Commit | Line | Data |
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2874c5fd | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
bfcd3a46 JP |
2 | /* |
3 | * net/core/devlink.c - Network physical/parent device Netlink interface | |
4 | * | |
5 | * Heavily inspired by net/wireless/ | |
6 | * Copyright (c) 2016 Mellanox Technologies. All rights reserved. | |
7 | * Copyright (c) 2016 Jiri Pirko <jiri@mellanox.com> | |
bfcd3a46 JP |
8 | */ |
9 | ||
b6459415 | 10 | #include <linux/etherdevice.h> |
bfcd3a46 JP |
11 | #include <linux/kernel.h> |
12 | #include <linux/module.h> | |
13 | #include <linux/types.h> | |
14 | #include <linux/slab.h> | |
15 | #include <linux/gfp.h> | |
16 | #include <linux/device.h> | |
17 | #include <linux/list.h> | |
18 | #include <linux/netdevice.h> | |
b8f97554 | 19 | #include <linux/spinlock.h> |
b587bdaf | 20 | #include <linux/refcount.h> |
136bf27f | 21 | #include <linux/workqueue.h> |
0f420b6c IS |
22 | #include <linux/u64_stats_sync.h> |
23 | #include <linux/timekeeping.h> | |
bfcd3a46 JP |
24 | #include <rdma/ib_verbs.h> |
25 | #include <net/netlink.h> | |
26 | #include <net/genetlink.h> | |
27 | #include <net/rtnetlink.h> | |
28 | #include <net/net_namespace.h> | |
29 | #include <net/sock.h> | |
30 | #include <net/devlink.h> | |
e5224f0f JP |
31 | #define CREATE_TRACE_POINTS |
32 | #include <trace/events/devlink.h> | |
33 | ||
21314638 LR |
34 | #define DEVLINK_RELOAD_STATS_ARRAY_SIZE \ |
35 | (__DEVLINK_RELOAD_LIMIT_MAX * __DEVLINK_RELOAD_ACTION_MAX) | |
36 | ||
37 | struct devlink_dev_stats { | |
38 | u32 reload_stats[DEVLINK_RELOAD_STATS_ARRAY_SIZE]; | |
39 | u32 remote_reload_stats[DEVLINK_RELOAD_STATS_ARRAY_SIZE]; | |
40 | }; | |
41 | ||
42 | struct devlink { | |
43 | u32 index; | |
44 | struct list_head port_list; | |
45 | struct list_head rate_list; | |
46 | struct list_head sb_list; | |
47 | struct list_head dpipe_table_list; | |
48 | struct list_head resource_list; | |
49 | struct list_head param_list; | |
50 | struct list_head region_list; | |
51 | struct list_head reporter_list; | |
52 | struct mutex reporters_lock; /* protects reporter_list */ | |
53 | struct devlink_dpipe_headers *dpipe_headers; | |
54 | struct list_head trap_list; | |
55 | struct list_head trap_group_list; | |
56 | struct list_head trap_policer_list; | |
c246f9b5 JP |
57 | struct list_head linecard_list; |
58 | struct mutex linecards_lock; /* protects linecard_list */ | |
21314638 | 59 | const struct devlink_ops *ops; |
bd032e35 | 60 | u64 features; |
21314638 LR |
61 | struct xarray snapshot_ids; |
62 | struct devlink_dev_stats stats; | |
63 | struct device *dev; | |
64 | possible_net_t _net; | |
65 | /* Serializes access to devlink instance specific objects such as | |
66 | * port, sb, dpipe, resource, params, region, traps and more. | |
67 | */ | |
68 | struct mutex lock; | |
e26fde2f | 69 | struct lock_class_key lock_key; |
82465bec | 70 | u8 reload_failed:1; |
21314638 LR |
71 | refcount_t refcount; |
72 | struct completion comp; | |
30bab7cd | 73 | struct rcu_head rcu; |
96d0c9be | 74 | char priv[] __aligned(NETDEV_ALIGN); |
21314638 LR |
75 | }; |
76 | ||
fcdc8ce2 JP |
77 | struct devlink_linecard_ops; |
78 | struct devlink_linecard_type; | |
79 | ||
c246f9b5 JP |
80 | struct devlink_linecard { |
81 | struct list_head list; | |
82 | struct devlink *devlink; | |
83 | unsigned int index; | |
84 | refcount_t refcount; | |
fcdc8ce2 JP |
85 | const struct devlink_linecard_ops *ops; |
86 | void *priv; | |
87 | enum devlink_linecard_state state; | |
c4a67a21 | 88 | struct mutex state_lock; /* Protects state */ |
fcdc8ce2 JP |
89 | const char *type; |
90 | struct devlink_linecard_type *types; | |
91 | unsigned int types_count; | |
7b2d9a1a | 92 | struct devlink *nested_devlink; |
c246f9b5 JP |
93 | }; |
94 | ||
4c897cfc LR |
95 | /** |
96 | * struct devlink_resource - devlink resource | |
97 | * @name: name of the resource | |
98 | * @id: id, per devlink instance | |
99 | * @size: size of the resource | |
100 | * @size_new: updated size of the resource, reload is needed | |
101 | * @size_valid: valid in case the total size of the resource is valid | |
102 | * including its children | |
103 | * @parent: parent resource | |
104 | * @size_params: size parameters | |
105 | * @list: parent list | |
106 | * @resource_list: list of child resources | |
107 | * @occ_get: occupancy getter callback | |
108 | * @occ_get_priv: occupancy getter callback priv | |
109 | */ | |
110 | struct devlink_resource { | |
111 | const char *name; | |
112 | u64 id; | |
113 | u64 size; | |
114 | u64 size_new; | |
115 | bool size_valid; | |
116 | struct devlink_resource *parent; | |
117 | struct devlink_resource_size_params size_params; | |
118 | struct list_head list; | |
119 | struct list_head resource_list; | |
120 | devlink_resource_occ_get_t *occ_get; | |
121 | void *occ_get_priv; | |
122 | }; | |
123 | ||
21314638 LR |
124 | void *devlink_priv(struct devlink *devlink) |
125 | { | |
126 | return &devlink->priv; | |
127 | } | |
128 | EXPORT_SYMBOL_GPL(devlink_priv); | |
129 | ||
130 | struct devlink *priv_to_devlink(void *priv) | |
131 | { | |
132 | return container_of(priv, struct devlink, priv); | |
133 | } | |
134 | EXPORT_SYMBOL_GPL(priv_to_devlink); | |
135 | ||
136 | struct device *devlink_to_dev(const struct devlink *devlink) | |
137 | { | |
138 | return devlink->dev; | |
139 | } | |
140 | EXPORT_SYMBOL_GPL(devlink_to_dev); | |
141 | ||
11770091 AS |
142 | static struct devlink_dpipe_field devlink_dpipe_fields_ethernet[] = { |
143 | { | |
12bdc5e1 | 144 | .name = "destination mac", |
11770091 AS |
145 | .id = DEVLINK_DPIPE_FIELD_ETHERNET_DST_MAC, |
146 | .bitwidth = 48, | |
147 | }, | |
148 | }; | |
149 | ||
150 | struct devlink_dpipe_header devlink_dpipe_header_ethernet = { | |
151 | .name = "ethernet", | |
152 | .id = DEVLINK_DPIPE_HEADER_ETHERNET, | |
153 | .fields = devlink_dpipe_fields_ethernet, | |
154 | .fields_count = ARRAY_SIZE(devlink_dpipe_fields_ethernet), | |
155 | .global = true, | |
156 | }; | |
c52ef04d | 157 | EXPORT_SYMBOL_GPL(devlink_dpipe_header_ethernet); |
11770091 | 158 | |
3fb886ec AS |
159 | static struct devlink_dpipe_field devlink_dpipe_fields_ipv4[] = { |
160 | { | |
161 | .name = "destination ip", | |
162 | .id = DEVLINK_DPIPE_FIELD_IPV4_DST_IP, | |
163 | .bitwidth = 32, | |
164 | }, | |
165 | }; | |
166 | ||
167 | struct devlink_dpipe_header devlink_dpipe_header_ipv4 = { | |
168 | .name = "ipv4", | |
169 | .id = DEVLINK_DPIPE_HEADER_IPV4, | |
170 | .fields = devlink_dpipe_fields_ipv4, | |
171 | .fields_count = ARRAY_SIZE(devlink_dpipe_fields_ipv4), | |
172 | .global = true, | |
173 | }; | |
c52ef04d | 174 | EXPORT_SYMBOL_GPL(devlink_dpipe_header_ipv4); |
3fb886ec | 175 | |
1797f5b3 AS |
176 | static struct devlink_dpipe_field devlink_dpipe_fields_ipv6[] = { |
177 | { | |
178 | .name = "destination ip", | |
179 | .id = DEVLINK_DPIPE_FIELD_IPV6_DST_IP, | |
180 | .bitwidth = 128, | |
181 | }, | |
182 | }; | |
183 | ||
184 | struct devlink_dpipe_header devlink_dpipe_header_ipv6 = { | |
185 | .name = "ipv6", | |
186 | .id = DEVLINK_DPIPE_HEADER_IPV6, | |
187 | .fields = devlink_dpipe_fields_ipv6, | |
188 | .fields_count = ARRAY_SIZE(devlink_dpipe_fields_ipv6), | |
189 | .global = true, | |
190 | }; | |
c52ef04d | 191 | EXPORT_SYMBOL_GPL(devlink_dpipe_header_ipv6); |
1797f5b3 | 192 | |
e5224f0f | 193 | EXPORT_TRACEPOINT_SYMBOL_GPL(devlink_hwmsg); |
57186a5f | 194 | EXPORT_TRACEPOINT_SYMBOL_GPL(devlink_hwerr); |
5b88823b | 195 | EXPORT_TRACEPOINT_SYMBOL_GPL(devlink_trap_report); |
bfcd3a46 | 196 | |
a1e8ae90 PP |
197 | static const struct nla_policy devlink_function_nl_policy[DEVLINK_PORT_FUNCTION_ATTR_MAX + 1] = { |
198 | [DEVLINK_PORT_FUNCTION_ATTR_HW_ADDR] = { .type = NLA_BINARY }, | |
a556dded PP |
199 | [DEVLINK_PORT_FN_ATTR_STATE] = |
200 | NLA_POLICY_RANGE(NLA_U8, DEVLINK_PORT_FN_STATE_INACTIVE, | |
201 | DEVLINK_PORT_FN_STATE_ACTIVE), | |
a1e8ae90 PP |
202 | }; |
203 | ||
08f588fa VG |
204 | static const struct nla_policy devlink_selftest_nl_policy[DEVLINK_ATTR_SELFTEST_ID_MAX + 1] = { |
205 | [DEVLINK_ATTR_SELFTEST_ID_FLASH] = { .type = NLA_FLAG }, | |
206 | }; | |
207 | ||
11a861d7 LR |
208 | static DEFINE_XARRAY_FLAGS(devlinks, XA_FLAGS_ALLOC); |
209 | #define DEVLINK_REGISTERED XA_MARK_1 | |
c2368b19 | 210 | #define DEVLINK_UNREGISTERING XA_MARK_2 |
bfcd3a46 | 211 | |
b88f7b12 LR |
212 | /* devlink instances are open to the access from the user space after |
213 | * devlink_register() call. Such logical barrier allows us to have certain | |
214 | * expectations related to locking. | |
215 | * | |
216 | * Before *_register() - we are in initialization stage and no parallel | |
217 | * access possible to the devlink instance. All drivers perform that phase | |
218 | * by implicitly holding device_lock. | |
219 | * | |
220 | * After *_register() - users and driver can access devlink instance at | |
221 | * the same time. | |
222 | */ | |
223 | #define ASSERT_DEVLINK_REGISTERED(d) \ | |
224 | WARN_ON_ONCE(!xa_get_mark(&devlinks, (d)->index, DEVLINK_REGISTERED)) | |
225 | #define ASSERT_DEVLINK_NOT_REGISTERED(d) \ | |
226 | WARN_ON_ONCE(xa_get_mark(&devlinks, (d)->index, DEVLINK_REGISTERED)) | |
227 | ||
471f894f | 228 | struct net *devlink_net(const struct devlink *devlink) |
bfcd3a46 JP |
229 | { |
230 | return read_pnet(&devlink->_net); | |
231 | } | |
471f894f | 232 | EXPORT_SYMBOL_GPL(devlink_net); |
bfcd3a46 | 233 | |
30bab7cd JP |
234 | static void __devlink_put_rcu(struct rcu_head *head) |
235 | { | |
236 | struct devlink *devlink = container_of(head, struct devlink, rcu); | |
237 | ||
238 | complete(&devlink->comp); | |
239 | } | |
240 | ||
46db1b77 | 241 | void devlink_put(struct devlink *devlink) |
437ebfd9 LR |
242 | { |
243 | if (refcount_dec_and_test(&devlink->refcount)) | |
30bab7cd JP |
244 | /* Make sure unregister operation that may await the completion |
245 | * is unblocked only after all users are after the end of | |
246 | * RCU grace period. | |
247 | */ | |
248 | call_rcu(&devlink->rcu, __devlink_put_rcu); | |
437ebfd9 LR |
249 | } |
250 | ||
46db1b77 | 251 | struct devlink *__must_check devlink_try_get(struct devlink *devlink) |
437ebfd9 | 252 | { |
46db1b77 JK |
253 | if (refcount_inc_not_zero(&devlink->refcount)) |
254 | return devlink; | |
255 | return NULL; | |
437ebfd9 LR |
256 | } |
257 | ||
2cb7b489 JK |
258 | void devl_assert_locked(struct devlink *devlink) |
259 | { | |
260 | lockdep_assert_held(&devlink->lock); | |
261 | } | |
262 | EXPORT_SYMBOL_GPL(devl_assert_locked); | |
263 | ||
264 | #ifdef CONFIG_LOCKDEP | |
265 | /* For use in conjunction with LOCKDEP only e.g. rcu_dereference_protected() */ | |
266 | bool devl_lock_is_held(struct devlink *devlink) | |
267 | { | |
268 | return lockdep_is_held(&devlink->lock); | |
269 | } | |
270 | EXPORT_SYMBOL_GPL(devl_lock_is_held); | |
271 | #endif | |
272 | ||
273 | void devl_lock(struct devlink *devlink) | |
274 | { | |
275 | mutex_lock(&devlink->lock); | |
276 | } | |
277 | EXPORT_SYMBOL_GPL(devl_lock); | |
278 | ||
012ec02a JP |
279 | int devl_trylock(struct devlink *devlink) |
280 | { | |
281 | return mutex_trylock(&devlink->lock); | |
282 | } | |
283 | EXPORT_SYMBOL_GPL(devl_trylock); | |
284 | ||
2cb7b489 JK |
285 | void devl_unlock(struct devlink *devlink) |
286 | { | |
287 | mutex_unlock(&devlink->lock); | |
288 | } | |
289 | EXPORT_SYMBOL_GPL(devl_unlock); | |
290 | ||
30bab7cd | 291 | static struct devlink * |
294c4f57 | 292 | devlinks_xa_find_get(struct net *net, unsigned long *indexp, xa_mark_t filter, |
30bab7cd JP |
293 | void * (*xa_find_fn)(struct xarray *, unsigned long *, |
294 | unsigned long, xa_mark_t)) | |
295 | { | |
296 | struct devlink *devlink; | |
297 | ||
298 | rcu_read_lock(); | |
299 | retry: | |
300 | devlink = xa_find_fn(&devlinks, indexp, ULONG_MAX, DEVLINK_REGISTERED); | |
301 | if (!devlink) | |
302 | goto unlock; | |
c2368b19 JP |
303 | |
304 | /* In case devlink_unregister() was already called and "unregistering" | |
305 | * mark was set, do not allow to get a devlink reference here. | |
306 | * This prevents live-lock of devlink_unregister() wait for completion. | |
307 | */ | |
308 | if (xa_get_mark(&devlinks, *indexp, DEVLINK_UNREGISTERING)) | |
309 | goto retry; | |
310 | ||
30bab7cd JP |
311 | /* For a possible retry, the xa_find_after() should be always used */ |
312 | xa_find_fn = xa_find_after; | |
313 | if (!devlink_try_get(devlink)) | |
314 | goto retry; | |
294c4f57 JP |
315 | if (!net_eq(devlink_net(devlink), net)) { |
316 | devlink_put(devlink); | |
317 | goto retry; | |
318 | } | |
30bab7cd JP |
319 | unlock: |
320 | rcu_read_unlock(); | |
321 | return devlink; | |
322 | } | |
323 | ||
294c4f57 JP |
324 | static struct devlink *devlinks_xa_find_get_first(struct net *net, |
325 | unsigned long *indexp, | |
30bab7cd JP |
326 | xa_mark_t filter) |
327 | { | |
294c4f57 | 328 | return devlinks_xa_find_get(net, indexp, filter, xa_find); |
30bab7cd JP |
329 | } |
330 | ||
294c4f57 JP |
331 | static struct devlink *devlinks_xa_find_get_next(struct net *net, |
332 | unsigned long *indexp, | |
30bab7cd JP |
333 | xa_mark_t filter) |
334 | { | |
294c4f57 | 335 | return devlinks_xa_find_get(net, indexp, filter, xa_find_after); |
30bab7cd JP |
336 | } |
337 | ||
338 | /* Iterate over devlink pointers which were possible to get reference to. | |
339 | * devlink_put() needs to be called for each iterated devlink pointer | |
340 | * in loop body in order to release the reference. | |
341 | */ | |
294c4f57 JP |
342 | #define devlinks_xa_for_each_get(net, index, devlink, filter) \ |
343 | for (index = 0, \ | |
344 | devlink = devlinks_xa_find_get_first(net, &index, filter); \ | |
345 | devlink; devlink = devlinks_xa_find_get_next(net, &index, filter)) | |
30bab7cd | 346 | |
294c4f57 JP |
347 | #define devlinks_xa_for_each_registered_get(net, index, devlink) \ |
348 | devlinks_xa_for_each_get(net, index, devlink, DEVLINK_REGISTERED) | |
30bab7cd | 349 | |
bfcd3a46 JP |
350 | static struct devlink *devlink_get_from_attrs(struct net *net, |
351 | struct nlattr **attrs) | |
352 | { | |
353 | struct devlink *devlink; | |
11a861d7 | 354 | unsigned long index; |
bfcd3a46 JP |
355 | char *busname; |
356 | char *devname; | |
357 | ||
358 | if (!attrs[DEVLINK_ATTR_BUS_NAME] || !attrs[DEVLINK_ATTR_DEV_NAME]) | |
359 | return ERR_PTR(-EINVAL); | |
360 | ||
361 | busname = nla_data(attrs[DEVLINK_ATTR_BUS_NAME]); | |
362 | devname = nla_data(attrs[DEVLINK_ATTR_DEV_NAME]); | |
363 | ||
294c4f57 | 364 | devlinks_xa_for_each_registered_get(net, index, devlink) { |
bfcd3a46 | 365 | if (strcmp(devlink->dev->bus->name, busname) == 0 && |
294c4f57 | 366 | strcmp(dev_name(devlink->dev), devname) == 0) |
30bab7cd JP |
367 | return devlink; |
368 | devlink_put(devlink); | |
bfcd3a46 JP |
369 | } |
370 | ||
30bab7cd | 371 | return ERR_PTR(-ENODEV); |
bfcd3a46 JP |
372 | } |
373 | ||
374 | static struct devlink_port *devlink_port_get_by_index(struct devlink *devlink, | |
c7282b50 | 375 | unsigned int port_index) |
bfcd3a46 JP |
376 | { |
377 | struct devlink_port *devlink_port; | |
378 | ||
379 | list_for_each_entry(devlink_port, &devlink->port_list, list) { | |
380 | if (devlink_port->index == port_index) | |
381 | return devlink_port; | |
382 | } | |
383 | return NULL; | |
384 | } | |
385 | ||
c7282b50 PP |
386 | static bool devlink_port_index_exists(struct devlink *devlink, |
387 | unsigned int port_index) | |
bfcd3a46 JP |
388 | { |
389 | return devlink_port_get_by_index(devlink, port_index); | |
390 | } | |
391 | ||
392 | static struct devlink_port *devlink_port_get_from_attrs(struct devlink *devlink, | |
393 | struct nlattr **attrs) | |
394 | { | |
395 | if (attrs[DEVLINK_ATTR_PORT_INDEX]) { | |
396 | u32 port_index = nla_get_u32(attrs[DEVLINK_ATTR_PORT_INDEX]); | |
397 | struct devlink_port *devlink_port; | |
398 | ||
399 | devlink_port = devlink_port_get_by_index(devlink, port_index); | |
400 | if (!devlink_port) | |
401 | return ERR_PTR(-ENODEV); | |
402 | return devlink_port; | |
403 | } | |
404 | return ERR_PTR(-EINVAL); | |
405 | } | |
406 | ||
407 | static struct devlink_port *devlink_port_get_from_info(struct devlink *devlink, | |
408 | struct genl_info *info) | |
409 | { | |
410 | return devlink_port_get_from_attrs(devlink, info->attrs); | |
411 | } | |
412 | ||
4677efc4 DL |
413 | static inline bool |
414 | devlink_rate_is_leaf(struct devlink_rate *devlink_rate) | |
415 | { | |
416 | return devlink_rate->type == DEVLINK_RATE_TYPE_LEAF; | |
417 | } | |
418 | ||
a8ecb93e DL |
419 | static inline bool |
420 | devlink_rate_is_node(struct devlink_rate *devlink_rate) | |
421 | { | |
422 | return devlink_rate->type == DEVLINK_RATE_TYPE_NODE; | |
423 | } | |
424 | ||
4677efc4 DL |
425 | static struct devlink_rate * |
426 | devlink_rate_leaf_get_from_info(struct devlink *devlink, struct genl_info *info) | |
427 | { | |
428 | struct devlink_rate *devlink_rate; | |
429 | struct devlink_port *devlink_port; | |
430 | ||
431 | devlink_port = devlink_port_get_from_attrs(devlink, info->attrs); | |
432 | if (IS_ERR(devlink_port)) | |
433 | return ERR_CAST(devlink_port); | |
434 | devlink_rate = devlink_port->devlink_rate; | |
435 | return devlink_rate ?: ERR_PTR(-ENODEV); | |
436 | } | |
437 | ||
a8ecb93e DL |
438 | static struct devlink_rate * |
439 | devlink_rate_node_get_by_name(struct devlink *devlink, const char *node_name) | |
440 | { | |
441 | static struct devlink_rate *devlink_rate; | |
442 | ||
443 | list_for_each_entry(devlink_rate, &devlink->rate_list, list) { | |
444 | if (devlink_rate_is_node(devlink_rate) && | |
445 | !strcmp(node_name, devlink_rate->name)) | |
446 | return devlink_rate; | |
447 | } | |
448 | return ERR_PTR(-ENODEV); | |
449 | } | |
450 | ||
451 | static struct devlink_rate * | |
452 | devlink_rate_node_get_from_attrs(struct devlink *devlink, struct nlattr **attrs) | |
453 | { | |
454 | const char *rate_node_name; | |
455 | size_t len; | |
456 | ||
457 | if (!attrs[DEVLINK_ATTR_RATE_NODE_NAME]) | |
458 | return ERR_PTR(-EINVAL); | |
459 | rate_node_name = nla_data(attrs[DEVLINK_ATTR_RATE_NODE_NAME]); | |
460 | len = strlen(rate_node_name); | |
461 | /* Name cannot be empty or decimal number */ | |
462 | if (!len || strspn(rate_node_name, "0123456789") == len) | |
463 | return ERR_PTR(-EINVAL); | |
464 | ||
465 | return devlink_rate_node_get_by_name(devlink, rate_node_name); | |
466 | } | |
467 | ||
468 | static struct devlink_rate * | |
469 | devlink_rate_node_get_from_info(struct devlink *devlink, struct genl_info *info) | |
470 | { | |
471 | return devlink_rate_node_get_from_attrs(devlink, info->attrs); | |
472 | } | |
473 | ||
474 | static struct devlink_rate * | |
475 | devlink_rate_get_from_info(struct devlink *devlink, struct genl_info *info) | |
476 | { | |
477 | struct nlattr **attrs = info->attrs; | |
478 | ||
479 | if (attrs[DEVLINK_ATTR_PORT_INDEX]) | |
480 | return devlink_rate_leaf_get_from_info(devlink, info); | |
481 | else if (attrs[DEVLINK_ATTR_RATE_NODE_NAME]) | |
482 | return devlink_rate_node_get_from_info(devlink, info); | |
483 | else | |
484 | return ERR_PTR(-EINVAL); | |
485 | } | |
486 | ||
c246f9b5 JP |
487 | static struct devlink_linecard * |
488 | devlink_linecard_get_by_index(struct devlink *devlink, | |
489 | unsigned int linecard_index) | |
490 | { | |
491 | struct devlink_linecard *devlink_linecard; | |
492 | ||
493 | list_for_each_entry(devlink_linecard, &devlink->linecard_list, list) { | |
494 | if (devlink_linecard->index == linecard_index) | |
495 | return devlink_linecard; | |
496 | } | |
497 | return NULL; | |
498 | } | |
499 | ||
500 | static bool devlink_linecard_index_exists(struct devlink *devlink, | |
501 | unsigned int linecard_index) | |
502 | { | |
503 | return devlink_linecard_get_by_index(devlink, linecard_index); | |
504 | } | |
505 | ||
506 | static struct devlink_linecard * | |
507 | devlink_linecard_get_from_attrs(struct devlink *devlink, struct nlattr **attrs) | |
508 | { | |
509 | if (attrs[DEVLINK_ATTR_LINECARD_INDEX]) { | |
510 | u32 linecard_index = nla_get_u32(attrs[DEVLINK_ATTR_LINECARD_INDEX]); | |
511 | struct devlink_linecard *linecard; | |
512 | ||
513 | mutex_lock(&devlink->linecards_lock); | |
514 | linecard = devlink_linecard_get_by_index(devlink, linecard_index); | |
515 | if (linecard) | |
516 | refcount_inc(&linecard->refcount); | |
517 | mutex_unlock(&devlink->linecards_lock); | |
518 | if (!linecard) | |
519 | return ERR_PTR(-ENODEV); | |
520 | return linecard; | |
521 | } | |
522 | return ERR_PTR(-EINVAL); | |
523 | } | |
524 | ||
525 | static struct devlink_linecard * | |
526 | devlink_linecard_get_from_info(struct devlink *devlink, struct genl_info *info) | |
527 | { | |
528 | return devlink_linecard_get_from_attrs(devlink, info->attrs); | |
529 | } | |
530 | ||
531 | static void devlink_linecard_put(struct devlink_linecard *linecard) | |
532 | { | |
fcdc8ce2 JP |
533 | if (refcount_dec_and_test(&linecard->refcount)) { |
534 | mutex_destroy(&linecard->state_lock); | |
c246f9b5 | 535 | kfree(linecard); |
fcdc8ce2 | 536 | } |
c246f9b5 JP |
537 | } |
538 | ||
bf797471 JP |
539 | struct devlink_sb { |
540 | struct list_head list; | |
541 | unsigned int index; | |
542 | u32 size; | |
543 | u16 ingress_pools_count; | |
544 | u16 egress_pools_count; | |
545 | u16 ingress_tc_count; | |
546 | u16 egress_tc_count; | |
547 | }; | |
548 | ||
549 | static u16 devlink_sb_pool_count(struct devlink_sb *devlink_sb) | |
550 | { | |
551 | return devlink_sb->ingress_pools_count + devlink_sb->egress_pools_count; | |
552 | } | |
553 | ||
554 | static struct devlink_sb *devlink_sb_get_by_index(struct devlink *devlink, | |
555 | unsigned int sb_index) | |
556 | { | |
557 | struct devlink_sb *devlink_sb; | |
558 | ||
559 | list_for_each_entry(devlink_sb, &devlink->sb_list, list) { | |
560 | if (devlink_sb->index == sb_index) | |
561 | return devlink_sb; | |
562 | } | |
563 | return NULL; | |
564 | } | |
565 | ||
566 | static bool devlink_sb_index_exists(struct devlink *devlink, | |
567 | unsigned int sb_index) | |
568 | { | |
569 | return devlink_sb_get_by_index(devlink, sb_index); | |
570 | } | |
571 | ||
572 | static struct devlink_sb *devlink_sb_get_from_attrs(struct devlink *devlink, | |
573 | struct nlattr **attrs) | |
574 | { | |
575 | if (attrs[DEVLINK_ATTR_SB_INDEX]) { | |
576 | u32 sb_index = nla_get_u32(attrs[DEVLINK_ATTR_SB_INDEX]); | |
577 | struct devlink_sb *devlink_sb; | |
578 | ||
579 | devlink_sb = devlink_sb_get_by_index(devlink, sb_index); | |
580 | if (!devlink_sb) | |
581 | return ERR_PTR(-ENODEV); | |
582 | return devlink_sb; | |
583 | } | |
584 | return ERR_PTR(-EINVAL); | |
585 | } | |
586 | ||
587 | static struct devlink_sb *devlink_sb_get_from_info(struct devlink *devlink, | |
588 | struct genl_info *info) | |
589 | { | |
590 | return devlink_sb_get_from_attrs(devlink, info->attrs); | |
591 | } | |
592 | ||
593 | static int devlink_sb_pool_index_get_from_attrs(struct devlink_sb *devlink_sb, | |
594 | struct nlattr **attrs, | |
595 | u16 *p_pool_index) | |
596 | { | |
597 | u16 val; | |
598 | ||
599 | if (!attrs[DEVLINK_ATTR_SB_POOL_INDEX]) | |
600 | return -EINVAL; | |
601 | ||
602 | val = nla_get_u16(attrs[DEVLINK_ATTR_SB_POOL_INDEX]); | |
603 | if (val >= devlink_sb_pool_count(devlink_sb)) | |
604 | return -EINVAL; | |
605 | *p_pool_index = val; | |
606 | return 0; | |
607 | } | |
608 | ||
609 | static int devlink_sb_pool_index_get_from_info(struct devlink_sb *devlink_sb, | |
610 | struct genl_info *info, | |
611 | u16 *p_pool_index) | |
612 | { | |
613 | return devlink_sb_pool_index_get_from_attrs(devlink_sb, info->attrs, | |
614 | p_pool_index); | |
615 | } | |
616 | ||
617 | static int | |
618 | devlink_sb_pool_type_get_from_attrs(struct nlattr **attrs, | |
619 | enum devlink_sb_pool_type *p_pool_type) | |
620 | { | |
621 | u8 val; | |
622 | ||
623 | if (!attrs[DEVLINK_ATTR_SB_POOL_TYPE]) | |
624 | return -EINVAL; | |
625 | ||
626 | val = nla_get_u8(attrs[DEVLINK_ATTR_SB_POOL_TYPE]); | |
627 | if (val != DEVLINK_SB_POOL_TYPE_INGRESS && | |
628 | val != DEVLINK_SB_POOL_TYPE_EGRESS) | |
629 | return -EINVAL; | |
630 | *p_pool_type = val; | |
631 | return 0; | |
632 | } | |
633 | ||
634 | static int | |
635 | devlink_sb_pool_type_get_from_info(struct genl_info *info, | |
636 | enum devlink_sb_pool_type *p_pool_type) | |
637 | { | |
638 | return devlink_sb_pool_type_get_from_attrs(info->attrs, p_pool_type); | |
639 | } | |
640 | ||
641 | static int | |
642 | devlink_sb_th_type_get_from_attrs(struct nlattr **attrs, | |
643 | enum devlink_sb_threshold_type *p_th_type) | |
644 | { | |
645 | u8 val; | |
646 | ||
647 | if (!attrs[DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE]) | |
648 | return -EINVAL; | |
649 | ||
650 | val = nla_get_u8(attrs[DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE]); | |
651 | if (val != DEVLINK_SB_THRESHOLD_TYPE_STATIC && | |
652 | val != DEVLINK_SB_THRESHOLD_TYPE_DYNAMIC) | |
653 | return -EINVAL; | |
654 | *p_th_type = val; | |
655 | return 0; | |
656 | } | |
657 | ||
658 | static int | |
659 | devlink_sb_th_type_get_from_info(struct genl_info *info, | |
660 | enum devlink_sb_threshold_type *p_th_type) | |
661 | { | |
662 | return devlink_sb_th_type_get_from_attrs(info->attrs, p_th_type); | |
663 | } | |
664 | ||
665 | static int | |
666 | devlink_sb_tc_index_get_from_attrs(struct devlink_sb *devlink_sb, | |
667 | struct nlattr **attrs, | |
668 | enum devlink_sb_pool_type pool_type, | |
669 | u16 *p_tc_index) | |
670 | { | |
671 | u16 val; | |
672 | ||
673 | if (!attrs[DEVLINK_ATTR_SB_TC_INDEX]) | |
674 | return -EINVAL; | |
675 | ||
676 | val = nla_get_u16(attrs[DEVLINK_ATTR_SB_TC_INDEX]); | |
677 | if (pool_type == DEVLINK_SB_POOL_TYPE_INGRESS && | |
678 | val >= devlink_sb->ingress_tc_count) | |
679 | return -EINVAL; | |
680 | if (pool_type == DEVLINK_SB_POOL_TYPE_EGRESS && | |
681 | val >= devlink_sb->egress_tc_count) | |
682 | return -EINVAL; | |
683 | *p_tc_index = val; | |
684 | return 0; | |
685 | } | |
686 | ||
687 | static int | |
688 | devlink_sb_tc_index_get_from_info(struct devlink_sb *devlink_sb, | |
689 | struct genl_info *info, | |
690 | enum devlink_sb_pool_type pool_type, | |
691 | u16 *p_tc_index) | |
692 | { | |
693 | return devlink_sb_tc_index_get_from_attrs(devlink_sb, info->attrs, | |
694 | pool_type, p_tc_index); | |
695 | } | |
696 | ||
b16ebe92 AV |
697 | struct devlink_region { |
698 | struct devlink *devlink; | |
544e7c33 | 699 | struct devlink_port *port; |
b16ebe92 | 700 | struct list_head list; |
544e7c33 AL |
701 | union { |
702 | const struct devlink_region_ops *ops; | |
703 | const struct devlink_port_region_ops *port_ops; | |
704 | }; | |
2dec18ad JP |
705 | struct mutex snapshot_lock; /* protects snapshot_list, |
706 | * max_snapshots and cur_snapshots | |
707 | * consistency. | |
708 | */ | |
b16ebe92 AV |
709 | struct list_head snapshot_list; |
710 | u32 max_snapshots; | |
711 | u32 cur_snapshots; | |
712 | u64 size; | |
713 | }; | |
714 | ||
d7e52722 AV |
715 | struct devlink_snapshot { |
716 | struct list_head list; | |
717 | struct devlink_region *region; | |
d7e52722 AV |
718 | u8 *data; |
719 | u32 id; | |
720 | }; | |
721 | ||
b16ebe92 AV |
722 | static struct devlink_region * |
723 | devlink_region_get_by_name(struct devlink *devlink, const char *region_name) | |
724 | { | |
725 | struct devlink_region *region; | |
726 | ||
727 | list_for_each_entry(region, &devlink->region_list, list) | |
e8937681 | 728 | if (!strcmp(region->ops->name, region_name)) |
b16ebe92 AV |
729 | return region; |
730 | ||
731 | return NULL; | |
732 | } | |
733 | ||
544e7c33 AL |
734 | static struct devlink_region * |
735 | devlink_port_region_get_by_name(struct devlink_port *port, | |
736 | const char *region_name) | |
737 | { | |
738 | struct devlink_region *region; | |
739 | ||
740 | list_for_each_entry(region, &port->region_list, list) | |
741 | if (!strcmp(region->ops->name, region_name)) | |
742 | return region; | |
743 | ||
744 | return NULL; | |
745 | } | |
746 | ||
d7e52722 AV |
747 | static struct devlink_snapshot * |
748 | devlink_region_snapshot_get_by_id(struct devlink_region *region, u32 id) | |
749 | { | |
750 | struct devlink_snapshot *snapshot; | |
751 | ||
752 | list_for_each_entry(snapshot, ®ion->snapshot_list, list) | |
753 | if (snapshot->id == id) | |
754 | return snapshot; | |
755 | ||
756 | return NULL; | |
757 | } | |
758 | ||
637989b5 PP |
759 | #define DEVLINK_NL_FLAG_NEED_PORT BIT(0) |
760 | #define DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT BIT(1) | |
4677efc4 | 761 | #define DEVLINK_NL_FLAG_NEED_RATE BIT(2) |
a8ecb93e | 762 | #define DEVLINK_NL_FLAG_NEED_RATE_NODE BIT(3) |
c246f9b5 | 763 | #define DEVLINK_NL_FLAG_NEED_LINECARD BIT(4) |
2406e7e5 | 764 | |
bfcd3a46 JP |
765 | static int devlink_nl_pre_doit(const struct genl_ops *ops, |
766 | struct sk_buff *skb, struct genl_info *info) | |
767 | { | |
c246f9b5 | 768 | struct devlink_linecard *linecard; |
f4f54166 | 769 | struct devlink_port *devlink_port; |
bfcd3a46 | 770 | struct devlink *devlink; |
2406e7e5 | 771 | int err; |
bfcd3a46 | 772 | |
437ebfd9 | 773 | devlink = devlink_get_from_attrs(genl_info_net(info), info->attrs); |
d3efc2a6 | 774 | if (IS_ERR(devlink)) |
bfcd3a46 | 775 | return PTR_ERR(devlink); |
644a66c6 | 776 | devl_lock(devlink); |
637989b5 PP |
777 | info->user_ptr[0] = devlink; |
778 | if (ops->internal_flags & DEVLINK_NL_FLAG_NEED_PORT) { | |
bfcd3a46 JP |
779 | devlink_port = devlink_port_get_from_info(devlink, info); |
780 | if (IS_ERR(devlink_port)) { | |
2406e7e5 AS |
781 | err = PTR_ERR(devlink_port); |
782 | goto unlock; | |
bfcd3a46 | 783 | } |
637989b5 | 784 | info->user_ptr[1] = devlink_port; |
f4f54166 | 785 | } else if (ops->internal_flags & DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT) { |
f4f54166 VT |
786 | devlink_port = devlink_port_get_from_info(devlink, info); |
787 | if (!IS_ERR(devlink_port)) | |
788 | info->user_ptr[1] = devlink_port; | |
4677efc4 DL |
789 | } else if (ops->internal_flags & DEVLINK_NL_FLAG_NEED_RATE) { |
790 | struct devlink_rate *devlink_rate; | |
791 | ||
a8ecb93e | 792 | devlink_rate = devlink_rate_get_from_info(devlink, info); |
4677efc4 DL |
793 | if (IS_ERR(devlink_rate)) { |
794 | err = PTR_ERR(devlink_rate); | |
795 | goto unlock; | |
796 | } | |
797 | info->user_ptr[1] = devlink_rate; | |
a8ecb93e DL |
798 | } else if (ops->internal_flags & DEVLINK_NL_FLAG_NEED_RATE_NODE) { |
799 | struct devlink_rate *rate_node; | |
800 | ||
801 | rate_node = devlink_rate_node_get_from_info(devlink, info); | |
802 | if (IS_ERR(rate_node)) { | |
803 | err = PTR_ERR(rate_node); | |
804 | goto unlock; | |
805 | } | |
806 | info->user_ptr[1] = rate_node; | |
c246f9b5 JP |
807 | } else if (ops->internal_flags & DEVLINK_NL_FLAG_NEED_LINECARD) { |
808 | linecard = devlink_linecard_get_from_info(devlink, info); | |
809 | if (IS_ERR(linecard)) { | |
810 | err = PTR_ERR(linecard); | |
811 | goto unlock; | |
812 | } | |
813 | info->user_ptr[1] = linecard; | |
bfcd3a46 JP |
814 | } |
815 | return 0; | |
2406e7e5 AS |
816 | |
817 | unlock: | |
644a66c6 | 818 | devl_unlock(devlink); |
437ebfd9 | 819 | devlink_put(devlink); |
2406e7e5 | 820 | return err; |
bfcd3a46 JP |
821 | } |
822 | ||
823 | static void devlink_nl_post_doit(const struct genl_ops *ops, | |
824 | struct sk_buff *skb, struct genl_info *info) | |
825 | { | |
c246f9b5 | 826 | struct devlink_linecard *linecard; |
2406e7e5 AS |
827 | struct devlink *devlink; |
828 | ||
637989b5 | 829 | devlink = info->user_ptr[0]; |
c246f9b5 JP |
830 | if (ops->internal_flags & DEVLINK_NL_FLAG_NEED_LINECARD) { |
831 | linecard = info->user_ptr[1]; | |
832 | devlink_linecard_put(linecard); | |
833 | } | |
644a66c6 | 834 | devl_unlock(devlink); |
437ebfd9 | 835 | devlink_put(devlink); |
bfcd3a46 JP |
836 | } |
837 | ||
489111e5 | 838 | static struct genl_family devlink_nl_family; |
bfcd3a46 JP |
839 | |
840 | enum devlink_multicast_groups { | |
841 | DEVLINK_MCGRP_CONFIG, | |
842 | }; | |
843 | ||
844 | static const struct genl_multicast_group devlink_nl_mcgrps[] = { | |
845 | [DEVLINK_MCGRP_CONFIG] = { .name = DEVLINK_GENL_MCGRP_CONFIG_NAME }, | |
846 | }; | |
847 | ||
848 | static int devlink_nl_put_handle(struct sk_buff *msg, struct devlink *devlink) | |
849 | { | |
850 | if (nla_put_string(msg, DEVLINK_ATTR_BUS_NAME, devlink->dev->bus->name)) | |
851 | return -EMSGSIZE; | |
852 | if (nla_put_string(msg, DEVLINK_ATTR_DEV_NAME, dev_name(devlink->dev))) | |
853 | return -EMSGSIZE; | |
854 | return 0; | |
855 | } | |
856 | ||
7b2d9a1a JP |
857 | static int devlink_nl_put_nested_handle(struct sk_buff *msg, struct devlink *devlink) |
858 | { | |
859 | struct nlattr *nested_attr; | |
860 | ||
861 | nested_attr = nla_nest_start(msg, DEVLINK_ATTR_NESTED_DEVLINK); | |
862 | if (!nested_attr) | |
863 | return -EMSGSIZE; | |
864 | if (devlink_nl_put_handle(msg, devlink)) | |
865 | goto nla_put_failure; | |
866 | ||
867 | nla_nest_end(msg, nested_attr); | |
868 | return 0; | |
869 | ||
870 | nla_put_failure: | |
871 | nla_nest_cancel(msg, nested_attr); | |
872 | return -EMSGSIZE; | |
873 | } | |
874 | ||
dc64cc7c MS |
875 | struct devlink_reload_combination { |
876 | enum devlink_reload_action action; | |
877 | enum devlink_reload_limit limit; | |
878 | }; | |
879 | ||
880 | static const struct devlink_reload_combination devlink_reload_invalid_combinations[] = { | |
881 | { | |
882 | /* can't reinitialize driver with no down time */ | |
883 | .action = DEVLINK_RELOAD_ACTION_DRIVER_REINIT, | |
884 | .limit = DEVLINK_RELOAD_LIMIT_NO_RESET, | |
885 | }, | |
886 | }; | |
887 | ||
888 | static bool | |
889 | devlink_reload_combination_is_invalid(enum devlink_reload_action action, | |
890 | enum devlink_reload_limit limit) | |
891 | { | |
892 | int i; | |
893 | ||
894 | for (i = 0; i < ARRAY_SIZE(devlink_reload_invalid_combinations); i++) | |
895 | if (devlink_reload_invalid_combinations[i].action == action && | |
896 | devlink_reload_invalid_combinations[i].limit == limit) | |
897 | return true; | |
898 | return false; | |
899 | } | |
900 | ||
ccdf0721 MS |
901 | static bool |
902 | devlink_reload_action_is_supported(struct devlink *devlink, enum devlink_reload_action action) | |
903 | { | |
904 | return test_bit(action, &devlink->ops->reload_actions); | |
905 | } | |
906 | ||
dc64cc7c MS |
907 | static bool |
908 | devlink_reload_limit_is_supported(struct devlink *devlink, enum devlink_reload_limit limit) | |
909 | { | |
910 | return test_bit(limit, &devlink->ops->reload_limits); | |
911 | } | |
912 | ||
5204bb68 | 913 | static int devlink_reload_stat_put(struct sk_buff *msg, |
a254c264 MS |
914 | enum devlink_reload_limit limit, u32 value) |
915 | { | |
916 | struct nlattr *reload_stats_entry; | |
917 | ||
918 | reload_stats_entry = nla_nest_start(msg, DEVLINK_ATTR_RELOAD_STATS_ENTRY); | |
919 | if (!reload_stats_entry) | |
920 | return -EMSGSIZE; | |
921 | ||
5204bb68 | 922 | if (nla_put_u8(msg, DEVLINK_ATTR_RELOAD_STATS_LIMIT, limit) || |
a254c264 MS |
923 | nla_put_u32(msg, DEVLINK_ATTR_RELOAD_STATS_VALUE, value)) |
924 | goto nla_put_failure; | |
925 | nla_nest_end(msg, reload_stats_entry); | |
926 | return 0; | |
927 | ||
928 | nla_put_failure: | |
929 | nla_nest_cancel(msg, reload_stats_entry); | |
930 | return -EMSGSIZE; | |
931 | } | |
932 | ||
77069ba2 | 933 | static int devlink_reload_stats_put(struct sk_buff *msg, struct devlink *devlink, bool is_remote) |
a254c264 | 934 | { |
5204bb68 | 935 | struct nlattr *reload_stats_attr, *act_info, *act_stats; |
a254c264 MS |
936 | int i, j, stat_idx; |
937 | u32 value; | |
938 | ||
77069ba2 MS |
939 | if (!is_remote) |
940 | reload_stats_attr = nla_nest_start(msg, DEVLINK_ATTR_RELOAD_STATS); | |
941 | else | |
942 | reload_stats_attr = nla_nest_start(msg, DEVLINK_ATTR_REMOTE_RELOAD_STATS); | |
a254c264 MS |
943 | |
944 | if (!reload_stats_attr) | |
945 | return -EMSGSIZE; | |
946 | ||
5204bb68 MS |
947 | for (i = 0; i <= DEVLINK_RELOAD_ACTION_MAX; i++) { |
948 | if ((!is_remote && | |
949 | !devlink_reload_action_is_supported(devlink, i)) || | |
950 | i == DEVLINK_RELOAD_ACTION_UNSPEC) | |
a254c264 | 951 | continue; |
5204bb68 MS |
952 | act_info = nla_nest_start(msg, DEVLINK_ATTR_RELOAD_ACTION_INFO); |
953 | if (!act_info) | |
954 | goto nla_put_failure; | |
955 | ||
956 | if (nla_put_u8(msg, DEVLINK_ATTR_RELOAD_ACTION, i)) | |
957 | goto action_info_nest_cancel; | |
958 | act_stats = nla_nest_start(msg, DEVLINK_ATTR_RELOAD_ACTION_STATS); | |
959 | if (!act_stats) | |
960 | goto action_info_nest_cancel; | |
961 | ||
962 | for (j = 0; j <= DEVLINK_RELOAD_LIMIT_MAX; j++) { | |
963 | /* Remote stats are shown even if not locally supported. | |
964 | * Stats of actions with unspecified limit are shown | |
965 | * though drivers don't need to register unspecified | |
966 | * limit. | |
967 | */ | |
968 | if ((!is_remote && j != DEVLINK_RELOAD_LIMIT_UNSPEC && | |
969 | !devlink_reload_limit_is_supported(devlink, j)) || | |
a254c264 MS |
970 | devlink_reload_combination_is_invalid(i, j)) |
971 | continue; | |
972 | ||
973 | stat_idx = j * __DEVLINK_RELOAD_ACTION_MAX + i; | |
77069ba2 MS |
974 | if (!is_remote) |
975 | value = devlink->stats.reload_stats[stat_idx]; | |
976 | else | |
977 | value = devlink->stats.remote_reload_stats[stat_idx]; | |
5204bb68 MS |
978 | if (devlink_reload_stat_put(msg, j, value)) |
979 | goto action_stats_nest_cancel; | |
a254c264 | 980 | } |
5204bb68 MS |
981 | nla_nest_end(msg, act_stats); |
982 | nla_nest_end(msg, act_info); | |
a254c264 MS |
983 | } |
984 | nla_nest_end(msg, reload_stats_attr); | |
985 | return 0; | |
986 | ||
5204bb68 MS |
987 | action_stats_nest_cancel: |
988 | nla_nest_cancel(msg, act_stats); | |
989 | action_info_nest_cancel: | |
990 | nla_nest_cancel(msg, act_info); | |
a254c264 MS |
991 | nla_put_failure: |
992 | nla_nest_cancel(msg, reload_stats_attr); | |
993 | return -EMSGSIZE; | |
994 | } | |
995 | ||
bfcd3a46 JP |
996 | static int devlink_nl_fill(struct sk_buff *msg, struct devlink *devlink, |
997 | enum devlink_command cmd, u32 portid, | |
998 | u32 seq, int flags) | |
999 | { | |
a254c264 | 1000 | struct nlattr *dev_stats; |
bfcd3a46 JP |
1001 | void *hdr; |
1002 | ||
1003 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
1004 | if (!hdr) | |
1005 | return -EMSGSIZE; | |
1006 | ||
1007 | if (devlink_nl_put_handle(msg, devlink)) | |
1008 | goto nla_put_failure; | |
2670ac26 JP |
1009 | if (nla_put_u8(msg, DEVLINK_ATTR_RELOAD_FAILED, devlink->reload_failed)) |
1010 | goto nla_put_failure; | |
bfcd3a46 | 1011 | |
a254c264 MS |
1012 | dev_stats = nla_nest_start(msg, DEVLINK_ATTR_DEV_STATS); |
1013 | if (!dev_stats) | |
1014 | goto nla_put_failure; | |
1015 | ||
77069ba2 MS |
1016 | if (devlink_reload_stats_put(msg, devlink, false)) |
1017 | goto dev_stats_nest_cancel; | |
1018 | if (devlink_reload_stats_put(msg, devlink, true)) | |
a254c264 MS |
1019 | goto dev_stats_nest_cancel; |
1020 | ||
1021 | nla_nest_end(msg, dev_stats); | |
bfcd3a46 JP |
1022 | genlmsg_end(msg, hdr); |
1023 | return 0; | |
1024 | ||
a254c264 MS |
1025 | dev_stats_nest_cancel: |
1026 | nla_nest_cancel(msg, dev_stats); | |
bfcd3a46 JP |
1027 | nla_put_failure: |
1028 | genlmsg_cancel(msg, hdr); | |
1029 | return -EMSGSIZE; | |
1030 | } | |
1031 | ||
1032 | static void devlink_notify(struct devlink *devlink, enum devlink_command cmd) | |
1033 | { | |
1034 | struct sk_buff *msg; | |
1035 | int err; | |
1036 | ||
1037 | WARN_ON(cmd != DEVLINK_CMD_NEW && cmd != DEVLINK_CMD_DEL); | |
cf530217 | 1038 | WARN_ON(!xa_get_mark(&devlinks, devlink->index, DEVLINK_REGISTERED)); |
bfcd3a46 JP |
1039 | |
1040 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
1041 | if (!msg) | |
1042 | return; | |
1043 | ||
1044 | err = devlink_nl_fill(msg, devlink, cmd, 0, 0, 0); | |
1045 | if (err) { | |
1046 | nlmsg_free(msg); | |
1047 | return; | |
1048 | } | |
1049 | ||
1050 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), | |
1051 | msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
1052 | } | |
1053 | ||
b9ffcbaf JP |
1054 | static int devlink_nl_port_attrs_put(struct sk_buff *msg, |
1055 | struct devlink_port *devlink_port) | |
1056 | { | |
1057 | struct devlink_port_attrs *attrs = &devlink_port->attrs; | |
1058 | ||
10a429ba | 1059 | if (!devlink_port->attrs_set) |
b9ffcbaf | 1060 | return 0; |
a21cf0a8 DR |
1061 | if (attrs->lanes) { |
1062 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_LANES, attrs->lanes)) | |
1063 | return -EMSGSIZE; | |
1064 | } | |
a0f49b54 DR |
1065 | if (nla_put_u8(msg, DEVLINK_ATTR_PORT_SPLITTABLE, attrs->splittable)) |
1066 | return -EMSGSIZE; | |
5ec1380a JP |
1067 | if (nla_put_u16(msg, DEVLINK_ATTR_PORT_FLAVOUR, attrs->flavour)) |
1068 | return -EMSGSIZE; | |
58b6be41 PP |
1069 | switch (devlink_port->attrs.flavour) { |
1070 | case DEVLINK_PORT_FLAVOUR_PCI_PF: | |
3a2d9588 PP |
1071 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_CONTROLLER_NUMBER, |
1072 | attrs->pci_pf.controller) || | |
1073 | nla_put_u16(msg, DEVLINK_ATTR_PORT_PCI_PF_NUMBER, attrs->pci_pf.pf)) | |
98fd2d65 | 1074 | return -EMSGSIZE; |
05b595e9 PP |
1075 | if (nla_put_u8(msg, DEVLINK_ATTR_PORT_EXTERNAL, attrs->pci_pf.external)) |
1076 | return -EMSGSIZE; | |
58b6be41 PP |
1077 | break; |
1078 | case DEVLINK_PORT_FLAVOUR_PCI_VF: | |
3a2d9588 PP |
1079 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_CONTROLLER_NUMBER, |
1080 | attrs->pci_vf.controller) || | |
1081 | nla_put_u16(msg, DEVLINK_ATTR_PORT_PCI_PF_NUMBER, attrs->pci_vf.pf) || | |
1082 | nla_put_u16(msg, DEVLINK_ATTR_PORT_PCI_VF_NUMBER, attrs->pci_vf.vf)) | |
e41b6bf3 | 1083 | return -EMSGSIZE; |
05b595e9 PP |
1084 | if (nla_put_u8(msg, DEVLINK_ATTR_PORT_EXTERNAL, attrs->pci_vf.external)) |
1085 | return -EMSGSIZE; | |
58b6be41 | 1086 | break; |
b8288837 PP |
1087 | case DEVLINK_PORT_FLAVOUR_PCI_SF: |
1088 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_CONTROLLER_NUMBER, | |
1089 | attrs->pci_sf.controller) || | |
1090 | nla_put_u16(msg, DEVLINK_ATTR_PORT_PCI_PF_NUMBER, | |
1091 | attrs->pci_sf.pf) || | |
1092 | nla_put_u32(msg, DEVLINK_ATTR_PORT_PCI_SF_NUMBER, | |
1093 | attrs->pci_sf.sf)) | |
1094 | return -EMSGSIZE; | |
1095 | break; | |
58b6be41 PP |
1096 | case DEVLINK_PORT_FLAVOUR_PHYSICAL: |
1097 | case DEVLINK_PORT_FLAVOUR_CPU: | |
1098 | case DEVLINK_PORT_FLAVOUR_DSA: | |
1099 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_NUMBER, | |
1100 | attrs->phys.port_number)) | |
1101 | return -EMSGSIZE; | |
1102 | if (!attrs->split) | |
1103 | return 0; | |
1104 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_SPLIT_GROUP, | |
1105 | attrs->phys.port_number)) | |
1106 | return -EMSGSIZE; | |
1107 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_SPLIT_SUBPORT_NUMBER, | |
1108 | attrs->phys.split_subport_number)) | |
1109 | return -EMSGSIZE; | |
1110 | break; | |
1111 | default: | |
1112 | break; | |
98fd2d65 | 1113 | } |
b9ffcbaf JP |
1114 | return 0; |
1115 | } | |
1116 | ||
82564f6c LR |
1117 | static int devlink_port_fn_hw_addr_fill(const struct devlink_ops *ops, |
1118 | struct devlink_port *port, | |
1119 | struct sk_buff *msg, | |
1120 | struct netlink_ext_ack *extack, | |
1121 | bool *msg_updated) | |
1230d948 PP |
1122 | { |
1123 | u8 hw_addr[MAX_ADDR_LEN]; | |
1124 | int hw_addr_len; | |
1125 | int err; | |
1126 | ||
1127 | if (!ops->port_function_hw_addr_get) | |
1128 | return 0; | |
1129 | ||
82564f6c LR |
1130 | err = ops->port_function_hw_addr_get(port, hw_addr, &hw_addr_len, |
1131 | extack); | |
1230d948 PP |
1132 | if (err) { |
1133 | if (err == -EOPNOTSUPP) | |
1134 | return 0; | |
1135 | return err; | |
1136 | } | |
1137 | err = nla_put(msg, DEVLINK_PORT_FUNCTION_ATTR_HW_ADDR, hw_addr_len, hw_addr); | |
1138 | if (err) | |
1139 | return err; | |
1140 | *msg_updated = true; | |
1141 | return 0; | |
1142 | } | |
1143 | ||
4677efc4 | 1144 | static int devlink_nl_rate_fill(struct sk_buff *msg, |
4677efc4 | 1145 | struct devlink_rate *devlink_rate, |
7ca973dc LR |
1146 | enum devlink_command cmd, u32 portid, u32 seq, |
1147 | int flags, struct netlink_ext_ack *extack) | |
4677efc4 | 1148 | { |
7ca973dc | 1149 | struct devlink *devlink = devlink_rate->devlink; |
4677efc4 DL |
1150 | void *hdr; |
1151 | ||
1152 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
1153 | if (!hdr) | |
1154 | return -EMSGSIZE; | |
1155 | ||
1156 | if (devlink_nl_put_handle(msg, devlink)) | |
1157 | goto nla_put_failure; | |
1158 | ||
1159 | if (nla_put_u16(msg, DEVLINK_ATTR_RATE_TYPE, devlink_rate->type)) | |
1160 | goto nla_put_failure; | |
1161 | ||
1162 | if (devlink_rate_is_leaf(devlink_rate)) { | |
1163 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, | |
1164 | devlink_rate->devlink_port->index)) | |
1165 | goto nla_put_failure; | |
a8ecb93e DL |
1166 | } else if (devlink_rate_is_node(devlink_rate)) { |
1167 | if (nla_put_string(msg, DEVLINK_ATTR_RATE_NODE_NAME, | |
1168 | devlink_rate->name)) | |
1169 | goto nla_put_failure; | |
4677efc4 DL |
1170 | } |
1171 | ||
1897db2e DL |
1172 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_RATE_TX_SHARE, |
1173 | devlink_rate->tx_share, DEVLINK_ATTR_PAD)) | |
1174 | goto nla_put_failure; | |
1175 | ||
1176 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_RATE_TX_MAX, | |
1177 | devlink_rate->tx_max, DEVLINK_ATTR_PAD)) | |
1178 | goto nla_put_failure; | |
1179 | ||
d7555984 DL |
1180 | if (devlink_rate->parent) |
1181 | if (nla_put_string(msg, DEVLINK_ATTR_RATE_PARENT_NODE_NAME, | |
1182 | devlink_rate->parent->name)) | |
1183 | goto nla_put_failure; | |
1184 | ||
4677efc4 DL |
1185 | genlmsg_end(msg, hdr); |
1186 | return 0; | |
1187 | ||
1188 | nla_put_failure: | |
1189 | genlmsg_cancel(msg, hdr); | |
1190 | return -EMSGSIZE; | |
1191 | } | |
1192 | ||
a556dded PP |
1193 | static bool |
1194 | devlink_port_fn_state_valid(enum devlink_port_fn_state state) | |
1195 | { | |
1196 | return state == DEVLINK_PORT_FN_STATE_INACTIVE || | |
1197 | state == DEVLINK_PORT_FN_STATE_ACTIVE; | |
1198 | } | |
1199 | ||
1200 | static bool | |
1201 | devlink_port_fn_opstate_valid(enum devlink_port_fn_opstate opstate) | |
1202 | { | |
1203 | return opstate == DEVLINK_PORT_FN_OPSTATE_DETACHED || | |
1204 | opstate == DEVLINK_PORT_FN_OPSTATE_ATTACHED; | |
1205 | } | |
1206 | ||
82564f6c LR |
1207 | static int devlink_port_fn_state_fill(const struct devlink_ops *ops, |
1208 | struct devlink_port *port, | |
1209 | struct sk_buff *msg, | |
1210 | struct netlink_ext_ack *extack, | |
1211 | bool *msg_updated) | |
a556dded PP |
1212 | { |
1213 | enum devlink_port_fn_opstate opstate; | |
1214 | enum devlink_port_fn_state state; | |
1215 | int err; | |
1216 | ||
1217 | if (!ops->port_fn_state_get) | |
1218 | return 0; | |
1219 | ||
82564f6c | 1220 | err = ops->port_fn_state_get(port, &state, &opstate, extack); |
a556dded PP |
1221 | if (err) { |
1222 | if (err == -EOPNOTSUPP) | |
1223 | return 0; | |
1224 | return err; | |
1225 | } | |
1226 | if (!devlink_port_fn_state_valid(state)) { | |
1227 | WARN_ON_ONCE(1); | |
1228 | NL_SET_ERR_MSG_MOD(extack, "Invalid state read from driver"); | |
1229 | return -EINVAL; | |
1230 | } | |
1231 | if (!devlink_port_fn_opstate_valid(opstate)) { | |
1232 | WARN_ON_ONCE(1); | |
1233 | NL_SET_ERR_MSG_MOD(extack, | |
1234 | "Invalid operational state read from driver"); | |
1235 | return -EINVAL; | |
1236 | } | |
1237 | if (nla_put_u8(msg, DEVLINK_PORT_FN_ATTR_STATE, state) || | |
1238 | nla_put_u8(msg, DEVLINK_PORT_FN_ATTR_OPSTATE, opstate)) | |
1239 | return -EMSGSIZE; | |
1240 | *msg_updated = true; | |
1241 | return 0; | |
1242 | } | |
1243 | ||
2a916ecc PP |
1244 | static int |
1245 | devlink_nl_port_function_attrs_put(struct sk_buff *msg, struct devlink_port *port, | |
1246 | struct netlink_ext_ack *extack) | |
1247 | { | |
2a916ecc PP |
1248 | const struct devlink_ops *ops; |
1249 | struct nlattr *function_attr; | |
1230d948 PP |
1250 | bool msg_updated = false; |
1251 | int err; | |
2a916ecc PP |
1252 | |
1253 | function_attr = nla_nest_start_noflag(msg, DEVLINK_ATTR_PORT_FUNCTION); | |
1254 | if (!function_attr) | |
1255 | return -EMSGSIZE; | |
1256 | ||
82564f6c LR |
1257 | ops = port->devlink->ops; |
1258 | err = devlink_port_fn_hw_addr_fill(ops, port, msg, extack, | |
1259 | &msg_updated); | |
a556dded PP |
1260 | if (err) |
1261 | goto out; | |
82564f6c | 1262 | err = devlink_port_fn_state_fill(ops, port, msg, extack, &msg_updated); |
2a916ecc | 1263 | out: |
1230d948 | 1264 | if (err || !msg_updated) |
2a916ecc PP |
1265 | nla_nest_cancel(msg, function_attr); |
1266 | else | |
1267 | nla_nest_end(msg, function_attr); | |
1268 | return err; | |
1269 | } | |
1270 | ||
7ca973dc | 1271 | static int devlink_nl_port_fill(struct sk_buff *msg, |
bfcd3a46 | 1272 | struct devlink_port *devlink_port, |
7ca973dc LR |
1273 | enum devlink_command cmd, u32 portid, u32 seq, |
1274 | int flags, struct netlink_ext_ack *extack) | |
bfcd3a46 | 1275 | { |
7ca973dc | 1276 | struct devlink *devlink = devlink_port->devlink; |
bfcd3a46 JP |
1277 | void *hdr; |
1278 | ||
1279 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
1280 | if (!hdr) | |
1281 | return -EMSGSIZE; | |
1282 | ||
1283 | if (devlink_nl_put_handle(msg, devlink)) | |
1284 | goto nla_put_failure; | |
1285 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, devlink_port->index)) | |
1286 | goto nla_put_failure; | |
b8f97554 | 1287 | |
b187c9b4 PP |
1288 | /* Hold rtnl lock while accessing port's netdev attributes. */ |
1289 | rtnl_lock(); | |
0f420b6c | 1290 | spin_lock_bh(&devlink_port->type_lock); |
bfcd3a46 | 1291 | if (nla_put_u16(msg, DEVLINK_ATTR_PORT_TYPE, devlink_port->type)) |
b8f97554 | 1292 | goto nla_put_failure_type_locked; |
bfcd3a46 JP |
1293 | if (devlink_port->desired_type != DEVLINK_PORT_TYPE_NOTSET && |
1294 | nla_put_u16(msg, DEVLINK_ATTR_PORT_DESIRED_TYPE, | |
1295 | devlink_port->desired_type)) | |
b8f97554 | 1296 | goto nla_put_failure_type_locked; |
bfcd3a46 | 1297 | if (devlink_port->type == DEVLINK_PORT_TYPE_ETH) { |
a7b43649 | 1298 | struct net *net = devlink_net(devlink_port->devlink); |
bfcd3a46 JP |
1299 | struct net_device *netdev = devlink_port->type_dev; |
1300 | ||
a7b43649 | 1301 | if (netdev && net_eq(net, dev_net(netdev)) && |
bfcd3a46 JP |
1302 | (nla_put_u32(msg, DEVLINK_ATTR_PORT_NETDEV_IFINDEX, |
1303 | netdev->ifindex) || | |
1304 | nla_put_string(msg, DEVLINK_ATTR_PORT_NETDEV_NAME, | |
1305 | netdev->name))) | |
b8f97554 | 1306 | goto nla_put_failure_type_locked; |
bfcd3a46 JP |
1307 | } |
1308 | if (devlink_port->type == DEVLINK_PORT_TYPE_IB) { | |
1309 | struct ib_device *ibdev = devlink_port->type_dev; | |
1310 | ||
1311 | if (ibdev && | |
1312 | nla_put_string(msg, DEVLINK_ATTR_PORT_IBDEV_NAME, | |
1313 | ibdev->name)) | |
b8f97554 | 1314 | goto nla_put_failure_type_locked; |
bfcd3a46 | 1315 | } |
0f420b6c | 1316 | spin_unlock_bh(&devlink_port->type_lock); |
b187c9b4 | 1317 | rtnl_unlock(); |
b9ffcbaf | 1318 | if (devlink_nl_port_attrs_put(msg, devlink_port)) |
bfcd3a46 | 1319 | goto nla_put_failure; |
2a916ecc PP |
1320 | if (devlink_nl_port_function_attrs_put(msg, devlink_port, extack)) |
1321 | goto nla_put_failure; | |
b8375859 JP |
1322 | if (devlink_port->linecard && |
1323 | nla_put_u32(msg, DEVLINK_ATTR_LINECARD_INDEX, | |
1324 | devlink_port->linecard->index)) | |
1325 | goto nla_put_failure; | |
bfcd3a46 JP |
1326 | |
1327 | genlmsg_end(msg, hdr); | |
1328 | return 0; | |
1329 | ||
b8f97554 | 1330 | nla_put_failure_type_locked: |
0f420b6c | 1331 | spin_unlock_bh(&devlink_port->type_lock); |
b187c9b4 | 1332 | rtnl_unlock(); |
bfcd3a46 JP |
1333 | nla_put_failure: |
1334 | genlmsg_cancel(msg, hdr); | |
1335 | return -EMSGSIZE; | |
1336 | } | |
1337 | ||
1338 | static void devlink_port_notify(struct devlink_port *devlink_port, | |
1339 | enum devlink_command cmd) | |
1340 | { | |
cf530217 | 1341 | struct devlink *devlink = devlink_port->devlink; |
bfcd3a46 JP |
1342 | struct sk_buff *msg; |
1343 | int err; | |
1344 | ||
bfcd3a46 JP |
1345 | WARN_ON(cmd != DEVLINK_CMD_PORT_NEW && cmd != DEVLINK_CMD_PORT_DEL); |
1346 | ||
cf530217 LR |
1347 | if (!xa_get_mark(&devlinks, devlink->index, DEVLINK_REGISTERED)) |
1348 | return; | |
1349 | ||
bfcd3a46 JP |
1350 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
1351 | if (!msg) | |
1352 | return; | |
1353 | ||
7ca973dc | 1354 | err = devlink_nl_port_fill(msg, devlink_port, cmd, 0, 0, 0, NULL); |
bfcd3a46 JP |
1355 | if (err) { |
1356 | nlmsg_free(msg); | |
1357 | return; | |
1358 | } | |
1359 | ||
cf530217 LR |
1360 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), msg, |
1361 | 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
bfcd3a46 JP |
1362 | } |
1363 | ||
4677efc4 DL |
1364 | static void devlink_rate_notify(struct devlink_rate *devlink_rate, |
1365 | enum devlink_command cmd) | |
1366 | { | |
cf530217 | 1367 | struct devlink *devlink = devlink_rate->devlink; |
4677efc4 DL |
1368 | struct sk_buff *msg; |
1369 | int err; | |
1370 | ||
7ca973dc | 1371 | WARN_ON(cmd != DEVLINK_CMD_RATE_NEW && cmd != DEVLINK_CMD_RATE_DEL); |
ef91abfb LR |
1372 | |
1373 | if (!xa_get_mark(&devlinks, devlink->index, DEVLINK_REGISTERED)) | |
1374 | return; | |
4677efc4 DL |
1375 | |
1376 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
1377 | if (!msg) | |
1378 | return; | |
1379 | ||
7ca973dc | 1380 | err = devlink_nl_rate_fill(msg, devlink_rate, cmd, 0, 0, 0, NULL); |
4677efc4 DL |
1381 | if (err) { |
1382 | nlmsg_free(msg); | |
1383 | return; | |
1384 | } | |
1385 | ||
cf530217 LR |
1386 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), msg, |
1387 | 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
4677efc4 DL |
1388 | } |
1389 | ||
1390 | static int devlink_nl_cmd_rate_get_dumpit(struct sk_buff *msg, | |
1391 | struct netlink_callback *cb) | |
1392 | { | |
1393 | struct devlink_rate *devlink_rate; | |
1394 | struct devlink *devlink; | |
1395 | int start = cb->args[0]; | |
11a861d7 | 1396 | unsigned long index; |
4677efc4 DL |
1397 | int idx = 0; |
1398 | int err = 0; | |
1399 | ||
294c4f57 | 1400 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
7715023a | 1401 | devl_lock(devlink); |
4677efc4 DL |
1402 | list_for_each_entry(devlink_rate, &devlink->rate_list, list) { |
1403 | enum devlink_command cmd = DEVLINK_CMD_RATE_NEW; | |
1404 | u32 id = NETLINK_CB(cb->skb).portid; | |
1405 | ||
1406 | if (idx < start) { | |
1407 | idx++; | |
1408 | continue; | |
1409 | } | |
7ca973dc | 1410 | err = devlink_nl_rate_fill(msg, devlink_rate, cmd, id, |
4677efc4 DL |
1411 | cb->nlh->nlmsg_seq, |
1412 | NLM_F_MULTI, NULL); | |
1413 | if (err) { | |
7715023a | 1414 | devl_unlock(devlink); |
437ebfd9 | 1415 | devlink_put(devlink); |
4677efc4 DL |
1416 | goto out; |
1417 | } | |
1418 | idx++; | |
1419 | } | |
7715023a | 1420 | devl_unlock(devlink); |
437ebfd9 | 1421 | devlink_put(devlink); |
4677efc4 DL |
1422 | } |
1423 | out: | |
4677efc4 DL |
1424 | if (err != -EMSGSIZE) |
1425 | return err; | |
1426 | ||
1427 | cb->args[0] = idx; | |
1428 | return msg->len; | |
1429 | } | |
1430 | ||
1431 | static int devlink_nl_cmd_rate_get_doit(struct sk_buff *skb, | |
1432 | struct genl_info *info) | |
1433 | { | |
1434 | struct devlink_rate *devlink_rate = info->user_ptr[1]; | |
4677efc4 DL |
1435 | struct sk_buff *msg; |
1436 | int err; | |
1437 | ||
1438 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
1439 | if (!msg) | |
1440 | return -ENOMEM; | |
1441 | ||
7ca973dc | 1442 | err = devlink_nl_rate_fill(msg, devlink_rate, DEVLINK_CMD_RATE_NEW, |
4677efc4 DL |
1443 | info->snd_portid, info->snd_seq, 0, |
1444 | info->extack); | |
1445 | if (err) { | |
1446 | nlmsg_free(msg); | |
1447 | return err; | |
1448 | } | |
1449 | ||
1450 | return genlmsg_reply(msg, info); | |
1451 | } | |
1452 | ||
d7555984 DL |
1453 | static bool |
1454 | devlink_rate_is_parent_node(struct devlink_rate *devlink_rate, | |
1455 | struct devlink_rate *parent) | |
1456 | { | |
1457 | while (parent) { | |
1458 | if (parent == devlink_rate) | |
1459 | return true; | |
1460 | parent = parent->parent; | |
1461 | } | |
1462 | return false; | |
1463 | } | |
1464 | ||
bfcd3a46 JP |
1465 | static int devlink_nl_cmd_get_doit(struct sk_buff *skb, struct genl_info *info) |
1466 | { | |
1467 | struct devlink *devlink = info->user_ptr[0]; | |
1468 | struct sk_buff *msg; | |
1469 | int err; | |
1470 | ||
1471 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
1472 | if (!msg) | |
1473 | return -ENOMEM; | |
1474 | ||
1475 | err = devlink_nl_fill(msg, devlink, DEVLINK_CMD_NEW, | |
1476 | info->snd_portid, info->snd_seq, 0); | |
1477 | if (err) { | |
1478 | nlmsg_free(msg); | |
1479 | return err; | |
1480 | } | |
1481 | ||
1482 | return genlmsg_reply(msg, info); | |
1483 | } | |
1484 | ||
1485 | static int devlink_nl_cmd_get_dumpit(struct sk_buff *msg, | |
1486 | struct netlink_callback *cb) | |
1487 | { | |
1488 | struct devlink *devlink; | |
1489 | int start = cb->args[0]; | |
11a861d7 | 1490 | unsigned long index; |
bfcd3a46 JP |
1491 | int idx = 0; |
1492 | int err; | |
1493 | ||
294c4f57 | 1494 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
bfcd3a46 JP |
1495 | if (idx < start) { |
1496 | idx++; | |
437ebfd9 | 1497 | devlink_put(devlink); |
bfcd3a46 JP |
1498 | continue; |
1499 | } | |
437ebfd9 | 1500 | |
bfcd3a46 JP |
1501 | err = devlink_nl_fill(msg, devlink, DEVLINK_CMD_NEW, |
1502 | NETLINK_CB(cb->skb).portid, | |
1503 | cb->nlh->nlmsg_seq, NLM_F_MULTI); | |
437ebfd9 | 1504 | devlink_put(devlink); |
bfcd3a46 JP |
1505 | if (err) |
1506 | goto out; | |
1507 | idx++; | |
1508 | } | |
1509 | out: | |
bfcd3a46 JP |
1510 | cb->args[0] = idx; |
1511 | return msg->len; | |
1512 | } | |
1513 | ||
1514 | static int devlink_nl_cmd_port_get_doit(struct sk_buff *skb, | |
1515 | struct genl_info *info) | |
1516 | { | |
637989b5 | 1517 | struct devlink_port *devlink_port = info->user_ptr[1]; |
bfcd3a46 JP |
1518 | struct sk_buff *msg; |
1519 | int err; | |
1520 | ||
1521 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
1522 | if (!msg) | |
1523 | return -ENOMEM; | |
1524 | ||
7ca973dc | 1525 | err = devlink_nl_port_fill(msg, devlink_port, DEVLINK_CMD_PORT_NEW, |
a829eb0d PP |
1526 | info->snd_portid, info->snd_seq, 0, |
1527 | info->extack); | |
bfcd3a46 JP |
1528 | if (err) { |
1529 | nlmsg_free(msg); | |
1530 | return err; | |
1531 | } | |
1532 | ||
1533 | return genlmsg_reply(msg, info); | |
1534 | } | |
1535 | ||
1536 | static int devlink_nl_cmd_port_get_dumpit(struct sk_buff *msg, | |
1537 | struct netlink_callback *cb) | |
1538 | { | |
1539 | struct devlink *devlink; | |
1540 | struct devlink_port *devlink_port; | |
1541 | int start = cb->args[0]; | |
11a861d7 | 1542 | unsigned long index; |
bfcd3a46 JP |
1543 | int idx = 0; |
1544 | int err; | |
1545 | ||
294c4f57 | 1546 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
7715023a | 1547 | devl_lock(devlink); |
bfcd3a46 JP |
1548 | list_for_each_entry(devlink_port, &devlink->port_list, list) { |
1549 | if (idx < start) { | |
1550 | idx++; | |
1551 | continue; | |
1552 | } | |
7ca973dc | 1553 | err = devlink_nl_port_fill(msg, devlink_port, |
bfcd3a46 JP |
1554 | DEVLINK_CMD_NEW, |
1555 | NETLINK_CB(cb->skb).portid, | |
1556 | cb->nlh->nlmsg_seq, | |
7ca973dc | 1557 | NLM_F_MULTI, cb->extack); |
2406e7e5 | 1558 | if (err) { |
7715023a | 1559 | devl_unlock(devlink); |
437ebfd9 | 1560 | devlink_put(devlink); |
bfcd3a46 | 1561 | goto out; |
2406e7e5 | 1562 | } |
bfcd3a46 JP |
1563 | idx++; |
1564 | } | |
7715023a | 1565 | devl_unlock(devlink); |
437ebfd9 | 1566 | devlink_put(devlink); |
bfcd3a46 JP |
1567 | } |
1568 | out: | |
bfcd3a46 JP |
1569 | cb->args[0] = idx; |
1570 | return msg->len; | |
1571 | } | |
1572 | ||
82564f6c | 1573 | static int devlink_port_type_set(struct devlink_port *devlink_port, |
bfcd3a46 JP |
1574 | enum devlink_port_type port_type) |
1575 | ||
1576 | { | |
1577 | int err; | |
1578 | ||
2a2b6e36 | 1579 | if (!devlink_port->devlink->ops->port_type_set) |
82564f6c LR |
1580 | return -EOPNOTSUPP; |
1581 | ||
1582 | if (port_type == devlink_port->type) | |
bfcd3a46 | 1583 | return 0; |
82564f6c LR |
1584 | |
1585 | err = devlink_port->devlink->ops->port_type_set(devlink_port, | |
1586 | port_type); | |
1587 | if (err) | |
1588 | return err; | |
1589 | ||
1590 | devlink_port->desired_type = port_type; | |
1591 | devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_NEW); | |
1592 | return 0; | |
bfcd3a46 JP |
1593 | } |
1594 | ||
82564f6c LR |
1595 | static int devlink_port_function_hw_addr_set(struct devlink_port *port, |
1596 | const struct nlattr *attr, | |
1597 | struct netlink_ext_ack *extack) | |
a1e8ae90 | 1598 | { |
82564f6c | 1599 | const struct devlink_ops *ops = port->devlink->ops; |
a1e8ae90 PP |
1600 | const u8 *hw_addr; |
1601 | int hw_addr_len; | |
a1e8ae90 PP |
1602 | |
1603 | hw_addr = nla_data(attr); | |
1604 | hw_addr_len = nla_len(attr); | |
1605 | if (hw_addr_len > MAX_ADDR_LEN) { | |
1606 | NL_SET_ERR_MSG_MOD(extack, "Port function hardware address too long"); | |
1607 | return -EINVAL; | |
1608 | } | |
1609 | if (port->type == DEVLINK_PORT_TYPE_ETH) { | |
1610 | if (hw_addr_len != ETH_ALEN) { | |
1611 | NL_SET_ERR_MSG_MOD(extack, "Address must be 6 bytes for Ethernet device"); | |
1612 | return -EINVAL; | |
1613 | } | |
1614 | if (!is_unicast_ether_addr(hw_addr)) { | |
1615 | NL_SET_ERR_MSG_MOD(extack, "Non-unicast hardware address unsupported"); | |
1616 | return -EINVAL; | |
1617 | } | |
1618 | } | |
1619 | ||
a1e8ae90 PP |
1620 | if (!ops->port_function_hw_addr_set) { |
1621 | NL_SET_ERR_MSG_MOD(extack, "Port doesn't support function attributes"); | |
1622 | return -EOPNOTSUPP; | |
1623 | } | |
1624 | ||
82564f6c LR |
1625 | return ops->port_function_hw_addr_set(port, hw_addr, hw_addr_len, |
1626 | extack); | |
a1e8ae90 | 1627 | } |
a1e8ae90 | 1628 | |
82564f6c | 1629 | static int devlink_port_fn_state_set(struct devlink_port *port, |
a556dded PP |
1630 | const struct nlattr *attr, |
1631 | struct netlink_ext_ack *extack) | |
1632 | { | |
1633 | enum devlink_port_fn_state state; | |
1634 | const struct devlink_ops *ops; | |
1635 | ||
1636 | state = nla_get_u8(attr); | |
82564f6c | 1637 | ops = port->devlink->ops; |
a556dded PP |
1638 | if (!ops->port_fn_state_set) { |
1639 | NL_SET_ERR_MSG_MOD(extack, | |
1640 | "Function does not support state setting"); | |
1641 | return -EOPNOTSUPP; | |
1642 | } | |
82564f6c | 1643 | return ops->port_fn_state_set(port, state, extack); |
a1e8ae90 PP |
1644 | } |
1645 | ||
82564f6c LR |
1646 | static int devlink_port_function_set(struct devlink_port *port, |
1647 | const struct nlattr *attr, | |
1648 | struct netlink_ext_ack *extack) | |
a1e8ae90 PP |
1649 | { |
1650 | struct nlattr *tb[DEVLINK_PORT_FUNCTION_ATTR_MAX + 1]; | |
1651 | int err; | |
1652 | ||
1653 | err = nla_parse_nested(tb, DEVLINK_PORT_FUNCTION_ATTR_MAX, attr, | |
1654 | devlink_function_nl_policy, extack); | |
1655 | if (err < 0) { | |
1656 | NL_SET_ERR_MSG_MOD(extack, "Fail to parse port function attributes"); | |
1657 | return err; | |
1658 | } | |
1659 | ||
1660 | attr = tb[DEVLINK_PORT_FUNCTION_ATTR_HW_ADDR]; | |
a556dded | 1661 | if (attr) { |
82564f6c | 1662 | err = devlink_port_function_hw_addr_set(port, attr, extack); |
a556dded PP |
1663 | if (err) |
1664 | return err; | |
1665 | } | |
1666 | /* Keep this as the last function attribute set, so that when | |
1667 | * multiple port function attributes are set along with state, | |
1668 | * Those can be applied first before activating the state. | |
1669 | */ | |
1670 | attr = tb[DEVLINK_PORT_FN_ATTR_STATE]; | |
1671 | if (attr) | |
82564f6c | 1672 | err = devlink_port_fn_state_set(port, attr, extack); |
a1e8ae90 | 1673 | |
1230d948 PP |
1674 | if (!err) |
1675 | devlink_port_notify(port, DEVLINK_CMD_PORT_NEW); | |
a1e8ae90 PP |
1676 | return err; |
1677 | } | |
1678 | ||
bfcd3a46 JP |
1679 | static int devlink_nl_cmd_port_set_doit(struct sk_buff *skb, |
1680 | struct genl_info *info) | |
1681 | { | |
637989b5 | 1682 | struct devlink_port *devlink_port = info->user_ptr[1]; |
bfcd3a46 JP |
1683 | int err; |
1684 | ||
1685 | if (info->attrs[DEVLINK_ATTR_PORT_TYPE]) { | |
1686 | enum devlink_port_type port_type; | |
1687 | ||
1688 | port_type = nla_get_u16(info->attrs[DEVLINK_ATTR_PORT_TYPE]); | |
82564f6c | 1689 | err = devlink_port_type_set(devlink_port, port_type); |
bfcd3a46 JP |
1690 | if (err) |
1691 | return err; | |
1692 | } | |
a1e8ae90 PP |
1693 | |
1694 | if (info->attrs[DEVLINK_ATTR_PORT_FUNCTION]) { | |
1695 | struct nlattr *attr = info->attrs[DEVLINK_ATTR_PORT_FUNCTION]; | |
1696 | struct netlink_ext_ack *extack = info->extack; | |
1697 | ||
82564f6c | 1698 | err = devlink_port_function_set(devlink_port, attr, extack); |
a1e8ae90 PP |
1699 | if (err) |
1700 | return err; | |
1701 | } | |
1702 | ||
bfcd3a46 JP |
1703 | return 0; |
1704 | } | |
1705 | ||
bfcd3a46 JP |
1706 | static int devlink_nl_cmd_port_split_doit(struct sk_buff *skb, |
1707 | struct genl_info *info) | |
1708 | { | |
706217c1 | 1709 | struct devlink_port *devlink_port = info->user_ptr[1]; |
bfcd3a46 | 1710 | struct devlink *devlink = info->user_ptr[0]; |
bfcd3a46 JP |
1711 | u32 count; |
1712 | ||
706217c1 | 1713 | if (!info->attrs[DEVLINK_ATTR_PORT_SPLIT_COUNT]) |
bfcd3a46 | 1714 | return -EINVAL; |
706217c1 JK |
1715 | if (!devlink->ops->port_split) |
1716 | return -EOPNOTSUPP; | |
bfcd3a46 | 1717 | |
bfcd3a46 | 1718 | count = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_SPLIT_COUNT]); |
82901ad1 | 1719 | |
82901ad1 DR |
1720 | if (!devlink_port->attrs.splittable) { |
1721 | /* Split ports cannot be split. */ | |
1722 | if (devlink_port->attrs.split) | |
1723 | NL_SET_ERR_MSG_MOD(info->extack, "Port cannot be split further"); | |
1724 | else | |
1725 | NL_SET_ERR_MSG_MOD(info->extack, "Port cannot be split"); | |
1726 | return -EINVAL; | |
1727 | } | |
1728 | ||
1729 | if (count < 2 || !is_power_of_2(count) || count > devlink_port->attrs.lanes) { | |
1730 | NL_SET_ERR_MSG_MOD(info->extack, "Invalid split count"); | |
1731 | return -EINVAL; | |
1732 | } | |
1733 | ||
706217c1 JK |
1734 | return devlink->ops->port_split(devlink, devlink_port, count, |
1735 | info->extack); | |
bfcd3a46 JP |
1736 | } |
1737 | ||
1738 | static int devlink_nl_cmd_port_unsplit_doit(struct sk_buff *skb, | |
1739 | struct genl_info *info) | |
1740 | { | |
706217c1 | 1741 | struct devlink_port *devlink_port = info->user_ptr[1]; |
bfcd3a46 | 1742 | struct devlink *devlink = info->user_ptr[0]; |
bfcd3a46 | 1743 | |
706217c1 JK |
1744 | if (!devlink->ops->port_unsplit) |
1745 | return -EOPNOTSUPP; | |
1746 | return devlink->ops->port_unsplit(devlink, devlink_port, info->extack); | |
bfcd3a46 JP |
1747 | } |
1748 | ||
ced92571 JP |
1749 | static int devlink_port_new_notify(struct devlink *devlink, |
1750 | unsigned int port_index, | |
1751 | struct genl_info *info) | |
cd76dcd6 PP |
1752 | { |
1753 | struct devlink_port *devlink_port; | |
1754 | struct sk_buff *msg; | |
1755 | int err; | |
1756 | ||
1757 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
1758 | if (!msg) | |
1759 | return -ENOMEM; | |
1760 | ||
f0680ef0 | 1761 | lockdep_assert_held(&devlink->lock); |
cd76dcd6 PP |
1762 | devlink_port = devlink_port_get_by_index(devlink, port_index); |
1763 | if (!devlink_port) { | |
1764 | err = -ENODEV; | |
1765 | goto out; | |
1766 | } | |
1767 | ||
7ca973dc LR |
1768 | err = devlink_nl_port_fill(msg, devlink_port, DEVLINK_CMD_NEW, |
1769 | info->snd_portid, info->snd_seq, 0, NULL); | |
cd76dcd6 PP |
1770 | if (err) |
1771 | goto out; | |
1772 | ||
a44c4511 | 1773 | return genlmsg_reply(msg, info); |
cd76dcd6 PP |
1774 | |
1775 | out: | |
cd76dcd6 PP |
1776 | nlmsg_free(msg); |
1777 | return err; | |
1778 | } | |
1779 | ||
1780 | static int devlink_nl_cmd_port_new_doit(struct sk_buff *skb, | |
1781 | struct genl_info *info) | |
1782 | { | |
1783 | struct netlink_ext_ack *extack = info->extack; | |
1784 | struct devlink_port_new_attrs new_attrs = {}; | |
1785 | struct devlink *devlink = info->user_ptr[0]; | |
1786 | unsigned int new_port_index; | |
1787 | int err; | |
1788 | ||
1789 | if (!devlink->ops->port_new || !devlink->ops->port_del) | |
1790 | return -EOPNOTSUPP; | |
1791 | ||
1792 | if (!info->attrs[DEVLINK_ATTR_PORT_FLAVOUR] || | |
1793 | !info->attrs[DEVLINK_ATTR_PORT_PCI_PF_NUMBER]) { | |
1794 | NL_SET_ERR_MSG_MOD(extack, "Port flavour or PCI PF are not specified"); | |
1795 | return -EINVAL; | |
1796 | } | |
1797 | new_attrs.flavour = nla_get_u16(info->attrs[DEVLINK_ATTR_PORT_FLAVOUR]); | |
1798 | new_attrs.pfnum = | |
1799 | nla_get_u16(info->attrs[DEVLINK_ATTR_PORT_PCI_PF_NUMBER]); | |
1800 | ||
1801 | if (info->attrs[DEVLINK_ATTR_PORT_INDEX]) { | |
1802 | /* Port index of the new port being created by driver. */ | |
1803 | new_attrs.port_index = | |
1804 | nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_INDEX]); | |
1805 | new_attrs.port_index_valid = true; | |
1806 | } | |
1807 | if (info->attrs[DEVLINK_ATTR_PORT_CONTROLLER_NUMBER]) { | |
1808 | new_attrs.controller = | |
1809 | nla_get_u16(info->attrs[DEVLINK_ATTR_PORT_CONTROLLER_NUMBER]); | |
1810 | new_attrs.controller_valid = true; | |
1811 | } | |
1812 | if (new_attrs.flavour == DEVLINK_PORT_FLAVOUR_PCI_SF && | |
1813 | info->attrs[DEVLINK_ATTR_PORT_PCI_SF_NUMBER]) { | |
1814 | new_attrs.sfnum = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_PCI_SF_NUMBER]); | |
1815 | new_attrs.sfnum_valid = true; | |
1816 | } | |
1817 | ||
1818 | err = devlink->ops->port_new(devlink, &new_attrs, extack, | |
1819 | &new_port_index); | |
1820 | if (err) | |
1821 | return err; | |
1822 | ||
ced92571 | 1823 | err = devlink_port_new_notify(devlink, new_port_index, info); |
cd76dcd6 PP |
1824 | if (err && err != -ENODEV) { |
1825 | /* Fail to send the response; destroy newly created port. */ | |
1826 | devlink->ops->port_del(devlink, new_port_index, extack); | |
1827 | } | |
1828 | return err; | |
1829 | } | |
1830 | ||
1831 | static int devlink_nl_cmd_port_del_doit(struct sk_buff *skb, | |
1832 | struct genl_info *info) | |
1833 | { | |
1834 | struct netlink_ext_ack *extack = info->extack; | |
1835 | struct devlink *devlink = info->user_ptr[0]; | |
1836 | unsigned int port_index; | |
1837 | ||
1838 | if (!devlink->ops->port_del) | |
1839 | return -EOPNOTSUPP; | |
1840 | ||
1841 | if (!info->attrs[DEVLINK_ATTR_PORT_INDEX]) { | |
1842 | NL_SET_ERR_MSG_MOD(extack, "Port index is not specified"); | |
1843 | return -EINVAL; | |
1844 | } | |
1845 | port_index = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_INDEX]); | |
1846 | ||
1847 | return devlink->ops->port_del(devlink, port_index, extack); | |
1848 | } | |
1849 | ||
d7555984 DL |
1850 | static int |
1851 | devlink_nl_rate_parent_node_set(struct devlink_rate *devlink_rate, | |
1852 | struct genl_info *info, | |
1853 | struct nlattr *nla_parent) | |
1854 | { | |
1855 | struct devlink *devlink = devlink_rate->devlink; | |
1856 | const char *parent_name = nla_data(nla_parent); | |
1857 | const struct devlink_ops *ops = devlink->ops; | |
1858 | size_t len = strlen(parent_name); | |
1859 | struct devlink_rate *parent; | |
1860 | int err = -EOPNOTSUPP; | |
1861 | ||
1862 | parent = devlink_rate->parent; | |
1863 | if (parent && len) { | |
1864 | NL_SET_ERR_MSG_MOD(info->extack, "Rate object already has parent."); | |
1865 | return -EBUSY; | |
1866 | } else if (parent && !len) { | |
1867 | if (devlink_rate_is_leaf(devlink_rate)) | |
1868 | err = ops->rate_leaf_parent_set(devlink_rate, NULL, | |
1869 | devlink_rate->priv, NULL, | |
1870 | info->extack); | |
1871 | else if (devlink_rate_is_node(devlink_rate)) | |
1872 | err = ops->rate_node_parent_set(devlink_rate, NULL, | |
1873 | devlink_rate->priv, NULL, | |
1874 | info->extack); | |
1875 | if (err) | |
1876 | return err; | |
1877 | ||
1878 | refcount_dec(&parent->refcnt); | |
1879 | devlink_rate->parent = NULL; | |
1880 | } else if (!parent && len) { | |
1881 | parent = devlink_rate_node_get_by_name(devlink, parent_name); | |
1882 | if (IS_ERR(parent)) | |
1883 | return -ENODEV; | |
1884 | ||
1885 | if (parent == devlink_rate) { | |
1886 | NL_SET_ERR_MSG_MOD(info->extack, "Parent to self is not allowed"); | |
1887 | return -EINVAL; | |
1888 | } | |
1889 | ||
1890 | if (devlink_rate_is_node(devlink_rate) && | |
1891 | devlink_rate_is_parent_node(devlink_rate, parent->parent)) { | |
1892 | NL_SET_ERR_MSG_MOD(info->extack, "Node is already a parent of parent node."); | |
1893 | return -EEXIST; | |
1894 | } | |
1895 | ||
1896 | if (devlink_rate_is_leaf(devlink_rate)) | |
1897 | err = ops->rate_leaf_parent_set(devlink_rate, parent, | |
1898 | devlink_rate->priv, parent->priv, | |
1899 | info->extack); | |
1900 | else if (devlink_rate_is_node(devlink_rate)) | |
1901 | err = ops->rate_node_parent_set(devlink_rate, parent, | |
1902 | devlink_rate->priv, parent->priv, | |
1903 | info->extack); | |
1904 | if (err) | |
1905 | return err; | |
1906 | ||
1907 | refcount_inc(&parent->refcnt); | |
1908 | devlink_rate->parent = parent; | |
1909 | } | |
1910 | ||
1911 | return 0; | |
1912 | } | |
1913 | ||
1897db2e DL |
1914 | static int devlink_nl_rate_set(struct devlink_rate *devlink_rate, |
1915 | const struct devlink_ops *ops, | |
1916 | struct genl_info *info) | |
1917 | { | |
d7555984 | 1918 | struct nlattr *nla_parent, **attrs = info->attrs; |
a8ecb93e | 1919 | int err = -EOPNOTSUPP; |
1897db2e | 1920 | u64 rate; |
1897db2e DL |
1921 | |
1922 | if (attrs[DEVLINK_ATTR_RATE_TX_SHARE]) { | |
1923 | rate = nla_get_u64(attrs[DEVLINK_ATTR_RATE_TX_SHARE]); | |
a8ecb93e DL |
1924 | if (devlink_rate_is_leaf(devlink_rate)) |
1925 | err = ops->rate_leaf_tx_share_set(devlink_rate, devlink_rate->priv, | |
1926 | rate, info->extack); | |
1927 | else if (devlink_rate_is_node(devlink_rate)) | |
1928 | err = ops->rate_node_tx_share_set(devlink_rate, devlink_rate->priv, | |
1929 | rate, info->extack); | |
1897db2e DL |
1930 | if (err) |
1931 | return err; | |
1932 | devlink_rate->tx_share = rate; | |
1933 | } | |
1934 | ||
1935 | if (attrs[DEVLINK_ATTR_RATE_TX_MAX]) { | |
1936 | rate = nla_get_u64(attrs[DEVLINK_ATTR_RATE_TX_MAX]); | |
a8ecb93e DL |
1937 | if (devlink_rate_is_leaf(devlink_rate)) |
1938 | err = ops->rate_leaf_tx_max_set(devlink_rate, devlink_rate->priv, | |
1939 | rate, info->extack); | |
1940 | else if (devlink_rate_is_node(devlink_rate)) | |
1941 | err = ops->rate_node_tx_max_set(devlink_rate, devlink_rate->priv, | |
1942 | rate, info->extack); | |
1897db2e DL |
1943 | if (err) |
1944 | return err; | |
1945 | devlink_rate->tx_max = rate; | |
1946 | } | |
1947 | ||
d7555984 DL |
1948 | nla_parent = attrs[DEVLINK_ATTR_RATE_PARENT_NODE_NAME]; |
1949 | if (nla_parent) { | |
1950 | err = devlink_nl_rate_parent_node_set(devlink_rate, info, | |
1951 | nla_parent); | |
1952 | if (err) | |
1953 | return err; | |
1954 | } | |
1955 | ||
1897db2e DL |
1956 | return 0; |
1957 | } | |
1958 | ||
1959 | static bool devlink_rate_set_ops_supported(const struct devlink_ops *ops, | |
1960 | struct genl_info *info, | |
1961 | enum devlink_rate_type type) | |
1962 | { | |
1963 | struct nlattr **attrs = info->attrs; | |
1964 | ||
1965 | if (type == DEVLINK_RATE_TYPE_LEAF) { | |
1966 | if (attrs[DEVLINK_ATTR_RATE_TX_SHARE] && !ops->rate_leaf_tx_share_set) { | |
1967 | NL_SET_ERR_MSG_MOD(info->extack, "TX share set isn't supported for the leafs"); | |
1968 | return false; | |
1969 | } | |
1970 | if (attrs[DEVLINK_ATTR_RATE_TX_MAX] && !ops->rate_leaf_tx_max_set) { | |
1971 | NL_SET_ERR_MSG_MOD(info->extack, "TX max set isn't supported for the leafs"); | |
1972 | return false; | |
1973 | } | |
d7555984 DL |
1974 | if (attrs[DEVLINK_ATTR_RATE_PARENT_NODE_NAME] && |
1975 | !ops->rate_leaf_parent_set) { | |
1976 | NL_SET_ERR_MSG_MOD(info->extack, "Parent set isn't supported for the leafs"); | |
1977 | return false; | |
1978 | } | |
a8ecb93e DL |
1979 | } else if (type == DEVLINK_RATE_TYPE_NODE) { |
1980 | if (attrs[DEVLINK_ATTR_RATE_TX_SHARE] && !ops->rate_node_tx_share_set) { | |
1981 | NL_SET_ERR_MSG_MOD(info->extack, "TX share set isn't supported for the nodes"); | |
1982 | return false; | |
1983 | } | |
1984 | if (attrs[DEVLINK_ATTR_RATE_TX_MAX] && !ops->rate_node_tx_max_set) { | |
1985 | NL_SET_ERR_MSG_MOD(info->extack, "TX max set isn't supported for the nodes"); | |
1986 | return false; | |
1987 | } | |
d7555984 DL |
1988 | if (attrs[DEVLINK_ATTR_RATE_PARENT_NODE_NAME] && |
1989 | !ops->rate_node_parent_set) { | |
1990 | NL_SET_ERR_MSG_MOD(info->extack, "Parent set isn't supported for the nodes"); | |
1991 | return false; | |
1992 | } | |
1897db2e | 1993 | } else { |
711d1dee | 1994 | WARN(1, "Unknown type of rate object"); |
1897db2e DL |
1995 | return false; |
1996 | } | |
1997 | ||
1998 | return true; | |
1999 | } | |
2000 | ||
2001 | static int devlink_nl_cmd_rate_set_doit(struct sk_buff *skb, | |
2002 | struct genl_info *info) | |
2003 | { | |
2004 | struct devlink_rate *devlink_rate = info->user_ptr[1]; | |
2005 | struct devlink *devlink = devlink_rate->devlink; | |
2006 | const struct devlink_ops *ops = devlink->ops; | |
2007 | int err; | |
2008 | ||
2009 | if (!ops || !devlink_rate_set_ops_supported(ops, info, devlink_rate->type)) | |
2010 | return -EOPNOTSUPP; | |
2011 | ||
2012 | err = devlink_nl_rate_set(devlink_rate, ops, info); | |
2013 | ||
2014 | if (!err) | |
2015 | devlink_rate_notify(devlink_rate, DEVLINK_CMD_RATE_NEW); | |
2016 | return err; | |
2017 | } | |
2018 | ||
a8ecb93e DL |
2019 | static int devlink_nl_cmd_rate_new_doit(struct sk_buff *skb, |
2020 | struct genl_info *info) | |
2021 | { | |
2022 | struct devlink *devlink = info->user_ptr[0]; | |
2023 | struct devlink_rate *rate_node; | |
2024 | const struct devlink_ops *ops; | |
2025 | int err; | |
2026 | ||
2027 | ops = devlink->ops; | |
2028 | if (!ops || !ops->rate_node_new || !ops->rate_node_del) { | |
2029 | NL_SET_ERR_MSG_MOD(info->extack, "Rate nodes aren't supported"); | |
2030 | return -EOPNOTSUPP; | |
2031 | } | |
2032 | ||
2033 | if (!devlink_rate_set_ops_supported(ops, info, DEVLINK_RATE_TYPE_NODE)) | |
2034 | return -EOPNOTSUPP; | |
2035 | ||
2036 | rate_node = devlink_rate_node_get_from_attrs(devlink, info->attrs); | |
2037 | if (!IS_ERR(rate_node)) | |
2038 | return -EEXIST; | |
2039 | else if (rate_node == ERR_PTR(-EINVAL)) | |
2040 | return -EINVAL; | |
2041 | ||
2042 | rate_node = kzalloc(sizeof(*rate_node), GFP_KERNEL); | |
2043 | if (!rate_node) | |
2044 | return -ENOMEM; | |
2045 | ||
2046 | rate_node->devlink = devlink; | |
2047 | rate_node->type = DEVLINK_RATE_TYPE_NODE; | |
2048 | rate_node->name = nla_strdup(info->attrs[DEVLINK_ATTR_RATE_NODE_NAME], GFP_KERNEL); | |
2049 | if (!rate_node->name) { | |
2050 | err = -ENOMEM; | |
2051 | goto err_strdup; | |
2052 | } | |
2053 | ||
2054 | err = ops->rate_node_new(rate_node, &rate_node->priv, info->extack); | |
2055 | if (err) | |
2056 | goto err_node_new; | |
2057 | ||
2058 | err = devlink_nl_rate_set(rate_node, ops, info); | |
2059 | if (err) | |
2060 | goto err_rate_set; | |
2061 | ||
d7555984 | 2062 | refcount_set(&rate_node->refcnt, 1); |
a8ecb93e DL |
2063 | list_add(&rate_node->list, &devlink->rate_list); |
2064 | devlink_rate_notify(rate_node, DEVLINK_CMD_RATE_NEW); | |
2065 | return 0; | |
2066 | ||
2067 | err_rate_set: | |
2068 | ops->rate_node_del(rate_node, rate_node->priv, info->extack); | |
2069 | err_node_new: | |
2070 | kfree(rate_node->name); | |
2071 | err_strdup: | |
2072 | kfree(rate_node); | |
2073 | return err; | |
2074 | } | |
2075 | ||
2076 | static int devlink_nl_cmd_rate_del_doit(struct sk_buff *skb, | |
2077 | struct genl_info *info) | |
2078 | { | |
2079 | struct devlink_rate *rate_node = info->user_ptr[1]; | |
2080 | struct devlink *devlink = rate_node->devlink; | |
2081 | const struct devlink_ops *ops = devlink->ops; | |
2082 | int err; | |
2083 | ||
d7555984 DL |
2084 | if (refcount_read(&rate_node->refcnt) > 1) { |
2085 | NL_SET_ERR_MSG_MOD(info->extack, "Node has children. Cannot delete node."); | |
2086 | return -EBUSY; | |
2087 | } | |
2088 | ||
a8ecb93e DL |
2089 | devlink_rate_notify(rate_node, DEVLINK_CMD_RATE_DEL); |
2090 | err = ops->rate_node_del(rate_node, rate_node->priv, info->extack); | |
d7555984 DL |
2091 | if (rate_node->parent) |
2092 | refcount_dec(&rate_node->parent->refcnt); | |
a8ecb93e DL |
2093 | list_del(&rate_node->list); |
2094 | kfree(rate_node->name); | |
2095 | kfree(rate_node); | |
2096 | return err; | |
2097 | } | |
2098 | ||
fcdc8ce2 JP |
2099 | struct devlink_linecard_type { |
2100 | const char *type; | |
2101 | const void *priv; | |
2102 | }; | |
2103 | ||
c246f9b5 JP |
2104 | static int devlink_nl_linecard_fill(struct sk_buff *msg, |
2105 | struct devlink *devlink, | |
2106 | struct devlink_linecard *linecard, | |
2107 | enum devlink_command cmd, u32 portid, | |
2108 | u32 seq, int flags, | |
2109 | struct netlink_ext_ack *extack) | |
2110 | { | |
fcdc8ce2 JP |
2111 | struct devlink_linecard_type *linecard_type; |
2112 | struct nlattr *attr; | |
c246f9b5 | 2113 | void *hdr; |
fcdc8ce2 | 2114 | int i; |
c246f9b5 JP |
2115 | |
2116 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
2117 | if (!hdr) | |
2118 | return -EMSGSIZE; | |
2119 | ||
2120 | if (devlink_nl_put_handle(msg, devlink)) | |
2121 | goto nla_put_failure; | |
2122 | if (nla_put_u32(msg, DEVLINK_ATTR_LINECARD_INDEX, linecard->index)) | |
2123 | goto nla_put_failure; | |
fcdc8ce2 JP |
2124 | if (nla_put_u8(msg, DEVLINK_ATTR_LINECARD_STATE, linecard->state)) |
2125 | goto nla_put_failure; | |
2126 | if (linecard->type && | |
2127 | nla_put_string(msg, DEVLINK_ATTR_LINECARD_TYPE, linecard->type)) | |
2128 | goto nla_put_failure; | |
2129 | ||
2130 | if (linecard->types_count) { | |
2131 | attr = nla_nest_start(msg, | |
2132 | DEVLINK_ATTR_LINECARD_SUPPORTED_TYPES); | |
2133 | if (!attr) | |
2134 | goto nla_put_failure; | |
2135 | for (i = 0; i < linecard->types_count; i++) { | |
2136 | linecard_type = &linecard->types[i]; | |
2137 | if (nla_put_string(msg, DEVLINK_ATTR_LINECARD_TYPE, | |
2138 | linecard_type->type)) { | |
2139 | nla_nest_cancel(msg, attr); | |
2140 | goto nla_put_failure; | |
2141 | } | |
2142 | } | |
2143 | nla_nest_end(msg, attr); | |
2144 | } | |
c246f9b5 | 2145 | |
7b2d9a1a JP |
2146 | if (linecard->nested_devlink && |
2147 | devlink_nl_put_nested_handle(msg, linecard->nested_devlink)) | |
2148 | goto nla_put_failure; | |
2149 | ||
c246f9b5 JP |
2150 | genlmsg_end(msg, hdr); |
2151 | return 0; | |
2152 | ||
2153 | nla_put_failure: | |
2154 | genlmsg_cancel(msg, hdr); | |
2155 | return -EMSGSIZE; | |
2156 | } | |
2157 | ||
2158 | static void devlink_linecard_notify(struct devlink_linecard *linecard, | |
2159 | enum devlink_command cmd) | |
2160 | { | |
2161 | struct devlink *devlink = linecard->devlink; | |
2162 | struct sk_buff *msg; | |
2163 | int err; | |
2164 | ||
2165 | WARN_ON(cmd != DEVLINK_CMD_LINECARD_NEW && | |
2166 | cmd != DEVLINK_CMD_LINECARD_DEL); | |
2167 | ||
2168 | if (!xa_get_mark(&devlinks, devlink->index, DEVLINK_REGISTERED)) | |
2169 | return; | |
2170 | ||
2171 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
2172 | if (!msg) | |
2173 | return; | |
2174 | ||
2175 | err = devlink_nl_linecard_fill(msg, devlink, linecard, cmd, 0, 0, 0, | |
2176 | NULL); | |
2177 | if (err) { | |
2178 | nlmsg_free(msg); | |
2179 | return; | |
2180 | } | |
2181 | ||
2182 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), | |
2183 | msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
2184 | } | |
2185 | ||
2186 | static int devlink_nl_cmd_linecard_get_doit(struct sk_buff *skb, | |
2187 | struct genl_info *info) | |
2188 | { | |
2189 | struct devlink_linecard *linecard = info->user_ptr[1]; | |
2190 | struct devlink *devlink = linecard->devlink; | |
2191 | struct sk_buff *msg; | |
2192 | int err; | |
2193 | ||
2194 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
2195 | if (!msg) | |
2196 | return -ENOMEM; | |
2197 | ||
fcdc8ce2 | 2198 | mutex_lock(&linecard->state_lock); |
c246f9b5 JP |
2199 | err = devlink_nl_linecard_fill(msg, devlink, linecard, |
2200 | DEVLINK_CMD_LINECARD_NEW, | |
2201 | info->snd_portid, info->snd_seq, 0, | |
2202 | info->extack); | |
fcdc8ce2 | 2203 | mutex_unlock(&linecard->state_lock); |
c246f9b5 JP |
2204 | if (err) { |
2205 | nlmsg_free(msg); | |
2206 | return err; | |
2207 | } | |
2208 | ||
2209 | return genlmsg_reply(msg, info); | |
2210 | } | |
2211 | ||
2212 | static int devlink_nl_cmd_linecard_get_dumpit(struct sk_buff *msg, | |
2213 | struct netlink_callback *cb) | |
2214 | { | |
2215 | struct devlink_linecard *linecard; | |
2216 | struct devlink *devlink; | |
2217 | int start = cb->args[0]; | |
2218 | unsigned long index; | |
2219 | int idx = 0; | |
2220 | int err; | |
2221 | ||
294c4f57 | 2222 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
c246f9b5 JP |
2223 | mutex_lock(&devlink->linecards_lock); |
2224 | list_for_each_entry(linecard, &devlink->linecard_list, list) { | |
2225 | if (idx < start) { | |
2226 | idx++; | |
2227 | continue; | |
2228 | } | |
fcdc8ce2 | 2229 | mutex_lock(&linecard->state_lock); |
c246f9b5 JP |
2230 | err = devlink_nl_linecard_fill(msg, devlink, linecard, |
2231 | DEVLINK_CMD_LINECARD_NEW, | |
2232 | NETLINK_CB(cb->skb).portid, | |
2233 | cb->nlh->nlmsg_seq, | |
2234 | NLM_F_MULTI, | |
2235 | cb->extack); | |
fcdc8ce2 | 2236 | mutex_unlock(&linecard->state_lock); |
c246f9b5 JP |
2237 | if (err) { |
2238 | mutex_unlock(&devlink->linecards_lock); | |
2239 | devlink_put(devlink); | |
2240 | goto out; | |
2241 | } | |
2242 | idx++; | |
2243 | } | |
2244 | mutex_unlock(&devlink->linecards_lock); | |
c246f9b5 JP |
2245 | devlink_put(devlink); |
2246 | } | |
2247 | out: | |
c246f9b5 JP |
2248 | cb->args[0] = idx; |
2249 | return msg->len; | |
2250 | } | |
2251 | ||
fcdc8ce2 JP |
2252 | static struct devlink_linecard_type * |
2253 | devlink_linecard_type_lookup(struct devlink_linecard *linecard, | |
2254 | const char *type) | |
2255 | { | |
2256 | struct devlink_linecard_type *linecard_type; | |
2257 | int i; | |
2258 | ||
2259 | for (i = 0; i < linecard->types_count; i++) { | |
2260 | linecard_type = &linecard->types[i]; | |
2261 | if (!strcmp(type, linecard_type->type)) | |
2262 | return linecard_type; | |
2263 | } | |
2264 | return NULL; | |
2265 | } | |
2266 | ||
2267 | static int devlink_linecard_type_set(struct devlink_linecard *linecard, | |
2268 | const char *type, | |
2269 | struct netlink_ext_ack *extack) | |
2270 | { | |
2271 | const struct devlink_linecard_ops *ops = linecard->ops; | |
2272 | struct devlink_linecard_type *linecard_type; | |
2273 | int err; | |
2274 | ||
2275 | mutex_lock(&linecard->state_lock); | |
2276 | if (linecard->state == DEVLINK_LINECARD_STATE_PROVISIONING) { | |
2277 | NL_SET_ERR_MSG_MOD(extack, "Line card is currently being provisioned"); | |
2278 | err = -EBUSY; | |
2279 | goto out; | |
2280 | } | |
2281 | if (linecard->state == DEVLINK_LINECARD_STATE_UNPROVISIONING) { | |
2282 | NL_SET_ERR_MSG_MOD(extack, "Line card is currently being unprovisioned"); | |
2283 | err = -EBUSY; | |
2284 | goto out; | |
2285 | } | |
2286 | ||
2287 | linecard_type = devlink_linecard_type_lookup(linecard, type); | |
2288 | if (!linecard_type) { | |
2289 | NL_SET_ERR_MSG_MOD(extack, "Unsupported line card type provided"); | |
2290 | err = -EINVAL; | |
2291 | goto out; | |
2292 | } | |
2293 | ||
2294 | if (linecard->state != DEVLINK_LINECARD_STATE_UNPROVISIONED && | |
2295 | linecard->state != DEVLINK_LINECARD_STATE_PROVISIONING_FAILED) { | |
2296 | NL_SET_ERR_MSG_MOD(extack, "Line card already provisioned"); | |
2297 | err = -EBUSY; | |
2298 | /* Check if the line card is provisioned in the same | |
2299 | * way the user asks. In case it is, make the operation | |
2300 | * to return success. | |
2301 | */ | |
2302 | if (ops->same_provision && | |
2303 | ops->same_provision(linecard, linecard->priv, | |
2304 | linecard_type->type, | |
2305 | linecard_type->priv)) | |
2306 | err = 0; | |
2307 | goto out; | |
2308 | } | |
2309 | ||
2310 | linecard->state = DEVLINK_LINECARD_STATE_PROVISIONING; | |
2311 | linecard->type = linecard_type->type; | |
2312 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
2313 | mutex_unlock(&linecard->state_lock); | |
2314 | err = ops->provision(linecard, linecard->priv, linecard_type->type, | |
2315 | linecard_type->priv, extack); | |
2316 | if (err) { | |
2317 | /* Provisioning failed. Assume the linecard is unprovisioned | |
2318 | * for future operations. | |
2319 | */ | |
2320 | mutex_lock(&linecard->state_lock); | |
2321 | linecard->state = DEVLINK_LINECARD_STATE_UNPROVISIONED; | |
2322 | linecard->type = NULL; | |
2323 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
2324 | mutex_unlock(&linecard->state_lock); | |
2325 | } | |
2326 | return err; | |
2327 | ||
2328 | out: | |
2329 | mutex_unlock(&linecard->state_lock); | |
2330 | return err; | |
2331 | } | |
2332 | ||
2333 | static int devlink_linecard_type_unset(struct devlink_linecard *linecard, | |
2334 | struct netlink_ext_ack *extack) | |
2335 | { | |
2336 | int err; | |
2337 | ||
2338 | mutex_lock(&linecard->state_lock); | |
2339 | if (linecard->state == DEVLINK_LINECARD_STATE_PROVISIONING) { | |
2340 | NL_SET_ERR_MSG_MOD(extack, "Line card is currently being provisioned"); | |
2341 | err = -EBUSY; | |
2342 | goto out; | |
2343 | } | |
2344 | if (linecard->state == DEVLINK_LINECARD_STATE_UNPROVISIONING) { | |
2345 | NL_SET_ERR_MSG_MOD(extack, "Line card is currently being unprovisioned"); | |
2346 | err = -EBUSY; | |
2347 | goto out; | |
2348 | } | |
2349 | if (linecard->state == DEVLINK_LINECARD_STATE_PROVISIONING_FAILED) { | |
2350 | linecard->state = DEVLINK_LINECARD_STATE_UNPROVISIONED; | |
2351 | linecard->type = NULL; | |
2352 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
2353 | err = 0; | |
2354 | goto out; | |
2355 | } | |
2356 | ||
2357 | if (linecard->state == DEVLINK_LINECARD_STATE_UNPROVISIONED) { | |
2358 | NL_SET_ERR_MSG_MOD(extack, "Line card is not provisioned"); | |
2359 | err = 0; | |
2360 | goto out; | |
2361 | } | |
2362 | linecard->state = DEVLINK_LINECARD_STATE_UNPROVISIONING; | |
2363 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
2364 | mutex_unlock(&linecard->state_lock); | |
2365 | err = linecard->ops->unprovision(linecard, linecard->priv, | |
2366 | extack); | |
2367 | if (err) { | |
2368 | /* Unprovisioning failed. Assume the linecard is unprovisioned | |
2369 | * for future operations. | |
2370 | */ | |
2371 | mutex_lock(&linecard->state_lock); | |
2372 | linecard->state = DEVLINK_LINECARD_STATE_UNPROVISIONED; | |
2373 | linecard->type = NULL; | |
2374 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
2375 | mutex_unlock(&linecard->state_lock); | |
2376 | } | |
2377 | return err; | |
2378 | ||
2379 | out: | |
2380 | mutex_unlock(&linecard->state_lock); | |
2381 | return err; | |
2382 | } | |
2383 | ||
2384 | static int devlink_nl_cmd_linecard_set_doit(struct sk_buff *skb, | |
2385 | struct genl_info *info) | |
2386 | { | |
2387 | struct devlink_linecard *linecard = info->user_ptr[1]; | |
2388 | struct netlink_ext_ack *extack = info->extack; | |
2389 | int err; | |
2390 | ||
2391 | if (info->attrs[DEVLINK_ATTR_LINECARD_TYPE]) { | |
2392 | const char *type; | |
2393 | ||
2394 | type = nla_data(info->attrs[DEVLINK_ATTR_LINECARD_TYPE]); | |
2395 | if (strcmp(type, "")) { | |
2396 | err = devlink_linecard_type_set(linecard, type, extack); | |
2397 | if (err) | |
2398 | return err; | |
2399 | } else { | |
2400 | err = devlink_linecard_type_unset(linecard, extack); | |
2401 | if (err) | |
2402 | return err; | |
2403 | } | |
2404 | } | |
2405 | ||
2406 | return 0; | |
2407 | } | |
2408 | ||
bf797471 JP |
2409 | static int devlink_nl_sb_fill(struct sk_buff *msg, struct devlink *devlink, |
2410 | struct devlink_sb *devlink_sb, | |
2411 | enum devlink_command cmd, u32 portid, | |
2412 | u32 seq, int flags) | |
2413 | { | |
2414 | void *hdr; | |
2415 | ||
2416 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
2417 | if (!hdr) | |
2418 | return -EMSGSIZE; | |
2419 | ||
2420 | if (devlink_nl_put_handle(msg, devlink)) | |
2421 | goto nla_put_failure; | |
2422 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_INDEX, devlink_sb->index)) | |
2423 | goto nla_put_failure; | |
2424 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_SIZE, devlink_sb->size)) | |
2425 | goto nla_put_failure; | |
2426 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_INGRESS_POOL_COUNT, | |
2427 | devlink_sb->ingress_pools_count)) | |
2428 | goto nla_put_failure; | |
2429 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_EGRESS_POOL_COUNT, | |
2430 | devlink_sb->egress_pools_count)) | |
2431 | goto nla_put_failure; | |
2432 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_INGRESS_TC_COUNT, | |
2433 | devlink_sb->ingress_tc_count)) | |
2434 | goto nla_put_failure; | |
2435 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_EGRESS_TC_COUNT, | |
2436 | devlink_sb->egress_tc_count)) | |
2437 | goto nla_put_failure; | |
2438 | ||
2439 | genlmsg_end(msg, hdr); | |
2440 | return 0; | |
2441 | ||
2442 | nla_put_failure: | |
2443 | genlmsg_cancel(msg, hdr); | |
2444 | return -EMSGSIZE; | |
2445 | } | |
2446 | ||
2447 | static int devlink_nl_cmd_sb_get_doit(struct sk_buff *skb, | |
2448 | struct genl_info *info) | |
2449 | { | |
2450 | struct devlink *devlink = info->user_ptr[0]; | |
637989b5 | 2451 | struct devlink_sb *devlink_sb; |
bf797471 JP |
2452 | struct sk_buff *msg; |
2453 | int err; | |
2454 | ||
637989b5 PP |
2455 | devlink_sb = devlink_sb_get_from_info(devlink, info); |
2456 | if (IS_ERR(devlink_sb)) | |
2457 | return PTR_ERR(devlink_sb); | |
2458 | ||
bf797471 JP |
2459 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
2460 | if (!msg) | |
2461 | return -ENOMEM; | |
2462 | ||
2463 | err = devlink_nl_sb_fill(msg, devlink, devlink_sb, | |
2464 | DEVLINK_CMD_SB_NEW, | |
2465 | info->snd_portid, info->snd_seq, 0); | |
2466 | if (err) { | |
2467 | nlmsg_free(msg); | |
2468 | return err; | |
2469 | } | |
2470 | ||
2471 | return genlmsg_reply(msg, info); | |
2472 | } | |
2473 | ||
2474 | static int devlink_nl_cmd_sb_get_dumpit(struct sk_buff *msg, | |
2475 | struct netlink_callback *cb) | |
2476 | { | |
2477 | struct devlink *devlink; | |
2478 | struct devlink_sb *devlink_sb; | |
2479 | int start = cb->args[0]; | |
11a861d7 | 2480 | unsigned long index; |
bf797471 JP |
2481 | int idx = 0; |
2482 | int err; | |
2483 | ||
294c4f57 | 2484 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
7715023a | 2485 | devl_lock(devlink); |
bf797471 JP |
2486 | list_for_each_entry(devlink_sb, &devlink->sb_list, list) { |
2487 | if (idx < start) { | |
2488 | idx++; | |
2489 | continue; | |
2490 | } | |
2491 | err = devlink_nl_sb_fill(msg, devlink, devlink_sb, | |
2492 | DEVLINK_CMD_SB_NEW, | |
2493 | NETLINK_CB(cb->skb).portid, | |
2494 | cb->nlh->nlmsg_seq, | |
2495 | NLM_F_MULTI); | |
2406e7e5 | 2496 | if (err) { |
7715023a | 2497 | devl_unlock(devlink); |
437ebfd9 | 2498 | devlink_put(devlink); |
bf797471 | 2499 | goto out; |
2406e7e5 | 2500 | } |
bf797471 JP |
2501 | idx++; |
2502 | } | |
7715023a | 2503 | devl_unlock(devlink); |
437ebfd9 | 2504 | devlink_put(devlink); |
bf797471 JP |
2505 | } |
2506 | out: | |
bf797471 JP |
2507 | cb->args[0] = idx; |
2508 | return msg->len; | |
2509 | } | |
2510 | ||
2511 | static int devlink_nl_sb_pool_fill(struct sk_buff *msg, struct devlink *devlink, | |
2512 | struct devlink_sb *devlink_sb, | |
2513 | u16 pool_index, enum devlink_command cmd, | |
2514 | u32 portid, u32 seq, int flags) | |
2515 | { | |
2516 | struct devlink_sb_pool_info pool_info; | |
2517 | void *hdr; | |
2518 | int err; | |
2519 | ||
2520 | err = devlink->ops->sb_pool_get(devlink, devlink_sb->index, | |
2521 | pool_index, &pool_info); | |
2522 | if (err) | |
2523 | return err; | |
2524 | ||
2525 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
2526 | if (!hdr) | |
2527 | return -EMSGSIZE; | |
2528 | ||
2529 | if (devlink_nl_put_handle(msg, devlink)) | |
2530 | goto nla_put_failure; | |
2531 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_INDEX, devlink_sb->index)) | |
2532 | goto nla_put_failure; | |
2533 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_POOL_INDEX, pool_index)) | |
2534 | goto nla_put_failure; | |
2535 | if (nla_put_u8(msg, DEVLINK_ATTR_SB_POOL_TYPE, pool_info.pool_type)) | |
2536 | goto nla_put_failure; | |
2537 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_POOL_SIZE, pool_info.size)) | |
2538 | goto nla_put_failure; | |
2539 | if (nla_put_u8(msg, DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE, | |
2540 | pool_info.threshold_type)) | |
2541 | goto nla_put_failure; | |
bff5731d JK |
2542 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_POOL_CELL_SIZE, |
2543 | pool_info.cell_size)) | |
2544 | goto nla_put_failure; | |
bf797471 JP |
2545 | |
2546 | genlmsg_end(msg, hdr); | |
2547 | return 0; | |
2548 | ||
2549 | nla_put_failure: | |
2550 | genlmsg_cancel(msg, hdr); | |
2551 | return -EMSGSIZE; | |
2552 | } | |
2553 | ||
2554 | static int devlink_nl_cmd_sb_pool_get_doit(struct sk_buff *skb, | |
2555 | struct genl_info *info) | |
2556 | { | |
2557 | struct devlink *devlink = info->user_ptr[0]; | |
637989b5 | 2558 | struct devlink_sb *devlink_sb; |
bf797471 JP |
2559 | struct sk_buff *msg; |
2560 | u16 pool_index; | |
2561 | int err; | |
2562 | ||
637989b5 PP |
2563 | devlink_sb = devlink_sb_get_from_info(devlink, info); |
2564 | if (IS_ERR(devlink_sb)) | |
2565 | return PTR_ERR(devlink_sb); | |
2566 | ||
bf797471 JP |
2567 | err = devlink_sb_pool_index_get_from_info(devlink_sb, info, |
2568 | &pool_index); | |
2569 | if (err) | |
2570 | return err; | |
2571 | ||
be6fe1d8 | 2572 | if (!devlink->ops->sb_pool_get) |
bf797471 JP |
2573 | return -EOPNOTSUPP; |
2574 | ||
2575 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
2576 | if (!msg) | |
2577 | return -ENOMEM; | |
2578 | ||
2579 | err = devlink_nl_sb_pool_fill(msg, devlink, devlink_sb, pool_index, | |
2580 | DEVLINK_CMD_SB_POOL_NEW, | |
2581 | info->snd_portid, info->snd_seq, 0); | |
2582 | if (err) { | |
2583 | nlmsg_free(msg); | |
2584 | return err; | |
2585 | } | |
2586 | ||
2587 | return genlmsg_reply(msg, info); | |
2588 | } | |
2589 | ||
2590 | static int __sb_pool_get_dumpit(struct sk_buff *msg, int start, int *p_idx, | |
2591 | struct devlink *devlink, | |
2592 | struct devlink_sb *devlink_sb, | |
2593 | u32 portid, u32 seq) | |
2594 | { | |
2595 | u16 pool_count = devlink_sb_pool_count(devlink_sb); | |
2596 | u16 pool_index; | |
2597 | int err; | |
2598 | ||
2599 | for (pool_index = 0; pool_index < pool_count; pool_index++) { | |
2600 | if (*p_idx < start) { | |
2601 | (*p_idx)++; | |
2602 | continue; | |
2603 | } | |
2604 | err = devlink_nl_sb_pool_fill(msg, devlink, | |
2605 | devlink_sb, | |
2606 | pool_index, | |
2607 | DEVLINK_CMD_SB_POOL_NEW, | |
2608 | portid, seq, NLM_F_MULTI); | |
2609 | if (err) | |
2610 | return err; | |
2611 | (*p_idx)++; | |
2612 | } | |
2613 | return 0; | |
2614 | } | |
2615 | ||
2616 | static int devlink_nl_cmd_sb_pool_get_dumpit(struct sk_buff *msg, | |
2617 | struct netlink_callback *cb) | |
2618 | { | |
2619 | struct devlink *devlink; | |
2620 | struct devlink_sb *devlink_sb; | |
2621 | int start = cb->args[0]; | |
11a861d7 | 2622 | unsigned long index; |
bf797471 | 2623 | int idx = 0; |
c62c2cfb | 2624 | int err = 0; |
bf797471 | 2625 | |
294c4f57 | 2626 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
2bb88b2c | 2627 | if (!devlink->ops->sb_pool_get) |
437ebfd9 LR |
2628 | goto retry; |
2629 | ||
7715023a | 2630 | devl_lock(devlink); |
bf797471 JP |
2631 | list_for_each_entry(devlink_sb, &devlink->sb_list, list) { |
2632 | err = __sb_pool_get_dumpit(msg, start, &idx, devlink, | |
2633 | devlink_sb, | |
2634 | NETLINK_CB(cb->skb).portid, | |
2635 | cb->nlh->nlmsg_seq); | |
82274d07 JK |
2636 | if (err == -EOPNOTSUPP) { |
2637 | err = 0; | |
2638 | } else if (err) { | |
7715023a | 2639 | devl_unlock(devlink); |
437ebfd9 | 2640 | devlink_put(devlink); |
bf797471 | 2641 | goto out; |
2406e7e5 | 2642 | } |
bf797471 | 2643 | } |
7715023a | 2644 | devl_unlock(devlink); |
437ebfd9 LR |
2645 | retry: |
2646 | devlink_put(devlink); | |
bf797471 JP |
2647 | } |
2648 | out: | |
c62c2cfb JP |
2649 | if (err != -EMSGSIZE) |
2650 | return err; | |
2651 | ||
bf797471 JP |
2652 | cb->args[0] = idx; |
2653 | return msg->len; | |
2654 | } | |
2655 | ||
2656 | static int devlink_sb_pool_set(struct devlink *devlink, unsigned int sb_index, | |
2657 | u16 pool_index, u32 size, | |
f2ad1a52 IS |
2658 | enum devlink_sb_threshold_type threshold_type, |
2659 | struct netlink_ext_ack *extack) | |
bf797471 JP |
2660 | |
2661 | { | |
2662 | const struct devlink_ops *ops = devlink->ops; | |
2663 | ||
be6fe1d8 | 2664 | if (ops->sb_pool_set) |
bf797471 | 2665 | return ops->sb_pool_set(devlink, sb_index, pool_index, |
f2ad1a52 | 2666 | size, threshold_type, extack); |
bf797471 JP |
2667 | return -EOPNOTSUPP; |
2668 | } | |
2669 | ||
2670 | static int devlink_nl_cmd_sb_pool_set_doit(struct sk_buff *skb, | |
2671 | struct genl_info *info) | |
2672 | { | |
2673 | struct devlink *devlink = info->user_ptr[0]; | |
bf797471 | 2674 | enum devlink_sb_threshold_type threshold_type; |
637989b5 | 2675 | struct devlink_sb *devlink_sb; |
bf797471 JP |
2676 | u16 pool_index; |
2677 | u32 size; | |
2678 | int err; | |
2679 | ||
637989b5 PP |
2680 | devlink_sb = devlink_sb_get_from_info(devlink, info); |
2681 | if (IS_ERR(devlink_sb)) | |
2682 | return PTR_ERR(devlink_sb); | |
2683 | ||
bf797471 JP |
2684 | err = devlink_sb_pool_index_get_from_info(devlink_sb, info, |
2685 | &pool_index); | |
2686 | if (err) | |
2687 | return err; | |
2688 | ||
2689 | err = devlink_sb_th_type_get_from_info(info, &threshold_type); | |
2690 | if (err) | |
2691 | return err; | |
2692 | ||
2693 | if (!info->attrs[DEVLINK_ATTR_SB_POOL_SIZE]) | |
2694 | return -EINVAL; | |
2695 | ||
2696 | size = nla_get_u32(info->attrs[DEVLINK_ATTR_SB_POOL_SIZE]); | |
2697 | return devlink_sb_pool_set(devlink, devlink_sb->index, | |
f2ad1a52 IS |
2698 | pool_index, size, threshold_type, |
2699 | info->extack); | |
bf797471 JP |
2700 | } |
2701 | ||
2702 | static int devlink_nl_sb_port_pool_fill(struct sk_buff *msg, | |
2703 | struct devlink *devlink, | |
2704 | struct devlink_port *devlink_port, | |
2705 | struct devlink_sb *devlink_sb, | |
2706 | u16 pool_index, | |
2707 | enum devlink_command cmd, | |
2708 | u32 portid, u32 seq, int flags) | |
2709 | { | |
df38dafd | 2710 | const struct devlink_ops *ops = devlink->ops; |
bf797471 JP |
2711 | u32 threshold; |
2712 | void *hdr; | |
2713 | int err; | |
2714 | ||
df38dafd JP |
2715 | err = ops->sb_port_pool_get(devlink_port, devlink_sb->index, |
2716 | pool_index, &threshold); | |
bf797471 JP |
2717 | if (err) |
2718 | return err; | |
2719 | ||
2720 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
2721 | if (!hdr) | |
2722 | return -EMSGSIZE; | |
2723 | ||
2724 | if (devlink_nl_put_handle(msg, devlink)) | |
2725 | goto nla_put_failure; | |
2726 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, devlink_port->index)) | |
2727 | goto nla_put_failure; | |
2728 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_INDEX, devlink_sb->index)) | |
2729 | goto nla_put_failure; | |
2730 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_POOL_INDEX, pool_index)) | |
2731 | goto nla_put_failure; | |
2732 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_THRESHOLD, threshold)) | |
2733 | goto nla_put_failure; | |
2734 | ||
df38dafd JP |
2735 | if (ops->sb_occ_port_pool_get) { |
2736 | u32 cur; | |
2737 | u32 max; | |
2738 | ||
2739 | err = ops->sb_occ_port_pool_get(devlink_port, devlink_sb->index, | |
2740 | pool_index, &cur, &max); | |
2741 | if (err && err != -EOPNOTSUPP) | |
849920c7 | 2742 | goto sb_occ_get_failure; |
df38dafd JP |
2743 | if (!err) { |
2744 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_OCC_CUR, cur)) | |
2745 | goto nla_put_failure; | |
2746 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_OCC_MAX, max)) | |
2747 | goto nla_put_failure; | |
2748 | } | |
2749 | } | |
2750 | ||
bf797471 JP |
2751 | genlmsg_end(msg, hdr); |
2752 | return 0; | |
2753 | ||
2754 | nla_put_failure: | |
849920c7 WH |
2755 | err = -EMSGSIZE; |
2756 | sb_occ_get_failure: | |
bf797471 | 2757 | genlmsg_cancel(msg, hdr); |
849920c7 | 2758 | return err; |
bf797471 JP |
2759 | } |
2760 | ||
2761 | static int devlink_nl_cmd_sb_port_pool_get_doit(struct sk_buff *skb, | |
2762 | struct genl_info *info) | |
2763 | { | |
637989b5 | 2764 | struct devlink_port *devlink_port = info->user_ptr[1]; |
bf797471 | 2765 | struct devlink *devlink = devlink_port->devlink; |
637989b5 | 2766 | struct devlink_sb *devlink_sb; |
bf797471 JP |
2767 | struct sk_buff *msg; |
2768 | u16 pool_index; | |
2769 | int err; | |
2770 | ||
637989b5 PP |
2771 | devlink_sb = devlink_sb_get_from_info(devlink, info); |
2772 | if (IS_ERR(devlink_sb)) | |
2773 | return PTR_ERR(devlink_sb); | |
2774 | ||
bf797471 JP |
2775 | err = devlink_sb_pool_index_get_from_info(devlink_sb, info, |
2776 | &pool_index); | |
2777 | if (err) | |
2778 | return err; | |
2779 | ||
be6fe1d8 | 2780 | if (!devlink->ops->sb_port_pool_get) |
bf797471 JP |
2781 | return -EOPNOTSUPP; |
2782 | ||
2783 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
2784 | if (!msg) | |
2785 | return -ENOMEM; | |
2786 | ||
2787 | err = devlink_nl_sb_port_pool_fill(msg, devlink, devlink_port, | |
2788 | devlink_sb, pool_index, | |
2789 | DEVLINK_CMD_SB_PORT_POOL_NEW, | |
2790 | info->snd_portid, info->snd_seq, 0); | |
2791 | if (err) { | |
2792 | nlmsg_free(msg); | |
2793 | return err; | |
2794 | } | |
2795 | ||
2796 | return genlmsg_reply(msg, info); | |
2797 | } | |
2798 | ||
2799 | static int __sb_port_pool_get_dumpit(struct sk_buff *msg, int start, int *p_idx, | |
2800 | struct devlink *devlink, | |
2801 | struct devlink_sb *devlink_sb, | |
2802 | u32 portid, u32 seq) | |
2803 | { | |
2804 | struct devlink_port *devlink_port; | |
2805 | u16 pool_count = devlink_sb_pool_count(devlink_sb); | |
2806 | u16 pool_index; | |
2807 | int err; | |
2808 | ||
2809 | list_for_each_entry(devlink_port, &devlink->port_list, list) { | |
2810 | for (pool_index = 0; pool_index < pool_count; pool_index++) { | |
2811 | if (*p_idx < start) { | |
2812 | (*p_idx)++; | |
2813 | continue; | |
2814 | } | |
2815 | err = devlink_nl_sb_port_pool_fill(msg, devlink, | |
2816 | devlink_port, | |
2817 | devlink_sb, | |
2818 | pool_index, | |
2819 | DEVLINK_CMD_SB_PORT_POOL_NEW, | |
2820 | portid, seq, | |
2821 | NLM_F_MULTI); | |
2822 | if (err) | |
2823 | return err; | |
2824 | (*p_idx)++; | |
2825 | } | |
2826 | } | |
2827 | return 0; | |
2828 | } | |
2829 | ||
2830 | static int devlink_nl_cmd_sb_port_pool_get_dumpit(struct sk_buff *msg, | |
2831 | struct netlink_callback *cb) | |
2832 | { | |
2833 | struct devlink *devlink; | |
2834 | struct devlink_sb *devlink_sb; | |
2835 | int start = cb->args[0]; | |
11a861d7 | 2836 | unsigned long index; |
bf797471 | 2837 | int idx = 0; |
c62c2cfb | 2838 | int err = 0; |
bf797471 | 2839 | |
294c4f57 JP |
2840 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
2841 | if (!devlink->ops->sb_port_pool_get) | |
437ebfd9 LR |
2842 | goto retry; |
2843 | ||
7715023a | 2844 | devl_lock(devlink); |
bf797471 JP |
2845 | list_for_each_entry(devlink_sb, &devlink->sb_list, list) { |
2846 | err = __sb_port_pool_get_dumpit(msg, start, &idx, | |
2847 | devlink, devlink_sb, | |
2848 | NETLINK_CB(cb->skb).portid, | |
2849 | cb->nlh->nlmsg_seq); | |
82274d07 JK |
2850 | if (err == -EOPNOTSUPP) { |
2851 | err = 0; | |
2852 | } else if (err) { | |
7715023a | 2853 | devl_unlock(devlink); |
437ebfd9 | 2854 | devlink_put(devlink); |
bf797471 | 2855 | goto out; |
2406e7e5 | 2856 | } |
bf797471 | 2857 | } |
7715023a | 2858 | devl_unlock(devlink); |
437ebfd9 LR |
2859 | retry: |
2860 | devlink_put(devlink); | |
bf797471 JP |
2861 | } |
2862 | out: | |
c62c2cfb JP |
2863 | if (err != -EMSGSIZE) |
2864 | return err; | |
2865 | ||
bf797471 JP |
2866 | cb->args[0] = idx; |
2867 | return msg->len; | |
2868 | } | |
2869 | ||
2870 | static int devlink_sb_port_pool_set(struct devlink_port *devlink_port, | |
2871 | unsigned int sb_index, u16 pool_index, | |
f2ad1a52 IS |
2872 | u32 threshold, |
2873 | struct netlink_ext_ack *extack) | |
bf797471 JP |
2874 | |
2875 | { | |
2876 | const struct devlink_ops *ops = devlink_port->devlink->ops; | |
2877 | ||
be6fe1d8 | 2878 | if (ops->sb_port_pool_set) |
bf797471 | 2879 | return ops->sb_port_pool_set(devlink_port, sb_index, |
f2ad1a52 | 2880 | pool_index, threshold, extack); |
bf797471 JP |
2881 | return -EOPNOTSUPP; |
2882 | } | |
2883 | ||
2884 | static int devlink_nl_cmd_sb_port_pool_set_doit(struct sk_buff *skb, | |
2885 | struct genl_info *info) | |
2886 | { | |
637989b5 PP |
2887 | struct devlink_port *devlink_port = info->user_ptr[1]; |
2888 | struct devlink *devlink = info->user_ptr[0]; | |
2889 | struct devlink_sb *devlink_sb; | |
bf797471 JP |
2890 | u16 pool_index; |
2891 | u32 threshold; | |
2892 | int err; | |
2893 | ||
637989b5 PP |
2894 | devlink_sb = devlink_sb_get_from_info(devlink, info); |
2895 | if (IS_ERR(devlink_sb)) | |
2896 | return PTR_ERR(devlink_sb); | |
2897 | ||
bf797471 JP |
2898 | err = devlink_sb_pool_index_get_from_info(devlink_sb, info, |
2899 | &pool_index); | |
2900 | if (err) | |
2901 | return err; | |
2902 | ||
2903 | if (!info->attrs[DEVLINK_ATTR_SB_THRESHOLD]) | |
2904 | return -EINVAL; | |
2905 | ||
2906 | threshold = nla_get_u32(info->attrs[DEVLINK_ATTR_SB_THRESHOLD]); | |
2907 | return devlink_sb_port_pool_set(devlink_port, devlink_sb->index, | |
f2ad1a52 | 2908 | pool_index, threshold, info->extack); |
bf797471 JP |
2909 | } |
2910 | ||
2911 | static int | |
2912 | devlink_nl_sb_tc_pool_bind_fill(struct sk_buff *msg, struct devlink *devlink, | |
2913 | struct devlink_port *devlink_port, | |
2914 | struct devlink_sb *devlink_sb, u16 tc_index, | |
2915 | enum devlink_sb_pool_type pool_type, | |
2916 | enum devlink_command cmd, | |
2917 | u32 portid, u32 seq, int flags) | |
2918 | { | |
df38dafd | 2919 | const struct devlink_ops *ops = devlink->ops; |
bf797471 JP |
2920 | u16 pool_index; |
2921 | u32 threshold; | |
2922 | void *hdr; | |
2923 | int err; | |
2924 | ||
df38dafd JP |
2925 | err = ops->sb_tc_pool_bind_get(devlink_port, devlink_sb->index, |
2926 | tc_index, pool_type, | |
2927 | &pool_index, &threshold); | |
bf797471 JP |
2928 | if (err) |
2929 | return err; | |
2930 | ||
2931 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
2932 | if (!hdr) | |
2933 | return -EMSGSIZE; | |
2934 | ||
2935 | if (devlink_nl_put_handle(msg, devlink)) | |
2936 | goto nla_put_failure; | |
2937 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, devlink_port->index)) | |
2938 | goto nla_put_failure; | |
2939 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_INDEX, devlink_sb->index)) | |
2940 | goto nla_put_failure; | |
2941 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_TC_INDEX, tc_index)) | |
2942 | goto nla_put_failure; | |
2943 | if (nla_put_u8(msg, DEVLINK_ATTR_SB_POOL_TYPE, pool_type)) | |
2944 | goto nla_put_failure; | |
2945 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_POOL_INDEX, pool_index)) | |
2946 | goto nla_put_failure; | |
2947 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_THRESHOLD, threshold)) | |
2948 | goto nla_put_failure; | |
2949 | ||
df38dafd JP |
2950 | if (ops->sb_occ_tc_port_bind_get) { |
2951 | u32 cur; | |
2952 | u32 max; | |
2953 | ||
2954 | err = ops->sb_occ_tc_port_bind_get(devlink_port, | |
2955 | devlink_sb->index, | |
2956 | tc_index, pool_type, | |
2957 | &cur, &max); | |
2958 | if (err && err != -EOPNOTSUPP) | |
2959 | return err; | |
2960 | if (!err) { | |
2961 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_OCC_CUR, cur)) | |
2962 | goto nla_put_failure; | |
2963 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_OCC_MAX, max)) | |
2964 | goto nla_put_failure; | |
2965 | } | |
2966 | } | |
2967 | ||
bf797471 JP |
2968 | genlmsg_end(msg, hdr); |
2969 | return 0; | |
2970 | ||
2971 | nla_put_failure: | |
2972 | genlmsg_cancel(msg, hdr); | |
2973 | return -EMSGSIZE; | |
2974 | } | |
2975 | ||
2976 | static int devlink_nl_cmd_sb_tc_pool_bind_get_doit(struct sk_buff *skb, | |
2977 | struct genl_info *info) | |
2978 | { | |
637989b5 | 2979 | struct devlink_port *devlink_port = info->user_ptr[1]; |
bf797471 | 2980 | struct devlink *devlink = devlink_port->devlink; |
637989b5 | 2981 | struct devlink_sb *devlink_sb; |
bf797471 JP |
2982 | struct sk_buff *msg; |
2983 | enum devlink_sb_pool_type pool_type; | |
2984 | u16 tc_index; | |
2985 | int err; | |
2986 | ||
637989b5 PP |
2987 | devlink_sb = devlink_sb_get_from_info(devlink, info); |
2988 | if (IS_ERR(devlink_sb)) | |
2989 | return PTR_ERR(devlink_sb); | |
2990 | ||
bf797471 JP |
2991 | err = devlink_sb_pool_type_get_from_info(info, &pool_type); |
2992 | if (err) | |
2993 | return err; | |
2994 | ||
2995 | err = devlink_sb_tc_index_get_from_info(devlink_sb, info, | |
2996 | pool_type, &tc_index); | |
2997 | if (err) | |
2998 | return err; | |
2999 | ||
be6fe1d8 | 3000 | if (!devlink->ops->sb_tc_pool_bind_get) |
bf797471 JP |
3001 | return -EOPNOTSUPP; |
3002 | ||
3003 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
3004 | if (!msg) | |
3005 | return -ENOMEM; | |
3006 | ||
3007 | err = devlink_nl_sb_tc_pool_bind_fill(msg, devlink, devlink_port, | |
3008 | devlink_sb, tc_index, pool_type, | |
3009 | DEVLINK_CMD_SB_TC_POOL_BIND_NEW, | |
3010 | info->snd_portid, | |
3011 | info->snd_seq, 0); | |
3012 | if (err) { | |
3013 | nlmsg_free(msg); | |
3014 | return err; | |
3015 | } | |
3016 | ||
3017 | return genlmsg_reply(msg, info); | |
3018 | } | |
3019 | ||
3020 | static int __sb_tc_pool_bind_get_dumpit(struct sk_buff *msg, | |
3021 | int start, int *p_idx, | |
3022 | struct devlink *devlink, | |
3023 | struct devlink_sb *devlink_sb, | |
3024 | u32 portid, u32 seq) | |
3025 | { | |
3026 | struct devlink_port *devlink_port; | |
3027 | u16 tc_index; | |
3028 | int err; | |
3029 | ||
3030 | list_for_each_entry(devlink_port, &devlink->port_list, list) { | |
3031 | for (tc_index = 0; | |
3032 | tc_index < devlink_sb->ingress_tc_count; tc_index++) { | |
3033 | if (*p_idx < start) { | |
3034 | (*p_idx)++; | |
3035 | continue; | |
3036 | } | |
3037 | err = devlink_nl_sb_tc_pool_bind_fill(msg, devlink, | |
3038 | devlink_port, | |
3039 | devlink_sb, | |
3040 | tc_index, | |
3041 | DEVLINK_SB_POOL_TYPE_INGRESS, | |
3042 | DEVLINK_CMD_SB_TC_POOL_BIND_NEW, | |
3043 | portid, seq, | |
3044 | NLM_F_MULTI); | |
3045 | if (err) | |
3046 | return err; | |
3047 | (*p_idx)++; | |
3048 | } | |
3049 | for (tc_index = 0; | |
3050 | tc_index < devlink_sb->egress_tc_count; tc_index++) { | |
3051 | if (*p_idx < start) { | |
3052 | (*p_idx)++; | |
3053 | continue; | |
3054 | } | |
3055 | err = devlink_nl_sb_tc_pool_bind_fill(msg, devlink, | |
3056 | devlink_port, | |
3057 | devlink_sb, | |
3058 | tc_index, | |
3059 | DEVLINK_SB_POOL_TYPE_EGRESS, | |
3060 | DEVLINK_CMD_SB_TC_POOL_BIND_NEW, | |
3061 | portid, seq, | |
3062 | NLM_F_MULTI); | |
3063 | if (err) | |
3064 | return err; | |
3065 | (*p_idx)++; | |
3066 | } | |
3067 | } | |
3068 | return 0; | |
3069 | } | |
3070 | ||
3071 | static int | |
3072 | devlink_nl_cmd_sb_tc_pool_bind_get_dumpit(struct sk_buff *msg, | |
3073 | struct netlink_callback *cb) | |
3074 | { | |
3075 | struct devlink *devlink; | |
3076 | struct devlink_sb *devlink_sb; | |
3077 | int start = cb->args[0]; | |
11a861d7 | 3078 | unsigned long index; |
bf797471 | 3079 | int idx = 0; |
c62c2cfb | 3080 | int err = 0; |
bf797471 | 3081 | |
294c4f57 JP |
3082 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
3083 | if (!devlink->ops->sb_tc_pool_bind_get) | |
437ebfd9 | 3084 | goto retry; |
2406e7e5 | 3085 | |
7715023a | 3086 | devl_lock(devlink); |
bf797471 JP |
3087 | list_for_each_entry(devlink_sb, &devlink->sb_list, list) { |
3088 | err = __sb_tc_pool_bind_get_dumpit(msg, start, &idx, | |
3089 | devlink, | |
3090 | devlink_sb, | |
3091 | NETLINK_CB(cb->skb).portid, | |
3092 | cb->nlh->nlmsg_seq); | |
82274d07 JK |
3093 | if (err == -EOPNOTSUPP) { |
3094 | err = 0; | |
3095 | } else if (err) { | |
7715023a | 3096 | devl_unlock(devlink); |
437ebfd9 | 3097 | devlink_put(devlink); |
bf797471 | 3098 | goto out; |
2406e7e5 | 3099 | } |
bf797471 | 3100 | } |
7715023a | 3101 | devl_unlock(devlink); |
437ebfd9 LR |
3102 | retry: |
3103 | devlink_put(devlink); | |
bf797471 JP |
3104 | } |
3105 | out: | |
c62c2cfb JP |
3106 | if (err != -EMSGSIZE) |
3107 | return err; | |
3108 | ||
bf797471 JP |
3109 | cb->args[0] = idx; |
3110 | return msg->len; | |
3111 | } | |
3112 | ||
3113 | static int devlink_sb_tc_pool_bind_set(struct devlink_port *devlink_port, | |
3114 | unsigned int sb_index, u16 tc_index, | |
3115 | enum devlink_sb_pool_type pool_type, | |
f2ad1a52 IS |
3116 | u16 pool_index, u32 threshold, |
3117 | struct netlink_ext_ack *extack) | |
bf797471 JP |
3118 | |
3119 | { | |
3120 | const struct devlink_ops *ops = devlink_port->devlink->ops; | |
3121 | ||
be6fe1d8 | 3122 | if (ops->sb_tc_pool_bind_set) |
bf797471 JP |
3123 | return ops->sb_tc_pool_bind_set(devlink_port, sb_index, |
3124 | tc_index, pool_type, | |
f2ad1a52 | 3125 | pool_index, threshold, extack); |
bf797471 JP |
3126 | return -EOPNOTSUPP; |
3127 | } | |
3128 | ||
3129 | static int devlink_nl_cmd_sb_tc_pool_bind_set_doit(struct sk_buff *skb, | |
3130 | struct genl_info *info) | |
3131 | { | |
637989b5 PP |
3132 | struct devlink_port *devlink_port = info->user_ptr[1]; |
3133 | struct devlink *devlink = info->user_ptr[0]; | |
bf797471 | 3134 | enum devlink_sb_pool_type pool_type; |
637989b5 | 3135 | struct devlink_sb *devlink_sb; |
bf797471 JP |
3136 | u16 tc_index; |
3137 | u16 pool_index; | |
3138 | u32 threshold; | |
3139 | int err; | |
3140 | ||
637989b5 PP |
3141 | devlink_sb = devlink_sb_get_from_info(devlink, info); |
3142 | if (IS_ERR(devlink_sb)) | |
3143 | return PTR_ERR(devlink_sb); | |
3144 | ||
bf797471 JP |
3145 | err = devlink_sb_pool_type_get_from_info(info, &pool_type); |
3146 | if (err) | |
3147 | return err; | |
3148 | ||
3149 | err = devlink_sb_tc_index_get_from_info(devlink_sb, info, | |
3150 | pool_type, &tc_index); | |
3151 | if (err) | |
3152 | return err; | |
3153 | ||
3154 | err = devlink_sb_pool_index_get_from_info(devlink_sb, info, | |
3155 | &pool_index); | |
3156 | if (err) | |
3157 | return err; | |
3158 | ||
3159 | if (!info->attrs[DEVLINK_ATTR_SB_THRESHOLD]) | |
3160 | return -EINVAL; | |
3161 | ||
3162 | threshold = nla_get_u32(info->attrs[DEVLINK_ATTR_SB_THRESHOLD]); | |
3163 | return devlink_sb_tc_pool_bind_set(devlink_port, devlink_sb->index, | |
3164 | tc_index, pool_type, | |
f2ad1a52 | 3165 | pool_index, threshold, info->extack); |
bf797471 JP |
3166 | } |
3167 | ||
df38dafd JP |
3168 | static int devlink_nl_cmd_sb_occ_snapshot_doit(struct sk_buff *skb, |
3169 | struct genl_info *info) | |
3170 | { | |
3171 | struct devlink *devlink = info->user_ptr[0]; | |
df38dafd | 3172 | const struct devlink_ops *ops = devlink->ops; |
637989b5 PP |
3173 | struct devlink_sb *devlink_sb; |
3174 | ||
3175 | devlink_sb = devlink_sb_get_from_info(devlink, info); | |
3176 | if (IS_ERR(devlink_sb)) | |
3177 | return PTR_ERR(devlink_sb); | |
df38dafd | 3178 | |
be6fe1d8 | 3179 | if (ops->sb_occ_snapshot) |
df38dafd JP |
3180 | return ops->sb_occ_snapshot(devlink, devlink_sb->index); |
3181 | return -EOPNOTSUPP; | |
3182 | } | |
3183 | ||
3184 | static int devlink_nl_cmd_sb_occ_max_clear_doit(struct sk_buff *skb, | |
3185 | struct genl_info *info) | |
3186 | { | |
3187 | struct devlink *devlink = info->user_ptr[0]; | |
df38dafd | 3188 | const struct devlink_ops *ops = devlink->ops; |
637989b5 PP |
3189 | struct devlink_sb *devlink_sb; |
3190 | ||
3191 | devlink_sb = devlink_sb_get_from_info(devlink, info); | |
3192 | if (IS_ERR(devlink_sb)) | |
3193 | return PTR_ERR(devlink_sb); | |
df38dafd | 3194 | |
be6fe1d8 | 3195 | if (ops->sb_occ_max_clear) |
df38dafd JP |
3196 | return ops->sb_occ_max_clear(devlink, devlink_sb->index); |
3197 | return -EOPNOTSUPP; | |
3198 | } | |
3199 | ||
21e3d2dd JP |
3200 | static int devlink_nl_eswitch_fill(struct sk_buff *msg, struct devlink *devlink, |
3201 | enum devlink_command cmd, u32 portid, | |
3202 | u32 seq, int flags) | |
08f4b591 | 3203 | { |
59bfde01 | 3204 | const struct devlink_ops *ops = devlink->ops; |
98fdbea5 LR |
3205 | enum devlink_eswitch_encap_mode encap_mode; |
3206 | u8 inline_mode; | |
08f4b591 | 3207 | void *hdr; |
59bfde01 RD |
3208 | int err = 0; |
3209 | u16 mode; | |
08f4b591 OG |
3210 | |
3211 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
3212 | if (!hdr) | |
3213 | return -EMSGSIZE; | |
3214 | ||
59bfde01 RD |
3215 | err = devlink_nl_put_handle(msg, devlink); |
3216 | if (err) | |
1a6aa36b | 3217 | goto nla_put_failure; |
08f4b591 | 3218 | |
4456f61c JP |
3219 | if (ops->eswitch_mode_get) { |
3220 | err = ops->eswitch_mode_get(devlink, &mode); | |
3221 | if (err) | |
3222 | goto nla_put_failure; | |
3223 | err = nla_put_u16(msg, DEVLINK_ATTR_ESWITCH_MODE, mode); | |
3224 | if (err) | |
3225 | goto nla_put_failure; | |
3226 | } | |
59bfde01 RD |
3227 | |
3228 | if (ops->eswitch_inline_mode_get) { | |
3229 | err = ops->eswitch_inline_mode_get(devlink, &inline_mode); | |
3230 | if (err) | |
1a6aa36b | 3231 | goto nla_put_failure; |
59bfde01 RD |
3232 | err = nla_put_u8(msg, DEVLINK_ATTR_ESWITCH_INLINE_MODE, |
3233 | inline_mode); | |
3234 | if (err) | |
1a6aa36b | 3235 | goto nla_put_failure; |
59bfde01 | 3236 | } |
08f4b591 | 3237 | |
f43e9b06 RD |
3238 | if (ops->eswitch_encap_mode_get) { |
3239 | err = ops->eswitch_encap_mode_get(devlink, &encap_mode); | |
3240 | if (err) | |
3241 | goto nla_put_failure; | |
3242 | err = nla_put_u8(msg, DEVLINK_ATTR_ESWITCH_ENCAP_MODE, encap_mode); | |
3243 | if (err) | |
3244 | goto nla_put_failure; | |
3245 | } | |
3246 | ||
08f4b591 OG |
3247 | genlmsg_end(msg, hdr); |
3248 | return 0; | |
3249 | ||
1a6aa36b | 3250 | nla_put_failure: |
08f4b591 | 3251 | genlmsg_cancel(msg, hdr); |
59bfde01 | 3252 | return err; |
08f4b591 OG |
3253 | } |
3254 | ||
adf200f3 JP |
3255 | static int devlink_nl_cmd_eswitch_get_doit(struct sk_buff *skb, |
3256 | struct genl_info *info) | |
08f4b591 OG |
3257 | { |
3258 | struct devlink *devlink = info->user_ptr[0]; | |
08f4b591 | 3259 | struct sk_buff *msg; |
08f4b591 OG |
3260 | int err; |
3261 | ||
08f4b591 OG |
3262 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
3263 | if (!msg) | |
3264 | return -ENOMEM; | |
3265 | ||
21e3d2dd JP |
3266 | err = devlink_nl_eswitch_fill(msg, devlink, DEVLINK_CMD_ESWITCH_GET, |
3267 | info->snd_portid, info->snd_seq, 0); | |
08f4b591 OG |
3268 | |
3269 | if (err) { | |
3270 | nlmsg_free(msg); | |
3271 | return err; | |
3272 | } | |
3273 | ||
3274 | return genlmsg_reply(msg, info); | |
3275 | } | |
3276 | ||
a8ecb93e DL |
3277 | static int devlink_rate_nodes_check(struct devlink *devlink, u16 mode, |
3278 | struct netlink_ext_ack *extack) | |
3279 | { | |
3280 | struct devlink_rate *devlink_rate; | |
a8ecb93e DL |
3281 | |
3282 | list_for_each_entry(devlink_rate, &devlink->rate_list, list) | |
3283 | if (devlink_rate_is_node(devlink_rate)) { | |
3284 | NL_SET_ERR_MSG_MOD(extack, "Rate node(s) exists."); | |
3285 | return -EBUSY; | |
3286 | } | |
3287 | return 0; | |
3288 | } | |
3289 | ||
adf200f3 JP |
3290 | static int devlink_nl_cmd_eswitch_set_doit(struct sk_buff *skb, |
3291 | struct genl_info *info) | |
08f4b591 OG |
3292 | { |
3293 | struct devlink *devlink = info->user_ptr[0]; | |
3294 | const struct devlink_ops *ops = devlink->ops; | |
98fdbea5 LR |
3295 | enum devlink_eswitch_encap_mode encap_mode; |
3296 | u8 inline_mode; | |
59bfde01 | 3297 | int err = 0; |
f43e9b06 | 3298 | u16 mode; |
08f4b591 | 3299 | |
59bfde01 RD |
3300 | if (info->attrs[DEVLINK_ATTR_ESWITCH_MODE]) { |
3301 | if (!ops->eswitch_mode_set) | |
3302 | return -EOPNOTSUPP; | |
3303 | mode = nla_get_u16(info->attrs[DEVLINK_ATTR_ESWITCH_MODE]); | |
a8ecb93e DL |
3304 | err = devlink_rate_nodes_check(devlink, mode, info->extack); |
3305 | if (err) | |
3306 | return err; | |
db7ff19e | 3307 | err = ops->eswitch_mode_set(devlink, mode, info->extack); |
59bfde01 RD |
3308 | if (err) |
3309 | return err; | |
3310 | } | |
08f4b591 | 3311 | |
59bfde01 RD |
3312 | if (info->attrs[DEVLINK_ATTR_ESWITCH_INLINE_MODE]) { |
3313 | if (!ops->eswitch_inline_mode_set) | |
3314 | return -EOPNOTSUPP; | |
3315 | inline_mode = nla_get_u8( | |
3316 | info->attrs[DEVLINK_ATTR_ESWITCH_INLINE_MODE]); | |
db7ff19e EB |
3317 | err = ops->eswitch_inline_mode_set(devlink, inline_mode, |
3318 | info->extack); | |
59bfde01 RD |
3319 | if (err) |
3320 | return err; | |
3321 | } | |
f43e9b06 RD |
3322 | |
3323 | if (info->attrs[DEVLINK_ATTR_ESWITCH_ENCAP_MODE]) { | |
3324 | if (!ops->eswitch_encap_mode_set) | |
3325 | return -EOPNOTSUPP; | |
3326 | encap_mode = nla_get_u8(info->attrs[DEVLINK_ATTR_ESWITCH_ENCAP_MODE]); | |
db7ff19e EB |
3327 | err = ops->eswitch_encap_mode_set(devlink, encap_mode, |
3328 | info->extack); | |
f43e9b06 RD |
3329 | if (err) |
3330 | return err; | |
3331 | } | |
3332 | ||
1555d204 AS |
3333 | return 0; |
3334 | } | |
3335 | ||
3336 | int devlink_dpipe_match_put(struct sk_buff *skb, | |
3337 | struct devlink_dpipe_match *match) | |
3338 | { | |
3339 | struct devlink_dpipe_header *header = match->header; | |
3340 | struct devlink_dpipe_field *field = &header->fields[match->field_id]; | |
3341 | struct nlattr *match_attr; | |
3342 | ||
ae0be8de | 3343 | match_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_MATCH); |
1555d204 AS |
3344 | if (!match_attr) |
3345 | return -EMSGSIZE; | |
3346 | ||
3347 | if (nla_put_u32(skb, DEVLINK_ATTR_DPIPE_MATCH_TYPE, match->type) || | |
3348 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_INDEX, match->header_index) || | |
3349 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_ID, header->id) || | |
3350 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_ID, field->id) || | |
3351 | nla_put_u8(skb, DEVLINK_ATTR_DPIPE_HEADER_GLOBAL, header->global)) | |
3352 | goto nla_put_failure; | |
3353 | ||
3354 | nla_nest_end(skb, match_attr); | |
3355 | return 0; | |
3356 | ||
3357 | nla_put_failure: | |
3358 | nla_nest_cancel(skb, match_attr); | |
3359 | return -EMSGSIZE; | |
3360 | } | |
3361 | EXPORT_SYMBOL_GPL(devlink_dpipe_match_put); | |
3362 | ||
3363 | static int devlink_dpipe_matches_put(struct devlink_dpipe_table *table, | |
3364 | struct sk_buff *skb) | |
3365 | { | |
3366 | struct nlattr *matches_attr; | |
3367 | ||
ae0be8de MK |
3368 | matches_attr = nla_nest_start_noflag(skb, |
3369 | DEVLINK_ATTR_DPIPE_TABLE_MATCHES); | |
1555d204 AS |
3370 | if (!matches_attr) |
3371 | return -EMSGSIZE; | |
3372 | ||
3373 | if (table->table_ops->matches_dump(table->priv, skb)) | |
3374 | goto nla_put_failure; | |
3375 | ||
3376 | nla_nest_end(skb, matches_attr); | |
3377 | return 0; | |
3378 | ||
3379 | nla_put_failure: | |
3380 | nla_nest_cancel(skb, matches_attr); | |
3381 | return -EMSGSIZE; | |
3382 | } | |
3383 | ||
3384 | int devlink_dpipe_action_put(struct sk_buff *skb, | |
3385 | struct devlink_dpipe_action *action) | |
3386 | { | |
3387 | struct devlink_dpipe_header *header = action->header; | |
3388 | struct devlink_dpipe_field *field = &header->fields[action->field_id]; | |
3389 | struct nlattr *action_attr; | |
3390 | ||
ae0be8de | 3391 | action_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_ACTION); |
1555d204 AS |
3392 | if (!action_attr) |
3393 | return -EMSGSIZE; | |
3394 | ||
3395 | if (nla_put_u32(skb, DEVLINK_ATTR_DPIPE_ACTION_TYPE, action->type) || | |
3396 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_INDEX, action->header_index) || | |
3397 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_ID, header->id) || | |
3398 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_ID, field->id) || | |
3399 | nla_put_u8(skb, DEVLINK_ATTR_DPIPE_HEADER_GLOBAL, header->global)) | |
3400 | goto nla_put_failure; | |
3401 | ||
3402 | nla_nest_end(skb, action_attr); | |
3403 | return 0; | |
3404 | ||
3405 | nla_put_failure: | |
3406 | nla_nest_cancel(skb, action_attr); | |
3407 | return -EMSGSIZE; | |
3408 | } | |
3409 | EXPORT_SYMBOL_GPL(devlink_dpipe_action_put); | |
3410 | ||
3411 | static int devlink_dpipe_actions_put(struct devlink_dpipe_table *table, | |
3412 | struct sk_buff *skb) | |
3413 | { | |
3414 | struct nlattr *actions_attr; | |
3415 | ||
ae0be8de MK |
3416 | actions_attr = nla_nest_start_noflag(skb, |
3417 | DEVLINK_ATTR_DPIPE_TABLE_ACTIONS); | |
1555d204 AS |
3418 | if (!actions_attr) |
3419 | return -EMSGSIZE; | |
3420 | ||
3421 | if (table->table_ops->actions_dump(table->priv, skb)) | |
3422 | goto nla_put_failure; | |
3423 | ||
3424 | nla_nest_end(skb, actions_attr); | |
3425 | return 0; | |
3426 | ||
3427 | nla_put_failure: | |
3428 | nla_nest_cancel(skb, actions_attr); | |
3429 | return -EMSGSIZE; | |
3430 | } | |
3431 | ||
3432 | static int devlink_dpipe_table_put(struct sk_buff *skb, | |
3433 | struct devlink_dpipe_table *table) | |
3434 | { | |
3435 | struct nlattr *table_attr; | |
ffd3cdcc | 3436 | u64 table_size; |
1555d204 | 3437 | |
ffd3cdcc | 3438 | table_size = table->table_ops->size_get(table->priv); |
ae0be8de | 3439 | table_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_TABLE); |
1555d204 AS |
3440 | if (!table_attr) |
3441 | return -EMSGSIZE; | |
3442 | ||
3443 | if (nla_put_string(skb, DEVLINK_ATTR_DPIPE_TABLE_NAME, table->name) || | |
ffd3cdcc | 3444 | nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_TABLE_SIZE, table_size, |
1555d204 AS |
3445 | DEVLINK_ATTR_PAD)) |
3446 | goto nla_put_failure; | |
3447 | if (nla_put_u8(skb, DEVLINK_ATTR_DPIPE_TABLE_COUNTERS_ENABLED, | |
3448 | table->counters_enabled)) | |
3449 | goto nla_put_failure; | |
3450 | ||
56dc7cd0 | 3451 | if (table->resource_valid) { |
3d18e4f1 AS |
3452 | if (nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_TABLE_RESOURCE_ID, |
3453 | table->resource_id, DEVLINK_ATTR_PAD) || | |
3454 | nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_TABLE_RESOURCE_UNITS, | |
3455 | table->resource_units, DEVLINK_ATTR_PAD)) | |
3456 | goto nla_put_failure; | |
56dc7cd0 | 3457 | } |
1555d204 AS |
3458 | if (devlink_dpipe_matches_put(table, skb)) |
3459 | goto nla_put_failure; | |
3460 | ||
3461 | if (devlink_dpipe_actions_put(table, skb)) | |
3462 | goto nla_put_failure; | |
3463 | ||
3464 | nla_nest_end(skb, table_attr); | |
3465 | return 0; | |
3466 | ||
3467 | nla_put_failure: | |
3468 | nla_nest_cancel(skb, table_attr); | |
3469 | return -EMSGSIZE; | |
3470 | } | |
3471 | ||
3472 | static int devlink_dpipe_send_and_alloc_skb(struct sk_buff **pskb, | |
3473 | struct genl_info *info) | |
3474 | { | |
3475 | int err; | |
3476 | ||
3477 | if (*pskb) { | |
3478 | err = genlmsg_reply(*pskb, info); | |
3479 | if (err) | |
3480 | return err; | |
3481 | } | |
3482 | *pskb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
3483 | if (!*pskb) | |
3484 | return -ENOMEM; | |
3485 | return 0; | |
3486 | } | |
3487 | ||
3488 | static int devlink_dpipe_tables_fill(struct genl_info *info, | |
3489 | enum devlink_command cmd, int flags, | |
3490 | struct list_head *dpipe_tables, | |
3491 | const char *table_name) | |
3492 | { | |
3493 | struct devlink *devlink = info->user_ptr[0]; | |
3494 | struct devlink_dpipe_table *table; | |
3495 | struct nlattr *tables_attr; | |
3496 | struct sk_buff *skb = NULL; | |
3497 | struct nlmsghdr *nlh; | |
3498 | bool incomplete; | |
3499 | void *hdr; | |
3500 | int i; | |
3501 | int err; | |
3502 | ||
3503 | table = list_first_entry(dpipe_tables, | |
3504 | struct devlink_dpipe_table, list); | |
3505 | start_again: | |
3506 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); | |
3507 | if (err) | |
3508 | return err; | |
3509 | ||
3510 | hdr = genlmsg_put(skb, info->snd_portid, info->snd_seq, | |
3511 | &devlink_nl_family, NLM_F_MULTI, cmd); | |
6044bd4a HY |
3512 | if (!hdr) { |
3513 | nlmsg_free(skb); | |
1555d204 | 3514 | return -EMSGSIZE; |
6044bd4a | 3515 | } |
1555d204 AS |
3516 | |
3517 | if (devlink_nl_put_handle(skb, devlink)) | |
3518 | goto nla_put_failure; | |
ae0be8de | 3519 | tables_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_TABLES); |
1555d204 AS |
3520 | if (!tables_attr) |
3521 | goto nla_put_failure; | |
3522 | ||
3523 | i = 0; | |
3524 | incomplete = false; | |
3525 | list_for_each_entry_from(table, dpipe_tables, list) { | |
3526 | if (!table_name) { | |
3527 | err = devlink_dpipe_table_put(skb, table); | |
3528 | if (err) { | |
3529 | if (!i) | |
3530 | goto err_table_put; | |
3531 | incomplete = true; | |
3532 | break; | |
3533 | } | |
3534 | } else { | |
3535 | if (!strcmp(table->name, table_name)) { | |
3536 | err = devlink_dpipe_table_put(skb, table); | |
3537 | if (err) | |
3538 | break; | |
3539 | } | |
3540 | } | |
3541 | i++; | |
3542 | } | |
3543 | ||
3544 | nla_nest_end(skb, tables_attr); | |
3545 | genlmsg_end(skb, hdr); | |
3546 | if (incomplete) | |
3547 | goto start_again; | |
3548 | ||
3549 | send_done: | |
3550 | nlh = nlmsg_put(skb, info->snd_portid, info->snd_seq, | |
3551 | NLMSG_DONE, 0, flags | NLM_F_MULTI); | |
3552 | if (!nlh) { | |
3553 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); | |
3554 | if (err) | |
7fe4d6dc | 3555 | return err; |
1555d204 AS |
3556 | goto send_done; |
3557 | } | |
3558 | ||
3559 | return genlmsg_reply(skb, info); | |
3560 | ||
3561 | nla_put_failure: | |
3562 | err = -EMSGSIZE; | |
3563 | err_table_put: | |
1555d204 AS |
3564 | nlmsg_free(skb); |
3565 | return err; | |
3566 | } | |
3567 | ||
3568 | static int devlink_nl_cmd_dpipe_table_get(struct sk_buff *skb, | |
3569 | struct genl_info *info) | |
3570 | { | |
3571 | struct devlink *devlink = info->user_ptr[0]; | |
3572 | const char *table_name = NULL; | |
3573 | ||
3574 | if (info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME]) | |
3575 | table_name = nla_data(info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME]); | |
3576 | ||
3577 | return devlink_dpipe_tables_fill(info, DEVLINK_CMD_DPIPE_TABLE_GET, 0, | |
3578 | &devlink->dpipe_table_list, | |
3579 | table_name); | |
3580 | } | |
3581 | ||
3582 | static int devlink_dpipe_value_put(struct sk_buff *skb, | |
3583 | struct devlink_dpipe_value *value) | |
3584 | { | |
3585 | if (nla_put(skb, DEVLINK_ATTR_DPIPE_VALUE, | |
3586 | value->value_size, value->value)) | |
3587 | return -EMSGSIZE; | |
3588 | if (value->mask) | |
3589 | if (nla_put(skb, DEVLINK_ATTR_DPIPE_VALUE_MASK, | |
3590 | value->value_size, value->mask)) | |
3591 | return -EMSGSIZE; | |
3592 | if (value->mapping_valid) | |
3593 | if (nla_put_u32(skb, DEVLINK_ATTR_DPIPE_VALUE_MAPPING, | |
3594 | value->mapping_value)) | |
3595 | return -EMSGSIZE; | |
3596 | return 0; | |
3597 | } | |
3598 | ||
3599 | static int devlink_dpipe_action_value_put(struct sk_buff *skb, | |
3600 | struct devlink_dpipe_value *value) | |
3601 | { | |
3602 | if (!value->action) | |
3603 | return -EINVAL; | |
3604 | if (devlink_dpipe_action_put(skb, value->action)) | |
3605 | return -EMSGSIZE; | |
3606 | if (devlink_dpipe_value_put(skb, value)) | |
3607 | return -EMSGSIZE; | |
3608 | return 0; | |
3609 | } | |
3610 | ||
3611 | static int devlink_dpipe_action_values_put(struct sk_buff *skb, | |
3612 | struct devlink_dpipe_value *values, | |
3613 | unsigned int values_count) | |
3614 | { | |
3615 | struct nlattr *action_attr; | |
3616 | int i; | |
3617 | int err; | |
3618 | ||
3619 | for (i = 0; i < values_count; i++) { | |
ae0be8de MK |
3620 | action_attr = nla_nest_start_noflag(skb, |
3621 | DEVLINK_ATTR_DPIPE_ACTION_VALUE); | |
1555d204 AS |
3622 | if (!action_attr) |
3623 | return -EMSGSIZE; | |
3624 | err = devlink_dpipe_action_value_put(skb, &values[i]); | |
3625 | if (err) | |
3626 | goto err_action_value_put; | |
3627 | nla_nest_end(skb, action_attr); | |
3628 | } | |
3629 | return 0; | |
3630 | ||
3631 | err_action_value_put: | |
3632 | nla_nest_cancel(skb, action_attr); | |
3633 | return err; | |
3634 | } | |
3635 | ||
3636 | static int devlink_dpipe_match_value_put(struct sk_buff *skb, | |
3637 | struct devlink_dpipe_value *value) | |
3638 | { | |
3639 | if (!value->match) | |
3640 | return -EINVAL; | |
3641 | if (devlink_dpipe_match_put(skb, value->match)) | |
3642 | return -EMSGSIZE; | |
3643 | if (devlink_dpipe_value_put(skb, value)) | |
3644 | return -EMSGSIZE; | |
3645 | return 0; | |
3646 | } | |
3647 | ||
3648 | static int devlink_dpipe_match_values_put(struct sk_buff *skb, | |
3649 | struct devlink_dpipe_value *values, | |
3650 | unsigned int values_count) | |
3651 | { | |
3652 | struct nlattr *match_attr; | |
3653 | int i; | |
3654 | int err; | |
3655 | ||
3656 | for (i = 0; i < values_count; i++) { | |
ae0be8de MK |
3657 | match_attr = nla_nest_start_noflag(skb, |
3658 | DEVLINK_ATTR_DPIPE_MATCH_VALUE); | |
1555d204 AS |
3659 | if (!match_attr) |
3660 | return -EMSGSIZE; | |
3661 | err = devlink_dpipe_match_value_put(skb, &values[i]); | |
3662 | if (err) | |
3663 | goto err_match_value_put; | |
3664 | nla_nest_end(skb, match_attr); | |
3665 | } | |
3666 | return 0; | |
3667 | ||
3668 | err_match_value_put: | |
3669 | nla_nest_cancel(skb, match_attr); | |
3670 | return err; | |
3671 | } | |
3672 | ||
3673 | static int devlink_dpipe_entry_put(struct sk_buff *skb, | |
3674 | struct devlink_dpipe_entry *entry) | |
3675 | { | |
3676 | struct nlattr *entry_attr, *matches_attr, *actions_attr; | |
3677 | int err; | |
3678 | ||
ae0be8de | 3679 | entry_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_ENTRY); |
1555d204 AS |
3680 | if (!entry_attr) |
3681 | return -EMSGSIZE; | |
3682 | ||
3683 | if (nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_ENTRY_INDEX, entry->index, | |
3684 | DEVLINK_ATTR_PAD)) | |
3685 | goto nla_put_failure; | |
3686 | if (entry->counter_valid) | |
3687 | if (nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_ENTRY_COUNTER, | |
3688 | entry->counter, DEVLINK_ATTR_PAD)) | |
3689 | goto nla_put_failure; | |
3690 | ||
ae0be8de MK |
3691 | matches_attr = nla_nest_start_noflag(skb, |
3692 | DEVLINK_ATTR_DPIPE_ENTRY_MATCH_VALUES); | |
1555d204 AS |
3693 | if (!matches_attr) |
3694 | goto nla_put_failure; | |
3695 | ||
3696 | err = devlink_dpipe_match_values_put(skb, entry->match_values, | |
3697 | entry->match_values_count); | |
3698 | if (err) { | |
3699 | nla_nest_cancel(skb, matches_attr); | |
3700 | goto err_match_values_put; | |
3701 | } | |
3702 | nla_nest_end(skb, matches_attr); | |
3703 | ||
ae0be8de MK |
3704 | actions_attr = nla_nest_start_noflag(skb, |
3705 | DEVLINK_ATTR_DPIPE_ENTRY_ACTION_VALUES); | |
1555d204 AS |
3706 | if (!actions_attr) |
3707 | goto nla_put_failure; | |
3708 | ||
3709 | err = devlink_dpipe_action_values_put(skb, entry->action_values, | |
3710 | entry->action_values_count); | |
3711 | if (err) { | |
3712 | nla_nest_cancel(skb, actions_attr); | |
3713 | goto err_action_values_put; | |
3714 | } | |
3715 | nla_nest_end(skb, actions_attr); | |
59bfde01 | 3716 | |
1555d204 | 3717 | nla_nest_end(skb, entry_attr); |
59bfde01 | 3718 | return 0; |
1555d204 AS |
3719 | |
3720 | nla_put_failure: | |
3721 | err = -EMSGSIZE; | |
3722 | err_match_values_put: | |
3723 | err_action_values_put: | |
3724 | nla_nest_cancel(skb, entry_attr); | |
3725 | return err; | |
3726 | } | |
3727 | ||
3728 | static struct devlink_dpipe_table * | |
3729 | devlink_dpipe_table_find(struct list_head *dpipe_tables, | |
2eb51c75 | 3730 | const char *table_name, struct devlink *devlink) |
1555d204 AS |
3731 | { |
3732 | struct devlink_dpipe_table *table; | |
2eb51c75 MB |
3733 | list_for_each_entry_rcu(table, dpipe_tables, list, |
3734 | lockdep_is_held(&devlink->lock)) { | |
1555d204 AS |
3735 | if (!strcmp(table->name, table_name)) |
3736 | return table; | |
3737 | } | |
3738 | return NULL; | |
3739 | } | |
3740 | ||
3741 | int devlink_dpipe_entry_ctx_prepare(struct devlink_dpipe_dump_ctx *dump_ctx) | |
3742 | { | |
3743 | struct devlink *devlink; | |
3744 | int err; | |
3745 | ||
3746 | err = devlink_dpipe_send_and_alloc_skb(&dump_ctx->skb, | |
3747 | dump_ctx->info); | |
3748 | if (err) | |
3749 | return err; | |
3750 | ||
3751 | dump_ctx->hdr = genlmsg_put(dump_ctx->skb, | |
3752 | dump_ctx->info->snd_portid, | |
3753 | dump_ctx->info->snd_seq, | |
3754 | &devlink_nl_family, NLM_F_MULTI, | |
3755 | dump_ctx->cmd); | |
3756 | if (!dump_ctx->hdr) | |
3757 | goto nla_put_failure; | |
3758 | ||
3759 | devlink = dump_ctx->info->user_ptr[0]; | |
3760 | if (devlink_nl_put_handle(dump_ctx->skb, devlink)) | |
3761 | goto nla_put_failure; | |
ae0be8de MK |
3762 | dump_ctx->nest = nla_nest_start_noflag(dump_ctx->skb, |
3763 | DEVLINK_ATTR_DPIPE_ENTRIES); | |
1555d204 AS |
3764 | if (!dump_ctx->nest) |
3765 | goto nla_put_failure; | |
3766 | return 0; | |
3767 | ||
3768 | nla_put_failure: | |
1555d204 AS |
3769 | nlmsg_free(dump_ctx->skb); |
3770 | return -EMSGSIZE; | |
3771 | } | |
3772 | EXPORT_SYMBOL_GPL(devlink_dpipe_entry_ctx_prepare); | |
3773 | ||
3774 | int devlink_dpipe_entry_ctx_append(struct devlink_dpipe_dump_ctx *dump_ctx, | |
3775 | struct devlink_dpipe_entry *entry) | |
3776 | { | |
3777 | return devlink_dpipe_entry_put(dump_ctx->skb, entry); | |
3778 | } | |
3779 | EXPORT_SYMBOL_GPL(devlink_dpipe_entry_ctx_append); | |
3780 | ||
3781 | int devlink_dpipe_entry_ctx_close(struct devlink_dpipe_dump_ctx *dump_ctx) | |
3782 | { | |
3783 | nla_nest_end(dump_ctx->skb, dump_ctx->nest); | |
3784 | genlmsg_end(dump_ctx->skb, dump_ctx->hdr); | |
3785 | return 0; | |
3786 | } | |
3787 | EXPORT_SYMBOL_GPL(devlink_dpipe_entry_ctx_close); | |
3788 | ||
35807324 AS |
3789 | void devlink_dpipe_entry_clear(struct devlink_dpipe_entry *entry) |
3790 | ||
3791 | { | |
3792 | unsigned int value_count, value_index; | |
3793 | struct devlink_dpipe_value *value; | |
3794 | ||
3795 | value = entry->action_values; | |
3796 | value_count = entry->action_values_count; | |
3797 | for (value_index = 0; value_index < value_count; value_index++) { | |
3798 | kfree(value[value_index].value); | |
3799 | kfree(value[value_index].mask); | |
3800 | } | |
3801 | ||
3802 | value = entry->match_values; | |
3803 | value_count = entry->match_values_count; | |
3804 | for (value_index = 0; value_index < value_count; value_index++) { | |
3805 | kfree(value[value_index].value); | |
3806 | kfree(value[value_index].mask); | |
3807 | } | |
3808 | } | |
c52ef04d | 3809 | EXPORT_SYMBOL_GPL(devlink_dpipe_entry_clear); |
35807324 | 3810 | |
1555d204 AS |
3811 | static int devlink_dpipe_entries_fill(struct genl_info *info, |
3812 | enum devlink_command cmd, int flags, | |
3813 | struct devlink_dpipe_table *table) | |
3814 | { | |
3815 | struct devlink_dpipe_dump_ctx dump_ctx; | |
3816 | struct nlmsghdr *nlh; | |
3817 | int err; | |
3818 | ||
3819 | dump_ctx.skb = NULL; | |
3820 | dump_ctx.cmd = cmd; | |
3821 | dump_ctx.info = info; | |
3822 | ||
3823 | err = table->table_ops->entries_dump(table->priv, | |
3824 | table->counters_enabled, | |
3825 | &dump_ctx); | |
3826 | if (err) | |
7fe4d6dc | 3827 | return err; |
1555d204 AS |
3828 | |
3829 | send_done: | |
3830 | nlh = nlmsg_put(dump_ctx.skb, info->snd_portid, info->snd_seq, | |
3831 | NLMSG_DONE, 0, flags | NLM_F_MULTI); | |
3832 | if (!nlh) { | |
3833 | err = devlink_dpipe_send_and_alloc_skb(&dump_ctx.skb, info); | |
3834 | if (err) | |
7fe4d6dc | 3835 | return err; |
1555d204 AS |
3836 | goto send_done; |
3837 | } | |
3838 | return genlmsg_reply(dump_ctx.skb, info); | |
1555d204 AS |
3839 | } |
3840 | ||
3841 | static int devlink_nl_cmd_dpipe_entries_get(struct sk_buff *skb, | |
3842 | struct genl_info *info) | |
3843 | { | |
3844 | struct devlink *devlink = info->user_ptr[0]; | |
3845 | struct devlink_dpipe_table *table; | |
3846 | const char *table_name; | |
3847 | ||
3848 | if (!info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME]) | |
3849 | return -EINVAL; | |
3850 | ||
3851 | table_name = nla_data(info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME]); | |
3852 | table = devlink_dpipe_table_find(&devlink->dpipe_table_list, | |
2eb51c75 | 3853 | table_name, devlink); |
1555d204 AS |
3854 | if (!table) |
3855 | return -EINVAL; | |
3856 | ||
3857 | if (!table->table_ops->entries_dump) | |
3858 | return -EINVAL; | |
3859 | ||
3860 | return devlink_dpipe_entries_fill(info, DEVLINK_CMD_DPIPE_ENTRIES_GET, | |
3861 | 0, table); | |
3862 | } | |
3863 | ||
3864 | static int devlink_dpipe_fields_put(struct sk_buff *skb, | |
3865 | const struct devlink_dpipe_header *header) | |
3866 | { | |
3867 | struct devlink_dpipe_field *field; | |
3868 | struct nlattr *field_attr; | |
3869 | int i; | |
3870 | ||
3871 | for (i = 0; i < header->fields_count; i++) { | |
3872 | field = &header->fields[i]; | |
ae0be8de MK |
3873 | field_attr = nla_nest_start_noflag(skb, |
3874 | DEVLINK_ATTR_DPIPE_FIELD); | |
1555d204 AS |
3875 | if (!field_attr) |
3876 | return -EMSGSIZE; | |
3877 | if (nla_put_string(skb, DEVLINK_ATTR_DPIPE_FIELD_NAME, field->name) || | |
3878 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_ID, field->id) || | |
3879 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_BITWIDTH, field->bitwidth) || | |
3880 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_MAPPING_TYPE, field->mapping_type)) | |
3881 | goto nla_put_failure; | |
3882 | nla_nest_end(skb, field_attr); | |
3883 | } | |
3884 | return 0; | |
3885 | ||
3886 | nla_put_failure: | |
3887 | nla_nest_cancel(skb, field_attr); | |
3888 | return -EMSGSIZE; | |
3889 | } | |
3890 | ||
3891 | static int devlink_dpipe_header_put(struct sk_buff *skb, | |
3892 | struct devlink_dpipe_header *header) | |
3893 | { | |
3894 | struct nlattr *fields_attr, *header_attr; | |
3895 | int err; | |
3896 | ||
ae0be8de | 3897 | header_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_HEADER); |
cb6bf9cf | 3898 | if (!header_attr) |
1555d204 AS |
3899 | return -EMSGSIZE; |
3900 | ||
3901 | if (nla_put_string(skb, DEVLINK_ATTR_DPIPE_HEADER_NAME, header->name) || | |
3902 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_ID, header->id) || | |
3903 | nla_put_u8(skb, DEVLINK_ATTR_DPIPE_HEADER_GLOBAL, header->global)) | |
3904 | goto nla_put_failure; | |
3905 | ||
ae0be8de MK |
3906 | fields_attr = nla_nest_start_noflag(skb, |
3907 | DEVLINK_ATTR_DPIPE_HEADER_FIELDS); | |
1555d204 AS |
3908 | if (!fields_attr) |
3909 | goto nla_put_failure; | |
3910 | ||
3911 | err = devlink_dpipe_fields_put(skb, header); | |
3912 | if (err) { | |
3913 | nla_nest_cancel(skb, fields_attr); | |
3914 | goto nla_put_failure; | |
3915 | } | |
3916 | nla_nest_end(skb, fields_attr); | |
3917 | nla_nest_end(skb, header_attr); | |
3918 | return 0; | |
3919 | ||
3920 | nla_put_failure: | |
3921 | err = -EMSGSIZE; | |
3922 | nla_nest_cancel(skb, header_attr); | |
3923 | return err; | |
3924 | } | |
3925 | ||
3926 | static int devlink_dpipe_headers_fill(struct genl_info *info, | |
3927 | enum devlink_command cmd, int flags, | |
3928 | struct devlink_dpipe_headers * | |
3929 | dpipe_headers) | |
3930 | { | |
3931 | struct devlink *devlink = info->user_ptr[0]; | |
3932 | struct nlattr *headers_attr; | |
3933 | struct sk_buff *skb = NULL; | |
3934 | struct nlmsghdr *nlh; | |
3935 | void *hdr; | |
3936 | int i, j; | |
3937 | int err; | |
3938 | ||
3939 | i = 0; | |
3940 | start_again: | |
3941 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); | |
3942 | if (err) | |
3943 | return err; | |
3944 | ||
3945 | hdr = genlmsg_put(skb, info->snd_portid, info->snd_seq, | |
3946 | &devlink_nl_family, NLM_F_MULTI, cmd); | |
6044bd4a HY |
3947 | if (!hdr) { |
3948 | nlmsg_free(skb); | |
1555d204 | 3949 | return -EMSGSIZE; |
6044bd4a | 3950 | } |
1555d204 AS |
3951 | |
3952 | if (devlink_nl_put_handle(skb, devlink)) | |
3953 | goto nla_put_failure; | |
ae0be8de | 3954 | headers_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_HEADERS); |
1555d204 AS |
3955 | if (!headers_attr) |
3956 | goto nla_put_failure; | |
3957 | ||
3958 | j = 0; | |
3959 | for (; i < dpipe_headers->headers_count; i++) { | |
3960 | err = devlink_dpipe_header_put(skb, dpipe_headers->headers[i]); | |
3961 | if (err) { | |
3962 | if (!j) | |
3963 | goto err_table_put; | |
3964 | break; | |
3965 | } | |
3966 | j++; | |
3967 | } | |
3968 | nla_nest_end(skb, headers_attr); | |
3969 | genlmsg_end(skb, hdr); | |
3970 | if (i != dpipe_headers->headers_count) | |
3971 | goto start_again; | |
3972 | ||
3973 | send_done: | |
3974 | nlh = nlmsg_put(skb, info->snd_portid, info->snd_seq, | |
3975 | NLMSG_DONE, 0, flags | NLM_F_MULTI); | |
3976 | if (!nlh) { | |
3977 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); | |
3978 | if (err) | |
7fe4d6dc | 3979 | return err; |
1555d204 AS |
3980 | goto send_done; |
3981 | } | |
3982 | return genlmsg_reply(skb, info); | |
3983 | ||
3984 | nla_put_failure: | |
3985 | err = -EMSGSIZE; | |
3986 | err_table_put: | |
1555d204 AS |
3987 | nlmsg_free(skb); |
3988 | return err; | |
3989 | } | |
3990 | ||
3991 | static int devlink_nl_cmd_dpipe_headers_get(struct sk_buff *skb, | |
3992 | struct genl_info *info) | |
3993 | { | |
3994 | struct devlink *devlink = info->user_ptr[0]; | |
3995 | ||
3996 | if (!devlink->dpipe_headers) | |
3997 | return -EOPNOTSUPP; | |
3998 | return devlink_dpipe_headers_fill(info, DEVLINK_CMD_DPIPE_HEADERS_GET, | |
3999 | 0, devlink->dpipe_headers); | |
4000 | } | |
4001 | ||
4002 | static int devlink_dpipe_table_counters_set(struct devlink *devlink, | |
4003 | const char *table_name, | |
4004 | bool enable) | |
4005 | { | |
4006 | struct devlink_dpipe_table *table; | |
4007 | ||
4008 | table = devlink_dpipe_table_find(&devlink->dpipe_table_list, | |
2eb51c75 | 4009 | table_name, devlink); |
1555d204 AS |
4010 | if (!table) |
4011 | return -EINVAL; | |
4012 | ||
4013 | if (table->counter_control_extern) | |
4014 | return -EOPNOTSUPP; | |
4015 | ||
4016 | if (!(table->counters_enabled ^ enable)) | |
4017 | return 0; | |
4018 | ||
4019 | table->counters_enabled = enable; | |
4020 | if (table->table_ops->counters_set_update) | |
4021 | table->table_ops->counters_set_update(table->priv, enable); | |
4022 | return 0; | |
4023 | } | |
4024 | ||
4025 | static int devlink_nl_cmd_dpipe_table_counters_set(struct sk_buff *skb, | |
4026 | struct genl_info *info) | |
4027 | { | |
4028 | struct devlink *devlink = info->user_ptr[0]; | |
4029 | const char *table_name; | |
4030 | bool counters_enable; | |
4031 | ||
4032 | if (!info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME] || | |
4033 | !info->attrs[DEVLINK_ATTR_DPIPE_TABLE_COUNTERS_ENABLED]) | |
4034 | return -EINVAL; | |
4035 | ||
4036 | table_name = nla_data(info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME]); | |
4037 | counters_enable = !!nla_get_u8(info->attrs[DEVLINK_ATTR_DPIPE_TABLE_COUNTERS_ENABLED]); | |
4038 | ||
4039 | return devlink_dpipe_table_counters_set(devlink, table_name, | |
4040 | counters_enable); | |
08f4b591 OG |
4041 | } |
4042 | ||
43dd7512 | 4043 | static struct devlink_resource * |
d9f9b9a4 AS |
4044 | devlink_resource_find(struct devlink *devlink, |
4045 | struct devlink_resource *resource, u64 resource_id) | |
4046 | { | |
4047 | struct list_head *resource_list; | |
4048 | ||
4049 | if (resource) | |
4050 | resource_list = &resource->resource_list; | |
4051 | else | |
4052 | resource_list = &devlink->resource_list; | |
4053 | ||
4054 | list_for_each_entry(resource, resource_list, list) { | |
4055 | struct devlink_resource *child_resource; | |
4056 | ||
4057 | if (resource->id == resource_id) | |
4058 | return resource; | |
4059 | ||
4060 | child_resource = devlink_resource_find(devlink, resource, | |
4061 | resource_id); | |
4062 | if (child_resource) | |
4063 | return child_resource; | |
4064 | } | |
4065 | return NULL; | |
4066 | } | |
4067 | ||
43dd7512 WY |
4068 | static void |
4069 | devlink_resource_validate_children(struct devlink_resource *resource) | |
d9f9b9a4 AS |
4070 | { |
4071 | struct devlink_resource *child_resource; | |
4072 | bool size_valid = true; | |
4073 | u64 parts_size = 0; | |
4074 | ||
4075 | if (list_empty(&resource->resource_list)) | |
4076 | goto out; | |
4077 | ||
4078 | list_for_each_entry(child_resource, &resource->resource_list, list) | |
4079 | parts_size += child_resource->size_new; | |
4080 | ||
b9d17175 | 4081 | if (parts_size > resource->size_new) |
d9f9b9a4 AS |
4082 | size_valid = false; |
4083 | out: | |
4084 | resource->size_valid = size_valid; | |
4085 | } | |
4086 | ||
cc944ead AS |
4087 | static int |
4088 | devlink_resource_validate_size(struct devlink_resource *resource, u64 size, | |
4089 | struct netlink_ext_ack *extack) | |
4090 | { | |
4091 | u64 reminder; | |
4092 | int err = 0; | |
4093 | ||
0f3e9c97 | 4094 | if (size > resource->size_params.size_max) { |
cc944ead AS |
4095 | NL_SET_ERR_MSG_MOD(extack, "Size larger than maximum"); |
4096 | err = -EINVAL; | |
4097 | } | |
4098 | ||
0f3e9c97 | 4099 | if (size < resource->size_params.size_min) { |
cc944ead AS |
4100 | NL_SET_ERR_MSG_MOD(extack, "Size smaller than minimum"); |
4101 | err = -EINVAL; | |
4102 | } | |
4103 | ||
0f3e9c97 | 4104 | div64_u64_rem(size, resource->size_params.size_granularity, &reminder); |
cc944ead AS |
4105 | if (reminder) { |
4106 | NL_SET_ERR_MSG_MOD(extack, "Wrong granularity"); | |
4107 | err = -EINVAL; | |
4108 | } | |
4109 | ||
4110 | return err; | |
4111 | } | |
4112 | ||
d9f9b9a4 AS |
4113 | static int devlink_nl_cmd_resource_set(struct sk_buff *skb, |
4114 | struct genl_info *info) | |
4115 | { | |
4116 | struct devlink *devlink = info->user_ptr[0]; | |
4117 | struct devlink_resource *resource; | |
4118 | u64 resource_id; | |
4119 | u64 size; | |
4120 | int err; | |
4121 | ||
4122 | if (!info->attrs[DEVLINK_ATTR_RESOURCE_ID] || | |
4123 | !info->attrs[DEVLINK_ATTR_RESOURCE_SIZE]) | |
4124 | return -EINVAL; | |
4125 | resource_id = nla_get_u64(info->attrs[DEVLINK_ATTR_RESOURCE_ID]); | |
4126 | ||
4127 | resource = devlink_resource_find(devlink, NULL, resource_id); | |
4128 | if (!resource) | |
4129 | return -EINVAL; | |
4130 | ||
d9f9b9a4 | 4131 | size = nla_get_u64(info->attrs[DEVLINK_ATTR_RESOURCE_SIZE]); |
cc944ead | 4132 | err = devlink_resource_validate_size(resource, size, info->extack); |
d9f9b9a4 AS |
4133 | if (err) |
4134 | return err; | |
4135 | ||
4136 | resource->size_new = size; | |
4137 | devlink_resource_validate_children(resource); | |
4138 | if (resource->parent) | |
4139 | devlink_resource_validate_children(resource->parent); | |
4140 | return 0; | |
4141 | } | |
4142 | ||
3d18e4f1 | 4143 | static int |
d9f9b9a4 AS |
4144 | devlink_resource_size_params_put(struct devlink_resource *resource, |
4145 | struct sk_buff *skb) | |
4146 | { | |
4147 | struct devlink_resource_size_params *size_params; | |
4148 | ||
77d27096 | 4149 | size_params = &resource->size_params; |
3d18e4f1 AS |
4150 | if (nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE_GRAN, |
4151 | size_params->size_granularity, DEVLINK_ATTR_PAD) || | |
4152 | nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE_MAX, | |
4153 | size_params->size_max, DEVLINK_ATTR_PAD) || | |
4154 | nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE_MIN, | |
4155 | size_params->size_min, DEVLINK_ATTR_PAD) || | |
4156 | nla_put_u8(skb, DEVLINK_ATTR_RESOURCE_UNIT, size_params->unit)) | |
4157 | return -EMSGSIZE; | |
4158 | return 0; | |
d9f9b9a4 AS |
4159 | } |
4160 | ||
fc56be47 JP |
4161 | static int devlink_resource_occ_put(struct devlink_resource *resource, |
4162 | struct sk_buff *skb) | |
4163 | { | |
4164 | if (!resource->occ_get) | |
4165 | return 0; | |
4166 | return nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_OCC, | |
4167 | resource->occ_get(resource->occ_get_priv), | |
4168 | DEVLINK_ATTR_PAD); | |
4169 | } | |
4170 | ||
d9f9b9a4 AS |
4171 | static int devlink_resource_put(struct devlink *devlink, struct sk_buff *skb, |
4172 | struct devlink_resource *resource) | |
4173 | { | |
4174 | struct devlink_resource *child_resource; | |
4175 | struct nlattr *child_resource_attr; | |
4176 | struct nlattr *resource_attr; | |
4177 | ||
ae0be8de | 4178 | resource_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_RESOURCE); |
d9f9b9a4 AS |
4179 | if (!resource_attr) |
4180 | return -EMSGSIZE; | |
4181 | ||
4182 | if (nla_put_string(skb, DEVLINK_ATTR_RESOURCE_NAME, resource->name) || | |
4183 | nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE, resource->size, | |
4184 | DEVLINK_ATTR_PAD) || | |
4185 | nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_ID, resource->id, | |
4186 | DEVLINK_ATTR_PAD)) | |
4187 | goto nla_put_failure; | |
4188 | if (resource->size != resource->size_new) | |
4189 | nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE_NEW, | |
4190 | resource->size_new, DEVLINK_ATTR_PAD); | |
fc56be47 JP |
4191 | if (devlink_resource_occ_put(resource, skb)) |
4192 | goto nla_put_failure; | |
3d18e4f1 AS |
4193 | if (devlink_resource_size_params_put(resource, skb)) |
4194 | goto nla_put_failure; | |
d9f9b9a4 AS |
4195 | if (list_empty(&resource->resource_list)) |
4196 | goto out; | |
4197 | ||
4198 | if (nla_put_u8(skb, DEVLINK_ATTR_RESOURCE_SIZE_VALID, | |
4199 | resource->size_valid)) | |
4200 | goto nla_put_failure; | |
4201 | ||
ae0be8de MK |
4202 | child_resource_attr = nla_nest_start_noflag(skb, |
4203 | DEVLINK_ATTR_RESOURCE_LIST); | |
d9f9b9a4 AS |
4204 | if (!child_resource_attr) |
4205 | goto nla_put_failure; | |
4206 | ||
4207 | list_for_each_entry(child_resource, &resource->resource_list, list) { | |
4208 | if (devlink_resource_put(devlink, skb, child_resource)) | |
4209 | goto resource_put_failure; | |
4210 | } | |
4211 | ||
4212 | nla_nest_end(skb, child_resource_attr); | |
4213 | out: | |
4214 | nla_nest_end(skb, resource_attr); | |
4215 | return 0; | |
4216 | ||
4217 | resource_put_failure: | |
4218 | nla_nest_cancel(skb, child_resource_attr); | |
4219 | nla_put_failure: | |
4220 | nla_nest_cancel(skb, resource_attr); | |
4221 | return -EMSGSIZE; | |
4222 | } | |
4223 | ||
4224 | static int devlink_resource_fill(struct genl_info *info, | |
4225 | enum devlink_command cmd, int flags) | |
4226 | { | |
4227 | struct devlink *devlink = info->user_ptr[0]; | |
4228 | struct devlink_resource *resource; | |
4229 | struct nlattr *resources_attr; | |
4230 | struct sk_buff *skb = NULL; | |
4231 | struct nlmsghdr *nlh; | |
4232 | bool incomplete; | |
4233 | void *hdr; | |
4234 | int i; | |
4235 | int err; | |
4236 | ||
4237 | resource = list_first_entry(&devlink->resource_list, | |
4238 | struct devlink_resource, list); | |
4239 | start_again: | |
4240 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); | |
4241 | if (err) | |
4242 | return err; | |
4243 | ||
4244 | hdr = genlmsg_put(skb, info->snd_portid, info->snd_seq, | |
4245 | &devlink_nl_family, NLM_F_MULTI, cmd); | |
4246 | if (!hdr) { | |
4247 | nlmsg_free(skb); | |
4248 | return -EMSGSIZE; | |
4249 | } | |
4250 | ||
4251 | if (devlink_nl_put_handle(skb, devlink)) | |
4252 | goto nla_put_failure; | |
4253 | ||
ae0be8de MK |
4254 | resources_attr = nla_nest_start_noflag(skb, |
4255 | DEVLINK_ATTR_RESOURCE_LIST); | |
d9f9b9a4 AS |
4256 | if (!resources_attr) |
4257 | goto nla_put_failure; | |
4258 | ||
4259 | incomplete = false; | |
4260 | i = 0; | |
4261 | list_for_each_entry_from(resource, &devlink->resource_list, list) { | |
4262 | err = devlink_resource_put(devlink, skb, resource); | |
4263 | if (err) { | |
4264 | if (!i) | |
4265 | goto err_resource_put; | |
4266 | incomplete = true; | |
4267 | break; | |
4268 | } | |
4269 | i++; | |
4270 | } | |
4271 | nla_nest_end(skb, resources_attr); | |
4272 | genlmsg_end(skb, hdr); | |
4273 | if (incomplete) | |
4274 | goto start_again; | |
4275 | send_done: | |
4276 | nlh = nlmsg_put(skb, info->snd_portid, info->snd_seq, | |
4277 | NLMSG_DONE, 0, flags | NLM_F_MULTI); | |
4278 | if (!nlh) { | |
4279 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); | |
4280 | if (err) | |
83fe9a96 | 4281 | return err; |
d9f9b9a4 AS |
4282 | goto send_done; |
4283 | } | |
4284 | return genlmsg_reply(skb, info); | |
4285 | ||
4286 | nla_put_failure: | |
4287 | err = -EMSGSIZE; | |
4288 | err_resource_put: | |
d9f9b9a4 AS |
4289 | nlmsg_free(skb); |
4290 | return err; | |
4291 | } | |
4292 | ||
4293 | static int devlink_nl_cmd_resource_dump(struct sk_buff *skb, | |
4294 | struct genl_info *info) | |
4295 | { | |
4296 | struct devlink *devlink = info->user_ptr[0]; | |
4297 | ||
4298 | if (list_empty(&devlink->resource_list)) | |
4299 | return -EOPNOTSUPP; | |
4300 | ||
4301 | return devlink_resource_fill(info, DEVLINK_CMD_RESOURCE_DUMP, 0); | |
4302 | } | |
4303 | ||
2d8dc5bb AS |
4304 | static int |
4305 | devlink_resources_validate(struct devlink *devlink, | |
4306 | struct devlink_resource *resource, | |
4307 | struct genl_info *info) | |
4308 | { | |
4309 | struct list_head *resource_list; | |
4310 | int err = 0; | |
4311 | ||
4312 | if (resource) | |
4313 | resource_list = &resource->resource_list; | |
4314 | else | |
4315 | resource_list = &devlink->resource_list; | |
4316 | ||
4317 | list_for_each_entry(resource, resource_list, list) { | |
4318 | if (!resource->size_valid) | |
4319 | return -EINVAL; | |
4320 | err = devlink_resources_validate(devlink, resource, info); | |
4321 | if (err) | |
4322 | return err; | |
4323 | } | |
4324 | return err; | |
4325 | } | |
4326 | ||
070c63f2 JP |
4327 | static struct net *devlink_netns_get(struct sk_buff *skb, |
4328 | struct genl_info *info) | |
4329 | { | |
4330 | struct nlattr *netns_pid_attr = info->attrs[DEVLINK_ATTR_NETNS_PID]; | |
4331 | struct nlattr *netns_fd_attr = info->attrs[DEVLINK_ATTR_NETNS_FD]; | |
4332 | struct nlattr *netns_id_attr = info->attrs[DEVLINK_ATTR_NETNS_ID]; | |
4333 | struct net *net; | |
4334 | ||
4335 | if (!!netns_pid_attr + !!netns_fd_attr + !!netns_id_attr > 1) { | |
054eae82 | 4336 | NL_SET_ERR_MSG_MOD(info->extack, "multiple netns identifying attributes specified"); |
070c63f2 JP |
4337 | return ERR_PTR(-EINVAL); |
4338 | } | |
4339 | ||
4340 | if (netns_pid_attr) { | |
4341 | net = get_net_ns_by_pid(nla_get_u32(netns_pid_attr)); | |
4342 | } else if (netns_fd_attr) { | |
4343 | net = get_net_ns_by_fd(nla_get_u32(netns_fd_attr)); | |
4344 | } else if (netns_id_attr) { | |
4345 | net = get_net_ns_by_id(sock_net(skb->sk), | |
4346 | nla_get_u32(netns_id_attr)); | |
4347 | if (!net) | |
4348 | net = ERR_PTR(-EINVAL); | |
4349 | } else { | |
4350 | WARN_ON(1); | |
4351 | net = ERR_PTR(-EINVAL); | |
4352 | } | |
4353 | if (IS_ERR(net)) { | |
054eae82 | 4354 | NL_SET_ERR_MSG_MOD(info->extack, "Unknown network namespace"); |
070c63f2 JP |
4355 | return ERR_PTR(-EINVAL); |
4356 | } | |
4357 | if (!netlink_ns_capable(skb, net->user_ns, CAP_NET_ADMIN)) { | |
4358 | put_net(net); | |
4359 | return ERR_PTR(-EPERM); | |
4360 | } | |
4361 | return net; | |
4362 | } | |
4363 | ||
4364 | static void devlink_param_notify(struct devlink *devlink, | |
4365 | unsigned int port_index, | |
4366 | struct devlink_param_item *param_item, | |
4367 | enum devlink_command cmd); | |
4368 | ||
05a7f4a8 LR |
4369 | static void devlink_ns_change_notify(struct devlink *devlink, |
4370 | struct net *dest_net, struct net *curr_net, | |
4371 | bool new) | |
070c63f2 JP |
4372 | { |
4373 | struct devlink_param_item *param_item; | |
05a7f4a8 | 4374 | enum devlink_command cmd; |
070c63f2 JP |
4375 | |
4376 | /* Userspace needs to be notified about devlink objects | |
4377 | * removed from original and entering new network namespace. | |
4378 | * The rest of the devlink objects are re-created during | |
4379 | * reload process so the notifications are generated separatelly. | |
4380 | */ | |
4381 | ||
05a7f4a8 LR |
4382 | if (!dest_net || net_eq(dest_net, curr_net)) |
4383 | return; | |
070c63f2 | 4384 | |
05a7f4a8 LR |
4385 | if (new) |
4386 | devlink_notify(devlink, DEVLINK_CMD_NEW); | |
070c63f2 | 4387 | |
05a7f4a8 | 4388 | cmd = new ? DEVLINK_CMD_PARAM_NEW : DEVLINK_CMD_PARAM_DEL; |
070c63f2 | 4389 | list_for_each_entry(param_item, &devlink->param_list, list) |
05a7f4a8 LR |
4390 | devlink_param_notify(devlink, 0, param_item, cmd); |
4391 | ||
4392 | if (!new) | |
4393 | devlink_notify(devlink, DEVLINK_CMD_DEL); | |
070c63f2 JP |
4394 | } |
4395 | ||
69d56e0e | 4396 | static bool devlink_reload_supported(const struct devlink_ops *ops) |
97691069 | 4397 | { |
69d56e0e | 4398 | return ops->reload_down && ops->reload_up; |
97691069 JP |
4399 | } |
4400 | ||
2670ac26 JP |
4401 | static void devlink_reload_failed_set(struct devlink *devlink, |
4402 | bool reload_failed) | |
4403 | { | |
4404 | if (devlink->reload_failed == reload_failed) | |
4405 | return; | |
4406 | devlink->reload_failed = reload_failed; | |
4407 | devlink_notify(devlink, DEVLINK_CMD_NEW); | |
4408 | } | |
4409 | ||
4410 | bool devlink_is_reload_failed(const struct devlink *devlink) | |
4411 | { | |
4412 | return devlink->reload_failed; | |
4413 | } | |
4414 | EXPORT_SYMBOL_GPL(devlink_is_reload_failed); | |
4415 | ||
a254c264 MS |
4416 | static void |
4417 | __devlink_reload_stats_update(struct devlink *devlink, u32 *reload_stats, | |
4418 | enum devlink_reload_limit limit, u32 actions_performed) | |
4419 | { | |
4420 | unsigned long actions = actions_performed; | |
4421 | int stat_idx; | |
4422 | int action; | |
4423 | ||
4424 | for_each_set_bit(action, &actions, __DEVLINK_RELOAD_ACTION_MAX) { | |
4425 | stat_idx = limit * __DEVLINK_RELOAD_ACTION_MAX + action; | |
4426 | reload_stats[stat_idx]++; | |
4427 | } | |
4428 | devlink_notify(devlink, DEVLINK_CMD_NEW); | |
4429 | } | |
4430 | ||
4431 | static void | |
4432 | devlink_reload_stats_update(struct devlink *devlink, enum devlink_reload_limit limit, | |
4433 | u32 actions_performed) | |
4434 | { | |
4435 | __devlink_reload_stats_update(devlink, devlink->stats.reload_stats, limit, | |
4436 | actions_performed); | |
4437 | } | |
4438 | ||
77069ba2 MS |
4439 | /** |
4440 | * devlink_remote_reload_actions_performed - Update devlink on reload actions | |
4441 | * performed which are not a direct result of devlink reload call. | |
4442 | * | |
4443 | * This should be called by a driver after performing reload actions in case it was not | |
4444 | * a result of devlink reload call. For example fw_activate was performed as a result | |
4445 | * of devlink reload triggered fw_activate on another host. | |
4446 | * The motivation for this function is to keep data on reload actions performed on this | |
4447 | * function whether it was done due to direct devlink reload call or not. | |
4448 | * | |
4449 | * @devlink: devlink | |
4450 | * @limit: reload limit | |
4451 | * @actions_performed: bitmask of actions performed | |
4452 | */ | |
4453 | void devlink_remote_reload_actions_performed(struct devlink *devlink, | |
4454 | enum devlink_reload_limit limit, | |
4455 | u32 actions_performed) | |
4456 | { | |
4457 | if (WARN_ON(!actions_performed || | |
4458 | actions_performed & BIT(DEVLINK_RELOAD_ACTION_UNSPEC) || | |
4459 | actions_performed >= BIT(__DEVLINK_RELOAD_ACTION_MAX) || | |
4460 | limit > DEVLINK_RELOAD_LIMIT_MAX)) | |
4461 | return; | |
4462 | ||
4463 | __devlink_reload_stats_update(devlink, devlink->stats.remote_reload_stats, limit, | |
4464 | actions_performed); | |
4465 | } | |
4466 | EXPORT_SYMBOL_GPL(devlink_remote_reload_actions_performed); | |
4467 | ||
070c63f2 | 4468 | static int devlink_reload(struct devlink *devlink, struct net *dest_net, |
dc64cc7c MS |
4469 | enum devlink_reload_action action, enum devlink_reload_limit limit, |
4470 | u32 *actions_performed, struct netlink_ext_ack *extack) | |
070c63f2 | 4471 | { |
77069ba2 | 4472 | u32 remote_reload_stats[DEVLINK_RELOAD_STATS_ARRAY_SIZE]; |
05a7f4a8 | 4473 | struct net *curr_net; |
070c63f2 JP |
4474 | int err; |
4475 | ||
77069ba2 MS |
4476 | memcpy(remote_reload_stats, devlink->stats.remote_reload_stats, |
4477 | sizeof(remote_reload_stats)); | |
05a7f4a8 LR |
4478 | |
4479 | curr_net = devlink_net(devlink); | |
4480 | devlink_ns_change_notify(devlink, dest_net, curr_net, false); | |
dc64cc7c | 4481 | err = devlink->ops->reload_down(devlink, !!dest_net, action, limit, extack); |
070c63f2 JP |
4482 | if (err) |
4483 | return err; | |
4484 | ||
05a7f4a8 | 4485 | if (dest_net && !net_eq(dest_net, curr_net)) |
26713455 | 4486 | write_pnet(&devlink->_net, dest_net); |
070c63f2 | 4487 | |
dc64cc7c | 4488 | err = devlink->ops->reload_up(devlink, action, limit, actions_performed, extack); |
070c63f2 | 4489 | devlink_reload_failed_set(devlink, !!err); |
ccdf0721 MS |
4490 | if (err) |
4491 | return err; | |
4492 | ||
05a7f4a8 | 4493 | devlink_ns_change_notify(devlink, dest_net, curr_net, true); |
ccdf0721 | 4494 | WARN_ON(!(*actions_performed & BIT(action))); |
77069ba2 MS |
4495 | /* Catch driver on updating the remote action within devlink reload */ |
4496 | WARN_ON(memcmp(remote_reload_stats, devlink->stats.remote_reload_stats, | |
4497 | sizeof(remote_reload_stats))); | |
a254c264 | 4498 | devlink_reload_stats_update(devlink, limit, *actions_performed); |
ccdf0721 MS |
4499 | return 0; |
4500 | } | |
4501 | ||
4502 | static int | |
4503 | devlink_nl_reload_actions_performed_snd(struct devlink *devlink, u32 actions_performed, | |
4504 | enum devlink_command cmd, struct genl_info *info) | |
4505 | { | |
4506 | struct sk_buff *msg; | |
4507 | void *hdr; | |
4508 | ||
4509 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
4510 | if (!msg) | |
4511 | return -ENOMEM; | |
4512 | ||
4513 | hdr = genlmsg_put(msg, info->snd_portid, info->snd_seq, &devlink_nl_family, 0, cmd); | |
4514 | if (!hdr) | |
4515 | goto free_msg; | |
4516 | ||
4517 | if (devlink_nl_put_handle(msg, devlink)) | |
4518 | goto nla_put_failure; | |
4519 | ||
4520 | if (nla_put_bitfield32(msg, DEVLINK_ATTR_RELOAD_ACTIONS_PERFORMED, actions_performed, | |
4521 | actions_performed)) | |
4522 | goto nla_put_failure; | |
4523 | genlmsg_end(msg, hdr); | |
4524 | ||
4525 | return genlmsg_reply(msg, info); | |
4526 | ||
4527 | nla_put_failure: | |
4528 | genlmsg_cancel(msg, hdr); | |
4529 | free_msg: | |
4530 | nlmsg_free(msg); | |
4531 | return -EMSGSIZE; | |
070c63f2 JP |
4532 | } |
4533 | ||
2d8dc5bb AS |
4534 | static int devlink_nl_cmd_reload(struct sk_buff *skb, struct genl_info *info) |
4535 | { | |
4536 | struct devlink *devlink = info->user_ptr[0]; | |
ccdf0721 | 4537 | enum devlink_reload_action action; |
dc64cc7c | 4538 | enum devlink_reload_limit limit; |
070c63f2 | 4539 | struct net *dest_net = NULL; |
ccdf0721 | 4540 | u32 actions_performed; |
2d8dc5bb AS |
4541 | int err; |
4542 | ||
82465bec | 4543 | if (!(devlink->features & DEVLINK_F_RELOAD)) |
2d8dc5bb AS |
4544 | return -EOPNOTSUPP; |
4545 | ||
4546 | err = devlink_resources_validate(devlink, NULL, info); | |
4547 | if (err) { | |
4548 | NL_SET_ERR_MSG_MOD(info->extack, "resources size validation failed"); | |
4549 | return err; | |
4550 | } | |
070c63f2 | 4551 | |
ccdf0721 MS |
4552 | if (info->attrs[DEVLINK_ATTR_RELOAD_ACTION]) |
4553 | action = nla_get_u8(info->attrs[DEVLINK_ATTR_RELOAD_ACTION]); | |
4554 | else | |
4555 | action = DEVLINK_RELOAD_ACTION_DRIVER_REINIT; | |
4556 | ||
4557 | if (!devlink_reload_action_is_supported(devlink, action)) { | |
4558 | NL_SET_ERR_MSG_MOD(info->extack, | |
4559 | "Requested reload action is not supported by the driver"); | |
4560 | return -EOPNOTSUPP; | |
4561 | } | |
4562 | ||
dc64cc7c MS |
4563 | limit = DEVLINK_RELOAD_LIMIT_UNSPEC; |
4564 | if (info->attrs[DEVLINK_ATTR_RELOAD_LIMITS]) { | |
4565 | struct nla_bitfield32 limits; | |
4566 | u32 limits_selected; | |
4567 | ||
4568 | limits = nla_get_bitfield32(info->attrs[DEVLINK_ATTR_RELOAD_LIMITS]); | |
4569 | limits_selected = limits.value & limits.selector; | |
4570 | if (!limits_selected) { | |
4571 | NL_SET_ERR_MSG_MOD(info->extack, "Invalid limit selected"); | |
4572 | return -EINVAL; | |
4573 | } | |
4574 | for (limit = 0 ; limit <= DEVLINK_RELOAD_LIMIT_MAX ; limit++) | |
4575 | if (limits_selected & BIT(limit)) | |
4576 | break; | |
4577 | /* UAPI enables multiselection, but currently it is not used */ | |
4578 | if (limits_selected != BIT(limit)) { | |
4579 | NL_SET_ERR_MSG_MOD(info->extack, | |
4580 | "Multiselection of limit is not supported"); | |
4581 | return -EOPNOTSUPP; | |
4582 | } | |
4583 | if (!devlink_reload_limit_is_supported(devlink, limit)) { | |
4584 | NL_SET_ERR_MSG_MOD(info->extack, | |
4585 | "Requested limit is not supported by the driver"); | |
4586 | return -EOPNOTSUPP; | |
4587 | } | |
4588 | if (devlink_reload_combination_is_invalid(action, limit)) { | |
4589 | NL_SET_ERR_MSG_MOD(info->extack, | |
4590 | "Requested limit is invalid for this action"); | |
4591 | return -EINVAL; | |
4592 | } | |
4593 | } | |
4dbb0dad ED |
4594 | if (info->attrs[DEVLINK_ATTR_NETNS_PID] || |
4595 | info->attrs[DEVLINK_ATTR_NETNS_FD] || | |
4596 | info->attrs[DEVLINK_ATTR_NETNS_ID]) { | |
4597 | dest_net = devlink_netns_get(skb, info); | |
4598 | if (IS_ERR(dest_net)) | |
4599 | return PTR_ERR(dest_net); | |
4600 | } | |
4601 | ||
dc64cc7c | 4602 | err = devlink_reload(devlink, dest_net, action, limit, &actions_performed, info->extack); |
070c63f2 JP |
4603 | |
4604 | if (dest_net) | |
4605 | put_net(dest_net); | |
4606 | ||
ccdf0721 MS |
4607 | if (err) |
4608 | return err; | |
4609 | /* For backward compatibility generate reply only if attributes used by user */ | |
dc64cc7c | 4610 | if (!info->attrs[DEVLINK_ATTR_RELOAD_ACTION] && !info->attrs[DEVLINK_ATTR_RELOAD_LIMITS]) |
ccdf0721 MS |
4611 | return 0; |
4612 | ||
4613 | return devlink_nl_reload_actions_performed_snd(devlink, actions_performed, | |
4614 | DEVLINK_CMD_RELOAD, info); | |
2d8dc5bb AS |
4615 | } |
4616 | ||
191ed202 JP |
4617 | static int devlink_nl_flash_update_fill(struct sk_buff *msg, |
4618 | struct devlink *devlink, | |
4619 | enum devlink_command cmd, | |
6700acc5 | 4620 | struct devlink_flash_notify *params) |
191ed202 JP |
4621 | { |
4622 | void *hdr; | |
4623 | ||
4624 | hdr = genlmsg_put(msg, 0, 0, &devlink_nl_family, 0, cmd); | |
4625 | if (!hdr) | |
4626 | return -EMSGSIZE; | |
4627 | ||
4628 | if (devlink_nl_put_handle(msg, devlink)) | |
4629 | goto nla_put_failure; | |
4630 | ||
4631 | if (cmd != DEVLINK_CMD_FLASH_UPDATE_STATUS) | |
4632 | goto out; | |
4633 | ||
6700acc5 | 4634 | if (params->status_msg && |
191ed202 | 4635 | nla_put_string(msg, DEVLINK_ATTR_FLASH_UPDATE_STATUS_MSG, |
6700acc5 | 4636 | params->status_msg)) |
191ed202 | 4637 | goto nla_put_failure; |
6700acc5 | 4638 | if (params->component && |
191ed202 | 4639 | nla_put_string(msg, DEVLINK_ATTR_FLASH_UPDATE_COMPONENT, |
6700acc5 | 4640 | params->component)) |
191ed202 JP |
4641 | goto nla_put_failure; |
4642 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_FLASH_UPDATE_STATUS_DONE, | |
6700acc5 | 4643 | params->done, DEVLINK_ATTR_PAD)) |
191ed202 JP |
4644 | goto nla_put_failure; |
4645 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_FLASH_UPDATE_STATUS_TOTAL, | |
6700acc5 | 4646 | params->total, DEVLINK_ATTR_PAD)) |
191ed202 | 4647 | goto nla_put_failure; |
f92970c6 | 4648 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_FLASH_UPDATE_STATUS_TIMEOUT, |
6700acc5 | 4649 | params->timeout, DEVLINK_ATTR_PAD)) |
f92970c6 | 4650 | goto nla_put_failure; |
191ed202 JP |
4651 | |
4652 | out: | |
4653 | genlmsg_end(msg, hdr); | |
4654 | return 0; | |
4655 | ||
4656 | nla_put_failure: | |
4657 | genlmsg_cancel(msg, hdr); | |
4658 | return -EMSGSIZE; | |
4659 | } | |
4660 | ||
4661 | static void __devlink_flash_update_notify(struct devlink *devlink, | |
4662 | enum devlink_command cmd, | |
6700acc5 | 4663 | struct devlink_flash_notify *params) |
191ed202 JP |
4664 | { |
4665 | struct sk_buff *msg; | |
4666 | int err; | |
4667 | ||
4668 | WARN_ON(cmd != DEVLINK_CMD_FLASH_UPDATE && | |
4669 | cmd != DEVLINK_CMD_FLASH_UPDATE_END && | |
4670 | cmd != DEVLINK_CMD_FLASH_UPDATE_STATUS); | |
fec1faf2 LR |
4671 | |
4672 | if (!xa_get_mark(&devlinks, devlink->index, DEVLINK_REGISTERED)) | |
4673 | return; | |
191ed202 JP |
4674 | |
4675 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
4676 | if (!msg) | |
4677 | return; | |
4678 | ||
6700acc5 | 4679 | err = devlink_nl_flash_update_fill(msg, devlink, cmd, params); |
191ed202 JP |
4680 | if (err) |
4681 | goto out_free_msg; | |
4682 | ||
4683 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), | |
4684 | msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
4685 | return; | |
4686 | ||
4687 | out_free_msg: | |
4688 | nlmsg_free(msg); | |
4689 | } | |
4690 | ||
52cc5f3a | 4691 | static void devlink_flash_update_begin_notify(struct devlink *devlink) |
191ed202 | 4692 | { |
ed43fbac | 4693 | struct devlink_flash_notify params = {}; |
6700acc5 | 4694 | |
191ed202 JP |
4695 | __devlink_flash_update_notify(devlink, |
4696 | DEVLINK_CMD_FLASH_UPDATE, | |
6700acc5 | 4697 | ¶ms); |
191ed202 | 4698 | } |
191ed202 | 4699 | |
52cc5f3a | 4700 | static void devlink_flash_update_end_notify(struct devlink *devlink) |
191ed202 | 4701 | { |
ed43fbac | 4702 | struct devlink_flash_notify params = {}; |
6700acc5 | 4703 | |
191ed202 JP |
4704 | __devlink_flash_update_notify(devlink, |
4705 | DEVLINK_CMD_FLASH_UPDATE_END, | |
6700acc5 | 4706 | ¶ms); |
191ed202 | 4707 | } |
191ed202 JP |
4708 | |
4709 | void devlink_flash_update_status_notify(struct devlink *devlink, | |
4710 | const char *status_msg, | |
4711 | const char *component, | |
4712 | unsigned long done, | |
4713 | unsigned long total) | |
4714 | { | |
6700acc5 SN |
4715 | struct devlink_flash_notify params = { |
4716 | .status_msg = status_msg, | |
4717 | .component = component, | |
4718 | .done = done, | |
4719 | .total = total, | |
4720 | }; | |
4721 | ||
191ed202 JP |
4722 | __devlink_flash_update_notify(devlink, |
4723 | DEVLINK_CMD_FLASH_UPDATE_STATUS, | |
6700acc5 | 4724 | ¶ms); |
191ed202 JP |
4725 | } |
4726 | EXPORT_SYMBOL_GPL(devlink_flash_update_status_notify); | |
4727 | ||
f92970c6 SN |
4728 | void devlink_flash_update_timeout_notify(struct devlink *devlink, |
4729 | const char *status_msg, | |
4730 | const char *component, | |
4731 | unsigned long timeout) | |
4732 | { | |
6700acc5 SN |
4733 | struct devlink_flash_notify params = { |
4734 | .status_msg = status_msg, | |
4735 | .component = component, | |
4736 | .timeout = timeout, | |
4737 | }; | |
4738 | ||
f92970c6 SN |
4739 | __devlink_flash_update_notify(devlink, |
4740 | DEVLINK_CMD_FLASH_UPDATE_STATUS, | |
6700acc5 | 4741 | ¶ms); |
f92970c6 SN |
4742 | } |
4743 | EXPORT_SYMBOL_GPL(devlink_flash_update_timeout_notify); | |
4744 | ||
76726ccb JK |
4745 | static int devlink_nl_cmd_flash_update(struct sk_buff *skb, |
4746 | struct genl_info *info) | |
4747 | { | |
b44cfd4f | 4748 | struct nlattr *nla_component, *nla_overwrite_mask, *nla_file_name; |
bc75c054 | 4749 | struct devlink_flash_update_params params = {}; |
76726ccb | 4750 | struct devlink *devlink = info->user_ptr[0]; |
b44cfd4f | 4751 | const char *file_name; |
22ec3d23 | 4752 | u32 supported_params; |
b44cfd4f | 4753 | int ret; |
76726ccb JK |
4754 | |
4755 | if (!devlink->ops->flash_update) | |
4756 | return -EOPNOTSUPP; | |
4757 | ||
4758 | if (!info->attrs[DEVLINK_ATTR_FLASH_UPDATE_FILE_NAME]) | |
4759 | return -EINVAL; | |
22ec3d23 JK |
4760 | |
4761 | supported_params = devlink->ops->supported_flash_update_params; | |
4762 | ||
76726ccb | 4763 | nla_component = info->attrs[DEVLINK_ATTR_FLASH_UPDATE_COMPONENT]; |
22ec3d23 JK |
4764 | if (nla_component) { |
4765 | if (!(supported_params & DEVLINK_SUPPORT_FLASH_UPDATE_COMPONENT)) { | |
4766 | NL_SET_ERR_MSG_ATTR(info->extack, nla_component, | |
4767 | "component update is not supported by this device"); | |
4768 | return -EOPNOTSUPP; | |
4769 | } | |
bc75c054 | 4770 | params.component = nla_data(nla_component); |
22ec3d23 | 4771 | } |
76726ccb | 4772 | |
5d5b4128 JK |
4773 | nla_overwrite_mask = info->attrs[DEVLINK_ATTR_FLASH_UPDATE_OVERWRITE_MASK]; |
4774 | if (nla_overwrite_mask) { | |
4775 | struct nla_bitfield32 sections; | |
4776 | ||
4777 | if (!(supported_params & DEVLINK_SUPPORT_FLASH_UPDATE_OVERWRITE_MASK)) { | |
4778 | NL_SET_ERR_MSG_ATTR(info->extack, nla_overwrite_mask, | |
4779 | "overwrite settings are not supported by this device"); | |
4780 | return -EOPNOTSUPP; | |
4781 | } | |
4782 | sections = nla_get_bitfield32(nla_overwrite_mask); | |
4783 | params.overwrite_mask = sections.value & sections.selector; | |
4784 | } | |
4785 | ||
b44cfd4f JK |
4786 | nla_file_name = info->attrs[DEVLINK_ATTR_FLASH_UPDATE_FILE_NAME]; |
4787 | file_name = nla_data(nla_file_name); | |
4788 | ret = request_firmware(¶ms.fw, file_name, devlink->dev); | |
4789 | if (ret) { | |
4790 | NL_SET_ERR_MSG_ATTR(info->extack, nla_file_name, "failed to locate the requested firmware file"); | |
4791 | return ret; | |
4792 | } | |
4793 | ||
52cc5f3a | 4794 | devlink_flash_update_begin_notify(devlink); |
b44cfd4f | 4795 | ret = devlink->ops->flash_update(devlink, ¶ms, info->extack); |
52cc5f3a | 4796 | devlink_flash_update_end_notify(devlink); |
b44cfd4f JK |
4797 | |
4798 | release_firmware(params.fw); | |
4799 | ||
4800 | return ret; | |
76726ccb JK |
4801 | } |
4802 | ||
08f588fa VG |
4803 | static int |
4804 | devlink_nl_selftests_fill(struct sk_buff *msg, struct devlink *devlink, | |
4805 | u32 portid, u32 seq, int flags, | |
4806 | struct netlink_ext_ack *extack) | |
4807 | { | |
4808 | struct nlattr *selftests; | |
4809 | void *hdr; | |
4810 | int err; | |
4811 | int i; | |
4812 | ||
4813 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, | |
4814 | DEVLINK_CMD_SELFTESTS_GET); | |
4815 | if (!hdr) | |
4816 | return -EMSGSIZE; | |
4817 | ||
4818 | err = -EMSGSIZE; | |
4819 | if (devlink_nl_put_handle(msg, devlink)) | |
4820 | goto err_cancel_msg; | |
4821 | ||
4822 | selftests = nla_nest_start(msg, DEVLINK_ATTR_SELFTESTS); | |
4823 | if (!selftests) | |
4824 | goto err_cancel_msg; | |
4825 | ||
4826 | for (i = DEVLINK_ATTR_SELFTEST_ID_UNSPEC + 1; | |
4827 | i <= DEVLINK_ATTR_SELFTEST_ID_MAX; i++) { | |
4828 | if (devlink->ops->selftest_check(devlink, i, extack)) { | |
4829 | err = nla_put_flag(msg, i); | |
4830 | if (err) | |
4831 | goto err_cancel_msg; | |
4832 | } | |
4833 | } | |
4834 | ||
4835 | nla_nest_end(msg, selftests); | |
4836 | genlmsg_end(msg, hdr); | |
4837 | return 0; | |
4838 | ||
4839 | err_cancel_msg: | |
4840 | genlmsg_cancel(msg, hdr); | |
4841 | return err; | |
4842 | } | |
4843 | ||
4844 | static int devlink_nl_cmd_selftests_get_doit(struct sk_buff *skb, | |
4845 | struct genl_info *info) | |
4846 | { | |
4847 | struct devlink *devlink = info->user_ptr[0]; | |
4848 | struct sk_buff *msg; | |
4849 | int err; | |
4850 | ||
4851 | if (!devlink->ops->selftest_check) | |
4852 | return -EOPNOTSUPP; | |
4853 | ||
4854 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
4855 | if (!msg) | |
4856 | return -ENOMEM; | |
4857 | ||
4858 | err = devlink_nl_selftests_fill(msg, devlink, info->snd_portid, | |
4859 | info->snd_seq, 0, info->extack); | |
4860 | if (err) { | |
4861 | nlmsg_free(msg); | |
4862 | return err; | |
4863 | } | |
4864 | ||
4865 | return genlmsg_reply(msg, info); | |
4866 | } | |
4867 | ||
4868 | static int devlink_nl_cmd_selftests_get_dumpit(struct sk_buff *msg, | |
4869 | struct netlink_callback *cb) | |
4870 | { | |
4871 | struct devlink *devlink; | |
4872 | int start = cb->args[0]; | |
4873 | unsigned long index; | |
4874 | int idx = 0; | |
4875 | int err = 0; | |
4876 | ||
08f588fa VG |
4877 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
4878 | if (idx < start || !devlink->ops->selftest_check) | |
4879 | goto inc; | |
4880 | ||
4881 | devl_lock(devlink); | |
4882 | err = devlink_nl_selftests_fill(msg, devlink, | |
4883 | NETLINK_CB(cb->skb).portid, | |
4884 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
4885 | cb->extack); | |
4886 | devl_unlock(devlink); | |
4887 | if (err) { | |
4888 | devlink_put(devlink); | |
4889 | break; | |
4890 | } | |
4891 | inc: | |
4892 | idx++; | |
4893 | devlink_put(devlink); | |
4894 | } | |
08f588fa VG |
4895 | |
4896 | if (err != -EMSGSIZE) | |
4897 | return err; | |
4898 | ||
4899 | cb->args[0] = idx; | |
4900 | return msg->len; | |
4901 | } | |
4902 | ||
4903 | static int devlink_selftest_result_put(struct sk_buff *skb, unsigned int id, | |
4904 | enum devlink_selftest_status test_status) | |
4905 | { | |
4906 | struct nlattr *result_attr; | |
4907 | ||
4908 | result_attr = nla_nest_start(skb, DEVLINK_ATTR_SELFTEST_RESULT); | |
4909 | if (!result_attr) | |
4910 | return -EMSGSIZE; | |
4911 | ||
4912 | if (nla_put_u32(skb, DEVLINK_ATTR_SELFTEST_RESULT_ID, id) || | |
4913 | nla_put_u8(skb, DEVLINK_ATTR_SELFTEST_RESULT_STATUS, | |
4914 | test_status)) | |
4915 | goto nla_put_failure; | |
4916 | ||
4917 | nla_nest_end(skb, result_attr); | |
4918 | return 0; | |
4919 | ||
4920 | nla_put_failure: | |
4921 | nla_nest_cancel(skb, result_attr); | |
4922 | return -EMSGSIZE; | |
4923 | } | |
4924 | ||
4925 | static int devlink_nl_cmd_selftests_run(struct sk_buff *skb, | |
4926 | struct genl_info *info) | |
4927 | { | |
4928 | struct nlattr *tb[DEVLINK_ATTR_SELFTEST_ID_MAX + 1]; | |
4929 | struct devlink *devlink = info->user_ptr[0]; | |
4930 | struct nlattr *attrs, *selftests; | |
4931 | struct sk_buff *msg; | |
4932 | void *hdr; | |
4933 | int err; | |
4934 | int i; | |
4935 | ||
4936 | if (!devlink->ops->selftest_run || !devlink->ops->selftest_check) | |
4937 | return -EOPNOTSUPP; | |
4938 | ||
4939 | if (!info->attrs[DEVLINK_ATTR_SELFTESTS]) { | |
4940 | NL_SET_ERR_MSG_MOD(info->extack, "selftest required"); | |
4941 | return -EINVAL; | |
4942 | } | |
4943 | ||
4944 | attrs = info->attrs[DEVLINK_ATTR_SELFTESTS]; | |
4945 | ||
4946 | err = nla_parse_nested(tb, DEVLINK_ATTR_SELFTEST_ID_MAX, attrs, | |
4947 | devlink_selftest_nl_policy, info->extack); | |
4948 | if (err < 0) | |
4949 | return err; | |
4950 | ||
4951 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
4952 | if (!msg) | |
4953 | return -ENOMEM; | |
4954 | ||
4955 | err = -EMSGSIZE; | |
4956 | hdr = genlmsg_put(msg, info->snd_portid, info->snd_seq, | |
4957 | &devlink_nl_family, 0, DEVLINK_CMD_SELFTESTS_RUN); | |
4958 | if (!hdr) | |
4959 | goto free_msg; | |
4960 | ||
4961 | if (devlink_nl_put_handle(msg, devlink)) | |
4962 | goto genlmsg_cancel; | |
4963 | ||
4964 | selftests = nla_nest_start(msg, DEVLINK_ATTR_SELFTESTS); | |
4965 | if (!selftests) | |
4966 | goto genlmsg_cancel; | |
4967 | ||
4968 | for (i = DEVLINK_ATTR_SELFTEST_ID_UNSPEC + 1; | |
4969 | i <= DEVLINK_ATTR_SELFTEST_ID_MAX; i++) { | |
4970 | enum devlink_selftest_status test_status; | |
4971 | ||
4972 | if (nla_get_flag(tb[i])) { | |
4973 | if (!devlink->ops->selftest_check(devlink, i, | |
4974 | info->extack)) { | |
4975 | if (devlink_selftest_result_put(msg, i, | |
4976 | DEVLINK_SELFTEST_STATUS_SKIP)) | |
4977 | goto selftests_nest_cancel; | |
4978 | continue; | |
4979 | } | |
4980 | ||
4981 | test_status = devlink->ops->selftest_run(devlink, i, | |
4982 | info->extack); | |
4983 | if (devlink_selftest_result_put(msg, i, test_status)) | |
4984 | goto selftests_nest_cancel; | |
4985 | } | |
4986 | } | |
4987 | ||
4988 | nla_nest_end(msg, selftests); | |
4989 | genlmsg_end(msg, hdr); | |
4990 | return genlmsg_reply(msg, info); | |
4991 | ||
4992 | selftests_nest_cancel: | |
4993 | nla_nest_cancel(msg, selftests); | |
4994 | genlmsg_cancel: | |
4995 | genlmsg_cancel(msg, hdr); | |
4996 | free_msg: | |
4997 | nlmsg_free(msg); | |
4998 | return err; | |
4999 | } | |
5000 | ||
036467c3 MS |
5001 | static const struct devlink_param devlink_param_generic[] = { |
5002 | { | |
5003 | .id = DEVLINK_PARAM_GENERIC_ID_INT_ERR_RESET, | |
5004 | .name = DEVLINK_PARAM_GENERIC_INT_ERR_RESET_NAME, | |
5005 | .type = DEVLINK_PARAM_GENERIC_INT_ERR_RESET_TYPE, | |
5006 | }, | |
5007 | { | |
5008 | .id = DEVLINK_PARAM_GENERIC_ID_MAX_MACS, | |
5009 | .name = DEVLINK_PARAM_GENERIC_MAX_MACS_NAME, | |
5010 | .type = DEVLINK_PARAM_GENERIC_MAX_MACS_TYPE, | |
5011 | }, | |
f567bcda VV |
5012 | { |
5013 | .id = DEVLINK_PARAM_GENERIC_ID_ENABLE_SRIOV, | |
5014 | .name = DEVLINK_PARAM_GENERIC_ENABLE_SRIOV_NAME, | |
5015 | .type = DEVLINK_PARAM_GENERIC_ENABLE_SRIOV_TYPE, | |
5016 | }, | |
f6a69885 AV |
5017 | { |
5018 | .id = DEVLINK_PARAM_GENERIC_ID_REGION_SNAPSHOT, | |
5019 | .name = DEVLINK_PARAM_GENERIC_REGION_SNAPSHOT_NAME, | |
5020 | .type = DEVLINK_PARAM_GENERIC_REGION_SNAPSHOT_TYPE, | |
5021 | }, | |
e3b51061 VV |
5022 | { |
5023 | .id = DEVLINK_PARAM_GENERIC_ID_IGNORE_ARI, | |
5024 | .name = DEVLINK_PARAM_GENERIC_IGNORE_ARI_NAME, | |
5025 | .type = DEVLINK_PARAM_GENERIC_IGNORE_ARI_TYPE, | |
5026 | }, | |
f61cba42 VV |
5027 | { |
5028 | .id = DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MAX, | |
5029 | .name = DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MAX_NAME, | |
5030 | .type = DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MAX_TYPE, | |
5031 | }, | |
16511789 VV |
5032 | { |
5033 | .id = DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MIN, | |
5034 | .name = DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MIN_NAME, | |
5035 | .type = DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MIN_TYPE, | |
5036 | }, | |
846e980a ST |
5037 | { |
5038 | .id = DEVLINK_PARAM_GENERIC_ID_FW_LOAD_POLICY, | |
5039 | .name = DEVLINK_PARAM_GENERIC_FW_LOAD_POLICY_NAME, | |
5040 | .type = DEVLINK_PARAM_GENERIC_FW_LOAD_POLICY_TYPE, | |
5041 | }, | |
5bbd21df DM |
5042 | { |
5043 | .id = DEVLINK_PARAM_GENERIC_ID_RESET_DEV_ON_DRV_PROBE, | |
5044 | .name = DEVLINK_PARAM_GENERIC_RESET_DEV_ON_DRV_PROBE_NAME, | |
5045 | .type = DEVLINK_PARAM_GENERIC_RESET_DEV_ON_DRV_PROBE_TYPE, | |
5046 | }, | |
6c7295e1 MG |
5047 | { |
5048 | .id = DEVLINK_PARAM_GENERIC_ID_ENABLE_ROCE, | |
5049 | .name = DEVLINK_PARAM_GENERIC_ENABLE_ROCE_NAME, | |
5050 | .type = DEVLINK_PARAM_GENERIC_ENABLE_ROCE_TYPE, | |
5051 | }, | |
195d9dec MS |
5052 | { |
5053 | .id = DEVLINK_PARAM_GENERIC_ID_ENABLE_REMOTE_DEV_RESET, | |
5054 | .name = DEVLINK_PARAM_GENERIC_ENABLE_REMOTE_DEV_RESET_NAME, | |
5055 | .type = DEVLINK_PARAM_GENERIC_ENABLE_REMOTE_DEV_RESET_TYPE, | |
5056 | }, | |
f13a5ad8 PP |
5057 | { |
5058 | .id = DEVLINK_PARAM_GENERIC_ID_ENABLE_ETH, | |
5059 | .name = DEVLINK_PARAM_GENERIC_ENABLE_ETH_NAME, | |
5060 | .type = DEVLINK_PARAM_GENERIC_ENABLE_ETH_TYPE, | |
5061 | }, | |
8ddaabee PP |
5062 | { |
5063 | .id = DEVLINK_PARAM_GENERIC_ID_ENABLE_RDMA, | |
5064 | .name = DEVLINK_PARAM_GENERIC_ENABLE_RDMA_NAME, | |
5065 | .type = DEVLINK_PARAM_GENERIC_ENABLE_RDMA_TYPE, | |
5066 | }, | |
076b2a9d PP |
5067 | { |
5068 | .id = DEVLINK_PARAM_GENERIC_ID_ENABLE_VNET, | |
5069 | .name = DEVLINK_PARAM_GENERIC_ENABLE_VNET_NAME, | |
5070 | .type = DEVLINK_PARAM_GENERIC_ENABLE_VNET_TYPE, | |
5071 | }, | |
325e0d0a SS |
5072 | { |
5073 | .id = DEVLINK_PARAM_GENERIC_ID_ENABLE_IWARP, | |
5074 | .name = DEVLINK_PARAM_GENERIC_ENABLE_IWARP_NAME, | |
5075 | .type = DEVLINK_PARAM_GENERIC_ENABLE_IWARP_TYPE, | |
5076 | }, | |
47402385 SD |
5077 | { |
5078 | .id = DEVLINK_PARAM_GENERIC_ID_IO_EQ_SIZE, | |
5079 | .name = DEVLINK_PARAM_GENERIC_IO_EQ_SIZE_NAME, | |
5080 | .type = DEVLINK_PARAM_GENERIC_IO_EQ_SIZE_TYPE, | |
5081 | }, | |
0b5705eb SD |
5082 | { |
5083 | .id = DEVLINK_PARAM_GENERIC_ID_EVENT_EQ_SIZE, | |
5084 | .name = DEVLINK_PARAM_GENERIC_EVENT_EQ_SIZE_NAME, | |
5085 | .type = DEVLINK_PARAM_GENERIC_EVENT_EQ_SIZE_TYPE, | |
5086 | }, | |
036467c3 | 5087 | }; |
eabaef18 MS |
5088 | |
5089 | static int devlink_param_generic_verify(const struct devlink_param *param) | |
5090 | { | |
5091 | /* verify it match generic parameter by id and name */ | |
5092 | if (param->id > DEVLINK_PARAM_GENERIC_ID_MAX) | |
5093 | return -EINVAL; | |
5094 | if (strcmp(param->name, devlink_param_generic[param->id].name)) | |
5095 | return -ENOENT; | |
5096 | ||
5097 | WARN_ON(param->type != devlink_param_generic[param->id].type); | |
5098 | ||
5099 | return 0; | |
5100 | } | |
5101 | ||
5102 | static int devlink_param_driver_verify(const struct devlink_param *param) | |
5103 | { | |
5104 | int i; | |
5105 | ||
5106 | if (param->id <= DEVLINK_PARAM_GENERIC_ID_MAX) | |
5107 | return -EINVAL; | |
5108 | /* verify no such name in generic params */ | |
5109 | for (i = 0; i <= DEVLINK_PARAM_GENERIC_ID_MAX; i++) | |
5110 | if (!strcmp(param->name, devlink_param_generic[i].name)) | |
5111 | return -EEXIST; | |
5112 | ||
5113 | return 0; | |
5114 | } | |
5115 | ||
5116 | static struct devlink_param_item * | |
5117 | devlink_param_find_by_name(struct list_head *param_list, | |
5118 | const char *param_name) | |
5119 | { | |
5120 | struct devlink_param_item *param_item; | |
5121 | ||
5122 | list_for_each_entry(param_item, param_list, list) | |
5123 | if (!strcmp(param_item->param->name, param_name)) | |
5124 | return param_item; | |
5125 | return NULL; | |
5126 | } | |
5127 | ||
ec01aeb1 MS |
5128 | static struct devlink_param_item * |
5129 | devlink_param_find_by_id(struct list_head *param_list, u32 param_id) | |
5130 | { | |
5131 | struct devlink_param_item *param_item; | |
5132 | ||
5133 | list_for_each_entry(param_item, param_list, list) | |
5134 | if (param_item->param->id == param_id) | |
5135 | return param_item; | |
5136 | return NULL; | |
5137 | } | |
5138 | ||
45f05def MS |
5139 | static bool |
5140 | devlink_param_cmode_is_supported(const struct devlink_param *param, | |
5141 | enum devlink_param_cmode cmode) | |
5142 | { | |
5143 | return test_bit(cmode, ¶m->supported_cmodes); | |
5144 | } | |
5145 | ||
5146 | static int devlink_param_get(struct devlink *devlink, | |
5147 | const struct devlink_param *param, | |
5148 | struct devlink_param_gset_ctx *ctx) | |
5149 | { | |
6b4db2e5 | 5150 | if (!param->get || devlink->reload_failed) |
45f05def MS |
5151 | return -EOPNOTSUPP; |
5152 | return param->get(devlink, param->id, ctx); | |
5153 | } | |
5154 | ||
e3b7ca18 MS |
5155 | static int devlink_param_set(struct devlink *devlink, |
5156 | const struct devlink_param *param, | |
5157 | struct devlink_param_gset_ctx *ctx) | |
5158 | { | |
6b4db2e5 | 5159 | if (!param->set || devlink->reload_failed) |
e3b7ca18 MS |
5160 | return -EOPNOTSUPP; |
5161 | return param->set(devlink, param->id, ctx); | |
5162 | } | |
5163 | ||
45f05def MS |
5164 | static int |
5165 | devlink_param_type_to_nla_type(enum devlink_param_type param_type) | |
5166 | { | |
5167 | switch (param_type) { | |
5168 | case DEVLINK_PARAM_TYPE_U8: | |
5169 | return NLA_U8; | |
5170 | case DEVLINK_PARAM_TYPE_U16: | |
5171 | return NLA_U16; | |
5172 | case DEVLINK_PARAM_TYPE_U32: | |
5173 | return NLA_U32; | |
5174 | case DEVLINK_PARAM_TYPE_STRING: | |
5175 | return NLA_STRING; | |
5176 | case DEVLINK_PARAM_TYPE_BOOL: | |
5177 | return NLA_FLAG; | |
5178 | default: | |
5179 | return -EINVAL; | |
5180 | } | |
5181 | } | |
5182 | ||
5183 | static int | |
5184 | devlink_nl_param_value_fill_one(struct sk_buff *msg, | |
5185 | enum devlink_param_type type, | |
5186 | enum devlink_param_cmode cmode, | |
5187 | union devlink_param_value val) | |
5188 | { | |
5189 | struct nlattr *param_value_attr; | |
5190 | ||
ae0be8de MK |
5191 | param_value_attr = nla_nest_start_noflag(msg, |
5192 | DEVLINK_ATTR_PARAM_VALUE); | |
45f05def MS |
5193 | if (!param_value_attr) |
5194 | goto nla_put_failure; | |
5195 | ||
5196 | if (nla_put_u8(msg, DEVLINK_ATTR_PARAM_VALUE_CMODE, cmode)) | |
5197 | goto value_nest_cancel; | |
5198 | ||
5199 | switch (type) { | |
5200 | case DEVLINK_PARAM_TYPE_U8: | |
5201 | if (nla_put_u8(msg, DEVLINK_ATTR_PARAM_VALUE_DATA, val.vu8)) | |
5202 | goto value_nest_cancel; | |
5203 | break; | |
5204 | case DEVLINK_PARAM_TYPE_U16: | |
5205 | if (nla_put_u16(msg, DEVLINK_ATTR_PARAM_VALUE_DATA, val.vu16)) | |
5206 | goto value_nest_cancel; | |
5207 | break; | |
5208 | case DEVLINK_PARAM_TYPE_U32: | |
5209 | if (nla_put_u32(msg, DEVLINK_ATTR_PARAM_VALUE_DATA, val.vu32)) | |
5210 | goto value_nest_cancel; | |
5211 | break; | |
5212 | case DEVLINK_PARAM_TYPE_STRING: | |
5213 | if (nla_put_string(msg, DEVLINK_ATTR_PARAM_VALUE_DATA, | |
5214 | val.vstr)) | |
5215 | goto value_nest_cancel; | |
5216 | break; | |
5217 | case DEVLINK_PARAM_TYPE_BOOL: | |
5218 | if (val.vbool && | |
5219 | nla_put_flag(msg, DEVLINK_ATTR_PARAM_VALUE_DATA)) | |
5220 | goto value_nest_cancel; | |
5221 | break; | |
5222 | } | |
5223 | ||
5224 | nla_nest_end(msg, param_value_attr); | |
5225 | return 0; | |
5226 | ||
5227 | value_nest_cancel: | |
5228 | nla_nest_cancel(msg, param_value_attr); | |
5229 | nla_put_failure: | |
5230 | return -EMSGSIZE; | |
5231 | } | |
5232 | ||
5233 | static int devlink_nl_param_fill(struct sk_buff *msg, struct devlink *devlink, | |
f4601dee | 5234 | unsigned int port_index, |
45f05def MS |
5235 | struct devlink_param_item *param_item, |
5236 | enum devlink_command cmd, | |
5237 | u32 portid, u32 seq, int flags) | |
5238 | { | |
5239 | union devlink_param_value param_value[DEVLINK_PARAM_CMODE_MAX + 1]; | |
7c62cfb8 | 5240 | bool param_value_set[DEVLINK_PARAM_CMODE_MAX + 1] = {}; |
45f05def MS |
5241 | const struct devlink_param *param = param_item->param; |
5242 | struct devlink_param_gset_ctx ctx; | |
5243 | struct nlattr *param_values_list; | |
5244 | struct nlattr *param_attr; | |
5245 | int nla_type; | |
5246 | void *hdr; | |
5247 | int err; | |
5248 | int i; | |
5249 | ||
5250 | /* Get value from driver part to driverinit configuration mode */ | |
5251 | for (i = 0; i <= DEVLINK_PARAM_CMODE_MAX; i++) { | |
5252 | if (!devlink_param_cmode_is_supported(param, i)) | |
5253 | continue; | |
5254 | if (i == DEVLINK_PARAM_CMODE_DRIVERINIT) { | |
5255 | if (!param_item->driverinit_value_valid) | |
5256 | return -EOPNOTSUPP; | |
5257 | param_value[i] = param_item->driverinit_value; | |
5258 | } else { | |
5259 | ctx.cmode = i; | |
5260 | err = devlink_param_get(devlink, param, &ctx); | |
5261 | if (err) | |
5262 | return err; | |
5263 | param_value[i] = ctx.val; | |
5264 | } | |
7c62cfb8 | 5265 | param_value_set[i] = true; |
45f05def MS |
5266 | } |
5267 | ||
5268 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
5269 | if (!hdr) | |
5270 | return -EMSGSIZE; | |
5271 | ||
5272 | if (devlink_nl_put_handle(msg, devlink)) | |
5273 | goto genlmsg_cancel; | |
f4601dee | 5274 | |
c1e5786d VV |
5275 | if (cmd == DEVLINK_CMD_PORT_PARAM_GET || |
5276 | cmd == DEVLINK_CMD_PORT_PARAM_NEW || | |
5277 | cmd == DEVLINK_CMD_PORT_PARAM_DEL) | |
f4601dee VV |
5278 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, port_index)) |
5279 | goto genlmsg_cancel; | |
5280 | ||
ae0be8de | 5281 | param_attr = nla_nest_start_noflag(msg, DEVLINK_ATTR_PARAM); |
45f05def MS |
5282 | if (!param_attr) |
5283 | goto genlmsg_cancel; | |
5284 | if (nla_put_string(msg, DEVLINK_ATTR_PARAM_NAME, param->name)) | |
5285 | goto param_nest_cancel; | |
5286 | if (param->generic && nla_put_flag(msg, DEVLINK_ATTR_PARAM_GENERIC)) | |
5287 | goto param_nest_cancel; | |
5288 | ||
5289 | nla_type = devlink_param_type_to_nla_type(param->type); | |
5290 | if (nla_type < 0) | |
5291 | goto param_nest_cancel; | |
5292 | if (nla_put_u8(msg, DEVLINK_ATTR_PARAM_TYPE, nla_type)) | |
5293 | goto param_nest_cancel; | |
5294 | ||
ae0be8de MK |
5295 | param_values_list = nla_nest_start_noflag(msg, |
5296 | DEVLINK_ATTR_PARAM_VALUES_LIST); | |
45f05def MS |
5297 | if (!param_values_list) |
5298 | goto param_nest_cancel; | |
5299 | ||
5300 | for (i = 0; i <= DEVLINK_PARAM_CMODE_MAX; i++) { | |
7c62cfb8 | 5301 | if (!param_value_set[i]) |
45f05def MS |
5302 | continue; |
5303 | err = devlink_nl_param_value_fill_one(msg, param->type, | |
5304 | i, param_value[i]); | |
5305 | if (err) | |
5306 | goto values_list_nest_cancel; | |
5307 | } | |
5308 | ||
5309 | nla_nest_end(msg, param_values_list); | |
5310 | nla_nest_end(msg, param_attr); | |
5311 | genlmsg_end(msg, hdr); | |
5312 | return 0; | |
5313 | ||
5314 | values_list_nest_cancel: | |
5315 | nla_nest_end(msg, param_values_list); | |
5316 | param_nest_cancel: | |
5317 | nla_nest_cancel(msg, param_attr); | |
5318 | genlmsg_cancel: | |
5319 | genlmsg_cancel(msg, hdr); | |
5320 | return -EMSGSIZE; | |
5321 | } | |
5322 | ||
ea601e17 | 5323 | static void devlink_param_notify(struct devlink *devlink, |
c1e5786d | 5324 | unsigned int port_index, |
ea601e17 MS |
5325 | struct devlink_param_item *param_item, |
5326 | enum devlink_command cmd) | |
5327 | { | |
5328 | struct sk_buff *msg; | |
5329 | int err; | |
5330 | ||
c1e5786d VV |
5331 | WARN_ON(cmd != DEVLINK_CMD_PARAM_NEW && cmd != DEVLINK_CMD_PARAM_DEL && |
5332 | cmd != DEVLINK_CMD_PORT_PARAM_NEW && | |
5333 | cmd != DEVLINK_CMD_PORT_PARAM_DEL); | |
7a690ad4 | 5334 | ASSERT_DEVLINK_REGISTERED(devlink); |
ea601e17 MS |
5335 | |
5336 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
5337 | if (!msg) | |
5338 | return; | |
c1e5786d VV |
5339 | err = devlink_nl_param_fill(msg, devlink, port_index, param_item, cmd, |
5340 | 0, 0, 0); | |
ea601e17 MS |
5341 | if (err) { |
5342 | nlmsg_free(msg); | |
5343 | return; | |
5344 | } | |
5345 | ||
5346 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), | |
5347 | msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
5348 | } | |
5349 | ||
45f05def MS |
5350 | static int devlink_nl_cmd_param_get_dumpit(struct sk_buff *msg, |
5351 | struct netlink_callback *cb) | |
5352 | { | |
5353 | struct devlink_param_item *param_item; | |
5354 | struct devlink *devlink; | |
5355 | int start = cb->args[0]; | |
11a861d7 | 5356 | unsigned long index; |
45f05def | 5357 | int idx = 0; |
c62c2cfb | 5358 | int err = 0; |
45f05def | 5359 | |
294c4f57 | 5360 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
7715023a | 5361 | devl_lock(devlink); |
45f05def MS |
5362 | list_for_each_entry(param_item, &devlink->param_list, list) { |
5363 | if (idx < start) { | |
5364 | idx++; | |
5365 | continue; | |
5366 | } | |
f4601dee | 5367 | err = devlink_nl_param_fill(msg, devlink, 0, param_item, |
45f05def MS |
5368 | DEVLINK_CMD_PARAM_GET, |
5369 | NETLINK_CB(cb->skb).portid, | |
5370 | cb->nlh->nlmsg_seq, | |
5371 | NLM_F_MULTI); | |
82274d07 JK |
5372 | if (err == -EOPNOTSUPP) { |
5373 | err = 0; | |
5374 | } else if (err) { | |
7715023a | 5375 | devl_unlock(devlink); |
437ebfd9 | 5376 | devlink_put(devlink); |
45f05def MS |
5377 | goto out; |
5378 | } | |
5379 | idx++; | |
5380 | } | |
7715023a | 5381 | devl_unlock(devlink); |
437ebfd9 | 5382 | devlink_put(devlink); |
45f05def MS |
5383 | } |
5384 | out: | |
c62c2cfb JP |
5385 | if (err != -EMSGSIZE) |
5386 | return err; | |
5387 | ||
45f05def MS |
5388 | cb->args[0] = idx; |
5389 | return msg->len; | |
5390 | } | |
5391 | ||
e3b7ca18 MS |
5392 | static int |
5393 | devlink_param_type_get_from_info(struct genl_info *info, | |
5394 | enum devlink_param_type *param_type) | |
5395 | { | |
5396 | if (!info->attrs[DEVLINK_ATTR_PARAM_TYPE]) | |
5397 | return -EINVAL; | |
5398 | ||
5399 | switch (nla_get_u8(info->attrs[DEVLINK_ATTR_PARAM_TYPE])) { | |
5400 | case NLA_U8: | |
5401 | *param_type = DEVLINK_PARAM_TYPE_U8; | |
5402 | break; | |
5403 | case NLA_U16: | |
5404 | *param_type = DEVLINK_PARAM_TYPE_U16; | |
5405 | break; | |
5406 | case NLA_U32: | |
5407 | *param_type = DEVLINK_PARAM_TYPE_U32; | |
5408 | break; | |
5409 | case NLA_STRING: | |
5410 | *param_type = DEVLINK_PARAM_TYPE_STRING; | |
5411 | break; | |
5412 | case NLA_FLAG: | |
5413 | *param_type = DEVLINK_PARAM_TYPE_BOOL; | |
5414 | break; | |
5415 | default: | |
5416 | return -EINVAL; | |
5417 | } | |
5418 | ||
5419 | return 0; | |
5420 | } | |
5421 | ||
5422 | static int | |
5423 | devlink_param_value_get_from_info(const struct devlink_param *param, | |
5424 | struct genl_info *info, | |
5425 | union devlink_param_value *value) | |
5426 | { | |
8750939b | 5427 | struct nlattr *param_data; |
f355cfcd MS |
5428 | int len; |
5429 | ||
8750939b JK |
5430 | param_data = info->attrs[DEVLINK_ATTR_PARAM_VALUE_DATA]; |
5431 | ||
5432 | if (param->type != DEVLINK_PARAM_TYPE_BOOL && !param_data) | |
e3b7ca18 MS |
5433 | return -EINVAL; |
5434 | ||
5435 | switch (param->type) { | |
5436 | case DEVLINK_PARAM_TYPE_U8: | |
8750939b JK |
5437 | if (nla_len(param_data) != sizeof(u8)) |
5438 | return -EINVAL; | |
5439 | value->vu8 = nla_get_u8(param_data); | |
e3b7ca18 MS |
5440 | break; |
5441 | case DEVLINK_PARAM_TYPE_U16: | |
8750939b JK |
5442 | if (nla_len(param_data) != sizeof(u16)) |
5443 | return -EINVAL; | |
5444 | value->vu16 = nla_get_u16(param_data); | |
e3b7ca18 MS |
5445 | break; |
5446 | case DEVLINK_PARAM_TYPE_U32: | |
8750939b JK |
5447 | if (nla_len(param_data) != sizeof(u32)) |
5448 | return -EINVAL; | |
5449 | value->vu32 = nla_get_u32(param_data); | |
e3b7ca18 MS |
5450 | break; |
5451 | case DEVLINK_PARAM_TYPE_STRING: | |
8750939b JK |
5452 | len = strnlen(nla_data(param_data), nla_len(param_data)); |
5453 | if (len == nla_len(param_data) || | |
bde74ad1 | 5454 | len >= __DEVLINK_PARAM_MAX_STRING_VALUE) |
e3b7ca18 | 5455 | return -EINVAL; |
8750939b | 5456 | strcpy(value->vstr, nla_data(param_data)); |
e3b7ca18 MS |
5457 | break; |
5458 | case DEVLINK_PARAM_TYPE_BOOL: | |
8750939b JK |
5459 | if (param_data && nla_len(param_data)) |
5460 | return -EINVAL; | |
5461 | value->vbool = nla_get_flag(param_data); | |
e3b7ca18 MS |
5462 | break; |
5463 | } | |
5464 | return 0; | |
5465 | } | |
5466 | ||
45f05def | 5467 | static struct devlink_param_item * |
f4601dee | 5468 | devlink_param_get_from_info(struct list_head *param_list, |
45f05def MS |
5469 | struct genl_info *info) |
5470 | { | |
5471 | char *param_name; | |
5472 | ||
5473 | if (!info->attrs[DEVLINK_ATTR_PARAM_NAME]) | |
5474 | return NULL; | |
5475 | ||
5476 | param_name = nla_data(info->attrs[DEVLINK_ATTR_PARAM_NAME]); | |
f4601dee | 5477 | return devlink_param_find_by_name(param_list, param_name); |
45f05def MS |
5478 | } |
5479 | ||
5480 | static int devlink_nl_cmd_param_get_doit(struct sk_buff *skb, | |
5481 | struct genl_info *info) | |
5482 | { | |
5483 | struct devlink *devlink = info->user_ptr[0]; | |
5484 | struct devlink_param_item *param_item; | |
5485 | struct sk_buff *msg; | |
5486 | int err; | |
5487 | ||
f4601dee | 5488 | param_item = devlink_param_get_from_info(&devlink->param_list, info); |
45f05def MS |
5489 | if (!param_item) |
5490 | return -EINVAL; | |
5491 | ||
5492 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
5493 | if (!msg) | |
5494 | return -ENOMEM; | |
5495 | ||
f4601dee | 5496 | err = devlink_nl_param_fill(msg, devlink, 0, param_item, |
45f05def MS |
5497 | DEVLINK_CMD_PARAM_GET, |
5498 | info->snd_portid, info->snd_seq, 0); | |
5499 | if (err) { | |
5500 | nlmsg_free(msg); | |
5501 | return err; | |
5502 | } | |
5503 | ||
5504 | return genlmsg_reply(msg, info); | |
5505 | } | |
5506 | ||
9c54873b | 5507 | static int __devlink_nl_cmd_param_set_doit(struct devlink *devlink, |
c1e5786d | 5508 | unsigned int port_index, |
9c54873b VV |
5509 | struct list_head *param_list, |
5510 | struct genl_info *info, | |
5511 | enum devlink_command cmd) | |
e3b7ca18 | 5512 | { |
e3b7ca18 MS |
5513 | enum devlink_param_type param_type; |
5514 | struct devlink_param_gset_ctx ctx; | |
5515 | enum devlink_param_cmode cmode; | |
5516 | struct devlink_param_item *param_item; | |
5517 | const struct devlink_param *param; | |
5518 | union devlink_param_value value; | |
5519 | int err = 0; | |
5520 | ||
9c54873b | 5521 | param_item = devlink_param_get_from_info(param_list, info); |
e3b7ca18 MS |
5522 | if (!param_item) |
5523 | return -EINVAL; | |
5524 | param = param_item->param; | |
5525 | err = devlink_param_type_get_from_info(info, ¶m_type); | |
5526 | if (err) | |
5527 | return err; | |
5528 | if (param_type != param->type) | |
5529 | return -EINVAL; | |
5530 | err = devlink_param_value_get_from_info(param, info, &value); | |
5531 | if (err) | |
5532 | return err; | |
5533 | if (param->validate) { | |
5534 | err = param->validate(devlink, param->id, value, info->extack); | |
5535 | if (err) | |
5536 | return err; | |
5537 | } | |
5538 | ||
5539 | if (!info->attrs[DEVLINK_ATTR_PARAM_VALUE_CMODE]) | |
5540 | return -EINVAL; | |
5541 | cmode = nla_get_u8(info->attrs[DEVLINK_ATTR_PARAM_VALUE_CMODE]); | |
5542 | if (!devlink_param_cmode_is_supported(param, cmode)) | |
5543 | return -EOPNOTSUPP; | |
5544 | ||
5545 | if (cmode == DEVLINK_PARAM_CMODE_DRIVERINIT) { | |
1276534c MS |
5546 | if (param->type == DEVLINK_PARAM_TYPE_STRING) |
5547 | strcpy(param_item->driverinit_value.vstr, value.vstr); | |
5548 | else | |
5549 | param_item->driverinit_value = value; | |
e3b7ca18 MS |
5550 | param_item->driverinit_value_valid = true; |
5551 | } else { | |
5552 | if (!param->set) | |
5553 | return -EOPNOTSUPP; | |
5554 | ctx.val = value; | |
5555 | ctx.cmode = cmode; | |
5556 | err = devlink_param_set(devlink, param, &ctx); | |
5557 | if (err) | |
5558 | return err; | |
5559 | } | |
5560 | ||
c1e5786d | 5561 | devlink_param_notify(devlink, port_index, param_item, cmd); |
e3b7ca18 MS |
5562 | return 0; |
5563 | } | |
5564 | ||
9c54873b VV |
5565 | static int devlink_nl_cmd_param_set_doit(struct sk_buff *skb, |
5566 | struct genl_info *info) | |
5567 | { | |
5568 | struct devlink *devlink = info->user_ptr[0]; | |
5569 | ||
c1e5786d | 5570 | return __devlink_nl_cmd_param_set_doit(devlink, 0, &devlink->param_list, |
9c54873b VV |
5571 | info, DEVLINK_CMD_PARAM_NEW); |
5572 | } | |
5573 | ||
f4601dee VV |
5574 | static int devlink_nl_cmd_port_param_get_dumpit(struct sk_buff *msg, |
5575 | struct netlink_callback *cb) | |
5576 | { | |
5577 | struct devlink_param_item *param_item; | |
5578 | struct devlink_port *devlink_port; | |
5579 | struct devlink *devlink; | |
5580 | int start = cb->args[0]; | |
11a861d7 | 5581 | unsigned long index; |
f4601dee | 5582 | int idx = 0; |
c62c2cfb | 5583 | int err = 0; |
f4601dee | 5584 | |
294c4f57 | 5585 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
7715023a | 5586 | devl_lock(devlink); |
f4601dee VV |
5587 | list_for_each_entry(devlink_port, &devlink->port_list, list) { |
5588 | list_for_each_entry(param_item, | |
5589 | &devlink_port->param_list, list) { | |
5590 | if (idx < start) { | |
5591 | idx++; | |
5592 | continue; | |
5593 | } | |
5594 | err = devlink_nl_param_fill(msg, | |
5595 | devlink_port->devlink, | |
5596 | devlink_port->index, param_item, | |
5597 | DEVLINK_CMD_PORT_PARAM_GET, | |
5598 | NETLINK_CB(cb->skb).portid, | |
5599 | cb->nlh->nlmsg_seq, | |
5600 | NLM_F_MULTI); | |
82274d07 JK |
5601 | if (err == -EOPNOTSUPP) { |
5602 | err = 0; | |
5603 | } else if (err) { | |
7715023a | 5604 | devl_unlock(devlink); |
437ebfd9 | 5605 | devlink_put(devlink); |
f4601dee VV |
5606 | goto out; |
5607 | } | |
5608 | idx++; | |
5609 | } | |
5610 | } | |
7715023a | 5611 | devl_unlock(devlink); |
437ebfd9 | 5612 | devlink_put(devlink); |
f4601dee VV |
5613 | } |
5614 | out: | |
c62c2cfb JP |
5615 | if (err != -EMSGSIZE) |
5616 | return err; | |
5617 | ||
f4601dee VV |
5618 | cb->args[0] = idx; |
5619 | return msg->len; | |
5620 | } | |
5621 | ||
5622 | static int devlink_nl_cmd_port_param_get_doit(struct sk_buff *skb, | |
5623 | struct genl_info *info) | |
5624 | { | |
7e238de8 | 5625 | struct devlink_port *devlink_port = info->user_ptr[1]; |
f4601dee VV |
5626 | struct devlink_param_item *param_item; |
5627 | struct sk_buff *msg; | |
5628 | int err; | |
5629 | ||
5630 | param_item = devlink_param_get_from_info(&devlink_port->param_list, | |
5631 | info); | |
5632 | if (!param_item) | |
5633 | return -EINVAL; | |
5634 | ||
5635 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
5636 | if (!msg) | |
5637 | return -ENOMEM; | |
5638 | ||
5639 | err = devlink_nl_param_fill(msg, devlink_port->devlink, | |
5640 | devlink_port->index, param_item, | |
5641 | DEVLINK_CMD_PORT_PARAM_GET, | |
5642 | info->snd_portid, info->snd_seq, 0); | |
5643 | if (err) { | |
5644 | nlmsg_free(msg); | |
5645 | return err; | |
5646 | } | |
5647 | ||
5648 | return genlmsg_reply(msg, info); | |
5649 | } | |
5650 | ||
9c54873b VV |
5651 | static int devlink_nl_cmd_port_param_set_doit(struct sk_buff *skb, |
5652 | struct genl_info *info) | |
5653 | { | |
7e238de8 | 5654 | struct devlink_port *devlink_port = info->user_ptr[1]; |
9c54873b VV |
5655 | |
5656 | return __devlink_nl_cmd_param_set_doit(devlink_port->devlink, | |
c1e5786d VV |
5657 | devlink_port->index, |
5658 | &devlink_port->param_list, info, | |
5659 | DEVLINK_CMD_PORT_PARAM_NEW); | |
9c54873b VV |
5660 | } |
5661 | ||
a006d467 AV |
5662 | static int devlink_nl_region_snapshot_id_put(struct sk_buff *msg, |
5663 | struct devlink *devlink, | |
5664 | struct devlink_snapshot *snapshot) | |
5665 | { | |
5666 | struct nlattr *snap_attr; | |
5667 | int err; | |
5668 | ||
ae0be8de | 5669 | snap_attr = nla_nest_start_noflag(msg, DEVLINK_ATTR_REGION_SNAPSHOT); |
a006d467 AV |
5670 | if (!snap_attr) |
5671 | return -EINVAL; | |
5672 | ||
5673 | err = nla_put_u32(msg, DEVLINK_ATTR_REGION_SNAPSHOT_ID, snapshot->id); | |
5674 | if (err) | |
5675 | goto nla_put_failure; | |
5676 | ||
5677 | nla_nest_end(msg, snap_attr); | |
5678 | return 0; | |
5679 | ||
5680 | nla_put_failure: | |
5681 | nla_nest_cancel(msg, snap_attr); | |
5682 | return err; | |
5683 | } | |
5684 | ||
5685 | static int devlink_nl_region_snapshots_id_put(struct sk_buff *msg, | |
5686 | struct devlink *devlink, | |
5687 | struct devlink_region *region) | |
5688 | { | |
5689 | struct devlink_snapshot *snapshot; | |
5690 | struct nlattr *snapshots_attr; | |
5691 | int err; | |
5692 | ||
ae0be8de MK |
5693 | snapshots_attr = nla_nest_start_noflag(msg, |
5694 | DEVLINK_ATTR_REGION_SNAPSHOTS); | |
a006d467 AV |
5695 | if (!snapshots_attr) |
5696 | return -EINVAL; | |
5697 | ||
5698 | list_for_each_entry(snapshot, ®ion->snapshot_list, list) { | |
5699 | err = devlink_nl_region_snapshot_id_put(msg, devlink, snapshot); | |
5700 | if (err) | |
5701 | goto nla_put_failure; | |
5702 | } | |
5703 | ||
5704 | nla_nest_end(msg, snapshots_attr); | |
5705 | return 0; | |
5706 | ||
5707 | nla_put_failure: | |
5708 | nla_nest_cancel(msg, snapshots_attr); | |
5709 | return err; | |
5710 | } | |
5711 | ||
d8db7ea5 AV |
5712 | static int devlink_nl_region_fill(struct sk_buff *msg, struct devlink *devlink, |
5713 | enum devlink_command cmd, u32 portid, | |
5714 | u32 seq, int flags, | |
5715 | struct devlink_region *region) | |
5716 | { | |
5717 | void *hdr; | |
5718 | int err; | |
5719 | ||
5720 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
5721 | if (!hdr) | |
5722 | return -EMSGSIZE; | |
5723 | ||
5724 | err = devlink_nl_put_handle(msg, devlink); | |
5725 | if (err) | |
5726 | goto nla_put_failure; | |
5727 | ||
6c211809 DC |
5728 | if (region->port) { |
5729 | err = nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, | |
5730 | region->port->index); | |
5731 | if (err) | |
544e7c33 | 5732 | goto nla_put_failure; |
6c211809 | 5733 | } |
544e7c33 | 5734 | |
e8937681 | 5735 | err = nla_put_string(msg, DEVLINK_ATTR_REGION_NAME, region->ops->name); |
d8db7ea5 AV |
5736 | if (err) |
5737 | goto nla_put_failure; | |
5738 | ||
5739 | err = nla_put_u64_64bit(msg, DEVLINK_ATTR_REGION_SIZE, | |
5740 | region->size, | |
5741 | DEVLINK_ATTR_PAD); | |
5742 | if (err) | |
5743 | goto nla_put_failure; | |
5744 | ||
a70e3f02 JK |
5745 | err = nla_put_u32(msg, DEVLINK_ATTR_REGION_MAX_SNAPSHOTS, |
5746 | region->max_snapshots); | |
5747 | if (err) | |
5748 | goto nla_put_failure; | |
5749 | ||
a006d467 AV |
5750 | err = devlink_nl_region_snapshots_id_put(msg, devlink, region); |
5751 | if (err) | |
5752 | goto nla_put_failure; | |
5753 | ||
d8db7ea5 AV |
5754 | genlmsg_end(msg, hdr); |
5755 | return 0; | |
5756 | ||
5757 | nla_put_failure: | |
5758 | genlmsg_cancel(msg, hdr); | |
5759 | return err; | |
5760 | } | |
5761 | ||
dd86fec7 JK |
5762 | static struct sk_buff * |
5763 | devlink_nl_region_notify_build(struct devlink_region *region, | |
5764 | struct devlink_snapshot *snapshot, | |
5765 | enum devlink_command cmd, u32 portid, u32 seq) | |
866319bb AV |
5766 | { |
5767 | struct devlink *devlink = region->devlink; | |
5768 | struct sk_buff *msg; | |
5769 | void *hdr; | |
5770 | int err; | |
5771 | ||
866319bb AV |
5772 | |
5773 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
5774 | if (!msg) | |
dd86fec7 | 5775 | return ERR_PTR(-ENOMEM); |
866319bb | 5776 | |
dd86fec7 JK |
5777 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, 0, cmd); |
5778 | if (!hdr) { | |
5779 | err = -EMSGSIZE; | |
866319bb | 5780 | goto out_free_msg; |
dd86fec7 | 5781 | } |
866319bb AV |
5782 | |
5783 | err = devlink_nl_put_handle(msg, devlink); | |
5784 | if (err) | |
5785 | goto out_cancel_msg; | |
5786 | ||
6c211809 DC |
5787 | if (region->port) { |
5788 | err = nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, | |
5789 | region->port->index); | |
5790 | if (err) | |
544e7c33 | 5791 | goto out_cancel_msg; |
6c211809 | 5792 | } |
544e7c33 | 5793 | |
866319bb | 5794 | err = nla_put_string(msg, DEVLINK_ATTR_REGION_NAME, |
e8937681 | 5795 | region->ops->name); |
866319bb AV |
5796 | if (err) |
5797 | goto out_cancel_msg; | |
5798 | ||
5799 | if (snapshot) { | |
5800 | err = nla_put_u32(msg, DEVLINK_ATTR_REGION_SNAPSHOT_ID, | |
5801 | snapshot->id); | |
5802 | if (err) | |
5803 | goto out_cancel_msg; | |
5804 | } else { | |
5805 | err = nla_put_u64_64bit(msg, DEVLINK_ATTR_REGION_SIZE, | |
5806 | region->size, DEVLINK_ATTR_PAD); | |
5807 | if (err) | |
5808 | goto out_cancel_msg; | |
5809 | } | |
5810 | genlmsg_end(msg, hdr); | |
5811 | ||
dd86fec7 | 5812 | return msg; |
866319bb AV |
5813 | |
5814 | out_cancel_msg: | |
5815 | genlmsg_cancel(msg, hdr); | |
5816 | out_free_msg: | |
5817 | nlmsg_free(msg); | |
dd86fec7 JK |
5818 | return ERR_PTR(err); |
5819 | } | |
5820 | ||
5821 | static void devlink_nl_region_notify(struct devlink_region *region, | |
5822 | struct devlink_snapshot *snapshot, | |
5823 | enum devlink_command cmd) | |
5824 | { | |
cf530217 | 5825 | struct devlink *devlink = region->devlink; |
dd86fec7 JK |
5826 | struct sk_buff *msg; |
5827 | ||
5828 | WARN_ON(cmd != DEVLINK_CMD_REGION_NEW && cmd != DEVLINK_CMD_REGION_DEL); | |
ef91abfb LR |
5829 | if (!xa_get_mark(&devlinks, devlink->index, DEVLINK_REGISTERED)) |
5830 | return; | |
dd86fec7 JK |
5831 | |
5832 | msg = devlink_nl_region_notify_build(region, snapshot, cmd, 0, 0); | |
5833 | if (IS_ERR(msg)) | |
5834 | return; | |
5835 | ||
cf530217 LR |
5836 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), msg, |
5837 | 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
866319bb AV |
5838 | } |
5839 | ||
12102436 JK |
5840 | /** |
5841 | * __devlink_snapshot_id_increment - Increment number of snapshots using an id | |
5842 | * @devlink: devlink instance | |
5843 | * @id: the snapshot id | |
5844 | * | |
5845 | * Track when a new snapshot begins using an id. Load the count for the | |
5846 | * given id from the snapshot xarray, increment it, and store it back. | |
5847 | * | |
5848 | * Called when a new snapshot is created with the given id. | |
5849 | * | |
5850 | * The id *must* have been previously allocated by | |
5851 | * devlink_region_snapshot_id_get(). | |
5852 | * | |
5853 | * Returns 0 on success, or an error on failure. | |
5854 | */ | |
5855 | static int __devlink_snapshot_id_increment(struct devlink *devlink, u32 id) | |
5856 | { | |
5857 | unsigned long count; | |
5858 | void *p; | |
5502e871 | 5859 | int err; |
12102436 | 5860 | |
5502e871 | 5861 | xa_lock(&devlink->snapshot_ids); |
12102436 | 5862 | p = xa_load(&devlink->snapshot_ids, id); |
5502e871 JP |
5863 | if (WARN_ON(!p)) { |
5864 | err = -EINVAL; | |
5865 | goto unlock; | |
5866 | } | |
12102436 | 5867 | |
5502e871 JP |
5868 | if (WARN_ON(!xa_is_value(p))) { |
5869 | err = -EINVAL; | |
5870 | goto unlock; | |
5871 | } | |
12102436 JK |
5872 | |
5873 | count = xa_to_value(p); | |
5874 | count++; | |
5875 | ||
5502e871 JP |
5876 | err = xa_err(__xa_store(&devlink->snapshot_ids, id, xa_mk_value(count), |
5877 | GFP_ATOMIC)); | |
5878 | unlock: | |
5879 | xa_unlock(&devlink->snapshot_ids); | |
5880 | return err; | |
12102436 JK |
5881 | } |
5882 | ||
5883 | /** | |
5884 | * __devlink_snapshot_id_decrement - Decrease number of snapshots using an id | |
5885 | * @devlink: devlink instance | |
5886 | * @id: the snapshot id | |
5887 | * | |
5888 | * Track when a snapshot is deleted and stops using an id. Load the count | |
5889 | * for the given id from the snapshot xarray, decrement it, and store it | |
5890 | * back. | |
5891 | * | |
5892 | * If the count reaches zero, erase this id from the xarray, freeing it | |
5893 | * up for future re-use by devlink_region_snapshot_id_get(). | |
5894 | * | |
5895 | * Called when a snapshot using the given id is deleted, and when the | |
5896 | * initial allocator of the id is finished using it. | |
5897 | */ | |
5898 | static void __devlink_snapshot_id_decrement(struct devlink *devlink, u32 id) | |
5899 | { | |
5900 | unsigned long count; | |
5901 | void *p; | |
5902 | ||
5502e871 | 5903 | xa_lock(&devlink->snapshot_ids); |
12102436 JK |
5904 | p = xa_load(&devlink->snapshot_ids, id); |
5905 | if (WARN_ON(!p)) | |
5502e871 | 5906 | goto unlock; |
12102436 JK |
5907 | |
5908 | if (WARN_ON(!xa_is_value(p))) | |
5502e871 | 5909 | goto unlock; |
12102436 JK |
5910 | |
5911 | count = xa_to_value(p); | |
5912 | ||
5913 | if (count > 1) { | |
5914 | count--; | |
5502e871 JP |
5915 | __xa_store(&devlink->snapshot_ids, id, xa_mk_value(count), |
5916 | GFP_ATOMIC); | |
12102436 JK |
5917 | } else { |
5918 | /* If this was the last user, we can erase this id */ | |
5502e871 | 5919 | __xa_erase(&devlink->snapshot_ids, id); |
12102436 | 5920 | } |
5502e871 JP |
5921 | unlock: |
5922 | xa_unlock(&devlink->snapshot_ids); | |
12102436 JK |
5923 | } |
5924 | ||
b9a17abf JK |
5925 | /** |
5926 | * __devlink_snapshot_id_insert - Insert a specific snapshot ID | |
5927 | * @devlink: devlink instance | |
5928 | * @id: the snapshot id | |
5929 | * | |
5930 | * Mark the given snapshot id as used by inserting a zero value into the | |
5931 | * snapshot xarray. | |
5932 | * | |
5933 | * This must be called while holding the devlink instance lock. Unlike | |
5934 | * devlink_snapshot_id_get, the initial reference count is zero, not one. | |
5935 | * It is expected that the id will immediately be used before | |
5936 | * releasing the devlink instance lock. | |
5937 | * | |
5938 | * Returns zero on success, or an error code if the snapshot id could not | |
5939 | * be inserted. | |
5940 | */ | |
5941 | static int __devlink_snapshot_id_insert(struct devlink *devlink, u32 id) | |
5942 | { | |
5502e871 | 5943 | int err; |
b9a17abf | 5944 | |
5502e871 JP |
5945 | xa_lock(&devlink->snapshot_ids); |
5946 | if (xa_load(&devlink->snapshot_ids, id)) { | |
5947 | xa_unlock(&devlink->snapshot_ids); | |
b9a17abf | 5948 | return -EEXIST; |
5502e871 JP |
5949 | } |
5950 | err = xa_err(__xa_store(&devlink->snapshot_ids, id, xa_mk_value(0), | |
5951 | GFP_ATOMIC)); | |
5952 | xa_unlock(&devlink->snapshot_ids); | |
5953 | return err; | |
b9a17abf JK |
5954 | } |
5955 | ||
7000108f JK |
5956 | /** |
5957 | * __devlink_region_snapshot_id_get - get snapshot ID | |
5958 | * @devlink: devlink instance | |
7ef19d3b | 5959 | * @id: storage to return snapshot id |
7000108f | 5960 | * |
7ef19d3b JK |
5961 | * Allocates a new snapshot id. Returns zero on success, or a negative |
5962 | * error on failure. Must be called while holding the devlink instance | |
5963 | * lock. | |
12102436 JK |
5964 | * |
5965 | * Snapshot IDs are tracked using an xarray which stores the number of | |
5966 | * users of the snapshot id. | |
5967 | * | |
5968 | * Note that the caller of this function counts as a 'user', in order to | |
5969 | * avoid race conditions. The caller must release its hold on the | |
5970 | * snapshot by using devlink_region_snapshot_id_put. | |
7000108f | 5971 | */ |
7ef19d3b | 5972 | static int __devlink_region_snapshot_id_get(struct devlink *devlink, u32 *id) |
7000108f | 5973 | { |
12102436 JK |
5974 | return xa_alloc(&devlink->snapshot_ids, id, xa_mk_value(1), |
5975 | xa_limit_32b, GFP_KERNEL); | |
7000108f JK |
5976 | } |
5977 | ||
cf80faee JK |
5978 | /** |
5979 | * __devlink_region_snapshot_create - create a new snapshot | |
5980 | * This will add a new snapshot of a region. The snapshot | |
5981 | * will be stored on the region struct and can be accessed | |
5982 | * from devlink. This is useful for future analyses of snapshots. | |
5983 | * Multiple snapshots can be created on a region. | |
5984 | * The @snapshot_id should be obtained using the getter function. | |
5985 | * | |
2dec18ad | 5986 | * Must be called only while holding the region snapshot lock. |
cf80faee JK |
5987 | * |
5988 | * @region: devlink region of the snapshot | |
5989 | * @data: snapshot data | |
5990 | * @snapshot_id: snapshot id to be created | |
5991 | */ | |
5992 | static int | |
5993 | __devlink_region_snapshot_create(struct devlink_region *region, | |
5994 | u8 *data, u32 snapshot_id) | |
5995 | { | |
5996 | struct devlink *devlink = region->devlink; | |
5997 | struct devlink_snapshot *snapshot; | |
12102436 | 5998 | int err; |
cf80faee | 5999 | |
2dec18ad | 6000 | lockdep_assert_held(®ion->snapshot_lock); |
cf80faee JK |
6001 | |
6002 | /* check if region can hold one more snapshot */ | |
6003 | if (region->cur_snapshots == region->max_snapshots) | |
47a39f61 | 6004 | return -ENOSPC; |
cf80faee JK |
6005 | |
6006 | if (devlink_region_snapshot_get_by_id(region, snapshot_id)) | |
6007 | return -EEXIST; | |
6008 | ||
6009 | snapshot = kzalloc(sizeof(*snapshot), GFP_KERNEL); | |
6010 | if (!snapshot) | |
6011 | return -ENOMEM; | |
6012 | ||
12102436 JK |
6013 | err = __devlink_snapshot_id_increment(devlink, snapshot_id); |
6014 | if (err) | |
6015 | goto err_snapshot_id_increment; | |
6016 | ||
cf80faee JK |
6017 | snapshot->id = snapshot_id; |
6018 | snapshot->region = region; | |
6019 | snapshot->data = data; | |
6020 | ||
6021 | list_add_tail(&snapshot->list, ®ion->snapshot_list); | |
6022 | ||
6023 | region->cur_snapshots++; | |
6024 | ||
6025 | devlink_nl_region_notify(region, snapshot, DEVLINK_CMD_REGION_NEW); | |
6026 | return 0; | |
12102436 JK |
6027 | |
6028 | err_snapshot_id_increment: | |
6029 | kfree(snapshot); | |
6030 | return err; | |
cf80faee JK |
6031 | } |
6032 | ||
92b49822 JP |
6033 | static void devlink_region_snapshot_del(struct devlink_region *region, |
6034 | struct devlink_snapshot *snapshot) | |
6035 | { | |
12102436 JK |
6036 | struct devlink *devlink = region->devlink; |
6037 | ||
2dec18ad | 6038 | lockdep_assert_held(®ion->snapshot_lock); |
12102436 | 6039 | |
92b49822 JP |
6040 | devlink_nl_region_notify(region, snapshot, DEVLINK_CMD_REGION_DEL); |
6041 | region->cur_snapshots--; | |
6042 | list_del(&snapshot->list); | |
a0a09f6b | 6043 | region->ops->destructor(snapshot->data); |
12102436 | 6044 | __devlink_snapshot_id_decrement(devlink, snapshot->id); |
92b49822 JP |
6045 | kfree(snapshot); |
6046 | } | |
6047 | ||
d8db7ea5 AV |
6048 | static int devlink_nl_cmd_region_get_doit(struct sk_buff *skb, |
6049 | struct genl_info *info) | |
6050 | { | |
6051 | struct devlink *devlink = info->user_ptr[0]; | |
544e7c33 | 6052 | struct devlink_port *port = NULL; |
d8db7ea5 AV |
6053 | struct devlink_region *region; |
6054 | const char *region_name; | |
6055 | struct sk_buff *msg; | |
544e7c33 | 6056 | unsigned int index; |
d8db7ea5 AV |
6057 | int err; |
6058 | ||
6059 | if (!info->attrs[DEVLINK_ATTR_REGION_NAME]) | |
6060 | return -EINVAL; | |
6061 | ||
544e7c33 AL |
6062 | if (info->attrs[DEVLINK_ATTR_PORT_INDEX]) { |
6063 | index = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_INDEX]); | |
6064 | ||
6065 | port = devlink_port_get_by_index(devlink, index); | |
6066 | if (!port) | |
6067 | return -ENODEV; | |
6068 | } | |
6069 | ||
d8db7ea5 | 6070 | region_name = nla_data(info->attrs[DEVLINK_ATTR_REGION_NAME]); |
544e7c33 AL |
6071 | if (port) |
6072 | region = devlink_port_region_get_by_name(port, region_name); | |
6073 | else | |
6074 | region = devlink_region_get_by_name(devlink, region_name); | |
6075 | ||
d8db7ea5 AV |
6076 | if (!region) |
6077 | return -EINVAL; | |
6078 | ||
6079 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
6080 | if (!msg) | |
6081 | return -ENOMEM; | |
6082 | ||
6083 | err = devlink_nl_region_fill(msg, devlink, DEVLINK_CMD_REGION_GET, | |
6084 | info->snd_portid, info->snd_seq, 0, | |
6085 | region); | |
6086 | if (err) { | |
6087 | nlmsg_free(msg); | |
6088 | return err; | |
6089 | } | |
6090 | ||
6091 | return genlmsg_reply(msg, info); | |
6092 | } | |
6093 | ||
544e7c33 AL |
6094 | static int devlink_nl_cmd_region_get_port_dumpit(struct sk_buff *msg, |
6095 | struct netlink_callback *cb, | |
6096 | struct devlink_port *port, | |
6097 | int *idx, | |
6098 | int start) | |
6099 | { | |
6100 | struct devlink_region *region; | |
6101 | int err = 0; | |
6102 | ||
6103 | list_for_each_entry(region, &port->region_list, list) { | |
6104 | if (*idx < start) { | |
6105 | (*idx)++; | |
6106 | continue; | |
6107 | } | |
6108 | err = devlink_nl_region_fill(msg, port->devlink, | |
6109 | DEVLINK_CMD_REGION_GET, | |
6110 | NETLINK_CB(cb->skb).portid, | |
6111 | cb->nlh->nlmsg_seq, | |
6112 | NLM_F_MULTI, region); | |
6113 | if (err) | |
6114 | goto out; | |
6115 | (*idx)++; | |
6116 | } | |
6117 | ||
6118 | out: | |
6119 | return err; | |
6120 | } | |
6121 | ||
6122 | static int devlink_nl_cmd_region_get_devlink_dumpit(struct sk_buff *msg, | |
6123 | struct netlink_callback *cb, | |
6124 | struct devlink *devlink, | |
6125 | int *idx, | |
6126 | int start) | |
6127 | { | |
6128 | struct devlink_region *region; | |
6129 | struct devlink_port *port; | |
6130 | int err = 0; | |
6131 | ||
7715023a | 6132 | devl_lock(devlink); |
544e7c33 AL |
6133 | list_for_each_entry(region, &devlink->region_list, list) { |
6134 | if (*idx < start) { | |
6135 | (*idx)++; | |
6136 | continue; | |
6137 | } | |
6138 | err = devlink_nl_region_fill(msg, devlink, | |
6139 | DEVLINK_CMD_REGION_GET, | |
6140 | NETLINK_CB(cb->skb).portid, | |
6141 | cb->nlh->nlmsg_seq, | |
6142 | NLM_F_MULTI, region); | |
6143 | if (err) | |
6144 | goto out; | |
6145 | (*idx)++; | |
6146 | } | |
6147 | ||
6148 | list_for_each_entry(port, &devlink->port_list, list) { | |
6149 | err = devlink_nl_cmd_region_get_port_dumpit(msg, cb, port, idx, | |
6150 | start); | |
6151 | if (err) | |
6152 | goto out; | |
6153 | } | |
6154 | ||
6155 | out: | |
7715023a | 6156 | devl_unlock(devlink); |
544e7c33 AL |
6157 | return err; |
6158 | } | |
6159 | ||
d8db7ea5 AV |
6160 | static int devlink_nl_cmd_region_get_dumpit(struct sk_buff *msg, |
6161 | struct netlink_callback *cb) | |
6162 | { | |
d8db7ea5 AV |
6163 | struct devlink *devlink; |
6164 | int start = cb->args[0]; | |
11a861d7 | 6165 | unsigned long index; |
d8db7ea5 | 6166 | int idx = 0; |
437ebfd9 | 6167 | int err = 0; |
d8db7ea5 | 6168 | |
294c4f57 | 6169 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
544e7c33 AL |
6170 | err = devlink_nl_cmd_region_get_devlink_dumpit(msg, cb, devlink, |
6171 | &idx, start); | |
437ebfd9 | 6172 | devlink_put(devlink); |
544e7c33 AL |
6173 | if (err) |
6174 | goto out; | |
d8db7ea5 AV |
6175 | } |
6176 | out: | |
d8db7ea5 AV |
6177 | cb->args[0] = idx; |
6178 | return msg->len; | |
6179 | } | |
6180 | ||
866319bb AV |
6181 | static int devlink_nl_cmd_region_del(struct sk_buff *skb, |
6182 | struct genl_info *info) | |
6183 | { | |
6184 | struct devlink *devlink = info->user_ptr[0]; | |
6185 | struct devlink_snapshot *snapshot; | |
544e7c33 | 6186 | struct devlink_port *port = NULL; |
866319bb AV |
6187 | struct devlink_region *region; |
6188 | const char *region_name; | |
544e7c33 | 6189 | unsigned int index; |
866319bb AV |
6190 | u32 snapshot_id; |
6191 | ||
6192 | if (!info->attrs[DEVLINK_ATTR_REGION_NAME] || | |
6193 | !info->attrs[DEVLINK_ATTR_REGION_SNAPSHOT_ID]) | |
6194 | return -EINVAL; | |
6195 | ||
6196 | region_name = nla_data(info->attrs[DEVLINK_ATTR_REGION_NAME]); | |
6197 | snapshot_id = nla_get_u32(info->attrs[DEVLINK_ATTR_REGION_SNAPSHOT_ID]); | |
6198 | ||
544e7c33 AL |
6199 | if (info->attrs[DEVLINK_ATTR_PORT_INDEX]) { |
6200 | index = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_INDEX]); | |
6201 | ||
6202 | port = devlink_port_get_by_index(devlink, index); | |
6203 | if (!port) | |
6204 | return -ENODEV; | |
6205 | } | |
6206 | ||
6207 | if (port) | |
6208 | region = devlink_port_region_get_by_name(port, region_name); | |
6209 | else | |
6210 | region = devlink_region_get_by_name(devlink, region_name); | |
6211 | ||
866319bb AV |
6212 | if (!region) |
6213 | return -EINVAL; | |
6214 | ||
2dec18ad | 6215 | mutex_lock(®ion->snapshot_lock); |
866319bb | 6216 | snapshot = devlink_region_snapshot_get_by_id(region, snapshot_id); |
2dec18ad JP |
6217 | if (!snapshot) { |
6218 | mutex_unlock(®ion->snapshot_lock); | |
866319bb | 6219 | return -EINVAL; |
2dec18ad | 6220 | } |
866319bb | 6221 | |
92b49822 | 6222 | devlink_region_snapshot_del(region, snapshot); |
2dec18ad | 6223 | mutex_unlock(®ion->snapshot_lock); |
866319bb AV |
6224 | return 0; |
6225 | } | |
6226 | ||
b9a17abf JK |
6227 | static int |
6228 | devlink_nl_cmd_region_new(struct sk_buff *skb, struct genl_info *info) | |
6229 | { | |
6230 | struct devlink *devlink = info->user_ptr[0]; | |
043b3e22 | 6231 | struct devlink_snapshot *snapshot; |
544e7c33 | 6232 | struct devlink_port *port = NULL; |
043b3e22 | 6233 | struct nlattr *snapshot_id_attr; |
b9a17abf JK |
6234 | struct devlink_region *region; |
6235 | const char *region_name; | |
544e7c33 | 6236 | unsigned int index; |
b9a17abf JK |
6237 | u32 snapshot_id; |
6238 | u8 *data; | |
6239 | int err; | |
6240 | ||
6241 | if (!info->attrs[DEVLINK_ATTR_REGION_NAME]) { | |
6242 | NL_SET_ERR_MSG_MOD(info->extack, "No region name provided"); | |
6243 | return -EINVAL; | |
6244 | } | |
6245 | ||
b9a17abf | 6246 | region_name = nla_data(info->attrs[DEVLINK_ATTR_REGION_NAME]); |
544e7c33 AL |
6247 | |
6248 | if (info->attrs[DEVLINK_ATTR_PORT_INDEX]) { | |
6249 | index = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_INDEX]); | |
6250 | ||
6251 | port = devlink_port_get_by_index(devlink, index); | |
6252 | if (!port) | |
6253 | return -ENODEV; | |
6254 | } | |
6255 | ||
6256 | if (port) | |
6257 | region = devlink_port_region_get_by_name(port, region_name); | |
6258 | else | |
6259 | region = devlink_region_get_by_name(devlink, region_name); | |
6260 | ||
b9a17abf JK |
6261 | if (!region) { |
6262 | NL_SET_ERR_MSG_MOD(info->extack, "The requested region does not exist"); | |
6263 | return -EINVAL; | |
6264 | } | |
6265 | ||
6266 | if (!region->ops->snapshot) { | |
6267 | NL_SET_ERR_MSG_MOD(info->extack, "The requested region does not support taking an immediate snapshot"); | |
6268 | return -EOPNOTSUPP; | |
6269 | } | |
6270 | ||
2dec18ad JP |
6271 | mutex_lock(®ion->snapshot_lock); |
6272 | ||
b9a17abf JK |
6273 | if (region->cur_snapshots == region->max_snapshots) { |
6274 | NL_SET_ERR_MSG_MOD(info->extack, "The region has reached the maximum number of stored snapshots"); | |
2dec18ad JP |
6275 | err = -ENOSPC; |
6276 | goto unlock; | |
b9a17abf JK |
6277 | } |
6278 | ||
043b3e22 JK |
6279 | snapshot_id_attr = info->attrs[DEVLINK_ATTR_REGION_SNAPSHOT_ID]; |
6280 | if (snapshot_id_attr) { | |
6281 | snapshot_id = nla_get_u32(snapshot_id_attr); | |
b9a17abf | 6282 | |
043b3e22 JK |
6283 | if (devlink_region_snapshot_get_by_id(region, snapshot_id)) { |
6284 | NL_SET_ERR_MSG_MOD(info->extack, "The requested snapshot id is already in use"); | |
2dec18ad JP |
6285 | err = -EEXIST; |
6286 | goto unlock; | |
043b3e22 | 6287 | } |
b9a17abf | 6288 | |
043b3e22 JK |
6289 | err = __devlink_snapshot_id_insert(devlink, snapshot_id); |
6290 | if (err) | |
2dec18ad | 6291 | goto unlock; |
043b3e22 JK |
6292 | } else { |
6293 | err = __devlink_region_snapshot_id_get(devlink, &snapshot_id); | |
6294 | if (err) { | |
6295 | NL_SET_ERR_MSG_MOD(info->extack, "Failed to allocate a new snapshot id"); | |
2dec18ad | 6296 | goto unlock; |
043b3e22 JK |
6297 | } |
6298 | } | |
b9a17abf | 6299 | |
544e7c33 AL |
6300 | if (port) |
6301 | err = region->port_ops->snapshot(port, region->port_ops, | |
6302 | info->extack, &data); | |
6303 | else | |
6304 | err = region->ops->snapshot(devlink, region->ops, | |
6305 | info->extack, &data); | |
b9a17abf JK |
6306 | if (err) |
6307 | goto err_snapshot_capture; | |
6308 | ||
6309 | err = __devlink_region_snapshot_create(region, data, snapshot_id); | |
6310 | if (err) | |
6311 | goto err_snapshot_create; | |
6312 | ||
043b3e22 JK |
6313 | if (!snapshot_id_attr) { |
6314 | struct sk_buff *msg; | |
6315 | ||
6316 | snapshot = devlink_region_snapshot_get_by_id(region, | |
6317 | snapshot_id); | |
80ef9286 AF |
6318 | if (WARN_ON(!snapshot)) { |
6319 | err = -EINVAL; | |
6320 | goto unlock; | |
6321 | } | |
043b3e22 JK |
6322 | |
6323 | msg = devlink_nl_region_notify_build(region, snapshot, | |
6324 | DEVLINK_CMD_REGION_NEW, | |
6325 | info->snd_portid, | |
6326 | info->snd_seq); | |
6327 | err = PTR_ERR_OR_ZERO(msg); | |
6328 | if (err) | |
6329 | goto err_notify; | |
6330 | ||
6331 | err = genlmsg_reply(msg, info); | |
6332 | if (err) | |
6333 | goto err_notify; | |
6334 | } | |
6335 | ||
2dec18ad | 6336 | mutex_unlock(®ion->snapshot_lock); |
b9a17abf JK |
6337 | return 0; |
6338 | ||
6339 | err_snapshot_create: | |
6340 | region->ops->destructor(data); | |
6341 | err_snapshot_capture: | |
6342 | __devlink_snapshot_id_decrement(devlink, snapshot_id); | |
2dec18ad | 6343 | mutex_unlock(®ion->snapshot_lock); |
b9a17abf | 6344 | return err; |
043b3e22 JK |
6345 | |
6346 | err_notify: | |
6347 | devlink_region_snapshot_del(region, snapshot); | |
2dec18ad JP |
6348 | unlock: |
6349 | mutex_unlock(®ion->snapshot_lock); | |
043b3e22 | 6350 | return err; |
b9a17abf JK |
6351 | } |
6352 | ||
4e54795a AV |
6353 | static int devlink_nl_cmd_region_read_chunk_fill(struct sk_buff *msg, |
6354 | struct devlink *devlink, | |
6355 | u8 *chunk, u32 chunk_size, | |
6356 | u64 addr) | |
6357 | { | |
6358 | struct nlattr *chunk_attr; | |
6359 | int err; | |
6360 | ||
ae0be8de | 6361 | chunk_attr = nla_nest_start_noflag(msg, DEVLINK_ATTR_REGION_CHUNK); |
4e54795a AV |
6362 | if (!chunk_attr) |
6363 | return -EINVAL; | |
6364 | ||
6365 | err = nla_put(msg, DEVLINK_ATTR_REGION_CHUNK_DATA, chunk_size, chunk); | |
6366 | if (err) | |
6367 | goto nla_put_failure; | |
6368 | ||
6369 | err = nla_put_u64_64bit(msg, DEVLINK_ATTR_REGION_CHUNK_ADDR, addr, | |
6370 | DEVLINK_ATTR_PAD); | |
6371 | if (err) | |
6372 | goto nla_put_failure; | |
6373 | ||
6374 | nla_nest_end(msg, chunk_attr); | |
6375 | return 0; | |
6376 | ||
6377 | nla_put_failure: | |
6378 | nla_nest_cancel(msg, chunk_attr); | |
6379 | return err; | |
6380 | } | |
6381 | ||
6382 | #define DEVLINK_REGION_READ_CHUNK_SIZE 256 | |
6383 | ||
6384 | static int devlink_nl_region_read_snapshot_fill(struct sk_buff *skb, | |
6385 | struct devlink *devlink, | |
6386 | struct devlink_region *region, | |
6387 | struct nlattr **attrs, | |
6388 | u64 start_offset, | |
6389 | u64 end_offset, | |
4e54795a AV |
6390 | u64 *new_offset) |
6391 | { | |
6392 | struct devlink_snapshot *snapshot; | |
6393 | u64 curr_offset = start_offset; | |
6394 | u32 snapshot_id; | |
6395 | int err = 0; | |
6396 | ||
6397 | *new_offset = start_offset; | |
6398 | ||
6399 | snapshot_id = nla_get_u32(attrs[DEVLINK_ATTR_REGION_SNAPSHOT_ID]); | |
6400 | snapshot = devlink_region_snapshot_get_by_id(region, snapshot_id); | |
6401 | if (!snapshot) | |
6402 | return -EINVAL; | |
6403 | ||
4e54795a AV |
6404 | while (curr_offset < end_offset) { |
6405 | u32 data_size; | |
6406 | u8 *data; | |
6407 | ||
6408 | if (end_offset - curr_offset < DEVLINK_REGION_READ_CHUNK_SIZE) | |
6409 | data_size = end_offset - curr_offset; | |
6410 | else | |
6411 | data_size = DEVLINK_REGION_READ_CHUNK_SIZE; | |
6412 | ||
6413 | data = &snapshot->data[curr_offset]; | |
6414 | err = devlink_nl_cmd_region_read_chunk_fill(skb, devlink, | |
6415 | data, data_size, | |
6416 | curr_offset); | |
6417 | if (err) | |
6418 | break; | |
6419 | ||
6420 | curr_offset += data_size; | |
6421 | } | |
6422 | *new_offset = curr_offset; | |
6423 | ||
6424 | return err; | |
6425 | } | |
6426 | ||
6427 | static int devlink_nl_cmd_region_read_dumpit(struct sk_buff *skb, | |
6428 | struct netlink_callback *cb) | |
6429 | { | |
ee85da53 | 6430 | const struct genl_dumpit_info *info = genl_dumpit_info(cb); |
5a46b062 | 6431 | u64 ret_offset, start_offset, end_offset = U64_MAX; |
ee85da53 | 6432 | struct nlattr **attrs = info->attrs; |
544e7c33 | 6433 | struct devlink_port *port = NULL; |
4e54795a AV |
6434 | struct devlink_region *region; |
6435 | struct nlattr *chunks_attr; | |
6436 | const char *region_name; | |
6437 | struct devlink *devlink; | |
544e7c33 | 6438 | unsigned int index; |
4e54795a AV |
6439 | void *hdr; |
6440 | int err; | |
6441 | ||
6442 | start_offset = *((u64 *)&cb->args[0]); | |
6443 | ||
4e54795a | 6444 | devlink = devlink_get_from_attrs(sock_net(cb->skb->sk), attrs); |
d3efc2a6 JP |
6445 | if (IS_ERR(devlink)) |
6446 | return PTR_ERR(devlink); | |
4e54795a | 6447 | |
7715023a | 6448 | devl_lock(devlink); |
4e54795a AV |
6449 | |
6450 | if (!attrs[DEVLINK_ATTR_REGION_NAME] || | |
fdd41ec2 PP |
6451 | !attrs[DEVLINK_ATTR_REGION_SNAPSHOT_ID]) { |
6452 | err = -EINVAL; | |
4e54795a | 6453 | goto out_unlock; |
fdd41ec2 | 6454 | } |
4e54795a | 6455 | |
544e7c33 AL |
6456 | if (info->attrs[DEVLINK_ATTR_PORT_INDEX]) { |
6457 | index = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_INDEX]); | |
6458 | ||
6459 | port = devlink_port_get_by_index(devlink, index); | |
0d8cb946 DC |
6460 | if (!port) { |
6461 | err = -ENODEV; | |
6462 | goto out_unlock; | |
6463 | } | |
544e7c33 AL |
6464 | } |
6465 | ||
4e54795a | 6466 | region_name = nla_data(attrs[DEVLINK_ATTR_REGION_NAME]); |
544e7c33 AL |
6467 | |
6468 | if (port) | |
6469 | region = devlink_port_region_get_by_name(port, region_name); | |
6470 | else | |
6471 | region = devlink_region_get_by_name(devlink, region_name); | |
6472 | ||
fdd41ec2 PP |
6473 | if (!region) { |
6474 | err = -EINVAL; | |
4e54795a | 6475 | goto out_unlock; |
fdd41ec2 | 6476 | } |
4e54795a | 6477 | |
5a46b062 JK |
6478 | if (attrs[DEVLINK_ATTR_REGION_CHUNK_ADDR] && |
6479 | attrs[DEVLINK_ATTR_REGION_CHUNK_LEN]) { | |
6480 | if (!start_offset) | |
6481 | start_offset = | |
6482 | nla_get_u64(attrs[DEVLINK_ATTR_REGION_CHUNK_ADDR]); | |
6483 | ||
6484 | end_offset = nla_get_u64(attrs[DEVLINK_ATTR_REGION_CHUNK_ADDR]); | |
6485 | end_offset += nla_get_u64(attrs[DEVLINK_ATTR_REGION_CHUNK_LEN]); | |
6486 | } | |
6487 | ||
6488 | if (end_offset > region->size) | |
6489 | end_offset = region->size; | |
6490 | ||
d5b90e99 | 6491 | /* return 0 if there is no further data to read */ |
5a46b062 | 6492 | if (start_offset == end_offset) { |
d5b90e99 JK |
6493 | err = 0; |
6494 | goto out_unlock; | |
6495 | } | |
6496 | ||
4e54795a AV |
6497 | hdr = genlmsg_put(skb, NETLINK_CB(cb->skb).portid, cb->nlh->nlmsg_seq, |
6498 | &devlink_nl_family, NLM_F_ACK | NLM_F_MULTI, | |
6499 | DEVLINK_CMD_REGION_READ); | |
fdd41ec2 PP |
6500 | if (!hdr) { |
6501 | err = -EMSGSIZE; | |
4e54795a | 6502 | goto out_unlock; |
fdd41ec2 | 6503 | } |
4e54795a AV |
6504 | |
6505 | err = devlink_nl_put_handle(skb, devlink); | |
6506 | if (err) | |
6507 | goto nla_put_failure; | |
6508 | ||
6c211809 DC |
6509 | if (region->port) { |
6510 | err = nla_put_u32(skb, DEVLINK_ATTR_PORT_INDEX, | |
6511 | region->port->index); | |
6512 | if (err) | |
544e7c33 | 6513 | goto nla_put_failure; |
6c211809 | 6514 | } |
544e7c33 | 6515 | |
4e54795a AV |
6516 | err = nla_put_string(skb, DEVLINK_ATTR_REGION_NAME, region_name); |
6517 | if (err) | |
6518 | goto nla_put_failure; | |
6519 | ||
ae0be8de | 6520 | chunks_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_REGION_CHUNKS); |
fdd41ec2 PP |
6521 | if (!chunks_attr) { |
6522 | err = -EMSGSIZE; | |
4e54795a | 6523 | goto nla_put_failure; |
fdd41ec2 | 6524 | } |
4e54795a | 6525 | |
4e54795a AV |
6526 | err = devlink_nl_region_read_snapshot_fill(skb, devlink, |
6527 | region, attrs, | |
6528 | start_offset, | |
5a46b062 | 6529 | end_offset, &ret_offset); |
4e54795a AV |
6530 | |
6531 | if (err && err != -EMSGSIZE) | |
6532 | goto nla_put_failure; | |
6533 | ||
6534 | /* Check if there was any progress done to prevent infinite loop */ | |
fdd41ec2 PP |
6535 | if (ret_offset == start_offset) { |
6536 | err = -EINVAL; | |
4e54795a | 6537 | goto nla_put_failure; |
fdd41ec2 | 6538 | } |
4e54795a AV |
6539 | |
6540 | *((u64 *)&cb->args[0]) = ret_offset; | |
6541 | ||
6542 | nla_nest_end(skb, chunks_attr); | |
6543 | genlmsg_end(skb, hdr); | |
7715023a | 6544 | devl_unlock(devlink); |
437ebfd9 | 6545 | devlink_put(devlink); |
4e54795a AV |
6546 | return skb->len; |
6547 | ||
6548 | nla_put_failure: | |
6549 | genlmsg_cancel(skb, hdr); | |
6550 | out_unlock: | |
7715023a | 6551 | devl_unlock(devlink); |
437ebfd9 | 6552 | devlink_put(devlink); |
fdd41ec2 | 6553 | return err; |
4e54795a AV |
6554 | } |
6555 | ||
c4a67a21 JK |
6556 | struct devlink_info_req { |
6557 | struct sk_buff *msg; | |
6558 | }; | |
6559 | ||
f9cf2288 JK |
6560 | int devlink_info_driver_name_put(struct devlink_info_req *req, const char *name) |
6561 | { | |
6562 | return nla_put_string(req->msg, DEVLINK_ATTR_INFO_DRIVER_NAME, name); | |
6563 | } | |
6564 | EXPORT_SYMBOL_GPL(devlink_info_driver_name_put); | |
6565 | ||
6566 | int devlink_info_serial_number_put(struct devlink_info_req *req, const char *sn) | |
6567 | { | |
6568 | return nla_put_string(req->msg, DEVLINK_ATTR_INFO_SERIAL_NUMBER, sn); | |
6569 | } | |
6570 | EXPORT_SYMBOL_GPL(devlink_info_serial_number_put); | |
6571 | ||
b5872cd0 VV |
6572 | int devlink_info_board_serial_number_put(struct devlink_info_req *req, |
6573 | const char *bsn) | |
6574 | { | |
6575 | return nla_put_string(req->msg, DEVLINK_ATTR_INFO_BOARD_SERIAL_NUMBER, | |
6576 | bsn); | |
6577 | } | |
6578 | EXPORT_SYMBOL_GPL(devlink_info_board_serial_number_put); | |
6579 | ||
fc6fae7d JK |
6580 | static int devlink_info_version_put(struct devlink_info_req *req, int attr, |
6581 | const char *version_name, | |
6582 | const char *version_value) | |
6583 | { | |
6584 | struct nlattr *nest; | |
6585 | int err; | |
6586 | ||
ae0be8de | 6587 | nest = nla_nest_start_noflag(req->msg, attr); |
fc6fae7d JK |
6588 | if (!nest) |
6589 | return -EMSGSIZE; | |
6590 | ||
6591 | err = nla_put_string(req->msg, DEVLINK_ATTR_INFO_VERSION_NAME, | |
6592 | version_name); | |
6593 | if (err) | |
6594 | goto nla_put_failure; | |
6595 | ||
6596 | err = nla_put_string(req->msg, DEVLINK_ATTR_INFO_VERSION_VALUE, | |
6597 | version_value); | |
6598 | if (err) | |
6599 | goto nla_put_failure; | |
6600 | ||
6601 | nla_nest_end(req->msg, nest); | |
6602 | ||
6603 | return 0; | |
6604 | ||
6605 | nla_put_failure: | |
6606 | nla_nest_cancel(req->msg, nest); | |
6607 | return err; | |
6608 | } | |
6609 | ||
6610 | int devlink_info_version_fixed_put(struct devlink_info_req *req, | |
6611 | const char *version_name, | |
6612 | const char *version_value) | |
6613 | { | |
6614 | return devlink_info_version_put(req, DEVLINK_ATTR_INFO_VERSION_FIXED, | |
6615 | version_name, version_value); | |
6616 | } | |
6617 | EXPORT_SYMBOL_GPL(devlink_info_version_fixed_put); | |
6618 | ||
6619 | int devlink_info_version_stored_put(struct devlink_info_req *req, | |
6620 | const char *version_name, | |
6621 | const char *version_value) | |
6622 | { | |
6623 | return devlink_info_version_put(req, DEVLINK_ATTR_INFO_VERSION_STORED, | |
6624 | version_name, version_value); | |
6625 | } | |
6626 | EXPORT_SYMBOL_GPL(devlink_info_version_stored_put); | |
6627 | ||
6628 | int devlink_info_version_running_put(struct devlink_info_req *req, | |
6629 | const char *version_name, | |
6630 | const char *version_value) | |
6631 | { | |
6632 | return devlink_info_version_put(req, DEVLINK_ATTR_INFO_VERSION_RUNNING, | |
6633 | version_name, version_value); | |
6634 | } | |
6635 | EXPORT_SYMBOL_GPL(devlink_info_version_running_put); | |
6636 | ||
f9cf2288 JK |
6637 | static int |
6638 | devlink_nl_info_fill(struct sk_buff *msg, struct devlink *devlink, | |
6639 | enum devlink_command cmd, u32 portid, | |
6640 | u32 seq, int flags, struct netlink_ext_ack *extack) | |
6641 | { | |
6642 | struct devlink_info_req req; | |
6643 | void *hdr; | |
6644 | int err; | |
6645 | ||
6646 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
6647 | if (!hdr) | |
6648 | return -EMSGSIZE; | |
6649 | ||
6650 | err = -EMSGSIZE; | |
6651 | if (devlink_nl_put_handle(msg, devlink)) | |
6652 | goto err_cancel_msg; | |
6653 | ||
6654 | req.msg = msg; | |
6655 | err = devlink->ops->info_get(devlink, &req, extack); | |
6656 | if (err) | |
6657 | goto err_cancel_msg; | |
6658 | ||
6659 | genlmsg_end(msg, hdr); | |
6660 | return 0; | |
6661 | ||
6662 | err_cancel_msg: | |
6663 | genlmsg_cancel(msg, hdr); | |
6664 | return err; | |
6665 | } | |
6666 | ||
6667 | static int devlink_nl_cmd_info_get_doit(struct sk_buff *skb, | |
6668 | struct genl_info *info) | |
6669 | { | |
6670 | struct devlink *devlink = info->user_ptr[0]; | |
6671 | struct sk_buff *msg; | |
6672 | int err; | |
6673 | ||
be6fe1d8 | 6674 | if (!devlink->ops->info_get) |
f9cf2288 JK |
6675 | return -EOPNOTSUPP; |
6676 | ||
6677 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
6678 | if (!msg) | |
6679 | return -ENOMEM; | |
6680 | ||
6681 | err = devlink_nl_info_fill(msg, devlink, DEVLINK_CMD_INFO_GET, | |
6682 | info->snd_portid, info->snd_seq, 0, | |
6683 | info->extack); | |
6684 | if (err) { | |
6685 | nlmsg_free(msg); | |
6686 | return err; | |
6687 | } | |
6688 | ||
6689 | return genlmsg_reply(msg, info); | |
6690 | } | |
6691 | ||
6692 | static int devlink_nl_cmd_info_get_dumpit(struct sk_buff *msg, | |
6693 | struct netlink_callback *cb) | |
6694 | { | |
6695 | struct devlink *devlink; | |
6696 | int start = cb->args[0]; | |
11a861d7 | 6697 | unsigned long index; |
f9cf2288 | 6698 | int idx = 0; |
c62c2cfb | 6699 | int err = 0; |
f9cf2288 | 6700 | |
294c4f57 | 6701 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
437ebfd9 LR |
6702 | if (idx < start || !devlink->ops->info_get) |
6703 | goto inc; | |
c493b09b | 6704 | |
7715023a | 6705 | devl_lock(devlink); |
f9cf2288 JK |
6706 | err = devlink_nl_info_fill(msg, devlink, DEVLINK_CMD_INFO_GET, |
6707 | NETLINK_CB(cb->skb).portid, | |
6708 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
6709 | cb->extack); | |
7715023a | 6710 | devl_unlock(devlink); |
82274d07 JK |
6711 | if (err == -EOPNOTSUPP) |
6712 | err = 0; | |
437ebfd9 LR |
6713 | else if (err) { |
6714 | devlink_put(devlink); | |
f9cf2288 | 6715 | break; |
437ebfd9 LR |
6716 | } |
6717 | inc: | |
f9cf2288 | 6718 | idx++; |
437ebfd9 | 6719 | devlink_put(devlink); |
f9cf2288 | 6720 | } |
f9cf2288 | 6721 | |
c62c2cfb JP |
6722 | if (err != -EMSGSIZE) |
6723 | return err; | |
6724 | ||
f9cf2288 JK |
6725 | cb->args[0] = idx; |
6726 | return msg->len; | |
6727 | } | |
6728 | ||
1db64e87 EBE |
6729 | struct devlink_fmsg_item { |
6730 | struct list_head list; | |
6731 | int attrtype; | |
6732 | u8 nla_type; | |
6733 | u16 len; | |
d2afb41a | 6734 | int value[]; |
1db64e87 EBE |
6735 | }; |
6736 | ||
6737 | struct devlink_fmsg { | |
6738 | struct list_head item_list; | |
573ed90a AL |
6739 | bool putting_binary; /* This flag forces enclosing of binary data |
6740 | * in an array brackets. It forces using | |
6741 | * of designated API: | |
6742 | * devlink_fmsg_binary_pair_nest_start() | |
6743 | * devlink_fmsg_binary_pair_nest_end() | |
6744 | */ | |
1db64e87 EBE |
6745 | }; |
6746 | ||
6747 | static struct devlink_fmsg *devlink_fmsg_alloc(void) | |
6748 | { | |
6749 | struct devlink_fmsg *fmsg; | |
6750 | ||
6751 | fmsg = kzalloc(sizeof(*fmsg), GFP_KERNEL); | |
6752 | if (!fmsg) | |
6753 | return NULL; | |
6754 | ||
6755 | INIT_LIST_HEAD(&fmsg->item_list); | |
6756 | ||
6757 | return fmsg; | |
6758 | } | |
6759 | ||
6760 | static void devlink_fmsg_free(struct devlink_fmsg *fmsg) | |
6761 | { | |
6762 | struct devlink_fmsg_item *item, *tmp; | |
6763 | ||
6764 | list_for_each_entry_safe(item, tmp, &fmsg->item_list, list) { | |
6765 | list_del(&item->list); | |
6766 | kfree(item); | |
6767 | } | |
6768 | kfree(fmsg); | |
6769 | } | |
6770 | ||
6771 | static int devlink_fmsg_nest_common(struct devlink_fmsg *fmsg, | |
6772 | int attrtype) | |
6773 | { | |
6774 | struct devlink_fmsg_item *item; | |
6775 | ||
6776 | item = kzalloc(sizeof(*item), GFP_KERNEL); | |
6777 | if (!item) | |
6778 | return -ENOMEM; | |
6779 | ||
6780 | item->attrtype = attrtype; | |
6781 | list_add_tail(&item->list, &fmsg->item_list); | |
6782 | ||
6783 | return 0; | |
6784 | } | |
6785 | ||
6786 | int devlink_fmsg_obj_nest_start(struct devlink_fmsg *fmsg) | |
6787 | { | |
573ed90a AL |
6788 | if (fmsg->putting_binary) |
6789 | return -EINVAL; | |
6790 | ||
1db64e87 EBE |
6791 | return devlink_fmsg_nest_common(fmsg, DEVLINK_ATTR_FMSG_OBJ_NEST_START); |
6792 | } | |
6793 | EXPORT_SYMBOL_GPL(devlink_fmsg_obj_nest_start); | |
6794 | ||
6795 | static int devlink_fmsg_nest_end(struct devlink_fmsg *fmsg) | |
6796 | { | |
573ed90a AL |
6797 | if (fmsg->putting_binary) |
6798 | return -EINVAL; | |
6799 | ||
1db64e87 EBE |
6800 | return devlink_fmsg_nest_common(fmsg, DEVLINK_ATTR_FMSG_NEST_END); |
6801 | } | |
6802 | ||
6803 | int devlink_fmsg_obj_nest_end(struct devlink_fmsg *fmsg) | |
6804 | { | |
573ed90a AL |
6805 | if (fmsg->putting_binary) |
6806 | return -EINVAL; | |
6807 | ||
1db64e87 EBE |
6808 | return devlink_fmsg_nest_end(fmsg); |
6809 | } | |
6810 | EXPORT_SYMBOL_GPL(devlink_fmsg_obj_nest_end); | |
6811 | ||
6812 | #define DEVLINK_FMSG_MAX_SIZE (GENLMSG_DEFAULT_SIZE - GENL_HDRLEN - NLA_HDRLEN) | |
6813 | ||
6814 | static int devlink_fmsg_put_name(struct devlink_fmsg *fmsg, const char *name) | |
6815 | { | |
6816 | struct devlink_fmsg_item *item; | |
6817 | ||
573ed90a AL |
6818 | if (fmsg->putting_binary) |
6819 | return -EINVAL; | |
6820 | ||
1db64e87 EBE |
6821 | if (strlen(name) + 1 > DEVLINK_FMSG_MAX_SIZE) |
6822 | return -EMSGSIZE; | |
6823 | ||
6824 | item = kzalloc(sizeof(*item) + strlen(name) + 1, GFP_KERNEL); | |
6825 | if (!item) | |
6826 | return -ENOMEM; | |
6827 | ||
6828 | item->nla_type = NLA_NUL_STRING; | |
6829 | item->len = strlen(name) + 1; | |
6830 | item->attrtype = DEVLINK_ATTR_FMSG_OBJ_NAME; | |
6831 | memcpy(&item->value, name, item->len); | |
6832 | list_add_tail(&item->list, &fmsg->item_list); | |
6833 | ||
6834 | return 0; | |
6835 | } | |
6836 | ||
6837 | int devlink_fmsg_pair_nest_start(struct devlink_fmsg *fmsg, const char *name) | |
6838 | { | |
6839 | int err; | |
6840 | ||
573ed90a AL |
6841 | if (fmsg->putting_binary) |
6842 | return -EINVAL; | |
6843 | ||
1db64e87 EBE |
6844 | err = devlink_fmsg_nest_common(fmsg, DEVLINK_ATTR_FMSG_PAIR_NEST_START); |
6845 | if (err) | |
6846 | return err; | |
6847 | ||
6848 | err = devlink_fmsg_put_name(fmsg, name); | |
6849 | if (err) | |
6850 | return err; | |
6851 | ||
6852 | return 0; | |
6853 | } | |
6854 | EXPORT_SYMBOL_GPL(devlink_fmsg_pair_nest_start); | |
6855 | ||
6856 | int devlink_fmsg_pair_nest_end(struct devlink_fmsg *fmsg) | |
6857 | { | |
573ed90a AL |
6858 | if (fmsg->putting_binary) |
6859 | return -EINVAL; | |
6860 | ||
1db64e87 EBE |
6861 | return devlink_fmsg_nest_end(fmsg); |
6862 | } | |
6863 | EXPORT_SYMBOL_GPL(devlink_fmsg_pair_nest_end); | |
6864 | ||
6865 | int devlink_fmsg_arr_pair_nest_start(struct devlink_fmsg *fmsg, | |
6866 | const char *name) | |
6867 | { | |
6868 | int err; | |
6869 | ||
573ed90a AL |
6870 | if (fmsg->putting_binary) |
6871 | return -EINVAL; | |
6872 | ||
1db64e87 EBE |
6873 | err = devlink_fmsg_pair_nest_start(fmsg, name); |
6874 | if (err) | |
6875 | return err; | |
6876 | ||
6877 | err = devlink_fmsg_nest_common(fmsg, DEVLINK_ATTR_FMSG_ARR_NEST_START); | |
6878 | if (err) | |
6879 | return err; | |
6880 | ||
6881 | return 0; | |
6882 | } | |
6883 | EXPORT_SYMBOL_GPL(devlink_fmsg_arr_pair_nest_start); | |
6884 | ||
6885 | int devlink_fmsg_arr_pair_nest_end(struct devlink_fmsg *fmsg) | |
6886 | { | |
6887 | int err; | |
6888 | ||
573ed90a AL |
6889 | if (fmsg->putting_binary) |
6890 | return -EINVAL; | |
6891 | ||
1db64e87 EBE |
6892 | err = devlink_fmsg_nest_end(fmsg); |
6893 | if (err) | |
6894 | return err; | |
6895 | ||
6896 | err = devlink_fmsg_nest_end(fmsg); | |
6897 | if (err) | |
6898 | return err; | |
6899 | ||
6900 | return 0; | |
6901 | } | |
6902 | EXPORT_SYMBOL_GPL(devlink_fmsg_arr_pair_nest_end); | |
6903 | ||
573ed90a AL |
6904 | int devlink_fmsg_binary_pair_nest_start(struct devlink_fmsg *fmsg, |
6905 | const char *name) | |
6906 | { | |
6907 | int err; | |
6908 | ||
6909 | err = devlink_fmsg_arr_pair_nest_start(fmsg, name); | |
6910 | if (err) | |
6911 | return err; | |
6912 | ||
6913 | fmsg->putting_binary = true; | |
6914 | return err; | |
6915 | } | |
6916 | EXPORT_SYMBOL_GPL(devlink_fmsg_binary_pair_nest_start); | |
6917 | ||
6918 | int devlink_fmsg_binary_pair_nest_end(struct devlink_fmsg *fmsg) | |
6919 | { | |
6920 | if (!fmsg->putting_binary) | |
6921 | return -EINVAL; | |
6922 | ||
6923 | fmsg->putting_binary = false; | |
6924 | return devlink_fmsg_arr_pair_nest_end(fmsg); | |
6925 | } | |
6926 | EXPORT_SYMBOL_GPL(devlink_fmsg_binary_pair_nest_end); | |
6927 | ||
1db64e87 EBE |
6928 | static int devlink_fmsg_put_value(struct devlink_fmsg *fmsg, |
6929 | const void *value, u16 value_len, | |
6930 | u8 value_nla_type) | |
6931 | { | |
6932 | struct devlink_fmsg_item *item; | |
6933 | ||
6934 | if (value_len > DEVLINK_FMSG_MAX_SIZE) | |
6935 | return -EMSGSIZE; | |
6936 | ||
6937 | item = kzalloc(sizeof(*item) + value_len, GFP_KERNEL); | |
6938 | if (!item) | |
6939 | return -ENOMEM; | |
6940 | ||
6941 | item->nla_type = value_nla_type; | |
6942 | item->len = value_len; | |
6943 | item->attrtype = DEVLINK_ATTR_FMSG_OBJ_VALUE_DATA; | |
6944 | memcpy(&item->value, value, item->len); | |
6945 | list_add_tail(&item->list, &fmsg->item_list); | |
6946 | ||
6947 | return 0; | |
6948 | } | |
6949 | ||
6db9350a | 6950 | static int devlink_fmsg_bool_put(struct devlink_fmsg *fmsg, bool value) |
1db64e87 | 6951 | { |
573ed90a AL |
6952 | if (fmsg->putting_binary) |
6953 | return -EINVAL; | |
6954 | ||
1db64e87 EBE |
6955 | return devlink_fmsg_put_value(fmsg, &value, sizeof(value), NLA_FLAG); |
6956 | } | |
1db64e87 | 6957 | |
6db9350a | 6958 | static int devlink_fmsg_u8_put(struct devlink_fmsg *fmsg, u8 value) |
1db64e87 | 6959 | { |
573ed90a AL |
6960 | if (fmsg->putting_binary) |
6961 | return -EINVAL; | |
6962 | ||
1db64e87 EBE |
6963 | return devlink_fmsg_put_value(fmsg, &value, sizeof(value), NLA_U8); |
6964 | } | |
1db64e87 EBE |
6965 | |
6966 | int devlink_fmsg_u32_put(struct devlink_fmsg *fmsg, u32 value) | |
6967 | { | |
573ed90a AL |
6968 | if (fmsg->putting_binary) |
6969 | return -EINVAL; | |
6970 | ||
1db64e87 EBE |
6971 | return devlink_fmsg_put_value(fmsg, &value, sizeof(value), NLA_U32); |
6972 | } | |
6973 | EXPORT_SYMBOL_GPL(devlink_fmsg_u32_put); | |
6974 | ||
6db9350a | 6975 | static int devlink_fmsg_u64_put(struct devlink_fmsg *fmsg, u64 value) |
1db64e87 | 6976 | { |
573ed90a AL |
6977 | if (fmsg->putting_binary) |
6978 | return -EINVAL; | |
6979 | ||
1db64e87 EBE |
6980 | return devlink_fmsg_put_value(fmsg, &value, sizeof(value), NLA_U64); |
6981 | } | |
1db64e87 EBE |
6982 | |
6983 | int devlink_fmsg_string_put(struct devlink_fmsg *fmsg, const char *value) | |
6984 | { | |
573ed90a AL |
6985 | if (fmsg->putting_binary) |
6986 | return -EINVAL; | |
6987 | ||
1db64e87 EBE |
6988 | return devlink_fmsg_put_value(fmsg, value, strlen(value) + 1, |
6989 | NLA_NUL_STRING); | |
6990 | } | |
6991 | EXPORT_SYMBOL_GPL(devlink_fmsg_string_put); | |
6992 | ||
573ed90a AL |
6993 | int devlink_fmsg_binary_put(struct devlink_fmsg *fmsg, const void *value, |
6994 | u16 value_len) | |
1db64e87 | 6995 | { |
573ed90a AL |
6996 | if (!fmsg->putting_binary) |
6997 | return -EINVAL; | |
6998 | ||
1db64e87 EBE |
6999 | return devlink_fmsg_put_value(fmsg, value, value_len, NLA_BINARY); |
7000 | } | |
573ed90a | 7001 | EXPORT_SYMBOL_GPL(devlink_fmsg_binary_put); |
1db64e87 EBE |
7002 | |
7003 | int devlink_fmsg_bool_pair_put(struct devlink_fmsg *fmsg, const char *name, | |
7004 | bool value) | |
7005 | { | |
7006 | int err; | |
7007 | ||
7008 | err = devlink_fmsg_pair_nest_start(fmsg, name); | |
7009 | if (err) | |
7010 | return err; | |
7011 | ||
7012 | err = devlink_fmsg_bool_put(fmsg, value); | |
7013 | if (err) | |
7014 | return err; | |
7015 | ||
7016 | err = devlink_fmsg_pair_nest_end(fmsg); | |
7017 | if (err) | |
7018 | return err; | |
7019 | ||
7020 | return 0; | |
7021 | } | |
7022 | EXPORT_SYMBOL_GPL(devlink_fmsg_bool_pair_put); | |
7023 | ||
7024 | int devlink_fmsg_u8_pair_put(struct devlink_fmsg *fmsg, const char *name, | |
7025 | u8 value) | |
7026 | { | |
7027 | int err; | |
7028 | ||
7029 | err = devlink_fmsg_pair_nest_start(fmsg, name); | |
7030 | if (err) | |
7031 | return err; | |
7032 | ||
7033 | err = devlink_fmsg_u8_put(fmsg, value); | |
7034 | if (err) | |
7035 | return err; | |
7036 | ||
7037 | err = devlink_fmsg_pair_nest_end(fmsg); | |
7038 | if (err) | |
7039 | return err; | |
7040 | ||
7041 | return 0; | |
7042 | } | |
7043 | EXPORT_SYMBOL_GPL(devlink_fmsg_u8_pair_put); | |
7044 | ||
7045 | int devlink_fmsg_u32_pair_put(struct devlink_fmsg *fmsg, const char *name, | |
7046 | u32 value) | |
7047 | { | |
7048 | int err; | |
7049 | ||
7050 | err = devlink_fmsg_pair_nest_start(fmsg, name); | |
7051 | if (err) | |
7052 | return err; | |
7053 | ||
7054 | err = devlink_fmsg_u32_put(fmsg, value); | |
7055 | if (err) | |
7056 | return err; | |
7057 | ||
7058 | err = devlink_fmsg_pair_nest_end(fmsg); | |
7059 | if (err) | |
7060 | return err; | |
7061 | ||
7062 | return 0; | |
7063 | } | |
7064 | EXPORT_SYMBOL_GPL(devlink_fmsg_u32_pair_put); | |
7065 | ||
7066 | int devlink_fmsg_u64_pair_put(struct devlink_fmsg *fmsg, const char *name, | |
7067 | u64 value) | |
7068 | { | |
7069 | int err; | |
7070 | ||
7071 | err = devlink_fmsg_pair_nest_start(fmsg, name); | |
7072 | if (err) | |
7073 | return err; | |
7074 | ||
7075 | err = devlink_fmsg_u64_put(fmsg, value); | |
7076 | if (err) | |
7077 | return err; | |
7078 | ||
7079 | err = devlink_fmsg_pair_nest_end(fmsg); | |
7080 | if (err) | |
7081 | return err; | |
7082 | ||
7083 | return 0; | |
7084 | } | |
7085 | EXPORT_SYMBOL_GPL(devlink_fmsg_u64_pair_put); | |
7086 | ||
7087 | int devlink_fmsg_string_pair_put(struct devlink_fmsg *fmsg, const char *name, | |
7088 | const char *value) | |
7089 | { | |
7090 | int err; | |
7091 | ||
7092 | err = devlink_fmsg_pair_nest_start(fmsg, name); | |
7093 | if (err) | |
7094 | return err; | |
7095 | ||
7096 | err = devlink_fmsg_string_put(fmsg, value); | |
7097 | if (err) | |
7098 | return err; | |
7099 | ||
7100 | err = devlink_fmsg_pair_nest_end(fmsg); | |
7101 | if (err) | |
7102 | return err; | |
7103 | ||
7104 | return 0; | |
7105 | } | |
7106 | EXPORT_SYMBOL_GPL(devlink_fmsg_string_pair_put); | |
7107 | ||
7108 | int devlink_fmsg_binary_pair_put(struct devlink_fmsg *fmsg, const char *name, | |
e2cde864 | 7109 | const void *value, u32 value_len) |
1db64e87 | 7110 | { |
e2cde864 | 7111 | u32 data_size; |
573ed90a | 7112 | int end_err; |
e2cde864 | 7113 | u32 offset; |
1db64e87 EBE |
7114 | int err; |
7115 | ||
573ed90a | 7116 | err = devlink_fmsg_binary_pair_nest_start(fmsg, name); |
1db64e87 EBE |
7117 | if (err) |
7118 | return err; | |
7119 | ||
e2cde864 AL |
7120 | for (offset = 0; offset < value_len; offset += data_size) { |
7121 | data_size = value_len - offset; | |
7122 | if (data_size > DEVLINK_FMSG_MAX_SIZE) | |
7123 | data_size = DEVLINK_FMSG_MAX_SIZE; | |
7124 | err = devlink_fmsg_binary_put(fmsg, value + offset, data_size); | |
7125 | if (err) | |
573ed90a AL |
7126 | break; |
7127 | /* Exit from loop with a break (instead of | |
7128 | * return) to make sure putting_binary is turned off in | |
7129 | * devlink_fmsg_binary_pair_nest_end | |
7130 | */ | |
e2cde864 | 7131 | } |
1db64e87 | 7132 | |
573ed90a AL |
7133 | end_err = devlink_fmsg_binary_pair_nest_end(fmsg); |
7134 | if (end_err) | |
7135 | err = end_err; | |
1db64e87 | 7136 | |
573ed90a | 7137 | return err; |
1db64e87 EBE |
7138 | } |
7139 | EXPORT_SYMBOL_GPL(devlink_fmsg_binary_pair_put); | |
7140 | ||
7141 | static int | |
7142 | devlink_fmsg_item_fill_type(struct devlink_fmsg_item *msg, struct sk_buff *skb) | |
7143 | { | |
7144 | switch (msg->nla_type) { | |
7145 | case NLA_FLAG: | |
7146 | case NLA_U8: | |
7147 | case NLA_U32: | |
7148 | case NLA_U64: | |
7149 | case NLA_NUL_STRING: | |
7150 | case NLA_BINARY: | |
7151 | return nla_put_u8(skb, DEVLINK_ATTR_FMSG_OBJ_VALUE_TYPE, | |
7152 | msg->nla_type); | |
7153 | default: | |
7154 | return -EINVAL; | |
7155 | } | |
7156 | } | |
7157 | ||
7158 | static int | |
7159 | devlink_fmsg_item_fill_data(struct devlink_fmsg_item *msg, struct sk_buff *skb) | |
7160 | { | |
7161 | int attrtype = DEVLINK_ATTR_FMSG_OBJ_VALUE_DATA; | |
7162 | u8 tmp; | |
7163 | ||
7164 | switch (msg->nla_type) { | |
7165 | case NLA_FLAG: | |
7166 | /* Always provide flag data, regardless of its value */ | |
7167 | tmp = *(bool *) msg->value; | |
7168 | ||
7169 | return nla_put_u8(skb, attrtype, tmp); | |
7170 | case NLA_U8: | |
7171 | return nla_put_u8(skb, attrtype, *(u8 *) msg->value); | |
7172 | case NLA_U32: | |
7173 | return nla_put_u32(skb, attrtype, *(u32 *) msg->value); | |
7174 | case NLA_U64: | |
7175 | return nla_put_u64_64bit(skb, attrtype, *(u64 *) msg->value, | |
7176 | DEVLINK_ATTR_PAD); | |
7177 | case NLA_NUL_STRING: | |
7178 | return nla_put_string(skb, attrtype, (char *) &msg->value); | |
7179 | case NLA_BINARY: | |
7180 | return nla_put(skb, attrtype, msg->len, (void *) &msg->value); | |
7181 | default: | |
7182 | return -EINVAL; | |
7183 | } | |
7184 | } | |
7185 | ||
7186 | static int | |
7187 | devlink_fmsg_prepare_skb(struct devlink_fmsg *fmsg, struct sk_buff *skb, | |
7188 | int *start) | |
7189 | { | |
7190 | struct devlink_fmsg_item *item; | |
7191 | struct nlattr *fmsg_nlattr; | |
7192 | int i = 0; | |
7193 | int err; | |
7194 | ||
ae0be8de | 7195 | fmsg_nlattr = nla_nest_start_noflag(skb, DEVLINK_ATTR_FMSG); |
1db64e87 EBE |
7196 | if (!fmsg_nlattr) |
7197 | return -EMSGSIZE; | |
7198 | ||
7199 | list_for_each_entry(item, &fmsg->item_list, list) { | |
7200 | if (i < *start) { | |
7201 | i++; | |
7202 | continue; | |
7203 | } | |
7204 | ||
7205 | switch (item->attrtype) { | |
7206 | case DEVLINK_ATTR_FMSG_OBJ_NEST_START: | |
7207 | case DEVLINK_ATTR_FMSG_PAIR_NEST_START: | |
7208 | case DEVLINK_ATTR_FMSG_ARR_NEST_START: | |
7209 | case DEVLINK_ATTR_FMSG_NEST_END: | |
7210 | err = nla_put_flag(skb, item->attrtype); | |
7211 | break; | |
7212 | case DEVLINK_ATTR_FMSG_OBJ_VALUE_DATA: | |
7213 | err = devlink_fmsg_item_fill_type(item, skb); | |
7214 | if (err) | |
7215 | break; | |
7216 | err = devlink_fmsg_item_fill_data(item, skb); | |
7217 | break; | |
7218 | case DEVLINK_ATTR_FMSG_OBJ_NAME: | |
7219 | err = nla_put_string(skb, item->attrtype, | |
7220 | (char *) &item->value); | |
7221 | break; | |
7222 | default: | |
7223 | err = -EINVAL; | |
7224 | break; | |
7225 | } | |
7226 | if (!err) | |
7227 | *start = ++i; | |
7228 | else | |
7229 | break; | |
7230 | } | |
7231 | ||
7232 | nla_nest_end(skb, fmsg_nlattr); | |
7233 | return err; | |
7234 | } | |
7235 | ||
7236 | static int devlink_fmsg_snd(struct devlink_fmsg *fmsg, | |
7237 | struct genl_info *info, | |
7238 | enum devlink_command cmd, int flags) | |
7239 | { | |
7240 | struct nlmsghdr *nlh; | |
7241 | struct sk_buff *skb; | |
7242 | bool last = false; | |
7243 | int index = 0; | |
7244 | void *hdr; | |
7245 | int err; | |
7246 | ||
7247 | while (!last) { | |
7248 | int tmp_index = index; | |
7249 | ||
7250 | skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
7251 | if (!skb) | |
7252 | return -ENOMEM; | |
7253 | ||
7254 | hdr = genlmsg_put(skb, info->snd_portid, info->snd_seq, | |
7255 | &devlink_nl_family, flags | NLM_F_MULTI, cmd); | |
7256 | if (!hdr) { | |
7257 | err = -EMSGSIZE; | |
7258 | goto nla_put_failure; | |
7259 | } | |
7260 | ||
7261 | err = devlink_fmsg_prepare_skb(fmsg, skb, &index); | |
7262 | if (!err) | |
7263 | last = true; | |
7264 | else if (err != -EMSGSIZE || tmp_index == index) | |
7265 | goto nla_put_failure; | |
7266 | ||
7267 | genlmsg_end(skb, hdr); | |
7268 | err = genlmsg_reply(skb, info); | |
7269 | if (err) | |
7270 | return err; | |
7271 | } | |
7272 | ||
7273 | skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
7274 | if (!skb) | |
7275 | return -ENOMEM; | |
7276 | nlh = nlmsg_put(skb, info->snd_portid, info->snd_seq, | |
7277 | NLMSG_DONE, 0, flags | NLM_F_MULTI); | |
7278 | if (!nlh) { | |
7279 | err = -EMSGSIZE; | |
7280 | goto nla_put_failure; | |
7281 | } | |
1db64e87 | 7282 | |
fde55ea7 | 7283 | return genlmsg_reply(skb, info); |
1db64e87 EBE |
7284 | |
7285 | nla_put_failure: | |
7286 | nlmsg_free(skb); | |
7287 | return err; | |
7288 | } | |
7289 | ||
e44ef4e4 AL |
7290 | static int devlink_fmsg_dumpit(struct devlink_fmsg *fmsg, struct sk_buff *skb, |
7291 | struct netlink_callback *cb, | |
7292 | enum devlink_command cmd) | |
7293 | { | |
7294 | int index = cb->args[0]; | |
7295 | int tmp_index = index; | |
7296 | void *hdr; | |
7297 | int err; | |
7298 | ||
7299 | hdr = genlmsg_put(skb, NETLINK_CB(cb->skb).portid, cb->nlh->nlmsg_seq, | |
7300 | &devlink_nl_family, NLM_F_ACK | NLM_F_MULTI, cmd); | |
7301 | if (!hdr) { | |
7302 | err = -EMSGSIZE; | |
7303 | goto nla_put_failure; | |
7304 | } | |
7305 | ||
7306 | err = devlink_fmsg_prepare_skb(fmsg, skb, &index); | |
7307 | if ((err && err != -EMSGSIZE) || tmp_index == index) | |
7308 | goto nla_put_failure; | |
7309 | ||
7310 | cb->args[0] = index; | |
7311 | genlmsg_end(skb, hdr); | |
7312 | return skb->len; | |
7313 | ||
7314 | nla_put_failure: | |
7315 | genlmsg_cancel(skb, hdr); | |
7316 | return err; | |
7317 | } | |
7318 | ||
a0bdcc59 EBE |
7319 | struct devlink_health_reporter { |
7320 | struct list_head list; | |
7321 | void *priv; | |
7322 | const struct devlink_health_reporter_ops *ops; | |
7323 | struct devlink *devlink; | |
f4f54166 | 7324 | struct devlink_port *devlink_port; |
c8e1da0b EBE |
7325 | struct devlink_fmsg *dump_fmsg; |
7326 | struct mutex dump_lock; /* lock parallel read/write from dump buffers */ | |
a0bdcc59 EBE |
7327 | u64 graceful_period; |
7328 | bool auto_recover; | |
48bb52c8 | 7329 | bool auto_dump; |
a0bdcc59 | 7330 | u8 health_state; |
c8e1da0b | 7331 | u64 dump_ts; |
d279505b | 7332 | u64 dump_real_ts; |
c8e1da0b EBE |
7333 | u64 error_count; |
7334 | u64 recovery_count; | |
7335 | u64 last_recovery_ts; | |
b587bdaf | 7336 | refcount_t refcount; |
c8e1da0b EBE |
7337 | }; |
7338 | ||
a0bdcc59 EBE |
7339 | void * |
7340 | devlink_health_reporter_priv(struct devlink_health_reporter *reporter) | |
7341 | { | |
7342 | return reporter->priv; | |
7343 | } | |
7344 | EXPORT_SYMBOL_GPL(devlink_health_reporter_priv); | |
7345 | ||
7346 | static struct devlink_health_reporter * | |
bd821005 VT |
7347 | __devlink_health_reporter_find_by_name(struct list_head *reporter_list, |
7348 | struct mutex *list_lock, | |
7349 | const char *reporter_name) | |
a0bdcc59 EBE |
7350 | { |
7351 | struct devlink_health_reporter *reporter; | |
7352 | ||
bd821005 VT |
7353 | lockdep_assert_held(list_lock); |
7354 | list_for_each_entry(reporter, reporter_list, list) | |
a0bdcc59 EBE |
7355 | if (!strcmp(reporter->ops->name, reporter_name)) |
7356 | return reporter; | |
7357 | return NULL; | |
7358 | } | |
7359 | ||
bd821005 VT |
7360 | static struct devlink_health_reporter * |
7361 | devlink_health_reporter_find_by_name(struct devlink *devlink, | |
7362 | const char *reporter_name) | |
7363 | { | |
7364 | return __devlink_health_reporter_find_by_name(&devlink->reporter_list, | |
7365 | &devlink->reporters_lock, | |
7366 | reporter_name); | |
7367 | } | |
7368 | ||
f4f54166 VT |
7369 | static struct devlink_health_reporter * |
7370 | devlink_port_health_reporter_find_by_name(struct devlink_port *devlink_port, | |
7371 | const char *reporter_name) | |
7372 | { | |
7373 | return __devlink_health_reporter_find_by_name(&devlink_port->reporter_list, | |
7374 | &devlink_port->reporters_lock, | |
7375 | reporter_name); | |
7376 | } | |
7377 | ||
c57544b3 VT |
7378 | static struct devlink_health_reporter * |
7379 | __devlink_health_reporter_create(struct devlink *devlink, | |
7380 | const struct devlink_health_reporter_ops *ops, | |
7381 | u64 graceful_period, void *priv) | |
7382 | { | |
7383 | struct devlink_health_reporter *reporter; | |
7384 | ||
7385 | if (WARN_ON(graceful_period && !ops->recover)) | |
7386 | return ERR_PTR(-EINVAL); | |
7387 | ||
7388 | reporter = kzalloc(sizeof(*reporter), GFP_KERNEL); | |
7389 | if (!reporter) | |
7390 | return ERR_PTR(-ENOMEM); | |
7391 | ||
7392 | reporter->priv = priv; | |
7393 | reporter->ops = ops; | |
7394 | reporter->devlink = devlink; | |
7395 | reporter->graceful_period = graceful_period; | |
7396 | reporter->auto_recover = !!ops->recover; | |
7397 | reporter->auto_dump = !!ops->dump; | |
7398 | mutex_init(&reporter->dump_lock); | |
7399 | refcount_set(&reporter->refcount, 1); | |
7400 | return reporter; | |
7401 | } | |
7402 | ||
15c724b9 VT |
7403 | /** |
7404 | * devlink_port_health_reporter_create - create devlink health reporter for | |
7405 | * specified port instance | |
7406 | * | |
7407 | * @port: devlink_port which should contain the new reporter | |
7408 | * @ops: ops | |
7409 | * @graceful_period: to avoid recovery loops, in msecs | |
7410 | * @priv: priv | |
7411 | */ | |
7412 | struct devlink_health_reporter * | |
7413 | devlink_port_health_reporter_create(struct devlink_port *port, | |
7414 | const struct devlink_health_reporter_ops *ops, | |
7415 | u64 graceful_period, void *priv) | |
7416 | { | |
7417 | struct devlink_health_reporter *reporter; | |
7418 | ||
7419 | mutex_lock(&port->reporters_lock); | |
7420 | if (__devlink_health_reporter_find_by_name(&port->reporter_list, | |
7421 | &port->reporters_lock, ops->name)) { | |
7422 | reporter = ERR_PTR(-EEXIST); | |
7423 | goto unlock; | |
7424 | } | |
7425 | ||
7426 | reporter = __devlink_health_reporter_create(port->devlink, ops, | |
7427 | graceful_period, priv); | |
7428 | if (IS_ERR(reporter)) | |
7429 | goto unlock; | |
7430 | ||
7431 | reporter->devlink_port = port; | |
7432 | list_add_tail(&reporter->list, &port->reporter_list); | |
7433 | unlock: | |
7434 | mutex_unlock(&port->reporters_lock); | |
7435 | return reporter; | |
7436 | } | |
7437 | EXPORT_SYMBOL_GPL(devlink_port_health_reporter_create); | |
7438 | ||
a0bdcc59 EBE |
7439 | /** |
7440 | * devlink_health_reporter_create - create devlink health reporter | |
7441 | * | |
7442 | * @devlink: devlink | |
7443 | * @ops: ops | |
7444 | * @graceful_period: to avoid recovery loops, in msecs | |
a0bdcc59 EBE |
7445 | * @priv: priv |
7446 | */ | |
7447 | struct devlink_health_reporter * | |
7448 | devlink_health_reporter_create(struct devlink *devlink, | |
7449 | const struct devlink_health_reporter_ops *ops, | |
ba7d16c7 | 7450 | u64 graceful_period, void *priv) |
a0bdcc59 EBE |
7451 | { |
7452 | struct devlink_health_reporter *reporter; | |
7453 | ||
b587bdaf | 7454 | mutex_lock(&devlink->reporters_lock); |
a0bdcc59 EBE |
7455 | if (devlink_health_reporter_find_by_name(devlink, ops->name)) { |
7456 | reporter = ERR_PTR(-EEXIST); | |
7457 | goto unlock; | |
7458 | } | |
7459 | ||
c57544b3 VT |
7460 | reporter = __devlink_health_reporter_create(devlink, ops, |
7461 | graceful_period, priv); | |
7462 | if (IS_ERR(reporter)) | |
a0bdcc59 | 7463 | goto unlock; |
a0bdcc59 | 7464 | |
a0bdcc59 EBE |
7465 | list_add_tail(&reporter->list, &devlink->reporter_list); |
7466 | unlock: | |
b587bdaf | 7467 | mutex_unlock(&devlink->reporters_lock); |
a0bdcc59 EBE |
7468 | return reporter; |
7469 | } | |
7470 | EXPORT_SYMBOL_GPL(devlink_health_reporter_create); | |
7471 | ||
3c5584bf VT |
7472 | static void |
7473 | devlink_health_reporter_free(struct devlink_health_reporter *reporter) | |
7474 | { | |
7475 | mutex_destroy(&reporter->dump_lock); | |
7476 | if (reporter->dump_fmsg) | |
7477 | devlink_fmsg_free(reporter->dump_fmsg); | |
7478 | kfree(reporter); | |
7479 | } | |
7480 | ||
7481 | static void | |
7482 | devlink_health_reporter_put(struct devlink_health_reporter *reporter) | |
7483 | { | |
7484 | if (refcount_dec_and_test(&reporter->refcount)) | |
7485 | devlink_health_reporter_free(reporter); | |
7486 | } | |
7487 | ||
7488 | static void | |
7489 | __devlink_health_reporter_destroy(struct devlink_health_reporter *reporter) | |
7490 | { | |
7491 | list_del(&reporter->list); | |
7492 | devlink_health_reporter_put(reporter); | |
7493 | } | |
7494 | ||
a0bdcc59 EBE |
7495 | /** |
7496 | * devlink_health_reporter_destroy - destroy devlink health reporter | |
7497 | * | |
7498 | * @reporter: devlink health reporter to destroy | |
7499 | */ | |
7500 | void | |
7501 | devlink_health_reporter_destroy(struct devlink_health_reporter *reporter) | |
7502 | { | |
5d037b4d IS |
7503 | struct mutex *lock = &reporter->devlink->reporters_lock; |
7504 | ||
7505 | mutex_lock(lock); | |
3c5584bf | 7506 | __devlink_health_reporter_destroy(reporter); |
5d037b4d | 7507 | mutex_unlock(lock); |
a0bdcc59 EBE |
7508 | } |
7509 | EXPORT_SYMBOL_GPL(devlink_health_reporter_destroy); | |
7510 | ||
15c724b9 VT |
7511 | /** |
7512 | * devlink_port_health_reporter_destroy - destroy devlink port health reporter | |
7513 | * | |
7514 | * @reporter: devlink health reporter to destroy | |
7515 | */ | |
7516 | void | |
7517 | devlink_port_health_reporter_destroy(struct devlink_health_reporter *reporter) | |
7518 | { | |
5d037b4d IS |
7519 | struct mutex *lock = &reporter->devlink_port->reporters_lock; |
7520 | ||
7521 | mutex_lock(lock); | |
15c724b9 | 7522 | __devlink_health_reporter_destroy(reporter); |
5d037b4d | 7523 | mutex_unlock(lock); |
15c724b9 VT |
7524 | } |
7525 | EXPORT_SYMBOL_GPL(devlink_port_health_reporter_destroy); | |
7526 | ||
6ec8b6cd MS |
7527 | static int |
7528 | devlink_nl_health_reporter_fill(struct sk_buff *msg, | |
6ec8b6cd MS |
7529 | struct devlink_health_reporter *reporter, |
7530 | enum devlink_command cmd, u32 portid, | |
7531 | u32 seq, int flags) | |
7532 | { | |
7ca973dc | 7533 | struct devlink *devlink = reporter->devlink; |
6ec8b6cd MS |
7534 | struct nlattr *reporter_attr; |
7535 | void *hdr; | |
7536 | ||
7537 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
7538 | if (!hdr) | |
7539 | return -EMSGSIZE; | |
7540 | ||
7541 | if (devlink_nl_put_handle(msg, devlink)) | |
7542 | goto genlmsg_cancel; | |
7543 | ||
f4f54166 VT |
7544 | if (reporter->devlink_port) { |
7545 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, reporter->devlink_port->index)) | |
7546 | goto genlmsg_cancel; | |
7547 | } | |
6ec8b6cd MS |
7548 | reporter_attr = nla_nest_start_noflag(msg, |
7549 | DEVLINK_ATTR_HEALTH_REPORTER); | |
7550 | if (!reporter_attr) | |
7551 | goto genlmsg_cancel; | |
7552 | if (nla_put_string(msg, DEVLINK_ATTR_HEALTH_REPORTER_NAME, | |
7553 | reporter->ops->name)) | |
7554 | goto reporter_nest_cancel; | |
7555 | if (nla_put_u8(msg, DEVLINK_ATTR_HEALTH_REPORTER_STATE, | |
7556 | reporter->health_state)) | |
7557 | goto reporter_nest_cancel; | |
7558 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_HEALTH_REPORTER_ERR_COUNT, | |
7559 | reporter->error_count, DEVLINK_ATTR_PAD)) | |
7560 | goto reporter_nest_cancel; | |
7561 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_HEALTH_REPORTER_RECOVER_COUNT, | |
7562 | reporter->recovery_count, DEVLINK_ATTR_PAD)) | |
7563 | goto reporter_nest_cancel; | |
7564 | if (reporter->ops->recover && | |
7565 | nla_put_u64_64bit(msg, DEVLINK_ATTR_HEALTH_REPORTER_GRACEFUL_PERIOD, | |
7566 | reporter->graceful_period, | |
7567 | DEVLINK_ATTR_PAD)) | |
7568 | goto reporter_nest_cancel; | |
7569 | if (reporter->ops->recover && | |
7570 | nla_put_u8(msg, DEVLINK_ATTR_HEALTH_REPORTER_AUTO_RECOVER, | |
7571 | reporter->auto_recover)) | |
7572 | goto reporter_nest_cancel; | |
7573 | if (reporter->dump_fmsg && | |
7574 | nla_put_u64_64bit(msg, DEVLINK_ATTR_HEALTH_REPORTER_DUMP_TS, | |
7575 | jiffies_to_msecs(reporter->dump_ts), | |
7576 | DEVLINK_ATTR_PAD)) | |
7577 | goto reporter_nest_cancel; | |
7578 | if (reporter->dump_fmsg && | |
7579 | nla_put_u64_64bit(msg, DEVLINK_ATTR_HEALTH_REPORTER_DUMP_TS_NS, | |
7580 | reporter->dump_real_ts, DEVLINK_ATTR_PAD)) | |
7581 | goto reporter_nest_cancel; | |
48bb52c8 EBE |
7582 | if (reporter->ops->dump && |
7583 | nla_put_u8(msg, DEVLINK_ATTR_HEALTH_REPORTER_AUTO_DUMP, | |
7584 | reporter->auto_dump)) | |
7585 | goto reporter_nest_cancel; | |
6ec8b6cd MS |
7586 | |
7587 | nla_nest_end(msg, reporter_attr); | |
7588 | genlmsg_end(msg, hdr); | |
7589 | return 0; | |
7590 | ||
7591 | reporter_nest_cancel: | |
7592 | nla_nest_end(msg, reporter_attr); | |
7593 | genlmsg_cancel: | |
7594 | genlmsg_cancel(msg, hdr); | |
7595 | return -EMSGSIZE; | |
7596 | } | |
7597 | ||
7598 | static void devlink_recover_notify(struct devlink_health_reporter *reporter, | |
7599 | enum devlink_command cmd) | |
7600 | { | |
cf530217 | 7601 | struct devlink *devlink = reporter->devlink; |
6ec8b6cd MS |
7602 | struct sk_buff *msg; |
7603 | int err; | |
7604 | ||
7605 | WARN_ON(cmd != DEVLINK_CMD_HEALTH_REPORTER_RECOVER); | |
cf530217 | 7606 | WARN_ON(!xa_get_mark(&devlinks, devlink->index, DEVLINK_REGISTERED)); |
6ec8b6cd MS |
7607 | |
7608 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
7609 | if (!msg) | |
7610 | return; | |
7611 | ||
7ca973dc | 7612 | err = devlink_nl_health_reporter_fill(msg, reporter, cmd, 0, 0, 0); |
6ec8b6cd MS |
7613 | if (err) { |
7614 | nlmsg_free(msg); | |
7615 | return; | |
7616 | } | |
7617 | ||
cf530217 LR |
7618 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), msg, |
7619 | 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
6ec8b6cd MS |
7620 | } |
7621 | ||
6181e5cb VG |
7622 | void |
7623 | devlink_health_reporter_recovery_done(struct devlink_health_reporter *reporter) | |
7624 | { | |
7625 | reporter->recovery_count++; | |
7626 | reporter->last_recovery_ts = jiffies; | |
7627 | } | |
7628 | EXPORT_SYMBOL_GPL(devlink_health_reporter_recovery_done); | |
7629 | ||
c8e1da0b EBE |
7630 | static int |
7631 | devlink_health_reporter_recover(struct devlink_health_reporter *reporter, | |
e7a98105 | 7632 | void *priv_ctx, struct netlink_ext_ack *extack) |
c8e1da0b EBE |
7633 | { |
7634 | int err; | |
7635 | ||
40281820 JP |
7636 | if (reporter->health_state == DEVLINK_HEALTH_REPORTER_STATE_HEALTHY) |
7637 | return 0; | |
7638 | ||
c8e1da0b EBE |
7639 | if (!reporter->ops->recover) |
7640 | return -EOPNOTSUPP; | |
7641 | ||
e7a98105 | 7642 | err = reporter->ops->recover(reporter, priv_ctx, extack); |
c8e1da0b EBE |
7643 | if (err) |
7644 | return err; | |
7645 | ||
6181e5cb | 7646 | devlink_health_reporter_recovery_done(reporter); |
c8e1da0b | 7647 | reporter->health_state = DEVLINK_HEALTH_REPORTER_STATE_HEALTHY; |
6ec8b6cd | 7648 | devlink_recover_notify(reporter, DEVLINK_CMD_HEALTH_REPORTER_RECOVER); |
c8e1da0b EBE |
7649 | |
7650 | return 0; | |
7651 | } | |
7652 | ||
7653 | static void | |
7654 | devlink_health_dump_clear(struct devlink_health_reporter *reporter) | |
7655 | { | |
7656 | if (!reporter->dump_fmsg) | |
7657 | return; | |
7658 | devlink_fmsg_free(reporter->dump_fmsg); | |
7659 | reporter->dump_fmsg = NULL; | |
7660 | } | |
7661 | ||
7662 | static int devlink_health_do_dump(struct devlink_health_reporter *reporter, | |
e7a98105 JP |
7663 | void *priv_ctx, |
7664 | struct netlink_ext_ack *extack) | |
c8e1da0b EBE |
7665 | { |
7666 | int err; | |
7667 | ||
7668 | if (!reporter->ops->dump) | |
7669 | return 0; | |
7670 | ||
7671 | if (reporter->dump_fmsg) | |
7672 | return 0; | |
7673 | ||
7674 | reporter->dump_fmsg = devlink_fmsg_alloc(); | |
7675 | if (!reporter->dump_fmsg) { | |
7676 | err = -ENOMEM; | |
7677 | return err; | |
7678 | } | |
7679 | ||
7680 | err = devlink_fmsg_obj_nest_start(reporter->dump_fmsg); | |
7681 | if (err) | |
7682 | goto dump_err; | |
7683 | ||
7684 | err = reporter->ops->dump(reporter, reporter->dump_fmsg, | |
e7a98105 | 7685 | priv_ctx, extack); |
c8e1da0b EBE |
7686 | if (err) |
7687 | goto dump_err; | |
7688 | ||
7689 | err = devlink_fmsg_obj_nest_end(reporter->dump_fmsg); | |
7690 | if (err) | |
7691 | goto dump_err; | |
7692 | ||
7693 | reporter->dump_ts = jiffies; | |
d279505b | 7694 | reporter->dump_real_ts = ktime_get_real_ns(); |
c8e1da0b EBE |
7695 | |
7696 | return 0; | |
7697 | ||
7698 | dump_err: | |
7699 | devlink_health_dump_clear(reporter); | |
7700 | return err; | |
7701 | } | |
7702 | ||
7703 | int devlink_health_report(struct devlink_health_reporter *reporter, | |
7704 | const char *msg, void *priv_ctx) | |
7705 | { | |
a0a21adb | 7706 | enum devlink_health_reporter_state prev_health_state; |
c8e1da0b | 7707 | struct devlink *devlink = reporter->devlink; |
bea0c5c9 | 7708 | unsigned long recover_ts_threshold; |
c90005b5 | 7709 | int ret; |
c8e1da0b EBE |
7710 | |
7711 | /* write a log message of the current error */ | |
7712 | WARN_ON(!msg); | |
7713 | trace_devlink_health_report(devlink, reporter->ops->name, msg); | |
7714 | reporter->error_count++; | |
a0a21adb EBE |
7715 | prev_health_state = reporter->health_state; |
7716 | reporter->health_state = DEVLINK_HEALTH_REPORTER_STATE_ERROR; | |
6ec8b6cd | 7717 | devlink_recover_notify(reporter, DEVLINK_CMD_HEALTH_REPORTER_RECOVER); |
c8e1da0b EBE |
7718 | |
7719 | /* abort if the previous error wasn't recovered */ | |
bea0c5c9 AL |
7720 | recover_ts_threshold = reporter->last_recovery_ts + |
7721 | msecs_to_jiffies(reporter->graceful_period); | |
c8e1da0b | 7722 | if (reporter->auto_recover && |
a0a21adb | 7723 | (prev_health_state != DEVLINK_HEALTH_REPORTER_STATE_HEALTHY || |
bea0c5c9 AL |
7724 | (reporter->last_recovery_ts && reporter->recovery_count && |
7725 | time_is_after_jiffies(recover_ts_threshold)))) { | |
c8e1da0b EBE |
7726 | trace_devlink_health_recover_aborted(devlink, |
7727 | reporter->ops->name, | |
7728 | reporter->health_state, | |
7729 | jiffies - | |
7730 | reporter->last_recovery_ts); | |
7731 | return -ECANCELED; | |
7732 | } | |
7733 | ||
7734 | reporter->health_state = DEVLINK_HEALTH_REPORTER_STATE_ERROR; | |
7735 | ||
48bb52c8 EBE |
7736 | if (reporter->auto_dump) { |
7737 | mutex_lock(&reporter->dump_lock); | |
7738 | /* store current dump of current error, for later analysis */ | |
7739 | devlink_health_do_dump(reporter, priv_ctx, NULL); | |
7740 | mutex_unlock(&reporter->dump_lock); | |
7741 | } | |
c8e1da0b | 7742 | |
c90005b5 MS |
7743 | if (!reporter->auto_recover) |
7744 | return 0; | |
c8e1da0b | 7745 | |
c90005b5 MS |
7746 | devl_lock(devlink); |
7747 | ret = devlink_health_reporter_recover(reporter, priv_ctx, NULL); | |
7748 | devl_unlock(devlink); | |
7749 | ||
7750 | return ret; | |
c8e1da0b EBE |
7751 | } |
7752 | EXPORT_SYMBOL_GPL(devlink_health_report); | |
7753 | ||
7afe335a | 7754 | static struct devlink_health_reporter * |
e44ef4e4 AL |
7755 | devlink_health_reporter_get_from_attrs(struct devlink *devlink, |
7756 | struct nlattr **attrs) | |
7afe335a | 7757 | { |
b587bdaf | 7758 | struct devlink_health_reporter *reporter; |
f4f54166 | 7759 | struct devlink_port *devlink_port; |
7afe335a EBE |
7760 | char *reporter_name; |
7761 | ||
e44ef4e4 | 7762 | if (!attrs[DEVLINK_ATTR_HEALTH_REPORTER_NAME]) |
7afe335a EBE |
7763 | return NULL; |
7764 | ||
e44ef4e4 | 7765 | reporter_name = nla_data(attrs[DEVLINK_ATTR_HEALTH_REPORTER_NAME]); |
f4f54166 VT |
7766 | devlink_port = devlink_port_get_from_attrs(devlink, attrs); |
7767 | if (IS_ERR(devlink_port)) { | |
7768 | mutex_lock(&devlink->reporters_lock); | |
7769 | reporter = devlink_health_reporter_find_by_name(devlink, reporter_name); | |
7770 | if (reporter) | |
7771 | refcount_inc(&reporter->refcount); | |
7772 | mutex_unlock(&devlink->reporters_lock); | |
7773 | } else { | |
7774 | mutex_lock(&devlink_port->reporters_lock); | |
7775 | reporter = devlink_port_health_reporter_find_by_name(devlink_port, reporter_name); | |
7776 | if (reporter) | |
7777 | refcount_inc(&reporter->refcount); | |
7778 | mutex_unlock(&devlink_port->reporters_lock); | |
7779 | } | |
7780 | ||
b587bdaf MS |
7781 | return reporter; |
7782 | } | |
7783 | ||
e44ef4e4 AL |
7784 | static struct devlink_health_reporter * |
7785 | devlink_health_reporter_get_from_info(struct devlink *devlink, | |
7786 | struct genl_info *info) | |
7787 | { | |
7788 | return devlink_health_reporter_get_from_attrs(devlink, info->attrs); | |
7789 | } | |
7790 | ||
7791 | static struct devlink_health_reporter * | |
7792 | devlink_health_reporter_get_from_cb(struct netlink_callback *cb) | |
7793 | { | |
ee85da53 | 7794 | const struct genl_dumpit_info *info = genl_dumpit_info(cb); |
e44ef4e4 | 7795 | struct devlink_health_reporter *reporter; |
ee85da53 | 7796 | struct nlattr **attrs = info->attrs; |
e44ef4e4 | 7797 | struct devlink *devlink; |
e44ef4e4 | 7798 | |
e44ef4e4 AL |
7799 | devlink = devlink_get_from_attrs(sock_net(cb->skb->sk), attrs); |
7800 | if (IS_ERR(devlink)) | |
d3efc2a6 | 7801 | return NULL; |
e44ef4e4 AL |
7802 | |
7803 | reporter = devlink_health_reporter_get_from_attrs(devlink, attrs); | |
437ebfd9 | 7804 | devlink_put(devlink); |
e44ef4e4 | 7805 | return reporter; |
e44ef4e4 AL |
7806 | } |
7807 | ||
97ff3bd3 VG |
7808 | void |
7809 | devlink_health_reporter_state_update(struct devlink_health_reporter *reporter, | |
7810 | enum devlink_health_reporter_state state) | |
7811 | { | |
7812 | if (WARN_ON(state != DEVLINK_HEALTH_REPORTER_STATE_HEALTHY && | |
7813 | state != DEVLINK_HEALTH_REPORTER_STATE_ERROR)) | |
7814 | return; | |
7815 | ||
7816 | if (reporter->health_state == state) | |
7817 | return; | |
7818 | ||
7819 | reporter->health_state = state; | |
7820 | trace_devlink_health_reporter_state_update(reporter->devlink, | |
7821 | reporter->ops->name, state); | |
7822 | devlink_recover_notify(reporter, DEVLINK_CMD_HEALTH_REPORTER_RECOVER); | |
7823 | } | |
7824 | EXPORT_SYMBOL_GPL(devlink_health_reporter_state_update); | |
7825 | ||
7afe335a EBE |
7826 | static int devlink_nl_cmd_health_reporter_get_doit(struct sk_buff *skb, |
7827 | struct genl_info *info) | |
7828 | { | |
7829 | struct devlink *devlink = info->user_ptr[0]; | |
7830 | struct devlink_health_reporter *reporter; | |
7831 | struct sk_buff *msg; | |
7832 | int err; | |
7833 | ||
7834 | reporter = devlink_health_reporter_get_from_info(devlink, info); | |
7835 | if (!reporter) | |
7836 | return -EINVAL; | |
7837 | ||
7838 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
b587bdaf MS |
7839 | if (!msg) { |
7840 | err = -ENOMEM; | |
7841 | goto out; | |
7842 | } | |
7afe335a | 7843 | |
7ca973dc | 7844 | err = devlink_nl_health_reporter_fill(msg, reporter, |
7afe335a EBE |
7845 | DEVLINK_CMD_HEALTH_REPORTER_GET, |
7846 | info->snd_portid, info->snd_seq, | |
7847 | 0); | |
7848 | if (err) { | |
7849 | nlmsg_free(msg); | |
b587bdaf | 7850 | goto out; |
7afe335a EBE |
7851 | } |
7852 | ||
b587bdaf MS |
7853 | err = genlmsg_reply(msg, info); |
7854 | out: | |
7855 | devlink_health_reporter_put(reporter); | |
7856 | return err; | |
7afe335a EBE |
7857 | } |
7858 | ||
7859 | static int | |
7860 | devlink_nl_cmd_health_reporter_get_dumpit(struct sk_buff *msg, | |
7861 | struct netlink_callback *cb) | |
7862 | { | |
7863 | struct devlink_health_reporter *reporter; | |
f4f54166 | 7864 | struct devlink_port *port; |
7afe335a EBE |
7865 | struct devlink *devlink; |
7866 | int start = cb->args[0]; | |
11a861d7 | 7867 | unsigned long index; |
7afe335a EBE |
7868 | int idx = 0; |
7869 | int err; | |
7870 | ||
294c4f57 | 7871 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
b587bdaf | 7872 | mutex_lock(&devlink->reporters_lock); |
7afe335a EBE |
7873 | list_for_each_entry(reporter, &devlink->reporter_list, |
7874 | list) { | |
7875 | if (idx < start) { | |
7876 | idx++; | |
7877 | continue; | |
7878 | } | |
7ca973dc LR |
7879 | err = devlink_nl_health_reporter_fill( |
7880 | msg, reporter, DEVLINK_CMD_HEALTH_REPORTER_GET, | |
7881 | NETLINK_CB(cb->skb).portid, cb->nlh->nlmsg_seq, | |
7882 | NLM_F_MULTI); | |
7afe335a | 7883 | if (err) { |
b587bdaf | 7884 | mutex_unlock(&devlink->reporters_lock); |
437ebfd9 | 7885 | devlink_put(devlink); |
7afe335a EBE |
7886 | goto out; |
7887 | } | |
7888 | idx++; | |
7889 | } | |
b587bdaf | 7890 | mutex_unlock(&devlink->reporters_lock); |
437ebfd9 | 7891 | devlink_put(devlink); |
7afe335a | 7892 | } |
f4f54166 | 7893 | |
294c4f57 | 7894 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
7715023a | 7895 | devl_lock(devlink); |
f4f54166 VT |
7896 | list_for_each_entry(port, &devlink->port_list, list) { |
7897 | mutex_lock(&port->reporters_lock); | |
7898 | list_for_each_entry(reporter, &port->reporter_list, list) { | |
7899 | if (idx < start) { | |
7900 | idx++; | |
7901 | continue; | |
7902 | } | |
7ca973dc LR |
7903 | err = devlink_nl_health_reporter_fill( |
7904 | msg, reporter, | |
7905 | DEVLINK_CMD_HEALTH_REPORTER_GET, | |
7906 | NETLINK_CB(cb->skb).portid, | |
7907 | cb->nlh->nlmsg_seq, NLM_F_MULTI); | |
f4f54166 VT |
7908 | if (err) { |
7909 | mutex_unlock(&port->reporters_lock); | |
7715023a | 7910 | devl_unlock(devlink); |
437ebfd9 | 7911 | devlink_put(devlink); |
f4f54166 VT |
7912 | goto out; |
7913 | } | |
7914 | idx++; | |
7915 | } | |
7916 | mutex_unlock(&port->reporters_lock); | |
7917 | } | |
7715023a | 7918 | devl_unlock(devlink); |
437ebfd9 | 7919 | devlink_put(devlink); |
f4f54166 | 7920 | } |
7afe335a | 7921 | out: |
7afe335a EBE |
7922 | cb->args[0] = idx; |
7923 | return msg->len; | |
7924 | } | |
7925 | ||
a1e55ec0 EBE |
7926 | static int |
7927 | devlink_nl_cmd_health_reporter_set_doit(struct sk_buff *skb, | |
7928 | struct genl_info *info) | |
7929 | { | |
7930 | struct devlink *devlink = info->user_ptr[0]; | |
7931 | struct devlink_health_reporter *reporter; | |
b587bdaf | 7932 | int err; |
a1e55ec0 EBE |
7933 | |
7934 | reporter = devlink_health_reporter_get_from_info(devlink, info); | |
7935 | if (!reporter) | |
7936 | return -EINVAL; | |
7937 | ||
7938 | if (!reporter->ops->recover && | |
7939 | (info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_GRACEFUL_PERIOD] || | |
b587bdaf MS |
7940 | info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_AUTO_RECOVER])) { |
7941 | err = -EOPNOTSUPP; | |
7942 | goto out; | |
7943 | } | |
48bb52c8 EBE |
7944 | if (!reporter->ops->dump && |
7945 | info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_AUTO_DUMP]) { | |
7946 | err = -EOPNOTSUPP; | |
7947 | goto out; | |
7948 | } | |
a1e55ec0 EBE |
7949 | |
7950 | if (info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_GRACEFUL_PERIOD]) | |
7951 | reporter->graceful_period = | |
7952 | nla_get_u64(info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_GRACEFUL_PERIOD]); | |
7953 | ||
7954 | if (info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_AUTO_RECOVER]) | |
7955 | reporter->auto_recover = | |
7956 | nla_get_u8(info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_AUTO_RECOVER]); | |
7957 | ||
48bb52c8 EBE |
7958 | if (info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_AUTO_DUMP]) |
7959 | reporter->auto_dump = | |
7960 | nla_get_u8(info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_AUTO_DUMP]); | |
7961 | ||
b587bdaf | 7962 | devlink_health_reporter_put(reporter); |
a1e55ec0 | 7963 | return 0; |
b587bdaf MS |
7964 | out: |
7965 | devlink_health_reporter_put(reporter); | |
7966 | return err; | |
a1e55ec0 EBE |
7967 | } |
7968 | ||
20a0943a EBE |
7969 | static int devlink_nl_cmd_health_reporter_recover_doit(struct sk_buff *skb, |
7970 | struct genl_info *info) | |
7971 | { | |
7972 | struct devlink *devlink = info->user_ptr[0]; | |
7973 | struct devlink_health_reporter *reporter; | |
b587bdaf | 7974 | int err; |
20a0943a EBE |
7975 | |
7976 | reporter = devlink_health_reporter_get_from_info(devlink, info); | |
7977 | if (!reporter) | |
7978 | return -EINVAL; | |
7979 | ||
e7a98105 | 7980 | err = devlink_health_reporter_recover(reporter, NULL, info->extack); |
b587bdaf MS |
7981 | |
7982 | devlink_health_reporter_put(reporter); | |
7983 | return err; | |
20a0943a EBE |
7984 | } |
7985 | ||
fca42a27 EBE |
7986 | static int devlink_nl_cmd_health_reporter_diagnose_doit(struct sk_buff *skb, |
7987 | struct genl_info *info) | |
7988 | { | |
7989 | struct devlink *devlink = info->user_ptr[0]; | |
7990 | struct devlink_health_reporter *reporter; | |
7991 | struct devlink_fmsg *fmsg; | |
7992 | int err; | |
7993 | ||
7994 | reporter = devlink_health_reporter_get_from_info(devlink, info); | |
7995 | if (!reporter) | |
7996 | return -EINVAL; | |
7997 | ||
b587bdaf MS |
7998 | if (!reporter->ops->diagnose) { |
7999 | devlink_health_reporter_put(reporter); | |
fca42a27 | 8000 | return -EOPNOTSUPP; |
b587bdaf | 8001 | } |
fca42a27 EBE |
8002 | |
8003 | fmsg = devlink_fmsg_alloc(); | |
b587bdaf MS |
8004 | if (!fmsg) { |
8005 | devlink_health_reporter_put(reporter); | |
fca42a27 | 8006 | return -ENOMEM; |
b587bdaf | 8007 | } |
fca42a27 EBE |
8008 | |
8009 | err = devlink_fmsg_obj_nest_start(fmsg); | |
8010 | if (err) | |
8011 | goto out; | |
8012 | ||
e7a98105 | 8013 | err = reporter->ops->diagnose(reporter, fmsg, info->extack); |
fca42a27 EBE |
8014 | if (err) |
8015 | goto out; | |
8016 | ||
8017 | err = devlink_fmsg_obj_nest_end(fmsg); | |
8018 | if (err) | |
8019 | goto out; | |
8020 | ||
8021 | err = devlink_fmsg_snd(fmsg, info, | |
8022 | DEVLINK_CMD_HEALTH_REPORTER_DIAGNOSE, 0); | |
8023 | ||
8024 | out: | |
8025 | devlink_fmsg_free(fmsg); | |
b587bdaf | 8026 | devlink_health_reporter_put(reporter); |
fca42a27 EBE |
8027 | return err; |
8028 | } | |
8029 | ||
e44ef4e4 AL |
8030 | static int |
8031 | devlink_nl_cmd_health_reporter_dump_get_dumpit(struct sk_buff *skb, | |
8032 | struct netlink_callback *cb) | |
35455e23 | 8033 | { |
35455e23 | 8034 | struct devlink_health_reporter *reporter; |
e44ef4e4 | 8035 | u64 start = cb->args[0]; |
35455e23 EBE |
8036 | int err; |
8037 | ||
e44ef4e4 | 8038 | reporter = devlink_health_reporter_get_from_cb(cb); |
35455e23 EBE |
8039 | if (!reporter) |
8040 | return -EINVAL; | |
8041 | ||
b587bdaf | 8042 | if (!reporter->ops->dump) { |
e44ef4e4 AL |
8043 | err = -EOPNOTSUPP; |
8044 | goto out; | |
b587bdaf | 8045 | } |
35455e23 | 8046 | mutex_lock(&reporter->dump_lock); |
e44ef4e4 | 8047 | if (!start) { |
e7a98105 | 8048 | err = devlink_health_do_dump(reporter, NULL, cb->extack); |
e44ef4e4 AL |
8049 | if (err) |
8050 | goto unlock; | |
8051 | cb->args[1] = reporter->dump_ts; | |
8052 | } | |
8053 | if (!reporter->dump_fmsg || cb->args[1] != reporter->dump_ts) { | |
8054 | NL_SET_ERR_MSG_MOD(cb->extack, "Dump trampled, please retry"); | |
8055 | err = -EAGAIN; | |
8056 | goto unlock; | |
8057 | } | |
35455e23 | 8058 | |
e44ef4e4 AL |
8059 | err = devlink_fmsg_dumpit(reporter->dump_fmsg, skb, cb, |
8060 | DEVLINK_CMD_HEALTH_REPORTER_DUMP_GET); | |
8061 | unlock: | |
35455e23 | 8062 | mutex_unlock(&reporter->dump_lock); |
e44ef4e4 | 8063 | out: |
b587bdaf | 8064 | devlink_health_reporter_put(reporter); |
35455e23 EBE |
8065 | return err; |
8066 | } | |
8067 | ||
8068 | static int | |
8069 | devlink_nl_cmd_health_reporter_dump_clear_doit(struct sk_buff *skb, | |
8070 | struct genl_info *info) | |
8071 | { | |
8072 | struct devlink *devlink = info->user_ptr[0]; | |
8073 | struct devlink_health_reporter *reporter; | |
8074 | ||
8075 | reporter = devlink_health_reporter_get_from_info(devlink, info); | |
8076 | if (!reporter) | |
8077 | return -EINVAL; | |
8078 | ||
b587bdaf MS |
8079 | if (!reporter->ops->dump) { |
8080 | devlink_health_reporter_put(reporter); | |
35455e23 | 8081 | return -EOPNOTSUPP; |
b587bdaf | 8082 | } |
35455e23 EBE |
8083 | |
8084 | mutex_lock(&reporter->dump_lock); | |
8085 | devlink_health_dump_clear(reporter); | |
8086 | mutex_unlock(&reporter->dump_lock); | |
b587bdaf | 8087 | devlink_health_reporter_put(reporter); |
35455e23 EBE |
8088 | return 0; |
8089 | } | |
8090 | ||
e2ce94dc JP |
8091 | static int devlink_nl_cmd_health_reporter_test_doit(struct sk_buff *skb, |
8092 | struct genl_info *info) | |
8093 | { | |
8094 | struct devlink *devlink = info->user_ptr[0]; | |
8095 | struct devlink_health_reporter *reporter; | |
8096 | int err; | |
8097 | ||
8098 | reporter = devlink_health_reporter_get_from_info(devlink, info); | |
8099 | if (!reporter) | |
8100 | return -EINVAL; | |
8101 | ||
8102 | if (!reporter->ops->test) { | |
8103 | devlink_health_reporter_put(reporter); | |
8104 | return -EOPNOTSUPP; | |
8105 | } | |
8106 | ||
8107 | err = reporter->ops->test(reporter, info->extack); | |
8108 | ||
8109 | devlink_health_reporter_put(reporter); | |
8110 | return err; | |
8111 | } | |
8112 | ||
0f420b6c | 8113 | struct devlink_stats { |
958751e0 ED |
8114 | u64_stats_t rx_bytes; |
8115 | u64_stats_t rx_packets; | |
0f420b6c IS |
8116 | struct u64_stats_sync syncp; |
8117 | }; | |
8118 | ||
1e8c6619 IS |
8119 | /** |
8120 | * struct devlink_trap_policer_item - Packet trap policer attributes. | |
8121 | * @policer: Immutable packet trap policer attributes. | |
8122 | * @rate: Rate in packets / sec. | |
8123 | * @burst: Burst size in packets. | |
8124 | * @list: trap_policer_list member. | |
8125 | * | |
8126 | * Describes packet trap policer attributes. Created by devlink during trap | |
8127 | * policer registration. | |
8128 | */ | |
8129 | struct devlink_trap_policer_item { | |
8130 | const struct devlink_trap_policer *policer; | |
8131 | u64 rate; | |
8132 | u64 burst; | |
8133 | struct list_head list; | |
8134 | }; | |
8135 | ||
0f420b6c IS |
8136 | /** |
8137 | * struct devlink_trap_group_item - Packet trap group attributes. | |
8138 | * @group: Immutable packet trap group attributes. | |
f9f54392 | 8139 | * @policer_item: Associated policer item. Can be NULL. |
0f420b6c IS |
8140 | * @list: trap_group_list member. |
8141 | * @stats: Trap group statistics. | |
8142 | * | |
8143 | * Describes packet trap group attributes. Created by devlink during trap | |
a09b37fc | 8144 | * group registration. |
0f420b6c IS |
8145 | */ |
8146 | struct devlink_trap_group_item { | |
8147 | const struct devlink_trap_group *group; | |
f9f54392 | 8148 | struct devlink_trap_policer_item *policer_item; |
0f420b6c IS |
8149 | struct list_head list; |
8150 | struct devlink_stats __percpu *stats; | |
8151 | }; | |
8152 | ||
8153 | /** | |
8154 | * struct devlink_trap_item - Packet trap attributes. | |
8155 | * @trap: Immutable packet trap attributes. | |
8156 | * @group_item: Associated group item. | |
8157 | * @list: trap_list member. | |
8158 | * @action: Trap action. | |
8159 | * @stats: Trap statistics. | |
8160 | * @priv: Driver private information. | |
8161 | * | |
8162 | * Describes both mutable and immutable packet trap attributes. Created by | |
8163 | * devlink during trap registration and used for all trap related operations. | |
8164 | */ | |
8165 | struct devlink_trap_item { | |
8166 | const struct devlink_trap *trap; | |
8167 | struct devlink_trap_group_item *group_item; | |
8168 | struct list_head list; | |
8169 | enum devlink_trap_action action; | |
8170 | struct devlink_stats __percpu *stats; | |
8171 | void *priv; | |
8172 | }; | |
8173 | ||
1e8c6619 IS |
8174 | static struct devlink_trap_policer_item * |
8175 | devlink_trap_policer_item_lookup(struct devlink *devlink, u32 id) | |
8176 | { | |
8177 | struct devlink_trap_policer_item *policer_item; | |
8178 | ||
8179 | list_for_each_entry(policer_item, &devlink->trap_policer_list, list) { | |
8180 | if (policer_item->policer->id == id) | |
8181 | return policer_item; | |
8182 | } | |
8183 | ||
8184 | return NULL; | |
8185 | } | |
8186 | ||
0f420b6c IS |
8187 | static struct devlink_trap_item * |
8188 | devlink_trap_item_lookup(struct devlink *devlink, const char *name) | |
8189 | { | |
8190 | struct devlink_trap_item *trap_item; | |
8191 | ||
8192 | list_for_each_entry(trap_item, &devlink->trap_list, list) { | |
8193 | if (!strcmp(trap_item->trap->name, name)) | |
8194 | return trap_item; | |
8195 | } | |
8196 | ||
8197 | return NULL; | |
8198 | } | |
8199 | ||
8200 | static struct devlink_trap_item * | |
8201 | devlink_trap_item_get_from_info(struct devlink *devlink, | |
8202 | struct genl_info *info) | |
8203 | { | |
8204 | struct nlattr *attr; | |
8205 | ||
8206 | if (!info->attrs[DEVLINK_ATTR_TRAP_NAME]) | |
8207 | return NULL; | |
8208 | attr = info->attrs[DEVLINK_ATTR_TRAP_NAME]; | |
8209 | ||
8210 | return devlink_trap_item_lookup(devlink, nla_data(attr)); | |
8211 | } | |
8212 | ||
8213 | static int | |
8214 | devlink_trap_action_get_from_info(struct genl_info *info, | |
8215 | enum devlink_trap_action *p_trap_action) | |
8216 | { | |
8217 | u8 val; | |
8218 | ||
8219 | val = nla_get_u8(info->attrs[DEVLINK_ATTR_TRAP_ACTION]); | |
8220 | switch (val) { | |
df561f66 GS |
8221 | case DEVLINK_TRAP_ACTION_DROP: |
8222 | case DEVLINK_TRAP_ACTION_TRAP: | |
9eefeabe | 8223 | case DEVLINK_TRAP_ACTION_MIRROR: |
0f420b6c IS |
8224 | *p_trap_action = val; |
8225 | break; | |
8226 | default: | |
8227 | return -EINVAL; | |
8228 | } | |
8229 | ||
8230 | return 0; | |
8231 | } | |
8232 | ||
8233 | static int devlink_trap_metadata_put(struct sk_buff *msg, | |
8234 | const struct devlink_trap *trap) | |
8235 | { | |
8236 | struct nlattr *attr; | |
8237 | ||
8238 | attr = nla_nest_start(msg, DEVLINK_ATTR_TRAP_METADATA); | |
8239 | if (!attr) | |
8240 | return -EMSGSIZE; | |
8241 | ||
8242 | if ((trap->metadata_cap & DEVLINK_TRAP_METADATA_TYPE_F_IN_PORT) && | |
8243 | nla_put_flag(msg, DEVLINK_ATTR_TRAP_METADATA_TYPE_IN_PORT)) | |
8244 | goto nla_put_failure; | |
85b0589e JP |
8245 | if ((trap->metadata_cap & DEVLINK_TRAP_METADATA_TYPE_F_FA_COOKIE) && |
8246 | nla_put_flag(msg, DEVLINK_ATTR_TRAP_METADATA_TYPE_FA_COOKIE)) | |
8247 | goto nla_put_failure; | |
0f420b6c IS |
8248 | |
8249 | nla_nest_end(msg, attr); | |
8250 | ||
8251 | return 0; | |
8252 | ||
8253 | nla_put_failure: | |
8254 | nla_nest_cancel(msg, attr); | |
8255 | return -EMSGSIZE; | |
8256 | } | |
8257 | ||
8258 | static void devlink_trap_stats_read(struct devlink_stats __percpu *trap_stats, | |
8259 | struct devlink_stats *stats) | |
8260 | { | |
8261 | int i; | |
8262 | ||
8263 | memset(stats, 0, sizeof(*stats)); | |
8264 | for_each_possible_cpu(i) { | |
8265 | struct devlink_stats *cpu_stats; | |
8266 | u64 rx_packets, rx_bytes; | |
8267 | unsigned int start; | |
8268 | ||
8269 | cpu_stats = per_cpu_ptr(trap_stats, i); | |
8270 | do { | |
8271 | start = u64_stats_fetch_begin_irq(&cpu_stats->syncp); | |
958751e0 ED |
8272 | rx_packets = u64_stats_read(&cpu_stats->rx_packets); |
8273 | rx_bytes = u64_stats_read(&cpu_stats->rx_bytes); | |
0f420b6c IS |
8274 | } while (u64_stats_fetch_retry_irq(&cpu_stats->syncp, start)); |
8275 | ||
958751e0 ED |
8276 | u64_stats_add(&stats->rx_packets, rx_packets); |
8277 | u64_stats_add(&stats->rx_bytes, rx_bytes); | |
0f420b6c IS |
8278 | } |
8279 | } | |
8280 | ||
ddee9dbc OM |
8281 | static int |
8282 | devlink_trap_group_stats_put(struct sk_buff *msg, | |
8283 | struct devlink_stats __percpu *trap_stats) | |
0f420b6c IS |
8284 | { |
8285 | struct devlink_stats stats; | |
8286 | struct nlattr *attr; | |
8287 | ||
8288 | devlink_trap_stats_read(trap_stats, &stats); | |
8289 | ||
8290 | attr = nla_nest_start(msg, DEVLINK_ATTR_STATS); | |
8291 | if (!attr) | |
8292 | return -EMSGSIZE; | |
8293 | ||
8294 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_STATS_RX_PACKETS, | |
958751e0 ED |
8295 | u64_stats_read(&stats.rx_packets), |
8296 | DEVLINK_ATTR_PAD)) | |
0f420b6c IS |
8297 | goto nla_put_failure; |
8298 | ||
8299 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_STATS_RX_BYTES, | |
958751e0 ED |
8300 | u64_stats_read(&stats.rx_bytes), |
8301 | DEVLINK_ATTR_PAD)) | |
0f420b6c IS |
8302 | goto nla_put_failure; |
8303 | ||
8304 | nla_nest_end(msg, attr); | |
8305 | ||
8306 | return 0; | |
8307 | ||
8308 | nla_put_failure: | |
8309 | nla_nest_cancel(msg, attr); | |
8310 | return -EMSGSIZE; | |
8311 | } | |
8312 | ||
ddee9dbc OM |
8313 | static int devlink_trap_stats_put(struct sk_buff *msg, struct devlink *devlink, |
8314 | const struct devlink_trap_item *trap_item) | |
8315 | { | |
8316 | struct devlink_stats stats; | |
8317 | struct nlattr *attr; | |
8318 | u64 drops = 0; | |
8319 | int err; | |
8320 | ||
8321 | if (devlink->ops->trap_drop_counter_get) { | |
8322 | err = devlink->ops->trap_drop_counter_get(devlink, | |
8323 | trap_item->trap, | |
8324 | &drops); | |
8325 | if (err) | |
8326 | return err; | |
8327 | } | |
8328 | ||
8329 | devlink_trap_stats_read(trap_item->stats, &stats); | |
8330 | ||
8331 | attr = nla_nest_start(msg, DEVLINK_ATTR_STATS); | |
8332 | if (!attr) | |
8333 | return -EMSGSIZE; | |
8334 | ||
8335 | if (devlink->ops->trap_drop_counter_get && | |
8336 | nla_put_u64_64bit(msg, DEVLINK_ATTR_STATS_RX_DROPPED, drops, | |
8337 | DEVLINK_ATTR_PAD)) | |
8338 | goto nla_put_failure; | |
8339 | ||
8340 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_STATS_RX_PACKETS, | |
958751e0 ED |
8341 | u64_stats_read(&stats.rx_packets), |
8342 | DEVLINK_ATTR_PAD)) | |
ddee9dbc OM |
8343 | goto nla_put_failure; |
8344 | ||
8345 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_STATS_RX_BYTES, | |
958751e0 ED |
8346 | u64_stats_read(&stats.rx_bytes), |
8347 | DEVLINK_ATTR_PAD)) | |
ddee9dbc OM |
8348 | goto nla_put_failure; |
8349 | ||
8350 | nla_nest_end(msg, attr); | |
8351 | ||
8352 | return 0; | |
8353 | ||
8354 | nla_put_failure: | |
8355 | nla_nest_cancel(msg, attr); | |
8356 | return -EMSGSIZE; | |
8357 | } | |
8358 | ||
0f420b6c IS |
8359 | static int devlink_nl_trap_fill(struct sk_buff *msg, struct devlink *devlink, |
8360 | const struct devlink_trap_item *trap_item, | |
8361 | enum devlink_command cmd, u32 portid, u32 seq, | |
8362 | int flags) | |
8363 | { | |
8364 | struct devlink_trap_group_item *group_item = trap_item->group_item; | |
8365 | void *hdr; | |
8366 | int err; | |
8367 | ||
8368 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
8369 | if (!hdr) | |
8370 | return -EMSGSIZE; | |
8371 | ||
8372 | if (devlink_nl_put_handle(msg, devlink)) | |
8373 | goto nla_put_failure; | |
8374 | ||
8375 | if (nla_put_string(msg, DEVLINK_ATTR_TRAP_GROUP_NAME, | |
8376 | group_item->group->name)) | |
8377 | goto nla_put_failure; | |
8378 | ||
8379 | if (nla_put_string(msg, DEVLINK_ATTR_TRAP_NAME, trap_item->trap->name)) | |
8380 | goto nla_put_failure; | |
8381 | ||
8382 | if (nla_put_u8(msg, DEVLINK_ATTR_TRAP_TYPE, trap_item->trap->type)) | |
8383 | goto nla_put_failure; | |
8384 | ||
8385 | if (trap_item->trap->generic && | |
8386 | nla_put_flag(msg, DEVLINK_ATTR_TRAP_GENERIC)) | |
8387 | goto nla_put_failure; | |
8388 | ||
8389 | if (nla_put_u8(msg, DEVLINK_ATTR_TRAP_ACTION, trap_item->action)) | |
8390 | goto nla_put_failure; | |
8391 | ||
8392 | err = devlink_trap_metadata_put(msg, trap_item->trap); | |
8393 | if (err) | |
8394 | goto nla_put_failure; | |
8395 | ||
ddee9dbc | 8396 | err = devlink_trap_stats_put(msg, devlink, trap_item); |
0f420b6c IS |
8397 | if (err) |
8398 | goto nla_put_failure; | |
8399 | ||
8400 | genlmsg_end(msg, hdr); | |
8401 | ||
8402 | return 0; | |
8403 | ||
8404 | nla_put_failure: | |
8405 | genlmsg_cancel(msg, hdr); | |
8406 | return -EMSGSIZE; | |
8407 | } | |
8408 | ||
8409 | static int devlink_nl_cmd_trap_get_doit(struct sk_buff *skb, | |
8410 | struct genl_info *info) | |
8411 | { | |
8412 | struct netlink_ext_ack *extack = info->extack; | |
8413 | struct devlink *devlink = info->user_ptr[0]; | |
8414 | struct devlink_trap_item *trap_item; | |
8415 | struct sk_buff *msg; | |
8416 | int err; | |
8417 | ||
8418 | if (list_empty(&devlink->trap_list)) | |
8419 | return -EOPNOTSUPP; | |
8420 | ||
8421 | trap_item = devlink_trap_item_get_from_info(devlink, info); | |
8422 | if (!trap_item) { | |
8423 | NL_SET_ERR_MSG_MOD(extack, "Device did not register this trap"); | |
8424 | return -ENOENT; | |
8425 | } | |
8426 | ||
8427 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
8428 | if (!msg) | |
8429 | return -ENOMEM; | |
8430 | ||
8431 | err = devlink_nl_trap_fill(msg, devlink, trap_item, | |
8432 | DEVLINK_CMD_TRAP_NEW, info->snd_portid, | |
8433 | info->snd_seq, 0); | |
8434 | if (err) | |
8435 | goto err_trap_fill; | |
8436 | ||
8437 | return genlmsg_reply(msg, info); | |
8438 | ||
8439 | err_trap_fill: | |
8440 | nlmsg_free(msg); | |
8441 | return err; | |
8442 | } | |
8443 | ||
8444 | static int devlink_nl_cmd_trap_get_dumpit(struct sk_buff *msg, | |
8445 | struct netlink_callback *cb) | |
8446 | { | |
8447 | struct devlink_trap_item *trap_item; | |
8448 | struct devlink *devlink; | |
8449 | int start = cb->args[0]; | |
11a861d7 | 8450 | unsigned long index; |
0f420b6c IS |
8451 | int idx = 0; |
8452 | int err; | |
8453 | ||
294c4f57 | 8454 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
7715023a | 8455 | devl_lock(devlink); |
0f420b6c IS |
8456 | list_for_each_entry(trap_item, &devlink->trap_list, list) { |
8457 | if (idx < start) { | |
8458 | idx++; | |
8459 | continue; | |
8460 | } | |
8461 | err = devlink_nl_trap_fill(msg, devlink, trap_item, | |
8462 | DEVLINK_CMD_TRAP_NEW, | |
8463 | NETLINK_CB(cb->skb).portid, | |
8464 | cb->nlh->nlmsg_seq, | |
8465 | NLM_F_MULTI); | |
8466 | if (err) { | |
7715023a | 8467 | devl_unlock(devlink); |
437ebfd9 | 8468 | devlink_put(devlink); |
0f420b6c IS |
8469 | goto out; |
8470 | } | |
8471 | idx++; | |
8472 | } | |
7715023a | 8473 | devl_unlock(devlink); |
437ebfd9 | 8474 | devlink_put(devlink); |
0f420b6c IS |
8475 | } |
8476 | out: | |
0f420b6c IS |
8477 | cb->args[0] = idx; |
8478 | return msg->len; | |
8479 | } | |
8480 | ||
8481 | static int __devlink_trap_action_set(struct devlink *devlink, | |
8482 | struct devlink_trap_item *trap_item, | |
8483 | enum devlink_trap_action trap_action, | |
8484 | struct netlink_ext_ack *extack) | |
8485 | { | |
8486 | int err; | |
8487 | ||
8488 | if (trap_item->action != trap_action && | |
8489 | trap_item->trap->type != DEVLINK_TRAP_TYPE_DROP) { | |
8490 | NL_SET_ERR_MSG_MOD(extack, "Cannot change action of non-drop traps. Skipping"); | |
8491 | return 0; | |
8492 | } | |
8493 | ||
8494 | err = devlink->ops->trap_action_set(devlink, trap_item->trap, | |
c88e11e0 | 8495 | trap_action, extack); |
0f420b6c IS |
8496 | if (err) |
8497 | return err; | |
8498 | ||
8499 | trap_item->action = trap_action; | |
8500 | ||
8501 | return 0; | |
8502 | } | |
8503 | ||
8504 | static int devlink_trap_action_set(struct devlink *devlink, | |
8505 | struct devlink_trap_item *trap_item, | |
8506 | struct genl_info *info) | |
8507 | { | |
8508 | enum devlink_trap_action trap_action; | |
8509 | int err; | |
8510 | ||
8511 | if (!info->attrs[DEVLINK_ATTR_TRAP_ACTION]) | |
8512 | return 0; | |
8513 | ||
8514 | err = devlink_trap_action_get_from_info(info, &trap_action); | |
8515 | if (err) { | |
8516 | NL_SET_ERR_MSG_MOD(info->extack, "Invalid trap action"); | |
8517 | return -EINVAL; | |
8518 | } | |
8519 | ||
8520 | return __devlink_trap_action_set(devlink, trap_item, trap_action, | |
8521 | info->extack); | |
8522 | } | |
8523 | ||
8524 | static int devlink_nl_cmd_trap_set_doit(struct sk_buff *skb, | |
8525 | struct genl_info *info) | |
8526 | { | |
8527 | struct netlink_ext_ack *extack = info->extack; | |
8528 | struct devlink *devlink = info->user_ptr[0]; | |
8529 | struct devlink_trap_item *trap_item; | |
0f420b6c IS |
8530 | |
8531 | if (list_empty(&devlink->trap_list)) | |
8532 | return -EOPNOTSUPP; | |
8533 | ||
8534 | trap_item = devlink_trap_item_get_from_info(devlink, info); | |
8535 | if (!trap_item) { | |
8536 | NL_SET_ERR_MSG_MOD(extack, "Device did not register this trap"); | |
8537 | return -ENOENT; | |
8538 | } | |
8539 | ||
8daa76a5 | 8540 | return devlink_trap_action_set(devlink, trap_item, info); |
0f420b6c IS |
8541 | } |
8542 | ||
8543 | static struct devlink_trap_group_item * | |
8544 | devlink_trap_group_item_lookup(struct devlink *devlink, const char *name) | |
8545 | { | |
8546 | struct devlink_trap_group_item *group_item; | |
8547 | ||
8548 | list_for_each_entry(group_item, &devlink->trap_group_list, list) { | |
8549 | if (!strcmp(group_item->group->name, name)) | |
8550 | return group_item; | |
8551 | } | |
8552 | ||
8553 | return NULL; | |
8554 | } | |
8555 | ||
107f1678 IS |
8556 | static struct devlink_trap_group_item * |
8557 | devlink_trap_group_item_lookup_by_id(struct devlink *devlink, u16 id) | |
8558 | { | |
8559 | struct devlink_trap_group_item *group_item; | |
8560 | ||
8561 | list_for_each_entry(group_item, &devlink->trap_group_list, list) { | |
8562 | if (group_item->group->id == id) | |
8563 | return group_item; | |
8564 | } | |
8565 | ||
8566 | return NULL; | |
8567 | } | |
8568 | ||
0f420b6c IS |
8569 | static struct devlink_trap_group_item * |
8570 | devlink_trap_group_item_get_from_info(struct devlink *devlink, | |
8571 | struct genl_info *info) | |
8572 | { | |
8573 | char *name; | |
8574 | ||
8575 | if (!info->attrs[DEVLINK_ATTR_TRAP_GROUP_NAME]) | |
8576 | return NULL; | |
8577 | name = nla_data(info->attrs[DEVLINK_ATTR_TRAP_GROUP_NAME]); | |
8578 | ||
8579 | return devlink_trap_group_item_lookup(devlink, name); | |
8580 | } | |
8581 | ||
8582 | static int | |
8583 | devlink_nl_trap_group_fill(struct sk_buff *msg, struct devlink *devlink, | |
8584 | const struct devlink_trap_group_item *group_item, | |
8585 | enum devlink_command cmd, u32 portid, u32 seq, | |
8586 | int flags) | |
8587 | { | |
8588 | void *hdr; | |
8589 | int err; | |
8590 | ||
8591 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
8592 | if (!hdr) | |
8593 | return -EMSGSIZE; | |
8594 | ||
8595 | if (devlink_nl_put_handle(msg, devlink)) | |
8596 | goto nla_put_failure; | |
8597 | ||
8598 | if (nla_put_string(msg, DEVLINK_ATTR_TRAP_GROUP_NAME, | |
8599 | group_item->group->name)) | |
8600 | goto nla_put_failure; | |
8601 | ||
8602 | if (group_item->group->generic && | |
8603 | nla_put_flag(msg, DEVLINK_ATTR_TRAP_GENERIC)) | |
8604 | goto nla_put_failure; | |
8605 | ||
f9f54392 IS |
8606 | if (group_item->policer_item && |
8607 | nla_put_u32(msg, DEVLINK_ATTR_TRAP_POLICER_ID, | |
8608 | group_item->policer_item->policer->id)) | |
8609 | goto nla_put_failure; | |
8610 | ||
ddee9dbc | 8611 | err = devlink_trap_group_stats_put(msg, group_item->stats); |
0f420b6c IS |
8612 | if (err) |
8613 | goto nla_put_failure; | |
8614 | ||
8615 | genlmsg_end(msg, hdr); | |
8616 | ||
8617 | return 0; | |
8618 | ||
8619 | nla_put_failure: | |
8620 | genlmsg_cancel(msg, hdr); | |
8621 | return -EMSGSIZE; | |
8622 | } | |
8623 | ||
8624 | static int devlink_nl_cmd_trap_group_get_doit(struct sk_buff *skb, | |
8625 | struct genl_info *info) | |
8626 | { | |
8627 | struct netlink_ext_ack *extack = info->extack; | |
8628 | struct devlink *devlink = info->user_ptr[0]; | |
8629 | struct devlink_trap_group_item *group_item; | |
8630 | struct sk_buff *msg; | |
8631 | int err; | |
8632 | ||
8633 | if (list_empty(&devlink->trap_group_list)) | |
8634 | return -EOPNOTSUPP; | |
8635 | ||
8636 | group_item = devlink_trap_group_item_get_from_info(devlink, info); | |
8637 | if (!group_item) { | |
8638 | NL_SET_ERR_MSG_MOD(extack, "Device did not register this trap group"); | |
8639 | return -ENOENT; | |
8640 | } | |
8641 | ||
8642 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
8643 | if (!msg) | |
8644 | return -ENOMEM; | |
8645 | ||
8646 | err = devlink_nl_trap_group_fill(msg, devlink, group_item, | |
8647 | DEVLINK_CMD_TRAP_GROUP_NEW, | |
8648 | info->snd_portid, info->snd_seq, 0); | |
8649 | if (err) | |
8650 | goto err_trap_group_fill; | |
8651 | ||
8652 | return genlmsg_reply(msg, info); | |
8653 | ||
8654 | err_trap_group_fill: | |
8655 | nlmsg_free(msg); | |
8656 | return err; | |
8657 | } | |
8658 | ||
8659 | static int devlink_nl_cmd_trap_group_get_dumpit(struct sk_buff *msg, | |
8660 | struct netlink_callback *cb) | |
8661 | { | |
8662 | enum devlink_command cmd = DEVLINK_CMD_TRAP_GROUP_NEW; | |
8663 | struct devlink_trap_group_item *group_item; | |
8664 | u32 portid = NETLINK_CB(cb->skb).portid; | |
8665 | struct devlink *devlink; | |
8666 | int start = cb->args[0]; | |
11a861d7 | 8667 | unsigned long index; |
0f420b6c IS |
8668 | int idx = 0; |
8669 | int err; | |
8670 | ||
294c4f57 | 8671 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
7715023a | 8672 | devl_lock(devlink); |
0f420b6c IS |
8673 | list_for_each_entry(group_item, &devlink->trap_group_list, |
8674 | list) { | |
8675 | if (idx < start) { | |
8676 | idx++; | |
8677 | continue; | |
8678 | } | |
8679 | err = devlink_nl_trap_group_fill(msg, devlink, | |
8680 | group_item, cmd, | |
8681 | portid, | |
8682 | cb->nlh->nlmsg_seq, | |
8683 | NLM_F_MULTI); | |
8684 | if (err) { | |
7715023a | 8685 | devl_unlock(devlink); |
437ebfd9 | 8686 | devlink_put(devlink); |
0f420b6c IS |
8687 | goto out; |
8688 | } | |
8689 | idx++; | |
8690 | } | |
7715023a | 8691 | devl_unlock(devlink); |
437ebfd9 | 8692 | devlink_put(devlink); |
0f420b6c IS |
8693 | } |
8694 | out: | |
0f420b6c IS |
8695 | cb->args[0] = idx; |
8696 | return msg->len; | |
8697 | } | |
8698 | ||
8699 | static int | |
8700 | __devlink_trap_group_action_set(struct devlink *devlink, | |
8701 | struct devlink_trap_group_item *group_item, | |
8702 | enum devlink_trap_action trap_action, | |
8703 | struct netlink_ext_ack *extack) | |
8704 | { | |
8705 | const char *group_name = group_item->group->name; | |
8706 | struct devlink_trap_item *trap_item; | |
8707 | int err; | |
8708 | ||
c50bf2be IC |
8709 | if (devlink->ops->trap_group_action_set) { |
8710 | err = devlink->ops->trap_group_action_set(devlink, group_item->group, | |
8711 | trap_action, extack); | |
8712 | if (err) | |
8713 | return err; | |
8714 | ||
8715 | list_for_each_entry(trap_item, &devlink->trap_list, list) { | |
8716 | if (strcmp(trap_item->group_item->group->name, group_name)) | |
8717 | continue; | |
8718 | if (trap_item->action != trap_action && | |
8719 | trap_item->trap->type != DEVLINK_TRAP_TYPE_DROP) | |
8720 | continue; | |
8721 | trap_item->action = trap_action; | |
8722 | } | |
8723 | ||
8724 | return 0; | |
8725 | } | |
8726 | ||
0f420b6c | 8727 | list_for_each_entry(trap_item, &devlink->trap_list, list) { |
107f1678 | 8728 | if (strcmp(trap_item->group_item->group->name, group_name)) |
0f420b6c IS |
8729 | continue; |
8730 | err = __devlink_trap_action_set(devlink, trap_item, | |
8731 | trap_action, extack); | |
8732 | if (err) | |
8733 | return err; | |
8734 | } | |
8735 | ||
8736 | return 0; | |
8737 | } | |
8738 | ||
8739 | static int | |
8740 | devlink_trap_group_action_set(struct devlink *devlink, | |
8741 | struct devlink_trap_group_item *group_item, | |
c064875a | 8742 | struct genl_info *info, bool *p_modified) |
0f420b6c IS |
8743 | { |
8744 | enum devlink_trap_action trap_action; | |
8745 | int err; | |
8746 | ||
8747 | if (!info->attrs[DEVLINK_ATTR_TRAP_ACTION]) | |
8748 | return 0; | |
8749 | ||
8750 | err = devlink_trap_action_get_from_info(info, &trap_action); | |
8751 | if (err) { | |
8752 | NL_SET_ERR_MSG_MOD(info->extack, "Invalid trap action"); | |
8753 | return -EINVAL; | |
8754 | } | |
8755 | ||
8756 | err = __devlink_trap_group_action_set(devlink, group_item, trap_action, | |
8757 | info->extack); | |
8758 | if (err) | |
8759 | return err; | |
8760 | ||
c064875a IS |
8761 | *p_modified = true; |
8762 | ||
8763 | return 0; | |
8764 | } | |
8765 | ||
8766 | static int devlink_trap_group_set(struct devlink *devlink, | |
8767 | struct devlink_trap_group_item *group_item, | |
8768 | struct genl_info *info) | |
8769 | { | |
8770 | struct devlink_trap_policer_item *policer_item; | |
8771 | struct netlink_ext_ack *extack = info->extack; | |
8772 | const struct devlink_trap_policer *policer; | |
8773 | struct nlattr **attrs = info->attrs; | |
8774 | int err; | |
8775 | ||
8776 | if (!attrs[DEVLINK_ATTR_TRAP_POLICER_ID]) | |
8777 | return 0; | |
8778 | ||
8779 | if (!devlink->ops->trap_group_set) | |
8780 | return -EOPNOTSUPP; | |
8781 | ||
8782 | policer_item = group_item->policer_item; | |
8783 | if (attrs[DEVLINK_ATTR_TRAP_POLICER_ID]) { | |
8784 | u32 policer_id; | |
8785 | ||
8786 | policer_id = nla_get_u32(attrs[DEVLINK_ATTR_TRAP_POLICER_ID]); | |
8787 | policer_item = devlink_trap_policer_item_lookup(devlink, | |
8788 | policer_id); | |
8789 | if (policer_id && !policer_item) { | |
8790 | NL_SET_ERR_MSG_MOD(extack, "Device did not register this trap policer"); | |
8791 | return -ENOENT; | |
8792 | } | |
8793 | } | |
8794 | policer = policer_item ? policer_item->policer : NULL; | |
8795 | ||
c88e11e0 IS |
8796 | err = devlink->ops->trap_group_set(devlink, group_item->group, policer, |
8797 | extack); | |
c064875a IS |
8798 | if (err) |
8799 | return err; | |
8800 | ||
8801 | group_item->policer_item = policer_item; | |
8802 | ||
0f420b6c IS |
8803 | return 0; |
8804 | } | |
8805 | ||
8806 | static int devlink_nl_cmd_trap_group_set_doit(struct sk_buff *skb, | |
8807 | struct genl_info *info) | |
8808 | { | |
8809 | struct netlink_ext_ack *extack = info->extack; | |
8810 | struct devlink *devlink = info->user_ptr[0]; | |
8811 | struct devlink_trap_group_item *group_item; | |
c064875a | 8812 | bool modified = false; |
0f420b6c IS |
8813 | int err; |
8814 | ||
8815 | if (list_empty(&devlink->trap_group_list)) | |
8816 | return -EOPNOTSUPP; | |
8817 | ||
8818 | group_item = devlink_trap_group_item_get_from_info(devlink, info); | |
8819 | if (!group_item) { | |
8820 | NL_SET_ERR_MSG_MOD(extack, "Device did not register this trap group"); | |
8821 | return -ENOENT; | |
8822 | } | |
8823 | ||
c064875a IS |
8824 | err = devlink_trap_group_action_set(devlink, group_item, info, |
8825 | &modified); | |
0f420b6c IS |
8826 | if (err) |
8827 | return err; | |
8828 | ||
c064875a IS |
8829 | err = devlink_trap_group_set(devlink, group_item, info); |
8830 | if (err) | |
8831 | goto err_trap_group_set; | |
8832 | ||
0f420b6c | 8833 | return 0; |
c064875a IS |
8834 | |
8835 | err_trap_group_set: | |
8836 | if (modified) | |
8837 | NL_SET_ERR_MSG_MOD(extack, "Trap group set failed, but some changes were committed already"); | |
8838 | return err; | |
0f420b6c IS |
8839 | } |
8840 | ||
1e8c6619 IS |
8841 | static struct devlink_trap_policer_item * |
8842 | devlink_trap_policer_item_get_from_info(struct devlink *devlink, | |
8843 | struct genl_info *info) | |
8844 | { | |
8845 | u32 id; | |
8846 | ||
8847 | if (!info->attrs[DEVLINK_ATTR_TRAP_POLICER_ID]) | |
8848 | return NULL; | |
8849 | id = nla_get_u32(info->attrs[DEVLINK_ATTR_TRAP_POLICER_ID]); | |
8850 | ||
8851 | return devlink_trap_policer_item_lookup(devlink, id); | |
8852 | } | |
8853 | ||
8854 | static int | |
8855 | devlink_trap_policer_stats_put(struct sk_buff *msg, struct devlink *devlink, | |
8856 | const struct devlink_trap_policer *policer) | |
8857 | { | |
8858 | struct nlattr *attr; | |
8859 | u64 drops; | |
8860 | int err; | |
8861 | ||
8862 | if (!devlink->ops->trap_policer_counter_get) | |
8863 | return 0; | |
8864 | ||
8865 | err = devlink->ops->trap_policer_counter_get(devlink, policer, &drops); | |
8866 | if (err) | |
8867 | return err; | |
8868 | ||
8869 | attr = nla_nest_start(msg, DEVLINK_ATTR_STATS); | |
8870 | if (!attr) | |
8871 | return -EMSGSIZE; | |
8872 | ||
8873 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_STATS_RX_DROPPED, drops, | |
8874 | DEVLINK_ATTR_PAD)) | |
8875 | goto nla_put_failure; | |
8876 | ||
8877 | nla_nest_end(msg, attr); | |
8878 | ||
8879 | return 0; | |
8880 | ||
8881 | nla_put_failure: | |
8882 | nla_nest_cancel(msg, attr); | |
8883 | return -EMSGSIZE; | |
8884 | } | |
8885 | ||
8886 | static int | |
8887 | devlink_nl_trap_policer_fill(struct sk_buff *msg, struct devlink *devlink, | |
8888 | const struct devlink_trap_policer_item *policer_item, | |
8889 | enum devlink_command cmd, u32 portid, u32 seq, | |
8890 | int flags) | |
8891 | { | |
8892 | void *hdr; | |
8893 | int err; | |
8894 | ||
8895 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); | |
8896 | if (!hdr) | |
8897 | return -EMSGSIZE; | |
8898 | ||
8899 | if (devlink_nl_put_handle(msg, devlink)) | |
8900 | goto nla_put_failure; | |
8901 | ||
8902 | if (nla_put_u32(msg, DEVLINK_ATTR_TRAP_POLICER_ID, | |
8903 | policer_item->policer->id)) | |
8904 | goto nla_put_failure; | |
8905 | ||
8906 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_TRAP_POLICER_RATE, | |
8907 | policer_item->rate, DEVLINK_ATTR_PAD)) | |
8908 | goto nla_put_failure; | |
8909 | ||
8910 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_TRAP_POLICER_BURST, | |
8911 | policer_item->burst, DEVLINK_ATTR_PAD)) | |
8912 | goto nla_put_failure; | |
8913 | ||
8914 | err = devlink_trap_policer_stats_put(msg, devlink, | |
8915 | policer_item->policer); | |
8916 | if (err) | |
8917 | goto nla_put_failure; | |
8918 | ||
8919 | genlmsg_end(msg, hdr); | |
8920 | ||
8921 | return 0; | |
8922 | ||
8923 | nla_put_failure: | |
8924 | genlmsg_cancel(msg, hdr); | |
8925 | return -EMSGSIZE; | |
8926 | } | |
8927 | ||
8928 | static int devlink_nl_cmd_trap_policer_get_doit(struct sk_buff *skb, | |
8929 | struct genl_info *info) | |
8930 | { | |
8931 | struct devlink_trap_policer_item *policer_item; | |
8932 | struct netlink_ext_ack *extack = info->extack; | |
8933 | struct devlink *devlink = info->user_ptr[0]; | |
8934 | struct sk_buff *msg; | |
8935 | int err; | |
8936 | ||
8937 | if (list_empty(&devlink->trap_policer_list)) | |
8938 | return -EOPNOTSUPP; | |
8939 | ||
8940 | policer_item = devlink_trap_policer_item_get_from_info(devlink, info); | |
8941 | if (!policer_item) { | |
8942 | NL_SET_ERR_MSG_MOD(extack, "Device did not register this trap policer"); | |
8943 | return -ENOENT; | |
8944 | } | |
8945 | ||
8946 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
8947 | if (!msg) | |
8948 | return -ENOMEM; | |
8949 | ||
8950 | err = devlink_nl_trap_policer_fill(msg, devlink, policer_item, | |
8951 | DEVLINK_CMD_TRAP_POLICER_NEW, | |
8952 | info->snd_portid, info->snd_seq, 0); | |
8953 | if (err) | |
8954 | goto err_trap_policer_fill; | |
8955 | ||
8956 | return genlmsg_reply(msg, info); | |
8957 | ||
8958 | err_trap_policer_fill: | |
8959 | nlmsg_free(msg); | |
8960 | return err; | |
8961 | } | |
8962 | ||
8963 | static int devlink_nl_cmd_trap_policer_get_dumpit(struct sk_buff *msg, | |
8964 | struct netlink_callback *cb) | |
8965 | { | |
8966 | enum devlink_command cmd = DEVLINK_CMD_TRAP_POLICER_NEW; | |
8967 | struct devlink_trap_policer_item *policer_item; | |
8968 | u32 portid = NETLINK_CB(cb->skb).portid; | |
8969 | struct devlink *devlink; | |
8970 | int start = cb->args[0]; | |
11a861d7 | 8971 | unsigned long index; |
1e8c6619 IS |
8972 | int idx = 0; |
8973 | int err; | |
8974 | ||
294c4f57 | 8975 | devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) { |
7715023a | 8976 | devl_lock(devlink); |
1e8c6619 IS |
8977 | list_for_each_entry(policer_item, &devlink->trap_policer_list, |
8978 | list) { | |
8979 | if (idx < start) { | |
8980 | idx++; | |
8981 | continue; | |
8982 | } | |
8983 | err = devlink_nl_trap_policer_fill(msg, devlink, | |
8984 | policer_item, cmd, | |
8985 | portid, | |
8986 | cb->nlh->nlmsg_seq, | |
8987 | NLM_F_MULTI); | |
8988 | if (err) { | |
7715023a | 8989 | devl_unlock(devlink); |
437ebfd9 | 8990 | devlink_put(devlink); |
1e8c6619 IS |
8991 | goto out; |
8992 | } | |
8993 | idx++; | |
8994 | } | |
7715023a | 8995 | devl_unlock(devlink); |
437ebfd9 | 8996 | devlink_put(devlink); |
1e8c6619 IS |
8997 | } |
8998 | out: | |
1e8c6619 IS |
8999 | cb->args[0] = idx; |
9000 | return msg->len; | |
9001 | } | |
9002 | ||
9003 | static int | |
9004 | devlink_trap_policer_set(struct devlink *devlink, | |
9005 | struct devlink_trap_policer_item *policer_item, | |
9006 | struct genl_info *info) | |
9007 | { | |
9008 | struct netlink_ext_ack *extack = info->extack; | |
9009 | struct nlattr **attrs = info->attrs; | |
9010 | u64 rate, burst; | |
9011 | int err; | |
9012 | ||
9013 | rate = policer_item->rate; | |
9014 | burst = policer_item->burst; | |
9015 | ||
9016 | if (attrs[DEVLINK_ATTR_TRAP_POLICER_RATE]) | |
9017 | rate = nla_get_u64(attrs[DEVLINK_ATTR_TRAP_POLICER_RATE]); | |
9018 | ||
9019 | if (attrs[DEVLINK_ATTR_TRAP_POLICER_BURST]) | |
9020 | burst = nla_get_u64(attrs[DEVLINK_ATTR_TRAP_POLICER_BURST]); | |
9021 | ||
9022 | if (rate < policer_item->policer->min_rate) { | |
9023 | NL_SET_ERR_MSG_MOD(extack, "Policer rate lower than limit"); | |
9024 | return -EINVAL; | |
9025 | } | |
9026 | ||
9027 | if (rate > policer_item->policer->max_rate) { | |
9028 | NL_SET_ERR_MSG_MOD(extack, "Policer rate higher than limit"); | |
9029 | return -EINVAL; | |
9030 | } | |
9031 | ||
9032 | if (burst < policer_item->policer->min_burst) { | |
9033 | NL_SET_ERR_MSG_MOD(extack, "Policer burst size lower than limit"); | |
9034 | return -EINVAL; | |
9035 | } | |
9036 | ||
9037 | if (burst > policer_item->policer->max_burst) { | |
9038 | NL_SET_ERR_MSG_MOD(extack, "Policer burst size higher than limit"); | |
9039 | return -EINVAL; | |
9040 | } | |
9041 | ||
9042 | err = devlink->ops->trap_policer_set(devlink, policer_item->policer, | |
9043 | rate, burst, info->extack); | |
9044 | if (err) | |
9045 | return err; | |
9046 | ||
9047 | policer_item->rate = rate; | |
9048 | policer_item->burst = burst; | |
9049 | ||
9050 | return 0; | |
9051 | } | |
9052 | ||
9053 | static int devlink_nl_cmd_trap_policer_set_doit(struct sk_buff *skb, | |
9054 | struct genl_info *info) | |
9055 | { | |
9056 | struct devlink_trap_policer_item *policer_item; | |
9057 | struct netlink_ext_ack *extack = info->extack; | |
9058 | struct devlink *devlink = info->user_ptr[0]; | |
9059 | ||
9060 | if (list_empty(&devlink->trap_policer_list)) | |
9061 | return -EOPNOTSUPP; | |
9062 | ||
9063 | if (!devlink->ops->trap_policer_set) | |
9064 | return -EOPNOTSUPP; | |
9065 | ||
9066 | policer_item = devlink_trap_policer_item_get_from_info(devlink, info); | |
9067 | if (!policer_item) { | |
9068 | NL_SET_ERR_MSG_MOD(extack, "Device did not register this trap policer"); | |
9069 | return -ENOENT; | |
9070 | } | |
9071 | ||
9072 | return devlink_trap_policer_set(devlink, policer_item, info); | |
9073 | } | |
9074 | ||
bfcd3a46 | 9075 | static const struct nla_policy devlink_nl_policy[DEVLINK_ATTR_MAX + 1] = { |
1e8c6619 IS |
9076 | [DEVLINK_ATTR_UNSPEC] = { .strict_start_type = |
9077 | DEVLINK_ATTR_TRAP_POLICER_ID }, | |
bfcd3a46 JP |
9078 | [DEVLINK_ATTR_BUS_NAME] = { .type = NLA_NUL_STRING }, |
9079 | [DEVLINK_ATTR_DEV_NAME] = { .type = NLA_NUL_STRING }, | |
9080 | [DEVLINK_ATTR_PORT_INDEX] = { .type = NLA_U32 }, | |
c49a9440 PP |
9081 | [DEVLINK_ATTR_PORT_TYPE] = NLA_POLICY_RANGE(NLA_U16, DEVLINK_PORT_TYPE_AUTO, |
9082 | DEVLINK_PORT_TYPE_IB), | |
bfcd3a46 | 9083 | [DEVLINK_ATTR_PORT_SPLIT_COUNT] = { .type = NLA_U32 }, |
bf797471 JP |
9084 | [DEVLINK_ATTR_SB_INDEX] = { .type = NLA_U32 }, |
9085 | [DEVLINK_ATTR_SB_POOL_INDEX] = { .type = NLA_U16 }, | |
9086 | [DEVLINK_ATTR_SB_POOL_TYPE] = { .type = NLA_U8 }, | |
9087 | [DEVLINK_ATTR_SB_POOL_SIZE] = { .type = NLA_U32 }, | |
9088 | [DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE] = { .type = NLA_U8 }, | |
9089 | [DEVLINK_ATTR_SB_THRESHOLD] = { .type = NLA_U32 }, | |
9090 | [DEVLINK_ATTR_SB_TC_INDEX] = { .type = NLA_U16 }, | |
ba356c90 PP |
9091 | [DEVLINK_ATTR_ESWITCH_MODE] = NLA_POLICY_RANGE(NLA_U16, DEVLINK_ESWITCH_MODE_LEGACY, |
9092 | DEVLINK_ESWITCH_MODE_SWITCHDEV), | |
59bfde01 | 9093 | [DEVLINK_ATTR_ESWITCH_INLINE_MODE] = { .type = NLA_U8 }, |
f43e9b06 | 9094 | [DEVLINK_ATTR_ESWITCH_ENCAP_MODE] = { .type = NLA_U8 }, |
1555d204 AS |
9095 | [DEVLINK_ATTR_DPIPE_TABLE_NAME] = { .type = NLA_NUL_STRING }, |
9096 | [DEVLINK_ATTR_DPIPE_TABLE_COUNTERS_ENABLED] = { .type = NLA_U8 }, | |
d9f9b9a4 AS |
9097 | [DEVLINK_ATTR_RESOURCE_ID] = { .type = NLA_U64}, |
9098 | [DEVLINK_ATTR_RESOURCE_SIZE] = { .type = NLA_U64}, | |
e3b7ca18 MS |
9099 | [DEVLINK_ATTR_PARAM_NAME] = { .type = NLA_NUL_STRING }, |
9100 | [DEVLINK_ATTR_PARAM_TYPE] = { .type = NLA_U8 }, | |
9101 | [DEVLINK_ATTR_PARAM_VALUE_CMODE] = { .type = NLA_U8 }, | |
d8db7ea5 | 9102 | [DEVLINK_ATTR_REGION_NAME] = { .type = NLA_NUL_STRING }, |
866319bb | 9103 | [DEVLINK_ATTR_REGION_SNAPSHOT_ID] = { .type = NLA_U32 }, |
ff3b63b8 JK |
9104 | [DEVLINK_ATTR_REGION_CHUNK_ADDR] = { .type = NLA_U64 }, |
9105 | [DEVLINK_ATTR_REGION_CHUNK_LEN] = { .type = NLA_U64 }, | |
7afe335a | 9106 | [DEVLINK_ATTR_HEALTH_REPORTER_NAME] = { .type = NLA_NUL_STRING }, |
a1e55ec0 EBE |
9107 | [DEVLINK_ATTR_HEALTH_REPORTER_GRACEFUL_PERIOD] = { .type = NLA_U64 }, |
9108 | [DEVLINK_ATTR_HEALTH_REPORTER_AUTO_RECOVER] = { .type = NLA_U8 }, | |
76726ccb JK |
9109 | [DEVLINK_ATTR_FLASH_UPDATE_FILE_NAME] = { .type = NLA_NUL_STRING }, |
9110 | [DEVLINK_ATTR_FLASH_UPDATE_COMPONENT] = { .type = NLA_NUL_STRING }, | |
5d5b4128 JK |
9111 | [DEVLINK_ATTR_FLASH_UPDATE_OVERWRITE_MASK] = |
9112 | NLA_POLICY_BITFIELD32(DEVLINK_SUPPORTED_FLASH_OVERWRITE_SECTIONS), | |
0f420b6c IS |
9113 | [DEVLINK_ATTR_TRAP_NAME] = { .type = NLA_NUL_STRING }, |
9114 | [DEVLINK_ATTR_TRAP_ACTION] = { .type = NLA_U8 }, | |
9115 | [DEVLINK_ATTR_TRAP_GROUP_NAME] = { .type = NLA_NUL_STRING }, | |
070c63f2 JP |
9116 | [DEVLINK_ATTR_NETNS_PID] = { .type = NLA_U32 }, |
9117 | [DEVLINK_ATTR_NETNS_FD] = { .type = NLA_U32 }, | |
9118 | [DEVLINK_ATTR_NETNS_ID] = { .type = NLA_U32 }, | |
48bb52c8 | 9119 | [DEVLINK_ATTR_HEALTH_REPORTER_AUTO_DUMP] = { .type = NLA_U8 }, |
1e8c6619 IS |
9120 | [DEVLINK_ATTR_TRAP_POLICER_ID] = { .type = NLA_U32 }, |
9121 | [DEVLINK_ATTR_TRAP_POLICER_RATE] = { .type = NLA_U64 }, | |
9122 | [DEVLINK_ATTR_TRAP_POLICER_BURST] = { .type = NLA_U64 }, | |
a1e8ae90 | 9123 | [DEVLINK_ATTR_PORT_FUNCTION] = { .type = NLA_NESTED }, |
ccdf0721 MS |
9124 | [DEVLINK_ATTR_RELOAD_ACTION] = NLA_POLICY_RANGE(NLA_U8, DEVLINK_RELOAD_ACTION_DRIVER_REINIT, |
9125 | DEVLINK_RELOAD_ACTION_MAX), | |
dc64cc7c | 9126 | [DEVLINK_ATTR_RELOAD_LIMITS] = NLA_POLICY_BITFIELD32(DEVLINK_RELOAD_LIMITS_VALID_MASK), |
cd76dcd6 PP |
9127 | [DEVLINK_ATTR_PORT_FLAVOUR] = { .type = NLA_U16 }, |
9128 | [DEVLINK_ATTR_PORT_PCI_PF_NUMBER] = { .type = NLA_U16 }, | |
9129 | [DEVLINK_ATTR_PORT_PCI_SF_NUMBER] = { .type = NLA_U32 }, | |
9130 | [DEVLINK_ATTR_PORT_CONTROLLER_NUMBER] = { .type = NLA_U32 }, | |
4677efc4 | 9131 | [DEVLINK_ATTR_RATE_TYPE] = { .type = NLA_U16 }, |
1897db2e DL |
9132 | [DEVLINK_ATTR_RATE_TX_SHARE] = { .type = NLA_U64 }, |
9133 | [DEVLINK_ATTR_RATE_TX_MAX] = { .type = NLA_U64 }, | |
a8ecb93e | 9134 | [DEVLINK_ATTR_RATE_NODE_NAME] = { .type = NLA_NUL_STRING }, |
d7555984 | 9135 | [DEVLINK_ATTR_RATE_PARENT_NODE_NAME] = { .type = NLA_NUL_STRING }, |
c246f9b5 | 9136 | [DEVLINK_ATTR_LINECARD_INDEX] = { .type = NLA_U32 }, |
fcdc8ce2 | 9137 | [DEVLINK_ATTR_LINECARD_TYPE] = { .type = NLA_NUL_STRING }, |
08f588fa | 9138 | [DEVLINK_ATTR_SELFTESTS] = { .type = NLA_NESTED }, |
bfcd3a46 JP |
9139 | }; |
9140 | ||
66a9b928 | 9141 | static const struct genl_small_ops devlink_nl_ops[] = { |
bfcd3a46 JP |
9142 | { |
9143 | .cmd = DEVLINK_CMD_GET, | |
ef6243ac | 9144 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bfcd3a46 JP |
9145 | .doit = devlink_nl_cmd_get_doit, |
9146 | .dumpit = devlink_nl_cmd_get_dumpit, | |
bfcd3a46 JP |
9147 | /* can be retrieved by unprivileged users */ |
9148 | }, | |
9149 | { | |
9150 | .cmd = DEVLINK_CMD_PORT_GET, | |
ef6243ac | 9151 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bfcd3a46 JP |
9152 | .doit = devlink_nl_cmd_port_get_doit, |
9153 | .dumpit = devlink_nl_cmd_port_get_dumpit, | |
bfcd3a46 JP |
9154 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, |
9155 | /* can be retrieved by unprivileged users */ | |
9156 | }, | |
9157 | { | |
9158 | .cmd = DEVLINK_CMD_PORT_SET, | |
ef6243ac | 9159 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bfcd3a46 | 9160 | .doit = devlink_nl_cmd_port_set_doit, |
bfcd3a46 JP |
9161 | .flags = GENL_ADMIN_PERM, |
9162 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, | |
9163 | }, | |
4677efc4 DL |
9164 | { |
9165 | .cmd = DEVLINK_CMD_RATE_GET, | |
9166 | .doit = devlink_nl_cmd_rate_get_doit, | |
9167 | .dumpit = devlink_nl_cmd_rate_get_dumpit, | |
9168 | .internal_flags = DEVLINK_NL_FLAG_NEED_RATE, | |
9169 | /* can be retrieved by unprivileged users */ | |
9170 | }, | |
1897db2e DL |
9171 | { |
9172 | .cmd = DEVLINK_CMD_RATE_SET, | |
9173 | .doit = devlink_nl_cmd_rate_set_doit, | |
9174 | .flags = GENL_ADMIN_PERM, | |
9175 | .internal_flags = DEVLINK_NL_FLAG_NEED_RATE, | |
9176 | }, | |
a8ecb93e DL |
9177 | { |
9178 | .cmd = DEVLINK_CMD_RATE_NEW, | |
9179 | .doit = devlink_nl_cmd_rate_new_doit, | |
9180 | .flags = GENL_ADMIN_PERM, | |
9181 | }, | |
9182 | { | |
9183 | .cmd = DEVLINK_CMD_RATE_DEL, | |
9184 | .doit = devlink_nl_cmd_rate_del_doit, | |
9185 | .flags = GENL_ADMIN_PERM, | |
9186 | .internal_flags = DEVLINK_NL_FLAG_NEED_RATE_NODE, | |
9187 | }, | |
bfcd3a46 JP |
9188 | { |
9189 | .cmd = DEVLINK_CMD_PORT_SPLIT, | |
ef6243ac | 9190 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bfcd3a46 | 9191 | .doit = devlink_nl_cmd_port_split_doit, |
bfcd3a46 | 9192 | .flags = GENL_ADMIN_PERM, |
706217c1 | 9193 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, |
bfcd3a46 JP |
9194 | }, |
9195 | { | |
9196 | .cmd = DEVLINK_CMD_PORT_UNSPLIT, | |
ef6243ac | 9197 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bfcd3a46 | 9198 | .doit = devlink_nl_cmd_port_unsplit_doit, |
bfcd3a46 | 9199 | .flags = GENL_ADMIN_PERM, |
706217c1 | 9200 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, |
bfcd3a46 | 9201 | }, |
cd76dcd6 PP |
9202 | { |
9203 | .cmd = DEVLINK_CMD_PORT_NEW, | |
9204 | .doit = devlink_nl_cmd_port_new_doit, | |
9205 | .flags = GENL_ADMIN_PERM, | |
cd76dcd6 PP |
9206 | }, |
9207 | { | |
9208 | .cmd = DEVLINK_CMD_PORT_DEL, | |
9209 | .doit = devlink_nl_cmd_port_del_doit, | |
9210 | .flags = GENL_ADMIN_PERM, | |
cd76dcd6 | 9211 | }, |
c246f9b5 JP |
9212 | { |
9213 | .cmd = DEVLINK_CMD_LINECARD_GET, | |
9214 | .doit = devlink_nl_cmd_linecard_get_doit, | |
9215 | .dumpit = devlink_nl_cmd_linecard_get_dumpit, | |
9216 | .internal_flags = DEVLINK_NL_FLAG_NEED_LINECARD, | |
9217 | /* can be retrieved by unprivileged users */ | |
9218 | }, | |
fcdc8ce2 JP |
9219 | { |
9220 | .cmd = DEVLINK_CMD_LINECARD_SET, | |
9221 | .doit = devlink_nl_cmd_linecard_set_doit, | |
9222 | .flags = GENL_ADMIN_PERM, | |
9223 | .internal_flags = DEVLINK_NL_FLAG_NEED_LINECARD, | |
9224 | }, | |
bf797471 JP |
9225 | { |
9226 | .cmd = DEVLINK_CMD_SB_GET, | |
ef6243ac | 9227 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bf797471 JP |
9228 | .doit = devlink_nl_cmd_sb_get_doit, |
9229 | .dumpit = devlink_nl_cmd_sb_get_dumpit, | |
bf797471 JP |
9230 | /* can be retrieved by unprivileged users */ |
9231 | }, | |
9232 | { | |
9233 | .cmd = DEVLINK_CMD_SB_POOL_GET, | |
ef6243ac | 9234 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bf797471 JP |
9235 | .doit = devlink_nl_cmd_sb_pool_get_doit, |
9236 | .dumpit = devlink_nl_cmd_sb_pool_get_dumpit, | |
bf797471 JP |
9237 | /* can be retrieved by unprivileged users */ |
9238 | }, | |
9239 | { | |
9240 | .cmd = DEVLINK_CMD_SB_POOL_SET, | |
ef6243ac | 9241 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bf797471 | 9242 | .doit = devlink_nl_cmd_sb_pool_set_doit, |
bf797471 | 9243 | .flags = GENL_ADMIN_PERM, |
bf797471 JP |
9244 | }, |
9245 | { | |
9246 | .cmd = DEVLINK_CMD_SB_PORT_POOL_GET, | |
ef6243ac | 9247 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bf797471 JP |
9248 | .doit = devlink_nl_cmd_sb_port_pool_get_doit, |
9249 | .dumpit = devlink_nl_cmd_sb_port_pool_get_dumpit, | |
637989b5 | 9250 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, |
bf797471 JP |
9251 | /* can be retrieved by unprivileged users */ |
9252 | }, | |
9253 | { | |
9254 | .cmd = DEVLINK_CMD_SB_PORT_POOL_SET, | |
ef6243ac | 9255 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bf797471 | 9256 | .doit = devlink_nl_cmd_sb_port_pool_set_doit, |
bf797471 | 9257 | .flags = GENL_ADMIN_PERM, |
637989b5 | 9258 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, |
bf797471 JP |
9259 | }, |
9260 | { | |
9261 | .cmd = DEVLINK_CMD_SB_TC_POOL_BIND_GET, | |
ef6243ac | 9262 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bf797471 JP |
9263 | .doit = devlink_nl_cmd_sb_tc_pool_bind_get_doit, |
9264 | .dumpit = devlink_nl_cmd_sb_tc_pool_bind_get_dumpit, | |
637989b5 | 9265 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, |
bf797471 JP |
9266 | /* can be retrieved by unprivileged users */ |
9267 | }, | |
9268 | { | |
9269 | .cmd = DEVLINK_CMD_SB_TC_POOL_BIND_SET, | |
ef6243ac | 9270 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bf797471 | 9271 | .doit = devlink_nl_cmd_sb_tc_pool_bind_set_doit, |
bf797471 | 9272 | .flags = GENL_ADMIN_PERM, |
637989b5 | 9273 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, |
bf797471 | 9274 | }, |
df38dafd JP |
9275 | { |
9276 | .cmd = DEVLINK_CMD_SB_OCC_SNAPSHOT, | |
ef6243ac | 9277 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
df38dafd | 9278 | .doit = devlink_nl_cmd_sb_occ_snapshot_doit, |
df38dafd | 9279 | .flags = GENL_ADMIN_PERM, |
df38dafd JP |
9280 | }, |
9281 | { | |
9282 | .cmd = DEVLINK_CMD_SB_OCC_MAX_CLEAR, | |
ef6243ac | 9283 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
df38dafd | 9284 | .doit = devlink_nl_cmd_sb_occ_max_clear_doit, |
df38dafd | 9285 | .flags = GENL_ADMIN_PERM, |
df38dafd | 9286 | }, |
08f4b591 | 9287 | { |
adf200f3 | 9288 | .cmd = DEVLINK_CMD_ESWITCH_GET, |
ef6243ac | 9289 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
adf200f3 | 9290 | .doit = devlink_nl_cmd_eswitch_get_doit, |
08f4b591 | 9291 | .flags = GENL_ADMIN_PERM, |
08f4b591 OG |
9292 | }, |
9293 | { | |
adf200f3 | 9294 | .cmd = DEVLINK_CMD_ESWITCH_SET, |
ef6243ac | 9295 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
adf200f3 | 9296 | .doit = devlink_nl_cmd_eswitch_set_doit, |
08f4b591 | 9297 | .flags = GENL_ADMIN_PERM, |
08f4b591 | 9298 | }, |
1555d204 AS |
9299 | { |
9300 | .cmd = DEVLINK_CMD_DPIPE_TABLE_GET, | |
ef6243ac | 9301 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
1555d204 | 9302 | .doit = devlink_nl_cmd_dpipe_table_get, |
67ae686b | 9303 | /* can be retrieved by unprivileged users */ |
1555d204 AS |
9304 | }, |
9305 | { | |
9306 | .cmd = DEVLINK_CMD_DPIPE_ENTRIES_GET, | |
ef6243ac | 9307 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
1555d204 | 9308 | .doit = devlink_nl_cmd_dpipe_entries_get, |
67ae686b | 9309 | /* can be retrieved by unprivileged users */ |
1555d204 AS |
9310 | }, |
9311 | { | |
9312 | .cmd = DEVLINK_CMD_DPIPE_HEADERS_GET, | |
ef6243ac | 9313 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
1555d204 | 9314 | .doit = devlink_nl_cmd_dpipe_headers_get, |
67ae686b | 9315 | /* can be retrieved by unprivileged users */ |
1555d204 AS |
9316 | }, |
9317 | { | |
9318 | .cmd = DEVLINK_CMD_DPIPE_TABLE_COUNTERS_SET, | |
ef6243ac | 9319 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
1555d204 | 9320 | .doit = devlink_nl_cmd_dpipe_table_counters_set, |
1555d204 | 9321 | .flags = GENL_ADMIN_PERM, |
1555d204 | 9322 | }, |
d9f9b9a4 AS |
9323 | { |
9324 | .cmd = DEVLINK_CMD_RESOURCE_SET, | |
ef6243ac | 9325 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
d9f9b9a4 | 9326 | .doit = devlink_nl_cmd_resource_set, |
d9f9b9a4 | 9327 | .flags = GENL_ADMIN_PERM, |
d9f9b9a4 AS |
9328 | }, |
9329 | { | |
9330 | .cmd = DEVLINK_CMD_RESOURCE_DUMP, | |
ef6243ac | 9331 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
d9f9b9a4 | 9332 | .doit = devlink_nl_cmd_resource_dump, |
67ae686b | 9333 | /* can be retrieved by unprivileged users */ |
d9f9b9a4 | 9334 | }, |
2d8dc5bb AS |
9335 | { |
9336 | .cmd = DEVLINK_CMD_RELOAD, | |
ef6243ac | 9337 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
2d8dc5bb | 9338 | .doit = devlink_nl_cmd_reload, |
2d8dc5bb | 9339 | .flags = GENL_ADMIN_PERM, |
2d8dc5bb | 9340 | }, |
45f05def MS |
9341 | { |
9342 | .cmd = DEVLINK_CMD_PARAM_GET, | |
ef6243ac | 9343 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
45f05def MS |
9344 | .doit = devlink_nl_cmd_param_get_doit, |
9345 | .dumpit = devlink_nl_cmd_param_get_dumpit, | |
45f05def MS |
9346 | /* can be retrieved by unprivileged users */ |
9347 | }, | |
e3b7ca18 MS |
9348 | { |
9349 | .cmd = DEVLINK_CMD_PARAM_SET, | |
ef6243ac | 9350 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
e3b7ca18 | 9351 | .doit = devlink_nl_cmd_param_set_doit, |
e3b7ca18 | 9352 | .flags = GENL_ADMIN_PERM, |
e3b7ca18 | 9353 | }, |
f4601dee VV |
9354 | { |
9355 | .cmd = DEVLINK_CMD_PORT_PARAM_GET, | |
ef6243ac | 9356 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
f4601dee VV |
9357 | .doit = devlink_nl_cmd_port_param_get_doit, |
9358 | .dumpit = devlink_nl_cmd_port_param_get_dumpit, | |
f4601dee VV |
9359 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, |
9360 | /* can be retrieved by unprivileged users */ | |
9361 | }, | |
9c54873b VV |
9362 | { |
9363 | .cmd = DEVLINK_CMD_PORT_PARAM_SET, | |
ef6243ac | 9364 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
9c54873b | 9365 | .doit = devlink_nl_cmd_port_param_set_doit, |
9c54873b VV |
9366 | .flags = GENL_ADMIN_PERM, |
9367 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, | |
9368 | }, | |
d8db7ea5 AV |
9369 | { |
9370 | .cmd = DEVLINK_CMD_REGION_GET, | |
ef6243ac | 9371 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
d8db7ea5 AV |
9372 | .doit = devlink_nl_cmd_region_get_doit, |
9373 | .dumpit = devlink_nl_cmd_region_get_dumpit, | |
d8db7ea5 | 9374 | .flags = GENL_ADMIN_PERM, |
d8db7ea5 | 9375 | }, |
b9a17abf JK |
9376 | { |
9377 | .cmd = DEVLINK_CMD_REGION_NEW, | |
9378 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, | |
9379 | .doit = devlink_nl_cmd_region_new, | |
9380 | .flags = GENL_ADMIN_PERM, | |
b9a17abf | 9381 | }, |
866319bb AV |
9382 | { |
9383 | .cmd = DEVLINK_CMD_REGION_DEL, | |
ef6243ac | 9384 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
866319bb | 9385 | .doit = devlink_nl_cmd_region_del, |
866319bb | 9386 | .flags = GENL_ADMIN_PERM, |
866319bb | 9387 | }, |
4e54795a AV |
9388 | { |
9389 | .cmd = DEVLINK_CMD_REGION_READ, | |
ee85da53 JP |
9390 | .validate = GENL_DONT_VALIDATE_STRICT | |
9391 | GENL_DONT_VALIDATE_DUMP_STRICT, | |
4e54795a | 9392 | .dumpit = devlink_nl_cmd_region_read_dumpit, |
4e54795a | 9393 | .flags = GENL_ADMIN_PERM, |
4e54795a | 9394 | }, |
f9cf2288 JK |
9395 | { |
9396 | .cmd = DEVLINK_CMD_INFO_GET, | |
ef6243ac | 9397 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
f9cf2288 JK |
9398 | .doit = devlink_nl_cmd_info_get_doit, |
9399 | .dumpit = devlink_nl_cmd_info_get_dumpit, | |
f9cf2288 JK |
9400 | /* can be retrieved by unprivileged users */ |
9401 | }, | |
7afe335a EBE |
9402 | { |
9403 | .cmd = DEVLINK_CMD_HEALTH_REPORTER_GET, | |
ef6243ac | 9404 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
7afe335a EBE |
9405 | .doit = devlink_nl_cmd_health_reporter_get_doit, |
9406 | .dumpit = devlink_nl_cmd_health_reporter_get_dumpit, | |
c90005b5 | 9407 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT, |
7afe335a EBE |
9408 | /* can be retrieved by unprivileged users */ |
9409 | }, | |
a1e55ec0 EBE |
9410 | { |
9411 | .cmd = DEVLINK_CMD_HEALTH_REPORTER_SET, | |
ef6243ac | 9412 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
a1e55ec0 | 9413 | .doit = devlink_nl_cmd_health_reporter_set_doit, |
a1e55ec0 | 9414 | .flags = GENL_ADMIN_PERM, |
c90005b5 | 9415 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT, |
a1e55ec0 | 9416 | }, |
20a0943a EBE |
9417 | { |
9418 | .cmd = DEVLINK_CMD_HEALTH_REPORTER_RECOVER, | |
ef6243ac | 9419 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
20a0943a | 9420 | .doit = devlink_nl_cmd_health_reporter_recover_doit, |
20a0943a | 9421 | .flags = GENL_ADMIN_PERM, |
c90005b5 | 9422 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT, |
20a0943a | 9423 | }, |
fca42a27 EBE |
9424 | { |
9425 | .cmd = DEVLINK_CMD_HEALTH_REPORTER_DIAGNOSE, | |
ef6243ac | 9426 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
fca42a27 | 9427 | .doit = devlink_nl_cmd_health_reporter_diagnose_doit, |
fca42a27 | 9428 | .flags = GENL_ADMIN_PERM, |
c90005b5 | 9429 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT, |
fca42a27 | 9430 | }, |
35455e23 EBE |
9431 | { |
9432 | .cmd = DEVLINK_CMD_HEALTH_REPORTER_DUMP_GET, | |
82a843de JP |
9433 | .validate = GENL_DONT_VALIDATE_STRICT | |
9434 | GENL_DONT_VALIDATE_DUMP_STRICT, | |
e44ef4e4 | 9435 | .dumpit = devlink_nl_cmd_health_reporter_dump_get_dumpit, |
35455e23 | 9436 | .flags = GENL_ADMIN_PERM, |
35455e23 EBE |
9437 | }, |
9438 | { | |
9439 | .cmd = DEVLINK_CMD_HEALTH_REPORTER_DUMP_CLEAR, | |
ef6243ac | 9440 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
35455e23 | 9441 | .doit = devlink_nl_cmd_health_reporter_dump_clear_doit, |
35455e23 | 9442 | .flags = GENL_ADMIN_PERM, |
c90005b5 | 9443 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT, |
35455e23 | 9444 | }, |
e2ce94dc JP |
9445 | { |
9446 | .cmd = DEVLINK_CMD_HEALTH_REPORTER_TEST, | |
9447 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, | |
9448 | .doit = devlink_nl_cmd_health_reporter_test_doit, | |
9449 | .flags = GENL_ADMIN_PERM, | |
c90005b5 | 9450 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT, |
e2ce94dc | 9451 | }, |
76726ccb JK |
9452 | { |
9453 | .cmd = DEVLINK_CMD_FLASH_UPDATE, | |
ef6243ac | 9454 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
76726ccb | 9455 | .doit = devlink_nl_cmd_flash_update, |
76726ccb | 9456 | .flags = GENL_ADMIN_PERM, |
76726ccb | 9457 | }, |
0f420b6c IS |
9458 | { |
9459 | .cmd = DEVLINK_CMD_TRAP_GET, | |
9460 | .doit = devlink_nl_cmd_trap_get_doit, | |
9461 | .dumpit = devlink_nl_cmd_trap_get_dumpit, | |
0f420b6c IS |
9462 | /* can be retrieved by unprivileged users */ |
9463 | }, | |
9464 | { | |
9465 | .cmd = DEVLINK_CMD_TRAP_SET, | |
9466 | .doit = devlink_nl_cmd_trap_set_doit, | |
9467 | .flags = GENL_ADMIN_PERM, | |
0f420b6c IS |
9468 | }, |
9469 | { | |
9470 | .cmd = DEVLINK_CMD_TRAP_GROUP_GET, | |
9471 | .doit = devlink_nl_cmd_trap_group_get_doit, | |
9472 | .dumpit = devlink_nl_cmd_trap_group_get_dumpit, | |
0f420b6c IS |
9473 | /* can be retrieved by unprivileged users */ |
9474 | }, | |
9475 | { | |
9476 | .cmd = DEVLINK_CMD_TRAP_GROUP_SET, | |
9477 | .doit = devlink_nl_cmd_trap_group_set_doit, | |
9478 | .flags = GENL_ADMIN_PERM, | |
0f420b6c | 9479 | }, |
1e8c6619 IS |
9480 | { |
9481 | .cmd = DEVLINK_CMD_TRAP_POLICER_GET, | |
9482 | .doit = devlink_nl_cmd_trap_policer_get_doit, | |
9483 | .dumpit = devlink_nl_cmd_trap_policer_get_dumpit, | |
1e8c6619 IS |
9484 | /* can be retrieved by unprivileged users */ |
9485 | }, | |
9486 | { | |
9487 | .cmd = DEVLINK_CMD_TRAP_POLICER_SET, | |
9488 | .doit = devlink_nl_cmd_trap_policer_set_doit, | |
9489 | .flags = GENL_ADMIN_PERM, | |
1e8c6619 | 9490 | }, |
08f588fa VG |
9491 | { |
9492 | .cmd = DEVLINK_CMD_SELFTESTS_GET, | |
9493 | .doit = devlink_nl_cmd_selftests_get_doit, | |
9494 | .dumpit = devlink_nl_cmd_selftests_get_dumpit | |
9495 | /* can be retrieved by unprivileged users */ | |
9496 | }, | |
9497 | { | |
9498 | .cmd = DEVLINK_CMD_SELFTESTS_RUN, | |
9499 | .doit = devlink_nl_cmd_selftests_run, | |
9500 | .flags = GENL_ADMIN_PERM, | |
9501 | }, | |
bfcd3a46 JP |
9502 | }; |
9503 | ||
56989f6d | 9504 | static struct genl_family devlink_nl_family __ro_after_init = { |
489111e5 JB |
9505 | .name = DEVLINK_GENL_NAME, |
9506 | .version = DEVLINK_GENL_VERSION, | |
9507 | .maxattr = DEVLINK_ATTR_MAX, | |
3b0f31f2 | 9508 | .policy = devlink_nl_policy, |
489111e5 | 9509 | .netnsok = true, |
09b27846 | 9510 | .parallel_ops = true, |
489111e5 JB |
9511 | .pre_doit = devlink_nl_pre_doit, |
9512 | .post_doit = devlink_nl_post_doit, | |
9513 | .module = THIS_MODULE, | |
66a9b928 JK |
9514 | .small_ops = devlink_nl_ops, |
9515 | .n_small_ops = ARRAY_SIZE(devlink_nl_ops), | |
489111e5 JB |
9516 | .mcgrps = devlink_nl_mcgrps, |
9517 | .n_mcgrps = ARRAY_SIZE(devlink_nl_mcgrps), | |
9518 | }; | |
9519 | ||
ccdf0721 MS |
9520 | static bool devlink_reload_actions_valid(const struct devlink_ops *ops) |
9521 | { | |
dc64cc7c MS |
9522 | const struct devlink_reload_combination *comb; |
9523 | int i; | |
9524 | ||
ccdf0721 MS |
9525 | if (!devlink_reload_supported(ops)) { |
9526 | if (WARN_ON(ops->reload_actions)) | |
9527 | return false; | |
9528 | return true; | |
9529 | } | |
9530 | ||
9531 | if (WARN_ON(!ops->reload_actions || | |
9532 | ops->reload_actions & BIT(DEVLINK_RELOAD_ACTION_UNSPEC) || | |
9533 | ops->reload_actions >= BIT(__DEVLINK_RELOAD_ACTION_MAX))) | |
9534 | return false; | |
dc64cc7c MS |
9535 | |
9536 | if (WARN_ON(ops->reload_limits & BIT(DEVLINK_RELOAD_LIMIT_UNSPEC) || | |
9537 | ops->reload_limits >= BIT(__DEVLINK_RELOAD_LIMIT_MAX))) | |
9538 | return false; | |
9539 | ||
9540 | for (i = 0; i < ARRAY_SIZE(devlink_reload_invalid_combinations); i++) { | |
9541 | comb = &devlink_reload_invalid_combinations[i]; | |
9542 | if (ops->reload_actions == BIT(comb->action) && | |
9543 | ops->reload_limits == BIT(comb->limit)) | |
9544 | return false; | |
9545 | } | |
ccdf0721 MS |
9546 | return true; |
9547 | } | |
9548 | ||
bd032e35 LR |
9549 | /** |
9550 | * devlink_set_features - Set devlink supported features | |
9551 | * | |
9552 | * @devlink: devlink | |
9553 | * @features: devlink support features | |
9554 | * | |
9555 | * This interface allows us to set reload ops separatelly from | |
9556 | * the devlink_alloc. | |
9557 | */ | |
9558 | void devlink_set_features(struct devlink *devlink, u64 features) | |
9559 | { | |
9560 | ASSERT_DEVLINK_NOT_REGISTERED(devlink); | |
9561 | ||
9562 | WARN_ON(features & DEVLINK_F_RELOAD && | |
9563 | !devlink_reload_supported(devlink->ops)); | |
9564 | devlink->features = features; | |
9565 | } | |
9566 | EXPORT_SYMBOL_GPL(devlink_set_features); | |
9567 | ||
bfcd3a46 | 9568 | /** |
26713455 LR |
9569 | * devlink_alloc_ns - Allocate new devlink instance resources |
9570 | * in specific namespace | |
bfcd3a46 JP |
9571 | * |
9572 | * @ops: ops | |
9573 | * @priv_size: size of user private data | |
26713455 | 9574 | * @net: net namespace |
919d13a7 | 9575 | * @dev: parent device |
bfcd3a46 JP |
9576 | * |
9577 | * Allocate new devlink instance resources, including devlink index | |
9578 | * and name. | |
9579 | */ | |
26713455 | 9580 | struct devlink *devlink_alloc_ns(const struct devlink_ops *ops, |
919d13a7 LR |
9581 | size_t priv_size, struct net *net, |
9582 | struct device *dev) | |
bfcd3a46 JP |
9583 | { |
9584 | struct devlink *devlink; | |
11a861d7 LR |
9585 | static u32 last_id; |
9586 | int ret; | |
bfcd3a46 | 9587 | |
919d13a7 | 9588 | WARN_ON(!ops || !dev); |
ccdf0721 MS |
9589 | if (!devlink_reload_actions_valid(ops)) |
9590 | return NULL; | |
9591 | ||
bfcd3a46 JP |
9592 | devlink = kzalloc(sizeof(*devlink) + priv_size, GFP_KERNEL); |
9593 | if (!devlink) | |
9594 | return NULL; | |
919d13a7 | 9595 | |
11a861d7 LR |
9596 | ret = xa_alloc_cyclic(&devlinks, &devlink->index, devlink, xa_limit_31b, |
9597 | &last_id, GFP_KERNEL); | |
9598 | if (ret < 0) { | |
9599 | kfree(devlink); | |
9600 | return NULL; | |
9601 | } | |
9602 | ||
919d13a7 | 9603 | devlink->dev = dev; |
bfcd3a46 | 9604 | devlink->ops = ops; |
12102436 | 9605 | xa_init_flags(&devlink->snapshot_ids, XA_FLAGS_ALLOC); |
26713455 | 9606 | write_pnet(&devlink->_net, net); |
bfcd3a46 | 9607 | INIT_LIST_HEAD(&devlink->port_list); |
4677efc4 | 9608 | INIT_LIST_HEAD(&devlink->rate_list); |
c246f9b5 | 9609 | INIT_LIST_HEAD(&devlink->linecard_list); |
bf797471 | 9610 | INIT_LIST_HEAD(&devlink->sb_list); |
1555d204 | 9611 | INIT_LIST_HEAD_RCU(&devlink->dpipe_table_list); |
d9f9b9a4 | 9612 | INIT_LIST_HEAD(&devlink->resource_list); |
eabaef18 | 9613 | INIT_LIST_HEAD(&devlink->param_list); |
b16ebe92 | 9614 | INIT_LIST_HEAD(&devlink->region_list); |
a0bdcc59 | 9615 | INIT_LIST_HEAD(&devlink->reporter_list); |
0f420b6c IS |
9616 | INIT_LIST_HEAD(&devlink->trap_list); |
9617 | INIT_LIST_HEAD(&devlink->trap_group_list); | |
1e8c6619 | 9618 | INIT_LIST_HEAD(&devlink->trap_policer_list); |
e26fde2f | 9619 | lockdep_register_key(&devlink->lock_key); |
2406e7e5 | 9620 | mutex_init(&devlink->lock); |
e26fde2f | 9621 | lockdep_set_class(&devlink->lock, &devlink->lock_key); |
b587bdaf | 9622 | mutex_init(&devlink->reporters_lock); |
c246f9b5 | 9623 | mutex_init(&devlink->linecards_lock); |
437ebfd9 LR |
9624 | refcount_set(&devlink->refcount, 1); |
9625 | init_completion(&devlink->comp); | |
9626 | ||
bfcd3a46 JP |
9627 | return devlink; |
9628 | } | |
26713455 | 9629 | EXPORT_SYMBOL_GPL(devlink_alloc_ns); |
bfcd3a46 | 9630 | |
cf530217 LR |
9631 | static void |
9632 | devlink_trap_policer_notify(struct devlink *devlink, | |
9633 | const struct devlink_trap_policer_item *policer_item, | |
9634 | enum devlink_command cmd); | |
9635 | static void | |
9636 | devlink_trap_group_notify(struct devlink *devlink, | |
9637 | const struct devlink_trap_group_item *group_item, | |
9638 | enum devlink_command cmd); | |
9639 | static void devlink_trap_notify(struct devlink *devlink, | |
9640 | const struct devlink_trap_item *trap_item, | |
9641 | enum devlink_command cmd); | |
9642 | ||
9643 | static void devlink_notify_register(struct devlink *devlink) | |
9644 | { | |
9645 | struct devlink_trap_policer_item *policer_item; | |
9646 | struct devlink_trap_group_item *group_item; | |
99ad92ef | 9647 | struct devlink_param_item *param_item; |
cf530217 LR |
9648 | struct devlink_trap_item *trap_item; |
9649 | struct devlink_port *devlink_port; | |
c246f9b5 | 9650 | struct devlink_linecard *linecard; |
ef91abfb LR |
9651 | struct devlink_rate *rate_node; |
9652 | struct devlink_region *region; | |
cf530217 LR |
9653 | |
9654 | devlink_notify(devlink, DEVLINK_CMD_NEW); | |
c246f9b5 JP |
9655 | list_for_each_entry(linecard, &devlink->linecard_list, list) |
9656 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
9657 | ||
cf530217 LR |
9658 | list_for_each_entry(devlink_port, &devlink->port_list, list) |
9659 | devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_NEW); | |
9660 | ||
9661 | list_for_each_entry(policer_item, &devlink->trap_policer_list, list) | |
9662 | devlink_trap_policer_notify(devlink, policer_item, | |
9663 | DEVLINK_CMD_TRAP_POLICER_NEW); | |
9664 | ||
9665 | list_for_each_entry(group_item, &devlink->trap_group_list, list) | |
9666 | devlink_trap_group_notify(devlink, group_item, | |
9667 | DEVLINK_CMD_TRAP_GROUP_NEW); | |
9668 | ||
9669 | list_for_each_entry(trap_item, &devlink->trap_list, list) | |
9670 | devlink_trap_notify(devlink, trap_item, DEVLINK_CMD_TRAP_NEW); | |
9671 | ||
ef91abfb LR |
9672 | list_for_each_entry(rate_node, &devlink->rate_list, list) |
9673 | devlink_rate_notify(rate_node, DEVLINK_CMD_RATE_NEW); | |
9674 | ||
9675 | list_for_each_entry(region, &devlink->region_list, list) | |
9676 | devlink_nl_region_notify(region, NULL, DEVLINK_CMD_REGION_NEW); | |
9677 | ||
99ad92ef LR |
9678 | list_for_each_entry(param_item, &devlink->param_list, list) |
9679 | devlink_param_notify(devlink, 0, param_item, | |
9680 | DEVLINK_CMD_PARAM_NEW); | |
cf530217 LR |
9681 | } |
9682 | ||
9683 | static void devlink_notify_unregister(struct devlink *devlink) | |
9684 | { | |
9685 | struct devlink_trap_policer_item *policer_item; | |
9686 | struct devlink_trap_group_item *group_item; | |
99ad92ef | 9687 | struct devlink_param_item *param_item; |
cf530217 LR |
9688 | struct devlink_trap_item *trap_item; |
9689 | struct devlink_port *devlink_port; | |
ef91abfb LR |
9690 | struct devlink_rate *rate_node; |
9691 | struct devlink_region *region; | |
cf530217 | 9692 | |
99ad92ef LR |
9693 | list_for_each_entry_reverse(param_item, &devlink->param_list, list) |
9694 | devlink_param_notify(devlink, 0, param_item, | |
9695 | DEVLINK_CMD_PARAM_DEL); | |
cf530217 | 9696 | |
ef91abfb LR |
9697 | list_for_each_entry_reverse(region, &devlink->region_list, list) |
9698 | devlink_nl_region_notify(region, NULL, DEVLINK_CMD_REGION_DEL); | |
9699 | ||
9700 | list_for_each_entry_reverse(rate_node, &devlink->rate_list, list) | |
9701 | devlink_rate_notify(rate_node, DEVLINK_CMD_RATE_DEL); | |
9702 | ||
cf530217 LR |
9703 | list_for_each_entry_reverse(trap_item, &devlink->trap_list, list) |
9704 | devlink_trap_notify(devlink, trap_item, DEVLINK_CMD_TRAP_DEL); | |
9705 | ||
9706 | list_for_each_entry_reverse(group_item, &devlink->trap_group_list, list) | |
9707 | devlink_trap_group_notify(devlink, group_item, | |
9708 | DEVLINK_CMD_TRAP_GROUP_DEL); | |
9709 | list_for_each_entry_reverse(policer_item, &devlink->trap_policer_list, | |
9710 | list) | |
9711 | devlink_trap_policer_notify(devlink, policer_item, | |
9712 | DEVLINK_CMD_TRAP_POLICER_DEL); | |
9713 | ||
9714 | list_for_each_entry_reverse(devlink_port, &devlink->port_list, list) | |
9715 | devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_DEL); | |
9716 | devlink_notify(devlink, DEVLINK_CMD_DEL); | |
9717 | } | |
9718 | ||
bfcd3a46 JP |
9719 | /** |
9720 | * devlink_register - Register devlink instance | |
9721 | * | |
9722 | * @devlink: devlink | |
9723 | */ | |
db4278c5 | 9724 | void devlink_register(struct devlink *devlink) |
bfcd3a46 | 9725 | { |
b88f7b12 LR |
9726 | ASSERT_DEVLINK_NOT_REGISTERED(devlink); |
9727 | /* Make sure that we are in .probe() routine */ | |
b88f7b12 | 9728 | |
11a861d7 | 9729 | xa_set_mark(&devlinks, devlink->index, DEVLINK_REGISTERED); |
cf530217 | 9730 | devlink_notify_register(devlink); |
bfcd3a46 JP |
9731 | } |
9732 | EXPORT_SYMBOL_GPL(devlink_register); | |
9733 | ||
9734 | /** | |
9735 | * devlink_unregister - Unregister devlink instance | |
9736 | * | |
9737 | * @devlink: devlink | |
9738 | */ | |
9739 | void devlink_unregister(struct devlink *devlink) | |
9740 | { | |
b88f7b12 LR |
9741 | ASSERT_DEVLINK_REGISTERED(devlink); |
9742 | /* Make sure that we are in .remove() routine */ | |
b88f7b12 | 9743 | |
c2368b19 | 9744 | xa_set_mark(&devlinks, devlink->index, DEVLINK_UNREGISTERING); |
437ebfd9 LR |
9745 | devlink_put(devlink); |
9746 | wait_for_completion(&devlink->comp); | |
9747 | ||
cf530217 | 9748 | devlink_notify_unregister(devlink); |
11a861d7 | 9749 | xa_clear_mark(&devlinks, devlink->index, DEVLINK_REGISTERED); |
c2368b19 | 9750 | xa_clear_mark(&devlinks, devlink->index, DEVLINK_UNREGISTERING); |
bfcd3a46 JP |
9751 | } |
9752 | EXPORT_SYMBOL_GPL(devlink_unregister); | |
9753 | ||
9754 | /** | |
9755 | * devlink_free - Free devlink instance resources | |
9756 | * | |
9757 | * @devlink: devlink | |
9758 | */ | |
9759 | void devlink_free(struct devlink *devlink) | |
9760 | { | |
b88f7b12 LR |
9761 | ASSERT_DEVLINK_NOT_REGISTERED(devlink); |
9762 | ||
c246f9b5 | 9763 | mutex_destroy(&devlink->linecards_lock); |
b587bdaf | 9764 | mutex_destroy(&devlink->reporters_lock); |
375cf8c6 | 9765 | mutex_destroy(&devlink->lock); |
e26fde2f | 9766 | lockdep_unregister_key(&devlink->lock_key); |
1e8c6619 | 9767 | WARN_ON(!list_empty(&devlink->trap_policer_list)); |
0f420b6c IS |
9768 | WARN_ON(!list_empty(&devlink->trap_group_list)); |
9769 | WARN_ON(!list_empty(&devlink->trap_list)); | |
b904aada PP |
9770 | WARN_ON(!list_empty(&devlink->reporter_list)); |
9771 | WARN_ON(!list_empty(&devlink->region_list)); | |
9772 | WARN_ON(!list_empty(&devlink->param_list)); | |
9773 | WARN_ON(!list_empty(&devlink->resource_list)); | |
9774 | WARN_ON(!list_empty(&devlink->dpipe_table_list)); | |
9775 | WARN_ON(!list_empty(&devlink->sb_list)); | |
4677efc4 | 9776 | WARN_ON(!list_empty(&devlink->rate_list)); |
c246f9b5 | 9777 | WARN_ON(!list_empty(&devlink->linecard_list)); |
b904aada PP |
9778 | WARN_ON(!list_empty(&devlink->port_list)); |
9779 | ||
12102436 | 9780 | xa_destroy(&devlink->snapshot_ids); |
11a861d7 | 9781 | xa_erase(&devlinks, devlink->index); |
12102436 | 9782 | |
bfcd3a46 JP |
9783 | kfree(devlink); |
9784 | } | |
9785 | EXPORT_SYMBOL_GPL(devlink_free); | |
9786 | ||
136bf27f JP |
9787 | static void devlink_port_type_warn(struct work_struct *work) |
9788 | { | |
9789 | WARN(true, "Type was not set for devlink port."); | |
9790 | } | |
9791 | ||
9792 | static bool devlink_port_type_should_warn(struct devlink_port *devlink_port) | |
9793 | { | |
9794 | /* Ignore CPU and DSA flavours. */ | |
9795 | return devlink_port->attrs.flavour != DEVLINK_PORT_FLAVOUR_CPU && | |
cf116634 AL |
9796 | devlink_port->attrs.flavour != DEVLINK_PORT_FLAVOUR_DSA && |
9797 | devlink_port->attrs.flavour != DEVLINK_PORT_FLAVOUR_UNUSED; | |
136bf27f JP |
9798 | } |
9799 | ||
4c582234 | 9800 | #define DEVLINK_PORT_TYPE_WARN_TIMEOUT (HZ * 3600) |
136bf27f JP |
9801 | |
9802 | static void devlink_port_type_warn_schedule(struct devlink_port *devlink_port) | |
9803 | { | |
9804 | if (!devlink_port_type_should_warn(devlink_port)) | |
9805 | return; | |
9806 | /* Schedule a work to WARN in case driver does not set port | |
9807 | * type within timeout. | |
9808 | */ | |
9809 | schedule_delayed_work(&devlink_port->type_warn_dw, | |
9810 | DEVLINK_PORT_TYPE_WARN_TIMEOUT); | |
9811 | } | |
9812 | ||
9813 | static void devlink_port_type_warn_cancel(struct devlink_port *devlink_port) | |
9814 | { | |
9815 | if (!devlink_port_type_should_warn(devlink_port)) | |
9816 | return; | |
9817 | cancel_delayed_work_sync(&devlink_port->type_warn_dw); | |
9818 | } | |
9819 | ||
1abfb265 JP |
9820 | /** |
9821 | * devl_port_register() - Register devlink port | |
9822 | * | |
9823 | * @devlink: devlink | |
9824 | * @devlink_port: devlink port | |
9825 | * @port_index: driver-specific numerical identifier of the port | |
9826 | * | |
9827 | * Register devlink port with provided port index. User can use | |
9828 | * any indexing, even hw-related one. devlink_port structure | |
9829 | * is convenient to be embedded inside user driver private structure. | |
9830 | * Note that the caller should take care of zeroing the devlink_port | |
9831 | * structure. | |
9832 | */ | |
2cb7b489 JK |
9833 | int devl_port_register(struct devlink *devlink, |
9834 | struct devlink_port *devlink_port, | |
9835 | unsigned int port_index) | |
9836 | { | |
7715023a | 9837 | devl_assert_locked(devlink); |
2cb7b489 JK |
9838 | |
9839 | if (devlink_port_index_exists(devlink, port_index)) | |
9840 | return -EEXIST; | |
9841 | ||
9842 | WARN_ON(devlink_port->devlink); | |
9843 | devlink_port->devlink = devlink; | |
9844 | devlink_port->index = port_index; | |
9845 | spin_lock_init(&devlink_port->type_lock); | |
9846 | INIT_LIST_HEAD(&devlink_port->reporter_list); | |
9847 | mutex_init(&devlink_port->reporters_lock); | |
9848 | list_add_tail(&devlink_port->list, &devlink->port_list); | |
9849 | INIT_LIST_HEAD(&devlink_port->param_list); | |
9850 | INIT_LIST_HEAD(&devlink_port->region_list); | |
9851 | ||
9852 | INIT_DELAYED_WORK(&devlink_port->type_warn_dw, &devlink_port_type_warn); | |
9853 | devlink_port_type_warn_schedule(devlink_port); | |
9854 | devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_NEW); | |
9855 | return 0; | |
9856 | } | |
9857 | EXPORT_SYMBOL_GPL(devl_port_register); | |
9858 | ||
bfcd3a46 JP |
9859 | /** |
9860 | * devlink_port_register - Register devlink port | |
9861 | * | |
9862 | * @devlink: devlink | |
9863 | * @devlink_port: devlink port | |
eeaadd82 | 9864 | * @port_index: driver-specific numerical identifier of the port |
bfcd3a46 JP |
9865 | * |
9866 | * Register devlink port with provided port index. User can use | |
9867 | * any indexing, even hw-related one. devlink_port structure | |
9868 | * is convenient to be embedded inside user driver private structure. | |
9869 | * Note that the caller should take care of zeroing the devlink_port | |
9870 | * structure. | |
1abfb265 JP |
9871 | * |
9872 | * Context: Takes and release devlink->lock <mutex>. | |
bfcd3a46 JP |
9873 | */ |
9874 | int devlink_port_register(struct devlink *devlink, | |
9875 | struct devlink_port *devlink_port, | |
9876 | unsigned int port_index) | |
9877 | { | |
2cb7b489 | 9878 | int err; |
d7907a2b | 9879 | |
7715023a | 9880 | devl_lock(devlink); |
2cb7b489 | 9881 | err = devl_port_register(devlink, devlink_port, port_index); |
7715023a | 9882 | devl_unlock(devlink); |
2cb7b489 | 9883 | return err; |
bfcd3a46 JP |
9884 | } |
9885 | EXPORT_SYMBOL_GPL(devlink_port_register); | |
9886 | ||
1abfb265 JP |
9887 | /** |
9888 | * devl_port_unregister() - Unregister devlink port | |
9889 | * | |
9890 | * @devlink_port: devlink port | |
9891 | */ | |
2cb7b489 JK |
9892 | void devl_port_unregister(struct devlink_port *devlink_port) |
9893 | { | |
9894 | lockdep_assert_held(&devlink_port->devlink->lock); | |
9895 | ||
9896 | devlink_port_type_warn_cancel(devlink_port); | |
9897 | devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_DEL); | |
9898 | list_del(&devlink_port->list); | |
9899 | WARN_ON(!list_empty(&devlink_port->reporter_list)); | |
9900 | WARN_ON(!list_empty(&devlink_port->region_list)); | |
9901 | mutex_destroy(&devlink_port->reporters_lock); | |
9902 | } | |
9903 | EXPORT_SYMBOL_GPL(devl_port_unregister); | |
9904 | ||
bfcd3a46 JP |
9905 | /** |
9906 | * devlink_port_unregister - Unregister devlink port | |
9907 | * | |
9908 | * @devlink_port: devlink port | |
1abfb265 JP |
9909 | * |
9910 | * Context: Takes and release devlink->lock <mutex>. | |
bfcd3a46 JP |
9911 | */ |
9912 | void devlink_port_unregister(struct devlink_port *devlink_port) | |
9913 | { | |
2406e7e5 AS |
9914 | struct devlink *devlink = devlink_port->devlink; |
9915 | ||
7715023a | 9916 | devl_lock(devlink); |
2cb7b489 | 9917 | devl_port_unregister(devlink_port); |
7715023a | 9918 | devl_unlock(devlink); |
bfcd3a46 JP |
9919 | } |
9920 | EXPORT_SYMBOL_GPL(devlink_port_unregister); | |
9921 | ||
9922 | static void __devlink_port_type_set(struct devlink_port *devlink_port, | |
9923 | enum devlink_port_type type, | |
9924 | void *type_dev) | |
9925 | { | |
d7907a2b | 9926 | if (WARN_ON(!devlink_port->devlink)) |
2b239e70 | 9927 | return; |
136bf27f | 9928 | devlink_port_type_warn_cancel(devlink_port); |
0f420b6c | 9929 | spin_lock_bh(&devlink_port->type_lock); |
bfcd3a46 JP |
9930 | devlink_port->type = type; |
9931 | devlink_port->type_dev = type_dev; | |
0f420b6c | 9932 | spin_unlock_bh(&devlink_port->type_lock); |
bfcd3a46 JP |
9933 | devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_NEW); |
9934 | } | |
9935 | ||
3ea87ca7 JK |
9936 | static void devlink_port_type_netdev_checks(struct devlink_port *devlink_port, |
9937 | struct net_device *netdev) | |
bfcd3a46 | 9938 | { |
119c0b57 JP |
9939 | const struct net_device_ops *ops = netdev->netdev_ops; |
9940 | ||
746364f2 JP |
9941 | /* If driver registers devlink port, it should set devlink port |
9942 | * attributes accordingly so the compat functions are called | |
9943 | * and the original ops are not used. | |
9944 | */ | |
119c0b57 | 9945 | if (ops->ndo_get_phys_port_name) { |
746364f2 JP |
9946 | /* Some drivers use the same set of ndos for netdevs |
9947 | * that have devlink_port registered and also for | |
9948 | * those who don't. Make sure that ndo_get_phys_port_name | |
9949 | * returns -EOPNOTSUPP here in case it is defined. | |
9950 | * Warn if not. | |
9951 | */ | |
746364f2 JP |
9952 | char name[IFNAMSIZ]; |
9953 | int err; | |
9954 | ||
9955 | err = ops->ndo_get_phys_port_name(netdev, name, sizeof(name)); | |
9956 | WARN_ON(err != -EOPNOTSUPP); | |
9957 | } | |
119c0b57 JP |
9958 | if (ops->ndo_get_port_parent_id) { |
9959 | /* Some drivers use the same set of ndos for netdevs | |
9960 | * that have devlink_port registered and also for | |
9961 | * those who don't. Make sure that ndo_get_port_parent_id | |
9962 | * returns -EOPNOTSUPP here in case it is defined. | |
9963 | * Warn if not. | |
9964 | */ | |
9965 | struct netdev_phys_item_id ppid; | |
9966 | int err; | |
9967 | ||
9968 | err = ops->ndo_get_port_parent_id(netdev, &ppid); | |
9969 | WARN_ON(err != -EOPNOTSUPP); | |
9970 | } | |
3ea87ca7 JK |
9971 | } |
9972 | ||
9973 | /** | |
9974 | * devlink_port_type_eth_set - Set port type to Ethernet | |
9975 | * | |
9976 | * @devlink_port: devlink port | |
9977 | * @netdev: related netdevice | |
9978 | */ | |
9979 | void devlink_port_type_eth_set(struct devlink_port *devlink_port, | |
9980 | struct net_device *netdev) | |
9981 | { | |
9982 | if (netdev) | |
9983 | devlink_port_type_netdev_checks(devlink_port, netdev); | |
9984 | else | |
9985 | dev_warn(devlink_port->devlink->dev, | |
9986 | "devlink port type for port %d set to Ethernet without a software interface reference, device type not supported by the kernel?\n", | |
9987 | devlink_port->index); | |
9988 | ||
773b1f38 | 9989 | __devlink_port_type_set(devlink_port, DEVLINK_PORT_TYPE_ETH, netdev); |
bfcd3a46 JP |
9990 | } |
9991 | EXPORT_SYMBOL_GPL(devlink_port_type_eth_set); | |
9992 | ||
9993 | /** | |
9994 | * devlink_port_type_ib_set - Set port type to InfiniBand | |
9995 | * | |
9996 | * @devlink_port: devlink port | |
9997 | * @ibdev: related IB device | |
9998 | */ | |
9999 | void devlink_port_type_ib_set(struct devlink_port *devlink_port, | |
10000 | struct ib_device *ibdev) | |
10001 | { | |
773b1f38 | 10002 | __devlink_port_type_set(devlink_port, DEVLINK_PORT_TYPE_IB, ibdev); |
bfcd3a46 JP |
10003 | } |
10004 | EXPORT_SYMBOL_GPL(devlink_port_type_ib_set); | |
10005 | ||
10006 | /** | |
10007 | * devlink_port_type_clear - Clear port type | |
10008 | * | |
10009 | * @devlink_port: devlink port | |
10010 | */ | |
10011 | void devlink_port_type_clear(struct devlink_port *devlink_port) | |
10012 | { | |
773b1f38 | 10013 | __devlink_port_type_set(devlink_port, DEVLINK_PORT_TYPE_NOTSET, NULL); |
136bf27f | 10014 | devlink_port_type_warn_schedule(devlink_port); |
bfcd3a46 JP |
10015 | } |
10016 | EXPORT_SYMBOL_GPL(devlink_port_type_clear); | |
10017 | ||
378ef01b | 10018 | static int __devlink_port_attrs_set(struct devlink_port *devlink_port, |
71ad8d55 | 10019 | enum devlink_port_flavour flavour) |
378ef01b PP |
10020 | { |
10021 | struct devlink_port_attrs *attrs = &devlink_port->attrs; | |
10022 | ||
10a429ba | 10023 | devlink_port->attrs_set = true; |
378ef01b | 10024 | attrs->flavour = flavour; |
71ad8d55 | 10025 | if (attrs->switch_id.id_len) { |
46737a19 | 10026 | devlink_port->switch_port = true; |
71ad8d55 DR |
10027 | if (WARN_ON(attrs->switch_id.id_len > MAX_PHYS_ITEM_ID_LEN)) |
10028 | attrs->switch_id.id_len = MAX_PHYS_ITEM_ID_LEN; | |
378ef01b | 10029 | } else { |
46737a19 | 10030 | devlink_port->switch_port = false; |
378ef01b PP |
10031 | } |
10032 | return 0; | |
10033 | } | |
10034 | ||
bfcd3a46 | 10035 | /** |
b9ffcbaf | 10036 | * devlink_port_attrs_set - Set port attributes |
bfcd3a46 JP |
10037 | * |
10038 | * @devlink_port: devlink port | |
71ad8d55 | 10039 | * @attrs: devlink port attrs |
bfcd3a46 | 10040 | */ |
b9ffcbaf | 10041 | void devlink_port_attrs_set(struct devlink_port *devlink_port, |
71ad8d55 | 10042 | struct devlink_port_attrs *attrs) |
bfcd3a46 | 10043 | { |
378ef01b | 10044 | int ret; |
b9ffcbaf | 10045 | |
d7907a2b | 10046 | if (WARN_ON(devlink_port->devlink)) |
9f73bd1c | 10047 | return; |
71ad8d55 DR |
10048 | devlink_port->attrs = *attrs; |
10049 | ret = __devlink_port_attrs_set(devlink_port, attrs->flavour); | |
378ef01b | 10050 | if (ret) |
45b86112 | 10051 | return; |
a0f49b54 | 10052 | WARN_ON(attrs->splittable && attrs->split); |
bfcd3a46 | 10053 | } |
b9ffcbaf | 10054 | EXPORT_SYMBOL_GPL(devlink_port_attrs_set); |
bfcd3a46 | 10055 | |
98fd2d65 PP |
10056 | /** |
10057 | * devlink_port_attrs_pci_pf_set - Set PCI PF port attributes | |
10058 | * | |
10059 | * @devlink_port: devlink port | |
3a2d9588 | 10060 | * @controller: associated controller number for the devlink port instance |
98fd2d65 | 10061 | * @pf: associated PF for the devlink port instance |
05b595e9 | 10062 | * @external: indicates if the port is for an external controller |
98fd2d65 | 10063 | */ |
3a2d9588 PP |
10064 | void devlink_port_attrs_pci_pf_set(struct devlink_port *devlink_port, u32 controller, |
10065 | u16 pf, bool external) | |
98fd2d65 PP |
10066 | { |
10067 | struct devlink_port_attrs *attrs = &devlink_port->attrs; | |
10068 | int ret; | |
10069 | ||
d7907a2b | 10070 | if (WARN_ON(devlink_port->devlink)) |
9f73bd1c | 10071 | return; |
98fd2d65 | 10072 | ret = __devlink_port_attrs_set(devlink_port, |
71ad8d55 | 10073 | DEVLINK_PORT_FLAVOUR_PCI_PF); |
98fd2d65 PP |
10074 | if (ret) |
10075 | return; | |
3a2d9588 | 10076 | attrs->pci_pf.controller = controller; |
98fd2d65 | 10077 | attrs->pci_pf.pf = pf; |
05b595e9 | 10078 | attrs->pci_pf.external = external; |
98fd2d65 PP |
10079 | } |
10080 | EXPORT_SYMBOL_GPL(devlink_port_attrs_pci_pf_set); | |
10081 | ||
e41b6bf3 PP |
10082 | /** |
10083 | * devlink_port_attrs_pci_vf_set - Set PCI VF port attributes | |
10084 | * | |
10085 | * @devlink_port: devlink port | |
3a2d9588 | 10086 | * @controller: associated controller number for the devlink port instance |
e41b6bf3 PP |
10087 | * @pf: associated PF for the devlink port instance |
10088 | * @vf: associated VF of a PF for the devlink port instance | |
05b595e9 | 10089 | * @external: indicates if the port is for an external controller |
e41b6bf3 | 10090 | */ |
3a2d9588 | 10091 | void devlink_port_attrs_pci_vf_set(struct devlink_port *devlink_port, u32 controller, |
05b595e9 | 10092 | u16 pf, u16 vf, bool external) |
e41b6bf3 PP |
10093 | { |
10094 | struct devlink_port_attrs *attrs = &devlink_port->attrs; | |
10095 | int ret; | |
10096 | ||
d7907a2b | 10097 | if (WARN_ON(devlink_port->devlink)) |
9f73bd1c | 10098 | return; |
e41b6bf3 | 10099 | ret = __devlink_port_attrs_set(devlink_port, |
71ad8d55 | 10100 | DEVLINK_PORT_FLAVOUR_PCI_VF); |
e41b6bf3 PP |
10101 | if (ret) |
10102 | return; | |
3a2d9588 | 10103 | attrs->pci_vf.controller = controller; |
e41b6bf3 PP |
10104 | attrs->pci_vf.pf = pf; |
10105 | attrs->pci_vf.vf = vf; | |
05b595e9 | 10106 | attrs->pci_vf.external = external; |
e41b6bf3 PP |
10107 | } |
10108 | EXPORT_SYMBOL_GPL(devlink_port_attrs_pci_vf_set); | |
10109 | ||
b8288837 PP |
10110 | /** |
10111 | * devlink_port_attrs_pci_sf_set - Set PCI SF port attributes | |
10112 | * | |
10113 | * @devlink_port: devlink port | |
10114 | * @controller: associated controller number for the devlink port instance | |
10115 | * @pf: associated PF for the devlink port instance | |
10116 | * @sf: associated SF of a PF for the devlink port instance | |
a1ab3e45 | 10117 | * @external: indicates if the port is for an external controller |
b8288837 PP |
10118 | */ |
10119 | void devlink_port_attrs_pci_sf_set(struct devlink_port *devlink_port, u32 controller, | |
a1ab3e45 | 10120 | u16 pf, u32 sf, bool external) |
b8288837 PP |
10121 | { |
10122 | struct devlink_port_attrs *attrs = &devlink_port->attrs; | |
10123 | int ret; | |
10124 | ||
d7907a2b | 10125 | if (WARN_ON(devlink_port->devlink)) |
b8288837 PP |
10126 | return; |
10127 | ret = __devlink_port_attrs_set(devlink_port, | |
10128 | DEVLINK_PORT_FLAVOUR_PCI_SF); | |
10129 | if (ret) | |
10130 | return; | |
10131 | attrs->pci_sf.controller = controller; | |
10132 | attrs->pci_sf.pf = pf; | |
10133 | attrs->pci_sf.sf = sf; | |
a1ab3e45 | 10134 | attrs->pci_sf.external = external; |
b8288837 PP |
10135 | } |
10136 | EXPORT_SYMBOL_GPL(devlink_port_attrs_pci_sf_set); | |
10137 | ||
4677efc4 | 10138 | /** |
8879b32a | 10139 | * devl_rate_leaf_create - create devlink rate leaf |
4677efc4 DL |
10140 | * @devlink_port: devlink port object to create rate object on |
10141 | * @priv: driver private data | |
10142 | * | |
10143 | * Create devlink rate object of type leaf on provided @devlink_port. | |
4677efc4 | 10144 | */ |
8879b32a | 10145 | int devl_rate_leaf_create(struct devlink_port *devlink_port, void *priv) |
4677efc4 DL |
10146 | { |
10147 | struct devlink *devlink = devlink_port->devlink; | |
10148 | struct devlink_rate *devlink_rate; | |
10149 | ||
8879b32a JK |
10150 | devl_assert_locked(devlink_port->devlink); |
10151 | ||
10152 | if (WARN_ON(devlink_port->devlink_rate)) | |
10153 | return -EBUSY; | |
10154 | ||
4677efc4 DL |
10155 | devlink_rate = kzalloc(sizeof(*devlink_rate), GFP_KERNEL); |
10156 | if (!devlink_rate) | |
10157 | return -ENOMEM; | |
10158 | ||
4677efc4 DL |
10159 | devlink_rate->type = DEVLINK_RATE_TYPE_LEAF; |
10160 | devlink_rate->devlink = devlink; | |
10161 | devlink_rate->devlink_port = devlink_port; | |
10162 | devlink_rate->priv = priv; | |
10163 | list_add_tail(&devlink_rate->list, &devlink->rate_list); | |
10164 | devlink_port->devlink_rate = devlink_rate; | |
10165 | devlink_rate_notify(devlink_rate, DEVLINK_CMD_RATE_NEW); | |
4677efc4 DL |
10166 | |
10167 | return 0; | |
10168 | } | |
8879b32a JK |
10169 | EXPORT_SYMBOL_GPL(devl_rate_leaf_create); |
10170 | ||
df539fc6 MS |
10171 | /** |
10172 | * devl_rate_leaf_destroy - destroy devlink rate leaf | |
10173 | * | |
10174 | * @devlink_port: devlink port linked to the rate object | |
10175 | * | |
10176 | * Destroy the devlink rate object of type leaf on provided @devlink_port. | |
10177 | */ | |
8879b32a JK |
10178 | void devl_rate_leaf_destroy(struct devlink_port *devlink_port) |
10179 | { | |
10180 | struct devlink_rate *devlink_rate = devlink_port->devlink_rate; | |
10181 | ||
10182 | devl_assert_locked(devlink_port->devlink); | |
10183 | if (!devlink_rate) | |
10184 | return; | |
10185 | ||
10186 | devlink_rate_notify(devlink_rate, DEVLINK_CMD_RATE_DEL); | |
10187 | if (devlink_rate->parent) | |
10188 | refcount_dec(&devlink_rate->parent->refcnt); | |
10189 | list_del(&devlink_rate->list); | |
10190 | devlink_port->devlink_rate = NULL; | |
10191 | kfree(devlink_rate); | |
10192 | } | |
10193 | EXPORT_SYMBOL_GPL(devl_rate_leaf_destroy); | |
10194 | ||
a8ecb93e | 10195 | /** |
8879b32a | 10196 | * devl_rate_nodes_destroy - destroy all devlink rate nodes on device |
a8ecb93e DL |
10197 | * @devlink: devlink instance |
10198 | * | |
d7555984 DL |
10199 | * Unset parent for all rate objects and destroy all rate nodes |
10200 | * on specified device. | |
a8ecb93e | 10201 | */ |
8879b32a | 10202 | void devl_rate_nodes_destroy(struct devlink *devlink) |
a8ecb93e DL |
10203 | { |
10204 | static struct devlink_rate *devlink_rate, *tmp; | |
10205 | const struct devlink_ops *ops = devlink->ops; | |
10206 | ||
8879b32a JK |
10207 | devl_assert_locked(devlink); |
10208 | ||
d7555984 DL |
10209 | list_for_each_entry(devlink_rate, &devlink->rate_list, list) { |
10210 | if (!devlink_rate->parent) | |
10211 | continue; | |
10212 | ||
10213 | refcount_dec(&devlink_rate->parent->refcnt); | |
10214 | if (devlink_rate_is_leaf(devlink_rate)) | |
10215 | ops->rate_leaf_parent_set(devlink_rate, NULL, devlink_rate->priv, | |
10216 | NULL, NULL); | |
10217 | else if (devlink_rate_is_node(devlink_rate)) | |
10218 | ops->rate_node_parent_set(devlink_rate, NULL, devlink_rate->priv, | |
10219 | NULL, NULL); | |
10220 | } | |
a8ecb93e DL |
10221 | list_for_each_entry_safe(devlink_rate, tmp, &devlink->rate_list, list) { |
10222 | if (devlink_rate_is_node(devlink_rate)) { | |
10223 | ops->rate_node_del(devlink_rate, devlink_rate->priv, NULL); | |
10224 | list_del(&devlink_rate->list); | |
10225 | kfree(devlink_rate->name); | |
10226 | kfree(devlink_rate); | |
10227 | } | |
10228 | } | |
8879b32a JK |
10229 | } |
10230 | EXPORT_SYMBOL_GPL(devl_rate_nodes_destroy); | |
10231 | ||
b8375859 JP |
10232 | /** |
10233 | * devlink_port_linecard_set - Link port with a linecard | |
10234 | * | |
10235 | * @devlink_port: devlink port | |
10236 | * @linecard: devlink linecard | |
10237 | */ | |
10238 | void devlink_port_linecard_set(struct devlink_port *devlink_port, | |
10239 | struct devlink_linecard *linecard) | |
10240 | { | |
10241 | if (WARN_ON(devlink_port->devlink)) | |
10242 | return; | |
10243 | devlink_port->linecard = linecard; | |
10244 | } | |
10245 | EXPORT_SYMBOL_GPL(devlink_port_linecard_set); | |
10246 | ||
af3836df JP |
10247 | static int __devlink_port_phys_port_name_get(struct devlink_port *devlink_port, |
10248 | char *name, size_t len) | |
08474c1a JP |
10249 | { |
10250 | struct devlink_port_attrs *attrs = &devlink_port->attrs; | |
10251 | int n = 0; | |
10252 | ||
10a429ba | 10253 | if (!devlink_port->attrs_set) |
08474c1a JP |
10254 | return -EOPNOTSUPP; |
10255 | ||
10256 | switch (attrs->flavour) { | |
10257 | case DEVLINK_PORT_FLAVOUR_PHYSICAL: | |
b8375859 JP |
10258 | if (devlink_port->linecard) |
10259 | n = snprintf(name, len, "l%u", | |
10260 | devlink_port->linecard->index); | |
10261 | if (n < len) | |
10262 | n += snprintf(name + n, len - n, "p%u", | |
10263 | attrs->phys.port_number); | |
f285f37c JP |
10264 | if (n < len && attrs->split) |
10265 | n += snprintf(name + n, len - n, "s%u", | |
10266 | attrs->phys.split_subport_number); | |
08474c1a JP |
10267 | break; |
10268 | case DEVLINK_PORT_FLAVOUR_CPU: | |
10269 | case DEVLINK_PORT_FLAVOUR_DSA: | |
cf116634 | 10270 | case DEVLINK_PORT_FLAVOUR_UNUSED: |
08474c1a JP |
10271 | /* As CPU and DSA ports do not have a netdevice associated |
10272 | * case should not ever happen. | |
10273 | */ | |
10274 | WARN_ON(1); | |
10275 | return -EINVAL; | |
98fd2d65 | 10276 | case DEVLINK_PORT_FLAVOUR_PCI_PF: |
66b17082 PP |
10277 | if (attrs->pci_pf.external) { |
10278 | n = snprintf(name, len, "c%u", attrs->pci_pf.controller); | |
10279 | if (n >= len) | |
10280 | return -EINVAL; | |
10281 | len -= n; | |
10282 | name += n; | |
10283 | } | |
98fd2d65 PP |
10284 | n = snprintf(name, len, "pf%u", attrs->pci_pf.pf); |
10285 | break; | |
e41b6bf3 | 10286 | case DEVLINK_PORT_FLAVOUR_PCI_VF: |
66b17082 PP |
10287 | if (attrs->pci_vf.external) { |
10288 | n = snprintf(name, len, "c%u", attrs->pci_vf.controller); | |
10289 | if (n >= len) | |
10290 | return -EINVAL; | |
10291 | len -= n; | |
10292 | name += n; | |
10293 | } | |
e41b6bf3 PP |
10294 | n = snprintf(name, len, "pf%uvf%u", |
10295 | attrs->pci_vf.pf, attrs->pci_vf.vf); | |
10296 | break; | |
b8288837 | 10297 | case DEVLINK_PORT_FLAVOUR_PCI_SF: |
a1ab3e45 PP |
10298 | if (attrs->pci_sf.external) { |
10299 | n = snprintf(name, len, "c%u", attrs->pci_sf.controller); | |
10300 | if (n >= len) | |
10301 | return -EINVAL; | |
10302 | len -= n; | |
10303 | name += n; | |
10304 | } | |
b8288837 PP |
10305 | n = snprintf(name, len, "pf%usf%u", attrs->pci_sf.pf, |
10306 | attrs->pci_sf.sf); | |
10307 | break; | |
149ea30f PP |
10308 | case DEVLINK_PORT_FLAVOUR_VIRTUAL: |
10309 | return -EOPNOTSUPP; | |
08474c1a JP |
10310 | } |
10311 | ||
10312 | if (n >= len) | |
10313 | return -EINVAL; | |
10314 | ||
10315 | return 0; | |
10316 | } | |
af3836df | 10317 | |
fcdc8ce2 JP |
10318 | static int devlink_linecard_types_init(struct devlink_linecard *linecard) |
10319 | { | |
10320 | struct devlink_linecard_type *linecard_type; | |
10321 | unsigned int count; | |
10322 | int i; | |
10323 | ||
10324 | count = linecard->ops->types_count(linecard, linecard->priv); | |
10325 | linecard->types = kmalloc_array(count, sizeof(*linecard_type), | |
10326 | GFP_KERNEL); | |
10327 | if (!linecard->types) | |
10328 | return -ENOMEM; | |
10329 | linecard->types_count = count; | |
10330 | ||
10331 | for (i = 0; i < count; i++) { | |
10332 | linecard_type = &linecard->types[i]; | |
10333 | linecard->ops->types_get(linecard, linecard->priv, i, | |
10334 | &linecard_type->type, | |
10335 | &linecard_type->priv); | |
10336 | } | |
10337 | return 0; | |
10338 | } | |
10339 | ||
10340 | static void devlink_linecard_types_fini(struct devlink_linecard *linecard) | |
10341 | { | |
10342 | kfree(linecard->types); | |
10343 | } | |
10344 | ||
c246f9b5 JP |
10345 | /** |
10346 | * devlink_linecard_create - Create devlink linecard | |
10347 | * | |
10348 | * @devlink: devlink | |
10349 | * @linecard_index: driver-specific numerical identifier of the linecard | |
fcdc8ce2 JP |
10350 | * @ops: linecards ops |
10351 | * @priv: user priv pointer | |
c246f9b5 JP |
10352 | * |
10353 | * Create devlink linecard instance with provided linecard index. | |
10354 | * Caller can use any indexing, even hw-related one. | |
fcdc8ce2 JP |
10355 | * |
10356 | * Return: Line card structure or an ERR_PTR() encoded error code. | |
c246f9b5 | 10357 | */ |
fcdc8ce2 JP |
10358 | struct devlink_linecard * |
10359 | devlink_linecard_create(struct devlink *devlink, unsigned int linecard_index, | |
10360 | const struct devlink_linecard_ops *ops, void *priv) | |
c246f9b5 JP |
10361 | { |
10362 | struct devlink_linecard *linecard; | |
fcdc8ce2 JP |
10363 | int err; |
10364 | ||
10365 | if (WARN_ON(!ops || !ops->provision || !ops->unprovision || | |
10366 | !ops->types_count || !ops->types_get)) | |
10367 | return ERR_PTR(-EINVAL); | |
c246f9b5 JP |
10368 | |
10369 | mutex_lock(&devlink->linecards_lock); | |
10370 | if (devlink_linecard_index_exists(devlink, linecard_index)) { | |
10371 | mutex_unlock(&devlink->linecards_lock); | |
10372 | return ERR_PTR(-EEXIST); | |
10373 | } | |
10374 | ||
10375 | linecard = kzalloc(sizeof(*linecard), GFP_KERNEL); | |
10376 | if (!linecard) { | |
10377 | mutex_unlock(&devlink->linecards_lock); | |
10378 | return ERR_PTR(-ENOMEM); | |
10379 | } | |
10380 | ||
10381 | linecard->devlink = devlink; | |
10382 | linecard->index = linecard_index; | |
fcdc8ce2 JP |
10383 | linecard->ops = ops; |
10384 | linecard->priv = priv; | |
10385 | linecard->state = DEVLINK_LINECARD_STATE_UNPROVISIONED; | |
10386 | mutex_init(&linecard->state_lock); | |
10387 | ||
10388 | err = devlink_linecard_types_init(linecard); | |
10389 | if (err) { | |
10390 | mutex_destroy(&linecard->state_lock); | |
10391 | kfree(linecard); | |
10392 | mutex_unlock(&devlink->linecards_lock); | |
10393 | return ERR_PTR(err); | |
10394 | } | |
10395 | ||
c246f9b5 JP |
10396 | list_add_tail(&linecard->list, &devlink->linecard_list); |
10397 | refcount_set(&linecard->refcount, 1); | |
10398 | mutex_unlock(&devlink->linecards_lock); | |
10399 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
10400 | return linecard; | |
10401 | } | |
10402 | EXPORT_SYMBOL_GPL(devlink_linecard_create); | |
10403 | ||
10404 | /** | |
10405 | * devlink_linecard_destroy - Destroy devlink linecard | |
10406 | * | |
10407 | * @linecard: devlink linecard | |
10408 | */ | |
10409 | void devlink_linecard_destroy(struct devlink_linecard *linecard) | |
10410 | { | |
10411 | struct devlink *devlink = linecard->devlink; | |
10412 | ||
10413 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_DEL); | |
10414 | mutex_lock(&devlink->linecards_lock); | |
10415 | list_del(&linecard->list); | |
fcdc8ce2 | 10416 | devlink_linecard_types_fini(linecard); |
c246f9b5 JP |
10417 | mutex_unlock(&devlink->linecards_lock); |
10418 | devlink_linecard_put(linecard); | |
10419 | } | |
10420 | EXPORT_SYMBOL_GPL(devlink_linecard_destroy); | |
10421 | ||
fcdc8ce2 JP |
10422 | /** |
10423 | * devlink_linecard_provision_set - Set provisioning on linecard | |
10424 | * | |
10425 | * @linecard: devlink linecard | |
10426 | * @type: linecard type | |
10427 | * | |
10428 | * This is either called directly from the provision() op call or | |
10429 | * as a result of the provision() op call asynchronously. | |
10430 | */ | |
10431 | void devlink_linecard_provision_set(struct devlink_linecard *linecard, | |
10432 | const char *type) | |
10433 | { | |
10434 | mutex_lock(&linecard->state_lock); | |
10435 | WARN_ON(linecard->type && strcmp(linecard->type, type)); | |
10436 | linecard->state = DEVLINK_LINECARD_STATE_PROVISIONED; | |
10437 | linecard->type = type; | |
10438 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
10439 | mutex_unlock(&linecard->state_lock); | |
10440 | } | |
10441 | EXPORT_SYMBOL_GPL(devlink_linecard_provision_set); | |
10442 | ||
10443 | /** | |
10444 | * devlink_linecard_provision_clear - Clear provisioning on linecard | |
10445 | * | |
10446 | * @linecard: devlink linecard | |
10447 | * | |
10448 | * This is either called directly from the unprovision() op call or | |
10449 | * as a result of the unprovision() op call asynchronously. | |
10450 | */ | |
10451 | void devlink_linecard_provision_clear(struct devlink_linecard *linecard) | |
10452 | { | |
10453 | mutex_lock(&linecard->state_lock); | |
7b2d9a1a | 10454 | WARN_ON(linecard->nested_devlink); |
fcdc8ce2 JP |
10455 | linecard->state = DEVLINK_LINECARD_STATE_UNPROVISIONED; |
10456 | linecard->type = NULL; | |
10457 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
10458 | mutex_unlock(&linecard->state_lock); | |
10459 | } | |
10460 | EXPORT_SYMBOL_GPL(devlink_linecard_provision_clear); | |
10461 | ||
10462 | /** | |
10463 | * devlink_linecard_provision_fail - Fail provisioning on linecard | |
10464 | * | |
10465 | * @linecard: devlink linecard | |
10466 | * | |
10467 | * This is either called directly from the provision() op call or | |
10468 | * as a result of the provision() op call asynchronously. | |
10469 | */ | |
10470 | void devlink_linecard_provision_fail(struct devlink_linecard *linecard) | |
10471 | { | |
10472 | mutex_lock(&linecard->state_lock); | |
7b2d9a1a | 10473 | WARN_ON(linecard->nested_devlink); |
fcdc8ce2 JP |
10474 | linecard->state = DEVLINK_LINECARD_STATE_PROVISIONING_FAILED; |
10475 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
10476 | mutex_unlock(&linecard->state_lock); | |
10477 | } | |
10478 | EXPORT_SYMBOL_GPL(devlink_linecard_provision_fail); | |
10479 | ||
fc9f50d5 JP |
10480 | /** |
10481 | * devlink_linecard_activate - Set linecard active | |
10482 | * | |
10483 | * @linecard: devlink linecard | |
10484 | */ | |
10485 | void devlink_linecard_activate(struct devlink_linecard *linecard) | |
10486 | { | |
10487 | mutex_lock(&linecard->state_lock); | |
10488 | WARN_ON(linecard->state != DEVLINK_LINECARD_STATE_PROVISIONED); | |
10489 | linecard->state = DEVLINK_LINECARD_STATE_ACTIVE; | |
10490 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
10491 | mutex_unlock(&linecard->state_lock); | |
10492 | } | |
10493 | EXPORT_SYMBOL_GPL(devlink_linecard_activate); | |
10494 | ||
10495 | /** | |
10496 | * devlink_linecard_deactivate - Set linecard inactive | |
10497 | * | |
10498 | * @linecard: devlink linecard | |
10499 | */ | |
10500 | void devlink_linecard_deactivate(struct devlink_linecard *linecard) | |
10501 | { | |
10502 | mutex_lock(&linecard->state_lock); | |
10503 | switch (linecard->state) { | |
10504 | case DEVLINK_LINECARD_STATE_ACTIVE: | |
10505 | linecard->state = DEVLINK_LINECARD_STATE_PROVISIONED; | |
10506 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
10507 | break; | |
10508 | case DEVLINK_LINECARD_STATE_UNPROVISIONING: | |
10509 | /* Line card is being deactivated as part | |
10510 | * of unprovisioning flow. | |
10511 | */ | |
10512 | break; | |
10513 | default: | |
10514 | WARN_ON(1); | |
10515 | break; | |
10516 | } | |
10517 | mutex_unlock(&linecard->state_lock); | |
10518 | } | |
10519 | EXPORT_SYMBOL_GPL(devlink_linecard_deactivate); | |
10520 | ||
7b2d9a1a JP |
10521 | /** |
10522 | * devlink_linecard_nested_dl_set - Attach/detach nested devlink | |
10523 | * instance to linecard. | |
10524 | * | |
10525 | * @linecard: devlink linecard | |
10526 | * @nested_devlink: devlink instance to attach or NULL to detach | |
10527 | */ | |
10528 | void devlink_linecard_nested_dl_set(struct devlink_linecard *linecard, | |
10529 | struct devlink *nested_devlink) | |
10530 | { | |
10531 | mutex_lock(&linecard->state_lock); | |
10532 | linecard->nested_devlink = nested_devlink; | |
10533 | devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW); | |
10534 | mutex_unlock(&linecard->state_lock); | |
10535 | } | |
10536 | EXPORT_SYMBOL_GPL(devlink_linecard_nested_dl_set); | |
10537 | ||
755cfa69 JP |
10538 | int devl_sb_register(struct devlink *devlink, unsigned int sb_index, |
10539 | u32 size, u16 ingress_pools_count, | |
10540 | u16 egress_pools_count, u16 ingress_tc_count, | |
10541 | u16 egress_tc_count) | |
bf797471 JP |
10542 | { |
10543 | struct devlink_sb *devlink_sb; | |
bf797471 | 10544 | |
755cfa69 JP |
10545 | lockdep_assert_held(&devlink->lock); |
10546 | ||
10547 | if (devlink_sb_index_exists(devlink, sb_index)) | |
10548 | return -EEXIST; | |
bf797471 JP |
10549 | |
10550 | devlink_sb = kzalloc(sizeof(*devlink_sb), GFP_KERNEL); | |
755cfa69 JP |
10551 | if (!devlink_sb) |
10552 | return -ENOMEM; | |
bf797471 JP |
10553 | devlink_sb->index = sb_index; |
10554 | devlink_sb->size = size; | |
10555 | devlink_sb->ingress_pools_count = ingress_pools_count; | |
10556 | devlink_sb->egress_pools_count = egress_pools_count; | |
10557 | devlink_sb->ingress_tc_count = ingress_tc_count; | |
10558 | devlink_sb->egress_tc_count = egress_tc_count; | |
10559 | list_add_tail(&devlink_sb->list, &devlink->sb_list); | |
755cfa69 JP |
10560 | return 0; |
10561 | } | |
10562 | EXPORT_SYMBOL_GPL(devl_sb_register); | |
10563 | ||
10564 | int devlink_sb_register(struct devlink *devlink, unsigned int sb_index, | |
10565 | u32 size, u16 ingress_pools_count, | |
10566 | u16 egress_pools_count, u16 ingress_tc_count, | |
10567 | u16 egress_tc_count) | |
10568 | { | |
10569 | int err; | |
10570 | ||
10571 | devl_lock(devlink); | |
10572 | err = devl_sb_register(devlink, sb_index, size, ingress_pools_count, | |
10573 | egress_pools_count, ingress_tc_count, | |
10574 | egress_tc_count); | |
7715023a | 10575 | devl_unlock(devlink); |
bf797471 JP |
10576 | return err; |
10577 | } | |
10578 | EXPORT_SYMBOL_GPL(devlink_sb_register); | |
10579 | ||
755cfa69 | 10580 | void devl_sb_unregister(struct devlink *devlink, unsigned int sb_index) |
bf797471 JP |
10581 | { |
10582 | struct devlink_sb *devlink_sb; | |
10583 | ||
755cfa69 JP |
10584 | lockdep_assert_held(&devlink->lock); |
10585 | ||
bf797471 JP |
10586 | devlink_sb = devlink_sb_get_by_index(devlink, sb_index); |
10587 | WARN_ON(!devlink_sb); | |
10588 | list_del(&devlink_sb->list); | |
bf797471 JP |
10589 | kfree(devlink_sb); |
10590 | } | |
755cfa69 JP |
10591 | EXPORT_SYMBOL_GPL(devl_sb_unregister); |
10592 | ||
10593 | void devlink_sb_unregister(struct devlink *devlink, unsigned int sb_index) | |
10594 | { | |
10595 | devl_lock(devlink); | |
10596 | devl_sb_unregister(devlink, sb_index); | |
10597 | devl_unlock(devlink); | |
10598 | } | |
bf797471 JP |
10599 | EXPORT_SYMBOL_GPL(devlink_sb_unregister); |
10600 | ||
70a2ff89 JP |
10601 | /** |
10602 | * devl_dpipe_headers_register - register dpipe headers | |
10603 | * | |
10604 | * @devlink: devlink | |
10605 | * @dpipe_headers: dpipe header array | |
10606 | * | |
10607 | * Register the headers supported by hardware. | |
10608 | */ | |
10609 | void devl_dpipe_headers_register(struct devlink *devlink, | |
10610 | struct devlink_dpipe_headers *dpipe_headers) | |
10611 | { | |
10612 | lockdep_assert_held(&devlink->lock); | |
10613 | ||
10614 | devlink->dpipe_headers = dpipe_headers; | |
10615 | } | |
10616 | EXPORT_SYMBOL_GPL(devl_dpipe_headers_register); | |
10617 | ||
70a2ff89 JP |
10618 | /** |
10619 | * devl_dpipe_headers_unregister - unregister dpipe headers | |
10620 | * | |
10621 | * @devlink: devlink | |
10622 | * | |
10623 | * Unregister the headers supported by hardware. | |
10624 | */ | |
10625 | void devl_dpipe_headers_unregister(struct devlink *devlink) | |
10626 | { | |
10627 | lockdep_assert_held(&devlink->lock); | |
10628 | ||
10629 | devlink->dpipe_headers = NULL; | |
10630 | } | |
10631 | EXPORT_SYMBOL_GPL(devl_dpipe_headers_unregister); | |
10632 | ||
1555d204 AS |
10633 | /** |
10634 | * devlink_dpipe_table_counter_enabled - check if counter allocation | |
10635 | * required | |
10636 | * @devlink: devlink | |
10637 | * @table_name: tables name | |
10638 | * | |
10639 | * Used by driver to check if counter allocation is required. | |
10640 | * After counter allocation is turned on the table entries | |
10641 | * are updated to include counter statistics. | |
10642 | * | |
10643 | * After that point on the driver must respect the counter | |
10644 | * state so that each entry added to the table is added | |
10645 | * with a counter. | |
10646 | */ | |
10647 | bool devlink_dpipe_table_counter_enabled(struct devlink *devlink, | |
10648 | const char *table_name) | |
10649 | { | |
10650 | struct devlink_dpipe_table *table; | |
10651 | bool enabled; | |
10652 | ||
10653 | rcu_read_lock(); | |
10654 | table = devlink_dpipe_table_find(&devlink->dpipe_table_list, | |
2eb51c75 | 10655 | table_name, devlink); |
1555d204 AS |
10656 | enabled = false; |
10657 | if (table) | |
10658 | enabled = table->counters_enabled; | |
10659 | rcu_read_unlock(); | |
10660 | return enabled; | |
10661 | } | |
10662 | EXPORT_SYMBOL_GPL(devlink_dpipe_table_counter_enabled); | |
10663 | ||
10664 | /** | |
70a2ff89 | 10665 | * devl_dpipe_table_register - register dpipe table |
1555d204 | 10666 | * |
70a2ff89 JP |
10667 | * @devlink: devlink |
10668 | * @table_name: table name | |
10669 | * @table_ops: table ops | |
10670 | * @priv: priv | |
10671 | * @counter_control_extern: external control for counters | |
1555d204 | 10672 | */ |
70a2ff89 JP |
10673 | int devl_dpipe_table_register(struct devlink *devlink, |
10674 | const char *table_name, | |
10675 | struct devlink_dpipe_table_ops *table_ops, | |
10676 | void *priv, bool counter_control_extern) | |
1555d204 AS |
10677 | { |
10678 | struct devlink_dpipe_table *table; | |
70a2ff89 JP |
10679 | |
10680 | lockdep_assert_held(&devlink->lock); | |
1555d204 | 10681 | |
ffd3cdcc AS |
10682 | if (WARN_ON(!table_ops->size_get)) |
10683 | return -EINVAL; | |
10684 | ||
2eb51c75 | 10685 | if (devlink_dpipe_table_find(&devlink->dpipe_table_list, table_name, |
70a2ff89 JP |
10686 | devlink)) |
10687 | return -EEXIST; | |
6132c1d9 | 10688 | |
1555d204 | 10689 | table = kzalloc(sizeof(*table), GFP_KERNEL); |
70a2ff89 JP |
10690 | if (!table) |
10691 | return -ENOMEM; | |
1555d204 AS |
10692 | |
10693 | table->name = table_name; | |
10694 | table->table_ops = table_ops; | |
10695 | table->priv = priv; | |
1555d204 AS |
10696 | table->counter_control_extern = counter_control_extern; |
10697 | ||
1555d204 | 10698 | list_add_tail_rcu(&table->list, &devlink->dpipe_table_list); |
70a2ff89 JP |
10699 | |
10700 | return 0; | |
10701 | } | |
10702 | EXPORT_SYMBOL_GPL(devl_dpipe_table_register); | |
10703 | ||
1555d204 | 10704 | /** |
70a2ff89 | 10705 | * devl_dpipe_table_unregister - unregister dpipe table |
1555d204 | 10706 | * |
70a2ff89 JP |
10707 | * @devlink: devlink |
10708 | * @table_name: table name | |
1555d204 | 10709 | */ |
70a2ff89 JP |
10710 | void devl_dpipe_table_unregister(struct devlink *devlink, |
10711 | const char *table_name) | |
1555d204 AS |
10712 | { |
10713 | struct devlink_dpipe_table *table; | |
10714 | ||
70a2ff89 JP |
10715 | lockdep_assert_held(&devlink->lock); |
10716 | ||
1555d204 | 10717 | table = devlink_dpipe_table_find(&devlink->dpipe_table_list, |
2eb51c75 | 10718 | table_name, devlink); |
1555d204 | 10719 | if (!table) |
70a2ff89 | 10720 | return; |
1555d204 | 10721 | list_del_rcu(&table->list); |
1555d204 | 10722 | kfree_rcu(table, rcu); |
70a2ff89 JP |
10723 | } |
10724 | EXPORT_SYMBOL_GPL(devl_dpipe_table_unregister); | |
10725 | ||
d9f9b9a4 | 10726 | /** |
c223d6a4 | 10727 | * devl_resource_register - devlink resource register |
d9f9b9a4 | 10728 | * |
c223d6a4 JP |
10729 | * @devlink: devlink |
10730 | * @resource_name: resource's name | |
10731 | * @resource_size: resource's size | |
10732 | * @resource_id: resource's id | |
10733 | * @parent_resource_id: resource's parent id | |
10734 | * @size_params: size parameters | |
321f7ab0 | 10735 | * |
c223d6a4 JP |
10736 | * Generic resources should reuse the same names across drivers. |
10737 | * Please see the generic resources list at: | |
10738 | * Documentation/networking/devlink/devlink-resource.rst | |
d9f9b9a4 | 10739 | */ |
c223d6a4 JP |
10740 | int devl_resource_register(struct devlink *devlink, |
10741 | const char *resource_name, | |
10742 | u64 resource_size, | |
10743 | u64 resource_id, | |
10744 | u64 parent_resource_id, | |
10745 | const struct devlink_resource_size_params *size_params) | |
d9f9b9a4 AS |
10746 | { |
10747 | struct devlink_resource *resource; | |
10748 | struct list_head *resource_list; | |
14530746 | 10749 | bool top_hierarchy; |
c223d6a4 JP |
10750 | |
10751 | lockdep_assert_held(&devlink->lock); | |
d9f9b9a4 | 10752 | |
14530746 DA |
10753 | top_hierarchy = parent_resource_id == DEVLINK_RESOURCE_ID_PARENT_TOP; |
10754 | ||
d9f9b9a4 | 10755 | resource = devlink_resource_find(devlink, NULL, resource_id); |
c223d6a4 JP |
10756 | if (resource) |
10757 | return -EINVAL; | |
d9f9b9a4 AS |
10758 | |
10759 | resource = kzalloc(sizeof(*resource), GFP_KERNEL); | |
c223d6a4 JP |
10760 | if (!resource) |
10761 | return -ENOMEM; | |
d9f9b9a4 AS |
10762 | |
10763 | if (top_hierarchy) { | |
10764 | resource_list = &devlink->resource_list; | |
10765 | } else { | |
10766 | struct devlink_resource *parent_resource; | |
10767 | ||
10768 | parent_resource = devlink_resource_find(devlink, NULL, | |
10769 | parent_resource_id); | |
10770 | if (parent_resource) { | |
10771 | resource_list = &parent_resource->resource_list; | |
10772 | resource->parent = parent_resource; | |
10773 | } else { | |
b75703de | 10774 | kfree(resource); |
c223d6a4 | 10775 | return -EINVAL; |
d9f9b9a4 AS |
10776 | } |
10777 | } | |
10778 | ||
10779 | resource->name = resource_name; | |
10780 | resource->size = resource_size; | |
10781 | resource->size_new = resource_size; | |
10782 | resource->id = resource_id; | |
d9f9b9a4 | 10783 | resource->size_valid = true; |
77d27096 JP |
10784 | memcpy(&resource->size_params, size_params, |
10785 | sizeof(resource->size_params)); | |
d9f9b9a4 AS |
10786 | INIT_LIST_HEAD(&resource->resource_list); |
10787 | list_add_tail(&resource->list, resource_list); | |
c223d6a4 JP |
10788 | |
10789 | return 0; | |
10790 | } | |
10791 | EXPORT_SYMBOL_GPL(devl_resource_register); | |
10792 | ||
10793 | /** | |
10794 | * devlink_resource_register - devlink resource register | |
10795 | * | |
10796 | * @devlink: devlink | |
10797 | * @resource_name: resource's name | |
10798 | * @resource_size: resource's size | |
10799 | * @resource_id: resource's id | |
10800 | * @parent_resource_id: resource's parent id | |
10801 | * @size_params: size parameters | |
10802 | * | |
10803 | * Generic resources should reuse the same names across drivers. | |
10804 | * Please see the generic resources list at: | |
10805 | * Documentation/networking/devlink/devlink-resource.rst | |
10806 | * | |
10807 | * Context: Takes and release devlink->lock <mutex>. | |
10808 | */ | |
10809 | int devlink_resource_register(struct devlink *devlink, | |
10810 | const char *resource_name, | |
10811 | u64 resource_size, | |
10812 | u64 resource_id, | |
10813 | u64 parent_resource_id, | |
10814 | const struct devlink_resource_size_params *size_params) | |
10815 | { | |
10816 | int err; | |
10817 | ||
10818 | devl_lock(devlink); | |
10819 | err = devl_resource_register(devlink, resource_name, resource_size, | |
10820 | resource_id, parent_resource_id, size_params); | |
7715023a | 10821 | devl_unlock(devlink); |
d9f9b9a4 AS |
10822 | return err; |
10823 | } | |
10824 | EXPORT_SYMBOL_GPL(devlink_resource_register); | |
10825 | ||
4c897cfc LR |
10826 | static void devlink_resource_unregister(struct devlink *devlink, |
10827 | struct devlink_resource *resource) | |
10828 | { | |
10829 | struct devlink_resource *tmp, *child_resource; | |
10830 | ||
10831 | list_for_each_entry_safe(child_resource, tmp, &resource->resource_list, | |
10832 | list) { | |
10833 | devlink_resource_unregister(devlink, child_resource); | |
10834 | list_del(&child_resource->list); | |
10835 | kfree(child_resource); | |
10836 | } | |
10837 | } | |
10838 | ||
d9f9b9a4 | 10839 | /** |
c223d6a4 | 10840 | * devl_resources_unregister - free all resources |
d9f9b9a4 | 10841 | * |
c223d6a4 | 10842 | * @devlink: devlink |
d9f9b9a4 | 10843 | */ |
c223d6a4 | 10844 | void devl_resources_unregister(struct devlink *devlink) |
d9f9b9a4 AS |
10845 | { |
10846 | struct devlink_resource *tmp, *child_resource; | |
d9f9b9a4 | 10847 | |
c223d6a4 | 10848 | lockdep_assert_held(&devlink->lock); |
d9f9b9a4 | 10849 | |
4c897cfc LR |
10850 | list_for_each_entry_safe(child_resource, tmp, &devlink->resource_list, |
10851 | list) { | |
10852 | devlink_resource_unregister(devlink, child_resource); | |
d9f9b9a4 AS |
10853 | list_del(&child_resource->list); |
10854 | kfree(child_resource); | |
10855 | } | |
c223d6a4 JP |
10856 | } |
10857 | EXPORT_SYMBOL_GPL(devl_resources_unregister); | |
d9f9b9a4 | 10858 | |
c223d6a4 JP |
10859 | /** |
10860 | * devlink_resources_unregister - free all resources | |
10861 | * | |
10862 | * @devlink: devlink | |
10863 | * | |
10864 | * Context: Takes and release devlink->lock <mutex>. | |
10865 | */ | |
10866 | void devlink_resources_unregister(struct devlink *devlink) | |
10867 | { | |
10868 | devl_lock(devlink); | |
10869 | devl_resources_unregister(devlink); | |
7715023a | 10870 | devl_unlock(devlink); |
d9f9b9a4 AS |
10871 | } |
10872 | EXPORT_SYMBOL_GPL(devlink_resources_unregister); | |
10873 | ||
c223d6a4 JP |
10874 | /** |
10875 | * devl_resource_size_get - get and update size | |
10876 | * | |
10877 | * @devlink: devlink | |
10878 | * @resource_id: the requested resource id | |
10879 | * @p_resource_size: ptr to update | |
10880 | */ | |
10881 | int devl_resource_size_get(struct devlink *devlink, | |
10882 | u64 resource_id, | |
10883 | u64 *p_resource_size) | |
10884 | { | |
10885 | struct devlink_resource *resource; | |
10886 | ||
10887 | lockdep_assert_held(&devlink->lock); | |
10888 | ||
10889 | resource = devlink_resource_find(devlink, NULL, resource_id); | |
10890 | if (!resource) | |
10891 | return -EINVAL; | |
10892 | *p_resource_size = resource->size_new; | |
10893 | resource->size = resource->size_new; | |
10894 | return 0; | |
10895 | } | |
10896 | EXPORT_SYMBOL_GPL(devl_resource_size_get); | |
10897 | ||
70a2ff89 JP |
10898 | /** |
10899 | * devl_dpipe_table_resource_set - set the resource id | |
10900 | * | |
10901 | * @devlink: devlink | |
10902 | * @table_name: table name | |
10903 | * @resource_id: resource id | |
10904 | * @resource_units: number of resource's units consumed per table's entry | |
10905 | */ | |
10906 | int devl_dpipe_table_resource_set(struct devlink *devlink, | |
10907 | const char *table_name, u64 resource_id, | |
10908 | u64 resource_units) | |
10909 | { | |
10910 | struct devlink_dpipe_table *table; | |
10911 | ||
10912 | table = devlink_dpipe_table_find(&devlink->dpipe_table_list, | |
10913 | table_name, devlink); | |
10914 | if (!table) | |
10915 | return -EINVAL; | |
10916 | ||
10917 | table->resource_id = resource_id; | |
10918 | table->resource_units = resource_units; | |
10919 | table->resource_valid = true; | |
10920 | return 0; | |
10921 | } | |
10922 | EXPORT_SYMBOL_GPL(devl_dpipe_table_resource_set); | |
10923 | ||
c223d6a4 JP |
10924 | /** |
10925 | * devl_resource_occ_get_register - register occupancy getter | |
10926 | * | |
10927 | * @devlink: devlink | |
10928 | * @resource_id: resource id | |
10929 | * @occ_get: occupancy getter callback | |
10930 | * @occ_get_priv: occupancy getter callback priv | |
10931 | */ | |
10932 | void devl_resource_occ_get_register(struct devlink *devlink, | |
10933 | u64 resource_id, | |
10934 | devlink_resource_occ_get_t *occ_get, | |
10935 | void *occ_get_priv) | |
10936 | { | |
10937 | struct devlink_resource *resource; | |
10938 | ||
10939 | lockdep_assert_held(&devlink->lock); | |
10940 | ||
10941 | resource = devlink_resource_find(devlink, NULL, resource_id); | |
10942 | if (WARN_ON(!resource)) | |
10943 | return; | |
10944 | WARN_ON(resource->occ_get); | |
10945 | ||
10946 | resource->occ_get = occ_get; | |
10947 | resource->occ_get_priv = occ_get_priv; | |
10948 | } | |
10949 | EXPORT_SYMBOL_GPL(devl_resource_occ_get_register); | |
10950 | ||
fc56be47 JP |
10951 | /** |
10952 | * devlink_resource_occ_get_register - register occupancy getter | |
10953 | * | |
10954 | * @devlink: devlink | |
10955 | * @resource_id: resource id | |
10956 | * @occ_get: occupancy getter callback | |
10957 | * @occ_get_priv: occupancy getter callback priv | |
c223d6a4 JP |
10958 | * |
10959 | * Context: Takes and release devlink->lock <mutex>. | |
fc56be47 JP |
10960 | */ |
10961 | void devlink_resource_occ_get_register(struct devlink *devlink, | |
10962 | u64 resource_id, | |
10963 | devlink_resource_occ_get_t *occ_get, | |
10964 | void *occ_get_priv) | |
10965 | { | |
7715023a | 10966 | devl_lock(devlink); |
c223d6a4 JP |
10967 | devl_resource_occ_get_register(devlink, resource_id, |
10968 | occ_get, occ_get_priv); | |
7715023a | 10969 | devl_unlock(devlink); |
fc56be47 JP |
10970 | } |
10971 | EXPORT_SYMBOL_GPL(devlink_resource_occ_get_register); | |
10972 | ||
10973 | /** | |
c223d6a4 | 10974 | * devl_resource_occ_get_unregister - unregister occupancy getter |
fc56be47 | 10975 | * |
c223d6a4 JP |
10976 | * @devlink: devlink |
10977 | * @resource_id: resource id | |
fc56be47 | 10978 | */ |
c223d6a4 JP |
10979 | void devl_resource_occ_get_unregister(struct devlink *devlink, |
10980 | u64 resource_id) | |
fc56be47 JP |
10981 | { |
10982 | struct devlink_resource *resource; | |
10983 | ||
c223d6a4 JP |
10984 | lockdep_assert_held(&devlink->lock); |
10985 | ||
fc56be47 JP |
10986 | resource = devlink_resource_find(devlink, NULL, resource_id); |
10987 | if (WARN_ON(!resource)) | |
c223d6a4 | 10988 | return; |
fc56be47 JP |
10989 | WARN_ON(!resource->occ_get); |
10990 | ||
10991 | resource->occ_get = NULL; | |
10992 | resource->occ_get_priv = NULL; | |
c223d6a4 JP |
10993 | } |
10994 | EXPORT_SYMBOL_GPL(devl_resource_occ_get_unregister); | |
10995 | ||
10996 | /** | |
10997 | * devlink_resource_occ_get_unregister - unregister occupancy getter | |
10998 | * | |
10999 | * @devlink: devlink | |
11000 | * @resource_id: resource id | |
11001 | * | |
11002 | * Context: Takes and release devlink->lock <mutex>. | |
11003 | */ | |
11004 | void devlink_resource_occ_get_unregister(struct devlink *devlink, | |
11005 | u64 resource_id) | |
11006 | { | |
11007 | devl_lock(devlink); | |
11008 | devl_resource_occ_get_unregister(devlink, resource_id); | |
7715023a | 11009 | devl_unlock(devlink); |
fc56be47 JP |
11010 | } |
11011 | EXPORT_SYMBOL_GPL(devlink_resource_occ_get_unregister); | |
11012 | ||
39e6160e VV |
11013 | static int devlink_param_verify(const struct devlink_param *param) |
11014 | { | |
11015 | if (!param || !param->name || !param->supported_cmodes) | |
11016 | return -EINVAL; | |
11017 | if (param->generic) | |
11018 | return devlink_param_generic_verify(param); | |
11019 | else | |
11020 | return devlink_param_driver_verify(param); | |
11021 | } | |
11022 | ||
39e6160e VV |
11023 | /** |
11024 | * devlink_params_register - register configuration parameters | |
11025 | * | |
11026 | * @devlink: devlink | |
11027 | * @params: configuration parameters array | |
11028 | * @params_count: number of parameters provided | |
11029 | * | |
11030 | * Register the configuration parameters supported by the driver. | |
11031 | */ | |
11032 | int devlink_params_register(struct devlink *devlink, | |
11033 | const struct devlink_param *params, | |
11034 | size_t params_count) | |
11035 | { | |
ee775b56 LR |
11036 | const struct devlink_param *param = params; |
11037 | int i, err; | |
11038 | ||
7a690ad4 LR |
11039 | ASSERT_DEVLINK_NOT_REGISTERED(devlink); |
11040 | ||
ee775b56 LR |
11041 | for (i = 0; i < params_count; i++, param++) { |
11042 | err = devlink_param_register(devlink, param); | |
11043 | if (err) | |
11044 | goto rollback; | |
11045 | } | |
11046 | return 0; | |
11047 | ||
11048 | rollback: | |
11049 | if (!i) | |
11050 | return err; | |
11051 | ||
11052 | for (param--; i > 0; i--, param--) | |
11053 | devlink_param_unregister(devlink, param); | |
11054 | return err; | |
39e6160e | 11055 | } |
eabaef18 MS |
11056 | EXPORT_SYMBOL_GPL(devlink_params_register); |
11057 | ||
11058 | /** | |
11059 | * devlink_params_unregister - unregister configuration parameters | |
11060 | * @devlink: devlink | |
11061 | * @params: configuration parameters to unregister | |
11062 | * @params_count: number of parameters provided | |
11063 | */ | |
11064 | void devlink_params_unregister(struct devlink *devlink, | |
11065 | const struct devlink_param *params, | |
11066 | size_t params_count) | |
11067 | { | |
ee775b56 LR |
11068 | const struct devlink_param *param = params; |
11069 | int i; | |
11070 | ||
7a690ad4 LR |
11071 | ASSERT_DEVLINK_NOT_REGISTERED(devlink); |
11072 | ||
ee775b56 LR |
11073 | for (i = 0; i < params_count; i++, param++) |
11074 | devlink_param_unregister(devlink, param); | |
eabaef18 MS |
11075 | } |
11076 | EXPORT_SYMBOL_GPL(devlink_params_unregister); | |
11077 | ||
b40c51ef PP |
11078 | /** |
11079 | * devlink_param_register - register one configuration parameter | |
11080 | * | |
11081 | * @devlink: devlink | |
11082 | * @param: one configuration parameter | |
11083 | * | |
11084 | * Register the configuration parameter supported by the driver. | |
11085 | * Return: returns 0 on successful registration or error code otherwise. | |
11086 | */ | |
11087 | int devlink_param_register(struct devlink *devlink, | |
11088 | const struct devlink_param *param) | |
11089 | { | |
ee775b56 | 11090 | struct devlink_param_item *param_item; |
b40c51ef | 11091 | |
7a690ad4 LR |
11092 | ASSERT_DEVLINK_NOT_REGISTERED(devlink); |
11093 | ||
ee775b56 LR |
11094 | WARN_ON(devlink_param_verify(param)); |
11095 | WARN_ON(devlink_param_find_by_name(&devlink->param_list, param->name)); | |
11096 | ||
11097 | if (param->supported_cmodes == BIT(DEVLINK_PARAM_CMODE_DRIVERINIT)) | |
11098 | WARN_ON(param->get || param->set); | |
11099 | else | |
11100 | WARN_ON(!param->get || !param->set); | |
11101 | ||
11102 | param_item = kzalloc(sizeof(*param_item), GFP_KERNEL); | |
11103 | if (!param_item) | |
11104 | return -ENOMEM; | |
11105 | ||
11106 | param_item->param = param; | |
11107 | ||
11108 | list_add_tail(¶m_item->list, &devlink->param_list); | |
11109 | return 0; | |
b40c51ef PP |
11110 | } |
11111 | EXPORT_SYMBOL_GPL(devlink_param_register); | |
11112 | ||
11113 | /** | |
11114 | * devlink_param_unregister - unregister one configuration parameter | |
11115 | * @devlink: devlink | |
11116 | * @param: configuration parameter to unregister | |
11117 | */ | |
11118 | void devlink_param_unregister(struct devlink *devlink, | |
11119 | const struct devlink_param *param) | |
11120 | { | |
ee775b56 LR |
11121 | struct devlink_param_item *param_item; |
11122 | ||
7a690ad4 LR |
11123 | ASSERT_DEVLINK_NOT_REGISTERED(devlink); |
11124 | ||
ee775b56 LR |
11125 | param_item = |
11126 | devlink_param_find_by_name(&devlink->param_list, param->name); | |
11127 | WARN_ON(!param_item); | |
11128 | list_del(¶m_item->list); | |
11129 | kfree(param_item); | |
b40c51ef PP |
11130 | } |
11131 | EXPORT_SYMBOL_GPL(devlink_param_unregister); | |
11132 | ||
8ba024df LR |
11133 | /** |
11134 | * devlink_param_driverinit_value_get - get configuration parameter | |
11135 | * value for driver initializing | |
11136 | * | |
11137 | * @devlink: devlink | |
11138 | * @param_id: parameter ID | |
11139 | * @init_val: value of parameter in driverinit configuration mode | |
11140 | * | |
11141 | * This function should be used by the driver to get driverinit | |
11142 | * configuration for initialization after reload command. | |
11143 | */ | |
11144 | int devlink_param_driverinit_value_get(struct devlink *devlink, u32 param_id, | |
11145 | union devlink_param_value *init_val) | |
ec01aeb1 MS |
11146 | { |
11147 | struct devlink_param_item *param_item; | |
11148 | ||
8ba024df LR |
11149 | if (!devlink_reload_supported(devlink->ops)) |
11150 | return -EOPNOTSUPP; | |
11151 | ||
11152 | param_item = devlink_param_find_by_id(&devlink->param_list, param_id); | |
ec01aeb1 MS |
11153 | if (!param_item) |
11154 | return -EINVAL; | |
11155 | ||
11156 | if (!param_item->driverinit_value_valid || | |
11157 | !devlink_param_cmode_is_supported(param_item->param, | |
11158 | DEVLINK_PARAM_CMODE_DRIVERINIT)) | |
11159 | return -EOPNOTSUPP; | |
11160 | ||
1276534c MS |
11161 | if (param_item->param->type == DEVLINK_PARAM_TYPE_STRING) |
11162 | strcpy(init_val->vstr, param_item->driverinit_value.vstr); | |
11163 | else | |
11164 | *init_val = param_item->driverinit_value; | |
ec01aeb1 MS |
11165 | |
11166 | return 0; | |
11167 | } | |
8ba024df | 11168 | EXPORT_SYMBOL_GPL(devlink_param_driverinit_value_get); |
ffd19b9a | 11169 | |
8ba024df LR |
11170 | /** |
11171 | * devlink_param_driverinit_value_set - set value of configuration | |
11172 | * parameter for driverinit | |
11173 | * configuration mode | |
11174 | * | |
11175 | * @devlink: devlink | |
11176 | * @param_id: parameter ID | |
11177 | * @init_val: value of parameter to set for driverinit configuration mode | |
11178 | * | |
11179 | * This function should be used by the driver to set driverinit | |
11180 | * configuration mode default value. | |
11181 | */ | |
11182 | int devlink_param_driverinit_value_set(struct devlink *devlink, u32 param_id, | |
11183 | union devlink_param_value init_val) | |
5473a7bd VV |
11184 | { |
11185 | struct devlink_param_item *param_item; | |
11186 | ||
7a690ad4 LR |
11187 | ASSERT_DEVLINK_NOT_REGISTERED(devlink); |
11188 | ||
8ba024df | 11189 | param_item = devlink_param_find_by_id(&devlink->param_list, param_id); |
5473a7bd VV |
11190 | if (!param_item) |
11191 | return -EINVAL; | |
11192 | ||
11193 | if (!devlink_param_cmode_is_supported(param_item->param, | |
11194 | DEVLINK_PARAM_CMODE_DRIVERINIT)) | |
11195 | return -EOPNOTSUPP; | |
11196 | ||
11197 | if (param_item->param->type == DEVLINK_PARAM_TYPE_STRING) | |
11198 | strcpy(param_item->driverinit_value.vstr, init_val.vstr); | |
11199 | else | |
11200 | param_item->driverinit_value = init_val; | |
11201 | param_item->driverinit_value_valid = true; | |
5473a7bd VV |
11202 | return 0; |
11203 | } | |
ec01aeb1 MS |
11204 | EXPORT_SYMBOL_GPL(devlink_param_driverinit_value_set); |
11205 | ||
ea601e17 MS |
11206 | /** |
11207 | * devlink_param_value_changed - notify devlink on a parameter's value | |
11208 | * change. Should be called by the driver | |
11209 | * right after the change. | |
11210 | * | |
11211 | * @devlink: devlink | |
11212 | * @param_id: parameter ID | |
11213 | * | |
11214 | * This function should be used by the driver to notify devlink on value | |
11215 | * change, excluding driverinit configuration mode. | |
11216 | * For driverinit configuration mode driver should use the function | |
ea601e17 MS |
11217 | */ |
11218 | void devlink_param_value_changed(struct devlink *devlink, u32 param_id) | |
11219 | { | |
11220 | struct devlink_param_item *param_item; | |
11221 | ||
11222 | param_item = devlink_param_find_by_id(&devlink->param_list, param_id); | |
11223 | WARN_ON(!param_item); | |
11224 | ||
c1e5786d | 11225 | devlink_param_notify(devlink, 0, param_item, DEVLINK_CMD_PARAM_NEW); |
ea601e17 MS |
11226 | } |
11227 | EXPORT_SYMBOL_GPL(devlink_param_value_changed); | |
11228 | ||
b16ebe92 | 11229 | /** |
eb0e9fa2 | 11230 | * devl_region_create - create a new address region |
b16ebe92 | 11231 | * |
eb0e9fa2 JP |
11232 | * @devlink: devlink |
11233 | * @ops: region operations and name | |
11234 | * @region_max_snapshots: Maximum supported number of snapshots for region | |
11235 | * @region_size: size of region | |
b16ebe92 | 11236 | */ |
eb0e9fa2 JP |
11237 | struct devlink_region *devl_region_create(struct devlink *devlink, |
11238 | const struct devlink_region_ops *ops, | |
11239 | u32 region_max_snapshots, | |
11240 | u64 region_size) | |
b16ebe92 AV |
11241 | { |
11242 | struct devlink_region *region; | |
eb0e9fa2 JP |
11243 | |
11244 | devl_assert_locked(devlink); | |
b16ebe92 | 11245 | |
a0a09f6b JK |
11246 | if (WARN_ON(!ops) || WARN_ON(!ops->destructor)) |
11247 | return ERR_PTR(-EINVAL); | |
11248 | ||
eb0e9fa2 JP |
11249 | if (devlink_region_get_by_name(devlink, ops->name)) |
11250 | return ERR_PTR(-EEXIST); | |
b16ebe92 AV |
11251 | |
11252 | region = kzalloc(sizeof(*region), GFP_KERNEL); | |
eb0e9fa2 JP |
11253 | if (!region) |
11254 | return ERR_PTR(-ENOMEM); | |
b16ebe92 AV |
11255 | |
11256 | region->devlink = devlink; | |
11257 | region->max_snapshots = region_max_snapshots; | |
e8937681 | 11258 | region->ops = ops; |
b16ebe92 AV |
11259 | region->size = region_size; |
11260 | INIT_LIST_HEAD(®ion->snapshot_list); | |
2dec18ad | 11261 | mutex_init(®ion->snapshot_lock); |
b16ebe92 | 11262 | list_add_tail(®ion->list, &devlink->region_list); |
866319bb | 11263 | devlink_nl_region_notify(region, NULL, DEVLINK_CMD_REGION_NEW); |
b16ebe92 | 11264 | |
b16ebe92 | 11265 | return region; |
eb0e9fa2 JP |
11266 | } |
11267 | EXPORT_SYMBOL_GPL(devl_region_create); | |
b16ebe92 | 11268 | |
eb0e9fa2 JP |
11269 | /** |
11270 | * devlink_region_create - create a new address region | |
11271 | * | |
11272 | * @devlink: devlink | |
11273 | * @ops: region operations and name | |
11274 | * @region_max_snapshots: Maximum supported number of snapshots for region | |
11275 | * @region_size: size of region | |
11276 | * | |
11277 | * Context: Takes and release devlink->lock <mutex>. | |
11278 | */ | |
11279 | struct devlink_region * | |
11280 | devlink_region_create(struct devlink *devlink, | |
11281 | const struct devlink_region_ops *ops, | |
11282 | u32 region_max_snapshots, u64 region_size) | |
11283 | { | |
11284 | struct devlink_region *region; | |
11285 | ||
11286 | devl_lock(devlink); | |
11287 | region = devl_region_create(devlink, ops, region_max_snapshots, | |
11288 | region_size); | |
7715023a | 11289 | devl_unlock(devlink); |
eb0e9fa2 | 11290 | return region; |
b16ebe92 AV |
11291 | } |
11292 | EXPORT_SYMBOL_GPL(devlink_region_create); | |
11293 | ||
544e7c33 AL |
11294 | /** |
11295 | * devlink_port_region_create - create a new address region for a port | |
11296 | * | |
11297 | * @port: devlink port | |
11298 | * @ops: region operations and name | |
11299 | * @region_max_snapshots: Maximum supported number of snapshots for region | |
11300 | * @region_size: size of region | |
eb0e9fa2 JP |
11301 | * |
11302 | * Context: Takes and release devlink->lock <mutex>. | |
544e7c33 AL |
11303 | */ |
11304 | struct devlink_region * | |
11305 | devlink_port_region_create(struct devlink_port *port, | |
11306 | const struct devlink_port_region_ops *ops, | |
11307 | u32 region_max_snapshots, u64 region_size) | |
11308 | { | |
11309 | struct devlink *devlink = port->devlink; | |
11310 | struct devlink_region *region; | |
11311 | int err = 0; | |
11312 | ||
11313 | if (WARN_ON(!ops) || WARN_ON(!ops->destructor)) | |
11314 | return ERR_PTR(-EINVAL); | |
11315 | ||
7715023a | 11316 | devl_lock(devlink); |
544e7c33 AL |
11317 | |
11318 | if (devlink_port_region_get_by_name(port, ops->name)) { | |
11319 | err = -EEXIST; | |
11320 | goto unlock; | |
11321 | } | |
11322 | ||
11323 | region = kzalloc(sizeof(*region), GFP_KERNEL); | |
11324 | if (!region) { | |
11325 | err = -ENOMEM; | |
11326 | goto unlock; | |
11327 | } | |
11328 | ||
11329 | region->devlink = devlink; | |
11330 | region->port = port; | |
11331 | region->max_snapshots = region_max_snapshots; | |
11332 | region->port_ops = ops; | |
11333 | region->size = region_size; | |
11334 | INIT_LIST_HEAD(®ion->snapshot_list); | |
2dec18ad | 11335 | mutex_init(®ion->snapshot_lock); |
544e7c33 AL |
11336 | list_add_tail(®ion->list, &port->region_list); |
11337 | devlink_nl_region_notify(region, NULL, DEVLINK_CMD_REGION_NEW); | |
11338 | ||
7715023a | 11339 | devl_unlock(devlink); |
544e7c33 AL |
11340 | return region; |
11341 | ||
11342 | unlock: | |
7715023a | 11343 | devl_unlock(devlink); |
544e7c33 AL |
11344 | return ERR_PTR(err); |
11345 | } | |
11346 | EXPORT_SYMBOL_GPL(devlink_port_region_create); | |
11347 | ||
b16ebe92 | 11348 | /** |
eb0e9fa2 | 11349 | * devl_region_destroy - destroy address region |
b16ebe92 | 11350 | * |
eb0e9fa2 | 11351 | * @region: devlink region to destroy |
b16ebe92 | 11352 | */ |
eb0e9fa2 | 11353 | void devl_region_destroy(struct devlink_region *region) |
b16ebe92 AV |
11354 | { |
11355 | struct devlink *devlink = region->devlink; | |
d7e52722 | 11356 | struct devlink_snapshot *snapshot, *ts; |
b16ebe92 | 11357 | |
eb0e9fa2 | 11358 | devl_assert_locked(devlink); |
d7e52722 AV |
11359 | |
11360 | /* Free all snapshots of region */ | |
11361 | list_for_each_entry_safe(snapshot, ts, ®ion->snapshot_list, list) | |
92b49822 | 11362 | devlink_region_snapshot_del(region, snapshot); |
d7e52722 | 11363 | |
b16ebe92 | 11364 | list_del(®ion->list); |
2dec18ad | 11365 | mutex_destroy(®ion->snapshot_lock); |
866319bb AV |
11366 | |
11367 | devlink_nl_region_notify(region, NULL, DEVLINK_CMD_REGION_DEL); | |
b16ebe92 AV |
11368 | kfree(region); |
11369 | } | |
eb0e9fa2 JP |
11370 | EXPORT_SYMBOL_GPL(devl_region_destroy); |
11371 | ||
11372 | /** | |
11373 | * devlink_region_destroy - destroy address region | |
11374 | * | |
11375 | * @region: devlink region to destroy | |
11376 | * | |
11377 | * Context: Takes and release devlink->lock <mutex>. | |
11378 | */ | |
11379 | void devlink_region_destroy(struct devlink_region *region) | |
11380 | { | |
11381 | struct devlink *devlink = region->devlink; | |
11382 | ||
11383 | devl_lock(devlink); | |
11384 | devl_region_destroy(region); | |
11385 | devl_unlock(devlink); | |
11386 | } | |
b16ebe92 AV |
11387 | EXPORT_SYMBOL_GPL(devlink_region_destroy); |
11388 | ||
ccadfa44 | 11389 | /** |
b0efcae5 | 11390 | * devlink_region_snapshot_id_get - get snapshot ID |
ccadfa44 AV |
11391 | * |
11392 | * This callback should be called when adding a new snapshot, | |
11393 | * Driver should use the same id for multiple snapshots taken | |
11394 | * on multiple regions at the same time/by the same trigger. | |
11395 | * | |
12102436 JK |
11396 | * The caller of this function must use devlink_region_snapshot_id_put |
11397 | * when finished creating regions using this id. | |
11398 | * | |
7ef19d3b JK |
11399 | * Returns zero on success, or a negative error code on failure. |
11400 | * | |
ccadfa44 | 11401 | * @devlink: devlink |
7ef19d3b | 11402 | * @id: storage to return id |
ccadfa44 | 11403 | */ |
7ef19d3b | 11404 | int devlink_region_snapshot_id_get(struct devlink *devlink, u32 *id) |
ccadfa44 | 11405 | { |
5502e871 | 11406 | return __devlink_region_snapshot_id_get(devlink, id); |
ccadfa44 | 11407 | } |
b0efcae5 | 11408 | EXPORT_SYMBOL_GPL(devlink_region_snapshot_id_get); |
ccadfa44 | 11409 | |
12102436 JK |
11410 | /** |
11411 | * devlink_region_snapshot_id_put - put snapshot ID reference | |
11412 | * | |
11413 | * This should be called by a driver after finishing creating snapshots | |
11414 | * with an id. Doing so ensures that the ID can later be released in the | |
11415 | * event that all snapshots using it have been destroyed. | |
11416 | * | |
11417 | * @devlink: devlink | |
11418 | * @id: id to release reference on | |
11419 | */ | |
11420 | void devlink_region_snapshot_id_put(struct devlink *devlink, u32 id) | |
11421 | { | |
12102436 | 11422 | __devlink_snapshot_id_decrement(devlink, id); |
12102436 JK |
11423 | } |
11424 | EXPORT_SYMBOL_GPL(devlink_region_snapshot_id_put); | |
11425 | ||
d7e52722 AV |
11426 | /** |
11427 | * devlink_region_snapshot_create - create a new snapshot | |
11428 | * This will add a new snapshot of a region. The snapshot | |
11429 | * will be stored on the region struct and can be accessed | |
6d82f67e | 11430 | * from devlink. This is useful for future analyses of snapshots. |
d7e52722 AV |
11431 | * Multiple snapshots can be created on a region. |
11432 | * The @snapshot_id should be obtained using the getter function. | |
11433 | * | |
eeaadd82 | 11434 | * @region: devlink region of the snapshot |
d7e52722 AV |
11435 | * @data: snapshot data |
11436 | * @snapshot_id: snapshot id to be created | |
d7e52722 | 11437 | */ |
3a5e5234 | 11438 | int devlink_region_snapshot_create(struct devlink_region *region, |
a0a09f6b | 11439 | u8 *data, u32 snapshot_id) |
d7e52722 | 11440 | { |
d7e52722 AV |
11441 | int err; |
11442 | ||
2dec18ad | 11443 | mutex_lock(®ion->snapshot_lock); |
cf80faee | 11444 | err = __devlink_region_snapshot_create(region, data, snapshot_id); |
2dec18ad | 11445 | mutex_unlock(®ion->snapshot_lock); |
d7e52722 AV |
11446 | return err; |
11447 | } | |
11448 | EXPORT_SYMBOL_GPL(devlink_region_snapshot_create); | |
11449 | ||
0f420b6c IS |
11450 | #define DEVLINK_TRAP(_id, _type) \ |
11451 | { \ | |
11452 | .type = DEVLINK_TRAP_TYPE_##_type, \ | |
11453 | .id = DEVLINK_TRAP_GENERIC_ID_##_id, \ | |
11454 | .name = DEVLINK_TRAP_GENERIC_NAME_##_id, \ | |
11455 | } | |
11456 | ||
11457 | static const struct devlink_trap devlink_trap_generic[] = { | |
391203ab IS |
11458 | DEVLINK_TRAP(SMAC_MC, DROP), |
11459 | DEVLINK_TRAP(VLAN_TAG_MISMATCH, DROP), | |
11460 | DEVLINK_TRAP(INGRESS_VLAN_FILTER, DROP), | |
11461 | DEVLINK_TRAP(INGRESS_STP_FILTER, DROP), | |
11462 | DEVLINK_TRAP(EMPTY_TX_LIST, DROP), | |
11463 | DEVLINK_TRAP(PORT_LOOPBACK_FILTER, DROP), | |
11464 | DEVLINK_TRAP(BLACKHOLE_ROUTE, DROP), | |
11465 | DEVLINK_TRAP(TTL_ERROR, EXCEPTION), | |
11466 | DEVLINK_TRAP(TAIL_DROP, DROP), | |
6896cc4d AC |
11467 | DEVLINK_TRAP(NON_IP_PACKET, DROP), |
11468 | DEVLINK_TRAP(UC_DIP_MC_DMAC, DROP), | |
11469 | DEVLINK_TRAP(DIP_LB, DROP), | |
11470 | DEVLINK_TRAP(SIP_MC, DROP), | |
11471 | DEVLINK_TRAP(SIP_LB, DROP), | |
11472 | DEVLINK_TRAP(CORRUPTED_IP_HDR, DROP), | |
11473 | DEVLINK_TRAP(IPV4_SIP_BC, DROP), | |
11474 | DEVLINK_TRAP(IPV6_MC_DIP_RESERVED_SCOPE, DROP), | |
11475 | DEVLINK_TRAP(IPV6_MC_DIP_INTERFACE_LOCAL_SCOPE, DROP), | |
3b063ae5 AC |
11476 | DEVLINK_TRAP(MTU_ERROR, EXCEPTION), |
11477 | DEVLINK_TRAP(UNRESOLVED_NEIGH, EXCEPTION), | |
11478 | DEVLINK_TRAP(RPF, EXCEPTION), | |
11479 | DEVLINK_TRAP(REJECT_ROUTE, EXCEPTION), | |
11480 | DEVLINK_TRAP(IPV4_LPM_UNICAST_MISS, EXCEPTION), | |
11481 | DEVLINK_TRAP(IPV6_LPM_UNICAST_MISS, EXCEPTION), | |
95f0ead8 | 11482 | DEVLINK_TRAP(NON_ROUTABLE, DROP), |
13c056ec | 11483 | DEVLINK_TRAP(DECAP_ERROR, EXCEPTION), |
c3cae491 | 11484 | DEVLINK_TRAP(OVERLAY_SMAC_MC, DROP), |
ecd942a0 JP |
11485 | DEVLINK_TRAP(INGRESS_FLOW_ACTION_DROP, DROP), |
11486 | DEVLINK_TRAP(EGRESS_FLOW_ACTION_DROP, DROP), | |
515eac67 IS |
11487 | DEVLINK_TRAP(STP, CONTROL), |
11488 | DEVLINK_TRAP(LACP, CONTROL), | |
11489 | DEVLINK_TRAP(LLDP, CONTROL), | |
11490 | DEVLINK_TRAP(IGMP_QUERY, CONTROL), | |
11491 | DEVLINK_TRAP(IGMP_V1_REPORT, CONTROL), | |
11492 | DEVLINK_TRAP(IGMP_V2_REPORT, CONTROL), | |
11493 | DEVLINK_TRAP(IGMP_V3_REPORT, CONTROL), | |
11494 | DEVLINK_TRAP(IGMP_V2_LEAVE, CONTROL), | |
11495 | DEVLINK_TRAP(MLD_QUERY, CONTROL), | |
11496 | DEVLINK_TRAP(MLD_V1_REPORT, CONTROL), | |
11497 | DEVLINK_TRAP(MLD_V2_REPORT, CONTROL), | |
11498 | DEVLINK_TRAP(MLD_V1_DONE, CONTROL), | |
d77cfd16 IS |
11499 | DEVLINK_TRAP(IPV4_DHCP, CONTROL), |
11500 | DEVLINK_TRAP(IPV6_DHCP, CONTROL), | |
11501 | DEVLINK_TRAP(ARP_REQUEST, CONTROL), | |
11502 | DEVLINK_TRAP(ARP_RESPONSE, CONTROL), | |
11503 | DEVLINK_TRAP(ARP_OVERLAY, CONTROL), | |
11504 | DEVLINK_TRAP(IPV6_NEIGH_SOLICIT, CONTROL), | |
11505 | DEVLINK_TRAP(IPV6_NEIGH_ADVERT, CONTROL), | |
11506 | DEVLINK_TRAP(IPV4_BFD, CONTROL), | |
11507 | DEVLINK_TRAP(IPV6_BFD, CONTROL), | |
11508 | DEVLINK_TRAP(IPV4_OSPF, CONTROL), | |
11509 | DEVLINK_TRAP(IPV6_OSPF, CONTROL), | |
11510 | DEVLINK_TRAP(IPV4_BGP, CONTROL), | |
11511 | DEVLINK_TRAP(IPV6_BGP, CONTROL), | |
11512 | DEVLINK_TRAP(IPV4_VRRP, CONTROL), | |
11513 | DEVLINK_TRAP(IPV6_VRRP, CONTROL), | |
11514 | DEVLINK_TRAP(IPV4_PIM, CONTROL), | |
11515 | DEVLINK_TRAP(IPV6_PIM, CONTROL), | |
11516 | DEVLINK_TRAP(UC_LB, CONTROL), | |
11517 | DEVLINK_TRAP(LOCAL_ROUTE, CONTROL), | |
11518 | DEVLINK_TRAP(EXTERNAL_ROUTE, CONTROL), | |
11519 | DEVLINK_TRAP(IPV6_UC_DIP_LINK_LOCAL_SCOPE, CONTROL), | |
11520 | DEVLINK_TRAP(IPV6_DIP_ALL_NODES, CONTROL), | |
11521 | DEVLINK_TRAP(IPV6_DIP_ALL_ROUTERS, CONTROL), | |
11522 | DEVLINK_TRAP(IPV6_ROUTER_SOLICIT, CONTROL), | |
11523 | DEVLINK_TRAP(IPV6_ROUTER_ADVERT, CONTROL), | |
11524 | DEVLINK_TRAP(IPV6_REDIRECT, CONTROL), | |
11525 | DEVLINK_TRAP(IPV4_ROUTER_ALERT, CONTROL), | |
11526 | DEVLINK_TRAP(IPV6_ROUTER_ALERT, CONTROL), | |
11527 | DEVLINK_TRAP(PTP_EVENT, CONTROL), | |
11528 | DEVLINK_TRAP(PTP_GENERAL, CONTROL), | |
5eb18a2b IS |
11529 | DEVLINK_TRAP(FLOW_ACTION_SAMPLE, CONTROL), |
11530 | DEVLINK_TRAP(FLOW_ACTION_TRAP, CONTROL), | |
08e335f6 | 11531 | DEVLINK_TRAP(EARLY_DROP, DROP), |
10c24eb2 IC |
11532 | DEVLINK_TRAP(VXLAN_PARSING, DROP), |
11533 | DEVLINK_TRAP(LLC_SNAP_PARSING, DROP), | |
11534 | DEVLINK_TRAP(VLAN_PARSING, DROP), | |
11535 | DEVLINK_TRAP(PPPOE_PPP_PARSING, DROP), | |
11536 | DEVLINK_TRAP(MPLS_PARSING, DROP), | |
11537 | DEVLINK_TRAP(ARP_PARSING, DROP), | |
11538 | DEVLINK_TRAP(IP_1_PARSING, DROP), | |
11539 | DEVLINK_TRAP(IP_N_PARSING, DROP), | |
11540 | DEVLINK_TRAP(GRE_PARSING, DROP), | |
11541 | DEVLINK_TRAP(UDP_PARSING, DROP), | |
11542 | DEVLINK_TRAP(TCP_PARSING, DROP), | |
11543 | DEVLINK_TRAP(IPSEC_PARSING, DROP), | |
11544 | DEVLINK_TRAP(SCTP_PARSING, DROP), | |
11545 | DEVLINK_TRAP(DCCP_PARSING, DROP), | |
11546 | DEVLINK_TRAP(GTP_PARSING, DROP), | |
11547 | DEVLINK_TRAP(ESP_PARSING, DROP), | |
f0a5013e | 11548 | DEVLINK_TRAP(BLACKHOLE_NEXTHOP, DROP), |
e78ab164 | 11549 | DEVLINK_TRAP(DMAC_FILTER, DROP), |
0f420b6c IS |
11550 | }; |
11551 | ||
11552 | #define DEVLINK_TRAP_GROUP(_id) \ | |
11553 | { \ | |
11554 | .id = DEVLINK_TRAP_GROUP_GENERIC_ID_##_id, \ | |
11555 | .name = DEVLINK_TRAP_GROUP_GENERIC_NAME_##_id, \ | |
11556 | } | |
11557 | ||
11558 | static const struct devlink_trap_group devlink_trap_group_generic[] = { | |
391203ab IS |
11559 | DEVLINK_TRAP_GROUP(L2_DROPS), |
11560 | DEVLINK_TRAP_GROUP(L3_DROPS), | |
678eb199 | 11561 | DEVLINK_TRAP_GROUP(L3_EXCEPTIONS), |
391203ab | 11562 | DEVLINK_TRAP_GROUP(BUFFER_DROPS), |
13c056ec | 11563 | DEVLINK_TRAP_GROUP(TUNNEL_DROPS), |
ecd942a0 | 11564 | DEVLINK_TRAP_GROUP(ACL_DROPS), |
515eac67 IS |
11565 | DEVLINK_TRAP_GROUP(STP), |
11566 | DEVLINK_TRAP_GROUP(LACP), | |
11567 | DEVLINK_TRAP_GROUP(LLDP), | |
11568 | DEVLINK_TRAP_GROUP(MC_SNOOPING), | |
d77cfd16 IS |
11569 | DEVLINK_TRAP_GROUP(DHCP), |
11570 | DEVLINK_TRAP_GROUP(NEIGH_DISCOVERY), | |
11571 | DEVLINK_TRAP_GROUP(BFD), | |
11572 | DEVLINK_TRAP_GROUP(OSPF), | |
11573 | DEVLINK_TRAP_GROUP(BGP), | |
11574 | DEVLINK_TRAP_GROUP(VRRP), | |
11575 | DEVLINK_TRAP_GROUP(PIM), | |
11576 | DEVLINK_TRAP_GROUP(UC_LB), | |
11577 | DEVLINK_TRAP_GROUP(LOCAL_DELIVERY), | |
ec4f5b36 | 11578 | DEVLINK_TRAP_GROUP(EXTERNAL_DELIVERY), |
d77cfd16 IS |
11579 | DEVLINK_TRAP_GROUP(IPV6), |
11580 | DEVLINK_TRAP_GROUP(PTP_EVENT), | |
11581 | DEVLINK_TRAP_GROUP(PTP_GENERAL), | |
5eb18a2b IS |
11582 | DEVLINK_TRAP_GROUP(ACL_SAMPLE), |
11583 | DEVLINK_TRAP_GROUP(ACL_TRAP), | |
10c24eb2 | 11584 | DEVLINK_TRAP_GROUP(PARSER_ERROR_DROPS), |
0f420b6c IS |
11585 | }; |
11586 | ||
11587 | static int devlink_trap_generic_verify(const struct devlink_trap *trap) | |
11588 | { | |
11589 | if (trap->id > DEVLINK_TRAP_GENERIC_ID_MAX) | |
11590 | return -EINVAL; | |
11591 | ||
11592 | if (strcmp(trap->name, devlink_trap_generic[trap->id].name)) | |
11593 | return -EINVAL; | |
11594 | ||
11595 | if (trap->type != devlink_trap_generic[trap->id].type) | |
11596 | return -EINVAL; | |
11597 | ||
11598 | return 0; | |
11599 | } | |
11600 | ||
11601 | static int devlink_trap_driver_verify(const struct devlink_trap *trap) | |
11602 | { | |
11603 | int i; | |
11604 | ||
11605 | if (trap->id <= DEVLINK_TRAP_GENERIC_ID_MAX) | |
11606 | return -EINVAL; | |
11607 | ||
11608 | for (i = 0; i < ARRAY_SIZE(devlink_trap_generic); i++) { | |
11609 | if (!strcmp(trap->name, devlink_trap_generic[i].name)) | |
11610 | return -EEXIST; | |
11611 | } | |
11612 | ||
11613 | return 0; | |
11614 | } | |
11615 | ||
11616 | static int devlink_trap_verify(const struct devlink_trap *trap) | |
11617 | { | |
107f1678 | 11618 | if (!trap || !trap->name) |
0f420b6c IS |
11619 | return -EINVAL; |
11620 | ||
11621 | if (trap->generic) | |
11622 | return devlink_trap_generic_verify(trap); | |
11623 | else | |
11624 | return devlink_trap_driver_verify(trap); | |
11625 | } | |
11626 | ||
11627 | static int | |
11628 | devlink_trap_group_generic_verify(const struct devlink_trap_group *group) | |
11629 | { | |
11630 | if (group->id > DEVLINK_TRAP_GROUP_GENERIC_ID_MAX) | |
11631 | return -EINVAL; | |
11632 | ||
11633 | if (strcmp(group->name, devlink_trap_group_generic[group->id].name)) | |
11634 | return -EINVAL; | |
11635 | ||
11636 | return 0; | |
11637 | } | |
11638 | ||
11639 | static int | |
11640 | devlink_trap_group_driver_verify(const struct devlink_trap_group *group) | |
11641 | { | |
11642 | int i; | |
11643 | ||
11644 | if (group->id <= DEVLINK_TRAP_GROUP_GENERIC_ID_MAX) | |
11645 | return -EINVAL; | |
11646 | ||
11647 | for (i = 0; i < ARRAY_SIZE(devlink_trap_group_generic); i++) { | |
11648 | if (!strcmp(group->name, devlink_trap_group_generic[i].name)) | |
11649 | return -EEXIST; | |
11650 | } | |
11651 | ||
11652 | return 0; | |
11653 | } | |
11654 | ||
11655 | static int devlink_trap_group_verify(const struct devlink_trap_group *group) | |
11656 | { | |
11657 | if (group->generic) | |
11658 | return devlink_trap_group_generic_verify(group); | |
11659 | else | |
11660 | return devlink_trap_group_driver_verify(group); | |
11661 | } | |
11662 | ||
11663 | static void | |
11664 | devlink_trap_group_notify(struct devlink *devlink, | |
11665 | const struct devlink_trap_group_item *group_item, | |
11666 | enum devlink_command cmd) | |
11667 | { | |
11668 | struct sk_buff *msg; | |
11669 | int err; | |
11670 | ||
11671 | WARN_ON_ONCE(cmd != DEVLINK_CMD_TRAP_GROUP_NEW && | |
11672 | cmd != DEVLINK_CMD_TRAP_GROUP_DEL); | |
fb9d19c2 LR |
11673 | if (!xa_get_mark(&devlinks, devlink->index, DEVLINK_REGISTERED)) |
11674 | return; | |
0f420b6c IS |
11675 | |
11676 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
11677 | if (!msg) | |
11678 | return; | |
11679 | ||
11680 | err = devlink_nl_trap_group_fill(msg, devlink, group_item, cmd, 0, 0, | |
11681 | 0); | |
11682 | if (err) { | |
11683 | nlmsg_free(msg); | |
11684 | return; | |
11685 | } | |
11686 | ||
11687 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), | |
11688 | msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
11689 | } | |
11690 | ||
0f420b6c IS |
11691 | static int |
11692 | devlink_trap_item_group_link(struct devlink *devlink, | |
11693 | struct devlink_trap_item *trap_item) | |
11694 | { | |
107f1678 | 11695 | u16 group_id = trap_item->trap->init_group_id; |
0f420b6c IS |
11696 | struct devlink_trap_group_item *group_item; |
11697 | ||
107f1678 | 11698 | group_item = devlink_trap_group_item_lookup_by_id(devlink, group_id); |
a09b37fc IS |
11699 | if (WARN_ON_ONCE(!group_item)) |
11700 | return -EINVAL; | |
0f420b6c IS |
11701 | |
11702 | trap_item->group_item = group_item; | |
11703 | ||
11704 | return 0; | |
11705 | } | |
11706 | ||
0f420b6c IS |
11707 | static void devlink_trap_notify(struct devlink *devlink, |
11708 | const struct devlink_trap_item *trap_item, | |
11709 | enum devlink_command cmd) | |
11710 | { | |
11711 | struct sk_buff *msg; | |
11712 | int err; | |
11713 | ||
11714 | WARN_ON_ONCE(cmd != DEVLINK_CMD_TRAP_NEW && | |
11715 | cmd != DEVLINK_CMD_TRAP_DEL); | |
cf530217 LR |
11716 | if (!xa_get_mark(&devlinks, devlink->index, DEVLINK_REGISTERED)) |
11717 | return; | |
0f420b6c IS |
11718 | |
11719 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
11720 | if (!msg) | |
11721 | return; | |
11722 | ||
11723 | err = devlink_nl_trap_fill(msg, devlink, trap_item, cmd, 0, 0, 0); | |
11724 | if (err) { | |
11725 | nlmsg_free(msg); | |
11726 | return; | |
11727 | } | |
11728 | ||
11729 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), | |
11730 | msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
11731 | } | |
11732 | ||
11733 | static int | |
11734 | devlink_trap_register(struct devlink *devlink, | |
11735 | const struct devlink_trap *trap, void *priv) | |
11736 | { | |
11737 | struct devlink_trap_item *trap_item; | |
11738 | int err; | |
11739 | ||
11740 | if (devlink_trap_item_lookup(devlink, trap->name)) | |
11741 | return -EEXIST; | |
11742 | ||
11743 | trap_item = kzalloc(sizeof(*trap_item), GFP_KERNEL); | |
11744 | if (!trap_item) | |
11745 | return -ENOMEM; | |
11746 | ||
11747 | trap_item->stats = netdev_alloc_pcpu_stats(struct devlink_stats); | |
11748 | if (!trap_item->stats) { | |
11749 | err = -ENOMEM; | |
11750 | goto err_stats_alloc; | |
11751 | } | |
11752 | ||
11753 | trap_item->trap = trap; | |
11754 | trap_item->action = trap->init_action; | |
11755 | trap_item->priv = priv; | |
11756 | ||
11757 | err = devlink_trap_item_group_link(devlink, trap_item); | |
11758 | if (err) | |
11759 | goto err_group_link; | |
11760 | ||
11761 | err = devlink->ops->trap_init(devlink, trap, trap_item); | |
11762 | if (err) | |
11763 | goto err_trap_init; | |
11764 | ||
11765 | list_add_tail(&trap_item->list, &devlink->trap_list); | |
11766 | devlink_trap_notify(devlink, trap_item, DEVLINK_CMD_TRAP_NEW); | |
11767 | ||
11768 | return 0; | |
11769 | ||
11770 | err_trap_init: | |
0f420b6c IS |
11771 | err_group_link: |
11772 | free_percpu(trap_item->stats); | |
11773 | err_stats_alloc: | |
11774 | kfree(trap_item); | |
11775 | return err; | |
11776 | } | |
11777 | ||
11778 | static void devlink_trap_unregister(struct devlink *devlink, | |
11779 | const struct devlink_trap *trap) | |
11780 | { | |
11781 | struct devlink_trap_item *trap_item; | |
11782 | ||
11783 | trap_item = devlink_trap_item_lookup(devlink, trap->name); | |
11784 | if (WARN_ON_ONCE(!trap_item)) | |
11785 | return; | |
11786 | ||
11787 | devlink_trap_notify(devlink, trap_item, DEVLINK_CMD_TRAP_DEL); | |
11788 | list_del(&trap_item->list); | |
11789 | if (devlink->ops->trap_fini) | |
11790 | devlink->ops->trap_fini(devlink, trap, trap_item); | |
0f420b6c IS |
11791 | free_percpu(trap_item->stats); |
11792 | kfree(trap_item); | |
11793 | } | |
11794 | ||
11795 | static void devlink_trap_disable(struct devlink *devlink, | |
11796 | const struct devlink_trap *trap) | |
11797 | { | |
11798 | struct devlink_trap_item *trap_item; | |
11799 | ||
11800 | trap_item = devlink_trap_item_lookup(devlink, trap->name); | |
11801 | if (WARN_ON_ONCE(!trap_item)) | |
11802 | return; | |
11803 | ||
c88e11e0 IS |
11804 | devlink->ops->trap_action_set(devlink, trap, DEVLINK_TRAP_ACTION_DROP, |
11805 | NULL); | |
0f420b6c IS |
11806 | trap_item->action = DEVLINK_TRAP_ACTION_DROP; |
11807 | } | |
11808 | ||
11809 | /** | |
852e85a7 | 11810 | * devl_traps_register - Register packet traps with devlink. |
0f420b6c IS |
11811 | * @devlink: devlink. |
11812 | * @traps: Packet traps. | |
11813 | * @traps_count: Count of provided packet traps. | |
11814 | * @priv: Driver private information. | |
11815 | * | |
11816 | * Return: Non-zero value on failure. | |
11817 | */ | |
852e85a7 JP |
11818 | int devl_traps_register(struct devlink *devlink, |
11819 | const struct devlink_trap *traps, | |
11820 | size_t traps_count, void *priv) | |
0f420b6c IS |
11821 | { |
11822 | int i, err; | |
11823 | ||
11824 | if (!devlink->ops->trap_init || !devlink->ops->trap_action_set) | |
11825 | return -EINVAL; | |
11826 | ||
852e85a7 | 11827 | devl_assert_locked(devlink); |
0f420b6c IS |
11828 | for (i = 0; i < traps_count; i++) { |
11829 | const struct devlink_trap *trap = &traps[i]; | |
11830 | ||
11831 | err = devlink_trap_verify(trap); | |
11832 | if (err) | |
11833 | goto err_trap_verify; | |
11834 | ||
11835 | err = devlink_trap_register(devlink, trap, priv); | |
11836 | if (err) | |
11837 | goto err_trap_register; | |
11838 | } | |
0f420b6c IS |
11839 | |
11840 | return 0; | |
11841 | ||
11842 | err_trap_register: | |
11843 | err_trap_verify: | |
11844 | for (i--; i >= 0; i--) | |
11845 | devlink_trap_unregister(devlink, &traps[i]); | |
852e85a7 JP |
11846 | return err; |
11847 | } | |
11848 | EXPORT_SYMBOL_GPL(devl_traps_register); | |
11849 | ||
11850 | /** | |
11851 | * devlink_traps_register - Register packet traps with devlink. | |
11852 | * @devlink: devlink. | |
11853 | * @traps: Packet traps. | |
11854 | * @traps_count: Count of provided packet traps. | |
11855 | * @priv: Driver private information. | |
11856 | * | |
11857 | * Context: Takes and release devlink->lock <mutex>. | |
11858 | * | |
11859 | * Return: Non-zero value on failure. | |
11860 | */ | |
11861 | int devlink_traps_register(struct devlink *devlink, | |
11862 | const struct devlink_trap *traps, | |
11863 | size_t traps_count, void *priv) | |
11864 | { | |
11865 | int err; | |
11866 | ||
11867 | devl_lock(devlink); | |
11868 | err = devl_traps_register(devlink, traps, traps_count, priv); | |
7715023a | 11869 | devl_unlock(devlink); |
0f420b6c IS |
11870 | return err; |
11871 | } | |
11872 | EXPORT_SYMBOL_GPL(devlink_traps_register); | |
11873 | ||
11874 | /** | |
852e85a7 | 11875 | * devl_traps_unregister - Unregister packet traps from devlink. |
0f420b6c IS |
11876 | * @devlink: devlink. |
11877 | * @traps: Packet traps. | |
11878 | * @traps_count: Count of provided packet traps. | |
11879 | */ | |
852e85a7 JP |
11880 | void devl_traps_unregister(struct devlink *devlink, |
11881 | const struct devlink_trap *traps, | |
11882 | size_t traps_count) | |
0f420b6c IS |
11883 | { |
11884 | int i; | |
11885 | ||
852e85a7 | 11886 | devl_assert_locked(devlink); |
0f420b6c IS |
11887 | /* Make sure we do not have any packets in-flight while unregistering |
11888 | * traps by disabling all of them and waiting for a grace period. | |
11889 | */ | |
11890 | for (i = traps_count - 1; i >= 0; i--) | |
11891 | devlink_trap_disable(devlink, &traps[i]); | |
11892 | synchronize_rcu(); | |
11893 | for (i = traps_count - 1; i >= 0; i--) | |
11894 | devlink_trap_unregister(devlink, &traps[i]); | |
852e85a7 JP |
11895 | } |
11896 | EXPORT_SYMBOL_GPL(devl_traps_unregister); | |
11897 | ||
11898 | /** | |
11899 | * devlink_traps_unregister - Unregister packet traps from devlink. | |
11900 | * @devlink: devlink. | |
11901 | * @traps: Packet traps. | |
11902 | * @traps_count: Count of provided packet traps. | |
11903 | * | |
11904 | * Context: Takes and release devlink->lock <mutex>. | |
11905 | */ | |
11906 | void devlink_traps_unregister(struct devlink *devlink, | |
11907 | const struct devlink_trap *traps, | |
11908 | size_t traps_count) | |
11909 | { | |
11910 | devl_lock(devlink); | |
11911 | devl_traps_unregister(devlink, traps, traps_count); | |
7715023a | 11912 | devl_unlock(devlink); |
0f420b6c IS |
11913 | } |
11914 | EXPORT_SYMBOL_GPL(devlink_traps_unregister); | |
11915 | ||
11916 | static void | |
11917 | devlink_trap_stats_update(struct devlink_stats __percpu *trap_stats, | |
11918 | size_t skb_len) | |
11919 | { | |
11920 | struct devlink_stats *stats; | |
11921 | ||
11922 | stats = this_cpu_ptr(trap_stats); | |
11923 | u64_stats_update_begin(&stats->syncp); | |
958751e0 ED |
11924 | u64_stats_add(&stats->rx_bytes, skb_len); |
11925 | u64_stats_inc(&stats->rx_packets); | |
0f420b6c IS |
11926 | u64_stats_update_end(&stats->syncp); |
11927 | } | |
11928 | ||
5b88823b IS |
11929 | static void |
11930 | devlink_trap_report_metadata_set(struct devlink_trap_metadata *metadata, | |
11931 | const struct devlink_trap_item *trap_item, | |
11932 | struct devlink_port *in_devlink_port, | |
11933 | const struct flow_action_cookie *fa_cookie) | |
11934 | { | |
11935 | metadata->trap_name = trap_item->trap->name; | |
11936 | metadata->trap_group_name = trap_item->group_item->group->name; | |
11937 | metadata->fa_cookie = fa_cookie; | |
93e15596 | 11938 | metadata->trap_type = trap_item->trap->type; |
5b88823b IS |
11939 | |
11940 | spin_lock(&in_devlink_port->type_lock); | |
11941 | if (in_devlink_port->type == DEVLINK_PORT_TYPE_ETH) | |
11942 | metadata->input_dev = in_devlink_port->type_dev; | |
11943 | spin_unlock(&in_devlink_port->type_lock); | |
11944 | } | |
11945 | ||
0f420b6c IS |
11946 | /** |
11947 | * devlink_trap_report - Report trapped packet to drop monitor. | |
11948 | * @devlink: devlink. | |
11949 | * @skb: Trapped packet. | |
11950 | * @trap_ctx: Trap context. | |
11951 | * @in_devlink_port: Input devlink port. | |
5a2e106c | 11952 | * @fa_cookie: Flow action cookie. Could be NULL. |
0f420b6c IS |
11953 | */ |
11954 | void devlink_trap_report(struct devlink *devlink, struct sk_buff *skb, | |
5a2e106c JP |
11955 | void *trap_ctx, struct devlink_port *in_devlink_port, |
11956 | const struct flow_action_cookie *fa_cookie) | |
11957 | ||
0f420b6c IS |
11958 | { |
11959 | struct devlink_trap_item *trap_item = trap_ctx; | |
0f420b6c IS |
11960 | |
11961 | devlink_trap_stats_update(trap_item->stats, skb->len); | |
11962 | devlink_trap_stats_update(trap_item->group_item->stats, skb->len); | |
11963 | ||
5b88823b IS |
11964 | if (trace_devlink_trap_report_enabled()) { |
11965 | struct devlink_trap_metadata metadata = {}; | |
11966 | ||
11967 | devlink_trap_report_metadata_set(&metadata, trap_item, | |
11968 | in_devlink_port, fa_cookie); | |
11969 | trace_devlink_trap_report(devlink, skb, &metadata); | |
11970 | } | |
0f420b6c IS |
11971 | } |
11972 | EXPORT_SYMBOL_GPL(devlink_trap_report); | |
11973 | ||
11974 | /** | |
11975 | * devlink_trap_ctx_priv - Trap context to driver private information. | |
11976 | * @trap_ctx: Trap context. | |
11977 | * | |
11978 | * Return: Driver private information passed during registration. | |
11979 | */ | |
11980 | void *devlink_trap_ctx_priv(void *trap_ctx) | |
11981 | { | |
11982 | struct devlink_trap_item *trap_item = trap_ctx; | |
11983 | ||
11984 | return trap_item->priv; | |
11985 | } | |
11986 | EXPORT_SYMBOL_GPL(devlink_trap_ctx_priv); | |
11987 | ||
f9f54392 IS |
11988 | static int |
11989 | devlink_trap_group_item_policer_link(struct devlink *devlink, | |
11990 | struct devlink_trap_group_item *group_item) | |
11991 | { | |
11992 | u32 policer_id = group_item->group->init_policer_id; | |
11993 | struct devlink_trap_policer_item *policer_item; | |
11994 | ||
11995 | if (policer_id == 0) | |
11996 | return 0; | |
11997 | ||
11998 | policer_item = devlink_trap_policer_item_lookup(devlink, policer_id); | |
11999 | if (WARN_ON_ONCE(!policer_item)) | |
12000 | return -EINVAL; | |
12001 | ||
12002 | group_item->policer_item = policer_item; | |
12003 | ||
12004 | return 0; | |
12005 | } | |
12006 | ||
95ad9555 IS |
12007 | static int |
12008 | devlink_trap_group_register(struct devlink *devlink, | |
12009 | const struct devlink_trap_group *group) | |
12010 | { | |
12011 | struct devlink_trap_group_item *group_item; | |
12012 | int err; | |
12013 | ||
12014 | if (devlink_trap_group_item_lookup(devlink, group->name)) | |
12015 | return -EEXIST; | |
12016 | ||
12017 | group_item = kzalloc(sizeof(*group_item), GFP_KERNEL); | |
12018 | if (!group_item) | |
12019 | return -ENOMEM; | |
12020 | ||
12021 | group_item->stats = netdev_alloc_pcpu_stats(struct devlink_stats); | |
12022 | if (!group_item->stats) { | |
12023 | err = -ENOMEM; | |
12024 | goto err_stats_alloc; | |
12025 | } | |
12026 | ||
12027 | group_item->group = group; | |
95ad9555 | 12028 | |
f9f54392 IS |
12029 | err = devlink_trap_group_item_policer_link(devlink, group_item); |
12030 | if (err) | |
12031 | goto err_policer_link; | |
12032 | ||
95ad9555 IS |
12033 | if (devlink->ops->trap_group_init) { |
12034 | err = devlink->ops->trap_group_init(devlink, group); | |
12035 | if (err) | |
12036 | goto err_group_init; | |
12037 | } | |
12038 | ||
12039 | list_add_tail(&group_item->list, &devlink->trap_group_list); | |
fb9d19c2 LR |
12040 | devlink_trap_group_notify(devlink, group_item, |
12041 | DEVLINK_CMD_TRAP_GROUP_NEW); | |
12042 | ||
95ad9555 IS |
12043 | return 0; |
12044 | ||
12045 | err_group_init: | |
f9f54392 | 12046 | err_policer_link: |
95ad9555 IS |
12047 | free_percpu(group_item->stats); |
12048 | err_stats_alloc: | |
12049 | kfree(group_item); | |
12050 | return err; | |
12051 | } | |
12052 | ||
12053 | static void | |
12054 | devlink_trap_group_unregister(struct devlink *devlink, | |
12055 | const struct devlink_trap_group *group) | |
12056 | { | |
12057 | struct devlink_trap_group_item *group_item; | |
12058 | ||
12059 | group_item = devlink_trap_group_item_lookup(devlink, group->name); | |
12060 | if (WARN_ON_ONCE(!group_item)) | |
12061 | return; | |
12062 | ||
fb9d19c2 LR |
12063 | devlink_trap_group_notify(devlink, group_item, |
12064 | DEVLINK_CMD_TRAP_GROUP_DEL); | |
95ad9555 IS |
12065 | list_del(&group_item->list); |
12066 | free_percpu(group_item->stats); | |
12067 | kfree(group_item); | |
12068 | } | |
12069 | ||
12070 | /** | |
852e85a7 | 12071 | * devl_trap_groups_register - Register packet trap groups with devlink. |
95ad9555 IS |
12072 | * @devlink: devlink. |
12073 | * @groups: Packet trap groups. | |
12074 | * @groups_count: Count of provided packet trap groups. | |
12075 | * | |
12076 | * Return: Non-zero value on failure. | |
12077 | */ | |
852e85a7 JP |
12078 | int devl_trap_groups_register(struct devlink *devlink, |
12079 | const struct devlink_trap_group *groups, | |
12080 | size_t groups_count) | |
95ad9555 IS |
12081 | { |
12082 | int i, err; | |
12083 | ||
852e85a7 | 12084 | devl_assert_locked(devlink); |
95ad9555 IS |
12085 | for (i = 0; i < groups_count; i++) { |
12086 | const struct devlink_trap_group *group = &groups[i]; | |
12087 | ||
12088 | err = devlink_trap_group_verify(group); | |
12089 | if (err) | |
12090 | goto err_trap_group_verify; | |
12091 | ||
12092 | err = devlink_trap_group_register(devlink, group); | |
12093 | if (err) | |
12094 | goto err_trap_group_register; | |
12095 | } | |
95ad9555 IS |
12096 | |
12097 | return 0; | |
12098 | ||
12099 | err_trap_group_register: | |
12100 | err_trap_group_verify: | |
12101 | for (i--; i >= 0; i--) | |
12102 | devlink_trap_group_unregister(devlink, &groups[i]); | |
852e85a7 JP |
12103 | return err; |
12104 | } | |
12105 | EXPORT_SYMBOL_GPL(devl_trap_groups_register); | |
12106 | ||
12107 | /** | |
12108 | * devlink_trap_groups_register - Register packet trap groups with devlink. | |
12109 | * @devlink: devlink. | |
12110 | * @groups: Packet trap groups. | |
12111 | * @groups_count: Count of provided packet trap groups. | |
12112 | * | |
12113 | * Context: Takes and release devlink->lock <mutex>. | |
12114 | * | |
12115 | * Return: Non-zero value on failure. | |
12116 | */ | |
12117 | int devlink_trap_groups_register(struct devlink *devlink, | |
12118 | const struct devlink_trap_group *groups, | |
12119 | size_t groups_count) | |
12120 | { | |
12121 | int err; | |
12122 | ||
12123 | devl_lock(devlink); | |
12124 | err = devl_trap_groups_register(devlink, groups, groups_count); | |
7715023a | 12125 | devl_unlock(devlink); |
95ad9555 IS |
12126 | return err; |
12127 | } | |
12128 | EXPORT_SYMBOL_GPL(devlink_trap_groups_register); | |
12129 | ||
852e85a7 JP |
12130 | /** |
12131 | * devl_trap_groups_unregister - Unregister packet trap groups from devlink. | |
12132 | * @devlink: devlink. | |
12133 | * @groups: Packet trap groups. | |
12134 | * @groups_count: Count of provided packet trap groups. | |
12135 | */ | |
12136 | void devl_trap_groups_unregister(struct devlink *devlink, | |
12137 | const struct devlink_trap_group *groups, | |
12138 | size_t groups_count) | |
12139 | { | |
12140 | int i; | |
12141 | ||
12142 | devl_assert_locked(devlink); | |
12143 | for (i = groups_count - 1; i >= 0; i--) | |
12144 | devlink_trap_group_unregister(devlink, &groups[i]); | |
12145 | } | |
12146 | EXPORT_SYMBOL_GPL(devl_trap_groups_unregister); | |
12147 | ||
95ad9555 IS |
12148 | /** |
12149 | * devlink_trap_groups_unregister - Unregister packet trap groups from devlink. | |
12150 | * @devlink: devlink. | |
12151 | * @groups: Packet trap groups. | |
12152 | * @groups_count: Count of provided packet trap groups. | |
852e85a7 JP |
12153 | * |
12154 | * Context: Takes and release devlink->lock <mutex>. | |
95ad9555 IS |
12155 | */ |
12156 | void devlink_trap_groups_unregister(struct devlink *devlink, | |
12157 | const struct devlink_trap_group *groups, | |
12158 | size_t groups_count) | |
12159 | { | |
7715023a | 12160 | devl_lock(devlink); |
852e85a7 | 12161 | devl_trap_groups_unregister(devlink, groups, groups_count); |
7715023a | 12162 | devl_unlock(devlink); |
95ad9555 IS |
12163 | } |
12164 | EXPORT_SYMBOL_GPL(devlink_trap_groups_unregister); | |
12165 | ||
1e8c6619 IS |
12166 | static void |
12167 | devlink_trap_policer_notify(struct devlink *devlink, | |
12168 | const struct devlink_trap_policer_item *policer_item, | |
12169 | enum devlink_command cmd) | |
12170 | { | |
12171 | struct sk_buff *msg; | |
12172 | int err; | |
12173 | ||
12174 | WARN_ON_ONCE(cmd != DEVLINK_CMD_TRAP_POLICER_NEW && | |
12175 | cmd != DEVLINK_CMD_TRAP_POLICER_DEL); | |
c5e0321e LR |
12176 | if (!xa_get_mark(&devlinks, devlink->index, DEVLINK_REGISTERED)) |
12177 | return; | |
1e8c6619 IS |
12178 | |
12179 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
12180 | if (!msg) | |
12181 | return; | |
12182 | ||
12183 | err = devlink_nl_trap_policer_fill(msg, devlink, policer_item, cmd, 0, | |
12184 | 0, 0); | |
12185 | if (err) { | |
12186 | nlmsg_free(msg); | |
12187 | return; | |
12188 | } | |
12189 | ||
12190 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), | |
12191 | msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); | |
12192 | } | |
12193 | ||
12194 | static int | |
12195 | devlink_trap_policer_register(struct devlink *devlink, | |
12196 | const struct devlink_trap_policer *policer) | |
12197 | { | |
12198 | struct devlink_trap_policer_item *policer_item; | |
12199 | int err; | |
12200 | ||
12201 | if (devlink_trap_policer_item_lookup(devlink, policer->id)) | |
12202 | return -EEXIST; | |
12203 | ||
12204 | policer_item = kzalloc(sizeof(*policer_item), GFP_KERNEL); | |
12205 | if (!policer_item) | |
12206 | return -ENOMEM; | |
12207 | ||
12208 | policer_item->policer = policer; | |
12209 | policer_item->rate = policer->init_rate; | |
12210 | policer_item->burst = policer->init_burst; | |
12211 | ||
12212 | if (devlink->ops->trap_policer_init) { | |
12213 | err = devlink->ops->trap_policer_init(devlink, policer); | |
12214 | if (err) | |
12215 | goto err_policer_init; | |
12216 | } | |
12217 | ||
12218 | list_add_tail(&policer_item->list, &devlink->trap_policer_list); | |
c5e0321e LR |
12219 | devlink_trap_policer_notify(devlink, policer_item, |
12220 | DEVLINK_CMD_TRAP_POLICER_NEW); | |
12221 | ||
1e8c6619 IS |
12222 | return 0; |
12223 | ||
12224 | err_policer_init: | |
12225 | kfree(policer_item); | |
12226 | return err; | |
12227 | } | |
12228 | ||
12229 | static void | |
12230 | devlink_trap_policer_unregister(struct devlink *devlink, | |
12231 | const struct devlink_trap_policer *policer) | |
12232 | { | |
12233 | struct devlink_trap_policer_item *policer_item; | |
12234 | ||
12235 | policer_item = devlink_trap_policer_item_lookup(devlink, policer->id); | |
12236 | if (WARN_ON_ONCE(!policer_item)) | |
12237 | return; | |
12238 | ||
c5e0321e LR |
12239 | devlink_trap_policer_notify(devlink, policer_item, |
12240 | DEVLINK_CMD_TRAP_POLICER_DEL); | |
1e8c6619 IS |
12241 | list_del(&policer_item->list); |
12242 | if (devlink->ops->trap_policer_fini) | |
12243 | devlink->ops->trap_policer_fini(devlink, policer); | |
12244 | kfree(policer_item); | |
12245 | } | |
12246 | ||
12247 | /** | |
852e85a7 | 12248 | * devl_trap_policers_register - Register packet trap policers with devlink. |
1e8c6619 IS |
12249 | * @devlink: devlink. |
12250 | * @policers: Packet trap policers. | |
12251 | * @policers_count: Count of provided packet trap policers. | |
12252 | * | |
12253 | * Return: Non-zero value on failure. | |
12254 | */ | |
12255 | int | |
852e85a7 JP |
12256 | devl_trap_policers_register(struct devlink *devlink, |
12257 | const struct devlink_trap_policer *policers, | |
12258 | size_t policers_count) | |
1e8c6619 IS |
12259 | { |
12260 | int i, err; | |
12261 | ||
852e85a7 | 12262 | devl_assert_locked(devlink); |
1e8c6619 IS |
12263 | for (i = 0; i < policers_count; i++) { |
12264 | const struct devlink_trap_policer *policer = &policers[i]; | |
12265 | ||
12266 | if (WARN_ON(policer->id == 0 || | |
12267 | policer->max_rate < policer->min_rate || | |
12268 | policer->max_burst < policer->min_burst)) { | |
12269 | err = -EINVAL; | |
12270 | goto err_trap_policer_verify; | |
12271 | } | |
12272 | ||
12273 | err = devlink_trap_policer_register(devlink, policer); | |
12274 | if (err) | |
12275 | goto err_trap_policer_register; | |
12276 | } | |
1e8c6619 IS |
12277 | return 0; |
12278 | ||
12279 | err_trap_policer_register: | |
12280 | err_trap_policer_verify: | |
12281 | for (i--; i >= 0; i--) | |
12282 | devlink_trap_policer_unregister(devlink, &policers[i]); | |
852e85a7 JP |
12283 | return err; |
12284 | } | |
12285 | EXPORT_SYMBOL_GPL(devl_trap_policers_register); | |
12286 | ||
852e85a7 JP |
12287 | /** |
12288 | * devl_trap_policers_unregister - Unregister packet trap policers from devlink. | |
12289 | * @devlink: devlink. | |
12290 | * @policers: Packet trap policers. | |
12291 | * @policers_count: Count of provided packet trap policers. | |
12292 | */ | |
12293 | void | |
12294 | devl_trap_policers_unregister(struct devlink *devlink, | |
12295 | const struct devlink_trap_policer *policers, | |
12296 | size_t policers_count) | |
12297 | { | |
12298 | int i; | |
12299 | ||
12300 | devl_assert_locked(devlink); | |
12301 | for (i = policers_count - 1; i >= 0; i--) | |
12302 | devlink_trap_policer_unregister(devlink, &policers[i]); | |
12303 | } | |
12304 | EXPORT_SYMBOL_GPL(devl_trap_policers_unregister); | |
12305 | ||
ddb6e99e JK |
12306 | static void __devlink_compat_running_version(struct devlink *devlink, |
12307 | char *buf, size_t len) | |
12308 | { | |
12309 | const struct nlattr *nlattr; | |
12310 | struct devlink_info_req req; | |
12311 | struct sk_buff *msg; | |
12312 | int rem, err; | |
12313 | ||
ddb6e99e JK |
12314 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
12315 | if (!msg) | |
12316 | return; | |
12317 | ||
12318 | req.msg = msg; | |
12319 | err = devlink->ops->info_get(devlink, &req, NULL); | |
12320 | if (err) | |
12321 | goto free_msg; | |
12322 | ||
12323 | nla_for_each_attr(nlattr, (void *)msg->data, msg->len, rem) { | |
12324 | const struct nlattr *kv; | |
12325 | int rem_kv; | |
12326 | ||
12327 | if (nla_type(nlattr) != DEVLINK_ATTR_INFO_VERSION_RUNNING) | |
12328 | continue; | |
12329 | ||
12330 | nla_for_each_nested(kv, nlattr, rem_kv) { | |
12331 | if (nla_type(kv) != DEVLINK_ATTR_INFO_VERSION_VALUE) | |
12332 | continue; | |
12333 | ||
12334 | strlcat(buf, nla_data(kv), len); | |
12335 | strlcat(buf, " ", len); | |
12336 | } | |
12337 | } | |
12338 | free_msg: | |
12339 | nlmsg_free(msg); | |
12340 | } | |
12341 | ||
2bc50987 LR |
12342 | static struct devlink_port *netdev_to_devlink_port(struct net_device *dev) |
12343 | { | |
12344 | if (!dev->netdev_ops->ndo_get_devlink_port) | |
12345 | return NULL; | |
12346 | ||
12347 | return dev->netdev_ops->ndo_get_devlink_port(dev); | |
12348 | } | |
12349 | ||
1af0a094 | 12350 | void devlink_compat_running_version(struct devlink *devlink, |
ddb6e99e JK |
12351 | char *buf, size_t len) |
12352 | { | |
1af0a094 JK |
12353 | if (!devlink->ops->info_get) |
12354 | return; | |
b473b0d2 | 12355 | |
7715023a | 12356 | devl_lock(devlink); |
b473b0d2 | 12357 | __devlink_compat_running_version(devlink, buf, len); |
7715023a | 12358 | devl_unlock(devlink); |
ddb6e99e JK |
12359 | } |
12360 | ||
1af0a094 | 12361 | int devlink_compat_flash_update(struct devlink *devlink, const char *file_name) |
4eceba17 | 12362 | { |
bc75c054 | 12363 | struct devlink_flash_update_params params = {}; |
e0dcd386 | 12364 | int ret; |
4eceba17 | 12365 | |
1af0a094 JK |
12366 | if (!devlink->ops->flash_update) |
12367 | return -EOPNOTSUPP; | |
4eceba17 | 12368 | |
b44cfd4f JK |
12369 | ret = request_firmware(¶ms.fw, file_name, devlink->dev); |
12370 | if (ret) | |
1af0a094 | 12371 | return ret; |
bc75c054 | 12372 | |
7715023a | 12373 | devl_lock(devlink); |
52cc5f3a | 12374 | devlink_flash_update_begin_notify(devlink); |
bc75c054 | 12375 | ret = devlink->ops->flash_update(devlink, ¶ms, NULL); |
52cc5f3a | 12376 | devlink_flash_update_end_notify(devlink); |
7715023a | 12377 | devl_unlock(devlink); |
1b45ff6c | 12378 | |
b44cfd4f JK |
12379 | release_firmware(params.fw); |
12380 | ||
b473b0d2 | 12381 | return ret; |
4eceba17 JK |
12382 | } |
12383 | ||
af3836df JP |
12384 | int devlink_compat_phys_port_name_get(struct net_device *dev, |
12385 | char *name, size_t len) | |
12386 | { | |
12387 | struct devlink_port *devlink_port; | |
12388 | ||
12389 | /* RTNL mutex is held here which ensures that devlink_port | |
12390 | * instance cannot disappear in the middle. No need to take | |
12391 | * any devlink lock as only permanent values are accessed. | |
12392 | */ | |
12393 | ASSERT_RTNL(); | |
12394 | ||
12395 | devlink_port = netdev_to_devlink_port(dev); | |
12396 | if (!devlink_port) | |
12397 | return -EOPNOTSUPP; | |
12398 | ||
12399 | return __devlink_port_phys_port_name_get(devlink_port, name, len); | |
12400 | } | |
12401 | ||
7e1146e8 JP |
12402 | int devlink_compat_switch_id_get(struct net_device *dev, |
12403 | struct netdev_phys_item_id *ppid) | |
12404 | { | |
12405 | struct devlink_port *devlink_port; | |
12406 | ||
043b8413 VB |
12407 | /* Caller must hold RTNL mutex or reference to dev, which ensures that |
12408 | * devlink_port instance cannot disappear in the middle. No need to take | |
7e1146e8 JP |
12409 | * any devlink lock as only permanent values are accessed. |
12410 | */ | |
7e1146e8 | 12411 | devlink_port = netdev_to_devlink_port(dev); |
46737a19 | 12412 | if (!devlink_port || !devlink_port->switch_port) |
7e1146e8 JP |
12413 | return -EOPNOTSUPP; |
12414 | ||
12415 | memcpy(ppid, &devlink_port->attrs.switch_id, sizeof(*ppid)); | |
12416 | ||
12417 | return 0; | |
12418 | } | |
12419 | ||
070c63f2 JP |
12420 | static void __net_exit devlink_pernet_pre_exit(struct net *net) |
12421 | { | |
12422 | struct devlink *devlink; | |
ccdf0721 | 12423 | u32 actions_performed; |
11a861d7 | 12424 | unsigned long index; |
070c63f2 JP |
12425 | int err; |
12426 | ||
12427 | /* In case network namespace is getting destroyed, reload | |
12428 | * all devlink instances from this namespace into init_net. | |
12429 | */ | |
294c4f57 | 12430 | devlinks_xa_for_each_registered_get(net, index, devlink) { |
82465bec | 12431 | WARN_ON(!(devlink->features & DEVLINK_F_RELOAD)); |
644a66c6 | 12432 | mutex_lock(&devlink->lock); |
cbf6ab67 LR |
12433 | err = devlink_reload(devlink, &init_net, |
12434 | DEVLINK_RELOAD_ACTION_DRIVER_REINIT, | |
12435 | DEVLINK_RELOAD_LIMIT_UNSPEC, | |
12436 | &actions_performed, NULL); | |
644a66c6 | 12437 | mutex_unlock(&devlink->lock); |
cbf6ab67 LR |
12438 | if (err && err != -EOPNOTSUPP) |
12439 | pr_warn("Failed to reload devlink instance into init_net\n"); | |
437ebfd9 | 12440 | devlink_put(devlink); |
070c63f2 | 12441 | } |
070c63f2 JP |
12442 | } |
12443 | ||
12444 | static struct pernet_operations devlink_pernet_ops __net_initdata = { | |
12445 | .pre_exit = devlink_pernet_pre_exit, | |
12446 | }; | |
12447 | ||
f4b6bcc7 | 12448 | static int __init devlink_init(void) |
bfcd3a46 | 12449 | { |
070c63f2 JP |
12450 | int err; |
12451 | ||
12452 | err = genl_register_family(&devlink_nl_family); | |
12453 | if (err) | |
12454 | goto out; | |
12455 | err = register_pernet_subsys(&devlink_pernet_ops); | |
12456 | ||
12457 | out: | |
12458 | WARN_ON(err); | |
12459 | return err; | |
bfcd3a46 JP |
12460 | } |
12461 | ||
f4b6bcc7 | 12462 | subsys_initcall(devlink_init); |