; |
ccadfa44 | 11230 | |
7715023a | 11231 | devl_lock(devlink); |
7ef19d3b | 11232 | err = __devlink_region_snapshot_id_get(devlink, id); |
7715023a | 11233 | devl_unlock(devlink); |
ccadfa44 | 11234 | |
7ef19d3b | 11235 | return err; |
ccadfa44 | 11236 | } |
b0efcae5 | 11237 | EXPORT_SYMBOL_GPL(devlink_region_snapshot_id_get); |
ccadfa44 | 11238 | |
12102436 JK |
11239 | /** |
11240 | * devlink_region_snapshot_id_put - put snapshot ID reference | |
11241 | * | |
11242 | * This should be called by a driver after finishing creating snapshots | |
11243 | * with an id. Doing so ensures that the ID can later be released in the | |
11244 | * event that all snapshots using it have been destroyed. | |
11245 | * | |
11246 | * @devlink: devlink | |
11247 | * @id: id to release reference on | |
11248 | */ | |
11249 | void devlink_region_snapshot_id_put(struct devlink *devlink, u32 id) | |
11250 | { | |
7715023a | 11251 | devl_lock(devlink); |
12102436 | 11252 | __devlink_snapshot_id_decrement(devlink, id); |
7715023a | 11253 | devl_unlock(devlink); |
12102436 JK |
11254 | } |
11255 | EXPORT_SYMBOL_GPL(devlink_region_snapshot_id_put); | |
11256 | ||
d7e52722 AV |
11257 | /** |
11258 | * devlink_region_snapshot_create - create a new snapshot | |
11259 | * This will add a new snapshot of a region. The snapshot | |
11260 | * will be stored on the region struct and can be accessed | |
6d82f67e | 11261 | * from devlink. This is useful for future analyses of snapshots. |
d7e52722 AV |
11262 | * Multiple snapshots can be created on a region. |
11263 | * The @snapshot_id should be obtained using the getter function. | |
11264 | * | |
eeaadd82 | 11265 | * @region: devlink region of the snapshot |
d7e52722 AV |
11266 | * @data: snapshot data |
11267 | * @snapshot_id: snapshot id to be created | |
d7e52722 | 11268 | */ |
3a5e5234 | 11269 | int devlink_region_snapshot_create(struct devlink_region *region, |
a0a09f6b | 11270 | u8 *data, u32 snapshot_id) |
d7e52722 AV |
11271 | { |
11272 | struct devlink *devlink = region->devlink; | |
d7e52722 AV |
11273 | int err; |
11274 | ||
7715023a | 11275 | devl_lock(devlink); |
cf80faee | 11276 | err = __devlink_region_snapshot_create(region, data, snapshot_id); |
7715023a | 11277 | devl_unlock(devlink); |
d7e52722 | 11278 | |
d7e52722 AV |
11279 | return err; |
11280 | } | |
11281 | EXPORT_SYMBOL_GPL(devlink_region_snapshot_create); | |
11282 | ||
0f420b6c IS |
11283 | #define DEVLINK_TRAP(_id, _type) \ |
11284 | { \ | |
11285 | .type = DEVLINK_TRAP_TYPE_##_type, \ | |
11286 | .id = DEVLINK_TRAP_GENERIC_ID_##_id, \ | |
11287 | .name = DEVLINK_TRAP_GENERIC_NAME_##_id, \ | |
11288 | } | |
11289 | ||
11290 | static const struct devlink_trap devlink_trap_generic[] = { | |
391203ab IS |
11291 | DEVLINK_TRAP(SMAC_MC, DROP), |
11292 | DEVLINK_TRAP(VLAN_TAG_MISMATCH, DROP), | |
11293 | DEVLINK_TRAP(INGRESS_VLAN_FILTER, DROP), | |
11294 | DEVLINK_TRAP(INGRESS_STP_FILTER, DROP), | |
11295 | DEVLINK_TRAP(EMPTY_TX_LIST, DROP), | |
11296 | DEVLINK_TRAP(PORT_LOOPBACK_FILTER, DROP), | |
11297 | DEVLINK_TRAP(BLACKHOLE_ROUTE, DROP), | |
11298 | DEVLINK_TRAP(TTL_ERROR, EXCEPTION), | |
11299 | DEVLINK_TRAP(TAIL_DROP, DROP), | |
6896cc4d AC |
11300 | DEVLINK_TRAP(NON_IP_PACKET, DROP), |
11301 | DEVLINK_TRAP(UC_DIP_MC_DMAC, DROP), | |
11302 | DEVLINK_TRAP(DIP_LB, DROP), | |
11303 | DEVLINK_TRAP(SIP_MC, DROP), | |
11304 | DEVLINK_TRAP(SIP_LB, DROP), | |
11305 | DEVLINK_TRAP(CORRUPTED_IP_HDR, DROP), | |
11306 | DEVLINK_TRAP(IPV4_SIP_BC, DROP), | |
11307 | DEVLINK_TRAP(IPV6_MC_DIP_RESERVED_SCOPE, DROP), | |
11308 | DEVLINK_TRAP(IPV6_MC_DIP_INTERFACE_LOCAL_SCOPE, DROP), | |
3b063ae5 AC |
11309 | DEVLINK_TRAP(MTU_ERROR, EXCEPTION), |
11310 | DEVLINK_TRAP(UNRESOLVED_NEIGH, EXCEPTION), | |
11311 | DEVLINK_TRAP(RPF, EXCEPTION), | |
11312 | DEVLINK_TRAP(REJECT_ROUTE, EXCEPTION), | |
11313 | DEVLINK_TRAP(IPV4_LPM_UNICAST_MISS, EXCEPTION), | |
11314 | DEVLINK_TRAP(IPV6_LPM_UNICAST_MISS, EXCEPTION), | |
95f0ead8 | 11315 | DEVLINK_TRAP(NON_ROUTABLE, DROP), |
13c056ec | 11316 | DEVLINK_TRAP(DECAP_ERROR, EXCEPTION), |
c3cae491 | 11317 | DEVLINK_TRAP(OVERLAY_SMAC_MC, DROP), |
ecd942a0 JP |
11318 | DEVLINK_TRAP(INGRESS_FLOW_ACTION_DROP, DROP), |
11319 | DEVLINK_TRAP(EGRESS_FLOW_ACTION_DROP, DROP), | |
515eac67 IS |
11320 | DEVLINK_TRAP(STP, CONTROL), |
11321 | DEVLINK_TRAP(LACP, CONTROL), | |
11322 | DEVLINK_TRAP(LLDP, CONTROL), | |
11323 | DEVLINK_TRAP(IGMP_QUERY, CONTROL), | |
11324 | DEVLINK_TRAP(IGMP_V1_REPORT, CONTROL), | |
11325 | DEVLINK_TRAP(IGMP_V2_REPORT, CONTROL), | |
11326 | DEVLINK_TRAP(IGMP_V3_REPORT, CONTROL), | |
11327 | DEVLINK_TRAP(IGMP_V2_LEAVE, CONTROL), | |
11328 | DEVLINK_TRAP(MLD_QUERY, CONTROL), | |
11329 | DEVLINK_TRAP(MLD_V1_REPORT, CONTROL), | |
11330 | DEVLINK_TRAP(MLD_V2_REPORT, CONTROL), | |
11331 | DEVLINK_TRAP(MLD_V1_DONE, CONTROL), | |
d77cfd16 IS |
11332 | DEVLINK_TRAP(IPV4_DHCP, CONTROL), |
11333 | DEVLINK_TRAP(IPV6_DHCP, CONTROL), | |
11334 | DEVLINK_TRAP(ARP_REQUEST, CONTROL), | |
11335 | DEVLINK_TRAP(ARP_RESPONSE, CONTROL), | |
11336 | DEVLINK_TRAP(ARP_OVERLAY, CONTROL), | |
11337 | DEVLINK_TRAP(IPV6_NEIGH_SOLICIT, CONTROL), | |
11338 | DEVLINK_TRAP(IPV6_NEIGH_ADVERT, CONTROL), | |
11339 | DEVLINK_TRAP(IPV4_BFD, CONTROL), | |
11340 | DEVLINK_TRAP(IPV6_BFD, CONTROL), | |
11341 | DEVLINK_TRAP(IPV4_OSPF, CONTROL), | |
11342 | DEVLINK_TRAP(IPV6_OSPF, CONTROL), | |
11343 | DEVLINK_TRAP(IPV4_BGP, CONTROL), | |
11344 | DEVLINK_TRAP(IPV6_BGP, CONTROL), | |
11345 | DEVLINK_TRAP(IPV4_VRRP, CONTROL), | |
11346 | DEVLINK_TRAP(IPV6_VRRP, CONTROL), | |
11347 | DEVLINK_TRAP(IPV4_PIM, CONTROL), | |
11348 | DEVLINK_TRAP(IPV6_PIM, CONTROL), | |
11349 | DEVLINK_TRAP(UC_LB, CONTROL), | |
11350 | DEVLINK_TRAP(LOCAL_ROUTE, CONTROL), | |
11351 | DEVLINK_TRAP(EXTERNAL_ROUTE, CONTROL), | |
11352 | DEVLINK_TRAP(IPV6_UC_DIP_LINK_LOCAL_SCOPE, CONTROL), | |
11353 | DEVLINK_TRAP(IPV6_DIP_ALL_NODES, CONTROL), | |
11354 | DEVLINK_TRAP(IPV6_DIP_ALL_ROUTERS, CONTROL), | |
11355 | DEVLINK_TRAP(IPV6_ROUTER_SOLICIT, CONTROL), | |
11356 | DEVLINK_TRAP(IPV6_ROUTER_ADVERT, CONTROL), | |
11357 | DEVLINK_TRAP(IPV6_REDIRECT, CONTROL), | |
11358 | DEVLINK_TRAP(IPV4_ROUTER_ALERT, CONTROL), | |
11359 | DEVLINK_TRAP(IPV6_ROUTER_ALERT, CONTROL), | |
11360 | DEVLINK_TRAP(PTP_EVENT, CONTROL), | |
11361 | DEVLINK_TRAP(PTP_GENERAL, CONTROL), | |
5eb18a2b IS |
11362 | DEVLINK_TRAP(FLOW_ACTION_SAMPLE, CONTROL), |
11363 | DEVLINK_TRAP(FLOW_ACTION_TRAP, CONTROL), | |
08e335f6 | 11364 | DEVLINK_TRAP(EARLY_DROP, DROP), |
10c24eb2 IC |
11365 | DEVLINK_TRAP(VXLAN_PARSING, DROP), |
11366 | DEVLINK_TRAP(LLC_SNAP_PARSING, DROP), | |
11367 | DEVLINK_TRAP(VLAN_PARSING, DROP), | |
11368 | DEVLINK_TRAP(PPPOE_PPP_PARSING, DROP), | |
11369 | DEVLINK_TRAP(MPLS_PARSING, DROP), | |
11370 | DEVLINK_TRAP(ARP_PARSING, DROP), | |
11371 | DEVLINK_TRAP(IP_1_PARSING, DROP), | |
11372 | DEVLINK_TRAP(IP_N_PARSING, DROP), | |
11373 | DEVLINK_TRAP(GRE_PARSING, DROP), | |
11374 | DEVLINK_TRAP(UDP_PARSING, DROP), | |
11375 | DEVLINK_TRAP(TCP_PARSING, DROP), | |
11376 | DEVLINK_TRAP(IPSEC_PARSING, DROP), | |
11377 | DEVLINK_TRAP(SCTP_PARSING, DROP), | |
11378 | DEVLINK_TRAP(DCCP_PARSING, DROP), | |
11379 | DEVLINK_TRAP(GTP_PARSING, DROP), | |
11380 | DEVLINK_TRAP(ESP_PARSING, DROP), | |
f0a5013e | 11381 | DEVLINK_TRAP(BLACKHOLE_NEXTHOP, DROP), |
e78ab164 | 11382 | DEVLINK_TRAP(DMAC_FILTER, DROP), |
0f420b6c IS |
11383 | }; |
11384 | ||
11385 | #define DEVLINK_TRAP_GROUP(_id) \ | |
11386 | { \ | |
11387 | .id = DEVLINK_TRAP_GROUP_GENERIC_ID_##_id, \ | |
11388 | .name = DEVLINK_TRAP_GROUP_GENERIC_NAME_##_id, \ | |
11389 | } | |
11390 | ||
11391 | static const struct devlink_trap_group devlink_trap_group_generic[] = { | |
391203ab IS |
11392 | DEVLINK_TRAP_GROUP(L2_DROPS), |
11393 | DEVLINK_TRAP_GROUP(L3_DROPS), | |
678eb199 | 11394 | DEVLINK_TRAP_GROUP(L3_EXCEPTIONS), |
391203ab | 11395 | DEVLINK_TRAP_GROUP(BUFFER_DROPS), |
13c056ec | 11396 | DEVLINK_TRAP_GROUP(TUNNEL_DROPS), |
ecd942a0 | 11397 | DEVLINK_TRAP_GROUP(ACL_DROPS), |
515eac67 IS |
11398 | DEVLINK_TRAP_GROUP(STP), |
11399 | DEVLINK_TRAP_GROUP(LACP), | |
11400 | DEVLINK_TRAP_GROUP(LLDP), | |
11401 | DEVLINK_TRAP_GROUP(MC_SNOOPING), | |
d77cfd16 IS |
11402 | DEVLINK_TRAP_GROUP(DHCP), |
11403 | DEVLINK_TRAP_GROUP(NEIGH_DISCOVERY), | |
11404 | DEVLINK_TRAP_GROUP(BFD), | |
11405 | DEVLINK_TRAP_GROUP(OSPF), | |
11406 | DEVLINK_TRAP_GROUP(BGP), | |
11407 | DEVLINK_TRAP_GROUP(VRRP), | |
11408 | DEVLINK_TRAP_GROUP(PIM), | |
11409 | DEVLINK_TRAP_GROUP(UC_LB), | |
11410 | DEVLINK_TRAP_GROUP(LOCAL_DELIVERY), | |
ec4f5b36 | 11411 | DEVLINK_TRAP_GROUP(EXTERNAL_DELIVERY), |
d77cfd16 IS |
11412 | DEVLINK_TRAP_GROUP(IPV6), |
11413 | DEVLINK_TRAP_GROUP(PTP_EVENT), | |
11414 | DEVLINK_TRAP_GROUP(PTP_GENERAL), | |
5eb18a2b IS |
11415 | DEVLINK_TRAP_GROUP(ACL_SAMPLE), |
11416 | DEVLINK_TRAP_GROUP(ACL_TRAP), | |
10c24eb2 | 11417 | DEVLINK_TRAP_GROUP(PARSER_ERROR_DROPS), |
0f420b6c IS |
11418 | }; |
11419 | ||
11420 | static int devlink_trap_generic_verify(const struct devlink_trap *trap) | |
11421 | { | |
11422 | if (trap->id > DEVLINK_TRAP_GENERIC_ID_MAX) | |
11423 | return -EINVAL; | |
11424 | ||
11425 | if (strcmp(trap->name, devlink_trap_generic[trap->id].name)) | |
11426 | return -EINVAL; | |
11427 | ||
11428 | if (trap->type != devlink_trap_generic[trap->id].type) | |
11429 | return -EINVAL; | |
11430 | ||
11431 | return 0; | |
11432 | } | |
11433 | ||
11434 | static int devlink_trap_driver_verify(const struct devlink_trap *trap) | |
11435 | { | |
11436 | int i; | |
11437 | ||
11438 | if (trap->id <= DEVLINK_TRAP_GENERIC_ID_MAX) | |
11439 | return -EINVAL; | |
11440 | ||
11441 | for (i = 0; i < ARRAY_SIZE(devlink_trap_generic); i++) { | |
11442 | if (!strcmp(trap->name, devlink_trap_generic[i].name)) | |
11443 | return -EEXIST; | |
11444 | } | |
11445 | ||
11446 | return 0; | |
11447 | } | |
11448 | ||
11449 | static int devlink_trap_verify(const struct devlink_trap *trap) | |
11450 | { | |
107f1678 | 11451 | if (!trap || !trap->name) |
0f420b6c IS |
11452 | return -EINVAL; |
11453 | ||
11454 | if (trap->generic) | |
11455 | return devlink_trap_generic_verify(trap); | |
11456 | else | |
11457 | return devlink_trap_driver_verify(trap); | |
11458 | } | |
11459 | ||
11460 | static int | |
11461 | devlink_trap_group_generic_verify(const struct devlink_trap_group *group) | |
11462 | { | |
11463 | if (group->id > DEVLINK_TRAP_GROUP_GENERIC_ID_MAX) | |
11464 | return -EINVAL; | |
11465 | ||
11466 | if (strcmp(group->name, devlink_trap_group_generic[group->id].name)) | |
11467 | return -EINVAL; | |
11468 | ||
11469 | return 0; | |
11470 | } | |
11471 | ||
11472 | static int | |
11473 | devlink_trap_group_driver_verify(const struct devlink_trap_group *group) | |
11474 | { | |
11475 | int i; | |
11476 | ||
11477 | if (group->id <= DEVLINK_TRAP_GROUP_GENERIC_ID_MAX) | |
11478 | return -EINVAL; | |
11479 | ||
11480 | for (i = 0; i < ARRAY_SIZE(devlink_trap_group_generic); i++) { | |
11481 | if (!strcmp(group->name, devlink_trap_group_generic[i].name)) | |
11482 | return -EEXIST; | |
11483 | } | |
11484 | ||
11485 | return 0; | |
11486 | } | |
11487 | ||
11488 | static int devlink_trap_group_verify(const struct devlink_trap_group *group) | |
11489 | { | |
11490 | if (group->generic) | |
11491 | return devlink_trap_group_generic_verify(group); | |
11492 | else | |
11493 | return devlink_trap_group_driver_verify(group); | |
11494 | } | |
11495 | ||
11496 | static void | |
11497 | devlink_trap_group_notify(struct devlink *devlink, | |
11498 | const struct devlink_trap_group_item *group_item, | |
11499 | enum devlink_command cmd) | |
11500 | { | |
11501 | struct sk_buff *msg; | |
11502 | int err; | |
11503 | ||
11504 | WARN_ON_ONCE(cmd != DEVLINK_CMD_TRAP_GROUP_NEW && | |
11505 | cmd != DEVLINK_CMD_TRAP_GROUP_DEL); | |
fb9d19c2 LR |
11506 | if (!xa_get_mark(&devlinks, devlink->index, DEVLINK_REGISTERED)) |
11507 | return; | |
0f420b6c IS |
11508 | |
11509 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
11510 | if (!msg) | |
11511 | return; | |
11512 | ||
11513 | err = devlink_nl_trap_group_fill(msg, devlink, group_item, cmd, 0, 0, | |
11514 | 0); | |
11515 | if (err) { | |
11516 | nlmsg_free(msg); | |
11517 | return; | |
11518 | } | |
11519 | ||
11520 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), | |
11521 | msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
11522 | } | |
11523 | ||
0f420b6c IS |
11524 | static int |
11525 | devlink_trap_item_group_link(struct devlink *devlink, | |
11526 | struct devlink_trap_item *trap_item) | |
11527 | { | |
107f1678 | 11528 | u16 group_id = trap_item->trap->init_group_id; |
0f420b6c IS |
11529 | struct devlink_trap_group_item *group_item; |
11530 | ||
107f1678 | 11531 | group_item = devlink_trap_group_item_lookup_by_id(devlink, group_id); |
a09b37fc IS |
11532 | if (WARN_ON_ONCE(!group_item)) |
11533 | return -EINVAL; | |
0f420b6c IS |
11534 | |
11535 | trap_item->group_item = group_item; | |
11536 | ||
11537 | return 0; | |
11538 | } | |
11539 | ||
0f420b6c IS |
11540 | static void devlink_trap_notify(struct devlink *devlink, |
11541 | const struct devlink_trap_item *trap_item, | |
11542 | enum devlink_command cmd) | |
11543 | { | |
11544 | struct sk_buff *msg; | |
11545 | int err; | |
11546 | ||
11547 | WARN_ON_ONCE(cmd != DEVLINK_CMD_TRAP_NEW && | |
11548 | cmd != DEVLINK_CMD_TRAP_DEL); | |
cf530217 LR |
11549 | if (!xa_get_mark(&devlinks, devlink->index, DEVLINK_REGISTERED)) |
11550 | return; | |
0f420b6c IS |
11551 | |
11552 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
11553 | if (!msg) | |
11554 | return; | |
11555 | ||
11556 | err = devlink_nl_trap_fill(msg, devlink, trap_item, cmd, 0, 0, 0); | |
11557 | if (err) { | |
11558 | nlmsg_free(msg); | |
11559 | return; | |
11560 | } | |
11561 | ||
11562 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), | |
11563 | msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
11564 | } | |
11565 | ||
11566 | static int | |
11567 | devlink_trap_register(struct devlink *devlink, | |
11568 | const struct devlink_trap *trap, void *priv) | |
11569 | { | |
11570 | struct devlink_trap_item *trap_item; | |
11571 | int err; | |
11572 | ||
11573 | if (devlink_trap_item_lookup(devlink, trap->name)) | |
11574 | return -EEXIST; | |
11575 | ||
11576 | trap_item = kzalloc(sizeof(*trap_item), GFP_KERNEL); | |
11577 | if (!trap_item) | |
11578 | return -ENOMEM; | |
11579 | ||
11580 | trap_item->stats = netdev_alloc_pcpu_stats(struct devlink_stats); | |
11581 | if (!trap_item->stats) { | |
11582 | err = -ENOMEM; | |
11583 | goto err_stats_alloc; | |
11584 | } | |
11585 | ||
11586 | trap_item->trap = trap; | |
11587 | trap_item->action = trap->init_action; | |
11588 | trap_item->priv = priv; | |
11589 | ||
11590 | err = devlink_trap_item_group_link(devlink, trap_item); | |
11591 | if (err) | |
11592 | goto err_group_link; | |
11593 | ||
11594 | err = devlink->ops->trap_init(devlink, trap, trap_item); | |
11595 | if (err) | |
11596 | goto err_trap_init; | |
11597 | ||
11598 | list_add_tail(&trap_item->list, &devlink->trap_list); | |
11599 | devlink_trap_notify(devlink, trap_item, DEVLINK_CMD_TRAP_NEW); | |
11600 | ||
11601 | return 0; | |
11602 | ||
11603 | err_trap_init: | |
0f420b6c IS |
11604 | err_group_link: |
11605 | free_percpu(trap_item->stats); | |
11606 | err_stats_alloc: | |
11607 | kfree(trap_item); | |
11608 | return err; | |
11609 | } | |
11610 | ||
11611 | static void devlink_trap_unregister(struct devlink *devlink, | |
11612 | const struct devlink_trap *trap) | |
11613 | { | |
11614 | struct devlink_trap_item *trap_item; | |
11615 | ||
11616 | trap_item = devlink_trap_item_lookup(devlink, trap->name); | |
11617 | if (WARN_ON_ONCE(!trap_item)) | |
11618 | return; | |
11619 | ||
11620 | devlink_trap_notify(devlink, trap_item, DEVLINK_CMD_TRAP_DEL); | |
11621 | list_del(&trap_item->list); | |
11622 | if (devlink->ops->trap_fini) | |
11623 | devlink->ops->trap_fini(devlink, trap, trap_item); | |
0f420b6c IS |
11624 | free_percpu(trap_item->stats); |
11625 | kfree(trap_item); | |
11626 | } | |
11627 | ||
11628 | static void devlink_trap_disable(struct devlink *devlink, | |
11629 | const struct devlink_trap *trap) | |
11630 | { | |
11631 | struct devlink_trap_item *trap_item; | |
11632 | ||
11633 | trap_item = devlink_trap_item_lookup(devlink, trap->name); | |
11634 | if (WARN_ON_ONCE(!trap_item)) | |
11635 | return; | |
11636 | ||
c88e11e0 IS |
11637 | devlink->ops->trap_action_set(devlink, trap, DEVLINK_TRAP_ACTION_DROP, |
11638 | NULL); | |
0f420b6c IS |
11639 | trap_item->action = DEVLINK_TRAP_ACTION_DROP; |
11640 | } | |
11641 | ||
11642 | /** | |
852e85a7 | 11643 | * devl_traps_register - Register packet traps with devlink. |
0f420b6c IS |
11644 | * @devlink: devlink. |
11645 | * @traps: Packet traps. | |
11646 | * @traps_count: Count of provided packet traps. | |
11647 | * @priv: Driver private information. | |
11648 | * | |
11649 | * Return: Non-zero value on failure. | |
11650 | */ | |
852e85a7 JP |
11651 | int devl_traps_register(struct devlink *devlink, |
11652 | const struct devlink_trap *traps, | |
11653 | size_t traps_count, void *priv) | |
0f420b6c IS |
11654 | { |
11655 | int i, err; | |
11656 | ||
11657 | if (!devlink->ops->trap_init || !devlink->ops->trap_action_set) | |
11658 | return -EINVAL; | |
11659 | ||
852e85a7 | 11660 | devl_assert_locked(devlink); |
0f420b6c IS |
11661 | for (i = 0; i < traps_count; i++) { |
11662 | const struct devlink_trap *trap = &traps[i]; | |
11663 | ||
11664 | err = devlink_trap_verify(trap); | |
11665 | if (err) | |
11666 | goto err_trap_verify; | |
11667 | ||
11668 | err = devlink_trap_register(devlink, trap, priv); | |
11669 | if (err) | |
11670 | goto err_trap_register; | |
11671 | } | |
0f420b6c IS |
11672 | |
11673 | return 0; | |
11674 | ||
11675 | err_trap_register: | |
11676 | err_trap_verify: | |
11677 | for (i--; i >= 0; i--) | |
11678 | devlink_trap_unregister(devlink, &traps[i]); | |
852e85a7 JP |
11679 | return err; |
11680 | } | |
11681 | EXPORT_SYMBOL_GPL(devl_traps_register); | |
11682 | ||
11683 | /** | |
11684 | * devlink_traps_register - Register packet traps with devlink. | |
11685 | * @devlink: devlink. | |
11686 | * @traps: Packet traps. | |
11687 | * @traps_count: Count of provided packet traps. | |
11688 | * @priv: Driver private information. | |
11689 | * | |
11690 | * Context: Takes and release devlink->lock <mutex>. | |
11691 | * | |
11692 | * Return: Non-zero value on failure. | |
11693 | */ | |
11694 | int devlink_traps_register(struct devlink *devlink, | |
11695 | const struct devlink_trap *traps, | |
11696 | size_t traps_count, void *priv) | |
11697 | { | |
11698 | int err; | |
11699 | ||
11700 | devl_lock(devlink); | |
11701 | err = devl_traps_register(devlink, traps, traps_count, priv); | |
7715023a | 11702 | devl_unlock(devlink); |
0f420b6c IS |
11703 | return err; |
11704 | } | |
11705 | EXPORT_SYMBOL_GPL(devlink_traps_register); | |
11706 | ||
11707 | /** | |
852e85a7 | 11708 | * devl_traps_unregister - Unregister packet traps from devlink. |
0f420b6c IS |
11709 | * @devlink: devlink. |
11710 | * @traps: Packet traps. | |
11711 | * @traps_count: Count of provided packet traps. | |
11712 | */ | |
852e85a7 JP |
11713 | void devl_traps_unregister(struct devlink *devlink, |
11714 | const struct devlink_trap *traps, | |
11715 | size_t traps_count) | |
0f420b6c IS |
11716 | { |
11717 | int i; | |
11718 | ||
852e85a7 | 11719 | devl_assert_locked(devlink); |
0f420b6c IS |
11720 | /* Make sure we do not have any packets in-flight while unregistering |
11721 | * traps by disabling all of them and waiting for a grace period. | |
11722 | */ | |
11723 | for (i = traps_count - 1; i >= 0; i--) | |
11724 | devlink_trap_disable(devlink, &traps[i]); | |
11725 | synchronize_rcu(); | |
11726 | for (i = traps_count - 1; i >= 0; i--) | |
11727 | devlink_trap_unregister(devlink, &traps[i]); | |
852e85a7 JP |
11728 | } |
11729 | EXPORT_SYMBOL_GPL(devl_traps_unregister); | |
11730 | ||
11731 | /** | |
11732 | * devlink_traps_unregister - Unregister packet traps from devlink. | |
11733 | * @devlink: devlink. | |
11734 | * @traps: Packet traps. | |
11735 | * @traps_count: Count of provided packet traps. | |
11736 | * | |
11737 | * Context: Takes and release devlink->lock <mutex>. | |
11738 | */ | |
11739 | void devlink_traps_unregister(struct devlink *devlink, | |
11740 | const struct devlink_trap *traps, | |
11741 | size_t traps_count) | |
11742 | { | |
11743 | devl_lock(devlink); | |
11744 | devl_traps_unregister(devlink, traps, traps_count); | |
7715023a | 11745 | devl_unlock(devlink); |
0f420b6c IS |
11746 | } |
11747 | EXPORT_SYMBOL_GPL(devlink_traps_unregister); | |
11748 | ||
11749 | static void | |
11750 | devlink_trap_stats_update(struct devlink_stats __percpu *trap_stats, | |
11751 | size_t skb_len) | |
11752 | { | |
11753 | struct devlink_stats *stats; | |
11754 | ||
11755 | stats = this_cpu_ptr(trap_stats); | |
11756 | u64_stats_update_begin(&stats->syncp); | |
958751e0 ED |
11757 | u64_stats_add(&stats->rx_bytes, skb_len); |
11758 | u64_stats_inc(&stats->rx_packets); | |
0f420b6c IS |
11759 | u64_stats_update_end(&stats->syncp); |
11760 | } | |
11761 | ||
5b88823b IS |
11762 | static void |
11763 | devlink_trap_report_metadata_set(struct devlink_trap_metadata *metadata, | |
11764 | const struct devlink_trap_item *trap_item, | |
11765 | struct devlink_port *in_devlink_port, | |
11766 | const struct flow_action_cookie *fa_cookie) | |
11767 | { | |
11768 | metadata->trap_name = trap_item->trap->name; | |
11769 | metadata->trap_group_name = trap_item->group_item->group->name; | |
11770 | metadata->fa_cookie = fa_cookie; | |
93e15596 | 11771 | metadata->trap_type = trap_item->trap->type; |
5b88823b IS |
11772 | |
11773 | spin_lock(&in_devlink_port->type_lock); | |
11774 | if (in_devlink_port->type == DEVLINK_PORT_TYPE_ETH) | |
11775 | metadata->input_dev = in_devlink_port->type_dev; | |
11776 | spin_unlock(&in_devlink_port->type_lock); | |
11777 | } | |
11778 | ||
0f420b6c IS |
11779 | /** |
11780 | * devlink_trap_report - Report trapped packet to drop monitor. | |
11781 | * @devlink: devlink. | |
11782 | * @skb: Trapped packet. | |
11783 | * @trap_ctx: Trap context. | |
11784 | * @in_devlink_port: Input devlink port. | |
5a2e106c | 11785 | * @fa_cookie: Flow action cookie. Could be NULL. |
0f420b6c IS |
11786 | */ |
11787 | void devlink_trap_report(struct devlink *devlink, struct sk_buff *skb, | |
5a2e106c JP |
11788 | void *trap_ctx, struct devlink_port *in_devlink_port, |
11789 | const struct flow_action_cookie *fa_cookie) | |
11790 | ||
0f420b6c IS |
11791 | { |
11792 | struct devlink_trap_item *trap_item = trap_ctx; | |
0f420b6c IS |
11793 | |
11794 | devlink_trap_stats_update(trap_item->stats, skb->len); | |
11795 | devlink_trap_stats_update(trap_item->group_item->stats, skb->len); | |
11796 | ||
5b88823b IS |
11797 | if (trace_devlink_trap_report_enabled()) { |
11798 | struct devlink_trap_metadata metadata = {}; | |
11799 | ||
11800 | devlink_trap_report_metadata_set(&metadata, trap_item, | |
11801 | in_devlink_port, fa_cookie); | |
11802 | trace_devlink_trap_report(devlink, skb, &metadata); | |
11803 | } | |
0f420b6c IS |
11804 | } |
11805 | EXPORT_SYMBOL_GPL(devlink_trap_report); | |
11806 | ||
11807 | /** | |
11808 | * devlink_trap_ctx_priv - Trap context to driver private information. | |
11809 | * @trap_ctx: Trap context. | |
11810 | * | |
11811 | * Return: Driver private information passed during registration. | |
11812 | */ | |
11813 | void *devlink_trap_ctx_priv(void *trap_ctx) | |
11814 | { | |
11815 | struct devlink_trap_item *trap_item = trap_ctx; | |
11816 | ||
11817 | return trap_item->priv; | |
11818 | } | |
11819 | EXPORT_SYMBOL_GPL(devlink_trap_ctx_priv); | |
11820 | ||
f9f54392 IS |
11821 | static int |
11822 | devlink_trap_group_item_policer_link(struct devlink *devlink, | |
11823 | struct devlink_trap_group_item *group_item) | |
11824 | { | |
11825 | u32 policer_id = group_item->group->init_policer_id; | |
11826 | struct devlink_trap_policer_item *policer_item; | |
11827 | ||
11828 | if (policer_id == 0) | |
11829 | return 0; | |
11830 | ||
11831 | policer_item = devlink_trap_policer_item_lookup(devlink, policer_id); | |
11832 | if (WARN_ON_ONCE(!policer_item)) | |
11833 | return -EINVAL; | |
11834 | ||
11835 | group_item->policer_item = policer_item; | |
11836 | ||
11837 | return 0; | |
11838 | } | |
11839 | ||
95ad9555 IS |
11840 | static int |
11841 | devlink_trap_group_register(struct devlink *devlink, | |
11842 | const struct devlink_trap_group *group) | |
11843 | { | |
11844 | struct devlink_trap_group_item *group_item; | |
11845 | int err; | |
11846 | ||
11847 | if (devlink_trap_group_item_lookup(devlink, group->name)) | |
11848 | return -EEXIST; | |
11849 | ||
11850 | group_item = kzalloc(sizeof(*group_item), GFP_KERNEL); | |
11851 | if (!group_item) | |
11852 | return -ENOMEM; | |
11853 | ||
11854 | group_item->stats = netdev_alloc_pcpu_stats(struct devlink_stats); | |
11855 | if (!group_item->stats) { | |
11856 | err = -ENOMEM; | |
11857 | goto err_stats_alloc; | |
11858 | } | |
11859 | ||
11860 | group_item->group = group; | |
95ad9555 | 11861 | |
f9f54392 IS |
11862 | err = devlink_trap_group_item_policer_link(devlink, group_item); |
11863 | if (err) | |
11864 | goto err_policer_link; | |
11865 | ||
95ad9555 IS |
11866 | if (devlink->ops->trap_group_init) { |
11867 | err = devlink->ops->trap_group_init(devlink, group); | |
11868 | if (err) | |
11869 | goto err_group_init; | |
11870 | } | |
11871 | ||
11872 | list_add_tail(&group_item->list, &devlink->trap_group_list); | |
fb9d19c2 LR |
11873 | devlink_trap_group_notify(devlink, group_item, |
11874 | DEVLINK_CMD_TRAP_GROUP_NEW); | |
11875 | ||
95ad9555 IS |
11876 | return 0; |
11877 | ||
11878 | err_group_init: | |
f9f54392 | 11879 | err_policer_link: |
95ad9555 IS |
11880 | free_percpu(group_item->stats); |
11881 | err_stats_alloc: | |
11882 | kfree(group_item); | |
11883 | return err; | |
11884 | } | |
11885 | ||
11886 | static void | |
11887 | devlink_trap_group_unregister(struct devlink *devlink, | |
11888 | const struct devlink_trap_group *group) | |
11889 | { | |
11890 | struct devlink_trap_group_item *group_item; | |
11891 | ||
11892 | group_item = devlink_trap_group_item_lookup(devlink, group->name); | |
11893 | if (WARN_ON_ONCE(!group_item)) | |
11894 | return; | |
11895 | ||
fb9d19c2 LR |
11896 | devlink_trap_group_notify(devlink, group_item, |
11897 | DEVLINK_CMD_TRAP_GROUP_DEL); | |
95ad9555 IS |
11898 | list_del(&group_item->list); |
11899 | free_percpu(group_item->stats); | |
11900 | kfree(group_item); | |
11901 | } | |
11902 | ||
11903 | /** | |
852e85a7 | 11904 | * devl_trap_groups_register - Register packet trap groups with devlink. |
95ad9555 IS |
11905 | * @devlink: devlink. |
11906 | * @groups: Packet trap groups. | |
11907 | * @groups_count: Count of provided packet trap groups. | |
11908 | * | |
11909 | * Return: Non-zero value on failure. | |
11910 | */ | |
852e85a7 JP |
11911 | int devl_trap_groups_register(struct devlink *devlink, |
11912 | const struct devlink_trap_group *groups, | |
11913 | size_t groups_count) | |
95ad9555 IS |
11914 | { |
11915 | int i, err; | |
11916 | ||
852e85a7 | 11917 | devl_assert_locked(devlink); |
95ad9555 IS |
11918 | for (i = 0; i < groups_count; i++) { |
11919 | const struct devlink_trap_group *group = &groups[i]; | |
11920 | ||
11921 | err = devlink_trap_group_verify(group); | |
11922 | if (err) | |
11923 | goto err_trap_group_verify; | |
11924 | ||
11925 | err = devlink_trap_group_register(devlink, group); | |
11926 | if (err) | |
11927 | goto err_trap_group_register; | |
11928 | } | |
95ad9555 IS |
11929 | |
11930 | return 0; | |
11931 | ||
11932 | err_trap_group_register: | |
11933 | err_trap_group_verify: | |
11934 | for (i--; i >= 0; i--) | |
11935 | devlink_trap_group_unregister(devlink, &groups[i]); | |
852e85a7 JP |
11936 | return err; |
11937 | } | |
11938 | EXPORT_SYMBOL_GPL(devl_trap_groups_register); | |
11939 | ||
11940 | /** | |
11941 | * devlink_trap_groups_register - Register packet trap groups with devlink. | |
11942 | * @devlink: devlink. | |
11943 | * @groups: Packet trap groups. | |
11944 | * @groups_count: Count of provided packet trap groups. | |
11945 | * | |
11946 | * Context: Takes and release devlink->lock <mutex>. | |
11947 | * | |
11948 | * Return: Non-zero value on failure. | |
11949 | */ | |
11950 | int devlink_trap_groups_register(struct devlink *devlink, | |
11951 | const struct devlink_trap_group *groups, | |
11952 | size_t groups_count) | |
11953 | { | |
11954 | int err; | |
11955 | ||
11956 | devl_lock(devlink); | |
11957 | err = devl_trap_groups_register(devlink, groups, groups_count); | |
7715023a | 11958 | devl_unlock(devlink); |
95ad9555 IS |
11959 | return err; |
11960 | } | |
11961 | EXPORT_SYMBOL_GPL(devlink_trap_groups_register); | |
11962 | ||
852e85a7 JP |
11963 | /** |
11964 | * devl_trap_groups_unregister - Unregister packet trap groups from devlink. | |
11965 | * @devlink: devlink. | |
11966 | * @groups: Packet trap groups. | |
11967 | * @groups_count: Count of provided packet trap groups. | |
11968 | */ | |
11969 | void devl_trap_groups_unregister(struct devlink *devlink, | |
11970 | const struct devlink_trap_group *groups, | |
11971 | size_t groups_count) | |
11972 | { | |
11973 | int i; | |
11974 | ||
11975 | devl_assert_locked(devlink); | |
11976 | for (i = groups_count - 1; i >= 0; i--) | |
11977 | devlink_trap_group_unregister(devlink, &groups[i]); | |
11978 | } | |
11979 | EXPORT_SYMBOL_GPL(devl_trap_groups_unregister); | |
11980 | ||
95ad9555 IS |
11981 | /** |
11982 | * devlink_trap_groups_unregister - Unregister packet trap groups from devlink. | |
11983 | * @devlink: devlink. | |
11984 | * @groups: Packet trap groups. | |
11985 | * @groups_count: Count of provided packet trap groups. | |
852e85a7 JP |
11986 | * |
11987 | * Context: Takes and release devlink->lock <mutex>. | |
95ad9555 IS |
11988 | */ |
11989 | void devlink_trap_groups_unregister(struct devlink *devlink, | |
11990 | const struct devlink_trap_group *groups, | |
11991 | size_t groups_count) | |
11992 | { | |
7715023a | 11993 | devl_lock(devlink); |
852e85a7 | 11994 | devl_trap_groups_unregister(devlink, groups, groups_count); |
7715023a | 11995 | devl_unlock(devlink); |
95ad9555 IS |
11996 | } |
11997 | EXPORT_SYMBOL_GPL(devlink_trap_groups_unregister); | |
11998 | ||
1e8c6619 IS |
11999 | static void |
12000 | devlink_trap_policer_notify(struct devlink *devlink, | |
12001 | const struct devlink_trap_policer_item *policer_item, | |
12002 | enum devlink_command cmd) | |
12003 | { | |
12004 | struct sk_buff *msg; | |
12005 | int err; | |
12006 | ||
12007 | WARN_ON_ONCE(cmd != DEVLINK_CMD_TRAP_POLICER_NEW && | |
12008 | cmd != DEVLINK_CMD_TRAP_POLICER_DEL); | |
c5e0321e LR |
12009 | if (!xa_get_mark(&devlinks, devlink->index, DEVLINK_REGISTERED)) |
12010 | return; | |
1e8c6619 IS |
12011 | |
12012 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
12013 | if (!msg) | |
12014 | return; | |
12015 | ||
12016 | err = devlink_nl_trap_policer_fill(msg, devlink, policer_item, cmd, 0, | |
12017 | 0, 0); | |
12018 | if (err) { | |
12019 | nlmsg_free(msg); | |
12020 | return; | |
12021 | } | |
12022 | ||
12023 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), | |
12024 | msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
12025 | } | |
12026 | ||
12027 | static int | |
12028 | devlink_trap_policer_register(struct devlink *devlink, | |
12029 | const struct devlink_trap_policer *policer) | |
12030 | { | |
12031 | struct devlink_trap_policer_item *policer_item; | |
12032 | int err; | |
12033 | ||
12034 | if (devlink_trap_policer_item_lookup(devlink, policer->id)) | |
12035 | return -EEXIST; | |
12036 | ||
12037 | policer_item = kzalloc(sizeof(*policer_item), GFP_KERNEL); | |
12038 | if (!policer_item) | |
12039 | return -ENOMEM; | |
12040 | ||
12041 | policer_item->policer = policer; | |
12042 | policer_item->rate = policer->init_rate; | |
12043 | policer_item->burst = policer->init_burst; | |
12044 | ||
12045 | if (devlink->ops->trap_policer_init) { | |
12046 | err = devlink->ops->trap_policer_init(devlink, policer); | |
12047 | if (err) | |
12048 | goto err_policer_init; | |
12049 | } | |
12050 | ||
12051 | list_add_tail(&policer_item->list, &devlink->trap_policer_list); | |
c5e0321e LR |
12052 | devlink_trap_policer_notify(devlink, policer_item, |
12053 | DEVLINK_CMD_TRAP_POLICER_NEW); | |
12054 | ||
1e8c6619 IS |
12055 | return 0; |
12056 | ||
12057 | err_policer_init: | |
12058 | kfree(policer_item); | |
12059 | return err; | |
12060 | } | |
12061 | ||
12062 | static void | |
12063 | devlink_trap_policer_unregister(struct devlink *devlink, | |
12064 | const struct devlink_trap_policer *policer) | |
12065 | { | |
12066 | struct devlink_trap_policer_item *policer_item; | |
12067 | ||
12068 | policer_item = devlink_trap_policer_item_lookup(devlink, policer->id); | |
12069 | if (WARN_ON_ONCE(!policer_item)) | |
12070 | return; | |
12071 | ||
c5e0321e LR |
12072 | devlink_trap_policer_notify(devlink, policer_item, |
12073 | DEVLINK_CMD_TRAP_POLICER_DEL); | |
1e8c6619 IS |
12074 | list_del(&policer_item->list); |
12075 | if (devlink->ops->trap_policer_fini) | |
12076 | devlink->ops->trap_policer_fini(devlink, policer); | |
12077 | kfree(policer_item); | |
12078 | } | |
12079 | ||
12080 | /** | |
852e85a7 | 12081 | * devl_trap_policers_register - Register packet trap policers with devlink. |
1e8c6619 IS |
12082 | * @devlink: devlink. |
12083 | * @policers: Packet trap policers. | |
12084 | * @policers_count: Count of provided packet trap policers. | |
12085 | * | |
12086 | * Return: Non-zero value on failure. | |
12087 | */ | |
12088 | int | |
852e85a7 JP |
12089 | devl_trap_policers_register(struct devlink *devlink, |
12090 | const struct devlink_trap_policer *policers, | |
12091 | size_t policers_count) | |
1e8c6619 IS |
12092 | { |
12093 | int i, err; | |
12094 | ||
852e85a7 | 12095 | devl_assert_locked(devlink); |
1e8c6619 IS |
12096 | for (i = 0; i < policers_count; i++) { |
12097 | const struct devlink_trap_policer *policer = &policers[i]; | |
12098 | ||
12099 | if (WARN_ON(policer->id == 0 || | |
12100 | policer->max_rate < policer->min_rate || | |
12101 | policer->max_burst < policer->min_burst)) { | |
12102 | err = -EINVAL; | |
12103 | goto err_trap_policer_verify; | |
12104 | } | |
12105 | ||
12106 | err = devlink_trap_policer_register(devlink, policer); | |
12107 | if (err) | |
12108 | goto err_trap_policer_register; | |
12109 | } | |
1e8c6619 IS |
12110 | return 0; |
12111 | ||
12112 | err_trap_policer_register: | |
12113 | err_trap_policer_verify: | |
12114 | for (i--; i >= 0; i--) | |
12115 | devlink_trap_policer_unregister(devlink, &policers[i]); | |
852e85a7 JP |
12116 | return err; |
12117 | } | |
12118 | EXPORT_SYMBOL_GPL(devl_trap_policers_register); | |
12119 | ||
852e85a7 JP |
12120 | /** |
12121 | * devl_trap_policers_unregister - Unregister packet trap policers from devlink. | |
12122 | * @devlink: devlink. | |
12123 | * @policers: Packet trap policers. | |
12124 | * @policers_count: Count of provided packet trap policers. | |
12125 | */ | |
12126 | void | |
12127 | devl_trap_policers_unregister(struct devlink *devlink, | |
12128 | const struct devlink_trap_policer *policers, | |
12129 | size_t policers_count) | |
12130 | { | |
12131 | int i; | |
12132 | ||
12133 | devl_assert_locked(devlink); | |
12134 | for (i = policers_count - 1; i >= 0; i--) | |
12135 | devlink_trap_policer_unregister(devlink, &policers[i]); | |
12136 | } | |
12137 | EXPORT_SYMBOL_GPL(devl_trap_policers_unregister); | |
12138 | ||
ddb6e99e JK |
12139 | static void __devlink_compat_running_version(struct devlink *devlink, |
12140 | char *buf, size_t len) | |
12141 | { | |
12142 | const struct nlattr *nlattr; | |
12143 | struct devlink_info_req req; | |
12144 | struct sk_buff *msg; | |
12145 | int rem, err; | |
12146 | ||
ddb6e99e JK |
12147 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
12148 | if (!msg) | |
12149 | return; | |
12150 | ||
12151 | req.msg = msg; | |
12152 | err = devlink->ops->info_get(devlink, &req, NULL); | |
12153 | if (err) | |
12154 | goto free_msg; | |
12155 | ||
12156 | nla_for_each_attr(nlattr, (void *)msg->data, msg->len, rem) { | |
12157 | const struct nlattr *kv; | |
12158 | int rem_kv; | |
12159 | ||
12160 | if (nla_type(nlattr) != DEVLINK_ATTR_INFO_VERSION_RUNNING) | |
12161 | continue; | |
12162 | ||
12163 | nla_for_each_nested(kv, nlattr, rem_kv) { | |
12164 | if (nla_type(kv) != DEVLINK_ATTR_INFO_VERSION_VALUE) | |
12165 | continue; | |
12166 | ||
12167 | strlcat(buf, nla_data(kv), len); | |
12168 | strlcat(buf, " ", len); | |
12169 | } | |
12170 | } | |
12171 | free_msg: | |
12172 | nlmsg_free(msg); | |
12173 | } | |
12174 | ||
2bc50987 LR |
12175 | static struct devlink_port *netdev_to_devlink_port(struct net_device *dev) |
12176 | { | |
12177 | if (!dev->netdev_ops->ndo_get_devlink_port) | |
12178 | return NULL; | |
12179 | ||
12180 | return dev->netdev_ops->ndo_get_devlink_port(dev); | |
12181 | } | |
12182 | ||
1af0a094 | 12183 | void devlink_compat_running_version(struct devlink *devlink, |
ddb6e99e JK |
12184 | char *buf, size_t len) |
12185 | { | |
1af0a094 JK |
12186 | if (!devlink->ops->info_get) |
12187 | return; | |
b473b0d2 | 12188 | |
7715023a | 12189 | devl_lock(devlink); |
b473b0d2 | 12190 | __devlink_compat_running_version(devlink, buf, len); |
7715023a | 12191 | devl_unlock(devlink); |
ddb6e99e JK |
12192 | } |
12193 | ||
1af0a094 | 12194 | int devlink_compat_flash_update(struct devlink *devlink, const char *file_name) |
4eceba17 | 12195 | { |
bc75c054 | 12196 | struct devlink_flash_update_params params = {}; |
e0dcd386 | 12197 | int ret; |
4eceba17 | 12198 | |
1af0a094 JK |
12199 | if (!devlink->ops->flash_update) |
12200 | return -EOPNOTSUPP; | |
4eceba17 | 12201 | |
b44cfd4f JK |
12202 | ret = request_firmware(¶ms.fw, file_name, devlink->dev); |
12203 | if (ret) | |
1af0a094 | 12204 | return ret; |
bc75c054 | 12205 | |
7715023a | 12206 | devl_lock(devlink); |
52cc5f3a | 12207 | devlink_flash_update_begin_notify(devlink); |
bc75c054 | 12208 | ret = devlink->ops->flash_update(devlink, ¶ms, NULL); |
52cc5f3a | 12209 | devlink_flash_update_end_notify(devlink); |
7715023a | 12210 | devl_unlock(devlink); |
1b45ff6c | 12211 | |
b44cfd4f JK |
12212 | release_firmware(params.fw); |
12213 | ||
b473b0d2 | 12214 | return ret; |
4eceba17 JK |
12215 | } |
12216 | ||
af3836df JP |
12217 | int devlink_compat_phys_port_name_get(struct net_device *dev, |
12218 | char *name, size_t len) | |
12219 | { | |
12220 | struct devlink_port *devlink_port; | |
12221 | ||
12222 | /* RTNL mutex is held here which ensures that devlink_port | |
12223 | * instance cannot disappear in the middle. No need to take | |
12224 | * any devlink lock as only permanent values are accessed. | |
12225 | */ | |
12226 | ASSERT_RTNL(); | |
12227 | ||
12228 | devlink_port = netdev_to_devlink_port(dev); | |
12229 | if (!devlink_port) | |
12230 | return -EOPNOTSUPP; | |
12231 | ||
12232 | return __devlink_port_phys_port_name_get(devlink_port, name, len); | |
12233 | } | |
12234 | ||
7e1146e8 JP |
12235 | int devlink_compat_switch_id_get(struct net_device *dev, |
12236 | struct netdev_phys_item_id *ppid) | |
12237 | { | |
12238 | struct devlink_port *devlink_port; | |
12239 | ||
043b8413 VB |
12240 | /* Caller must hold RTNL mutex or reference to dev, which ensures that |
12241 | * devlink_port instance cannot disappear in the middle. No need to take | |
7e1146e8 JP |
12242 | * any devlink lock as only permanent values are accessed. |
12243 | */ | |
7e1146e8 | 12244 | devlink_port = netdev_to_devlink_port(dev); |
46737a19 | 12245 | if (!devlink_port || !devlink_port->switch_port) |
7e1146e8 JP |
12246 | return -EOPNOTSUPP; |
12247 | ||
12248 | memcpy(ppid, &devlink_port->attrs.switch_id, sizeof(*ppid)); | |
12249 | ||
12250 | return 0; | |
12251 | } | |
12252 | ||
070c63f2 JP |
12253 | static void __net_exit devlink_pernet_pre_exit(struct net *net) |
12254 | { | |
12255 | struct devlink *devlink; | |
ccdf0721 | 12256 | u32 actions_performed; |
11a861d7 | 12257 | unsigned long index; |
070c63f2 JP |
12258 | int err; |
12259 | ||
12260 | /* In case network namespace is getting destroyed, reload | |
12261 | * all devlink instances from this namespace into init_net. | |
12262 | */ | |
12263 | mutex_lock(&devlink_mutex); | |
294c4f57 | 12264 | devlinks_xa_for_each_registered_get(net, index, devlink) { |
82465bec | 12265 | WARN_ON(!(devlink->features & DEVLINK_F_RELOAD)); |
cbf6ab67 LR |
12266 | err = devlink_reload(devlink, &init_net, |
12267 | DEVLINK_RELOAD_ACTION_DRIVER_REINIT, | |
12268 | DEVLINK_RELOAD_LIMIT_UNSPEC, | |
12269 | &actions_performed, NULL); | |
12270 | if (err && err != -EOPNOTSUPP) | |
12271 | pr_warn("Failed to reload devlink instance into init_net\n"); | |
437ebfd9 | 12272 | devlink_put(devlink); |
070c63f2 JP |
12273 | } |
12274 | mutex_unlock(&devlink_mutex); | |
12275 | } | |
12276 | ||
12277 | static struct pernet_operations devlink_pernet_ops __net_initdata = { | |
12278 | .pre_exit = devlink_pernet_pre_exit, | |
12279 | }; | |
12280 | ||
f4b6bcc7 | 12281 | static int __init devlink_init(void) |
bfcd3a46 | 12282 | { |
070c63f2 JP |
12283 | int err; |
12284 | ||
12285 | err = genl_register_family(&devlink_nl_family); | |
12286 | if (err) | |
12287 | goto out; | |
12288 | err = register_pernet_subsys(&devlink_pernet_ops); | |
12289 | ||
12290 | out: | |
12291 | WARN_ON(err); | |
12292 | return err; | |
bfcd3a46 JP |
12293 | } |
12294 | ||
f4b6bcc7 | 12295 | subsys_initcall(devlink_init); |